EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
Inventeur(s)
Herrmann, Inge
Cipolato, Oscar
Abrégé
A composition including a temperature sensitive biocompatible solder and at least one type of nanoparticles, characterized in that a first type of nanoparticles is a fluorescent nanothermometer, wherein the fluorescent nanothermometer exhibits an excitation maximum and temperature dependent emission spectrum each in the range of between 650 and 1350 nm. The composition can be used for laser tissue soldering.
The present invention pertains to the use of a polyimide aerogel, wherein the polyimide aerogel comprises polyimide spheres having a diameter of 250 nm to 20 μm, as an insulating, sorption or filter material, as well as to methods for the preparation of the same.
C09D 179/08 - PolyimidesPolyesterimidesPolyamide-imidesPolyamide-acides ou précurseurs similaires de polyimides
C08G 73/10 - PolyimidesPolyester-imidesPolyamide-imidesPolyamide-acides ou précurseurs similaires de polyimides
C08J 9/28 - Mise en œuvre de substances macromoléculaires pour produire des matériaux ou objets poreux ou alvéolairesLeur post-traitement par élimination d'une phase liquide d'un objet ou d'une composition macromoléculaire, p. ex. par séchage du coagulum
H01B 3/30 - Isolateurs ou corps isolants caractérisés par le matériau isolantEmploi de matériaux spécifiés pour leurs propriétés isolantes ou diélectriques composés principalement de substances organiques matières plastiquesIsolateurs ou corps isolants caractérisés par le matériau isolantEmploi de matériaux spécifiés pour leurs propriétés isolantes ou diélectriques composés principalement de substances organiques résinesIsolateurs ou corps isolants caractérisés par le matériau isolantEmploi de matériaux spécifiés pour leurs propriétés isolantes ou diélectriques composés principalement de substances organiques cires
3.
METHOD FOR PRODUCING A LAMINATE OF WOOD AND CEMENTITIOUS COMPOSITIONS
A method for producing a laminate, wherein a wooden element is provided, the wooden element is coated on the top side with a an adhesive that is applied in liquid form and includes at least one polymer that is liquid at room temperature and contains silane groups, at least one liquid epoxy resin and at least one amine hardener, the applied adhesive is covered with a layer of a liquid cementitious composition while still wet, and the liquid cementitious composition and the adhesive each cure. The method enables the durable joining of wooden elements and cementitious elements in an easy-to-implement, wet-on-wet method. The laminates obtained from the method are comparatively light, stable and robust and are especially suitable as sustainable components in above-ground construction.
C04B 111/00 - Fonction, propriétés ou utilisation des mortiers, du béton ou de la pierre artificielle
C09D 5/00 - Compositions de revêtement, p. ex. peintures, vernis ou vernis-laques, caractérisées par leur nature physique ou par les effets produitsApprêts en pâte
C09D 163/00 - Compositions de revêtement à base de résines époxyCompositions de revêtement à base de dérivés des résines époxy
4.
BINDER-FREE BULK SILICA AEROGEL MATERIAL, METHOD OF PRODUCING THE SAME AND USES THEREOF
EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
Inventeur(s)
Zhao, Shanyu
Carl, Fionn
Wernery, Jannis
Malfait, Wim
Koebel, Matthias
Kufel, Lukasz
Ben-Ishai, Avner
Abrégé
A method of preparing a binder-free bulk silica aerogel material, comprising the steps of: (i) providing an amount of granular silica aerogel material, and (ii) carrying out a curing step wherein the granular silica aerogel material is contacted with a curing medium, thereby converting the granular silica aerogel material to the bulk silica aerogel material. According to the invention, the granular silica aerogel material is hydrophobic, and the curing medium is an aqueous curing medium which is either acidic with a pH<4 or basic with a pH>10. A resulting binder-free bulk silica aerogel material comprises silica aerogel granules which are interface-bonded and has the following properties: a thermal conductivity below 24 mW/(m·K), a compressive strength of at least 5 kPa, a 3-point flexural stress (σf), determined with a specimen having a longest dimension which is four times the specimen thickness, of at least 0.5 kPa.
EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
Inventeur(s)
Schoenwald, Stefan
Vallely, Sven
Abrégé
The disclosed invention consists of a low noise engineered wood building element (1) with a length (L) a width (B) and a panel thickness (P), consisting of at least one solid wooden layer (10) or a wood laminate 5 with a given number n ≥ 2 of wood layer (10), showing improved noise control performance. This is reached through a plurality of single troughs (ABH) in form of trough-shaped indentations, recessed in the top surface (100), distributed over the top surface (100) of the panel (1), reaching within the panel thickness (P), with a maximum depth of 90% of the 10 panel thickness (P), each trough (ABH) has a circular, elliptical or rectangular diameter between 0.5m and 3m with necessarily defined spherical, ellipsoid or cuboid shaped profile, wherein the troughs (ABH) are filled between 50% and 100% of their profile with damping bulk material (2). 15 (Fig.1c)
E04B 1/82 - Isolation thermique ou acoustique, absorption ou réflexion de la chaleur ou du sonAutres méthodes de construction procurant des conditions thermiques ou acoustiques favorables, p. ex. par accumulation de chaleur à l'intérieur des murs spécifiquement relatives au son uniquement
E04B 5/12 - Structures portantes de planchers, formées essentiellement d'éléments préfabriqués comportant des poutres de bois
E04C 2/12 - Éléments de construction de relativement faible épaisseur pour la construction de parties de bâtiments, p. ex. matériaux en feuilles, dalles ou panneaux caractérisés par des matériaux spécifiés en bois, fibres, copeaux, tiges de végétaux ou analoguesÉléments de construction de relativement faible épaisseur pour la construction de parties de bâtiments, p. ex. matériaux en feuilles, dalles ou panneaux caractérisés par des matériaux spécifiés en matières plastiquesÉléments de construction de relativement faible épaisseur pour la construction de parties de bâtiments, p. ex. matériaux en feuilles, dalles ou panneaux caractérisés par des matériaux spécifiés en produits mousse en bois plein
G10K 11/00 - Procédés ou dispositifs pour transmettre, conduire ou diriger le son en généralProcédés ou dispositifs de protection contre le bruit ou les autres ondes acoustiques ou pour amortir ceux-ci, en général
E04C 2/32 - Éléments de construction de relativement faible épaisseur pour la construction de parties de bâtiments, p. ex. matériaux en feuilles, dalles ou panneaux caractérisés par la forme ou la structure formés d'un matériau ondulé ou cannelé analogue à des feuillesÉléments de construction de relativement faible épaisseur pour la construction de parties de bâtiments, p. ex. matériaux en feuilles, dalles ou panneaux caractérisés par la forme ou la structure composés de couches de ce genre avec ou sans couches d'un matériau plat en feuilles
E04B 2/00 - Murs, p. ex. cloisons, pour bâtimentsStructure des murs en ce qui concerne l'isolationAssemblages spécifiques pour les murs
A patch for detecting by at least one non-invasive imaging technique a leak of a biological fluid at an application site, wherein the patch includes either a layer including one or more first portions containing a first gel, one or more second portions containing a second gel and at least one sensing component embedded within the first gel and/or the second gel, or a layer containing a hydrogel and at least one sensing component, such as aerogel particles, and xerogel particles, embedded within the hydrogel.
EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
Inventeur(s)
Homann, Gerrit
Battaglia, Corsin
Abrégé
The invention relates to a process for coating electrode surfaces with a cationic polymer, wherein the process comprises at least the steps of: a) Provision of an electrode; b) Dissolution of a cationic polymer according to the following formula (I), wherein X-is selected from the group consisting of C1-, FSI-, TFSI-, TFA-, BETI-, BF4-, DFOB-, BOB-, NO3-, PO2F2-; R1, R2 are independently selected from the group consisting of H, C1-C5 linear or branched alkyl or fluorinated derivatives thereof, and n = 10 - 10.000; in a solvent, wherein the solvent comprises equal to or greater than 30 wt.-% propylene carbonate; c) Coating of at least one electrode surface of the electrode provided in process step a) by deposition of the polymer solution obtained in process step b) to at least a part of the electrode surface; and d) Drying of the coated electrode obtained in process step c). In addition, the invention relates to a coated electrode and a solid electrolyte cell comprising a coated electrode.
H01M 4/131 - Électrodes à base d'oxydes ou d'hydroxydes mixtes, ou de mélanges d'oxydes ou d'hydroxydes, p. ex. LiCoOx
H01M 4/1391 - Procédés de fabrication d'électrodes à base d'oxydes ou d'hydroxydes mixtes, ou de mélanges d'oxydes ou d'hydroxydes, p. ex. LiCoOx
H01M 4/36 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs
H01M 4/525 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'oxydes ou d'hydroxydes inorganiques de nickel, de cobalt ou de fer d'oxydes ou d'hydroxydes mixtes contenant du fer, du cobalt ou du nickel pour insérer ou intercaler des métaux légers, p. ex. LiNiO2, LiCoO2 ou LiCoOxFy
H01M 4/62 - Emploi de substances spécifiées inactives comme ingrédients pour les masses actives, p. ex. liants, charges
H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p. ex. batteries à insertion ou intercalation de lithium dans les deux électrodesBatteries à l'ion lithium
H01M 10/0568 - Matériaux liquides caracterisés par les solutés
H01M 10/0569 - Matériaux liquides caracterisés par les solvants
H01M 4/02 - Électrodes composées d'un ou comprenant un matériau actif
8.
CONDUCTIVE OR SEMI-CONDUCTIVE CLUSTERS PRODUCED VIA SPARK ABLATION
ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL) (Suisse)
EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
Inventeur(s)
Koolen, Cedric David
Zuettel, Andreas
Abrégé
A conductive or semi-conductive cluster essentially comprises or consists of a first-type material, wherein the first-type material comprises a number of surface atoms that is at least half of a number of total atoms of the first-type material, and wherein the cluster comprises less than 100 ppm of a second-type material being different from the first-type material. The cluster is produced via spark ablation.
B22F 9/14 - Fabrication des poudres métalliques ou de leurs suspensionsAppareils ou dispositifs spécialement adaptés à cet effet par des procédés physiques en utilisant des décharges électriques
B01J 23/38 - Catalyseurs contenant des métaux, oxydes ou hydroxydes métalliques non prévus dans le groupe des métaux nobles
B01J 23/70 - Catalyseurs contenant des métaux, oxydes ou hydroxydes métalliques non prévus dans le groupe du cuivre ou des métaux du groupe du fer
B01J 37/34 - Irradiation ou application d'énergie électrique, magnétique ou ondulatoire, p. ex. d'ondes ultrasonores
H01M 4/90 - Emploi de matériau catalytique spécifié
A kit of parts including two components, the first component being a patch including a non-degradable synthetic hydrogel and the second component being an impregnating fluid, which, upon in-situ polymerisation, anchors the patch on a tissue. The patch may include additional layers including sensing components or therapeutic components. In addition, the use of the kit of parts and the use of an impregnating fluid in surgery, in particular as suture or staple supports, e.g. suture or staple supports in the abdominal region such as intestinal anastomosis sites, or for sealing of artificial stoma.
A61L 24/00 - Adhésifs ou ciments chirurgicauxAdhésifs pour dispositifs de colostomie
A61L 24/04 - Adhésifs ou ciments chirurgicauxAdhésifs pour dispositifs de colostomie contenant des matériaux macromoléculaires
A61L 24/06 - Adhésifs ou ciments chirurgicauxAdhésifs pour dispositifs de colostomie contenant des matériaux macromoléculaires obtenus par des réactions faisant intervenir uniquement des liaisons carbone-carbone non saturées
B33Y 80/00 - Produits obtenus par fabrication additive
10.
SHEAR THINNING TWO-PHASE COMPOSITION AND PRODUCTS MADE THEREOF
EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
ETH ZÜRICH (Suisse)
Inventeur(s)
Danner, Patrick Marcel
Opris, Dorina Maria
Pleij, Tazio
Bayles, Alexandra Victoria
Vermant, Jan
Abrégé
The present invention pertains to a shear thinning two-phase composition based on polysiloxanes and a filler. The invention is further directed to associated methods of manufacturing the composition, to the use of the composition as an ink and to products made from the composition.
C08J 3/05 - Production de solutions, dispersions, latex ou gel par d'autres procédés que ceux utilisant les techniques de polymérisation en solution, en émulsion ou en suspension dans un milieux aqueux à partir de polymères solides
11.
MEDICAL DEVICE COMPRISING A WEARABLE TEXTILE SENSOR TO PROTECT AGAINST PRESSURE INJURIES
EMPA, EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
Inventeur(s)
Wolf, Ursula
Da Silva-Kress, Oliver
Cantieni, Tarcisi
Boesel, Luciano
Rossi, René
Ansari, Nazanin
Michler, Markus
Abrégé
The present invention relates to a medical device (1) for determining an oxygen saturation in a tissue of a subject, comprising: a sensor (2) comprising a flexible textile (10) comprising a plurality of first optical fibers (11) and a plurality of second optical fibers (12), wherein the first optical and second optical fibers (11, 12) each comprise a first end (11a, 12a) and a second end (11b, 12b), wherein the sensor (2) further comprises a first light generating unit (3) configured to generate and couple light of a first wavelength into the first ends (11a) of the first optical fibers (11) and to generate and couple light of a second wavelength into the second ends (12a) of the first optical fibers (11), the first wavelength being different from the second wavelength, wherein the respective first optical fiber (11) is configured to emit light via a light emitting section (21) of the respective first optical fiber (11) to irradiate tissue of the subject, the light emitting section (21) being arranged between the first end (11a) and the second end (11b) of the respective first optical fiber (11), and wherein the respective second optical fiber (12) comprises a light receiving section (22) configured to receive light coming from the tissue, the light receiving section (22) being arranged between the first end (12a) and the second end (12b) of the respective second optical fiber (12), wherein the sensor (2) further comprises a first light detector unit (4) operatively connected to the second optical fibers (12) and configured to detect light received by the light receiving section (22) of the respective second optical fiber (12), and an analyzing unit (5) configured to determine an oxygen saturation value of the tissue using intensities of light detected by the first light detector unit (4).
A61B 5/1455 - Mesure des caractéristiques du sang in vivo, p. ex. de la concentration des gaz dans le sang ou de la valeur du pH du sang en utilisant des capteurs optiques, p. ex. des oxymètres à photométrie spectrale
A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
Suspensions containing oxidic nanoparticles as a dispersed phase and an aqueous solution containing citric acid as a diluent are disclosed. Advantageously, the oxidic nanoparticles contain bioglass and ceria. Also further disclosed are topical dosage forms including such oxidic nanoparticles and uses thereof. The dosage forms were found to be useful in the treatment of wounds and post-operative lesions, and particularly for the prevention of seroma, the prevention of infections and/or the prevention of inflammation.
A61P 17/02 - Médicaments pour le traitement des troubles dermatologiques pour traiter les blessures, les ulcères, les brûlures, les cicatrices, les cheloïdes, ou similaires
A method for coating a perishable food product such as fresh fruits and vegetables is disclosed. The coating includes applying a bleached cellulose nanofibers (CNF) composition to the food product. Coating compositions suitable for such methods and coated food products containing the coating are also disclosed. Due to the coating compositions employed, a sustainable packaging for a food product is provided.
A method of handling solder material, the method comprising the steps of - providing a solder material in form of a powder, and - compressing said solder material to such extent that a solid-state welding process between grains of said powder is initiated, and/or thermally treating said solder material, thereby creating a mechanically stable piece of solder material, which in particular may be applied in a soldering method for establishing an electrically conductive and mechanical connection between a cap shaped conductor element (6, 6', 6'') and a further conductor element (5). The invention further relates to a method of manufacturing a current-limiting fuse and a current-limiting fuse manufactured according to the method.
B23K 35/02 - Baguettes, électrodes, matériaux ou environnements utilisés pour le brasage, le soudage ou le découpage caractérisés par des propriétés mécaniques, p. ex. par la forme
EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
Inventeur(s)
Wernery, Jannis
Baldini, Luca
Trobiani Di Canto, Juliana Azul
Karakitsiou, Despoina
Mancebo, Francisco
Moore, Robert James
Abrégé
22 2 permanently. This is reached by using at least one pyrolysis step of thermal insulation biomass particles bound with an additional binder or a binder contained in the material or by directly compounding pyrolysed thermal insulation biomass particles, resulting in a composition shaped on the macroscopic and microscopic level.
C04B 38/00 - Mortiers, béton, pierre artificielle ou articles de céramiques poreuxLeur préparation
C04B 35/52 - Produits céramiques mis en forme, caractérisés par leur compositionCompositions céramiquesTraitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques à base de non oxydes à base de carbone, p. ex. graphite
C04B 28/00 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates
B01J 20/20 - Compositions absorbantes ou adsorbantes solides ou compositions facilitant la filtrationAbsorbants ou adsorbants pour la chromatographieProcédés pour leur préparation, régénération ou réactivation contenant une substance inorganique contenant du carbone libreCompositions absorbantes ou adsorbantes solides ou compositions facilitant la filtrationAbsorbants ou adsorbants pour la chromatographieProcédés pour leur préparation, régénération ou réactivation contenant une substance inorganique contenant du carbone obtenu par des procédés de carbonisation
B01J 20/30 - Procédés de préparation, de régénération ou de réactivation
EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
Inventeur(s)
Wolf, Ursula
Da Silva-Kress, Oliver
Cantieni, Tarcisi
Morlec, Elodie
Abrégé
The present invention relates to a photonic sensor device (1), the sensor device comprising a flexible base layer (40), a plurality of first optical fibers (2) and a plurality of second optical fibers (3), each first optical fiber (2) being connected to the flexible base layer (40) and comprising a loop (20) for emitting light (L) and each second optical fiber (3) connected to the flexible base layer (40) and comprising a loop (30) for collecting light (L), wherein the loops (20, 30) of the first and second optical fibers protrude from a top side (40a) of the flexible base layer (40), and a flexible mask layer (10) arranged on top of the top side (40a) of the flexible base layer (40), the flexible mask layer (10) comprising a plurality of through-holes (100), wherein each loop (20, 30) protrudes into one of the through-holes (100).
G01N 21/35 - CouleurPropriétés spectrales, c.-à-d. comparaison de l'effet du matériau sur la lumière pour plusieurs longueurs d'ondes ou plusieurs bandes de longueurs d'ondes différentes en recherchant l'effet relatif du matériau pour les longueurs d'ondes caractéristiques d'éléments ou de molécules spécifiques, p. ex. spectrométrie d'absorption atomique en utilisant la lumière infrarouge
A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
A61B 5/145 - Mesure des caractéristiques du sang in vivo, p. ex. de la concentration des gaz dans le sang ou de la valeur du pH du sang
EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
Inventeur(s)
Wu Klingler, Wenyu
Gaan, Sabyasachi
Abrégé
The present invention is directed to epoxy thermoset polymers comprising phosphorous and phosphonate triple-bonded epoxy thermosets with the phosphonate forming chain members within the epoxy thermoset polymer network and being covalently triple bonded to the polymer network via a phosphonate P-C and two P-O bonds. The invention also encompasses methods for preparing these epoxy thermoset polymer, their uses and products comprising a thermoset epoxy polymer of the invention.
C08G 59/40 - Macromolécules obtenues par polymérisation à partir de composés contenant plusieurs groupes époxyde par molécule en utilisant des agents de durcissement ou des catalyseurs qui réagissent avec les groupes époxyde caractérisées par les agents de durcissement utilisés
EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
Inventeur(s)
Mavrona, Elena
Graf, Jil
Shorubalko, Ivan
Hack, Erwin
Abrégé
The disclosed invention presents a production method of an optical setup, comprising at least one mechanically robust freestanding ultra-thin optical element with a supporting frame, using at least one thin film technique step, which is cost-effective and highly reproducible. This is reached by A) coating of a separation layer and a subsequent substrate on a carrier, B) coating of a photoresist layer on the substrate/separation layer/carrier system, before C) the photoresist layer is structured and coated with a metal layer to obtain the designed metamaterial, before D) a protective layer is spin-coated onto the metal layer/ substrate/ separation/ carrier-system, forming at least one ultra-thin optical element and directly afterwards, E) a supporting frame is applied using 3D printing of a thermoplastic onto the carrier, and protective layer to later individuate the optical elements, F) fixed ultra-thin optical elements are removed from the carrier by dissolving the separation layer.
B29D 11/00 - Fabrication d'éléments optiques, p. ex. lentilles ou prismes
G01N 21/3586 - CouleurPropriétés spectrales, c.-à-d. comparaison de l'effet du matériau sur la lumière pour plusieurs longueurs d'ondes ou plusieurs bandes de longueurs d'ondes différentes en recherchant l'effet relatif du matériau pour les longueurs d'ondes caractéristiques d'éléments ou de molécules spécifiques, p. ex. spectrométrie d'absorption atomique en utilisant la lumière infrarouge en utilisant la lumière de l'infrarouge lointainCouleurPropriétés spectrales, c.-à-d. comparaison de l'effet du matériau sur la lumière pour plusieurs longueurs d'ondes ou plusieurs bandes de longueurs d'ondes différentes en recherchant l'effet relatif du matériau pour les longueurs d'ondes caractéristiques d'éléments ou de molécules spécifiques, p. ex. spectrométrie d'absorption atomique en utilisant la lumière infrarouge en utilisant un rayonnement térahertz par spectroscopie térahertz dans le domaine temporel [THz-TDS]
H01P 11/00 - Appareils ou procédés spécialement adaptés à la fabrication de guides d'ondes, résonateurs, lignes ou autres dispositifs du type guide d'ondes
H01Q 15/00 - Dispositifs pour la réflexion, la réfraction, la diffraction ou la polarisation des ondes rayonnées par une antenne, p. ex. dispositifs quasi optiques
19.
SHEAR-THINNING GEL COMPOSITIONS FOR PREPARING ELECTRONICALLY CONDUCTIVE INKS
EMPA EIDGENOSSISCHE MATERIALPRUFUNGS- UND FORSCHUNGSANSTALT (Suisse)
Inventeur(s)
Aeby, Xavier
Nystrom, Gustav
Poulin, Alexandre
Siqueira, Gilberto
Abrégé
The present invention is directed to a shear-thinning gel composition for producing a dry, water-stable and electronically conductive ink, comprising (a) dispersed electrically conductive graphite flake particles and (b) at least one further type of electronically conductive particles selected from carbon black and conductive pyrolyzed plant carbon components in a specific ratio of (a) to (b) as well as (c) a dissolved binder based on or consisting of shellac dissolved in a suitable solvent, where-in the ratio of the total of the electrically conductive particles (a)+(b) and the dissolved binder (c) and the weight proportion of the electrically conductive particles in the composition are specified. The invention further relates to the dried and electronically conductive inks, methods for producing the gel compositions and the use of these gel compositions for preparing, optionally ink-jet printing or robocasting 2D or 3D print products, in particular for preparing electronic devices, such as, for example, flexible electronic devices, biosensors, logic and memory devices, supercapacitors, batteries, flexible batteries, capacitive sensors, RFID tags, and smart packaging.
EMPA Eidgenossische Material-prufungs- Und Forschungsanstalt (Suisse)
Wolfgang Schneider Ingenieurburo (Suisse)
Inventeur(s)
Soltic, Patrik
Omanovic, Andyn
Schneider, Wolfgang
Abrégé
In order to provide a more reliable configuration for a hydraulic drive for accelerating and braking in particular a gas exchange valve (20) of internal combustion engines or other reciprocating engines, in particular if the occurring maximum travel of the moving mass can deviate considerably from an expected setpoint position, it is proposed that the drive piston (23) has at least one control edge (31) corresponding to an inflow opening (33), which, when a defined travel hab has been attained, prevents the inflow of drive pressure p1 into the drive chamber (27) and/or prevents the low-loss outflow of pressure medium from the brake chamber (29) to the basic pressure level (40), wherein the remaining hydraulic drive force vanishes, becomes small or changes its sign when said travel hab is attained.
EMPA Eidgenössische Materialprüfungs- und Forschungsanstalt (Suisse)
Inventeur(s)
Guerra, Carlos
Petho, Laszlo
Michler, Johann
Szkudlarek, Aleksandra
Abrégé
The disclosed invention comprises a vacuum system cluster tool (0), comprising a dual chamber setup with at least one chemical vapour deposition chamber (1) and at least one physical vapour deposition chamber (3), with corresponding chemical vapour deposition means (10, 11, 12, 13) and corresponding physical vapour deposition means (30, 31, 32, 33) attached, as compact inexpensive, simply constructed vacuum system cluster tool (1) without mechanical sample transfer is created. Such a system cluster tool (0) is reached such that the at least one chemical vapour deposition chamber (1) and the at least one physical vapour deposition chamber (3) are divided by a gate valve (2) but directly connected on two opposite sides to the gate valve (2), whereby a CVD or ALD preparation step with closed gate valve (2) onto the surface (400) and a subsequent PVD deposition after opening the gate valve (2) can be performed, while the physical vapour deposition is carried out through the physical vapour deposition chamber (3) and completely through the opening of the gate valve (2) onto the surface (400) of the substrate (40), which can also be repeated in several cycles and whereby a substrate (40) transfer out of the chemical vapour deposition chamber (1) or a linear substrate (40) movement is not necessary.
C23C 16/455 - Revêtement chimique par décomposition de composés gazeux, ne laissant pas de produits de réaction du matériau de la surface dans le revêtement, c.-à-d. procédés de dépôt chimique en phase vapeur [CVD] caractérisé par le procédé de revêtement caractérisé par le procédé utilisé pour introduire des gaz dans la chambre de réaction ou pour modifier les écoulements de gaz dans la chambre de réaction
C23C 16/52 - Commande ou régulation du processus de dépôt
C23C 16/54 - Appareillage spécialement adapté pour le revêtement en continu
C23C 14/54 - Commande ou régulation du processus de revêtement
C23C 14/56 - Appareillage spécialement adapté au revêtement en continuDispositifs pour maintenir le vide, p. ex. fermeture étanche
C23C 16/458 - Revêtement chimique par décomposition de composés gazeux, ne laissant pas de produits de réaction du matériau de la surface dans le revêtement, c.-à-d. procédés de dépôt chimique en phase vapeur [CVD] caractérisé par le procédé de revêtement caractérisé par le procédé utilisé pour supporter les substrats dans la chambre de réaction
22.
MULTI-CELL MONOLITHIC THIN-FILM BATTERY AND FABRICATION METHOD THEREOF
EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
Inventeur(s)
Futscher, Moritz
Brinkman, Luc
Aribia, Abdessalem
Romanyuk, Yaroslav
Müller, André
Abrégé
The disclosed invention consists of a multi-cell monolithic thin-film battery (0), comprising one single substrate (1) on which two and more monolithic battery cells, comprising a cathode current collector (20), a cathode electrode layer (21), a solid electrolyte layer (22) and an anode current collector (23) deposited onto each other, wherein all monolithic battery cells (2, 2') are produced by thin-film techniques with layer thicknesses between nm and 20 μm, avoiding an anode layer during manufacturing, therefore named monolithic anode-free battery cells (2, 10 2'), with improved properties and based on a viable method for connecting multiple cells to a stacked thin-film battery. This is reached by deposition of all layers of the resulting multi-cell monolithic thin-film battery (0) are manufactured on top of each other on the single substrate (1), a blocking layer as material layer blocking electrons and ions is deposited between the cathode current collector (20) and the anode current collector (23) of each adjacent monolithic anode-free battery cells (2, 2'), with deposited thickness of the blocking layer between 5 nm and 1 μm and the first layer of the next adjacent monolithic anode-free battery cell (2') is deposited on the last layer of the previous monolithic anode-free battery cell (2).
H01M 10/0585 - Structure ou fabrication d'accumulateurs ayant uniquement des éléments de structure plats, c.-à-d. des électrodes positives plates, des électrodes négatives plates et des séparateurs plats
EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
Inventeur(s)
Liu, Ming
Lettieri, Luana
Lucchini, Mattia Alberto
Nyström, Gustav
Geiger, Thomas
Abrégé
A method for producing hydrophobic dry surface-modified fibrillated cellulose to improve its dispersion in hydrophobic matrices comprising the steps of: a.) providing micro-fibrillated cellulose suspension of 5 to 30 wt% in water, preferably approx. 7 to 11 wt%; b.) adding a surfactant to the suspension with a mass ration of surfactant to micro-fibrillated cellulose suspension of 0.1 to 2.0 wt%, preferably 0.5 to 1.0 wt%, more preferably about 0.8 wt%; c.) adding a surface modifier to the suspension with a mass ratio of surface modifier to micro- fibrillated cellulose dry matter of 20 to 300 wt%, preferably 80 to 120 wt%, more preferably approx. 100 wt%, wherein the surface modifier is obtained through a chemical reaction of a silane compound with a phenolic compound to create covalent bonds between the silane compound and the phenolic compound; d.) covalently binding the surface modifier to the micro-fibrillated cellulose via (i) hydrolysis of the surface modifier to form reactive silanol groups (R-Si-OH) and (ii) condensation of the silanol groups of the surface modifier with the available OH-groups of the micro-fibrillated cellulose, e.) adding a plasticizer to the suspension of surface modified micro-fibrillated cellulose; f.) drying the suspension to remove water and obtain the dry powder of surface-modified micro-fibrillated cellulose.
EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
Inventeur(s)
Wei, Kongchang
Boesel, Luciano
Rossi, René
Wang, Wuchao
Sharma, Khushdeep
Abrégé
A method for producing an individual solid polymer fiber from a precursor liquid (L1) comprising aggregatable, polymerizable and/or cross-linkable polymer precursors, especially from a precursor liquid comprising polymerizable and/or cross-linkable polymer precursors, by microfluidic-based wet spinning comprises the steps of: a) Introducing the precursor liquid (L1) into a first capillary tube (11) coaxially protruding into a second capillary tube (12); b) Producing a liquid fiber with core-shell structure in the second capillary tube (12); c) Optionally, injecting the liquid fiber with core-shell structure produced in step b) into a third capillary (13) tube to produce a fiber with core-shell-sheath structure; d) Guiding the liquid fiber with core-shell structure, optionally having a sheath, as produced in step b) or in step c) through a stationary liquid phase (SP); e) Curing the liquid sheet of the fiber with core-shell structure at least in one of steps c) and d) to provide a fiber having a liquid core (22) embedded in a cured shell (21); f) Collecting the fiber; g) After step f), solidifying the liquid core (22) of the fiber; h) Removing the cured shell (21) from the solid core (22') to obtain the solid polymer fiber.
EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND (Suisse)
Inventeur(s)
Xie, Lei
Defraeye, Thijs
Rubinetti, Donato
Abrégé
The invention discloses an electrohydrodynamic gas flowrate amplifier (1) for generating a gasflow comprising a gas flow generator (4) and an gas flow accelerator (5), where a first gas flow (2) generable by the gas flow generator (4) and directable to the gas flow accelerator (5). The gas flow accelerator (5) is constructed in a way that the second gas flow (3) is accelerable by the first gas flow (2). The gas flow accelerator (5) is a Coanda gas flow accelerator and employing the Coanda effect to accelerate the second gas flow (3) by the first gas flow (2) from the gas flow generator (4) to a gas outlet (6). The gas flow generator (4) is an electro-hydrodynamic gas flow generator. The invention also discloses a washer for washing medical instruments comprising an electrohydrodynamic gas flowrate amplifier (1). The invention also discloses a method of amplifying gas using the electrohydrodynamic gas flowrate amplifier (1). The invention also discloses the using of an electrohydrodynamic gas flowrate amplifier (1).
F04F 5/16 - Pompes à jet, p. ex. dispositifs dans lesquels le flux est produit par la chute de pression causée par la vitesse d'un autre fluide le fluide inducteur étant un fluide compressible déplaçant des fluides compressibles
A61B 90/70 - Dispositifs de nettoyage spécialement adaptés aux instruments chirurgicaux
B08B 1/00 - Nettoyage par des procédés impliquant l'utilisation d'outils
A61B 90/40 - Appareils fixés au patient, ou à proximité de celui-ci, spécialement adaptés pour fournir un environnement chirurgical aseptique
B08B 5/02 - Nettoyage par la force de jets, p. ex. le soufflage de cavités
A61L 2/20 - Procédés ou appareils de désinfection ou de stérilisation de matériaux ou d'objets autres que les denrées alimentaires ou les lentilles de contactAccessoires à cet effet utilisant des substances chimiques des substances gazeuses, p. ex. des vapeurs
26.
A METHOD FOR PRODUCING A COMPOUND COMPRISING A POLYHYDROXYALCANOATE AND CELLULOSE
Process for manufacturing a biodegradable compound, said process comprising the steps of, in order: • (i) providing an extruder with at least one rotating screw, at least two feeding units suitable for being fed with ingredients, and an extruder die, • (ii) feeding the first feeding unit with a PHA polymer and maleic anhydride (MA), • (iii) feeding the second feeding unit with cellulosic fibres, • (iv) rotating the screw to mix the PHA and maleic anhydride ingredients and graft said maleic anhydride onto said PHA molecules to form PHA grafted with MA ("PHA-g-MA") in an amount of 1 to 10%, preferably 1 to 3% of the total content of PHA, and then mixing said PHA-g-MA with cellulosic fibres to form a molten compound of PHA-g-MA and cellulosic fibres, • (v) passing said molten compound through said extruder die and shaping said extruded compound into different compound formats.
B29B 9/06 - Fabrication de granulés par division de matière préformée sous forme de filaments, p. ex. combinée avec l'extrusion
B29B 9/12 - Fabrication de granulés caractérisés par la structure ou la composition
B29B 7/48 - MélangeMalaxage continu, avec dispositifs mécaniques de mélange ou de malaxage avec dispositifs de mélange ou de malaxage mobiles rotatifs avec plus d'un arbre à dispositifs à engrènement, p. ex. à vis qui s'engrènent
B29B 7/60 - Éléments constitutifs, détails ou accessoiresOpérations auxiliaires pour alimentation, p. ex. pièces de guidage pour la matière à traiter
B29C 48/00 - Moulage par extrusion, c.-à-d. en exprimant la matière à mouler dans une matrice ou une filière qui lui donne la forme désiréeAppareils à cet effet
B29C 48/02 - Petits appareils d’extrusion, p. ex. extrudeuses à main, jouets ou de laboratoire
B29C 48/04 - Moulage par extrusion, c.-à-d. en exprimant la matière à mouler dans une matrice ou une filière qui lui donne la forme désiréeAppareils à cet effet caractérisées par la forme à l’extrusion de la matière extrudée en forme de particules
B29C 48/05 - Moulage par extrusion, c.-à-d. en exprimant la matière à mouler dans une matrice ou une filière qui lui donne la forme désiréeAppareils à cet effet caractérisées par la forme à l’extrusion de la matière extrudée filamentaire, p. ex. fils
B29C 48/285 - Alimentation de l’extrudeuse en matière d’extrusion
The invention relates to a method for producing a laminate, characterized in, characterized in that - a wooden body is provided, - a curable composition in the liquid state is applied to the latter, and - the composition cures, the composition containing at least one organic binder and at least 80 % by weight of mineral fillers based on the entire composition. The method enables the permanent joining of wooden bodies and compositions based on an organic binder and having a high content of mineral fillers. The laminates obtained from the method are comparatively light, stable and robust and are especially suitable as sustainable components for building construction, particularly as a ceiling element.
B05D 7/06 - Procédés, autres que le flocage, spécialement adaptés pour appliquer des liquides ou d'autres matériaux fluides, à des surfaces particulières, ou pour appliquer des liquides ou d'autres matériaux fluides particuliers à du bois
B28B 1/00 - Fabrication d'objets façonnés à partir du matériau
B28B 1/16 - Fabrication d'objets façonnés à partir du matériau par simple coulée, le matériau n'étant ni alimenté sous pression, ni réellement compacté pour la fabrication d'objets stratifiés
B28B 11/04 - Appareillages ou procédés pour le traitement ou le travail des objets façonnés pour le revêtement
B28B 11/24 - Appareillages ou procédés pour le traitement ou le travail des objets façonnés pour faire prendre ou durcir
B28B 19/00 - Machines ou méthodes pour appliquer le matériau sur des surfaces pour former une couche permanente sur ces dernières
B32B 13/10 - Produits stratifiés composés essentiellement d'une substance à prise hydraulique, p. ex. du béton, du plâtre, du ciment, ou d'autres matériaux entrant dans la construction comprenant une telle substance comme seul composant ou composant principal d'une couche adjacente à une autre couche d'une substance spécifique de boisProduits stratifiés composés essentiellement d'une substance à prise hydraulique, p. ex. du béton, du plâtre, du ciment, ou d'autres matériaux entrant dans la construction comprenant une telle substance comme seul composant ou composant principal d'une couche adjacente à une autre couche d'une substance spécifique de particules de bois
C04B 40/00 - Procédés, en général, pour influencer ou modifier les propriétés des compositions pour mortiers, béton ou pierre artificielle, p. ex. leur aptitude à prendre ou à durcir
E04B 1/26 - Structures comportant des éléments porteurs allongés, p. ex. colonnes, poutres, ossatures les pièces porteuses étant en bois
B27N 7/00 - Post-traitement, p. ex. réduction du gonflement ou du retrait, surfaçageProtection des bords contre l'humidité
28.
BINDER-FREE BULK SILICA AEROGEL MATERIAL, METHOD OF PRODUCING THE SAME AND USES THEREOF
EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
Inventeur(s)
Zhao, Shanyu
Carl, Fionn
Wernery, Jannis
Malfait, Wim
Koebel, Matthias
Kufel, Lukasz
Ben-Ishai, Avner
Abrégé
A method of preparing a binder-free bulk silica aerogel material, comprising the steps of: (i) providing an amount of granular silica aerogel material, and (ii) carrying out a curing step wherein the granular silica aerogel material is contacted with a curing medium, thereby converting the granular silica aerogel material to the bulk silica aerogel material. According to the invention, the granular silica aerogel material is hydrophobic, and the curing medium is an aqueous curing medium which is either acidic with a pH < 4 or basic with a pH > 10. A resulting binder-free bulk silica aerogel material comprises silica aerogel granules which are interface-bonded and has the following properties: a thermal conductivity below 24 mW/(m·K), a compressive strength of at least 5 kPa, a 3-point flexural stress (σf), determined with a specimen having a longest dimension which is four times the specimen thickness, of at least 0.5 kPa.
EMPA, EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
Inventeur(s)
Herrmann, Inge
Cipolato, Oscar
Abrégé
The present invention relates to a composition comprising a temperature sensitive biocompatible solder and at least one type of nanoparticles, characterized in that a first type of nanoparticles is a fluorescent nanothermometer, wherein said fluorescent nanothermometer exhibits an excitation maximum and temperature dependent emission spectrum each in the range of between 650 and 1350 nm. The composition according to the present invention can be used for laser tissue soldering.
A61B 17/00 - Instruments, dispositifs ou procédés chirurgicaux
A61L 31/06 - Matériaux macromoléculaires obtenus autrement que par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone
A61N 5/06 - Thérapie par radiations utilisant un rayonnement lumineux
30.
USE OF AND METHOD FOR PREPARING POLYIMIDE AEROGELS
EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
IBIH ADVANCED MATERIAL CO., LTD. (Chine)
Inventeur(s)
Wu, Tingting
Yip, Joshua
Zhao, Shanyu
Malfait, Wim
Li, Quin
Wang, Yunhong
Abrégé
The present invention pertains to the use of a polyimide aerogel, wherein the polyimide aerogel comprises polyimide spheres having a diameter of 250 nm to 20 µm, as an insulating, sorption or filter material, as well as to methods for the preparation of the same.
EMPA Eidgenössische Materialprüfungs- und Forschungsanstalt (Suisse)
Inventeur(s)
Nirmalraj, Peter
Abrégé
An aspect of the invention relates to a method for detecting amyloid aggregates (40) in blood. The method comprises providing a blood sample (20) comprising one or more red blood cells and performing an analysis of a surface layer (22) of the blood sample (20) by an atomic force microscope (10) to detect amyloid aggregates on the surface of the red blood cells and to image detected amyloid aggregates. Further aspects relate to a corresponding atomic force microscope and a corresponding computer program product.
The invention relates to a method for producing a laminate, characterized in that (i) a wooden element is provided, (ii) the wooden element is coated on the top side with a an adhesive that is applied in liquid form and comprises at least one polymer that is liquid at room temperature and contains silane groups, at least one liquid epoxy resin and at least one amine hardener, (iii) the applied adhesive is covered with a layer of a liquid cementitious composition while still wet, and (iv) the liquid cementitious composition and the adhesive each cure. The method enables the durable joining of wooden elements and cementitious elements in an easy-to-implement, wet-on-wet method. The laminates obtained from the method are comparatively light, stable and robust and are especially suitable as sustainable components in above-ground construction, particularly as a ceiling element.
E04C 3/29 - PoutrellesSolives, fermes ou structures analogues à des fermes, p. ex. préfabriquéesLinteauxTraverses formés d'éléments de différents matériaux
B05D 7/06 - Procédés, autres que le flocage, spécialement adaptés pour appliquer des liquides ou d'autres matériaux fluides, à des surfaces particulières, ou pour appliquer des liquides ou d'autres matériaux fluides particuliers à du bois
B28B 19/00 - Machines ou méthodes pour appliquer le matériau sur des surfaces pour former une couche permanente sur ces dernières
E04C 3/12 - PoutrellesSolives, fermes ou structures analogues à des fermes, p. ex. préfabriquéesLinteauxTraverses en bois, p. ex. avec armatures ou tirants
B05D 7/00 - Procédés, autres que le flocage, spécialement adaptés pour appliquer des liquides ou d'autres matériaux fluides, à des surfaces particulières, ou pour appliquer des liquides ou d'autres matériaux fluides particuliers
EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
Inventeur(s)
Ganobjak, Michal
Wernery, Jannis
Koebel, Matthias
Abrégé
A loadbearing translucent insulating glass brick (1) is described, having two short sides (12), two long sides (13) an upper side (14) and a lower side (15), said glass brick (1) comprising at least two glass panes (2, 2') forming the long sides (13) of the glass brick (1), with at least one spacer fixed at inner sides for spacing two adjacent glass panes (2, 2') towards each other and creating at least one cavity (10) in the interspace between the glass panes (2, 2'), in which the at least one spacer is fixed, wherein the cavity (10) is filled with a translucent insulating aerogel material (4) between the glass panes, should show improved thermal isolation and stabilisation. This is reached in that, the at least one spacer is an inhibiting spacer (6) from a transparent or translucent material, comprising a wall in a zig-zag shape or with a shape, comprising at least one base rod or plate or a multiplicity of rods and plates, which can point in different directions from a base length axis, which is placed in the internal space of the cavity (10) between the glass panes reducing thermal transfer, and that the periphery of the glass brick (1) is sealed with a sealing layer (11).
EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
ECOLE POLYTECHNIQUE FÉDÉRALE DE LAUSANNE (EPFL) (Suisse)
Inventeur(s)
Barana, Davide
Fortunato, Giuseppino
Guex, Anne Géraldine
Rossi, René
Pelet, Thierry
Schönenberger, Klaus
Sidjanski, Sacha
Baatard, Diane
Abrégé
A composite multi-layer textile, comprising at least one nanofibre layer with nanofibres with diameters below 100 nm and one support layer with microfibres with diameters below three microns, wherein the layers were produced by electrospinning. The multi-layer textile shows a general transmittance at #=550 nm greater than 60%, which shows improved properties concerning transparency, breathability and robustness. This is achieved in that the at least one nanofibre layer and the support layer are fused, forming solid domains in the multi-layer textile, at closed areas of a pattern used in the production process, wherein the solid domains are separated from each other or connected, showing defined shapes, with regular or irregular spatial distribution, while the fibre morphology of nanofibres of the nanofibre layer and microfibres of support layer is preserved on top of the open areas beside the solid domains, attaining a general transmittance greater than that given by the sum of the individual layers.
B32B 3/26 - Produits stratifiés comprenant une couche ayant des discontinuités ou des rugosités externes ou internes, ou une couche de forme non planeProduits stratifiés comprenant une couche ayant des particularités au niveau de sa forme caractérisés par une couche continue dont le périmètre de la section droite a une allure particulièreProduits stratifiés comprenant une couche ayant des discontinuités ou des rugosités externes ou internes, ou une couche de forme non planeProduits stratifiés comprenant une couche ayant des particularités au niveau de sa forme caractérisés par une couche comportant des cavités ou des vides internes
B32B 5/02 - Produits stratifiés caractérisés par l'hétérogénéité ou la structure physique d'une des couches caractérisés par les caractéristiques de structure d'une couche comprenant des fibres ou des filaments
B32B 7/05 - Liaison entre couches les couches n’étant pas liées sur toute la surface, p. ex. liaison discontinue ou par motifs particuliers
B32B 27/12 - Produits stratifiés composés essentiellement de résine synthétique adjacente à une couche fibreuse ou filamenteuse
B32B 5/26 - Produits stratifiés caractérisés par l'hétérogénéité ou la structure physique d'une des couches caractérisés par la présence de plusieurs couches qui comportent des fibres, filaments, grains ou poudre, ou qui sont sous forme de mousse ou essentiellement poreuses une des couches étant fibreuse ou filamenteuse un autre couche également étant fibreuse ou filamenteuse
D01D 5/00 - Formation des filaments, fils ou similaires
D04H 1/728 - Non-tissés formés uniquement ou principalement de fibres coupées ou autres fibres similaires relativement courtes caractérisés par la méthode de formation des voiles ou couches, p. ex. par la réorientation des fibres les fibres étant disposées au hasard par électrofilage
D04H 1/4382 - Fibres obtenues par étirage de film réticuléFibres compositesFibres mixtesFibres ultrafinesFibres pour cuir artificiel
D04H 1/558 - Non-tissés formés uniquement ou principalement de fibres coupées ou autres fibres similaires relativement courtes à partir de voiles ou couches composés de fibres ne possédant pas des propriétés cohésives réelles ou potentielles par soudage des fibres ensembles, p. ex. par fusion partielle ou dissolution en combinaison avec des traitements mécaniques ou physiques autres que le gaufrage
The present invention provides a method for producing a silica aerogel, the method enabling a silica aerogel having a high specific surface area and a high void content to be obtained at low cost. This method for producing a silica aerogel comprises instantly mixing a water glass solution with a strong acid to obtain an acidic silicic acid solution having a pH of 1-3, adding a hydrophobizing agent to the acidic silicic acid solution, stirring the mixture, adding an alkali thereto and conducing a gelation/maturation treatment in an environment having a pH of 5-10 to obtain a wet gel, causing the wet gel to undergo a hydrophobization reaction in the presence of a hydrophobization accelerator in an environment having a pH less than 3, allowing the liquid which has undergone the hydrophobization reaction to stand still, removing the aqueous phase containing a water-soluble salt from the resultant solution which has been separated into two phases, thereby separating the gel-containing oil phase, and drying the oil phase, thereby obtaining a silica aerogel.
C01B 33/027 - Préparation par décomposition ou réduction de composés de silicium gazeux ou vaporisés autres que la silice ou un matériau contenant de la silice
C01B 33/155 - Préparation d'hydro-organogels ou d'organogels
EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
Inventeur(s)
Schubert, Christian
Ligon, Samuel Clark
Hoffmann, Botho
Gaan, Sabyasachi
Drigo, Nikita
Nazir, Muhammad Rashid
Abrégé
The present invention relates to inherently flame-resistant, partially aromatic polyamides with the polyamide units AB/AC/AE/DB/DC/DE/F, characterised in that, besides the polyamide units AC, at least one further polyamide unit is selected from the group consisting of the polyamide units AB, AE, DB, DC, DE and F, the monomer units A, B, C, D, E and F being derived from the following molecules, which are present in amidically bonded form in the polyamide X: A: aliphatic diamines; B: aromatic phosphorus-free dicarboxylic acids; C: phosphorus-containing, aromatic dicarboxylic acids according to formula (1), (2) and/or (3); D: diamines with aromatic structural units; E: aliphatic dicarboxylic acids; F: aminocarboxylic acids, lactams. The invention also relates to flame-proof moulding compounds based on flame-retardant polyamides, and to moulded articles formed from the polyamides or polyamide moulding compounds according to the invention.
C08G 69/26 - Polyamides dérivés, soit des acides amino-carboxyliques, soit de polyamines et d'acides polycarboxyliques dérivés de polyamines et d'acides polycarboxyliques
C08G 69/42 - Polyamides contenant des atomes autres que le carbone, l'hydrogène, l'oxygène et l'azote
C08L 77/06 - Polyamides dérivés des polyamines et des acides polycarboxyliques
37.
MEDICAL DEVICE COMPRISING A WEARABLE TEXTILE SENSOR TO PROTECT AGAINST PRESSURE INJURIES
A medical device (1) for determining an oxygen saturation in a tissue of a subject, comprises: a sensor (2) comprising a flexible textile (10) comprising a plurality of first optical fibers (11) and a plurality of second optical fibers (12). It further comprises a first light generating unit (3) configured to generate and couple light of a first wavelength into the first ends (11a) of the first optical fibers (11) and to generate and couple light of a different second wavelength into the second ends (12a) of the first optical fibers (11). The respective first optical fiber (11) is configured to emit light via a light emitting section (21) to irradiate tissue of the subject, the light emitting section (21) being arranged between the first end (11a) and the second end (11b) of the respective first optical fiber (11), The respective second optical fiber (12) comprises a light receiving section (22) configured to receive light coming from the tissue, the light receiving section (22) being arranged between the first end (12a) and the second end (12b) of the respective second optical fiber (12). The sensor (2) further comprises a first light detector unit (4) to detect light received by the light receiving section (22), and an analyzing unit (5) configured to determine an oxygen saturation value of the tissue using intensities of light detected by the first light detector unit (4).
A61B 5/1455 - Mesure des caractéristiques du sang in vivo, p. ex. de la concentration des gaz dans le sang ou de la valeur du pH du sang en utilisant des capteurs optiques, p. ex. des oxymètres à photométrie spectrale
A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
G01L 11/02 - Mesure de la pression permanente, ou quasi permanente d'un fluide ou d'un matériau solide fluent par des moyens non prévus dans les groupes ou par des moyens optiques
F21V 8/00 - Utilisation de guides de lumière, p. ex. dispositifs à fibres optiques, dans les dispositifs ou systèmes d'éclairage
38.
TWO-PHASE COMPOSITE COMPRISING AN INORGANIC MESOPOROUS MATERIAL EMBEDDED IN A POLYIMIDE AEROGEL MATRIX AND METHODS FOR PRODUCING SAME
EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
Inventeur(s)
Kantor, Zuzanna
Zhao, Shanyu
Malfait, Wim
Koebel, Matthias
Abrégé
The present invention pertains to a two-phase composite comprising an inorganic mesoporous material embedded in a polyimide aerogel matrix, wherein particles of the inorganic mesoporous material in the composite have a diameter larger than or equal to 1 µm and the two-phase composite has a thermal conductivity of less than about 25 mW/(m*K), as well as to methods for the manufacture thereof and uses of the two-phase composite.
EMPA EIDGENOSSISCHE MATERIALPRUFUNGS- UND FORSCHUNGSANSTALT (Suisse)
LIDL SCHWEIZ AG (Suisse)
Inventeur(s)
Zimmermann, Tanja
De France, Kevin
Siqueira, Gilberto
Nystrom, Gustav
Amoroso, Luana
Abrégé
The present invention relates to a method for coating a perishable food product such as fresh fruits and vegetables; the coating comprises applying a bleached CNF composition to said food product. The invention further provides for coating compositions suitable for such methods and to coated food product comprising such coating. Due to the coating compositions employed in the inventive method, a sustainable packaging for a food product is provided.
EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
LIDL SCHWEIZ AG (Suisse)
Inventeur(s)
Zimmermann, Tanja
De France, Kevin
Siqueira, Gilberto
Nyström, Gustav
Amoroso, Luana
Abrégé
The present invention relates to a method for coating a perishable food product such as fresh fruits and vegetables; the coating comprises applying a bleached CNF composition to said food product. The invention further provides for coating compositions suitable for such methods and to coated food product comprising such coating. Due to the coating compositions employed in the inventive method, a sustainable packaging for a food product is provided.
EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
ETH ZURICH (Suisse)
Inventeur(s)
Matter, Tino
Herrmann, Inge
Abrégé
The present invention relates to suspensions comprising oxidic nanoparticles as dispersed phase and an aqueous solution comprising citric acid as diluent. Advantageously, the oxidic nanoparticles comprise bioglass and ceria. The invention further provides for topical dosage forms comprising such oxidic nanoparticles and to the use thereof. The dosage forms were found to be useful in the treatment of wounds and post-operative lesions; particularly for the prevention of seroma, the prevention of infections and/or the prevention of inflammation.
A61L 26/00 - Aspects chimiques des bandages liquides ou utilisation de matériaux pour les bandages liquides
A61P 17/02 - Médicaments pour le traitement des troubles dermatologiques pour traiter les blessures, les ulcères, les brûlures, les cicatrices, les cheloïdes, ou similaires
EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
ETH ZURICH (Suisse)
Inventeur(s)
Anthis, Alexandre
Herrmann, Inge
Suter, Benjamin
Abrégé
The present invention relates a patch for detecting by at least one non-invasive imaging technique a leak of a biological fluid at an application site, wherein said patch comprises either a layer comprising one or more first portions containing a first gel, one or more second portions containing a second gel and at least one sensing component embedded within the first gel and/or the second gel, or a layer containing a hydrogel and at least one sensing component, such as aerogel particles, and xerogel particles, embedded within said hydrogel.
A61L 24/00 - Adhésifs ou ciments chirurgicauxAdhésifs pour dispositifs de colostomie
A61L 24/06 - Adhésifs ou ciments chirurgicauxAdhésifs pour dispositifs de colostomie contenant des matériaux macromoléculaires obtenus par des réactions faisant intervenir uniquement des liaisons carbone-carbone non saturées
43.
KIT COMPRISING ADHESIVE HYDROGEL AND IMPREGNATING FLUID
EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
ETH ZURICH (Suisse)
Inventeur(s)
Anthis, Alexandre
Herrmann, Inge
Matter, Tino
Abrégé
The present invention relates to a kit of parts comprising two components, the first component being a patch comprising a non-degradable synthetic hydrogel and the second component being an impregnating fluid, which, upon in-situ polymerisation, anchors the patch on a tissue. The patch may comprise additional layers comprising sensing components or therapeutic components. In addition, the invention notably relates to the use of said kit of parts and the use of an impregnating fluid in surgery, in particular as suture or staple supports, e.g. suture or staple supports in the abdominal region such as intestinal anastomosis sites, or for sealing of artificial stoma.
A61L 24/00 - Adhésifs ou ciments chirurgicauxAdhésifs pour dispositifs de colostomie
A61L 24/06 - Adhésifs ou ciments chirurgicauxAdhésifs pour dispositifs de colostomie contenant des matériaux macromoléculaires obtenus par des réactions faisant intervenir uniquement des liaisons carbone-carbone non saturées
44.
SHEAR-THINNING GEL COMPOSITIONS FOR PREPARING ELECTRONICALLY CONDUCTIVE INKS
EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
Inventeur(s)
Aeby, Xavier
Nyström, Gustav
Poulin, Alexandre
Siqueira, Gilberto
Abrégé
The present invention is directed to a shear-thinning gel composition for producing a dry, water-stable and electronically conductive ink, comprising (a) dispersed electrically conductive graphite flake particles and (b) at least one further type of electronically conductive particles selected from carbon black and conductive pyrolyzed plant carbon components in a specific ratio of (a) to (b) as well as (c) a dissolved binder based on or consisting of shellac dissolved in a suitable solvent, where-in the ratio of the total of the electrically conductive particles (a)+(b) and the dissolved binder (c) and the weight proportion of the electrically conductive particles in the composition are specified.The invention further relates to the dried and electronically conductive inks, methods for producing the gel compositions and the use of these gel compositions for preparing, optionally ink-jet printing or robocasting 2D or 3D print products, in particular for preparing electronic devices, such as, for example, flexible electronic devices, biosensors, logic and memory devices, supercapacitors, batteries, flexible batteries, capacitive sensors, RFID tags, and smart packaging.
C01B 6/21 - Préparation de borohydrures des métaux alcalins, des métaux alcalino-terreux, du magnésium ou du bérylliumLeurs complexes d'addition, p. ex. LiBH4.2N2H4, NaB2H7
EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
Inventeur(s)
Nirmalraj, Peter
Abrégé
An aspect of the invention relates to a method for detecting amyloid aggregates (40) in blood. The method comprises providing a blood sample (20) com- prising one or more red blood cells and performing an analysis of a surface layer (22) of the blood sample (20) by an atomic force microscope (10) to detect amyloid ag- gregates on the surface of the red blood cells and to im- age detected amyloid aggregates. Further aspects relate to a corresponding atomic force microscope and a corresponding computer pro- gram product.
EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
ETH ZURICH (Suisse)
Inventeur(s)
Qiu, Guangyu
Wang, Jing
Abrégé
The present invention is directed to a dual-functional plasmonic detector comprising (a) a photothermal unit configured to generate a monochromatic light beam; (b) a plasmonic sensing unit configured to introduce a localized surface plasmon resonance effect and to transduce a target sample by means of a polychromatic radiation beam; and (c) a detection unit configured to detect plasmonic characteristics by recording and processing the radiation beam altered by the plasmonic sensing unit. The invention also relates to the use of the dual-functional plasmonic detector of the invention for detecting, quantifying and/or characterizing a target sample, in particular for detecting, quantifying and/or characterizing a nucleic acid or a virus, e.g. a coronavirus such as SARS-CoV or SARS-CoV-2.
C12Q 1/70 - Procédés de mesure ou de test faisant intervenir des enzymes, des acides nucléiques ou des micro-organismesCompositions à cet effetProcédés pour préparer ces compositions faisant intervenir des virus ou des bactériophages
G01N 33/569 - Tests immunologiquesTests faisant intervenir la formation de liaisons biospécifiquesMatériaux à cet effet pour micro-organismes, p. ex. protozoaires, bactéries, virus
EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
Inventeur(s)
Koebel, Matthias
Stojanovic, Ana
Zhao, Shanyu
Olivier, Emery
Abrégé
The present invention pertains to a water glass-based method for preparing a silica aerogel, a silica aerogel precursor material and a silica aerogel blanket.
B01J 13/00 - Chimie des colloïdes, p. ex. production de substances colloïdales ou de leurs solutions, non prévue ailleursFabrication de microcapsules ou de microbilles
The invention relates to a composite profile with a foamed core made from a first plastic and an envelope enclosing the core made from a second plastic, which envelopes the core in an interlocking manner. According to the invention, the first and the second plastic are compatible with one another, that is to say can form an integrally bonded connection with one another.
EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
ECOLE POLYTECHNIQUE FÉDÉRALE DE LAUSANNE (EPFL) (Suisse)
Inventeur(s)
Barana, Davide
Fortunato, Giuseppino
Guex, Anne Géraldine
Rossi, René
Pelet, Thierry
Schönenberger, Klaus
Sidjanski, Sacha
Baatard, Diane
Abrégé
A composite multi-layer textile (1), comprising at least one nanofibre layer (11) with nanofibres with diameters below 100nm and one support layer (12) with microfibres with diameters below three microns, wherein the layers (11, 12) were produced by electrospinning and the multi-layer textile (1) shows a general transmittance (T%) at λ = 550 nm greater than 60%, is disclosed, which shows improved properties concerning transparency, breathability and robustness. This is achieved in that the at least one nanofibre layer (11) and the support layer (12) are fused, forming solid domains (Ds) in the multi-layer textile (1), at closed areas of a pattern used in the production process, wherein the solid domains (Ds) are separated from each other or connected, showing defined shapes, with regular or irregular spatial distribution, while the fibre morphology of nanofibres of the nanofibre layer (11) and microfibres of support layer (12) is preserved on top of the open areas beside the solid domains (Ds), attaining a general transmittance greater than that given by the sum of the individual layers (11, 12).
D01D 5/00 - Formation des filaments, fils ou similaires
B32B 3/26 - Produits stratifiés comprenant une couche ayant des discontinuités ou des rugosités externes ou internes, ou une couche de forme non planeProduits stratifiés comprenant une couche ayant des particularités au niveau de sa forme caractérisés par une couche continue dont le périmètre de la section droite a une allure particulièreProduits stratifiés comprenant une couche ayant des discontinuités ou des rugosités externes ou internes, ou une couche de forme non planeProduits stratifiés comprenant une couche ayant des particularités au niveau de sa forme caractérisés par une couche comportant des cavités ou des vides internes
B01D 39/16 - Autres substances filtrantes autoportantes en substance organique, p. ex. fibres synthétiques
A62B 23/02 - Filtres en vue de la protection des voies respiratoires pour appareils respiratoires
D04H 1/728 - Non-tissés formés uniquement ou principalement de fibres coupées ou autres fibres similaires relativement courtes caractérisés par la méthode de formation des voiles ou couches, p. ex. par la réorientation des fibres les fibres étant disposées au hasard par électrofilage
D04H 1/4382 - Fibres obtenues par étirage de film réticuléFibres compositesFibres mixtesFibres ultrafinesFibres pour cuir artificiel
B32B 5/26 - Produits stratifiés caractérisés par l'hétérogénéité ou la structure physique d'une des couches caractérisés par la présence de plusieurs couches qui comportent des fibres, filaments, grains ou poudre, ou qui sont sous forme de mousse ou essentiellement poreuses une des couches étant fibreuse ou filamenteuse un autre couche également étant fibreuse ou filamenteuse
B32B 27/12 - Produits stratifiés composés essentiellement de résine synthétique adjacente à une couche fibreuse ou filamenteuse
51.
TRANSPARENT COMPOSITE NANO-FIBRE BASED MULTI-LAYER TEXTILE
EMPA EIDGENOSSISCHE MATERIALPRUFUNGS- UND FORSCHUNGSANSTALT (Suisse)
ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL) (Suisse)
Inventeur(s)
Barana, Davide
Fortunato, Giuseppino
Guex, Anne Geraldine
Rossi, Rene
Pelet, Thierry
Schonenberger, Klaus
Sidjanski, Sacha
Baatard, Diane
Abrégé
A composite multi-layer textile (1), comprising at least one nanofibre layer (11) with nanofibres with diameters below 100nm and one support layer (12) with microfibres with diameters below three microns, wherein the layers (11, 12) were produced by electrospinning and the multi-layer textile (1) shows a general transmittance (T%) at ? = 550 nm greater than 60%, is disclosed, which shows improved properties concerning transparency, breathability and robustness. This is achieved in that the at least one nanofibre layer (11) and the support layer (12) are fused, forming solid domains (Ds) in the multi-layer textile (1), at closed areas of a pattern used in the production process, wherein the solid domains (Ds) are separated from each other or connected, showing defined shapes, with regular or irregular spatial distribution, while the fibre morphology of nanofibres of the nanofibre layer (11) and microfibres of support layer (12) is preserved on top of the open areas beside the solid domains (Ds), attaining a general transmittance greater than that given by the sum of the individual layers (11, 12).
A62B 23/02 - Filtres en vue de la protection des voies respiratoires pour appareils respiratoires
D04H 1/4382 - Fibres obtenues par étirage de film réticuléFibres compositesFibres mixtesFibres ultrafinesFibres pour cuir artificiel
D04H 1/728 - Non-tissés formés uniquement ou principalement de fibres coupées ou autres fibres similaires relativement courtes caractérisés par la méthode de formation des voiles ou couches, p. ex. par la réorientation des fibres les fibres étant disposées au hasard par électrofilage
B01D 39/16 - Autres substances filtrantes autoportantes en substance organique, p. ex. fibres synthétiques
B32B 3/26 - Produits stratifiés comprenant une couche ayant des discontinuités ou des rugosités externes ou internes, ou une couche de forme non planeProduits stratifiés comprenant une couche ayant des particularités au niveau de sa forme caractérisés par une couche continue dont le périmètre de la section droite a une allure particulièreProduits stratifiés comprenant une couche ayant des discontinuités ou des rugosités externes ou internes, ou une couche de forme non planeProduits stratifiés comprenant une couche ayant des particularités au niveau de sa forme caractérisés par une couche comportant des cavités ou des vides internes
B32B 5/26 - Produits stratifiés caractérisés par l'hétérogénéité ou la structure physique d'une des couches caractérisés par la présence de plusieurs couches qui comportent des fibres, filaments, grains ou poudre, ou qui sont sous forme de mousse ou essentiellement poreuses une des couches étant fibreuse ou filamenteuse un autre couche également étant fibreuse ou filamenteuse
B32B 27/12 - Produits stratifiés composés essentiellement de résine synthétique adjacente à une couche fibreuse ou filamenteuse
D01D 5/00 - Formation des filaments, fils ou similaires
EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
Inventeur(s)
Fu, Chengyin
Battaglia, Corsin
Abrégé
The invention pertains to a composition for coating a lithium metal anode of a lithium metal battery comprising a mixture of nanoparticles of at least one electrolyte-insoluble lithium salt and at least one lithium ion-coordinating polymer, as well as to corresponding uses and methods. The present invention further encompasses a lithium metal anode coated with the inventive composition as well as a battery comprising the coated lithium metal anode.
EMPA EIDGENOSSISCHE MATERIALPRUFUNGS- UND FORSCHUNGSANSTALT (Suisse)
SOLARONIX S.A. (Suisse)
Inventeur(s)
Verma, Anand
Martineau, David
Nuesch, Frank
Heier, Jacob
Meyer, Tobias
Abrégé
The present invention concerns a method for producing layers of an electronic device and to a method for producing electronic devices. The method comprises co-firing a plurality of different overlapping or superposed films comprising metal oxides, precursors of the aforementioned and/or carbon, in addition to organic components. The method renders the manufacturing process of such electronic devices more efficient.
H10K 30/30 - Dispositifs organiques sensibles au rayonnement infrarouge, à la lumière, au rayonnement électromagnétique de plus courte longueur d'onde ou au rayonnement corpusculaire comprenant des hétérojonctions de masse, p. ex. des réseaux interpénétrés de domaines de matériaux donneurs et accepteurs
H10K 71/40 - Traitement thermique, p. ex. recuit en présence d'une vapeur de solvant
H10K 102/00 - Détails de structure relatifs aux dispositifs organiques couverts par la présente sous-classe
EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
Inventeur(s)
Luisier, Nicolas
Fortunato, Giuseppino
Toncelli, Claudio
Abrégé
The present invention relates to microcapsules comprising a Poly-(Urethane-Urea) wall encapsulating an active ingredient, to compositions comprising such microcapsules and to textiles functionalized with such microcapsules. The inventive microcapsules are obtainable by a process combining ultrasonication, interfacial polymerisation and curing steps.
EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
Inventeur(s)
Abdolhosseinzadeh, Sina
Heier, Jakob
Nüesch, Frank
Abrégé
The present invention is directed to a method for preparing a particle-stabilized emulsion (PSE) and a stable viscous and homogenous single phase emulsion (2DM-GEL) of two-dimensional materials (2DM), and a method for preparing these, optionally without and a stable viscous and homogenous single phase dispersion (2DM-GEL) of 2DM two-dimensional materials (2DM), wherein the PSE, 2DM-GEL products and their methods for preparation do not require a compound selected from the group consisting of functionalized 2DM, surfactants, and binders that interacts with the 2DM to the extent that the compound is necessary for PSE or 2DM-GEL formation and/or stability. The present invention also relates to the use of PSE and 2DM-GEL for the production of electronic products. Depending on the 2DM the PSE and 2DM-GEL have particular utility as conductors, semiconductors or insulators in electronic devices.
H01B 1/24 - Matériau conducteur dispersé dans un matériau organique non conducteur le matériau conducteur comportant des compositions à base de carbone-silicium, du carbone ou du silicium
The present invention concerns a method for deposition layers of an electronic device by slot-die deposition. Preferably, the method comprises slot-die deposition of formulation for providing compact inorganic layers, mesoporous inorganic layers, a carbon layer and a layer comprising organic-inorganic perovskite. In a preferred embodiment, the layers of a monolithic perovskite solar cell are entirely deposited by slot-die deposition. The method renders the manufacturing process of such electronic devices more efficient.
H10K 71/15 - Dépôt d'une matière active organique en utilisant un dépôt liquide, p. ex. revêtement par centrifugation caractérisé par le solvant utilisé
H10K 30/00 - Dispositifs organiques sensibles au rayonnement infrarouge, à la lumière, au rayonnement électromagnétique de plus courte longueur d'onde ou au rayonnement corpusculaire
H10K 30/35 - Dispositifs organiques sensibles au rayonnement infrarouge, à la lumière, au rayonnement électromagnétique de plus courte longueur d'onde ou au rayonnement corpusculaire comprenant des hétérojonctions de masse, p. ex. des réseaux interpénétrés de domaines de matériaux donneurs et accepteurs comprenant des nanostructures inorganiques, p. ex. des nanoparticules de CdSe
H10K 71/13 - Dépôt d'une matière active organique en utilisant un dépôt liquide, p. ex. revêtement par centrifugation en utilisant des techniques d'impression, p. ex. l’impression par jet d'encre ou la sérigraphie
57.
HYDRAULIC DRIVE FOR ACCELERATING AND BRAKING COMPONENTS THAT ARE TO BE MOVED DYNAMICALLY
EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
WOLFGANG SCHNEIDER INGENIEURBÜRO (Suisse)
Inventeur(s)
Soltic, Patrik
Omanovic, Andyn
Schneider, Wolfgang
Abrégé
In order to provide a more reliable configuration for a hydraulic drive for accelerating and braking, in particular, a gas exchange valve (20) of internal combustion engines or other piston engines, in particular if the occurring maximum travel of the moving mass can deviate considerably from an expected setpoint position, the invention proposes that the drive piston (23) has at least one control edge (31) which corresponds with an inflow opening (33) and which, when a defined travel hab is attained, prevents the inflow of drive pressure p1 into the drive chamber (27) and/or prevents the low-loss outflow of pressure medium from the braking chamber (29) to the basic pressure level (40), wherein the remaining hydraulic drive force vanishes, becomes negligible or changes its sign when said travel hab is attained.
EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
Inventeur(s)
Koebel, Matthias
Malfait, Wim
Nemec, Marek
Hauser, Stefanie
Abrégé
The present invention pertains to a polymeric liquid polysiloxane material comprising non- organofunctional Q-type siloxane moieties and mono-organofunctional T-type siloxane moieties, as well as optionally tri-organofunctional M-type siloxane moieties and/or di-organofunctional D-type siloxane moieties characterized in that the polysiloxane material has a specified degree of polymerization, and comprises a limited low amount of four-membered Q2-type and/or Q3-type siloxane ring species relative to the total Q-type siloxane species. The present invention further pertains to methods for producing the polymeric liquid polysiloxane material as well as associated uses of the material.
The present invention relates to novel coatings and its uses, as well as processes of making such coatings. The coatings are characterized by their chemical composition and architecture; they are antimicrobial, tissue regenerative and tissue bonding, making them useful as a coating of an implant. Manufacturing processes for such coating combines flame spray pyrolysis and direct coating of a substrate; the process uses inexpensive starting materials and is scalable.
EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
Inventeur(s)
Koebel, Matthias
Nemec, Marek
Hauser, Stefanie
Abrégé
The present invention pertains to a branched polymeric liquid polysiloxane material comprising non-organofunctional Q-type siloxane moieties and mono-organofunctional T-type siloxane moieties, as well as optionally tri-organofunctional M-type siloxane moieties and/or di-organofunctional D-type siloxane moieties characterized in that the polysiloxane material has a specified degree of polymerization, comprises a significant amount of four-membered Q2-type and/or Q3-type siloxane ring species relative to the total Q-type siloxane species, and is optionally functionalized at specific moieties. The present invention further pertains to methods for producing the polymeric liquid polysiloxane material as well as associated uses of the material.
C08G 77/18 - Polysiloxanes contenant du silicium lié à des groupes contenant de l'oxygène à des groupes alcoxyle ou aryloxyle
C08L 101/00 - Compositions contenant des composés macromoléculaires non spécifiés
C08G 77/30 - Polysiloxanes contenant du silicium lié à des groupes organiques contenant des atomes autres que le carbone, l'hydrogène et l'oxygène groupes contenant du phosphore
EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
Inventeur(s)
Koebel, Matthias
Malfait, Wim
Nemec, Marek
Hauser, Stefanie
Abrégé
The present invention pertains to a functionalized polymeric liquid polysiloxane material comprising non-organofunctional Q-type siloxane moieties and mono-organofunctional T-type siloxane moieties, as well as optionally tri-organofunctional M-type siloxane moieties and/or di-organofunctional D-type siloxane moieties characterized in that the polysiloxane material has a specified degree of polymerization, comprises a limited low amount of four-membered Q2-type and/or Q3-type siloxane ring species relative to the total Q-type siloxane species, and is functionalized at specific moieties. The present invention further pertains to methods for producing the polymeric liquid polysiloxane material as well as associated uses of the material.
C08G 77/18 - Polysiloxanes contenant du silicium lié à des groupes contenant de l'oxygène à des groupes alcoxyle ou aryloxyle
C08L 101/00 - Compositions contenant des composés macromoléculaires non spécifiés
C08G 77/30 - Polysiloxanes contenant du silicium lié à des groupes organiques contenant des atomes autres que le carbone, l'hydrogène et l'oxygène groupes contenant du phosphore
EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
Inventeur(s)
Koebel, Matthias
Stojanovic, Ana
Huber, Lukas
Mcmannis, Gabriel
Abrégé
A new class of liquid polysiloxane materials obtainable from cost-effective commodity precursors allow tailoring a plurality of (multi)-functional properties. The materials are classified in terms of their chemical identity, which comprises Q-type non-organofunctional, T-type monoorganofunctional and optional D-type diorganofunctional moieties. The T-type organofunctional species within a polymeric MBB can be present in various preferred combinations defined by spatial, stereochemical and compositional factors. The corresponding method of production for the liquid polymeric polysiloxanes involves a scalable, non-hydrolytic acetic anhydride method either in a simple one-step format to create statistically distributed "core-only" hyperbranched poly-alkoxysiloxanes or as a two- or multistep process to create "core-shell" materials.
EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
Inventeur(s)
Torres Sevilla, Galo
Romanyuk, Yaroslav
Tiwari, Ayodhya Nath
Loeckinger, Johannes
Perrenoud, Julian Christoph
Abrégé
A method (4000) for forming a thin-film photovoltaic device (100) comprising a cell stack (2R) comprising a chemically-reduced surface (11R), the cell stack (2R) comprising a semiconductive absorber layer (130) sandwiched between a back-contact layer (120) and a window layer (155), comprising: providing a thin-film photovoltaic device (100) comprising one or more cell stacks (2) comprising an absorber layer (130) sandwiched between a back-contact layer (120) and a window layer (155), wherein one or more side faces (11) of the absorber layer (130) is bare; and subjecting the one or more side faces (11) to a chemical reduction step (4100); wherein the chemical reduction step (4100) causes the one or more side faces (11) to be chemically reduced into one or more reduced side faces (11R). A thin-film photovoltaic device (100) wherein one or more side faces of the absorber layer (130) is a chemically-reduced side face (11R).
H01L 31/032 - Matériaux inorganiques comprenant, à part les matériaux de dopage ou autres impuretés, uniquement des composés non couverts par les groupes
H01L 21/02 - Fabrication ou traitement des dispositifs à semi-conducteurs ou de leurs parties constitutives
H01L 31/0749 - Dispositifs à semi-conducteurs sensibles aux rayons infrarouges, à la lumière, au rayonnement électromagnétique d'ondes plus courtes, ou au rayonnement corpusculaire, et spécialement adaptés, soit comme convertisseurs de l'énergie dudit rayonnement e; Procédés ou appareils spécialement adaptés à la fabrication ou au traitement de ces dispositifs ou de leurs parties constitutives; Leurs détails adaptés comme dispositifs de conversion photovoltaïque [PV] caractérisés par au moins une barrière de potentiel ou une barrière de surface les barrières de potentiel étant uniquement du type PN à hétérojonction incluant un composé AIBIIICVI, p.ex. cellules solaires à hétérojonctions CdS/CuInSe2 [CIS]
H01L 31/18 - Procédés ou appareils spécialement adaptés à la fabrication ou au traitement de ces dispositifs ou de leurs parties constitutives
H01L 31/0296 - Matériaux inorganiques comprenant, à part les matériaux de dopage ou autres impuretés, uniquement des composés AIIBVI, p.ex. CdS, ZnS, HgCdTe
H01L 31/046 - Modules PV composés d'une pluralité de cellules solaires en couches minces déposées sur un même substrat
EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
Inventeur(s)
Zhao, Shanyu
De Freitas Siqueira, Gilberto
Malfait, Wim
Koebel, Matthias
Ubert, Christopher
Norris, David
Abrégé
An ink composition for additive manufacture of silica aerogel objects essentially consists of a gellable silica sol containing an admixture of 30 to 70 vol.-% of a mesoporous silica powder in a base solvent. The mesoporous silica powder has a particle size range of 0.001 to 1 mm and a tap density of 30 to 200 kg/m3 and comprises at least 10% by weight of silica aerogel powder. The composition has a yield stress in the range of 30 to 3000 Pa and a viscosity of 5 to 150 Pa·s at a shear rate of 50s-1. Furthermore, the composition has shear thinning properties defined as a reduction in viscosity by a factor between 10 and 103 for an increase in shear rate by a factor of 104 to 105. A method of additive manufacturing of a three-dimensional silica aerogel object by direct ink writing comprises providing such ink composition, forcing the same through a convergent nozzle, thereby forming a jet of the ink composition which is directed in such manner as to form a three-dimensional object by additive manufacturing. After initiating and carrying out gelation of the gellable silica sol constituting said object, a drying step yields the desired three-dimensional silica aerogel object.
C09D 11/36 - Encres pour l'impression à jet d'encre à base de solvants non aqueux
C09D 11/38 - Encres pour l'impression à jet d'encre caractérisées par des additifs non macromoléculaires autres que les solvants, les pigments ou les colorants
65.
SURFACE TREATMENT OF A SOLID ELECTROLYTE TO LOWER THE INTERFACIAL RESISTANCE BETWEEN THE SOLID ELECTROLYTE AND AN ELECTRODE
Disclosed are electrochemical devices, such as sodium ion conducting solid state electrolytes, sodium battery electrodes, and solid-state sodium metal batteries including these electrodes and solid state electrolytes. One example method for preparing a sodium/sodium-β"-alumina interface with low interfacial resistance and capable of achieving high current density in an electrochemical cell includes the steps of: (a) providing a precursor electrolyte having a resistive surface region, wherein the precursor electrolyte comprises sodium-β"-alumina; (b) removing at least a portion of the resistive surface region; (c) heating the precursor electrolyte thereby forming a solid state electrolyte, and (d) placing a side of the solid state electrolyte in contact with a sodium anode.
EMPA Eidgenössische Materialprüfungs- und Forschungsanstalt (Suisse)
Inventeur(s)
Wasmer, Kilian
Shevchik, Sergey
Vakili Farahani, Farzad
Violakis, Georgios
Vaucher, Sébastien
Abrégé
Use of a sensor read out system with at least one fiber optical sensor, which is connected via at least one signal line to a processing unit as part of an additive manufacturing setup, for in situ and real time quality control of a running additive manufacturing process. Acoustic emission is measured via the at least one fiber optical sensor in form of fibers with Bragg grating, fibre interferometer or Fabry-Perot structure, followed by a signal transfer and an analysis of the measured signals in the processing unit, estimation of the sintering or melting process quality due to correlation between sintering or melting quality and measured acoustic emission signals and subsequent adaption of ion and electron beams, microwave or laser sintering or melting parameters of a ion and electron beams, microwave or laser electronics of the additive manufacturing setup in real times via a feedback loop as a result of the measured acoustic emission signals after interpretation with an algorithmic framework in the processing unit.
B29C 64/393 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
B22F 3/105 - Frittage seul en utilisant un courant électrique, un rayonnement laser ou un plasma
B29C 64/153 - Procédés de fabrication additive n’utilisant que des matériaux solides utilisant des couches de poudre avec jonction sélective, p. ex. par frittage ou fusion laser sélectif
G01D 5/353 - Moyens mécaniques pour le transfert de la grandeur de sortie d'un organe sensibleMoyens pour convertir la grandeur de sortie d'un organe sensible en une autre variable, lorsque la forme ou la nature de l'organe sensible n'imposent pas un moyen de conversion déterminéTransducteurs non spécialement adaptés à une variable particulière utilisant des moyens optiques, c.-à-d. utilisant de la lumière infrarouge, visible ou ultraviolette avec atténuation ou obturation complète ou partielle des rayons lumineux les rayons lumineux étant détectés par des cellules photo-électriques en modifiant les caractéristiques de transmission d'une fibre optique
G01N 29/12 - Analyse de solides en mesurant la fréquence ou la résonance des ondes acoustiques
G01N 29/14 - Recherche ou analyse des matériaux par l'emploi d'ondes ultrasonores, sonores ou infrasonoresVisualisation de l'intérieur d'objets par transmission d'ondes ultrasonores ou sonores à travers l'objet utilisant des techniques d'émission acoustique
0 than the first pressure reservoir (41). In a connecting line (48) between the first hydraulic pressure reservoir (41) and the working cylinder (22), a controllable opening (49) of a first valve (46) comprising at least one check valve (47) is arranged upstream or downstream in the flow path, which allows the pressure medium (30) to flow in the direction of working cylinder (22), but prevents a backflow towards the pressure reservoir (41).
In order to also initiate the closing movement or to enable the breaking of the gas exchange valve in a hydraulically simple and reliable manner, in a second connecting line (58) between the first pressure reservoir (41) and the working cylinder (22) there is arranged a controllable opening (59) of a second valve (56) comprising a check valve (57), which prevents a flow in the direction of the working cylinder (22), but allows a return flow in the direction of the pressure reservoir (41).
F01L 9/10 - Systèmes de distribution à soupapes, à commande non mécanique par des moyens à fluide, p. ex. hydrauliques
F01L 1/26 - Systèmes de distribution à soupapes, p. ex. à soupapes de levage caractérisés par plusieurs soupapes commandées simultanément par le même organe de transmissionSystèmes de distribution à soupapes, p. ex. à soupapes de levage particuliers aux "machines" ou machines motrices ayant plus de deux soupapes de levage par cylindre
F01L 1/46 - Parties constitutives, détails ou accessoires, non couverts par un des sous-groupes précédents
EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
Inventeur(s)
Gaan, Sabyasachi
Hufenus, Rudolf
Nazir, Rashid
Abrégé
The invention relates to novel bridged phosphorus compounds comprising an alkyl sulfone bridge or an alkyl phosphine oxide bridge with the general formula (I), wherein n is 2 or 3, and wherein formula (II) and wherein [P (O)―H is selected from various phosphorus containing compounds. Such bridged compounds are useful as flame retardant substances, particularly as an admixture into polymeric materials.
EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
Inventeur(s)
Wasmer, Kilian
Shevchik, Sergey
Quang Tri, Le
Abrégé
The disclosed invention comprises a method for automated control of material processing processes, wherein the method is controlled by a control unit (12) calculating correction output signals (u) and controlling an energy generator unit (1), an energy delivery unit (3), an energy delivery output measurement (4), at least one material- energy interaction measurement unit (7) for measurement of actual machining results (s), which are fed via a control unit input (13) and sub-units for generating correction output signals (u) in a close loop, which lead to desired machining results, wherein the correction output signals (u) are applied via a control unit output (14) to the energy generator unit (1) and the energy delivery unit (3) by an energy delivery control sub-unit (11) and/or a second energy delivery control sub-unit (15), and the computation of correction output signals (u) is executed by machine learning procedures.
G05B 13/02 - Systèmes de commande adaptatifs, c.-à-d. systèmes se réglant eux-mêmes automatiquement pour obtenir un rendement optimal suivant un critère prédéterminé électriques
70.
METHOD FOR PRODUCING DENSIFIED CELLULOSIC COMPOSITE MATERIAL
EMPA, EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
Inventeur(s)
Schnider, Thomas
Burgert, Ingo
Segmehl, Jana
Keplinger, Tobias
Abrégé
The present invention provides a method for obtaining densified material comprising the steps of
The present invention provides a method for obtaining densified material comprising the steps of
a. providing lignocellulosic material,
The present invention provides a method for obtaining densified material comprising the steps of
a. providing lignocellulosic material,
b. delignification of the lignocellulosic material providing a delignified material, wherein the delignification step is performed in such a way that the lignin of the lignocellulosic material is almost completely removed and wherein the structural integrity of the lignocellulosic material is maintained in the delignified material,
The present invention provides a method for obtaining densified material comprising the steps of
a. providing lignocellulosic material,
b. delignification of the lignocellulosic material providing a delignified material, wherein the delignification step is performed in such a way that the lignin of the lignocellulosic material is almost completely removed and wherein the structural integrity of the lignocellulosic material is maintained in the delignified material,
c. densification of the delignified material providing a densified material.
The present invention provides a method for obtaining densified material comprising the steps of
a. providing lignocellulosic material,
b. delignification of the lignocellulosic material providing a delignified material, wherein the delignification step is performed in such a way that the lignin of the lignocellulosic material is almost completely removed and wherein the structural integrity of the lignocellulosic material is maintained in the delignified material,
c. densification of the delignified material providing a densified material.
Furthermore, a densified material is provided. The fibers and fibrils are maintained in the structural directionality of the raw material and that the cellulosic material is whitish.
EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
Inventeur(s)
Truniger, Stefan
Antonini, Carlo
Geiger, Thomas
Nylén, Otto
Abrégé
The present invention relates to a method for the preparation of a nano- and/or microscale cellulose-based foam. The method comprises the steps of (i) providing a suspension (1) comprising nano- and/or microscale cellulose in an aqueous medium, (ii) simultaneously cooling and agitating the suspension (1) in a mechanical step (2a; 2b) to obtain an at least partially frozen suspension, (iii) freezing the at least partially frozen suspension (5) to obtain a substantially frozen suspension, (iv) treating the suspension under solvent- exchange (7; 8) and (v) removing the solvent (10; 13) to obtain a substantially dry foam (40A) comprising nano- and/or microscale cellulose.
C08J 9/28 - Mise en œuvre de substances macromoléculaires pour produire des matériaux ou objets poreux ou alvéolairesLeur post-traitement par élimination d'une phase liquide d'un objet ou d'une composition macromoléculaire, p. ex. par séchage du coagulum
EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
UNIVERSITÉ DE GENÈVE (Suisse)
Inventeur(s)
Duchêne, Leo
Kuehnel, Ruben-Simon
Remhof, Arndt
Battaglia, Corsin
Moury, Romain
Hagemann, Hans
Abrégé
26266 thiols, DMF, DMSO and thioethers; and (c) drying the solution of step (b) to obtain a solid salt composition comprising the at least two different borate anions, optionally in the predetermined molar ratio. The invention is also directed to corresponding use of the method for the manufacture of a salt composition comprising at least two different borate anions, as well as to related products.
EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
Inventeur(s)
Salentinig, Stefan
Zabara, Mahsa
Abrégé
The present invention relates to the use of an antimicrobial liquid crystal composition for coating a surface, said composition comprising amphiphilic lipids, antimicrobial agents and water for forming liquid crystals at and/or above room temperature. The invention further relates to corresponding surface coating methods and also to surface-coated devices, optionally medical devices and implants featuring said liquid crystal compositions.
A01N 25/24 - Biocides, produits repoussant ou attirant les animaux nuisibles, ou régulateurs de croissance des végétaux, caractérisés par leurs formes, ingrédients inactifs ou modes d'applicationSubstances réduisant les effets nocifs des ingrédients actifs vis-à-vis d'organismes autres que les animaux nuisibles contenant des ingrédients augmentant l'adhérence des ingrédients actifs
A01P 1/00 - DésinfectantsComposés antimicrobiens ou leurs mélanges
74.
METHOD FOR PREPARING A SILOXANE BASED POLYMERIC LIQUID MATERIAL AND MATERIALS MADE THEREFROM
EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
Inventeur(s)
Koebel, Matthias
Stojanovic, Ana
Malfait, Wim
Nour, Adilien
Abrégé
12coreshellshell in the range of 0.3 to 2.5. At least 75 atomic percent of all Si atoms in the core are bonded exclusively to alkoxy or bridging oxygens, the remainder each being bonded to 3 oxygens and 1 carbon. The total Si to free hydrolysable alkoxy molar ratio in the material is 1 : 1.25 to 1: 2.75, and the material has a viscosity in the range of 10 - 100'000 cP. A method for preparing the polymeric liquid material relies on first forming the hyper- branched polysiloxane core followed by a build-up of the functional siloxane shell. To do so, a reaction scheme based on adding stoichiometric amounts of acetic anhydride in a water-free environment is exploited.
EMPA EIDGENOSSISCHE MATERIALPRUFUNGS- UND FORSCHUNGSANSTALT (Suisse)
Inventeur(s)
Verma, Anand
Martineau, David
Nuesch, Frank
Heier, Jacob
Meyer, Tobias
Abrégé
The present invention concerns a method for deposition layersof an electronic device by slot- diedeposition. Preferably, the method comprises slot-diedeposition of formulationfor providing compact inorganic layers, mesoporous inorganic layers, a carbon layer and a layer comprising organic-inorganic perovskite. In a preferred embodiment, the layers of a monolithic perovskite solar cell are entirely deposited by slot-diedeposition. The method renders themanufacturing process of such electronic devices more efficient.
76.
NOVEL ELECTRONIC DEVICE AND METHOD FOR PRODUCING LAYERS OF THE SAME
EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
SOLARONIX S.A. (Suisse)
Inventeur(s)
Verma, Anand
Martineau, David
Nüesch, Frank
Heier, Jacob
Meyer, Tobias
Abrégé
The present invention concerns a method for producing layers of an electronic device and to a method for producing electronic devices. The method comprises co-firing a plurality of different overlapping or superposed films comprising metal oxides, precursors of the aforementioned and/or carbon, in addition to organic components. The method renders the manufacturing process of such electronic devices more efficient.
EMPA EIDGENOSSISCHE MATERIALPRUFUNGS- UND FORSCHUNGSANSTALT (Suisse)
Inventeur(s)
Verma, Anand
Martineau, David
Nuesch, Frank
Heier, Jacob
Meyer, Tobias
Abrégé
The present invention concerns a method for producing layers of an electronic device and to a method for producing electronic devices. The method comprises co-firing a plurality of different overlapping or superposed films comprising metal oxides, precursors of the aforementioned and/or carbon, in addition to organic components. The method renders the manufacturing process of such electronic devices more efficient.
78.
NOVEL ELECTRONIC DEVICE AND METHOD FOR SLOT-DIE DEPOSITING LAYERS OF THE SAME
EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
SOLARONIX S.A. (Suisse)
Inventeur(s)
Verma, Anand
Martineau, David
Nüesch, Frank
Heier, Jacob
Meyer, Tobias
Abrégé
The present invention concerns a method for deposition layersof an electronic device by slot- diedeposition. Preferably, the method comprises slot-diedeposition of formulationfor providing compact inorganic layers, mesoporous inorganic layers, a carbon layer and a layer comprising organic-inorganic perovskite. In a preferred embodiment, the layers of a monolithic perovskite solar cell are entirely deposited by slot-diedeposition. The method renders themanufacturing process of such electronic devices more efficient.
EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
Inventeur(s)
Gaan, Sabyasachi
Hufenus, Rudolf
Nazir, Rashid
Simonetti, Pietro
Salmeia, Khalifah
Parida, Dambarudhar
Gooneie, Ali
Abrégé
The present invention exploits reactive organophosphorus compounds containing unsaturated vinyl groups, which can be used in a flexible and highly controlled manner to prepare various macromolecular derivatives either via radical reactions or via Michael addition with suitable nucleophiles. Based on the fact that secondary amine groups on the one hand and vinyl groups on the other hand can work as mutual linking sites, an arsenal of novel and useful addition products can be built up. By selecting the number of secondary amine sites and vinyl sites of the participating reaction partners, very different addition products can be formed. In particular, one can form either linear chain type macromolecules (i.e. linear oligomers or polymers) or highly crosslinked network polymers.
C08G 79/00 - Composés macromoléculaires obtenus par des réactions créant dans la chaîne principale de la macromolécule une liaison contenant des atomes autres que le silicium, le soufre, l'azote, l'oxygène et le carbone, avec ou sans ces derniers éléments
C08G 79/02 - Composés macromoléculaires obtenus par des réactions créant dans la chaîne principale de la macromolécule une liaison contenant des atomes autres que le silicium, le soufre, l'azote, l'oxygène et le carbone, avec ou sans ces derniers éléments créant une liaison contenant du phosphore
C08G 73/00 - Composés macromoléculaires obtenus par des réactions créant dans la chaîne principale de la macromolécule une liaison contenant de l'azote, avec ou sans oxygène ou carbone, non prévus dans les groupes
80.
In situ and real time quality control in additive manufacturing process
Use of a sensor read out system with at least one fiber optical sensor, which is connected via at least one signal line to a processing unit as part of an additive manufacturing setup, for in situ and real time quality control of a running additive manufacturing process. Acoustic emission is measured via the at least one fiber optical sensor in form of fibers with Bragg grating, fibre interferometer or Fabry-Perot structure, followed by a signal transfer and an analysis of the measured signals in the processing unit, estimation of the sintering or melting process quality due to correlation between sintering or melting quality and measured acoustic emission signals and subsequent adaption of ion and electron beams, microwave or laser sintering or melting parameters of a ion and electron beams, microwave or laser electronics of the additive manufacturing setup in real times via a feedback loop as a result of the measured acoustic emission signals after interpretation with an algorithmic framework in the processing unit.
B29C 64/393 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
B22F 3/105 - Frittage seul en utilisant un courant électrique, un rayonnement laser ou un plasma
B29C 64/153 - Procédés de fabrication additive n’utilisant que des matériaux solides utilisant des couches de poudre avec jonction sélective, p. ex. par frittage ou fusion laser sélectif
G01D 5/353 - Moyens mécaniques pour le transfert de la grandeur de sortie d'un organe sensibleMoyens pour convertir la grandeur de sortie d'un organe sensible en une autre variable, lorsque la forme ou la nature de l'organe sensible n'imposent pas un moyen de conversion déterminéTransducteurs non spécialement adaptés à une variable particulière utilisant des moyens optiques, c.-à-d. utilisant de la lumière infrarouge, visible ou ultraviolette avec atténuation ou obturation complète ou partielle des rayons lumineux les rayons lumineux étant détectés par des cellules photo-électriques en modifiant les caractéristiques de transmission d'une fibre optique
G01N 29/12 - Analyse de solides en mesurant la fréquence ou la résonance des ondes acoustiques
G01N 29/14 - Recherche ou analyse des matériaux par l'emploi d'ondes ultrasonores, sonores ou infrasonoresVisualisation de l'intérieur d'objets par transmission d'ondes ultrasonores ou sonores à travers l'objet utilisant des techniques d'émission acoustique
EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
ETH ZÜRICH (Suisse)
UNIVERSITÄT STUTTGART (Allemagne)
Inventeur(s)
Rüggeberg, Markus
Burgert, Ingo
Grönquist, Philippe
Menges, Achim
Wood, Dylan
Abrégé
The disclosed invention consists of a manufacturing method of complex shaped laminated multi-layer plant-fibre based construction components (4') of isotropic or anisotropic plant-fibre based elements (0, 0'), which is more cost-efficient and resource-efficient by producing less waste. This is reached while plant-fibre based elements (0, 0') are deformed by a self-forming step (II) forming shape-changed plant- fibre based components (3') by application of an input stimulus (2) change from initial condition with initial wood moisture content (U1) and initial temperature (T1) to end condition with end wood moisture content (U2) and end temperature (T2) for a moisture change ΔU between 1% to 20% and/or a temperature change between 0°C and 70°C, before the shape-changed plant-fibre based components (3') are stacked and connected in a stacking and fixing step (III) forming shaped laminated multi-layer plant-fibre based construction components (4) for further treatment.
B29C 70/34 - Façonnage par empilage, c.-à-d. application de fibres, de bandes ou de feuilles larges sur un moule, un gabarit ou un noyauFaçonnage par pistolage, c.-à-d. pulvérisation de fibres sur un moule, un gabarit ou un noyau et façonnage ou imprégnation par compression
B27D 1/08 - Fabrication d'objets conformésPresses spécialement conçues pour ce but
B32B 21/04 - Produits stratifiés composés essentiellement de bois, p. ex. une planche de bois, une feuille de placage, une feuille de bois aggloméré comprenant du bois comme seul composant ou composant principal d'une couche adjacente à une autre couche d'une substance spécifique
B32B 21/08 - Produits stratifiés composés essentiellement de bois, p. ex. une planche de bois, une feuille de placage, une feuille de bois aggloméré comprenant du bois comme seul composant ou composant principal d'une couche adjacente à une autre couche d'une substance spécifique de résine synthétiqueProduits stratifiés composés essentiellement de bois, p. ex. une planche de bois, une feuille de placage, une feuille de bois aggloméré comprenant du bois comme seul composant ou composant principal d'une couche adjacente à une autre couche d'une substance spécifique de résine renforcée de fibres
82.
SUBSTRATE MIXTURE FOR FUNGAL MATERIAL, FUNGAL CULTURE AND USE THEREOF
EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
Inventeur(s)
Schwarze, Francis W.M.R.
Ribera Regal, Javier
Zimmermann, Tanja
Abrégé
A substrate mixture for fungal material contains water, a binder and nanocellulose. The substrate mixture is suitable for producing a fungal culture or for storing, transporting or applying fungal material, such as fungal spores, mycelium and hyphae, and thus makes possible the treatment of materials based on cellulose, hemicellulose and/or lignin, soil and cultivated land, waste from agriculture and forestry, plants and wood, bioaugmentation, bioremediation or biological pest control.
EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
Inventeur(s)
Madi, Mohammadreza
Alberti, Edoardo
Shorubalko, Ivan
Abrégé
A waveguide spectrometer includes at least one substrate layer with at least one waveguide. Each waveguide extends from an inlet face proceeding partly through the substrate layer to a reflecting element. A multiplicity of photo detectors is arranged on a front side of the substrate layer, while the photo detectors are electrically connected to an electronic read out system. The spectrometer can be made lightweight and easier to produce by forming the waveguides as surface waveguides, each showing a longitudinal opening with a width to the front side of the substrate layer between the inlet face and the reflecting element. The photo detectors are in print distributed at the front side on top of the substrate layer at least partly overlapping the longitudinal opening along an overall length of sampled region and the electrical connection of the photo detectors with the electronic read out system is achieved by a multiplicity of printed electrical conductors.
EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
Inventeur(s)
Domaschke, Sebastian
Ehret, Alexander
Abrégé
A Fibre network, comprising a stack of fibre network layers each comprising a randomly or stochastically distributed at least one fibre with fibre thickness distributed around a mean fibre diameter (d), fixed at a multiplicity of cross-links along the at least one fibre, forming a multiplicity of fibre segments with average fibre segment length (Is), produced by a random production process, wherein the fibre network shows auxetic behaviour, should be generated with increased volume and porosity on demand. This is reached by providing a fibre network comprising a polymer fibre and solely randomly or stochastically non-periodic and non-regular formed three-dimensional fibrous structures by at least one fibre forming fibre network layer with multiplicity of cross-links along the fibre or fibres, with a mean fibre diameter (d) between 10 nm and 10 μm, with length of fibre segments (Is), between two cross-links along a fibre, larger than 50 nm, and with a majority of fibre segments with aspect ratios of fibre segments (Is) to fibre diameter (d) of Is/d greater than or equal to 5, showing an out of plane expansion due to out-of-plane deflection of the fibre network in a direction (z-direction) perpendicular to the axis (x or y) of elongation of the fibre network, due to the highly irregular random or stochastic structure.
D04H 1/728 - Non-tissés formés uniquement ou principalement de fibres coupées ou autres fibres similaires relativement courtes caractérisés par la méthode de formation des voiles ou couches, p. ex. par la réorientation des fibres les fibres étant disposées au hasard par électrofilage
85.
Phononic crystal vibration isolator with inertia amplification mechanism
A unit cell of an artificial phononic crystal for building of an artificial phononic metamaterial, showing reduced mechanical vibrations in a defined frequency range with at least one band gap in the band structure dispersion relation of the unit cell. The unit cell includes at least one building block and at least one mechanical connection connected to the building block, showing reduced mechanical vibrations in a defined frequency range with tailored dispersion properties with at least one band gap is sought. This is accomplished by forming the building block as a toroid, with a central opening and a front surface from which a first multiplicity of struts, which are tiltable relatively to the principal direction, is extending from the front surface. More than one strut is inclined with respect to the principal direction so that a rotation of the toroid around the principal direction is possible.
F16F 15/00 - Suppression des vibrations dans les systèmesMoyens ou dispositions pour éviter ou réduire les forces de déséquilibre, p. ex. dues au mouvement
G10K 11/165 - Sélection de matériaux de particules dans une matrice
EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
Inventeur(s)
Spano, Fabrizio
Faccio, Greta
Rossi, René
Abrégé
The present invention is directed to a method for the controlled deposition of liquid droplets in polymer compositions for forming droplet polymer composite compositions, comprising the steps of time-controlled settlement of deposited discrete liquid droplets within an unpolymerized pre-polymer composition, and controlled polymerization of the pre-polymer composition comprising the settling discrete droplets. The present invention further relates to droplet-loaded polymer material prepared by said method as well as to the use of said material for preparing, e.g. drug delivery materials, synthetic organs, microreactors for chemical reactions, multiunit storage reservoirs, filter materials, exchange materials, magnetic materials, photonic crystals, data storage devices or simple substance storage devices.
The invention relates to a method of preparing a silica aerogel starting from a dispersion of an aqueous water glass solution, an organosilicon and a nonpolar organic solvent. The gelation process is initiated by adding an acid to the dispersion. A phase transfer agent is added before, during or after the addition of said acid. Subsequently, the aqueous phase is separated from the organic phase and the organic phase comprising the gel is dried. The invention further relates to an aerogel obtainable by such method.
EMPA, EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
Inventeur(s)
Ansó Romeo, Juan
Weber, Stefan
Gerber, Kate
Thorwarth, Kerstin
Chacko, Aarati
Patscheider, Jörg
Abrégé
e1e2e3e4eNi1i2i3iMiM). A 1ste1e1) at least partially covers the substrate base (5), whereas each mthi1i2i3i4iMiM) partially covers the mthe1e2e3e4e4,...) and each nthe2e3e4e4) partially covers the (n-1)thi1i2i3e1e2e3e4eNi1i2i3iMe1e1e2e3e4eNe2e3e4e4) of the N electrically conducting coatings is an anode.
A detector supplement device for integration in a spectroscopy setup with the spectroscopy setup including a vacuum chamber, a light source, a sample irradiating a reflected photon beam and a charged particle beam in the same direction of propagation into a radiation detector which is able to detect ultrafast electric currents originating from charged particles. The detector supplement device includes a Rogowski coil placeable inside the vacuum chamber between the sample and radiation detector. The charged particle beam is guided through the hollow core of the Rogowski coil allowing synchronized measurements of electrical currents due to the charged particle beam correlated to the reflected photon beam, while irradiation of the reflected photon beam and the charged particle beam takes place in the same direction of propagation.
H01J 37/285 - Microscopes à émission, p. ex. microscopes à émission de champ
H01J 37/244 - DétecteursComposants ou circuits associés
G01N 23/227 - Recherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en mesurant l'émission secondaire de matériaux en mesurant l'effet photo-électrique, p. ex. microscopie d'émission photo-électronique [PEEM]
G01R 15/18 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs inductifs, p. ex. des transformateurs
90.
HYDRAULIC DRIVE FOR ACCELERATING AND BRAKING DYNAMICALLY MOVING COMPONENTS
EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
WOLFGANG SCHNEIDER INGENIEURBÜRO (Suisse)
Inventeur(s)
Schneider, Wolfgang
Soltic, Patrik
Omanovic, Andyn
Abrégé
The aim of the invention is to ensure that a hydraulic drive (10) for accelerating and braking a gas exchange valve (20) of internal combustion engines or other reciprocating engines operates in a simple, reliable and recuperative manner. To this end, a first pressure tank (41) for providing a first pressure p1, a restoring energy accumulator preferably embodied as a spring (25), and at least one hydraulic basic pressure tank (40) having a lower pressure p0 than the first pressure tank (41) are provided. A controllable opening (49) of a first valve (46) is arranged with at least one non-return valve (47) located upstream or downstream of the opening in the flow path, in a connection line (48) between the first hydraulic pressure tank (41) and the working cylinder (22), said non-return valve allowing the pressure medium (30) to flow towards the working cylinder (22) but preventing it from flowing back towards the pressure tank (41). In order to also initiate the closing movement or the braking of the gas exchange valve in a hydraulically simple and reliable manner, a controllable opening (59) of a second valve (56) is arranged in a second connection line (58) between the first pressure tank (41) and the working cylinder (22), with a non-return valve (57) that prevents flow towards the working cylinder (22) but allows backflow towards the pressure tank (41).
F01L 9/02 - Systèmes de distribution à soupapes, à commande non mécanique à fluide, p.ex. hydraulique
F01L 13/00 - Modifications du système de distribution pour permettre l'inversion du sens de marche, le freinage, le démarrage, le changement de taux de compression ou autre opération déterminée
F01L 1/46 - Parties constitutives, détails ou accessoires, non couverts par un des sous-groupes précédents
91.
METHOD FOR PRODUCING DENSIFIED CELLULOSIC COMPOSITE MATERIAL
EMPA, EIDGENOSSISCHE MATERIALPRUFUNGS- UND FORSCHUNGSANSTALT (Suisse)
Inventeur(s)
Schnider, Thomas
Burgert, Ingo
Segmehl, Jana
Keplinger, Tobias
Abrégé
The present invention provides a method for obtaining densified material comprising the steps of: a. providing lignocellulosic material, b. delignification of the lignocellulosic material providing a delignified material, wherein the delignification step is performed in such a way that the lignin of the lignocellulosic material is almost completely removed and wherein the structural integrity of the lignocellulosic material is maintained in the delignified material, c. densification of the delignified material providing a densified material. Furthermore, a densified material is provided. The fibers and fibrils are maintained in the structural directionality of the raw material and that the cellulosic material is whitish.
D21C 3/02 - Réduction en pâte des matières contenant de la cellulose avec des bases inorganiques ou des composés à réaction alcaline, p. ex. procédés au sulfate
D21C 3/04 - Réduction en pâte des matières contenant de la cellulose avec des acides, des sels acides ou des anhydrides d'acide
EMPA, EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
Inventeur(s)
Schnider, Thomas
Burgert, Ingo
Segmehl, Jana
Keplinger, Tobias
Abrégé
The present invention provides a method for obtaining densified material comprising the steps of: a. providing lignocellulosic material, b. delignification of the lignocellulosic material providing a delignified material, wherein the delignification step is performed in such a way that the lignin of the lignocellulosic material is almost completely removed and wherein the structural integrity of the lignocellulosic material is maintained in the delignified material, c. densification of the delignified material providing a densified material. Furthermore, a densified material is provided. The fibers and fibrils are maintained in the structural directionality of the raw material and that the cellulosic material is whitish.
D21C 3/02 - Réduction en pâte des matières contenant de la cellulose avec des bases inorganiques ou des composés à réaction alcaline, p. ex. procédés au sulfate
D21C 3/04 - Réduction en pâte des matières contenant de la cellulose avec des acides, des sels acides ou des anhydrides d'acide
EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
Inventeur(s)
Toncelli, Claudio
Zhang, Haijiang
Rossi, René
Puigmarti, Joseph
Abrégé
A method and a microfluidic device for producing a polymeric fibre rely on a tubular flow chamber (2) with a longitudinal centre axis (A), the flow chamber having an inlet section (4) and an outlet section (6) axially displaced therefrom in a downstream direction, the inlet section comprising a core inlet (8) and at least one sheath inlet (10). To improve compactness and operational flexibility, the core inlet comprises a core inlet tube (14) disposed coaxially within the flow chamber and having a terminal opening (16) which is selectively positionable between a first core axial position (zc1) and a second core axial position (zc2). The sheath inlet comprises at least one group of at least two inlet channels (18a, 18b) leading into the flow chamber at respective inlet openings (20a, 20b), the inlet channels of each channel group being formed as substantially identical elongated channels within said chamber body and being disposed symmetrically around the longitudinal centre axis in a manner converging in downstream direction at an intersecting inclination angle α, the inlet openings of a given channel group having substantially identical axial positions (zs) and the intersecting inclination angle α of each channel group being selected in the range of 0º to 45º.
The present invention relates to a method for manufacturing hydrophilic biopolymers, particularly hydrophilic cellulosic material, particularly cellulose nanofibers like micro- or nanofibrillated cellulose, as described in claim 1; to novel materials comprising hydrophilic biopolymers and to the use of such hydrophilic biopolymers.
C08J 3/05 - Production de solutions, dispersions, latex ou gel par d'autres procédés que ceux utilisant les techniques de polymérisation en solution, en émulsion ou en suspension dans un milieux aqueux à partir de polymères solides
C08J 3/09 - Production de solutions, dispersions, latex ou gel par d'autres procédés que ceux utilisant les techniques de polymérisation en solution, en émulsion ou en suspension dans des liquides organiques
EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
Inventeur(s)
Buecheler, Stephan
Filippin, Alejandro, Nicolas
Rawlence, Michael
Abrégé
The disclosed invention consists of a multi-layered thin film Li-ion based electrochemical energy storage cell, prepared in-situ in subsequent deposition processes, in which the subsequent deposited layers resist elevated temperatures of 700°C or higher. This is reached by a multi-layered thin film Li-ion based electrochemical energy storage cell, comprising a substrate layer, in form of a metal or non- metal compound temperature-resistant to at least 700°C and higher, a cathode current collector layer, comprising at least two metal elements, deposited directly onto the substrate layer, a cathode layer comprising a lithium compound, which crystallises at elevated temperatures at or above 700°C, a solid electrolyte layer comprising lithium, which crystallises at elevated temperatures at or above 700°C, an anode layer and an anode current collector layer.
H01M 10/0585 - Structure ou fabrication d'accumulateurs ayant uniquement des éléments de structure plats, c.-à-d. des électrodes positives plates, des électrodes négatives plates et des séparateurs plats
96.
AUTONOMOUS SHADING SYSTEM BASED ON COUPLED BILAYER ELEMENTS
EMPA, EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
Inventeur(s)
Burgert, Ingo
Vailati, Chiara
Rüggeberg, Markus
Abrégé
The invention relates to a shading device. This device comprises a pivot mounted shading element and an actuator element for turning the shading element in a rotary movement. The actuator element comprises a first and a second end and is fixed to a base with the first end. The actuator element is able to reversibly bend its shape in response to environmental parameters, wherein the second end bends towards the shading element in a bending movement. The shading element and the actuator element are arranged in such a way that the bending movement results in an interaction of the elements, achieving the rotary movement of the shading element.
EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
Inventeur(s)
Madi, Mohammadreza
Alberti, Edoardo
Shorubalko, Ivan
Abrégé
The disclosed invention consists of a waveguide spectrometer (1), comprising at least one substrate layer (10) with at least one waveguide, each waveguide is extending from an inlet face (12) proceeding partly through the substrate layer (10) to a reflecting element (13), wherein a multiplicity of photo detectors (14) is arranged on a front side (I) of the substrate layer (10), while the photo detectors (14) are electrically connected to an electronic read out system, which should be lightweight and easier to produce. This is reached by forming the waveguides as surface waveguides (11, 11', 11", 11"'), each showing a longitudinal opening (110) with a width (D) to the front side (I) of the substrate layer (10) between the inlet face (12) and the reflecting element (13), while the photo detectors (14, 14', 14", 14"') are in print distributed at the front side (I) on top of the substrate layer (10) at least partly overlapping the longitudinal opening (110) of the surface waveguide (11) along an overall length of sampled region (Is) and the electrical connection of the photo detectors (14, 14', 14", 14"') with the electronic read out system is achieved by a multiplicity of printed electrical conductors (15).
EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
Inventeur(s)
Schwarze, Francis
Ribera-Regal, Javier
Abrégé
The present invention is directed to live Trichoderma harzianum EMPA 720 or live Trichoderma koningiopsis EMPA 723, a composition of these further comprising at least one physiologically acceptable carrier compound, and a method for treating soil and/or plant material.
EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
Inventeur(s)
Wasmer, Kilian
Shevchik, Sergey
Vakili Farahani, Farzad
Violakis, Georgios
Vaucher, Sébastien
Abrégé
The disclosed invention discloses the use of a sensor read out system with at least one fiber optical sensor (50), which is connected via at least one signal line (51) to a processing unit (52) as part of an additive manufacturing setup, for in situ and real time quality control of a running additive manufacturing process, wherein acoustic emission is measured via the at least one fiber optical sensor (50) in form of fibers with Bragg grating, fibre interferometer or Fabry-Perot structure (500), followed by a signal transfer (51) and an analysis of the measured signals in the processing unit (52), estimation of the sintering or melting process quality due to correlation between sintering or melting quality and measured acoustic emission signals and subsequent adaption of ion and electron beams, microwave or laser sintering or melting parameters of a ion and electron beams, microwave or laser electronics (1) of the additive manufacturing setup in real times via a feedback loop (53) as a result of the measured acoustic emission signals after interpretation with an algorithmic framework in the processing unit (52).
G01D 5/353 - Moyens mécaniques pour le transfert de la grandeur de sortie d'un organe sensibleMoyens pour convertir la grandeur de sortie d'un organe sensible en une autre variable, lorsque la forme ou la nature de l'organe sensible n'imposent pas un moyen de conversion déterminéTransducteurs non spécialement adaptés à une variable particulière utilisant des moyens optiques, c.-à-d. utilisant de la lumière infrarouge, visible ou ultraviolette avec atténuation ou obturation complète ou partielle des rayons lumineux les rayons lumineux étant détectés par des cellules photo-électriques en modifiant les caractéristiques de transmission d'une fibre optique
B22F 3/105 - Frittage seul en utilisant un courant électrique, un rayonnement laser ou un plasma
B33Y 30/00 - Appareils pour la fabrication additiveLeurs parties constitutives ou accessoires à cet effet
G01N 29/12 - Analyse de solides en mesurant la fréquence ou la résonance des ondes acoustiques
EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT (Suisse)
Inventeur(s)
Wasmer, Kilian
Vakili Farahani, Farzad
Shevchik, Sergey
Violakis, Georgios
Delval, Christophe
Abrégé
The disclosed invention presents the use of acoustic emission read out system with at least one fiber optical sensor (50) with a compatible prop (51), which is connected via at least one signal line (52) to a processing unit (53) as part of a laser welding setup, for in-situ and real time quality control of a running laser welding process, wherein acoustic emission is measured via the at least one fiber optical sensor (50) in form of fibers with Bragg grating, fiber interferometer or Fabry-Perot structure, followed by a signal transfer and an analysis of the measured signals in the processing unit (53), estimation of the laser welding process quality due to correlation between welding quality and measured acoustic emission signals and either stopping the welding process or subsequent adaption of laser welding parameters of a laser electronics (1) of the laser welding setup in real time via a feedback loop (54) as a result of the measured acoustic emission signals after interpretation with an algorithmic framework in the processing unit (53).