The invention relates to a visual indicator of washing a textile product, comprising a textile carrier layer, wherein coloured textile fibres are deposited on at least one surface of the textile carrier layer by means of a water-soluble binder, the coloured textile fibres covering between 1 % and 20 % of the surface area of the textile carrier layer.
The invention relates to a method of inserting reinforcement into a cement mixture while creating objects by 3D printing. Individual layers (7) of concrete are successively placed on top of each other by means of a printing head (6) arranged on a positioning device (22), being connected by at least one reinforcement (8) in the form of a cable or wire. During the deposition of a new layer (7) of concrete, immediately in front of the printing head (6), the reinforcement (8) is periodically shaped, pressed in and pulled out of the previous deposited layer (7), forming a periodically repeating continuous curve which partly extends above the previously deposited layer (7) and which is immediately afterwards completely covered by the concrete of the new layer (7). A device (9) for inserting reinforcement (8) into concrete when creating objects by 3D printing and a device for creating objects by 3D printing comprising this reinforcement inserting device (9) are also claimed.
B28B 23/02 - Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material wherein the elements are reinforcing members
B28B 23/00 - Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material
The invention relates to a photocatalytic system which comprises a mesh (1) made of a UV radiation resistant material, wherein a geopolymer layer (4) having a thickness of 10 to 2000 micrometres is deposited on the fibres (2) thereof, wherein expanded graphite particles (5) having a diameter of 0.1 to 5 mm are anchored in the layer (4) by a part of their surface, wherein the amount of expanded graphite is 0.1 to 50 g/m2, and titanium dioxide in the amount of 0.1 to 10 g/m2 is deposited on the surface of the expanded graphite particles (5). In addition, the invention relates to a photocatalytic reactor comprising at least one layer of the above-mentioned photocatalytic system, the layer being associated with at least one radiation source for activating titanium dioxide in the structure of the photocatalytic system.
The present invention relates to a method for fabricating a composite based on natural Kondagogu gum polymer and MXene blend using environmentally friendly solvents and reagents. The obtained sustainable composite shows enhanced physicochemical properties, structural characterization, chemical and thermal stability and biodegradation performance.
C08L 5/00 - Compositions of polysaccharides or of their derivatives not provided for in group or
C08B 37/00 - Preparation of polysaccharides not provided for in groups Derivatives thereof
5.
METHOD OF PRODUCING A LINEAR NANOFIBROUS STRUCTURE IN AN ALTERNATING ELECTRIC CURRENT (AC) ELECTRIC FIELD FROM A POLYMER SOLUTION OR POLYMER MELT AND A DEVICE FOR PERFORMING THE METHOD
The invention relates to a method of producing a linear nanofibrous structure in an AC electric field from a polymer solution or polymer melt, in which nanofibers (5) are formed from the polymer solution (21) or polymer melt in a spinning area (110, 120, 130) formed on a spinning electrode (1, 11, 12, 13) and by the action of an electric wind are carried away from it in the direction of the gradient of the generated electric fields. The polymer solution (21) or polymer melt is conveyed to the spinning area (110, 120, 130) by moving the spinning electrode (1, 11, 12, 13) and is subjected to an electric field of supercritical intensity (E) to form nanofibers (5) which move away from the spinning area (110, 120, 130) and are deposited on the collection area (40, 410, 420) of the moving electrically neutral collector (4, 41, 42), on which they form a fluffy band (51) of nanofibers, which is moved by the movement of the electrically neutral collector (4, 41, 42) to the withdrawal area (401, 4101, 4201) in which the surface of the electrically neutral collector (4, 41, 42) is withdrawn by the tensile force of the winding device (7) or the drawing-off device, and then wound. The twisting of the fluffy band (51) of nanofibers into a nanofibrous yarn (54) after its withdrawal from the electrically neutral collector (4, 41, 42) can be carried out before and after winding. In addition, the invention relates to a device for performing this method.
METHOD OF PREPARATION OF HIERARCHICALLY STRUCTURED SELF-REINFORCING COMPOSITE SYSTEMS BASED ON BIOPOLYMERS OF POLYLACTIC ACID, AND SUCH COMPOSITE SYSTEMS
The invention relates to a method of preparation of hierarchically structured self-reinforcing composite systems based on biopolymers of polylactic acid, in which a polymer solution is prepared, containing 5 to 15 wt. % of poly(L- lactide) or symmetric or asymmetric mixtures of poly(L-lactide) and poly(D- lactide) and 85 to 95 wt. % of a solvent system consisting of a mixture of dichloromethane, dimethyl sulfoxide and pyridine in the ratio (3 to 7.5) : (1.5 to 4) : (0.5 to 3.5). This solution is transformed into nanofibers of poly(L-lactide) or mixtures of poly(L-lactide) and poly(D-lactide) by spinning, wherein these nanofibers, after their formation, are deposited on the surface of a fibrous core (2) made from polylactic acid biopolymer, which rotates or balloons around its longitudinal axis, whereby a two-component core yarn based on polylactic acid is prepared. Subsequently, a flat fabric is formed from this yarn, wherein at least one layer of the flat fabric is deposited at elevated temperature and pressure in a matrix (5) based on a polylactic acid biopolymer with a melting temperature lower than or equal to the melting temperature of a nanofibrous sheath (3) of the two- component core yarn, wherein during deposition the structure of the flat fabric is saturated with the matrix (5), thereby creating a hierarchically structured self- reinforcing composite system based on polylactic acid biopolymers, which consists of 5 to 35 wt. % of a two-component core yarn based on polylactic acid.
D01D 5/00 - Formation of filaments, threads, or the like
D01F 6/62 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from homopolycondensation products from polyesters
D01F 8/14 - Conjugated, i.e. bi- or multicomponent, man-made filaments or the likeManufacture thereof from synthetic polymers with at least one polyester as constituent
D01D 5/18 - Formation of filaments, threads, or the like by means of rotating spinnerets
D02G 3/38 - Threads in which fibres, filaments, or yarns are wound with other yarns or filaments
D03D 15/292 - Conjugate, i.e. bi- or multicomponent, fibres or filaments
D04B 1/14 - Other fabrics or articles characterised primarily by the use of particular thread materials
7.
A METHOD OF PRODUCING A LINEAR NANOFIBROUS STRUCTURE IN AN ALTERNATING ELECTRIC FIELD, A DEVICE FOR PERFORMING THIS METHOD AND A DEVICE FOR PRODUCING A NANOFIBROUS THREAD
The invention relates to a method of producing a linear fibrous structure in an alternating electric field by spinning of a polymer solution or polymer melt on a spinning electrode (1 ), in which nanofibers (5) are formed from the polymer solution or melt in a spinning area (10) created on the spinning electrode (1 ) and are carried away from it by the action of the electric wind. In the spinning area (10), a narrow flat linear structure of polymer solution is formed which has a finite length and is open in the spinning direction and in the central part of the spinning area (10) and supercritical electric field intensity (E) is created along the length of the spinning area (10) at which nanofibers are formed (5) and move away from the spinning area (10) in a flat structure in which they gradually lose their kinetic energy and in a place with zero kinetic energy, nanofibers (5) form a linear virtual collector (7) in which nanofibers (5) stop, collect and compact into a linear nanofibrous structure, the so-called ribbon (6) of nanofibers, which is drawn off. In addition, the invention relates to a device for performing the method and to a device for producing a nanofibrous thread.
A heat and humidity exchange plate for an air-to-air heat exchanger is made by continuously forming an expanded metal structure from a strip of metal foil by slitting the metal foil in a transverse direction, stretching the metal foil in a longitudinal direction, and then rolling over an entire width of the strip of metal foil. The expanded metal structure is subjected to an annealing heat treatment. A vapour-permeable polymeric membrane is provided on the annealed expanded metal structure. Corrugated and embossed-shaped elements are formed on the annealed expanded metal structure with the vapour-permeable polymeric membrane by means of omnidirectional deformation. A circumferential shape of the exchange plate is formed by removing excess edges from the annealed expanded metal structure with the vapour-permeable polymeric membrane.
B21D 53/04 - Making other particular articles heat exchangers, e.g. radiators, condensers of sheet metal
9.
METHOD OF BRAIDING REINFORCING FIBERS ON A FORMING CORE IN THE PRODUCTION OF A FIBER COMPOSITE STRUCTURE, AND A BRAIDED FIBER COMPOSITE STRUCTURE PREPARED BY THIS METHOD
The invention also relates to a method of laying reinforcing fibres (2) on a forming core (1) in the production of a fibre composite structure, in which the forming core (1) passes through a winding head with a rotary ring with coils of reinforcing fibres (2) from which the reinforcing fibres (2) are unwound and laid on the surface of the forming core (1). During the laying of the reinforcing fibres (2) on the surface of the forming core (1), the speed of rotation of the rotary ring with coils of reinforcing fibres (2) and/or the speed of advance motion of the forming core (1) smoothly changes at least once, as a result of which the orientation angle (β) between the longitudinal axis (10) of the forming core (1) i.e., the angle between the longitudinal axis (10) of the forming core (1) and the axis of the reinforcing fibres (2) being laid, smoothly changes, wherein at least two sections are formed on the surface of the forming core (1) with a different orientation angle (β) of the reinforcing fibres (2), wherein the reinforcing fibres of these sections smoothly merge into each other. In addition, the invention also relates to a fibre composite structure prepared by this method.
B29C 70/32 - Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or coreShaping by spray-up, i.e. spraying of fibres on a mould, former or core on a rotating mould, former or core
B29C 70/22 - Fibrous reinforcements only characterised by the structure of fibrous reinforcements using fibres of substantial or continuous length oriented in at least two directions forming a two dimensional structure
B29C 53/68 - Winding and joining, e.g. winding spirally helically using internal forming surfaces, e.g. mandrels with rotatable winding feed member
B29C 70/54 - Component parts, details or accessoriesAuxiliary operations
10.
PLASTIC MATERIAL FOR THE PREPARATION OF GLASS-CERAMIC FOAM, GLASS-CERAMIC FOAM PREPARED FROM THIS MATERIAL AND A METHOD OF PREPARATION OF THIS GLASS-CERAMIC FOAM
The invention relates to a plastic material for preparing porous glass- ceramic foam, wherein this foam is formed by a homogeneous mixture of high- content-silica sand with an average grain size of 200 to 300 pm or by a homogeneous mixture of ground glass with a grain size of up to 400 pm, sodium water glass with a silicate modulus of 1.9 to 3.2 and a low molecular weight organic plasticizer in a mass ratio of 100 : (3 to 10) : (1 to 5). In the case of the use of high-silica-content sand, the sintering of this plastic material produces open-pore glass-ceramic foam which is formed by a porous structure of sintered silica sand grains, has a porosity of 20 to 80 %, a bulk density of 600 to 1600 kg/m3 and a pore size (diameter) of 5 to 650 pm. In the case of the use of ground glass, the sintering of this plastic material produces porous glass-ceramic foam which is formed by a porous structure of sintered glass grains, has a porosity of 25 to 70 %, a bulk density of 900 to 2100 kg/m3 and a pore size (diameter) of 1 to 700 pm. The invention also relates to a method of preparation of this glass-ceramic foam.
C04B 35/14 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on silica
C04B 38/06 - Porous mortars, concrete, artificial stone or ceramic warePreparation thereof by burning-out added substances
C03C 3/087 - Glass compositions containing silica with 40% to 90% silica by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal containing calcium oxide, e.g. common sheet or container glass
C03C 3/108 - Glass compositions containing silica with 40% to 90% silica by weight containing lead containing boron
C03B 19/06 - Other methods of shaping glass by sintering
The invention relates to an antimicrobial hydrophobizing liquid for surface treatment/protection of smooth non-absorbent materials containing methyl silicone resin dissolved in xylene. The proportion of methyl silicone resin is in the range of 15 to 70 % by weight in the solution, which further contains nanoparticles and/or microparticles of metals and/or their oxides with antimicrobial properties in an amount of 0.001 to 8 % by weight based on the total weight of the solution pro nanoparticles and in an amount of 0.1 to 8 % by weight based on the total weight of the solution for microparticles, wherein the size of the nanoparticles is in the range of 5 to 1000 nm and the size of the microparticles is in the range of 1 to 50 pm.
The invention relates to a device for simulation of a moving vehicle, which comprises a base (1) on which a vertical positioning node is mounted, and on the vertical positioning node a horizontal positioning node is mounted. The vertical positioning node comprises a vertical linear reciprocating actuator (200) and the horizontal positioning node comprises a first horizontal linear reciprocating actuator (210a) and a second horizontal linear reciprocating actuator (210b). The horizontal linear reciprocating actuators (210a, 210b) are arranged above each other in mutually parallel planes, whereby the first horizontal linear reciprocating actuator (210a) is adapted to move in the first horizontal direction (X), the second horizontal linear reciprocating actuator (210b) is adapted to move in the second horizontal direction (Z), whereby the first horizontal direction (X) and the second horizontal direction (Z) are oriented transversely to each other.
The invention relates to an autonomous mobile platform comprising means for moving the autonomous mobile platform through a designated environment, which are coupled to a navigation and computing system for controlling the motion of the autonomous mobile platform and for detecting and identifying obstacles in the planned path in the environment in which it moves. At least one active shield (1) is rotatably mounted on the circumference of the autonomous mobile platform, the active shield (1) being coupled to an actuator (5) to cause the active shield (1) to rotate.
The invention relates to an assembly of travel wheels of a vehicle for use on the road and/or off- road, which comprises at least two wheels (1, 2) mounted in parallel. At least one (1) of the travel wheels is provided with a tyre in the shape of a full torus (8) and at least one travel wheel (2) is provided with circumferential torus segments (4), wherein gaps (5) for interrupting the rolling surface of this travel wheel are arranged between these circumferential torus segments are in the direction of the circumference of this travel wheel.
B60B 11/02 - Units of separate wheels mounted for independent or coupled rotation
B60B 15/26 - Auxiliary wheels or rings with traction-increasing surface attachable to the main wheel body
15.
BIOCOMPATIBLE AND BIODEGRADABLE FIBROUS STRUCTURE CONTAINING SILICA-BASED SUBMICRON FIBERS, BIOGENIC IONS AND WITH A FUNCTIONAL SURFACE FOR BINDING ACTIVE SUBSTANCES AND A METHOD OF ITS PRODUCTION
The invention relates to a biocompatible and biodegradable fibrous structure containing silica-based submicron fibers, biogenic ions and with a functional surface for binding of active substances. The fibers are provided with bioactive ions and the fiber surface is functionalized with aminoalkoxysilane or epoxyalkoxysilane. In addition, the invention relates to a method of producing the biocompatible and biodegradable fibrous structure according to claim 1 or 2, in which a sol prepared by a sol-gel method is spun. Before spinning, the sol is synthetized from low molecular weight tetraalkoxysilane precursor by the sol-gel method in alcohol with the addition of water under acid catalysis, wherein the sol is doped with bioactive ions in the form of salts already during its preparation before spinning and after spinning and the fiber surface is functionalized with aminoalkoxysilane or epoxyalkoxysilane.
D04H 1/728 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by electro-spinning
D06M 13/513 - Compounds with at least one carbon-metal or carbon-boron, carbon-silicon, carbon-selenium, or carbon-tellurium bond with at least one carbon-silicon bond
A61L 27/54 - Biologically active materials, e.g. therapeutic substances
16.
DEVICE FOR DETERMINING THE COEFFICIENT OF DYNAMIC FRICTION OF FLEXIBLE PLANAR AND/OR LINEAR STRUCTURES AND A METHOD FOR DETERMINING THE COEFFICIENT OF DYNAMIC FRICTION
The invention relates to a device for determining the coefficient (f) of dynamic friction of flexible planar and/or linear structures (1a, 1b), which comprises a sensor (2) of tension force (Ft) which acts in a first flexible planar or linear structure (1a), a tensioning means (4) for tensioning the first flexible planar or linear structure (1a) by tension force (Fn), wherein a friction drum (5) is mounted rotatably transversely between the sensor (2) of tensile force (Ft) and the tensioning means (4), wherein the friction drum (5) is coupled to a drive for rotational movement about a longitudinal axis and provided with means for arranging a second flexible planar or linear structure (2b) on the surface of the friction drum (5), wherein the sensor (2) of tension force (Ft) is connected to a computing unit (9) provided with means for determining the coefficient (f) of dynamic friction of the surfaces of the two flexible planar or linear structures (1a, 1b). In addition, the invention relates to a method for determining the coefficient (f) of dynamic friction of flexible planar and/or linear structures (1), in which a first flexible planar or linear structure (1a) which is at one end connected to a sensor (2) of tensile force (Ft) and at the other end loaded by tension force (Fn), presses against the surface of a second flexible planar or linear structure (1b) arranged on the surface of a rotating friction drum (5), wherein a sensor (2) of tensile force (Ft) measures the tensile force (Ft) acting on this end of the first flexible planar or linear structure (1a) and the coefficient (f) of dynamic friction is determined in radians from the known tension force (Fn) and the measured tensile force (Ft).
G01N 19/02 - Measuring coefficient of friction between materials
17.
A METHOD FOR REGULATING THE FLOW OF CEMENT MIXTURE BETWEEN THE CEMENT MIXTURE PUMP AND THE PLACE OF THE CEMENT MIXTURE CONSUMPTION, A DEVICE FOR PERFORMING THE METHOD
The invention relates to a method for regulating the flow of cement mixture between a pump (3) of the cement mixture and the place of consumption of the cement mixture, in which the cement mixture is transported from the pump (3) to the place of consumption through a transport pipeline (4). During the transport of the cement mixture through the transport pipeline (4) the internal volume of at least a section (5) of the transport pipeline (4) is changed depending on the current demand for cement mixture at the place of cement mixture consumption, the section (5) acting as a buffer. The invention also relates to a device for transporting cement mixture between a pump (3) of the cement mixture and the place of consumption of the cement mixture, which comprises a transport pipeline (4) of the cement mixture. The transport pipeline (4) comprises at least one pipeline section (5) with variable volume, e.g. a flexible hose (10) or a telescopic pipe (18, 19), adapted to regulate the flow of the cement mixture through the transport pipeline (4) depending on the current demand for cement mixture at the place of cement mixture consumption.
The invention relates to a vehicle wheel steering mechanism which comprises a linear actuator (1), which is provided with a sliding rod (11) which is coupled by a connecting rod (2) to a vehicle wheel hub carrier (5), wherein between the sliding rod (11) and the connecting rod (2) is inserted a transfer lever (3) which is rotatably mounted in the vehicle frame (7) by its first end (31), wherein by its second end (32) it is rotatably coupled to the end of the sliding rod (11) of the linear steering actuator (1), wherein the transfer lever (3) is between both its ends (31, 32) rotatably connected to the connecting rod (2). In addition, the invention relates to a method of optimizing the vehicle wheel steering mechanism, when for predefined vehicle parameters, the lengths of the individual elements of the mechanism and the distances of the rotatable mountings and connections of the individual elements of the mechanism are determined, then the outer wheel steering angles for different inner wheel steering angles of the same axle are successively determined and the degree of compliance of the vehicle steering with the Ackermann steering condition for different inner wheel steering angles of the axle is evaluated.
The invention relates to a method of navigating an automated guided vehicle for internal logistics, in which the current position and inclination of the vehicle (1) provided with a controlled drive and steering connected to an on-board control system (2) is detected, whereupon this detected current position is compared with the desired position of the vehicle (1) on a specified reference trajectory of the vehicle (1) movement, and from the difference between the two positions, correction of the vehicle (1) movement is determined, which is then used to control the direction and speed of the vehicle (1) movement. The current position and inclination of the vehicle (1 ) is detected by a sensor node (3) with an inertial measurement unit (30) and with a set of optical sensors (31), whereby a time stamp is assigned to the detected current position and inclination of the vehicle (1), which describes the time of data acquisition to determine the corresponding values of the current position (x, y, z) and current rotation (a, b, c) of the sensor node (3), whereupon these data are transmitted to the on-board control system (2) for predictive control of the vehicle (1) movement according to the specified reference trajectory of the vehicle (1) and the detected current position of the vehicle (1). The invention also relates to a system for navigating an automated guided vehicle for internal logistics.
The invention relates to a surface structure of a body which contains a plurality of highly hydrophobic regions with a contact angle Θ from 80° to 170 ° and of highly hydrophilic regions with a contact angle Θ from 0° to 50 ° arranged side by side, which alternate and whose size ranges from 1pm to 10 cm, wherein the difference between the contact angle Θ of the hydrophobic region and the contact angle Θ of the hydrophilic region is at least 50 °. In addition, the invention relates to a method of producing a surface structure of a body in which highly hydrophobic regions with a contact angle Θ from 90 ° to 170 ° and highly hydrophilic regions with a contact angle Θ from 0 ° to 50 ° are formed on the surface of the body, which alternate and are arranged side by side, their size ranging from 1pm to 10 cm, wherein at least one type of these regions is formed by the application of a transparent impregnating liquid with the appropriate property, which is cured after application to the surface of the body.
The invention relates to a method for the preparation of metal foam from a metal melt, in which a metal melt (9) containing up to 25 % by volume of at least one stabilizer is stirred, wherein into the metal melt (9) a gas is blown, which bubbles through and foams the metal melt (9), thus creating a foamed metal melt (9) which forms metal foam after its solidification. The metal melt (9) is exposed to a translational electromagnetic field with a magnetic induction amplitude of 2 to 6 mT during its foaming, as a result of which, Lorentz forces fi_ are generated in the melt (9), which act on the gas bubbles in the melt (9) and accelerate the movement of the bubbles stabilized by the stabilizer/stabilizers towards the melt surface (9), which prevents their agglomeration into larger units. In addition, the invention relates to a device for the preparation of metal foam by the method according to the invention.
A METHOD OF PREPARING A CONTINUOUS LAYER OF POROUS CARBON FIBERS, A CONTINUOUS LAYER OF POROUS CARBON FIBERS PREPARED IN THIS MANNER, AN AIR FILTER AND PERSONAL PROTECTIVE EQUIPMENT COMPRISING AT LEAST ONE SUCH LAYER
The invention relates to a method of preparing a continuous layer consisting of porous carbon fibres by carbonization of a continuous layer consisting of at least 80 % by weight of acrylic fibres, wherein an aqueous reaction mixture is introduced into the structure of the continuous layer consisting of at least 80 % by weight of acrylic fibres with a basis weight of 1200 to 36000 g/m242232322). After reduction of copper hydroxide and formation of elemental copper particles, the continuous layer consisting of acrylic fibers is stabilized in a pre-stressed state and in an oxidizing environment for a period of 10 to 30 minutes at a temperature of 250 to 320 ° C. Afterwards, the structure of acrylic fibres with copper particles is heated under the layer of charcoal or in an atmosphere of an oxidation-inhibiting gas at a rate of 300 to 400 °C/min to a temperature of 1200 to 1500 °C, at which temperature it is kept for 3 to 10 minutes, whereby its carbonization takes place and at least in a part of the structure also graphitization and the formation of a structure formed by carbon of at least 99 % by weight. The amount of copper in this structure is 2 to 15 mg per 1 g of this continuous layer. The invention further relates to a layer prepared by this method and to an air filter and device for filtering inhaled and/or exhaled air provided with at least one continuous layer consisting of porous carbon fibres.
D01F 9/22 - Carbon filamentsApparatus specially adapted for the manufacture thereof by decomposition of organic filaments from polyaddition, polycondensation or polymerisation products from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyacrylonitriles
A41D 13/11 - Protective face masks, e.g. for surgical use, or for use in foul atmospheres
METHOD FOR THE PREPARATION OF A SOL FOR THE PREPARATION OF HYBRID ORGANOSILANE FIBERS BY ELECTROSTATIC SPINNING, THE SOL PREPARED BY THIS METHOD AND HYBRID ORGANOSILANE FIBERS PREPARED BY THE ELECTROSTATIC SPINNING OF THIS SOL
333, wherein (-OR) represents methoxy, ethoxy, isopropoxy, or butoxy groups and the organic molecule can have any of the following structures: an aliphatic structure containing single or multiple bonds; a cyclic structure; a heterocyclic structure containing heteroatoms S, N, P or O in its molecule; an aromatic structure, with at least one aromatic nucleus; a structure combining two of these structures, is mixed with an alcohol-based polar solvent and, optionally, also with at least one silicon-based alkoxide precursor and/or titanium-based alkoxide precursor and/or zirconium-based alkoxide precursor. The mixture thus prepared is homogenized, whereupon distilled or demineralized water and at least one strong inorganic mineral acid is added to it, which adjusts the pH of this mixture to pH ≈ 2. The mixture thus obtained is subsequently heated to a boiling point temperature and this temperature is maintained for 4.5 to 7.5 hours, whereby hydrolysis of alkoxy groups (≡Si-OR) in the structure of the precursor/precursors based on bridged organosilane and optionally, also of the alkoxide precursor/precursors occurs, in which these groups are transformed into silanol groups (≡Si-OH), whereupon these silanol groups polycondensate (≡Si-0-Si≡, polysiloxane bond), whereby from the liquid mixture, a sol consisting of linear and lowly branched organosilane macromolecular structures is formed. Then the sol thus prepared is concentrated and its viscosity is adjusted to 30 to 60 mPa.s at a temperature of 20 °C.
D01D 5/00 - Formation of filaments, threads, or the like
D01F 9/08 - Man-made filaments or the like of other substancesManufacture thereofApparatus specially adapted for the manufacture of carbon filaments of inorganic material
C08G 77/50 - Macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon in which at least two but not all the silicon atoms are connected by linkages other than oxygen atoms by carbon linkages
The present invention relates to a device for detecting and determining the weight of icing on the power line for powering electric vehicles, comprising a housing (1) in which a strain gauge load cell (4) is housed, coupled to a measuring member (9) arranged outside the housing (1) and in which an evaluation module (6) is further housed. The housing (1) comprises a base body (10), in which is rotatably mounted a holder (2), in which a measuring member (9) is mounted perpendicularly to the axis of rotation (24) of the holder (2) and at one end in the horizontal direction, whereby the holder (2) is in contact with the strain gauge load cell (4), which is coupled to the evaluation module (6).
The invention relates to a method of spinning a polymer solution or melt (4) using AC voltage, which is supplied to the spinning electrode (2) and/or to the polymer solution or melt (4). The spinning electrode (2), formed by a linear flexible structure, is during spinning wound between two driven reels (3), which are provided with a spiral groove (30) on their circumference, wherein this spinning electrode (2) is unwound from the spiral groove (30) of one reel (3) and at the same time is wound into the spiral groove (30) of the second reel (3), wherein at least one of these reels (3) with the part of the spinning electrode (2) placed in its spiral groove (30) is submerged in the polymer solution or melt (4) stored in a reservoir (5), whereby the polymer solution or melt (4) is deposited on this part of the spinning electrode (2) and is spun from it in the space between the reels (3) during the subsequent winding from the spiral groove (30) of this reel (3) into the spiral groove (30) of the other reel (3). Spinning takes place around the entire circumference of the spinning electrode (2) and the nanofibres formed, due to the action of Coulomb forces aggregate into a voluminous structure which due to the action of an electric wind driven by ions generated by corona discharges of the electric field in the vicinity of the spinning electrode (2) moves away from the spinning electrode (2). The part of the spinning electrode (2) which is currently situated in the space between the two reels (3) and constitutes the active part (20) of the spinning electrode (2), on whose surface spinning takes place, performs, as a result of winding and unwinding the spinning electrode into/from the spiral grooves (30) of the reels (3) in addition to the movement in the direction of its longitudinal axis, additional reciprocating sliding movement in a direction perpendicular to the longitudinal axis of the active part (20) of the spinning electrode (2). In addition, the invention also relates to a device for performing the method.
D04H 1/728 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by electro-spinning
D01D 5/00 - Formation of filaments, threads, or the like
26.
TEXTILE COMPOSITE WITH ANTIBACTERIAL EFFECT AND AN ABSORBENT HYGIENE AID CONTAINING THIS COMPOSITE
The technical solution relates to a textile composite with antibacterial effect, which contains a carrier textile layer with a basis weight of 10 to 40 g/m2, on which a layer of nanofibers from hydrophilic polymer is arranged, having a basis weight of 0.1 to 10 g/m2, in the nanofibers of which at least one substance with antibacterial effect is incorporated in an amount of 0.5 to 30 % by weight. In addition, the technical solution relates to an absorbent hygiene aid which contains an outer textile layer, an absorbent layer and an inner textile layer intended for contact with the user's skin, in which the inner textile layer is formed by the textile composite according to the technical solution, the textile composite being arranged with its carrier textile layer oriented outwards from the structure of the absorbent aid and its layer of nanofibers oriented towards the absorbent layer.
D04H 1/4374 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece using different kinds of webs, e.g. by layering webs
D04H 1/728 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by electro-spinning
A61F 13/511 - Topsheet, i.e. the permeable cover or layer facing the skin
B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
27.
NANOFIBROUS MATERIAL PARTICULARLY FOR TOPICAL USE IN THERAPIES
09 - Scientific and electric apparatus and instruments
42 - Scientific, technological and industrial services, research and design
Goods & Services
Printshop machines and 3D printers; Printing machines [other than for office use]; 3D printing pens. Information technology and audio-visual, multimedia and photographic devices; Measuring, detecting, monitoring and controlling devices; Sensors, detectors and monitoring instruments; Image scanners; Optical scanners; Electronic scanners; 3D scanners; Software; Application software; Software for processing images, graphics, audio, video and text; software for 3D printing; Data and image processing software for making three dimensional models; Downloadable software applications for use with three dimensional printers; Computer software applications, downloadable. Civil engineering; Engineering design and consultancy; Technical project planning; Technological engineering analysis; Design and testing of new products; Testing, authentication and quality control; Technological research; Design services; Science and technology services; Software development, programming and implementation; Computer aided design for manufacturing operations; Computer aided design services; Computer software design; Software development; Conducting engineering surveys; Conducting industrial experiments; Conducting industrial tests; Material testing; Scientific and technological design; Graphic arts design; Conducting technical project studies; Technological consultancy; Database design and development; Research and development of 3D printing, Relating to the following field: Civil engineering structures.
29.
METHOD OF CONTACTLESS DETERMINATION OF GEOMETRIC ACCURACY OF THE SHAPE OF A TRANSPARENT SHAPED FLAT PRODUCT MADE OF GLASS OR PLASTICS AND A DEVICE FOR PERFORMING THE METHOD
The invention relates to a method of contactless determination of geometric accuracy of the shape of a transparent shaped flat product (6) made of glass or plastics. The transparent shaped flat product (6) to be measured is placed in a predetermined measurement position on a measurement surface (31) of a measuring table (3), against which a measuring head (12) is arranged, fitted with a plurality of contactless measuring probes (11) which are arranged against the measurement surface (31) of the measuring table, whereby the measuring head (12) and the measurement surface (31) of the measuring table (3) move relative to each other during the measurement, whereby the distance between the contactless probes (11) and the measurement surface (31) of the measuring table (3) is constant and in predetermined positions of the contactless measuring probes (11) during the relative movement of the measuring head (12) and the measurement surface (31) of the measuring table (3), the distance of the contactless measuring probes (11) from the surface of the measured transparent shaped flat product (6) is evaluated, whereupon these distance values are compared with the desired distance values in positions corresponding to the measurement positions. The invention also relates to a device for performing the above- mentioned method.
G01B 21/20 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring contours or curvatures, e.g. determining profile
G01B 11/30 - Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces
G01B 17/06 - Measuring arrangements characterised by the use of infrasonic, sonic, or ultrasonic vibrations for measuring contours or curvatures
G01B 17/08 - Measuring arrangements characterised by the use of infrasonic, sonic, or ultrasonic vibrations for measuring roughness or irregularity of surfaces
G01B 5/00 - Measuring arrangements characterised by the use of mechanical techniques
Method for producing polymeric nanofibres by electric or electrostatic spinning of a polymer solution or melt, a spinning electrode for the method, and a device for the production of polymeric nanofibres equipped with at least one such spinning electrode
A spinning electrode for production of polymeric nanofibres by electric or electrostatic spinning of a polymer solution or melt includes a conduit for the polymer solution or melt. A spinning surface on the conduit is defined by a face of the conduit or an extension on the conduit. A screw shaft is disposed within an inner space of the conduit, wherein the screw shaft and an inner wall of the conduit form a screw conveyor. The screw shaft has a lower end that projects out from the conduit and is connected to a hub of a magnetic coupling.
A tunable radio-frequency coil comprises an outer hollow cylinder (1) and an inner hollow cylinder (2) which is at least partially insertable into the outer hollow cylinder (1), whereby each of the cylinders (1, 2) comprises a conductive loop (11, 21) at its outer edge (11, 21) and conductive strips (12, 22) which are mounted with one of its ends in the longitudinal direction on the conductive loop (11, 21), whereby the outer and the inner hollow cylinders (1, 2) are in the extended position oriented with the other free ends of the conductive strips (12, 22) towards each other.
The invention relates to a textile for the protection of electronic information carriers which contains metal. The textile contains a planar and smooth non-woven textile made of synthetic fibres which are coated with surface metal coating.
D06M 11/83 - Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereofSuch treatment combined with mechanical treatment, e.g. mercerising with metalsTreating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereofSuch treatment combined with mechanical treatment, e.g. mercerising with metal-generating compounds, e.g. metal carbonylsReduction of metal compounds on textiles
D06M 11/84 - Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereofSuch treatment combined with mechanical treatment, e.g. mercerising combined with mechanical treatment
G06K 19/073 - Special arrangements for circuits, e.g. for protecting identification code in memory
METHOD FOR PRODUCING POLYMERIC NANOFIBRES BY ELECTRIC OR ELECTROSTATIC SPINNING OF A POLYMER SOLUTION OR MELT, A SPINNING ELECTRODE FOR THE METHOD, AND A DEVICE FOR THE PRODUCTION OF POLYMERIC NANOFIBRES EQUIPPED WITH AT LEAST ONE SUCH SPINNING ELECTRODE
The invention relates to a spinning electrode (1) for the production of polymeric nanofibres by electric or electrostatic spinning of a polymer solution or melt (5), which contains a conduit (2) of the polymer solution or melt (5), one face of which (6) constitutes a spinning surface (60) of the spinning electrode (1), or which is at one of its ends provided with an extension (20) on which a downward rounded or cranked spinning surface (60) of the spinning electrode (1) is formed. The principle of this electrode is that a screw shaft (8) is rotatably mounted in the inner space of the conduit (2) of the solution or melt (5), which together with the inner wall of the conduit (2) constitutes a screw conveyor. The screw shaft (8) extends with its lower end outward from the conduit (2) and is at this end connected to a hub (9) of a magnetic coupling or is provided with means for connection to the hub (9) of the magnetic coupling. In addition, the invention further relates to a device for the production of polymeric nanofibres by electric or electrostatic spinning of a polymer solution or melt and to a method for the production opolymeric nanofibres by electric or electrostatic spinning of a polymer solution or melt.
D01D 5/00 - Formation of filaments, threads, or the like
34.
Method for producing polymeric nanofibers by electrospinning of a polymer solution or melt, a spinning electrode for performing the method and a device for producing polymeric nanofibers equipped with at least one such spinning electrode
The invention relates to a spinning electrode (1) for producing polymeric nanofibers by electrospinning of a polymer solution or polymer melt, containing an inlet pipe (2) of the polymer solution or melt, which ends on its top face (3), whereby around at least a part of the mouth (20) on the top face of the inlet pipe (2) of the polymer solution or melt is formed a spinning surface (4) rounded downwards below the mouth (20), whereby the spinning surface (4) continues as a collecting surface (6) on the outer surface of the inlet pipe (2) of the polymer solution or melt.
The invention also relates to a device for producing nanofibers by electrospinning of a polymer solution or melt, which is equipped with at least one spinning electrode (1) according to the invention.
In addition, the invention relates to a method for producing nanofibers by electrospinning of a polymer solution or melt, which is based on using the spinning electrode according to the invention.
D04H 1/728 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by electro-spinning
D01D 5/00 - Formation of filaments, threads, or the like
B82Y 40/00 - Manufacture or treatment of nanostructures
35.
Linear fibrous formation with a coating of polymeric nanofibers enveloping a supporting linear formation constituting a core, a method and a device for producing it
A method, system, and resulting linear fibrous formation are provided wherein a supporting linear formation defines a core that is transported through a spinning chamber. A coating of polymeric nanofibers enveloping the supporting linear formation in the spinning chamber. The coating of polymeric nanofibers comprises a flat stripe wound around the core into a helical form, the flat stripe created from a hollow electrically neutral nanofibrous plume generated in a spinning space above a spinning electrode during spinning by AC electric voltage in the spinning chamber.
D01H 4/28 - Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from sliversPiecing arrangements thereforCovering endless core threads with fibres by open-end spinning techniques using electrostatic fields
D01F 6/46 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polyolefins
D01F 6/30 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds comprising olefins as the major constituent
The present invention relates to a mucoadhesive carrier or drug delivery system, which comprises nanoscaffold having a nanofibrous layer with a thickness of from 0.1 to 1000 µm, carrying the active substance in the form of particles. The mucoadhesive layer, in at least a part of its surface, overlaps the nanoscaffold so that it can adhere to the mucosa. A process for its preparation (the nanofibres are formed by electrospinning) and its use for delivery of the vaccines and therapeutics to mucosal surfaces is also disclosed.
The polymeric matrix for the preparation of membranes contains a solution of polyethersulfone, N-methyl-2-pyrrolidone and polyvinylpyrrolidone and further an organic additive selected from the group consisting of 1-([1,2,4]triazolo[1,5-c]quinazoline-2-ylthio)-3-(2-methoxyphenoxy) propan-2-ol, potassium 2-(furan-3-yl)-[1,2,4]triazolo[1,5-c]quinazoline-5-thiolate, 1-(4-chloro-2-(1H-tetrazol-5-yl)phenyl)-3-(3-(trifluoromethyl)phenyl) urea and 2-(3-(furan-2-yl)-1H-1,2,4-triazol-5-yl) aniline.
METHOD FOR PRODUCING POLYMERIC NANOFIBERS BY ELECTROSPINNING A POLYMER SOLUTION OR MELT, A SPINNING ELECTRODE FOR PERFORMING THE METHOD AND A DEVICE FOR PRODUCING POLYMERIC NANOFIBERS EQUIPPED WITH AT LEAST ONE SUCH SPINNING ELECTRODE
The invention relates to a spinning electrode (1) for producing polymeric nanofibers by electrospinning of a polymer solution or polymer melt, containing an inlet pipe (2) of the polymer solution or melt, which ends on its top face (3), whereby around at least a part of the mouth (20) on the top face of the inlet pipe (2) of the polymer solution or melt is formed a spinning surface (4) rounded downwards below the mouth (20), whereby the spinning surface (4) continues as a collecting surface (6) on the outer surface of the inlet pipe (2) of the polymer solution or melt. The invention also relates to a device for producing nanofibers by electrospinning of a polymer solution or melt, which is equipped with at least one spinning electrode (1) according to the invention. In addition, the invention relates to a method for producing nanofibers by electrospinning of a polymer solution or melt, which is based on using the spinning electrode according to the invention.
The invention relates to a method for winding yarn on a cross-wound bobbin (4) on yarn manufacturing textile machines (2), in which the yarn (2) is drawn off from a yarn production unit by a drawing-off mechanism (1) at a constant speed and the bobbin (4) being wound is set into rotational movement by the contact of its circumference with a driving roller (31). The yarn (2) for traversing is guided only by a traversing groove (71) formed in a traversing roller (7), which forcedly rotates separately from the driving roller (31) of the bobbin and separately from the bobbin (4) being wound. In addition, the invention relates to a device for winding yarn (2) on a cross-wound bobbin on yarn manufacturing textile machines (2) comprising a plurality of workstations situated next to each other, whereby each workstation has a yarn production unit (2), from which the yarn (2) is drawn off by a drawing-off mechanism (1) at a constant speed and through a traversing device it is guided to a winding device (3) comprising a driving roller (31), against which the bobbin (4) being wound abuts at its circumference. The traversing device comprises a traversing roller (7) provided with a traversing groove (71), whose circumference is arranged out of contact with the bobbin (4) being wound and the driving roller (31) of the bobbin.
LINEAR FIBROUS FORMATION WITH A COATING OF POLYMERIC NANOFIBERS ENVELOPING A SUPPORTING LINEAR FORMATION CONSTITUTING A CORE, A METHOD AND A DEVICE FOR PRODUCING IT
The invention relates to a linear fibrous formation with a coating of polymeric nanofibers consisting of a core formed by a supporting linear formation (3) and polymeric nanofibers. The polymeric nanofibers envelop the supporting linear formation (3) constituting a core (31) of the resulting linear fibrous formation (30) with a nanofibrous coating (32) composed of a flat formation created from a nanofibrous plume (6) with an organized structure of nanofibers generated by electro spinning using AC high electric voltage, whereby the nanofibrous coating (32) is wrapped around the core (31) with a helical-shaped stripe. In addition, the invention relates to a method for the production of a linear fibrous formation with a nanofibrous coating containing polymeric nanofibers, whose core is composed of a supporting linear formation (3). On a spinning electrode (5) powered by AC voltage is formed a nanofibrous plume (6), which in the spinning space (41) changes into a flat stripe with an organized structure of nanofibers, which is fed towards the circumference of the supporting linear formation (3) rotating in the spinning space around its own axis and/ or ballooning in the spinning space with at least one anti-node loop, whereby the stripe created from the nanofibrous plume (6) winds around the supporting linear formation, forming a helix around the supporting linear formation (3). The invention also relates to a device for producing a linear fibrous formation.
D01D 5/00 - Formation of filaments, threads, or the like
41.
METHOD FOR PRODUCING A TEXTILE COMPOSITE, ESPECIALLY FOR OUTDOOR APPLICATIONS, WHICH CONTAINS AT LEAST ONE LAYER OF POLYMERIC NANOFIBERS, AND A TEXTILE COMPOSITE PREPARED BY THIS METHOD
The invention relates to a method for producing a textile composite, especially for outdoor applications, which contains at least one layer (2) of polymeric nanofibers deposited on a textile carrier layer (3), in which at least one hydrophobic agent in a liquid or plastic state is applied with plasma spraying to the textile carrier layer (3) after deposition of the layer (2) of polymeric nanofibers and after connecting the two layers by a binder, whereby the hydrophobic agent is applied to the textile carrier layer (3) from the side opposite the side where layer (2) of polymeric nanofibers has been deposited. The invention also relates to a textile composite (1), especially for outdoor applications, which contains a layer (2) of polymeric nanofibers deposited on a textile carrier layer (3), prepared by this method.
D06M 10/02 - Physical treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents or magnetic fieldsPhysical treatment combined with treatment with chemical compounds or elements ultrasonic or sonicCorona discharge
D06M 23/08 - Processes in which the treating agent is applied in powder or granular form
D06N 3/00 - Artificial leather, oilcloth, or like material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
The invention relates to a counter flow enthalpy exchanger (1) having a parallelogram-shaped central part (11), whose ends in the flow direction through the exchanger it is joined by end parts (12, 13), which become narrower in the direction from the central part (11), whereby in order to separate the flow of the heat-transfer medium in the direction from the inner space to the outer space are arranged contour identical and with respect to the flowing medium sealed vapour-permeable lamellae (10) with shaping means for generating turbulent flow, whereby every two adjacent lamellae (10) form one interplate flow channel in the central part (11) one interplate flow channel. The lamella (10) is made as a one-piece self-supporting moulding common to the central part (11) and the end parts (12, 13), whereby it does not have a reinforcing support grid. Two adjacent lamellae (10) form one interplate flow channel in the end part (12, 13), in the walls of which are formed straight protrusions (121, 131) situated in the direction of the heat-transfer medium flow between the central part (11) and corresponding inlet or outlet of this medium.
F24F 3/147 - Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatmentApparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidificationAir-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatmentApparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by dehumidification with both heat and humidity transfer between supplied and exhausted air
F24F 12/00 - Use of energy recovery systems in air conditioning, ventilation or screening
F28D 9/00 - Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
F28D 21/00 - Heat-exchange apparatus not covered by any of the groups
F28F 3/04 - Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
F28F 13/12 - Arrangements for modifying heat transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by creating turbulence, e.g. by stirring, by increasing the force of circulation
43.
MUCOADHESIVE CARRIERS OF PARTICLES, METHOD OF PREPARATION AND USES THEREOF
The present invention relates to a mucoadhesive carrier system, for particles,which comprises nanoscaffold having a nanofibrous layer with a thickness of from 0.1 to 1000 µm, carrying a substance in the form of particles. The mucoadhesive layer,in at least a part of its surface, overlaps the nanoscaffold. A process for its preparation and its use for delivery of the vaccines and therapeutics to mucosal surfaces is also disclosed.
The invention relates to a method of producing a planar formation containing at least one fiber and/or linear formation (10) which is not processable by standard textile technologies in which at first is prepared a longitudinal or transverse basic array (1) of fibers and/or linear formations (10), which contains at least one fiber and/or linear formation (10) which is not processable by standard textile technologies and on at least one side of this basic array (1) of fibers and/or linear formations (10) is applied at least one linear formation (2) of a melt adhesive in a molten state, which partially covers at least two adjacent fibers and/or linear formations (10) and the free space (20) between them, and/or on at least one side of the basic array (1) of fibers and/or linear formation (10) is applied a group of planar formations (10) of a melt adhesive in a molten state, which partially covers at least two adjacent fibers and/or linear formations (10) and the free space (20( between them, whereby after the adhesive stiffens, a planar formation is created, containing at least one fiber and/or linear formation (10) which is not processable by standard textile technologies. The invention further relates to a planar formation prepared according to the present method, as well as to a spatial formation created from this planar formation by spatial shaping.
D04H 3/04 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments in rectilinear paths, e.g. crossing at right angles
D04H 3/12 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with filaments or yarns secured together by chemical or thermo-activatable bonding agents, e.g. adhesives, applied or incorporated in liquid or solid form
The invention relates to a method for production of polymeric nanofibers, in which polymeric nanofibers are created due to the action of force of an electric field on solution or melt of a polymer, which is located on the surface of a spinning electrode, whereby the electric field for electrostatic spinning is created alternately between the spinning electrode (1), to which is supplied alternating voltage, and ions (30, 31) of air and/or gas generated and/or supplied to proximity of the spinning electrode (1), whereby according to the phase of the alternating voltage on the spinning electrode (1) polymeric nanofibers with an electric charge of opposite polarity and/or with segments with an electric charge of opposite polarity are created, which after their creation cluster together under the influence of the electrostatic forces into linear formation in the form of a tow or a band, which moves freely in space in direction of gradient of the electric fields away from the spinning electrode (1). The invention further relates to a linear formation from polymeric nanofibers fabricated by this method.
D01D 5/00 - Formation of filaments, threads, or the like
D04H 1/728 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by electro-spinning
46.
A METHOD AND DEVICE FOR FATIGUE TESTING OF PHOTOCHROMIC, FLUORESCENT OR PHOSPHORESCENT DYES
The invention relates to a method for fatigue testing of photochromic, fluorescent or phosphorescent dye/dyes or of a mixture of at least two of them, in which a sample (3) containing photochromic, fluorescent or phosphorescent dye/dyes or a mixture of at least two of them is exposed to a predetermined number of cycles of luminous exposure to an excitation light beam (81), which evokes a color response of the photochromic, fluorescent or phosphorescent dye/dyes or of the mixture of at least two of them in the sample (3). Before and/or during and/or after each predetermined exposure to the excitation light beam (81), the sample (3) containing the photochromic, fluorescent or phosphorescent dye/dyes or of the mixture of at least two of them is exposed at least once to irradiation by an exposure light beam (71), due to which the dye/dyes is/are subject to fatigue loading. Simultaneously, a measuring light beam (41) is introduced to the sample (3) and is reflected from it, whereby the change and/or the course of the change in the characteristics of the measuring light beam (41) reflected from the sample is monitored by a spectrometer (94). From this change and/or the course of the change it is possible to deduce the course of the color response and/or the change in the color response of the particular photochromic, fluorescent or phosphorescent dye/dyes or of the mixture of at least two of them in the sample (3) to the exposure to an excitation light beam (81) and thus it is possible to deduce the fatigue of this photochromic, fluorescent or phosphorescent dye/dyes or of the mixture of at least two of them. The invention also relates to a device for carrying out this method.
The invention relates to a sound absorbing means which comprises at least one acoustic resonance membrane (1) formed by a layer of polymeric nanofibers which is fixedly attached to a frame (2, 20).
Method of manipulation with samples of biological material, especially for molecular diagnostics or for isolation of nucleic acids and from them possible consequent detection of a certain genome, for example a pathogenic one, and/or diagnostics of genetically determined diseases of living organisms. The sample of biological material at the beginning of the process is inserted into the loading chamber (11) of the device for manipulation with samples of biological material, into whose storage chambers (12) all reagent chemicals necessary for the respective process separately one from another were deposited still before, while the following phases of the process are running inside the device without a direct manipulation of operating person with reagent chemicals, which are gradually mixed and react, at the same time the unwilling residues from reactions are deposited into the waste chamber (41), which is also situated inside the manipulation device and it is safely separated from other areas of the device, operating persons as well as environment.
The invention relates to a sound absorbing means containing at least one cavity resonator, on whose at least one surface is fixedly attached a resonant membrane (5), which overlaps an orifice /orifices (41) leading into the cavity/cavities (1 ) of the cavity resonator.
G10K 11/172 - Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using resonance effects
50.
METHOD FOR PRODUCTION OF POLYMERIC NANOFIBERS BY SPINNING OF SOLUTION OR MELT OF POLYMER IN ELECTRIC FIELD, AND A LINEAR FORMATION FROM POLYMERIC NANOFIBERS PREPARED BY THIS METHOD
The invention relates to a method for production of polymeric nanofibers, in which polymeric nanofibers are created due to the action of force of an electric field on solution or melt of a polymer, which is located on the surface of a spinning electrode, whereby the electric field for electrostatic spinning is created alternately between the spinning electrode (1), to which is supplied alternating voltage, and ions (30, 31) of air and/or gas generated and/or supplied to proximity of the spinning electrode (1), whereby according to the phase of the alternating voltage on the spinning electrode (1) polymeric nanofibers with an electric charge of opposite polarity and/or with segments with an electric charge of opposite polarity are created, which after their creation cluster together under the influence of the electrostatic forces into linear formation in the form of a tow or a band, which moves freely in space in direction of gradient of the electric fields away from the spinning electrode (1). The invention further relates to a linear formation from polymeric nanofibers fabricated by this method.
The invention relates to an actively light-emitting safety element, which comprises a side-emitting optical fiber (1), connected by at least one of it ends to a source of light. At least the radiating surface of the optical fiber (1) is embedded in a textile sheath (10), whereby the light emitted by the source of light is radiated by the optical fiber (1) into the surrounding environment through the textile sheath (10).
D03D 11/02 - Fabrics formed with pockets, tubes, loops, folds, tucks or flaps
D03D 15/00 - Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
F21V 8/00 - Use of light guides, e.g. fibre optic devices, in lighting devices or systems
52.
NANOFIBER STRUCTURE WITH IMMOBILIZED ORGANIC AGENS AND THE METHOD OF ITS PREPARATION
The invention concerns a nanofiber structure with immobilized organic agens that consists of silica nanofibers whose surface was modified with aminoaikyialkoxysilane and of subsequently immobilized organic agens. The invention also concerns a method of preparation of the nanofiber structure with immobilized organic agens, while silica nanofibers are prepared by electrostatic spinning from the initial sol synthesized by a sol-gel method from tetraalkoxysilane, heat-treated and their the surface modified by a solution of aminoaikyialkoxysilane and organic agens is then immobilized on the modified surface of the nanofibers.
A61K 47/48 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers, inert additives the non-active ingredient being chemically bound to the active ingredient, e.g. polymer drug conjugates
D01D 5/00 - Formation of filaments, threads, or the like
A61L 26/00 - Chemical aspects of, or use of materials for, liquid bandages
53.
ANTIBACTERIAL LAYER ACTIVE AGAINST PATHOGENIC BACTERIA, PARTICULARLY AGAINST THE MRSA BACTERIAL STRAIN, AND THE METHOD OF ITS PRODUCTION
The invention concerns an antibacterial layer active against pathogenic bacteria, particularly against the MRSA bacterial strain, composed of the hybrid polymer of 3-(trialkoxysilyl)propyl methacrylate and titanium(IV) alkoxide, with an addition of soluble silver, copper and zinc salts, and possibly also with an addition of titanium dioxide nanoparticles. The hybrid polymer may also include an addition of soluble chromium(lll) and/or vanadium salts, or up to 90 mol.% of 3-(trialkoxysilyl)propyl methacrylate may be replaced with an equimolar mixture of methyl methacrylate and tetraalkoxysilane. Furthermore, the invention concerns the production of an antibacterial layer active against pathogenic bacteria, particularly against the MRSA bacterial strain, by applying the sol, prepared using a sol-gel method, to the substrate surface, and by subsequent polymerization of the layer. The sol is made of 3- (trialkoxysilyl)propyl methacrylate, titanium(IV) alkoxide, soluble silver, copper and zinc salts, a radical catalyst of polymerization, alcohol as the solvent, water and nitric acid as the catalyst of polycondensation of the inorganic part of the hybrid grid so that the molar ratio of 3-(trialkoxysilyl)propyl methacrylate and titanium(IV) alkoxide in the reaction mixture is 95:5 to 50:50; the content of silver, copper and zinc compounds (converted to metals in dry mass) was Ag 0.1 to 5 %w, Cu 0.1 to 10 %w, and Zn 0.1 to 5 %w; content of the radical catalyst of polymerization was 0.2 to 10 %w per dry mass weight, and the molar ratio of water content k = [H2O]/[alkylalkoxysilane + titanium(IV) alkoxide] was in the range from 1.6 to 2.8, while upon application and evaporation of the solvent, the sol is polymerized using heat at 80 °C to 200 °C for 30 min to 6 hours or by photoinitiated polymerization for 1 s to 3 hours.
METHOD OF INCREASING HYDROPHOBIC PROPERTIES OF PLANAR LAYER OF POLYMERIC NANOFIBRES, A LAYER OF POLYMERIC NANOFIBRES WITH INCREASED HYDROPHOBIC PROPERTIES, AND A LAYERED TEXTILE COMPOSITE CONTAINING SUCH LAYER
The invention relates to a method of increasing hydrophobic properties of planar layer of polymeric nanofibres, by which a hydrophobic agent is applied to surface of the layer or into its entire structure, while during application of the hydrophobic agent is on the layer of polymeric nanofibres acted from at least one side by at least one supporting air stream and/or after application of the hydrophobic agent is on the layer of polymeric nanofibres acted from at least one side by an air stream, which removes the hydrophobic agent from the surface of the layer of polymeric nanofibres on this respective side of it into the inter-fibrous spaces in its inner structure. During and/or after that, is on the layer of polymeric nanofibres acted by increased temperature, which is lower than the melting temperature of the polymer of the nanofibres, as a result of which the hydrophobic agent contained in it dries out and coagulates, whereby at least some inter-fibrous spaces of the layer of polymeric nanofibres are entirely filled up with the hydrophobic agent in solid state and the polymeric nanofibres get fixed against mutual slipping. The invention also relates to a planar layer of polymeric nanofibres, the hydrophobic properties of which was increased by the described method, as well as to a textile composite containing such layer of polymeric nanofibres.
D06M 23/10 - Processes in which the treating agent is dissolved or dispersed in organic solventsProcesses for the recovery of organic solvents thereof
D06N 3/00 - Artificial leather, oilcloth, or like material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
B32B 38/00 - Ancillary operations in connection with laminating processes
Means of filtration and/or sorption comprising a carbon sorbent, which is dispersed in interfibre spaces of voluminous fabric created of intimate fibrous mixture of staple basic fibres (1) and bicomponent fibres (2), by which the staple basic fibres (1 ) of voluminous fabric are interconnected and kept in desired position, and by means of bicomponent fibres (2) also some particles of carbon sorbent are partially fixed, whereas the voluminous fabric is enclosed in a wrapping (4) comprising a layer (42) of nanofibres arranged between two layers (41) of protective fabric.
B01J 20/28 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof characterised by their form or physical properties
B01D 39/20 - Other self-supporting filtering material of inorganic material, e.g. asbestos paper or metallic filtering material of non-woven wires
A62D 9/00 - Composition of chemical substances for use in breathing apparatus
A62B 23/00 - Filters for breathing-protection purposes
56.
METHOD AND DEVICE FOR BINDING OF FISH-BAIT AND A FISH-BAIT
The invention concerns a fish-bait binding method, wherein a thread (51) is pulled through the centre of a bait and loose ends of the thread are connected on the outer side of the bait and are shortened to proper length. Loose ends of the thread (51) with a welding component are connected on the outer side of the bait by twisting the loose ends of the thread (51) together and subsequently exposing the twisted section of the loose ends of the thread (51) to heat. The invention also concerns a fish-bait binding device, which contains separable main hook (3) grips (30), which are set in a workspace (P) of the device, and which are put together rotatingly around a common axis. The grips (30) are equipped with a thread (51) welding device (9) with an electrically- heated welding needle (90), while the thread (51) is a thread (51) containing a welding component. The invention also concerns a fish -bait equipped with a thread loop with ends twisted on the outer side of the bait and thermally joint.
The invention relates to the travelling vehicle wheel (10, 30, 40, 70) for driving on a road and/or in a terrain, whose rolling surface is formed of circumferential segments (1) following one after another, which in the body (16, 37, 45, 71) of travelling wheel (10, 30, 40, 70) are arranged displaceably between the position for riding on a road and the terrain position. In the terrain position the individual circumferential segments (1) are deflected from circumferential direction of the travelling wheel (10, 30, 40, 70), whereas between the circumferential segments (1) in direction of circumference of the travelling wheel (10, 30, 40, 70) there are gaps interrupting the rolling surface of the travelling wheel (10, 30, 40, 70).
The invention relates to the method of spindle spinning or twisting, at which the yarn or thread is wound on a cylindric tube mounted on rotating spindle (6) into a package in the form of a cop (8), especially the method of spindle spinning or twisting by a system with open loop, or by means of a ring and traveller utilising a rotating balloon limiter (15), whose inner surface serves for contact with yarn or thread, or method of spindle spinning or twisting by means of a cap. The yarn or thread is wound on the tube in direction from the top to the bottom, while the already finished section of package gradually inserts into the rotating cover of package.
The invention relates to a linear fibre formation comprising nanofibres deposited on a linear fibre core, at the same time the nanofibres are to the core fixed with a coil of at least one covering thread. The invention further relates to a method and a device for production of a linear fibre formation comprising a linear fibre core, on which in a spinning space of an electric field of high intensity the nanofibres produced through electrostatic spinning of polymer matrix are deposited. Through the spinning space of the electric field at least two straight segments of the linear fibre core are guided, between which the core outside the spinning space of electric field is guided at least along a section of circumference of the guiding cylinder, while in projection into a plane being tangential to circumference of the guiding cylinder and passing the respective segment of the core, this segment of the core and longitudinal axis of the guiding cylinder contain an acute angle.
The invention relates to the suspension (1, 6, 7, 8, 9) of the wheel (3) of vehicle, especially of vehicle for rough terrain driving, comprising the helical spring (11, 65, 71, 81, 91) arranged between two members of suspension (1, 6, 7, 8, 9) of the wheel (3). Hereat one end of the spring (11, 65, 71, 81) is coupled with moveable member (2) of suspension (1, 6, 7, 8) of the wheel (3), and the second end of spring (11, 65, 71, 81) is coupled with the controlled member (102) of rolling kinematic couple, whose rolling surface engages with convex rolling surface (5) of controlling member (101) of rolling kinematic couple, which is mounted on the basic member (4) of suspension (1, 6, 7, 8) of the wheel (3). Or one end of the spring (91) is coupled with the basic member (4) of suspension (9) of the wheel (3), and the second end of the spring (91) is coupled with the controlled member (102) of rolling kinematic couple, whose rolling surface engages with convex rolling surface (5) of the controlling member (101) of the rolling kinematic couple, which is mounted on the moveable member (2) of suspension (9) of the wheel (3).
B60G 11/16 - Resilient suspensions characterised by arrangement, location, or kind of springs having helical, spiral, or coil springs only characterised by means specially adapted for attaching the spring to axle or sprung part of the vehicle
61.
COLLECTING ELECTRODE OF THE DEVICE FOR PRODUCTION OF NANOFIBRES THROUGH ELECTROSTATIC SPINNING OF POLYMER MATRICES, AND DEVICE COMPRISING THIS COLLECTING ELECTRODE
The invention relates to the collecting electrode (5) of the device for production of nanofibres through electrostatic spinning of polymer matrices, whose principle consists in that it comprises system of singular electric charges. The invention further relates to the device for production of nanofibres through electrostatic spinning of polymer matrices in electrostatic spinning field between the collecting electrode (5) and at least one spinning electrode (4), whose principle consists in that, it comprises the collecting electrode (5) comprising system of singular electric charges.
USTAV EXPERIMENTALNI MEDICINY AV CR, v.v.i. (Czech Republic)
USTAV MAKROMOLEKULARNI CHEMIE AV CR, v.v.i. (Czech Republic)
TECHNICKA UNIVERZITA V LIBERCI (Czech Republic)
Inventor
Lesny, Petr
Sykova, Eva
Michalek, Jiri
Pradny, Martin
Jirsak, Oldrich
Martinova, Lenka
Abstract
The invention relates to a biomaterial based on nanofibrillar layers, which consists of at least one nanofibrillar layer and living cells firmly connected with this nanofibrillar layer, wherein the nanofibrillar layer is formed by synthetic polymers or co-polymers of monomers selected from the group comprising methacrylic acid esters, methacrylic acid amides, poly urethanes, polyvinyl alcohols and polymers derived from lactic acid and its derivatives, and to a method of preparation thereof.
The invention relates to method of yarn traversing upon yarn winding on a bobbin (7) with cheese package at which the yarn is wound on a bobbin with forced rotation (7), while the yarn passes through the traversing guide mounted on the traversing element (1), which moves reversibly between the left and right dead centre. The traversing element (1) is subject to acting of the draw bar (2) on rotatably mounted main crank (3), whose angle speed by means of a rotating electronic controllable drive (4) controlled by a control device (5) upon movement of the traversing element (1) from one dead centre to the second dead centre continuously slows down or accelerates in a direct dependence on a required angle value of yarn crossing on a bobbin being wound (7) and/or in a direct dependence on a position of traversing element (1), through which the required angle of yarn crossing on the bobbin being wound (7) and/or required course of speed of motion of the traversing element (1) is achieved. The invention also relates to the device for yarn traversing upon yarn winding on a bobbin (7) with cheese package, at which the yarn is wound on a bobbin with forced rotation (7), while the yarn passes through the traversing guide (6) mounted on the traversing element (1), which moves reversibly between the left and right dead centre. To the traversing element (1) by its one end there is rotatably connected a draw bar (2) whose second end is rotatably connected with the rotatably mounted main crank (3) coupled with the movable section of the electronic controllable rotation drive (4) coupled with the control device (5).
A method of nanofibers production from a polymer solution uses electrostatic spinning in an electric field created by a potential difference between a charged electrode and a counter electrode. The polymer solution for spinning is supplied into the electric field using the surface of a rotating charged electrode. On a part of the circumference of the charged electrode near to the counter electrode, a spinning surface is created for attaining a high spinning capacity. In a device for carrying out the method, the charged electrode is pivoted and part of its circumference is immersed in the polymer solution. The free part of the circumference of the charged electrode is positioned opposite the counter electrode.
