Abstract

A water-based adhesive for the manufacture of laminated cellulosic boards includes monolayer graphene oxide as a glue enhancer. Laminated cellulosic boards may be obtained by providing cellulosic plies, applying a water-based adhesive, and contacting the surface of another cellulosic ply to the first cellulosic ply. A method for producing the water-based adhesive includes mixing starch, water and glue enhancer. The glue enhancer is a suspension of between 0.1 wt % and 0.001 wt % of monolayer graphene oxide in water.

IPC Classes  ?

• C09J 103/02 - StarchDegradation products thereof, e.g. dextrin
• B32B 7/10 - Interconnection of layers at least one layer having inter-reactive properties
• B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
• B32B 9/06 - Layered products essentially comprising a particular substance not covered by groups comprising such substance as the main or only constituent of a layer, next to another layer of a specific substance of paper or cardboard
• B32B 29/00 - Layered products essentially comprising paper or cardboard
• B32B 29/08 - Corrugated paper or cardboard
• B32B 37/12 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
• C08K 3/04 - Carbon
• C09J 5/00 - Adhesive processes in generalAdhesive processes not provided for elsewhere, e.g. relating to primers
• C09J 11/04 - Non-macromolecular additives inorganic
• C09J 103/04 - Starch derivatives
• D21J 1/00 - Fibreboard

Goods & Services

Chemical products used in industry, agriculture, horticulture and forestry; unprocessed artificial resins, unprocessed plastics; fire extinguishing and fire prevention compounds; metal tempering and soldering preparations; adhesives for industrial use; mastics and other filling paste materials; compost, manures, fertilizers; biological preparations for industry, graphene, graphene oxide, graphene additives for cement, concrete and mortar, water-based adhesives containing graphene.

Abstract

A water-based adhesive for the manufacture of laminated cellulosic boards includes monolayer graphene oxide as a glue enhancer. Laminated cellulosic boards may be obtained by providing cellulosic plies, applying a water-based adhesive, and contacting the surface of another cellulosic ply to the first cellulosic ply. A method for producing the water-based adhesive includes mixing starch, water and glue enhancer. The glue enhancer is a suspension of between 0.1 wt % and 0.001 wt % of monolayer graphene oxide in water.

IPC Classes  ?

• C09J 103/02 - StarchDegradation products thereof, e.g. dextrin
• B32B 7/10 - Interconnection of layers at least one layer having inter-reactive properties
• B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
• B32B 9/06 - Layered products essentially comprising a particular substance not covered by groups comprising such substance as the main or only constituent of a layer, next to another layer of a specific substance of paper or cardboard
• B32B 29/00 - Layered products essentially comprising paper or cardboard
• B32B 29/08 - Corrugated paper or cardboard
• B32B 37/12 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
• C08K 3/04 - Carbon
• C09J 5/00 - Adhesive processes in generalAdhesive processes not provided for elsewhere, e.g. relating to primers
• C09J 11/04 - Non-macromolecular additives inorganic
• C09J 103/04 - Starch derivatives
• D21J 1/00 - Fibreboard

Goods & Services

Chemical preparations used in industry; Chemicals for use in agriculture, horticulture and forestry except fungicides, herbicides, insecticides and parasiticide; unprocessed artificial resins, unprocessed plastics; fire extinguishing and fire prevention compositions; metal tempering and soldering preparations; adhesives for industrial use; Grafting mastic for trees; Filling paste materials, namely, cellulose paste; compost, manures, fertilizers; biological preparations for industry; graphene, graphene oxide, graphene additives for cement, concrete and mortar, water-based adhesives for industrial use containing graphene

Abstract

A sensor (20, 200, 1200, 30) for performing measurements is disclosed. It comprises: a substrate (29, 129, 39); a plurality of graphene field-effect transistors (GFET) (21, 121, 31) deposited on a central area of the substrate (29, 129, 39), the GFETs being disposed forming a first row and a second row of GFETs; at least one source electrode (22, 122, 32) connected to the GFETs (21, 121, 31) through at least one first metal track (23, 123, 33), wherein the at least one source electrode (22, 122, 32) is disposed at the periphery of the substrate (29, 39, 129); at least one drain electrode (24A-24C, 124A-124D, 34) connected to the GFETs (21, 121, 31) through at least one second metal track (25A-25C, 125A-125D, 35), wherein the at least one drain electrode (24A-24C, 124A-124D, 34) is disposed at the periphery of the substrate (29, 39, 129); and at least one gate electrode (26, 26B, 126A-126D, 36) which is not in physical contact with the GFETs, the at least one gate electrode being disposed at least in part at the center of the substrate (29, 39, 129) and between the first row and the second row of GFETs, wherein, in use of the sensor (20, 200, 30), when a sample is deposited in contact with the at least one gate electrode (26, 26B, 126A-126D, 36) and the GFETs (21, 121, 31), the sample allows gating between the at least one gate electrode (26, 26B, 126A-126D, 36) and the GFETs (21, 121, 31), wherein the area of the at least one gate electrode is at least 50 times larger than the area of each GFET.

IPC Classes  ?

• G01N 27/414 - Ion-sensitive or chemical field-effect transistors, i.e. ISFETS or CHEMFETS
• B82Y 15/00 - Nanotechnology for interacting, sensing or actuating, e.g. quantum dots as markers in protein assays or molecular motors

Abstract

2 in situ in situ synthesized from the precursors in the presence of the graphene oxide.

IPC Classes  ?

• B01J 20/22 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising organic material
• B01J 20/20 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbonSolid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising carbon obtained by carbonising processes
• B01J 20/30 - Processes for preparing, regenerating or reactivating
• B01J 20/34 - Regenerating or reactivating
• B01D 53/04 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents

Abstract

The present invention refers to water-based adhesive for the manufacture of laminated cellulosic boards, the adhesive comprising monolayer graphene oxide as a glue enhancer. The invention also refers to laminated cellulosic boards obtained therewith, and methods for production thereof.

IPC Classes  ?

• C09J 103/04 - Starch derivatives
• B32B 29/00 - Layered products essentially comprising paper or cardboard

Abstract

The present invention is directed to a suspension and to a wet powder of reduced graphene oxide (rGO) and an organic solvent, wherein the concentration of the reduced graphene oxide in organic solvent is above 0.3 mg/mL, and wherein the mixture is stable for at least 5 days as measured in a Turbiscan™. The invention further discloses a polymer matrix comprising the rGO of said rGO suspension or wet powder and a polymer, and methods for the preparation of the rGO suspension or wet powder and the polymer matrix.

IPC Classes  ?

• C01B 32/198 - Graphene oxide
• B82Y 30/00 - Nanotechnology for materials or surface science, e.g. nanocomposites
• B82Y 40/00 - Manufacture or treatment of nanostructures
• C01B 32/184 - Preparation
• C08K 3/04 - Carbon
• C08L 57/00 - Compositions of unspecified polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
• C08L 87/00 - Compositions of unspecified macromolecular compounds, obtained otherwise than by polymerisation reactions only involving unsaturated carbon-to-carbon bonds

Abstract

The present invention is directed to a suspension and to a wet powder of reduced graphene oxide (rGO) and an organic solvent, wherein the concentration of the reduced graphene oxide in organic solvent is above 0.3 mg/mL, and wherein the mixture is stable for at least 5 days as measured in a Turbiscan™. The invention further discloses a polymer matrix comprising the rGO of said rGO suspension or wet powder and a polymer, and methods for the preparation of the rGO suspension or wet powder and the polymer matrix.

IPC Classes  ?

• C01B 32/184 - Preparation
• C01B 32/198 - Graphene oxide

Goods & Services

Chemicals used in industry, namely, carbon, resin, graphite and graphene Scientific and technological services, namely, research and design in the field of industrial analysis and chemical processes

Goods & Services

Chemicals used in industry, carbon, resins, graphite and graphene, all the aforesaid for industrial use. Scientific and technological services and research and design relating thereto; industry analysis and research services; Research and development of chemical processes for obtaining chemicals including graphene.

Abstract

A method for obtaining graphene oxide is provided comprising the steps of a) adding an acid and a salt to graphite for obtaining a graphite oxide, and b) exfoliating the graphite oxide by mixing it, wherein the steps a) and b) are carried out simultaneously in a high shear mixer.

IPC Classes  ?

• C01B 31/04 - Graphite

Abstract

Devices and methods for determining the quality thin film materials are disclosed. The thin film materials are provided on substrates forming thin film material structures. The devices comprise a housing, a THz module with a THz source emitter and a THz detector,and a reflective base moveable relative to the THz module and configured to support the thin film material structures. The THz source emitter is configured to irradiate the thin film materials. The THz detector is configured to measure at least one reflection of the irradiation. The device is configured to calculate a parameter indicative of the quality of the thin film material based on said reflection measurements.

IPC Classes  ?

• G01N 21/3581 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using far infrared lightInvestigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using Terahertz radiation
• G01N 21/84 - Systems specially adapted for particular applications