Patent
US 10,971,281CONDUCTING POLYMER COMPOSITE CONTAINING ULTRA-LOW LOADING OF GRAPHENE
Yi-jun Lin, Bor Z. Jang
US
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Atlas literature
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US 10,971,281Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 A flow chart showing the most commonly used prior art process of producing highly oxidized NGPs that entails tedious chemical oxidation/intercalation, …
FIG. 2 A flow chart showing the presently invented two-step process for producing graphene- polymer composites.
FIG. 3 A flow chart showing the presently invented process for producing graphene sheet-coated polymer particles via a continuous ball mill.
FIG. 4(A) Transmission electron micrograph of graphene sheets produced by conventional Hummer's route (much smaller graphene sheets, but comparable thickness).
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
(Currently Amended) A polymer matrix composite containing graphene sheets homogeneously dispersed in a polymer matrix wherein said polymer matrix composite exhibits a percolation threshold from 0.0001% to 0.1% by volume of graphene sheets to form a 3D network of interconnected graphene sheets or network of electron-conducting pathways, wherein said polymer matrix exhibits an impact strength E. and said polymer matrix composite exhibits an impact strength E,, and wherein E/E is from 1.2 to 20. Currently amended
The polymer matrix composite of claim 1, wherein said polymer matrix composite exhibits an electrical conductivity from 10 -8 S/m to 2000 S/m when measured under the condition that said polymer matrix contains no other additive or reinforcement material than graphene sheets. Original
The polymer matrix composite of claim 1, wherein said polymer matrix composite, when made to contain 0.1% by volume of graphene sheets, has a room temperature electrical conductivity no less than 10-6 S/m. Currently amended
The polymer matrix composite of claim 1, wherein said polymer matrix comprises a thermoplastic resin selected from polyethylene, polypropylene, polybutylene, polyvinyl chloride, poly(vinylidene fluoride), poly(tetrafluoroethylene), polyamide, polyimide, polyetherimide, polyethylene terephthalate, polybutylene terephthalate, polyphenylene sulfide, polyphenylene oxide, polysulfone, polyether sulfone, polybenzimidazole, polyvinyl acetate, polyvinyl alcohol, polycarbonate, polystyrene, poly(acrylonitrile-butadiene-styrene), poly (lactic acid), polyacrylate, poly(acrylate amide), poly(methyl methacrylate), polyoxymethylene, polyvinyl pyrrolidone, polyacrylic acid, a copolymer thereof, or a combination thereof. Currently amended
The polymer matrix composite of claim 1, wherein said polymer matrix further comprises an additive, filler, or reinforcement material dispersed therein. Original
The polymer matrix composite of claim 1, wherein said graphene sheets comprise pristine graphene, graphene fluoride, graphene chloride, graphene bromide, graphene iodide, nitrogenated graphene, hydrogenated graphene, doped graphene, chemically functionalized graphene, or a combination thereof, wherein said pristine graphene does not include CVD graphene. Currently amended
A method of producing the polymer matrix composite of claim 1, said method comprising: (a) mixing multiple particles of a graphitic material and multiple particles of a solid polymer material to form a mixture in an impacting chamber of an energy impacting apparatus; (b) operating said energy impacting apparatus with a frequency and an intensity for a length of time sufficient for peeling off graphene sheets from said graphitic material and transferring said graphene sheets to surfaces of said solid polymer material particles to produce graphene-coated solid polymer particles inside said impacting chamber; and (c) heating and consolidating said graphene-coated solid polymer particles to produce said polymer matrix composite. Withdrawn
Canceled
A polymer matrix composite containing graphene sheets homogeneously dispersed in a polymer matrix wherein said polymer matrix composite exhibits a percolation threshold from 0.0001% to. 0.1 % by volume of graphene sheets to form a 3D network of interconnected graphene sheets or network of electron-conducting pathways and wherein said graphene sheets are selected from the group consisting of pristine graphene, graphene fluoride, graphene chloride, graphene bromide, graphene iodide, nitrogenated graphene, hydrogenated graphene, doped graphene, chemically functionalized graphene, or a combination thereof and wherein said graphene sheets do not include CVD graphene, graphene oxide (GO), and reduced graphene oxide (RGO) and said polymer matrix contains a thermoplastic resin selected from polyethylene, polypropylene, polybutylene, poly(tetrafluoroethylene), polyamide, polyimide, polyetherimide, polyethylene terephthalate, polybutylene terephthalate, polyphenylene sulfide, polyphenylene oxide, polysulfone, polyether sulfone, polybenzimidazole, polyvinyl acetate, polyvinyl alcohol, polycarbonate, polystyrene, poly(acrylonitrile-butadiene-styrene), poly (lactic acid), polyacrylate, poly(acrylate amide), poly(methyl methacrylate), polyoxymethylene, polyvinyl pyrrolidone, polyacrylic acid, a copolymer thereof, or a combination thereof. Currently amended
Layer stacks claimed or described, ordered top of device to substrate.
polymer matrix composite
Materials described outside the worked examples.
graphene sheets
thermoplastic polymer matrix
chemically functionalized graphene
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 4(A) Transmission electron micrograph of graphene sheets produced by conventional Hummer's route (much smaller graphene sheets, but comparable thickness).
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
percolation threshold (vol% graphene) | 0.0001–0.1 vol% | graphene sheets |
Ec/Ep impact strength ratio (composite vs. neat polymer) | 1.2–20 dimensionless |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,971,281Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 A flow chart showing the most commonly used prior art process of producing highly oxidized NGPs that entails tedious chemical oxidation/intercalation, …
FIG. 2 A flow chart showing the presently invented two-step process for producing graphene- polymer composites.
FIG. 3 A flow chart showing the presently invented process for producing graphene sheet-coated polymer particles via a continuous ball mill.
FIG. 4(A) Transmission electron micrograph of graphene sheets produced by conventional Hummer's route (much smaller graphene sheets, but comparable thickness).
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
(Currently Amended) A polymer matrix composite containing graphene sheets homogeneously dispersed in a polymer matrix wherein said polymer matrix composite exhibits a percolation threshold from 0.0001% to 0.1% by volume of graphene sheets to form a 3D network of interconnected graphene sheets or network of electron-conducting pathways, wherein said polymer matrix exhibits an impact strength E. and said polymer matrix composite exhibits an impact strength E,, and wherein E/E is from 1.2 to 20. Currently amended
The polymer matrix composite of claim 1, wherein said polymer matrix composite exhibits an electrical conductivity from 10 -8 S/m to 2000 S/m when measured under the condition that said polymer matrix contains no other additive or reinforcement material than graphene sheets. Original
The polymer matrix composite of claim 1, wherein said polymer matrix composite, when made to contain 0.1% by volume of graphene sheets, has a room temperature electrical conductivity no less than 10-6 S/m. Currently amended
The polymer matrix composite of claim 1, wherein said polymer matrix comprises a thermoplastic resin selected from polyethylene, polypropylene, polybutylene, polyvinyl chloride, poly(vinylidene fluoride), poly(tetrafluoroethylene), polyamide, polyimide, polyetherimide, polyethylene terephthalate, polybutylene terephthalate, polyphenylene sulfide, polyphenylene oxide, polysulfone, polyether sulfone, polybenzimidazole, polyvinyl acetate, polyvinyl alcohol, polycarbonate, polystyrene, poly(acrylonitrile-butadiene-styrene), poly (lactic acid), polyacrylate, poly(acrylate amide), poly(methyl methacrylate), polyoxymethylene, polyvinyl pyrrolidone, polyacrylic acid, a copolymer thereof, or a combination thereof. Currently amended
The polymer matrix composite of claim 1, wherein said polymer matrix further comprises an additive, filler, or reinforcement material dispersed therein. Original
The polymer matrix composite of claim 1, wherein said graphene sheets comprise pristine graphene, graphene fluoride, graphene chloride, graphene bromide, graphene iodide, nitrogenated graphene, hydrogenated graphene, doped graphene, chemically functionalized graphene, or a combination thereof, wherein said pristine graphene does not include CVD graphene. Currently amended
A method of producing the polymer matrix composite of claim 1, said method comprising: (a) mixing multiple particles of a graphitic material and multiple particles of a solid polymer material to form a mixture in an impacting chamber of an energy impacting apparatus; (b) operating said energy impacting apparatus with a frequency and an intensity for a length of time sufficient for peeling off graphene sheets from said graphitic material and transferring said graphene sheets to surfaces of said solid polymer material particles to produce graphene-coated solid polymer particles inside said impacting chamber; and (c) heating and consolidating said graphene-coated solid polymer particles to produce said polymer matrix composite. Withdrawn
Canceled
A polymer matrix composite containing graphene sheets homogeneously dispersed in a polymer matrix wherein said polymer matrix composite exhibits a percolation threshold from 0.0001% to. 0.1 % by volume of graphene sheets to form a 3D network of interconnected graphene sheets or network of electron-conducting pathways and wherein said graphene sheets are selected from the group consisting of pristine graphene, graphene fluoride, graphene chloride, graphene bromide, graphene iodide, nitrogenated graphene, hydrogenated graphene, doped graphene, chemically functionalized graphene, or a combination thereof and wherein said graphene sheets do not include CVD graphene, graphene oxide (GO), and reduced graphene oxide (RGO) and said polymer matrix contains a thermoplastic resin selected from polyethylene, polypropylene, polybutylene, poly(tetrafluoroethylene), polyamide, polyimide, polyetherimide, polyethylene terephthalate, polybutylene terephthalate, polyphenylene sulfide, polyphenylene oxide, polysulfone, polyether sulfone, polybenzimidazole, polyvinyl acetate, polyvinyl alcohol, polycarbonate, polystyrene, poly(acrylonitrile-butadiene-styrene), poly (lactic acid), polyacrylate, poly(acrylate amide), poly(methyl methacrylate), polyoxymethylene, polyvinyl pyrrolidone, polyacrylic acid, a copolymer thereof, or a combination thereof. Currently amended
Layer stacks claimed or described, ordered top of device to substrate.
polymer matrix composite
Materials described outside the worked examples.
graphene sheets
thermoplastic polymer matrix
chemically functionalized graphene
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 4(A) Transmission electron micrograph of graphene sheets produced by conventional Hummer's route (much smaller graphene sheets, but comparable thickness).
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
percolation threshold (vol% graphene) | 0.0001–0.1 vol% | graphene sheets |
Ec/Ep impact strength ratio (composite vs. neat polymer) | 1.2–20 dimensionless |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,971,281Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 A flow chart showing the most commonly used prior art process of producing highly oxidized NGPs that entails tedious chemical oxidation/intercalation, …
FIG. 2 A flow chart showing the presently invented two-step process for producing graphene- polymer composites.
FIG. 3 A flow chart showing the presently invented process for producing graphene sheet-coated polymer particles via a continuous ball mill.
FIG. 4(A) Transmission electron micrograph of graphene sheets produced by conventional Hummer's route (much smaller graphene sheets, but comparable thickness).
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
(Currently Amended) A polymer matrix composite containing graphene sheets homogeneously dispersed in a polymer matrix wherein said polymer matrix composite exhibits a percolation threshold from 0.0001% to 0.1% by volume of graphene sheets to form a 3D network of interconnected graphene sheets or network of electron-conducting pathways, wherein said polymer matrix exhibits an impact strength E. and said polymer matrix composite exhibits an impact strength E,, and wherein E/E is from 1.2 to 20. Currently amended
The polymer matrix composite of claim 1, wherein said polymer matrix composite exhibits an electrical conductivity from 10 -8 S/m to 2000 S/m when measured under the condition that said polymer matrix contains no other additive or reinforcement material than graphene sheets. Original
The polymer matrix composite of claim 1, wherein said polymer matrix composite, when made to contain 0.1% by volume of graphene sheets, has a room temperature electrical conductivity no less than 10-6 S/m. Currently amended
The polymer matrix composite of claim 1, wherein said polymer matrix comprises a thermoplastic resin selected from polyethylene, polypropylene, polybutylene, polyvinyl chloride, poly(vinylidene fluoride), poly(tetrafluoroethylene), polyamide, polyimide, polyetherimide, polyethylene terephthalate, polybutylene terephthalate, polyphenylene sulfide, polyphenylene oxide, polysulfone, polyether sulfone, polybenzimidazole, polyvinyl acetate, polyvinyl alcohol, polycarbonate, polystyrene, poly(acrylonitrile-butadiene-styrene), poly (lactic acid), polyacrylate, poly(acrylate amide), poly(methyl methacrylate), polyoxymethylene, polyvinyl pyrrolidone, polyacrylic acid, a copolymer thereof, or a combination thereof. Currently amended
The polymer matrix composite of claim 1, wherein said polymer matrix further comprises an additive, filler, or reinforcement material dispersed therein. Original
The polymer matrix composite of claim 1, wherein said graphene sheets comprise pristine graphene, graphene fluoride, graphene chloride, graphene bromide, graphene iodide, nitrogenated graphene, hydrogenated graphene, doped graphene, chemically functionalized graphene, or a combination thereof, wherein said pristine graphene does not include CVD graphene. Currently amended
A method of producing the polymer matrix composite of claim 1, said method comprising: (a) mixing multiple particles of a graphitic material and multiple particles of a solid polymer material to form a mixture in an impacting chamber of an energy impacting apparatus; (b) operating said energy impacting apparatus with a frequency and an intensity for a length of time sufficient for peeling off graphene sheets from said graphitic material and transferring said graphene sheets to surfaces of said solid polymer material particles to produce graphene-coated solid polymer particles inside said impacting chamber; and (c) heating and consolidating said graphene-coated solid polymer particles to produce said polymer matrix composite. Withdrawn
Canceled
A polymer matrix composite containing graphene sheets homogeneously dispersed in a polymer matrix wherein said polymer matrix composite exhibits a percolation threshold from 0.0001% to. 0.1 % by volume of graphene sheets to form a 3D network of interconnected graphene sheets or network of electron-conducting pathways and wherein said graphene sheets are selected from the group consisting of pristine graphene, graphene fluoride, graphene chloride, graphene bromide, graphene iodide, nitrogenated graphene, hydrogenated graphene, doped graphene, chemically functionalized graphene, or a combination thereof and wherein said graphene sheets do not include CVD graphene, graphene oxide (GO), and reduced graphene oxide (RGO) and said polymer matrix contains a thermoplastic resin selected from polyethylene, polypropylene, polybutylene, poly(tetrafluoroethylene), polyamide, polyimide, polyetherimide, polyethylene terephthalate, polybutylene terephthalate, polyphenylene sulfide, polyphenylene oxide, polysulfone, polyether sulfone, polybenzimidazole, polyvinyl acetate, polyvinyl alcohol, polycarbonate, polystyrene, poly(acrylonitrile-butadiene-styrene), poly (lactic acid), polyacrylate, poly(acrylate amide), poly(methyl methacrylate), polyoxymethylene, polyvinyl pyrrolidone, polyacrylic acid, a copolymer thereof, or a combination thereof. Currently amended
Layer stacks claimed or described, ordered top of device to substrate.
polymer matrix composite
Materials described outside the worked examples.
graphene sheets
thermoplastic polymer matrix
chemically functionalized graphene
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 4(A) Transmission electron micrograph of graphene sheets produced by conventional Hummer's route (much smaller graphene sheets, but comparable thickness).
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
percolation threshold (vol% graphene) | 0.0001–0.1 vol% | graphene sheets |
Ec/Ep impact strength ratio (composite vs. neat polymer) | 1.2–20 dimensionless |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,971,281Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 A flow chart showing the most commonly used prior art process of producing highly oxidized NGPs that entails tedious chemical oxidation/intercalation, …
FIG. 2 A flow chart showing the presently invented two-step process for producing graphene- polymer composites.
FIG. 3 A flow chart showing the presently invented process for producing graphene sheet-coated polymer particles via a continuous ball mill.
FIG. 4(A) Transmission electron micrograph of graphene sheets produced by conventional Hummer's route (much smaller graphene sheets, but comparable thickness).
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
(Currently Amended) A polymer matrix composite containing graphene sheets homogeneously dispersed in a polymer matrix wherein said polymer matrix composite exhibits a percolation threshold from 0.0001% to 0.1% by volume of graphene sheets to form a 3D network of interconnected graphene sheets or network of electron-conducting pathways, wherein said polymer matrix exhibits an impact strength E. and said polymer matrix composite exhibits an impact strength E,, and wherein E/E is from 1.2 to 20. Currently amended
The polymer matrix composite of claim 1, wherein said polymer matrix composite exhibits an electrical conductivity from 10 -8 S/m to 2000 S/m when measured under the condition that said polymer matrix contains no other additive or reinforcement material than graphene sheets. Original
The polymer matrix composite of claim 1, wherein said polymer matrix composite, when made to contain 0.1% by volume of graphene sheets, has a room temperature electrical conductivity no less than 10-6 S/m. Currently amended
The polymer matrix composite of claim 1, wherein said polymer matrix comprises a thermoplastic resin selected from polyethylene, polypropylene, polybutylene, polyvinyl chloride, poly(vinylidene fluoride), poly(tetrafluoroethylene), polyamide, polyimide, polyetherimide, polyethylene terephthalate, polybutylene terephthalate, polyphenylene sulfide, polyphenylene oxide, polysulfone, polyether sulfone, polybenzimidazole, polyvinyl acetate, polyvinyl alcohol, polycarbonate, polystyrene, poly(acrylonitrile-butadiene-styrene), poly (lactic acid), polyacrylate, poly(acrylate amide), poly(methyl methacrylate), polyoxymethylene, polyvinyl pyrrolidone, polyacrylic acid, a copolymer thereof, or a combination thereof. Currently amended
The polymer matrix composite of claim 1, wherein said polymer matrix further comprises an additive, filler, or reinforcement material dispersed therein. Original
The polymer matrix composite of claim 1, wherein said graphene sheets comprise pristine graphene, graphene fluoride, graphene chloride, graphene bromide, graphene iodide, nitrogenated graphene, hydrogenated graphene, doped graphene, chemically functionalized graphene, or a combination thereof, wherein said pristine graphene does not include CVD graphene. Currently amended
A method of producing the polymer matrix composite of claim 1, said method comprising: (a) mixing multiple particles of a graphitic material and multiple particles of a solid polymer material to form a mixture in an impacting chamber of an energy impacting apparatus; (b) operating said energy impacting apparatus with a frequency and an intensity for a length of time sufficient for peeling off graphene sheets from said graphitic material and transferring said graphene sheets to surfaces of said solid polymer material particles to produce graphene-coated solid polymer particles inside said impacting chamber; and (c) heating and consolidating said graphene-coated solid polymer particles to produce said polymer matrix composite. Withdrawn
Canceled
A polymer matrix composite containing graphene sheets homogeneously dispersed in a polymer matrix wherein said polymer matrix composite exhibits a percolation threshold from 0.0001% to. 0.1 % by volume of graphene sheets to form a 3D network of interconnected graphene sheets or network of electron-conducting pathways and wherein said graphene sheets are selected from the group consisting of pristine graphene, graphene fluoride, graphene chloride, graphene bromide, graphene iodide, nitrogenated graphene, hydrogenated graphene, doped graphene, chemically functionalized graphene, or a combination thereof and wherein said graphene sheets do not include CVD graphene, graphene oxide (GO), and reduced graphene oxide (RGO) and said polymer matrix contains a thermoplastic resin selected from polyethylene, polypropylene, polybutylene, poly(tetrafluoroethylene), polyamide, polyimide, polyetherimide, polyethylene terephthalate, polybutylene terephthalate, polyphenylene sulfide, polyphenylene oxide, polysulfone, polyether sulfone, polybenzimidazole, polyvinyl acetate, polyvinyl alcohol, polycarbonate, polystyrene, poly(acrylonitrile-butadiene-styrene), poly (lactic acid), polyacrylate, poly(acrylate amide), poly(methyl methacrylate), polyoxymethylene, polyvinyl pyrrolidone, polyacrylic acid, a copolymer thereof, or a combination thereof. Currently amended
Layer stacks claimed or described, ordered top of device to substrate.
polymer matrix composite
Materials described outside the worked examples.
graphene sheets
thermoplastic polymer matrix
chemically functionalized graphene
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 4(A) Transmission electron micrograph of graphene sheets produced by conventional Hummer's route (much smaller graphene sheets, but comparable thickness).
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
percolation threshold (vol% graphene) | 0.0001–0.1 vol% | graphene sheets |
Ec/Ep impact strength ratio (composite vs. neat polymer) | 1.2–20 dimensionless |
Related documents with shared materials, methods, properties, or citations.
graphitic material
FIG. 4(A) Transmission electron micrograph of graphene sheets produced by conventional Hummer's route (much smaller graphene sheets, but comparable thickness).
electrical conductivity range (no other additives) | 1e-8–2000 S/m | — |
room temperature electrical conductivity at 0.1 vol% graphene | ≥ 0.000001 S/m | — |
Thickness | 1–20 mm | — |
Duration | 900–7200 s | — |
Duration | 1–4 hours | — |
Duration | 5–120 hours | — |
Temperature | 800–1100 °C | — |
Temperature | 950–1050 °C | — |
graphitic material
FIG. 4(A) Transmission electron micrograph of graphene sheets produced by conventional Hummer's route (much smaller graphene sheets, but comparable thickness).
electrical conductivity range (no other additives) | 1e-8–2000 S/m | — |
room temperature electrical conductivity at 0.1 vol% graphene | ≥ 0.000001 S/m | — |
Thickness | 1–20 mm | — |
Duration | 900–7200 s | — |
Duration | 1–4 hours | — |
Duration | 5–120 hours | — |
Temperature | 800–1100 °C | — |
Temperature | 950–1050 °C | — |
graphitic material
FIG. 4(A) Transmission electron micrograph of graphene sheets produced by conventional Hummer's route (much smaller graphene sheets, but comparable thickness).
electrical conductivity range (no other additives) | 1e-8–2000 S/m | — |
room temperature electrical conductivity at 0.1 vol% graphene | ≥ 0.000001 S/m | — |
Thickness | 1–20 mm | — |
Duration | 900–7200 s | — |
Duration | 1–4 hours | — |
Duration | 5–120 hours | — |
Temperature | 800–1100 °C | — |
Temperature | 950–1050 °C | — |
graphitic material
FIG. 4(A) Transmission electron micrograph of graphene sheets produced by conventional Hummer's route (much smaller graphene sheets, but comparable thickness).
electrical conductivity range (no other additives) | 1e-8–2000 S/m | — |
room temperature electrical conductivity at 0.1 vol% graphene | ≥ 0.000001 S/m | — |
Thickness | 1–20 mm | — |
Duration | 900–7200 s | — |
Duration | 1–4 hours | — |
Duration | 5–120 hours | — |
Temperature | 800–1100 °C | — |
Temperature | 950–1050 °C | — |