Patent
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Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 5, after being dispersed in the water, the graphene composite powder form material has a better dispersing ability. 10 [0181] Example 2 -10 [0182] 0.1 g …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A graphene composite powder form material comprising a plurality of chemical modified graphene materials and a polymer, wherein the polymer is uniformly coated on surfaces of the chemical modified graphene materials, any adjacent chemical modified graphene materials are separated by the polymer, and an apparent density of the graphene composite powder form material is 0.05 g/cm 3 to 0.2 g/cm 3, the graphene composite powder form material is obtained by: preparing a chemical modified graphene slurry having a concentration of 0.1% to 3% by weight, and forming a medium slurry by adding the polymer and micro/nano structure materials to the chemical modified graphene slurry according to a weight ratio of chemical modified graphene materials to the polymer of about 1:0.01 to about 1:100, wherein a weight ratio of the micro/nano structure materials to the graphene materials is 0.1:1 to 5:1; adding a poor solvent into the medium slurry during stirring of the medium slurry, to co- flocculate the chemical modified graphene materials and the polymer to form graphene/polymer flocculation assemblies; filtering the medium slurry to achieve the graphene/polymer flocculation assemblies; and drying the graphene/polymer flocculation assemblies, to achieve the graphene composite powder form material. Currently amended
The graphene composite powder form material of claim 1, wherein each of the plurality of chemical modified graphene materials has a grain shape or a semi-sphere shape with a diameter in a range from 10 m to 300 m. Currently amended
The graphene composite powder form material of claim 1, wherein the polymer is a water soluble high-molecular compound selected from the group consisting of polyvinyl alcohol (PVA), polyethylene glycol (PEG), polyacrylamide (PAM), polyvinyl pyrrolidone (PVP), cellulose acetate (CA), carboxymethylcellulose sodium (CMC), polyglutamic acid, and combinations thereof. Previously presented
The graphene composite powder form material of claim 1, wherein the polymer is an oil soluble high-molecular compound selected from the group consisting of vinylidene fluoride-hexafluoropropylene copolymer (PVDF-HFP), polyvinylidene fluoride (PVDF), polymethyl methacrylate (PMMA), polyacrylic acid sodium resins, ethylene- vinyl alcohol copolymer (EVAL), polyvinyl alcohol (PVA), polyethylene glycol (PEG), polyacrylamide (PAM), polyvinyl pyrrolidone (PVP), cellulose acetate (CA), carboxymethylcellulose sodium (CMC), polyglutamic acid, and combinations thereof. Previously presented
The graphene composite powder form material of claim 1, wherein the poor solvent is selected from the group consisting of water, ethanol, diethyl ether, petroleum ether, cyclohexane, hexane, acetone, and combinations thereof. Previously presented
The graphene composite powder form material of claim 1, wherein the graphene slurry comp ri ses a water soluble graphene slurry or an oil soluble graphene slurry. Previously presented
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Materials described outside the worked examples.
chemical modified graphene
polymer (high-molecular compound)
micro/nano structure materials
polyvinyl alcohol
polyethylene glycol
polyacrylamide
polyvinyl pyrrolidone
cellulose acetate
carboxymethylcellulose sodium
polyglutamic acid
vinylidene fluoride-hexafluoropropylene copolymer
polyvinylidene fluoride
polymethyl methacrylate
polyacrylic acid sodium resins
ethylene-vinyl alcohol copolymer
water
H₂O
ethanol
C₂H₅OH
diethyl ether
petroleum ether
cyclohexane
C₆H₁₂
hexane
C₆H₁₄
acetone
C₃H₆O
graphene composite powder form material
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
apparent density of graphene composite powder form material (claimed range) | 0.05–0.2 g/cm3 | graphene composite powder form material |
apparent density of graphene composite powder form material (minimum from abstract/description) | ≥ 0.02 g/cm3 | graphene composite powder form material |
Temperature | 40–60 °C | — |
Duration | 2–6 hours | — |
Temperature | 30-10 °C | — |
Temperature | 10–10 °C | — |
Temperature | ≥ 150 °C | — |
Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 5, after being dispersed in the water, the graphene composite powder form material has a better dispersing ability. 10 [0181] Example 2 -10 [0182] 0.1 g …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A graphene composite powder form material comprising a plurality of chemical modified graphene materials and a polymer, wherein the polymer is uniformly coated on surfaces of the chemical modified graphene materials, any adjacent chemical modified graphene materials are separated by the polymer, and an apparent density of the graphene composite powder form material is 0.05 g/cm 3 to 0.2 g/cm 3, the graphene composite powder form material is obtained by: preparing a chemical modified graphene slurry having a concentration of 0.1% to 3% by weight, and forming a medium slurry by adding the polymer and micro/nano structure materials to the chemical modified graphene slurry according to a weight ratio of chemical modified graphene materials to the polymer of about 1:0.01 to about 1:100, wherein a weight ratio of the micro/nano structure materials to the graphene materials is 0.1:1 to 5:1; adding a poor solvent into the medium slurry during stirring of the medium slurry, to co- flocculate the chemical modified graphene materials and the polymer to form graphene/polymer flocculation assemblies; filtering the medium slurry to achieve the graphene/polymer flocculation assemblies; and drying the graphene/polymer flocculation assemblies, to achieve the graphene composite powder form material. Currently amended
The graphene composite powder form material of claim 1, wherein each of the plurality of chemical modified graphene materials has a grain shape or a semi-sphere shape with a diameter in a range from 10 m to 300 m. Currently amended
The graphene composite powder form material of claim 1, wherein the polymer is a water soluble high-molecular compound selected from the group consisting of polyvinyl alcohol (PVA), polyethylene glycol (PEG), polyacrylamide (PAM), polyvinyl pyrrolidone (PVP), cellulose acetate (CA), carboxymethylcellulose sodium (CMC), polyglutamic acid, and combinations thereof. Previously presented
The graphene composite powder form material of claim 1, wherein the polymer is an oil soluble high-molecular compound selected from the group consisting of vinylidene fluoride-hexafluoropropylene copolymer (PVDF-HFP), polyvinylidene fluoride (PVDF), polymethyl methacrylate (PMMA), polyacrylic acid sodium resins, ethylene- vinyl alcohol copolymer (EVAL), polyvinyl alcohol (PVA), polyethylene glycol (PEG), polyacrylamide (PAM), polyvinyl pyrrolidone (PVP), cellulose acetate (CA), carboxymethylcellulose sodium (CMC), polyglutamic acid, and combinations thereof. Previously presented
The graphene composite powder form material of claim 1, wherein the poor solvent is selected from the group consisting of water, ethanol, diethyl ether, petroleum ether, cyclohexane, hexane, acetone, and combinations thereof. Previously presented
The graphene composite powder form material of claim 1, wherein the graphene slurry comp ri ses a water soluble graphene slurry or an oil soluble graphene slurry. Previously presented
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Materials described outside the worked examples.
chemical modified graphene
polymer (high-molecular compound)
micro/nano structure materials
polyvinyl alcohol
polyethylene glycol
polyacrylamide
polyvinyl pyrrolidone
cellulose acetate
carboxymethylcellulose sodium
polyglutamic acid
vinylidene fluoride-hexafluoropropylene copolymer
polyvinylidene fluoride
polymethyl methacrylate
polyacrylic acid sodium resins
ethylene-vinyl alcohol copolymer
water
H₂O
ethanol
C₂H₅OH
diethyl ether
petroleum ether
cyclohexane
C₆H₁₂
hexane
C₆H₁₄
acetone
C₃H₆O
graphene composite powder form material
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
apparent density of graphene composite powder form material (claimed range) | 0.05–0.2 g/cm3 | graphene composite powder form material |
apparent density of graphene composite powder form material (minimum from abstract/description) | ≥ 0.02 g/cm3 | graphene composite powder form material |
Temperature | 40–60 °C | — |
Duration | 2–6 hours | — |
Temperature | 30-10 °C | — |
Temperature | 10–10 °C | — |
Temperature | ≥ 150 °C | — |
Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 5, after being dispersed in the water, the graphene composite powder form material has a better dispersing ability. 10 [0181] Example 2 -10 [0182] 0.1 g …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A graphene composite powder form material comprising a plurality of chemical modified graphene materials and a polymer, wherein the polymer is uniformly coated on surfaces of the chemical modified graphene materials, any adjacent chemical modified graphene materials are separated by the polymer, and an apparent density of the graphene composite powder form material is 0.05 g/cm 3 to 0.2 g/cm 3, the graphene composite powder form material is obtained by: preparing a chemical modified graphene slurry having a concentration of 0.1% to 3% by weight, and forming a medium slurry by adding the polymer and micro/nano structure materials to the chemical modified graphene slurry according to a weight ratio of chemical modified graphene materials to the polymer of about 1:0.01 to about 1:100, wherein a weight ratio of the micro/nano structure materials to the graphene materials is 0.1:1 to 5:1; adding a poor solvent into the medium slurry during stirring of the medium slurry, to co- flocculate the chemical modified graphene materials and the polymer to form graphene/polymer flocculation assemblies; filtering the medium slurry to achieve the graphene/polymer flocculation assemblies; and drying the graphene/polymer flocculation assemblies, to achieve the graphene composite powder form material. Currently amended
The graphene composite powder form material of claim 1, wherein each of the plurality of chemical modified graphene materials has a grain shape or a semi-sphere shape with a diameter in a range from 10 m to 300 m. Currently amended
The graphene composite powder form material of claim 1, wherein the polymer is a water soluble high-molecular compound selected from the group consisting of polyvinyl alcohol (PVA), polyethylene glycol (PEG), polyacrylamide (PAM), polyvinyl pyrrolidone (PVP), cellulose acetate (CA), carboxymethylcellulose sodium (CMC), polyglutamic acid, and combinations thereof. Previously presented
The graphene composite powder form material of claim 1, wherein the polymer is an oil soluble high-molecular compound selected from the group consisting of vinylidene fluoride-hexafluoropropylene copolymer (PVDF-HFP), polyvinylidene fluoride (PVDF), polymethyl methacrylate (PMMA), polyacrylic acid sodium resins, ethylene- vinyl alcohol copolymer (EVAL), polyvinyl alcohol (PVA), polyethylene glycol (PEG), polyacrylamide (PAM), polyvinyl pyrrolidone (PVP), cellulose acetate (CA), carboxymethylcellulose sodium (CMC), polyglutamic acid, and combinations thereof. Previously presented
The graphene composite powder form material of claim 1, wherein the poor solvent is selected from the group consisting of water, ethanol, diethyl ether, petroleum ether, cyclohexane, hexane, acetone, and combinations thereof. Previously presented
The graphene composite powder form material of claim 1, wherein the graphene slurry comp ri ses a water soluble graphene slurry or an oil soluble graphene slurry. Previously presented
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Materials described outside the worked examples.
chemical modified graphene
polymer (high-molecular compound)
micro/nano structure materials
polyvinyl alcohol
polyethylene glycol
polyacrylamide
polyvinyl pyrrolidone
cellulose acetate
carboxymethylcellulose sodium
polyglutamic acid
vinylidene fluoride-hexafluoropropylene copolymer
polyvinylidene fluoride
polymethyl methacrylate
polyacrylic acid sodium resins
ethylene-vinyl alcohol copolymer
water
H₂O
ethanol
C₂H₅OH
diethyl ether
petroleum ether
cyclohexane
C₆H₁₂
hexane
C₆H₁₄
acetone
C₃H₆O
graphene composite powder form material
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
apparent density of graphene composite powder form material (claimed range) | 0.05–0.2 g/cm3 | graphene composite powder form material |
apparent density of graphene composite powder form material (minimum from abstract/description) | ≥ 0.02 g/cm3 | graphene composite powder form material |
Temperature | 40–60 °C | — |
Duration | 2–6 hours | — |
Temperature | 30-10 °C | — |
Temperature | 10–10 °C | — |
Temperature | ≥ 150 °C | — |
Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 5, after being dispersed in the water, the graphene composite powder form material has a better dispersing ability. 10 [0181] Example 2 -10 [0182] 0.1 g …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A graphene composite powder form material comprising a plurality of chemical modified graphene materials and a polymer, wherein the polymer is uniformly coated on surfaces of the chemical modified graphene materials, any adjacent chemical modified graphene materials are separated by the polymer, and an apparent density of the graphene composite powder form material is 0.05 g/cm 3 to 0.2 g/cm 3, the graphene composite powder form material is obtained by: preparing a chemical modified graphene slurry having a concentration of 0.1% to 3% by weight, and forming a medium slurry by adding the polymer and micro/nano structure materials to the chemical modified graphene slurry according to a weight ratio of chemical modified graphene materials to the polymer of about 1:0.01 to about 1:100, wherein a weight ratio of the micro/nano structure materials to the graphene materials is 0.1:1 to 5:1; adding a poor solvent into the medium slurry during stirring of the medium slurry, to co- flocculate the chemical modified graphene materials and the polymer to form graphene/polymer flocculation assemblies; filtering the medium slurry to achieve the graphene/polymer flocculation assemblies; and drying the graphene/polymer flocculation assemblies, to achieve the graphene composite powder form material. Currently amended
The graphene composite powder form material of claim 1, wherein each of the plurality of chemical modified graphene materials has a grain shape or a semi-sphere shape with a diameter in a range from 10 m to 300 m. Currently amended
The graphene composite powder form material of claim 1, wherein the polymer is a water soluble high-molecular compound selected from the group consisting of polyvinyl alcohol (PVA), polyethylene glycol (PEG), polyacrylamide (PAM), polyvinyl pyrrolidone (PVP), cellulose acetate (CA), carboxymethylcellulose sodium (CMC), polyglutamic acid, and combinations thereof. Previously presented
The graphene composite powder form material of claim 1, wherein the polymer is an oil soluble high-molecular compound selected from the group consisting of vinylidene fluoride-hexafluoropropylene copolymer (PVDF-HFP), polyvinylidene fluoride (PVDF), polymethyl methacrylate (PMMA), polyacrylic acid sodium resins, ethylene- vinyl alcohol copolymer (EVAL), polyvinyl alcohol (PVA), polyethylene glycol (PEG), polyacrylamide (PAM), polyvinyl pyrrolidone (PVP), cellulose acetate (CA), carboxymethylcellulose sodium (CMC), polyglutamic acid, and combinations thereof. Previously presented
The graphene composite powder form material of claim 1, wherein the poor solvent is selected from the group consisting of water, ethanol, diethyl ether, petroleum ether, cyclohexane, hexane, acetone, and combinations thereof. Previously presented
The graphene composite powder form material of claim 1, wherein the graphene slurry comp ri ses a water soluble graphene slurry or an oil soluble graphene slurry. Previously presented
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Materials described outside the worked examples.
chemical modified graphene
polymer (high-molecular compound)
micro/nano structure materials
polyvinyl alcohol
polyethylene glycol
polyacrylamide
polyvinyl pyrrolidone
cellulose acetate
carboxymethylcellulose sodium
polyglutamic acid
vinylidene fluoride-hexafluoropropylene copolymer
polyvinylidene fluoride
polymethyl methacrylate
polyacrylic acid sodium resins
ethylene-vinyl alcohol copolymer
water
H₂O
ethanol
C₂H₅OH
diethyl ether
petroleum ether
cyclohexane
C₆H₁₂
hexane
C₆H₁₄
acetone
C₃H₆O
graphene composite powder form material
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
apparent density of graphene composite powder form material (claimed range) | 0.05–0.2 g/cm3 | graphene composite powder form material |
apparent density of graphene composite powder form material (minimum from abstract/description) | ≥ 0.02 g/cm3 | graphene composite powder form material |
Temperature | 40–60 °C | — |
Duration | 2–6 hours | — |
Temperature | 30-10 °C | — |
Temperature | 10–10 °C | — |
Temperature | ≥ 150 °C | — |