Patent
US 9,868,875Dispersion comprising carbon nanotubes and graphene platelets
Daniel Rudhardt
US
Copyright © 2026 Matter42. All rights reserved.
Patent
Atlas literature
Patent
US 9,868,875Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A dispersion comprising carbon nanotubes and graphene platelets, wherein the mass ratio of carbon nanotubes to graphene platelets is in a range from 5:95 to 75:25. Previously presented
The dispersion as claimed in claim 1, wherein the mass ratio of carbon nanotubes to graphene platelets is in the range from 20:80 to 60:40. Original
The dispersion as claimed in claim 1, wherein the dispersion is an aqueous dispersion. Original
The dispersion as claimed in claim 1, wherein the carbon nanotubes are single-walled and/or multiwalled carbon nanotubes having an average external diameter of from 3 nm to 100 nm and a ratio of length to diameter of 5. Original
The dispersion as claimed in claim 1, wherein the carbon nanotubes are present in nonaggregated form and have an average particle size, expressed as the d s o, of from 0.5 pm to 2 pm. Original
The dispersion as claimed in claim 1, wherein the graphene platelets are from one-layer to one hundred-layer graphene platelets. Original
The dispersion as claimed in claim 1, wherein the total content of carbon nanotubes and graphene platelets is from 1 % by weight to 15% by weight. Original
The dispersion as claimed in claim 1 which further comprises one or more additives selected from the group consisting of Application Serial No. 14/239,331 Atty. Docket No. 2915439-00400 1 alkoxylates, alkylol amides, esters, amine oxides, alkyl polyglucosides, alky l phenols, arylalky l phenols, water-soluble homopolymers, water-soluble random copolymers, water-soluble block copolymers, water-soluble graft polymers, polyvinyl alcohols, copolymers of polyvinyl alcohols and polyvinyl acetates, polyvinylpyrrolidones, cellulose, starch, gelatin, gelatin derivatives, amino acid polymers, polylysine, polyaspartic acid, polyacrylates, polyethylenesulfonates, polystyrenesulfonates, polymethacrylates, condensation products of aromatic sulfonic acids with formaldehyde, naphthalenesulfonates, l ignosu l fonates,copolymers of acrylic monomers, polyethylenimines, polyvinylamines, polyallylamines, poly(2-vinylpyridines), block copolyethers, block copolyethers having polystyrene blocks and/or polydiallyldimethylammonium chloride. Previously presented
The dispersion as claimed in claim 1 having a viscosity at 25 0C of from 2 mPa s to 100 000 mPa s at a shear rate of 1/s. Original
A process for producing a dispersion as claimed in claim 1, which comprises combining carbon nanotubes and graphene platelets in such a way that the mass ratio of carbon nanotubes to graphene platelets in the dispersion is in a range from 5:95 to 75:25. Previously presented
A dispersion as claimed in claim 1 capable of being used as printing ink for producing electrically conductive film. Previously presented
The dispersion as claimed in claim 1, wherein the mass ratio of carbon nanotubes to graphene platelets is in the range from SVG 14239331.08-04-2017.J₅YC₁TQ₉RXEAPX3.CLM.1.svg 0.12 1.23 Black and white Previously presented
The dispersion as claimed in claim 1, wherein the total content of carbon nanotubes and graphene platelets is from 1.5% by weight to 8% by weight. Previously presented
The dispersion as claimed in claim 1, wherein the total content of carbon nanotubes and graphene platelets is from 3% by weight to 6% by weight. Previously presented
1 8. The dispersion as claimed in claim 1 which further comprises a lignosulfonate. Previously presented
The dispersion according to claim 1, wherein platelets is in a range from 20:80 to 30:70. New as claimed in claim 1. Previously presented the mass ratio of carbon nanotubes to graphene
1 2. An electrically conductive film comprising carbon nanotubes and graphene platelets, wherein the mass ratio of carbon nanotubes to graphene platelets is in a range from 5:95 to 75:25. Previously presented
1 3. The film as claimed in claim 12 having a specific conductivity of 7kS/m. Original
1 4. The film as claimed in claim 12 present as electrical conductor track on a substrate. Original
1 9. A printing ink comprising the dispersion
Layer stacks claimed or described, ordered top of device to substrate.
electrically conductive film
Materials described outside the worked examples.
carbon nanotubes
graphene platelets
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Specific Conductivity | 7 kS/m | carbon nanotubesgraphene platelets |
Patent
Atlas literature
Patent
US 9,868,875Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A dispersion comprising carbon nanotubes and graphene platelets, wherein the mass ratio of carbon nanotubes to graphene platelets is in a range from 5:95 to 75:25. Previously presented
The dispersion as claimed in claim 1, wherein the mass ratio of carbon nanotubes to graphene platelets is in the range from 20:80 to 60:40. Original
The dispersion as claimed in claim 1, wherein the dispersion is an aqueous dispersion. Original
The dispersion as claimed in claim 1, wherein the carbon nanotubes are single-walled and/or multiwalled carbon nanotubes having an average external diameter of from 3 nm to 100 nm and a ratio of length to diameter of 5. Original
The dispersion as claimed in claim 1, wherein the carbon nanotubes are present in nonaggregated form and have an average particle size, expressed as the d s o, of from 0.5 pm to 2 pm. Original
The dispersion as claimed in claim 1, wherein the graphene platelets are from one-layer to one hundred-layer graphene platelets. Original
The dispersion as claimed in claim 1, wherein the total content of carbon nanotubes and graphene platelets is from 1 % by weight to 15% by weight. Original
The dispersion as claimed in claim 1 which further comprises one or more additives selected from the group consisting of Application Serial No. 14/239,331 Atty. Docket No. 2915439-00400 1 alkoxylates, alkylol amides, esters, amine oxides, alkyl polyglucosides, alky l phenols, arylalky l phenols, water-soluble homopolymers, water-soluble random copolymers, water-soluble block copolymers, water-soluble graft polymers, polyvinyl alcohols, copolymers of polyvinyl alcohols and polyvinyl acetates, polyvinylpyrrolidones, cellulose, starch, gelatin, gelatin derivatives, amino acid polymers, polylysine, polyaspartic acid, polyacrylates, polyethylenesulfonates, polystyrenesulfonates, polymethacrylates, condensation products of aromatic sulfonic acids with formaldehyde, naphthalenesulfonates, l ignosu l fonates,copolymers of acrylic monomers, polyethylenimines, polyvinylamines, polyallylamines, poly(2-vinylpyridines), block copolyethers, block copolyethers having polystyrene blocks and/or polydiallyldimethylammonium chloride. Previously presented
The dispersion as claimed in claim 1 having a viscosity at 25 0C of from 2 mPa s to 100 000 mPa s at a shear rate of 1/s. Original
A process for producing a dispersion as claimed in claim 1, which comprises combining carbon nanotubes and graphene platelets in such a way that the mass ratio of carbon nanotubes to graphene platelets in the dispersion is in a range from 5:95 to 75:25. Previously presented
A dispersion as claimed in claim 1 capable of being used as printing ink for producing electrically conductive film. Previously presented
The dispersion as claimed in claim 1, wherein the mass ratio of carbon nanotubes to graphene platelets is in the range from SVG 14239331.08-04-2017.J₅YC₁TQ₉RXEAPX3.CLM.1.svg 0.12 1.23 Black and white Previously presented
The dispersion as claimed in claim 1, wherein the total content of carbon nanotubes and graphene platelets is from 1.5% by weight to 8% by weight. Previously presented
The dispersion as claimed in claim 1, wherein the total content of carbon nanotubes and graphene platelets is from 3% by weight to 6% by weight. Previously presented
1 8. The dispersion as claimed in claim 1 which further comprises a lignosulfonate. Previously presented
The dispersion according to claim 1, wherein platelets is in a range from 20:80 to 30:70. New as claimed in claim 1. Previously presented the mass ratio of carbon nanotubes to graphene
1 2. An electrically conductive film comprising carbon nanotubes and graphene platelets, wherein the mass ratio of carbon nanotubes to graphene platelets is in a range from 5:95 to 75:25. Previously presented
1 3. The film as claimed in claim 12 having a specific conductivity of 7kS/m. Original
1 4. The film as claimed in claim 12 present as electrical conductor track on a substrate. Original
1 9. A printing ink comprising the dispersion
Layer stacks claimed or described, ordered top of device to substrate.
electrically conductive film
Materials described outside the worked examples.
carbon nanotubes
graphene platelets
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Specific Conductivity | 7 kS/m | carbon nanotubesgraphene platelets |
Patent
Atlas literature
Patent
US 9,868,875Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A dispersion comprising carbon nanotubes and graphene platelets, wherein the mass ratio of carbon nanotubes to graphene platelets is in a range from 5:95 to 75:25. Previously presented
The dispersion as claimed in claim 1, wherein the mass ratio of carbon nanotubes to graphene platelets is in the range from 20:80 to 60:40. Original
The dispersion as claimed in claim 1, wherein the dispersion is an aqueous dispersion. Original
The dispersion as claimed in claim 1, wherein the carbon nanotubes are single-walled and/or multiwalled carbon nanotubes having an average external diameter of from 3 nm to 100 nm and a ratio of length to diameter of 5. Original
The dispersion as claimed in claim 1, wherein the carbon nanotubes are present in nonaggregated form and have an average particle size, expressed as the d s o, of from 0.5 pm to 2 pm. Original
The dispersion as claimed in claim 1, wherein the graphene platelets are from one-layer to one hundred-layer graphene platelets. Original
The dispersion as claimed in claim 1, wherein the total content of carbon nanotubes and graphene platelets is from 1 % by weight to 15% by weight. Original
The dispersion as claimed in claim 1 which further comprises one or more additives selected from the group consisting of Application Serial No. 14/239,331 Atty. Docket No. 2915439-00400 1 alkoxylates, alkylol amides, esters, amine oxides, alkyl polyglucosides, alky l phenols, arylalky l phenols, water-soluble homopolymers, water-soluble random copolymers, water-soluble block copolymers, water-soluble graft polymers, polyvinyl alcohols, copolymers of polyvinyl alcohols and polyvinyl acetates, polyvinylpyrrolidones, cellulose, starch, gelatin, gelatin derivatives, amino acid polymers, polylysine, polyaspartic acid, polyacrylates, polyethylenesulfonates, polystyrenesulfonates, polymethacrylates, condensation products of aromatic sulfonic acids with formaldehyde, naphthalenesulfonates, l ignosu l fonates,copolymers of acrylic monomers, polyethylenimines, polyvinylamines, polyallylamines, poly(2-vinylpyridines), block copolyethers, block copolyethers having polystyrene blocks and/or polydiallyldimethylammonium chloride. Previously presented
The dispersion as claimed in claim 1 having a viscosity at 25 0C of from 2 mPa s to 100 000 mPa s at a shear rate of 1/s. Original
A process for producing a dispersion as claimed in claim 1, which comprises combining carbon nanotubes and graphene platelets in such a way that the mass ratio of carbon nanotubes to graphene platelets in the dispersion is in a range from 5:95 to 75:25. Previously presented
A dispersion as claimed in claim 1 capable of being used as printing ink for producing electrically conductive film. Previously presented
The dispersion as claimed in claim 1, wherein the mass ratio of carbon nanotubes to graphene platelets is in the range from SVG 14239331.08-04-2017.J₅YC₁TQ₉RXEAPX3.CLM.1.svg 0.12 1.23 Black and white Previously presented
The dispersion as claimed in claim 1, wherein the total content of carbon nanotubes and graphene platelets is from 1.5% by weight to 8% by weight. Previously presented
The dispersion as claimed in claim 1, wherein the total content of carbon nanotubes and graphene platelets is from 3% by weight to 6% by weight. Previously presented
1 8. The dispersion as claimed in claim 1 which further comprises a lignosulfonate. Previously presented
The dispersion according to claim 1, wherein platelets is in a range from 20:80 to 30:70. New as claimed in claim 1. Previously presented the mass ratio of carbon nanotubes to graphene
1 2. An electrically conductive film comprising carbon nanotubes and graphene platelets, wherein the mass ratio of carbon nanotubes to graphene platelets is in a range from 5:95 to 75:25. Previously presented
1 3. The film as claimed in claim 12 having a specific conductivity of 7kS/m. Original
1 4. The film as claimed in claim 12 present as electrical conductor track on a substrate. Original
1 9. A printing ink comprising the dispersion
Layer stacks claimed or described, ordered top of device to substrate.
electrically conductive film
Materials described outside the worked examples.
carbon nanotubes
graphene platelets
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Specific Conductivity | 7 kS/m | carbon nanotubesgraphene platelets |
Patent
Atlas literature
Patent
US 9,868,875Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A dispersion comprising carbon nanotubes and graphene platelets, wherein the mass ratio of carbon nanotubes to graphene platelets is in a range from 5:95 to 75:25. Previously presented
The dispersion as claimed in claim 1, wherein the mass ratio of carbon nanotubes to graphene platelets is in the range from 20:80 to 60:40. Original
The dispersion as claimed in claim 1, wherein the dispersion is an aqueous dispersion. Original
The dispersion as claimed in claim 1, wherein the carbon nanotubes are single-walled and/or multiwalled carbon nanotubes having an average external diameter of from 3 nm to 100 nm and a ratio of length to diameter of 5. Original
The dispersion as claimed in claim 1, wherein the carbon nanotubes are present in nonaggregated form and have an average particle size, expressed as the d s o, of from 0.5 pm to 2 pm. Original
The dispersion as claimed in claim 1, wherein the graphene platelets are from one-layer to one hundred-layer graphene platelets. Original
The dispersion as claimed in claim 1, wherein the total content of carbon nanotubes and graphene platelets is from 1 % by weight to 15% by weight. Original
The dispersion as claimed in claim 1 which further comprises one or more additives selected from the group consisting of Application Serial No. 14/239,331 Atty. Docket No. 2915439-00400 1 alkoxylates, alkylol amides, esters, amine oxides, alkyl polyglucosides, alky l phenols, arylalky l phenols, water-soluble homopolymers, water-soluble random copolymers, water-soluble block copolymers, water-soluble graft polymers, polyvinyl alcohols, copolymers of polyvinyl alcohols and polyvinyl acetates, polyvinylpyrrolidones, cellulose, starch, gelatin, gelatin derivatives, amino acid polymers, polylysine, polyaspartic acid, polyacrylates, polyethylenesulfonates, polystyrenesulfonates, polymethacrylates, condensation products of aromatic sulfonic acids with formaldehyde, naphthalenesulfonates, l ignosu l fonates,copolymers of acrylic monomers, polyethylenimines, polyvinylamines, polyallylamines, poly(2-vinylpyridines), block copolyethers, block copolyethers having polystyrene blocks and/or polydiallyldimethylammonium chloride. Previously presented
The dispersion as claimed in claim 1 having a viscosity at 25 0C of from 2 mPa s to 100 000 mPa s at a shear rate of 1/s. Original
A process for producing a dispersion as claimed in claim 1, which comprises combining carbon nanotubes and graphene platelets in such a way that the mass ratio of carbon nanotubes to graphene platelets in the dispersion is in a range from 5:95 to 75:25. Previously presented
A dispersion as claimed in claim 1 capable of being used as printing ink for producing electrically conductive film. Previously presented
The dispersion as claimed in claim 1, wherein the mass ratio of carbon nanotubes to graphene platelets is in the range from SVG 14239331.08-04-2017.J₅YC₁TQ₉RXEAPX3.CLM.1.svg 0.12 1.23 Black and white Previously presented
The dispersion as claimed in claim 1, wherein the total content of carbon nanotubes and graphene platelets is from 1.5% by weight to 8% by weight. Previously presented
The dispersion as claimed in claim 1, wherein the total content of carbon nanotubes and graphene platelets is from 3% by weight to 6% by weight. Previously presented
1 8. The dispersion as claimed in claim 1 which further comprises a lignosulfonate. Previously presented
The dispersion according to claim 1, wherein platelets is in a range from 20:80 to 30:70. New as claimed in claim 1. Previously presented the mass ratio of carbon nanotubes to graphene
1 2. An electrically conductive film comprising carbon nanotubes and graphene platelets, wherein the mass ratio of carbon nanotubes to graphene platelets is in a range from 5:95 to 75:25. Previously presented
1 3. The film as claimed in claim 12 having a specific conductivity of 7kS/m. Original
1 4. The film as claimed in claim 12 present as electrical conductor track on a substrate. Original
1 9. A printing ink comprising the dispersion
Layer stacks claimed or described, ordered top of device to substrate.
electrically conductive film
Materials described outside the worked examples.
carbon nanotubes
graphene platelets
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Specific Conductivity | 7 kS/m | carbon nanotubesgraphene platelets |
water
H₂O
lignosulfonate
| 3–100 nm |
| — |
water
H₂O
lignosulfonate
| 3–100 nm |
| — |
water
H₂O
lignosulfonate
| 3–100 nm |
| — |
water
H₂O
lignosulfonate
| 3–100 nm |
| — |