Patent
US 10,362,673PATTERNED NANO GRAPHENE PLATELET-BASED CONDUCTIVE INKS
Aruna Zhamu
US
Copyright © 2026 Matter42. All rights reserved.
Patent
Atlas literature
Patent
US 10,362,673Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1: Resistivity of various printed patterns from NGP- and CNT-based inks as a function of the number of printing passes. [0018]
FIG. 2: The viscosity of several NGP- and CNT-containing aqueous dispersions or inks over a range of shear rates. [0019]
FIG. 3: The viscosity of several inks containing NGP, CNT, CNT+NGP, and CNT+CB as conductive nano fillers. [0020]
FIG. 4: Thermal conductivity data for NGP- and CNT-based nanocomposites deposited on a solid substrate via inkjet printing.
FIG. 5 in Ref. 1]. By contrast, with the presently invented NGP-based ink that can carry a high NGP proportion, yet still maintaining a relatively low …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
(Withdrawn, Currently Amended) A nano graphene platelet-based conductive ink that i s printable, comprising: (a) pristine nano graphene platelets wherein each of said pristine nano g raphene platelets has never previously been oxidized, comprises a graphene sheet or multiple graphene sheets, and said pristine nano g raphene platelets have an average thickness no greater than 100 nm, and (b) a liquid medium in which said pristine nano graphene platelets are dispersed, wherein said pristine nano graphene platelets occupy a proportion of at least 0.001% by volume based on the total ink volume, and wherein said ink is formulated such that it is capable of being printed in patterns by means of ink jet printing or screen printing. Currently amended
(Withdrawn, Currently Amended) The conductive ink as set forth in Claim 1 wherein said pristine nano g raphene platelets have an average thickness no greater than 1 nm. Currently amended
(Withdrawn, Currently Amended) The conductive ink as set forth in Claim 1 wherein said pristine nano g raphene platelets occupy a proportion of at least 3 % by volume based on the total ink volume. Currently amended
(Withdrawn, Currently Amended) The conductive ink as set forth in Claim 1 wherein said pristine nano g raphene platelets occupy a proportion of at least 10 % by volume based on the total ink volume. Currently amended
(Withdrawn, Currently Amended) The conductive ink as set forth in Claim 1 wherein said pristine nano g raphene platelets occupy a proportion of at least 40% by volume based on the total ink volume. Currently amended
The conductive ink as set forth in Claim 1 further comprising a conductive additive selected from the group consistin g of carbon nanotubes, carbon nano-fibers, carbon black, fine graphite particles, nano-scaled metal particles, conductive organic species, and combinations thereof. Withdrawn
The conductive ink as set forth in Claim 1 further comprising carbon nanotubes in an amount of less than 5 % by volume based on the total conductive ink volume. Withdrawn
The conductive ink as set forth in Claim 1 wherein said ink is inkjet printable. Withdrawn
The conductive ink as set forth in Claim 1 wherein said ink is screen printable. Withdrawn
The conductive ink as set forth in Claim 1 wherein a viscosity of said ink is less than 500 mPaS. Withdrawn
The conductive ink as set forth in Claim 1 wherein a viscosity of said ink is less than 100 mPaS. Withdrawn
The conductive ink as set forth in Claim 1 wherein a viscosity of said ink is less than 30 mPaS. Withdrawn
(Withdrawn, Currently Amended) The conductive ink as set forth in Claim 1 wherein a viscosity of said ink is less than 200 PaS and said ink contains no less than 20 % by volume of pristine nano graphene platelets. Currently amended
The conductive ink as set forth in Claim 1 wherein said ink, after printing onto a solid substrate to form a solid component, provides a thermal conductivity of at least 10 W/(mK). Withdrawn
The conductive ink as set forth in Claim 1 wherein said ink, after printing onto a solid substrate to form a solid component, provides a thermal conductivity of at least 100 W/(mK). Withdrawn
The conductive ink as set forth in Claim 1 wherein said ink, after printing onto a solid substrate to form a solid component, provides a thermal conductivity of at least 200 W/(mK). Withdrawn
The conductive ink as set forth in Claim 1 further comprising a surfactant, binder material, matrix material, or combination thereof. Withdrawn
(Withdrawn, Currently Amended) The conductive ink of Claim 1 wherein said pristine nanographene platelets are non-covalently functionalized with a linear polymer. Currently amended
(Withdrawn, Currently Amended) The conductive ink as set forth in Claim 1 wherein said pristine nano g raphene platelets have an average thickness of less than 10 nm. Currently amended
A patterned RFID device comprised of the ink of claim 1 printed on a substrate. Withdrawn
A thin film, flexible substrate, or paper coated with the ink of claim 1 for electromagnetic interference (EMI) shielding or electrostatic charge dissipation (ESD) applications, wherein said ink is patterned. Withdrawn
A thermal interface material comprising the ink of claim 1, where said ink is printed onto a plastic, elastomer, or metal substrate, and said substrate may be planar or non- planar, and wherein said printed ink has a thermal conductivity greater than 10 W/mk. Withdrawn
A printed electronic component or a thermally or electrically conductive pattern, said component or conductive pattern comprising: a) pristine nano graphene platelets wherein said pristine nano graphene platelets have never previously been oxidized, and wherein the average thickness of said pristine nano graphene platelets is no greater than 100 nm, and b) a binder material, matrix material, or combination thereof, wherein said component or conductive pattern is printed on a substrate selected from the group consisting of polymer film, paper, or metal, and wherein said pristine nano graphene platelets occupy a proportion of at least 3 % by volume based on the total volume of platelets, binder material and matrix material, and wherein said binder or matrix material is selected from, polyvinyl pyrrolidone, polystyrene sulfonate, petroleum or coal tar pitch, or a combination thereof. Currently amended
The component or pattern of Claim 26 wherein said pristine nano graphene platelets have an average thickness of less than 10 nm. Currently amended
The component or pattern of Claim 26 wherein said pristine nano graphene platelets occupy a proportion of at least 40 % by volume based on the total volume of platelets, binder material, and matrix material. Currently amended
The component or pattern of Claim 26 further comprising carbon nanotubes in an amount of less than 5 % by volume based on the total volume of pristine nano graphene platelets, carbon nanotubes, binder material and matrix material. Currently amended
The component or pattern of Claim 26 further comprising a conductive additive selected from the group consisting of carbon nanotubes, carbon nano-fibers, carbon black, fine graphite particles, nano-scaled metal particles, conductive organic species, and combinations thereof. Original
The component or pattern of Claim 26 wherein said component or pattern provides a thermal conductivity of at least 10 W/(mK). Original
The component or pattern of Claim 26 wherein said component or pattern provides a thermal conductivity of at least 100 W/(mK). Original
The component or pattern of Claim 39, wherein said pristine nano graphene platelets have an average thickness no greater than 1 nm. Currently amended
Canceled
The component or pattern of Claim 39, further comprising carbon nanotubes in an amount of less than 1 % by volume based on the total volume of pristine nano graphene platelets, carbon nanotubes, binder material and matrix material. Currently amended
The component or pattern of Claim 39 wherein said component or pattern provides a thermal conductivity of at least 200 W/(mK). Previously presented
The component or pattern of Claim 39 wherein said pristine nano- graphene platelets are noncovalently functionalized with a linear polymer. Currently amended
Canceled
A printed electronic component or a thermally or electrically conductive pattern, said component or conductive pattern comprising: a) pristine nano graphene platelets wherein said pristine nano graphene platelets have never previously been oxidized, and wherein the average thickness of said pristine nano graphene platelets is no greater than 100 nm, and b) a binder material, matrix material, or combination thereof, wherein said component or conductive pattern is printed on a substrate selected from the group consisting of polymer film, paper, or metal, and wherein said pristine nano graphene platelets occupy a proportion of at least 40 % by volume based on the total volume of platelets, binder material and matrix material, wherein said binder or matrix material is selected from a thermoplastic, a thermoset resin,, polyvinyl pyrrolidone, polystyrene sulfonate, petroleum or coal tar pitch, or a combination thereof, and wherein said component or pattern provides a thermal conductivity of at least 100 W/mK. Currently amended
Layer stacks claimed or described, ordered top of device to substrate.
patterned RFID device
printed electronic component or thermally/electrically conductive pattern
Materials described outside the worked examples.
pristine nano graphene platelets
liquid medium
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Temperature | 850–1050 °C | — |
Thickness |
Patent
Atlas literature
Patent
US 10,362,673Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1: Resistivity of various printed patterns from NGP- and CNT-based inks as a function of the number of printing passes. [0018]
FIG. 2: The viscosity of several NGP- and CNT-containing aqueous dispersions or inks over a range of shear rates. [0019]
FIG. 3: The viscosity of several inks containing NGP, CNT, CNT+NGP, and CNT+CB as conductive nano fillers. [0020]
FIG. 4: Thermal conductivity data for NGP- and CNT-based nanocomposites deposited on a solid substrate via inkjet printing.
FIG. 5 in Ref. 1]. By contrast, with the presently invented NGP-based ink that can carry a high NGP proportion, yet still maintaining a relatively low …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
(Withdrawn, Currently Amended) A nano graphene platelet-based conductive ink that i s printable, comprising: (a) pristine nano graphene platelets wherein each of said pristine nano g raphene platelets has never previously been oxidized, comprises a graphene sheet or multiple graphene sheets, and said pristine nano g raphene platelets have an average thickness no greater than 100 nm, and (b) a liquid medium in which said pristine nano graphene platelets are dispersed, wherein said pristine nano graphene platelets occupy a proportion of at least 0.001% by volume based on the total ink volume, and wherein said ink is formulated such that it is capable of being printed in patterns by means of ink jet printing or screen printing. Currently amended
(Withdrawn, Currently Amended) The conductive ink as set forth in Claim 1 wherein said pristine nano g raphene platelets have an average thickness no greater than 1 nm. Currently amended
(Withdrawn, Currently Amended) The conductive ink as set forth in Claim 1 wherein said pristine nano g raphene platelets occupy a proportion of at least 3 % by volume based on the total ink volume. Currently amended
(Withdrawn, Currently Amended) The conductive ink as set forth in Claim 1 wherein said pristine nano g raphene platelets occupy a proportion of at least 10 % by volume based on the total ink volume. Currently amended
(Withdrawn, Currently Amended) The conductive ink as set forth in Claim 1 wherein said pristine nano g raphene platelets occupy a proportion of at least 40% by volume based on the total ink volume. Currently amended
The conductive ink as set forth in Claim 1 further comprising a conductive additive selected from the group consistin g of carbon nanotubes, carbon nano-fibers, carbon black, fine graphite particles, nano-scaled metal particles, conductive organic species, and combinations thereof. Withdrawn
The conductive ink as set forth in Claim 1 further comprising carbon nanotubes in an amount of less than 5 % by volume based on the total conductive ink volume. Withdrawn
The conductive ink as set forth in Claim 1 wherein said ink is inkjet printable. Withdrawn
The conductive ink as set forth in Claim 1 wherein said ink is screen printable. Withdrawn
The conductive ink as set forth in Claim 1 wherein a viscosity of said ink is less than 500 mPaS. Withdrawn
The conductive ink as set forth in Claim 1 wherein a viscosity of said ink is less than 100 mPaS. Withdrawn
The conductive ink as set forth in Claim 1 wherein a viscosity of said ink is less than 30 mPaS. Withdrawn
(Withdrawn, Currently Amended) The conductive ink as set forth in Claim 1 wherein a viscosity of said ink is less than 200 PaS and said ink contains no less than 20 % by volume of pristine nano graphene platelets. Currently amended
The conductive ink as set forth in Claim 1 wherein said ink, after printing onto a solid substrate to form a solid component, provides a thermal conductivity of at least 10 W/(mK). Withdrawn
The conductive ink as set forth in Claim 1 wherein said ink, after printing onto a solid substrate to form a solid component, provides a thermal conductivity of at least 100 W/(mK). Withdrawn
The conductive ink as set forth in Claim 1 wherein said ink, after printing onto a solid substrate to form a solid component, provides a thermal conductivity of at least 200 W/(mK). Withdrawn
The conductive ink as set forth in Claim 1 further comprising a surfactant, binder material, matrix material, or combination thereof. Withdrawn
(Withdrawn, Currently Amended) The conductive ink of Claim 1 wherein said pristine nanographene platelets are non-covalently functionalized with a linear polymer. Currently amended
(Withdrawn, Currently Amended) The conductive ink as set forth in Claim 1 wherein said pristine nano g raphene platelets have an average thickness of less than 10 nm. Currently amended
A patterned RFID device comprised of the ink of claim 1 printed on a substrate. Withdrawn
A thin film, flexible substrate, or paper coated with the ink of claim 1 for electromagnetic interference (EMI) shielding or electrostatic charge dissipation (ESD) applications, wherein said ink is patterned. Withdrawn
A thermal interface material comprising the ink of claim 1, where said ink is printed onto a plastic, elastomer, or metal substrate, and said substrate may be planar or non- planar, and wherein said printed ink has a thermal conductivity greater than 10 W/mk. Withdrawn
A printed electronic component or a thermally or electrically conductive pattern, said component or conductive pattern comprising: a) pristine nano graphene platelets wherein said pristine nano graphene platelets have never previously been oxidized, and wherein the average thickness of said pristine nano graphene platelets is no greater than 100 nm, and b) a binder material, matrix material, or combination thereof, wherein said component or conductive pattern is printed on a substrate selected from the group consisting of polymer film, paper, or metal, and wherein said pristine nano graphene platelets occupy a proportion of at least 3 % by volume based on the total volume of platelets, binder material and matrix material, and wherein said binder or matrix material is selected from, polyvinyl pyrrolidone, polystyrene sulfonate, petroleum or coal tar pitch, or a combination thereof. Currently amended
The component or pattern of Claim 26 wherein said pristine nano graphene platelets have an average thickness of less than 10 nm. Currently amended
The component or pattern of Claim 26 wherein said pristine nano graphene platelets occupy a proportion of at least 40 % by volume based on the total volume of platelets, binder material, and matrix material. Currently amended
The component or pattern of Claim 26 further comprising carbon nanotubes in an amount of less than 5 % by volume based on the total volume of pristine nano graphene platelets, carbon nanotubes, binder material and matrix material. Currently amended
The component or pattern of Claim 26 further comprising a conductive additive selected from the group consisting of carbon nanotubes, carbon nano-fibers, carbon black, fine graphite particles, nano-scaled metal particles, conductive organic species, and combinations thereof. Original
The component or pattern of Claim 26 wherein said component or pattern provides a thermal conductivity of at least 10 W/(mK). Original
The component or pattern of Claim 26 wherein said component or pattern provides a thermal conductivity of at least 100 W/(mK). Original
The component or pattern of Claim 39, wherein said pristine nano graphene platelets have an average thickness no greater than 1 nm. Currently amended
Canceled
The component or pattern of Claim 39, further comprising carbon nanotubes in an amount of less than 1 % by volume based on the total volume of pristine nano graphene platelets, carbon nanotubes, binder material and matrix material. Currently amended
The component or pattern of Claim 39 wherein said component or pattern provides a thermal conductivity of at least 200 W/(mK). Previously presented
The component or pattern of Claim 39 wherein said pristine nano- graphene platelets are noncovalently functionalized with a linear polymer. Currently amended
Canceled
A printed electronic component or a thermally or electrically conductive pattern, said component or conductive pattern comprising: a) pristine nano graphene platelets wherein said pristine nano graphene platelets have never previously been oxidized, and wherein the average thickness of said pristine nano graphene platelets is no greater than 100 nm, and b) a binder material, matrix material, or combination thereof, wherein said component or conductive pattern is printed on a substrate selected from the group consisting of polymer film, paper, or metal, and wherein said pristine nano graphene platelets occupy a proportion of at least 40 % by volume based on the total volume of platelets, binder material and matrix material, wherein said binder or matrix material is selected from a thermoplastic, a thermoset resin,, polyvinyl pyrrolidone, polystyrene sulfonate, petroleum or coal tar pitch, or a combination thereof, and wherein said component or pattern provides a thermal conductivity of at least 100 W/mK. Currently amended
Layer stacks claimed or described, ordered top of device to substrate.
patterned RFID device
printed electronic component or thermally/electrically conductive pattern
Materials described outside the worked examples.
pristine nano graphene platelets
liquid medium
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Temperature | 850–1050 °C | — |
Thickness |
Patent
Atlas literature
Patent
US 10,362,673Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1: Resistivity of various printed patterns from NGP- and CNT-based inks as a function of the number of printing passes. [0018]
FIG. 2: The viscosity of several NGP- and CNT-containing aqueous dispersions or inks over a range of shear rates. [0019]
FIG. 3: The viscosity of several inks containing NGP, CNT, CNT+NGP, and CNT+CB as conductive nano fillers. [0020]
FIG. 4: Thermal conductivity data for NGP- and CNT-based nanocomposites deposited on a solid substrate via inkjet printing.
FIG. 5 in Ref. 1]. By contrast, with the presently invented NGP-based ink that can carry a high NGP proportion, yet still maintaining a relatively low …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
(Withdrawn, Currently Amended) A nano graphene platelet-based conductive ink that i s printable, comprising: (a) pristine nano graphene platelets wherein each of said pristine nano g raphene platelets has never previously been oxidized, comprises a graphene sheet or multiple graphene sheets, and said pristine nano g raphene platelets have an average thickness no greater than 100 nm, and (b) a liquid medium in which said pristine nano graphene platelets are dispersed, wherein said pristine nano graphene platelets occupy a proportion of at least 0.001% by volume based on the total ink volume, and wherein said ink is formulated such that it is capable of being printed in patterns by means of ink jet printing or screen printing. Currently amended
(Withdrawn, Currently Amended) The conductive ink as set forth in Claim 1 wherein said pristine nano g raphene platelets have an average thickness no greater than 1 nm. Currently amended
(Withdrawn, Currently Amended) The conductive ink as set forth in Claim 1 wherein said pristine nano g raphene platelets occupy a proportion of at least 3 % by volume based on the total ink volume. Currently amended
(Withdrawn, Currently Amended) The conductive ink as set forth in Claim 1 wherein said pristine nano g raphene platelets occupy a proportion of at least 10 % by volume based on the total ink volume. Currently amended
(Withdrawn, Currently Amended) The conductive ink as set forth in Claim 1 wherein said pristine nano g raphene platelets occupy a proportion of at least 40% by volume based on the total ink volume. Currently amended
The conductive ink as set forth in Claim 1 further comprising a conductive additive selected from the group consistin g of carbon nanotubes, carbon nano-fibers, carbon black, fine graphite particles, nano-scaled metal particles, conductive organic species, and combinations thereof. Withdrawn
The conductive ink as set forth in Claim 1 further comprising carbon nanotubes in an amount of less than 5 % by volume based on the total conductive ink volume. Withdrawn
The conductive ink as set forth in Claim 1 wherein said ink is inkjet printable. Withdrawn
The conductive ink as set forth in Claim 1 wherein said ink is screen printable. Withdrawn
The conductive ink as set forth in Claim 1 wherein a viscosity of said ink is less than 500 mPaS. Withdrawn
The conductive ink as set forth in Claim 1 wherein a viscosity of said ink is less than 100 mPaS. Withdrawn
The conductive ink as set forth in Claim 1 wherein a viscosity of said ink is less than 30 mPaS. Withdrawn
(Withdrawn, Currently Amended) The conductive ink as set forth in Claim 1 wherein a viscosity of said ink is less than 200 PaS and said ink contains no less than 20 % by volume of pristine nano graphene platelets. Currently amended
The conductive ink as set forth in Claim 1 wherein said ink, after printing onto a solid substrate to form a solid component, provides a thermal conductivity of at least 10 W/(mK). Withdrawn
The conductive ink as set forth in Claim 1 wherein said ink, after printing onto a solid substrate to form a solid component, provides a thermal conductivity of at least 100 W/(mK). Withdrawn
The conductive ink as set forth in Claim 1 wherein said ink, after printing onto a solid substrate to form a solid component, provides a thermal conductivity of at least 200 W/(mK). Withdrawn
The conductive ink as set forth in Claim 1 further comprising a surfactant, binder material, matrix material, or combination thereof. Withdrawn
(Withdrawn, Currently Amended) The conductive ink of Claim 1 wherein said pristine nanographene platelets are non-covalently functionalized with a linear polymer. Currently amended
(Withdrawn, Currently Amended) The conductive ink as set forth in Claim 1 wherein said pristine nano g raphene platelets have an average thickness of less than 10 nm. Currently amended
A patterned RFID device comprised of the ink of claim 1 printed on a substrate. Withdrawn
A thin film, flexible substrate, or paper coated with the ink of claim 1 for electromagnetic interference (EMI) shielding or electrostatic charge dissipation (ESD) applications, wherein said ink is patterned. Withdrawn
A thermal interface material comprising the ink of claim 1, where said ink is printed onto a plastic, elastomer, or metal substrate, and said substrate may be planar or non- planar, and wherein said printed ink has a thermal conductivity greater than 10 W/mk. Withdrawn
A printed electronic component or a thermally or electrically conductive pattern, said component or conductive pattern comprising: a) pristine nano graphene platelets wherein said pristine nano graphene platelets have never previously been oxidized, and wherein the average thickness of said pristine nano graphene platelets is no greater than 100 nm, and b) a binder material, matrix material, or combination thereof, wherein said component or conductive pattern is printed on a substrate selected from the group consisting of polymer film, paper, or metal, and wherein said pristine nano graphene platelets occupy a proportion of at least 3 % by volume based on the total volume of platelets, binder material and matrix material, and wherein said binder or matrix material is selected from, polyvinyl pyrrolidone, polystyrene sulfonate, petroleum or coal tar pitch, or a combination thereof. Currently amended
The component or pattern of Claim 26 wherein said pristine nano graphene platelets have an average thickness of less than 10 nm. Currently amended
The component or pattern of Claim 26 wherein said pristine nano graphene platelets occupy a proportion of at least 40 % by volume based on the total volume of platelets, binder material, and matrix material. Currently amended
The component or pattern of Claim 26 further comprising carbon nanotubes in an amount of less than 5 % by volume based on the total volume of pristine nano graphene platelets, carbon nanotubes, binder material and matrix material. Currently amended
The component or pattern of Claim 26 further comprising a conductive additive selected from the group consisting of carbon nanotubes, carbon nano-fibers, carbon black, fine graphite particles, nano-scaled metal particles, conductive organic species, and combinations thereof. Original
The component or pattern of Claim 26 wherein said component or pattern provides a thermal conductivity of at least 10 W/(mK). Original
The component or pattern of Claim 26 wherein said component or pattern provides a thermal conductivity of at least 100 W/(mK). Original
The component or pattern of Claim 39, wherein said pristine nano graphene platelets have an average thickness no greater than 1 nm. Currently amended
Canceled
The component or pattern of Claim 39, further comprising carbon nanotubes in an amount of less than 1 % by volume based on the total volume of pristine nano graphene platelets, carbon nanotubes, binder material and matrix material. Currently amended
The component or pattern of Claim 39 wherein said component or pattern provides a thermal conductivity of at least 200 W/(mK). Previously presented
The component or pattern of Claim 39 wherein said pristine nano- graphene platelets are noncovalently functionalized with a linear polymer. Currently amended
Canceled
A printed electronic component or a thermally or electrically conductive pattern, said component or conductive pattern comprising: a) pristine nano graphene platelets wherein said pristine nano graphene platelets have never previously been oxidized, and wherein the average thickness of said pristine nano graphene platelets is no greater than 100 nm, and b) a binder material, matrix material, or combination thereof, wherein said component or conductive pattern is printed on a substrate selected from the group consisting of polymer film, paper, or metal, and wherein said pristine nano graphene platelets occupy a proportion of at least 40 % by volume based on the total volume of platelets, binder material and matrix material, wherein said binder or matrix material is selected from a thermoplastic, a thermoset resin,, polyvinyl pyrrolidone, polystyrene sulfonate, petroleum or coal tar pitch, or a combination thereof, and wherein said component or pattern provides a thermal conductivity of at least 100 W/mK. Currently amended
Layer stacks claimed or described, ordered top of device to substrate.
patterned RFID device
printed electronic component or thermally/electrically conductive pattern
Materials described outside the worked examples.
pristine nano graphene platelets
liquid medium
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Temperature | 850–1050 °C | — |
Thickness |
Patent
Atlas literature
Patent
US 10,362,673Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1: Resistivity of various printed patterns from NGP- and CNT-based inks as a function of the number of printing passes. [0018]
FIG. 2: The viscosity of several NGP- and CNT-containing aqueous dispersions or inks over a range of shear rates. [0019]
FIG. 3: The viscosity of several inks containing NGP, CNT, CNT+NGP, and CNT+CB as conductive nano fillers. [0020]
FIG. 4: Thermal conductivity data for NGP- and CNT-based nanocomposites deposited on a solid substrate via inkjet printing.
FIG. 5 in Ref. 1]. By contrast, with the presently invented NGP-based ink that can carry a high NGP proportion, yet still maintaining a relatively low …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
(Withdrawn, Currently Amended) A nano graphene platelet-based conductive ink that i s printable, comprising: (a) pristine nano graphene platelets wherein each of said pristine nano g raphene platelets has never previously been oxidized, comprises a graphene sheet or multiple graphene sheets, and said pristine nano g raphene platelets have an average thickness no greater than 100 nm, and (b) a liquid medium in which said pristine nano graphene platelets are dispersed, wherein said pristine nano graphene platelets occupy a proportion of at least 0.001% by volume based on the total ink volume, and wherein said ink is formulated such that it is capable of being printed in patterns by means of ink jet printing or screen printing. Currently amended
(Withdrawn, Currently Amended) The conductive ink as set forth in Claim 1 wherein said pristine nano g raphene platelets have an average thickness no greater than 1 nm. Currently amended
(Withdrawn, Currently Amended) The conductive ink as set forth in Claim 1 wherein said pristine nano g raphene platelets occupy a proportion of at least 3 % by volume based on the total ink volume. Currently amended
(Withdrawn, Currently Amended) The conductive ink as set forth in Claim 1 wherein said pristine nano g raphene platelets occupy a proportion of at least 10 % by volume based on the total ink volume. Currently amended
(Withdrawn, Currently Amended) The conductive ink as set forth in Claim 1 wherein said pristine nano g raphene platelets occupy a proportion of at least 40% by volume based on the total ink volume. Currently amended
The conductive ink as set forth in Claim 1 further comprising a conductive additive selected from the group consistin g of carbon nanotubes, carbon nano-fibers, carbon black, fine graphite particles, nano-scaled metal particles, conductive organic species, and combinations thereof. Withdrawn
The conductive ink as set forth in Claim 1 further comprising carbon nanotubes in an amount of less than 5 % by volume based on the total conductive ink volume. Withdrawn
The conductive ink as set forth in Claim 1 wherein said ink is inkjet printable. Withdrawn
The conductive ink as set forth in Claim 1 wherein said ink is screen printable. Withdrawn
The conductive ink as set forth in Claim 1 wherein a viscosity of said ink is less than 500 mPaS. Withdrawn
The conductive ink as set forth in Claim 1 wherein a viscosity of said ink is less than 100 mPaS. Withdrawn
The conductive ink as set forth in Claim 1 wherein a viscosity of said ink is less than 30 mPaS. Withdrawn
(Withdrawn, Currently Amended) The conductive ink as set forth in Claim 1 wherein a viscosity of said ink is less than 200 PaS and said ink contains no less than 20 % by volume of pristine nano graphene platelets. Currently amended
The conductive ink as set forth in Claim 1 wherein said ink, after printing onto a solid substrate to form a solid component, provides a thermal conductivity of at least 10 W/(mK). Withdrawn
The conductive ink as set forth in Claim 1 wherein said ink, after printing onto a solid substrate to form a solid component, provides a thermal conductivity of at least 100 W/(mK). Withdrawn
The conductive ink as set forth in Claim 1 wherein said ink, after printing onto a solid substrate to form a solid component, provides a thermal conductivity of at least 200 W/(mK). Withdrawn
The conductive ink as set forth in Claim 1 further comprising a surfactant, binder material, matrix material, or combination thereof. Withdrawn
(Withdrawn, Currently Amended) The conductive ink of Claim 1 wherein said pristine nanographene platelets are non-covalently functionalized with a linear polymer. Currently amended
(Withdrawn, Currently Amended) The conductive ink as set forth in Claim 1 wherein said pristine nano g raphene platelets have an average thickness of less than 10 nm. Currently amended
A patterned RFID device comprised of the ink of claim 1 printed on a substrate. Withdrawn
A thin film, flexible substrate, or paper coated with the ink of claim 1 for electromagnetic interference (EMI) shielding or electrostatic charge dissipation (ESD) applications, wherein said ink is patterned. Withdrawn
A thermal interface material comprising the ink of claim 1, where said ink is printed onto a plastic, elastomer, or metal substrate, and said substrate may be planar or non- planar, and wherein said printed ink has a thermal conductivity greater than 10 W/mk. Withdrawn
A printed electronic component or a thermally or electrically conductive pattern, said component or conductive pattern comprising: a) pristine nano graphene platelets wherein said pristine nano graphene platelets have never previously been oxidized, and wherein the average thickness of said pristine nano graphene platelets is no greater than 100 nm, and b) a binder material, matrix material, or combination thereof, wherein said component or conductive pattern is printed on a substrate selected from the group consisting of polymer film, paper, or metal, and wherein said pristine nano graphene platelets occupy a proportion of at least 3 % by volume based on the total volume of platelets, binder material and matrix material, and wherein said binder or matrix material is selected from, polyvinyl pyrrolidone, polystyrene sulfonate, petroleum or coal tar pitch, or a combination thereof. Currently amended
The component or pattern of Claim 26 wherein said pristine nano graphene platelets have an average thickness of less than 10 nm. Currently amended
The component or pattern of Claim 26 wherein said pristine nano graphene platelets occupy a proportion of at least 40 % by volume based on the total volume of platelets, binder material, and matrix material. Currently amended
The component or pattern of Claim 26 further comprising carbon nanotubes in an amount of less than 5 % by volume based on the total volume of pristine nano graphene platelets, carbon nanotubes, binder material and matrix material. Currently amended
The component or pattern of Claim 26 further comprising a conductive additive selected from the group consisting of carbon nanotubes, carbon nano-fibers, carbon black, fine graphite particles, nano-scaled metal particles, conductive organic species, and combinations thereof. Original
The component or pattern of Claim 26 wherein said component or pattern provides a thermal conductivity of at least 10 W/(mK). Original
The component or pattern of Claim 26 wherein said component or pattern provides a thermal conductivity of at least 100 W/(mK). Original
The component or pattern of Claim 39, wherein said pristine nano graphene platelets have an average thickness no greater than 1 nm. Currently amended
Canceled
The component or pattern of Claim 39, further comprising carbon nanotubes in an amount of less than 1 % by volume based on the total volume of pristine nano graphene platelets, carbon nanotubes, binder material and matrix material. Currently amended
The component or pattern of Claim 39 wherein said component or pattern provides a thermal conductivity of at least 200 W/(mK). Previously presented
The component or pattern of Claim 39 wherein said pristine nano- graphene platelets are noncovalently functionalized with a linear polymer. Currently amended
Canceled
A printed electronic component or a thermally or electrically conductive pattern, said component or conductive pattern comprising: a) pristine nano graphene platelets wherein said pristine nano graphene platelets have never previously been oxidized, and wherein the average thickness of said pristine nano graphene platelets is no greater than 100 nm, and b) a binder material, matrix material, or combination thereof, wherein said component or conductive pattern is printed on a substrate selected from the group consisting of polymer film, paper, or metal, and wherein said pristine nano graphene platelets occupy a proportion of at least 40 % by volume based on the total volume of platelets, binder material and matrix material, wherein said binder or matrix material is selected from a thermoplastic, a thermoset resin,, polyvinyl pyrrolidone, polystyrene sulfonate, petroleum or coal tar pitch, or a combination thereof, and wherein said component or pattern provides a thermal conductivity of at least 100 W/mK. Currently amended
Layer stacks claimed or described, ordered top of device to substrate.
patterned RFID device
printed electronic component or thermally/electrically conductive pattern
Materials described outside the worked examples.
pristine nano graphene platelets
liquid medium
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Temperature | 850–1050 °C | — |
Thickness |
conductive additive
carbon nanotubes
binder or matrix material
| 4–5 nm |
| — |
Thickness | ≤ 0.2 mm | — |
Thickness | ≤ 0.01 mm | — |
Thickness | ≥ 10 nm | — |
Thickness | ≥ 1 nm | — |
Pressure | ≤ 500 mPa | — |
Pressure | ≤ 1 mPa | — |
Pressure | ≤ 30 mPa | — |
Pressure | ≤ 200 Pa | — |
Thickness | ≤ 10 nm | — |
— | ≥ 10 W | — |
— | ≥ 1 W | — |
— | ≥ 200 W | — |
Pressure | 3–30 mPa | — |
Pressure | ≤ 0.5 Pa | — |
Pressure | ≥ 1 Pa | — |
conductive additive
carbon nanotubes
binder or matrix material
| 4–5 nm |
| — |
Thickness | ≤ 0.2 mm | — |
Thickness | ≤ 0.01 mm | — |
Thickness | ≥ 10 nm | — |
Thickness | ≥ 1 nm | — |
Pressure | ≤ 500 mPa | — |
Pressure | ≤ 1 mPa | — |
Pressure | ≤ 30 mPa | — |
Pressure | ≤ 200 Pa | — |
Thickness | ≤ 10 nm | — |
— | ≥ 10 W | — |
— | ≥ 1 W | — |
— | ≥ 200 W | — |
Pressure | 3–30 mPa | — |
Pressure | ≤ 0.5 Pa | — |
Pressure | ≥ 1 Pa | — |
conductive additive
carbon nanotubes
binder or matrix material
| 4–5 nm |
| — |
Thickness | ≤ 0.2 mm | — |
Thickness | ≤ 0.01 mm | — |
Thickness | ≥ 10 nm | — |
Thickness | ≥ 1 nm | — |
Pressure | ≤ 500 mPa | — |
Pressure | ≤ 1 mPa | — |
Pressure | ≤ 30 mPa | — |
Pressure | ≤ 200 Pa | — |
Thickness | ≤ 10 nm | — |
— | ≥ 10 W | — |
— | ≥ 1 W | — |
— | ≥ 200 W | — |
Pressure | 3–30 mPa | — |
Pressure | ≤ 0.5 Pa | — |
Pressure | ≥ 1 Pa | — |
conductive additive
carbon nanotubes
binder or matrix material
| 4–5 nm |
| — |
Thickness | ≤ 0.2 mm | — |
Thickness | ≤ 0.01 mm | — |
Thickness | ≥ 10 nm | — |
Thickness | ≥ 1 nm | — |
Pressure | ≤ 500 mPa | — |
Pressure | ≤ 1 mPa | — |
Pressure | ≤ 30 mPa | — |
Pressure | ≤ 200 Pa | — |
Thickness | ≤ 10 nm | — |
— | ≥ 10 W | — |
— | ≥ 1 W | — |
— | ≥ 200 W | — |
Pressure | 3–30 mPa | — |
Pressure | ≤ 0.5 Pa | — |
Pressure | ≥ 1 Pa | — |