Patent
US 10,479,905High-Resolution Patterning of Graphene by Screen and Gravure Printing for Highly Flexible Printed Electronics
Mark C. Hersam
US
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Patent
Atlas literature
Patent
US 10,479,905Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A gravure printing graphene ink composition, said composition comprising non-oxidized graphene, a hydrophobic fluid component and an ethyl cellulose, said hydrophobic fluid component comprising a component being, alkanes [[and]] or a combination of chloroform and alkanes, said composition comprising a graphene-ethyl cellulose solid concentration of 5 % to 10% w/v and a viscosity of 0.1 to 1.0 Pa -s. Currently amended
The graphene ink composition of claim 1 printed on a substrate, said composition comprising a graphene content of 30 to 40 wt%. Previously presented
. Canceled
A screen printing graphene ink composition, said composition comprising non-oxidized graphene, a hydrophobic fluid component and an ethyl cellulose, said hydrophobic fluid component comprising a component being, alkanes [[and]] or a combination of chloroform and alkanes, said composition comprising a graphene-ethyl cellulose solid concentration of 10% to % w/v and a viscosity of 5 to 100 Pa -s. Currently amended
The composition of claim 4 printed on a substrate, said composition comprising a graphene content of at least 50 wt%. Previously presented
. Canceled
A gravure printing graphene ink composition, said composition consisting essentially of nonoxidized graphene, a hydrophobic fluid component and an ethyl cellulose, said hydrophobic fluid component comprising a component selected from chloroform, alkanes and a combination thereof, said composition comprising a graphene- ethyl cellulose solid concentration of 5 % to 10% w/v and a viscosity of 0.1 to 1.0 Pa -s. Previously presented
The graphene ink composition of claim 9 printed on a substrate, said composition comprising a graphene content of 30 to 40 wt %. Previously presented
. Canceled
A screen printing graphene ink composition, said composition consisting essentially of nonoxidized graphene, a hydrophobic fluid component and an ethyl cellulose, said hydrophobic fluid component comprising a component selected from chloroform, alkanes and a combination thereof, said composition comprising a graphene- ethyl cellulose solid concentration of 10% to 20 % w/v and a viscosity of 5 to 100 Pa -s. Previously presented
The composition of claim 12 printed on a substrate, said composition comprising a graphene content of at least 50 wt%. Previously presented
. Canceled
A gravure printing graphene ink composition comprising a composite of graphene and an ethyl cellulose, and a hydrophobic fluid component comprising an ink solvent and a dispersion solvent, said hydrophobic fluid component capable of providing said ink composition upon removal of said dispersion solvent, said ink solvent being, alkanes [[and]]or a combination of chloroform and alkanes, said composition comprising a graphene-ethyl cellulose solid concentration of 5 % to 10 % w/v and a viscosity of 0.1 to 1.0 Pa -s. Currently amended
The graphene ink composition of claim 15 printed on a substrate, said composition comprising a graphene content of 30 to 40 wt%. Previously presented
. Canceled
A screen printing graphene ink composition comprising a composite of graphene and an ethyl cellulose, and a hydrophobic fluid component comprising an ink solvent and a dispersion solvent, said hydrophobic fluid component capable of providing said ink composition upon removal of said dispersion solvent, said ink solvent being, alkanes [[and]]or a combination of chloroform and alkanes, said composition comprising a graphene-ethyl cellulose solid concentration of 10% to % w/v and a viscosity of 5 to 100 Pa -s. Currently amended
The composition of claim 18 printed on a substrate, said composition comprising a graphene content of at least 50 wt%. Previously presented
. Canceled
Materials described outside the worked examples.
non-oxidized graphene
ethyl cellulose
Measurements and analyses referenced in the patent, with their drawing references.
durability were characterized. [0055] Figure 9 depicts a schematic diagram for the preparation of the stencil from a silicon wafer and the procedure for screen printing using this stencil. The silicon wafer was first thinned to impart mechanical flexibility. A s
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
gravure printing ink viscosity range | 0.1–1 Pa·s | non-oxidized graphene |
screen printing ink viscosity range | 5–100 Pa·s |
Patent
Atlas literature
Patent
US 10,479,905Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A gravure printing graphene ink composition, said composition comprising non-oxidized graphene, a hydrophobic fluid component and an ethyl cellulose, said hydrophobic fluid component comprising a component being, alkanes [[and]] or a combination of chloroform and alkanes, said composition comprising a graphene-ethyl cellulose solid concentration of 5 % to 10% w/v and a viscosity of 0.1 to 1.0 Pa -s. Currently amended
The graphene ink composition of claim 1 printed on a substrate, said composition comprising a graphene content of 30 to 40 wt%. Previously presented
. Canceled
A screen printing graphene ink composition, said composition comprising non-oxidized graphene, a hydrophobic fluid component and an ethyl cellulose, said hydrophobic fluid component comprising a component being, alkanes [[and]] or a combination of chloroform and alkanes, said composition comprising a graphene-ethyl cellulose solid concentration of 10% to % w/v and a viscosity of 5 to 100 Pa -s. Currently amended
The composition of claim 4 printed on a substrate, said composition comprising a graphene content of at least 50 wt%. Previously presented
. Canceled
A gravure printing graphene ink composition, said composition consisting essentially of nonoxidized graphene, a hydrophobic fluid component and an ethyl cellulose, said hydrophobic fluid component comprising a component selected from chloroform, alkanes and a combination thereof, said composition comprising a graphene- ethyl cellulose solid concentration of 5 % to 10% w/v and a viscosity of 0.1 to 1.0 Pa -s. Previously presented
The graphene ink composition of claim 9 printed on a substrate, said composition comprising a graphene content of 30 to 40 wt %. Previously presented
. Canceled
A screen printing graphene ink composition, said composition consisting essentially of nonoxidized graphene, a hydrophobic fluid component and an ethyl cellulose, said hydrophobic fluid component comprising a component selected from chloroform, alkanes and a combination thereof, said composition comprising a graphene- ethyl cellulose solid concentration of 10% to 20 % w/v and a viscosity of 5 to 100 Pa -s. Previously presented
The composition of claim 12 printed on a substrate, said composition comprising a graphene content of at least 50 wt%. Previously presented
. Canceled
A gravure printing graphene ink composition comprising a composite of graphene and an ethyl cellulose, and a hydrophobic fluid component comprising an ink solvent and a dispersion solvent, said hydrophobic fluid component capable of providing said ink composition upon removal of said dispersion solvent, said ink solvent being, alkanes [[and]]or a combination of chloroform and alkanes, said composition comprising a graphene-ethyl cellulose solid concentration of 5 % to 10 % w/v and a viscosity of 0.1 to 1.0 Pa -s. Currently amended
The graphene ink composition of claim 15 printed on a substrate, said composition comprising a graphene content of 30 to 40 wt%. Previously presented
. Canceled
A screen printing graphene ink composition comprising a composite of graphene and an ethyl cellulose, and a hydrophobic fluid component comprising an ink solvent and a dispersion solvent, said hydrophobic fluid component capable of providing said ink composition upon removal of said dispersion solvent, said ink solvent being, alkanes [[and]]or a combination of chloroform and alkanes, said composition comprising a graphene-ethyl cellulose solid concentration of 10% to % w/v and a viscosity of 5 to 100 Pa -s. Currently amended
The composition of claim 18 printed on a substrate, said composition comprising a graphene content of at least 50 wt%. Previously presented
. Canceled
Materials described outside the worked examples.
non-oxidized graphene
ethyl cellulose
Measurements and analyses referenced in the patent, with their drawing references.
durability were characterized. [0055] Figure 9 depicts a schematic diagram for the preparation of the stencil from a silicon wafer and the procedure for screen printing using this stencil. The silicon wafer was first thinned to impart mechanical flexibility. A s
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
gravure printing ink viscosity range | 0.1–1 Pa·s | non-oxidized graphene |
screen printing ink viscosity range | 5–100 Pa·s |
Patent
Atlas literature
Patent
US 10,479,905Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A gravure printing graphene ink composition, said composition comprising non-oxidized graphene, a hydrophobic fluid component and an ethyl cellulose, said hydrophobic fluid component comprising a component being, alkanes [[and]] or a combination of chloroform and alkanes, said composition comprising a graphene-ethyl cellulose solid concentration of 5 % to 10% w/v and a viscosity of 0.1 to 1.0 Pa -s. Currently amended
The graphene ink composition of claim 1 printed on a substrate, said composition comprising a graphene content of 30 to 40 wt%. Previously presented
. Canceled
A screen printing graphene ink composition, said composition comprising non-oxidized graphene, a hydrophobic fluid component and an ethyl cellulose, said hydrophobic fluid component comprising a component being, alkanes [[and]] or a combination of chloroform and alkanes, said composition comprising a graphene-ethyl cellulose solid concentration of 10% to % w/v and a viscosity of 5 to 100 Pa -s. Currently amended
The composition of claim 4 printed on a substrate, said composition comprising a graphene content of at least 50 wt%. Previously presented
. Canceled
A gravure printing graphene ink composition, said composition consisting essentially of nonoxidized graphene, a hydrophobic fluid component and an ethyl cellulose, said hydrophobic fluid component comprising a component selected from chloroform, alkanes and a combination thereof, said composition comprising a graphene- ethyl cellulose solid concentration of 5 % to 10% w/v and a viscosity of 0.1 to 1.0 Pa -s. Previously presented
The graphene ink composition of claim 9 printed on a substrate, said composition comprising a graphene content of 30 to 40 wt %. Previously presented
. Canceled
A screen printing graphene ink composition, said composition consisting essentially of nonoxidized graphene, a hydrophobic fluid component and an ethyl cellulose, said hydrophobic fluid component comprising a component selected from chloroform, alkanes and a combination thereof, said composition comprising a graphene- ethyl cellulose solid concentration of 10% to 20 % w/v and a viscosity of 5 to 100 Pa -s. Previously presented
The composition of claim 12 printed on a substrate, said composition comprising a graphene content of at least 50 wt%. Previously presented
. Canceled
A gravure printing graphene ink composition comprising a composite of graphene and an ethyl cellulose, and a hydrophobic fluid component comprising an ink solvent and a dispersion solvent, said hydrophobic fluid component capable of providing said ink composition upon removal of said dispersion solvent, said ink solvent being, alkanes [[and]]or a combination of chloroform and alkanes, said composition comprising a graphene-ethyl cellulose solid concentration of 5 % to 10 % w/v and a viscosity of 0.1 to 1.0 Pa -s. Currently amended
The graphene ink composition of claim 15 printed on a substrate, said composition comprising a graphene content of 30 to 40 wt%. Previously presented
. Canceled
A screen printing graphene ink composition comprising a composite of graphene and an ethyl cellulose, and a hydrophobic fluid component comprising an ink solvent and a dispersion solvent, said hydrophobic fluid component capable of providing said ink composition upon removal of said dispersion solvent, said ink solvent being, alkanes [[and]]or a combination of chloroform and alkanes, said composition comprising a graphene-ethyl cellulose solid concentration of 10% to % w/v and a viscosity of 5 to 100 Pa -s. Currently amended
The composition of claim 18 printed on a substrate, said composition comprising a graphene content of at least 50 wt%. Previously presented
. Canceled
Materials described outside the worked examples.
non-oxidized graphene
ethyl cellulose
Measurements and analyses referenced in the patent, with their drawing references.
durability were characterized. [0055] Figure 9 depicts a schematic diagram for the preparation of the stencil from a silicon wafer and the procedure for screen printing using this stencil. The silicon wafer was first thinned to impart mechanical flexibility. A s
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
gravure printing ink viscosity range | 0.1–1 Pa·s | non-oxidized graphene |
screen printing ink viscosity range | 5–100 Pa·s |
Patent
Atlas literature
Patent
US 10,479,905Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A gravure printing graphene ink composition, said composition comprising non-oxidized graphene, a hydrophobic fluid component and an ethyl cellulose, said hydrophobic fluid component comprising a component being, alkanes [[and]] or a combination of chloroform and alkanes, said composition comprising a graphene-ethyl cellulose solid concentration of 5 % to 10% w/v and a viscosity of 0.1 to 1.0 Pa -s. Currently amended
The graphene ink composition of claim 1 printed on a substrate, said composition comprising a graphene content of 30 to 40 wt%. Previously presented
. Canceled
A screen printing graphene ink composition, said composition comprising non-oxidized graphene, a hydrophobic fluid component and an ethyl cellulose, said hydrophobic fluid component comprising a component being, alkanes [[and]] or a combination of chloroform and alkanes, said composition comprising a graphene-ethyl cellulose solid concentration of 10% to % w/v and a viscosity of 5 to 100 Pa -s. Currently amended
The composition of claim 4 printed on a substrate, said composition comprising a graphene content of at least 50 wt%. Previously presented
. Canceled
A gravure printing graphene ink composition, said composition consisting essentially of nonoxidized graphene, a hydrophobic fluid component and an ethyl cellulose, said hydrophobic fluid component comprising a component selected from chloroform, alkanes and a combination thereof, said composition comprising a graphene- ethyl cellulose solid concentration of 5 % to 10% w/v and a viscosity of 0.1 to 1.0 Pa -s. Previously presented
The graphene ink composition of claim 9 printed on a substrate, said composition comprising a graphene content of 30 to 40 wt %. Previously presented
. Canceled
A screen printing graphene ink composition, said composition consisting essentially of nonoxidized graphene, a hydrophobic fluid component and an ethyl cellulose, said hydrophobic fluid component comprising a component selected from chloroform, alkanes and a combination thereof, said composition comprising a graphene- ethyl cellulose solid concentration of 10% to 20 % w/v and a viscosity of 5 to 100 Pa -s. Previously presented
The composition of claim 12 printed on a substrate, said composition comprising a graphene content of at least 50 wt%. Previously presented
. Canceled
A gravure printing graphene ink composition comprising a composite of graphene and an ethyl cellulose, and a hydrophobic fluid component comprising an ink solvent and a dispersion solvent, said hydrophobic fluid component capable of providing said ink composition upon removal of said dispersion solvent, said ink solvent being, alkanes [[and]]or a combination of chloroform and alkanes, said composition comprising a graphene-ethyl cellulose solid concentration of 5 % to 10 % w/v and a viscosity of 0.1 to 1.0 Pa -s. Currently amended
The graphene ink composition of claim 15 printed on a substrate, said composition comprising a graphene content of 30 to 40 wt%. Previously presented
. Canceled
A screen printing graphene ink composition comprising a composite of graphene and an ethyl cellulose, and a hydrophobic fluid component comprising an ink solvent and a dispersion solvent, said hydrophobic fluid component capable of providing said ink composition upon removal of said dispersion solvent, said ink solvent being, alkanes [[and]]or a combination of chloroform and alkanes, said composition comprising a graphene-ethyl cellulose solid concentration of 10% to % w/v and a viscosity of 5 to 100 Pa -s. Currently amended
The composition of claim 18 printed on a substrate, said composition comprising a graphene content of at least 50 wt%. Previously presented
. Canceled
Materials described outside the worked examples.
non-oxidized graphene
ethyl cellulose
Measurements and analyses referenced in the patent, with their drawing references.
durability were characterized. [0055] Figure 9 depicts a schematic diagram for the preparation of the stencil from a silicon wafer and the procedure for screen printing using this stencil. The silicon wafer was first thinned to impart mechanical flexibility. A s
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
gravure printing ink viscosity range | 0.1–1 Pa·s | non-oxidized graphene |
screen printing ink viscosity range | 5–100 Pa·s |
alkanes
chloroform
CHCl₃
terpineol
ethanol
C₂H₅OH
printed annealed graphene film conductivity | ≥ 10000 S/m | non-oxidized graphene |
Thickness | 0.3–2 mm | — |
Thickness | 2.5–30 cm | — |
Thickness | 2.5–5 cm | — |
Thickness | 1.5–2.5 mm | — |
Pressure | 0.2–3 Pa | — |
Thickness | 100–200 nm | — |
Thickness | 15–30 nm | — |
Pressure | 0.1–1 Pa | — |
Pressure | 5–100 Pa | — |
alkanes
chloroform
CHCl₃
terpineol
ethanol
C₂H₅OH
printed annealed graphene film conductivity | ≥ 10000 S/m | non-oxidized graphene |
Thickness | 0.3–2 mm | — |
Thickness | 2.5–30 cm | — |
Thickness | 2.5–5 cm | — |
Thickness | 1.5–2.5 mm | — |
Pressure | 0.2–3 Pa | — |
Thickness | 100–200 nm | — |
Thickness | 15–30 nm | — |
Pressure | 0.1–1 Pa | — |
Pressure | 5–100 Pa | — |
alkanes
chloroform
CHCl₃
terpineol
ethanol
C₂H₅OH
printed annealed graphene film conductivity | ≥ 10000 S/m | non-oxidized graphene |
Thickness | 0.3–2 mm | — |
Thickness | 2.5–30 cm | — |
Thickness | 2.5–5 cm | — |
Thickness | 1.5–2.5 mm | — |
Pressure | 0.2–3 Pa | — |
Thickness | 100–200 nm | — |
Thickness | 15–30 nm | — |
Pressure | 0.1–1 Pa | — |
Pressure | 5–100 Pa | — |
alkanes
chloroform
CHCl₃
terpineol
ethanol
C₂H₅OH
printed annealed graphene film conductivity | ≥ 10000 S/m | non-oxidized graphene |
Thickness | 0.3–2 mm | — |
Thickness | 2.5–30 cm | — |
Thickness | 2.5–5 cm | — |
Thickness | 1.5–2.5 mm | — |
Pressure | 0.2–3 Pa | — |
Thickness | 100–200 nm | — |
Thickness | 15–30 nm | — |
Pressure | 0.1–1 Pa | — |
Pressure | 5–100 Pa | — |