Patent
US 10,232,322OF THE INVENTION:
Ho Bum PARK
US
Copyright © 2026 Matter42. All rights reserved.
Patent
Atlas literature
Patent
US 10,232,322Patent drawings and their descriptions. Click a drawing to enlarge it.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A composite separation membrane comprising a porous polymer support and a graphene oxide coating layer formed on the porous polymer support, wherein the coating layer consists of a plurality of graphene oxide layers, each of which comprises pores through which gases pass; wherein the pores present in one of the graphene oxide layers are regularly arranged in a zigzag configuration at an average distance of 0.5 to 1.0 nm apart from the pores present in the graphene oxide layers formed on one or both sides of the one of the g raphene oxide layers. Previously presented
The composite separation membrane according to claim 1, wherein the porous polymer support is made of a polymer selected from the group consisting of polysulfone, polyethersulfone, polyimide, polyetherimide, polyamide, polyacrylonitrile, cellulose acetate, cellulose triacetate, and polyvinylidene fluoride. Original
The composite separation membrane according to claim 1, wherein the graphene oxide has a size in the range of 0.1 p m to 5 m. Original
The composite separation membrane according to claim 1, wherein the graphene oxide is functionalized graphene oxide prepared by the conversion of the hydroxyl, carboxyl, carbonyl or epoxy groups present in the graphene oxide to ester, ether, amide or ammo groups. Previously presented
The composite separation membrane according to claim 1, wherein the graphene oxide coating layer has a thickness of 3 to 20 nm. Currently amended
A membrane for water treatment comprising the composite separation membrane according to claim 1. Previously presented
A memory device comprising the composite separation membrane according to claim 1. Previously presented
An electrode material comprising the composite separation membrane according to claim 1. Previously presented
Canceled
The composite separation membrane according to claim 2, wherein the pores have an average diameter of 0.5 to 1.0 nm. Original
Canceled
A method for manufacturing a composite separation membrane, comprising: 1) dispersing graphene oxide in distilled water to obtain a dispersion; and 2) spin coating the dispersion on a porous polymer support to form a coating layer; wherein the spin coating is performed 3 to times at 2,000 to 4,000 rpm for 15 to 60 seconds each time. Previously presented
The method according to claim 10, wherein the concentration of the graphene oxide in the dispersion obtained in step 1) is from 0.5 to 1.5 g/L. Original
(Cu rr ently amended) The method according to claim 10, wherein the coating layer formed in step 2) has a thickness of 3 to 20 n m. Currently amended
The method according to claim 10, further comprising subjecting the dispersion to ultrasonic disruption after step 1). Original
The method according to claim 10, wherein the porous polymer support is made of a polymer selected from the group consisting of polysulfone, polyethersulfone, polyimide, polyetherimide, polyamide, polyacrylonitrile, cellulose acetate, cellulose triacetate, and polyvinylidene fluoride. Original
The method according to claim 10, wherein the graphene oxide has a size in the range of 0.1 p m to 5 m. Original
The method according to claim 10, wherein the graphene oxide is functionalized graphene oxide prepared by the conversion of the hydroxyl, carboxyl, carbonyl or epoxy groups present in the graphene oxide to ester, ether, amide or amino groups. Original
Canceled
Embodiments described in the patent, grouped by the materials and process steps they use.
2 materials1 process step
Composite separation membrane manufactured by spin coating graphene oxide dispersion on a porous polymer support. Gas permeabilities and selectivities were measured and compared to Comparative Example 1 (spray coating). Spin coating produced membranes with selectivity dependent on gas molecule size and higher CO₂ selectivity than the spray-coated membrane.
2 materials1 process step
Composite separation membrane manufactured by spray coating instead of spin coating. The resulting membrane showed selectivity inversely proportional to molecular weight of gas molecules, and lower CO₂ selectivity compared to the spin-coated membrane of Example 1.
Layer stacks claimed or described, ordered top of device to substrate.
composite separation membrane
Materials described outside the worked examples.
functionalized graphene oxide
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | 10–100 nm | — |
Thickness | 0.5–1 nm |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,232,322Patent drawings and their descriptions. Click a drawing to enlarge it.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A composite separation membrane comprising a porous polymer support and a graphene oxide coating layer formed on the porous polymer support, wherein the coating layer consists of a plurality of graphene oxide layers, each of which comprises pores through which gases pass; wherein the pores present in one of the graphene oxide layers are regularly arranged in a zigzag configuration at an average distance of 0.5 to 1.0 nm apart from the pores present in the graphene oxide layers formed on one or both sides of the one of the g raphene oxide layers. Previously presented
The composite separation membrane according to claim 1, wherein the porous polymer support is made of a polymer selected from the group consisting of polysulfone, polyethersulfone, polyimide, polyetherimide, polyamide, polyacrylonitrile, cellulose acetate, cellulose triacetate, and polyvinylidene fluoride. Original
The composite separation membrane according to claim 1, wherein the graphene oxide has a size in the range of 0.1 p m to 5 m. Original
The composite separation membrane according to claim 1, wherein the graphene oxide is functionalized graphene oxide prepared by the conversion of the hydroxyl, carboxyl, carbonyl or epoxy groups present in the graphene oxide to ester, ether, amide or ammo groups. Previously presented
The composite separation membrane according to claim 1, wherein the graphene oxide coating layer has a thickness of 3 to 20 nm. Currently amended
A membrane for water treatment comprising the composite separation membrane according to claim 1. Previously presented
A memory device comprising the composite separation membrane according to claim 1. Previously presented
An electrode material comprising the composite separation membrane according to claim 1. Previously presented
Canceled
The composite separation membrane according to claim 2, wherein the pores have an average diameter of 0.5 to 1.0 nm. Original
Canceled
A method for manufacturing a composite separation membrane, comprising: 1) dispersing graphene oxide in distilled water to obtain a dispersion; and 2) spin coating the dispersion on a porous polymer support to form a coating layer; wherein the spin coating is performed 3 to times at 2,000 to 4,000 rpm for 15 to 60 seconds each time. Previously presented
The method according to claim 10, wherein the concentration of the graphene oxide in the dispersion obtained in step 1) is from 0.5 to 1.5 g/L. Original
(Cu rr ently amended) The method according to claim 10, wherein the coating layer formed in step 2) has a thickness of 3 to 20 n m. Currently amended
The method according to claim 10, further comprising subjecting the dispersion to ultrasonic disruption after step 1). Original
The method according to claim 10, wherein the porous polymer support is made of a polymer selected from the group consisting of polysulfone, polyethersulfone, polyimide, polyetherimide, polyamide, polyacrylonitrile, cellulose acetate, cellulose triacetate, and polyvinylidene fluoride. Original
The method according to claim 10, wherein the graphene oxide has a size in the range of 0.1 p m to 5 m. Original
The method according to claim 10, wherein the graphene oxide is functionalized graphene oxide prepared by the conversion of the hydroxyl, carboxyl, carbonyl or epoxy groups present in the graphene oxide to ester, ether, amide or amino groups. Original
Canceled
Embodiments described in the patent, grouped by the materials and process steps they use.
2 materials1 process step
Composite separation membrane manufactured by spin coating graphene oxide dispersion on a porous polymer support. Gas permeabilities and selectivities were measured and compared to Comparative Example 1 (spray coating). Spin coating produced membranes with selectivity dependent on gas molecule size and higher CO₂ selectivity than the spray-coated membrane.
2 materials1 process step
Composite separation membrane manufactured by spray coating instead of spin coating. The resulting membrane showed selectivity inversely proportional to molecular weight of gas molecules, and lower CO₂ selectivity compared to the spin-coated membrane of Example 1.
Layer stacks claimed or described, ordered top of device to substrate.
composite separation membrane
Materials described outside the worked examples.
functionalized graphene oxide
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | 10–100 nm | — |
Thickness | 0.5–1 nm |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,232,322Patent drawings and their descriptions. Click a drawing to enlarge it.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A composite separation membrane comprising a porous polymer support and a graphene oxide coating layer formed on the porous polymer support, wherein the coating layer consists of a plurality of graphene oxide layers, each of which comprises pores through which gases pass; wherein the pores present in one of the graphene oxide layers are regularly arranged in a zigzag configuration at an average distance of 0.5 to 1.0 nm apart from the pores present in the graphene oxide layers formed on one or both sides of the one of the g raphene oxide layers. Previously presented
The composite separation membrane according to claim 1, wherein the porous polymer support is made of a polymer selected from the group consisting of polysulfone, polyethersulfone, polyimide, polyetherimide, polyamide, polyacrylonitrile, cellulose acetate, cellulose triacetate, and polyvinylidene fluoride. Original
The composite separation membrane according to claim 1, wherein the graphene oxide has a size in the range of 0.1 p m to 5 m. Original
The composite separation membrane according to claim 1, wherein the graphene oxide is functionalized graphene oxide prepared by the conversion of the hydroxyl, carboxyl, carbonyl or epoxy groups present in the graphene oxide to ester, ether, amide or ammo groups. Previously presented
The composite separation membrane according to claim 1, wherein the graphene oxide coating layer has a thickness of 3 to 20 nm. Currently amended
A membrane for water treatment comprising the composite separation membrane according to claim 1. Previously presented
A memory device comprising the composite separation membrane according to claim 1. Previously presented
An electrode material comprising the composite separation membrane according to claim 1. Previously presented
Canceled
The composite separation membrane according to claim 2, wherein the pores have an average diameter of 0.5 to 1.0 nm. Original
Canceled
A method for manufacturing a composite separation membrane, comprising: 1) dispersing graphene oxide in distilled water to obtain a dispersion; and 2) spin coating the dispersion on a porous polymer support to form a coating layer; wherein the spin coating is performed 3 to times at 2,000 to 4,000 rpm for 15 to 60 seconds each time. Previously presented
The method according to claim 10, wherein the concentration of the graphene oxide in the dispersion obtained in step 1) is from 0.5 to 1.5 g/L. Original
(Cu rr ently amended) The method according to claim 10, wherein the coating layer formed in step 2) has a thickness of 3 to 20 n m. Currently amended
The method according to claim 10, further comprising subjecting the dispersion to ultrasonic disruption after step 1). Original
The method according to claim 10, wherein the porous polymer support is made of a polymer selected from the group consisting of polysulfone, polyethersulfone, polyimide, polyetherimide, polyamide, polyacrylonitrile, cellulose acetate, cellulose triacetate, and polyvinylidene fluoride. Original
The method according to claim 10, wherein the graphene oxide has a size in the range of 0.1 p m to 5 m. Original
The method according to claim 10, wherein the graphene oxide is functionalized graphene oxide prepared by the conversion of the hydroxyl, carboxyl, carbonyl or epoxy groups present in the graphene oxide to ester, ether, amide or amino groups. Original
Canceled
Embodiments described in the patent, grouped by the materials and process steps they use.
2 materials1 process step
Composite separation membrane manufactured by spin coating graphene oxide dispersion on a porous polymer support. Gas permeabilities and selectivities were measured and compared to Comparative Example 1 (spray coating). Spin coating produced membranes with selectivity dependent on gas molecule size and higher CO₂ selectivity than the spray-coated membrane.
2 materials1 process step
Composite separation membrane manufactured by spray coating instead of spin coating. The resulting membrane showed selectivity inversely proportional to molecular weight of gas molecules, and lower CO₂ selectivity compared to the spin-coated membrane of Example 1.
Layer stacks claimed or described, ordered top of device to substrate.
composite separation membrane
Materials described outside the worked examples.
functionalized graphene oxide
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | 10–100 nm | — |
Thickness | 0.5–1 nm |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,232,322Patent drawings and their descriptions. Click a drawing to enlarge it.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A composite separation membrane comprising a porous polymer support and a graphene oxide coating layer formed on the porous polymer support, wherein the coating layer consists of a plurality of graphene oxide layers, each of which comprises pores through which gases pass; wherein the pores present in one of the graphene oxide layers are regularly arranged in a zigzag configuration at an average distance of 0.5 to 1.0 nm apart from the pores present in the graphene oxide layers formed on one or both sides of the one of the g raphene oxide layers. Previously presented
The composite separation membrane according to claim 1, wherein the porous polymer support is made of a polymer selected from the group consisting of polysulfone, polyethersulfone, polyimide, polyetherimide, polyamide, polyacrylonitrile, cellulose acetate, cellulose triacetate, and polyvinylidene fluoride. Original
The composite separation membrane according to claim 1, wherein the graphene oxide has a size in the range of 0.1 p m to 5 m. Original
The composite separation membrane according to claim 1, wherein the graphene oxide is functionalized graphene oxide prepared by the conversion of the hydroxyl, carboxyl, carbonyl or epoxy groups present in the graphene oxide to ester, ether, amide or ammo groups. Previously presented
The composite separation membrane according to claim 1, wherein the graphene oxide coating layer has a thickness of 3 to 20 nm. Currently amended
A membrane for water treatment comprising the composite separation membrane according to claim 1. Previously presented
A memory device comprising the composite separation membrane according to claim 1. Previously presented
An electrode material comprising the composite separation membrane according to claim 1. Previously presented
Canceled
The composite separation membrane according to claim 2, wherein the pores have an average diameter of 0.5 to 1.0 nm. Original
Canceled
A method for manufacturing a composite separation membrane, comprising: 1) dispersing graphene oxide in distilled water to obtain a dispersion; and 2) spin coating the dispersion on a porous polymer support to form a coating layer; wherein the spin coating is performed 3 to times at 2,000 to 4,000 rpm for 15 to 60 seconds each time. Previously presented
The method according to claim 10, wherein the concentration of the graphene oxide in the dispersion obtained in step 1) is from 0.5 to 1.5 g/L. Original
(Cu rr ently amended) The method according to claim 10, wherein the coating layer formed in step 2) has a thickness of 3 to 20 n m. Currently amended
The method according to claim 10, further comprising subjecting the dispersion to ultrasonic disruption after step 1). Original
The method according to claim 10, wherein the porous polymer support is made of a polymer selected from the group consisting of polysulfone, polyethersulfone, polyimide, polyetherimide, polyamide, polyacrylonitrile, cellulose acetate, cellulose triacetate, and polyvinylidene fluoride. Original
The method according to claim 10, wherein the graphene oxide has a size in the range of 0.1 p m to 5 m. Original
The method according to claim 10, wherein the graphene oxide is functionalized graphene oxide prepared by the conversion of the hydroxyl, carboxyl, carbonyl or epoxy groups present in the graphene oxide to ester, ether, amide or amino groups. Original
Canceled
Embodiments described in the patent, grouped by the materials and process steps they use.
2 materials1 process step
Composite separation membrane manufactured by spin coating graphene oxide dispersion on a porous polymer support. Gas permeabilities and selectivities were measured and compared to Comparative Example 1 (spray coating). Spin coating produced membranes with selectivity dependent on gas molecule size and higher CO₂ selectivity than the spray-coated membrane.
2 materials1 process step
Composite separation membrane manufactured by spray coating instead of spin coating. The resulting membrane showed selectivity inversely proportional to molecular weight of gas molecules, and lower CO₂ selectivity compared to the spin-coated membrane of Example 1.
Layer stacks claimed or described, ordered top of device to substrate.
composite separation membrane
Materials described outside the worked examples.
functionalized graphene oxide
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | 10–100 nm | — |
Thickness | 0.5–1 nm |
Related documents with shared materials, methods, properties, or citations.
| — |
Thickness | 3–20 nm | — |
Duration | 15–60 seconds | — |
| — |
Thickness | 3–20 nm | — |
Duration | 15–60 seconds | — |
| — |
Thickness | 3–20 nm | — |
Duration | 15–60 seconds | — |
| — |
Thickness | 3–20 nm | — |
Duration | 15–60 seconds | — |