Patent
US 11,103,837NANOPOROUS GRAPHENE MEMBRANES
Manoj K. Kolel-Veetil
US
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Patent
Atlas literature
Patent
US 11,103,837Patent 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.
An article comprising: a nanoporous membrane; a nanoporous graphene sheet supported by the nanoporous membrane; chemical functionalization covalently bound on only a side of the nanoporous graphene sheet opposed to the nanoporous membrane. Currently amended
The article of claim 1, wherein the nanoporous membrane comprises alumina, a polyamide, a polysulfone, or a polythiosulfone. Original
The article of claim 1, wherein the nanoporous graphene sheet comprises pores less than 20 nm in diameter. Original
The article of claim 1, wherein the nanoporous graphene sheet comprises pores less than 10 nm in diameter. Original
The article of claim 1, wherein the nanoporous graphene sheet comprises pores that are subnanometer in diameter. Original
The article of claim 1, wherein the chemical functionalization is fluoro, hydroxyl, carboxyl, amino, or 3,3-bis(trifluoromethyl)-3-hydroxylpropylamino. Previously presented
A membrane comprising: a first article of claim 1; and a second article of claim 1 layered on the first article; wherein the articles are layered with the chemical functionalization of both articles facing each other. Previously presented
The article of claim 1, wherein the chemical functionalization is 3,3 -bi s(trifluoromethyl)-3-hydroxylpropylamino. Previously presented
The article of claim 1, wherein the article is made by a method comprising: depositing a layer of a diblock copolymer onto a graphene sheet; etching a minor phase of the diblock copolymer and a portion of the graphene in contact with the minor phase to form a nanoporous article comprising a nanoporous layer of a polymer and a nanoporous graphene sheet; removing the nanoporous layer of a polymer; layering the nanoporous graphene sheet onto a nanoporous membrane with the nanoporous graphene sheet supported by the nanoporous membrane; removing any substrate from the nanoporous graphene sheet opposed to the nanoporous membrane; and chemically functionalizing the graphene sheet by covalent bonding to form a functionalized nanoporous article. New
Canceled
(withdrawn-currently amended) A method comprising: depositing a layer of a diblock copolymer onto a graphene sheet; etching a minor phase of the diblock copolymer and a portion of the graphene in contact with the minor phase to form a nanoporous article comprising a nanoporous layer of a polymer and a nanoporous graphene sheet; removing the nanoporous layer of a polymer; layering the nanoporous graphene sheet onto a nanoporous membrane with the nanoporous graphene sheet supported by the nanoporous membrane; removing any substrate from the nanoporous graphene sheet opposed to the nanoporous membrane; and chemically functionalizing the graphene sheet by covalent bonding to form a functionalized nanoporous article. Currently amended
Canceled
The method of claim 18, further comprising: layering two of the functionalized nanoporous articles together with the chemical functionalizations facing each other. Withdrawn
Layer stacks claimed or described, ordered top of device to substrate.
functionalized nanoporous graphene filtration article
hybrid delta membrane (two functionalized nanoporous graphene articles layered together)
Materials described outside the worked examples.
nanoporous membrane
nanoporous graphene sheet
alumina
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | 10–20 nm | — |
Thickness | 0.6–0.9 nm |
Patent
Atlas literature
Patent
US 11,103,837Patent 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.
An article comprising: a nanoporous membrane; a nanoporous graphene sheet supported by the nanoporous membrane; chemical functionalization covalently bound on only a side of the nanoporous graphene sheet opposed to the nanoporous membrane. Currently amended
The article of claim 1, wherein the nanoporous membrane comprises alumina, a polyamide, a polysulfone, or a polythiosulfone. Original
The article of claim 1, wherein the nanoporous graphene sheet comprises pores less than 20 nm in diameter. Original
The article of claim 1, wherein the nanoporous graphene sheet comprises pores less than 10 nm in diameter. Original
The article of claim 1, wherein the nanoporous graphene sheet comprises pores that are subnanometer in diameter. Original
The article of claim 1, wherein the chemical functionalization is fluoro, hydroxyl, carboxyl, amino, or 3,3-bis(trifluoromethyl)-3-hydroxylpropylamino. Previously presented
A membrane comprising: a first article of claim 1; and a second article of claim 1 layered on the first article; wherein the articles are layered with the chemical functionalization of both articles facing each other. Previously presented
The article of claim 1, wherein the chemical functionalization is 3,3 -bi s(trifluoromethyl)-3-hydroxylpropylamino. Previously presented
The article of claim 1, wherein the article is made by a method comprising: depositing a layer of a diblock copolymer onto a graphene sheet; etching a minor phase of the diblock copolymer and a portion of the graphene in contact with the minor phase to form a nanoporous article comprising a nanoporous layer of a polymer and a nanoporous graphene sheet; removing the nanoporous layer of a polymer; layering the nanoporous graphene sheet onto a nanoporous membrane with the nanoporous graphene sheet supported by the nanoporous membrane; removing any substrate from the nanoporous graphene sheet opposed to the nanoporous membrane; and chemically functionalizing the graphene sheet by covalent bonding to form a functionalized nanoporous article. New
Canceled
(withdrawn-currently amended) A method comprising: depositing a layer of a diblock copolymer onto a graphene sheet; etching a minor phase of the diblock copolymer and a portion of the graphene in contact with the minor phase to form a nanoporous article comprising a nanoporous layer of a polymer and a nanoporous graphene sheet; removing the nanoporous layer of a polymer; layering the nanoporous graphene sheet onto a nanoporous membrane with the nanoporous graphene sheet supported by the nanoporous membrane; removing any substrate from the nanoporous graphene sheet opposed to the nanoporous membrane; and chemically functionalizing the graphene sheet by covalent bonding to form a functionalized nanoporous article. Currently amended
Canceled
The method of claim 18, further comprising: layering two of the functionalized nanoporous articles together with the chemical functionalizations facing each other. Withdrawn
Layer stacks claimed or described, ordered top of device to substrate.
functionalized nanoporous graphene filtration article
hybrid delta membrane (two functionalized nanoporous graphene articles layered together)
Materials described outside the worked examples.
nanoporous membrane
nanoporous graphene sheet
alumina
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | 10–20 nm | — |
Thickness | 0.6–0.9 nm |
Patent
Atlas literature
Patent
US 11,103,837Patent 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.
An article comprising: a nanoporous membrane; a nanoporous graphene sheet supported by the nanoporous membrane; chemical functionalization covalently bound on only a side of the nanoporous graphene sheet opposed to the nanoporous membrane. Currently amended
The article of claim 1, wherein the nanoporous membrane comprises alumina, a polyamide, a polysulfone, or a polythiosulfone. Original
The article of claim 1, wherein the nanoporous graphene sheet comprises pores less than 20 nm in diameter. Original
The article of claim 1, wherein the nanoporous graphene sheet comprises pores less than 10 nm in diameter. Original
The article of claim 1, wherein the nanoporous graphene sheet comprises pores that are subnanometer in diameter. Original
The article of claim 1, wherein the chemical functionalization is fluoro, hydroxyl, carboxyl, amino, or 3,3-bis(trifluoromethyl)-3-hydroxylpropylamino. Previously presented
A membrane comprising: a first article of claim 1; and a second article of claim 1 layered on the first article; wherein the articles are layered with the chemical functionalization of both articles facing each other. Previously presented
The article of claim 1, wherein the chemical functionalization is 3,3 -bi s(trifluoromethyl)-3-hydroxylpropylamino. Previously presented
The article of claim 1, wherein the article is made by a method comprising: depositing a layer of a diblock copolymer onto a graphene sheet; etching a minor phase of the diblock copolymer and a portion of the graphene in contact with the minor phase to form a nanoporous article comprising a nanoporous layer of a polymer and a nanoporous graphene sheet; removing the nanoporous layer of a polymer; layering the nanoporous graphene sheet onto a nanoporous membrane with the nanoporous graphene sheet supported by the nanoporous membrane; removing any substrate from the nanoporous graphene sheet opposed to the nanoporous membrane; and chemically functionalizing the graphene sheet by covalent bonding to form a functionalized nanoporous article. New
Canceled
(withdrawn-currently amended) A method comprising: depositing a layer of a diblock copolymer onto a graphene sheet; etching a minor phase of the diblock copolymer and a portion of the graphene in contact with the minor phase to form a nanoporous article comprising a nanoporous layer of a polymer and a nanoporous graphene sheet; removing the nanoporous layer of a polymer; layering the nanoporous graphene sheet onto a nanoporous membrane with the nanoporous graphene sheet supported by the nanoporous membrane; removing any substrate from the nanoporous graphene sheet opposed to the nanoporous membrane; and chemically functionalizing the graphene sheet by covalent bonding to form a functionalized nanoporous article. Currently amended
Canceled
The method of claim 18, further comprising: layering two of the functionalized nanoporous articles together with the chemical functionalizations facing each other. Withdrawn
Layer stacks claimed or described, ordered top of device to substrate.
functionalized nanoporous graphene filtration article
hybrid delta membrane (two functionalized nanoporous graphene articles layered together)
Materials described outside the worked examples.
nanoporous membrane
nanoporous graphene sheet
alumina
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | 10–20 nm | — |
Thickness | 0.6–0.9 nm |
Patent
Atlas literature
Patent
US 11,103,837Patent 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.
An article comprising: a nanoporous membrane; a nanoporous graphene sheet supported by the nanoporous membrane; chemical functionalization covalently bound on only a side of the nanoporous graphene sheet opposed to the nanoporous membrane. Currently amended
The article of claim 1, wherein the nanoporous membrane comprises alumina, a polyamide, a polysulfone, or a polythiosulfone. Original
The article of claim 1, wherein the nanoporous graphene sheet comprises pores less than 20 nm in diameter. Original
The article of claim 1, wherein the nanoporous graphene sheet comprises pores less than 10 nm in diameter. Original
The article of claim 1, wherein the nanoporous graphene sheet comprises pores that are subnanometer in diameter. Original
The article of claim 1, wherein the chemical functionalization is fluoro, hydroxyl, carboxyl, amino, or 3,3-bis(trifluoromethyl)-3-hydroxylpropylamino. Previously presented
A membrane comprising: a first article of claim 1; and a second article of claim 1 layered on the first article; wherein the articles are layered with the chemical functionalization of both articles facing each other. Previously presented
The article of claim 1, wherein the chemical functionalization is 3,3 -bi s(trifluoromethyl)-3-hydroxylpropylamino. Previously presented
The article of claim 1, wherein the article is made by a method comprising: depositing a layer of a diblock copolymer onto a graphene sheet; etching a minor phase of the diblock copolymer and a portion of the graphene in contact with the minor phase to form a nanoporous article comprising a nanoporous layer of a polymer and a nanoporous graphene sheet; removing the nanoporous layer of a polymer; layering the nanoporous graphene sheet onto a nanoporous membrane with the nanoporous graphene sheet supported by the nanoporous membrane; removing any substrate from the nanoporous graphene sheet opposed to the nanoporous membrane; and chemically functionalizing the graphene sheet by covalent bonding to form a functionalized nanoporous article. New
Canceled
(withdrawn-currently amended) A method comprising: depositing a layer of a diblock copolymer onto a graphene sheet; etching a minor phase of the diblock copolymer and a portion of the graphene in contact with the minor phase to form a nanoporous article comprising a nanoporous layer of a polymer and a nanoporous graphene sheet; removing the nanoporous layer of a polymer; layering the nanoporous graphene sheet onto a nanoporous membrane with the nanoporous graphene sheet supported by the nanoporous membrane; removing any substrate from the nanoporous graphene sheet opposed to the nanoporous membrane; and chemically functionalizing the graphene sheet by covalent bonding to form a functionalized nanoporous article. Currently amended
Canceled
The method of claim 18, further comprising: layering two of the functionalized nanoporous articles together with the chemical functionalizations facing each other. Withdrawn
Layer stacks claimed or described, ordered top of device to substrate.
functionalized nanoporous graphene filtration article
hybrid delta membrane (two functionalized nanoporous graphene articles layered together)
Materials described outside the worked examples.
nanoporous membrane
nanoporous graphene sheet
alumina
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | 10–20 nm | — |
Thickness | 0.6–0.9 nm |
polyamide
polysulfone
polythiosulfone
3,3-bis(trifluoromethyl)-3-hydroxylpropylamino
diblock copolymer
polystyrene-polybutadiene diblock copolymer
polystyrene-polymethylmethacrylate diblock copolymer
polystyrene-polybutadiene (PS-pb-PB)
| — |
Thickness | ≤ 20 nm | — |
Thickness | ≤ 10 nm | — |
polyamide
polysulfone
polythiosulfone
3,3-bis(trifluoromethyl)-3-hydroxylpropylamino
diblock copolymer
polystyrene-polybutadiene diblock copolymer
polystyrene-polymethylmethacrylate diblock copolymer
polystyrene-polybutadiene (PS-pb-PB)
| — |
Thickness | ≤ 20 nm | — |
Thickness | ≤ 10 nm | — |
polyamide
polysulfone
polythiosulfone
3,3-bis(trifluoromethyl)-3-hydroxylpropylamino
diblock copolymer
polystyrene-polybutadiene diblock copolymer
polystyrene-polymethylmethacrylate diblock copolymer
polystyrene-polybutadiene (PS-pb-PB)
| — |
Thickness | ≤ 20 nm | — |
Thickness | ≤ 10 nm | — |
polyamide
polysulfone
polythiosulfone
3,3-bis(trifluoromethyl)-3-hydroxylpropylamino
diblock copolymer
polystyrene-polybutadiene diblock copolymer
polystyrene-polymethylmethacrylate diblock copolymer
polystyrene-polybutadiene (PS-pb-PB)
| — |
Thickness | ≤ 20 nm | — |
Thickness | ≤ 10 nm | — |