Patent
US 10,934,407LOW VOLATILITY, HIGH EFFICIENCY GAS BARRIER COATING FOR CRYO-COMPRESSED HYDROGEN TANKS
Gabriel Iftime
US
Copyright © 2026 Matter42. All rights reserved.
Patent
Atlas literature
Patent
US 10,934,407Patent drawings and their descriptions. Click a drawing to enlarge it.
Figure 1 shows a prior art embodiment of a tank wall.
Figure 2 shows an embodiment of a tank wall having a non-volatile gas barrier.
Figure 3 shows a comparison of gas diffusion paths.
Figure 4 shows chemically linked graphene networks.
Figure 5 shows boding of graphene sheets onto the edges of carbon fibers from the CFRP tank wall.
Figure 6 shows a flowchart of an embodiment of a method to coat an item with a nonvolatile gas barrier.
Figure 7 shows a six axis deposition system.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A method, comprising: depositing graphene into a hardener; mixing the hardener and the graphene to produce a composite mixture; adding a resin material to the composite mixture to produce low-outgassing epoxy graphene material having a total mass loss of less than 1 percent and a collected volatile condensable materials of less than 0.1 percent; aligning graphene sheets within the epoxy graphene material in an in-plane orientation to produce aligned epoxy graphene material; coating a structure with the aligned epoxy graphene material; and curing the aligned epoxy graphene material. Currently amended
The method of claim 1, further comprising exfoliating the graphene prior to depositing the graphene into a hardener. Original
The method of claim 1, wherein mixing comprises using a high shear mixer. Original
The method of claim 1, wherein coating a structure with the epoxy graphene material comprises using a robotic arm with a dispensing nozzle configured to align the graphene sheets in the in-plane orientation. Previously presented
The method of claim 1, wherein coating a structure comprises coating a structure with a layer of the epoxy graphene material having a thickness between 10 and 200 micrometers. Original
The method of claim 1, wherein coating a structure comprises coating a carbon-fiber reinforced polymer tank. Original
A cured composition of matter manufactured using the method of claim 1, the cured composition comprising horizontally aligned graphene sheets dispersed in a NASA- approved low outgassing epoxy. Withdrawn
The method of claim 1, wherein the graphene is an amino-functionalized graphene sheet.
Canceled
Canceled
Please add the following claims: Canceled
Layer stacks claimed or described, ordered top of device to substrate.
cryo-compressed hydrogen tank with gas barrier coating
Materials described outside the worked examples.
graphene
hardener
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
TML (NASA ASTM E595-07) | — | epoxy graphene material |
CVCM (NASA ASTM E595-07) | — |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,934,407Patent drawings and their descriptions. Click a drawing to enlarge it.
Figure 1 shows a prior art embodiment of a tank wall.
Figure 2 shows an embodiment of a tank wall having a non-volatile gas barrier.
Figure 3 shows a comparison of gas diffusion paths.
Figure 4 shows chemically linked graphene networks.
Figure 5 shows boding of graphene sheets onto the edges of carbon fibers from the CFRP tank wall.
Figure 6 shows a flowchart of an embodiment of a method to coat an item with a nonvolatile gas barrier.
Figure 7 shows a six axis deposition system.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A method, comprising: depositing graphene into a hardener; mixing the hardener and the graphene to produce a composite mixture; adding a resin material to the composite mixture to produce low-outgassing epoxy graphene material having a total mass loss of less than 1 percent and a collected volatile condensable materials of less than 0.1 percent; aligning graphene sheets within the epoxy graphene material in an in-plane orientation to produce aligned epoxy graphene material; coating a structure with the aligned epoxy graphene material; and curing the aligned epoxy graphene material. Currently amended
The method of claim 1, further comprising exfoliating the graphene prior to depositing the graphene into a hardener. Original
The method of claim 1, wherein mixing comprises using a high shear mixer. Original
The method of claim 1, wherein coating a structure with the epoxy graphene material comprises using a robotic arm with a dispensing nozzle configured to align the graphene sheets in the in-plane orientation. Previously presented
The method of claim 1, wherein coating a structure comprises coating a structure with a layer of the epoxy graphene material having a thickness between 10 and 200 micrometers. Original
The method of claim 1, wherein coating a structure comprises coating a carbon-fiber reinforced polymer tank. Original
A cured composition of matter manufactured using the method of claim 1, the cured composition comprising horizontally aligned graphene sheets dispersed in a NASA- approved low outgassing epoxy. Withdrawn
The method of claim 1, wherein the graphene is an amino-functionalized graphene sheet.
Canceled
Canceled
Please add the following claims: Canceled
Layer stacks claimed or described, ordered top of device to substrate.
cryo-compressed hydrogen tank with gas barrier coating
Materials described outside the worked examples.
graphene
hardener
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
TML (NASA ASTM E595-07) | — | epoxy graphene material |
CVCM (NASA ASTM E595-07) | — |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,934,407Patent drawings and their descriptions. Click a drawing to enlarge it.
Figure 1 shows a prior art embodiment of a tank wall.
Figure 2 shows an embodiment of a tank wall having a non-volatile gas barrier.
Figure 3 shows a comparison of gas diffusion paths.
Figure 4 shows chemically linked graphene networks.
Figure 5 shows boding of graphene sheets onto the edges of carbon fibers from the CFRP tank wall.
Figure 6 shows a flowchart of an embodiment of a method to coat an item with a nonvolatile gas barrier.
Figure 7 shows a six axis deposition system.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A method, comprising: depositing graphene into a hardener; mixing the hardener and the graphene to produce a composite mixture; adding a resin material to the composite mixture to produce low-outgassing epoxy graphene material having a total mass loss of less than 1 percent and a collected volatile condensable materials of less than 0.1 percent; aligning graphene sheets within the epoxy graphene material in an in-plane orientation to produce aligned epoxy graphene material; coating a structure with the aligned epoxy graphene material; and curing the aligned epoxy graphene material. Currently amended
The method of claim 1, further comprising exfoliating the graphene prior to depositing the graphene into a hardener. Original
The method of claim 1, wherein mixing comprises using a high shear mixer. Original
The method of claim 1, wherein coating a structure with the epoxy graphene material comprises using a robotic arm with a dispensing nozzle configured to align the graphene sheets in the in-plane orientation. Previously presented
The method of claim 1, wherein coating a structure comprises coating a structure with a layer of the epoxy graphene material having a thickness between 10 and 200 micrometers. Original
The method of claim 1, wherein coating a structure comprises coating a carbon-fiber reinforced polymer tank. Original
A cured composition of matter manufactured using the method of claim 1, the cured composition comprising horizontally aligned graphene sheets dispersed in a NASA- approved low outgassing epoxy. Withdrawn
The method of claim 1, wherein the graphene is an amino-functionalized graphene sheet.
Canceled
Canceled
Please add the following claims: Canceled
Layer stacks claimed or described, ordered top of device to substrate.
cryo-compressed hydrogen tank with gas barrier coating
Materials described outside the worked examples.
graphene
hardener
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
TML (NASA ASTM E595-07) | — | epoxy graphene material |
CVCM (NASA ASTM E595-07) | — |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,934,407Patent drawings and their descriptions. Click a drawing to enlarge it.
Figure 1 shows a prior art embodiment of a tank wall.
Figure 2 shows an embodiment of a tank wall having a non-volatile gas barrier.
Figure 3 shows a comparison of gas diffusion paths.
Figure 4 shows chemically linked graphene networks.
Figure 5 shows boding of graphene sheets onto the edges of carbon fibers from the CFRP tank wall.
Figure 6 shows a flowchart of an embodiment of a method to coat an item with a nonvolatile gas barrier.
Figure 7 shows a six axis deposition system.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A method, comprising: depositing graphene into a hardener; mixing the hardener and the graphene to produce a composite mixture; adding a resin material to the composite mixture to produce low-outgassing epoxy graphene material having a total mass loss of less than 1 percent and a collected volatile condensable materials of less than 0.1 percent; aligning graphene sheets within the epoxy graphene material in an in-plane orientation to produce aligned epoxy graphene material; coating a structure with the aligned epoxy graphene material; and curing the aligned epoxy graphene material. Currently amended
The method of claim 1, further comprising exfoliating the graphene prior to depositing the graphene into a hardener. Original
The method of claim 1, wherein mixing comprises using a high shear mixer. Original
The method of claim 1, wherein coating a structure with the epoxy graphene material comprises using a robotic arm with a dispensing nozzle configured to align the graphene sheets in the in-plane orientation. Previously presented
The method of claim 1, wherein coating a structure comprises coating a structure with a layer of the epoxy graphene material having a thickness between 10 and 200 micrometers. Original
The method of claim 1, wherein coating a structure comprises coating a carbon-fiber reinforced polymer tank. Original
A cured composition of matter manufactured using the method of claim 1, the cured composition comprising horizontally aligned graphene sheets dispersed in a NASA- approved low outgassing epoxy. Withdrawn
The method of claim 1, wherein the graphene is an amino-functionalized graphene sheet.
Canceled
Canceled
Please add the following claims: Canceled
Layer stacks claimed or described, ordered top of device to substrate.
cryo-compressed hydrogen tank with gas barrier coating
Materials described outside the worked examples.
graphene
hardener
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
TML (NASA ASTM E595-07) | — | epoxy graphene material |
CVCM (NASA ASTM E595-07) | — |
Related documents with shared materials, methods, properties, or citations.
epoxy graphene material
carbon-fiber reinforced polymer (CFRP)
NASA-approved low outgassing epoxy
amino-functionalized graphene sheet
exfoliated graphene sheets
graphene oxide
hydrocarbon gas permeability of cured graphene/epoxy coating | — | epoxy graphene material |
Thickness | 1000–1000000 nm | — |
— | ≤ 5 W | — |
Thickness | 10–200 µm | — |
epoxy graphene material
carbon-fiber reinforced polymer (CFRP)
NASA-approved low outgassing epoxy
amino-functionalized graphene sheet
exfoliated graphene sheets
graphene oxide
hydrocarbon gas permeability of cured graphene/epoxy coating | — | epoxy graphene material |
Thickness | 1000–1000000 nm | — |
— | ≤ 5 W | — |
Thickness | 10–200 µm | — |
epoxy graphene material
carbon-fiber reinforced polymer (CFRP)
NASA-approved low outgassing epoxy
amino-functionalized graphene sheet
exfoliated graphene sheets
graphene oxide
hydrocarbon gas permeability of cured graphene/epoxy coating | — | epoxy graphene material |
Thickness | 1000–1000000 nm | — |
— | ≤ 5 W | — |
Thickness | 10–200 µm | — |
epoxy graphene material
carbon-fiber reinforced polymer (CFRP)
NASA-approved low outgassing epoxy
amino-functionalized graphene sheet
exfoliated graphene sheets
graphene oxide
hydrocarbon gas permeability of cured graphene/epoxy coating | — | epoxy graphene material |
Thickness | 1000–1000000 nm | — |
— | ≤ 5 W | — |
Thickness | 10–200 µm | — |