Patent
US 9,573,312EXFOLIATION OF GRAPHENE BY MULTILAYER COEXTRUSION
Carlos A. Cruz
US
Copyright © 2026 Matter42. All rights reserved.
Patent
Atlas literature
Patent
US 9,573,312Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 is a block diagram illustrating an example device for producing graphene;
FIG. 2 is a block diagram illustrating an example device for producing graphene;
FIG. 3 is a flow chart illustrating an method of producing graphene from graphite; and
FIG. 4 is a flow chart illustrating an example method of delaminating a multi-sheet substance [[;]], all in accordance with at least some examples of the …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
1-22. canceled
An apparatus to produce graphene from graphite, the apparatus comprising: a multilayer co-extrusion device comprising: a feed block including a first processing material and a second processing material, the first processing material including a first graphite material and the second processing material including a second graphite material; [[and]]; a plurality of series-coupled layer multiplication dies coupled to the feed block and configured to shear the first graphite material and the second graphite material, to exfoliate graphene therefrom by co-extrusion of the first processing material and the second processing materialp rocessing material through the plurality of series-coupled layer multiplication dies, and to produce a resulting material including a plurality of alternating layers of the first processing material and the second processing material: and a bath includin g a solvent positioned to accept the resultin g material.
The apparatus of claim 23, wherein the first processing material includes a first substrate material, and wherein the second processing material comprises a second substrate material and the second graphite material is dispersed in the second substrate material.
The apparatus of claim 23, wherein the multilayer co-extrusion device further comprises: a first extruder operably coupled to and configured to supply the first processing material processing material to the feed block; and a second extruder configured to supply the second processing material to the feed block. 2 Application No. 14/176,362 Amendment "B" dated Reply to Office Action dated
The apparatus of claim 23, wherein the plurality of series-coupled layer multiplication dies include at least 11 series-coupled layer multiplication dies.
The apparatus of claim 23, wherein the first processing material includes a first substrate material, and wherein the multilayer co-extrusion device is configured to disperse the second graphite material in a second substrate material.
The apparatus of claim 23, wherein the multilayer co-extrusion device is configured to perform one or more of cold extrusion or low temperature extrusion.
The apparatus of claim 23, wherein the multilayer co-extrusion device is configured to co-extrude the first processing material and the second processing material through one or more of the plurality of series-coupled layer multiplication dies at a temperature of about 25 0 C to about 60 0 C. 3 Application No. 14/176,362 Amendment "B" dated Reply to Office Action dated
The apparatus of claim 23, wherein the first processing material includes a first substrate material and the second processing material includes a second substrate material.
canceled
The apparatus of claim 43, wherein the first substrate material and the second substrate material each comprise one or more of one or more hydrophobic polymers or one or more hydrophilic polymers.
The apparatus of claim 43, wherein one of the first substrate material and the second substrate material comprises one or more hydrophobic polymers; and wherein the other of the first substrate material and the second substrate material comprises one or more hydrophilic polymers.
A method of producing graphene from graphite, the method comprising: dispersing a first graphite material in a first substrate material to form a first processing material; and exfoliating graphene from the first graphite material by co-extrusion of the first processing material and a second processing material through one or more layer multiplication dies to yield a resulting material including individual layers of the first processing material interposed between individual layers of the second processing material, the second processing material comprising a second substrate material. withdrawn
The method of claim 35, further comprising: separating the graphene from the first substrate material and the second substrate material. withdrawn
A method of delaminating a multi-sheet substance, the method comprising: mixing a multisheet substance comprising a plurality of stacked sheets with a first substrate material to form a first processing material; delaminating one or more sheets from the multi-sheet substance by application of shear stress to the first processing material; and separating the one or more delaminated sheets from the first substrate material; wherein the multi-sheet substance comprises a first graphite material; wherein the one or more delaminated sheets comprise graphene; and wherein the first substrate material comprises one or more of an organic polymer or a wax. withdrawn
The method of claim 38, wherein the first graphite material comprises one or more of graphite flake or expanded graphite. 4 Application No. 14/176,362 Amendment "B" dated Reply to Office Action dated withdrawn
The method of claim 38, wherein application of shear stress comprises multilayer co-extrusion of the first processing material and a second processing material, multilayer co-extrusion comprising supplying the first processing material to a feed block from a first extruder, the feed block being fluidicly coupled to a plurality of series coupled layer multiplication dies, and supplying the second processing material to the feed block from a second extruder. withdrawn
The method of claim 38, wherein the first substrate material and the second substrate material each comprise one or more of one or more hydrophobic polymers or one or more hydrophilic polymers. withdrawn
The method of claim 38, wherein one of the first substrate material and the second substrate material comprises one or more hydrophobic polymers; and wherein the other of the first substrate material and the second substrate material comprises one or more hydrophilic polymers. withdrawn
An apparatus to produce graphene from graphite, the apparatus comprising: a multilayer co-extrusion device comprising: a feed block; a first extruder coupled to the feed block and including a first processing material that includes a first graphite material; a second extruder coupled to the feed block and including a second processing material that includes a second graphite material; and a plurality of series-coupled layer multiplication dies coupled to the feed block and configured to shear the first graphite material and the second graphite material, to material, to exfoliate graphene therefrom by co-extrusion of the first processing material 5 Application No. 14/176,362 Amendment "B" dated Reply to Office Action dated and the second processing material through the plurality of series-coupled layer multiplication dies, and to produce a resulting material including a plurality of alternating layers of the first processing material and the second processing material; a source of solvent; and a sprayer operably coupled to the source of solvent and positioned to spray the solvent onto the resultin g material.
The apparatus of claim 44, wherein at least one of the first processing material includes a first substrate material or the second processing material includes a second substrate material.
The apparatus of claim 44, wherein the multilayer co-extrusion device is configured to perform one or more of cold extrusion or low temperature extrusion.
The apparatus of claim 44, wherein the multilayer co-extrusion device is configured to co-extrude the first processing material and the second processing material through one or more of the plurality of series-coupled layer multiplication dies at a temperature of about 25 0 C to about 60 0 C.
Layer stacks claimed or described, ordered top of device to substrate.
multilayer co-extrusion apparatus with bath (claim 23)
No layer stack recorded.
multilayer co-extrusion apparatus with sprayer (claim 44)
No layer stack recorded.
Materials described outside the worked examples.
first graphite material
second graphite material
Additional fabrication and treatment steps described in the patent.
Patent
Atlas literature
Patent
US 9,573,312Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 is a block diagram illustrating an example device for producing graphene;
FIG. 2 is a block diagram illustrating an example device for producing graphene;
FIG. 3 is a flow chart illustrating an method of producing graphene from graphite; and
FIG. 4 is a flow chart illustrating an example method of delaminating a multi-sheet substance [[;]], all in accordance with at least some examples of the …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
1-22. canceled
An apparatus to produce graphene from graphite, the apparatus comprising: a multilayer co-extrusion device comprising: a feed block including a first processing material and a second processing material, the first processing material including a first graphite material and the second processing material including a second graphite material; [[and]]; a plurality of series-coupled layer multiplication dies coupled to the feed block and configured to shear the first graphite material and the second graphite material, to exfoliate graphene therefrom by co-extrusion of the first processing material and the second processing materialp rocessing material through the plurality of series-coupled layer multiplication dies, and to produce a resulting material including a plurality of alternating layers of the first processing material and the second processing material: and a bath includin g a solvent positioned to accept the resultin g material.
The apparatus of claim 23, wherein the first processing material includes a first substrate material, and wherein the second processing material comprises a second substrate material and the second graphite material is dispersed in the second substrate material.
The apparatus of claim 23, wherein the multilayer co-extrusion device further comprises: a first extruder operably coupled to and configured to supply the first processing material processing material to the feed block; and a second extruder configured to supply the second processing material to the feed block. 2 Application No. 14/176,362 Amendment "B" dated Reply to Office Action dated
The apparatus of claim 23, wherein the plurality of series-coupled layer multiplication dies include at least 11 series-coupled layer multiplication dies.
The apparatus of claim 23, wherein the first processing material includes a first substrate material, and wherein the multilayer co-extrusion device is configured to disperse the second graphite material in a second substrate material.
The apparatus of claim 23, wherein the multilayer co-extrusion device is configured to perform one or more of cold extrusion or low temperature extrusion.
The apparatus of claim 23, wherein the multilayer co-extrusion device is configured to co-extrude the first processing material and the second processing material through one or more of the plurality of series-coupled layer multiplication dies at a temperature of about 25 0 C to about 60 0 C. 3 Application No. 14/176,362 Amendment "B" dated Reply to Office Action dated
The apparatus of claim 23, wherein the first processing material includes a first substrate material and the second processing material includes a second substrate material.
canceled
The apparatus of claim 43, wherein the first substrate material and the second substrate material each comprise one or more of one or more hydrophobic polymers or one or more hydrophilic polymers.
The apparatus of claim 43, wherein one of the first substrate material and the second substrate material comprises one or more hydrophobic polymers; and wherein the other of the first substrate material and the second substrate material comprises one or more hydrophilic polymers.
A method of producing graphene from graphite, the method comprising: dispersing a first graphite material in a first substrate material to form a first processing material; and exfoliating graphene from the first graphite material by co-extrusion of the first processing material and a second processing material through one or more layer multiplication dies to yield a resulting material including individual layers of the first processing material interposed between individual layers of the second processing material, the second processing material comprising a second substrate material. withdrawn
The method of claim 35, further comprising: separating the graphene from the first substrate material and the second substrate material. withdrawn
A method of delaminating a multi-sheet substance, the method comprising: mixing a multisheet substance comprising a plurality of stacked sheets with a first substrate material to form a first processing material; delaminating one or more sheets from the multi-sheet substance by application of shear stress to the first processing material; and separating the one or more delaminated sheets from the first substrate material; wherein the multi-sheet substance comprises a first graphite material; wherein the one or more delaminated sheets comprise graphene; and wherein the first substrate material comprises one or more of an organic polymer or a wax. withdrawn
The method of claim 38, wherein the first graphite material comprises one or more of graphite flake or expanded graphite. 4 Application No. 14/176,362 Amendment "B" dated Reply to Office Action dated withdrawn
The method of claim 38, wherein application of shear stress comprises multilayer co-extrusion of the first processing material and a second processing material, multilayer co-extrusion comprising supplying the first processing material to a feed block from a first extruder, the feed block being fluidicly coupled to a plurality of series coupled layer multiplication dies, and supplying the second processing material to the feed block from a second extruder. withdrawn
The method of claim 38, wherein the first substrate material and the second substrate material each comprise one or more of one or more hydrophobic polymers or one or more hydrophilic polymers. withdrawn
The method of claim 38, wherein one of the first substrate material and the second substrate material comprises one or more hydrophobic polymers; and wherein the other of the first substrate material and the second substrate material comprises one or more hydrophilic polymers. withdrawn
An apparatus to produce graphene from graphite, the apparatus comprising: a multilayer co-extrusion device comprising: a feed block; a first extruder coupled to the feed block and including a first processing material that includes a first graphite material; a second extruder coupled to the feed block and including a second processing material that includes a second graphite material; and a plurality of series-coupled layer multiplication dies coupled to the feed block and configured to shear the first graphite material and the second graphite material, to material, to exfoliate graphene therefrom by co-extrusion of the first processing material 5 Application No. 14/176,362 Amendment "B" dated Reply to Office Action dated and the second processing material through the plurality of series-coupled layer multiplication dies, and to produce a resulting material including a plurality of alternating layers of the first processing material and the second processing material; a source of solvent; and a sprayer operably coupled to the source of solvent and positioned to spray the solvent onto the resultin g material.
The apparatus of claim 44, wherein at least one of the first processing material includes a first substrate material or the second processing material includes a second substrate material.
The apparatus of claim 44, wherein the multilayer co-extrusion device is configured to perform one or more of cold extrusion or low temperature extrusion.
The apparatus of claim 44, wherein the multilayer co-extrusion device is configured to co-extrude the first processing material and the second processing material through one or more of the plurality of series-coupled layer multiplication dies at a temperature of about 25 0 C to about 60 0 C.
Layer stacks claimed or described, ordered top of device to substrate.
multilayer co-extrusion apparatus with bath (claim 23)
No layer stack recorded.
multilayer co-extrusion apparatus with sprayer (claim 44)
No layer stack recorded.
Materials described outside the worked examples.
first graphite material
second graphite material
Additional fabrication and treatment steps described in the patent.
Patent
Atlas literature
Patent
US 9,573,312Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 is a block diagram illustrating an example device for producing graphene;
FIG. 2 is a block diagram illustrating an example device for producing graphene;
FIG. 3 is a flow chart illustrating an method of producing graphene from graphite; and
FIG. 4 is a flow chart illustrating an example method of delaminating a multi-sheet substance [[;]], all in accordance with at least some examples of the …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
1-22. canceled
An apparatus to produce graphene from graphite, the apparatus comprising: a multilayer co-extrusion device comprising: a feed block including a first processing material and a second processing material, the first processing material including a first graphite material and the second processing material including a second graphite material; [[and]]; a plurality of series-coupled layer multiplication dies coupled to the feed block and configured to shear the first graphite material and the second graphite material, to exfoliate graphene therefrom by co-extrusion of the first processing material and the second processing materialp rocessing material through the plurality of series-coupled layer multiplication dies, and to produce a resulting material including a plurality of alternating layers of the first processing material and the second processing material: and a bath includin g a solvent positioned to accept the resultin g material.
The apparatus of claim 23, wherein the first processing material includes a first substrate material, and wherein the second processing material comprises a second substrate material and the second graphite material is dispersed in the second substrate material.
The apparatus of claim 23, wherein the multilayer co-extrusion device further comprises: a first extruder operably coupled to and configured to supply the first processing material processing material to the feed block; and a second extruder configured to supply the second processing material to the feed block. 2 Application No. 14/176,362 Amendment "B" dated Reply to Office Action dated
The apparatus of claim 23, wherein the plurality of series-coupled layer multiplication dies include at least 11 series-coupled layer multiplication dies.
The apparatus of claim 23, wherein the first processing material includes a first substrate material, and wherein the multilayer co-extrusion device is configured to disperse the second graphite material in a second substrate material.
The apparatus of claim 23, wherein the multilayer co-extrusion device is configured to perform one or more of cold extrusion or low temperature extrusion.
The apparatus of claim 23, wherein the multilayer co-extrusion device is configured to co-extrude the first processing material and the second processing material through one or more of the plurality of series-coupled layer multiplication dies at a temperature of about 25 0 C to about 60 0 C. 3 Application No. 14/176,362 Amendment "B" dated Reply to Office Action dated
The apparatus of claim 23, wherein the first processing material includes a first substrate material and the second processing material includes a second substrate material.
canceled
The apparatus of claim 43, wherein the first substrate material and the second substrate material each comprise one or more of one or more hydrophobic polymers or one or more hydrophilic polymers.
The apparatus of claim 43, wherein one of the first substrate material and the second substrate material comprises one or more hydrophobic polymers; and wherein the other of the first substrate material and the second substrate material comprises one or more hydrophilic polymers.
A method of producing graphene from graphite, the method comprising: dispersing a first graphite material in a first substrate material to form a first processing material; and exfoliating graphene from the first graphite material by co-extrusion of the first processing material and a second processing material through one or more layer multiplication dies to yield a resulting material including individual layers of the first processing material interposed between individual layers of the second processing material, the second processing material comprising a second substrate material. withdrawn
The method of claim 35, further comprising: separating the graphene from the first substrate material and the second substrate material. withdrawn
A method of delaminating a multi-sheet substance, the method comprising: mixing a multisheet substance comprising a plurality of stacked sheets with a first substrate material to form a first processing material; delaminating one or more sheets from the multi-sheet substance by application of shear stress to the first processing material; and separating the one or more delaminated sheets from the first substrate material; wherein the multi-sheet substance comprises a first graphite material; wherein the one or more delaminated sheets comprise graphene; and wherein the first substrate material comprises one or more of an organic polymer or a wax. withdrawn
The method of claim 38, wherein the first graphite material comprises one or more of graphite flake or expanded graphite. 4 Application No. 14/176,362 Amendment "B" dated Reply to Office Action dated withdrawn
The method of claim 38, wherein application of shear stress comprises multilayer co-extrusion of the first processing material and a second processing material, multilayer co-extrusion comprising supplying the first processing material to a feed block from a first extruder, the feed block being fluidicly coupled to a plurality of series coupled layer multiplication dies, and supplying the second processing material to the feed block from a second extruder. withdrawn
The method of claim 38, wherein the first substrate material and the second substrate material each comprise one or more of one or more hydrophobic polymers or one or more hydrophilic polymers. withdrawn
The method of claim 38, wherein one of the first substrate material and the second substrate material comprises one or more hydrophobic polymers; and wherein the other of the first substrate material and the second substrate material comprises one or more hydrophilic polymers. withdrawn
An apparatus to produce graphene from graphite, the apparatus comprising: a multilayer co-extrusion device comprising: a feed block; a first extruder coupled to the feed block and including a first processing material that includes a first graphite material; a second extruder coupled to the feed block and including a second processing material that includes a second graphite material; and a plurality of series-coupled layer multiplication dies coupled to the feed block and configured to shear the first graphite material and the second graphite material, to material, to exfoliate graphene therefrom by co-extrusion of the first processing material 5 Application No. 14/176,362 Amendment "B" dated Reply to Office Action dated and the second processing material through the plurality of series-coupled layer multiplication dies, and to produce a resulting material including a plurality of alternating layers of the first processing material and the second processing material; a source of solvent; and a sprayer operably coupled to the source of solvent and positioned to spray the solvent onto the resultin g material.
The apparatus of claim 44, wherein at least one of the first processing material includes a first substrate material or the second processing material includes a second substrate material.
The apparatus of claim 44, wherein the multilayer co-extrusion device is configured to perform one or more of cold extrusion or low temperature extrusion.
The apparatus of claim 44, wherein the multilayer co-extrusion device is configured to co-extrude the first processing material and the second processing material through one or more of the plurality of series-coupled layer multiplication dies at a temperature of about 25 0 C to about 60 0 C.
Layer stacks claimed or described, ordered top of device to substrate.
multilayer co-extrusion apparatus with bath (claim 23)
No layer stack recorded.
multilayer co-extrusion apparatus with sprayer (claim 44)
No layer stack recorded.
Materials described outside the worked examples.
first graphite material
second graphite material
Additional fabrication and treatment steps described in the patent.
Patent
Atlas literature
Patent
US 9,573,312Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 is a block diagram illustrating an example device for producing graphene;
FIG. 2 is a block diagram illustrating an example device for producing graphene;
FIG. 3 is a flow chart illustrating an method of producing graphene from graphite; and
FIG. 4 is a flow chart illustrating an example method of delaminating a multi-sheet substance [[;]], all in accordance with at least some examples of the …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
1-22. canceled
An apparatus to produce graphene from graphite, the apparatus comprising: a multilayer co-extrusion device comprising: a feed block including a first processing material and a second processing material, the first processing material including a first graphite material and the second processing material including a second graphite material; [[and]]; a plurality of series-coupled layer multiplication dies coupled to the feed block and configured to shear the first graphite material and the second graphite material, to exfoliate graphene therefrom by co-extrusion of the first processing material and the second processing materialp rocessing material through the plurality of series-coupled layer multiplication dies, and to produce a resulting material including a plurality of alternating layers of the first processing material and the second processing material: and a bath includin g a solvent positioned to accept the resultin g material.
The apparatus of claim 23, wherein the first processing material includes a first substrate material, and wherein the second processing material comprises a second substrate material and the second graphite material is dispersed in the second substrate material.
The apparatus of claim 23, wherein the multilayer co-extrusion device further comprises: a first extruder operably coupled to and configured to supply the first processing material processing material to the feed block; and a second extruder configured to supply the second processing material to the feed block. 2 Application No. 14/176,362 Amendment "B" dated Reply to Office Action dated
The apparatus of claim 23, wherein the plurality of series-coupled layer multiplication dies include at least 11 series-coupled layer multiplication dies.
The apparatus of claim 23, wherein the first processing material includes a first substrate material, and wherein the multilayer co-extrusion device is configured to disperse the second graphite material in a second substrate material.
The apparatus of claim 23, wherein the multilayer co-extrusion device is configured to perform one or more of cold extrusion or low temperature extrusion.
The apparatus of claim 23, wherein the multilayer co-extrusion device is configured to co-extrude the first processing material and the second processing material through one or more of the plurality of series-coupled layer multiplication dies at a temperature of about 25 0 C to about 60 0 C. 3 Application No. 14/176,362 Amendment "B" dated Reply to Office Action dated
The apparatus of claim 23, wherein the first processing material includes a first substrate material and the second processing material includes a second substrate material.
canceled
The apparatus of claim 43, wherein the first substrate material and the second substrate material each comprise one or more of one or more hydrophobic polymers or one or more hydrophilic polymers.
The apparatus of claim 43, wherein one of the first substrate material and the second substrate material comprises one or more hydrophobic polymers; and wherein the other of the first substrate material and the second substrate material comprises one or more hydrophilic polymers.
A method of producing graphene from graphite, the method comprising: dispersing a first graphite material in a first substrate material to form a first processing material; and exfoliating graphene from the first graphite material by co-extrusion of the first processing material and a second processing material through one or more layer multiplication dies to yield a resulting material including individual layers of the first processing material interposed between individual layers of the second processing material, the second processing material comprising a second substrate material. withdrawn
The method of claim 35, further comprising: separating the graphene from the first substrate material and the second substrate material. withdrawn
A method of delaminating a multi-sheet substance, the method comprising: mixing a multisheet substance comprising a plurality of stacked sheets with a first substrate material to form a first processing material; delaminating one or more sheets from the multi-sheet substance by application of shear stress to the first processing material; and separating the one or more delaminated sheets from the first substrate material; wherein the multi-sheet substance comprises a first graphite material; wherein the one or more delaminated sheets comprise graphene; and wherein the first substrate material comprises one or more of an organic polymer or a wax. withdrawn
The method of claim 38, wherein the first graphite material comprises one or more of graphite flake or expanded graphite. 4 Application No. 14/176,362 Amendment "B" dated Reply to Office Action dated withdrawn
The method of claim 38, wherein application of shear stress comprises multilayer co-extrusion of the first processing material and a second processing material, multilayer co-extrusion comprising supplying the first processing material to a feed block from a first extruder, the feed block being fluidicly coupled to a plurality of series coupled layer multiplication dies, and supplying the second processing material to the feed block from a second extruder. withdrawn
The method of claim 38, wherein the first substrate material and the second substrate material each comprise one or more of one or more hydrophobic polymers or one or more hydrophilic polymers. withdrawn
The method of claim 38, wherein one of the first substrate material and the second substrate material comprises one or more hydrophobic polymers; and wherein the other of the first substrate material and the second substrate material comprises one or more hydrophilic polymers. withdrawn
An apparatus to produce graphene from graphite, the apparatus comprising: a multilayer co-extrusion device comprising: a feed block; a first extruder coupled to the feed block and including a first processing material that includes a first graphite material; a second extruder coupled to the feed block and including a second processing material that includes a second graphite material; and a plurality of series-coupled layer multiplication dies coupled to the feed block and configured to shear the first graphite material and the second graphite material, to material, to exfoliate graphene therefrom by co-extrusion of the first processing material 5 Application No. 14/176,362 Amendment "B" dated Reply to Office Action dated and the second processing material through the plurality of series-coupled layer multiplication dies, and to produce a resulting material including a plurality of alternating layers of the first processing material and the second processing material; a source of solvent; and a sprayer operably coupled to the source of solvent and positioned to spray the solvent onto the resultin g material.
The apparatus of claim 44, wherein at least one of the first processing material includes a first substrate material or the second processing material includes a second substrate material.
The apparatus of claim 44, wherein the multilayer co-extrusion device is configured to perform one or more of cold extrusion or low temperature extrusion.
The apparatus of claim 44, wherein the multilayer co-extrusion device is configured to co-extrude the first processing material and the second processing material through one or more of the plurality of series-coupled layer multiplication dies at a temperature of about 25 0 C to about 60 0 C.
Layer stacks claimed or described, ordered top of device to substrate.
multilayer co-extrusion apparatus with bath (claim 23)
No layer stack recorded.
multilayer co-extrusion apparatus with sprayer (claim 44)
No layer stack recorded.
Materials described outside the worked examples.
first graphite material
second graphite material
Additional fabrication and treatment steps described in the patent.
graphene
first substrate material
second substrate material
hydrophobic polymer
hydrophilic polymer
solvent
organic polymer
wax
graphite flake
expanded graphite
graphene
first substrate material
second substrate material
hydrophobic polymer
hydrophilic polymer
solvent
organic polymer
wax
graphite flake
expanded graphite
graphene
first substrate material
second substrate material
hydrophobic polymer
hydrophilic polymer
solvent
organic polymer
wax
graphite flake
expanded graphite
graphene
first substrate material
second substrate material
hydrophobic polymer
hydrophilic polymer
solvent
organic polymer
wax
graphite flake
expanded graphite