Patent
US 9,327,981METHOD FOR PRODUCING THIN GRAPHENE NANOPLATELETS AND PRECURSOR THEREOF
Chuen-Ming Gee
US
Copyright © 2026 Matter42. All rights reserved.
Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 is a flow chart of a method for producing a thin graphene nanoplatelet precursor in accordance with the present invention; and [0014]
FIG. 2 shows Raman spectra of thin graphene nanoplatelets in accordance with the present invention.
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 of producing thin graphene nanoplatelet precursor, comprising the steps of: (A) providing a carbon precursor and a filling material, and mixing the carbon precursor with the filling material by ball milling, planetary rotation mixing, or high speed homogenous mixing to form a uniform mixture, wherein the carbon precursor is made of a polymer material selected from a first collection of petroleum pitch, coke tar pitch, mesophase pitch, phenolic resin, furan resin, epoxy resin and polyimide, or the carbon precursor is made of any mixture of the first collection, and wherein the filling material is one selected from a second collection of petroleum coke, coal coke, natural graphite, thermally cracked graphite, carbon nanotube, carbon fiber, mesophase carbon microsphere, vapor grown carbon fiber, graphite fiber and artificial graphite powder, or the filling material is any mixture of the second collection; (B) performing a forming process of the uniform mixture to obtain a composite material, wherein the forming process is one selected from oil pressing, mold pressing, squeezing, extrusion, injection, spinning, and melt spinning forming process; and (C) performing a heat treatment of the composite material in a gaseous environment to obtain a thin graphene nanoplatelet precursor.
The method of producing thin graphene nanoplatelet precursor according to claim 1, wherein the carbon precursor and the filling material have percentages by weight in the ratio of 1: 1~ 19.
The method of producing thin graphene nanoplatelet precursor accord in g to claim 1, wherein the gas is one selected from the collection of nitrogen, argon.
The method of producing thin graphene nanoplatelet precursor according to claim 1, wherein the heat treatment is performed at a temperature range of 150~ 3,2 00°C.
A method of producing thin graphene nanoplatelets, comprising the steps of: (a) providing a thin graphene nanoplatelet precursor produced according to claim 1; (b) using an electrochemical method to process the thin graphene nanoplatelet precursor, wherein the electrochemical method includes an electrolytic solution; and (c) filtering the electrolytic solution to obtain a thin graphene nanoplatelet.
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canceled
canceled
Page 2 of 11 Ser. No. 13/719,206 At t. Docket No.: Alfred-064-3 1 canceled
Materials described outside the worked examples.
carbon precursor
filling material
petroleum pitch
coke tar pitch
mesophase pitch
phenolic resin
furan resin
epoxy resin
polyimide
petroleum coke
coal coke
natural graphite
thermally cracked graphite
carbon nanotube
carbon fiber
mesophase carbon microsphere
vapor grown carbon fiber
graphite fiber
artificial graphite powder
nitrogen
N₂
argon
Ar
thin graphene nanoplatelet precursor
thin graphene nanoplatelet
sulfuric acid
H₂SO₄
peroxide
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 2 shows Raman spectra of thin graphene nanoplatelets in accordance with the present invention.
Semiconductor Interconnect Structure Having Graphene-Capped Metal Interconnects
Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 is a flow chart of a method for producing a thin graphene nanoplatelet precursor in accordance with the present invention; and [0014]
FIG. 2 shows Raman spectra of thin graphene nanoplatelets in accordance with the present invention.
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 of producing thin graphene nanoplatelet precursor, comprising the steps of: (A) providing a carbon precursor and a filling material, and mixing the carbon precursor with the filling material by ball milling, planetary rotation mixing, or high speed homogenous mixing to form a uniform mixture, wherein the carbon precursor is made of a polymer material selected from a first collection of petroleum pitch, coke tar pitch, mesophase pitch, phenolic resin, furan resin, epoxy resin and polyimide, or the carbon precursor is made of any mixture of the first collection, and wherein the filling material is one selected from a second collection of petroleum coke, coal coke, natural graphite, thermally cracked graphite, carbon nanotube, carbon fiber, mesophase carbon microsphere, vapor grown carbon fiber, graphite fiber and artificial graphite powder, or the filling material is any mixture of the second collection; (B) performing a forming process of the uniform mixture to obtain a composite material, wherein the forming process is one selected from oil pressing, mold pressing, squeezing, extrusion, injection, spinning, and melt spinning forming process; and (C) performing a heat treatment of the composite material in a gaseous environment to obtain a thin graphene nanoplatelet precursor.
The method of producing thin graphene nanoplatelet precursor according to claim 1, wherein the carbon precursor and the filling material have percentages by weight in the ratio of 1: 1~ 19.
The method of producing thin graphene nanoplatelet precursor accord in g to claim 1, wherein the gas is one selected from the collection of nitrogen, argon.
The method of producing thin graphene nanoplatelet precursor according to claim 1, wherein the heat treatment is performed at a temperature range of 150~ 3,2 00°C.
A method of producing thin graphene nanoplatelets, comprising the steps of: (a) providing a thin graphene nanoplatelet precursor produced according to claim 1; (b) using an electrochemical method to process the thin graphene nanoplatelet precursor, wherein the electrochemical method includes an electrolytic solution; and (c) filtering the electrolytic solution to obtain a thin graphene nanoplatelet.
- 4. canceled
canceled
canceled
Page 2 of 11 Ser. No. 13/719,206 At t. Docket No.: Alfred-064-3 1 canceled
Materials described outside the worked examples.
carbon precursor
filling material
petroleum pitch
coke tar pitch
mesophase pitch
phenolic resin
furan resin
epoxy resin
polyimide
petroleum coke
coal coke
natural graphite
thermally cracked graphite
carbon nanotube
carbon fiber
mesophase carbon microsphere
vapor grown carbon fiber
graphite fiber
artificial graphite powder
nitrogen
N₂
argon
Ar
thin graphene nanoplatelet precursor
thin graphene nanoplatelet
sulfuric acid
H₂SO₄
peroxide
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 2 shows Raman spectra of thin graphene nanoplatelets in accordance with the present invention.
Semiconductor Interconnect Structure Having Graphene-Capped Metal Interconnects
Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 is a flow chart of a method for producing a thin graphene nanoplatelet precursor in accordance with the present invention; and [0014]
FIG. 2 shows Raman spectra of thin graphene nanoplatelets in accordance with the present invention.
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 of producing thin graphene nanoplatelet precursor, comprising the steps of: (A) providing a carbon precursor and a filling material, and mixing the carbon precursor with the filling material by ball milling, planetary rotation mixing, or high speed homogenous mixing to form a uniform mixture, wherein the carbon precursor is made of a polymer material selected from a first collection of petroleum pitch, coke tar pitch, mesophase pitch, phenolic resin, furan resin, epoxy resin and polyimide, or the carbon precursor is made of any mixture of the first collection, and wherein the filling material is one selected from a second collection of petroleum coke, coal coke, natural graphite, thermally cracked graphite, carbon nanotube, carbon fiber, mesophase carbon microsphere, vapor grown carbon fiber, graphite fiber and artificial graphite powder, or the filling material is any mixture of the second collection; (B) performing a forming process of the uniform mixture to obtain a composite material, wherein the forming process is one selected from oil pressing, mold pressing, squeezing, extrusion, injection, spinning, and melt spinning forming process; and (C) performing a heat treatment of the composite material in a gaseous environment to obtain a thin graphene nanoplatelet precursor.
The method of producing thin graphene nanoplatelet precursor according to claim 1, wherein the carbon precursor and the filling material have percentages by weight in the ratio of 1: 1~ 19.
The method of producing thin graphene nanoplatelet precursor accord in g to claim 1, wherein the gas is one selected from the collection of nitrogen, argon.
The method of producing thin graphene nanoplatelet precursor according to claim 1, wherein the heat treatment is performed at a temperature range of 150~ 3,2 00°C.
A method of producing thin graphene nanoplatelets, comprising the steps of: (a) providing a thin graphene nanoplatelet precursor produced according to claim 1; (b) using an electrochemical method to process the thin graphene nanoplatelet precursor, wherein the electrochemical method includes an electrolytic solution; and (c) filtering the electrolytic solution to obtain a thin graphene nanoplatelet.
- 4. canceled
canceled
canceled
Page 2 of 11 Ser. No. 13/719,206 At t. Docket No.: Alfred-064-3 1 canceled
Materials described outside the worked examples.
carbon precursor
filling material
petroleum pitch
coke tar pitch
mesophase pitch
phenolic resin
furan resin
epoxy resin
polyimide
petroleum coke
coal coke
natural graphite
thermally cracked graphite
carbon nanotube
carbon fiber
mesophase carbon microsphere
vapor grown carbon fiber
graphite fiber
artificial graphite powder
nitrogen
N₂
argon
Ar
thin graphene nanoplatelet precursor
thin graphene nanoplatelet
sulfuric acid
H₂SO₄
peroxide
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 2 shows Raman spectra of thin graphene nanoplatelets in accordance with the present invention.
Semiconductor Interconnect Structure Having Graphene-Capped Metal Interconnects
Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 is a flow chart of a method for producing a thin graphene nanoplatelet precursor in accordance with the present invention; and [0014]
FIG. 2 shows Raman spectra of thin graphene nanoplatelets in accordance with the present invention.
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 of producing thin graphene nanoplatelet precursor, comprising the steps of: (A) providing a carbon precursor and a filling material, and mixing the carbon precursor with the filling material by ball milling, planetary rotation mixing, or high speed homogenous mixing to form a uniform mixture, wherein the carbon precursor is made of a polymer material selected from a first collection of petroleum pitch, coke tar pitch, mesophase pitch, phenolic resin, furan resin, epoxy resin and polyimide, or the carbon precursor is made of any mixture of the first collection, and wherein the filling material is one selected from a second collection of petroleum coke, coal coke, natural graphite, thermally cracked graphite, carbon nanotube, carbon fiber, mesophase carbon microsphere, vapor grown carbon fiber, graphite fiber and artificial graphite powder, or the filling material is any mixture of the second collection; (B) performing a forming process of the uniform mixture to obtain a composite material, wherein the forming process is one selected from oil pressing, mold pressing, squeezing, extrusion, injection, spinning, and melt spinning forming process; and (C) performing a heat treatment of the composite material in a gaseous environment to obtain a thin graphene nanoplatelet precursor.
The method of producing thin graphene nanoplatelet precursor according to claim 1, wherein the carbon precursor and the filling material have percentages by weight in the ratio of 1: 1~ 19.
The method of producing thin graphene nanoplatelet precursor accord in g to claim 1, wherein the gas is one selected from the collection of nitrogen, argon.
The method of producing thin graphene nanoplatelet precursor according to claim 1, wherein the heat treatment is performed at a temperature range of 150~ 3,2 00°C.
A method of producing thin graphene nanoplatelets, comprising the steps of: (a) providing a thin graphene nanoplatelet precursor produced according to claim 1; (b) using an electrochemical method to process the thin graphene nanoplatelet precursor, wherein the electrochemical method includes an electrolytic solution; and (c) filtering the electrolytic solution to obtain a thin graphene nanoplatelet.
- 4. canceled
canceled
canceled
Page 2 of 11 Ser. No. 13/719,206 At t. Docket No.: Alfred-064-3 1 canceled
Materials described outside the worked examples.
carbon precursor
filling material
petroleum pitch
coke tar pitch
mesophase pitch
phenolic resin
furan resin
epoxy resin
polyimide
petroleum coke
coal coke
natural graphite
thermally cracked graphite
carbon nanotube
carbon fiber
mesophase carbon microsphere
vapor grown carbon fiber
graphite fiber
artificial graphite powder
nitrogen
N₂
argon
Ar
thin graphene nanoplatelet precursor
thin graphene nanoplatelet
sulfuric acid
H₂SO₄
peroxide
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 2 shows Raman spectra of thin graphene nanoplatelets in accordance with the present invention.
Semiconductor Interconnect Structure Having Graphene-Capped Metal Interconnects