Process for producing integral graphene films from functionalized graphene sheets

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12246967
APP PUB NO 20190352186A1
SERIAL NO

15980015

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Abstract

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Provided is a process for producing an integral graphene film, comprising: (a) preparing a graphene dispersion having chemically functionalized graphene sheets dispersed in a fluid medium wherein the graphene sheets contain chemical functional groups attached thereto; (b) dispensing and depositing a wet film of the graphene dispersion onto a supporting substrate, wherein the dispensing and depositing procedure includes mechanical shear stress-induced alignment of the graphene sheets along a film planar direction, and partially or completely removing the fluid medium to form a relatively dried film comprising aligned chemically functionally graphene sheets; and (c) using heat, electromagnetic waves, UV light, or high-energy radiation to induce chemical reactions or chemical bonding between chemical functional groups attached to adjacent chemically functionalized graphene sheets to form the integral graphene film. The film after step (b) or (c) may be further compressed to increase the degree of graphene sheet orientation in the integral graphene film.

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Patent Owner(s)

  • GLOBAL GRAPHENE GROUP, INC.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Jang, Bor Z Centerville, US 686 16010
Zhamu, Aruna Springboro, US 526 12868

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