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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 9540285 B1

PDFFull Text
Date of Patent:
Jan. 10, 2017

Filed:

Aug. 19, 2011

Graphite film and process for producing graphite film

Applicants:

Yusuke Ohta, Osaka, JP;

Takashi Inada, Osaka, JP;

Makoto Mishiro, Osaka, JP;

Yasushi Nishikawa, Osaka, JP;

Inventors:

Yusuke Ohta, Osaka, JP;

Takashi Inada, Osaka, JP;

Makoto Mishiro, Osaka, JP;

Yasushi Nishikawa, Osaka, JP;

Assignee:

KANEKA CORPORATION, Osaka, JP;

Attorney:

Kagan Binder, PLLC

Primary Examiner:

Daniel C McCracken

Int. Cl.
CPC ...
C01B 31/04 (2006.01); C04B 35/634 (2006.01); C08L 77/06 (2006.01); C04B 35/52 (2006.01); C04B 35/524 (2006.01); C04B 35/622 (2006.01);
U.S. Cl.
CPC ...
C04B 35/63444 (2013.01); C01B 31/04 (2013.01); C04B 35/522 (2013.01); C04B 35/524 (2013.01); C04B 35/62218 (2013.01); C08L 77/06 (2013.01);
Abstract

A graphite film which is low in graphite dust generation can be produced by properly selecting acid dianhydride and diamine which constitute a polyimide film, which polyimide film is a raw material of the graphite film. Specifically, the graphite film which is low in graphite dust generation can be obtained if (1) the acid dianhydride is PMDA and the diamine has a molar ratio of ODA/PDA in a range of 100:0 to 80:20, or (2) the acid dianhydride has a molar ratio of PMDA/BPDA in a range of 80:20 to 50:50, and the diamine has a molar ratio of ODA/PDA in a range of 30:70 to 90:10.

Find Patent Forward Citations

Ohta, Yusuke. (2017). Graphite film and process for producing graphite film (U.S. Patent No. 9540285). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9540285

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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