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.:
Date of Patent:
Feb. 25, 1992
Filed:
May. 07, 1990
Applicant:
Inventors:
Mutsuaki Murakami, Tokyo, JP;
Kazuhiro Watanabe, Kawasaki, JP;
Naomi Nishiki, Kyoto, JP;
Katsuyuki Nakamura, Osaka, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ; C01B / ;
U.S. Cl.
CPC ...
156 89 ; 1563099 ; 264 296 ; 264 297 ; 264171 ; 264248 ; 264280 ; 26433112 ; 26433119 ; 423448 ;
Abstract
A process for making an artificial graphite film from a graphitizable polymer is described. In the process, a starting polymer film having a defined thickness is thermally treated at a temperature of not lower than 2400.degree. C. in an inert gas to graphitize the film, and rolled to obtain a graphite film. The graphite film has good flexibility and elasticity with relatively smooth surfaces.