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:
Mar. 21, 1989
Filed:
Jun. 30, 1987
Applicant:
Inventors:
Masayuki Funabashi, Iwaki, JP;
Masayosi Sibuya, Iwaki, JP;
Assignee:
Kureha Kagaku Kogyo Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M / ; C01B / ; D01F / ;
U.S. Cl.
CPC ...
502101 ; 204294 ; 264 295 ; 429 40 ; 429 42 ; 429 44 ;
Abstract
Disclosed herein are a process for producing an electrode substrate, which process comprises the steps of kneading a raw material mixture comprising from 30 to 60% by weight of short carbon fibers, from 20 to 50% by weight of a phenol resin binder and from 20 to 50% by weight of a molding additive, extruding the thus kneaded raw material mixture and after press-molding the thus extruded material by rolling or stamping, calcining the thus press-molded material in an inert atmosphere and/or under a reduced pressure and the electrode substrate produced by the above-mentioned process.