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:
Jul. 27, 1993
Filed:
Jan. 07, 1991
Applicant:
Inventor:
Toshi Iizuka, Takasaki, JP;
Assignee:
Gun Ei Chemical Industry Co., Ltd., Gunma, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ; D02G / ;
U.S. Cl.
CPC ...
428408 ; 428367 ; 428902 ; 4234472 ;
Abstract
An activated and heat-treated product of a pitch fiber (A) is combined with an activated and heat-treated product of a precursor fiber of carbon fiber (B) having a larger elongation and a larger shrinkage during activation treatment thereof than those of the pitch fiber (A) to provide an activated carbon fiber structure. The activated carbon fiber structure is produced by subjecting the pitch fiber (A) and the precursor fiber of carbon fiber (B) to an activation treatment before or after the fibers (A) and (B) are formed into a configuration corresponding to a fiber structure through mixing or laminating.