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:
Aug. 18, 1981
Filed:
Mar. 06, 1980
Applicant:
Inventor:
Kunio Maruyama, Okayama, JP;
Assignees:
Japan Exlan Company, Ltd., Osaka, JP;
Sumitomo Chemical Company Limited, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D01F / ; D01F / ; D01F / ;
U.S. Cl.
CPC ...
4234474 ; 4234471 ; 4234476 ; 264 292 ;
Abstract
A process is provided for producing carbon fibers characterized by fixing a specified amount of a chemical substance onto thermally stabilized fibers and/or carbonized fibers to impart good collectivity and then carbonizing and/or graphitizing the fibers, said chemical substance selected from one or more of the compounds of glycerin, polyethylene glycol, polypropylene glycol and alkyl derivatives thereof.