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. 22, 1977
Filed:
Dec. 20, 1973
Applicant:
Inventors:
Hiroto Fujimaki, Tokyo, JA;
Fumio Kodama, Choufu, JA;
Reiho Takabe, Kawasaki, JA;
Kiro Asano, Tokyo, JA;
Koji Seguchi, Fuchu, JA;
Assignees:
Kureha Kagaku Kogyo Kabushiki Kaisha, Tokyo, JA;
Toyo Boseki Kabushiki Kaisha, Osaka, JA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B05D / ;
U.S. Cl.
CPC ...
427399 ; 81156 ; 264D / ; 4234471 ; 423460 ; 427444 ;
Abstract
A carbon fiber is oxidized to form oxygen-containing functional groups on the entire surface of the fiber and then contacted with ammonia, an organic amine, a lactam, or an amino carboxylic acid at a temperature of 100.degree.-500.degree. C whereby the surfaces of the carbon fiber obtain good affinity for a synthetic resin.