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. 02, 2002
Filed:
Oct. 06, 2000
Applicant:
Inventors:
Kazuhiko Tanaka, Okayama-Pref., JP;
Akihiro Hokimoto, Okayama-Pref., JP;
Yoshiteru Matsuo, Okayama-Pref., JP;
Masao Kawamoto, Okayama-Pref., JP;
Assignee:
Kuraray Co., Ltd., Kurashiki, JP;
Primary Examiner:
Int. Cl.
CPC ...
D01F 8/00 ;
U.S. Cl.
CPC ...
D01F 8/00 ;
Abstract
An electrically-conductive composite fiber composed of an electrically-conductive polyamide layer (A) containing 15-50 wt % of electrically-conductive carbon black and which is three or more times exposed at the fiber surface and a protective polyamide layer (B) which covers no less than 60% of the periphery of the fiber cross section and accounts for 50-97 wt % of the total fiber weight, does not exhibit component separation during spinning, retains its good initial conductive performance for a long period of time, and exhibits good color fastness.