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:
Oct. 26, 1993
Filed:
Dec. 31, 1991
Applicant:
Inventors:
Yoshinori Suto, Kamisumachi, JP;
Hideyuki Nakajima, Kamisumachi, JP;
Toshiyuki Ito, Kamisumachi, JP;
Assignee:
Petoca Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
D01F / ; D01F / ;
U.S. Cl.
CPC ...
264 292 ; 264130 ; 26421111 ;
Abstract
Pitch-based carbon fibers on which silicone based spin finish oils remain in the amount of 0.1-2.0% by weight of said fibers and having a stack height of the crystallites L.sub.C (002) of 16-28.ANG., an interlayer spacing distance d.sub.002 of 3.46-3.49.ANG., a tensile strength of 5-50 Kgf/mm.sup.2 and an elongation of 0.3-8.0% are provided. The said pitch-based carbon fibers show good cohesiveness and lubricity of fiber bundles and superior in adaptation to various kinds of processes.