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:
Nov. 04, 1986
Filed:
Dec. 23, 1985
Applicant:
Inventors:
Seiichi Uemura, Tokyo, JP;
Hiroaki Takashima, Kawasaki, JP;
Osamu Kato, Yokohama, JP;
Hazime Nakazima, Hiratsuka, JP;
Assignee:
Nippon Oil Company, , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10C / ; C10C / ; C10C / ;
U.S. Cl.
CPC ...
208 45 ; 208 22 ; 208 39 ; 4234476 ; 4234474 ;
Abstract
Pitch for the production of carbon fibers which contains from 5 to 40% of the optically anisotropic region which is insoluble in organic solvents having a solubility parameter from 7.4 to 9.0 but is soluble in organic solvents having a solubility parameter from 9.2 to 11.0.