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:
Mar. 29, 1983
Filed:
Apr. 07, 1982
Applicant:
Inventors:
Assignees:
Sumitomo Chemical Co., Ltd., Osaka, JP;
Japan Exlan Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D01F / ;
U.S. Cl.
CPC ...
4234474 ; 264 292 ; 4234471 ; 4234476 ;
Abstract
A process for producing a carbon fiber tow from an acrylic fiber tow wherein the acrylic fiber tow is treated to uniformily contain throughout the two (1) an aminosiloxane and (2) a chemical substance selected from glycerine, an alkylene glycol, and a polyalkylene glycol prior to heat-treating said acrylic fiber tow to produce the carbon fiber tow whereby problems such as fluffiness, spreading, and filament breakage are diminished.