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. 07, 1989
Filed:
Aug. 21, 1987
Applicant:
Inventors:
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D01F / ; D01D / ;
U.S. Cl.
CPC ...
264182 ; 26421116 ; 264233 ;
Abstract
Hydrophilic polyacrylonitrile filaments or fibres where at least one filament-forming synthetic polymer is wet spun in a spinning solvent and wherein the spinning solvent has added to it from 10 to 20% by weight of a substance which is readily miscible with the spinning solvent and a washing liquid and is a nonsolvent for the polymer to be spun.