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:
Dec. 26, 1978
Filed:
May. 18, 1977
Applicant:
Inventors:
Eduard Radlmann, Dormagen, DE;
Ulrich Reinehr, Dormagen, DE;
Peter Hoffmann, Leverkusen, DE;
Dieter Arlt, Cologne, DE;
Gunther Nischk, Dormagen, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; D01D / ;
U.S. Cl.
CPC ...
526 16 ; 264182 ; 264206 ; 264236 ; 526 50 ;
Abstract
The invention relates to a process for the production of crosslinked fibres or filaments by spinning an acrylonitrile copolymer containing at least 20 mVal of carboxyl groups per kg of polymer together with a polyoxazoline in a polar organic solvent and thereafter crosslinking at temperatures of from 120 to 190.degree. C. The invention also relates to crosslinked acrylonitrile fibres and filaments obtainable by this process.