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:
Feb. 16, 1988
Filed:
Apr. 03, 1986
Applicant:
Inventors:
Michael Kausch, Cologne, DE;
Hans Schroer, Dormagen, DE;
Karl-Heinz Wolf, Cologne, DE;
Heinz Gall, Pulheim, DE;
Carlhans Suling, Odenthal, DE;
Rudi Dauscher, Dormagen, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
524251 ; 524342 ; 524343 ; 524721 ; 528 49 ; 528 65 ; 528 78 ; 528 82 ; 528 84 ; 528 85 ;
Abstract
In the production of elasthane threads by solution spinning of polyurea polyurethanes by conventional spinning processes, excellent stabilization against light and noxious gases are obtained if at least one component of the system to be spun contains tertiary amino groups and the substances used as antioxidizing agents are phenols of the kind which do not form colored nitro compounds.