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:
Apr. 21, 1998
Filed:
Jan. 10, 1996
Applicant:
Inventors:
Ulrich Reinehr, Dormagen, DE;
Gunter Turck, Dormagen, DE;
Tilo Sehm, Dusseldorf, DE;
Wolfgang Anderheggen, Dormagen, DE;
Toni Herbertz, Dormagen, DE;
Gino Antolini, Bergamo, IT;
Assignee:
Bayer Faser GmbH, Dormagen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
525453 ; 525459 ; 525460 ; 528 49 ; 528 61 ;
Abstract
The invention relates to a process for adjusting the viscosity of highly concentrated elastane solutions by reaction of the solution with secondary aromatic amines in order to produce spinning solutions for the dry or wet spinning of elastane fibres.