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:
Oct. 23, 1990
Filed:
Apr. 25, 1989
Applicant:
Inventors:
Gerhard Reinert, Allschwil, CH;
Jorg Binz, Reinach, CH;
Assignee:
Ciba-Geigy Corporation, Ardsley, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
D06M / ; D06M / ; D06M / ; D06P / ;
U.S. Cl.
CPC ...
811559 ; 811551 ; 811558 ; 8490 ; 8566 ; 8567 ; 8573 ; 8924 ; 252-86 ;
Abstract
A process for preventing yellowing of polyamide fibre materials treated with stain-blocking agents which comprises treating the polyamide fibre material with a water-soluble light stabilizer with affinity for the fibre before, during or after the treatment with a stain-blocking agent, and the fibre material thus treated are described.