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:
Sep. 13, 1983
Filed:
Mar. 26, 1982
Applicant:
Inventors:
Peter Loewrigkeit, Wyckoff, NJ (US);
Shmuel Dabi, Highland Park, NJ (US);
Assignee:
Witco Chemical Corporation, New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B05D / ;
U.S. Cl.
CPC ...
4284246 ; 4273935 ; 525453 ; 525454 ; 525457 ;
Abstract
A polyurethane coated polyvinyl chloride or co-polymer which resists discoloration is provided by coating the substrate surface with an aqueous dispersed polyurethane treated with a mono-acid halide, mono-acid anhydride, carbethoxy cyclic imide or monoisocyanate. The coated composite even when subjected to temperatures in excess of 100 degrees C. for extended periods resists discoloration and remains thermo-color stable with extended use.