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. 29, 1992
Filed:
Jun. 26, 1989
Applicant:
Inventors:
Klaus Noll, Koeln, DE;
Josef Pedain, Koeln, DE;
Bruno Zorn, Koeln, DE;
Rosemarie Schmid, Leverkusen, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ;
U.S. Cl.
CPC ...
4284234 ; 427389 ; 428473 ; 528 79 ; 528 80 ; 528 83 ;
Abstract
The present invention is directed to a process for the production of high-gloss patent leather from two-component polyurethane compositions by reacting hydroxyl group-containing oligourethanes with polyisocyanates, characterized in that the oligourethanes have been synthesized from