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. 01, 2011
Filed:
Apr. 10, 2008
Applicants:
Nicolas Stöckel, Köln, DE;
Friedrich-karl Bruder, Krefeld, DE;
Harald Blum, Leverkusen, DE;
Inventors:
Assignee:
Bayer MaterialScience AG, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 7/00 (2006.01); C08G 18/00 (2006.01); C08L 67/00 (2006.01); C08L 71/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides polyurethane systems which cure by radiation and thermal action with crosslinking, and use thereof for the production of holographic media. The polyurethane compositions of the invention comprise A) polyisocyanates, B) isocyanate-reactive block copolymers, C) compounds having groups which react on exposure to actinic radiation with ethylenically unsaturated compounds with polymerization, D) optionally free radical stabilizers and E) photoinitiators.