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:
Mar. 14, 2017
Filed:
Jan. 29, 2014
Applicant:
Bayer Material Science Ag, Leverkusen, DE;
Inventors:
Serguei Kostromine, Swisttal, DE;
Frauke Kühn, Leverkusen, DE;
Assignee:
Covestro Deutschland AG, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 251/24 (2006.01); C08F 2/48 (2006.01); C09D 5/32 (2006.01); G02B 5/20 (2006.01); G02B 5/22 (2006.01);
U.S. Cl.
CPC ...
C07D 251/24 (2013.01); C08F 2/48 (2013.01); C09D 5/32 (2013.01); G02B 5/208 (2013.01); G02B 5/223 (2013.01);
Abstract
The present invention relates to a two-stage preparation process for an organic UV absorber that has a (meth)acrylate group in the molecule and which as a result is particularly suitable for curable UV protective coatings. One example of the preparation process is: