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, 2016
Filed:
Nov. 27, 2012
Applicant:
Bayer Intellectual Property Gmbh, Monheim, DE;
Inventors:
Frank Richter, Leverkusen, DE;
Martin Brahm, Odenthal, DE;
Assignee:
Covestro Deutschland AG, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 273/04 (2006.01); C07C 263/00 (2006.01); C08G 18/16 (2006.01); C08G 18/78 (2006.01); C08G 18/79 (2006.01); C08G 18/02 (2006.01); C08G 18/09 (2006.01);
U.S. Cl.
CPC ...
C07D 273/04 (2013.01); C08G 18/022 (2013.01); C08G 18/025 (2013.01); C08G 18/092 (2013.01); C08G 18/095 (2013.01); C08G 18/168 (2013.01); C08G 18/7887 (2013.01); C08G 18/792 (2013.01);
Abstract
The invention relates to a method for modifying isocyanates using catalysts having a water content not exceeding 1,000 ppm.