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. 13, 2012
Filed:
Dec. 02, 2008
Applicants:
Frank Richter, Leverkusen, DE;
Andreas Hecking, Langenfeld, DE;
Reinhard Halpaap, Odenthal, DE;
Inventors:
Assignee:
Bayer MaterialScience AG, Leverkusen, DE;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D 205/00 (2006.01); C08G 18/81 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to the use of specific pyridines as catalysts for the dimerization of isocyanates (uretdione formation) and a process for preparing polyisocyanates having a high content of uretdione groups.
Richter, Frank. (2012). Preparation of uretdione polyisocyanates (U.S. Patent No. 8134014). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8134014
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile