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:
Jun. 13, 2006
Filed:
Aug. 04, 2004
Applicants:
Jürgen Köcher, Langenfeld, DE;
Reinhard Halpaap, Odenthal, DE;
Inventors:
Jürgen Köcher, Langenfeld, DE;
Reinhard Halpaap, Odenthal, DE;
Assignee:
Bayer MaterialScience AG, Leverkusen, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07D 229/00 (2006.01); C07D 251/34 (2006.01); C07D 273/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to the use of sulphonamide salts as catalysts for oligomerizing isocyanates and also to a process for NCO oligomerization using the catalysts of the invention.