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. 03, 2014
Filed:
May. 08, 2013
Applicant:
Basf SE, Ludwigshafen, DE;
Inventors:
Frederic Lucas, Offenburg, DE;
Angelika Maria Steinbrecher, Stuttgart, DE;
Philippe Desbois, Edingen-Neckarhausen, DE;
Assignee:
BASF SE, Ludwigshafen, DE;
Primary Examiner:
Int. Cl.
CPC ...
C07C 261/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a novel process for preparing polyisocyanates having isocyanurate groups by a partial trimerization of (cyclo)aliphatic diisocyanates in the presence of at least one trimerization catalyst from the group of ammonium salts of lactames and to the use of the thus obtainable polyisocyanates having isocyanurate groups as a polyisocyanate component in polyurethane coatings.