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:
Oct. 13, 2015
Filed:
Mar. 26, 2013
Applicant:
Basf SE, Ludwigshafen, DE;
Inventors:
Kerstin Wiss, Mannheim, DE;
Sirus Zarbakhsh, Hong Kong Pok Fu Lam, CN;
Achim Loeffler, Speyer, DE;
Peter Deglmann, Mannheim, DE;
Michael Limbach, Worms, DE;
Ronald Lindner, Dossenheim, DE;
Severine Lavy, Heidelberg, DE;
Michael Ludwik Lejkowski, Mannheim, DE;
Assignee:
BASF SE, Ludwigshafen, DE;
Primary Examiner:
Int. Cl.
CPC ...
C08G 65/00 (2006.01); C07C 41/03 (2006.01);
U.S. Cl.
CPC ...
C07C 41/03 (2013.01); C07C 41/03 (2013.01); C07C 43/11 (2013.01);
Abstract
The present invention relates to a process for preparing polyetherols by catalytic ring-opening polymerization, wherein at least one nitrogen-containing cyclic precatalyst compound is used.