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:
Dec. 06, 2016
Filed:
Jan. 15, 2015
Basf SE, Ludwigshafen, DE;
Kerstin Wiss, Mannheim, DE;
Sirus Zarbakhsh, Hong Kong Pok Fu Lam, CN;
Achim Loeffler, Speyer, DE;
Peter Deglmann, Mannheim, DE;
Lothar Riebel, Frankenthal, DE;
Michael Limbach, Worms, DE;
Ronald Lindner, Dossenheim, DE;
Michael Ludwik Lejkowski, Mannheim, DE;
Julia Frauke Grosse-Willerich, Mannheim, DE;
BASF SE, Ludwigshafen, DE;
Abstract
The present invention relates to a process for organocatalytic ring-opening polymerization of at least one monomer M suitable for ring-opening polymerization, or of mixtures thereof, wherein, in a step (i), at least one N-heterocyclic compound is subjected in the presence of at least one Zerevitinov-active compound Z1 to a temperature of at least 80° C. for a period of at least 30 seconds and, in a step (ii), the monomer M is added and reacted.