Process for organocatalytic ring-opening polymerization

US9056945B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Kerstin Wiss · Mannheim, DE
• Sirus Zarbakhsh · Ludwigshafen, DE
• Achim Loeffler · Puming, CN
• Peter Deglmann · Ludwigshafen, DE
• Lothar Riebel · Bischofswerda, DE
• Michael Limbach · Worms, DE
• Ronald Lindner · Dossenheim, DE
• Michael Lejkowski · Neckargemünd, DE
• Julia Grosse · Seelze, DE

Key dates

• Filing date: Mar 26, 2013
• Grant date: Jun 16, 2015
• Expiry date: Sep 29, 2033

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G77/08
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

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.