公开(公告)号：US20210309785A1

公开(公告)日：2021-10-07

申请号：US17262809

申请日：2019-08-02

申请人： Covestro Intellectual Property GmbH & Co. KG

发明人： Carsten Koopmans ,  Elena Frick-Delaittre ,  Aurel Wolf ,  Christoph Guertler ,  Michael Buchmeiser ,  Hagen Altmann ,  Stefan Naumann

IPC分类号： C08G18/00

摘要： A catalyst for the synthesis of oxazolidinones, preferable polyoxazolidinones, comprising an N-heterocyclic carbene and a Lewis acid (L). The invention is also related to a process for the production of an oxazolidinone compound, preferably a polyoxazolidinone compound, by reacting an isocyanate compound, preferably a polyisocyanate compound with an epoxide compound, preferably a polyepoxide compound, in the presence of the N-heterocyclic carbene and a Lewis acid catalyst and also to the resulting polyoxazolidinone.