公开(公告)号：US20240052087A1

公开(公告)日：2024-02-15

申请号：US18257028

申请日：2021-12-15

Applicant: BASF SE

Inventor： Berend ELING ,  Stefan AUFFARTH ,  Aggeliki QUELL ,  Martin WEBER

IPC: C08G18/58 ,  C08G18/16 ,  C08G18/38 ,  C08G18/08

CPC classification number: C08G18/58 ,  C08G18/168 ,  C08G18/3848 ,  C08G18/0852

Abstract: Disclosed herein is a method for producing a thermally stable thermoplastic polyoxazolidinone compound including the steps of mixing (a) at least one diisocyanate, (b) at least one organic compound having two epoxide groups, (c) at least one catalyst, catalyzing the formation of oxazolidinone groups and (d) optionally at least one solvent to form a polyoxazolidinone, and contacting this polyoxazolidinone with carbon dioxide. Further disclosed herein are a thermoplastic polyoxazolidinone, obtained from the disclosed method, a method for producing a molded part including the step of melting the polyoxazilodinone, introducing the melt into a mold, cooling the polyoxazolidinone in the mold to temperatures below its melting point and demolding the obtained molded part, and a molded part obtained by such a method.