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1. (WO2018033562) PROCESS FOR THE SYNTHESIS OF POLYOXAZOLIDINONE COMPOUNDS

Pub. No.:    WO/2018/033562    International Application No.:    PCT/EP2017/070736
Publication Date: Fri Feb 23 00:59:59 CET 2018 International Filing Date: Thu Aug 17 01:59:59 CEST 2017
IPC: C08G 18/76
C08G 18/00
D01F 6/96
Applicants: COVESTRO DEUTSCHLAND AG
Inventors: WEBER, Anna
RANGHEARD, Claudine
KESSLER, Michael
LEITNER, Walter
GÜRTLER, Christoph
KOOPMANS, Carsten
MÜLLER, Thomas, Ernst
Title: PROCESS FOR THE SYNTHESIS OF POLYOXAZOLIDINONE COMPOUNDS
Abstract:
A method for the production of polyoxazolidinone compounds, comprising the step of reacting an isocyanate compound (A) with an epoxide compound (B) in the presence of a catalyst (C), wherein the isocyanate compound (A) comprises a isocyanate compound (A1) wherein the a isocyanate compound (A1) comprising at least two isocyanate groups (11 ≥ 2), preferred two isocyanate groups (11 = 2), wherein the epoxide compound (B) comprises a epoxide compound (B1) and an epoxide compound (B2), wherein the epoxide compound (B2) is different from the epoxide compound (B1) wherein the epoxide compound (B1) comprising at least two terminal epoxide groups (F1 ≥ 2), preferred two terminal epoxide groups (F1 = 2), linked together by a linking group (L1) and the epoxide compound (B2) comprising at least two terminal epoxide groups (F2 ≥ 2) ), preferred two terminal epoxide groups (F2 = 2), linked together by a linking group ( L2 ), wherein the linking group (L2) comprises acyclic and covalent bonds to each other free of conjugated multiple bonds within the main chain, wherein the epoxide compound (B2) is present in the epoxide compounds B1 and B2, in an amount of ≥ 0.01 mol-% to < 10 mol-%, preferred 1-9 mol-% more preferred 3-8 mol- % based on the molar ratio the terminal epoxide groups in the epoxide compound (B1) and of the sum of the terminal epoxide groups in the epoxide compound (B1) and terminal epoxide groups in the epoxide compound (B2).