METHOD FOR THE PRODUCTION OF ISOCYANATE-GROUP TERMINATED POLYOXAZOLIDINONES

A process for producing an isocyanate-group terminated polyoxazolidinone comprising the copolymerization of a polyisocyanate compound (A) with two or more isocyanate groups with a polyepoxide compound (B) with two or more epoxy groups in the presence of a specific catalyst (C), wherein the molar rat...

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Bibliographic Details
Main Authors Wolf, Aurel, Guertler, Christoph, Reimann, Yvonne, Frick-Delaittre, Elena, Westhues, Stefan, Koopmans, Carsten, Weikard, Jan, Mager, Dieter
Format Patent
LanguageEnglish
Published 30.06.2022
Subjects
CHEMISTRY
COMPOSITIONS BASED THEREON
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Summary:A process for producing an isocyanate-group terminated polyoxazolidinone comprising the copolymerization of a polyisocyanate compound (A) with two or more isocyanate groups with a polyepoxide compound (B) with two or more epoxy groups in the presence of a specific catalyst (C), wherein the molar ratio of the isocyanate groups of the polyisocyanate compound (B) to the epoxy groups of the polyepoxide compound (A) is larger than 2:1 and less than 25:1. The resulting isocyanate-group terminated polyoxazolidinones is also provided.
Bibliography:Application Number: US202017607653