Covestro Deutschland Ag

Covestro Intellectual Property Gmbh & Co. Kg

Timo Breuer

Christoph Gürtler

Aurel Wolf

Kai Laemmerhold

Christoph Guertler

Carsten Koopmans

Claudine Rangheard

Elena Frick-Delaittre

A process for producing thermoplastic polyoxazolidinone, comprising the following steps: (i) Reaction of a diisocyanate compound (A) with a bisepoxide compound (B) in the presence of a catalyst (C) and a compound (D) in a solvent (E) forming an intermediate compound (F) and (ii) Reaction of a compound (G) with the intermediate (F) formed in step (i), wherein compound (D) is one or more compounds selected from the group consisting of monofunctional isocyanate and monofunctional epoxide, and wherein compound (G) is an alkylene oxide. The invention is also related to the resulting thermoplastic polyoxazolidinone.

Method for the production of thermoplastic polyoxazolidone polymers

A process for producing thermoplastic polyoxazolidinone comprising copolymerization of a diisocyanate compound (A) with a bisepoxide compound (B) in the presence of a catalyst (C) and a compound (D) in a solvent (E), wherein the catalyst (C) is selected from the group consisting of alkali halogenides and earth alkali halogenides, and transition metal halogenides, compound (D) is selected from the group consisting of monofunctional isocyanate, monofunctional epoxide, and wherein the process comprises step (&#x3b1;) of placing the solvent (E) and the catalyst (C) in a reactor to provide a mixture, and adding the diisocyanate compound (A), the bisepoxide compound (B) and the compound (D) in step (&#x3b2;) to the mixture resulting from the step (&#x3b1;). The invention is also related to the resulting thermoplastic polyoxazolidinone.

Method for the production of thermoplastic polyoxazolidinone polymers

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Kerpen, Germany

Timo Breuer