Covestro Deutschland Ag

Covestro Intellectual Property Gmbh & Co. Kg

Volker Marker

Christoph Gürtler

Walter Leitner

Thomas Ernst Müller

Aurel Wolf

Jens Langanke

Carsten Koopmans

Claudine Rangheard

Jochen Norwig

Matthias Leven

Philipp Nicholas Wagner

Florian Kessler

Claudia Bizzarri

Thomas Ernst MÜLLER

Philipp Nicolas Wagner

Method for the production of polyoxazolidinone compounds, comprising the reaction of at least one biscarbamate compound (A) with at least one bisepoxide compound (B) in the presence of at least one base (D), at least one Lewis acid catalyst (E), and optionally at least one compound (C), wherein the compound (C) comprising a mono-carbamate group, a mono-isocyanate group and/or a mono-epoxide group, and wherein the base (D) having a pKb-value of &#x2264;9. The invention is also related to the resulting polyoxazolidinone compounds.

Method for the production of polyoxazolidinone polymer compounds

The present invention describes a process for producing an elastomer, preferably a polyurethane-containing elastomer, by reacting a polyol component (A) comprising at least one polyether carbonate polyol (A-1) containing carbon-carbon double bonds with a component (B) which is reactive with OH groups and contains at least one compound reactive toward OH groups, preferably an isocyanate component (B-1) containing NCO groups, in the presence of a free-radical initiator (C), preferably at least one peroxide (C-1), and optionally a catalyst (D), where the molar ratio of the OH-reactive groups of component (B) reactive with groups, to the OH groups of the polyol component (A) containing carbon-carbon double bonds, is greater than 1.0. It further relates to elastomers obtainable by such a process, preferably polyurethane elastomers, the use thereof, and two-component systems for production of elastomers, preferably polyurethane elastomers.

Process for producing elastomers

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Burscheid, Germany

Volker Marker