Covestro Deutschland Ag

Anna Weber

Christoph Gürtler

Walter Leitner

Thomas Ernst Müller

Michael Kessler

Carsten Koopmans

Henning Vogt

Claudine Rangheard

Susmit Basu

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 (A) wherein the a isocyanate compound (A1) comprising at least two isocyanate groups (I&#x2265;2), preferred two isocyanate groups (I=2), wherein the epoxide compound (B) comprises a epoxide compound (B) and an epoxide compound (B), wherein the epoxide compound (B) is different from the epoxide compound (B) wherein the epoxide compound (B) comprising at least two terminal epoxide groups (F1&#x2265;2), preferred two terminal epoxide groups (F=2), linked together by a linking group (L1) and the epoxide compound (B) comprising at least two terminal epoxide groups (F&#x2265;2)), preferred two terminal epoxide groups (F=2), linked together by a linking group (L), wherein the linking group (L) comprises acyclic and covalent bonds to each other free of conjugated multiple bonds within the main chain, wherein the epoxide compound (B) is present in the epoxide compounds Band B, in an amount of &#x2265;0.01 mol-% to &#x3c;10 mol-%, preferred 1-9 mol-% more preferred 3-8 mol-% based on the molar ratio the terminal epoxide groups in the epoxide compound (B) and of the sum of the terminal epoxide groups in the epoxide compound (B) and terminal epoxide groups in the epoxide compound (B).

Process for the synthesis of polyoxazolidinone compounds

Growing community of inventors

Cologne, Germany

Anna Weber