Covestro Deutschland Ag

Covestro Intellectual Property Gmbh & Co. Kg

Richard Meisenheimer

Dirk Achten

Paul Heinz

Friedrich-Karl Bruder

Frank Richter

Michael Ludewig

Roland Wagner

Thomas Büsgen

Thomas Roelle

Christoph Tomczyk

Jörg Tillack

Frank-Stefan Stern

Alisa Kayser

Heiko Hocke

Christel Manecke

Lena Nault

Maximillian Kuner

Photopolymer compositions include a) matrix polymers, b) writing monomers, c) at least one photoinitiator system, d) optionally at least one non-photopolymerisable component, e) optionally catalysts, radical stabilisers, solvents, additives and other auxiliary and/or additional materials. The at least one photoinitiator system c) consists of at least one colouring agent and at least one coinitiator. At least one of the colouring agents has a structure according to formula (II), and the at least one coinitiator has a calculated oxidation potential (E); determined according to the formula (1).

Photopolymer compositions for thermostable photopolymers in the visible spectral range

The invention relates to reaction mixtures having a high ratio of isocyanate groups to isocyanate-reactive groups, which reaction mixtures mostly cure through the formation of isocyanurate groups, and to the use of such reaction mixtures for producing semifinished materials.

Composite materials based on dual-cure urethane polymers and dual-cure isocyanurate polymers

The present invention relates to polymerizable compositions which contain components that can be crosslinked both via isocyanurate bonds and by a radical reaction mechanism. The invention further relates to methods by way of which polymers can be produced from said compositions.

Dual-curing isocyanurate polymers

The present invention relates to the use of tertiary amines as catalysts for the cross-linking of isocyanate groups which are aliphatically and/or cyclo-aliphatically bonded. The catalysts according to the invention have the particular advantage that they are thermally latent.

Amine catalysts for the manufacture of isocyanurate polymers

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Cologne, Germany

Richard Meisenheimer