Th. Goldschmidt Ag

Bernd-Jurgen Klietsch

Georg Burkhart

Rolf-Dieter Langenhagen

Andreas Weier

Hans-Joachim Kollmeier

Volker Zellmer

Helmut Lammerting

Anette Brune-Fischer

The invention relates to the use of silicone-polyether copolymers of the formula I ##STR1## as surface-active substances in the production of high-resilience polyurethane foams.

Use of silicone polyether copolymers in the production of

High resilience polyurethane foams are produced by reacting a mixture of highly reactive polyols having a weight average molecular weight between about 4800 and 6500 g/mole and containing at least 70% primary hydroxyl groups and optionally fillers, polyfunctional isocyanates, amine activators, cross-linking agents, tin catalysts, blowing agents and stabilizers. The inventive stabilizers can be used universally in high resilience slabstock foam systems as well as in high resilience molded foam systems and in formulations based on pure TDI, TDI/MDI mixtures as well as on pure MDI in combination with appropriate polyols.

Method for producing cold polyurethane foams

In a method for the preparation of highly elastic, cold curing polyurethane foams, equilibrated organofunctional polysiloxanes of the average general formula ##STR1## wherein R.sup.1 is methyl or R.sup.2,

Method for the production of highly elastic, cold-curing polyurethane

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Essen, Germany

Bernd-Jurgen Klietsch