Patent ID: 6617365
Filing Date: 2003-09-09
Classification: C08J

Abstract:
A process for preparing a polyurethane foam which comprises reacting a polyol and an isocyanate in the presence of a silicone-polyether copolymer of the formula whereRf is a polyether radical of the average formula â€”(Y)c[O(CxH2xO)pZ]w, wherec=0 or 1, x=2 to 4, with mixtures of the corresponding monomers also being able to be used, p&gE;0, w=1 to 4, Z=hydrogen atom or a monovalent organic radical, Y=a w+1-valent hydrocarbon radical which may also be branched, Rg is an alkyl radical or a substituted or unsubstituted aryl radical, wherea is from 0 to 20, with the proviso that c and p must not at the same time be 0.