Abstract: The invention relates to a method for the production of high resilience polyurethane foams by reacting a mixture of highly reactive polyols, which usually have an average molecular weight of between about 4800 and 6500 g/mole and at least 70% primary hydroxyl groups and optionally contain fillers, polyfunctional isocyanates, amine activators, cross-linking agents, tin catalysts, blowing agents and stabilizers, compounds of the general formula ##STR1## being used as stabilizers, in which R.sup.1 is the same or different in the average molecule and represents a methyl group or a group of the general formula --CH.sub.2 --CH.sub.2 --(CH.sub.2).sub.a --C.sub.6 H.sub.3 (R.sup.2).sub.2 (a=0 or 1; R.sup.2 =--O--CH.sub.3), with the proviso that at least one R.sup.1 group is a group having the formula --CH.sub.2 --CH.sub.2 --(CH.sub.2)a--C.sub.6 H.sub.3 (R.sup.2).sub.2n has an average numerical value of 2 to 11,m has an average numerical value of 1 to 6,with the proviso that the quotient p=(n+m+2)/m is 1.66 to 12.

Abstract: 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.