| abstract |
A method of preparing flexible polyurethane foam by reacting a polyether polyol with a diisocyanate, using from about 0.01 to about 50 parts by weight per hundred parts polyol of N,N''dialkyl-p-phenylene-diamine, N,N''-dialkyl-m-phenylenediamine or mixtures thereof wherein the alkyl substituents contain from 3 to 10 carbon atoms as combination catalysts and chain extending agents, and a blowing agent. |