Polyurethane foam catalysts that eliminate polyurea-containing polyol based masterbatch cure drift

Claim 1

In a method for preparing a high resiliency polyurethane foam by the reaction of a polyisocyanate with a polyurea dispersion-containing polyol based masterbatch composition also containing an amine catalyst for the polyurethane reaction, the improvement which comprises employing as the catalyst a composition consisting essentially of (a) 5 to 15 wt % triethylenediamine, (b) 20 to 35 wt % 4-(2-dimethylaminoethyl) morpholine, (c) 20 to 35 wt % N,N,N',N'-tetramethyl-1,2-diamino-2-methylpropane, (d) 10 to 25 wt % bis(N,N-dimethylaminoethyl) ether, and (e) 5 to 40 wt % of a N-hydroxyalkyl quaternary ammonium acid salt prepared by reacting an amine of the formula ##STR4## where R, R 1 and R 2 are independently alkyl or hydroxyalkyl alkyl groups of 1-20 carbon atoms, cycloalkyl groups of 3-8 carbon atoms, aralkyl, aryl, alkenyl groups of 2-20 carbon atoms or alkynyl groups of 2-6 carbon atoms, or R, R 1 and R 2 together with a nitrogen atom form an N-substituted heterocyclic 5-7 atoms ring structure, with an alkylene oxide having 2-22 carbon atoms in the presence of an acid.