Stabilizing polyurea polymer polyols by treating with a secondary amine

In a method for producing a polyurea polymer polyol having improved storage stability wherein there is reacted a mixture of a hydroxyl-containing amine, a polyether polyol of about 3000 to 8000 molecular weight and an organic polyisocyanate wherein the amount of polyisocyanate reacted is less than the stoichiometric amount needed to satisfy the hydroxyl groups of the hydroxyl-containing amine and the polyether polyol the improvement which comprises adding to the reaction product an amount of secondary amine effective to improve the storage stability of said polyurea polymer polyol.

A polyurea polymer polyol made by reacting a hydroxyl containing amine, a polyether polyol of about 3000 to 8000 molecular weight and an organic polyisocyanate wherein the amount of polyisocyanate reacted is less than the stoichiometric amount needed to satisfy the hydroxyl group of the hydroxyl-containing amine and the polyether polyol and adding to the reaction product an amount of a secondary amine of the formula ##STR4## where R is C.sub.1 to C.sub.8 alkyl effective to improve the storage stability of said polyol.