Patent ID: 7947755

Claim:
A polyurethane foam, manufactured by simultaneously mixing and foaming a polymer polyol composition and polyisocyanate, wherein the polyisocyanate comprises at least one member selected from the group of: (a) diphenylmethane diisocyanate, and (b) hexamethylene diisocyanate wherein the polymer polyol composition comprises: at least one polycarbonate triol comprising three hydroxyl groups which is a polymer produced from at least diol monomer, wherein the at least diol monomer from which the polycarbonate triol comprising three hydroxyl group is produced comprises 3-methyl-1,5-pentandiol and 1,6-hexanediol, and a polycarbonate diol having two hydroxyl groups which is a polymer produced from at least diol monomer, wherein said at least diol monomer from which the polycarbonate diol is produced comprise 3-methyl-1,5-pentandiol and 1,6-hexanediol; with the weight ratio of the polycarbonate diol having two hydroxyl groups to the polycarbonate triol having three hydroxyl groups being from 40:60 to 95:5, wherein the average molecular weight of the polycarbonate triol is 1000 and the average molecular weight of the polycarbonate diol is 1000 to 2000.