Patent ID: 6291538
Filing Date: 2001-09-18
Classification: C08G

Abstract:
A polyurethane foam prepared by reacting a polyol composition comprising a polyol component containing a polyoxypropylene polyol, urea, a tertiary amine as a catalyst and water with a polyisocyanate compound, wherein the amount of the urea is 0.1 to 0.9 parts by weight based on 100 parts by weight of the polyol component, and said polyoxypropylene polyol comprises:(A) a polyoxypropylene polyol having an unsaturation degree of not more than 0.06 meq/g, a starting material of which being a compound having two hydroxyl groups, and(B) a polyoxypropylene polyol, a starting material of which being a compound having not less than three hydroxyl groups, and the weight ratio of the polyoxypropylene polyol (A)/the polyoxypropylene polyol (B) is not less than 4.