Patent ID: 8236866
Filing Date: 2012-08-07
Classification: C08G

Abstract:
1. A high resilience polyurethane foam comprising the reaction product of (1) at least one polyisocyanate comprising at least about 5 weight percent of at least one methylene diphenyl diisocyanate isomer, derivative or a combination thereof, (2) an admixture of at least one natural oil based polyol and at least one additional polyol which is not a natural oil based polyol, wherein the admixture comprises at least about 10 weight percent natural oil based polyol and at least about 40 weight percent additional polyol having an equivalent weight of at least about 1700 Daltons, the foam has a resiliency indicated by a ball rebound of at least 40 percent as measured according to the procedures of ASTM D 3574, Test H, and the at least one natural oil based polyol comprises a reaction product of an initiator and at least one hydroxymethylated fatty acid or hydroxymethylated fatty acid ester, wherein the initiator comprises at least one alcohol or amine containing compound containing two or more hydroxyl, primary amine or secondary amine groups that has been reacted with an alkoxylating agent so that the initiator comprises polyether groups and has a molecular weight of at least about 150-3000, and (3) water.