Patent ID: 8394868
Filing Date: 2013-03-12
Classification: C08G,Y10T

Abstract:
1. A polyol prepolymer having at least one urethane group, comprising a reaction product of at least one isocyanate and a polyol blend, wherein the polyol blend comprises at least one petroleum-based polyol and at least one natural oil based polyol, the isocyanate is reacted at an isocyanate index of between about 5 and about 80, the polyol prepolymer has a viscosity of between about 3000 mPa·s and about 30000 mPa·s at 25° Celsius, and wherein the at least one natural oil based polyol comprises the reaction product of at least a hydroxymethylated fatty acid or hydroxymethylated fatty acid-ester with an initiator compound.