Patent ID: 7462679
Filing Date: 2008-12-09
Classification: C08G,C09D

Abstract:
1. An isocyanate terminated, polyurethane group-containing prepolymer having an isocyanate content of from 0.5 to 35% by weight and containing pendant aliphatic hydrocarbyl groups of from 8 to 22 carbon atoms, wherein at least 50% by weight of such hydrocarbyl groups contain a conjugated group of three or four aliphatic carbon-carbon double bonds, wherein the prepolymer is a reaction product of a polyisocyanate and a functionalized oil having an average of at least two free hydroxyl groups, the functionalized oil being the reaction product of tung oil and a polyol having at least three primary hydroxyl groups per molecule and a melting temperature of 220° C. or below.