Patent ID: 6384130
Filing Date: 2002-05-07
Classification: C08G,C08K,C08L

Abstract:
A liquid, hydrophobic, non-migrating, non-functional polyurethane plasticizer having a viscosity of less than about 100,000 mPaÂ·s at 50Â° C., and comprising the reaction product of(1) an isocyanate prepolymer having an NCO group content of less than 20% and which comprises the reaction product of: (a) a diisocyanate component having an NCO group content of about 25.0 to about 60.0%, and a functionality of about 2.0, and (b) at least one hydrophobic polyol having a molecular weight of about 200 to about 4,000, an OH number of about 28 to about 561 and a functionality of from about 1.8 to about 3.0; and (2) a monofunctional alcohol having a molecular weight of about 32 to about 1,000, and an OH number of about 56 to about 1750, wherein components (1) and (2) are present in equivalent ratios.