Patent ID: 8476329

Claim:
A rigid polyurethane foam article comprising the reaction product of: (A) a bioresin composition substantially free of aprotic solvents that chemically decompose in the presence of water, said bioresin composition comprising: (i) a first biopolyol comprising a natural oil component, said first biopolyol having: (a) a nominal functionality of at least 2.5, (b) a hydroxyl number of from about 375 to about 575 mg KOH/g, and (c) a viscosity of from about 500 cps to about 1500 cps at 77° F., (ii) a second biopolyol comprising the reaction product of a natural carbohydrate and an alkylene oxide, wherein said second biopolyol and said first biopolyol are present in a weight ratio of greater than 1:1 to about 3:1, and (iii) an aprotic solvent that does not chemically decompose in the presence of water; and (B) an isocyanate; in the presence of (C) a chemical blowing agent.