POLYOL COMPOSITION FOR RIGID POLYURETHANE FOAM AND METHOD FOR PRODUCING RIGID POLYURETHANE FOAM

摘要

PROBLEM TO BE SOLVED: To provide a polyol composition for a rigid polyurethane foam with suppressed vapor pressure of HFC-245fa while using the HFC-245fa as a foaming agent and to provide a method for producing the rigid polyurethane foam. SOLUTION: The polyol composition for the rigid polyurethane foam comprises 1,1,1,3,3-pentafluoropropane (HFC-245fa) as a foaming agent component and contains diethylene glycol monoethyl ether acetate and a polyol compound containing a tertiary amino group in which the content of nitrogen based on the tertiary amino group is 0.5-9 wt.% in the polyol compound. HFC-365mfc or HFE-254pc is preferably used as the foaming agent component in combination. COPYRIGHT: (C)2004,JPO&NCIPI