| 摘要 |
PROBLEM TO BE SOLVED: To provide a high elasticity polyurethane foam with improved comfortableness and to provide a method for production of the same with improved moldability. SOLUTION: The invention relates to the method for production of the high elasticity polyurethane foam by reacting a high molecular weight active hydrogen compound having two or more active hydrogen functional groups reactive to an isocyanate group with a polyisocyanate compound in the presence of a catalyst and a blowing agent, wherein the high molecular weight active hydrogen compound is a mixture of the polyols comprising (A) a polyoxyalkylene polyol obtained by ring-opening polymerization of a cyclic ether in the presence of an initiator using a sodium or potassium based catalyst and (B) a polyoxyalkylene polyol obtained by ring-opening polymerization of a cyclic ether in the presence of an initiator using a multi-metal cyanide complex or a cesium catalyst, wherein the mixing ratio (A)/(B) (weight ratio) is 5/95-90/10. COPYRIGHT: (C)2005,JPO&NCIPI |
