Patent ID: 9045580
Filing Date: 2015-06-02
Classification: B29C,B60N,C08G

Abstract:
1. Polyurethane foam for a seat pad, comprising a foaming liquid containing (A) a polyol component, (B) a polyisocyanate component, (C) water and (D) a catalyst, which has been foam-molded, wherein the polyol component (A) contains from 40 to 55% by mass, based on the polyol component, of (a-1) a polyether polyol, which is obtained through ring-opening polymerization of ethylene oxide and propylene oxide, having a molar ratio of repeating units derived from ethylene oxide and propylene oxide of from 5/95 to 25/75 and a number average molecular weight of from 6,000 to 8,000, and containing from 5 to 15% by mass, based on the polyol component, of (a-2) a polyether polyol, which is obtained through ring-opening polymerization of propylene oxide solely or ethylene oxide and propylene oxide, having a molar ratio of repeating units derived from ethylene oxide and propylene oxide of from 0/100 to 5/95 and a number average molecular weight of from 600 to 2,000, wherein the number of hydroxyl groups contained in one molecule of each of components (a-1) and (a-2) is from 2 to 4, and an amount of water (C) contained is 2.0 parts by mass or more per 100 parts by mass of the polyol component (A).