| 摘要 |
PROBLEM TO BE SOLVED: To obtain a composition which is suitable for producing clash pads for instrument panels of vehicles and gives with a good moldability a molded article cured for a short time, and almost free from void defects. SOLUTION: A polyol composition for producing a semirigid polyurethane foam is provided which comprises (A) a polymer polyol prepared by polymerizing (b) a vinyl monomer in (a) a polyether polyol and/or (B) a polyether polyol, provided that specific three kinds of polyether polyols are contained in polyether polyol (a) and/or polyether polyol (B). A composition for forming a semirigid polyurethane foam is also provided which comprises the above polyol composition, a specific polyisocyanate component, water as a blowing agent, a catalyst, and optionally a foam stabilizer. |
