POLYESTER POLYOL, COMPOSITION FOR POLYURETHANE, COMPOSITION FOR POLYURETHANE FOAM, POLYURETHANE RESIN, AND POLYURETHANE FOAM
申请人:Mitsui Chemicals, Inc.
公开号:EP2308913A1
公开(公告)日:2011-04-13
The present invention provides a polyester polyol, preferably a plant-derived polyester polyol, suitable for a composition for polyurethane foam that contributes to the reduction of load on the environment and has a good balance of high resilience, moderate hardness, and high durability as a cushioning material for vehicle seat cushions. A polyester polyol having a hydroxyl value in the range of 15 to 100 mgKOH/g according to the present invention is produced by a condensation of raw materials comprising at least one selected from the group consisting of fatty acids having a hydroxy group and fatty acid esters having a hydroxy group with a polyhydric alcohol having an average number of functional groups of more than three but not more than eight. The raw materials contain 90% to 100% by mass of a fatty acid having a hydroxy group and a fatty acid ester having a hydroxy group in total.
本发明提供了一种聚酯多元醇,最好是植物衍生的聚酯多元醇,适用于聚氨酯泡沫的组合物,有助于减少对环境的负荷,并在高回弹性、中等硬度和高耐用性之间取得良好平衡,可作为汽车坐垫的缓冲材料。根据本发明,羟基值在 15 至 100 mgKOH/g 范围内的聚酯多元醇是由至少一种选自具有羟基的脂肪酸和具有羟基的脂肪酸酯的原料与具有平均三个以上但不超过八个官能团的多元醇缩合而成。原料中具有羟基的脂肪酸和具有羟基的脂肪酸酯的总含量为 90%至 100%(以质量计)。