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    • 4. 发明专利
    • Preparation of high elasticity polyurethane foam
    • 高弹性聚氨酯泡沫的制备
    • JP2005232466A
    • 2005-09-02
    • JP2005107584
    • 2005-04-04
    • Asahi Glass Co Ltd旭硝子株式会社
    • WADA HIROSHITSUKIDA NOBUAKIHORIE AKIOHASEGAWA NOBORU
    • C08G18/48C08G101/00
    • 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
    • 要解决的问题:提供具有改善的舒适性的高弹性聚氨酯泡沫,并提供其具有改进的成型性的其制造方法。 解决方案:本发明涉及高弹性聚氨酯泡沫体的制备方法,该方法通过使具有两个或多个与异氰酸酯基反应的活性氢官能团的高分子量活性氢化合物与多异氰酸酯化合物在 催化剂和发泡剂,其中高分子量活性氢化合物是多元醇的混合物,其包含(A)通过使用基于钠或钾的催化剂的引发剂存在下通过环醚的开环聚合获得的聚氧化烯多元醇 和(B)通过使用多金属氰化物络合物或铯催化剂在引发剂存在下通过环醚的开环聚合获得的聚氧化烯多元醇,其中混合比(A)/(B)(重量比) 是5 / 95-90 / 10。 版权所有(C)2005,JPO&NCIPI