Polyester polyols containing monoalkanolamine derived units
    3.
    发明授权
    Polyester polyols containing monoalkanolamine derived units 失效
    含有单链烷醇胺衍生单元的聚酯多元醇

    公开(公告)号:US4801736A

    公开(公告)日:1989-01-31

    申请号:US5861

    申请日:1987-01-21

    摘要: The invention relates to a method for preparing microcellular polyurethane elastomer by reacting an organic isocyanate, a polyester polyol, a difunctional chain extender and a blowing agent, wherein at least a part of the polyester polyol used consists of a polyester polyol having a hydroxyl number between 28 and 112 and comprising units derived from aliphatic and/or aromatic dicarboxylic acids and from aliphatic, cycloaliphatic and/or heterocyclic glycols, as well as between 0.02 and 11 mole percent of units derived from monoalkanolamine with respect to the total amount of glycol and monoalkanolamine present in the polyester polyol.

    摘要翻译: 本发明涉及一种通过使有机异氰酸酯,聚酯多元醇,双功能扩链剂和发泡剂反应制备微孔聚氨酯弹性体的方法,其中使用的至少一部分聚酯多元醇由具有羟基数的聚酯多元醇组成 28和112,并且包含衍生自脂族和/或芳族二羧酸和脂族,脂环族和/或杂环二醇的单元,以及衍生自单链烷醇胺的0.02至11摩尔%的单元相对于二醇和单链烷醇胺的总量 存在于聚酯多元醇中。