Polyethers and their use as mold release agents for plastics
    2.
    发明授权
    Polyethers and their use as mold release agents for plastics 失效
    聚醚及其作为塑料脱模剂的用途

    公开(公告)号:US4889908A

    公开(公告)日:1989-12-26

    申请号:US250453

    申请日:1988-09-28

    Abstract: The present invention is directed to polyethers obtained by the reaction of a substituted 1,2-epoxy-alkane bearing at least one alkyl substituent containing at least 8 carbon atoms with at least one polyol corresponding to the formulaR(OH).sub.x (1)whereinR is an organic radical andx is an integer having a value of 2 or more,2 or more moles of epoxyalkane being added onto the polyol (1).The present invention is also directed to a process for the preparation of high molecular weight polymers wherein the process is conducted in the presence of the previously described polyethers as a mold release agent.

    Abstract translation: 本发明涉及通过使至少一个含有至少8个碳原子的烷基取代基的取代的1,2-环氧烷烃与至少一种对应于式R(OH)x(1)的多元醇反应得到的聚醚, 其中R是有机基团,x是具有2或更大值的整数,加入到多元醇(1)上的2个或更多摩尔的环氧烷烃。 本发明还涉及制备高分子量聚合物的方法,其中该方法在前述聚醚作为脱模剂的存在下进行。

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