Ethylene-propylene elastomeric copolymers with a low content of residual
chlorine
    1.
    发明授权
    Ethylene-propylene elastomeric copolymers with a low content of residual chlorine 失效
    具有低残留氯含量的乙烯 - 丙烯弹性体共聚物

    公开(公告)号:US5491208A

    公开(公告)日:1996-02-13

    申请号:US221256

    申请日:1994-03-31

    CPC分类号: C08F210/16

    摘要: In an improved process for producing elastomeric ethylene-propylene copolymers with a propylene content comprised within the range of from 22 to 38% by weight and a content of residual chlorine, coming from the co-catalyst, lower than 300 parts per million parts, the polymerization is carried out in suspension in the monomers in the liquid state, with vanadium triacetylacetonate and alkyl-Al compounds, and the obtained polymer is recovered without any washing steps.

    摘要翻译: 在制备弹性体乙烯 - 丙烯共聚物的改进方法中,丙烯含量为22至38重量%,来自助催化剂的残留氯含量低于300份/份, 在液态的单体中以三乙酰丙酮钒和烷基铝化合物的悬浮液进行聚合,并且在没有任何洗涤步骤的情况下回收得到的聚合物。