Process for preparing crystalline ethylene (co)polymers
    6.
    发明授权
    Process for preparing crystalline ethylene (co)polymers 有权
    制备结晶乙烯(共)聚合物的方法

    公开(公告)号:US07834117B2

    公开(公告)日:2010-11-16

    申请号:US11887527

    申请日:2006-03-15

    IPC分类号: C08F110/02

    摘要: A process for preparing crystalline ethylene (co)polymers comprising (co)polymerizing ethylene in the presence of carried out in the presence catalyst system comprising (a) a solid catalyst component comprising Ti, Mg, halogen, ORI groups, where RI is a C1-C12 hydrocarbon group optionally containing heteroatoms, having ORI/Ti molar ratio of at least 0.5, an amount of titanium, with respect to the total weight of said solid catalyst component, higher than 4% by weight, and showing a specific pattern of the SS-NMR; and (b) an aluminum alkyl compound as a cocatalyst. The process allows to obtain in good yields ethylene polymers with narrow MWD.

    摘要翻译: 在包含(a)包含Ti,Mg,卤素,ORI基团的固体催化剂组分的情况下,在存在催化剂体系的情况下,制备结晶乙烯(共)聚合物的方法,包括(共)聚合乙烯,其中RI是C1 -C12烃基,任选地含有杂原子,ORI / Ti摩尔比至少为0.5,相对于所述固体催化剂组分的总重量,钛的量高于4重量%,并且显示了 SS-NMR; 和(b)作为助催化剂的烷基铝化合物。 该方法允许以良好的产率获得具有窄MWD的乙烯聚合物。