Process for preparing crystalline ethylene (co)polymers
    4.
    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。

    Components and catalysts for the polymerization of olefins
    10.
    发明申请
    Components and catalysts for the polymerization of olefins 有权
    用于烯烃聚合的组分和催化剂

    公开(公告)号:US20060105906A1

    公开(公告)日:2006-05-18

    申请号:US10527298

    申请日:2003-08-01

    IPC分类号: B01J31/00 C08F4/44

    摘要: The present invention relates to a solid catalyst component for the polymerization of olefins CH2═CHR in which R is hydrogen or a hydrocarbon radical with 1-12 carbon atoms, comprising Mg, Ti, halogen and an electron donor selected from succinates, said catalyst component being obtainable by a process comprising the following steps: (a) dissolving a halide of magnesium in a solvent system comprising an organic epoxy compound or an organic phosphorus compound and optionally an inert diluent to form a solution; (b) mixing the obtained solution with a titanium compound to form a mixture; (c) precipitating a solid from the mixture obtained in step (b) in the presence of a succinate and/or an auxiliary precipitant; (d) if a succinate is not used in step (c), contacting the solid obtained in (c) with a succinate, and (e) treating the solid obtained in (c) or (d) with a titanium compound optionally in the presence of an inert diluent.

    摘要翻译: 本发明涉及用于烯烃CH 2 -CHR的聚合的固体催化剂组分,其中R是氢或具有1-12个碳原子的烃基,包括Mg,Ti,卤素和电子 所述催化剂组分可通过包括以下步骤的方法获得:(a)将镁的卤化物溶解在包含有机环氧化合物或有机磷化合物和任选的惰性稀释剂的溶剂体系中以形成溶液; (b)将所得溶液与钛化合物混合以形成混合物; (c)在琥珀酸盐和/或辅助沉淀剂存在下从步骤(b)中获得的混合物中沉淀出固体; (d)如果在步骤(c)中不使用琥珀酸酯,则将(c)中得到的固体与琥珀酸酯接触,和(e)用钛化合物处理在(c)或(d)中获得的固体, 存在惰性稀释剂。