Process for polymerizing ethylene in the presence of a catalyst
composition
    2.
    发明授权
    Process for polymerizing ethylene in the presence of a catalyst composition 失效
    在催化剂组合物存在下聚合乙烯的方法

    公开(公告)号:US5777050A

    公开(公告)日:1998-07-07

    申请号:US929467

    申请日:1997-09-15

    CPC分类号: C08F10/00 C08F210/16

    摘要: A process is disclosed for the homopolymerization of ethylene or copolymerization of ethylene with one or more .alpha.-olefins with 3-12 carbon atoms and optionally one or more non-conjugated dienes in solution in the presence of a catalyst system containing a catalyst A and a cocatalyst B, of which catalyst A is obtained by reacting, under inert conditions, the following components: (a) one or more organomagnesium compounds with alkyl and/or alkoxy groups bonded to the magnesium, (b) one or more chlorine-containing organoaluminum compounds and/or boron compounds, (c) one or more oxygen-containing compounds, (d) one or more transition metal compounds with alkyl, alkoxy and/or halogenide groups bonded to the transition metal; in the order (a), (b), (c), (d), or (a), (b), (d), (c), or (a), (b) and a reaction product of (c) and (d)=(e), wherein the atomic ratio of aluminum and/or boron of (b) to magnesium of (a) is between 2 and 15, the atomic ratio of magnesium of (a) to transition metal from (d) or (e) is between 3 and 100, the atomic ratio of oxygen from (c) or (e) to the magnesium of (a) is between 0.1 and 5, and/or washing the catalyst A. One or more organoaluminum compounds and/or boron compounds can be used as cocatalyst B.

    摘要翻译: 公开了一种用于在含有催化剂A和催化剂A的催化剂体系存在下乙烯均聚或乙烯与一种或多种具有3-12个碳原子的α-烯烃和任选的一种或多种非共轭二烯在溶液中共聚的方法 助催化剂B,其催化剂A通过在惰性条件下使下列组分反应获得:(a)一种或多种与镁结合的烷基和/或烷氧基的有机镁化合物,(b)一种或多种含氯有机铝 化合物和/或硼化合物,(c)一种或多种含氧化合物,(d)一种或多种与过渡金属键合的具有烷基,烷氧基和/或卤化物基团的过渡金属化合物; 按照(a),(b),(c),(d)或(a),(b),(d),(c)或(a),(b) c)和(d)=(e),其中(b)的铝和/或硼与(a)的镁的原子比在2和15之间,(a)的镁与过渡金属的原子比 (d)或(e)为3〜100,(c)或(e)的氧与(a)的镁的原子比为0.1〜5,和/或洗涤催化剂A.一个或多个 有机铝化合物和/或硼化合物可用作助催化剂B.