Process for polymerizing ethylene in the presence of a catalyst
composition
    1.
    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.

    Catalyst system for the polymerization of ethylene
    2.
    发明授权
    Catalyst system for the polymerization of ethylene 失效
    用于乙烯聚合的催化剂体系

    公开(公告)号:US6031056A

    公开(公告)日:2000-02-29

    申请号:US774644

    申请日:1996-12-30

    CPC分类号: C08F210/18 C08F210/16

    摘要: The invention relates to the preparation of the disclosed catalyst system and to the homo- or copolymerization of ethylene with the aid of this catalyst system. The catalyst system contains a catalyst A and a cocatalyst B which, system is suitable for the homopolymerization of ethylene or copolymerization of ethylene with one or more .alpha.-olefins having 3-12 carbon atoms and optionally one or more non-conjugated dienes. Catalyst A contains one or more organomagnesium compounds, one or more transition metal compounds, and one or more halides that do not react spontaneously with the organomagnesium compound(s). The catalyst system also contains at least one transfer agent.

    摘要翻译: 本发明涉及所公开的催化剂体系的制备和乙烯在该催化剂体系的帮助下的均相或共聚。 催化剂体系含有催化剂A和助催化剂B,其系统适用于乙烯的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的共聚合。 催化剂A含有一种或多种有机镁化合物,一种或多种过渡金属化合物和一种或多种不与有机镁化合物自发反应的卤化物。 催化剂体系还含有至少一种转移剂。