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    Catalysts for the preparation of polyethylene with a wide distribution of molecular weights
    2.
    发明公开
    Catalysts for the preparation of polyethylene with a wide distribution of molecular weights 失效
    Katalysatoren zur Herstellung vonPolyäthylenmit grosser Molekulargewichtsverteilung。

    公开(公告)号：EP0273208A2

    公开(公告)日：1988-07-06

    申请号：EP87117600.4

    申请日：1987-11-27

    申请人： SPHERILENE S.r.l.

    发明人： Dall'Occo, Tiziano ,  Zucchini, Umberto ,  Cuffiani, Illaro

    IPC分类号： C08F10/00 ,  C08F4/16 ,  C08F4/64

    CPC分类号： C08F10/02 ,  C08F4/6545

    摘要： Catalysts for the polymerization of ethylene or of its mixtures with alpha-olefins, obtained from an organometallic compound of aluminum, and from a solid catalytic component comprising:

    A. An anhydrous magnesium halide in active form, as the support;
    B. a halogenated compound of titanium;
    C. a halogenated compound of hafnium.

    Said catalysts are characterized in that they produce, by means of single-step polymerization processes, ethylene polymers or copolymers, having a wide distribution of molecular weights.

    摘要翻译： 用于从由铝的有机金属化合物和固体催化组分获得的乙烯或其与α-烯烃的混合物的聚合的催化剂，其包含：A.作为载体的活性形式的无水卤化镁; B.钛的卤代化合物; C.铪的卤化化合物。 所述催化剂的特征在于它们通过单步聚合方法生产具有广泛分子量分布的乙烯聚合物或共聚物。