Procatalyst composition for the polymerization of alpha-olefines,
preparation and use
    1.
    发明授权
    Procatalyst composition for the polymerization of alpha-olefines, preparation and use 失效
    用于α-烯烃聚合的主催化剂组合物,制备和使用

    公开(公告)号:US5461018A

    公开(公告)日:1995-10-24

    申请号:US214656

    申请日:1994-03-16

    CPC分类号: C08F10/00

    摘要: The present invention relates to a procatalyst composition for the polymerization of alpha-olefines, which has been prepared in steps, in which is arranged a carrier agent based on at least one inorganic oxide, having few or no hydroxyl groups on its surface, and the carier agent is reacted with the magnesium compound and one or more transition metal compounds of the groups IVB and VB of the periodic table. It has been observed that such a catalyst is most-advantageous when a) this carrier agent is impregnated with a mixture of the Mg compound and one or more compounds of a transition metal of the groups IVb or Vb of the periodic table, which dissolves the Mg compound, and b) by chlorinating with a compound that does not contain titanium so that 1) the carrier is first treated with a mixture in the form of a solution of the Mg compound and the transition metal compound and the product thus obtained is chlorinated, or 2) the carrier is first chlorinated and subsequently treated with the above mixture in the form of a solution, or 3) the Mg compound and the transition metal compound are impregnated into the carrier without any separate dissolving and the product thus obtained is chlorinated.

    摘要翻译: 本发明涉及一种用于α-烯烃聚合的主催化剂组合物,其已经按步骤制备,其中在其表面上布置有基于至少一种在其表面上具有很少或没有羟基的无机氧化物的载体剂, 羧化剂与镁化合物和元素周期表IVB和VB族的一种或多种过渡金属化合物反应。 已经观察到,当a)用Mg化合物和周期表IVb或Vb族的过渡金属的一种或多种化合物的混合物浸渍该载体时,这种催化剂是最有利的,其溶解了 Mg化合物,b)通过用不含钛的化合物进行氯化,使得1)载体首先用Mg化合物和过渡金属化合物溶液形式的混合物处理,并将得到的产物氯化 ,或2)首先将载体氯化并随后用溶液形式的上述混合物处理,或3)将Mg化合物和过渡金属化合物浸渍到载体中而不会单独溶解,并将得到的产物进行氯化 。

    Procatalyst composition for homo- and copolymerization of alpha olefins,
its preparation and its use
    3.
    发明授权
    Procatalyst composition for homo- and copolymerization of alpha olefins, its preparation and its use 失效
    用于α-烯烃均聚和共聚的主催化剂组合物,其制备及其用途

    公开(公告)号:US5583083A

    公开(公告)日:1996-12-10

    申请号:US500813

    申请日:1995-07-10

    IPC分类号: C08F10/00 B01J21/06

    CPC分类号: C08F10/00

    摘要: A procatalyst composition which is suitable for the homo- and copolymerization of alpha olefins together with an organometallic cocatalyst compound and which is prepared by treating an inorganic carrier with a component system containing a complex of a magnesium halide and a tetraalkyl titanate, and a chlorinating compound which does not contain a transition metal compound. In order to raise the Mg:Ti ratio, the component system additionally contains an organomagnesium compound.

    摘要翻译: 一种适用于α-烯烃与有机金属助催化剂化合物同时和共聚合的主催化剂组合物,其通过用含有卤化镁和钛酸四烷基酯的络合物的组分体系和氯化化合物处理无机载体而制备 其不含过渡金属化合物。 为了提高Mg:Ti比,组分体系另外含有有机镁化合物。

    New carrier catalyst for the polymerization of ethylene
    4.
    发明授权
    New carrier catalyst for the polymerization of ethylene 失效
    用于乙烯聚合的新载体催化剂

    公开(公告)号:US5324698A

    公开(公告)日:1994-06-28

    申请号:US947967

    申请日:1992-09-21

    摘要: A problem in the conventional olefin polymerization catalyst systems, the procatalysts of which are based on a solid carrier and a titanium compound and an electron donor on its surface, is that unsufficiently high activities are achieved by the morphology of the carrier. Moreover, the active age of such a catalyst in the polymerization is too short. These problems have now been solved by the olefin polymerization catalyst system according to the invention, the procatalyst of which comprises a solid carrier and a layer on its surface consisting of a titanium compound, a magnesium compound and an electron donor. The advantages of the invention become more emphasized when using monocyclopentadienyl titaniumtrichloride as the titanium compound.

    摘要翻译: 传统的烯烃聚合催化剂体系中,其原催化剂基于固体载体和钛化合物及其表面上的电子给体的问题是通过载体的形态实现了不足够的高活性。 此外,聚合中这种催化剂的活性时间太短。 这些问题现在已经通过本发明的烯烃聚合催化剂体系解决了,其主催化剂包含固体载体和在其表面上由钛化合物,镁化合物和电子给体组成的层。 当使用单环戊二烯基二氯化钛作为钛化合物时,本发明的优点变得更加突出。