Silica supported vanadium carboxylate catalysts
    3.
    发明授权
    Silica supported vanadium carboxylate catalysts 失效
    二氧化硅负载的羧酸钒催化剂

    公开(公告)号:US5002916A

    公开(公告)日:1991-03-26

    申请号:US487692

    申请日:1990-03-02

    IPC分类号: C08F4/68 C08F210/16

    CPC分类号: C08F210/16

    摘要: Supported catalysts component for producing ethylene-propylene elastomers comprising a compound represented by the formula:(1) [V.sub.3 O(RCO.sub.2) (ED).sub.3 ].sub.2. V.sub.2 O.sub.2 X.sub.6, or(2) V.sub.3 O(RCO.sub.2).sub.6 (ED).sub.3wherein R is alkyl, cycloalkyl, aryl and haloalkyl,wherein R is alkyl, cycloalkyl, aryl and haloalkyl,ED is an electron donor selected from alkyl esters of aliphatic and aromatic carboxylic acid, aliphatic ketones, aliphatic amines, aliphatic alcohols, alkyl and cycloalkyl ethers, and mixtures thereof; andX is selected from Cl--, Br--, Fl-- or RCO.sub.2.sup.--.

    摘要翻译: 用于生产乙烯 - 丙烯弹性体的载体催化剂组分,其包含由下式表示的化合物:(1)[V3O(RCO 2)(ED)3] 2。 V2O2X6或(2)V3O(RCO2)6(ED)3,其中R是烷基,环烷基,芳基和卤代烷基,其中R是烷基,环烷基,芳基和卤代烷基,ED是选自脂族和芳族的烷基酯 羧酸,脂族酮,脂族胺,脂族醇,烷基和环烷基醚及其混合物; X选自Cl-,Br-,Fl-或RCO2-。

    Method for preparing metallocene catalyst systems
    4.
    发明授权
    Method for preparing metallocene catalyst systems 失效
    制备茂金属催化剂体系的方法

    公开(公告)号:US5635437A

    公开(公告)日:1997-06-03

    申请号:US506995

    申请日:1995-07-28

    摘要: This invention is generally directed toward a method for producing metallocene catalyst systems. Specifically, the method involves removing solid impurities from a solution of activated metallocene wherein activation has the effect of solubilizing the metallocene but not the impurities. The resulting catalyst system is higher in activity and produces polymer having excellent particle morphology with little or no reactor fouling.

    摘要翻译: 本发明一般涉及一种生产茂金属催化剂体系的方法。 具体地,该方法包括从活化的茂金属溶液中除去固体杂质,其中活化具有增溶金属茂但不含杂质的作用。 所得催化剂体系的活性较高,并且产生具有优异的颗粒形态,很少或没有反应器结垢的聚合物。