Metallocene compound and its use as catalyst component
    1.
    发明授权
    Metallocene compound and its use as catalyst component 失效
    茂金属化合物及其用作催化剂成分

    公开(公告)号:US6114556A

    公开(公告)日:2000-09-05

    申请号:US354121

    申请日:1999-07-15

    摘要: Metallocene compound and its use as catalyst component The present invention relates to a multinuclear metallocene compound of the formula I, ##STR1## where M.sup.1 is a tetravalent metal, L.sup.1 are, independently of one another, identical or different and are each a substituted cyclopentadienyl group, L.sup.2 and L.sup.3 are, independently of one another, identical or different and are each a .pi. ligand, B are, independently of one another, identical or different and are each a divalent bridging unit, X are, independently of one another, identical or different and are each a hydrogen atom, a halogen atom, a C.sub.1 -C.sub.10 -fluorocarbon radical or a hydrocarbon-containing radical having 1-40 carbon atoms, and k is an integer from 0 to 10. The metallocene compound of the present invention is suitable as a catalyst component for preparing olefin polymers.

    摘要翻译: 金属茂化合物及其作为催化剂组分的用途本发明涉及式I的多核金属茂化合物,其中M1是四价金属,L1彼此相同或相同,各自为取代的环戊二烯基,L2和 L3彼此独立地相同或不同,并且各自为π配体,B彼此独立地相同或不同,并且各自为二价桥连单元,X彼此独立地相同或不同,为 各自为氢原子,卤原子,C1-C10-氟烃基或含有1-40个碳原子的烃基,k为0至10的整数。本发明的茂金属化合物适合作为 用于制备烯烃聚合物的催化剂组分。

    Process for the preparation of polyolefin waxes
    8.
    发明授权
    Process for the preparation of polyolefin waxes 失效
    制备聚烯烃蜡的方法

    公开(公告)号:US5750813A

    公开(公告)日:1998-05-12

    申请号:US353144

    申请日:1994-12-09

    摘要: A process for the preparation of a polyolefin wax by polymerization or copolymerization of olefins or diolefins in suspension and in the presence of a catalyst. The process utilizes a metallocene and a cocatalyst, wherein the metallocene is a compound of the formula I ##STR1## in which M.sup.1 is a metal of group IVb, Vb or VIb of the Periodic Table of Elements, R.sup.1 and R.sup.2 are identical or different and are a hydrogen atom, a C.sub.1 -C.sub.10 -alkyl group, a C.sub.1 -C.sub.10 -alkoxy group, a C.sub.6 -C.sub.10 -aryl group, a C.sub.6 -C.sub.10 -aryloxy group, a C.sub.2 -C.sub.10 -alkenyl group, a C.sub.7 -C.sub.40 -arylalkyl group, a C.sub.7 -C.sub.40 -alkylaryl group, a C.sub.8 -C.sub.40 -arylalkenyl group or a halogen atom and R.sup.3 and R.sup.4 are identical or different and are a mononuclear or polynuclear hydrocarbon radical which may form a sandwich structure with the central atom M.sup.1, low-boiling hydrocarbons having 3 or 4 carbon atoms or low-boiling halogenated hydrocarbons are used as suspending agents and the heat of reaction is removed by evaporative cooling.

    摘要翻译: 一种通过在悬浮液中和在催化剂存在下聚合或共聚烯烃或二烯烃来制备聚烯烃蜡的方法。 该方法使用金属茂和助催化剂,其中茂金属是式I的化合物(Ⅰ),其中M1是元素周期表IVb族,Vb或VIb族的金属,R1和R2是相同的 或不同,为氢原子,C1-C10-烷基,C1-C10-烷氧基,C6-C10-芳基,C6-C10-芳氧基,C2-C10-烯基,C7 -C 40 - 芳基烷基,C 7 -C 40 - 烷基芳基,C 8 -C 40 - 芳基烯基或卤素原子,R 3和R 4相同或不同,并且是单核或多核烃基,其可形成具有中心 使用原子M1,具有3或4个碳原子的低沸点烃或低沸点卤代烃作为悬浮剂,通过蒸发冷却除去反应热。