UNIQUE SUPPORTED METALLOCENE CATALYST FOR PRODUCING SYNDIOTACTIC STYRENIC POLYMER
    5.
    发明申请
    UNIQUE SUPPORTED METALLOCENE CATALYST FOR PRODUCING SYNDIOTACTIC STYRENIC POLYMER 审中-公开
    用于生产SYNDIOTACTIC STYRENIC POLYMER的独特的支持金属催化剂

    公开(公告)号:WO01049748A1

    公开(公告)日:2001-07-12

    申请号:PCT/KR2000/001487

    申请日:2000-12-18

    摘要: The present invention provides a supported catalyst comprising (A) a polymer (B) a supporter, (C) a transition metal compound, and optionally (D) (a) a compound which can form an ionic complex by the reaction with the transition metal compound or (b) a specific oxygen-containing compound, and (E) an alkylaluminum compound. The supported catalyst according to present invention, which has a high activity, can be used for preparing a styrenic polymer with a high syndiotacticity. The supported catalyst can be used in combination with a cocatalyst, preferably an alkyl aluminoxane.

    摘要翻译: 本发明提供一种载体催化剂,其包含(A)聚合物(B),载体,(C)过渡金属化合物和任选的(D)(a)通过与过渡金属反应形成离子络合物的化合物 化合物或(b)特定含氧化合物,和(E)烷基铝化合物。 具有高活性的本发明的负载催化剂可用于制备具有高间同立构规整度的苯乙烯聚合物。 负载型催化剂可以与助催化剂,优选烷基铝氧烷组合使用。

    PROCESS FOR MAKING POLYOLEFINS
    6.
    发明申请
    PROCESS FOR MAKING POLYOLEFINS 审中-公开
    制备聚烯烃的方法

    公开(公告)号:WO01021669A1

    公开(公告)日:2001-03-29

    申请号:PCT/US2000/021865

    申请日:2000-08-10

    摘要: A two-step olefin polymerization process is disclosed. A single-site catalyst precursor reacts with a boron-containing activator and a first olefin substantially in the absence of an alumoxane to produce a stable, prepolymer complex, which is then used to polymerize a second olefin in the presence of a scavenging amount of an alumoxane. The process gives high molecular weight polyolefins with low residual aluminum contents. Boron-containing activators can be used, even at reaction temperatures greater than 100 DEG C, while maintaining high catalyst activity.

    摘要翻译: 公开了两步烯烃聚合方法。 单中心催化剂前体与基本上不存在铝氧烷的含硼活化剂和第一烯烃反应以产生稳定的预聚物络合物,然后将其用于在清除量为 铝氧烷。 该方法得到具有低残留铝含量的高分子量聚烯烃。 即使在高于100℃的反应温度下,也可以使用含硼活化剂,同时保持高催化剂活性。

    PROPYLENE TERPOLYMERS WITH A LOW EXTRACTABLE PORTION
    7.
    发明申请
    PROPYLENE TERPOLYMERS WITH A LOW EXTRACTABLE PORTION 审中-公开
    丙烯三元共聚物LOW提取SHARE

    公开(公告)号:WO99067307A1

    公开(公告)日:1999-12-29

    申请号:PCT/EP1999/003810

    申请日:1999-06-02

    摘要: The invention relates to propylene terpolymers containing between 80 and 99.5 mol % structural units derived from propylene, between 0.1 and 15 mol % structural units derived from ethene or a C4-C6-1-olefin (I) and between 0.1 and 15 mol % structural units derived from a C4-C12-1-olefin (II) which differs from the C4-C6-1-olefin (I). The propylene terpolymers contain a proportion of regioregularly '1-2' inserted propylene units corresponding to formula (1) of more than 0.99, have a melting point TM, determined on the basis of the differential scanning calorimetry peak maximum, of less than 135 DEG C and a molar mass (MW) weight average of more than 80,000 g/mol. The xylol-soluble portion (XL) of the propylene terpolymers in weight % corresponds to the inequation (2): XL

    摘要翻译: 具有80〜99.5摩尔%的由丙烯衍生的结构单元,0.1〜15摩尔%由乙烯和C 4或C6-1烯烃(I)为0的结构单元的丙烯三元共聚物, 从彼此不同的结构单元,选自C 4 -C C6-1烯烃(I)的1〜15摩尔%,得到的C4-C12-1烯烃(II),其中,所述丙烯三元共聚物的区域规整“1-的比例 2'-插入对应于式丙烯单元(1),包括大于0.99,熔点(TM),从DSC峰最大值,小于135℃的和以上的重均分子量(MW)大于确定 具有80,000克/摩尔,其中以重量的丙烯三元共聚物的二甲苯可溶部分(XL).-以下不等式的%(2):XL