Catalyst composition for preparing olefin polymers
    4.
    发明授权
    Catalyst composition for preparing olefin polymers 有权
    用于制备烯烃聚合物的催化剂组合物

    公开(公告)号:US06930157B2

    公开(公告)日:2005-08-16

    申请号:US10459485

    申请日:2003-06-12

    摘要: A catalyst composition for preparing olefin polymers. The catalyst composition includes a metallocene compound and an activating cocatalyst. In the metallocene compound, two cyclopentadienyl groups are bridged by X (carbon, silicon, germanium or tin) in a ring structure. The bite angle θ formed by the two cyclopentadienyl rings and X is equal to or greater than 100 degrees. The obtained olefin polymer has high cycloolefin conversion and a high glass transition temperature. In addition, the catalyst composition can still maintain relatively high activity at high temperature reaction conditions.

    摘要翻译: 一种用于制备烯烃聚合物的催化剂组合物。 催化剂组合物包括茂金属化合物和活化助催化剂。 在茂金属化合物中,两个环戊二烯基被环状结构中的X(碳,硅,锗或锡)桥连。 由两个环戊二烯基环形成的咬角θ和X等于或大于100度。 所得烯烃聚合物具有高环烯烃转化率和高玻璃化转变温度。 此外,催化剂组合物在高温反应条件下仍能维持较高的活性。

    Catalyst composition for preparing olefin polymers
    5.
    发明授权
    Catalyst composition for preparing olefin polymers 有权
    用于制备烯烃聚合物的催化剂组合物

    公开(公告)号:US06875719B2

    公开(公告)日:2005-04-05

    申请号:US10244435

    申请日:2002-09-17

    摘要: A catalyst composition for preparing olefin polymers. The catalyst composition includes a metallocene compound and an activating cocatalyst. In the metallocene compound, two cyclopentadienyl groups are bridged by X (carbon) in a ring structure and the bridge X forms a three-, four-, or five-member ring structure. The bite angle θ formed by the two cyclopentadienyl rings and X is equal to or greater than 100 degrees. The obtained olefin polymer has high cycloolefin conversion and a high glass transition temperature. In addition, the catalyst composition can still maintain relatively high activity at high temperature reaction conditions. The metallocene compound is represented by formula (I) below.

    摘要翻译: 一种用于制备烯烃聚合物的催化剂组合物。 催化剂组合物包括茂金属化合物和活化助催化剂。 在金属茂化合物中,两个环戊二烯基在环结构中被X(碳)桥连,桥X形成三,四或五元环结构。 由两个环戊二烯基环形成的咬角θ和X等于或大于100度。 所得烯烃聚合物具有高环烯烃转化率和高玻璃化转变温度。 此外,催化剂组合物在高温反应条件下仍能维持较高的活性。 金属茂化合物由下式(I)表示。