Process of melt index control
    2.
    发明授权
    Process of melt index control 有权
    熔体指数控制过程

    公开(公告)号:US08809472B2

    公开(公告)日:2014-08-19

    申请号:US13094408

    申请日:2011-04-26

    Abstract: A method comprising contacting an olefin in the presence of a catalyst and a melt index modifier (MIM) under conditions suitable to form a polyolefin and recovering the polyolefin, wherein the polyolefin melt index is increased by at least about 25%, wherein the normalized catalyst activity is decreased by less than about 10%, and wherein the MIM is characterized by the general formula R1—HC═CH—R2 or R3R4C═CH2 where R1, R2, R3, R4 are each selected from the group consisting of a non-aromatic organyl group.

    Abstract translation: 一种方法,包括在适于形成聚烯烃和回收聚烯烃的条件下,在催化剂和熔体指数调节剂(MIM)存在下使烯烃接触,其中聚烯烃熔体指数增加至少约25%,其中归一化催化剂 活性降低小于约10%,其中MIM的特征在于通式为R 1 -H HC = CH-R 2或R 3 R 4C≡CH2,其中R 1,R 2,R 3,R 4各自选自非 - 芳香族有机基团。

    Ethylene elastomer compositions
    5.
    发明授权
    Ethylene elastomer compositions 有权
    乙烯弹性体组合物

    公开(公告)号:US07943711B2

    公开(公告)日:2011-05-17

    申请号:US11803400

    申请日:2007-05-14

    Abstract: In a process for producing an elastomer composition, ethylene, at least one alpha-olefin, and at least one diene is contacted with a catalyst system comprising at least two metallocene catalyst compounds and a non-coordinating anion activator wherein one of the metallocene catalyst compounds is an indenyl complex having the general formula: (In1R1m)R3(In2R2p)MXq, and at least one metallocene catalyst compound comprises a compound having the general formula: wherein M is a transition metal from Group 3, 4, or 5 of the Periodic Table of the Elements and other deatures defined herein.

    Abstract translation: 在制备弹性体组合物的方法中,将乙烯,至少一种α-烯烃和至少一种二烯与包含至少两种茂金属催化剂化合物和非配位阴离子活化剂的催化剂体系接触,其中一种茂金属催化剂化合物 是具有以下通式的茚基络合物:(In1R1m)R3(In2R2p)MXq,并且至少一种茂金属催化剂化合物包含具有以下通式的化合物:其中M为周期表第3,4,5族的过渡金属 本文定义的元素表和其他变体。

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