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    Process for producing polyethlene
    1.
    发明授权
    Process for producing polyethlene 有权
    生产聚乙烯的方法

    公开(公告)号：US06228957B1

    公开(公告)日：2001-05-08

    申请号：US09251356

    申请日：1999-02-17

    申请人： Randal Ray Ford ,  William Albert Ames ,  Kenneth Alan Dooley ,  Jeffrey James Vanderbilt ,  Alan George Wonders

    发明人： Randal Ray Ford ,  William Albert Ames ,  Kenneth Alan Dooley ,  Jeffrey James Vanderbilt ,  Alan George Wonders

    IPC分类号： C08F410

    CPC分类号： C08F10/00 ,  C08F210/16 ,  Y10S526/901 ,  Y10S526/903 ,  C08F4/6493 ,  C08F4/6494 ,  C08F210/14 ,  C08F2500/12 ,  C08F2500/26

    摘要： A novel process for producing homopolymers and copolymers of ethylene which involves contacting ethylene and/or ethylene and at least one or more olefin comonomer(s) under polymerization conditions with a Ziegler-Natta type catalyst substantially free of internal electron donor, trimethylaluminum and at least one compound containing at least one carbon-oxygen-carbon linkage (C—O—C) of the formula R1—O(—R2—O)n—R3 where n ranges from 0 to 30, and R1, R2 and R3 independently contain from 1 to 30 carbon atoms and from 0 to 30 heteroatoms of an element, or mixtures thereof, selected from Groups 13, 14, 15, 16 and 17 of the Periodic Table of Elements, and further wherein R1, R2 and/or R3 can be linked and form part of a cyclic or polycyclic structure. Also provided are films and articles produced therefrom.

    摘要翻译： 一种用于生产乙烯均聚物和共聚物的新方法，其包括在聚合条件下使乙烯和/或乙烯与至少一种或多种烯烃共聚单体与基本上不含内电子供体的齐格勒 - 纳塔型催化剂接触，并且至少 一种含有至少一个式R 1 -O（-R 2 -O）n -R 3的碳 - 碳 - 碳键（COC）的化合物，其中n为0至30，R 1，R 2和R 3独立地为1至30 碳原子和0至30个选自元素周期表第13,14,15,16和17族的元素或其混合物的杂原子，并且其中R 1，R 2和/或R 3可以连接并形成 部分环状或多环结构。 还提供了由其制备的薄膜和制品。

    Process for producing polyethylene
    4.
    发明授权
    Process for producing polyethylene 有权
    生产聚乙烯的方法

    公开(公告)号：US06271321B1

    公开(公告)日：2001-08-07

    申请号：US09251969

    申请日：1999-02-17

    申请人： Randal Ray Ford ,  William Albert Ames ,  Kenneth Alan Dooley ,  Jeffrey James Vanderbilt ,  Alan George Wonders

    发明人： Randal Ray Ford ,  William Albert Ames ,  Kenneth Alan Dooley ,  Jeffrey James Vanderbilt ,  Alan George Wonders

    IPC分类号： C08F416

    CPC分类号： C08F10/00 ,  C08F210/16 ,  C08F4/6493 ,  C08F4/6494 ,  C08F210/14 ,  C08F2500/12

    摘要： A novel process for producing homopolymers and copolymers of ethylene which involves contacting ethylene and/or ethylene and at least one or more other olefin(s) under polymerization conditions with a Ziegler-Natta type catalyst containing at least one or more internal electron donors, trimethylaluminum and at least one or more external electron donors containing at least one carbon-oxygen-carbon linkage (C—O—C) selected from the group consisting of Formula 1, R1—CH2—O—CH2—R2, Formula 2, Formula 3, R5—O—R6, and Formula 4, R7—O(—R8—O)n—R9. Also provided are films and articles produced therefrom.

    摘要翻译： 一种用于生产乙烯均聚物和共聚物的新方法，其包括在聚合条件下使乙烯和/或乙烯与至少一种或多种其它烯烃与含有至少一种或多种内部电子给体的齐格勒 - 纳塔型催化剂接触，三甲基铝 和至少一种或多种含有选自由式1，式2，式3和式4组成的组中的至少一个碳 - 碳 - 碳键（COC）的外部电子给体。还提供了由其制备的薄膜和制品。