Ethylene-based polymer compositions, methods of making the same, and articles prepared from the same
    4.
    发明授权
    Ethylene-based polymer compositions, methods of making the same, and articles prepared from the same 有权
    乙烯基聚合物组合物,其制备方法和由其制备的制品

    公开(公告)号:US09175111B2

    公开(公告)日:2015-11-03

    申请号:US12811015

    申请日:2008-12-18

    摘要: The invention provides a composition comprising a blend, which comprises a high molecular weight ethylene-based polymer, and a low molecular weight ethylene-based polymer, and wherein the high molecular weight ethylene-based polymer has a density less than, or equal to, 0.955 g/cm3, and wherein the blend has a high load melt index (I21) greater than, or equal to, 15 g/10 min, and wherein the blend has a molecular weight distribution (Mw/Mn) greater than, or equal to, 15. The invention also provides a composition comprising a blend, which comprises a high molecular weight ethylene-based polymer and a low molecular weight ethylene-based polymer, and wherein the high molecular weight ethylene-based polymer component has a density less than, or equal to, 0.945 g/cm3, and a melt index (I2) less than, or equal to, 0.1 g/10 min, and wherein the blend has a high load melt index (I21) less than, or equal to, 15 g/10 min, and a melt index (I5) less than, or equal to 1 g/10 min, and a molecular weight distribution (Mw/Mn) greater than, or equal to, 15. Additional compositions are disclosed.

    摘要翻译: 本发明提供一种包含共混物的组合物,其包含高分子量乙烯基聚合物和低分子量乙烯基聚合物,并且其中所述高分子量乙烯基聚合物的密度小于或等于 0.955g / cm 3,并且其中所述共混物具有大于或等于15g / 10min的高负荷熔体指数(I21),并且其中所述共混物的分子量分布(Mw / Mn)大于或等于 本发明还提供一种包含共混物的组合物,其包含高分子量乙烯基聚合物和低分子量乙烯基聚合物,并且其中高分子量乙烯基聚合物组分的密度小于 ,或等于0.945g / cm 3,熔体指数(I 2)小于或等于0.1g / 10min,并且其中所述共混物具有小于或等于的熔体指数(I 21) 15g / 10min,熔体指数(I5)小于或等于1g / 10min,分子w 八分配(Mw / Mn)大于或等于15.另外的组合物被公开。

    Method of making Ziegler-Natta type catalysts
    6.
    发明授权
    Method of making Ziegler-Natta type catalysts 有权
    齐格勒 - 纳塔型催化剂的制备方法

    公开(公告)号:US08809220B2

    公开(公告)日:2014-08-19

    申请号:US12759515

    申请日:2010-04-13

    摘要: A process for making a Ziegler-Natta-type catalyst precursor including contacting a Group 4 metal compound with one or more Titanium compounds selected from the group of TiCl3 (Al-activated or hydrogen-reduced), and Ti(OR)4 where R is ethyl, isopropyl or butyl in the presence of an alcohol solution having at least one C2-C4 alcohol and at least one of MgCl2 and magnesium compounds which form MgCl2 in the presence of the alcohol solution to form a catalyst precursor solution is provided. Also provided are catalysts made from the precursors produced by the process. Also provided are polymers made using the catalysts.

    摘要翻译: 包括使第4族金属化合物与选自TiCl 3(Al活化或还原氢)和Ti(OR)4中的一种或多种钛化合物接触的齐格勒 - 纳塔型催化剂前体的方法,其中R为 乙醇,异丙基或丁基,在醇溶液存在下,在具有至少一种C 2 -C 4醇的醇溶液和至少一种形成MgCl 2的MgCl 2和镁化合物的存在下,提供了形成催化剂前体溶液的方法。 还提供了由由该方法制备的前体制成的催化剂。 还提供了使用这些催化剂制备的聚合物。

    Shape-shifted magnesium alkoxide component for polymerizing olefins
    8.
    发明授权
    Shape-shifted magnesium alkoxide component for polymerizing olefins 失效
    用于聚合烯烃的形状转化的醇镁组分

    公开(公告)号:US5604172A

    公开(公告)日:1997-02-18

    申请号:US595777

    申请日:1996-02-02

    摘要: A process is provided for preparing a shape-shifted catalyst component comprising (1) contacting a dihydrocarbyloxide magnesium compound with carbon dioxide in the presence of a slurrying agent to form a slurry of a carboxylated dihydrocarbyloxide magnesium compound; (2) adding a filler to the slurry either before or after the carboxylation of step (1); (3) spray drying the slurry of step (2) to evaporate the slurrying agent and to produce solid particles of the carboxylated dihydrocarbyloxide magnesium compound incorporating the filler; and, optionally, (4) heating the solid particles to remove carbon dioxide to produce a shape-shifted dihydrocarbyloxide magnesium compound component. A catalyst system using the component and a polymerization process employing the catalyst system are also provided.

    摘要翻译: 提供了一种制备形状转移催化剂组分的方法,其包括(1)在淤浆剂存在下使二氢氧化镁镁化合物与二氧化碳接触以形成羧基化二氢氧化镁镁化合物的浆料; (2)在步骤(1)的羧化之前或之后向浆料中加入填料; (3)喷雾干燥步骤(2)的浆料以蒸发制浆剂并产生掺入填料的羧化二氢氧化镁镁化合物的固体颗粒; 和(4)加热固体颗粒以除去二氧化碳以产生形状转移的二氢氧化镁化合物组分。 还提供了使用该组分的催化剂体系和采用催化剂体系的聚合方法。