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    Polyolefin compounds for cable coatings
    2.
    发明授权
    Polyolefin compounds for cable coatings 有权

    公开(公告)号：US10538682B2

    公开(公告)日：2020-01-21

    申请号：US16280594

    申请日：2019-02-20

    申请人： Union Carbide Chemicals & Plastics Technology LLC

    发明人： Day-Chyuan Lee

    IPC分类号： C09D123/06 ,  H01B3/44 ,  G02B6/44 ,  G02B6/02

    摘要： Polymeric compositions comprising a blend of high-density polyethylene (“HDPE”) with ethylene vinyl acetate (“EVA”), and optionally with a carbon black and/or one or more other additives, where the polymeric compositions have certain melt-index and vinyl-acetate-content ranges to improve melt strength and processability. Such polymeric compositions can be employed in manufacturing coated conductors, such as fiber optic cables.

    Polymer blend in granular form and process for making same
    3.
    发明授权
    Polymer blend in granular form and process for making same 有权

    公开(公告)号：US10392503B2

    公开(公告)日：2019-08-27

    申请号：US15557839

    申请日：2016-06-07

    申请人： Union Carbide Chemicals & Plastics Technology LLC ,  Rohm and Haas Company

    发明人： Scott Backer ,  Eric P. Wasserman ,  Severine Ferrieux

    IPC分类号： C11D1/00 ,  C11D3/37 ,  C08L33/02 ,  C08L33/10 ,  C08J3/00 ,  C08J3/12 ,  C08L33/26 ,  C08F220/06

    摘要： Provided is a polymer blend in granular form and a process for making the blend. The blend is suitable for use as an additive in a variety of applications, such as in detergent formulations. The blend comprises: (i) one or more first polymers each independently having a weight-average molecular weight of 35,000 to 100,000 g/mol and each independently comprising polymerized units of (a) 22 to 80 wt % of one or more monoethylenically unsaturated C3-C6 carboxylic acid monomers, and (b) 20 to 78 wt % of one or more C1-C12 alkyl (meth)acrylate monomers; and (ii) one or more second polymers each independently having a weight-average molecular weight of 1,000 to 45,000 g/mol and each independently comprising polymerized units of 50 to 100 wt % of one or more monoethylenically unsaturated C3-C6 carboxylic acid monomers, wherein component (i) comprises from 1 wt % to 50 wt % based on the total weight of (i) and (ii), wherein the polymer blend is in granular form, and wherein one or more polymers of the polymer blend is at least partially neutralized.

    ZIEGLER-NATTA CATALYST COMPOSITIONS FOR PRODUCING POLYETHYLENES WITH A HIGH MOLECULAR WEIGHT TAIL AND METHODS OF MAKING THE SAME
    9.
    发明申请
    ZIEGLER-NATTA CATALYST COMPOSITIONS FOR PRODUCING POLYETHYLENES WITH A HIGH MOLECULAR WEIGHT TAIL AND METHODS OF MAKING THE SAME 审中-公开
    用于生产具有高分子量尾的聚乙烯的ZIEGLER-NATTA催化剂组合物及其制备方法

    公开(公告)号：US20150183906A1

    公开(公告)日：2015-07-02

    申请号：US14657841

    申请日：2015-03-13

    申请人： Union Carbide Chemicals & Plastics Technology LLC

    发明人： Burkhard E. Wagner ,  Robert C. Job ,  Ann M. Schoeb-Wolters ,  Robert J. Jorgensen

    IPC分类号： C08F210/16

    摘要： Methods of preparing a polymerization catalyst component is provided, in which a magnesium component, a Lewis acid solubilizing component, a titanium compound, optionally a transition metal compound different than the titanium compound, and typically an inert filler are combined in a slurrying agent and spray-dried to produce a catalyst precursor in the form of a substantially spherical and porous solid particle. The methods and catalysts of this disclosure can provide ethylene homopolymer and copolymer resins having a high molecular weight tail and a broadened molecular weight distribution as compared to more traditional Ziegler-Natta catalysts.

    摘要翻译： 提供制备聚合催化剂组分的方法，其中将镁组分，路易斯酸增溶组分，钛化合物，任选的不同于钛化合物的过渡金属化合物，通常为惰性填料组合在制浆剂和喷雾中 干燥以产生呈基本球形和多孔固体颗粒形式的催化剂前体。 与更传统的齐格勒 - 纳塔催化剂相比，本公开的方法和催化剂可以提供具有高分子量尾部和扩展的分子量分布的乙烯均聚物和共聚物树脂。