Cyclic Olefin Copolymers and Films Prepared Therefrom

    公开(公告)号:US20200172645A1

    公开(公告)日:2020-06-04

    申请号:US16692804

    申请日:2019-11-22

    Abstract: The present disclosure provides copolymers comprising from about 0.5 wt % to about 25 wt % cyclic olefin content and films comprising the copolymers. In one embodiment, a copolymer includes a C2-C40 monomer content of from about 75 wt % to about 99.5 wt %; and a C5-C40 cyclic olefin comonomer content of from about 0.5 wt % to about 25 wt %. The copolymer has a density of about 0.91 g/cm3 to about 0.933 g/cm3. Films of the present disclosure can have advantageous mechanical properties (such as melt strength) and optical properties (such as haze %).

    Stable Star-Structured Functional Polyolefins

    公开(公告)号:US20180346736A1

    公开(公告)日:2018-12-06

    申请号:US16058516

    申请日:2018-08-08

    Abstract: Stable star-structured functional polyolefins and methods of making them, the functional polyolefins comprising a polyolefin bound at any position along its chain length to at least one nucleophile-containing silane of the following formula: wherein Y is a di- or trivalent linker group selected from heteroatoms, C1 to C10 alkylenes, and other groups disclosed herein; Nu is a nucleophilic atom or unsaturation group; R5 is selected from hydrogen, and C1 to C10 alkyls, and other groups as disclosed herein; X is a divalent group selected from linear and branched alkylenes and heteroatom-alkylenes, and other groups as disclosed herein; and PO is a polyolefin having a weight average molecular weight of at least 400 g/mole; with the proviso that at least one of R1, R2, and R3 is selected from the same or different functional polyolefin moieties. Star-structured functional polyolefins are useful as filler dispersive additives in tire formulations and processing aids.

    Stable Star-Structured Functional Polyolefins
    17.
    发明申请
    Stable Star-Structured Functional Polyolefins 审中-公开
    稳定的星形结构功能聚烯烃

    公开(公告)号:US20160159944A1

    公开(公告)日:2016-06-09

    申请号:US14923002

    申请日:2015-10-26

    Abstract: Stable star-structured functional polyolefins and methods of making them, the functional polyolefins comprising a polyolefin bound at any position along its chain length to at least one nucleophile-containing silane of the following formula: wherein Y is a di- or trivalent linker group selected from heteroatoms, C1 to C10 alkylenes, and other groups disclosed herein; Nu is a nucleophilic atom or unsaturation group; R5 is selected from hydrogen, and C1 to C10 alkyls, and other groups as disclosed herein; X is a divalent group selected from linear and branched alkylenes and heteroatom-alkylenes, and other groups as disclosed herein; and PO is a polyolefin having a weight average molecular weight of at least 400 g/mole; with the proviso that at least one of R1, R2, and R3 is selected from the same or different functional polyolefin moieties. Star-structured functional polyolefins are useful as filler dispersive additives in tire formulations and processing aids.

    Abstract translation: 稳定的星形结构官能聚烯烃及其制备方法,所述功能性聚烯烃包含在其链长上任意位置结合的聚烯烃,至少含有下式的含亲核试剂的硅烷:其中Y是选择的二价或三价连接基团 从杂原子,C1至C10亚烷基和本文公开的其它基团; Nu是亲核原子或不饱和基团; R5选自氢和C1至C10烷基,以及本文公开的其它基团; X是选自直链和支链亚烷基和杂原子 - 亚烷基的二价基团,以及本文公开的其它基团; PO是重均分子量至少为400g / mol的聚烯烃; 条件是R 1,R 2和R 3中的至少一个选自相同或不同的官能聚烯烃部分。 星形结构的功能性聚烯烃可用作轮胎配方和加工助剂中的填料分散添加剂。

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