Ethylene-Based Polymers and Articles Made Therefrom
    7.
    发明申请
    Ethylene-Based Polymers and Articles Made Therefrom 有权
    乙烯基聚合物及其制品

    公开(公告)号:US20150065656A1

    公开(公告)日:2015-03-05

    申请号:US14329392

    申请日:2014-07-11

    CPC classification number: C08L23/0815 C08L2203/16 C08L23/10 C08L23/16

    Abstract: Polymer compositions that include an ethylene-based polymer and a broad molecular weight distribution propylene-based polymer having a melt strength of 20.0 cN to 200.0 cN; and optionally, a propylene-based elastomer are described. The invention also includes articles, such as films, produced from such compositions and methods of making such compositions and methods of improving melt strength.

    Abstract translation: 包含乙烯基聚合物和熔体强度为20.0cN至200.0cN的宽分子量分布丙烯基聚合物的聚合物组合物; 并且任选地描述了基于丙烯的弹性体。 本发明还包括由这些组合物制备的制品,例如薄膜,以及制备这种组合物的方法和提高熔体强度的方法。

    Modified Polyethylene Compositions for Cast Film
    8.
    发明申请
    Modified Polyethylene Compositions for Cast Film 有权
    改性聚乙烯组合物用于铸膜

    公开(公告)号:US20130209774A1

    公开(公告)日:2013-08-15

    申请号:US13851752

    申请日:2013-03-27

    Abstract: The present invention relates to a cast film comprising a composition comprising more than 25 wt % (based on the weight of the composition) of one or more linear ethylene polymers having a g′vis of 0.97 or more and an Mw of 20,000 g/mol or more and at least 0.1 wt % of a branched modifier where the modifier has a) a g′vis of 0.90 or less; b) an Mw of 100,000 g/mol or more; c) an Mw/Mn of 3.0 or more; d) an Mz/Mn of 7.0 or more; e) a shear thinning ratio of 40 or more; and f) an I21 of 20 dg/min or less; where the film has at least a 10% reduction in neck-in as compared to the same composition formed into a film under the same conditions, except that the branched modifier is absent.

    Abstract translation: 本发明涉及一种包含组合物的流延薄膜,该组合物包含大于25wt%(基于组合物的重量)的一种或多种线性乙烯聚合物,其g'vis为0.97以上,Mw为20,000g / mol 或更多和至少0.1重量%的支化改性剂,其中改性剂具有a)g'vis为0.90以下; b)Mw为100,000g / mol以上; c)Mw / Mn为3.0以上; d)Mz / Mn为7.0以上; e)剪切稀化比为40以上; 和f)20dg / min以下的I21; 除了不存在支化改性剂之外,与相同条件下形成膜的相同组合物相比,膜的颈缩度至少降低10%。

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