Polymer composition
    7.
    发明授权
    Polymer composition 有权
    聚合物组成

    公开(公告)号:US08426521B2

    公开(公告)日:2013-04-23

    申请号:US13186932

    申请日:2011-07-20

    IPC分类号: C08F8/00 C08L23/10 C08L23/04

    摘要: Disclosed herein is a composition substantially free of polyethylene, wherein the composition includes a thermoplastic material having certain specified mechanical properties, and about 2 wt. % to about 25 wt. % (based on the total weight of the composition) of an olefin mixture that consists essentially of a 30:70 to 70:30 weight ratio of a homogeneous ethylene-alpha olefin interpolymer and a propylene-based elastomer having at least 75 wt. % units derived from propylene and about 10 wt. % to about 25 wt. % units derived from a C2 or a C4-10 alpha olefin. The specified olefin mixture unexpectedly imparts to the overall composition mechanical properties (such as impact strength, for example) heretofore unattainable. These mechanical properties can be expected to be tailored to suit the end-use expected of the composition.

    摘要翻译: 本文公开了基本上不含聚乙烯的组合物,其中所述组合物包括具有某些特定机械性能的热塑性材料,和约2重量% %至约25wt。 %(基于组合物的总重量)烯烃混合物,其基本上由30:70至70:30重量比的均相乙烯-α-烯烃互聚物和基于丙烯的弹性体组成,其具有至少75wt。 衍生自丙烯的%单元和约10重量% %至约25wt。 衍生自C2或C4-10α烯烃的%单元。 特定的烯烃混合物意外地赋予了迄今无法实现的机械性能(例如冲击强度)的总体组成。 这些机械性能可以被预期地定制成适合组合物预期的最终用途。