POLYPROPYLENE COMPOSITIONS
    200.
    发明申请

    公开(公告)号:US20170198125A1

    公开(公告)日:2017-07-13

    申请号:US15321321

    申请日:2015-06-08

    Abstract: The present disclosure generally relates to a heterophasic polypropylene composition comprising 68-76% by weight of a propylene homopolymer or copolymer matrix, 24-32% by weight of an ethylene-propylene copolymer, and a nucleating agent. In some embodiments, the composition has an intrinsic viscosity of the xylene soluble (XSIV) fraction at room temperature of up to 1.3 dl/g and a melt flow rate (230° C., 2.16 kg) of 30 to 70 g/10 min. The compositions disclosed herein can be used in molded articles, using techniques such as thin wall injection molding, that are endowed with excellent impact behavior.

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