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    AUTOMOTIVE COMPOSITION
    152.
    发明公开
    AUTOMOTIVE COMPOSITION 审中-公开

    公开(公告)号：US20230348705A1

    公开(公告)日：2023-11-02

    申请号：US18019862

    申请日：2021-08-11

    Applicant: Borealis AG

    Inventor： Jingbo Wang ,  Markus Gahleitner ,  Klaus Bernreitner ,  Hermann Braun ,  Andreas Rössler-Czermak

    IPC: C08L23/12

    CPC classification number: C08L23/12 ,  C08L2205/025 ,  C08L2205/035

    Abstract: A composition comprising (A) 18.0 to 60.0 wt.-% of a heterophasic composition (HECO); (B) 7.0 to 55.0 wt.-% of a polypropylene-polyethylene blend (B); (C) 0.0 to 12.0 wt.-% of an HDPE; (D) 2.0 to 12.0 wt.-% of plastomer; and (E) 7.0 to 25.0 wt.-% of talc; wherein the HECO has a Tm of 150 to 159° C., an MFR2 of 20.0 to 120 g/10 min, a CRYSTEX QC crystalline fraction of 79.0 to 91.0 wt.-%, a CRYSTEX QC soluble fraction of 9.0 to 21.0 wt.-%, and an ethylene content of 1.5 to 6.5 mol.-%; blend (B) comprises at least 85.0 wt.-% of polypropylene and at most 15.0 wt.-% of polyethylene and has an MFR2 of 5.0 to 75 g/10 min and an ash content of 0.1 to 3.0 wt.-%; and the plastomer is a C2/C8 or a C2/C4 copolymer having a density of 850 to 900 kg/m3.

    Polypropylene-Polyethylene Composition with Improved Toughness
    157.
    发明公开
    Polypropylene-Polyethylene Composition with Improved Toughness 审中-公开

    公开(公告)号：US20230193007A1

    公开(公告)日：2023-06-22

    申请号：US17607627

    申请日：2020-04-28

    Applicant: Borealis AG

    Inventor： Jingbo Wang ,  Markus Gahleitner ,  Klaus Bernreitner ,  Hermann Braun

    IPC: C08L23/14

    CPC classification number: C08L23/142 ,  C08L2207/02 ,  C08L2207/20 ,  C08L2205/035 ,  C08L2207/062

    Abstract: It is provided a polymer composition including at least the following components A) 40 to 94 wt.-% based on the overall weight of the polymer composition of a polymer blend, including a1) 50 to 95 wt.-% of polypropylene; a2) 5 to 50 wt.-% of polyethylene; C) 3 to 30 wt.-% based on the overall weight of the polymer composition of a compatibilizer being a copolymer of propylene and 1-hexene, including b1) 30 to 70 wt.-% of a first random copolymer of propylene and 1-hexene; and b2) 30 to 70 wt.-% of a second random copolymer of propylene and 1-hexene having a higher 1-hexene content than the first random propylene copolymer b1); 3 to 30 wt.-% of a modifier selected from the group consisting of plastomers, heterophasic polypropylene copolymers different from component B) and mixtures thereof; with the provisos that the weight proportions of components a1) and a2) add up to 100 wt.-%; the weight proportions of components b1) and b2) add up to 100 wt.-%; the weight proportions of components A), B) and C) add up to 100 wt.-%; component A) has a MFR2 (230° C., 2.16 kg) determined according to ISO 1133 in the range from 1.0 to 50.0 g/10 min; and component B) has a 1-hexene content in the range from 2.0 to 8.0 wt.-%.

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