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    POLYPROPYLENE COMPOSITION WITH EXCELLENT PAINT ADHESION
    2.
    发明申请
    POLYPROPYLENE COMPOSITION WITH EXCELLENT PAINT ADHESION 审中-公开

    公开(公告)号：WO2018109056A2

    公开(公告)日：2018-06-21

    申请号：PCT/EP2017/082743

    申请日：2017-12-14

    Applicant: BOREALIS AG

    Inventor： KNIESEL, Claudia ,  SHUTOV, Pavel ,  KAHLEN, Susanne ,  MILEVA, Daniela ,  PRADES, Floran

    IPC: C08F2/00 ,  C08L23/12

    Abstract: The invention relates to a polypropylene composition (C) comprising: (i) 62 to 85 wt.-%, based on the total weight of the polypropylene composition (C), of a heterophasic propylene copolymer (HECO1) with a melt flow rate MFR 2 (230 °C) measured according to ISO 1133 in the range of 6.0 to 50.0g/10min; (ii) 10 to 30 wt.-%, based on the total weight of the polypropylene composition (C), of a heterophasic propylene copolymer (HECO2) with a melt flow rate MFR 2 (230 °C) measured according to ISO 1133 in the range of 0.1 to 5.5g/10min; (iii) 5 to 30 wt.-%, based on the total weight of the polypropylene composition (C), of an inorganic filler (F); wherein (a) the xylene cold soluble (XCS) fraction of the heterophasic propylene copolymer (HECO1) has a lower amount [in mol%] of C 2 and/or C 4 to C 12 α-olefin derived comonomer units than the xylene cold soluble (XCS) fraction of the heterophasic propylene copolymer (HECO2); (b) the xylene cold soluble (XCS) fraction of the heterophasic propylene copolymer (HECO1) has a lower the intrinsic viscosity (IV) than the xylene cold soluble (XCS) fraction of the heterophasic propylene copolymer (HECO2); and (c) the xylene cold soluble (XCS) fraction of the heterophasic propylene copolymer (HECO2) has an intrinsic viscosity (IV) in the range of 6.0 to 15.0 dl/g.

    MIXED-PLASTIC POLYETHYLENE BLEND
    7.
    发明申请
    MIXED-PLASTIC POLYETHYLENE BLEND 审中-公开

    公开(公告)号：WO2021064127A1

    公开(公告)日：2021-04-08

    申请号：PCT/EP2020/077569

    申请日：2020-10-01

    Applicant: BOREALIS AG

    Inventor： LIU, Yi ,  KAHLEN, Susanne ,  BRAUN, Hermann

    IPC: C08L23/04

    Abstract: A process for providing a mixed-plastic-polyethylene product blend having a melt flow rate of 0.1 to 0.45 g/10 min (ISO 1133, 2.16 kg load, 190°C), more preferably of from 0.2 to 0.45 g/10 min, from a mixed-plastic-polyethylene primary blend originating from 90 to 100 wt.-% from a waste stream, the process comprising: a) providing a mixed-plastic-polyethylene primary blend originating from 90 to 100 wt.-% from a waste stream having a melt flow rate (ISO 1133, 2.16 kg load, 190°C) of 0.50 to 1.4 g/10min and having a content of units derived from ethylene of 80 to 95 wt.-% as determined by quantitative 13C{1H}-NMR, b) providing a virgin high-density polyethylene (HDPE) having a melt flow rate (ISO 1133, 5.0 kg load, 190°C) within a range of from 0.001 up to 0.50 g/10 min, preferably within a range of from 0.001 up to 0.30 g/10 min, and having a density of from 945 to 958 kg/m³ c) melt compounding the mixed-plastic-polyethylene primary blend with 2.0 to 20 wt.-% of the virgin high-density polyethylene (HDPE) in an extruder with a screw speed of from 100 to 400 rpm and at a barrel temperature set in the range from 150°C to 250°C, thereby yielding the mixed-plastic-polyethylene product blend

    COMPATIBILIZATION OF RECYCLED POLYETHYLENE-POLYPROPYLENE BLENDS
    8.
    发明申请
    COMPATIBILIZATION OF RECYCLED POLYETHYLENE-POLYPROPYLENE BLENDS 审中-公开

    公开(公告)号：WO2020201020A1

    公开(公告)日：2020-10-08

    申请号：PCT/EP2020/058578

    申请日：2020-03-26

    Applicant: BOREALIS AG

    Inventor： KAHLEN, Susanne ,  BRAUN, Hermann ,  LIU, Yi ,  GAHLEITNER, Markus ,  HUBNER, Gerhard

    IPC: C08L23/12

    Abstract: The present invention is directed to a polyethylene-polypropylene composition comprising a blend (A) being a recycled material, said blend comprising polypropylene and polyethylene, and a compatibilizer (B) being a C 2 C 3 C 4 terpolymer. Further, the present invention is directed to an article comprising said polyethylene-polypropylene composition and a process for preparing said polyethylene-polypropylene composition. The present invention is also directed to the use of a compatibilizer (B) being a C 2 C 3 C 4 terpolymer for improving the impact- stiffness balance and the morphology of the blend (A).

    UPGRADED RECYCLED POLYPROPYLENE RICH POLYOLEFIN MATERIAL
    9.
    发明申请
    UPGRADED RECYCLED POLYPROPYLENE RICH POLYOLEFIN MATERIAL 审中-公开

    公开(公告)号：WO2020070176A1

    公开(公告)日：2020-04-09

    申请号：PCT/EP2019/076671

    申请日：2019-10-02

    Applicant: BOREALIS AG

    Inventor： KAHLEN, Susanne ,  JERABEK, Michael

    IPC: C08L23/10

    Abstract: A polypropylene-polyethylene composition obtainable by blending a) 80 to 97 wt.-% of a blend (A) comprising A-1) polypropylene and A-2) polyethylene,wherein the weight ratio of polypropylene to polyethylene is from 9:1 to 13:7, and wherein blend (A) is a recycled material, which is recovered from waste plastic derived from post-consumer and/or post-industrial waste;andb) 3 to 20 wt.-% of a compatibilizer (B) being a heterophasic random copolymer comprising a random polypropylene copolymer matrix phase and an elastomer phase dispersed therein, whereby the heterophasic random copolymer has - a xylene insoluble content XCI of 65 to 88 wt.-% (ISO 16152, 1ed, 25°C), - a xylene soluble content XCS of 12 to 35 wt.-% (ISO 16152, 1ed, 25°C), the XCS fraction having an intrinsic viscosity (measured in decalin according to DIN ISO 1628/1 at 135°C) of 1.2 dl/g to less than 3.0 dl/g, and - a flexural modulus of from 300 to 600 MPa (ISO 178, measured on injection moulded specimens, 23°C); and wherein, the ratio of MFR 2 (blend (A)) / MFR 2 (compatibilizer(B)) (ISO1133, 2.16 kg load), is in the range of from 1.5 to 3.5 g/10 min.

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