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    Tiger stripe modifier
    13.
    发明授权
    Tiger stripe modifier 有权
    虎纹修饰符

    公开(公告)号：US09388304B2

    公开(公告)日：2016-07-12

    申请号：US14443797

    申请日：2013-11-28

    Applicant: Borealis AG

    Inventor： Michael Tranninger ,  Georg Grestenberger ,  Martina Sandholzer ,  Simon Schwarzengerger ,  Susanne Kahlen ,  Gregory Potter

    IPC: C08L23/12 ,  C08L23/16

    CPC classification number: C08L23/12 ,  C08L23/16 ,  C08L2205/02 ,  C08L2207/02 ,  C08L23/14 ,  C08F210/06 ,  C08F210/16 ,  C08F2500/12 ,  C08F2500/17 ,  C08F2500/21 ,  C08F2/001 ,  C08F110/06 ,  C08F4/6545 ,  C08F4/6465 ,  C08F4/6492

    Abstract: Tiger stripe modifier being a heterophasic polypropylene composition having a melt flow rate MFR2 (230° C.) in the range of 0.5 to 20 g/10 min and comprises a propylene homopolymer and an elastomeric propylene copolymer, wherein said propylene homopolymer has a melt flow rate MFR2 (230° C.) in the range of above 10 to 300 g/10 min; the xylene cold soluble fraction of the heterophasic polypropylene composition has an intrinsic viscosity in the range of more than 2.5 to below 11.0 dl/g; and the comonomer content of the xylene cold soluble fraction of the heterophasic polypropylene composition is in the range of 10.0 to 25.0 wt.-%; wherein further the heterophasic polypropylene composition fulfills the inequation (I) 0.3≧(0.241×C)-(1.14×IV) (I) wherein C is the comonomer content of the xylene cold soluble (XCS) fraction of the heterophasic polypropylene composition (HECO1), and IV is the intrinsic viscosity of the xylene cold soluble (XCS) fraction of the heterophasic polypropylene composition (HECO1).

    Abstract translation: 老虎条纹改性剂是熔体流动速率MFR 2（230℃）在0.5-20g / 10min范围内的多相聚丙烯组合物，包含丙烯均聚物和弹性体丙烯共聚物，其中所述丙烯均聚物具有熔体流动 在10至300g / 10min范围内的MFR 2（230℃）的速率; 多相聚丙烯组合物的二甲苯冷可溶部分的特性粘度在大于2.5至低于11.0dl / g的范围内; 并且多相聚丙烯组合物的二甲苯冷可溶部分的共聚单体含量在10.0至25.0重量％的范围内; 其中异相聚丙烯组合物还满足不等式（I）0.3≥（0.241×C） - （1.14×IV）（I）其中C是多相聚丙烯组合物的二甲苯冷可溶（XCS）级分的共聚单体含量（HECO1 ），IV是异相聚丙烯组合物（HECO1）的二甲苯冷可溶（XCS）级分的特性粘度。

    POLYPROPYLENE BASED COMPOSITION WITH IMPROVED PAINTABILITY
    19.
    发明申请
    POLYPROPYLENE BASED COMPOSITION WITH IMPROVED PAINTABILITY 有权

    公开(公告)号：US20210179831A1

    公开(公告)日：2021-06-17

    申请号：US17269208

    申请日：2019-08-23

    Applicant: BOREALIS AG

    Inventor： Jingbo Wang ,  Klaus Bernreitner ,  Daniela Mileva ,  Georg Grestenberger ,  Markus Gahleitner

    IPC: C08L23/14 ,  C08L23/08 ,  C08L23/16 ,  C08K3/34

    Abstract: The present invention relates to a polypropylene based composition comprising: (A) from 40.0 to 85.0 wt % of a heterophasic propylene copolymer having a content of xylene cold soluble (XCS) fraction in the range of 15 wt % to 35 wt %, based on the total weight of the heterophasic propylene copolymer; (B) from 5.0 to 15.0 wt % of a random copolymer of propylene with comonomer units selected from ethylene and alpha-olefins having from 4 to 12 carbon atoms which has been polymerized in the presence of a single-site catalyst system and has a melting temperature Tm as measured in differential scanning calorimetry (DSC) of less than 140° C.; (C) from 5.0 to 25.0 wt % of an ethylene copolymer with alpha-olefin comonomer units having from 4 to 12 carbon atoms with a density of from 850 kg/m3 to 900 kg/m3; and (D) from 5.0 to 25.0 wt % of an inorganic filler, wherein the amounts of components (A), (B), (C), and (D) are all based on the total weight amount of the polypropylene based composition, said polypropylene based composition having a melt flow rate (MFR2) as measured at 230° C. and 2.16 kg load in accordance with ISO 1133 in the range of 2.0 g/10 min to 20.0 g/10 min, an article comprising said polypropylene based composition and the use of said copolymer (B) for reducing the paint adhesion failure of an article comprising said polypropylene based composition.

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