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    NUCLEATED C3C4 COPOLYMERS
    26.
    发明申请
    NUCLEATED C3C4 COPOLYMERS 审中-公开

    公开(公告)号：US20200325303A1

    公开(公告)日：2020-10-15

    申请号：US16753218

    申请日：2018-12-18

    Applicant: Borealis AG

    Inventor： Jingbo Wang ,  Wilfried Töltsch ,  Luigi Maria Resconi ,  Friedrich Berger

    IPC: C08K5/1575

    Abstract: A propylene copolymer composition comprising A) a propylene butylene copolymer which is —free of phthalicacid esters as well as decomposition products thereof; —obtained by a Ziegler-Natta catalyst and B) at least one α-nucleating agent, the propylene copolymer composition having —a MFR (2.16 kg/210° C.) in the range of 2 to 100 g/10 min —a melting point Tm(1) of less than 140° C. —a melting point Tm(2) of at least 150° C., said Tm(2) being associated with more than 75% of the total melting enthalpy and whereby the propylene copolymer —has monomer units derived from a) propylenein an amount of 90.0-98.0 mol.-% b) butylenein an amount of 2.0-10.0 mol.-% with respect to the total weight of the propylene butylene copolymer —an isotacticity mm % as determined by 13C NiNMR spectroscopy of below 99.0%; and —a Koenig-B parameter with respect to butylene as determined by 13C NMR spectroscopy of more than 0.98.

    Polypropylene based composition with improved paint ability
    28.
    发明授权
    Polypropylene based composition with improved paint ability 有权

    公开(公告)号：US11643537B2

    公开(公告)日：2023-05-09

    申请号：US17269217

    申请日：2019-08-23

    Applicant: BOREALIS AG

    Inventor： Jingbo Wang ,  Friedrich Berger ,  Daniela Mileva ,  Georg Grestenberger ,  Markus Gahleitner

    IPC: C08L23/08 ,  C08L23/20 ,  C08L23/12 ,  C08K3/013

    CPC classification number: C08L23/12 ,  C08F2500/34 ,  C08K3/013 ,  C08L23/0815 ,  C08L23/20 ,  C08L2205/035 ,  C08L2207/02 ,  C08L2308/00

    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 terpolymer of propylene with ethylene and 1-butene comonomer units having 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 g/10 min, an article comprising said polypropylene based composition and the use of said terpolymer (B) for reducing the paint adhesion failure of an article comprising said polypropylene based composition.

    Multilayer polyproylene film
    29.
    发明授权
    Multilayer polyproylene film 有权

    公开(公告)号：US11440300B2

    公开(公告)日：2022-09-13

    申请号：US17253872

    申请日：2019-07-22

    Applicant: BOREALIS AG

    Inventor： Markus Gahleitner ,  Jingbo Wang ,  Friedrich Berger ,  Manfred Gruenberger

    IPC: B32B27/08 ,  B32B27/30 ,  B32B27/32 ,  C08F210/06 ,  B29C48/00 ,  B29C48/08 ,  B29C48/21 ,  B29K23/00 ,  B29K105/00

    Abstract: Multilayer film comprising at least a skin layer, a core layer and an inner layer, the skin layer comprising a homo polypropylene or a random propylene ethylene copolymer including up to 2.5 wt.-% units derived from ethylene, the homopolypropylene or the random propylene ethylene copolymer having a MFR2 (ISO1 133, 230° C.) of 2.0 to 20 g/10 min and a melting temperature (Tm) of above 148° C. measured by DSC according to ISO 11357-3:1999 and a scan rate of 10° C./min; the core layer comprising a mixture obtainable by melt blending 20 to 100 wt.-% of a random heterophasic copolymer and 0 to 80 wt.-% of styrene based TPE, whereby the random heterophasic copolymer has a melting temperature (Tm) of 134° C.-148° C. measured by DSC according to ISO 11357-3:1999 and a scan rate of 10° C./min and includes a propylene ethylene copolymer rubber; and whereby the styrene based TPE has a styrene content of from 5 to 20 wt.-%, and the inner layer comprising a random propylene ethylene copolymer having a melting temperature (Tm) from 132° C. to 144° C. measured by DSC according to ISO 11357-3:1999 and a scan rate of 10° C./min, wherein the multilayer film is free of phthalic acid esters as well as decomposition products thereof.

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