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    Nucleated C3C4 copolymers
    111.
    发明授权
    Nucleated C3C4 copolymers 有权

    公开(公告)号：US11236214B2

    公开(公告)日：2022-02-01

    申请号：US16753218

    申请日：2018-12-18

    Applicant: Borealis AG

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

    IPC: C08K5/1575 ,  A61L31/04

    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) propylene in an amount of 90.0-98.0 mol.-% b) butylene in 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 NMR 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.

    POLYOLEFIN COMPOSITION WITH IMPROVED BALANCE OF PROPERTIES
    113.
    发明申请
    POLYOLEFIN COMPOSITION WITH IMPROVED BALANCE OF PROPERTIES 有权

    公开(公告)号：US20210355308A1

    公开(公告)日：2021-11-18

    申请号：US17289585

    申请日：2019-10-24

    Applicant: BOREALIS AG

    Inventor： Jingbo Wang ,  Markus Gahleitner ,  Klaus Bernreitner ,  Yi Liu

    IPC: C08L23/16

    Abstract: The present invention is directed to a polyolefin composition comprising a blend of a heterophasic polypropylene composition and 5.0 to 30.0 wt % of an ethylene homo- or copolymer, the ethylene homo- or copolymer having a density of at least 941 kg/m3 and a melt flow rate MFR21 of 1 to 10 g/10 min. The heterophasic polypropylene composition comprises a propylene homopolymer or a propylene ethylene random copolymer and an elastomeric ethylene propylene rubber, and is characterized by 75.0 to 95.0 wt % of a crystalline fraction having an ethylene content of up to 4.0 wt % and an MFR2 of 0.1 to 100 g/10 min, and 5.0 to 25.0 wt % of a soluble fraction having an ethylene content of 10.0 to 70.0 wt % and an intrinsic viscosity of 1.0 to 4.0 dl/kg, wherein the crystalline fraction and the soluble fraction are determined in 1,2,4-trichlorobenzene at 40° C.

    SINGLE-SITE CATALYST BASED IMPACTED COPOLYMERS WITH EXCELLENT MECHANICAL AND OPTICAL PROPERTIES
    117.
    发明申请
    SINGLE-SITE CATALYST BASED IMPACTED COPOLYMERS WITH EXCELLENT MECHANICAL AND OPTICAL PROPERTIES 有权

    公开(公告)号：US20210054180A1

    公开(公告)日：2021-02-25

    申请号：US16955623

    申请日：2019-01-04

    Applicant: BOREALIS AG

    Inventor： Wilfried Peter Toltsch ,  Jingbo Wang ,  Markus Gahleitner

    IPC: C08L23/14 ,  C08K5/00 ,  C08L23/16 ,  C08L23/12

    Abstract: The present invention relates to a heterophasic propylene polymer (HECO) comprising a) 65 to 90 wt. % of a matrix component (M) selected from a propylene homo- or random copolymer (PP); and b) 10 to 35 wt. % of an ethylene-propylene rubber (EPR), dispersed in the propylene homo- or random copolymer (PP), whereby the xylene cold soluble fraction (XCS) of the heterophasic propylene polymer (HECO) has—an ethylene content of 10.0 to 17.0 wt. %; —an intrinsic viscosity (IV), determined according to ISO 1628-1:2009, of at least 1.6 dl/g; and the xylene cold insoluble fraction (XCI) of the heterophasic propylene polymer (HECO) has 2, 1-erythro regiodefects in an amount of at least 0.4 mol % to a composition comprising the heterophasic propylene polymer (HECO), a process for its preparation and an article comprising the heterophasic propylene polymer (HECO) or the composition comprising the same.

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