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    PROCESS FOR THE PREPARATION OF POLYPROPYLENE WITH IMPROVED PRODUCTIVITY
    21.
    发明申请
    PROCESS FOR THE PREPARATION OF POLYPROPYLENE WITH IMPROVED PRODUCTIVITY 有权
    制备具有改善生产力的聚丙烯的方法

    公开(公告)号：US20150191556A1

    公开(公告)日：2015-07-09

    申请号：US14418808

    申请日：2013-07-30

    Applicant: BOREALIS AG

    Inventor： Wolfgang Neissl ,  Dietrich Gloger ,  Thomas Horill ,  Martina Sandholzer ,  Gregory Potter

    IPC: C08F10/06

    CPC classification number: C08F10/06 ,  C08F2/001 ,  C08F210/06 ,  C08F4/6543 ,  C08F210/16 ,  C08F2500/12 ,  C08F2500/15 ,  C08F4/6492

    Abstract: A process for the preparation of a polypropylene in a sequential polymerization process including a pre-polymerization reactor and at least two polymerization reactors connected in series. The polymerization in the at least two polymerization reactors takes place in the presence of a Ziegler-Natta catalyst. The Ziegler-Natta catalyst includes (a) a pro-catalyst that has a compound of a transition metal, a compound of a metal which metal is selected from one of the groups 1 to 3 of the periodic table (IUPAC), and an internal electron donor, (b) a co-catalyst, and (c) an external donor. The Ziegler-Natta catalyst is present in the pre-polymerization reactor. Ethylene and propylene are fed to the pre-polymerization reactor in a feed rate ratio of 0.5 to 10.0 g/kg.

    Abstract translation: 一种在顺序聚合方法中制备聚丙烯的方法，包括预聚合反应器和至少两个串联的聚合反应器。 在至少两个聚合反应器中的聚合在齐格勒 - 纳塔催化剂存在下进行。 齐格勒 - 纳塔催化剂包括（a）具有过渡金属化合物的前催化剂，金属选自元素周期表第1至3族之一的金属化合物（IUPAC）和内部 电子给体，（b）助催化剂，和（c）外部供体。 齐格勒 - 纳塔催化剂存在于预聚合反应器中。 乙烯和丙烯以0.5至10.0g / kg的进料速率比进料到预聚合反应器中。

    Nucleated propylene polymer composition with high toughness
    22.
    发明授权
    Nucleated propylene polymer composition with high toughness 有权

    公开(公告)号：US12209148B2

    公开(公告)日：2025-01-28

    申请号：US17429230

    申请日：2020-01-20

    Applicant: BOREALIS AG

    Inventor： Markus Gahleitner ,  Jingbo Wang ,  Dietrich Gloger ,  Klaus Bernreitner

    IPC: C08F110/06 ,  B29B9/06 ,  C08F4/6592 ,  C08K5/00 ,  C08K5/098 ,  C08K5/3465 ,  C08L23/12

    Abstract: The present invention is directed to a propylene polymer composition comprising (a) at least 90 wt. %, based on the weight of the total propylene homopolymer composition, of a propylene homopolymer having (i) a pentad isotacticity (mmmm) of equal or more than 98.0 mol.-%, determined by quantitative 13C NMR spectroscopy, (ii) a relative amount of erythro regio-defects of not more than 0.2 mol.-%, determined by quantitative 13C NMR spectroscopy, as described herein, and (b) a nucleating agent (B) selective for the beta-modification of isotactic polypropylene in an amount of from 0.001 to 1.0 wt. %, based on the weight of the total propylene homopolymer composition, wherein said propylene homopolymer composition has a melt flow rate MFR2 (230° C., 2.16 kg) according to ISO 1133 of 0.1 to 10 g/10 min., a beta-phase content of not less than 80%, measured by wide angle x-ray scattering (WAXS). Further disclosed is a moulded propylene homopolymer product obtainable by compression moulding or extrusion of the propylene homopolymer composition.

    Polypropylene film structure having increased life time
    23.
    发明授权
    Polypropylene film structure having increased life time 有权

    公开(公告)号：US11591444B2

    公开(公告)日：2023-02-28

    申请号：US16340219

    申请日：2017-10-24

    Applicant: Borealis AG

    Inventor： Franciscus Jacobs ,  Guido Boelaers ,  Dietrich Gloger ,  Helmut Rinnerthaler

    IPC: C08J5/18 ,  B32B15/085 ,  B32B15/20 ,  H01G4/04 ,  H01G4/18 ,  H01G4/32 ,  H01B3/22 ,  H01B3/44 ,  B32B37/20

    Abstract: The present invention refers to a structure comprising a biaxially oriented polypropylene (BOPP) film having at least one layer comprising a homopolymer of propylene which layer is in contact with an oil phase, the homopolymer of propylene has a) a content of isotactic pentads in the range from 95% to 98%, and b) a content of ash of not more than 30 ppm, based on the total weight of the homopolymer of propylene, characterized in that the oil phase has an absorbance value of ≤0.1, relative to the pure oil, as determined spectrophotometrically at a wavelength of 860 nm by the reduction of transmitted light intensity. The present invention further refers to the use of a biaxially oriented polypropylene (BOPP) film for making capacitors comprising said structure, wherein the oil phase has an absorbance value of ≤0.1, relative to the pure oil, as determined spectrophotometrically at a wavelength of 860 nm by the reduction of transmitted light intensity as well as the use of the homopolymer of propylene for increasing the life time of a capacitor.

    POLYPROPYLENE FILM STRUCTURE HAVING INCREASED LIFE TIME
    25.
    发明申请
    POLYPROPYLENE FILM STRUCTURE HAVING INCREASED LIFE TIME 审中-公开

    公开(公告)号：US20200040150A1

    公开(公告)日：2020-02-06

    申请号：US16340219

    申请日：2017-10-24

    Applicant: Borealis AG

    Inventor： Franciscus Jacobs ,  Guido Boelaers ,  Dietrich Gloger ,  Helmut Rinnerthaler

    IPC: C08J5/18 ,  B32B15/085 ,  B32B15/20 ,  B32B37/20 ,  H01G4/18 ,  H01G4/04 ,  H01G4/32

    Abstract: The present invention refers to a structure comprising a biaxially oriented polypropylene (BOPP) film having at least one layer comprising a homopolymer of propylene which layer is in contact with an oil phase, the homopolymer of propylene has a) a content of isotactic pentads in the range from 95% to 98%, and b) a content of ash of not more than 30 ppm, based on the total weight of the homopolymer of propylene, characterized in that the oil phase has an absorbance value of ≤0.1, relative to the pure oil, as determined spectrophotometrically at a wavelength of 860 nm by the reduction of transmitted light intensity. The present invention further refers to the use of a biaxially oriented polypropylene (BOPP) film for making capacitors comprising said structure, wherein the oil phase has an absorbance value of ≤0.1, relative to the pure oil, as determined spectrophotometrically at a wavelength of 860 nm by the reduction of transmitted light intensity as well as the use of the homopolymer of propylene for increasing the life time of a capacitor.

    HIGH FLOW POLYPROPYLENE WITH EXCELLENT MECHANICAL PROPERTIES
    28.
    发明申请
    HIGH FLOW POLYPROPYLENE WITH EXCELLENT MECHANICAL PROPERTIES 审中-公开
    具有优异机械性能的高流动性聚丙烯

    公开(公告)号：US20150099842A1

    公开(公告)日：2015-04-09

    申请号：US14400159

    申请日：2013-05-17

    Applicant: Borealis AG

    Inventor： Markus Gahleitner ,  Dietrich Gloger ,  Petar Doshev ,  Cornelia Tranninger

    IPC: C08L23/14

    CPC classification number: C08L23/14 ,  C08K3/36 ,  C08L23/06 ,  C08L23/12 ,  C08L23/16 ,  C08L2205/02 ,  C08L2205/025 ,  C08L2207/02 ,  C08L2207/062 ,  C08L2308/00 ,  C08L2314/02

    Abstract: Polymer composition of a propylene copolymer and a high density polyethylene, wherein said composition has a MFR2 of at least 25.0 g/10 min and said propylene copolymer has a xylene cold soluble content in the range of 7.0 to below 20.0 wt.-%; a comonomer content in the range of 3.0 to 12.0 wt.-%; a shear thinning index (SHI 0/50) of at least 7.5; wherein further the xylene cold soluble fraction of the propylene copolymer has a comonomer content in the range of 25.0 to 45.0 wt.-%.

    Abstract translation: 丙烯共聚物和高密度聚乙烯的聚合物组合物，其中所述组合物具有至少25.0g / 10min的MFR 2，所述丙烯共聚物的二甲苯冷可溶物含量在7.0至20.0重量％范围内; 3.0〜12.0重量％范围内的共聚单体含量; 剪切稀化指数（SHI 0/50）至少为7.5; 其中进一步的丙烯共聚物的二甲苯冷可溶部分的共聚单体含量在25.0至45.0重量％的范围内。

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