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    BIAXIALLY ORIENTED POLYPROPYLENE FILM WITH IMPROVED BREAKDOWN STRENGTH
    1.
    发明申请
    BIAXIALLY ORIENTED POLYPROPYLENE FILM WITH IMPROVED BREAKDOWN STRENGTH 审中-公开

    公开(公告)号：WO2020127861A1

    公开(公告)日：2020-06-25

    申请号：PCT/EP2019/086504

    申请日：2019-12-20

    Applicant: BOREALIS AG

    Inventor： GLOGER, Dietrich ,  BRAUN, Hermann ,  GITSAS, Antonios ,  TRANCHIDA, Davide ,  JACOBS, Franciscus ,  STADLBAUER, Wolfram

    IPC: C08J5/18 ,  B29C55/12 ,  C08L23/12 ,  H01B3/44 ,  H01G4/18 ,  B29C55/16

    Abstract: The present invention is directed to a biaxially oriented polypropylene (BOPP) film with improved breakdown strength and to a capacitor comprising an insulation film comprising a layer of the biaxially oriented polypropylene film of the present invention. The present invention is further directed to a process for producing a biaxially oriented polypropylene film. Finally, the present invention is further directed to the use of a biaxially oriented polypropylene film of the present invention as layer of an insulation film of a capacitor. The BOPP film comprises a polypropylene composition, wherein the polypropylene composition comprises a high isotactic homopolymer of propylene and a polymeric α-nucleating agent. The BOPP film has a dielectric breakdown field strength Eb63.2 of at least 595 kV/mm. The process for producing a biaxially oriented polypropylene film comprises the steps of extruding a polypropylene composition to a flat film and orienting the flat film simultaneously in the machine direction and in the transverse direction.

    PROCESS FOR THE PREPARATION OF POLYPROPYLENE WITH IMPROVED PRODUCTIVITY
    2.
    发明申请
    PROCESS FOR THE PREPARATION OF POLYPROPYLENE WITH IMPROVED PRODUCTIVITY 审中-公开
    制备具有改善生产力的聚丙烯的方法

    公开(公告)号：WO2014023604A1

    公开(公告)日：2014-02-13

    申请号：PCT/EP2013/065945

    申请日：2013-07-30

    Applicant: BOREALIS AG

    Inventor： NEISSL, Wolfgang ,  GLOGER, Dietrich ,  HORILL, Thomas ,  SANDHOLZER, Martina ,  POTTER, Gregory

    IPC: C08F2/00 ,  C08F4/654 ,  C08F10/06

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

    Abstract: The present invention relates to a process for the preparation of a polypropylene in a sequential polymerization process comprising a pre-polymerization reactor and at least two polymerization reactors connected in series, wherein the polymerization in the at least two polymerization reactors takes place in the presence of a Ziegler-Natta catalyst, and said Ziegler-Natta catalyst comprises: (a) a pro-catalyst comprising (a1) a compound of a transition metal, (a2) a compound of a metal which metal is selected from one of the groups 1 to 3 of the periodic table (IUPAC), (a3) an internal electron donor, (b) a co-catalyst, and (c) an external donor, wherein said Ziegler-Natta catalyst is present in the pre-polymerization reactor and ethylene (C2) in addition to propylene (C3) is fed to said pre-polymerization reactor in a C2/C3 feed ratio of 0.5 to 10.0 g/kg.

    Abstract translation: 本发明涉及一种在顺序聚合方法中制备聚丙烯的方法，其包括预聚合反应器和串联连接的至少两个聚合反应器，其中在至少两个聚合反应器中的聚合在存在 齐格勒 - 纳塔催化剂和所述齐格勒 - 纳塔催化剂包括：（a）催化剂，其包含（a1）过渡金属化合物，（a2）金属化合物，其金属选自组1 至3的周期表（IUPAC），（a3）内电子给体，（b）助催化剂和（c）外部供体，其中所述齐格勒 - 纳塔催化剂存在于预聚合反应器和乙烯 （C2）除了丙烯（C3）以0.5至10.0g / kg的C2 / C3进料比进料到所述预聚合反应器中。

    HIGH FLOW POLYPROPYLENE WITH EXCELLENT MECHANICAL PROPERTIES
    7.
    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：WO2013174733A1

    公开(公告)日：2013-11-28

    申请号：PCT/EP2013/060216

    申请日：2013-05-17

    Applicant: BOREALIS AG

    Inventor： GAHLEITNER, Markus ,  GLOGER, Dietrich ,  DOSHEV, Petar ,  TRANNINGER, Cornelia

    IPC: C08L23/12

    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 MFR 2 of at least 25.0 g/10min 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，其中所述组合物的MFR 2为至少25.0g / 10min，所述丙烯共聚物具有7.0至20.0重量％以下的二甲苯冷可溶物含量; 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。

    POLYPROPYLENE FILM STRUCTURE HAVING INCREASED LIFE TIME
    10.
    发明申请
    POLYPROPYLENE FILM STRUCTURE HAVING INCREASED LIFE TIME 审中-公开
    聚丙烯薄膜结构寿命延长

    公开(公告)号：WO2018077838A1

    公开(公告)日：2018-05-03

    申请号：PCT/EP2017/077094

    申请日：2017-10-24

    Applicant: BOREALIS AG

    Inventor： JACOBS, Franciscus ,  BOELAERS, Guido ,  GLOGER, Dietrich ,  RINNERTHALER, Helmut

    IPC: C08J5/18 ,  H01B3/22 ,  H01B3/44 ,  H01G4/18 ,  H01G4/22 ,  B32B27/32 ,  B29C55/12

    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.

    Abstract translation: 本发明涉及一种包含双轴取向聚丙烯（BOPP）膜的结构，该膜具有至少一个包含丙烯均聚物的层，所述丙烯均聚物层与油相接触，丙烯均聚物具有 ）全同立构五单元组的含量为95％至98％，和b）基于丙烯均聚物的总重量计，不超过30ppm的灰分含量，其特征在于油相具有吸光度 通过透射光强度的降低以分光光度法在860nm的波长下测定，相对于纯油的≤0.1的值。 本发明进一步涉及双轴取向聚丙烯（BOPP）薄膜用于制造包含所述结构的电容器的用途，其中相对于纯油，油相的吸光度值≤0.1，如分光光度法在波长860 通过降低透射光强度以及使用丙烯均聚物来延长电容器的使用寿命。

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