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    THERMOPLASTIC POLYOLEFINS WITH HIGH FLOWABILITY AND EXCELLENT SURFACE QUALITY PRODUCED BY A MULTISTAGE PROCESS
    144.
    发明申请
    THERMOPLASTIC POLYOLEFINS WITH HIGH FLOWABILITY AND EXCELLENT SURFACE QUALITY PRODUCED BY A MULTISTAGE PROCESS 审中-公开
    具有高流动性和优异表面质量的热塑性聚烯烃由多种工艺生产

    公开(公告)号：US20140045994A1

    公开(公告)日：2014-02-13

    申请号：US14057818

    申请日：2013-10-18

    Applicant: Borealis AG

    Inventor： Christelle Grein ,  Klaus Bernreitner

    IPC: C08L23/12

    CPC classification number: C08L23/12 ,  C08F110/02 ,  C08F210/06 ,  C08F210/16 ,  C08F297/08 ,  C08F297/083 ,  C08L23/10 ,  C08L23/16 ,  C08L2205/02 ,  Y02P20/52 ,  C08F2/001 ,  C08F4/6465 ,  C08L2666/06 ,  C08L2666/02 ,  C08F2500/12 ,  C08F2500/17 ,  C08F2500/21

    Abstract: Reactor grade thermoplastic polyolefins with high flowability and excellent surface quality comprising (A) 40-90 wt % of a propylene homo- or copolymer matrix with an MFR in accordance with ISO 1 133 (230° C., 2.16 kg load) of ≧200 g/10 min and (B) 2-30 wt % of an elastomeric ethylene-propylene copolymer having an intrinsic viscosity IV (according to ISO 1628 with decalin as solvent) of ≦2.8 dl/g and an ethylene content of >50 to 80 wt % and (C) 8-30 wt % of an elastomeric ethylene-propylene copolymer having an intrinsic viscosity IV (according to ISO 1628 with decalin as solvent) of 3.0-6.5 dl/g and an propylene content of 50 to 80 wt %, the reactor grade thermoplastic polyolefins being obtainable by a multistage polymerization process with at least 3 polymerization steps in the presence of a catalyst system comprising (i) a Ziegler-Natta procatalyst which contains a trans-esterification product of a lower alcohol and a phthalic ester and (ii) an organometallic cocatalyst and (iii) external donor represented by formula (I) Si(OCH2CH3)3(NR1R2) wherein R1 and R2 can be the same or different a represent a hydro-carbon group having 1 to 12 carbon atoms, as well as the use of these reactor grade thermoplastic polyolefins and molded articles produced from them.

    Abstract translation: 具有高流动性和优异表面质量的反应器级热塑性聚烯烃，其包含（A）40-90重量％的丙烯均聚物或共聚物基体，其具有符合ISO 1 133（230℃，2.16kg负荷）的MFR = 200g / 10分钟，和（B）2-30重量％的特性粘度IV（根据ISO 1628和十氢化萘作为溶剂）的弹性体乙烯 - 丙烯共聚物为2.8dl / g，乙烯含量> 50〜 80重量％和（C）8-30重量％的具有3.0-6.5dl / g的特性粘度IV（根据ISO 1628和十氢化萘作为溶剂）的弹性体乙烯 - 丙烯共聚物，丙烯含量为50-80重量％ ％，反应器级热塑性聚烯烃可以通过多级聚合方法获得，在催化剂体系存在下至少具有3个聚合步骤，包括（i）齐格勒 - 纳塔前催化剂，其含有低级醇和邻苯二甲酸的酯交换反应产物 酯和（ii）有机金属助催化剂和（iii） 由式（I）Si（OCH 2 CH 3）3（NR 1 R 2）表示的外部供体，其中R 1和R 2可以相同或不同，a表示具有1至12个碳原子的烃基，以及这些反应器级热塑性塑料 聚烯烃和由它们生产的模塑制品。

    Nucleated propylene polymer composition with high toughness
    145.
    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.

    HIGH MELT FLOW POLYPROPYLENE COMPOSITION
    146.
    发明申请
    HIGH MELT FLOW POLYPROPYLENE COMPOSITION 有权

    公开(公告)号：US20250026872A1

    公开(公告)日：2025-01-23

    申请号：US18713236

    申请日：2022-11-29

    Applicant: Borealis AG

    Inventor： Jingbo Wang ,  Markus Gahleitner ,  Klaus Bernreitner ,  Karlheinz Friedrich ,  Claudia Kniesel ,  Mahdi Abbasi

    IPC: C08F210/06 ,  C08F2/01 ,  C08F4/659 ,  C08F4/6592

    Abstract: The present invention relates to a polypropylene composition comprising a crystalline fraction (CF) and a soluble fraction (SF), both determined according to CRYSTEX QC analysis, whereby said soluble fraction (SF)—is present in the polypropylene composition in an amount in the range of 10.0 to 35.0 wt.-%, preferably in the range of 11.0 to 32.5 wt.-%, more preferably in the range of 12.0 to 30.0 wt.-%, based on the total weight of the polypropylene composition, —has an intrinsic viscosity (iV(SF)) of at least 2.0 dl/g, preferably in the range of 2.3 to 4.5 dl/g, more preferably in the range of 2.5 to 4.3 dl/g, and—has an ethylene content (C2(SF)) in the range of 14.0 to 29.0 wt.-%, preferably in the range of 17.0 to 26.0 wt.-%, more preferably in the range of 19.0 to 24.0 wt.-%, based on the total weight of the soluble fraction (SF), as determined by FT-IR spectroscopy calibrated by quantitative 13C-NMR spectroscopy; wherein the ratio of the intrinsic viscosity of the soluble fraction to the intrinsic viscosity of the crystalline fraction (iV(SF)/(iV(CF)) is in the range of 2.5 to 5.0, preferably in the range of 2.6 to 4.8; and wherein the polypropylene composition has a melt flow rate MFR2 (230° C., 2.16 kg, ISO 1133) in the range of 105 to 320 g/10 min, preferably in the range of 107 to 300 g/10 min, more preferably in the range of 110 to 280 g/10 min; a process for producing said polypropylene composition; an article comprising said polypropylene composition; and the use of said polypropylene composition for the production of an article.

    Polypropylene-polyethylene composition with improved toughness
    148.
    发明授权
    Polypropylene-polyethylene composition with improved toughness 有权

    公开(公告)号：US12173143B2

    公开(公告)日：2024-12-24

    申请号：US17607627

    申请日：2020-04-28

    Applicant: Borealis AG

    Inventor： Jingbo Wang ,  Markus Gahleitner ,  Klaus Bernreitner ,  Hermann Braun

    IPC: C08L23/00 ,  C08L23/14

    Abstract: It is provided a polymer composition including at least the following components A) 40 to 94 wt.-% based on the overall weight of the polymer composition of a polymer blend, including a1) 50 to 95 wt.-% of polypropylene; a2) 5 to 50 wt.-% of polyethylene; C) 3 to 30 wt.-% based on the overall weight of the polymer composition of a compatibilizer being a copolymer of propylene and 1-hexene, including b1) 30 to 70 wt.-% of a first random copolymer of propylene and 1-hexene; and b2) 30 to 70 wt.-% of a second random copolymer of propylene and 1-hexene having a higher 1-hexene content than the first random propylene copolymer b1); 3 to 30 wt.-% of a modifier selected from the group consisting of plastomers, heterophasic polypropylene copolymers different from component B) and mixtures thereof; with the provisos that the weight proportions of components a1) and a2) add up to 100 wt.-%; the weight proportions of components b1) and b2) add up to 100 wt.-%; the weight proportions of components A), B) and C) add up to 100 wt.-%; component A) has a MFR2 (230° C., 2.16 kg) determined according to ISO 1133 in the range from 1.0 to 50.0 g/10 min; and component B) has a 1-hexene content in the range from 2.0 to 8.0 wt.-%.

    Polypropylene pipe composition
    150.
    发明授权
    Polypropylene pipe composition 有权

    公开(公告)号：US12134688B2

    公开(公告)日：2024-11-05

    申请号：US17050048

    申请日：2019-05-07

    Applicant: BOREALIS AG

    Inventor： Pauli Leskinen ,  Jingbo Wang ,  Markus Gahleitner ,  Klaus Bernreitner

    IPC: C08L23/14 ,  B01J8/24 ,  B01J19/18 ,  C08F2/01 ,  C08F2/34 ,  C08F4/6592 ,  C08L23/20

    Abstract: Polypropylene composition having a melting temperature Tm of 135° C. to 140° C. (DSC according to ISO 11357/part 3), —an MFR2 of 0.05 to 0.50 g/10 min (2.16 kg, 230° C., IS01133), a XS according to IS016152 of 0.2 to 2.5 wt.-%, and a molecular weight distribution Mw/Mn of at least 2.8 and less than 6.0, wherein Mn is the number average molecular weight and Mw is the weight average molecular weight both being determined by Gel Permeation Chromatography (GPC) according to ISO 16014-4:2003, and ASTM D 6474-99, whereby the polypropylene composition comprises units derived from 1-hexene in an amount of 1.80 wt.-% to 5.0 wt.-%.

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