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    Process for the preparation of polypropylene with improved productivity
    1.
    发明授权
    Process for the preparation of polypropylene with improved productivity 有权
    生产率提高的聚丙烯制备方法

    公开(公告)号：US09512246B2

    公开(公告)日：2016-12-06

    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 ,  C08F210/06 ,  C08F2/00 ,  C08F4/654 ,  C08F2/14

    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。

    PROCESS FOR THE PREPARATION OF POLYPROPYLENE WITH IMPROVED PRODUCTIVITY
    4.
    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：US20150152203A1

    公开(公告)日：2015-06-04

    申请号：US14416121

    申请日：2013-07-30

    Applicant: Borealis AG

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

    IPC: C08F110/06

    CPC classification number: C08F110/06 ,  C08F10/06 ,  C08L23/14 ,  C08L2205/025 ,  C08F210/06 ,  C08F2/001 ,  C08F2500/05 ,  C08F2500/12 ,  C08F2500/17 ,  C08F4/6543 ,  C08F4/6492 ,  C08F210/16 ,  C08L23/12

    Abstract: A process for the preparation of a polypropylene in a sequential polymerization process including at least two polymerization reactors connected in series. The polymerization takes place in the presence of a Ziegler-Natta catalyst, and said 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 ratio of catalyst feed rate to propylene feed rate in the first polymerization reactor is 1.0 to 4.5 q/t.

    Abstract translation: 一种在顺序聚合方法中制备聚丙烯的方法，包括至少两个串联连接的聚合反应器。 聚合在齐格勒 - 纳塔催化剂存在下进行，所述齐格勒 - 纳塔催化剂包括（a）具有过渡金属化合物的前催化剂，金属的化合物，其金属选自 元素周期表（IUPAC）的1至3族，以及内部电子给体，（b）助催化剂和（c）外部给体。 第一聚合反应器中催化剂进料速率与丙烯进料速率的比为1.0-4.5q / t。

    HIGH STIFFNESS POLYPROPYLENE COMPOSITIONS
    9.
    发明申请
    HIGH STIFFNESS POLYPROPYLENE COMPOSITIONS 审中-公开
    高硬度聚丙烯组合物

    公开(公告)号：US20150299442A1

    公开(公告)日：2015-10-22

    申请号：US14437529

    申请日：2014-02-12

    Applicant: Borealis AG

    Inventor： Thomas Horill ,  Petar Doshev ,  Tua Sundholm ,  Martina Sandholzer ,  Klaus Bernreitner

    IPC: C08L23/12 ,  C08L15/00

    CPC classification number: C08L23/12 ,  C08K3/013 ,  C08K5/0083 ,  C08L15/00 ,  C08L23/16 ,  C08L2203/18 ,  C08L2205/02 ,  C08L2205/24 ,  C08L2207/02 ,  C08L2314/02 ,  F16L9/127 ,  C08F210/06 ,  C08F2/001 ,  C08F210/16 ,  C08F2500/12 ,  C08F2500/17

    Abstract: Heterophasic polypropylene composition comprising a propylene homo- or random copolymer matrix phase (A), and an ethylene-propylene copolymer rubber phase (B) dispersed within the matrix phase, the heterophasic polypropylene composition including a fraction soluble in pxylene at 25° C. (XCS fraction) which is present in the resin in an amount of 4 to 14 wt.-%, and a fraction insoluble in p-xylene at 25° C. (XCU fraction) which is present in the resin in an amount of 86 to 96 wt.-%, wherein the heterophasic polypropylene composition has an MFR2, determined according to ISO 1133 at 230° C. and under a load of 2.16 kg, of 4.0 to 8.0 g/10 min; and wherein the heterophasic polypropylene composition has a flexural modulus higher than 1500 MPa measured on an injection moulded specimen with the dimension 80×10×4 mm3 according to ISO 178; and wherein the heterophasic polypropylene composition has a content of monomer units derived from ethylene of 2.0 to 7.0 wt.-%.

    Abstract translation: 包含分散在基质相中的丙烯均相或无规共聚物基质相（A）和乙烯 - 丙烯共聚物橡胶相（B）的多相聚丙烯组合物，所述多相聚丙烯组合物包含在25℃下可溶于二亚甲基的馏分（ XCS馏分），其存在于树脂中的量为4至14重量％，和在25℃下不溶于对二甲苯的馏分（XCU馏分），其存在于树脂中的量为86至 96重量％，其中所述多相聚丙烯组合物具有根据ISO 1133在230℃和2.16kg的负荷下测定的MFR 2为4.0至8.0g / 10min的MFR 2; 并且其中所述多相聚丙烯组合物在根据ISO 178的尺寸为80×10×4mm 3的注塑试样上具有高于1500MPa的挠曲模量; 并且其中所述多相聚丙烯组合物的衍生自乙烯的单体单元的含量为2.0-7.0重量％。

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