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    MULTINUCLEAR METALLOCENE CATALYST COMPLEXES FOR OLEFIN POLYMERISATION AND COPOLYMERISATION AND METHOD OF PREPARING THEREOF
    8.
    发明申请
    MULTINUCLEAR METALLOCENE CATALYST COMPLEXES FOR OLEFIN POLYMERISATION AND COPOLYMERISATION AND METHOD OF PREPARING THEREOF 审中-公开

    公开(公告)号：US20140024790A1

    公开(公告)日：2014-01-23

    申请号：US14002910

    申请日：2012-02-14

    申请人： Haif Al-Shammari ,  Helmut Alt

    发明人： Haif Al-Shammari ,  Helmut Alt

    IPC分类号： C08F110/02

    CPC分类号： C07F17/00 ,  B01J31/143 ,  B01J31/1805 ,  B01J31/2295 ,  B01J2531/0205 ,  B01J2531/35 ,  B01J2531/36 ,  B01J2531/37 ,  B01J2531/38 ,  B01J2531/46 ,  B01J2531/48 ,  B01J2531/49 ,  B01J2531/56 ,  B01J2531/57 ,  B01J2531/58 ,  C08F4/62013 ,  C08F4/6423 ,  C08F4/65912 ,  C08F4/6592 ,  C08F110/02 ,  C08F2410/03 ,  C08F4/64013 ,  C08F2500/04

    摘要： The invention relates to a multinuclear metallocene catalyst of general formula (1); wherein Y and Y′ are the same or different and independently selected from a C1-20 linear hydrocarbyl group; C1-20 branched hydrocarbyl group; C1-20 cyclic hydrocarbyl group; a C1-30 aryl group and a C1-30 substituted aryl group; L and L′ are the same or different and each is an electron-donating group independently selected from the elements of Group 15 of the Periodic Table; Q and Q′ are the same or different and independently selected from hydrogen, a C1-30 alkyl group and a C1-30 aryl group; M″ is a metal selected from Group 3, 4, 5, 6, 7, 8, 9 and 10 elements and from lanthanide series elements of the Periodic Table; Z is selected from the group consisting of hydrogen; a halogen element; a C1-20 hydrocarbyl group; C1-20 alkoxy group and a C1-20 aryloxy group; B and B′ are the same or different and each is a half sandwich metallocene compound, with B being represented by Formula 2 and B′ being represented by Formula 3: W-M-Xx (Formula 2), W′-M′-X′x′, (Formula 3) wherein: W and W′ are the same or different and independently a ligand compound having a cyclo pentadienyl skeleton selected from the group consisting of cyclopentadienyl, substituted cyclopentadienyl, indenyl, substituted indenyl, fluorenyl and substituted fluorenyl; M and M′ are the same and each is independently selected from the group consisting of scandium; yttrium; lanthanoid series elements; titanium; zirconium; hafnium; vanadium; niobium; and tantalum; X and X′ are the same or different and each is selected from the group consisting of hydrogen; a halogen element; a C 1-20 hydrocarbyl group, C1-20 alkoxy group; and C1-20 aryloxy group; x and x′ are independently integers from 0 to 3; z is an integer from 1 to 5; n, n′ are independently 0 or 1, with 1≦(n+n′)≦2. The invention further relates to a method to prepare said multinuclear metallocene catalyst compound. The invention further relates to a catalyst system and to a process for the polymerisation of olefins.

    Multi-stage process for producing multi-modal linear low density polyethylene
    9.
    发明授权
    Multi-stage process for producing multi-modal linear low density polyethylene 有权
    生产多模式线性低密度聚乙烯的多阶段工艺

    公开(公告)号：US08409681B2

    公开(公告)日：2013-04-02

    申请号：US13126496

    申请日：2010-02-22

    申请人： Thomas Garoff ,  Paivi Waldvogel ,  Kalle Kallio ,  Virginie Eriksson ,  Aki Aittola ,  Esa Kokko

    发明人： Thomas Garoff ,  Paivi Waldvogel ,  Kalle Kallio ,  Virginie Eriksson ,  Aki Aittola ,  Esa Kokko

    IPC分类号： B32B1/08 ,  C08F2/14 ,  C08F2/34 ,  C08F210/14 ,  C08F4/685

    CPC分类号： C08F10/00 ,  C08F110/02 ,  C08F210/16 ,  C08F2410/03 ,  Y10T428/139 ,  C08F4/6357 ,  C08F4/685 ,  C08F2/001 ,  C08F2500/07 ,  C08F2500/12 ,  C08F2500/05 ,  C08F2500/18 ,  C08F210/14 ,  C08F2500/08

    摘要： A process is disclosed for producing a multi-modal linear low density polyethylene in at least two staged reactors connected in series, comprising (i) polymerizing in a first slurry phase stage ethylene monomers with a Ziegler-Natta polymerization catalyst system to obtain a first polyethylene fraction component (A); and (ii) polymerizing in a second gas or slurry phase stage ethylene monomers with a Ziegler-Natta polymerization catalyst system to obtain a second polyethylene fraction component (B). The Ziegler-Natta polymerization catalyst system comprises: 1) a solid procatalyst formed by contacting at least: a) a Mg-alcoholate complex of formula (I) b) an aluminum compound of formula (II); and c) a vanadium compound and a titanium compound having a molar ratio (V:Ti) from 10:90 to 90:10; and 2) one or more organometallic cocatalvsts of formula (III). The linear low density polyethylene shows an improved comonomer composition distribution Formulas (I), (II), and (III) are described herein.

    摘要翻译： 公开了一种用于在至少两个分级反应器中串联生产多模式线性低密度聚乙烯的方法，其包括（i）在第一浆液阶段中聚合乙烯单体与齐格勒 - 纳塔聚合催化剂体系以获得第一聚乙烯 级分组分（A）; 和（ii）在齐格勒 - 纳塔聚合催化剂体系中在第二气体或浆料相阶段中聚合乙烯单体以获得第二聚乙烯级分组分（B）。 齐格勒 - 纳塔聚合催化剂体系包括：1）通过使至少a）使式（I）的Mg-醇合物络合物b）式（II）的铝化合物与式 和c）钒化合物和摩尔比（V:Ti）为10:90至90:10的钛化合物; 和2）式（III）的一种或多种有机金属助催化剂。 线性低密度聚乙烯显示改进的共聚单体组成分布本文描述了式（I），（II）和（III）。