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    Olefin polymerization catalyst component, its preparation and use
    9.
    发明授权
    Olefin polymerization catalyst component, its preparation and use 有权
    烯烃聚合催化剂组分，其制备和应用

    公开(公告)号：US06620758B1

    公开(公告)日：2003-09-16

    申请号：US09286437

    申请日：1999-04-06

    申请人： Jarmo Lindroos ,  Solveig Johansson ,  Päivi Waldvogel

    发明人： Jarmo Lindroos ,  Solveig Johansson ,  Päivi Waldvogel

    IPC分类号： B01J3100

    CPC分类号： C08F10/00 ,  C08F10/02 ,  C08F110/02 ,  C08L23/04 ,  C08L2205/02 ,  C08L2314/02 ,  C08F4/025 ,  C08F4/6555 ,  C08L2666/04 ,  C08F2500/12 ,  C08F2500/17

    摘要： A catalyst having high activity independent of the hydrogen concentration and low gel productivity in the polymerization of ethylene has been prepared. The preparation comprises the steps of reacting: a support comprising a magnesium halide compound having the formula (1): (RO)2−nMgXn  (1)  wherein R is a C1-C20 alkyl or a C7-C26 aralkyl, each the same or different, X is a halogen, and n is an integer 1 or 2; a compound having the formula (2): R1n1Mm1X1(3m1−n1)  (2)  wherein M is B or Al, each same or different R1 is a C1-C10 alkyl, each same or different X1 is a halogen, m1 is 1 or 2, n1 is 1 or 2 when m1 is 1 and n1 is an integer from 1 to 5 when m1 is 2; a magnesium composition containing magnesium bonded to a hydrocarbyl and magnesium bonded to a hydrocarbyl oxide, said magnesium composition having the empirical formula (3): R2n2(R3O)2−n2Mg  (3)  wherein each same or different R2 is a C1-C20 alkyl each same or different R3 is a C1-C20 alkyl, n2 is between 0.01 and 1.99, which is the contact product of a dialkyl magnesium and an alcohol in a molar ratio of alcohol to dialkyl magnesium of 1.8-1.98 mol/mol, and; a titanium halide compound having the formula (4): (R4O)n3TiX24−n3  (4)  wherein each same or different R4 is a C1-C20 alkyl, each same or different X2 is a halogen, and n3 is 0 or an integer 1-3.

    摘要翻译： 已经制备了具有独立于乙烯聚合中的氢浓度和低凝胶生产率的高活性的催化剂。 该制备方法包括以下步骤：使包含具有式（1）的卤化镁化合物的载体：其中R是C1-C20烷基或C7-C26芳烷基，各自相同或不同，X是卤素，n 为整数1或2;具有式（2）的化合物：其中M为B或Al，各自相同或不同，R1为C1-C10烷基，各自相同或不同，X1为卤素，m1为1或2， 当m1为1时，n1为1或2，当m1为2时，n1为1至5的整数;镁与镁基键合到烃基和镁上键合到烃基氧化物上的镁组合物，所述镁组合物具有经验式（3） ：其中每个相同或不同的R 2是各自相同或不同的C 1 -C 20烷基，R 3是C 1 -C 20烷基，n 2在0.01和1.99之间，其是以醇的摩尔比计的二烷基镁和醇的接触产物 至1.8-1.98mol / mol的二烷基镁;和具有式（4）的卤化钛化合物：其中各自相同或不同的R 4为 C 1 -C 20烷基，各自相同或不同，X 2为卤素，n 3为0或整数1-3。

    Polymer composition for pipes
    10.
    发明授权
    Polymer composition for pipes 有权
    管道聚合物组成

    公开(公告)号：US06441096B1

    公开(公告)日：2002-08-27

    申请号：US09832227

    申请日：2001-04-10

    申请人： Mats Bäckman ,  Eeva-Leena Heino ,  Solveig Johansson ,  Jussi Laurell ,  Arja Lehtinen ,  Jarmo Lindroos ,  Marja Ora ,  Elisabeth Ribarits ,  Teija Sihvonen ,  Jari {umlaut over (Aa)}rilä

    发明人： Mats Bäckman ,  Eeva-Leena Heino ,  Solveig Johansson ,  Jussi Laurell ,  Arja Lehtinen ,  Jarmo Lindroos ,  Marja Ora ,  Elisabeth Ribarits ,  Teija Sihvonen ,  Jari {umlaut over (Aa)}rilä

    IPC分类号： C08L2300

    CPC分类号： C08F10/02 ,  C08F110/02 ,  C08F210/16 ,  C08L23/06 ,  C08L23/0815 ,  Y10S138/07 ,  C08F2/001 ,  C08L2666/04 ,  C08F2500/02 ,  C08F2500/12 ,  C08F2500/07 ,  C08F2500/17 ,  C08F2500/13 ,  C08F210/14 ,  C08F2500/01 ,  C08F210/08

    摘要： A multimodal polymer composition for pipes is disclosed as well as a pipes made thereof. The polymer is a multimodal polyethylene with a density of 0.930-0.965 g/cm3, and a viscosity at a shear stress of 747 Pa (&eegr;747 Pa) of at least 650 Pa.s, said multimodal polyethylene comprising a low molecular weight (LMW) ethylene homopolymer fraction and a high molecular weight (HMW) ethylene copolymer fraction, said HMW fraction having a weight ratio of the LMW fraction to the HMW fraction of (35-55):(65-45). Preferably, the multimodal polyethylene has a viscosity at a shear stress of 2.7 kPa (&eegr;2.7 kPa) of 260-450 kPa.s; and a shear thinning index (SHI) defined as the ratio of the viscosities at shear stresses of 2.7 and 210 kPa, respectively, of SHI27/210=50-150, and a storage modulus (G′) at a loss modulus (G″) of 5 kPa, of G′5 kPa≧3000 Pa. The pipe is made of the multimodal polymer composition and withstands a stress of 8.0 MPa gauge during 50 years at 20° C. (MRS8.0). Preferably, the pipe has a rapid crack propagation (RCP) S4-value, determined according to ISO 13477:1997(E), of −5° C. or lower and a slow crack propagation resistance, determined according to ISO 13479:1997, of at least 500 hrs at 4.6 MPa/80° C. The polymer composition affords good non-sagging properties to pipe made thereof.

    摘要翻译： 公开了一种用于管道的多峰聚合物组合物以及由其制成的管。 聚合物是密度为0.930-0.965g / cm 3的多峰聚乙烯，剪切应力为747Pa（eta747Pa）下的粘度为至少650Pa.s，所述多峰聚乙烯包含低分子量（LMW） 乙烯均聚物部分和高分子量（HMW）乙烯共聚物部分，所述HMW部分具有LMW部分与HMW部分的重量比（35-55）：（65-45）。 优选地，多峰聚乙烯在剪切应力为2.7kPa（eta2.7kPa）下的粘度为260-450kPa·s; 和剪切稀化指数（SHI），其分别定义为SHI27 / 210 = 50-150的剪切应力分别为2.7和210kPa的粘度比，以及损耗模量（G'）下的储能模量（G'）， '）为5kPa，G'5kPa> = 3000Pa。该管由多峰聚合物组合物制成，并且在20℃下在50年内耐受8.0MPa表压的应力（MRS8.0）。 优选地，管具有根据ISO 13477：1997（E）确定的-5℃或更低的快速裂纹扩展（RCP）S4值，并且根据ISO 13479：1997确定的缓慢的抗裂纹扩展性， 在4.6MPa / 80℃下至少500小时。聚合物组合物为其制成的管制得到良好的不下垂性能。