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36 条记录 (耗时 0.015 秒)

    Improved polymer yield from supported metallocene catalysts
    17.
    发明公开
    Improved polymer yield from supported metallocene catalysts 失效
    金属蛋白酶

    公开(公告)号：EP0849286A1

    公开(公告)日：1998-06-24

    申请号：EP97122162.7

    申请日：1997-12-16

    申请人： FINA TECHNOLOGY, INC.

    发明人： Shamshoum, Edwar S. ,  Bauch, Christopher G.

    IPC分类号： C08F4/642 ,  C08F10/06 ,  C08F4/02

    CPC分类号： C08F10/06 ,  C08F4/61904 ,  C08F4/61912 ,  C08F4/61916 ,  C08F4/61922 ,  C08F10/00 ,  C08F110/06 ,  Y10S526/943 ,  C08F2500/12 ,  C08F2500/18 ,  C08F2500/04

    摘要： The present invention provides a catalyst and a process for increased catalyst activity and polymer yield. The catalyst system used in the process includes at least two supported metallocene catalyst precursor in combination with an oxyorganoaluminum. The process can be applied to the polymerization of olefins, preferably olefin of three carbon atoms and higher, particularly propylene. The catalyst activity and polymer yield for a dual supported metallocene catalyst are increased over that for a single supported metallocene catalyst. The polymer produced by this dual supported metallocene system has a relatively broad molecular weight distribution.

    摘要翻译： 本发明提供催化剂和提高催化剂活性和聚合物收率的方法。 在该方法中使用的催化剂体系包括与氧有机铝结合的至少两种负载的茂金属催化剂前体。 该方法可以应用于烯烃，优选三个或更多个碳原子的烯烃，特别是丙烯的聚合。 双重负载的茂金属催化剂的催化剂活性和聚合物产率比单一负载金属茂催化剂的催化剂活性和聚合物收率增加。 由这种双重载体金属茂体系制备的聚合物具有相对宽的分子量分布。

    A catalyst system to produce highly crystalline polypropylene
    18.
    发明公开
    A catalyst system to produce highly crystalline polypropylene 失效
    一种生产高结晶度聚丙烯的催化剂体系

    公开(公告)号：EP0752431A3

    公开(公告)日：1997-02-12

    申请号：EP96109106.3

    申请日：1996-06-07

    申请人： FINA TECHNOLOGY, INC.

    发明人： Shamshoum, Edwar S. ,  Kim, Sehyun

    IPC分类号： C08F10/00 ,  C08F4/646

    CPC分类号： C08F10/00 ,  C08F4/6465

    摘要： The present invention provides a catalyst system that exhibits control of desired properties in the polymer product. The catalyst system includes a conventional supported Ziegler-Natta catalyst containing an organic phosphorus compound in combination with an electron donor having the general formula SiR m (OR') 4-m where R is selected from the group consisting of an alkyl group, a cycloalkyl group, an aryl group and a vinyl group; R' is an alkyl group; and m is 0-3, wherein when R is an alkyl group, R may be identical with R'; when m is 0, 1 or 2, the R' groups may be identical or different; and when m is 1, 2 or 3, the R groups may be identical or different. The system easily achieves efficiencies over 30 kg/g-cat·h. The system also exhibits good control over the xylene solubles of the polymer products and produces a highly crystalline polymer product. The electron donor is preferably described by the formula:
    wherein R 1 is an alkyl or cycloalkyl group containing a primary, secondary or tertiary carbon atom attached to the silicon atom; R 2 and R 3 are alkyl or aryl groups; and R 4 is an alkyl or cycloalkyl group with a secondary or tertiary carbon atom attached to the silicon atom. More preferably, R 1 and R 4 are both cycloalkyl groups and are both the same. Most preferably, R 1 and R 4 are both cyclopentyl groups and R 2 and R 3 are both methoxy groups. Specifically, the electron donor may be dicyclopentyldimethoxysilane.

    摘要翻译： 本发明提供了显示出对聚合物产品中所需性能的控制的催化剂体系。 该催化剂体系包括常规负载的齐格勒 - 纳塔催化剂，其含有有机磷化合物与具有通式SiR m（OR'）4-m的电子给体的组合，其中R选自烷基，环烷基 ，芳基和乙烯基; R'是烷基; m为0-3，其中当R为烷基时，R可以与R'相同; 当m为0,1或2时，R'基团可以相同或不同; 当m为1,2或3时，R基团可以相同或不同。 该系统轻松实现超过30 kg / g-cat·h的效率。 该系统还显示出对聚合物产品的二甲苯可溶物的良好控制并产生高度结晶的聚合物产物。 电子给体优选由下式描述：其中R1是含有与硅原子连接的伯，仲或叔碳原子的烷基或环烷基; R2和R3是烷基或芳基; 并且R4是具有与硅原子连接的仲或叔碳原子的烷基或环烷基。 更优选地，R1和R4都是环烷基并且都是相同的。 最优选地，R1和R4都是环戊基，R2和R3都是甲氧基。 具体而言，电子给体可以是二环戊基二甲氧基硅烷。

    Bifunctional electron donors for olefin polymerization
    19.
    发明公开
    Bifunctional electron donors for olefin polymerization 失效
    Bifunktionelle Elektrondonorefürdie Olefinpolymerizing

    公开(公告)号：EP0747401A1

    公开(公告)日：1996-12-11

    申请号：EP96109099.0

    申请日：1996-06-06

    申请人： FINA TECHNOLOGY, INC.

    发明人： Shamshoum, Edwar S. ,  Raucher, David J.

    IPC分类号： C08F10/00 ,  C08F4/646

    CPC分类号： C08F10/00 ,  C08F4/6465

    摘要： The present invention provides a catalyst system which includes a Ziegler-Natta titanium catalyst in combination with an electron donor described by the formulae:


    wherein R 1 is a terminally-substituted alkyl group containing a primary carbon atom attached to the silicon atom; R 2 , R 3 and R 5 are alkyl or aryl groups; and R 4 is an alkyl group with a primary carbon atom attached to the silicon atom. R 1 is preferably a primary alkyl group of 1-3 carbon atoms (exclusive of the carbon atoms of the alkyl substituent) which has the terminal carbon atom substituted with an alkyl substituent of the following formulae:

            N-R'-N'-



            N-R'-


    where N and N' are an electron-donating group, such as an amino group (NH 2 - and -NH-, respectively), R' is a primary alkyl group of 1-3 carbon atoms and, most preferably is ethyl or propyl; R 2 , R 3 and R 5 are methyl, ethyl, propyl, or butyl groups and not necessarily the same; and R 4 is a primary alkyl group of 1-3 carbon atoms and, most preferably is methyl; R 1 is most preferably 3-aminopropyl or 3-(2-aminoethylamino)propyl; R 4 is most preferably methyl; preferred electron donors are 3-aminoprolylmethyl diethoxysilane(3-APMDS) or 3-(2-aminoethylamino)propyltrimethoxysilane [3-(2-AEA)PTS] or 3-(2-aminoethylamino)propylmethyldimethoxysilane[3(2-AEA)PMDS]. The system has a catalyst efficiency of at least 5 kg/g-cat·h as the Si/Ti mole ratio varies from 2-20 in the system.

    摘要翻译： 本发明提供了一种催化剂体系，其包括齐格勒 - 纳塔钛催化剂与由下式所示的电子给体结合：其中R 1是含有连接到硅上的伯原子的末端取代的烷基 原子; R2，R3和R5是烷基或芳基; R4是与硅原子连接的伯碳原子的烷基。 R1优选为具有1-3个碳原子的伯烷基（不包括烷基取代基的碳原子），其末端碳原子被下式的烷基取代基取代：N-R'-N'- R'其中N和N'是给电子基团，例如氨基（分别为NH 2 - 和-NH-），R'为1-3个碳原子的伯烷基，最优选为乙基 或丙基; R2，R3和R5是甲基，乙基，丙基或丁基，不一定相同; 且R 4为1-3个碳原子的伯烷基，最优选为甲基; R1最优选为3-氨基丙基或3-（2-氨基乙基氨基）丙基; R4最优选为甲基; 优选的电子给体是3-氨基丙基甲基二乙氧基硅烷（3-APMDS）或3-（2-氨基乙基氨基）丙基三甲氧基硅烷Ä3-（2-AEA）PTS或3-（2-氨基乙基氨基）丙基甲基二甲氧基硅烷3（2-AEA）PMDS。 该系统的催化剂效率至少为5kg / g-cat.h，因为Si / Ti摩尔比在系统中从2-20变化。

    Selective activity of metallocene-type catalyst for isotactic poly-alpha-olefin production
    20.
    发明公开
    Selective activity of metallocene-type catalyst for isotactic poly-alpha-olefin production 失效
    用于等规聚-α-烯烃生产的金属茂型催化剂的选择性活性

    公开(公告)号：EP1291365A3

    公开(公告)日：2003-12-10

    申请号：EP02079474.9

    申请日：1998-01-27

    申请人： FINA TECHNOLOGY, INC.

    发明人： Shamshoum, Edwar S. ,  Lopez, Margarito ,  Harris, Theodore G.

    IPC分类号： C08F4/642 ,  C08F10/00

    CPC分类号： C08F10/00 ,  C08F4/65916 ,  C08F4/65927 ,  C08F110/06 ,  C08F4/65912 ,  C08F2500/15 ,  C08F2500/01

    摘要： This invention describes a process for preparing isotactic poly-alpha olefin of melt flow equal to or less than 8 dg/min comprising the steps of: A. providing a suitable catalyst system capable of producing isotactic poly-alpha olefin comprising a metallocene-type catalyst, an alumoxane as cocatalyst or catalyst activator, and optionally a catalyst support; B. ripening the suitable catalyst system of step A by contacting with an alkyl aluminum for a period of time of from 6 hours to 14 days ; C. polymerising a suitable monomer using the ripened catalyst system of step B ; and recovering the desired isotactic polyolefin.

    摘要翻译： 本发明描述了一种制备熔体流动等于或小于8dg / min的全同立构聚-α烯烃的方法，该方法包括以下步骤：A.提​​供能够制备包含金属茂型催化剂的全同立构聚-α烯烃的合适催化剂体系 ，作为助催化剂或催化剂活化剂的铝氧烷，和任选的催化剂载体; B.通过与烷基铝接触6小时至14天的时间来熟化步骤A的合适的催化剂体系; C.使用步骤B的熟化催化剂体系聚合合适的单体; 并回收所需的全同立构聚烯烃。