利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

352 条记录 (耗时 0.03 秒)

    Transition metal olefin polymerization catalyst having cyclopropenyl derived ligands
    14.
    发明授权
    Transition metal olefin polymerization catalyst having cyclopropenyl derived ligands 失效
    具有环丙烯基衍生配体的过渡金属烯烃聚合催化剂

    公开(公告)号：US06767856B1

    公开(公告)日：2004-07-27

    申请号：US09634195

    申请日：2000-08-09

    申请人： Donna Jean Crowther

    发明人： Donna Jean Crowther

    IPC分类号： B01J3100

    CPC分类号： C08F10/00 ,  C08F4/61912 ,  C08F4/6192 ,  C08F4/63912 ,  C08F110/02 ,  C08F210/16 ,  Y10S526/943 ,  C08F4/619 ,  C08F2500/03 ,  C08F210/14 ,  C08F4/6392

    摘要： This invention is directed to cationic polymerization of olefins using catalysts comprising a Group 6 or 10 neutral transition metal cation composition having a cyclopropenyl ring, a pi-bonded cyclopentadienyl ligand or cyclopentadienyl group-containing ligand and an amido or imido ligand. The precursor of the neutral transition metal composition is activated to a catalytic state by exposure to an activator composition that may be any of the heretofore known activator compositions such as an alumoxane or a compatible non-coordinating anion (NCA).

    摘要翻译： 本发明涉及使用包含具有环丙烯基环的基团6或10的中性过渡金属阳离子组合物，π键合的环戊二烯基配位体或含环戊二烯基的配体和酰氨基或亚氨基配体的催化剂进行烯烃的阳离子聚合。 中性过渡金属组合物的前体通过暴露于活化剂组合物而被活化至催化状态，活化剂组合物可以是迄今已知的活化剂组合物，例如铝氧烷或相容的非配位阴离子（NCA）。

    Olefin polymerization process
    15.
    发明授权
    Olefin polymerization process 失效
    烯烃聚合工艺

    公开(公告)号：US06610799B1

    公开(公告)日：2003-08-26

    申请号：US09913529

    申请日：2001-10-24

    申请人： Arild Follestad ,  Vidar Almqvist ,  Ketil Strand Andersen ,  Richard Blom ,  Ivar Martin Dahl ,  Arild Geir Andersen

    发明人： Arild Follestad ,  Vidar Almqvist ,  Ketil Strand Andersen ,  Richard Blom ,  Ivar Martin Dahl ,  Arild Geir Andersen

    IPC分类号： C08F444

    CPC分类号： C08F10/00 ,  C08F4/63912 ,  C08F4/63916 ,  C08F4/63922 ,  C08F4/65904 ,  C08F210/16 ,  Y10S526/919 ,  C08F4/63904 ,  C08F2/00 ,  C08F210/14 ,  C08F2500/12 ,  C08F2500/04 ,  C08F2500/07

    摘要： A process for olefin polymerization in a reaction vessel, said process comprising polymerizing at least one &agr;-olefin in a polymerization stage employing a catalyst feed comprising 1) a first catalyst composition having at least two active catalytic sites capable of producing a first set of polymer components; 2) a second catalyst composition having at least two active catalytic sites capable of giving essentially the same set of polymer components as produced by the catalyst in feed (1) under the same polymerization conditions but these components in a different ratio to those produced by the catalyst composition of feed (1); wherein the amounts of catalyst compositions (1 and 2) fed into the reaction vessel are independently controlled.

    摘要翻译： 一种在反应容器中进行烯烃聚合的方法，所述方法包括使用催化剂进料在聚合阶段聚合至少一种α-烯烃，所述方法包括：1）具有至少两个活性催化部位的第一催化剂组合物，所述催化剂组合物能够产生第一组聚合物 组件; 2）具有至少两个活性催化部位的第二催化剂组合物，其能够在相同的聚合条件下能够提供基本上由进料（1）中的催化剂产生的相同组的聚合物组分，但这些组分以与由 饲料（1）的催化剂组成; 其中进料到反应容器中的催化剂组合物（1和2）的量是独立控制的。

    Catalyst component and catalyst for addition polymerization, and process for producing addition polymer
    16.
    发明申请
    Catalyst component and catalyst for addition polymerization, and process for producing addition polymer 失效
    用于加成聚合的催化剂组分和催化剂，以及生产加成聚合物的方法

    公开(公告)号：US20030158355A1

    公开(公告)日：2003-08-21

    申请号：US10324122

    申请日：2002-12-20

    发明人： Masanobu Hidai ,  Masaaki Nabika

    IPC分类号： C08F004/70

    CPC分类号： C07F17/00 ,  C07F11/005 ,  C08F4/63908 ,  C08F4/63912 ,  C08F10/00 ,  C08F110/02 ,  C08F110/06 ,  C08F210/16 ,  C08F4/6392 ,  C08F2500/03 ,  C08F2500/16 ,  C08F2500/15 ,  C08F210/14 ,  C08F2500/10 ,  C08F2500/17

    摘要： A catalyst obtained by contacting a transition metal compound (A) of the general formula null1null: nullLpXoCpjM(N2)nMnullXmLlnullXnullknullnullnull1null, wherein M and Mnull independently represent a transition metal of Group 3 to 10; X independently represents a hydrogen atom, halogen atom, a specific hydrocarbon group or the like; Cp is a cyclopentadienyl group; L represents a group which bonds to M or Mnull by lone pair of electrons or a null electron; Xnull represents a counter anion; k, l, m, o and p each independently represent an integer of 0 to 5; j represents an integer of 0 to 2; nnullonullpnulljnull6; n represents an integer of 1 to 3; and nnulllnullmnull6, with an organoaluminum, and an aluminoxane and/or boron compound, or with an aluminoxane and/or boron compound, and a process for producing an addition polymerization with the catalyst.

    摘要翻译： 通过使通式[1]的过渡金属化合物（A）：[LpXoCpjM（N2）nM'XmL1] X'k [1]接触而获得的催化剂，其中M和M'独立地表示第3族的过渡金属， 10; X独立地表示氢原子，卤素原子，特定烃基等; Cp是环戊二烯基; L表示通过孤对电子或π电子键合到M或M'的基团; X'表示抗衡阴离子; k，l，m，o和p各自独立地表示0〜5的整数， j表示0〜2的整数， n + o + p + j <= 6; n表示1〜3的整数， 和n + 1 + m <= 6，与有机铝，铝氧烷和/或硼化合物，或与铝氧烷和/或硼化合物，以及用催化剂生产加成聚合的方法。

    Polymerization catalysts, their production and use
    17.
    发明授权
    Polymerization catalysts, their production and use 失效
    聚合催化剂，其生产和使用

    公开(公告)号：US06608000B1

    公开(公告)日：2003-08-19

    申请号：US09661414

    申请日：2000-09-13

    申请人： Robert Lee Bamberger ,  Moses Olukayode Jejelowo

    发明人： Robert Lee Bamberger ,  Moses Olukayode Jejelowo

    IPC分类号： B01J3100

    CPC分类号： C08L23/0815 ,  C08F4/63904 ,  C08F4/63908 ,  C08F4/63912 ,  C08F4/63916 ,  C08F4/6392 ,  C08F4/63922 ,  C08F4/65912 ,  C08F4/65916 ,  C08F10/00 ,  C08F210/16 ,  C08L2314/06 ,  Y10S526/901 ,  Y10S526/943 ,  C08F4/65925 ,  C08F210/08 ,  C08F2500/03 ,  C08F2500/11 ,  C08F2500/12 ,  C08F2500/06 ,  C08F2500/26 ,  C08F210/14 ,  C08F4/63925 ,  C08F2500/04 ,  C08F2500/17 ,  C08F2500/10

    摘要： The invention generally relates to a metallocene-based, olefin polymerization catalyst system. The easily processible polymer product has a broad molecular weight distribution, a high molecular weight, and a narrow composition distribution. The catalyst system comprises a first component with a Group-4-6 metal bonded to cyclopentadienyl-containing rings having at least two substituents bonded to the rings in the same position; a second component comprising a Group-4-6 metal bonded to cyclopentadienyl-containing rings having at least two substituents bonded to the rings; and a third component comprising a Group-4-6 metal bonded to cyclopentadienyl-containing rings where one of the rings is substituted identically to the first component and another is substituted identically to the second component. When the substituents of the first and second components are the same, they are bonded to the first component rings at positions different from the bonding positions of the second component rings.

    摘要翻译： 本发明一般涉及基于金属茂的烯烃聚合催化剂体系。 容易加工的聚合物产物具有宽的分子量分布，高分子量和窄的组成分布。 该催化剂体系包括具有4-6族金属的第一组分与具有至少两个与相同位置的环结合的取代基的含环戊二烯基的环键合; 第二组分包含键合至含环戊二烯基的环的4-6族金属，所述环具有至少两个与所述环结合的取代基; 以及包含与含环戊二烯基的环键合的4-6族金属的第三组分，其中一个环与第一组分相同地取代，另一个与第二组分相同地被取代。 当第一和第二组分的取代基相同时，它们在与第二组分环的键合位置不同的位置处与第一组分环结合。

    Method for varying the melting points and molecular weights of polyolefins using metallocene catalyst systems
    20.
    发明申请
    Method for varying the melting points and molecular weights of polyolefins using metallocene catalyst systems 失效
    使用茂金属催化剂体系改变聚烯烃的熔点和分子量的方法

    公开(公告)号：US20020193537A1

    公开(公告)日：2002-12-19

    申请号：US10045875

    申请日：2001-11-07

    发明人： John A. Ewen

    IPC分类号： C08F004/44 ,  C07F017/00

    CPC分类号： C08F10/00 ,  C07F17/00 ,  C08F4/63912 ,  C08F4/63927 ,  C08F4/65912 ,  C08F110/02 ,  C08F110/06 ,  Y10S526/943 ,  C08F4/65927 ,  C08F2500/17 ,  C08F2500/03 ,  C08F2500/15

    摘要： The present invention provides a method for varying the melting points and molecular weights of polyolefins by changing the structure of the catalyst used in the polymerization. The catalysts that are useful in the present invention are chiral, stereorigid metallocene catalyst of the formula Rnull(C5Rnullm)2MeQ. The catalysts include a bridge structure between the (C5Rnullm) groups and may contain substituents on the groups. It has been discovered that the melting points and molecular weights of the polymers produced by such catalysts are influenced by the bridge and substituents added to the (C5Rnullm) groups. Thus, the present invention provides a method for varying the melting points of the polymer product and a method of varying the molecular weights of the product by changing the components and structure of the metallocene catalysts. The present invention also provides a process for polymerizing olefins in which the melting points and/or molecular weights of the product may be controlled. Also included in the invention is the discovery that the melting points of the products are controlled by the number of inversions in the xylene insoluble fraction of the polymer.

    摘要翻译： 本发明提供了通过改变聚合中使用的催化剂的结构来改变聚烯烃的熔点和分子量的方法。 可用于本发明的催化剂是式R“（C5R''m）2eQ的手性，立体刚性茂金属催化剂。 催化剂包括（C5R'm）基团之间的桥结构，并且可以在基团上含有取代基。 已经发现，由这些催化剂制备的聚合物的熔点和分子量受加入（C5R'm）基团的桥和取代基的影响。 因此，本发明提供了改变聚合物产物的熔点的方法和通过改变茂金属催化剂的组分和结构来改变产物分子量的方法。 本发明还提供了可以控制产物的熔点和/或分子量的烯烃聚合方法。 本发明还包括以下发现：产物的熔点由聚合物的二甲苯不溶部分的反转次数控制。