利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

32 条记录 (耗时 0.021 秒)

    Metallocene compounds, process for their preparation and their use in catalytic systems for the polymerization of olefins
    1.
    发明授权
    Metallocene compounds, process for their preparation and their use in catalytic systems for the polymerization of olefins 有权
    茂金属化合物，其制备方法及其在烯烃聚合催化体系中的应用

    公开(公告)号：US06635779B1

    公开(公告)日：2003-10-21

    申请号：US09913742

    申请日：2001-11-20

    申请人： John A. Ewen ,  Michael J. Elder ,  Robert L. Jones

    发明人： John A. Ewen ,  Michael J. Elder ,  Robert L. Jones

    IPC分类号： C07F1700

    CPC分类号： C07F17/00 ,  C07D333/78 ,  C08F4/65908 ,  C08F4/65912 ,  C08F4/65916 ,  C08F10/00 ,  C08F110/06 ,  C08F110/08 ,  C08F210/06 ,  C08F2420/06 ,  Y10S526/943 ,  C08F4/65927 ,  C08F2500/17 ,  C08F210/08 ,  C08F2500/20 ,  C08F210/16

    摘要： A class of metallocene compounds is disclosed having general formula (I) wherein Y is a moiety of formula (II) wherein A, B, and D, same or different from each other, are selected from an element of the groups 14 to 16 of the Periodic Table of the Elements (new IUPAC version), with the exclusion of nitrogen and oxygen; R1, R2, R3, R4 and R5 are hydrogen or hydrocarbon groups, Z is selected from a moiety of formula (II) as described above and from a moiety of formula (III) wherein R6, R7, R8 and R9, are hydrogen or hydrocarbon groups; L is a divalent bridging group; M is an atom of a transition metal selected from those belonging to group 3, 4, 5, 6 or to the lanthanide or actinide groups in the Periodic Table of the Elements (new IUPAC version), X, same or different, is hydrogen, a halogen, a R10, OR10, OSO2CF3, OCOR10, SR10, NR102 or PR102 group, wherein the substituents R10 are hydrogen or alkyl groups; p is an integer of from 1 to 3, being equal to the oxidation state of the metal M minus 2. The above metallocenes are particularly useful in the polymerization of propylene.

    摘要翻译： 公开了一类茂金属化合物，其具有通式（I），其中Y是式（II）的部分，其中A，B和D彼此相同或不同，选自第14〜16族的元素 元素周期表（新的IUPAC版本），排除氮和氧; R 1，R 2，R 3，R 4和R 5是氢或烃基，Z选自如上所述的式（II）部分和式 （III）其中R 6，R 7，R 8和R 9是氢或烃基; L是二价桥基; M是选自属于第3,4,5,6族的过渡金属的原子或元素周期表中的镧系元素或锕系元素（新的IUPAC版本），X相同或不同，为氢， 卤素，R 10，OR 10，OSO 2 CF 3，OCOR 10，SR 10，NR 10或PR 10，其中取代基R 10是氢或烷基 团体 p是1至3的整数，等于金属M的氧化态减去2.上述金属茂特别可用于丙烯的聚合。

    Addition of aluminum alkyl for improved metallocene catalyst
    3.
    发明授权
    Addition of aluminum alkyl for improved metallocene catalyst 失效
    为改善金属茂催化剂添加烷基铝

    公开(公告)号：US5519100A

    公开(公告)日：1996-05-21

    申请号：US830812

    申请日：1992-02-04

    申请人： John A. Ewen ,  Michael J. Elder

    发明人： John A. Ewen ,  Michael J. Elder

    IPC分类号： C07F17/00 ,  C08F4/60 ,  C08F4/602 ,  C08F4/649 ,  C08F4/657 ,  C08F4/659 ,  C08F4/6592 ,  C08F4/76 ,  C08F10/00 ,  C08F4/643 ,  C08F4/642

    CPC分类号： C08F10/00 ,  C08F4/65908 ,  C08F4/65912 ,  C08F4/65922

    摘要： This invention is for a catalyst system for polymerization of olefins using an ionic metallocene catalyst with aluminum alkyl. The metallocene catalyst is an ion pair formed from a neutral metallocene compound and an ionizing compound. The invention can be used in any method of producing ionic metallocene catalyst. Use of aluminum alkyl with an ionic metallocene catalyst eliminates the need for using methylaluminoxane (MAO). Catalysts produced by the method of this invention have high activity. The invention reduces catalyst poisons which cause low activity, no activity or uncontrolled polymerizations. Polymerizations using this catalyst system are reproducible and controllable.

    摘要翻译： 本发明涉及使用具有烷基铝的离子金属茂催化剂烯烃聚合的催化剂体系。 金属茂催化剂是由中性茂金属化合物和电离化合物形成的离子对。 本发明可用于制备离子金属茂催化剂的任何方法。 使用烷基铝与离子金属茂催化剂不需要使用甲基铝氧烷（MAO）。 通过本发明的方法生产的催化剂具有高活性。 本发明减少了引起低活性，无活性或不受控聚合的催化剂毒物。 使用该催化剂体系的聚合是可重现和可控的。

    Process and catalyst for producing syndiotactic polyolefins
    4.
    发明授权
    Process and catalyst for producing syndiotactic polyolefins 失效
    制备间同立构聚烯烃的方法和催化剂

    公开(公告)号：US5155080A

    公开(公告)日：1992-10-13

    申请号：US419055

    申请日：1989-10-10

    申请人： Michael J. Elder ,  Abbas Razavi ,  John A. Ewen

    发明人： Michael J. Elder ,  Abbas Razavi ,  John A. Ewen

    IPC分类号： C07F17/00 ,  C08F4/60 ,  C08F4/602 ,  C08F4/619 ,  C08F4/6192 ,  C08F4/639 ,  C08F4/6392 ,  C08F4/64 ,  C08F4/642 ,  C08F4/6592 ,  C08F4/76 ,  C08F8/00 ,  C08F10/00 ,  C08F10/06 ,  C08F110/06

    CPC分类号： C08F10/00 ,  C07F17/00 ,  C08F110/06 ,  C08F4/61908 ,  C08F4/61912 ,  C08F4/61927 ,  C08F4/65908 ,  C08F4/65912 ,  Y10S526/943

    摘要： Syndiospecific catalysts and processes for the syndiotactic propagation of a polymer chain derived from an ethylenically unsaturated monomer which contains 3 or more carbon atoms or is a substituted vinyl compound. The catalysts comprise an unbalanced metallocene cation, characterized by a cationic metallocene ligand having sterically dissimilar ring structures joined to a positively charged coordinating transition metal atom, and a stable noncoordinating counter anion for the metallocene cation. One of said ring structures is a substituted or unsubstituted cyclopentadienyl ring and the other of the ring structures is a substituted cyclopentadienyl group which is sterically different from the first cyclopentadienyl group. A structural bridge between cyclopentadienyl groups imparts stereorigidity to the catalyst. The catalyst is contacted with a C.sub.3 + alpha olefin or other ethylenically unsaturated compound in a polymerization reaction zone and maintained in contact with the catalyst in the reaction zone under polymerizatio conditions to produce a syndiotactic polymer.

    摘要翻译： 来自含有3个或更多个碳原子的烯键式不饱和单体的聚合物链的间同扩散的间同立构催化剂和方法，或者是取代的乙烯基化合物。 催化剂包含不平衡的茂金属阳离子，其特征在于阳离子茂金属配体具有与正电荷的配位过渡金属原子连接的空间异相环结构，以及用于金属茂阳离子的稳定的非配位抗衡阴离子。 所述环结构之一是取代或未取代的环戊二烯基环，另一个环结构是与第一环戊二烯基空间上不同的取代的环戊二烯基。 环戊二烯基之间的结构桥将催化剂赋予立体刚性。 催化剂在聚合反应区中与C3 +α烯烃或其它烯属不饱和化合物接触，并在聚合条件下与反应区中的催化剂保持接触，以产生间同立构聚合物。

    Open-pentadienyl metallocenes, precursors thereof and polymerization catalysts therefrom
    5.
    发明授权
    Open-pentadienyl metallocenes, precursors thereof and polymerization catalysts therefrom 失效
    开戊二烯基金属茂，其前体和聚合催化剂

    公开(公告)号：US06403772B1

    公开(公告)日：2002-06-11

    申请号：US09029801

    申请日：1998-03-06

    申请人： John A. Ewen ,  Robert W. Strozier ,  Robert L. Jones, Jr. ,  Michael J. Elder

    发明人： John A. Ewen ,  Robert W. Strozier ,  Robert L. Jones, Jr. ,  Michael J. Elder

    IPC分类号： C07F708

    CPC分类号： C08F10/00 ,  C07F17/00 ,  C08F4/619 ,  C08F4/61912 ,  C08F4/6192

    摘要： New metallocene compounds are described where the ligand contains at least one open-pentadienyl containing radical characterized by a cyclic or acyclic, six &pgr; electron, delocalized, five atomic center structure. These metallocenes can advantageously be used in catalyst systems for the polymerization of olefins to generate a wide variety of different polymers including HDPE, LLDPE, ethylenelpropylene/(diene) elastomers, tactiospecific C3+&agr;-olefin polymers, intimate mixture thereof and the like.

    摘要翻译： 描述了新的茂金属化合物，其中配体含有至少一个含有开环戊二烯基的基团，其特征在于环状或非环状六个π电子，离域的五原子中心结构。 这些茂金属可以有利地用于烯烃聚合的催化剂体系中，以生成各种不同的聚合物，包括HDPE，LLDPE，乙烯 - 丙烯/（二烯）弹性体，触媒特异性C 3+α-烯烃聚合物及其紧密混合物等。

    Method for controlling the melting points and molecular weights of syndiotactic polyolefins using metallocene catalyst systems
    6.
    发明授权
    Method for controlling the melting points and molecular weights of syndiotactic polyolefins using metallocene catalyst systems 失效
    使用茂金属催化剂体系控制间同立构聚烯烃的熔点和分子量的方法

    公开(公告)号：US5688735A

    公开(公告)日：1997-11-18

    申请号：US471055

    申请日：1995-06-06

    申请人： John A. Ewen ,  B. R. Reddy ,  Michael J. Elder

    发明人： John A. Ewen ,  B. R. Reddy ,  Michael J. Elder

    IPC分类号： C08F4/642 ,  C07F17/00 ,  C08F4/60 ,  C08F4/612 ,  C08F4/619 ,  C08F4/6192 ,  C08F4/622 ,  C08F4/6392 ,  C08F4/64 ,  C08F4/659 ,  C08F4/6592 ,  C08F8/00 ,  C08F10/00 ,  C08F110/06

    CPC分类号： C08F10/00 ,  C07F17/00 ,  C08F110/06 ,  C08F4/61908 ,  C08F4/61912 ,  C08F4/61927 ,  C08F4/63927 ,  C08F4/65908 ,  C08F4/65912 ,  C08F4/65927 ,  Y10S526/943

    摘要： This invention is for a method for varying the melting points and molecular weights of syndiotactic polyolefins by using metallocene catalysts with substituents on the aryl rings of a fluorene ligand in certain positions. Electron donating substituents, for example, dialkylamino, halogen, and alkoxy groups, when present on fluorene at C1, C2, C3 or C2 and C7 render the catalyst less active and decrease the polymer molecular weight. Electron donating substituents, such as alkyl, dialkylamino, halogen or alkoxy, at C4 not only increased the catalyst efficiency but also dramatically increased the polymer molecular weight. Bulky hydrocarbyl substituents, such as alkyl, cycloalkyl and aryl groups, at C2 and C7 increase the melting point. Bulky substituents such as hydrocarbyl groups like alkyl, cycloalkyl, aryl, alkoxy and dialkylamino groups etc., at C4/C5 decrease the melting point. When multiple substituents are present on fluorene, their effects are additive.

    摘要翻译： 本发明是通过在某些位置使用在芴配体的芳环上具有取代基的金属茂催化剂来改变间规聚烯烃的熔点和分子量的方法。 当C 1，C 2，C 3或C 2和C 7存在于芴上时，给电子取代基例如二烷基氨基，卤素和烷氧基使得催化剂活性降低并降低聚合物分子量。 C4中的电子给体取代基如烷基，二烷基氨基，卤素或烷氧基不仅提高了催化剂效率，而且显着提高了聚合物分子量。 C2和C7处的大量烃基取代基如烷基，环烷基和芳基增加了熔点。 在C4 / C5时，大量取代基如烃基如烷基，环烷基，芳基，烷氧基和二烷基氨基等降低了熔点。 当芴上存在多个取代基时，它们的作用是添加剂。

    Metallocene catalysts with lewis acids and aluminum alkyls
    7.
    发明授权
    Metallocene catalysts with lewis acids and aluminum alkyls 失效
    茂金属催化剂与路易斯酸和烷基铝

    公开(公告)号：US5561092A

    公开(公告)日：1996-10-01

    申请号：US40048

    申请日：1993-03-30

    申请人： John A. Ewen ,  Michael J. Elder

    发明人： John A. Ewen ,  Michael J. Elder

    IPC分类号： C07F17/00 ,  C08F4/60 ,  C08F4/602 ,  C08F4/639 ,  C08F4/6392 ,  C08F4/643 ,  C08F4/646 ,  C08F4/659 ,  C08F4/6592 ,  C08F10/00 ,  C08F10/06 ,  B01J31/00

    CPC分类号： C08F10/00 ,  C08F10/06 ,  C08F4/63908 ,  C08F4/63912 ,  C08F4/63922 ,  C08F4/65908 ,  C08F4/65927 ,  Y10S526/901 ,  Y10S526/943

    摘要： This invention is for a catalyst system comprising a neutral metallocene compound, an aluminum alkyl and a Lewis acid. The Lewis acid must be of sufficient acidity to ionize a neutral metallocene compound to form a cationic metallocene catalyst. The ligands of the Lewis acid should not be reactive with the metallocene cation. Any metallocene catalyst compound having two cyclopentadienyl rings, substituted or unsubstituted, attached to a transition metal which can be ionized by a Lewis acid would be useful in this invention. The invention is also for the process of making the catalyst system and the process for using the catalyst system in polymerization of olefins. The metallocene is contacted with the Lewis acid. The aluminum alkyl is contacted with the olefin. The two mixtures are contacted with each other under polymerization conditions.

    摘要翻译： 本发明涉及包含中性茂金属化合物，烷基铝和路易斯酸的催化剂体系。 路易斯酸必须具有足够的酸度以电离中性茂金属化合物以形成阳离子金属茂催化剂。 路易斯酸的配体不应与金属茂阳离子反应。 具有连接到可被路易斯酸离子化的过渡金属上的两个具有取代或未取代的环戊二烯基环的茂金属催化剂化合物在本发明中是有用的。 本发明还涉及制备催化剂体系的方法和使用催化剂体系在烯烃聚合中的方法。 茂金属与路易斯酸接触。 烷基铝与烯烃接触。 两种混合物在聚合条件下彼此接触。

    Metallocene compounds, process for their preparation and their use in catalytic systems for the polymerization of olefins
    8.
    发明授权
    Metallocene compounds, process for their preparation and their use in catalytic systems for the polymerization of olefins 有权
    茂金属化合物，其制备方法及其在烯烃聚合催化体系中的应用

    公开(公告)号：US06444833B1

    公开(公告)日：2002-09-03

    申请号：US09461858

    申请日：1999-12-15

    申请人： John A. Ewen ,  Michael J. Elder ,  Robert L. Jones

    发明人： John A. Ewen ,  Michael J. Elder ,  Robert L. Jones

    IPC分类号： C07F1700

    CPC分类号： C07F17/00 ,  C07D333/78 ,  C08F4/65908 ,  C08F4/65912 ,  C08F4/65916 ,  C08F10/00 ,  C08F110/06 ,  C08F110/08 ,  C08F210/06 ,  C08F2420/06 ,  Y10S526/943 ,  C08F4/65927 ,  C08F2500/17 ,  C08F210/08 ,  C08F2500/20 ,  C08F210/16

    摘要： A class of metallocene compounds is disclosed having the general formula (I): wherein Y is a moiety of formula (II) wherein A, B and D, same or different from each other, are selected from an element of the groups 14 to 16 of the Periodic Table of the Elements (new IUPAC version), with the exclusion of nitrogen and oxygen; R1, R2, R3, R4 and R5 are hydrogen or hydrocarbon groups, Z is selected from a moiety of formula (II) as described above and from a moiety of formula (III): wherein R6, R7, R8 and R9, are hydrogen or hydrocarbon groups; L is a divalent bridging group; M is an atom of a transition metal selected from those belonging to group 3, 4, 5, 6 or to the lanthanide or actinide groups in the Periodic Table of the Elements (new IUPAC version), X, same or different, is hydrogen, a halogen, a R10, OR10, OSO2CF3, OCOR10, SR10, NR102 or PR102 group, wherein the substituents R10 are hydrogen or alkyl groups; p is an integer of from 0 to 3, being equal to the oxidation state of the metal M minus 2. The above metallocenes are particular useful in the polymerization of propylene.

    摘要翻译： 公开了一类具有通式（I）的茂金属化合物：其中Y是式（II）的部分，其中A，B和D彼此相同或不同，选自第14至16族的元素 的元素周期表（新的IUPAC版本），排除氮和氧; R 1，R 2，R 3，R 4和R 5是氢或烃基，Z选自如上所述的式（II）部分和式（III）的部分：其中R 6，R 7，R 8和R 9是氢 或烃基; L是二价桥基; M是选自属于第3,4,5,6族的过渡金属的原子或元素周期表中的镧系元素或锕系元素（新的IUPAC版本），X相同或不同，为氢， 卤素，R 10，OR 10，OSO 2 CF 3，OCOR 10，SR 10，NR 102或PR 102基团，其中取代基R 10为氢或烷基; p为0-3的整数，等于金属M的氧化态减去2.上述金属茂特别适用于丙烯的聚合。

    Process and catalyst for producing isotactic polyolefins
    9.
    发明授权
    Process and catalyst for producing isotactic polyolefins 失效
    用于生产全同立构聚烯烃的方法和催化剂

    公开(公告)号：US06262199B1

    公开(公告)日：2001-07-17

    申请号：US09087547

    申请日：1998-05-29

    申请人： John A. Ewen ,  Michael J. Elder ,  B. Raghava Reddy

    发明人： John A. Ewen ,  Michael J. Elder ,  B. Raghava Reddy

    IPC分类号： C08F460

    CPC分类号： C08F10/00 ,  C08F4/63912 ,  C08F4/63927 ,  Y10S526/943

    摘要： This invention is for a metallocene catalyst component comprising a bridged metallocene in which the two substituted indenyl rings are complexed to a metal hydrocarbyl or metal halide. This metallocene catalyst component is useful for polymerizing olefins having three or more carbon atoms to produce a polymer with a isotactic stereochemical configuration. The catalyst component is a stereorigid metallocene described by the formula: R″(CpR2C4R4)(CpR′2C4R′4)MeQk wherein (CpR2C4R4) and (CpR2C4R4) are substituted indenyl rings; each R and R′ is a hydrogen or a hydrocarbyl radical having 1-20 carbon atoms; R″ is a structural bridge between the two indenyl rings imparting stereorigidity to the indenyl rings; Me is a transition metal; and each is a hydrocarbyl radical or is a halogen. Further, one R and R′ is a hydrocarbyl radical having 1-20 carbon atoms in a proximal position adjacent to the bridgehead carbon of the indenyl rings. The invention also includes a process of preparing isotactic polyolefins that comprises the use of one or more of the disclosed catalyst components and also a process for preparing the catalyst components.

    摘要翻译： 本发明涉及包含桥连金属茂的茂金属催化剂组分，其中两个取代的茚基环与金属烃基或金属卤化物络合。 该茂金属催化剂组分可用于聚合具有三个或更多个碳原子的烯烃以制备具有全同立构立体化学构型的聚合物。 催化剂组分是由下式描述的立体刚性茂金属：其中（CpR2C4R4）和（CpR2C4R4）是取代的茚基环; 每个R和R'是氢或具有1-20个碳原子的烃基; R“是两个茚基环之间的结构桥，赋予茚基环立体刚性; 我是过渡金属; 并且各自为烃基或是卤素。 此外，一个R和R'是在邻近茚基环的桥头碳的近端位置具有1-20个碳原子的烃基。 本发明还包括制备全同立构聚烯烃的方法，其包括使用一种或多种所公开的催化剂组分以及制备催化剂组分的方法。