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

    IPC分类号: C07F1700

    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

    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

    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。

    Process for preparing low molecular weight olefin polymers, organometallic transition metal compounds biscyclopentadienyl ligand systems and catalyst systems
    7.
    发明申请
    Process for preparing low molecular weight olefin polymers, organometallic transition metal compounds biscyclopentadienyl ligand systems and catalyst systems 审中-公开
    制备低分子量烯烃聚合物,有机金属过渡金属化合物双环戊二烯基配体体系和催化剂体系的方法

    公开(公告)号:US20090082533A1

    公开(公告)日:2009-03-26

    申请号:US11793844

    申请日:2005-11-18

    申请人: Michael J. Elder

    发明人: Michael J. Elder

    IPC分类号: C07D333/78 C08F4/52

    摘要: The present invention relates to a process for preparing olefin polymers having a molar mass Mw of from 500 to 50 000 g/mol by polymerization or copolymerization of at least one olefin of the formula Ra—CH═CH—Rb, where Ra and Rb are identical or different and are each a hydrogen atom or a hydrocarbon radical having from 1 to 20 carbon atoms, or Ra and Rb together with the atoms connecting them can form a ring, at a temperature of from −60 to 200° C. and a pressure of from 0.5 to 100 bar, in solution, in suspension or in the gas phase, in the presence of hydrogen and in the presence of a catalyst system comprising at least one organometallic transition metal compound and at least one cocatalyst, wherein the organometallic transition metal compound is a compound of the formula (I), specific organometallic transition metal compounds, biscyclopentadienyl ligand systems having such a specific substitution pattern, catalyst systems comprising at least one of the organometallic transition metal compounds of the invention and the use of the biscyclopentadienyl ligand systems of the invention for preparing organometallic transition metal compounds.

    摘要翻译: 本发明涉及一种通过聚合或共聚至少一种式Ra-CH-CH-Rb的烯烃(其中Ra和Rb是)的方法制备摩尔质量Mw为500-500g / mol的烯烃聚合物的方法 相同或不同,并且各自为氢原子或具有1至20个碳原子的烃基,或者Ra和Rb与连接它们的原子一起可以在-60至200℃的温度下形成环,并且 压力为0.5至100巴,溶液中,悬浮液中或气相中,在氢气存在下和在包含至少一种有机金属过渡金属化合物和至少一种助催化剂的催化剂体系存在下,其中有机金属转变 金属化合物是式(I)的化合物,特定的有机金属过渡金属化合物,具有这种特定取代模式的双环戊二烯基配体体系,包含至少一种有机金属转变体 本发明的化合物和本发明的双环戊二烯基配体体系用于制备有机金属过渡金属化合物的用途。

    Metallocene compounds and process for the preparation of propylene polymers
    8.
    发明授权
    Metallocene compounds and process for the preparation of propylene polymers 有权
    茂金属化合物和制备丙烯聚合物的方法

    公开(公告)号:US07141637B2

    公开(公告)日:2006-11-28

    申请号:US10496253

    申请日:2002-11-28

    IPC分类号: C08F4/6342 C07F17/00

    摘要: A metallocene compound of formula (I) wherein M is zirconium, hafnium or titanium; X is hydrogen, halogen, or a hydrocarbyl radical optionally containing heteroatoms; R2, R3, R4 and R5, are hydrogen or hydrocarbyl radicals; R6 is a hydrocarbil radical; L is a divalent bridging group T is a radical of formula (II), (III), (IV) or (V), wherein R8 and R9 are a hydrogen atom or a hydrocarbyl radical. with the proviso that at least one group among R1, R5, R6 and R8 is a group of formula C(R11)2R12 wherein R11, equal to or different from each other, is an hydrocarbyl radical; and R12 is hydrogen or an hydrocarbyl radical. These compounds are fit for the preparation of propylene copolymers.

    摘要翻译: 式(I)的茂金属化合物,其中M是锆,铪或钛; X是氢,卤素或任选地含有杂原子的烃基; R 2,R 3,R 4和R 5是氢或烃基; R 6是烃基; L是二价桥连基团T是式(II),(III),(IV)或(V)的基团,其中R 8和R 9是 氢原子或烃基。 条件是R 1,R 5,R 6和R 8中的至少一个基团是 式C(R 11)12 R 12,其中R 11彼此等于或不同的基团 ,是烃基; R 12是氢或烃基。 这些化合物适用于制备丙烯共聚物。

    Catalyst and process for polymerization of olefins
    10.
    发明授权
    Catalyst and process for polymerization of olefins 失效
    催化剂和烯烃聚合方法

    公开(公告)号:US5663249A

    公开(公告)日:1997-09-02

    申请号:US339842

    申请日:1994-11-15

    摘要: This invention uses a new method of producing ionic metallocene compounds. These compounds are useful as catalysts for polymerization of olefins, primarily propylene. This method uses an ionizing agent which ionizes the neutral metallocene compound. The ionizing ionic compound does not contain an active proton and contains a carbonium, oxonium or sulfonium cation. The anion of the ionizing ionic compound is not coordinated or is only loosely coordinated to the metallocene cation and is chemically unreactive with the metallocene cation. Examples of such compounds are triphenylcarbenium tetrakis(pentafluorophenyl)boronate, triphenylcarbenium tris(pentafluorophenyl)phenyl boronate and triphenylcarbenium tris(pentafluorophenyl)4-trimethylsilyl-2,3,5,6-tetrafluorophenylboronate.The process of making catalysts with this invention produces catalysts having high activity and does not produce by-products which can inhibit catalyst activity. This new synthesis is a clean reaction which does not produce a Lewis base. The process generates active catalysts by removing a methyl anion from a group IVB metallocene derivative.

    摘要翻译: 本发明使用生产离子茂金属化合物的新方法。 这些化合物可用作烯烃聚合的催化剂,主要是丙烯。 该方法使用电离所述中性茂金属化合物的电离剂。 电离离子化合物不含有活性质子,并含有碳鎓,氧鎓或锍阳离子。 电离离子化合物的阴离子不配位或仅与金属茂阳离子松散配位,并且与金属茂阳离子化学反应。 这些化合物的实例是四(五氟苯基)硼酸三苯基碳鎓,三(五氟苯基)苯基硼酸三苯基碳鎓和三(五氟苯基)4-三甲基甲硅烷基-2,3,5,6-四氟苯基硼酸三苯基碳鎓。 用本发明制备催化剂的方法产生具有高活性且不产生可抑制催化剂活性的副产物的催化剂。 这种新的合成是不产生路易斯碱的干净的反应。 该方法通过从IVB族金属茂衍生物中除去甲基阴离子而产生活性催化剂。