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    Polyolefin Production
    2.
    发明申请
    Polyolefin Production 失效
    聚烯烃生产

    公开(公告)号：US20120271013A1

    公开(公告)日：2012-10-25

    申请号：US13533823

    申请日：2012-06-26

    申请人： Abbas Razavi ,  Liliana Peters

    发明人： Abbas Razavi ,  Liliana Peters

    IPC分类号： C08F10/14 ,  C08F4/76

    CPC分类号： C08F110/02 ,  C08F4/65912 ,  C08F4/65916 ,  C08F210/16 ,  Y02P20/52 ,  C08F4/63927 ,  C08F2500/12 ,  C08F2500/17 ,  C08F2500/18 ,  C08F2500/07 ,  C08F210/14

    摘要： Use of a metallocene compound of general formula Ind2R″MQ2 as a component of a catalyst system in producing polyethylene, wherein each Ind is the same or different and is indenyl or substituted indenyl; R″ is a bridge which comprises a C1 to C4 alkylene radical, a dialkyl germanium or silicon or siloxane, alkyl phosphine or amine, which bridge is substituted or unsubstituted, M is a Group IV metal or vanadium and each Q is hydrocarbyl having 1 to 20 carbon atoms or halogen; and the ratio of meso to racemic forms of the metallocene in the catalyst system is at least 1:3. The metallocene may be supported. The ethylene may be polymerized in a reaction medium that is substantially free of any external comonomer, with comonomer being formed in situ. The produced polyethylene may have long chain branching. The produced polyethylene may be atactic.

    摘要翻译： 在制备聚乙烯中使用通式为Ind2R“MQ2的茂金属化合物作为催化剂体系的组分，其中每个Ind相同或不同，为茚基或取代的茚基; R“是桥，其包含C1至C4亚烷基，二烷基锗或硅或硅氧烷，烷基膦或胺，桥是取代或未取代的，M为第IV族金属或钒，并且每个Q为具有1至 20个碳原子或卤素; 并且催化剂体系中金属茂的内消旋与外消旋形式的比例至少为1:3。 金属茂可以被支撑。 乙烯可以在基本上不含任何外部共聚单体的反应介质中聚合，共聚单体原位形成。 生产的聚乙烯可以具有长链支化。 生产的聚乙烯可能是无规的。

    Process for the preparation of polyolefins
    4.
    再颁专利
    Process for the preparation of polyolefins 有权
    制备聚烯烃的方法

    公开(公告)号：USRE39156E1

    公开(公告)日：2006-07-04

    申请号：US09488037

    申请日：2000-01-19

    申请人： Andreas Winter ,  Martin Antberg ,  Bernd Bachmann ,  Volker Dolle ,  Frank Küber ,  Jürgen Rohrmann ,  Walter Spaleck

    发明人： Andreas Winter ,  Martin Antberg ,  Bernd Bachmann ,  Volker Dolle ,  Frank Küber ,  Jürgen Rohrmann ,  Walter Spaleck

    IPC分类号： C07F17/00 ,  C08F4/642 ,  B01J31/00

    CPC分类号： C08F297/083 ,  C07F17/00 ,  C08F4/63912 ,  C08F4/63916 ,  C08F4/63927 ,  C08F10/00 ,  C08F110/06 ,  C08F2500/15 ,  C08F2500/03 ,  C08F2500/17 ,  C08F2500/12

    摘要： A process for the preparation of an olefin polymer by polymerization or copolymerization of an olefin of the formula Ra—CH═CH—Rb, in which Ra and Rb are identical or different and are a hydrogen atom or a hydrocarbon radical having 1 to 14 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., at a pressure of from 0.5 to 100 bar, in solution, in suspension or in the gas phase, in the presence of a catalyst formed from a metallocene in the meso-form or a meso:rac mixture, with meso:rac>1:99, as transition-metal compound and a cocatalyst, wherein the metallocene is a compound of the formula I, in which M1 is Zr or Hf, R1 and R2 are identical or different and are methyl or chlorine, R3 and R6 are identical or different and are methyl, isopropyl, phenyl, ethyl or trifluoromethyl, R4 and R5 are hydrogen or as defined for R3 and R6, or R4 forms an aliphatic or aromatic ring with R6, or adjacent radicals R4 form a ring of this type, and R7 is a radical, and m plus n is zero or 1.

    摘要翻译： 一种制备烯烃聚合物的方法，该方法是通过使式R a -O-CH-CH-R b的烯烃聚合或共聚制备烯烃聚合物，其中R a R 1和R 2彼此相同或不同，是氢原子或具有1至14个碳原子的烃基或R a a和R b， / SUP>与连接它们的原子一起可以在-60°至200℃的温度下，在0.5至100巴的压力下，在溶液中，悬浮液中或在气相中形成环 在由外消旋混合物中内消旋的茂金属形成的催化剂存在下，外消旋体>外消旋体> 1:99，作为过渡金属化合物和助催化剂，其中金属茂是式 I，其中M 1是Zr或Hf，R 1和R 2相同或不同，是甲基或氯，R SUP > 3和R 6相同或不同，为甲基，异丙基，苯基，乙基或三氟甲基，R 4和 R 5是氢或根据R 3和R 6定义，R 6或R 4还可以是脂族或芳族的 与R 6相连，或相邻基团R 4形成这种环，R 7是一个基团，m + n是 零或1。

    Method for varying the melting points and molecular weights of polyolefins using metallocene catalyst systems
    5.
    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。

    Metallocenes with ferrocenyl-substituted bridges used in olefin polymerization
    8.
    发明授权
    Metallocenes with ferrocenyl-substituted bridges used in olefin polymerization 失效
    用于烯烃聚合的二茂铁基取代的桥接金属茂

    公开(公告)号：US06239299B1

    公开(公告)日：2001-05-29

    申请号：US09509214

    申请日：2000-03-24

    申请人： Herwig Schottenberger ,  Ingo Wartusch ,  Eberhard Ernst ,  Jens Reussner

    发明人： Herwig Schottenberger ,  Ingo Wartusch ,  Eberhard Ernst ,  Jens Reussner

    IPC分类号： C07F1700

    CPC分类号： C07F17/00 ,  C08F4/63912 ,  C08F10/00 ,  Y10S526/943 ,  C08F4/63927

    摘要： The invention relates to metallocenes of formula (I), in which M is a metal from the Ti, Zr, Hf, V, Nb, Ta group or an element from the lanthanide group, X1 and X2 stand for an alkyl-, aryl-, alkenyl-, arylalkyl-, alkylaryl- or arylalkenyl group and L1 and L2 are hydrocarbon capable of forming a sandwich structure with M. R stands for C, Si, Ge or Sn, A and B are ferrocenyl-substituted radicals, or B is optionally a radical X1 of X2. The metallocenes are preferably used as catalysts in the polymerization of olefins.

    摘要翻译： 本发明涉及式（I）的金属茂，其中M是来自Ti，Zr，Hf，V，Nb，Ta基团的金属或来自镧系元素的元素，X 1和X 2表示烷基， ，烯基 - ，芳基烷基 - ，烷基芳基 - 或芳基烯基，L1和L2是能够形成夹心结构的烃，其中R表示C，Si，Ge或Sn，A和B是二茂铁基取代的基团，或B是 可选地，X 1的基团X 1。 金属茂优选用作烯烃聚合中的催化剂。