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100 条记录 (耗时 0.062 秒)

    Polyethylene and process for production thereof
    73.
    发明授权
    Polyethylene and process for production thereof 有权
    聚乙烯及其生产方法

    公开(公告)号：US08507103B2

    公开(公告)日：2013-08-13

    申请号：US13452197

    申请日：2012-04-20

    申请人： Donna J. Crowther ,  David M. Fiscus

    发明人： Donna J. Crowther ,  David M. Fiscus

    IPC分类号： B32B27/32 ,  C08F210/02 ,  C08F4/6592 ,  C08F4/642

    CPC分类号： C08F297/08 ,  C08F4/65912 ,  C08F4/65916 ,  C08F4/65925 ,  C08F210/16 ,  C08J5/18 ,  C08J2323/08 ,  Y10T428/1345 ,  Y10T428/31938

    摘要： This invention relates to blown films produced from copolymer made by a process for polymerizing olefins in which the amount of trimethylaluminum in a methylalumoxane solution is adjusted to be from 1 to 25 mol %, prior to use as an activator, where the mol % trimethylaluminum is determined by 1H NMR of the solution prior to combination with any support. This invention also relates to a process for polymerizing olefins in which the amount of an unknown species present in a methylalumoxane solution is adjusted to be from 0.10 to 0.65 integration units prior to use as an activator, where the amount of the unknown species is determined by the 1H NMR spectra of the solution performed prior to combination with any support. Preferably, the methylalumoxane solution is present in a catalyst system also comprising a metallocene transition metal compound.

    摘要翻译： 本发明涉及由用于聚合烯烃的方法制备的共聚物制备的吹塑薄膜，其中在使用摩尔％三甲基铝为活化剂之前，将甲基铝氧烷溶液中的三甲基铝的量调节至1至25摩尔％ 在与任何载体组合之前通过溶液的1 H NMR测定。 本发明还涉及一种聚合烯烃的方法，其中存在于甲基铝氧烷溶液中的未知物质的量在使用前调节为0.10至0.65个整合单元作为活化剂，其中未知物质的量由 在与任何载体组合之前进行的溶液的1 H NMR光谱。 优选地，甲基铝氧烷溶液存在于还包含茂金属过渡金属化合物的催化剂体系中。

    Catalyst system and process for olefin polymerization
    74.
    发明授权
    Catalyst system and process for olefin polymerization 有权
    催化剂体系和烯烃聚合方法

    公开(公告)号：US07985816B2

    公开(公告)日：2011-07-26

    申请号：US12849351

    申请日：2010-08-03

    申请人： Donna J. Crowther ,  Peijun Jiang ,  George Rodriguez

    发明人： Donna J. Crowther ,  Peijun Jiang ,  George Rodriguez

    IPC分类号： C08F4/6592 ,  B01J31/22

    CPC分类号： C08F210/06 ,  B01J31/0239 ,  B01J31/146 ,  B01J31/1616 ,  B01J31/2295 ,  B01J2231/122 ,  B01J2531/48 ,  B01J2531/49 ,  C08F4/65912 ,  C08F4/65916 ,  C08F4/65927 ,  C08F10/06 ,  C08F110/06 ,  C08F210/16 ,  Y10S526/943 ,  C08F4/65908 ,  C08F2500/08 ,  C08F2500/20 ,  C08F2500/03 ,  C08F2500/17

    摘要： The present application relates to a new catalyst system for the polymerization of olefins, comprising a new ionic activator having the formula: [R1R2R3AH]+ [Y]−, wherein [Y]− is a non-coordinating anion (NCA), A is nitrogen or phosphorus, R1 and R2 are hydrocarbyl groups or heteroatom-containing hydrocarbyl groups and together form a first, 3- to 10-membered non-aromatic ring with A, wherein any number of adjacent ring members may optionally be members of at least one second, aromatic or aliphatic ring or aliphatic and/or aromatic ring system of two or more rings, wherein said at least one second ring or ring system is fused to said first ring, and wherein any atom of the first and/or at least one second ring or ring system is a carbon atom or a heteroatom and may be substituted independently by one or more substituents selected from the group consisting of a hydrogen atom, halogen atom, C1 to C10 alkyl, C5 to C15 aryl, C6 to C25 arylalkyl, and C6 to C25 alkylaryl, and R3 is a hydrogen atom or C1 to C10 alkyl, or R3 is a C1 to C10 alkylene group that connects to said first ring and/or to said at least one second ring or ring system. The present application also relates to a process for the polymerization of olefins, preferably propylene, using this and other catalyst systems, as well as to polymers made by said process.

    摘要翻译： 本申请涉及用于烯烃聚合的新型催化剂体系，其包含具有下式的新的离子活化剂：[R 1 R 2 R 3 AH] + [Y] - ，其中[Y] - 是非配位阴离子（NCA），A是 氮或磷，R 1和R 2是烃基或含杂原子的烃基，并且与A一起形成第一个3至10元非芳族环，其中任何数量的相邻环成员可以任选地是至少一个 第二个是两个或更多个环的芳族或脂族环或脂族和/或芳族环系，其中所述至少一个第二环或环系与所述第一环稠合，并且其中第一和/或至少一个 第二环或环系是碳原子或杂原子，并且可以被一个或多个选自氢原子，卤素原子，C 1至C 10烷基，C 5至C 15芳基，C 6至C 25芳烷基， 和C 6至C 25烷基芳基，R 3是氢 原子或C1至C10烷基，或R3是连接到所述第一环和/或所述至少一个第二环或环系统的C1至C10亚烷基。 本申请还涉及使用这种和其它催化剂体系以及通过所述方法制备的聚合物来聚合烯烃，优选丙烯的方法。

    Polymerization process
    80.
    发明授权
    Polymerization process 有权
    聚合过程

    公开(公告)号：US08754177B2

    公开(公告)日：2014-06-17

    申请号：US12637349

    申请日：2009-12-14

    申请人： Donna J. Crowther ,  John F. Szul

    发明人： Donna J. Crowther ,  John F. Szul

    IPC分类号： C08F4/653 ,  C08F4/642 ,  C08F4/6592 ,  C08F210/02

    CPC分类号： C08F10/00 ,  C08F4/65912 ,  C08F4/65927 ,  C08F210/16 ,  Y10S526/943 ,  C08F4/65904 ,  C08F210/08 ,  C08F2500/12

    摘要： The invention relates to a polymerization process, the polymerization process includes contacting a cyclic bridged metallocene catalyst represented by the following formula: LA(A)LBMQn wherein A is a divalent group bound to each of LA and LB; each of LA and LB are bound to M, and each Q is bound to M; LA and LB are independently selected from the group consisting of cyclopentadienyl ligands and substituted cyclopentadienyl ligands; A is a divalent bridging group comprising a heterocyclic ring comprising from 3 to 6 carbon atoms and one silyl, thus forming a 4 to 7 member divalent ring; M is a Group 4, 5, or 6 transition metal; Q is independently a halogen, a hydride, or a hydrocarbyl radical having from 1 to 20 carbon atoms; wherein n is 1 or 2; with an activator, and optionally a support, to form an activated catalyst and, subsequently, contacting the activated catalyst with ethylene and optionally, at least one C3-C8 alpha olefin comonomer.

    摘要翻译： 本发明涉及聚合方法，聚合方法包括使由下式表示的环状桥连金属茂催化剂：LA（A）LBMQn，其中A是与LA和LB各自结合的二价基团; LA和LB各自与M结合，每个Q与M相连; LA和LB独立地选自环戊二烯基配体和取代的环戊二烯基配体; A是包含含有3至6个碳原子的杂环和1个甲硅烷基的二价桥连基，从而形成4至7元的二价环; M是第4,5或6族过渡金属; Q独立地为卤素，氢化物或具有1至20个碳原子的烃基; 其中n为1或2; 与活化剂和任选的载体形成活化的催化剂，随后使活化的催化剂与乙烯和任选的至少一种C 3 -C 8α-烯烃共聚单体接触。