中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

31 records (took 0.024 seconds)

    Aluminum-based lewis acid cocatalysts for olefin polymerization
    2.
    发明授权
    Aluminum-based lewis acid cocatalysts for olefin polymerization 有权
    用于烯烃聚合的铝基路易斯酸助催化剂

    公开(公告)号：US06476166B1

    公开(公告)日：2002-11-05

    申请号：US09620687

    申请日：2000-07-20

    Applicant: Matthew W. Holtcamp ,  Ching-Tai Lue

    Inventor： Matthew W. Holtcamp ,  Ching-Tai Lue

    IPC: C08F1014

    CPC classification number: C08F210/16 ,  C08F4/65925 ,  C08F4/65927 ,  C08F10/00 ,  Y10S526/901 ,  Y10S526/943 ,  C08F4/65916 ,  C08F4/025 ,  C08F4/65912 ,  C08F210/14 ,  C08F2500/12 ,  C08F2500/03 ,  C08F4/642

    Abstract: This invention is directed to a process for the preparation of polyolefins from one or more olefinic monomers comprising combining said olefins under olefin polymerization conditions with an organometallic catalyst compound that is activated for olefin polymerization by reaction with at least one Lewis acid aluminum compound of the formula RnAl(ArHal)3−n, where “ArHal” is a halogenated aryl group, n=1 or 2, and R is a monoanionic group other than a halogenated aryl group. The invention also relates to a polymer produced using the process and to the polymer itself.

    Abstract translation: 本发明涉及从一种或多种烯烃单体制备聚烯烃的方法，包括在烯烃聚合条件下将所述烯烃与通过与至少一种式（I）的路易斯酸铝化合物反应而被活化用于烯烃聚合的有机金属催化剂化合物 RnAl（ArHal）3-n，其中“ArHal”是卤代芳基，n = 1或2，R是卤代芳基以外的单阴离子基团。 本发明还涉及使用该方法制备的聚合物和聚合物本身。

    Aluminum based lewis acid cocatalysts for olefin polymerization
    3.
    发明授权
    Aluminum based lewis acid cocatalysts for olefin polymerization 有权
    用于烯烃聚合的铝基路易斯酸助催化剂

    公开(公告)号：US6147174A

    公开(公告)日：2000-11-14

    申请号：US350521

    申请日：1999-07-09

    Applicant: Matthew W. Holtcamp ,  Ching-Tai Lue

    Inventor： Matthew W. Holtcamp ,  Ching-Tai Lue

    IPC: C08F4/02 ,  C08F4/602 ,  C08F4/6192 ,  C08F4/642 ,  C08F4/6592 ,  C08F10/00 ,  C08F210/16 ,  C08F4/44 ,  C07F5/06

    CPC classification number: C08F210/16 ,  C08F10/00 ,  C08F4/65925 ,  C08F4/65927 ,  Y10S526/901 ,  Y10S526/943

    Abstract: This invention is directed to a process for the preparation of polyolefins from one or more olefinic monomers comprising combining said olefins under olefin polymerization conditions with an organometallic catalyst compound that is activated for olefin polymerization by reaction with at least one Lewis acid aluminum compound of the formula R.sub.n Al(ArHal).sub.3-n, where "ArHal" is a halogenated aryl group, n=1 or 2, and R is a monoanionic group other than a halogenated aryl group. The invention also relates to a polymer produced using the process and to the polymer itself.

    Abstract translation: 本发明涉及从一种或多种烯烃单体制备聚烯烃的方法，包括在烯烃聚合条件下将所述烯烃与通过与至少一种式（I）的路易斯酸铝化合物反应而被活化用于烯烃聚合的有机金属催化剂化合物 RnAl（ArHal）3-n，其中“ArHal”是卤代芳基，n = 1或2，R是卤代芳基以外的单阴离子基团。 本发明还涉及使用该方法制备的聚合物和聚合物本身。

    Oxygen tailoring of polyethylene resins
    4.
    发明申请
    Oxygen tailoring of polyethylene resins 有权
    聚乙烯树脂氧气定制

    公开(公告)号：US20060038312A1

    公开(公告)日：2006-02-23

    申请号：US11176046

    申请日：2005-07-07

    Applicant: Dongming Li ,  Ching-Tai Lue

    Inventor： Dongming Li ,  Ching-Tai Lue

    IPC: B29C47/00

    CPC classification number: C08F8/00 ,  B29B9/06 ,  B29B9/12 ,  B29C47/0004 ,  B29C47/0023 ,  B29C47/1072 ,  B29K2023/06 ,  B29K2105/256 ,  C08F10/02

    Abstract: Methods of tailoring polyethylenes are contemplated utilizing 0.5 to 70 volume percent oxygen containing gases. The tailoring occurs in a melt-conveying zone of a mixer/extruder, and not in the feed or melting zones of a mixer/extruder. The effect of tailoring is to decrease the haze and/or increase the gloss of blown films made from the tailored polyethylenes compared to similar polyethylenes that are extruded/mixed in the substantial absence of oxygen or oxygen containing gases.

    Abstract translation: 考虑使用0.5至70体积％含氧气体来调节聚乙烯的方法。 剪切发生在混合器/挤出机的熔体输送区域中，而不是在混合器/挤出机的进料或熔融区域中。 与基本上不含氧气或含氧气体挤出/混合的类似聚乙烯相比，定制的效果是降低由定制的聚乙烯制成的吹塑薄膜的雾度和/或增加的光泽度。

    Metallocene catalysts and their use in polymerization processes
    7.
    发明授权
    Metallocene catalysts and their use in polymerization processes 有权
    茂金属催化剂及其在聚合工艺中的应用

    公开(公告)号：US08598287B2

    公开(公告)日：2013-12-03

    申请号：US12739308

    申请日：2008-10-09

    Applicant: Chi-I Kuo ,  Dongming Li ,  Ching-Tai Lue ,  Francis C. Rix ,  Mark G Goode ,  Daniel P. Zilker, Jr. ,  Tae Hoon Kwalk

    Inventor： Chi-I Kuo ,  Dongming Li ,  Ching-Tai Lue ,  Francis C. Rix ,  Mark G Goode ,  Daniel P. Zilker, Jr. ,  Tae Hoon Kwalk

    IPC: C08F4/6592 ,  C08F4/643 ,  C08L23/14

    CPC classification number: B01J31/2295 ,  B01J2531/48 ,  B01J2531/49 ,  C08F4/65912 ,  C08F4/65916 ,  C08F210/16 ,  C08F4/65925 ,  C08F4/65927

    Abstract: A process for polymerizing olefin(s) utilizing a cyclic bridged metallocene catalyst system to produce polymers with improved properties is provided. The catalyst system may include a cyclic bridged metallocene, LA(R′SiR′)LBZrQ2, activated by an activator, the activator comprising aluminoxane, a modified aluminoxane, or a mixture thereof, and supported by a support, where: LA and LB are independently an unsubstituted or a substituted cyclopentadienyl ligand bonded to Zr and defined by the formula (C5H4-dRd), where R is hydrogen, a hydrocarbyl substituent, a substituted hydrocarbyl substituent, or a heteroatom substituent, and where d is 0, 1, 2, 3 or 4; LA and LB are connected to one another with a cyclic silicon bridge, R′SiR′, where R′ are independently hydrocarbyl or substituted hydrocarbyl substituents that are connected with each other to form a silacycle ring; and each Q is a labile hydrocarbyl or a substituted hydrocarbyl ligand.

    Abstract translation: 提供了利用环状桥连金属茂催化剂体系聚合烯烃以制备具有改进性能的聚合物的方法。 催化剂体系可以包括由活化剂活化的环状桥连金属茂LA（R'SiR'）LBZrQ2，活化剂包括铝氧烷，改性铝氧烷或其混合物，并由载体支持，其中：LA和LB是 独立地是未取代的或取代的环戊二烯基配体，其与Zr键合并由式（C5H4-dRd）定义，其中R是氢，烃基取代基，取代的烃基取代基或杂原子取代基，其中d是0,1,2 ，3或4; LA和LB通过环硅桥R'SiR'彼此连接，其中R'独立地是彼此连接形成硅环的烃基或取代的烃基取代基; 并且每个Q是不稳定的烃基或取代的烃基配体。

Patent Agency Ranking