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49 条记录 (耗时 0.044 秒)

    Process for the purification of pentafluorophenyl boron compounds
    4.
    发明授权
    Process for the purification of pentafluorophenyl boron compounds 失效
    五氟苯基硼化合物的纯化方法

    公开(公告)号：US5959151A

    公开(公告)日：1999-09-28

    申请号：US58408

    申请日：1998-04-09

    申请人： John Y. Lee ,  Steven P. Diefenbach ,  John M. Power ,  Ronny W. Lin

    发明人： John Y. Lee ,  Steven P. Diefenbach ,  John M. Power ,  Ronny W. Lin

    IPC分类号： C07F5/02

    CPC分类号： C07F5/027

    摘要： One aspect of the invention is a process for purifying a pentafluorophenyl boron compound from a crude mixture comprised of the pentafluorophenyl boron compound and impurities, the impurities at least comprised of an ether and water, the process comprising: (a) mixing the crude mixture with an azeotropic organic solvent which (i) is capable of azeotrope formation with the water and (ii) has a boiling point above the boiling point of the ether; (b) distilling the resulting solution to remove at least a portion of the impurities; and (c) cooling the distilled solution so that a precipitate comprised of the pentafluorophenyl boron compound is formed. Processes are also described for producing pentafluorophenyl boron compounds which are particularly pure, dry and fine.

    摘要翻译： 本发明的一个方面是从由五氟苯基硼化合物和杂质构成的粗混合物中纯化五氟苯基硼化合物的方法，所述杂质至少由醚和水组成，所述方法包括：（a）将粗混合物与 （i）能够与水共沸形成的共沸有机溶剂，和（ii）沸点高于乙醚的沸点; （b）蒸馏所得溶液以除去至少一部分杂质; 和（c）冷却蒸馏溶液使得形成由五氟苯基硼化合物构成的沉淀物。 还描述了制备特别纯的，干燥的和细的五氟苯基硼化合物的方法。

    Clean generation of a fluoroaryl grignard reagent
    5.
    发明授权
    Clean generation of a fluoroaryl grignard reagent 失效
    清洁生成氟化芳基格氏试剂

    公开(公告)号：US06248265B1

    公开(公告)日：2001-06-19

    申请号：US09596146

    申请日：2000-06-16

    申请人： John Y. Lee ,  David W. Owens ,  Charles R. Everly ,  Ronny W. Lin ,  John M. Power ,  Steven P. Diefenbach ,  Niomi L. Krzystowczyk

    发明人： John Y. Lee ,  David W. Owens ,  Charles R. Everly ,  Ronny W. Lin ,  John M. Power ,  Steven P. Diefenbach ,  Niomi L. Krzystowczyk

    IPC分类号： C07F302

    CPC分类号： C07F5/027 ,  C07F3/02

    摘要： Fluoroaryl Grignard reagents are produced from a hydrocarbyl Grignard reagent and fluoroaromatic compounds via separate additions of different fluoroaromatic compounds, such that the conversion of hydrocarbyl Grignard reagent to the desired fluoroaryl Grignard reagent is essentially complete, and thus the reaction product is free or essentially free of agents that may negatively affect subsequent reactions. The fluoroaryl Grignard reagents may be further reacted with boron trihalides in order to obtain tris(fluoroaryl)boranes or tetrakis(fluoroaryl)borates.

    摘要翻译： 氟芳基格氏试剂由烃基格氏试剂和氟代芳族化合物通过分别添加不同的氟代芳族化合物制备，使得烃基格氏试剂转化为所需的氟代芳基格氏试剂基本上完全，因此反应产物是游离的或基本上不含 可能会对后续反应产生负面影响的药剂。 氟化芳基格氏试剂可以进一步与三卤化硼反应，以获得三（氟化芳基）硼烷或四（氟化芳基）硼酸盐。

    Catalyst activators, processes for making same, and use thereof in catalysts and polymerization of olefins
    7.
    发明授权
    Catalyst activators, processes for making same, and use thereof in catalysts and polymerization of olefins 有权
    催化剂活化剂，其制备方法及其在催化剂和烯烃聚合中的应用

    公开(公告)号：US07928172B2

    公开(公告)日：2011-04-19

    申请号：US12519254

    申请日：2007-12-04

    申请人： Lubin Luo ,  Katherine Wu ,  Steven P. Diefenbach

    发明人： Lubin Luo ,  Katherine Wu ,  Steven P. Diefenbach

    IPC分类号： C08F4/64 ,  C08F4/6592 ,  B01J31/14

    CPC分类号： C08F10/00 ,  C08F4/65925 ,  C08F210/16 ,  C08F4/65912 ,  C08F4/65916 ,  C08F210/14

    摘要： Compositions useful for activating catalysts for olefin polymerization are-provided. The compositions are derived from at least: a) compound derived from at least (i) carrier having at least one pair of hydrogen bonded hydroxyl groups, (ii) organoaluminum compound, and (iii) Lewis base, such that each of a majority of aluminum atoms in the organoaluminum compound forms chemical bonds with at least two oxygen atoms from the at least one pair of hydrogen bonded hydroxyl groups; and b) Bronsted acid, wherein the molar ratio of the Bronsted acid to the organoaluminum compound is less than or equal to about 2:1.

    摘要翻译： 提供用于活化烯烃聚合催化剂的组合物。 所述组合物至少衍生自：a）衍生自至少（i）具有至少一对氢键合羟基的载体的化合物，（ii）有机铝化合物和（iii）路易斯碱，使得大部分 有机铝化合物中的铝原子与至少一对键合氢键的至少两个氧原子形成化学键; 和b）布朗斯台德酸，其中布朗斯台德酸与有机铝化合物的摩尔比小于或等于约2:1。

    Catalyst Activators, Processes for Making Same, and Use Thereof in Catalysts and Polymerization of Olefins
    10.
    发明申请
    Catalyst Activators, Processes for Making Same, and Use Thereof in Catalysts and Polymerization of Olefins 审中-公开
    催化剂活化剂，其制备方法及其在催化剂中的用途和烯烃的聚合

    公开(公告)号：US20080300372A1

    公开(公告)日：2008-12-04

    申请号：US12158975

    申请日：2006-12-20

    申请人： Lubin Luo ,  Steven P. Diefenbach ,  Zhike Wang

    发明人： Lubin Luo ,  Steven P. Diefenbach ,  Zhike Wang

    IPC分类号： C08F4/00 ,  B01J31/02

    CPC分类号： C08F10/00 ,  C08F4/65916 ,  C08F4/65922 ,  C08F4/65912

    摘要： A composition useful for activating catalysts for olefin polymerization is provided. The composition is derived from at least: carrier; organoaluminoxy compound; component having at least one electron withdrawing group and at least one active proton; and Lewis base. Alternatively, the composition is derived from at least: carrier; organoaluminoxy compound; component having at least one electron withdrawing group and at least one active proton; and ionic compound having at least one active proton. Alternatively, the composition is derived from at least: carrier; organoaluminoxy compound; component having at least one electron donating group and at least one active proton; and, optionally, Lewis base. Alternatively, the composition is derived from at least: carrier; organoaluminoxy compound; component having at least one electron withdrawing group and at least one active proton; and component having at least one electron donating group and at least one active proton—and optionally, the composition comprises Lewis base.

    摘要翻译： 提供了可用于活化烯烃聚合催化剂的组合物。 该组合物至少衍生自：载体; 有机铝氧化合物 组分具有至少一个吸电子基团和至少一个活性质子; 和路易斯基地。 或者，组合物至少从载体衍生; 有机铝氧化合物 组分具有至少一个吸电子基团和至少一个活性质子; 和具有至少一个活性质子的离子化合物。 或者，组合物至少从载体衍生; 有机铝氧化合物 具有至少一个给电子基团和至少一个活性质子的组分; 和任选的路易斯碱。 或者，组合物至少从载体衍生; 有机铝氧化合物 组分具有至少一个吸电子基团和至少一个活性质子; 和具有至少一个给电子基团和至少一个活性质子的组分 - 以及任选的组合物包含路易斯碱。