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    Process for activation of titanium and vanadium catalysts useful in ethylene polymerization
    21.
    发明授权
    Process for activation of titanium and vanadium catalysts useful in ethylene polymerization 失效

    公开(公告)号：US4670526A

    公开(公告)日：1987-06-02

    申请号：US833148

    申请日：1986-02-27

    申请人： Kevin J. Cann ,  David L. Miles ,  Frederick J. Karol

    发明人： Kevin J. Cann ,  David L. Miles ,  Frederick J. Karol

    IPC分类号： C08F4/62 ,  C08F4/60 ,  C08F4/639 ,  C08F4/64 ,  C08F10/00 ,  C08F10/02 ,  C08F4/68

    CPC分类号： C08F10/00

    摘要： A process for activating a titanium or vanadium compound and producing polyethylene comprising (i) dissolving a divalent magnesium halide and a Lewis acid having the formula R.sub.m A1X.sub.n or R.sub.m BX.sub.n wherein R is an alkyl or aromatic radical, each radical having 1 to 12 carbon atoms and each R being alike or different; X is a halogen atom; m is an integer from 0 to 3; n is an integer from 0 to 3; and m+n equals 3, in an excess of electron donor compound selected from the group consisting of alkyl esters of alkyl and aromatic carboxylic acids and alkyl and cycloalkyl ethers, each compound having 2 to 12 carbon atoms, in such a manner that a magnesium halide/Lewis acid/electron donor complex is formed; (ii) separating the complex from excess electron donor compound; and (iii) introducing (a) the complex, the titanium or vanadium compound, and a hydrocarbyl aluminum compound and (b) ethylene into a reactor in such a manner that the titanium or vanadium compound is activated and polyethylene is produced.

    Catalyst system and its use in olefin polymerization
    23.
    发明授权
    Catalyst system and its use in olefin polymerization 有权
    催化剂体系及其在烯烃聚合中的应用

    公开(公告)号：US06605563B1

    公开(公告)日：2003-08-12

    申请号：US10359933

    申请日：2003-02-06

    申请人： Sun-Chueh Kao ,  Jaimes Sher ,  Frederick J. Karol

    发明人： Sun-Chueh Kao ,  Jaimes Sher ,  Frederick J. Karol

    IPC分类号： C08F464

    CPC分类号： C08F210/16 ,  C08F4/65908 ,  C08F4/6592 ,  Y10S526/943 ,  C08F4/65912 ,  C08F210/14 ,  C08F2500/03

    摘要： A polymerization catalyst system and a method for preparing the catalyst system is disclosed. The catalyst system includes a bulky ligand metallocene catalyst compound, preferably containing a single cyclopentadienyl or substituted cyclopentadienyl-type ring system, a Group 13 element containing first modifier, and a cycloalkadiene second modifier. The present invention also provides a process for polymerizing olefin(s) utilizing the catalyst systems described herein.

    摘要翻译： 公开了聚合催化剂体系和制备催化剂体系的方法。 催化剂体系包括体积庞大的配位金属茂催化剂化合物，优选含有单个环戊二烯基或取代的环戊二烯基型环系，含有第13族元素的第一改性剂和环二烯二烯改性剂。 本发明还提供了利用本文所述的催化剂体系聚合烯烃的方法。

    Process for trimerization
    28.
    发明授权
    Process for trimerization 失效
    三聚过程

    公开(公告)号：US4777315A

    公开(公告)日：1988-10-11

    申请号：US55843

    申请日：1987-06-01

    申请人： Isaac J. Levine ,  Frederick J. Karol

    发明人： Isaac J. Levine ,  Frederick J. Karol

    IPC分类号： C07C2/30 ,  C07C2/24

    CPC分类号： C07C2/30 ,  C07C2531/14

    摘要： A process for the trimerization of an olefin selected from the group consisting of ethylene, propylene, 1-butene, and mixtures thereof comprising passing the olefin and carbon dioxide in contact with a catalyst comprising the reaction product of (i) a chromium compound, which will provide active catalytic species under trimerization conditions, and (ii) a hydrocarbyl aluminum hydrolyzed with about 0.7 to about 1.1 moles of water per mole of aluminum compound wherein the aluminum to chromium mole ratio is in the range of up to about 200 to one and the mole ratio of olefin to carbon dioxide is in the range of about 4 to about 3000 moles of olefin per mole of carbon dioxide.

    摘要翻译： 一种选自乙烯，丙烯，1-丁烯及其混合物的烯烃三聚的方法，包括使烯烃和二氧化碳与包含（i）铬化合物的反应产物的催化剂接触，所述反应产物 将在三聚条件下提供活性催化物质，和（ii）用约0.7至约1.1摩尔水/摩尔铝化合物水解的烃基铝，其中铝与铬的摩尔比在至多约200比1的范围内，以及 烯烃与二氧化碳的摩尔比在每摩尔二氧化碳约4至约3000摩尔烯烃的范围内。