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公开(公告)号：US5500397A
公开(公告)日：1996-03-19
申请号：US181283
申请日：1994-01-13
CPC分类号： C08F10/02
摘要： Solid catalyst component for the polymerization of ethylene including the product of the reaction between:1) the product obtained by reacting:1A) a halide, halogen alcoholate or alcoholate of titanium, vanadium or zirconium;1B) a small quantity of water, and optionally1C) a compound or composition capable of substituting, in compound 1A, one or more alkoxy groups with a halogen atom; and2) a complex having general formula:MgX.sub.2 .multidot.nAlRX.sub.2 .multidot.pAlX.sub.3where X is chlorine or bromine; R is a hydrocarbon radical containing from 1 to 20 carbon atoms; n is a number from 1 to 4; p is a number from 0 to 1, and n+p from 1 to 4;the catalyst component being in the form or particles having a diameter lower than or equal to 20 micrometers, and an average diameter lower than or equal to 10 micrometers.
摘要翻译： 用于乙烯聚合的固体催化剂组分包括以下反应产物：1）通过反应得到的产物：1A）卤化物，卤素醇化物或钛，钒或锆的醇化物; 1B）少量的水，和任选地1C）能够在化合物1A中用卤素原子取代一个或多个烷氧基的化合物或组合物; 和2）具有以下通式的络合物：MgX 2 x n AlR x 2 x p AlX 3其中X是氯或溴; R是含有1至20个碳原子的烃基; n是从1到4的数字; p是从0到1的数字，并且n + p从1到4; 催化剂组分为直径小于或等于20微米，平均直径小于或等于10微米的形式或颗粒。
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2.发明授权
公开(公告)号：US5922632A
公开(公告)日：1999-07-13
申请号：US936888
申请日：1997-09-25
CPC分类号： C08F10/00
摘要： Catalysts component of the (co)polymerization of alpha-olefins CH.sub.2 .dbd.CHR, wherein R is hydrogen or an alkyl radical having from 1 to 8 carbon atoms, comprising a product of the composition:VCL.sub.y.z(b)wherein (b) represents an organic compound selected from alkyl, aryl and acyl halides, y is a number higher than 2 and lower than 4, and preferably comprised between 2.5 and 3.5 and z is a number higher than zero and lower than or equal to 2, and preferably between 0.002 and 1. Components can be obtained as products of the reaction, carried out at temperatures higher than 10.degree. C., between VCl.sub.4 and the compound (b). Particularly preferred among compounds (b) are benzoyl chloride, p-methoxybenzoyl chloride and p-chloro benzoyl chloride. From the components of the invention, either supported or not, catalysts having high activity particularly useful for the production of ethylene polymers showing broad molecular weight distribution can be prepared.
摘要翻译： α-烯烃CH 2 = CHR（其中R为氢或具有1至8个碳原子的烷基）的（共）聚合的催化剂组分包含组成为VCLy.z（b）的产物，其中（b）表示 选自烷基，芳基和酰基卤的有机化合物，y为高于2且低于4的数，优选为2.5至3.5，z为高于零且小于或等于2的数，并且优选为 0.002和1.可以在VCl 4和化合物（b）之间，在高于10℃的温度下进行反应的产物。 化合物（b）中特别优选苯甲酰氯，对甲氧基苯甲酰氯和对氯苯甲酰氯。 从本发明的组分，无论是否负载，可以制备具有高活性的催化剂，特别可用于生产显示宽分子量分布的乙烯聚合物。
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公开(公告)号：US5532326A
公开(公告)日：1996-07-02
申请号：US341441
申请日：1994-11-14
CPC分类号： C08F210/02 , Y10S526/901
摘要： Process for preparing elastomeric copolymers of ethylene with .alpha.-olefins CH.sub.2 .dbd.CHR, optionally containing minor proportions of a diene, characterized by the use during the polymerization of a catalyst comprising the reaction product of:(I) a solid component comprising VCl.sub.3 supported on a magnesium dihalide in spherical or spheroidal shape, in active form;(II) an alkyaluminum compound;(III) optionally a halohydrocarbon.VCl.sub.3 is precipitated on said magnesium dihalide by heating VCl.sub.4 solutions in inert hydrocarbon solvents.
摘要翻译： 制备乙烯与α-烯烃CH2 = CHR的弹性体共聚物的方法，任选地含有少量的二烯，其特征在于在聚合催化剂期间使用的催化剂，其包含以下反应产物：（I）包含负载在 活性形式的球形或球状二卤化镁; （II）烷基铝化合物; （III）任选的卤代烃。 VCl 3通过在惰性烃溶剂中加热VCl 4溶液沉淀在所述二卤化镁上。
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