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1.发明授权Deactivation of catalysts of the Ziegler type used for the preparation of polyethylene in high pressure, high temperature processes 失效用于在高压，高温过程中制备聚乙烯的ZIEGLER型催化剂的脱除
公开(公告)号：US4105609A
公开(公告)日：1978-08-08
申请号：US661414
申请日：1976-02-25
摘要： The present invention relates to a process for the continuous polymerisation and copolymerisation of ethylene under a pressure higher than 500 bars and at temperatures higher than about 160.degree. C in the presence of a catalyst containing a derivative of a transition metal and an organic derivative of aluminium, wherein there is injected into the reaction mixture at the end of reaction at least one alkali metal salt or alkaline earth metal salt of a carboxylic acid, in an amount sufficient to bring about the deactivation of the catalyst, said salt being so chosen that its reaction products with the constituents of the catalyst remain in the polymer.
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公开(公告)号：US3969332A
公开(公告)日：1976-07-13
申请号：US499106
申请日：1974-08-20
CPC分类号： C08F10/00
摘要： A method for the polymerization or copolymerization of ethylene comprising polymerizing the ethylene at a pressure greater than 500 bars, at a temperature in the range 160.degree. to 280.degree.C and under conditions in which polymerization takes place in a single liquid phase, in the presence of a catalyst system comprisingA. an alkylsiloxalane derivative of the formula, ##EQU1## and B. a halogenated titanium compound of the titanium trichloride type, the Al/Ti ratio between the constituents being between 1 and 10.
摘要翻译： 一种用于乙烯聚合或共聚的方法，其包括在压力大于500巴的条件下，在160-280℃的温度和在单一液相中进行聚合的条件下聚合乙烯， 的催化剂体系，包括A.下式的烷基硅氧烷衍生物，R1R4 | R2-Si-O-Al（1）| R3R5和B.三氯化钛型卤化钛化合物，三元组成分之间的Al / Ti比 在1到10之间。
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公开(公告)号：US4621124A
公开(公告)日：1986-11-04
申请号：US775711
申请日：1985-09-16
CPC分类号： C08F10/02 , C08F4/022 , Y10S526/902 , Y10S526/904 , Y10S526/906 , Y10S526/919
摘要： A catalyst system for use in the polymerization of ethylene under high pressure and temperature containing an alkyl-aluminum or alkylsiloxalane activator and a compound of the formula:(TiCla) (MgCL.sub.2).sub.y (AlCl.sub.3)z (RMgCl).sub.bin whicha is from 2 to 3;y is 2 or more;z is from 0 to 1/3;b is from 0 to 1; andR is an aliphatic or aromatic hydrocarbon radical.
摘要翻译： 一种用于乙烯在高压和高温下聚合的催化剂体系，所述催化剂体系含有烷基铝或烷基硅油活化剂和式（TiCla）（MgCl 2）y（AlCl 3）z（RmgCl）b的化合物，其中a为 2至3; y为2以上; z为0〜1/3; b为0〜1; 并且R是脂族或芳族烃基。
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公开(公告)号：US4298717A
公开(公告)日：1981-11-03
申请号：US929952
申请日：1978-08-01
申请人： Jean-Pierre Machon
发明人： Jean-Pierre Machon
IPC分类号： C08F2/00 , C08F4/00 , C08F4/60 , C08F4/64 , C08F4/6592 , C08F10/00 , C08F10/02 , C08F110/02 , C08F2/02 , C08F2/06
CPC分类号： C08F110/02 , Y10S526/902
摘要： A process for polymerizing ethylene under high pressure and temperature in at least one reactor having at least one reaction zone. A catalyst system is used that comprises (a) an activator selected from trialkylaluminums, hologenodialkylaluminums, and alkylsiloxalanes, (b) a halogen compound of a transition metal of groups IV to VI A, and (c) a complexing agent that is injected into the reactor in such a manner that its concentration in the reactor may be adjusted independently from the concentration of (b). The complexing agent may be selected from silicone oils and from compounds having the formula X(OR).sub.n, wherein X is hydrogen or a metal, n is the valence of X, and R is an alkyl radical of up to 20 carbon atoms.
摘要翻译： 一种在具有至少一个反应区的至少一个反应器中在高压和高温下聚合乙烯的方法。 使用催化剂体系，其包含（a）选自三烷基铝，氢溴酸二烷基铝和烷基硅氧烷的活化剂，（b）IV至VIA族过渡金属的卤素化合物，和（c）注入 反应器，使得其在反应器中的浓度可以独立于（b）的浓度进行调节。 络合剂可以选自硅油和具有式X（OR）n的化合物，其中X是氢或金属，n是X的化合价，R是至多20个碳原子的烷基。
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公开(公告)号：US4755572A
公开(公告)日：1988-07-05
申请号：US932329
申请日：1986-11-19
CPC分类号： C08F10/02 , C08F10/00 , C08F2410/01
摘要： A process for the continuous manufacture of homopolymers of an ethylene monomer and copolymers of an ethylene monomer with at least one .alpha.-olefin containing 3 to 8 carbon atoms. The monomers and a catalytic system are introduced into a first stage reactor to form a reaction medium for polymerizing the monomers. During a first stage, when the polymerization is substantially complete, a first compound, which is capable of reducing a transition metal of the catalytic system, is introduced into the reaction medium.
摘要翻译： 连续制造乙烯单体的均聚物和乙烯单体与至少一种含有3-8个碳原子的α-烯烃的共聚物的方法。 将单体和催化体系引入第一阶段反应器以形成用于使单体聚合的反应介质。 在第一阶段，当聚合基本完成时，将能够还原催化体系的过渡金属的第一种化合物引入反应介质中。
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6.发明授权Modified copolymers of ethylene and .alpha.-olefins and a process for their preparation 失效乙烯和α-烯烃的改性共聚物及其制备方法
公开(公告)号：US4486579A
公开(公告)日：1984-12-04
申请号：US453701
申请日：1982-12-27
IPC分类号： C08L23/00 , C08F2/00 , C08F2/34 , C08F4/28 , C08F4/32 , C08F4/60 , C08F6/26 , C08F8/00 , C08F8/06 , C08F8/50 , C08F210/00 , C08F210/16 , C08K5/14 , C08L101/00 , C08F4/34
CPC分类号： C08F6/26 , C08F8/50 , C08F2800/20
摘要： A modified copolymer of ethylene and of at least one .alpha.-olefin having from 3 to 12 carbon atoms, comprising from 0.5 to 10 mole percent of units derived from the .alpha.-olefin, wherein the measured limiting viscosity of the copolymer is between 1.5 and 10 times the limiting viscosity of the copolymer calculated from the molecular weight distribution of the copolymer. Process for producing these copolymers employing at least one free-radical initiator.
摘要翻译： 乙烯和至少一种具有3至12个碳原子的α-烯烃的改性共聚物包含0.5-10摩尔％的衍生自α-烯烃的单元，其中所测量的共聚物的特性粘度为1.5-10 是由共聚物的分子量分布计算的共聚物的特性粘度。 使用至少一种自由基引发剂制备这些共聚物的方法。
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7.发明授权
公开(公告)号：US4105842A
公开(公告)日：1978-08-08
申请号：US780452
申请日：1977-03-23
申请人： Adrien Nicco , Jean-Pierre Machon
发明人： Adrien Nicco , Jean-Pierre Machon
IPC分类号： C08F2/00 , C08F2/34 , C08F6/00 , C08F6/06 , C08F10/00 , C08F10/02 , C08F2/02 , C08F4/34 , C08F4/64
摘要： Ethylene is polymerized, in the presence of hydrogen, at a temperature of 180.degree. to 340.degree. C and a pressure of 200 2,500 bars with a Ziegler catalyst in a stirred reactor having at least one first reaction zone and at least one second reaction zone. The reaction mixture is fed to a separator at a pressure of 80 to 400 bars. The improvement results from partially liquifying at least a part of the gas coming from the separator at a temperature of -50.degree. to +20.degree. C, releasing the pressure to a value of 10 to 60 bars, separating the partially liquified gas into a gas phase and a liquid phase, and recycling the gas phase to the second reaction zone and the liquid phase to the first reaction zone. The resulting polymer has a low melt index, a high polydispersity index, and superior physical properties compared to polymers prepared by conventional processes.
摘要翻译： 在具有至少一个第一反应区和至少一个第二反应区的搅拌反应器中，乙烯在氢的存在下，在180℃至340℃的温度和200-2,500巴的压力下，用齐格勒催化剂聚合。 将反应混合物以80至400巴的压力进料至分离器。 改进的结果是在-50℃〜+ 20℃的温度下部分地使来自分离器的气体的至少一部分液化，将压力释放到10〜60巴的值，将部分液化气体分离成气体 相和液相，并将气相再循环到第二反应区和液相至第一反应区。 与通过常规方法制备的聚合物相比，所得聚合物具有低熔体指数，高多分散指数和优异的物理性能。
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