公开(公告)号：US6087459A

公开(公告)日：2000-07-11

申请号：US79425

申请日：1998-05-14

申请人： Nemesio D. Miro ,  Masatoshi Ohkura

发明人： Nemesio D. Miro ,  Masatoshi Ohkura

IPC分类号： C08F4/656 ,  C08F4/658 ,  C08F10/06 ,  C08F4/616

CPC分类号： C08F10/06

摘要： A method of forming a polymer that simultaneously provides an improved level of impact resistance and processability in which an .alpha.-olefin monomer is subjected to polymerization in the presence of a Ziegler-Natta catalyst system and a blend of electron donors including dicyclopentyldimethoxysilane (DCPMS) and propyltriethoxysilane (PTES). The polymer so formed will have a relationship between a first melt flow rate of a homopolymer formed by polymerizing an .alpha.-olefin monomer in the presence of a Ziegler-Natta catalyst system and a first electron donor (MFR (a)), and a second melt flow rate of a homopolymer formed polymerizing an .alpha.-olefin monomer in the presence of the Ziegler-Natta catalyst system and a second electron donor (MFR (b)), is defined by the equation:1.2.ltoreq.log [MFR(b)/MFR(a)].ltoreq.1.4

摘要翻译： 一种形成聚合物的方法，其在齐格勒 - 纳塔催化剂体系和包括二环戊基二甲氧基硅烷（DCPMS）和电子供体的共混物的同时提供改进的耐冲击性水平和加工性能，其中α-烯烃单体经受聚合反应 丙基三乙氧基硅烷（PTES）。 如此形成的聚合物将在齐格勒 - 纳塔催化剂体系和第一电子给体（MFR（a））的存在下通过聚合α-烯烃单体形成的均聚物的第一熔体流动速率和第二熔体流动速率之间的关系， 在齐格勒 - 纳塔催化剂体系和第二电子给体（MFR（b））存在下，在α-烯烃单体聚合中形成的均聚物的熔体流动速率由下式定义：1.2 [log ）/ MFR（a）]

公开(公告)号：US5034483A

公开(公告)日：1991-07-23

申请号：US520160

申请日：1990-05-07

申请人： Nemesio D. Miro ,  Thomas E. Nowlin

发明人： Nemesio D. Miro ,  Thomas E. Nowlin

IPC分类号： C08F10/00

CPC分类号： C08F10/00

摘要： Broad molecular weight distribution, and high molecular weight olefin polymers, are prepared by polymerizing at least one olefin in the presence of a vanadium--and a titanium-containing catalyst composition. A catalyst precursor is synthesized by contacting a solid, porous carrier sequentially with a metal or a compound of a metal of Group IIB of the Periodic Chart of the Elements, e.g., a zinc compound, a halogen-containing aluminum compound, a vanadium compound and a titanium compound. The precursor is then combined with a suitable co-catalyst and a halogenating agent to produce the catalyst composition used to polymerize olefins.

摘要翻译： 通过在钒和含钛催化剂组合物的存在下聚合至少一种烯烃制备宽分子量分布和高分子量烯烃聚合物。 通过使固体多孔载体与元素周期表IIB族金属的金属或化合物顺序接触来合成催化剂前体，例如锌化合物，含卤素的铝化合物，钒化合物和 钛化合物。 然后将前体与合适的助催化剂和卤化剂组合以产生用于聚合烯烃的催化剂组合物。

公开(公告)号：US4831000A

公开(公告)日：1989-05-16

申请号：US144821

申请日：1988-01-15

申请人： Nemesio D. Miro

发明人： Nemesio D. Miro

IPC分类号： C08F4/638 ,  C08F4/60 ,  C08F4/64 ,  C08F4/68 ,  C08F10/00 ,  C08F10/02 ,  C08F110/02 ,  C08F210/16

CPC分类号： C08F10/00 ,  C08F10/02 ,  C08F110/02 ,  C08F210/16

摘要： There is disclosed a catalyst composition for the polymerization of olefins, particularly alpha-olefins. The composition is prepared by synthesizing a catalyst precursor and then combining it with a conventional catalyst activator. The precursor is synthesized by: (a) contacting a solid, porous carrier with an aluminum compound; (b) contacting the resulting product with a mixture of vanadium and titanium compounds; (c) contacting the product with an ether; and, (d) pre-activating the product of step (c) with a mixture of a halogenating agent and an aluminum compound.The catalyst composition is used without a halogenating agent in the polymerization medium to produce narrow molecular weight distribution HDPE and LLDPE products, or with a halogenating agent in the polymerization medium to produce broad molecular weight distribution LLDPE and HDPE products.

公开(公告)号：US5300597A

公开(公告)日：1994-04-05

申请号：US17163

申请日：1993-02-12

申请人： Nemesio D. Miro

发明人： Nemesio D. Miro

IPC分类号： B01J31/02 ,  B01J31/12 ,  B01J31/14 ,  C08F4/63 ,  C08F4/656 ,  C08F10/00

CPC分类号： B01J31/124 ,  B01J31/0274 ,  B01J31/122 ,  C08F10/00

摘要： A method is disclosed for preparing an olefin polymerization catalyst of improved particle size from a solution of magnesium containing component and a transition metal containing component which is reacted with an organoaluminum halide compound. The improved particle size is provided by employing the organoaluminum halide compound in conjunction with a silicon compound, such as for example an alkyl silicate or a polysiloxane.

摘要翻译： 公开了一种从含镁组分和含过渡金属的组分的溶液中制备具有改进粒度的烯烃聚合催化剂的方法，其与有机铝卤化物反应。 通过使用有机铝卤化物与硅化合物（例如硅酸烷基酯或聚硅氧烷）结合提供改进的粒度。

公开(公告)号：US5238891A

公开(公告)日：1993-08-24

申请号：US366720

申请日：1989-06-15

申请人： Nemesio D. Miro

发明人： Nemesio D. Miro

IPC分类号： B01J31/02 ,  B01J31/12 ,  B01J31/14 ,  C08F4/63 ,  C08F4/656 ,  C08F10/00

CPC分类号： B01J31/124 ,  B01J31/0274 ,  B01J31/122 ,  C08F10/00

摘要： A method is disclosed for preparing an olefin polymerization catalyst of improved particle size from a solution of magnesium containing component and a transition metal containing component which is reacted with an organoaluminum halide compound. The improved particle size is provided by employing the organoaluminum halide compound in conjunction with a silicon compound, such as for example an alkyl silicate or a polysiloxane.

摘要翻译： 公开了一种从含镁组分和含过渡金属的组分的溶液中制备具有改进粒度的烯烃聚合催化剂的方法，其与有机铝卤化物反应。 通过使用有机铝卤化物与硅化合物（例如硅酸烷基酯或聚硅氧烷）结合提供改进的粒度。

公开(公告)号：US5075271A

公开(公告)日：1991-12-24

申请号：US609495

申请日：1990-11-05

申请人： Nemesio D. Miro

发明人： Nemesio D. Miro

IPC分类号： C08F4/685 ,  C08F10/00 ,  C08F10/02 ,  C08F110/02 ,  C08F210/16

CPC分类号： C08F10/02 ,  C08F10/00 ,  C08F110/02 ,  C08F210/16

摘要： There is disclosed a catalyst composition for the polymerization of olefins, particularly alpha-olefins. The composition is prepared by synthesizing a catalyst precursor and then combining it with a conventional catalyst activator. The precursor is synthesized by: (a) contacting a solid, porous carrier with an aluminum compound; (b) contacting the resulting product with a mixture of vanadium and titanium compounds; (c) contacting the product with an alkyl ether and (d) pre-activating the product of step (c) with a mixture of a halogenating agent and an aluminum compound.The catalyst composition is used without a halogenating agent in the polymerization medium to produce narrow molecular weight distribution HDPE and LLDPE products, or with a halogenating agent in the polymerization medium to produce broad molecular weight distribution LLDPE and HDPE products.

摘要翻译： 公开了用于烯烃聚合的催化剂组合物，特别是α-烯烃。 通过合成催化剂前体，然后将其与常规的催化剂活化剂组合来制备组合物。 前体是通过以下方法合成的：（a）使固体多孔载体与铝化合物接触; （b）使所得产物与钒和钛化合物的混合物接触; （c）使产物与烷基醚接触，和（d）用卤化剂和铝化合物的混合物预活化步骤（c）的产物。 催化剂组合物在聚合介质中不使用卤化剂使用，以在聚合介质中产生窄分子量分布HDPE和LLDPE产物，或与卤化剂一起产生宽分子量分布的LLDPE和HDPE产品。

公开(公告)号：US4866021A

公开(公告)日：1989-09-12

申请号：US144454

申请日：1988-01-15

申请人： Nemesio D. Miro ,  Thomas E. Nowlin

发明人： Nemesio D. Miro ,  Thomas E. Nowlin

IPC分类号： C08F4/658 ,  C08F4/60 ,  C08F4/64 ,  C08F4/68 ,  C08F10/00

CPC分类号： C08F10/00

摘要： Broad molecular weight distribution, and high molecular weight olefin polymers, are prepared by polymerizing at least one olefin in the presence of a vanadium - and a titanium-containing catalyst composition. A catalyst precursor is synthesized by contacting a solid, porous carrier sequentially with a metal or a compound of a metal of Group IIB of the Periodic Chart of the Elements, e.g., a zinc compound, a halogen-containing aluminum compound, a vanadium compound and a titanium compound. The precursor is then combined with a suitable co-catalyst and a halogenating agent to produce the catalyst composition used to polymerize olefins.

公开(公告)号：US4626519A

公开(公告)日：1986-12-02

申请号：US773164

申请日：1985-09-06

申请人： Nemesio D. Miro ,  Floyd E. Farha ,  Charles E. Capshew

发明人： Nemesio D. Miro ,  Floyd E. Farha ,  Charles E. Capshew

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

CPC分类号： C08F10/00

摘要： A highly active catalyst suitable for the polymerization of olefins and its use are disclosed, said catalyst being prepared by(1) co-comminuting an aluminum halide; at least one electron donor; a Group IVB-VIB transition metal compound; and a support base selected from the group consisting of the Group IIA and IIIA salts and the salts of the multivalent metals of the first transition series with the exception of copper to produce a coground solid;(2) extracting said coground solid with an organic liquid; and(3) separating the solid from the liquid under such conditions that at least 5 weight percent of the aluminum in the coground solid is removed.

公开(公告)号：US06566294B2

公开(公告)日：2003-05-20

申请号：US09745400

申请日：2000-12-21

申请人： Nemesio D. Miro

发明人： Nemesio D. Miro

IPC分类号： B01J3100

CPC分类号： C08F110/06 ,  C08F4/6465

摘要： The present invention provides a catalyst system and methods for polymerizing homopolymers or copolymers of olefins, preferably polypropylene and copolymers of polypropylene. The catalyst system includes a Ziegler-Natta or Ziegler-Natta-type catalysts in combination with a mixture of silane electron donors, preferably at least two electron donors, even more preferably three electron donors, selected from tetraethoxysilane, methylcyclohexyldimethoxysilane, propyltrimethoxysilane, propyltriethoxysilane, dimethyldimethoxysilane, methyltrimethoxysilane, dicyclopentyldimethoxysilane and mixtures thereof. The preferred silane electron donor is methylcyclohexyldimethoxysilane.

摘要翻译： 本发明提供催化剂体系和聚合烯烃均聚物或共聚物的方法，优选聚丙烯和聚丙烯共聚物。 催化剂体系包括齐格勒 - 纳塔或齐格勒 - 纳塔型催化剂与硅烷电子给体的混合物，优选至少两个电子给体，甚至更优选三个电子给体，其组合选自四乙氧基硅烷，甲基环己基二甲氧基硅烷，丙基三甲氧基硅烷，丙基三乙氧基硅烷，二甲基二甲氧基硅烷 甲基三甲氧基硅烷，二环戊基二甲氧基硅烷及其混合物。 优选的硅烷电子供体是甲基环己基二甲氧基硅烷。

公开(公告)号：US5518973A

公开(公告)日：1996-05-21

申请号：US137863

申请日：1993-10-15

申请人： Nemesio D. Miro ,  William M. Chien

发明人： Nemesio D. Miro ,  William M. Chien

IPC分类号： C08F10/00 ,  B01J31/00

CPC分类号： C08F10/00

摘要： A TiCl.sub.3 catalyst system is disclosed employing the electron donor, dicyclopentyldimethoxysilane ("DCPMS"). Additionally disclosed is a process for polymerizing olefins in the presence of a catalyst system employing a titanium trichloride catalyst, an alkylaluminum cocatalyst, and dicyclopentyldimethoxysilane is provided. The polymerization process comprises providing a prepolymerized titanium trichloride catalyst, and polymerizing an .alpha.-olefin in the presence of the prepolymerized catalyst, a trialkylaluminum co-catalyst and dicyclopentyldimethoxysilane. The catalyst system of the invention provides increased catalyst activity for a TiCl.sub.3 catalyst and a very broad polymer molecular weight distribution.

摘要翻译： 公开了使用电子给体 - 二环戊基二甲氧基硅烷（“DCPMS”）的TiCl 3催化剂体系。 另外公开了一种在使用三氯化钛催化剂，烷基铝助催化剂和二环戊基二甲氧基硅烷的催化剂体系存在下聚合烯烃的方法。 聚合方法包括提供预聚合的三氯化钛催化剂，并在预聚合的催化剂，三烷基铝助催化剂和二环戊基二甲氧基硅烷的存在下聚合α-烯烃。 本发明的催化剂体系提供了对TiCl 3催化剂的增加的催化剂活性和非常宽的聚合物分子量分布。