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公开(公告)号：US06479609B1
公开(公告)日：2002-11-12
申请号：US09883514
申请日：2001-06-18
IPC分类号： C08F11002
CPC分类号： C08F10/00 , C08F4/65912 , C08F210/16 , C08F2410/05 , C08L23/0815 , C08L2308/00 , Y10S526/943 , C08F2/42 , C08F4/65927 , C08F2/001 , C08L2666/04 , C08F210/06 , C08F2500/17 , C08F2500/04 , C08F2500/01
摘要： A multi-stage process for preparing ethylene (co)polymers having broad molecular weight distributions is disclosed, said process comprising: (A) a first polymerization stage in which, in the presence of a Ti or V catalyst, a first ethylene polymer is prepared; (B) a treatment stage in which the catalyst used in the first stage is deactivated and in which a bridged bis-2-indenyl zirconocene is supported on the ethylene polymer produced in stage (A), optionally in the presence of a suitable cocatalyst; and (C) a second polymerization stage in which ethylene is polymerized in the presence of the product obtained from stage (B). Furthermore, polyethylene obtainable by the above process is disclosed, having intrinsic viscosity ranging from 0.5 to 6 dl/g, Mw/Mn>8 and cold xylene solubility
摘要翻译： 公开了一种用于制备具有宽分子量分布的乙烯（共））聚合物的多阶段方法，所述方法包括：（A）在Ti或V催化剂存在下制备第一乙烯聚合物的第一聚合阶段 ;（B）在第一阶段中使用的催化剂失活并且桥接的双-2-茚基二茂锆负载在阶段（A）中制备的乙烯聚合物上，任选地在合适的助催化剂存在下的处理阶段 ; 和（C）第二聚合阶段，其中乙烯在从阶段（B）获得的产物存在下聚合。此外，公开了通过上述方法获得的聚乙烯，其特性粘度范围为0.5至6dl / g，Mw / Mn> 8，冷二甲苯溶解度<1.2％
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公开(公告)号：US06262195B1
公开(公告)日：2001-07-17
申请号：US09265036
申请日：1999-03-09
IPC分类号： C08F442
CPC分类号： C08F10/00 , C08F4/65912 , C08F210/16 , C08F2410/05 , C08L23/0815 , C08L2308/00 , Y10S526/943 , C08F2/42 , C08F4/65927 , C08F2/001 , C08L2666/04 , C08F210/06 , C08F2500/17 , C08F2500/04 , C08F2500/01
摘要： A multi-stage process for preparing ethylene (co)polymers having broad molecular weight distributions is disclosed, said process comprising: (A) a first polymerization stage in which, in the presence of a Ti or V catalyst, a first ethylene polymer is prepared; (B) a treatment stage in which the catalyst used in the first stage is deactivated and in which a bridged bis-2-indenyl zirconocene is supported on the ethylene polymer produced in stage (A), optionally in the presence of a suitable cocatalyst; and (C) a second polymerization stage in which ethylene is polymerized in the presence of the product obtained from stage (B). Furthermore, polyethylene obtainable by the above process is disclosed, having intrinsic viscosity ranging from 0.5 to 6 dl/g, Mw/Mn>8 and cold xylene solubility
摘要翻译： 公开了一种用于制备具有宽分子量分布的乙烯（共））聚合物的多阶段方法，所述方法包括：（A）在Ti或V催化剂存在下制备第一乙烯聚合物的第一聚合阶段 ;（B）在第一阶段中使用的催化剂失活并且桥接的双-2-茚基二茂锆负载在阶段（A）中制备的乙烯聚合物上，任选地在合适的助催化剂存在下的处理阶段 ; 和（C）第二聚合阶段，其中乙烯在从阶段（B）获得的产物存在下聚合。此外，公开了通过上述方法获得的聚乙烯，其特性粘度范围为0.5至6dl / g，Mw / Mn> 8，冷二甲苯溶解度<1.2％
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公开(公告)号：US06716940B1
公开(公告)日：2004-04-06
申请号：US10070120
申请日：2002-02-28
IPC分类号： C08F442
CPC分类号： C08F10/00 , C08F4/6426
摘要： Catalyst system for the polymerization of olefins CH2═CHR, wherein R is hydrogen or a hydrocarbon radical having 1-12 carbon atoms, comprising the product of the reaction between (a) a solid catalyst component comprising Mg, Ti, and halogen, (b) dimethylaluminium chloride (DMAC) and (c) an alkylaluinium compound, in which the molar ratio between (b) and (c) is lower than 10. This kind of catalyst system is particularly suitable for the preparation of copolymers of ethylene with &agr;-olefins due to its high capacity for incorporating the comonomer while at the same time maintaining high yields.
摘要翻译： 用于烯烃CH 2 = CHR（其中R是氢或具有1-12个碳原子的烃基）聚合的催化剂体系包括（a）包含Mg，Ti和卤素的固体催化剂组分（b ）二甲基氯化铝（DMAC）和（c）（b）和（c）之间的摩尔比低于10的烷基铝化合物。这种催化剂体系特别适用于制备乙烯与α- 烯烃，因为它具有高的并入共聚单体的能力，同时保持高产率。
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公开(公告)号：US4129559A
公开(公告)日：1978-12-12
申请号：US626289
申请日：1975-10-28
摘要： Disclosed are reverse osmosis anisotropic gel-type membranes having the structure: ##STR1## WHEREIN N IS A WHOLE NUMBER; A is a divalent group derived from piperazine and having the structure: ##STR2## WHEREIN X IS 0 TO 8 AND R is an alkyl group, and Q is at least two divalent organic groups selected from the group consisting of: ##STR3## wherein Y is O or S, ##STR4## Also disclosed are processes for preparing such membranes.
摘要翻译： 公开了具有以下结构的反渗透各向异性凝胶型膜：（AQ）n WHEREIN N是全数; A是衍生自哌嗪的二价基团，其结构如下：其中X为0至8，R为烷基，Q为至少两个选自以下的二价有机基团：其中Y 是O或S，
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5.发明授权1,3-diethers and components and catalysts for the polymerization of olefins, containing said diethers 失效1,3-二醚和用于烯烃聚合的组分和催化剂，其含有所述二醚公开(公告)号：US07049377B1
公开(公告)日：2006-05-23
申请号：US08603497
申请日：1996-02-20
IPC分类号： C08F4/44
CPC分类号： C08F10/00 , C07C41/16 , C07C43/162 , C07C2601/10 , C07C2602/08 , C07C2603/18 , C07C2603/24 , C07C2603/28 , C07D311/82 , C07F7/081 , C08F110/06 , C08F4/651 , C08F4/6494 , C08F2500/12 , C08F2500/17
摘要： Cyclopolyenic 1,3-diethers wherein the carbon atom in position 2 belongs to a particular cyclic or polycyclic structure containing two or three unsaturations, solid catalyst components and catalysts therefrom, the catalysts comprising the reaction product of: i. a solid catalyst component containing an internal donor; ii. an Al-alkyl compound, and optionally iii. an external donor; the internal donor and/or the external donor being cyclopolyenic 1,3-diethers. The catalysts are useful for the polymerization of alpha-olefins.
摘要翻译： 其中位置2的碳原子属于特定的含有两个或三个不饱和的环状或多环结构的环多烯1,3-二醚，固体催化剂组分和催化剂，所述催化剂包含以下反应产物： 含有内给体的固体催化剂组分; ii。 烷基铝化合物，和任选的iii。 外部供体; 内给体和/或外供体是环多取代1,3-二醚。 该催化剂可用于α-烯烃的聚合。
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公开(公告)号：US20050049371A1
公开(公告)日：2005-03-03
申请号：US10497000
申请日：2002-11-22
IPC分类号： C08F2/34 , C08F4/02 , C08F4/642 , C08F4/659 , C08F4/6592 , C08F10/00 , C08F10/06 , C08F110/06 , C08F210/18 , C08L23/10 , C08L23/12 , C08L23/16 , C08F4/44
CPC分类号： C08F210/18 , C08F4/65912 , C08F4/65927 , C08F110/06 , C08L23/10 , C08L23/16 , C08L2203/14 , C08F4/65916 , C08F4/027 , C08L2666/06 , C08F2500/17 , C08F2500/18 , C08F2500/24 , C08F2500/20 , C08F210/06 , C08F232/00 , C08F2500/25 , C08F2500/21
摘要： A process for the preparation of heterophasic elastomeric polymer comprising the step of polymerizing ethylene, an alpha-olefin CH2=CHL, where L is an alkyl, cycloalkyl or aryl radical with 1-10 carbon atoms and a non-conjugated diene in the presence of a catalyst system comprising a transition metal catalyst component supported on a porous alpha-olefin polymer, characterized in that at least part of the diene is impregnated on the porous alpha-olefin polymer.
摘要翻译： 一种用于制备多相弹性体聚合物的方法，包括聚合乙烯，α-烯烃CH 2 = CHL的步骤，其中L是具有1-10个碳原子的烷基，环烷基或芳基和非共轭二烯，在存在 包含负载在多孔α-烯烃聚合物上的过渡金属催化剂组分的催化剂体系，其特征在于至少部分二烯浸渍在多孔α-烯烃聚合物上。
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公开(公告)号：US5902163A
公开(公告)日：1999-05-11
申请号：US854196
申请日：1997-05-09
摘要： A debris shedding buoy having a float body with a top and a bottom is provided. The buoy includes a slide rail, adapted for slidable engagement to a mooring line, is attached to the bottom of the float body. The slide rail is located in a generally centered position beneath the float body and is oriented in a first direction. A rudder device is affixed to the float body and adapted to produce a stabilizing force to maintain the float body in a quasi stable orientation with respect to a current direction, with the first direction being generally aligned to the current direction. Debris lodging against the float body overcomes the stabilizing force produced by the rudder device, causing the float body to rotate from the quasi stable orientation to a second orientation to shed the debris whereupon the float body rotates back to the quasi stable orientation.
摘要翻译： 提供具有顶部和底部的浮体的碎屑脱落浮标。 浮子包括适于滑动接合到系泊线的滑轨，附接到浮体的底部。 滑轨位于浮子体下方的大致中心位置并且沿第一方向定向。 方向舵装置固定在浮子体上并适于产生稳定力，以使浮体相对于电流方向保持在准稳定的方位，而第一方向大致与电流方向对准。 靠在浮体上的碎屑克服了由舵装置产生的稳定力，导致浮体从准稳定方向旋转到第二方位，从而使浮体转动回到准稳定方向。
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公开(公告)号：US5557025A
公开(公告)日：1996-09-17
申请号：US675229
申请日：1991-03-26
申请人： Luciano Noristi , Giovanni Baruzzi
发明人： Luciano Noristi , Giovanni Baruzzi
CPC分类号： C08F10/00
摘要： A process for preparing hyperpure propylene (co)polymers comprising polymerizing the monomer(s) in liquid monomer in the presence of a catalyst obtained by reacting an Al-trialkyl compound with a solid catalyst component comprising magnesium dihalide in active form, having supported thereon a titanium chloride or chloroalcoholate, and an ether having the general formula: ##STR1## where R and R" are the same or different and are C.sub.2-18 alkyl, C.sub.3-18 cycloalkyl, C.sub.6-18 aryl, C.sub.7-18 arylalkyl or alkylaryl radicals.
摘要翻译： 一种制备超纯丙烯（共）聚合物的方法，包括在通过使三烷基铝化合物与包含活性形式的二卤化镁的固体催化剂组分反应获得的催化剂存在下使液体单体聚合的单体，其上负载有 氯化钛或氯代醇化物，以及具有以下通式的醚：其中R和R“相同或不同，为C2-18烷基，C3-18环烷基，C6-18芳基，C7-18 芳基烷基或烷基芳基。
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9.发明授权Catalyst component and catalyst for the polymerization of alpha-olefins to stereoregular polymers having narrow molecular weight distribution 失效用于将α-烯烃聚合成具有窄分子量分布的立体规则聚合物的催化剂组分和催化剂
公开(公告)号：US4980329A
公开(公告)日：1990-12-25
申请号：US353223
申请日：1989-05-15
CPC分类号： C08F10/00
摘要： Disclosed is a component for a catalyst for the polymerization of alpha-olefins to stereoregular polymers having narrow molecular weight distribution. The product is formed by the reaction of a solid catalyst-forming component comprising (1) a Ti compound having at least one Ti-halogen bond and (2) optionally, an electron-donor compound, supported on an anhydrous Mg dihalide in active form, with certain amounts of an organic compound (AH) containing at least one active hydrogen atom, in the presence of a liquid medium which is inert with respect to the Ti compound and the other components of the catalyst component, and which has a dielectric constant greater than 2 at 20.degree. C.Catalysts comprising the reaction product of the solid catalyst component prepared as above described, with an Al-alkyl compound and an electron-donor compound are also disclosed.
摘要翻译： 公开了用于将α-烯烃聚合成具有窄分子量分布的立体规则聚合物的催化剂的组分。 该产物是由固体催化剂形成组分反应形成的，该组分包含（1）具有至少一个Ti-卤素键的Ti化合物和（2）任选的电子给体化合物，负载在活性形式的无水Mg二卤化物上 在一定量的含有至少一个活性氢原子的有机化合物（AH）的存在下，相对于Ti化合物和催化剂组分的其它组分是惰性的，并且具有介电常数 在20℃下大于2的催化剂也包括如上所述制备的固体催化剂组分与烷基铝化合物和电子给体化合物的反应产物。
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公开(公告)号：US07365137B2
公开(公告)日：2008-04-29
申请号：US10482877
申请日：2002-07-11
申请人： Luigi Resconi , Giovanni Baruzzi
发明人： Luigi Resconi , Giovanni Baruzzi
IPC分类号： C08F4/6592
CPC分类号： C08F110/06 , C08F4/65912 , C08F4/6592 , C08F10/00 , C08F210/16 , C08F2410/05 , C08L23/12 , C08L23/142 , C08L2205/02 , C08L2207/14 , C08L2308/00 , C08L2314/02 , C08L2314/04 , C08L2314/06 , C08F2/001 , C08F2/00 , C08L2666/04 , C08F2500/04 , C08F2500/15 , C08F2500/17 , C08F2500/20 , C08F210/08
摘要： A multistep process for the polymerization of one or more olefins comprising a first step of polymerizing one or more of said olefins in the presence of a catalyst of the Ziegler-Natta type, a step wherein the polymer obtained in the first step is contacted with a catalyst system comprising an half-sandwich metallocene compound, followed by a second polymerization step. The amount of homo- or copolymer of olefins produced in the first polymerization step is between 10% to 90% by weight of the total amount of polymer produced.
摘要翻译： 一种用于一种或多种烯烃的聚合的多步骤方法，包括在齐格勒 - 纳塔型催化剂存在下使一种或多种所述烯烃聚合的第一步骤，其中将第一步骤中获得的聚合物与 催化剂体系，其包含半夹心金属茂化合物，随后进行第二聚合步骤。 在第一聚合步骤中产生的烯烃的均聚物或共聚物的量为所生产的聚合物总量的10重量％至90重量％。
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