公开(公告)号：US20240209124A1

公开(公告)日：2024-06-27

申请号：US18557110

申请日：2022-04-25

申请人： ExxonMobil Chemical Patents Inc.

发明人： Diwaker SINGH ,  Richard B. PANNELL ,  Timothy M. BOLLER ,  Gerardo CORONA ,  Fred D. EHRMAN ,  Charles J. HARLAN ,  Yan JIANG ,  Chi-l KUO ,  William A. LAMBERTI ,  Sateesh K. RAJPUT ,  Shayan KARIMIPOUR

IPC分类号： C08F2/34

CPC分类号： C08F2/34 ,  C08F2410/02 ,  C08F2410/05 ,  C08F2410/08

摘要： Processes for transitioning from a first catalyst to a second catalyst in a gas phase polymerization reactor. In some embodiments, the processes relate to transitioning from a metallocene catalyst to a Ziegler-Natta catalyst. In other embodiments, the processes relate to transitioning from a first Ziegler-Natta catalyst to a second Ziegler-Natta catalyst.

公开(公告)号：US20190119419A1

公开(公告)日：2019-04-25

申请号：US15739649

申请日：2016-06-23

申请人： BOREALIS AG

发明人： Alexandra Romina ALBUNIA ,  Ravindra TUPE ,  Victor SUMERIN ,  John JAMIESON ,  Jani AHO ,  Markku VAHTERI ,  Jarmo KELA ,  Renate ECKMAYR

IPC分类号： C08F210/16 ,  C08F110/02 ,  C08F2/00 ,  C08F2/14 ,  C08F2/34 ,  C08F4/02

CPC分类号： C08F210/16 ,  C08F2/001 ,  C08F2/14 ,  C08F2/34 ,  C08F4/022 ,  C08F110/02 ,  C08F2410/01 ,  C08F2410/05 ,  C08F2500/08 ,  C08F2500/12 ,  C08F2800/20 ,  C08L23/06 ,  C08L23/0815

摘要： A process for producing copolymers of ethylene and at least one alpha-olefin having from 4 to 10 carbon atoms in the presence of a solid Ziegler-Natta catalyst comprising of magnesium, titanium, halogen and an internal organic compound, the copolymer having a density of from 906 to 937 kg/m3 and a melt flow rate MFR21 measured at 190° C. under 21.6 kg load of from 3 to 150 g/10 min. The process includes the steps of (A) homopolymerising ethylene or copolymerising ethylene and a first alpha-olefin having from 4 to 10 carbon atoms in a first polymerisation stage in the presence of the polymerisation catalyst, hydrogen and optionally the first alpha-olefin; (B) copolymerising ethylene and a second alpha-olefin having from 4 to 10 carbon atoms in a second polymerisation stage in the presence of the first homo- or copolymer of ethylene and the Ziegler-Natta catalyst; and (C) recovering the polymer mixture.

公开(公告)号：US10023666B2

公开(公告)日：2018-07-17

申请号：US15377684

申请日：2016-12-13

申请人： Chevron Phillips Chemical Company LP

发明人： Jeff S. Lowell ,  Daniel M. Hasenberg

IPC分类号： C08F110/02 ,  C08F2/34 ,  C08F2/44 ,  C08F210/16

CPC分类号： C08F10/02 ,  C08F2400/02 ,  C08F2410/02 ,  C08F2410/05 ,  Y02P20/584 ,  C08F2/34 ,  C08F4/025 ,  C08F4/69 ,  C08F2/005 ,  C08F2/01

摘要： A method of transitioning from a first catalyst to a second catalyst in a gas phase fluidized bed reactor comprising continuously feeding the first catalyst and a recycle stream comprising olefin monomer to the reactor; wherein the monomer contacts the first catalyst in the fluidized bed and polymerizes; wherein the reactor is operating in condensing mode (withdrawing a gaseous stream comprising unreacted monomer from the reactor, cooling the gaseous stream to condense a portion thereof, and contacting the cooled gaseous stream with fresh monomer to form the recycle stream); and wherein a liquid phase of the recycle stream evaporates within the fluidized bed; discontinuing the first catalyst to the reactor while continuing to feed the recycle stream; maintaining the condensing mode in reactor at >3 wt. % liquid phase in recycle stream while no fresh catalyst is introduced to reactor; and introducing the second catalyst to the reactor operating in condensing mode.

公开(公告)号：US08609791B2

公开(公告)日：2013-12-17

申请号：US13514101

申请日：2010-12-17

申请人： Daan Dewachter ,  Martine Slawinski

发明人： Daan Dewachter ,  Martine Slawinski

IPC分类号： C08F2/00 ,  C08F4/00 ,  C08F110/02

CPC分类号： C08F10/02 ,  C08F110/02 ,  C08F210/16 ,  C08F2410/05 ,  C08F2/01

摘要： The present invention relates to a method for optimizing the sequential feeding of at least two ethylene polymerization catalysts to an ethylene polymerization reactor, comprising: transferring to a mixing vessel a first ethylene polymerization catalyst and a first diluent, decreasing the concentration of said first ethylene polymerization catalyst in said mixing vessel, transferring to said mixing vessel a second ethylene polymerization catalyst and a second diluent, progressively replacing said first ethylene polymerization catalyst by said second ethylene polymerization catalyst and said first diluent by said second diluent, increasing the concentration of said second ethylene polymerization catalyst in said mixing vessel, sequentially transferring said first ethylene polymerization catalyst and said second ethylene polymerization catalyst from said mixing vessel to an ethylene polymerization reactor.

摘要翻译： 本发明涉及一种用于优化至少两种乙烯聚合催化剂顺序进料到乙烯聚合反应器的方法，包括：将混合容器转移到第一乙烯聚合催化剂和第一稀释剂中，降低所述第一乙烯聚合的浓度 在所述混合容器中，将第二乙烯聚合催化剂和第二稀释剂转移到所述混合容器中，通过所述第二稀释剂逐渐用所述第二乙烯聚合催化剂和所述第一稀释剂代替所述第一乙烯聚合催化剂，增加所述第二乙烯的浓度 聚合催化剂，将所述第一乙烯聚合催化剂和所述第二乙烯聚合催化剂从所述混合容器依次转移到乙烯聚合反应器中。

公开(公告)号：US20130053528A1

公开(公告)日：2013-02-28

申请号：US13695387

申请日：2011-04-13

申请人： Jean-Louis Chamayou ,  Benoit Sibourd

发明人： Jean-Louis Chamayou ,  Benoit Sibourd

IPC分类号： C08F10/14

CPC分类号： C08F2/001 ,  B01J8/1872 ,  B01J2208/0061 ,  C08F210/16 ,  C08F2400/02 ,  C08F2410/05 ,  C08F210/08 ,  C08F2500/12 ,  C08F2500/07 ,  C08F210/14

摘要： The present invention relates to a process for the continuous transition between two ethylene copolymers containing a different comonomer. In particular, the present invention relates to a process for the continuous transition between two ethylene copolymers containing a different comonomer.

摘要翻译： 本发明涉及包含不同共聚单体的两种乙烯共聚物之间的连续过渡的方法。 特别地，本发明涉及包含不同共聚单体的两种乙烯共聚物之间的连续转变的方法。

公开(公告)号：US20110294957A1

公开(公告)日：2011-12-01

申请号：US13133803

申请日：2009-12-17

申请人： Gerhardus Meier ,  Shahram Mihan

发明人： Gerhardus Meier ,  Shahram Mihan

IPC分类号： C08F255/00 ,  C08F4/64 ,  C08F2/34 ,  C08F4/24

CPC分类号： C08F210/16 ,  C08F4/65912 ,  C08F4/65916 ,  C08F4/65925 ,  C08F10/00 ,  C08F2410/05 ,  C08F4/69 ,  C08F4/642 ,  C08F2/34 ,  C08F2/42 ,  C08F210/08 ,  C08F210/14 ,  C08F2500/12 ,  C08F2500/18 ,  C08F2500/07 ,  C08F4/7042 ,  C08F4/61904

摘要： A method for transitioning from a Ziegler-Natta to a Phillips catalyst system for the olefin polymerization reaction in one reactor, preferably a gas phase reactor, is described. The method comprises the steps of a) discontinuing a first olefin polymerization reaction performed in the presence of the Ziegler-Natta catalyst system; b) performing a second olefin polymerization reaction in the presence of a further catalyst system comprising catalyst components (A) and (B) producing, respectively, a first and a second polyolefin fraction, wherein the Mw of the first polyolefin fraction is less than the Mw of the second polyolefin fraction and the initial activity of catalyst component (A) exceeds the initial activity of catalyst component (B); and c) performing a third olefin polymerization reaction the presence of the Phillips catalyst system. Thanks to this method, there is no need to empty the reactor after each olefin polymerization reaction, and the transitioning time needed to attain the desired quality of the polyolefin obtained in each olefin polymerization reaction subsequent to the first one is sufficiently short to permit a quick and reliable change of production.

摘要翻译： 描述了在一个反应​​器，优选气相反应器中从齐格勒 - 纳塔过渡到用于烯烃聚合反应的菲利普斯催化剂体系的方法。 该方法包括以下步骤：a）停止在齐格勒 - 纳塔催化剂体系存在下进行的第一种烯烃聚合反应; b）在另外的催化剂体系存在下进行第二烯烃聚合反应，所述催化剂体系包含分别产生第一和第二聚烯烃部分的催化剂组分（A）和（B），其中第一聚烯烃部分的Mw小于 第二聚烯烃级分的Mw和催化剂组分（A）的初始活性超过催化剂组分（B）的初始活性; 和c）进行第三烯烃聚合反应的存在的菲利浦催化剂体系。 由于这种方法，在每个烯烃聚合反应之后不需要清空反应器，并且在第一个烯烃聚合反应之后获得的每个烯烃聚合反应中获得的聚烯烃所需的质量所需的转化时间足够短，以使快速 可靠的生产变更。

公开(公告)号：US20090062466A1

公开(公告)日：2009-03-05

申请号：US11718256

申请日：2004-11-30

申请人： Jinyong Dong ,  Jiguang Liu ,  Zhichao Han ,  Dujin Wang

发明人： Jinyong Dong ,  Jiguang Liu ,  Zhichao Han ,  Dujin Wang

IPC分类号： C08L23/08 ,  C08L23/12

CPC分类号： C08L23/0807 ,  C08F10/00 ,  C08F210/06 ,  C08F2410/05 ,  C08L23/0815 ,  C08L23/10 ,  C08L23/16 ,  C08L2314/02 ,  C08L2314/06 ,  C08F4/6545 ,  C08F4/65922 ,  C08L2666/06 ,  C08F210/18 ,  C08F236/00 ,  C08F210/16

摘要： The present invention belongs to the field of polyolefin alloy preparation, and particularly relates to a polyolefin composite material in good form with adjustable composition and performances, produced by controlling a composite catalyst composed of Zieglar-Natta catalyst and metallocene catalyst to be catalytic by stage in the olefin polymerization reaction. This material is composed of propylene polymer and ethylene copolymer which is obtained by copolymerizing ethylene with alpha olefin or diolefin, wherein: the molar content of alpha olefin or diolefin in the ethylene copolymer is 0%˜60%, and the ethylene copolymer is 3˜80% by weight of the polyolefin composite material; the polyolefin composite material is in particle form, and the ethylene copolymer has a molecular weight distribution of 1˜6 and a glass transition temperature of −80˜0° C.; and the ethylene copolymer produced in the reaction is dispersed homogeneously in the propylene polymer particles to form the polyolefin composite material.

摘要翻译： 本发明属于聚烯烃合金制备领域，特别涉及一种具有可调组合物和性能的良好形式的聚烯烃复合材料，其通过控制由齐格列塔 - 纳塔催化剂和茂金属催化剂组成的复合催化剂在催化阶段 烯烃聚合反应。 该材料由丙烯聚合物和乙烯共聚物组成，其通过乙烯与α-烯烃或二烯烃共聚获得，其中：乙烯共聚物中α-烯烃或二烯烃的摩尔含量为0％〜60％，乙烯共聚物为3〜 80重量％的聚烯烃复合材料; 聚烯烃复合材料为颗粒形式，乙烯共聚物的分子量分布为1〜6，玻璃化转变温度为-80〜0℃。 并且在反应中制备的乙烯共聚物均匀地分散在丙烯聚合物颗粒中以形成聚烯烃复合材料。

公开(公告)号：US20060160965A1

公开(公告)日：2006-07-20

申请号：US11312272

申请日：2005-12-20

申请人： Mark Goode ,  Kevin Cann ,  F. Hussein ,  Robert Santana ,  David Schutz ,  Agapios Agapiou

发明人： Mark Goode ,  Kevin Cann ,  F. Hussein ,  Robert Santana ,  David Schutz ,  Agapios Agapiou

IPC分类号： C08F2/38

CPC分类号： C08F10/02 ,  C08F210/16 ,  C08F2410/05 ,  Y10S526/901 ,  C08F2/34 ,  C08F2/42 ,  C08F210/14 ,  C08F2500/12 ,  C08F2500/07 ,  C08F2500/18 ,  C08F210/08

摘要： Embodiments of our invention relate to processes for transitioning among polymerization catalyst systems including processes for transitioning among olefin polymerization reactions using Ziegler-Natta catalysts systems and chromium-based catalyst systems. Among embodiments contemplated are a method of transitioning from a first catalyst to a second catalyst in an olefin polymerization reactor, comprising: adding to the reactor a deactivating agent (DA) selected from one of carbon monoxide, carbon dioxide, or combinations thereof; adding to the reactor a cocatalyst adsorbing agent (CAA), comprising an inorganic oxide selected from one of silica, alumina or combinations thereof; wherein the first catalyst comprises at least one conventional Ziegler-Natta catalyst, and a cocatalyst, wherein the second catalyst comprises at least one chromium-based catalyst, wherein the reactor is a gas-phase, fluidized bed reactor, and wherein the CAA is substantially free of transition metals. In another embodiment a method of transitioning from a first catalyst to a second catalyst in an olefin polymerization reactor is contemplated, comprising: adding a transition aid agent (TAA) wherein the TAA is selected from one of alkoxylated amines, alkoxylated amides, or combinations thereof, wherein the first catalyst comprises at least one Ziegler-Natta catalyst comprising the catalyst, a cocatalyst and optionally a support, and the second catalyst comprises at least one chromium-based catalyst.

摘要翻译： 本发明的实施方案涉及在聚合催化剂体系中过渡的方法，包括使用齐格勒 - 纳塔催化剂体系和铬基催化剂体系在烯烃聚合反应中过渡的方法。 考虑的实施方案是在烯烃聚合反应器中从第一催化剂转变为第二催化剂的方法，包括：向反应器中加入选自一氧化碳，二氧化碳或其组合中的一种失活剂（DA）; 向所述反应器中加入选自二氧化硅，氧化铝或其组合的无机氧化物的助催化剂吸附剂（CAA）; 其中所述第一催化剂包含至少一种常规齐格勒 - 纳塔催化剂和助催化剂，其中所述第二催化剂包含至少一种铬基催化剂，其中所述反应器是气相流化床反应器，并且其中所述CAA基本上 没有过渡金属。 在另一个实施方案中考虑了在烯烃聚合反应器中从第一催化剂转变为第二催化剂的方法，包括：加入转移助剂（TAA），其中TAA选自烷氧基化胺，烷氧基化酰胺或其组合之一 ，其中所述第一催化剂包含至少一种齐格勒 - 纳塔催化剂，所述催化剂包含所述催化剂，助催化剂和任选的载体，所述第二催化剂包含至少一种铬基催化剂。

公开(公告)号：US20040242815A1

公开(公告)日：2004-12-02

申请号：US10482877

申请日：2004-01-06

发明人： Luigi Resconi ,  Giovanni Baruzzi

IPC分类号： C07F007/28 ,  C08F004/72

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％。

公开(公告)号：US20040181016A1

公开(公告)日：2004-09-16

申请号：US10715813

申请日：2003-11-18

发明人： Agapios Kyriacos Agapiou ,  Robert Olds Hagerty ,  F. David Hussein ,  Michael Elroy Muhle ,  Richard B. Pannell ,  Kathryn Ann Russell ,  Robert Lynn Santana ,  X. Simon Zhang

IPC分类号： C08F002/38

CPC分类号： C08F10/00 ,  C08F210/16 ,  C08F2410/05 ,  Y10S526/901 ,  C08F2/42 ,  C08F210/08 ,  C08F2500/24

摘要： Processes for transitioning among polymerization catalyst systems, preferably catalyst systems that are incompatible with each other. In particular, the processes relate to transitioning from olefin polymerizations utilizing metallocene catalyst systems to olefin polymerizations utilizing traditional Ziegler-Natta catalyst systems.

摘要翻译： 在聚合催化剂体系之间转化的方法，优选彼此不相容的催化剂体系。 特别地，该方法涉及使用茂金属催化剂体系从使用传统的齐格勒 - 纳塔催化剂体系的烯烃聚合转变为烯烃聚合。