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公开(公告)号：US09556291B2
公开(公告)日：2017-01-31
申请号：US15021561
申请日：2014-09-11
Applicant: W. R. Grace & Co.-Conn.
Inventor： Jan W. Van Egmond , Daniel J. Chismar , Jeffrey D. Goad
IPC: C08F2/00 , C08F210/00 , C08F110/06 , C08F2/34
CPC classification number: C08F110/06 , C08F2/34 , C08F10/06 , C08F210/06 , C08F210/16
Abstract: The present disclosure is directed to a process for producing olefin-based polymer in a gas phase polymerization reactor. The process includes forming a wet zone in the gas phase polymerization reactor. The wet zone is formed by maintaining a temperature less than or equal to the fluidizing medium dew point temperature+2° C. in a region of the reactor. The region is defined as the region extending from the distributor plate to 2.5 meters above the distributor plate. Injection of a high activity catalyst composition in the wet zone produces olefin-based having a settled bulk density greater than 23.5 lb/ft3.
Abstract translation: 本公开涉及在气相聚合反应器中制备烯烃基聚合物的方法。 该方法包括在气相聚合反应器中形成湿区。 通过在反应器的区域中保持小于或等于流化介质露点温度+ 2℃的温度来形成湿区。 该区域被定义为从分配器板延伸到分配板上方2.5米的区域。 在湿区中注入高活性催化剂组合物产生具有大于23.5lb / ft 3的沉降堆积密度的烯烃基。
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公开(公告)号：US10336840B2
公开(公告)日：2019-07-02
申请号：US15030786
申请日：2014-10-28
Applicant: W. R. Grace & Co.-Conn.
Inventor： Chai-Jing Chou , Daniel W. Baugh, III , John Kaarto , Jan W. Van Egmond , Jeffrey D. Goad , William G. Sheard
IPC: C08F210/06 , F16L11/06 , F16L11/12 , F16L9/127
Abstract: A composition is provided which comprises a propylene ethylene random copolymer having a melt flow rate (MFR) (as determined according to ASTM D1238, 230° C., 2.16 Kg) of less than 1 g/10 min, a xylene solubles content of less than 7% by weight, an ethylene content of from 3 to 5 percent by weight of the copolymer, and a value equal to or greater than 92 for the product of the Koenig B value times the % mm triads measured on the xylene insoluble fraction of the random copolymer obtained by the wet method. Pipes made from the composition demonstrate improved pressure endurance.
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公开(公告)号：US11104749B2
公开(公告)日：2021-08-31
申请号：US16332009
申请日：2017-09-11
Applicant: W. R. GRACE & CO.-CONN.
Inventor： Jan W. Van Egmond , Jeffrey D. Goad , John K. Kaarto , Daniel J. Chismar
Abstract: A process comprising polymerizing olefin monomers and optionally comonomers in a first reactor vessel, thereby forming a raw product stream comprising polymerized solids, unreacted monomer and optionally comonomer, the polymerized solids comprising olefin polymer, volatile organic compounds (VOC) and catalyst system. Then the polymerized solids are contacted with a catalyst poison selected from carbon monoxide, carbon dioxide, oxygen, water, alcohols, amines, or mixtures thereof, thereby forming a passivated stream. The passivated stream is maintained in an agitated state within a second reactor. The passivated stream within the second reactor is then contacted with a circulating gas comprising unreacted monomer for a residence time, thereby reducing the concentration of VOC in the polymerized solids by at least 10 wt % compared to the level before entering the second reactor, thereby forming a purified olefin polymer solids stream.
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公开(公告)号：US10093759B2
公开(公告)日：2018-10-09
申请号：US15035985
申请日：2014-11-21
Applicant: W. R. Grace & Co.-Conn.
Inventor： Ping Cai , Matthew J. Fedec , Jeffrey D. Goad , Jan W. Van Egmond , Chai-Jing Chou
IPC: C08F210/06
Abstract: A gas-phase process for making a propylene-based polymer in a fluidized-bed reactor, the reactor containing a fluidized bed including polymer product particles and a catalyst, the process having a set of quantitative criteria for maximum monomer partial pressure, maximum reactor temperature, and comonomer content(s) in the propylene-based polymer. The propylene-based polymer may be EBPT or BPRCP. The catalyst may include a catalyst/donor system comprising (1) a supported Ziegler-Natta pro-catalyst, (2) a co-catalyst, and (3) a mixed external electron donor system including (a) an activity limiting agent including at least one carboxylate ester functional group, and (b) a selectivity control agent.
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公开(公告)号：US09663647B2
公开(公告)日：2017-05-30
申请号：US15035980
申请日：2014-11-26
Applicant: W. R. Grace & Co.-Conn.
Inventor： Jan W. Van Egmond , Jeffrey D. Goad
CPC classification number: C08L23/14 , C08F10/06 , C08F2400/02 , C08L23/12 , C08L2205/02 , C08L2205/025 , C08L2207/02 , C08L2308/00 , C08L2314/02 , C08F4/651 , C08F4/6494 , C08F4/6465 , C08F110/06 , C08F2500/12 , C08F210/06 , C08F210/16 , C08L23/16 , C08F2/001
Abstract: A process for producing a propylene impact copolymer (ICOP), the process comprising the steps of feeding propylene and optionally one or more first comonomers into a first reactor; feeding into the first reactor a catalyst mixture; contacting the propylene with the catalyst mixture under first polymerization conditions to form an active propylene-based polymer; transferring at least a portion of the first reactor contents to a second reactor; feeding additional activity limiting agent, additional selectivity control agent and, optionally additional cocatalyst and one or more second comonomers into the second reactor; and maintaining the second reactor at a second reactor temperature in a range that is sufficient to allow copolymerization to form the propylene impact copolymer (ICOP), wherein the second reactor temperature is below 70° C.
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Patent Agency Ranking
公开(公告)号：US20160289436A1
公开(公告)日：2016-10-06
申请号：US15035980
申请日：2014-11-26
Applicant: W. R. GRACE & CO.-CONN.
Inventor： Jan W. Van Egmond , Jeffrey D. Goad
IPC: C08L23/14
CPC classification number: C08L23/14 , C08F10/06 , C08F2400/02 , C08L23/12 , C08L2205/02 , C08L2205/025 , C08L2207/02 , C08L2308/00 , C08L2314/02 , C08F4/651 , C08F4/6494 , C08F4/6465 , C08F110/06 , C08F2500/12 , C08F210/06 , C08F210/16 , C08L23/16 , C08F2/001
Abstract: A process for producing a propylene impact copolymer (ICOP), the process comprising the steps of feeding propylene and optionally one or more first comonomers into a first reactor; feeding into the first reactor a catalyst mixture; contacting the propylene with the catalyst mixture under first polymerization conditions to form an active propylene-based polymer; transferring at least a portion of the first reactor contents to a second reactor; feeding additional activity limiting agent, additional selectivity control agent and, optionally additional cocatalyst and one or more second comonomers into the second reactor; and maintaining the second reactor at a second reactor temperature in a range that is sufficient to allow copolymerization to form the propylene impact copolymer (ICOP), wherein the second reactor temperature is below 70° C.
Abstract translation: 一种制备丙烯抗冲共聚物（ICOP）的方法，该方法包括以下步骤：将丙烯和任选的一种或多种第一共聚单体进料到第一反应器中; 向第一反应器中加入催化剂混合物; 在第一聚合条件下使丙烯与催化剂混合物接触以形成活性丙烯基聚合物; 将第一反应器内容物的至少一部分转移到第二反应器; 向第二反应器中加入另外的活性限制剂，另外的选择性控制剂和任选的另外的助催化剂和一种或多种第二共聚单体; 并将第二反应器保持在足以使共聚合形成丙烯抗冲共聚物（ICOP）的范围内的第二反应器温度，其中第二反应器温度低于70℃。
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公开(公告)号：US11578146B2
公开(公告)日：2023-02-14
申请号：US17381355
申请日：2021-07-21
Applicant: W. R. GRACE & CO.-CONN.
Inventor： Jan W. Van Egmond , Jeffrey D. Goad , John K. Kaarto , Daniel J. Chismar
Abstract: A process comprising polymerizing olefin monomers and optionally comonomers in a first reactor vessel, thereby forming a raw product stream comprising polymerized solids, unreacted monomer and optionally comonomer, the polymerized solids comprising olefin polymer, volatile organic compounds (VOC) and catalyst system. Then the polymerized solids are contacted with a catalyst poison selected from carbon monoxide, carbon dioxide, oxygen, water, alcohols, amines, or mixtures thereof, thereby forming a passivated stream. The passivated stream is maintained in an agitated state within a second reactor. The passivated stream within the second reactor is then contacted with a circulating gas comprising unreacted monomer for a residence time, thereby reducing the concentration of VOC in the polymerized solids by at least 10 wt % compared to the level before entering the second reactor, thereby forming a purified olefin polymer solids stream.
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公开(公告)号：US20160289357A1
公开(公告)日：2016-10-06
申请号：US15035985
申请日：2014-11-21
Applicant: W. R. GRACE & CO.-CONN.
Inventor： Ping Cai , Matthew J. Fedec , Jeffrey D. Goad , Jan W. Van Egmond , Chai-Jing Chou
IPC: C08F210/06
CPC classification number: C08F210/06 , C08F210/08 , C08F210/16 , C08F2/34 , C08F10/00 , C08F4/6494 , C08F4/6465
Abstract: A gas-phase process for making a propylene-based polymer in a fluidized-bed reactor, the reactor containing a fluidized bed including polymer product particles and a catalyst, the process having a set of quantitative criteria for maximum monomer partial pressure, maximum reactor temperature, and comonomer content(s) in the propylene-based polymer. The propylene-based polymer may be EBPT or BPRCP. The catalyst may include a catalyst/donor system comprising (1) a supported Ziegler-Natta pro-catalyst, (2) a co-catalyst, and (3) a mixed external electron donor system including (a) an activity limiting agent including at least one carboxylate ester functional group, and (b) a selectivity control agent.
Abstract translation: 一种用于在流化床反应器中制备丙烯基聚合物的气相方法，该反应器含有包含聚合物产物颗粒和催化剂的流化床，该方法具有一组用于最大单体分压，最大反应器温度的定量标准 ，和丙烯类聚合物中的共聚单体含量。 基于丙烯的聚合物可以是EBPT或BPRCP。 催化剂可以包括催化剂/给体系统，其包括（1）负载的齐格勒 - 纳塔催化剂，（2）助催化剂，和（3）混合的外部电子给体系统，其包含（a）活性限制剂， 至少一个羧酸酯官能团，和（b）选择性控制剂。
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公开(公告)号：US20160251462A1
公开(公告)日：2016-09-01
申请号：US15030786
申请日：2014-10-28
Applicant: W. R. Grace & Co.-Conn.
Inventor： Chai-Jing Chou , Daniel W. Baugh, III , John Kaarto , Jan W. Van Egmond , Jeffrey D. Goad , William G. Sheard
IPC: C08F210/06 , F16L11/06 , F16L11/12
CPC classification number: C08F210/06 , F16L9/127 , F16L11/06 , F16L11/125 , C08F210/16 , C08F2500/12 , C08F2500/15
Abstract: A composition is provided which comprises a propylene ethylene random copolymer having a melt flow rate (MFR) (as determined according to ASTM D1238, 230° C., 2.16 Kg) of less than 1 g/10 min, a xylene solubles content of less than 7% by weight, an ethylene content of from 3 to 5 percent by weight of the copolymer, and a value equal to or greater than 92 for the product of the Koenig B value times the % mm triads measured on the xylene insoluble fraction of the random copolymer obtained by the wet method. Pipes made from the composition demonstrate improved pressure endurance.
Abstract translation: 提供了一种组合物，其包含丙烯乙烯无规共聚物，其熔体流动速率（MFR）（根据ASTM D1238测定，230℃，2.16Kg）小于1g / 10分钟，二甲苯可溶物含量少 超过7重量％，乙烯含量为共聚物重量的3至5重量％，并且对于Koenig B值乘以在二甲苯不溶部分测量的％mm三单元组的乘积，等于或大于92的值 通过湿法获得的无规共聚物。 由该组合物制成的管道显示出改善的耐压性能。
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公开(公告)号：US20160229933A1
公开(公告)日：2016-08-11
申请号：US15021561
申请日：2014-09-11
Applicant: W. R. Grace & Co.-Conn.
Inventor： Jan W. Van Egmond , Daniel J. Chismar , Jeffrey D. Goad
IPC: C08F110/06
CPC classification number: C08F110/06 , C08F2/34 , C08F10/06 , C08F210/06 , C08F210/16
Abstract: The present disclosure is directed to a process for producing olefin-based polymer in a gas phase polymerization reactor. The process includes forming a wet zone in the gas phase polymerization reactor. The wet zone is formed by maintaining a temperature less than or equal to the fluidizing medium dew point temperature+2° C. in a region of the reactor. The region is defined as the region extending from the distributor plate to 2.5 meters above the distributor plate. Injection of a high activity catalyst composition in the wet zone produces olefin-based having a settled bulk density greater than 23.5 lb/ft3.
Abstract translation: 本公开涉及在气相聚合反应器中制备烯烃基聚合物的方法。 该方法包括在气相聚合反应器中形成湿区。 通过在反应器的区域中保持小于或等于流化介质露点温度+ 2℃的温度来形成湿区。 该区域被定义为从分配器板延伸到分配板上方2.5米的区域。 在湿区中注入高活性催化剂组合物产生具有大于23.5lb / ft 3的沉降堆积密度的烯烃基。
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