公开(公告)号：US10059784B2

公开(公告)日：2018-08-28

申请号：US15036365

申请日：2014-11-26

Applicant: W. R. Grace & Co.-Conn.

Inventor： Jan W. Van Egmond

IPC: C08F210/06

Abstract: Particles of a procatalyst composition having a particle size D50 from 19 microns to 30 microns. A polymerization process comprising halogenating, in the presence of a substituted phenylene aromatic diester, particles of a MagTi procatalyst precursor to form particles of a procatalyst composition having a particle size D50 from 19 microns to 30 microns; first contacting a propylene and optionally one or more first comonomers with a catalyst composition comprising the particles of the procatalyst composition in a first polymerization reactor to form an active propylene-based polymer; and second contacting the active propylene-based polymer with at least one second comonomer in a second polymerization reactor to form a propylene impact copolymer.

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。

公开(公告)号：US20160297906A1

公开(公告)日：2016-10-13

申请号：US15036365

申请日：2014-11-26

Applicant: W. R. GRACE & CO.-CONN.

Inventor： Jan W. Van Egmond

IPC: C08F210/06

CPC classification number: C08F210/06 ,  C08F2/001 ,  C08F4/651

Abstract: Particles of a procatalyst composition having a particle size D50 from 19 microns to 30 microns. A polymerization process comprising halogenating, in the presence of a substituted phenylene aromatic diester, particles of a MagTi procatalyst precursor to form particles of a procatalyst composition having a particle size D50 from 19 microns to 30 microns; first contacting a propylene and optionally one or more first comonomers with a catalyst composition comprising the particles of the procatalyst composition in a first polymerization reactor to form an active propylene-based polymer; and second contacting the active propylene-based polymer with at least one second comonomer in a second polymerization reactor to form a propylene impact copolymer.

Abstract translation: 具有19微米至30微米的粒度D50的主催化剂组合物的颗粒。 聚合方法包括在取代的亚苯基芳族二酯的存在下，将MagTi原催化剂前体的颗粒卤化以形成粒径D 50为19微米至30微米的前催化剂组合物的颗粒; 首先在第一聚合反应器中使丙烯和任选的一种或多种第一共聚单体与包含前催化剂组合物的颗粒的催化剂组合物接触以形成活性丙烯基聚合物; 以及在第二聚合反应器中使活性丙烯类聚合物与至少一种第二共聚单体接触，以形成丙烯抗冲共聚物。

公开(公告)号：US20160280812A1

公开(公告)日：2016-09-29

申请号：US15035649

申请日：2014-11-14

Applicant: W. R. GRACE & CO.-CONN

Inventor： John K Kaarto ,  Jan W. Van Egmond ,  Charles D. Lester

IPC: C08F10/06

CPC classification number: C08F10/06 ,  C08F2/34 ,  C08F2400/00 ,  C08F2500/03 ,  C08F2810/00 ,  C08F2810/10 ,  C08F110/06 ,  C08F4/6465 ,  C08F4/6494 ,  C08F2500/01 ,  C08F2500/12 ,  C08F2500/18

Abstract: The present disclosure provides a process for producing propylene-based polymer. The process includes contacting, under polymerization conditions in a gas phase polymerization reactor, propylene monomer and optionally one or more comonomers with a Ziegler-Natta catalyst composition. The process includes maintaining the temperature of a reaction zone of the reactor at a temperature from greater than 72° C. to less than or equal to 85° C., and forming a propylene-based polymer having a molecular weight (Mw) greater than 100,000, and a Mz+1/Mz less than 2.20. The resultant propylene-based polymer is advantageous in fiber applications.

Abstract translation: 本公开内容提供了一种生产基于丙烯的聚合物的方法。 该方法包括在气相聚合反应器中的聚合条件下使丙烯单体和任选的一种或多种共聚单体与齐格勒 - 纳塔催化剂组合物接触。 该方法包括将反应器的反应区的温度保持在大于72℃至小于或等于85℃的温度，并形成分子量（Mw）大于 100,000，Mz + 1 / Mz小于2.20。 得到的丙烯类聚合物在纤维应用中是有利的。

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.

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

IPC: C08F2/01 ,  C08F6/02 ,  C08F6/10 ,  C08F6/00 ,  B01J8/18 ,  B01J8/26

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.

公开(公告)号：US09908952B2

公开(公告)日：2018-03-06

申请号：US15035649

申请日：2014-11-14

Applicant: W. R. Grace & Co.-Conn.

Inventor： John K Kaarto ,  Jan W. Van Egmond ,  Charles D. Lester

IPC: C08F10/06 ,  C08F2/34

CPC classification number: C08F10/06 ,  C08F2/34 ,  C08F2400/00 ,  C08F2500/03 ,  C08F2810/00 ,  C08F2810/10 ,  C08F110/06 ,  C08F4/6465 ,  C08F4/6494 ,  C08F2500/01 ,  C08F2500/12 ,  C08F2500/18

Abstract: The present disclosure provides a process for producing propylene-based polymer. The process includes contacting, under polymerization conditions in a gas phase polymerization reactor, propylene monomer and optionally one or more comonomers with a Ziegler-Natta catalyst composition. The process includes maintaining the temperature of a reaction zone of the reactor at a temperature from greater than 72° C. to less than or equal to 85° C., and forming a propylene-based polymer having a molecular weight (Mw) greater than 100,000, and a Mz+1/Mz less than 2.20. The resultant propylene-based polymer is advantageous in fiber applications.

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。

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。

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。