公开(公告)号：US20160206974A1

公开(公告)日：2016-07-21

申请号：US15086166

申请日：2016-03-31

Applicant: Dow Global Technologies LLC

Inventor： Curvel Hypolite ,  Alec Y. Wang

IPC: B01D17/02

CPC classification number: B01D17/0208 ,  B01D17/0214 ,  B01D17/12 ,  B01D35/1573 ,  C08F210/18 ,  G01F23/296 ,  G01N29/024 ,  G01N29/222 ,  G01N2291/0222 ,  G01N2291/0251 ,  G01N2291/051 ,  C08F210/06 ,  C08F236/20 ,  C08F2/01 ,  C08F2/06 ,  C08F2/14

Abstract: A system for detecting an interface between a polymer-rich phase and a solvent-rich phase comprising a liquid-liquid separator configured to receive a polymer solution as an inlet stream comprising solvent, polymer and unreacted monomer produced in a solvent-based polymerization reactor through an inlet feed, wherein a tank is configured to provide a residence time of at least 20 minutes and to permit the stream to separate into the polymer rich phase and the solvent rich phase; a first sonic transponder for sending a first sonic signal from either a top or bottom of the liquid-liquid separator and for receiving a first reflected portion of the sonic signal, the reflected portion of the sonic signal created by the passage of the sonic signal through a liquid-liquid interface between the solvent rich phase and the polymer rich phase, wherein the first sonic transponder is positioned such that it transmits the signal which travels perpendicularly to the liquid-liquid interface is provided.

Abstract translation: 一种用于检测富聚合相和富溶相之间的界面的系统，其包括液 - 液分离器，其被配置为接收作为入口流的聚合物溶液，所述溶剂，聚合物和未反应单体在溶剂基聚合反应器中产生， 入口进料，其中罐配置为提供至少20分钟的停留时间并允许流分离成富聚合相和富溶相; 用于从液 - 液分离器的顶部或底部发送第一声音信号并用于接收声音信号的第一反射部分的第一声波转发器，由声音信号通过的声音信号的反射部分通过 富溶相与富聚合相之间的液 - 液界面，其中第一声波转发器被定位成使得其透射垂直于液 - 液界面行进的信号。

公开(公告)号：US11608390B2

公开(公告)日：2023-03-21

申请号：US17059704

申请日：2019-05-30

Applicant: Dow Global Technologies LLC

Inventor： Maria Pollard ,  Robert D. Swindoll ,  Pradeep Jain ,  Alec Y. Wang ,  Jorge Rubalcaba ,  Shrikant Dhodapkar ,  Sean W. Ewart ,  Bradley K. Blanchard ,  George W. Haun, Jr. ,  Michael J. Zogg, Jr.

IPC: C08F2/01 ,  C08F2/06 ,  C08F6/00 ,  C08F6/10 ,  C08L23/08 ,  B01J19/24

Abstract: Disclosed herein is a system for solution polymerization comprising a reactor system that is operative to receive a monomer and to react the monomer to form a polymer; a plurality of devolatilization vessels located downstream of the reactor system, where each devolatilization vessel operates at a lower pressure than the preceding devolatilization vessel; and a heat exchanger disposed between two devolatilization vessels and in fluid communication with them, where the heat exchanger has an inlet port temperature of 100° C. to 230° C., an outlet port temperature of 200° C. to 300° C., an inlet port pressure of 35 to 250 kgf/cm2 and an outlet port pressure of 20 to 200 kgf/cm2; and wherein the polymer solution remains in a single phase during its residence in the heat exchanger.

公开(公告)号：US09327221B2

公开(公告)日：2016-05-03

申请号：US14391178

申请日：2013-03-14

Applicant: Dow Global Technologies LLC

Inventor： Curvel Hypolite ,  Alec Y. Wang

IPC: C08F6/12 ,  C08F2/04 ,  B01D35/157 ,  G01N29/024 ,  C08F210/18 ,  G01N29/22 ,  C08F210/16 ,  G01F23/296

CPC classification number: B01D17/0208 ,  B01D17/0214 ,  B01D17/12 ,  B01D35/1573 ,  C08F210/18 ,  G01F23/296 ,  G01N29/024 ,  G01N29/222 ,  G01N2291/0222 ,  G01N2291/0251 ,  G01N2291/051 ,  C08F210/06 ,  C08F236/20 ,  C08F2/01 ,  C08F2/06 ,  C08F2/14

Abstract: A system for detecting an interface between a polymer-rich phase and a solvent-rich phase comprising a liquid-liquid separator configured to receive a polymer solution as an inlet stream comprising solvent, polymer and unreacted monomer produced in a solvent-based polymerization reactor through an inlet feed, wherein a tank is configured to provide a residence time of at least 20 minutes and to permit the stream to separate into the polymer rich phase and the solvent rich phase; a first sonic transponder for sending a first sonic signal from either a top or bottom of the liquid-liquid separator and for receiving a first reflected portion of the sonic signal, the reflected portion of the sonic signal created by the passage of the sonic signal through a liquid-liquid interface between the solvent rich phase and the polymer rich phase, wherein the first sonic transponder is positioned such that it transmits the signal which travels perpendicularly to the liquid-liquid interface is provided.

Abstract translation: 一种用于检测富聚合相和富溶相之间的界面的系统，其包括液 - 液分离器，其被配置为接收作为入口流的聚合物溶液，所述溶剂，聚合物和未反应单体在溶剂基聚合反应器中产生， 入口进料，其中罐配置为提供至少20分钟的停留时间并允许流分离成富聚合相和富溶相; 用于从液 - 液分离器的顶部或底部发送第一声音信号并用于接收声音信号的第一反射部分的第一声波转发器，由声音信号通过的声音信号的反射部分通过 富溶相与富聚合相之间的液 - 液界面，其中第一声波转发器被定位成使得其透射垂直于液 - 液界面行进的信号。

公开(公告)号：US20150112005A1

公开(公告)日：2015-04-23

申请号：US14569956

申请日：2014-12-15

Applicant: Dow Global Technologies LLC

Inventor： Anthony J. Castelluccio ,  Jeffrey J. Dean ,  Alec Y. Wang ,  Lindsey A. Clark ,  Pradeep Jain ,  Roger L. Kuhlman ,  Angela N. Taha ,  Larry S. Green ,  Gary R. Marchand ,  Sean W. Ewart ,  Jeffrey A. Sims ,  Chris E. Blaschke ,  Brandon Fails

IPC: C08F210/14 ,  C08K5/17 ,  C08K5/52 ,  C08K5/098 ,  C08K5/12

CPC classification number: C08F210/14 ,  C08F6/02 ,  C08F210/16 ,  C08F297/08 ,  C08F297/083 ,  C08F2500/03 ,  C08F2500/08 ,  C08F2500/11 ,  C08F2500/12 ,  C08F2500/19 ,  C08F2500/20 ,  C08K5/098 ,  C08K5/12 ,  C08K5/17 ,  C08K5/52 ,  C08L23/0815 ,  C08L53/00 ,  C08L2666/02

Abstract: Improved reaction processes comprise reacting a mixture to form a product comprising a metal alkyl, metal oxide, or mixture thereof and then passing said product to a post-reactor heat exchanger. The improvement comprises one or more of the following: (1) reacting said metal alkyl compound with an acid to produce a soluble metal ester; or (2) adding an ionic surfactant; or (3) adding a mixture comprising an antioxidant to the product under conditions sufficient to avoid formation of significant amounts of insoluble metal or metal compounds derived from said metal alkyl compound; or (4) purging said post-reactor heat exchanger with an inert gas under conditions to remove metal oxide from the post-reactor heat exchanger.

Abstract translation: 改进的反应方法包括使混合物反应形成包含金属烷基，金属氧化物或其混合物的产物，然后将所述产物通入后反应器热交换器。 改进包括以下一个或多个：（1）使所述金属烷基化合物与酸反应以产生可溶性金属酯; 或（2）加入离子表面活性剂; 或（3）在足以避免形成显着量的来自所述金属烷基化合物的不溶性金属或金属化合物的条件下，向产物中加入包含抗氧化剂的混合物; 或（4）在惰性气体下，在从后反应器热交换器中除去金属氧化物的条件下吹扫所述后反应器热交换器。

公开(公告)号：US20150065638A1

公开(公告)日：2015-03-05

申请号：US14379584

申请日：2013-02-27

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： Colin LiPiShan ,  Cynthia L. Rickey ,  Alec Y. Wang

IPC: C09J153/00

CPC classification number: C09J153/00 ,  C08L23/08

Abstract: The invention provides an adhesive formulation comprising an olefin block copolymer comprising hard blocks and soft blocks wherein the hard blocks comprise 4-8 mol % comonomer; and are present in an amount of 20 wt %-45 wt %. This formulation is particularly advantageous for use in hot melt adhesives but may be used in other applications as well.

Abstract translation: 本发明提供一种包含含有硬嵌段和软嵌段的烯烃嵌段共聚物的粘合剂制剂，其中硬嵌段包含4-8mol％共聚单体; 并且以20重量％-45重量％的量存在。 该配方对于用于热熔粘合剂中特别有利，但也可用于其它应用中。

公开(公告)号：US11680120B2

公开(公告)日：2023-06-20

申请号：US16956218

申请日：2018-12-19

Applicant: Dow Global Technologies LLC

Inventor： Alec Y. Wang ,  Johnathan E. DeLorbe ,  Joshua B. Gaubert ,  Sarat Munjal ,  Mehmet Demirors ,  Yijian Lin

IPC: C08F210/16 ,  C08F2/01 ,  C08F4/64 ,  C08F2/04 ,  C08L23/08

CPC classification number: C08F210/16 ,  C08F2/01 ,  C08F2/04 ,  C08L23/0815 ,  C08F4/64193 ,  C08F2410/04 ,  C08L2205/025 ,  C08L2314/02

Abstract: Embodiments of a method for producing a multimodal ethylene-based polymer having a first, second, and third ethylene-based component, wherein the multimodal ethylene based polymer results when ethylene monomer, at least one C3-C12 comonomer, solvent, and optionally hydrogen pass through a first solution, and subsequently, a second solution polymerization reactor. The first solution polymerization reactor or the second solution polymerization reactor receives both a first catalyst and a second catalyst, and a third catalyst passes through either the first or second solution polymerization reactors where the first and second catalysts are not already present. Each ethylene-based component is a polymerized reaction product of ethylene monomer and C3-C12 comonomer catalyzed by one of the three catalysts.

公开(公告)号：US20210214470A1

公开(公告)日：2021-07-15

申请号：US17059704

申请日：2019-05-30

Applicant: Dow Global Technologies LLC

Inventor： Maria Pollard ,  Robert D. Swindoll ,  Pradeep Jain ,  Alec Y. Wang ,  Jorge Rubalcaba ,  Shrikant Dhodapkar ,  Sean W. Ewart ,  Bradley K. Blanchard ,  George W. Haun, Jr. ,  Michael J. Zogg, Jr.

IPC: C08F2/06 ,  C08F2/01 ,  C08L23/08 ,  B01J19/24 ,  C08F6/00

Abstract: Disclosed herein is a system for solution polymerization comprising a reactor system that is operative to receive a monomer and to react the monomer to form a polymer; a plurality of devolatilization vessels located downstream of the reactor system, where each devolatilization vessel operates at a lower pressure than the preceding devolatilization vessel; and a heat exchanger disposed between two devolatilization vessels and in fluid communication with them, where the heat exchanger has an inlet port temperature of 100° C. to 230° C., an outlet port temperature of 200° C. to 300° C., an inlet port pressure of 35 to 250 kgf/cm2 and an outlet port pressure of 20 to 200 kgf/cm2; and wherein the polymer solution remains in a single phase during its residence in the heat exchanger.

公开(公告)号：US11002653B2

公开(公告)日：2021-05-11

申请号：US16447605

申请日：2019-06-20

Applicant: Dow Global Technologies LLC

Inventor： Alec Y. Wang ,  Curvel Hypolite ,  Jorge Rubalcaba ,  Michael J. Zogg, Jr. ,  Job D. Guzman

IPC: G01N9/32 ,  C08F6/00 ,  C08F6/12

Abstract: The invention provides a method, and apparatus, for determining the degree of separation (DOS) of a polymer solution into a polymer-rich stream and a solvent-rich stream, said method comprising the following: adding to a liquid-liquid separation vessel the polymer solution, which comprises a polymer, a solvent and an anti-solvent; separating the polymer solution into a polymer-rich stream and a solvent-rich stream; removing at least some the polymer-rich stream from at least one outlet P on the vessel, and measuring the actual solution density of this polymer-rich stream using at least one flow meter; removing at least some of the solvent-rich stream from at least one other outlet S on the vessel, and measuring the actual density of the solvent-rich stream using at least one flow meter; and wherein the degree of separation (DOS) is determined by the following equation (Eqn. 1): DOS=[actual solution density (polymer-rich steam)−actual solution density (solvent-rich stream)]/[theoretical solution density (polymer-rich stream)−theoretical solution density (solvent-rich stream)]  (Eqn. 1).

公开(公告)号：US20210079138A1

公开(公告)日：2021-03-18

申请号：US16956218

申请日：2018-12-19

Applicant: Dow Global Technologies LLC

Inventor： Alec Y. Wang ,  Johnathan E. DeLorbe ,  Joshua B. Gaubert ,  Sarat Munjal ,  Mehmet Demirors ,  Yijian Lin

IPC: C08F210/16 ,  C08F2/01 ,  C08F2/04 ,  C08L23/08

Abstract: Embodiments of a method for producing a multimodal ethylene-based polymer having a first, second, and third ethylene-based component, wherein the multimodal ethylene based polymer results when ethylene monomer, at least one C3-C12 comonomer, solvent, and optionally hydrogen pass through a first solution, and subsequently, a second solution polymerization reactor. The first solution polymerization reactor or the second solution polymerization reactor receives both a first catalyst and a second catalyst, and a third catalyst passes through either the first or second solution polymerization reactors where the first and second catalysts are not already present. Each ethylene-based component is a polymerized reaction product of ethylene monomer and C3-C12 comonomer catalyzed by one of the three catalysts.

公开(公告)号：US09700814B2

公开(公告)日：2017-07-11

申请号：US15086166

申请日：2016-03-31

Applicant: Dow Global Technologies LLC

Inventor： Curvel Hypolite ,  Alec Y. Wang

IPC: B01D17/02 ,  G01N29/024 ,  G01N29/22 ,  G01N29/34 ,  G01F23/296 ,  B01D35/157 ,  C08F210/18 ,  B01D17/12 ,  C08F2/04 ,  C08F6/12 ,  C08F210/16

CPC classification number: B01D17/0208 ,  B01D17/0214 ,  B01D17/12 ,  B01D35/1573 ,  C08F210/18 ,  G01F23/296 ,  G01N29/024 ,  G01N29/222 ,  G01N2291/0222 ,  G01N2291/0251 ,  G01N2291/051 ,  C08F210/06 ,  C08F236/20 ,  C08F2/01 ,  C08F2/06 ,  C08F2/14

Abstract: A system for detecting an interface between a polymer-rich phase and a solvent-rich phase comprising a liquid-liquid separator configured to receive a polymer solution as an inlet stream comprising solvent, polymer and unreacted monomer produced in a solvent-based polymerization reactor through an inlet feed, wherein a tank is configured to provide a residence time of at least 20 minutes and to permit the stream to separate into the polymer rich phase and the solvent rich phase; a first sonic transponder for sending a first sonic signal from either a top or bottom of the liquid-liquid separator and for receiving a first reflected portion of the sonic signal, the reflected portion of the sonic signal created by the passage of the sonic signal through a liquid-liquid interface between the solvent rich phase and the polymer rich phase, wherein the first sonic transponder is positioned such that it transmits the signal which travels perpendicularly to the liquid-liquid interface is provided.