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.

公开(公告)号：US20150259524A1

公开(公告)日：2015-09-17

申请号：US14727073

申请日：2015-06-01

Applicant: Dow Global Technologies LLC

Inventor： Ashish Batra ,  Dana R. Breed ,  Pradeep Jain ,  Jose M. Rego ,  Robert T. Johnston ,  Alec Y. Wang ,  Jeffrey C. Munro

IPC: C08L53/00 ,  C08L23/06 ,  C08L9/00

CPC classification number: C08L53/00 ,  C08K3/013 ,  C08K3/26 ,  C08L9/00 ,  C08L23/04 ,  C08L23/06 ,  C08L23/16 ,  C08L91/00 ,  C08L2205/03 ,  C08L2207/062 ,  C08L2312/00 ,  C08L2666/24 ,  C08L2666/04 ,  C08K3/0033

Abstract: Disclosed are oil-extended olefin block copolymer compositions with low, or no, tack. A unique comonomer content in the soft segment of the OBC in conjunction with the presence of a polyolefin provides the present oil-extended OBC composition with softness, low (or no) tack, and low (or no) oil-bleed.

Abstract translation: 公开了具有低或不粘性的油扩展烯烃嵌段共聚物组合物。 结合存在聚烯烃，在OBC的软链段中独特的共聚单体含量提供了本发明的油扩展的OBC组合物具有柔软性，低（或不）粘性和低（或不）的油渗。

公开(公告)号：US12162965B2

公开(公告)日：2024-12-10

申请号：US17312739

申请日：2019-12-13

Applicant: Dow Global Technologies LLC

Inventor： Alec Y. Wang ,  Jorge Rubalcaba ,  Michael D. Turner ,  Michael J. Zogg, Jr. ,  Pradeep Jain

IPC: C08F10/02 ,  B01J19/00 ,  B01J19/24 ,  C08F6/10

Abstract: Disclosed herein too is a method comprising charging to a reactor system a feed stream comprising a catalyst, a monomer and a solvent; reacting the monomer to form a polymer; where the polymer is contained in a single phase polymer solution; transporting the polymer solution to a pre-heater to increase the temperature of the polymer solution; charging the polymer solution to a liquid-liquid separator; reducing a pressure of the polymer solution in the liquid-liquid separator and separating a polymer-rich phase from a solvent-rich phase in the liquid-liquid separator; transporting the polymer-rich phase to a plurality of devolatilization vessels located downstream of the liquid-liquid separator, where each devolatilization vessel operates at a lower pressure than the preceding devolatilization vessel; and separating the polymer from volatiles present in the polymer rich phase.

公开(公告)号：US20220017653A1

公开(公告)日：2022-01-20

申请号：US17312723

申请日：2019-12-13

Applicant: Dow Global Technologies LLC

Inventor： Alec Y. Wang ,  Jorge Rubalcaba ,  Michael D. Turner ,  Michael J. Zogg, Jr. ,  Pradeep Jain

IPC: C08F2/01 ,  C08F10/02 ,  C08F2/06 ,  C08F6/10 ,  C08K5/01 ,  B01J19/18

Abstract: Disclosed herein is a system for solution polymerization comprising a reactor system that is operative to receive an anti-solvent, a monomer, and a solvent, and to react the monomer to form a polymer; where the anti-solvent is not a solvent for the polymer and is operative to reduce the lower critical solution temperature; 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 wherein the plurality of devolatilization vessels receives a polymer solution from the reactor system; and a liquid-liquid separator that is operative to receive a polymer solution from the reactor system and to facilitate a separation between the polymer and volatiles by reducing the pressure and temperature of the polymer solution in the liquid-liquid separator.

公开(公告)号：US10365195B2

公开(公告)日：2019-07-30

申请号：US14915921

申请日：2014-11-25

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：US09932425B2

公开(公告)日：2018-04-03

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 ,  C08K5/52 ,  C08K5/12 ,  C08K5/17 ,  C08L23/08 ,  C08F297/08 ,  C08L53/00 ,  C08F6/02 ,  C08K5/098 ,  C08F210/16

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.

公开(公告)号：US20160282251A1

公开(公告)日：2016-09-29

申请号：US14915921

申请日：2014-11-25

Applicant: DOW GLOBAL TECHNOLOGIES LLC

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

IPC: G01N9/32 ,  C08F6/12

CPC classification number: G01N9/32 ,  C08F6/003 ,  C08F6/12 ,  C08L23/00

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).

Abstract translation: 本发明提供了一种用于确定聚合物溶液进入富聚合物流和富溶剂流的分离程度（DOS）的方法和装置，所述方法包括以下步骤：向液 - 液分离容器中加入 聚合物溶液，其包含聚合物，溶剂和抗溶剂; 将聚合物溶液分离成富聚合物流和富溶剂流; 从容器中的至少一个出口P去除至少一些富含聚合物的流，并使用至少一个流量计测量该富聚合物流的实际溶液密度; 从容器中的至少一个其他出口S去除至少一些富溶剂流，并使用至少一个流量计测量富溶剂流的实际密度; 并且其中分离度（DOS）由以下等式（等式1）确定：DOS = [实际溶液密度（富含聚合物的蒸汽） - 实际溶液密度（富溶剂流）] / [理论溶液密度 富含聚合物的流） - 理论溶液密度（富溶剂流）]（方程式1）。