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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.
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.
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公开(公告)号：US10370471B2
公开(公告)日：2019-08-06
申请号：US15521843
申请日：2015-12-18
Applicant: Dow Global Technologies LLC
Inventor： Thomas W. Karjala , Jorge Rubalcaba , Edward O. Madenjian , Curvel Hypolite , Pradeep Jain
IPC: C08F2/01 , C08F2/04 , C08F6/00 , B01J19/18 , B01J19/24 , C08F10/02 , C08J11/02 , C08L23/04 , C08F210/18 , C08L91/00 , C08L23/16
Abstract: The invention provides a process to form a composition comprising at least one ethylene-based polymer and at least one oil, said process comprising the following: polymerizing a mixture comprising ethylene, and optionally one or more comonomers, in a reactor system, comprising at least one reactor and at least one mixer, located downstream from the reactor, to form the ethylene-based polymer; and wherein the oil is added to the ethylene-based polymer upstream of the mixer. The invention also provides a reactor system for a process to form a composition comprising at least one ethylene-based polymer and at least one oil, said reactor system comprising at least one reactor, at least one mixer, and an oil feed into the ethylene-based polymer, and wherein the oil feed is located after the reactor and before the mixer.
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公开(公告)号：US20210253757A1
公开(公告)日：2021-08-19
申请号：US16973626
申请日：2019-06-13
Applicant: Dow Global Technologies LLC
Inventor： Timothy W. Gambel , Curvel Hypolite , Daniel S. Rynearson , Michael J. Zogg, Jr. , Kyle E. Hart , Michael D. Turner , Jorge Rubalcaba , Pradeep Jain , Mehmet Demirors
Abstract: A method of producing bimodal ethylene-based polymer includes reacting ethylene monomer and C3-C12 α-olefin comonomer in the presence of a first catalyst in an agitated reactor to produce a first polymer fraction, and outputting effluent from the agitated reactor. A second catalyst is added to the effluent downstream of the agitated reactor and upstream from a non-agitated reactor, the second catalyst facilitates production of a second polymer fraction having a density and melt index (I2) different from the first polymer fraction. The second catalyst and effluent are mixed in at least one mixer. The second catalyst, second polymer fraction, and the first polymer fraction are passed to the non-agitated reactor; and additional ethylene monomer, additional C3-C12 α-olefin comonomer, and solvent are passed to the non-agitated reactor to produce more second polymer fraction and thereby the bimodal ethylene-based polymer.
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公开(公告)号：US20180037727A1
公开(公告)日：2018-02-08
申请号：US15525553
申请日：2015-12-18
Applicant: Dow Global Technologies LLC
Inventor： Thomas W. Karjala , Jorge Rubalcaba , Edward O. Madenjian , Curvel Hypolite , Pradeep Jain
CPC classification number: C08L23/0815 , B01J19/18 , B01J19/2455 , C08L2205/025 , C08L2308/00 , C08F210/18 , C08F2/001 , C08F210/06 , C08F236/20 , C08F2500/25 , C08F2500/03 , C08F2500/17 , C08F2/06
Abstract: The invention provides a process to form a “first composition comprising a first ethylene/α-olefin interpolymer and a second ethylene/α-olefin interpolymer,” said process comprising polymerizing a first mixture comprising ethylene, an α-olefin, and optionally a polyene, in a stirred tank reactor to form a first ethylene/α-olefin interpolymer, and transferring at least some of the first ethylene/α-olefin interpolymer to a loop reactor, and polymerizing, therein, a second mixture comprising ethylene, an alpha-olefin, and optionally a polyene, in the presence of the first ethylene/α-olefin interpolymer, to form the “first composition comprising the first ethylene/α-olefin interpolymer and the second ethylene/α-olefin interpolymer.” The invention also provides a polymerization reactor configuration comprising at least the following: a stirred tank reactor followed by a loop reactor.
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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
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.
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Patent Agency Ranking
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
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.
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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
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).
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8.发明申请PROCESS AND APPARATUS TO DETERMINE THE DEGREE OF SEPARATION OF TWO SOLUTION STREAMS 审中-公开确定两个解决方案分离程度的过程和设备公开(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
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）。
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公开(公告)号：US11814456B2
公开(公告)日：2023-11-14
申请号：US16973626
申请日：2019-06-13
Applicant: Dow Global Technologies LLC
Inventor： Timothy W. Gambrel , Curvel Hypolite , Daniel S. Rynearson , Michael J. Zogg, Jr. , Kyle E. Hart , Michael D. Turner , Jorge Rubalcaba , Pradeep Jain , Mehmet Demirors
IPC: C08F210/16 , B01J8/00 , B01J8/18 , B01J19/00 , B01J19/18 , C08F2/01 , C08F2/06 , C08F4/64 , C08F2/00
CPC classification number: C08F210/16 , B01J8/008 , B01J8/1827 , B01J19/0066 , B01J19/1837 , C08F2/01 , C08F2/06 , C08F4/64193 , B01J2219/00033 , C08F2/001 , C08F2800/20
Abstract: A method of producing bimodal ethylene-based polymer includes reacting ethylene monomer and C3-C12 α-olefin comonomer in the presence of a first catalyst in an agitated reactor to produce a first polymer fraction, and outputting effluent from the agitated reactor. A second catalyst is added to the effluent downstream of the agitated reactor and upstream from a non-agitated reactor, the second catalyst facilitates production of a second polymer fraction having a density and melt index (I2) different from the first polymer fraction. The second catalyst and effluent are mixed in at least one mixer. The second catalyst, second polymer fraction, and the first polymer fraction are passed to the non-agitated reactor; and additional ethylene monomer, additional C3-C12 α-olefin comonomer, and solvent are passed to the non-agitated reactor to produce more second polymer fraction and thereby the bimodal ethylene-based polymer.
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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.
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.
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