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    APPARATUS FOR PREPARING POLYBUTADIENE
    3.
    发明申请
    APPARATUS FOR PREPARING POLYBUTADIENE 审中-公开

    公开(公告)号：US20180037683A1

    公开(公告)日：2018-02-08

    申请号：US15554554

    申请日：2016-10-18

    Applicant: LG Chem, Ltd.

    Inventor： Woo Sung Hwang ,  Jun Seok Ko ,  Hoi In Jeong ,  Jong Ku Lee

    IPC: C08F136/06 ,  C08F2/01 ,  C08F36/06 ,  B01J19/18

    CPC classification number: C08F136/06 ,  B01J19/1856 ,  B01J19/1862 ,  B01J2219/00038 ,  B01J2219/0004 ,  B01J2219/00101 ,  B01J2219/00159 ,  B01J2219/00247 ,  C08F2/01 ,  C08F36/06

    Abstract: Provided is an apparatus for preparing polybutadiene which may improve productivity by minimizing a plugging phenomenon occurred during the preparation of polybutadiene and increasing a conversion rate. The apparatus for preparing polybutadiene includes two first polymerization reactors arranged in parallel to reduce the plugging phenomenon in which butadiene (reaction raw material), a polymerization catalyst, and a solvent are respectively supplied and polymerized, at least one second polymerization reactor arranged in series with the first polymerization reactors in which a first polymerization solution containing a butadiene polymer discharged from the first polymerization reactors is supplied and a butadiene polymerization reaction is performed, and one or more condensers which condense gases discharged from the first polymerization reactors and the second polymerization reactor and supply a condensate to the first polymerization reactors and/or the second polymerization reactor.

    Elastic diene terpolymer and preparation method thereof
    4.
    发明授权
    Elastic diene terpolymer and preparation method thereof 有权
    弹性二烯三元共聚物及其制备方法

    公开(公告)号：US09428600B2

    公开(公告)日：2016-08-30

    申请号：US14442029

    申请日：2014-06-30

    Applicant: LG CHEM, LTD.

    Inventor： Sung Ho Park ,  Sung Cheol Yoon ,  Sun Keun Kim ,  Jun Seok Ko ,  Sang Eun Park ,  Soo Young Choi

    IPC: C08F210/18 ,  C08F236/20 ,  C08F4/6592 ,  C08F4/659

    CPC classification number: C08F210/18 ,  C08F4/65908 ,  C08F4/6592 ,  C08F236/02 ,  C08F236/20 ,  C08F2420/02 ,  C08F210/06 ,  C08F2500/25 ,  C08F2500/09 ,  C08F2500/21 ,  C08F2500/20 ,  C08F2500/08

    Abstract: The present invention relates to a long-chain branched elastic terpolymer capable of satisfying excellent processability and elasticity (flexibility) at the same time, which is obtained in the presence of a Group IV transition metal catalyst, and a preparation method thereof. The elastic terpolymer is a copolymer of ethylene, an alpha-olefin having 3 to 20 carbon atoms, and a diene, wherein (i) its weight average molecular weight measured by GPC is 100,000 to 500,000, and (ii) x which is an ethylene content (% by weight) and y which is a crystallization temperature (K) of the copolymer measured when the ethylene content is X satisfy a relationship of 2.628x+100≦y≦2.628x+112.

    Abstract translation: 本发明涉及在IV族过渡金属催化剂的存在下能够同时满足优异的加工性和弹性（柔软性）的长支链状弹性三元共聚物及其制备方法。 弹性三元共聚物是乙烯，具有3-20个碳原子的α-烯烃和二烯的共聚物，其中（i）其通过GPC测量的重均分子量为100,000至500,000，和（ii）x是乙烯 当乙烯含量为X时测量的共聚物的结晶温度（K）为2.628×100≤y≤2.628x+ 112的关系为含量（重量％）和y。

    Method of separating organic solvent from mixed solution containing the organic solvent
    5.
    发明授权
    Method of separating organic solvent from mixed solution containing the organic solvent 有权

    公开(公告)号：US11541327B2

    公开(公告)日：2023-01-03

    申请号：US16980035

    申请日：2019-10-29

    Applicant: LG Chem, Ltd.

    Inventor： Jun Seok Ko ,  Hoi In Jeong ,  Jeong Seok Lee ,  Dong Min Kim ,  Su Ji Yoon

    IPC: B01D3/14 ,  B01D3/16 ,  B01D3/32 ,  B01D3/42 ,  C08F6/04 ,  C08J11/02 ,  C08F236/10

    Abstract: A method of separating an organic solvent which may easily separate and recover an organic solvent from a mixed solution containing the organic solvent, and an organic solvent separation system capable of performing the same are disclosed herein. In some embodiments, the method includes introducing a first mixed solution into a first distillation column to recover an organic solvent and discharge a first fraction containing an unrecovered organic solvent and a high boiling point compound A to a bottom of the column, introducing a second mixed solution into a second distillation column to recover organic solvent and discharge a second fraction containing an unrecovered organic solvent and a high boiling point compound B, and introducing the first fraction and the second fraction into a third distillation column to recover an organic solvent-rich fraction and a high boiling point compound-rich fraction.

    Method of preparing conjugated diene-based polymer and apparatus for preparing conjugated diene-based polymer
    6.
    发明授权
    Method of preparing conjugated diene-based polymer and apparatus for preparing conjugated diene-based polymer 有权

    公开(公告)号：US11370858B2

    公开(公告)日：2022-06-28

    申请号：US16631640

    申请日：2019-01-10

    Applicant: LG Chem, Ltd.

    Inventor： Jun Seok Ko ,  Hoi In Jeong ,  Woo Sung Hwang ,  Dong Min Kim ,  Jeong Seok Lee

    IPC: C08F36/06 ,  B01J19/00 ,  B01J19/24

    Abstract: A method of preparing a conjugated diene-based polymer is provided. The method includes: adding a conjugated diene-based monomer, a catalyst, and a solvent to parallel polymerization reactors, performing a polymerization reaction to prepare a first polymer solution including a first conjugated diene-based polymer; and adding the first polymer solution to a polymerization reactor connected in series to the parallel polymerization reactors, performing the polymerization reaction to prepare a second polymer solution including a second conjugated diene-based polymer. After the polymerization reaction in the series polymerization reactor, gas produced by polymerization heat is condensed in the series polymerization reactor and refluxed to the parallel polymerization reactors, and a reaction temperature of the series polymerization reactor is maintained to be lower than a reaction temperature of the parallel polymerization reactors by 10° C. or more.

    Method of Separating Organic Solvent from Mixed Solution Containing the Organic Solvent
    7.
    发明申请
    Method of Separating Organic Solvent from Mixed Solution Containing the Organic Solvent 有权

    公开(公告)号：US20210016200A1

    公开(公告)日：2021-01-21

    申请号：US16980035

    申请日：2019-10-29

    Applicant: LG Chem, Ltd.

    Inventor： Jun Seok Ko ,  Hoi In Jeong ,  Jeong Seok Lee ,  Dong Min Kim ,  Su Ji Yoon

    IPC: B01D3/14 ,  B01D3/42 ,  C08J11/02 ,  B01D3/32 ,  B01D3/16 ,  C08F6/04

    Abstract: A method of separating an organic solvent which may easily separate and recover an organic solvent from a mixed solution containing the organic solvent, and an organic solvent separation system capable of performing the same are disclosed herein. In some embodiments, the method includes introducing a first mixed solution into a first distillation column to recover an organic solvent and discharge a first fraction containing an unrecovered organic solvent and a high boiling point compound A to a bottom of the column, introducing a second mixed solution into a second distillation column to recover organic solvent and discharge a second fraction containing an unrecovered organic solvent and a high boiling point compound B, and introducing the first fraction and the second fraction into a third distillation column to recover an organic solvent-rich fraction and a high boiling point compound-rich fraction.

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