公开(公告)号：US12054583B2

公开(公告)日：2024-08-06

申请号：US17413285

申请日：2020-01-16

Applicant: LG Chem, Ltd.

Inventor： Hyunju Kim ,  Hyeon Hui Kim ,  Jae Hoon Choe ,  Mooho Hong ,  Ki Jae Lee ,  Soyeon Jee

IPC: C08J3/12 ,  C08G64/40 ,  C08J3/09

CPC classification number: C08G64/406 ,  C08J3/095 ,  C08J3/096 ,  C08J3/12 ,  C08J2369/00

Abstract: A method for preparing granular polycarbonate particles is disclosed herein. In some embodiments, a method for preparing granulated polycarbonate particles includes mixing a polymerization reaction solution comprising polycarbonate and an organic solvent, and an anti-solvent solution comprising water and an anti-solvent to prepare a mixed solution, heating the mixed solution to remove the organic solvent, and drying or filtering the mixed solution to obtain granular polycarbonate particles. The granular polycarbonate particles having excellent physical properties without using a stabilizer or a surfactant can be obtain.

公开(公告)号：US11214643B2

公开(公告)日：2022-01-04

申请号：US16756023

申请日：2019-06-19

Applicant: LG Chem, Ltd.

Inventor： Dong Cheol Choe ,  Jae Hoon Choe ,  Jung Yong Lee ,  Hyeon Hui Kim ,  Jong Young Choi ,  Won Jae Lee

IPC: C07F1/02 ,  C08F236/10

Abstract: The present invention relates to a modification polymerization initiator and a method for preparing the same, and the modification polymerization initiator includes a derived unit from a compound represented by Formula 1 and may include various functional groups in a molecule, and thus, may initiate polymerization reaction and introduce a functional group into a polymer chain at the same time.

公开(公告)号：US11028189B2

公开(公告)日：2021-06-08

申请号：US15744565

申请日：2016-07-27

Applicant: LG Chem, Ltd.

Inventor： Jae Hoon Choe ,  Jong Young Choi ,  Jung Yong Lee ,  Dong Cheol Choe ,  Hyun Ju Kim ,  Hyeon Hui Kim ,  Jong Min Shin ,  Woong Chan Jeong ,  Kwang Ho Song

IPC: C08F2/01 ,  C07F1/02 ,  C08F236/10 ,  C08F2/04 ,  C08F2/44 ,  C08F2/60 ,  C08F4/08 ,  C08K5/34 ,  B01F5/06 ,  C08F4/10 ,  C08F236/14 ,  C08K5/19 ,  C08K5/3432

Abstract: An method for preparing an anion polymerization initiator, a device for preparing the same and an anion polymerization initiator prepared therefrom are provided. And the method for preparing an anion polymerization initiator according to present invention is characterized in that an amine compound of Formula 1 and/or Formula 2; an organometallic compound; and/or a conjugated diene compound are introduced in the form of a solution and reacted.

公开(公告)号：US20190330447A1

公开(公告)日：2019-10-31

申请号：US16468998

申请日：2017-12-27

Applicant: LG Chem, Ltd.

Inventor： Jae Hoon Choe ,  Jong Young Choi ,  Dong Cheol Choe ,  Hyun Ju Kim ,  Hyeon Hui Kim ,  Jung Yong Lee ,  Chan Joong Kim ,  Myung Han Lee ,  Hye Jin Han

IPC: C08K5/18 ,  C08F236/10 ,  C07C211/53 ,  C07C209/70

Abstract: A polymerization initiator composition includes isomers of the polymerization initiator, thereby preventing instability and inertness of the polymerization initiator and physical property degradation of the SSBR, minimizing by-products and unreacted materials, and remarkably improving a conversion ratio. In addition, when the polymerization initiator composition according to the present invention is used, there is no need to add a polar additive separately upon polymer polymerization, since the polar additive is already added at the time of preparing the polymerization initiator. Further, the polymer initiator composition has high polarity so that the hydrophobic SSBR and the hydrophilic silica can be effectively dispersed.

公开(公告)号：US10301327B2

公开(公告)日：2019-05-28

申请号：US15577974

申请日：2016-07-27

Applicant: LG Chem, Ltd.

Inventor： Jae Hoon Choe ,  Dong Cheol Choe ,  Hyun Ju Kim ,  Hyeon Hui Kim ,  Jong Young Choi ,  Jung Yong Lee ,  Woong Chan Jeong ,  Jong Min Shin ,  Chan Joong Kim ,  Kwang Ho Song

IPC: B60C1/00 ,  C07F1/02 ,  C08F2/04 ,  C08F2/44 ,  C08F2/50 ,  C08F12/08 ,  C07C211/04 ,  C07D211/80 ,  C08F212/08 ,  C08F236/06

Abstract: A method for preparing an anionic polymerization initiator, a device for manufacturing the same, and an anionic polymerization initiator prepared therefrom is provided. And the method for preparing an anionic polymerization initiator according to the present invention is characterized in that in a continuous reactor an amine compound of Formula 1 and/or Formula 2; an organometallic compound; and/or a conjugated diene compound are introduced in the form of a solution and reacted.

公开(公告)号：US20180208684A1

公开(公告)日：2018-07-26

申请号：US15744565

申请日：2016-07-27

Applicant: LG Chem, Ltd.

Inventor： Jae Hoon Choe ,  Jong Young Choi ,  Jung Yong Lee ,  Dong Cheol Choe ,  Hyun Ju Kim ,  Hyeon Hui Kim ,  Jong Min Shin ,  Woong Chan Jeong ,  Kwang Ho Song

IPC: C08F2/01 ,  C08F2/04 ,  C08F2/44 ,  C08F2/60 ,  C08F4/08 ,  C08F4/10 ,  C08F236/14 ,  C08K5/19 ,  C08K5/3432 ,  B01F5/06

CPC classification number: C08F2/01 ,  B01F5/0604 ,  C07F1/02 ,  C08F2/04 ,  C08F2/44 ,  C08F2/60 ,  C08F4/08 ,  C08F4/10 ,  C08F236/10 ,  C08F236/14 ,  C08K5/19 ,  C08K5/3432 ,  C08F4/48

Abstract: An method for preparing an anion polymerization initiator, a device for preparing the same and an anion polymerization initiator prepared therefrom are provided. And the method for preparing an anion polymerization initiator according to present invention is characterized in that an amine compound of Formula 1 and/or Formula 2; an organometallic compound; and/or a conjugated diene compound are introduced in the form of a solution and reacted.