公开(公告)号：US10982026B2

公开(公告)日：2021-04-20

申请号：US16627540

申请日：2017-12-26

Applicant: LG Chem, Ltd.

Inventor： Suk Joon Yoo ,  Sung Ho Park ,  Soo Young Choi ,  Jeong Heon Ahn

IPC: C08F136/00 ,  C08F136/04 ,  C08F4/52 ,  C08F136/06 ,  C08F4/54 ,  C08F236/04 ,  C08F36/04 ,  C08F2/00

Abstract: A method of preparing a conjugated diene-based polymer by continuous polymerization using two or more reactors is provided. The method of preparing a conjugated diene-based polymer includes a conjugated diene-based polymer having excellent cis 1,4 bond content and linearity, by adjusting the ratio of a polymer and a monomer in each reactor and by adjusting the retention time in a second reactor and resolving the deterioration phenomenon of physical properties, while improving productivity by reducing the contamination of the reactors.

公开(公告)号：US10538608B2

公开(公告)日：2020-01-21

申请号：US15554949

申请日：2016-06-24

Applicant: LG Chem, Ltd.

Inventor： Suk Youn Kang ,  Soo Young Choi ,  Woo Jin Cho ,  Suk Joon Yoo ,  Jeong Heon Ahn ,  Jin Sook Ryu

IPC: C08F130/06 ,  C08F30/04 ,  C08K5/57 ,  C08F136/06 ,  B60C1/00 ,  C08L9/00 ,  C08F4/08 ,  C08F4/54 ,  C08F4/609 ,  C08F8/32 ,  C08F8/42 ,  C08F36/04 ,  C08F136/04 ,  C08F210/12 ,  C08K5/00 ,  C08K5/544

Abstract: The present invention provides a catalyst composition including a functionalizing agent of the following Formula 1 together with a rare earth metal compound, an alkylating agent, and a halogen compound, having good catalytic activity and polymerization reactivity and useful for the preparation of a conjugated diene-based polymer having high linearity and excellent processability, and a conjugated diene-based polymer prepared using the catalyst composition. (X1)a—Sn—(X2)4-a  [Formula 1] In Formula 1, a, X1, and X2 are the same as defined in the disclosure.

公开(公告)号：US20180030174A1

公开(公告)日：2018-02-01

申请号：US15554949

申请日：2016-06-24

Applicant: LG Chem, Ltd.

Inventor： Suk Youn Kang ,  Soo Young Choi ,  Woo Jin Cho ,  Suk Joon Yoo ,  Jeong Heon Ahn ,  Jin Sook Ryu

IPC: C08F136/06

Abstract: The present invention provides a catalyst composition including a functionalizing agent of the following Formula 1 together with a rare earth metal compound, an alkylating agent, and a halogen compound, having good catalytic activity and polymerization reactivity and useful for the preparation of a conjugated diene-based polymer having high linearity and excellent processability, and a conjugated diene-based polymer prepared using the catalyst composition. (X1)a—Sn—(X2)4-a,  [Formula 1] In Formula 1, a, X1, and X2 are the same as defined in the disclosure.