Invention Grant
- Patent Title: Method for preparing modified conjugated diene-based polymer
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Application No.: US16342124Application Date: 2017-12-07
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Publication No.: US10920004B2Publication Date: 2021-02-16
- Inventor: Jin Young Kim , Jun Seok Ko , No Ma Kim , Yu Jin Kim , Ki Seok Son , Hae Sung Sohn , Ro Mi Lee , Sang Mi Lee , Tae Chui Lee , He Seung Lee
- Applicant: LG Chem, Ltd.
- Applicant Address: KR Seoul
- Assignee: LG Chem, Ltd.
- Current Assignee: LG Chem, Ltd.
- Current Assignee Address: KR Seoul
- Agency: Lerner, David, Littenberg, Krumholz & Mentlik, LLP
- Priority: KR10-2017-0000747 20170103,KR10-2017-0097143 20170731
- International Application: PCT/KR2017/014322 WO 20171207
- International Announcement: WO2018/128285 WO 20180712
- Main IPC: C08F236/10
- IPC: C08F236/10 ; C08F2/01 ; C08F36/06 ; C08F36/08 ; C08F36/16 ; C08K3/36 ; C08K5/06 ; C08K5/17 ; C08F36/04 ; C08F2/38 ; C08C19/44 ; C08C19/25 ; C08C19/22 ; C08F2/00 ; C08K5/1535 ; C08K5/544

Abstract:
The present invention relates to a method for preparing a modified conjugated diene-based polymer, and more particularly, provides a method for preparing a modified conjugated diene-based polymer including a step of polymerizing a conjugated diene-based monomer in the presence of an organometal compound in a hydrocarbon solvent to prepare an active polymer which is coupled with an organometal (S1); and a step of reacting or coupling the active polymer prepared in step (S1) with a modifier (S2), wherein step (S1) is continuously performed in two or more polymerization reactors, and a polymerization conversion ratio in a first reactor among the polymerization reactors is 50% or less.
Public/Granted literature
- US10882939B2 Method for preparing modified conjugated diene-based polymer Public/Granted day:2021-01-05
Information query
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