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METHOD FOR MANUFACTURING CONJUGATED DIENE POLYMER WITH MODIFIED END, CONJUGATED DIENE POLYMER WITH 发明申请

2023-06-19 4330 1999K 0

专利信息

申请日期 2025-07-11 申请号 WOJP15003347
公开(公告)号 WO2016027401A1 公开(公告)日 2016-02-25
公开国别 WO 申请人省市代码 全国
申请人 BRIDGESTONE CORPORATION
简介 The purpose of the present invention is to provide : a method for manufacturing a conjugated diene polymer with a modified end capable of achieving very high amounts of cis-1, 4 bonds without requiring complicated manufacturing conditions; a conjugated diene polymer with a modified end obtained using said manufacturing method; a rubber composition comprising said conjugated diene polymer with a modified end; and a tire using said rubber composition. The present invention is a method for manufacturing a conjugated diene polymer with a modified end in which a conjugated diene compound is polymerized using a polymerization catalyst composition and the polymer obtained in said polymerization is modified using a modifying agent, the method being characterized in that : said polymerization catalyst composition comprises a rare earth element compound as well as a coordination compound having a cyclopentadiene backbone selected from substituted or unsubstituted cyclopentadiene, substituted or unsubstituted indene, and substituted or unsubstituted fluorene; and said polymerization and modification are performed in a single pot.


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