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METHOD FOR PREPARING TERMINAL-MODIFIED CONJUGATED DIENE POLYMER, TERMINAL-MODIFIED CONJUGATED DIENE 发明申请

2023-04-30 4270 1367K 0

专利信息

申请日期 2025-06-24 申请号 US15503884
公开(公告)号 US20170275400A1 公开(公告)日 2017-09-28
公开国别 US 申请人省市代码 全国
申请人 BRIDGESTONE CORPORATION
简介 This disclosure is to provide a method for preparing a terminal-modified conjugated diene polymer which achieves an extremely high compounding amount of cis-1, 4 without complicated preparing conditions, a terminal-modified conjugated diene polymer obtained via the method, a rubber composition containing the terminal-modified conjugated diene polymer, and a tire using the rubber composition. This disclosure is A method for preparing a terminal-modified conjugated diene polymer comprising : polymerizing a conjugated diene compound by using a polymerization catalyst composition and modifying a polymer obtained via the polymerization by using a modifier, wherein the polymerization catalyst composition contains a rare earth element compound, and a coordination compound having a cyclopentadiene skeleton selected from substituted or unsubstituted cyclopentadienes, substituted or unsubstituted indenes, and substituted or unsubstituted fluorenes, and wherein the polymerization and modification is performed in a one-pot way.


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