发明名称 |
Method for producing modified conjugated diene polymer, modified conjugated diene polymer, and rubber composition |
摘要 |
A method for producing a modified conjugated diene polymer includes a step (A) carrying out a primary modification reaction that reacts a heterocumulene compound having two or more specific functional groups with a conjugated diene polymer having a vinyl content of below 10% and a cis-1,4-bond content of 75% or more and possessing an active end to obtain a primary-modified conjugated diene polymer, and a step (B) carrying out a secondary modification reaction that reacts an active hydrogen-containing compound that includes one or more functional groups selected from the group consisting of an amino group, an imino group, a mercapto group, and a hydroxyl group with the primary-modified conjugated diene polymer to obtain a secondary-modified conjugated diene polymer. The method can produce a modified conjugated diene polymer that exhibits low heat build-up (low fuel consumption) and excellent wear resistance.
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申请公布号 |
US8404785(B2) |
申请公布日期 |
2013.03.26 |
申请号 |
US20070521124 |
申请日期 |
2007.12.27 |
申请人 |
TANAKA RYOUJI;TANI KOUICHIROU;SONE TAKUO;TADAKI TOSHIHIRO;JSR CORPORATION |
发明人 |
TANAKA RYOUJI;TANI KOUICHIROU;SONE TAKUO;TADAKI TOSHIHIRO |
分类号 |
C08C19/20;C08C19/22;C08K3/04;C08K3/36 |
主分类号 |
C08C19/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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