发明名称 |
Process for producing conjugated diene polymer, conjugated diene polymer, and rubber composition |
摘要 |
A process for simply and inexpensively producing a conjugated diene polymer with a narrow molecular weight distribution and a high cis-bond content at a low cost is provided. The process comprises a polymerization step, wherein a conjugated diene polymer having a cis-1,4-bond content of 98.5 mass% or more and a ratio (Mw/Mn) of the weight average molecular weight (Mw) to the number average molecular weight (Mn) measured by gel permeation chromatography of 2.5 or less is obtained by carrying out a polymerization reaction in conjugated diene compounds using a catalyst composition containing a rare earth element-containing compound or a reaction product of the rare earth element-containing compound with a Lewis base, an aluminoxane and/or organoaluminum compound, and an iodine-containing compound. |
申请公布号 |
ZA200805099(B) |
申请公布日期 |
2009.10.28 |
申请号 |
ZA20080005099 |
申请日期 |
2006.12.05 |
申请人 |
JSR CORPORATION;BRIDGESTONE CORPORATION |
发明人 |
NAKAMURA, TAKAHIRO;TANI, KOUICHIROU;TANAKA, RYOUJI;SONE, TAKUO;TADAKI, TOSHIHIRO;KURAZUMI, JUNKO;MASAKI, KOJI;OZAWA, YOICHI |
分类号 |
C08F;C08K;C08L |
主分类号 |
C08F |
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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