发明名称 |
RUBBER COMPOSITION FOR TIRE AND TIRE |
摘要 |
The invention has an object to provide a rubber composition for tire with improved processability and abrasion resistance. The invention relates to a rubber composition for tire, comprising: (a) 5-90 weight parts of a high cis polybutadiene having a cis structure in a proportion of 95 % or higher in a microstructure analysis; (b) 90-5 weight parts of a diene-based rubber other than (a); and (c) 1-100 weight parts of a reinforcing agent blended in 100 weight parts of a rubber component including (a) + (b). The high cis polybutadiene is synthesized using a cobalt-based catalyst and satisfies the requirements of: (i) a Mooney viscosity (ML) of 40-49; (ii) a molecular weight distribution [Weight average molecular weight (Mw)/Number average molecular weight (Mn)] of 3.0-3.9; and (iii) a velocity dependence index (n-value) of the Mooney viscosity of 2.3-3.0. |
申请公布号 |
CA2630831(A1) |
申请公布日期 |
2007.07.19 |
申请号 |
CA20072630831 |
申请日期 |
2007.01.16 |
申请人 |
UBE INDUSTRIES, LTD. |
发明人 |
OKAMOTO, NAOMI;ANBE, MITSUHARU;WADA, TAKASHI |
分类号 |
C08L9/00;B60C1/00;C08K3/04;C08K3/36 |
主分类号 |
C08L9/00 |
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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