发明名称 |
DRY MASTER BATCH, RUBBER COMPOSITION FOR TIRE USING THE SAME, AND METHOD FOR PRODUCING THE SAME |
摘要 |
PROBLEM TO BE SOLVED: To improve the rolling resistance performance of a rubber composition for a tire without damaging its wear resistance.SOLUTION: Provided is a dry master batch obtained by dry-mixing diene rubber of 100 pts.mass and syndiotactic-1,2-polybutadiene with a melting point of 110°C or lower of 3 to 25 pts.mass under the application of mechanical shearing force. Also provided is a rubber composition for a tire obtained by mixing the dry master batch and silica. Also provided is a pneumatic tire provided with tread rubber composed of the rubber composition. Further, also provided is a method for producing a rubber composition for a tire including: a step of dry-mixing diene rubber of 100 pts.mass and syndiotactic-1,2-polybutadiene with a melting point of 110°C or lower of 3 to 25 pts.mass under mechanical shearing force to obtain a dry master batch; and a step of mixing the obtained dry master batch with silica. |
申请公布号 |
JP2014084410(A) |
申请公布日期 |
2014.05.12 |
申请号 |
JP20120234888 |
申请日期 |
2012.10.24 |
申请人 |
TOYO TIRE & RUBBER CO LTD |
发明人 |
HIRABAYASHI KAZUYA |
分类号 |
C08J3/22;B60C1/00;C08K3/36;C08L9/00 |
主分类号 |
C08J3/22 |
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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