Title:
The rubber composition for tire based red, and a pneumatic tire
Document Type and Number:
Japanese Patent JP5992160
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To improve low-heat-generating properties while maintaining cutting resistance.SOLUTION: The rubber composition for tire base tread includes a rubber component including 20-50 mass% of butadiene rubber synthesized using a rare-earth catalyst (e.g., neodymium catalyst) and 50-80 mass% of another diene rubber and is free from a silane coupling agent. The rubber composition further includes, as a filler, 10-15 vol.% of large-particle-size carbon black having a nitrogen-adsorption specific surface area of 20-50 m/g, and 1-5 vol.% of small-particle-size filler composed of carbon black and/or silica having a nitrogen-adsorption specific surface area of 110-220 m/g, the total amount of the filler being 11-16 vol.%.
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Inventors:
Kazuya Hirabayashi
Application Number:
JP2011259171A
Publication Date:
September 14, 2016
Filing Date:
November 28, 2011
Export Citation:
Assignee:
TOYO TIRE & RUBBER CO.,LTD.
International Classes:
C08L9/00; B60C1/00; B60C11/00; C08K3/04; C08K3/36; C08L7/00
Domestic Patent References:
| JP2010163544A | ||||
| JP2006124487A | ||||
| JP2011046299A | ||||
| JP2010095705A | ||||
| JP2005023295A | ||||
| JP2003012860A |
Attorney, Agent or Firm:
Tamako Tsutada
Masato Tsuda
Tetsuji Nakamura
Katsuyuki Tomita
Masato Tsuda
Tetsuji Nakamura
Katsuyuki Tomita