To provide a rubber composition for a tread which is capable of achieving both of the maintenance of desired characteristics of a tread rubber such as gripping performance, durability exemplified by wear resistance, rolling resistance characteristics and heat build-up characteristics and the improvement of processability, while reducing the amounts of used raw materials originated from a petroleum resource, and to provide a pneumatic tire having a tread rubber using the rubber composition.
The rubber composition for a tread contains a rubber component, at least one of a terpene resin and a rosin-based resin of 0.5 pt.mass, a silica of 45 pts.mass and a carbon black of 5 pts.mass, based on the rubber component of 100 pts.mass, wherein the rubber component contains a natural rubber component comprising at least one of a natural rubber and a modified natural rubber within the range of 20-100 mass%. The pneumatic tire has a tread rubber using the rubber composition.
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| JP2007099932A | 2007-04-19 | |||
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| JP2007321093A | 2007-12-13 | |||
| JP2000239443A | 2000-09-05 | |||
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Toshio Morita
Yoshihei Nakamura
Yutaka Horii
Hisato Noda
Masayuki Sakai
Nobuo Arakawa