| abstract |
The present invention is to provide a kind of rubber compositions, while keeping the fuel efficiency under low temperature environment to improve, the available tire with the wet Pavement Performance substantially ensured.The rubber composition is characterized in that: the rubber components (A) of at least one isoprene rubber selected from the group being made of natural rubber and synthesis isoprene rubber including 50 mass % or more；Thermoplastic resin (B)；With the filler (C) of the silica including 70 mass % or more, thermoplastic resin (B) is 5-40 mass parts relative to the compounding amount of the rubber components (A) of 100 mass parts.The tan δ measured at 0 DEG C that is further characterized by of the rubber composition is 0.5 hereinafter, the difference of the tan δ at tan δ and 60 DEG C at 30 DEG C is 0.070 hereinafter, and the storage modulus that measures at 1% dynamic strain and 0 DEG C is 20MPa or less. |