| 摘要 |
PROBLEM TO BE SOLVED: To provide a tire excellent in performances on ice (surface braking and driving performances) which exhibits sufficient edge effects, spike effects and water-film-removing performances by surely forming a microscopic waterway while enhancing working efficiencies in a factory by suitably using a particulate-containing organic fiber. SOLUTION: The tire has a foam rubber layer formed on the surface substantially coming into contact with the road surface, where the foam rubber layer has an expansion ratio of 3-50% and comprises a rubber component comprising at least a natural rubber and a polybutadiene rubber each in a specific amount, containing 5-55 pts.mass of carbon black and 5-55 pts.mass of silica, each based on 100 pts.mass of the rubber portion, and further containing (a) a non-containing organic fiber containing no particulates and (b) a particulate-containing organic fiber containing particulates in a specific ratio. COPYRIGHT: (C)2005,JPO&NCIPI
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