| 摘要 |
A rubber composition is provided with a large friction force even on a body having, for example, an ice face of a low friction coefficient. The composition is constituted by a foamed rubber having a rationalized foaming state. The composition is applied to an upper-layer rubber part of a tread rubber constituting at least a ground contact face to enhance a gripping force on a frozen road surface or a snow covered road surface. The foamed rubber has continuous cells 6 each continuously extending substantially along a particular direction 4 and sealed with a resin protection membrane 5. Also, a method is provided for producing such a tire.
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