| 摘要 |
A rubber composition for a tire tread comprising a foamed rubber composition prepared by blending 100 parts by weight of at least one rubber component selected from the group consisting of natural rubber and diene based synthetic rubbers with 1 to 40 parts by weight of a thermoplastic resin having a melting point of 120 to 130.degree.C, a density of 0.92 to 0.935 and a softening point of 80 to 110.degree.C, and a pneumatic tire using the above rubber composition for a tire tread part. The above thermoplastic resin is preferably a linear polyethylene or a modified linear polyethylene obtained by modifying a part of a linear polyethylene.
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