| 摘要 |
The present invention provides an outer sole light in weight and excellent in abrasion resistance. The outer sole of the present invention is formed out of a polymer composition with a specific gravity of 0.95 or less, which contains an olefin resin and a styrene elastomer, wherein a storage elastic modulus [E'] and a loss coefficient [tan´] in a dynamic viscoelasticity measurement (20±3°C, 10 Hz) are 100 MPa to 500 MPa and 0.2 or less respectively, and a maximum tensile stress is 30 MPa or more. The olefin resin contains an ethylene polymer and a propylene polymer, for example. The styrene elastomer contains an ±-methyl styrene€¢butadiene copolymer, for example. A flaw is hardly occurred on the outer sole in use, so that the outer sole is excellent in abrasion resistance. |
