| 摘要 |
A thermoplastic elastomer excellent in rubber elasticity and extrudability and a molded object thereof. The thermoplastic elastomer comprises a partly or wholly crosslinked rubber (A), an isotactic polypropylene (B) having an isotactic pentad content of 0.8 or higher, a syndiotactic polypropylene (C) having a syndiotactic pentad content of 0.6 or higher, and a softener (D), the content of the syndiotactic of the syndiotactic polypropylene (C) being in the range of 0.5 to 10 wt. % based on the sum of the crosslinked rubber (A), isotactic polypropylene (B), syndiotactic polypropylene (C), and softener (D), the thermoplastic elastomer having a melt flow rate of 0.01 to 1000 g/10 min as measured in accordance with ASTMD 1238 at 230° C. under a load of 10 kg. The molded object is obtained by extrusion-molding the elastomer.
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