| 摘要 |
PROBLEM TO BE SOLVED: To obtain a thermoplastic elastomer resin composition which can give an automotive shift knob being soft and having excellent abrasion resistance and good oil resistance and appearance by compounding a specified block copolymer with a polyolefin resin, a non-aromatic rubber softener, a specified thermoplastic elastomer composition, and a silicone oil. SOLUTION: This composition comprises a block copolymer (A) having at least two polymer blocks based on a vinylaromatic compound and at least one polymer block based on a conjugated diene compound; a polyolefin resin (B); a non-aromatic rubber softener (C); a thermoplastic elastomer composition (D) containing a crystalline polyolefin resin and a partially or wholly crosslinked polymer comprising ethylene and a 3-12Cα-olefin; and a silicone oil (E). The mixing ratio by weight is such that 50-170 pts.wt. component B, 100-300 pts.wt. component C, 50-170 pts.wt. component D, and 5-50 pts.wt. component E are present per 100 pts.wt. component A.
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