Patent ID: 6812285
Filing Date: 2004-11-02
Classification: C08L

Abstract:
A thermoplastic elastomer composition for a powder material used for slush molding, said thermoplastic elastomer composition comprising:a polypropylene resin; and 20 to 500 parts by mass of a hydrogenated block copolymer per 100 parts by mass of the polypropylene resin, the hydrogenated block copolymer comprising a) at least one polymer block A with a primary component comprising a vinyl aromatic hydrocarbon monomer unit and b) at east one polymer block B with a primary component comprising a hydrogenated butadiene monomer unit, the polymer block B having a hydrogenation degree of at least 90%, the vinyl aromatic hydrocarbon in the hydrogenated block copolymer present in an amount more than 5 mass % and less than 25 mass %, the polymer block B before hydrogenation containing 62 mol % or more 1, 2 bonds on average, wherein the melt flow rate (MFR) of the thermoplastic elastomer composition is at least 10 g/10 min at 230Â° C. under a load of 2.16 kgf in accordance with Japanese Industrial Standards (JIS) K7210.