| 摘要 |
PROBLEM TO BE SOLVED: To provide a thermoplastic elastomer composition providing a molded product, especially an interior automotive trim, which has excellent fogging properties. SOLUTION: The olefin-based thermoplastic elastomer composition is obtained by subjecting a mixture comprising (A) 42.9-80 pts.wt. of an ethylene-based copolymer rubber, (B) 50-15 pts.wt. of an olefin-based resin and (C) 5-40 pts.wt. of a softening agent [the total amount of components (A), (B) and (C) being 100 pts.wt.] to dynamic heat treatment in the presence of a crosslinking agent, and by static heat treatment, subsequent to the dynamic heat treatment, under the following conditions: Q≥0.1 and t≥2<SP>-(T-110)/10</SP>, in which Q is a quantity (m<SP>3</SP>/(hour×kg)) of hot air supplied upon drying per unit weight of the substance to be treated, t is a heat treatment time (hour) and T is a temperature (°C) of the hot air just before hitting the substance to be treated, and which has a gloss value of 80% or more and a haze value of 10% or less on glass plate when subjected to the fogging test at a condition of 100°C and 3 hours according to the prescription of A method of DIN 75201. In addition, the molded product, in particular, the interior automotive trim is obtained by molding the composition. COPYRIGHT: (C)2008,JPO&INPIT
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