| 摘要 |
PROBLEM TO BE SOLVED: To provide an injection-molded article having heat resistance and impact resistance. SOLUTION: This injection-molded article is provided by consisting of (A) a lactic acid-based resin having≥0.1% and≤3.0% ratio of D-lactic acid, (B) an aromatic polycarbonate-based resin having≥10 and≤50 melt flow rate measured at 300°C and under 1.2 kg load based on the JIS K7210, and (C) a methacrylic acid-containing elastomer having≤0°C glass transition temperature, having≥10 and <50 mass% ratio of the aromatic polycarbonate-based resin (B) in the resin composition, and≥1 mass% and <25 mass% ratio of the methacrylic acid-containing elastomer (C), and satisfying a relationship of the formula:χc(A)=äΔHm(A)-ΔHc(A)}/ΔHm(A)≥0.90, by a relative crystallinity:χc(A), a heat of crystallization:ΔHc(A) and a heat of crystal fusion:ΔHm(A) of the lactic acid-based resin (A). COPYRIGHT: (C)2007,JPO&INPIT
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