| 摘要 |
PROBLEM TO BE SOLVED: To provide a polylactic acid-based thermoplastic resin composition having excellent mechanical characteristics, heat resistance (heat distortion temperature) and thermal stability, providing a molded article having excellent appearance, and obtained by considering the environment well, and the molded article thereof without the problems on safety and hygiene aspects.SOLUTION: A polylactic acid-based thermoplastic resin composition obtained by compounding over 50-70 pts.wt. of a polylactic acid-based resin (A), 5-35 pts.wt. of an acrylic resin (B), 15-35 pts.wt. of a graft copolymer (C) based on 100 pts.wt. of the total of the polylactic acid-based resin (A), the acrylic resin (B) and the graft copolymer (C), and further compounding 0.1-10 pts.wt. of an epoxy group-containing acryl-styrene-based polymer (D) and 0.1-5 pts.wt. of at least one kind selected from phosphoric acid and/or monobasic sodium phosphate (E) based on 100 pts.wt. of the total of the components (A) to (C) is regulated so that the heat distortion temperature measured based on ISO 75 (load 0.45 MPa) may be ≥70°C. |
