POLYESTER RESIN COMPOSITION, AND SHEET MATTER, BLOW MOLDING AND STRETCHED FILM PREPARED THEREFROM

摘要

PROBLEM TO BE SOLVED: To obtain a polyester which can produce moldings, particularly large blow moldings, is excellent in long-time continuous moldability and also in transparency and thermal resistance, and to provide moldings prepared therefrom. SOLUTION: The polyester resin composition comprises 0.1-300 ppm of chips of a polyester whose main repeating unit is ethylene terephthalate and fines of a polyester having the same composition as that of the chips of the polyester and 0.1 ppb-1,000 ppm of at least one resin selected from a polyolefin resin, a polyoxymethylene resin and a polyamide resin, and is characterized in that the average diameter of dispersed particles of the polyolefin resin, the polyoxymethylene resin or the polyamide resin is 3 m or less.