POLYESTER COMPOSITION AND POLYESTER FILM

摘要

PROBLEM TO BE SOLVED: To provide a film excellent in heat resistance and tenacity, on the other hand moldable by a relatively simple molding process, having constant slipperiness at low temperatures to high temperatures, and stably handleable. SOLUTION: The polyester composition characterized in that it comprises a polyester having a glass transition temperature (Tg) of 20-85 deg.C determined by dynamic viscoelastic method, and fine particles of synthetic zeolite or crosslinked silicone, and the concentration of the fine particles is 0.01-1.0 wt.% based on the total composition. A polyester film made of the composition.