POLYESTER SHEET AND FOOD PACKAGE CONTAINER FORMED THEREFROM

摘要

PROBLEM TO BE SOLVED: To obtain a polyester sheet which is excellent in maintaining the flavor of food packaged therewith and exhibits little decrease in impact resistance with time by compounding a specific polyethylene terephthalate resin with a specific low-density polyethylene resin and by sheeting the resultant compsn. and to obtain a food package container from the same. SOLUTION: A polyester sheet is obtd. by compounding 70-90 pts.wt. polyethylene terephthalate resin having an intrisic viscosity of 0.6-1.0dl/g with 10-30 pts.wt. low-density polyethylene resin having a density of 0.90-0.92g/cm<3> and a melt flow rate (at 190 deg.C) of 3-20g/min and produced by the polymn. in the presence of a metallocene catalyst and by melt kneading the resultant compsn. The sheet is thermoformed to give a food package container.