| 摘要 |
A heat resistant polyester container comprising a body whose temperature (T) exhibited when the shrinkage factor of the formula: shrinkage factor (%) = (extent of shrinkage /gauge length) x 100 (1) (wherein the extent of shrinkage is measured by TMA under such conditions that no preliminary load is applied and the temperature rise rate from 30 DEG C is 3 DEG C/min with respect to a specimen cut from a body of polyester container so as to have a gauge length of 20 mm) is 0.66% is 120 DEG C or higher. The polyester container is excellent in heat resistance, enables performing retort sterilization at high temperature after charging and sealing of food, beverages, etc., and exhibits such a high heat resistance that, even after the retort sterilization, the body of the container is not deformed. <IMAGE> |
