HEAT RESISTANT AND IMPACT RESISTANT CONTAINER

摘要

PROBLEM TO BE SOLVED: To provide a container with a flange showing excellent heat resistance, impact resistance and transparence of a bottom portion in spite that it is formed by means of a sheet forming of an amorphous polyester sheet. SOLUTION: A heat resistant and impact resistant container is formed by stretch-forming of a thermoplastic polyester wherein a crystallization degree of the thermoplastic polyester of a bottom portion of the container is not less than 15% and the bottom central portion is substantially transparent and further has a clear diffraction peak in a surface index (010) by means of a X-ray diffraction.