| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a bottle that is formed in a self-sustaining shape at its bottom while being highly heat-resistant and pressure-resistant. SOLUTION: In a plastic bottle made up by biaxially stretched molding, a plurality of legs 2, each formed by swelling downward from the hemispherical surface 11 of the bottom 1 of the bottle, are provided at the bottom approximately at equal intervals in the circumferential direction. The bottle is made of polyester including 99-90mol% of ethylene terephthalate unit and l-10mol% of ethylene-2 unit and 6-naphthalate unit.</p> |
