Toyo Seikan Co., Ltd.

Yuuki Kurihara

Atsushi Komiya

Ryouta Ishii

Hiroki Yasukawa

Yuu Yamazaki

A stretch-blow-formed polyester container having an average thickness of not more than 280 &#x3bc;m in the body portion thereof, and effectively suppressing the deformation that is caused when the container is filled with a content of a high temperature, wherein in the measurement of dynamic viscoelastic properties in an axial direction at a central portion of said body portion, a tan &#x3b4; peak value and a tan &#x3b4; peak temperature at the peak value satisfy either; (i) the tan &#x3b4; peak value is in a range of 0.23 to 0.29, and the tan &#x3b4; peak temperature at the peak value is in a range of 111 to 118&#xb0; C.&#x3b4;; or (ii) the tan &#x3b4; peak value is in a range of less than 0.25, and the tan &#x3b4; peak temperature at the peak value is in a range of not lower than 119&#xb0; C.

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Yokohama, Japan

Yuuki Kurihara