Toray Industries, Inc.

Chie Makiyama

Tetsuya Tsunekawa

Syunichi Osada

Hirofumi Hosokawa

Shunichi Osada

An objective of the present invention is to provide a film that has a high rigidity and is superior in dimension stability under high temperatures and transparency after heating processes, as well as in moldability within a wide temperature range, which has not been achieved by conventional techniques, and this objective has been achieved by a laminated film that includes 50 or more layers each of which is made of a thermoplastic resin and has a thickness of less than 30 nm or a biaxial oriented polyester film that has a density in a range from 1 to 1.4 g/cm, a heat shrinkage of &#x2212;2 to 2% in the longitudinal direction at 180&#xb0; C. and a breaking elongation in a range of 100 to 1000% in at least one direction.

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Otsu, Japan

Chie Makiyama