| 摘要 |
<p>A laminated film having a layered structure wherein a coating layer comprising vinylidene chloride polymer, a laminating agent layer comprising a polyisocyanate component and a polyol component, and a polymer film are sequentially laminated on at least one surface of a base film. The vinylidene chloride polymer usable herein is a copolymer with a vinylidene chloride content of 91 to 94 wt % or one with a weight-average molecular weight of 7.5 x 10<4> to 20 x 10<4>, whereby it is possible to inhibit the reduction of the transparency and gas-barrier property of the film due to retorting and the whitening of the heat-sealed part. The base film includes nylon film and may be an oriented one. The polymer film includes one which can be thermally joined.</p> |
