| 摘要 |
<p>The present invention relates to a laminated structure comprising: a heat-resistant base layer, an adhesive layer, an intermediate layer and a heat sealant layer, said heat-resistant base layer, adhesive layer, intermediate layer and heat sealant layer being superposed in that order wherein said laminated structure has an initial impact strength P in the range of 5 to 20g as measured by a loop stiffness test, and a stiffness f not higher than the initial impact strength P and meeting an expression: f = -at + b, where a and b are constants, t is time elapsed after the start of stiffness measurement (t ‰¥ 3 min) and 0 ‰¤ a ‰¤ 0.1.</p> |
