| 摘要 |
<p>Problems with prior art laminate films used for heat-shrink packaging of foodstuffs, such as insufficient oil-and peel-resistance, are overcome by a laminate film comprising a center layer and two outermost layers with a respective adhesive layer between the center layer and each outermost layer, and being capable of exhibiting a rate of heat shrinkage at 90 DEG C of more than 15%, the center layer consisting of a copolymer (I) of vinylidene chloride and both the outermost layers consisting of from 20 to 70% by weight of a copolymer (II) of ethylene and an alpha-olefin, the copolymer (II) having a crystalline melting point of 110 to 125 DEG C, and from 80 to 30% by weight of a copolymer (III) of ethylene and vinyl acetate, the copolymer (III) having a crystalline melting point of 85 to 103 DEG C, the content of copolymer (II) in the total amount of copolymers in both the outermost layers being less than 65% by weight.</p> |
