| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a laminate excellent in hermetic sealing properties and low temp. sealability, having barrier properties and suitable for the filling packing of various liquid products and a packing container using the same. SOLUTION: In a laminate consisting of a base material layer 1, an intermediate layer 2 and an inner surface layer 3, the intermediate layer 2 comprises plastic and the inner surface layer 3 is constituted of at least three thermoplastic resin layers formed from at least a bonding layer 4, a core layer 5 and a seal layer 6 and the m.p. of the core layer 5 is higher than that of the resin constituting the bonding layer 4 and the seal layer 6. The seal layer 6 comprises an ethylene/α-olefin copolymer polymerized by using a single site catalyst or contains this copolymer as a main component. The core layer 5 comprises polyethylene with a density of 0.926-0.965 and the bonding layer 4 comprises low density polyethylene polymerized by using a multi-site catalyst. A vapor deposition layer 8 of an inorg. compd. is provided on at least the single surface of the plastic film of the intermediate layer 2.</p> |
