| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a multi-layer laminated film excellent in the unpacking easiness when used as a lid material for container or a packaging sack, having a heat resistance susceptible to a heating process such as boiling, a retort processing, etc. excellent in the easy-to-cut property, and hardly impairing the outside appearance caused by stringinesst at the peel part, and provide a package container using it as lid material and also a packaging sack. <P>SOLUTION: The multi-layer laminated film has a seal layer A and base material layer(s) B, the former A consisting of a mixture of high-density polyethylene and polypropylene, and on the seal layer A one or more base material layers B are laminated consisting of ethylene-butene copolymer polymerized by the use of a multi-site catalyst and having a density of 0.93-0.94 g/cm<SP>3</SP>or a high-density polyethylene having a density of 0.945-0.965 g/cm<SP>3</SP>, wherein the thickness of the seal layer A is 1-20 μm while the thickness of the base material layer B is 20-100 μm. <P>COPYRIGHT: (C)2009,JPO&INPIT |
