| 摘要 |
<p>[PROBLEMS] To simplify the multilayer constitution of a gas-barrier packaging material and provide a packaging layered material in which the interlaminar adhesion strength between a barrier layer and an adjacent layer is heightened and a sealant layer as an innermost layer can retain sealing strength. [MEANS FOR SOLVING PROBLEMS] The packaging layered material comprises an outer thermoplastic-resin layer, a paper base layer, an EVOH gas-barrier layer, and a sealant layer, wherein a layer adjacent to the gas-barrier layer comprises a polymer blend of a sea-island structure comprising 92-98 wt.% linear low-density polyethylene and 2-8 wt.% thermoplastic elastomer, the thermoplastic elastomer having an affinity for the hydroxy and/or polar groups of the EVOH.</p> |
