| abstract |
This product includes a packaging material, said packaging material containing a multilayer structure. The multilayer structure has at least one layer of each of a substrate (X), a layer (Y), and a layer (Z). The layer (Y) contains aluminum atoms. The layer (Z) contains a polymer (E) containing monomeric units having phosphorus atoms. In at least one set of the layer (Y) and the layer (Z), said layers are laminated adjacent to one another. The product has excellent gas barrier properties, and is suitable for maintaining the gas barrier properties at a high level, even when subjected to physical stress such as deformation or shock. |