GAS BARRIER LAMINATE AND PACKAGED ARTICLE, AND METHOD FOR PRODUCING GAS BARRIER LAMINATE

摘要

A gas barrier laminate which has a base material and a layer laminated on at least one surface of the base material, wherein the layer comprises a composition comprising a hydrolysis condensate of at least one compound (L) containing a metal atom having at least one characteristic group selected fr om a halogen atom and an alkoxy group, bonded thereto, and comprising a neutralized product from a polymer containing at least one functional group selected from a carboxyl group and a carboxylic acid anhydride group, where at least a part of the -COO- group contained in the above at least one function al group is neutralized with a metal ion having a valence of two or more; and a method for producing the above gas barrier laminate. The gas barrier laminat e exhibits the high oxygen barrier property which does not depend on humidity, and exhibits the high oxygen barrier property even after it is subjected to a retort treatment, and further is excellent in strength and transparency.