| 摘要 |
PROBLEM TO BE SOLVED: To provide a gas barrier film, which is applicable to neither melt molding method nor coating method with excellent workability, is hardly changed in gas barrier properties with respect to humidity, can be incinerated without generation of harmful gas since it is free from halogen compounds, and thus can reduce environmental loads itself; and to provide a method for producing the same. SOLUTION: The gas barrier film is composed of a single layer or multiple layers, at least one layer constituting the film being a layer having gas barrier properties. The layer having gas barrier properties is formed by a film of a polymer resin having any one of chemical structures represented by general formulae (1)-(4) in a repeating unit of a polymer main chain, and the polymer resin is a polyhydroxy urethane resin obtained by additive reaction of a monomer unit, the monomer unit being composed of a compound having at least two 5-membered cyclic carbonate groups and an amine compound having at least two amino groups. The method for producing the gas barrier film is also provided. COPYRIGHT: (C)2012,JPO&INPIT |
