| 摘要 |
PROBLEM TO BE SOLVED: To provide a gas barrier film that is usable in a packaging material or an electronic device or the like, and has an oxygen barrier function in a wide range from a low humidity to a high humidity.SOLUTION: The gas barrier film includes: a resin base material layer (1); a barrier layer (2) having at least one kind of a water-soluble or water-swelling resin selected from polyvinyl alcohol, an ethylene-vinylalcohol copolymer, polycarboxylic acid, and polyethylene imine; and a barrier layer (3) containing amorphous polyester polyol (A) obtained by polycondensing ortho orientation aromatic dicarboxylic acid or its anhydride and polyhydric alcohol as a main component, and a curing agent to react with a hydroxyl group. |
