COATING AGENT AND GAS BARRIER FILM

摘要

PROBLEM TO BE SOLVED: To provide a coating agent capable of forming a gas barrier layer having excellent transparency, the gas barrier layer that exhibits high gas barrier properties even under a high-humidity atmosphere, and also to provide a gas barrier film using the same.SOLUTION: A coating agent includes: an aqueous dispersion including a polyurethane resin having an acid radical and an aqueous polyurethane resin (A) including a polyamine compound dispersed in an aqueous medium; a water-soluble polymer (B); and an inorganic laminar mineral (C). The aqueous polyurethane resin (A) has an average particle diameter of 100nm or less.SELECTED DRAWING: None