AQUEOUS COATING AGENT AND GAS BARRIER FILM

摘要

An aqueous coating agent of the invention comprising (A) an aqueous polyurethane resin containing a polyurethane resin having an acid group and a polyamine compound, (B) a water-soluble polymer, and (C) an inorganic layered mineral as main constituents, wherein solid formulation ratios of the aqueous polyurethane resin (A), the water-soluble polymer (B) and the inorganic layered mineral (C) occupied in a total solid content of the aqueous coating agent are within ranges indicated below.
Aqueous polyurethane resin (A): 5 to 60 mass%
Water-soluble resin (B): 25 to 80 mass%
Inorganic layered compound (C): 8 to 20 mass%