GAS BARRIER FILM HAVING EXCELLENT WEATHER RESISTANCE

摘要

Disclosed is a weather-resistant gas barrier film which can keep its high peeling strength and excellent gas barrier properties under a high-temperature/high-humidity environment or an UV-irradiated environment. Specifically disclosed is a gas barrier film which comprises a base film, a weather-resistant coating layer formed on at least one surface of the base film, and an inorganic thin film layer formed on the surface of the coating layer. The weather-resistant coating layer is selected from the following layers (1) to (3): (1) a weather-resistant coating layer comprising an acrylic copolymer having at least one group selected from the group consisting of an UV-stabilizing group, an UV-absorbing group and a cycloalkyl group; (2) a weather-resistant coating layer produced by crosslinking a polycaprolactone polyol and/or a polycarbonate polyol which is the main component; and (3) a weather-resistant coating layer produced by crosslinking a modified polyvinyl alcohol. Also disclosed is a process for producing the gas barrier film.