Patent ID: 9481010
Filing Date: 2016-11-01
CPC Classification: B05D,B32B,C08G,C08J,C09D

Claim Text:
1. A method for producing a gas barrier film having a base and a gas barrier layer being arranged on the base, comprising: a step (1) for carrying out at least one process for controlling a moisture content of the base, wherein the process is selected from the group consisting of a process of drying the base, a process of immersing the base in water, and a process of keeping the base in an environment with a pre-determined humidity so that the moisture content of the base becomes 0.01 to 0.8% by mass, wherein the base is a resin film of polycarbonate (PC), polypropylene (PP), polyacrylamide (PA), polyethylene terephthalate (PET), polybutylene terephthalate (PBT), or polyethylene naphthalate (PEN); a step (2) for obtaining a coating film by coating a coating liquid containing polysilazane onto the base; and a step (3) for forming a gas barrier layer by irradiating the coating film with vacuum ultraviolet rays, wherein a film thickness of the gas barrier layer is 50 to 800 nm, and an accumulated light amount of the vacuum ultraviolet rays is 1000 to 10000 mJ/cm