Gas barrier film with protective coating layer containing inorganic particles

A gas barrier film consisting of:

• a substrate layer;
• a barrier layer;
• an intermediate layer between the barrier layer and the substrate layer, the intermediate layer having a thickness of 0.3 μm to 2 μm and comprising a silica component comprising a hydrolysis reaction product of tetraethyl orthosilicate or tetraethoxy orthosilicate and a silane containing a substituent selected from the group consisting of vinyl, phenyl, gamma-glycidoxypropyl, gamma-methacryloxypropyl and methyl;
• and
• a cured protective layer formed on the barrier layer so as to be in contact with the barrier layer,
• wherein the cured protective layer is a curing reaction product of a coating composition that contains spherical nanoparticles, an initiator and a binder, wherein:
• the nanoparticles are present in an amount of 40 wt % to 70 wt % based on the total weight of the nanoparticles and the binder;
• the nanoparticles have an average diameter of 10 to 20 nm;
• and
• the binder is selected from the group consisting of 1,6-hexanediol diacrylate, neopentyl glycol diacrylate, diethylene glycol diacrylate, tripropylene glycol diacrylate, dicyclopentanyl diacrylate, butylene glycol diacrylate, pentaerythritol diacrylate, trimethylolpropane triacrylate, propionoxide modified trimethylolpropane triacrylate, pentaerythritol triacrylate, ditrimethylolpropane tetraacrylate, dipentaerythritol hexaacrylate, caprolactone modified dipentaerythritol hexaacrylate, tetramethylolmethane tetraacrylate, polyester acrylate, polyether acrylate, urethane acrylate, epoxy acrylate, polyol acrylate and a combination thereof.