| abstract |
(57) [Summary] [Problem] A gas barrier coating composition that is harmless to the human body without deteriorating the barrier properties against gases such as oxygen and water vapor even under humid conditions, and does not contain compounds that may be harmful to the human body. And a gas barrier coating film using the same and having excellent gas barrier properties. SOLUTION: (a) a polyvinyl alcohol-based resin, and (b) R 1 mM (OR 2 ) n (where M is a metal atom, R 1 is the same or different, and has 1 to 8 carbon atoms, R 2 is the same or different and represents an alkyl group having 1 to 5 carbon atoms or an acyl group or a phenyl group having 1 to 6 carbon atoms, m and n are each an integer of 0 or more, and m + n Is the valence of M), a metal alcoholate, Gas barrier coating containing a hydrolyzate of the metal alcoholate, a condensate of the metal alcoholate, a chelate compound of the metal alcoholate, at least one selected from the group consisting of a hydrolyzate of the chelate compound and a metal acylate A composition and a gas barrier coating film using the same. |