| abstract |
PROBLEM TO BE SOLVED: To provide a coating composition which does not lower the barrier property against gases such as oxygen and water vapor even under humid conditions and does not contain a compound which is harmful to the human body. SOLUTION: A polyvinyl alcohol-based resin is co-condensed with at least one selected from the group consisting of an organosilane, a hydrolyzate thereof and a condensate thereof represented by R 3 p Si (OR 4 ) 4-p . (A) an alkoxysilyl-modified polyvinyl alcohol-based resin, and (b) a metal alcoholate represented by R 1 mM (OR 2 ) n , a hydrolyzate of the metal alcoholate, a condensate of the metal alcoholate, A chelate compound of the metal alcoholate, a hydrolyzate of the metal chelate compound, a condensate of the metal chelate compound, a metal acylate, A gas barrier coating composition comprising: a hydrolyzate of the metal acylate; and at least one selected from the group consisting of a condensate of the metal acylate. |