Patent ID: 8617703

Claim:
A gas barrier layered product comprising: a base; and at least one layer with gas barrier properties, the layer being stacked on the base, wherein the layer with gas barrier properties is formed of a composition that includes a hydrolyzed condensate of at least one type of compound (L) containing a hydrolyzable characteristic group, and a neutralized product of a polymer (X) containing at least one functional group selected from a carboxyl group and a carboxylic acid anhydride group, the compound (L) includes a compound (A) and a compound (B) that contains Si to which the hydrolyzable characteristic group is bonded, the compound (A) is at least one type of compound expressed by the following Formula (I): M 1 X 1 m Y 1 n-m (I), where: M 1 denotes any one selected from Al, Ti, and Zr; X 1 denotes any one selected from F, Cl, Br, I, OR 1 , R 2 COO, R 3 COCH 2 COR 4 , and NO 3 ; Y 1 denotes any one selected from F, Cl, Br, I, OR 5 , R 6 COO, R 7 COCH 2 COR 8 , NO 3 and R 9 ; R 1 , R 2 , R 5 and R 6 each denote a hydrogen atom or an alkyl group, independently; R 3 , R 4 , R 7 , R 8 and R 9 each denote an alkyl group, independently; n is equal to the valence of M 1 ; and m denotes an integer of 1 to n, the compound (B) includes at least one type of compound expressed by the following Formula (II): Si(OR 10 ) p R 11 4-p-q X 2 q (II), where: R 10 denotes an alkyl group; R 11 denotes an alkyl group, an aralkyl group, an aryl group or an alkenyl group; X 2 denotes a halogen atom; p and q each denote an integer of 0 to 4, independently; and 1â‰¦p+qâ‰¦4, at least part of â€”COOâ€” group contained in the functional group of the polymer (X) is neutralized with a metal ion having a valence of at least two, the percentage of the compound expressed by Formula (II) in the compound (B) is at least 80 mol %, and the composition has a ratio of [the number of moles of M 1 atom derived from the compound (A)]/[the number of moles of Si atom derived from the compound (B)] in the range of 0.1/99.9 to 30.0/70.0.