Patent ID: 7524900

Claim:
A composition having gas-barrier properties, comprising: a water-soluble polymer having hydroxyl groups (A), a water-soluble polymer having carboxyl groups (B), a metal alkoxide and/or a hydrolysis condensate thereof (C), and an esterification catalyst (E), wherein the weight ratio of the component (A) and the component (B) is 97/3 to 3/97, and the component (C) is contained in the amount of not less than 1 part by weight and not more than 450 parts by weight, while the component (E) is contained in the amount of not less than 0.01 part by weight and not more than 100 parts by weight, relative to 100 parts by weight of a mixture of the component (A) and the component (B), and wherein the component (E) is dicyanodiamide.