Disclosed is a composition having gas-barrier properties, comprising: a water-soluble polymer (X), a metal alkoxide and/or a hydrolysis condensate thereof (C) and an esterification catalyst (E), wherein said water-soluble polymer (X) contains at least one of (i) a mixture of a water-soluble polymer having hydroxyl groups (A) and a water-soluble polymer having carboxyl groups (B), and (ii) a water-soluble polymer having a hydroxyl group and a carboxyl group (AB) and said component (C) is contained in an amount of not less than 460 parts by weight and not more than 2, 700 parts by weight, and said component (E) is contained in an 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 said water-soluble polymer (X).
公开了一种具有气体阻隔性能的组合物,该组合物包括
水溶性聚合物 (X)、
金属烷氧基和/或其
水解缩合物 (C) 以及酯化催化剂 (E),其中所述
水溶性聚合物 (X) 包含以下至少一种:(i) 具有羟基的
水溶性聚合物 (A) 和具有羧基的
水溶性聚合物 (B) 的混合物、(ii) 具有羟基和羧基的
水溶性聚合物(AB),所述组分(C)的含量以重量份数计不少于 460 份但不多于 2,700 份,所述组分(E)的含量以重量份数计不少于 0.相对于 100 重量份的所述
水溶性聚合物 (X) 而言,所述组分 (E) 的含量不低于 0.01 重量份但不超过 100 重量份。