| abstract |
The present invention provides a gas barrier resin (A) having an oxygen permeability coefficient of 1.0 × 10 -14 (cm 3 · cm / cm 2 · Pa) or less, and the general formula (1), the general formula (2), and the general formula (3) (wherein, R 1 represents a hydrogen atom or a methyl group, and R 2 represents a halogen atom, a hydroxyl group, an alkoxy group, or a hydrocarbon group having 1 to 20 carbon atoms which may be substituted with an amino group. l, m, and n are numerical values representing molar ratios of respective monomer structural units, and n may be 0. p represents an integer of 1 to 4. A resin composition containing a polymer (B), wherein the ratio of the mass of the copolymer (B) to the total mass of the gas barrier resin (A) and the copolymer (B) is 1 to 40 mass% Resin composition. As the gas barrier resin (A), a vinyl alcohol resin (A1), a polyamide resin (A2), and a polyester resin (A3) are preferable. According to the present invention, it is possible to provide a resin composition in which low flexibility and low impact resistance, which are defects of the gas barrier resin, are improved without impairing the excellent gas barrier properties of the gas barrier resin. |