| 摘要 |
PROBLEM TO BE SOLVED: To provide a coating liquid for gas barrier that has good coatability in the case when it contains a small amount of a volatile base or acid, can form a layer including a polyvalent metal salt of a polycarboxylic acid polymer using one liquid and is excellent in liquid stability and to provide a gas-barrier packaging material using the coating liquid.SOLUTION: The coating liquid for gas barrier includes a component (A), a component (B), a component (C) and a component (D) as given below and a solvent in which the total of the mole number of the component (C) and the mole number of the component (D) is 0.05 to 8.5 mol when the mole number of the component (B) is 1. The component (A): a polycarboxylic acid polymer; the component (B): a polyvalent metal ion; the component (C): a volatile base and acid (exclusive of carbonate acid); and the component (D): a carbonate ion.SELECTED DRAWING: None |
