GAS BARRIER COATING HAVING IMPROVED BOND STRENGTH

摘要

PROBLEM TO BE SOLVED: To provide a gas barrier coating composition excellent in blocking transmission of oxygen.SOLUTION: In the barrier coating composition, a gas barrier coating comprising a clay dispersion and a polymer solution or dispersion of a PVA and/or EVA is positioned between two flexible plastics films using an adhesive. Adequate bond strength can be maintained by keeping the clay dispersion and the polymer solution or dispersion separate until shortly before they are to be applied.