GAS BARRIER LAMINATE AND PRODUCTION THEREOF

摘要

PURPOSE:To obtain a multilayered gas barrier laminate insoluble in water and excellent in oxygen gas barrier properties even under a high humidity condition. CONSTITUTION:A gas barrier laminate has at least such a two-layered structure that a gas barrier film (A) formed from a mixture containing polyvinyl alcohol and poly(meth)acrylic acid or partially neutralized poly(meth)acrylic acid in a wt. ratio of 95:5-10:90 and characterized by that the coefficient of oxygen transmission measured under a condition of temp. 30 deg.C and relative humidity 80% is 1.25X10<-3>ml (STP).cm/m<2>.h.atm{Pa} or less is laminated to a layer (B) of a thermoplastic resin.