The gas barrier properties film which oxygen transmittance

摘要

PROBLEM TO BE SOLVED: To obtain a film containing no chlorine in the structure which exerts an excellent oxygen gas-barrier property at a high humidity and its laminate without subjecting to a high temperature or a long time heat treatment as in conventional methods.;SOLUTION: The gas-barrier film is formed of a mixture containing a polyalcohol polymer (A) and a vinyl polymer (B) containing itaconic acid as an essential constituent, and has an oxygen permeability measured at 25°C at a relative humidity of 80% of ≤100 cc/m2.24 h.atm/μm.;COPYRIGHT: (C)2002,JPO