Method of fabricating a multilayer barrier packaging material

A method of preparing multilayered high barrier film products consisting essentially of a first polymer film and a second polymer film, said method consisting essentially of:

• laminating a first polymer film having a low permeability to moisture to a second polymer blend film comprising
• from about 80 to 99 parts by weight of a high nitrile gas barrier polymer produced by polymerizing a major proportion of a monosaturated nitrile and a minor proportion of another monovinyl monomer copolymerizable therewith, optionally in the presence of a diene rubber, and
• from about 1 to 20 parts by weight of a second polymer selected from the group consisting of polyolefins having from 2 to about 6 carbon atoms, functionalized with an unsaturated compound selected from the group consisting of unsaturated carboxylic acids, esters, anhydrides, and imides for compatibility with said gas barrier polymer so as to allow said polymer blend film to adhere to said first polymer film.