Multilayer metallized polyolefin film structures having improved barrier
properties and reduced water vapor transmission and oxygen transmission
properties are provided. The film structures include a polyolefin
substrate having a first and second side, a metal layer adjacent to the
first side of the substrate and substantially coextensive therewith and a
coating layer adjacent to the metal layer and substantially coextensive
therewith. The coating layer includes a coating selected from the group
consisting of polyvinylidene chloride, polyvinyl alcohol and acrylic
coating.
