Multilayer film structure

摘要

Multilayer “barrier” films which have excellent Water Vapor Transmission Rate (WVTR) performance are prepared using a core layer which comprises a blend of two different high density polyethylenes (HDPEs) and an organic nucleating agent; a first skin layer which comprises a non-nucleated, ethylene/alpha olefin copolymer having a density of from 0.950 to 0.955 g/cc and a second skin layer. The films are suitable for the preparation of packages for dry foods such as crackers and breakfast cereals.