HIGH MOISTURE BARRIER COEXTRUDED BLOWN FILM AND LAMINATE AND PACKAGE MADE THEREFROM

摘要

A coextruded multilayer blown film includes a core layer including a blend of ethylene vinyl alcohol copolymer and an active oxygen barrier composition including a blend of a thermoplastic resin having carbon-carbon double bonds substantially in its main chain, a transition metal salt, and an oxygen barrier polymer; two intermediate layers each including polyamide; a first outer layer including high density polyethylene; a second outer layer including olefinic polymer; and two tie layers each adhering an intermediate layer to the first and second outer layers respectively; wherein from 20% to 65% by weight of the coextruded multilayer blown film is made up of high density polyethylene. A package includes a food product in a hermetic pouch made from the coextruded film, optionally adhered to a PET film, such as a printed, or trap-printed PET film, to form a laminate, the pouch having a longitudinal seal and transverse heat seals.