ENHANCED THERMALLY STABLE VINYLIDENE CHLORIDE COPOLYMER CONTAINING PROCESSING AID AND EXTRUDED VINYLIDENE CHLORIDE COPOLYMER FLEXIBLE PACKAGING FILM

摘要

This invention relates to films made from vinylidene chloride copolymers. Specifically, this invention relates to a method and composition for lowering the oxygen permeability and enhancing the thermal stability and enhancing the melt shear stability of packaging films having a layer of vinylidene chloride copolymer film of low molecular weight. The conventional stabilizer/plasticizer combination of expoxy resin and 2-ethyl-hexyl diphenyl phosphate may be employed with the vinylidene chloride copolymer. The layer of vinylidene chloride copolymer can be as thin as 4.57 micron (0.18 mil).