MANUFACTURE OF FILM FOR BARRIER OF ACRYLONITRILE POLYMER BIAXIAL-ORIENTED

摘要

Extrusion of a homogeneous single phase fusion melt of acrylonitrile polymer and water through a circular die into a steam-pressurized solidification zone enables the tubular film formed to be drawn longitudinally and expanded transversely to provide a biaxially oriented barrier film especially suitable for food wrapping.