PELICULA DE BARREIRA TERMICAMENTE CONTRATIL E PROCESSO PARA SUA FABRICACAO;PROCESSO DE EMBALAGEM DE UM ARTIGO

摘要

A heat-shrinkable barrier film comprised of an oriented polyolefin film coated on one side with a vinylidene chloride copolymer are disclosed. The films have excellent gas and vapor barrier properties, can surprisingly be made using conventional dispersion coating techniques, and retain acceptable optical properties even on shrinking up to as high as 35% in either transverse or machine directions or both.