BARRIER FILMS FOR PREVENTING SOLVENT ATTACK ON PLASTIC RESINS

摘要

This invention relates to the use of a barrier film consisting essentially of thermoplastic homo- or copolymer polyester resin to protect a styrenic resin sheet which constitutes the inner liner wall of an insulative cabinet wall of, for example, a refrigeration appliance unit from attack by the halogen-containing blowing agents present in the insulative polyurethane foam found within the cabinet wall.