POLYPROPYLENE MULTI-LAYER BARRIER FILMS

摘要

A biaxially oriented laminate film having a first skin layer of a blend of ethylene vinyl alcohol copolymer and substantially amorphous nylon or nylon­containing ionomer; and a core layer comprising a blend of polypropylene resin and optionally an adhesion promoting resin that promotes adhesion between said blend and said polypropylene resin is disclosed. An intermediate layer could optionally be located between the first skin layer and the core layer, wherein the intermediate layer could have the adhesion promoting resin. The biaxially oriented laminate could optionally have a second skin layer such with the core layer between the first and second skin layers.