Abstract: The present invention provides a flexible multilayer packaging film and packages formed therefrom wherein the films include a first film layer comprising a first biaxially-oriented polymer selected from the group consisting of a polyester, a polyolefin, a polyamide, and a blend thereof and a surface-roughened portion, a second film layer comprising an adhesive, a third film layer comprising a barrier material, a fourth film layer comprising a second biaxially-oriented polymer selected from the group consisting of a polyester, a polyolefin, a polyamide, and a blend thereof and at least one score-line; wherein the packages comprise a tear-initiation area and a directional tear zone.

Abstract: Coextruded easy-opening film structures having at least three layers for use as a packaging film or as a component thereof suitable for storing and/or cooking food items contained therein. The first film layer includes a material selected from the group consisting of ethylene/?-olefin copolymer, propylene/ethylene copolymer and blends thereof, the second film layer comprises a first modified or unmodified polyolefin and a second modified or unmodified polyolefin which is immiscible in the first modified or unmodified polyolefin; wherein the second layer is disposed between said first layer and said third layer. The third layer includes a material selected from the group consisting of polyethylene, anhydride-modified polyolefin; ethylene/vinyl alcohol copolymer, polyamide and blends thereof. The multilayer coextruded frangible films are thermoformable and exhibit a heat seal strength of between 1000-2500 g/in. (393.7-984.3 g/cm) after being submerged in water at 100° C.