Abstract: The present invention relates to packaging articles comprising a rigid or semirigid tray which has a receptacle cavity comprising a thermoplastic multilayer film. The receptacle cavity is integrally formed from a thermoplastic multilayer film and is defined by a bottom panel, an upstanding sidewall and a mouth. The thermoplastic multilayer film includes at least any rigid or semirigid component and an oxygen barrier component comprising a first polyamide layer, an ethylene/vinyl alcohol copolymer layer, a second polyamide layer, such that the ethylene/vinyl alcohol copolymer layer is in direct contact with both the first and second polyamide layers.

Abstract: The present invention relates to flexible packaging films being dimensionally stable when prepared with a plurality of thermoplastic polymeric layers including a first layer comprising a polymer or copolymer having a glass transition temperature of greater than 50° C., a second layer comprising an oxygen barrier material or an adhesive material, and positioned between the first and third layers, and a third layer comprising at least 30% by weight relative to the total weight of said layer of a polymer or copolymer having a glass transition temperature of greater than 50° C. The flexible curl-resistant films according to the present invention also provide packages formed therefrom.

Abstract: The present invention describes thermoformable coextruded film suitable for use in packaging applications having at least a first polymeric layer serving as an outermost exterior-film layer and comprising a cycloaliphatic polyester, an aromatic polyester or blends thereof; a second polymeric layer serving as a thermoforming-assist layer and comprising a polyolefin; and a third polymeric layer serving as an innermost exterior-film layer and comprising a heat-sealing polyolefinic material. The films of the present invention are oxygen-permeable in that they exhibit an oxygen transmission rate of between 2-1000 cm3/100 in2/24 h.atm.