Abstract: A heat-shrinkable backseamed casing film comprises a first layer, a second layer, and a third layer, with the first and third layers being outer layers and the second layer being between the first layer and the third layer. The first outer layer serves as an inside casing layer, and comprises polyolefin; the second layer comprises polyester and/or polyamide; the third layer serves as an outside casing layer and comprises polyolefin, polystyrene, and/or polyamide. The second layer has a thickness of at least about 5% of a total thickness of the heat-shrinkable casing film. Alternatively, the first layer comprises polyolefin and has a surface energy level of less than about 34 dynes/cm; the second layer comprises a polyamide having a melting point of at least 300° F.; and the third layer comprises polyolefin, polystyrene and/or polyamide. A package comprises a cooked meat product within the backseamed casing.

Abstract: A process of making a biaxially-oriented multilayer film, comprises extruding a tubular multilayer tape and inflating the tape so that the tape is biaxially oriented by stretching in the transverse direction and machine direction at the same time, so that a tubular multilayer film is formed.

Abstract: A backseamed casing has a casing film comprising a first outer layer and a second outer layer, the first outer layer containing a polyamide having a melting point of from about 250-400.degree. F., and the second outer layer containing a polyamide having a melting point of from about 250-400.degree. F. A butt-sealed backseamed casing has a casing film to which a butt-seal tape film is sealed, the casing film having an inside layer containing a polyamide having a melting point of from about 250-480.degree. F., and an outside layer comprising polyolefin, with the butt-seal tape film comprising polyolefin. A heat-shrinkable film has a first outer layer, a second outer layer, and an inner layer. The first outer layer contains a first polyamide having a melting point of from about 250-400.degree. F.; and the second outer layer contains a second polyamide having a melting point of from about 250-480.degree. F.

Abstract: A backseamed casing has a casing film comprising a first outer layer and a second outer layer, the first outer layer containing a polyamide having a melting point of from about 250.degree.-400.degree. F., and the second outer layer containing a polyamide having a melting point of from about 250.degree.-400.degree. F. A butt-sealed backseamed casing has a casing film to which a butt-seal tape film is sealed, the casing film having an inside layer containing a polyamide having a melting point of from about 250.degree.-480.degree. F., and an outside layer comprising polyolefin, with the butt-seal tape film comprising polyolefin. A heat-shrinkable film has a first outer layer, a second outer layer, and an inner layer. The first outer layer contains a first polyamide having a melting point of from about 250.degree.-400.degree. F.; and the second outer layer contains a second polyamide having a melting point of from about 250.degree.-480.degree. F.

Abstract: A packaged product has a cooked meat product, within a film, adhered to a meat-contact surface of the film. An anhydride functionality is present on the meat-contact surface of the film. Upon extraction in ethanol, the anhydride is extractable from the cook-in film to a level of less than 50 parts per billion. A packaged product is prepared by packaging a meat product in the cook-in film and cooking the meat product within the film so that the meat-contact surface of the film adheres to the meat product.

Abstract: The present invention relates to a film material suitable for using in packaging oxygen sensitive products which emit carbon dioxide gas, such as high gassing cheeses. The multilayer film includes at least one layer containing a nylon copolymer, preferably a nylon terpolymer, having at least one aromatic comonomer comprising from about 10% to about 75% by weight of the copolymer. The resultant film material is characterized by a relatively high CO.sub.2 :O.sub.2 transmission ratio; and a CO.sub.2 transmission rate of at least 400 cc/m.sup.2 -day-atmosphere.

Abstract: A multilayer film having a first layer including a blend of a crystalline nylon and a material which disrupts the crystallinity of the crystalline nylon; a second layer also including this blend; and a third intervening layer, between the first and second layers, including a material having a modulus lower than the modulus of the crystalline nylon, and having a crystallinity of less than 60%. The nylon blend layers, which can be two or more in the film, add toughness and stiffness, but also elastic recovery to the final film. The intervening layer or layers of a material with relatively low modulus and crystallinity aid in orientation of the film during manufacture, permitting the use of more of the crystalline nylon than would be practical if only a single nylon layer was used.

Abstract: A composition for scavenging oxygen is disclosed. The composition comprises an ethylenically unsaturated hydrocarbon polymer which has 0.01-1.0 equivalents of carbon-carbon double bonds per 100 g of polymer and a transition metal catalyst and can be incorporated into various types of layers. The composition has an elongation-at-break of at least 20% and retains at least 50% of its original tensile strength after oxygen scavenging has occurred.