Abstract: An expandable film includes a core layer and first and second non-expandable outer layers. The core layer includes expandable microspheres dispersed in a matrix having at least 40% of one or more matrix polymers selected from (i) ethylene/unsaturated ester copolymer having an unsaturated ester comonomer content of from 20% to 60%, (ii) ethylene/alpha-olefin copolymer having a density of less than 0.915 g/cc, and (iii) combinations thereof. The melting point of the one or more matrix polymers is at least 15° C. below the activation temperature of the expandable microspheres. The first and second non-expandable outer layers each independently include one or more thermoplastic polymers having a melting point at least 15° C. below the activation temperature of the expandable microspheres.

Abstract: A patch bag has a heat-shrinkable patch adhered to a heat-shrinkable bag, the heat-shrinkable patch comprising homogeneous ethylene/alpha-olefin copolymer. The patch bag can be made by adhering a patch film to a film which is thereafter converted to a bag, or by adhering the patch to a pre-formed bag. A packaged product has a meat product in the patch bag, the meat product comprising bone.

Abstract: Film and sheet materials, and articles made therefrom, such as bags, pouches, trays, etc., comprise one or more layers of a thermoplastic, homogeneous alpha-olefin/vinyl aromatic copolymer, preferably an ethylene/styrene copolymer. The alpha-olefin/vinyl aromatic copolymer has properties which can can provide a desired performance characteristics such as impact resistance, printability, RF sealability, free shrink, optics, as well as many others. The homogeneous alpha-olefin/vinyl aromatic copolymer may be present in a monolayer film, either alone or in a blend, or may be included in one or more layers of a multilayer film. Also included is a multilayer thermoformable article comprising a web having a film of such alpha-olefin/vinyl aromatic copolymers therto. Finally, also included is an RF-sealable film comprising such copolymers.

Abstract: Film and sheet materials, and articles made therefrom, such as bags, pouches, trays, etc., comprise one or more layers of a thermoplastic, homogeneous alpha-olefin/vinyl aromatic copolymer, preferably an ethylene/styrene copolymer. The alpha-olefin/vinyl aromatic copolymer has properties which can can provide a desired performance characteristics such as impact resistance, printability, RF sealability, free shrink, optics, as well as many others. The homogeneous alpha-olefin-vinyl aromatic copolymer may be present in a mono-layer film, either alone or in a blend, or may be included in one or more layers of a multilayer film. Also included is a multilayer thermoformable article comprising a web having a film of such alpha-olefin/vinyl aromatic copolymers thereto. Finally, also included is an RF-sealable film comprising such copolymers.