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Abstract

The disclosure relates to a laminated, thermoformable barrier film useful as a peelable surface liner, such as in containers and other shaped articles. The laminated film includes at least two layers, including a distal layer and a medial layer. The medial layer includes an odor-resistant polymer barrier layer that inhibits passage of gases and odors therethrough. The distal layer includes a polymer layer that inhibits permeation of a liquid through to distal layer from a contact face thereof to the barrier layer. Optionally, the distal layer can include a scratch resistant layer. The laminated film can also include a proximal layer that includes a layer of a pliable polymer. The laminated film can be included as a surface liner, or stack of surface liners, on a thermoformed article or on a sheet that can be thermoformed. The laminated sheets have multiple uses, including as liners for food service containers. In such containers, the barrier layer of the laminated sheets can inhibit penetration of the liner by odors or tastes from food items contained therein and can also prevent liquid saturation of the barrier layer of the sheets, which could otherwise limit the odor-resistant properties of the sheets.

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First Claim