Multi-layered food containers of thermoformed friendly sheet...

B - Operations – Transporting – 32 – B

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B32B 27/00 (2006.01) B32B 27/36 (2006.01)

Patent

CA 2646397

An environmentally friendly sheet material, and thermoformed products made with that material. The two-, three- or four layer environmentally friendly sheet material is especially suited for use in connection with the manufacture of cups and similar containers and products. In a two-layer compostable sheet, the first layer is a relatively thick layer containing up to 50% additive. The second layer is a relatively thin layer of substantially clear compostable material. The two-layer sheet material is preferably made by co-extruding the first and second layers together. The multi-layer material and the products therefrom of the invention exhibits surprisingly high gloss levels on one side thereof.

L'invention concerne une feuille de matériau respectueuse de l'environnement et des produits thermoformés fabriqués à partir de cette feuille. La feuille de matériau respectueuse de l'environnement à deux, trois ou quatre couches convient particulièrement à une utilisation pour la fabrication de tasses et autres contenants et produits semblables. Dans une feuille compostable à deux couches, la première couche est une couche relativement épaisse contenant jusqu'à 50 % d'additifs. La seconde couche est une couche relativement mince de matériau compostable sensiblement transparent. La feuille de matériau à deux couches est de préférence fabriquée par co-extrusion de la première et de la seconde couches. Le matériau multicouche et les produits issus de ce matériau selon l'invention présente des niveaux de brillance étonnamment élevés sur un de leurs côtés.

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