Patent ID: 7314669
Filing Date: 2008-01-01
Classification: B32B,B65D,Y10T

Abstract:
1. A package comprising a tray and a sealant film comprising a first sealant layer and a second adjacent layer wherein said second adjacent layer is in direct contact with said first sealant layer and wherein the first sealant layer comprises a polymer or polymer blend wherein the polymer is independently selected from the group consisting of polyethylenes (PE), ethylene vinyl acetate copolymer (EVA), polypropylenes (PP), propylene ethylene copolymers (PPE), ethylene normal butyl acrylate copolymer (ENBA), ethylene methyl acrylic acid copolymer (EMAA), ethylene acrylic acid (EAA) and ethylene methylacrylate (EMA) and the second adjacent layer comprises a blend of the same polymer or polymer blend as is present in the first sealant layer and ethylene-butene-1-copolymer, and wherein delamination occurs between the first sealant layer and the second adjacent layer.