METHOD FOR MAKING A POLYESTER TRAY PACKAGE WITH MULTILAYER LIDDING FILM HAVING GLYCOL-MODIFIED COPOLYESTER SEALANT LAYER
A tray-type package is disclosed which includes a polyester support member, a product contained on the support member, and a lidding film containing the product and sealed to the periphery of the support member, the lidding film including a sealant layer of a polyester copolymer having greater than...
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Main Author | |
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Format | Patent |
Language | English French German |
Published |
09.07.2008
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Subjects | |
Online Access | Get full text |
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Summary: | A tray-type package is disclosed which includes a polyester support member, a product contained on the support member, and a lidding film containing the product and sealed to the periphery of the support member, the lidding film including a sealant layer of a polyester copolymer having greater than about 50% by mole of glycol polymerization units. Preferably, the support member is a foamed or nonfoamed polyethylene terephthalate (PET) tray and the lidding film is a multilayer film which includes a glycol-modified PET sealant layer. Also disclosed is a lidding film having a sealant layer of a blend of a glycol-modified PET and at least one further polymeric component. |
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Bibliography: | Application Number: EP19990950043 |