Barrier laminates for the retention of essential oils, vitamins and flavors in citrus beverages and a method of making said laminate and leak-tight containers therefrom
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United States of America Patent
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Jun 28, 1988
Issued Date -
N/A
app pub date -
Aug 29, 1986
filing date -
Sep 10, 1985
priority date (Note) -
Expired
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Abstract
A barrier laminate for making containers and cartons that substantially resist the absorption of essential oils and flavoring components, e.g. peel oil, as well as the oxidation of 1-ascorbic acid (vitamin C) normally found in various beverages such as fruit and citrus juices. In a particularly preferred embodiment, the present laminate comprises a substrate material having a thin layer of PET-G (glycol-modified polyethylene terephthalate) bonded to the substrate's inner and outer surfaces, said PET-G layer becoming the beverage-contacting surface of containers made from such a laminate. In other particularly preferred embodiments, the barrier laminate also includes one or more intermediate layers of oxygen barrier materials between the laminate's substrate and beverage-contacting layer of PET-G. Also disclosed are methods of making such barrier laminates and containers therefrom.
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