Multilayered, biaxially-oriented food casing comprising two oxygen-barrier layers
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United States of America Patent
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Feb 27, 2001
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N/A
app pub date -
May 5, 1998
filing date -
May 21, 1997
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Abstract
An at least four-layer tubular biaxially oriented food casing having an outer layer which includes a mixture of at least one aliphatic and at least one partly aromatic (co)polyamide with or without pigments, and an inner layer which includes aliphatic (co)polyamide, wherein, between these layers, a layer of an ethylene/vinyl alcohol copolymer or a blend of the ethylene/vinyl alcohol copolymer with an aliphatic or partly aromatic (co)polyamide and/or with an olefinic (co)polymer and/or an ionomer resin and a layer of an olefinic (co)polymer with or without adhesion promoters, pigments, and/or UV absorbers are arranged. The casing has a high water-vapor and oxygen barrier. It is particularly suitable as synthetic sausage casing, and can also be used for packaging cheese or animal feed.
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