Resin composition and laminate for storage of liquid food

C - Chemistry – Metallurgy – 08 – L

Patent

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Details

C08L 101/00 (2006.01) B32B 27/18 (2006.01) B32B 27/28 (2006.01) B32B 27/30 (2006.01) B65D 65/40 (2006.01) C08K 3/34 (2006.01) C08K 5/09 (2006.01) C08K 5/13 (2006.01) C08K 9/04 (2006.01) C08K 13/04 (2006.01) C08L 23/06 (2006.01) C08L 29/04 (2006.01) C08L 23/00 (2006.01)

Patent

CA 2221353

The present invention teaches (1) a composition for packaging aqueous liquid foods in which a hydrophilic reducing organic compound or an organic compound and a porous inorganic compound are dispersed in a hydrophobic thermoplastic resin by means of a hydrophilic and water insoluble thermoplastic resin, (2) a laminate for packaging the foods having an innermost layer or a layer adjacent to the innermost layer made of such composition, and (3) a laminate for packaging the foods having an innermost layer or a layer adjacent to the innermost layer made of a hydrophobic thermoplastic resin into which is dispersed a porous inorganic compound supporting an ascorbic acids. When aqueous liquid foods such as juice, milk or the like are packaged using this composition or laminate, it is possible to prevent degradation due to oxygen existing inside or outside the package, whereby the contents can be safely preserved for a long period of time.

L'invention concerne (1) une composition pour l'emballage d'un aliment liquide aqueux, qui comprend un composé organique réducteur et hydrophile ou une combinaison du composé organique et d'une matière inorganique poreuse dispersée dans une résine thermoplastique par l'intermédiaire d'une résine thermoplastique insoluble dans l'eau et hydrophile. (2) Un stratifié pour emballer ledit aliment, la composition étant utilisée comme la couche la plus interne ou une couche adjacente. (3) Un stratifié pour emballer ledit aliment, la couche de résine thermoplastique hydrophobe comprenant une matière inorganique poreuse dans laquelle un composé d'acide ascorbique est dispersé, est utilisé comme la couche la plus interne ou une couche adjacent à cette dernière. Ladite composition, lorsqu'elle est utilisée pour emballer un aliment liquide aqueux tel que du jus de fruit ou du lait, peut empêcher la détérioration de l'aliment provoquée par l'oxygène de l'intérieur et de l'extérieur de celui-ci et permet de conserver le contenu de l'emballage en toute sécurité et sur une longue période.

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