Amorphous silica in packaging film

B - Operations – Transporting – 32 – B

Patent

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Details

B32B 27/08 (2006.01) B65D 81/26 (2006.01) C08J 5/18 (2006.01) C08K 3/36 (2006.01) C08K 5/00 (2006.01)

Patent

CA 2289667

An article of manufacture includes an oxygen scavenger and an amorphous silica. The article can be in the form of e.g. a film or sealing compound. A package can be made from the article for containing an oxygen-sensitive article such as food. The amorphous silica reduces migration of odor causing by-products of the oxygen scavenging process. A method of making an article of manufacture having reduced migration of by-products of an oxygen scavenging reaction includes providing an article including an oxygen scavenger and an amorphous silica; and exposing the article to actinic radiation.

L'invention concerne un article fabriqué contenant un désoxygénant et une silice amorphe. L'article peut se présenter par exemple sous forme de film ou de composé de scellement. On peut former à partir de l'article un emballage destiné à contenir un article sensible à l'oxygène tel qu'un aliment. La silice amorphe réduit un transfert de produits secondaires sources d'odeurs résultant du procédé de désoxygénation. Un procédé de fabrication d'un article fabriqué présentant une réduction du transfert de produits secondaires résultant d'une réaction de désoxygénation consiste à prendre un article contenant un désoxygénant et une silice amorphe, puis à exposer l'article à un rayonnement actinique.

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