Multi-laminate food storage wrap

B - Operations – Transporting – 32 – B

Patent

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Details

B32B 5/18 (2006.01) B65D 75/00 (2006.01) B65D 81/28 (2006.01)

Patent

CA 2427247

A laminate comprising first and second laminae. An active is disposed between the first and second laminae. At least one of the laminae is permeable to the active. Holes may be provided to make that lamina permeable. The active is extruded through the holes upon pressure applied generally perpendicular to or in shear relative to the plane of the laminae. The active may be a pressure sensitive adhesive. The laminae is usable as a wrap to temporarily seal or otherwise protect contents, which are typically perishable. The contents may be enclosed by the laminate or placed in separate container which is covered by the laminate.

L'invention concerne un stratifié comprenant une première et une seconde couche. Une substance active est placée entre la première et la seconde couche. Au moins une des couches est perméable à la substance active. Des trous peuvent être effectués pour rendre cette couche perméable. La substance active est extrudée à travers les trous par application de pression généralement perpendiculairement ou en cisaillement par rapport au plan du stratifié. La substance active peut être un adhésif autocollant. Ce stratifié peut être utilisé comme enveloppe pour emballer temporairement de façon hermétique ou pour protéger des contenus, généralement périssables. Ces contenus peuvent être enveloppés par le stratifié ou placés dans un conteneur séparé recouvert par le stratifié.

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