Package making – Methods – With contents treating
Reexamination Certificate
2011-06-07
2011-06-07
O'Hern, Brent T (Department: 1783)
Package making
Methods
With contents treating
C053S428000, C053S440000, C053S510000, C426S106000, C428S021000, C428S034100, C428S215000, C525S371000
Reexamination Certificate
active
07954305
ABSTRACT:
A packaging system or container for packaging one or more oxygen-sensitive products. The container includes a wall that defines an interior for receiving one or more oxygen-sensitive products. The space between the product or products and the wall defines a headspace. The headspace is filled with an inert gas and a scavenger gas. The wall has at least an inner layer and one or more outer layers. At least one of the outer layers includes an oxidation catalyst such that as oxygen diffuses from outside the container to the interior and scavenger gas diffuses from the interior to outside the container, the diffusing scavenger gas and oxygen react together with the oxidation catalyst in one or more of the outer layers substantially consuming the oxygen.
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Alston & Bird LLP
O'Hern Brent T
Sonoco Development Inc.
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