Abbott Laboratories
Membrane sealed container

Abstract:

A sealed container for packaging of granular or powdered product including a rigid container body defining an interior space and an upper portion, the upper portion having a sealing lip that defines an opening to the interior space, and a flexible, polymer sealing membrane removably attached to the sealing lip to cover the opening, the sealing membrane including a plurality of laser generated micro-perforations formed through the sealing membrane, the size of each of the plurality of laser generated micro-perforations being less than 3.937 mils.