Paper pouch for food products
AssigneeADM Tronics Unlimited, Inc.
InventorAndre Di Mino
Life of this patent
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Abstract
A disposable paper pouch enclosing a food product, the pouch being both biodegradable and recyclable. The pouch is made up of two superposed paper plies which are rendered liquid impervious by water-based acrylic layers coated on the inner and outer faces of the plies, the acrylic inner layer having a low melting temperature and the acrylic outer layer having a high melting temperature. The superposed plies are subjected to heat and pressure by standard sealing bars that have no effect on the outer layers but cause the inner layers which face each other to fuse together in a predetermined sealing pattern to define an inner pocket that is fillable with the food product.
Claims8
A recyclable pouch for packaging a food product comprising two superposed plies each formed by at least one sheet of paper, each ply having an inner face coated with a layer of a water-based acrylic polymer having a low glass transition temperature, and an outer face coated with a water-based acrylic polymer having a relatively high glass transition temperature, the layers on the inner faces of the plies being in abutting relationship, said superposed plies being sealed together in a predetermined sealing pattern by heat and pressure applied thereto which brings about fusion of the inner layer but does not affect the outer layers, said sealing pattern defining an expandable interior pocket for accommodating the food product, whereby said pouch because it is composed of paper and water-based acrylic polymers is recyclable in a paper recycling facility.
Dependencies are inferred from the claim text.