Packaging material
AssigneeGPCP IP Holdings LLC
InventorsLori Jeanne Fortin, Ana Michel Retzlaff, Andrew Paul Balliet, Gary Harold Knauf
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Abstract
Packaging material formed from a substrate and three coating layers or in some instances at least three coating layers, each coating including an aqueous polymeric solution or dispersion dried to form a continuous film such that the packaging material is provided with tailored performance attributes including desired moisture vapor transmission rates, oxygen permeation rates, oil and grease resistance peel strength. The materials forming the packaging material may be compostable or biodegradable.
Claims20
A packaging material comprising a substrate and three coatings, with at least one coating applied to the substrate, each coating including an aqueous polymeric solution or dispersion dried to form a continuous film such that the packaging material has an oxygen transmission rate (OTR) between about 1 cc/m2/day to about 30 cc/m2/day.
A packaging material consisting essentially of a substrate and three coating layers, with at least one coating applied to the substrate, each coating including an aqueous polymeric solution or dispersion dried to form a continuous film such that the packaging material has an oxygen transmission rate (OTR) between about 1 cc/m2/day to about 30 cc/m2/day, a water vapor transmission rate (WVTR) between about 1 g/m2/day to about 75 g/m2/day, and an oil and grease resistance to provide less than about 10% staining.
The packaging material of claim 17 wherein the substrate comprises paper having a basis weight between about 10 lbs./3000 ft2 and about 50 lbs./3000 ft2.
Dependencies are inferred from the claim text.