Patent ID: 11939131
Assignee: TEKNI-PLEX, INC.
Field: Handling (Mechanical engineering)
Classification: CPC B  A  Y | IPC B

Claim 0:
1. A halogen-free recyclable moisture barrier blister package comprising a lidding film and a base, the base having a plurality of base cavities each configured to hold an individual product portion, the lidding film and base being heat sealed together about a perimeter of each of the plurality of base cavities, and:
the base comprises a thermoformed sheet having one or more layers of cyclic olefin copolymer (COC) in combination with one or more layers of polyolefin;
the lidding film comprises a laminated or extruded sheet having one or more layers of polyolefin, or one or more layers of polyolefin in combination with one or more layers of COC;
wherein the lidding film and base have adjacent polyolefin layers heat sealing the lidding film around the perimeter of each base cavity;
the combination of the base and the lidding film is recyclable in a single plastic polyolefin waste stream based on the polyolefin layer(s) of the lidding film and/or the base;
the package has a moisture vapor transmission rate (MVTR) measured via a 5-week weight gain test at 40° C. and 75% relative humidity (RH) as defined in ASTM D7709 of no greater than 2 milligram per cavity per 24 hours for a standard capsule size 0 cavity;
wherein the polyolefin is polypropylene (PP) or polyethylene (PE), and the lidding film and base are recyclable in a single plastic waste stream, namely a PP or PE plastic waste stream depending on the type of polyolefin (PP or PE).