Multi-layer lidding film with peel off and push through portions
AssigneeAmcor Flexibles North America, Inc.
InventorsJerome E. MCGINNIS, Heidi C. KOEHLER, Sierra SCHWIER, Denis L. SMITH, Marcus B. ZINK
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Abstract
The present invention discloses a child resistant lidding film with a unique structure, comprising a peel-off portion and a push-through portion. The peel-off portion includes a first layer composed of a blend of high-density polyethylene (HDPE) and hydrocarbon resin. The push-through portion includes a second layer comprising cyclic olefin copolymer (COC). Notably, the first layer is in direct contact with the second layer, providing a child resistant and convenient peel-push opening functionality for packaging applications.
Claims13
A peel-push lid for a blister package comprising:
- a peel off portion comprising a) a first layer comprising high-density polyethylene (HDPE) and hydrocarbon resin and b) an outer layer;
- a push through portion comprising a second layer comprising cyclic olefin copolymer (COC), the second layer in direct contact with the first layer;
- and
- an average interfacial bond strength between the first layer and the second layer is in a range of from 25 g/in (25 g/25.4 mm) to 400 g/in (400 g/25.4 mm) as measured by ASTM F88.
The peel-push lid of claim 9 wherein the outer layer comprises an HDPE polymer.
Dependencies are inferred from the claim text.