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US 12,703,173 B2Granted
Fracture film for peelable membrane containers
AssigneeTOPPAN Packaging Americas Holdings, Inc.
InventorAllyson Smith
Life of this patent
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Abstract
The invention comprises a fracture film for sealing a peelable membrane to a container comprising a first layer of high density polyethelene, a second layer of polybutene-1/ethylene-vinyl acetate, wherein the second layer is bonded to the first layer, and a third layer of ethylene-acrylic acid, wherein the third layer is bonded to the second layer.
Claims8
A container comprising:
- a flexible membrane lid comprising:
- one or more adjacent layers comprising metal foil, polymer film, metalized polymer film or paper;
- and
- a fracture film adhered to the one or more adjacent layers comprising:
- a stiff polymeric layer;
- a fracture layer comprising a polymeric blend;
- and
- a sealing layer, wherein the fracture layer cohesively bonds the stiff layer and the sealing layer;
- and
- a container end which comprises a metal, wherein the sealing layer is sealed to the container end, wherein the fracture layer is configured to fracture internally upon peeling of the flexible membrane lid away from the end of the container.
7 more elements
Dependencies are inferred from the claim text.