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US 2023/0121740 A1Published application
Peelable resealable membrane for containers
AssigneeSonoco Development, Inc.
InventorScott William Huffer
Life of this patent
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Abstract
The invention comprises a peelable membrane for resealably closing a metal end comprising an outer layer, a tacky layer, and a heat seal layer. The heat seal layer is permanently sealed to the metal end to cover at least one opening in the metal end. The tacky layer causes the peelable membrane to be resealable onto the metal end.
Claims15
A method for manufacturing a container end having a peelable membrane comprising:
- coextruding a first layer, a tacky layer, and a heat seal layer to form a peelable membrane sheet;
- heating a metal end which defines at least one opening;
- applying the peelable membrane sheet to the heated metal end such that it covers the at least one opening;
- applying pressure to one of the peelable membrane sheet and the metal end to seal the peelable membrane sheet to the metal end;
- and
- scoring the peelable membrane sheet which is affixed to the metal end to form a peelable membrane lid and a tab.
3 more elements
Dependencies are inferred from the claim text.