Multiple film sheet for containers with peel-off lids
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United States of America Patent
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Sep 14, 2004
Grant Date -
Jun 12, 2003
app pub date -
Dec 5, 2002
filing date -
Dec 7, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A sheet composed of multiple films for providing peel-off lids for containers comprising a first film set of films, with a film layer of aluminum, an external polythene film and an internal orientated plastic film; a second film set heat-sealed to the edge of a container to be closed, with a pre-perforated polyester film coupled, by an adhesive, to a non-perforated polythene film heat-sealed to the edge of the container; and a hot-extruded polythene layer interposed between the two film sets to couple the last polyester film of the first film set and the first polyester film of the second film set.
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