Packaging films
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United States of America Patent
Stats
-
Jun 28, 1994
Grant Date -
N/A
app pub date -
Jun 12, 1992
filing date -
Jun 12, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A lidstock film adapted to form a peelable seal with a substrate upon heat sealing comprises, a first layer of high density polyethylene, a second layer of ethylene vinyl acetate, and a third seal layer of a blend of a polyionomer and a low density polyethylene is disclosed. Also disclosed is a forming web adapted to form a peelable seal with a lidstock upon heat sealing, the forming web comprising a first seal layer of a mixture of a rubber and ethylene vinyl acetate, a second layer of a mixture of ethylene vinyl acetate and a linear low density polyethylene, and a third layer comprising linear low density polyethylene. The lidstock film and forming web are heat sealable at temperatures between 250.degree. F. and 350.degree. F. to form packages with peelable seals.
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