Polymeric coating for container induction innerseal
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United States of America Patent
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Sep 20, 1988
Issued Date -
N/A
app pub date -
Dec 4, 1986
filing date -
Apr 12, 1985
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Tamper-resistant inner seals that bond firmly to the lips of lidded and capped glass and plastic containers. The innerseals incorporate a metallic foil having a heat-sealable adhesive applied to one surface thereof. The heat-sealable adhesive comprises a paraffin wax or blend of paraffin wax and microcrystalline wax, polystyrene or derivative thereof, rosin or derivative thereof, and at least one high molecular weight polymeric material selected from the group consisting of ethylene/acrylic acid copolymers, ethylene/vinyl acetate copolymers, ethylene/methacrylate copolymers, and ethylene/vinyl acetate/methacrylic acid terpolymers, and blends thereof.
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