Multiple layer packaging sheet material
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United States of America Patent
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-
Mar 3, 1992
Issued Date -
N/A
app pub date -
Dec 23, 1987
filing date -
Nov 29, 1985
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Packaging sheet materials 10 and packages having improved impact/shock tolerance as measured in a slope drop test. The sheet materials comprise an impact layer 12 of a blend of polypropylene and a polymer providing elastomeric properties between a sealant substructure 14 and a substrate substructure 16.
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Cited Art Landscape
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