Heat-insulating packaging box
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United States of America Patent
Stats
-
Nov 28, 1989
Grant Date -
N/A
app pub date -
Sep 12, 1988
filing date -
Sep 11, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A packaging box is used for packaging frozen food with an improved heat-insulating property. The movement of air surrounded by a corrugated core of a conventional corrugated card-board is interrupted, thereby enhancing the heat-insulating property. The air is prevented from permeating through the corrugated property. Further in order to improve the heat-insulating property, laminated aluminum foil is used.
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Family
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Cited Art Landscape
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