Heat-insulating packaging box

Details Heat-insulating packaging box Heat-insulating packaging box

1988-09-12

1989-11-28

Chambers, A. Michael

Receptacles

Receptacle having flexible, removable inner liner

Means for venting air trapped between the liner and its...

220438, 220440, 220901, B65D 100

Patent

active

048831964

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.

REFERENCES:
patent: 2329970 (1943-09-01), Zimmerman
patent: 3150794 (1964-09-01), Schlumberger et al.
patent: 3344973 (1967-10-01), Studen
patent: 4207827 (1980-06-01), Gondouin

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