Cooling bag

Details Cooling bag Cooling bag

1994-03-31

1995-07-11

Sollecito, John M.

Refrigeration

Chemical reaction or solids dissolving

624579, 622593, F25D 500

Patent

active

054310229

ABSTRACT:
Endothermic reaction (dissolution) of endothermic material to be packed in a cooling bag is retarded to avoid a large temperature gradient which results in a meaningless intake of ambient heat quantity and an excessively low temperature condition, so as to keep an adequately cooled condition for a long period of time. Column-like or tablet-like endothermic materials are prepared from granular starting materials to decrease their specific surface area and solution velocity in water. The products, either as they are alone, together with water absorbing resins and/or their granular starting endothermic materials, or as a stored state in a perforated inner bag, are packed in a bag made of synthetic resin film.

REFERENCES:
patent: 2541736 (1951-02-01), Alexander
patent: 3175558 (1965-03-01), Caillouette et al.
patent: 4067313 (1978-01-01), Donnelly
patent: 4780117 (1988-10-01), Lahey et al.
patent: 4967573 (1990-11-01), Wilhelm

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