Deformable bag for use as cooling medium

Details Deformable bag for use as cooling medium Deformable bag for use as cooling medium

1984-03-28

1985-07-23

King, Lloyd L.

Refrigeration

Refrigerant or coolant, storer or handler

Envelope type

62457, F25D 308

Patent

active

045302200

ABSTRACT:
According to the invention, a deformable bag for use as a cooling medium is provided. The bag comprises small pieces of gel packed in a flexible envelope. The gel is prepared by casting into a mold an aqueous solution or suspension containing a polyvinyl alcohol and a water-soluble organic compound, and cooling the cast aqueous solution or suspension to -10.degree. C. or lower and then partially, dehydrating, without thawing, the thus obtained cooled mass in vacuum. The bag of the invention can be applied on different objects or portions having various configurations.

REFERENCES:
patent: 2697424 (1954-12-01), Hanna
patent: 3258065 (1966-06-01), Ward
patent: 4404820 (1983-09-01), Romaine

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