Freezing agent and container

Details Freezing agent and container Freezing agent and container

1985-05-28

1986-07-01

Capossela, Ronald C.

Refrigeration

Storage of solidified or liquified gas

With sorbing or mixing

62 47, 62 48, 62384, 62457, 252 67, 252 71, F17C 700

Patent

active

045972664

ABSTRACT:
A freezing agent for maintaining supercold temperatures. Solid carbon dioxide is impregnated with liquid nitrogen so that the liquid nitrogen diffuses through the lattice of crystals making up the solid carbon dioxide. The liquid nitrogen maintains the solid carbon dioxide at supercold temperature for a long period of time. The nitrogen-impregnated solid carbon dioxide can be in the form of nuggets for lining or packing a cooling container, and a frozen biological sample can be maintained at supercold temperature within the container for many hours.

REFERENCES:
patent: 3065606 (1962-11-01), Reynolds
patent: 3393152 (1968-07-01), Smith et al.
patent: 3406532 (1968-10-01), Rownd et al.

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