Deformable bag for use as cooling medium.

摘要

The bag (10) comprises small pieces (1) of a gel packed in a flexible envelope (2). 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 DEG 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.