| 摘要 |
The present invention provides reusable warmers of the supersaturated solution type that are substantially free of saddlebagging. The reusable warmers comprise a flexible container, and located within the container, a supercooled salt solution, an activator for initiating crystallization of the supercooled salt solution, and a gelling agent, the gelling agent being present in sufficient quantity to convert the salt solution to a gel.
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