초록 ▼

The present invention provides reusable warmers of the supersaturated solution type that are substantially free of saddlebagging. The warmers also exhibit a more sustained period of time during which the heat pack remains within a therapeutically useful temperature range. The reusable warmers of the

The present invention provides reusable warmers of the supersaturated solution type that are substantially free of saddlebagging. The warmers also exhibit a more sustained period of time during which the heat pack remains within a therapeutically useful temperature range. The reusable warmers of the present invention also maintain a substantial degree of flexibility during their useful heat cycle. The reusable warmers comprise a flexible container, and located within said container, a supercooled salt solution, an activator for initiating crystallization of said supercooled salt solution, and a gelling agent, said gelling agent being present in sufficient quantity to convert said salt solution to a gel.

대표청구항 ▼

A reusable warmer comprising a flexible container, and located within said container, a [supercooled]super-cooled salt solution of sodium acetate, an activator for initiating crystallization of said [supercooled]super-cooled salt solution of sodium acetate, and a gelling agent, said gelling agent be

A reusable warmer comprising a flexible container, and located within said container, a [supercooled]super-cooled salt solution of sodium acetate, an activator for initiating crystallization of said [supercooled]super-cooled salt solution of sodium acetate, and a gelling agent, said gelling agent being present in sufficient quantity to convert said salt solution to a gel which remains deformable after crystallization of said salt solution. A heat pack comprising a flexible container, a super-cooled salt solution comprising a salt and a solvent located within said flexible container, an activator for initiating crystallization of said salt solution, and a gelling agent in sufficient quantity to convert said salt solution to a gel such that said gel remains deformable after crystallization of said salt solution.