Heat generation tool
AssigneeKobayashi Pharmaceutical Co., Ltd.
InventorDaisuke Nishioka
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Abstract
This invention provides a heating tool that is capable of significantly suppressing a reduction of an active ingredient contained in an adhesive layer. More specifically, the invention provides a heating tool comprising an exothermic composition containing an oxidation accelerator, an oxidizable metal powder, and water; an active ingredient-containing adhesive layer; and a vapor deposition layer, the exothermic composition being housed in an air-permeable container bag, the vapor deposition layer being disposed between the container bag and the adhesive layer.
Claims20
A heating tool comprising:
- an exothermic composition containing an oxidation accelerator, an oxidizable metal powder, and water;
- an active ingredient-containing adhesive layer;
- and
- a vapor deposition layer, the exothermic composition being housed in an air-permeable container bag, the vapor deposition layer being disposed between the container bag and the adhesive layer.
A method for suppressing a reduction of an active ingredient in a heating tool comprising an active ingredient-containing adhesive layer, the method comprising disposing a vapor deposition layer between the active ingredient-containing adhesive layer and a container bag housing an exothermic composition containing an oxidation accelerator, an oxidizable metal powder, and water.
Dependencies are inferred from the claim text.