Exothermic body
AssigneeMitsubishi Gas Chemical Company, Inc.
InventorsTakashi Seike, Takehiko Kobayashi
Life of this patent
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Abstract
The present invention provides an exothermic body for use of an insole of shoes and so forth with elasticity, softness and flexibility, the exothermic heat of which is distributed uniformly along the entire area thereof. The exothermic body includes a foamed plastic sheet having cells therein, the cells being filled with an exothermic agent such as a mixture of iron, saline solution, activated carbon and woodmeal or pulp powder. The foamed plastic sheet is covered by an air-permeable thin film such as a thin perforated plastic film. A cushion material is provided on at least one surface of the foamed plastic sheet covered with the air-permeable thin film and the foamed plastic sheet together with the cushion material is covered by an air-permeable film cover.
Claims13
An exothermic body comprising:
- a foamed plastic sheet having cells therein;
- an exothermic agent filled in said cells;
- an air-permeable thin film fixed on a surface of said foamed plastic sheet and covering said foamed plastic sheet;
- a cushion material provided on at least one surface of said foamed plastic sheet covered with said air-permeable thin film;
- and
- an air-permeable film cover covering said foamed plastic sheet and said cushion material in layer.
Dependencies are inferred from the claim text.