Heating implement
AssigneeKao Corporation
InventorYasuhiro Shidahara
Life of this patent
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Abstract
A warming device including a heat generating element that contains a powder of an oxidizable metal, a powder of a carbon material, water, and a powder of a porous material other than the oxidizable metal and the carbon material. The heat generating element is a sheet material, and in the heat generating element, a ratio of the mass content of the water to the mass content of the powder of the oxidizable metal multiplied by one hundred [100×(water/powder of oxidizable metal)] is from 30 to 270.
Claims15
A warming device comprising a heat generating element that contains a powder of an oxidizable metal, a powder of a carbon material, water, and a powder of a porous material other than the oxidizable metal and the carbon material,
- wherein the heat generating element is a sheet material, and
- in the heat generating element, a ratio of the mass content of the water to the mass content of the powder of the oxidizable metal multiplied by one hundred [100×(water/powder of oxidizable metal)] is from 30 to 270.
A warming device comprising a heat generating element that contains a powder of an oxidizable metal, a powder of a carbon material, water, and a powder of a porous material other than the oxidizable metal and the carbon material,
- wherein the heat generating element is a sheet material, and
- in the heat generating element, a ratio of the mass content of the powder of the porous material to the mass content of the powder of the oxidizable metal multiplied by one hundred [100×(powder of porous material/powder of oxidizable metal)] is from 1 to 25.
A warming device comprising a heat generating element that contains a powder of an oxidizable metal, a powder of a carbon material, water, and a powder of a porous material other than the oxidizable metal and the carbon material,
- wherein the heat generating element is a sheet material, and
- in the heat generating element, a ratio of the mass content of the powder of the porous material to the mass content of the water multiplied by one hundred [100×(powder of porous material/water)] is from 1 to 30.
A warming device comprising a heat generating element that contains a powder of an oxidizable metal, a powder of a carbon material, water, and calcium silicate,
- wherein the heat generating element is a sheet material, and
- in the heat generating element, a ratio of the mass content of the water to the mass content of the powder of the oxidizable metal multiplied by one hundred [100×(water/powder of oxidizable metal)] is from 30 to 270.
Dependencies are inferred from the claim text.