Heating packet
OwnerKenji Otsuka, Yoshiki Matsumoto +2inventors
InventorsKenji Otsuka, Yoshiki Matsumoto, Koichi Yada, Koshi Ochi
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Abstract
The heating packet of the present invention comprises an air-permeable bag containing a heat-generating composition or a sheet-like heat-generating body which generates heat upon contacting oxygen in air. The heat-generating composition or the sheet-like heat-generating body contains zinc powder instead of iron powder. By the use of zinc powder, the heat-generating composition and the sheet-like heat-generating body can be maintained flexible during the use of the heating packet or after heat generation.
Claims19
A heating packet for heating physical body, comprising an air-permeable bag containing a heat-generating composition or a sheet-like heat-generating body which generates heat upon contacting oxygen in air, the heat-generating composition or the sheet-like heat-generating body containing zinc powder.
Dependencies are inferred from the claim text.