HEATING ELEMENT
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United States of America Patent
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-
N/A
Issued Date -
Feb 3, 2011
app pub date -
Feb 19, 2009
filing date -
Mar 31, 2008
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A heating element has an exothermic composition that generates heat by contact with air. The exothermic composition is sealed in an air-permeable bag that has an outer face made of a fibrous sheet. The air-permeable bag is formed of a laminate obtained by layering a resin film on the fibrous sheet. The laminate is formed by discontinuously bonding the fibrous sheet and the resin film. The filing rate of the exothermic composition ranges from 4 to 95%.
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