Smoking article

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A - Human Necessities

24

D

131/8

A24D 1/00 (2006.01) A24F 47/00 (2006.01)

Patent

CA 2002221

ABSTRACT A cigarette provides tobacco flavor by heating tobacco, but not burning tobacco or any other material. A heat source which includes a metal oxide (eg., calcium oxide), an anhydrous metal sulfate (eg., magnesium sulfate), an inorganic salt and a sugar generates heat upon contact of water therewith. The heat produced by the heat source heats tobacco in a heat exchange relationship therewith. Flavours volatilize from the tobacco and are drawn into the mouth of the user of the cigarette. Typical heat sources heat the tobacco to a temperature within 70°C to 200°C for 4 to 8 minutes.

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