Heat source for a smoking article

Details Heat source for a smoking article Heat source for a smoking article

A - Human Necessities

24

D

131/9

A24D 1/18 (2006.01) A24B 15/16 (2006.01) A24F 47/00 (2006.01)

Patent

CA 2004805

ABSTRACT (Fig.2) HEAT SOURCE FOR A SMOKING ARTICLE A heat source 20, when ignited, produces hot gases which release flavourant vapours from a flavourant bed 21. The mixed gases pass through an expansion chamber 12 to a mouthpiece 13. The heat source comprises metal carbides, preferably iron carbides Fez C and/or Fe5 C2, which ignite at relatively low temperatures (less than 550°C) and liberate substantially no carbon monoxide. The carbides are preferably in particulate form and may be mixed with carbon and held together by a binder. The heat source 20 is preferably cylindrical with air passages 22 running through it.

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