COMPOSITE HEAT SOURCE FOR A SMOKING ARTICLE
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United States of America Patent
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Dec 25, 2014
app pub date -
Dec 28, 2012
filing date -
Dec 29, 2011
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Abstract
A composite heat source for use in a smoking article is provided, including a non-combustible porous ceramic matrix; and a particulate combustible fuel embedded within the non-combustible porous ceramic matrix. The non-combustible porous ceramic matrix is formed from one or more particulate materials having a median D50 particle size at least five times less than the median D50 particle size of the particulate combustible fuel. Preferably, the non-combustible porous ceramic matrix includes one or more transition metal oxides.
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