SMOKING ARTICLE WITH IMPROVED EXTINGUISHING CHARACTERISTCS
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United States of America Patent
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Issued Date -
Jun 25, 2009
app pub date -
Dec 19, 2008
filing date -
Dec 20, 2007
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Abandoned
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Abstract
A smoking article includes a tobacco rod and a wrapper, wherein the wrapper includes at least one zone treated with an inorganic salt providing reduced ignition propensity. Preferably, the porosity of the wrapper in the treated zones is larger than 10 CU. Suitable inorganic salts are, e.g., magnesium chloride, aluminum sulfate, alum, sodium tetraborate, the hydrated forms of these compounds, sodium chloride, or mixtures thereof.
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