Reduction of carbon monoxide and nitric oxide in smoking articles using nanoscale particles and/or clusters of nitrided transition metal oxides
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United States of America Patent
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Aug 16, 2011
Grant Date -
Jun 3, 2010
app pub date -
Feb 3, 2010
filing date -
Oct 27, 2003
priority date (Note) -
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Abstract
Smoking article components, cigarettes, methods for making cigarettes and methods for smoking cigarettes are provided that use nitrided transition metal oxide nanoscale particles and/or nitrided transition metal oxide clusters capable of catalyzing and/or oxidizing carbon monoxide to carbon dioxide and/or adsorbing carbon monoxide and catalyzing and/or reducing nitric oxide to nitrogen and/or adsorbing nitric oxide. Cut filler compositions, cigarette paper and cigarette filter material can comprise nitrided transition metal oxide nanoscale particles and/or nitrided transition metal oxide clusters.
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