Reduction of carbon monoxide in smoking articles using transition metal oxide clusters
AssigneePhilip Morris USA Inc.
InventorsBudda V. Reddy, Firooz Rasouli, Mohammad R. Hajaligol, S. N. Khanna
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Abstract
Smoking article components, cigarettes, methods for making cigarettes and methods for smoking cigarettes are provided that use transition metal oxide clusters capable of catalyzing and/or oxidizing the conversion of carbon monoxide to carbon dioxide and/or adsorbing carbon monoxide. Cut filler compositions, cigarette paper and cigarette filter material can comprise transition metal oxide clusters.
Claims60
A component of a smoking article comprising clusters of transition metal oxides, wherein the component is selected from the group consisting of tobacco cut filler, cigarette paper and cigarette filter material.
A cigarette comprising a tobacco rod, cigarette paper and an optional filter, wherein at least one of the tobacco rod, cigarette paper and optional filter comprise clusters of transition metal oxides.
A method for incorporating transition metal oxide clusters in and/or on a component of a cigarette comprising:
- supporting the component in a chamber having a target;
- bombarding the target with energetic ions to form transition metal oxide clusters;
- and
- depositing the transition metal oxide clusters on a surface of the component in order to incorporate the transition metal oxide clusters in and/or on the component, wherein the component is selected from the group consisting of tobacco cut filler, cigarette paper and cigarette filter material.
A method of making a cigarette, comprising:
- (i) incorporating transition metal oxide clusters in and/or on a component of a cigarette selected from the group consisting of tobacco cut filler, cigarette paper and cigarette filter material;
- (ii) providing the tobacco cut filler to a cigarette making machine to form a tobacco column;
- (iii) placing the cigarette paper around the tobacco column to form a tobacco rod of a cigarette, and
- (iv) optionally tipping the tobacco rod with a cigarette filter comprising the cigarette filter material.
A method for incorporating transition metal oxide clusters in and/or on a component of a smoking article comprising spraying, dusting and/or mixing the transition metal oxide clusters with the component, wherein the component is selected from the group consisting of tobacco cut filler, cigarette paper and cigarette filter material.
Dependencies are inferred from the claim text.