Formation and deposition of sputtered nanoscale particles in cigarette manufacture
AssigneePhilip Morris USA Inc.
InventorsRamkuber Yadav, Khaled Saoud, Firooz Rasouli, Mohammad Hajaligol
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Abstract
Nanoscale particles are formed and deposited in situ on tobacco cut filler, cigarette paper and/or cigarette filter materials by physical vapor deposition. The nanoscale particles are capable of acting as an oxidant for the conversion of carbon monoxide to carbon dioxide and/or as a catalyst for the conversion of carbon monoxide to carbon dioxide.
Claims32
A method of making a cigarette, comprising:
- (i) depositing nanoscale particles directly on a substrate selected from the group consisting of tobacco cut filler and cigarette paper;
- (ii) providing the tobacco cut filler to a cigarette making machine to form a tobacco column;
- and
- (iii) placing the cigarette paper around the tobacco column to form a tobacco rod of a cigarette, wherein the nanoscale particles are deposited by physical vapor deposition.
Tobacco cut filler comprising nanoscale particles wherein the nanoscale particles are formed and deposited directly on the tobacco cut filler by physical vapor deposition.
A cigarette comprising tobacco cut filler and cigarette paper, wherein at least one of the cut filler and cigarette paper comprises nanoscale particles formed and deposited directly on the at least one of tobacco cut filler and cigarette paper by physical vapor deposition.
Dependencies are inferred from the claim text.