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US 4,836,224 AGranted
Cigarette
AssigneeR. J. Reynolds Tobacco Company
InventorsJerry W. Lawson, Bruce R. Bullings, Thomas A. Perfetti
Life of this patent
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AssigneeR. J. Reynolds Tobacco Company
InventorsJerry W. Lawson, Bruce R. Bullings, Thomas A. Perfetti
Estimating the term…
Cigarettes having high nicotine content tobacco cut filler are rendered smooth smoking and palatable by incorporating an organic acid additive therein. For example, a cigarette having a cut filler with a blend nicotine content of greater than 2 percent has at least one organic acid additive incorporated into the cigarette in an amount of greater than 1 percent. Smooth smoking cigarettes yielding good tobacco taste and minimal off-taste are provided when the majority of the organic acid additive is levulinic acid. The levulinic acid can be in a dissociated and/or nondissociated form. For cigarettes having filter elements, at least a portion of the levulinic acid can be present in the filter element. Alternatively, cigarettes can have at least a portion of the levulinic acid provided in the form of nicotine levulinate. Cigarettes having high nicotine content tobaccos and levulinic acid and cigarettes having a salt such as nicotine levulinate incorporated therein can exhibit low FTC "tar" to nicotine ratios while providing a smooth, palatable and flavorful taste.
A cigarette having smokable material contained in a circumscribing outer wrapping material, the cigarette having (i) a nicotine content greater than about 2 percent, based on the dry weight of the smokable material, and (ii) levulinic acid in dissociated and/or nondissociated form incorporated therein in an amount greater than about 1 percent, based on the dry weight of the smokable material.
A cigarette having smokable material contained in a circumscribing outer wrapping material, the cigarette having (i) a nicotine content greater than about 2.25 percent, based on the dry weight of the smokable material, and (ii) levulinic acid in dissociated and/or nondissociated form incorporated therein in an amount greater than about 1 percent, based on the dry weight of the smokable material.
A cigarette having smokable material contained in a circumscribing outer wrapping material, the cigarette having (i) a nicotine content greater than about 2.5 percent, based on the dry weight of the smokable material, and (ii) levulinic acid in dissociated and/or nondissociated form incorporated therein in an amount greater than about 1 percent, based on the dry weight of the smokable material.
A cigarette having smokable material contained in a circumscribing outer wrapping material, the cigarette having (i) a nicotine content greater than about 3 percent, based on the dry weight of the smokable material, and (ii) levulinic acid in dissociated and/or nondissociated form incorporated therein in an amount greater than about 1 percent, based on the dry weight of the smokable material.
Dependencies are inferred from the claim text.