US 4,920,990 AGranted

Cigarette

AssigneeR. J. Reynolds Tobacco Company

InventorsBrian M. Lawrence, Robert F. Moates, Thomas A. Perfetti, Renee M. Pogrow, Robert H. Powell, Jerry W. Redding, Cynthia A. Stewart, Karen M. Womble, Milly M. L. Wong

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Abstract

Cigarettes have a smokable filler blend comprising 60 to 75 percent tobacco cut filler and 25 to 40 percent of a second smokable cut filler consisting essentially of 50 to 70 percent calcium carbonate, 15 to 45 percent pyrolyzed cotton linters, and 7 to 12 percent polysaccharide binder. The blend is contained in a paper wrapper having a permeability from about 40 to about 75 CORESTA units. Cigarettes normally include a filter element and are air diluted to an air dilution level of from 40 to 65 percent. The smokable blend preferably is blended with a tobacco essence, and the nicotine content of the blend is greater than 2 percent. Cigarettes exhibit resistances to draw between 80 and 150 mm water pressure drop at 17.5 cc/sec. air flow. Cigarettes exhibit FTC "tar" to nicotine ratios less than 9.

Claims29

Dependent claims

A cigarette having smokable material contained in a circumscribing outer wrapping material, the cigarette exhibiting a ratio of FTC "tar" to FTC nicotine of less than 9 and a resistance to draw between 50 and 200 mm water pressure drop at 17.5 cc/sec. air flow;

and having:
(a) smokable filler material comprising (i) from about 40 to about 85 weight percent tobacco filler material, and (ii) about 15 to about 60 weight percent of another smokable material having from about 40 to about 80 weight percent inorganic material, from about 10 to about 50 weight percent carbonaceous material, and from about 5 to about 15 weight percent binding agent;
(b) wrapping material circumscribing the smokable filler and having a permeability from about 5 to about 75 CORESTA units;
(c) air dilution between about 25 and about 75 percent;
and
(d) a nicotine content greater than about 2 percent, based on the dry weight of the smokable material.

3 more elements

Dependencies are inferred from the claim text.