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US 12,075,821 B2Granted
Filter segment including a substrate loaded with a smoke-modifying agent
AssigneePhilip Morris USA Inc.
InventorsClement Besso, Charles Kuersteiner
Life of this patent
Estimating the term…
Abstract
A filter segment for use in a filter of a smoking article includes a substrate loaded with at least one smoke-modifying agent. The substrate is located within the body of the filter segment and is formed from filter plug wrap having an air permeability ranging from about 6,000 Coresta units to about 24,000 Coresta units.
Claims19
A filter for use in a tobacco article, the filter extending along a longitudinal axis and comprising:
- at least one plug of filter material, the filter material including,
- cellulose acetate;
- at least one filter segment adjacent to the at least one plug of filter material, the filter segment including,
- a plurality of granules;
- a hollow tube adjacent to one of the at least one plug of filter material and the at least one filter segment;
- and
- a substrate loaded with a menthol solution, the substrate extending through at least a portion of the filter, the substrate being formed of a twisted portion of a filter plug wrap, the twisted portion having a diameter of 1.3 mm.
4 more elements
A tobacco article comprising:
- a tobacco rod;
- and
- a filter attached to the tobacco rod, the filter extending along a longitudinal axis and including,
- at least one plug of filter material, the filter material including,
- cellulose acetate,
- at least one filter segment adjacent to the at least one plug of filter material, the filter segment including,
- a plurality of granules,
- a hollow tube adjacent to one of the at least one plug of filter material and the at least one filter segment, and
- a substrate loaded with a menthol solution, the substrate extending through at least a portion of the filter, the substrate being formed of a twisted portion of a filter plug wrap, the twisted portion having a diameter of 1.3 mm.
6 more elements
Dependencies are inferred from the claim text.