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AssigneeAltria Client Services LLC
InventorsMunmaya K. Mishra, Alex Jordan, Kathryn M. Draper, Dwight D. Williams
Estimating the term…
A breakable capsule such as a seamless breakable capsule useful in a smoking article or a smokeless tobacco product includes an outer shell formed of a cross-linked agar matrix including at least one filler, and an inner core surrounded by the outer shell which comprises a liquid or gel based composition of a flavorant and/or non-flavorant. The cross-linked agar matrix is reinforced with carboxymethyl cellulose that is dispersed throughout the agar matrix so as to fill empty spaces in the agar matrix and inhibit the composition from passing through the empty spaces of the agar matrix.
A smoking article filter having a multi-stage flavorant delivery system, the smoking article filter comprising plug wrap surrounding filter material containing the multi-stage flavorant delivery system, the multi-stage flavorant delivery system comprising at least one pressure sensitive capsule containing a first flavorant and at least one heat sensitive capsule containing a second flavorant, the at least one heat sensitive capsule located upstream of the at least one pressure sensitive capsule, the at least one heat sensitive capsule configured to release the second flavorant by mainstream smoke passing through the smoking article filter and the at least one pressure sensitive capsule configured to release the first flavorant by manual rupture of an outer wall of the pressure sensitive capsule, the at least one heat sensitive capsule including a water soluble shell and a core containing tobacco extract as at least a part of the second flavorant, the at least one heat sensitive capsule embedded in a first filter segment including filter tow and the plug wrap surrounding the filter tow and the at least one pressure sensitive capsule embedded in a second filter segment including filter tow and the plug wrap surrounding the filter tow, wherein the at least one heat sensitive capsule has a smaller diameter and thinner shell than the at least one pressure sensitive capsule, and the at least one pressure sensitive capsule comprises an outer shell formed of a cross-linked agar matrix including at least one filler and an inner core which comprises a liquid or gel based composition of the first flavorant, wherein the cross-linked agar matrix is reinforced with carboxymethyl cellulose dispersed throughout the agar matrix so as to fill empty spaces in the agar matrix and inhibit the first flavorant from passing through the empty spaces.
A method of making a smoking article filter comprises wrapping first and second filter segments in plug wrap, wherein at least one pressure sensitive capsule is incorporated in the first filter segment and at least one heat sensitive capsule is incorporated in the second filter segment, the at least one heat sensitive capsule including a water soluble shell and a core containing tobacco extract as at least part of the second flavorant, the first filter segment including the at least one pressure sensitive capsule embedded in filter tow with the plug wrap surrounding the filter tow and the second filter segment including the at least one heat sensitive capsule embedded in filter tow with the plug wrap surrounding the filter tow, wherein the at least one heat sensitive capsule has a smaller diameter and thinner shell than the at least one pressure sensitive capsule, and the at least one pressure sensitive capsule comprises an outer shell formed of a cross-linked agar matrix including at least one filler and an inner core which comprises a liquid or gel based composition of the first flavorant, wherein the cross-linked agar matrix is reinforced with carboxymethyl cellulose dispersed throughout the agar matrix so as to fill empty spaces in the agar matrix and inhibit the first flavorant from passing through the empty spaces.
Dependencies are inferred from the claim text.