Smoking article filter with flavorant delivery system
AssigneeAltria Client Services LLC
InventorsMunmaya K. Mishra, Alex Jordan, Kathryn M. Draper, Dwight D. Williams
Life of this patent
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Abstract
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.
Claims19
A smoking article filter having a flavorant delivery system, the smoking article filter comprising plug wrap surrounding filter material containing the flavorant delivery system, the flavorant delivery system comprising at least one pressure sensitive capsule containing a flavorant, the at least one pressure sensitive capsule configured to release the flavorant by manual rupture of an outer wall of the pressure sensitive capsule, the at least one pressure sensitive capsule embedded in a filter segment including filter tow and the plug wrap surrounding the filter tow, wherein 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 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 flavorant from passing through the empty spaces, and the at least one filler comprises locust bean gum.
A method of making a smoking article filter comprises wrapping a filter segment in plug wrap, wherein at least one pressure sensitive capsule containing a flavorant is incorporated in the filter segment, the filter segment including the at least one pressure sensitive capsule embedded in filter tow with the plug wrap surrounding the filter tow, wherein 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 as the 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 flavorant from passing through the empty spaces and the at least one filler comprises locust bean gum.
Dependencies are inferred from the claim text.