US Patent 10433578 Smoking article including a flavour delivery member

There is provided a filter (103) for a smoking article (100). The filter (103) comprises a filter segment (201) comprising filter material, and the filter segment (201) has a cross sectional area measured perpendicular to the longitudinal direction of the filter (103). The filter further comprises a flavor delivery member (205) embedded in the filter segment (201) and surrounded on all sides by the filter material (203). The flavor delivery member (205) comprises structural material enclosing liquid flavorant for flavoring smoke during smoking of a smoking article provided with the filter (103), and the flavor delivery member (205) releases at least a portion of the liquid flavorant when the filter (103) is subjected to external force. The cross sectional area of the flavor delivery member (205) measured perpendicular to the longitudinal direction of the filter (103) is about 30% of the cross sectional area of the filter segment (201) or greater.