Smoking article filter including degradable filter component
AssigneePhilip Morris Products S.A.
InventorLeonardo Nappi
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Abstract
A filter for a smoking article includes a filter component formed from a solution of cellulose acetate and a degradable polymer in aceton, the degradable polymer being soluble in acetone and degrading in the presence of water. In a first aspect of the invention, the filter component is a filter segment (16) formed of a plurality of fibers formed from the degradable solution. In a second aspect of the invention, the filter component is a wrapper (39) circumscribing at least a segment of the filter.
Claims14
A filter for a smoking article, the filter including a filter component formed from a solution of cellulose acetate and a degradable polymer in acetone, the degradable polymer being soluble in acetone and degrading in the presence of water, wherein the degradable polymer is polylactic-co-glycolic acid.
Dependencies are inferred from the claim text.