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US 10,555,553 B2Granted
Filter with improved hardness and filtration efficiency
AssigneePhilip Morris Products S.A.
InventorsEnrico Binassi, Yves Jordil
Life of this patent
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Abstract
There is provided a smoking article comprising an aerosol generating substrate and a mouthpiece attached to the aerosol generating substrate. The mouthpiece includes a segment comprising a filtration material comprising polylactic acid, and an additive for reducing phenols. The mouthpiece further comprises one or more wrappers circumscribing the segment, the one or more wrappers have a combined basis weight of at least about 50 grams per square metre (gm-2).
Claims16
A smoking article comprising:
- an aerosol generating substrate;
- and
- a mouthpiece attached to the aerosol generating substrate, the mouthpiece comprising a segment comprising:
- a filtration material comprising polylactic acid;
- and
- an additive for reducing phenols;
- wherein the additive comprises a mixture of triacetin with cellulose acetate flakes.
4 more elements
Dependencies are inferred from the claim text.