Philip Morris Products S.a.

Stefanos Papakyrillou

Alen Kadiric

Yves Jordil

Leonardo Nappi

Thierry Joyeux

Ping Li

An aerosol-generating article defining a longitudinal direction extending between an upstream end and a downstream end is provided, including: a plug of aerosol-forming substrate at the upstream end; a hollow tubular support element positioned immediately downstream of the plug; and a filter segment at the downstream end of the article and positioned immediately downstream of the element, the article having a length extending in the longitudinal direction, the plug having a length extending in the longitudinal direction, the element having a length extending in the longitudinal direction between a first end of the element and a second end of the element, a ratio of the length of the element to the length of the article is between 0.3 to 1 and 0.5 to 1, and a ratio of the length of the plug to the length of the element is between 0.5 to 1 and 0.8 to 1.

Aerosol-generating article having a tubular support element

An aerosol-generating article for producing an inhalable aerosol upon heating is provided, including: a rod of aerosol-generating substrate; a mouthpiece segment including a plug; a tubular support element between the rod and the segment and being in longitudinal alignment therewith, arranged immediately downstream of the rod, defining an airflow conduit, and including a cylindrical peripheral wall, a portion of the element projecting inwardly and delimited at an upstream end by a surface spaced from a transverse plane tangent to an upstream end surface of the wall; and a recess defined by the element and being between a downstream end surface of the rod and an upstream end surface of the element, extending longitudinally from a downstream end of the recess to the segment, being less than 10 percent of a length of the article, and a cross-sectional area of the recess changing along a length of the recess.

Aerosol-generating article having a recessed supporting component

There is provided an aerosol-generating article () comprising an aerosol-generating substrate () and a filter () in axial alignment with the aerosol-generating substrate (). The filter () comprises at least one segment of filtration material formed of one or more sheets of a fibrous paper-like material. The fibrous paper-like material comprises a combination of hydrophobic fibres and hydrophilic fibres such that the fibrous paper-like material has a water contact angle as measured in accordance with TAPPI/ANSI T 558 om-15 greater than 90 degrees. Further, the fibrous paper material has a biodegradability in aqueous medium as tested in accordance with ISO 14851 (2005) of at least 90 percent of the maximum degradation of a cellulose reference item within 56 days of testing. In addition, the hydrophobic fibres comprise hydrophobic viscose fibres.

Aerosol-generating article having biodegradable filtration material

An aerosol generating article () comprises: an aerosol generating substrate (); a filter () in axial alignment with the aerosol generating substrate, the filter () comprising at least one water dispersible filter component (), wherein the filter component is water dispersible under the test conditions of EN 14987:2006; and a tipping wrapper () wrapped around the filter () and at least a portion of the aerosol generating substrate (). The tipping wrapper () comprises: a first weakening line () extending around at least a portion of the tipping wrapper (); a removable tipping wrapper portion () extending downstream from the at least one weakening line () and at least partially overlying the water dispersible filter component (); and an upstream tipping wrapper portion () extending upstream from the first weakening line (), wherein the upstream tipping wrapper portion () is attached to a downstream portion of the aerosol generating substrate () and an upstream portion of the filter ().

Aerosol generating article having water dispersible filter component

A smoking article includes a smokable material and a filter comprising filtration material that is downstream of the smokable material. The filtration material comprises a sheet of hydrophobic cellulosic material with hydrophobic groups covalently bonded to the cellulosic material.

Hydrophobic filter

A smoking article comprises a tobacco rod and a filter component. The filter component comprises a first filter segment of filtration material having a diameter measured perpendicular to a longitudinal direction of the filter, and a flow restrictor embedded in the filter segment. At least one cross sectional dimension of the flow restrictor, measured in a transverse direction of the filter segment, is at least about 50 percent of the diameter of the filter segment. The flow restrictor is made from an air-impermeable, non-compressible and water-soluble or water-dissolvable material. Further, the flow restrictor comprises a composition that promotes degradation of the filtration material.

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Cortaillod, Switzerland

Stefanos Papakyrillou