US 12,225,930 B2
Aerosol-generating article with narrow hollow tubular filter
Frederic Lavanchy, Chavornay (CH); Michel Bessant, Neuchatel (CH); Silviu Natanael Pantea, Neuchatel (CH); and Johannes Petrus Maria Pijnenburg, Neuchatel (CH)
Assigned to Philip Morris Products S.A., Neuchatel (CH)
Appl. No. 17/298,840
Filed by Philip Morris Products S.A., Neuchatel (CH)
PCT Filed Dec. 4, 2019, PCT No. PCT/EP2019/083700
§ 371(c)(1), (2) Date Jun. 1, 2021,
PCT Pub. No. WO2020/115147, PCT Pub. Date Jun. 11, 2020.
Claims priority of application No. 18210862 (EP), filed on Dec. 6, 2018.
Prior Publication US 2022/0030939 A1, Feb. 3, 2022
Int. Cl. A24F 40/20 (2020.01); A24D 1/20 (2020.01); A24D 3/06 (2006.01); A24D 3/17 (2020.01)
CPC A24D 3/17 (2020.01) [A24D 1/20 (2020.01); A24D 3/062 (2013.01); A24F 40/20 (2020.01)] 16 Claims
OG exemplary drawing
 
1. A system comprising an aerosol-generating article and a mouthpiece configured attachable to the aerosol-generating article, wherein the mouthpiece comprises a venturi section, the aerosol-generating article comprising:
a substrate portion containing aerosol-forming substrate; and
a hollow tubular filter portion,
wherein the hollow tubular filter portion has an inner diameter of between 0.5 millimeters and 2 millimeters, and
wherein the aerosol-forming substrate comprises at least one aerosol-former selected from the group consisting of: polyhydric alcohols, esters of polyhydric alcohols, and aliphatic esters of mono-, di-, or polycarboxylic acids.