US 12,102,122 B2
Aerosol-generating article with enhanced vapor production
Jung Kyu Seo, Daejeon (KR); Tae Chul Shin, Daejeon (KR); Hee Tae Jung, Daejeon (KR); and Young Rim Han, Daejeon (KR)
Assigned to KT&G CORPORATION, Daejeon (KR)
Appl. No. 17/431,602
Filed by KT&G CORPORATION, Daejeon (KR)
PCT Filed Mar. 8, 2021, PCT No. PCT/KR2021/002809
§ 371(c)(1), (2) Date Aug. 17, 2021,
PCT Pub. No. WO2021/256664, PCT Pub. Date Dec. 23, 2021.
Claims priority of application No. 10-2020-0072128 (KR), filed on Jun. 15, 2020.
Prior Publication US 2022/0400751 A1, Dec. 22, 2022
Int. Cl. A24F 40/40 (2020.01); A24F 40/20 (2020.01)
CPC A24F 40/40 (2020.01) [A24F 40/20 (2020.01)] 12 Claims
OG exemplary drawing
 
1. An aerosol-generating article comprising:
a medium portion;
a support structure which is disposed downstream of the medium portion and includes a first tubular structure having a first hollow;
a cooling structure which is disposed downstream of the support structure and includes a second tubular structure which has a second hollow and is made of a cellulose acetate material; and
a mouthpiece portion which is disposed downstream of the cooling structure,
wherein an upstream end of the second tubular structure abuts a downstream end of the first tubular structure,
the first tubular structure contains a plasticizer, and
an average cross-sectional area of the second hollow is larger than an average cross-sectional area of the first hollow.