US 12,471,619 B2
Aerosol-generating substrate comprising an aerosol-generating film
Sebastien Capelli, Neuchatel (CH); Onur Dayioglu, Neuchatel (CH); Robert Emmett, Neuchatel (CH); and Jean-Yves Vollmer, Neuchatel (CH)
Assigned to Philip Morris Products S.A., Neuchatel (CH)
Appl. No. 17/602,114
Filed by Philip Morris Products S.A., Neuchatel (CH)
PCT Filed Mar. 18, 2020, PCT No. PCT/EP2020/057507
§ 371(c)(1), (2) Date Oct. 7, 2021,
PCT Pub. No. WO2020/207733, PCT Pub. Date Oct. 15, 2020.
Claims priority of application No. 19167966 (EP), filed on Apr. 8, 2019.
Prior Publication US 2022/0175017 A1, Jun. 9, 2022
Int. Cl. A24B 15/167 (2020.01); A24B 15/32 (2006.01); A24D 1/18 (2006.01); A24D 1/20 (2020.01); A24F 40/20 (2020.01); A24F 40/46 (2020.01)
CPC A24B 15/167 (2016.11) [A24B 15/32 (2013.01); A24D 1/18 (2013.01); A24D 1/20 (2020.01); A24F 40/20 (2020.01); A24F 40/46 (2020.01)] 22 Claims
OG exemplary drawing
 
1. An aerosol-generating article comprising a rod of aerosol-generating substrate, wherein the rod of aerosol-generating substrate comprises:
an aerosol-generating film comprising at least 25 percent by weight of a polyhydric alcohol and at least 10 percent by weight of a cellulose based film-forming agent,
wherein the aerosol-generating film is configured such that an exposed surface area of the aerosol-generating film within the aerosol-generating substrate is at least 5 square millimeters per mg of the aerosol-generating film,
wherein the aerosol-generating film is substantially tobacco-free, and
wherein the cellulose based film-forming agent is selected from the group consisting of hydroxypropyl methylcellulose (HPMC), methylcellulose (MC), ethylcellulose (EC), hydroxyethyl methyl cellulose (HEMC), hydroxyethyl cellulose (HEC), hydroxypropyl cellulose (HPC), and combinations thereof.