Ventilated aerosol-generating article with upstream porous segment

Patent metadata

Field	Value
Publication number	US-2023112255-A1
Application number	US-202117904801-A
Country	US
Kind code	A1
Filing date	Feb 24, 2021
Priority date	Feb 28, 2020
Publication date	Apr 13, 2023
Grant date	—

Abstract

An aerosol-generating article is provided for producing an inhalable aerosol upon heating, the article including: a rod of aerosol-generating substrate; a downstream section at a location downstream of the rod and including: a support element located immediately downstream of the rod and being in longitudinal alignment with the rod and including a first hollow tubular segment, and an aerosol cooling element immediately downstream of the support element and in longitudinal alignment with the support element and the rod, the aerosol-cooling element including a second hollow tubular segment; a ventilation zone at a location along the second hollow tubular segment; and an upstream section at a location upstream of the rod and including an upstream element positioned immediately upstream of the rod and having a resistance-to-draw (RTD) of less than 80 millimetres H2O, in which the article has a ventilation level of at least 10 percent.

First claim

1 - 13 . (canceled)

14 . An aerosol-generating article for producing an inhalable aerosol upon heating, the aerosol-generating article comprising:
a rod of aerosol-generating substrate; a downstream section at a location downstream of the rod of aerosol-generating substrate, wherein the downstream section comprises:
a support element located immediately downstream of the rod of aerosol-generating substrate, the support element being in longitudinal alignment with the rod of aerosol-generating substrate and comprising a first hollow tubular segment, and
an aerosol cooling element immediately downstream of the support element and in longitudinal alignment with the support element and the rod of aerosol-generating substrate, the aerosol-cooling element comprising a second hollow tubular segment;
a ventilation zone at a location along the second hollow tubular segment; and an upstream section at a location upstream of the rod of aerosol-generating substrate, the upstream section comprising an upstream element positioned immediately upstream of the rod of aerosol-generating substrate and having a resistance-to-draw (RTD) of less than 80 millimetres H 2 O, wherein the aerosol-generating article has a ventilation level of at least 10 percent.

15 . The aerosol-generating article according to claim 14 , further comprising an elongate susceptor arranged longitudinally within the aerosol-generating substrate.

16 . The aerosol-generating article according to claim 15 , wherein the susceptor extends all the way to a downstream end of the rod of aerosol-generating substrate.

17 . The aerosol-generating article according to claim 14 , wherein the second hollow tubular segment defines a cavity extending all the way from a downstream end of the second hollow tubular segment to an upstream end of the second hollow tubular segment.

18 . The aerosol-generating article according to claim 14 , wherein the aerosol-generating article has a ventilation level of less than 40 percent.

19 . The aerosol-generating article according to claim 14 , wherein a resistance-to-draw (RTD) of the support element is less than 10 millimetres H 2 O and an RTD of the aerosol-cooling element is less than 10 millimetres H 2 O.

20 . The aerosol-generating article according to claim 14 ,
wherein the rod of aerosol-generating substrate comprises a gel composition that includes an alkaloid compound, or a cannabinoid compound, or both an alkaloid compound and a cannabinoid compound, or wherein the aerosol-generating substrate comprises a homogenised plant material comprising non-tobacco plant flavour particles.

21 . The aerosol-generating article according to claim 14 , wherein the ventilation zone comprises one or more rows of perforations formed through a peripheral wall of the second hollow tubular segment.

22 . The aerosol-generating article according to claim 21 , wherein the one or more rows of perforations are arranged circumferentially around the peripheral wall of the second hollow tubular segment.

23 . The aerosol-generating article according to claim 22 , wherein the ventilation zone further comprises two or more rows of perforations, the rows being longitudinally spaced apart from one another along the second hollow tubular segment.

24 . The aerosol-generating article according to claim 21 , wherein an equivalent diameter of at least one of the ventilation perforations is at least 150 micrometres.

25 . The aerosol-generating article according to claim 14 , wherein the upstream element has a length of less than 10 millimetres.

Assignees

• Philip Morris Products Sa

Inventors

• Bertoldo Massimiliano
• Lhaou Ayoub
• Montanari Edoardo
• Uthurry Jerome
• Nesovic Milica

Classifications

• H05B6/105

  using a susceptor · CPC title

• A24D1/18

  Selection of materials, other than tobacco, suitable for smoking · CPC title

• A24B15/302

  by natural substances obtained from animals or plants · CPC title

• A24D3/043

  with ventilation means, e.g. air dilution (A24D3/041 takes precedence) · CPC title

• A24D1/027

  with ventilating means, e.g. perforations · CPC title