Aerosol generating article including thermally conductive wrapper

Patent metadata

Field	Value
Publication number	US-12532909-B2
Application number	US-202017432713-A
Country	US
Kind code	B2
Filing date	Jul 31, 2020
Priority date	Aug 8, 2019
Publication date	Jan 27, 2026
Grant date	Jan 27, 2026

Abstract

The present disclosure relates to an aerosol generating article for use with an aerosol generating device, and to an aerosol generating article including a thermally conductive wrapper. An aerosol generating article according to one aspect includes an aerosol substrate section containing an aerosol generating material without nicotine, a medium disposed toward a downstream end of the aerosol substrate section and containing nicotine, a cooler disposed toward a downstream end of the medium, a filter disposed toward a downstream end of the cooler, and a wrapper surrounding at least part of the aerosol generating article, wherein the wrapper includes a thermally conductive wrapper surrounding at least part of the aerosol substrate section and the medium.

First claim

The invention claimed is:

1 . An aerosol generating system comprising:
an aerosol generating article for generating aerosol when heated, the aerosol generating article comprising:
an aerosol substrate section containing an aerosol generating material without nicotine;
a medium disposed to face a downstream end of the aerosol substrate section and containing nicotine;
a cooler disposed to face a downstream end of the medium;
a filter disposed to face a downstream end of the cooler; and
a thermally conductive wrapper surrounding at least part of the aerosol substrate section and the medium and comprising a first portion and a second portion that do not overlap each other; and
a single heater that is configured to generate heat outside of the aerosol generating article that heats the aerosol generating article, wherein the aerosol substrate section is surrounded by the first portion, wherein the medium is surrounded by the second portion or at least part of the first portion and the second portion, wherein each of the first portion and the second portion further comprises a thermally conductive material, and wherein the first portion and the second portion have different thermal conductivities from each other such that the aerosol substrate section and the medium are heated to different temperatures by the single heater through the first portion and the second portion.

2 . The aerosol generating system of claim 1 , wherein one of the first portion and the second portion has a greater amount of thermally conductive material per unit area than the other of the first portion and the second portion.

3 . The aerosol generating system of claim 1 , wherein the first portion includes a first sub-portion surrounding the aerosol substrate section and a second sub-portion surrounding part of the medium,
wherein each of the first sub-portion and the second sub-portion are thermally conductive, and wherein the second portion surrounds a remaining portion of the medium that is not surrounded by the second sub-portion of the first portion.

4 . The aerosol generating system of claim 3 , wherein the second sub-portion extends from an upstream end of the medium to a downstream end of the medium.

5 . The aerosol generating system of claim 3 , wherein at least part of the second sub-portion has a non-uniform width.

6 . The aerosol generating system of claim 3 , wherein the second portion is disposed between the first sub-portion and the second sub-portion.

7 . The aerosol generating system of claim 3 , wherein the second sub-portion has a higher thermal conductivity than the second portion.

8 . The aerosol generating system of claim 3 , wherein the second sub-portion has a lower thermal conductivity than the second portion.

9 . The aerosol generating system of claim 5 , wherein a width of the part of the second sub-portion in a circumferential direction of the thermally conductive wrapper increases in a downstream direction of the aerosol generating article.

10 . The aerosol generating system of claim 6 , wherein the second portion has a lower thermal conductivity than the first sub-portion and the second sub-portion.

Assignees

• Kt & G Corp

Inventors

• Ki Sung Jong
• Kim Young Joong
• Park In Su
• Lee John Tae
• Jung Sun Hwan
• Jeoung Eun Mi

Classifications

• A24D3/17

  Filters specially adapted for simulated smoking devices · CPC title

• A24D1/025

  the covers having material applied to defined areas, e.g. bands for reducing the ignition propensity · CPC title

• A24D1/02

  with special covers · CPC title

• A24D1/20 Primary

  Cigarettes specially adapted for simulated smoking devices · CPC title

• A24F40/00

  Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor · CPC title