Note : Les descriptions sont présentées dans la langue officielle dans laquelle elles ont été soumises.
WO 2022/029417
PCT/GB2021/051995
AEROSOL PROVISION SYSTEM
Technical Field
The present invention relates to an aerosolisable material, an aerosol
provision system, a
method of providing an aerosol, a method of manufacture of an aerosolisable
material and an
aerosolisable material.
Background
Aerosol provision systems are known. Common systems use heaters to create an
aerosol
from an aerosolisable material which is then inhaled by a user. The
aerosolisable material
from which the aerosol is generated may be partially or entirely consumed
during use of the
aerosol provision system. When an aerosol generating material is heated, the
aerosol
generating material may change structurally. Over time such structural changes
may reduce
the user experience of the aerosol provision system, by virtue of changing
flavours or
increasing difficulty of use as the aerosol generating material is depleted.
Temperatures used
to produce aerosols from aerosol generating materials can vary throughout use
as these
structural changes occur.
It is desirable to provide aerosol provision systems that provide effective
and efficient heating
of aerosol generating material.
The present invention is directed toward solving some of the above problems.
Summary
Aspects of the invention are defined in the accompanying claims.
In accordance with some embodiments described herein, there is provided an
aerosolisable
material comprising at least one active constituent and at least one thermally
conductive
element, wherein the at least one thermally conductive element has a thermal
conductivity of
around 10 W/mK to around 500 W/mK.
1
CA 03173372 2022- 9- 26
WO 2022/029417
PCT/GB2021/051995
In accordance with some embodiments described herein, there is provided an
aerosol
provision system comprising: a power source; an aerosolisable material; and, a
heater for
providing heat to the aerosolisable material, wherein aerosolisable material
comprises at least
one active constituent and at least one thermally conductive element, wherein
the at least one
thermally conductive element has a thermal conductivity of around 10 W/mK to
around 500
W/mK.
In accordance with some embodiments described herein, there is provided a
method of
providing an aerosol comprising: providing an aerosol provision device
comprising a heater;
an aerosolisable material comprising at least one active constituent and at
least one thermally
conductive element, wherein the thermally conductive element has a thermal
conductivity of
around 10 W/mK to around 500 W/mK; engaging the aerosolisable material with
the aerosol
provision device; and, heating the aerosolisable material with the heater.
In accordance with some embodiments described herein, there is provided an
aerosolisable
material comprising at least one active constituent means and at least one
thermally
conductive means, wherein the at least one thermally conductive means has a
thermal
conductivity of around 10 W/mK to around 500 W/mK.
Description of Drawings
The present teachings will now be described by way of example only with
reference to the
following figure:
Figure 1 is a cross-sectional view of an aerosolisable material according to
an example;
Figure 2 is a cross-sectional view of an acrosolisable material to an example;
Figure 3 is a cross-sectional view of an aerosolisable material according to
an example;
Figure 4 is a cross-sectional view of an aerosolisable material according to
an example;
Figure 5 is a longitudinal cross-sectional view of an aerosol provision device
according to an
example and,
Figure 6 is a longitudinal cross-sectional view of an aerosol provision device
according to an
example.
While the invention is susceptible to various modifications and alternative
forms, specific
embodiments are shown by way of example in the drawings and are herein
described in
detail. It should be understood, however, that the drawings and detailed
description of the
2
CA 03173372 2022- 9- 26
WO 2022/029417
PCT/GB2021/051995
specific embodiments are not intended to limit the invention to the particular
forms disclosed.
On the contrary, the invention covers all modifications, equivalents and
alternatives falling
within the scope of the present invention as defined by the appended claims.
Detailed Description
Aspects and features of certain examples and embodiments are discussed /
described herein.
Some aspects and features of certain examples and embodiments may be
implemented
conventionally and these are not discussed / described in detail in the
interests of brevity. It
will thus be appreciated that aspects and features of apparatus and methods
discussed herein
which are not described in detail may be implemented in accordance with any
conventional
techniques for implementing such aspects and features.
The present disclosure relates to aerosol provision systems, which may also be
referred to as
aerosol provision systems, such as e-cigarettes. According to the present
disclosure, a "non-
combustible" aerosol provision system is one where a constituent aerosolisable
material of
the aerosol provision system (or component thereof) is not combusted or burned
in order to
facilitate delivery to a user. Throughout the following description the term
"e-cigarette" or
"electronic cigarette" may sometimes be used, but it will be appreciated this
term may be
used interchangeably with aerosol provision system / device and electronic
aerosol provision
system / device. Furthermore, and as is common in the technical field, the
terms "aerosol"
and "vapour", and related terms such as "vaporise", "volatilise" and
"aerosolise", may
generally be used interchangeably.
In the example of Figure 1, an aerosolisable material 100 for use in an
aerosol provision
system is shown. The aerosolisable material 100 may be inserted into, or
connected to, an
aerosol provision system. The aerosol provision system may produce an aerosol
from the
aerosolisable material 100. The aerosolisable material 100 comprises at least
one active
constituent 110. The aerosolisable material 100 comprises at least one
thermally conductive
element 120. The at least one thermally conductive element 120 has a thermal
conductivity
of around 10 W/mK to around 500 W/mK. In the example shown in Figure 1, the
aerosolisable material 100 may contain other elements.
The at least one active constituent 110 may comprise one or more flavours, one
or more
aerosol-former materials and/or one or more functional materials. In a
particular example,
3
CA 03173372 2022- 9- 26
WO 2022/029417
PCT/GB2021/051995
the at least one active constituent 110 may contain nicotine or a nicotine-
containing
substance.
The at least one thermally conductive element 120 assists in effective
transfer of heat energy
through the aerosolisable material 100. The at least one thermally conductive
element 120
shown in the specific example of Figure 1 is separate from the at least one
active constituent
110. In an example, at least one active constituent 110 and at least one
thermally conductive
element 120 may be mixed, adjoining or partially intermingled. The arrangement
of at least
one thermally conductive element 120 in the aerosolisable material 100 may be
selected to
enable efficient heat transfer from one portion of the aerosolisable material
100 to another.
This may be selected, or the aerosolisable material may be designed, with an
understanding
of areas of poor thermal conduction within the aerosolisable material 100.
In another example, the arrangement of at least one thermally conductive
element 120 in the
aerosolisable material 100 may be selected with an understanding of the
typical heat flow
paths in an aerosol provision system and how these heat flow paths interact
with the
aerosolisable material 100. For example, if heat is to be supplied to the
aerosolisable material
100 primarily from one side of the aerosolisable material 100, the at least
one thermally
conductive element 120 may be arranged to effectively conduct heat to another
side of the
aerosolisable material 100.
In an example, the at least one thermally conductive element 120 comprise a
binder. A
binder may be a material or substance that holds or draws other materials
together to form a
cohesive whole mechanically, chemically, by adhesion or cohesion. The use of a
binder
assists in forming the structure of the aerosolisable material 100. The
maintenance of the
structure of the aerosolisable material 100 assists in prevention of
structural degradation
which can occur during heating of the aerosolisable material 100. Such
structural
degradation can lead to uneven heating of the aerosolisable material 100 which
can lead to
production of undesirable compounds due to overheating of certain portions of
the
aerosolisable material 100. Specific conductive binders that may be
advantageous include
methyl cellulose, carboxylmethyl cellulose, alginates as well as gels. The
binder need only
have a thermal conductivity above that of the aerosolisable material (such of
tobacco) to
improve thermal conduction through the aerosolisable material. As such,
certain binders may
4
CA 03173372 2022- 9- 26
WO 2022/029417
PCT/GB2021/051995
be used with less thermally conductive aerosolisable material but would not be
suitable for
more thermally conductive aerosolisable material.
In the example of Figure 2, an aerosolisable material 200 is shown. The
aerosolisable
material 200 has at least one active constituent 210 and at least one
thermally conductive
element 220. The at least one thermally conductive element 220 is shown as
comprising a
binder 222. In the schematic example of Figure 2, the binder 222 is shown as a
confined
portion within the at least one thermally conductive element 220. The binder
222 may be
distributed evenly or unevenly throughout the at least one thermally
conductive element 220.
The thermally conductive clement 220 and/or the binder 222 may be distributed
evenly or
unevenly throughout the acrosolisablc material 200. The binder 222 may assist
in improved
heat transfer throughout the aerosolisable material 200.
In an example, the at least one thermally conductive element 220 forms at most
20% by
volume of the aerosolisable material 200. In other examples, the at least one
thermally
conductive element 220 forms at most 1%, at most 2%, at most 3%, at most 4%,
at most 5%,
at most 6%, at most 7%, at most 8%, at most 9%, at most 10%, at most 11%, at
most 12%, at
most 13%, at most 14%, at most 15%, at most 16%, at most 17%, at most 18%, or
at most
19% by volume of the aerosolisable material 200. The amount of thermally
conductive
element 220 may be selected to enable a balance between the active constituent
210 present
in the aerosolisable material 200, for producing a flavour or the like in use,
and the assistance
to thermal conductivity provided by the thermally conductive element 220. In
an example
wherein the active constituent 210 is particularly poor at conducting heat,
this may be
overcome with the provision of a greater amount of thermally conductive
clement 220. In an
example wherein the active constituent 210 is better at conducting heat, there
may be a lesser
amount of thermally conductive element 220 in the aerosolisable material 200.
In the example of Figure 3, an aerosolisable material 300 is shown. The
aerosolisable
material 300 comprises at least one active constituent 310 and at least one
themaally
conductive element 320. In the example of Figure 3, the at least one thermally
conductive
element 320 is arranged substantially away from an outer surface 302 of the
aerosolisable
material 300. The location of the at least one thermally conductive element
320 may be
selected to enable the' ___ -nal energy transfer to portions of the
aerosolisable material 300 that
have a lower propensity for receiving thermal energy during use. In another
example, not
5
CA 03173372 2022- 9- 26
WO 2022/029417
PCT/GB2021/051995
shown, the at least one thermally conductive element is arranged substantially
toward an
outer surface of the aerosolisable material. This may encourage heat from an
external source
towards the centre of the aerosolisable material. For example, if aerosol
passing through is
the heating mechanism, the aerosol may pass through the homogenous mix of the
aerosolisable material and so an advantageous location would be on the outside
of the
aerosolisable material.
By "locating" and "positioning" of the thermally conductive element 320, as
used herein, it is
also envisaged that this may refer to the distribution of the density of the
at least one
thermally conductive element 320 throughout the aerosolisable material 300. In
an example,
rather than positioning the at least one thermally conductive element 320 away
from the outer
surface 302 of the aerosolisable material 300, the thermally conductive
element 320 may be
more dense in a central location of the aerosolisable material 300. The
density profile may
vary from portions of the aerosolisable material 300 which receive more
thermal heat energy
(wherein the density is lower) to portions which receive less thermal heat
energy (wherein the
density is higher).
In an example therefore the thermally conductive element 320 may be
concentrated in
particular portions of the aerosolisable material 300 and so not be evenly
dispersed. The
thermally conductive element 320 may be provided in bulk in a specific
location (as in Figure
3) rather than in isolated, individualised elements throughout the
aerosolisable material 300.
In such an example, therefore, a thermal or physical network may be provided
by the
thermally conductive element 320. Such a network may be continuous or
discrete, and may
be formed wherein one or more portions of the thermally conductive element 320
are in
contact.
This enables a manufacturer to advantageously provide a bespoke thermal
profile which can
be formed during heating of the aerosolisable material 300 which may or may
not be equal
across the aerosolisable material 300. An advantage of an unequal heat
distribution allows a
manufacturer to tailor additional heating to locations in the aerosolisable
material 300 that
require heating, such as a more central portion of the aerosolisable material
300, which may
not be as readily heated as an outwardly-facing surface.
6
CA 03173372 2022- 9- 26
WO 2022/029417
PCT/GB2021/051995
The centre of the aerosolisable material 300 may receive less thermal heat
energy (from an
external heating source) than portions located closer to the outer surface
302. As such, in an
example, the thermally conductive element 320 may be formed to transport heat
energy
effectively to the centre of the aerosolisable material 300. This may be via
density profile
selection or via structures such as rods in which the thermally conductive
element 320 may
be formed or arranged. Such rods may project into the centre from the outer
surface such that
the density of the rods is higher towards the centre of the aerosolisable
material 300.
The selection of densities (or the variation of the density) of the thermally
conductive element
320 in the aerosolisable material 300 should avoid concentrations of heat
energy where the
active constituent 310 may be overheated and produce undesirable compounds.
In an example, the at least one thermally conductive element 320 comprises at
least one of: a
metal, an alloy, a ceramic, glycerol, and graphite. The glycerol may be
vegetable glycerol.
In the example of Figure 4, an aerosolisable material 400 is shown. The
aerosolisable
material 400 comprises at least one active constituent 410 and at least one
thermally
conductive element 420. In the example of Figure 4, the at least one thermally
conductive
element 420 comprises at least a first binding material 422 and a second
binding material
424. In an example, the first binding material 422 having a thermal
conductivity of around
300 to around 400 W/mK, and the second binding material 424 having a thermal
conductivity
of around 10 to around 200 W/mK.
The provision of the plurality of portions with differing thermal
conductivities within the at
least one thermally conductive element 420 may enable greater flexibility over
the thermal
conductivity provided by the thermally conductive element 420 as a whole.
This, in turn,
increases the control over the thermal conductivity provided by the thermally
conductive
element 420. In an example, it may be advantageous to provide a material with
a greater
thermal conductivity towards the outer surface 402 of the aerosolisable
material 400 and a
material with a lower thermal conductivity towards the centre such that, in
use, heat in
conducted towards the centre of the aerosolisable material 400 but is retained
more
effectively once provided. In the above described example, it is presumed that
heat energy is
being applied to the aerosolisable material 400 such that the outer surface
402 receives at
7
CA 03173372 2022- 9- 26
WO 2022/029417
PCT/GB2021/051995
least the majority (if not the entirety) of the incident heat. This of course
will depend on the
aerosol provision device with which the aerosolisable material 400 is used.
In an example, the at least one active constituent 410 comprises a flavour.
The flavour may
be olfactory or the like. The active constituent 410 may comprise an active
substance. The
active substance may be e.g. caffeine or the like.
The active constituent 410 as used herein may be a physiologically active
material, which is a
material intended to achieve or enhance a physiological response. The active
constituent 410
may for example be selected from nutraccuticals, nootropics, psychoactives.
The active
constituent 410 may be naturally occurring or synthetically obtained. The
active constituent
410 may comprise for example nicotine, caffeine, taurine, theine, vitamins
such as B6 or B12
or C, melatonin, cannabinoids, or constituents, derivatives, or combinations
thereof. The
active constituent 410 may comprise one or more constituents, derivatives or
extracts of
tobacco, cannabis or another botanical.
In some embodiments, the active constituent 410 comprises nicotine. In some
embodiments,
the active substance comprises caffeine, melatonin or vitamin B12. In some
embodiments,
the active constituent 410 comprises tobacco.
In the example of Figure 5, an aerosol provision system 500 is shown. The
aerosol provision
system 500 comprises a power source 530. The power source 530 may be a source
of
chemical energy such as a battery or the like. The aerosol provision system
500 comprises an
aerosolisable material 505. The aerosol provision system 500 also comprises a
heater 540 for
providing heat to the aerosolisable material 505. The aerosolisable material
505 has at least
one active constituent 510 and at least one thermally conductive element 520.
The power
source 530 is connected to the heater 540. The power source 530 and the heater
540 may be
arranged to convert chemical energy to thermal energy. The thermal energy is
incident on the
side 507 of the aerosolisable material 505 facing the heater 540.
As the heater provides thermal energy to the aerosolisable material 505, the
active constituent
510 may release compounds which may form an aerosol in air which passes
through the
system 500. This aerosol may exit the system 500 via outlet 509. Over time,
the active
constituent 510 adjacent to side 507 will become depleted and there will
become a need for
8
CA 03173372 2022- 9- 26
WO 2022/029417
PCT/GB2021/051995
the heat to affect a fresher portion of the active constituent 510.
Arrangement of the
thermally conductive element 520 may enable depletion of the active
constituent 510 to occur
more homogeneously throughout use. This assists in preventing portions of the
active
constituent 510 from being heated when depleted which can result in
undesirable compounds
being released.
In the example of Figure 6, an aerosol provision system 600 is shown. The
aerosol provision
system 600 comprises a power source 630. The power source 630 may be a source
of
chemical energy such as a battery or the like. The aerosol provision system
600 comprises an
aerosolisable material 605. The aerosol provision system 600 also comprises a
heater 640 for
providing heat to the aerosolisablc material 605. The aerosolisable material
605 has at least
one active constituent 610 and at least one thermally conductive element 620.
The power
source 630 is connected to the heater 640. The thermal energy from the heater
640 is incident
on the side 607 of the aerosolisable material 605 that is facing the heater
640.
The arrangement of the example shown in Figure 6 differs from the arrangement
of the
example shown in Figure 5. The at least one thermally conductive element 620
is arranged to
project down a longitudinal axis arranged centrally in the aerosolisable
material 605. The at
least one active constituent 610 is shown either side of the centrally-
arranged at least one
thermally conductive element 620. The arrangement enables heat incident on the
side 607 of
the aerosolisable material 605 to be conducted by the at least one thermally
conductive
element 620 to the rest of the aerosolisable material 605. This arrangement
therefore assists
in enabling more homogenous heating of the aerosolisable material 605. The
arrangement of
the at least one thermally conductive element 620 therefore assists in
preventing the at least
one active constituent 610 near the side 607 from becoming overheated and
producing
undesirable compounds.
In an example, the power source 630 supplies energy to the heater 640 and the
heater 640 is
arranged to operate at around 70 C. The use of the at least one thermally
conductive element
620 enables efficient transfer of heat throughout the aerosolisable material
605. Therefore,
the system 600 may operate at a lower temperature. In this way, use of the at
least one
thermally conductive element 620 may reduce the load on the power source 630
and the
heater 640 increasing the lifetime of the system 600 per charge (as less power
source 630
energy is required per puff) and increasing the lifetime of the system 600 as
a while (as less
9
CA 03173372 2022- 9- 26
WO 2022/029417
PCT/GB2021/051995
electrical strain is placed on the elements within the system 600). Ti an
example, the power
source 630 and heater 640 may operate to heat the aerosolis able material 605
to around 70 C.
Any of the disclosed aerosol provision systems may have control circuitry
arranged to control
the heating to produce an aerosol and/or receive signals from sensors or from
the user and/or
to control movement of the guide element (or portions thereof) or the like.
The controller or
the control circuitry may be connected to a database for determining when
certain
predetermined values are exceeded or are outside of predetermined ranges. This
may lead to
controlling heating of the heater or controlling control flow of the aerosol
through the aerosol
provision system.
The heating may be provided by a resistive heater to provide thermal energy to
the
aerosolisable material 605. In an example, the thermally conductive material
is therefore
heatable by resistive heating. In an example, the thermally conductive
material is not
heatable via induction heating or magnetism. For example, thermally conductive
material
may be formed from at least one of ceramics and a binder or the like.
In some embodiments, the aerosol provision system is an electronic cigarette,
also known as a
vaping device or electronic nicotine delivery system (END), although it is
noted that the
presence of nicotine in the aerosolisable material is not a requirement.
In some embodiments, the aerosol provision system is a tobacco heating system,
also known
as a heat-not-burn system.
In some embodiments, the aerosol provision system is a hybrid system to
generate aerosol
using a combination of aerosolisable materials, one or a plurality of which
may be heated.
Each of the aerosolisable materials may be, for example, in the form of a
solid, liquid or gel
and may or may not contain nicotine. In some embodiments, the hybrid system
comprises a
liquid or gel aerosolisable material and a solid aerosolisable material. The
solid aerosolisable
material may comprise, for example, tobacco or a non-tobacco product.
Typically, the aerosol provision system may comprise an aerosol provision
device and an
article for use with the aerosol provision device. However, it is envisaged
that articles which
CA 03173372 2022- 9- 26
WO 2022/029417
PCT/GB2021/051995
themselves comprise a means for powering an aerosol generating component may
themselves
form the aerosol provision system.
In some embodiments, the aerosol provision device may comprise a power source
and a
controller. The power source may, for example, be an electric power source.
In some embodiments, the article for use with the aerosol provision device may
comprise an
aerosolisable material, an aerosol generating component, an aerosol generating
area, a
mouthpiece, and/or an area for receiving aerosolisable material.
In some embodiments, the aerosol generating component is a heater capable of
interacting
with the aerosolisable material so as to release one or more volatiles from
the aerosolisable
material to form an aerosol.
In some embodiments, the substance to be delivered may be an aerosolisable
material.
Aerosolisable material, which also may be referred to herein as aerosol
generating material, is
material that is capable of generating aerosol, for example when heated,
irradiated or
energized in any other way. Aerosolisable material may, for example, be in the
form of a
solid, liquid or gel which may or may not contain nicotine and/or flavourants.
In some
embodiments, the aerosolisable material may comprise an "amorphous solid",
which may
alternatively be referred to as a "monolithic solid" (i.e. non-fibrous). In
some embodiments,
the amorphous solid may be a dried gel. The amorphous solid is a solid
material that may
retain some fluid, such as liquid, within it. In some embodiments, the
aerosolisable material
may for example comprise from about 50wt%, 60wt% or 70wt% of amorphous solid,
to
about 90wt%, 95wt% or 100wt% of amorphous solid.
The aerosolisable material may comprise one or more active constituents, one
or more carrier
constituents and optionally one or more other functional constituents.
The active constituent may comprise one or more physiologically and/or
olfactory active
constituents which are included in the aerosolisable material in order to
achieve a
physiological and/or olfactory response in the user. The active constituent
may for example
be selected from nutraceuticals, nootropics, and psychoactives. The active
constituent may be
naturally occurring or synthetically obtained. The active constituent may
comprise for
11
CA 03173372 2022- 9- 26
WO 2022/029417
PCT/GB2021/051995
example nicotine, caffeine, taurine, or any other suitable constituent. The
active constituent
may comprise a constituent, derivative or extract of tobacco or of another
botanical. In some
embodiments, the active constituent is a physiologically active constituent
and may be
selected from nicotine, nicotine salts (e.g. nicotine ditartrate/nicotine
bitartrate), nicotine-free
tobacco substitutes, other alkaloids such as caffeine.
In some embodiments, the active constituent is an olfactory active constituent
and may be
selected from a "flavour" and/or "flavourant" which, where local regulations
permit, may be
used to create a desired taste, aroma or other somatosensorial sensation in a
product for adult
consumers. In some instances such constituents may be referred to as flavours,
flavourants,
cooling agents, heating agents, or sweetening agents. They may include
naturally occurring
flavour materials, botanicals, extracts of botanicals, synthetically obtained
materials, or
combinations thereof (e.g., tobacco, cannabis, licorice (liquorice),
hydrangea, eugenol,
Japanese white bark magnolia leaf, chamomile, fenugreek, clove, maple,
inatcha, menthol,
Japanese mint, aniseed (anise), cinnamon, turmeric, Indian spices, Asian
spices, herb,
wintergreen, cherry, berry, red berry, cranberry, peach, apple, orange, mango,
clementine,
lemon, lime, tropical fruit, papaya, rhubarb, grape, durian, dragon fruit,
cucumber, blueberry,
mulberry, citrus fruits, Drambuie, bourbon, scotch, whiskey, gin, tequila,
rum, spearmint,
peppermint, lavender, aloe vera, cardamom, celery. cascarilla, nutmeg,
sandalwood,
bergamot, geranium, khat, naswar, betel, shisha, pine, honey essence, rose
oil, vanilla, lemon
oil, orange oil, orange blossom, cherry blossom, cassia, caraway, cognac,
jasmine, ylang-
ylang, sage, fennel, wasabi, piment, ginger, coriander, coffee, hemp, a mint
oil from any
species of the genus Mentha, eucalyptus, star anise, cocoa, lemongrass,
rooibos, flax, ginkgo
biloba, hazel, hibiscus, laurel, mate, orange skin, rose, tea such as green
tea or black tea,
thyme, juniper, elderflower, basil, bay leaves, cumin, oregano, paprika,
rosemary, saffron,
lemon peel, mint, beefsteak plant, curcuma, cilantro, myrtle, cassis,
valerian, pimento, mace,
damien, marjoram, olive, lemon balm, lemon basil, chive, carvi, verbena,
tarragon, limonene,
thymol, camphene), flavour enhancers, bitterness receptor site blockers,
sensorial receptor
site activators or stimulators, sugars and/or sugar substitutes (e.g.,
sucralose, acesulfame
potassium, aspartame, saccharine, cyclamates, lactose, sucrose, glucose,
fructose, sorbitol, or
mannitol), and other additives such as charcoal, chlorophyll, minerals,
botanicals, or breath
freshening agents. They may be imitation, synthetic or natural ingredients or
blends thereof.
They may be in any suitable form, for example, liquid such as an oil, solid
such as a powder,
or gasone or more of extracts (e.g., licorice, hydrangea, Japanese white bark
magnolia leaf,
12
CA 03173372 2022- 9- 26
WO 2022/029417
PCT/GB2021/051995
chamomile, fenugreek, clove, menthol, Japanese mint, aniseed, cinnamon, herb,
wintergreen,
cherry, berry, peach, apple, Drambuie, bourbon, scotch, whiskey, spearmint,
peppermint,
lavender, cardamom, celery, cascarilla, nutmeg, sandalwood, bergamot,
geranium, honey
essence, rose oil, vanilla, lemon oil, orange oil, cassia, caraway, cognac,
jasmine, ylang-
ylang, sage, fennel, piment, ginger, anise, coriander, coffee, or a mint oil
from any species of
the genus Mentha), flavour enhancers, bitterness receptor site blockers,
sensorial receptor site
activators or stimulators, sugars and/or sugar substitutes (e.g., sucralose,
acesulfame
potassium, aspartame, saccharine, cyclamates, lactose, sucrose, glucose,
fructose, sorbitol, or
mannitol), and other additives such as charcoal, chlorophyll, minerals,
botanicals, or breath
freshening agents. They may be imitation, synthetic or natural ingredients or
blends thereof.
They may be in any suitable form, for example, oil, liquid, or powder.
In some embodiments, the flavour comprises menthol, spearmint and/or
peppermint. In some
embodiments, the flavour comprises flavour components of cucumber, blueberry,
citrus fruits
and/or redberry. In some embodiments, the flavour comprises eugenol. In some
embodiments, the flavour comprises flavour components extracted from tobacco.
In some
embodiments, the flavour may comprise a sensate, which is intended to achieve
a
somatosensorial sensation which are usually chemically induced and perceived
by the
stimulation of the fifth cranial nerve (trigeminal nerve), in addition to or
in place of aroma or
taste nerves, and these may include agents providing heating, cooling,
tingling, numbing
effect. A suitable heat effect agent may be, but is not limited to, vanillyl
ethyl ether and a
suitable cooling agent may be, but not limited to eucalyptol, WS-3.
The carrier constituent may comprise one or more constituents capable of
forming an aerosol.
In some embodiments, the carrier constituent may comprise one or more of
glycerine,
glycerol, propylene glycol, diethylene glycol, triethylene glycol,
tetraethylene glycol, 1,3-
butylene glycol, erythritol, meso-Erythritol, ethyl vanillate, ethyl laurate,
a diethyl suberate,
triethyl citrate, triacetin, a cliacetin mixture, benzyl benzoate, benzyl
phenyl acetate,
tributyrin, lauryl acetate, lauric acid, myristic acid, and propylene
carbonate.
The one or more other functional constituents may comprise one or more of pH
regulators,
colouring agents, preservatives, binders, fillers, stabilizers, and/or
antioxidants.
13
CA 03173372 2022- 9- 26
WO 2022/029417
PCT/GB2021/051995
In some embodiments, the article for use with the aerosol provision device may
comprise
aerosolisable material or an area for receiving aerosolisable material. In
some embodiments,
the article for use with the aerosol provision device may comprise a
mouthpiece. The area
for receiving aerosolisable material may be a storage area for storing
aerosolisable material.
For example, the storage area may be a reservoir. In some embodiments, the
area for
receiving aerosolisable material may be separate from, or combined with, an
aerosol
generating area.
Thus there has been described an aerosolisable material comprising at least
one active
constituent and at least one thermally conductive element, wherein the at
least one thermally
conductive element has a thermal conductivity of around 10 W/mK to around 500
W/mK.
The aerosol provision system may be used in a tobacco industry product, for
example a non-
combustible aerosol provision system.
In one embodiment, the tobacco industry product comprises one or more
components of a
non-combustible aerosol provision system, such as a heater and an
aerosolizable substrate.
In one embodiment, the aerosol provision system is an electronic cigarette
also known as a
v aping device.
In one embodiment the electronic cigarette comprises a heater, a power supply
capable of
supplying power to the heater, an aerosolizable substrate such as a liquid or
gel, a housing
and optionally a mouthpiece.
In one embodiment the aerosolizable substrate is contained in or on a
substrate container. In
one embodiment the substrate container is combined with or comprises the
heater.
In one embodiment, the tobacco industry product is a heating product which
releases one or
more compounds by heating, but not burning, a substrate material. The
substrate material is
an aerosolizable material which may be for example tobacco or other non-
tobacco products,
which may or may not contain nicotine. In one embodiment, the heating device
product is a
tobacco heating product.
In one embodiment, the heating product is an electronic device.
14
CA 03173372 2022- 9- 26
WO 2022/029417
PCT/GB2021/051995
In one embodiment, the tobacco heating product comprises a heater, a power
supply capable
of supplying power to the heater, an aerosolizable substrate such as a solid
or gel material.
In one embodiment the heating product is a non-electronic article.
In one embodiment the heating product comprises an aerosolizable substrate
such as a solid
or gel material, and a heat source which is capable of supplying heat energy
to the
aerosolizable substrate without any electronic means, such as by burning a
combustion
material, such as charcoal.
In one embodiment the heating product also comprises a filter capable of
filtering the aerosol
generated by heating the aerosolizable substrate.
In some embodiments the aerosolizable substrate material may comprise an
aerosol or aerosol
generating agent or a humectant, such as glycerol, propylene glycol, triacetin
or diethylene
glycol.
In one embodiment, the tobacco industry product is a hybrid system to generate
aerosol by
heating, hut not burning, a combination of substrate materials. The substrate
materials may
comprise for example solid, liquid or gel which may or may not contain
nicotine. In one
embodiment, the hybrid system comprises a liquid or gel substrate and a solid
substrate. The
solid substrate may he for example tobacco or other non-tobacco products,
which may or may
not contain nicotine. In one embodiment, the hybrid system comprises a liquid
or gel
substrate and tobacco.
In order to address various issues and advance the art, the entirety of this
disclosure shows by
way of illustration various embodiments in which the claimed invention(s) may
be practiced
and provide for a superior electronic aerosol provision system. The advantages
and features
of the disclosure are of a representative sample of embodiments only, and are
not exhaustive
and/or exclusive. They are presented only to assist in understanding and teach
the claimed
features. It is to be understood that advantages, embodiments, examples,
functions, features,
structures, and/or other aspects of the disclosure are not to be considered
limitations on the
disclosure as defined by the claims or limitations on equivalents to the
claims, and that other
embodiments may be utilised and modifications may be made without departing
from the
scope and/or spirit of the disclosure. Various embodiments may suitably
comprise, consist of,
or consist essentially of, various combinations of the disclosed elements,
components,
CA 03173372 2022- 9- 26
WO 2022/029417
PCT/GB2021/051995
features, parts, steps, means, etc. In addition, the disclosure includes other
inventions not
presently claimed, but which may be claimed in future.
16
CA 03173372 2022- 9- 26
