WO2024084083A1 - Matériau de génération d'aérosol sous la forme d'un ou de plusieurs brins non linéaires - Google Patents

Matériau de génération d'aérosol sous la forme d'un ou de plusieurs brins non linéaires Download PDF

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Publication number
WO2024084083A1
WO2024084083A1 PCT/EP2023/079368 EP2023079368W WO2024084083A1 WO 2024084083 A1 WO2024084083 A1 WO 2024084083A1 EP 2023079368 W EP2023079368 W EP 2023079368W WO 2024084083 A1 WO2024084083 A1 WO 2024084083A1
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WO
WIPO (PCT)
Prior art keywords
aerosol
generating
generating material
strands
composition
Prior art date
Application number
PCT/EP2023/079368
Other languages
English (en)
Inventor
Walid Abi Aoun
Stuart Martin
Fiona ALIU
Jana JEFFERY
Alejandro PARISI
Joanna SOFFE
Guilherme GONCALVES CARDOSO
Original Assignee
Nicoventures Trading Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from GBGB2215504.8A external-priority patent/GB202215504D0/en
Priority claimed from GBGB2313018.0A external-priority patent/GB202313018D0/en
Application filed by Nicoventures Trading Limited filed Critical Nicoventures Trading Limited
Publication of WO2024084083A1 publication Critical patent/WO2024084083A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
    • A24B15/10—Chemical features of tobacco products or tobacco substitutes
    • A24B15/16—Chemical features of tobacco products or tobacco substitutes of tobacco substitutes
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
    • A24B15/10—Chemical features of tobacco products or tobacco substitutes
    • A24B15/12—Chemical features of tobacco products or tobacco substitutes of reconstituted tobacco
    • A24B15/14—Chemical features of tobacco products or tobacco substitutes of reconstituted tobacco made of tobacco and a binding agent not derived from tobacco
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
    • A24B15/18—Treatment of tobacco products or tobacco substitutes
    • A24B15/28—Treatment of tobacco products or tobacco substitutes by chemical substances
    • A24B15/30—Treatment of tobacco products or tobacco substitutes by chemical substances by organic substances
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
    • A24B15/18—Treatment of tobacco products or tobacco substitutes
    • A24B15/28—Treatment of tobacco products or tobacco substitutes by chemical substances
    • A24B15/30—Treatment of tobacco products or tobacco substitutes by chemical substances by organic substances
    • A24B15/302—Treatment of tobacco products or tobacco substitutes by chemical substances by organic substances by natural substances obtained from animals or plants
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D1/00—Cigars; Cigarettes
    • A24D1/20—Cigarettes specially adapted for simulated smoking devices

Definitions

  • the present invention relates to aerosol-generating materials, aerosolgenerating compositions comprising the aerosol-generating material; consumables for use within a non-combustible aerosol provision system, the consumables comprising the aerosol-generating composition; and non-combustible aerosol provision systems.
  • the invention also relates to methods for producing the aerosolgenerating material, and aerosol-generating materials obtainable by the methods of the invention.
  • Smoking consumables such as cigarettes, cigars and the like burn tobacco during use to create tobacco smoke.
  • a heating device which releases compounds by heating, but not burning, a solid aerosol-generating material.
  • This solid aerosol-generating material may, in some cases, contain a botanical material.
  • the heating volatilises at least one component of the material, typically forming an inhalable aerosol.
  • These products may be referred to as heat-not-burn devices, tobacco heating devices or tobacco heating products.
  • Various different arrangements for volatilising at least one component of the solid aerosol-generating material are known.
  • hybrid devices contain a liquid source (which may or may not contain nicotine) which is vaporised by heating to produce an inhalable vapour or aerosol.
  • the device additionally contains a solid aerosolgenerating material (which may or may not contain a tobacco material) and components of this material are entrained in the inhalable vapour or aerosol to produce the inhaled medium.
  • an aerosol-generating material in the form of one or more non-linear strands, wherein the aerosol-generating material comprises: an aerosol-generating agent; a botanical extract; a crosslinked binder; optionally one or more fillers; and optionally an active and/or flavourant and/or an acid.
  • an aerosol-generating material in the form of one or more non-linear strands, wherein the aerosol-generating material comprises: an aerosol-generating agent; a botanical extract; a binder selected from the group consisting of alginate, pectin, carrageenan (such as iota-carrageenan), gellan gum (such as high acyl gellan gum), and combinations thereof; optionally one or more fillers; and optionally an active and/or a flavourant and/or an acid.
  • an aerosol-generating composition comprising the aerosol-generating material of the invention.
  • a method of forming an aerosol-generating material in the form of non-linear strands comprising:
  • a binder selected from the group consisting of alginate, pectin, carrageenan, (such as iota-carrageenan), gellan gum (such as high acyl gellan gum), and combinations thereof; optionally a filler; and optionally an active and/or a flavourant and/or an acid;
  • a consumable for use within a non-combustible aerosol provision system comprising the aerosol-generating composition as defined herein.
  • a noncombustible aerosol provision system comprising the consumable as defined herein and a non-combustible aerosol provision device, the non-combustible aerosol provision device comprising an aerosol-generation device configured to (or arranged to) generate aerosol from the consumable when the consumable is used with the non-combustible aerosol provision device.
  • an aerosol-generating composition as defined herein in a consumable for use in a non-combustible aerosol provision device comprising an aerosol-generation device arranged to generate aerosol from the consumable when the consumable is used with the non-combustible aerosol provision device.
  • an aerosol-generating material or an aerosol-generating composition as defined herein for generating an aerosol for generating an aerosol.
  • the invention provides an aerosol-generating material obtainable by, or obtained by, a method of the invention.
  • a method of generating an aerosol using a non-combustible aerosol provision system as described herein comprising heating the aerosol-generating material.
  • the method comprises heating the aerosol-generating material to a temperature of less than or equal to 350 °C.
  • the method comprises heating the aerosol-generating material to a temperature of from about 220 °C to about 280 °C.
  • Figure 1 shows a section view of an example of an aerosol-generating article.
  • Figure 2 shows a perspective view of the article of Figure 1.
  • Figure 3 shows a sectional elevation of an example of an aerosol-generating article.
  • Figure 4 shows a perspective view of the article of Figure 3.
  • Figure 5 shows a perspective view of an example of an aerosol generating assembly.
  • Figure 6 shows a section view of an example of an aerosol generating assembly.
  • Figure 7 shows a perspective view of an example of an aerosol generating assembly.
  • Figures 8 and 10 show schematic diagrams of the aerosol-generating material of the invention.
  • Figure 9 shows a schematic cross-section of the aerosol-generating material of Figure 8.
  • Figure 11 shows a photograph of aerosol-generating material of the form of strands (left) and an equivalent aerosol-generating material in the form of a shredded sheet (right).
  • Figure 12 shows a photograph of aerosol-generating material in the form of strands.
  • Figure 13 shows a photograph of a series of strands of aerosol-generating material.
  • Figure 14 shows a microscope image of a specimen of a single strand of an aerosolgenerating material.
  • the aerosol-generating materials/compositions described herein are materials/compositions that are capable of generating aerosol, for example when heated, irradiated or energized in any other way.
  • the aerosol-generating composition comprises an aerosol-generating material.
  • the aerosol-generating material may be a dried gel.
  • the aerosol-generating material may be a solid material that may retain some fluid, such as liquid, within it.
  • the aerosol-generating composition may for example comprise from about 50wt%, 60wt% or 70wt% of aerosol-generating material, to about 90wt%, 95wt% or 100wt% of aerosolgenerating material.
  • the aerosol-generating composition consists of the aerosol-generating material.
  • the aerosol-generating composition comprises from about 40 to about 60 wt% of the aerosol-generating material. The remainder of the composition may be formed from other components as described below, for example tobacco material.
  • the invention provides an aerosol-generating material in the form of one or more non-linear strands, wherein the aerosolgenerating material comprises: an aerosol-generating agent; a botanical extract; and a crosslinked binder.
  • the invention also provides an aerosol-generating material in the form of one or more non-linear strands, wherein the aerosol-generating material comprises: an aerosol-generating agent; a botanical extract; and a binder selected from the group consisting of alginate, pectin, carrageenan (such as iota-carrageenan), gellan gum (such as high acyl gellan gum), and combinations thereof.
  • the aerosol-generating material comprises: an aerosol-generating agent; a botanical extract; and a binder selected from the group consisting of alginate, pectin, carrageenan (such as iota-carrageenan), gellan gum (such as high acyl gellan gum), and combinations thereof.
  • the aerosol-generating material may also optionally comprise one or more fillers, an active and/or a flavourant and/or an acid.
  • the aerosol-generating material is in the form of non-linear strands, which may alternatively be described as non-linear gel fibers. That is, the aerosolgenerating material is in the form of strands or gel fibers, wherein each strand or fiber is non-linear across its length.
  • the strands or fibers may alternatively be described as being curly, noodle-like or kinked. Each strand may therefore be thought of as being similar in shape to a noodle, whilst a number of the strands or gel fibers together can be thought of as being similar in shape to a collection of multiple noodles, where the individual strands may overlap and interlink randomly with each other.
  • non-linear strands is also intended to encompass the alternative terms described herein, such as “non-linear gel fibers”, “curly strands”, “curly gel fibers”, “noodle-like strands”, “noodle-like gel fibers”, “kinked strands”, etc.
  • non-linear strand of the invention Schematic examples of a non-linear strand of the invention are shown as the solid lines in Figures 8 and 10, although it will be appreciated that these figures show a two dimensional representation of a three dimensional structure.
  • each strand is three dimensional, and may also be non-linear in three dimensions.
  • non-linear in three dimensions it is meant that the stands of the invention are non-linear in the x, y and z directions.
  • a spring or coil is an example of a shape which is nonlinear in the x, y and z directions.
  • other strands may be non-linear in two dimensions (e.g. the x and y direction), but linear or flat in the third dimension (e.g. the z direction).
  • Each non-linear strand may have a diameter from about 0.05 mm, 0.1 mm, 0.2 mm, 0.3 mm or 0.5 mm to about 3.0 mm, 2.5 mm, 2.0 mm, 1 .5 mm, 1 .0 mm, 0.8 mm, 0.6 mm or 0.5 mm.
  • each non-linear strand has a diameter of from about 0.05 mm to about 3.0 mm, from about 0.3 to about 2.5 mm, from about 0.5 to about 1.5 mm, or from about 0.7 to about 1.0 mm.
  • each non-linear strand has a diameter of from about 0.1 to about 2 mm, from about 0.1 to about 1.0 mm, or from about 0.2 to about 0.4 mm.
  • the diameter also referred to as the width, is defined as the longest dimension of the cross-section of the strand.
  • Each non-linear strand may have a circular or substantially circular crosssection.
  • the cross-section is the shape exposed by making a straight cut through the strand at right angles to the length at that point.
  • An example of a circular cross-section of a strand is shown in Figure 9, with the cross-section being taken at the dotted line on the schematic representation of the strand of the invention as shown in Figure 8.
  • the shape of the strands are determined by the way in which they are made, and therefore the skilled person would recognise that strands having other cross-sectional shapes (e.g. rectangular, substantially rectangular, triangular or substantially triangular) could also be made.
  • the non-linear strands are of the invention are homogenous through the cross-section. That is, some embodiments the composition of the strands is homogeneous.
  • Each non-linear strand may have a thickness of from about 0.05 mm, 0.1 mm, 0.2 mm, 0.3 mm or 0.5 mm to about 3.0 mm, 2.5 mm, 2.0 mm, 1 .5 mm, 1 .0 mm, 0.8 mm, 0.6 mm or 0.5 mm. In some embodiments, each non-linear strand has a thickness of from about 0.05 mm to about 3 mm, from about 0.3 to about 2.5 mm, from about 0.5 to about 1.5 mm, or from about 0.7 to about 1.0 mm.
  • each non-linear strand has a thickness of from about 0.1 to about 2.0 mm, from about 0.1 to about 1.0 mm, or from about 0.2 to about 0.4 mm.
  • thickness is the dimension of the cross-section which is perpendicular to the diameter or width.
  • each non-linear strand may have a diameter to thickness ratio of from about 1 :2 to about 2:1 , such as from about 3:2 to about 2:3, such as about 1 :1.
  • Each non-linear strand may have an overall length (also referred to herein as the total length) of from about 8 mm, 10 mm, 15 mm, 20 mm or 30 mm to about 200 mm, 100 mm, 75 mm or 50 mm.
  • the overall or total length of each strand is also referred to herein as the uncoiled length, and is defined as the theoretical length if the strand was extended to be straight.
  • the overall length of the strand shown in Figure 10 is the total length of the strand, i.e. the length of the solid black line if this was straightened out.
  • each non-linear strand has an overall length of from about 10 mm to about 200 mm, such as from about 20 mm to about 100 mm, or from about 30 mm to about 50 mm.
  • Each non-linear strand may have an a free-length of from about 3 mm, 5 mm, 8 mm or 11 mm to about 25 mm, 22 mm, 20 mm or 18mm.
  • the term “free length” as used herein is intended to mean the shortest (linear) length between the furthest ends of the strand in its natural non-linear (or curly) state (e.g. the distance between the ends of the strand “as the crow flies”). This is also referred to herein as the coiled length.
  • the free-length or coiled length of the strand is shown by the dashed line.
  • Non-linear strands with a free-length outside of the ranges disclosed herein may clump together more readily than non-linear strands having a free-length as defined herein.
  • each non-linear strand has a free or coiled length of from about 2 mm to about 35 mm, such as from about 3 mm to about 25 mm, from about 6 to about 23 mm, from about 8 mm to about 22 mm, or from about 11 mm to about 20 mm.
  • the total or uncoiled length is greater than the free or coiled length.
  • the ratio between the total length and the free length of each nonlinear strand i.e. the total length divided by the free length
  • the ratio between the total length and the free length of each non-linear strand is less than about 10, less than about 8 or less than about 6. In some embodiments, the ratio between the total length and the free length of each non-linear strand is from about 1 .2 to about 10, such as from about 1 .5 to about 5, or from about 2 to about 5.
  • the aspect ratio of the non-linear strands ranges from about 5 to about 200, such as from about 10 to about 100 or about 20 to about 50.
  • the tensile strength of each strand ranges from about 0.1 N, 0.2 N, 0.3 N or 0.4 N to about 3.0 N, 2.0 N, 1.5 N or 1.0 N. In some embodiments, the tensile strength of each strand ranges from about 0.1 N to about 3.0 N, from about 0.2 N to about 2.0 N, or from about 0.3 N to about 1.0 N.
  • the tensile strength of the non-linear strands of the present invention may be determined by measuring the tensile force needed to break the strand. A suitable test procedure is set out in ISO 527-3:1995. As used herein, the tensile strength is essentially the force needed to break the strand, and is given as a force (in Newtons) per strand. The force needed to break the strand may be determined using an appropriate machine, for example a tensile testing machine from Instron, model 68TM-5. Before measuring the tensile strength, the samples should be conditioned at 22°C ⁇ 1 °C and a relative humidity (RH) of (60 ⁇ 2) % for at least 48 hours. The atmospheric pressure should be within the range 96 kPa ⁇ 10 kPa.
  • the uncoiled length, coiled length, aspect ratio and/or tensile strength values of each strand may be calculated as averages of measurements taken for multiple strands.
  • the values may be calculated as averages of measurements taken for from about 5 to about 100 strands, such as from about 20 to about 70 strands, such as 50 strands.
  • the aerosol-generating material has a fill value of at least about 1 cm 3 /g, 1.5 cm 3 /g, 2 cm 3 /g, 2.5 cm 3 /g, 3 cm 3 /g, 3.5 cm 3 /g, 4 cm 3 /g, 4.5 cm 3 /g, or 5 cm 3 /g.
  • the fill value is less than about 5 cm 3 /g, 6 cm 3 /g, 7 cm 3 /g, 7.5 cm 3 /g, 8 cm 3 /g, 8.5 cm 3 /g, 9 cm 3 /g, 9.5 cm 3 /g or 10 cm 3 /g.
  • the aerosol-generating composition has a fill value from about 1 cm 3 /g to about 7.5 cm 3 /g, from about 1.5 cm 3 /g to about 7 cm 3 /g, from about 2 cm 3 /g to about 6 cm 3 /g or from about 2.5 cm 3 /g to about 5 cm 3 /g. .
  • the aerosol-generating material has a fill value of from about 3 cm 3 /g to about 10 cm 3 /g, from about 4 cm 3 /g to about 9.5 cm 3 /g, from about 4.5 cm 3 /g to about 9 cm 3 /g or from about 5 cm 3 /g to about 9 cm 3 /g.
  • the fill value is measured by placing a known weight of material within a cylinder of known dimensions. It is subjected to pressure from a weighted piston for 30 seconds. The residual height of the compressed sample is measured and converted to volume. The fill value is then calculated as the volume of material over the mass.
  • the fill value of the non-linear strands of the present invention may be determined by the following procedure: a 20 g sample of the material is deposited into a 60 mm diameter cylinder of a densimeter and then the material is compressed with a 2.90 ⁇ 0.03 kg piston for 30 seconds. The height of the piston in the densimeter is measured. The fill values of the samples are calculated according to the following formulae.
  • the volume occupied by the material when compressed is determined using Formula 1 :
  • the fill value can also be given in units of cm 3 /10g, with 1 cm 3 /g being equal to 10 cm 3 /10g.
  • the aerosol-generating material of the present invention has a higher fill value than aerosol-generating materials comprising the same components but which are formed as flat sheets (e.g. by casting), rolled sheets (e.g. by rolling flat sheets), or shredded sheets (e.g. by shredding flat sheets).
  • Filling value (also referred to herein as fill value) is a measure of the volume occupied by a given mass of material when a given pressure is applied. That is, the fill value is a measure of the ability of a material to occupy a specific volume.
  • a higher fill value material as an aerosol-generating material, it may be possible to provide articles and consumables having a lower overall weight than conventional articles. Reducing the overall weight can provide numerous advantages, such as reduced transportation costs as well as reduced material costs and/or taxes. Furthermore, reducing the weight of articles may also have a positive impact on the environment because less energy may be required to transport articles. In addition, consumers may prefer to carry and use a lighter-weight article. The material could also be used as a non-tobacco containing aerosol generating substrate.
  • the materials of the present invention have a higher fill value than conventional aerosol-generating materials because the packing efficiency of the aerosol-generating material in the form of non-linear strands is lower than conventional aerosol-generating materials, which may be in the form of flat sheets, rolled sheets or shredded sheets. That is, if a container having a given volume were filled with the material of the invention, the percentage of the container which is occupied by material would be lower than for a conventional aerosol-generating material which may be in the form of a flat, rolled or shredded sheet. Put another way, there would be a higher volume of voids or empty space in the container containing the material of the invention. Thus, less aerosol-generating material would be needed to fill the container.
  • Figure 11 shows an image of the same weight of an aerosol-generating material in the form of strands (left), compared to a similar material which is formed as a flat sheet and then shredded (right).
  • Figure 12 shows a photograph of an aerosol-generating material in the form of a number of non-linear strands.
  • the aerosol-generating material may comprise about 1 wt%, 3wt%, 5wt%, 10wt%, 15wt%, or 20wt% to about 80wt%, 60wt%, 50wt%, 40wt% or 30wt% of aerosol-generating agent (all calculated on a dry weight basis).
  • the aerosol-generating material comprises 1-80 wt%, 5-60wt%, or 10- 50wt% of aerosol-generating agent (all calculated on a dry weight basis).
  • the aerosol-generating material comprises 10-45wt%, 20-40wt% or 30-40% of aerosol-generating agent (all calculated on a dry weight basis).
  • the aerosol-generating material comprises 10-45wt%, 10-40wt% or 15-30wt% of aerosol-generating agent (all calculated on a dry weight basis). These amounts represent the total amount of aerosol-generating agent(s) in the aerosolgenerating material.
  • the aerosol-generating agent may comprise one or more of 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 diacetin mixture, benzyl benzoate, benzyl phenyl acetate, tributyrin, lauryl acetate, lauric acid, myristic acid, and propylene carbonate.
  • the aerosol-generating agent comprises, consists essentially of or consists of glycerol.
  • the aerosol-generating material may comprise about 1 wt%, 3 wt%, 5 wt%, 10 wt%, 15 wt%, 20 wt %, 30 wt%, 35 wt% or 40 wt% to about to 30 wt%, 35 wt%, 40 wt%, 50 wt%, 60 wt%, 65 wt % or 70 wt% of botanical extract (all calculated on a dry weight basis).
  • the aerosol-generating material comprises 1-70 wt%, 5-60 wt%, or 10-50 wt% of botanical extract (all calculated on a dry weight basis).
  • the aerosol-generating material may comprise 10-40 wt%, 10-35 wt%, 15-30 wt% of botanical extract (all calculated on a dry weight basis). In other embodiments, the aerosol-generating material may comprise 10-70 wt%, 20-65 wt%, 40-60 wt% of botanical extract (all calculated on a dry weight basis). These amounts represent the total amount of botanical extract(s) in the aerosol-generating material.
  • the botanical extract may comprise or consist of a botanical extract which naturally contains metal (e.g. calcium or magnesium) ions (i.e. the ions are present without being added). In some embodiments, the botanical extract naturally contains calcium ions.
  • the botanical extract may also be described as a plant extract.
  • botanical extract includes an extract of any material derived from plants including, but not limited to, extracts, leaves, bark, fibres, stems, roots, seeds, flowers, fruits, pollen, husk, shells or the like.
  • the botanical extract may comprise an active compound naturally existing in a botanical, obtained synthetically.
  • Example botanicals are tobacco, eucalyptus, star anise, hemp, cocoa, cannabis, fennel, lemongrass, peppermint, spearmint, rooibos, chamomile, flax, ginger, ginkgo biloba, hazel, hibiscus, laurel, licorice (liquorice), matcha, mate, orange skin, papaya, rose, sage, tea such as green tea or black tea, thyme, clove, cinnamon, coffee, aniseed (anise), basil, bay leaves, cardamom, coriander, cumin, nutmeg, oregano, paprika, rosemary, saffron, lavender, lemon peel, mint, juniper, elderflower, vanilla, Wintergreen, beefsteak plant, curcuma, turmeric, sandalwood, cilantro, bergamot, orange blossom, myrtle, cassis, valerian, pimento, mace, damien, marjoram, olive, lemon
  • the mint may be chosen from the following mint varieties: Mentha Arventis, Mentha c.v., Mentha niliaca, Mentha piperita, Mentha piperita citrata c.v., Mentha piperita c.v, Mentha spicata crispa, Mentha cardifolia, Memtha longifolia, Mentha suaveolens variegata, Mentha pulegium, Mentha spicata c.v. and Mentha suaveolens.
  • the botanical extract comprises a tobacco extract. In some embodiments, the botanical extract consists essentially of or consists of a tobacco extract. That is, in some embodiments the botanical extract is a tobacco extract.
  • the aerosol-generating material comprises a particulate botanical material.
  • the aerosol-generating material may comprise about 1 wt%, 3 wt%, 5 wt%, 10 wt%, 15 wt%, 20 wt %, 30 wt%, 35 wt% or 40 wt% to about to 30 wt%, 35 wt%, 40 wt%, 50 wt%, 60 wt%, 65 wt % or 70 wt% of particulate botanical material (all calculated on a dry weight basis).
  • the aerosol-generating material comprises 1-70 wt%, 5-60 wt%, 10-50 wt%, or 30-40 wt% of particulate botanical material (all calculated on a dry weight basis).
  • the particulate botanical comprises or is particulate tobacco material.
  • the aerosol-generating material comprises tobacco extract.
  • the tobacco extract may contain nicotine at a concentration such that the aerosolgenerating material comprises 1wt% 1.5wt%, 2wt% or2.5wt% to about 10wt%, 8wt%, 6wt%, 5wt%, 4.5wt% or 4wt% (calculated on a dry weight basis) of nicotine.
  • the aerosol-generating material may comprise 1-10 wt%, 2.5-8 wt% or 2-6wt% nicotine. In some cases, there may be no nicotine in the aerosol-generating material other than that which results from the tobacco extract.
  • the aerosol-generating material comprises an additional active other than a botanical extract.
  • the active comprises nicotine.
  • the active substance comprises caffeine, melatonin or vitamin B12.
  • the active substance may comprise one or more constituents, derivatives or extracts of cannabis, such as one or more cannabinoids or terpenes.
  • Cannabinoids are a class of natural or synthetic chemical compounds which act on cannabinoid receptors (i.e., CB1 and CB2) in cells that repress neurotransmitter release in the brain.
  • Cannabinoids may be naturally occurring (phytocannabinoids) from plants such as cannabis, from animals (endocannabinoids), or artificially manufactured (synthetic cannabinoids).
  • Cannabis species express at least 85 different phytocannabinoids, and are divided into subclasses, including cannabigerols, cannabichromenes, cannabidiols, tetrahydrocannabinols, cannabinols and cannabinodiols, and other cannabinoids.
  • Cannabinoids found in cannabis include, without limitation: cannabigerol (CBG), cannabichromene (CBC), cannabidiol (CBD), tetrahydrocannabinol (THC), cannabinol (CBN), cannabinodiol (CBDL), cannabicyclol (CBL), cannabivarin (CBV), tetrahydrocannabivarin (THCV), cannabidivarin (CBDV), cannabichromevarin (CBCV), cannabigerovarin (CBGV), cannabigerol monomethyl ether (CBGM), cannabinerolic acid, cannabidiolic acid (CBDA), Cannabinol propyl variant (CBNV), cannabitriol (CBO), tetrahydrocannabmolic acid (THCA), and tetrahydrocannabivarinic acid (THCV A).
  • CBD cannabigerol
  • the active substance may comprise a cannabinoid, such as cannabidiol (CBD).
  • CBD cannabidiol
  • the aerosol-generating material may comprise an amount of about 1wt%, 5wt%, 6 wt%, 7 wt%, 10wt%, or 15wt% to about 20 wt%, 25wt%, 30wt%, 40wt%, 50wt% or 60wt% of crosslinked binder (all calculated on a dry weight basis).
  • the aerosol-generating material may comprise an amount of 1-60 wt%, 5- 50 wt%, 6-40wt%, 7-20wt% or 15-25wt% of binder (dry weight basis). These amounts represent the total amount of binder(s) in the aerosol-generating material.
  • the crosslinked binder may comprise or consist of a non-cellulosic binder.
  • non-cellulosic binders which may be used include, but are not limited to, alginates, pectins, carrageenans (e.g. iota-carrageenan), gellan gums (e.g. high acyl gellan gum), and combinations thereof.
  • the crosslinked binder may comprise or consist of a flexible binder. Examples of flexible binders which may be used include, but are not limited to, pectins, iota- carrageenan, gellan gums (e.g. high acyl gellan gum), and combinations thereof.
  • the crosslinked binder comprises a flexible binder in combination with one or more other binders such as alginate.
  • the binder comprises alginate and/or pectin and/or carrageenan.
  • the binder comprises alginate and/or iota- carrageenan.
  • the binder comprises, consists essentially of, or consists of alginate and pectin.
  • the binder comprises, consists essentially of, or consists of alginate and iota-carrageenan.
  • the binder does not comprise alginate.
  • the binder comprises, consists essentially of, or consists of iota-carrageenan.
  • the aerosol-generating material may be substantially free of cellulosic binder. “Substantially free” means that material comprises less than 1wt%, such as less than 0.5wt% of the relevant component (dry weight basis). In some embodiments, the aerosol-generating material does not comprise a cellulosic binder.
  • the aerosol-generating material may be substantially free of carboxymethylcellulose (CMC). In some embodiments, the aerosol-generating material does not comprise CMC.
  • the binder comprises alginate, and the alginate is present in the aerosol-generating material in an amount of 5-50wt%, 8-40wt%, 10-30wt%, or 15-25wt% of the aerosol-generating material (calculated on a dry weight basis). In some embodiments, alginate is the only binder present in the aerosol-generating material. In other embodiments, the binder comprises alginate and at least one further non-cellulosic binder, such as pectin.
  • the binder comprises alginate, and the alginate is present in the aerosol-generating material in an amount of 1-30wt%, 2-20wt%, 3-20wt%, or 5-15wt% of the aerosol-generating material (calculated on a dry weight basis).
  • the binder comprises alginate and at least one non- cellulosic flexible binder, such as iota-carrageenan.
  • the binder comprises iota-carrageenan, and the iota- carrageenan is present in the aerosol-generating material in an amount of 1-30wt%, 2-20wt%, 2-20wt%, or 10-20wt% of the aerosol-generating material (calculated on a dry weight basis).
  • the aerosol-generating material comprises 5-15 wt% alginate and 10-20 wt% iota-carrageenan (calculated on a dry weight basis).
  • iota-carrageenan is the only binder present in the aerosol-generating material.
  • the binder comprises iota- carrageenan and at least one further non-cellulosic binder.
  • the aerosol-generating material comprises multiple binders.
  • the aerosol-generating material comprises a crosslinked binder and a non-crosslinked binder.
  • the non-crosslinked binder may be a cellulosic binder.
  • cellulosic binders which may be used include, but are not limited to, hydroxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, carboxymethylcellulose (CMC), hydroxypropyl methylcellulose (HPMC), methyl cellulose, ethyl cellulose, cellulose acetate (CA), cellulose acetate butyrate (CAB), and cellulose acetate propionate (CAP).
  • the cellulosic binder is selected from hydroxyethyl cellulose, hydroxypropyl cellulose, and/or carboxymethylcellulose. In some embodiments, the cellulosic binder comprises carboxymethylcellulose (CMC). In some embodiments, the cellulosic binder is carboxymethylcellulose (CMC).
  • an aerosol-generating material in the form of one or more non-linear strands, wherein the aerosol-generating material comprises an aerosol-generating agent, a botanical extract and a binder selected from the group consisting of alginate, pectin, carrageenan, (such as iota- carrageenan), gellan gum (such as high acyl gellan gum), and combinations thereof.
  • the total amount of binder may be the same as the amounts described above in relation to the crosslinked binder.
  • the aerosol-generating material of this embodiment may comprise an amount of 1-60 wt%, 5-50 wt%, 6- 40wt%, 7-20wt% or 15-25 wt% of binder (dry weight basis).
  • the aerosol-generating material comprises a crosslinking agent.
  • the crosslinking agent comprises calcium ions.
  • the crosslinking agent comprises calcium lactate, calcium formate, and/or calcium acetate.
  • the crosslinking agent comprises calcium lactate.
  • the aerosol-generating material comprises a calcium-crosslinked alginate.
  • the crosslinking agent may also be described as a setting agent.
  • the aerosol-generating material may comprise from about 0.1 wt%, 0.5wt%, 1wt%, 3wt% or 5wt% to about 10wt%, 9wt%, 8 wt% or 7wt% of crosslinking agent (all calculated on a dry weight basis).
  • the aerosol-generating material may comprise 1-10 wt%, 3-8 wt% or 5-7 wt% of crosslinking agent (dry weight basis). These amounts represent the total amount of crosslinking agent(s) in the aerosolgenerating material.
  • the aerosol-generating material may comprise about 1wt%, 10wt% or 20wt% to about 80wt%, 60wt% or 50wt% of flavour in addition to the botanical extract (all calculated on a dry weight basis).
  • the aerosol-generating material may comprise 1-80wt%, 10-60wt%, or 20-50wt% of additional flavour. These amounts represent the total amount of flavour(s) in the aerosol-generating material, if a flavour is present, in addition to the botanical extract.
  • the additional flavour may be a further botanical extract.
  • flavour and “flavourant” refer to materials which, where local regulations permit, may be used to create a desired taste, aroma, or other somatosensorial sensation in a product for adult consumers. 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, matcha, 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
  • the flavour comprises menthol, spearmint and/or peppermint. In some embodiments, the flavour comprises, consists essentially of or consists of menthol.
  • flavourant is a water-soluble flavourant.
  • the flavourant may be incorporated during the formation of the aerosolgenerating material (e.g. when forming a slurry comprising the materials that form the aerosol-generating material) or it may be applied to the aerosol-generating material after its formation (e.g. by spraying it onto the aerosol-generating material after drying).
  • the aerosol-generating material comprises from about 1wt%, 5wt%, 10wt%, 18wt%, 20wt%, 30wt% or 40 wt% to about 80 wt%, 70wt%, 60wt%, 50wt%, 45wt%, 40wt%, 35wt% or 30wt% of filler (all calculated on a dry weight basis).
  • the aerosol-generating material may comprise 1-60wt%, 1-50wt%. 5-45wt%, 10-40wt%, 18-35wt% or 20-30wt% of filler (all calculated on a dry weight basis).
  • the aerosol-generating material may comprise 1- 70wt%, 10-65wt%, 20-60wt%, 30-60wt%, or 40-60wt% of filler (all calculated on a dry weight basis).
  • the aerosol-generating material may comprise 10-80wt%, 20-70wt%, 30-65wt% or 40-65wt% of filler (all calculated on a dry weight basis). These amounts represent the total amount of filler(s) in the aerosol-generating material.
  • the aerosol-generating material comprises less than 70 wt.% filler, such as less than 60 wt.% filler, less than 50 wt.%, less than 30 wt.%, less than 20 wt.% or less than 10 wt.%. In some embodiments the aerosol-generating material is substantially free or complete free of filler.
  • the filler may comprise one or more inorganic filler materials, such as calcium carbonate, perlite, vermiculite, diatomaceous earth, colloidal silica, magnesium oxide, magnesium sulphate, magnesium carbonate, and suitable inorganic sorbents, such as molecular sieves.
  • the filler may comprise one or more organic filler materials such as wood pulp, cellulose and cellulose derivatives (e.g. ground cellulose).
  • aerosol-generating material comprises less than 10 wt%, less than 5 wt%, less than 1 wt% or no calcium carbonate such as chalk. It may be desirable to avoid including high amounts of calcium carbonate (e.g.
  • calcium carbonate has a high density.
  • including high amounts of calcium carbonate can cause the material to become dense and/or have a low fill value and/or may delay aerosol release.
  • the filler is fibrous.
  • the filler may be a fibrous organic filler material such as wood pulp, hemp fibre, cellulose or cellulose derivatives, such as microcrystalline cellulose (MCC), nanocrystalline cellulose and/or ground cellulose.
  • MCC microcrystalline cellulose
  • the filler comprises wood pulp, MCC and/or ground cellulose.
  • the filler comprises MCC and/or ground cellulose.
  • the filler comprises (or is) wood pulp.
  • the filler does not comprise wood pulp.
  • the aerosol-generating material comprises less than 10 wt% wood pulp, such as less than about 5 wt%, less than about 4 wt%, less than about 2 wt% or less than about 1 wt%. In some cases, the aerosol-generating material comprises no wood pulp.
  • any filler present in the aerosol-generating material has a particle size of less than about 2 mm, such as less than about 1.5 mm, less than about 1 mm, less than about 0.5 mm, less than about 0.4 mm, less than about 0.3 mm or less than about 0.2 mm.
  • any filler present in the aerosol-generating material has an average (e.g. number average) particle size of less than about 2 mm, such as less than about 1.5 mm, less than about 1 mm, less than about 0.5 mm, less than about 0.4 mm, less than about 0.3 mm or less than about 0.2 mm
  • particle size refers to the longest dimension of a particle (e.g. the diameter of a spherical particle). Particles of different sizes can be separated by known methods, such as sieving.
  • the inventors have found that forming a material of the invention including wood pulp can be difficult, as the wood pulp may clog or block the nozzle through which the mixture is ejected. It is believed that this may be due to the particle size of wood pulp, which is typically at least 0.5 mm and often at least 1 mm. As a result, it may be advantageous to reduce the amount of wood pulp present in the material and/or ensure that any filler present in the material has a small particle size (e.g. less than the size of the nozzle diameter).
  • the filler comprises maltodextrin or microcrystalline cellulose (MCC).
  • MCC microcrystalline cellulose
  • MCC microcrystalline cellulose
  • MCC microcrystalline cellulose
  • a chemical process e.g. using an acid or enzyme.
  • One example method for forming microcrystalline cellulose involves acid hydrolysis of cellulose, using an acid such as HCI. The cellulose produced after this treatment is crystalline (i.e. no amorphous regions remain). Suitable methods and conditions for forming microcrystalline cellulose are well-known in the art.
  • the filler has a density of less than about 2 g/cm 3 , such as less than about 0.5 g/cm 3 or less than about 0.3 g/cm 3 .
  • the aerosol-generating material may have any suitable water content, such as from 1wt % to 15wt%.
  • the water content of the aerosol-generating material may be from about 5wt%, 7wt% or 9wt% to about 15wt%, 13wt%, 11wt%, 9 wt% or 8 wt% (wet weight basis) (WWB).
  • the aerosolgenerating material has a water content of less than about 9 wt% (WWB), such as less than about 8 wt% (WWB).
  • the water content of the aerosol-generating material may, for example, be determined by Karl-Fischer-titration or Gas Chromatography with Thermal Conductivity Detector (GC-TCD).
  • Amounts of constituents of the aerosol-generating material can be determined by gas chromatography with a flame ionisation detector (GC-FID).
  • aerosolgenerating agent e.g. glycerol
  • flavourant e.g. menthol
  • the aerosol-generating material may comprise a colourant.
  • the addition of a colourant may alter the visual appearance of the aerosol-generating material.
  • the presence of colourant in the aerosol-generating material may enhance the visual appearance of the aerosol-generating material and the aerosol-generating composition.
  • the aerosolgenerating material may be colour-matched to other components of the aerosolgenerating composition or to other components of an article comprising the aerosolgenerating material.
  • the colour of aerosol-generating material may be, for example, white, green, red, purple, blue, brown or black. Other colours are also envisaged. Natural or synthetic colourants, such as natural or synthetic dyes, foodgrade colourants and pharmaceutical-grade colourants may be used.
  • the colourant is caramel, which may confer the aerosol-generating material with a brown appearance.
  • the colour of the aerosolgenerating material may be similar to the colour of other components (such as tobacco material) in an aerosol-generating composition comprising the aerosolgenerating material.
  • the addition of a colourant to the aerosolgenerating material renders it visually indistinguishable from other components in the aerosol-generating composition.
  • the colourant may be incorporated during the formation of the aerosolgenerating material (e.g. when forming a slurry comprising the materials that form the aerosol-generating material) or it may be applied to the aerosol-generating material after its formation (e.g. by spraying it onto the aerosol-generating material).
  • (brown) wood pulp is present as a filler, and a colourant may therefore be unnecessary.
  • the aerosol-generating composition additionally comprises an active substance, such that the aerosol-generating composition comprises the aerosol-generating material and an active substance.
  • the aerosol-generating composition additionally comprises a tobacco material and/or nicotine.
  • the aerosol-generating composition may comprise 5-60wt% (calculated on a dry weight basis) of a tobacco material and/or nicotine.
  • the aerosol-generating composition may comprise from about 1wt%, 5wt%, 10wt%, 15wt%, 20wt% or25wt% to about 70wt%, 60wt%, 50wt%, 45wt%, 40wt%, 35wt%, or 30wt% (calculated on a dry weight basis) of an active substance.
  • the aerosol-generating composition may comprise from about 1wt%, 5wt%, 10wt%, 15wt%, 20wt% or25wt% to about 70wt%, 60wt%, 50wt%, 45wt%, 40wt%, 35wt%, or 30wt% (calculated on a dry weight basis) of a tobacco material.
  • the aerosol-generating composition may comprise 10-50wt%, 15-40wt% or 20-35wt% of a tobacco material.
  • the aerosol-generating composition may comprise from about 1wt%, 2wt%, 3wt% or 4wt% to about 20wt%, 18wt%, 15wt% or 12wt% (calculated on a dry weight basis) of nicotine.
  • the aerosol-generating composition may comprise 1-20wt%, 2-18wt% or 3-12wt% of nicotine.
  • the aerosol-generating composition comprises the aerosol-generating material defined herein and a second aerosol-generating material, which may be tobacco.
  • the aerosol-generating composition comprises the aerosol-generating material defined herein and tobacco.
  • the aerosol-generating material may be shredded and then mixed with tobacco, such as cut-rag tobacco.
  • the aerosol-generating composition may be in the form of a shredded composition, where the aerosol-generating material and the tobacco are both shredded and mixed together.
  • the aerosol-generating composition may comprise from about 5wt%, 10wt%, 15wt% or 20wt% to about 35wt%, 40wt%, 45wt% or 50wt% aerosol-generating material.
  • the aerosol-generating composition may comprise from about 10 to about 50 wt% of the aerosol-generating material of the invention, such as from about 20 to about 40 wt%.
  • the remainder of the aerosolgenerating composition may comprise tobacco, optionally in combination with a flavourant and/or an acid.
  • the aerosol-generating composition may comprise from about 10 to about 50 wt% aerosol-generating material and from about 50 to about 90 wt% tobacco, or from about 20 to about 40 wt% aerosol-generating material and from about 60 to about 80 wt% tobacco.
  • the tobacco comprises (or is) dry ice expanded tobacco (DIET).
  • the aerosol-generating composition comprises a mixture of the aerosol-generating material of the invention and DIET, optionally in combination with other tobacco (e.g. cut rag tobacco).
  • DIET is known to have a very high filling value (generally above 7 cm 3 /g), and is sometimes used to reduce the weight of an article or consumable for use in an aerosol provision system. However, it is also known to have a poor flavour profile.
  • the presently claimed aerosol-generating material may therefore offer an improved alternative to DIET, because it has a high fill value but an improved taste profile. It may also be possible to combine DIET with the aerosol-generating material of the invention, thereby reducing the amount of DIET needed to achieve the desired fill value.
  • the aerosol-generating composition comprises no tobacco material but does comprise nicotine.
  • the aerosolgenerating composition may comprise from about 1wt%, 2wt%, 3wt% or 4wt% to about 20wt%, 18wt%, 15wt% or 12wt% (calculated on a dry weight basis) of nicotine.
  • the aerosol-generating composition may comprise 1-20wt%, 2-18wt% or 3-12wt% of nicotine.
  • the fill value of the aerosol-generating composition may be determined by the fill value of the aerosol-generating material, the fill value of any other material in the composition (e.g. tobacco), and the relative proportions of the materials in the composition.
  • the fill value of a composition may therefore be estimated.
  • the aerosol-generating composition has a fill value of at least about 2 cm 3 /g, 2.5 cm 3 /g, 3 cm 3 /g, 3.5 cm 3 /g, 4 cm 3 /g, 4.5 cm 3 /g, or 5 cm 3 /g. In some embodiments the fill value is less than about 6 cm 3 /g, 6.5 cm 3 /g, 7 cm 3 /g, 7.5 cm 3 /g, 8 cm 3 /g, 8.5 cm 3 /g, 9 cm 3 /g, 9.5 cm 3 /g or 10 cm 3 /g.
  • the aerosol-generating composition has a fill value from about 2 cm 3 /g to about 7.5 cm 3 /g, from about 3 cm 3 /g to about 7 cm 3 /g, from about 3.5 cm 3 /g to about 6 cm 3 /g from about 4 cm 3 /g to about 6 cm 3 /g or from about 5 cm 3 /g to about 6 cm 3 /g.
  • the aerosol-generating composition has a fill value of from about 3 cm 3 /g to about 10 cm 3 /g, from about 4 cm 3 /g to about 9.5 cm 3 /g, from about 4.5 cm 3 /g to about 9 cm 3 /g or from about 5 cm 3 /g to about 9 cm 3 /g.
  • the aerosol-generating material and/or the aerosol-generating composition may comprise an acid.
  • the acid may be an organic acid.
  • the acid may be at least one of a monoprotic acid, a diprotic acid and a triprotic acid.
  • the acid may contain at least one carboxyl functional group.
  • the acid may be at least one of an alpha-hydroxy acid, carboxylic acid, dicarboxylic acid, tricarboxylic acid and keto acid.
  • the acid may be an alpha-keto acid.
  • the acid may be at least one of succinic acid, lactic acid, benzoic acid, citric acid, tartaric acid, fumaric acid, levulinic acid, acetic acid, malic acid, formic acid, sorbic acid, benzoic acid, propanoic and pyruvic acid.
  • the acid is lactic acid.
  • the acid is benzoic acid.
  • the acid may be an inorganic acid.
  • the acid may be a mineral acid.
  • the acid may be at least one of sulphuric acid, hydrochloric acid, boric acid and phosphoric acid.
  • the acid is levulinic acid and/or pyruvic acid.
  • the acid is selected from lactic acid, benzoic acid and levulinic acid.
  • Inclusion of an acid is particularly preferred in embodiments in which the aerosol-generating composition comprises nicotine.
  • the presence of the acid may reduce or substantially prevent evaporation of nicotine during drying of the slurry, thereby reducing loss of nicotine during manufacturing.
  • the presence of the acid may also improve the flavour and impact of the aerosol when nicotine is present. For example, the perceived harshness of the nicotine may be reduced by the presence of the acid.
  • the aerosol-generating material is substantially free from tobacco other than any tobacco extract that is present.
  • substantially free from it is meant that the material comprises less than 1wt%, such as less than 0.5wt% tobacco (dry weight basis).
  • the aerosol-generating material is free from tobacco other than any tobacco extract that is present.
  • the aerosol-generating material does not comprise tobacco fibres and/or tobacco particles.
  • the aerosol-generating material does not comprise fibrous material.
  • any tobacco present in the slurry used to form the aerosol-generating material may cause the binder to prematurely crosslink, making formation of the non-linear strands of the invention more difficult.
  • the slurry used to form the aerosol-generating material is substantially free from or free from tobacco.
  • the aerosol-generating composition does not comprise tobacco fibres and/or tobacco particles. In particular embodiments, the aerosol-generating composition does not comprise fibrous material.
  • the aerosol-generating article does not comprise tobacco fibres and/or tobacco particles. In particular embodiments, the aerosolgenerating article does not comprise fibrous material.
  • the aerosol-generating material may be made from a gel, and this gel may additionally comprise a solvent, included at 0.1-50wt%. However, the inclusion of a solvent in which the flavour is soluble may reduce the gel stability and the flavour may crystallise out of the gel. As such, in some cases, the gel does not include a solvent in which the flavour is soluble.
  • An aspect of the present invention relates to an article (also referred to herein as a consumable).
  • a consumable is an article, part or all of which is intended to be consumed during use by a user.
  • a consumable may comprise or consist of aerosolgenerating composition.
  • a consumable may comprise one or more other elements, such as a filter or an aerosol modifying substance.
  • a consumable may comprise a heating element that emits heat to cause the aerosol-generating composition to generate aerosol in use.
  • the heating element may, for example, comprise combustible material, or may comprise a susceptor that is heatable by penetration with a varying magnetic field.
  • Articles of the present invention may be provided in any suitable shape.
  • the article is provided as a rod (e.g. substantially cylindrical).
  • An article provided as a rod may include the aerosol-generating composition, optionally blended with cut tobacco.
  • a susceptor is material that is heatable by penetration with a varying magnetic field, such as an alternating magnetic field.
  • the heating material may be an electrical ly-conductive material, so that penetration thereof with a varying magnetic field causes induction heating of the heating material.
  • the heating material may be magnetic material, so that penetration thereof with a varying magnetic field causes magnetic hysteresis heating of the heating material.
  • the heating material may be both electrically-conductive and magnetic, so that the heating material is heatable by both heating mechanisms.
  • Induction heating is a process in which an electrically-conductive object is heated by penetrating the object with a varying magnetic field.
  • An induction heater may comprise an electromagnet and a device for passing a varying electrical current, such as an alternating current, through the electromagnet.
  • a varying electrical current such as an alternating current
  • the electromagnet and the object to be heated are suitably relatively positioned so that the resultant varying magnetic field produced by the electromagnet penetrates the object, one or more eddy currents are generated inside the object.
  • the object has a resistance to the flow of electrical currents. Therefore, when such eddy currents are generated in the object, their flow against the electrical resistance of the object causes the object to be heated.
  • the susceptor is in the form of a closed circuit. It has been found that, when the susceptor is in the form of a closed circuit, magnetic coupling between the susceptor and the electromagnet in use is enhanced, which results in greater or improved Joule heating.
  • Magnetic hysteresis heating is a process in which an object made of a magnetic material is heated by penetrating the object with a varying magnetic field.
  • a magnetic material can be considered to comprise many atomic-scale magnets, or magnetic dipoles. When a magnetic field penetrates such material, the magnetic dipoles align with the magnetic field. Therefore, when a varying magnetic field, such as an alternating magnetic field, for example as produced by an electromagnet, penetrates the magnetic material, the orientation of the magnetic dipoles changes with the varying applied magnetic field. Such magnetic dipole reorientation causes heat to be generated in the magnetic material.
  • An aspect of the invention provides non-combustible aerosol provision system comprising an article according as described herein and non-combustible aerosol provision device comprising a heater which is configured to heat not burn the aerosol-generating article.
  • a non-combustible aerosol provision system may also be referred to as an aerosol generating assembly.
  • a non-combustible aerosol provision device may be referred to as an aerosol generating apparatus.
  • the heater may heat, without burning, the aerosolgenerating material to a temperature equal to or less than 350 °C, such as between 120°C and 350 °C. In some cases, the heater may heat, without burning, the aerosolgenerating composition to between 140 °C and 250 °C in use, or between 220 °C and 280 °C. In some cases in use, substantially all of the aerosol-generating material is less than about 4mm, 3mm, 2mm or 1 mm from the heater. In some cases, the material is disposed between about 0.010mm and 2.0mm from the heater, suitably between about 0.02mm and 1.0mm, suitably 0.1mm to 0.5mm. In some cases, a surface of the aerosol-generating material may directly abut the heater.
  • the heater is configured to heat not burn the aerosol-generating article, and thus the aerosol-generating composition.
  • the heater may be, in some cases, a thin film, electrically resistive heater. In other cases, the heater may comprise an induction heater or the like.
  • the heater may be a combustible heat source or a chemical heat source which undergoes an exothermic reaction to product heat in use.
  • the aerosol generating assembly may comprise a plurality of heaters. The heater(s) may be powered by a battery.
  • the aerosol-generating article may additionally comprise a cooling element and/or a filter.
  • the cooling element if present, may act or function to cool gaseous or aerosol components. In some cases, it may act to cool gaseous components such that they condense to form an aerosol. It may also act to space the very hot parts of the non-combustible aerosol provision device from the user.
  • the filter if present, may comprise any suitable filter known in the art such as a cellulose acetate plug.
  • the aerosol generating assembly may be a heat-not-burn device. That is, it may contain a solid aerosol-generating material (and no liquid aerosol-generating material). In some cases, the aerosol-generating material may comprise the tobacco material.
  • a heat-not-burn device is disclosed in WO 2015/062983 A2, which is incorporated by reference in its entirety.
  • the aerosol generating assembly may be an electronic tobacco hybrid device. An electronic tobacco hybrid device is disclosed in WO 2016/135331 A1 , which is incorporated by reference in its entirety.
  • the aerosol-generating article (which may be referred to herein as an article, a cartridge or a consumable) may be adapted for use in a THP, an electronic tobacco hybrid device or another aerosol generating device.
  • the article may additionally comprise a filter and/or cooling element (which have been described above).
  • the aerosol-generating article may be circumscribed by a wrapping material such as paper.
  • the aerosol-generating article may additionally comprise ventilation apertures. These may be provided in the sidewall of the article. In some cases, the ventilation apertures may be provided in the filter and/or cooling element. These apertures may allow cool air to be drawn into the article during use, which can mix with the heated volatilised components thereby cooling the aerosol.
  • the ventilation enhances the generation of visible heated volatilised components from the article when it is heated in use.
  • the heated volatilised components are made visible by the process of cooling the heated volatilised components such that supersaturation of the heated volatilised components occurs.
  • the heated volatilised components then undergo droplet formation, otherwise known as nucleation, and eventually the size of the aerosol particles of the heated volatilised components increases by further condensation of the heated volatilised components and by coagulation of newly formed droplets from the heated volatilised components.
  • the ratio of the cool air to the sum of the heated volatilised components and the cool air is at least 15%.
  • a ventilation ratio of 15% enables the heated volatilised components to be made visible by the method described above. The visibility of the heated volatilised components enables the user to identify that the volatilised components have been generated and adds to the sensory experience of the smoking experience.
  • the ventilation ratio is between 50% and 85% to provide additional cooling to the heated volatilised components.
  • the ventilation ratio may be at least 60% or 65%.
  • FIG. 1 and 2 there are shown a partially cut-away section view and a perspective view of an example of an aerosol-generating article 101.
  • the article 101 is adapted for use with a device having a power source and a heater.
  • the article 101 of this embodiment is particularly suitable for use with the device 1 shown in Figures 5 to 7, described below.
  • the article 101 may be removably inserted into the device shown in Figure 5 at an insertion point 20 of the device 1.
  • the article 101 of one example is in the form of a substantially cylindrical rod that includes a body of aerosol-generating composition 103 and a filter assembly 105 in the form of a rod.
  • the aerosol-generating composition comprises the aerosolgenerating material described herein.
  • the filter assembly 105 includes three segments, a cooling segment 107, a filter segment 109 and a mouth end segment 111.
  • the article 101 has a first end 113, also known as a mouth end or a proximal end and a second end 115, also known as a distal end.
  • the body of aerosol-generating composition 103 is located towards the distal end 115 of the article 101.
  • the cooling segment 107 is located adjacent the body of aerosol-generating composition 103 between the body of aerosol-generating composition 103 and the filter segment 109, such that the cooling segment 107 is in an abutting relationship with the aerosol-generating composition 103 and the filter segment 103.
  • the filter segment 109 is located in between the cooling segment 107 and the mouth end segment 111.
  • the mouth end segment 111 is located towards the proximal end 113 of the article 101 , adjacent the filter segment 109.
  • the filter segment 109 is in an abutting relationship with the mouth end segment 111.
  • the total length of the filter assembly 105 is between 37mm and 45mm, more preferably, the total length of the filter assembly 105 is 41mm.
  • the rod of aerosol-generating composition 103 is between 34mm and 50mm in length, suitably between 38mm and 46mm in length, suitably 42mm in length.
  • the total length of the article 101 is between 71 mm and 95mm, suitably between 79mm and 87mm, suitably 83mm.
  • An axial end of the body of aerosol-generating composition 103 is visible at the distal end 115 of the article 101.
  • the distal end 115 of the article 101 may comprise an end member (not shown) covering the axial end of the body of aerosol-generating composition 103.
  • the body of aerosol-generating composition 103 is joined to the filter assembly 105 by annular tipping paper (not shown), which is located substantially around the circumference of the filter assembly 105 to surround the filter assembly 105 and extends partially along the length of the body of aerosol-generating composition 103.
  • the tipping paper is made of 58GSM standard tipping base paper.
  • the tipping paper has a length of between 42mm and 50mm, suitably of 46mm.
  • the cooling segment 107 is an annular tube and is located around and defines an air gap within the cooling segment.
  • the air gap provides a chamber for heated volatilised components generated from the body of aerosolgenerating composition 103 to flow.
  • the cooling segment 107 is hollow to provide a chamber for aerosol accumulation yet rigid enough to withstand axial compressive forces and bending moments that might arise during manufacture and whilst the article 101 is in use during insertion into the device 1.
  • the thickness of the wall of the cooling segment 107 is approximately 0.29mm.
  • the cooling segment 107 provides a physical displacement between the aerosol-generating composition 103 and the filter segment 109.
  • the physical displacement provided by the cooling segment 107 will provide a thermal gradient across the length of the cooling segment 107.
  • the cooling segment 107 is configured to provide a temperature differential of at least 40 degrees Celsius between a heated volatilised component entering a first end of the cooling segment 107 and a heated volatilised component exiting a second end of the cooling segment 107.
  • the cooling segment 107 is configured to provide a temperature differential of at least 60 degrees Celsius between a heated volatilised component entering a first end of the cooling segment 107 and a heated volatilised component exiting a second end of the cooling segment 107.
  • This temperature differential across the length of the cooling element 107 protects the temperature sensitive filter segment 109 from the high temperatures of the aerosol-generating composition 103 when it is heated by the device 1. If the physical displacement was not provided between the filter segment 109 and the body of aerosol-generating composition 103 and the heating elements of the device 1 , then the temperature sensitive filter segment may 109 become damaged in use, so it would not perform its required functions as effectively.
  • the length of the cooling segment 107 is at least 15mm. In one example, the length of the cooling segment 107 is between 20mm and 30mm, more particularly 23mm to 27mm, more particularly 25mm to 27mm, suitably 25mm.
  • the cooling segment 107 is made of paper, which means that it is comprised of a material that does not generate compounds of concern, for example, toxic compounds when in use adjacent to the heater of the device 1 .
  • the cooling segment 107 is manufactured from a spirally wound paper tube which provides a hollow internal chamber yet maintains mechanical rigidity. Spirally wound paper tubes are able to meet the tight dimensional accuracy requirements of highspeed manufacturing processes with respect to tube length, outer diameter, roundness and straightness.
  • the cooling segment 107 is a recess created from stiff plug wrap or tipping paper.
  • the stiff plug wrap or tipping paper is manufactured to have a rigidity that is sufficient to withstand the axial compressive forces and bending moments that might arise during manufacture and whilst the article 101 is in use during insertion into the device 1.
  • the filter segment 109 may be formed of any filter material sufficient to remove one or more volatilised compounds from heated volatilised components from the aerosol-generating material.
  • the filter segment 109 is made of a mono-acetate material, such as cellulose acetate.
  • the filter segment 109 provides cooling and irritation-reduction from the heated volatilised components without depleting the quantity of the heated volatilised components to an unsatisfactory level for a user.
  • a capsule (not illustrated) may be provided in filter segment 109. It may be disposed substantially centrally in the filter segment 109, both across the filter segment 109 diameter and along the filter segment 109 length. In other cases, it may be offset in one or more dimension.
  • the capsule may in some cases, where present, contain a volatile component such as a flavourant or aerosol generating agent.
  • the density of the cellulose acetate tow material of the filter segment 109 controls the pressure drop across the filter segment 109, which in turn controls the draw resistance of the article 101 . Therefore the selection of the material of the filter segment 109 is important in controlling the resistance to draw of the article 101. In addition, the filter segment performs a filtration function in the article 101.
  • the filter segment 109 is made of a 8Y15 grade of filter tow material, which provides a filtration effect on the heated volatilised material, whilst also reducing the size of condensed aerosol droplets which result from the heated volatilised material.
  • the presence of the filter segment 109 provides an insulating effect by providing further cooling to the heated volatilised components that exit the cooling segment 107. This further cooling effect reduces the contact temperature of the user’s lips on the surface of the filter segment 109.
  • the filter segment 109 is between 6mm to 10mm in length, suitably 8mm.
  • the mouth end segment 111 is an annular tube and is located around and defines an air gap within the mouth end segment 111.
  • the air gap provides a chamber for heated volatilised components that flow from the filter segment 109.
  • the mouth end segment 111 is hollow to provide a chamber for aerosol accumulation yet rigid enough to withstand axial compressive forces and bending moments that might arise during manufacture and whilst the article is in use during insertion into the device 1 .
  • the thickness of the wall of the mouth end segment 111 is approximately 0.29mm.
  • the length of the mouth end segment 111 is between 6mm to 10mm, suitably 8mm.
  • the mouth end segment 111 may be manufactured from a spirally wound paper tube which provides a hollow internal chamber yet maintains critical mechanical rigidity. Spirally wound paper tubes are able to meet the tight dimensional accuracy requirements of high-speed manufacturing processes with respect to tube length, outer diameter, roundness and straightness.
  • the mouth end segment 111 provides the function of preventing any liquid condensate that accumulates at the exit of the filter segment 109 from coming into direct contact with a user.
  • the mouth end segment 111 and the cooling segment 107 may be formed of a single tube and the filter segment 109 is located within that tube separating the mouth end segment 111 and the cooling segment 107.
  • FIGS 3 and 4 there are shown a partially cut-away section and perspective views of an example of an article 301 .
  • the reference signs shown in Figures 3 and 4 are equivalent to the reference signs shown in Figures 1 and 2, but with an increment of 200.
  • a ventilation region 317 is provided in the article 301 to enable air to flow into the interior of the article 301 from the exterior of the article 301.
  • the ventilation region 317 takes the form of one or more ventilation holes 317 formed through the outer layer of the article 301.
  • the ventilation holes may be located in the cooling segment 307 to aid with the cooling of the article 301.
  • the ventilation region 317 comprises one or more rows of holes, and preferably, each row of holes is arranged circumferentially around the article 301 in a cross-section that is substantially perpendicular to a longitudinal axis of the article 301 . In one example, there are between one to four rows of ventilation holes to provide ventilation for the article 301.
  • Each row of ventilation holes may have between 12 to 36 ventilation holes 317.
  • the ventilation holes 317 may, for example, be between 100 to 500pm in diameter.
  • an axial separation between rows of ventilation holes 317 is between 0.25mm and 0.75mm, suitably 0.5mm.
  • the ventilation holes 317 are of uniform size. In another example, the ventilation holes 317 vary in size.
  • the ventilation holes can be made using any suitable technique, for example, one or more of the following techniques: laser technology, mechanical perforation of the cooling segment 307 or preperforation of the cooling segment 307 before it is formed into the article 301 .
  • the ventilation holes 317 are positioned so as to provide effective cooling to the article 301.
  • the rows of ventilation holes 317 are located at least 11 mm from the proximal end 313 of the article, suitably between 17mm and 20mm from the proximal end 313 of the article 301.
  • the location of the ventilation holes 317 is positioned such that user does not block the ventilation holes 317 when the article 301 is in use.
  • Providing the rows of ventilation holes between 17mm and 20mm from the proximal end 313 of the article 301 enables the ventilation holes 317 to be located outside of the device 1 , when the article 301 is fully inserted in the device 1 , as can be seen in Figures 6 and 7.
  • By locating the ventilation holes outside of the device non-heated air is able to enter the article 301 through the ventilation holes from outside the device 1 to aid with the cooling of the article 301 .
  • the length of the cooling segment 307 is such that the cooling segment 307 will be partially inserted into the device 1 , when the article 301 is fully inserted into the device 1.
  • the length of the cooling segment 307 provides a first function of providing a physical gap between the heater arrangement of the device 1 and the heat sensitive filter arrangement 309, and a second function of enabling the ventilation holes 317 to be located in the cooling segment, whilst also being located outside of the device 1 , when the article 301 is fully inserted into the device 1.
  • the majority of the cooling element 307 is located within the device 1. However, there is a portion of the cooling element 307 that extends out of the device 1. It is in this portion of the cooling element 307 that extends out of the device 1 in which the ventilation holes 317 are located.
  • FIG. 5 to 7 there is shown an example of a device 1 arranged to heat aerosol-generating composition to volatilise at least one component of said aerosol-generating composition, typically to form an aerosol which can be inhaled.
  • the device 1 is a heating device which releases compounds by heating, but not burning, the aerosol-generating composition.
  • a first end 3 is sometimes referred to herein as the mouth or proximal end 3 of the device 1 and a second end 5 is sometimes referred to herein as the distal end 5 of the device 1 .
  • the device 1 has an on/off button 7 to allow the device 1 as a whole to be switched on and off as desired by a user.
  • the device 1 comprises a housing 9 for locating and protecting various internal components of the device 1.
  • the housing 9 comprises a uni-body sleeve 11 that encompasses the perimeter of the device 1 , capped with a top panel 17 which defines generally the ‘top’ of the device 1 and a bottom panel 19 which defines generally the ‘bottom’ of the device 1.
  • the housing comprises a front panel, a rear panel and a pair of opposite side panels in addition to the top panel 17 and the bottom panel 19.
  • the top panel 17 and/or the bottom panel 19 may be removably fixed to the uni-body sleeve 11 , to permit easy access to the interior of the device 1 , or may be “permanently” fixed to the uni-body sleeve 11 , for example to deter a user from accessing the interior of the device 1.
  • the panels 17 and 19 are made of a plastics material, including for example glass-filled nylon formed by injection moulding, and the uni-body sleeve 11 is made of aluminium, though other materials and other manufacturing processes may be used.
  • the top panel 17 of the device 1 has an opening 20 at the mouth end 3 of the device 1 through which, in use, the article 101 , 301 including the aerosol-generating composition may be inserted into the device 1 and removed from the device 1 by a user.
  • the housing 9 has located or fixed therein a heater arrangement 23, control circuitry 25 and a power source 27.
  • the heater arrangement 23, the control circuitry 25 and the power source 27 are laterally adjacent (that is, adjacent when viewed from an end), with the control circuitry 25 being located generally between the heater arrangement 23 and the power source 27, though other locations are possible.
  • the control circuitry 25 may include a controller, such as a microprocessor arrangement, configured and arranged to control the heating of the aerosolgenerating composition in the article 101 , 301 as discussed further below.
  • a controller such as a microprocessor arrangement
  • the power source 27 may be for example a battery, which may be a rechargeable battery or a non-rechargeable battery.
  • suitable batteries include for example a lithium-ion battery, a nickel battery (such as a nickel-cadmium battery), an alkaline battery and/ or the like.
  • the battery 27 is electrically coupled to the heater arrangement 23 to supply electrical power when required and under control of the control circuitry 25 to heat the aerosol-generating composition in the article (as discussed, to volatilise the aerosol-generating material without causing the aerosol-generating composition to burn).
  • An advantage of locating the power source 27 laterally adjacent to the heater arrangement 23 is that a physically large power source 25 may be used without causing the device 1 as a whole to be unduly lengthy.
  • a physically large power source 25 has a higher capacity (that is, the total electrical energy that can be supplied, often measured in Amp-hours or the like) and thus the battery life for the device 1 can be longer.
  • the heater arrangement 23 is generally in the form of a hollow cylindrical tube, having a hollow interior heating chamber 29 into which the article 101 , 301 comprising the aerosol-generating material is inserted for heating in use.
  • the heater arrangement 23 may comprise a single heating element or may be formed of plural heating elements aligned along the longitudinal axis of the heater arrangement 23.
  • the or each heating element may be annular or tubular, or at least part-annular or part-tubular around its circumference.
  • the or each heating element may be a thin film heater.
  • the or each heating element may be made of a ceramics material.
  • suitable ceramics materials include alumina and aluminium nitride and silicon nitride ceramics, which may be laminated and sintered.
  • Other heating arrangements are possible, including for example inductive heating, infrared heater elements, which heat by emitting infrared radiation, or resistive heating elements formed by for example a resistive electrical winding.
  • the heater arrangement 23 is supported by a stainless steel support tube and comprises a polyimide heating element.
  • the heater arrangement 23 is dimensioned so that substantially the whole of the body of aerosolgenerating composition 103, 303 of the article 101 , 301 is inserted into the heater arrangement 23 when the article 101 , 301 is inserted into the device 1.
  • the or each heating element may be arranged so that selected zones of the aerosol-generating material can be independently heated, for example in turn (over time, as discussed above) or together (simultaneously) as desired.
  • the heater arrangement 23 in this example is surrounded along at least part of its length by a thermal insulator 31.
  • the insulator 31 helps to reduce heat passing from the heater arrangement 23 to the exterior of the device 1 . This helps to keep down the power requirements for the heater arrangement 23 as it reduces heat losses generally.
  • the insulator 31 also helps to keep the exterior of the device 1 cool during operation of the heater arrangement 23.
  • the insulator 31 may be a double-walled sleeve which provides a low pressure region between the two walls of the sleeve. That is, the insulator 31 may be for example a “vacuum” tube, i.e. a tube that has been at least partially evacuated so as to minimise heat transfer by conduction and/or convection.
  • Other arrangements for the insulator 31 are possible, including using heat insulating materials, including for example a suitable foam-type material, in addition to or instead of a double-walled sleeve.
  • the housing 9 may further comprises various internal support structures 37 for supporting all internal components, as well as the heating arrangement 23.
  • the device 1 further comprises a collar 33 which extends around and projects from the opening 20 into the interior of the housing 9 and a generally tubular chamber 35 which is located between the collar 33 and one end of the vacuum sleeve 31 .
  • the chamber 35 further comprises a cooling structure 35f, which in this example, comprises a plurality of cooling fins 35f spaced apart along the outer surface of the chamber 35, and each arranged circumferentially around outer surface of the chamber 35.
  • the air gap 36 is around all of the circumference of the article 101 , 301 over at least part of the cooling segment 307.
  • the collar 33 comprises a plurality of ridges 60 arranged circumferentially around the periphery of the opening 20 and which project into the opening 20.
  • the ridges 60 take up space within the opening 20 such that the open span of the opening 20 at the locations of the ridges 60 is less than the open span of the opening 20 at the locations without the ridges 60.
  • the ridges 60 are configured to engage with an article 101 , 301 inserted into the device to assist in securing it within the device 1.
  • Open spaces (not shown in the Figures) defined by adjacent pairs of ridges 60 and the article 101 , 301 form ventilation paths around the exterior of the article 101 , 301. These ventilation paths allow hot vapours that have escaped from the article 101 , 301 to exit the device 1 and allow cooling air to flow into the device 1 around the article 101 , 301 in the air gap 36.
  • the article 101 , 301 is removably inserted into an insertion point 20 of the device 1 , as shown in Figures 5 to 7.
  • the body of aerosol-generating composition 103, 303 which is located towards the distal end 115, 315 of the article 101 , 301 , is entirely received within the heater arrangement 23 of the device 1.
  • the proximal end 113, 313 of the article 101 , 301 extends from the device 1 and acts as a mouthpiece assembly for a user.
  • the heater arrangement 23 will heat the article 101 , 301 to volatilise at least one component of the aerosol-generating composition from the body of aerosol-generating composition 103, 303.
  • the primary flow path for the heated volatilised components from the body of aerosol-generating composition 103, 303 is axially through the article 101 , 301 , through the chamber inside the cooling segment 107, 307, through the filter segment 109, 309, through the mouth end segment 111 , 313 to the user.
  • the temperature of the heated volatilised components that are generated from the body of aerosol-generating composition is between 60°C and 250°C, which may be above the acceptable inhalation temperature fora user. As the heated volatilised component travels through the cooling segment 107, 307, it will cool and some volatilised components will condense on the inner surface of the cooling segment 107, 307.
  • cool air will be able to enter the cooling segment 307 via the ventilation holes 317 formed in the cooling segment 307. This cool air will mix with the heated volatilised components to provide additional cooling to the heated volatilised components.
  • Another aspect of the invention provides a method of making an aerosolgenerating material in the form of non-linear strands, such as the aerosolgenerating material described herein.
  • the method may comprise:
  • a solvent e.g. an aerosol-generating agent, a crosslinkable binder, optionally a filler and optionally an active and/or flavourant and/or an acid
  • the method may comprise:
  • Step (a) comprises forming a mixture or slurry comprising components of the aerosol-generating material or precursors thereof and a solvent (typically water).
  • the slurry or mixture formed in step (a) therefore comprises a crosslinkable binder (i.e. a precursor to the crosslinked binder which is present in the material of the invention), an aerosol-generating agent, and optionally a filler, an active and/or a flavour and/or an acid.
  • the crosslinkable binder may comprise pectin, iota-carrageenan, and/or gellan gum.
  • the mixture or slurry may comprise these components on a dry weight basis in any of the proportions given herein in relation to the composition of the aerosol-generating material.
  • Step (b) comprises ejecting the mixture through a nozzle.
  • the shape of the nozzle may determine the cross-section of the material which is formed by the method of the invention.
  • the nozzle has a circular shape.
  • the cross-section of the final material will be circular or substantially circular.
  • the term “nozzle” may be used interchangeably with terms “orifice” or “aperture”.
  • the nozzle has a diameter of from about 0.05 mm, 0.2 mm, 0.5 mm, 1.5 mm or 1.5 mm to about 4 mm, 3.0 mm, 2.5 mm or 1.5 mm. In some embodiments, the nozzle has a diameter of from about 0.05 to about 4 mm, from about 0.5 to about 4 mm, from about 1.0 to about 3.0 mm, or from about 1.5 to about 2.5 mm.
  • the nozzle has a diameter of from about 0.05 mm, 0.1 mm, 0.2 mm or 0.3mm to about 3.0 mm, 2.0 mm, 1.0 mm, or 0.7mm. In some embodiments, the nozzle has a diameter of from about 0.05 to about 3.0 mm, from about 0.1 to about 2.0 mm, from about 0.2 to about 2.0 mm, or from about 0.3 to about 0.7 mm.
  • the term “eject” is also intended to encompass the terms “extrude” and “dispense”.
  • step (b) comprises dispensing the mixture through a nozzle. In another embodiment, step (b) comprises extruding the mixture through a nozzle.
  • the mixture After the mixture is ejected from the nozzle, it has a velocity. This velocity may be imparted by gravity, i.e. because the mixture is ejected from the nozzle into a medium in which it can fall (e.g. air). Alternatively and/or additionally, the velocity may be imparted by the ejection process, i.e. because the mixture is forced through the nozzle and kinetic energy is imparted to the mixture.
  • the mixture is generally ejected in the form of a continuous stream or flow of material.
  • the mixture is ejected from the nozzle into a gaseous medium, such as air.
  • the mixture may be contacted with the botanical extract by ejecting the mixture into a medium such as air directly above the botanical extract or a solution comprising the botanical extract, with gravity (optionally together with any force applied to eject the mixture from the nozzle) acting to bring the mixture into contact with the extract or solution.
  • a medium such as air directly above the botanical extract or a solution comprising the botanical extract
  • the mixture may be contacted with the botanical extract or the solution comprising the botanical extract by ejecting the mixture with force.
  • the nozzle may be positioned directly above the extract or solution, but may also and/or alternatively be positioned to the side of the extract or solution, or even below the extract or solution.
  • the angle between the direction of the nozzle (i.e. the direction in which the mixture is initially ejected) and the surface of the solution may be changed. When the nozzle is positioned directly above the solution this angle is 90°. When the nozzle is directly to the side of the solution (i.e. parallel to the solution) this angle is 0°. In one embodiment, this angle is 90°. In another embodiment, this angle is less than about 90° and greater than about 0°.
  • this angle is from about 10° to about 85°, from about 20° to about 80°, or from about 30° to about 75°.
  • the nozzle is positioned directly above the surface of the botanical extract or the solution comprising a botanical extract. However, this may not be necessary if the mixture is forced from the nozzle such that it does not move directly downwards after ejection.
  • the nozzle is positioned at a distance of from about 0.5 to about 100 cm above the surface of the botanical extract or solution comprising a botanical extract, such as from about 1 to about 50 cm or from about 2 to about 20 cm. If the distance between the nozzle and the surface of the solution is increased, the diameter of the resulting non-linear strands may decrease. Positioning the nozzle at a distance from the surface of the solution beyond the ranges disclosed herein may therefore result in the diameter of the non-linear strand being significantly reduced compared to the diameter of the nozzle.
  • the quantity of extract or solution and the vessel used to hold the botanical extract or the solution comprising a botanical extract are selected such that the depth of extract or solution at the point of impact is at least about 1 cm, 2 cm, 3 cm or 5 cm, and may be less than about 50 cm, 30 cm, 20 cm or 10 cm, In some embodiments, the depth of extract or solution at the point of impact is from about 1 to about 50 cm, from about 2 to about 30 cm, or from about 3 to about 10 cm.
  • the nozzle may be stationary, or may move as the mixture is ejected.
  • the nozzle may move over the surface of the botanical extract or the solution comprising the botanical extract as the mixture is ejected.
  • the nozzle may be stationary and the botanical extract or the solution comprising the botanical extract may be moved as the mixture is ejected. Having at least one of the nozzle and/or the extract or solution moving during the process may be useful where the overall process is continuous, and this may help to prevent overlapping of individual strands.
  • the nozzle may eject the mixture in a series of pulses.
  • step (c) may comprise pausing the ejection of the mixture from the nozzle at selected time intervals. This method may avoid or reduce the need to cut the strands.
  • the length of the strands may be determined by the length of the time intervals. Generally, the longer the time interval the longer the strands.
  • Step (c) comprises contacting the ejected mixture with a botanical extract or a solution comprising a botanical extract, where the velocity of the mixture is reduced on contact with the extract or solution.
  • the crosslinkable binder will crosslink, thereby forming the cross-linked binder.
  • the binder immediately crosslinks. This, combined with the reduction in velocity resulting from the impact of the mixture with the solution, is believed to result in the formation of the non-linear strands or gel fibers of the invention.
  • the result of step (c) is an aerosol-generating material in the form of non-linear strands or gel fibers, i.e. an aerosol-generating material as defined herein.
  • This crosslinking occurs because the botanical extract contains metal (e.g. calcium) ions which cause crosslinking of the crosslinkable binder.
  • the botanical extract or the solution comprising a botanical extract is provided in a vessel into which the ejected mixture falls and/or is forced.
  • the extract or solution is sprayed or otherwise applied onto the mixture after it is ejected and whilst it is moving with a velocity, with the contact between the ejected mixture and the extract or solution resulting in the desired reduction in the velocity of the ejected mixture.
  • the botanical extract is generally used in the present methods in the form of a solution comprising the botanical extract.
  • the solution is an aqueous solution comprising water and the botanical extract.
  • the solution is a solution comprising water, alcohol (e.g. ethanol) and the botanical extract.
  • the botanical extract is present in the solution in an excess amount, such that botanical extract remains after the binder is crosslinked.
  • the concentration of botanical extract in the solution may range from about 20 wt.% to about 100 wt.%, from about 25 wt.% to about 75 wt.%, or from about
  • the slurry may comprise sodium, potassium or ammonium alginate as a precursor to the binder, and a botanical extract comprising calcium may be used to form a calcium alginate gel or binder.
  • the solution further comprises a cross-linking agent in addition to the botanical extract.
  • a cross-linking agent in addition to the botanical extract.
  • the crosslinking agent may comprise a calcium source (such as calcium formate, calcium acetate or calcium lactate).
  • the addition of the crosslinking agent can help to form the desired crosslinked binder.
  • the crosslinking agent may not be necessary, in some embodiments it may be desirable to include a crosslinking agent to increase the amount of metal (e.g. calcium) ions available for crosslinking the binder, thereby ensuring that the binder is crosslinked to the desired extent. Since botanical extracts are natural products the amount of metal (e.g. calcium) ions present in the extracts can vary from batch to batch.
  • the concentration of metal ions in the solution may range from about 0.02 M to about 2.0 M, from about 0.04 M to about 1.0 M, or from about 0.05 M to about 0.07 M.
  • Alginate salts are derivatives of alginic acid and are typically high molecular weight polymers (10-600 kDa).
  • Alginic acid is a copolymer of p-D-mannuronic (M) and a-L-guluronic acid (G) units (blocks) linked together with (1 ,4)-glycosidic bonds to form a polysaccharide.
  • M p-D-mannuronic
  • G a-L-guluronic acid
  • the alginate crosslinks to form a gel.
  • Alginate salts with a high G monomer content more readily form a gel on addition of the calcium source.
  • the gel-precursor may comprise an alginate salt in which at least about 40%, 45%, 50%, 55%, 60% or 70% of the monomer units in the alginate copolymer are a-L-guluronic acid (G) units.
  • the botanical extract can enter the non-linear strands or gel fibers of the invention.
  • the result of step (c) is an aerosol-generating material in the form of non-linear strands or gel fibers comprising the botanical extract.
  • the flavourant is water-soluble.
  • the amount of botanical extract in the resulting non-linear strands varies depending on how long the material is in contact with the botanical extract or the solution comprising the botanical extract. Generally, the longer the contact time between the material and the botanical extract or the solution comprising the botanical extract, the greater the amount of botanical extract in the resulting nonlinear strands. Thus, the amount of botanical extract in the non-linear strands can be controlled by the contact time between the material and the botanical extract or the solution comprising the botanical extract. In some embodiments, the contact time between the material and the solution may be less than about 120 seconds. In one embodiment, the contact time between the material and the botanical extract or the solution comprising the botanical extract may range from about 5 seconds to about 120 seconds, from about 10 seconds to about 60 seconds, or from about 10 seconds to about 30 seconds.
  • Adding the botanical extract to the mixture in step (a) may result in early crosslinking of the crosslinkable binder, due to the metal (e.g. calcium) ion content of the botanical extract. This may result in undesired crosslinking of the mixture or slurry during step (a) before it is ejected through the nozzle and contacts the solution in steps (b) and (c). This may prevent the slurry from being ejected through the nozzle and therefore prevent the formation of non-linear strands.
  • the metal e.g. calcium
  • step (a) It is therefore advantageous to form a slurry which does not comprise a botanical extract in step (a), and eject said slurry into a botanical extract or a solution comprising a botanical extract. This method also reduces the amount of crosslinkable binder required in the solution.
  • the solution in step (c) further comprises another component of the aerosol-generating material, which may then diffuse into the aerosol-generating material in the same way as the botanical extract.
  • the solution may further comprise a flavourant, such as a water-soluble flavourant, and/or active in addition to the botanical extract and/or an aerosol generating agent (e.g. glycerol).
  • a component of the aerosolgenerating material e.g. an aerosol generating agent
  • the concentration of the aerosol-generating agent in the solution is substantially the same or the same as the concentration of the aerosolgenerating agent in the mixture.
  • the concentration of aerosol-generating agent in the final aerosol-generating material will be the same or substantively the same as that in the mixture.
  • the concentration of aerosol-generating agent in the solution is lower than that in the mixture, the concentration of aerosol-generating agent in the final aerosol-generating material will be lower than that in the mixture, due to diffusion of the aerosol-generating agent from the material while in contact with the solution.
  • the concentration of aerosol-generating agent in the solution is higher that in the mixture, the concentration of aerosol-generating agent in the final aerosolgenerating material will be higher than that in the mixture.
  • an aerosol-generating agent is included in the solution.
  • the same aerosol-generating agent is included in the solution as in the mixture.
  • the solution comprises from about 1 wt%, 3wt%, 5wt%, 10wt%, 15wt%, or 20wt% to about 80wt%, 60wt%, 50wt%, 40 wt% or 30 wt% of aerosol-generating agent.
  • the solution comprises 10-45wt%, 20-40wt% or 30-40wt% of aerosol-generating agent.
  • the aerosol-generating material comprises 10-45wt%, 10-40wt% or 15-30wt% of aerosol-generating agent.
  • the solution comprises an amount of aerosolgenerating agent which is within about 15 wt% of the amount of aerosol-generating agent in the mixture, such as within about 10 wt%, within about 5 wt% or within about 1 wt%.
  • the solution comprises water and/or ethanol.
  • the solution comprises a botanical extract (e.g. tobacco extract), a crosslinking agent (e.g. calcium formate), an aerosol generating agent (e.g. glycerol), and a solvent (e.g. water, optionally in combination with ethanol).
  • a botanical extract e.g. tobacco extract
  • a crosslinking agent e.g. calcium formate
  • an aerosol generating agent e.g. glycerol
  • a solvent e.g. water, optionally in combination with ethanol.
  • the solution comprises 5-97.9 wt% of a botanical extract (e.g. tobacco extract), 0.1-5 wt% of a crosslinking agent (e.g. calcium formate), 1-50 wt% of an aerosol generating agent (e.g. glycerol), and 1-80 wt% of a solvent (e.g. water, optionally in combination with ethanol).
  • a botanical extract e.g. tobacco extract
  • a crosslinking agent e.g. calcium formate
  • an aerosol generating agent e.g. glycerol
  • a solvent e.g. water, optionally in combination with ethanol
  • the solution comprises 5-96.9 wt% tobacco extract, 0.1-5 wt% calcium formate, 1-50 wt% glycerol, 1-30 wt% ethanol and 1-80 wt% water.
  • the method of the invention may further comprise:
  • step (d) separating the material formed in step (c) (e.g. the cross-linked material, which is in the form of non-linear strands) from the botanical extract or the solution comprising the botanical extract; and
  • Step (d) of separating the material from the botanical extract or the solution comprising the botanical extract may comprise manually removing the material from the solution, e.g. through filtration or sieving.
  • the process described hereby may be continuous or batch process, but is generally a continuous process.
  • the drying step (e) may comprise any suitable drying methods, including but not limited to, infrared (IR) heating, convention heating, air impingement, conductive heating and microwave heating.
  • Conductive heating may comprise heating a surface on which the material is placed.
  • the surface may be, for example, a metal or metal alloy (e.g. stainless steel) band.
  • the surface may itself heat up (e.g. it is the surface of a heater) or be indirectly heated.
  • the surface may be heated from below, for example using steam.
  • the drying step (e) is performed using a belt dryer.
  • the drying step (e) may, in some cases, remove from about 50wt%, 60wt%, 70wt%, 80wt% or 90wt% to about 80wt%, 90wt% or 95wt% (WWB) of water in the slurry.
  • Drying may be performed at suitable temperature, for example from room temperature (25 °C) to about 200 °C, such as from about 50 °C to about 150 °C or from about 100 °C to about 130 °C. As the skilled person would appreciate, higher temperatures may allow for faster drying times, but can be more energy intensive.
  • the material is dried for from about 30 seconds to about 10 minutes, such as from about 1 minute to about 5 minutes, such as from about 2 minutes to about 4 minutes. In some embodiments the material is dried forfrom about 1 hours to about 5 hours, such as from about 2 hours to about 4 hours.
  • the drying step (e) may, in some cases, reduce the average diameter of each of the strands by at least about 20%, such as between about 20% and about 90 %, or between about 30% and about 70%.
  • the material may be heated to remove at least about 60 wt%, 70 wt%, 80 wt%, 85 wt% or 90 wt% of the solvent, which is typically water.
  • the aerosol-generating material may have a water content as defined above.
  • the aerosol-generating material may have of from 1wt % to 15wt% (WWB).
  • the water content of the aerosol-generating material may be from about 5wt%, 7wt% or 9wt% to about 15wt%, 13wt%, 11wt%, 9 wt% or 8 wt% (wet weight basis) (WWB).
  • the aerosolgenerating material has a water content of less than about 9 wt% (WWB), such as less than about 8 wt% (WWB).
  • the water content of the aerosol-generating material may, for example, be determined by Karl-Fischer-titration or Gas Chromatography with Thermal Conductivity Detector (GC-TCD).
  • GC-TCD Gas Chromatography with Thermal Conductivity Detector
  • the solvent which is part of the slurry or mixture may consist essentially of or consist of water.
  • the slurry or mixture may comprise from about 50wt%, 60wt%, 70wt%, 80wt% or 90wt% of solvent (WWB).
  • the dry weight content of the slurry may match the dry weight content of the aerosol-generating material.
  • the discussion herein relating to the solid material is explicitly disclosed in combination with the slurry aspect of the invention.
  • aspects and embodiments above defining components of the aerosol-generating material and amounts thereof apply mutatis mutandis to the slurry of the invention and the method of the invention.
  • the method of the invention may also comprise cutting the non-linear strands to a desired free length. This step may occur before or after drying.
  • the desired free length may be as set out hereinabove.
  • the material is cut into a plurality of non-linear strands before drying step (e). Cutting the material into a plurality of non-linear strands (each shorter than the non-linear strand(s) initially formed) before drying the material can reduce tangling of the material, which can in turn make the material easier to process and/or incorporate into an article. Reducing tangling of the material may also make it easier to form a homogeneous mixture if the material is blended with tobacco.
  • the non-linear strands may be arranged to form a net or mesh-like structure. In some embodiments, the non-linear strands may be joined or woven together to form sheets of aerosol-generating material. Such structures may be formed by arranging the strands into the shape of a net or mesh (e.g. a grid formation) before, during and/or after drying.
  • a net or mesh e.g. a grid formation
  • the invention also provides an aerosol-generating material obtainable by, or obtained by a method of the invention. Aspects and embodiments above defining components of the aerosol-generating material and amounts thereof apply mutatis mutandis to this further aspect of the invention.
  • a method of generating an aerosol using a non-combustible aerosol provision system as described herein.
  • the method comprises heating the aerosolgenerating material (or the aerosol-generating composition) to a temperature of less than or equal to 350 °C.
  • the method comprises heating the aerosol-generating material (or the aerosol-generating composition) to a temperature of from about 220 °C to about 280 °C.
  • the method comprises heating at least a portion of the aerosol-generating material (or the aerosolgenerating composition) to a temperature of from about 220 °C to about 280 °C over a session of use.
  • “Session of use” as used herein refers to a single period of use of the noncombustible aerosol provision system by a user.
  • the session of use begins at the point at which power is first supplied to at least one heating unit present in the heating assembly.
  • the device will be ready for use after a period of time has elapsed from the start of the session of use.
  • the session of use ends at the point at which no power is supplied to any of the heating elements in the aerosol-generating device.
  • the end of the session of use may coincide with the point at which the smoking article is depleted (the point at which the total particulate matter yield (mg) in each puff would be deemed unacceptably low by a user).
  • the session will have a duration of a plurality of puffs.
  • Said session may have a duration less than 7 minutes, or 6 minutes, or 5 minutes, or 4 minutes and 30 seconds, or 4 minutes, or 3 minutes and 30 seconds.
  • the session of use may have a duration of from 2 to 5 minutes, or from 3 to 4.5 minutes, or 3.5 to 4.5 minutes, or suitably 4 minutes.
  • a session may be initiated by the user actuating a button or switch on the device, causing at least one heating element to begin rising in temperature.
  • Embodiment 1 An aerosol-generating material in the form of one or more nonlinear strands, wherein the aerosol-generating material comprises: an aerosol-generating agent; a botanical extract; and a crosslinked binder.
  • Embodiment 1a An aerosol-generating material in the form of one or more nonlinear strands, wherein the aerosol-generating material comprises: an aerosol-generating agent; a botanical extract; and a binder selected from the group consisting of alginate, pectin, carrageenan (such as iota-carrageenan), gellan gum (such as high acyl gellan gum), and combinations thereof.
  • a binder selected from the group consisting of alginate, pectin, carrageenan (such as iota-carrageenan), gellan gum (such as high acyl gellan gum), and combinations thereof.
  • Embodiment 1a The aerosol-generating material of any preceding embodiment, wherein the botanical extract contains calcium or magnesium ions, preferably calcium ions.
  • Embodiment 1b The aerosol-generating material of any preceding embodiment, wherein the botanical extract comprises a tobacco extract.
  • Embodiment 1c The aerosol-generating material of any preceding embodiment, wherein the botanical extract is a tobacco extract.
  • Embodiment 2. The aerosol-generating material of any preceding embodiment, wherein each of the non-linear strands has a diameter of from about 0.05 mm to about 3 mm.
  • Embodiment 3 The aerosol-generating material of any preceding embodiment, wherein each of the non-linear strands has a diameter of from about 0.1 mm to about 2 mm.
  • Embodiment 4 The aerosol-generating material of any preceding embodiment, wherein each of the non-linear strands has a diameter of from about 0.1 to about 1.0 mm.
  • Embodiment 5 The aerosol-generating material of any preceding embodiment, wherein each of the non-linear strands has a diameter of from about 0.2 to about 0.4 mm.
  • Embodiment 6 The aerosol-generating material of any preceding embodiment, wherein each of the non-linear strands has a thickness of from about 0.05 mm to about 3 mm.
  • Embodiment 7 The aerosol-generating material of any preceding embodiment, wherein each of the non-linear strands has a thickness of from about 0.1 mm to about 2.0 mm.
  • Embodiment 8 The aerosol-generating material of any preceding embodiment, wherein each of the non-linear strands has a thickness of from about 0.1 to about 1.0 mm.
  • Embodiment 9 The aerosol-generating material of any preceding embodiment, wherein each of the non-linear strands has a thickness of from about 0.2 to about 0.4 mm.
  • Embodiment 10 The aerosol-generating material of any preceding embodiment, wherein the ratio of the diameter to the thickness of each of the nonlinear strands is from about 1 :2 to about 2:1.
  • Embodiment 11 The aerosol-generating material of any preceding embodiment, wherein the ratio of the diameter to the thickness of each of the nonlinear strands is from about 3:2 to about 2:3.
  • Embodiment 12 The aerosol-generating material of any preceding embodiment, wherein the ratio of the diameter to the thickness of each of the nonlinear strands is about 1:1.
  • Embodiment 13 The aerosol-generating material of any preceding embodiment, wherein each of the non-linear strands has an uncoiled length of from about 8 mm to about 200 mm.
  • Embodiment 13a The aerosol-generating material of any preceding embodiment, wherein each of the non-linear strands has an uncoiled length of from about 10 mm to about 200 mm.
  • Embodiment 14 The aerosol-generating material of any preceding embodiment, wherein each of the non-linear strands has an uncoiled length of from about 20 mm to about 100 mm.
  • Embodiment 15 The aerosol-generating material of any preceding embodiment, wherein each of the non-linear strands has an uncoiled length of from about 30 mm to about 50 mm.
  • Embodiment 16 The aerosol-generating material of any preceding embodiment, wherein each of the non-linear strands has a coiled length of from about
  • Embodiment 17 The aerosol-generating material of any preceding embodiment, wherein each of the non-linear strands has a coiled length of from about
  • Embodiment 18 The aerosol-generating material of any preceding embodiment, wherein each of the non-linear strands has a coiled length of from about 6 mm to about 23 mm.
  • Embodiment 19 The aerosol-generating material of any preceding embodiment, wherein each of the non-linear strands has a coiled length of from about 8 mm to about 22 mm.
  • Embodiment 20 The aerosol-generating material of any preceding embodiment, wherein each of the non-linear strands has a coiled length of from about 11 mm to about 20 mm.
  • Embodiment 21 The aerosol-generating material of any preceding embodiment, wherein the uncoiled length is greater than the coiled length.
  • Embodiment 22 The aerosol-generating material of any preceding embodiment, wherein the ratio between the uncoiled length and the coiled length of each non-linear strand is at least about 1.2.
  • Embodiment 23 The aerosol-generating material of any preceding embodiment, wherein the ratio between the uncoiled length and the coiled length of each non-linear strand is at least about 1 .3.
  • Embodiment 24 The aerosol-generating material of any preceding embodiment, wherein the ratio between the uncoiled length and the coiled length of each non-linear strand is at least about 1 .5.
  • Embodiment 25 The aerosol-generating material of any preceding embodiment, wherein the ratio between the uncoiled length and the coiled length of each non-linear strand is at least about 2.0.
  • Embodiment 25 The aerosol-generating material of any preceding embodiment, wherein the ratio between the uncoiled length and the coiled length of each non-linear strand is less than about 10.
  • Embodiment 26 The aerosol-generating material of any preceding embodiment, wherein the ratio between the uncoiled length and the coiled length of each non-linear strand is less than about 8.
  • Embodiment 27 The aerosol-generating material of any preceding embodiment, wherein the ratio between the uncoiled length and the coiled length of each non-linear strand is less than about 6.
  • Embodiment 28 The aerosol-generating material of any preceding embodiment, wherein the ratio between the uncoiled length and the coiled length of each non-linear strand is from about 1.2 to about 10.
  • Embodiment 29 The aerosol-generating material of any preceding embodiment, wherein the ratio between the uncoiled length and the coiled length of each non-linear strand is from about 1.5 to about 5.
  • Embodiment 30 The aerosol-generating material of any preceding embodiment, wherein the ratio between the uncoiled length and the coiled length of each non-linear strand is from about 2 to about 5.
  • Embodiment 31 The aerosol-generating material of any preceding embodiment, wherein the ratio between the uncoiled length and the diameter of each of the non-linear strands is from about 5 to about 200.
  • Embodiment 32 The aerosol-generating material of any preceding embodiment, wherein the ratio between the uncoiled length and the diameter of each of the non-linear strands is from about 10 to about 100.
  • Embodiment 33 The aerosol-generating material of any preceding embodiment, wherein the ratio between the uncoiled length and the diameter of each of the non-linear strands is from about 20 to about 50.
  • Embodiment 34 The aerosol-generating material of any preceding embodiment, wherein the tensile strength of each strand ranges from about 0.1 N to about 3.0 N.
  • Embodiment 35 The aerosol-generating material of any preceding embodiment, wherein the tensile strength of each strand ranges from about 0.2 N to about 2.0 N.
  • Embodiment 36 The aerosol-generating material of any preceding embodiment, wherein the tensile strength of each strand ranges from about 0.3 N to about 1.0 N.
  • Embodiment 37 The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating material has a fill value of from about 1 cm 3 /g to about 7.5 cm 3 /g.
  • Embodiment 36 The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating material has a fill value of from about
  • Embodiment 36 The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating material has a fill value of from about 2 cm 3 /g to about 6 cm 3 /g.
  • Embodiment 37 The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating material has a fill value of from about
  • Embodiment 37a The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating material has a fill value of from about 3 cm 3 /g to about 10 cm 3 /g.
  • Embodiment 37b The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating material has a fill value of from about 4 cm 3 /g to about 9.5 cm 3 /g.
  • Embodiment 37c The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating material has a fill value of from about
  • Embodiment 37d The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating material has a fill value of from about 5 cm 3 /g to about 9 cm 3 /g.
  • Embodiment 38. The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating material comprises from about 1 to about 80 wt% aerosol-generating agent.
  • Embodiment 39 The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating material comprises from about 5 to about 60 wt% aerosol-generating agent.
  • Embodiment 40 The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating material comprises from about 10 to about 50 wt% aerosol-generating agent.
  • Embodiment 41 The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating material comprises from about 10 to about 45 wt% aerosol-generating agent.
  • Embodiment 42 The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating material comprises from about 20 to about 40 wt% aerosol-generating agent.
  • Embodiment 43 The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating material comprises from about 30 to about 40 wt% aerosol-generating agent.
  • Embodiment 43a The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating material comprises from about 10 to about 40 wt% aerosol-generating agent.
  • Embodiment 43b The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating material comprises from about 15 to about 30 wt% aerosol-generating agent.
  • Embodiment 44 The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating agent comprises one or more of glycerol, propylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol,
  • Embodiment 45 The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating agent comprises glycerol.
  • Embodiment 45a The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating material comprises from about 1 to 70 wt% botanical extract.
  • Embodiment 45b The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating material comprises from about 10 to 70 wt% botanical extract.
  • Embodiment 45c The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating material comprises from about 20 to 65 wt% botanical extract.
  • Embodiment 45d The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating material comprises from about 40 to 60 wt% botanical extract.
  • Embodiment 45e The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating material comprises from about 1 to 10 wt% nicotine.
  • Embodiment 45f The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating material comprises from about 2.5 to 8 wt% nicotine.
  • Embodiment 45g The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating material comprises from about 2 to 6 wt% nicotine.
  • Embodiment 46 The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating material comprises from about 1 to about 60 wt% binder.
  • Embodiment 47 The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating material comprises from about 5 to about 50 wt% binder.
  • Embodiment 48 The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating material comprises from about 6 to about 40 wt% binder.
  • Embodiment 49 The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating material comprises from about 7 to about 30 wt% binder.
  • Embodiment 49a The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating material comprises from about 15 to about 25 wt% binder.
  • Embodiment 50 The aerosol-generating material of any preceding embodiment, wherein the binder comprises crosslinked alginate and/or pectin and/or carrageenan.
  • Embodiment 51 The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating material is substantially free of cellulosic binder.
  • Embodiment 52 The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating material is substantially free of carboxymethyl cellulose.
  • Embodiment 52a The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating material comprises a crosslinked binder and a non-crosslinked binder.
  • Embodiment 52 The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating material comprises one or more fillers.
  • Embodiment 53 The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating material comprises from about 1 to about 60 wt% filler.
  • Embodiment 54 The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating material comprises from about 1 to about 50 wt% filler.
  • Embodiment 55 The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating material comprises from about 5 to about 45 wt% filler.
  • Embodiment 56 The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating material comprises from about 10 to about 40 wt% filler.
  • Embodiment 57 The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating material comprises from about 18 to about 35 wt% filler.
  • Embodiment 58 The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating material comprises from about 20 to about 30 wt% filler.
  • Embodiment 58a The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating material comprises from about 10 to about 80 wt% filler.
  • Embodiment 58b The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating material comprises from about 20 to about 70 wt% filler.
  • Embodiment 58c The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating material comprises from about 30 to about 65 wt% filler.
  • Embodiment 58d The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating material comprises from about 40 to about 65 wt% filler.
  • Embodiment 58a The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating material comprises from about 1 to about 70 wt% filler.
  • Embodiment 58b The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating material comprises from about 10 to about 65 wt% filler.
  • Embodiment 58c The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating material comprises from about 20 to about 60 wt% filler.
  • Embodiment 58d The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating material comprises from about 30 to about 60 wt% filler.
  • Embodiment 58e The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating material comprises from about 40 to about 60 wt% filler.
  • Embodiment 59 The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating material comprises less than about 60 wt% filler.
  • Embodiment 60 The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating material comprises less than about 50 wt% filler.
  • Embodiment 61 The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating material comprises less than about 30 wt% filler.
  • Embodiment 62 The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating material comprises less than about 20 wt% filler.
  • Embodiment 63 The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating material comprises less than about 10 wt% filler.
  • Embodiment 63a The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating material comprises less than about 10 wt% calcium carbonate.
  • Embodiment 63b The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating material comprises less than about 5 wt% calcium carbonate.
  • Embodiment 63c The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating material comprises less than about 1 wt% calcium carbonate.
  • Embodiment 63d The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating material comprises no calcium carbonate.
  • Embodiment 64 The aerosol-generating material of any preceding embodiment, wherein the filler is a fibrous organic filler material selected from wood pulp, hemp fibre, cellulose or cellulose derivatives, such as microcrystalline cellulose (MCC), nanocrystalline cellulose and/or ground cellulose.
  • the filler is a fibrous organic filler material selected from wood pulp, hemp fibre, cellulose or cellulose derivatives, such as microcrystalline cellulose (MCC), nanocrystalline cellulose and/or ground cellulose.
  • Embodiment 65 The aerosol-generating material of any preceding embodiment, wherein the filler comprises wood pulp, MCC and/or ground cellulose.
  • Embodiment 65a The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating material has a water content of less than about 9 wt%.
  • Embodiment 65b The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating material has a water content of less than about 8 wt%.
  • Embodiment 65c The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating material comprises from about 1-70 wt% particulate botanical material.
  • Embodiment 65d The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating material comprises from about 5-60 wt% particulate botanical material.
  • Embodiment 65e The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating material comprises from about 10-50 wt% particulate botanical material.
  • Embodiment 65f The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating material comprises from about 30-40 wt% particulate botanical material.
  • Embodiment 66 The aerosol-generating material of any preceding embodiment, wherein the aerosol-generating material is substantially free from tobacco.
  • Embodiment 67 An aerosol-generating composition comprising the aerosolgenerating material of any preceding embodiment.
  • Embodiment 67a The aerosol-generating composition of Embodiment 67, wherein the aerosol-generating material is shredded and mixed with tobacco.
  • Embodiment 67b The aerosol-generating composition of Embodiment 67 or 67a, wherein the aerosol-generating composition comprises from about 10-50 wt% aerosol-generating material and about 50-90 wt% tobacco.
  • Embodiment 67c The aerosol-generating composition of any of Embodiments 67-67b, wherein the aerosol-generating composition comprises about 20-40 wt% aerosol-generating material and about 60-80 wt% tobacco.
  • Embodiment 67d The aerosol-generating composition of any of Embodiments 67-67c comprising a mixture of the aerosol-generating material of the invention and dry ice expanded tobacco (DIET).
  • DIET dry ice expanded tobacco
  • Embodiment 67e The aerosol-generating composition of any of Embodiments 67-67d wherein the aerosol-generating composition has a fill value of from about 3 cm 3 /g to about 10 cm 3 /g.
  • Embodiment 67f The aerosol-generating composition of any of Embodiments 67-67e, wherein the aerosol-generating composition has a fill value of from about 4 cm 3 /g to about 9.5 cm 3 /g.
  • Embodiment 67g The aerosol-generating composition of any of Embodiments 67-67f, wherein the aerosol-generating composition has a fill value of from about 4.5 cm 3 /g to about 9 cm 3 /g.
  • Embodiment 67h The aerosol-generating composition of any of Embodiments 67-67g, wherein the aerosol-generating composition has a fill value of from about 5 cm 3 /g to about 9 cm 3 /g.
  • Embodiment 68 The aerosol-generating composition of any of Embodiments 67- 67h further comprising one or more additional active substances and/or flavours, and optionally one or more other functional materials.
  • Embodiment 69 The aerosol-generating composition of Embodiment 67 or 68 further comprising one or more other functional materials.
  • Embodiment 70 The aerosol-generating composition of Embodiment 68 or 69, wherein the other functional materials comprise one or more of pH regulators, colouring agents, preservatives, binders, fillers, stabilizers, and/or antioxidants.
  • the other functional materials comprise one or more of pH regulators, colouring agents, preservatives, binders, fillers, stabilizers, and/or antioxidants.
  • Embodiment 71 The aerosol-generating composition of Embodiment 69, wherein the other functional materials comprise one or more fillers.
  • Embodiment 72 The aerosol-generating composition of Embodiment 71 , wherein the fillers are selected from inorganic filler materials, wood pulp, hemp fibre, cellulose and cellulose derivatives.
  • Embodiment 73 The aerosol-generating composition of any of Embodiments 67-72, wherein the aerosol-generating composition comprises no calcium carbonate such as chalk.
  • Embodiment 74 The aerosol-generating composition of any of Embodiments 67-73, wherein the aerosol-generating composition does not comprise fibrous material.
  • Embodiment 75 The aerosol-generating composition of any of Embodiments 67-74, wherein the aerosol-generating composition does not comprise tobacco fibres.
  • Embodiment 76 The aerosol-generating composition of any of Embodiments 67-75, comprising from about 50-100 wt% (WWB) of the aerosol-generating material.
  • Embodiment 77 The aerosol-generating composition of any of Embodiments 67-76, comprising from about 50-95 wt% (WWB) of the aerosol-generating material.
  • Embodiment 78 The aerosol-generating composition of any of Embodiments 67-77, comprising from about 50-90 wt% (WWB) of the aerosol-generating material.
  • Embodiment 79 The aerosol-generating composition of any of Embodiments 67-78, comprising from about 60-100 wt% (WWB) of the aerosol-generating material.
  • Embodiment 80 The aerosol-generating composition of any of Embodiments 67-79, comprising from about 60-95 wt% (WWB) of the aerosol-generating material.
  • Embodiment 81 The aerosol-generating composition of any of Embodiments 67-80, comprising from about 60-90 wt% (WWB) of the aerosol-generating material.
  • Embodiment 82 The aerosol-generating composition of any of Embodiments 67-81 , comprising from about 70-100 wt% (WWB) of the aerosol-generating material.
  • Embodiment 83 The aerosol-generating composition of any of Embodiments 67-82, comprising from about 70-95 wt% (WWB) of the aerosol-generating material.
  • Embodiment 84 The aerosol-generating composition of any of Embodiments 67-83, comprising from about 70-90 wt% (WWB) of the aerosol-generating material.
  • Embodiment 85 The aerosol-generating composition of any of Embodiments 67-84, consisting of, or consisting essentially of the aerosol-generating material.
  • Embodiment 86 A consumable for use in a non-combustible aerosol provision device, the consumable comprising the aerosol-generating composition of any of Embodiments 67-85.
  • Embodiment 87 A non-combustible aerosol provision system comprising the consumable of Embodiment 86 and a non-combustible aerosol provision device.
  • Embodiment 88 The consumable for use in a non-combustible aerosol provision device of Embodiment 86, or the non-combustible aerosol provision system of Embodiment 87, wherein the non-combustible aerosol provision device is a heat-not- burn device.
  • Embodiment 88 A method of making the aerosol-generating material of any of Embodiments 1-66, the method comprising:
  • Embodiment 89 The method of Embodiment 88, further comprising:
  • step (d) separating the material formed in step (c) from the solution comprising the crosslinking agent.
  • Embodiment 90 The method of Embodiment 89, further comprising:
  • Embodiment 91 The method according to any of Embodiments 88-90, wherein the solvent is water.
  • Embodiment 92 The method according to any of Embodiments 88-91 , wherein the botanical extract contains calcium or magnesium ions, preferably calcium ions.
  • Embodiment 93 The method according to any of Embodiments 88-92, wherein the botanical extract comprises a tobacco extract.
  • Embodiment 94 The method according to any of Embodiments 88-93, wherein the botanical extract is a tobacco extract.
  • Embodiment 95 The method according to any of Embodiments 88-94, wherein step (c) comprises contacting the ejected mixture with a solution comprising a botanical extract.
  • Embodiment 96 The method according to any of Embodiments 88-95, wherein the solution comprising the botanical extract further comprises a cross-linking agent.
  • Embodiment 97 The method according to Embodiment 96, wherein the crosslinking agent is a calcium source, such as calcium formate, calcium acetate or calcium lactate.
  • Embodiment 98 The method according to any of Embodiments 88-97, wherein the solution in step (c) comprises from about 0.02 M to about 2.0 M, from about 0.04 M to about 1.0 M, or from about 0.05 M to about 0.07 M metal (e.g. calcium) ions.
  • the solution in step (c) comprises from about 0.02 M to about 2.0 M, from about 0.04 M to about 1.0 M, or from about 0.05 M to about 0.07 M metal (e.g. calcium) ions.
  • Embodiment 99 The method according to any of Embodiments 88-98, wherein the solution in step (c) further comprises another component of the aerosolgenerating material, such as a flavourant and/or an active and/or an aerosol generating agent.
  • another component of the aerosolgenerating material such as a flavourant and/or an active and/or an aerosol generating agent.
  • Embodiment 100 An aerosol-generating material obtainable by the method of any of claims Embodiments 88-99.
  • the materials were conditioned in 22 ⁇ 1°C and 60 ⁇ 2%RH for 48hs.
  • a gel slurry was made in a 10L Robot Coupe mixer (R 10 V.V Robot Coupe). Wood pulp having a Schopper Riegler of 70-80 SR was added to water to form a mixture of water and 3 wt% wood pulp. Alginate was added slowly over 5 minutes at a speed of 600RPM. Ground cellulose was then added slowly over 5 minutes into the slurry mix. This was followed by the addition of glycerol, mixed with water, which was added over 2 minutes. The final gel slurry was left to mix for a further 10 minutes before it was poured into a beaker. This slurry mix was then slowly stirred using an overhead mixer.
  • the resultant slurry comprised wood pulp (7.5wt%), alginate algogel 6021 (7.5wt%), glycerol (50wt%), and ground cellulose (35wt%) (all weight percentages on a dry weight basis).
  • the gel slurry was pumped into a 0.06M calcium formate bath solution using a 620S Watson Marlow peristaltic pump, using a 2.0mm circular nozzle.
  • the residence time was 0 mins (gel strands in mesh tray were removed immediately) and gel strands were dried at 70°C for 3 hours.
  • the tensile strength of individual strands selected from the material was measured using tensile/compression instrument Instron 68TM-5 (TCT_004) using Bluehill Universal software.
  • Non-linear strands to be tested were visually selected from the bulk sample material avoiding clumping with the rest of the sample and with approximately 4 to 6 cm coiled length. Strands were cut from the rest of the sample material. Examples of the strands tested are shown in Figure 13.
  • Keyence VHX-6000 (DMI_001) was used to measure the coiled and uncoiled length of the strands. An image of an example strand is shown in Figure 14. Selective sampling technique was applied instead of random sampling. Strands were visually selected avoiding clumping with the rest of the sample. Strands were cut from the rest of the sample.
  • a series of materials were made by forming a gel slurry in a 10L Robot Coupe mixer (R 10 V.V Robot Coupe) as follows. Wood pulp having a Schopper Riegler of 70-80 SR was added to water to form a mixture of water and 3 wt% wood pulp. Alginate was added slowly over 5 minutes at a speed of 600RPM. Ground cellulose was then added slowly over 5 minutes into the slurry mix. This was followed by the addition of glycerol, mixed with water, which was added over 2 minutes. The final gel slurry was left to mix for a further 10 minutes before it was poured into a beaker. This slurry mix was then slowly stirred using an overhead mixer.
  • the resultant slurry comprised wood pulp, alginate algogel 6021 , glycerol and ground cellulose at 15% solid content, with the percentages of each component set out in Table 5 below.
  • the gel slurry was pumped into a 0.06M calcium formate bath solution using a 620S Watson Marlow peristaltic pump, using a 2.0 mm, 1 .5 mm or 0.5 mm diameter circular nozzle.
  • the residence time in the bath solution was Omins (gel strands in mesh tray were removed immediately) and the gel strands were subsequently dried at 70 °C for 3 hours.
  • the strands of each material were divided into 4 batches and cut to 1 , 2 and 3 cm cut lengths (one batch was left uncut).
  • the fill value was also measured for a known comparative aerosol-generating material comprising 50% glycerol, 7% wood pulp, 7% CMC and 36% ground cellulose.
  • the fill value for this comparative material which was not in the form of non-linear strands of the present invention, was measured to be 2.696 cm 3 /g.
  • a gel slurry was made in a 10L Robot Coupe mixer (R 10 V.V Robot Coupe). Alginate was added slowly to water over 5 minutes at a speed of 600RPM. Ground cellulose was then added slowly over 5 minutes into the slurry mix. Microcrystalline cellulose (MCC) was then added slowly over 5 minutes into the slurry mix. This was followed by the addition of glycerol, mixed with water, which was added over 2 minutes. The final gel slurry was left to mix for a further 10 minutes before it was poured into a beaker. This slurry mix was then slowly stirred using an overhead mixer.
  • MMC Microcrystalline cellulose
  • the resultant slurry comprised alginate algogel 6021 (7.5wt%), glycerol (20wt%), ground cellulose (50wt%), and MCC (22.5wt%) (all weight percentages on a dry weight basis).
  • the gel slurry was pumped into a 0.06M calcium formate bath solution using a 620S Watson Marlow peristaltic pump, using a 0.5mm circular nozzle.
  • the residence time was 0 mins (gel strands in mesh tray were removed immediately) and gel strands were dried at 70°C for 3 hours.
  • a gel slurry was made in a Silverson L5M-A Laboratory Mixer as follows: Water was added to a 10 L glass or metal beaker placed on a hotplate, and heated to boiling point. A mixture of carrageenan and alginate was then added slowly over 2 minutes at a speed of 2000 RPM, after which the mixture was blended for a further 2 minutes. Ground cellulose was then added slowly over 2 minutes into the slurry mix, after which the mixture was blended for a further 2 minutes. MCC was then added slowly over 2 minutes into the slurry mix, after which the mixture was blended for a further 2 minutes. Glycerol was then added slowly over 2 minutes into the slurry mix, after which the mixture was blended for a further 2 minutes.
  • the resultant slurry comprised alginate (12wt%), iota-carrageenan (13wt%), glycerol (35wt%), ground cellulose (23wt%), and MCC (17wt%) (all weight percentages on a dry weight basis).
  • the slurry was then sieved to remove any unblended material, and maintained at a temperature of 70°C - 90 °C whilst being pumped into a bath solution containing tobacco extract, calcium formate, and optionally glycerol and/or water (compositions set out in Table 7 below) using a 620S Watson Marlow peristaltic pump, having a 0.01 - 1.00 mm circular nozzle.
  • Non-linear strands to be tested were visually selected from the bulk sample.
  • the amounts of nicotine and glycerol in the strands were then determined, with the results set out in Table 7 below. Each result is the average of 3 strands from the same batch.
  • the percentage of glycerol and nicotine in the strands was measured using Gas Chromatograph equipped with two split/splitless injection systems, two analytical columns, thermal conductivity (TCD) and flame ionisation (FID) detectors and data analysis system.
  • a slurry was formed comprising water, alginate algogel 6021 (8wt%), glycerol (20wt%), ground cellulose (38wt%), MCC (21wt%) and carrageenan (13%) (all weight percentages on a dry weight basis).
  • the slurry had a 15% solid content.
  • the slurry was pumped into a calcium formate bath solution also comprising 20 wt% glycerol using a 0.8 mm or 1.0 mm circular nozzle.
  • the residence time was 0 mins (gel strands were removed immediately) and gel strands were dried in a heat tunnel at 120°C for 2.5 minutes.
  • a slurry was formed comprising water, alginate algogel 6021 (8wt%), glycerol (20wt%), ground cellulose (38wt%), MCC (21wt%) and carrageenan (13%) (all weight percentages on a dry weight basis).
  • the slurry had a 15% solid content.
  • the slurry was pumped into a 0.06 M calcium formate solution also comprising varying amounts of glycerol, using a 0.5 mm nozzle (Example 6a) or 0.6 mm nozzle (Examples 6b, 6c and 6d).
  • the residence time was 30 seconds and gel strands were dried in a heat tunnel at 120°C for 3.5 minutes.
  • the glycerol content of the final material was measured by gas chromatography with flame ionisation detection (GC-FID), with the results presented below.
  • the glycerol content given below for Examples 6a, 6b and 6c is an average of three strands from the same batch.

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Abstract

L'invention concerne un matériau de génération d'aérosol sous la forme d'un ou de plusieurs brins non linéaires, le matériau de génération d'aérosol contenant : un agent de génération d'aérosol ; un extrait botanique ; un liant réticulé ; éventuellement une ou plusieurs charges ; et éventuellement un agent aromatisant et/ou un acide. L'invention concerne également des compositions de génération d'aérosol comprenant le matériau de génération d'aérosol, des consommables destinés à être utilisés à l'intérieur d'un système de fourniture d'aérosol non combustible, et des systèmes de fourniture d'aérosol non combustibles. L'invention concerne également des procédés de production du matériau de génération d'aérosol.
PCT/EP2023/079368 2022-10-20 2023-10-20 Matériau de génération d'aérosol sous la forme d'un ou de plusieurs brins non linéaires WO2024084083A1 (fr)

Applications Claiming Priority (4)

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GB2215504.8 2022-10-20
GBGB2215504.8A GB202215504D0 (en) 2022-10-20 2022-10-20 Aerosol generating composition
GB2313018.0 2023-08-25
GBGB2313018.0A GB202313018D0 (en) 2023-08-25 2023-08-25 Aerosol generating composition

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015062983A2 (fr) 2013-10-29 2015-05-07 British American Tobacco (Investments) Limited Appareil permettant de chauffer une matière pouvant être fumée
WO2016135331A1 (fr) 2015-02-27 2016-09-01 British American Tobacco (Investments) Limited Cartouche, éléments et procédés de génération de milieu inhalable
WO2021078683A1 (fr) * 2019-10-21 2021-04-29 Philip Morris Products S.A. Nouveau substrat de génération d'aérosol comprenant des espèces d'illicium
WO2021105434A1 (fr) * 2019-11-29 2021-06-03 Nicoventures Trading Limited Consommable destiné à être utilisé avec un système de fourniture d'aérosol non combustible
WO2021105466A1 (fr) * 2019-11-29 2021-06-03 Nicoventures Trading Limited Procédé de fabrication d'un solide amorphe comprenant un matériau de formation d'aérosol
WO2021224600A1 (fr) * 2020-05-05 2021-11-11 Nicoventures Trading Limited Substance de génération d'aérosol
WO2022023763A1 (fr) * 2020-07-31 2022-02-03 Nicoventures Trading Limited Consommable pour un système de fourniture d'aérosol

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015062983A2 (fr) 2013-10-29 2015-05-07 British American Tobacco (Investments) Limited Appareil permettant de chauffer une matière pouvant être fumée
WO2016135331A1 (fr) 2015-02-27 2016-09-01 British American Tobacco (Investments) Limited Cartouche, éléments et procédés de génération de milieu inhalable
WO2021078683A1 (fr) * 2019-10-21 2021-04-29 Philip Morris Products S.A. Nouveau substrat de génération d'aérosol comprenant des espèces d'illicium
WO2021105434A1 (fr) * 2019-11-29 2021-06-03 Nicoventures Trading Limited Consommable destiné à être utilisé avec un système de fourniture d'aérosol non combustible
WO2021105466A1 (fr) * 2019-11-29 2021-06-03 Nicoventures Trading Limited Procédé de fabrication d'un solide amorphe comprenant un matériau de formation d'aérosol
WO2021224600A1 (fr) * 2020-05-05 2021-11-11 Nicoventures Trading Limited Substance de génération d'aérosol
WO2022023763A1 (fr) * 2020-07-31 2022-02-03 Nicoventures Trading Limited Consommable pour un système de fourniture d'aérosol

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