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
  • A24B15/12—Chemical features of tobacco products or tobacco substitutes of reconstituted 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
  • A24B15/10—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
  • A24B15/18—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
  • 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
  • A24B15/303—Plant extracts other than 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
  • A24B15/42—Treatment of tobacco products or tobacco substitutes by chemical substances by organic and inorganic substances
• • A—HUMAN NECESSITIES
  • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
  • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES OF 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 application relates to aerosol generating materials, articles comprising the aerosol generating material for use in non-combustible aerosol provision devices, and non-combustible aerosol provision systems comprising articles and devices.
• Aerosol-generating systems produce an aerosol during use, which is inhaled by a user.
• tobacco heating devices heat an aerosol-generating material such as tobacco to form an aerosol by heating, but not burning, the aerosol-generating material.
• an extruded aerosol generating material comprising: a fibrous material, an active and/or a flavourant, and an additive for scavenging carbonyls.
• an aerosol generating material comprising: a non-tobacco botanical material, an active and/or flavourant, and a binder system comprising a first binder and a second binder, wherein a ratio of the non-tobacco botanical material to the binder system is from about 2:1 to about 4:1, and the first binder and the second binder are different.
• an aerosol generating rod comprising an aerosol generating material according to the first aspect or the second aspect.
• an article comprising the aerosol generating material according to the first aspect or the second aspect, or the aerosol generating rod according to the third aspect.
• a delivery system comprising the aerosol generating rod according to the third aspect or the article according to the fourth aspect.
• aerosol generating material describes a material that is capable of generating aerosol, for example when heated, irradiated or energized in any other way.
• the aerosol generating material is in an extruded form.
• the aerosol generating material may be incorporated into an article for use with a delivery system.
• An article is sometimes referred to as consumable throughout this disclosure.
• delivery system is intended to encompass systems that deliver at least one substance to a user and includes non-combustible aerosol provision systems that release compounds from an aerosol-generating material without combusting the aerosol-generating material, such as electronic cigarettes, tobacco heating products, and hybrid systems to generate aerosol using a combination of aerosol-generating materials.
• a "non-combustible" aerosol provision system is one where a constituent aerosol-generating material of the aerosol provision system (or component thereof) is not combusted or burned in order to facilitate delivery of at least one substance to a user.
• the delivery system is a non-combustible aerosol provision system, such as a powered non-combustible aerosol provision system.
• the non-combustible aerosol provision system can be an electronic cigarette, also known as a vaping device or electronic nicotine delivery system (END), although it is noted that the presence of nicotine in the aerosol-generating material is not a requirement.
• END electronic nicotine delivery system
• the non-combustible aerosol provision system may be an aerosol-generating material heating system, also known as a heat-not-burn system.
• An example of such a system is a tobacco heating system.
• the non-combustible aerosol provision system is a hybrid system to generate aerosol using a combination of aerosol-generating materials, one or a plurality of which may be heated.
• Each of the aerosol-generating materials may be, for example, in the form of a solid, liquid or gel and may or may not contain nicotine.
• the hybrid system comprises a liquid or gel aerosol-generating material and a solid aerosol-generating material.
• the solid aerosol-generating material may comprise, for example, tobacco or a non-tobacco product.
• the non-combustible aerosol provision system may comprise a non-combustible aerosol provision device and a consumable for use with the non-combustible aerosol provision device.
• the non-combustible aerosol provision system such as a non-combustible aerosol provision device thereof, may comprise a power source and a controller.
• the power source may, for example, be an electric power source or an exothermic power source.
• the exothermic power source comprises a carbon substrate which may be energised so as to distribute power in the form of heat to an aerosol-generating material or to a heat transfer material in proximity to the exothermic power source.
• the non-combustible aerosol provision system comprises an area for receiving the article for use in the non-combustible aerosol-provision system, a housing, a mouthpiece, a filter and/or an aerosol-modifying agent.
• the aerosol generating material is in the form of a rod.
• the aerosol generating rod may have a total weight of between about 250 mg and about 350 mg.
• the aerosol generating rod may be wrapped in a wrapper having a permeability of less than 100 Coresta Units.
• the aerosol generating rod may have an outer circumference of at least about 19 mm, preferably between about 19 mm and about 23 mm or about 21 mm. This may facilitate insertion of the article into an aerosol generation device.
• rod is used to describe a generally cylindrical element of substantially circular, oval, or elliptical cross section.
• the aerosol generating material has a filling value from about 2 cm 3 /g to about 10 cm 3 /g. In some embodiments, the aerosol generating material has a filling value of from about 3 cm 3 /g to about 8 cm 3 /g, for example the aerosol generating material may have a filling value of from about 4 cm 3 /g to about 7 cm 3 /g, such as from about 4 cm 3 /g to about 6 cm 3 /g. In some embodiments, the aerosol generating material has a filling value of about 5 cm 3 /g.
• the filling value is between about 2 cm 3 /g to about 10 cm 3 /g, for example about 5 cm 3 /g
• a consumable containing the aerosol generating material can achieve the same firmness using less material. Therefore, the overall weight of material used to achieve the same/required filling value, is less, which can provide a saving to the cost of goods.
• the aerosol generating material comprises a fibrous material.
• a fibrous material may be defined as a material which comprises individual fibres which are collectively held together. Fibrous materials also include dietary fibres, i.e. plant-derived materials which cannot be completely broken down by the human digestive enzymes. Fibrous materials can be natural fibres or synthetic fibres. It is understood that the definition of fibrous materials, as used herein, is not intended to be particularly limiting and includes long, thin fibrous materials in addition to more particulate-shaped materials. Examples of fibrous materials can include materials originating from tobacco as well as materials originating from non-tobacco botanical materials.
• the fibrous material comprises a tobacco material.
• the fibrous material may comprise cut leaf tobacco, whole leaf tobacco, tobacco strips, tobacco stems, tobacco scraps, tobacco fines, and tobacco winnowings.
• the tobacco material is included in an amount of greater than about 60 wt%, based on the total weight of the aerosol generating material. In some embodiments, the tobacco material is included in an amount of greater than about 65 wt%, such as greater than about 70 wt%, such as greater than about 75 wt%, based on the total weight of the aerosol generating material.
• the tobacco material is included in an amount of from about 60 wt% to about 95 wt%, based on the total weight of the aerosol generating material. In some embodiments, the tobacco material is included in an amount of from about 65 wt% to about 90 wt%, such as from about 65 wt% to about 85 wt%, such as from about 70 wt% to about 85 wt%, such as from about 70 wt% to about 80 wt%, based on the total weight of the aerosol generating material.
• the fibrous material comprises a non-tobacco botanical material.
• Non-tobacco botanical materials may be selected from botanical materials which comprise favourable aroma properties for use in a non-combustible aerosol provision system.
• the non-tobacco botanical material may comprise relatively few aroma compounds compared to traditional tobacco material; therefore, an aerosol produced from a non-tobacco botanical material may have a different profile of volatile compounds compared to an aerosol produced from a tobacco material.
• the non-tobacco botanical material may deliver an aerosol which is considered favourable by a consumer of tobacco-based delivery systems.
• a non-tobacco botanical material may produce an aerosol, when heated, with a sensorial experience that is comparable to that provided by a conventional combustible product, such as a cigarette.
• the non-tobacco botanical material is selected from seed-producing plants which do not develop persistent woody tissue and which are often valued for their medicinal or sensorial characteristics.
• the non-tobacco botanical material may be selected from: 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, dami
• 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 non-tobacco botanical material may be selected from the list consisting of: oat, wheat, pea, flaxseed, apple, psyllium, ginger, jasmine, cocoa, bamboo, citrus and combinations thereof.
• the non-tobacco botanical material may selected from eucalyptus, star anise, cocoa and hemp, rooibos, mint, fennel, and combinations thereof.
• the non-tobacco botanical material may be rooibos.
• Rooibos i.e. Aspalathus linearis
• Aspalathus linearis is a member of the Fabaceae plant family and is grown in South Africa. Recently, rooibos has been granted a protected designation of origin status which restricts the name, rooibos, to only be used for Aspalathus linearis leaves cultivated in the Cederberg region of South Africa. For the avoidance of doubt, when referring to rooibos herein, it is intended to incorporate any plant material deriving from Aspalathus linearis. It is not intended to only include plant material originating from the Cederberg region of South Africa.
• the aerosol generating material comprises two, or more non-tobacco botanical materials. In some embodiments, the aerosol generating material comprises rooibos and a second non-tobacco botanical material.
• non-tobacco botanical material includes 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 non-tobacco botanical material is included in an amount of from about 30 wt% to about 55 wt%, based on the total weight of the aerosol generating material.
• the non-tobacco botanical material may be included in an amount of from about 35 wt% to about 55 wt%, such as from about 40 wt% to about 55 wt%, such as from about 45 wt% to about 55 wt%, such as from about 50 wt% to about 55 wt%, based on the total weight of the aerosol generating material.
• the non-tobacco botanical material is included in an amount of about 45 wt%, 46 wt%, 47 wt%, 48 wt%, 49 wt%, 50 wt%, 51 wt%, 52 wt%, 53 wt%, 54 wt%, 55 wt%, based on the total weight of the aerosol generating material.
• non-tobacco botanical component includes 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 non-tobacco botanical component may comprise stem material and leaf material, and for example, the aerosol generating material comprises less than about 10 wt% of stem material, based on the total weight of the aerosol generating material.
• components within an aerosol generating material may influence the generation of carbonyls.
• the bulk of the aerosol generating material i.e. the non-tobacco botanical component in this instance, can impact the generation of carbonyl production.
• carbonyl generation may vary based on the amount of cellulose within the fibrous material, where fibrous materials containing a greater concentration of cellulose generate an aerosol with a higher level of carbonyls.
• hemicellulose content and the natural sugars contained within a material impact the generation of carbonyl compounds. For example, materials which have a relatively greater amount of hemicellulose, and/or sugar, may generate aerosols with a higher concentration of carbonyls.
• Certain parts of a plant may contain more, or less, cellulose material, compared to other parts of the plant.
• the stem of a non-tobacco botanical plant may contain a higher concentration of cellulose material compared to other parts of the non-tobacco plant, such as the leaves.
• the different parts of a non-tobacco botanical plant material may be separated by any known method.
• the different parts may be separated by visual inspection.
• the different parts may be separated by threshing.
• the different parts may be separated based on density of the material.
• the different parts may be separated based on particle size.
• the non-tobacco botanical component comprises bark material and the aerosol generating material comprises less than about 10 wt% bark, based on the total weight of the aerosol generating material.
• the non-tobacco botanical component comprises leaves comprising a midrib and veins and the aerosol generating material comprises less than about 10 wt% midrib and/or veins, based on the total weight of the aerosol generating material.
• an aerosol generating material comprises a non-tobacco botanical component, the non-tobacco botanical component comprising a root material and a leaf material; and an active and/or a flavourant; wherein the aerosol generating material comprises less than about 10 wt% of root material, based on the total weight of the aerosol generating material.
• an aerosol generating material comprises a non-tobacco botanical component, the non-tobacco botanical component comprising a bark material and a leaf material; and an active and/or a flavourant; wherein the aerosol generating material comprises less than about 10 wt% of bark material, based on the total weight of the aerosol generating material.
• an aerosol generating material comprises a non-tobacco botanical component, the non-tobacco botanical component comprising a husk material and a leaf material; and an active and/or a flavourant; wherein the aerosol generating material comprises less than about 10 wt% of husk material, based on the total weight of the aerosol generating material.
• an aerosol generating material comprises a non-tobacco botanical component, the non-tobacco botanical component comprising a shell material and a leaf material; and an active and/or a flavourant; wherein the aerosol generating material comprises less than about 10 wt% of shell material, based on the total weight of the aerosol generating material.
• the non-tobacco botanical component may be in the form of particles.
• the non-tobacco botanical component may be in the form of ground particles.
• the component may be ground into a suitable particle size by any method known by the skilled person.
• the non-tobacco botanical material may have an average particle size, such as a D50, of less than 200 ⁇ m, such as less than 150 ⁇ m, such as less than 125 ⁇ m, such as less than 100 ⁇ m, such as less than 90 ⁇ m, such as less than 80 ⁇ m, such as less than 70 ⁇ m.
• the non-tobacco botanical material may have an average particle size, such as a D90 of less than 200 ⁇ m, such as less than 150 ⁇ m, such as less than 125 ⁇ m, such as less than 100 ⁇ m, such as less than 90 ⁇ m, such as less than 80 ⁇ m, such as less than 70 ⁇ m.
• the non-tobacco material has a particle size, such as a D90 of less than about 60 ⁇ m. In some embodiments, the non-tobacco material has a particle size, such as a D90 of less than about 70 ⁇ m. In some embodiments, the non-tobacco material has a particle size, such as a D90 of less than about 80 ⁇ m. In some embodiments, the non-tobacco material has a particle size, such as a D90 of less than about 90 ⁇ m. In some embodiments, the non-tobacco material has a particle size, such as a D90 of less than about 100 ⁇ m.
• the non-tobacco material has a particle size, such as a D90 of about 60 ⁇ m. In some embodiments, the non-tobacco material has a particle size, such as a D90 of about 70 ⁇ m. In some embodiments, the non-tobacco material has a particle size, such as a D90 of about 80 ⁇ m. In some embodiments, the non-tobacco material has a particle size, such as a D90 of about 90 ⁇ m. In some embodiments, the non-tobacco material has a particle size, such as a D90 of about 100 ⁇ m.
• the maximum dimension of the non-tobacco botanical material can be up to about 1 mm, up to about 1.25 mm, up to about 1.5 mm.
• the particle size of the non-tobacco botanical material can influence the roughness of the sheet or shredded sheet of aerosol generating material.
• the particle size of the non-tobacco botanical material may be modified by any process known to a person skilled in the art.
• the material may be ground in order to reduce the particle size. It is thought that reducing the moisture content of the non-tobacco material may facilitate more efficient particle size reduction by grinding.
• the non-tobacco botanical material may be dried, such as in an oven, prior to grinding. In some instances, it is preferable to reduce the moisture content of the non-tobacco botanical material by up to about 5% prior to grinding.
• the aerosol generating material comprises one or more additives for scavenging carbonyls.
• carbonyls is intended to encompass reactive carbonyl species which may be found in an aerosol generated from an aerosol generating material.
• Reactive carbonyl species include aldehydes and ketones such as formaldehyde, acetaldehyde, 2,3-butanedione, 2,3-pentanedione, acetoin, acetone, acrolein, butyraldehyde, crotonaldehyde, glyoxal, isobutyraldehyde, methyl ethyl ketone, methylglyoxal, and propionaldehyde.
• aerosol generating materials may produce differing levels of carbonyls when heated, for example in an aerosol provision system.
• the components within the aerosol generating material may influence the generation of carbonyls.
• the bulk of the aerosol generating material i.e. the fibrous material in this instance, can impact the generation of carbonyl production.
• carbonyl generation may vary based on the amount of cellulose within the fibrous material, where fibrous materials containing more cellulose generate an aerosol with a higher level of carbonyls.
• carbonyl generation may be influenced by temperature, specifically the temperature to which the aerosol generating material is heated.
• Many aerosol provision systems are configured to heat an aerosol generating material to approximately 250-300 °C. However, such systems typically take 15-20+ seconds in order to reach optimum temperature.
• This initial heating profile may be referred to as the ramp up time and illustrates the amount of time that a user must wait before taking their first puff. There may be a desire to decrease this ramp up time, for example to less than 10 seconds, perhaps less than 5 seconds. This would be advantageous because the user has less time to wait before their first puff of a session.
• an additive for scavenging carbonyls would facilitate the use of a variety of fibrous materials and also allow heating of an aerosol generating material to a higher temperature, while minimising the exposure of the consumer to an increased level of carbonyls.
• the additive is selected from the list consisting of: ammonium-based scavengers, anti-oxidant-based scavengers, organic acid-based scavengers, polyphenol-based scavengers, flavonoid and (ester) derivative -based scavengers, amine-based scavengers, phenolic-based scavengers, amino acid-based scavengers and combinations/mixtures thereof.
• Ammonium-based scavengers may be selected from: diammonium phosphate, ammonium dihydrogen phosphate, ammonium magnesium phosphate, and combinations/mixtures thereof.
• Polyphenol-based scavengers may be selected from: chlorogenic acid, gallic acid, and combinations/mixtures thereof.
• An example of an antioxidant-based scavenger is ferulic acid.
• An example of an organic acid-based scavenger is fumaric acid.
• Flavonoid and (ester) derivative -based scavengers may be selected from: (+)-catechin hydrate, (-)-epicatechin, (-)-epigallocatechin gallate, and combinations/mixtures thereof.
• phenolic-based scavengers examples include: hydroxytyrosol, and phloroglucinol dihydrate, and combinations thereof.
• Amine-based scavengers may be selected from: ethylenediamine hydrochloride, polyallylamine hydrochloride, ethylenediamine diacetate, 4-aminobenzoic acid, 3-aminobenzoic acid, and combinations/mixtures thereof.
• Amino acid-based scavengers may be selected from: lysine, arginine, proline, methionine, L-cystine, and combinations thereof.
• the additive is selected from sugar alcohols such as: ethylene glycol, glycerol, erythritol, threitol, arabitol, xylitol, ribitol, mannitol, sorbitol, galactitol, fucitol, iditol, inositol, volemitol, isomalt, maltitol, lactitol, maltotriitol, maltotetraitol, polyglycitol, and combinations/mixtures thereof.
• sugar alcohols such as: ethylene glycol, glycerol, erythritol, threitol, arabitol, xylitol, ribitol, mannitol, sorbitol, galactitol, fucitol, iditol, inositol, volemitol, isomalt, maltitol,
• the additive is selected from diammonium phosphate, gallic acid, fumaric acid, chlorogenic acid, and ferulic acid. In some embodiments, the additive is diammonium phosphate.
• the additive is included in an amount of from about 0.01 wt% to about 5 wt%, based on the total weight of the aerosol generating material.
• the additive may be included in an amount of from about 0.1 wt% to about 5 wt%, from about 0.2 wt% to about 5 wt% from about 0.5 wt% to about 5 wt%, from about 0.5 wt% to about 4.5 wt%, from about 0.5 wt% to about 4 wt%, from about 0.5 wt% to about 3.5 wt%, from about 0.5 wt% to about 3 wt%, from about 0.5 wt% to about 2.5 wt%, from about 0.5 wt% to about 2 wt%, based on the total weight of the aerosol generating material.
• the aerosol generating material comprises two additives, and the combined total inclusion amount of both additives is from about 0.01 wt% to about 5 wt%, based on the total weight of the aerosol generating material.
• the additive may be included in an amount of from about 0.1 wt% to about 5 wt%, from about 0.2 wt% to about 5 wt% from about 0.5 wt% to about 5 wt%, from about 0.5 wt% to about 4.5 wt%, from about 0.5 wt% to about 4 wt%, from about 0.5 wt% to about 3.5 wt%, from about 0.5 wt% to about 3 wt%, from about 0.5 wt% to about 2.5 wt%, from about 0.5 wt% to about 2 wt%, based on the total weight of the aerosol generating material.
• the aerosol generating material comprises two additives, and the combined total inclusion amount of both additives is about 0.5 wt%, based on the total weight of the aerosol generating material. In some embodiments, the combined total inclusion of both additives is about 1 wt%, based on the total weight of the aerosol generating material. In some embodiments, the combined total inclusion of both additives is about 2 wt%, based on the total weight of the aerosol generating material. In some embodiments, the combined total inclusion of both additives is about 3 wt%, based on the total weight of the aerosol generating material. In some embodiments, the combined total inclusion of both additives is about 4 wt%, based on the total weight of the aerosol generating material. In some embodiments, the combined total inclusion of both additives is about 5 wt%, based on the total weight of the aerosol generating material.
• the aerosol generating material comprises three additives. In some embodiments, the aerosol generating material comprises four, or more, additives.
• the aerosol generating material comprises a combination of diammonium phosphate and gallic acid. In some embodiments, the aerosol generating material comprises a combination of diammonium phosphate and fumaric acid. In some embodiments, the aerosol generating material comprises a combination of diammonium phosphate and chlorogenic acid. In some embodiments, the aerosol generating material comprises a combination of diammonium phosphate and ferulic acid. In some embodiments, the aerosol generating material comprises a combination of diammonium phosphate and ethylenediamine diacetate.
• the aerosol generating material comprises a combination of diammonium phosphate, gallic acid, and fumaric acid. In some embodiments, the aerosol generating material comprises a combination of diammonium phosphate, gallic acid, and chlorogenic acid. In some embodiments, the aerosol generating material comprises a combination of diammonium phosphate, gallic acid, and ferulic acid. In some embodiments, the aerosol generating material comprises a combination of diammonium phosphate, fumaric acid, and chlorogenic acid. In some embodiments, the aerosol generating material comprises a combination of diammonium phosphate, ferulic acid, and chlorogenic acid.
• the aerosol generating material comprises a combination of diammonium phosphate, ferulic acid, and fumaric acid. In some embodiments, the aerosol generating material comprises a combination of diammonium phosphate, ethylenediamine diacetate, and fumaric acid.
• An active as used herein may be a physiologically active material, which is a material intended to achieve or enhance a physiological response.
• the active substance may for example be selected from nutraceuticals, nootropics, psychoactives.
• the active substance may be naturally occurring or synthetically obtained.
• the active substance may comprise for example nicotine, caffeine, taurine, theine, vitamins such as B6 or B12 or C, melatonin, cannabinoids, or constituents, derivatives, or combinations thereof.
• the active substance may comprise one or more constituents, derivatives or extracts of tobacco, cannabis or another botanical.
• the active substance may be a legally permissible recreational drug.
• the active substance may comprise 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.
• the active substance may be CBD or a derivative thereof.
• the active may be derived from one of more botanicals, such as one or more of the botanicals described hereinabove.
• the active substance may comprise or be derived from one or more botanicals or constituents, derivatives or extracts thereof.
• the aerosol-generating material may not comprise tobacco and/or may not comprise tobacco-derived material. In some embodiments, the aerosol-generating material is substantially free from tobacco or tobacco derived material.
• the flavour may comprise a sensate, which is intended to achieve a somatosensorial sensation which are usually chemically induced and perceived by the stimulation of the fifth cranial nerve (trigeminal nerve), in addition to or in place of aroma or taste nerves, and these may include agents providing heating, cooling, tingling, numbing effect.
• a suitable heat effect agent may be, but is not limited to, vanillyl ethyl ether and a suitable cooling agent may be, but not limited to eucalyptol, WS-3 or WS-23.
• the flavour may be in the form of a flavour composition which comprises or consists of the flavour.
• the flavour composition may comprise the flavour and one or more other components, such as a flavour, or a solvent, such as water, ethanol, isopropanol, n-butanol, ethyl acetate, isopropyl acetate, butyl acetate, anisole, glycerol or propylene glycol.
• a solvent such as water, ethanol, isopropanol, n-butanol, ethyl acetate, isopropyl acetate, butyl acetate, anisole, glycerol or propylene glycol.
• the inclusion of a solvent in the flavour composition may improve the homogeneity of the flavour in the aerosol-generating material and improve the absorption or adsorption of the flavour into the aerosol-generating material.
• the active and/or flavourant is included in an amount of from about 0.5 wt% to about 10 wt%, based on the total weight of the aerosol generating material.
• the active and/or flavourant may be included in an amount of from about 1 wt% to about 10 wt%, from about 1.5 wt% to about 10 wt%, from from about 1.5 wt% to about 9 wt%, from about 1.5 wt% to about 8 wt%, from about 1.5 wt% to about 7 wt%, from about 1.5 wt% to about 6 wt%, from about 1.5 wt% to about 5 wt%, from about 1.5 wt% to about 4 wt%, based on the total weight of the aerosol generating material.
• the total amount of the acid may be from about 0.1% to about 5% by weight of the aerosol generating material.
• the total amount of the acid is from about 0.1% to about 5%, from about 0.5% to about 5%, from about 1% to about 5%, from about 1.5% to about 5%, from about 2% to about 5%, or from about 2.5% to about 5% by weight of the aerosol generating material.
• the aerosol generating material may comprise a binder, such as a gelling agent, and an aerosol former.
• a substance to be delivered and/or filler may also be present.
• a solvent such as water, is also present and one or more other components of the aerosol-generating material may or may not be soluble in the solvent.
• the binder may be selected from one or more compounds selected from the group comprising alginates, pectins, starches (and derivatives), amylose, amylopectin, celluloses (and derivatives), gums, silica or silicones compounds, clays, polyvinyl alcohol, a polysaccharide such as galactomannan or glucomannan, a gum such as acacia gum, xanthan gum, pullulan, gellan gum, tragacanth gum, gum karaya, and combinations thereof.
• the binder may be selected from the list consisting of: modified starch, glucomannan, curdlan gum, amylopectin, HPMC, maltodextrin, carrageenan, xanthan gum, alginate, gum arabic, karaya gum, locust bean gum, gellan gum, agar, CMC, and combinations thereof.
• the aerosol generating material comprises a mixture of at least two binders. In some embodiments, when the aerosol generating material comprises at least two binders, the two binders are different. In some embodiments, the aerosol generating material comprises at least three binders. In some embodiments, each of the three binders are different. In some embodiments, the aerosol generating material comprises modified starch, glucomannan, and curdlan gum.
• the binders may collectively be called a binder system.
• a ratio of the fibrous material to the binder system is from about 2:1 to about 4:1.
• a ratio of the fibrous material to the binder system is from about 2:1 to about 7:2, from about 5:2 to about 7:2, from about 3:1 to about 7:2.
• a ratio of the fibrous material to the binder system is about 3:1.
• a ratio of the non-tobacco botanical material to the binder system is from about 2:1 to about 4:1, such as from about 2:1 to about 7:2, from about 5:2 to about 7:2, from about 3:1 to about 7:2.
• a ratio of the non-tobacco botanical material to the binder system is about 3:1.
• the filler may include one or more organic fillers, such as wood pulp, cellulose, cellulose derivatives (e.g. microcrystalline cellulose and methylcellulose) and a metal carbonate, such as calcium carbonate.
• the aerosol generating material contains calcium carbonate, such as chalk. In some embodiments, the aerosol generating material does not contain calcium carbonate.
• the filler is included in an amount of less than about 10 wt% based on the total weight of the aerosol generating material.
• the filler may be included in an amount of less than about 9 wt%, such as less than about 8 wt%, less than about 7 wt%, less than about 6 wt%, less than about 5 wt%, less than about 4 wt%, less than about 3 wt%, based on the total weight of the aerosol generating material.
• the aerosol generating material comprises an aerosol-former material.
• An aerosol-former material is a material that is capable of forming an aerosol.
• the aerosol-former material 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 amount of aerosol former material incorporated into the aerosol-generating material may be at least about 3 wt%, at least about 4 wt%, 5 wt%, 6 wt%, 7 wt%, 8 wt%, 9 wt%, 10 wt%, 11 wt%, 12 wt%, 13 wt%, 14 wt%, 15 wt%, 16 wt%, 17 wt%, 18 wt%, 19 wt%, or at least about 20 wt% based on the total weight of the aerosol generating material.
• the amount of aerosol former material incorporated into the pre-cursor material and/or aerosol-generating material may be up to about 15 wt%, up to about 16 wt%, 17 wt%, 18 wt%, 19 wt%, 20 wt%, 21 wt%, 22 wt%, 23 wt%, 24 wt%, 25 wt%, 26 wt%, 27 wt%, 28 wt%, 29 wt% or up to about 30 wt% based on the total weight of the aerosol generating material.
• aerosol former material is included in an amount of from about 3% to about 30% by weight of the aerosol generating material, such as in an amount of from about 10% to about 30%.
• the aerosol generating material may comprise one or more other materials.
• the aerosol-generating material may comprise one or more of pH regulators, colouring agents, preservatives, binders, fillers, stabilizers, and/or antioxidants.
• sugar is intended to include simple sugars such as monosaccharides and compound sugars such as disaccharides.
• monosaccharides and/or disaccharides the intention is to refer to purposely added monosaccharides and/or disaccharides. It is appreciated that there may be a certain level of monosaccharides and/or disaccharides naturally present in, e.g. non-tobacco botanical materials, however, when referring to these components herein, the intention is to any additional inclusion.
• the aerosol generating material may comprise a monosaccharide and/or a disaccharide.
• the aerosol generating material may comprise glucose, fructose, galactose, sucrose, lactose, maltose, and combinations/mixtures thereof.
• Including a sugar, such as a monosaccharide and/or a disaccharide may facilitate the production of an extruded aerosol generating material exhibiting preferable characteristics. It is thought that, when preparing an extruded material, the level of sugar present in the mixture plays an important role in the resulting extruded material. For example, extruded materials which contain too little sugar, or too much sugar, may not form extruded structures which are suitable for further use in a consumable. The use of such extruded materials would be particularly limited.
• Materials such as certain non-tobacco botanical materials, may contain less sugar than tobacco material and therefore additional sugar may be incorporated in extruded aerosol generating materials comprising such non-tobacco botanical materials.
• the aerosol generating material does not include monosaccharides and/or disaccharides.
• aerosol formers such as propylene glycol and/or glycerol may be added in order to facilitate production of a suitable extruded material.
• one or more binders may be incorporated into the mixture before extruding, as discussed elsewhere herein.
• the aerosol generating material comprises a monosaccharide and/or a disaccharide in an amount of from about 0.5 wt% to about 15 wt%, based on the total weight of the aerosol generating material.
• the aerosol generating material may comprise a monosaccharide and/or a disaccharide in an amount of from about 0.5 wt% to about 10 wt%, from about 0.5 wt% to about 8 wt%, from about 0.5 wt% to about 7 wt%, from about 0.5 wt% to about 6 wt%, from about 0.5 wt% to about 5 wt%, from about 0.5 wt% to about 4 wt%, from about 0.5 wt% to about 3 wt%, based on the total weight of the aerosol generating material.
• the monosaccharide and/or disaccharide is included in an amount of up to about 3 wt%, based on the total weight of the aerosol generating material, such as up to about 4 wt%, up to about 5 wt%, up to about 6 wt%, up to about 7 wt%, up to about 8 wt%, up to about 9 wt%, up to about 10 wt%, based on the total weight of the aerosol generating material.
• the extruded aerosol generating material comprises substantially no monosaccharides and/or disaccharides.
• the extruded aerosol generating material may comprise no additional monosaccharides and/or disaccharides other than those that may naturally be present in the non-tobacco botanical material.
• the aerosol generating material is in extruded form.
• An extruded material is a material which is prepared by mixing components to form a mixture and extruding the mixture using an extruder equipped with an orifice, such as a shaping die.
• Extrusion may be performed using one of the main classes of extruders: screw, twin screw, sieve and basket, roll, and ram extruders.
• the mixture may be exposed to elevated pressure when forced though the orifice to form an extruded material.
• the extruded material has an elongated form and/or it may be cut into segments of a desired length as it exits the extruder. A rod-like extruded material may subsequently be cut into segments of desired length.
• the extruded material may be shaped by the orifice or die through which it is forced. In some embodiments, the extruded material is cut into pieces of desired length. The pieces formed in this way may be used as aerosol generating components or they may undergo further processing.
• the orifice or die may be shaped to provide a strand of extruded pre-cursor material.
• the extruded pre-cursor material may have the form of a cylindrical rod.
• the extruded pre-cursor material may have different cross-sectional shapes, including oval, polygonal (such as triangular, square, etc.), and stars.
• the extruder may be operated without applying heat to the system (for example, at room/ambient temperature) or at an elevated temperature. Where the extruder is operated at an elevated temperature, the extruder may be operated at a temperatures of up to about 200 °C. After the material exits the die of the extruder, it may be cooled, for example to room temperature, to provide the extruded material.
• the mixture may be exposed to pressures ranging from about 2 bar to about 100 bar, or from about 5 bar to about 60 bar, depending on the design of the die being used.
• Flavour may be applied to the extruded material.
• the flavour may be applied by applying a film of the flavour composition onto a surface of the material, spraying the flavour composition onto the material, applying droplets of the flavour composition onto a surface of the material or submerging the material in a solution comprising the flavour composition.
• Liquids may be added to the mixture during the extrusion process.
• water may be added to the mixture, for example as a processing aid to assist dissolution or solubilisation of components of the mixture, or to aid binding or agglomeration.
• a wetting agent may be added to the mixture.
• the liquid may be an aerosol former material such as glycerol or others discussed herein, such as water.
• an aerosol former material such as glycerol or others discussed herein, such as water.
• the liquid is applied not only on the surface, but, as a result of the extruder pressure combined with the intensive mixing by high shear forces, the extruded pre-cursor material becomes impregnated with the liquid.
• the liquid is an aerosol former material
• this can result in a high availability of the aerosol former material in the extruded pre-cursor material to enhance evaporation of flavour components and other components of the final aerosol-forming material.
• the liquid is water, this may assist in the extrusion process, allowing a suitable/useable extruded aerosol generating material to be formed.
• the moisture content of the mixture is from about 5 wt% to about 15 wt%, such as from about 7 wt% to about 13 wt%, such as from about 10 wt% to about 12 wt%, based on the total weight of the mixture.
• the extruded material is formed into a desired shape selected to enhance or promote the release of active and/or flavour, for example by providing a form having a large surface area per unit volume.
• This large surface area may be provided on the outer surface of the extruded pre-cursor material, for example by selecting cross-sectional shapes with large perimeter.
• the orifice or die may be shaped to provide an extruded material with inner channels.
• the presence of such inner channels provide further surface area and can enhance active and/or flavour release.
• the channel structure of the extruded aerosol generating material has enlarged inner surface area leading to improved heat and mass transfer. As a result, such components exhibit better, more uniform aerosol delivery.
• the structure with channels exhibits significantly improved strength in both the radial and axial directions, which is beneficial for the further processing of the aerosol generating material, for example when it is cut into segments and incorporated into a consumable.
• Figure 1 is a cross-sectional view of an article 9 for use in an aerosol delivery system.
• the article 9 comprises a mouthpiece 10, and an aerosol generating section 11, connected to the mouthpiece 10.
• the aerosol generating section 11 comprises a body of aerosol generating material 2 in the form of an extruded rod.
• the article 9 comprises a downstream end 2b and an upstream end 2a distal from the downstream end 2b.
• the article 9 comprises a longitudinal axis X-X'.
• the aerosol-generating section comprises aerosol-generating material in the form of an extruded body 1 comprising channels 4a, 4b and a cavity 3a for receiving an aerosol generator.
• the mouthpiece 10 includes a cooling section 12, also referred to as a cooling element, positioned immediately downstream of and adjacent to the aerosol-generating section 11.
• the cooling section 12 is in an abutting relationship with the aerosol-generating material 2.
• the mouthpiece 2 also includes, in the present example, a body of material 13 downstream of the cooling section 12, and a hollow tubular element 14 downstream of the body of material 13, at the mouth end of the article 9.
• the cooling section 12 provides a physical displacement between the aerosol-generating section 11 and the body of material 13. The physical displacement provided by the cooling section 12 can provide a thermal gradient across the length of the cooling section 12.
• a tipping paper (not shown) is wrapped around the full length of the mouthpiece 10 and over part of the aerosol-generating section 11 and has an adhesive on its inner surface to connect the mouthpiece 10 and aerosol-generating section 11.
• the aerosol-generating section 11 comprises a wrapper (not shown), which forms a first wrapping material, and the tipping paper forms an outer wrapping material which extends at least partially over the body of aerosol-generating material 2 to connect the mouthpiece 10 and aerosol-generating material 2.
• the tipping paper can extend only partially over the rod of aerosol-generating material.
• a moisture impermeable wrapper circumscribes aerosol-generating material 2 and comprises a paper wrapper.
• the wrapper comprises a aluminium foil, optionally comprising a barrier coating to make the material of the wrapper substantially moisture impermeable.
• the body of material 13 and hollow tubular element 14 each define a substantially cylindrical overall outer shape and share a common longitudinal axis.
• the body of material 13 is wrapped in a first plug wrap (not shown).
• the first plug wrap has a basis weight of less than 50 gsm, more preferably between about 20 gsm and 40 gsm.
• the first plug wrap has a thickness of between 30 ⁇ m and 60 ⁇ m, more preferably between 35 ⁇ m and 45 ⁇ m.
• the first plug wrap is a nonporous plug wrap, for instance having a permeability of less than 100 Coresta units, for instance less than 50 Coresta units.
• the first plug wrap can be a porous plug wrap, for instance having a permeability of greater than 200 Coresta Units.
• the body of material 13 is formed from filamentary tow.
• the tow used in the body of material 13 has a denier per filament (d.p.f.) of 8.4 and a total denier of 21,000.
• the tow can, for instance, have a denier per filament (d.p.f.) of 9.5 and a total denier of 12,000.
• the tow comprises plasticised cellulose acetate tow.
• the plasticiser used in the tow comprises about 7% by weight of the tow.
• the plasticiser is triacetin.
• different materials can be used to form the body of material 13.
• the body 13 can be formed from paper, for instance in a similar way to paper filters known for use in cigarettes.
• the article may have a ventilation level of about 10% of the aerosol drawn through the article.
• the article can have a ventilation level of between 1% and 20% of aerosol drawn through the article, for instance between 1% and 12%. Ventilation at these levels helps to increase the consistency of the aerosol inhaled by the user at the mouth end 2b, while assisting the aerosol cooling process.
• the ventilation is provided directly into the mouthpiece 10 of the article 9.
• the ventilation is provided into the cooling section 12, which has been found to be particularly beneficial in assisting with the aerosol generation process.
• the ventilation is provided via perforations, in the present case formed as a single row of laser perforations, positioned 13 mm from the downstream, mouth-end 2b of the mouthpiece 10.
• two or more rows of ventilation perforations may be provided. These perforations pass though the tipping paper, second plug wrap and cooling section 12.
• the ventilation can be provided into the mouthpiece at other locations, for instance into the body of material 13 or tubular element 14.
• the article is configured such that the perforations are provided about 28mm or less from the upstream end of the article 9, preferably between 20mm and 28mm from the upstream end of the article 9.
• the apertures are provided about 25mm from the upstream end of the article.
• the body 2 has a cross sectional shape that is substantially the same as the cross sectional shape of the mouthpiece 10.
• the body 2 has a diameter that is substantially the same as a diameter of the mouthpiece 10.
• the body 2 may have a pressure drop of from about 0.001 mmWg/mm to about 70 mmWg/mm or from about 1 to about 40 mmWg/mm. In the present embodiment, the body 2 has a pressure drop of up to 20 mmWg/mm.
• the aerosol-generating material and articles disclosed herein may be for use in a non-combustible aerosol provision device comprising an aerosol generator for insertion into the aerosol-generating material.
• FIG. 2 the components of an exemplary non-combustible aerosol provision device 15 are shown in a simplified manner. Particularly, the elements of the non-combustible aerosol provision 15 are not drawn to scale in Figure 2 . Elements that are not relevant for the understanding of this embodiment have been omitted to simplify Figure 2 .
• the non-combustible aerosol provision device 15 comprises a housing 16 comprising an area 17 for receiving an article.
• the area is in the form of a cavity, open at the proximal end (or mouth end) for receiving an aerosol-generating article.
• the distal end of the cavity is spanned by an aerosol-generating assembly comprising an aerosol generator 18.
• the aerosol-generator is in the form of a resistively-heated elongate pin.
• the aerosol generator 18 is retained by a heater mount (not shown) such that an active heating area of the aerosol generator is located within the cavity.
• the active heating area of the aerosol generator 18 is positioned within the aerosol-generating section of an aerosol-generating article when the aerosol-generating article is fully received within the cavity.
• the aerosol generator 18 is configured for insertion into the aerosol-generating section of an aerosol-generating article.
• the aerosol generator 18 is shaped in the form of a pin terminating in a rounded point.
• the pin has a length dimension that is greater than its width dimension.
• an article 9 for use with the non-combustible aerosol provision device 15 is provided.
• the article 9 comprises an upstream end 2a adjacent to an aerosol-generating section 11.
• the article 9 also comprises a downstream end 2b distal from the aerosol-generating section 11 and adjacent mouthpiece 10.
• the aerosol-generating section 11 is configured to receive the aerosol generator 18 by moving the article 9 towards the aerosol-generator 18 of the device 15 and into the area 17.
• the aerosol generator 18 is received in the cavity 3a of the article 9.
• the wall of the cavity 3a comes into thermal proximity with the aerosol generator 803.
• the wall of the cavity 3a may be in direct contact with the aerosol generator 18.
• the aerosol-generator 18 When the aerosol-generator 18 is actuated it heats up and the body of aerosol-generating material 2 is warmed and volatile substances are generated or evolved. As a user draws on the mouthpiece 10, air is drawn into the article 9 and the volatile substances condense to form an inhalable aerosol. This aerosol passes through the mouthpiece 10 of the article 9 and into the user's mouth.
• Extruded rods were manufactured having the formulations set out in Table 1 and samples were prepared according to Table 2, where the added compounds were dissolved in 25 ⁇ l of water and injected into the aerosol generating material.
• Table 2 Sample Name Compound Added Inclusion Amount Control A (Rod A) N/A N/A Control B (Rod B) N/A N/A Sample A DAP 1% Sample B DAP 0.5%
• Sample A is based on Rod A and Control A which all contain tobacco material.
• Sample B is based on Rod B and Control B which all contain rooibos material.
• the samples were conditioned in ISO conditions (22 ⁇ 2°C/60 ⁇ 5% RH) in unsealed aluminium foil bags for a minimum of 48 hours and no more than 240 hours (10 days).
• the conditioned samples were smoked following the Canadian Extreme ("Intense") Conditions: 55 ⁇ 0.5 mL puff volume, 2.0 ⁇ 0.1 sec duration, and 30 ⁇ 1 sec interval, bell shaped puff profile, 0% vent blocking, 10 puffs per consumable.
• the consumables were smoked using a heated product device configured to initially rapidly heat the consumable to a temperature greater than 500 °C.
• the sample was acidified and extracted with toluene.
• the toluene extract was analysed by GC-MS under selective ion monitoring (SIM) mode using a diphenyl dimethyl polysiloxane capillary column or equivalent.

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• 2024
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