Combustion retarding material and uses thereof

Abstract

To provide: a combustion retarding material comprising a combustion retarding salt and an amorphous solid material; consumables comprising the combustion retarding material, and non-combustible aerosol provision systems comprising such consumables; and a method for manufacturing the combustion retarding material, and the use of a combustion retarding salt and an amorphous material to retard combustion.SOLUTION: In some embodiments, the combustion retarding salt is an alkali metal salt, optionally selected from the group consisting of sodium chloride, potassium chloride, sodium bromide, potassium bromide, and combinations thereof. The combustion retarding salt is incorporated in the amorphous solid material. The combustion retarding material comprises about 3 wt.% to about 60 wt.% of the combustion retarding salt (dry weight basis).SELECTED DRAWING: Figure 1

Description

Field

[0001] The present invention relates to a combustion suppression material containing a combustion suppression salt and an amorphous solid material. The present invention also relates to a consumable including the combustion suppression material, and a non-combustible aerosol supply system including such a consumable. The present invention further relates to a method for manufacturing the combustion suppression material, and the use of the combustion suppression salt and the amorphous material for suppressing combustion. Background

[0002] Smoking articles such as cigarettes and cigars burn tobacco during use to produce tobacco smoke. Attempts have been made to provide alternatives to these articles by creating products that release compounds without burning. Examples of such products are so-called "non-combustion heating type" products or tobacco heating devices or products that release compounds by heating but not burning the smoking material. Summary

[0003] According to a first aspect of the present invention, there is provided a combustion suppression material containing a combustion suppression salt and an amorphous solid material.

[0004] In some embodiments, the combustion suppression salt is an alkali metal salt optionally selected from the group consisting of sodium chloride, potassium chloride, sodium bromide, potassium bromide, and combinations thereof.

[0005] In some embodiments, the combustion suppression salt is incorporated into the amorphous solid material.

[0006] In some embodiments, the combustion suppression salt is applied to the amorphous solid material.

[0007] In some embodiments, the combustion suppression material contains about 3 wt% to about 60 wt% of the combustion suppression salt (on a dry weight basis).

[0008] According to a second aspect of the present invention, there is provided a consumable including the combustion suppression material according to the first aspect.

[0009] In some embodiments, the consumable further includes an aerosol generating material.

[0010] In some embodiments, the combustion suppression material at least partially surrounds the aerosol forming material.

[0011] In some embodiments, the consumable further comprises a wrapper.

[0012] In some embodiments, the combustion suppression material is distributed within the aerosol forming material.

[0013] In some embodiments, the aerosol forming material comprises a tobacco material. In some embodiments, the tobacco material is cut-rag tobacco.

[0014] In some embodiments, the consumable comprises a binder.

[0015] In some embodiments, the consumable is rod-shaped.

[0016] According to a third aspect of the present invention, there is provided a non-combustible aerosol supply system comprising a consumable according to the second aspect.

[0017] According to a fourth aspect of the present invention, there is provided a method of manufacturing a material according to the first aspect, wherein the combustion suppression salt is incorporated into or added to the amorphous solid material.

[0018] In some embodiments, a solution or suspension comprising the combustion suppression salt is applied to the amorphous solid material.

[0019] In some embodiments, the combustion suppression salt is added during the manufacture of the amorphous solid material.

[0020] According to a fifth aspect of the present invention, there is provided the use of a material according to the first aspect for suppressing combustion of a consumable for use in a non-combustible aerosol supply system.

[0021] Embodiments of the present invention are described herein by way of example only with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022]

Figure 1

Figure 2

Figure 3

[0023] The present invention relates to a combustion suppression material comprising at least one combustion suppression salt and an amorphous solid material.

[0024] Combustion-inhibiting salt As used herein, a salt is a compound consisting of an ionic assembly of a cation and an anion. The salts used herein are salts whose anions and / or cations can be effective in suppressing combustion. In some embodiments, the salt is an inorganic salt.

[0025] In some embodiments, the salt is a halide salt, i.e., having a halide anion. In some embodiments, the salt is a chloride salt or a bromide salt. The presence of high concentrations of chloride or bromide has been shown to suppress combustion, as further discussed below.

[0026] In some embodiments, the salt can be an alkali metal salt, i.e., having an alkali metal cation. In some embodiments, the salt has an alkaline earth metal cation. In some embodiments, the salt has a zinc cation, or an iron cation such as a trivalent iron or divalent iron cation. In some embodiments, the salt has an ammonium cation or a phosphonium cation.

[0027] In some embodiments, the salt may be an alkali metal halide such as sodium chloride or potassium chloride. The salt may be an alkaline earth metal halide such as magnesium chloride or calcium chloride. The salt may be another metal halide such as zinc chloride or sodium bromide.

[0028] In some embodiments, the salt has a carboxylic acid anion. For example, the salt may be an alkali metal carboxylate such as potassium citrate, potassium succinate, potassium malate, potassium acetate, potassium tartrate, potassium oxalate, sodium citrate, sodium succinate, sodium acetate, or sodium malate.

[0029] In other embodiments, the salt has an anion selected from a borate anion, a carbonate anion, a phosphate anion, a sulfate anion, or a sulfamate anion.

[0030] Factors that can affect the choice of salt include, for example, a melting point that is preferably at least 450 °C. In some embodiments, the salt is water-soluble. In some embodiments, the salt is selected to provide a desired pH to the material being added. In some embodiments, the salt does not significantly change the pH of the material.

[0031] In some embodiments, the salt is sodium chloride (NaCl). It has been demonstrated that amorphous solid materials with a high chloride content are difficult to burn. Further, sodium chloride is neutral, highly soluble, and does not affect the pH of the amorphous solid material.

[0032] The combustion-inhibiting salt may be one salt disclosed herein or known in the art, or any number of combinations of salts, and is referred to herein as the "combustion-inhibiting salt." The combustion-inhibiting salt(s) can advantageously be selected to impart desired characteristics to the combustion-inhibiting material.

[0033] In some embodiments, the combustion suppressing salt selected may have one or more advantageous properties such as being inert, solubility in the precursor liquid, solubility or distribution in the amorphous solid or in the precursor material relative to the amorphous solid, density, or other properties known in the art.

[0034] In some embodiments, the combustion suppressing salt comprises, consists essentially of, or consists of sodium chloride, potassium chloride, sodium bromide, and / or potassium bromide.

[0035] Depending on the desired combustion suppressing properties or other physical properties, the salt component may be in free base form, salt form, or as a complex, or as a solvate. The combustion suppressing salt may have any density and any crystal structure.

[0036] In some embodiments, the combustion suppressing salt is incorporated or added into an amorphous solid material dissolved in a solvent or liquid carrier. In some embodiments, the combustion suppressing salt is suspended in the liquid carrier. The solvent or liquid carrier may be aqueous or an organic liquid, and may be polar or non-polar depending on its intended use.

[0037] The liquid carrier or precursor solvent can be easily removed during the manufacture of the combustion suppressing material and can be advantageously selected such that the combustion suppressing salt remains in or on the amorphous solid material.

[0038] In some embodiments, the liquid carrier is a mixture of liquids including an aqueous liquid (water) and a non-aqueous liquid (e.g., glycerol). Upon removal of water after application of the salt, glycerol is retained in the amorphous solid material, provides flexibility, and aids in aerosol formation upon heating.

[0039] Amorphous solid material The combustion suppressing material includes an "amorphous solid material", which may alternatively be referred to as an "integrated solid" (i.e., non-fibrous). In some embodiments, the amorphous solid material may be a dry gel. An amorphous solid is a solid material that can hold some fluid such as a liquid within it.

[0040] The amorphous solid material may contain a gelling agent (all calculated on a dry weight basis) from about 0.1 wt%, 0.5 wt%, 1 wt%, 5 wt%, 10 wt%, 15 wt%, 20 wt% or 25 wt% to about 60 wt%, 50 wt%, 45 wt%, 40 wt% or 35 wt%. For example, the amorphous solid may contain 1 to 50 wt%, 5 to 45 wt%, 10 to 40 wt% or 20 to 35 wt% of the gelling agent. In some embodiments, the gelling agent includes a hydrophilic colloid.

[0041] In some embodiments, the gelling agent includes one or more compounds selected from the group consisting of alginate, pectin, starch (and derivatives), cellulose (and derivatives), rubbers, silica or silicone compounds, clays, polyvinyl alcohol, and combinations thereof. For example, in some embodiments, the gelling agent includes one or more of alginate, pectin, hydroxyethyl cellulose, hydroxypropyl cellulose, carboxymethyl cellulose, pullulan, xanthan gum, guar gum, carrageenan, agarose, acacia gum, fumed silica, PDMS, sodium silicate, kaolin, and polyvinyl alcohol. In some cases, the gelling agent includes alginate and / or pectin and may be combined with a curing agent (such as a calcium source) during the formation of the amorphous solid. In some cases, the amorphous solid may include calcium-crosslinked alginate and / or calcium-crosslinked pectin.

[0042] In some embodiments, the gelling agent includes alginate. In a preferred embodiment, the alginate is present in the amorphous solid in an amount of 1 to 30 wt% (calculated on a dry weight basis) of the amorphous solid. In some embodiments, the alginate is the only gelling agent present in the amorphous solid. In other embodiments, the gelling agent includes at least one additional gelling agent such as alginate and pectin.

[0043] In some embodiments, the combustion suppression material may include an amorphous solid that may contain a gelling agent including carrageenan.

[0044] Preferably, the amorphous solid may contain from about 0.1 wt%, 0.5 wt%, 1 wt%, 3 wt%, 5 wt%, 7 wt%, 10 wt%, 15 wt%, 20 wt%, 25 wt%, 30 wt%, 35 wt% or 40% to about 75 wt%, 70 wt%, 65 wt%, 60 wt%, 55 wt% or 50 wt% of the aerosol-forming material (all calculated on a dry weight basis). For example, the amorphous solid may contain 5-10 wt%, 20-70 wt%, 40-60 wt% or 50-60 wt% of the aerosol-forming material.

[0045] As used herein, the aerosol-forming material may include one or more of glycerin, glycerol, propylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, 1,3-butylene glycol, erythritol, meso-erythritol, ethyl vanillate, ethyl laurate, diethyl suberate, triethyl citrate, triacetin, diacetin mixture, benzyl benzoate, benzyl phenylacetate, tributyrin, lauryl acetate, lauric acid, myristic acid, and propylene carbonate.

[0046] In some cases, the aerosol-forming material includes one or more compounds selected from erythritol, propylene glycol, glycerol, vegetable glycerin (VG), triacetin, sorbitol and xylitol. In some cases, the aerosol-forming material contains glycerol, consists essentially of glycerol, or consists of glycerol.

[0047] The aerosol-forming material can act as a plasticizer. For example, the amorphous solid material can contain from 0.5 to 40 wt%, from 3 to 35 wt% or from 10 to 25 wt% of the aerosol-forming material. In some cases, the aerosol-forming material can include one or more compounds selected from erythritol, propylene glycol, glycerol, triacetin, sorbitol and xylitol. In some cases, the aerosol-forming material contains glycerol, consists essentially of glycerol, or consists of glycerol. The inventors have demonstrated that when the content of the plasticizer is too high, the amorphous solid material can absorb water and result in a material that does not produce an appropriate consumption experience during use. The inventors have demonstrated that when the plasticizer content is too low, the amorphous solid material is brittle and can be easily broken. The plasticizer content defined herein provides the flexibility of the amorphous solid that enables the amorphous solid sheet to be wound onto a bobbin, which is useful in the manufacture of aerosol-generating articles.

[0048] In some embodiments, the amorphous solid material is a hydrogel and contains less than about 20 wt% water calculated on a wet weight basis. In some cases, the hydrogel may contain less than about 15 wt%, 12 wt% or 10 wt% water calculated on a wet weight basis. In some cases, the hydrogel may contain at least about 1 wt%, 2 wt% or at least about 5 wt% water (WWB).

[0049] Combustion-inhibiting material In some embodiments, the combustion-inhibiting material comprises a combination of an amorphous solid material and a combustion-inhibiting salt as discussed herein.

[0050] In some embodiments, the ratio of the combustion suppression salt in the combustion suppression material can be advantageously selected for its combustion suppression properties. Preferably, the combustion suppression material can contain from about 3 wt%, 15 wt%, 20 wt%, 25 wt%, 30 wt%, 35 wt%, 40 wt%, 45 wt% or from about 50 wt% to about 90 wt%, 85 wt%, 80 wt%, 75 wt%, 70 wt%, 65 wt% or up to about 60 wt% of the combustion suppression salt (all calculated on a dry weight basis).

[0051] In some embodiments, the combustion suppression salt is incorporated into an amorphous solid material. This means that the combustion suppression salt is contained within the amorphous solid composition. For example, during the preparation of the amorphous solid material, the liquid precursor material of the amorphous solid material is mixed with the combustion suppression salt. Thereby, the combustion suppression salt is distributed throughout the resulting amorphous solid material. In some embodiments, the distribution of the combustion suppression salt is uniform throughout the amorphous solid, which can be advantageous because the combustion suppression effect is effective throughout the material. The combustion suppression salt may be added in the form of a solution or suspension. Alternatively, the combustion suppression salt may be added to the liquid precursor material in solid form, such as in particulate form like powder.

[0052] In other embodiments, the combustion suppression salt is added to or applied to the amorphous solid material. For example, when the amorphous solid material is prepared, a solution or suspension containing the combustion suppression salt is applied to the surface of the amorphous solid material to deposit the combustion suppression salt on the surface of the amorphous solid material.

[0053] In some embodiments, the amorphous solid material is in contact with a solution or suspension containing the combustion suppression salt. This technique can be used to form a coating of salt on the surface of the amorphous material. This technique can be repeated multiple times to form one or more layers of the combustion suppression salt. In some embodiments, different combustion suppression salts may be incorporated into one or more coatings and / or the amorphous solid material. Thereby, a specific combustion suppression profile can be achieved.

[0054] In some embodiments, the solution or suspension of the combustion-inhibiting salt may be sprayed directly onto the amorphous solid. This is advantageous because the layer of inorganic solid can be uniformly distributed across the amorphous solid. This process may also be repeated to provide the desired thickness of the layer of combustion-inhibiting salt, which is a further advantage. The layer of combustion-inhibiting salt may contain the same salt or different salts. Additionally, the ratio of the combustion-inhibiting salt in the carrier liquid or solvent may be varied to impart desired properties to the layer of amorphous solid material. In such embodiments, the ratio of the combustion-inhibiting salt in the solvent or carrier liquid may contain from about 1 wt%, 5 wt%, 10 wt%, 15 wt%, 20 wt% or 25 wt% to about 60 wt%, 50 wt%, 45 wt%, 40 wt% or 35 wt% of the combustion-inhibiting salt (all calculated on a dry weight basis).

[0055] In some embodiments, the combustion-inhibiting material is: about 1 to about 50 wt% of a gelling agent; about 0.1 to about 50 wt% of an aerosol-forming agent; and about 3 to about 90 wt% of a combustion-inhibiting salt wherein; these weights are calculated on a dry weight basis.

[0056] In particularly illustrative embodiments, the combustion-inhibiting material is: about 20 to about 30 wt% of a gelling agent; about 20 to about 30 wt% of an aerosol-forming agent; and about 50 to about 60 wt% of a combustion-inhibiting salt wherein; these weights are calculated on a dry weight basis.

[0057] In another example, the combustion-inhibiting material is: 43 g of alginate (2.7%) 100 g of sodium chloride (6.3%) 50 g of glycerol (3.1%) 1400 ml of water (87.9%) formed from a slurry containing.

[0058] When this slurry is dried, the composition of the combustion suppression material is as follows: alginate (22.3%); sodium chloride (52.1%); and 50 g of glycerol (25.6%).

[0059] In some cases, the combustion suppression material may consist essentially of, or consist of, a combustion suppression salt, a gelling agent, an aerosol forming agent, and water.

[0060] The inventors have advantageously found that improved articles can be manufactured including a combustion suppression material comprising a combustion suppression salt and an amorphous solid, and that the properties (such as density) and specifications (such as thickness, length, and cut width) of the material fall within the ranges set forth herein.

[0061] In some cases, the combustion suppression material may have a thickness of from about 0.015 mm to about 1.5 mm, preferably from about 0.05 mm to about 1.5 mm or 0.05 mm to about 1 mm. Preferably, the thickness may be in the range of about 0.1 mm or 0.15 mm to about 1 mm, 0.5 mm or 0.3 mm. The combustion suppression material may include two or more layers, and the thickness described herein refers to the total thickness of these layers.

[0062] In some embodiments where the combustion suppression material includes a combustion suppression salt as a coating on an amorphous solid, the coating layer of the combustion suppression salt may have a thickness of from about 0.01 mm to about 0.1 mm. The combustion suppression salt coating may include two or more layers, and the thickness described herein refers to the total thickness of these layers.

[0063] The thickness of the materials or layers discussed herein can be measured using a microscope such as a scanning electron microscope (SEM) known to those skilled in the art, or any other suitable technique known to those skilled in the art.

[0064] The inventors have demonstrated that when the combustion suppression material is too thick, the heating efficiency may be impaired. This can have an adverse effect on power consumption during use, for example, the power consumption for releasing fragrance from an amorphous solid. Conversely, when the combustion suppression material is too thin, manufacturing and handling can be difficult; very thin materials can be more difficult to cast, are prone to breakage during use, and may impair aerosol formation. In some cases, the individual flakes or pieces of the combustion suppression material have a minimum thickness of about 0.015 mm over that area. In some cases, the individual flakes or pieces of the amorphous solid have a minimum thickness of about 0.05 mm or about 0.1 mm over that area. In some cases, the individual flakes or pieces of the amorphous solid have a maximum thickness of about 1.0 mm over that area. In some cases, the individual flakes or pieces of the combustion suppression material have a maximum thickness of about 0.5 mm or about 0.3 mm over that area.

[0065] To avoid doubt, when referring herein to areal density, this refers to the average areal density calculated for a given flake, piece or sheet of the combustion suppression material, and is calculated by measuring the surface area and weight of a given flake, piece or sheet of the combustion suppression material.

[0066] In some cases, the thickness of the combustion suppression material may vary by 25%, 20%, 15%, 10%, 5% or 1% or less over that area.

[0067] In some embodiments where the combustion suppression material is in the form of a sheet, the sheet can have any suitable areal density such as from about 30 g / m 2 to about 150 g / m 2 . In some cases, the sheet is from about 55 g / m 2 to about 135 g / m 2 , or from about 80 to about 120 g / m 2 , or from about 70 to about 110 g / m 2 , or more particularly from about 90 to about 110 g / m 2 , or preferably about 100 g / m 2may have a mass per unit area. When the combustion suppression material is included in the aerosol generating article as a shredded sheet, such an areal density may be particularly suitable (as further described herein). In some cases, the sheet may have a mass per unit area of about 30 - 70 g / m 2 , 40 - 60 g / m 2 , or 25 - 60 g / m 2 and can be used to wrap aerosolizable materials such as tobacco.

[0068] The density of the combustion suppression material affects the rate at which heat conducts through the material, and at lower densities, for example, densities less than 700 mg / cc, heat conducts more slowly through the material, thus allowing for a more sustained release of the aerosol. The density of the combustion suppression salt also affects the rate of heat conduction, similar to the flammability of the aforementioned consumables.

[0069] In some examples, such as where the combustion suppression material does not contain a filler, the combustion suppression material may have a tensile strength of 200 N / m - 400 N / m, or 200 N / m - 300 N / m, or about 250 N / m. Such a tensile strength may be particularly suitable for embodiments where the combustion suppression material is formed as a sheet and then shredded and incorporated into the consumable.

[0070] In some embodiments, such as where the combustion suppression material is used in the form of a sheet, a filler is included to increase the tensile strength. In some embodiments, the combustion suppression material may have a tensile strength of at least about 1500 or at least about 2000 N / m and / or up to about 5000 N / m. In some embodiments, the tensile strength may be about 3000 - about 4000 N / m. Such a tensile strength may be particularly suitable for embodiments where the combustion suppression material is in the form of a sheet and is incorporated into the consumable, for example, as a wrapper.

[0071] In some embodiments, the combustion suppression material is a hydrogel and includes an amorphous solid containing less than about 20 wt% water calculated on a wet weight basis. Optionally, the hydrogel may contain less than about 15 wt%, 12 wt% or 10 wt% water calculated on a wet weight basis. Optionally, the hydrogel may contain at least about 1 wt%, 2 wt% or at least about 5 wt% water.

[0072] Additional components of the combustion-inhibiting material In some embodiments, the combustion suppression material may include additional components described herein. The additional components may be included in any part of the combustion suppression material. In some embodiments, the additional components included in the amorphous solid material are thus distributed within the combustion suppression material.

[0073] In some embodiments, the combustion suppression material includes one or more other functional materials that may include one or more of a pH adjuster, a colorant, a preservative, a binder, a filler, a stabilizer, and / or an antioxidant.

[0074] In some embodiments, the combustion suppression material includes a fragrance. Thus, the combustion suppression material has the advantage of preventing the combustion of the flavorant and delivering a desired flavor.

[0075] In some embodiments, the combustion suppression material may include up to about 80 wt%, 70 wt%, 60 wt%, 55 wt%, 50 wt% or 45 wt% of the fragrance. Optionally, the combustion suppression material may include at least about 0.1 wt%, 1 wt%, 10 wt%, 20 wt%, 30 wt%, 35 wt% or 40 wt% of the fragrance (all calculated on a dry weight basis).

[0076] For example, the combustion suppression material may include 1 - 80 wt%, 10 - 80 wt%, 20 - 70 wt%, 30 - 60 wt%, 35 - 55 wt% or 30 - 45 wt% of the fragrance. Optionally, the fragrance includes menthol, consists essentially of menthol, or consists of menthol.

[0077] In some embodiments, the flavorant is included in the aerosol-forming material. The fragrance imparted to the amorphous solid material is more stably retained and can provide a more consistent fragrance profile among the consumables disclosed herein.

[0078] As used herein, the terms "flavor" and "flavoring" refer to materials that can be used to create a desired flavor, scent, or other sensory stimulation in products for adult consumers, where permitted by local regulations. They include naturally occurring flavor materials, botanical substances, extracts of botanical substances, synthetically derived materials, or combinations thereof (e.g., tobacco, cannabis, licorice, hydrangea, eugenol, hinoki leaf, chamomile, fenugreek, clove, maple, matcha, menthol, Japanese mint, aniseed (anis), cinnamon, turmeric, Indian spices, Asian spices, herbs, wintergreen, cherry, berry, redberry, cranberry, peach, apple, orange, mango, clementine, lemon, lime, tropical fruit, papaya, daikon, grape, durian, dragon fruit, cucumber, blueberry, mulberry, citrus, damson, bourbon, scotch, whiskey, gin, tequila, rum, spearmint, peppermint, lavender, aloe vera, cardamom, celery, cascarilla, nutmeg, frankincense, bergamot, geranium, cart, nasturtium, kinnow, shisha, pine, honey extract, rose oil, vanilla, lemon oil, orange oil, orange flower, cherry blossom, cassia, caraway, cognac, jasmine, ylang ylang, sage, perilla, wasabi, pepper, ginger, coriander, coffee, asa, mint oil of any species of the genus Mentha, eucalyptus, daikon radish, cocoa, lemongrass, rooibos, ama, ginkgobiloba), hibiscus, hibiscus, ginkgo, mate, orange peel, rose, tea such as green tea or black tea, thyme, vitamin C, nasturtium flower, basil, bay leaf, cumin, oregano, paprika, rosemary, saffron, lemon peel, perilla, sesame, turmeric, coriander leaf, ginger, blackcurrant, pansy, mustard, niku-zuku flower, damien, marjoram, olive, lemon balm, lemon basil, Japanese leek, dwarf umbellifer, verbena, tarragon, limonene, thymol, camphor), flavor enhancer, bitter receptor site blocker, sensory receptor site activator or stimulant, sugar and / or alternative sugar (e.g., sucralose, acesulfame potassium, aspartame, saccharin, cyclamate, lactose, sucrose, glucose, fructose, sorbitol, or mannitol), and may include other additives such as charcoal, chlorophyll, minerals, plant substances, or breath fresheners. They may be imitation, synthetic or natural raw materials or blends thereof. They may be in any suitable form, such as a liquid such as an oil, a solid such as a powder, or a gas.

[0079] In some embodiments, the fragrance includes menthol, spearmint and / or peppermint. In some embodiments, the fragrance includes fragrance components of cucumber, blueberry, citrus and / or redberry. In some embodiments, the fragrance includes eugenol. In some embodiments, the fragrance includes fragrance components extracted from tobacco. In some embodiments, the fragrance includes fragrance components extracted from cannabis.

[0080] In some embodiments, the fragrance is generally intended to achieve a chemically induced and perceived somatosensory stimulus by stimulating the fifth cranial nerve (trigeminal nerve), in addition to or instead of the nerves of smell or taste, and may be perceived by the five senses, which may include agents that produce heat, cooling, tingling, or numbness effects. Suitable heat effect agents may include, but are not limited to, vanillyl ethyl ether, and suitable cooling agents may include, but are not limited to, eucalyptol, WS-3.

[0081] The amorphous solid can be made from a gel, which may additionally contain a solvent present in an amount of 0.1 to 50 wt%. However, the inventors have demonstrated that containing a solvent in which the fragrance is soluble can reduce gel stability and that the fragrance may crystallize from the gel. Thus, in some cases, the gel does not contain a solvent in which the fragrance is soluble. In some embodiments, the solvent may be removed by evaporation before containing the fragrance.

[0082] In some cases, the combustion suppressant material may additionally contain an emulsifier that emulsifies the molten fragrance during production. For example, the combustion suppressant material may contain about 5 wt% to about 15 wt% of an emulsifier (calculated on a dry weight basis), preferably about 10 wt% of an emulsifier. The emulsifier may include gum acacia (arabic gum) or guar gum.

[0083] In some embodiments, the emulsifier is included in the amorphous solid material.

[0084] In some embodiments, when permitted by local regulations, the combustion suppressant material may contain an active substance. In some embodiments, the combustion suppressant material does not contain an active substance.

[0085] In some embodiments, the active substance is included in the amorphous solid material.

[0086] As used herein, the active substance can be a physiologically active material and is a material intended to achieve or enhance a physiological response. The active substance may be selected, for example, from nutraceuticals, nootropics, and psychoactive drugs. The active substance may be of natural origin or obtained synthetically. The active substance may include, for example, nicotine, caffeine, taurine, theine, vitamins such as B6 or B12 or C, melatonin, cannabinoids, or components, derivatives, or combinations thereof. The active substance may include one or more components, derivatives, or extracts of tobacco, cannabis, or other plant substances.

[0087] In some embodiments, the active substance includes nicotine. In some embodiments, the active substance includes caffeine, melatonin, or vitamin B12.

[0088] As shown herein, the active substance may include one or more of the components, derivatives, or extracts of cannabis, such as one or more of cannabinoids or terpenes.

[0089] As shown herein, the active substance may include one or more of plant substances or their constituents, derivatives or extracts, or may be derived therefrom. As used herein, the term "plant substance" includes any material derived from plants, including but not limited to extracts, leaves, bark, fibers, stems, roots, seeds, flowers, fruits, pollen, pods, husks, etc. Alternatively, the material may naturally occur in plant substances and contain active compounds obtained synthetically. The material may be in the form of a liquid, gas, solid, powder, dust, crushed particles, granules, pellets, shreds, chips, sheets, etc. Examples of plant substances are tobacco, eucalyptus, daikon radish, hemp, cocoa, cannabis, radish, lemongrass, peppermint, spearmint, rooibos, chamomile, flax, ginger, ginkgo, purslane, hibiscus, ginkgo biloba, licorice, matcha, yerba mate, orange peel, papaya, rose, sage, green tea or black tea, thyme, clove, cinnamon, coffee, aniseed, basil, bay leaf, cardamom, coriander, cumin, nutmeg, oregano, paprika, rosemary, saffron, lavender, lemon peel, perilla, vitamin C, chrysanthemum flower, vanilla, wintergreen, perilla oil, turmeric, curcumin, ginger, white peony, coriander leaf, bergamot, orange flower, kinkan, blackcurrant, dandelion, mustard, nasturtium flower, damiana, marjoram, olive, lemon balm, lemon basil, Japanese leek, dwarf radish, vervain, tarragon, geranium, mulberry, burdock, theanine, theacrine, maca, ashwagandha, damiana, guarana, chlorophyll, baobab or any combination thereof.The huckleberry can be selected from the following huckleberry variants: Mentha Arventis, Mentha c.v., Mentha niliaca, Mentha piperita, Mentha piperita citrata c.v., Mentha piperita c.v., Mentha spicata crispa, Mentha cardifolia, Mentha longifolia, Mentha suaveolens variegata, Mentha pulegium, Mentha spicata c.v. and Mentha suaveolens.

[0090] In some embodiments, the active substance comprises or is derived from one or more of a plant substance or its constituents, derivatives or extracts, and the plant substance is tobacco.

[0091] In some embodiments, the active substance comprises or is derived from one or more of a plant substance or its constituents, derivatives or extracts, and the plant substance is selected from eucalyptus, camellia, cocoa and hemp.

[0092] In some embodiments, the active substance comprises or is derived from one or more of a plant substance or its constituents, derivatives or extracts, and the plant substance is selected from rooibos and camellia.

[0093] In some cases, the total content of the active substance and / or fragrance in the combustion suppression material may be at least about 0.1 wt%, 1 wt%, 5 wt%, 10 wt%, 20 wt%, 25 wt% or 30 wt%. In some cases, the total content of the active substance and / or fragrance may be less than about 90 wt%, 80 wt%, 70 wt%, 60 wt%, 50 wt% or 40 wt% (all calculated on a dry weight basis).

[0094] In some embodiments, where local regulations permit, the combustion suppression material additionally contains plant material or tobacco material and / or nicotine.

[0095] In some cases, the combustion suppression material may contain 5 to 60 wt% (calculated on a dry weight basis) of plant material or tobacco material and / or nicotine and / or tobacco extract. In some cases, the combustion suppression material may contain from about 1 wt%, 5 wt%, 10 wt%, 15 wt%, 20 wt% or 25 wt% to about 70 wt%, 60 wt%, 50 wt%, 45 wt%, 40 wt%, 35 wt%, or 30 wt% (calculated on a dry weight basis) of plant material or tobacco material and / or nicotine and / or tobacco extract.

[0096] In some cases, the combustion suppression material may contain 5 to 60 wt% (calculated on a dry weight basis) of plant material or tobacco material and / or nicotine and / or tobacco extract. In some cases, the combustion suppression material may contain from about 1 wt%, 5 wt%, 10 wt%, 15 wt%, 20 wt% or 25 wt% to about 70 wt%, 60 wt%, 50 wt%, 45 wt%, 40 wt%, 35 wt%, or 30 wt% (calculated on a dry weight basis) of plant material or tobacco material and / or nicotine and / or tobacco extract. In a preferred embodiment of the present invention, the combustion suppression material may contain 5 to 60 wt% (calculated on a dry weight basis) of plant material or tobacco material and / or nicotine and / or tobacco extract.

[0097] In some cases, there may be no nicotine in the combustion suppression material other than that derived from tobacco material or tobacco extract.

[0098] In some embodiments, the combustion suppressant material does not contain tobacco material but contains nicotine. In such cases, the combustion suppressant material may contain from about 1 wt%, 2 wt%, 3 wt% or 4 wt% to about 20 wt%, 18 wt%, 15 wt% or 12 wt% (calculated on a dry weight basis) of nicotine. For example, the combustion suppressant material may contain 1 - 20 wt%, 2 - 18 wt% or 3 - 12 wt% of nicotine.

[0099] In some embodiments, the combustion suppressant material contains a filler. In some embodiments, the filler is included in the amorphous solid material.

[0100] In some embodiments, the combustion suppressant material contains less than 60 wt% of the filler, such as 1 wt% - 60 wt%, or 5 wt% - 50 wt%, or 5 wt% - 30 wt%, or 10 wt% - 20 wt%, etc.

[0101] In other embodiments, the combustion suppressant material contains less than 20 wt%, preferably less than 10 wt% or less than 5 wt% of the filler. In some cases, the amorphous solid material contains less than 1 wt% of the filler and, in some cases, does not contain the filler.

[0102] When present, the filler may include one or more inorganic filler materials such as suitable inorganic adsorbents like calcium carbonate, perlite, vermiculite, diatomaceous earth, colloidal silica, magnesium oxide, magnesium sulfate, magnesium carbonate, and molecular sieves, in addition to the combustion suppressant salt(s). The filler may include one or more organic filler materials such as wood pulp, cellulose, and cellulose derivatives. In certain cases, the combustion suppressant material does not contain calcium carbonate such as chalk.

[0103] In certain embodiments that include a filler, the filler is fibrous. For example, the filler may be a fibrous organic filler material such as wood pulp, hemp fiber, cellulose, or a cellulose derivative. Without wishing to be bound by theory, it is believed that including a fibrous filler in the combustion suppression material can increase the tensile strength of the material.

[0104] In some embodiments, the combustion suppression material does not include tobacco fiber.

[0105] In some examples, such as where the combustion suppression material includes a filler, the combustion suppression material may have a tensile strength of 600 N / m to 900 N / m, or 700 N / m to 900 N / m, or approximately 800 N / m. Such a tensile strength may be particularly suitable for embodiments where the combustion suppression material is included in an aerosol generating article as a wound sheet, preferably in the form of a tube or rod.

[0106] Consumable A consumable is an article that includes an aerosol generating material, a part or all of which is intended to be consumed during use by a user. The consumable may comprise one or more other components such as a storage area for the aerosol generating material, a transfer element for the aerosol generating material, an aerosol generating area, a container, a wrapper, a mouthpiece, a filter, and / or an aerosol modifier. The consumable may also comprise an aerosol generator such as a heater that generates heat during use to generate an aerosol from the aerosol generating material. The heater may include, for example, a combustible material, a material heatable by electrical conduction, or a susceptor. The consumable may be of any shape or size suitable for a smoking device. In a preferred embodiment of the present invention, the consumable is in the shape of a rod.

[0107] In the present invention, the consumable includes the combustion suppression material disclosed herein. In some fields, it is necessary for the consumable to be resistant to combustion, which can be enhanced by the inclusion of the combustion suppression material.

[0108] In some embodiments, the inclusion of a combustion suppression material in the consumable means that the consumable need not include foil. The consumable may include a metallic foil such as aluminum foil as part of a wrapper that surrounds the aerosol-forming material to suppress or prevent combustion.

[0109] In some embodiments, the combustion suppression material surrounds at least a portion of the aerosol-forming material. For example, the wrapper that surrounds the aerosol-forming material may comprise or consist of a combustion suppression material. The combustion suppression material may be in the form of a sheet. One or more layers of the combustion suppression material may surround the aerosol-forming material.

[0110] In some embodiments, the combustion suppression material surrounds the entire aerosol-forming material. When the aerosol-forming material is provided in the form of a rod, the combustion suppression material not only surrounds the length of the rod of aerosol-forming material but also encircles the ends of the rod. This may be in the form of a sheet that is folded at the ends of the rod or extends beyond the ends, or in the form of a plug of combustion suppression material that is inserted into the ends of the rod. This prevents the aerosol-forming material from burning if an attempt is made to light a consumable such as a cigarette.

[0111] As described herein, the rod of aerosol-forming material may have a first end and a second end. In use, the rod typically has a downstream end that is connected to or includes a mouthpiece and / or filter, and an upstream end, also referred to as a distal end.

[0112] In other embodiments, the combustion suppression material is supplied locally, for example, to the distal end of a rod of the aerosol-forming material, and there is little or no combustion suppression material supplied to other parts of the consumable. In some embodiments, the combustion suppression material is supplied at a greater concentration at a location closer to the distal end. In some embodiments, the combustion suppression material is supplied only at a location close to the distal end. The region where the combustion suppression material is supplied can be up to about 5%, up to about 10%, up to about 20%, up to about 30%, up to about 40%, up to about 50%, or up to about 60% of the rod from the distal end. In some embodiments, the combustion suppression material is disposed at the distal end of the rod in the form of a shredded sheet. In some embodiments where the combustion suppression material is shredded, the combustion suppression material may be dispersed in, mixed with, or otherwise combined with the aerosol-forming material. Alternatively, the shredded combustion suppression material may surround the aerosol-forming material. In other embodiments, the shredded combustion suppression material is not mixed with the aerosol-forming material and may be in the form of a plug. The method of shredding the combustion suppression material has the advantage of being particularly suitable for incorporation into the rod.

[0113] In some embodiments where the combustion suppression material is disposed at the distal end of the rod, the combustion suppression material may be in the form of a collected sheet. In some embodiments, the collected sheet is in the form of a plug. The method of collecting the sheet has the advantage of reducing the movement of salt onto the rod. The plug of the combustion suppression material may also be formed as a solid mass comprising a combustion suppression salt and an amorphous solid material.

[0114] In some embodiments, some of the aerosol - generating material, such as tobacco, may be replaced with a combustion - suppressing material. In some embodiments, between about 5% and about 15%, or between about 8% and about 12% by weight of the aerosol - generating material may be replaced with a combustion - suppressing material. The combustion - suppressing material may be in the form of a plug. This embodiment enjoys the advantage of preventing the aerosol - generating material from burning while maintaining the overall size of the consumable or the rod when attempting to light a consumable such as a cigarette. This is particularly beneficial when the rod is used as a consumable in an aerosol - generating device and can be replaced with an alternative consumable(s) that is already produced.

[0115] In some embodiments, the consumable may comprise at least one ventilation area configured to allow external air to flow into the article. The ventilation area may comprise one or more ventilation holes or perforations cut into the package to allow ambient air to be drawn into the article. This can affect the pressure drop and enhance the user experience of the flavor characteristics of the aerosol - generating material. The location of these holes and / or perforations can be between about 0.5 mm and about 10 mm, between about 1 mm and about 4 mm, or between about 4 mm and about 8 mm from the distal end of the rod. The holes and / or perforations may be of any suitable size and / or number to conform the air flow. The size, number, and location of the holes and / or perforations on the package can be selected to provide an appropriate air flow. For example, a greater number and larger size of holes and / or perforations can introduce more air into the rod, increase the air flow, and thus result in an appropriate pressure drop.

[0116] In other embodiments, the combustion - suppressing material is mixed with the aerosol - generating material. In such embodiments, the combustion - suppressing material is in the form of shredded or cut sheets and can be mixed with the aerosol - generating material.

[0117] The presence of the combustion - suppressing material distributed within the aerosol - generating material can reduce the tendency of the aerosol - generating material to burn when exposed to high temperatures and / or flames.

[0118] In an exemplary embodiment, the consumable includes a blend of an aerosol-forming material and a combustion-inhibiting material. For example, the blend includes the aerosol-forming material in an amount of 50% to 98%, such as 80% to 95%, and the aerosol-forming material is, for example, cut-rag tobacco and shredded amorphous solid material in an amount of 2% to 50%, such as 5% to 20%.

[0119] In some embodiments, when the combustion-inhibiting material in the form of a sheet is shredded, an equal-division mixing of the aerosol-forming material and the combustion-inhibiting material can be achieved. The cutting width of the shredded combustion-inhibiting material is preferably between 0.75 mm and 2 mm, such as between 1 mm and 1.5 mm. The strands of the combustion-inhibiting material formed by shredding may be cut in the width direction, in addition to the cutting width, to define the cutting length of the combustion-inhibiting material being shredded, for example, in a cross-cut shredding process. The cutting length of the shredded combustion-inhibiting material is preferably at least 5 mm, such as at least 10 mm, or at least 20 mm. The cutting length of the shredded combustion-inhibiting material may be less than 60 mm, less than 50 mm, or less than 40 mm. In some embodiments, in order to achieve an equal-division mixing of the shredded combustion-inhibiting material and the cut-rag tobacco, the cutting length of the shredded combustion-inhibiting material is preferably non-uniform. Although referred to as the cutting length, the length of the shredded pieces or strips of the combustion-inhibiting material may alternatively or additionally be indicated by the dimensions of the material determined during its manufacture, for example, by the sheet width of the manufactured material.

[0120] In some embodiments, the aerosol-forming material included in the consumable includes one or more active substances and / or fragrances. In some embodiments, this material includes tobacco or other plant-derived materials. When this aerosol-forming material includes tobacco, heating this material releases volatile tobacco components including nicotine and fragrance or aroma compounds.

[0121] In some embodiments, the aerosol-generating material includes plant-based materials such as tobacco materials. As used herein, the term "tobacco material" refers to any material that includes tobacco or its derivatives or alternatives. The term "tobacco material" may include one or more of tobacco, tobacco derivatives, expanded tobacco, reconstituted tobacco, or tobacco alternatives. The tobacco material may include one or more of ground tobacco, tobacco fibers, cut tobacco, extruded tobacco, tobacco stems, tobacco sheets, reconstituted tobacco, and / or tobacco extracts.

[0122] In some embodiments, the plant material is a tobacco material and may be provided in the form of cut rag tobacco. The cut rag tobacco may have a cut width of at least 15 cuts per inch (corresponding to about 5.9 cuts per centimeter, a cut width of about 1.7 mm). Preferably, the cut rag tobacco has a cut width of at least 18 cuts per inch (corresponding to about 7.1 cuts per centimeter, a cut width of about 1.4 mm), more preferably at least 20 cuts per inch (corresponding to about 7.9 cuts per centimeter, a cut width of about 1.27 mm). In one example, the cut rag tobacco has a cut width of 22 cuts per inch (corresponding to about 8.7 cuts per centimeter, a cut width of about 1.15 mm). Preferably, the cut rag tobacco has a cut width of 40 cuts per inch (corresponding to about 15.7 cuts per centimeter, a cut width of about 0.64 mm) or less. A cut width between 0.5 mm and 2.0 mm, such as between 0.6 and 1.7 mm or between 0.6 mm and 1.5 mm, has been found to result in a preferred tobacco material with respect to the surface area to volume ratio, especially when heated, and with respect to the overall density and pressure drop of the rod of aerosol-generating material. The cut rag tobacco may be formed from a mixture of forms of tobacco material, such as a mixture of one or more of paper-reconstituted tobacco, leaf tobacco, extruded tobacco, and band-cast tobacco. The tobacco material preferably includes paper-reconstituted tobacco or a mixture of paper-reconstituted tobacco and leaf tobacco.

[0123] Plant materials such as tobacco materials can have any suitable thickness. Plant materials such as tobacco materials can have a thickness of at least about 0.145 mm, for example at least about 0.15 mm, or at least about 0.16 mm. The plant material can have a maximum thickness of about 0.25 mm, for example the thickness of the plant material can be less than about 0.22 mm, or less than about 0.2 mm. In some embodiments, the plant material can have an average thickness in the range of 0.175 mm to 0.195 mm. Such thickness can be particularly suitable when the plant material is a recycled tobacco material.

[0124] The tobacco material can include a recycled tobacco material having a density of less than about 700 mg / cc, such as a paper-recycled tobacco material. For example, the aerosol-generating material includes a recycled tobacco material having a density of less than about 600 mg / cc. Alternatively or in addition, the aerosol-generating material can include a recycled tobacco material having a density of at least 350 mg / cc.

[0125] In some embodiments, the aerosol-generating material contains a filler component. The filler component is generally a non-tobacco component, that is, a component that does not contain raw materials derived from tobacco. The filler component can be a non-tobacco fiber such as wood fiber or pulp or wheat fiber. The filler component can also be an inorganic material such as chalk, perlite, vermiculite, diatomaceous earth, colloidal silica, magnesium oxide, magnesium sulfate, magnesium carbonate. The filler component can also be a non-tobacco casting material or a non-tobacco extrusion material. The filler component can be present in an amount of 0 to 20% by weight of the tobacco material, or in an amount of 1 to 10% by weight of the composition. In some embodiments, the filler component is absent.

[0126] In some embodiments, the aerosol-generating material contains an aerosol-forming material.

[0127] In some embodiments, the aerosol-forming material included with the plant or tobacco material may be glycerol, propylene glycol, or a mixture of glycerol and propylene glycol. Glycerol may be present in an amount of 10-20 wt% of the tobacco material, such as 13-16 wt% of the composition, or about 14 wt% or 15 wt% of the composition. Propylene glycol, if present, may be present in an amount of 0.1-15 wt% of the composition.

[0128] In some embodiments where the plant material is tobacco material, the tobacco material may contain between 10 wt% and 90 wt% tobacco leaves, and the aerosol-forming material is supplied in an amount of up to about 10 wt% of the tobacco leaves. To achieve an overall level of aerosol-forming material between 10 wt% and 20 wt% of the tobacco material, it has been advantageously found that the aerosol-forming material can be added at a higher weight percentage to tobacco materials of other components such as reconstituted tobacco material.

[0129] The tobacco materials described herein contain nicotine. The nicotine content is 0.5-1.75 wt% of the tobacco material, and may be, for example, 0.8-1.5 wt% of the tobacco material. Additionally or alternatively, the tobacco material contains between 10 wt% and 90 wt% tobacco leaves having a nicotine content greater than 1.5 wt% of the tobacco leaves. Using tobacco leaves having a nicotine content higher than 1.5% in combination with a lower nicotine base material such as reconstituted tobacco paper results in a tobacco material having an appropriate nicotine level but good sensory performance, as compared to using reconstituted tobacco paper alone. Tobacco leaves, such as shredded tobacco, may have a nicotine content between, for example, 1.5 wt% and 5 wt% of the tobacco leaves.

[0130] The plant or tobacco material described herein may contain an aerosol modifier such as any of the flavors described herein. In one embodiment, the tobacco material contains menthol and forms an article with menthol. The tobacco material may contain 3 mg to 20 mg of menthol, preferably between 5 mg and 18 mg, more preferably between 8 mg and 16 mg. In this example, the tobacco material contains 16 mg of menthol. The tobacco material may contain between 2 wt% and 8 wt% of menthol, preferably between 3 wt% and 7 wt%, more preferably between 4 wt% and 5.5 wt% of menthol. In one embodiment, the tobacco material contains 4.7 wt% of menthol. Such a high level of menthol loading can be achieved using a high percentage of reclaimed tobacco material, for example greater than 50% by weight of the tobacco material. Alternatively or additionally, the high level of menthol loading can be achieved by incorporating menthol into an aerosol-forming material comprising an aerosol-forming agent and one or more binders and / or cross-linking agents.

[0131] In one embodiment, the tobacco material comprises a tobacco component as defined herein and an aerosol-forming material as defined herein. In one embodiment, the tobacco material consists essentially of a tobacco component as defined herein and an aerosol-forming material as defined herein. In one embodiment, the tobacco material consists of a tobacco component as defined herein and an aerosol-forming material as defined herein.

[0132] Paper-recycled tobacco can be present in the tobacco components of the tobacco materials described herein in an amount of 10% to 100% by weight of the tobacco components. In embodiments, the paper-recycled tobacco is present in an amount of 10% to 80% by weight, or 20% to 70% by weight of the tobacco components. In further embodiments, the tobacco components consist essentially of or consist of paper-recycled tobacco. In a preferred embodiment, the leaf tobacco is present in the tobacco components of the tobacco materials in an amount of at least 10% by weight of the tobacco components. For example, the leaf tobacco can be present in an amount of at least 10% by weight of the tobacco components, while the remaining tobacco components include paper-recycled tobacco, band-cast recycled tobacco, or a combination of another form of tobacco such as band-cast recycled tobacco and tobacco granules. Preferably, the leaf tobacco can be present in an amount up to 40% or 60% of the tobacco materials, while the remaining tobacco components include paper-recycled tobacco, band-cast recycled tobacco, or a combination of another form of tobacco such as band-cast recycled tobacco and tobacco granules.

[0133] Paper-recycled tobacco refers to a tobacco material formed by a process in which a tobacco feedstock is extracted with a solvent to obtain an extract of soluble substances and a residue containing fibrous material, and then the extract (usually after concentration and optionally further processing) is recombined with the fibrous material from the residue by deposition of the extract onto the fibrous material (usually after purification of the fibrous material and optionally addition of some non-tobacco fibers). The recombination process is similar to the paper manufacturing process.

[0134] Paper-recycled tobacco can be any type of paper-recycled tobacco known in the art. In certain embodiments, the paper-recycled tobacco is made from a feedstock that includes one or more of tobacco shreds, tobacco stems, and whole leaf tobacco. In further embodiments, the paper-recycled tobacco is made from a feedstock consisting of tobacco shreds and / or whole leaf tobacco, and tobacco stems. However, in other embodiments, flakes, fines, and winnowing can alternatively or additionally be used in the feedstock.

[0135] The paper-recycled tobacco for use in the tobacco materials described in this specification can be prepared by methods known to those skilled in the art for preparing paper-recycled tobacco.

[0136] The density of the tobacco material affects the rate at which heat conducts through the material, and at lower densities, such as less than 700 mg / cc, heat conducts more slowly through the material, thus allowing for a more sustained release of the aerosol.

[0137] In the figures described in this specification, like reference numerals are used to illustrate equivalent features, articles, or components.

[0138] Figure 1 is a side cross-sectional view of a consumable or article 1 for use in an aerosol delivery system.

[0139] Article 1 comprises a mouthpiece region 2 and an aerosol generation region 3.

[0140] The aerosol generation region 3 is in the form of a cylindrical rod and contains an aerosol generation material 4 comprising reconstituted tobacco with scored lag. The aerosol generation material can be any of the materials discussed in this specification.

[0141] Although the rod form has been described above, the aerosol generation region 3 can be provided in other forms, such as a plug, pouch, or packet of material within the article.

[0142] The mouthpiece region 2 includes a material body 5, such as fibrous tow or filamentous tow, in an exemplary embodiment.

[0143] The rod-shaped consumable 1 further comprises a wrapper 6 that encloses the mouthpiece region 2 and the aerosol generation region 3. The wrapper 6 comprises a sheet of the combustion suppression material described in this specification. In the example shown, the combustion suppression material is a sheet of an amorphous solid material containing sodium chloride.

[0144] Figure 2 is a side cross-sectional view of an alternative embodiment of a consumable or article 1 for use in an aerosol delivery system.

[0145] In this alternative embodiment, article 1 again comprises a mouthpiece region 2 and an aerosol generation region 3. The aerosol generation region 3 contains a blend 7 of aerosol generating material and combustion suppressant material.

[0146] The rod-shaped consumable 1 further comprises a wrapper 8 that encloses the mouthpiece region 2 and the aerosol generation region 3. The wrapper 8 comprises a sheet of paper.

[0147] Non-combustible aerosol supply system According to the present disclosure, a “non-combustible” aerosol supply system is a system in which the constituent aerosol generating material of the aerosol supply system (or a component thereof) is not burned or ignited in order to facilitate delivery of at least one substance to a user.

[0148] In some embodiments, the delivery system is a non-combustible aerosol supply system such as a powered non-combustible aerosol supply system.

[0149] It should be noted that in some embodiments, the non-combustible aerosol supply system is an electronic cigarette, also known as a vaping device or an electronic nicotine delivery system (ENDS), but the presence of nicotine in the aerosol generating material is not a requirement.

[0150] In some embodiments, the non-combustible aerosol supply system is an aerosol generating material heating system, also known as a non-combustion heating system. An example of such a system is a tobacco heating system.

[0151] In some embodiments, the non-combustible aerosol supply system is a composite system that uses a combination of aerosol-generating materials, one or more of which may be heated. Each aerosol-generating material may be, for example, in the form of a solid, liquid or gel, and may or may not contain nicotine. In some embodiments, the composite system includes a liquid or gel aerosol-generating material and a solid aerosol-generating material. The solid aerosol-generating material may include, for example, tobacco or non-tobacco products.

[0152] Typically, the non-combustible aerosol supply system may comprise a non-combustible aerosol supply device and consumables for use with the non-combustible aerosol supply device.

[0153] In some embodiments, the present disclosure relates to consumables that contain an aerosol-generating material and are designed to be used with a non-combustible aerosol supply device. These consumables may also be referred to as articles throughout the present disclosure.

[0154] In some embodiments, the non-combustible aerosol supply system, such as the non-combustible aerosol supply device, may comprise a power source and a control device. The power source may be, for example, a power supply or a heat-generating power source. In some embodiments, the heat-generating power source comprises a carbon-based substrate that can be energized to distribute power in the form of heat to an aerosol-generating material or a heat transfer material in proximity to the heat-generating power source.

[0155] In some embodiments, the non-combustible aerosol supply system may comprise a region for receiving consumables, an aerosol generator, an aerosol generation region, a housing, a mouthpiece, a filter and / or an aerosol modifier.

[0156] Figure 3 shows an example of a non-combustible aerosol supply device 100 for generating an aerosol from an aerosol-generating medium / material, such as the aerosol-generating material of the consumable 110 described herein. Briefly, the device 100 heats a replaceable item 110 containing an aerosol-generating medium, such as the article 1 illustrated in either FIG. 1 or FIG. 2 or described elsewhere herein, and can be used to generate an aerosol or other inhalable medium that is inhaled by a user of the device 100. The device 100 and the replaceable item 110 together form a system.

[0157] The device 100 includes a housing 102 (in the form of an outer cover) that surrounds and houses the various components of the device 100. The device 100 has an opening 104 at one end through which the article 110 can be inserted for heating by a heating assembly. In use, the article 110 can be fully or partially inserted into the heating assembly and heated by one or more components of the heater assembly.

[0158] The device 100 of this example includes a first end 106 and a lid 108 that is movable relative to the first end 106 to close the opening 104 when the article 110 is not disposed therein. In FIG. 3, the lid 108 is shown in the open position, but the lid 108 can be moved to the closed position. For example, the user can slide the lid 108 in the direction of arrow "B".

[0159] The device 100 may also include a user-operable control element 112, such as a button or switch, that activates the device 100 when pressed. For example, the user can turn on the device 100 by operating the switch 112.

[0160] The device 100 may also include electrical components, such as a socket / port 114, that can receive a cable for charging the battery of the device 100. For example, the socket 114 may be a charging port, such as a USB charging port.

[0161] Manufacturing method In some embodiments, the combustion suppressing salt is incorporated into or added to an amorphous solid material dissolved in a solvent or liquid carrier. In some embodiments, the combustion suppressing salt is a suspension in a liquid carrier. The solvent or liquid carrier may be aqueous or an organic liquid and may be polar or non-polar depending on its intended use. The liquid carrier or precursor solvent may be advantageously selected to be volatile such that the carrier liquid or solvent is removed and the combustion suppressing salt can remain in or on the amorphous solid material.

[0162] In some embodiments, the solvent or liquid carrier comprises a mixture of water and glycerol.

Examples

[0163] Consumables having different packages surrounding the rod of the aerosol-forming material were prepared and their combustion characteristics were compared.

[0164] Consumables containing a scored aerosol-forming material were prepared using a variety of different packages.

[0165] The first package used was paper, namely, 24 GSM (grams per square meter) paper having a porosity of 75 CU (cholesterol units).

[0166] The further packages used were Delfort papers of 32 GSM and 64 GSM.

[0167] The further package used was a laminated aluminum foil comprising a 23.5 GSM paper having a thickness of 37 μm laminated with an aluminum foil coated with a lacquer having a thickness of 6.3 μm.

[0168] Finally, using the combustion suppressing material according to the present disclosure, it was formed from a slurry having the following composition: 43 g of alginate (2.7%) 100 g of sodium chloride (6.3%) 50 g of glycerol (3.1%) 1400 ml of water (87.9%)

[0169] As an inner package, a combustion suppression sheet was inserted, and then the rod was filled with tobacco, whereby the consumable was manually produced.

[0170] For testing, attempts were made to smoke the consumables by lighting them with a flame in the manner of a combustible cigarette and inhaling. The greater the combustion resistance of the package material, the less the consumable burned.

[0171] The tests showed that the amorphous solid material containing sodium chloride resisted combustion well and functioned similarly to known combustion suppression foils and Delfort paper.

[0172] In addition, a further combustion suppression material according to the present disclosure was used to form from a slurry having the following composition: 21.5 g of alginate 21.5 g of wood pulp 120 g of sodium chloride 30 g of glycerol 1400 ml of water

[0173] The slurry was dried in a furnace to form a sheet. The obtained sheet did not burn when exposed to a flame without a cover from a lighter.

[0174] The various embodiments described herein are presented only to assist in the understanding and teaching of the claimed features. These embodiments are provided only as representative examples and are not exhaustive and / or exclusive. The advantages, embodiments, examples, functions, features, structures, and / or other aspects described herein should not be considered to limit the scope of the invention defined by the claims or to limit the claimed equivalents, and it should be understood that other embodiments may be utilized and modifications may be made without departing from the scope of the claimed invention. The various embodiments of the invention preferably include, consist of, or consist essentially of a suitable combination of disclosed elements, components, features, parts, steps, means, etc. other than those specifically described herein. Additionally, the present disclosure may include other inventions that are not claimed herein but may be claimed in the future.

Claims

1. A material comprising a combustion-suppressing salt and an amorphous solid material.

2. 10. The material of claim 1, wherein the burn-inhibiting salt is an alkali metal salt optionally selected from the group consisting of sodium chloride, potassium chloride, sodium bromide, potassium bromide, and combinations thereof.

3. 3. The material of claim 1 or 2, wherein the burn-inhibiting salt is incorporated into the amorphous solid material.

4. 3. The material of claim 1 or 2, wherein the combustion inhibiting salt is applied to the amorphous solid material.

5. The material of any one of claims 1 to 4, wherein the material comprises from about 3 wt% to about 60 wt% of a fire suppressant salt (on a dry weight basis).

6. A consumable product comprising the material according to any one of claims 1 to 5.

7. The consumable product of claim 6 , further comprising an aerosol-forming material.

8. The consumable of claim 7 , wherein the material at least partially surrounds the aerosol-forming material.

9. The consumable product according to any one of claims 6 to 8, further comprising a packaging body.

10. The consumable product of any one of claims 7 to 9, wherein the material is distributed within the aerosol-forming material.

11. The consumable product of claim 6 , wherein the aerosol-forming material comprises a tobacco material.

12. 12. The consumable product of claim 11, wherein the tobacco material is cut rag tobacco.

13. The consumable product according to any one of claims 6 to 12, comprising a binder.

14. The consumable product according to any one of claims 6 to 13, which is rod-shaped.

15. 15. The consumable of claim 14, wherein the rod has a distal end and a proximal end, and the material is provided in a limited or greater concentration near the distal end of the rod.

16. A non-combustible aerosol delivery system comprising the consumable product according to any one of claims 6 to 15.

17. A method for producing a material according to any one of claims 1 to 5, wherein the combustion inhibiting salt is incorporated or added to the amorphous solid material.

18. 20. The method of claim 17, wherein a solution or suspension containing the burn-inhibiting salt is applied to the amorphous solid material.

19. 19. The method of claim 17 or 18, wherein the combustion inhibiting salt is added during the preparation of the amorphous solid material.

20. 6. Use of a material according to any one of claims 1 to 5 to inhibit the combustion of a consumable for use in a non-combustible aerosol delivery system.

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