KR20240036573A - Aerosol-generating composition - Google Patents

Abstract

The present invention relates to aerosol generating materials; Aerosol-generating compositions comprising an aerosol-generating material; Articles for use with non-flammable aerosol delivery devices; and non-flammable aerosol delivery devices comprising articles. The aerosol-generating material may comprise from about 1 to about 80 weight percent of the aerosol-generating material; About 5 to about 50 weight percent of one or more binders, the one or more binders comprising a cellulose-based binder; About 0.1 to about 60% flavor by weight; Emulsifier in an amount of about 1 to about 25 weight percent; and optionally, fillers.

Description

Aerosol-generating composition

The present invention relates to aerosol-generating compositions comprising an aerosol-generating material; Consumables for use within a non-flammable aerosol delivery system, the consumables comprising an aerosol generating composition; and non-flammable aerosol delivery systems.

Smoking consumables such as cigarettes, cigars, etc. produce tobacco smoke by burning tobacco during use. Alternatives to these types of articles release the compounds from the substrate material by heating rather than burning, thereby releasing an inhalable aerosol or vapor. These may be referred to as non-combustible smoking supplies or aerosol generating assemblies.

One example of such a product is a heating device, which releases the compounds by heating but not burning solid aerosol-generating materials. This aerosol-generating solid material may, in some cases, contain botanical material. Heating volatilizes at least one component of the material, typically forming an inhalable aerosol. These products may be referred to as heat-not-burn devices, tobacco heating devices or tobacco heating products. Various other arrangements are known for volatilizing at least one component of an aerosol-generating solid material.

As another example, hybrid devices exist. They have a liquid source (which may or may not contain nicotine) which is vaporized by heating to generate an inhalable vapor or aerosol. The device further contains an aerosol-generating solid material (which may or may not contain tobacco material) whose components are entrained in an inhalable vapor or aerosol to generate an inhalation medium.

According to a first aspect of the present invention, an aerosol-generating material is provided for use in aerosol generation, the aerosol-generating material comprising:

an aerosol generating agent in an amount of from about 1 to about 80% by weight of the aerosol generating material;

one or more binders, the total amount of binders being from about 5 to about 50 weight percent of the aerosol-generating material, and the one or more binders comprising a cellulose-based binder;

Flavor in an amount from about 0.1 to about 60% by weight of the aerosol generating material;

Emulsifier in an amount of from about 1 to about 25% by weight of the aerosol-generating material; and

Optionally, includes fillers.

In one embodiment, the aerosol generating material:

an aerosol generating agent in an amount of from about 1 to about 80% by weight of the aerosol generating material;

one or more binders, the total amount of binders being from about 10 to about 50 weight percent of the aerosol-generating material, and the one or more binders comprising a cellulose-based binder;

Flavor in an amount from about 0.1 to about 60% by weight of the aerosol generating material;

Emulsifier in an amount of from about 1 to about 15% by weight of the aerosol-generating material; and

Optionally, includes fillers.

In a second aspect, an aerosol-generating composition comprising the aerosol-generating material of the first aspect is provided.

According to a further aspect of the invention, there is provided an aerosol-generating composition comprising a first aerosol-generating material and a second aerosol-generating material, wherein the first aerosol-generating material is defined according to the first aspect, and the second aerosol-generating material is ,

an aerosol generating agent in an amount of from about 1 to about 80% by weight of the aerosol generating material;

One or more binders, the total amount of binders being from about 5 to about 50 weight percent of the aerosol-generating material;

Flavor in an amount from about 0.1 to about 60% by weight of the aerosol generating material;

Emulsifier in an amount of from about 1 to about 25% by weight of the aerosol-generating material; and

optionally comprising a filler,

The composition of the second aerosol-generating material is different from the composition of the first aerosol-generating material.

In one embodiment, the second aerosol generating material:

an aerosol generating agent in an amount of from about 1 to about 80% by weight of the aerosol generating material;

One or more binders, the total amount of binders being from about 10 to about 50 weight percent of the aerosol-generating material;

Flavor in an amount from about 0.1 to about 60% by weight of the aerosol generating material;

Emulsifier in an amount of from about 1 to about 15% by weight of the aerosol-generating material; and

Optionally, includes fillers.

According to a further aspect of the invention, a consumable for use within a non-flammable aerosol delivery system is provided, the consumable comprising an aerosol-generating composition as defined herein.

According to a further aspect of the invention, there is provided a non-flammable aerosol delivery system comprising a consumable as defined herein and a non-flammable aerosol delivery device, wherein the consumable is coupled with a non-flammable aerosol delivery device. and an aerosol generating device arranged to generate an aerosol from the consumable when used.

According to a further aspect of the invention, there is provided the use of an aerosol-generating composition as defined herein in a consumable for use in a non-flammable aerosol-providing device, wherein the consumable is a non-flammable aerosol-providing device and and an aerosol generating device arranged to generate an aerosol from the consumable when used together.

According to a further aspect of the invention, a method of making an aerosol-generating material or aerosol-generating composition as described herein is provided.

According to a further aspect of the invention, a method of generating an aerosol using a non-flammable aerosol delivery system as described herein is provided, the method comprising heating an aerosol generating material. In some embodiments, the method includes heating the aerosol-generating material to a temperature of 350° C. or less. In some embodiments, the method includes heating the aerosol-generating material to a temperature of about 220 °C to about 280 °C.

Further features and advantages of the invention will become apparent from the following description of preferred embodiments of the invention, made with reference to the accompanying drawings and given by way of example only.

1 shows a cross-sectional view of an example of an aerosol-generating article.
Figure 2 shows a perspective view of the article of Figure 1;
Figure 3 shows a cross-sectional elevation view of an example of an aerosol-generating article.
Figure 4 shows a perspective view of the article of Figure 3;
Figure 5 shows a perspective view of an example of an aerosol generating assembly.
Figure 6 shows a cross-sectional view of an example of an aerosol generating assembly.
Figure 7 shows a perspective view of an example of an aerosol generating assembly.
Figure 8 shows the menthol release profile of alginate bearing gel.
Figure 9 shows the menthol release profile of the CMC retaining gel.
Figures 10-13 show the menthol release profiles of alginate:CMC bearing gels.
Figure 14 shows an exploded view of an exemplary consumable.
Figure 15 shows an example of a consumable comprising multiple individual portions of aerosol-generating material.

Aerosol-generating compositions described herein are compositions that are capable of generating an aerosol, for example, when energized, irradiated, or heated in any other way. Aerosol-generating compositions may be in solid, liquid or gel form, for example, which may or may not contain nicotine. An aerosol-generating composition includes an aerosol-generating material. The aerosol-generating material may be an “amorphous solid.” In some embodiments, the amorphous solid is a “monolithic solid.” Aerosol-generating materials may be non-fibrous or fibrous. In some embodiments, the aerosol-generating material may be a dried gel. The aerosol-generating material may be a solid material capable of retaining some fluid, such as a liquid, within it. In some embodiments, the aerosol-generating composition may comprise, for example, about 50%, 60%, or 70% aerosol-generating material by weight to about 90%, 95%, or 100% aerosol-generating material by weight. You can. In some cases, the aerosol-generating composition consists of an aerosol-generating material.

As described above, the present invention provides an aerosol-generating material, the aerosol-generating material comprising:

an aerosol generating agent in an amount of from about 1 to about 80% by weight of the aerosol generating material;

one or more binders, the total amount of binders being from about 5 to about 50 weight percent of the aerosol-generating material, and the one or more binders comprising a cellulose-based binder;

Flavor in an amount from about 0.1 to about 60% by weight of the aerosol generating material;

Emulsifier in an amount of from about 1 to about 25% by weight of the aerosol-generating material; and

Optionally, includes fillers.

The inventors have established that one or more binders, including cellulosic binders, can provide improved substrates.

The use of a cellulose-based binder, such as a binder comprising carboxymethyl cellulose, may be advantageous due to lower material costs. Ease of manufacture can also be improved because the choice of a specific binder can avoid the requirement for a crosslinking agent, which can be difficult to apply.

In one embodiment, the one or more binders include a cellulosic binder and a non-cellulosic binder. Without wishing to be bound by theory, it is believed that a combination of cellulosic and non-cellulosic binders may have a synergistic effect on bonding in aerosol generating materials. For example, the ability of an aerosol generating material to release flavor during use can be improved by using a combination of cellulosic and non-cellulosic binders.

Additionally, combining cellulosic binders with non-cellulosic binders in specific ratios may determine the temperature at which the flavor (e.g., menthol) is released from the aerosol-generating material when heated and/or the use at which the flavor (e.g., menthol) is released. This can affect your timing in the session.

The aerosol-generating material may range from about 1%, 5%, 10%, 12%, or 13% to about 18%, 20%, 25%, 30%, 35%, 45%, Contains 55%, 65%, 75% or 80% by weight of aerosol generating agent (all calculated on dry weight basis). In exemplary embodiments, the aerosol-generating material is 5 to 35 weight percent, 5 to 20 weight percent, 5 to 15 weight percent, 10 to 35 weight percent, 10 to 30 weight percent, 12 to 25 weight percent, 13 to 20 weight percent. % by weight or 13 to 18 wt% aerosol generating agent (all calculated on dry weight basis).

In some embodiments, the aerosol generating agent is glycerol, propylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, 1,3-butylene glycol, erythritol, meso-erythritol, ethyl vanillatate, ethyl lau. One or more of nitrate, diethyl subrate, triethyl citrate, triacetin, diacetin mixture, benzyl benzoate, benzyl phenyl acetate, tributyrin, lauryl acetate, lauric acid, myristic acid, and propylene carbonate. It can be included. In some cases, the aerosol generating agent includes, consists essentially of, or consists essentially of glycerol.

The aerosol-generating material may comprise from about 5%, 10%, 12%, 15%, 17% or 20% to about 25%, 30%, 40%, 45% or 50% by weight of the total amount. % of one or more binders (all calculated on dry weight basis). In exemplary embodiments, the aerosol-generating material includes one or more binders from 15%, 17%, 19%, or 20% to about 25%, 27%, or 30% by weight of the total amount. For example, the aerosol-generating material may include one or more binders in a total amount of 15 to 30%, 17 to 27%, 17 to 25%, or 20 to 25% by weight.

One or more binders include a cellulose-based binder. Examples of cellulosic binders that can be used are hydroxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, carboxymethylcellulose (CMC), hydroxypropyl methylcellulose (HPMC), methyl cellulose, ethyl cellulose, cellulose acetate (CA) ), cellulose acetate butyrate (CAB), and cellulose acetate propionate (CAP). In some embodiments, the cellulose-based binder is selected from hydroxyethyl cellulose, hydroxypropyl cellulose, and/or carboxymethylcellulose. In some embodiments, the cellulose-based binder includes carboxymethylcellulose (CMC). In some embodiments, the cellulose-based binder is carboxymethylcellulose (CMC).

In some cases, the one or more binders include a cellulosic binder and a non-cellulosic binder. The cellulose-based binder may be selected from those listed above. In some embodiments, the cellulose-based binder is selected from hydroxyethyl cellulose, hydroxypropyl cellulose, and/or carboxymethylcellulose. In some embodiments, the cellulose-based binder includes carboxymethylcellulose. In some embodiments, the cellulose-based binder is carboxymethylcellulose. The non-cellulosic binder may be selected from the group comprising alginates, pectins, starches (and derivatives), gums, silica or silicone compounds, clays, polyvinyl alcohol, and combinations thereof. In some embodiments, non-cellulosic binders include alginates, pectins, pullulan, xanthan gum, guar gum, carrageenan, agarose, gum acacia, fumed silica, PDMS, sodium silicate, kaolin, and polyvinyl alcohol. is selected from a group consisting of In some embodiments, the non-cellulosic binder includes alginate. In some embodiments, the cellulosic binder is alginate.

In some embodiments, the binder is one or more of hydroxyethyl cellulose, hydroxypropyl cellulose, and/or carboxymethylcellulose, alginates, pectins, pullulan, xanthan gum, guar gum, carrageenan, agarose, Contains one or more of acacia gum, fumed silica, PDMS, sodium silicate, kaolin, and polyvinyl alcohol. In some cases, the binder comprises, consists essentially of, or consists essentially of carboxymethyl cellulose. In some cases, the binder comprises carboxymethyl cellulose and alginate, consists essentially of carboxymethyl cellulose and alginate, or consists essentially of carboxymethyl cellulose and alginate.

In some embodiments, the aerosol-generating composition includes a crosslinking agent. In some cases, the crosslinking agent includes calcium ions. In some cases, the aerosol-generating composition may include carboxymethyl cellulose and calcium-crosslinked alginate. Crosslinking agents can also be described as setting agents.

In some embodiments, the aerosol-generating composition does not include a crosslinking agent.

In some embodiments, the binder comprises carboxymethyl cellulose, wherein the carboxymethyl cellulose is 5 to 50%, 5 to 25%, 5 to 20%, 5 to 50% by weight of the aerosol generating material (calculated on a dry weight basis). It is present in the aerosol-generating composition in an amount of 15%, 10 to 50%, 15 to 40%, 20 to 35% or 20 to 30% by weight. In some embodiments, carboxymethyl cellulose is the only binder present in the aerosol-generating composition. In other embodiments, the binder includes carboxymethyl cellulose and at least one additional non-cellulosic binder, such as alginate.

Suitably, binders include cellulosic binders and non-cellulosic binders. In some embodiments, the weight ratio of cellulosic binder to non-cellulosic binder is 1:4 to 4:1, 1:1 to 2:1, 2:3 to 7:3, 2:3 to 3:2, or It is 1:1 to 3:2. In some embodiments, the weight ratio of cellulosic binder to non-cellulosic binder is >1:1. That is, in some embodiments, the cellulosic binder is present in an amount greater than the amount of the non-cellulosic binder. In some embodiments, the weight ratio of cellulosic binder to non-cellulosic binder is about 1:1. In some embodiments, the weight ratio of cellulosic binder to non-cellulosic binder is about 3:2.

The inventors have discovered that flavoring compounds (e.g., menthol) that incorporate one or more binders within an aerosol-generating material are stabilized within the binder matrix, allowing controlled release of the flavor during a smoking session. Flavors (e.g. menthol) are stabilized at high concentrations and the products have good shelf life.

The aerosol-generating material may be present in an amount of from about 0.1%, 0.5%, 1%, 5%, 10%, 15%, 20%, 25%, 30% or 35% to about 45%, It may contain 50% by weight, or 60% by weight (all calculated on a dry weight basis) of flavor. In exemplary embodiments, the aerosol generating material contains from 1%, 5%, 10%, 20%, 30%, or 35% to about 42%, 45%, or 47% of the flavor. Includes. For example, the aerosol generating material may include 1 to 45%, 10 to 45%, 20 to 50%, 30 to 50%, 30 to 45%, or 35 to 45% by weight of flavor. . Alternatively, the aerosol generating material may include 5 to 25%, 10 to 25%, 10 to 20% or 15 to 20% by weight of flavor.

As used herein, the terms “flavour” and “flavourant” refer to the taste, aroma, or aroma desired in a product for adult consumers, when local regulations permit. ) or other somatosensorial sensations. These include naturally occurring flavoring ingredients, plants, extracts of plants, synthetically obtained ingredients, or combinations thereof (e.g. tobacco, cannabis, licorice, hydrangea, eugenol, Japanese white bark magnolia leaf, chamomile, fenugreek, clove, maple, matcha, menthol, Japanese mint, aniseed, cinnamon, turmeric, Indian spices, Asian spices, herbs, wintergreen. , cherries, berries, red berries, cranberries, peaches, apples, oranges, mangoes, clementines, lemons, limes, tropical fruits, papaya, rhubarb, grapes, durian, dragon fruit, cucumbers, blueberries, mulberries, citrus fruits, Drambuie, bourbon, scotch, whiskey, gin, tequila, rum, spearmint, peppermint, lavender, aloe vera, cardamom, celery. , cascarilla, nutmeg, sandalwood oil, bergamot, geranium, khat, naswar, betel nut, hookah, pine, honey essence, rose oil, vanilla, lemon. Oil, orange oil, orange blossom, cherry blossom, cassia, caraway, cognac, jasmine, ylang-ylang, sage, fennel, wasabi, piment, ginger, coriander, Coffee, hemp, mint oil from any species of the genus Mentha, eucalyptus, star anise, cocoa, lemongrass, rooibos, flax, ginkgo, hazelnuts, hibiscus. , bay, mate, orange skin, rose, tea such as green or black tea, thyme, juniper, elderflower, basil, bay leaf, cumin, oregano. ), paprika, rosemary, saffron, lemon peel, mint, beefsteak plant, turmeric, coriander, myrtle, cassis, valerian. , pimento, mace, damien, marjoram, olive, lemon balm, lemon basil, chive, carvi, verbena. (verbena, tarragon, limonene, thymol, camphene), flavor enhancers, bitter receptor site blockers, sensory receptor site activators or irritants, sugars and/or Sugar substitutes (e.g., sucralose, acesulfame potassium, aspartame, saccharin, cyclamates, lactose, sucrose, glucose, fructose, sorbitol, or mannitol), and other additives , such as charcoal, chlorophyll, minerals, herbal medicines, or breath fresheners. These may be imitation, synthetic or natural ingredients or blends thereof. These may be in any suitable form, for example liquids such as oils, solids such as powders or gases.

In some embodiments, the flavor includes menthol, spearmint, and/or peppermint. In some embodiments, the flavor includes, consists essentially of, or consists essentially of menthol.

In some embodiments, the flavor includes flavor components of cucumber, blueberry, citrus, and/or red berry.

In some embodiments, the flavor includes eugenol.

In some embodiments, the flavor includes flavor components extracted from tobacco.

In some embodiments, the flavor includes flavor components extracted from cannabis.

In some embodiments, flavor is a sensation intended to achieve a somatosensory sensation that is generally chemically induced and perceived by stimulation of the fifth cranial nerve (trigeminal nerve), in addition to or instead of the scent or taste nerves. These may include agents that provide heating, cooling, tingling, and numbing effects. A suitable thermogenic agent may be, but is not limited to, vanillyl ethyl ether, and a suitable cooling agent may be, but is not limited to, eucolyptol or N-ethyl-2-isopropyl-5-methylcyclohexanecarboxamide (WS-3). .

The aerosol-generating material may contain from about 1%, 3% or 5% to about 7%, 10%, 12%, 15%, 20% or 25% emulsifier, all calculated on a dry weight basis. ) may include. In exemplary embodiments, the aerosol-generating material includes about 3%, 4%, or 5% by weight or about 7%, 8%, or 10% by weight of emulsifier. For example, the aerosol-generating material may include 4 to 8 weight percent or 5 to 7 weight percent emulsifier.

In some cases, the emulsifier includes one or more compounds selected from agar, xanthan gum, gum arabic (acacia gum), guar gum, locust bean gum, pectin, carrageenan, and lecithin. In some cases, the emulsifier includes, consists essentially of, or consists essentially of guar gum.

In some embodiments, the aerosol-generating material contains less than 35% filler, such as from about 1%, 5%, or 10% to about 20%, 25%, 30%, or 35% filler ( (all calculated on dry weight basis). In exemplary embodiments, the aerosol-generating material includes about 7%, 10%, or 11% or about 15%, 20%, or 25% filler by weight. For example, the aerosol-generating material may include 7 to 25 weight percent, 10 to 20 weight percent, 15 to 20 weight percent, 10 to 15 weight percent, or 11 to 15 weight percent filler.

In some embodiments, the aerosol-generating material contains less than 60% filler, such as from about 30%, 40%, or 45% to about 50%, 55%, or 60% filler (all on a dry weight basis). (calculated as). In exemplary embodiments, the aerosol-generating material includes about 40 to 60 weight percent, 40 to 55 weight percent, or 45 to 55 weight percent filler.

In other embodiments, the aerosol-generating material may include less than 20 weight percent filler, suitably less than 10 weight percent or less than 5 weight percent filler. In some cases, the aerosol-generating material includes less than 1% by weight of filler, and in some cases, the aerosol-generating material includes no filler.

The filler (if present) may be one or more suitable inorganic filler materials such as calcium carbonate, perlite, vermiculite, diatomaceous earth, colloidal silica, magnesium oxide, magnesium sulfate, magnesium carbonate, and molecular sieves. May contain adsorbents. Filler (if present) may include one or more organic filler materials, such as wood pulp, cellulose and cellulose derivatives. In special cases, the aerosol-generating solid material does not include calcium carbonate, such as chalk.

In certain embodiments involving filler, the filler is fibrous. For example, the filler can be a fibrous organic filler material, such as wood pulp, hemp fiber, cellulose or cellulose derivatives (such as microcrystalline cellulose (MCC) and/or nanocrystalline cellulose). In some embodiments, the filler includes (or is) wood pulp and/or MCC. Without being bound by theory, it is believed that including fibrous fillers in aerosol-generating materials can increase the tensile strength of the material. This may be particularly advantageous in instances where the aerosol-generating material is provided in a sheet, such as when the sheet of aerosol-generating material surrounds a rod of the aerosol-generating composition.

In some cases, the filler includes maltodextrin or microcrystalline cellulose (MCC).

As is well understood by those skilled in the art, microcrystalline cellulose can be formed by depolymerising cellulose by chemical processes (e.g., using acids or enzymes). One exemplary method for forming microcrystalline cellulose involves acid hydrolysis of cellulose using an acid such as HCl. The resulting cellulose after this treatment is crystalline (i.e., no amorphous regions remain). Suitable methods and conditions for forming microcrystalline cellulose are well known in the art.

In some cases, the filler has a density of less than about 2 g/cm3, such as less than about 0.5 g/cm3 or less than about 0.3 g/cm3.

The aerosol-generating material may have any suitable moisture content, for example, from 1% to 15% by weight. Suitably, the moisture content of the aerosol-generating material may be from about 5%, 7%, or 9% by weight to about 15%, 13%, or 11% by weight (WWB). The moisture content of the aerosol-generating material can be determined, for example, by Karl-Fischer-titration or Gas Chromatography with Thermal Conductivity Detector (GC-TCD).

Aerosol-generating materials may include colorants. The addition of colorants can change the visual appearance of the aerosol-generating material. The presence of colorants in the aerosol-generating material can enhance the visual appearance of the aerosol-generating material and aerosol-generating composition. By adding a colorant to the aerosol-generating material, the aerosol-generating material can be color-matched with other components of the aerosol-generating composition or with other components of the article comprising the aerosol-generating material.

Various colorants can be used depending on the desired color of the aerosol generating material. The color of the aerosol-generating material may be, for example, white, green, red, purple, blue, brown or black. Other colors are also envisioned. Natural or synthetic colorants may be used, such as natural or synthetic dyes, food-grade colorants, and pharmaceutical-grade colorants. In certain embodiments, the colorant is caramel, which can impart a brown appearance (e.g., similar to tobacco) to the aerosol-generating material. In certain embodiments, the aerosol-generating material includes up to 5% by weight, for example, about 1 to about 4% by weight (calculated on a dry weight basis) of a colorant, such as caramel. In such embodiments, the color of the aerosol-generating material may be similar to the color of other components of the aerosol-generating composition comprising the aerosol-generating material (e.g., tobacco materials). In some embodiments, the addition of a colorant to the aerosol-generating material renders the aerosol-generating material visually indistinguishable from other components of the aerosol-generating composition.

The colorant may be incorporated during forming the aerosol-generating material (e.g., when forming a slurry comprising the materials forming the aerosol-generating material) or (e.g., by spraying onto the aerosol-generating material). It may also be applied to the aerosol-generating material after the material has been formed.

In some embodiments, the aerosol-generating composition additionally includes an active agent. For example, in some cases, the aerosol-generating composition additionally includes tobacco material and/or nicotine. In some cases, the aerosol-generating composition may include 5 to 60% by weight (calculated on a dry weight basis) of tobacco material and/or nicotine. In some cases, the aerosol-generating composition can be from about 1%, 5%, 10%, 15%, 20%, or 25% by weight to about 70%, 60%, 50%, 45% by weight. , 40% by weight, 35% by weight or 30% by weight (calculated on dry weight basis) of the active substance. In some cases, the aerosol-generating composition has from about 1%, 5%, 10%, 15%, 20%, or 25% by weight to about 70%, 60%, 50%, 45% by weight. , 40% by weight, 35% by weight or 30% by weight (calculated on a dry weight basis) of tobacco material. For example, the aerosol-generating composition may include 10 to 50 weight percent, 15 to 40 weight percent, or 20 to 35 weight percent tobacco material. In some cases, the aerosol-generating composition may contain from about 1%, 2%, 3%, or 4% to about 20%, 18%, 15%, or 12% by weight (calculated on a dry weight basis). May contain nicotine. For example, the aerosol-generating composition may include 1 to 20%, 2 to 18%, or 3 to 12% nicotine by weight.

In some cases, the aerosol-generating composition includes an active agent such as tobacco extract. In some cases, the aerosol-generating composition may include 5 to 60% by weight (calculated on a dry weight basis) of tobacco extract. In some cases, the aerosol-generating composition can be from about 5%, 10%, 15%, 20% or 25% by weight to about 60%, 50%, 45%, 40%, 35% by weight. or 30% by weight (calculated on dry weight basis) of tobacco extract. For example, the aerosol-generating composition may include 10 to 50 weight percent, 15 to 40 weight percent, or 20 to 35 weight percent tobacco extract. The tobacco extract may be used in an amount of the aerosol-generating composition ranging from 1%, 1.5%, 2% or 2.5% to about 10%, 8%, 6%, 5%, 4.5% or 4% by weight (dry weight). nicotine may be present in the composition such that it contains nicotine (calculated on a basis). In some embodiments, the aerosol-generating composition may include 1 to 10 weight percent, 2.5 to 8 weight percent, or 2 to 6 weight percent nicotine. In some cases, the aerosol-generating composition may be free of nicotine other than the nicotine produced from tobacco extract.

In some embodiments, the aerosol-generating composition does not include tobacco material but includes nicotine. In some such cases, the aerosol-generating composition may be from about 1%, 2%, 3%, or 4% to about 20%, 18%, 15%, or 12% by weight (calculated on a dry weight basis). May contain nicotine. For example, the aerosol-generating composition may include 1 to 20%, 2 to 18%, or 3 to 12% nicotine by weight.

Aerosol-generating compositions may include acids. The acid may be an organic acid. In some of these embodiments, the acid may be at least one of monoprotic acid, diprotic acid, and triprotic acid. In some such embodiments, the acid may possess at least one carboxyl functional group. In some such embodiments, the acid can be at least one of alpha-hydroxy acids, carboxylic acids, dicarboxylic acids, tricarboxylic acids, and keto acids. In some such embodiments, the acid may be an alpha-keto acid.

In some such embodiments, the acid may be at least one of succinic acid, lactic acid, benzoic acid, citric acid, tartaric acid, fumaric acid, levulinic acid, acetic acid, malic acid, formic acid, sorbic acid, benzoic acid, propanoic acid, and pyruvic acid.

Suitably the acid is lactic acid. In other embodiments, the acid is benzoic acid. In other embodiments, the acid may be an inorganic acid. In some of these embodiments, the acid may be a mineral acid. In some such embodiments, the acid may be at least one of sulfuric acid, hydrochloric acid, boric acid, and phosphoric acid. In some embodiments, the acid is levulinic acid.

Including an acid is particularly preferred in embodiments where the aerosol-generating composition includes nicotine. In such embodiments, the presence of an acid can stabilize dissolved species in the slurry from which the aerosol-generating composition is formed. The presence of acid can reduce or substantially prevent evaporation of nicotine during drying of the slurry, thereby reducing loss of nicotine during manufacturing. The presence of acid can also improve the flavor of the aerosol when nicotine is present. For example, the perceived harshness of nicotine can be reduced by the presence of acid.

In some embodiments, the aerosol generating material is substantially free of tobacco. “Substantially free” means that the material contains less than 1% by weight tobacco, such as less than 0.5% by weight tobacco. In some embodiments, the aerosol generating material is tobacco-free. In some embodiments, the aerosol-generating material does not include tobacco fibers. In certain embodiments, the aerosol-generating material does not include fibrous material.

In some embodiments, the aerosol-generating composition does not include tobacco fibers. In certain embodiments, the aerosol-generating composition does not include fibrous material.

In some embodiments, the aerosol-generating composition includes first and second aerosol-generating materials, wherein the composition of the second aerosol-generating material is different from the composition of the first aerosol-generating material.

The first aerosol generating material is as defined herein,

an aerosol generating agent in an amount of from about 1 to about 80% by weight of the aerosol generating material;

one or more binders, the total amount of binders being from about 5 to about 50 weight percent of the aerosol-generating material, and the one or more binders comprising a cellulose-based binder;

Flavor in an amount from about 0.1 to about 60% by weight of the aerosol generating material;

Emulsifier in an amount of from about 1 to about 25% by weight of the aerosol-generating material; and

Optionally, fillers are included.

The second aerosol generating material is:

an aerosol generating agent in an amount of from about 1 to about 80% by weight of the aerosol generating material;

One or more binders, the total amount of binders being from about 5 to about 50 weight percent of the aerosol-generating material;

Flavor in an amount from about 0.1 to about 60% by weight of the aerosol generating material;

Emulsifier in an amount of from about 1 to about 25% by weight of the aerosol-generating material; and

Optionally, fillers are included.

In one embodiment, the first aerosol generating material is as defined herein,

an aerosol generating agent in an amount of from about 1 to about 80% by weight of the aerosol generating material;

one or more binders, the total amount of binders being from about 10 to about 50 weight percent of the aerosol-generating material, and the one or more binders comprising a cellulose-based binder;

Flavor in an amount from about 0.1 to about 60% by weight of the aerosol generating material;

Emulsifier in an amount of from about 1 to about 15% by weight of the aerosol-generating material; and

optionally comprising a filler, and

The second aerosol generating material is:

an aerosol generating agent in an amount of from about 1 to about 80% by weight of the aerosol generating material;

One or more binders, the total amount of binders being from about 10 to about 50 weight percent of the aerosol-generating material;

Flavor in an amount from about 0.1 to about 60% by weight of the aerosol generating material;

Emulsifier in an amount of from about 1 to about 15% by weight of the aerosol-generating material; and

Optionally, fillers are included.

All of the embodiments disclosed herein with respect to aerosol-generating materials apply equally to both first and second aerosol-generating materials, except for the fact that the second aerosol-generating material need not include a cellulosic binder. do. In one aspect, the one or more binders in the second aerosol-generating composition are different from the one or more binders in the first aerosol-generating composition.

In certain embodiments, the one or more binders in the second aerosol-generating material are different from the one or more binders in the first aerosol-generating material. In certain embodiments, the one or more binders in the second aerosol generating material include a non-cellulosic binder. In some cases, the non-cellulosic binder is alginate.

An aerosol-generating composition comprising two different aerosol-generating materials can allow release of flavor at two different temperatures or across a range of temperatures. This may be particularly the case where the aerosol generating materials contain different binders. For example, a flavor (e.g., menthol) may be released from a first aerosol-generating material at a lower temperature than from a second aerosol-generating material, or vice versa, over a wider temperature range and potentially at a lower temperature than from a second aerosol-generating material. Allows flavor release over a long period of time. Without wishing to be bound by theory, it is believed that when a non-cellulosic binder is used, the flavor (eg, menthol) will be released at lower temperatures.

In some embodiments, the aerosol-generating article does not include tobacco fibers. In certain embodiments, the aerosol-generating article does not include fibrous material.

The aerosolizable or aerosol generating material may be present on or within the support to form a substrate. The support functions as a support on which a layer of aerosol generating material is formed, facilitating manufacturing. The support can provide rigidity to the aerosol generating material layer, facilitating handling.

The support can be any suitable material that can be used to support the aerosol generating material. In some cases, the support may be formed of materials selected from metal foil, paper, carbon paper, oil-resistant paper, ceramics, carbon allotropes such as graphite and graphene, plastic, cardboard, wood or combinations thereof. . In some cases, the support may include or consist of tobacco material, such as a sheet of reconstituted tobacco. In some cases, the support may be formed from materials selected from metal foil, paper, cardboard, wood, or combinations thereof. In some cases, the support includes paper. In some cases, the support may be a laminate structure comprising layers of materials selected from the previous lists. In some cases, the support may also function as a flavor support. For example, the support can be impregnated with flavoring agent or tobacco extract.

Suitably, the thickness of the support layer is from about 10 μm, 15 μm, 17 μm, 20 μm, 23 μm, 25 μm, 50 μm, 75 μm or 0.1 mm to about 2.5 mm, 2.0 mm, 1.5 mm, 1.0 mm. Or it may be in the range of 0.5 mm. The support may include more than one layer, and the thickness described herein refers to the collective thickness of these layers.

In some cases, the support can be magnetic. This functionality may be used to fasten the support to an assembly during use, or may be used to create specific aerosol generating material shapes. In some cases, the aerosol-generating substrate may include one or more magnets that can be used to fasten the substrate to an induction heater when in use.

In some cases, the support may be substantially or entirely impermeable to gases and/or aerosols. This prevents aerosols or gases from passing through the support layer, thereby controlling the flow and ensuring delivery to the user. It may also be used to prevent condensation or other deposition of gases/aerosols in use, for example on the surface of a heater provided in an aerosol generating assembly. Accordingly, consumption efficiency and hygiene may be improved in some cases.

In some cases, the surface of the support that abuts the aerosol generating material may be porous. For example, in one case, the support includes paper. Porous supports such as paper are particularly suitable for the present invention; The porous (eg paper) layer abuts the aerosol generating layer and forms a strong bond. The aerosol-generating material is formed by drying a gel, without being limited by theory, wherein the slurry forming the gel partially impregnates a porous support (e.g., paper), whereby the gel hardens and forms cross-links. When doing so, it is believed that the support is partially bound to the gel. This provides a strong bond between the gel and the support (and between the dried gel and the support).

Additionally, surface roughness can contribute to the bond strength between the aerosol-generating material and the support. The paper roughness (relative to the surface in contact with the carrier) is suitably 50 to 1000 Bekk sec, suitably 50 to 150 Bekk sec, suitably 100 Bekk sec (over an atmospheric pressure interval of 50.66 to 48.00 kPa). was found to be in the range of (Beck Smoothness Tester is an instrument used to determine the smoothness of a paper surface where a specified pressure of air leaks between a smooth glass surface and a paper sample; the time (in seconds) it takes for a fixed volume of air to seep between these surfaces is called "Beck Smoothness") "lim)

Conversely, a support facing away from the aerosol-generating material may be arranged to contact the heater, and a smoother surface may provide more efficient heat transfer. Accordingly, in some cases, the support is arranged to have a rougher side facing the aerosol-generating material and a smoother side facing away from the aerosol-generating material.

In one particular case, the support may be a paper-backed foil; The paper layer is brought into contact with the aerosol generating material layer and the properties discussed in the previous paragraphs are provided by this contact. The foil backing is substantially impermeable, providing control of the aerosol flow path. The metal foil backing can also serve to conduct heat to the aerosol generating material.

In other cases, the foil layer of the paper-backed foil abuts the aerosol generating material. The foil is substantially impermeable, thereby preventing water provided to the aerosol-generating material from being absorbed into the paper, which could weaken its structural integrity.

In some cases, the support is formed of or includes a metal foil, such as aluminum foil. Metal supports may allow better conduction of thermal energy to the aerosol generating material. Additionally or alternatively, the metal foil can function as a susceptor in an induction heating system. In certain embodiments, the support includes a metal foil layer and a support layer, such as cardboard. In these embodiments, the metal foil layer may have a thickness of less than 20 μm, such as about 1 μm to about 10 μm, suitably about 5 μm.

In some cases, the support may have a thickness of about 0.017 mm to about 2.0 mm, suitably about 0.02 mm, 0.05 mm, or 0.1 mm to about 1.5 mm, 1.0 mm, or 0.5 mm.

The aerosol-generating material may be prepared as a gel, which may further include a solvent comprised in an amount of 0.1 to 50% by weight. However, inclusion of a solvent in which the flavor is soluble may reduce gel stability and the flavor may crystallize from the gel. Accordingly, in some cases, the gel does not contain a solvent in which the flavor is soluble.

One aspect of the invention relates to articles (also referred to herein as consumables). A consumable is an article, some or all of which is intended to be consumed during use by a user. The consumable may include or consist of an aerosol-generating composition. The consumable may include one or more other elements, such as a filter or an aerosol modifying substance. The consumable may include a heating element that, when used, emits heat to cause the aerosol-generating composition to generate an aerosol. The heating element may, for example, comprise a combustible material, or it may comprise a susceptor capable of being heated by penetration by a changing magnetic field.

Articles of the invention may be provided in any suitable shape. In some examples, the article is provided as a rod (eg, substantially cylindrical). The article provided as a rod may comprise an aerosol generating composition, optionally blended with cut tobacco, as a shredded sheet. Alternatively, or additionally, an article provided as a rod may comprise an aerosol-generating composition as a sheet, such as a sheet surrounding a rod of aerosol-generating material (e.g., tobacco, or a combination of tobacco and aerosol-generating material as described herein). can do. In some embodiments, the article includes a portion of a layer of an aerosol-generating composition disposed on a carrier. In examples, the article can have at least one substantially planar (flat) surface.

The aerosol-generating material may comprise or be in the form of an aerosol-generating membrane. The aerosol-generating membrane may be substantially free of botanical material. In particular, in some embodiments, the aerosol-generating membrane is substantially free of tobacco.

The aerosol-generating membrane can have a thickness of about 0.015 mm to about 1 mm. For example, the thickness may range from about 0.05 mm, 0.1 mm, or 0.15 mm to about 0.5 mm or 0.3 mm.

The aerosol-generating membrane may be continuous. For example, the membrane may comprise or be a continuous sheet of material. The sheets may be in the form of a wrapper, collected to form a gathered sheet, or shredded to form a shredded sheet. The shredded sheet may include one or more strands or strips of aerosol-generating material.

In one case, the aerosol-generating membrane is fractured and blended with other fractured aerosol-generating membranes. In certain embodiments, aerosol-generating membranes include different binders. In certain embodiments, the first aerosol-generating membrane includes a cellulosic binder and the second aerosol-generating membrane includes a non-cellulosic binder. For example, an aerosol-generating membrane comprising alginate is blended with an aerosol-generating membrane comprising CMC. Including aerosol generating membranes comprising different membranes can increase the temperature range over which the flavor is released.

In one case, a consumable for use in a non-flammable aerosol delivery system comprising a planar support with complete coverage of aerosol-generating material (e.g., a continuous aerosol-generating membrane) is provided. Figure 14 provides a schematic diagram of such a consumable, comprising a support layer (4) and a layer of aerosol-generating material (2).

The aerosol-generating membrane may be discontinuous, for example, the aerosol-generating membrane may comprise one or more discrete portions or zones of aerosol-generating material, such as dots, stripes or lines, which may be supported on a support. In such embodiments, the support may be planar or non-planar.

In some cases, the individual portions of the aerosol-generating material are substantially circular, cylindrical, or hemispherical. In some cases, there is a grid-shaped distribution of substantially round, cylindrical or hemispherical aerosol generating material.

In some cases, a consumable for use in a non-flammable aerosol delivery system is provided, comprising a planar support on which a discontinuous aerosol-generating film (comprising a plurality of discrete portions of aerosol-generating material) is deposited.

Figure 15 provides an example of a consumable 401, where a discontinuous aerosol-generating film (which includes distinct portions of aerosol-generating material 403) is provided on the consumable.

A susceptor is a material that can be heated by penetration through a changing magnetic field, such as an alternating magnetic field. The heating material may be an electrically conductive material, such that penetration into this heating material through a changing magnetic field causes inductive heating of the heating material. The heating material may be a magnetic material, such that its penetration by a changing magnetic field causes magnetic hysteresis heating of the heating material. The heating material can be both electrically conductive and magnetic, so that the heating material can be heated by both heating mechanisms.

Induction heating is a process in which an electrically conductive object is heated by permeating the object with a changing magnetic field. This process is described by Faraday's law of induction and Ohm's law. An induction heater may include an electromagnet and a device for passing a changing current, such as alternating current, through the electromagnet. When the electromagnet and the object being heated are properly positioned relative to each other such that the resulting changing magnetic field generated by the electromagnet penetrates the object, one or more eddy currents are created inside the object. An object has resistance to the flow of electric currents. Therefore, when these eddy currents are created in an object, their flow against the object's electrical resistance causes the object to heat up. This process is called Joule, ohmic or ohmic heating.

In some embodiments, the susceptor is in the form of a closed circuit. It has been found that when the susceptor is in the form of a closed circuit, the magnetic coupling between the susceptor and the electromagnet is strengthened during use, which results in greater or improved Joule heating.

Magnetic hysteresis heating is a process in which an object made of magnetic material is heated by penetrating it with a changing magnetic field. Magnetic materials can be considered to include many atomic-scale magnets or magnetic dipoles. When a magnetic field penetrates these materials, the magnetic dipoles align with the field. Thus, when a changing magnetic field, for example an alternating magnetic field such as that produced by an electromagnet, penetrates a magnetic material, the orientation of the magnetic dipoles changes depending on the changing magnetic field applied. This magnetic dipole reorientation causes heat generation in the magnetic material.

When an object is both electrically conductive and magnetic, permeating the object with a changing magnetic field can cause both Joule heating and magnetic hysteresis heating in the object. Moreover, the use of magnetic materials can strengthen the magnetic field, which can increase Joule heating.

In each of the above processes, heat is generated internally within the object itself rather than by external heat sources by heat conduction, and thus, through the selection of suitable object materials and geometry, appropriate changing magnetic field magnitude and orientation relative to the object, Increased temperature and more uniform heat distribution can be achieved. Moreover, induction heating and magnetic hysteresis heating do not require providing a physical connection between the source of the changing magnetic field and the object, allowing greater design freedom and control over the heating profile and lower costs.

The thickness values specified herein are average values for the thickness under discussion. In some cases, the thickness may vary by less than 25%, 20%, 15%, 10%, 5% or 1%.

The “thickness” of the aerosol-generating material refers to the shortest distance between the first and second surfaces. In embodiments where the aerosol-generating material is in the form of a sheet, the thickness of the aerosol-generating material is the shortest distance between a first planar surface of the sheet and a second planar surface of the sheet opposite the first planar surface of the sheet. In some cases, the aerosol-generating composition can have a thickness of about 0.015 mm to about 1.0 mm. Suitably, the thickness may range from about 0.05 mm, 0.1 mm or 0.15 mm to about 0.5 mm or 0.3 mm. The aerosol-generating material may include more than one layer, and the thickness described herein refers to the collective thickness of these layers.

In some cases, the aerosol-generating material can have a thickness of about 0.015 mm to about 1.0 mm. Suitably, the thickness may range from about 0.05 mm, 0.1 mm or 0.15 mm to about 0.5 mm or 0.3 mm. The aerosol-generating material may include more than one layer, and the thickness described herein refers to the collective thickness of these layers.

The aerosol-generating composition comprising the aerosol-generating material may have any suitable areal density, such as from 30 g/m ² to 120 g/m ² . In some embodiments, the aerosol-generating composition may have an areal density of about 30 to 70 g/m ² , or about 40 to 60 g/m ² . In some embodiments, the aerosol-generating composition has a weight of about 80 g/m ² to 120 g/m ² , or about 70 g/m ² to 110 g/m ² , or especially about 90 g/m ² to 110 g/m It can have an areal density of ² . These areal densities may be particularly suitable if the aerosol-generating composition is included in the aerosol-generating article/assembly in sheet form or as a shredded sheet (described further below).

One aspect of the invention provides a non-flammable aerosol delivery device comprising a non-flammable aerosol delivery system comprising an article as described herein, and a heater configured to non-combustively heat the aerosol-generating article. Non-flammable aerosol delivery systems may also be referred to as aerosol generating assemblies. Non-flammable aerosol delivery devices may be referred to as aerosol generating devices.

In some cases, in use, the heater may heat the aerosol-generating material to a temperature below 350°C, such as between 120°C and 350°C, without burning the aerosol-generating material. In some cases, the heater can heat the aerosol-generating composition to between 140°C and 250°C, or between 220°C and 280°C when in use, without burning. In some cases, when in use, substantially all of the aerosol-generating material is less than about 4 mm, 3 mm, 2 mm, or 1 mm from the heater. In some cases, the material is positioned about 0.010 mm to 2.0 mm, suitably about 0.02 mm to 1.0 mm, suitably 0.1 mm to 0.5 mm from the heater. These minimum distances may, in some cases, reflect the thickness of the carrier supporting the aerosol-generating material. In some cases, the surface of the aerosol generating material may directly contact the heater.

The heater is configured to non-combustively heat the aerosol-generating article, and thus the aerosol-generating composition. The heater may, in some cases, be a thin film electrical resistance heater. In other cases, the heater may include an induction heater, etc. The heater may be a combustible heat source or a chemical heat source that undergoes an exothermic reaction to generate heat when used. The aerosol generating assembly may include a plurality of heaters. The heater(s) may be powered by batteries.

The aerosol-generating article may further include cooling elements and/or filters. The cooling element (if present) may serve or function to cool the gaseous or aerosol components. In some cases, the cooling element may serve to cool the gas components such that they condense to form an aerosol. The cooling element may also serve to keep very hot parts of the non-flammable aerosol delivery device away from the user. The filter (if present) may include any suitable filter known in the art, such as a cellulose acetate plug.

That is, the aerosol generating assembly may be a heat-not-burn device. That is, it can hold solid tobacco-retaining material (and aerosol-generating material without liquid). In some cases, the aerosol generating material may include tobacco material. A non-combustion heating device is disclosed in WO 2015/062983 A2, incorporated by reference in its entirety.

In some cases, the aerosol generating assembly may be an electronic cigarette hybrid device. That is, it can contain solid aerosol-generating compositions and liquid aerosol-generating materials. In some cases, the aerosol-generating material may include nicotine. In some cases, the aerosol generating material may include tobacco material. In some cases, the aerosol-generating material may include tobacco material and a separate nicotine source. The separate aerosol-generating compositions can be heated by separate heaters, the same heater, or in one case, the downstream aerosol-generating material can be heated by the hot aerosol generated from the upstream aerosol-generating composition. An electronic cigarette hybrid device is disclosed in WO 2016/135331 A1, which is incorporated by reference in its entirety.

An aerosol-generating article (which may be referred to herein as an article, cartridge, or consumable) may be configured for use in a THP, electronic cigarette hybrid device, or other aerosol-generating device. In some cases, the article may further include a filter and/or cooling element (which is described above). In some cases, the aerosol-generating article may be surrounded by wrapping material, such as paper.

The aerosol-generating article may further include ventilation apertures. These may be provided on the side walls of the article. In some cases, ventilation apertures may be provided in the filter and/or cooling element. These apertures may allow cooling air to be drawn into the article during use, which may mix with heated volatile components thereby cooling the aerosol.

Aeration enhances the production of visible heated volatilized components from the article when the article is heated in use. The heated volatilized components become visible by a process of cooling the heated volatilized components such that supersaturation of the heated volatilized components occurs. The heated volatilized components are then subjected to droplet formation—otherwise known as nucleation—and eventually the size of the aerosol particles of the heated volatilized components increases with the heated volatilized components. It increases by further condensation of the heated components and coagulation of newly formed droplets from the heated volatilized components.

In some cases, the ratio of cooling air to the sum of cooling air and heated volatilized components (known as aeration ratio) is at least 15%. An aeration ratio of 15% allows heated volatilized components to be visualized by the method described above. The visibility of the heated volatilized ingredients allows the user to identify that the volatilized ingredients have been produced and adds to the sensory experience of the smoking experience.

In another example, the aeration ratio is 50% to 85% to provide additional cooling to the heated volatilized components. In some cases, the aeration ratio may be at least 60% or 65%.

In some cases, the aerosol generating composition may be included in the article/assembly in sheet form. In some cases, the aerosol-generating composition may be included as a flat sheet. In some cases, the aerosol-generating composition may be included in a flat sheet, bundled or corrugated sheet, crimped sheet, or rolled sheet (i.e., in tube form). In some such cases, the aerosol-generating material of these embodiments may be included in an aerosol-generating article/assembly as a sheet, such as a sheet surrounding a rod of aerosol-generating material (eg, tobacco). In some other cases, the aerosol-generating composition may be formed as a sheet and then broken up and incorporated into the article. In some cases, the shredded sheet may be mixed with cut rag tobacco and incorporated into the article.

In some cases, both the first and second aerosol-generating materials described herein can be formed as a sheet, then crushed and mixed together to form an aerosol-generating composition. The composition can then be incorporated into the article. In some cases, shredded sheets may also be mixed with cut rag tobacco and incorporated into the article.

In some examples, the aerosol-generating material in sheet form can have a tensile strength of about 200 N/m to about 900 N/m. In some instances, such as when the aerosol-generating material does not include filler, the aerosol-generating material has a tensile strength of 200 N/m to 400 N/m, or 200 N/m to 300 N/m, or about 250 N. It could be /m. These tensile strengths may be particularly suitable for embodiments where the aerosol-generating composition is formed into a sheet and then broken and incorporated into an aerosol-generating article. In some instances, such as when the aerosol-generating material includes a filler, the aerosol-generating material has a tensile strength of 600 N/m to 900 N/m, or 700 N/m to 900 N/m, or about 800 N/m. You can. These tensile strengths may be particularly suitable for embodiments where the aerosol-generating composition is included in the aerosol-generating article/assembly as a rolled sheet, suitably in the form of a tube.

In some embodiments, the aerosol-generating material is formed as a film on a support. The aerosol-generating membrane may be a continuous membrane or a discontinuous membrane, such as an arrangement of individual portions of the membrane on a support. In some cases, the aerosol-generating membrane does not include filler.

1 and 2, a partial cutaway cross-sectional and perspective view of an example of an aerosol-generating article 101 is shown. Article 101 is configured for use with a device having a power source and heater. The article 101 of this embodiment is particularly suitable for use with the device 1 shown in Figures 5 to 7, described below. In use, the article 101 can be removably inserted into the device shown in FIG. 5 at the insertion point 20 of the device 1 .

One example article 101 is in the form of a substantially cylindrical rod comprising a rod-shaped filter assembly 105 and a body of the aerosol-generating composition 103. The aerosol-generating composition includes the aerosol-generating materials described herein. In some embodiments, it may be included in sheet form. In some embodiments, the aerosol generating material may be included in the form of shredded sheets. In some embodiments, the aerosol-generating composition described herein may be incorporated in sheet form and shredded form.

Filter assembly 105 has three segments; It includes a cooling segment (107), a filter segment (109) and a mouth end segment (111). The article 101 has a first end 113, also known as the mouth end or proximal end, and a second end 115, also known as the distal end. The body of the aerosol-generating composition 103 is positioned toward the distal end 115 of the article 101. In one example, the cooling segment 107 is positioned adjacent the body of the aerosol-generating composition 103 between the body of the aerosol-generating composition 103 and the filter segment 109 such that the cooling segment 107 is positioned adjacent to the body of the aerosol-generating composition 103. It is in an abutting relationship with the composition 103 and the filter segment 109. In other examples, there may be a gap between the body of the aerosol-generating composition 103 and the cooling segment 107 and between the body of the aerosol-generating composition 103 and the filter segment 109. Filter segment 109 is positioned between cooling segment 107 and mouth end segment 111. Mouth end segment 111 is positioned toward proximal end 113 of article 101 adjacent filter segment 109. In one example, filter segment 109 is in abutting relationship with mouth end segment 111. In one embodiment, the overall length of filter assembly 105 is between 37 mm and 45 mm, and more preferably, the overall length of filter assembly 105 is 41 mm.

In one example, the rod of aerosol-generating composition 103 is 34 mm to 50 mm in length, suitably 38 mm to 46 mm in length, and suitably 42 mm in length.

In one example, the overall length of article 101 is between 71 mm and 95 mm, suitably between 79 mm and 87 mm, suitably around 83 mm.

The axial end of the body of the aerosol-generating composition 103 is visible at the distal end 115 of the article 101. However, in other embodiments, the distal end 115 of the article 101 may include an end member (not shown) that covers the axial end of the body of the aerosol-generating composition 103.

The body of the aerosol-generating composition 103 is coupled to the filter assembly 105 by an annular tipping paper (not shown), the tipping paper substantially surrounding the filter assembly 105 ( It is located around the circumference of the aerosol-generating composition (105) and extends partially along the length of the body of the aerosol-generating composition (103). In one example, the tipping paper is made from 58GSM standard tipping base paper. In one example, the tipping paper has a length between 42 mm and 50 mm, suitably about 46 mm.

In one example, cooling segment 107 is an annular tube, positioned around an air gap and defining the air gap within the cooling segment. The voids provide a chamber through which heated and volatilized components generated from the body of the aerosol-generating composition 103 flow. The cooling segment 107 is hollow to provide a chamber for aerosol accumulation, but is capable of absorbing axial compressive forces and bending moments that may occur during manufacturing and while the article 101 is being inserted into the device 1 in use. It has sufficient rigidity to withstand. In one example, the wall thickness of cooling segment 107 is approximately 0.29 mm.

Cooling segment 107 provides physical displacement between aerosol generating composition 103 and filter segment 109. The physical displacement provided by cooling segment 107 will provide a thermal gradient over the length of cooling segment 107. In one example, the cooling segment 107 has a temperature of at least 40° C. between the heated volatilized component entering the first end of the cooling segment 107 and the heated volatilized component exiting the second end of the cooling segment 107. It is configured to provide a temperature difference of In one example, the cooling segment 107 has a temperature of at least 60° C. between the heated volatilized component entering the first end of the cooling segment 107 and the heated volatilized component exiting the second end of the cooling segment 107. It is configured to provide a temperature difference of This temperature difference over the length of the cooling element 107 protects the temperature sensitive filter segment 109 from high temperatures of the aerosol-generating composition 103 when the aerosol-generating composition 103 is heated by the device 1 . If no physical displacement is provided between the filter segment 109 and the body of the aerosol-generating composition 103 and the heating elements of the device 1, the temperature sensitive filter segment 109 will be damaged during use, and so the It will not be able to perform the required functions effectively.

In one example, the length of cooling segment 107 is at least 15 mm. In one example, the length of the cooling segment 107 is 20 mm to 30 mm, more particularly 23 mm to 27 mm, more particularly 25 mm to 27 mm, suitably 25 mm.

The cooling segment 107 may be made of paper, provided that the cooling segment 107 is composed of a material that does not produce compounds of interest, for example toxic compounds, when the cooling segment 107 is in use adjacent to the heater of the device 1. means that In one example, the cooling segment 107 is made from a spirally wound paper tube that provides a hollow internal chamber but maintains mechanical rigidity. Helically wound paper tubes can meet the stringent dimensional accuracy requirements of high-speed manufacturing processes with respect to tube length, outer diameter, roundness and straightness.

In another example, cooling segment 107 is a recess created from stiff plug wrap or tipping paper. The rigid plug wrap or tipping paper is manufactured with sufficient rigidity to withstand axial compressive forces and bending moments that may occur during manufacturing and while the article 101 is being inserted into the device 1 in use.

Filter segment 109 may be formed of any filter material sufficient to remove one or more volatilized compounds from the heated volatilized components from the aerosol generating material. In one example, filter segment 109 is made from a mono-acetate material, such as cellulose acetate. Filter segment 109 provides cooling and irritation-reduction from heated volatilized components without depleting the amount of heated volatilized components to levels unsatisfactory to the user.

In some embodiments, a capsule (not shown) may be provided in the filter segment 109. This may be positioned substantially in the center of the filter segment 109 over the filter segment 109 diameter and along the length of the filter segment 109 . In other cases, it may be offset in one or more dimensions. The capsule, if present, may in some cases retain volatile ingredients such as flavoring agents or aerosol generating agents.

The density of the cellulose acetate tow material of the filter segment 109 controls the pressure drop across the filter segment 109, which in turn controls the draw resistance of the article 101. Accordingly, material selection of the filter segment 109 is important in controlling the resistance to attraction of the article 101. Additionally, the filter segments perform a filtration function in the article 101.

In one example, the filter segment 109 is made of grade 8Y15 filter tow material, which provides a filtration effect on the heated volatilized material while reducing the size of condensed aerosol droplets resulting from the heated volatilized material. .

The presence of the filter segment 109 provides an insulating effect by providing additional cooling to the heated volatilized components exiting the cooling segment 107. This additional cooling effect reduces the contact temperature of the user's lips on the surface of the filter segment 109.

In one example, filter segment 109 is between 6 mm and 10 mm in length, more suitably about 8 mm.

Mouth end segment 111 is an annular tube located circumferentially and defining a void within mouth end segment 111 . The voids provide a chamber for heated volatilized components flowing from the filter segment 109. The mouth end segment 111 is hollow to provide a chamber for aerosol accumulation, but to withstand axial compressive forces and bending moments that may occur during manufacturing and while the article is being inserted into the device 1 in use. Has sufficient rigidity. In one example, the wall thickness of mouth end segment 111 is approximately 0.29 mm. In one example, the length of the mouth end segment 111 is between 6 mm and 10 mm, suitably about 8 mm.

The mouth end segment 111 can be manufactured from a helically wound paper tube that provides a hollow inner chamber but maintains critical mechanical rigidity. The helically wound paper tubes have It can meet the stringent dimensional accuracy requirements of high-speed manufacturing processes.

The mouth end segment 111 provides the function of preventing any liquid condensation accumulated at the outlet of the filter segment 109 from coming into direct contact with the user.

In one example, mouth end segment 111 and cooling segment 107 may be formed of a single tube, with filter segment 109 located within that tube separating mouth end segment 111 and cooling segment 107. It must be understood that

3 and 4, a partial cutaway cross-sectional view and perspective view of an example of article 301 are shown. The reference signs shown in FIGS. 3 and 4 are the same as the reference signs shown in FIGS. 1 and 2 but are increased by 200.

In the example of article 301 shown in FIGS. 3 and 4 , a ventilation zone 317 is provided in article 301 to allow air to flow from the exterior of article 301 to the interior of article 301. . In one example, ventilation zone 317 takes the form of one or more ventilation holes 317 formed through the outer layer of article 301. Ventilation holes may be located in the cooling segment 307 to assist in cooling the article 301. In one example, the ventilation zone 317 includes one or more rows of holes, preferably each row of holes having an article (301) in a cross-section substantially perpendicular to the longitudinal axis of the article (301). 301) They are arranged in a circumferential direction around the perimeter.

In one example, there are between one and four rows of vent holes to provide ventilation for the article 301. Each row of ventilation holes may have 12 to 36 ventilation holes 317. The ventilation holes 317 may have a diameter of, for example, 100 to 500 μm. In one example, the axial separation between the rows of ventilation holes 317 is between 0.25 mm and 0.75 mm, preferably 0.5 mm.

In one example, the ventilation holes 317 are uniform in size. In another example, the vent holes 317 vary in size. The vent holes may be manufactured using any suitable technique, for example, one or more of the following techniques: laser technology, mechanical drilling of the cooling segment 307, or allowing the cooling segment 307 to be inserted into the article 301. Pre-drilling of cooling segments 307 prior to formation. Ventilation holes 317 are positioned to provide effective cooling to article 301.

In one example, the rows of vent holes 317 are located at least 11 mm from the proximal end 313 of the article, suitably the vent holes are between 17 mm and 20 mm from the proximal end 313 of the article 301. is located in The positions of the ventilation holes 317 are positioned so that the user does not block the ventilation holes 317 when the article 301 is used.

Providing rows of ventilation holes 17 mm to 20 mm from the proximal end 313 of the article 301 allows the article 301 to be fully inserted into the device 1, as can be seen in FIGS. 6 and 7 . When done, the ventilation holes 317 can be located on the outside of the device 1. By locating the vent holes on the outside of the device, unheated air can enter the article 301 from the outside of the device 1 through the vent holes and help cool the article 301.

The length of the cooling segment 307 is such that when the article 301 is fully inserted into the device 1 , the cooling segment 307 is partially inserted into the device 1 . The length of the cooling segment 307 has the first function of providing a physical gap between the heater arrangement of device 1 and the thermally sensitive filter arrangement 309, with vent holes 317 located in the cooling segment, It also provides a second function that allows the article 301 to be positioned on the outside of the device 1 when fully inserted into the device 1 . As can be seen in FIGS. 6 and 7 , most of the cooling elements 307 are located within device 1 . However, there is a portion of the cooling element 307 that extends outside the device 1 . It is this part of the cooling element 307 that extends out of the device 1 where the ventilation holes 317 are located.

Referring now in more detail to Figures 5-7, typically a device arranged to heat an aerosol-generating composition to volatilize at least one component of the aerosol composition to form an aerosol that can be inhaled. An example of 1) is shown. Device 1 is a heating device, which releases the compounds by heating the aerosol-generating composition without burning it.

The first end 3 is sometimes referred to herein as the mouth or proximal end 3 of the device 1 and the second end 5 is sometimes referred to herein as the distal end 5 of the device 1 do. The device 1 has an on/off button 7 that allows the entire device 1 to be switched on and off as desired by the user.

Device 1 includes a housing 9 for positioning and protecting the various internal components of device 1. In the example shown, the housing 9 has a top panel 17 generally defining the 'top' of the device 1 and a top panel 17 generally defining the 'bottom' of the device 1. It comprises a uni-body sleeve (11) surrounding the perimeter of the device (1) capped by a bottom panel (19). In another example, the housing includes a front panel, a rear panel, and a pair of opposing side panels in addition to the top panel 17 and bottom panel 19.

The top panel 17 and/or the bottom panel 19 may be removably secured to the single-body sleeve 11 to allow easy access to the interior of the device 1 or the single-body sleeve 11 ) can be “permanently” fixed, for example, preventing the user from accessing the interior of the device 1. In one example, panels 17 and 19 are made of a plastic material, including glass-filled nylon formed, for example, by injection molding, and are formed into a single-body sleeve. (11) is manufactured from aluminum, although other materials and other manufacturing processes may be used.

The top panel 17 of the device 1 has an opening 20 at the mouth end 3 of the device 1 through which an article 101 containing the aerosol-generating composition in use is provided. , 301) can be inserted into and removed from the device 1 by the user.

The housing 9 positions or secures the heater arrangement 23, control circuitry 25 and power source 27 therein. In this example, heater arrangement 23, control circuitry 25, and power source 27 are positioned side by side, with control circuitry 25 generally positioned between heater arrangement 23 and power source 27. Although directionally adjacent (i.e., adjacent when viewed from one end), other positions are possible.

Control circuitry 25 may include a controller, such as a microprocessor arrangement, constructed and arranged to control heating of the aerosol-generating composition within articles 101, 301, as discussed further below.

The power source 27 may be a battery, which may be, for example, a rechargeable battery or a non-rechargeable battery. Examples of suitable batteries include, for example, lithium-ion batteries, nickel batteries (e.g., nickel-cadmium batteries), alkaline batteries and/or the like. Battery 27 is electrically connected to heater arrangement 23 to supply power as needed and heats the aerosol-generating composition in the article under control of control circuitry 25 (as discussed, the aerosol-generating composition Volatilizes aerosol-generating materials without burning them).

The advantage of locating power source 27 laterally adjacent to heater arrangement 23 is that a physically large power source 27 can be used without unduly lengthening device 1 overall. As will be understood, in general, a physically larger power source 27 has a greater capacity (i.e. the total electrical energy that can be supplied, often measured in Amp-hours, etc.) and therefore has a greater capacity for device 1. Battery life will be longer.

In one example, the heater arrangement 23 is generally in the form of a hollow cylindrical tube having a hollow internal heating chamber 29 within which an article containing aerosol-generating material is placed. (101, 301) are inserted for heating when in use. Different arrangements for the heater arrangement 23 are possible. For example, heater arrangement 23 may comprise a single heating element or may be formed of a plurality of heating elements aligned along the longitudinal axis of heater arrangement 23. The or each heating element may be annular or tubular, or at least partially-annular or partially-tubular, around its circumference. In one example, the or each heating element may be a thin film heater. In another example, the or each heating element may be made from a ceramic material. Examples of suitable ceramic materials include alumina and aluminum nitride and silicon nitride ceramics, which can be deposited and sintered. Other heating, including, for example, inductive heating, infrared heater elements that heat by emitting infrared radiation, or resistive heating elements formed, for example, by resistive electrical winding. Arrays are possible.

In one particular example, heater arrangement 23 is supported by a stainless steel support tube and includes a polyimide heating element. The heater arrangement 23 is such that when the article 101, 301 is inserted into the device 1, substantially the entire body of the aerosol-generating composition 103, 303 of the article 101, 301 is in the heater arrangement 23. ) The dimensions are determined to be inserted into the inside.

The or each heating element may be arranged such that selected zones of aerosol-generating material can be heated independently, for example, sequentially (over time as discussed above) or together (simultaneously), as desired. You can.

In this example the heater arrangement 23 is surrounded along at least part of its length by a thermal insulator 31 . The insulation 31 helps reduce heat passing from the heater arrangement 23 to the outside of the device 1 . Insulation helps lower power requirements for heater arrangement 23 because it generally reduces heat loss. The insulation 31 also helps keep the exterior of the device 1 cool during operation of the heater arrangement 23 . In one example, the insulation 31 may be a double-walled sleeve that provides a low pressure zone between the two walls of the sleeve. That is, the insulation 31 may be, for example, a “vacuum” tube, i.e. a tube that is at least partially evacuated to minimize heat transfer by conduction and/or convection. Other arrangements for the insulation 31 are possible, including, for example, using insulating materials including suitable foam type materials in addition to or instead of a double wall sleeve.

The housing 9 may further comprise various internal support structures 37 to support the heating arrangement 23 as well as all internal components.

The device 1 has a collar 33 extending around the opening 20 and protruding from the opening 20 into the interior of the housing 9 and positioned between the collar 33 and one end of the vacuum sleeve 31. It further includes a generally tubular chamber 35. Chamber 35 further comprises cooling structures 35f, in this example spaced apart along the outer surface of chamber 35 and circumferentially around the outer surface of chamber 35. It includes a plurality of cooling fins 35f each arranged. When inserted into the device 1 over at least a portion of the length of the hollow chamber 35 , an air gap 36 exists between the hollow chamber 35 and the articles 101 , 301 . The void 36 is around the entire circumference of the article 101 , 301 over at least a portion of the cooling segment 307 .

The collar 33 is arranged circumferentially around the perimeter of the opening 20 and includes a plurality of ridges 60 protruding into the opening 20 . The ridges 60 are such that the open span of the opening 20 at the locations of the ridges 60 is smaller than the open span of the opening 20 at the locations without the ridges 60. Occupies space within the opening 20. Ridges 60 are configured to engage with articles 101 , 301 inserted into device 1 to assist in securing the device within device 1 . Open spaces (not shown in the figures) defined by adjacent pairs of ridges 60 and articles 101, 301 form ventilation paths around the exterior of articles 101, 301. These vent paths allow hot vapors escaping from the articles 101, 301 to exit the device 1 and cool air to exit the device 1 around the articles 101, 301 in the voids 36. Allow it to flow within.

In operation, the articles 101, 301 are removably inserted into the insertion point 20 of the device 1, as shown in FIGS. 5-7. In particular, referring to FIG. 6 , in one example, the body of the aerosol-generating composition 103, 303 positioned toward the distal end 115, 315 of the article 101, 301 is connected to the heater arrangement of device 1 ( 23) is fully accepted. The proximal ends 113, 313 of the articles 101, 301 extend from the device 1 and serve as a mouthpiece assembly for the user.

In operation, heater arrangement 23 will heat the article 101, 301 to volatilize at least one component of the aerosol-generating composition from the body of the aerosol-generating composition 103, 303.

The primary flow path for the heated volatilized components from the body of the aerosol-generating composition 103, 303 is axially, through the article 101, 301, and inside the cooling segment 107, 307. through the chamber, through the filter segments 109, 309, and through the mouse end segments 111, 313 to the user. In one example, the temperature of the heated volatilized components resulting from the body of the aerosol-generating composition is between 60° C. and 250° C., which may exceed the inhalation temperature acceptable to the user. As the heated volatilized components move through the cooling segments 107, 307, they cool and some of the volatilized components will condense on the inner surfaces of the cooling segments 107, 307.

In the examples of article 301 shown in FIGS. 3 and 4 , cooling air may enter cooling segment 307 through vent holes 317 formed in cooling segment 307 . This cooling air will mix with the heated volatilized components and provide additional cooling to the heated volatilized components.

Another aspect of the invention provides a method of making an aerosol-generating composition according to the first aspect.

The method includes the steps of (a) forming a slurry comprising components of an aerosol generating material or precursors thereof, (b) forming a slurry layer, (c) selectively curing the slurry, and (d) drying. It may include forming an aerosol generating material.

(b) Forming the slurry layer may include, for example, spraying, casting, or extruding the slurry. In some cases, the slurry layer is formed by electrospraying the slurry. In some cases, the slurry layer is formed by casting the slurry.

In some cases, steps (b) and/or (c) and/or (d) may occur at least partially simultaneously (eg, during electrospraying). In some cases, steps (b), (c) and (d) may occur sequentially.

In some cases, the slurry is applied to the support. The layer can be formed on a support.

In examples, slurries include binders, aerosol generating agents, flavors, and emulsifiers. The slurry may include these ingredients in any of the ratios given herein in relation to the composition of the aerosol generating composition. For example, the slurry may include:

an aerosol generating agent in an amount of from about 1 to about 80% by weight of the aerosol generating material;

one or more binders, the total amount of binders being from about 5 to about 50 weight percent of the aerosol-generating material, and the one or more binders comprising a cellulose-based binder;

Flavor in an amount from about 0.1 to about 60% by weight of the aerosol generating material;

Emulsifier in an amount of from about 1 to about 25% by weight of the aerosol-generating material; and

Optionally, fillers are included.

(c) Curing the gel may include adding a setting agent or crosslinking agent to the slurry. For example, the slurry may include sodium, potassium, or ammonium alginate as a gel-precursor, and a curing agent or cross-linking agent including a calcium source (e.g., calcium chloride) may be added to the slurry to form a calcium alginate gel. can be formed.

The total amount of curing agents or crosslinking agents, such as calcium sources, may be 0.5 to 5% by weight (calculated on a dry weight basis). Adding too little hardener or crosslinker may cause the aerosol-generating material to fail to stabilize the aerosol-generating material components and cause these components to separate from the aerosol-generating material. Adding too much hardener or crosslinker will result in the aerosol-generating material becoming very sticky and resulting in poor handling properties.

Alginate salts are derivatives of alginic acid and are typically high molecular weight polymers (10 to 600 kDa). Alginic acid is a copolymer of β-D-mannuronic acid (M) and α-L-guluronic acid (G) units (blocks) linked together with (1,4)-glycosidic bonds to form a polysaccharide. am. By adding calcium cations, the alginate crosslinks to form a gel. Alginate salts with high G monomer content can more easily form a gel upon addition of a calcium source. Accordingly, in some cases, the gel-precursor is an alginate wherein at least about 40%, 45%, 50%, 55%, 60% or 70% of the monomer units in the alginate copolymer are α-L-guluronic acid (G) units. May contain salt.

For example, if the only binder present is a cellulose-based binder such as CMC, curing the gel in step (c) may not be required. When a non-cellulosic binder, such as alginate, is present, the slurry may further include a curing agent or cross-linking agent, and/or a curing agent or cross-linking agent may be applied to the slurry. In such cases, the method may further include step (c) of curing the slurry.

Drying step (d), in some cases, removes from about 50%, 60%, 70%, 80% or 90% to about 80%, 90% or 95% by weight of the water in the slurry (WWB ) can be removed.

The drying step (d) may in some cases reduce the casting material thickness by at least 80%, suitably by 85% or 87%. For example, the slurry can be cast to a thickness of 2 mm and the resulting dried aerosol-generating material can have a thickness of 0.2 mm.

During step (d), the slurry may be heated to remove at least about 60%, 70%, 80%, 85%, or 90% by weight of the solvent.

The aerosol-generating membrane is formed by combining the aerosol-forming agent, binders, flavor, emulsifier, solvent, and any optional additional ingredients to form a slurry, and then heating the slurry to volatilize at least a portion of the solvent to form an aerosol-generating membrane. It can be formed by forming. The slurry can be heated to remove at least about 60%, 70%, 80%, 85%, or 90% by weight of the solvent.

The slurry itself may also form part of the invention. In some cases, the slurry solvent may consist essentially of water. In some cases, the slurry may include about 50%, 60%, 70%, 80% or 90% by weight (WWB) of solvent.

In cases where the solvent consists of water, the dry weight content of the slurry may match the dry weight content of the aerosol-generating material. Accordingly, the discussion herein regarding solid compositions is explicitly disclosed in combination with the slurry embodiment of the invention.

According to aspects of the invention, a method of generating an aerosol is provided using a non-flammable aerosol delivery system as described herein. In some embodiments, the method includes heating the aerosol-generating material to a temperature of 350° C. or lower. In some embodiments, the method includes heating the aerosol-generating material to a temperature of about 220 °C to about 280 °C. In some embodiments, the method includes heating at least a portion of the aerosol-generating material to a temperature of about 220 °C to about 280 °C during a use session.

As used herein, “session of use” refers to a single period of use of a non-flammable aerosol delivery system by a user. A usage session begins at the point where power is first supplied to at least one heating unit present in the heating assembly. The device will be ready for use after a certain period of time has elapsed from the start of the use session. The usage session ends at a point where any of the heating elements of the aerosol generating device are de-energized. The end of the use session coincides with the point at which the smoking article is depleted (the point at which the total particulate matter yield (mg) in each puff will be considered unacceptably low by the user). can do. A session will have a duration of multiple puffs. The session may have a duration of less than 7 minutes, or 6 minutes, or 5 minutes, or 4 minutes and 30 seconds, or 4 minutes, or 3 minutes and 30 seconds. In some embodiments, a usage session may have a duration of 2 minutes to 5 minutes, or 3 minutes to 4.5 minutes, or 3.5 minutes to 4.5 minutes, or suitably 4 minutes. A session may be initiated by the user activating a button or switch on the device, causing at least one heating element to begin increasing temperature.

In some embodiments, during a use session, at least 20%, or at least 30%, 40% or 50% by weight of the flavor present in the aerosol generating material is aerosolized. That is, after a session of use, the amount of flavor in the aerosol generating material is depleted by 20%, 30%, 40% or 50% by weight. The ratio of cellulosic binder to non-cellulosic binder in the aerosol-generating material as described herein may allow for more efficient delivery of the active agent to the user (e.g., a higher proportion of flavor may be released from the aerosol-generating material). aerosolized).

Illustrative Embodiments

1. An aerosol-generating material or slurry as defined in the Summary of the Disclosure.

2. The aerosol-generating material or slurry of Example 1 comprising about 0.1 to 50% by weight of flavor.

3. The aerosol-generating material or slurry of Example 2 comprising about 1 to 50 weight percent flavor.

4. The aerosol-generating material or slurry of Example 1 comprising about 5 to 50 weight percent flavor.

5. The aerosol-generating material or slurry of Example 4 comprising about 10 to 45 weight percent flavor.

5A. The aerosol-generating material or slurry of Example 5 comprising about 10 to 25 weight percent flavor.

5B. The aerosol-generating material or slurry of Example 5A comprising about 10 to 20 weight percent flavor.

5C. The aerosol-generating material or slurry of Example 5B comprising about 15 to 20 weight percent flavor.

6. The aerosol-generating material or slurry of Example 4 comprising about 15 to 45 weight percent flavor.

7. The aerosol-generating material or slurry of Example 1 comprising about 20 to 50 weight percent flavor.

8. The aerosol-generating material or slurry of Example 7 comprising about 25 to 50 weight percent flavor.

9. The aerosol-generating material or slurry of Example 8 comprising about 30 to 50 weight percent flavor.

10. The aerosol-generating material or slurry of Example 1 comprising about 30 to 45 weight percent flavor.

11. The aerosol-generating material or slurry of Example 10 comprising about 35 to 50 weight percent flavor.

12. The aerosol-generating material or slurry of Example 11 comprising about 35 to 45 weight percent flavor.

12a. The aerosol-generating material or slurry of Example 1 comprising about 5 to 25 weight percent flavor.

12b. The aerosol-generating material or slurry of any of the preceding embodiments, wherein the flavor comprises (or is) menthol.

12c. The aerosol-generating material or slurry of any one of Examples 1-12a, wherein the flavor comprises (or is) spearmint.

13. The aerosol-generating material or slurry according to any of the preceding examples, comprising about 10 to 50 weight percent of one or more binders.

13a. The aerosol-generating material or slurry of Example 13 comprising about 10 to 45 weight percent of one or more binders.

14. The aerosol-generating material or slurry of Example 13a comprising about 10 to 40 weight percent of one or more binders.

15. The aerosol-generating material or slurry of Example 14 comprising about 10 to 35 weight percent of one or more binders.

16. The aerosol-generating material or slurry of Example 15 comprising about 10 to 30 weight percent of one or more binders.

17. The aerosol-generating material or slurry of Example 16 comprising about 10 to 25 weight percent of one or more binders.

18. The aerosol-generating material or slurry of any one of examples 1-12, comprising about 15 to 45 weight percent of one or more binders.

19. The aerosol-generating material or slurry of Example 18 comprising about 15 to 40 weight percent of one or more binders.

20. The aerosol-generating material or slurry of Example 19 comprising about 15 to 35 weight percent of one or more binders.

21. The aerosol-generating material or slurry of Example 20 comprising about 15 to 30 weight percent of one or more binders.

22. The aerosol-generating material or slurry of Example 21 comprising about 15 to 25 weight percent of one or more binders.

23. The aerosol-generating material or slurry of any of examples 1-12, comprising about 20 to 45 weight percent of one or more binders.

24. The aerosol-generating material or slurry of Example 23 comprising about 20 to 40 weight percent of one or more binders.

25. The aerosol-generating material or slurry of Example 24 comprising about 20 to 35 weight percent of one or more binders.

26. The aerosol-generating material or slurry of Example 25 comprising about 20 to 30 weight percent of one or more binders.

27. The aerosol-generating material or slurry of Example 26 comprising about 20 to 25 weight percent of one or more binders.

28. The aerosol-generating material or slurry of any of the preceding examples, comprising about 5 to 35 weight percent of an aerosol-generating agent.

29. The aerosol-generating material or slurry of Example 28 comprising about 10 to 35 weight percent of an aerosol-generating agent.

30. The aerosol-generating material or slurry of any one of examples 1-27, comprising about 5 to 30 weight percent of an aerosol generating agent.

30A. The aerosol-generating material or slurry of any one of Examples 1-27, comprising about 5 to 25 weight percent of an aerosol generating agent.

30B. The aerosol-generating material or slurry of any one of Examples 1-27, comprising about 5 to 15 weight percent of an aerosol generating agent.

31. The aerosol-generating material or slurry of Example 30, comprising about 10 to 30 weight percent of an aerosol-generating agent.

32. The aerosol-generating material or slurry of Example 31 comprising about 10 to 25 weight percent of an aerosol-generating agent.

33. The aerosol-generating material or slurry of Example 32 comprising about 10 to 20 weight percent of an aerosol-generating agent.

34. The aerosol-generating material or slurry of any one of examples 1-27, comprising about 12-30% by weight of an aerosol-generating agent.

35. The aerosol-generating material or slurry of Example 34 comprising about 12 to 25 weight percent of an aerosol-generating agent.

36. The aerosol-generating material or slurry of Example 35 comprising about 12 to 20 weight percent of an aerosol-generating agent.

37. The aerosol-generating material or slurry of any of the preceding examples, comprising about 1 to 20 weight percent of an emulsifier.

37a. The aerosol-generating material or slurry of Example 37 comprising about 1 to 15 weight percent of an emulsifier.

37b. The aerosol-generating material or slurry of Example 37a comprising about 1 to 12 weight percent emulsifier.

38. The aerosol-generating material or slurry of Example 37b comprising about 1 to 10 weight percent emulsifier.

39. The aerosol-generating material or slurry of Example 38 comprising about 1 to 7 weight percent emulsifier.

40. The aerosol-generating material or slurry of any of Examples 1-36, comprising about 3 to 12 weight percent emulsifier.

41. The aerosol-generating material or slurry of Example 40 comprising about 3 to 10 weight percent emulsifier.

42. The aerosol-generating material or slurry of Example 41 comprising about 3 to 7 weight percent emulsifier.

43. The aerosol-generating material or slurry of any one of Examples 1-36, comprising about 5 to 12 weight percent emulsifier.

44. The aerosol-generating material or slurry of Example 43 comprising about 5 to 10 weight percent emulsifier.

45. The aerosol-generating material or slurry of Example 44 comprising about 5 to 7 weight percent emulsifier.

46. In any of the preceding examples, the aerosol generating agent is glycerol, propylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, 1,3-butylene glycol, erythritol, meso-erythritol, ethyl vanillatate. , ethyl laurate, diethyl subrate, triethyl citrate, triacetin, diacetin mixture, benzyl benzoate, benzyl phenyl acetate, tributyrin, lauryl acetate, lauric acid, myristic acid, and propylene carbonate. An aerosol-generating material or slurry containing (or having) one or more.

47. The aerosol-generating material or slurry of Example 46, wherein the aerosol-generating agent comprises (or has) one or more of erythritol, propylene glycol, glycerol, and triacetin.

48. The aerosol generating material or slurry of Example 46 or Example 47, wherein the aerosol generating agent comprises (or is) glycerol, optionally in combination with propylene glycol.

49. In any of the preceding examples, the cellulosic binder is hydroxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, carboxymethylcellulose (CMC), hydroxypropyl methylcellulose (HPMC), methyl cellulose, ethyl cellulose. , an aerosol-generating material or slurry comprising (or having) one or more compounds selected from cellulose acetate (CA), cellulose acetate butyrate (CAB), and cellulose acetate propionate (CAP).

50. The aerosol-generating material or slurry of Example 49, wherein the cellulosic binder comprises (or is) one or more compounds selected from hydroxyethyl cellulose, hydroxypropyl cellulose, and/or carboxymethylcellulose.

51. The aerosol-generating material or slurry of Example 49 or Example 50, wherein the cellulose-based binder comprises (or is) carboxymethylcellulose.

52. The aerosol-generating material or slurry of any of the preceding examples, wherein the one or more binders include a cellulosic binder and a non-cellulosic binder.

53. The method of Example 52, wherein the non-cellulosic binder comprises one or more compounds selected from alginates, pectins, starches (and derivatives), gums, silica or silicone compounds, clays and/or polyvinyl. An aerosol-generating material or slurry that is (or is) an aerosol-generating material.

54. The method of Example 52 or 53, wherein the non-cellulosic binder is alginates, pectins, pullulan, xanthan gum, guar gum, carrageenan, agarose, gum acacia, humed silica, PDMS, An aerosol-generating material or slurry comprising (or having) one or more compounds selected from sodium silicate, kaolin and/or polyvinyl alcohol.

55. The method of Example 52 or Example 53, wherein the binder is one or more of hydroxyethyl cellulose, hydroxypropyl cellulose and/or carboxymethyl cellulose and alginates, pectins, pullulan, xanthan gum, guar gum, carrageenan An aerosol-generating material or slurry comprising one or more of: , agarose, gum acacia, fumed silica, PDMS, sodium silicate, kaolin, and polyvinyl alcohol.

56. The aerosol-generating material or slurry of any of the preceding embodiments, wherein the binder comprises (or consists of) carboxymethyl cellulose and alginate.

57. The aerosol-generating material or slurry of any of examples 52-56, wherein the weight ratio of cellulosic binder to non-cellulosic binder is 1:4 to 4:1.

58. The aerosol-generating material or slurry of Example 57, wherein the weight ratio of cellulosic binder to non-cellulosic binder is 2:3 to 7:3.

58A. The aerosol-generating material or slurry of Example 57, wherein the weight ratio of cellulosic binder to non-cellulosic binder is from about 1:1 to about 1:2.

59. The aerosol-generating material or slurry of Example 58, wherein the weight ratio of cellulosic binder to non-cellulosic binder is from about 2:3 to about 3:2.

60. The aerosol-generating material or slurry of Example 59, wherein the weight ratio of cellulosic binder to non-cellulosic binder is 1:1 to 3:2.

61. The aerosol generating material or slurry of any of examples 52-56, wherein the weight ratio of cellulosic binder to non-cellulosic binder is >1:1.

62. An aerosol-generating material or slurry according to any of the preceding examples, wherein no crosslinker is present.

63. The aerosol-generating material or slurry of any of Examples 1-61 comprising a crosslinker.

64. The aerosol-generating material or slurry of Example 63, wherein the crosslinking agent comprises calcium ions.

65. The aerosol-generating material or slurry of Example 63 or Example 64 comprising about 0.5 to 5 weight percent crosslinker.

66. An aerosol-generating material or slurry according to any of the preceding embodiments, further comprising one or more other functional materials.

67. The aerosol-generating material or slurry according to any of the preceding embodiments, further comprising one or more fillers.

68. The aerosol-generating material or slurry of Example 67, wherein the fillers are selected from inorganic filler materials, wood pulp, hemp fiber, cellulose and cellulose derivatives, such as wood pulp and/or MCC.

68A. The aerosol-generating material or slurry of any one of Examples 1-66, wherein the aerosol-generating material comprises less than 20% filler by weight.

68B. The aerosol-generating material or slurry of any one of Examples 1-66, wherein the aerosol-generating material comprises less than 10% filler by weight.

68C. The aerosol-generating material or slurry of any one of Examples 1-66, wherein the aerosol-generating material comprises less than 5% filler by weight.

68D. The aerosol-generating material or slurry of any one of Examples 1-66, wherein the aerosol-generating material comprises less than 1% filler by weight.

68E. The aerosol-generating material or slurry of any one of Examples 1-66, wherein the aerosol-generating material does not include filler.

68F. The aerosol-generating material or slurry of any one of Examples 1-66, wherein the aerosol-generating material comprises less than 60% filler by weight.

68G. The aerosol-generating material or slurry of any one of Examples 1-66, wherein the aerosol-generating material comprises from about 40 to about 60 weight percent filler.

68H. The aerosol-generating material or slurry of any one of Examples 1-66, wherein the aerosol-generating material comprises from about 45 to about 55 weight percent filler.

69. The aerosol-generating material or slurry of Example 68, wherein the aerosol-generating material or slurry does not include calcium carbonate, such as chalk.

70. The aerosol-generating material or slurry of any of the preceding embodiments, wherein the aerosol-generating material or slurry does not include fibrous material.

71. The aerosol-generating material or slurry of any of the preceding embodiments, wherein the aerosol-generating material or slurry does not include tobacco fibers.

71a. An aerosol-generating material or slurry according to any of the preceding embodiments, wherein the aerosol-generating material comprises caramel.

72. According to any of the preceding embodiments, the aerosol generating material consists of or consists essentially of binders, water, aerosol generating agents, flavors, emulsifiers and optionally active substances and/or fillers. aerosol-generating material.

73. The aerosol-generating material according to any of the preceding embodiments, wherein the aerosol-generating material consists of or consists essentially of a binder, water, an aerosol-generating agent, a flavoring agent and an emulsifier.

74. The aerosol-generating material according to any of the preceding embodiments, wherein the aerosol-generating material is on a support.

75. An aerosol-generating composition comprising an aerosol-generating material according to any of the preceding examples.

76. The method of embodiment 75, further comprising a second aerosol-generating material having a different composition, the aerosol-generating material comprising:

an aerosol generating agent in an amount of from about 1 to about 80% by weight of the aerosol generating material;

One or more binders, the total amount of binders being from about 5 to about 50 weight percent of the aerosol-generating material;

Flavor in an amount from about 0.1 to about 60% by weight of the aerosol generating material;

Emulsifier in an amount of from about 1 to about 25% by weight of the aerosol-generating material; and

Optionally, fillers are included.

76a. The method of Example 76, wherein the second aerosol generating material comprises:

an aerosol generating agent in an amount of from about 1 to about 80% by weight of the aerosol generating material;

One or more binders, the total amount of binders being from about 10 to about 50 weight percent of the aerosol-generating material;

Flavor in an amount from about 0.1 to about 60% by weight of the aerosol generating material;

Emulsifier in an amount of from about 1 to about 15% by weight of the aerosol-generating material; and

Optionally, fillers are included.

77. The aerosol-generating composition of Example 76 or 76a, wherein the second aerosol-generating material is as defined in any of Examples 1-48 or 62-74.

78. The aerosol generating material of Example 76, Example 76a, or Example 77, wherein the binder in the first aerosol generating material comprises a cellulosic binder and the binder in the second aerosol generating material comprises a non-cellulosic binder. Composition.

78A. The aerosol-generating composition of Example 78, wherein the binder in the first aerosol-generating material comprises a cellulosic binder and the binder in the second aerosol-generating material comprises a non-cellulosic binder.

79. The method of Example 78 or Example 78A, wherein the cellulose-based binder is hydroxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, carboxymethylcellulose (CMC), hydroxypropyl methylcellulose (HPMC), methyl cellulose, An aerosol-generating composition comprising (or having) one or more compounds selected from ethyl cellulose, cellulose acetate (CA), cellulose acetate butyrate (CAB), and cellulose acetate propionate (CAP).

80. The aerosol-generating composition of Example 79, wherein the cellulosic binder comprises (or is) one or more compounds selected from hydroxyethyl cellulose, hydroxypropyl cellulose, and/or carboxymethylcellulose.

81. The aerosol-generating composition of Example 80, wherein the cellulosic binder comprises (or is) carboxymethylcellulose.

82. The method of any one of examples 78-81, wherein the non-cellulosic binder is alginates, pectins, starches (and derivatives), gums, silica or silicone compounds, clays and/or or polyvinyl alcohol.

83. The method of Example 82, wherein the non-cellulosic binder is alginates, pectins, pullulan, xanthan gum, guar gum, carrageenan, agarose, gum acacia, fumed silica, PDMS, sodium silicate, kaolin and/ or polyvinyl alcohol.

84. The aerosol-generating composition of Example 83, wherein the non-cellulosic binder comprises alginate.

84A. The aerosol-generating composition of Example 78, wherein the binder in the first aerosol-generating material comprises CMC and the binder in the second aerosol-generating material comprises alginate.

84B. The aerosol-generating composition of Example 78, wherein the binder in the first aerosol-generating material is CMC and the binder in the second aerosol-generating material is alginate.

85. The aerosol-generating composition of any one of Examples 76-84B, wherein the weight ratio of the first aerosol-generating material to the second aerosol-generating material is from 1:4 to 4:1.

86. The aerosol-generating composition of Example 85, wherein the weight ratio of the first aerosol-generating material to the second aerosol-generating material is from 2:3 to 3:2.

87. The aerosol-generating composition of Example 86, wherein the weight ratio of the first aerosol-generating material to the second aerosol-generating material is about 1:1.

88. The aerosol-generating composition of any one of examples 75-87, further comprising one or more other functional materials.

89. The method of any one of examples 75-88, wherein the other functional materials include one or more pH adjusters, colorants, preservatives, binders, fillers, stabilizers, and/or antioxidants. An aerosol-generating composition.

90. The aerosol-generating composition of Example 89, wherein the other functional materials comprise one or more fillers.

91. The aerosol-generating composition of embodiment 89 or 90, wherein the fillers are selected from inorganic filler materials, wood pulp, hemp fiber, cellulose and cellulose derivatives.

91a. The aerosol-generating composition of Example 89 or Example 90, wherein the fillers are selected from maltodextrin or microcrystalline cellulose.

91b. The aerosol-generating composition of Example 89 or Example 90, wherein the fillers have a density of less than about 2 g/cm3.

91c. The aerosol-generating composition of Example 91b, wherein the fillers have a density of less than about 0.5 g/cm3.

91d. The aerosol-generating composition of Example 91c, wherein the fillers have a density of less than about 0.3 g/cm3.

92. The aerosol-generating composition of any one of examples 75-91d, wherein the aerosol-generating composition does not include calcium carbonate such as chalk.

93. The aerosol-generating composition of any one of examples 75-90 or 92, wherein the aerosol-generating composition does not include fibrous material.

94. The aerosol-generating composition of any one of examples 75-93, wherein the aerosol-generating composition does not include tobacco fibers.

95. The aerosol-generating composition of any one of examples 75-94, comprising a total of about 50 to 100% by weight (WWB) of aerosol-generating material.

96. The aerosol-generating composition of any one of examples 75-94, comprising a total of about 50 to 95 weight percent (WWB) of aerosol-generating material.

97. The aerosol-generating composition of any one of examples 75-94, comprising a total of about 50 to 90% by weight (WWB) of aerosol-generating material.

98. The aerosol-generating composition of any one of examples 75-94, comprising a total of about 60 to 100% by weight (WWB) of aerosol-generating material.

99. The aerosol-generating composition of any one of examples 75-94, comprising a total of about 60 to 95 weight percent (WWB) of aerosol-generating material.

100. The aerosol-generating composition of any one of Examples 75-94, comprising a total of about 60 to 90% by weight (WWB) of aerosol-generating material.

101. The aerosol-generating composition of any one of Examples 75-94, comprising a total of about 70 to 100% by weight (WWB) of aerosol-generating material.

102. The aerosol-generating composition of any one of Examples 75-94, comprising a total of about 70 to 95 weight percent (WWB) of aerosol-generating material.

103. The aerosol-generating composition of any one of Examples 75-94, comprising a total of about 70 to 90% by weight (WWB) of aerosol-generating material.

104. The aerosol-generating composition of any one of examples 75-94, consisting of or consisting essentially of aerosol-generating material(s).

105. A consumable for use in a non-flammable aerosol-dispensing device, comprising the aerosol-generating composition of any one of Examples 75-104.

106. A non-flammable aerosol delivery system, comprising the consumables of Example 105 and a non-flammable aerosol delivery device.

107. Consumables for use in the non-flammable aerosol delivery device of Example 105, or the non-flammable aerosol delivery system of Example 106, wherein the non-flammable aerosol delivery device is a non-combustible heating device. consumable or non-flammable aerosol delivery system for use.

108. A consumable for use in the non-flammable aerosol delivery device of Example 105, or the non-flammable aerosol delivery system of Example 106, wherein the non-flammable aerosol delivery device is an electronic tobacco hybrid device. A consumable or non-flammable aerosol delivery system for use in an aerosol delivery device.

109. A method of forming an aerosol-generating material as defined in any one of Examples 1-73, comprising:

(a) providing a slurry comprising flavor, binder, aerosol generating agent, emulsifier, solvent and any optional additional ingredients of aerosol generating material;

(b) forming a slurry layer;

c) selectively curing the slurry layer; and

(d) drying the slurry to form the aerosol-generating material.

110. The method or slurry of Example 109 or the slurry of any of Examples 1-71, wherein the solvent comprises water.

111. The method of Example 109 or the slurry of any one of Examples 1 to 71, wherein the solvent essentially consists of or consists of water.

112. The method of Examples 109-111 or the slurry of any one of Examples 1-71, 110, or 111, wherein the slurry is about 50% by weight, 60% by weight, 70% by weight, A method or slurry comprising 80% or 90% by weight of solvent (WWB).

examples

Exemplary, non-limiting formulations for twelve aerosol-generating compositions containing aerosol-generating materials are provided in Table 1 below. Percentages are given based on dry weight.

Formulations binder binder
Content weight% Glycerol weight% Guar weight% Wood Pulp Weight % Menthol weight% Other weight% 1 (comparative example) alginate 23.5 17.6 5.9 11.8 41.2 2 C.M.C. 23.5 17.6 5.9 11.8 41.2 3 H.E.C. 23.5 17.6 5.9 11.8 41.2 4 CMC-Alginate (50/50 weight ratio) 11.75 : 11.75. 17.6 5.9 11.8 41.2 5 CMC-HEC (50/50 weight ratio) 11.75 : 11.75. 17.6 5.9 11.8 41.2 6 HEC-Alginate (50/50 weight ratio) 11.75 : 11.75. 17.6 5.9 11.8 41.2 7 CMC-Alginate (40/60 weight ratio) 9.4:14.1. 17.6 5.9 11.8 41.2 8 CMC-Alginate (60/40 weight ratio) 14.1:9.4. 17.6 5.9 11.8 41.2 9 CMC-Alginate (70/30 weight ratio) 16.45:7.05. 17.6 5.9 11.8 41.2 10 CMC-Alginate (60/40 weight ratio) 11.3:7.5. 17.6 5.9 17.7 40 11 CMC-Alginate (60/40 weight ratio) 11.3:7.5. 17.6 5.9 15.7 40 2 (caramel) 12 CMC-Alginate (60/40 weight ratio) 11.3:7.5. 10 5.9 17.7 16 31.6(MCC)

Some of the above formulations were tested and their flavor (i.e. menthol) release profiles were obtained (see Figures 8-13).

Figure 8 shows the release profile of the flavor (in this case menthol) from Formulation 1, showing the flavor release at 190-200°C.

In comparison, the temperature at which the flavor (i.e., menthol) is released can be increased to about 250° C. by using CMC instead of alginate (see Formulation 2 and Figure 9). As discussed above, cellulose-based binders, such as CMC, may be preferred over other binders (such as alginates) for reasons of reduced cost and/or ease of manufacture.

If a lower flavor release temperature is desired than that achieved when using CMC alone, mixtures of CMC and alginate can be used (see Formulations 4 and Formulations 7 to 9 and Figures 10 to 13). Accordingly, the combination of cellulosic and non-cellulosic binders (e.g., CMC and alginate) allows the flavor release temperature to be adjusted, while also providing reduced costs and/or better results than formulations containing alginate alone. Allows easy manufacturing. Formulations containing a combination of CMC and alginate also exhibited increased flavor release lifetime.

Finally, as can be seen from the comparison of Figures 10-13, combining cellulosic binders (e.g., CMC) with non-cellulosic binders (e.g., alginates) in certain ratios produces aerosols when heated. The temperature at which the flavor is released from the material and/or the point in the use session at which the flavor is released can be influenced. For example, by increasing the ratio of CMC to alginate, the flavor release temperature can be increased.

Claims (36)

As an aerosol generating material,
an aerosol-generating agent in an amount of from about 1 to about 80% by weight of the aerosol-generating material;
one or more binders, the total amount of binders being from about 5 to about 50 weight percent of the aerosol-generating material, and the one or more binders comprising a cellulose-based binder;
Flavor in an amount from about 0.1 to about 60% by weight of the aerosol generating material;
an emulsifier in an amount of from about 1 to about 25% by weight of the aerosol-generating material; and
Optionally comprising filler,
Aerosol-generating material. According to claim 1,
The one or more binders include a cellulosic binder and a non-cellulosic binder.
Aerosol-generating material. According to claim 1 or 2,
The cellulose-based binder includes carboxymethylcellulose,
Aerosol-generating material. According to clause 2,
The non-cellulosic binder includes alginate,
Aerosol-generating material. According to clause 2,
The one or more binders include carboxymethyl cellulose and alginate,
Aerosol-generating material. According to claim 2 or 5,
wherein the weight ratio of the cellulosic binder to the non-cellulosic binder is about 1:4 to about 4:1,
Aerosol-generating material. The method according to any one of claims 1 to 6,
The flavor includes menthol,
Aerosol-generating material. The method according to any one of claims 1 to 6,
The flavor includes spearmint,
Aerosol-generating material. The method according to any one of claims 1 to 8,
The aerosol generators include glycerol, propylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, 1,3-butylene glycol, erythritol, meso-erythritol, ethyl vanillatate, ethyl laurate, and diethyl subrate. , triethyl citrate, triacetin, diacetin mixture, benzyl benzoate, benzyl phenyl acetate, tributyrin, lauryl acetate, lauric acid, myristic acid, and propylene carbonate,
Aerosol-generating material. The method according to any one of claims 1 to 9,
The aerosol generating agent includes glycerol,
Aerosol-generating material. The method according to any one of claims 1 to 10,
The emulsifier includes one or more compounds selected from agar, xanthan gum, gum arabic (acacia gum), guar gum, locust bean gum, pectin, carrageenan and lecithin,
Aerosol-generating material. The method according to any one of claims 1 to 11,
The emulsifier includes guar gum,
Aerosol-generating material. The method according to any one of claims 1 to 12,
The aerosol-generating material comprises filler in an amount of up to about 25% by weight.
Aerosol-generating material. The method according to any one of claims 1 to 12,
wherein the aerosol-generating material comprises less than about 1% by weight of filler,
Aerosol-generating material. The method according to any one of claims 1 to 14,
Optional fillers include maltodextrin or microcrystalline cellulose (MCC).
Aerosol-generating material. The method according to any one of claims 1 to 14,
The optional filler has a density of less than about 0.5 g/cm3,
Aerosol-generating material. The method according to any one of claims 1 to 16,
wherein the aerosol generating agent is present in an amount of about 10 to about 35 weight percent of the total weight of the aerosol generating material.
Aerosol-generating material. The method according to any one of claims 1 to 17,
wherein the flavor is present in an amount of about 10 to about 50% by weight of the total weight of the aerosol generating material.
Aerosol-generating material. The method according to any one of claims 1 to 18,
wherein the flavor is present in an amount of about 30 to about 50% by weight of the total weight of the aerosol generating material.
Aerosol-generating material. The method according to any one of claims 1 to 19,
wherein the flavor is present in an amount of from about 5 to about 25% by weight of the total weight of the aerosol generating material.
Aerosol-generating material. The method according to any one of claims 1 to 19,
The aerosol-generating material further comprises a crosslinked agent,
Aerosol-generating material. According to claim 21,
The crosslinking agent contains calcium ions,
Aerosol-generating material. The method according to any one of claims 1 to 20,
wherein the aerosol-generating material does not contain a crosslinking agent,
Aerosol-generating material. The method according to any one of claims 1 to 23,
wherein the aerosol generating material is substantially free of tobacco,
Aerosol-generating material. The method according to any one of claims 1 to 24,
The aerosol generating material is in the form of a sheet,
Aerosol-generating material. The method according to any one of claims 1 to 24,
The aerosol-generating material is in the form of a film on a support,
Aerosol-generating material. Comprising an aerosol-generating material according to any one of claims 1 to 26,
Aerosol-generating composition. According to clause 27,
further comprising a second aerosol generating material,
The second aerosol generating material is,
an aerosol generating agent in an amount of from about 1 to about 80% by weight of the aerosol generating material;
One or more binders, the total amount of binders being from about 5 to about 50 weight percent of the aerosol-generating material;
Flavor in an amount from about 0.1 to about 60% by weight of the aerosol generating material;
Emulsifier in an amount of from about 1 to about 25% by weight of the aerosol-generating material; and
optionally comprising a filler,
The composition of the second aerosol-generating material is different from the composition of the first aerosol-generating material,
Aerosol-generating composition. According to clause 28,
The one or more binders in the second aerosol generating material comprise a non-cellulosic binder, preferably an alginate.
Aerosol-generating composition. An article for use with a non-flammable aerosol delivery device, comprising:
The article comprises an aerosol-generating composition according to any one of claims 27 to 29,
Articles for use with non-flammable aerosol delivery devices. A non-flammable aerosol delivery system comprising an article according to claim 30 and a non-flammable aerosol delivery device, comprising:
wherein the non-flammable aerosol-providing device is configured to generate an aerosol from the article when the article is used with the non-flammable aerosol-providing device.
Non-flammable aerosol delivery system. According to claim 31,
The non-flammable aerosol delivery device comprises a heater configured to heat but not burn the article.
Non-flammable aerosol delivery system. Use of the aerosol-generating composition according to any one of claims 27 to 29 in a consumable for use in a non-flammable aerosol-providing device,
wherein the non-flammable aerosol-providing device comprises an aerosol-generating device to generate an aerosol from the consumable when the consumable is used with the non-flammable aerosol-providing device.
Use of aerosol-generating compositions. As a slurry,
an aerosol generating agent in an amount of about 1 to about 80 weight percent;
one or more binders, the total amount of binders being from about 5 to about 50 weight percent, and the one or more binders comprising carboxymethyl cellulose;
Flavor in an amount from about 0.1 to about 60% by weight;
Emulsifier in an amount of about 1 to about 25 weight percent; and
Optionally, filler - these weights are calculated on a dry weight basis - and
containing solvents,
Slurry. 27. A method for producing an aerosol-generating material according to any one of claims 1 to 26, comprising:
The above method is,
(i)
an aerosol generating agent in an amount of about 1 to about 80 weight percent;
one or more binders, the total amount of binders being from about 5 to about 50 weight percent, and the one or more binders comprising carboxymethyl cellulose;
Flavor in an amount from about 0.1 to about 60% by weight;
Emulsifier in an amount of about 1 to about 25 weight percent;
Optionally, filler—these weights are calculated on a dry weight basis—and
menstruum
combining;
(ii) forming a slurry layer; and
(iii) drying the slurry to form an aerosol-generating material,
Method for manufacturing aerosol-generating materials. In the slurry according to claim 34 or the process according to claim 35,
The solvent is water,
Slurry or method.