JP2023538838A - Combustion suppression materials and their use - Google Patents

Abstract

FIELD OF THE INVENTION The present invention relates to a combustion suppressing material comprising a flame suppressing salt and an amorphous solid material. The present invention also relates to consumables containing combustion suppressing materials and nonflammable aerosol delivery systems comprising such consumables. The present invention further relates to methods of making flame-suppressing materials and the use of flame-suppressing salts and amorphous materials to suppress combustion.
[Selection diagram] Figure 1

Description

field

FIELD OF THE INVENTION The present invention relates to a combustion suppressing material comprising a flame suppressing salt and an amorphous solid material. The present invention also relates to consumables containing combustion suppressing materials and nonflammable aerosol delivery systems comprising such consumables. The present invention further relates to methods of making flame-suppressing materials and the use of flame-suppressing salts and amorphous materials to suppress combustion.

background

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

overview

According to a first aspect of the present invention, there is provided a combustion inhibiting material comprising a combustion inhibiting salt and an amorphous solid material.

In some embodiments, the flame inhibiting salt is an alkali metal salt optionally selected from the group consisting of sodium chloride, potassium chloride, sodium bromide, potassium bromide, and combinations thereof.

In some embodiments, the combustion inhibiting salt is incorporated into the amorphous solid material.

In some embodiments, the flame-suppressing salt is applied to an amorphous solid material.

In some embodiments, the flame-suppressing material comprises from about 3 wt% to about 60 wt% flame-suppressing salt (on a dry weight basis).

According to a second aspect of the invention there is provided a consumable article comprising a combustion suppressing material according to the first aspect.

In some embodiments, the consumable further includes an aerosol-generating material.

In some embodiments, the combustion suppressing material at least partially surrounds the aerosol generating material.

In some embodiments, the consumable further includes a package.

In some embodiments, the combustion suppressing material is distributed within the aerosol generating material.

In some embodiments, the aerosol-generating material includes tobacco material. In some embodiments, the tobacco material is shredded rag tobacco.

In some embodiments, the consumable includes a binding agent.

In some embodiments, the consumable is rod-shaped.

According to a third aspect of the invention there is provided a non-flammable aerosol delivery system comprising a consumable according to the second aspect.

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

In some embodiments, a solution or suspension containing a combustion inhibiting salt is applied to an amorphous solid material.

In some embodiments, the flame-suppressing salt is added during manufacture of the amorphous solid material.

According to a fifth aspect of the invention there is provided the use of a material according to the first aspect for suppressing combustion of a consumable for use in a non-flammable aerosol delivery system.

Embodiments of the invention will now be described, by way of example only, with reference to the accompanying figures.

1 is a side cross-sectional view of a first embodiment of a consumable for use with a non-flammable aerosol delivery device that includes a combustion suppressing material; FIG. FIG. 3 is a side cross-sectional view of a second embodiment of a consumable for use with a non-flammable aerosol delivery device that includes a combustion suppressing material. 3 is a perspective view of a non-flammable aerosol delivery device for producing an aerosol from the consumable aerosol-generating material of FIG. 1 or 2; FIG.

detailed description

FIELD OF THE INVENTION The present invention relates to a combustion suppressing material comprising at least one flame suppressing salt and an amorphous solid material.

Combustion Suppressing Salts Salts as used herein are compounds consisting of ionic assemblies of cations and anions. A salt as used herein is a salt whose anion and/or its cation can be effective in inhibiting combustion. In some embodiments, the salt is an inorganic salt.

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

In some embodiments, the salt can be an alkali metal salt, ie, has an alkali metal cation. In some embodiments, the salt has an alkaline earth metal cation. In some embodiments, the salt has a zinc cation or an iron cation, such as a trivalent or divalent iron cation. In some embodiments, the salt has an ammonium or phosphonium cation.

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

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

In other embodiments, the salt has an anion selected from: borate, carbonate, phosphate, sulfate, or sulfamate.

Factors that can influence the choice of salt include, for example, melting point, which is preferably at least 450°C. In some embodiments, the salt is soluble in water. In some embodiments, the salt is selected to provide the desired pH of the added material. In some embodiments, the salt does not significantly change the pH of the material.

In some embodiments, sodium chloride (NaCl) is the salt used. Amorphous solid materials with high chloride content have proven difficult to burn. Furthermore, sodium chloride is neutral, highly soluble, and does not affect the pH of amorphous solid materials.

The flame inhibiting salt may be a single salt or a combination of any number of salts disclosed herein or known in the art, and is herein referred to as "flammable inhibiting salt". ” is called. The flame inhibiting salt(s) may be advantageously selected to impart desired characteristics to the flame inhibiting material.

In some embodiments, the selected combustion suppressing salt is: inert, solubility in the precursor liquid, amorphous solid or solubility or distribution for the amorphous solid in the precursor material, density or known in the art. It may have one or more advantageous properties, such as other known properties.

In some embodiments, the flame inhibiting salt comprises, consists essentially of, or consists of sodium chloride, potassium chloride, sodium bromide, and/or potassium bromide.

Depending on the flame suppression properties or other physical properties desired, the salt components may be in free base form, salt form, or as a complex, or as a solvate. The combustion inhibiting salt may be of any density and any crystal structure.

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

The liquid carrier or precursor solvent may be advantageously selected such that it is easily removed during the production of the flame-suppressing material and the flame-suppressing salt remains in or on the amorphous solid material.

In some embodiments, the liquid carrier is a mixture of liquids including an aqueous liquid (water) and a non-aqueous liquid (eg, glycerol). Upon water removal after salt application, the glycerol is retained in the amorphous solid material, providing flexibility and aiding aerosol formation upon heating.

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

The amorphous solid material can be about 0.1 wt%, 0.5 wt%, 1 wt%, 5 wt%, 10 wt%, 15 wt%, 20 wt% or 25 wt% to about 60 wt%, 50 wt%, 45 wt%, 40 wt% or 35 wt% % gelling agent (all calculated on a dry weight basis). For example, the amorphous solid may include 1-50 wt%, 5-45 wt%, 10-40 wt% or 20-35 wt% gelling agent. In some embodiments, the gelling agent includes a hydrocolloid.

In some embodiments, the gelling agent is selected from the group including alginates, pectins, starches (and derivatives), cellulose (and derivatives), gums, silica or silicone compounds, clays, polyvinyl alcohols, and combinations thereof. one or more of the following. For example, in some embodiments, gelling agents include alginate, pectin, hydroxyethyl cellulose, hydroxypropyl cellulose, carboxymethyl cellulose, pullulan, xanthan gum guar gum, carrageenan, agarose, gum acacia, fumed silica, PDMS, silicic acid Contains one or more of sodium, kaolin, polyvinyl alcohol, and the like. Optionally, gelling agents include alginate and/or pectin and may be combined with a hardening agent (such as a calcium source) during the formation of the amorphous solid. In some cases, the amorphous solid may include calcium crosslinked alginate and/or calcium crosslinked pectin.

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

In some embodiments, the combustion inhibiting material may include an amorphous solid that may include a gelling agent including carrageenan.

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

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

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

Aerosol-forming materials can act as plasticizers. For example, the amorphous solid material may include 0.5-40 wt%, 3-35 wt%, or 10-25 wt% aerosol-forming material. Optionally, the aerosol-forming material includes one or more compounds selected from erythritol, propylene glycol, glycerol, triacetin, sorbitol, and xylitol. In some cases, the aerosol-forming material comprises, consists essentially of, or consists of glycerol. The inventors have established that if the content of plasticizer is too high, the amorphous solid material may absorb water, resulting in a material that does not produce a suitable consumption experience when used. The inventors have demonstrated that if the plasticizer content is too low, the amorphous solid material may be brittle and easily destroyed. The plasticizer content defined herein provides flexibility of the amorphous solid that allows the amorphous solid sheet to be wound onto a bobbin, which is useful in the manufacture of aerosol-generating articles. be.

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

Combustion Suppression Material In some embodiments, the combustion suppression material includes a combination of an amorphous solid material and a combustion suppression salt, as discussed herein.

In some embodiments, the proportion of combustion inhibiting salts in the combustion inhibiting material may be advantageously selected for its combustion inhibiting properties. Suitably, the combustion inhibiting material is from about 3 wt%, 15 wt%, 20 wt%, 25 wt%, 30 wt%, 35 wt%, 40 wt%, 45 wt%, or from about 50 wt% to about 90 wt%, 85 wt%, 80 wt%, It may include up to 75 wt%, 70 wt%, 65 wt%, or up to about 60 wt% flame inhibiting salt (all calculated on a dry weight basis).

In some embodiments, the flame inhibiting salt is incorporated into the amorphous solid material. This means that the flame inhibiting salt is contained within the amorphous solid composition. For example, during the preparation of an amorphous solid material, a liquid precursor material for the amorphous solid material is mixed with a combustion inhibiting salt. This causes the combustion inhibiting salt to be distributed throughout the resulting amorphous solid material. In some embodiments, the distribution of the flame-suppressing salt is uniform throughout the amorphous solid, which can be advantageous because the flame-suppressing effect is effective throughout the material. Combustion inhibiting salts may be added in the form of solutions or suspensions. Alternatively, the combustion inhibiting salt may be added to the liquid precursor material in solid form, such as in particulate form, such as a powder.

In other embodiments, flame inhibiting salts are added to or applied to the amorphous solid material. For example, once an amorphous solid material is prepared, a solution or suspension containing a combustion inhibiting salt is applied to the surface of the amorphous solid material to deposit the combustion inhibiting salt onto the surface of the amorphous solid material.

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

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

In some embodiments, the combustion inhibiting material:
about 1 to about 50 wt% gelling agent;
from about 0.1 to about 50 wt% of an aerosol former; and from about 3 to about 90 wt% of a flame inhibiting salt;
These weights are calculated on a dry weight basis.

In particularly exemplary embodiments, the combustion inhibiting material:
about 20 to about 30 wt% gelling agent;
about 20 to about 30 wt% of an aerosol former; and about 50 to about 60 wt% of a flame inhibiting salt;
These weights are calculated on a dry weight basis.

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

When this slurry is dried, the composition of the flame-suppressing material is as follows: alginate (22.3%); sodium chloride (52.1%); and 50 g glycerol (25.6%).

In some cases, the flame-suppressing material consists essentially of, or can consist of, a flame-suppressing salt, a gelling agent, an aerosol former, and water.

The inventors have demonstrated that improved articles can be manufactured comprising flame inhibiting materials that include flame inhibiting salts and amorphous solids to improve material properties (e.g., density) and specifications (e.g., thickness, length, and cutting width) have advantageously been found to fall within the ranges set out herein.

In some cases, the flame suppression material may have a thickness of about 0.015 mm to about 1.5 mm, preferably about 0.05 mm to about 1.5 mm or 0.05 mm to about 1 mm. Suitably, the thickness may range from about 0.1 mm or 0.15 mm to about 1 mm, 0.5 mm or 0.3 mm. The combustion suppression material may include two or more layers, and the thicknesses described herein refer to the total thickness of these layers.

In some embodiments where the flame-suppressing material includes a flame-suppressing salt as a coating on an amorphous solid, the coating layer of the flame-suppressing salt can have a thickness of about 0.01 mm to about 0.1 mm. The flame-retardant salt coating may include two or more layers, and the thicknesses described herein refer to the total thickness of these layers.

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

The inventors have demonstrated that if the combustion suppression material is too thick, heating efficiency may be compromised. This can have a negative impact on power consumption during use, for example for releasing perfume from an amorphous solid. Conversely, if the combustion suppression material is too thin, it may be difficult to manufacture and handle; very thin materials can be more difficult to cast, are more likely to break during use, and may impair aerosol formation. be. In some cases, the individual strips or pieces of flame suppression material have a minimum thickness of about 0.015 mm over their area. In some cases, the individual strips or pieces of amorphous solid have a minimum thickness over their area of about 0.05 mm or about 0.1 mm. In some cases, individual strips or pieces of amorphous solid have a maximum thickness over their area of about 1.0 mm. In some cases, the individual strips or pieces of flame suppression material have a maximum thickness over their area of about 0.5 mm or about 0.3 mm.

For the avoidance of doubt, references herein to areal density refer to the average areal density calculated for a given strip, piece or sheet of combustion suppressing material; Refers to the areal density calculated by measuring the surface area and weight of a piece, piece or sheet.

In some cases, the thickness of the combustion suppressing material may vary by no more than 25%, 20%, 15%, 10%, 5% or 1% over the area.

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

The density of the combustion-suppressing material affects the rate at which heat is conducted through the material, with lower densities, e.g., less than 700 mg/cc, conducting heat through the material more slowly and therefore reducing the Allows for sustained release. The density of the combustion inhibiting salt also affects the rate of heat transfer, as does the flammability of the consumables discussed above.

In some instances, such as where the flame-retarding material does not include a filler, the flame-retarding material has a tensile strength of from 200 N/m to 400 N/m, or from 200 N/m to 300 N/m, or about 250 N/m. obtain. Such tensile strength may be particularly suitable for embodiments in which the combustion suppression material is formed as a sheet and then shredded and incorporated into the consumable.

In some embodiments, such as where the flame suppression material is used in sheet form, fillers are included to increase tensile strength. In some embodiments, the flame inhibiting material can have a tensile strength of at least about 1500 or at least about 2000 N/m and/or up to about 5000 N/m. In some embodiments, the tensile strength may be about 3000 to about 4000 N/m. Such tensile strength may be particularly suitable for embodiments in which the flame suppression material is incorporated into the consumable product in the form of a sheet, for example as a wrapper.

In some embodiments, the flame suppression material comprises an amorphous solid that is a hydrogel and contains less than about 20 wt% water calculated on a wet weight basis. In some cases, the hydrogel may contain less than about 15 wt%, 12 wt%, or 10 wt% water, calculated on a wet weight basis. In some cases, the hydrogel can include at least about 1 wt%, 2 wt%, or at least about 5 wt% water.

Additional Components of the Combustion Suppressing Material In some embodiments, the combustion suppressing material may include additional components described herein. Additional components may be included in any portion of the combustion suppression material. In some embodiments, additional components included in the amorphous solid material are therefore distributed within the combustion suppressing material.

In some embodiments, the flame suppression material may include one or more of a pH modifier, a colorant, a preservative, a binder, a filler, a stabilizer, and/or an antioxidant. or multiple other functional materials.

In some embodiments, the combustion inhibiting material includes a fragrance. Thus, burn-inhibiting materials have the advantage of preventing flavor burn-out and delivering the desired flavor.

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

For example, the combustion inhibiting material may include 1-80 wt%, 10-80 wt%, 20-70 wt%, 30-60 wt%, 35-55 wt%, or 30-45 wt% fragrance. In some cases, the fragrance comprises, consists essentially of, or consists of menthol.

In some embodiments, a flavoring agent is included in the aerosol-generating material. Perfumes applied to amorphous solid materials may be more stably retained, resulting in a more consistent perfume profile among the consumables disclosed herein.

As used herein, the terms "fragrance" and "flavoring agent" create a desired flavor, aroma or other somatosensory stimulation in products intended for adult consumers, where local regulations permit. Refers to materials that can be used for They may be naturally occurring flavoring materials, botanicals, extracts of botanicals, synthetically obtained materials or combinations thereof (e.g. tobacco, cannabis, licorice, hydrangea, eugenol). , magnolia leaves, chamomile, fenugreek, cloves, maple, matcha, menthol, Japanese peppermint, aniseed, cinnamon, turmeric, Indian spices, Asian spices, medicinal herbs, wintergreen, cherries, berries, red berries, cranberries. , peach, apple, orange, mango, clementine, lemon, lime, tropical fruit, papaya, rhubarb, grape, durian, dragon fruit, cucumber, blueberry, mulberry, citrus, Drambuie, bourbon, scotch, whiskey, gin, tequila, rum , spearmint, peppermint, lavender, aloe vera, cardamom, celery, cascarilla, nutmeg, sandalwood, bergamot, geranium, khat, nasuwar, betel nut, shisha, pine, honey extract, rose oil, vanilla, lemon oil, orange oil, orange blossom. , cherry blossom, cassia, caraway, cognac, jasmine, ylang-ylang, sage, fennel, wasabi, bell pepper, ginger, coriander, coffee, hemp, mint oil of any species of the genus Mentha, eucalyptus, daikon Fennel, cocoa, lemongrass, rooibos, flax, ginkgo biloba, hazel, hibiscus, bay leaf, mate, orange peel, rose, tea such as green tea or black tea, thyme, juniper, elderflower, basil, bay leaf, cumin , oregano, paprika, rosemary, saffron, lemon peel, mentha, perilla, curcuma, coriander leaf, myrtle, black currant, valerian, mustard, daylily flower, damien, marjoram, olive, lemon balm, lemon basil, green onion, red herring fennel, verbena, tarragon, limonene, thymol, camphene), flavor enhancers, bitter receptor site blockers, sensory receptor site activators or stimulants, sugars and/or sugar substitutes (e.g. sucralose, acesulfame potassium, aspartame, saccharin, cyclamate, lactose, sucrose, glucose, fructose, sorbitol, or mannitol), as well as other additives such as charcoal, chlorophyll, minerals, botanicals, or breath fresheners. They may be imitations, synthetic or natural raw materials or blends thereof. They 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 comprises cucumber, blueberry, citrus, and/or red berry flavor ingredients. In some embodiments, the fragrance includes eugenol. In some embodiments, the flavor comprises flavor components extracted from tobacco. In some embodiments, the flavor comprises flavor components extracted from cannabis.

In some embodiments, the fragrance is a somatosensory stimulus that is typically chemically induced and sensed by stimulation of the fifth cranial nerve (trigeminal nerve), in addition to or instead of the aroma or flavor nerve. These may include agents that produce heating, cooling, tingling, numbing effects, which are intended to achieve the effects perceived by the five senses. A suitable thermal effect agent may be, but is not limited to, vanillyl ethyl ether, and a suitable coolant may be, but is not limited to, eucalyptol, WS-3.

Amorphous solids can be made from gels, which can additionally include solvents included from 0.1 to 50 wt%. However, we have demonstrated that containing solvents in which the perfume is soluble can reduce gel stability and the perfume may crystallize from the gel. Therefore, in some cases, the gel does not contain a solvent in which the perfume is soluble. In some embodiments, the solvent may be removed by evaporation prior to containing the perfume.

In some cases, the flame-suppressing material may additionally include an emulsifier to emulsify the molten perfume during manufacture. For example, the combustion inhibiting material may include from about 5 wt% to about 15 wt% emulsifier (calculated on a dry weight basis), preferably about 10 wt% emulsifier. Emulsifiers may include gum acacia (gum arabic) or guar gum.

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

In some embodiments, if local regulations permit, the flammability inhibiting material may include an active substance. In some embodiments, the combustion inhibiting material does not include an active substance.

In some embodiments, the active agent is contained in an amorphous solid material.

An active substance as used herein can be a physiologically active material, a material intended to achieve or enhance a physiological response. The active substance may be selected, for example, from dietary supplements, nootropics, psychoactive drugs. The active substances may be of natural origin or synthetically obtained. The active substance may include, for example, nicotine, caffeine, taurine, thein, vitamins such as B6 or B12 or C, melatonin, cannabinoids, or components, derivatives, or combinations thereof. The active substance may include one or more constituents, derivatives or extracts of tobacco, cannabis or other botanical substances.

In some embodiments, the active agent includes nicotine. In some embodiments, the active agent includes caffeine, melatonin or vitamin B12.

As indicated herein, the active agent may include one or more of the constituents, derivatives or extracts of cannabis, such as one or more of cannabinoids or terpenes.

As indicated herein, the active substance may include or be derived from one or more of botanical substances or constituents, derivatives or extracts thereof. As used herein, the term "plant material" includes, but is not limited to, extracts, leaves, bark, fibers, stems, roots, seeds, flowers, fruits, pollen, pods, shells, etc. Includes any material of plant origin that is not Alternatively, the materials may include active compounds that occur naturally in botanical materials and are obtained synthetically. The material may be in the form of a liquid, gas, solid, powder, powder, ground particles, granules, pellets, pieces, strips, sheets, etc. Examples of botanical substances are tobacco, eucalyptus, rhubarb, hemp, cocoa, cannabis, fennel, lemongrass, peppermint, spearmint, rooibos, chamomile, flax, ginger, ginkgo, hazel, hibiscus, bayberry, liquorice. , matcha, mate, orange peel, papaya, rose, sage, tea such as green or black tea, thyme, cloves, cinnamon, coffee, aniseed, basil, bay leaf, cardamom, coriander, cumin, nutmeg, oregano, paprika, Rosemary, saffron, lavender, lemon peel, mentha, juniper, elderflower, vanilla, wintergreen, perilla, curcuma, turmeric, sandalwood, coriander leaf, bergamot, orange blossom, myrtle, blackcurrant, valerian, mustard, dayflower. , Damien, Majorana, olive, lemon balm, lemon basil, green onion, fennel, verbena, tarragon, geranium, mulberry, ginseng, theanine, theacrine, maca, ashwagandha, damiana, guarana, chlorophyll, baobab or any combination thereof. It is. Mentha may be selected from the following mentha varieties: Mentha arventis, Mentha c. v. , Mentha niliaca, Mentha piperita, Mentha piperita citrata c. v. , Mentha piperita c. v. , Mentha spicata crispa, Mentha cardiofolia, Mentha longifolia, Mentha suaveolens va Mentha pulegium, Mentha spicata (Mentha spicata) c. v. and Mentha suaveolens.

In some embodiments, the active agent comprises or is derived from one or more of a botanical material or a component, derivative, or extract thereof, and the botanical material is tobacco.

In some embodiments, the active agent comprises or is derived from a botanical material or one or more of its constituents, derivatives, or extracts, wherein the botanical material is eucalyptus, rhododendron, Selected from cocoa and hemp.

In some embodiments, the active agent comprises or is derived from one or more of a botanical substance or a component, derivative or extract thereof, and the botanical substance is selected from rooibos and fennel. Ru.

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

In some embodiments, where local regulations permit, the combustion suppressing material additionally includes plant material or tobacco material and/or nicotine.

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

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

In some cases, nicotine may not be present in the combustion suppressing material other than that derived from tobacco material or tobacco extract.

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

In some embodiments, the combustion suppressing material includes a filler. In some embodiments, the filler is included in the amorphous solid material.

In some embodiments, the combustion suppressing material comprises less than 60 wt% filler, such as from 1 wt% to 60 wt%, or from 5 wt% to 50 wt%, or from 5 wt% to 30 wt%, or from 10 wt% to 20 wt%.

In other embodiments, the combustion suppressing material comprises less than 20 wt%, preferably less than 10 wt% or less than 5 wt% filler. In some cases, the amorphous solid material contains less than 1 wt% filler, and in some cases it contains no filler.

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

In certain embodiments that include fillers, the fillers are fibrous. For example, the filler may be a fibrous organic filler material such as wood pulp, hemp fiber, cellulose or cellulose derivatives. While not wishing to be bound by theory, it is believed that including fibrous fillers in the flame suppression material can increase the tensile strength of the material.

In some embodiments, the combustion suppressing material does not include tobacco fibers.

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

Consumables A consumable is an article containing an aerosol-generating material, part or all of which is intended to be consumed during use by a user. The consumable includes one or more other storage areas for aerosol-generating materials, transfer elements for aerosol-generating materials, aerosol-generating areas, containers, packages, mouthpieces, filters, and/or aerosol modifiers. Components may be provided. The consumable may also include an aerosol generator, such as a heater, that, when used, generates heat to cause the aerosol-generating material to generate an aerosol. The heater may include, for example, a combustible material, a conductively heatable material, or a susceptor. The consumable may be of any shape or size suitable for a smoking device. In a preferred embodiment of the invention, the consumable is rod-shaped.

In the present invention, the consumable includes the combustion suppressing material disclosed herein. In some fields, it is necessary for consumables to resist flammability, and this can be enhanced by the inclusion of flammability suppressing materials.

In some embodiments, the inclusion of a combustion suppressing material in the consumable means that the consumable does not need to include foil. The consumable may include metal foil, such as aluminum foil, as part of the packaging surrounding the aerosol-generating material to suppress or prevent combustion.

In some embodiments, the combustion suppressing material surrounds at least a portion of the aerosol generating material. For example, the wrapper surrounding the aerosol-generating material may include or consist of a combustion inhibiting material. The combustion suppressing material may be in the form of a sheet. One or more layers of combustion suppressing material may surround the aerosol generating material.

In some embodiments, the combustion suppressing material surrounds the entire aerosol generating material. When the aerosol-generating material is applied in the form of a rod, the combustion suppressing material not only surrounds the length of the rod of aerosol-generating material, but also surrounds the end of the rod. This may be in the form of a sheet folded over or otherwise extending beyond the end of the rod, or a plug of combustion suppression material inserted into the end of the rod. This prevents the aerosol-generating material from burning if an attempt is made to light a consumable such as a cigarette.

As described herein, a rod of aerosol-generating material can have a first end and a second end. In use, the rod typically has a downstream end that connects to or includes a mouthpiece and/or a filter, and an upstream end, also referred to as a distal end.

In other embodiments, the combustion suppression material is delivered locally, such as at the distal end of the rod of aerosol-generating material, with little or no combustion suppression material being delivered to other portions of the consumable. In some embodiments, the combustion inhibiting material is provided in a greater concentration near the distal end. In some embodiments, the combustion suppressing material is provided exclusively near the distal end. The area to which the combustion suppressing material is supplied is up to about 5%, up to about 10%, up to about 20%, up to about 30%, up to about 40%, up to about 50% of the rod from the distal end. %, or up to about 60%. In some embodiments, the combustion suppression material is disposed at the distal end of the rod in the form of shredded sheets. In some embodiments where the combustion suppression material is chopped, the combustion suppression material may be interspersed with, mixed with, or otherwise combined with the aerosol generating material. Alternatively, the shredded combustion suppression material may surround the aerosol generating material. In other embodiments, the shredded combustion suppression material is not mixed with the aerosol generating material and may be in the form of a plug. The method of chopping combustion suppressing material has the advantage that it is particularly suitable for being incorporated into rods.

In some embodiments where the combustion suppression material is disposed at the distal end of the rod, the combustion suppression material may be in the form of collected sheets. In some embodiments, the collected sheets are in the form of plugs. The collected sheet method has the advantage that salt migration onto the rods is reduced. A plug of combustion inhibiting material may also be formed as a solid mass comprising a combustion inhibiting salt and an amorphous solid material.

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

In some embodiments, the consumable may include at least one vent area configured to allow external air to enter the article. The vent area may include one or more vents or perforations cut into the package to allow ambient air to be drawn into the article. This can affect the pressure drop and enhance the user's experience of the perfume properties of the aerosol-generating material. The location of these holes and/or perforations can be between about 0.5 mm and about 10 mm, between about 1 mm and about 4 mm, or between about 4 mm and about 8 mm from the distal end of the rod. The holes and/or perforations may be of any suitable size and/or number to accommodate air flow. The size, number and location of the holes and/or perforations on the package may be selected to provide adequate airflow. For example, a larger number and larger holes and/or perforations can introduce more air into the rod, increasing air flow and thus providing adequate pressure drop.

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

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

In an exemplary embodiment, the consumable includes a blend of an aerosol generating material and a combustion suppressing material. For example, the blend may include an aerosol-generating material in an amount of 50% to 98%, such as 80% to 95%, and the aerosol-generating material may include chopped rag tobacco in an amount of, for example, 2% to 50%, such as 5% to 20%. and shredded amorphous solid material.

In some embodiments, when the combustion suppression material in the form of sheets is shredded, an equal mixing of the aerosol-generating material and the combustion suppression material may be achieved. The cutting width of the combustion suppressing material to be shredded is preferably between 0.75 mm and 2 mm, for example between 1 mm and 1.5 mm. The strands of combustion suppression material formed by shredding are cut widthwise, e.g. in a transverse shredding process, to define, in addition to the cut width, the cut length of the combustion suppression material to be shredded. Good too. The cutting length of the combustion suppression material that is shredded is preferably at least 5 mm, such as at least 10 mm, or at least 20 mm. The cut length of the combustion suppression material that is shredded may be less than 60 mm, less than 50 mm, or less than 40 mm. In some embodiments, the cut length of the shredded combustion suppressant material is preferably non-uniform to achieve equal mixing of the shredded combustion suppressant material and shredded rag tobacco. Although referred to as the cutting length, the length of the strip or strip of combustion suppression material may alternatively or additionally be determined by the dimensions of the material determined during its manufacture, e.g. by the sheet width of the material manufactured. can be shown.

In some embodiments, the aerosol-generating material included in the consumable includes one or more active agents and/or fragrances. In some embodiments, the material includes tobacco or other plant-derived material. When the aerosol-generating material includes tobacco, heating the material releases volatile tobacco components, including nicotine and flavor or aroma compounds.

In some embodiments, the aerosol-generating material comprises a plant-based material such as tobacco material. As used herein, the term "tobacco material" refers to any material that includes tobacco or a derivative or substitute thereof. The term "tobacco material" may include one or more of tobacco, tobacco derivatives, puffed tobacco, recycled tobacco or tobacco substitutes. The tobacco material may include one or more of ground tobacco, tobacco fiber, shredded tobacco, extruded tobacco, tobacco stems, tobacco flakes, recycled tobacco, and/or tobacco extract.

In some embodiments, the plant material is tobacco material and may be provided in the form of shredded rag tobacco. The shredded lug tobacco may have a cutting width of at least 15 cuts per inch (about 5.9 cuts per centimeter, corresponding to a cutting width of about 1.7 mm). Preferably, the shredded lug tobacco has at least 18 cuts per inch (about 7.1 cuts per centimeter, corresponding to a cutting width of about 1.4 mm), more preferably at least 20 cuts per inch (about 7.1 cuts per centimeter). 9 cuts, corresponding to a cutting width of approximately 1.27 mm). In one example, shredded lug tobacco has a cutting width of 22 cuts per inch (approximately 8.7 cuts per centimeter, corresponding to a cutting width of approximately 1.15 mm). Preferably, the shredded lug tobacco has a cut width of 40 cuts per inch (about 15.7 cuts per centimeter, corresponding to a cut width of about 0.64 mm) or less. A cutting width of between 0.5 mm and 2.0 mm, such as between 0.6 and 1.7 mm or between 0.6 mm and 1.5 mm, is suitable for surface area to volume ratios, especially when heated, as well as for aerosols. It has been found that this results in a desirable tobacco material with respect to the overall density and pressure drop of the rod of product material. Shredded rag tobacco may be formed from a mixture of tobacco material forms, such as one or more of recycled paper tobacco, leaf tobacco, extruded tobacco, and bandcast tobacco. Preferably, the tobacco material comprises recycled paper tobacco or a mixture of recycled paper tobacco and leaf tobacco.

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

The tobacco material may include recycled tobacco material, such as paper recycled tobacco material, having a density of less than about 700 mg/cc. For example, the aerosol generating material includes recycled tobacco material having a density of less than about 600 mg/cc. Alternatively or additionally, the aerosol generating material may include recycled tobacco material having a density of at least 350 mg/cc.

In some embodiments, the aerosol-generating material contains a filler component. The filler component is generally a non-tobacco component, ie, a component that does not contain materials derived from tobacco. The filler component may be wood fibers or non-tobacco fibers such as pulp or wheat fibers. Filler components may also be inorganic materials such as chalk, perlite, vermiculite, diatomaceous earth, colloidal silica, magnesium oxide, magnesium sulfate, magnesium carbonate, and the like. The filler component may also be a non-tobacco cast material or a non-tobacco extruded material. The filler component may be present in an amount of 0 to 20% by weight of the tobacco material or 1 to 10% by weight of the composition. In some embodiments, no filler component is present.

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

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

In some embodiments where the plant material is tobacco material, the tobacco material may contain between 10% and 90% tobacco leaves, and the aerosol-forming material comprises up to about 10% tobacco leaves by weight. Supplied in quantity. The aerosol-forming material is added at a higher weight percentage to another component tobacco material, such as recycled tobacco material, to achieve an overall level of between 10% and 20% aerosol-forming material by weight of the tobacco material. It has been advantageously found that it can be done.

The tobacco materials described herein contain nicotine. The nicotine content is between 0.5 and 1.75% by weight of the tobacco material, and may for example be between 0.8 and 1.5% by weight of the tobacco material. Additionally or alternatively, the tobacco material contains between 10% and 90% by weight of tobacco leaf with a nicotine content greater than 1.5% by weight of tobacco leaf. Tobacco leaf with a nicotine content higher than 1.5%, when used in combination with a lower nicotine base material such as recycled paper tobacco, has an adequate but better nicotine level than the use of recycled paper tobacco alone. It has been advantageously found that a tobacco material with sensory performance is provided. Tobacco leaves, such as chopped rag tobacco, may have a nicotine content, for example, between 1.5% and 5% by weight of the tobacco leaf.

The plant or tobacco materials described herein may contain an aerosol modifier such as any of the flavors described herein. In one embodiment, the tobacco material contains menthol to form a menthol-loaded article. The tobacco material may contain between 3 mg and 20 mg menthol, preferably between 5 mg and 18 mg, more preferably between 8 mg and 16 mg. In this example, the tobacco material contains 16 mg of menthol. The tobacco material may contain between 2% and 8% menthol, preferably between 3% and 7% menthol, more preferably between 4% and 5.5% menthol. . In one embodiment, the tobacco material includes 4.7% menthol by weight. Such high levels of menthol loading can be achieved using a high percentage of recycled tobacco material, eg greater than 50% of the tobacco material by weight. Alternatively or additionally, high levels of menthol loading can be achieved by incorporating menthol into an aerosol-generating material that includes an aerosol-forming agent and one or more binders and/or crosslinkers.

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

Recycled paper tobacco may be present in the tobacco component of the tobacco materials described herein in an amount from 10% to 100% by weight of the tobacco component. In embodiments, the recycled paper tobacco is present in an amount from 10% to 80%, or from 20% to 70% by weight of the tobacco component. In further embodiments, the tobacco component consists essentially of or consists of recycled paper tobacco. In a preferred embodiment, leaf tobacco is present in the tobacco component of the tobacco material in an amount of at least 10% by weight of the tobacco component. For example, leaf tobacco may be present in an amount of at least 10% by weight of the tobacco component, while the remaining tobacco component is in another form such as recycled paper tobacco, bandcast recycled tobacco, or bandcast recycled tobacco and tobacco granules. Including a combination of forms of tobacco. Suitably, leaf tobacco may be present in an amount up to 40% or 60% of the tobacco material, while the remaining tobacco components are paper recycled tobacco, bandcast recycled tobacco, or bandcast recycled tobacco and tobacco granules. including combinations of other forms of tobacco such as.

Recycled paper tobacco is produced by extracting the tobacco feedstock with a solvent to obtain an extract of soluble substances and a residue containing fibrous materials, and then extracting the extract (usually after concentration and optionally after further processing). , formed by a process in which the extract is deposited onto the fibrous material and recombined with the fibrous material from the residue (usually after purification of the fibrous material, optionally with the addition of some non-tobacco fibers) Refers to the tobacco material that is used. The recombination process is similar to the paper manufacturing process.

The recycled paper tobacco may be any type of recycled paper tobacco known in the art. In certain embodiments, recycled paper tobacco is made from a feedstock that includes one or more of tobacco strips, tobacco stems, and whole tobacco. In a further embodiment, recycled paper tobacco is made from a feedstock consisting of tobacco strips and/or whole tobacco and tobacco stems. However, in other embodiments, crumbs, granules, and winnowing may alternatively or additionally be utilized in the feedstock.

Recycled paper tobacco for use in the tobacco materials described herein can be prepared by methods known to those skilled in the art for preparing recycled paper tobacco.

The density of the tobacco material affects the rate at which heat is conducted through the material, with lower densities, such as densities below 700 mg/cc, conducting heat through the material more slowly and therefore making the aerosol more persistent. This allows for a wide range of emissions.

In the figures described herein, like reference numbers are used to illustrate equivalent features, articles or components.

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

The article 1 comprises a mouthpiece area 2 and an aerosol generation area 3.

The aerosol-generating zone 3 is in the form of a cylindrical rod and contains an aerosol-generating material 4 comprising chopped lug recycled tobacco. The aerosol generating material can be any of the materials discussed herein.

Although described above in rod form, the aerosol generation area 3 may be provided in other forms, such as a plug, pouch or packet of material within an article.

The mouthpiece section 2 comprises a body 5 of material, such as fibrous or filamentary tow in the exemplary embodiment.

The rod-shaped consumable 1 further comprises a packaging 6 enclosing the mouthpiece area 2 and the aerosol generation area 3. The package 6 comprises a sheet of combustion suppressing material as described herein. In the example shown, the combustion suppression material is a sheet of amorphous solid material that includes sodium chloride.

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

In this alternative embodiment, the article 1 again comprises a mouthpiece area 2 and an aerosol generation area 3. Aerosol generation zone 3 includes a blend 7 of aerosol generation material and combustion suppressing material.

The rod-shaped consumable 1 further comprises a packaging 8 enclosing the mouthpiece area 2 and the aerosol generation area 3. The package 8 comprises a sheet of paper.

Nonflammable Aerosol Delivery System In accordance with the present disclosure, a "nonflammable" aerosol delivery system is defined as a "nonflammable" aerosol delivery system in which the constituent aerosol-generating materials of the aerosol delivery system (or components thereof) facilitate delivery of at least one substance to a user. It is a non-combustible or non-combustible system.

In some embodiments, the delivery system is a non-flammable aerosol delivery system, such as a powered non-flammable aerosol delivery system.

Note that in some embodiments, the non-flammable aerosol delivery system is an electronic cigarette, also known as a vaping device or an electronic nicotine delivery system (END), although the presence of nicotine in the aerosol-generating material is not a requirement. I want to be

In some embodiments, the non-flammable aerosol delivery system is an aerosol-generating material heating system, also known as a non-flammable heated system. An example of such a system is a tobacco heating system.

In some embodiments, the non-flammable aerosol delivery system is a hybrid system that generates aerosol using a combination of aerosol-generating materials, one or more of which may be heated. Each aerosol-generating material may be in solid, liquid or gel form, for example, and may or may not contain nicotine. In some embodiments, the combined system includes a liquid or gel aerosol-generating material and a solid aerosol-generating material. Solid aerosol-generating materials can include, for example, tobacco or non-tobacco products.

Typically, a non-flammable aerosol delivery system may include a non-flammable aerosol delivery device and consumables for use with the non-flammable aerosol delivery device.

In some embodiments, the present disclosure relates to consumables that include aerosol-generating materials and are designed for use with non-flammable aerosol delivery devices. These consumables are sometimes referred to as articles throughout this disclosure.

In some embodiments, a non-flammable aerosol delivery system, such as a non-flammable aerosol delivery device, may include a power source and a controller. The power source may be, for example, a power source or an exothermic power source. In some embodiments, the exothermic power source is a carbon-based material that can be energized to distribute power in the form of heat to an aerosol-generating material or heat transfer material that is proximate to the exothermic power source. Provide materials.

In some embodiments, a nonflammable aerosol delivery system may include a consumable receiving area, an aerosol generator, an aerosol generation area, a container, a mouthpiece, a filter, and/or an aerosol modifier.

FIG. 3 illustrates an example of a non-flammable aerosol delivery device 100 for generating an aerosol from an aerosol-generating medium/material, such as the aerosol-generating material of the consumable 110 described herein. Generally speaking, the device 100 heats a replaceable article 110 containing an aerosol-generating medium, such as the article 1 illustrated in any one of FIGS. 1 or 2 or described elsewhere herein; It can be used to generate an aerosol or other inhalable medium that is inhaled by the user. Device 100 and replaceable item 110 together form a system.

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

Device 100 in this example includes a first end 106 that is movable relative to first end 106 to close opening 104 when article 110 is not placed. A lid 108 is provided. Although lid 108 is shown in an open position in FIG. 3, lid 108 may be moved to a closed position. For example, the user can slide lid 108 in the direction of arrow "B".

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

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

Method of Manufacture In some embodiments, a combustion inhibiting salt is incorporated or added to an amorphous solid material dissolved in a solvent or liquid carrier. In some embodiments, the combustion inhibiting salt is a suspension in a liquid carrier. The solvent or liquid carrier may be an aqueous or organic liquid and may be polar or non-polar depending on its preferred use. The liquid carrier or precursor solvent may advantageously be selected to be volatile so that the carrier liquid or solvent can be removed and the combustion inhibiting salt can remain in or on the amorphous solid material.

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

Consumables having a range of different wrappers surrounding rods of aerosol-generating material were prepared and their combustion characteristics were compared.

A variety of different packages were used to prepare consumables containing chopped rag aerosol-generating materials.

The first packaging used was paper, namely 24 GSM (grams per square meter) paper with a porosity of 75 CU (Coresta units).

Further packaging used was 32GSM and 64GSM Delfort paper.

The further packaging used was a laminated aluminum foil laminated with 23.5 GSM paper having a thickness of 37 μm, with a 6.3 μm thick lacquered aluminum foil.

Finally, a combustion suppression material according to the present disclosure was used to form a slurry having the following composition:
43g alginate (2.7%)
100g sodium chloride (6.3%)
50g glycerol (3.1%)
1400ml water (87.9%)

The consumable was made manually by inserting a flame-retardant sheet as an inner wrapper and then filling the rod with tobacco.

For testing, we attempted to smoke them by lighting the consumables and inhaling them using the method of combustible cigarettes. The more flammable the packaging material, the less the consumable burned.

Tests have shown that the amorphous solid material containing sodium chloride resists combustion well and performs similarly to known flame suppression foils and Delfort paper.

In addition, additional combustion suppression materials according to the present disclosure were used to form a slurry having the following composition:
21.5 g alginate 21.5 g wood pulp 120 g sodium chloride 30 g glycerol 1400 ml water

The slurry was dried in an oven to form a sheet. The resulting sheet did not burn when exposed to an uncovered flame from a lighter.

The various embodiments described herein are presented solely to assist in understanding and teaching the claimed features. These embodiments are provided as representative examples of embodiments only and are not intended to be exhaustive and/or exclusive. The advantages, embodiments, examples, features, features, structures, and/or other aspects described herein limit the scope of the invention as defined by the claims or the claims. They should not be considered limiting to equivalents, and it should be understood that other embodiments may be utilized and modifications may be made without departing from the scope of the claimed invention. Various embodiments of the invention suitably include and consist of suitable combinations of disclosed elements, components, features, parts, steps, means, etc. other than those specifically described herein. or may consist essentially of these. In addition, this disclosure may include other inventions not claimed herein but that may be claimed in the future.

Claims (20)

Materials containing combustion inhibiting salts and amorphous solid materials. 2. The material of claim 1, wherein the flame inhibiting salt is an alkali metal salt optionally selected from the group consisting of sodium chloride, potassium chloride, sodium bromide, potassium bromide, and combinations thereof. 3. A material according to claim 1 or 2, wherein the combustion inhibiting salt is incorporated into the amorphous solid material. 3. A material according to claim 1 or 2, wherein the combustion inhibiting salt is applied to the amorphous solid material. 5. The material of any preceding claim, wherein the material comprises from about 3 wt% to about 60 wt% flame inhibiting salt (on a dry weight basis). A consumable article comprising the material according to any one of claims 1 to 5. 7. The consumable of claim 6, further comprising an aerosol-generating material. 8. The consumable of claim 7, wherein the material at least partially surrounds the aerosol-generating material. The consumable product according to any one of claims 6 to 8, further comprising a packaging body. A consumable article according to any one of claims 7 to 9, wherein the material is distributed within the aerosol-generating material. 7. The consumable of claim 6, wherein the aerosol-generating material comprises tobacco material. 12. The consumable of claim 11, wherein the tobacco material is shredded rag tobacco. Consumable product according to any one of claims 6 to 12, comprising a binder. A consumable according to any one of claims 6 to 13, which is rod-shaped. 15. The consumable of claim 14, wherein the rod has a distal end and a proximal end, and the material is provided in a limited or greater concentration near the distal end of the rod. A non-flammable aerosol delivery system comprising a consumable according to any one of claims 6 to 15. A method for producing a material according to any one of claims 1 to 5, wherein the combustion inhibiting salt is incorporated or added to the amorphous solid material. 18. The method of claim 17, wherein the solution or suspension containing the combustion inhibiting salt is applied to the amorphous solid material. 19. A method according to claim 17 or 18, wherein the combustion inhibiting salt is added during manufacture of the amorphous solid material. Use of a material according to any one of claims 1 to 5 for suppressing combustion of consumables for use in non-flammable aerosol delivery systems.

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