Heated aerosol-generating article for reducing off-odor

Abstract

A heated aerosol-generating article for generating an inhalable aerosol, the heated aerosol-generating article comprising an aerosol-generating substrate wherein the aerosol-generating substrate comprises an aerosol-generating material comprising an aerosol-forming agent and a deodorant agent wherein the deodorant agent is a compound of formula (I), wherein each n is 0 to 5, Ra is CH3 or CH2CH3, Rb is CH3 or CH2CH3, and Ra and Rb can be the same or different.

Description

[0001] This disclosure relates to a heated aerosol-generating article and a material for use in such articles. In particular, the invention relates to an aerosol-generating material suitable for use in heated aerosol-generating articles, such as, for example, "heat-not-burn" type articles.

[0002] Aerosol-generating articles in which the aerosol-generating matrix (such as a tobacco-containing or tobacco-free matrix) is heated rather than burned are known in the art. Typically, in such heated smoking articles, an aerosol is generated by transferring heat from a heat source to a physically separated aerosol-generating matrix or material, which may be positioned in contact with, within, around, or downstream of the heat source. During use of the aerosol-generating article, volatile compounds are released from the aerosol-generating matrix via heat transfer from the heat source and entrained in the air inhaled through the aerosol-generating article. As the released compounds cool, they condense to form an aerosol.

[0003] Numerous prior art documents disclose aerosol generating apparatuses for consuming heated aerosol generating articles. Such apparatuses include, for example, electrically heated aerosol generating apparatuses, in which aerosols are generated by transferring heat from one or more electrically heated elements of the aerosol generating apparatus to the aerosol generating matrix of the heated aerosol generating article. One advantage of such electrically heated aerosol generating apparatuses is that they significantly reduce side-stream smoke.

[0004] Tobacco materials used as matrices in aerosol-generated products are typically selected from reconstituted tobacco sheets, cast leaves, and shredded fillers.

[0005] Reconstituted tobacco sheets and cast leaves may contain portions of the tobacco plant that are less suitable for producing shredded filler, such as tobacco stems or tobacco dust. Methods for forming tobacco sheet materials typically involve a step in which tobacco is mixed with a binder to form a slurry. The slurry is then used to produce tobacco webs. For example, tobacco webs can be formed by casting a viscous slurry onto a moving metal belt to produce so-called cast leaves. Alternatively, reconstituted tobacco can be formed using a slurry with low viscosity and high moisture content in a paper-like process.

[0006] The term "cast leaf" can be used in particular to refer to a form of homogenized tobacco material formed by a casting process, which is based on casting a slurry containing tobacco particles (alone or in a mixture with other plant particles) and a binder (such as, for example, guar gum) onto a support surface, such as a belt conveyor, drying the slurry, and removing the dried sheet from the support surface. Examples of casting or the casting leaf process are described, for example, in US-A-5,724,998 for the manufacture of cast leaf tobacco. In the casting leaf process, granular plant material is produced by pulverizing, grinding, or crushing portions of the plant. Particles from one or more plants are mixed with a liquid component (usually water) to form a slurry. Other components in the slurry may include additional fibers, binders, and aerosol-forming agents. The granular plant material may agglomerate in the presence of a binder. The slurry is cast onto a support surface and dried into a sheet of homogenized tobacco material.

[0007] Tobacco pellets can be in the form of tobacco dust, depending on the desired sheet thickness and casting gap, comprising particles with an average diameter of approximately 30 to 80 micrometers or approximately 100 to 250 micrometers. Additional fibers can include pellets of tobacco stalk material, stems, or other tobacco plant material, as well as other cellulose-based fibers, such as wood fibers with low lignin content. The type and size of the fiber pellets can be selected with an eye toward adjusting the tensile strength of the cast leaf. Furthermore, alternative fibers, such as plant fibers including bamboo, can be used in conjunction with or in place of the above fibers.

[0008] A suitable process for forming sheets of reconstituted tobacco is the so-called papermaking process. In the first step of such a process, tobacco-containing material (alone or in a mixture with another plant material) is mixed with water to form a dilute suspension, which consists primarily of separated cellulose fibers. This first step may involve soaking and applying heat. The suspension has a lower viscosity and a higher water content compared to the slurry produced in a casting process. The suspension can then be separated into an insoluble portion containing solid fiber components and a liquid or aqueous portion containing soluble tobacco substances. The water remaining in the insoluble fiber portion can be drained through a sieve, which acts as a screen, allowing a web of randomly interwoven fibers to be laid out. Water can be further removed from this web by pressing with rollers, sometimes with suction or vacuum assistance. When most of the water has been removed, a generally flat and uniform sheet of tobacco fibers is achieved. The soluble tobacco substances removed from the sheet can be concentrated, and the concentrated tobacco substances can be added back to the sheet, thereby producing a sheet of homogenized tobacco material. As described in US3,860,012, this process has been used with tobacco to manufacture reconstituted tobacco products, also known as tobacco paper.

[0009] Other known processes applicable to the production of sheets of homogenized tobacco material are, for example, the slug reprocessing process described in US-A-3,894,544; and the extrusion process described in GB-A-983,928. Generally, the density of homogenized tobacco material produced by extrusion and slug reprocessing is greater than that produced by casting.

[0010] Conventionally, shredded filler tobacco material is primarily formed from the leaf portion of tobacco leaves, which is separated from the stem portion during threshing. As an example, to produce shredded filler tobacco material, tobacco leaves are sprayed with water, steam, and glycerin inside a rotating drum. The water and steam soften and open the leaves, while the glycerin protects the tobacco from overheating and can generate an aerosol as the tobacco material is consumed. The leaves are then processed in a cutter to produce strips up to 1 mm wide. The strips are then dried at high temperatures to achieve the target moisture content. After the drying process, additional "ready-to-use" tobacco components (such as stems) can be added to the leaf strips. Then, for example, flavoring agents are sprayed onto the product in a rotating chamber to impart the final flavor to the matrix. The product is then conveyed to a silo, where it is blended to achieve homogenization. The final mixture is the "shredded filler." Another method of producing shredded filler involves cutting reconstituted tobacco sheets that have been produced by, for example, the casting or papermaking methods described above. Reconstituted tobacco sheets can be cut in a manner similar to that described above regarding tobacco leaves. Cut reconstituted tobacco sheets can be used alone as shredded filler or in combination with other shredded or minced tobacco.

[0011] In other instances, the aerosol-forming material in the matrix of an aerosol-forming article may be a tobacco-free material. For example, WO 2022 / 074157 discloses an aerosol-forming matrix containing hydroxypropyl methylcellulose, a cellulose-based fortifier, and at least one aerosol-forming agent, wherein the aerosol-forming agent content is greater than 30% by weight. The aerosol-forming matrix may contain nicotine.

[0012] In heated aerosol-generating articles, an aerosol-generating matrix containing aerosol-generating materials is heated to a relatively low temperature, such as about 350 degrees Celsius, to form an inhalable aerosol. To enable aerosol formation, the aerosol-generating materials preferably contain a high proportion of aerosol-forming agents and wetting agents, such as glycerol or propylene glycol. Compared to conventional combustible cigarettes, aerosol-generating materials typically contain a higher proportion of aerosol-forming agents and wetting agents, for example, between 15% and 75% by weight based on the weight of the aerosol-generating materials.

[0013] For aerosols to be generated, aerosol-forming agents must be released from the aerosol-generating material. To be released, these aerosol-forming agents must migrate from within the aerosol-generating material to its surface. Other volatile compounds (such as nicotine) must also migrate from within the aerosol-generating material to be entrained in the aerosol.

[0014] In the field of heated aerosol-generated products, it is important to minimize the unpleasant odors generated by the products.

[0015] According to a first aspect of the present invention, a heated aerosol generating article for generating inhalable aerosols is provided, the heated aerosol generating article comprising an aerosol generating matrix, wherein the aerosol generating matrix comprises an aerosol generating material, the aerosol generating material comprising an aerosol forming agent and a deodorizing agent, wherein the deodorizing agent is a compound of formula (I):

[0016]

[0017] Where each n is between 0 and 5, R a For CH3 or CH2CH3, R b It is CH3 or CH2CH3, and R a and R b They can be the same or different.

[0018] According to a second aspect of the present invention, an aerosol generating material is provided for use as an aerosol generating matrix in a heated aerosol generating article according to a first aspect of the present invention, wherein the aerosol generating material comprises an aerosol forming agent and a deodorizing agent, wherein the deodorizing agent is a compound of formula (I):

[0019]

[0020] Where each n is between 0 and 5, R a For CH3 or CH2CH3, R b It is CH3 or CH2CH3, and R a and R b They can be the same or different.

[0021] According to another aspect of the present invention, a method for preparing an aerosol-generating material according to a second aspect of the present invention is provided, wherein the method comprises the steps of:

[0022] - The deodorant is heated to a temperature above its melting point, wherein the deodorant is a compound of formula (I):

[0023]

[0024] Where each n is between 0 and 5, Ra For CH3 or CH2CH3, R b It is CH3 or CH2CH3, and R a and R b They can be the same or different;

[0025] - Introducing the deodorizer into the aerosol-generating material; and

[0026] - The deodorant is cured by cooling it to below its melting point.

[0027] According to another aspect of the present invention, an aerosol generation system is provided, the aerosol generation system comprising: an aerosol generation apparatus including a heating element; and an aerosol generation article for use with the aerosol generation apparatus, the aerosol generation article comprising an aerosol generation matrix, wherein the aerosol generation matrix comprises an aerosol generation material, the aerosol generation material comprising an aerosol forming agent and a deodorizer, wherein the deodorizer is a compound of formula (I):

[0028]

[0029] Where each n is between 0 and 5, R a For CH3 or CH2CH3, R b It is CH3 or CH2CH3, and R a and R b They can be the same or different.

[0030] Some users of heated tobacco products may perceive an unpleasant odor, commonly referred to in the art as "off-odor." Specifically, off-odor typically occurs during the preheating stage of heated tobacco products and is believed to result from the volatilization, or degradation and volatilization, of compounds in heated aerosol-generating articles, such as in the matrix portion of the article or in the packaging portion, which defines the aerosol-generating matrix and may be made of, for example, paper-based materials. Some examples of compounds that volatilize and are released from heated tobacco products and are believed to contribute to off-odor include carbonyl sulfide and hydrogen sulfide.

[0031] Unpleasant odors can make the experience of using heat-not-burn products unpleasant for users and those around them. Therefore, there is a need in the field to reduce odors in heat-not-burn products.

[0032] Advantageously, the inventors have discovered that by providing a matrix comprising an aerosol-generating material containing a deodorizing agent, wherein the deodorizing agent is a compound according to formula (I), odors will be at least partially reduced. The reduction in odor is believed to occur due to a decrease in the emission concentration of odor-causing compounds such as carbonyl sulfide and hydrogen sulfide as described above.

[0033] Unwilling to be bound by theory, the reduction of odor-causing compounds is thought to be because, during use, in the preheating phase of the heated aerosol generating apparatus, the compounds according to formula (I) can degrade to provide benzoic acid or substituted benzoic acid. Advantageously, it has been found that benzoic acid or substituted benzoic acid is released from the aerosol generating material in a controlled manner. Therefore, benzoic acid can effectively oxidize odor-causing compounds. Therefore, the concentration of odor-causing compounds can be reduced. Therefore, and advantageously, odor can be mitigated when using the heated aerosol generating article according to the invention.

[0034] Advantageously, the deodorant according to the invention has shown a satisfactory toxicological profile in preliminary evaluations and is therefore suitable for use in heated aerosol-generating articles intended for use by users. Advantageously, preliminary evaluations have found that the degradation products of the deodorant exhibit a satisfactory toxicological profile in the case of the invention. Therefore, the deodorant is suitable for use in heated aerosol-generating articles.

[0035] Advantageously, the method for preparing the aerosol-generating material according to the invention involves providing a deodorizing agent in liquid form. Therefore, advantageously, the deodorizing agent can be readily introduced, for example, into the aerosol-generating material, or, for example, as a layer on the surface of the aerosol-generating material. The deodorizing agent can also be readily mixed with a carrier compound to be introduced into the aerosol-generating material. Advantageously, the deodorizing agent according to the invention can be directly incorporated into the aerosol-generating material. Advantageously, the method according to the invention allows the deodorizing agent to be uniformly distributed in or on the aerosol-generating material.

[0036] Preferably, in some instances, the compound according to formula (I) is not combined with flavoring agents. For example, the compound according to formula (I) is not combined with menthol. Advantageously, the compound according to formula (I) can therefore be directly degraded to its degradation products.

[0037] Compounds according to formula (I) have been found to degrade into benzoic acid or substituted benzoic acid. Preferably, compounds according to formula (I) are precursors to benzoic acid or substituted benzoic acid. Compounds according to formula (I) can degrade into benzoic acid or substituted benzoic acid at 150 to 250 degrees Celsius. Therefore, compounds according to formula (I) can be considered as a source of benzoic acid or substituted benzoic acid in aerosol-generating materials. Advantageously, benzoic acid or substituted benzoic acid is considered to be an effective oxidant of odor-causing compounds, and therefore, compounds according to formula (I), acting as a source of benzoic acid or substituted benzoic acid, can effectively at least partially reduce the odor generated by heated aerosol-generating articles. Advantageously, benzoic acid has shown a satisfactory toxicological profile in the case of the present invention in preliminary evaluations. Therefore, compounds according to formula (I) as precursors to benzoic acid or substituted benzoic acid are suitable for use in heated aerosol-generating articles.

[0038] Preferably, the deodorant is stable against degradation at 80 degrees Celsius. The deodorant preferably does not decompose or degrade into its degradation products at 80 degrees Celsius. Advantageously, the deodorant therefore does not degrade at room temperature, for example, 25 degrees Celsius. Thus, for example, during transportation and before the user uses the heated aerosol-generating article, the deodorant remains stable in the aerosol-generating material (e.g., the deodorant does not degrade).

[0039] In some instances, the compounds according to formula (I) have melting points of 140 to 180 degrees Celsius. Advantageously, the compounds according to formula (I) can be solid at room temperature, for example at 25 degrees Celsius, and allow for the direct grasping and use of aerosol-generated articles.

[0040] In some instances, the compound according to formula (I) is preferably benzoyl-L-tartaric acid. Advantageously, benzoyl-L-tartaric acid has been found to be a precursor of benzoic acid. For example, benzoyl-L-tartaric acid is degradable to provide benzoic acid. Benzoyl-L-tartaric acid can be degraded in a temperature range of 150 to 250 degrees Celsius to provide benzoic acid. Advantageously, benzoyl-L-tartaric acid can be a source of benzoic acid in aerosol-generating materials. Advantageously, benzoyl-L-tartaric acid has shown a satisfactory toxicological profile in the context of this invention during preliminary evaluations. Therefore, benzoyl-L-tartaric acid is suitable for use in aerosol-generating articles.

[0041] In other examples, the compound according to formula (I) is preferably benzoyl-L-tartaric acid. Advantageously, benzoyl-L-tartaric acid has been found to be a precursor of substituted benzoic acid. For example, benzoyl-L-tartaric acid can be degraded to provide substituted benzoic acid. For example, benzoyl-L-tartaric acid can be degraded in a temperature range of 150 to 250 degrees Celsius to provide benzoic acid. Advantageously, benzoyl-L-tartaric acid has shown a satisfactory toxicological profile in preliminary evaluations in the context of this invention. Therefore, benzoyl-L-tartaric acid is suitable for use in aerosol-generating articles.

[0042] In the example, based on the weight of the aerosol-generating material, the aerosol-generating material contains 0.01% to 10% by weight of the compound according to formula (I). Preferably, based on the weight of the aerosol-generating material, the aerosol-generating material contains 0.05% to 8% by weight, preferably 0.1% to 5% by weight of the compound according to formula (I), more preferably, the aerosol-generating material contains 0.3% to 4% by weight, and even more preferably 0.5% to 3% by weight of the compound according to formula (I).

[0043] In some instances, the deodorant is distributed within the aerosol-generating material. The deodorant can be uniformly distributed within the aerosol-generating material. Uniform distribution within the aerosol-generating material means that, preferably, there are no separately distinguishable areas of the deodorant and the aerosol-generating material at room temperature, for example, 25 degrees Celsius. For example, the deodorant and the aerosol-generating material are completely homogenized.

[0044] Deodorants can be disposed on the surface of aerosol-generating materials. In some instances, the deodorant can be disposed as a layer on the surface of the aerosol-generating material, meaning that the deodorant is arranged on the surface of the aerosol-generating material, making the deodorant a separate entity from the aerosol-generating material.

[0045] Preferably, the deodorant is provided in a carrier compound and then disposed on the surface of the aerosol-generating material. Advantageously, providing the deodorant in a carrier compound can facilitate the uniform distribution of the deodorant on the surface of the aerosol-generating material. The carrier compound can be considered as a compound that can be aerosolized and act as a carrier for substances such as nicotine, thereby improving the delivery of said substance to the user. Preferably, the carrier compound is propylene glycol, glycerol, or ethanol.

[0046] In some instances, the aerosol-generating material includes tobacco-containing material. The term "tobacco-containing material" is used to refer to any material containing tobacco, including but not limited to tobacco leaves, tobacco ribs, tobacco stems, tobacco stalks, tobacco dust, expanded tobacco, reconstituted tobacco material, and homogenized tobacco material. Preferably, the tobacco-containing material is selected from reconstituted tobacco sheets, cast leaves, or shredded fillers (e.g., shredded fillers formed from tobacco leaves and / or shredded reconstituted tobacco sheets), as described above.

[0047] In other instances, the aerosol-generating material may comprise a tobacco-free material. The term "tobacco-free material" is used to refer to a material suitable for use in an aerosol-generating matrix and that does not contain tobacco. Therefore, a tobacco-free material is substantially free of tobacco (e.g., a tobacco-free material contains less than 1% by weight of tobacco, preferably less than 0.5% by weight of tobacco, and even more preferably less than 0.1% by weight of tobacco) or contains no measurable amount of tobacco. In some embodiments, the tobacco-free material may be a nicotine formulation. Preferably, the nicotine formulation is not derived from a tobacco-containing material. For example, the aerosol-generating material may be a gel or film composition comprising nicotine, at least one gelling agent, and an aerosol forming agent. An aerosol-generating matrix comprising a tobacco-free aerosol-generating material may contain hydroxypropyl methylcellulose, a cellulose-based fortifier, and at least one aerosol forming agent, wherein the aerosol forming agent content is greater than 30% by weight.

[0048] Aerosol-generating materials contain aerosol forming agents. Aerosol forming agents can be any suitable known compound or mixture of compounds that contributes to the formation of a dense and stable aerosol during use. Aerosol forming agents promote substantially thermal degradation of the aerosol at temperatures applied during the normal use of the aerosol-generating article. Suitable aerosol forming agents include, for example, polyols, such as triethylene glycol, 1,3-butanediol, propylene glycol, and glycerol; esters of polyols, such as mono, di, or triacetic acid esters of glycerol; aliphatic esters of mono, di, or polycarboxylic acids, such as dimethyl dodecanoate and dimethyl tetradecanoate; and combinations thereof.

[0049] Aerosol forming agents may include one or more of glycerol and propylene glycol. Aerosol forming agents may consist of glycerol or propylene glycol, or a combination of glycerol and propylene glycol.

[0050] In embodiments where the aerosol generating material according to this specification is a tobacco-containing material such as cast leaf or shredded filler and is intended for use in an aerosol generating matrix in a heated aerosol generating article, the aerosol generating material may have an aerosol forming agent content of about 5% to about 30% by weight on a dry weight basis. Tobacco-containing aerosol generating materials intended for use in electrically operated aerosol generating systems with heating elements may preferably contain about 5% to about 20% of the dry weight of the aerosol generating material, for example, about 15% to about 20% of the dry weight of the aerosol generating material, as an aerosol forming agent.

[0051] Typically, in examples where the aerosol generating material is a tobacco-free material, the aerosol generating material preferably contains a larger amount of aerosol forming agent than would be present in examples where the aerosol generating material is a tobacco-containing material. In embodiments where the aerosol generating material according to this specification is a tobacco-free material and is intended for use in an aerosol generating matrix in a heated aerosol generating article, the aerosol generating material may have an aerosol forming agent content of about 30% to about 70% by weight on a dry weight basis. Tobacco-free aerosol generating materials intended for use in electrically operated aerosol generating systems with heating elements may preferably contain about 35% to about 60% of the dry weight of the aerosol generating material, for example, about 40% to about 55% of the dry weight of the aerosol generating material, of an aerosol forming agent.

[0052] For aerosol generating materials intended for use in electrically operated aerosol generating systems with heating elements, the aerosol forming agent may preferably be glycerol (also known as glycerin / glycerine) or propylene glycol.

[0053] Preferably, the aerosol forming agent is selected from the list of the following: propylene glycol, triethylene glycol, 1,3-butanediol, glycerol, glyceryl monoacetate, glyceryl diacetate, glyceryl triacetate, dimethyl dodecanoate, and dimethyl tetradecanoate. Glycerol is preferred as the aerosol forming agent. In other embodiments, propylene glycol is preferred as the aerosol forming agent. In still other embodiments, the aerosol forming agent is a mixture of glycerol and propylene glycol.

[0054] In some instances of preparing aerosol-generating materials, a deodorant is introduced into the aerosol-generating material prior to the flavoring agent. This is believed to at least partially prevent the deodorant from forming a complex with the flavoring agent. A flavoring agent can be considered a chemical compound that provides a desired flavor or aroma. Examples of flavoring agents include, but are not limited to, vanillin, linalool, menthol, guaiacol, thymol, coumarin, eugenol, cinnamaldehyde, and geraniol.

[0055] A method of introducing a deodorant into an aerosol-generating material may include providing a compound according to formula (I) into a slurry containing the aerosol-generating material, and then casting the slurry to form a sheet of the aerosol-generating material. Advantageously, the deodorant can thus be uniformly distributed in the aerosol-generating material.

[0056] In some instances, methods of introducing deodorants into aerosol-generating materials include spraying a compound according to formula (I) onto the aerosol-generating material.

[0057] For example, the deodorizer can be sprayed directly onto the surface of the aerosol-generating material. In other instances, the deodorizer can be provided in a carrier compound and then sprayed onto the surface of the aerosol-generating material. Advantageously, the deodorizer can be deposited as a uniform layer on the surface of the aerosol-generating material.

[0058] As stated, the term "heated aerosol generating article" refers to an aerosol generating article for generating aerosols, the aerosol generating article comprising an aerosol generating matrix that is intended to be heated rather than burned in order to release volatile compounds that can form aerosols.

[0059] As described herein, the term "aerosol generating material" refers to a material capable of releasing volatile compounds that can form aerosols when heated. The aerosols generated by the aerosol generating matrix of the aerosol generating articles described herein can be visible or invisible and can contain vapors (e.g., fine particles of a gaseous substance that are typically liquid or solid at room temperature) as well as condensed vapors and droplets.

[0060] As mentioned, the term "aerosol forming agent" refers to a component that, when heated to a temperature above a specific volatilization temperature of the aerosol-generating material, can volatilize and deliver desired substances, such as nicotine and / or flavorings, into the aerosol. An aerosol forming agent can be any suitable compound or mixture of compounds that facilitates the formation of a dense and stable aerosol during use and is highly resistant to thermal degradation at the operating temperature of heated aerosol-generating articles. Different aerosol forming agents volatilize at different temperatures. Therefore, an aerosol forming agent can be selected based on its ability to remain stable at or near room temperature but volatilize at higher temperatures, such as 40 to 450 degrees Celsius.

[0061] As described, compounds according to formula (I) do not complex with flavoring agents, meaning that compounds according to formula (I) are not linked or bonded to flavoring agents. There is essentially no covalent or non-covalent bond formation between compounds according to formula (I) and flavoring agents. For example, compounds according to formula (I) do not form supramolecular assemblies with flavoring agents.

[0062] In some embodiments, the compound according to formula (I) is a precursor of benzoic acid or a substituted benzoic acid, meaning that at a temperature of 150 to 250 degrees Celsius, the compound according to formula (I) will at least partially degrade to provide benzoic acid, or to provide a substituted benzoic acid, if R is present in the compound according to formula (I). a or R b And if it is CH3 or CH2CH3.

[0063] As mentioned, "substituted benzoic acid" refers to a benzoic acid molecule in which at least one hydrogen atom in the meta-, para-, or ortho-position of the aromatic ring is replaced by a substituent. For example, in some embodiments of the present invention, substituted benzoic acid may refer to benzoic acid in which a hydrogen atom in the aromatic ring is replaced by a methyl or ethyl substituent. An example of substituted benzoic acid is tolueneic acid.

[0064] As stated, the term "melting point" refers to the clearing point or complete melting point of a lipid. This corresponds to a temperature (in degrees Celsius) at which the lipid is fully liquid and completely clear without any solid particles remaining. The clearing point or melting point of lipids can be measured using many methods known in the art, such as capillary technology or the Stuart SMP50 melting point apparatus.

[0065] As described above, the term "aerosol generating apparatus" refers to an apparatus that includes a heater element that interacts with an aerosol generating matrix of an aerosol generating article to generate an aerosol.

[0066] The invention is defined in the claims. However, a non-exhaustive list of non-limiting examples is provided below. Any one or more features of these examples may be combined with any one or more features of another example, embodiment, or aspect described herein.

[0067] EX1. A heated aerosol generating article for generating inhalable aerosols, the heated aerosol generating article comprising an aerosol generating matrix, wherein the aerosol generating matrix comprises an aerosol generating material, the aerosol generating material comprising an aerosol forming agent and a deodorizing agent, wherein the deodorizing agent is a compound of formula (I):

[0068]

[0069] Where each n is between 0 and 5, R a For CH3 or CH2CH3, R b It is CH3 or CH2CH3, and R a and R b They can be the same or different.

[0070] EX2. A heated aerosol-generating article according to Example EX1, wherein the compound according to formula (I) is not combined with a flavoring agent.

[0071] EX3. A heated aerosol generating article according to any one of Examples EX1 to EX2, wherein the compound according to formula (I) is benzoic acid or a precursor of a substituted benzoic acid.

[0072] EX4. A heated aerosol generating article according to any one of Examples EX1 to EX3, wherein the deodorant is stable against degradation at 80 degrees Celsius.

[0073] EX5. A heated aerosol generating article according to any one of Examples EX1 to EX4, wherein the compound according to formula (I) has a melting point of 140 to 180 degrees Celsius.

[0074] EX6. A heated aerosol-generating article according to any one of Examples EX1 to EX5, wherein each n is 0 or 1.

[0075] EX7. A heated aerosol-generated article according to any one of Examples EX1 to EX6, wherein the two n are the same.

[0076] EX8. A heated aerosol-generated article according to any one of Examples EX1 to EX7, where each n is 0.

[0077] EX9. A heated aerosol-generating article according to any one of Examples EX1 to EX7, wherein each n is 1.

[0078] EX10. A heated aerosol-generating article according to any one of Examples EX1 to EX9, wherein R a and R b same.

[0079] EX11. A heated aerosol-generating article according to any one of Examples EX1 to EX10, wherein R a It is CH3.

[0080] EX12. A heated aerosol-generating article according to any one of Examples EX1 to EX11, wherein R b It is CH3.

[0081] EX13. A heated aerosol generating article according to any one of Examples EX1 to EX12, wherein the compound according to formula (I) is benzoyl-L-tartaric acid.

[0082] EX14. A heated aerosol generating article according to any one of Examples EX1 to EX12, wherein the compound according to formula (I) is benzoyl-L-tartaric acid.

[0083] EX15. A heated aerosol generating article according to any one of Examples EX1 to EX14, wherein the compound according to formula (I) is provided in the aerosol generating material in an amount of 0.01% to 10% by weight, based on the weight of the aerosol generating material.

[0084] EX16. A heated aerosol generating article according to any one of Examples EX1 to EX15, wherein the deodorant is distributed within the aerosol generating material.

[0085] EX17. A heated aerosol generating article according to any one of Examples EX1 to EX16, wherein the deodorant is disposed on the surface of the aerosol generating material.

[0086] EX18. A heated aerosol generating article according to Example EX17, wherein the deodorant is disposed as a layer on the surface of the aerosol generating material.

[0087] EX19. A heated aerosol generating article according to any one of Examples EX17 to EX18, wherein the deodorant is provided in a carrier compound and then disposed on the surface of the aerosol generating material.

[0088] EX20. A heated aerosol-generating article according to Example EX19, wherein the carrier compound is propylene glycol, glycerol, or ethanol.

[0089] EX21. A heated aerosol generating article according to any one of Examples EX1 to EX20, wherein the aerosol generating material comprises a tobacco-containing material.

[0090] EX22. A heated aerosol generating material according to Example EX21, wherein the tobacco-containing material is selected from reconstituted tobacco sheets, cast leaves, or shredded fillers.

[0091] EX23. A heated aerosol generating article according to any one of Examples EX1 to EX20, wherein the aerosol generating material comprises a tobacco-free material.

[0092] EX24. A heated aerosol generating article according to any one of Examples EX1 to EX23, wherein the aerosol forming agent is selected from the list of the following: propylene glycol, triethylene glycol, 1,3-butanediol, glycerol, glyceryl monoacetate, glyceryl diacetate, glyceryl triacetate, dimethyl dodecanoate, and dimethyl tetradecanoate.

[0093] EX25. An aerosol generating material for use as an aerosol generating matrix in a heated aerosol generating article according to any one of Examples EX1 to EX24, wherein the aerosol generating material comprises an aerosol forming agent and a deodorizing agent, wherein the deodorizing agent is a compound of formula (I):

[0094]

[0095] Where each n is between 0 and 5, R a For CH3 or CH2CH3, R b It is CH3 or CH2CH3, and R a and R b They can be the same or different.

[0096] EX26. An aerosol generating material according to Example EX25, wherein the compound according to formula (I) is not compounded with a flavoring agent.

[0097] EX27. An aerosol generating material according to any one of Examples EX25 to EX26, wherein the compound according to formula (I) is a precursor of benzoic acid or a substituted benzoic acid.

[0098] EX28. An aerosol generating material according to any one of Examples EX25 to EX27, wherein the deodorant is stable against degradation at 80 degrees Celsius.

[0099] EX29. An aerosol generating material according to any one of Examples EX25 to EX28, wherein the compound according to formula (I) has a melting point of 140 to 180 degrees Celsius.

[0100] EX30. Aerosol generating material according to any one of Examples EX25 to EX29, where each n is 0 or 1.

[0101] EX31. An aerosol-generating material according to any one of Examples EX25 to EX30, where the two n are the same.

[0102] EX32. Aerosol generating material according to any one of Examples EX25 to EX31, where each n is 0.

[0103] EX33. An aerosol-generating material according to any one of Examples EX25 to EX31, where each n is 1.

[0104] EX34. An aerosol-generating material according to any one of Examples EX25 to EX33, wherein R a and R b same.

[0105] EX35. An aerosol-generating material according to any one of Examples EX25 to EX34, wherein R a It is CH3.

[0106] EX36. An aerosol-generating material according to any one of Examples EX25 to EX35, wherein R b It is CH3.

[0107] EX37. An aerosol generating material according to any one of Examples EX25 to EX36, wherein the compound according to formula (I) is dibenzoyl-L-tartaric acid.

[0108] EX38. An aerosol generating material according to any one of Examples EX25 to EX36, wherein the compound according to formula (I) is benzoyl-L-tartaric acid.

[0109] EX39. An aerosol generating material according to any one of Examples EX25 to EX38, wherein the compound according to formula (I) is provided in the aerosol generating material in an amount of 0.01% to 10% by weight, based on the weight of the aerosol generating material.

[0110] EX40. An aerosol generating material according to any one of Examples EX25 to EX39, wherein the deodorant is distributed within the aerosol generating material.

[0111] EX41. An aerosol generating material according to any one of Examples EX25 to EX40, wherein the deodorant is disposed on the surface of the aerosol generating material.

[0112] EX42. An aerosol generating material according to Example EX41, wherein the deodorant is disposed as a layer on the surface of the aerosol generating material.

[0113] EX43. An aerosol generating material according to any one of Examples EX41 to EX42, wherein the deodorant is provided in a carrier compound and then disposed on the surface of the aerosol generating material.

[0114] EX44. An aerosol generating material according to Example EX43, wherein the carrier compound is propylene glycol, glycerol, or ethanol.

[0115] EX45. An aerosol generating material according to any one of Examples EX25 to EX44, wherein the aerosol generating material comprises a tobacco-containing material.

[0116] EX46. An aerosol-generating material according to Example EX45, wherein the tobacco-containing material is selected from reconstituted tobacco sheets, cast leaves, or shredded fillers.

[0117] EX47. An aerosol generating material according to any one of Examples EX25 to EX44, wherein the aerosol generating material comprises a tobacco-free material.

[0118] EX48. An aerosol generating material according to any one of Examples EX25 to EX47, wherein the aerosol forming agent is selected from the list of the following: propylene glycol, triethylene glycol, 1,3-butanediol, glycerol, glyceryl monoacetate, glyceryl diacetate, glyceryl triacetate, dimethyl dodecanoate, and dimethyl tetradecanoate.

[0119] EX49. A method for preparing an aerosol-generating material according to any one of Examples EX25 to EX48, the method comprising the steps of:

[0120] - The deodorant is heated to a temperature above its melting point, wherein the deodorant is a compound of formula (I):

[0121]

[0122] Where each n is between 0 and 5, R a For CH3 or CH2CH3, R b It is CH3 or CH2CH3, and R a and R b They can be the same or different.

[0123] - Introducing the deodorizer into the aerosol-generating material; and

[0124] - The deodorant is cured by cooling it to below its melting point.

[0125] EX50. A method for preparing an aerosol generating material according to Example EX49, wherein the deodorant is introduced into the aerosol generating material prior to the flavoring agent.

[0126] EX51. A method for preparing an aerosol generating material according to any one of Examples EX49 to EX50, wherein the method of introducing the deodorant into the aerosol generating material comprises providing the compound according to formula (I) in a slurry containing the aerosol generating material, and then casting the slurry to form a sheet of the aerosol generating material.

[0127] EX52. A method for preparing an aerosol generating material according to any one of Examples EX49 to EX51, wherein the method of introducing the deodorant into the aerosol generating material comprises spraying the compound according to formula (I) onto the aerosol generating material.

[0128] EX53. A method for preparing an aerosol generating material according to Example EX52, wherein the compound according to formula (I) is provided in a carrier compound and then sprayed onto the surface of the aerosol generating material.

[0129] EX54. A method for preparing aerosol generating materials according to any one of Examples EX49 to EX53, wherein the compound according to formula (I) is not combined with a flavoring agent.

[0130] EX55. A method for preparing aerosol generating materials according to any one of Examples EX49 to EX54, wherein the compound according to formula (I) is a precursor of benzoic acid or a substituted benzoic acid.

[0131] EX56. A method for preparing an aerosol-generating material according to any one of Examples EX49 to EX55, wherein the deodorant is stable against degradation at 80 degrees Celsius.

[0132] EX57. A method for preparing aerosol generating materials according to any one of Examples EX49 to EX56, wherein the compound according to formula (I) has a melting point of 140 to 180 degrees Celsius.

[0133] EX58. A method for preparing aerosol-generating materials according to any one of Examples EX49 to EX57, wherein each n is 0 or 1.

[0134] EX59. A method for preparing aerosol-generating materials according to any one of Examples EX49 to EX58, wherein the two n are the same.

[0135] EX60. A method for preparing aerosol-generating materials according to any one of Examples EX49 to EX59, wherein each n is 0.

[0136] EX61. A method for preparing aerosol-generating materials according to any one of Examples EX49 to EX59, wherein each n is 1.

[0137] EX62. A method for preparing aerosol-generating materials according to any one of Examples EX49 to EX61, wherein R a and R b same.

[0138] EX63. A method for preparing aerosol-generating materials according to any one of Examples EX49 to EX62, wherein R a It is CH3.

[0139] EX64. A method for preparing aerosol-generating materials according to any one of Examples EX49 to EX63, wherein R b It is CH3.

[0140] EX65. A method for preparing an aerosol-generating material according to any one of Examples EX49 to EX64, wherein the compound according to formula (I) is benzoyl-L-tartaric acid.

[0141] EX66. A method for preparing aerosol generating materials according to any one of Examples EX49 to EX64, wherein the compound according to formula (I) is benzoyl-L-tartaric acid.

[0142] EX67. A method for preparing an aerosol generating material according to any one of Examples EX49 to EX66, wherein the compound according to formula (I) is provided in the aerosol generating material in an amount of 0.01% to 10% by weight, based on the weight of the aerosol generating material.

[0143] EX68. A method for preparing an aerosol generating material according to any one of Examples EX49 to EX67, wherein the deodorant is distributed within the aerosol generating material.

[0144] EX69. A method for preparing an aerosol generating material according to any one of Examples EX49 to EX68, wherein the deodorant is disposed on the surface of the aerosol generating material.

[0145] EX70. A method for preparing an aerosol generating material according to Example EX69, wherein the deodorant is disposed as a layer on the surface of the aerosol generating material.

[0146] EX71. A method for preparing an aerosol generating material according to any one of Examples EX69 to EX70, wherein the deodorant is provided in a carrier compound and then disposed on the surface of the aerosol generating material.

[0147] EX72. A method for preparing aerosol-generating materials according to Example EX71, wherein the carrier compound is propylene glycol, glycerol, or ethanol.

[0148] EX73. A method for preparing an aerosol-generating material according to any one of Examples EX49 to EX72, wherein the aerosol-generating material comprises a tobacco-containing material.

[0149] EX74. A method for preparing aerosol-generating materials according to Example EX73, wherein the tobacco-containing material is selected from reconstituted tobacco sheets, cast leaves, or shredded fillers.

[0150] EX75. A method for preparing an aerosol generating material according to any one of Examples EX49 to EX72, wherein the aerosol generating material comprises a tobacco-free material.

[0151] EX76. A method for preparing an aerosol-generating material according to any one of Examples EX49 to EX75, wherein the aerosol forming agent is selected from the list of the following: propylene glycol, triethylene glycol, 1,3-butanediol, glycerol, glyceryl monoacetate, glyceryl diacetate, glyceryl triacetate, dimethyl dodecanoate, and dimethyl tetradecanoate.

[0152] EX77. An aerosol generation system, the aerosol generation system comprising:

[0153] An aerosol generating device including a heating element; and

[0154] An aerosol generating article for use with the aerosol generating apparatus, the aerosol generating article comprising an aerosol generating matrix, wherein the aerosol generating matrix comprises an aerosol generating material, the aerosol generating material comprising an aerosol forming agent and a deodorizing agent, wherein the deodorizing agent is a compound of formula (I):

[0155]

[0156] Where each n is between 0 and 5, R a For CH3 or CH2CH3, R b It is CH3 or CH2CH3, and R a and R b They can be the same or different.

[0157] EX78. An aerosol generation system according to Example EX77, wherein the compound according to formula (I) is not combined with a flavoring agent.

[0158] EX79. An aerosol generating system according to any one of Examples EX77 to EX78, wherein the compound according to formula (I) is a precursor of benzoic acid or a substituted benzoic acid.

[0159] EX80. An aerosol generation system according to any one of Examples EX77 to EX79, wherein the deodorant is stable against degradation at 80 degrees Celsius.

[0160] EX81. An aerosol generating system according to any one of Examples EX77 to EX80, wherein the compound according to formula (I) has a melting point of 140 to 180 degrees Celsius.

[0161] EX82. An aerosol generation system according to any one of Examples EX77 to EX81, where each n is 0 or 1.

[0162] EX83. An aerosol generation system based on any one of Examples EX77 to EX82, where the two n are the same.

[0163] EX84. An aerosol generation system based on any one of Examples EX77 to EX83, where each n is 0.

[0164] EX85. An aerosol generation system according to any one of Examples EX77 to EX83, where each n is 1.

[0165] EX86. An aerosol generation system according to any one of Examples EX77 to EX85, wherein R a and R b same.

[0166] EX87. An aerosol generation system according to any one of Examples EX77 to EX86, wherein R a It is CH3.

[0167] EX88. An aerosol generation system according to any one of Examples EX77 to EX87, wherein R b It is CH3.

[0168] EX89. An aerosol generating system according to any one of Examples EX77 to EX88, wherein the compound according to formula (I) is benzoyl-L-tartaric acid.

[0169] EX90. An aerosol generating system according to any one of Examples EX77 to EX88, wherein the compound according to formula (I) is benzoyl-L-tartaric acid.

[0170] EX91. An aerosol generating system according to any one of Examples EX77 to EX90, wherein the compound according to formula (I) is provided in the aerosol generating material in an amount of 0.01% to 10% by weight, based on the weight of the aerosol generating material.

[0171] EX92. An aerosol generating system according to any one of Examples EX77 to EX91, wherein the deodorant is distributed within the aerosol generating material.

[0172] EX93. An aerosol generating system according to any one of Examples EX77 to EX92, wherein the deodorant is disposed on the surface of the aerosol generating material.

[0173] EX94. An aerosol generating system according to Example EX93, wherein the deodorant is disposed as a layer on the surface of the aerosol generating material.

[0174] EX95. An aerosol generating system according to any one of Examples EX93 to EX94, wherein the deodorant is provided in a carrier compound and then disposed on the surface of the aerosol generating material.

[0175] EX96. An aerosol generation system according to Example EX95, wherein the carrier compound is propylene glycol, glycerol, or ethanol.

[0176] EX97. An aerosol generating system according to any one of Examples EX77 to EX96, wherein the aerosol generating material comprises a tobacco-containing material.

[0177] EX98. An aerosol generation system according to Example EX97, wherein the tobacco-containing material is selected from reconstituted tobacco sheets, cast leaves, or shredded fillers.

[0178] EX99. An aerosol generating system according to any one of Examples EX77 to EX96, wherein the aerosol generating material comprises a tobacco-free material.

[0179] EX100. An aerosol generating system according to any one of Examples EX77 to EX99, wherein the aerosol forming agent is selected from the list of the following: propylene glycol, triethylene glycol, 1,3-butanediol, glycerol, glyceryl monoacetate, glyceryl diacetate, glyceryl triacetate, dimethyl dodecanoate, and dimethyl tetradecanoate.

[0180] Example 1 - Headspace GM-MS Evaluation of Cast Leaf Aerosol Generation Materials

[0181] Materials and methods

[0182] The Shimadzu QP-2010 Ultra or QP-2010 Plus gas chromatograph-mass spectrometer is equipped with a split / splitless injector and GCMS solution software.

[0183] The Shimadzu AOC-5000 autosampler is equipped with headspace options (temperature-controlled and gas-flushed injection needles).

[0184] Headspace injection kit 2.5 mL, Gerstel reference number 010055-025-00 (or equivalent).

[0185] 2.5 mL syringe - HS-0.64-57.0-RH (PTFE) for Gerstel headspace syringe holder, Gerstel reference number 022001-326-00 (or equivalent).

[0186] Split / Non-split Inj FocusLiner™ LNRGC2010 / 2014, 3.4mm ID, Shimadzu Reference No. 221-75188 (or equivalent).

[0187] High-temperature septum at the inlet, Thermogreen (maximum injection temperature 450℃), Shimadzu reference number 221-35507-02SP.

[0188] J&W Porabond Q analytical column, 25m x 0.25mm x 3.0um, Agilent reference number CP7348 (or equivalent).

[0189] Programmable electronic aerosol generation support device (iQOS 2.2).

[0190] Shimadzu QP2010 Gas Chromatograph-Mass Spectrometer Instrument Acquisition Parameters:

[0191]

[0192]

[0193] Mass spectrometry instrument acquisition parameters

[0194]

[0195] Parameters used to construct data processing methods

[0196]

[0197] Sample preparation

[0198] A reference sample of cast tobacco leaves was prepared according to conventional methods known in the art, wherein the reference sample contained 75% tobacco and 19.5% aerosol forming agent. The reference sample did not contain any deodorizing agent.

[0199] Sample 1 was prepared in the same manner as the reference sample. However, a benzoyl-L-tartaric acid / ethanol solution of 0.3% by weight based on the weight of the cast leaf was injected into Sample 1.

[0200] Sample 2 was prepared in the same manner as the reference sample. However, a benzoyl-L-tartaric acid / ethanol solution of 3.3% by weight based on the weight of the cast leaf was injected into Sample 2.

[0201] Test program

[0202] Hydrogen sulfide and carbonyl sulfide are released during the preheating stage of heated aerosol products and can cause users to perceive an odor.

[0203] The concentrations of hydrogen sulfide and carbonyl sulfide in the headspace of the heated aerosol generating material during the preheating stage were tested on the reference sample, sample 1, and sample 2 to quantify the concentrations.

[0204] Samples were aerosolized in 60 mL headspace vials using a programmable electronic aerosol generation scaffold (which shuts off after a 30-second preheating phase). The headspace of each sample was analyzed using a GC-EI-MS instrument (Shimadzu QP2010 ultra and / or Shimadzu QP2010 plus) in selective ion monitoring (SIM) mode.

[0205] The instrument response was calibrated using a gaseous mixture of two target compounds at known concentrations in the air as calibration standards, and the response function was constructed using external standards and a linear regression model.

[0206] In this example, four sets of replicate samples (four different measurement solutions) are generated to quantify the samples.

[0207] result

[0208] The results of the headspace evaluation are shown in Table 1 below.

[0209] Table 1

[0210]

[0211] In the table above, CV stands for "coefficient of variation" (relative standard deviation / mean (percentage)).

[0212] The results showed that there was no detectable decrease in hydrogen sulfide concentration in the reference sample without deodorizer. Similarly, there was no detectable decrease in the concentration of carbonyl sulfide released in the reference sample.

[0213] However, in Sample 1 containing 0.3% by weight of deodorant, the emission concentrations of both hydrogen sulfide and carbonyl sulfide decreased by 18% and 14%, respectively.

[0214] As for Sample 2, which contained a higher concentration of deodorant, the reduction in each odor-causing compound was more significant. In Sample 2, the reduction percentage of hydrogen sulfide was 44%, and the reduction percentage of carbonyl sulfide was 38%.

[0215] Therefore, these results show that odor-causing compounds such as hydrogen sulfide and carbonyl sulfide are reduced in aerosol-generating materials containing deodorizers. Thus, embodiments of the present invention can effectively reduce odors in heated non-combustible products.

[0216] For the purposes of this specification and the appended claims, unless otherwise stated, all figures representing quantities, quantities, percentages, etc., shall be understood to be modified by the term "about" in all cases. Furthermore, all ranges include the disclosed maximum and minimum points, and include any intermediate ranges that may be specifically listed or not listed herein. Thus, in this context, the number A is understood to be A ± 5% of A. In this context, the number A can be considered to include a value within the general standard error for the measurement of the property modified by the number A. In some cases used in the appended claims, the number A may deviate from the percentages listed above, provided that the amount of deviation from A does not materially affect the essential and novel features of the claimed invention. Moreover, all ranges include the disclosed maximum and minimum points, and include any intermediate ranges that may be specifically listed or not listed herein.

Claims

1. A heated aerosol generating article for generating inhalable aerosols, the heated aerosol generating article comprising an aerosol generating matrix, wherein the aerosol generating matrix comprises an aerosol generating material, the aerosol generating material comprising an aerosol forming agent and a deodorizer, wherein the deodorizer is a compound of formula (I): Where each n is between 0 and 5, R a For CH3 or CH2CH3, R b It is CH3 or CH2CH3, and R a and R b They can be the same or different.

2. The heated aerosol generating article according to claim 1, wherein the compound according to formula (I) is not combined with a flavoring agent.

3. The heated aerosol generating article according to any one of claims 1 to 2, wherein the compound according to formula (I) is benzoic acid or a precursor of a substituted benzoic acid.

4. The heated aerosol generating article according to any one of claims 1 to 3, wherein the deodorant is stable against degradation at 80 degrees Celsius.

5. The heated aerosol generating article according to any one of claims 1 to 4, wherein the compound according to formula (I) has a melting point of 140 to 180 degrees Celsius.

6. The heated aerosol generating article according to any one of claims 1 to 5, wherein the compound according to formula (I) is benzoyl-L-tartaric acid or benzoyl-L-tartaric acid.

7. The heated aerosol generating article according to any one of claims 1 to 6, wherein, based on the weight of the aerosol generating material, the aerosol generating material comprises 0.01% to 10% by weight of the compound according to formula (I).

8. The heated aerosol generating article according to any one of claims 1 to 7, wherein the deodorant is distributed within the aerosol generating material.

9. The heated aerosol generating article according to any one of claims 1 to 8, wherein the deodorant is disposed on the surface of the aerosol generating material.

10. The heated aerosol generating article according to any one of claims 1 to 9, wherein the aerosol generating material comprises a tobacco-containing material.

11. The heated aerosol generating material according to claim 10, wherein the tobacco-containing material is selected from reconstituted tobacco sheets, cast leaves, or shredded fillers.

12. The heated aerosol generating article according to any one of claims 1 to 9, wherein the aerosol generating material comprises a tobacco-free material.

13. An aerosol generating material for use as an aerosol generating matrix in a heated aerosol generating article according to any one of claims 1 to 12, wherein the aerosol generating material comprises an aerosol forming agent and a deodorizing agent, wherein the deodorizing agent is a compound of formula (I): Where each n is between 0 and 5, R a For CH3 or CH2CH3, R b It is CH3 or CH2CH3, and R a and R b They can be the same or different.

14. A method for preparing the aerosol generating material according to claim 13, the method comprising the steps of: - The deodorant is heated to a temperature above its melting point, wherein the deodorant is a compound of formula (I): Where each n is between 0 and 5, R a For CH3 or CH2CH3, R b It is CH3 or CH2CH3, and R a and R b They can be the same or different; - Introducing the deodorizer into the aerosol-generating material; and - The deodorant is cured by cooling it to below its melting point.

15. An aerosol generation system, the aerosol generation system comprising: Aerosol generating device including heating element; as well as An aerosol generating article for use with the aerosol generating apparatus, the aerosol generating article comprising an aerosol generating matrix, wherein the aerosol generating matrix comprises an aerosol generating material, the aerosol generating material comprising an aerosol forming agent and a deodorizing agent, wherein the deodorizing agent is a compound of formula (I): Where each n is between 0 and 5, R a For CH3 or CH2CH3, R b It is CH3 or CH2CH3, and R a and R b They can be the same or different.

Images