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    • 专利摘要:
    An aerosolable material for use in an aerosol generating assembly, the aerosolable material comprising a tobacco material, an unencapsulated flavorant, and an encapsulated flavorant.
    公开号:CH715043A2
    申请号:CH6802019
    申请日:2019-05-24
    公开日:2019-11-29
    发明作者:Rees Kelly；Todd Richard
    申请人:Nicoventures Trading Ltd；
    IPC主号:
    专利说明:

    Description: The present invention relates to the generation of aerosols and in particular, but not exclusively, an aerosol generating assembly, a method of generating an aerosol, an aerosolizable material usable for generating an aerosol and an article generating an aerosol. aerosol usable in an aerosol generator assembly.
    Smoking items such as cigarettes, cigars and the like burns tobacco during use to create tobacco smoke. The alternatives to these types of items release compounds without burning.
    An apparatus is known for heating an aerosolizable material in order to volatilize at least one component of the aerosolizable material, generally to form an aerosol which can be inhaled, without burning the aerosolizable material or causing the combustion thereof. These devices are sometimes described as "combustion heaters" or "tobacco heaters" (THP) or "tobacco heaters" or the like. Various various configurations for volatilizing at least one component of the aerosolizable material are known.
    It can be, for example, tobacco or other products other than tobacco or a combination, such as a mixture, which may or may not contain nicotine.
    Some known devices for heating tobacco include more than one heating device, each heating device being configured to heat different parts of the aerosolizable material used. This then makes it possible to heat the different parts of the aerosolizable material at different times and / or at different temperatures in order to ensure the longevity of the formation of aerosols throughout the duration of use.
    According to a first aspect of the present invention, there is provided an aerosolizable material usable in an aerosol generating assembly, the aerosolizable material comprising a tobacco material, a non-encapsulated flavoring agent and an encapsulated flavoring agent.
    In some cases, the aerosolizable material is in the form of a component comprising at least two sections, and the two sections have different compositions.
    - In some cases, the two sections include a non-encapsulated flavoring agent, and in which only one of the two sections comprises an encapsulated flavoring agent.
    - In some cases, only one of the two sections comprises a non-encapsulated flavoring agent, and only one of the two sections comprises an encapsulated flavoring agent. In some cases, the non-encapsulated flavoring agent and the encapsulated flavoring agent are provided in different sections. In some cases, the non-encapsulated flavoring agent and the encapsulated flavoring agent are provided in the same section.
    - In either of these cases, tobacco materials can be provided in either or both of the following cases. In some special cases where the encapsulated flavoring agent is only supplied in one section, tobacco material can be provided in at least the other section.
    In some cases, the encapsulated flavoring agent is applied to a cap placed around the tobacco material, suitably in the form of a film.
    In some cases, the encapsulated flavoring agent provides a multimodal flavoring agent release profile from the encapsulated flavoring agent upon heating. In some cases, the encapsulated flavor provides a bimodal flavor release profile from the encapsulated flavor upon heating.
    In some cases, the aerosolizable material is in the form of a rod-shaped component.
    In some cases, the non-encapsulated flavoring agent includes menthol and / or a cooling agent. In some cases, the encapsulated flavoring agent includes menthol and / or a refrigerant.
    In some cases, the encapsulated flavoring agent comprises an encapsulation material, and in which the encapsulation material comprises at least one material from a polysaccharide; cellulosic material; gelatin; eraser; protein material; a polyol matrix material; a gel; a wax; polyurethane; polymerized and hydrolyzed vinyl acetate, polyester, polycarbonate, polymethacrylate, polyglycol, polyethylene, polystyrene, polypropylene, polyvinyl chloride or a mixture thereof.
    A second aspect of the invention provides an aerosol generating article intended to be used in an aerosol generating assembly, the article comprising an aerosolizable material according to the first aspect of the invention and a cooling element and / or a filter.
    A third aspect of the invention provides an aerosol generator assembly comprising a heating device and an aerosolizable material according to the first aspect, in which the heating device is arranged to heat the aerosolizable material used to generate an aerosol.
    In some cases, the aerosol generator assembly includes a heating device and an aerosolizable generator article according to the second aspect.
    In some cases, the aerosolizable material comprises at least two sections, and in which the assembly is configured to provide a different thermal profile to each of the sections of the aerosolizable material. In some cases,
    CH 715 043 A2 the sections have the same composition. In some cases, the sections have different compositions. In some cases, the assembly comprises at least two heating elements which are arranged to heat respectively different sections of the aerosolizable material.
    Another aspect of the invention provides a method for generating an aerosol comprising heating, in an aerosol generating assembly, an aerosolizable material, in which the aerosolizable material comprises a tobacco material, an aroma not encapsulated and an encapsulated aroma.
    In some cases, the aerosol generating material comprises at least two sections, and in which a different thermal profile is provided to each section of the aerosolizable material. In some cases, the sections have different compositions.
    Other features and advantages of the invention will be highlighted by the following description of examples of the invention, given by way of example only, which is made with reference to the accompanying drawings.
    Fig. 1 is a schematic view of an aerosolizable material intended for use in an aerosol generating assembly.
    Fig. 2 is a schematic view of an aerosol generating article comprising an aerosolizable material for use in an aerosol generating assembly.
    Fig. 3 shows a sectional view of an example of an aerosol generating article.
    Fig. 4 shows a perspective view of the article of FIG. 3.
    Fig. 5 shows a sectional elevation view of an example of an aerosol generating article.
    Fig. 6 shows a perspective view of the article of FIG. 5.
    Fig. 7 shows a perspective view of an example of an aerosol generating article.
    Fig. 8 shows a sectional view of an example of an aerosol generating article.
    Fig. 9 shows a perspective view of an example of an aerosol generating article.
    Fig. 10a shows a flavor release profile for an example of an aerosol generating article according to the invention and two comparative flavor release profiles.
    Fig. 10b shows a heating profile which can be used in an aerosol generator assembly.
    Fig. 10c shows a flavor release profile for two examples of aerosol generating articles according to the invention and a comparative flavor release profile.
    Examples of the invention provide an aerosolizable material usable in an aerosol generating assembly, the aerosolizable material comprising a tobacco material, an unencapsulated aroma and an encapsulated aroma.
    The inventors have established that the flavorings contained in the heating products for tobacco can be consumed quickly at the start of the consumption experience because of their volatility. The present invention provides an aerosolizable material comprising (i) an unencapsulated flavoring agent which is volatilized at the start of the consumption period and (ii) an encapsulated flavoring agent which is released and volatilized later during the consumption period. This means that the claimed aerosolizable material can be used in a tobacco heating product and provide a sustained supply of flavorings (and a more sustained sensory effect to the consumer) and, in some cases, a relatively constant supply of flavorings per puff ( i.e. a relatively constant sensory effect).
    The encapsulation also serves to prevent the migration of the flavoring agent inside the aerosolizable material before its use.
    In some cases, the encapsulated flavoring agent is released when a threshold temperature, also called release temperature, is exceeded. In some cases, temperature-dependent release can be achieved by the use of a coating material that melts, decomposes, reacts, degrades, swells or deforms to release the aroma at release temperature. In other cases, heat can cause the encapsulated flavoring agent to swell and cause the encapsulation material to rupture.
    In some cases, the encapsulated flavoring agent may be present in the form of aromatic capsules. In some cases, the encapsulated flavoring agent may be present in the form of powder, granules and / or beads. In some cases, the encapsulated flavorant may be present in the form of an encapsulation film which can be applied, for example, to the tobacco material and / or to an envelope disposed around the tobacco material. In some cases, the encapsulated flavoring agent may be present in a mixture of these forms, as a combination of flavoring capsules and an encapsulating film.
    CH 715 043 A2 In some cases, the aerosolizable material can be configured to be used in an aerosol generating assembly in which there is more than one heating zone. The aerosolizable material can be in the form of a component which comprises sections corresponding to each heating zone, each section being subjected to a different thermal profile. In some cases, each section of the aerosolizable material may have substantially the same composition. In other cases, each section of the aerosolizable material may have a different composition. For example, the aerosolizable material can comprise two sections and the non-encapsulated flavoring agent can be placed in a different section from the encapsulated flavoring agent; a section of the aerosolizable material which is heated first during use may include the non-encapsulated flavoring agent (but not the encapsulated flavoring agent) and a section of the aerosolizable material which is secondly heated during use may include the 'encapsulated flavor (but not the non-encapsulated flavoring). In another example, both sections may include an unencapsulated flavoring agent, but only the second section may include an encapsulated flavoring agent. The inventors have determined that encapsulating the flavoring agent in later heated sections limits the consumption of flavoring agent in these sections caused by thermal bleeding from the earlier heated sections. In such cases, the encapsulated flavorant can be released when the release temperature is exceeded, which only occurs when the later heated section is heated; thermal bleeding from other sections is insufficient to exceed the release temperature. This configuration then contributes to providing a sustainable distribution profile for flavorings.
    In some cases, the two sections include a non-encapsulated flavoring agent, and in which only one of the two sections comprises an encapsulated flavoring agent. In some other cases, only one of the two sections comprises an unencapsulated flavoring agent, and in which only one of the two sections comprises an encapsulated flavoring agent; the non-encapsulated flavoring agent and the encapsulated flavoring agent can be supplied in the same section or in different sections. In either case, tobacco material can be provided in either or both of the two sections.
    In some cases, the aerosolizable material may contain an encapsulated flavoring agent, in which the aroma is encapsulated to ensure multimodal release of the encapsulated flavoring agent during heating. That is, the flavor release profile of the aerosolizable material includes a rejection of the non-encapsulated flavor and at least two releases of the encapsulated flavor. In some cases, the aerosolizable material may contain an encapsulated flavor, in which the aroma is encapsulated to provide bimodal release of the encapsulated flavor during heating. That is, the flavor release profile of the aerosolizable material includes one release of the non-encapsulated flavor and two releases of the encapsulated flavor. The release of the flavoring agent is staggered during use, allowing for sustained aroma distribution during the consumption experience.
    The release of multimodal flavorings (preferably bimodals) from an encapsulated flavoring can be ensured in several ways. In some cases, the release temperatures of the encapsulated flavoring agent may differ, so that the release of the flavoring agent is staggered during use (providing separate modes); the flavoring agent encapsulated with a lower release temperature is released and volatilized before the flavoring encapsulated with a higher release temperature. For example, the encapsulation material may differ to provide a multimodal flavor release profile; a first part of the encapsulated flavoring agent using an encapsulation material having a lower melting point can release the encapsulated flavoring agent before a second part which is made of an encapsulation material having a high melting point. In another example, the composition of the encapsulated flavoring agent may differ; the encapsulated material can swell with heat to break the encapsulation, and different encapsulated flavoring compositions swell at different rates, resulting in a multimodal flavoring release profile. In another example, the encapsulated flavoring agent can have a release temperature at least similar everywhere, but the ratio between the encapsulated material and the encapsulated material can differ in order to obtain a multimodal flavoring release profile; the encapsulated flavoring agent which includes a higher proportion of encapsulating material may require a longer heating period than the release temperature in order to release the flavoring agent.
    In some cases, the encapsulated flavoring agent providing a multimodal release profile may be disposed in the aerosol generating material in a non-uniform manner. For example, when the aerosol generating material has more than one section (which may correspond to different heating zones used), the respective sections may contain different proportions of the encapsulated flavoring agent which correspond to each mode of release. In some cases, the encapsulated flavoring agent providing the first mode of release may be provided in a different section of the aerosolizable material from the encapsulated flavoring agent providing the second mode of release.
    In some cases, the non-encapsulated flavoring agent can comprise menthol, be essentially made up of menthol or contain it.
    In some cases, the encapsulated flavoring agent may include menthol, be essentially made of menthol or contain it.
    The encapsulation material can be, for example, a polysaccharide or a cellulosic material; gelatin; eraser; protein material; a polyol matrix material; a gel; a wax; polyurethane; polymerized, hydrolyzed ethylene vinyl acetate, polyester, polycarbonate, polymethacrylate, polyglycol, polyethylene, polystyrene, polypropylene, polyvinyl chloride or a mixture thereof. Suitable polysaccharides include alginate, starch, dextran, maltodextrin, cyclodextrin and pectin. Cellulosic materials
    Suitable CH 715 043 A2 include methylcellulose, ethylcellulose, hydroxyefhylcellulose, hydroxypropylcellulose, carboxymethylcellulose and cellulose ethers. Suitable gums include gum arabic, ghatti gum, tragacanth gum, karaya gum, carob, acacia gum, guar, quince seeds and xanthan gum. Zein proteins are suitable proteins. Suitable polyol matrices can be formed from polyvinyl alcohol. Suitable gels are agar, agarose, carrageenans, furoidan and furcellaran. Suitable waxes include carnauba wax.
    In some cases, the encapsulation material comprises a polysaccharide. In some special cases, the coating material may include an alginate. The alginate can be, for example, an alginic acid salt, an esterified alginate or a glyceryl alginate. The salts of alginic acid include ammonium alginate, triethanolamine alginate and group I or II metal ion alginates such as sodium, potassium, calcium and magnesium alginate. Esterified alginates include propylene glycol alginate and glyceryl alginate.
    In some cases, the encapsulation material is sodium alginate and / or calcium alginate. Calcium alginate inhibits aroma migration more at room temperature than sodium alginate, but it can also release the aerosol generating agent at a higher temperature than the latter.
    In some cases, the encapsulation material includes a pectin.
    In some cases, the aerosolizable material may also contain one or more aerosol generating agents. In some cases, at least part of the aerosol generating agent can be encapsulated, possibly with the same material as the encapsulated flavoring agent.
    In some cases, the aerosolizable material is in the form of a rod-shaped component. It may further include a cape disposed around the tobacco material. One or more components of the aerosolizable material may be provided as components of the cap. As used herein, the "rod" outfit generally refers to an elongated body which can have any shape suitable for use in an aerosol generating assembly. In some cases, the stem is more or less cylindrical.
    In some cases, the aerosolizable material can be a solid material. In some cases, the aerosolizable material may contain approximately 300 to 500 mg of tobacco.
    The encapsulated flavoring agent can be manufactured by any of the methods known and widely disclosed in the art, including, by way of example only, spray drying, fluidized bed coating, in-polymerization situ, evaporation, coacervation and / or coextrusion of solvents.
    Examples of the invention also relate to an aerosol generator assembly comprising a heating device and an aerosolizable material according to the first aspect, in which the heating device is arranged to heat the aerosolizable material used to generate an aerosol.
    The aerosol generator assembly according to the examples of the invention can also be designated here as a heating device without combustion, a heating product for tobacco or a device for heating tobacco.
    Any suitable heating profile can be used. In some cases, the temperature of the heater may increase rapidly at the start of a consumption session to quickly generate an aerosol. It can then fall off after a while to prevent charring or burning of the aerosolizable material. It can then rise later during use to maximize the aerosolization of the material components.
    In some cases, the assembly is configured to provide a different thermal profile to the different sections of the aerosolizable material. In some cases, the assembly can be configured so that at least part of the aerosolizable material is exposed to a temperature of at least 180 ° C or 200 ° C for at least 50% of the heating period. In some cases, the aerosolizable material can be exposed to a heat profile as described in joint application PCT / EP 2017/068 804, the content of which is incorporated in its entirety.
    In certain special cases, an assembly is provided which is configured to heat the at least two sections of the aerosolizable material separately. By controlling the temperature of the first section and the second section over time so that the temperature profiles of the sections are different, it is possible to control the profile of the aerosol puffs during use. The heat supplied to the two parts of the aerosolizable material can be supplied at different times or at different rates; staggering the heating in this way can both speed up the production of aerosols and extend the useful life.
    In some cases, the assembly can be configured so that at the start of the consumption experience, a first heating device corresponding to a first section of the aerosolizable material is immediately heated to a volatilization temperature which performs the volatilization of aerosolizable components. After a while, the temperature of the first heater drops to an intermediate temperature, which is selected to prevent condensation of the aerosol in the first section.
    At the start of the consumption experience or after a certain time, a second heating device corresponding to a second section of the aerosolizable material is heated to an intermediate temperature (which may be the same or different from the intermediate temperature of the first heating device ). After a certain period of time, the second heating device is heated to a volatilization temperature (which may be the same or different from the temperature of
    CH 715 043 A2 volatilization of the first heating device). Generally, at least one of the heating elements is at its volatilization temperature for the duration of consumption and, in some cases, the two heating elements are simultaneously at their volatilization temperature for a short period of time. The intermediate temperature of the second heater is selected so that the second section can be quickly heated to its volatilization temperature.
    At the end of the consumption experience, the two heating elements are allowed to cool to room temperature.
    In a particular example, the assembly can be configured so that at the start of the consumption experience, a first heating device corresponding to a first section of the aerosolizable material is immediately heated to a temperature of 240 ° C. . This first heating device is maintained at 240 ° C for 145 seconds, then drops to 135 ° C (where it remains for the rest of the consumption experience). 75 seconds after the start of the consumption experience, a second heating device corresponding to a second section of the aerosolizable material is heated to a temperature of 160 ° C. 135 seconds after the start of the consumption experience, the temperature of the second heating device is brought to 240 ° C (where it remains for the rest of the consumption experience). The consumption experience lasts 280 seconds, after which the two heaters are cooled to room temperature.
    In some cases, there are two sections in the aerosolizable material. In other cases, there may be 3, 4, 5, 6 or more sections. The composition of the aerosolizable material in each section can be the same or different. There may be a non-encapsulated flavoring agent in a number of sections. There may be a flavoring agent encapsulated in a number of sections. In some cases, the flavoring agent can be encapsulated to provide an multimodal release encapsulating flavoring agent upon heating, and the aerosolizable material can be configured such that each mode is provided by a different section of the aerosolizable material. In some cases, the sections of an aerosolizable material may include an encapsulated flavoring agent which provides an encapsulated flavoring agent with multimodal release upon heating, in which the proportion of encapsulated flavoring agent contributing to each release mode varies between the respective sections. In some cases, the assembly includes a plurality of heating elements, arranged such that each directly heats one or more sections of the aerosolizable material. In some cases, the number of heating elements is equivalent to the number of sections in the aerosolizable material, and the heating elements are arranged so that each section heats a section.
    In some cases, the aerosolizable material has the shape of a rod, like a cylinder. In some cases, the sections of the aerosolizable material may be cylindrical and arranged coaxially along the rod of the aerosolizable material. In other cases, the sections of the aerosolizable material may be in the form of prismatic sections which are arranged to form together a rod such as a cylinder. For example, in the case where there are two sections, they can be semi-cylindrical and arranged with their respective flat faces in contact.
    In some cases, the aerosolizable material can be provided as part of an aerosol generating article which is inserted into the aerosol generating assembly. In some cases, the aerosol generating article may include the aerosolizable material and in addition a cooling element and / or a filter. The cooling element, if present, can act or function to cool gaseous or aerosol components. In some cases, it can act to cool the gaseous components so that they condense to form an aerosol. It can also act to space out very hot parts of the user's device. The filter, if present, can include any suitable filter known in the art such as a cellulose acetate plug. In some cases, the filter does not contain encapsulated flavoring. The aerosol generating article may be contained by a packaging material such as paper.
    The aerosol generating article may also include ventilation openings. These can be provided in the side wall of the article. In some cases, ventilation openings may be provided in the filter and / or the cooling element. These openings can allow cold air to be drawn into the article during use, which can mix with heated volatilized components and cool the aerosol.
    Ventilation improves the generation of volatilized heated components visible from the article when it is heated during use. The heated volatilized components are made visible by the refrigeration process of the heated volatilized components such that supersaturation of the heated volatilized components occurs. The heated volatilized components then undergo droplet formation, called nucleation, and the aerosol particle size of the heated volatilized components eventually increases by condensation of the heated volatilized components and by coagulation of the droplets newly formed by the heated volatilized components.
    In some cases, the ratio of cold air to the sum of heated volatilized components and cold air, called ventilation ratio, is at least 15%. A ventilation rate of 15% makes it possible to make visible the volatilized components heated by the method described above. The visibility of the heated volatilized components allows the user to identify that the volatilized components have been generated and adds to the sensory experience of the smoking experience.
    In another example, the ventilation rate is between 50% and 85% to provide additional cooling to the heated volatilized components. In some cases, the ventilation rate can be at least 60% or 65%.
    CH 715 043 A2 As used herein, an "aerosol generating agent" is an agent which promotes the generation of an aerosol during heating. An aerosol generating agent can promote the production of an aerosol by promoting initial vaporization and / or condensation of a gas into a solid and / or inhalable liquid aerosol. Suitable aerosol generating agents include, but are not limited to: suitable aerosol generating agents include, but are not limited to: a polyol such as sorbitol, glycerol and glycols such as propylene glycol or triethylene glycol; a non-polyol such as monohydric alcohols, high-boiling hydrocarbons, acids such as lactic acid, glycerol derivatives, esters such as diacetin, triacetin, triethylene glycol diacetate, diacetate triethylene glycol, triethyl citrate or myristate including ethyl myristate and isopropyl myristate and aliphatic esters of the methyl stearate type, dimethyl dodecanedioate and dimethyl tetradecanetioate.
    In this document, the “aroma” and “flavoring” outfits denote materials which, when local regulations allow, can be used to create a desired taste or aroma in a product intended for adult consumers. They may include extracts (e.g., licorice, hydrangea, Japanese white bark, magnolia leaf, chamomile, fenugreek, cloves, menthol, Japanese mint, anise, cinnamon, herb, wintergreen, cherry, berry, peach, apple , Drambuie, bourbon, scotch, whiskey, sweet mint, peppermint, lavender, cardamom, celery, cascilla, nutmeg, sandalwood, bergamot, geranium, honey, rose oil, vanilla, lemon oil, orange oil, breakage , cumin, cognac, jasmine, ylang-ylang, sage, fennel, chilli, ginger, anise, anise, coriander, coffee or a mint oil of all kinds of the genus Mentha), flavor enhancers, receptor blocking agents bitterness, stimulators of sensory receptors, activators of sense sites, sugars and / or sugar substitutes (eg, sucralose, acesulfame potassium, aspartame, saccharin, cyclamates, lactose, sucrose, glucose, fructose, sorbitol or mannitol), and other additives such as charcoal, chlorophyll, minerals, plants or breath fresheners.
    It can be imitations, synthetic or natural ingredients or mixtures thereof. They can be in any suitable form, for example, oil, liquid or powder. In some cases, the activator or stimulator of the sensory receptor site is a sensory state, such as a refrigerant. Suitable refrigerants may include one or more compounds selected from the group consisting of: N-ethyl-2-isopropyl-2-isopropyl-5-methylcyclohexane-carboxamide (also known as WS-3, CAS: 39711-79 -0, FEMA: 3455); 2-isopropyl-N - [(ethoxycarbonyl) methyl] -5-methylcyclohexanecarboxamide (also known as WS-5, CAS: 68489-14-5, FEMA: 4309); 2-isopropyl-N- (4-methoxylphenyl) -5-methylcyclohexanecarboxamide (also known as WS-12, FEMA: 4681); and 2-isopropyl-N, 2,3-trimethylbutanamide (also known as WS-23, FEMA: 3804). 3804).
    In this document, the term "tobacco material" means any material containing tobacco or derivatives thereof. The term "tobacco material" may include one or more of the following products: tobacco, tobacco derivatives, expanded tobacco, reconstituted tobacco or tobacco substitutes. The tobacco material may include one or more of the following: cut tobacco, tobacco fiber, cut tobacco, extruded tobacco, stem tobacco, reconstituted tobacco and / or tobacco extract.
    The tobacco used to produce tobacco material can be any suitable tobacco, such as simple or blended quality tobacco, cut rags or whole leaves, including Virginia and / or Burley and / or Oriental . It can also be "fine" particles or tobacco dust, expanded tobacco, stems, stems, expanded stems and other processed stem materials, such as cut rolled stems. The tobacco material can be chopped tobacco or reconstituted tobacco. The reconstituted tobacco material can include tobacco fibers and can be formed by casting, by a Fourdrinier-type paper manufacturing process with the addition of a tobacco extract on the back, or by extrusion.
    In use, in certain cases, the aerosol generating article can be placed in an aerosol generating device which heats the article to generate an aerosol without burning it. In other cases, the item may be supplied in an assembly with a fuel source, such as a fuel source or a chemical heat source, which heats but does not burn the aerosolizable material.
    In some cases, the heating device supplied in an aerosol generator assembly may be an electrically resistive thin film heating device. In other cases, the heater may consist of an induction heater or the like. When there is more than one heater, each heater can be the same or different.
    Generally, the or each heating device is connected to a battery, which can be a rechargeable battery or a non-rechargeable battery. Examples of suitable batteries include, for example, a lithium-ion battery, a nickel battery (such as a nickel-cadmium battery), an alkaline battery and / or the like. The battery is electrically coupled to the heater and can be controlled via appropriate circuits to provide the electrical energy required to heat the aerosolizable material (to volatilize the components of the aerosolizable material without causing combustion of the aerosolizable material) .
    In one example, the heater is generally in the form of a hollow cylindrical tube, with a hollow interior heating chamber into which the aerosolizable material is inserted for heating during use. Different configurations are possible for the heater. For example, the heater can
    CH 715 043 A2 consist of a single heating device or of several heating elements aligned along the longitudinal axis of the heating device. (For the sake of simplicity, the reference to a "heating device" should be considered to include several heating elements, unless the context requires otherwise). The heating device can be annular or tubular. The heating device can be dimensioned so that almost all of the aerosolizable material when inserted is inside the heating element (s) of the heating device so that almost all of the aerosolizable material is heated during the 'use. The heating device can be arranged so that selected areas of the aerosolizable material can be heated independently, for example in turn (sequentially) or together (simultaneously) as required.
    The heating device can be surrounded over at least part of its length by a thermal insulator which helps to reduce the passage of heat from the heater to the outside of the aerosol generator assembly. This helps reduce the energy requirements for heating, as it reduces heat loss in general. The insulation also helps keep the outside of the aerosol generator assembly cool while the heater is in operation.
    Insofar as they are compatible, the characteristics described in relation to one aspect of the invention are explicitly disclosed in combination with the other aspects and examples described here.
    FIG. 1 schematically illustrates an example of an aerosolizable material for use with an aerosol generating assembly. The aerosolizable material is in the form of a cylindrical rod and comprises a first section 103a and a second section 103b. The second section 103b is, in this example, further from the mouth used than the first section 103a.
    In some examples, the two sections 103a and 103b of the aerosolizable material have substantially the same composition. They include a tobacco material, an unencapsulated flavoring agent and an encapsulated flavoring agent. The flavoring agent can be menthol. The encapsulation material may be an alginate. In some cases, the encapsulated flavoring agent may be in the form of capsules which are dispersed in the tobacco material. In other cases, the encapsulated flavoring agent may be provided in the form of a film which is applied to a cape (such as a paper cape) disposed around the tobacco material. In such cases, the film can be applied by spray drying or printing, for example. In still other cases, the encapsulated flavoring agent can be applied to the tobacco material, for example by spraying.
    In other examples, the two sections 103a and 103b of aerosolizable material have more or less the same composition. They include a tobacco material, an unencapsulated flavoring agent and an encapsulated flavoring agent which allows multimodal release of the flavoring agent from the encapsulated flavoring agent during heating. During use, the unencapsulated flavor is initially volatilized, followed by the release and volatilization of a first portion of the encapsulated flavor (which may, in some cases, be the portion with a lower release temperature ). The second part of the encapsulated flavoring agent (which can, in some cases, be the part with the highest release temperature) is released later, then volatilized, which allows a gradual release of the flavoring agent and a release sustained flavoring for the user.
    In other examples, the two sections 103a and 103b of aerosolizable material have different compositions. In some cases, both sections include an unencapsulated flavoring agent, but only one section includes an encapsulated flavoring agent. In other cases, one section includes an unencapsulated flavor but no encapsulated flavor and the other includes an encapsulated flavor but no unencapsulated flavor. In either case, either or both of sections 103a, 103b may include tobacco material. In still other cases, one section includes an unencapsulated flavoring agent and an encapsulated flavoring agent (and optionally a tobacco material) and the other section includes tobacco material but does not include any flavoring agents. In some cases, the encapsulated flavoring agent may be in the form of capsules which are dispersed through the tobacco material in a section of the aerosolizable material. In other cases, a cape (such as a paper cape) may be placed around the tobacco material and the encapsulated flavorant may be provided in the form of a film which is applied to a section of the cape which is arranged around one of the sections of the aerosolizable product 103a, 103b. In such cases, the film can be applied by spray drying or printing, for example. In still other cases, the encapsulated flavor can be applied to the tobacco material in one of sections 103a, 103b, for example by spraying.
    In such examples, the section of aerosolizable material which comprises the encapsulated flavoring agent will generally be the section which is configured to be heated later during use. In some cases, only the second section 103b (which is further from the end of the mouth) contains an encapsulated flavoring agent and is heated after the first section 103a, during use.
    In other examples, the two sections 103a and 103b of aerosolizable material have different compositions. In some cases, either or both sections include an unencapsulated flavoring agent, and each section includes an encapsulated flavoring agent. The encapsulated flavor is released from the encapsulated flavor by heating in a bimodal release profile; the encapsulated flavoring agent providing the first mode of release is provided in a different section of the aerosolizable material of the encapsulated flavoring agent providing the second mode of release. In either case, either or both of sections 103a, 103b may include tobacco material. In general, the section containing the encapsulated flavoring agent with a higher release temperature (or which is
    CH 715 043 A2 otherwise configured to allow later release) is the section that is heated later during use. For example, in one embodiment, the first section 103a includes an unencapsulated flavoring agent and a first encapsulated flavoring agent. In this embodiment, the second section 103b includes a second encapsulated flavoring agent which has a higher release temperature (or which is otherwise configured to provide subsequent release) than the first encapsulated flavoring agent. In use, the first section 103a is heated first and the non-encapsulated flavoring agent is initially volatilized, followed by the encapsulating flavoring agent from the first section when the release temperature is reached. The second encapsulated flavoring agent is not volatilized at this stage because it has a higher release temperature (or is configured to provide later release); during the heating of the second section 103b, the second encapsulated flavoring agent is released and volatilized to form an aerosol.
    In yet another variant, the two sections 103a and 103b of the aerosolizable material have different compositions. In some cases, either of the two sections includes an unencapsulated flavoring agent, and each section includes an encapsulated flavoring agent. The encapsulated flavor is released from the encapsulated flavor by heating in a bimodal release profile; the respective sections of the aerosol generating material comprise different proportions of the encapsulated flavoring agent which contribute to each of the release modes. For example, a first section of aerosolizable material includes a greater proportion of the encapsulated flavoring agent providing the first mode of release and a second section of aerosolizable material comprises a greater proportion of the encapsulated flavoring agent providing the second mode of release. In either case, either or both of sections 103a, 103b may include tobacco material. In general, the section containing a larger proportion of the encapsulated flavoring agent providing the second release mode will be heated second during use. In some cases, the second section may be section 103b disposed further from the mouth during use.
    FIG. 2 schematically illustrates an example of an aerosol generating article 101 for use with an aerosol generating assembly. The aerosol generating article 101 includes the cylindrical rod of aerosolizable material 103 shown in FIG. 1, a cooling element 107, a filter 109 and a buccal end segment 111. The cooling element 107 and the filter 109, as illustrated, can be arranged between the buccal end of the aerosolizable material 103 and the end segment buccal 111, so that the flow of aerosolizable material 103 passes through the cooling element 107 and the filter 109 (or vice versa if the filter is placed before the cooling element in the flow) before the user can to receive. Although the example in fig. 2 illustrates a cooling element 107, a filter 109 and a buccal end segment 111, one or more of these elements can be omitted in other examples.
    In certain examples, the buccal end segment, if present, may consist for example of paper, for example in the form of a paper tube wound in a spiral, of cellulose acetate, of cardboard , corrugated paper, such as heat resistant corrugated paper or corrugated parchment paper, and / or polymeric materials, such as low density polyethylene (LDPE) or any other suitable material. The buccal end segment 111 may include a hollow tube. Such a hollow tube can provide a filtration function for filtering volatile aerosolizable materials. The buccal end segment 111 can be extended so as to be spaced from the very hot part or parts of the main apparatus (not shown) which heat the aerosolizable material.
    In some examples, the filter 109, if present, can be a filter plug and can be made, for example, from cellulose acetate.
    In some cases, the cooling element 107, if present, may include a monolithic rod having first and second ends and comprising several through holes extending between the first and second ends. The through holes can extend substantially parallel to the central longitudinal axis of the rod. The through holes of the cooling element 107 can be arranged in general radially with respect to the element when viewed in lateral cross section. That is, in one example, the element has internal walls which define the through holes and which have two main configurations, namely radial walls and central walls. The radial walls extend along the radii of the cross section of the element and the central walls are centered on the center of the cross section of the element. The central walls in one example are circular, although other regular or irregular cross-sectional shapes can be used. The central walls in one example are circular, although other regular or irregular cross-sectional shapes can be used.
    In one example, the majority of the through holes have a hexagonal or generally hexagonal section. In this example, the element presents what you might call a honeycomb structure when viewed from one side. In some cases, the refrigerating element 107 may include a hollow tube which separates the filter 109, if present, from the very hot part or parts of the main device which heats the aerosolizable material. The refrigerating element 107 may consist, for example, of paper, for example in the form of a tube of spirally wound paper, of cellulose acetate, of cardboard, of corrugated paper, such as heat-resistant corrugated paper or corrugated parchment paper, and polymeric materials, such as low density polyethylene (LDPE), or other suitable material.
    The refrigerating element 107, if present, can be practically incompressible. It can be formed from a ceramic material or a polymer, for example a thermoplastic polymer, which can be an extrudable plastic. In one example, the porosity of the element is in the range of 60% to 75%. Porosity in this sense can be a measure
    CH 715 043 A2 of the percentage of the area of the lateral cross section of the element occupied by the through holes. In one example, the porosity of the element is in the range of 69% to 70%.
    Other examples of refrigerating elements are presented in document PCT / GB 2015/051 253, the entirety of which is expressly incorporated by reference, in particular in FIGS. 1 to 8 and in the description on page 8, line 11a page 18, Line 16.
    In other examples, the cooling element 107 can be formed from a folded, crimped or pleated sheet material to form through holes. The sheet material can be made, for example, from metal such as aluminum, from polymeric plastic such as polyethylene, polypropylene, polyethylene terephthalate or polyvinyl chloride, or from paper.
    In some examples, the cooling element 107 and the filter 109 can be held together by wrapping paper (not shown) to form an assembly. The assembly can then be connected to the aerosolizable material by another envelope (not shown) which circumscribes the assembly and at least the buccal end of the aerosolizable material to form the aerosol generating article 101. In other examples, the aerosol generating article 101 is formed by effectively enveloping the cooling element 107, the filter 109 and the aerosolizable material 103 in a single operation, without a separate liner being provided for the cooling element and / or filter components (if applicable). Referring now to FIGS. 3 and 4, there is a partial sectional view and a perspective view of an example of an article generating an aerosol 201. Article 201 is suitable for use with an apparatus having a power source and a device heating. Article 201 of this embodiment is particularly suitable for the use of the device 1 shown in FIGS. 7 to 9, described below. During use, article 201 can be removably inserted into the device shown in fig. 7 at an insertion point 20 of the device 1. The reference signs indicated in fig. 3 and 4 are equivalent to the reference signs indicated in figs. 1 and 2, but with an increment of 100.
    Article 201 of an example is in the form of a substantially cylindrical rod which comprises an aerosolizable material 203 and a filter assembly 205 in the form of a rod. The aerosolizable material has two sections 203a, 203b; the above description of sections 103a, 103b of Figs. 1 and 2 also applies to sections 203a, 203b of Figs. 3 and 4.
    The filter assembly 205 comprises three segments, a refrigerant segment 207, a filter segment 209 and a buccal end segment 211. The article 201 has a first end 213, also called the buccal end or proximal end, and a second end 215, also called the distal end. The aerosolizable material 203 is located towards the distal end 215 of article 201. In one example, the refrigerant segment 207 is located next to the aerosolizable material 203 between the aerosolizable material 203 and the filter segment 209, so that the refrigerant segment 207 is in adjacent relation with the aerosolizable material 203 and the filter segment 209. In other examples, there may be a separation between the aerosolizable material 203 and the refrigerant segment 207 and between the aerosolizable material 203 and the segment filter 209. The filter segment 209 is located between the refrigerant segment 207 and the buccal end segment 211. The buccal end segment 211 is located towards the proximal end 213 of the article 201, next to the segment filter 209. In one example, the filter segment 209 is in contiguous relationship with the buccal end segment 211. In one embodiment, the total length the of the filter assembly 205 is between 37 mm and 45 mm, or 41 mm.
    In some examples, the aerosolizable material 203 has a length between 30 mm and 54 mm and an appropriate length between 36 mm and 48 mm. In one example, the total length of the article 201 is between 71 mm and 95 mm, preferably between 79 mm and 87 mm, preferably around 83 mm.
    An axial end of the aerosolizable material 203 is visible at the distal end 215 of article 201. However, in other cases, the distal end 215 of article 201 may comprise an end element ( not shown) covering the axial end of the aerosolizable material 203.
    The aerosolizable material 203 is connected to the filter assembly 205 by annular lining paper (not shown), which is located substantially around the circumference of the filter assembly 205 to surround the filter assembly 205 and extends at least partially along the length of the aerosolizable material 203. In one example, the liner paper is made from standard liner base paper 58GSM. In one example, the trim paper has a length between 42 mm and 50 mm, or approximately 46 mm.
    In some cases, the same lining paper can be used to connect the sections 203a, 203b of the aerosolizable material 203 and the filter assembly 205.
    In one example, the refrigerant segment 207 is an annular tube which is located around the refrigerant segment and defines an air gap inside it. The air gap provides a chamber for the flow of heated volatilized components generated from the aerosolizable material 203. The refrigerant segment 207 is hollow to provide an aerosol accumulation chamber, but rigid enough to withstand the axial compression forces and at the bending moments which may occur during the manufacture and during the use of the article 201, during the introduction into the device 1. In one example, the thickness of the wall of the refrigerating segment 207 is approximately 0 , 29 mm.
    CH 715 043 A2 The refrigerant segment 207 ensures a physical displacement between the aerosolizable material 203 and the filter segment 209. The physical displacement provided by the refrigerant segment 207 will provide a thermal gradient over the entire length of the refrigerant segment 207. In one example, the refrigerant segment 207 is configured to provide a temperature difference of at least 40 degrees Celsius between a heated volatilized component entering a first end of the refrigerant segment 207 and a heated volatilized component leaving a second end of the refrigerant segment 207 In one example, the refrigerant segment 207 is configured to provide a temperature difference of at least 60 degrees Celsius between a heated volatilized component entering a first end of the refrigerant segment 207 and a heated volatilized component exiting through a second end of the segment refrigerant 207. This temperature difference over the entire length of the cooling element 207 protects the heat-sensitive filter segment 209 from high temperatures of the aerosolizable material 203 when it is heated by the heater of the appliance 1. If the physical movement was not not provided between the filter segment 209 and the aerosolizable material 203 and the heating elements of the device 1, the temperature-sensitive filter segment 209 could be damaged during use, so that it would not perform its required functions as effectively.
    In one example, the length of the refrigerant segment 207 is at least 15 mm. In one example, the length of the refrigerating segment 207 is between 20 mm and 30 mm, suitably 23 mm to 27 mm or 25 mm to 27 mm, most suitably around 25 mm.
    The refrigerant segment 207 may be made of paper, which means that it comprises a material which does not generate compounds of concern, for example toxic compounds when it is used near the heating device of the device 1. By For example, the refrigerant segment 207 is manufactured from a spiral-wound paper tube which provides a hollow internal chamber while maintaining mechanical rigidity. Spiral wound paper tubes are capable of meeting the dimensional accuracy requirements of high speed tube manufacturing processes in terms of length, outside diameter, roundness and straightness of the tubes.
    In another example, the refrigerant segment 207 is a recess created from a rigid wrapping paper or liner. Wrapping or wrapping paper is manufactured to have sufficient rigidity to withstand the axial compression forces and bending moments that may occur during manufacture and during use of article 201 when introduced into the device 1.
    The filter segment 209 can be made of any filter material sufficient to remove one or more volatilized compounds from the heated volatilized components of the aerosolizable material. In one example, the filter segment 209 is made of a monoacetate material, such as cellulose acetate. The filter segment 209 makes it possible to cool and reduce the irritation of the heated volatilized components without reducing the quantity of the heated volatilized components to a level unsatisfactory for a user.
    The density of the cellulose acetate wick material of the filter segment 209 controls the pressure drop across the filter segment 209, which in turn controls the stretch resistance of item 1. C ' this is why the choice of the material of the filter segment 209 is important for controlling the resistance to stretching of article 201. Furthermore, the filter segment fulfills a filtration function in article 201.
    In one example, the filter segment 209 is made of a quality material 8Y15, which provides a filtration effect on the heated volatilized material, while reducing the size of the condensed aerosol droplets which result from the volatilized material. heated, which reduces irritation and impact of the heated volatilized material on the throat satisfactorily.
    The presence of the filter segment 209 provides an insulating effect by further cooling the heated volatilized components which exit from the cooling segment 207. This additional cooling effect reduces the contact temperature of the lips of the user in contact with the surface of the segment filter 209.
    One or more flavors can be added to the filter segment 209 in the form of either a direct injection of flavored liquids into the filter segment 209, or the coating or the arrangement of one or more capsules or other breakable aroma carriers flavored in the cellulose acetate wick of filter segment 209.
    In one example, the filter segment 209 has a length of between 6 mm and 10 mm, or approximately 8 mm.
    The buccal end segment 211 is an annular tube located around the buccal end end segment 211 and defines an air gap therein. The air gap provides a chamber for the heated volatilized components which flow from the filter segment 209. The mouth end segment 211 is hollow to allow the accumulation of aerosols, but rigid enough to withstand the axial compression forces and at the bending moments that may occur during the manufacture and use of the article when it is inserted into the device 1. In one example, the thickness of the wall of the end segment of the mouth 211 is approximately 0.29 mm.
    In one example, the length of the buccal end segment 211 is between 6 and 10 mm and is preferably about 8 mm.
    The buccal end segment 211 can be fabricated from a spirally wound paper tube which provides a hollow internal chamber while maintaining critical mechanical rigidity. Spiral wound paper tubes
    CH 715 043 A2 are capable of meeting the dimensional precision requirements of high speed tube manufacturing processes in terms of length, outside diameter, roundness and straightness of the tubes.
    The function of the buccal end segment 211 is to prevent any liquid condensate which accumulates at the outlet of the filter segment 209 from coming into direct contact with a user.
    It should be noted that, in one example, the buccal end segment 211 and the refrigerant segment 207 may consist of a single tube and that the filter segment 209 is located inside this separating tube. the buccal end segment 211 and the refrigerant segment 207.
    Referring now to Figs. 5 and 6, there is a partially cut section and perspective views of an example of an article 301 according to an embodiment of the invention. The reference signs indicated in fig. 5 and 6 are equivalent to the reference signs indicated in figs. 3 and 4, but with an increment of 100.
    In the example of article 301 illustrated in FIGS. 5 and 6, a ventilation zone 317 is provided in article 301 to allow air to enter the interior of article 301 from outside of article 301. In one example, the ventilation zone ventilation 317 takes the form of one or more ventilation holes 317 formed through the outer layer of article 301. The ventilation holes can be located in the cooling segment 307 to facilitate the cooling of article 301. In a example, ventilation area 317 includes one or more rows of holes and, in some cases, each row of holes is arranged circumferentially around article 301 in a cross section which is more or less perpendicular to a longitudinal axis of the section 301.
    In an example, there are between one and four rows of ventilation holes to ensure the ventilation of the article 301. Each row of ventilation holes can have between 12 and 36 ventilation holes 317. The ventilation holes 317 can, for example, have a diameter of 100 to 500 jam. In one example, an axial separation between the rows of ventilation holes 317 is between 0.25 mm and 0.75 mm, which corresponds to 0.5 mm.
    In one example, the ventilation holes 317 are of uniform size. In another example, the ventilation holes 317 vary in size. The ventilation holes can be made by any suitable technique, for example, one or more of the following techniques: laser technology, mechanical perforation of the refrigerating segment 307 or pre-perforation of the refrigerating segment 307 before its transformation into article 301. The ventilation holes 317 are positioned so as to ensure effective cooling of the article 301.
    In one example, the rows of ventilation holes 317 are located at least 11 mm from the proximal end 313 of the article, suitably between 17 mm and 20 mm from the proximal end 313 of article 301 The location of the ventilation holes 317 is positioned so that the user does not block the ventilation holes 317 during the use of article 301.
    Providing the rows of ventilation holes between 17 mm and 20 mm from the proximal end 313 of article 301 makes it possible to place the ventilation holes 317 outside the device 1, when the article 301 is completely introduced into the apparatus 1, as can be seen in FIGS. 8 and 9. By locating the ventilation holes on the outside of the device, unheated air can enter article 301 through the ventilation holes on the outside of the device 1 to facilitate cooling. of section 301.
    The length of the refrigerating segment 307 is such that the refrigerating segment 307 will be partially introduced into the apparatus 1, when the article 301 is completely introduced into the apparatus 1. The length of the refrigerating segment 307 provides a first consistent function creating a physical space between the heater of the appliance 1 and the thermosensitive filtering device 309, and a second function consisting in allowing the ventilation holes 317 to be located in the refrigerating segment, while also being located in outside the appliance 1, when the article 301 is fully inserted in the appliance 1. As shown in FIGS. 8 and 9, the major part of the cooling element 307 is located in the appliance 1. However, it there is a part of the refrigerating element 307 which leaves the apparatus 1. It is in this part of the refrigerating element 307 which leaves the apparatus 1 in which there are ventilation holes 317.
    Referring now in more detail to FIGS. 7 to 9, there is an example of a device 1 arranged to heat an aerosolizable material in order to volatilize at least one component of said aerosolizable material, generally to form an aerosol which can be inhaled. The device 1 is a heating device 1 which releases compounds by heating, but not by burning, the aerosolizable material.
    A first end 3 is sometimes called here mouth or proximal end 3 of the device 1 and a second end 5 is sometimes called here distal end 5 of the device 1. The device 1 has an on / off button 7 to allow the user to turn on and off the device 1 as a whole as desired.
    The device 1 comprises a housing 9 for locating and protecting the various internal components of the device 1. In the example shown, the housing 9 comprises a unibody sleeve 11 which surrounds the perimeter of the device 1, topped with a upper panel 17 which generally defines the "top" of the device 1 and a lower panel 19 which generally defines the "bottom" of the device 1. In another example, the housing comprises a front panel, a rear panel and two opposite side panels in plus top panel 17 and bottom panel 19.
    The upper panel 17 and / or the lower panel 19 can be removably attached to the one-piece sleeve 11, to allow easy access to the interior of the device 1, or can be fixed "permanently" to the
    CH 715 043 A2 one-piece sleeve 11, for example to prevent a user from accessing the interior of the device 1. For example, the panels 17 and 19 are made of a plastic material, for example glass-filled nylon formed by injection molding, and the one-piece sleeve 11 is made of aluminum, although other materials and manufacturing methods can be used.
    The upper panel 17 of the device 1 has an opening 20 at the mouth end 3 of the device 1 through which, during use, the article 201, 301, including the aerosolizable material, can be inserted into device 1 and removed from device 1 by a user.
    The housing 9 includes an arrangement of heating elements 23, a control circuit 25 and a power source 27. In this example, the arrangement of heating elements 23, the control circuit 25 and the source d the power supply 27 are laterally adjacent (that is to say adjacent when viewed from one end), the control circuit 25 generally being located between the arrangement of heating elements 23 and the power source 27, but other locations are possible.
    The control circuit 25 may include a control device, such as a microprocessor device, configured and arranged to control the heating of the aerosolizable material in the consumable article 201.301 as indicated below.
    The power source 27 can be for example a battery, which can be a rechargeable battery or a non-rechargeable battery. Examples of suitable batteries include, for example, a lithium-ion battery, a nickel battery (such as a nickel-cadmium battery), an alkaline battery and / or the like. The battery 27 is electrically coupled to the arrangement of heating elements 23 to provide the necessary electrical energy and under the control of the control circuit 25 to heat the aerosolizable material in the article (to volatilize the aerosolizable material without causing combustion aerosolizable material).
    The advantage of placing the power source 27 laterally next to the arrangement of heating elements 23 is that a physically important power source 25 can be used without excessively lengthening the device 1. As will be understood, in general, a large physical energy source has a higher capacity (i.e. the total electrical energy which can be supplied, often measured in ampere hours or equivalent) and therefore the lifetime of the battery of the device 1 can be longer.
    In one example, the arrangement of heating elements 23 is generally in the form of a hollow cylindrical tube, with a hollow internal heating chamber 29 into which the article 201, 301 comprising the aerosolizable material is introduced. heating during use. Different configurations are possible for the arrangement of heating elements 23. For example, the arrangement of heating elements 23 may comprise a single heating element or may be formed by several heating elements aligned along the longitudinal axis of the arrangement of heating elements 23. The or each heating device may be annular or tubular, or at least partially annular or partially tubular around its circumference. In one example, the or each heating element may be a thin film heating device. In another example, the or each heating device can be made of a ceramic material. Examples of suitable ceramic materials are aluminum alumina and nitride and silicon nitride ceramics, which can be laminated and sintered. Other heating arrangements are possible, such as inductive heating, infrared heating elements, which heat by emitting infrared radiation, or resistive heating elements formed by a resistive electrical winding, for example.
    In a particular example, the arrangement of heating elements 23 is supported by a support tube made of stainless steel and comprises a heating element made of polyimide. The arrangement of heating elements 23 is dimensioned such that almost all of the aerosolizable material 203, 303 of article 201, 301 is introduced into the arrangement of heating elements 23 when article 201.301 is introduced into device 1.
    The or each heating device can be arranged so that sections 103a, 103b of the aerosolizable material can be heated independently, for example in turn (sequentially) or together (simultaneously) as required.
    In this example, the arrangement of heating elements 23 is surrounded over at least part of its length by a thermal insulator 31. The insulator 31 helps to reduce the passage of heat from the arrangement of elements heaters 23 to the outside of the apparatus 1. This reduces the energy requirements of the arrangement of heating elements 23, as this reduces heat loss in general. The insulator 31 also makes it possible to keep the outside of the appliance 1 cool during the operation of the arrangement of heating elements 23. In one example, the insulator 31 can be a double-walled sleeve which provides an area low pressure between the two walls of the sleeve. That is to say that the insulator 31 can be for example a tube "under vacuum", that is to say a tube which has been at least partially evacuated in order to minimize the transfer of heat by conduction and / or convection. Other arrangements for the insulator 31 are possible, including the use of thermal insulation materials, including for example a suitable foam type material, in addition to or in place of a double-walled sleeve.
    The housing 9 can also include various internal support structures to support all the internal components, as well as the arrangement of heating elements 23.
    CH 715 043 A2 [0129] The device 1 also consists of a flange 33 which extends from the opening 20 towards the inside of the housing 9 and of a generally tabular chamber 35 which is located between the flange 33 and one end of the vacuum bag 31. The chamber 35 further comprises a refrigerating structure 35f which, in this example, comprises a plurality of refrigerating fins 35f spaced apart along the external surface of the chamber 35, and each arranged at the circumference of the outer surface of the chamber 35. There is an air gap 36 between the hollow chamber 35 and the article 201, 301 when it is inserted into the device 1 over at least part of the length of the hollow chamber 35. The air gap 36 is located around the entire circumference of article 201.301 on at least part of the refrigerating segment 307.
    The flange 33 includes a plurality of ridges 60 arranged at the circumference of the periphery of the opening 20 and which protrude into the opening 20. The ridges 60 occupy space inside the opening 20 such that the open range of the opening 20 at the locations of the ridges 60 is less than the open range of the opening 20 at the locations without the ridges 60. The ridges 60 are configured to engage with an article 201,301 inserted in the device to help fix it in device 1. The open spaces (not shown in the figures) defined by the adjacent pairs of ridges 60 and article 201.301 form ventilation channels around the outside of the 201,301. These ventilation channels 1 allow the hot vapors which have escaped from article 201.301 to leave the device 1 and allow the refrigerant air to circulate in the device 1 around the article 201.301 in the air gap 36.
    [0131] During use, the article 201.301 is removably introduced into an insertion point 20 of the device 1, as shown in figs. 7 to 9. With particular reference to fig. 8, in one example, the aerosolizable material 203, 303, which is located towards the distal end 215, 315 of article 201, 301, is entirely received in the arrangement of heating elements 23 of the device 1. The proximal end 213, 313 of article 201.301 extends from device 1 and acts as a buccal end assembly for the user.
    During use, the arrangement of heating elements 23 heats the consumable article 201.301 to volatilize at least one component of the aerosolizable material from the aerosolizable material 203, 303.
    The primary flow path for the volatilized heated components of the aerosolizable material 203, 303 is axially through the article 201.301, through the chamber inside the refrigerant segment 207, 307, through the filter segment 209, 309, through the buccal end segment 211,313 to the user. In one example, the temperature of the heated volatilized components that are generated from the aerosolizable material is between 60 ° C and 250 ° C, which may be higher than the inhalation temperature acceptable to a user. When the heated volatilized component crosses the refrigerant segment 207, 307, it cools and some volatilized components condense on the internal surface of the refrigerant segment 207, 307.
    In the examples of article 301 illustrated in FIGS. 5 and 6, the fresh air can enter the cooling segment 307 through the ventilation holes 317 formed in the cooling segment 307. This fresh air mixes with the heated volatilized components to provide additional cooling to the heated volatilized components.
    [0135] Figs. 10a and 10b illustrate the sustained aroma provided by the invention. In fig. 10a, the supply of flavorings per puff is provided for three different aerosol generating sets:
    - In example A (comparative example), the aerosol generating article is a homogeneous rod containing only non-encapsulated aroma. The entire item is heated simultaneously.
    In example B (comparative example), the aerosol generating article is a homogeneous rod containing only one non-encapsulated flavoring agent. However, unlike example A, the rod has two parts which are heated independently of one another according to the thermal profile illustrated in fig. 10b (and illustrated in more detail in the pending PCT / EP application 2017/068 804).
    - In example C (example of the invention), the aerosol generating article comprises (i) a first part which contains only one non-encapsulated flavoring agent and (ii) a second part which contains an encapsulated flavoring agent and not encapsulated. The first part is arranged so as to be heated by "the heating element 1" in fig. 10b and the second part is arranged so as to be heated by "the heating element 2".
    As can be seen, the invention makes it possible to obtain a sustained diffusion of the aromas over a greater number of puffs.
    In another example, the aerosol generating article comprises a homogeneous rod of aerosol generating material, containing a tobacco material, an unencapsulated flavoring agent and an encapsulating flavoring agent. The rod has two parts which are heated independently according to the thermal profile illustrated in FIG. 10b (and illustrated in more detail in the pending PCT / EP application 2017/068 804).
    [0138] FIG. 10c illustrates the flavor release profile of two of these stems (i.e. a homogeneous aerosol generating material, containing tobacco, a non-encapsulated flavor and an encapsulated flavor), and a comparative stem without encapsulated flavor . The heat profile of fig. 10b is superimposed for easy reference:
    - In the comparative example, the non-encapsulated flavoring agent is volatilized from section 1 of the stem during the first two puffs, then a reduction in the distribution is observed. The unencapsulated flavoring agent from section 2 is released as this section is heated, with a peak flow rate around puff 4, then
    CH 715 043 A2 flavoring flow rate decreases during the rest of the heating period. From the consumer's point of view, this puff profile can lead to sensory loss of aroma in the initial phase of the puff profile.
    - In the stems which are examples of the invention (labeled Example 1 and Example 2), it can be seen that the distribution of the flavorings is staggered and more sustained - there is a greater distribution of the flavorings later in the session of consummation. It is believed that the encapsulated flavoring agent from the first section is released around puff 3; compared to the comparative example, it can be seen that the drop in the release of the flavoring on puff 3 is improved (or eliminated in the case of example 2). It is also believed that the flavoring agent encapsulated in section 2 is released when this section reaches its maximum temperature, which leads to the observed increase in the supply of flavoring agents to the puff 7. Tests carried out on consumers have shown a more sustained sensory effect of the aroma for the sticks of Example 1 and of Example 2 compared to those of the comparative example.
    - In this specific example, the flavoring agent was menthol and the sensory effect assessed was cooling.
    Thus, the invention ensures sustained distribution of the flavoring agent. The invention also provides a sustained sensory effect from this flavoring agent. In the case where the flavoring agent comprises menthol, the invention makes it possible to obtain a sustained release of menthol and a sustained cooling effect.
    The above examples should be considered as illustrative examples of the invention. It is understood that any characteristic described in connection with an example may be used alone or in combination with other characteristics described, and may also be used in combination with one or more characteristics of any other example, or with a combination of any other characteristic of these examples. In addition, equivalents and modifications not described above can also be used without departing from the scope of the invention, which is defined in the accompanying claims.
    权利要求:
    Claims (19)
    [1]
    claims
    1. Aerosolizable material usable in an aerosol generating assembly, the aerosolizable material comprising a tobacco material, a non-encapsulated flavoring agent and an encapsulated flavoring agent.
    [2]
    2. Aerosolizable material according to claim 1, in which the aerosolizable material is in the form of a component comprising at least two sections, and in which the two sections have different compositions.
    [3]
    3. The aerosolizable material according to claim 2, wherein the aerosolizable material is in the form of a component comprising two sections, in which the two sections comprise a non-encapsulated flavoring agent, and in which only one of the two sections comprises an encapsulated flavoring agent.
    [4]
    4. The aerosolizable material as claimed in claim 2, wherein the aerosolizable material is in the form of a component comprising two sections, in which only one of the two sections comprises a non-encapsulated flavoring agent, and in which only one of the two sections comprises a flavoring agent. encapsulated.
    [5]
    5. Aerosolizable material according to claim 4, wherein the aerosolizable material is in the form of a component comprising two sections, in which the non-encapsulated flavoring agent and the encapsulated flavoring agent are supplied in different sections.
    [6]
    6. The aerosolizable material of claim 4, wherein the aerosolizable material is in the form of a component comprising two sections, wherein the non-encapsulated flavoring agent and the encapsulated flavoring agent are provided in the same section.
    [7]
    7. Aerosolizable material according to any one of claims 3 to 6, wherein the tobacco material is provided in one or the other of the two sections or in both.
    [8]
    8. Aerosolizable material according to any one of the preceding claims, in which the encapsulated flavoring agent is applied to a cap placed around the tobacco material.
    [9]
    9. Aerosolizable material according to any one of the preceding claims, in which the encapsulated flavoring agent provides a multimodal flavoring release profile from the encapsulated flavoring agent during heating.
    [10]
    10. Aerosolizable material according to any one of the preceding claims, wherein the aerosolizable material is in the form of a rod-like component.
    [11]
    11. Aerosolizable material according to any one of the preceding claims, in which the non-encapsulated flavoring agent comprises menthol and / or a cooling agent.
    [12]
    12. Aerosolizable material according to any one of the preceding claims, in which the non-encapsulated flavoring agent comprises menthol and / or a cooling agent.
    [13]
    13. Aerosolizable material according to any one of the preceding claims, in which the encapsulated flavoring agent comprises an encapsulating material, and in which the encapsulating material comprises at least one material from a polysaccharide; cellulosic material; gelatin; eraser; protein material; a polyol matrix material; a gel; a wax; polyurethane; polymerized and hydrolyzed vinyl acetate, polyester, polycarbonate, polymethacrylate, polyglycol, polyethylene, polystyrene, polypropylene, polyvinyl chloride or a mixture thereof.
    CH 715 043 A2
    [14]
    14. An aerosol generating article for use in an aerosol generating assembly, the article comprising an aerosolizable material according to any one of claims 1 to 13 and a cooling element and / or a filter.
    [15]
    15. An aerosol generator assembly comprising a heating element and an aerosolizable material according to any one of claims 1 to 13, in which the heating element is arranged to heat the aerosolizable material in use for generating an aerosol.
    [16]
    16. An aerosol generator assembly according to claim 15, in which the aerosolizable material comprises at least two sections, and in which the assembly is configured to provide a different thermal profile to each of the sections of the aerosolizable material.
    [17]
    17. An aerosol generator assembly according to claim 16, comprising at least two heating elements which are arranged to heat respectively different sections of the aerosolizable material.
    [18]
    18. A method of generating an aerosol comprising heating, in an aerosol generating assembly, an aerosolizable material, in which the aerosolizable material comprises a tobacco material, a non-encapsulated flavoring agent and an encapsulated flavoring agent.
    [19]
    19. The method of claim 18, wherein the aerosol generating material comprises at least two sections, and wherein a different thermal profile is provided to each section of the aerosolizable material.
    CH 715 043 A2
    103
    103b

    103a
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US4854331A|1984-09-14|1989-08-08|R. J. Reynolds Tobacco Company|Smoking article|
    US4827950A|1986-07-28|1989-05-09|R. J. Reynolds Tobacco Company|Method for modifying a substrate material for use with smoking articles and product produced thereby|
    BR9505831A|1994-01-26|1996-03-12|Japan Tobacco Inc|Aroma clarifying article|
    US20080302376A1|2007-06-08|2008-12-11|Philip Morris Usa Inc.|Smoking article with controlled flavor release|
    JP5015269B2|2007-12-27|2012-08-29|日本たばこ産業株式会社|Non-combustible smoking article with carbonaceous heating source|
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    GB0918129D0|2009-10-16|2009-12-02|British American Tobacco Co|Control of puff profile|
    ES2741139T3|2010-03-26|2020-02-10|Japan Tobacco Inc|Smoking item|
    ES2557195T3|2011-09-09|2016-01-22|Philip Morris Products S.A.|Smoking article comprising a flavor supply material|
    GB201312501D0|2013-07-12|2013-08-28|British American Tobacco Co|Material for inclusion in a smoking article|
    WO2015097187A1|2013-12-24|2015-07-02|Philip Morris Products S.A.|Flavourant containing material|
    GB201607475D0|2016-04-29|2016-06-15|British American Tobacco Co|Article for generating an inhalable medium and method of heating a smokable material|
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    GB201612945D0|2016-07-26|2016-09-07|British American Tobacco Ltd|Method of generating aerosol|GB201907702D0|2019-05-30|2019-07-17|Nicoventures Trading Ltd|Aerosol generation|
    WO2021180968A1|2020-03-12|2021-09-16|Philip Morris Products S.A.|Aerosol-generating article having a plurality of air ingress zones|
    WO2021180967A1|2020-03-12|2021-09-16|Philip Morris Products S.A.|Aerosol-generating system having an air ingress zone|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    GBGB1808526.6A|GB201808526D0|2018-05-24|2018-05-24|Aerosol Generation|
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