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  • 专利说明
  • 权利要求
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    • 专利摘要:
    aerosol forming substrate and aerosol delivery system. an aerosol forming substrate for use in combination with an inductive heating device is described. the aerosol-forming substrate comprises a solid material that is capable of releasing volatile compounds that can form an aerosol upon heating the aerosol-forming substrate and at least one first susceptor material to heat the aerosol-forming substrate. at least a first susceptor material is disposed in thermal proximity to the solid material. the aerosol forming substrate further comprises at least one second susceptor material having a second curing temperature that is less than a first curing temperature of the first susceptor material. the second curie temperature of the second susceptor material corresponds to a preset maximum heating temperature of the first susceptor material. an aerosol delivery system is also described.
    公开号:BR112016019482B1
    申请号:R112016019482-9
    申请日:2015-05-21
    公开日:2021-08-17
    发明作者:Oleg Mironov；Ihar Nikolaevich Zinovik
    申请人:Philip Morris Products S.A.；
    IPC主号:
    专利说明:

    [001] The present invention relates to an aerosol forming substrate for use in combination with an inductive heating device. The present invention also relates to an aerosol delivery system.
    [002] From the prior art, aerosol delivery systems comprising an aerosol forming substrate and an inductive heating device are known. The inductive heating device comprises an induction source that produces an alternating electromagnetic field that induces a heat-generating eddy current in a susceptor material. The susceptor material is in thermal proximity to the aerosol-forming substrate. The heated susceptor material in turn heats the aerosol-forming substrate which comprises a material that is capable of releasing volatile compounds that can form an aerosol. A number of modalities for aerosol-forming substrates have been described in the art which are provided in various configurations for the susceptor material in order to determine proper heating of the aerosol-forming substrate. Thus, an operating temperature of the aerosol forming substrate is sought at which the release of volatile compounds that can form an aerosol is satisfactory.
    [003] However, it would be desirable to be able to control the operating temperature of the aerosol forming substrate efficiently.
    [004] According to one aspect of the invention, an aerosol forming substrate for use in combination with an inductive heating device is provided. The aerosol-forming substrate comprises a solid material that is capable of releasing volatile compounds that can form an aerosol upon heating the aerosol-forming substrate and at least one first susceptor material to heat the aerosol-forming substrate. At least the first susceptor material is disposed in thermal proximity to the solid material. The aerosol forming substrate further comprises at least one second susceptor material that has a second Curie temperature that is less than a first Curie temperature of the first susceptor material. The second Curie temperature of the second susceptor material corresponds to a preset maximum heating temperature of the first susceptor material.
    [005] By providing at least a first and second susceptor materials that have the first and second Curie temperatures distinct from each other, the heating of the aerosol forming substrate and the temperature control of the heating can be separated. While the first susceptor material can be optimized with respect to heat loss and therefore heating efficiency, the second susceptor material can be optimized with respect to temperature control. The second susceptor material need not have any pronounced heating characteristics. The second susceptor material has a second Curie temperature that corresponds to a preset maximum heating temperature of the first susceptor material. The maximum heating temperature can be set such that a local burning of the solid material is avoided. The first susceptor material, which can be optimized for heating, can have a first Curie temperature that is greater than the preset maximum heating temperature. The separation of the heating and temperature control functions allows an optimization of the concentrations of the at least first and second susceptor materials, respectively, with regard to the amount of aerosol-forming substrate. Thus, for example, a weight concentration of the second susceptor material, which serves as a tool for temperature control, can be selected less than a weight concentration of the first susceptor material whose main function is heating the aerosol-forming substrate. The separation between heating and temperature control functions further allows for optimization of the distribution of at least the first and second susceptor materials within or around the aerosol forming substrate according to specific requirements, such as formulation and/or packing density of the solid material. Once the second susceptor material has reached its second Curie temperature, it changes its magnetic properties. At the second Curie temperature, the second susceptor material reversibly changes from a ferromagnetic phase to a paramagnetic phase. During inductive heating of the aerosol forming substrate this phase shift of the second susceptor material can be detected in-line and the inductive heating can be stopped automatically. Thus, an overheating of the aerosol-forming substrate can be avoided, even though the first susceptor material that is responsible for heating the aerosol-forming substrate has a first Curie temperature that is higher than the preset maximum heating temperature. After inductive heating stops, the second susceptor material cools down to a temperature lower than its second Curie temperature at which it regains its ferromagnetic properties again. This phase shift can be detected in-line and inductive heating can be activated again. Thus, inductive heating of the aerosol-forming substrate corresponds to a repeated activation and deactivation of the inductive heating device. Temperature control is non-contact. Apart from circuits and electronic components that are preferably already integrated in the inductive heating device there is no need for any additional circuits and electronic components.
    [006] The aerosol forming substrate is preferably a solid material capable of releasing volatile compounds that can form an aerosol. The term solid, as used in this document, encompasses solid materials, semi-solid materials as well as liquid components, which may be supplied in a carrier material. Volatile compounds are released by heating the aerosol-forming substrate. The aerosol forming substrate can comprise nicotine. The nicotine-containing aerosol forming substrate can be a nicotine salt matrix. The aerosol forming substrate may comprise a plant-based material. The aerosol-forming substrate may comprise tobacco, and preferably, the tobacco-containing material contains volatile tobacco flavor compounds, which are released from the aerosol-forming substrate upon heating. The aerosol forming substrate may comprise a homogenized tobacco material. The homogenized tobacco material can be formed by agglomeration of the particulate tobacco. The aerosol forming substrate may alternatively comprise a non-tobacco material. The aerosol forming substrate may comprise a homogenized plant-based material.
    [007] The aerosol forming substrate may comprise at least one aerosol former. The aerosol former can be any known suitable compound or mixture of compounds which, when in use, facilitates the formation of a dense and stable aerosol, and which is substantially resistant to thermal degradation at the operating temperature of the inductive heating device. Suitable aerosol formers are well known in the art and include, but are not limited to: polyhydric alcohols such as triethylene glycol, 1,3-butanediol and glycerin; esters of polyhydric alcohols, such as glycerol mono-, di- or triacetate; and aliphatic esters of mono-, di- or polycarboxylic acids, such as dimethyl dodecanedioate and dimethyl tetradecanedioate. Particularly preferred aerosol formers are polyhydric alcohols or mixtures thereof, such as triethylene glycol, 1,3-butanediol and, more preferably, glycerin.
    [008] The aerosol forming substrate may comprise other additives and ingredients such as flavorings. Preferably, the aerosol forming substrate comprises nicotine and at least one aerosol former. In a particularly preferred embodiment, the aerosol former is glycerin. Susceptor materials that are in thermal proximity to the aerosol forming substrate allow for more efficient heating and therefore higher operating temperatures can be achieved. The higher operating temperature allows glycerin to be used as an aerosol former which provides an improved aerosol compared to aerosol formers used in known systems.
    [009] In an embodiment of the aerosol forming substrate according to the invention, the second Curie temperature of the second susceptor material can be selected such that, upon inductive heating, an average temperature of the aerosol forming substrate does not exceed 240°C . The overall mean temperature of the aerosol-forming substrate is defined as the arithmetic mean of a series of temperature measurements in the central and peripheral regions of the aerosol-forming substrate. The presetting of a maximum for the overall average temperature of the aerosol forming substrate can be adapted to optimize an aerosol production.
    [0010] In another embodiment of the aerosol-forming substrate, the second Curie temperature of the second susceptor material is selected so that it does not exceed 370°C, to avoid a local overheating of the aerosol-forming substrate comprising the solid material that is capable of releasing volatile compounds that can form an aerosol.
    [0011] According to another aspect of the invention, the first and second susceptor material comprised in the aerosol forming substrate may have different geometric configurations. Thus, at least one of the first and second susceptor materials, respectively, may be one of particles or filament or mesh-like configuration. Having different geometric configurations, the first and second susceptor materials can be adapted to their specific function. So, for example, a first susceptor material that has a heating function can have a geometric configuration that presents a large surface area for the solid material that is capable of releasing volatile compounds that can form an aerosol in order to enhance transfer of heat. The second susceptor material that has a temperature control function does not have to have a large surface area. Having different geometric configurations, the first and second susceptor materials, respectively, can be arranged with respect to the solid material comprised of the aerosol forming substrate so that it can perform its specific tasks optimally.
    [0012] Thus, in an embodiment of the aerosol forming substrate according to the invention at least one of the first and second susceptor materials, respectively, may be of particulate configuration. The particles preferably have an equivalent spherical diameter of 10 µm - 100 µm and are distributed throughout the aerosol-forming substrate. The equivalent spherical diameter is used in combination with irregularly shaped particles and is defined as the diameter of a sphere of equivalent volume. At selected sizes, the particles can be distributed throughout the aerosol-forming substrate as needed and can be held firmly within the aerosol-forming substrate. The particles can be homogeneously distributed, or they can have a distribution gradient, for example, from a central axis of the aerosol-forming substrate to the periphery, or they can be distributed throughout the aerosol-forming substrate with peaks of local concentration .
    [0013] In another embodiment of the aerosol forming substrate the first and second susceptor materials both may be of particulate configuration and may be configured to form a unitary structure. In this context, the term "configured to form a unitary structure" may include an agglomeration of the first and second particulate susceptor materials to regular or irregularly shaped granules having equivalent spherical diameters greater than those of the first and second particulate susceptor materials , respectively. It may also include a more or less homogeneous mixture of the first and second particulate susceptor materials, respectively, and optionally compressing and sintering the compressed particulate mixture into a single yarn or filament structure. The close proximity of the first and second particulate susceptor materials can be an advantage over even more precise temperature control.
    [0014] In a further embodiment of the aerosol forming substrate at least one of the first and second susceptor materials, respectively, may be of a filament configuration and may be disposed within the aerosol forming substrate. In another embodiment, the first or second filament-form susceptor material may extend into the aerosol-forming substrate. Filament structures can have advantages over their fabrication and their geometric regularity and reproducibility. Geometric regularity and reproducibility can be advantageous in both temperature control and controlled local heating.
    [0015] In another embodiment of the aerosol forming substrate according to the invention, at least one of the first and second susceptor materials may have a mesh-like configuration that is arranged within the aerosol forming substrate. Alternatively, the susceptor material of mesh-like configuration can at least partially form a coating for the solid material. The term "mesh-like configuration" includes layers that have discontinuities across them. For example, the layer can be a canvas, mesh, grid, or perforated sheet.
    [0016] In another embodiment of the aerosol forming substrate, the first and second susceptor materials may be configured to form a mesh-like structural entity. The mesh-like structural entity may, for example, extend axially within the aerosol-forming substrate. Alternatively, the mesh-like structural entity of the first and second susceptor materials can at least partially form a coating for the solid material. The term "mesh-like structure" designates all structures that can be configured from the first and second susceptor material and have discontinuities therethrough, including screens, meshes, grids or a perforated sheet.
    [0017] While in the aforementioned modalities of the aerosol-forming substrate, the first and second susceptor materials may be of a distinct geometric configuration from each other, it may be desirable, for example, for the purposes of manufacturing the aerosol-forming substrate , that the first and second susceptor materials are of similar geometric configuration.
    [0018] In another embodiment of the invention, aerosol forming substrate may be of a generally cylindrical shape and be surrounded by a tubular coating, such as, for example, a wrap. Tubular coating, such as wrapping, can help stabilize the shape of the aerosol-forming substrate and prevent accidental dissociation of the solid material that is capable of releasing volatile compounds that can form an aerosol and the first and second susceptor materials.
    [0019] The aerosol forming substrate may be associated with a nozzle, which optionally may include a filter plug. The aerosol-forming substrate comprising solid material that is capable of releasing volatile compounds that can form an aerosol upon heating the aerosol-forming substrate and the first and second susceptor materials and the nozzle can be configured to form a structural entity. Every time a new aerosol-forming substrate is to be used in combination with an inductive heating device, the user is automatically provided with a new nozzle, which can be appreciated from a hygienic point of view. Optionally, the nozzle can be provided with a filter plug, which can be selected according to the composition of the aerosol forming substrate.
    [0020] An aerosol delivery system according to the invention comprises an inductive heating device and an aerosol forming substrate according to any of the embodiments described above. With such an aerosol delivery system, an overheating of the aerosol forming substrate can be avoided. Both inductive heating and temperature control of the aerosol forming substrate can be performed without contact. Circuitry and electronic components that can already be integrated into the inductive heating device to control the inductive heating of the aerosol forming substrate at the same time can be used for temperature control of the aerosol.
    [0021] In another embodiment of the aerosol dispensing system the inductive heating device may be equipped with an electronic control circuit, which is adapted for a closed-loop control of the heating of the aerosol forming substrate. Thus, once the second susceptor material, which performs the temperature control function, has reached its second Curie temperature at which it changes its magnetic properties from ferromagnetic to paramagnetic, heating can be stopped. When the second susceptor material is cooled to a temperature below its second Curie temperature at which its magnetic properties revert back from paramagnetic to ferromagnetic, the inductive heating of the aerosol forming substrate can be automatically resumed again. Thus, with the aerosol delivery system according to the invention, heating of the aerosol-forming substrate can be carried out at a temperature ranging between the second Curie temperature and that temperature below the second Curie temperature, where the second susceptor material regains its ferromagnetic characteristics.
    [0022] The aerosol-forming substrate may be releasably held within a heating chamber of the inductive heating device such that a nozzle, which can be attached to the aerosol-forming substrate, at least partially protrudes from the device. inductive heating. The aerosol forming substrate and the nozzle can be assembled to form a structural entity. Each time a new aerosol-forming substrate is inserted into the heating chamber of the inductive heating device, the user is automatically provided with a new nozzle.
    [0023] The above described modalities of the aerosol forming substrate and the aerosol delivery system will become more evident from the detailed description below, in which reference is made to the attached schematic drawings which are not to scale, in which :
    [0024] Figure 1 is a schematic drawing of the aerosol dispensing system comprising an inductive heating device and an aerosol forming substrate inserted into a heating chamber;
    [0025] Figure 2 shows a first embodiment of an aerosol forming substrate with the first and second susceptor materials of the particulate configuration;
    [0026] Figure 3 shows a second embodiment of an aerosol forming substrate with a second particulate susceptor material combined with a first susceptor material of the filament configuration;
    [0027] Figure 4 shows another embodiment of an aerosol forming substrate, in which the first and second particulate configuration susceptor materials have been configured to form a unitary structure; and
    [0028] Figure 5 shows a further embodiment of an aerosol forming substrate with a second particulate material susceptor material combined with a first susceptor material of the mesh-like configuration.
    [0029] Inductive heating is a known phenomenon described by Faraday's law of induction and Ohm's law. More specifically, Faraday's law of induction states that if the magnetic induction in a conductor is changing, an altered electric field is produced in the conductor. Once this electric field is produced in a conductor, a current, known as an eddy current, will flow in the conductor according to Ohm's law. Eddy current will generate heat proportional to current density and conductor resistivity. A conductor that is capable of being inductively heated is known as a susceptor material. The present invention employs an inductive heating device equipped with an inductive heating source, such as an induction coil, which is capable of generating an alternating electromagnetic field from an AC source such as an LC circuit. Heat-generating eddy currents are produced in the susceptor material that is in thermal proximity to a solid material that is capable of releasing volatile compounds that can form an aerosol by heating the aerosol-forming substrate and which is comprised in an aerosol-forming substrate. aerosol. The term solid, as used in this document, encompasses solid materials, semi-solid materials as well as liquid components, which may be supplied in a carrier material. The primary heat transfer mechanisms from the susceptor material to the solid material are: conduction, radiation and possibly convection.
    [0030] In schematic Figure 1, an exemplary embodiment of an aerosol dispensing system in accordance with the invention is generally designated with reference numeral 100. The aerosol dispensing system 100 comprises an inductive heating device 2 and an aerosol forming substrate 1 associated therewith. Inductive heating device 2 may comprise an elongated tubular housing 20 having an accumulator chamber 21 to accommodate an accumulator 22 or a battery and a heating chamber 23. The heating chamber 23 may be provided with an inductive heating source which, according to the illustrated example embodiment, it can be constituted by an induction coil 31 that is electrically connected with an electronic circuit 32. The electronic circuits 32 can, for example, be provided on a printed circuit board 33 delimiting an axial extension of the heating chamber 23. The electrical energy required for inductive heating is supplied by the accumulator 22 or by the battery which is accommodated in the accumulator chamber 21 and which is electrically connected to the electronic circuits 32. The heating chamber 23 has an internal cross-section of so that the aerosol forming substrate 1 can be releasably held therein and can be easily removed and replaced with another aerosol forming substrate 1 when desired.
    The aerosol forming substrate 1 may have a generally cylindrical shape and may be surrounded by a tubular coating 15, such as a wrapper. The tubular coating 15, such as the wrapper, can help to stabilize the shape of the aerosol-forming substrate 1 and prevent an accidental loss of the contents of the aerosol-forming substrate 1. As shown in the exemplary embodiment of the aerosol delivery system 100 According to the invention, the aerosol-forming substrate 1 can be connected to a nozzle 16 which, when the aerosol-forming substrate 1 is inserted in the heating chamber 23, projects at least partially from the heating chamber 23. The nozzle 16 may comprise a filter plug 17, the filter plug may be selected according to the composition of the aerosol forming substrate 1. The aerosol forming substrate 1 and the nozzle 16 may be assembled to form a structural entity. Every time a new aerosol forming substrate 1 is to be used in combination with an inductive heating device 2, the user is automatically provided with a new nozzle 16, which can be appreciated from a hygienic point of view.
    [0032] As shown in Figure 1, the induction coil 31 can be arranged in a peripheral region of the heating chamber 23, in the vicinity of the frame 20 of the inductive heating device 2. The windings of the induction coil 31 include a free space of the heating chamber 23 which is able to accommodate the aerosol forming substrate 1. The aerosol forming substrate 1 can be inserted into this free space of the heating chamber 23 from an open end of the tubular housing 20 of the inductive heating device 2 until it reaches a stop, which can be provided inside the heating chamber 23. The stop can be constituted by at least one shoulder protruding from an inner wall of the tubular housing 20 or it can be constituted by the printed circuit board 33, which delimits the heating chamber 23 axially, as shown in the example embodiment shown in Figure 1. The inserted aerosol-forming substrate 1 can be released in a manner. releasable within the heating chamber 23, for example an annular sealing gasket 26, which can be provided in the vicinity of the open end of the tubular housing 20.
    [0033] Aerosol forming substrate 1 and optional nozzle 16 with optional filter plug 17 are air permeable. The inductive heating device 2 can include a number of vents 24, which can be distributed along the tubular housing 20. The air passages 34, which can be provided on the printed circuit board 33, allow the flow of air from the vents 24 to the aerosol forming substrate 1. It should be noted that, in alternative embodiments of the inductive heating device 2, the printed circuit board 33 can be omitted so that air from the vents 24 in the tubular housing 20 can reach the substrate aerosol former 1 virtually unimpeded. The inductive heating device 2 can be equipped with an air flow sensor (not shown in Figure 1) for activating the electronic circuit 32 and the induction coil 31 when incoming air is detected. The airflow sensor can, for example, be provided in the vicinity of one of the vents 24 or one of the air passages 34 of the printed circuit board 33. Thus, a user can suck on the mouthpiece 16 in order to initiate the induction heating of the aerosol-forming substrate 1, upon heating an aerosol, which is released by the solid material comprised in the aerosol-forming substrate 1, can be inhaled together with the air that is sucked through the aerosol-forming substrate 1.
    [0034] Figure 2 schematically shows a first embodiment of an aerosol forming substrate, which is generally designated with the reference numeral 1. The aerosol forming substrate 1 may include a generally tubular housing 15, such as, for example, a wrap. The tubular housing 15 may be made of a material that does not visibly impede an electromagnetic field reaching the contents of the aerosol-forming substrate 1. For example, the tubular housing 15 may be a paper wrapper. Paper has a high magnetic permeability and in an alternating electromagnetic field is not heated by eddy currents. The aerosol forming substrate 1 comprises a solid material 10 which is capable of releasing volatile compounds which can form an aerosol by heating the aerosol forming substrate 1 and at least a first susceptor material 11 to heat the aerosol forming substrate 1. In addition to the first susceptor material 11, the aerosol forming substrate 1 further comprises at least one second susceptor material 12. The second susceptor material 12 has a second Curie temperature that is lower than a first Curie temperature of the first susceptor material 11. Thus, after inductive heating of aerosol forming substrate 1 the second susceptor material 12 will reach its second specific Curie temperature. At the second Curie temperature, the second susceptor material 12 reversibly changes from a ferromagnetic phase to a paramagnetic phase. During inductive heating of the aerosol forming substrate 1 such a phase shift of the second susceptor material 12 can be detected in-line and the inductive heating can be stopped automatically. In this way, the second Curie temperature of the second susceptor material 12 corresponds to a preset maximum heating temperature of the first susceptor material 11. After inductive heating stops, the second susceptor material 12 cools down to a temperature lower than its second Curie temperature where regains its ferromagnetic properties again. This phase shift can be detected in-line and inductive heating can be activated again. Thus, the inductive heating of the aerosol-forming substrate 1 corresponds to a repeated activation and deactivation of the inductive heating device. Temperature control is non-contact. Apart from the electronic circuits which can preferably already be integrated in the inductive heating device there is no need for any additional electronic circuits and components.
    [0035] By providing at least one first and second susceptor materials 11, 12 having first and second Curie temperatures distinct from each other, heating the aerosol forming substrate 1 and the temperature control of inductive heating can be separated. The first susceptor material 11 can be optimized with regard to heat loss and therefore heating efficiency. Thus, the first susceptor material 11 must have a low magnetic reluctance and a correspondingly high relative permeability to optimize surface eddy currents generated by an alternating electromagnetic field of a given strength. The first susceptor material 11 must also have a relatively low electrical resistivity to increase Joule heat dissipation and thus heat loss. The second susceptor material 12 can be optimized with respect to temperature control. The second susceptor material 12 need not have any pronounced heating characteristics. As far as induction heating is concerned, it is the second Curie temperature of the second susceptor material 12, which corresponds to the preset maximum heating temperature of the first susceptor material 11.
    The second Curie temperature of the second susceptor material 12 can be selected so that upon being inductively heated to an average temperature of the aerosol forming substrate 1 does not exceed 240°C. The overall mean temperature of aerosol-forming substrate 1 is defined as the arithmetic mean of a series of temperature measurements in the central and peripheral regions of the aerosol-forming substrate. In another embodiment of the aerosol forming substrate 1, the second Curie temperature of the second susceptor material 12 may be selected so that it does not exceed 370°C, to avoid local overheating of the aerosol forming substrate 1 comprising the solid material 10 which be able to release volatile compounds that can form an aerosol.
    [0037] The above described basic composition of aerosol forming substrate 1 of the example embodiment of Figure 2 is common to all additional embodiments of aerosol forming substrate 1 which will be described below.
    [0038] As shown in Figure 2, the first and second susceptor materials 11, 12 may have the particulate configuration. The first and second susceptor materials 11, 12, preferably. have an equivalent spherical diameter of 10 µm - 100 µm and are distributed throughout the aerosol forming substrate. The equivalent spherical diameter is used in combination with irregularly shaped particles and is defined as the diameter of a sphere of equivalent volume. For selected sizes, the first and second susceptor materials 11, 12 can be distributed throughout the aerosol-forming substrate 1 as needed and can be held firmly within the aerosol-forming substrate 1. The particulate susceptor materials 11, 12 they can be distributed throughout the solid material 10 homogeneously, as shown in the aerosol-forming substrate example modality 1 according to Figure 2. Alternatively, they can have a distribution gradient, for example, from a central axis of the aerosol-forming substrate 1 to the periphery, or can be distributed throughout the aerosol-forming substrate 1 with peaks of local concentration.
    [0039] In Figure 3 another embodiment of an aerosol-forming substrate is shown, which again bears the reference numeral 1. The aerosol-forming substrate 1 may have a generally cylindrical shape and may be surrounded by a tubular coating 15, such as by example, a wrap. The aerosol forming substrate comprises solid material 10 which is capable of releasing volatile compounds which can form an aerosol by heating the aerosol forming substrate 1 and at least the first and second susceptor material 11, 12. The first susceptor material 11 which is responsible for heating the aerosol forming substrate 1 may be of a filament configuration. The first susceptor material of the filament configuration can have different lengths and diameters and can be distributed more or less evenly throughout the solid material. As an example shown in Figure 3, the first susceptor material 11 of the filament configuration may be of a wire-like shape and may extend axially through a longitudinal extent of the aerosol forming substrate 1. The second susceptor material 12 may be of configuration in particles and can be distributed throughout the solid material 10. Note that, however, as necessary, the geometric configuration of the first and second susceptor materials 11, 12 can be changed. Thus, the second susceptor material 12 may have the filament configuration and the first susceptor material 11 may have the particulate configuration.
    [0040] In Figure 4 yet another exemplary embodiment of an aerosol forming substrate is shown, which again is generally designated with the reference numeral 1. The aerosol forming substrate 1 may again have a generally cylindrical shape and may be surrounded by a tubular liner 15 such as a wrap. The aerosol forming substrate comprises solid material 10 which is capable of releasing volatile compounds which can form an aerosol by heating the aerosol forming substrate 1 and at least the first and second susceptor material 11, 12. The first and second materials susceptors 11, 12 can be of particulate configuration and can be assembled to form a unitary structure. In this context, the term "configured to form a unitary structure" may include an agglomeration of the first and second susceptor materials 11, 12 into particles for granules of regular or irregular shape, having equivalent spherical diameters greater than those of the first and second materials. particulate susceptors, respectively. It can also include a more or less homogeneous mixture of the first and second susceptor materials 11, 12 and compressing and optionally sintering the mixture into compressed particles to form a filament or strand of structure, which can extend axially through an extension. length of the aerosol-forming substrate 1, as shown in Figure 4.
    [0041] In Figure 5 a further exemplary embodiment of an aerosol forming substrate is again designated generally with the reference numeral 1. The aerosol forming substrate 1 may again have a generally cylindrical shape and may be surrounded by a coating. tubular 15, such as a wrap. The aerosol forming substrate comprises solid material 10 which is capable of releasing volatile compounds which can form an aerosol by heating the aerosol forming substrate 1 and at least the first and second susceptor material 11, 12. The first susceptor material 11 may have a mesh-like configuration, which may be disposed within the aerosol forming substrate 1, or alternatively may at least partially form a coating for the solid material 10. The term "mesh-like configuration" includes layers that have discontinuities across the same. For example, the layer can be a canvas, mesh, grid, or perforated sheet. The second susceptor material 12 may be of particulate configuration and may be distributed throughout the solid material 10. Again, it is noted that, as required, the geometric configuration of the first and second susceptor materials 11, 12 may be changed. Thus, the second susceptor material 12 may have the mesh-like configuration and the first susceptor material 11 may have the particulate configuration.
    [0042] In another embodiment of the aerosol forming substrate, the first and second susceptor materials 11, 12 may be configured to form a mesh-like structural entity. The mesh-like structural entity may, for example, extend axially within the aerosol-forming substrate. Alternatively, the mesh-like structural entity of the first and second susceptor materials 11, 12 may at least partially form a coating for the solid material. The term "mesh-like structure" designates all structures that can be configured from the first and second susceptor material and have discontinuities therethrough, including screens, meshes, grids or a perforated sheet. The above described embodiment of the aerosol forming substrate is not shown in a separate drawing, due to the fact that it basically corresponds to the one in Figure 5. The mesh-like structural entity is composed of horizontal filaments of the first susceptor material 11 and vertical filaments of second. material susceptor 12 or vice versa. In such an embodiment of the aerosol forming material there would normally be no separate second particulate material susceptor 12.
    [0043] Although different embodiments of the invention are described in this document with reference to the accompanying drawings, the invention is not limited to those embodiments. Various modifications and alterations are conceivable without departing from the general teachings of the present invention. Therefore, the scope of protection is defined by the attached claims.
    权利要求:
    Claims (15)
    [0001]
    1. Aerosol forming substrate for use in combination with an inductive heating device (2), the aerosol forming substrate (1) comprising a solid material (10) capable of releasing volatile compounds which can form an aerosol upon heating the forming substrate of aerosol (1) and a first susceptor material (11) for heating the aerosol forming substrate (1), the first susceptor material (11) being disposed in thermal proximity to the solid material (10), characterized in that the substrate The aerosol former (1) comprises at least one second susceptor material (12) being disposed in thermal proximity to the solid material (10), the second susceptor material (12) having a second Curie temperature that is less than a first Curie temperature. of the first susceptor material (11), and the second Curie temperature of the second susceptor material (12) corresponding to a predefined maximum heating temperature of the first susceptor material ptor (11).
    [0002]
    2. Aerosol-forming substrate according to claim 1, characterized in that the second material susceptor (12) has a second Curie temperature so that, upon inductive heating, at an overall average temperature of the aerosol-forming substrate do not exceed 240°C.
    [0003]
    3. Aerosol forming substrate according to claim 1 or 2, characterized in that the second susceptor material (12) has a second Curie temperature not exceeding 370°C.
    [0004]
    4. Aerosol forming substrate according to any one of claims 1 to 3, characterized in that at least one of the first and second susceptor materials (11, 12) has a configuration between particularized or filament, or similar to mesh .
    [0005]
    5. Aerosol forming substrate according to claim 4, characterized in that at least one of the first and second susceptor materials (11, 12) is of the particularized configuration, having an equivalent spherical diameter of 10 μm - 100 μm and being distributed throughout the aerosol-forming substrate (1).
    [0006]
    6. The aerosol forming substrate according to claim 4, characterized in that the first and second susceptor materials (11, 12) are of particle configuration and are assembled to form a unitary structure.
    [0007]
    7. Aerosol-forming substrate according to claim 4, characterized in that at least one of the first and second susceptor materials (11, 12) is of filament configuration and is disposed within the aerosol-forming substrate (1 ).
    [0008]
    8. The aerosol-forming substrate according to claim 4, characterized in that at least one of the first and second susceptor materials (11, 12) is of a mesh-like configuration and is disposed within the aerosol-forming substrate ( 1).
    [0009]
    9. Aerosol forming substrate according to claim 4, characterized in that at least one of the first and second susceptor materials (11, 12) is of mesh-like configuration, at least partially forming a coating of the solid material (10).
    [0010]
    10. Aerosol forming substrate according to claim 4, characterized in that the first and second susceptor materials (11, 12) are assembled to form a mesh-like structural entity that is disposed within the aerosol forming substrate. aerosol (1).
    [0011]
    An aerosol forming substrate according to claim 4, characterized in that the first and second susceptor materials (11, 12) are assembled to form a mesh-like structural entity that at least partially forms a coating of the solid material (10).
    [0012]
    12. Aerosol forming substrate according to any one of claims 1 to 11, characterized in that the aerosol forming substrate (1) is closed by a tubular coating (15), preferably a wrap.
    [0013]
    13. The aerosol-forming substrate according to any one of claims 1 to 12, characterized in that the aerosol-forming substrate (1) is attached to a nozzle (16) which optionally includes a filter plug (17).
    [0014]
    14. Aerosol delivery system characterized in that it comprises an inductive heating device (2) and an aerosol forming substrate (1), as defined in any one of claims 1 to 13.
    [0015]
    15. Aerosol delivery system according to claim 14, characterized in that the inductive heating device (2) is provided with an electronic control circuit (32) which is adapted to a closed-loop control of heating the aerosol-forming substrate.
    类似技术:
    公开号 | 公开日 | 专利标题
    BR112016019482B1|2021-08-17|AEROSOL-FORMING SUBSTRATE AND AEROSOL DISTRIBUTION SYSTEM
    DK2975957T3|2017-05-08|Aerosol forming substrate and aerosol delivery system
    BR112016019943B1|2021-03-30|AEROSOL FORMATING SUBSTRATE AND AEROSOL DISTRIBUTION SYSTEM
    US10660368B2|2020-05-26|Aerosol generating article with heat diffuser
    BR112016019674B1|2021-11-03|AEROSOL-FORMING SUBSTRATE AND AEROSOL DISTRIBUTION SYSTEM
    同族专利:
    公开号 | 公开日
    ZA201604413B|2019-12-18|
    RS55767B1|2017-07-31|
    ES2622066T3|2017-07-05|
    AR100862A1|2016-11-09|
    US20190320720A1|2019-10-24|
    DK2975958T3|2017-05-08|
    EP2975958A1|2016-01-27|
    SG11201605923WA|2016-08-30|
    AR100542A1|2016-10-12|
    BR112016019482A2|2017-08-15|
    JP2016529874A|2016-09-29|
    AU2015261886A1|2016-07-21|
    RU2600912C1|2016-10-27|
    SI2975958T1|2017-04-26|
    US20170071250A1|2017-03-16|
    PH12016501274B1|2016-08-15|
    PT2975958T|2017-03-28|
    LT2975958T|2017-03-27|
    NZ721661A|2020-01-31|
    MX2016015139A|2017-03-27|
    JP5986326B1|2016-09-06|
    IL246506A|2022-03-01|
    PL2975958T3|2017-07-31|
    AU2015261886B2|2019-12-05|
    IL246506D0|2016-08-31|
    HUE032682T2|2017-10-30|
    KR20150143892A|2015-12-23|
    TW201544171A|2015-12-01|
    MY178750A|2020-10-20|
    PH12016501274A1|2016-08-15|
    EP2975958B1|2017-03-01|
    UA118777C2|2019-03-11|
    CA2937717A1|2015-11-26|
    CN105307525B|2016-12-14|
    CN105307525A|2016-02-03|
    TWI635897B|2018-09-21|
    WO2015177263A1|2015-11-26|
    KR101656639B1|2016-09-22|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US4701587A|1979-08-31|1987-10-20|Metcal, Inc.|Shielded heating element having intrinsic temperature control|
    US4256945A|1979-08-31|1981-03-17|Iris Associates|Alternating current electrically resistive heating element having intrinsic temperature control|
    JPS62204756A|1986-03-04|1987-09-09|Daiken Iko Kk|Drug volatilizing method and apparatus|
    US5188130A|1989-11-29|1993-02-23|Philip Morris, Incorporated|Chemical heat source comprising metal nitride, metal oxide and carbon|
    US5269327A|1989-12-01|1993-12-14|Philip Morris Incorporated|Electrical smoking article|
    US5613505A|1992-09-11|1997-03-25|Philip Morris Incorporated|Inductive heating systems for smoking articles|
    US5285798A|1991-06-28|1994-02-15|R. J. Reynolds Tobacco Company|Tobacco smoking article with electrochemical heat source|
    DE69417964T2|1993-02-22|1999-11-11|Nottingham Spirk Design Ass|THROUGH MICROWAVE HEATABLE DISPENSER FOR MELTABLE ADHESIVES|
    US5479948A|1993-08-10|1996-01-02|Philip Morris Incorporated|Electrical smoking article having continuous tobacco flavor web and flavor cassette therefor|
    US5911898A|1995-05-25|1999-06-15|Electric Power Research Institute|Method and apparatus for providing multiple autoregulated temperatures|
    US20070235046A1|2006-03-31|2007-10-11|Philip Morris Usa Inc.|Smoking articles comprising magnetic filter elements|
    US20080006796A1|2006-07-10|2008-01-10|General Electric Company|Article and associated method|
    CN100593982C|2007-09-07|2010-03-17|中国科学院理化技术研究所|Electronic cigarette having nanometer sized hyperfine space warming atomizing functions|
    EP2113178A1|2008-04-30|2009-11-04|Philip Morris Products S.A.|An electrically heated smoking system having a liquid storage portion|
    EP2319334A1|2009-10-27|2011-05-11|Philip Morris Products S.A.|A smoking system having a liquid storage portion|
    EP2468116A1|2010-12-24|2012-06-27|Philip Morris Products S.A.|An aerosol generating system having means for handling consumption of a liquid substrate|
    EP2713779B1|2011-06-02|2019-05-08|Philip Morris Products S.a.s.|Combustible heat source for a smoking article|
    CN202407081U|2011-12-21|2012-09-05|刘秋明|Simulation cigarette|
    CN102754913B|2012-07-31|2014-06-11|龙功运|Blended additive for atomizing smoke after heating tobacco, using method thereof and tobacco composite thereof|
    US20140083155A1|2012-09-24|2014-03-27|The Boeing Company|Compliant Layer for Matched Tool Molding of Uneven Composite Preforms|
    TWI666992B|2014-05-21|2019-08-01|瑞士商菲利浦莫里斯製品股份有限公司|Aerosol-generating system and cartridge for usein the aerosol-generating system|US5272453A|1992-08-03|1993-12-21|Motorola Inc.|Method and apparatus for switching between gain curves of a voltage controlled oscillator|
    GB201217067D0|2012-09-25|2012-11-07|British American Tobacco Co|Heating smokable material|
    CN106659857A|2014-01-31|2017-05-10|卡纳科普有限公司|Methods and apparatus for producing herbal vapor|
    GB2546921A|2014-11-11|2017-08-02|Jt Int Sa|Electronic vapour inhalers|
    GB201511359D0|2015-06-29|2015-08-12|Nicoventures Holdings Ltd|Electronic vapour provision system|
    GB201511358D0|2015-06-29|2015-08-12|Nicoventures Holdings Ltd|Electronic aerosol provision systems|
    US20170055575A1|2015-08-31|2017-03-02|British American TobaccoLimited|Material for use with apparatus for heating smokable material|
    US20170055574A1|2015-08-31|2017-03-02|British American TobaccoLimited|Cartridge for use with apparatus for heating smokable material|
    GB2543329B|2015-10-15|2018-06-06|Jt Int Sa|A method for operating an electronic vapour inhaler|
    US10582726B2|2015-10-21|2020-03-10|Rai Strategic Holdings, Inc.|Induction charging for an aerosol delivery device|
    US20170119047A1|2015-10-30|2017-05-04|British American TobaccoLimited|Article for Use with Apparatus for Heating Smokable Material|
    US20170119050A1|2015-10-30|2017-05-04|British American TobaccoLimited|Article for Use with Apparatus for Heating Smokable Material|
    US10820630B2|2015-11-06|2020-11-03|Rai Strategic Holdings, Inc.|Aerosol delivery device including a wirelessly-heated atomizer and related method|
    US10104912B2|2016-01-20|2018-10-23|Rai Strategic Holdings, Inc.|Control for an induction-based aerosol delivery device|
    JP6876716B2|2016-04-11|2021-05-26|フィリップ・モーリス・プロダクツ・ソシエテ・アノニム|Aerosol-generating articles|
    JP6409025B2|2016-06-20|2018-10-17|株式会社ステップ・ケイ・スリー|Smokeless electronic cigarette|
    US20190239555A1|2016-06-29|2019-08-08|British American TobaccoLimited|Article for use with apparatus for heating smokable material|
    SG11201901685WA|2016-09-01|2019-03-28|Philip Morris Products Sa|Susceptor assembly and aerosol-generating article comprising the same|
    US10524508B2|2016-11-15|2020-01-07|Rai Strategic Holdings, Inc.|Induction-based aerosol delivery device|
    WO2018099665A1|2016-11-29|2018-06-07|Philip Morris Products S.A.|Vaporizer for an aerosol-generating system and vaporizing method|
    AR111393A1|2017-03-31|2019-07-10|Philip Morris Products Sa|MULTI-PAPER SUSCEPTOR UNIT TO HEAT BY INDUCTION AN AEROSOL FORMER SUBSTRATE|
    GB201705206D0|2017-03-31|2017-05-17|British American TobaccoLtd|Apparatus for a resonance circuit|
    EP3634163B1|2017-06-08|2021-04-07|Philip Morris Products S.a.s.|Cartridge having a susceptor material|
    RU2765097C2|2017-08-09|2022-01-25|Филип Моррис Продактс С.А.|Aerosol-generating apparatus with a flat inductance coil|
    US20200367565A1|2017-08-09|2020-11-26|Philip Morris Products S.A.|Aerosol-generating device having an elastic susceptor|
    JP6902620B2|2017-08-09|2021-07-14|フィリップ・モーリス・プロダクツ・ソシエテ・アノニム|Aerosol generation system with multiple inductor coils|
    CN111372480A|2017-11-30|2020-07-03|菲利普莫里斯生产公司|Cartridge with internal surface receptor material|
    CN111565584A|2017-12-29|2020-08-21|Jt国际公司|Inductively heatable consumable for aerosol generation|
    US11019850B2|2018-02-26|2021-06-01|Rai Strategic Holdings, Inc.|Heat conducting substrate for electrically heated aerosol delivery device|
    WO2020020950A1|2018-07-26|2020-01-30|Philip Morris Products S.A.|Device for generating an aerosol|
    JP2021532797A|2018-08-01|2021-12-02|フォンテム ホールディングス １ ビー． ブイ．|Heated smoking device|
    BR112021005003A2|2018-09-25|2021-06-08|Philip Morris Products S.A.|heating assembly and method for inductively heating an aerosol-forming substrate|
    法律状态:
    2020-02-18| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2021-06-08| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2021-07-20| B350| Update of information on the portal [chapter 15.35 patent gazette]|
    2021-08-03| B350| Update of information on the portal [chapter 15.35 patent gazette]|
    2021-08-17| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 21/05/2015, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    EP14169192.3|2014-05-21|
    EP14169192|2014-05-21|
    PCT/EP2015/061217|WO2015177263A1|2014-05-21|2015-05-21|Aerosol-forming substrate and aerosol-delivery system|
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