EP4173506B1 - Capsule comprenant un matériau commutable par la lumière pour un dispositif de génération d'aérosol et dispositif de génération d'aérosol comprenant cette capsule - Google Patents

Capsule comprenant un matériau commutable par la lumière pour un dispositif de génération d'aérosol et dispositif de génération d'aérosol comprenant cette capsule Download PDF

Info

Publication number
EP4173506B1
EP4173506B1 EP21205538.8A EP21205538A EP4173506B1 EP 4173506 B1 EP4173506 B1 EP 4173506B1 EP 21205538 A EP21205538 A EP 21205538A EP 4173506 B1 EP4173506 B1 EP 4173506B1
Authority
EP
European Patent Office
Prior art keywords
light
aerosol
pod
generating device
porous wick
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP21205538.8A
Other languages
German (de)
English (en)
Other versions
EP4173506A1 (fr
Inventor
Jaakko MCEVOY
Christoph Lungenschmied
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JT International SA
Original Assignee
JT International SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by JT International SA filed Critical JT International SA
Priority to EP21205538.8A priority Critical patent/EP4173506B1/fr
Priority to PCT/EP2022/080072 priority patent/WO2023073097A1/fr
Publication of EP4173506A1 publication Critical patent/EP4173506A1/fr
Application granted granted Critical
Publication of EP4173506B1 publication Critical patent/EP4173506B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/44—Wicks
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/10—Devices using liquid inhalable precursors
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/48—Fluid transfer means, e.g. pumps
    • A24F40/485—Valves; Apertures

Definitions

  • the present invention relates to a pod including a light-switchable material for an aerosol-generating device, in particular an electronic cigarette, vaporizer or e-vapor pod system, and an aerosol-generating device comprising said pod.
  • Aerosol-generating devices such as electronic cigarettes or "e-cigarettes” as they are also known, have gained in popularity over the past ten years as an alternative to traditional smoking articles, like cigarettes, cigars, and cigarillos. Developments in the design and configuration of such aerosol generating devices or vaporizer devices are ongoing to improve their performance and their reliability, as well as their ease of production and their production costs.
  • Conventional aerosol generating devices usually include an atomizer such as a heater, a power supply (e.g. an electrical power source) and a pod comprising a wick and a reservoir that contains flavored e-liquid.
  • a power supply e.g. an electrical power source
  • a pod comprising a wick and a reservoir that contains flavored e-liquid.
  • the e-liquid can be volatized using the heater and transferred to a user of the aerosol generating device in an airflow, which is preferably guided through a mouthpiece of the device.
  • pods are conventionally provided.
  • the flow of e-liquid through the wicking material in e-cigarettes must be sufficient to avoid dry puffs.
  • permeation of the e-liquid through the wicking material of the pod will contribute to undesired leakage of the e-liquid as it does not evaporate when the e-cigarette is not in use, in particular during storage and transit.
  • WO 2015/070405 A1 relates to an atomizer for an electronic cigarette comprising an oil-storage mechanism and an atomizing component.
  • a cigarette oil flowing channel is used for supplying cigarette oil stored within the oil-storage mechanism to the atomizing component.
  • a hot-melt sealing structure is used for sealing the cigarette oil flowing channel before using the atomizer for the first time. When using the electronic cigarette for the first time and powering on the atomizing component for the first time, the hot-melt sealing structure is heated and melted to open the cigarette oil flowing channel, thus allowing the cigarette oil to be supplied to the atomizing component.
  • leakage can only be prevented before the electronic cigarette is used for the first time. Once the hot-melt sealing structure is melted, it cannot reseal the cigarette oil flowing channel and leakage can occur during long periods of not using the electronic cigarette.
  • WO 2020/070109 A1 concerns a liquid supply system such as a cartridge (pod) for use with aerosol-generating devices, which includes a liquid substrate in a retention material, a liquid flow channel extending from the liquid retention material and a barrier layer disposed in the liquid flow channel.
  • the barrier layer that is included in the cartridge prevents premature transfer of the liquid substrate into the airflow passage.
  • the barrier degrades at elevated temperature and allows transfer of the liquid substrate into the liquid flow channel.
  • leakage can likewise be prevented only before the aerosol-generating device is used for the first time. Once the barrier layer is degraded, it cannot reseal the liquid flow channel and leakage can occur during long periods of not using the aerosol-generating device.
  • a pod for an aerosol-generating device which can prevent leakage of an aerosol-generating liquid material (e-liquid) during transit and storage before the aerosol-generating device is used for the first time and also afterwards, during long periods of not using the aerosol-generating device.
  • e-liquid aerosol-generating liquid material
  • a pod (1) for an aerosol-generating device comprising a porous wick (2); a reservoir (3) including a discharge opening (4) for an aerosol-generating liquid material; and at least one light emitting source (6), wherein the porous wick (2) is coated with a light-switchable layer (7) on a surface thereof sealing the discharge opening (4) of the reservoir (3) so that the light-switchable layer (7) is arranged between the discharge opening (4) of the reservoir (3) and the porous wick (2), wherein the light-switchable layer (7) comprises an amphiphilic inorganic material being hydrophobic and impermeable for an aerosol-generating liquid material in the dark and becoming hydrophilic and permeable for an aerosol-generating liquid material when exposed to light, and wherein the at least one light emitting source (6) is configured to illuminate the light-switchable layer (7).
  • the present invention also refers to an aerosol-generating device comprising a pod as described above. Preferable embodiments of the invention are indicated in the following description
  • a core idea of the present invention lies in a pod for an aerosol-generating device, which allows for the flow of the e-liquid to be selectively switched on so that the e-liquid can be supplied to the heating element when the pod is in use.
  • This is achieved by including a light-switchable layer in the pod, which coats a porous wick and is arranged so that a discharge opening of a reservoir including the e-liquid is sealed.
  • the light-switchable layer Before being exposed to light, the light-switchable layer is hydrophobic and impermeable for the e-liquid, thus preventing leakage of the e-liquid during storage or transit in non-use periods.
  • the light-switchable layer When in use, the light-switchable layer is exposed to light whereupon it becomes hydrophilic and permeable for the e-liquid, which can then be supplied via the porous wick to the heating element and vaporized. During subsequent long periods of storage or transportation without illuminating the light-switchable layer, it again becomes hydrophobic and impermeable to the e-liquid, thus preventing leakage of the reservoir filled with the e-liquid.
  • the wicking rate from fully off to fully on may be controlled, as the wicking only is switched on when the light-switchable layer is illuminated.
  • aerosol-generating liquid material is interchangeably used with the term “e-liquid” and refers to the liquid material from which the aerosol is created in an aerosol-generating device using for example a vaporizer, an atomizer, a nebulizer or a heating element.
  • aerosol-generating device refers to a device that can generate an aerosol for inhalation, such as an electronic cigarette, a vaporizing device, a nebulizing device, an e-vapor pod system or an inhalation device.
  • light-switchable material refers to an amphiphilic inorganic material being hydrophobic and impermeable for an aerosol-generating liquid material in the dark and becoming hydrophilic and permeable for an aerosol-generating liquid material when being exposed to light.
  • This liquid permeation switching is valuable in e-vapor pod systems where the porous wicking media is desired to be in an OFF state when in storage/transit but need to rapidly switch to an operational ON state when in use, i.e. when illuminated. This helps reducing leakage risks during storage and transport.
  • amphiphilic means that the material may be both, oleophilic (which may interchangeably be used with hydrophobic) and hydrophilic depending on the conditions applied. Such amphiphilic materials may be temperature or light dependent, for example.
  • the light-switchable material is an amphiphilic inorganic material, which is hydrophobic in the dark and becomes hydrophilic when exposed to light.
  • hydrophobic refers to materials exhibiting a large water contact angle of at least 60° and the term “hydrophilic” refers to materials exhibiting a small water contact angle of less than 60°.
  • the light-switchable material of the present invention is hydrophobic in the dark having a water contact angle of 90° or more. More preferably, the light-switchable material of the present invention is "superhydrophobic", meaning that it has a water contact angle of 150° or more in the dark.
  • the light-switchable material of the present invention is hydrophilic when exposed to light having a water contact angle of 10° or less. More preferably, the light-switchable material is "superhydrophilic", meaning that it has a water contact angle of 1° or less when exposed to light.
  • porous wick refers to a wicking material having a porosity of 30 to 60%, and preferably 40 to 50%, wherein the porosity is a fraction of the volume of voids over the total volume of the wicking material.
  • the porosity can be measured by microscope image analysis.
  • the porous wick has a vapor channel structure (10) as shown in Figure 3 of the present invention.
  • the term "light emitting source” refers to a source capable of emitting light.
  • the emitted light has a wavelength in the range of 350 to 450 nm, more preferably in the range of 365 to 405 nm.
  • the light emitting source is an UV light emitting diode.
  • the present invention relates to a pod (1) for an aerosol-generating device, which comprises a porous wick (2) and a reservoir (3).
  • the reservoir (3) includes a discharge opening (4), through which an aerosol-generating liquid material (e-liquid) can be discharged when using the aerosol-generating device.
  • the porous wick (2) is coated with a light-switchable layer (7) on that surface of the porous wick (2) that seals the discharge opening (4) of the reservoir.
  • the light-switchable layer (7) is arranged between the discharge opening (4) of the reservoir (3) and the porous wick (2) and forms a hydrophobic barrier preventing the e-liquid to permeate into the porous wick (2) when the pod (1) is not in use, i.e. during storage and transportation, thus avoiding leakage.
  • a light emitting source (6) emits light to the light-switchable layer (7), whereby the properties of the light-switchable layer (7) are switched so that it becomes hydrophilic. Once the light-switchable layer (7) is in the hydrophilic state, the e-liquid can permeate into the porous wick (2) and be subsequently vaporized.
  • the light-switchable layer (7) used in the present invention is made of an amphiphilic inorganic material, which is impermeable for an aerosol-generating liquid material in the dark and which becomes permeable for an aerosol-generating liquid material when being exposed to light.
  • the present invention makes use of a switching mechanism based on illumination. That is, when illuminating the light-switchable layer (7) using the light emitting source (6), the wettability characteristics of the light-switchable layer (7) change. In particular, when illuminating the light-switchable layer (7), its hydrophobic properties are switched instantaneously to become hydrophilic. These hydrophilic properties of the light-switchable layer (7) are switched back to become hydrophobic and impermeable for the e-liquid when the pod (1) is not in use, such as during storage or transit.
  • the amphiphilic inorganic material is hydrophobic in the dark and becomes hydrophilic when exposed to ultraviolet (UV) light.
  • UV ultraviolet
  • the amphiphilic inorganic material according to the invention is not particularly limited, as long as it shows wettability characteristics that change with illumination.
  • Several materials showing such wettability characteristics that change with illumination have been reported (see, e.g. Wang et al., "light-induced amphiphilic surfaces", Nature, 388 (1997 ); Roach et al., "Progress in superhydrophobic surface development", Soft Matter, 4, (2008), 224-240 ).
  • the first report of an inorganic material showing reversible switching between hydrophobic and hydrophilic (to even superhydrophobic and superhydrophilic) states made use of ZnO. Also, TiO 2 and SnO 2 were reported to show reversible switching properties between (super)hydrophobic and (super)hydrophilic states.
  • the amphiphilic inorganic material preferably is at least one selected from the group consisting of TiO 2 , ZnO and SnO 2 .
  • the switch in liquid permeation occurs due to the change from hydrophobic to hydrophilic with virtually no transition period. It is generally considered that the hydrophobic to hydrophilic switch occurs due to creation of free electrons or holes on the material surface.
  • the amphiphilic inorganic material more preferably is at least one selected from the group consisting of TiO 2 nanoparticles, ZnO nanoparticles and SnO 2 nanoparticles.
  • the amphiphilic inorganic material is selected from the group consisting of TiO 2 nanoparticles and SnO 2 nanoparticles, because ZnO is reported to be more unstable in UV light compared to these two materials.
  • the amphiphilic inorganic material is at least one selected from the group consisting of TiO 2 nano-rods, ZnO nano-rods and SnO 2 nano-rods. It has been reported that ZnO films made of ZnO nanorods have the advantage that they display superhydrophobicity even if they are sparsely spread over the surface. However, since photo-corrosion may occur, with ZnO being more unstable in UV light compared to other photocatalytic metal oxides such as TiO 2 or SnO 2 , the amphiphilic inorganic material according to the present invention particularly preferably is selected from TiO 2 nano-rods and SnO 2 nano-rods.
  • the thickness of the light-switchable layer (7) in a pod (1) according to the invention is not particularly limited.
  • the thickness of the layer is between 10 nm to 100 pm, more preferably between 100 nm and 50 pm, even more preferably between 200 nm and 10 pm, and particularly preferably between 500 nm and 1 pm.
  • the pod (1) comprises at least one light emitting source (6), and preferably comprises two or more light emitting sources (6).
  • the light emitting source (6) is not particularly limited as long as it is configured to illuminate the light-switchable layer (7) by direct illumination and/or by reflection of the emitted light from the sidewall (8) of the reservoir (3).
  • the at least one light emitting source (6) is arranged to illuminate the light-switchable layer (7) by emitting light through the reservoir (3) of the pod (1).
  • the light emitting source (6) emits light with a wavelength in the range of 350 to 450 nm, more preferably in the range of 365 to 405 nm from the viewpoint of improved switching properties of the light-switchable material.
  • the pod (1) comprises at least one light emitting source (6), which is an UV light emitting diode.
  • the reservoir (3) comprises at least one UV transparent window (9).
  • the UV transparent window is particularly of advantage if polymers are used in the pod (1), whose transparency towards light in the above wavelengths is limited, which in turn may block a significant amount of light coming from the at least one light emitting source (6).
  • the UV light flux coming from the light emitting source (6) towards the light-switchable layer (7) may be enhanced.
  • the material of the window is not particularly limited as long as it is arranged to allow light, which is emitted by the at least one light emitting source (6), to reach the light-switchable layer (7) through the window (9).
  • the UV transparent window (9) is made of any one of glass, inorganic quarz, silicone elastomer, acrylic polymer, polycarbonate (PC), polyethylene terephthalate (PET) and cyclic olefin copolymers (COC) from the viewpoint of having high transparency properties.
  • the porous wick (2) used in the pod (1) of the invention can be made entirely from one material or from a composite material.
  • the porous wick can for example be made of ceramic, silica or cotton.
  • a ceramic wick is preferable from the viewpoint of providing excellent mechanical properties, particularly in terms of rigidity. Ceramic wicks are, for example, not influenced by compression like cotton wicks. Furthermore, ceramic is a stable, inert and cheap material, which is mass producible.
  • the pod (1) of the present invention may further comprise an airflow channel (5).
  • Air can enter the pod (1) through an inlet (5a) of the airflow channel (5), is guided through the porous wick (2) and/or along a surface of the porous wick (2) and exits the pod (1) through an outlet (5b) of the airflow channel (5).
  • the design and position of the airflow channel (5) is not particularly limited. It may, for instance, be centered in the pod and have a tubular shape, wherein the porous wick (2), usually having a rod shape, is centered in the air flow channel (5), thereby forming two separate open areas (12) between two opposite sidewall surfaces (2a) of the porous wick (2) and the wall of the air flow channel (5), respectively.
  • air may flow from the airflow inlet (5a) through the porous wick (2) and/or along a sidewall surface (2a) of the porous wick (2) facing the wall of the tubular airflow channel (5) to the airflow outlet (5b), i.e. from the bottom to the top as shown in e.g. Figures 1(a) and 1(b) .
  • the airflow channel (5) may be designed such that it is guided through the porous wick (2) as shown in Figures 6 and 7 or along a bottom surface (2b) of the porous wick (2) as shown in e.g.
  • the porous wick (2) may have a vapor channel structure (10) forming vapor channels (10a) on that surface of the porous wick (2) along which air is guided.
  • This vapor channel structure (10) increases the evaporation surface of the porous wick (2), thereby allowing for airflow control and vaporization rate control.
  • the direction of the vapor channels (10a) is not particularly limited. Preferably, the channels run parallel to the airflow. For example, as shown in Figures 2 , 4 and 5 , the direction of the vapor channels (10a) is parallel to the direction of the air which is guided along the bottom surface (2b) of the porous wick (2).
  • the vapor channel structure (10) can have a geometrical structure selected from the group consisting of pin fins, rectangular channels, circular channels, re-entrant cavities and flow mixer structures.
  • the pod (1) according to the invention may further comprise a heat transfer material layer (11) and a planar heating element (14).
  • the heat transfer material layer (11) may be arranged adjacent to a surface of the porous wick (2) along which the air is guided. This configuration may enhance heat supply to the porous wick (2), thereby reducing the time of commissioning.
  • the aerosol-generating device of the present invention comprises the pod (1) according to the invention.
  • the device further comprises a heater unit for vaporizing the e-liquid.
  • the at least one light-emitting source (6) is switched on, thereby illuminating the light-switchable layer (7) of the pod, and thus initiating the light-induced wettability change of the layer (7).
  • This allows the porous wick (2) to be saturated with the e-liquid at a controlled wicking rate from fully off to fully on, since the wicking only is switched on once the light-switchable layer (7) is illuminated by the light emitting source (6).
  • the heater unit distributes heat to the saturated porous wick (2), thereby vaporizing the e-liquid.
  • the heater unit can be provided separately from the pod (1) in a heater-in-device-configuration or can be provided integrally with the pod (1).
  • FIG. 1(a) shows a pod (1) according to an embodiment of the invention.
  • the pod (1) includes an e-liquid reservoir (3) and a porous wick (2) having a rod shape that is coated with a light-switchable layer (7) on the surface sealing a discharge opening (4) of the reservoir (3).
  • the light-switchable layer (7) is impermeable to the e-liquid, and thus prevents it from leaking out.
  • the pod (1) further comprises a light emitting source (6), which is arranged to illuminate the light-switchable layer (7) when the pod is used so that the light-switchable layer (7) becomes permeable for the e-liquid that can then permeate into the porous wick (2) and be subsequently vaporized.
  • the pod (1) has two light emitting sources (6) and further includes an airflow channel (5) including an airflow inlet (5a) and an airflow outlet (5b).
  • the airflow channel (5) contains a chimney part having a tubular shape, in which the porous wick (2) is centered allowing for the formation of two separate open areas (12) between two opposite sidewall surfaces (2a) of the porous wick (2) and the wall of the tubular air flow channel (5) (shown in Figure 1(a) , Top view). Furthermore, the pod (1) comprises a heater track (13) that distributes heat to the porous wick (2). When in use, air can enter the airflow inlet (5a) at ambient pressure, be guided through the porous wick (2) and/or along the two opposite sidewall surfaces (2a) of the porous wick (2) where it is supplied with the vaporized e-liquid to form an e-vapor, and exit the airflow outlet (5b) as e-vapor.
  • the pod (1) of Figure 1(a) can further comprise a UV transparent window (9) arranged to allow the light emitting source (6) to illuminate the light-switchable layer (7) by emitting light through the window (9) .
  • FIG. 2 shows a pod (1) according to another embodiment of the invention.
  • the pod (1) includes an e-liquid reservoir (3) and a porous wick (2) that is coated with a light-switchable layer (7) on the surface sealing a discharge opening (4) of the reservoir (3).
  • the pod (1) includes an airflow channel (5) including an airflow inlet (5a) and an airflow outlet (5b), whereby air is guided along a bottom surface (2b) of the porous wick (2).
  • airflow inlet (5a) at ambient pressure
  • the porous wick (2) When in use, air can enter the airflow inlet (5a) at ambient pressure, be guided along the bottom surface (2b) of the porous wick (2) where it is supplied with the vaporized e-liquid to form an e-vapor, and exit the airflow outlet (5b) as e-vapor.
  • the porous wick (2) has a vapor channel structure (10) for achieving a preferable airflow and vaporization rate.
  • the pod (1) further comprises a heat transfer material layer (11) arranged adjacent to the bottom surface (2b) of the porous wick (2) along which the air is guided.
  • the heat transfer material layer (8) is in contact with a planar heating element (14).
  • Figure 3 shows a schematic view of a porous wick (2) having a vapor channel structure (10) for controlling the airflow and the vaporization rate.
  • Figure 4 shows a schematic view of a section of pod (1) according to the embodiment shown in Figure 2 during OFF state, i.e. during a non-use period.
  • the surface of the porous wick (2) that seals the discharge opening (4) of the e-liquid reservoir (3) is coated with the light-switchable layer (7).
  • the hydrophobic properties render the light-switchable layer (7) impermeable to the e-liquid and the porous wick (2) is kept dry.
  • the light-switchable layer (7) forms a barrier layer so that the e-liquid cannot permeate into the dry porous wick (2) and leakage is prevented.
  • Figure 5 shows a schematic view of a section of pod (1) according to the embodiment shown in Figure 2 during ON state, i.e. during use.
  • the light emitting source (6) is in the on state
  • light from the light emitting source (6) is transmitted by direct illumination and/or by reflection of the emitted light from a reservoir sidewall (8) to the light-switchable material (7) as shown in Figure 3 .
  • the properties of the light-switchable layer (7) switch to become hydrophilic so that the e-liquid can permeate through the light-switchable layer (7) into the porous wick (2) to form a saturated porous wick (2) and be subsequently vaporized.
  • FIG 6 shows a schematic view according to Figure 4 , wherein the porous wick (2) has no vapor channel structure (10). In this embodiment, air flows through the porous wick as indicated by the arrow showing the air flow.
  • FIG 7 shows a schematic view according to Figure 5 , wherein the porous wick (2) has no vapor channel structure (10). In this embodiment, air flows through the porous wick as indicated by the arrow showing the air flow.

Landscapes

  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)

Claims (15)

  1. Capsule (1) pour un dispositif générateur d'aérosol comprenant
    une mèche poreuse (2) ;
    un réservoir (3) incluant une ouverture d'évacuation (4) pour un matériau liquide générateur d'aérosol ; et
    au moins une source électroluminescente (6),
    dans laquelle la mèche poreuse (2) est recouverte d'une couche commutable par la lumière (7) sur une surface de celle-ci scellant l'ouverture d'évacuation (4) du réservoir (3) de sorte que la couche commutable par la lumière (7) est agencée entre l'ouverture d'évacuation (4) du réservoir (3) et la mèche poreuse (2),
    dans laquelle la couche commutable par la lumière (7) comprend un matériau inorganique amphiphile qui est hydrophobe et imperméable à un matériau liquide générateur d'aérosol dans l'obscurité et qui devient hydrophile et perméable à un matériau liquide générateur d'aérosol lorsqu'il est exposé à la lumière, et
    dans laquelle l'au moins une source électroluminescente (6) est configurée pour éclairer la couche commutable par la lumière (7).
  2. Capsule (1) pour un dispositif générateur d'aérosol selon la revendication 1, dans laquelle le matériau inorganique amphiphile est hydrophobe dans l'obscurité et devient hydrophile lorsqu'il est exposé à une lumière ultraviolette (UV).
  3. Capsule (1) pour un dispositif générateur d'aérosol selon la revendication 1 ou la revendication 2, dans laquelle le matériau inorganique amphiphile est au moins un matériau choisi dans le groupe constitué de TiO2, ZnO et SnO2.
  4. Capsule (1) pour un dispositif générateur d'aérosol selon la revendication 3, dans laquelle le matériau inorganique amphiphile est au moins un matériau choisi dans le groupe constitué de nanoparticules de TiO2, de nanoparticules de ZnO et de nanoparticules de SnO2.
  5. Capsule (1) pour un dispositif générateur d'aérosol selon l'une quelconque des revendications 1 à 4, dans laquelle la couche commutable par la lumière (7) présente une épaisseur de 10 nm à 100 µm.
  6. Capsule (1) pour un dispositif générateur d'aérosol selon l'une quelconque des revendications 1 à 5, dans laquelle l'au moins une source électroluminescente (6) est configurée pour éclairer la couche commutable par la lumière (7) par éclairage direct et/ou par réflexion de la lumière émise depuis une paroi latérale du réservoir (8).
  7. Capsule (1) pour un dispositif générateur d'aérosol selon l'une quelconque des revendications 1 à 6, dans laquelle l'au moins une source électroluminescente (6) émet une lumière avec une longueur d'onde comprise dans la plage de 350 à 450 nm, de préférence dans la plage de 365 à 405 nm.
  8. Capsule (1) pour un dispositif générateur d'aérosol selon l'une quelconque des revendications 1 à 7, dans laquelle l'au moins une source électroluminescente (6) est une diode électroluminescente UV.
  9. Capsule (1) pour un dispositif générateur d'aérosol selon l'une quelconque des revendications 1 à 8, dans laquelle l'au moins une source électroluminescente (6) est agencée pour éclairer la couche commutable par la lumière (7) en émettant de la lumière à travers le réservoir (3).
  10. Capsule (1) pour un dispositif générateur d'aérosol selon la revendication 9, dans laquelle le réservoir (3) comprend au moins une fenêtre (9) transparente aux UV agencée pour permettre à l'au moins une source électroluminescente (6) d'éclairer la couche commutable par la lumière (7) en émettant de la lumière à travers la fenêtre (9).
  11. Capsule (1) pour un dispositif générateur d'aérosol selon la revendication 10, dans laquelle la fenêtre (9) transparente aux UV est constituée de l'un quelconque parmi le verre, le quartz inorganique, l'élastomère de silicone, le polymère acrylique, le polycarbonate (PC), le polyéthylène téréphtalate (PET) et les copolymères d'oléfines cycliques (COC).
  12. Capsule (1) pour un dispositif générateur d'aérosol selon l'une quelconque des revendications 1 à 11, dans laquelle la mèche poreuse (2) est constituée de céramique, de silice ou de coton.
  13. Capsule (1) pour un dispositif générateur d'aérosol selon l'une quelconque des revendications 1 à 12, comprenant en outre un canal d'écoulement d'air (5) configuré pour permettre à l'air de pénétrer dans la capsule (1) à travers une entrée (5a), d'être guidé à travers la mèche poreuse (2) et/ou le long d'une surface de la mèche poreuse (2) et de sortir de la capsule (1) à travers une sortie (5b).
  14. Capsule (1) pour un dispositif générateur d'aérosol selon l'une quelconque des revendications 1 à 13, dans laquelle, lorsque l'air est guidé le long de la surface de la mèche poreuse (2), la mèche poreuse (2) présente une structure (10) de canaux de vapeur formant des canaux de vapeur (10a) sur la surface de la mèche poreuse (2) le long de laquelle l'air est guidé.
  15. Dispositif générateur d'aérosol comprenant la capsule (1) telle que définie dans l'une quelconque des revendications 1 à 14.
EP21205538.8A 2021-10-29 2021-10-29 Capsule comprenant un matériau commutable par la lumière pour un dispositif de génération d'aérosol et dispositif de génération d'aérosol comprenant cette capsule Active EP4173506B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP21205538.8A EP4173506B1 (fr) 2021-10-29 2021-10-29 Capsule comprenant un matériau commutable par la lumière pour un dispositif de génération d'aérosol et dispositif de génération d'aérosol comprenant cette capsule
PCT/EP2022/080072 WO2023073097A1 (fr) 2021-10-29 2022-10-27 Dosette comprenant un matériau commutable à la lumière pour un dispositif de génération d'aérosol et dispositif de génération d'aérosol comprenant celle-ci

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP21205538.8A EP4173506B1 (fr) 2021-10-29 2021-10-29 Capsule comprenant un matériau commutable par la lumière pour un dispositif de génération d'aérosol et dispositif de génération d'aérosol comprenant cette capsule

Publications (2)

Publication Number Publication Date
EP4173506A1 EP4173506A1 (fr) 2023-05-03
EP4173506B1 true EP4173506B1 (fr) 2024-03-20

Family

ID=78414499

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21205538.8A Active EP4173506B1 (fr) 2021-10-29 2021-10-29 Capsule comprenant un matériau commutable par la lumière pour un dispositif de génération d'aérosol et dispositif de génération d'aérosol comprenant cette capsule

Country Status (2)

Country Link
EP (1) EP4173506B1 (fr)
WO (1) WO2023073097A1 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105722411B (zh) 2013-11-13 2019-05-17 吉瑞高新科技股份有限公司 雾化器、电子烟及其供油控制方法
ES2810304T3 (es) * 2016-04-22 2021-03-08 Jt Int Sa Dispositivo de generación de aerosol con un láser
CN206808673U (zh) * 2017-04-24 2017-12-29 深圳市合元科技有限公司 具有过热保护功能的雾化器、电子烟以及气雾生成部件
KR102520341B1 (ko) 2018-10-03 2023-04-11 필립모리스 프로덕츠 에스.에이. 에어로졸 발생 장치에 사용하기 위한 액체 공급 시스템
EP3860377B1 (fr) * 2018-10-03 2023-06-21 Philip Morris Products S.A. Système d'alimentation en liquide destiné à être utilisé dans des dispositifs générateurs d'aérosol

Also Published As

Publication number Publication date
EP4173506A1 (fr) 2023-05-03
WO2023073097A1 (fr) 2023-05-04

Similar Documents

Publication Publication Date Title
JP7157224B2 (ja) レーザによるエアロゾル生成装置
US5976503A (en) Disposable plug-in air freshener with heat activated cartridge
RU2756888C2 (ru) Генерирующее аэрозоль изделие, имеющее индикатор израсходования жидкости
CA2500563C (fr) Systeme d'amenee muni d'une meche comprenant des parties a porosite differente
US5945094A (en) Disposable plug-in dispenser for use with air freshener and the like
KR100468116B1 (ko) 이중 기능 분배기
JP2006525856A (ja) 揮発性物質を分配するための器具及びシステム
US20070176015A1 (en) System for delivering volatile materials
BRPI0709664A2 (pt) dispensador de material volátil
US20060043619A1 (en) Powered dispensing devices for the delivery of evaporable materials
WO1992012802A1 (fr) Distributeur a fonctionnement continu ou instantane
CN1426313A (zh) 夜灯式空气清新器
CA3142706A1 (fr) Ensemble amovible pour un appareil diffuseur
US11758948B2 (en) Lighting unit for aerosol-generating systems
US20230389617A1 (en) Lighting unit for aerosol-generating systems
CN114929040A (zh) 用于使组合物蒸发的模块化蒸发器系统和方法
EP4173506B1 (fr) Capsule comprenant un matériau commutable par la lumière pour un dispositif de génération d'aérosol et dispositif de génération d'aérosol comprenant cette capsule
US20110303760A1 (en) Apparatus and method for controllably releasing a substance
WO2000076645A1 (fr) Dispositif automatique et cyclique d'apport de fluide et processus associe
BRPI0419160B1 (pt) dispositivo vaporizador de duas fases
WO2023073098A1 (fr) Dosette incluant un matériau commutable en température pour un dispositif de génération d'aérosol et dispositif de génération d'aérosol comprenant celle-ci
JP2008245691A (ja) 消臭装置

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20230525

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20231019

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20231221

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602021010630

Country of ref document: DE