WO2017115188A1 - Extincteur pour article de génération d'aérosol - Google Patents

Extincteur pour article de génération d'aérosol Download PDF

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Publication number
WO2017115188A1
WO2017115188A1 PCT/IB2016/057456 IB2016057456W WO2017115188A1 WO 2017115188 A1 WO2017115188 A1 WO 2017115188A1 IB 2016057456 W IB2016057456 W IB 2016057456W WO 2017115188 A1 WO2017115188 A1 WO 2017115188A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat source
aerosol generating
generating article
aerosol
combustible heat
Prior art date
Application number
PCT/IB2016/057456
Other languages
English (en)
Inventor
Ali Murat SAYGILI
Noori Moyad BRIFCANI
Judith Waller
Original Assignee
Philip Morris Products S.A.
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 Philip Morris Products S.A. filed Critical Philip Morris Products S.A.
Publication of WO2017115188A1 publication Critical patent/WO2017115188A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D1/00—Cigars; Cigarettes
    • A24D1/10—Cigars; Cigarettes with extinguishers
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D1/00—Cigars; Cigarettes
    • A24D1/22—Cigarettes with integrated combustible heat sources, e.g. with carbonaceous heat sources
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F42/00—Simulated smoking devices other than electrically operated; Component parts thereof; Manufacture or testing thereof
    • A24F42/60—Constructional details

Definitions

  • This disclosure relates to an aerosol generating article having a combustible heat source for heating an aerosol-forming substrate and an extinguisher disposed thereon.
  • a number of smoking articles in which tobacco is heated rather than combusted have been proposed in the art.
  • An aim of such 'heated' smoking articles is to reduce known harmful smoke constituents of the type produced by the combustion and pyrolytic degradation of tobacco in conventional cigarettes.
  • an aerosol is generated by the transfer of heat from a combustible heat source to a physically separate aerosol-forming substrate, for example containing tobacco.
  • the aerosol-forming substrate may be located within, around or downstream of the combustible heat source.
  • WO-A2- 2009/022232 discloses a smoking article comprising a combustible heat source, an aerosol- forming substrate downstream of the combustible heat source, and a heat-conducting element around and in contact with a rear portion of the combustible heat source and an adjacent front portion of the aerosol-forming substrate.
  • volatile compounds are released from the aerosol-forming substrate by heat transfer from the combustible heat source and entrained in air drawn through the smoking article. As the released compounds cool, they condense to form an aerosol that is inhaled by the user.
  • Aerosol generating articles which include a combustible fuel element or heat source may have a combustion zone or zone of heating that is larger, more dense, and not as readily extinguished by crushing or "stubbing out" the heat source, as compared to, for example a conventional cigarette, in which tobacco is burnt or combusted to heat and release volatile compounds from the tobacco.
  • Such aerosol generating articles may have a heat source that contains significantly more energy in the form of heat than found in the combustion zone of a conventional cigarette. Consequently, such aerosol generating articles may require more effort to extinguish or to remove heat to facilitate disposal.
  • an extinguisher for an aerosol generating article may conveniently extinguish a combustible heat source on demand. It would be desirable that this extinguisher allow for ignition and use of the combustible heat source as well as facilitating extinguishment of the combustible heat source by utilizing a conventional "stubbing out" motion. In addition, it would be desirable to provide an extinguisher that is simple to manufacture and use and which may be kept unobtrusively together with the aerosol generating article so as to avoid the need of having a separate element to extinguish the aerosol generating article following use.
  • an aerosol generating article extends from a proximal end to a distal end.
  • An aerosol-forming substrate is downstream of the combustible heat source.
  • the combustible heat source is a carbonaceous heat source.
  • a mouthpiece is downstream of the aerosol-forming substrate and positioned at the proximal end of the aerosol generating article.
  • a collapsible element surrounds a length of the combustible heat source.
  • the collapsible element is configurable in an open state and a collapsed state.
  • the collapsible element length in the open state is longer than a length in the collapsed state.
  • the collapsible element defines an airflow opening area in the open state and a reduced airflow opening area in the collapsed state.
  • the collapsible element has a proximal end fixed to the aerosol generating article and a distal end extending beyond the combustible heat source.
  • the collapsible element is fixed to an outer surface of the aerosol generating article.
  • the collapsible element may protect the heat source.
  • the collapsible element may modulate the amount of airflow to the combustible heat source. Applying a force to the distal end of the collapsible element reduces the length and permeability of the collapsible element. The reduction in length may facilitate extinguishment of the heat source.
  • the collapsible element may be applied to the aerosol generating article by the user and may be elastically collapsible and thus may be reusable.
  • the collapsible element may contain the heat source once it is extinguished.
  • Another aspect includes a method of extinguishing the aerosol generating article by applying a force against the distal end of the collapsible element to reduce a length of the collapsible element and reduce airflow to the combustible heat source and extinguish the combustible heat source.
  • applying a force to the collapsible element to reduce the length of the collapsible element and extinguish the heat source retains the "stubbing out" ritual associated with extinguishing a smoking article.
  • a combustible heat source for an aerosol generating article includes a carbonaceous element and a collapsible element surrounding the carbonaceous element and fixed to one end of the carbonaceous element.
  • the combustible heat source is a carbonaceous heat source.
  • the collapsible element is configurable in an open state and a reduced length collapsed state.
  • the collapsible element defines an airflow opening area in the open state and a reduced airflow opening area in the collapsed state.
  • the collapsible element has a proximal end fixed to the carbonaceous element and a distal end extending beyond the carbonaceous element in the open state.
  • the combustible heat source and attached collapsible element surrounding the carbonaceous element may be utilized as a replaceable component of an aerosol generating article.
  • aerosol-forming substrate refers to a substrate capable of releasing, upon heating, volatile compounds, which may form an aerosol.
  • the aerosols generated from aerosol- forming substrates of articles according to the invention may be visible or invisible and may include vapours (for example, fine particles of substances, which are in a gaseous state, that are ordinarily liquid or solid at room temperature) as well as gases and liquid droplets of condensed vapours.
  • Aerosol generating article comprise a proximal end through which, in use, an aerosol exits the aerosol generating article for delivery to a user.
  • the proximal end of the aerosol generating article may also be referred to as the mouth end.
  • a user draws on the proximal end of the aerosol generating article in order to inhale an aerosol generated by the aerosol generating article.
  • permeability refers to a percent of total surface area that is void space area.
  • carbonaceous refers to a material that comprises carbon.
  • T e term “carbon-based” refers to a material comprises primarily of carbon or at least about 50% carbon, by dry weight of material.
  • This disclosure relates to an aerosol generating article having a combustible heat source for heating an aerosol-forming substrate and a collapsible extinguisher.
  • the combustible heat source may be a carbonaceous heat source.
  • the collapsible extinguisher or element may surround a length of the combustible heat source.
  • the collapsible element may be configurable in an open state and a reduced length collapsed state. The collapsible element defines an airflow opening area in the open state and a reduced airflow opening area in the collapsed state.
  • the collapsible element has a first length in the open state that is longer than a second length in the collapsed state.
  • the collapsible element may reduce in length by at least about 10% or at least about 20% or at least about 30%.
  • the collapsible element may have a permeability of greater than about 70% or greater than about 80% in the open state.
  • the collapsible element may has a permeability of less than about 30% or less than about 20% in the collapsed state.
  • the collapsible element may be configurable to reduce its permeability by at least about 50% or at least about 75% or at least about 90%.
  • the collapsible element may also form a barrier that protects or contains the heat source.
  • the heat source may be shielded by the collapsible element until it has cooled to a temperature that may reduce or eliminate a potential risk associated with improper handling of the aerosol generating article.
  • the collapsible element may contain, at least, a substantial portion the combustible heat source even when the combustible heat source is crushed into a plurality of particles upon extinguishment.
  • the collapsible extinguisher or element may be fixed to the aerosol generating article having a combustible heat source during the assembly of the aerosol generating article.
  • the collapsible extinguisher may be fixed to the aerosol generating article by the consumer before utilizing the aerosol generating article.
  • the collapsible extinguisher or element may be configured to allow a flame to pass through the collapsible element in the open state and ignite the combustible heat source.
  • One or more openings through the collapsible extinguisher or element may be sufficient to allow a flame to ignite the combustible heat source.
  • the collapsible extinguisher or element may be permanently fixed to the aerosol generating article or combustible heat source. Alternatively the collapsible extinguisher may be repositionably fixed to the aerosol generating article.
  • the collapsible extinguisher may be fixed to the aerosol generating article or combustible heat source, for example, via a friction fit or with an adhesive or adhesive material.
  • the collapsible extinguisher or element may be a single use article. T e deformation of the collapsible element may be plastic in that on removal of the deformation force the deformed element retains its deformed shape.
  • the collapsible extinguisher may be resiliently collapsible or elastic and thus reusable to be fixed to another aerosol generating article to extinguish the combustible heat source on demand.
  • the collapsible extinguisher may be resiliently collapsible when a small force is applied and permanently collapsed when a greater force is applied to the collapsible extinguisher.
  • the collapsible extinguisher or element may be disposed about a length of the combustible heat source.
  • the collapsible extinguisher may extend the entire length of the combustible heat source and may extend at least about 1 mm, or at least about 2 mm, or at least about 3 mm, or at least about 4 mm beyond the distal end of the combustible heat source.
  • the collapsible extinguisher may be in coaxial or concentric relation with the combustible heat source.
  • the collapsible extinguisher is cylindrical and the combustible heat source is cylindrical.
  • the collapsible extinguisher may have an inner diameter that is substantially equal to the outer diameter of the combustible heat source.
  • the collapsible extinguisher may be spaced apart from the heat source a distance of less than about 0.5 mm or less than about 0.2 mm. In examples, the collapsible extinguisher may be spaced apart from the heat source at a greater distance, for example at least about 0.5 mm or at least about 1 mm. In examples the collapsible extinguisher may have an outer diameter that is substantially equal to the outer diameter of the aerosol generating article.
  • the collapsible extinguisher or element may be a tubular element co-axial with and surrounding the combustible heat source.
  • the collapsible extinguisher or element may be fixed to the aerosol generating article or combustible heat source at its proximal end, and freely extend beyond the combustible heat source at its distal end.
  • the distal end of the collapsible extinguisher or element may be open or closed.
  • the distal end may be closed with a solid layer of material.
  • the distal end is open and may include a ring element defining the open distal end.
  • the ring element may distribute the "stubbing out" force generally equally around the circumference of the collapsible extinguisher or element.
  • An open distal end may also facilitate igniting the combustible heat source by allowing a flame to pass through the open distal end and contact the combustible heat source.
  • the collapsible extinguisher or element may have a plurality of apertures or perforations through the thickness of the collapsible extinguisher or element.
  • the plurality of apertures or perforations allow air to flow into the combustible heat source.
  • the collapsible extinguisher or element is formed from a mesh layer or metal mesh layer that may be rigid and self-supporting.
  • the collapsible extinguisher or element may be configured as a spring element or a double helix element.
  • the collapsible extinguisher or element may be formed any material that may withstand temperatures of at least about 350 degrees Celsius or least about 500 degrees Celsius or least about 600 degrees Celsius and may be elastically or in-elastically deformed under pressure.
  • the collapsible extinguisher or element may be formed of a metal or ceramic material for example, stainless steel or aluminum.
  • the collapsible extinguisher or element may have a thickness in a range from 0.1 mm to about 1 mm, or from about 0.2 mm to about 1 mm.
  • the collapsible extinguisher or element may have a length in a range from about 10 mm to about 40 mm or from about 15 mm to about 30 mm.
  • This disclosure describes an aerosol generating article having a proximal end and a distal end, and includes a combustible heat source positioned at the distal end of the aerosol generating article, an aerosol-forming substrate downstream of the combustible heat source, a mouthpiece downstream of the aerosol-forming substrate and positioned at the proximal end of the aerosol generating article, and a collapsible element surrounding a length of the combustible heat source.
  • the combustible heat source is preferably a carbonaceous heat source having a carbon content of at least about 35 percent, more preferably of at least about 40 percent, most preferably of at least about 45 percent by dry weight of the combustible heat source.
  • the combustible heat source is a carbonaceous heat source
  • the combustible heat source may be formed from one or more suitable carbon-containing materials.
  • the combustible heat source may be a combustible carbon-based heat source having a carbon content of at least about 50 percent.
  • the combustible heat source may be a combustible carbon-based heat source having a carbon content of at least about 60 percent, or at least about 70 percent, or at least about 80 percent by dry weight of the combustible heat source.
  • One or more binders may be combined with the one or more carbon-containing materials to form the solid carbonaceous heat source.
  • the combustible heat source may comprise one or more organic binders, one or more inorganic binders or a combination of one or more organic binders and one or more inorganic binders.
  • the combustible heat source may comprise one or more additives in order to improve the properties of the combustible heat source.
  • Suitable additives include, but are not limited to, additives to promote consolidation of the combustible heat source (for example, sintering aids), additives to promote ignition of the combustible heat source (for example, oxidizers such as perchlorates, chlorates, nitrates, peroxides, permanganates, zirconium and combinations thereof), additives to promote combustion of the combustible heat source (for example, potassium and potassium salts, such as potassium citrate) and additives to promote decomposition of one or more gases produced by combustion of the combustible heat source (for example catalysts, such as CuO, Fe 2 0 3 and Al 2 0 3 ).
  • Combustible heat sources for aerosol generating articles and methods for producing such heat sources are known in the art and described in, for example, US-A-5,040
  • the combustible heat source or carbonaceous solid heat source may have an apparent density of between about 0.8 g/cm 3 and about 1.1 g/cm 3 .
  • the combustible solid heat source may have a mass of between about 300 mg and about 500 mg, more preferably of between about 400 mg and about 450 mg.
  • the combustible heat source may have a length of between about 7 mm and about 17 mm, more preferably of between about 7 mm and about 15 mm, most preferably of between about 7 mm and about 13 mm.
  • combustible heat sources may have a diameter of between about 5 mm and about 9 mm, more preferably of between about 7 mm and about 8 mm.
  • the term 'diameter' denotes the maximum dimension in the transverse direction of the combustible heat source or aerosol generating article.
  • the terms 'radial' and 'transverse' are used to describe the direction perpendicular to the longitudinal direction. That is, the direction perpendicular to the direction between the opposed front and rear faces of the combustible heat source and the proximal end and the opposed distal end of the aerosol generating article.
  • the combustible heat source may have a substantially uniform diameter.
  • the combustible heat source may alternatively be tapered such that the diameter of one of the front end face and the rear end face of the combustible heat source is greater than the diameter of the other of the front end face and the rear end face thereof.
  • combustible heat sources may be tapered such that the diameter of the rear end face of the combustible heat source is greater that the diameter of the front end face of the combustible heat source.
  • the combustible heat source may be substantially cylindrical.
  • the combustible heat source may be a cylindrical combustible heat source of substantially circular cross-section or of substantially elliptical cross-section.
  • the combustible heat source is a substantially cylindrical combustible heat source of substantially circular cross-section.
  • the combustible heat source is preferably a blind combustible heat source.
  • the term 'blind' describes a heat source that does not comprise any air flow channels that provide inhalation air to the aerosol-forming substrate.
  • heat transfer from the blind combustible heat source to the aerosol-forming substrate occurs primarily by conduction and heating of the aerosol-forming substrate by forced convection is minimized or reduced.
  • the lack of any airflow channels through the blind combustible heat source advantageously substantially prevents or inhibits activation of combustion of the blind combustible heat source during puffing by a user. This substantially prevents or inhibits spikes in the temperature of the aerosol-forming substrate during puffing by a user.
  • combustion or pyrolysis of the aerosol-forming substrate under intense puffing regimes may be advantageously avoided.
  • the impact of a user's puffing regime on the composition of the mainstream aerosol may be advantageously minimized or reduced.
  • the inclusion of a blind combustible heat source may also advantageously substantially prevent or inhibit combustion and decomposition products and other materials formed during ignition and combustion of the blind combustible heat source from entering air drawn through the aerosol generating article during use thereof.
  • the combustible heat source may comprise at least one longitudinal airflow channel, which provides one or more inhalation airflow pathways through the heat source to the aerosol- forming substrate.
  • This inhalation airflow channel may extend along the length of the heat source through which air may be drawn through the aerosol generating article for inhalation by a user.
  • heat sources including one or more longitudinal inhalation airflow channels are referred to herein as "non-blind" heat sources.
  • the aerosol-forming substrate comprises at least one aerosol-former and a material capable of releasing volatile compounds in response to heating.
  • the aerosol-forming substrate may comprise other additives and ingredients including, but not limited to, humectants, flavourants, binders and mixtures thereof.
  • the aerosol-forming substrate comprises nicotine.
  • the aerosol-forming substrate comprises tobacco.
  • the at least one aerosol-former may be any suitable known compound or mixture of compounds that, in use, facilitates formation of a dense and stable aerosol and that is substantially resistant to thermal degradation at the operating temperature of the aerosol generating article.
  • Suitable aerosol-formers are well known in the art and include, for example, polyhydric alcohols, 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.
  • Preferred aerosol formers for use in aerosol generating articles herein are polyhydric alcohols or mixtures thereof, such as triethylene glycol, 1 ,3-butanediol and, most preferred, glycerin.
  • the material capable of emitting volatile compounds in response to heating may be a charge of plant-based material.
  • the material capable of emitting volatile compounds in response to heating may be a charge of homogenized plant-based material.
  • the aerosol-forming substrate may comprise one or more materials derived from plants including, but not limited to: tobacco; tea, for example green tea; peppermint; laurel; eucalyptus; basil; sage; verbena; and tarragon.
  • the material capable of emitting volatile compounds in response to heating is a charge of tobacco-based material, most preferably a charge of homogenized tobacco-based material.
  • the aerosol-forming substrate may be in the form of a plug or segment comprising a material capable of emitting volatile compounds in response to heating circumscribed by a paper or other wrapper. As stated above, where an aerosol-forming substrate is in the form of such a plug or segment, the entire plug or segment including any wrapper is considered to be the aerosol-forming substrate.
  • the aerosol-forming substrate preferably has a length of between about 5 mm and about 20 mm. In certain embodiments, the aerosol-forming substrate may have a length of between about 6 mm and about 15 mm or a length of between about 7 mm and about 12 mm.
  • the aerosol-forming substrate comprises a plug of tobacco-based material wrapped in a plug wrap. In particularly preferred embodiments, the aerosol-forming substrate comprises a plug of homogenized tobacco-based material wrapped in a plug wrap.
  • Aerosol generating or smoking articles described herein may comprise one or more air inlets around the periphery of the aerosol-forming substrate.
  • cool air is drawn into the aerosol-forming substrate of the aerosol generating article through the air inlets.
  • the air drawn into the aerosol-forming substrate through the air inlets passes downstream through the aerosol generating article from the aerosol-forming substrate and exits the aerosol generating article through the mouthpiece or proximal end thereof.
  • the cool air drawn through the one or more air inlets around the periphery of the aerosol-forming substrate advantageously reduces the temperature of the aerosol-forming substrate. This advantageously substantially prevents or inhibits spikes in the temperature of the aerosol-forming substrate during puffing by a user.
  • the term 'cool air' is used to describe ambient air that is not significantly heated by the combustible heat source upon puffing by a user.
  • Aerosol generating or smoking articles described herein may comprise a heat- conducting element around and in direct contact with both at least a rear portion of the heat source and at least a front portion of the aerosol-forming substrate.
  • the heat-conducting element provides a thermal link between the combustible heat source and the aerosol-forming substrate and advantageously helps to facilitate adequate heat transfer from the combustible heat source to the aerosol-forming substrate to provide an acceptable aerosol.
  • Suitable heat-conducting elements for use herein include, but are not limited to: metal foil wrappers such as, for example, aluminum foil wrappers, steel wrappers, iron foil wrappers and copper foil wrappers; and metal alloy foil wrappers.
  • Aerosol generating or smoking articles described herein preferably comprise a mouthpiece located at the proximal end thereof.
  • the mouthpiece is of low filtration efficiency, more preferably of very low filtration efficiency.
  • the mouthpiece may be a single segment or component mouthpiece.
  • the mouthpiece may be a multi-segment or multi-component mouthpiece.
  • the mouthpiece may comprise a filter comprising one or more segments comprising suitable known filtration materials. Suitable filtration materials are known in the art and include, but are not limited to, cellulose acetate and paper. Alternatively or in addition, the mouthpiece may comprise one or more segments comprising absorbents, adsorbents, flavourants, and other aerosol modifiers and additives or combinations thereof.
  • Aerosol generating or smoking articles described herein preferably further comprise a transfer element or spacer element between the aerosol-forming substrate and the mouthpiece.
  • the transfer element may abut one or both of the aerosol-forming substrate and the mouthpiece.
  • the transfer element may be spaced apart from one or both of the aerosol-forming substrate and the mouthpiece.
  • a transfer element advantageously allows cooling of the aerosol generated by heat transfer from the combustible heat source to the aerosol-forming substrate.
  • the inclusion of a transfer element also advantageously allows the overall length of the aerosol generating article to be adjusted to a desired value, for example to a length similar to that of a conventional cigarette, through an appropriate choice of the length of the transfer element.
  • the transfer element may have a length of between about 7 mm and about 50 mm, for example a length of between about 10 mm and about 45 mm or of between about 15 mm and about 30 mm.
  • the transfer element may have other lengths depending upon the desired overall length of the aerosol generating article, and the presence and length of other components within the aerosol generating article.
  • the transfer element comprises at least one open-ended tubular hollow body. In such embodiments, in use, air drawn into the aerosol generating article passes through the at least one open-ended tubular hollow body as it passes downstream through the aerosol generating article from the aerosol-forming substrate to the mouthpiece.
  • the transfer element may comprise at least one open-ended tubular hollow body formed from one or more suitable materials that are substantially thermally stable at the temperature of the aerosol generated by the transfer of heat from the combustible heat source to the aerosol-forming substrate.
  • suitable materials are known in the art and include, but are not limited to, paper, cardboard, plastics, such a cellulose acetate, ceramics and combinations thereof.
  • aerosol generating articles described herein may comprise an aerosol-cooling element or heat exchanger between the aerosol-forming substrate and the mouthpiece.
  • the aerosol-cooling element may comprise a plurality of longitudinally extending channels.
  • the aerosol-cooling element may comprise a gathered sheet of material selected from the group consisting of metallic foil, polymeric material, and substantially non-porous paper or cardboard.
  • the aerosol-cooling element may comprise a gathered sheet of material selected from the group consisting of polyethylene (PE), polypropylene (PP), polyvinylchloride (PVC), polyethylene terephthalate (PET), polylactic acid (PLA), cellulose acetate (CA), and aluminum foil.
  • PE polyethylene
  • PP polypropylene
  • PVC polyvinylchloride
  • PET polyethylene terephthalate
  • PLA polylactic acid
  • CA cellulose acetate
  • the aerosol-cooling element may comprise a gathered sheet of biodegradable polymeric material, such as polylactic acid (PLA) or a grade of Mater- Bi® (a commercially available family of starch based copolyesters).
  • the aerosol generating articles described herein comprise an outer wrapper that circumscribes the aerosol-forming substrate and at least a rear portion of the heat source or heat source holder.
  • the outer wrapper should grip the heat source and heat source holder and the aerosol-forming substrate of the aerosol generating article when the aerosol generating article is assembled.
  • the outer wrapper circumscribes the aerosol-forming substrate, at least a rear portion of the heat source and heat source holder and any other components of the aerosol generating article downstream of the aerosol-forming substrate.
  • Outer wrappers may be formed from any suitable material or combination of materials. Suitable materials are well known in the art and include, but are not limited to, cigarette paper.
  • the outer wrapper may be fixed to the collapsible element.
  • the outer wrapper may fix the collapsible element to the aerosol generating or smoking article.
  • the mouthpiece may be circumscribed by tipping paper. Aerosol generating articles described herein may be assembled using known methods and machinery.
  • the aerosol generating or smoking article may be substantially cylindrical in shape.
  • the aerosol generating or smoking article may be substantially elongate.
  • the aerosol generating or smoking article has a length and a circumference substantially perpendicular to the length.
  • the aerosol-forming substrate may be substantially cylindrical in shape.
  • the aerosol-forming substrate may be substantially elongate.
  • the aerosol-forming substrate also has a length and a circumference substantially perpendicular to the length.
  • the aerosol-forming substrate may be located in the aerosol generating or smoking article such that the length of the aerosol-forming substrate is substantially parallel to the airflow direction in the aerosol generating or smoking article.
  • the transfer section or element may be substantially elongate.
  • the aerosol generating or smoking article may have any desired length.
  • the aerosol generating or smoking article may have a total length of between approximately 65 mm and approximately 100 mm.
  • the aerosol generating or smoking article may have any desired external diameter.
  • the aerosol generating or smoking article may have an external diameter of between approximately 5 mm and approximately 12 mm.
  • upstream and downstream refer to relative positions of elements of the aerosol generating article described in relation to the direction of inhalation air flow as it is drawn through the body of the aerosol generating article from a distal portion to the mouthpiece portion.
  • the singular forms “a”, “an”, and “the” encompass embodiments having plural referents, unless the content clearly dictates otherwise.
  • FIG. 1 is schematic diagram of an illustrative aerosol generating article 100 with the wrapper 110 partially opened to view the internal contents and with the collapsible element 150 spaced apart from the heat source 102.
  • FIG. 2 is a schematic diagram of an illustrative collapsible element 150 in the open state on an aerosol generating article 100.
  • FIG. 3 is a schematic diagram of an illustrative collapsible element 150 in the collapsed state on an aerosol generating article 100.
  • FIG. 4 is schematic diagram cross-sectional view of the illustrative aerosol generating article 100 of FIG. 1.
  • an aerosol generating article 100 extends between a proximal end 103 and a distal end 105.
  • the aerosol generating article 100 includes a combustible heat source 102 positioned at the distal end 105 of the aerosol generating article 100, an aerosol-forming substrate 104 downstream of the combustible heat source 102 and a mouthpiece 106 downstream of the aerosol-forming substrate 104 and positioned at the proximal end 103 of the aerosol generating article 100.
  • a collapsible element 150 is illustrated spaced apart from the heat source 02 and it is understood that the collapsible filter 150 may slide over the combustible heat source 102 and be fixed to either the combustible heat source 02 or the surface of the aerosol generating article 100, or both.
  • the aerosol generating article 100 comprises a combustible heat source 102, an aerosol-generating substrate 104, an aerosol- cooling element 107, an elongate expansion chamber or transfer element 108 and a mouthpiece 106, are in sequential, abutting coaxial alignment, which are overwrapped in an outer wrapper of cigarette paper 110.
  • the combustible heat source 102 is cylindrical.
  • the aerosol-generating substrate 104 is located immediately downstream of the combustible heat source 102 and comprises a cylindrical plug of homogenized tobacco material comprising, for example, glycerine as aerosol former and circumscribed by filter plug wrap.
  • a heat-conducting element 112 consisting of a tube of aluminum foil, surrounds and is in contact with a rear portion of the combustible heat source 102 and an abutting front portion of the aerosol-generating substrate 104.
  • the elongate expansion chamber 108 is located downstream of the aerosol-generating substrate 104 and comprises a cylindrical open-ended tube of cardboard.
  • the mouthpiece 106 is located downstream of the expansion chamber 108 and comprises a cylindrical plug of cellulose acetate tow 109 circumscribed by filter plug wrap.
  • the user ignites the combustible heat source which heats the aerosol-forming substrate to produce an aerosol.
  • air is drawn through the aerosol-forming substrate 104 through air inlet holes 113 in the cigarette paper 110 and adjacent to the aerosol-forming substrate 104, through the expansion chamber 108, through the mouthpiece 06 and into the consumer's mouth.
  • the collapsible element 150 surrounds a length of the combustible heat source 102.
  • the collapsible element 50 is configurable in an open state (see FIG. 2) and a collapsed state (see FIG. 3).
  • the collapsible element 150 defines an airflow opening area in the open state and a reduced airflow opening area in the collapsed state.
  • the collapsible element 150 has a proximal end 152 fixed to the aerosol generating article 100 outer surface and a distal end 154 extending beyond the combustible heat source 102.
  • the illustrated collapsible element 150 is a metal mesh tubular element co-axial with and surrounding the combustible heat source 102.
  • the collapsible element 50 may include a ring element 155 defining an open distal end.
  • the collapsible element 150 has a first length Lo in the open state that is longer than a second length in the collapsed state. A force applied to the distal end 154 of the collapsible element 150 deforms the collapsible element 150 to reduce the length of the collapsible element 150 and thus reduces the opening area and airflow to the combustible heat source 102 to extinguish the combustible heat source 102.

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  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)

Abstract

La présente invention concerne un article de génération d'aérosol (100) présentant une extrémité proximale (103) et une extrémité distale (105) comprenant une source de chaleur combustible (102), un substrat formant aérosol (104) en aval de la source de chaleur combustible, un embout (106) en aval du substrat formant l'aérosol, et un élément pliable (150) enveloppant une longueur de la source de chaleur combustible. L'élément pliable est configurable dans un état ouvert et un état replié réduit dans la longueur. L'élément pliable délimite une zone d'ouverture d'écoulement d'air dans l'état d'ouverture et une zone d'ouverture d'écoulement d'air réduit dans l'état replié. L'élément pliable présente une extrémité proximale fixée à l'article de génération d'aérosol et une extrémité distale s'étendant au-delà de la source de chaleur combustible.
PCT/IB2016/057456 2015-12-29 2016-12-08 Extincteur pour article de génération d'aérosol WO2017115188A1 (fr)

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CN108741216A (zh) * 2017-09-01 2018-11-06 云南拓宝科技有限公司 一种新型非卷制香烟及其制备方法
WO2019158353A1 (fr) * 2018-02-16 2019-08-22 Philip Morris Products S.A. Article de production d'aérosol comprenant une source de chaleur rétractable
WO2019207027A1 (fr) * 2018-04-27 2019-10-31 Jt International Sa Article pour fumer, système pour fumer et procédé de génération d'aérosol
US10798969B2 (en) 2018-03-16 2020-10-13 R. J. Reynolds Tobacco Company Smoking article with heat transfer component
US10874140B2 (en) 2015-12-10 2020-12-29 R.J. Reynolds Tobacco Company Smoking article
WO2021000960A1 (fr) * 2019-07-04 2021-01-07 青岛颐中科技有限公司 Outil à fumer à basse température
WO2021023454A1 (fr) * 2019-08-02 2021-02-11 Philip Morris Products S.A. Article de génération d'aérosol avec dispositif de retenue
US11330838B2 (en) 2019-07-19 2022-05-17 R. J. Reynolds Tobacco Company Holder for aerosol delivery device with detachable cartridge
US11395510B2 (en) 2019-07-19 2022-07-26 R.J. Reynolds Tobacco Company Aerosol delivery device with rotatable enclosure for cartridge
US11439185B2 (en) 2020-04-29 2022-09-13 R. J. Reynolds Tobacco Company Aerosol delivery device with sliding and transversely rotating locking mechanism
RU2783206C2 (ru) * 2018-02-16 2022-11-10 Филип Моррис Продактс С.А. Изделие, генерирующее аэрозоль, и способ его изготовления
US11589616B2 (en) 2020-04-29 2023-02-28 R.J. Reynolds Tobacco Company Aerosol delivery device with sliding and axially rotating locking mechanism
US11723399B2 (en) 2018-07-13 2023-08-15 R.J. Reynolds Tobacco Company Smoking article with detachable cartridge
US11744296B2 (en) 2015-12-10 2023-09-05 R. J. Reynolds Tobacco Company Smoking article
US11825872B2 (en) 2021-04-02 2023-11-28 R.J. Reynolds Tobacco Company Aerosol delivery device with protective sleeve

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US5040552A (en) 1988-12-08 1991-08-20 Philip Morris Incorporated Metal carbide heat source
US5595577A (en) 1993-06-02 1997-01-21 Bensalem; Azzedine Method for making a carbonaceous heat source containing metal oxide
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CN101584497A (zh) * 2008-05-19 2009-11-25 宁田 阻燃防火卷烟
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Cited By (21)

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Publication number Priority date Publication date Assignee Title
US10874140B2 (en) 2015-12-10 2020-12-29 R.J. Reynolds Tobacco Company Smoking article
US11744296B2 (en) 2015-12-10 2023-09-05 R. J. Reynolds Tobacco Company Smoking article
CN108741216A (zh) * 2017-09-01 2018-11-06 云南拓宝科技有限公司 一种新型非卷制香烟及其制备方法
RU2783206C2 (ru) * 2018-02-16 2022-11-10 Филип Моррис Продактс С.А. Изделие, генерирующее аэрозоль, и способ его изготовления
WO2019158353A1 (fr) * 2018-02-16 2019-08-22 Philip Morris Products S.A. Article de production d'aérosol comprenant une source de chaleur rétractable
JP2021514179A (ja) * 2018-02-16 2021-06-10 フィリップ・モーリス・プロダクツ・ソシエテ・アノニム 格納式熱源を有するエアロゾル発生物品
JP7381473B2 (ja) 2018-02-16 2023-11-15 フィリップ・モーリス・プロダクツ・ソシエテ・アノニム 格納式熱源を有するエアロゾル発生物品
US10798969B2 (en) 2018-03-16 2020-10-13 R. J. Reynolds Tobacco Company Smoking article with heat transfer component
US11832643B2 (en) 2018-03-16 2023-12-05 R. J. Reynolds Tobacco Company Smoking article with heat transfer component
WO2019207027A1 (fr) * 2018-04-27 2019-10-31 Jt International Sa Article pour fumer, système pour fumer et procédé de génération d'aérosol
JP2021521814A (ja) * 2018-04-27 2021-08-30 ジェイティー インターナショナル エス．エイ．ＪＴ Ｉｎｔｅｒｎａｔｉｏｎａｌ Ｓ．Ａ． 喫煙物品、喫煙システム及びエアロゾル生成のための方法
US11723399B2 (en) 2018-07-13 2023-08-15 R.J. Reynolds Tobacco Company Smoking article with detachable cartridge
WO2021000960A1 (fr) * 2019-07-04 2021-01-07 青岛颐中科技有限公司 Outil à fumer à basse température
US11395510B2 (en) 2019-07-19 2022-07-26 R.J. Reynolds Tobacco Company Aerosol delivery device with rotatable enclosure for cartridge
US11330838B2 (en) 2019-07-19 2022-05-17 R. J. Reynolds Tobacco Company Holder for aerosol delivery device with detachable cartridge
CN114144080A (zh) * 2019-08-02 2022-03-04 菲利普莫里斯生产公司 具有保持件的气溶胶生成制品
WO2021023454A1 (fr) * 2019-08-02 2021-02-11 Philip Morris Products S.A. Article de génération d'aérosol avec dispositif de retenue
RU2815831C2 (ru) * 2019-08-02 2024-03-22 Филип Моррис Продактс С.А. Изделие для генерирования аэрозоля и способ его получения
US11439185B2 (en) 2020-04-29 2022-09-13 R. J. Reynolds Tobacco Company Aerosol delivery device with sliding and transversely rotating locking mechanism
US11589616B2 (en) 2020-04-29 2023-02-28 R.J. Reynolds Tobacco Company Aerosol delivery device with sliding and axially rotating locking mechanism
US11825872B2 (en) 2021-04-02 2023-11-28 R.J. Reynolds Tobacco Company Aerosol delivery device with protective sleeve

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