EP4199756A1 - Verbrennungshemmendes material und verwendungen davon - Google Patents

Verbrennungshemmendes material und verwendungen davon

Info

Publication number
EP4199756A1
EP4199756A1 EP21762781.9A EP21762781A EP4199756A1 EP 4199756 A1 EP4199756 A1 EP 4199756A1 EP 21762781 A EP21762781 A EP 21762781A EP 4199756 A1 EP4199756 A1 EP 4199756A1
Authority
EP
European Patent Office
Prior art keywords
tobacco
aerosol
combustion
combustion retarding
consumable
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.)
Pending
Application number
EP21762781.9A
Other languages
English (en)
French (fr)
Inventor
Walid Abi Aoun
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.)
Nicoventures Trading Ltd
Original Assignee
Nicoventures Trading Ltd
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 Nicoventures Trading Ltd filed Critical Nicoventures Trading Ltd
Publication of EP4199756A1 publication Critical patent/EP4199756A1/de
Pending legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
    • A24B15/10—Chemical features of tobacco products or tobacco substitutes
    • A24B15/12—Chemical features of tobacco products or tobacco substitutes of reconstituted tobacco
    • A24B15/14—Chemical features of tobacco products or tobacco substitutes of reconstituted tobacco made of tobacco and a binding agent not derived from tobacco
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B13/00—Tobacco for pipes, for cigars, e.g. cigar inserts, or for cigarettes; Chewing tobacco; Snuff
    • A24B13/02—Flakes or shreds of tobacco
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
    • A24B15/10—Chemical features of tobacco products or tobacco substitutes
    • A24B15/12—Chemical features of tobacco products or tobacco substitutes of reconstituted tobacco
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
    • A24B15/18—Treatment of tobacco products or tobacco substitutes
    • A24B15/28—Treatment of tobacco products or tobacco substitutes by chemical substances
    • A24B15/281—Treatment of tobacco products or tobacco substitutes by chemical substances the action of the chemical substances being delayed
    • A24B15/282—Treatment of tobacco products or tobacco substitutes by chemical substances the action of the chemical substances being delayed by indirect addition of the chemical substances, e.g. in the wrapper, in the case
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
    • A24B15/18—Treatment of tobacco products or tobacco substitutes
    • A24B15/28—Treatment of tobacco products or tobacco substitutes by chemical substances
    • A24B15/287—Treatment of tobacco products or tobacco substitutes by chemical substances by inorganic substances only
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
    • A24B15/18—Treatment of tobacco products or tobacco substitutes
    • A24B15/28—Treatment of tobacco products or tobacco substitutes by chemical substances
    • A24B15/30—Treatment of tobacco products or tobacco substitutes by chemical substances by organic substances
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
    • A24B15/18—Treatment of tobacco products or tobacco substitutes
    • A24B15/28—Treatment of tobacco products or tobacco substitutes by chemical substances
    • A24B15/30—Treatment of tobacco products or tobacco substitutes by chemical substances by organic substances
    • A24B15/302—Treatment of tobacco products or tobacco substitutes by chemical substances by organic substances by natural substances obtained from animals or plants
    • 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
    • A24D1/002—Cigars; Cigarettes with additives, e.g. for flavouring
    • 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
    • A24D1/02—Cigars; Cigarettes with special covers
    • 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
    • A24D1/20—Cigarettes specially adapted for simulated smoking devices
    • 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
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/02—Manufacture of tobacco smoke filters
    • A24D3/0204—Preliminary operations before the filter rod forming process, e.g. crimping, blooming
    • A24D3/0212—Applying additives to filter materials
    • 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
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/02—Manufacture of tobacco smoke filters
    • A24D3/0275—Manufacture of tobacco smoke filters for filters with special features
    • 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
    • A24F40/20—Devices using solid inhalable precursors

Definitions

  • a combustion retarding material and uses thereof are provided.
  • the invention relates to a combustion retarding material comprising a combustion retarding salt and an amorphous solid material. It also relates to consumables comprising the combustion retarding material, and non-combustible aerosol provision systems comprising such consumables. The invention further relates method for manufacturing the combustion retarding material and the use of a combustion retarding salt and an amorphous material to retard combustion.
  • Smoking articles such as cigarettes, cigars and the like burn tobacco during use to create tobacco smoke. Attempts have been made to provide alternatives to these articles by creating products that release compounds without combusting. Examples of such products are so-called “heat not burn” products or tobacco heating devices or products, which release compounds by heating, but not burning, smokeable material.
  • a combustion retarding material comprising a combustion retarding salt and an amorphous solid material.
  • the combustion retarding salt is an alkali metal salt, optionally selected from the group consisting of: sodium chloride, potassium chloride, sodium bromide, potassium bromide, and combinations thereof.
  • the combustion retarding salt is incorporated in the amorphous solid material.
  • the combustion retarding salt is applied to the amorphous solid material.
  • the combustion retarding material comprises from about 3 wt to about 60 wt% of the combustion retarding salt (dry weight basis).
  • a consumable comprising a combustion retarding material according to the first aspect.
  • the consumable further comprises an aerosol-generating material.
  • the combustion retarding material at least partially surrounds the aerosol-generating material.
  • the consumable further comprises a wrapper.
  • the combustion retarding material is distributed within the aerosol-generating material.
  • the aerosol-generating material comprises tobacco material.
  • the tobacco material is cut rag tobacco.
  • the consumable comprises a binder.
  • the consumable is rod shaped.
  • a non-combustible aerosol provision system comprising a consumable according to the second aspect.
  • a method for manufacturing the material according to the first aspect wherein the combustion retarding salt is incorporated into or added to the amorphous solid material.
  • a solution or suspension comprising the combustion retarding salt is applied to the amorphous solid material.
  • the combustion retarding salt is added during the manufacture of the amorphous solid material.
  • Figure i is a side-on cross sectional view of a first embodiment of a consumable for use with a non-combustible aerosol provision device comprising the combustion retarding material;
  • Figure 2 is a side-on cross sectional view of a second embodiment of a consumable for use with a non-combustible aerosol provision device comprising the combustion retarding material;
  • Figure 3 is a perspective illustration of a non-combustible aerosol provision device for generating aerosol from the aerosol-generating material of the consumables of Figure i or Figure 2.
  • the present invention relates to a combustion retarding material comprising at least one combustion retarding salt and an amorphous solid material.
  • the salt used herein is a chemical compound consisting of an ionic assembly of cation and anions.
  • the salts used herein are those whose anion and/ or whose cation may be effective in retarding combustion.
  • the salt is an inorganic salt.
  • the salt is a halide salt, i.e. has a halide anion.
  • the salt is a chloride salt or a bromide salt. The presence of high concentrations of chloride or bromide has been shown to retard combustion, as discussed further below.
  • the salt maybe an alkali metal salt, i.e. has an alkali metal cation. In some embodiments, the salt has an alkaline earth metal cation. In some embodiments, the salt has a zinc cation or an iron cation, such as a ferric or ferrous cation. In some embodiments, the salt has an ammonium cation or a phosphonium cation.
  • the salt may be an alkali metal halide, such as sodium chloride or potassium chloride.
  • the salt may be an alkaline earth metal halide, such as magnesium chloride, calcium chloride.
  • the salt may be another metal halide, such as zinc chloride or sodium bromide.
  • the salt has a carboxylate anion.
  • the salt may be an alkali metal carboxylate, such as potassium citrate, potassium succinate, potassium malate, potassium acetate, potassium tartrate, potassium oxalate, sodium citrate, sodium succinate, sodium acetate, or sodium malate.
  • the salt has an anion selected from: borate, carbonate, phosphate, sulphate or sulphamate.
  • Factors that may influence the selection of salt will include, for example, melting point, which will preferably be at least 45O°C.
  • the salt is soluble in water.
  • the salt is selected to provide a desired pH to the material it is added to. In some embodiments, the salt will not significantly change the pH of the material
  • sodium chloride is the salt used. It has been demonstrated that amorphous solid material with a high chloride content is difficult to combust. Further, sodium chloride is neutral, highly soluble and does not affect pH of the amorphous solid material.
  • the combustion retarding salt may be one salt or a combination of any number of salts disclosed herein or known in the art, and is referred to as “combustion retarding salt” herein.
  • the combustion retarding salt(s) may be advantageously selected to give the combustion retarding material desired characteristics.
  • the combustion retarding salt selected may have one or more advantageous properties, such as: inertness, solubility in a precursor liquid, solubility or distribution in the amorphous solid or precursor material to the amorphous solid, density or other properties known in the art.
  • the combustion retarding salt comprises, consists essentially of, or consists of sodium chloride, potassium chloride, sodium bromide and/or potassium bromide.
  • the components of the salt maybe in free base form, salt form, or as a complex, or as a solvate.
  • the combustion retarding salt may be of any density and any crystalline structure.
  • the combustion retarding salt is incorporated into or added to the amorphous solid material dissolved in a solvent or liquid carrier.
  • the combustion retarding salt is suspended in a liquid carrier.
  • the solvent or liquid carrier may be an aqueous or organic liquid, and may be polar or non- polar depending on its suitable application.
  • the liquid carrier or precursor solvent may be advantageously selected to be readily removed during the manufacture of the combustion retarding material to leave the combustion retarding salt in or on the amorphous solid material.
  • the liquid carrier is a mixture of liquids, including aqueous liquid (water) and non-aqueous liquid (e.g. glycerol).
  • aqueous liquid water
  • non-aqueous liquid e.g. glycerol
  • the combustion retarding material comprises an “amorphous solid material”, which may alternatively be referred to as a “monolithic solid” (i.e. non-fibrous).
  • the amorphous solid material maybe a dried gel.
  • the amorphous solid is a solid material that may retain some fluid, such as liquid, within it.
  • the amorphous solid material may comprise from about o.i wt%, 0.5 wt%, 1 wt%, 5 wt%, 10 wt%, 15 wt%, 20 wt% or 25 wt% to about 60 wt%, 50 wt%, 45 wt%, 40 wt% or 35 wt% of a gelling agent (all calculated on a dry weight basis).
  • the amorphous solid may comprise 1-50 wt%, 5-45 wt%, 10-40 wt% or 20-35 wt% of a gelling agent.
  • the gelling agent comprises a hydrocolloid.
  • the gelling agent comprises one or more compounds selected from the group comprising alginates, pectins, starches (and derivatives), celluloses (and derivatives), gums, silica or silicones compounds, clays, polyvinyl alcohol and combinations thereof.
  • the gelling agent comprises one or more of alginates, pectins, hydroxyethyl cellulose, hydroxypropyl cellulose, carboxymethylcellulose, pullulan, xanthan gum guar gum, carrageenan, agarose, acacia gum, fumed silica, PDMS, sodium silicate, kaolin and polyvinyl alcohol.
  • the gelling agent comprises alginate and/or pectin, and maybe combined with a setting agent (such as a calcium source) during formation of the amorphous solid.
  • a setting agent such as a calcium source
  • the amorphous solid may comprise a calcium-crosslinked alginate and/or a calcium-crosslinked pectin.
  • the gelling agent comprises alginate.
  • the alginate is present in the amorphous solid in an amount of from 1-30 wt% of the amorphous solid (calculated on a dry weight basis).
  • alginate is the only gelling agent present in the amorphous solid.
  • the gelling agent comprises alginate and at least one further gelling agent, such as pectin.
  • the combustion retarding material may comprise an amorphous solid which may include gelling agent comprising carrageenan.
  • the amorphous solid may comprise from about 0.1 wt%, 0.5 wt%, 1 wt%, 3 wt%, 5 wt%, 7 wt%, 10 wt%, 15 wt%, 20 wt%, 25 wt%, 30 wt%, 35 wt% or 40% to about 75 wt%, 70 wt%, 65 wt%, 60 wt%, 55 wt% or 50 wt% of an aerosol-former material (all calculated on a dry weight basis).
  • the amorphous solid may comprise 5- 10 wt%, 20-70 wt%, 40-60 wt% or 50-60 wt% of an aerosol-former material.
  • the aerosol-former material may comprise one or more of glycerine, glycerol, propylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, 1,3- butylene glycol, erythritol, meso-Erythritol, ethyl vanillate, ethyl laurate, a diethyl suberate, triethyl citrate, triacetin, a diacetin mixture, benzyl benzoate, benzyl phenyl acetate, tributyrin, lauryl acetate, lauric acid, myristic acid, and propylene carbonate.
  • the aerosol-former material comprises one or more compound selected from erythritol, propylene glycol, glycerol, vegetable glycerine (VG), triacetin, sorbitol and xylitol.
  • the aerosol-former material comprises, consists essentially of or consists of glycerol.
  • the aerosol-former material may act as a plasticiser.
  • the amorphous solid material may comprise 0.5-40 wt%, 3-35 wt% or 10-25 wt% of an aerosol-former material.
  • the aerosol-former material comprises one or more compound selected from erythritol, propylene glycol, glycerol, triacetin, sorbitol and xylitol. In some cases, the aerosol-former material comprises, consists essentially of or consists of glycerol.
  • the inventors have established that if the content of the plasticiser is too high, the amorphous solid material may absorb water resulting in a material that does not create an appropriate consumption experience in use. The inventors have established that if the plasticiser content is too low, the amorphous solid material maybe brittle and easily broken.
  • the plasticiser content specified herein provides an amorphous solid flexibility which allows the amorphous solid sheet to be wound onto a bobbin, which is useful in manufacture of aerosol-generating articles.
  • the amorphous solid material is a hydrogel and comprises less than about 20 wt% of water calculated on a wet weight basis. In some cases, the hydrogel may comprise less than about 15 wt%, 12 wt% or 10 wt% of water calculated on a wet weight basis. In some cases, the hydrogel may comprise at least about 1 wt%, 2 wt% or at least about 5 wt% of water (WWB).
  • WWB water
  • the combustion retarding material comprises a combination of an amorphous solid material and a combustion retarding salt, as discussed herein.
  • the proportion of combustion retarding salt in the combustion retarding material may be advantageously selected for its combustion retardant properties.
  • the combustion retarding material may comprise from about 3 wt%, 15 wt%, 20 wt%, 25 wt %, 30 wt%, 35 wt%, 40 wt%, 45 wt%, or from about 50 wt% to about 90 wt%, 85 wt%, 80 wt%, 75 wt%, 70 wt%, 65 wt% or to about 60 wt% of the combustion retarding salt (all calculated on a dry weight basis).
  • the combustion retarding salt is incorporated into the amorphous solid material. This means that the combustion retarding salt is included within the amorphous solid composition.
  • a liquid precursor of the amorphous solid material is mixed with combustion retarding salt. This distributes the combustion retarding salt throughout the resultant amorphous solid material. In some embodiments, the distribution of the combustion retarding salt is even throughout the amorphous solid and this may be advantageous as the combustion retarding effect is effective across all of the material.
  • the combustion retarding salt may be added in the form of a solution or suspension. Alternatively, the combustion retarding salt may be added to the liquid precursor in solid form, for example in particulate form, such as a powder.
  • the combustion retarding salt is added or applied to the amorphous solid material.
  • a solution or suspension comprising the combustion retarding salt is applied to the surface of the amorphous solid material, to deposit the combustion retarding salt on the surface of the amorphous solid material.
  • the amorphous solid material is contacted with a solution or a suspension comprising the combustion retarding salt.
  • This technique maybe used to form a coating of salt on the surface of the amorphous material. This technique may be repeated multiple times to form one or more layers of the combustion retarding salt.
  • different combustion retarding salts may be incorporated in the one or more coatings and/or in the amorphous solid material. This may provide a specific combustion-retarding profile.
  • a solution or suspension of the combustion retarding salt may be sprayed directly onto the amorphous solid. This is advantageous because the layer of the inorganic solid may be evenly distributed over the amorphous solid. This process may also be repeated to provide a desired thickness of the layer of combustion retarding salt, which is a further advantage.
  • the layers of the combustion retarding salt may comprise the same salt or different salts. Additionally, the proportion of the combustion retarding salt in the carrier liquid or solvent may be altered to provide a layer on the amorphous solid material with desired properties.
  • the proportion of the combustion retarding salt in the solvent or carrier liquid may comprise from about 1 wt%, 5 wt%, 10 wt%, 15 wt%, 20 wt% or 25 wt% to about 60 wt%, 50 wt%, 45 wt%, 40 wt% or 35 wt% of the combustion retarding salt (all calculated on a dry weight basis).
  • the combustion retarding material comprises: - about 1 to about 50 wt% of a gelling agent
  • the combustion retarding material comprises: - about 20 to about 30 wt% of a gelling agent
  • the combustion retarding material is formed from a slurry comprising:
  • the composition of the combustion retarding material will be as follows: alginate (22.3%); sodium chloride (52.1%); and 50 g glycerol (25.6%).
  • the combustion retarding material may consist essentially of, or consist of a combustion retarding salt, a gelling agent, an aerosol-former agent and water.
  • an improved article may be produced comprising a combustion retarding material comprising a combustion retarding salt and an amorphous solid, wherein the material properties (e.g. density) and specification (e.g. thickness, length, and cut width) fall within the ranges set out herein.
  • material properties e.g. density
  • specification e.g. thickness, length, and cut width
  • the combustion retarding material may have a thickness of about 0.015 mm to about 1.5 mm, suitably about 0.05 mm to about 1. 5 mm or 0.05 mm to about 1 mm.
  • the thickness may be in the range of about 0.1 mm or 0.15 mm to about 1 mm, 0.5 mm or 0.3 mm.
  • the combustion retarding material may comprise more than one layer, and the thickness described herein refers to the aggregate thickness of those layers.
  • the coating layer of combustion retarding salt may have a thickness of about o.oi mm to about o.i mm.
  • the combustion retarding salt coating may comprise more than one layer, and the thickness described herein refers to the aggregate thickness of those layers.
  • the thickness of the material or layers discussed herein may be measured using a microscope such as a scanning electron microscope (SEM), as known to those skilled in the art, or any other suitable technique known to those skilled in the art.
  • SEM scanning electron microscope
  • combustion retarding material is too thick, then heating efficiency can be compromised. This can adversely affect power consumption in use, for instance the power consumption for release of flavour from the amorphous solid. Conversely, if the combustion retarding material is too thin, it can be difficult to manufacture and handle; a very thin material can be harder to cast and may be fragile, compromising aerosol formation in use. In some cases, an individual strip or piece of combustion retarding material has a minimum thickness over its area of about
  • an individual strip or piece of the amorphous solid has a minimum thickness over its area of about 0.05 mm or about 0.1 mm. In some cases, an individual strip or piece of the amorphous solid has a maximum thickness over its area of about 1.0mm. In some cases, an individual strip or piece of the combustion retarding material has a maximum thickness over its area of about 0.5 mm or about 0.3 mm.
  • area density this refers to an average area density calculated for a given strip, piece or sheet of combustion retarding material, the area density calculated by measuring the surface area and weight of the given strip, piece or sheet of combustion retarding material.
  • the combustion retarding material thickness may vary by no more than 25%, 20%, 15%, 10%, 5% or 1% across its area.
  • the sheet may have any suitable area density, such as from about 30 g/m 2 to about 150 g/m 2 .
  • the sheet may have a mass per unit area of about 55 g/m 2 to about 135 g/m 2 , or about 80 to about 120 g/m 2 , or from about 70 to about 110 g/m 2 , or particularly from about 90 to about 110 g/m 2 , or suitably about 100 g/m 2 .
  • Such area densities may be particularly suitable where the combustion retarding material is included in an aerosol-generating article as a shredded sheet (described further herein).
  • the sheet may have a mass per unit area of about 30 to 70 g/m 2 , 40 to 60 g/m 2 , or 25 to 60 g/m 2 and maybe used to wrap an aerosolisable material such as tobacco.
  • the density of the combustion retarding material has an impact on the speed at which heat conducts through the material, with lower densities, for instance those below 700 mg/ cc, conducting heat more slowly through the material, and therefore enabling a more sustained release of aerosol.
  • the density of the combustion retarding salt also has an impact on the speed of heat conductions, as well as the aforementioned combustibility of the consumable.
  • the combustion retarding material may have a tensile strength of from 200 N/m to 400 N/m, or 200 N/m to 300 N/m, or about 250 N/m. Such tensile strengths may be particularly suitable for embodiments wherein combustion retarding material is formed as a sheet and then shredded and incorporated into the consumable.
  • a filler is included to increase the tensile strength.
  • the combustion retarding material may have a tensile strength of at least about 1500 or at least about 2000 N/m and/or up to about 5000 N/m. In some embodiments, the tensile strength maybe from about 3000 to about 4000 N/m. Such tensile strengths maybe particularly suitable for embodiments wherein combustion retarding material is incorporated into a consumable in sheet form, for example as a wrapper.
  • the combustion retarding material comprises an amorphous solid which is a hydrogel and comprises less than about 20 wt% of water calculated on a wet weight basis.
  • the hydrogel may comprise less than about 15 wt%, 12 wt% or 10 wt% of water calculated on a wet weight basis.
  • the hydrogel may comprise at least about 1 wt%, 2 wt% or at least about 5 wt% of water.
  • the combustion retarding material may comprise of additional components, which are described herein.
  • the additional components may be included in any part of the combustion retarding material.
  • the combustion retarding material comprises one or more other functional materials, which may comprise one or more of pH regulators, colouring agents, preservatives, binders, fillers, stabilizers, and/or antioxidants.
  • the combustion retarding material comprises a flavour.
  • the combustion retarding material therefore has the advantage of preventing the combustion of the flavourant and delivering a desired taste.
  • the combustion retarding material may comprise up to about 8o wt%, 70 wt%, 6o wt%, 55 wt%, 50 wt% or 45 wt% of a flavour. In some cases, the combustion retarding material may comprise at least about 0.1 wt%, 1 wt%, 10 wt%, 20 wt%, 30 wt%, 35 wt% or 40 wt% of a flavour (all calculated on a dry weight basis).
  • the combustion retarding material may comprise 1-80 wt%, 10-80 wt%, 20-70 wt%, 30-60 wt%, 35-55 wt% or 30-45 wt% of a flavour.
  • the flavour comprises, consists essentially of or consists of menthol.
  • the flavourant is included in the aerosol-generating material.
  • Flavour provided in the amorphous solid material may be more stably retained, resulting in a more consistent flavour profile between consumables as disclosed herein.
  • the terms “flavour” and “flavourant” refer to materials which, where local regulations permit, maybe used to create a desired taste, aroma or other somatosensorial sensation in a product for adult consumers.
  • flavour materials may include naturally occurring flavour materials, botanicals, extracts of botanicals, synthetically obtained materials, or combinations thereof (e.g., tobacco, cannabis, licorice (liquorice), hydrangea, eugenol, Japanese white bark magnolia leaf, chamomile, fenugreek, clove, maple, matcha, menthol, Japanese mint, aniseed (anise), cinnamon, turmeric, Indian spices, Asian spices, herb, wintergreen, cherry, berry, red berry, cranberry, peach, apple, orange, mango, clementine, lemon, lime, tropical fruit, papaya, rhubarb, grape, durian, dragon fruit, cucumber, blueberry, mulberry, citrus fruits, Drambuie, bourbon, scotch, whiskey, gin, tequila, rum, spearmint, peppermint, lavender, aloe vera, cardamom, celery, cascarilla, nutmeg, sandalwood, bergamot,
  • the flavour comprises menthol, spearmint and/or peppermint.
  • the flavour comprises flavour components of cucumber, blueberry, citrus fruits and/or redberry.
  • the flavour comprises eugenol.
  • the flavour comprises flavour components extracted from tobacco.
  • the flavour comprises flavour components extracted from cannabis.
  • the flavour may comprise a sensate, which is intended to achieve a somatosensorial sensation which are usually chemically induced and perceived by the stimulation of the fifth cranial nerve (trigeminal nerve), in addition to or in place of aroma or taste nerves, and these may include agents providing heating, cooling, tingling, numbing effect.
  • a suitable heat effect agent may be, but is not limited to, vanillyl ethyl ether and a suitable cooling agent may be, but not limited to eucolyptol, WS-3.
  • the amorphous solid may be made from a gel, and this gel may additionally comprise a solvent, included at 0.1-50 wt%.
  • a solvent included at 0.1-50 wt%.
  • the inventors have established that the inclusion of a solvent in which the flavour is soluble may reduce the gel stability and the flavour may crystallise out of the gel.
  • the gel does not include a solvent in which the flavour is soluble.
  • solvent may be removed by evaporation prior to the inclusion of a flavour.
  • the combustion retarding material may additionally comprise an emulsifying agent, which emulsified molten flavour during manufacture.
  • the combustion retarding material may comprise from about 5 wt% to about 15 wt% of an emulsifying agent (calculated on a dry weight basis), suitably about 10 wt%.
  • the emulsifying agent may comprise acacia gum (gum arabic) or guar gum.
  • the emulsifying agent is included in the amorphous solid material.
  • the combustion retarding material may comprise an active substance. In some embodiments, the combustion retarding material does not comprise an active substance.
  • the active substance is included in the amorphous solid material.
  • the active substance as used herein may be a physiologically active material, which is a material intended to achieve or enhance a physiological response.
  • the active substance may for example be selected from nutraceuticals, nootropics, psychoactives.
  • the active substance may be naturally occurring or synthetically obtained.
  • the active substance may comprise for example nicotine, caffeine, taurine, theine, vitamins such as B6 or B12 or C, melatonin, cannabinoids, or constituents, derivatives, or combinations thereof.
  • the active substance may comprise one or more constituents, derivatives or extracts of tobacco, cannabis or another botanical.
  • the active substance comprises nicotine. In some embodiments, the active substance comprises caffeine, melatonin or vitamin B12.
  • the active substance may comprise one or more constituents, derivatives or extracts of cannabis, such as one or more cannabinoids or terpenes.
  • the active substance may comprise or be derived from one or more botanicals or constituents, derivatives or extracts thereof.
  • botanical includes any material derived from plants including, but not limited to, extracts, leaves, bark, fibres, stems, roots, seeds, flowers, fruits, pollen, husk, shells or the like.
  • the material may comprise an active compound naturally existing in a botanical, obtained synthetically.
  • the material may be in the form of liquid, gas, solid, powder, dust, crushed particles, granules, pellets, shreds, strips, sheets, or the like.
  • Example botanicals are tobacco, eucalyptus, star anise, hemp, cocoa, cannabis, fennel, lemongrass, peppermint, spearmint, rooibos, chamomile, flax, ginger, ginkgo biloba, hazel, hibiscus, laurel, licorice (liquorice), matcha, mate, orange skin, papaya, rose, sage, tea such as green tea or black tea, thyme, clove, cinnamon, coffee, aniseed (anise), basil, bay leaves, cardamom, coriander, cumin, nutmeg, oregano, paprika, rosemary, saffron, lavender, lemon peel, mint, juniper, elderflower, vanilla, wintergreen, beefsteak plant, curcuma, turmeric,
  • the mint maybe chosen from the following mint varieties: Mentha Arventis, Mentha c.v., Mentha niliaca, Mentha piperita, Mentha piperita citrata c.v., Mentha piperita c.v., Mentha spicata crispa, Mentha cardifolia, Mentha longifolia, Mentha suaveolens variegata, Mentha pulegium, Mentha spicata c.v. and Mentha suaveolens
  • the active substance comprises or is derived from one or more botanicals or constituents, derivatives or extracts thereof and the botanical is tobacco. In some embodiments, the active substance comprises or derived from one or more botanicals or constituents, derivatives or extracts thereof and the botanical is selected from eucalyptus, star anise, cocoa and hemp.
  • the active substance comprises or derived from one or more botanicals or constituents, derivatives or extracts thereof and the botanical is selected from rooibos and fennel.
  • the total content of active substance and/ or flavour in the combustion retarding material maybe at least about 0.1 wt%, 1 wt%, 5 wt%, 10 wt%, 20 wt%, 25 wt% or 30 wt%. In some cases, the total content of active substance and/ or flavour may be less than about 90 wt%, 80 wt%, 70 wt%, 60 wt%, 50 wt% or 40 wt% (all calculated on a dry weight basis).
  • the combustion retarding material additionally comprises plant material or tobacco material and/ or nicotine.
  • the combustion retarding material may comprise 5-60 wt% (calculated on a dry weight basis) plant material and/or tobacco material and/or nicotine and/or tobacco extract. In some cases, the combustion retarding material may comprise from about 1 wt%, 5 wt%, 10 wt%, 15 wt%, 20 wt% or 25 wt% to about 70 wt%, 60 wt%, 50 wt%, 45 wt%, 40 wt%, 35 wt%, or 30 wt% (calculated on a dry weight basis) plant material and/or tobacco material and/or nicotine and/or tobacco extract.
  • the combustion retarding material may comprise 5-60 wt% (calculated on a dry weight basis) plant material and/ or tobacco material and/ or nicotine and/ or tobacco extract. In some cases, the combustion retarding material may comprise from about 1 wt%, 5 wt%, 10 wt%, 15 wt%, 20 wt% or 25 wt% to about 70 wt%, 60 wt%, 50 wt%, 45 wt%, 40 wt%, 35 wt%, or 30 wt% (calculated on a dry weight basis) plant material and/or tobacco material and/or nicotine and/or tobacco extract. In a preferred embodiment of the invention, the combustion retarding material may comprise 5-60 wt% (calculated on a dry weight basis) plant material and/ or tobacco material and/ or nicotine and/or tobacco extract.
  • the combustion retarding material there may be no nicotine in the combustion retarding material other than that which is provided from the tobacco material or the tobacco extract.
  • the combustion retarding material comprises no tobacco material but does comprise nicotine.
  • the combustion retarding material may comprise from about 1 wt%, 2 wt%, 3 wt% or 4 wt% to about 20 wt%, 18 wt%, 15 wt% or 12 wt% (calculated on a dry weight basis) nicotine.
  • the combustion retarding material may comprise 1-20 wt%, 2-18 wt% or 3-12 wt% nicotine.
  • the combustion retarding material comprises a filler. In some embodiments, the filler is included in the amorphous solid material. In some embodiments, the combustion retarding material comprises less than 60 wt% of a filler, such as from 1 wt% to 60 wt%, or 5 wt% to 50 wt%, or 5 wt% to 30 wt%, or 10 wt% to 20 wt%. In other embodiments, the combustion retarding material comprises less than 20 wt%, suitably less than 10 wt% or less than 5 wt% of a filler. In some cases, the amorphous solid material comprises less than 1 wt% of a filler, and in some cases, comprises no filler.
  • the filler may comprise one or more inorganic filler materials in addition to the combustion retarding salt(s), such as calcium carbonate, perlite, vermiculite, diatomaceous earth, colloidal silica, magnesium oxide, magnesium sulphate, magnesium carbonate, and suitable inorganic sorbents, such as molecular sieves.
  • the filler may comprise one or more organic filler materials such as wood pulp, cellulose and cellulose derivatives.
  • the combustion retarding material comprises no calcium carbonate such as chalk.
  • the filler is fibrous.
  • the filler may be a fibrous organic filler material such as wood pulp, hemp fibre, cellulose or cellulose derivatives.
  • fibrous filler in the combustion retarding material may increase the tensile strength of the material.
  • the combustion retarding material does not comprise tobacco fibres.
  • combustion retarding material may have a tensile strength of from 600 N/m to 900 N/m, or from 700 N/m to 900 N/m, or around 800 N/m.
  • tensile strengths may be particularly suitable for embodiments wherein the combustion retarding material is included in an aerosol-generating article as a rolled sheet, suitably in the form of a tube or a rod.
  • a consumable is an article comprising aerosol-generating material, part or all of which is intended to be consumed during use by a user.
  • a consumable may comprise one or more other components, such as an aerosol-generating material storage area, an aerosol-generating material transfer component, an aerosol generation area, a housing, a wrapper, a mouthpiece, a filter and/or an aerosol-modifying agent.
  • a consumable may also comprise an aerosol generator, such as a heater, that emits heat to cause the aerosol-generating material to generate aerosol in use.
  • the heater may, for example, comprise combustible material, a material heatable by electrical conduction, or a susceptor.
  • the consumable may be any shape or size that is appropriate to the smoking device.
  • the consumable is a rod shape.
  • the consumable comprises a combustion retarding material as disclosed herein.
  • the inclusion of the combustion retarding material in the consumable means that it is not necessary to include a foil in the consumable.
  • Consumables can include a metal foil, such as aluminium foil, as part of the wrapper surrounding the aerosol-generating material to retard or prevent combustion.
  • the combustion retarding material surrounds at least some of the aerosol-generating material.
  • a wrapper surrounding the aerosolgenerating material may comprise or consist of a combustion retarding material.
  • the combustion retarding material may be in the form of a sheet. One or more layers of the combustion retarding material may circumscribe the aerosol-generating material.
  • the combustion retarding material surrounds all of the aerosolgenerating material.
  • the combustion retarding material not only circumscribes the length of the rod of aerosol-generating material but also encloses the end of the rod. This may be in the form of the sheet being folded or otherwise extended over the end of the rod, or a plug of the combustion retarding material being inserted into the end of the rod. This will prevent the aerosol-generating material combusting if an attempt is made to light the consumable like a cigarette.
  • the rod of aerosol-generating material may have a first end and a second end.
  • the rod has a downstream end, usually connected to or comprising a mouthpiece and/or filter, and an upstream end, also referred to as a distal end.
  • the combustion retarding material is provided locally, for example, at the distal end of a rod of aerosol-generating material, with little or no combustion retarding material provided in other parts of the consumable.
  • the combustion retarding material is provided in greater concentration at a location proximal to the distal end.
  • the combustion retarding material is provided exclusively at a location proximal to the distal end.
  • the area in which the combustion retarding material is provided maybe at most about 5%, at most about 10%, at most about 20%, at most about 30%, at most about 40%, at most about 50%, or at most about 60% of the rod from the distal end.
  • the combustion retarding material is disposed at the distal end of the rod in the form of a shredded sheet.
  • said combustion retarding material may be interspersed, mixed or otherwise combined with the aerosol-generating material.
  • the shredded combustion retarding material may circumscribe the aerosol-generating material.
  • the shredded combustion retarding material is not mixed with the aerosol-generating material, and may be in the form of a plug.
  • the shredded format of the combustion retarding material has the advantage that this is well suited to being incorporated into the rod.
  • the combustion retarding material may be in the form of a gathered sheet.
  • the gathered sheet is in the form of a plug.
  • the gathered sheet format has the advantage that travel of salt up the rod is reduced.
  • a plug of combustion retarding material may also be formed as a solid mass comprising a combustion retarding salt and an amorphous solid material.
  • a portion of the aerosol-generating material such as tobacco, maybe replaced with the combustion retarding material. In some embodiments, between about 5% to about 15%, or about 8% to about 12% of the weight of the aerosolgenerating material may be replaced with the combustion retarding material.
  • the combustion retarding material may be in the form of a plug. This embodiment enjoys the advantage of preventing the aerosol-generating material combusting if an attempt is made to light the consumable like a cigarette, whilst maintaining the total size of the consumable or rod. This is particularly beneficial when the rod is used as consumable in an aerosol-generating device and can be swapped with alternative consumable(s) already in production.
  • the consumable may comprise at least one ventilation area arranged to allow external air to flow into the article.
  • the ventilation area may comprise one or more ventilation apertures or perforations cut into the wrapper to allow ambient air to be drawn into the article. This will influence pressure drop and can enhance the user’s experience of the flavour properties of the aerosol generating material.
  • the location of these vents and/or perforations may be between about 0.5 mm to about 10 mm, between about 1 mm to about 4 mm or between about 4mm to about 8 mm from the distal end of the rod.
  • the vents and/ or perforations may be of any suitable size and/ or number to adapt the flow-through of air.
  • the size, number and location on the wrapper of the vents and/ or perforations may be selected to provide the appropriate flow through of air. For example, more numerous and larger vents and/or perforations may introduce more air into the rod, increase the flow-through of air and thus provide the appropriate pressure drop.
  • the combustion retarding material is mixed with the aerosolgenerating material. In such embodiments, the combustion retarding material maybe in the form of a shredded or cut sheet, mixed with the aerosol-generating material.
  • the presence of the combustion retarding material distributed within the aerosol- generating material can reduce the tendency of the aerosol-generating material to combust when exposed to high temperatures and/ or a flame.
  • the consumable comprises a blend of aerosol-generating material and combustion retarding material.
  • the blend comprises aerosol-generating material in an amount from 50% to 98%, for instance from 80% to 95%, wherein the aerosol-generating material is for instance cut rag tobacco, and shredded amorphous solid material in an amount from 2% to 50%, for instance from 5% to 20%.
  • even mixing of the aerosol-generating material and the combustion retarding material can be achieved when the combustion retarding material in sheet form is shredded.
  • the cut width of the shredded combustion retarding material is between 0.75 mm and 2 mm, for instance between 1 mm and 1.5 mm.
  • the strands of combustion retarding material formed by shredding maybe cut width-wise, for example in a cross-cut type shredding process, to define a cut length for the shredded combustion retarding material, in addition to a cut width.
  • the cut length of the shredded combustion retarding material is preferably at least 5 mm, for instance at least 10 mm, or at least 20 mm.
  • the cut length of the shredded combustion retarding material can be less than 60 mm, less than 50 mm, or less than 40 mm.
  • the cut length of the shredded a combustion retarding material is preferably non-uniform.
  • the length of the shreds or strips of combustion retarding material can alternatively or additionally be dictated by a dimension of the material determined during its manufacture, for instance the width of a sheet of the material as manufactured.
  • the aerosol-generating material included in the consumable comprises one or more active substances and/or flavours.
  • this material includes tobacco or other plant derived material. When this aerosolgenerating material includes tobacco, heating this material releases volatile tobacco components including nicotine and flavour or aroma compounds.
  • the aerosol-generating material comprises a plant-based material, such as tobacco material.
  • tobacco material refers to any material comprising tobacco or derivatives or substitutes thereof.
  • tobacco material may include one or more of tobacco, tobacco derivatives, expanded tobacco, reconstituted tobacco or tobacco substitutes.
  • the tobacco material may comprise one or more of ground tobacco, tobacco fibre, cut tobacco, extruded tobacco, tobacco stem, tobacco lamina, reconstituted tobacco and/or tobacco extract.
  • the plant material is tobacco material and may be provided in the form of cut rag tobacco.
  • the cut rag tobacco can have a cut width of at least 15 cuts per inch (about 5.9 cuts per cm, equivalent to a cut width of about 1.7 mm).
  • the cut rag tobacco has a cut width of at least 18 cuts per inch (about 7.1 cuts per cm, equivalent to a cut width of about 1.4 mm), more preferably at least 20 cuts per inch (about 7.9 cuts per cm, equivalent to a cut width of about 1.27 mm).
  • the cut rag tobacco has a cut width of 22 cuts per inch (about 8.7 cuts per cm, equivalent to a cut width of about 1.15 mm).
  • the cut rag tobacco has a cut width at or below 40 cuts per inch (about 15.7 cuts per cm, equivalent to a cut width of about 0.64 mm).
  • Cut widths between 0.5 mm and 2.0 mm have been found to result in tobacco material which is preferably in terms of surface area to volume ratio, particularly when heated, and the overall density and pressure drop of the rod of aerosol-generating material.
  • the cut rag tobacco can be formed from a mixture of forms of tobacco material, for instance a mixture of one or more of paper reconstituted tobacco, leaf tobacco, extruded tobacco and bandcast tobacco.
  • the tobacco material comprises paper reconstituted tobacco or a mixture of paper reconstituted tobacco and leaf tobacco.
  • the plant material such as tobacco material
  • the plant material may have any suitable thickness.
  • the plant material, such as tobacco material may have a thickness of at least about 0.145 mm, for instance at least about 0.15 mm, or at least about 0.16 mm.
  • the plant material may have a maximum thickness of about 0.25 mm, for instance the thickness of the plant material may be less than about 0.22 mm, or less than about 0.2 mm.
  • the plant material may have an average thickness in the range 0.175 mm to 0.195 mm. Such thicknesses maybe particularly suitable where the plant material is a reconstituted tobacco material.
  • the tobacco material can comprise reconstituted tobacco material having a density of less than about 700 mg/cc, for instance paper reconstituted tobacco material.
  • the aerosol-generating material comprises reconstituted tobacco material having a density of less than about 600 mg/cc.
  • the aerosol - generating material can comprise reconstituted tobacco material having a density of at least 350 mg/ cc.
  • the aerosol-generating material contains a filler component.
  • the filler component is generally a non-tobacco component, that is, a component that does not include ingredients originating from tobacco.
  • the filler component maybe a non-tobacco fibre such as wood fibre or pulp or wheat fibre.
  • the filler component may also be an inorganic material such as chalk, perlite, vermiculite, diatomaceous earth, colloidal silica, magnesium oxide, magnesium sulphate, magnesium carbonate.
  • the filler component may also be a non-tobacco cast material or a non-tobacco extruded material.
  • the filler component maybe present in an amount of o to 20% by weight of the tobacco material, or in an amount of from 1 to 10% by weight of the composition.
  • the filler component is absent.
  • the aerosol-generating material contains an aerosol-former material.
  • the aerosol-former material included with the plant or tobacco material maybe glycerol, propylene glycol, or a mixture of glycerol and propylene glycol.
  • Glycerol maybe present in an amount of from 10 to 20 % by weight of the tobacco material, for example 13 to 16 % by weight of the composition, or about 14% or 15% by weight of the composition.
  • Propylene glycol if present, maybe present in an amount of from 0.1 to 15% by weight of the composition.
  • the tobacco material can contain between 10% and 90% by weight tobacco leaf, wherein the aerosol-former material is provided in an amount of up to about 10% by weight of the leaf tobacco.
  • the aerosol-former material is provided in an amount of up to about 10% by weight of the leaf tobacco.
  • the tobacco material described herein contains nicotine.
  • the nicotine content is from 0.5 to 1.75% by weight of the tobacco material, and maybe, for example, from 0.8 to 1.5% by weight of the tobacco material. Additionally or alternatively, the tobacco material contains between 10% and 90% by weight tobacco leaf having a nicotine content of greater than 1.5% by weight of the tobacco leaf. It has been advantageously found that using a tobacco leaf with nicotine content higher than 1.5% in combination with a lower nicotine base material, such as paper reconstituted tobacco, provides a tobacco material with an appropriate nicotine level but better sensory performance than the use of paper reconstituted tobacco alone.
  • the tobacco leaf for instance cut rag tobacco, can, for instance, have a nicotine content of between 1.5% and 5% by weight of the tobacco leaf.
  • the plant or tobacco material described herein can contain an aerosol modifying agent, such as any of the flavours described herein.
  • the tobacco material contains menthol, forming a mentholated article.
  • the tobacco material can comprise from 3 mg to 20 mg of menthol, preferably between 5 mg and 18 mg and more preferably between 8 mg and 16 mg of menthol. In the present example, the tobacco material comprises 16 mg of menthol.
  • the tobacco material can contain between 2% and 8% by weight of menthol, preferably between 3% and 7% by weight of menthol and more preferably between 4% and 5.5% by weight of menthol. In one embodiment, the tobacco material includes 4.7% by weight of menthol.
  • Such high levels of menthol loading can be achieved using a high percentage of reconstituted tobacco material, for instance greater than 50% of the tobacco material by weight.
  • a higher level of menthol loading that can be achieved by incorporation of the menthol in an aerosol-generating material comprising an aerosol forming agent and one or more binder and/or cross-linker
  • the tobacco material comprises the tobacco component as defined herein and the aerosol-former material as defined herein. In an embodiment, the tobacco material consists essentially of the tobacco component as defined herein and the aerosol-former material as defined herein. In an embodiment, the tobacco material consists of the tobacco component as defined herein and the aerosol-former material as defined herein.
  • Paper reconstituted tobacco may be present in the tobacco component of the tobacco material described herein in an amount of from 10% to 100% by weight of the tobacco component. In embodiments, the paper reconstituted tobacco is present in an amount of from 10% to 80% by weight, or 20% to 70% by weight, of the tobacco component. In a further embodiment, the tobacco component consists essentially of, or consists of, paper reconstituted tobacco.
  • leaf tobacco is present in the tobacco component of the tobacco material in an amount of from at least 10% by weight of the tobacco component.
  • leaf tobacco can be present in an amount of at least 10% by weight of the tobacco component, while the remainder of the tobacco component comprises paper reconstituted tobacco, bandcast reconstituted tobacco, or a combination of bandcast reconstituted tobacco and another form of tobacco such as tobacco granules.
  • leaf tobacco can be present in an amount up to 40 % or 60% of the tobacco material, while the remainder of the tobacco component comprises paper reconstituted tobacco, bandcast reconstituted tobacco, or a combination of bandcast reconstituted tobacco and another form of tobacco such as tobacco granules.
  • Paper reconstituted tobacco refers to tobacco material formed by a process in which tobacco feedstock is extracted with a solvent to afford an extract of solubles and a residue comprising fibrous material, and then the extract (usually after concentration, and optionally after further processing) is recombined with fibrous material from the residue (usually after refining of the fibrous material, and optionally with the addition of a portion of non-tobacco fibres) by deposition of the extract onto the fibrous material.
  • the process of recombination resembles the process for making paper.
  • the paper reconstituted tobacco may be any type of paper reconstituted tobacco that is known in the art.
  • the paper reconstituted tobacco is made from a feedstock comprising one or more of tobacco strips, tobacco stems, and whole leaf tobacco.
  • the paper reconstituted tobacco is made from a feedstock consisting of tobacco strips and/or whole leaf tobacco, and tobacco stems.
  • scraps, fines and winnowings can alternatively or additionally be employed in the feedstock.
  • the paper reconstituted tobacco for use in the tobacco material described herein may be prepared by methods which are known to those skilled in the art for preparing paper reconstituted tobacco.
  • the density of the tobacco material has an impact on the speed at which heat conducts through the material, with lower densities, for instance those below 700 mg/ cc, conducting heat more slowly through the material, and therefore enabling a more sustained release of aerosol.
  • Figure 1 is a side-on cross sectional view of a consumable or article 1 for use in an aerosol delivery system.
  • the article 1 comprises a mouthpiece segment 2, and an aerosol generating segment 3.
  • the aerosol generating segment 3 is in the form of a cylindrical rod and comprises an aerosol-generating material 4 comprising cut rag reconstituted tobacco.
  • the aerosolgenerating material can be any of the materials discussed herein. Although described above in rod form, the aerosol generating segment 3 can be provided in other forms, for instance a plug, pouch, or packet of material within an article.
  • the mouthpiece segment 2 in the illustrated embodiment, includes a body of material 5 such as a fibrous or filamentary tow.
  • the rod-shaped consumable 1 further comprises a wrapper 6 circumscribing the mouthpiece segment 2 and aerosol generating segment 3.
  • the wrapper 6 comprises a sheet of combustion retarding material as described herein.
  • the combustion retarding material is a sheet of amorphous solid material comprising sodium chloride.
  • Figure 2 is a side-on cross sectional view of an alternative embodiment of a consumable or article 1 for use in an aerosol delivery system.
  • the article 1 again comprises a mouthpiece segment 2, and an aerosol generating segment 3.
  • the aerosol generating segment 3 comprises a blend 7 of aerosol-generating material and combustion retarding material.
  • the rod-shaped consumable 1 further comprises a wrapper 8 circumscribing the mouthpiece segment 2 and aerosol generating segment 3.
  • the wrapper 8 comprises a sheet of paper.
  • a “non-combustible” aerosol provision system is one where a constituent aerosol-generating material of the aerosol provision system (or component thereof) is not combusted or burned in order to facilitate delivery of at least one substance to a user.
  • the delivery system is a non-combustible aerosol provision system, such as a powered non-combustible aerosol provision system.
  • the non-combustible aerosol provision system is an electronic cigarette, also known as a vaping device or electronic nicotine delivery system (END), although it is noted that the presence of nicotine in the aerosol-generating material is not a requirement.
  • END electronic nicotine delivery system
  • the non-combustible aerosol provision system is an aerosol- generating material heating system, also known as a heat-not-burn system.
  • a heat-not-burn system is a tobacco heating system.
  • the non-combustible aerosol provision system is a hybrid system to generate aerosol using a combination of aerosol-generating materials, one or a plurality of which may be heated.
  • Each of the aerosol-generating materials may be, for example, in the form of a solid, liquid or gel and may or may not contain nicotine.
  • the hybrid system comprises a liquid or gel aerosol-generating material and a solid aerosol-generating material.
  • the solid aerosol-generating material may comprise, for example, tobacco or a non-tobacco product.
  • the non-combustible aerosol provision system may comprise a non- combustible aerosol provision device and a consumable for use with the non- combustible aerosol provision device.
  • the disclosure relates to consumables comprising aerosolgenerating material and configured to be used with non-combustible aerosol provision devices. These consumables are sometimes referred to as articles throughout the disclosure.
  • the non-combustible aerosol provision system such as a non- combustible aerosol provision device thereof, may comprise a power source and a controller.
  • the power source may, for example, be an electric power source or an exothermic power source.
  • the exothermic power source comprises a carbon substrate which may be energised so as to distribute power in the form of heat to an aerosol-generating material or to a heat transfer material in proximity to the exothermic power source.
  • the non-combustible aerosol provision system may comprise an area for receiving the consumable, an aerosol generator, an aerosol generation area, a housing, a mouthpiece, a filter and/ or an aerosol-modifying agent.
  • Figure 3 shows an example of a non-combustible aerosol provision device 100 for generating aerosol from an aerosol-generating medium/material such as the aerosolgenerating material of a consumable 110, as described herein.
  • the device too maybe used to heat a replaceable article 110 comprising the aerosol- generating medium, for instance an article 1 as illustrated in any one of Figures 1 or 2 or as described elsewhere herein, to generate an aerosol or other inhalable medium which is inhaled by a user of the device too.
  • the device too and replaceable article 110 together form a system.
  • the device too comprises a housing 102 (in the form of an outer cover) which surrounds and houses various components of the device too.
  • the device too has an opening 104 in one end, through which the article 110 maybe inserted for heating by a heating assembly. In use, the article 110 may be fully or partially inserted into the heating assembly where it may be heated by one or more components of the heater assembly.
  • the device too of this example comprises a first end member 106 which comprises a lid 108 which is moveable relative to the first end member 106 to close the opening 104 when no article 110 is in place.
  • the lid 108 is shown in an open configuration, however the lid 108 may move into a closed configuration. For example, a user may cause the lid 108 to slide in the direction of arrow “B”.
  • the device too may also include a user-operable control element 112, such as a button or switch, which operates the device too when pressed. For example, a user may turn on the device too by operating the switch 112.
  • a user-operable control element 112 such as a button or switch
  • the device too may also comprise an electrical component, such as a socket/port 114, which can receive a cable to charge a battery of the device too.
  • the socket 114 may be a charging port, such as a USB charging port.
  • the combustion retarding salt is incorporated into or added to the amorphous solid material dissolved in a solvent or liquid carrier.
  • the combustion retarding salt is a suspension in a liquid carrier.
  • the solvent or liquid carrier may be an aqueous or organic liquid, and may be polar or nonpolar depending on its suitable application.
  • the liquid carrier or precursor solvent may be advantageously selected to be volatile, so that the carrier liquid or solvent may be removed to leave the combustion retarding salt in or on the amorphous solid material.
  • the solvent or liquid carrier comprises a mixture of water and glycerol.
  • Consumables comprising cut rag aerosol-generating material were prepared, using a variety of different wrappers.
  • the first wrapper used was paper, namely 24 GSM (grammes per square metre) paper with a porosity of 75 CU (Coresta units).
  • a further wrapper used was laminated aluminium foil comprising 6.3 pm thickness lacquered aluminium foil laminated with 23.5 GSM paper with 37 pm thickness.
  • a combustion retarding material according to the present disclosure was used, formed from a slurry having the following make up:
  • the consumables were hand made, by inserting the combustion retarding sheet as an inner wrapper, and then filling the rod with tobacco.
  • the consumables were lit in the manner of a combustible cigarette and attempts were made to smoke them by puffing.
  • Tests showed that the amorphous solid material comprising sodium chloride resisting combustion well and performed similarly to the known combustion retardant foil and Delfort papers.
  • further combustion retarding material according to the present disclosure was used, formed from a slurry having the following make up:
  • the slurry was dried in an oven to form a sheet.
  • the sheets that were obtained did not combust when exposed to a naked flame from a lighter.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Inorganic Chemistry (AREA)
  • Agronomy & Crop Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Botany (AREA)
  • Manufacture Of Tobacco Products (AREA)
  • Paper (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Fireproofing Substances (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Laminated Bodies (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
EP21762781.9A 2020-08-21 2021-08-20 Verbrennungshemmendes material und verwendungen davon Pending EP4199756A1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GBGB2013121.5A GB202013121D0 (en) 2020-08-21 2020-08-21 A combustion retarding materials and uses thereof
GBGB2109079.0A GB202109079D0 (en) 2020-08-21 2021-06-24 A combustion retarding material and uses thereof
PCT/GB2021/052163 WO2022038370A1 (en) 2020-08-21 2021-08-20 A combustion retarding material and uses thereof

Publications (1)

Publication Number Publication Date
EP4199756A1 true EP4199756A1 (de) 2023-06-28

Family

ID=72660813

Family Applications (2)

Application Number Title Priority Date Filing Date
EP21762780.1A Pending EP4199759A1 (de) 2020-08-21 2021-08-20 Stopfen mit einem verbrennungshemmenden additiv und verwendungen davon
EP21762781.9A Pending EP4199756A1 (de) 2020-08-21 2021-08-20 Verbrennungshemmendes material und verwendungen davon

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP21762780.1A Pending EP4199759A1 (de) 2020-08-21 2021-08-20 Stopfen mit einem verbrennungshemmenden additiv und verwendungen davon

Country Status (12)

Country Link
US (2) US20230345999A1 (de)
EP (2) EP4199759A1 (de)
JP (2) JP2023538827A (de)
KR (2) KR20230051695A (de)
CN (2) CN116157028A (de)
AU (2) AU2021329064A1 (de)
BR (2) BR112023003372A2 (de)
CA (2) CA3172444A1 (de)
GB (3) GB202013121D0 (de)
IL (2) IL300226A (de)
MX (1) MX2023002059A (de)
WO (2) WO2022038366A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118804697A (zh) * 2021-12-20 2024-10-18 尼科创业贸易有限公司 用于在气溶胶提供系统中使用的消耗品
WO2024201065A1 (en) * 2023-03-29 2024-10-03 Nicoventures Trading Limited Aerosol generating article

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IE65680B1 (en) * 1984-09-14 1995-11-15 Reynolds Tobacco Co R Smoking article
US5105837A (en) * 1990-08-28 1992-04-21 R. J. Reynolds Tobacco Company Smoking article with improved wrapper
US10154689B2 (en) * 2015-06-30 2018-12-18 R.J. Reynolds Tobacco Company Heat generation segment for an aerosol-generation system of a smoking article
RU2749663C2 (ru) * 2016-12-29 2021-06-16 Филип Моррис Продактс С.А. Изделие, генерирующее аэрозоль, имеющее диспергируемый в воде фильтрующий компонент
US20180199617A1 (en) * 2017-01-18 2018-07-19 Bianca Iodice Tobacco Free Hookah Smoking Gel
GB201812510D0 (en) * 2018-07-31 2018-09-12 Nicoventures Holdings Ltd Aerosol generation
NL2022211B1 (en) * 2018-12-14 2020-07-03 B V Deli Htl Tabak Mij A hollow rod made from a homogenized tobacco material.
CN110150757B (zh) * 2019-05-28 2024-03-01 云南中烟工业有限责任公司 一种一次性双通道烟支及其制备方法

Also Published As

Publication number Publication date
AU2021329063B2 (en) 2024-02-01
GB202013121D0 (en) 2020-10-07
GB202109701D0 (en) 2021-08-18
CA3172455A1 (en) 2022-02-24
JP2023538838A (ja) 2023-09-12
GB202109079D0 (en) 2021-08-11
US20230345999A1 (en) 2023-11-02
IL300342A (en) 2023-04-01
MX2023002059A (es) 2023-03-16
BR112023003298A2 (pt) 2023-03-21
CN116157028A (zh) 2023-05-23
BR112023003372A2 (pt) 2023-04-11
WO2022038366A1 (en) 2022-02-24
WO2022038370A1 (en) 2022-02-24
JP2023538827A (ja) 2023-09-12
IL300226A (en) 2023-03-01
CA3172444A1 (en) 2022-02-24
KR20230051695A (ko) 2023-04-18
CN116157027A (zh) 2023-05-23
KR20230051694A (ko) 2023-04-18
US20230413896A1 (en) 2023-12-28
AU2021329063A1 (en) 2023-03-02
EP4199759A1 (de) 2023-06-28
AU2021329064A1 (en) 2023-03-02

Similar Documents

Publication Publication Date Title
AU2021319152B2 (en) Consumable for an aerosol provision system
AU2021316877B2 (en) Consumable for an aerosol provision system
US20230345999A1 (en) A combustion retarding material and uses thereof
AU2021328314B2 (en) Aerosol-generating material with combustion retarding properties and uses thereof
CA3219726A1 (en) A consumable for use with an aerosol provision device
US20240277048A1 (en) A consumable for use with an aerosol provision device
WO2023067332A1 (en) Article with combustion retarding properties and uses thereof
WO2024165715A1 (en) Wrapper for an aerosol-generating consumable and methods for manufacturing the same

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

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

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

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: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20230215

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

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20240423