[go: up one dir, main page]

EP3918927A1 - E-liquide pour la vapotage comprenant un agent formant un aérosol et son procédé de production - Google Patents

E-liquide pour la vapotage comprenant un agent formant un aérosol et son procédé de production Download PDF

Info

Publication number
EP3918927A1
EP3918927A1 EP20178518.5A EP20178518A EP3918927A1 EP 3918927 A1 EP3918927 A1 EP 3918927A1 EP 20178518 A EP20178518 A EP 20178518A EP 3918927 A1 EP3918927 A1 EP 3918927A1
Authority
EP
European Patent Office
Prior art keywords
tobacco
liquid
solution
boiling point
distillate
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
EP20178518.5A
Other languages
German (de)
English (en)
Inventor
Andrew Robert John ROGAN
Alec WRIGHT
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JT International SA
Original Assignee
JT International SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by JT International SA filed Critical JT International SA
Priority to EP20178518.5A priority Critical patent/EP3918927A1/fr
Publication of EP3918927A1 publication Critical patent/EP3918927A1/fr
Pending legal-status Critical Current

Links

Images

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
    • A24B15/16—Chemical features of tobacco products or tobacco substitutes of tobacco substitutes
    • A24B15/167—Chemical features of tobacco products or tobacco substitutes of tobacco substitutes in liquid or vaporisable form, e.g. liquid compositions for electronic cigarettes
    • 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
    • A24B15/24—Treatment of tobacco products or tobacco substitutes by extraction; Tobacco extracts

Definitions

  • Present invention relates to the field of electronic cigarette, in particular relates to an e-liquid for vaping and a method of producing thereof.
  • E-cigarettes also known as e-cigs, vapes, vape pens, mods and tanks are devices that operate by heating a liquid solution to a certain temperature so that it produces an aerosol that is inhaled.
  • e-cigarette devices have a heating element that atomizes a liquid solution called e-liquid. They are activated by taking a puff or pressing a button.
  • Vapour is cloudy diffused matter such as mist, steam or fumes suspended in the air while aerosol is a liquid or solid composed of finely divided particles suspended in a gaseous medium.
  • E-liquid solution or liquid solution typically include tobacco-containing material, flavourings (flavourant) and a humectant, such as propylene glycol, to retain moisture and create an aerosol when heated.
  • E-cigarette users often search for a tobacco flavour e-liquid that does not taste artificial. This is due to the fact that concentrated nicotine such as nicotine shot which is often added into the e-liquid solution does not contain flavour. For this reason, chemical mimicking tobacco flavour is usually mixed with the e-liquid solution in order to mimic the real tobacco taste and flavour. Nevertheless, experienced users could still recognise the distinctive difference between a real tobacco flavour from a mimicked tobacco flavour.
  • a first aspect of the invention is accordingly to provide an e-liquid for vaping, comprising an aerosol-forming agent as a base solution of the e-liquid, wherein the e-liquid comprises one or more extracts from tobacco-containing material such as vaporized extracts comprising tobacco-derived components, having a specific boiling point, wherein the boiling point of the extract is not higher than the boiling point of the base solution.
  • a second aspect of the invention is to provide a method of producing e-liquid for vaping, comprising the steps of:
  • a third aspect of the invention is to provide an e-liquid obtainable from one of the methods according to the present invention.
  • the e-liquids of the present invention not only give real tobacco taste and flavour but also do not clog the vaping device due to the fact that the extracts have a boiling point less than the boiling point of the base solution.
  • the tobacco-derived components of the extract in the e-liquid when being heated are evaporated as vapour, leaving no residues in the vaping device.
  • the heating element does not become fouled and causes unpleasant smell.
  • the heating element does not need to be cleaned frequently nor be replaced often.
  • the extract is a distillate. This ensures that all content of the extract (which contains tobacco-derived components) to be evaporated along with the base solution such that no residues are left in the e-liquid or the vaping device when being heated. Thus, the heating element and the vaping device will not be clogged or causing foul taste or smell.
  • the boiling point of the extract and/or the base solution is less than about 300 °C, preferably less than 200 °C, more preferably about 100 °C.
  • glycerol has a boiling point of about 290 °C
  • propylene glycol has a boiling point of about 188 °C.
  • the mixture can further be subjected to a pressure while extracting/distilling such as at a standard atmospheric pressure.
  • other pressure can also be provided, ranging from 0 (vacuum) to 5 atmospheric pressure.
  • the e-liquid comprises both glycerol and propylene glycol as base solution and being heated at around 300 °C
  • the base solution as well as the entire extract will be vaporised. No impurity is left in the e-liquid.
  • propylene glycol is used as a solvent to extract tobacco-derived components
  • the solvent is subject to a distillation process (heating at its boiling point at about 188 °C)
  • the distillate containing tobacco-derived components is therefore "pure" in the sense that the extract and/or base solution will be evaporated completely, leaving no trace of residues in the vaping device.
  • the boiling point of the extract and/or the base solution is between about 75 °C and 300 °C, preferably between 160°C and 300 °C, more preferably between 271 °C and 300 °C.
  • ethanol has a boiling point of about 78 °C
  • pure water has a boiling point of about 100 °C
  • propylene glycol has a boiling point of about 188 °C
  • glycerol has a boiling point of about 290 °C.
  • Suitable solvent can be chosen to extract tobacco-derived components based on their physical and chemical properties (e.g. polarity) and/or the boiling point of the base solution of the e-liquid.
  • the e-liquid further comprises one or more components selected from the list consisting of water, flavourant, humectant, additives and enhancer.
  • the e-liquid comprises two or more solvents as a base solution, wherein one, two or more of the solvents are aerosol-forming agent.
  • the base solution comprises at least two solvents, wherein a first solvent has an aqueous character and a second solvent being immiscible with the first solvent.
  • Both solvents can for example provided to the tobacco material simultaneously in order to extract both watersoluble compounds and water-insoluble compounds into their solvents respectively.
  • the two immiscible solvents can be collected subsequently as a distillate.
  • This distillate can be provided to a base solution of an e-liquid or serves directly as a base solution of an e-liquid. This has the advantage that the distillate comprises a rich tobacco flavour and taste that is close to the natural tobacco character compared to artificial chemical mimicking tobacco flavour.
  • the extract has a boiling point less than the boiling point of the base solution, it ensures that the no residues are being left accumulated in the vaping device upon use of the e-liquid.
  • the e-liquid may comprise of two solvents.
  • the first solvent having a higher boiling point can be first used to extract the tobacco-derived components and collected as a distillate, and subsequently the distillate is provided to a second solvent having a lower boiling point, and may further be subjected to a second distillation.
  • the distillate collected is hence provided in a purer form.
  • the distillate is found to be of higher quality, as the extract/distillate undergo a double distillation process, thus increasing the quality of the e-liquid.
  • the tobacco-containing material are fine particles, preferably processed through milling, pulverization, granulation, filtration and combinations thereof.
  • the fine particles has higher surface area, allowing the tobacco-containing material to contact more easily with the solvent to enhance the extraction process.
  • the tobacco-containing material has an average particle size of about less than about 5 mm, preferably less than about 3 mm or less than about 2 mm, or more preferably between about 0.01 mm and about 1 mm. Particle size of between about 0.01 mm and about 1 mm is most preferred as it allows most tobacco-derived components to be extracted by the one or more solvents.
  • the tobacco-containing material are selected from a list consisting of tobacco lamina, tobacco leaf, tobacco stem, reconstituted tobacco, tobacco dust and tobacco waste.
  • the extracts are extracted from tobacco-containing material with one or more solvents selected from a list consisting of propylene glycol, glycerine, 1, 3-propane-diol (vegetol), water and ethanol.
  • the method further comprises a step in between the step (a) and the step (b) of claim 1 by filtering out fine particles having particle sizes larger than 5 mm, preferably larger than about 3 mm or larger than about 2 mm, or more preferably larger than about 1 mm to provide filtered fine particles.
  • the method further comprises a step of providing the distillate or the vaporized extract comprising tobacco-derived components to a further solvent, forming a second solution as a base solution of the e-liquid, and followed subsequently by collecting the second solution.
  • the step further comprising a step of purifying the distillate including tobacco-derived components obtained from the tobacco-containing solvent mixture such as to provide a purified distillate including tobacco-derived components.
  • the method further comprises a step of double distillation.
  • the distillate is obtained through simple distillation, steam distillation, dry distillation, vacuum distillation, fractional distillation and/or short path distillation.
  • a tobacco-containing material can be any compound, mixture, particle matter, and/or solution that contains and/or carries a constituent of tobacco, either artificially included or naturally contained in tobacco, e.g. tobacco, tobacco particles, tobacco flavor and/or nicotine.
  • tobacco, tobacco particles, tobacco flavor and/or nicotine e.g. tobacco, tobacco particles, tobacco flavor and/or nicotine.
  • an example for an artificially added non-tobacco-specific flavor would be menthol.
  • aerosol-forming agent and "aerosol-generating material” are used interchangeably, and referred to a material capable of releasing upon heating volatile compounds (tobacco-derived components), which can form an aerosol.
  • the aerosol generated from aerosol-generating material described herein 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.
  • An aerosol-forming agent can be any compound, mixture and/or solution that is capable of forming an aerosol, e.g. when heated and/or in mixture with a tobacco-derived components.
  • Well known examples include humectants such as glycerin and propylene glycol, other alcohols, such as ethanol, and etc.
  • wt.-% is to be understood as weight percent, based on the total weight of the substance, unless explicitly otherwise specified. In the present disclosure, all amounts are given in wt.-%, unless clearly stated otherwise or obvious from context. In the present disclosure, furthermore all amounts given in wt.-% add up to 100 wt.-%. The weight percent are thereby calculated by dividing the mass of each component by the total mass e.g. of the foam, unless indicated otherwise or clear from context.
  • distillate is an extract (or vaporized extract which has been cooled and condensed) in which the final product has been systematically stripped off of most impure materials and compounds from tobacco-containing material except those volatile compounds having boiling points lower or similar to the boiling point of the solvent itself.
  • first solution is referred to the distillate.
  • the term “comprise” is used interchangeably with the term “is” or “are”.
  • the expression “the first solution comprises a distillate” may be understood as “the first solution is a distillate”.
  • Figure 1 shows a first embodiment of the present invention.
  • distillation process may be used to not only expedite the process but the distillate (vaporised extract subsequently cooled and condensed) obtained also has a higher purity quality.
  • Figure 1 is one embodiment of the present invention where an extract comprising tobacco-derived components is extracted through a distillation process. Fine particles of tobacco-containing material 4 is provided to a solvent 2 (liquid solution), forming a tobacco-containing solvent mixture 6. Due to the larger surface area of the tobacco-containing material 4 that is in contact with the solvent 2, higher amount of tobacco-derived components can be extracted effectively into the solvent 2.
  • FIG. 1 shows a typical distillation set up.
  • the distillation apparatus consists basically of a distillation flask 17, usually fitted with a vertical fractionating column (which may be empty, or packed with suitable materials such as glass helices or stainless-steel wool) to which is attached a condenser 18 leading to a receiving flask 12.
  • the bulb of a thermometer 15 projects into the vapour phase 8 just below the region where the condenser joins the column.
  • the distilling flask is heated so that its contents are steadily vaporised by boiling.
  • the vapour 8 passes up into the column where, initially, it condenses and runs back into the flask.
  • the resulting heat transfer gradually warms the column so that there is a progressive movement of the vapour phase-liquid boundary up the column, with increasing enrichment of the more volatile components.
  • the vapour extract 8 finally passing into the condenser 18 is commonly that of the lowest-boiling components in the system.
  • the conditions apply until all of the low-boiling material has been distilled, whereupon distillation ceases until the column temperature is high enough to permit the next component to distil. This usually results in a temporary fall in the temperature indicated by the thermometer.
  • the tobacco-containing solvent mixture 6 was heated slowly to reach a pre-determined temperature.
  • the pre-determined temperature was set according to the boiling point of the solvent 2 such that the solvent 2 was boiled when reaching its boiling point.
  • vapour gases 8 was produced.
  • the flask (or pot) 17 was continuously heated, so that a vapour 8, rich in the volatile components, was cooled and condensed, and subsequently collected in the external receiver 12 as a distillate 10.
  • the process was performed through a simple extractive distillation process. However, it can be foreseen that other suitable distillation can also be used to obtain a distillate 10 such as vacuum distillation, fractional distillation or even azeotropic distillation.
  • the extract may contain very low amount of tobacco-derived components which are volatile compounds that give real tobacco taste and flavour
  • the distillate may be heated at a temperature (e.g. 10 to 20 °C) slightly lower than the boiling point of said base solution such as to condensate the distillate.
  • a temperature e.g. 10 to 20 °C
  • higher amount of tobacco-containing material e.g. 1:5 of tobacco powder in dry weight: solvent
  • solvent such that the extract contains higher amount of tobacco-derived components.
  • the extract containing the volatile compounds does not need to contain very high amount or percentage of tobacco-derived components, for instance an amount/percentage of 0.1 % to 1.5 %, preferably between 0.1 % and 0.5 % of volatile compounds (tobacco-derived components) containing in the extract/distillate would be sufficient to render the e-liquid a real tobacco flavour and taste.
  • the distillate 10 collected is an extract comprising tobacco-derived components.
  • this extract can be provided to a base solution of an e-liquid for vaping.
  • the tobacco-derived components may comprise of nicotine, nitrosamine and acetaldehyde when using suitable solvent to extract these volatile compounds.
  • the boiling points of nicotine is 246 °C
  • nitrosamine is 175 °C
  • acetaldehyde is 20 °C.
  • Suitable solvents can be used to extract interested volatile compounds within the common knowledge of skilled persons.
  • the tobacco-derived compounds in E-liquid can be measured using GC (Gas chromatography) with suitable detector such as MS (Mass spectrometer) or FID (Flame lonisation Detector) or HPLC (High Performance Liquid Chromatography with suitable detector such as MS or RID (Reflective Index Detector) or UVD (Ultra Violet Detector).
  • MS Mass spectrometer
  • FID Flume lonisation Detector
  • HPLC High Performance Liquid Chromatography
  • MS Reflective Index Detector
  • UVD Ultra Violet Detector
  • the extract 10 obtained through an extractive distillation process can serve directly as a base solution of an e-liquid.
  • the solvent 2 explained in Figure 1 can be glycerol and/or propylene glycol.
  • the tobacco-containing solvent mixture 6 is heated and reached its boiling point (e.g. glycerol has a boiling point of 290 °C; propylene glycol has a boiling point of about 188 °C)
  • the solvent (glycerol and/or propylene glycol) vaporized.
  • the vapour 8 is subsequently cooled and condensed, forming a distillate 10.
  • tobacco-derived components are extracted from the tobacco material 2.
  • the vaporized extract 8 (obtained from heating of the tobacco-containing solvent mixture 6) can be channelled directly to an aerosol-forming agent (of a base solution) such that the vapour can be captured by the aerosol- forming agent of an e-liquid.
  • the e-liquid comprises both the aerosol- forming agent as a base solution as well as one or more extracts containing the tobacco-derived components.
  • fine particles of tobacco-containing material can be provided to flask of water, wherein the liquid solution is boiled at its boiling point.
  • Vapour (steam) which contains tobacco-derived components is subsequently channelled to a base solution of an e-liquid (e.g. glycerol and/or propylene glycol) such that trace amount of steam/vapour is trapped in the base solution.
  • the base solution obtained comprises volatile compounds of tobacco extract.
  • the boiling temperature of the extract is lower than the boiling temperature of the base solution (both glycerol and propylene glycol), therefore the e-liquid contains no impurities.
  • a first solvent may have an aqueous character and a second solvent may not immiscible with the first solvent.
  • hydrophobic and hydrophilic volatile compounds and/or flavouring organic compounds can be extracted by their respective solvents and subsequently a higher purity extract (distillate) can be collected. This method would ensure richer tobacco compounds can be extracted.
  • the e-liquid which comprises one or more of such extracts are certainly preferred by most users due to its rich and natural tobacco flavour and smell.
  • tobacco leaves are macerated in one or more solvents.
  • the solvents may comprise a polar and/or a non-polar solvent (e.g., ethyl alcohol, hexane, etc.).
  • the first solution and/or the second solvent comprises ethanol.
  • the first solution and/or the second solution comprises water and/or water-miscible liquid(s).
  • the second solution comprises propylene glycol (PG), vegetable glycerin (VG), or a combination of both.
  • the first solution comprises pure grain alcohol.
  • the first solution comprises about 76% ethanol and about 24% water.
  • the percentage (v/v) of first solvent to second solvent in the first solution and/or the second solution may vary.
  • the percentage (w/v) of tobacco leaves to solution may also vary.
  • Various types of tobacco leaves may be used, according to preference.
  • the types of cured tobacco are chosen for properties which would closely represent a real cigarette.
  • the tobacco-containing solvent mixture (solvent comprising tobacco-containing material) are preferably mixed vigorously (shaken, vortexed, etc.) to extract the desired compounds that are in the tobacco leaf.
  • the mixture may be gently heated to assist the maceration.
  • the mixture may be left for a period of time (e.g., days, weeks, months).
  • the mixture may be agitated (constantly, at random, or at predetermined intervals), during the soaking time.
  • the macerated solution is then strained, removing the rough tobacco matter.
  • the tobacco parts may be pressed to remove as much liquid as possible.
  • the macerated solution is preferably strained through a filter suitable for removing any of the larger particles.
  • the resulting strained liquid is approximately 70 to 95 percent of the volume of the macerated solution.
  • the tobacco-containing solvent mixture (where the first solution (distillate) is obtained from) may be removed by various means known to those of ordinary skill in the art.
  • the first solution is collected by heating the strained solution in a distillation unit until the first vaporized extract is collected (e.g., as shown in the FIG. 1 ).
  • the temperature and time required for the distillation may be determined by those of ordinary skill in the art depending on the type of the solvent that is used. For example, for a solution comprising about 76% ethanol and about 24% water, the liquid may be heated to about 78 °C to collect the first solvent as a distillate, or to about 100 °C if it is water.
  • the distillate is thus pure and can be used directly as a base solution of an e-liquid, or can instead be provided to a base solution of an e-liquid.
  • the first solution may comprise of up to 95 wt. % glycerine and propylene glycol and the remaining is made up of ethanol and/or water.
  • This embodiment has the advantage that richer tobacco flavour is obtained as different tobacco-derived components are extracted by different composition of the first solution.
  • less than 3 % by weight of ethanol is provided in the first solution.
  • the ethanol may not be only pure ethanol but may also be 75 % ethanol.
  • the vaporized extract may then be channelled to a second solution comprise of only propylene glycol and glycerine, serving to condense the vapour.
  • the tobacco material can vary. Examples of suitable tobaccos include flue-cured, Burley, and Oriental tobaccos, as well as the rare or specialty tobaccos.
  • the tobacco material can be in the form of laminae and/or stem, or can be in a processed form. Tobacco waste materials and processing by-products such as fines, dust, scrap, stems and stalks can be employed. The aforementioned materials can be processed separately, or as blends thereof.
  • the tobacco material can have a variety of sizes for the first extraction.
  • the tobacco can be in strip form or cut filler form.
  • the tobacco can be ground to a powder of fine size. Small particle size tobacco materials are desirable in order to provide for increased extraction efficiency as well as decrease the time period over which extraction may occur.
  • the tobacco material may be contacted with a solvent having an aqueous character.
  • a solvent consists primarily of water, and can be essentially pure water in certain circumstances, or ionic water.
  • the solvent can include water having substances such as pH buffers or the like dissolved therein.
  • the solvent also can be a co-solvent mixture of water and minor amounts of one or more solvents which are miscible therewith.
  • An example of such a co-solvent mixture is a solvent consisting of 95 parts water and 5 parts ethanol. Of course, another ratios are also possible.
  • the amount of tobacco material which is contacted with the solvent can vary. Typically, the weight of first solvent relative to the (dried) tobacco material is greater than 5:1, oftentimes greater than 10:1 and in certain instances greater than 20:1.
  • the amount of solvent relative to tobacco material depends upon factors such as the type of solvent, the temperature at which the extraction is performed, the type or form of tobacco which is extracted, the manner in which contact of the tobacco material and solvent is conducted, and other such factors.
  • the manner of contacting the tobacco material and first solvent is not particularly critical.
  • a starting material of 10 % of tobacco-containing material by dry weight and 90 % by weight of a mixture of solvent comprising 50 % propylene glycol and 50 % glycerol was placed in a flask.
  • the solvent mixture 6 was left in a room temperature for at least an hour.
  • Distillation was commenced and carried out by heating the flask slowly to a maximum temperature of 300 °C. Distillation was stopped when about 60% by weight of the starting material was collected as a distillate. In this manner the desired volatile compounds (tobacco-derived components) were obtained to the exclusion of bad tasting impurities. To this end, it was observed that a top quality of distillate can be obtained from the first 10 % to about 40 % distillate as most of the tobacco volatile compounds were constantly being released at that distillation phase.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacture Of Tobacco Products (AREA)
EP20178518.5A 2020-06-05 2020-06-05 E-liquide pour la vapotage comprenant un agent formant un aérosol et son procédé de production Pending EP3918927A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20178518.5A EP3918927A1 (fr) 2020-06-05 2020-06-05 E-liquide pour la vapotage comprenant un agent formant un aérosol et son procédé de production

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20178518.5A EP3918927A1 (fr) 2020-06-05 2020-06-05 E-liquide pour la vapotage comprenant un agent formant un aérosol et son procédé de production

Publications (1)

Publication Number Publication Date
EP3918927A1 true EP3918927A1 (fr) 2021-12-08

Family

ID=71016429

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20178518.5A Pending EP3918927A1 (fr) 2020-06-05 2020-06-05 E-liquide pour la vapotage comprenant un agent formant un aérosol et son procédé de production

Country Status (1)

Country Link
EP (1) EP3918927A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117882885A (zh) * 2024-02-07 2024-04-16 浙江中烟工业有限责任公司 一种低次片烟烟叶提取茄酮的方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016051334A1 (fr) * 2014-09-30 2016-04-07 Philip Morris Products S.A. Récupération de constituants de tabac à partir d'un traitement
US20160360780A1 (en) * 2014-02-26 2016-12-15 Japan Tobacco Inc. Extraction method of flavor constituent and manufacturing method of composition element of favorite item
US20170245543A1 (en) * 2016-02-25 2017-08-31 Altria Client Services Llc Method of manufacturing a pre-vapor formulation including volatiles

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160360780A1 (en) * 2014-02-26 2016-12-15 Japan Tobacco Inc. Extraction method of flavor constituent and manufacturing method of composition element of favorite item
WO2016051334A1 (fr) * 2014-09-30 2016-04-07 Philip Morris Products S.A. Récupération de constituants de tabac à partir d'un traitement
US20170245543A1 (en) * 2016-02-25 2017-08-31 Altria Client Services Llc Method of manufacturing a pre-vapor formulation including volatiles

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117882885A (zh) * 2024-02-07 2024-04-16 浙江中烟工业有限责任公司 一种低次片烟烟叶提取茄酮的方法

Similar Documents

Publication Publication Date Title
RU2566902C2 (ru) Способы экстракции и выделения компонентов целлюлозного материала
US5197494A (en) Tobacco extraction process
KR102642690B1 (ko) 니코틴 조성물, 제조 방법, 및 이를 포함하는 에어로졸 발생 물품
CN106174683B (zh) 一种组合物及含有该组合物的电子烟烟液
CN115104758A (zh) 由加工来回收烟草组分
EP3979819B1 (fr) Procédé amélioré de production d'un extrait de tabac liquide
EP3918927A1 (fr) E-liquide pour la vapotage comprenant un agent formant un aérosol et son procédé de production
EP3979838B1 (fr) Procédé de production d'un extrait de tabac liquide mélangé à partir de deux ou plusieurs tabacs
JP7778726B2 (ja) 送達システム及び送達システムに含まれる組成物
CN108865437B (zh) 一种烟用紫苏子香料的制备方法及在卷烟中的应用
RU2815279C2 (ru) Способ получения жидкого экстракта табака
RU2818243C2 (ru) Способ получения смешанного жидкого табачного экстракта из двух или более видов табака
RU2816932C2 (ru) Концентрирование влажных табачных экстрактов
CN119523142A (zh) 一种提取烟草香味成分的方法
HK1174224B (en) Methods for extracting and isolating constituents of cellulosic material
HK1174224A (en) Methods for extracting and isolating constituents of cellulosic material

Legal Events

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

Free format text: ORIGINAL CODE: 0009012

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

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

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

B565 Issuance of search results under rule 164(2) epc

Effective date: 20201211

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: 20220607

RBV Designated contracting states (corrected)

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