EP3576552A2 - Methods and systems for improving stability of pre-vapor formulations of e-vaping devices - Google Patents

Methods and systems for improving stability of pre-vapor formulations of e-vaping devices

Info

Publication number
EP3576552A2
EP3576552A2 EP18703309.7A EP18703309A EP3576552A2 EP 3576552 A2 EP3576552 A2 EP 3576552A2 EP 18703309 A EP18703309 A EP 18703309A EP 3576552 A2 EP3576552 A2 EP 3576552A2
Authority
EP
European Patent Office
Prior art keywords
compound
vapor formulation
percent
equal
weight
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
EP18703309.7A
Other languages
German (de)
English (en)
French (fr)
Inventor
Marc W. Fariss
Michael J. Oldham
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.)
Philip Morris Products SA
Original Assignee
Philip Morris Products 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 Philip Morris Products SA filed Critical Philip Morris Products SA
Publication of EP3576552A2 publication Critical patent/EP3576552A2/en
Pending legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24BMANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B15/00Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
    • A24B15/10Chemical features of tobacco products or tobacco substitutes
    • A24B15/16Chemical features of tobacco products or tobacco substitutes of tobacco substitutes
    • A24B15/167Chemical features of tobacco products or tobacco substitutes of tobacco substitutes in liquid or vaporisable form, e.g. liquid compositions for electronic cigarettes
    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24FSMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/10Devices using liquid inhalable precursors
    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24FSMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40Constructional details, e.g. connection of cartridges and battery parts

Definitions

  • the free (for example, hydroxyl) radicals may react with ingredients of the pre-vapor formulation, resulting in a decrease of the stability of the pre-vapor formulation.
  • the free radicals may also mix with the vapor generated by the e-vaping device.
  • vapor former describes any suitable known compound or mixture of compounds that, in use, facilitates formation of a vapor and that is substantially resistant to thermal degradation at the operating temperature of the e-vaping device.
  • Suitable vapor formers may include various compositions of polyhydric alcohols such as at least one of propylene glycol and glycerin.
  • the vapor former is propylene glycol.
  • the vapor former is included in a solvent of a pre-vapor formulation.
  • control circuitry 1 1 may include a time-period limiter.
  • control circuitry 1 1 may include a manually operable switch for an adult vaper to initiate heating.
  • the time-period of the electric current supply to the heater may be set or pre-set depending on the amount of pre-vapor formulation desired to be vaporized.
  • the sensor 16 may detect a pressure drop and the control circuitry 1 1 may supply power to the heater as long as heater activation conditions are met.
  • the power supply (or battery) 12 may be rechargeable and include circuitry configured to enable the battery to be chargeable by an external charging device.
  • the circuitry when charged, provides power for a given quantity of instances of vapor being drawn through one or more outlets of the e-vaping device 60, negative pressure being applied to an interior of the e-vaping device through one or more outlets 21 , some combination thereof, or the like, after which the circuitry may have to be re-connected to an external charging device.
  • the e-vaping device 60 may include control circuitry 1 1 which can be, for example, on a printed circuit board.
  • the control circuitry 1 1 may also include a heater activation light 27 that is configured to glow when the device is activated.
  • the heater activation light 27 may include a light emitting diode (LED).
  • the heater activation light 27 may be arranged to be visible to an adult vaper during vaping.
  • the heater activation light 27 may be utilized for e-vaping system diagnostics or to indicate that recharging is in progress.
  • the heater activation light 27 may also be configured such that the adult vaper may activate, deactivate, or activate and deactivate the heater activation light 27 for privacy.
  • the heater activation light 27 may be located on the tip end of the e-vaping device 60.
  • the heater activation light 27 may be located on a side portion of the outer housing of the e-vaping device 60.
  • the reservoir 14 of a cartridge 70 that itself may be included in an e-vaping device 60, is configured to hold one or more pre-vapor formulations.
  • the polyol compound when the solution compound includes a polyol compound, may be included in the pre-vapor formulation at a concentration that is equal to or greater than about 0.2 percent and equal to or less than about 10 percent by weight based on the weight of the pre-vapor formulation. In some example embodiments, when the solution compound includes a polyol compound, the polyol compound may be included in the pre-vapor formulation at a concentration that is equal to or greater than about 0.2 percent and equal to or less than about 2 percent by weight based on the weight of the pre-vapor formulation.
  • the polyol compound when the solution compound includes a polyol compound, may be included in the pre-vapor formulation at a concentration that is equal to or greater than about 8 percent and equal to or less than about 10 percent by weight based on the weight of the pre-vapor formulation.
  • the solution compound may include a salt solution.
  • the salt solution may include at least one of, for example, sodium chloride, sodium citrate, sodium tartrate, sodium succinate, sodium sulfate, calcium chloride, magnesium chloride, magnesium sulfate, and potassium sulfate.
  • the solution compound may include at least one of nicotine, one or more flavorants, one or more organic acids (for example, organic acid compounds), water, and the like.
  • the solution compound may adjust the osmolarity of the pre-vapor formulation to be between about 200 milliosmoles per litre to about 500 milliosmoles per litre. In some example embodiments, the solution compound may adjust the osmolarity of the pre-vapor formulation to be between about 280 milliosmoles per litre to about 300 milliosmoles per litre. In some example embodiments, the solution compound may adjust the osmolarity of the pre-vapor formulation to be between about 290 milliosmoles per litre to about 310 milliosmoles per litre.
  • the one or more fluids may, in some example embodiments, include a fluid having an osmolarity between about 290 milliosmoles per litre to about 310 milliosmoles per litre, an osmolality between about 290 milliosmoles per kilogram to about 310 milliosmoles per kilogram, or both, such that the pre-vapor formulation may include one or more solution compounds that adjust tonicity of the pre-vapor formulation with regard to the one or more fluids.
  • ion exchange agents may include soluble polyelectrolyte polymers with a functional group, such as carboxylic acid groups, sulfonic acid groups such as sulphonated polystyrene, quaternary amino groups such as trimethyl ammonium, and other amino groups.
  • a functional group such as carboxylic acid groups, sulfonic acid groups such as sulphonated polystyrene, quaternary amino groups such as trimethyl ammonium, and other amino groups.
  • acids may protonate molecular nicotine in the pre-vapor formulation, so that upon heating of the pre-vapor formulation by a heater in the cartridge of the e-vaping device, a vapor having a majority amount of protonated nicotine and a minority amount of unprotonated nicotine may be produced, whereby only a minor portion of all the volatilized (vaporized) nicotine may remain in the gas phase of the vapor.
  • the pre-vapor formulation may include up to 5 percent of nicotine, the proportion of nicotine in the gas phase of the vapor may be substantially 1 percent or less of the total nicotine delivered.
  • a solution compound is soluble in the pre-vapor formulation.
  • one or more solution compounds may be soluble in a solvent that includes at least one of water, propylene glycol, and glycerin.
  • one or more acids present in a pre-vapor formulation may be configured to transfer into a vapor generated based on heating of the pre-vapor formulation.
  • Transfer efficiency of an acid is the ratio of the mass fraction of the acid in the vapor to the mass fraction of the acid in the pre-vapor formulation.
  • an acid or combination of acids present in the pre-vapor formulation may have a liquid to vapor transfer efficiency of about 50 percent or greater, and for example about 60 percent or greater.
  • the pre-vapor formulation may include one or more of pyruvic acid, tartaric acid and acetic acid that have vapor transfer efficiencies of about 50 percent or greater, respectively.
  • one or more acids present in the pre-vapor formulation may include one or more of pyruvic acid, formic acid, oxalic acid, glycolic acid, acetic acid, isovaleric acid, valeric acid, propionic acid, octanoic acid, lactic acid, sorbic acid, malic acid, tartaric acid, succinic acid, citric acid, benzoic acid, oleic acid, aconitic acid, butyric acid, cinnamic acid, decanoic acid, 3,7-dimethyl-6-octenoic acid, 1-glutamic acid, heptanoic acid, hexanoic acid, 3-hexenoic acid, trans-2-hexenoic acid, isobutyric acid, lauric acid, 2- methylbutyric acid, 2-methylvaleric acid, myristic acid, nonanoic acid, palmitic acid, 4-pentenoic acid, phenylacetic acid, 3-phenyl

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Medicinal Preparation (AREA)
  • Manufacture Of Tobacco Products (AREA)
  • Catching Or Destruction (AREA)
  • Cosmetics (AREA)
  • Detergent Compositions (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
EP18703309.7A 2017-02-03 2018-02-02 Methods and systems for improving stability of pre-vapor formulations of e-vaping devices Pending EP3576552A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US15/423,699 US20180220697A1 (en) 2017-02-03 2017-02-03 Methods and systems for improving stability of pre-vapor formulations of e-vaping devices
PCT/EP2018/052717 WO2018141941A2 (en) 2017-02-03 2018-02-02 Methods and systems for improving stability of pre-vapor formulations of e-vaping devices

Publications (1)

Publication Number Publication Date
EP3576552A2 true EP3576552A2 (en) 2019-12-11

Family

ID=61163721

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18703309.7A Pending EP3576552A2 (en) 2017-02-03 2018-02-02 Methods and systems for improving stability of pre-vapor formulations of e-vaping devices

Country Status (10)

Country Link
US (1) US20180220697A1 (ru)
EP (1) EP3576552A2 (ru)
JP (1) JP7208899B2 (ru)
KR (1) KR102649834B1 (ru)
CN (1) CN110167365B (ru)
CA (1) CA3041189A1 (ru)
IL (1) IL268072A (ru)
MX (1) MX2019008845A (ru)
RU (1) RU2751668C2 (ru)
WO (1) WO2018141941A2 (ru)

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US10117463B2 (en) * 2014-01-03 2018-11-06 Robert P Thomas, Jr. Vapor delivery device
WO2018198152A1 (ja) * 2017-04-24 2018-11-01 日本たばこ産業株式会社 エアロゾル生成装置並びにエアロゾル生成装置の制御方法及びプログラム
KR20210119488A (ko) * 2019-01-25 2021-10-05 차이나 토바코 후난 인더스트리얼 코포레이션 리미티드 수계 전자 담배 액체
KR20220117268A (ko) * 2019-12-18 2022-08-23 필립모리스 프로덕츠 에스.에이. 에어로졸 발생 시스템에 사용하기 위한 제형
JP2023507455A (ja) * 2019-12-18 2023-02-22 フィリップ・モーリス・プロダクツ・ソシエテ・アノニム エアロゾル発生システムで使用するための製剤
WO2023058750A1 (ja) * 2021-10-08 2023-04-13 日本たばこ産業株式会社 霧化用液体およびその製造方法

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CN102349699B (zh) * 2011-07-04 2013-07-03 郑俊祥 一种电子烟液的制备方法
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CN104068470A (zh) * 2014-07-07 2014-10-01 嘉兴市得百科新材料科技有限公司 一种电子烟液溶剂及其制备方法
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CN104256885B (zh) * 2014-08-05 2015-12-30 云南中烟工业有限责任公司 一种电子烟烟液溶剂
CN104655778B (zh) * 2015-02-16 2016-06-15 国家烟草质量监督检验中心 一种用于测定电子烟烟液及气溶胶中18种挥发及半挥发性有机物含量的方法
GB201516729D0 (en) * 2015-09-22 2015-11-04 The Technology Partnership Plc Liquid nicotine formulation
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Also Published As

Publication number Publication date
CN110167365A (zh) 2019-08-23
CN110167365B (zh) 2023-01-03
WO2018141941A2 (en) 2018-08-09
WO2018141941A3 (en) 2018-12-20
KR102649834B1 (ko) 2024-03-21
RU2019127181A3 (ru) 2021-05-21
IL268072A (en) 2019-09-26
RU2751668C2 (ru) 2021-07-15
RU2019127181A (ru) 2021-03-03
JP7208899B2 (ja) 2023-01-19
MX2019008845A (es) 2019-09-11
JP2020504999A (ja) 2020-02-20
US20180220697A1 (en) 2018-08-09
CA3041189A1 (en) 2018-08-09
KR20190114964A (ko) 2019-10-10

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