EP4337033A4 - AEROSOL-GENERATING ARTICLE AND AEROSOL-GENERATING DEVICE COMPRISING SAME - Google Patents

AEROSOL-GENERATING ARTICLE AND AEROSOL-GENERATING DEVICE COMPRISING SAME

Info

Publication number
EP4337033A4
EP4337033A4 EP22807889.5A EP22807889A EP4337033A4 EP 4337033 A4 EP4337033 A4 EP 4337033A4 EP 22807889 A EP22807889 A EP 22807889A EP 4337033 A4 EP4337033 A4 EP 4337033A4
Authority
EP
European Patent Office
Prior art keywords
aerosol
generating
same
generating device
article
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
EP22807889.5A
Other languages
German (de)
French (fr)
Other versions
EP4337033A1 (en
Inventor
Seok Su Jang
Dae Nam HAN
Dong Sung Kim
Yong Hwan Kim
Seung Won Lee
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.)
KT&G Corp
Original Assignee
KT&G Corp
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 KT&G Corp filed Critical KT&G Corp
Publication of EP4337033A1 publication Critical patent/EP4337033A1/en
Publication of EP4337033A4 publication Critical patent/EP4337033A4/en
Pending legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES OF 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
    • A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
    • A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
    • A24C5/14—Machines of the continuous-rod type
    • A24C5/18—Forming the rod
    • A24C5/1885—Forming the rod for cigarettes with an axial air duct
    • 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
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES OF CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D1/00—Cigars; Cigarettes
    • A24D1/02—Cigars; Cigarettes with special covers
    • A24D1/027—Cigars; Cigarettes with special covers with ventilating means, e.g. perforations
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES OF CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D1/00—Cigars; Cigarettes
    • A24D1/04—Cigars; Cigarettes with mouthpieces or filter-tips
    • A24D1/045—Cigars; Cigarettes with mouthpieces or filter-tips with smoke filter means
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES OF 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 OF CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter tips or filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces of cigars or cigarettes
    • A24D3/02—Manufacture of tobacco smoke filters
    • A24D3/0275—Manufacture of tobacco smoke filters for filters with special features
    • A24D3/0279—Manufacture of tobacco smoke filters for filters with special features with tubes
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES OF CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter tips or filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces of cigars or cigarettes
    • A24D3/02—Manufacture of tobacco smoke filters
    • A24D3/0275—Manufacture of tobacco smoke filters for filters with special features
    • A24D3/0287—Manufacture of tobacco smoke filters for filters with special features for composite filters
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES OF CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter tips or filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces of cigars or cigarettes
    • A24D3/04—Tobacco smoke filters characterised by their shape or structure
    • A24D3/048—Tobacco smoke filters characterised by their shape or structure containing additives
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES OF CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter tips or filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces of cigars or cigarettes
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/061—Use of materials for tobacco smoke filters containing additives entrapped within capsules, sponge-like material or the like, for further release upon smoking
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES OF CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter tips or filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces of cigars or cigarettes
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/08—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent
    • A24D3/10—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent of cellulose or cellulose derivatives
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES OF CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter tips or filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces of cigars or cigarettes
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/16—Use of materials for tobacco smoke filters of inorganic materials
    • A24D3/163—Carbon
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/10—Devices using liquid inhalable precursors
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/20—Devices using solid inhalable precursors
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/30—Devices using two or more structurally separated inhalable precursors, e.g. using two liquid precursors in two cartridges
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/46—Shape or structure of electric heating means
    • 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
    • A24F40/50—Control or monitoring

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
EP22807889.5A 2021-05-14 2022-05-13 AEROSOL-GENERATING ARTICLE AND AEROSOL-GENERATING DEVICE COMPRISING SAME Pending EP4337033A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020210063011A KR102713417B1 (en) 2021-05-14 2021-05-14 Aerosol generating article and aerosol generating device having the same
PCT/KR2022/006904 WO2022240242A1 (en) 2021-05-14 2022-05-13 Aerosol-generating article and aerosol-generating device having same

Publications (2)

Publication Number Publication Date
EP4337033A1 EP4337033A1 (en) 2024-03-20
EP4337033A4 true EP4337033A4 (en) 2025-04-23

Family

ID=84028699

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22807889.5A Pending EP4337033A4 (en) 2021-05-14 2022-05-13 AEROSOL-GENERATING ARTICLE AND AEROSOL-GENERATING DEVICE COMPRISING SAME

Country Status (7)

Country Link
US (1) US20240164439A1 (en)
EP (1) EP4337033A4 (en)
JP (1) JP7721675B2 (en)
KR (1) KR102713417B1 (en)
CN (1) CN117082988B (en)
CA (1) CA3213806A1 (en)
WO (1) WO2022240242A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102914131B1 (en) * 2022-12-23 2026-01-19 주식회사 케이티앤지 Aerosol generating article
CN116603140A (en) * 2023-03-26 2023-08-18 北京中普济世中医药科技发展有限公司 Particle inhalable herbal health product and health device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190021392A1 (en) * 2015-09-03 2019-01-24 Philip Morris Products S.A. Aerosol-generating article and low resistance support element for use as segment in an aerosol-generating article
WO2020089119A1 (en) * 2018-10-29 2020-05-07 Nerudia Limited Smoking substitute consumable
US20200345066A1 (en) * 2018-11-16 2020-11-05 Kt&G Corporation Apparatus and system for generating aerosols
CN112568489A (en) * 2020-12-17 2021-03-30 云南中烟工业有限责任公司 Support cooling unit with reconstituted tobacco sheets as inner pipe and heating cigarette comprising same
CN112617298A (en) * 2021-01-19 2021-04-09 河南中烟工业有限责任公司 Heating appliance for heating cigarettes by lateral air inflow

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0616699B2 (en) * 1985-09-04 1994-03-09 日本たばこ産業株式会社 Tobacco smoke filter
US20110271968A1 (en) * 2010-05-07 2011-11-10 Carolyn Rierson Carpenter Filtered Cigarette With Modifiable Sensory Characteristics
CN111713750B (en) * 2016-12-16 2023-09-05 韩国烟草人参公社 Aerosol Generating System
KR20180070450A (en) * 2016-12-16 2018-06-26 주식회사 케이티앤지 Article for generating aerosols
KR102116961B1 (en) * 2017-07-21 2020-06-02 주식회사 아모센스 heater assembly for cylinderical type electronic cigarette and cylinderical type electronic cigarette including the same
CN207341181U (en) * 2017-10-23 2018-05-11 景隆嘴棒（深圳）新型材料研发科技有限公司 A kind of electrically heated cigarette
RU184342U1 (en) * 2017-10-24 2018-10-22 Бритиш Америкэн Тобэкко (Инвестментс) Лимитед PRODUCT FOR USE IN THE DEVICE FOR HEATING SMOKING MATERIAL
JP6840289B2 (en) * 2017-10-30 2021-03-10 ケイティー アンド ジー コーポレイション Aerosol generator
CN208540741U (en) * 2018-06-29 2019-02-26 河南中烟工业有限责任公司 Aerosol-generating articles and systems
AU2019236899B2 (en) * 2018-08-16 2023-01-19 Yunnan Xike Science & Technology Co., Ltd. Integrally formed heat-not-burn smoking product and preparation method therefor
KR102389825B1 (en) * 2018-10-17 2022-04-25 주식회사 케이티앤지 Article for generating aerosols
EP3881698B1 (en) * 2018-11-14 2025-01-01 Japan Tobacco Inc. Non-combustion-heated smoking product and non-combustion-heated smoking system
CN109691697B (en) * 2019-03-01 2021-07-30 南通醋酸纤维有限公司 Aerosol generating product, preparation method and application
CN110250560A (en) * 2019-05-21 2019-09-20 云南中烟工业有限责任公司 A hollow support element containing a hollow cooling component and a cigarette containing the same
KR20200144049A (en) * 2019-06-17 2020-12-28 주식회사 케이티앤지 An aerosol generating device and an aerosol generating article
CN110372916B (en) * 2019-06-27 2021-03-12 广东中烟工业有限责任公司 Starch-based cooling material and application thereof
GB2588212B (en) * 2019-10-16 2024-05-29 Essentra Filter Products Dev Co Pte Ltd A cooling element
CN212678333U (en) * 2020-04-30 2021-03-12 湖北中烟工业有限责任公司 Heated smokable articles and heat not burn systems
JP6869411B1 (en) * 2020-09-07 2021-05-12 日本たばこ産業株式会社 Controller for aspirator
CN112137162B (en) * 2020-10-13 2024-05-14 云南养瑞科技集团有限公司 Granular heating non-combustible tobacco product and preparation method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190021392A1 (en) * 2015-09-03 2019-01-24 Philip Morris Products S.A. Aerosol-generating article and low resistance support element for use as segment in an aerosol-generating article
WO2020089119A1 (en) * 2018-10-29 2020-05-07 Nerudia Limited Smoking substitute consumable
US20200345066A1 (en) * 2018-11-16 2020-11-05 Kt&G Corporation Apparatus and system for generating aerosols
CN112568489A (en) * 2020-12-17 2021-03-30 云南中烟工业有限责任公司 Support cooling unit with reconstituted tobacco sheets as inner pipe and heating cigarette comprising same
CN112617298A (en) * 2021-01-19 2021-04-09 河南中烟工业有限责任公司 Heating appliance for heating cigarettes by lateral air inflow

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2022240242A1 *

Also Published As

Publication number Publication date
KR20220155622A (en) 2022-11-24
CN117082988A (en) 2023-11-17
KR102713417B1 (en) 2024-10-07
WO2022240242A1 (en) 2022-11-17
CN117082988B (en) 2026-02-17
EP4337033A1 (en) 2024-03-20
US20240164439A1 (en) 2024-05-23
CA3213806A1 (en) 2022-11-17
JP7721675B2 (en) 2025-08-12
JP2024515813A (en) 2024-04-10

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