EP4046502A4 - Cellulose acetate tow, filter comprising same, and aerosol-generating article comprising filter - Google Patents

Cellulose acetate tow, filter comprising same, and aerosol-generating article comprising filter Download PDF

Info

Publication number
EP4046502A4
EP4046502A4 EP21870545.7A EP21870545A EP4046502A4 EP 4046502 A4 EP4046502 A4 EP 4046502A4 EP 21870545 A EP21870545 A EP 21870545A EP 4046502 A4 EP4046502 A4 EP 4046502A4
Authority
EP
European Patent Office
Prior art keywords
filter
aerosol
same
cellulose acetate
generating 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
EP21870545.7A
Other languages
German (de)
French (fr)
Other versions
EP4046502A1 (en
Inventor
Min Hee Hwang
Man Seok Seo
Chang Jin Park
Ki Jin AHN
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
Priority claimed from KR1020200183613A external-priority patent/KR102666526B1/en
Application filed by KT&G Corp filed Critical KT&G Corp
Publication of EP4046502A1 publication Critical patent/EP4046502A1/en
Publication of EP4046502A4 publication Critical patent/EP4046502A4/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 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
    • 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 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
    • 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 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
    • A24D3/04—Tobacco smoke filters characterised by their shape or structure
    • 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
    • A24D3/04—Tobacco smoke filters characterised by their shape or structure
    • A24D3/043—Tobacco smoke filters characterised by their shape or structure with ventilation means, e.g. air dilution
    • 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
    • A24D3/04—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 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
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/062—Use of materials for tobacco smoke filters characterised by structural features
    • A24D3/063—Use of materials for tobacco smoke filters characterised by structural features of the fibers
    • 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
    • A24D3/06—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 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
    • A24D3/17—Filters specially adapted for simulated smoking devices
EP21870545.7A 2020-12-24 2021-10-18 Cellulose acetate tow, filter comprising same, and aerosol-generating article comprising filter Pending EP4046502A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020200183613A KR102666526B1 (en) 2020-12-24 Cellulose acetate tow, filter comprising the same, and aerosol-generating article comprising the filter
PCT/KR2021/014479 WO2022139141A1 (en) 2020-12-24 2021-10-18 Cellulose acetate tow, filter comprising same, and aerosol-generating article comprising filter

Publications (2)

Publication Number Publication Date
EP4046502A1 EP4046502A1 (en) 2022-08-24
EP4046502A4 true EP4046502A4 (en) 2023-01-04

Family

ID=81878193

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21870545.7A Pending EP4046502A4 (en) 2020-12-24 2021-10-18 Cellulose acetate tow, filter comprising same, and aerosol-generating article comprising filter

Country Status (4)

Country Link
US (1) US20240099364A1 (en)
EP (1) EP4046502A4 (en)
JP (1) JP7351585B2 (en)
WO (1) WO2022139141A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190075842A1 (en) * 2017-09-08 2019-03-14 Philip Caenen High dpf cellulose acetate tow and process for making
WO2019110747A1 (en) * 2017-12-07 2019-06-13 Philip Morris Products S.A. Aerosol-generating article having aerosol-generating substrate with dual plugs
US20200029616A1 (en) * 2017-06-09 2020-01-30 Philip Morris Products S.A. Aerosol-generating article having fibrous filter segment
WO2020249950A1 (en) * 2019-06-11 2020-12-17 Nicoventures Trading Limited A mouthpiece and an article for use in an aerosol provision system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101731319B1 (en) * 2014-12-05 2017-05-02 도레이케미칼 주식회사 Composition of tow for cigarette filter, Tow for cigarette filter and Manufacturing method thereof
GB201711534D0 (en) * 2017-07-18 2017-08-30 British American Tobacco Investments Ltd Tobacco constituent releasing components
KR20200061098A (en) * 2018-11-23 2020-06-02 주식회사 케이티앤지 cigarette for aerosol generating device and aerosol generating device using the cigarette
KR102177116B1 (en) 2020-05-22 2020-11-11 주식회사 케이티앤지 Manufacturing method and apparatus for cigarette filter

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200029616A1 (en) * 2017-06-09 2020-01-30 Philip Morris Products S.A. Aerosol-generating article having fibrous filter segment
US20190075842A1 (en) * 2017-09-08 2019-03-14 Philip Caenen High dpf cellulose acetate tow and process for making
WO2019110747A1 (en) * 2017-12-07 2019-06-13 Philip Morris Products S.A. Aerosol-generating article having aerosol-generating substrate with dual plugs
WO2020249950A1 (en) * 2019-06-11 2020-12-17 Nicoventures Trading Limited A mouthpiece and an article for use in an aerosol provision system

Also Published As

Publication number Publication date
JP7351585B2 (en) 2023-09-27
KR20220092142A (en) 2022-07-01
US20240099364A1 (en) 2024-03-28
EP4046502A1 (en) 2022-08-24
WO2022139141A1 (en) 2022-06-30
JP2023510674A (en) 2023-03-15

Similar Documents

Publication Publication Date Title
EP3591117A4 (en) Cellulose microfiber and method for manufacturing same
EP3128070A4 (en) Hydrophilized cellulose acetate tow band, and absorbent material produced using same
MX2014015903A (en) Degradable filter for smoking articles.
EP3117724A4 (en) Cellulose acetate tow band for use in cigarette filters, cigarette filter, tow band production apparatus, and tow band production method
EP3888475A4 (en) Seamless capsule, and filter and smoking device including same
EP4241584A3 (en) Filter material for a filter element of a smoking article and associated method
SG11202001769XA (en) High dpf cellulose acetate tow and process for making
EP3905905A4 (en) A smoking article comprising a tube filter and a method of manufacturing the same
EP3881687A4 (en) Filter segment, non-combustion heating type smoking article and non-combustion heating type smoking system
EP3862388A4 (en) Cellulose acetate and cellulose acetate composition
EP3225116A4 (en) Tow band of cellulose acetate fibers for cigarette filter, cigarette filter, tow band production device, and tow band production method
EP3715509A4 (en) Cellulose acetate fiber, cellulose acetate tow band, and method for producing cellulose acetate tow band
EP3949771A4 (en) Heat-not-burn smoking article, method for using same, and heat-not-burn smoking system
EP3965594A4 (en) Aerosol-generating article including tobacco sheet and aerosol-generating system using the same
EP3428327A4 (en) Cellulose acetate fibers, cellulose acetate composition, and method for producing same
EP3585732A4 (en) Activated rice husk filters, filter media, and methods
EP3986170A4 (en) Flavor containing sheet comprising modified cellulose and smoking article comprising the same
EP3985791A4 (en) Filter coupling unit and filter
EP3781284A4 (en) Filter cassette article, and filter comprising same
EP4140324A4 (en) Tobacco rod, aerosol-generating article comprising same, and aerosol-generating device used therewith
EP3946680A4 (en) Filter media, filters, and methods for making the same
EP3892123A4 (en) Aerosol-generating article with flavor optimizing function and aerosol-generating system comprising same
EP4046502A4 (en) Cellulose acetate tow, filter comprising same, and aerosol-generating article comprising filter
EP4085776A4 (en) Heater and smoking set comprising heater
EP3839113A4 (en) Cellulose acetate fiber, cellulose acetate tow band, and method for manufacturing cellulose acetate tow band

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: 20220331

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

REG Reference to a national code

Ref country code: DE

Ref legal event code: R079

Free format text: PREVIOUS MAIN CLASS: A24D0001040000

Ipc: A24D0001200000

A4 Supplementary search report drawn up and despatched

Effective date: 20221207

RIC1 Information provided on ipc code assigned before grant

Ipc: A24D 3/10 20060101ALI20221201BHEP

Ipc: A24D 3/06 20060101ALI20221201BHEP

Ipc: A24D 3/04 20060101ALI20221201BHEP

Ipc: A24D 1/20 20200101AFI20221201BHEP

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230526

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)