EP4503973A4 - HOLLOW ACETATE TUBE FILTERS WITH HIGH HARDNESS VALUES - Google Patents

HOLLOW ACETATE TUBE FILTERS WITH HIGH HARDNESS VALUES

Info

Publication number
EP4503973A4
EP4503973A4 EP23785588.7A EP23785588A EP4503973A4 EP 4503973 A4 EP4503973 A4 EP 4503973A4 EP 23785588 A EP23785588 A EP 23785588A EP 4503973 A4 EP4503973 A4 EP 4503973A4
Authority
EP
European Patent Office
Prior art keywords
cellulose acetate
filters made
hollow filters
hardness
tubing
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
EP23785588.7A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP4503973A1 (en
Inventor
Blasco Pablo Verdu
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.)
Eastman Chemical Co
Original Assignee
Eastman Chemical Co
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 Eastman Chemical Co filed Critical Eastman Chemical Co
Publication of EP4503973A1 publication Critical patent/EP4503973A1/en
Publication of EP4503973A4 publication Critical patent/EP4503973A4/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
    • 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
    • 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
    • A24D1/16—Bands for cigars or 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
    • A24D1/20—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
    • A24D3/04—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 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
    • A24D3/062—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 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
    • A24D3/14—Use of materials for tobacco smoke filters of organic materials as additive
    • 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
EP23785588.7A 2022-04-08 2023-04-05 HOLLOW ACETATE TUBE FILTERS WITH HIGH HARDNESS VALUES Pending EP4503973A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US202263362675P 2022-04-08 2022-04-08
PCT/US2023/065363 WO2023196840A1 (en) 2022-04-08 2023-04-05 Hollow acetate tube filters having high hardness values

Publications (2)

Publication Number Publication Date
EP4503973A1 EP4503973A1 (en) 2025-02-12
EP4503973A4 true EP4503973A4 (en) 2026-03-18

Family

ID=88243607

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23785588.7A Pending EP4503973A4 (en) 2022-04-08 2023-04-05 HOLLOW ACETATE TUBE FILTERS WITH HIGH HARDNESS VALUES

Country Status (6)

Country Link
US (1) US20250241361A1 (https=)
EP (1) EP4503973A4 (https=)
JP (1) JP2025511870A (https=)
KR (1) KR20240174110A (https=)
CN (1) CN119012928A (https=)
WO (1) WO2023196840A1 (https=)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA695448A (en) * 1964-10-06 P. Mika John Manufacture of artificial filaments with a channel separating bulbous portions
DE102019135114A1 (de) * 2019-12-19 2021-06-24 Cerdia International GmbH Filter- und/oder füllmaterial für mundstücke zur verwendung mit rauchwaren oder hnb-produkten, mundstücke und zigarettenfilter mit einem solchen filter- und/oder füllmaterial sowie verfahren zur herstellung eines solchen filter- und/oder füllmaterials
EP3422876B1 (en) * 2016-02-29 2021-10-20 Philip Morris Products S.A. Smoking article having filter with hollow tube segment

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5831981A (ja) * 1981-08-20 1983-02-24 ダイセル化学工業株式会社 たばこ煙のフイルタ−
EP0709037B1 (en) * 1994-10-31 2001-05-02 Daicel Chemical Industries, Ltd. A tobacco filter material and a tobacco filter as produced using the same
US8397733B2 (en) * 2010-01-15 2013-03-19 Celanese Acetate Llc Degradable cigarette filter: pill with multilayered coating
US20190098928A1 (en) * 2017-10-02 2019-04-04 Essentra Filter Products, Inc. Smoking article filter
CN110353303A (zh) * 2018-04-09 2019-10-22 上海烟草集团有限责任公司 一种异形同轴芯滤棒及其制作方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA695448A (en) * 1964-10-06 P. Mika John Manufacture of artificial filaments with a channel separating bulbous portions
EP3422876B1 (en) * 2016-02-29 2021-10-20 Philip Morris Products S.A. Smoking article having filter with hollow tube segment
DE102019135114A1 (de) * 2019-12-19 2021-06-24 Cerdia International GmbH Filter- und/oder füllmaterial für mundstücke zur verwendung mit rauchwaren oder hnb-produkten, mundstücke und zigarettenfilter mit einem solchen filter- und/oder füllmaterial sowie verfahren zur herstellung eines solchen filter- und/oder füllmaterials

Also Published As

Publication number Publication date
JP2025511870A (ja) 2025-04-16
WO2023196840A1 (en) 2023-10-12
EP4503973A1 (en) 2025-02-12
KR20240174110A (ko) 2024-12-16
US20250241361A1 (en) 2025-07-31
CN119012928A (zh) 2024-11-22

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