WO2004086888A3 - Filters including segmented monolithic sorbent for gas-phase filtration - Google Patents

Filters including segmented monolithic sorbent for gas-phase filtration Download PDF

Info

Publication number
WO2004086888A3
WO2004086888A3 PCT/IB2004/001368 IB2004001368W WO2004086888A3 WO 2004086888 A3 WO2004086888 A3 WO 2004086888A3 IB 2004001368 W IB2004001368 W IB 2004001368W WO 2004086888 A3 WO2004086888 A3 WO 2004086888A3
Authority
WO
WIPO (PCT)
Prior art keywords
filter
monolithic sorbent
gas
sorbent
filters including
Prior art date
Application number
PCT/IB2004/001368
Other languages
French (fr)
Other versions
WO2004086888A2 (en
Inventor
Shuzhong Zhuang
Jay A Fournier
John B Paine Iii
Timothy S Sherwood
Kent B Koller
Zhaohua Luan
Charles E Thomas Jr
Original Assignee
Philip Morris Prod
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 Prod filed Critical Philip Morris Prod
Publication of WO2004086888A2 publication Critical patent/WO2004086888A2/en
Publication of WO2004086888A3 publication Critical patent/WO2004086888A3/en

Links

Classifications

    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24DCIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/06Use of materials for tobacco smoke filters
    • A24D3/16Use of materials for tobacco smoke filters of inorganic materials
    • A24D3/163Carbon
    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24DCIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/04Tobacco smoke filters characterised by their shape or structure
    • A24D3/048Tobacco smoke filters characterised by their shape or structure containing additives
    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24DCIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/06Use of materials for tobacco smoke filters
    • A24D3/08Use of materials for tobacco smoke filters of organic materials as carrier or major constituent
    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24DCIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/06Use of materials for tobacco smoke filters
    • A24D3/16Use of materials for tobacco smoke filters of inorganic materials
    • A24D3/166Silicic acid or silicates
    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24DCIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/17Filters specially adapted for simulated smoking devices

Abstract

A filter includes at least two monolithic sorbent segments and a mixing segment between the two monolithic sorbent segments. The monolithic sorbent segments comprise porous sorbent materials that are capable of selectively removing one or more selected gaseous constituents from a gas flow. The filter can be incorporated in a smoking article, such as a cigarette, to remove one or more selected constituents from mainstream smoke. Methods for making the filter and smoking articles including the filter, as well as methods for smoking a cigarette comprising the filter, are also provided.
PCT/IB2004/001368 2003-04-02 2004-04-02 Filters including segmented monolithic sorbent for gas-phase filtration WO2004086888A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/404,441 US6814786B1 (en) 2003-04-02 2003-04-02 Filters including segmented monolithic sorbent for gas-phase filtration
US10/404,441 2003-04-02

Publications (2)

Publication Number Publication Date
WO2004086888A2 WO2004086888A2 (en) 2004-10-14
WO2004086888A3 true WO2004086888A3 (en) 2005-05-12

Family

ID=33130473

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2004/001368 WO2004086888A2 (en) 2003-04-02 2004-04-02 Filters including segmented monolithic sorbent for gas-phase filtration

Country Status (2)

Country Link
US (1) US6814786B1 (en)
WO (1) WO2004086888A2 (en)

Families Citing this family (58)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0019417D0 (en) * 2000-08-09 2000-09-27 Mat & Separations Tech Int Ltd Mesoporous carbons
US8591855B2 (en) * 2000-08-09 2013-11-26 British American Tobacco (Investments) Limited Porous carbons
DE10252823A1 (en) * 2002-11-13 2004-06-09 Biotec Biologische Naturverpackungen Gmbh & Co. Kg filter element
US7856990B2 (en) * 2003-09-30 2010-12-28 R. J. Reynolds Tobacco Company Filtered cigarette incorporating an adsorbent material
US7669604B2 (en) * 2003-09-30 2010-03-02 R.J. Reynolds Tobacco Company Filtered cigarette incorporating an adsorbent material
US7448392B2 (en) * 2003-12-22 2008-11-11 Philip Morris Usa Inc. Smoking articles and filters with carbon-coated molecular sieve sorbent
US20050133049A1 (en) * 2003-12-22 2005-06-23 Philip Morris Usa Inc. Smoking articles and filters including zeolite molecular sieve sorbent
US20050241479A1 (en) * 2004-04-28 2005-11-03 Foamex L.P. Filter materials for absorbing hydrocarbons
US7597745B2 (en) * 2004-04-28 2009-10-06 Foamex Innovations Operating Company Filter materials for adsorbing hydrocarbons
US20050247323A1 (en) * 2004-05-10 2005-11-10 Brown & Williamson Tobacco Corporation Selective filtration of cigarette smoke using chitosan derivatives
US20060112964A1 (en) * 2004-11-10 2006-06-01 Philip Morris Usa Inc. Capsuled adsorbent flavored filter
US8408216B2 (en) * 2004-12-22 2013-04-02 Philip Morris Usa Inc. Flavor carrier for use in smoking articles
US20060185687A1 (en) * 2004-12-22 2006-08-24 Philip Morris Usa Inc. Filter cigarette and method of making filter cigarette for an electrical smoking system
US20060260626A1 (en) * 2005-01-05 2006-11-23 Philip Morris Usa Inc. Activated carbons with molecular sieve membranes and their use as adsorbents in smoking articles
US7503960B2 (en) * 2005-03-15 2009-03-17 Philip Morris Usa Inc. Smoking articles and filters with carbon fiber composite molecular sieve sorbent
GB0506278D0 (en) * 2005-03-29 2005-05-04 British American Tobacco Co Porous carbon materials and smoking articles and smoke filters therefor incorporating such materials
AU2006228283B2 (en) * 2005-03-29 2009-09-17 British American Tobacco (Investments) Limited Porous carbon materials and smoking articles and smoke filters therefor incorporating such materials
US7767134B2 (en) * 2005-06-29 2010-08-03 Philip Morris Usa Inc. Templated carbon monolithic tubes with shaped micro-channels and method for making the same
US20070215167A1 (en) 2006-03-16 2007-09-20 Evon Llewellyn Crooks Smoking article
US10188140B2 (en) 2005-08-01 2019-01-29 R.J. Reynolds Tobacco Company Smoking article
US7987856B2 (en) 2005-12-29 2011-08-02 Philip Morris Usa Inc. Smoking article with bypass channel
US8240315B2 (en) 2005-12-29 2012-08-14 Philip Morris Usa Inc. Smoking article with improved delivery profile
US9220301B2 (en) 2006-03-16 2015-12-29 R.J. Reynolds Tobacco Company Smoking article
EP2007233B1 (en) * 2006-03-28 2019-08-14 Philip Morris Products S.A. Smoking article with a restrictor
US8353298B2 (en) 2006-07-12 2013-01-15 Philip Morris Usa Inc. Smoking article with impaction filter segment
US8424539B2 (en) 2006-08-08 2013-04-23 Philip Morris Usa Inc. Smoking article with single piece restrictor and chamber
US8235056B2 (en) 2006-12-29 2012-08-07 Philip Morris Usa Inc. Smoking article with concentric hollow core in tobacco rod and capsule containing flavorant and aerosol forming agents in the filter system
TW200911141A (en) 2007-03-09 2009-03-16 Philip Morris Prod Super recessed filter cigarette restrictor
TW200911138A (en) 2007-03-09 2009-03-16 Philip Morris Prod Smoking articles with restrictor and aerosol former
TW200900014A (en) 2007-03-09 2009-01-01 Philip Morris Prod Smoking article filter with annular restrictor and downstream ventilation
US20080314400A1 (en) * 2007-05-31 2008-12-25 Philip Morris Usa Inc. Filter including electrostatically charged fiber material
US7909913B2 (en) * 2008-07-17 2011-03-22 Air Products And Chemicals, Inc. Gas purification by adsorption of hydrogen sulfide
US8424540B2 (en) 2009-10-09 2013-04-23 Philip Morris Usa Inc. Smoking article with valved restrictor
US8534294B2 (en) 2009-10-09 2013-09-17 Philip Morris Usa Inc. Method for manufacture of smoking article filter assembly including electrostatically charged fiber
AR080556A1 (en) 2009-10-09 2012-04-18 Philip Morris Prod FILTER DESIGN TO IMPROVE THE SENSORY PROFILE OF ARTICLES FOR SMOKING WITH CARBON FILTER NOZZLE
US8905037B2 (en) 2009-10-15 2014-12-09 Philip Morris Inc. Enhanced subjective activated carbon cigarette
US9138016B2 (en) 2010-03-26 2015-09-22 Philip Morris Usa Inc. Smoking articles with significantly reduced gas vapor phase smoking constituents
EP2630879B1 (en) * 2010-10-20 2016-09-07 Japan Tobacco, Inc. Menthol-impregnated activated carbon, cigarette filter, and filter cigarette
GB201109419D0 (en) * 2011-06-06 2011-07-20 British American Tobacco Co Filter for a smoking article
US20130255308A1 (en) * 2012-03-29 2013-10-03 Johnson Controls Technology Company Chiller or heat pump with a falling film evaporator and horizontal oil separator
DE202012103319U1 (en) * 2012-08-31 2012-10-11 Lehmann Tabak - Logistik - Fulfillment UG (haftungsbeschränkt) Filter device, flue, their use and system for this purpose
ES2482490B1 (en) 2012-12-21 2015-05-19 Universidad De Alicante SAB-15 aluminosilicate as an additive for the reduction of toxic and carcinogenic compounds present in tobacco smoke
CN103783667B (en) * 2014-03-07 2016-05-04 上海华宝生物科技有限公司 There is the air filter stick that increases the solid matrix of resistance
GB201407642D0 (en) 2014-04-30 2014-06-11 British American Tobacco Co Aerosol-cooling element and arrangements for apparatus for heating a smokable material
JP6218948B2 (en) * 2014-08-07 2017-10-25 日本たばこ産業株式会社 Cigarette with filter
GB201418817D0 (en) 2014-10-22 2014-12-03 British American Tobacco Co Apparatus and method for generating an inhalable medium, and a cartridge for use therewith
GB201503411D0 (en) 2015-02-27 2015-04-15 British American Tobacco Co Apparatus and method for generating an inhalable medium, and a cartridge for use therewith
EP3261467B1 (en) 2015-02-27 2022-03-30 Nicoventures Trading Limited Cartridge, components and methods for generating an inhalable medium
CN105077576A (en) * 2015-09-01 2015-11-25 云南中烟工业有限责任公司 Three-component-unit compounding filter tip rod
GB201517471D0 (en) 2015-10-02 2015-11-18 British American Tobacco Co Apparatus for generating an inhalable medium
WO2018033477A1 (en) 2016-08-17 2018-02-22 Philip Morris Products S.A. Aerosol-generating article having improved wrapper
CN106418683B (en) * 2016-09-27 2019-09-10 湖北中烟工业有限责任公司 A kind of solid tobacco aromaticss piece and preparation method thereof
GB201618481D0 (en) 2016-11-02 2016-12-14 British American Tobacco Investments Ltd Aerosol provision article
CN107536100B (en) * 2017-09-26 2022-12-30 南通烟滤嘴有限责任公司 Heating non-combustion cigarette with cavity type container section
EP3700376B1 (en) * 2017-10-25 2022-08-24 Philip Morris Products S.A. Inhaler with boundary element
EP3613299A1 (en) * 2018-08-20 2020-02-26 Gongqingcheng Daole Investment Management Partnership (LLP) Filter rod, cigarette, and method of manufacturing a filter rod
US11291242B2 (en) 2019-08-28 2022-04-05 Aiger Group Ag Apparatus and method for forming a smoke filter
CN113558290A (en) * 2021-08-26 2021-10-29 上海烟草集团有限责任公司 Method for reducing acetone in cigarette smoke

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3079926A (en) * 1958-10-24 1963-03-05 Harry R Litchfield Filters
US3744497A (en) * 1970-09-25 1973-07-10 Ivy Graphics & Planning Inc Cigarette filter
US3894545A (en) * 1972-11-13 1975-07-15 Brown & Williamson Tobacco Filters for tobacco smoke
US4036119A (en) * 1971-07-26 1977-07-19 Hauni-Werke Korber & Co., Kg Method and machine for the production of composite filter mouthpieces
EP1238594A2 (en) * 2001-03-05 2002-09-11 Ivo Pera Tobacco smoke filter and relative composition made of antioxidant and mineral substances
WO2003013287A1 (en) * 2001-08-02 2003-02-20 Japan Tobacco Inc. Filter for cigarette

Family Cites Families (55)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2881770A (en) 1954-05-27 1959-04-14 Eastman Kodak Co Fibrous tobacco smoke filters
US3006346A (en) * 1958-12-15 1961-10-31 Edwin I Golding Filters for cigarettes and cigars and method of manufacturing same
US3101723A (en) 1960-11-15 1963-08-27 Philip Morris Inc Fibrous cigarette filter
US3353543A (en) 1964-12-02 1967-11-21 American Filtrona Corp Smoke filter
US3388707A (en) * 1965-05-17 1968-06-18 Harris Walter Tobacco smoke filter
US3958579A (en) 1972-09-07 1976-05-25 Baker-Alpha Corporation Cigarette filter
US4038992A (en) * 1975-09-29 1977-08-02 The Japan Tobacco & Salt Public Corporation Granular composition for tobacco filter
US4226250A (en) * 1978-07-12 1980-10-07 Peterson Labs., Inc. Smoking system to filter tobacco smoke
FR2462111B1 (en) 1979-07-26 1988-08-12 Job Ets Bardou Job Pauilhac PROCESS FOR THE PRODUCTION OF A FILTERING STRUCTURE, IN PARTICULAR FOR CIGARETTER FILTERS AND FILTERS OBTAINED
DE3214948A1 (en) 1981-04-23 1982-11-25 Toho Beslon Co., Ltd., Tokyo METHOD FOR PRODUCING ACTIVATED CARBON FIBERS
US4481958A (en) 1981-08-25 1984-11-13 Philip Morris Incorporated Combustible carbon filter and smoking product
JPS59166073A (en) 1983-03-10 1984-09-19 東レ株式会社 Tobacco filter
US4753717A (en) 1985-03-25 1988-06-28 Kanebo Ltd. Porous article having open pores prepared from aromatic condensation polymer and use thereof
GB2175187B (en) 1985-04-22 1989-02-01 Cigarette Components Ltd Ventilated tobacco smoke filter
US4772508A (en) 1986-01-24 1988-09-20 Brassell Gilbert W Activated carbon-carbon composite of high surface area and high compressive strength
US4677995A (en) * 1986-02-24 1987-07-07 Philip Morris Incorporated Filter cigarette
GB8617831D0 (en) 1986-07-22 1986-08-28 British Petroleum Co Plc Production of porous shaped articles
US4933314A (en) 1987-03-10 1990-06-12 Kanebo Ltd. Molecular sieving carbon
US4820681A (en) 1987-12-24 1989-04-11 Allied-Signal Inc. Preparation of hydrophobic carbon molecular sieves
US5360023A (en) 1988-05-16 1994-11-01 R. J. Reynolds Tobacco Company Cigarette filter
US5191905A (en) 1990-03-16 1993-03-09 Costarica Sogo Kaihatsu Co., Ltd. Filter cigarette having filter containing absorptive synthetic graft polymer fibers produced from irradiated polyethylene reacted with vapor phase styrene or absorptive synthetic magnetic fibers
US5591368A (en) 1991-03-11 1997-01-07 Philip Morris Incorporated Heater for use in an electrical smoking system
RU2010545C1 (en) 1992-04-22 1994-04-15 Товарищество с ограниченной ответственностью "Сфинкс" Cigarette filter
GB9214267D0 (en) * 1992-07-04 1992-08-19 British American Tobacco Co Improvements relating to smoking articles
US5322075A (en) 1992-09-10 1994-06-21 Philip Morris Incorporated Heater for an electric flavor-generating article
US5692526A (en) 1992-09-11 1997-12-02 Philip Morris Incorporated Cigarette for electrical smoking system
US5692525A (en) 1992-09-11 1997-12-02 Philip Morris Incorporated Cigarette for electrical smoking system
US5499636A (en) 1992-09-11 1996-03-19 Philip Morris Incorporated Cigarette for electrical smoking system
US5666976A (en) 1992-09-11 1997-09-16 Philip Morris Incorporated Cigarette and method of manufacturing cigarette for electrical smoking system
US5404890A (en) 1993-06-11 1995-04-11 R. J. Reynolds Tobacco Company Cigarette filter
US5435326A (en) 1993-07-27 1995-07-25 R. J. Reynolds Tobacco Company Controlled delivery smoking article and method
US5389325A (en) 1993-09-24 1995-02-14 Corning Incorporated Activated carbon bodies having phenolic resin binder
US5510063A (en) 1994-04-15 1996-04-23 Corning Incorporated Method of making activated carbon honeycombs having varying adsorption capacities
US5733451A (en) * 1994-05-20 1998-03-31 Englehard/Icc Core for interacting with a fluid media flowing therethrough and method of making the same
US5632286A (en) 1994-06-21 1997-05-27 American Filtrona Corporation Crimped elements for cigarettes and the like and methods and apparatus for making same
US5732718A (en) 1994-08-23 1998-03-31 Schweitzer-Mauduit International, Inc. Selective filtration device
US5543096A (en) 1994-09-12 1996-08-06 Corning Incorporated Method for producing activated carbon bodies having silicone resin binder
US6030698A (en) 1994-12-19 2000-02-29 Lockheed Martin Energy Research Corporation Activated carbon fiber composite material and method of making
JP2766459B2 (en) 1994-12-26 1998-06-18 株式会社ノリタケカンパニーリミテド Adsorbent manufacturing method
TW377313B (en) 1995-02-27 1999-12-21 Corning Inc The method of making extruded structures
US5744421A (en) 1996-02-13 1998-04-28 Mega-Carbon Company Monolithic carbonaceous article
US5846639A (en) 1996-02-13 1998-12-08 Mega-Carbon Company Monolithic activated carbon
US5914294A (en) 1996-04-23 1999-06-22 Applied Ceramics, Inc. Adsorptive monolith including activated carbon and method for making said monlith
US5972253A (en) 1996-09-30 1999-10-26 University Of Kentucky Research Foundation Preparation of monolithic carbon fiber composite material
US5934289A (en) 1996-10-22 1999-08-10 Philip Morris Incorporated Electronic smoking system
US5827355A (en) 1997-01-31 1998-10-27 Lockheed Martin Energy Research Corporation Carbon fiber composite molecular sieve electrically regenerable air filter media
US6206007B1 (en) 1997-06-16 2001-03-27 Japan Tobacco Inc. Cigarette with a dual-structure filter
US6090477A (en) 1998-09-11 2000-07-18 Ut-Battelle, Llc Gas storage carbon with enhanced thermal conductivity
US6053176A (en) 1999-02-23 2000-04-25 Philip Morris Incorporated Heater and method for efficiently generating an aerosol from an indexing substrate
US6214204B1 (en) 1999-08-27 2001-04-10 Corning Incorporated Ion-removal from water using activated carbon electrodes
US6257242B1 (en) 1999-10-18 2001-07-10 Ioannis C. Stavridis Filter element
MY128157A (en) * 2000-04-20 2007-01-31 Philip Morris Prod High efficiency cigarette filters having shaped micro cavity fibers impregnated with adsorbent or absorbent materials
WO2002069745A1 (en) * 2001-02-22 2002-09-12 Philip Morris Products, Inc. Cigarette and filter with downstream flavor addition
US20030098030A1 (en) * 2001-08-01 2003-05-29 Brown & Williamson Tobacco Corporation Cigarette filter
US6863074B2 (en) * 2002-08-30 2005-03-08 Philip Morris Usa Inc. Cigarette filters comprising unfunctionalized porous polyaromatic resins for removing gas phase constituents from mainstream tobacco smoke

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3079926A (en) * 1958-10-24 1963-03-05 Harry R Litchfield Filters
US3744497A (en) * 1970-09-25 1973-07-10 Ivy Graphics & Planning Inc Cigarette filter
US4036119A (en) * 1971-07-26 1977-07-19 Hauni-Werke Korber & Co., Kg Method and machine for the production of composite filter mouthpieces
US3894545A (en) * 1972-11-13 1975-07-15 Brown & Williamson Tobacco Filters for tobacco smoke
EP1238594A2 (en) * 2001-03-05 2002-09-11 Ivo Pera Tobacco smoke filter and relative composition made of antioxidant and mineral substances
WO2003013287A1 (en) * 2001-08-02 2003-02-20 Japan Tobacco Inc. Filter for cigarette

Also Published As

Publication number Publication date
US6814786B1 (en) 2004-11-09
WO2004086888A2 (en) 2004-10-14

Similar Documents

Publication Publication Date Title
WO2004086888A3 (en) Filters including segmented monolithic sorbent for gas-phase filtration
WO2007069093A3 (en) Smoking articles with activated carbon and sodium bicarbonate-treated fibers and method of treating mainstream smoke
HRP20060157A2 (en) Smoking article and smoking article filter
BRPI0510809A (en) tobacco smoke filter, methods for smoke filtration, fluid flow filtration and for removing pyrolysis products from cigarette materials from cigarette smoke, tobacco smoke filtration medium, and methods for manufacturing a filter and to remove a gaseous component from a gas mixture
ATE546421T1 (en) SMOKE FILTERS CONTAINING POROUS CARBON MATERIALS AND SMOKE ARTICLES IN WHICH SUCH FILTERS ARE INCORPORATED
WO2006085142A3 (en) Flavor carrier for use in smoking articles
HK1074020A1 (en) Microporous filter media, filtration systems containing same, and methods of making and using
WO2009024866A3 (en) Multi-component filter for a smoking article
WO2004037387A3 (en) Filters and methods of making and using the same
WO2006100366A3 (en) Method and device for the separation of biological particles contained in a liquid by means of vertical filtration
MD1912B2 (en) Process for manufacture of the tobacco-smoke filter, filter, cigarette provided with the said filter and process for filtration of tobacco-smoke
MY110797A (en) Cigarette smoke filter system
DE60333058D1 (en) Process for producing porous, sintered metals for filters
AU2003262887A1 (en) Cigarette filters comprising unfunctionalized porous polyaromatic resins for removing gas phase constituents from mainstream tobacco smoke
DE60030615D1 (en) Combined welding and separation process for the production of a filter
WO2008081338A3 (en) Sealed cigarette filter
WO2011117759A3 (en) Methods for improving quality of mainstream smoke and multicomponent filters and smoking articles therefor
EP1839507A4 (en) Material for cigarette filer and cigarette filter
CA2711641A1 (en) Removal of nitrogen containing compounds from tobacco
HK1076584A1 (en) Filter, smoking articles containing the same, filter strands and methods and devices for producing filters and smoking articles of this type
CA2531808A1 (en) Improvements relating to smoking article filters
WO2004043174A3 (en) Filter element
WO2008073216A3 (en) Tobacco smoke filter and method for removal of aldehydes from tobacco smoke
WO2008073215A3 (en) Tobacco smoke filter material and process for the preparation thereof
WO2001003801A8 (en) Filter material used in gas filtration and having biocidal properties

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): BW GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase