WO2003015544A1 - Filtre de cigarette - Google Patents

Filtre de cigarette Download PDF

Info

Publication number
WO2003015544A1
WO2003015544A1 PCT/US2002/024240 US0224240W WO03015544A1 WO 2003015544 A1 WO2003015544 A1 WO 2003015544A1 US 0224240 W US0224240 W US 0224240W WO 03015544 A1 WO03015544 A1 WO 03015544A1
Authority
WO
WIPO (PCT)
Prior art keywords
section
filter
cigarette filter
general
selective
Prior art date
Application number
PCT/US2002/024240
Other languages
English (en)
Inventor
James N. Figlar
Brian E. Tucker
F. Kelley St. Charles
Original Assignee
Brown & Williamson Tobacco Corporation
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 to MXPA04001044A priority Critical patent/MXPA04001044A/es
Priority to ES02756831T priority patent/ES2375106T3/es
Priority to US10/485,479 priority patent/US20040237984A1/en
Priority to IL16015002A priority patent/IL160150A0/xx
Priority to NZ531256A priority patent/NZ531256A/en
Priority to KR1020047001625A priority patent/KR100838207B1/ko
Priority to AU2002322811A priority patent/AU2002322811B2/en
Priority to AT02756831T priority patent/ATE527901T1/de
Priority to YUP-112/04A priority patent/RS51032B/sr
Priority to JP2003520314A priority patent/JP4028483B2/ja
Application filed by Brown & Williamson Tobacco Corporation filed Critical Brown & Williamson Tobacco Corporation
Priority to EA200400191A priority patent/EA005323B1/ru
Priority to CA002454820A priority patent/CA2454820C/fr
Priority to BRPI0211853-0A priority patent/BR0211853B1/pt
Priority to HU0401565A priority patent/HUP0401565A3/hu
Priority to APAP/P/2004/002985A priority patent/AP2134A/en
Priority to EP02756831A priority patent/EP1411784B8/fr
Publication of WO2003015544A1 publication Critical patent/WO2003015544A1/fr
Priority to IL160150A priority patent/IL160150A/en
Priority to NO20040452A priority patent/NO20040452L/no
Priority to ZA2004/01077A priority patent/ZA200401077B/en
Priority to HRP20040166AA priority patent/HRP20040166B1/hr

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
    • 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
    • A24D3/16—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 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
    • A24D3/12—Use of materials for tobacco smoke filters of ion exchange materials
    • 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
    • A24D3/16—Use of materials for tobacco smoke filters of inorganic materials

Definitions

  • the present invention relates to a cigarette filter that includes a smoke constituent adsorbent which, when combined with a carbon-based filtering material, demonstrates synergistic reductions in smoke vapor constituents.
  • Cigarettes include tobacco rods or columns which, when burned, produce a particulate and a vapor phase.
  • filters began to be attached to an end of the tobacco column.
  • the filter removed various smoke components.
  • the fibrous materials are not effective at removing volatile constituents, such as aldehydes, hydrogen cyanide and sulf ⁇ des, which are found in the vapor phase.
  • an adsorbent or absorbent is combined with the fibrous material to improve removal of the vapor phase components.
  • cigarette filters have included activated carbon, porous minerals such as meerschaum, silica gel, cation-exchange resins and anion-exchange resins.
  • Charcoal has a high specific surface area and is a relatively strong adsorbent for vapor-phase constituents of tobacco smoke. When coated with a mixture of metallic oxides, charcoal is particularly effective in removing acidic gases. Meerschaum has a large adsorption area with a strong adsorption affinity for charged species, but a considerably low adsorption affinity for non-polar species. Silica gels are generally regarded as weakly retentive adsorbents for vapor-phase constituents of tobacco smoke. Although silica gel readily adsorbs aldehydes and hydrogen cyanide, the constituents also readily desorb from the silica gel. Cation exchange resins have been proposed for nicotine removal.
  • Anion exchange resins have been proposed for the removal of smoke acids, but strongly basic anion exchangers have no effect on smoke vapor phase aldehydes.
  • Weakly basic anion-exchange resins of porous structure are suitable for the removal of smoke acids and aldehydes, but their efficiency diminishes during smoking, as does that of carbon and porous minerals.
  • Two or more adsorbents can be used in combination in cigarette filters.
  • U.S. Patent 2,815,760 describes the use of an ion exchange material with
  • the present invention relates to a cigarette filter that includes a multiple section filter which reduces the level of predetermined smoke constituents.
  • the filter consists of a fibrous filter plug located at the mouth-end of the cigarette, a section containing a selective adsorbent material, and a section containing a general adsorbent material.
  • the filter plug can be any filter plug known in the art, such as cellulose acetate tow.
  • the general adsorbent material is preferably selected from a group of relatively high surface area materials, such as activated charcoal, which are capable of adsorbing a range of chemical compounds without a high degree of specificity.
  • the selective adsorbent material is chosen based on the specific smoke constituents targeted for removal.
  • the selective adsorbent material is selected from a group of surface functionalized resins, wherein each resin consists of an essentially inert carrier with a surface area of greater than about 35 m 2 / g.
  • the selective adsorbent material has a phenol-formaldehyde resin matrix surface-functionalized with mainly primary and secondary amine functional groups.
  • the selective adsorbent material may be adjacent to a tobacco rod and the general adsorbent material positioned between the selective adsorbent section and the filter plug.
  • the general adsorbent material may be positioned adjacent to the tobacco rod and the selective adsorbent material between the general adsorbent section and the filter plug.
  • Preliminary data indicates that the former orientation produces a synergistic effect in smoke constituent reductions relative to the latter orientation.
  • selective adsorbent and general adsorbent may be interspersed in a traditional filter plug material, such as cellulose acetate, or the adsorbents may be packed as a bed or thin layer sections within filter plug material.
  • Figure 1 is a perspective view of a prior art filter-tipped cigarette
  • Figure 2 is a perspective view of a filter for a cigarette made in accordance with the present invention wherein the adsorbents are dispersed throughout a filter plug material, and the general adsorbent section is positioned between the filter plug and the selective adsorbent section;
  • Figure 3 is a perspective view of a filter for a cigarette made in accordance with the present invention wherein the adsorbents are dispersed throughout a filter plug material, and the selective adsorbent section is positioned between the filter plug and the general adsorbent section;
  • Figure 4 is a perspective view of a filter for a cigarette made in accordance with the present invention wherein the adsorbents are packed as beds within a segment of a filter plug material;
  • Figure 5 is a cross-sectional view of an embodiment of the present invention with the filter plug disposed between the general adsorbent section and the selective adsorbent section;
  • Figure 6 is a cross-sectional view of an embodiment of the present invention with the filter plug adjacent one end of a tobacco rod;
  • Figure 7 is a cross-sectional view of an embodiment of the present invention with the adsorbents being sectionalized in a single length of fibrous filter material; and, Figure 8 is a cross-sectional view of an embodiment of the present invention absent a filter plug section.
  • the cigarette filter of the present invention includes a multiple section filter which reduces the levels of predetermined smoke constituents.
  • the filter consists of a fibrous filter plug located at the mouth-end of the cigarette, a section containing a selective adsorbent material, and a section containing a general adsorbent material.
  • a typical filter-tipped cigarette 10 has a filter 30 attached to a tobacco rod 20.
  • the tobacco rod 20 consists of a loose tobacco-containing mixture 22 wrapped in a cigarette paper 24, and the filter 30 includes a filter plug 32 wrapped in a plug wrap 34.
  • a sheet of tipping paper 36 joins the filter 30 to the tobacco rod 20.
  • a cigarette 110 has a multiple
  • the filter 130 includes a filter plug
  • the filter plug 132 is adjacent a first or mouth end 131 of the filter
  • the bed of the selective adsorbent 136 is adjacent a second or tobacco-rod end
  • the bed of the general adsorbent 134 is positioned between the
  • the filter plug 132 is made from a filamentary or fibrous material and provides a clean, neat appearance at the mouth end 131 of the cigarette.
  • the filter plug 132 also retains a firmness at the mouth end 131 as the cigarette 110 is consumed.
  • the filter plug 132 can be made from a variety of materials, among the most common being cellulose, cellulose acetate tow, paper, cotton, polypropylene web, polypropylene tow, polyester web, polyester tow or combinations thereof.
  • a plasticizer may be included.
  • the general adsorbent section 134 includes a general adsorbent material 144
  • a filter plug material 142 such as in a "dual-dalmatian" filter
  • the general adsorbent material 144 is preferably selected from a
  • the general adsorbent for example, the general adsorbent
  • activated charcoal can be selected from activated charcoal, activated coconut carbon, activated coal-
  • Ambersorb 572 or Ambersorb 563 a carbonaceous resin derived from the pyrolysis of sulfonated styrene-divinylbenzene available from Rohm and
  • complexes may be included in the general adsorbent section.
  • the selective adsorbent section 136 includes a selective adsorbent material 146 dispersed throughout a filter plug material 142, such as in a "dual-dalmatian"
  • the selective adsorbent material 146 is preferably selected
  • the selective adsorbent material 146 may be an ion- exchange resin, such as Duolite A7 (available from Rohm and Haas, 5000 Richmond Street, Philadelphia, PA 19137), or a material having similar functional groups and binding affinities.
  • the Duolite A7 has a phenol-formaldehyde rsin matrix and is
  • adsorbent 146 are dependent on a number of variables, including how strongly the
  • the selective adsorbent 146 have a surface area of greater than about 35 m 2 / g so that there is minimal diffusional resistance and the surface area
  • adsorbent section 134 where other constituents may be retained by the adsorbent
  • the multiple section filter 110 is made having a filter plug 132 made of cellulose
  • acetate tow and being about 7 mm in length, and having a general adsorbent section
  • selective adsorbent section 136 consisting of 40 mg of Duolite A7 dispersed
  • pyridine hydrogen cyanide, hydrogen sulfide, styrene, 2-methylpropanal, benzene, propionaldehyde, furan, isoprene, 1,3-butadiene, crotonaldehyde, acetone, acrylonitrile, acetaldehyde, toluene, carbon disulfide, methyl ethyl ketone / butyraldehyde, propionaldehyde, acetonitrile, and methanol as compared to
  • the multiple section filter 130 has the filter plug 132
  • the general adsorbent section 134 is adjacent the tobacco-rod end
  • the smoke first passes through the general adsorbent section 134, then through
  • the multiple section filter 230 is essentially identical to the filter 130
  • FIG. 2 (Fig. 2) of the first example embodiment except that the general adsorbent section 134 is adjacent to the tobacco rod 20 and the selective adsorbent section 136 is
  • the absorbents 144, 146 are packed within the filter plug
  • the layer packed absorbents are exposed to less
  • plasticizer than the tow-dispersed absorbents and retain more surface area for
  • section filter 630 for a cigarette 610 includes the general adsorbent 344 and the
  • An advantage of the embodiment 110 of Figure 2 is that the smoke passes
  • the filter plug 132 is disposed between the
  • Fig. 5 the selective adsorbent section 136 is at the mouth end of the filter 430 and in Fig. 6 the general adsorbent
  • section 134 is at the mouth end of the filter 530. Moreover, as shown in Fig. 8, a
  • multiple section filter 730 of a cigarette 710 includes only a general absorbent
  • Example 1 A cigarette 110 with a multiple section filter 130 is prepared as shown in Figure 2 wherein a filter plug 132 is made of cellulose acetate tow and is
  • a general adsorbent section 134 consists of about 40 mg of
  • acetate tow 142 cut to deliver a section 134 about 10 mm in length, and a selective
  • adsorbent section 136 consists of about 40 mg of Duolite A7 dispersed throughout plasticizer-treated cellulose acetate tow 142 cut to deliver a section 136 about 10
  • the filter is attached to a tobacco rod having a length of about 56.5 mm and containing about 617 mg of a typical non-menthol cigarette blend wrapped
  • Example 2 A cigarette 210 with a multiple section filter 230 is prepared with the section orientations as shown in Figure 3 wherein the filter plug 132, the
  • Example 1 the selective adsorbent section 136 of Example 1.
  • the filter is attached to a
  • tobacco rod having a length of about 56.5 mm and containing about 617 mg of a
  • the cigarette delivers about 10.0 mg tar per cigarette.
  • Example 3 Cigarettes are prepared as in Example 1 except that about 20
  • Duolite A7 is used in the selective adsorbent section 136 instead of 40 mg.
  • cigarette delivers about 10.2 mg tar per cigarette.
  • Cigarettes are prepared as in Example 2 except that about 20 mg Duolite A7 is used in the selective adsorbent section 136 instead of 40 mg.
  • cigarette delivers about 10.9 mg tar per cigarette.
  • Example 5 Cigarettes are prepared as in Example 1 except that about 60
  • Duolite A7 is used in the selective adsorbent section 136 instead of 40 mg.
  • the cigarette delivers about 10.0 mg tar per cigarette.
  • Example 6 Cigarettes are prepared as in Example 2 except that about 60
  • Duolite A7 is used in the selective adsorbent section 136 instead of 40 mg.
  • the cigarette delivers about 10.3 mg tar per cigarette.
  • Cigarettes are prepared as in Example 1 except that about 69 mg of a mineral-based charcoal made from semi-anthracite coal is used in the general adsorbent section 136 instead of 40 mg of activated coconut charcoal.
  • cigarette delivers about 10.1 mg tar per cigarette.
  • Example 8 Cigarettes are prepared as in Example 2 except that about 69
  • cigarette delivers about 10.2 mg tar per cigarette.
  • Example 9 Representative cigarettes of Examples 1 - 6 are smoked to a
  • the vapor phase is collected in a bag and analyzed by GC/MS.
  • the data is
  • CA cellulose acetate filter plug
  • GA general adsorbent section
  • SA selective adsorbent section
  • Example 10 Representative cigarettes of Examples 7 and 8 are smoked to
  • the vapor phase is collected in a bag and analyzed by GC/MS.
  • the data is
  • the filter tow 142 when the adsorbents 144, 146 are dispersed within
  • the adsorbents are easier to handle than they are as loose particles.
  • the adsorbents 144, 146 may be packed within the filter plug material 142
  • plasticizer as the tow-dispersed adsorbents, the adsorbents would retain more
  • the filter plug, the general adsorbent section, and the selective adsorbent section may vary in length

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

La présente invention concerne un filtre de cigarette comportant une portion de filtre multiple qui réduit le niveau de constituants de fumée prédéterminés. Le filtre (130) est constitué d'un tampon de filtre fibreux (132) situé à l'extrémité bouche de la cigarette, une portion (136) renfermant un matériau d'absorption sélective, et une portion (134) renfermant un matériau d'absorption générale. Le matériau d'absorption sélective, tel qu'une matrice de résine phénolique formaldéhyde à surface fonctionnalisée avec essentiellement des groupes fonctionnels d'amines primaires et secondaires, élimine des constituants déterminés de fumée à partir de la fumée de tabac. Le matériau d'absorption générale, tel que du charbon actif, est, de préférence apte à absorber une gamme de composés chimique sans un degré élevé de spécificité. Du point de vue structurel, le tampon de filtre fibreux, la portion d'absorption sélective, et la portion d'absorption générale sont en alignement coaxial en tandem.
PCT/US2002/024240 2001-08-01 2002-07-30 Filtre de cigarette WO2003015544A1 (fr)

Priority Applications (20)

Application Number Priority Date Filing Date Title
EA200400191A EA005323B1 (ru) 2001-08-01 2002-07-30 Фильтр для сигарет
ES02756831T ES2375106T3 (es) 2001-08-01 2002-07-30 Filtro para cigarrillo.
IL16015002A IL160150A0 (en) 2001-08-01 2002-07-30 Cigarette filter
NZ531256A NZ531256A (en) 2001-08-01 2002-07-30 Cigarette filter with multiple filter sections
KR1020047001625A KR100838207B1 (ko) 2001-08-01 2002-07-30 담배 필터
AU2002322811A AU2002322811B2 (en) 2001-08-01 2002-07-30 Cigarette filter
AT02756831T ATE527901T1 (de) 2001-08-01 2002-07-30 Zigarettenfilter
CA002454820A CA2454820C (fr) 2001-08-01 2002-07-30 Filtre de cigarette
JP2003520314A JP4028483B2 (ja) 2001-08-01 2002-07-30 紙巻きタバコフィルタ
MXPA04001044A MXPA04001044A (es) 2001-08-01 2002-07-30 Filtro de cigarrillo.
US10/485,479 US20040237984A1 (en) 2001-08-01 2002-07-30 Cigarette filter
YUP-112/04A RS51032B (sr) 2001-08-01 2002-07-30 Filter za cigarete
BRPI0211853-0A BR0211853B1 (pt) 2001-08-01 2002-07-30 filtro de cigarro.
HU0401565A HUP0401565A3 (en) 2001-08-01 2002-07-30 Cigarette filter
APAP/P/2004/002985A AP2134A (en) 2001-08-01 2002-07-30 Cigarette filter
EP02756831A EP1411784B8 (fr) 2001-08-01 2002-07-30 Filtre de cigarette
IL160150A IL160150A (en) 2001-08-01 2004-02-01 Cigarette filter
NO20040452A NO20040452L (no) 2001-08-01 2004-02-02 Sigarettfilter
ZA2004/01077A ZA200401077B (en) 2001-08-01 2004-02-10 Cigarette filter
HRP20040166AA HRP20040166B1 (hr) 2001-08-01 2004-02-19 Filter za cigarete

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US30938801P 2001-08-01 2001-08-01
US30943501P 2001-08-01 2001-08-01
US60/309,388 2001-08-01
US60/309,435 2001-08-01
US10/011,841 2001-10-30
US10/011,841 US20030066539A1 (en) 2001-08-01 2001-10-30 Cigarette Filter

Publications (1)

Publication Number Publication Date
WO2003015544A1 true WO2003015544A1 (fr) 2003-02-27

Family

ID=27359516

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/024240 WO2003015544A1 (fr) 2001-08-01 2002-07-30 Filtre de cigarette

Country Status (27)

Country Link
US (2) US20030066539A1 (fr)
EP (1) EP1411784B8 (fr)
JP (1) JP4028483B2 (fr)
KR (1) KR100838207B1 (fr)
CN (1) CN100496312C (fr)
AP (1) AP2134A (fr)
AR (1) AR034967A1 (fr)
AT (1) ATE527901T1 (fr)
AU (1) AU2002322811B2 (fr)
BR (1) BR0211853B1 (fr)
CA (1) CA2454820C (fr)
EA (1) EA005323B1 (fr)
EG (1) EG23137A (fr)
ES (1) ES2375106T3 (fr)
HR (1) HRP20040166B1 (fr)
HU (1) HUP0401565A3 (fr)
IL (2) IL160150A0 (fr)
MX (1) MXPA04001044A (fr)
MY (1) MY128508A (fr)
NO (1) NO20040452L (fr)
NZ (1) NZ531256A (fr)
OA (1) OA12647A (fr)
PL (1) PL200589B1 (fr)
RS (1) RS51032B (fr)
TW (1) TWI239237B (fr)
WO (1) WO2003015544A1 (fr)
ZA (1) ZA200401077B (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1670327A2 (fr) † 2003-09-30 2006-06-21 R.J.Reynolds Tobacco Company Cigarette a filtre integrant un materiau adsorbant
WO2006081931A1 (fr) * 2005-02-01 2006-08-10 Reemtsma Cigarettenfabriken Gmbh Cigarette filtre
EP2211645A2 (fr) * 2007-09-28 2010-08-04 Vector Tobacco Inc. Produits associés au tabac présentant des risques réduits et leur utilisation
US7856990B2 (en) 2003-09-30 2010-12-28 R. J. Reynolds Tobacco Company Filtered cigarette incorporating an adsorbent material
US7972254B2 (en) 2007-06-11 2011-07-05 R.J. Reynolds Tobacco Company Apparatus for inserting objects into a filter component of a smoking article, and associated method
US8053483B2 (en) 2005-08-10 2011-11-08 Mitsubishi Chemical Corporation Gas adsorbent
US8739802B2 (en) 2006-10-02 2014-06-03 R.J. Reynolds Tobacco Company Filtered cigarette
US8882647B2 (en) 2005-09-23 2014-11-11 R.J. Reynolds Tobacco Company Equipment for insertion of objects into smoking articles
EP2844092A1 (fr) * 2012-05-03 2015-03-11 British American Tobacco (Investments) Limited Améliorations apportées à des filtres pour articles à fumer
EP2901871A1 (fr) * 2014-01-31 2015-08-05 Philip Morris Products S.A. Tube de filtre multisegments
US11291242B2 (en) 2019-08-28 2022-04-05 Aiger Group Ag Apparatus and method for forming a smoke filter

Families Citing this family (52)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2002228901A1 (en) * 2000-11-10 2002-05-21 Vector Tobacco (Bermuda) Ltd. Method and product for removing carcinogens from tobacco smoke
GB0209690D0 (en) * 2002-04-27 2002-06-05 British American Tobacco Co Improvements relating to smoking articles and smokable filler materials therefor
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
US20040231684A1 (en) * 2003-05-20 2004-11-25 Zawadzki Michael A. Smoking article and smoking article filter
US7669604B2 (en) * 2003-09-30 2010-03-02 R.J. Reynolds Tobacco Company Filtered cigarette incorporating an adsorbent material
US8066011B2 (en) 2003-09-30 2011-11-29 R. J. Reynolds Tobacco Company Filtered cigarette incorporating an adsorbent material
KR100617983B1 (ko) * 2005-01-07 2006-08-31 주식회사 케이티앤지 궐련용 필터
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
MY146137A (en) 2006-03-10 2012-06-29 British American Tobacco Co Smoking article filter
US9220301B2 (en) 2006-03-16 2015-12-29 R.J. Reynolds Tobacco Company Smoking article
PL1889550T3 (pl) * 2006-08-04 2010-01-29 Philip Morris Products Sa Wieloskładnikowy filtr dający wielosmakowe wzbogacenie
AR063873A1 (es) * 2006-12-07 2009-02-25 British American Tobacco Co Polimeros impresos molecularmente selectivos para nitrosaminas especificas del tabaco y metodos para usarlos
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
US20080173320A1 (en) * 2007-01-19 2008-07-24 R. J. Reynolds Tobacco Company Filtered Smoking Articles
US8186360B2 (en) * 2007-04-04 2012-05-29 R.J. Reynolds Tobacco Company Cigarette comprising dark air-cured tobacco
US20100206317A1 (en) * 2007-09-28 2010-08-19 Vector Tobacco, Inc. Reduced risk tobacco products and use thereof
UA95201C2 (ru) * 2007-12-14 2011-07-11 Джапан Тобакко Инк. Сигаретный фильтр (варианты) и сигарета с фильтром
CN101194755B (zh) * 2007-12-21 2010-09-29 湖南中烟工业有限责任公司 一种选择性降低卷烟烟气中醛类物质的添加剂、其制备方法及应用
EP2537427B1 (fr) 2008-05-21 2016-08-17 R.J. Reynolds Tobacco Company Filtre pour cigarette ayant des structures de fibres composées
US8613284B2 (en) 2008-05-21 2013-12-24 R.J. Reynolds Tobacco Company Cigarette filter comprising a degradable fiber
US8079369B2 (en) 2008-05-21 2011-12-20 R.J. Reynolds Tobacco Company Method of forming a cigarette filter rod member
US8375958B2 (en) * 2008-05-21 2013-02-19 R.J. Reynolds Tobacco Company Cigarette filter comprising a carbonaceous fiber
US8119555B2 (en) * 2008-11-20 2012-02-21 R. J. Reynolds Tobacco Company Carbonaceous material having modified pore structure
US8511319B2 (en) * 2008-11-20 2013-08-20 R. J. Reynolds Tobacco Company Adsorbent material impregnated with metal oxide component
US20100206319A1 (en) * 2009-02-16 2010-08-19 Gregg Gorski Personal smoke filter or smoke trap
WO2010101918A1 (fr) * 2009-03-02 2010-09-10 Tersus, Llc Agents de filtration et leurs procédés d'utilisation
US8434498B2 (en) 2009-08-11 2013-05-07 R. J. Reynolds Tobacco Company Degradable filter element
US20110271968A1 (en) 2010-05-07 2011-11-10 Carolyn Rierson Carpenter Filtered Cigarette With Modifiable Sensory Characteristics
US20120000481A1 (en) 2010-06-30 2012-01-05 Dennis Potter Degradable filter element for smoking article
US8720450B2 (en) 2010-07-30 2014-05-13 R.J. Reynolds Tobacco Company Filter element comprising multifunctional fibrous smoke-altering material
CN102008125B (zh) * 2010-11-14 2013-04-17 中国烟草总公司郑州烟草研究院 金属络合材料及其制备方法和在卷烟中的应用
US8973588B2 (en) 2011-07-29 2015-03-10 R.J. Reynolds Tobacco Company Plasticizer composition for degradable polyester filter tow
US20130167849A1 (en) 2011-12-28 2013-07-04 Balager Ademe Method of tipping for smoking article
US20130167851A1 (en) 2011-12-28 2013-07-04 Balager Ademe Method of filter assembly for smoking article
GB201207211D0 (en) * 2012-04-25 2012-06-06 British American Tobacco Co Smoking articles
CN103462222B (zh) * 2013-05-30 2015-08-19 贵州中烟工业有限责任公司 一种含超长TiO2水合物纳米管和TiO2纳米粉的卷烟过滤嘴
CN103462221B (zh) * 2013-05-30 2015-04-22 贵州中烟工业有限责任公司 一种含有吸附过滤层的卷烟过滤嘴及其用途
CN103462220B (zh) * 2013-05-30 2015-03-25 贵州中烟工业有限责任公司 一种含超长TiO2水合物纳米管、TiO2纳米粉和活性炭纤维的卷烟过滤嘴
GB201405657D0 (en) 2014-03-28 2014-05-14 British American Tobacco Co Additive carrying composition
GB201412752D0 (en) 2014-07-17 2014-09-03 Nicoventures Holdings Ltd Electronic vapour provision system
US20160073686A1 (en) 2014-09-12 2016-03-17 R.J. Reynolds Tobacco Company Tobacco-derived filter element
CN104558371B (zh) * 2015-01-28 2016-06-01 云南中烟工业有限责任公司 一种聚丙烯酸气凝胶的滤嘴高效吸附棒及其制备方法
US10028528B2 (en) 2015-06-01 2018-07-24 Antonino M. Pero Exhalation smoke filter mask
WO2017132709A1 (fr) * 2016-02-05 2017-08-10 "SPS CIGARONNE" Co. Ltd. Cigarette-filtre
US10226066B2 (en) 2016-03-07 2019-03-12 R.J. Reynolds Tobacco Company Rosemary in a tobacco blend
US10383369B2 (en) * 2017-06-07 2019-08-20 Rai Strategic Holdings, Inc. Fibrous filtration material for electronic smoking article
US10512286B2 (en) 2017-10-19 2019-12-24 Rai Strategic Holdings, Inc. Colorimetric aerosol and gas detection for aerosol delivery device
ES2717550B2 (es) * 2017-12-21 2020-02-28 Univ Alicante Filtro combinado para la eliminacion de alquitranes y compuestos toxicos del humo del tabaco
CN110250567A (zh) * 2019-05-08 2019-09-20 中山市博海精细化工有限公司 一种环保卷烟滤嘴填料及制备方法
KR102373179B1 (ko) * 2020-03-05 2022-03-11 조영상 독성 기체물질을 저감시키는 담배필터
CN113287784B (zh) * 2021-06-25 2022-09-30 云南中烟工业有限责任公司 可降低烟气中硫化氢释放量的卷烟滤嘴颗粒、制备及滤嘴

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2815760A (en) * 1951-12-24 1957-12-10 Schreus Hans Theo Tobacco smoke filter
GB878457A (en) * 1960-06-30 1961-09-27 Arend Jacob Van Buuren Tobacco smoke filter
BE647803A (fr) * 1964-05-12 1964-11-12
US3280823A (en) * 1963-10-01 1966-10-25 Philip Morris Inc Additive-releasing filter for releasing additives into tobacco smoke
US3716500A (en) * 1970-09-25 1973-02-13 Brown & Williamson Tobacco Tobacco smoke filter material
US4033361A (en) * 1974-06-17 1977-07-05 Brown & Williamson Tobacco Corporation Tobacco-smoke filters

Family Cites Families (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2185760A (en) * 1933-03-10 1940-01-02 Altenkirch Edmund Drying method and apparatus
US2915069A (en) * 1954-07-13 1959-12-01 Olin Mathieson Smoking device
US3266973A (en) * 1963-07-25 1966-08-16 Richard P Crowley Method of preparing adsorbent filter paper containing crystalline zeolite particles, and paper thereof
US3658069A (en) * 1970-02-17 1972-04-25 Stanford Research Inst Filter for reducing the level of carbon monoxide in tobacco smoke
US3841338A (en) * 1970-07-23 1974-10-15 British American Tobacco Co Tobacco-smoke filters
US3828800A (en) * 1970-09-25 1974-08-13 Brown & Williamson Tobacco Tobacco smoke filter material
CA957214A (en) * 1970-12-24 1974-11-05 Teijin Limited Conjugate fiber
US3960770A (en) * 1973-08-03 1976-06-01 The Dow Chemical Company Process for preparing macroporous open-cell carbon foam from normally crystalline vinylidene chloride polymer
US4003257A (en) * 1974-03-12 1977-01-18 Nasa Analysis of volatile organic compounds
US4063912A (en) * 1975-02-18 1977-12-20 Rohm And Haas Company Gaseous phase adsorption using partially pyrolyzed polymer particles
GB1584773A (en) * 1976-08-02 1981-02-18 Wiggins Teape Ltd Moulded fibrous materials
JPS5388400A (en) * 1977-01-13 1978-08-03 Toho Rayon Co Ltd Cigarette filter
US4246910A (en) * 1977-08-01 1981-01-27 Philip Morris Incorporated Cigarette filter material comprising compounds of iron in high oxidation states
US4266561A (en) * 1978-04-10 1981-05-12 Brown & Williamson Tobacco Corporation Tobacco smoke filtering compositions
ZA792187B (en) * 1978-05-16 1980-05-28 British American Tobacco Co Tobacco smoke filters
FR2524818A1 (fr) * 1982-04-09 1983-10-14 Raffinage Cie Francaise Nouveau catalyseur d'oxydation de mercaptans en disulfures, son procede de preparation et son application a l'adoucissement des distillats petroliers
US4438196A (en) * 1982-09-28 1984-03-20 Miles Laboratories, Inc. Immobilization of biocatalysts on granular carbon
JPS59166073A (ja) * 1983-03-10 1984-09-19 東レ株式会社 タバコフイルタ−
US4531953A (en) * 1983-06-21 1985-07-30 Calgon Corporation Sublimation of amine compounds on activated carbon pore surfaces
US5104530A (en) * 1988-01-29 1992-04-14 Maroldo Stephen G Chromatography column with carbonaceous adsorbents from pyrolyzed polysulfonated polymers
US5271419A (en) * 1989-09-29 1993-12-21 R. J. Reynolds Tobacco Company Cigarette
HU201865B (en) * 1989-04-28 1991-01-28 Pecsi Dohanygyar Tobacco-smoke filter of high efficiency
CA2078223A1 (fr) * 1991-02-01 1992-08-02 Krishnamurthy Nagasubramanian Mani Separation/recuperation des sels d'ammonium par separation electrodialytique de l'eau
US5271780A (en) * 1991-12-30 1993-12-21 Kem-Wove, Incorporated Adsorbent textile product and process
DE4205658A1 (de) * 1992-02-25 1993-08-26 Reemtsma H F & Ph Ventilierte filtercigarette
RU2010545C1 (ru) * 1992-04-22 1994-04-15 Товарищество с ограниченной ответственностью "Сфинкс" Фильтр для сигарет
US5281257A (en) * 1992-12-11 1994-01-25 Purus Inc. System for increasing efficiency of vapor phase pollutant removal with on-site regeneration and pollutant recovery
US5385876A (en) * 1993-01-27 1995-01-31 Syracuse University Activated carbons molecularly engineered
US5319114A (en) * 1993-09-23 1994-06-07 Arco Chemical Technology, L. P. Olefin epoxidation using a carbon molecular sieve impregnated with a transition metal
DE4343920A1 (de) * 1993-12-22 1995-06-29 Hoechst Ag Filter zur Entfernung von Stickoxiden aus Tabakrauch
AU6492696A (en) * 1995-07-14 1997-02-18 U.S. Environmental Protection Agency Absorbent filled membranes for removal of volatile compounds from wastewater
US5718943A (en) * 1995-07-20 1998-02-17 Rohm And Haas Company Method for producing efflorescence resistant coating on cementitious substrate
US6119699A (en) * 1997-12-19 2000-09-19 Sung; Michael T. Method and apparatus for the selective removal of specific components from smoke condensates
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
US6779529B2 (en) * 2001-08-01 2004-08-24 Brown & Williamson Tobacco Corporation Cigarette filter

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2815760A (en) * 1951-12-24 1957-12-10 Schreus Hans Theo Tobacco smoke filter
GB878457A (en) * 1960-06-30 1961-09-27 Arend Jacob Van Buuren Tobacco smoke filter
US3280823A (en) * 1963-10-01 1966-10-25 Philip Morris Inc Additive-releasing filter for releasing additives into tobacco smoke
BE647803A (fr) * 1964-05-12 1964-11-12
US3716500A (en) * 1970-09-25 1973-02-13 Brown & Williamson Tobacco Tobacco smoke filter material
US4033361A (en) * 1974-06-17 1977-07-05 Brown & Williamson Tobacco Corporation Tobacco-smoke filters

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4795959B2 (ja) * 2003-09-30 2011-10-19 アール・ジエイ・レイノルズ・タバコ・カンパニー 吸着性材料を組み込むフィルタ付き紙巻きタバコ
EP1670327A2 (fr) † 2003-09-30 2006-06-21 R.J.Reynolds Tobacco Company Cigarette a filtre integrant un materiau adsorbant
JP2007507230A (ja) * 2003-09-30 2007-03-29 アール・ジエイ・レイノルズ・タバコ・カンパニー 吸着性材料を組み込むフィルタ付き紙巻きタバコ
JP2008043347A (ja) * 2003-09-30 2008-02-28 R J Reynolds Tobacco Co 吸着性材料を組み込むフィルタ付き紙巻きタバコ
JP2008043346A (ja) * 2003-09-30 2008-02-28 R J Reynolds Tobacco Co 吸着性材料を組み込むフィルタ付き紙巻きタバコ
JP2008043345A (ja) * 2003-09-30 2008-02-28 R J Reynolds Tobacco Co 吸着性材料を組み込むフィルタ付き紙巻きタバコ
EP1670327B2 (fr) † 2003-09-30 2012-02-22 R.J.Reynolds Tobacco Company Cigarette a filtre integrant un materiau adsorbant
US7856990B2 (en) 2003-09-30 2010-12-28 R. J. Reynolds Tobacco Company Filtered cigarette incorporating an adsorbent material
US8439046B2 (en) 2005-02-01 2013-05-14 Reemtsma Cigarettenfabriken Gmbh Filter cigarette
WO2006081931A1 (fr) * 2005-02-01 2006-08-10 Reemtsma Cigarettenfabriken Gmbh Cigarette filtre
AU2006209977B2 (en) * 2005-02-01 2011-04-07 Reemtsma Cigarettenfabriken Gmbh Filter cigarette
US8053483B2 (en) 2005-08-10 2011-11-08 Mitsubishi Chemical Corporation Gas adsorbent
US9028385B2 (en) 2005-09-23 2015-05-12 R.J. Reynolds Tobacco Company Equipment for insertion of objects into smoking articles
US11383477B2 (en) 2005-09-23 2022-07-12 R.J. Reynolds Tobacco Company Equipment for insertion of objects into smoking articles
US8882647B2 (en) 2005-09-23 2014-11-11 R.J. Reynolds Tobacco Company Equipment for insertion of objects into smoking articles
US10123562B2 (en) 2005-09-23 2018-11-13 R.J. Reynolds Tobacco Company Equipment for insertion of objects into smoking articles
US9398777B2 (en) 2005-09-23 2016-07-26 R.J. Reynolds Tobacco Company Equipment for insertion of objects into smoking articles
US8739802B2 (en) 2006-10-02 2014-06-03 R.J. Reynolds Tobacco Company Filtered cigarette
US10383359B2 (en) 2007-06-11 2019-08-20 R.J. Reynolds Tobacco Company Apparatus for inserting objects into a filter component of a smoking article and associated method
US7972254B2 (en) 2007-06-11 2011-07-05 R.J. Reynolds Tobacco Company Apparatus for inserting objects into a filter component of a smoking article, and associated method
US11944119B2 (en) 2007-06-11 2024-04-02 R.J. Reynolds Tobacco Company Apparatus for inserting objects into a filter component of a smoking article and associated method
US9210952B2 (en) 2007-06-11 2015-12-15 R.J. Reynolds Tobacco Company Apparatus for inserting objects into a filter component of a smoking article, and associated method
EP2211645A4 (fr) * 2007-09-28 2013-01-16 Vector Tobacco Inc Produits associés au tabac présentant des risques réduits et leur utilisation
EP2211645A2 (fr) * 2007-09-28 2010-08-04 Vector Tobacco Inc. Produits associés au tabac présentant des risques réduits et leur utilisation
EP2844092A1 (fr) * 2012-05-03 2015-03-11 British American Tobacco (Investments) Limited Améliorations apportées à des filtres pour articles à fumer
EP2901871A1 (fr) * 2014-01-31 2015-08-05 Philip Morris Products S.A. Tube de filtre multisegments
EP3469924A1 (fr) * 2014-01-31 2019-04-17 Philip Morris Products S.a.s. Tube de filtre multisegments
RU2678677C2 (ru) * 2014-01-31 2019-01-30 Филип Моррис Продактс С.А. Многосегментная фильтрующая гильза
WO2015113697A1 (fr) * 2014-01-31 2015-08-06 Philip Morris Products S.A. Tube filtrant multi-segments
US11291242B2 (en) 2019-08-28 2022-04-05 Aiger Group Ag Apparatus and method for forming a smoke filter

Also Published As

Publication number Publication date
EA200400191A1 (ru) 2004-06-24
AU2002322811B2 (en) 2006-03-09
AP2004002985A0 (en) 2004-03-31
HUP0401565A3 (en) 2012-09-28
EP1411784A1 (fr) 2004-04-28
ZA200401077B (en) 2005-06-29
AR034967A1 (es) 2004-03-24
HUP0401565A2 (hu) 2004-11-29
OA12647A (en) 2006-06-16
MXPA04001044A (es) 2004-06-22
KR100838207B1 (ko) 2008-06-13
AP2134A (en) 2010-07-13
ATE527901T1 (de) 2011-10-15
TWI239237B (en) 2005-09-11
IL160150A0 (en) 2004-07-25
PL368136A1 (en) 2005-03-21
EP1411784B8 (fr) 2012-03-07
CN1553777A (zh) 2004-12-08
KR20040026699A (ko) 2004-03-31
US20030066539A1 (en) 2003-04-10
RS51032B (sr) 2010-10-31
EP1411784B1 (fr) 2011-10-12
BR0211853B1 (pt) 2011-11-29
CA2454820C (fr) 2007-06-05
IL160150A (en) 2008-03-20
JP2004538016A (ja) 2004-12-24
EG23137A (en) 2004-04-28
RS11204A (en) 2007-02-05
ES2375106T3 (es) 2012-02-24
PL200589B1 (pl) 2009-01-30
JP4028483B2 (ja) 2007-12-26
CN100496312C (zh) 2009-06-10
HRP20040166B1 (hr) 2013-11-22
US20040237984A1 (en) 2004-12-02
NZ531256A (en) 2005-07-29
HRP20040166A2 (en) 2004-08-31
EA005323B1 (ru) 2005-02-24
BR0211853A (pt) 2004-09-08
NO20040452L (no) 2004-03-29
MY128508A (en) 2007-02-28
CA2454820A1 (fr) 2003-02-27

Similar Documents

Publication Publication Date Title
EP1411784B8 (fr) Filtre de cigarette
US6779529B2 (en) Cigarette filter
AU2002322811A1 (en) Cigarette filter
EP2096945B1 (fr) Filtre pour article à fumer
US2754829A (en) Smoke filter
JP2011505851A (ja) 粒子突破の低減のためのランダム配向繊維を含むフィルタ
US20010045215A1 (en) Filter material for reducing harmful substances in tobacco smoke
EP2352399A1 (fr) Matériau adsorbant imprégné de composant d'oxyde métallique
US20080314400A1 (en) Filter including electrostatically charged fiber material
US20030098030A1 (en) Cigarette filter
JP4824568B2 (ja) タバコ煙フィルタ
JP3905883B2 (ja) シガレット用フィルター
JP3905884B2 (ja) シガレット用フィルター
JPH02308784A (ja) たばこ用フィルタ

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: P-112/04

Country of ref document: YU

AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE 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 NO NZ OM PH PL PT RO RU SD SE SG SI SK SL TJ TM TN TR TT TZ UA UG US UZ VN YU ZA ZM ZW

Kind code of ref document: A1

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

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): 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 IE IT LU MC NL PT SE SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

Kind code of ref document: A1

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

121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 2454820

Country of ref document: CA

Ref document number: 10485479

Country of ref document: US

WWE Wipo information: entry into national phase

Ref document number: 160150

Country of ref document: IL

WWE Wipo information: entry into national phase

Ref document number: 2003520314

Country of ref document: JP

Ref document number: PA/A/2004/001044

Country of ref document: MX

Ref document number: 1020047001625

Country of ref document: KR

WWE Wipo information: entry into national phase

Ref document number: 2002756831

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 2004/01077

Country of ref document: ZA

Ref document number: 200401077

Country of ref document: ZA

WWE Wipo information: entry into national phase

Ref document number: 200400191

Country of ref document: EA

WWE Wipo information: entry into national phase

Ref document number: AP/P/2004/002985

Country of ref document: AP

Ref document number: 2002322811

Country of ref document: AU

WWE Wipo information: entry into national phase

Ref document number: P20040166A

Country of ref document: HR

Ref document number: 531256

Country of ref document: NZ

WWE Wipo information: entry into national phase

Ref document number: 20028176693

Country of ref document: CN

WWP Wipo information: published in national office

Ref document number: 2002756831

Country of ref document: EP

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

WWP Wipo information: published in national office

Ref document number: 531256

Country of ref document: NZ

WWG Wipo information: grant in national office

Ref document number: 531256

Country of ref document: NZ