WO2008150787A3 - Filtered smoking article - Google Patents

Filtered smoking article Download PDF

Info

Publication number
WO2008150787A3
WO2008150787A3 PCT/US2008/064954 US2008064954W WO2008150787A3 WO 2008150787 A3 WO2008150787 A3 WO 2008150787A3 US 2008064954 W US2008064954 W US 2008064954W WO 2008150787 A3 WO2008150787 A3 WO 2008150787A3
Authority
WO
WIPO (PCT)
Prior art keywords
filter
filter element
cellulose acetate
plasticizer
section
Prior art date
Application number
PCT/US2008/064954
Other languages
French (fr)
Other versions
WO2008150787A2 (en
Inventor
Elbert Curtis Jones
Original Assignee
Reynolds Tobacco Co R
Elbert Curtis Jones
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 Reynolds Tobacco Co R, Elbert Curtis Jones filed Critical Reynolds Tobacco Co R
Publication of WO2008150787A2 publication Critical patent/WO2008150787A2/en
Publication of WO2008150787A3 publication Critical patent/WO2008150787A3/en

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
    • A24D3/14—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 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)

Abstract

A filter element suitable for use as a cigarette filter includes at least one section of fibrous tow comprising at least one plasticizer, the plasticizer including a citric acid ester, such as triethyl citrate, present in an amount of no more than about 15 weight percent based on the total weight of the filter material, and an adsorbent material, such as a granular carbonaceous material. One exemplary filter element has two or more sections of cellulose acetate tow comprising triethyl citrate in an amount of no more than about 12 weight percent based on the total weight of the filter material, and a granular carbonaceous material dispersed within at least one section of cellulose acetate tow. Cigarettes incorporating the filter element and methods of extending shelf-life of cigarettes including an adsorbent material are also provided.
PCT/US2008/064954 2007-05-31 2008-05-28 Filtered smoking article WO2008150787A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/756,031 US20080295853A1 (en) 2007-05-31 2007-05-31 Filtered Smoking Article
US11/756,031 2007-05-31

Publications (2)

Publication Number Publication Date
WO2008150787A2 WO2008150787A2 (en) 2008-12-11
WO2008150787A3 true WO2008150787A3 (en) 2009-04-09

Family

ID=39967850

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2008/064954 WO2008150787A2 (en) 2007-05-31 2008-05-28 Filtered smoking article

Country Status (2)

Country Link
US (1) US20080295853A1 (en)
WO (1) WO2008150787A2 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110271968A1 (en) 2010-05-07 2011-11-10 Carolyn Rierson Carpenter Filtered Cigarette With Modifiable Sensory Characteristics
US8720450B2 (en) 2010-07-30 2014-05-13 R.J. Reynolds Tobacco Company Filter element comprising multifunctional fibrous smoke-altering material
EP2497382A1 (en) * 2011-03-07 2012-09-12 Philip Morris Products S.A. Smoking article including two or more filter segments
US11957163B2 (en) 2011-04-08 2024-04-16 R.J. Reynolds Tobacco Company Multi-segment filter element including smoke-altering flavorant
CN107307468A (en) 2011-05-31 2017-11-03 菲利普莫里斯生产公司 Plume for smoking product
US10064429B2 (en) 2011-09-23 2018-09-04 R.J. Reynolds Tobacco Company Mixed fiber product for use in the manufacture of cigarette filter elements and related methods, systems, and apparatuses
WO2014018446A1 (en) * 2012-07-25 2014-01-30 Celanese Acetate Llc Spinneret comprising tri-arc holes and tri-arc filaments produced therefrom
US8790556B2 (en) 2012-07-25 2014-07-29 Celanese Acetate Llc Process of making tri-arc filaments
CN103126075B (en) * 2013-03-05 2014-08-06 湖南中烟工业有限责任公司 Filter stick fiber base material additive capable of reducing phenolic compound in main cigarette stream smoke and application of filter stick fiber base material additive
CN103126074B (en) * 2013-03-05 2014-08-20 湖南中烟工业有限责任公司 Paper filter stick core base material additive capable of reducing phenolic compound in main cigarette stream smoke and application
CN105578906B (en) * 2013-10-14 2019-05-21 菲利普莫里斯生产公司 Heated type aerosol comprising improveing item generates product
US11219244B2 (en) 2014-12-22 2022-01-11 R.J. Reynolds Tobacco Company Tobacco-derived carbon material
LT3448181T (en) * 2016-04-25 2021-04-12 Optifilter Research Zrt. New cigarette filter containing alginite
KR101976325B1 (en) * 2018-07-06 2019-05-07 주식회사 케이티앤지 Cigarette filter reducing smoke constituent, cigarette, and manufacturing method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2940456A (en) * 1956-02-08 1960-06-14 Eastman Kodak Co Fibrous tobacco smoke filter containing finely divided solids
US3043736A (en) * 1959-03-02 1962-07-10 Eastman Kodak Co Method for making additive filters
US3370595A (en) * 1965-01-04 1968-02-27 Celanese Corp Smoke filters

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3126009A (en) * 1964-03-24 Filter-tips
US3095343A (en) * 1960-09-15 1963-06-25 United States Filter Corp Method for treating continuous filamentary tows
US3101723A (en) * 1960-11-15 1963-08-27 Philip Morris Inc Fibrous cigarette filter
DE3820089A1 (en) * 1988-06-13 1989-12-14 Bat Cigarettenfab Gmbh METHOD FOR IMPREGNATING FIBERS OF A TOBACCO FUEL FILTER WITH DI- OR POLYCARBONIC ACIDS OR. ANHYDRIDES THERE

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2940456A (en) * 1956-02-08 1960-06-14 Eastman Kodak Co Fibrous tobacco smoke filter containing finely divided solids
US3043736A (en) * 1959-03-02 1962-07-10 Eastman Kodak Co Method for making additive filters
US3370595A (en) * 1965-01-04 1968-02-27 Celanese Corp Smoke filters

Also Published As

Publication number Publication date
WO2008150787A2 (en) 2008-12-11
US20080295853A1 (en) 2008-12-04

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