WO2005115182A3 - Tobacco smoke filter - Google Patents

Tobacco smoke filter Download PDF

Info

Publication number
WO2005115182A3
WO2005115182A3 PCT/GB2005/002045 GB2005002045W WO2005115182A3 WO 2005115182 A3 WO2005115182 A3 WO 2005115182A3 GB 2005002045 W GB2005002045 W GB 2005002045W WO 2005115182 A3 WO2005115182 A3 WO 2005115182A3
Authority
WO
WIPO (PCT)
Prior art keywords
tobacco smoke
smoke filter
volume
activated carbon
relative pressure
Prior art date
Application number
PCT/GB2005/002045
Other languages
French (fr)
Other versions
WO2005115182A2 (en
Inventor
Anthony Denis Mccormack
Francisco Rodriguez Reinoso
Original Assignee
Filtrona Int Ltd
Anthony Denis Mccormack
Francisco Rodriguez Reinoso
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 Filtrona Int Ltd, Anthony Denis Mccormack, Francisco Rodriguez Reinoso filed Critical Filtrona Int Ltd
Publication of WO2005115182A2 publication Critical patent/WO2005115182A2/en
Publication of WO2005115182A3 publication Critical patent/WO2005115182A3/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
    • A24D3/16—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
    • A24D3/14—Use of materials for tobacco smoke filters of organic materials as additive

Landscapes

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

Abstract

A tobacco smoke filter containing activated carbon and a volatile flavourant in an amount of between 5% and 35% (w/w) of the activated carbon, which activated carbon has a pore size distribution defined by a nitrogen adsorption isotherm which shows a volume adsorbed of less than 200 cm3/g at a relative pressure (P/Po) value of 0.1, and one or more of an increase in the volume of nitrogen adsorbed between relative pressure (P/Po) values of 0.75 and 0.95 of greater than 150 cm3/g; and an increase in the volume of nitrogen adsorbed. between relative pressure (P/Po) 10 values of 0.75 and 0.99 of greater than 200 cm3/g.
PCT/GB2005/002045 2004-05-25 2005-05-24 Tobacco smoke filter WO2005115182A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0411690.1 2004-05-25
GB0411690A GB0411690D0 (en) 2004-05-25 2004-05-25 Tobacco smoke filter

Publications (2)

Publication Number Publication Date
WO2005115182A2 WO2005115182A2 (en) 2005-12-08
WO2005115182A3 true WO2005115182A3 (en) 2006-01-26

Family

ID=32671051

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2005/002045 WO2005115182A2 (en) 2004-05-25 2005-05-24 Tobacco smoke filter

Country Status (2)

Country Link
GB (1) GB0411690D0 (en)
WO (1) WO2005115182A2 (en)

Families Citing this family (5)

* 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
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
CN102980843A (en) * 2012-12-24 2013-03-20 北京科技大学 Method for detecting coke air hole characteristics
GB201318055D0 (en) 2013-10-11 2013-11-27 British American Tobacco Co Additive Releasing Materials
GB201320674D0 (en) 2013-11-22 2014-01-08 British American Tobacco Co Adsorbent materials

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3972335A (en) * 1972-09-20 1976-08-03 Calgon Corporation Mentholated cigarette filter
WO2003059096A1 (en) * 2002-01-09 2003-07-24 Philip Morris Products, S.A. Cigarette filter with beaded carbon

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3972335A (en) * 1972-09-20 1976-08-03 Calgon Corporation Mentholated cigarette filter
WO2003059096A1 (en) * 2002-01-09 2003-07-24 Philip Morris Products, S.A. Cigarette filter with beaded carbon

Also Published As

Publication number Publication date
WO2005115182A2 (en) 2005-12-08
GB0411690D0 (en) 2004-06-30

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