Global Patent Index - EP 1845811 A1

EP 1845811 A1 2007-10-24 - CIGARETTE WITH CARBON ON TOW FILTER

Title (en)

CIGARETTE WITH CARBON ON TOW FILTER

Title (de)

ZIGARETTE MIT KOHLENSTOFF AUF FILTERTOW

Title (fr)

CIGARETTE MUNIE D'UN FILTRE CARBONE SUR ETOUPE

Publication

EP 1845811 A1 (EN)

Application

EP 05824620 A

Priority

  • IB 2005004001 W
  • US 63626204 P

Abstract (en)

[origin: WO2006064371A1] A cigarette (10) comprises a tobacco rod (12) and a carbon­on-tow filter (14) comprising a fiber tow (18) with flavored or unflavored carbon particles (20) distributed throughout the tow. The carbon particles have high activity in the range of 90 to 115%, preferably 95%. As mainstream smoke is drawn through the filter (14), gas phase smoke constituents are removed and flavor is released when the particles are flavored. Ventilation (24) is provided to limit the amount of tobacco being combusted during each puff and such ventilation is arranged at a location near the downstream end of the carbon-on-tow filter to lower mainstream smoke velocity through the filter. The filter achieves significant reductions in gas phase constituents of mainstream smoke, including 90% reductions or greater in at least one of 1, 3 butadiene, acrolein, isoprene, propionaldehyde, acrylonitrile, benzene, toluene, and 80% reductions or greater in acetaldehyde over extended shelf life of the cigarettes.

IPC 8 full level (invention and additional information)

A24D 3/16 (2006.01)

CPC (invention and additional information)

A24D 3/163 (2013.01)

Citation (third parties)

Third party :

  • WO 2005039333 A1 20050506 - FILTRONA INT LTD [GB], et al
  • US 5568819 A 19961029 - GENTRY JEFFERY S [US], et al
  • US 6761174 B2 20040713 - JUPE RICHARD [US], et al
  • WO 2004103099 A2 20041202 - LORILLARD LICENSING COMPANY LL [US], et al
  • US 5228464 A 19930720 - OWENS JR WILLIAM F [US]
  • WHITE P.R.: "SETTING UP AND RUNNING OF THE CARBON TETRACHLORIDE TEST", TECHNICAL MEMORANDUM NO. TM.88-08-004, 19 August 1988 (1988-08-19), pages 2PP, 1 - 10, XP055187915, Retrieved from the Internet <URL:HTTP://BETA.INDUSTRYDOCUMENTS.LIBRARY.UCSF.EDU/DOCUMENTSTORE/K/X/B/G//KXBG0194/KXBG0194.PDF> [retrieved on 20040305]
  • See also references of WO 2006064371A1

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

Designated extension state (EPC)

YU

EPO simple patent family

WO 2006064371 A1 20060622; WO 2006064371 A8 20070518; WO 2006064371 A8 20070802; AU 2005315243 A1 20060622; AU 2005315243 B2 20110908; BR PI0519090 A2 20081223; CN 101094597 A 20071226; CN 101094597 B 20111109; DK 1845811 T3 20150824; EA 009755 B1 20080428; EA 200701278 A1 20071026; EP 1845811 A1 20071024; EP 1845811 B1 20150520; ES 2545455 T3 20150911; HK 1109998 A1 20151023; HU E025226 T2 20160229; JP 2008523800 A 20080710; JP 5398143 B2 20140129; KR 20070089855 A 20070903; MX 2007007232 A 20070814; PT 1845811 E 20150915; RS 54104 B1 20151030; SI 1845811 T1 20151030; UA 87345 C2 20090710; US 2007261706 A1 20071115; ZA 200704410 B 20080925

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- Inventor name: JUPE, RICHARD

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