EP0659355A3 - Filter for eliminating nitrogen oxides from tobacco smoke. - Google Patents

Filter for eliminating nitrogen oxides from tobacco smoke. Download PDF

Info

Publication number
EP0659355A3
EP0659355A3 EP94119946A EP94119946A EP0659355A3 EP 0659355 A3 EP0659355 A3 EP 0659355A3 EP 94119946 A EP94119946 A EP 94119946A EP 94119946 A EP94119946 A EP 94119946A EP 0659355 A3 EP0659355 A3 EP 0659355A3
Authority
EP
European Patent Office
Prior art keywords
filter
nitrogen oxides
tobacco smoke
eliminating nitrogen
eliminating
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP94119946A
Other languages
German (de)
French (fr)
Other versions
EP0659355A2 (en
Inventor
Erich Dr Bloecker
Andreas Dr Schleicher
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hoechst AG
Original Assignee
Hoechst AG
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 Hoechst AG filed Critical Hoechst AG
Publication of EP0659355A2 publication Critical patent/EP0659355A2/en
Publication of EP0659355A3 publication Critical patent/EP0659355A3/en
Withdrawn legal-status Critical Current

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
    • A24D3/08—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Manufacture Of Tobacco Products (AREA)
  • Treating Waste Gases (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
EP94119946A 1993-12-22 1994-12-16 Filter for eliminating nitrogen oxides from tobacco smoke. Withdrawn EP0659355A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4343920 1993-12-22
DE4343920A DE4343920A1 (en) 1993-12-22 1993-12-22 Filters to remove nitrogen oxides from tobacco smoke

Publications (2)

Publication Number Publication Date
EP0659355A2 EP0659355A2 (en) 1995-06-28
EP0659355A3 true EP0659355A3 (en) 1997-04-16

Family

ID=6505829

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94119946A Withdrawn EP0659355A3 (en) 1993-12-22 1994-12-16 Filter for eliminating nitrogen oxides from tobacco smoke.

Country Status (4)

Country Link
US (1) US5575302A (en)
EP (1) EP0659355A3 (en)
JP (1) JPH07203936A (en)
DE (1) DE4343920A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4428727A1 (en) * 1994-08-15 1996-02-29 Hoechst Ag Filter material and method for removing halogens and peroxide-containing compounds
EP0788398A1 (en) * 1994-10-25 1997-08-13 Hoechst Aktiengesellschaft Filter material and process for producing no 2-free gases
BR0114448A (en) 2000-10-05 2003-09-02 Nicolas Baskevitch Reduction of nitrosamines in tobacco and tobacco products
US6779529B2 (en) * 2001-08-01 2004-08-24 Brown & Williamson Tobacco Corporation Cigarette filter
US20030066539A1 (en) * 2001-08-01 2003-04-10 Figlar James N. Cigarette Filter
ES2206046B1 (en) * 2002-10-21 2005-08-01 Juan Guerrero Moles CATALYTIC FILTER FOR CIGARETTES.
US20050133053A1 (en) * 2003-12-22 2005-06-23 Philip Morris Usa Inc. Smoking articles comprising copper-exchanged molecular sieves
JP4820596B2 (en) * 2005-07-21 2011-11-24 住友精化株式会社 Nitric oxide purification method
US9220296B2 (en) 2013-03-15 2015-12-29 Safall Fall Method of reducing tobacco-specific nitrosamines

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2150806A (en) * 1983-11-25 1985-07-10 Filtrona Ltd Tobacco smoke filter
EP0250806A2 (en) * 1986-06-30 1988-01-07 Hercules Incorporated Method and device for removing nitric oxide from cigarette smoke
JPH01111095A (en) * 1987-10-22 1989-04-27 Toray Ind Inc Activated carbon fiber molded product
EP0351352A2 (en) * 1988-07-15 1990-01-17 Schering Aktiengesellschaft 2-Substituted ergolines, their preparation and use

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3434479A (en) * 1966-09-15 1969-03-25 Liggett & Myers Tobacco Co Permanganate tobacco smoke filter
US4661299A (en) * 1985-03-04 1987-04-28 Phillips Petroleum Company Radio frequency energy sensitized compositions and method for sensitizing compositions to radio frequency energy
US4968726A (en) * 1985-03-04 1990-11-06 Phillips Petroleum Company Radio frequency energy sensitized compositions and method for sensitizing compositions to ratio frequency energy
US4790965A (en) * 1985-03-04 1988-12-13 Phillips Petroleum Company Method for sensitizing compositions to radio frequency energy
US4767799A (en) * 1985-03-04 1988-08-30 Phillips Petroleum Company Radio frequency energy sensitized compositions and method for sensitizing compositions to radio frequency energy
US4763674A (en) * 1986-04-16 1988-08-16 Hercules Incorporated Method and device for controlling hydrogen cyanide and nitric oxide concentrations in cigarette smoke
US4749598A (en) * 1987-02-19 1988-06-07 Phillips Petroleum Company Poly(arylene sulfide) composition and process
US4810590A (en) * 1987-02-19 1989-03-07 Phillips Petroleum Company Poly(arylene sulfide) encapsulation process and article
BR8903470A (en) * 1988-07-15 1990-03-06 Mo Tabachnaya Fabrika Yava COMPOSITION AND PROCESS FOR ABSORPTION OF NITROGEN OXIDE FROM TOBACCO SMOKE, FILTER TO PURIFY TOBACCO SMOKE FROM NITROGEN OXIDE AND IMPREGNATION PROCESS FROM A BASE OF A FILTER
DE4345218C2 (en) * 1993-08-24 1997-09-04 Hoechst Ag Process for removing nitrogen oxides from gases and liquids

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2150806A (en) * 1983-11-25 1985-07-10 Filtrona Ltd Tobacco smoke filter
EP0250806A2 (en) * 1986-06-30 1988-01-07 Hercules Incorporated Method and device for removing nitric oxide from cigarette smoke
JPH01111095A (en) * 1987-10-22 1989-04-27 Toray Ind Inc Activated carbon fiber molded product
EP0351352A2 (en) * 1988-07-15 1990-01-17 Schering Aktiengesellschaft 2-Substituted ergolines, their preparation and use

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Week 8923, Derwent World Patents Index; AN 89-169638, XP002025144 *

Also Published As

Publication number Publication date
US5575302A (en) 1996-11-19
JPH07203936A (en) 1995-08-08
EP0659355A2 (en) 1995-06-28
DE4343920A1 (en) 1995-06-29

Similar Documents

Publication Publication Date Title
EP0628260A3 (en) Cigarette filter.
ZA927719B (en) Tobacco smoke filter.
GB9008887D0 (en) Cigarette smoke filter
IL92739A0 (en) Highly efficient tobacco smoke filter
HUP9903488A3 (en) Filter cigarette
EP0632969A3 (en) Filtertow and process for its manufacture as well as tobacco smoke filter and process for its manufacture.
ZA927171B (en) Filter tip cigarettes.
GR3025071T3 (en) Tobacco pouch.
EP0632968A3 (en) Filtertow and process for its manufacture and tobacco smoke filter and process for its manufacture.
EP0642220A3 (en) SAW filter.
GB9310158D0 (en) Filter cigarette manufacture
EP0663849A4 (en) Gas filter.
GB9220441D0 (en) Filter cigarette manufacture
EP0659355A3 (en) Filter for eliminating nitrogen oxides from tobacco smoke.
EP0637873A3 (en) SAW filter.
GB9300678D0 (en) Cigarette filter manufacture
GB9200904D0 (en) Cigarette filter manufacture
ZA939241B (en) Smoking room.
EP0493026A3 (en) Cigarette filter
GB9226775D0 (en) Cigarette filter
ZA939676B (en) Cigarette filter rod elements and cigarettes incorporating such filter rod elements.
GB2273435B (en) Smokers ashtray.
GB2289611B (en) Cigarette conveyor system.
GB9324464D0 (en) Cigarette filters
GB9316956D0 (en) Cigarette dilution filter set

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE FR GB IT NL

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE FR GB IT NL

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 19970814