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
Authority: EP; European Patent Office
Prior art keywords: filter; nitrogen oxides; tobacco smoke; eliminating nitrogen; eliminating
Prior art date: 1993-12-22
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 Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Withdrawn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.)

1993-12-22

Filing date

1994-12-16

Publication date

1997-04-16

1994-12-16 Application filed by Hoechst AG filed Critical Hoechst AG

1995-06-28 Publication of EP0659355A2 publication Critical patent/EP0659355A2/en

1997-04-16 Publication of EP0659355A3 publication Critical patent/EP0659355A3/en

Status Withdrawn legal-status Critical Current

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 Withdrawn EP0659355A3 (en)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
DE4343920A DE4343920A1 (en)	1993-12-22	1993-12-22	Filters to remove nitrogen oxides from tobacco smoke
DE4343920		1993-12-22

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
US5846297A (en) *	1994-10-25	1998-12-08	Ticona Gmbh	Filter material and process for producing No2 -free gases or liquids
AU2001296580A1 (en)	2000-10-05	2002-04-15	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
JPH02113878A (en) *	1988-07-15	1990-04-26	Moscow Tabacnaja Fab Yava	Composition for absorbing nitrogen oxide from tobacco smoke and filter for purifying tobacco smoke using said composition
DE4345218C2 (en) *	1993-08-24	1997-09-04	Hoechst Ag	Process for removing nitrogen oxides from gases and liquids

1993
- 1993-12-22 DE DE4343920A patent/DE4343920A1/en not_active Withdrawn
1994
- 1994-12-16 EP EP94119946A patent/EP0659355A3/en not_active Withdrawn
- 1994-12-20 US US08/359,556 patent/US5575302A/en not_active Expired - Fee Related
- 1994-12-21 JP JP6317844A patent/JPH07203936A/en active Pending

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

Publication	Publication Date	Title
EP0628260A3 (en)	1995-03-22	Cigarette filter.
ZA927719B (en)	1993-05-04	Tobacco smoke filter.
FI954872L (en)	1995-11-30	Cigarette smoke filter system
GB9008887D0 (en)	1990-06-20	Cigarette smoke filter
IL92739A0 (en)	1990-09-17	Highly efficient tobacco smoke filter
FI962234L (en)	1996-05-28	Cigarette filters
HUP9903488A2 (en)	2000-07-28	Filter cigarette
EP0632969A3 (en)	1995-03-29	Filtertow and process for its manufacture as well as tobacco smoke filter and process for its manufacture.
ZA927171B (en)	1993-03-24	Filter tip cigarettes.
GR3025071T3 (en)	1998-01-30	Tobacco pouch.
EP0632968A3 (en)	1995-03-29	Filtertow and process for its manufacture and tobacco smoke filter and process for its manufacture.
GB9310158D0 (en)	1993-06-30	Filter cigarette manufacture
EP0642220A3 (en)	1995-07-05	SAW filter.
EP0663849A4 (en)	1996-09-25	Gas filter.
EP0659355A3 (en)	1997-04-16	Filter for eliminating nitrogen oxides from tobacco smoke.
GB2263384B (en)	1996-03-06	Cigarette filter manufacture
GB9200904D0 (en)	1992-03-11	Cigarette filter manufacture
ZA939241B (en)	1994-08-05	Smoking room.
EP0493026A3 (en)	1992-12-16	Cigarette filter
GB9226775D0 (en)	1993-02-17	Cigarette filter
ZA939676B (en)	1994-08-26	Cigarette filter rod elements and cigarettes incorporating such filter rod elements.
GB2273435B (en)	1997-04-09	Smokers ashtray.
GB2289611B (en)	1998-03-04	Cigarette conveyor system.
GB9220678D0 (en)	1992-11-11	Tobacco smoke filter
GB9324464D0 (en)	1994-01-12	Cigarette filters

Legal Events

Date	Code	Title	Description
1995-05-12	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
1995-06-28	AK	Designated contracting states	Kind code of ref document: A2 Designated state(s): DE FR GB IT NL
1997-02-28	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
1997-04-16	AK	Designated contracting states	Kind code of ref document: A3 Designated state(s): DE FR GB IT NL
1997-08-29	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN
1997-10-15	18W	Application withdrawn	Withdrawal date: 19970814