CA944249A - Selective gas phase filter material - Google Patents

Selective gas phase filter material

Info

Publication number
CA944249A
CA944249A CA119,545A CA119545A CA944249A CA 944249 A CA944249 A CA 944249A CA 119545 A CA119545 A CA 119545A CA 944249 A CA944249 A CA 944249A
Authority
CA
Canada
Prior art keywords
gas phase
filter material
phase filter
selective gas
selective
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.)
Expired
Application number
CA119,545A
Other versions
CA119545S (en
Inventor
Elmer F. Litzinger
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.)
British American Tobacco Investments Ltd
Original Assignee
British American Tobacco Co Ltd
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 British American Tobacco Co Ltd filed Critical British American Tobacco Co Ltd
Application granted granted Critical
Publication of CA944249A publication Critical patent/CA944249A/en
Expired 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
    • A24D3/14—Use of materials for tobacco smoke filters of organic materials as additive
CA119,545A 1970-09-25 1971-07-30 Selective gas phase filter material Expired CA944249A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US7577370A 1970-09-25 1970-09-25

Publications (1)

Publication Number Publication Date
CA944249A true CA944249A (en) 1974-03-26

Family

ID=22127888

Family Applications (1)

Application Number Title Priority Date Filing Date
CA119,545A Expired CA944249A (en) 1970-09-25 1971-07-30 Selective gas phase filter material

Country Status (14)

Country Link
US (1) US3716063A (en)
AR (1) AR192895A1 (en)
AU (1) AU446175B2 (en)
BE (1) BE773077A (en)
BR (1) BR7106323D0 (en)
CA (1) CA944249A (en)
DE (1) DE2148035C3 (en)
DK (1) DK133456B (en)
FI (1) FI52166C (en)
GB (1) GB1313259A (en)
MY (1) MY7300479A (en)
NL (1) NL152443B (en)
SE (1) SE376541B (en)
ZA (1) ZA716419B (en)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4091822A (en) * 1975-04-25 1978-05-30 Loews Theatres, Inc. Article for the selective removal of hydrogen cyanide from tobacco smoke
ZA792187B (en) * 1978-05-16 1980-05-28 British American Tobacco Co Tobacco smoke filters
US5009239A (en) * 1988-12-20 1991-04-23 Hoechst Celanese Corporation Selective delivery and retention of aldehyde and nicotine by-product from cigarette smoke
DE4205658A1 (en) * 1992-02-25 1993-08-26 Reemtsma H F & Ph VENTILATED FILTER CIGARETTE
US6209547B1 (en) 1998-10-29 2001-04-03 Philip Morris Incorporated Cigarette filter
BR0013185B1 (en) 1999-07-28 2011-01-25 wrap for a smoking, cigarette and fabric article.
US6289898B1 (en) 1999-07-28 2001-09-18 Philip Morris Incorporated Smoking article wrapper with improved filler
US6911189B1 (en) 1999-10-29 2005-06-28 Philip Morris Usa Inc. Filter for selective removal of a gaseous component
US6848450B2 (en) * 2000-02-07 2005-02-01 Philip Morris Usa Inc. Cigarette filter using intermetallic compounds
US6481442B1 (en) * 2000-11-28 2002-11-19 Lorillard Licensing Company, Llc Smoking article including a filter for selectively removing carbonyls
US20040016436A1 (en) * 2002-07-26 2004-01-29 Charles Thomas Adsorbents for smoking articles comprising a non-volatile organic compound applied using a supercritical fluid
KR100695606B1 (en) * 2003-02-18 2007-03-14 필링젠트 리미티드 Filter containing a metal phthalocyanine and a polycationic polymer
US20050205102A1 (en) * 2004-01-30 2005-09-22 Philip Morris Usa Inc. Method of making surface modified silica gel
AR060470A1 (en) * 2006-04-17 2008-06-18 Filligent Ltd METHOD AND DEVICE FOR MANUFACTURING FILTERS FOR TOBACCO SMOKE
FR2905628B1 (en) * 2006-09-13 2011-01-21 Rhodia Recherches & Tech HIGH COHESION COMPOSITE MATERIAL, PROCESS FOR PREPARATION AND USES, IN PARTICULAR IN CIGARETTE FILTERS.
CN101433371B (en) * 2008-12-19 2011-10-12 湖南中烟工业有限责任公司 Papery filter tip for reducing aldehydes material in smoke of cigarette and preparation method thereof
CN102948925B (en) * 2012-11-27 2014-06-11 湖南中烟工业有限责任公司 Application method of cigarette smoke heavy metal adsorbent
CN102960860B (en) * 2012-11-27 2014-04-16 湖南中烟工业有限责任公司 Application method of cigarette smoke heavy metal ion adsorbent obtained through chemical cross-linking
CN104116133A (en) * 2014-07-31 2014-10-29 云南中烟工业有限责任公司 Application of polymers rich in amino groups in paper filter stick
EP3538250A4 (en) 2016-11-14 2020-06-24 Georgia Tech Research Corporation Pcstructures including supported polyamines and methods of making the supported polyamines
CN106954891A (en) * 2017-04-10 2017-07-18 滁州卷烟材料厂 A kind of filter tip for being used to adsorb heavy metal in cigarette smoke

Family Cites Families (3)

* 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
US3340879A (en) * 1967-01-16 1967-09-12 Brown & Williamson Tobacco Cigarette filters
US3410282A (en) * 1967-03-13 1968-11-12 Eastman Kodak Co Filter medium for removing hydrogen cyanide from tobacco smoke

Also Published As

Publication number Publication date
GB1313259A (en) 1973-04-11
ZA716419B (en) 1972-05-31
NL7113122A (en) 1972-03-28
DK133456B (en) 1976-05-24
SE376541B (en) 1975-06-02
BE773077A (en) 1972-03-24
DE2148035C3 (en) 1981-02-19
DK133456C (en) 1976-10-18
AU446175B2 (en) 1974-03-14
DE2148035B2 (en) 1980-06-12
FI52166C (en) 1977-07-11
BR7106323D0 (en) 1973-05-08
DE2148035A1 (en) 1972-03-30
AR192895A1 (en) 1973-03-21
US3716063A (en) 1973-02-13
AU3384071A (en) 1973-03-29
NL152443B (en) 1977-03-15
MY7300479A (en) 1973-12-31
FI52166B (en) 1977-03-31

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