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 languages
English (en)
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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Filtering Materials (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
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 (xx)
AR (1) AR192895A1 (xx)
AU (1) AU446175B2 (xx)
BE (1) BE773077A (xx)
BR (1) BR7106323D0 (xx)
CA (1) CA944249A (xx)
DE (1) DE2148035C3 (xx)
DK (1) DK133456B (xx)
FI (1) FI52166C (xx)
GB (1) GB1313259A (xx)
MY (1) MY7300479A (xx)
NL (1) NL152443B (xx)
SE (1) SE376541B (xx)
ZA (1) ZA716419B (xx)

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 (de) * 1992-02-25 1993-08-26 Reemtsma H F & Ph Ventilierte filtercigarette
US6209547B1 (en) 1998-10-29 2001-04-03 Philip Morris Incorporated Cigarette filter
US6289898B1 (en) 1999-07-28 2001-09-18 Philip Morris Incorporated Smoking article wrapper with improved filler
US7216652B1 (en) 1999-07-28 2007-05-15 Philip Morris Usa Inc. 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
BRPI0407551B1 (pt) * 2003-02-18 2012-09-04 filtro de fumaça de tabaco, dispositivo fumável, método de filtração de fumaça de tabaco e método de fabricação do referido dispositivo
US20050205102A1 (en) * 2004-01-30 2005-09-22 Philip Morris Usa Inc. Method of making surface modified silica gel
MX2007004566A (es) * 2006-04-17 2009-02-16 Filligent Ltd Metodo y dispositivo para fabricar filtros para humo de tabaco.
FR2905628B1 (fr) 2006-09-13 2011-01-21 Rhodia Recherches & Tech Materiau composite de cohesion elevee, procede de preparation et utilisations, notamment dans les filtres a cigarettes.
CN101433371B (zh) * 2008-12-19 2011-10-12 湖南中烟工业有限责任公司 一种降低卷烟烟气中醛类物质的纸质过滤嘴及其制备方法
CN102960860B (zh) * 2012-11-27 2014-04-16 湖南中烟工业有限责任公司 一种通过化学交联得到的卷烟烟气重金属吸附剂的应用方法
CN102948925B (zh) * 2012-11-27 2014-06-11 湖南中烟工业有限责任公司 一种卷烟烟气重金属吸附剂的应用方法
CN104116133A (zh) * 2014-07-31 2014-10-29 云南中烟工业有限责任公司 一种富含氨基基团的聚合物在纸质滤棒中的应用
US11446634B2 (en) 2016-11-14 2022-09-20 Georgia Tech Research Corporation Pcstructures including supported polyamines and methods of making the supported polyamines
CN106954891A (zh) * 2017-04-10 2017-07-18 滁州卷烟材料厂 一种用于吸附卷烟烟气中重金属的滤嘴

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

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