GB1255657A - Improvements relating to tobacco-smoke filters - Google Patents

Improvements relating to tobacco-smoke filters

Info

Publication number
GB1255657A
GB1255657A GB2112868A GB2112868A GB1255657A GB 1255657 A GB1255657 A GB 1255657A GB 2112868 A GB2112868 A GB 2112868A GB 2112868 A GB2112868 A GB 2112868A GB 1255657 A GB1255657 A GB 1255657A
Authority
GB
United Kingdom
Prior art keywords
tobacco
absorbent
absorbent section
poorly
section
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
GB2112868A
Inventor
Henry George Horsewell
Thomas William Charles Tolman
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
Priority to GB2112868A priority Critical patent/GB1255657A/en
Priority to CH674569A priority patent/CH495712A/en
Priority to BR20851869A priority patent/BR6908518D0/en
Priority to DE19691922393 priority patent/DE1922393C3/en
Publication of GB1255657A publication Critical patent/GB1255657A/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
    • A24D3/16—Use of materials for tobacco smoke filters of inorganic materials

Abstract

1,255,657. Tobacco-smoke filters. BRITISHAMERICAN TOBACCO CO. Ltd. 16 April, 1969 [3 May, 1968], No. 21128/68. Heading A2C. A three-component tobacco-smoke filter with two or more filter sections, comprises an absorbent section, an aqueous humidifying means carried upon the material of the absorbent section and a poorly absorbent section, the humidifying means comprising a hygroscopic substance as well as water or other aqueous medium. The absorbent section may comprise absorbent paper or paper wadding. The poorly absorbent section may comprise a fibrous or filamentary material, such as cellulose acetate, or a foam material. Suitable hygroscopic substances are lithium chloride, magnesium chloride and glycerin. The absorbent material may be treated with a filtrationenhancing additive such as polyethylene imine, zinc acetate, sodium carbonate and/or trisodium orthophosphate. When attached to a cigarette, the poorly absorbent section of the filter forms the mouth end.
GB2112868A 1968-05-03 1968-05-03 Improvements relating to tobacco-smoke filters Expired GB1255657A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB2112868A GB1255657A (en) 1968-05-03 1968-05-03 Improvements relating to tobacco-smoke filters
CH674569A CH495712A (en) 1968-05-03 1969-05-02 Filter for tobacco smoke
BR20851869A BR6908518D0 (en) 1968-05-03 1969-05-02 SMOKE FILTERS
DE19691922393 DE1922393C3 (en) 1968-05-03 1969-05-02 Three component tobacco smoke filters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2112868A GB1255657A (en) 1968-05-03 1968-05-03 Improvements relating to tobacco-smoke filters

Publications (1)

Publication Number Publication Date
GB1255657A true GB1255657A (en) 1971-12-01

Family

ID=10157672

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2112868A Expired GB1255657A (en) 1968-05-03 1968-05-03 Improvements relating to tobacco-smoke filters

Country Status (4)

Country Link
BR (1) BR6908518D0 (en)
CH (1) CH495712A (en)
DE (1) DE1922393C3 (en)
GB (1) GB1255657A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0366982A2 (en) * 1988-10-17 1990-05-09 Hoechst Celanese Corporation Selective delivery and retention of nicotine by-product from cigarette smoke
EP1541044A1 (en) * 2002-09-19 2005-06-15 Japan Tobacco Inc. Filter for cigarette
US9107454B2 (en) 2009-12-21 2015-08-18 British American Tobacco (Investments) Limited Sheet filter materials with additives
US9894928B2 (en) 2004-10-25 2018-02-20 Philip Morris Usa Inc. Additives for tobacco cut filler

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0366982A2 (en) * 1988-10-17 1990-05-09 Hoechst Celanese Corporation Selective delivery and retention of nicotine by-product from cigarette smoke
EP0366982A3 (en) * 1988-10-17 1990-06-20 Hercules Incorporated Selective delivery and retention of nicotine by-product from cigarette smoke
EP1541044A1 (en) * 2002-09-19 2005-06-15 Japan Tobacco Inc. Filter for cigarette
EP1541044A4 (en) * 2002-09-19 2005-11-16 Japan Tobacco Inc Filter for cigarette
US7487782B2 (en) 2002-09-19 2009-02-10 Japan Tobacco Inc. Cigarette filter
US9894928B2 (en) 2004-10-25 2018-02-20 Philip Morris Usa Inc. Additives for tobacco cut filler
US10188139B2 (en) 2004-10-25 2019-01-29 Philip Morris Usa Inc. Additives for tobacco cut filler
US9107454B2 (en) 2009-12-21 2015-08-18 British American Tobacco (Investments) Limited Sheet filter materials with additives

Also Published As

Publication number Publication date
DE1922393B2 (en) 1979-10-11
DE1922393A1 (en) 1969-11-20
BR6908518D0 (en) 1973-01-30
DE1922393C3 (en) 1980-06-19
CH495712A (en) 1970-09-15

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