CA941703A - Tobacco smoke filter - Google Patents

Tobacco smoke filter

Info

Publication number
CA941703A
CA941703A CA150,469A CA150469A CA941703A CA 941703 A CA941703 A CA 941703A CA 150469 A CA150469 A CA 150469A CA 941703 A CA941703 A CA 941703A
Authority
CA
Canada
Prior art keywords
tobacco smoke
smoke filter
filter
tobacco
smoke
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
CA150,469A
Other versions
CA150469S (en
Inventor
James R. Hammersmith
Martin L. Reynolds
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 CA941703A publication Critical patent/CA941703A/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
    • A24D3/08—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent
    • A24D3/10—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent of cellulose or cellulose derivatives

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
CA150,469A 1971-11-26 1972-08-29 Tobacco smoke filter Expired CA941703A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US20214871A 1971-11-26 1971-11-26

Publications (1)

Publication Number Publication Date
CA941703A true CA941703A (en) 1974-02-12

Family

ID=22748677

Family Applications (1)

Application Number Title Priority Date Filing Date
CA150,469A Expired CA941703A (en) 1971-11-26 1972-08-29 Tobacco smoke filter

Country Status (2)

Country Link
US (1) US3800808A (en)
CA (1) CA941703A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8712617D0 (en) * 1987-05-28 1987-07-01 British American Tobacco Co Tobacco smoke filters
DE4028704A1 (en) * 1990-09-10 1992-03-12 Bostik Gmbh 2-COMPONENT POLYURETHANE SEALANTS
EP0622407A1 (en) * 1993-04-28 1994-11-02 Hoechst Celanese Corporation Polymer blend composed of cellulose acetate and starch acetate used to form fibers, films and plastic materials and a process to prepare said blends
GB2283401A (en) * 1993-10-26 1995-05-10 Rothmans International Ltd Smoking articles and method of making them
CN103948169A (en) * 2014-05-08 2014-07-30 浙江中烟工业有限责任公司 Wet-combined filter stick for selectively reducing NNK in cigarette mainstream flue gas, as well as preparation method and application thereof
US10765143B2 (en) * 2017-09-14 2020-09-08 Altria Client Services Llc Smoking article with reduced tobacco
US10815427B2 (en) * 2017-11-17 2020-10-27 Branislav R. Simonovic Fire-retardant for an insulation product

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2542527A (en) * 1942-10-17 1951-02-20 Electric Storage Battery Co Process of producing microporous material
US3329544A (en) * 1961-05-11 1967-07-04 Cigarette Components Ltd Method of producing filter cores
US3358695A (en) * 1962-12-18 1967-12-19 Du Pont Foams
US3393120A (en) * 1965-09-22 1968-07-16 Eastman Kodak Co Polyolefin tow for cigarette filters
US3574803A (en) * 1966-11-15 1971-04-13 Celanese Corp Method of manufacturing a foamed cellulose ester filter
US3528433A (en) * 1968-03-21 1970-09-15 Philip Morris Inc Smoking product having microreticulated filter

Also Published As

Publication number Publication date
US3800808A (en) 1974-04-02

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