BR6897893D0 - Aperfeicoamento em filtro de cigarro e processo de preparacao - Google Patents

Aperfeicoamento em filtro de cigarro e processo de preparacao

Info

Publication number
BR6897893D0
BR6897893D0 BR197893/68A BR19789368A BR6897893D0 BR 6897893 D0 BR6897893 D0 BR 6897893D0 BR 197893/68 A BR197893/68 A BR 197893/68A BR 19789368 A BR19789368 A BR 19789368A BR 6897893 D0 BR6897893 D0 BR 6897893D0
Authority
BR
Brazil
Prior art keywords
perfecting
preparation process
cigarette filter
cigarette
filter
Prior art date
Application number
BR197893/68A
Other languages
English (en)
Portuguese (pt)
Inventor
H Horsewell
Tolman Twc
Original Assignee
British American Tobacco Co
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 filed Critical British American Tobacco Co
Publication of BR6897893D0 publication Critical patent/BR6897893D0/pt

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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Paper (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Filtering Materials (AREA)
BR197893/68A 1967-03-29 1968-03-25 Aperfeicoamento em filtro de cigarro e processo de preparacao BR6897893D0 (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB14247/67A GB1150192A (en) 1967-03-29 1967-03-29 Improvements relating to Cigarette Filters.

Publications (1)

Publication Number Publication Date
BR6897893D0 true BR6897893D0 (pt) 1973-05-31

Family

ID=10037703

Family Applications (1)

Application Number Title Priority Date Filing Date
BR197893/68A BR6897893D0 (pt) 1967-03-29 1968-03-25 Aperfeicoamento em filtro de cigarro e processo de preparacao

Country Status (11)

Country Link
US (1) US3550600A (instruction)
BE (1) BE712942A (instruction)
BR (1) BR6897893D0 (instruction)
CH (1) CH480030A (instruction)
DE (1) DE1767073C3 (instruction)
DK (1) DK122056B (instruction)
FI (1) FI46456C (instruction)
FR (1) FR1557464A (instruction)
GB (1) GB1150192A (instruction)
NL (1) NL134995C (instruction)
SE (1) SE340778B (instruction)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3658070A (en) * 1970-10-01 1972-04-25 Nicholas R Diluzio Tobacco smoke filters
US3802441A (en) * 1972-01-26 1974-04-09 Brown & Williamson Tobacco Corp Tobacco smoke filter additive
US4091822A (en) * 1975-04-25 1978-05-30 Loews Theatres, Inc. Article for the selective removal of hydrogen cyanide from tobacco smoke
US4266561A (en) * 1978-04-10 1981-05-12 Brown & Williamson Tobacco Corporation Tobacco smoke filtering compositions
ZA792187B (en) * 1978-05-16 1980-05-28 British American Tobacco Co Tobacco smoke filters
EP0532159A1 (en) * 1991-07-18 1993-03-17 Hoechst Celanese Corporation Removal of nicotine from tobacco smoke
CN100512689C (zh) * 2006-09-28 2009-07-15 江南大学 一种用于降低卷烟烟气中焦油及自由基的添加剂及其添加方法
US9226524B2 (en) 2010-03-26 2016-01-05 Philip Morris Usa Inc. Biopolymer foams as filters for smoking articles
US11178906B2 (en) 2016-08-17 2021-11-23 Philip Morris Products S.A. Aerosol-generating article having improved wrapper

Also Published As

Publication number Publication date
DE1767073C3 (de) 1973-09-27
FI46456C (fi) 1973-04-10
CH480030A (fr) 1969-12-15
DK122056B (da) 1972-01-17
NL6804308A (instruction) 1968-09-30
FI46456B (fi) 1973-01-02
BE712942A (instruction) 1968-07-31
DE1767073B2 (de) 1973-02-15
DE1767073A1 (de) 1972-03-09
US3550600A (en) 1970-12-29
GB1150192A (en) 1969-04-30
FR1557464A (instruction) 1969-02-14
SE340778B (instruction) 1971-11-29
NL134995C (instruction) 1972-07-17

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