DK0474940T4 - Concentric smoke filter with discrete filament bundle and web filter materials - Google Patents

Concentric smoke filter with discrete filament bundle and web filter materials

Info

Publication number
DK0474940T4
DK0474940T4 DK90313555T DK90313555T DK0474940T4 DK 0474940 T4 DK0474940 T4 DK 0474940T4 DK 90313555 T DK90313555 T DK 90313555T DK 90313555 T DK90313555 T DK 90313555T DK 0474940 T4 DK0474940 T4 DK 0474940T4
Authority
DK
Denmark
Prior art keywords
filter
filament bundle
web
concentric
discrete filament
Prior art date
Application number
DK90313555T
Other languages
Danish (da)
Other versions
DK0474940T3 (en
Inventor
Cynthia W Arterbery
W Timothy Callaham
Gus D Keritsis
Morris F White Jr
Original Assignee
Philip Morris Prod
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=24285429&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DK0474940(T4) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Philip Morris Prod filed Critical Philip Morris Prod
Publication of DK0474940T3 publication Critical patent/DK0474940T3/en
Application granted granted Critical
Publication of DK0474940T4 publication Critical patent/DK0474940T4/en

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
    • 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
    • A24D3/04—Tobacco smoke filters characterised by their shape or structure
    • 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
    • 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
    • A24D3/163—Carbon

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Filtering Materials (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Undergarments, Swaddling Clothes, Handkerchiefs Or Underwear Materials (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

A concentric smoking filter (12) in which one of the filter media (20 or 21) is a fibrous tow, such as fibrous cellulose acetate tow, and one of the filter media (21 or 20) is a web material, such as paper, is provided. The filter improves the taste, particularly, of "ultra-light" cigarettes. <IMAGE>
DK90313555T 1990-08-24 1990-12-13 Concentric smoke filter with discrete filament bundle and web filter materials DK0474940T4 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US57187890A 1990-08-24 1990-08-24

Publications (2)

Publication Number Publication Date
DK0474940T3 DK0474940T3 (en) 1995-04-03
DK0474940T4 true DK0474940T4 (en) 2000-04-03

Family

ID=24285429

Family Applications (1)

Application Number Title Priority Date Filing Date
DK90313555T DK0474940T4 (en) 1990-08-24 1990-12-13 Concentric smoke filter with discrete filament bundle and web filter materials

Country Status (17)

Country Link
EP (1) EP0474940B2 (en)
JP (1) JP2767322B2 (en)
KR (1) KR0175139B1 (en)
AT (1) ATE115369T1 (en)
AU (1) AU635095B2 (en)
CA (1) CA2031727C (en)
DE (1) DE69015185T3 (en)
DK (1) DK0474940T4 (en)
ES (1) ES2066157T5 (en)
FI (1) FI94385C (en)
GR (2) GR3015326T3 (en)
HK (1) HK162995A (en)
HU (1) HU212772B (en)
NO (1) NO176464C (en)
PL (1) PL166314B1 (en)
RU (1) RU1836040C (en)
TR (1) TR25717A (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5622190A (en) * 1990-08-24 1997-04-22 Philip Morris Incorporated Concentric smoking filter having cellulose acetate tow periphery and carbon-particle-loaded web filter core
US5365951A (en) * 1990-08-24 1994-11-22 Philip Morris Incorporated Concentric smoking filter having cellulose acetate tow periphery and carbon-particle-loaded web filter core
US5746230A (en) * 1990-08-24 1998-05-05 Philip Morris Incorporated Concentric smoking filter having discrete tow and web filter media
EP0638248A1 (en) * 1993-08-12 1995-02-15 Philip Morris Products Inc. Methods and apparatus to make concentric filters composed of two or more materials
GB9321536D0 (en) * 1993-10-19 1993-12-08 British American Tobacco Co Smoking articles
DE19718296B4 (en) * 1997-04-30 2006-06-29 British American Tobacco (Germany) Gmbh Ventilated filter cigarette with a coaxial filter element
DE19722812C2 (en) * 1997-05-30 2003-02-13 Bat Cigarettenfab Gmbh Ultralight coaxial cigarette with multi-part filter
DE59707821D1 (en) * 1997-11-13 2002-08-29 Reemtsma H F & Ph GAS PHASE REDUCED CIGARETTE
DE10009829A1 (en) * 2000-03-01 2001-09-20 Reemtsma H F & Ph Filter cigarette has two part filter with ventilator, core, casing and length of tobacco.
GB0713905D0 (en) 2007-07-17 2007-08-29 British American Tobacco Co Cellulose acetate thread in filter
GB0811552D0 (en) * 2008-06-24 2008-07-30 British American Tobacco Co Filter for a smoking article
GB0816933D0 (en) * 2008-09-16 2008-10-22 British American Tobacco Co Filter for a smoking article
CN101999755A (en) * 2010-12-17 2011-04-06 南通烟滤嘴有限责任公司 Filter rod with coaxial paper cores
PT2978327T (en) 2013-03-28 2019-02-11 Philip Morris Products Sa Smoking article including a flavour delivery member
CN104188106A (en) * 2014-08-28 2014-12-10 云南中烟工业有限责任公司 Cigarette filter tip with high interception efficiency and application
EP3643185A4 (en) * 2017-06-19 2021-05-26 Japan Tobacco, Inc. Smoking article filter and production method therefor
KR102391290B1 (en) * 2020-04-22 2022-04-26 주식회사 케이티앤지 Mouthpiece for smoking aritcle, smoking article and smoking article assembly and smoking article package including the same

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3396061A (en) * 1964-06-01 1968-08-06 Celanese Corp Smoke filters
US4034765A (en) * 1975-10-30 1977-07-12 Liggett & Myers Incorporated Tobacco smoke filter
US4082098A (en) * 1976-10-28 1978-04-04 Olin Corporation Flavored cigarette
AU4119078A (en) 1977-11-18 1980-05-08 Philip Morris Inc Filter system
US4355995A (en) * 1979-03-27 1982-10-26 American Filtrona Corporation Tobacco smoke filter providing tobacco flavor enrichment, and method for producing same
US4291711A (en) * 1979-03-27 1981-09-29 American Filtrona Corporation Tobacco smoke filter providing tobacco flavor enrichment, and method for producing same
AU556902B2 (en) * 1981-12-18 1986-11-27 Cigarette Components Limited Tobacco smoke filter
DE3207683C2 (en) * 1982-03-03 1986-06-05 B.A.T. Cigaretten-Fabriken Gmbh, 2000 Hamburg Filter for a smokable article
GB2119221B (en) * 1982-04-05 1986-05-29 Filtrona Ltd Cigarette filter
DE3743597C1 (en) * 1987-12-22 1989-02-16 Bat Cigarettenfab Gmbh Coaxial cigarette
DE3901226C1 (en) * 1989-01-17 1990-07-26 B.A.T. Cigarettenfabriken Gmbh, 2000 Hamburg, De

Also Published As

Publication number Publication date
RU1836040C (en) 1993-08-23
PL288311A1 (en) 1992-02-24
EP0474940B2 (en) 1999-10-06
CA2031727A1 (en) 1992-02-25
DK0474940T3 (en) 1995-04-03
NO176464C (en) 1995-04-12
FI94385C (en) 1995-09-11
DE69015185D1 (en) 1995-01-26
ATE115369T1 (en) 1994-12-15
KR0175139B1 (en) 1999-02-18
AU635095B2 (en) 1993-03-11
ES2066157T3 (en) 1995-03-01
DE69015185T3 (en) 2000-03-09
FI94385B (en) 1995-05-31
HU908366D0 (en) 1991-07-29
ES2066157T5 (en) 1999-12-16
EP0474940A1 (en) 1992-03-18
HK162995A (en) 1995-10-27
FI906092A0 (en) 1990-12-11
EP0474940B1 (en) 1994-12-14
DE69015185T2 (en) 1995-05-24
KR920003914A (en) 1992-03-27
NO905639D0 (en) 1990-12-28
PL166314B1 (en) 1995-05-31
NO905639L (en) 1992-02-25
GR3032144T3 (en) 2000-04-27
JPH06269270A (en) 1994-09-27
HUT64455A (en) 1994-01-28
CA2031727C (en) 2001-04-10
AU6774890A (en) 1992-02-27
NO176464B (en) 1995-01-02
GR3015326T3 (en) 1995-06-30
FI906092A (en) 1992-02-25
JP2767322B2 (en) 1998-06-18
TR25717A (en) 1993-09-01
HU212772B (en) 1996-11-28

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