GB8712617D0 - Tobacco smoke filters - Google Patents

Tobacco smoke filters

Info

Publication number
GB8712617D0
GB8712617D0 GB878712617A GB8712617A GB8712617D0 GB 8712617 D0 GB8712617 D0 GB 8712617D0 GB 878712617 A GB878712617 A GB 878712617A GB 8712617 A GB8712617 A GB 8712617A GB 8712617 D0 GB8712617 D0 GB 8712617D0
Authority
GB
United Kingdom
Prior art keywords
tobacco smoke
smoke filters
filters
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.)
Pending
Application number
GB878712617A
Other languages
English (en)
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 GB878712617A priority Critical patent/GB8712617D0/en
Publication of GB8712617D0 publication Critical patent/GB8712617D0/en
Priority to CH1968/88A priority patent/CH677063A5/fr
Priority to MW14/88A priority patent/MW1488A1/xx
Priority to ZA883697A priority patent/ZA883697B/xx
Priority to FI882457A priority patent/FI882457A/fi
Priority to AU16596/88A priority patent/AU611906B2/en
Priority to DE3817889A priority patent/DE3817889A1/de
Priority to IN363/MAS/88A priority patent/IN171503B/en
Priority to IT20750/88A priority patent/IT1219696B/it
Priority to NZ224797A priority patent/NZ224797A/en
Priority to DK287988A priority patent/DK171907B1/da
Priority to NL8801356A priority patent/NL8801356A/nl
Priority to BR8802665A priority patent/BR8802665A/pt
Priority to CA000567911A priority patent/CA1293098C/en
Priority to GB8812699A priority patent/GB2205102B/en
Priority to ES8801677A priority patent/ES2009926A6/es
Priority to MYPI88000566A priority patent/MY102752A/en
Priority to AR88310963A priority patent/AR245876A1/es
Priority to AT0138888A priority patent/AT397757B/de
Priority to MX011666A priority patent/MX168986B/es
Priority to FR888807107A priority patent/FR2615752B1/fr
Priority to BE8800594A priority patent/BE1002913A5/fr
Priority to ZW69/88A priority patent/ZW6988A1/xx
Priority to SG972/91A priority patent/SG97291G/en
Priority to HK61/92A priority patent/HK6192A/xx
Priority to US07/872,020 priority patent/US5523036A/en
Priority to CY1624A priority patent/CY1624A/xx
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/1669—Cellular material
    • B01D39/1676—Cellular material of synthetic origin
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
    • C08J9/125—Water, e.g. hydrated salts
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2401/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2403/00—Characterised by the use of starch, amylose or amylopectin or of their derivatives or degradation products

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Manufacture Of Tobacco Products (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
GB878712617A 1987-05-28 1987-05-28 Tobacco smoke filters Pending GB8712617D0 (en)

Priority Applications (27)

Application Number Priority Date Filing Date Title
GB878712617A GB8712617D0 (en) 1987-05-28 1987-05-28 Tobacco smoke filters
CH1968/88A CH677063A5 (de) 1987-05-28 1988-05-24
MW14/88A MW1488A1 (en) 1987-05-28 1988-05-24 Improvements relating to the manufacture of tobacco smoke filters
ZA883697A ZA883697B (en) 1987-05-28 1988-05-24 The manufacture of tobacco smoke filters
AU16596/88A AU611906B2 (en) 1987-05-28 1988-05-25 Improvements relating to the manufacture of tobacco smoke filters
FI882457A FI882457A (fi) 1987-05-28 1988-05-25 Foerfarande foer framstaellning av tobaksfilter.
DE3817889A DE3817889A1 (de) 1987-05-28 1988-05-26 Verfahren zum herstellen von tabakrauchfiltern
IN363/MAS/88A IN171503B (de) 1987-05-28 1988-05-26
IT20750/88A IT1219696B (it) 1987-05-28 1988-05-26 Miglioramenti relativi alla fabbricazione di filtri per fumo di tabacco
NZ224797A NZ224797A (en) 1987-05-28 1988-05-26 Method for making foamed filtration materials for use in tobacco smoke filters
DK287988A DK171907B1 (da) 1987-05-28 1988-05-26 Fremgangsmåde til fremstilling af et opskummet filtreringsmateriale
NL8801356A NL8801356A (nl) 1987-05-28 1988-05-26 Verbeteringen met betrekking tot de vervaardiging van filters voor tabaksrook.
BE8800594A BE1002913A5 (fr) 1987-05-28 1988-05-27 Perfectionnements a la fabrication de filtres pour la fumee de tabac.
BR8802665A BR8802665A (pt) 1987-05-28 1988-05-27 Metodo para fabricar material de filtracao em forma de espuma
MX011666A MX168986B (es) 1987-05-28 1988-05-27 Mejoras relacionadas con la manufactura de filtros para el humo del tabaco
GB8812699A GB2205102B (en) 1987-05-28 1988-05-27 Improvements relating to the manufacture of tobacco smoke filters
ES8801677A ES2009926A6 (es) 1987-05-28 1988-05-27 Un metodo para fabricar un material de filtracion espumado para elementos filtrantes de humo de tabaco.
MYPI88000566A MY102752A (en) 1987-05-28 1988-05-27 Improvedments relating to the manufacture of tobacco smoke filters
AR88310963A AR245876A1 (es) 1987-05-28 1988-05-27 Metodo para preparar un material de filtracion espumado.
AT0138888A AT397757B (de) 1987-05-28 1988-05-27 Verfahren zur herstellung von geschäumtem filtrationsmaterial
CA000567911A CA1293098C (en) 1987-05-28 1988-05-27 Manufacture of tobacco smoke filters
FR888807107A FR2615752B1 (fr) 1987-05-28 1988-05-27 Fabrication de filtres de fumee de tabac
ZW69/88A ZW6988A1 (en) 1987-05-28 1988-05-30 Improvements relating to the manufacture of tobacco filters
SG972/91A SG97291G (en) 1987-05-28 1991-11-20 Improvements relating to the manufacture of tobacco smoke filters
HK61/92A HK6192A (en) 1987-05-28 1992-01-16 Improvements relating to the manufacture of tobacco smoke filters
US07/872,020 US5523036A (en) 1987-05-28 1992-04-22 Methods of making tobacco smoke filter elements
CY1624A CY1624A (en) 1987-05-28 1992-07-10 Improvements relating to the manufacture of tobacco smoke filters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB878712617A GB8712617D0 (en) 1987-05-28 1987-05-28 Tobacco smoke filters

Publications (1)

Publication Number Publication Date
GB8712617D0 true GB8712617D0 (en) 1987-07-01

Family

ID=10618085

Family Applications (2)

Application Number Title Priority Date Filing Date
GB878712617A Pending GB8712617D0 (en) 1987-05-28 1987-05-28 Tobacco smoke filters
GB8812699A Expired - Lifetime GB2205102B (en) 1987-05-28 1988-05-27 Improvements relating to the manufacture of tobacco smoke filters

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB8812699A Expired - Lifetime GB2205102B (en) 1987-05-28 1988-05-27 Improvements relating to the manufacture of tobacco smoke filters

Country Status (25)

Country Link
AR (1) AR245876A1 (de)
AT (1) AT397757B (de)
AU (1) AU611906B2 (de)
BE (1) BE1002913A5 (de)
BR (1) BR8802665A (de)
CA (1) CA1293098C (de)
CH (1) CH677063A5 (de)
CY (1) CY1624A (de)
DE (1) DE3817889A1 (de)
DK (1) DK171907B1 (de)
ES (1) ES2009926A6 (de)
FI (1) FI882457A (de)
FR (1) FR2615752B1 (de)
GB (2) GB8712617D0 (de)
HK (1) HK6192A (de)
IN (1) IN171503B (de)
IT (1) IT1219696B (de)
MW (1) MW1488A1 (de)
MX (1) MX168986B (de)
MY (1) MY102752A (de)
NL (1) NL8801356A (de)
NZ (1) NZ224797A (de)
SG (1) SG97291G (de)
ZA (1) ZA883697B (de)
ZW (1) ZW6988A1 (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5523036A (en) * 1987-05-28 1996-06-04 British-American Tobacco Company Limited Methods of making tobacco smoke filter elements
US5095054A (en) * 1988-02-03 1992-03-10 Warner-Lambert Company Polymer compositions containing destructurized starch
US5022964A (en) * 1989-06-06 1991-06-11 The Dexter Corporation Nonwoven fibrous web for tobacco filter
AT396862B (de) * 1991-10-22 1993-12-27 Austria Tabakwerke Ag Verfahren zur herstellung eines zelluloseazetat-kabels und zigarettenfilter daraus
GB9305066D0 (en) * 1993-03-12 1993-04-28 British American Tobacco Co Improvements relating to filtration materials
GB9407715D0 (en) * 1994-04-19 1994-06-15 British American Tobacco Co Improvements relating to tobacco smoke filter elements
DE19536505A1 (de) * 1995-09-29 1997-04-10 Biotec Biolog Naturverpack Biologisch abbaubares Filtermaterial und Verfahren zu seiner Herstellung
DE10252823A1 (de) 2002-11-13 2004-06-09 Biotec Biologische Naturverpackungen Gmbh & Co. Kg Filterelement
US9226524B2 (en) 2010-03-26 2016-01-05 Philip Morris Usa Inc. Biopolymer foams as filters for smoking articles
CN110604961A (zh) * 2019-09-16 2019-12-24 北京泽阳天成化工技术有限公司 聚丙烯生产工艺中聚合物的分离方法及分离装置

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3836615A (en) * 1966-07-01 1974-09-17 Celanese Corp Method of forming cylindrical foamed cellulose rods enclosed in a rigid skin
GB1183498A (en) * 1967-10-24 1970-03-04 British American Tobacco Co Improvements relating to Tobacco-Smoke Filters
GB1279803A (en) * 1968-10-30 1972-06-28 Monsanto Chemicals Smoke-filtering elements
GB1319636A (en) * 1969-08-12 1973-06-06 British American Tobacco Co Tobacco smoke filters and filter production
US3800808A (en) * 1971-11-26 1974-04-02 Brown & Williamson Tobacco Tobacco smoke filter
US3976605A (en) * 1974-03-28 1976-08-24 Sumitomo Chemical Company, Limited Foamed plastics of resin compositions comprising pullulan type resins and thermoplastic resins and process for producing the same
GB1482216A (en) * 1974-04-11 1977-08-10 Monsanto Ltd Cigarette filters
NL7503298A (nl) * 1974-09-13 1976-03-16 Toyo Soda Manufacturing Co Ld Werkwijze voor het vervaardigen van een permea- bel produkt en zo verkregen produkt.
US4180536A (en) * 1978-03-13 1979-12-25 Celanese Corporation Process for extruding plasticized open cell foamed cellulose acetate filters
US4411280A (en) * 1981-09-11 1983-10-25 Celanese Corporation Ventilated thermoplastic polymer foam filter rods
DE3472565D1 (en) * 1983-03-23 1988-08-11 Chuo Kagaku Co Production of resin foam by aqueous medium

Also Published As

Publication number Publication date
AR245876A1 (es) 1994-03-30
BR8802665A (pt) 1988-12-27
BE1002913A5 (fr) 1991-08-06
DK171907B1 (da) 1997-08-11
HK6192A (en) 1992-01-17
ZA883697B (en) 1989-02-22
FR2615752B1 (fr) 1992-06-19
MW1488A1 (en) 1989-01-11
ZW6988A1 (en) 1989-02-08
ES2009926A6 (es) 1989-10-16
IT8820750A0 (it) 1988-05-26
CH677063A5 (de) 1991-04-15
DK287988A (da) 1988-11-29
SG97291G (en) 1992-01-17
DK287988D0 (da) 1988-05-26
FI882457A (fi) 1988-11-29
NL8801356A (nl) 1988-12-16
AU1659688A (en) 1988-12-01
FR2615752A1 (fr) 1988-12-02
GB8812699D0 (en) 1988-06-29
IT1219696B (it) 1990-05-24
GB2205102A (en) 1988-11-30
GB2205102B (en) 1991-09-18
MX168986B (es) 1993-06-16
AU611906B2 (en) 1991-06-27
CY1624A (en) 1992-07-10
CA1293098C (en) 1991-12-17
FI882457A0 (fi) 1988-05-25
DE3817889A1 (de) 1988-12-15
NZ224797A (en) 1990-04-26
MY102752A (en) 1992-09-30
IN171503B (de) 1992-10-31
AT397757B (de) 1994-06-27
ATA138888A (de) 1993-11-15

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