ZW6988A1 - Improvements relating to the manufacture of tobacco filters - Google Patents

Improvements relating to the manufacture of tobacco filters

Info

Publication number
ZW6988A1
ZW6988A1 ZW69/88A ZW6988A ZW6988A1 ZW 6988 A1 ZW6988 A1 ZW 6988A1 ZW 69/88 A ZW69/88 A ZW 69/88A ZW 6988 A ZW6988 A ZW 6988A ZW 6988 A1 ZW6988 A1 ZW 6988A1
Authority
ZW
Zimbabwe
Prior art keywords
manufacture
improvements relating
tobacco filters
tobacco
filters
Prior art date
Application number
ZW69/88A
Inventor
Anthony Luke John
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 ZW6988A1 publication Critical patent/ZW6988A1/en

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
ZW69/88A 1987-05-28 1988-05-30 Improvements relating to the manufacture of tobacco filters ZW6988A1 (en)

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
ZW6988A1 true ZW6988A1 (en) 1989-02-08

Family

ID=10618085

Family Applications (1)

Application Number Title Priority Date Filing Date
ZW69/88A ZW6988A1 (en) 1987-05-28 1988-05-30 Improvements relating to the manufacture of tobacco filters

Country Status (25)

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

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 (en) * 1991-10-22 1993-12-27 Austria Tabakwerke Ag METHOD FOR PRODUCING A CELLULOSE ACETATE CABLE AND CIGARETTE FILTER THEREOF
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 (en) * 1995-09-29 1997-04-10 Biotec Biolog Naturverpack Biodegradable filter material and process for its manufacture
DE10252823A1 (en) * 2002-11-13 2004-06-09 Biotec Biologische Naturverpackungen Gmbh & Co. Kg filter element
US9226524B2 (en) * 2010-03-26 2016-01-05 Philip Morris Usa Inc. Biopolymer foams as filters for smoking articles
CN110604961A (en) * 2019-09-16 2019-12-24 北京泽阳天成化工技术有限公司 Method and device for separating polymer in polypropylene production process

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 (en) * 1974-09-13 1976-03-16 Toyo Soda Manufacturing Co Ld PROCEDURE FOR MANUFACTURE OF A PERMEABEL PRODUCT AND PRODUCT SUCHAINED.
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
GB2205102A (en) 1988-11-30
MX168986B (en) 1993-06-16
DE3817889A1 (en) 1988-12-15
BE1002913A5 (en) 1991-08-06
FI882457A (en) 1988-11-29
AU1659688A (en) 1988-12-01
AR245876A1 (en) 1994-03-30
FR2615752B1 (en) 1992-06-19
MY102752A (en) 1992-09-30
AU611906B2 (en) 1991-06-27
ZA883697B (en) 1989-02-22
GB2205102B (en) 1991-09-18
ATA138888A (en) 1993-11-15
CA1293098C (en) 1991-12-17
FR2615752A1 (en) 1988-12-02
AT397757B (en) 1994-06-27
MW1488A1 (en) 1989-01-11
GB8812699D0 (en) 1988-06-29
DK287988D0 (en) 1988-05-26
ES2009926A6 (en) 1989-10-16
IT1219696B (en) 1990-05-24
DK171907B1 (en) 1997-08-11
FI882457A0 (en) 1988-05-25
GB8712617D0 (en) 1987-07-01
SG97291G (en) 1992-01-17
DK287988A (en) 1988-11-29
CY1624A (en) 1992-07-10
NZ224797A (en) 1990-04-26
CH677063A5 (en) 1991-04-15
NL8801356A (en) 1988-12-16
HK6192A (en) 1992-01-17
BR8802665A (en) 1988-12-27
IT8820750A0 (en) 1988-05-26
IN171503B (en) 1992-10-31

Similar Documents

Publication Publication Date Title
HK31088A (en) Improvements relating to cigarette filters
EP0419187A3 (en) Improvements relating to the processing of tobacco leaves
GB8721876D0 (en) Cigarette filter
GB2176584B (en) Improvements relating to the treatment of tobacco
GB2105173B (en) Improvements relating to the manufacture of cigarettes
GB2170694B (en) Improvements relating to cigarette filters
ZW6988A1 (en) Improvements relating to the manufacture of tobacco filters
GB2166641B (en) Improvements relating to tobacco smoke filters
GB2170695B (en) Improvements relating to cigarette filters
GB2199765B (en) Improvements relating to filters
GB2205026B (en) Improvements relating to the expansion of tobacco
GB2175188B (en) Filter cigarette manufacture
GB2159036B (en) Improvements relating to the manufacture of reconstituted tobacco
IL69668A0 (en) Improvements relating to smoking article filters
GB8715889D0 (en) Forming groups of filter cigarettes
GB8531454D0 (en) Manufacture of filter tip cigarettes
GB2142519B (en) Improvements relating to the reordering of tobacco
GB2127669B (en) Improvements relating to smoking article filters
GB2127670B (en) Improvements relating to smoking article filters
GB2108364B (en) Improvements relating to the making of smoking articles
GB8800818D0 (en) Cigarette filter
JPS55159788A (en) Production of tobacco filter
GB9212323D0 (en) Improvements relating to the manufacture of filter tipped cigarettes
EG19410A (en) Improvements relating to the processing of tobacco leaves
GB8715785D0 (en) Aid to give up smoking