BE1002913A5 - IMPROVEMENTS IN THE MANUFACTURE OF FILTERS FOR TOBACCO SMOKE. - Google Patents

IMPROVEMENTS IN THE MANUFACTURE OF FILTERS FOR TOBACCO SMOKE. Download PDF

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Publication number
BE1002913A5
BE1002913A5 BE8800594A BE8800594A BE1002913A5 BE 1002913 A5 BE1002913 A5 BE 1002913A5 BE 8800594 A BE8800594 A BE 8800594A BE 8800594 A BE8800594 A BE 8800594A BE 1002913 A5 BE1002913 A5 BE 1002913A5
Authority
BE
Belgium
Prior art keywords
filters
manufacture
tobacco smoke
die
extruded product
Prior art date
Application number
BE8800594A
Other languages
French (fr)
Inventor
John Anthony Luke
William John Stone
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
Application granted granted Critical
Publication of BE1002913A5 publication Critical patent/BE1002913A5/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

Abstract

Une matière plastique particulaire, un polysaccharide et de l'eau sont introduits dans une extrudeuse qui est mise en oeuvre dans des conditions de chaleur et de pression telles, qu'à sa sortie de la filière, le produit extrudé prenne une section transversale supérieure à celle de l'orifice de la filière. Le produit extrudé est, en outre, soumis à une opération d'étirage destinée à l'allonger et à l'amincir et il est fourni de manière continue à l'unité de confection d'une machine à fabriquer des cigarettes.A particulate plastic, a polysaccharide and water are introduced into an extruder which is operated under conditions of heat and pressure such that, at its exit from the die, the extruded product takes a cross section greater than that of the orifice of the die. The extruded product is further subjected to a stretching operation intended to lengthen and thin it and it is supplied continuously to the preparation unit of a cigarette making machine.

BE8800594A 1987-05-28 1988-05-27 IMPROVEMENTS IN THE MANUFACTURE OF FILTERS FOR TOBACCO SMOKE. BE1002913A5 (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
BE1002913A5 true BE1002913A5 (en) 1991-08-06

Family

ID=10618085

Family Applications (1)

Application Number Title Priority Date Filing Date
BE8800594A BE1002913A5 (en) 1987-05-28 1988-05-27 IMPROVEMENTS IN THE MANUFACTURE OF FILTERS FOR TOBACCO SMOKE.

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

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1804769A1 (en) * 1967-10-24 1969-05-29 British American Tabacco Compa Filters for tobacco smoke
DE1953757A1 (en) * 1968-10-30 1970-09-17 Monsanto Chemicals Smoke filter
US3800808A (en) * 1971-11-26 1974-04-02 Brown & Williamson Tobacco Tobacco smoke filter
DE2513850A1 (en) * 1974-03-28 1976-02-19 Hayashibara Biochem Lab FOAM BASED ON PULLULAN AND A THERMOPLASTIC RESIN AND PROCESS FOR ITS MANUFACTURING
GB1466027A (en) * 1974-09-13 1977-03-02 Toyo Soda Mfg Co Ltd Water-and air-permeable material
DE2909096A1 (en) * 1978-03-13 1979-09-20 Celanese Corp CIGARETTE FILTER STRAND FROM AN ESSENTIALLY HOMOGENEOUS SOFTENED AND OPEN-CELLED CELLULOSE ACETATE FOAM AND METHOD FOR THE PRODUCTION THEREOF
US4411280A (en) * 1981-09-11 1983-10-25 Celanese Corporation Ventilated thermoplastic polymer foam filter rods
EP0122460A1 (en) * 1983-03-23 1984-10-24 Chuo Kagaku Co., Ltd. Production of resin foam by aqueous medium

Family Cites Families (3)

* 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
GB1319636A (en) * 1969-08-12 1973-06-06 British American Tobacco Co Tobacco smoke filters and filter production
GB1482216A (en) * 1974-04-11 1977-08-10 Monsanto Ltd Cigarette filters

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1804769A1 (en) * 1967-10-24 1969-05-29 British American Tabacco Compa Filters for tobacco smoke
DE1953757A1 (en) * 1968-10-30 1970-09-17 Monsanto Chemicals Smoke filter
US3800808A (en) * 1971-11-26 1974-04-02 Brown & Williamson Tobacco Tobacco smoke filter
DE2513850A1 (en) * 1974-03-28 1976-02-19 Hayashibara Biochem Lab FOAM BASED ON PULLULAN AND A THERMOPLASTIC RESIN AND PROCESS FOR ITS MANUFACTURING
GB1466027A (en) * 1974-09-13 1977-03-02 Toyo Soda Mfg Co Ltd Water-and air-permeable material
DE2909096A1 (en) * 1978-03-13 1979-09-20 Celanese Corp CIGARETTE FILTER STRAND FROM AN ESSENTIALLY HOMOGENEOUS SOFTENED AND OPEN-CELLED CELLULOSE ACETATE FOAM AND METHOD FOR THE PRODUCTION THEREOF
US4411280A (en) * 1981-09-11 1983-10-25 Celanese Corporation Ventilated thermoplastic polymer foam filter rods
EP0122460A1 (en) * 1983-03-23 1984-10-24 Chuo Kagaku Co., Ltd. Production of resin foam by aqueous medium

Also Published As

Publication number Publication date
HK6192A (en) 1992-01-17
MY102752A (en) 1992-09-30
ZA883697B (en) 1989-02-22
SG97291G (en) 1992-01-17
CA1293098C (en) 1991-12-17
DK171907B1 (en) 1997-08-11
DK287988A (en) 1988-11-29
DK287988D0 (en) 1988-05-26
MX168986B (en) 1993-06-16
CY1624A (en) 1992-07-10
GB2205102A (en) 1988-11-30
CH677063A5 (en) 1991-04-15
FR2615752B1 (en) 1992-06-19
BR8802665A (en) 1988-12-27
ES2009926A6 (en) 1989-10-16
IT1219696B (en) 1990-05-24
NZ224797A (en) 1990-04-26
ATA138888A (en) 1993-11-15
DE3817889A1 (en) 1988-12-15
GB8812699D0 (en) 1988-06-29
AU611906B2 (en) 1991-06-27
AR245876A1 (en) 1994-03-30
GB2205102B (en) 1991-09-18
AT397757B (en) 1994-06-27
IT8820750A0 (en) 1988-05-26
GB8712617D0 (en) 1987-07-01
FI882457A0 (en) 1988-05-25
FI882457A (en) 1988-11-29
NL8801356A (en) 1988-12-16
AU1659688A (en) 1988-12-01
IN171503B (en) 1992-10-31
MW1488A1 (en) 1989-01-11
ZW6988A1 (en) 1989-02-08
FR2615752A1 (en) 1988-12-02

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: BRITISH-AMERICAN TOBACCO CY LTD

Effective date: 20000531