GB1482216A - Cigarette filters - Google Patents

Cigarette filters

Info

Publication number
GB1482216A
GB1482216A GB16198/74A GB1619874A GB1482216A GB 1482216 A GB1482216 A GB 1482216A GB 16198/74 A GB16198/74 A GB 16198/74A GB 1619874 A GB1619874 A GB 1619874A GB 1482216 A GB1482216 A GB 1482216A
Authority
GB
United Kingdom
Prior art keywords
polypropylene
nucleating agent
foamed
extruded
filter
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.)
Expired
Application number
GB16198/74A
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.)
Monsanto Ltd
Original Assignee
Monsanto 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 Monsanto Ltd filed Critical Monsanto Ltd
Priority to GB16198/74A priority Critical patent/GB1482216A/en
Priority to AU79907/75A priority patent/AU498832B2/en
Priority to DE2515136A priority patent/DE2515136C3/de
Priority to IT49010/75A priority patent/IT1035240B/it
Priority to US05/566,508 priority patent/US4054550A/en
Priority to JP4386875A priority patent/JPS5318600B2/ja
Priority to CA224,371A priority patent/CA1022421A/en
Priority to FR7511181A priority patent/FR2267056B1/fr
Publication of GB1482216A publication Critical patent/GB1482216A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES OF CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter tips or filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces of cigars or cigarettes
    • A24D3/02—Manufacture of tobacco smoke filters
    • A24D3/0229—Filter rod forming processes
    • A24D3/0237—Filter rod forming processes by extrusion
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/05—Use of one or more blowing agents together
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/13—Cell size and distribution control while molding a foam
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/14—Plastic and nonmetallic article shaping or treating: processes forming integral skin on a foamed product
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/16—Molding foamed polypropylen articles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/17—Molding a foam containing a filler
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S521/00—Synthetic resins or natural rubbers -- part of the class 520 series
    • Y10S521/908—Nucleating agent for cellular product

Landscapes

  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
GB16198/74A 1974-04-11 1974-04-11 Cigarette filters Expired GB1482216A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
GB16198/74A GB1482216A (en) 1974-04-11 1974-04-11 Cigarette filters
AU79907/75A AU498832B2 (en) 1974-04-11 1975-04-07 Cigarette filters of foamed polypropylene
DE2515136A DE2515136C3 (de) 1974-04-11 1975-04-08 Zigarettenfilter und Verfahren zu seiner Herstellung
IT49010/75A IT1035240B (it) 1974-04-11 1975-04-09 Perfezionamento nei filtri per signarette o relativo ad essi
US05/566,508 US4054550A (en) 1974-04-11 1975-04-09 Process for producing cigarette filters
JP4386875A JPS5318600B2 (enExample) 1974-04-11 1975-04-10
CA224,371A CA1022421A (en) 1974-04-11 1975-04-10 Cigarette filters
FR7511181A FR2267056B1 (enExample) 1974-04-11 1975-04-10

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB16198/74A GB1482216A (en) 1974-04-11 1974-04-11 Cigarette filters

Publications (1)

Publication Number Publication Date
GB1482216A true GB1482216A (en) 1977-08-10

Family

ID=10072943

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16198/74A Expired GB1482216A (en) 1974-04-11 1974-04-11 Cigarette filters

Country Status (8)

Country Link
US (1) US4054550A (enExample)
JP (1) JPS5318600B2 (enExample)
AU (1) AU498832B2 (enExample)
CA (1) CA1022421A (enExample)
DE (1) DE2515136C3 (enExample)
FR (1) FR2267056B1 (enExample)
GB (1) GB1482216A (enExample)
IT (1) IT1035240B (enExample)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4282890A (en) * 1978-03-13 1981-08-11 Celanese Corporation Open cell structure foamed cellulose acetate filters
US4180536A (en) * 1978-03-13 1979-12-25 Celanese Corporation Process for extruding plasticized open cell foamed cellulose acetate filters
JPS57197132A (en) * 1981-05-29 1982-12-03 Sumitomo Chem Co Ltd Manufacture of polypropylene foam
US4507256A (en) * 1983-05-26 1985-03-26 Eastman Kodak Company Process for foaming cellulose acetate rod
US4576769A (en) * 1984-03-29 1986-03-18 Celanese Corporation Process for extruding and sizing foamed thermoplastic cigarette filter rods
IT1189495B (it) * 1986-05-09 1988-02-04 S P T Srl Fibre sintetice a voluminosita' aumentata,procedimento per produrle e loro uso in particolare per filtri
US4961415A (en) * 1987-01-16 1990-10-09 Kimberly-Clark Corporation Controlled draft and efficiency filter element for smoking articles
GB8712617D0 (en) * 1987-05-28 1987-07-01 British American Tobacco Co Tobacco smoke filters
US4903714A (en) * 1987-08-25 1990-02-27 R. J. Reynolds Tobacco Company Smoking article with improved mouthend piece
US5286428A (en) * 1987-10-16 1994-02-15 Sekisui Kaseihin Kogyo Kabushiki Kaisha Polypropylene resin foamed sheet for thermoforming and process for producing the same
US5348795A (en) * 1992-12-09 1994-09-20 The Dow Chemical Company Process for making a dimensionally-stable open-cell polypropylene foam with organic blowing agents
US5538019A (en) * 1993-11-03 1996-07-23 Schweitzer-Mauduit International, Inc. Spunbond cigarette filter
US6395795B1 (en) 2000-09-29 2002-05-28 Ausimont Usa, Inc. Titanium dioxide nucleating agent systems for foamable polymer compositions
DE10145968B4 (de) * 2001-09-18 2004-04-15 Sartorius Ag Filtrationsmembran
US6863074B2 (en) * 2002-08-30 2005-03-08 Philip Morris Usa Inc. Cigarette filters comprising unfunctionalized porous polyaromatic resins for removing gas phase constituents from mainstream tobacco smoke
RU2235488C1 (ru) * 2003-11-03 2004-09-10 Государственное Научное Учреждение "Институт Механики Металлополимерных Систем Им. В.А. Белого Нан Беларуси" Фильтр для сигарет
WO2015035220A1 (en) 2013-09-05 2015-03-12 Lorillard Tobacco Company Filter components, filters, smoking articles, and related methods, all for the controlled delivery of aerosols

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU38122A1 (enExample) * 1959-01-06
US3188295A (en) * 1962-06-27 1965-06-08 Dow Chemical Co Method of foaming a thermoplastic organic polymer containing a nucleating agent and an organic bromide
US3281513A (en) * 1962-12-07 1966-10-25 Tecalemit Engineering Method of manufacturing a fluid filter
US3358695A (en) * 1962-12-18 1967-12-19 Du Pont Foams
US3310617A (en) * 1963-06-19 1967-03-21 Shell Oil Co Process for preparing uniform melt dispersion of blowing agent and polymer and its use in making foamed products
GB1050711A (enExample) * 1963-10-04 1900-01-01
NL142442B (nl) * 1964-03-31 1974-06-17 Shell Int Research Werkwijze voor de vervaardiging van voorwerpen van polymeerschuim.
GB1182646A (en) * 1964-07-17 1970-02-25 Monsanto Chemicals Production of Foamed Products
DE1694899A1 (de) * 1965-12-09 1971-04-01 Salamander Chem Aktivatoren zur drucklosen Verschaeumung von Polyolefinen und der Mischpolymerisaten
DE1794360A1 (de) * 1966-09-30 1973-05-03 Hayer Dieter Dipl Chem Dr Aktivatoren zur drucklosen verschaeumung von polyolefinen und deren mischpolymerisaten
GB1148119A (en) * 1966-12-09 1969-04-10 Monsanto Chemicals Production of foamed resins
GB1218438A (en) * 1968-02-23 1971-01-06 Japan Styrene Paper Corp Improvements in or relating to the manufacture of foamed articles of thermoplastic materials
GB1221488A (en) * 1968-07-11 1971-02-03 Monsanto Chemicals Yarn production process
GB1271274A (en) * 1969-03-25 1972-04-19 Monsanto Chemicals Filtering element
US3610509A (en) * 1969-05-27 1971-10-05 Thomas W Winstead Skin-coated article formed of foamed thermoplastic material
US3861404A (en) * 1970-03-23 1975-01-21 Monsanto Chemicals Tobacco smoke filter
US3755208A (en) * 1970-10-23 1973-08-28 Haskon Inc Avoidance of cell collapse in an extrusion process for a copolymer based on a low molecular weight {60 -olefin and polar vinyl monomer
US3939849A (en) * 1970-11-18 1976-02-24 Monsanto Chemicals Limited Filter elements
AT315709B (de) * 1970-11-18 1974-06-10 Monsanto Chemicals Filterelemente
GB1341400A (en) * 1971-04-16 1973-12-19 Monsanto Chemicals Cigarette filters
JPS4848562A (enExample) * 1971-10-23 1973-07-10
US3785919A (en) * 1971-11-09 1974-01-15 Du Pont Composite filament with elastomeric core and microapertured polypropylene foam sheath and process therefor
US3939237A (en) * 1971-11-19 1976-02-17 Asahi Dow, Ltd. Method of making a fluid transmitting porous tube or sheet
BE789774A (fr) * 1972-02-18 1973-02-01 Sinclair Koppers Co Procede et appareil pour la fabrication de profiles en mousse
JPS4936770A (enExample) * 1972-08-11 1974-04-05

Also Published As

Publication number Publication date
IT1035240B (it) 1979-10-20
JPS50142800A (enExample) 1975-11-17
DE2515136C3 (de) 1981-09-10
DE2515136B2 (de) 1980-10-16
DE2515136A1 (de) 1975-12-18
AU498832B2 (en) 1979-03-29
CA1022421A (en) 1977-12-13
FR2267056A1 (enExample) 1975-11-07
FR2267056B1 (enExample) 1977-04-15
US4054550A (en) 1977-10-18
JPS5318600B2 (enExample) 1978-06-15
AU7990775A (en) 1976-10-14

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee