GB1220086A - Tobacco smoke filters - Google Patents

Tobacco smoke filters

Info

Publication number
GB1220086A
GB1220086A GB1453467A GB1453467A GB1220086A GB 1220086 A GB1220086 A GB 1220086A GB 1453467 A GB1453467 A GB 1453467A GB 1453467 A GB1453467 A GB 1453467A GB 1220086 A GB1220086 A GB 1220086A
Authority
GB
United Kingdom
Prior art keywords
cellulose acetate
filter
tobacco
foamed
smoke filters
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
GB1453467A
Inventor
Frank Reeder
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.)
Akzo Nobel UK PLC
Original Assignee
Courtaulds PLC
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 Courtaulds PLC filed Critical Courtaulds PLC
Priority to GB1453467A priority Critical patent/GB1220086A/en
Publication of GB1220086A publication Critical patent/GB1220086A/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 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Filtering Materials (AREA)

Abstract

1,220,086. Tobacco-smoke filters. COURTAULDS Ltd. 18 June, 1968 [30 March, 1967], No. 14534/67. Heading A2C. A tobacco-smoke filter comprises a section of foamed cellulose acetate material having interconnected pores. The foamed material is produced by slurrying finely divided or fibrous cellulose acetate with a solvent or softening agent, subjecting the slurry to heat and pressure sufficient to partially gel the cellulose acetate, and suddenly releasing the pressure to expand and foam the material. Fillers such as natural and synthetic fibres, wood pulp or kaolin, may be included in the slurry before foaming. The filter may form a component of a multiple filter that includes a crimped paper section with or without absorbent additive material such as active carbon, or includes a conventional fibre filter element.
GB1453467A 1967-03-30 1967-03-30 Tobacco smoke filters Expired GB1220086A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1453467A GB1220086A (en) 1967-03-30 1967-03-30 Tobacco smoke filters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1453467A GB1220086A (en) 1967-03-30 1967-03-30 Tobacco smoke filters

Publications (1)

Publication Number Publication Date
GB1220086A true GB1220086A (en) 1971-01-20

Family

ID=10042945

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1453467A Expired GB1220086A (en) 1967-03-30 1967-03-30 Tobacco smoke filters

Country Status (1)

Country Link
GB (1) GB1220086A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2419751A1 (en) * 1978-03-13 1979-10-12 Celanese Corp OPEN-CELLULAR-FOAMED CELLULOSE ACETATE FILTERS
US4282890A (en) * 1978-03-13 1981-08-11 Celanese Corporation Open cell structure foamed cellulose acetate filters
EP0614620A2 (en) * 1993-03-12 1994-09-14 British-American Tobacco Company Limited Extruded filtration materials

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2419751A1 (en) * 1978-03-13 1979-10-12 Celanese Corp OPEN-CELLULAR-FOAMED CELLULOSE ACETATE FILTERS
US4180536A (en) 1978-03-13 1979-12-25 Celanese Corporation Process for extruding plasticized open cell foamed cellulose acetate filters
US4282890A (en) * 1978-03-13 1981-08-11 Celanese Corporation Open cell structure foamed cellulose acetate filters
EP0614620A2 (en) * 1993-03-12 1994-09-14 British-American Tobacco Company Limited Extruded filtration materials
EP0614620A3 (en) * 1993-03-12 1995-03-01 British American Tobacco Co Extruded filtration materials.

Similar Documents

Publication Publication Date Title
ES467776A1 (en) Bonded fiber web, which is capable of absorbing water vapor comprising a swellable cellulose ether in fiber form
TW241198B (en) A tobacco filter material and a method of producing the same
GB1255564A (en) Tobacco smoke filters
ES376146A1 (en) Procedure for preparing paper and fibrous structures similar to paper. (Machine-translation by Google Translate, not legally binding)
GB695046A (en) Improvements in or relating to tobacco smoke filters
GB1009535A (en) Improvements in tobacco-smoke filters
GB1348580A (en) Reconstituted-tobacco smoking materials
GB1220086A (en) Tobacco smoke filters
GB793114A (en) Improvements in or relating to filter plugs or wads
GB1094642A (en) Improvements in or relating to filters for tobacco smoke
GB1252395A (en)
GB1422860A (en) Filter paper
GB1341525A (en)
GB1244609A (en) Tobacco smoke filters
GB1397308A (en) Non-woven fibrous material
GB1264895A (en)
GB1194572A (en) Improvements in Cigarettes
GB1171878A (en) Low Tar-Producing Tobacco Product and Method of Making it.
GB1126330A (en) Manufacture of tobacco smoke filters
GB1217679A (en) Tobacco smoke filters
SE7703457L (en) PROCEDURE FOR THE PREPARATION OF PAPER CONTAINING STARCH FIBERS AND PAPER THEREOF
GB820286A (en) Improvements in and relating to filtering media
GB820786A (en) Improvements in or relating to methods for making filter paper from fibrous materials
GB1081620A (en) Catamenial appliances
ES278553Y (en) A TOBACCO SMOKE FILTER