GB793838A - Improvements in or relating to tobacco smoke filtering materials - Google Patents

Improvements in or relating to tobacco smoke filtering materials

Info

Publication number
GB793838A
GB793838A GB9153/56A GB915356A GB793838A GB 793838 A GB793838 A GB 793838A GB 9153/56 A GB9153/56 A GB 9153/56A GB 915356 A GB915356 A GB 915356A GB 793838 A GB793838 A GB 793838A
Authority
GB
United Kingdom
Prior art keywords
furfural
support
impregnated
relating
filtering material
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
GB9153/56A
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.)
CRAILCO SOC
Original Assignee
CRAILCO SOC
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 CRAILCO SOC filed Critical CRAILCO SOC
Publication of GB793838A publication Critical patent/GB793838A/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
    • A24D3/16—Use of materials for tobacco smoke filters of inorganic materials
    • A24D3/166—Silicic acid or silicates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)

Abstract

A filtering material for cigar or cigarette filter tips or holders, or tobacco pipes, comprises a support permeable to gases and impregnated with furfural slightly polymerized on the support. The support may be cotton or paper in thin layers or silica gel granules and is impregnated with furfural mixed with caustic potash or caustic soda and dried in a gentle air stream at 60 DEG C. to slightly polymerize it to form a furfural resin. After drying, the impregnated support is washed thrice in a solvent and once in water to eliminate the unpolymerized furfural, and again dried. The filtering material may be contained in a cartridge pierced at both ends to pass smoke.
GB9153/56A 1955-03-25 1956-03-23 Improvements in or relating to tobacco smoke filtering materials Expired GB793838A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR793838X 1955-03-25

Publications (1)

Publication Number Publication Date
GB793838A true GB793838A (en) 1958-04-23

Family

ID=9233755

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9153/56A Expired GB793838A (en) 1955-03-25 1956-03-23 Improvements in or relating to tobacco smoke filtering materials

Country Status (2)

Country Link
DE (1) DE1018770B (en)
GB (1) GB793838A (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE634657C (en) * 1936-09-01 Karl Guenther Smoke filter plug
BE501402A (en) * 1950-02-21
AT173262B (en) * 1951-02-26 1952-12-10 Samum Vereinigte Papier Ind K Filters to detoxify tobacco smoke
US2707959A (en) * 1952-06-20 1955-05-10 Gen Aniline & Film Corp Tobacco composition and method of minimizing the irritating properties of tobacco

Also Published As

Publication number Publication date
DE1018770B (en) 1957-10-31

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