FR2034940A1 - Filters for tobacco smoke - Google Patents

Filters for tobacco smoke

Info

Publication number
FR2034940A1
FR2034940A1 FR7009007A FR7009007A FR2034940A1 FR 2034940 A1 FR2034940 A1 FR 2034940A1 FR 7009007 A FR7009007 A FR 7009007A FR 7009007 A FR7009007 A FR 7009007A FR 2034940 A1 FR2034940 A1 FR 2034940A1
Authority
FR
France
Prior art keywords
filters
tobacco smoke
alkali
water
metal
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.)
Withdrawn
Application number
FR7009007A
Other languages
French (fr)
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.)
Diamond Shamrock Corp
Original Assignee
Diamond Shamrock Corp
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 Diamond Shamrock Corp filed Critical Diamond Shamrock Corp
Publication of FR2034940A1 publication Critical patent/FR2034940A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24DCIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/06Use of materials for tobacco smoke filters
    • A24D3/16Use of materials for tobacco smoke filters of inorganic materials
    • A24D3/166Silicic acid or silicates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

These filters consists of one of the following substances, or a mixture of them:- (a) a hydrated alkali-metal silicate containing at least 10 wt. % of water and having a silica, alkali metal oxide wt. ratio of at least 4.0:1 or (b) an alkali-metal carbonate which is very soluble in water and has a bulk density of less than about 647.5 kg/m3.
FR7009007A 1969-03-14 1970-03-13 Filters for tobacco smoke Withdrawn FR2034940A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US80741669A 1969-03-14 1969-03-14

Publications (1)

Publication Number Publication Date
FR2034940A1 true FR2034940A1 (en) 1970-12-18

Family

ID=25196327

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7009007A Withdrawn FR2034940A1 (en) 1969-03-14 1970-03-13 Filters for tobacco smoke

Country Status (1)

Country Link
FR (1) FR2034940A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007069093A2 (en) * 2005-12-13 2007-06-21 Philip Morris Products S.A. Smoking articles with activated carbon and sodium bicarbonate-treated fibers and method of treating mainstream smoke

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007069093A2 (en) * 2005-12-13 2007-06-21 Philip Morris Products S.A. Smoking articles with activated carbon and sodium bicarbonate-treated fibers and method of treating mainstream smoke
WO2007069093A3 (en) * 2005-12-13 2007-10-25 Philip Morris Prod Smoking articles with activated carbon and sodium bicarbonate-treated fibers and method of treating mainstream smoke
EA013393B1 (en) * 2005-12-13 2010-04-30 Филип Моррис Продактс С.А. Smoking articles with activated carbon and sodium bicarbonate-treated fibers and method of treating mainstream smoke

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Legal Events

Date Code Title Description
ST Notification of lapse