FR2034940A1 - Filters for tobacco smoke - Google Patents
Filters for tobacco smokeInfo
- 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- Withdrawn
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)
- 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.
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FR7009007A Withdrawn FR2034940A1 (en) | 1969-03-14 | 1970-03-13 | Filters for tobacco smoke |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)
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 |
-
1970
- 1970-03-13 FR FR7009007A patent/FR2034940A1/en not_active Withdrawn
Cited By (3)
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 |