CN100367886C - Filter for cigarette - Google Patents
Filter for cigarette Download PDFInfo
- Publication number
- CN100367886C CN100367886C CNB02815231XA CN02815231A CN100367886C CN 100367886 C CN100367886 C CN 100367886C CN B02815231X A CNB02815231X A CN B02815231XA CN 02815231 A CN02815231 A CN 02815231A CN 100367886 C CN100367886 C CN 100367886C
- Authority
- CN
- China
- Prior art keywords
- cigarette
- filter
- adsorbent
- alumina
- silica
- 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 - Fee Related
Links
- 235000019504 cigarettes Nutrition 0.000 title claims abstract description 62
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 66
- 238000001914 filtration Methods 0.000 claims abstract description 46
- 239000000463 material Substances 0.000 claims abstract description 46
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 35
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 33
- 239000003610 charcoal Substances 0.000 claims description 3
- 235000012239 silicon dioxide Nutrition 0.000 claims 1
- 239000003463 adsorbent Substances 0.000 abstract description 41
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 34
- 229910052799 carbon Inorganic materials 0.000 abstract description 30
- 238000004804 winding Methods 0.000 abstract description 2
- 238000007493 shaping process Methods 0.000 abstract 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 8
- 238000002474 experimental method Methods 0.000 description 8
- 150000003216 pyrazines Chemical class 0.000 description 8
- 150000002168 ethanoic acid esters Chemical class 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 239000000779 smoke Substances 0.000 description 6
- 241000208125 Nicotiana Species 0.000 description 5
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 5
- 230000002079 cooperative effect Effects 0.000 description 5
- 239000003205 fragrance Substances 0.000 description 5
- 230000000391 smoking effect Effects 0.000 description 5
- 239000000835 fiber Substances 0.000 description 4
- 238000004088 simulation Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- 239000002781 deodorant agent Substances 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 150000002576 ketones Chemical class 0.000 description 2
- ZDGGJQMSELMHLK-UHFFFAOYSA-N m-Trifluoromethylhippuric acid Chemical class OC(=O)CNC(=O)C1=CC=CC(C(F)(F)F)=C1 ZDGGJQMSELMHLK-UHFFFAOYSA-N 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Natural products OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 1
- 235000013162 Cocos nucifera Nutrition 0.000 description 1
- 244000060011 Cocos nucifera Species 0.000 description 1
- 239000002211 L-ascorbic acid Substances 0.000 description 1
- 235000000069 L-ascorbic acid Nutrition 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 229960005070 ascorbic acid Drugs 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011790 ferrous sulphate Substances 0.000 description 1
- 235000003891 ferrous sulphate Nutrition 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 1
- TYQCGQRIZGCHNB-JLAZNSOCSA-N l-ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(O)=C(O)C1=O TYQCGQRIZGCHNB-JLAZNSOCSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
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
-
- 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
- A24D3/04—Tobacco smoke filters characterised by their shape or structure
- A24D3/048—Tobacco smoke filters characterised by their shape or structure containing additives
-
- 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
- A24D3/02—Manufacture of tobacco smoke filters
- A24D3/0275—Manufacture of tobacco smoke filters for filters with special features
- A24D3/0287—Manufacture of tobacco smoke filters for filters with special features for composite filters
-
- 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
- A24D3/163—Carbon
-
- 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)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
A filter for cigarette having a plurality of filter sections where a plurality of filtering materials (2) are wrapped individually with winding papers (3), a shaping paper (5) for wrapping the plurality of filter sections integrally, and a chip paper for covering the shaping paper in order to produce a cigarette through connection with the cigarette part, wherein active carbon (41) and silica/alumina (42)are contained as an adsorbent in at least one of the filtering material (2) and the air gap between the filtering materials (2).
Description
Technical field
The present invention relates to absorb especially the cigarette filter through improvement of special component in the main flow cigarette.
Background technology
For example, open the spy and to disclose the deodorant of forming by the inorganic mineral class porous body that is loaded with ferrous sulfate/L-ascorbic acid (adsorbent) in the clear 63-160659 communique, also put down in writing the example that in the filter tip of cigarette, adds this deodorant.
But above-mentioned communique mainly is the purpose that is adsorbed as with ammonia, all removes the composition of which kind of main flow cigarette under the situation of using above-mentioned adsorbent in cigarette filter less than record.In general, well-known, the filter-tip situation that contains the adsorbent of each composition in the non-selective absorption main flow cigarette when use can influence the fragrance of cigarette.
The object of the present invention is to provide the cigarette filter that can suppress also optionally to remove to Min. special component in the main flow cigarette for the influence of fragrance.
Detailed Description Of The Invention
Cigarette filter of the present invention, wherein have with coil paper and wrap up a plurality of filter tip parts of a plurality of filtering materials, the whole thin paper that wraps up the setting paper of a plurality of filter tips parts, coats setting paper in order to form the cigarette that partly is connected with cigarette respectively, it is characterized in that: active carbon and the silica/alumina as adsorbent contained at least one place in the space between above-mentioned filtering material or above-mentioned filtering material.
Cigarette filter of the present invention can also contain active carbon and the silica/alumina as adsorbent in above-mentioned coil paper or above-mentioned setting paper.
About the concrete structure of cigarette filter of the present invention, can enumerate structure (1) and have 2 filtering materials, fill the mixture of active carbon and silica/alumina in the space between 2 filtering materials; Structure (2) has 2 filtering materials, and the mixture of active carbon and silica/alumina is dispersed in the filtering material; Structure (3) has 3 filtering materials, fills activated carbon and silica/alumina in wherein 2 spaces between 3 filtering materials; Structure (4) has 3 filtering materials, and activated carbon is dispersed in the filtering material, and it is medium to make silica/alumina be dispersed in another filtering material.
In addition, about other cigarette filters of the present invention, wherein have a plurality of filtering materials in cigarette handle main body, it is characterized in that: active carbon and the silica/alumina as adsorbent contained at least one place in the space between above-mentioned filtering material or above-mentioned filtering material.
And, there is not above-mentioned restriction about the structure of cigarette filter of the present invention, can consider various distortion.
Brief description of drawings
Fig. 1 is the structure chart of simulation ground expression about an example of cigarette filter of the present invention.
Fig. 2 is the structure chart of simulation ground expression about another example of cigarette filter of the present invention.
Fig. 3 is the structure chart of simulation ground expression about another example of cigarette filter of the present invention.
Fig. 4 is the structure chart of simulation ground expression about another example of cigarette filter of the present invention.
Fig. 5 is the profile that is applied to the cigarette handle of cigarette filter of the present invention.
The best mode that carries out an invention
In the present invention, mainly be pyrazine class and phenol as the special component in the mainstream smoke of cigarette.
The inventor finds, under adsorbent and the situation with active carbon and silica/alumina as cigarette filter, can remove special component in the mainstream smoke especially by these cooperative effects, thereby finish the present invention.
In the present invention, as filtering material, can use acetic acid esters, paper, nonwoven etc.As the active carbon in the adsorbent, can use common coconut slag (ヤ シ ガ ラ) active carbon etc.As the silica/alumina in the adsorbent, for example, can use by consonance chemical industry production with the commercially available silica/alumina of キ ヨ-ヮ-De/700SN as trade name.This product, SiO
2Content is 63.0wt%, Al
2O
3Content is 10.3wt%, and dried reduction is 14.5wt%.
In the present invention, under the situation that contains adsorbent in the filtering material, active carbon and silica/alumina amount are drafted in the adsorbent total amount for every 10mm filtering material and are contained 1mg-150mg, be preferably 20mg-60mg, when containing in the space between the filtering material under the situation of adsorbent, draft in the adsorbent total amount for every 5mm space and contain 5mg-300mg, be preferably 30mg-120mg.
Below, embodiments of the invention are described.
Make the cigarette filter of benchmark (contrast) (no adsorbent) in contrast as follows.Prepare 2 acetic acid esters and be formed into the filtering material (common filter tip) of length 10mm, thereby coil paper forms 2 filter tip parts on rolling up around each filtering material silk size 2.2 Brittanies that, fibre bundle fiber number 40000 Brittanies that.The space of 5mm is set between 2 filtering materials, does not fill adsorbent in this space, paper formalizes on volume around 2 filter tip parts.This filter-tip aeration resistance is 80mmH
2O (1050mL/min).
In Fig. 1, represented a example according to the cigarette filter of the present invention's making.This cigarette filter is made according to following process.Prepare 2 acetic acid esters and be formed into the filtering material (common filter tip) 2 of length 10mm, thereby coil paper 3 forms 2 filter tip parts on volume around each filtering material 2 silk size 2.2 Brittanies that, fibre bundle fiber number 40000 Brittanies that.2 of 2 filtering materials the space is set, in this space, fill silica/alumina as the 30mg active carbon 41 and the 30mg of adsorbent 4 (42 the mixture of trade name キ ヨ-ヮ-De/700SN), under this state, setting paper 5 on volume around 2 filter tip parts.At this moment, regulate the space so that the appearance density of adsorbent is 100%.
In order to compare, make being filled with as the 30mg active carbon of adsorbent separately or being filled with the cigarette filter of 30mg silica/alumina separately.
In addition, double the adsorbent consumption, make the cigarette filter of filling the 60mg active carbon separately or filling the 60mg silica/alumina separately.
With paper tape above cigarette filter is connected to the cigarette position of going up tobacco leaf with the coil paper volume, as shown in table 1, make the various experiments of different adsorbents and use cigarette.At cigarette part commodity in use cigarette.About these cigarettes, carry out the absorption experiment of mainstream smoke according to following process.
Connect cigarette and automatic smoking apparatus by flexible pipe ( イ go Application system).Do not put into Cambridge (ケ Application Block リ Star ジ) filter tip.Burning length is set at 40mm, under standard smoking condition, cigarette is carried out smoking by automatic smoking apparatus.By the smoking exhaust outlet, in the air bag that adds He in advance (テ De ラ-system), absorb mainstream smoke, regulate so that cumulative volume is 8 liters with He.The 50mL gas that from this air bag, collects by gc analysis.
As the special component in the mainstream smoke, be mainly pyrazine class, phenol, hydrocarbon, ketone etc., carry out data analysis based on the peak area of the special component on the gas chromatogram.In table 1, represented the penetrance of pyrazine class and phenol.The peak area note of the special component on the gas chromatogram when will not have adsorbent (contrast) is made the peak area of the special component on A cnt, the gas chromatogram in the time of will using adsorbent a and is remembered that when making Aa, the penetrance Ta of these special components uses
Ta=Aa/A cnt represents.Measured value of experiment in the table 1 is based on that the peak area of the special component on the gas chromatogram tries to achieve.
In addition, using the predicted value of the filter-tip penetrance of 60mg active carbon is the value that will use measured value of experiment 2 powers of the filter-tip penetrance of 30mg active carbon to obtain.Equally, the value of using the predicted value of the filter-tip penetrance of 60mg silica/alumina to be to use measured value of experiment 2 powers of the filter-tip penetrance of 30mg silica/alumina to obtain.
On the other hand, be to predict the calculated value of the penetrance that obtains by the penetrance of independent separately adsorbent in table 1 and with the predicted value of the penetrance during adsorbent more than 2 kinds.That is, the penetrance of special component (measured value of experiment) note is made Ta in the time will using adsorbent a, the penetrance (measured value of experiment) of special component is remembered when making Tb in the time of will using adsorbent b, predicted value (Ta * Tb) expression.
Yet, and if the measured value of experiment of the penetrance during with 2 above adsorbents significantly littler than predicted value, can judge and adsorb those special components especially and shown cooperative effect by the adsorbent more than 2 kinds.In table 1, put down in writing above result jointly.
Table 1
| Adsorbent | Penetrance | |||
| The pyrazine class | Phenol | |||
| Measured value | Predicted value | Measured value | Predicted value | |
| Do not have | 1.00 | 1.00 | ||
| Active carbon (30mg) | 0.60 | 0.68 | ||
| Silica/alumina (30mg) | 0.73 | 0.61 | ||
| Active carbon (60mg) | 0.38 | 0.36 | 0.48 | 0.46 |
| Silica/alumina (60mg) | 0.54 | 0.53 | 0.38 | 0.37 |
| The mixture of active carbon (30mg)+silica/alumina (30mg) (amounting to 60mg) | 0.22 | 0.44 | 0.30 | 0.41 |
When the consumption that makes independent active carbon is that original 2 times situation or the consumption that makes independent silica/alumina are under the original 2 times situation, almost there is not difference between measured value and the predicted value.
In addition, though in table 1, do not demonstrate, thereby utilize the measured value of hydrocarbon and ketone and the difference between predicted value very little can not confirm by and with the cooperative effect of adsorbent more than 2 kinds.
Comparatively speaking, as shown in table 1, measured value for pyrazine class and phenol is littler than predicted value, shown by and be used as the active carbon of adsorbent and the cooperative effect of silica/alumina, known that this filter tip has adsorbed these special components especially.
Can know from above result, thereby if use separately active carbon or silica/alumina effectively absorption be called the special component of pyrazine class and phenol, then essentially further increase the adsorbent consumption, and then can have a significant impact fragrance.Comparatively speaking, when and be used as under the situation of the active carbon of adsorbent and silica/alumina, use a small amount of adsorbent also can effectively adsorb the special component that is called pyrazine class and phenol even can envision, also little for the influence of fragrance.
In Fig. 2, other examples have been represented about cigarette filter of the present invention.This cigarette filter 1 is to form by following process: prepare 3 filtering materials (common filter tip) that acetic acid esters are shaped obtain thus 2, form 3 filter tips parts at coil paper 3 on the volume around each filtering material 2, fill respectively in 2 spaces of tobacco leaf one side of 2 of 3 filtering materials and suction inlet one side that (trade name キ ヨ-ヮ-De/700SN) 42, setting paper 5 forms on volume around 3 filter tips parts as the active carbon 41 of adsorbent 4 and silica/alumina.In Fig. 2, represented on the contrary, also can fill silica/alumina, fill active carbon in suction inlet one side in tobacco leaf one side at suction inlet one side filling active carbon 41, at the example of tobacco leaf one side filling silica/alumina 42.
In Fig. 3, represented another example about cigarette filter of the present invention.This cigarette filter 1 is a following process and forming: the filtering material (common filter tip) 2 that preparation is shaped acetic acid esters to obtain and by disperse as the active carbon 41 of adsorbent and silica/alumina 42 and by acetic acid esters be shaped the filtering material (charcoal filtering mouth) formed thus 21, form 2 filter tips parts at winding coil paper 3 around each filter-tip material 2,21, paper 5 formalizes on volume around 2 filter tips parts.
In Fig. 4, represented another example about cigarette filter of the present invention.This cigarette filter 1 is a following process and forming: the filtering material (common filter tip) 2 that preparation is shaped acetic acid esters to obtain and form the filtering material of forming 22 as the silica/alumina 42 of adsorbent and by acetic acid esters by the filtering material (charcoal filtering mouth) 21 that disperses to form as the active carbon 41 of adsorbent and the acetic acid esters that is shaped with by dispersion, at each filter-tip material 2,21, thereby volume is gone up coil paper 3 and is formed 3 filter tip parts around 22, setting paper 5 on volume around 3 filter tip parts.Being provided with of filtering material 21 and filtering material 22 is unqualified, is arranged on tobacco leaf one side Anywhere.
In addition, in cigarette filter of the present invention, in setting paper, can also contain active carbon and silica/alumina as adsorbent.
Can be applied to the mode of cigarette handle as shown in Figure 5 about cigarette filter of the present invention.This cigarette filter is a following process and forming: at one end the inside of the main body 51 of the cylindric cigarette handle that forms of suction inlet portion 52 is provided with 2 filtering materials 2 and fills as the active carbon 41 of adsorbent 4 and the mixture of silica/alumina 42 in the space of 2 of 2 filtering materials.
The cigarette filter of Fig. 5 is that the structure of application drawing 1 on the cigarette handle forms, also can be on the cigarette handle structure of application drawing 2-Fig. 4.
The cigarette filter of above-mentioned any way can both absorb pyrazine class and phenol especially by the cooperative effect of active carbon and silica/alumina.
Industrial applicibility
By the present invention, can provide Min. suppress for fragrance impact, and can optionally remove the cigarette filter of special component in the mainstream smoke.
Claims (1)
1. cigarette filter, wherein have with coil paper and wrap up a plurality of filter tip parts of a plurality of filtering materials, the whole thin paper that wraps up the setting paper of a plurality of filter tips parts, coats setting paper in order to form the cigarette that partly is connected with cigarette respectively, it is characterized in that: have 3 filtering materials, and in a filtering material dispersed activity charcoal and in another filtering material dispersed silicon dioxide/aluminium oxide.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP235202/2001 | 2001-08-02 | ||
| JP2001235202 | 2001-08-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1538816A CN1538816A (en) | 2004-10-20 |
| CN100367886C true CN100367886C (en) | 2008-02-13 |
Family
ID=19066688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB02815231XA Expired - Fee Related CN100367886C (en) | 2001-08-02 | 2002-07-31 | Filter for cigarette |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US20040182401A1 (en) |
| EP (1) | EP1413212A1 (en) |
| JP (1) | JP3905884B2 (en) |
| KR (1) | KR20040017356A (en) |
| CN (1) | CN100367886C (en) |
| CA (1) | CA2455412C (en) |
| RU (1) | RU2260359C2 (en) |
| WO (1) | WO2003013287A1 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6814786B1 (en) * | 2003-04-02 | 2004-11-09 | Philip Morris Usa Inc. | Filters including segmented monolithic sorbent for gas-phase filtration |
| GB0426615D0 (en) * | 2004-12-03 | 2005-01-05 | Filtrona Suisse Sa | Tobacco smoke filter |
| US20080264433A1 (en) * | 2006-03-09 | 2008-10-30 | Postech Academy-Industry Foundation | Cucurbituril Added Cigarettes and Manufacturing Method Thereof |
| WO2008018617A1 (en) * | 2006-08-10 | 2008-02-14 | Daicel Chemical Industries, Ltd. | Cigarette filter |
| FR2915062B1 (en) * | 2007-04-17 | 2011-04-08 | Laurent Schwartz | USE OF CO2 ABSORPTION MEANS IN A CIGARETTE FILTER TO REDUCE THE INHALE CO2 RATE BY A SMOKER. |
| WO2010001493A1 (en) * | 2008-07-02 | 2010-01-07 | ダイセル化学工業株式会社 | Filter material comprising silica gel and cigarette filter using the same |
| PL215954B1 (en) * | 2010-08-13 | 2014-02-28 | Int Tobacco Machinery Poland | Method of manufacturing the multi-segment filter rods |
| US9655382B2 (en) * | 2014-09-16 | 2017-05-23 | John R. Zade | Responsible cigarette holder |
| EP3967159A1 (en) * | 2020-09-10 | 2022-03-16 | Andreas Setzer | Device for filtering smoke |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6168135A (en) * | 1984-09-11 | 1986-04-08 | Topy Ind Ltd | Agent for removing carbon monoxide in tobacco smoke |
| CN2031615U (en) * | 1988-06-18 | 1989-02-01 | 仇叔椗 | Micro filtering adsorption cigarette holder |
| CN1145756A (en) * | 1995-09-20 | 1997-03-26 | 李魏贵 | Non-toxic cigarette and cigar |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1009535A (en) * | 1963-10-15 | 1965-11-10 | British American Tobacco Co | Improvements in tobacco-smoke filters |
| GB1103823A (en) * | 1964-06-10 | 1968-02-21 | British American Tobacco Co | Improvements relating to tobacco-smoke filters |
| US3658069A (en) * | 1970-02-17 | 1972-04-25 | Stanford Research Inst | Filter for reducing the level of carbon monoxide in tobacco smoke |
| US4038992A (en) * | 1975-09-29 | 1977-08-02 | The Japan Tobacco & Salt Public Corporation | Granular composition for tobacco filter |
| JPS63160659A (en) * | 1986-12-25 | 1988-07-04 | 日本たばこ産業株式会社 | Deodorant |
| AU658372B2 (en) * | 1990-11-19 | 1995-04-13 | Cigarette Components Limited | Smoke filter containing particulate smoke modifying additive |
| JPH09299073A (en) * | 1996-05-11 | 1997-11-25 | Takashi Sato | Healthy cigarette |
| JPH11235169A (en) * | 1998-02-23 | 1999-08-31 | Daicel Chem Ind Ltd | Tobacco element and its production |
| KR100396911B1 (en) * | 1998-11-09 | 2003-09-02 | 니뽄 다바코 산교 가부시키가이샤 | Filter cigarette |
| JP2000246095A (en) * | 1999-02-26 | 2000-09-12 | Mazda Motor Corp | Article containing adsorbent |
| JP2001000165A (en) * | 1999-06-22 | 2001-01-09 | Tokyo Bio Ceramics Kenkyusho:Kk | Filter-tipped cigarette and filter for cigarette |
| US6779529B2 (en) * | 2001-08-01 | 2004-08-24 | Brown & Williamson Tobacco Corporation | Cigarette filter |
| EP1321534B1 (en) * | 2001-11-21 | 2006-02-08 | Shipley Company LLC | A method for recovering catalytic metals |
-
2002
- 2002-07-31 JP JP2003518312A patent/JP3905884B2/en not_active Expired - Fee Related
- 2002-07-31 RU RU2004106027/12A patent/RU2260359C2/en not_active IP Right Cessation
- 2002-07-31 WO PCT/JP2002/007808 patent/WO2003013287A1/en not_active Application Discontinuation
- 2002-07-31 CN CNB02815231XA patent/CN100367886C/en not_active Expired - Fee Related
- 2002-07-31 CA CA002455412A patent/CA2455412C/en not_active Expired - Fee Related
- 2002-07-31 EP EP20020755724 patent/EP1413212A1/en not_active Withdrawn
- 2002-07-31 KR KR10-2004-7001280A patent/KR20040017356A/en active Search and Examination
-
2004
- 2004-01-30 US US10/767,057 patent/US20040182401A1/en not_active Abandoned
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Also Published As
| Publication number | Publication date |
|---|---|
| CN1538816A (en) | 2004-10-20 |
| KR20040017356A (en) | 2004-02-26 |
| WO2003013287A1 (en) | 2003-02-20 |
| EP1413212A1 (en) | 2004-04-28 |
| US20040182401A1 (en) | 2004-09-23 |
| RU2260359C2 (en) | 2005-09-20 |
| JPWO2003013287A1 (en) | 2004-11-25 |
| CA2455412C (en) | 2008-01-29 |
| JP3905884B2 (en) | 2007-04-18 |
| CA2455412A1 (en) | 2003-02-20 |
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