EP1413212A1 - Filter for cigarette - Google Patents
Filter for cigarette Download PDFInfo
- Publication number
- EP1413212A1 EP1413212A1 EP20020755724 EP02755724A EP1413212A1 EP 1413212 A1 EP1413212 A1 EP 1413212A1 EP 20020755724 EP20020755724 EP 20020755724 EP 02755724 A EP02755724 A EP 02755724A EP 1413212 A1 EP1413212 A1 EP 1413212A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- filter
- cigarette
- alumina
- silica
- activated charcoal
- 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- Withdrawn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
- 235000019504 cigarettes Nutrition 0.000 title claims abstract description 70
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 72
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 71
- 239000000463 material Substances 0.000 claims abstract description 56
- 239000003463 adsorbent Substances 0.000 claims abstract description 45
- 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 36
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 36
- 239000000203 mixture Substances 0.000 claims description 6
- 238000001914 filtration Methods 0.000 abstract 3
- 238000007493 shaping process Methods 0.000 abstract 2
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 238000004804 winding Methods 0.000 abstract 1
- 230000035515 penetration Effects 0.000 description 12
- 239000000779 smoke Substances 0.000 description 11
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 8
- 150000002989 phenols Chemical class 0.000 description 7
- 150000003216 pyrazines Chemical class 0.000 description 7
- 241000208125 Nicotiana Species 0.000 description 5
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 5
- 239000000796 flavoring agent Substances 0.000 description 5
- 235000019634 flavors Nutrition 0.000 description 5
- 230000002195 synergetic effect Effects 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000000391 smoking effect Effects 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 230000001877 deodorizing effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002474 experimental method Methods 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
- 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
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 229960005070 ascorbic acid Drugs 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- HGAZMNJKRQFZKS-UHFFFAOYSA-N chloroethene;ethenyl acetate Chemical compound ClC=C.CC(=O)OC=C HGAZMNJKRQFZKS-UHFFFAOYSA-N 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000011790 ferrous sulphate Substances 0.000 description 1
- 235000003891 ferrous sulphate Nutrition 0.000 description 1
- 238000004817 gas chromatography Methods 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
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920002620 polyvinyl fluoride Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 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
Definitions
- the present invention relates to an improved cigarette filter capable of singularly adsorbing specified components contained in mainstream smoke.
- Japanese Patent Disclosure (Kokai) No. 63-160659 discloses a deodorizing agent (adsorbing agent) consisting of an inorganic mineral-based porous material carrying ferrous sulfate/L-ascorbic acid.
- a deodorizing agent adsorbing agent
- the document also discloses an example of a filter for a cigarette in which the deodorizing agent is contained.
- the adsorbent disclosed in the document is intended to adsorb mainly ammonia, and it is not described at all in the document what components of the mainstream smoke are removed in the case where the adsorbent is contained in the cigarette filter.
- the adsorbent in general, in the case of using a filter containing an adsorbent capable of unselectively adsorbing various components contained in the mainstream smoke, it is known to the art that the taste and flavor of the cigarette are adversely affected.
- An object of the present invention is to provide a cigarette filter, which permits prominently suppressing adverse effect on the taste and flavor of a cigarette and which permits selectively removing specified components contained in mainstream smoke.
- a cigarette filter according to the present invention comprises: filter sections including filter materials individually wrapped with plug wrap paper; forming paper for wrapping the filter sections integrally; and tipping paper covering the forming paper so as to connect the filter sections to a cigarette section to form a cigarette, characterized in that activated charcoal and silica/alumina are contained as adsorbents in at least one of the filter materials and a space between the filter materials.
- the plug wrap paper or the forming paper may contain the activated charcoal and the silica/alumina as the adsorbents.
- the cigarette filter according to the present invention has actual structures including, for example, (1) a structure that two filter materials are provided and a mixture of the activated charcoal and the silica/alumina is loaded in the space between the two filter materials, (2) a structure that two filter materials are provided and a mixture of the activated charcoal and the silica/alumina is dispersed in one of the filter materials, (3) a structure that three filter materials are provided and the activated charcoal and the silica/alumina are individually loaded in the two spaces between the three filter materials, and (4) a structure that three filter materials are provided and the activated charcoal is dispersed in one filter material and the silica/alumina is dispersed in another filter material.
- Another cigarette filter according to the present invention comprises a cigarette holder body including filter materials arranged therein, characterized in that activated charcoal and silica/alumina are contained as adsorbents in at least one of the filter materials and a space between the filter materials.
- the structure of the cigarette filter according to the present invention is not limited to those exemplified above, and various modifications are conceivable.
- the present inventor has found that, where activated charcoal and silica/alumina are used in combination as adsorbents for the cigarette filter, these adsorbents produce a synergetic effect so as to singularly remove the specified components contained in the mainstream smoke, thereby accomplishing the present invention.
- the filter materials used in the present invention include, for example, acetate, paper, and an unwoven fabric.
- activated charcoal of the adsorbents coconut shell activated charcoal may be used.
- silica/alumina of the adsorbents a product marketed under the trade name of "Kyoward 700SN” by Kyowa Chemical Industry Co., Ltd, for example, may be used.
- the product contains 63.0% by weight of SiO 2 and 10.3% by weight of Al 2 O 3 and has weight loss on drying of 14.5% by weight.
- the amount of the activated charcoal and the silica/alumina is set as follows: where the adsorbents are contained in the filter material, the total amount of the adsorbents should be set to 1 mg to 150 mg, preferably 20 mg to 60 mg, per 10 mm of the filter material, and where the adsorbents are contained in the space between the filter materials, the total amount of the adsorbents should be set to 5 mg to 300 mg, preferably 30 mg to 120 mg per 5 mm of the space.
- a cigarette filter as a control without containing any adsorbent was prepared as follows.
- Two filter materials plain filters
- Two filter materials were prepared by forming acetate having a filament fineness of 2.2 denier and a tow fineness of 40,000 denier to have a length of 10 mm, and the filter materials were wrapped with plug wrap paper, respectively, so as to obtain two filter sections.
- Two filter materials were arranged to have a 5-mm space formed therebetween, and the two filter sections were wrapped with forming paper without loading any adsorbent in the space.
- the ventilation resistance of the filter was found to be 80 mmH 2 O (1050 mL/min).
- FIG. 1 shows an example of a cigarette filter prepared in this Example.
- the cigarette filter 1 was prepared as follows.
- Two filter materials (plain filters) 2 were prepared by forming acetate having a filament fineness of 2.2 denier and a tow fineness of 40,000 denier to have a length of 10 mm, and the filter materials were wrapped with plug wrap paper, respectively, so as to obtain two filter sections.
- Two filter materials 2 were arranged to have a space formed therebetween, and the two filter sections were wrapped with forming paper under the state that a mixture of 30 mg of activated charcoal 41 and 30 mg of silica/alumina (trade name: Kyoward 700SN) 42 as adsorbents 4 was loaded in the space. In this case, the space was controlled to permit the adsorbents to have an apparent density of 100%.
- cigarette filters were also prepared with loading 30 mg of activated charcoal alone or 30 mg of silica/alumina alone as an adsorbent in the space.
- cigarette filters were prepared with loading 60 mg of activated charcoal alone or 60 mg of silica/alumina alone, i.e., an adsorbent two times as much as that in the cigarette filters noted above, in the space.
- Each of the above cigarette filters was connected with a tape to a cigarette section prepared by wrapping cut tobacco with wrapper paper so as to prepare various cigarettes for experiments differing from each other in the type of the adsorbent as shown in Table 1.
- a commercial cigarette rod was used for the cigarette section.
- a test for collecting the mainstream smoke was applied to these cigarettes as follows.
- the cigarette was connected to an automatic smoking machine with a tube (made of Tygon). A Cambridge filter was not provided.
- the automatic smoking machine was allowed to smoke the cigarette under the standard smoking conditions, with the combustion length set at 40 mm.
- the mainstream smoke from the exhaust port was collected in a gas bag (made of Tedlar) having He put therein in advance, and then the inner volume of the gas bag was adjusted with He to be 8 L in total. Fifty mL of the gas taken from the gas bag was analyzed by gas chromatography.
- Table 1 shows the penetration of each of the pyrazines and phenols.
- Acnt denotes the peak area of the specified component on the gas chromatograph in the case where the adsorbent was not used (the control)
- Aa denotes the peak area of the specified component on the gas chromatograph in the case of using the adsorbent "a”.
- Each measured value shown in Table 1 was obtained on the basis of the peak area of the specified component on the gas chromatograph.
- the predicted value of the penetration for the filter using 60 mg of activated charcoal denotes the square of the measured value of the penetration for the filter using 30 mg of activated charcoal.
- the predicted value of the penetration for the filter using 60 mg of silica/alumina denotes the square of the measured value of the penetration for the filter using 30 mg of silica/alumina.
- the predicted value of the penetration in the case of using the two types of the adsorbents shown in Table 1 denotes the calculated value of the penetration estimated from the penetration for the adsorbent in the case of using singly each of the two types of the adsorbents.
- the predicted value is represented by (Ta ⁇ Tb), where Ta denotes the penetration (measured value) of the specified component in the case of using the adsorbent "a”, and Tb denotes the penetration (measured value) of the specified component in the case of using the adsorbent "b".
- FIG. 2 shows another example of a cigarette filter according to the present invention.
- the cigarette filter 1 was prepared as follows: preparing three filter materials (plain filters) 2; forming three filter sections by wrapping plug wrap paper 3 around each of the filter materials 2; loading individually activated charcoal 41 and silica/alumina (trade name: Kyoward 700SN) 42 as adsorbents 4 in the space on the cut tobacco side and in the space on the mouth side between the three filter sections; and wrapping forming paper 5 around the three filter sections.
- the activated charcoal 41 was loaded in the space on the mouth side and the silica/alumina was loaded in the space on the cut tobacco side.
- the silica/alumina 42 may be loaded in the space on the mouth side and the activated charcoal may be loaded in the space on the cut tobacco side.
- FIG. 3 shows still another example of a cigarette filter according to the present invention.
- the cigarette filter 1 was prepared as follows: preparing a filter material (plain filter) 2 obtained by forming acetate and another filter material 21 obtained by forming acetate having adsorbents of activated charcoal 41 and silica/alumina 42 dispersed therein; forming two filter sections by wrapping plug wrap paper 3 around each of the filter materials 2 and 21; and wrapping forming paper 5 around the two filter sections.
- FIG. 4 shows still another example of a cigarette filter according to the present invention.
- the cigarette filter 1 was prepared as follows: preparing a filter material (plain filter) 2 obtained by forming acetate, a filter material (charcoal filter) 21 obtained by forming acetate having activated charcoal as an adsorbent dispersed therein, and a filter material 22 obtained by forming acetate having silica/alumina as an adsorbent dispersed therein; forming three filter sections by wrapping plug wrap paper 3 around each of the filter materials 2, 21 and 22; and wrapping forming paper 5 around the three filter sections.
- the arrangement of the filter materials 21 and 22 is not particularly limited. It is possible to arrange any of these filter materials on the cut tobacco side.
- the cigarette filter according to the present invention it is possible to add activated charcoal and silica/alumina as adsorbents to the forming paper.
- the cigarette filter according to the present invention can be applied in the form of a cigarette holder as shown in FIG. 5.
- the cigarette holder comprises a cylindrical cigarette holder body 51 having a mouth-end section 52 formed at one end, two filter materials 2 arranged inside the cigarette holder body 51, and a mixture of activated charcoal 41 and silica/alumina 42 as adsorbents 4 loaded in the space between the two filter materials 2.
- the cigarette filter shown in FIG. 5 is obtained by applying the structure shown in FIG. 1 to a cigarette holder. Likewise, it is possible to apply the structure shown in each of FIGS. 2 to 4 to a cigarette holder.
- a synergetic effect is produced by the activated charcoal and the silica/alumina so as to singularly adsorb pyrazines and phenols.
- a cigarette filter which permits selectively removing specified components contained in mainstream smoke while suppressing the effect on the flavor and taste of the cigarette to a minimum.
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)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001235202 | 2001-08-02 | ||
| JP2001235202 | 2001-08-02 | ||
| PCT/JP2002/007808 WO2003013287A1 (fr) | 2001-08-02 | 2002-07-31 | Filtre a cigarette |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1413212A1 true EP1413212A1 (en) | 2004-04-28 |
Family
ID=19066688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20020755724 Withdrawn EP1413212A1 (en) | 2001-08-02 | 2002-07-31 | Filter for cigarette |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US20040182401A1 (ja) |
| EP (1) | EP1413212A1 (ja) |
| JP (1) | JP3905884B2 (ja) |
| KR (1) | KR20040017356A (ja) |
| CN (1) | CN100367886C (ja) |
| CA (1) | CA2455412C (ja) |
| RU (1) | RU2260359C2 (ja) |
| WO (1) | WO2003013287A1 (ja) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2915062A1 (fr) * | 2007-04-17 | 2008-10-24 | Laurent Schwartz | Utilisation de moyens d'absorption du co2 dans un filtre de cigarette pour reduire le taux de co2 inhale par un fumeur. |
| EP2308329A1 (en) * | 2004-12-03 | 2011-04-13 | Filtrona International Limited | Tobacco smoke filter production |
| EP3967159A1 (de) * | 2020-09-10 | 2022-03-16 | Andreas Setzer | Vorrichtung zum filtern von rauch |
Families Citing this family (7)
| 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 |
| US20080264433A1 (en) * | 2006-03-09 | 2008-10-30 | Postech Academy-Industry Foundation | Cucurbituril Added Cigarettes and Manufacturing Method Thereof |
| WO2008018617A1 (fr) * | 2006-08-10 | 2008-02-14 | Daicel Chemical Industries, Ltd. | Filtre à cigarette |
| WO2010001493A1 (ja) * | 2008-07-02 | 2010-01-07 | ダイセル化学工業株式会社 | シリカゲルからなるフィルタ素材およびそれを用いたたばこフィルタ |
| PL215954B1 (pl) * | 2010-08-13 | 2014-02-28 | Int Tobacco Machinery Poland | Sposób wytwarzania wielosegmentowych sztabek filtrowych |
| US9655382B2 (en) * | 2014-09-16 | 2017-05-23 | John R. Zade | Responsible cigarette holder |
| WO2025237456A1 (de) * | 2024-05-14 | 2025-11-20 | Eylem Krimmer | Filter für cannabis- oder tabakkonsum |
Family Cites Families (17)
| 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 |
| JPS6168135A (ja) * | 1984-09-11 | 1986-04-08 | Topy Ind Ltd | たばこ煙中の一酸化炭素除去剤 |
| JPS63160659A (ja) * | 1986-12-25 | 1988-07-04 | 日本たばこ産業株式会社 | 脱臭剤 |
| CN2031615U (zh) * | 1988-06-18 | 1989-02-01 | 仇叔椗 | 微孔过滤吸附香烟嘴 |
| AU658372B2 (en) * | 1990-11-19 | 1995-04-13 | Cigarette Components Limited | Smoke filter containing particulate smoke modifying additive |
| SE500634C2 (sv) * | 1992-12-22 | 1994-08-01 | House Of Blend Ab | Filtercigarett |
| CN1145756A (zh) * | 1995-09-20 | 1997-03-26 | 李魏贵 | 无毒香烟、雪茄 |
| JPH09299073A (ja) * | 1996-05-11 | 1997-11-25 | Takashi Sato | 健康煙草 |
| JPH11235169A (ja) * | 1998-02-23 | 1999-08-31 | Daicel Chem Ind Ltd | たばこエレメントおよびその製造方法 |
| CA2350724C (en) * | 1998-11-09 | 2005-01-11 | Japan Tobacco Inc. | Filter cigarette |
| JP2000246095A (ja) * | 1999-02-26 | 2000-09-12 | Mazda Motor Corp | 吸着処理剤を備えた物品 |
| JP2001000165A (ja) * | 1999-06-22 | 2001-01-09 | Tokyo Bio Ceramics Kenkyusho:Kk | フィルター付きタバコ及びタバコ用フィルター |
| US6779529B2 (en) * | 2001-08-01 | 2004-08-24 | Brown & Williamson Tobacco Corporation | Cigarette filter |
| DE60209095T2 (de) * | 2001-11-21 | 2006-08-17 | Shipley Co., L.L.C., Marlborough | Verfahren zum Rückgewinnen von katalytischer Metalle |
-
2002
- 2002-07-31 EP EP20020755724 patent/EP1413212A1/en not_active Withdrawn
- 2002-07-31 WO PCT/JP2002/007808 patent/WO2003013287A1/ja not_active Ceased
- 2002-07-31 CA CA002455412A patent/CA2455412C/en not_active Expired - Fee Related
- 2002-07-31 JP JP2003518312A patent/JP3905884B2/ja not_active Expired - Fee Related
- 2002-07-31 KR KR10-2004-7001280A patent/KR20040017356A/ko not_active Ceased
- 2002-07-31 RU RU2004106027/12A patent/RU2260359C2/ru not_active IP Right Cessation
- 2002-07-31 CN CNB02815231XA patent/CN100367886C/zh not_active Expired - Fee Related
-
2004
- 2004-01-30 US US10/767,057 patent/US20040182401A1/en not_active Abandoned
Non-Patent Citations (1)
| Title |
|---|
| See references of WO03013287A1 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2308329A1 (en) * | 2004-12-03 | 2011-04-13 | Filtrona International Limited | Tobacco smoke filter production |
| FR2915062A1 (fr) * | 2007-04-17 | 2008-10-24 | Laurent Schwartz | Utilisation de moyens d'absorption du co2 dans un filtre de cigarette pour reduire le taux de co2 inhale par un fumeur. |
| WO2008125990A3 (en) * | 2007-04-17 | 2009-07-09 | Laurent Schwartz | Use of means for trapping co2 in a filter for preventing inflammation, cancer and cardiovascular diseases in a subject exposed to tobacco smoke |
| EP3967159A1 (de) * | 2020-09-10 | 2022-03-16 | Andreas Setzer | Vorrichtung zum filtern von rauch |
| WO2022053597A1 (de) * | 2020-09-10 | 2022-03-17 | Andreas Setzer | Vorrichtung zum filtern von rauch |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20040017356A (ko) | 2004-02-26 |
| CN1538816A (zh) | 2004-10-20 |
| WO2003013287A1 (fr) | 2003-02-20 |
| JPWO2003013287A1 (ja) | 2004-11-25 |
| RU2260359C2 (ru) | 2005-09-20 |
| CA2455412A1 (en) | 2003-02-20 |
| US20040182401A1 (en) | 2004-09-23 |
| CN100367886C (zh) | 2008-02-13 |
| JP3905884B2 (ja) | 2007-04-18 |
| CA2455412C (en) | 2008-01-29 |
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