SE509881C2 - Rökningsfilter innehållande partikelformigt sorptionsmedel - Google Patents
Rökningsfilter innehållande partikelformigt sorptionsmedelInfo
- Publication number
- SE509881C2 SE509881C2 SE9003038A SE9003038A SE509881C2 SE 509881 C2 SE509881 C2 SE 509881C2 SE 9003038 A SE9003038 A SE 9003038A SE 9003038 A SE9003038 A SE 9003038A SE 509881 C2 SE509881 C2 SE 509881C2
- Authority
- SE
- Sweden
- Prior art keywords
- filter
- wires
- sorbent
- particulate sorbent
- particulate
- Prior art date
Links
- 239000002594 sorbent Substances 0.000 title claims abstract description 25
- 230000000391 smoking effect Effects 0.000 title description 2
- 239000000758 substrate Substances 0.000 claims abstract 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 16
- 238000000576 coating method Methods 0.000 claims description 11
- 239000011248 coating agent Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 239000000853 adhesive Substances 0.000 claims description 5
- 230000001070 adhesive effect Effects 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims description 4
- 239000002250 absorbent Substances 0.000 claims 1
- 230000002745 absorbent Effects 0.000 claims 1
- 239000008187 granular material Substances 0.000 claims 1
- 239000000779 smoke Substances 0.000 abstract description 5
- 239000007787 solid Substances 0.000 abstract description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical class C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract 1
- 239000003292 glue Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 230000014759 maintenance of location Effects 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- 239000000654 additive Substances 0.000 description 5
- 235000019504 cigarettes Nutrition 0.000 description 5
- 230000000996 additive effect Effects 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 229920002301 cellulose acetate Polymers 0.000 description 4
- 239000012808 vapor phase Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 241000208125 Nicotiana Species 0.000 description 3
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229920000728 polyester Polymers 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000000796 flavoring agent Substances 0.000 description 2
- 235000019634 flavors Nutrition 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 238000009958 sewing Methods 0.000 description 2
- SNICXCGAKADSCV-JTQLQIEISA-N (-)-Nicotine Chemical compound CN1CCC[C@H]1C1=CC=CN=C1 SNICXCGAKADSCV-JTQLQIEISA-N 0.000 description 1
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical group CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 1
- -1 Acetonitrile Acrolein Acetone Methyl acetate Isoprene Chemical compound 0.000 description 1
- QSJXEFYPDANLFS-UHFFFAOYSA-N Diacetyl Chemical compound CC(=O)C(C)=O QSJXEFYPDANLFS-UHFFFAOYSA-N 0.000 description 1
- 241001191009 Gymnomyza Species 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 229920004935 Trevira® Polymers 0.000 description 1
- DHKHKXVYLBGOIT-UHFFFAOYSA-N acetaldehyde Diethyl Acetal Natural products CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 description 1
- 125000002777 acetyl group Chemical class [H]C([H])([H])C(*)=O 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- DALDUXIBIKGWTK-UHFFFAOYSA-N benzene;toluene Chemical compound C1=CC=CC=C1.CC1=CC=CC=C1 DALDUXIBIKGWTK-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000013068 control sample Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 229960002715 nicotine Drugs 0.000 description 1
- SNICXCGAKADSCV-UHFFFAOYSA-N nicotine Natural products CN1CCCC1C1=CC=CN=C1 SNICXCGAKADSCV-UHFFFAOYSA-N 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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
- A24D3/02—Manufacture of tobacco smoke filters
- A24D3/0275—Manufacture of tobacco smoke filters for filters with special features
- A24D3/0279—Manufacture of tobacco smoke filters for filters with special features with tubes
-
- 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
- A24D3/08—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent
-
- 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
- A24D3/06—Use of materials for tobacco smoke filters
- A24D3/16—Use of materials for tobacco smoke filters of inorganic materials
- A24D3/163—Carbon
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
- Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
- Y10T428/1369—Fiber or fibers wound around each other or into a self-sustaining shape [e.g., yarn, braid, fibers shaped around a core, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
- Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
- Y10T428/139—Open-ended, self-supporting conduit, cylinder, or tube-type article
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
- Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
- Y10T428/139—Open-ended, self-supporting conduit, cylinder, or tube-type article
- Y10T428/1393—Multilayer [continuous layer]
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Cigarettes, Filters, And Manufacturing Of Filters (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Filtering Materials (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB898921659A GB8921659D0 (en) | 1989-09-26 | 1989-09-26 | Particulate sorbent smoke filter |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| SE9003038D0 SE9003038D0 (sv) | 1990-09-25 |
| SE9003038L SE9003038L (sv) | 1991-03-27 |
| SE509881C2 true SE509881C2 (sv) | 1999-03-15 |
Family
ID=10663607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE9003038A SE509881C2 (sv) | 1989-09-26 | 1990-09-25 | Rökningsfilter innehållande partikelformigt sorptionsmedel |
Country Status (27)
| Country | Link |
|---|---|
| US (1) | US6080457A (en, 2012) |
| JP (1) | JP3229313B2 (en, 2012) |
| KR (1) | KR910005903A (en, 2012) |
| CN (1) | CN1052422A (en, 2012) |
| AT (1) | AT400793B (en, 2012) |
| AU (1) | AU648034B2 (en, 2012) |
| BE (1) | BE1005569A5 (en, 2012) |
| BR (1) | BR9004791A (en, 2012) |
| CA (1) | CA2024670A1 (en, 2012) |
| CH (1) | CH681945A5 (en, 2012) |
| DD (1) | DD297548A5 (en, 2012) |
| DE (1) | DE4030316B4 (en, 2012) |
| DK (1) | DK230190A (en, 2012) |
| ES (1) | ES2029164A6 (en, 2012) |
| FR (1) | FR2652278B1 (en, 2012) |
| GB (2) | GB8921659D0 (en, 2012) |
| HU (1) | HU213544B (en, 2012) |
| IE (1) | IE903244A1 (en, 2012) |
| IT (1) | IT1245844B (en, 2012) |
| LV (1) | LV10168B (en, 2012) |
| NL (1) | NL9002054A (en, 2012) |
| NO (1) | NO904172L (en, 2012) |
| PL (1) | PL287050A1 (en, 2012) |
| PT (1) | PT95420B (en, 2012) |
| RU (1) | RU1834648C (en, 2012) |
| SE (1) | SE509881C2 (en, 2012) |
| ZA (1) | ZA907357B (en, 2012) |
Families Citing this family (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2260477A (en) * | 1991-10-14 | 1993-04-21 | Cigarette Components Ltd | Smoke filter containing particulate smoke modifying additive |
| AU658372B2 (en) * | 1990-11-19 | 1995-04-13 | Cigarette Components Limited | Smoke filter containing particulate smoke modifying additive |
| GB9121782D0 (en) * | 1991-10-14 | 1991-11-27 | Cigarette Components Ltd | Cigarette filter containing particulate smoke modifying additive |
| GB2292302B (en) * | 1994-08-19 | 1998-03-04 | Cigarette Components Ltd | Concentric core filter |
| DE10307716B4 (de) * | 2002-03-12 | 2021-11-18 | Taniobis Gmbh | Ventilmetall-Pulver und Verfahren zu deren Herstellung |
| US7832412B2 (en) * | 2004-10-25 | 2010-11-16 | Phillip Morris Usa Inc. | Surface modified adsorbents and use thereof |
| DE102005005175A1 (de) | 2005-02-01 | 2006-08-10 | Reemtsma Cigarettenfabriken Gmbh | Filtercigarette |
| GB0619958D0 (en) * | 2006-10-09 | 2006-11-15 | Filtrona Int Ltd | Tobacco smoke filter |
| TW200936065A (en) * | 2008-01-23 | 2009-09-01 | Filtrona Int Ltd | Tobacco smoke filter |
| DE102008046952A1 (de) * | 2008-09-12 | 2010-03-18 | Horst Weiland | Filter für Kraft- und Schmierstoffe |
| GB0816937D0 (en) * | 2008-09-16 | 2008-10-22 | British American Tobacco Co | Filter for a Smoking Article |
| EP2324722A1 (en) | 2009-11-23 | 2011-05-25 | Philip Morris Products S.A. | Novel filter segment comprising a substrate loaded with a smoke-modifying agent |
| WO2012054111A1 (en) * | 2010-10-06 | 2012-04-26 | Celanese Acetate Llc | Smoke filters for smoking devices with porous masses having a carbon particle loading and an encapsulated pressure drop |
| US9386803B2 (en) * | 2010-01-06 | 2016-07-12 | Celanese Acetate Llc | Tobacco smoke filter for smoking device with porous mass of active particulate |
| WO2012047349A1 (en) * | 2010-10-06 | 2012-04-12 | Celanese Acetate Llc | Smoke filters for smoking devices including porous masses |
| KR101523182B1 (ko) | 2010-10-15 | 2015-05-26 | 셀라네세 아세테이트 앨앨씨 | 연기 필터용 다공질 및 그의 형성 방법 |
| GB2490740A (en) * | 2011-05-13 | 2012-11-14 | British American Tobacco Co | Filter element for a smoking article |
| US10064429B2 (en) | 2011-09-23 | 2018-09-04 | R.J. Reynolds Tobacco Company | Mixed fiber product for use in the manufacture of cigarette filter elements and related methods, systems, and apparatuses |
| PL219777B1 (pl) | 2012-03-26 | 2015-07-31 | Int Tobacco Machinery Poland | Układ czyszczący do transportera bębnowego urządzenia do podawania segmentów filtrowych do urządzenia produkującego filtry wielosegmentowe oraz sposób czyszczenia transportera bębnowego |
| US9179709B2 (en) | 2012-07-25 | 2015-11-10 | R. J. Reynolds Tobacco Company | Mixed fiber sliver for use in the manufacture of cigarette filter elements |
| US9119419B2 (en) | 2012-10-10 | 2015-09-01 | R.J. Reynolds Tobacco Company | Filter material for a filter element of a smoking article, and associated system and method |
| EA201591436A1 (ru) | 2013-03-13 | 2015-12-30 | СЕЛАНИЗ ЭСИТЕЙТ ЭлЭлСи | Дымовые фильтры для уменьшения концентрации компонентов в потоке дыма |
| CN103393218B (zh) * | 2013-08-06 | 2016-04-27 | 上海华宝生物科技有限公司 | 一种颗粒组装成型的固型滤棒及其制备方法 |
| CN104095289B (zh) * | 2014-08-05 | 2017-07-18 | 云南中烟工业有限责任公司 | 一种含缓释香料片的卷烟滤嘴及其应用 |
| CN104095290A (zh) * | 2014-08-05 | 2014-10-15 | 云南中烟工业有限责任公司 | 一种含过滤片的卷烟滤嘴及其应用 |
| US10524500B2 (en) | 2016-06-10 | 2020-01-07 | R.J. Reynolds Tobacco Company | Staple fiber blend for use in the manufacture of cigarette filter elements |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3173427A (en) * | 1962-02-05 | 1965-03-16 | Eastman Kodak Co | Tow with internally incorporated additive |
| DE1517277A1 (de) * | 1962-08-27 | 1970-02-05 | Filtrona Filter Gmbh | Ausgangsmaterial zur Herstellung von Filtern fuer Tabakwaren |
| US3354013A (en) * | 1963-11-26 | 1967-11-21 | Eastman Kodak Co | Method and apparatus for applying particulate additives to continuous filament tow |
| US3311519A (en) * | 1964-01-28 | 1967-03-28 | Eastman Kodak Co | Additive filter |
| FR1418815A (fr) * | 1964-04-01 | 1965-11-26 | Filtre perfectionné pour la fumée de tabac et son procédé de fabrication | |
| US3347247A (en) * | 1964-05-14 | 1967-10-17 | Philip Morris Inc | Tobacco smoke filter |
| US3319630A (en) * | 1964-06-29 | 1967-05-16 | Norman B Orrmins | Tobacco smoke filter |
| US3381070A (en) * | 1964-09-08 | 1968-04-30 | Eastman Kodak Co | Method of producing a filter element |
| US3336174A (en) * | 1965-04-06 | 1967-08-15 | Eastman Kodak Co | Method of making a fibrous filter product |
| US3413982A (en) * | 1965-08-04 | 1968-12-03 | Eastman Kodak Co | Tobacco smoke filter employing ethylene copolymer bonding material |
| US3407822A (en) * | 1966-02-07 | 1968-10-29 | Eastman Kodak Co | Tobacco smoke filters containing polyethylene encapsulated cellulose particles |
| BE702954A (en, 2012) * | 1967-08-22 | 1968-01-15 | ||
| GB1435255A (en) * | 1973-08-27 | 1976-05-12 | Liggett & Myers Inc | Filter rods for cigarettes |
| US4179323A (en) * | 1973-08-27 | 1979-12-18 | Liggett Group Inc. | Method for making a hollow filter rod |
| DE2513663A1 (de) * | 1975-03-27 | 1976-10-07 | Hauni Werke Koerber & Co Kg | Verfahren und vorrichtung zum formen von mundstueckhuelsen fuer stabfoermige artikel der tabakverarbeitenden industrie |
| DE3029758A1 (de) * | 1980-08-06 | 1982-04-01 | Ochs, Hans-Joachim, 4030 Ratingen | Gasadsorptionsfilter, insbesondere fuer die luftreinigung |
| JPS6060433A (ja) * | 1983-09-12 | 1985-04-08 | Hitachi Ltd | エア−フイルタ−装置 |
| CH661412A5 (en) * | 1985-03-07 | 1987-07-31 | Baumgartner Papiers Sa | Method of manufacture of filter tips for cigarettes |
| GB8823388D0 (en) * | 1988-10-05 | 1988-11-09 | Cigarette Components Ltd | Tobacco smoke filter containing particulate additive |
-
1989
- 1989-09-26 GB GB898921659A patent/GB8921659D0/en active Pending
-
1990
- 1990-09-05 GB GB9019363A patent/GB2236239B/en not_active Expired - Fee Related
- 1990-09-05 CA CA002024670A patent/CA2024670A1/en not_active Abandoned
- 1990-09-06 IE IE324490A patent/IE903244A1/en unknown
- 1990-09-12 AU AU62430/90A patent/AU648034B2/en not_active Ceased
- 1990-09-14 ZA ZA907357A patent/ZA907357B/xx unknown
- 1990-09-17 IT IT02148990A patent/IT1245844B/it active IP Right Grant
- 1990-09-18 NL NL9002054A patent/NL9002054A/nl not_active Application Discontinuation
- 1990-09-19 BE BE9000892A patent/BE1005569A5/fr not_active IP Right Cessation
- 1990-09-20 CH CH3049/90A patent/CH681945A5/fr not_active IP Right Cessation
- 1990-09-20 AT AT0191190A patent/AT400793B/de not_active IP Right Cessation
- 1990-09-21 ES ES9002425A patent/ES2029164A6/es not_active Expired - Fee Related
- 1990-09-21 FR FR9011669A patent/FR2652278B1/fr not_active Expired - Fee Related
- 1990-09-24 DK DK230190A patent/DK230190A/da not_active Application Discontinuation
- 1990-09-24 HU HU906025A patent/HU213544B/hu not_active IP Right Cessation
- 1990-09-24 DD DD90344143A patent/DD297548A5/de not_active IP Right Cessation
- 1990-09-25 NO NO90904172A patent/NO904172L/no unknown
- 1990-09-25 RU SU904831192A patent/RU1834648C/ru active
- 1990-09-25 JP JP25207290A patent/JP3229313B2/ja not_active Expired - Fee Related
- 1990-09-25 DE DE4030316A patent/DE4030316B4/de not_active Expired - Fee Related
- 1990-09-25 KR KR1019900015155A patent/KR910005903A/ko not_active Ceased
- 1990-09-25 SE SE9003038A patent/SE509881C2/sv not_active IP Right Cessation
- 1990-09-25 CN CN90108994A patent/CN1052422A/zh active Pending
- 1990-09-25 BR BR909004791A patent/BR9004791A/pt not_active IP Right Cessation
- 1990-09-26 PT PT95420A patent/PT95420B/pt not_active IP Right Cessation
- 1990-09-26 PL PL28705090A patent/PL287050A1/xx unknown
-
1992
- 1992-05-26 US US07/890,394 patent/US6080457A/en not_active Expired - Lifetime
-
1993
- 1993-10-08 LV LVP-93-1137A patent/LV10168B/en unknown
Also Published As
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| JP2634252B2 (ja) | 粒状添加剤を含むタバコの煙フィルター | |
| RU149263U1 (ru) | Фильтр для курительного изделия | |
| CA2502587C (en) | Low tar retention filter | |
| AU658372B2 (en) | Smoke filter containing particulate smoke modifying additive | |
| DE69306323T2 (de) | Rauchartikel | |
| KR102358588B1 (ko) | 담배 연기 필터 | |
| CN1071322A (zh) | 烟油过滤芯 | |
| GB2119221A (en) | Cigarette filter | |
| JPS58155073A (ja) | たばこ煙フイルタ−およびフイルタ−ロツド | |
| US5787902A (en) | Concentric core filter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NUG | Patent has lapsed |
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