GB973854A - Filter material - Google Patents
Filter materialInfo
- Publication number
- GB973854A GB973854A GB20364/63A GB2036463A GB973854A GB 973854 A GB973854 A GB 973854A GB 20364/63 A GB20364/63 A GB 20364/63A GB 2036463 A GB2036463 A GB 2036463A GB 973854 A GB973854 A GB 973854A
- Authority
- GB
- United Kingdom
- Prior art keywords
- adsorbent
- ferrous
- zinc
- citrate
- filter material
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
- B01J20/2803—Sorbents comprising a binder, e.g. for forming aggregated, agglomerated or granulated products
-
- 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
- A24D3/14—Use of materials for tobacco smoke filters of organic materials as additive
-
- 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
- A24D3/06—Use of materials for tobacco smoke filters
- A24D3/16—Use of materials for tobacco smoke filters of inorganic materials
- A24D3/163—Carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28002—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their physical properties
- B01J20/28004—Sorbent size or size distribution, e.g. particle size
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28054—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their surface properties or porosity
- B01J20/28057—Surface area, e.g. B.E.T specific surface area
- B01J20/28066—Surface area, e.g. B.E.T specific surface area being more than 1000 m2/g
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/30—Active carbon
- C01B32/312—Preparation
- C01B32/342—Preparation characterised by non-gaseous activating agents
- C01B32/348—Metallic compounds
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/30—Active carbon
- C01B32/354—After-treatment
- C01B32/384—Granulation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (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
Filter material for removing hydrogen cyanide and hydrogen sulphide from tobacco smoke comprises adsorbent granules having a specific surface area exceeding a million square centimetres per gram, a particle size between 8 and 50 mesh, and impregnated with finely-divided iron and zinc oxides, each oxide being present in an amount not less than 1% nor more than 13% by weight of the adsorbent and the two oxides together not exceeding 14% by weight thereon. The adsorbent granules are activated charcoal and one or both oxides is preferably present in an amount between 4% and 6%. The filter material may be incorporated in a cartridge, for example in a pipe, or may be enclosed between two conventional cellulose acetate filters in a cigarette mouthpiece. The filter material is made by soaking the adsorbent material in an aqueous mixed solution of (a) zinc carbonate, zinc oxide or zinc acetate, (b) a ferric ammonium citrate, ferric citrate, ferrous ammonium citrate, ferrous citrate, ferrous ammonium acetate, ferrous acetate or ferrous ammonium carbonate, and (c) ammonia, and heating the adsorbent material to decompose the adsorbent salts. The heating may be carried out in air at temperatures between 175 and 350 DEG C.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US262653A US3251365A (en) | 1963-03-04 | 1963-03-04 | Tobacco smoke filter |
Publications (1)
Publication Number | Publication Date |
---|---|
GB973854A true GB973854A (en) | 1964-10-28 |
Family
ID=22998436
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB20364/63A Expired GB973854A (en) | 1963-03-04 | 1963-05-22 | Filter material |
Country Status (15)
Country | Link |
---|---|
US (1) | US3251365A (en) |
AT (1) | AT251464B (en) |
BE (1) | BE640746A (en) |
CH (1) | CH440083A (en) |
CY (1) | CY323A (en) |
DE (1) | DE1517297B1 (en) |
DK (1) | DK111197B (en) |
ES (1) | ES287631A1 (en) |
FI (1) | FI40148C (en) |
FR (1) | FR1356061A (en) |
GB (1) | GB973854A (en) |
LU (1) | LU45118A1 (en) |
NL (2) | NL123406C (en) |
OA (1) | OA00272A (en) |
SE (1) | SE302737B (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1298029B (en) * | 1965-01-11 | 1969-06-19 | E R T Etablissement De Rech S | Filter stoppers for tobacco products, in particular for cigarettes |
US6769437B2 (en) | 2002-04-08 | 2004-08-03 | Philip Morris Incorporated | Use of oxyhydroxide compounds for reducing carbon monoxide in the mainstream smoke of a cigarette |
US6782892B2 (en) | 2002-08-30 | 2004-08-31 | Philip Morris Usa Inc. | Manganese oxide mixtures in nanoparticle form to lower the amount of carbon monoxide and/or nitric oxide in the mainstream smoke of a cigarette |
WO2005039331A2 (en) * | 2003-10-27 | 2005-05-06 | Philip Morris Products S.A. | Preparation of mixed metal oxide catalysts from nanoscale particles |
US7011096B2 (en) | 2001-08-31 | 2006-03-14 | Philip Morris Usa Inc. | Oxidant/catalyst nanoparticles to reduce carbon monoxide in the mainstream smoke of a cigarette |
US7168431B2 (en) | 2002-04-12 | 2007-01-30 | Philip Morris Usa Inc. | Partially reduced nanoparticle additives to lower the amount of carbon monoxide and/or nitric oxide in the mainstream smoke of a cigarette |
US7509961B2 (en) | 2003-10-27 | 2009-03-31 | Philip Morris Usa Inc. | Cigarettes and cigarette components containing nanostructured fibril materials |
EP2130444A1 (en) | 2008-06-06 | 2009-12-09 | Xavier Wertz | Smokable material and smokable articles |
US8051859B2 (en) | 2003-10-27 | 2011-11-08 | Philip Morris Usa Inc. | Formation and deposition of sputtered nanoscale particles in cigarette manufacture |
US8701681B2 (en) | 2003-10-27 | 2014-04-22 | Philip Morris Usa Inc. | Use of oxyhydroxide compounds in cigarette paper for reducing carbon monoxide in the mainstream smoke of a cigarette |
US9642394B2 (en) | 2011-07-21 | 2017-05-09 | British American Tobacco (Investments) Limited | Porous carbon and methods of production thereof |
Families Citing this family (89)
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 |
US3338246A (en) * | 1964-05-04 | 1967-08-29 | Union Carbide Corp | Smoking tobacco preparation |
US3330285A (en) * | 1964-07-14 | 1967-07-11 | Arthur E Bergquist | Filtering material and process |
US3420245A (en) * | 1965-02-05 | 1969-01-07 | Eastman Kodak Co | Particulate cellulose acetate tobacco smoke filter |
US3357320A (en) * | 1965-02-05 | 1967-12-12 | Brown & Williamson Tobacco | Multiple filter assembly apparatus |
US3428056A (en) * | 1965-07-21 | 1969-02-18 | Eastman Kodak Co | Tobacco smoke filter incorporating coated polyolefin additive |
US3426763A (en) * | 1965-07-21 | 1969-02-11 | Eastman Kodak Co | Tobacco smoke filter having a coated carbon additive |
US3428054A (en) * | 1965-10-18 | 1969-02-18 | Chemway Filters Inc | Filter |
US3416541A (en) * | 1965-10-24 | 1968-12-17 | Andrew C. Hoover Jr. | Cigarette filter |
US3351072A (en) * | 1965-11-16 | 1967-11-07 | Esco Corp | Tobacco smoke filter |
US3460543A (en) * | 1966-03-21 | 1969-08-12 | Liggett & Myers Inc | Cigarette filter |
US3410277A (en) * | 1966-08-10 | 1968-11-12 | Lorillard Co P | Tobacco having an oxadiazole additive |
US3434479A (en) * | 1966-09-15 | 1969-03-25 | Liggett & Myers Tobacco Co | Permanganate tobacco smoke filter |
US3424168A (en) * | 1966-11-21 | 1969-01-28 | Pittsburgh Activated Carbon Co | Removing contaminants from cigarette smoke |
US3390687A (en) * | 1967-01-23 | 1968-07-02 | Riviana Foods Inc | Tobacco smoke filter for cigarettes, cigars, pipes and the like |
US3403690A (en) * | 1967-03-07 | 1968-10-01 | Brown & Williamson Tobacco | Filters for tobacco smoke |
US3390688A (en) * | 1967-03-13 | 1968-07-02 | Eastman Kodak Co | Filter for removing oxides of nitrogen from tobacco smoke |
US3459194A (en) * | 1967-05-22 | 1969-08-05 | Bertram Eichel | Tobacco product incorporating a filter designed to inhibit the adverse effect of tobacco smoke on oral ubiquitous leucocytes |
US3527235A (en) * | 1968-05-24 | 1970-09-08 | Matra Corp | Tobacco smoke filter device |
US3502087A (en) * | 1968-07-05 | 1970-03-24 | Ernest J Romano | Cigarette filter |
US3602233A (en) * | 1969-05-06 | 1971-08-31 | Ppg Industries Inc | Smoking device incorporating microporous glass particle filter |
US3635226A (en) * | 1969-06-16 | 1972-01-18 | British American Tobacco Co | Tobacco-smoke filters |
US3664350A (en) * | 1969-12-12 | 1972-05-23 | Byron T Wall | Cigarette |
US3658069A (en) * | 1970-02-17 | 1972-04-25 | Stanford Research Inst | Filter for reducing the level of carbon monoxide in tobacco smoke |
US3596665A (en) * | 1970-03-04 | 1971-08-03 | Knud Lindgard | Tobacco smoke filter |
GB1284673A (en) * | 1970-04-20 | 1972-08-09 | British American Tobacco Co | Improvements relating to tobacco-smoke filters |
USRE28858E (en) * | 1970-09-25 | 1976-06-15 | Brown & Williamson Tobacco Corporation | Selective gas phase filter material |
US3636957A (en) * | 1971-03-05 | 1972-01-25 | Charles M Saffer Jr | Cigar smoke filter and method for improving the quality of cigar smoke |
US3703901A (en) * | 1971-03-11 | 1972-11-28 | Liggett & Myers Inc | Tobacco composition |
US3809097A (en) * | 1971-07-27 | 1974-05-07 | B Clayton | Tobacco smoke filter |
US3802441A (en) * | 1972-01-26 | 1974-04-09 | Brown & Williamson Tobacco | Tobacco smoke filter additive |
GB1381800A (en) * | 1972-04-26 | 1975-01-29 | Rothmans Of Pall Mall | Filter for tobacco smoke |
US3858587A (en) * | 1974-02-05 | 1975-01-07 | Anthony R Cavelli | Magna-tip |
US3998232A (en) * | 1974-10-31 | 1976-12-21 | Smith Avery B | Filtering tobacco smoke |
JPS5198399A (en) * | 1975-02-26 | 1976-08-30 | ||
FR2306645A1 (en) * | 1975-04-11 | 1976-11-05 | Bour Andre | Filter element for cigarettes, cigars and pipes - with mineral filter medium kept in position by cellulose-type filters |
US4038992A (en) * | 1975-09-29 | 1977-08-02 | The Japan Tobacco & Salt Public Corporation | Granular composition for tobacco filter |
US4149549A (en) * | 1976-05-17 | 1979-04-17 | Montclair Research Corporation | Cigarette and filter |
CH608177A5 (en) * | 1977-02-21 | 1978-12-29 | Neukomm Serge | |
US4266561A (en) * | 1978-04-10 | 1981-05-12 | Brown & Williamson Tobacco Corporation | Tobacco smoke filtering compositions |
US4226250A (en) * | 1978-07-12 | 1980-10-07 | Peterson Labs., Inc. | Smoking system to filter tobacco smoke |
FI67478C (en) * | 1979-11-13 | 1985-04-10 | British American Tobacco Co | FILTER FOER TOBAKSROEK |
DE3013256C2 (en) * | 1980-04-03 | 1988-06-16 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., 8000 München | Process for the production of highly specific activated carbon, the carbon obtained in the process and its use |
JPS58141775A (en) * | 1982-02-16 | 1983-08-23 | サントリー株式会社 | Filter for tobacco |
US4889143A (en) * | 1986-05-14 | 1989-12-26 | R. J. Reynolds Tobacco Company | Cigarette rods and filters containing strands provided from sheet-like materials |
US5360023A (en) * | 1988-05-16 | 1994-11-01 | R. J. Reynolds Tobacco Company | Cigarette filter |
US4964426A (en) * | 1988-09-28 | 1990-10-23 | Eastman Kodak Company | Tobacco smoke filters and process for production thereof |
US5150723A (en) * | 1988-09-28 | 1992-09-29 | Eastman Kodak Company | Process for the production of tobacco smoke filters |
US5063196A (en) * | 1989-06-23 | 1991-11-05 | Calgon Carbon Corporation | Chromium-free impregnated activated carbon for adsorption of toxic gases and/or vapors |
US5404890A (en) * | 1993-06-11 | 1995-04-11 | R. J. Reynolds Tobacco Company | Cigarette filter |
EP0693258B1 (en) * | 1994-07-19 | 1999-06-02 | British-American Tobacco (Germany) GmbH | Tobacco cartridge |
US5678576A (en) * | 1995-01-06 | 1997-10-21 | Nazaroff; William W. | Apparatus for treating environmental tobacco smoke (ETS) particle and gas-phase contaminants |
US6209547B1 (en) | 1998-10-29 | 2001-04-03 | Philip Morris Incorporated | Cigarette filter |
US6591839B2 (en) | 1999-02-17 | 2003-07-15 | Dieter Meyer | Filter material for reducing harmful substances in tobacco smoke |
US6344071B1 (en) | 2000-05-22 | 2002-02-05 | 3M Innovative Properties Company | Broad spectrum filter system for filtering contaminants from air or other gases |
US6911189B1 (en) | 1999-10-29 | 2005-06-28 | Philip Morris Usa Inc. | Filter for selective removal of a gaseous component |
MY128157A (en) * | 2000-04-20 | 2007-01-31 | Philip Morris Prod | High efficiency cigarette filters having shaped micro cavity fibers impregnated with adsorbent or absorbent materials |
BR0114463B1 (en) | 2000-09-18 | 2012-05-29 | cigarette with low smoke side-flow, cigarette and cigarette treatment paper. | |
JP2004520818A (en) * | 2000-11-10 | 2004-07-15 | ベクター、タバコ、リミテッド | Methods and products for removing carcinogens from tobacco smoke |
US6481442B1 (en) * | 2000-11-28 | 2002-11-19 | Lorillard Licensing Company, Llc | Smoking article including a filter for selectively removing carbonyls |
ITPI20010014A1 (en) * | 2001-03-05 | 2002-09-05 | Ivo Pera | COMPOUND FOR FILTERS FOR CIGARETTES, OR OTHER SMOKING ITEMS, BASED ON ANTIOXIDANT SUBSTANCES AND THE FILTER SO OBTAINED |
US6767860B2 (en) | 2001-05-10 | 2004-07-27 | 3M Innovative Properties Company | Sublimation of solid organic compounds onto substrate surfaces in the presence of a fluid impregnant |
EP1423196B1 (en) * | 2001-09-14 | 2006-07-12 | Rothmans, Benson & Hedges Inc. | A process for making rare earth metal oxide-coated microporous materials |
WO2003041521A2 (en) * | 2001-11-09 | 2003-05-22 | Vector Tobacco Inc. | Method and composition for mentholation of charcoal filtered cigarettes |
EP1455608B1 (en) * | 2001-12-19 | 2006-10-11 | Vector Tobacco Ltd. | Method and composition for mentholation of cigarettes |
AU2002361809A1 (en) * | 2001-12-19 | 2003-07-09 | Vector Tobacco Inc. | Method and compositions for imparting cooling effect to tobacco products |
NZ552999A (en) * | 2002-03-15 | 2008-06-30 | Rothmans Benson & Hedges | Low sidestream smoke cigarette with combustible paper having modified ash characteristics |
US20040231684A1 (en) * | 2003-05-20 | 2004-11-25 | Zawadzki Michael A. | Smoking article and smoking article filter |
US7240678B2 (en) * | 2003-09-30 | 2007-07-10 | R. J. Reynolds Tobacco Company | Filtered cigarette incorporating an adsorbent material |
US7669604B2 (en) * | 2003-09-30 | 2010-03-02 | R.J. Reynolds Tobacco Company | Filtered cigarette incorporating an adsorbent material |
US8066011B2 (en) | 2003-09-30 | 2011-11-29 | R. J. Reynolds Tobacco Company | Filtered cigarette incorporating an adsorbent material |
US7856990B2 (en) * | 2003-09-30 | 2010-12-28 | R. J. Reynolds Tobacco Company | Filtered cigarette incorporating an adsorbent material |
US7237558B2 (en) * | 2003-09-30 | 2007-07-03 | R. J. Reynolds Tobacco Company | Filtered cigarette incorporating an adsorbent material |
UA91841C2 (en) * | 2004-11-10 | 2010-09-10 | Филип Моррис Продактс С.А. | Capsule for arranging in cigarette filter, cigarette with capsule, method for making said capsule |
GB0506278D0 (en) * | 2005-03-29 | 2005-05-04 | British American Tobacco Co | Porous carbon materials and smoking articles and smoke filters therefor incorporating such materials |
US20070056600A1 (en) * | 2005-09-14 | 2007-03-15 | R. J. Reynolds Tobacco Company | Filtered smoking article |
US8042552B2 (en) * | 2005-12-13 | 2011-10-25 | Philip Morris Usa Inc. | Incorporation of ammonia-release compounds in smoking articles |
US20070235049A1 (en) * | 2006-03-31 | 2007-10-11 | Philip Morris Usa Inc. | Magnetic filter elements and cigarettes having magnetic filter elements |
UA92214C2 (en) * | 2006-03-31 | 2010-10-11 | Филип Моррис Продактс С.А. | Filter element, a cigarette, comprising thereof, and a method for making the filter element |
US8739802B2 (en) | 2006-10-02 | 2014-06-03 | R.J. Reynolds Tobacco Company | Filtered cigarette |
US7855261B2 (en) * | 2006-12-08 | 2010-12-21 | Eastman Chemical Company | Aldehyde removal |
US20080134893A1 (en) * | 2006-12-08 | 2008-06-12 | Thauming Kuo | Particulate filter media |
US20080135058A1 (en) * | 2006-12-08 | 2008-06-12 | Ted Calvin Germroth | Tobacco smoke filter and method for removal of aldehydes from tobacco smoke |
WO2010114096A1 (en) * | 2009-04-03 | 2010-10-07 | 日本たばこ産業株式会社 | Carbon monooxide-reducing catalyst for smoking article, and process for producing same |
US20160073695A1 (en) * | 2014-05-20 | 2016-03-17 | R. J. Reynolds Tobacco Company | Electrically-powered aerosol delivery system |
US20150335070A1 (en) * | 2014-05-20 | 2015-11-26 | R.J. Reynolds Tobacco Company | Electrically-powered aerosol delivery system |
US20190307165A1 (en) * | 2018-04-09 | 2019-10-10 | Timothy Carney | Hand-held smoke containment and filter device |
CN111085170B (en) * | 2019-12-26 | 2022-10-25 | 中国电建集团中南勘测设计研究院有限公司 | Biochar adsorbing material and application thereof |
CN113115980B (en) * | 2021-04-01 | 2023-06-30 | 中国烟草总公司郑州烟草研究院 | Method for reducing phenol content in waste gas |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB190228470A (en) * | 1902-12-24 | 1903-02-12 | Pierre Mercier | New or Improved Means for Preventing or Minimizing the Deleterious Effects of Tobacco Smoke |
GB190507808A (en) * | 1905-04-12 | 1906-03-15 | James Dewar | Improved Absorbents for Gases or Vapours and the Application thereof for Purifying or Recovering Gases or Vapours or like purposes. |
US1519470A (en) * | 1921-01-22 | 1924-12-16 | Robert E Wilson | Impregnated carbon and process of making same |
US1895724A (en) * | 1927-10-26 | 1933-01-31 | Silica Gel Corp | Process of removing sulphur compounds from gas mixtures |
FR711397A (en) * | 1931-02-17 | 1931-09-08 | Nikostop Ipari Es Kereskedelmi | Process for the preparation of a substance or filter for the purification of tobacco smoke |
DE608484C (en) * | 1931-03-06 | 1935-01-26 | Willy Stelkens | Process for reducing the toxicity of tobacco smoke |
DE612737C (en) * | 1933-09-23 | 1935-05-03 | Carbo Norit Union Verwaltungs | Filter insert for cigars, cigarettes, smoke tips or the like. |
FR766247A (en) * | 1933-12-29 | 1934-06-25 | Method and device for the absorption of nicotine and other harmful substances from tobacco into pipes, cigar holders and cigarette holders | |
US2108860A (en) * | 1934-11-12 | 1938-02-22 | Paul Bechtner | Method of and substance for treating tobacco smoke |
DE669172C (en) * | 1935-06-28 | 1938-12-19 | Helios Societa Cartaria A G L | Filters for cigarette, cigar holders or cigarette mouthpieces |
DE666035C (en) * | 1936-10-04 | 1938-10-08 | Emma Elisabeth Lutter | Process for producing a filter material for the smoke filters of cigarettes |
US2511290A (en) * | 1942-05-01 | 1950-06-13 | Us Sec War | Method of impregnating activated carbon |
US2523875A (en) * | 1942-05-01 | 1950-09-26 | Jacque C Morrell | Production of a protective carbon |
GB654994A (en) * | 1947-06-16 | 1951-07-04 | Elie Pouterman | Improvements in or relating to filters for tobacco smoke and methods of manufacturing such filters |
GB685822A (en) * | 1951-05-22 | 1953-01-14 | Mario Francone | An improved filtering agent for tobacco smoke |
US2815760A (en) * | 1951-12-24 | 1957-12-10 | Schreus Hans Theo | Tobacco smoke filter |
US2792006A (en) * | 1954-10-08 | 1957-05-14 | Anders Jordahl | Filters and filter material for use in filtering tobacco smoke |
US2795227A (en) * | 1955-02-15 | 1957-06-11 | Seldeen Martin | Tobacco smoke filter |
US2966157A (en) * | 1957-06-07 | 1960-12-27 | Eastman Kodak Co | Polyolefin tobacco smoke filters |
GB863287A (en) * | 1957-12-13 | 1961-03-22 | Lorillard Co P | Smoking tobacco product |
US3033212A (en) * | 1959-04-17 | 1962-05-08 | Eastman Kodak Co | Tobacco smoke filter containing polyolefin cobweb additive |
-
0
- NL NL293155D patent/NL293155A/xx unknown
-
1963
- 1963-03-04 US US262653A patent/US3251365A/en not_active Expired - Lifetime
- 1963-04-30 FR FR933266A patent/FR1356061A/en not_active Expired
- 1963-05-03 ES ES287631A patent/ES287631A1/en not_active Expired
- 1963-05-22 NL NL293155A patent/NL123406C/xx active
- 1963-05-22 GB GB20364/63A patent/GB973854A/en not_active Expired
- 1963-12-03 BE BE640746A patent/BE640746A/xx unknown
- 1963-12-11 FI FI244363A patent/FI40148C/en active
- 1963-12-18 SE SE14116/63A patent/SE302737B/xx unknown
- 1963-12-20 DE DE19631517297D patent/DE1517297B1/en active Pending
- 1963-12-23 AT AT1036763A patent/AT251464B/en active
- 1963-12-23 CH CH1583163A patent/CH440083A/en unknown
- 1963-12-27 LU LU45118D patent/LU45118A1/xx unknown
-
1964
- 1964-01-21 DK DK31164AA patent/DK111197B/en unknown
- 1964-07-29 OA OA50219A patent/OA00272A/en unknown
-
1965
- 1965-10-30 CY CY32365A patent/CY323A/en unknown
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1298029B (en) * | 1965-01-11 | 1969-06-19 | E R T Etablissement De Rech S | Filter stoppers for tobacco products, in particular for cigarettes |
US7011096B2 (en) | 2001-08-31 | 2006-03-14 | Philip Morris Usa Inc. | Oxidant/catalyst nanoparticles to reduce carbon monoxide in the mainstream smoke of a cigarette |
US7017585B2 (en) | 2001-08-31 | 2006-03-28 | Philip Morris Usa Inc. | Oxidant/catalyst nanoparticles to reduce tobacco smoke constituents such as carbon monoxide |
US6769437B2 (en) | 2002-04-08 | 2004-08-03 | Philip Morris Incorporated | Use of oxyhydroxide compounds for reducing carbon monoxide in the mainstream smoke of a cigarette |
US7228862B2 (en) | 2002-04-08 | 2007-06-12 | Philip Morris Usa Inc. | Use of oxyhydroxide compounds for reducing carbon monoxide in the mainstream smoke of a cigarette |
US7168431B2 (en) | 2002-04-12 | 2007-01-30 | Philip Morris Usa Inc. | Partially reduced nanoparticle additives to lower the amount of carbon monoxide and/or nitric oxide in the mainstream smoke of a cigarette |
US6782892B2 (en) | 2002-08-30 | 2004-08-31 | Philip Morris Usa Inc. | Manganese oxide mixtures in nanoparticle form to lower the amount of carbon monoxide and/or nitric oxide in the mainstream smoke of a cigarette |
WO2005039331A3 (en) * | 2003-10-27 | 2005-07-28 | Philip Morris Prod | Preparation of mixed metal oxide catalysts from nanoscale particles |
WO2005039331A2 (en) * | 2003-10-27 | 2005-05-06 | Philip Morris Products S.A. | Preparation of mixed metal oxide catalysts from nanoscale particles |
US7509961B2 (en) | 2003-10-27 | 2009-03-31 | Philip Morris Usa Inc. | Cigarettes and cigarette components containing nanostructured fibril materials |
US8011374B2 (en) | 2003-10-27 | 2011-09-06 | Philip Morris Usa, Inc. | Preparation of mixed metal oxide catalysts from nanoscale particles |
US8051859B2 (en) | 2003-10-27 | 2011-11-08 | Philip Morris Usa Inc. | Formation and deposition of sputtered nanoscale particles in cigarette manufacture |
US8281793B2 (en) | 2003-10-27 | 2012-10-09 | Philip Morris Usa Inc. | Formation and deposition of sputtered nanoscale particles in cigarette manufacture |
US8701681B2 (en) | 2003-10-27 | 2014-04-22 | Philip Morris Usa Inc. | Use of oxyhydroxide compounds in cigarette paper for reducing carbon monoxide in the mainstream smoke of a cigarette |
US9351520B2 (en) | 2003-10-27 | 2016-05-31 | Philip Morris Usa Inc. | Cigarettes and cigarette components containing nanostructured fibril materials |
EP2130444A1 (en) | 2008-06-06 | 2009-12-09 | Xavier Wertz | Smokable material and smokable articles |
US9642394B2 (en) | 2011-07-21 | 2017-05-09 | British American Tobacco (Investments) Limited | Porous carbon and methods of production thereof |
Also Published As
Publication number | Publication date |
---|---|
OA00272A (en) | 1966-05-15 |
NL293155A (en) | |
FR1356061A (en) | 1964-03-20 |
FI40148B (en) | 1968-06-28 |
CY323A (en) | 1965-10-30 |
NL123406C (en) | 1967-07-17 |
US3251365A (en) | 1966-05-17 |
LU45118A1 (en) | 1964-02-27 |
AT251464B (en) | 1967-01-10 |
CH440083A (en) | 1967-07-15 |
FI40148C (en) | 1968-10-10 |
DE1517297B1 (en) | 1970-08-06 |
BE640746A (en) | 1964-06-03 |
DK111197B (en) | 1968-06-24 |
ES287631A1 (en) | 1963-11-01 |
SE302737B (en) | 1968-07-29 |
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