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| Number | Title | Issue Date |
| 7827997 | Filtered cigarette incorporating an adsorbent material A filter element incorporating an adsorbent material is provided. The filter element may comprise a first section of filter material and a second section of filter material spaced apart to form a compartment therebetween. The compartment may be filled with one or mo... | 11/09/2010 |
| 7153447 | Formulation of a highly viscous mineral oil for the production of filters for tobacco products The present invention relates to an emulsion for use as a lubricant in the production of threads, containing: a) 30 to 90 percent by weight of a mineral oil with a viscosity of at least 8.5 mm2/s at 100° C. and b) 11 to 60 perce... | 12/26/2006 |
| 6924029 | Cellulose acetate tow and method of making same A cigarette filter tow is a cellulose acetate tow having a high uncrimping energy (UCE) and a low fly. In one embodiment, the average UCE is greater than 280 and the average fly is less than or equal to 0.030 grams per 30 minutes. In another embodiment, the average ... | 08/02/2005 |
| 6779529 | Cigarette filter A cigarette filter includes a multiple section filter which reduces the level of predetermined smoke constituents. The filter includes a fibrous filter plug section, a selective adsorbent section, and a general adsorbent section co-axially aligned in tandem. The sel... | 08/24/2004 |
| 6776168 | Disintegratable cigarette filter The invention relates to a high performance cigarette filter on the basis of cellulose ester fibers or filaments which can be mechanically disintegrated. The inventive high-performance cigarette filter is characterized in that a) the fiber weight (or filament weight... | 08/17/2004 |
| 6718987 | Smokers′ article The present invention pertains to the tobacco industry and may be used in the production of smokers' articles that include a mouthpiece and consist of a new product that conjugates the functional properties and qualities of cigarettes with a cardboard mouthpiece and... | 04/13/2004 |
| 6530377 | Cigarette filter containing dry water and a porphyrin A tobacco smoke filter comprising a porous substrate comprising dry water and a porphyrin dispersed therein. The porous substrate can further comprise microcapsules. The microcapsules can comprise one or more substances selected from the group consisting ... | 03/11/2003 |
| 6145511 | Filter cigarette A description is given of a filter cigarette, whose filter a) contains fibrous filter material, b) contains an additive with an antimutagenic action on the cigarette smoke in a quantity of less than 15 wt. %, based on the fiber weight of the filter and c) on s... | 11/14/2000 |
| 6026819 | Tobacco smoke filter incorporating sheath-core bicomponent fibers and tobacco smoke product made therefrom Bicomponent fibers comprising a core of a thermoplastic material, preferably polypropylene, and a sheath of a blend of the core-forming polymer and an ethylene-vinyl acetate copolymer are used to produce tobacco smoke filter elements which may be incorpor... | 02/22/2000 |
| 5979460 | Method of producing tobacco filters A tobacco filter with a circumferential length of 17 to 27 mm is prepared by creping or embossing, with a roller of a temperature not lower than 100° C., a sheet-like material comprising not less than 20% by weight of a cellulose ester component and havi... | 11/09/1999 |
| 5967149 | Tobacco filter material and a method of producing the same Using a slurry containing a particulate or fibrous cellulose ester and a wood pulp with a Canadian standard freeness of 100 to 800 ml in a ratio of 10/90 to 90/10 (weight %), a tobacco filter material in the form of a sheet having a nonwoven web structure... | 10/19/1999 |
| 5947127 | Tobacco filters and method of producing the same A filter rod is produced by adding a water-soluble polymer in the form of an aqueous solution or dispersion, or in a particulate form, to a tow of cellulose ester fiber, with the amount of any water used being controlled within 25 parts by weight relative... | 09/07/1999 |
| 5947126 | Environmentally disintegratable tobacco smoke filter rod A bundle of cellulose acetate fibers is bonded together with a water-soluble fiber-to-fiber bonding agent. The water-soluble fiber-to-fiber bonding agent may include 60-99 wt. % of a water-soluble binder and 40-1 wt. % of a plasticizer. As to the specific... | 09/07/1999 |
| 5856006 | Tobacco filter material and a method for producing the same A tobacco filter material containing fibers which have a core and a surface layer which surrounds the core, wherein the core comprises a non-esterified cellulose and the surface layer comprises a cellulose ester. The fiber may be (A) a cellulose fiber coa... | 01/05/1999 |
| 5823201 | Tobacco filters and a method of producing the same A tobacco filter with a circumferential length of 17 to 27 mm is prepared by creping or embossing, with a roller of a temperature not lower than 100° C., a sheet-like material comprising not less than 20% by weight of a cellulose ester component and havi... | 10/20/1998 |
| 5706833 | Tobacco filters and method of producing the same A filter rod is produced by adding a water-soluble polymer in the form of an aqueous solution or dispersion, or in a particulate form, to a tow of cellulose ester fiber, with the amount of any water used being controlled within 25 parts by weight relative... | 01/13/1998 |
| 5690126 | Tobacco filter materials and tobacco filter as produced by using the same A tobacco filter is obtained by shaping a sheet material having a web structure and comprising (1) cellulose acetate or other cellulose ester short staple, and (2) a binder fiber selected from polysaccharides or their derivatives and biodegradable polymer... | 11/25/1997 |
| 5570707 | Cigarette with filter A filter for a cigarette is provided with a filter which includes a tacky substance which increases the filters ability to absorb particles of ash, debris and the like, thus preventing them from reaching the user. The filter may employ a heat-sensitive re... | 11/05/1996 |
| 5462801 | Filter Tow, method for the production thereof, as well as tobacco smoke filter element and method for its production A filter tow from cellulose acetate filaments and/or staple fibers is described on the surface of which an additive from cellulose chain-splitting enzymes is present, at least the surface of the filaments and staple fibers consisting of a cellulose acetat... | 10/31/1995 |
| 5415186 | Substrates material for smoking articles Disclosed is a stabilized substrate composition for smoking articles, particularly cigarettes. In general, the stabilized substrate composition comprises an admixture of a binder and an aerosol forming material which plasticizes the binder, together with ... | 05/16/1995 |
| 5396911 | Substrate material for smoking articles Disclosed is a stabilized substrate composition for smoking articles, particularly cigarettes. In general, the stabilized substrate composition comprises an admixture of a binder and an aerosol forming material which plasticizes the binder, together with ... | 03/14/1995 |
| 5275859 | Tobacco smoke filter Disclosed are articles, such as smoke filters, which contain fibers that have complex geometry in combination with tobacco smoke modifying agents such as flavorants. The fibers are preferably made of a polyester such as poly(ethylene terephthalate) and pr... | 01/04/1994 |
| 5246017 | Cigarette and cigarette filter element therefor A cigarette comprises a blend of tobacco materials and a filter element provided from a non-woven thermoplastic material. The non-woven material comprises polyester or polypropylene fibers. The non-woven material is in intimate contact with an acidic mate... | 09/21/1993 |
| 5226432 | Method of and apparatus for draping rod-like fillers into webs of wrapping material A continuous rod-like filler of tobacco or filter material for tobacco smoke and a continuous web of cigarette paper or other wrapping material are advanced at a plurality of different speeds toward and into a wrapping mechanism wherein the web is draped ... | 07/13/1993 |
| 5155140 | Use of adhesive mixtures containing gum arabic for glueing the longitudinal seam of cigarette tube The use of adhesive mixtures containing--per 100 parts by weight water--40 to 120 parts gum arabic, 3 to 80 parts by weight water soluble starch degradation products and/or carboxymethyl starch and/or gelatinized starch and, optionally, typical preservati... | 10/13/1992 |
| 5150721 | Tobacco smoke filter material and process for production thereof Disclosed is a novel process of preparing tobacco smoke filter material, wherein an acidic compound such as citric acid is dissolved in a cellulose acetate spinning solution prior to spinning the filaments of the filter material.... | 09/29/1992 |
| 5150723 | Process for the production of tobacco smoke filters Disclosed is a novel tobacco smoke filter material comprising a filter element such as cellulose acetate crimped tow having at least about 1 weight percent of micro acicular crystals of a compound such as sodium carbonate present on the surfaces of the fi... | 09/29/1992 |
| 5105834 | Cigarette and cigarette filter element therefor A cigarette comprises a blend of tobacco materials and a filter element provided from a non-woven thermoplastic material. The non-woven material comprises polyester or polypropylene fibers. The non-woven material is in intimate contact with a water solubl... | 04/21/1992 |
| 5052415 | Process for the impregnation of fibers of a tobacco smoke filter with dicarboxylic or polycarboxylic acids or anhydrides thereof Fibers of tobacco smoke filters which have been impregnated with dicarboxylic or polycarboxylic acids or anhydrides thereof can be obtained by dissolving anhydrides of dicarboxylic or polycarboxylic acids in volatile or physiologically acceptable organic ... | 10/01/1991 |
| 5022964 | Nonwoven fibrous web for tobacco filter A nonwoven fibrous web material that contains cellulose ester fibers, cellulose ester fibrets and a minor amount of activated fusible fibers uniformly dispersed throughout is particularly well suited as a filter media. The activated fusible fibers are eff... | 06/11/1991 |
| 5012828 | Tobacco smoke filter containing particulate additive A tobacco smoke filter comprising a rod of tobacco smoke filtering material incorporating particulate additive, wherein at least some of the particulate additive is concentrated on one or a restricted number of threads and/or strips incorporated within th... | 05/07/1991 |
| 5000198 | Agent for removing noxious tobacco components An agent for removing noxious tobacco components is disclosed, which is attached to or sprinkled over sliced tobacco leaves when producing a cigarette. The agent is produced by mixing menthol in the form of crystalline menthol microcapsules, disodium glyc... | 03/19/1991 |
| 4924887 | Tobacco rods and filters Tobacco containing cigarette filter plugs comprise strands of tobacco material which are bound with an activated binding agent. The filter plugs exhibit good firmnless and integrity, and provide cigarettes exhibiting a unique tobacco taste. Filter plugs a... | 05/15/1990 |
| 4907609 | Method of increasing the hardness of cigarette filter elements Filter element and method for increasing the hardness thereof by contacting filter plug material with effective amounts of (a) a water soluble resin (or copolymer) having available chelate bond-forming chemical groups and (b) a water soluble nontoxic salt... | 03/13/1990 |
| 4896683 | Selective delivery and retention of nicotine by-product from cigarette smoke A method for controlling nicotine delivery through a cigarette filter relative to total particulate pass-through concentration, and the corresponding filter utilizing, as a filter modifier component, at least one water-soluble metal salt of a weak acid, t... | 01/30/1990 |
| 4821750 | Cigarette filters Skinless shaped articles having increased specific surface area and based on cellulose esters, including both solid and hollow fibers, can be produced with at least one surface having a striated or fibrous appearance and a cellular interior structure by e... | 04/18/1989 |
| 4770193 | Manufacture of tobacco smoke filters A smoke filter and a method for manufacturing the filter from a continuous multifilament filter tow are described in which a portion of the filter tow is treated with a dye to impart color to a discrete elongated zone of dye-treated filaments that is in s... | 09/13/1988 |
| 4763674 | Method and device for controlling hydrogen cyanide and nitric oxide concentrations in cigarette smoke Method for reducing normal concentrations of hydrogen cyanide and/or nitrogen oxide by-products in cigarette smoke, by using, as garniture feed for a cigarette filter rod-making apparatus, one or more substrates, one or more surfaces thereof being treated... | 08/16/1988 |
| 4752348 | Localized liquid additive applicator system for continuous cylindrical product A continuous rod of a product such as a cigarette filter material is coated with a treating liquid by being passed axially through a cylindrical applicator zone comprising a permeable cylindrical wall, the cylindrical wall being concentrically enclosed wi... | 06/21/1988 |
| 4729390 | Tobacco smoke filtering material Disclosed are tobacco smoke filtering materials for selectively removing deleterious material from tobacco smoke without at the same time removing desirable smoke vapors which contribute to aroma and taste. The filtering materials comprise a fibrous artic... | 03/08/1988 |
