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7552735 Activated carbon fiber cigarette filter  
A cigarette filter for removing gas phase constituents from mainstream cigarette smoke as the smoke is drawn through the filter primarily comprises an activated carbon fiber filter section...
7549427 Nanolayer catalysts useful in promoting oxidation, and their manufacture and use  
A novel nanocatalyst is disclosed containing titanium oxide, iron oxide, and calcium oxide. The catalyst comprises a layer of iron oxide in the gamma form supported on a titanium oxide core....
7237558 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...
7228861 Cigarette filter  
A cigarette filter has filter sections including filter materials individually wrapped with plug wrap paper, forming paper for wrapping the filter sections integrally, and tipping paper covering...
7025067 Activated charcoal filter for effectively reducing p-benzosemiquinone from the mainstream cigarette smoke  
A filter for tobacco smoke inhaling/generating/producing device, comprising stipulated amounts of specific grain sizes or combination of grain sizes of activated charcoal for effectively reducing...
6907885 High efficiency cigarette filters having shaped micro cavity fibers impregnated with adsorbent or absorbent materials  
This invention is a highly efficient filter containing fibers that contain small particle size adsorbents/absorbents such as carbon and/or silica to selectively reduce targeted components in...
6863074 Cigarette filters comprising unfunctionalized porous polyaromatic resins for removing gas phase constituents from mainstream tobacco smoke  
Cigarette filters, methods for making cigarettes and methods for smoking cigarettes are provided, which involve the use of an unfunctionalized porous polyaromatic resins, which is capable of...
6789547 Carbon technology  
Catalytically active carbons are used in cigarette filters for selective oxidation of selected gas phase components in cigarette smoke. The carbons are impregnated with transition metals and sulfur...
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,...
6591839 Filter material for reducing harmful substances in tobacco smoke  
A filter material for reducing the content of harmful substances in tobacco smoke. The filter material comprises a ground and not additionally activated expanded clay produced without adding...
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...
6471754 Purification system for tobacco-generated secondhand smoke  
A purification system for preventing secondhand tobacco smoke from reaching an ambient environment thereabout. Two components of the system include a smoke entrapment intake hood for aggregating...
6470894 Glutathione, green tea, grape seed extract to neutralize tobacco free radicals  
A composition for inclusion within a cigarette, cigar, pipe or smokeless tobacco. The composition can be included within the tobacco itself, a filter for filtering tobacco smoke once burned or even...
6344239 Method for producing a tobacco filter material  
A method for producing a tobacco filter material which is either (A) a coating process for coating the surface of a fibrous or particulate cellulose with a cellulose ester having an average...
6302114 Tobacco smoke filter  
The present invention provides a tobacco smoke filter or filter element having a longitudinally extending core (2) and a wrapper (4) engaged around the core (2), the wrapper (4) having particulate...
6257242 Filter element  
A filter element for reducing or eliminating the harmful vapor phase components of air or smoke. The filter element includes a first section and a second section. The first section is positioned...
6164288 Cigarette filter containing dry water and microcapsules  
A tobacco smoke filter containing a porous substrate having dry water and microcapsules dispersed therein. The microcapsules contain at least one compound selected from the group consisting of...
6119699 Method and apparatus for the selective removal of specific components from smoke condensates  
A smoking article capable of delivering a regulated smoke composition to a smoker, includes: a) a combustible filler wrapped in a combustible sheath; and b) at least one affinity chromatographic...
6080457 Particulate sorbent smoke filter  
A smoke filter consists of substrate threads and/or strips each pre-coated with particulate sorbent (e.g. activated carbon granules), gathered together in solid or tubular rod form e.g. within a...
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...
6006757 Cigarette holder  
A cigarette holder completely encloses the lit end of a cigarette providing purification for both sidestream smoke and mainstream smoke. It has two concentric tubes with the lit cigarette placed in...
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...
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...
5913311 Cigarette filter and filter material therefor  
A filter material comprises a cellulose acetate fiber tow containing 5-50% by weight of a water soluble material and/or a water dispersible material which are soluble in a solvent which dissolves...
5911224 Biodegradable polyvinyl alcohol tobacco smoke filters, tobacco smoke products incorporating such filters, and methods and apparatus for making same  
A porous element particularly for use as a tobacco smoke filter plug in association with a cigarette or the like wherein the matrix comprises a multiplicity of biodegradable polyvinyl alcohol...
5896861 Process for aromatizing and/or filtering tobacco smoke, cigarette end piece for carrying out the process and use of this process  
The process serves to more precisely aromatize and/or remove certain smoke fume constituents from tobacco smoke or tobacco smoke drawn from a cigarette, by means of a flowable carrier material or...
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...
5839449 Low CO cigarette  
A cigarette smoking article achieves very low levels of CO and other gas phase components by means of substantial air dilution, but has an acceptable pressure drop and sufficient delivery of...
5732718 Selective filtration device  
Disclosed is a filter for tobacco smoke composed of at least one layer of a wet-formed absorbent fibrous nonwoven composite structure containing: 1) from about 30 to about 65 percent, by weight, of...
5713377 Tobacco cartridge  
The invention relates to a coaxial tobacco cartridge with an inner core of a first tobacco blend, a sheath for the inner core, an outer jacket of a second tobacco blend, a sheath of high air...
5664586 Tobacco smoke filters and filter rods therefor  
The invention provides a cigarette filter (1) the biodegradation of the material (3) which is assisted by the incorporation of swellable means in the filter so that upon exposure to moisture the...
5662126 Smoke filter containing particulate smoke modifying additive  
A filter having a longitudinal axis and having a tube formed by at least one strip [2] which is pre-coated with particulate smoke modifying additive [4] adhering thereto and which curves through at...
5647383 Photodegradable cellulose ester tow  
The present invention is directed to a man-made fiber comprising a cellulose ester and 0.05 to 5.0% by weight of a titanium dioxide having an average particle size of less than 100 nanometers.
5622190 Concentric smoking filter having cellulose acetate tow periphery and carbon-particle-loaded web filter core  
A concentric smoking filter in which the peripheral filter medium is a fibrous tow, such as fibrous cellulose acetate tow, and the core filter medium is a web material, such as paper, loaded with...
5618620 Filter rod for filtering the smoke of a cigarette  
A filter rod for filtering the smoke of a cigarette including an acetate tow having a high crimp modulus and the acetate tow is bloomed and wrapped by a paper to form the filter rod, wherein a...
5617882 Tobacco smoking article filter with basalt fibers  
The invention concerns a tobacco smoking article comprising a tobacco rod and a filter unit containing both organic and inorganic fibers wherein the inorganic fibers are basalt fibers with diameter...
5575302 Filter for removing nitrogen oxides from tobacco smoke  
A filter for removing nitrogen oxides (NO x ) from tobacco smoke comprises A) a poly(arylene thioether), B) if appropriate a conventional filter material and C) if appropriate at least one...
5568819 Cigarette filter  
A cigarette includes a filter element including a carbon-containing paper or a paper containing molecular sieves. The paper contacts the filter material, such as cellulose acetate tow, within the...
5549125 Relating to smoking articles  
A cigarette having a region having means to reduce the vapour phase constituents of tobacco smoke, such as carbon, surrounding a tobacco smoke flow path is provided with ventilation means to...
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...
5423336 Ventilated filter cigarette  
The invention relates to a ventilated filter cigarette having a filter with three chambers, including a middle chamber containing an adsorbent. The strand-side chamber next to the middle chamber...
5360023 Cigarette filter  
Cigarettes include a filter element which have a gathered web of paper incorporating a carbonaceous material. The paper is gathered so as to include a plurality of longitudinally extending...
5327916 Filter tip cagarette  
A filter tip cigarette comprising a rod of smoking material having an inner wrapper of sidestream reducing paper containing carbon as part of its total filler content and an outer overwrapping...
5307823 Rod of smoking material and cigarettes made therefrom  
A rod of smoking material having an inner wrapper of sidestream reducing paper containing carbon as part of its total filler content and an outer overwrapping cigarette paper.
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...
5191905 Filter cigarette having filter containing absorptive synthetic graft polymer fibers produced from irradiated polyethylene reacted with vapor phase styrene or absorptive synthetic magnetic fibers  
A filter cigarette is provided which has a cigarette section formed by wrapping shredded tobacco in a cigarette paper sheet and a filter section having a filter chip integrally joined to the...
5178166 Filter cigarette  
A filter cigarette comprising a tobacco rod and filter portion comprising a fluted tubular extrusion. The flutes are blocked intermediate the rod end and mouth end of the extrusion. The tobacco rod...
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...
5115824 Filtration of tobacco using moisture free, electrically neutral hydrophobic particles  
Hydrophobic particles containing polar groups on their surfaces are incorporated into a tobacco smoking article to remove deleterious chemical compounds, both polar and non-polar, from the tobacco...
5083579 Composition for absorbing nitrogen oxide from tobacco smoke, method for absorbing nitrogen oxide using said composition, filter for purifying tobacco smoke using said composition, and method for impregnating the base of a filter with said composition  
The invention consists of a method for absorbing nitrogen oxide and carbon monoxide from tobacco smoke. It includes a base made of acetate, cellulose and acetate-cellulose fibers. The base is...
Matches 1 - 50 out of 228 1 2 3 4 5 >