WO2002024005A2 - Low sidestream smoke cigarette with combustible paper - Google Patents
Low sidestream smoke cigarette with combustible paper Download PDFInfo
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- WO2002024005A2 WO2002024005A2 PCT/CA2001/001323 CA0101323W WO0224005A2 WO 2002024005 A2 WO2002024005 A2 WO 2002024005A2 CA 0101323 W CA0101323 W CA 0101323W WO 0224005 A2 WO0224005 A2 WO 0224005A2
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- cigarette
- catalyst
- adjunct
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- 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
- A24D1/00—Cigars; Cigarettes
- A24D1/02—Cigars; Cigarettes with special covers
Definitions
- the invention relates to sidestream smoke reduction in burning cigarettes and the like. More particularly, the invention relates to a composition for use with cigarette paper, cigarette wrapper, or wrapper for a cigar for treating and visably reducing sidestream smoke.
- U.S. Patents 2,755,207 and 4,225,636 EP patent application 0 740 907 and WO 99/53778.
- U.S. Patent 2,755,207 describes a low sidestream smoke cigarette paper.
- the cigarette paper on burning yields a smoke substantially free of obnoxious components.
- the cigarette paper is cellulosic material in fibre form. It has intimately associated therewith a finely divided mineral type siliceous catalyst material.
- the cigarette paper which is essentially non-combustible and refractory remains substantially unchanged during combustion of the cigarette paper and functions like a catalyst in modifying the combustion of the paper.
- Suitable siliceous catalysts include acid-treated clays, heat-treated montmorillonite and natural and synthetic silicates containing some hydrogen atoms which are relatively mobile.
- Suitable mixed silica oxides include silica oxides with alumina, zirconia, titania, chromium oxide and magnesium oxide.
- Other silicas include the oxides of silicon and aluminum in a weight ratio of 9:1 of silica to alumina.
- U.S. Patent 4,225,636 describes the use of carbon in the cigarette paper to reduce organic vapour phase components and total particulate matter found in sidestream smoke. In addition, the carbon results in a substantial reduction in visible sidestream smoke emitting from a burning cigarette. Activated carbon is preferred as the carbon source. The . use of the activated carbon results in a slight drop in visible sidestream smoke. Up to 50% of the cigarette paper may be finely divided carbon. The carbon-coated papers may be used as the inner wrap for the tobacco rod in combination with a conventional cigarette.
- European patent application 0 740 907 published November 6, 1996 describes the use of zeolites in the tobacco of the cigarette to alter the characteristics of the mainstream smoke and in particular remove various components from the mainstream smoke such as some of the tars. The zeolite as provided in the tobacco, also apparently change the characteristics of the sidestream smoke. The zeolites used were of a particle size between 0.5 mm to 1.2 mm.
- Non-combustible sheet of treatment material for reducing sidestream smoke emissions.
- the sheet is used as a wrap and is applied over conventional cigarette paper of a conventional cigarette.
- the wrap has a very high porosity to allow the cigarette to burn at or close to conventional free-bum rates while at the same time reduce visible sidestream smoke emissions.
- the non- combustible wrap includes non-combustible ceramic fibres, non-combustible activated carbon fibres as well as other standard materials used in making the wrap.
- the wrap also includes zeolites or other similar sorptive materials and an oxygen donor/oxygen storage metal oxide oxidation catalyst.
- U.S. Patents 4,433,697 and 4,915,117 describe the incorporation of ceramic fibres in a cigarette paper manufacture.
- U.S. Patent 4,433,697 describes at least 1% by weight of certain ceramic fibres in the paper furnish in combination with magnesium oxide and/or magnesium hydroxide fillers to reduce visible sidestream smoke emanating from the burning cigarette.
- the furnish of fibre pulp, ceramic fibres and fillers are used to make a paper sheet on conventional paper making machines.
- the ceramic fibres may be selected from the group of polycrystalline alumina, aluminum-silicate and amorphous alumina.
- a filler of magnesium hydroxide or magnesium oxide is used and is coated on or applied to the fibres of the sheet.
- U.S. Patent 4,915,117 describes a non-combustible sheet for holding tobacco.
- the thin sheet is formed from ceramic materials which upon burning produces no smoke.
- the ceramic sheet comprises a woven or non- woven fabric of ceramic fibre or a mixture of paper and ceramics thermally decomposed at high temperature.
- the ceramic fibre may be selected from inorganic fibres such as silica fibre, silica-alumina fibre, alumina fibre, zirconia fibre, of alumino borosilicate and glass fibre.
- the ceramic sheet is formed by binding these materials by inorganic binders such as silica gel or alumina gel.
- the fibres are a preferably 1 to 10 micrometers in diameter.
- Sol gels have been applied to conventional cigarette paper in order to reduce sidestream smoke, particularly sol gels made from a magnesium, aluminate, calcium aluminate, titania, zirconia and aluminum oxide, as described in Canadian Patent 1,180,968 and Canadian Patent application 2,010,575.
- Canadian Patent 1,180,968 describes the application of magnesium hydroxide in the form ofan amorphous gel as a cigarette paper filler component to improve ash appearance and sidestream smoke reduction.
- the magnesium hydroxide gel is coated on or applied to the fibres of the sheet of the cigarette paper.
- Canadian patent application 2,010,575 describes the use of gels produced by a solution gelation or sol-gel process for controlling the combustion of wrappers for smoking articles.
- the gels may be applied as coatings to paper fibres before the paper is formed into wrappers.
- the wrappers are useful for reducing visible sidestream smoke.
- the metal oxides for the sol gels may be aluminum, titanium, zirconium, sodium, potassium or calcium.
- Catalysts have also been directly applied to cigarette paper, such as described in Canadian Patent 604,895 and U.S. Patent 5,386,838.
- Canadian Patent 604,895 describes the use of platinum, osmium, iridium, palladium, rhodium and rhuthenium in the cigarette paper. These metals function as oxidation catalysts to treat vapours arising from combustion of the paper wrapper. Optimum catalytic effect has been provided by the metal palladium.
- the metal particles in a suitable medium are dispersed onto the face of a paper wrapper before it is applied to the cigarette.
- U.S. Patent 5,386,838 describes the use of a sol solution comprising a mixture of iron and magnesium as a smoke suppressive composition.
- the smoke suppressive composition is made by co-precipitating iron and . magnesium from an aqueous solution in the presence of a base.
- the iron magnesium composition demonstrates high surface area of approximately 100 m 2 /g to approximately 225 m 2 /g when heated to a temperature between 100°C and approximately 500°C.
- the iron magnesium composition may be added to paper pulp which is used to make smoke suppressive cigarette paper.
- the iron magnesium composition apparently functions as an oxidation catalyst and reduces the amount of smoke produced by the burning cigarette.
- the catalyst may also be applied to the tobacco, for example, as described in U.S.
- Patent 4,248,251 palladium, either in metallic form or as a salt, may be applied to the tobacco.
- the presence of palladium in tobacco reduces the polycyclic aromatic hydrocarbons in the mainstream smoke.
- Palladium is used in combination with an inorganic salt or nitric or nitrous acid.
- Such nitrates include lithium, sodium, potassium, rubidium, cesium, magnesium, calcium, strontium, lanthanum, cerium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, erbium, scandium, manganese, iron, rhodium, palladium, copper, zinc, aluminum, gallium, tin, bismuth, hydrates thereof and mixtures thereof.
- Catalysts have also been used in tubes to reduce sidestream smoke such as described in published PCT application WO 98/16125.
- Catalytic materials have been used in aerosol types of cigarettes which do not produce sidestream or mainstream smoke per se, but instead a flavoured aerosol.
- aerosol cigarettes include those described in U.S. patents 5,040,551, 5,137,034 and 5,944,025, which use catalysts to provide the necessary heat generation to develop the aerosol.
- catalyst systems include oxides of cerium, palladium or platinum.
- this invention provides a sidestream smoke control system which not only looks and tastes like a conventional cigarette but as well, in accordance with aspects thereof, ashes like a normal cigarette.
- the invention provides for a significant reduction in sidestream smoke in its various applications. It has been found that such reduction in sidestream smoke can surprisingly be achieved by the combined use in a sidestream smoke treatment composition, of an oxygen storage and donor metal oxide oxidation catalyst and an essentially non-combustible finely divided porous particulate adjunct for the catalyst.
- This composition may be used with normal combustible cigarette paper to provide acceptable free-burn rates while minimizing or virtually eliminating visible sidestream smoke.
- the adjunct for the catalyst may be any suitable essentially non-combustible particulate material such as clays, carbon materials such as milled carbon fibres, mineral based materials such as metal oxides and metal oxide fibres, ceramics such as milled ceramic fibres and high surface area porous particles.
- the catalyst adjunct is most preferably an essentially non-combustible high surface area sorptive material such as activated carbon or zeolites.
- the sorptive materials are zeolites and in particular, hydrophobic zeolites. The zeolites are especially preferred when used in combination with a cerium based catalyst.
- the sidestream smoke treatment composition may be applied in various ways.
- the composition may be used as a filler in the manufacture of a ' cigarette paper, impregnated in a cigarette paper, or as a cpating(s) or a layer(s) on the exterior and/or interior of a cigarette paper.
- the resultant low sidestream smoke treatment cigarette paper may have a range of porosities from very low porosities of about 0.5 Coresta units through to high porosity of about 1,000 Coresta units. Preferred porosities are usually less than 200 Coresta units and most preferred porosities are usually in the range of about 30 to 60 Coresta units. It is appreciated that such treated paper may be used as a multiple wrap.
- the treated paper may be applied as an outer wrap over a cigarette having conventional cigarette paper.
- the sidestream smoke treatment composition may be applied as a coating oh both or either side of a paper for a multiple- usually a double- wrapped cigarette, or impregnated into the paper, or may be incorporated as a filler in the manufacture of the paper for single or multiple wraps of cigarette paper.
- the sidestream smoke treatment composition may in one embodiment be sandwiched between two papers.
- the sidestream smoke treatment composition may be coated on the side of a paper adjacent the tobacco rod where different loadings of the composition sandwiched in between the two papers may be provided.
- the sidestream smoke treatment composition may be coated onto both sides of the paper placed on the tobacco rod, where different loadings may be provided.
- a second paper may be used as a further wrap thereover.
- the cigarette treatment paper may have typical ashing characteristics which is a significant benefit over non- combustible cigarette tubes and wraps of the prior art.
- the treatment paper may be a conventional cellulose based cigarette paper which, with the treatment composition, surprisingly does not add to the sidestream smoke.
- the catalyst and adjunct are used in combination.
- the two components may be co-mingled as a filler, for example, in the manufacture of cigarette paper.
- the catalyst and the adjunct are also co- mingled, usually as a slurry, and applied as such.
- the materials may be applied as individual contacting thin layers to develop a multilayer coating. Such layers may be of a thickness usually less than that of conventional cigarette paper and due to their intimate contacting nature, function as though they were combined and co-mingled.
- a low sidestream smoke cigarette comprises a conventional tobacco rod and a combustible treatment paper having a sidestream smoke treatment composition for said rod, said treatment composition comprises in combination, an oxygen storage and donor metal oxide oxidation catalyst and an essentially non-combustible finely divided porous particulate adjunct for said catalyst.
- a low sidestream smoke cigarette comprising a conventional tobacco rod, and a combustible treatment paper having a sidestream smoke treatment composition comprising cerium oxide which functions both as an oxygen storage and donor metal oxide oxidation catalyst and an essentially non-combustible finely divided porous particulate adjunct for the catalyst.
- a furnish composition for use in making a cigarette treatment paper for reducing sidestream smoke emitted from a burning cigarette comprises in combination an oxygen storage and donor metal oxide oxidation catalyst and an essentially non-combustible finely divided porous particulate adjunct.
- a low sidestream smoke cigarette comprising a conventional tobacco rod, and a combustible treatment paper having a sidestream smoke treatment composition, said treatment composition comprising in combination, an oxygen storage and donor metal oxide oxidation catalyst and an essentially non-combustible zeolite adjunct for said catalyst.
- a slurry composition for application to cigarette paper for reducing sidestream smoke emitted from a burning cigarette comprises in combination with an oxygen storage and donor metal oxide oxidation catalyst, an essentially non-combustible finely divided porous particulate adjunct for said catalyst.
- a combustible cigarette paper for use on a smokable tobacco rod of a cigarette for reducing sidestream smoke emitted from a burning cigarette
- the cigarette treatment paper including a sidestream smoke treatment composition comprising in combination an oxygen storage and donor metal oxide oxidation catalyst and an essentially non-combustible finely divided porous particulate adjunct.
- a method for reducing sidestream smoke emitted from a burning cigarette comprises treating sidestream smoke with a treatment composition carried by a combustible cigarette paper, said treatment composition comprising in combination, an oxygen storage and donor metal oxide oxidation catalyst and an essentially non-combustible finely divided porous particulate adjunct for said catalyst.
- a low sidestream smoke cigarette comprising a conventional tobacco rod and a combustible cigarette paper having and a sidestream smoke treatment composition associated with the cigarette paper, wherein said treatment composition reduces sidestream smoke by greater than about 90%.
- cigarette combustible cigarettes
- treatment paper it is understood to encompass combustible wrappers and the like which may be used on cigarettes, cigars and the like. The wrapper may be used as a single layer of cigarette paper or multiple layer of cigarette paper.
- the wrapper may be applied as the sole layer of cigarette paper or as a wrap over conventional cigarette paper of a cigarette.
- the treatment paper may include as its substrate conventional cigarette paper or similar combustible product with a wide range of porosities.
- the conventional tobacco rod encompasses tobacco compositions normally used in smokable cigarettes. These rods are to be distinguished from tobacco components used in aerosol cigarette.
- Figure 1 is a schematic view of a spray technique for applying the treatment composition to a cigarette paper
- Figure 2 is a schematic view of extruding a film of the treatment composition onto the cigarette paper
- Figure 3 is a schematic view of roll coating the treatment composition on cigarette paper
- Figure 4 is a schematic view of the impregnation of a coating of the treatment composition into the cigarette paper
- Figure 5 is a schematic view of mixing the treatment composition with the paper pulp in the manufacture of cigarette paper
- Figure 6 is a perspective view of a tobacco rod having the treatment paper of this invention applied thereto;
- Figure 7 shows an alternative embodiment of Figure 6
- Figure 8 is a perspective view of a tobacco rod having the treatment composition sandwiched between two layers of cigarette paper as applied to the tobacco rod;
- Figure 9 is a perspective view of a double wrap for the tobacco rod where treatment paper is applied over conventional cigarette paper.
- the sidestream smoke treatment composition invention comprises, an oxygen storage and donor metal oxide oxidation catalyst used in combination with a non-combustible finely divided porous particulate adjunct for the catalyst. It has been unexpectantly found that when these two components are used in combination either alone or with other constituents, a very surprising degree of sidestream smoke control is provided, without affecting the taste of the cigarette and, in most embodiments, without affecting the manner in which the cigarette burns. Furthermore, since this composition may be applied as a coating to or filler within the cigarette paper, the resultant low sidestream smoke cigarette looks like a conventional cigarette.
- the adjunct may be any suitable essentially non-combustible, finely divided porous particulate material which does not affect the flavour and taste of the mainstream smoke and does not give off any undesirable odours in the sidestream vapours.
- the particulate material is physically stable at the elevated temperatures of the burning cigarette coal.
- the porous adjunct has a high surface area, usually in excess of about 20 m 2 /g of adjunct. In order for the particles to achieve such surface areas, they must be porous.
- the porous adjunct has pores with an average diameter of less than 100 nm
- the pores have an average diameter of less than 20 nm (200 A) and even more preferred are pores with an average diameter of 0.5 to lOn ⁇ i (5-100 A). With zeolite based materials, the pores have an average diameter in the range of about 0.5 to 1.3 nm (5-13 A). It is preferred that the particulate adjunct has an average particle size of less than about 30 ⁇ m, more preferably less than about 20 ⁇ m and most preferably about l ⁇ m to 5 ⁇ m.
- Non-combustible materials may be porous clays of various categories commonly used in cigarette paper manufacture, such as the bentonite clays or treated clays having high surface areas.
- Non- combustible carbon materials may also be used including milled porous carbon fibres and particulates.
- Various metal oxides may be used such as porous monolithic mineral based materials which include zirconium oxide, titanium oxides, cerium oxides, aluminum oxides such as alumina, metal oxide fibres such as zirconium fibres and other ceramics such as milled porous ceramic fibres and mixtures thereof.
- cerium oxide it has been found that it is capable of functioning as a finely divided adjunct and as an oxygen storage and donor cerium oxide oxidation catalyst.
- Other adjunct materials include high surface area materials such as activated carbon and zeolites.
- the adjunct may also comprise high surface area highly sorptive materials which are non-combustible, inorganic finely divided particulate, such as molecular sieves which include zeolites and amorphous materials such as silica/alumina and the like.
- molecular sieves which include zeolites and amorphous materials such as silica/alumina and the like.
- the most preferred are zeolites such as silicalite zeolites, faujasites X, Y and L zeolites, beta zeolites, Mordenite zeolites and ZSM zeolites.
- Preferred zeolites include hydrophobic zeolites and mildly hydrophobic zeolites which have affinity for hydrophobic and mildly hydrophobic organic compounds of such sidestream smoke.
- the zeolite materials provide a highly porous structure which selectively absorbs and adsorbs components of sidestream smoke.
- the highly porous structure generally comprise macropores amongst the particles and micropores within the particles which branch off of the macropores. It is believed that the captured components in the macropores and micropores in presence of the cerium oxide or other suitable oxidation catalysts at the high temperature of the burning cigarette, converts such captured components into oxidized compounds which continue to be trapped in the adsorbent material or are released as invisible gases which have sufficiently low tar and nicotine levels so that the sidestream is invisible or at a low desired level.
- the zeolite materials may be characterized by the following formula: M m M' n M" P [aA10 2 • b Si0 2 • cT0 2 ] wherein
- M is a monovalent cation
- M' is a divalent cation
- M" is a trivalent cation
- a, b, c, n, m, and p are numbers which reflect the stoichiometric proportions, c, m, n or p can also be zero,
- Al and Si are tetrahedrally coordinated Al and Si atoms
- T is a tetrahedrally coordinated metal atom being able to replace Al or Si
- the ratio of b/a of the zeolite or the zeolite-like material has a value of about 5 to 300 and the micropore size is within the range of about 0.5 to 1.3 nm (5 to 13 A).
- Preferred zeolites of the above formula have the specific formulas of faujasites ((Na 2 , Ca, Mg) 29 [Al 58 Si 1 34 ⁇ 3 84_ • 240 H 2 0; cubic), ⁇ -zeolites (Na n [Al n Si 64 . n 0 128 ] with n ⁇ 7; tetragonal), Mordenite zeolites (Na 8 [Al 8 Si 0 O 96 ] • 24 H 2 0; orthorhombic), ZSM zeolites (Na n [Al n Si 96-n 0 192 ] ⁇ 16 H 2 0 with n ⁇ 27; orthorhombic), and mixtures thereof.
- sorptive material various grades may be used. This is particularly true with gradients of zeolites which can be custom designed to selectively adsorb, for example, high boiling point materials, mid boiling point materials and low boiling point materials. This can lead to layers of the zeolite composition where the cerium or other suitable catalyst contemplated by this invention is preferably dispersed throughout these layers. The layers may then be bound on cigarette paper for the tobacco rod by using a binder or an adhesive which may be, for example, polyvinylacetate, polyvinyl alcohol, carboxy methyl cellulose (CMC), starches and casein or soya proteins, and mixtures thereof
- the oxygen donor and oxygen storage metal oxide oxidation catalyst is most preferably selected from the transition metal oxides, rare earth metal oxides, (such as scandium, yttrium, and lanthanide metal series, i.e. lanthanum) and mixtures thereof. It is appreciated that the catalyst may be in its metal oxide form or a precursor of the metal oxide which, at the temperature of the burning cigarette, is converted to a metal oxide to perform its catalytic activities.
- the transition metal oxides may be selected from oxides of the group of metals from the Periodic Table consisting of groups IVB, VB, VIB, VIIB, VIII and IB metals and mixtures thereof.
- Preferred metals from the transition metal group are oxides of iron, copper, silver, manganese, titanium, zirconium, vanadium and tungsten and from the rare earth group are oxides of lanthanide metals such as oxides of cerium.
- cerium may be used in admixture with any one of the transition metals.
- other metal oxide oxidation catalysts may be used with the oxygen storage and oxygen donor type of catalyst.
- Such other metal catalysts include precious metals and metals from groups IIA, IVA and mixtures thereof. Examples include tin, platinum, palladium and mixtures thereof.
- the cerium catalyst precursor may be in the form of a cerium salt such as a cerium nitrate or other dispersible forms of cerium which are applied in solution or sol to the sorptive material and which is converted to cerium oxide at the high temperature of the burning cigarette to then function as a catalyst.
- the term catalyst is intended to include any catalyst precursor.
- the catalyst such as, cerium oxide, is used in combination with the adjunct material. It has been found that when the two are used separate from one another or in spaced apart, non- adjacent layers, the ability to control sidestream smoke is greatly reduced. Although in certain arrangements, some sidestream smoke control can be achieved.
- the catalyst is substantially adjacent the adjunct material.
- many other constituents may be used in addition to the combination of the oxygen storage and oxygen donor metal oxide oxidation catalyst and the adjunct. Additional additives may be used to further enhance the treatment of the sidestream smoke or alter other characteristics of the cigarette. Such additional additives may be mixed in with the treatment composition or used elsewhere in the cigarette construction, providing ofcourse that such additives do not appreciabley impact negatively on the ability of the treatment composition to treat the sidestream smoke.
- the composition may be formulated in a variety of ways which achieve co-mingling of the cerium with the adsorptive material.
- the adsorptive material may be sprayed with or dipped in a cerium salt solution such as cerium nitrate or cerium sol to impregnate the surface, of the adsorptive material with cerium.
- Cerium oxide may be prepared as a separate fine powder which is mixed with the fine powder of the adsorptive material. It is particularly preferred that the catalyst powders have an average particle size of less than about 30 ⁇ m and preferably less than 20 ⁇ m and most preferably of about 1.0 to 5 ⁇ m to ensure intimate mixing and co-mingling of the materials.
- the selected catalyst has a surface area which is such to ensure that the catalyst action sites are available to the migrating sidestream smoke components. This may result in catalyst particle size being greater than 30 ⁇ m in certain embodiments, if the catalyst particles are properly distributed to achieve the necessary degree of sidestream smoke component oxidation.
- the cerium oxide is one of the few metal oxides which can perform both functions of the invention, namely as the oxygen storage and oxygen donor catalyst and as well as the adjunct.
- the porous cerium oxide particles can be made with the high surface areas and an average particle size required for the adjunct.
- the cerium oxide is used with the cigarette paper in a first amount as the catalyst and a second amount as the adjunct in the treatment composition. Such amounts of the cerium oxide correspond generally with the amounts used for the catalyst and adjunct in accordance with other aspects of the invention to make up the total loading.
- the cerium may be formulated as a solution dispersion, such as cerium oxide sol, or the like and applied to the sorptive material such as zeolite. It is then dried and fired to provide cerium oxide particles fixed on the surfaces of the adsorptive material. When the cerium oxide particles are fixed to adjunct surfaces such as surfaces of zeolite, the average particle size may be less than about 1.O ⁇ m.
- the relative amounts of cerium oxide fixed to the zeolite may range from about 1% to 75% by weight based on the total equivalent cerium oxide and zeolite content.
- the preferred relative amounts of cerium oxide fixed to the zeolite may range from about 10% to 70% by weight based on the total equivalent cerium oxide and zeolite content.
- the method generally involves making a catalytic cerium oxide-coated zeolite particulate material having at least 1% by weight of cerium oxide coated on outer surfaces of the zeolite particulate material, based on the total equivalent cerium oxide and zeolite content.
- the method generally comprises the steps of: i) combining an amount of a colloidal dispersion of cerium oxide hydrate with a compatible zeolite particulate material to form a slurry, the amount of the colloidal dispersion being sufficient to provide, when heat treated as per step (ii), greater than 20% by weight of the cerium oxide, the zeolite particulate material having an average pore size of less than 2 ⁇ A and the colloidal dispersion having an average particle size of at least 2 ⁇ A, to position thereby, the colloidal dispersion on the outer surfaces of the zeolite; and ii) heat treating the slurry firstly, at temperatures below about 200°C and secondly, above about 400°C, to fix the resultant cerium oxide on the outer surfaces of the zeolite particulate material, to provide a free flowing bulk particulate.
- the adjunct sorptive material may be dipped in a solution of cerium salt and dried and heat treated to form the cerium oxide on the surfaces of the sorptive material.
- the surprising activity of the sidestream smoke treatment composition permits its use in cigarette papers having a wide range of porosities. It has also been found that the composition does not have to be used in cigarette papers that just have high porosities.
- the treatment composition works equally well in papers with very low porosities of about 0.5 through to very high porosity of about 1,000 Coresta units. Preferred porosities are usually less than 200
- Coresta units and most preferred porosities are usually in the range of about 30 to 60 Coresta units. It is appreciated that the paper may be used as a double or multiple wrap. The paper may be applied as an outer wrap over a cigarette having conventional cigarette paper. It is appreciated that depending upon the porosity, certain combinations of the catalyst and adjunct may work better than others.
- the composition may be simply sprayed onto either side or both sides of the cigarette paper and absorbed into the paper.
- the paper 10 is conveyed in the direction of arrow 12.
- the treatment composition 14 as a slurry is sprayed by spray nozzle 1 onto the paper 10 to provide a coating 18 which is dried on the paper.
- the composition may be extruded as a film to the surface of the paper and may be used as a single or multiple wrap.
- a film coating device 20 contains the slurried treatment composition 14.
- the film coater 20 lays a thin film 22 on the paper 10 which is conveyed in the direction of arrow 12.
- the film is dried to provide a coating 24 on the paper 10.
- the treatment composition may be applied to a conventional cigarette on the exterior of the cigarette paper . Coating may be achieved by a roller applicator 26, as shown in Figure 3.
- the treatment composition 14 is applied as a layer 28 on the roller 30.
- a doctor knife 32 determines the thickness of a layer 34 which is then laid onto the paper 10 which is conveyed in the direction of arrow 12. The layer is then dried to form a coating 36 on the paper 10.
- Impregnation is achieved by using the coating roller 24 of Figure 4 and the resultant layer 36 with paper 10 is passed in the direction of arrow 12 through pressure rollers 38 and 40 which force the layer of material into the paper 10 to thereby impregnate constituents of the treatment composition into the paper.
- MylarTM sheet or other suitable continuous sheet may be used to transfer a coating composition from the MylarTM sheet to the surface of the cigarette paper. This type of transfer coating is useful when the substrate sheet may not readily accept the roll coating of a composition due to physical strength characteristics of the paper or the like.
- a further alternative is to incorporate the treatment composition into the manufacture of paper.
- the composition may be introduced to the paper furnish as a slurry.
- the treatment composition in the furnish 42 is stirred by stirrer 44 to form a slurry in the tank 46.
- the slurry is transferred in the conventional paper making manner and is laid as a layer 48 on a moving conveyor 50 to form the resultant cigarette paper 52.
- the treatment composition is incorporated in the final paper product.
- Another alternative is to sandwich the treatment composition between paper layers to form a double cigarette paper wrap on tobacco rods.
- the composition may be applied such as by the spraying technique of Figure 1 on the interior of the outer paper or the exterior of the inner paper.
- the composition as a layer is sandwiched between the two papers.
- Each paper may be of half of the thickness of conventional cigarette paper so that the double wrap does not add appreciably to the overall diameter of the cigarette as is readily handled by cigarette making machines.
- the tobacco rod 54 has, for example, the cigarette paper 10 wrapped therearound with the coating 18 on the outside of the paper.
- the cigarette paper 10 can be applied with the coating 18 on the inner surface of the paper adjacent the tobacco rod 54.
- FIG 8 Another alternative, as shown in Figure 8, is to sandwich the coating 18 between cigarette papers 56 and 58.
- the papers 56 and 58 with the intermediate coating 18 may be formed as a single cigarette wrapper which is applied to the tobacco rod 54.
- FIG 9 A further alternative is shown in Figure 9 where the tobacco rod 54 is covered with conventional cigarette paper 60. Over the conventional paper 60 is the cigarette paper 52 of Figure 5 with the treatment composition incorporated therein. It is also appreciated that paper 52 with the treatment composition incorporated therein may be applied directly to the tobacco rod 54.
- the aforementioned procedures for providing the sidestream smoke treatment composition within or onto a desired cigarette paper may be varied with respect to the loadings provided and the number of wraps used on a tobacco rod. For example, two or more papers with various loadings of the composition, on both sides of the papers, may be used such that the loading to one side is reduced, making the coating application easier.
- processing aids include laminating materials such as polyvinylalcohol, starches, CMC, casein and other types of acceptable glues, various types of binding clays, inert fillers, whiteners, viscosity modying agents, inert fibrous material such as zirconium fibres and zirconium/cerium fibres, such as described in U.S. application Serial No. , entitled
- Penetrating agents may also be employed to carry the composition into the paper. Suitable diluents such as water are also used to dilute the composition so that it may be spray coated, curtain coated, air knife coated, rod coated, blade coated, print coated, size press coated,, roller coated, slot die coated, technique of transfer coating and the like onto a conventional cigarette paper.
- Desirable loadings of the treatment composition onto or into the cigarette paper, wrapper or the like is preferably in the range of from about 2.5 g/m to about 125 g/m . Most preferably the. loading is in the range of about 2.5g/m 2 to about 100 g/m 2 . Expressed as a percent by weight, the paper may have from about 10% to 500% by weight and most preferably about 10% to 400% by weight of the treatment composition. While these loadings are representative for single paper, it is understood by one skilled in the art that these total loadings may be provided with the use of two or more papers.
- the sidestream smoke reduction composition is used normally as a water slurry of the composition.
- the slurry may be incorporated in the furnish of the paper in the paper making process, or is coated onto the paper by various coating processes or impregnated into the paper by various impregnating methods.
- the preferred average particle size of the catalyst and adjunct for the slurry is in the range of about l ⁇ m to about 30 ⁇ m and most preferably about 1 ⁇ m to about 5 ⁇ m.
- the preferred relative amounts of catalyst fixed to the adjunct may range from about 1% to 75%, more preferably from about 10% to 70%, and even more preferably from about 20% to 70% by weight based on the total equivalent catalyst and adjunct content.
- the adjunct in combination with the catalyst, retards the rate at which the modified cigarette with catalyst would burn to now return the cigarette to a conventional free-burn rate;
- the catalyst is capable of achieving a significant conversion of sidestream smoke components to noticeably reduce visible sidestream smoke by greater than 50%, and normally greater than 80% and most preferably greater than 95%, as illustrated in the following examples.
- Preamble Cigarette Prototype 359-3 was furnished with double wrap of coated conventional cigarette paper.
- the loading of coating per treatment paper was 47g/m 2 .
- the functional ingredients in the coating comprises an oxygen donor and oxygen storage metal oxide oxidation catalyst, specifically cerium oxide co-mingled with or fixed to a suitable adjunct, specifically a Y-type zeolite CBV 720 from Zeolyst International of Valley Forge, Pennsylvania, U.S.A..
- These functional ingredients were rendered suitable for coating on conventional cigarette paper through formulation with a standard coating package that included, but is not limited to, a wetting agent, pH enhancer, binder system, surfactant, and defoamer.
- 1 part total functional ingredient was formulated with 0.002 parts wetting agent, 0.06 parts pH enhancer, 0.18 parts binder system, 0.01 parts surfactant, and 0.00024 parts defoamer.
- Such coating packages are well known to those skilled in the field of coating.
- the prepared cigarettes were smoked in a standard smoking machine.
- the amount of sidestream smoke was quantified visually on a scale of 0 to 8, 0 being no sidestream smoke and 8 being sidestream smoke as generated by a conventional cigarette.
- the treatment paper significantly reduces visual side stream smoke, up to 95% or more reduction versus a conventional cigarette.
- Side stream smoke measurements made on Prototype 359-3 following Health Canada Method T-212 for determination of tar and nicotine in sidestream tobacco smoke show, in Table 1 A a 96% reduction in side stream nicotine and a 73% reduction in side stream tar.
- This % reduction of tar correlates with a 95 % reduction of visual side stream smoke as shown in Table IB.
- Gas Chromatography/Mass Spectrometer results of Table 1C are consistent with these measurements, showing an 82% reduction of aromatic hydrocarbons and an 88% reduction of nicotine in the side stream smoke.
- acceptable visual readings of about 2 corresponds with a tar content in the sidestream of about 10 mg.
- a visual reading above 2 is not preferred, although it is understood that there may be circumstances where a visual rating greater than 2 may be justified, for example, where less sidestream smoke reduction is desired.
- the treatment paper does not materially alter the main stream smoke.
- Main Stream Smoke Measurements on Prototype 359-3 The measurements are made using the following procedures:ISO Procedure, ISO 3308, see Fourth Ed., April 15, 2000 (for measurement of routine analytical cigarette), ISO Procedure, ISO 4387, see Second Ed., October 15, 1991 (for determination of total and nicotine-free dry particulate matter using a routine analytical smoking machine), ISO Procedure, ISO 10315, see First Ed., August 1, 1991 (for determination of nicotine in smoke condensates - gas chromatographic method), ISO Procedure, ISO 10362-1, see Second Ed., December 15, 1999 (for determination of water in smoke condensates - gas chromatographic method), ISO Procedure, ISO 3402, see Fourth Ed., December 15, 1999 (atmosphere for conditioning and testing), ISO Procedure , ISO 8454, see
- the measurable amounts of furan and derivatives are 159 micrograms per conventional cigarette versus 156 micrograms per Prototype 359-3.
- the measurable amounts of hydrocarbons are 202 micrograms per conventional cigarette versus 177 micrograms per Prototype 359-3.
- the measurable amounts of other carbonyls, specifically triacetin, are 478 micrograms per conventional cigarette and 674 micrograms 5 per Prototype 359-3.
- the treatment paper is combustible, burns in a conventional manner, and ashes.
- the burning characteristics were measured quantitatively following the
- Prototype 359-3 as shown in Table 3 A, has an average puff count of 8.7 puffs per prototype compared to an average 9.5 puffs per conventional cigarette.
- the calculated burn rates show in Table 3 A that
- Prototype 359-3 has substantially the same burn rate of 0.09 mm/sec as the conventional cigarette. Burn temperature profile measurements were taken in accordance with a technique described in published PCT application WO 99/53778, the subject matter of which is hereby incorporated by reference. The results of Table 3 A are consistent with the above measurements, showing the
- Prototype burn characteristics both during the puff and the burn are substantially the same as the conventional cigarette.
- the control had a slightly lower temperature as measured at the paper surface, at the centreline of the cigarette and at a position V_ way along the radius of the cigarette.
- Prototype 359-3 had essentially the same temperature.
- the coated treatment paper porosities were measured using procedures described in FILTRONA Operation Manual for Paper Permeability Meter PPM 30 100, and shown in Table 4A.
- the treatment paper used in furnishing Prototype 359-3 has a porosity of 9 Coresta.
- the coated treatment paper used in furnishing Cigarette Prototype 359-6 has a porosity of 32 Coresta.
- Prototype 359-3 was found to have acceptable taste compared to a conventional cigarette with the same tobacco blend.
- Prototype 359-6 was furnished in a similar double wrap manner to Prototype 359-3, as described in the Preamble.
- the loading of the coating per wrap was 34.5 g/m .
- the functional ingredients in the coating were identical to the functional ingredients listed in the Preamble, but included additional adjunct materials, ZSM-5 type zeolite CBV 2802 from Zeolyst, and Beta Type Zeolite CP-811EL from Zeolyst. These functional ingredients were rendered suitable for coating on conventional cigarette paper through formulation with a similar standard coating package as described in the preamble.
- 1 part total functional ingredient was formulated with 0.002 parts wetting agent, 0.06 parts pH enhancer, 0.16 parts binder system, 0.01 parts surfactant, and 0.00024 parts defoamer.
- Prototype 2-143-1 shows ability of cerium oxide to function as both a high surface area adjunct and as an oxygen donor metal oxide oxidation catalyst.
- Prototype 2-143-2 shows the affects of high surface area cerium oxide co-mingled with Zeolite CBV 720 adjunct material to reduce visual side stream smoke.
- Prototype 2-133-3 shows the affects of the oxygen donor metal oxide oxidation catalyst iron oxide co-mingled with the high surface area CBV 720 adjunct material to reduce visual side stream smoke. At loadings of about one-half the loadings for the cerium based catalyst, iron oxide achieved a visual sidestream smoke reduction of about 2.5.
- EXAMPLE 6 Particles ranging in an average diameter from 2 ⁇ m to more than 16 ⁇ m are capable of reducing the visual side stream smoke to the levels described in the previous examples. Although with a smaller particle size it is possible to apply lower coating loadings to meet the same visual side stream smoke levels as shown in Table 6A.
- the functional ingredients in the coatings of Prototypes 2-50-1, 2-50-2, and 2-50-3 were identical to the functional ingredients listed in the preamble, only differing in the average particle size of the adjunct.
- KC 514 Base Paper (Schweitzer-Mauduit International of Alpharetta, Georgia U.S.A.) has basis weight of 25 g/m 2 , and a starting porosity before coating of 50 Coresta units. *DS-Double Paper, Single Coating (Sandwich Style)
Landscapes
- Cigarettes, Filters, And Manufacturing Of Filters (AREA)
- Paper (AREA)
- Laminated Bodies (AREA)
- Manufacture Of Tobacco Products (AREA)
- Insulated Conductors (AREA)
- Catalysts (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
Description
Claims
Priority Applications (16)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NZ524598A NZ524598A (en) | 2000-09-18 | 2001-09-18 | Low sidestream smoke cigarette with combustible paper |
AU9156701A AU9156701A (en) | 2000-09-18 | 2001-09-18 | Low sidestream smoke cigarette with combustible paper |
KR1020037003945A KR100822698B1 (en) | 2000-09-18 | 2001-09-18 | Low sidestream smoke cigarette with combustible paper |
BRPI0114463-4A BR0114463B1 (en) | 2000-09-18 | 2001-09-18 | cigarette with low smoke side-flow, cigarette and cigarette treatment paper. |
CA002421177A CA2421177C (en) | 2000-09-18 | 2001-09-18 | Low sidestream smoke cigarette with combustible paper |
EP01971572A EP1318727B1 (en) | 2000-09-18 | 2001-09-18 | Low sidestream smoke cigarette with combustible paper |
AU2001291567A AU2001291567B2 (en) | 2000-09-18 | 2001-09-18 | Low sidestream smoke cigarette with combustible paper |
MXPA03002305A MXPA03002305A (en) | 2000-09-18 | 2001-09-18 | Low sidestream smoke cigarette with combustible paper. |
DK01971572.1T DK1318727T3 (en) | 2000-09-18 | 2001-09-18 | Cigarette with low side smoke and combustible paper |
JP2002528050A JP4890729B2 (en) | 2000-09-18 | 2001-09-18 | Low sidestream smoke cigarette with combustible wrapping paper |
AT01971572T ATE448701T1 (en) | 2000-09-18 | 2001-09-18 | CIGARETTE WITH LOW SIDEFLOW SMOKE AND COMBUSTABLE PAPER |
DE60140556T DE60140556D1 (en) | 2000-09-18 | 2001-09-18 | CIGARETTE WITH LOW SIDE FLUID AND COMBUSTIBLE PAPER |
CN018191002A CN1474661B (en) | 2000-09-18 | 2001-09-18 | Low sidestream smoke cigarette with combustible paper |
NO20031187A NO20031187L (en) | 2000-09-18 | 2003-03-14 | Cigarette with combustible paper and low sideström smoke |
HK04105473.1A HK1062519A1 (en) | 2000-09-18 | 2004-07-23 | Low sidestream smoke cigarette with combustible paper |
AU2006220389A AU2006220389B2 (en) | 2000-09-18 | 2006-09-19 | Low sidestream smoke cigarette with combustible paper |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US23344000P | 2000-09-18 | 2000-09-18 | |
US60/233,440 | 2000-09-18 |
Publications (2)
Publication Number | Publication Date |
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WO2002024005A2 true WO2002024005A2 (en) | 2002-03-28 |
WO2002024005A3 WO2002024005A3 (en) | 2002-09-06 |
Family
ID=22877265
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CA2001/001324 WO2002024006A2 (en) | 2000-09-18 | 2001-09-18 | Low sidestream smoke cigarette with non-combustible treatment material |
PCT/CA2001/001323 WO2002024005A2 (en) | 2000-09-18 | 2001-09-18 | Low sidestream smoke cigarette with combustible paper |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CA2001/001324 WO2002024006A2 (en) | 2000-09-18 | 2001-09-18 | Low sidestream smoke cigarette with non-combustible treatment material |
Country Status (21)
Country | Link |
---|---|
US (7) | US6810884B2 (en) |
EP (2) | EP1318727B1 (en) |
JP (2) | JP4890729B2 (en) |
KR (2) | KR20030048401A (en) |
CN (3) | CN1474660A (en) |
AT (1) | ATE448701T1 (en) |
AU (5) | AU2001291568B2 (en) |
BR (1) | BR0114463B1 (en) |
CA (2) | CA2421192A1 (en) |
DE (1) | DE60140556D1 (en) |
DK (1) | DK1318727T3 (en) |
ES (1) | ES2336646T3 (en) |
HK (2) | HK1127378A1 (en) |
MX (2) | MXPA03002306A (en) |
NO (2) | NO20031187L (en) |
NZ (3) | NZ524598A (en) |
PT (1) | PT1318727E (en) |
RU (2) | RU2277364C2 (en) |
TW (2) | TW550051B (en) |
WO (2) | WO2002024006A2 (en) |
ZA (2) | ZA200301825B (en) |
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4433697A (en) * | 1982-04-07 | 1984-02-28 | Olin Corporation | Wrapper for smoking articles and method |
US4915117A (en) * | 1987-08-05 | 1990-04-10 | Midori Ito | Cigarette |
WO1998016125A1 (en) * | 1996-10-15 | 1998-04-23 | Rothmans, Benson & Hedges, Inc. | Cigarette sidestream smoke and free-burn rate control device |
WO1999053778A2 (en) * | 1998-04-16 | 1999-10-28 | Rothmans, Benson & Hedges Inc. | Cigarette sidestream smoke treatment material |
Family Cites Families (208)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA835684A (en) | 1970-03-03 | S. Pare Donat | Safety cigarette | |
CA604895A (en) | 1960-09-13 | Durandeaux Jan | Method and means for neutralizing obnoxious cigarette combustion products | |
US1211071A (en) | 1916-03-11 | 1917-01-02 | George H Brown | Ash-retaining cigarette and the like. |
US1581451A (en) * | 1925-10-06 | 1926-04-20 | Frank C Hewitt | Fire-safe cigarette |
US1862679A (en) | 1930-05-09 | 1932-06-14 | John A Holsman | Cigarette jacket |
US2496265A (en) * | 1944-07-25 | 1950-02-07 | Standard Oil Dev Co | Hydrocarbon synthesis process |
US2495700A (en) * | 1944-10-09 | 1950-01-31 | Koppers Co Inc | Silica-alumina-nickel dehydrogenation catalyst |
US2436733A (en) * | 1944-12-28 | 1948-02-24 | Standard Oil Dev Co | Zinc oxide-bismuth oxide catalyst |
US2499733A (en) * | 1947-07-23 | 1950-03-07 | Rubbio Antonio Di | Cigarette holder |
US2541837A (en) * | 1949-02-12 | 1951-02-13 | Schroff Joseph | Safety cigarette holder |
US2666437A (en) * | 1950-06-10 | 1954-01-19 | Lattof Alphonse | Cigarette extinguisher |
US2723243A (en) * | 1952-07-30 | 1955-11-08 | Universal Oil Prod Co | Manufacture of silica-metal oxide spheroids |
IT541844A (en) | 1953-12-04 | |||
US3013987A (en) * | 1958-09-24 | 1961-12-19 | Union Carbide Corp | Metal loading of molecular sieves |
US3013982A (en) * | 1958-09-24 | 1961-12-19 | Union Carbide Corp | Metal loading of molecular sieves |
GB928089A (en) | 1959-02-10 | 1963-06-06 | James Noel Davies | New or improved combustion control means for cigarettes |
US3193493A (en) * | 1960-10-17 | 1965-07-06 | Socony Mobil Oil Co Inc | Catalytic cracking process with a catalyst composition comprising an aluminosilicate containing beryllium |
US3220418A (en) | 1962-03-05 | 1965-11-30 | Samuel L Cohn | Cigarette |
US3220416A (en) | 1963-03-04 | 1965-11-30 | Edith M Brown | Foot pad |
NL293155A (en) * | 1963-03-04 | |||
US3266973A (en) * | 1963-07-25 | 1966-08-16 | Richard P Crowley | Method of preparing adsorbent filter paper containing crystalline zeolite particles, and paper thereof |
US3250280A (en) * | 1964-03-03 | 1966-05-10 | Hu Yow-Jiun | Smoking apparatus |
US3140253A (en) * | 1964-05-01 | 1964-07-07 | Socony Mobil Oil Co Inc | Catalytic hydrocarbon conversion with a crystalline zeolite composite catalyst |
US3292636A (en) * | 1964-05-04 | 1966-12-20 | Union Carbide Corp | Smoking tobacco preparation |
US3355317A (en) * | 1966-03-18 | 1967-11-28 | Liggett & Myers Tobacco Co | Process of impregnating adsorbent materials with metal oxides |
US3395096A (en) * | 1966-06-07 | 1968-07-30 | Exxon Research Engineering Co | Selective conversion process |
GB1181794A (en) | 1966-06-09 | 1970-02-18 | Atomic Energy Authority Uk | Improvements in or relating to Zirconium Compounds |
US3860529A (en) * | 1968-01-24 | 1975-01-14 | Union Carbide Corp | Stabilized tetragonal zirconia fibers and textiles |
US3502087A (en) * | 1968-07-05 | 1970-03-24 | Ernest J Romano | Cigarette filter |
FR1583284A (en) | 1968-07-23 | 1969-10-24 | ||
US3572348A (en) * | 1968-08-01 | 1971-03-23 | Liggett & Myers Inc | Tobacco composition |
US3547808A (en) | 1968-10-11 | 1970-12-15 | Union Oil Co | Conversion process and catalyst |
BE758092A (en) | 1969-10-27 | 1971-04-27 | Ici Ltd | FIBROUS MATERIALS OBTAINED FROM FIBRILLES |
GB1284673A (en) | 1970-04-20 | 1972-08-09 | British American Tobacco Co | Improvements relating to tobacco-smoke filters |
US3992498A (en) * | 1970-06-19 | 1976-11-16 | Imperial Chemical Industries Limited | Refractory fiber preparation with use of high humidity atmosphere |
US3703901A (en) * | 1971-03-11 | 1972-11-28 | Liggett & Myers Inc | Tobacco composition |
BE785737A (en) | 1971-07-05 | 1973-01-02 | Ici Ltd | METAL OXIDE FIBERS |
US3846827A (en) * | 1973-02-12 | 1974-11-05 | Cambridge Res & Dev Group | Speech compressor-expander with signal sample zero reset |
BE791758A (en) * | 1971-11-24 | 1973-05-22 | Olin Corp | CARBON-CHARGED ENVELOPE FOR SMOKING ARTICLE AND SMOKING ARTICLE WITH SUCH A ENVELOPE |
GB1435504A (en) | 1972-02-17 | 1976-05-12 | Wald N | Cigarette filter |
US4125591A (en) * | 1972-03-15 | 1978-11-14 | American Cyanamid Company | Process for producing rare earth exchanged crystalline aluminosilicate |
US3918916A (en) | 1972-04-21 | 1975-11-11 | Donald E Garrett | Plural chamber serial flow forced air cooled crystallizer |
US3827444A (en) | 1972-06-30 | 1974-08-06 | Y Khan | Combined cigarette holder and ash receptacle |
GB1445975A (en) * | 1972-08-30 | 1976-08-11 | Ici Ltd | Friction material |
US3991773A (en) * | 1973-01-16 | 1976-11-16 | Walker Eric E | Optional dry or liquid filter |
US3866954A (en) * | 1973-06-18 | 1975-02-18 | Bowen Tools Inc | Joint locking device |
US4044778A (en) * | 1973-09-10 | 1977-08-30 | Cohn Charles C | Cigarettes |
US3886954A (en) | 1974-03-13 | 1975-06-03 | Johannes Hermanus Hannema | Fire safety cigarette |
US3916916A (en) | 1974-11-07 | 1975-11-04 | Guy Bramucci | Shield for cigarettes and cigars |
GB1524211A (en) * | 1975-01-09 | 1978-09-06 | British American Tobacco Co | Smoking articles |
US4126141A (en) * | 1975-03-26 | 1978-11-21 | Montclair Research Corporation | Filter and cigarette including a filter |
US4181532A (en) * | 1975-10-22 | 1980-01-01 | United Kingdom Atomic Energy Authority | Production of colloidal dispersions |
US4108151A (en) | 1975-12-10 | 1978-08-22 | Olin Corporation | Gamma alumina filled paper wrapper for smoking articles |
DE2740011A1 (en) | 1977-09-06 | 1979-03-08 | Bat Cigarettenfab Gmbh | METHOD FOR REMOVING NITROGEN MONOXIDE AND CARBON MONOXIDE FROM TOBACCO SMOKE AND TOBACCO MATERIAL, SMOKE FILTER AND CIGARETTE PAPER FOR ITS IMPLEMENTATION |
DE2857146T1 (en) * | 1977-11-01 | 1980-12-04 | Atomic Energy Authority Uk | PRODUCTION OF DISPERSIONS |
HU176461B (en) * | 1978-06-26 | 1981-03-28 | Almasfuezitoei Timfoeldgyqr | Method for producing aluminium oxide which suitable for layer chromatography purposes |
US5072743A (en) | 1978-07-17 | 1991-12-17 | Perrine Charles P | Barrierized cigarette |
US4637990A (en) * | 1978-08-28 | 1987-01-20 | Torobin Leonard B | Hollow porous microspheres as substrates and containers for catalysts and method of making same |
US4231377A (en) | 1978-08-30 | 1980-11-04 | Olin Corporation | Wrapper for smoking articles containing magnesium oxide |
US4793980A (en) | 1978-09-21 | 1988-12-27 | Torobin Leonard B | Hollow porous microspheres as substrates and containers for catalyst |
US4248251A (en) | 1979-02-21 | 1981-02-03 | Liggett Group Inc. | Tobacco composition |
US4225636A (en) | 1979-03-08 | 1980-09-30 | Olin Corporation | High porosity carbon coated cigarette papers |
GB2059933B (en) | 1979-10-12 | 1983-04-07 | Ici Ltd | Preparation of metal oxide fibres |
US4356106A (en) * | 1980-05-09 | 1982-10-26 | United Kingdom Atomic Energy Authority | Cerium compounds |
US5213779A (en) * | 1980-07-31 | 1993-05-25 | Gas Desulfurization Corporation | Process for optimizing the removal of NOX and SOX from gases utilizing lanthanide compounds |
GB2094130B (en) | 1981-03-06 | 1984-12-12 | British American Tobacco Co | Wrapper material for smoking articles |
US4452259A (en) | 1981-07-10 | 1984-06-05 | Loews Theatres, Inc. | Smoking articles having a reduced free burn time |
US4457833A (en) * | 1981-08-27 | 1984-07-03 | Ashland Oil, Inc. | Process and catalyst for the conversion of carbo-metallic containing oils |
US4440868A (en) * | 1981-12-07 | 1984-04-03 | Ashland Oil, Inc. | Carbo-metallic oil conversion catalysts |
US4461311B1 (en) | 1981-12-24 | 1991-07-02 | Method and smoking article wrapper for reducing sidestream smoke | |
US4561454A (en) | 1982-01-15 | 1985-12-31 | R. J. Reynolds Tobacco | Smoking article having reduced sidestream smoke |
US4450847A (en) | 1982-04-07 | 1984-05-29 | Olin Corporation | Wrapper for smoking articles and method |
US4420002A (en) | 1982-04-07 | 1983-12-13 | Olin Corp. | Wrapper for smoking articles and method |
ZA837689B (en) | 1982-10-18 | 1984-06-27 | Universal Matthey Prod | Oxidation catalysts |
FR2539887B1 (en) * | 1983-01-20 | 1985-07-26 | Tech Europ Commutation | PROCESS FOR ENSURING THE SECURITY OF THE OPERATION OF A PROGRAMMABLE AUTOMATON AND AUTOMATON FOR THE IMPLEMENTATION OF THE PROCESS |
JPS61501546A (en) | 1983-01-24 | 1986-07-31 | コ−ン,チャ−ルズ・シ− | How to process cigarette paper |
US4499318A (en) * | 1983-04-22 | 1985-02-12 | Exxon Research & Engineering Co. | Modified zeolite catalyst composition and process for alkylating toluene with methanol to form styrene |
US4483937A (en) * | 1983-04-22 | 1984-11-20 | Exxon Research & Engineering Co. | Modified zeolite catalyst composition for alkylating toluene with methanol to form styrene |
GB8313604D0 (en) | 1983-05-17 | 1983-06-22 | British American Tobacco Co | Cigarette |
US4585014A (en) * | 1983-08-01 | 1986-04-29 | Fry Arnold H | Fire inhibiting tubular safety shield for a cigarette type smoking device and combination thereof |
US4615345A (en) * | 1983-08-08 | 1986-10-07 | Kimberly-Clark Corporation | Wrapper constructions for self-extinguishing smoking articles |
US4622983A (en) * | 1983-08-08 | 1986-11-18 | Kimberly-Clark Corporation | Reduced ignition proclivity smoking article wrapper and smoking article |
US4638819A (en) | 1984-03-30 | 1987-01-27 | Dynic Corporation | Device for decreasing side stream smoke of tobacco products |
US4637992A (en) * | 1984-12-17 | 1987-01-20 | Shell Oil Company | Intercalated clay compositions |
FR2578241B1 (en) * | 1985-03-01 | 1990-03-30 | Rhone Poulenc Spec Chim | STABILIZED ZIRCONIA, ITS PREPARATION PROCESS AND ITS APPLICATION IN CERAMIC COMPOSITIONS |
DE3508127A1 (en) | 1985-03-07 | 1986-09-11 | Gerhard 6078 Neu-Isenburg Kimmel | Smoker's article with a paper wrapper |
GB8513233D0 (en) | 1985-05-24 | 1985-06-26 | British American Tobacco Co | Cigarettes |
US4938238A (en) * | 1985-08-26 | 1990-07-03 | R. J. Reynolds Tobacco Company | Smoking article with improved wrapper |
US4685477A (en) | 1985-12-18 | 1987-08-11 | Valdez Loredana G | Cigar or cigarette holder |
US4796980A (en) * | 1986-04-02 | 1989-01-10 | Canon Kabushiki Kaisha | Ferroelectric liquid crystal optical modulation device with regions within pixels to initiate nucleation and inversion |
US4805644A (en) * | 1986-06-30 | 1989-02-21 | Kimberly-Clark Corporation | Sidestream reducing cigarette paper |
WO1988001478A1 (en) * | 1986-08-27 | 1988-03-10 | Gallaher Limited | Smoking rod wrapper and compositions for their production |
US4739775A (en) * | 1986-09-26 | 1988-04-26 | Kimberly-Clark Corporation | Wrapper constructions for self-extinguishing and reduced ignition proclivity smoking articles |
US4977126A (en) * | 1987-05-07 | 1990-12-11 | Exxon Research And Engineering Company | Process for the preparation of surface impregnated dispersed cobalt metal catalysts |
US5008090A (en) * | 1987-06-15 | 1991-04-16 | Allied-Signal Inc. | Catalytic process for minimizing the H2 S emissions from automotive exhaust |
US5112781A (en) * | 1987-06-19 | 1992-05-12 | Manville Corporation | Process for producing zirconium based granules and zirconium oxide fibers |
US4927622A (en) * | 1987-06-19 | 1990-05-22 | Manville Corporation | Process for producing zirconium based granules |
US5053214A (en) * | 1987-06-19 | 1991-10-01 | Manville Corporation | Process for producing zirconium based granules |
US4871709A (en) * | 1987-07-14 | 1989-10-03 | Nikki-Universal Co., Ltd. | Ozone cracking catalyst |
AU602834B2 (en) | 1987-09-03 | 1990-10-25 | British-American Tobacco Company Limited | Smoking articles |
FR2621576B1 (en) | 1987-10-09 | 1990-01-05 | Rhone Poulenc Chimie | COLLOIDAL DISPERSION OF A CERIUM IV COMPOUND IN AN AQUEOUS MEDIUM AND ITS PREPARATION METHOD |
US5074990A (en) * | 1987-10-30 | 1991-12-24 | Exxon Research And Engineering Company | Fluid catalytic cracking using catalysts containing an alumina-on-silica component |
US5070053A (en) * | 1987-10-30 | 1991-12-03 | Exxon Research And Engineering Company | FCC catalyst composition and method of making same |
US5077253A (en) * | 1987-12-28 | 1991-12-31 | Mobil Oil Corporation | Layered cracking catalyst and method of manufacture and use thereof |
DE3802645A1 (en) * | 1988-01-29 | 1989-08-10 | Reemtsma H F & Ph | QUICK OR SELF-EXTINGUISHING CIGARETTE |
US4915118A (en) | 1988-04-20 | 1990-04-10 | P. H. Glatfelter Company | Smoking article wrapper and method of making same |
US5137034A (en) | 1988-05-16 | 1992-08-11 | R. J. Reynolds Tobacco Company | Smoking article with improved means for delivering flavorants |
US5271419A (en) | 1989-09-29 | 1993-12-21 | R. J. Reynolds Tobacco Company | Cigarette |
US4852590A (en) * | 1988-07-07 | 1989-08-01 | Robert Ferka | Insertable cigarette smoke baffle for holders |
US5159940A (en) | 1988-07-22 | 1992-11-03 | Philip Morris Incorporated | Smoking article |
US4900712A (en) * | 1988-09-30 | 1990-02-13 | Prototech Company | Catalytic washcoat and method of preparation of the same |
US5040551A (en) | 1988-11-01 | 1991-08-20 | Catalytica, Inc. | Optimizing the oxidation of carbon monoxide |
US4937212A (en) | 1988-12-19 | 1990-06-26 | Minnesota Mining And Manufacturing Company | Zirconium oxide fibers and process for their preparation |
US4998542A (en) | 1989-02-23 | 1991-03-12 | Philip Morris Incorporated | Wrapper for smoking articles and method for preparing same |
JPH02273169A (en) * | 1989-04-14 | 1990-11-07 | Mitsui Petrochem Ind Ltd | Filter material for tobacco |
JPH07123069B2 (en) * | 1989-05-18 | 1995-12-25 | 松下電器産業株式会社 | Heating element |
US5709228A (en) | 1989-06-02 | 1998-01-20 | Rothmans, Benson & Hedges, Inc. | Cigarette with decreased sidestream smoke |
JP3285857B2 (en) * | 1989-07-06 | 2002-05-27 | マツダ株式会社 | Exhaust gas purification catalyst |
FR2651150B1 (en) * | 1989-08-30 | 1994-01-14 | Onera | ELEMENT FOR THE FILTRATION AND / OR PURIFICATION OF HOT GASES, AND ITS MANUFACTURING METHOD. |
DE3932935A1 (en) | 1989-10-03 | 1991-04-11 | Zumtobel Ag | LIGHT GRID |
JP2863567B2 (en) | 1989-10-03 | 1999-03-03 | 株式会社リケン | Exhaust gas purifying material and exhaust gas purifying method |
US5152304A (en) * | 1989-10-31 | 1992-10-06 | Philip Morris Incorporated | Wrapper for a smoking article |
US5094222A (en) * | 1989-11-17 | 1992-03-10 | Matsushita Electric Industrial Co., Ltd. | Catalytic composite and a cooker having the same |
US5232889A (en) * | 1989-11-27 | 1993-08-03 | Rhone-Poulenc Chimie | Supported catalysts |
DE3942236A1 (en) * | 1989-12-21 | 1991-06-27 | Bosch Siemens Hausgeraete | CATALYTIC COATING AGENT, METHOD FOR THE PRODUCTION THEREOF AND COOKING, BAKING, FRYING OR GRILLING EQUIPMENT OR PARTS AVAILABLE WITH THE COATING AGENT |
DK0435412T3 (en) | 1989-12-28 | 1996-04-15 | Mitsubishi Heavy Ind Ltd | Denitration catalyst for high temperature flue gas |
US5013352A (en) | 1990-03-30 | 1991-05-07 | Dowelanco | Substituted pyridyl-cyclohexanediones and their herbicidal uses |
US5109876A (en) | 1990-04-19 | 1992-05-05 | R. J. Reynolds Tobacco Company | Cigarette paper and cigarette incorporating same |
US5170807A (en) * | 1990-07-20 | 1992-12-15 | Kimberly Clark Corporation | Method of producing a non-burning outer wrapper for use with smoking products |
US5281445A (en) | 1990-07-30 | 1994-01-25 | Phillips Petroleum Company | Coating of components of sulfur absorbants |
US5105837A (en) * | 1990-08-28 | 1992-04-21 | R. J. Reynolds Tobacco Company | Smoking article with improved wrapper |
US5105838A (en) | 1990-10-23 | 1992-04-21 | R.J. Reynolds Tobacco Company | Cigarette |
US5191906A (en) * | 1990-10-30 | 1993-03-09 | Philip Morris Incorporated | Process for making wrappers for smoking articles which modify the burn rate of the smoking article |
EP0483998A1 (en) | 1990-10-30 | 1992-05-06 | Philip Morris Products Inc. | Wrapper making process for smoking articles |
ES2101723T3 (en) | 1990-11-16 | 1997-07-16 | Philip Morris Prod | PAPER THAT HAS VARIABLE WEIGHT CROSS REGIONS. |
CA2057962C (en) | 1991-01-05 | 1999-08-10 | Larry Bowen | Novel smoking product |
JPH0679965B2 (en) * | 1991-04-12 | 1994-10-12 | 株式会社コロイドリサーチ | Method for producing zirconia sol and method for producing zirconia molded body |
US5263999A (en) * | 1991-09-10 | 1993-11-23 | Philip Morris Incorporated | Smoking article wrapper for controlling burn rate and method for making same |
GB9120060D0 (en) * | 1991-09-19 | 1991-11-06 | Rothmans Int Tobacco | A rod of smoking material and cigarettes made therefrom |
US5200382A (en) * | 1991-11-15 | 1993-04-06 | Exxon Research And Engineering Company | Catalyst comprising thin shell of catalytically active material bonded onto an inert core |
US5176899A (en) * | 1991-11-25 | 1993-01-05 | Montgomery Robert E | Antimicrobial dentifrice |
US5220930A (en) | 1992-02-26 | 1993-06-22 | R. J. Reynolds Tobacco Company | Cigarette with wrapper having additive package |
DE69231165T2 (en) * | 1992-04-10 | 2000-11-16 | Ti Corporate Services Ltd., London | Sealing head for a device for expanding a pipe |
US5431887A (en) | 1992-05-19 | 1995-07-11 | Prototech Company | Flame arresting and contaminant-adsorbing filter apparatus and method in the catalytic abatement of broiler emissions |
JP3712240B2 (en) | 1993-03-29 | 2005-11-02 | エンゲルハード・コーポレーシヨン | Improved zeolite-containing oxidation catalyst and method of use |
US20020044901A1 (en) | 1993-04-19 | 2002-04-18 | William G. Wilson | Desulfurization of gases with cerium oxide microdomains |
EP0624393B1 (en) | 1993-05-10 | 2001-08-16 | Sakai Chemical Industry Co., Ltd., | Catalyst for catalytic reduction of nitrogen oxides |
US5965481A (en) * | 1993-05-14 | 1999-10-12 | Institut Francais Du Petrole | Process for preparing a catalyst suitable for the treatment of exhaust gases from internal combustion engines |
US5386838A (en) | 1993-07-09 | 1995-02-07 | Kimberly-Clark Corporation | High surface area iron-magnesium smoke suppressive compositions |
US5468548A (en) | 1993-08-02 | 1995-11-21 | United Technologies Corporation | Directionally solidified eutectic reinforcing fibers and fiber reinforced composites containing the fibers |
JP3447384B2 (en) | 1993-09-29 | 2003-09-16 | 本田技研工業株式会社 | Exhaust gas purification catalyst |
GB9325536D0 (en) | 1993-12-14 | 1994-02-16 | Rothmans International Ltd | Smoking article and filter therefor |
US5592955A (en) | 1994-02-07 | 1997-01-14 | Philip Morris Incorporated | Cigarette with insulating shell and method for making same |
US5820998A (en) | 1994-03-08 | 1998-10-13 | Schweitzer-Mauduit International, Inc. | Coated paper and process for making the same |
FR2720295B1 (en) | 1994-05-27 | 1996-07-12 | Rhone Poulenc Chimie | Dispersible compound based on a rare earth, colloidal suspension obtained from this compound, their methods of preparation and use in the manufacture of catalysts. |
AU685641B2 (en) | 1994-06-10 | 1998-01-22 | Rothmans International Services Limited | Smoking article |
JPH0857306A (en) * | 1994-08-24 | 1996-03-05 | Kuraray Chem Corp | Isothiocyanic ester deodorant and deodrizing device |
GB9501146D0 (en) | 1995-01-20 | 1995-03-08 | Rothmans Benson & Hedges | A device for controlling free-burn rate of a cigarette |
PT740907E (en) * | 1995-05-03 | 2002-05-31 | British American Tobacco Co | SMOKING PRODUCT |
JP2883298B2 (en) | 1995-08-09 | 1999-04-19 | 三島製紙株式会社 | Water dispersible sheet for tobacco and tobacco using the same |
JP2947735B2 (en) | 1995-08-09 | 1999-09-13 | 三島製紙株式会社 | Water dispersible sheet and tobacco using the same |
WO1997027831A1 (en) | 1996-02-01 | 1997-08-07 | Zeolitics Inc. | Methods for adsorbing nonpolar and weakly polar molecules |
US6040265A (en) | 1996-02-21 | 2000-03-21 | Asec Manufacturing General Partnership | Methods of making highly dispersed substantially uniform cerium and zirconium mixed-metal-oxide composite supports for exhaust conversion catalysts |
DE19614540A1 (en) | 1996-04-12 | 1997-10-16 | Degussa | Diesel catalyst |
FR2748740B1 (en) | 1996-05-15 | 1998-08-21 | Rhone Poulenc Chimie | COMPOSITION BASED ON CERIUM OXIDE AND ZIRCONIUM OXIDE WITH HIGH SPECIFIC SURFACE AND HIGH OXYGEN STORAGE CAPACITY, METHOD OF PREPARATION AND USE IN CATALYSIS |
NO302559B1 (en) * | 1996-06-27 | 1998-03-23 | Norsk Leca As | Preparation of inorganic cation exchanger from expanded clay beads and use of the prepared cation exchangers |
JPH10121333A (en) | 1996-06-28 | 1998-05-12 | Minolta Co Ltd | Production of fiber |
US5935889A (en) | 1996-10-04 | 1999-08-10 | Abb Lummus Global Inc. | Catalyst and method of preparation |
US5759663A (en) | 1996-10-31 | 1998-06-02 | Thorpe Products Company | Hard-faced insulating refractory fiber linings |
FR2756819B1 (en) | 1996-12-06 | 1999-02-19 | Rhodia Chimie Sa | COMPOSITION BASED ON CERIUM OXIDE OR CERIUM OXIDES AND ZIRCONIUM, IN EXTRUDED FORM, PROCESS FOR PREPARING SAME AND USE AS CATALYST |
US5944025A (en) | 1996-12-30 | 1999-08-31 | Brown & Williamson Tobacco Company | Smokeless method and article utilizing catalytic heat source for controlling products of combustion |
US5878754A (en) | 1997-03-10 | 1999-03-09 | Schweitzer-Mauduit International, Inc. | Smoking article wrapper for controlling ignition proclivity of a smoking article |
US5878753A (en) | 1997-03-11 | 1999-03-09 | Schweitzer-Mauduit International, Inc. | Smoking article wrapper for controlling ignition proclivity of a smoking article without affecting smoking characteristics |
US5996589A (en) | 1998-03-03 | 1999-12-07 | Brown & Williamson Tobacco Corporation | Aerosol-delivery smoking article |
US6375995B1 (en) | 1998-04-21 | 2002-04-23 | Lawrence F. Glaser | Multi-density cereal product |
JP2000024516A (en) | 1998-07-10 | 2000-01-25 | Toyota Motor Corp | Catalyst for cleaning exhaust gas and its production |
CN1095350C (en) * | 1999-11-19 | 2002-12-04 | 长沙卷烟厂 | Flue-cured tobacco type cigarette with low smoke by-pass and method for reducing smoke by-pass of cigarette |
GB9928853D0 (en) | 1999-12-07 | 2000-02-02 | British American Tobacco Co | Improvements relating to smoking articles |
WO2001048318A1 (en) | 1999-12-27 | 2001-07-05 | Japan Tobacco Inc. | Wrapping paper for cigarette reduced in scattering property of ash therefrom |
ES2329546T3 (en) | 2000-03-23 | 2009-11-27 | Pmpi Llc | SYSTEM AND METHOD FOR ELECTRIC SMOKING. |
US6419998B1 (en) | 2000-06-19 | 2002-07-16 | Mcgrath Thomas | Method for deposition of metal catalysts on inert supports |
DK1329165T3 (en) | 2000-09-08 | 2006-03-06 | Japan Tobacco Inc | Method and apparatus for making small flame spread cigarettes |
BR0114463B1 (en) | 2000-09-18 | 2012-05-29 | cigarette with low smoke side-flow, cigarette and cigarette treatment paper. | |
EP2127545B1 (en) | 2000-11-13 | 2012-06-27 | Schweitzer-Mauduit International | Paper wrapper and smoking article with reduced ignition proclivity characteristics |
US6536442B2 (en) | 2000-12-11 | 2003-03-25 | Brown & Williamson Tobacco Corporation | Lighter integral with a smoking article |
PT1352573E (en) | 2001-01-15 | 2012-01-24 | Japan Tobacco Inc | Low fire spreading cigarette |
FR2819477B1 (en) | 2001-01-18 | 2003-05-23 | Renault | MOTOR VEHICLE TAILGATE, AND METHOD FOR MOUNTING THE TAILGATE |
US20020179105A1 (en) | 2001-02-26 | 2002-12-05 | Zawadzki Michael A. | Reduced ignition propensity smoking article |
US20020179106A1 (en) | 2001-03-28 | 2002-12-05 | Zawadzki Michael A. | Reduced ignition propensity smoking article with a polysaccharide treated wrapper |
US20050022829A1 (en) | 2001-05-11 | 2005-02-03 | Atwell Charles G. | Cigarette paper with selected attenuator bands |
US6854469B1 (en) | 2001-06-27 | 2005-02-15 | Lloyd Harmon Hancock | Method for producing a reduced ignition propensity smoking article |
US20040238136A1 (en) | 2003-05-16 | 2004-12-02 | Pankaj Patel | Materials and methods for manufacturing cigarettes |
US20040025895A1 (en) | 2001-08-31 | 2004-02-12 | Ping Li | Oxidant/catalyst nanoparticles to reduce tobacco smoke constituents such as carbon monoxide |
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 |
CA2458674A1 (en) | 2001-09-13 | 2003-03-20 | Rothmans, Benson & Hedges Inc. | Zirconium/metal oxide fibres |
EP1423196B1 (en) * | 2001-09-14 | 2006-07-12 | Rothmans, Benson & Hedges Inc. | A process for making rare earth metal oxide-coated microporous materials |
JP2003129399A (en) | 2001-10-26 | 2003-05-08 | Oji Paper Co Ltd | Cigarette paper |
US6817365B2 (en) | 2001-11-15 | 2004-11-16 | Philip Morris Usa Inc. | Cigarette paper having heat-degradable filler particles, and cigarette comprising a cigarette paper wrapper having heat-degradable filler particles |
JP2003189840A (en) | 2001-12-27 | 2003-07-08 | Japan Tobacco Inc | Smoking article with reduced volume of tobacco sidestream |
US6779530B2 (en) | 2002-01-23 | 2004-08-24 | Schweitzer-Mauduit International, Inc. | Smoking articles with reduced ignition proclivity characteristics |
NZ552999A (en) * | 2002-03-15 | 2008-06-30 | Rothmans Benson & Hedges | Low sidestream smoke cigarette with combustible paper having modified ash characteristics |
DE60220016T2 (en) | 2002-03-20 | 2008-01-10 | Société des Produits Nestlé S.A. | Cocoa extract with low fat content |
JP2003299474A (en) | 2002-04-10 | 2003-10-21 | Akio Komuro | Lighter rotation ignition case of cigarette/lighter integrated type |
EA005980B1 (en) | 2002-04-12 | 2005-08-25 | Филип Моррис Продактс С.А. | Partially reduced nanoparticle additives for reducing the amount of carbon monoxide and/or nitric oxide present in mainstream smoke |
KR20040104593A (en) * | 2002-04-22 | 2004-12-10 | 로스맨즈 벤손 엔드 헤지스 인코퍼레이티드 | A low ignition propensity cigarette having oxygen donor metal oxide in the cigarette wrapper |
US20040261805A1 (en) | 2002-04-30 | 2004-12-30 | Brown & Williamson Tobacco Corporation | Smoking article |
US20040134631A1 (en) | 2003-01-15 | 2004-07-15 | Crooks Evon Llewellyn | Smoking article wrapping materials comprising ultrafine particles |
CA2538645A1 (en) * | 2003-09-15 | 2005-03-24 | Rothmans, Benson & Hedges Inc. | Treatment of mainstream smoke constituents by use of oxygen storage and donor metal oxide oxidation catalyst |
-
2001
- 2001-09-18 BR BRPI0114463-4A patent/BR0114463B1/en not_active IP Right Cessation
- 2001-09-18 US US09/954,437 patent/US6810884B2/en not_active Expired - Fee Related
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- 2001-09-18 DE DE60140556T patent/DE60140556D1/en not_active Expired - Lifetime
- 2001-09-18 JP JP2002528050A patent/JP4890729B2/en not_active Expired - Fee Related
- 2001-09-18 WO PCT/CA2001/001323 patent/WO2002024005A2/en active IP Right Grant
- 2001-09-18 CA CA002421192A patent/CA2421192A1/en not_active Abandoned
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- 2001-09-18 AU AU9156701A patent/AU9156701A/en active Pending
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-
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-
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- 2003-03-14 NO NO20031187A patent/NO20031187L/en not_active Application Discontinuation
- 2003-03-14 NO NO20031186A patent/NO20031186L/en unknown
-
2004
- 2004-03-12 US US10/798,366 patent/US7717120B2/en not_active Expired - Fee Related
- 2004-06-15 US US10/866,719 patent/US6904918B2/en not_active Expired - Fee Related
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- 2004-07-23 HK HK04105473.1A patent/HK1062519A1/en not_active IP Right Cessation
-
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- 2005-03-31 US US11/094,299 patent/US20050166936A1/en not_active Abandoned
-
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- 2006-09-19 AU AU2006220389A patent/AU2006220389B2/en not_active Ceased
-
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- 2010-04-13 US US12/759,528 patent/US8267096B2/en not_active Expired - Fee Related
-
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- 2012-08-24 US US13/594,205 patent/US8678016B2/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4433697A (en) * | 1982-04-07 | 1984-02-28 | Olin Corporation | Wrapper for smoking articles and method |
US4915117A (en) * | 1987-08-05 | 1990-04-10 | Midori Ito | Cigarette |
WO1998016125A1 (en) * | 1996-10-15 | 1998-04-23 | Rothmans, Benson & Hedges, Inc. | Cigarette sidestream smoke and free-burn rate control device |
WO1999053778A2 (en) * | 1998-04-16 | 1999-10-28 | Rothmans, Benson & Hedges Inc. | Cigarette sidestream smoke treatment material |
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US7531477B2 (en) | 2001-09-14 | 2009-05-12 | Rothmans, Benson & Hedges Inc. | Process for making metal oxide-coated microporous materials |
US6908874B2 (en) | 2001-09-14 | 2005-06-21 | Rothmans, Benson & Hedges Inc. | Process for making metal oxide-coated microporous materials |
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US7165553B2 (en) | 2003-06-13 | 2007-01-23 | Philip Morris Usa Inc. | Nanoscale catalyst particles/aluminosilicate to reduce carbon monoxide in the mainstream smoke of a cigarette |
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