CN1662157A - Low ignition propensity cigarette having oxygen donor metal oxide in the cigarette wrapper - Google Patents
Low ignition propensity cigarette having oxygen donor metal oxide in the cigarette wrapper Download PDFInfo
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- CN1662157A CN1662157A CN038143674A CN03814367A CN1662157A CN 1662157 A CN1662157 A CN 1662157A CN 038143674 A CN038143674 A CN 038143674A CN 03814367 A CN03814367 A CN 03814367A CN 1662157 A CN1662157 A CN 1662157A
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- cigarette
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- metal oxide
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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
- A24D1/025—Cigars; Cigarettes with special covers the covers having material applied to defined areas, e.g. bands for reducing the ignition propensity
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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
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- Cigarettes, Filters, And Manufacturing Of Filters (AREA)
- Paper (AREA)
Abstract
The invention relates to a low ignition propensity cigarette having a self-extinguishing cigarette wrapper which is capable of self-extinguishing the cigarette. The cigarette wrapper comprises an oxygen storage and donor metal oxide to support and maintain free-burn of the self-extinguishing cigarette while retaining the low ignition propensity property of the self-extinguishing cigarette wrapper. The invention further relates to a low sidestream smoke cigarette having low ignition propensity properties. The wrapper has a composition which reduces sidestream smoke from a burning cigarette and comprises in combination, an oxygen storage and donor metal oxide catalyst and an essentially non-combustible finely divided porous particulate adjunct for the catalyst. The sidestream smoke reducing composition reduces porosity of the wrapper to render the cigarette as self-extinguishable. The oxygen storage and donor metal oxide catalyst is in an amount which supports free burn of the cigarette while retaining the self-extinguishing property of the cigarette wrapper.
Description
Invention field
The present invention relates to the to burn free burning rate control of cigarette more particularly, relates to the cigarette that has low ignition propensity and can extinguish automatically safely when putting down.
Background of invention
In order to develop the cigarette of low ignition propensity or self-extinguishment, people are carrying out many trials aspect the free burning rate of control cigarette.This category feature of low ignition propensity or self-extinguishment is considered to security feature.For example, the self-extinguishment of cigarette can reduce cigarette and drops on the chance that (as furniture surface etc.) catches fire on the combustible material.The most frequently used method is to add the free burning rate conditioning agent to influence free burning rate in conventional cigarette papers.Free burning rate can be decreased to such level: go up and the idle long period (as two minutes or more of a specified duration) if cigarette is dropped on the surface, cigarette is extinguished automatically.Canadian Patent 1,211,021 has described an example of this cigarette, and wrapping paper wherein has low porosity, comprises the material that one or more suppress free burning rate, and is substantially free of combustion improver.United States Patent (USP) 4,622,983 have described another example, and it is 1.5cm that low ignition propensity cigarettes wherein has the combustion model index
-1-5.0cm
-1Wrapping paper, and contain the combustion improver of alkali metal salt just like carboxylic acid etc.
Perhaps, the material that reduces free burning rate can be used as the band on the cigarette paper, if burning enters the belt-like zone of the material that reduces free burning rate, this band will provide low ignition propensity.United States Patent (USP) 5,474,095,5,417,228,5,263,999,4,739,775,4,452,259 and 4,044,778 and U.S. Patent application 2002/0179105 example of this type systematic has been described.
More particularly, U.S. Patent application 2002/0179105 has been described a kind of cigarette with low ignition propensity of basic wrapping paper, contains a undressed zone and at least one warp in its basic wrapping paper and can control the distinct area that the compositions-treated of free burning rate is crossed.Described composition comprises material (as ammonium phosphate salt) that reduces infiltrative material (as starch and cellulose), suppresses free burning rate and the material (as the alkali metal or the alkali salt of carboxylic acid) of accelerating free burning rate.
European patent application 559,300 has been described a kind of wrapping paper that is used for conventional cigarette or aerosol cigarette.Can on the wrapping paper of conventional cigarette, apply a gel band as the selection metal oxide of the material that suppresses free burning rate.
United States Patent (USP) 4,739,775 have described a kind of cigarette uses wrapping paper.Described wrapping paper comprises that standard burning cellulose fibre basis fabric and one or more combustion model index are 0cm
-1-4.0cm
-1Cellulose fibre basis fabric, wherein cigarette is self-extinguishment in this belt-like zone.
United States Patent (USP) 5,474,095,5,417,228 and 5,263,999 have described zone with cellulose-containing material cigarette with the low ignition propensity of the wrapping paper of the free burning rate that reduces cigarette.
, United States Patent (USP) 4,615,345 have described a kind of self-extinguishing property cigarette of being made by cellulose fibre basis fabric that has, and it provides low ignition propensity, and described wrapping paper also comprises the zone of combustion improver.This material is an alkali metal burn promoter, as the sylvite of citric acid.
United States Patent (USP) 2,666,437 and 4,638,819 have described other selectable method, and ring or the analog that provides to place on the cigarette is provided these methods, and when the carbon of free combustion encircles near this, cigarette will be extinguished automatically.Another common mechanism of extinguishing cigarette provides a tube, and cigarette is inserted the carbon that this tube comes automatic extinguish combustion.United States Patent (USP) 1,581,451 have described this device.
In addition, United States Patent (USP) 4,945,932 described include on a kind of wrapping paper lower and than the area of the pattern of highly-breathable self-extinguishment cigarette.
These systems of great majority have the common trait that reduces free burning rate with the free burning rate conditioning agent, and the free burning rate conditioning agent is consumed in the burning of cigarette.The consumption meeting of free burning rate conditioning agent produces adverse influence to various features such as sidestream smoke, fragrance, taste and the ash content feature of cigarette.
Summary of the invention
An aspect of of the present present invention is a kind of low ignition propensity cigarettes with the self-extinguishment cigarette paper that can extinguish cigarette automatically, use oxygen to store and donor metal oxide in the cigarette paper of described cigarette, when keeping the low ignition propensity of self-extinguishment cigarette paper, support and keep the free combustion of self-extinguishment cigarette.
Another aspect of the present invention is a kind of low ignition propensity cigarettes, and described cigarette comprises:
Tobacco rod and
The wrapping paper that surrounds tobacco rod and have base permeability, described wrapping paper comprises:
Undressed zone and
At least one, is placed on described cigarette on one surface with box lunch to reduce the distinct area of its base permeability through compositions-treated, and when its coal was burnt forward along described treated zone, described cigarette was extinguished automatically,
Improvements comprise:
Have oxygen store with the composition of supply oxidized metal oxide in coal when burn forward in treated zone, support and keep the burning of coal.
Another aspect of the present invention is a kind of low ignition propensity cigarettes with band, the tobacco rod of the cigarette paper of having reeled described cigarette comprising, and described cigarette paper has at least one around the band on it.Described band is formed by free burning rate control combination thing, to obtain low ignition propensity cigarettes.Described composition comprises the reagent and the oxygen that reduce porosity and stores and donor metal oxide.
Another aspect of the present invention is a kind of low ignition propensity cigarettes, the tobacco rod of the cigarette paper of having reeled described cigarette comprising.Described cigarette paper has the low porosity level of the tobacco rod of automatic extinguish combustion.Described cigarette paper has the endless belt of oxygen storage and donor metal oxide, to support to keep the free burning rate of tobacco rod along these regional free combustions.
Another aspect of the present invention is a kind of method that places a lip-deep cigarette of extinguishing, described method comprises that allowing burning cigarette carbon burn forward enters the band of cigarette paper, this band is reduced to free burning rate the level that can extinguish automatically when cigarette being kept described surface, this band comprises oxygen and stores and donor metal oxide, its amount is in the self-extinguishment that keeps cigarette paper, and support coal free combustion is forward passed through described band.
Another aspect of the present invention is a kind of low ignition propensity cigarettes that can extinguish automatically, use oxygen to store and donor metal oxide in the cigarette paper of described cigarette, with in the low ignition propensity that keeps self-extinguishment cigarette, support and keep the free combustion of self-extinguishment cigarette, having the tobacco rod of the tobacco density that can extinguish cigarette automatically described cigarette comprising and having is used for supporting free burning rate to keep tobacco rod along the oxygen storage of described regional free combustion and the wrapping paper of the endless belt of donor metal oxide.
Another aspect of the present invention is a kind of cigarette with low sidestream smoke of low ignition propensity, and described cigarette comprises the wrapping paper around tobacco rod.Described wrapping paper contains a kind of composition, and described composition can reduce the sidestream smoke of burning cigarette, and comprises oxygen storage and donor metal oxide catalyst and non-flammable substantially finely divided porous particle catalyst promoter simultaneously.Reduce the porosity that the sidestream smoke composition has reduced wrapping paper, give going out property of cigarette self-extinguishing.Oxygen stores and the amount of donor metal oxide catalyst makes it possible to support the free combustion of cigarette in the self-extinguishment that keeps cigarette paper.
Another aspect of the present invention is a kind of low sidestream smoke cigarette with low ignition propensity, and described cigarette comprises the wrapping paper around tobacco rod.Described wrapping paper comprises a kind of composition, and described composition can reduce the sidestream smoke of burning cigarette, and comprises oxygen storage and donor metal oxide catalyst and non-flammable substantially finely divided porous particle catalyst promoter simultaneously.Reduce the porosity that the sidestream smoke composition has reduced wrapping paper, give going out property of cigarette self-extinguishing.The endless belt that described wrapping paper has oxygen storage and donor metal oxide catalyst can not extinguish along this zone free combustion automatically with support.
Another aspect of the present invention is the wrapping paper of the above-mentioned aspect of a kind of the present invention, and described wrapping paper is used to reduce sidestream smoke and/or gives cigarette self-extinguishing.
Another aspect of the present invention is a kind of self-gravitation cigarette with double casing of inside and outside wrapping paper.One deck in the inside and outside wrapping paper comprises that oxygen stores and donor metal oxide, in the low ignition propensity that keeps the self-extinguishment cigarette paper, and described metal oxide support and keep the free combustion of self-extinguishment cigarette.
Detailed description of the preferred embodiments
In the low ignition propensity cigarettes of most of types, there are two kinds of mechanism of competitions.From the angle of low ignition propensity, when cigarette is placed furniture cover jewelry, cloth, bed with linen or other surface of solids on the time, cigarette should almost be extinguished at once automatically.From smoker's angle, when normal the smoking, low ignition propensity cigarettes should not extinguished automatically.The normal smoking comprise and light a cigarette, smoke 6-10 time anywhere, unless place the surface of solids, otherwise cigarette keeps firing in suction at interval, and between suction the acceptable free combustion of maintenance.
According to the present invention, use oxygen store with donor metal oxide very well balance these two kinds of mechanism, obtain having the low ignition propensity cigarettes of acceptable free combustion or static combustion characteristics.Free combustion or static burning be meant when cigarette is left unused between smoker's finger, place the burning under the situations such as edge of ashtray.Different with the mode of the burning-rate accelerator of prior art, oxygen donor metal oxide support but do not accelerate the burning of cigarette.Oxygen of the present invention stores with donor metal oxide and is not consumed in reaction, and only variation has taken place the state of oxidation, discharge oxygen after, changed its state of oxidation, pick up oxygen from the external world then, become its original state again.Like this, the oxygen donor metal oxide is not consumed in reaction, therefore remains in the cigarette ash.Described oxygen stores the effect of playing oxygen source with donor metal oxide, when metal oxide changes the state of oxidation, controllably discharge oxygen and support the free combustion of cigarette and it in reaction, not to be consumed, but burning-rate accelerator (as citrate) is consumed in reaction.Rely on the oxygen that discharges in oxygen storage and the donor metal oxide, more likely design low ignition propensity that when putting down, has more likely so that the self-extinguishment cigarette of extinguishing automatically.
By supporting and keep the desirable free combustion of self-extinguishment cigarette, oxygen stores with donor metal oxide and play very favorable effect in low ignition propensity cigarettes.The oxygen donor material provides oxygen to be used to support free combustion, so that the coal of cigarette burns away along cigarette.The burning that the oxygen donor material has overcome low porosity cigarette paper and/or high density tobacco rod suppresses active.Like this, not only can obtain self-extinguishment cigarette, and, also can design tobacco rod so that self-extinguishment cigarette to be provided as selecting by providing to give or control from the wrapping paper that puts out characteristic.For example, can produce the tobacco rod that comprises the high density part of extinguishing automatically after slower and idle a period of time of burning along its length.Can use the high density tobacco rod to slow down and extinguish automatically (as not containing the aerobic source of supply) cigarette on the whole length of tobacco rod or in the part of tobacco rod.Should be appreciated that and to be used in combination the cigarette that tobacco rod density and cigarette paper modifications obtain the low ignition propensity and the required free combustion characteristic of balance.In most of the cases, the acceptable free combustion of low ignition propensity cigarettes is that cigarette continuation was fired greater than 30 seconds to about 4 minutes time.When placing the surface to go up, the preferred free combustion time is usually greater than about 1.5 minutes, most preferably greater than about 2 minutes.Although suction in the average every 1-1.5 of smoker minute once, low ignition propensity cigarettes preferably can keep static burning or free combustion greater than about 2 minutes.
A preferred embodiment of the present invention provides a kind of cigarette paper, and described cigarette paper is by applying or mix therein a kind of preparation of compositions of very big its porosity of reduction thereon.Reducing of paper porosity is to be used to handle mainstream smoke or the required composition of sidestream smoke because of having added in paper, for example, adds high surface composition such as metal oxide etc.The paper of this low porosity almost extinguishes after lighting at once.According to an aspect of the present invention, adding in the paper is that a kind of oxygen gives body to support result of combustion of tobacco.The oxygen donor material is put on paper, it is spread all in the paper, obtain the burn rate of the scheduled time, reduced the temperature of coal like this and when cigarette places on the surface, obtained self-extinguishment.Perhaps, as United States Patent (USP) 4,615, described in 345, supply composition with oxygen and be applied to zone on the paper, obtain the ring zone along cigarette paper, near the free combustion cigarette paper self-extinguishment endless belt is supported in this zone.Based on conventional or traditional smoking technology, every cigarette is approximately aspirated 8-10 time, is about 15-25mm along the described zone of cigarette, and the length of described band is about 2-10mm.
The oxygen donor material can be mixed or infiltrates paper along the paper length direction, or is applied to paper with the method for the form of zone or band (for example by coating or permeate).If wrapping paper is a double casing paper, nexine or outer packaging paper can be handled with porosity reducing agents, to obtain self-extinguishment, use the oxygen donor material to support the free combustion of the desired scope of cigarette then in nexine or outer packaging paper.The preferred oxygen donor material is used in the outer packaging paper, makes the outside of itself and internal layer packaging paper adjacent.With treatment compositions application that the self-extinguishment band is provided or infiltration wrapping paper, can obviously not increase the thickness of wrapping paper.But should be appreciated that some treatment compositions can reduce the reagent of porosity, they will increase the thickness of paper, as United States Patent (USP) 5,740, and the situation of 095 cellulosic strip of describing.
According to an aspect of the present invention, provide the free burning rate control mechanism by the oxygen donor material (as cerium oxide) that in the cigarette paper of very smoulder, adds or comprise selected amount.Described oxygen supplies mass-energy is unusual to provide sufficiently oxygen to support the burning of desired degree effectively.If do not have the oxygen donor material or reduce its level, when being placed on furniture surface etc., because low ignition propensity cigarettes is extinguished automatically.When keeping the required low ignition propensity of self-extinguishment cigarette, use enough oxygen storage donor metal oxide with support with keep the required free combustion of self-extinguishment cigarette and reach balance between these mechanism of competitions.
According to a preferred embodiment of the invention, can on cigarette paper, use or mix therein adsorbent to realize that some is in required effect aspect processing mainstream smoke or the sidestream smoke.By sneaking into this class material, the porosity of paper can be near zero.Usually such paper is useless, but surprisingly, oxygen donor used according to the invention (as cerium oxide) is supplied with the paper burning that enough oxygen but can make this atresia.Can use the cerium oxide of scheduled volume (the heavy 10%-15% weight of for example about paper).The amount of cerium oxide is enough supported cigarette to burn before self-gravitation to reach about two minutes.Perhaps, the cerium oxide of higher concentration can be applied on the cigarette paper with area format, this zone is supplied with enough oxygen by the zone of cerium oxide and is improved free burning rate.In case coal enters and do not have oxygen to store with the zone of supply material or contain the zone of very a small amount of this material, the temperature of coal sharply reduces and extinguishes automatically, and the cigarette of low ignition propensity is provided thus.The about 20-125g/m of the basic weight that these paper are general
2Dry weight percentage with wrapping paper calculates, and oxygen stores and the amount of donor metal oxide can be about 5-60% weight.More preferably the heavy about 10-50% weight of paper most preferably is the heavy about 10-30% weight of paper.
Oxygen stores with donor metal oxide can bring into play other function, for example as oxidation catalyst.Use term " catalyst " to emphasize that described oxygen donor oxidation catalyst can change the state of oxidation to discharge oxygen molecule, still is not consumed at reacting middle catalyst.
The instantiation of oxygen donor material comprises that oxygen stores and the donor metal oxide oxidation catalyst, for example, and solid solution of transition metal oxide, rare-earth oxide, mixed-metal oxides and composition thereof.More particularly, described transition group comprises oxide of IVB, VB, VIB, VIIB, VIII, IB family metal and composition thereof.Preferred rare earth metal oxides is selected from oxide of scandium, yttrium, lanthanide series metal and composition thereof.Preferred lanthanide series metal comprises lanthanum, cerium, praseodymium, neodymium and composition thereof.Preferred lanthanide metal oxide is cerium oxide or its precursor ceria sol.
In addition, oxygen can also be the cerium oxide of high surface area material such as particle form or the hybrid solid solution of cerium oxide and other component (as the oxide of cerium/zirconium) to body.The oxide of zirconium can also use with particle form and oxygen donor material.Other granular materials that is fit to comprises cerium oxide, calcium carbonate of oxide, aluminium oxide, the low surface area of oxide, titanyl compound, the magnesium of tin and composition thereof.The hybrid solid solution of metal oxide comprises the arbitrary composition as cerium/lanthanum mixed oxide, cerium/Zr mixed oxide, cerium/aluminium-mixed oxide, cerium/magnesium mixed oxide, cerium/titanium mixed oxide, cerium/zirconium/lanthanum mixed oxide, cerium/lanthanum mixed oxide, cerium/Zr mixed oxide, cerium/zirconium/lanthanum mixed oxide, cerium/zirconium/praseodymium mixed oxide, cerium/zirconium/lanthanum/praseodymium mixed oxide, cerium/zirconium/neodymium mixed oxide.
Also can sneak into various fillers in the cigarette paper increases the validity that oxygen is given body, for example with the adsorbent of oxygen donor coupling, is used for reducing visible sidestream smoke.The auxiliary agent that is fit to of oxygen donor material comprises any suitable, non-flammable substantially finely divided granular materials, and described granular materials can not influence the fragrance and the taste of mainstream smoke, and can not emit any unacceptable smell in sidestream smoke.Described auxiliary agent can be a low surface area, usually greater than 5m
2/ g up to surface area greater than 20m
2The high surface porous adjunct of/g.The average diameter of the hole of porous adjunct is less than 100nm (1000 dust).More preferably, the average diameter of hole is less than 20nm (200 dust), and more preferably the average diameter of hole is 0.5-10nm (a 5-100 dust).For zeolite based materials, the average diameter of hole is about 0.5-1.3nm (a 5-13 dust).
The average grain diameter of particle auxiliary agent is more preferably less than about 20 μ m less than about 30 μ m, most preferably less than 1 μ m to about 5 μ m.Combustible material can not be various adobes commonly used during cigarette paper is made, as has the bentonite or the treated clay of high surface.Operable not flammable material with carbon element also comprises porous carbon fiber and the particle as grinding.Multiple metal oxide such as porous integral mineral based material (porous monolithic mineralbased materials) be can use, the oxide of zirconia, titanyl compound, cerium, the oxide of aluminium (as aluminium oxide), metal-oxide fiber (as the zirconium fiber) and other pottery (as the porous ceramic fiber that grinds) and composition thereof comprised.Found that cerium oxide can and can store and supply cerium oxide oxidation catalyst as oxygen as finely divided auxiliary agent.Other promoter material comprises high surface area material such as active carbon and zeolite.
Described auxiliary agent can also comprise the material of high surface, high adsorption, and described material is non-flammable inorganic finely divided particle, for example comprises the molecular sieve of zeolite and amorphous materials such as silica/alumina etc.Acceptable zeolite is a silicalite zeolite, faujasite, X, Y and L zeolite, beta-zeolite, modenite and ZSM zeolite.Preferred zeolite comprises hydrophobic zeolite and medium hydrophobic zeolite, and they have affinity to the hydrophobic and medium hydrophobic organic compound of sidestream smoke, avoid producing steam thus.Zeolitic material provides the high pore structure that optionally absorbs and adsorb the composition of sidestream smoke.Described high pore structure be generally comprised between the particle macropore with at the micropore of granule interior, these micropores are bifurcateds of macropore.
Described zeolitic material can be characterized by following formula:
M
mM′
nM″
p[aAlO
2·bSiO
2·cTO
2]
Wherein
M is a monovalent cation,
M ' is a bivalent cation,
M " be Tricationic,
A, b, c, n, m and p are the numerals of reactive chemistry metered proportions,
C, m, n or p also can be 0,
Al and Si be the Al of tetrahedral coordination and Si atom and
T is the metallic atom of the tetrahedral coordination of energy substitute for Al or Si, and the ratio of the b/a of its mesolite or zeolitic materials is about 5-300, and pore size is about 0.5-1.3nm (a 5-13 dust).
The preferred zeolite of following formula has following concrete chemical formula: faujasite ((Na
2, Ca, Mg)
29[Al
58Si
134O
384] 240H
2O; Cube), beta-zeolite (Na
n[Al
nSi
64-nO
128] n＜7; The four directions), modenite (Na
8[Al
8Si
40O
96] 24H
2O; Tiltedly square), ZSM zeolite (Na
n[Al
nSi
96-nO
192]～16H
2O n＜27; Tiltedly square) with its mixture.
Should be appreciated that and to use various other sorbing materials of level.For example especially true the gradient zeolite of high boiling substance, mid-boiling point material and low-boiling point material for can conventional design becoming selective absorption.This feasible zeolite compositions that can produce multilayer, wherein the cerium oxide of the present invention's consideration or other appropriate catalyst preferably are dispersed in these layers.Use adhesive and binding agent these layers to be bonded on the cigarette paper of tobacco rod then, described adhesive and binding agent can be as polyvinyl acetate, polyvinyl alcohol, carboxymethyl cellulose (CMC), starch and casein or soybean protein and composition thereof.
Auxiliary agent and filler can comprise the mineral based material and the not flammable active carbon of metal oxide, the slaine as ash conditioners, calcium carbonate, zeolite, mixed-metal oxides, bonding clay, inorganic bond, the fiber that grinds, integral body.Catalyst can be used as porosity reducing agents with adhesive and auxiliary agent.Can when producing the low porosity paper, these porosity reducing agents be mixed paper, perhaps they can be coated in the porosity that reduces paper on the conventional cigarette papers.Usually less than 10Coresta unit, and be low to moderate 0Coresta unit in some cases in most of low ignition propensity cigarettes mesopore rate.Also should be appreciated that the ash content that uses traditional additive such as ash conditioners to regulate cigarette.Conventional ash conditioners is carbonate such as calcium salt, the slaine of carboxylic acid and the ammonium salt of phosphoric acid.The example of carboxylate comprises the alkali metal and the alkaline-earth metal of acidity (acidic) acid, citric acid, maleic acid, lactic acid, tartaric acid etc.
The ammonium salt of the phosphoric acid that is fit to comprises the di-ammonium salts and the ammonium hydrogen phosphate of ammonium dihydrogen phosphate (ADP), diammonium hydrogen phosphate, diammonium orthophosphate, phosphoric acid.Simultaneously, the typical filler that is used for regulating ash content comprises unselected clay, calcium carbonate, titanium dioxide, zirconia, titanium dioxide, magnesia, aluminium oxide, cerium oxide, tin oxide, iron oxide, manganese oxide, calcium carbonate, zirconium carbonate, magnesium carbonate etc.
Auxiliary agent that adds and oxygen donor coupling are to realize that required characteristic as reducing sidestream smoke, can greatly reduce the porosity of cigarette paper.By selecting the consumption of oxygen donor material, the paper of low porosity still can burn.But from the angle of fire safety cigarette, the temperature that selected oxygen should be enough to reduce cigarette combustion carbon for the amount of body is to obtain low ignition propensity cigarettes.When cigarette was put down, behind preset time (being no more than 4 minutes usually), cigarette can be extinguished automatically.Allowing people to design the low porosity paper of enhancing cigarette characteristic and using oxygen storage and donor metal oxide aspect the free burning rate of keeping required reduction, this aspect of the present invention provides great improvement.
Oxygen donor material can add in the production process of paper, uses or infiltrates in the paper as the coating of paper.Perhaps, oxygen donor material can be applied on the paper with area format, as United States Patent (USP) 4,615, the zone of describing in 345 obtains the free burning rate zone of the routine adjacent with the slow free burning rate band of cigarette (this band make leave unused extinguish automatically when go up on a surface cigarette).Can use such as mix, apply, the whole bag of tricks such as infiltration or strip material is applied to described composition on the low porosity paper.The method of describing in the International Patent Application WO 02/024005 of pending trial in the time of available applicant applies, mixes or permeates, and the theme material of this patent application is combined in herein by reference.
Can be by using a plurality of horizontal moving nozzles that described oxygen donor is bondd with area format or being coated on the cigarette paper, described nozzle moves on cigarette paper, and it is manufactured the separated region that can apply the oxygen donor material on low porosity paper.When paper was cut open and reel, the zone line of screw type zone and low porosity paper converged a little, obtains the separated region that normal burn rate promotes composition.Provide the length in the zone of standard or conventional free burning rate to be typically about 15mm-25mm, most preferably about about 22mm of 20mm-.The band of smoulder material can be designed in order to extinguish cigarette automatically, if not suction, bandwidth is the about 10mm of about 2mm-, is preferably greater than 5mm.
Paper can be double-deck cigarette paper, wherein the internal layer of paper comprises the oxygen donor material so that low ignition propensity to be provided, the skin of paper is used for improving the ash content characteristic of low porosity internal layer paper, PCT patent application serial numbers PCT/CA03/00353 (submission on March 14th, 2003 as pending trial in the applicant, exercise question is " the low effluent cigarette with the combustible paper that improves ash content ") described in, its theme is combined in herein by reference.The possible structure of other double-deck cigarette paper is included in the internal layer wrapping paper a kind of sidestream smoke treatment compositions is provided, and described composition is given the low porosity of the automatic extinguish combustion tobacco rod of internal layer packaging paper.Though outer packaging paper can have the ash content regulating action, it also can provide oxygen store with the endless belt of donor metal oxide to support the required free burning rate of tobacco rod of keeping along regional free combustion.Perhaps, the zone of oxygen donor material can be in inner packing paper and the sidestream smoke treated substance together, be used to provide and keep required free burning rate.In another selection in zone, also be to be understood that and on the whole length direction of internal layer packaging paper, use enough oxygen donor material to keep required free burning rate.
According to an aspect of the present invention, correctly selective oxidation cerium and auxiliary agent can provide sidestream smoke control and fire safety cigarette.Can in base paper, provide a kind of oxygen supply to lack composition (oxygen donor starved composition) and control sidestream smoke.The zone (as describing in the above-mentioned International Patent Application WO 02/024005) of normal sidestream smoke control combination thing that comprises the oxygen donor material of recruitment can be used for supporting the conventional free burning rate of cigarette in these zones and area.If cigarette (in 2 minutes) within the predetermined time is not sucked, the mid portion that the oxygen supply lacks extinguishes cigarette automatically.Perhaps, can apply or use therein the sidestream smoke control composition on the base paper of low porosity, wherein oxygen is the level of a reduction to the amount of body, and assurance cigarette (in 2-4 minute) in putting down preset time is extinguished automatically.
The normally improved conventional cigarette paper of the wrapping paper of tobacco rod with base permeability, its permeability is low to moderate is enough to make the coal of cigarette to be burnt forward along tobacco rod, and is positioned on the surface of solids or is noted surpassing 2-3 minute or will extinguish automatically 4 minutes the time when cigarette.The base permeability of preferred packaging paper is usually less than 10Coresta unit, preferably less than 6Coresta unit, even near 0Coresta unit.In the band that can reduce to be scheduled to or along the porosity of the length direction of cigarette.As described, can in band, use various porosity reducing agents to reduce porosity to required level.As indicated above, porosity reducing agents can have other effect, but also can comprise the plain layer of additional fibers with the reduction that can put out certainly the is provided band of porosity on paper.Described cellulosic strip can comprise that oxygen stores and donor metal oxide, to provide this with required free combustion, so that should be with the burning preset time, but before fireball passes this band, if cigarette will be extinguished automatically by idle.The example of the cellulosic strip of the band that is used for reducing porosity has for example been described in above-mentioned United States Patent (USP) 5,740,095.The scheduled time is preferably greater than or equals about 2 minutes.
In order to be equilibrated at the amount of the oxygen donor material in the low porosity cigarette, the free burning rate of cigarette causes aspirating more frequently usually.The suction number of times of every conventional length of cigarette can surpass 10 times, and can be 12-16 time.According to the present invention, the advantage that people can utilize oxygen storage and donor metal oxide to combine with porosity reducing agents, the cigarette of a kind of obviously shorter tobacco rod of smoulder development (generally lacking 1/3 at least) of the shorter tobacco rod of dependence.Can reach 6-8 suction of required routine.In the produce and market of cigarette, use 1/3rd tobacco to equal to provide cost savings considerably less.Using oxygen to store aspect donor metal oxide, the release of controlling oxygen is a tangible advantage, has realized along the required free combustion of length direction of the tobacco shred that has shortened.
In order to obtain correct balance, determine that by test and error analysis oxygen stores and the amount of donor metal oxide (being preferably a kind of oxidation catalyst) usually.Many parameters can influence the porosity of wrapping paper material, and wherein each has different reactions for the use of body for oxygen.As mentioned above, self-extinguishing time can not be used for commercial cigarettes usually less than 30 seconds.Self-extinguishing time was not accepted by tobacco industry less than 2 minutes yet.The oxygen donor that preferred use is enough makes it surpass about 2 minutes to prolong self-extinguishing time.
The conventional cigarette imperfect combustion, and run out of just up to all combustible tobacco and to extinguish.But extinguish automatically in low ignition propensity cigarettes arbitrary thereon place after about 30 seconds to 4 minutes.The time before extinguishing automatically that it will be understood by those of skill in the art that depends in part on wrapper parameters at least.The porosity, band that these wrapper parameters comprise bandwidth, base fabric is apart from the length in, free combustion zone and the additive etc. that is used for improving ash content.By test and error analysis, can design the wrapping paper of the predetermined time of extinguishing automatically by the test method(s) of these parameters.
Though described the preferred embodiments of the invention here in detail, it will be understood by those of skill in the art that under the situation of the scope in not deviating from spirit of the present invention or additional claims, can make various variations.
Claims (74)
1. low ignition propensity cigarettes, described cigarette having can be extinguished the self-extinguishment cigarette paper of cigarette automatically, use oxygen to store and donor metal oxide in the cigarette paper of described cigarette, with in the low ignition propensity that keeps the self-extinguishment cigarette paper, support and keep the free combustion of described self-extinguishment cigarette.
2. the cigarette of claim 1, described cigarette comprises:
Tobacco rod and
The wrapping paper that surrounds tobacco rod and have base permeability, described wrapping paper comprises:
Undressed zone and
At least one, is placed on described cigarette on one surface with box lunch to reduce the distinct area of its base permeability through compositions-treated, and when its coal was burnt forward along described treated zone, described cigarette was extinguished automatically,
Improvements comprise:
Have described oxygen store with the described composition of supply oxidized metal oxide in coal when burn forward in described treated zone, support and keep the burning of coal.
3. the cigarette of claim 2, wherein said at least one distinct area is at least one around the band on the described wrapping paper, described band is formed by free burning rate control combination thing, to obtain low ignition propensity cigarettes, described composition comprises porosity and reduces reagent and storage of described oxygen and donor metal oxide.
4. the cigarette of claim 1, described cigarette comprises the tobacco rod of being reeled by described cigarette paper, described cigarette paper has the low porosity level of the tobacco rod of automatic extinguish combustion, described cigarette paper has the ring zone of described oxygen storage and donor metal oxide, to support to keep the free burning rate of described tobacco rod along described regional free combustion.
5. method of extinguishing the cigarette that places a lip-deep claim 3, described method comprises allows burning cigarette carbon burn forward to enter the described band of cigarette paper, this band is reduced to free burning rate the level that can extinguish automatically when cigarette being retained in described surface, this band comprises described oxygen and stores and donor metal oxide, its amount when keeping the self-extinguishment of described cigarette paper, support described coal forward free combustion by described band.
6. self-extinguishment cigarette paper that can extinguish cigarette automatically, described cigarette paper comprise a kind of oxygen and store and donor metal oxide, with in the low ignition propensity that keeps the self-extinguishment cigarette paper, support and keep the free combustion of self-extinguishment cigarette.
7. the self-extinguishment cigarette paper of claim 6, wherein said wrapping paper has base permeability, and described wrapping paper comprises:
Undressed zone and
At least one through compositions-treated to reduce the distinct area of its base permeability, with box lunch cigarette is placed on the surface, when its coal is burnt forward along described treated zone, described cigarette is extinguished automatically, described composition comprises described oxygen and stores and supply oxidized metal oxide, its support and keep described coal and burn forward along described treated zone.
8. the self-extinguishment cigarette paper of claim 7, wherein said at least one distinct area is at least one around the band on the described cigarette paper, described band is formed by free burning rate control combination thing, to obtain low ignition propensity cigarettes, described composition comprises porosity reducing agents and described oxygen stores and donor metal oxide.
9. the self-extinguishment cigarette paper of claim 6, wherein said cigarette paper has the low porosity of the tobacco rod that is used for automatic extinguish combustion, described cigarette paper has the ring zone of described oxygen storage and donor metal oxide, to support to keep the free burning rate of described tobacco rod along the free combustion in described zone.
10. the low ignition propensity cigarettes that can extinguish automatically, use oxygen to store and donor metal oxide in the wrapping paper of described cigarette, with in the low ignition propensity that keeps self-extinguishment cigarette, support and keep the free combustion of self-extinguishment cigarette, has the tobacco rod that can extinguish the tobacco density of cigarette automatically described cigarette comprising, and described wrapping paper has the ring zone of described oxygen storage and donor metal oxide, to support to keep the free burning rate of described tobacco rod along the free combustion in described zone.
11. claim 1,2,4,6,7 or 9 invention, wherein said wrapping paper comprises porosity reducing agents, and described porosity reducing agents is reduced to the porosity of described wrapping paper can extinguish the degree of cigarette automatically.
12. claim 3,5,8 or 11 invention, wherein said porosity reducing agents are selected from metal oxide, starch, the slaine as ash conditioners, soybean, guar gum, calcium carbonate, zeolite, mixed-metal oxides, polyvinyl alcohol, carboxymethyl cellulose, casein, bonding clay, inorganic bond, the fiber that grinds, whole mineral based material, flammable active carbon and composition thereof not.
13. claim 3,5,8 or 11 invention, wherein said porosity reducing agents are the plain layers of the accessory fibers on the described wrapping paper, described extra play is the endless belt form around described wrapping paper.
14. claim 1,2,3,4 or 5 invention, the tobacco rod of wherein said cigarette than the length weak point of conventional tobacco rod so that conventional suction number of times to be provided.
15. each invention among the claim 1-9, wherein said oxygen storage and donor metal oxide are the oxidation catalysts that is selected from solid solution of transition metal oxide, rare-earth oxide, mixed-metal oxides and composition thereof.
16. each invention among the claim 1-9, wherein said cigarette paper is not flammable or flammable.
17. the invention of claim 15, wherein said transition metal oxide are selected from oxide of IVB, VB, VIB, VIIB, VIII, IB family metal and composition thereof.
18. the invention of claim 17, the oxide of wherein said transition metal oxide chosen from Fe, copper, silver, manganese, titanium, zirconium, vanadium and tungsten.
19. the invention of claim 15, wherein said rare-earth oxide is selected from oxide of scandium, yttrium, lanthanide series metal and composition thereof.
20. the invention of claim 19, wherein said lanthanide metal oxide is selected from lanthana, cerium oxide, praseodymium oxide, neodymia and composition thereof.
21. the invention of claim 20, wherein said ceria sol are the precursors of cerium oxide.
22. the invention of claim 15, the solid solution of wherein said mixed-metal oxides are selected from cerium/lanthanum mixed oxide, cerium/Zr mixed oxide, cerium/zirconium/lanthanum mixed oxide, cerium/zirconium/praseodymium mixed oxide, cerium/zirconium/lanthanum/praseodymium mixed oxide, cerium/zirconium/neodymium mixed oxide and composition thereof.
23. the invention of claim 22, wherein said solid solution are the porous particles of high surface.
24. the invention of claim 23, wherein said solid solution are ratios is about 5: cerium/Zr mixed oxide that 95-is about 95: 5.
25. the invention of claim 24, wherein said ratio are about 75: 25, described particle diameter is about 6 μ m-10 μ m.
26. claim 1,2,4,6,7,8 or 9 invention, wherein said oxygen store and are applied on the described cigarette paper with donor metal oxide, infiltrate in the described cigarette paper or be incorporated into wherein in the manufacture process of described cigarette paper.
27. claim 3,5,11,12 or 13 invention, wherein said oxygen storage and donor metal oxide and described porosity reducing agents are applied on the described cigarette paper, infiltrate in the described cigarette paper, perhaps in the manufacture process of described cigarette paper, be incorporated into wherein.
28. the invention of claim 15, wherein said oxygen stores and donor metal oxide is the fine dispersion particle of average grain diameter less than about 30 μ m.
29. low sidestream smoke cigarette with low ignition propensity, described cigarette comprises the wrapping paper around tobacco rod, described wrapping paper contains a kind of composition, described composition can reduce the sidestream smoke of burning cigarette, and the non-flammable substantially finely divided porous particle auxiliary agent that comprises oxygen storage and donor metal oxide catalyst simultaneously and be used for described catalyst, describedly reduce the porosity that the sidestream smoke composition has reduced described wrapping paper, give described going out property of cigarette self-extinguishing, described oxygen stores and the amount of donor metal oxide catalyst makes it possible to support the free combustion of described cigarette in the self-extinguishment that keeps described cigarette paper.
30. low sidestream smoke cigarette wrapping paper, described wrapping paper contains a kind of composition, described composition can reduce the sidestream smoke of burning cigarette, and the non-flammable substantially finely divided porous particle auxiliary agent that comprises oxygen storage and donor metal oxide catalyst simultaneously and be used for described catalyst, describedly reduce the porosity that the sidestream smoke composition has reduced described wrapping paper, give described going out property of cigarette self-extinguishing, described oxygen stores and the amount of donor metal oxide catalyst makes it possible to support the free combustion of described cigarette in the self-extinguishment that keeps described cigarette paper.
31. the invention of claim 29 or 30, wherein said oxygen store with donor metal oxide catalyst and spread all over whole described wrapping paper.
32. containing described oxygen, the invention of claim 29 or 30, the ring zone of wherein said wrapping paper store and donor metal oxide catalyst.
33. the invention of claim 29 or 30, the porosity of wherein said wrapping paper is less than 10Coresta unit.
34. the invention of claim 29 or 30, wherein said auxiliary agent are selected from clay, the non-flammable substantially fiber that grinds, whole mineral based material, non-flammable substantially active carbon, zeolite and composition thereof.
35. the invention of claim 29 or 30, wherein said catalyst is selected from solid solution of transition metal oxide, rare-earth oxide, mixed-metal oxides and composition thereof.
36. the invention of claim 35, wherein said transition metal oxide are selected from oxide of IVB, VB, VIB, VIIB, VIII, IB family metal and composition thereof.
37. the invention of claim 36, the oxide of wherein said transition metal oxide chosen from Fe, copper, silver, manganese, titanium, zirconium, vanadium and tungsten.
38. the invention of claim 35, wherein said rare-earth oxide is selected from oxide of scandium, yttrium, lanthanide series metal and composition thereof.
39. the invention of claim 38, wherein said lanthanide metal oxide is selected from lanthana, cerium oxide, praseodymium oxide, neodymia and composition thereof.
40. the invention of claim 39, wherein said ceria sol are the precursors of cerium oxide.
41. the invention of claim 39, wherein said cerium oxide and metal or metal oxide oxidation catalysts use together, and described metal or metal oxide are selected from oxide of noble metal, transition metal, rare earth metal, IIA or IVA family metal and composition thereof.
42. the invention of claim 41, wherein selected metal or metal oxide are platinum, palladium, cupric oxide, iron oxide, magnesia, silver oxide or its mixture.
43. the invention of claim 35, the wherein said oxygen that is used for solid solution stores with donor metal oxide catalyst and is selected from lanthana, cerium oxide, praseodymium oxide, neodymia and composition thereof.
44. the invention of claim 43, wherein said mixed-metal oxides is selected from the metal oxide of zirconia, aluminium oxide, magnesia, titanium dioxide and composition thereof.
45. the invention of claim 44, the solid solution of wherein said mixed-metal oxides also comprises the oxidation catalyst that is selected from palladium, platinum, rhodium, tin oxide, cupric oxide, iron oxide, manganese oxide and composition thereof.
46. the invention of claim 45, the solid solution of wherein said mixed-metal oxides are selected from cerium/lanthanum mixed oxide, cerium/Zr mixed oxide, cerium/zirconium/lanthanum mixed oxide, cerium/zirconium/praseodymium mixed oxide, cerium/zirconium/lanthanum/praseodymium mixed oxide, cerium/zirconium/neodymium mixed oxide and composition thereof.
47. the invention of claim 46, wherein said solid solution are the porous particles of high surface.
48. the invention of claim 47, wherein said solid solution are ratios is about 5: cerium/Zr mixed oxide that 95-is about 95: 5.
49. the invention of claim 48, wherein said ratio are about 75: 25, described particle diameter is about 6 μ m-10 μ m.
50. the invention of claim 29 or 30, the amount of wherein said catalyst is for making it possible to support free combustion greater than about 2 minutes and extinguish automatically in less than about 4 minutes.
51. the invention of claim 29, the length weak point of the tobacco rod that the tobacco rod ratio of wherein said cigarette is conventional is to provide conventional suction number of times.
52. the invention of claim 39, wherein in described treatment compositions, the cerium oxide of first's amount is as described auxiliary agent, and the cerium oxide of second portion amount is as described catalyst.
53. the invention of claim 29 or 30 wherein is coated on described cigarette paper with described oxygen storage and donor metal oxide catalyst and the non-flammable substantially finely divided porous particle auxiliary agent that is used for described catalyst, infiltrates described cigarette paper or join wherein in the manufacture process of described cigarette paper.
54. the invention of claim 29 or 30, described invention also comprise a kind of ash conditioners that is selected from zirconia, titanium dioxide, magnesia, aluminium oxide, cerium oxide, tin oxide, iron oxide, manganese oxide, calcium carbonate, zirconium carbonate, magnesium carbonate and composition thereof.
55. the invention of claim 46, wherein said oxygen storage and donor metal oxide and described auxiliary agent are the cerium/Zr mixed oxides of high surface.
56. the invention of claim 55, wherein said zirconia and/or zeolite and described cerium/Zr mixed oxide are used in combination.
57. the invention of claim 29 or 30, the average grain diameter of wherein said auxiliary agent is less than about 30 μ m.
58. the invention of claim 29 or 30, wherein said auxiliary agent are the high surface area materials that surface area surpasses about 20m2/g, and average grain diameter is greater than about 1 μ m.
59. the invention of claim 34, wherein said zeolite is selected from silicalite zeolite, faujasite, X, Y and L zeolite, beta-zeolite, modenite and ZSM zeolite and composition thereof.
60. the invention of claim 35, wherein said oxygen stores and donor metal oxide is the finely divided particle of average grain diameter less than about 30 μ m.
61. the invention of claim 35 wherein stores when being fixed on described auxiliary agent surperficial with the donor metal oxide particle when described oxygen, its particle diameter is less than about 1.0 μ m.
62. the self-extinguishment cigarette of a double casing paper, wherein said wrapping paper has internal layer and outer packaging paper, one deck of wherein said inside and outside layer wrapping paper comprises a kind of oxygen and stores and donor metal oxide, with in the low ignition propensity that keeps the self-extinguishment cigarette paper, support and keep the free combustion of self-extinguishment cigarette.
63. the cigarette of claim 62, wherein said internal layer packaging paper bag contain a kind of sidestream smoke and reduces composition, described outer packaging paper bag contains described oxygen and stores and donor metal oxide.
64. the cigarette of claim 62, wherein said internal layer packaging paper has the low porosity of the tobacco rod of automatic extinguish combustion cigarette, described outer packaging paper has the ring zone of oxygen storage and donor metal oxide, to support to keep the free burning rate of described tobacco rod along described regional free combustion.
65. the cigarette of claim 64, wherein said internal layer packaging paper has porosity reducing agents, and described porosity reducing agents is selected from metal oxide, starch, the slaine as ash conditioners, soybean, guar gum, calcium carbonate, zeolite, mixed-metal oxides, polyvinyl alcohol, carboxymethyl cellulose, casein, bonding clay, inorganic bond and composition thereof.
The sidestream smoke of the level of the property extinguished reduces composition to providing automatically 66. the cigarette of claim 65, wherein said internal layer packaging paper have the porosity that reduces described internal layer packaging paper.
67. the cigarette of claim 66, wherein said sidestream smoke reduce the not flammable substantially finely divided porous particle auxiliary agent that composition comprises oxygen storage and donor metal oxide catalyst simultaneously and is used for described catalyst.
68. the cigarette of claim 67, the porosity of wherein said internal layer packaging paper is less than 10Coresta unit.
69. the cigarette of claim 68, wherein said auxiliary agent are selected from clay, the non-flammable substantially fiber that grinds, whole mineral based material, non-flammable substantially active carbon, zeolite and composition thereof.
70. the cigarette of claim 67, wherein said catalyst is selected from solid solution of transition metal oxide, rare-earth oxide, mixed-metal oxides and composition thereof.
71. the cigarette of claim 70, wherein said rare-earth oxide is selected from oxide of scandium, yttrium, lanthanide series metal and composition thereof.
72. the cigarette of claim 71, wherein said lanthanide metal oxide is selected from lanthana, cerium oxide, praseodymium oxide, neodymia and composition thereof.
73. the cigarette of claim 72, wherein said ceria sol are the precursors of cerium oxide.
74. the cigarette of claim 70, the solid solution of wherein said mixed-metal oxides are selected from cerium/lanthanum mixed oxide, cerium/Zr mixed oxide, cerium/zirconium/lanthanum mixed oxide, cerium/zirconium/praseodymium mixed oxide, cerium/zirconium/lanthanum/praseodymium mixed oxide, cerium/zirconium/neodymium mixed oxide and composition thereof.
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| US37412102P | 2002-04-22 | 2002-04-22 | |
| US60/374,121 | 2002-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN038143674A Pending CN1662157A (en) | 2002-04-22 | 2003-04-22 | Low ignition propensity cigarette having oxygen donor metal oxide in the cigarette wrapper |
Country Status (14)
| Country | Link |
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| US (1) | US20040007242A1 (en) |
| EP (1) | EP1499207A1 (en) |
| JP (1) | JP2005523389A (en) |
| KR (1) | KR20040104593A (en) |
| CN (1) | CN1662157A (en) |
| AU (1) | AU2003226988A1 (en) |
| BR (1) | BR0309472A (en) |
| CA (1) | CA2462958A1 (en) |
| MX (1) | MXPA04010451A (en) |
| NO (1) | NO20045016L (en) |
| RU (1) | RU2004133892A (en) |
| TW (1) | TW200401613A (en) |
| WO (1) | WO2003088771A1 (en) |
| ZA (1) | ZA200408526B (en) |
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| US20020179105A1 (en) * | 2001-02-26 | 2002-12-05 | Zawadzki Michael A. | Reduced ignition propensity smoking article |
| US6854469B1 (en) * | 2001-06-27 | 2005-02-15 | Lloyd Harmon Hancock | Method for producing a reduced ignition propensity smoking article |
| US6779530B2 (en) * | 2002-01-23 | 2004-08-24 | Schweitzer-Mauduit International, Inc. | Smoking articles with reduced ignition proclivity characteristics |
-
2003
- 2003-04-22 CN CN038143674A patent/CN1662157A/en active Pending
- 2003-04-22 RU RU2004133892/12A patent/RU2004133892A/en not_active Application Discontinuation
- 2003-04-22 EP EP03746799A patent/EP1499207A1/en not_active Withdrawn
- 2003-04-22 KR KR10-2004-7016984A patent/KR20040104593A/en not_active Application Discontinuation
- 2003-04-22 JP JP2003585528A patent/JP2005523389A/en not_active Withdrawn
- 2003-04-22 MX MXPA04010451A patent/MXPA04010451A/en not_active Application Discontinuation
- 2003-04-22 WO PCT/CA2003/000581 patent/WO2003088771A1/en not_active Application Discontinuation
- 2003-04-22 AU AU2003226988A patent/AU2003226988A1/en not_active Abandoned
- 2003-04-22 BR BR0309472-3A patent/BR0309472A/en not_active Application Discontinuation
- 2003-04-22 CA CA002462958A patent/CA2462958A1/en not_active Abandoned
- 2003-04-22 US US10/419,975 patent/US20040007242A1/en not_active Abandoned
- 2003-04-22 TW TW092109409A patent/TW200401613A/en unknown
-
2004
- 2004-10-21 ZA ZA200408526A patent/ZA200408526B/en unknown
- 2004-11-18 NO NO20045016A patent/NO20045016L/en not_active Application Discontinuation
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101605471B (en) * | 2006-12-11 | 2011-05-11 | 日本烟草产业株式会社 | Low fire spreading cigarette, wrapping paper for the cigarette, and method of producing wrapping paper |
| CN102920018B (en) * | 2007-07-03 | 2016-08-03 | 施韦特-莫迪国际公司 | There is the tobacco product of the ignition proclivity characteristics of reduction |
| CN108024571A (en) * | 2015-09-30 | 2018-05-11 | 菲利普莫里斯生产公司 | The smoking product of side-stream smoke with reduction |
| US11388928B2 (en) | 2015-09-30 | 2022-07-19 | Philip Morris Products S.A. | Smoking article with reduced sidestream smoke |
| CN114207215A (en) * | 2019-07-31 | 2022-03-18 | 日本烟草国际股份有限公司 | Tipping wrapper for aerosol-generating article |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2005523389A (en) | 2005-08-04 |
| MXPA04010451A (en) | 2004-12-13 |
| ZA200408526B (en) | 2006-07-26 |
| CA2462958A1 (en) | 2003-10-30 |
| TW200401613A (en) | 2004-02-01 |
| NO20045016L (en) | 2005-01-24 |
| RU2004133892A (en) | 2005-08-10 |
| AU2003226988A1 (en) | 2003-11-03 |
| KR20040104593A (en) | 2004-12-10 |
| WO2003088771A1 (en) | 2003-10-30 |
| EP1499207A1 (en) | 2005-01-26 |
| US20040007242A1 (en) | 2004-01-15 |
| BR0309472A (en) | 2005-02-01 |
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