EP2432338B1 - Rauchware mit verbessertem flussbegrenzungselement - Google Patents
Rauchware mit verbessertem flussbegrenzungselement Download PDFInfo
- Publication number
- EP2432338B1 EP2432338B1 EP10725969.9A EP10725969A EP2432338B1 EP 2432338 B1 EP2432338 B1 EP 2432338B1 EP 10725969 A EP10725969 A EP 10725969A EP 2432338 B1 EP2432338 B1 EP 2432338B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tubular portion
- flow restriction
- restriction element
- smoking article
- filter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000000391 smoking effect Effects 0.000 title claims description 74
- 239000000463 material Substances 0.000 claims description 33
- 230000004888 barrier function Effects 0.000 claims description 32
- 239000000779 smoke Substances 0.000 claims description 31
- 238000009423 ventilation Methods 0.000 claims description 31
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 29
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 29
- 238000011144 upstream manufacturing Methods 0.000 claims description 29
- 230000035699 permeability Effects 0.000 claims description 19
- 238000004891 communication Methods 0.000 claims description 12
- 239000000945 filler Substances 0.000 claims description 6
- 239000003607 modifier Substances 0.000 claims description 5
- 235000019504 cigarettes Nutrition 0.000 description 38
- 239000000123 paper Substances 0.000 description 32
- 229920002301 cellulose acetate Polymers 0.000 description 21
- 241000208125 Nicotiana Species 0.000 description 17
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 17
- 238000004519 manufacturing process Methods 0.000 description 9
- 238000001914 filtration Methods 0.000 description 8
- SNICXCGAKADSCV-JTQLQIEISA-N (-)-Nicotine Chemical compound CN1CCC[C@H]1C1=CC=CN=C1 SNICXCGAKADSCV-JTQLQIEISA-N 0.000 description 6
- 229960002715 nicotine Drugs 0.000 description 6
- SNICXCGAKADSCV-UHFFFAOYSA-N nicotine Natural products CN1CCCC1C1=CC=CN=C1 SNICXCGAKADSCV-UHFFFAOYSA-N 0.000 description 6
- 238000012384 transportation and delivery Methods 0.000 description 6
- -1 polypropylene Polymers 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- 150000008043 acidic salts Chemical class 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 239000011111 cardboard Substances 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 150000007522 mineralic acids Chemical class 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 229920002492 poly(sulfone) Polymers 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 159000000000 sodium salts Chemical class 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- HXXFSFRBOHSIMQ-VFUOTHLCSA-N alpha-D-glucose 1-phosphate Chemical compound OC[C@H]1O[C@H](OP(O)(O)=O)[C@H](O)[C@@H](O)[C@@H]1O HXXFSFRBOHSIMQ-VFUOTHLCSA-N 0.000 description 1
- 229920001222 biopolymer Polymers 0.000 description 1
- 125000005619 boric acid group Chemical group 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 235000015165 citric acid Nutrition 0.000 description 1
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid group Chemical group C(CC(O)(C(=O)O)CC(=O)O)(=O)O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 229920005839 ecoflex® Polymers 0.000 description 1
- 229920005845 ecovio® Polymers 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 235000011087 fumaric acid Nutrition 0.000 description 1
- 150000002238 fumaric acids Chemical class 0.000 description 1
- 108010037896 heparin-binding hemagglutinin Proteins 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229940111688 monobasic potassium phosphate Drugs 0.000 description 1
- 235000019796 monopotassium phosphate Nutrition 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 150000003014 phosphoric acid esters Chemical class 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 description 1
- GNSKLFRGEWLPPA-UHFFFAOYSA-M potassium dihydrogen phosphate Chemical compound [K+].OP(O)([O-])=O GNSKLFRGEWLPPA-UHFFFAOYSA-M 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 235000011044 succinic acid Nutrition 0.000 description 1
- 150000003444 succinic acids Chemical class 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid group Chemical class S(O)(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/02—Manufacture of tobacco smoke filters
- A24D3/0275—Manufacture of tobacco smoke filters for filters with special features
- A24D3/0283—Manufacture of tobacco smoke filters for filters with special features with means for a non-axial smoke flow
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/04—Tobacco smoke filters characterised by their shape or structure
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/04—Tobacco smoke filters characterised by their shape or structure
- A24D3/045—Tobacco smoke filters characterised by their shape or structure with smoke acceleration means, e.g. impact-filters
-
- 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
- A24D1/04—Cigars; Cigarettes with mouthpieces or filter-tips
- A24D1/045—Cigars; Cigarettes with mouthpieces or filter-tips with smoke filter means
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/02—Manufacture of tobacco smoke filters
- A24D3/0275—Manufacture of tobacco smoke filters for filters with special features
- A24D3/0279—Manufacture of tobacco smoke filters for filters with special features with tubes
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/04—Tobacco smoke filters characterised by their shape or structure
- A24D3/041—Tobacco smoke filters characterised by their shape or structure with adjustable means for modifying the degree of filtration of the filter
Definitions
- Ventilation may be used to reduce the carbon monoxide and tar deliveries
- high levels of ventilation can disadvantageously result in unacceptably low levels of resistance to draw (RTD).
- RTD resistance to draw
- ventilation reduces both gas phase and particulate phase deliveries, it has little effect on carbon monoxide to tar ratios.
- high density cellulose acetate filter segments may be used to increase the overall RTD of smoking articles with low permeability wrappers and high levels of ventilation to an acceptable level.
- high density cellulose acetate filter segments typically reduce tar deliveries while having little or no effect on carbon monoxide deliveries.
- a smoking article comprising: a rod of smokable material; and a filter comprising a flow restriction element attached to the rod of smokable material.
- the flow restriction element comprises: a first upstream integral tubular portion; a second downstream integral tubular portion of substantially the same external diameter as the first tubular portion; and a third central integral tubular portion located between the first and second tubular portions, the third tubular portion being of reduced external diameter compared to the first and second tubular portions.
- a transverse barrier having at least one orifice provided therein is disposed between a first upstream cavity at least partially defined by an inner periphery of the first tubular portion and a second downstream cavity at least partially defined by an inner periphery of the second tubular portion.
- a ventilation zone in communication with the second cavity is provided at a location along the filter.
- a flow restriction element for inclusion in a smoking article according to the invention, the flow restriction element comprising: a first integral tubular portion; a second integral tubular portion of substantially the same external diameter as the first tubular portion; a third central integral tubular portion located between the first and second tubular portions, the third tubular portion being of reduced external diameter compared to the first and second tubular portions; a transverse barrier having at least one orifice provided therein disposed between a first cavity at least partially defined by an inner periphery of the first tubular portion and a second cavity at least partially defined by an inner periphery of the second tubular portion; and one or more openings in a surface of the second or third tubular portion in communication with the second cavity.
- a filter for a smoking article comprising a flow restriction element according to the invention.
- the terms 'upstream' and 'downstream' are used to describe the relative positions of components of the smoking article of the invention in relation to the direction of mainstream smoke drawn from the rod of smokable material through the filter during smoking thereof.
- a filter comprising a flow restriction element and ventilation zone having the features specified above advantageously enables the production of highly ventilated smoking articles according to the invention with a desired RTD in which the carbon monoxide to tar ratio of the mainstream smoke is maintained to at an acceptable value. As described in more detail below, this is the case even when the rod of smokable material of the smoking article comprises a sidestream smoke reducing wrapper.
- Smoking articles according to the invention with filters including a flow restriction element having the features specified above may be advantageously produced using existing filter combining and cigarette manufacturing equipment without the need for significant modification. Due to its shape, the flow restriction element is resilient and can be compressed during manufacture of filters and smoking articles according to the invention, in particular during the process of attaching filters according to the invention to rods of smokable material in order to produce smoking articles according to the invention. This advantageously facilitates the manufacture of filters and smoking articles according to the invention using existing filter combining and cigarette manufacturing equipment.
- the reduced external diameter of the third tubular portion of the flow restriction element compared to the first and second tubular portions thereof advantageously establishes a ventilation zone between the periphery of the filter and the exterior of the third tubular portion.
- the increased external diameter of the first and second tubular portions of the flow restriction element compared to the third tubular portion advantageously provide reinforcement so that the filter does not collapse when, for example, the smoking article is held between a consumer's fingers.
- the first upstream cavity of the flow restriction element advantageously allows mainstream smoke drawn through the rod of smokable material in use to concentrate around the at least one orifice in the transverse barrier before being drawn further downstream through the at least one orifice.
- the first upstream cavity helps to prevent blockage of the at least one orifice during smoking.
- the transverse barrier comprises a single orifice, more preferably a substantially central single orifice.
- the orifice is preferably between about 0.4 mm and about 0.8 mm in diameter, more preferably about 0.6 mm in diameter.
- the at least one orifice is between about 0.2 mm and about 1 mm in length, more preferably about 0.7 mm in length.
- the term 'length' is used to denote the dimension in the longitudinal direction of the smoking article.
- the length of the at least one orifice is equal to the thickness of the transverse barrier.
- the at least one orifice is sized to contribute sufficient pressure drop such that the smoking article has a RTD of between about 30 mm WG (water gauge) and about 120 mm WG, more preferably of at least about 40 mm WG.
- the smoke impermeable transverse barrier may be of any suitable shape.
- the transverse barrier may be substantially perpendicular to the longitudinal axis of the smoking article.
- the transverse barrier may be frustroconical and convergent or divergent relative to the direction of mainstream smoke drawn from the rod of smokable material through the filter.
- the transverse barrier may be concave or convex relative to the direction of mainstream smoke drawn from the rod of smokable material through the filter.
- the transverse barrier is concave relative to the direction of mainstream smoke drawn from the rod of smokable material through the filter. This advantageously eases compression of the flow restriction element during manufacture of filters and smoking articles according to the invention, in particular during the process of attaching filters according to the invention to rods of smokable material in order to produce smoking articles according to the invention.
- the second downstream cavity of the flow restriction element advantageously allows mainstream smoke drawn through the one or more orifices provided in the transverse barrier to mix with air drawn through the ventilation zone prior to being drawn into a consumer's mouth.
- the ventilation zone provides ventilation of mainstream smoke drawn from the rod of smokable material in the second cavity of the flow restriction element of the filter, that is at a location downstream of the at least one orifice in the transverse barrier of the flow restriction element. Preferably, no ventilation is provided upstream of the at least one orifice in the transverse barrier. Provision of ventilation only downstream of the at least one orifice advantageously limits the extent to which a consumer may attempt to draw harder on the smoking article during a puff. As the flow rate of a puff increases, pressure drop at the flow restriction element increases more rapidly compared to in a smoking article comprising a conventional cellulose acetate tow filter. Thus a consumer drawing harder during a puff results in increased ventilation of the mainstream smoke rather than increased mainstream smoke delivery. Furthermore, provision of ventilation only downstream of the at least one orifice in the transverse wall of the flow restriction element advantageously separates the functions of the ventilation zone and at least one orifice (ventilation levels and RTD, respectively).
- the filter is attached to the rod of smokable material by a band of substantially air impermeable tipping paper.
- the ventilation zone comprises at least one circumferential row of perforations provided through a portion of the tipping paper, more preferably at least one circumferential row of perforations provided through a portion of the tipping paper overlying the third tubular portion of the flow restriction element.
- the at least one circumferential row of perforations is located at least 12 mm from the mouth end of the smoking article.
- the perforations in the tipping paper may be made prior to or during construction of the smoking article using conventional techniques.
- the perforations in the tipping paper may be created using online laser perforation, mechanical perforation or electrostatic perforation.
- the tipping paper is pre-perforated.
- the first cavity of the flow restriction element is at least partially defined by an inner periphery of the first and third tubular portions of the flow restriction element and the second cavity of the flow restriction element is at least partially defined by an inner periphery of the second tubular portion of the flow restriction element.
- one or more openings are preferably provided in an upstream transverse end surface of the second tubular portion that form a communication path between the second cavity and the at least one circumferential row of perforations of the ventilation zone. More preferably, a plurality of substantially equally circumferentially spaced apart openings are provided in an upstream transverse end surface of the second tubular portion that form a communication path between the second cavity and the at least one circumferential row of perforations of the ventilation zone. For example, twelve substantially equally circumferentially spaced apart openings may be provided in the upstream transverse end surface of the second tubular portion that extends radially outward from the third tubular portion.
- the one or more openings have a diameter of between about 0.3 mm and about 0.8 mm, more preferably of about 0.5 mm.
- the first cavity of the flow restriction element is at least partially defined by an inner periphery of the first tubular portion of the flow restriction element and the second cavity of the flow restriction element is at least partially defined by an inner periphery of the second and third tubular portions of the flow restriction element.
- one or more openings are preferably provided in a circumferential surface of the third tubular portion that form a communication path between the second cavity and the at least one circumferential row of perforations of the ventilation zone.
- a pair of elongate opposed openings may be provided in the upstream circumferential surface of the third tubular portion.
- smoking articles according to the invention have a ventilation level of between about 50 percent and about 90 percent, more preferably of between about 60 percent and about 80 percent, most preferably of about 70 percent.
- the flow restriction element may be made from any suitable materials or combination or materials. Suitable materials from which the flow restriction element may be formed include, but not limited to, plastic (for example, polypropylene, polyethylene, polystyrene, nylon, polysulfone, polyester and polyurethane), cellulosic material and combinations or composites thereof.
- plastic for example, polypropylene, polyethylene, polystyrene, nylon, polysulfone, polyester and polyurethane
- cellulosic material and combinations or composites thereof.
- the flow restriction element is made from a biodegradable material, more preferably from a biodegradable polymeric material.
- Suitable biodegradable polymeric materials are known in the art and commercially available under the brand name Mater-Bi® from Novamont of Novara, Italy and under the brand names Ecoflex® and Ecovio® from BASF of Ludwigshafen, Germany.
- the flow restriction element is a single piece, more preferably a single injection molded piece.
- the flow restriction element is between about 10 mm and about 20 mm in length, more preferably between about 12 mm and about 14 mm in length, most preferably about 13 mm in length.
- the first tubular portion of the flow restriction element is at least about 4 mm in length, more preferably at least about 5 mm in length.
- the second tubular portion of the flow restriction element is at least about 3 mm in length, most preferably about 3.5 mm in length.
- the third tubular portion of the flow restriction element is at least about 3 mm in length, most preferably about 3.5 mm in length.
- the transverse barrier is at least about 1 mm, more preferably at least about 1.5 mm from the downstream end of the second tubular portion of the flow restriction element.
- the external diameter of the first and second tubular portions of the flow restriction element is between about 6 mm and about 9 mm, more preferably between about 7 mm and about 8.4 mm, most preferably between about 7.5 mm and about 7.9 mm.
- the external diameter of the third tubular portion of the flow restriction element is between about 4 mm and about 7.5 mm, more preferably between about 4.5 mm and about 6.8 mm, most preferably between about 4.5 mm and about 5.5 mm.
- the filter may further comprise one or more filter segments upstream of the flow restriction element.
- the filter may further comprise one or more filter segments downstream of the flow restriction element.
- the filter further comprises a first filter segment upstream of the flow restriction element and a second filter segment downstream of the flow restriction element.
- the first and second filter segments are between about 5 mm and about 12 mm in length, more preferably between about 6 mm and about 8 mm in length, most preferably about 7 mm in length.
- the upstream and downstream filter segments may be the same or different.
- the filter may comprise a pair of identical segments of cellulose acetate tow disposed on either side of the flow restriction element.
- the filter may comprise a plug of cellulose acetate tow upstream of the flow restriction element and a hollow tube of for example, paper, cardboard or cellulose acetate downstream of the flow restriction element.
- the one or more filter segments comprise filtration material of low particulate phase filtration efficiency.
- the particulate phase filtration efficiency of each of the one or more filter segments is less than about 30 percent, more preferably less than about 20 percent.
- the filter comprises a first filter segment of low particulate phase filtration efficiency upstream of the flow restriction element and a second filter segment of low particulate phase filtration efficiency downstream of the flow restriction element.
- the one or more filter segments may comprise cellulosic material, such as cellulose acetate tow, or other suitable fibrous filtration material of low filtration efficiency.
- the denier per filament and total denier of the tow may be selected in order to achieve a desired particulate phase filtration efficiency and RTD.
- the cellulose acetate tow has a denier per filament of about 8 or greater and a total denier of about 28,000 or less.
- the flow restriction element and, where present, one or more filter segments are circumscribed by a band of plug wrap.
- the flow restriction element and one or more filter segments are circumscribed by a band of substantially air impermeable plug wrap, preferably a band of plug wrap having a permeability of between about 7,000 Coresta units and about 20,000 Coresta units.
- the flow restriction element and one or more filter segments are circumscribed by a band of substantially air permeable plug wrap.
- the band of plug wrap is affixed to the circumferential outer surface of the first tubular portion of the flow restriction element. More preferably, the plug wrap is affixed to the circumferential outer surface of the first tubular portion of the flow restriction element so as to establish a substantially air-tight seal at the outer surface of the first tubular portion. Most preferably, the band of plug wrap is affixed to the circumferential outer surfaces of the first and second tubular portions of the flow restriction element.
- the band of plug wrap is preferably affixed to the circumferential outer surface of the upstream filter segment. More preferably, the plug wrap is affixed to the circumferential outer surfaces of the upstream filter segment and the first tubular portion of the flow restriction element so as to establish a substantially air-tight seal at the outer surface of the first tubular portion of the flow restriction element.
- the band of plug wrap is preferably affixed to the circumferential outer surface of the downstream filter segment.
- the band of plug wrap may be affixed to the flow restriction element and one or more filter segments using, for example, an adhesive.
- An air-tight seal between the band of plug wrap and the first tubular portion of the flow restrictor may be obtained through the use of an adhesive offering a good cohesion and a high surface tackiness.
- Suitable adhesives are known in the art and commercially available under the brand name Adhesin from Henkel of Düsseldorf, Germany.
- the filter comprising the band of plug wrap is preferably attached to the rod of smokable material by a band of substantially air impermeable tipping paper.
- the ventilation zone preferably comprises at least one circumferential row of perforations provided through a portion of the tipping paper and the plug wrap that are formed online during manufacture of the smoking article.
- the filter comprises a band of substantially air permeable plug wrap
- the filter is preferably attached to the rod of smokable material by a band of pre-perforated tipping paper comprising at least one circumferential row of perforations.
- the RTD of smoking articles according to the invention may be adjusted by use of pre-perforated tipping paper and air permeable plug wrap.
- the at least one orifice of the flow restriction element may be sized to allow substantially all of the ventilating air that, in use, flows through the perforations in the tipping paper and air permeable plug wrap to flow into the second downstream cavity.
- the levels of ventilation of smoking articles according to the invention may thus be advantageously varied through the use of different pre-perforated tipping papers or plug wraps with different porosity levels or combinations thereof.
- the filter has an overall length of between about 20 mm and about 34 mm, more preferably between about 25 mm and about 30 mm, most preferably about 27 mm.
- the filters of smoking articles according to the invention have an overall encapsulated RTD of between about 250 mm WG and about 350 mm WG, more preferably of between about 275 mm WG and 325 mm WG.
- smoking articles according to the invention have an unencapsulated RTD of at least about 30 mm WG, more preferably of at least about 40 mm WG.
- the rod of smokable material comprises tobacco circumscribed by a wrapper, more preferably tobacco cut filler circumscribed by a wrapper.
- the rod of smokable material comprises a wrapper that results in the production of reduced amounts of sidestream smoke.
- Suitable sidestream smoke reducing wrappers for use in smoking articles according to the invention, and methods for producing such wrappers, are well known in the art and described in, for example, US-A-5,152,304 .
- the wrapper has a high basis weight and a low permeability. More preferably, the wrapper is of the type described in US-A-5,152,304 .
- the wrapper has a basis weight of at least about 35 g/m 2 , more preferably a basis weight of between about 35 g/m 2 and about 60 g/m 2 , most preferably a basis weight of between about 40 g/m 2 and about 50 g/m 2 .
- the wrapper has a permeability of about 18 Coresta units or less, more preferably of between about 4 Coresta units and about 18 Coresta units, most preferably of between about 5 Coresta units and about 8 Coresta units.
- the wrapper comprises a filler, more preferably an inorganic filler, most preferably calcium carbonate.
- the wrapper has a filler loading of between about 20 percent and about 50 percent by weight, more preferably of about 40 percent by weight.
- the wrapper further comprises a burn modifier. More preferably, the wrapper comprises between 0.3 percent and 5 percent by weight of a burn modifier.
- Suitable burn modifiers are known in the art and include, but are not limited to, acidic salts of inorganic or organic acids, including monobasic potassium and sodium salts of polyvalent inorganic acids (such as phosphoric, pyrophosphoric, boric, and sulfuric acids) and mono-potassium and sodium salts of carboxylic acids (such as citric, succinic, and fumaric acids), compounds that thermally decompose to generate acidic species in situ, including salts of polyvalent acids with at least one labile proton, various esters that are acidic precursors, including phosphate esters (such as the potassium salt of ⁇ -D-glucose-1-phosphate), and combinations thereof.
- the burn modifier is an acidic salt, more preferably monobasic potassium phosphate.
- smoking articles according to the invention have a carbon monoxide to tar ratio of less than or equal to 1.
- smoking articles according to the invention have a total nicotine free dry particulate matter (NFDPM) or 'tar' delivery of between about 3 mg and about 12 mg.
- NFDPM nicotine free dry particulate matter
- 'tar' delivery of between about 3 mg and about 12 mg.
- the smoking article 10 according to the first embodiment of the invention shown in Figure 1 comprises a cylindrical tobacco rod 12 and a filter 14.
- the filter 14 is attached to the tobacco rod 12 by a band of tipping paper 16, which circumscribes the filter 14 and an adjacent portion of the tobacco rod 12, which comprises a charge of tobacco cut filler 18 circumscribed by a high basis weight, low permeability, paper wrapper 20.
- the filter 14 comprises a first filter segment 22 adjacent to and abutting the tobacco rod 12, a second filter segment 24 at the mouth end of the smoking article 10 and a one-piece, injection molded, flow restriction element 26 disposed between the first filter segment 22 and the second filter segment 24.
- the first and second filter segments 22, 24 are preferably low particulate efficiency cellulose acetate tow filter segments.
- the first and second filter elements 22, 24 and the flow restriction element 26 are circumscribed by a band of plug wrap 28.
- the flow restriction element 26 which is preferably formed of biodegradable polymeric material, includes a first upstream integral tubular portion 30 adjacent to and abutting the first filter segment 22, a second downstream integral tubular portion 32 of substantially the same external diameter as the first tubular portion 30, which is adjacent to and abuts the second filter segment 24, and a third central integral tubular portion 34 located between and of reduced external diameter compared to the first and second tubular portions 30, 32.
- the plug wrap 28 is affixed to the circumferential outer surfaces of the first filter element 22 and the first tubular portion 30 of the flow restriction element 26 by an adhesive (not shown) so as to form a substantially air-tight seal at the outer surface of the first tubular portion 30 of the flow restriction element 26.
- the inner surface of the plug wrap 28 is spaced apart from the circumferential outer surface of the third tubular portion 34 as shown in Figure 2 . As described further below, the space between the plug wrap 28 and overlying band of tipping paper 16 and the circumferential outer surface of the third tubular portion 34 forms a ventilation zone.
- the flow restriction element 26 further comprises a transverse barrier 36 with a single central orifice 38 of reduced diameter provided therein. As shown in Figure 2 , the transverse barrier 36 is disposed between a first upstream cavity 40, which is at least partially defined by the inner peripheries of the first and third tubular portions 30, 34 of the flow restriction element 26, and a second downstream cavity 42, which is at least partially defined by the inner periphery of the second-tubular portion 32 of the flow restriction element.
- One or more circumferential rows of perforations 44 are provided through a portion of the tipping paper 16 and plug wrap 28 overlying the third tubular portion 34 of the flow restriction element 26.
- a plurality of substantially equally circumferentially spaced apart openings 46 are provided in the upstream transverse end surface of the second tubular portion 32 that extends radially outward around the third tubular portion 34. These openings 46 form a communication path between the one or more circumferential rows of perforations 44 provided in the tipping paper 16 and plug wrap 28 and the second cavity 42, as shown in Figure 2 .
- mainstream smoke from the tobacco rod 12 of the smoking article 10 is drawn downstream through the first filter segment 22 of the filter 14 into the first cavity 40 of the flow restriction element 26.
- Mainstream smoke drawn into the first cavity 40 concentrates around the central orifice 38 of the transverse barrier 36 of the flow restriction element 26 before being drawn further downstream through the central orifice 38 into the second cavity 42 of the flow restriction element 26.
- Ventilating air is also drawn into the second cavity 42 through the one or more circumferential rows of perforations 44 in the tipping paper 16 and plug wrap 28 and the plurality of substantially equally circumferentially spaced apart openings 46 provided in the upstream transverse end surface of the second tubular portion 32.
- Mainstream smoke drawn through the central orifice 38 in the transverse barrier 36 mixes with the ventilating air in the second cavity 42 before being drawn further downstream through the second filter segment 24.
- the high basis weight, low permeability paper wrapper 20 of the tobacco rod 12 advantageously reduces the sidestream smoke generated by the smoking article 10 in a known manner.
- the smoking article according to the second embodiment of the invention shown in Figures 4 and 5 is of largely similar construction and design as the smoking article 10 according to the first embodiment of the invention shown in Figures 1 to 3 .
- the similar reference numerals are used in Figures 4 and 5 for features of the smoking article according to the second embodiment of the invention that correspond to features of the smoking article according to the first embodiment of the invention previously described.
- the transverse barrier 36' is disposed between a first upstream cavity 40', which is at least partially defined by the inner periphery of the first tubular portion 30' of the flow restriction element 26, and a second downstream cavity 42', which is at least partially defined by the inner peripheries of the second and third tubular portions 32', 34' of the flow restriction element 26'.
- a pair of opposed elongate openings 46' which form a communication path between the one or more circumferential rows of perforations 44 in the tipping paper 16 and plug wrap 28 and the second cavity 42', are provided in the circumferential surface of the third tubular body portion 34' of the flow restriction element 26' as shown in Figure 5 .
- ventilating air is drawn into the second cavity 42' through the one or more circumferential rows of perforations 44 in the tipping paper 16 and plug wrap 28 and the pair of opposed elongate openings 46' provided in the circumferential surface of the third tubular body portion 34', where it mixes with mainstream smoke drawn through the central orifice 38' in the transverse barrier 36'.
- the tobacco rods 12 of the smoking articles according to the first and second embodiments of the invention may be constructed using conventional cigarette rod making equipment wherein the tobacco cut filler 18 is air formed into a continuous rod on a travelling belt and enwrapped with a continuous ribbon of the high basis weight, low permeability, paper wrapper 20, which is then glued along its longitudinal seam.
- the filters 14 of the smoking articles according to the first and second embodiments of the invention may also be constructed using existing high speed filter rod making equipment employing known combining techniques.
- the filters 14 and the tobacco rods 12 may then be combined and attached to one another by affixing the band of tipping paper 16 around the filter 14 and an adjacent portion of the tobacco rod 12 using existing machinery employed for attaching filters to tobacco rods during the production of known filter cigarettes.
- Table 1 provides the puff count, total amounts of smoke nicotine (SN), tar and carbon monoxide (CO) and CO/tar and CO/SN ratios for: a first cigarette (Cigarette A) constructed in accordance with the first embodiment of the invention shown in Figures 1 to 3 in which the first and second filter segments are plugs of low particulate efficiency cellulose acetate tow; a second cigarette (Cigarette B) according to the invention of largely identical construction to Cigarette A, but in which the second filter segment is replaced by a hollow cylindrical tube of cellulose acetate tow; and a third cigarette (Cigarette C) according to the invention of largely identical construction to Cigarette A, but in which the high basis weight, low permeability wrapper of the tobacco rod is replaced by a paper wrapper of conventional basis weight and permeability.
- SN smoke nicotine
- CO carbon monoxide
- Table 1 also provides the puff count, total amounts of smoke nicotine (SN), tar and carbon monoxide (CO) and CO/tar and CO/SN ratios for three cigarettes not in accordance with the invention having conventional cellulose acetate tow filters.
- Two of the cigarettes have tobacco rods with high basis weight, low permeability wrappers (Cigarettes D and E), and one of the cigarettes has a tobacco rod with a wrapper of conventional basis weight and permeability (Cigarette F).
- low permeability wrapper As shown in Table 1, for the cigarettes having conventional cellulose acetate tow filters inclusion of a high basis weight, low permeability wrapper (Cigarettes D and E) leads to an increase carbon monoxide yield. Furthermore, while increasing the ventilation level of the cigarettes having conventional cellulose acetate tow filters and a high basis weight, low permeability wrapper (cigarettes D and E) significantly reduces the carbon monoxide yield, it does not significantly affect the carbon monoxide to tar ratio.
- the cigarettes according to the invention (Cigarettes A, B and C) all have carbon monoxide to tar ratios of less than 1.0.
- the puff count and smoke nicotine (SN) and tar yields of the cigarette according to the invention having a high basis weight, low permeability wrapper and a second filter segment consisting of a hollow cylindrical tube of cellulose acetate tow (Cigarette B) are very similar to those of the cigarette having a conventional cellulose acetate tow filter and a wrapper of conventional basis weight and permeability (Cigarette F).
- the carbon monoxide yield and carbon monoxide to tar and carbon monoxide to smoke nicotine ratios of Cigarette B are advantageously significantly reduced compared to Cigarette F.
- smoking articles comprising filters having first and second filter segments comprising plugs of cellulose acetate tow.
- smoking articles according to the invention may comprise filters having one or more filter segments comprising other materials such as paper (for example, filter paper or carbon paper), cardboard, plastic (for example, polypropylene, polyethylene, polystyrene, nylon, polysulfone, polyester or polyurethane), biopolymers and combinations thereof.
- smoking articles comprising filters having flow restriction elements comprising transverse barriers with a single substantially central orifice provided therein
- smoking articles according to the invention may comprise filters comprising transverse barriers with a single non-central orifice or two or more orifices provided therein.
Landscapes
- Cigarettes, Filters, And Manufacturing Of Filters (AREA)
Claims (15)
- Rauchartikel (10), der Folgendes umfasst:einen Stab aus rauchbarem Material (12);einen Filter (14), der ein Flussbegrenzungselement (26, 26') umfasst, das an dem Stab aus rauchbarem Material (12) befestigt ist, wobei das Flussbegrenzungselement (26, 26') Folgendes umfasst:einen ersten stromaufwärtigen integrierten röhrenförmigen Abschnitt (30, 30');einen zweiten stromabwärtigen integrierten röhrenförmigen Abschnitt (32, 32') mit im Wesentlichen demselben Außendurchmesser wie der erste röhrenförmige Abschnitt (30, 30');einen dritten zentralen integrierten röhrenförmigen Abschnitt (34, 34'), der sich zwischen dem ersten und dem zweiten röhrenförmigen Abschnitt (30, 30', 32, 32') befindet, wobei der dritte röhrenförmige Abschnitt (34, 34') einen reduzierten Außendurchmesser im Vergleich zum ersten und zum zweiten röhrenförmigen Abschnitt (30, 30', 32, 32') hat; undeine quer laufende Barriere (36, 36') mit wenigstens einer darin befindlichen Öffnung (38, 38'), wobei die quer laufende Barriere (36, 36') zwischen einem ersten stromaufwärtigen Hohlraum (40, 40'), der wenigstens teilweise durch eine innere Peripherie des ersten röhrenförmigen Abschnitts (30, 30') definiert wird, und einem zweiten stromabwärtigen Hohlraum (42, 42'), der wenigstens teilweise durch eine innere Peripherie des zweiten röhrenförmigen Abschnitts (32, 32') definiert wird, angeordnet ist; undeine Ventilationszone in Verbindung mit dem zweiten Hohlraum (42, 42') an einer Stelle entlang dem Filter (14).
- Rauchartikel (10) nach Anspruch 1, wobei die quer laufende Barriere (36, 36') eine darin befindliche einzelne im Wesentlichen zentrale Öffnung (38, 38') mit einem Durchmesser zwischen 0,4 mm und 0,8 mm hat.
- Rauchartikel (10) nach Anspruch 1 oder 2, wobei der Filter (14) an dem Stab aus rauchbarem Material (12) mit einem Streifen Tipping-Papier (16) befestigt ist und die Ventilationszone wenigstens eine Umfangsreihe von Perforationen (44) aufweist, die in einem Abschnitt des Tipping-Papiers (16) vorgesehen sind, der über dem dritten röhrenförmigen Abschnitt (34, 34') des Flussbegrenzungselements (26, 26') liegt.
- Rauchartikel (10) nach Anspruch 3, wobei der erste Hohlraum (40) des Flussbegrenzungsmittels (26) wenigstens teilweise durch eine innere Peripherie des ersten und dritten röhrenförmigen Abschnitts (30, 34) definiert wird.
- Rauchartikel nach Anspruch 4, wobei ein oder mehrere Spalte (46) in einer stromaufwärtigen quer laufenden Endfläche des zweiten röhrenförmigen Abschnitts (32) vorgesehen sind, die einen Verbindungsweg zwischen dem zweiten Hohlraum (42) und der wenigstens einen Umfangsreihe von Perforationen (44) bilden.
- Rauchartikel nach Anspruch 3, wobei der zweite Hohlraum (42') des Flussbegrenzungselements (26') wenigstens teilweise durch eine innere Peripherie des zweiten und dritten röhrenförmigen Abschnitts (32', 34') definiert wird.
- Rauchartikel nach Anspruch 6, wobei ein oder mehrere Spalte (46') in einer Umfangsfläche des dritten röhrenförmigen Abschnitts (34) vorgesehen sind, die einen Verbindungsweg zwischen dem zweiten Hohlraum (42') und der wenigstens einen Umfangsreihe von Perforationen (44) bilden.
- Rauchartikel (10) nach einem vorherigen Anspruch, wobei der Filter (14) ferner ein erstes Filtersegment (22) stromaufwärts des Flussbegrenzungselements (26, 26') und ein zweites Filtersegment (24) stromabwärts des Flussbegrenzungselements (26, 26') umfasst.
- Rauchartikel (10) nach einem vorherigen Anspruch, wobei die Hülle (20) ein Grundgewicht zwischen 35 g/m2 und 60 g/m2, eine Füllstoffladung zwischen 20 und 50 Gew.-%, eine Durchlässigkeit zwischen 2 Coresta-Einheiten und 18 Coresta-Einheiten hat und zwischen 0,3 und 5 Gew.-% eines Verbrennungsmodifizierers aufweist.
- Rauchartikel (10) nach einem vorherigen Anspruch mit einem Ventilationsgrad von wenigstens etwa 50 Prozent, vorzugsweise wenigstens etwa 60 Prozent.
- Rauchartikel (10) nach einem vorherigen Anspruch, wobei das Flussbegrenzungselement (26, 26') wenigstens etwa 10 mm, bevorzugter wenigstens etwa 13 mm lang ist.
- Rauchartikel (10) nach einem vorherigen Anspruch, wobei die quer laufende Barriere (36, 36') relativ zur Richtung des Hauptstromrauchs, der aus dem Stab aus rauchbarem Material (12) durch den Filter (14) gezogen wird, konkav gewölbt ist.
- Rauchartikel (10) nach einem vorherigen Anspruch, wobei die Anzahl von Öffnungen (38, 38') in der quer laufenden Barriere (36, 36') und deren Abmessungen so gewählt sind, dass ein Verhältnis zwischen Kohlenmonoxid und Teer von gleich oder kleiner als 1 erreicht wird.
- Flussbegrenzungselement (26, 26') zur Aufnahme in einem Rauchartikel (10) nach einem vorherigen Anspruch, wobei das Flussbegrenzungselement Folgendes umfasst:einen ersten integrierten röhrenförmigen Abschnitt (30, 30');einen zweiten integrierten röhrenförmigen Abschnitt (32, 32') mit im Wesentlichen demselben Außendurchmesser wie der erste röhrenförmige Abschnitt (30, 30');einen dritten zentralen integrierten röhrenförmigen Abschnitt (34, 34'), der sich zwischen dem ersten und dem zweiten röhrenförmigen Abschnitt (30, 30', 32, 32') befindet, wobei der dritte röhrenförmige Abschnitt (34, 34') einen reduzierten Außendurchmesser im Vergleich zum ersten und zum zweiten röhrenförmigen Abschnitt (30, 30', 32, 32') hat;eine quer laufende Barriere (36, 36') mit wenigstens einer darin befindlichen Öffnung (38, 38'), wobei die quer laufende Barriere (36, 36') zwischen einem ersten Hohlraum (40, 40'), der wenigstens teilweise durch eine innere Peripherie des ersten röhrenförmigen Abschnitts (30, 30') definiert wird, und einem zweiten Hohlraum (42, 42'), der wenigstens teilweise durch eine innere Peripherie des zweiten röhrenförmigen Abschnitts (32, 32') definiert wird, angeordnet ist; undein oder mehrere Spalte in einer Oberfläche des zweiten oder dritten röhrenförmigen Abschnitts (32, 34') in Verbindung mit dem zweiten Hohlraum (42, 42').
- Filter (14) für einen Rauchartikel (10), der ein Flussbegrenzungselement (26, 26') nach Anspruch 14 umfasst.
Priority Applications (3)
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SI201030713T SI2432338T1 (sl) | 2009-05-18 | 2010-05-17 | Kadilski izdelek z izboljšanim elementom za omejevanje toka |
PL10725969T PL2432338T3 (pl) | 2009-05-18 | 2010-05-17 | Wyrób do palenia z udoskonalonym elementem ograniczającym przepływ |
EP10725969.9A EP2432338B1 (de) | 2009-05-18 | 2010-05-17 | Rauchware mit verbessertem flussbegrenzungselement |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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EP09251336A EP2253231A1 (de) | 2009-05-18 | 2009-05-18 | Rauchware mit verbessertem Flussbegrenzungselement |
PCT/EP2010/003016 WO2010133334A1 (en) | 2009-05-18 | 2010-05-17 | Smoking article with improved flow restriction element |
EP10725969.9A EP2432338B1 (de) | 2009-05-18 | 2010-05-17 | Rauchware mit verbessertem flussbegrenzungselement |
Publications (2)
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EP2432338A1 EP2432338A1 (de) | 2012-03-28 |
EP2432338B1 true EP2432338B1 (de) | 2014-07-16 |
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EP09251336A Withdrawn EP2253231A1 (de) | 2009-05-18 | 2009-05-18 | Rauchware mit verbessertem Flussbegrenzungselement |
EP10725969.9A Active EP2432338B1 (de) | 2009-05-18 | 2010-05-17 | Rauchware mit verbessertem flussbegrenzungselement |
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EP09251336A Withdrawn EP2253231A1 (de) | 2009-05-18 | 2009-05-18 | Rauchware mit verbessertem Flussbegrenzungselement |
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US (1) | US20100288293A1 (de) |
EP (2) | EP2253231A1 (de) |
JP (1) | JP5710601B2 (de) |
KR (1) | KR20120042761A (de) |
CN (1) | CN102427742B (de) |
AR (1) | AR079391A1 (de) |
AU (1) | AU2010251445B2 (de) |
BR (1) | BRPI1013065B1 (de) |
CO (1) | CO6390089A2 (de) |
DK (1) | DK2432338T3 (de) |
ES (1) | ES2512017T3 (de) |
HK (1) | HK1165233A1 (de) |
MX (1) | MX2011012454A (de) |
MY (1) | MY154297A (de) |
PL (1) | PL2432338T3 (de) |
PT (1) | PT2432338E (de) |
RS (1) | RS53576B1 (de) |
RU (1) | RU2524898C2 (de) |
SG (1) | SG175910A1 (de) |
SI (1) | SI2432338T1 (de) |
TW (1) | TWI513414B (de) |
UA (1) | UA103925C2 (de) |
WO (1) | WO2010133334A1 (de) |
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DE3616617A1 (de) * | 1985-05-20 | 1986-11-20 | Tobacco Research and Development Institute Ltd., Zug | Zigarette |
CH669309A5 (de) * | 1985-08-26 | 1989-03-15 | Baumgartner Papiers Sa | |
EP0327655B1 (de) * | 1988-02-10 | 1991-07-17 | Hans Elstner | Rauchfilter, insbesondere für Tabakpfeifen |
US4949736A (en) * | 1988-03-16 | 1990-08-21 | R. J. Reynolds Tobacco Company | Variable ventilation mouthpiece for a smoking article |
JPH0361896U (de) * | 1989-10-23 | 1991-06-18 | ||
US5152304A (en) | 1989-10-31 | 1992-10-06 | Philip Morris Incorporated | Wrapper for a smoking article |
JPH0523158A (ja) * | 1991-07-17 | 1993-02-02 | Daicel Chem Ind Ltd | シガレツトフイルター |
GB9410482D0 (en) * | 1994-05-25 | 1994-07-13 | Brady Andrew | Tobacco smokers' mouthpiece |
DE19536505A1 (de) * | 1995-09-29 | 1997-04-10 | Biotec Biolog Naturverpack | Biologisch abbaubares Filtermaterial und Verfahren zu seiner Herstellung |
DE19718296B4 (de) * | 1997-04-30 | 2006-06-29 | British American Tobacco (Germany) Gmbh | Ventilierte Filtercigarette mit einem koaxialen Filterelement |
IT1297058B1 (it) * | 1997-09-23 | 1999-08-03 | Luparini Alessandro Leonetti | Sigaretta dotata di dispositivo inerziale-ipobarico atto al trattenimento del catrame contenuto nel fumo di tabacco e/o |
US6345625B1 (en) * | 1997-12-06 | 2002-02-12 | Kar Eng Chew | Filter for secondary smoke and smoking articles incorporating the same |
KR100306915B1 (ko) * | 1999-08-20 | 2001-09-24 | 송윤강 | 담배 필터용 분산구 |
BRPI0709264B1 (pt) * | 2006-03-28 | 2018-09-18 | Philip Morris Products Sa | artigo para fumar com um restritor |
US8424539B2 (en) * | 2006-08-08 | 2013-04-23 | Philip Morris Usa Inc. | Smoking article with single piece restrictor and chamber |
TW200911141A (en) * | 2007-03-09 | 2009-03-16 | Philip Morris Prod | Super recessed filter cigarette restrictor |
TW200911138A (en) * | 2007-03-09 | 2009-03-16 | Philip Morris Prod | Smoking articles with restrictor and aerosol former |
TW200911143A (en) * | 2007-03-09 | 2009-03-16 | Philip Morris Prod | Restrictor attachment for unfiltered smoking article |
RU71515U1 (ru) * | 2007-11-19 | 2008-03-20 | Виталий Геннадьевич Барабанов | Фильтр для сигарет |
GB0800216D0 (en) * | 2008-01-07 | 2008-02-13 | British American Tobacco Co | Smoking article |
-
2009
- 2009-05-18 EP EP09251336A patent/EP2253231A1/de not_active Withdrawn
-
2010
- 2010-05-17 WO PCT/EP2010/003016 patent/WO2010133334A1/en active Application Filing
- 2010-05-17 KR KR1020117030253A patent/KR20120042761A/ko active Search and Examination
- 2010-05-17 UA UAA201114791A patent/UA103925C2/ru unknown
- 2010-05-17 EP EP10725969.9A patent/EP2432338B1/de active Active
- 2010-05-17 PT PT107259699T patent/PT2432338E/pt unknown
- 2010-05-17 BR BRPI1013065-9A patent/BRPI1013065B1/pt active IP Right Grant
- 2010-05-17 AR ARP100101713A patent/AR079391A1/es active IP Right Grant
- 2010-05-17 SG SG2011081635A patent/SG175910A1/en unknown
- 2010-05-17 MY MYPI2011005285A patent/MY154297A/en unknown
- 2010-05-17 JP JP2012511187A patent/JP5710601B2/ja active Active
- 2010-05-17 TW TW099115616A patent/TWI513414B/zh not_active IP Right Cessation
- 2010-05-17 PL PL10725969T patent/PL2432338T3/pl unknown
- 2010-05-17 RU RU2011151720/12A patent/RU2524898C2/ru active
- 2010-05-17 CN CN201080021713.6A patent/CN102427742B/zh active Active
- 2010-05-17 DK DK10725969.9T patent/DK2432338T3/da active
- 2010-05-17 SI SI201030713T patent/SI2432338T1/sl unknown
- 2010-05-17 ES ES10725969.9T patent/ES2512017T3/es active Active
- 2010-05-17 AU AU2010251445A patent/AU2010251445B2/en not_active Ceased
- 2010-05-17 MX MX2011012454A patent/MX2011012454A/es active IP Right Grant
- 2010-05-17 RS RSP20140483 patent/RS53576B1/en unknown
- 2010-05-18 US US12/782,443 patent/US20100288293A1/en not_active Abandoned
-
2011
- 2011-11-29 CO CO11163916A patent/CO6390089A2/es active IP Right Grant
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2012
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Also Published As
Publication number | Publication date |
---|---|
RS53576B1 (en) | 2015-02-27 |
ES2512017T3 (es) | 2014-10-23 |
PT2432338E (pt) | 2014-10-03 |
MY154297A (en) | 2015-05-29 |
WO2010133334A1 (en) | 2010-11-25 |
TWI513414B (zh) | 2015-12-21 |
JP2012527221A (ja) | 2012-11-08 |
JP5710601B2 (ja) | 2015-04-30 |
PL2432338T3 (pl) | 2014-12-31 |
MX2011012454A (es) | 2011-12-16 |
HK1165233A1 (en) | 2012-10-05 |
CN102427742A (zh) | 2012-04-25 |
EP2253231A1 (de) | 2010-11-24 |
SI2432338T1 (sl) | 2014-09-30 |
RU2524898C2 (ru) | 2014-08-10 |
CN102427742B (zh) | 2014-12-31 |
SG175910A1 (en) | 2011-12-29 |
US20100288293A1 (en) | 2010-11-18 |
RU2011151720A (ru) | 2013-06-27 |
CO6390089A2 (es) | 2012-02-29 |
AU2010251445A1 (en) | 2012-01-12 |
EP2432338A1 (de) | 2012-03-28 |
BRPI1013065B1 (pt) | 2023-11-14 |
AR079391A1 (es) | 2012-01-25 |
TW201103449A (en) | 2011-02-01 |
BRPI1013065A2 (pt) | 2016-04-05 |
AU2010251445B2 (en) | 2015-07-02 |
DK2432338T3 (da) | 2014-09-08 |
UA103925C2 (en) | 2013-12-10 |
KR20120042761A (ko) | 2012-05-03 |
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