EP2549896B1 - Tobacco smoke filter - Google Patents
Tobacco smoke filter Download PDFInfo
- Publication number
- EP2549896B1 EP2549896B1 EP11712652.4A EP11712652A EP2549896B1 EP 2549896 B1 EP2549896 B1 EP 2549896B1 EP 11712652 A EP11712652 A EP 11712652A EP 2549896 B1 EP2549896 B1 EP 2549896B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- filter
- additive
- core
- tobacco smoke
- around
- 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.)
- Not-in-force
Links
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
- A24D3/04—Tobacco smoke filters characterised by their shape or structure
- A24D3/048—Tobacco smoke filters characterised by their shape or structure containing additives
-
- 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
- A24D3/06—Use of materials for tobacco smoke filters
- A24D3/061—Use of materials for tobacco smoke filters containing additives entrapped within capsules, sponge-like material or the like, for further release upon smoking
-
- 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
- A24D3/0291—Manufacture of tobacco smoke filters for filters with special features for hollow tipped filters, e.g. recess 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
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/06—Use of materials for tobacco smoke filters
- A24D3/062—Use of materials for tobacco smoke filters characterised by structural features
- A24D3/063—Use of materials for tobacco smoke filters characterised by structural features of the fibers
-
- 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
- A24D3/06—Use of materials for tobacco smoke filters
- A24D3/08—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent
- A24D3/10—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent of cellulose or cellulose derivatives
Definitions
- the present invention relates to filters and filter elements for smoking articles such as cigarettes.
- Recess filters are well known in the tobacco industry and provide a unique end appearance for cigarettes. They are typically manufactured by wrapping a continuous stream of filter segments at spaced intervals in a relatively stiff plug wrap paper. By cutting the filter stream in a region where no filter segment (element) is present, a recess filter can be obtained - the stiff plugwrap paper providing sufficient rigidity to enable the final cigarette to be manufactured and used without crushing the exposed paper end of the filter.
- Recess filters can incorporate one, two or more filter segments. If it is desired to incorporate activated carbon or other particulate additive within the filter, it has been necessary to use at least two segments - the segment closest to the mouth end generally comprising cellulose acetate so as to present a plain white end (within the recess, or cavity) to the smoker and the segment closest to the tobacco column typically comprising carbon (or other) granules interspersed within a fibrous matrix.
- the requirement to use at least two segments in order to incorporate particulate additive into a recess filter increases the complexity and cost of manufacture of carbon recess filters. Further, there are implications for e.g. a conventional two segment superslim (e.g.
- a tobacco smoke filter comprising an outer wrapper engaged around a single longitudinal extending core of tobacco smoke filtering material, wherein a first end of the outer wrapper is substantially flush with a first end of the core around which it is engaged, and a second end of the outer wrapper extends beyond a second end of the core around which is engaged, to define a (e.g. tubular) cavity at the second end of the filter; the filter (or filter element) further comprising an additive (e.g. a particulate additive) distanced from the second end of the outer wrapper and/or core.
- the radially inner face of the outer wrapper which extends beyond the second end of the core around which is engaged may define (e.g. with the second end of the longitudinally extending core) a cavity or recess, e.g. a tubular cavity/recess, at the second end of the recess filter.
- the particulate additive is distanced from the second end of the wrapper and/or core such that it is not visible from the second end of the wrapper and/or core.
- the single longitudinally extending core of tobacco smoke filtering material comprises a rod shaped core of tobacco smoke filtering material having fully enclosed (e.g. embedded) therewithin a (or at least one) pocket of additive (e.g. particulate additive).
- the rod shaped core of tobacco smoke filtering material may optionally have an additional wrapper (e.g. porous or non porous) engaged around the rod shaped core.
- the provision of the fully enclosed pocket of additive within the core of the tobacco smoke filtering material has the effect that the additive is distanced from the second end of the core (because there is tobacco smoke filtering material between the pocket of additive and the end of the core).
- the single longitudinally extending core of tobacco smoke filtering material may have fully enclosed (e.g. embedded) therewithin a single pocket of additive (e.g. particulate additive) close to the first end (e.g. the tobacco end in a filter cigarette) and remote from the second end (e.g. the buccal or mouth end).
- the single longitudinally extending core of tobacco smoke filtering material may have fully enclosed (e.g. embedded) therewithin a single pocket of additive (e.g. particulate additive) positioned equidistantly between the first end of the core (e.g. the tobacco end in a filter cigarette) and the second end of the core (e.g. the end of the core closest to the buccal or mouth end in a filter cigarette).
- the single longitudinally extending core of tobacco smoke filtering material may have fully enclosed therewithin one or more (e.g. two, three, four) separate pockets of additive (e.g. particulate additive).
- the fully enclosed (e.g. embedded) pockets of additive may taper towards one or both ends - e.g. may be of a generally ellipsoidal configuration. If there is more than one pocket of additive, these may have even longitudinal spacing. Other pocket dispositions are possible - e.g. relatively close longitudinal spacing alternating with longer spacing - it being possible to achieve this by appropriate adjustment of the manufacturing process.
- the single longitudinally extending core of tobacco smoke filtering material comprising a rod shaped core of tobacco smoke filtering material having fully enclosed (e.g. embedded) therewithin a (or at least one) pocket of additive (e.g. particulate additive) may be manufactured, for example, by the methods and apparatus disclosed in WO 2006/059134 .
- US3991773 discloses a recess filter which includes an additive located in a chamber between two sections of filter material.
- WO2008/074977 discloses a multi-segment core made of two separate filtering elements.
- WO2009/098462 relates to a tobacco smoke filter or filter element comprising a longitudinally extending core of tobacco smoke filtering material having fully enclosed therewithin at least one pocket of a first additive; and a wrapper engaged around the core, the wrapper having a second additive adhered to one or more portion(s) of the radially inner face thereof with said wrapper being free of additive around its circumference at one end.
- a tobacco smoke filter comprising an outer wrapper engaged around a single longitudinal extending core of tobacco smoke filtering material; wherein the single longitudinal extending core of tobacco smoke filtering material comprises a rod shaped core of tobacco smoke filtering material having fully enclosed (e.g. embedded) therewithin a (or at least one) pocket of additive (e.g. particulate additive); wherein a first end of the outer wrapper is substantially flush with a first end of the core around which it is engaged, and a second end of the outer wrapper extends beyond a second end of the core around which is engaged to define a cavity (recess) at the second end of the filter.
- additive e.g. particulate additive
- the rod shaped core of tobacco smoke filtering material may optionally have an additional wrapper engaged around the rod shaped core.
- the radially inner face of the outer wrapper which extends beyond the second end of the core around which is engaged may define (e.g. with the second end of the longitudinally extending core) a cavity or recess, e.g. a tubular cavity/recess, at the second end of the filter.
- the single longitudinally extending core of tobacco smoke filtering material comprises a rod shaped core of tobacco smoke filtering material and an additive (e.g. particulate additive) bearing wrapper engaged around the rod shaped core, the additive bearing wrapper having additive (e.g. particulate additive) adhered to one or more portion(s) of the radially inner face thereof with said additive bearing wrapper being free of additive around its circumference at the second end of the core.
- additive e.g. particulate additive
- the additive bearing wrapper is free of additive around its circumference at both first and second ends of the core.
- the longitudinally extending core of tobacco smoke filtering material comprising a rod shaped core of tobacco smoke filtering material and an additive (e.g. particulate additive) bearing wrapper engaged around the rod shaped core, may be a filter element as disclosed in GB 2261152 .
- the additive bearing wrapper may be porous or non porous.
- a tobacco smoke filter comprising an outer wrapper engaged around a single longitudinal extending core of tobacco smoke filtering material; wherein a first end of the outer wrapper is substantially flush with a first end of the core around which it is engaged, and a second end of the outer wrapper extends beyond a second end of the core around which is engaged to define a (e.g. tubular) cavity at the second end of the filter;
- the single longitudinally extending core of tobacco smoke filtering material comprising a rod shaped core of tobacco smoke filtering material and an additive (e.g.
- particulate additive bearing wrapper engaged around the rod shaped core, the additive bearing wrapper having additive adhered to one or more portion(s) of the radially inner face thereof with said additive bearing wrapper being free of additive around its circumference at the second end of the core.
- the radially inner face of the outer wrapper which extends beyond the second end of the core around which is engaged may define (e.g. with the second end of the longitudinally extending core) a cavity or recess, e.g. a tubular cavity/recess, at the second end of the filter.
- the outer wrapper may have additive (e.g. a particulate additive) adhered to one or more portion(s) of the radially inner face thereof with said outer wrapper being free of the additive around its circumference at the second end of the wrapper.
- the outer wrapper may be free of additive in a region extending from the second end of the wrapper (towards the first end), the region extending at least up to, and preferably further than, the distance by which the second end of the wrapper extends beyond the second end of the core around which is engaged to define the cavity.
- the inner face of the wrapper which extends beyond the second end of the core around which it is engaged to define the cavity at the second end of the filter is therefore free of additive around its circumference, so that no additive is visible on the inner face of the walls of the cavity.
- 'monocarbon' filters i.e. filters incorporating a single longitudinally extending core of filtering material and additive (e.g. carbon) that have at least one end free of additive and e.g. which can be manufactured in a one-pass process (including the 'Active Patch' filter, as disclosed in, for example, GB 2261152 , and the 'Smooth Core' filter, as disclosed in, for example, WO 2006/059134 ) - may effectively and advantageously be incorporated into a recess filter, according to aspects of the present invention.
- additive e.g. carbon
- the claimed filters may provide improved sensory characteristics, because it is possible to exercise greater control over the contact of the smoke stream with the carbon in the filter (e.g. by controlling the location of the carbon within a central 'pod' or pocket in a 'Smooth Core' filter, or on the periphery of the plugwrap in an 'Active Patch' filter) and then allowing the smoke streams to circulate and mingle within the recess prior to entering the smoker's mouth and impinging on their palate.
- the use, as a "base rod" within a recess filter, of a single longitudinally extending core of filtering material having an additive-free end, can considerably reduce the complexity and cost of manufacture of recess filters containing an additive - e.g. carbon recess filters. This is because there is the need to only cut and align a single filter component rather than two or more segments as with conventional carbon recess filters.
- a rod shaped core of tobacco smoke filtering material and an additive (e.g. particulate additive) bearing wrapper engaged around the rod shaped core in a superslim recess filter may enable higher carbon weights to be used than for conventional superslim carbon recess filters, while maintaining a satisfactory pressure drop and smoking experience.
- the filtering material may be for example any of those materials (usually filamentary, fibrous, web or extruded) conventionally employed for tobacco smoke filter manufacture.
- the filtering material may be natural or synthetic filamentary tow, e.g. of cotton or plastics such as polyethylene or polypropylene, or cellulose acetate filamentary tow. It may be, for example, natural or synthetic staple fibres, cotton wool, web material such as paper (usually creped) and synthetic non-wovens, and extruded material (e.g. starch, synthetic foams).
- the additive may be a particulate additive.
- the particulate additive may any particulate additive suitable for use in a tobacco smoke filter - e.g. activated carbon, zeolite, ion exchange resin (e.g. a weakly basic anion exchange resin), sepiolite, silica gel, alumina, molecular sieves, carbonaceous polymer resins and diatomaceous earths.
- the particulate additive may be a mixture of two, or more, materials.
- the additive may include a flavourant - e.g. menthol - e.g. the additive may be sepiolite granules to which menthol has been applied. If the longitudinally extending extending core of tobacco smoke filtering includes fully enclosed (e.g.
- the additive may be a particulate additive such as activated carbon (see above), which is for example enclosed within the filtering material as a discrete pocket or pod of particles of particulate additive which is substantially separate from, and fully enclosed within, the filtering material.
- the fully enclosed (e.g. embedded) pocket(s) of additive may be a frangible capsule or capsules, or one or a plurality of frangible microcapsules.
- the capsule(s) or microcapsule(s) may contain a variety of media - e.g. a flavourant and/or a liquid, solid or other material e.g. to aid smoke filtration.
- the use of capsules or microcapsules is well known in the art.
- the tobacco smoke filter may be of length 15 to 40 mm, e.g. 17 to 35 mm, e.g. 20 to 30 mm.
- the recess section of the filter tip (that is, the length by which the second end of the outer wrapper extends beyond the second end of the core around which is engaged to define the cavity at the second (e.g. mouth) end of the filter) may have a length 3 to 10 mm, and is most preferably of length 4 to 6 mm.
- the single longitudinally extending core of tobacco smoke may be of length 10 to 30 mm, e.g. 14 to 27 mm, e.g. 17 to 25 mm.
- the tobacco smoke filter may be of circumference 14 to 28 mm, for example 16 to 26 mm, for example 16 to 17 mm or 24 to 25 mm.
- the final filter cigarette may be ventilated or non-ventilated and of any circumference range traditionally used in smoking products (e.g. c. 14 to c. 28 mm circumference).
- the outer wrapper may be paper, e.g. plugwrap paper, e.g. stiff plugwrap paper.
- the outer wrapper may be porous or non porous.
- the outer wrapper may be a paper of basis weight from about 40 to about 120 g/m 2 .
- the outer wrapper may be of basis weight from about 80 to about 120 g/m 2 , for example a basis weight of around 100 g/m 2 , e.g. for a recess filter of standard (c. 24-25 mm) circumference.
- the outer wrapper may be a plugwrap paper of a lower basis weight, e.g. around 50 g/m 2 .
- the outer wrapper of basis weight from about 40 to about 120 g/m 2 can overcome a potential disadvantage associated with 'Active Patch' filters, that it can be possible to feel the presence of carbon granules adhered to the inner surface of the additive bearing wrapper (of e.g. plugwrap paper) when handling the finished filter or cigarette.
- the defined filters e.g. including outer wrapper of basis weight from about 40 to about 120 g/m 2
- a filter of the invention (or a filter which includes a filter element of the invention) is joined to a wrapped tobacco rod with one end of the filter towards the tobacco.
- the filter may, for example, be joined to the wrapped tobacco rod by ring tipping [which engages around just the adjacent ends of the (wrapped) filter and rod to leave much of the filter wrap exposed] or, more preferably, by a full tipping overwrap (which engages around the full filter length and the adjacent end of the tobacco rod).
- the cigarette may include a tipping overwrap (of e.g. a stiff tipping paper) in conjunction with the outer wrapper of the filter to give the desired (e.g. further increased) stiffness to the final recess filter cigarette.
- Any filter or filter cigarette according to the invention may be unventilated, or may be ventilated by methods well known in the art, e.g. by use of a pre-perforated or air-permeable wrapper (plugwrap), and/or laser perforation of wrapper (plugwrap) and tipping overwrap.
- a ventilating full tipping overwrap may likewise be inherently air-permeable or provided with ventilation holes, and in ventilated products where both filter plugwrap and tipping overwrap are present ventilation through the overwrap will usually be in register with that through the plugwrap. Ventilation holes through a filter plugwrap, or through a tipping overwrap, or through both simultaneously, may be made by laser perforation during filter or filter cigarette production.
- Ventilation in a filter or filter cigarette according to the invention is localised longitudinally of the product, this localisation is preferably to one or two regions selected from upstream of, downstream of, and in register with the or a pocket (or patch or portion) of first additive, depending upon the ventilation and filtering performances required. Ventilation upstream of and/or in register with a pocket of first additive is frequently preferred. There may be ventilation between portions (or pockets or patches) of second additive when two or more are present.
- a multiple rod comprising a plurality (e.g. 2, 4, 6 etc.) of filters (or filter elements) as described above and/or herein integrally joined end-to-end in a mirror image relationship.
- FIGURE 1 schematically illustrates a recess filter according to an embodiment of the invention
- FIGURE 2 schematically illustrates a recess filter according to a second embodiment of the invention
- FIGURE 3 schematically illustrates a recess filter according to a further embodiment of the invention
- FIGURE 4 schematically illustrates a recess filter according to a different further embodiment of the invention
- FIGURE 5 schematically illustrates a recess filter according to a different still further embodiment of the invention.
- Figure 5 shows a filter similar to that of Figure 4 , and the reference numerals are the same as those for the embodiment of Fig 5 .
- the pocket 199 is located centrally between the second (mouth) and first (tobacco) ends of core 107; again, it will be appreciated that core 107 has both ends free of additive (because it the additive is fully embedded within the core) and therefore the additive is invisible from the second or mouth end of the filter.
- Figures 4 and 5 demonstrate that the position and size/weight of the granular pocket 199 can be varied to suit different cigarette design requirements.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Cigarettes, Filters, And Manufacturing Of Filters (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL11712652T PL2549896T3 (pl) | 2010-03-24 | 2011-03-24 | Filtr dymu tytoniowego |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB1004976.5A GB201004976D0 (en) | 2010-03-24 | 2010-03-24 | Tobacco smoke filter |
PCT/GB2011/000421 WO2011117584A1 (en) | 2010-03-24 | 2011-03-24 | Tobacco smoke filter |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2549896A1 EP2549896A1 (en) | 2013-01-30 |
EP2549896B1 true EP2549896B1 (en) | 2019-07-17 |
Family
ID=42228292
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11712652.4A Not-in-force EP2549896B1 (en) | 2010-03-24 | 2011-03-24 | Tobacco smoke filter |
Country Status (11)
Country | Link |
---|---|
EP (1) | EP2549896B1 (ja) |
JP (2) | JP2013521820A (ja) |
KR (1) | KR20130007612A (ja) |
CN (2) | CN102905568A (ja) |
GB (1) | GB201004976D0 (ja) |
HU (1) | HUE045493T2 (ja) |
LT (1) | LT2549896T (ja) |
PL (1) | PL2549896T3 (ja) |
RU (1) | RU2012142714A (ja) |
UA (1) | UA110107C2 (ja) |
WO (1) | WO2011117584A1 (ja) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2536954T3 (es) * | 2011-10-21 | 2015-06-01 | Philip Morris Products S.A. | Artículo para fumar que tiene una cavidad de extremo de boca con marcas |
GB201211523D0 (en) * | 2012-06-27 | 2012-08-08 | Filtrona Filter Prod Dev Co | Tobacco smoke filter |
GB201213786D0 (en) * | 2012-08-01 | 2012-09-12 | Filtrona Filter Prod Dev Co | Tobacco smoke filter |
GB201219540D0 (en) | 2012-10-31 | 2012-12-12 | British American Tobacco Co | A filter for a smoking article |
KR20200044129A (ko) * | 2015-08-28 | 2020-04-28 | 제이티 인터내셔널 소시에떼 아노님 | 흡연 물품 |
EA036041B1 (ru) | 2015-08-28 | 2020-09-17 | Джт Интернэшнл С.А. | Курительное изделие |
EP3694345B1 (en) * | 2017-10-13 | 2022-03-02 | Philip Morris Products S.A. | Aerosol generating article having a cavity with particulate aerosol altering material |
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US2755206A (en) * | 1953-08-17 | 1956-07-17 | Edward L Chapman | Tobacco smoking article |
US3884246A (en) * | 1973-01-16 | 1975-05-20 | Eric E Walker | Optional dry or liquid filter |
US3991773A (en) * | 1973-01-16 | 1976-11-16 | Walker Eric E | Optional dry or liquid filter |
US4881557A (en) * | 1988-04-20 | 1989-11-21 | P. H. Glatfelter Company | Smoking article wrapper and method of making same |
US5269329A (en) * | 1990-07-09 | 1993-12-14 | Kimberly-Clark Corporation | Method of producing tobacco flavored cigarette filter |
AU658372B2 (en) * | 1990-11-19 | 1995-04-13 | Cigarette Components Limited | Smoke filter containing particulate smoke modifying additive |
GB9121782D0 (en) | 1991-10-14 | 1991-11-27 | Cigarette Components Ltd | Cigarette filter containing particulate smoke modifying additive |
JP2000004865A (ja) * | 1998-06-25 | 2000-01-11 | Yasuyuki Moriyama | シガレットの付属消火装置 |
JP2003189840A (ja) * | 2001-12-27 | 2003-07-08 | Japan Tobacco Inc | タバコ副流煙量が低減された喫煙物品 |
TWI324049B (en) * | 2002-01-08 | 2010-05-01 | Japan Tobacco Inc | Smoking filter and smoking article |
JP2004229541A (ja) * | 2003-01-29 | 2004-08-19 | Japan Tobacco Inc | シガレットの製造方法 |
GB0426615D0 (en) * | 2004-12-03 | 2005-01-05 | Filtrona Suisse Sa | Tobacco smoke filter |
UA87192C2 (en) * | 2005-02-04 | 2009-06-25 | Филип Моррис Продактс С.А. | Cigarette |
US7578298B2 (en) * | 2005-02-04 | 2009-08-25 | Philip Morris Usa Inc. | Flavor capsule for enhanced flavor delivery in cigarettes |
US7878962B2 (en) * | 2005-05-03 | 2011-02-01 | Philip Morris Usa Inc. | Cigarettes and filter subassemblies with squeezable flavor capsule and methods of manufacture |
GB0619958D0 (en) * | 2006-10-09 | 2006-11-15 | Filtrona Int Ltd | Tobacco smoke filter |
GB0625818D0 (en) * | 2006-12-21 | 2007-02-07 | British American Tobacco Co | Smoking article filter |
CN101049187B (zh) * | 2007-05-18 | 2012-05-16 | 云南烟草科学研究院 | 含有添加剂的双层成型纸复合滤嘴 |
US8113215B2 (en) * | 2007-06-21 | 2012-02-14 | Philip Morris Usa Inc. | Smoking article filter having liquid additive containing tubes therein |
EP2025251A1 (en) * | 2007-08-17 | 2009-02-18 | Philip Morris Products S.A. | Multi-component filter for a smoking article |
CN101896082B (zh) * | 2007-12-14 | 2013-10-02 | 日本烟草产业株式会社 | 香烟过滤嘴及带有过滤嘴的香烟 |
WO2009084458A1 (ja) * | 2007-12-27 | 2009-07-09 | Japan Tobacco Inc. | 炭素質加熱源を備えた非燃焼型喫煙物品 |
CN101969797A (zh) * | 2008-02-07 | 2011-02-09 | 菲尔特隆纳国际有限公司 | 烟草烟雾过滤嘴 |
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2010
- 2010-03-24 GB GBGB1004976.5A patent/GB201004976D0/en not_active Ceased
-
2011
- 2011-03-24 LT LTEP11712652.4T patent/LT2549896T/lt unknown
- 2011-03-24 KR KR1020127026952A patent/KR20130007612A/ko not_active Application Discontinuation
- 2011-03-24 PL PL11712652T patent/PL2549896T3/pl unknown
- 2011-03-24 WO PCT/GB2011/000421 patent/WO2011117584A1/en active Application Filing
- 2011-03-24 EP EP11712652.4A patent/EP2549896B1/en not_active Not-in-force
- 2011-03-24 HU HUE11712652A patent/HUE045493T2/hu unknown
- 2011-03-24 CN CN2011800155242A patent/CN102905568A/zh active Pending
- 2011-03-24 UA UAA201211499A patent/UA110107C2/uk unknown
- 2011-03-24 RU RU2012142714/12A patent/RU2012142714A/ru unknown
- 2011-03-24 JP JP2013500578A patent/JP2013521820A/ja not_active Withdrawn
- 2011-03-24 CN CN201510804288.2A patent/CN105476064A/zh active Pending
-
2016
- 2016-01-15 JP JP2016006257A patent/JP2016105718A/ja active Pending
Non-Patent Citations (1)
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Also Published As
Publication number | Publication date |
---|---|
JP2013521820A (ja) | 2013-06-13 |
GB201004976D0 (en) | 2010-05-12 |
UA110107C2 (uk) | 2015-11-25 |
KR20130007612A (ko) | 2013-01-18 |
PL2549896T3 (pl) | 2020-03-31 |
WO2011117584A1 (en) | 2011-09-29 |
LT2549896T (lt) | 2019-08-26 |
CN102905568A (zh) | 2013-01-30 |
RU2012142714A (ru) | 2014-04-27 |
EP2549896A1 (en) | 2013-01-30 |
CN105476064A (zh) | 2016-04-13 |
HUE045493T2 (hu) | 2019-12-30 |
JP2016105718A (ja) | 2016-06-16 |
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