EP2323506B2 - Vorrichtung und damit in zusammenhang stehendes verfahren zur bildung einer filterkomponente eines rauchartikels, und daraus hergestellter rauchartikel - Google Patents

Vorrichtung und damit in zusammenhang stehendes verfahren zur bildung einer filterkomponente eines rauchartikels, und daraus hergestellter rauchartikel Download PDF

Info

Publication number
EP2323506B2
EP2323506B2 EP09751566.2A EP09751566A EP2323506B2 EP 2323506 B2 EP2323506 B2 EP 2323506B2 EP 09751566 A EP09751566 A EP 09751566A EP 2323506 B2 EP2323506 B2 EP 2323506B2
Authority
EP
European Patent Office
Prior art keywords
adsorbent material
adsorbent
filter
rod
carrier
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
Application number
EP09751566.2A
Other languages
English (en)
French (fr)
Other versions
EP2323506B1 (de
EP2323506A2 (de
Inventor
Norman Philip Andresen
Michael Francis Dube
Barbara Walker Arzonico
Ronald Keith Hutchens
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RJ Reynolds Tobacco Co
Original Assignee
RJ Reynolds Tobacco Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=40983562&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2323506(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from US12/124,891 external-priority patent/US8079369B2/en
Priority claimed from US12/124,874 external-priority patent/US8375958B2/en
Priority claimed from US12/392,725 external-priority patent/US8613284B2/en
Application filed by RJ Reynolds Tobacco Co filed Critical RJ Reynolds Tobacco Co
Priority to EP12181299.4A priority Critical patent/EP2537427B1/de
Publication of EP2323506A2 publication Critical patent/EP2323506A2/de
Publication of EP2323506B1 publication Critical patent/EP2323506B1/de
Application granted granted Critical
Publication of EP2323506B2 publication Critical patent/EP2323506B2/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • A24D3/02—Manufacture of tobacco smoke filters
    • A24D3/0204—Preliminary operations before the filter rod forming process, e.g. crimping, blooming
    • A24D3/0212—Applying additives to filter materials
    • 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
    • A24D3/0204—Preliminary operations before the filter rod forming process, e.g. crimping, blooming
    • A24D3/0212—Applying additives to filter materials
    • A24D3/0216—Applying additives to filter materials the additive being in the form of capsules, beads or the like
    • 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
    • A24D3/0204—Preliminary operations before the filter rod forming process, e.g. crimping, blooming
    • A24D3/0212—Applying additives to filter materials
    • A24D3/0225—Applying additives to filter materials with solid additives, e.g. incorporation of a granular product
    • 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
    • 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
    • A24D3/067—Use of materials for tobacco smoke filters characterised by functional properties
    • A24D3/068—Biodegradable or disintegrable
    • 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
    • A24D3/16—Use of materials for tobacco smoke filters of inorganic materials
    • 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
    • A24D3/16—Use of materials for tobacco smoke filters of inorganic materials
    • A24D3/163—Carbon

Definitions

  • Embodiments of the present invention relate to the formation of tobacco products, such as smoking articles (e.g., cigarettes), and more particularly, to apparatuses and associated methods for inserting an adsorbent material into a cigarette filter.
  • smoking articles e.g., cigarettes
  • smokable material such as shredded tobacco (e.g., in cut filler form), surrounded by a paper wrapper, thereby forming a so-called “smokable rod” or "tobacco rod.”
  • a cigarette has a cylindrical filter element aligned in an end-to-end relationship with the tobacco rod.
  • a filter element comprises plasticized cellulose acetate tow circumscribed by a paper material known as "plug wrap.”
  • Certain filter elements can incorporate polyhydric alcohols.
  • the filter element is attached to one end of the tobacco rod using a circumscribing wrapping material known as "tipping paper.”
  • tipping paper a circumscribing wrapping material
  • Certain cigarettes incorporate filter elements having adsorbent materials dispersed therein, such as activated carbon or charcoal materials (collectively, carbonaceous materials) in particulate or granular form (i.e., powder).
  • adsorbent materials such as activated carbon or charcoal materials (collectively, carbonaceous materials) in particulate or granular form (i.e., powder).
  • an exemplary cigarette filter can possess multiple segments, and at least one of those segments can comprise particles of high carbon-content materials.
  • filters incorporating charcoal particles or activated carbon types of materials are set forth in U.S. Pat. Nos. 2,881,770 to Touey ; 3,101,723 to Seligman et al. ; 3,236,244 to Irby et al. ; 3,311,519 to Touey et al.
  • such carbonaceous material types are typically in the form of particles or granules when incorporated into the filter elements.
  • granules of carbonaceous material can be incorporated into "dalmation” types of filter regions using the general types of techniques used for traditional dalmation filter manufacture. Techniques for production of dalmation filters are known, and representative dalmation filters have been provided commercially by Filtrona Greensboro Inc.
  • granules of carbonaceous material can be incorporated into "cavity” types of filter regions using the general types of techniques used for traditional "cavity” filter manufacture.
  • the continuous supply of filter material is formed, for example, by a rod-forming unit into a continuous cylindrical rod member.
  • the carrier material carrying the adsorbent material is inserted by an insertion unit into the rod member.
  • the continuous rod may then be subdivided at predetermined intervals by a rod-dividing unit so as to form a plurality of filter rods or rod portions or filter elements such that each rod portion includes at least a portion of the adsorbent material.
  • a method of forming a cigarette filter rod member comprises forming a continuous supply of a filter material into a continuous cylindrical rod member, and inserting an adsorbent material carried by a carrier material into the rod member such that the adsorbent material is disposed within the rod member.
  • Such a method may further comprise dividing the rod member into a plurality of rod portions along the longitudinal axis thereof such that each rod portion includes at least a portion of the adsorbent material.
  • a cigarette filter can comprise at least one filter segment having one or more composite fiber structures imbedded therein, the composite fiberstructure comprising a carrier fiber and an adsorbent fiber (e.g., a carbonaceous fiber), the adsorbent fiber comprising an adsorbent material.
  • adsorbent fiber e.g., a carbonaceous fiber
  • Exemplary carbonaceous fibers can be prepared by carbonization of a precursor fiber, such as phenolic fibers, cellulosic fibers, rayon fibers, acrylic fibers, and pitch fibers.
  • the filter comprises one or more segments of fibrous tow material, such as cellulose acetate tow.
  • the composite fiber structure can comprise multiple carrier fibers or multiple adsorbent fibers.
  • One or both of the carrier fiber and adsorbent fiber can be in the form of a yarn.
  • the entire composite fiber structure can also be in the form of a yarn.
  • the carrier fiber acts as a carrier for the adsorbent fiber, such as by enwrapping the adsorbent fiber around the carrier fiber.
  • the additive can be carried by, or associated with, the degradable fiber using a variety of techniques, such as by absorption of the additive into the fiber structure, coating of the additive onto the fiber structure, adherence of a solid additive onto the surface of the fiber, or wrapping of an additive in the form of a fiber (e.g., a carbonaceous fiber) around the degradable fiber.
  • a fiber e.g., a carbonaceous fiber
  • Embodiments of the present invention thus provide significant advantages as disclosed herein in further detail.
  • FIG. 1 there is shown a smoking article 10 in the form of a cigarette and possessing certain representative components of a smoking article produced or formed by the present invention.
  • the cigarette 10 includes a generally cylindrical rod 12 of a charge or roll of smokable filler material contained in a circumscribing wrapping material 16.
  • the rod 12 is conventionally referred to as a "tobacco rod.”
  • the ends of the tobacco rod 12 are open to expose the smokable filler material.
  • the cigarette 10 is shown as having one optional band 22 (e.g., a printed coating including a film-forming agent, such as starch, ethylcellulose, or sodium alginate) applied to the wrapping material 16 , and that band circumscribes the cigarette rod in a direction transverse to the longitudinal axis of the cigarette. That is, the band 22 provides a cross-directional region relative to the longitudinal axis of the cigarette.
  • the band 22 can be printed on the inner surface of the wrapping material (i.e., facing the smokable filler material), or less preferably, on the outer surface of the wrapping material.
  • the cigarette can possess a wrapping material having one optional band, the cigarette also can possess wrapping material having further optional spaced bands numbering two, three, or more.
  • At one end of the tobacco rod 12 is the lighting end 18, and at the mouth end 20 is positioned a filter element 26.
  • the filter element 26 positioned adjacent one end of the tobacco rod 12 such that the filter element and tobacco rod are axially aligned in an end-to-end relationship, preferably abutting one another.
  • Filter element 26 may have a generally cylindrical shape, and the diameter thereof may be essentially equal to the diameter of the tobacco rod. The ends of the filter element 26 permit the passage of air and smoke therethrough.
  • the adsorbent material 50 had been inserted while in a loose particulate form, such as a powder or slurry. Further, within the filter material 40 of the first segment may also be optionally dispersed a plurality of particles 52 or otherwise breakable or rupturable capsules comprising a flavoring agent.
  • a carbonaceous material is used as the adsorbent material 50 , at least a portion of the carbonaceous material, and typically virtually all of the carbonaceous material, is in intimate contact with an effective amount of a mixture of polyol ester (e.g., triacetin) and polyol (e.g., propylene glycol).
  • the filter element also can be incorporate other components that have the ability to alter the properties of the mainstream smoke that passes throughout the filter element. See, for example, U.S. Pat. Application Publication Nos. 2004/0237984 to Figlar et al. ; 2005/0268925 to Schluter et al .; 2006/0130861 to Luan et al. ; and 2006/0174899 to Luan et al. .
  • the filter element 26 is circumscribed along its outer circumference or longitudinal periphery by a layer of outer plug wrap 28.
  • the outer plug wrap 28 overlies each of the first filter segment 32 and the second filter segment 36, so as to provide a combined, two-segment filter element.
  • the filter element 26 is attached to the tobacco rod 12 using tipping material 46 (e.g., essentially air impermeable tipping paper), that circumscribes both the entire length of the filter element 26 and an adjacent region of the tobacco rod 12.
  • tipping material 46 e.g., essentially air impermeable tipping paper
  • the inner surface of the tipping material 46 is fixedly secured to the outer surface of the plug wrap 28 and the outer surface of the wrapping material 16 of the tobacco rod, using a suitable adhesive; and hence, the filter element and the tobacco rod are connected to one another. See also the tipping materials and configurations set forth in U.S. Pat. Publication No. 2008/0029111 to Dube et al. .
  • a ventilated or air diluted smoking article can be provided with an optional air dilution mechanisms, such as a series of perforations 30, each of which extend through the tipping material and plug wrap.
  • the optional perforations 30, shown in FIG. 1 can be made by various techniques known to those of ordinary skill In the art, such as laser perforation techniques.
  • so-called off-line air dilution techniques can be used (e.g., through the use of porous paper plug wrap and pre-perforated tipping paper).
  • the amount or degree of air dilution or ventilation can vary.
  • the amount of air dilution for an air diluted cigarette is greater than about 10 percent, generally is greater than about 20 percent, often is greater than about 30 percent, and sometimes is greater than about 40 percent.
  • the upper level for air dilution for an air diluted cigarette is less than about 80 percent, and often is less than about 70 percent.
  • air dilution is the ratio (expressed as a percentage) of the volume of air drawn through the air dilution means to the total volume and air and smoke drawn through the cigarette and exiting the extreme mouth end portion of the cigarette.
  • the smoker lights the lighting end 18 of the cigarette 10 using a match or cigarette lighter.
  • the smokable material 12 begins to burn.
  • the mouth end 20 of the cigarette 10 is placed in the lips of the smoker.
  • Thermal decomposition products e.g., components of tobacco smoke
  • Thermal decomposition products generated by the burning smokable material 12 are drawn through the cigarette 10, through the filter element 26, and into the mouth of the smoker.
  • certain amount of certain gaseouscomponentsofthe mainstream smoke are removed from the mainstream smoke or neutralized by the adsorbent material 50 within the filter element 26.
  • Filters incorporating such adsorbent material 50 have the capability of capturing a wide range of mainstream tobacco smoke vapor phase components. If desired, prior to, during or after the smoking experience, the smoker can optionally squeeze the filter element. As a result, at least a portion of the optional breakable capsules that remain unbroken can be broken, and hence release the particles 52 of flavoring agent contained therein.
  • carbonaceous filter components e.g., activated charcoal particles
  • a representative cigarette 10 can vary.
  • Preferred cigarettes are rod shaped, and can have diameters of about 7.5 mm (e.g., circumferences of about 20 mm to about 27 mm, often about 22.5 mm to about 25 mm); and can have total lengths of about 70 mm to about 120 mm, often about 80 mm to about 100 mm.
  • the length of the filter element 30 can vary. Typical filter elements can have total lengths of about 15 mm to about 40 mm, often about 20 mm to about 35 mm.
  • the downstream or mouth end filter segment often has a length of about 10 mm to about 20 mm; and the upstream or tobacco rod end filter segment often has a length of about 10 mm to about 20 mm.
  • suitable catalytic compounds e.g., for the conversion of carbon monoxide to carbon dioxide, can be incorporated into one or more segments of the filter element 26.
  • exemplary catalysts include noble metals (e.g., silver, gold, platinum), metal oxides, ceramics, and mixtures thereof.
  • one filter element 26 that may be formed in accordance with the present invention comprises multiple, longitudinally-extending segments. Each segment can have varying properties and may include various materials capable of filtration or adsorption of particulate matter and/or vapor phase compounds from the mainstream smoke. Typically, the filter element of various aspects of the invention includes 2 to 6 segments, frequently 2 to 4 segments. In some instances, the filter element 26 may include a mouth end segment and a tobacco end segment, with the tobacco end segment comprising the dispersed adsorbent material 50 and flavoring agent 52.
  • the filter element may incorporate adsorbent material/particulate 50.
  • adsorbent material 50 may be a material with relatively high surface area capable of adsorbing smoke constituents without a high degree of specificity, or a material that adsorbs certain compounds with a greater degree of specificity, such as an ion exchange resin.
  • exemplary types of adsorbent material may include activated carbon, a molecular sieve (e.g., zeolites and carbon molecular sieves), clay, an ion exchange resin, activated alumina, silica gel, meerschaum, and combinations thereof. Any adsorbent material, or mixture of materials, that has the ability to alter the character or nature of mainstream smoke passing through the filter element may be used.
  • Exemplary ion exchange resins comprise a polymer backbone, such as styrenedivinylbenzene (DVB) copolymers, acrylates, methacrylates, phenol formaldehyde condensates, and epichlorohydrin amine condensates, and a plurality of eledrically charged functional groups attached to the polymer backbone, and can be a weak base anion exchange resin or a strong base anion exchange resin.
  • Commercially available embodiments of such resins include DIAION® ion-exchange resins available from Mitsubishi Chemical Corp.
  • DUOLITE® ion exchange resins available from Rohm and Haas (e.g., DUOLTTE® A7), and XOR-BEX resins available from Dalian Trico Chemical Co. of China.
  • a preferred adsorbent is a carbonaceous material, which is a material that is composed primarily of carbon, and preferred carbonaceous materials are composed of virtually all carbon.
  • carbonaceous materials comprise carbon in amounts of more than about 85 percent, generally more than about 90 percent, often more than about 95 percent, and frequently more than about 98 percent, by weight.
  • the carbonaceous material can have the form of charcoal, but most preferably is an activated carbon material.
  • Activated carbon materials are high surface area materials. Exemplary activated carbon materials have surface areas of more than about 200 m 2 /g, often more than about 1000 m 2 /g, and frequently more than about 1500 m 2 /g, as determined using the Brunaver, Emmet and Teller (BET) method described in J. Amer. Chem.
  • the filter element 26 may incorporate an effective amountof adsorbent material 50, such as an effective amount of activated carbon.
  • the effective amount is an amount that, when incorporated into the filter element 26, provides some desired degree of alteration of the mainstream smoke of a cigarette incorporating that filter element 26.
  • a cigarette filter element incorporating activated carbon particles or granules can act to lower the yield of certain gas phase components of the mainstream smoke passing through that filter element.
  • the amount of carbonaceous material or other adsorbent within the filter element is at least about 20 mg, often at least about 30 mg, and frequently at least about 40 mg, on a dryweight basis.
  • the amount of carbonaceous material or other adsorbent material 50 within the filter element does not exceed about 500 mg, generally does not exceed about 400 mg, often does not exceed about 300 mg, and frequently does not exceed about 200 mg, on a dry weight basis.
  • the carbonaceous materials can be derived from synthetic or natural sources. Materials such as rayon or nylon can be carbonized, followed by treatment with oxygen to provide activated carbonaceous materials. Materials such as wood and coconut shells can be carbonized, followed by treatment with oxygen to provide activated carbonaceous materials.
  • the level of activity of the carbon may vary. Typically, the carbon has an activity of about 60 to about 150 Carbon Tetrachloride Activity (i.e., weight percent pickup of carbon tetrachloride).
  • Preferred carbonaceous materials are coconut shell types of activated carbons available from sources such as Calgon Carbon Corporation, Gowrishankar Chemicals, Carbon Activated Corp. and General Carbon Corp. See, also, for example, Activated Carbon Compendium, Marsh (Ed.) (2001 ), which is incorporated herein by reference.
  • Certain carbonaceous materials can be impregnated with substances, such as transition metals (e.g., silver, gold, copper, platinum, and palladium), nanoparticles, potassium bicarbonate, tobacco extracts, polyethyleneimine, manganese dioxide, eugenol, and 4-ketononanoic acid.
  • the carbon composition may also include one or more fillers, such as semolina.
  • Grape seed extracts may also be incorporated into the filter element 20 as a free radical scavenger.
  • Sintered or foamed carbon materials see, e.g., US Pat. No. 7,049,382 to Haftka et al.
  • gathered webs see, e.g., US Pat. Appl. Pub. Nos. US 2008/0092912 to Robinson et al. and US 2007/0056600 to Coleman, III et al.
  • one aspect of the present disclosure involves engaging the adsorbent material 50 with a carrier material 55 prior to insertion of the resulting assembly into the filter element 26 (or a continuous filter rod before longitudinal severance thereof to form multiple filter elements 26). Selection of a suitable carrier material 55 may facilitate, for example, improved production by more effectively and efficiently inserting the now "captive" adsorbent material 50 into the filter element 26.
  • the carrier material 55 may comprise a matrix material, such as, for example, a polymer material, which may be impregnated with the adsorbent material 50 (i.e., the adsorbent material 50 may be suspended in or otherwise held by the matrix material) such that the adsorbent material 50 may be carried with and by the matrix material into the filter element 26.
  • a matrix material such as, for example, a polymer material, which may be impregnated with the adsorbent material 50 (i.e., the adsorbent material 50 may be suspended in or otherwise held by the matrix material) such that the adsorbent material 50 may be carried with and by the matrix material into the filter element 26.
  • the adsorbent material 50 may engage, contact, or otherwise interact with the continuous elongate structure such that the adsorbent material 50 can be carried into the filter element 26 thereby.
  • the continuous strip may be lengthwise wrapped around the adsorbent material 50 so as to contain the adsorbent material 50 therein (i.e., similar to a "tube") for insertion into the filter element 26.
  • the insertion or incorporation of the carrier material 55 carrying the adsorbent material 50 into the filter element 26 may be accomplished in a "cleaner" and more consistent and efficient manner (i.e., since the adsorbent material 50 is held “captive"), as compared to directing a loose powdered adsorbent material 50, or slurry form thereof, into the filter elements 26 (i.e., less dust, spillage, overflow, contamination, cross-contamination, etc.).
  • Such benefits may, in turn, translate into, for instance, less maintenance, a faster process, higher efficiency and/or more consistent delivery of the adsorbent material 50, and increased safety.
  • the carrier material 55 may be readily configured in any manner suitable for facilitating insertion thereof into individual filter elements 26.
  • a matrix material such as a gel-type substance or otherwise suitable substance may contain, though not necessarily through impregnation, the adsorbent material 50 in a form capable of being incorporated within an individual filter element 26.
  • the carrier material 55 carrying the adsorbent material 50 may comprise a strand, strip, or otherwise elongate structure that is severed to form individual portions capable of being inserted into the filter rod and/or filter element 26.
  • the carrier material 55 may be in the form of a pellet.
  • the pellets may be produced using devices such as the FL-M Series granulator equipment (e.g., FL-M-3) from Vector Corporation and as WP 120V and WP 200VN from Alexanderwerk, Inc.
  • Exemplary compaction devices such as compaction presses, are available as Colton 2216 and Colton 2247 from Vector Corporation and as 1200i, 2200i, 3200, 2090, 3090 and 4090 from Fette Compacting.
  • Devices for providing outer coating layers to compacted pelletized formulations are available as CompuLab 24, CompuLab 36, Accela-Cota 48 and Accela-Cota 60 from Thomas Engineering.
  • the contact of components is such that individual components (e.g., adsorbent material or flavoring agents) may be well embedded in the extrusion matrix or extrudate.
  • individual components e.g., adsorbent material or flavoring agents
  • the moisture content of the carbonaceous material can vary.
  • the moisture content of the carbonaceous material or other adsorbent within the filter element, prior to use of the cigarette incorporating that filter element is less than about 30 percent, often less than about 25 percent, and frequently less than about 20 percent, based on the combined weight of the carbonaceous material and moisture.
  • the moisture content of the carbonaceous material or other adsorbent within the filter element, prior to use of the cigarette incorporating that filter element is greater than about 3 percent, often greater than about 5 percent, and frequently greater than about 8 percent, based on the combined weightof the carbonaceous material and moisture.
  • an optional flavoring agent may also be impregnated or otherwise suspended or included within or on the carrier material 55, in addition to the adsorbent material 50. That is, the carrier material 55 may carry both the adsorbent material 50 and an optional flavoring agent into the filter element 26. As such, the complexity of the formation process for the filter element 26 and/or smoking article may be reduced.
  • the carrier material 55 may comprise a polymer matrix material impregnated with the adsorbent material 50, such as, for example, a carbonaceous material, and an optional flavoring agent.
  • a single insertion device/step may only be needed to insert the adsorbent material 50 and the optional flavoring agent, rather than using multiple insertion devices/ steps to insert the adsorbent material 50 and the optional flavoring agent (i.e., in the form of a rupturable capsule) into the filter element 26.
  • the adsorbent material 50 may be formed as a sphere, pellet, capsule, tube or other structured object, with or without the carrier material 55.
  • the pellets may be manufactured using a wide variety of extrusion techniques.
  • such pellets may be manufactured using co-extrusion techniques (e.g., using a twin screw extruder).
  • a spherical carbon object may be formed so as to be more easily inserted into the filter material (e.g., cellulose acetate tow).
  • one or more spherical carbon objects may be disposed within the filter material of the smoking article.
  • Such objects formed as a sphere, pellet, tube, etc. may provide a concentrated form of the adsorbent material 50 into the filter material.
  • the particles comprising the object may have to be released and/or dispersed into or otherwise exposed to the filter element 26 to have the desired effect.
  • a force physical, sound wave, or otherwise
  • the object is disposed in situ within the filter element 26 to rupture, crack, or otherwise break, degrade, or disintegrate the adsorbent material 50 and/or carrier material 55 comprising the object so as to disperse or otherwise release the adsorbent material 50 into the filter element 26.
  • the size and weight of a capsule may vary. Certain types of capsules are generally spherical in shape. However, suitable capsules may have other types of shapes, such as generally rectilinear, oblong, elliptical, or oval shapes. Exemplary generally spherical capsules have diameters of less than about 3.5 m m, generally less than about 1.5 mm, often less than about 1 mm, and frequently less than about 0.5 mm. For example, several capsules can be employed, and those capsules can be in the range of about 0.25 mm to about 2 mm in diameter.
  • Cigarette rods typically are manufactured using a cigarette making machine, such as a conventional automated cigarette rod making machine.
  • exemplary cigarette rod making machines are of the type commercially available from Molins PLC or Hauni-Werke Korber & Co. KG.
  • cigarette rod making machines of the type known as MkX (commercially available from Molins PLC) or PROTOS (commercially available from Hauni-Werke Korber & Co. KG) can be employed.
  • MkX commercially available from Molins PLC
  • PROTOS commercially available from Hauni-Werke Korber & Co. KG
  • a description of a PROTOS cigarette making machine is provided in U.S. Patent No. 4,474,190 to Brand, at col. 5, line 48 through col. 8, line 3. ypes of equipment suitable for the manufacture of cigarettes also are set forth in U.S. Patent Nos.
  • the automated cigarette making machines of the type set forth herein provide a formed continuous cigarette rod or smokable rod that can be subdivided into formed smokable rodsof desired lengths.
  • another aspect of the present invention comprises an apparatus suitably configured for incorporating the adsorbent material 50 with the carrier material 55, and, in some instances, an optional flavoring agent 52, forming the filter element of the smoking article by incorporating the carrier material 55 carrying the adsorbent material 50, and/or for forming the smoking article itself having such a filter element incorporating the carrier material 55 / adsorbent material 50.
  • the adsorbent material may be released from the carrier material and into the filter material.
  • the carrier material 55 may be dissolved, disintegrated, degraded, or otherwise destroyed so as to release and/or disperse the adsorbent material 50 into the filter material so as to allow the adsorbent material 50 to have the desired effect on the mainstream smoke drawn through the filter element.
  • the release of the adsorbent material into the filter material may occur before or after the continuous rod has been severed into filter segments (e.g., filter element 26). Such release can occur during the manufacturing process.
  • an adsorbent material releasing unit 400 may be provided downstream in the production line from the insertion unit 214, wherein the adsorbent material releasing unit 400 may be configured to interact with the carrier material 55 in situ within the filter element so as to release the adsorbent material 50 into the filter material using, for example, a thermal process, an ultrasonic process, or any other suitable mechanism for releasing the adsorbent material 50 from the carrier material 55.
  • the adsorbent material 50 may be, for example, plasticized (i.e., moistened to form a "paste") such that the resulting object is resilient, flexible, and/or otherwise capable of being handled (see, e.g., US Pat. No. 4,862,905 to Green, Jr. et al. ).
  • the adsorbent material 50 can then be processed into a releasable form, for instance, by a heating and/or drying procedure applied to the filter element having the object therein. That is, the heating/drying process may cause the plasticizer to be removed from the object, which then becomes brittle or otherwise breakable.
  • the object can be relatively larger than previous "solid state" objects inserted into filter elements (i.e., relatively larger than between about 2 mm and about 3.5 mm).
  • the adsorbent material 50 can be incorporated into the adsorbent fiber in any manner known in the art, including by adhering adsorbent particles to the fiber, by imbedding or suspending adsorbent particles within the fiber, or by forming a fiber and then chemically altering the fiber such that an adsorbent material is formed (e.g., carbonization of a fiber).
  • the adsorbent fiber is constructed of a carbonaceous material (i.e., a carbon fiber).
  • carbon fibers can be classified based on the precursor material used to prepare the fiber(e.g., PAN, rayon, pitch, mesophase pitch, isotropic pitch, or gas phase grown fibers).
  • carbon fibers can be classified based on the final heat treatment temperature. Examples include Type-I, high heat treatment (HTT) fibers (final heat treatment temperature above 2,000 °C), Type-II, intermediate heat treatment (IHT) fibers (final heat treatment temperature around 1,500 °C), and Type-III low heat treatment (LHT) fibers (final heat treatment not greater than 1,000 °C). Any of the above classifications of carbon fibers could be used in the present invention.
  • the additives can be any composition capable of altering the character or nature of the smoke passing through the filter material, such as by action of a flavorant or a deodorizing agent.
  • exemplary additives include natural or synthetic flavorants that can alter the flavor and/or aroma of mainstream smoke, and the character of the flavors imparted thereby may be described, without limitation, as fresh, sweet, herbal, confectionary, floral, fruity or spice.
  • the number of degradable or non-degradable fibers imbedded within a filter element can vary. Typical ranges of the number of fiber insertions within a filter element segment include 1 to about 500 fiber insertions, more typically 1 to about 100, and often 1 to about 50.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)

Claims (13)

  1. Eine Vorrichtung (210) zum Bilden eines Zigarettenfilterstabgliedes, welches eine Längsachse definiert, die Vorrichtung umfassend:
    eine stabbildende Einheit (212), welche dazu ausgebildet ist, ein kontinuierliches Angebot an Filtermaterial (40) zu einem kontinuierlichen zylindrischen Stabglied (220) zu formen;
    eine Einführungseinheit (214), welche dazu ausgebildet ist, ein Adsorbensmaterial (50), welches von einem Trägermaterial (55) getragen ist, in das Stabglied (220) einzuführen, wobei das Trägermaterial eines der Elemente kapseiförmiges Glied, röhrenförmiges Glied, kontinuierliches längliches Glied, Trägermatrix, kontinuierliches Streifenglied und Kombinationen hiervon umfasst; und
    eine Adsorbensmaterialfreisetzungseinheit (400), welche dazu ausgebildet ist, das Adsorbensmaterial aus dem Trägermaterial freizusetzen, nachdem das von dem Trägermaterial getragene Adsorbensmaterial innerhalb des Stabgliedes angeordnet worden ist.
  2. Die Vorrichtung nach Anspruch 1, ferner umfassend eine Stabteilungseinheit (222), welche dazu ausgebildet ist, das Stabglied (220) entlang seiner Längsachse in eine Mehrzahl von Stabteilbereichen (26, 205) aufzuteilen, derart, dass jeder Stabteilbereich mindestens einen Teil des Adsorbensmaterials enthält.
  3. Die Vorrichtung nach Anspruch 1 oder 2, ferner umfassend eine adsorbensbildende Einheit (450), welche dazu ausgebildet ist, das Adsorbensmaterial (50) mit dem Trägermaterial (55) in Eingriff zu bringen.
  4. Die Vorrichtung nach einem der Ansprüche 1 bis 3, wobei die Einführungseinheit (214) ferner dazu ausgebildet ist, das von dem Trägermaterial getragene Adsorbensmaterial in einer der Formen Röhre, Pellet und Strang in das Stabglied einzuführen.
  5. Die Vorrichtung nach einem der Ansprüche 1 bis 4, wobei die Adsorbensmaterialfreisetzungseinheit (400) ferner dazu ausgebildet ist, das Trägermaterial einem der Prozesse Auflösen, Zersetzen und Abbauen zu unterwerfen.
  6. Ein Verfahren zum Bilden eines Zigarettenfilterstabgliedes, welches eine Längsachse definiert, das Verfahren umfassend:
    Formen eines kontinuierlichen Angebots an Filtermaterial (40) zu einem kontinuierlichen zylindrischen Stabglied (220);
    Einführen eines Adsorbensmaterials (50), welches von einem Trägermaterial (55) getragen ist, in das Stabglied (220), derart, dass das Adsorbensmaterial innerhalb des Stabgliedes angeordnet wird, wobei das Trägermaterial eines der Elemente kapseiförmiges Glied, röhrenförmiges Glied, kontinuierliches längliches Glied, Trägermatrix, kontinuierliches Streifenglied und Kombinationen hiervon umfasst;
    Teilen des Stabgliedes entlang seiner Längsachse in eine Mehrzahl von Stabteilbereichen (26, 205), derart, dass jeder Stabteilbereich mindestens einen Teil des Adsorbensmaterials enthält; und
    In-situ-Freisetzen des Adsorbensmaterials aus dem Trägermaterial in das Filtermaterial, nachdem das von dem Trägermaterial getragene Adsorbensmaterial in das Filtermaterial eingeführt worden ist, mittels einer Adsorbensmaterialfreisetzungseinheit (400), welche dazu ausgebildet ist, das Adsorbensmaterial aus dem Trägermaterial freizusetzen, nachdem das von dem Trägermaterial getragene Adsorbensmaterial innerhalb des Stabgliedes angeordnet worden ist.
  7. Das Verfahren nach Anspruch 6, wobei das Einführen eines Adsorbensmaterials ferner umfasst: Einführen eines Adsorbensmaterials, umfassend ein kohlenstoffhaltiges Material, welches von einem Trägermaterial getragen ist, in das Stabglied.
  8. Das Verfahren nach Anspruch 6 oder 7, wobei das Einführen eines Adsorbensmaterials ferner umfasst: Einführen eines Adsorbensmaterials, welches von einem Trägermaterial getragen ist, in das Stabglied, wobei das Trägermaterial mindestens eines der Materialien Polyethylenmaterial hoher Dichte und Polyethylenmaterial niedriger Dichte umfasst.
  9. Das Verfahren nach einem der Ansprüche 6 bis 8, wobei das Einführen eines Adsorbensmaterials ferner umfasst: Einführen eines Adsorbensmaterials, welches von einem Trägermaterial getragen ist, in das Stabglied, wobei das Adsorbensmaterial in mindestens einer der Formen Röhre, Pellet und Strang ausgebildet ist.
  10. Das Verfahren nach einem der Ansprüche 6 bis 9, wobei das Einführen eines Adsorbensmaterials ferner umfasst: Einführen eines Adsorbensmaterials, welches von einem Trägermaterial getragen ist, wobei das Adsorbensmaterial ferner ein Flavouring-Agens trägt.
  11. Das Verfahren nach einem der Ansprüche 6 bis 10, ferner umfassend einen der Schritte: Einführen des Adsorbensmaterials in das kapselförmige Glied, Einführen des Adsorbensmaterials in das kontinuierliche röhrenförmige Glied, Ineingriffbringen des Adsorbensmaterials mit dem kontinuierlichen länglichen Glied und Suspendieren des Adsorbensmaterials in der Trägermatrix.
  12. Das Verfahren nach einem der Ansprüche 6 bis 11, wobei das Einführen eines Adsorbensmaterials ferner umfasst: Einführen eines Adsorbensmaterials, welches von einem Trägermaterial getragen ist, das ein kontinuierliches Streifenglied umfasst, wobei das Verfahren ferner umfasst: Längsumwickeln des Adsorbensmaterials mit dem kontinuierlichen Streifenglied.
  13. Das Verfahren nach einem der Ansprüche 6 bis 12, wobei das Freisetzen des Adsorbensmaterials einen der Prozesse Auflösen des Trägermaterials, Zersetzen des Trägermaterials und Abbauen des Trägermaterials umfasst.
EP09751566.2A 2008-05-21 2009-05-21 Vorrichtung und damit in zusammenhang stehendes verfahren zur bildung einer filterkomponente eines rauchartikels, und daraus hergestellter rauchartikel Active EP2323506B2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP12181299.4A EP2537427B1 (de) 2008-05-21 2009-05-21 Zigarettenfilter mit zusammengesetzten Faserstrukturen

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US12/124,891 US8079369B2 (en) 2008-05-21 2008-05-21 Method of forming a cigarette filter rod member
US12/124,874 US8375958B2 (en) 2008-05-21 2008-05-21 Cigarette filter comprising a carbonaceous fiber
US12/392,725 US8613284B2 (en) 2008-05-21 2009-02-25 Cigarette filter comprising a degradable fiber
PCT/US2009/044829 WO2009143338A2 (en) 2008-05-21 2009-05-21 Apparatus and associated method for forming a filter component of a smoking article and smoking articles made therefrom

Related Child Applications (3)

Application Number Title Priority Date Filing Date
EP12181299.4A Division EP2537427B1 (de) 2008-05-21 2009-05-21 Zigarettenfilter mit zusammengesetzten Faserstrukturen
EP12181299.4A Division-Into EP2537427B1 (de) 2008-05-21 2009-05-21 Zigarettenfilter mit zusammengesetzten Faserstrukturen
EP12181299.4 Division-Into 2012-08-22

Publications (3)

Publication Number Publication Date
EP2323506A2 EP2323506A2 (de) 2011-05-25
EP2323506B1 EP2323506B1 (de) 2013-04-10
EP2323506B2 true EP2323506B2 (de) 2016-07-27

Family

ID=40983562

Family Applications (2)

Application Number Title Priority Date Filing Date
EP09751566.2A Active EP2323506B2 (de) 2008-05-21 2009-05-21 Vorrichtung und damit in zusammenhang stehendes verfahren zur bildung einer filterkomponente eines rauchartikels, und daraus hergestellter rauchartikel
EP12181299.4A Active EP2537427B1 (de) 2008-05-21 2009-05-21 Zigarettenfilter mit zusammengesetzten Faserstrukturen

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP12181299.4A Active EP2537427B1 (de) 2008-05-21 2009-05-21 Zigarettenfilter mit zusammengesetzten Faserstrukturen

Country Status (5)

Country Link
EP (2) EP2323506B2 (de)
JP (2) JP5438760B2 (de)
CN (2) CN103222684B (de)
ES (2) ES2603646T3 (de)
WO (1) WO2009143338A2 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2772254C1 (ru) * 2020-06-03 2022-05-18 Интернэшнл Тобакко Машинери Поланд Сп. з о.о. Способ и устройство для изготовления стержней

Families Citing this family (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0905210D0 (en) 2009-03-26 2009-05-13 British American Tobacco Co Rod for a smoking article and method and apparatus for manufacture
GB0922254D0 (en) * 2009-12-21 2010-02-03 British American Tobacco Co Enhancing the disintegration and/or degradation of a smoking article
CN101828770A (zh) * 2010-05-11 2010-09-15 四川三联卷烟材料有限公司 笑脸滤棒
MX342775B (es) * 2010-10-06 2016-10-11 Celanese Acetate Llc Filtros de humo para dispositivos para fumar con masas porosas que tienen una carga de particula de carbono y una caida de presion encapsulada.
US9149070B2 (en) * 2011-07-14 2015-10-06 R.J. Reynolds Tobacco Company Segmented cigarette filter for selective smoke filtration
CN103796537B (zh) * 2011-09-09 2017-09-29 菲利普莫里斯生产公司 包括聚合物***件的发烟制品过滤嘴
US10064429B2 (en) * 2011-09-23 2018-09-04 R.J. Reynolds Tobacco Company Mixed fiber product for use in the manufacture of cigarette filter elements and related methods, systems, and apparatuses
GB201116425D0 (en) * 2011-09-23 2011-11-02 British American Tobacco Co Filter materials and uses thereof
US20130085052A1 (en) * 2011-09-29 2013-04-04 R. J. Reynolds Tobacco Company Apparatus for Inserting Microcapsule Objects into a Filter Element of a Smoking Article, and Associated Method
EP2625975A1 (de) 2012-02-13 2013-08-14 Philip Morris Products S.A. Aerosolerzeugender Artikel mit Aerosolkühlelement
SG11201403730SA (en) 2011-12-30 2014-10-30 Philip Morris Products Sa Smoking article with front-plug and method
AR089602A1 (es) 2011-12-30 2014-09-03 Philip Morris Products Sa Articulo generador de aerosoles para usar con un dispositivo generador de aerosoles
EP2625974A1 (de) * 2012-02-13 2013-08-14 Philip Morris Products S.A. Aerosolerzeugender Artikel mit einer geschmackserzeugenden Komponente
CA2858480C (en) 2011-12-30 2020-06-30 Philip Morris Products S.A. Smoking article with front-plug and aerosol-forming substrate and method
US9854833B2 (en) * 2012-02-16 2018-01-02 R. J. Reynolds Tobacco Company Apparatus and associated method for forming a filter component of a smoking article
GB2503644A (en) * 2012-05-03 2014-01-08 British American Tobacco Co Filter
AU2013269590B2 (en) 2012-05-31 2016-07-07 Philip Morris Products S.A. Flavoured rods for use in aerosol-generating articles
AR091509A1 (es) 2012-06-21 2015-02-11 Philip Morris Products Sa Articulo para fumar para ser usado con un elemento de calentamiento interno
US9179709B2 (en) * 2012-07-25 2015-11-10 R. J. Reynolds Tobacco Company Mixed fiber sliver for use in the manufacture of cigarette filter elements
CN103054181B (zh) * 2012-12-27 2015-02-11 广东中烟工业有限责任公司 一种咖啡或可可复合颗粒滤棒及其制备方法
EP3692819A1 (de) 2013-03-28 2020-08-12 Philip Morris Products S.a.s. Rauchartikel mit geschmacksfreisetzungselement
US20150027468A1 (en) * 2013-07-25 2015-01-29 Altria Client Services Inc. Electronic smoking article
CN104432503B (zh) * 2013-09-18 2018-05-22 贵州中烟工业有限责任公司 一种缓释型酒香卷烟芯线及其制备和应用
JP2016220545A (ja) * 2013-10-25 2016-12-28 日本たばこ産業株式会社 シガレット用のフィルタ
PT3082482T (pt) * 2013-12-20 2018-06-29 Philip Morris Products Sa Artigo para fumar tendo um filtro incluindo uma cápsula
CN104005256A (zh) * 2014-05-30 2014-08-27 滁州卷烟材料厂 一种防水安全烟用接装纸原纸及其制备方法
CN104018401A (zh) * 2014-05-30 2014-09-03 滁州卷烟材料厂 一种具有保健功能的水松纸原纸及其制备方法
CN104005257B (zh) * 2014-05-30 2016-06-08 滁州卷烟材料厂 一种耐水可降解的水松纸原纸及其制备方法
CN104005259B (zh) * 2014-05-30 2016-06-08 滁州卷烟材料厂 一种具有阻燃效果的高透气水松纸原纸及其制备方法
KR20180050342A (ko) * 2015-09-03 2018-05-14 필립모리스 프로덕츠 에스.에이. 에어로졸 발생 물품 및 에어로졸 발생 물품 내 세그먼트로서 사용하기 위한 저 저항 지지 요소
US10524500B2 (en) 2016-06-10 2020-01-07 R.J. Reynolds Tobacco Company Staple fiber blend for use in the manufacture of cigarette filter elements
JP6041415B1 (ja) * 2016-07-04 2016-12-07 田山 ▲吉▼基 フィルタ付シガレットのフィルタにおいて吸引時タール成分１ｍｇ以下にする方法。
US11596171B2 (en) 2017-04-14 2023-03-07 Philip Morris Products S.A. Filter component
GB201717567D0 (en) 2017-10-25 2017-12-06 British American Tobacco Investments Ltd A filter for a smoking article or an aerosol generating product
CN108378416B (zh) * 2018-03-05 2020-05-12 滁州卷烟材料厂 一种三段插接式复合多位截流滤嘴
CN108685192A (zh) * 2018-06-27 2018-10-23 常州龙途新材料科技有限公司 一种用于非燃烧烟的可降解气味产生元件及香烟制品
WO2021071239A1 (ko) * 2019-10-07 2021-04-15 주식회사 이엠텍 전기 가열식 흡연 물품 내에 삽입될 수 있는 액상 카트리지의 제조 장치 및 제조 방법
EP3918929A1 (de) 2020-06-03 2021-12-08 International Tobacco Machinery Poland SP. Z O.O. Verfahren und vorrichtung zur herstellung von stabförmigen artikeln
GB2614895A (en) * 2022-01-21 2023-07-26 Essentra Filter Products Dev Co Pte Ltd A sustainable smoking article element
CN115606841A (zh) * 2022-11-29 2023-01-17 云南中烟工业有限责任公司 一种聚乳酸纤维滤棒卷烟结构及其制备方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1058343A (en) † 1964-04-20 1967-02-08 Philip Morris Inc Filter unit for smoking articles
US3428049A (en) † 1965-12-21 1969-02-18 American Tobacco Co Tobacco smoke filter element
DE1298032B (de) † 1964-12-15 1969-06-19 H 2 O Filter Corp Zigarettenfilter
GB1331096A (en) † 1970-10-07 1973-09-19 British American Tobacco Co Tobacco-smoke filters
GB2223393A (en) † 1988-10-05 1990-04-11 Cigarette Components Ltd Tobacco smoke filter containing particulate additive
WO2006059134A1 (en) † 2004-12-03 2006-06-08 Filtrona International Limited Tobacco smoke filter production

Family Cites Families (178)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2881770A (en) 1954-05-27 1959-04-14 Eastman Kodak Co Fibrous tobacco smoke filters
NL252242A (de) 1959-06-03
US3101723A (en) 1960-11-15 1963-08-27 Philip Morris Inc Fibrous cigarette filter
NL282359A (de) 1961-09-19
US3311519A (en) 1964-01-28 1967-03-28 Eastman Kodak Co Additive filter
US3347247A (en) 1964-05-14 1967-10-17 Philip Morris Inc Tobacco smoke filter
US3349780A (en) 1964-11-04 1967-10-31 Eastman Kodak Co Acetate filter elements containing carbon
US3370595A (en) 1965-01-04 1968-02-27 Celanese Corp Smoke filters
DE1300854B (de) 1965-05-14 1969-08-07 Reemtsma H F & Ph Filter fuer Zigaretten
US3319629A (en) 1965-05-20 1967-05-16 American Cyanamid Co Filter cigarette
US3217715A (en) 1965-05-24 1965-11-16 American Filtrona Corp Smoke filter and smoking devices formed therewith
US3413982A (en) 1965-08-04 1968-12-03 Eastman Kodak Co Tobacco smoke filter employing ethylene copolymer bonding material
US3602231A (en) 1969-12-12 1971-08-31 H 2 D Filter Corp The Means for audible detection of the activation of a filter for smoking devices
IL37274A0 (en) * 1970-07-29 1971-10-20 Celfil Co Filters for tobacco products and method for their manufacture
US3648711A (en) 1970-08-11 1972-03-14 American Filtrona Corp Tobacco smoke filter
BE787501A (fr) 1971-08-12 1973-02-12 Rhone Poulenc Textile Articles textiles pour vetements de protection et procede pour les obtenir
DE2232892A1 (de) 1972-07-05 1974-01-24 Hauni Werke Koerber & Co Kg Vorrichtung zum umhuellen eines endlosen tabakstranges
US3972335A (en) 1972-09-20 1976-08-03 Calgon Corporation Mentholated cigarette filter
US3957563A (en) 1974-02-22 1976-05-18 Brown & Williamson Tobacco Corporation Method and apparatus for the manufacture of filter rods containing particulate material by a split rod technique
CH613850A5 (de) 1976-11-26 1979-10-31 Baumgartner Papiers Sa
JPS5388400A (en) * 1977-01-13 1978-08-03 Toho Rayon Co Ltd Cigarette filter
DE2703288A1 (de) 1977-01-27 1978-08-03 Hauni Werke Koerber & Co Kg Verfahren und vorrichtung zum siegeln einer naht eines strangfoermigen produktes der tabakverarbeitenden industrie
CH608177A5 (de) 1977-02-21 1978-12-29 Neukomm Serge
US4174720A (en) 1977-04-26 1979-11-20 Liggett Group Inc. Glue transfer apparatus for cigarette filters
GB2020158B (en) 1978-04-21 1982-11-24 Cigarette Components Ltd Production of tobacco smoke filters
US4474190A (en) 1981-03-21 1984-10-02 Hauni-Werke Korber & Co. Kg Method and apparatus for regulating the operation of machines for the production of cigarettes or the like
DE3345608A1 (de) 1983-02-04 1984-08-09 Hauni-Werke Körber & Co KG, 2050 Hamburg Verfahren und vorrichtung zum bilden von stabfoermigen artikeln der tabakverarbeitenden industrie
IT1178561B (it) 1983-10-12 1987-09-09 Hauni Werke Koerber & Co Kg Procedimento e dispositivo per formare un filone di tabacco, e sigarette prodotte mediante un filone di tale tipo
JPS60224816A (ja) 1984-04-20 1985-11-09 Nikkiso Co Ltd 気相成長による炭素繊維の製造方法
US5012823A (en) 1984-08-03 1991-05-07 Philip Morris Incorporated Tobacco processing
US4793365A (en) 1984-09-14 1988-12-27 R. J. Reynolds Tobacco Company Smoking article
US5020548A (en) 1985-08-26 1991-06-04 R. J. Reynolds Tobacco Company Smoking article with improved fuel element
CN1018329B (zh) 1984-12-21 1992-09-23 美国耳杰瑞诺兹烟草公司 吸烟制品的碳燃料元件及其制备方法
US4781203A (en) 1985-05-15 1988-11-01 Hue Paul D Method and apparatus for making self-extinguishing cigarette
US4989619A (en) 1985-08-26 1991-02-05 R. J. Reynolds Tobacco Company Smoking article with improved fuel element
US5033483A (en) 1985-10-28 1991-07-23 R. J. Reynolds Tobacco Company Smoking article with tobacco jacket
US4756318A (en) 1985-10-28 1988-07-12 R. J. Reynolds Tobacco Company Smoking article with tobacco jacket
US4917128A (en) 1985-10-28 1990-04-17 R. J. Reynolds Tobacco Co. Cigarette
ZA87623B (en) 1986-03-10 1987-11-25 Gen Electric Apparatus for monitoring temperatures of implements during brazing
US5076297A (en) 1986-03-14 1991-12-31 R. J. Reynolds Tobacco Company Method for preparing carbon fuel for smoking articles and product produced thereby
US4771795A (en) 1986-05-15 1988-09-20 R. J. Reynolds Tobacco Company Smoking article with dual burn rate fuel element
DE3631227C2 (de) 1986-09-13 1994-09-01 Hauni Werke Koerber & Co Kg Verfahren und Vorrichtung zum Herstellen von Zigaretten
GB8622606D0 (en) 1986-09-19 1986-10-22 Imp Tobacco Ltd Smoking article
US5052413A (en) * 1987-02-27 1991-10-01 R. J. Reynolds Tobacco Company Method for making a smoking article and components for use therein
US5268158A (en) 1987-03-11 1993-12-07 Hercules Incorporated High modulus pan-based carbon fiber
US4862905A (en) 1987-06-15 1989-09-05 R. J. Reynolds Tobacco Company Rods containing pelletized material
DE3725364A1 (de) 1987-07-31 1989-02-09 Hauni Werke Koerber & Co Kg Verfahren und anordnung zum bilden eines stranges aus fasern von tabak oder einem anderen rauchfaehigen material
US4821749A (en) 1988-01-22 1989-04-18 R. J. Reynolds Tobacco Company Extruded tobacco materials
US4811745A (en) 1988-02-04 1989-03-14 Hercules Incorporated Method and device for control of by-products from cigarette smoke
US5360023A (en) 1988-05-16 1994-11-01 R. J. Reynolds Tobacco Company Cigarette filter
US5074321A (en) 1989-09-29 1991-12-24 R. J. Reynolds Tobacco Company Cigarette
US5271419A (en) 1989-09-29 1993-12-21 R. J. Reynolds Tobacco Company Cigarette
US5137034A (en) 1988-05-16 1992-08-11 R. J. Reynolds Tobacco Company Smoking article with improved means for delivering flavorants
US5159940A (en) * 1988-07-22 1992-11-03 Philip Morris Incorporated Smoking article
US4966171A (en) 1988-07-22 1990-10-30 Philip Morris Incorporated Smoking article
US4991606A (en) 1988-07-22 1991-02-12 Philip Morris Incorporated Smoking article
US5076296A (en) 1988-07-22 1991-12-31 Philip Morris Incorporated Carbon heat source
US4925602A (en) 1988-08-10 1990-05-15 Filter Materials Limited Method for improving the crimping of polyolefin filter tow
GB8819291D0 (en) 1988-08-12 1988-09-14 British American Tobacco Co Improvements relating to smoking articles
US4947874A (en) 1988-09-08 1990-08-14 R. J. Reynolds Tobacco Company Smoking articles utilizing electrical energy
US5040551A (en) 1988-11-01 1991-08-20 Catalytica, Inc. Optimizing the oxidation of carbon monoxide
US5211684A (en) 1989-01-10 1993-05-18 R. J. Reynolds Tobacco Company Catalyst containing smoking articles for reducing carbon monoxide
GB8901579D0 (en) 1989-01-25 1989-03-15 Imp Tobacco Co Ltd Improvements to smoking articles
US5536486A (en) 1989-03-15 1996-07-16 Petoca Ltd. Carbon fibers and non-woven fabrics
DE3910059C1 (en) 1989-03-28 1990-11-15 B.A.T. Cigarettenfabriken Gmbh, 2000 Hamburg, De Smokable article
US4961438A (en) 1989-04-03 1990-10-09 Brown & Williamson Tobacco Corporation Smoking device
US5101839A (en) 1990-08-15 1992-04-07 R. J. Reynolds Tobacco Company Cigarette and smokable filler material therefor
US5105836A (en) 1989-09-29 1992-04-21 R. J. Reynolds Tobacco Company Cigarette and smokable filler material therefor
JP2947574B2 (ja) 1989-11-17 1999-09-13 ダイセル化学工業株式会社 高捲縮弾性率アセテートトウおよびその製造方法
JP2717232B2 (ja) 1990-01-12 1998-02-18 群栄化学工業株式会社 活性炭繊維構造体及びその製造方法
US5338605A (en) 1990-01-31 1994-08-16 Ketema, Inc. Hollow carbon fibers
US5183062A (en) 1990-02-27 1993-02-02 R. J. Reynolds Tobacco Company Cigarette
US5027837A (en) 1990-02-27 1991-07-02 R. J. Reynolds Tobacco Company Cigarette
US5099861A (en) 1990-02-27 1992-03-31 R. J. Reynolds Tobacco Company Aerosol delivery article
DE4006843C2 (de) 1990-03-05 2001-10-18 Hauni Werke Koerber & Co Kg Format für eine Strangmaschine zum Herstellen von Rauchartikeln oder Filterstäben
US5191905A (en) * 1990-03-16 1993-03-09 Costarica Sogo Kaihatsu Co., Ltd. Filter cigarette having filter containing absorptive synthetic graft polymer fibers produced from irradiated polyethylene reacted with vapor phase styrene or absorptive synthetic magnetic fibers
US5131416A (en) 1990-12-17 1992-07-21 R. J. Reynolds Tobacco Company Cigarette
US5159944A (en) 1990-05-24 1992-11-03 R. J. Reynolds Tobacco Company Cigarette
US5240014A (en) 1990-07-20 1993-08-31 Philip Morris Incorporated Catalytic conversion of carbon monoxide from carbonaceous heat sources
US5396911A (en) 1990-08-15 1995-03-14 R. J. Reynolds Tobacco Company Substrate material for smoking articles
US5148821A (en) 1990-08-17 1992-09-22 R. J. Reynolds Tobacco Company Processes for producing a smokable and/or combustible tobacco material
US5622190A (en) 1990-08-24 1997-04-22 Philip Morris Incorporated Concentric smoking filter having cellulose acetate tow periphery and carbon-particle-loaded web filter core
US5105837A (en) 1990-08-28 1992-04-21 R. J. Reynolds Tobacco Company Smoking article with improved wrapper
US5065776A (en) 1990-08-29 1991-11-19 R. J. Reynolds Tobacco Company Cigarette with tobacco/glass fuel wrapper
US5191906A (en) 1990-10-30 1993-03-09 Philip Morris Incorporated Process for making wrappers for smoking articles which modify the burn rate of the smoking article
US5156169A (en) 1990-11-06 1992-10-20 R. J. Reynolds Tobacco Company Apparatus for making cigarettes
US5240016A (en) 1991-04-19 1993-08-31 Philip Morris Incorporated Thermally releasable gel-based flavor source for smoking articles
US5178167A (en) 1991-06-28 1993-01-12 R. J. Reynolds Tobacco Company Carbonaceous composition for fuel elements of smoking articles and method of modifying the burning characteristics thereof
US5482773A (en) 1991-07-01 1996-01-09 E. I. Du Pont De Nemours And Company Activated carbon-containing fibrids
US5220930A (en) 1992-02-26 1993-06-22 R. J. Reynolds Tobacco Company Cigarette with wrapper having additive package
CA2090918C (en) 1992-03-25 2006-01-17 Robert Leonard Meiring Components for smoking articles and process for making same
US5387285A (en) 1992-06-02 1995-02-07 R. J. Reynolds Tobacco Company Apparatus for injecting a fluid into filter tow
JPH0617321A (ja) 1992-06-25 1994-01-25 Morinobu Endo ピッチ系活性炭素繊維
GB9214267D0 (en) 1992-07-04 1992-08-19 British American Tobacco Co Improvements relating to smoking articles
US5469871A (en) 1992-09-17 1995-11-28 R. J. Reynolds Tobacco Company Cigarette and method of making same
US5345955A (en) 1992-09-17 1994-09-13 R. J. Reynolds Tobacco Company Composite fuel element for smoking articles
PH30299A (en) 1993-04-07 1997-02-20 Reynolds Tobacco Co R Fuel element composition
US5468266A (en) 1993-06-02 1995-11-21 Philip Morris Incorporated Method for making a carbonaceous heat source containing metal oxide
US5404890A (en) 1993-06-11 1995-04-11 R. J. Reynolds Tobacco Company Cigarette filter
AU675573B2 (en) * 1993-09-30 1997-02-06 British-American Tobacco Company Limited Improvements relating to tobacco smoke filter elements
BE1007973A7 (fr) * 1994-02-15 1995-11-28 Hens Olivier Filtre.
ES2148549T3 (es) 1994-09-07 2000-10-16 British American Tobacco Co Articulos para fumar.
US6089857A (en) 1996-06-21 2000-07-18 Japan Tobacco, Inc. Heater for generating flavor and flavor generation appliance
US5911224A (en) * 1997-05-01 1999-06-15 Filtrona International Limited Biodegradable polyvinyl alcohol tobacco smoke filters, tobacco smoke products incorporating such filters, and methods and apparatus for making same
JP2931810B1 (ja) * 1998-03-31 1999-08-09 日本たばこ産業株式会社 生分解性セルロースアセテート成形品およびたばこ用フィルタープラグ
DE19844167A1 (de) 1998-09-25 2000-04-06 Ticona Gmbh Aktivkohlefilter
ES2291193T3 (es) * 1999-03-11 2008-03-01 Japan Tobacco Inc. Construcciones biodegradables de acetato de celulosa y filtro para tabaco.
DE60031897T2 (de) 1999-06-18 2007-09-06 Toray Industries, Inc. Polymilchsäureharz, damit erhaltene Textilerzeugnisse und Verfahren zur Herstellung derselben
US6360751B1 (en) 1999-12-01 2002-03-26 R. J. Reynolds Tobacco Company Asymmetrical trimmer disk apparatus
GB9928853D0 (en) 1999-12-07 2000-02-02 British American Tobacco Co Improvements relating to smoking articles
US7223376B2 (en) 2000-02-10 2007-05-29 Industrial Technology And Equipment Company Apparatus and method for making carbon fibers
MY128157A (en) 2000-04-20 2007-01-31 Philip Morris Prod High efficiency cigarette filters having shaped micro cavity fibers impregnated with adsorbent or absorbent materials
US6537186B1 (en) 2000-07-05 2003-03-25 Baumgartner Papiers S.A. Process and apparatus for high-speed filling of composite cigarette filters
WO2002017737A1 (fr) 2000-08-29 2002-03-07 Japan Tobacco Inc. Article a fumer a diffusion basse et son procede de fabrication
AU2001284488A1 (en) 2000-09-08 2002-03-22 Japan Tobacco Inc. Method and device for producing low flame propagation cigarette
US6789547B1 (en) 2000-10-31 2004-09-14 Philip Morris Incorporated Carbon technology
ES2310562T3 (es) 2000-11-06 2009-01-16 Japan Tobacco Inc. Composicion desodorante contra el olor a tabaco, desodorante contra el olor a tabaco y paquete de tabaco y cigarrillos con olor a humo secundario reducido.
EP1408780A2 (de) 2000-11-10 2004-04-21 Vector Tobacco Ltd. Verfahren und produkt zur entfernung von karzinogenen aus tabakrauch
JP3941384B2 (ja) 2000-12-05 2007-07-04 アイダエンジニアリング株式会社 駆動装置並びにプレス機械のスライド駆動装置及び方法
US6761174B2 (en) 2001-02-22 2004-07-13 Philip Morris Incorporated Cigarette and filter with downstream flavor addition
US7275548B2 (en) 2001-06-27 2007-10-02 R.J. Reynolds Tobacco Company Equipment for manufacturing cigarettes
US20030066539A1 (en) 2001-08-01 2003-04-10 Figlar James N. Cigarette Filter
US7237559B2 (en) 2001-08-14 2007-07-03 R.J. Reynolds Tobacco Company Wrapping materials for smoking articles
US6532965B1 (en) 2001-10-24 2003-03-18 Brown & Williamson Tobacco Corporation Smoking article using steam as an aerosol-generating source
US6598607B2 (en) 2001-10-24 2003-07-29 Brown & Williamson Tobacco Corporation Non-combustible smoking device and fuel element
US6913784B2 (en) 2001-11-30 2005-07-05 Philip Morris Usa Inc. Continuous process for impregnating solid adsorbent particles into shaped micro-cavity fibers and fiber filters
ES2269284T3 (es) 2001-12-18 2007-04-01 British American Tobacco (Germany) Gmbh Filtro para un articulo fumable.
MY135471A (en) 2002-01-09 2008-04-30 Philip Morris Prod Cigarette filter with beaded carbon
US6779530B2 (en) 2002-01-23 2004-08-24 Schweitzer-Mauduit International, Inc. Smoking articles with reduced ignition proclivity characteristics
DE10202847A1 (de) 2002-01-24 2003-08-07 Hauni Maschinenbau Ag Einlauffinger einer Formateinrichtung
DE10205055A1 (de) 2002-02-07 2003-08-14 Hauni Maschinenbau Ag Verfahren und Vorrichtung zum Fördern eines Hüllstreifens in einer Maschine der tabakverarbeitenden Industrie
US20030159703A1 (en) 2002-02-22 2003-08-28 Zuyin Yang Flavored carbon useful as filtering material of smoking article
US7074170B2 (en) 2002-03-29 2006-07-11 Philip Morris Usa Inc. Method and apparatus for making cigarette filters with a centrally located flavored element
PL202933B1 (pl) * 2002-04-12 2009-08-31 Philip Morris Products Filtr papierosowy
DE10217410A1 (de) * 2002-04-18 2003-10-30 Hauni Maschinenbau Ag Zigarettenfilter und Verfahren zur Herstellung desselben
GB0209690D0 (en) 2002-04-27 2002-06-05 British American Tobacco Co Improvements relating to smoking articles and smokable filler materials therefor
DE60310724T2 (de) 2002-08-09 2007-10-31 British American Tobacco (Investments) Ltd. Verbesserungen an filterzigaretten und verfahren zur deren herstellung
US7281540B2 (en) 2002-12-20 2007-10-16 R.J. Reynolds Tobacco Company Equipment and methods for manufacturing cigarettes
US7234471B2 (en) 2003-10-09 2007-06-26 R. J. Reynolds Tobacco Company Cigarette and wrapping materials therefor
US7784471B2 (en) 2003-01-09 2010-08-31 Philip Morris Usa Inc. Cigarette filter with beaded carbon
CN100557106C (zh) 2003-02-27 2009-11-04 株洲雪松麻业有限责任公司 一种含有竹原纤维的纺纱及其制作方法
US7370657B2 (en) 2003-04-02 2008-05-13 Philip Morris Usa Inc. Activated carbon-containing sorbent
GB0310034D0 (en) 2003-04-30 2003-06-04 British American Tobacco Co Improvements relating to material application to rod wrappers
GB0316171D0 (en) 2003-07-10 2003-08-13 British American Tobacco Co Improvements relating to smoking article filters
ATE361004T1 (de) 2003-09-03 2007-05-15 Hauni Maschinenbau Ag Verfahren und vorrichtung zur herstellung eines filterstrangs
US7115085B2 (en) 2003-09-12 2006-10-03 R.J. Reynolds Tobacco Company Method and apparatus for incorporating objects into cigarette filters
US7856990B2 (en) 2003-09-30 2010-12-28 R. J. Reynolds Tobacco Company Filtered cigarette incorporating an adsorbent material
US20050066986A1 (en) 2003-09-30 2005-03-31 Nestor Timothy Brian Smokable rod for a cigarette
DE602004012296T3 (de) * 2003-09-30 2013-07-04 R.J. Reynolds Tobacco Company Filterzigarette, die ein adsorbierendes material enthält
US7240678B2 (en) * 2003-09-30 2007-07-10 R. J. Reynolds Tobacco Company Filtered cigarette incorporating an adsorbent material
US8381738B2 (en) 2003-12-22 2013-02-26 Philip Morris Usa Inc. Composite materials and their use in smoking articles
GB0404324D0 (en) 2004-02-27 2004-03-31 British American Tobacco Co Smoking article and apparatus and process for manufacturing a smoking article
UA88469C2 (uk) 2004-05-24 2009-10-26 Бритиш Американ Тобакко (Инвестментс) Лимитед Молекулярно вдрукований полімер, селективний щодо нітрозамінів, спосіб його одержання (варіанти), застосування, способи визначення наявності та кількісного вмісту нітрозамінів в тютюновому продукті, спосіб обробки тютюнового продукту, спосіб виготовлення тютюнового матеріалу, курильний виріб та фільтр для тютюнового диму
GB0411988D0 (en) 2004-05-28 2004-06-30 British American Tobacco Co Smoking articles and smoking materials
US20050268925A1 (en) 2004-06-03 2005-12-08 Brown & Williamson Tobacco Corporation Application of mesoporous molecular sieves as selective smoke filtration additives
WO2006051422A1 (en) 2004-11-10 2006-05-18 Philip Morris Products S.A. Capsuled adsorbent flavored filter
US20070261706A1 (en) 2004-12-15 2007-11-15 Ashesh Banerjea Cigarette with carbon on tow filter
US8408216B2 (en) 2004-12-22 2013-04-02 Philip Morris Usa Inc. Flavor carrier for use in smoking articles
US20060144410A1 (en) 2004-12-30 2006-07-06 Philip Morris Usa Inc. Surface-modified activated carbon in smoking articles
US8539957B2 (en) 2005-01-14 2013-09-24 Philip Morris Usa Inc. Cigarettes and cigarette filters including activated carbon for removing nitric oxide
GB0506278D0 (en) 2005-03-29 2005-05-04 British American Tobacco Co Porous carbon materials and smoking articles and smoke filters therefor incorporating such materials
US7878209B2 (en) 2005-04-13 2011-02-01 Philip Morris Usa Inc. Thermally insulative smoking article filter components
EP1738821A1 (de) 2005-06-17 2007-01-03 British American Tobacco Italia S.p.A. Verfahren zur Verringerung von Stickoxiden in einem Medium durch Absorption mit Resorcin¬4|arenen
GB0514959D0 (en) 2005-07-21 2005-08-24 British American Tobacco Co Smoking article
US20070215167A1 (en) 2006-03-16 2007-09-20 Evon Llewellyn Crooks Smoking article
GB0517551D0 (en) * 2005-08-27 2005-10-05 Acetate Products Ltd Process for making filter tow
KR100664827B1 (ko) 2005-09-06 2007-01-04 브리티쉬 아메리칸 토바코 코리아 (주) 담배필터 감지 시스템 및 그 방법
US20070056600A1 (en) 2005-09-14 2007-03-15 R. J. Reynolds Tobacco Company Filtered smoking article
US7479098B2 (en) 2005-09-23 2009-01-20 R. J. Reynolds Tobacco Company Equipment for insertion of objects into smoking articles
US7407922B2 (en) 2005-10-13 2008-08-05 S.C. Johnson & Son, Inc. Deodorizing compositions
US8381736B2 (en) * 2006-01-27 2013-02-26 British America Tobacco (Investments) Limited Method of preparing a rod for use in the preparation of a smoking article
GB0603126D0 (en) 2006-02-16 2006-03-29 British American Tobacco Co Improvements relating to smoking articles and filters therefor
MY146137A (en) 2006-03-10 2012-06-29 British American Tobacco Co Smoking article filter
DE102006025738B3 (de) * 2006-05-31 2007-11-08 Hauni Maschinenbau Ag Einbringen von Zusatzstoffen in einen Filterstrang
US7740019B2 (en) 2006-08-02 2010-06-22 R.J. Reynolds Tobacco Company, Inc. Equipment and associated method for insertion of material into cigarette filters
US7789089B2 (en) 2006-08-04 2010-09-07 R. J. Reynolds Tobacco Company Filtered cigarette possessing tipping material
US7726320B2 (en) 2006-10-18 2010-06-01 R. J. Reynolds Tobacco Company Tobacco-containing smoking article
WO2009016513A2 (en) * 2007-08-01 2009-02-05 Philip Morris Products S.A. Degradable cigarette filters

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1058343A (en) † 1964-04-20 1967-02-08 Philip Morris Inc Filter unit for smoking articles
DE1298032B (de) † 1964-12-15 1969-06-19 H 2 O Filter Corp Zigarettenfilter
US3428049A (en) † 1965-12-21 1969-02-18 American Tobacco Co Tobacco smoke filter element
GB1331096A (en) † 1970-10-07 1973-09-19 British American Tobacco Co Tobacco-smoke filters
GB2223393A (en) † 1988-10-05 1990-04-11 Cigarette Components Ltd Tobacco smoke filter containing particulate additive
WO2006059134A1 (en) † 2004-12-03 2006-06-08 Filtrona International Limited Tobacco smoke filter production

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2772254C1 (ru) * 2020-06-03 2022-05-18 Интернэшнл Тобакко Машинери Поланд Сп. з о.о. Способ и устройство для изготовления стержней

Also Published As

Publication number Publication date
JP2011520469A (ja) 2011-07-21
EP2537427A1 (de) 2012-12-26
CN102046033B (zh) 2013-12-04
ES2420685T5 (es) 2017-02-10
EP2323506B1 (de) 2013-04-10
JP5438760B2 (ja) 2014-03-12
WO2009143338A2 (en) 2009-11-26
CN103222684B (zh) 2015-11-18
CN103222684A (zh) 2013-07-31
ES2603646T3 (es) 2017-02-28
JP5905432B2 (ja) 2016-04-20
JP2014036659A (ja) 2014-02-27
EP2537427B1 (de) 2016-08-17
ES2420685T3 (es) 2013-08-26
WO2009143338A3 (en) 2010-01-21
CN102046033A (zh) 2011-05-04
EP2323506A2 (de) 2011-05-25

Similar Documents

Publication Publication Date Title
EP2323506B2 (de) Vorrichtung und damit in zusammenhang stehendes verfahren zur bildung einer filterkomponente eines rauchartikels, und daraus hergestellter rauchartikel
EP2403365B1 (de) Eine abbaubare faser enthaltender zigarettenfilter
US8375958B2 (en) Cigarette filter comprising a carbonaceous fiber
US8079369B2 (en) Method of forming a cigarette filter rod member
EP2713782B1 (de) Beschichtetes papierfilter
US20170042222A1 (en) Smoking article filters
US8739802B2 (en) Filtered cigarette
EP2757910B1 (de) Mischfase produkt zur verwendung bei der herstellung von zigarettenfilterelementen und zugehörige verfahren

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20101207

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA RS

DAX Request for extension of the european patent (deleted)
17Q First examination report despatched

Effective date: 20120420

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RIN1 Information on inventor provided before grant (corrected)

Inventor name: HUTCHENS, RONALD, KEITH

Inventor name: ANDRESEN, NORMAN, PHILIP

Inventor name: DUBE, MICHAEL, FRANCIS

Inventor name: ARZONICO, BARBARA, WALKER

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: AT

Ref legal event code: REF

Ref document number: 605461

Country of ref document: AT

Kind code of ref document: T

Effective date: 20130415

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602009014873

Country of ref document: DE

Effective date: 20130606

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2420685

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20130826

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130410

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 605461

Country of ref document: AT

Kind code of ref document: T

Effective date: 20130410

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20130410

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130410

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130810

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130812

Ref country code: BE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130410

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130410

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130410

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130410

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130711

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130710

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130410

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130710

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130410

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130410

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130410

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130410

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130410

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130531

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130410

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130410

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130531

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130410

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130410

PLAX Notice of opposition and request to file observation + time limit sent

Free format text: ORIGINAL CODE: EPIDOSNOBS2

26 Opposition filed

Opponent name: PHILIP MORRIS PRODUCTS S.A.

Effective date: 20140110

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130410

REG Reference to a national code

Ref country code: DE

Ref legal event code: R026

Ref document number: 602009014873

Country of ref document: DE

Effective date: 20140110

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130521

PLAF Information modified related to communication of a notice of opposition and request to file observations + time limit

Free format text: ORIGINAL CODE: EPIDOSCOBS2

PLBB Reply of patent proprietor to notice(s) of opposition received

Free format text: ORIGINAL CODE: EPIDOSNOBS3

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130410

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130410

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 602009014873

Country of ref document: DE

Representative=s name: HOEGER, STELLRECHT & PARTNER PATENTANWAELTE MB, DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130410

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130521

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20090521

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 8

PUAH Patent maintained in amended form

Free format text: ORIGINAL CODE: 0009272

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT MAINTAINED AS AMENDED

27A Patent maintained in amended form

Effective date: 20160727

AK Designated contracting states

Kind code of ref document: B2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: DE

Ref legal event code: R102

Ref document number: 602009014873

Country of ref document: DE

REG Reference to a national code

Ref country code: ES

Ref legal event code: DC2A

Ref document number: 2420685

Country of ref document: ES

Kind code of ref document: T5

Effective date: 20170210

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 9

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 10

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 602009014873

Country of ref document: DE

Representative=s name: HOEGER, STELLRECHT & PARTNER PATENTANWAELTE MB, DE

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20230330

Year of fee payment: 15

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230504

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20230412

Year of fee payment: 15

Ref country code: ES

Payment date: 20230601

Year of fee payment: 15

Ref country code: DE

Payment date: 20230331

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20240311

Year of fee payment: 16