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US20040200491A1 - On line formation of recessed cigarette filter - Google Patents

On line formation of recessed cigarette filter Download PDF

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Publication number
US20040200491A1
US20040200491A1 US10/410,626 US41062603A US2004200491A1 US 20040200491 A1 US20040200491 A1 US 20040200491A1 US 41062603 A US41062603 A US 41062603A US 2004200491 A1 US2004200491 A1 US 2004200491A1
Authority
US
United States
Prior art keywords
substrate
particulate material
filter
layer
particulate
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.)
Abandoned
Application number
US10/410,626
Other languages
English (en)
Inventor
Georgios Karles
Henry Dante
Xuan Pham
Barry Smith
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.)
Philip Morris USA Inc
Original Assignee
Philip Morris USA Inc
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
Application filed by Philip Morris USA Inc filed Critical Philip Morris USA Inc
Priority to US10/410,626 priority Critical patent/US20040200491A1/en
Assigned to PHILIP MORRIS USA INC. reassignment PHILIP MORRIS USA INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DANTE, HENRY M., KARLES, GEORGIOS D., PHAM, XUAN, SMITH, BARRY S.
Priority to DE602004023142T priority patent/DE602004023142D1/de
Priority to EP04725454A priority patent/EP1610632B1/fr
Priority to PL04725454T priority patent/PL1610632T3/pl
Priority to BRPI0409254-6A priority patent/BRPI0409254B1/pt
Priority to PCT/IB2004/001327 priority patent/WO2004089124A1/fr
Priority to CN2011100727154A priority patent/CN102100404A/zh
Priority to AT04725454T priority patent/ATE398939T1/de
Priority to EP07021885A priority patent/EP1908360B1/fr
Priority to ES07021885T priority patent/ES2333171T3/es
Priority to PL07021885T priority patent/PL1908360T3/pl
Priority to ES04725454T priority patent/ES2305759T3/es
Priority to AT07021885T priority patent/ATE442061T1/de
Priority to DE602004014599T priority patent/DE602004014599D1/de
Priority to RU2005134654/12A priority patent/RU2342892C2/ru
Priority to CN2004800095538A priority patent/CN1770987B/zh
Priority to JP2006506552A priority patent/JP4522403B2/ja
Priority to KR1020117019989A priority patent/KR101174611B1/ko
Publication of US20040200491A1 publication Critical patent/US20040200491A1/en
Priority to KR1020057018969A priority patent/KR101174519B1/ko
Priority to US11/643,155 priority patent/US7918232B2/en
Abandoned legal-status Critical Current

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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
    • 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
    • A24D3/02—Manufacture of tobacco smoke filters
    • A24D3/0275—Manufacture of tobacco smoke filters for filters with special features
    • A24D3/0287—Manufacture of tobacco smoke filters for filters with special features for composite 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
    • 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

  • the present invention relates to the formation of recessed cigarette filters, and more particularly to the on line formation of filters that include smoke altering particulate material such as catalysts, adsorbents, flavors and the like.
  • Many filter making procedures include combining a number of independent filter components fabricated beforehand, stored and then combined into a particular cigarette filter design, such as a plug-space-plug configuration. Such procedures require a number of steps which can be eliminated with on line formation of the filter components, such as the step of storing the preformed filter components before assembly.
  • one of the objects of the present invention is a procedure for the on line formation of cigarette filters in the production of cigarettes.
  • Another object of the present invention is a procedure for on line formation of filters which enables variation of the process parameters to produce filters of different construction and efficiency.
  • Still another object of the present invention is a filter making process which is simple, but highly effective in producing cigarette filters at high production speeds.
  • an electrostatic deposition or other process such as xerography or electrophotography that allows the formation of a layer of smoke altering particulate material on a paper substrate or the filter paper or any other suitable substrate is used on line to create an active layer in the recessed area of a cigarette filter.
  • the amount of smoke altering particulate material can be varied depending on the strength of the applied field and coverage on the filter paper.
  • the particulate material may be bound together using small amounts of a hot melt binder. Hot melt binders are preferred over solution or latex binders which may require extensive drying for the removal of the liquid carrier. Moreover, the use of such a binder to keep the particulate material bound to the surface of the paper does not render the material inactive.
  • a wide variety of particulates may be deposited in this manner such as catalysts, flavors and adsorbents, for example.
  • Particulate material may be introduced in the electrostatically deposited layer to assist in the removal of specific components in the tobacco smoke stream.
  • Silicas could be used to remove specific aldehydes, for example.
  • the electrostatically deposited layer could also include a combination of particulates such as a carbon adsorbent and a flavorant that enhances the flavor or subjective characteristics of the cigarette. This along with the ability to apply the layer on line improves the flexibility of the cigarette designer in terms of smoke delivery and increases the ability to control the quality of the entire process.
  • Another aspect of the invention deals with the use of nonwovens in place of particulate laden paper.
  • a nonwoven activated carbon piece may be used in place of carbon filled paper.
  • cellulose fibers used in the carbon filled paper are hygroreactive and may tend to make the smoke dry. Accordingly, use of a paperless nonwoven with activated carbon adsorbent could improve the subjective characteristics experienced during the smoking process.
  • FIG. 1 is a schematic diagrammatic view illustrating on line electrostatic deposition of particulate material onto a substrate and formation of the particulate coated substrate into plug form for on line insertion into the cavities between a continuous line of spaced apart cellulose acetate plugs;
  • FIG. 2 is a side elevational view of the particulate plug of FIG. 1 after being cut and prior to the flap being folded over to complete the plug form;
  • FIG. 3 is a schematic diagrammatic view illustrating the plugs of FIG. 1 inserted into the cavities between spaced apart cellulose acetate plugs in the continuous production of cigarette filters;
  • FIG. 4 is a complete plug-space-plug cigarette filter with a particulate plug in the cavity between two cellulose acetate plugs;
  • FIG. 5 is a schematic diagrammatic view illustrating an alternate process for on line electrostatic deposition of particulate material onto filter paper during the continuous production of plug-space-plug cigarette filters;
  • FIG. 6 is a plan view of the cigarette filter paper of FIG. 5 with smoke altering material electrostatically deposited on the paper;
  • FIG. 7 is a schematic diagrammatic view illustrating still another procedure for on line electrostatic deposition of particulate material onto filter paper by indirect transfer;
  • FIG. 8 shows particulate material electrostatically deposited on the paper in pattern form
  • FIG. 9 is another schematic diagrammatic view showing particulate material deposited on both sides of a suitable substrate.
  • FIG. 10 is an end elevated view of a roll formed filter component where the particulate coated substrate is crimped before being rolled.
  • FIG. 1 illustrates an arrangement for depositing particulate material 10 from a first supply 12 onto a continuous thin flexible substrate 14 .
  • the substrate may be paper or nonwoven material, for example, and the particulate material 10 may comprise any smoke altering particles such as adsorbents, catalysts and flavorants.
  • Adsorbents may include carbon, zeolite, APS silica gel and other adsorbent materials alone or in combination with one another.
  • silica is particularly effective for removing specific aldehydes from tobacco smoke.
  • An electrostatic charge is applied onto the substrate 14 by any suitable mechanism such as the corona discharge device 16 shown in FIG. 1.
  • the strength of the charge is selected in accordance with the thickness of particulate material coated onto the substrate 14 with higher charges producing greater thickness.
  • the substrate becomes coated with the material.
  • the particles may be bound together using small amounts of hot melt binder, if desired.
  • the coated substrate may pass through the nip of a pair of rollers 18 to fuse or otherwise press the particulate material 10 into the substrate 14 , as shown in FIG. 1.
  • the particulate material may be deposited in a single pass or multiple layers may be applied to the substrate.
  • a second supply 12 A of the same or different particulate 10 A deposits another layer on the first deposited layer, and rollers 18 A press the material onto the substrate.
  • the particulate coated substrate 14 is then cut into pieces by cutter 20 and those pieces are deposited into cavities between spaced apart filter components, as explained more fully below.
  • the cut pieces are formed into a cylindrical plug 22 by rolling the coated substrate piece into that configuration.
  • FIGS. 1 and 2 illustrate the plug 22 , and in FIG. 2 flap 24 is ready for folding over to complete the plug form.
  • FIG. 3 illustrates an arrangement for producing a continuous line of plug-space-plug filters.
  • This arrangement includes filter paper 26 with spaced apart plugs 28 of cellulose acetate on the filter paper. Cavities 30 are located between the cellulose acetate plugs, and the plug rolls 22 of particulate coated substrate are deposited into these cavities.
  • the continuous filter of FIG. 3 is cut at 32 into the plug-space-plug filter 34 shown as in FIG. 4.
  • the spaced apart cellulose acetate plugs 28 A and B define the cavity 30 into which the plug roll 22 has been deposited.
  • the filter paper 26 surrounds this assembly.
  • FIG. 5 illustrates an alternative embodiment of the present invention where the filter paper 26 is coated with particulate material 10 B from a source 12 B.
  • an electrostatic charge is applied to the filter paper 26 with charger device 16 .
  • the filter paper 30 with particulate thereon passes through the rollers 18 and thereafter cellulose acetate plugs 28 are appropriately positioned on the coated filter paper.
  • the coated filter paper is ultimately wrapped around the spaced apart cellulose acetate plugs 28 with plows 36 and the continuous filter arrangement is later cut into individual cigarette filter assemblies, such as shown in FIG. 4.
  • the cavities are somewhat hollow and the smoke altering particulate material 10 is in the form of an inside surface layer within the cavity 30 .
  • FIG. 6 shows the filter paper 26 coated with the particulate material 10 B.
  • FIG. 7 illustrates another embodiment of the present invention where the continuous thin flexible substrate 14 is indirectly coated with particulate material 10 C.
  • a rotating transfer roll 30 receives an electrostatic charge from device 16 , and particulate material 10 C is deposited on the charged surface of the roll from a supply 12 C.
  • the particulate material on the surface of the roll is transferred onto substrate 14 by suction, from a plenum 32 , for example.
  • the layer of material 10 C passes through the nip of rollers 18 to fuse or otherwise press the material into the substrate.
  • the coated substrate is subsequently cut and formed into filter pieces, as described above.
  • FIG. 7 also illustrates an optional second transfer station 30 A for depositing another layer on the substrate similar to the system described above in conjunction with FIG. 1.
  • the layer of particulate material 10 D of FIG. 8 is deposited on substrate 14 in pattern form.
  • the charging device may be constructed and arranged to place a pattered charge on the substrate, and the particulate only adheres to the substrate at the charged portions thereof.
  • FIG. 9 shows an arrangement for applying particulate material layers 10 and 10 E on opposite sides of substrate 14 .
  • a first supply 12 of particulate material is located on one side of the substrate and a second supply 12 E is located on the other side of the substrate.
  • An electrostatic charge is applied to both sides of substrate 14 by devices 16 and 16 E. Otherwise the system is similar to FIG. 1, and the coated substrate is formed into filter components in the same manner as described above.
  • FIG. 10 is cross-sectional view of a filter component 40 similar to the one shown in FIG. 2. However, in filter component 40 the substrate 14 coated with particulate material is crimped prior to being roll formed into its final configuration.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Laminated Bodies (AREA)
  • Manufacturing Of Cigar And Cigarette Tobacco (AREA)
  • Filtering Materials (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Catalysts (AREA)
US10/410,626 2003-04-09 2003-04-09 On line formation of recessed cigarette filter Abandoned US20040200491A1 (en)

Priority Applications (20)

Application Number Priority Date Filing Date Title
US10/410,626 US20040200491A1 (en) 2003-04-09 2003-04-09 On line formation of recessed cigarette filter
KR1020117019989A KR101174611B1 (ko) 2003-04-09 2004-04-02 오목형 담배필터
PL07021885T PL1908360T3 (pl) 2003-04-09 2004-04-02 Formowanie wnękowego filtra papierosowego w linii produkcyjnej
AT07021885T ATE442061T1 (de) 2003-04-09 2004-04-02 Fliebbandanfertigung von zigarettenfiltern mit ausnehmungen
PL04725454T PL1610632T3 (pl) 2003-04-09 2004-04-02 Proces technologiczny wytwarzania filtrów papierosowych
BRPI0409254-6A BRPI0409254B1 (pt) 2003-04-09 2004-04-02 processo para produção de filtros de cigarro e elemento de filtro.
PCT/IB2004/001327 WO2004089124A1 (fr) 2003-04-09 2004-04-02 Formation en ligne de filtres de cigarette a concavites
CN2011100727154A CN102100404A (zh) 2003-04-09 2004-04-02 凹下卷烟过滤嘴
AT04725454T ATE398939T1 (de) 2003-04-09 2004-04-02 Fliessbandfertigung von zigarettenfiltern mit ausnehmungen
EP07021885A EP1908360B1 (fr) 2003-04-09 2004-04-02 Formation en ligne d'un filtre à cigarette encastrée
ES07021885T ES2333171T3 (es) 2003-04-09 2004-04-02 Formacion en linea de filtros de cigarrillo acoplados.
DE602004023142T DE602004023142D1 (de) 2003-04-09 2004-04-02 Fließbandanfertigung von Zigarettenfiltern mit Ausnehmungen
ES04725454T ES2305759T3 (es) 2003-04-09 2004-04-02 Formacion en linea de filtros de cigarrillos acoplados.
EP04725454A EP1610632B1 (fr) 2003-04-09 2004-04-02 Formation en ligne de filtres de cigarette a concavites
DE602004014599T DE602004014599D1 (de) 2003-04-09 2004-04-02 Fliessbandfertigung von zigarettenfiltern mit ausnehmungen
RU2005134654/12A RU2342892C2 (ru) 2003-04-09 2004-04-02 Способ изготовления сигаретных фильтров (варианты) и фильтрующая затычка для сигаретного фильтра (варианты)
CN2004800095538A CN1770987B (zh) 2003-04-09 2004-04-02 凹下卷烟过滤嘴的在线形成
JP2006506552A JP4522403B2 (ja) 2003-04-09 2004-04-02 埋込み式シガレット用フィルタのオンライン製造方法
KR1020057018969A KR101174519B1 (ko) 2003-04-09 2005-10-05 오목형 담배필터의 직렬식 생산방법 및 이에 따라 생산된 담배필터
US11/643,155 US7918232B2 (en) 2003-04-09 2006-12-21 On line formation of recessed cigarette filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/410,626 US20040200491A1 (en) 2003-04-09 2003-04-09 On line formation of recessed cigarette filter

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US11/643,155 Division US7918232B2 (en) 2003-04-09 2006-12-21 On line formation of recessed cigarette filter

Publications (1)

Publication Number Publication Date
US20040200491A1 true US20040200491A1 (en) 2004-10-14

Family

ID=33130817

Family Applications (2)

Application Number Title Priority Date Filing Date
US10/410,626 Abandoned US20040200491A1 (en) 2003-04-09 2003-04-09 On line formation of recessed cigarette filter
US11/643,155 Expired - Lifetime US7918232B2 (en) 2003-04-09 2006-12-21 On line formation of recessed cigarette filter

Family Applications After (1)

Application Number Title Priority Date Filing Date
US11/643,155 Expired - Lifetime US7918232B2 (en) 2003-04-09 2006-12-21 On line formation of recessed cigarette filter

Country Status (12)

Country Link
US (2) US20040200491A1 (fr)
EP (2) EP1908360B1 (fr)
JP (1) JP4522403B2 (fr)
KR (2) KR101174611B1 (fr)
CN (2) CN1770987B (fr)
AT (2) ATE398939T1 (fr)
BR (1) BRPI0409254B1 (fr)
DE (2) DE602004023142D1 (fr)
ES (2) ES2305759T3 (fr)
PL (2) PL1908360T3 (fr)
RU (1) RU2342892C2 (fr)
WO (1) WO2004089124A1 (fr)

Cited By (6)

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US20060096605A1 (en) * 2004-11-09 2006-05-11 Philip Morris Usa Inc. Continuous process for surface modification of filter materials
WO2007104908A1 (fr) * 2006-03-10 2007-09-20 British American Tobacco (Investments) Limited Filtre pour article pour fumeur
ITBO20100150A1 (it) * 2010-03-12 2011-09-13 Montrade S R L Metodo per la realizzazione di filtri combinati per articoli da fumo
ITBO20100151A1 (it) * 2010-03-12 2011-09-13 Montrade S R L Metodo per la realizzazione di cordoni di materiale filtrante per articoli da fumo
EA024090B1 (ru) * 2012-03-05 2016-08-31 МОНТРАДЕ С.р.л. Способ и машина для изготовления безбумажных фильтрующих стержней для курительных изделий
CN106822757A (zh) * 2017-01-26 2017-06-13 德钦县升平镇黎德曼扎亚有限公司 可饮用藏香的制作方法

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DE102006049823A1 (de) * 2006-10-19 2008-04-24 Hauni Maschinenbau Ag Vorrichtung und Verfahren zur Aufbereitung von Filtermaterial für Zigarettenfilter oder dergleichen
US20080314400A1 (en) * 2007-05-31 2008-12-25 Philip Morris Usa Inc. Filter including electrostatically charged fiber material
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
HUE038790T2 (hu) 2008-06-02 2018-11-28 Philip Morris Products Sa Átlátszó szakasszal rendelkezõ dohányzási cikk
US8534294B2 (en) 2009-10-09 2013-09-17 Philip Morris Usa Inc. Method for manufacture of smoking article filter assembly including electrostatically charged fiber
US8671951B2 (en) * 2010-03-26 2014-03-18 Philip Morris Usa Inc. Methods of manufacturing cigarettes and filter subassemblies with squeezable flavor capsule
DE102011114522A1 (de) * 2011-09-29 2013-04-04 Focke & Co. (Gmbh & Co. Kg) Verfahren und Vorrichtung zum Herstellen einer Verpackung für eine Gruppe rauchbarer Artikel
ES2630394T3 (es) 2011-11-07 2017-08-21 Philip Morris Products S.A. Artículo para fumar con contenidos visibles
MY168127A (en) 2011-11-07 2018-10-11 Philip Morris Products Sa Smoking article with colour change segment
EP2901871A1 (fr) * 2014-01-31 2015-08-05 Philip Morris Products S.A. Tube de filtre multisegments
US11918034B2 (en) 2019-12-23 2024-03-05 China Tobacco Hunan Industrial Co., Ltd. Device and method for preparing fully granular cigarette/filter rod, and prepared fully granular cigarette/filter rod
CN114190586B (zh) * 2020-09-02 2024-01-19 湖南中烟工业有限责任公司 一种自然增香型减害全颗粒滤棒及其制备方法和应用

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060096605A1 (en) * 2004-11-09 2006-05-11 Philip Morris Usa Inc. Continuous process for surface modification of filter materials
WO2006051416A1 (fr) * 2004-11-09 2006-05-18 Philip Morris Products S.A. Processus continu de modification de surface de materiaux de filtre
US7478637B2 (en) 2004-11-09 2009-01-20 Philip Morris Usa Inc. Continuous process for surface modification of cigarette filter materials
WO2007104908A1 (fr) * 2006-03-10 2007-09-20 British American Tobacco (Investments) Limited Filtre pour article pour fumeur
US8752556B2 (en) 2006-03-10 2014-06-17 British American Tobacco (Investments) Limited Smoking article filter
ITBO20100150A1 (it) * 2010-03-12 2011-09-13 Montrade S R L Metodo per la realizzazione di filtri combinati per articoli da fumo
ITBO20100151A1 (it) * 2010-03-12 2011-09-13 Montrade S R L Metodo per la realizzazione di cordoni di materiale filtrante per articoli da fumo
EA024090B1 (ru) * 2012-03-05 2016-08-31 МОНТРАДЕ С.р.л. Способ и машина для изготовления безбумажных фильтрующих стержней для курительных изделий
CN106822757A (zh) * 2017-01-26 2017-06-13 德钦县升平镇黎德曼扎亚有限公司 可饮用藏香的制作方法

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JP4522403B2 (ja) 2010-08-11
US7918232B2 (en) 2011-04-05
CN1770987B (zh) 2011-04-06
WO2004089124A1 (fr) 2004-10-21
ATE398939T1 (de) 2008-07-15
KR20110100325A (ko) 2011-09-09
EP1610632A1 (fr) 2006-01-04
KR101174611B1 (ko) 2012-08-16
DE602004014599D1 (de) 2008-08-07
CN1770987A (zh) 2006-05-10
RU2005134654A (ru) 2006-05-10
EP1908360B1 (fr) 2009-09-09
US20070102012A1 (en) 2007-05-10
BRPI0409254A (pt) 2006-03-28
KR20050113672A (ko) 2005-12-02
PL1610632T3 (pl) 2008-12-31
ES2305759T3 (es) 2008-11-01
PL1908360T3 (pl) 2010-02-26
RU2342892C2 (ru) 2009-01-10
BRPI0409254B1 (pt) 2012-07-10
EP1908360A1 (fr) 2008-04-09
JP2006522600A (ja) 2006-10-05
ES2333171T3 (es) 2010-02-17
EP1610632B1 (fr) 2008-06-25
KR101174519B1 (ko) 2012-08-16
ATE442061T1 (de) 2009-09-15
CN102100404A (zh) 2011-06-22

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