EP1959053A1 - Dispositif de séchage d'une bande de matière fibreuse - Google Patents

Dispositif de séchage d'une bande de matière fibreuse Download PDF

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Publication number
EP1959053A1
EP1959053A1 EP08150640A EP08150640A EP1959053A1 EP 1959053 A1 EP1959053 A1 EP 1959053A1 EP 08150640 A EP08150640 A EP 08150640A EP 08150640 A EP08150640 A EP 08150640A EP 1959053 A1 EP1959053 A1 EP 1959053A1
Authority
EP
European Patent Office
Prior art keywords
supply air
fibrous web
suction roll
suction
air chamber
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.)
Granted
Application number
EP08150640A
Other languages
German (de)
English (en)
Other versions
EP1959053B1 (fr
Inventor
Christian MÜNCH
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.)
Voith Patent GmbH
Original Assignee
Voith Patent GmbH
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 Voith Patent GmbH filed Critical Voith Patent GmbH
Priority to PL08150640T priority Critical patent/PL1959053T3/pl
Publication of EP1959053A1 publication Critical patent/EP1959053A1/fr
Application granted granted Critical
Publication of EP1959053B1 publication Critical patent/EP1959053B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F5/00—Dryer section of machines for making continuous webs of paper
    • D21F5/18—Drying webs by hot air
    • D21F5/182—Drying webs by hot air through perforated cylinders
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F11/00—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines
    • D21F11/006—Making patterned paper
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F5/00—Dryer section of machines for making continuous webs of paper
    • D21F5/02—Drying on cylinders
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F5/00—Dryer section of machines for making continuous webs of paper
    • D21F5/20—Waste heat recovery

Definitions

  • the invention has for its object to provide an improved device and an improved machine of the type mentioned.
  • the device or machine should be optimized in particular to the effect that the energy required for the hot-air drying process energy consumption is reduced to a minimum.
  • the drying device comprises an impingement or so-called impingement drying device.
  • the supply air chamber and the discharge chamber may be arranged on the same side of the fibrous web.
  • the supply air chamber and the exhaust air chamber preferably form a common space.
  • the drying device comprises a flow-through drying device.
  • the Zu Kunststoffsch and the exhaust chamber are preferably on opposite sides of the fibrous web.
  • an overpressure in the range of about 0 to about 0.5 bar and preferably in a range of about 0.002 to about 0.3 bar prevails.
  • a negative pressure in a range of about 0 to about 0.8 bar and preferably in a range of about 0.2 to about 0.7 bar prevails.
  • a negative pressure prevails in the exhaust air chamber in a range from about 0.4 to about 0.7 bar.
  • the pressure increasing device comprises at least one fan, which may be, for example, a multi-stage fan or a single-stage fan.
  • a blower in question is sold under the name "Tubair”.
  • the pressure increasing device may also comprise at least one radial fan and / or at least one axial fan.
  • the temperature of the supply air or supply air portion originating from the pressure increasing device is preferably ⁇ 100 ° C, in particular ⁇ 150 ° C and preferably ⁇ 200 ° C.
  • the supply air chamber is supplied at least substantially 100% of the supply air from the pressure side of the pressure increasing device.
  • the heating device may in particular comprise a gas burner, a gas turbine and / or the like.
  • the fibrous web can be guided in particular together with a permeable structured band on the suction roll, wherein the fibrous web between the permeable structured band and the suction roll is and the hot air from the hood successively through the permeable structured band and the fibrous web into the suction box of Suction roll flows.
  • a dewatering belt may be passed around the suction roll, which is between the suction roll and the permeable structured strip and through which the hot supply air flows into the suction box of the suction roll.
  • the supply air supplied to the supply air can be partially removed from a hood, which is associated with a drying cylinder, in particular Yankee cylinder which forms a nip together with a pressing element through which the fibrous web is passed after the suction roll.
  • the hot air taken from the hood assigned to the drying cylinder can be fed, in particular as supplementary air, to a pressure-side nozzle and / or a suction-side nozzle of the pressure-increasing device.
  • At least one water separator is provided in an exhaust air discharge line connected to the exhaust air chamber, in a suction-side pipe of the pressure-increasing device and / or in a pressure-side pipe of the pressure-increasing device.
  • the water separator is preferably provided in the flow direction of the recirculated exhaust air in front of the increase of the supply air temperature serving heater and / or provided before the point at which the hood of the drying cylinder removed hot air is supplied.
  • the machine according to the invention for producing a fibrous web provided with a three-dimensional surface structure, in particular a paper, board or tissue web is characterized in that it is provided with a fibrous web according to the invention Drying device is provided, wherein the exhaust chamber formed by the suction box of a suction roll and the Zu Kunststoffsch by a suction roller associated hood and the fibrous web is guided together with a permeable structured band on the suction roll, and wherein the fibrous web between the permeable structured band and the suction roll is located and the hot supply air from the hood successively flows through the permeable structured band and the fibrous web into the suction box of the roller.
  • the permeable structured band and the fibrous web are pressed against the suction roll via a permeable pressing belt, wherein the hot supply air from the hood successively through the permeable press belt, the permeable structured band and the fibrous web into the suction box of Suction roll flows.
  • a dewatering belt may be passed around the suction roll, which is between the suction roll and the permeable structured strip and through which the hot supply air flows into the suction box of the suction roll.
  • Fig. 1 shows a schematic representation of a machine 10 for producing a provided with a three-dimensional surface structure fibrous web 12, which is provided with a device comprising a hot air circuit 14 for drying the fibrous web 12.
  • the fibrous web 12 may in particular be a paper, board or tissue web.
  • the drying device 14 comprises a suction roll 16 with a suction box 18 forming an exhaust air chamber and a hood 20 associated with the suction roll 16 and forming a supply air chamber.
  • the fibrous web 12 is guided together with a permeable structured band 22 on the suction roller 16, wherein the fibrous web 12 between the permeable structured band 22 and the suction roller 16 is located.
  • the permeable structured band 22 and the fibrous web 12 are pressed for example by a permeable pressing belt 24 against the suction roller 16.
  • a permeable pressing belt 24 against the suction roller 16.
  • the hot air from the hood 20 successively flows through the permeable press belt 24, the permeable structured belt 22 and the fibrous web 12 into the suction box 18 of the suction roller 16.
  • a dewatering belt 36 may be passed around the suction roll 16 which lies between the suction roll 16 and the permeable structured ribbon 22 and through which the hot supply air flows into the suction box 18 of the suction roll 16.
  • the permeable press belt 24, the permeable structured belt 22, the fibrous web 12 and the dewatering belt 36 are successively flowed through by the supply air.
  • the machine 10 further comprises a former with two converging drainage belts 22, 26, wherein the inner belt simultaneously forms the permeable structured belt 22 in the present case.
  • the two drainage tapes 22, 26 converge to form a stock inlet gap 28 and are passed over a forming element 30 such as in particular a forming roller.
  • the permeable structured band 22 is formed by the inner dewatering band of the former coming into contact with the forming element 30.
  • the outer dewatering belt 26, which does not come into contact with the forming element 30, is separated again from the fibrous web 12 and the permeable structured belt 22 carrying it after the forming element 30.
  • the pulp suspension is introduced into the stock inlet gap 28.
  • a suction element 14 is provided, through which the fibrous web 12 is held on the permeable structured band 22 or pressed against this permeable structured band 22.
  • the dewatering belt 36 is again separated from the permeable structured belt 22 and the fibrous web 12.
  • a pickup or separating element 38 is provided behind the drying device 14, through which the fibrous web 12 is held at the separation of the dewatering belt 36 to the permeable structured belt 22.
  • the fibrous web 12 is guided together with the permeable structured band 22 by a press nip 44 formed between a drying cylinder 40 preferably formed by a Yankee cylinder and a pressing element 42, such as a press roll. Behind this press nip 44, the permeable structured band 22 is again separated from the drying cylinder (40), while the fibrous web 12 remains on the drying cylinder 40.
  • the drying cylinder 40 is associated with a hood 46.
  • drying cylinder 40 may be associated with a spray tube 48 for coating or the like.
  • the hot air taken from the hood 40 associated with the drying cylinder 40 can also be supplied to the pressure-side nozzle and / or the suction-side nozzle of the pressure-increasing device 56 as supplementary air.
  • a further pressure increasing device 70 may be arranged.
  • a filter 72 may be provided in this supply line 68.
  • a control valve 74 may be arranged in the supply air supply line 60 between the booster 56 and the drying device 14.
  • Fig. 2 shows a schematic cross-sectional view of an exemplary embodiment of the pressure increasing device 56, which can be designed here as a single-stage fan I or as a multi-stage fan II.
  • this fan can be expediently provided with terminals Q Zi for different vacuum heights.
  • the suction roller 16 is associated with the hood 20 at least substantially in the region of the suction box 18.
  • This is supplied with hot and dry as possible supply air, which by the permeable or open structured band 22, which may be in particular a screen, covered fibrous web 12 flows and is discharged via the suction box 18 as exhaust air again. It has been found to be beneficial for an efficient drying process when the air temperature is ⁇ 100 ° C. This is particularly important when steam is used to heat the fibrous web 12.
  • the hood intake air and the suction roll exhaust air are now at least partly recirculated via the pressure increasing device 56.
  • the arrangement is selected on the one hand so that the temperature increase is used by the occurring in the temperature increase device 56 compression for increasing the dewatering process, while on the other hand, the heat exhaust air is reused.
  • supplementary air can be supplied to the pressure-side connection piece and / or the suction-side connection piece of the pressure increase device 56.
  • a condensation device for removing the water in the exhaust air can also be provided.
  • a heater for the supply air is conceivable, in particular to have a control and / or adjustment for the air temperature.

Landscapes

  • Paper (AREA)
  • Treatment Of Fiber Materials (AREA)
EP08150640A 2007-02-13 2008-01-25 Machine pour fabriquer une band de matière fibreuse avec un dispositif de séchage de la bande au moyen d'air chaud Not-in-force EP1959053B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL08150640T PL1959053T3 (pl) 2007-02-13 2008-01-25 Maszyna do wytwarzania wstęgi materiału włóknistego z urządzeniem do suszenia wstęgi materiału włóknistego za pomocą gorącego powietrza

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007006960A DE102007006960A1 (de) 2007-02-13 2007-02-13 Vorrichtung zur Trocknung einer Faserstoffbahn

Publications (2)

Publication Number Publication Date
EP1959053A1 true EP1959053A1 (fr) 2008-08-20
EP1959053B1 EP1959053B1 (fr) 2010-12-22

Family

ID=39472454

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08150640A Not-in-force EP1959053B1 (fr) 2007-02-13 2008-01-25 Machine pour fabriquer une band de matière fibreuse avec un dispositif de séchage de la bande au moyen d'air chaud

Country Status (7)

Country Link
US (1) US8196314B2 (fr)
EP (1) EP1959053B1 (fr)
AT (1) ATE492685T1 (fr)
CA (1) CA2620781A1 (fr)
DE (2) DE102007006960A1 (fr)
ES (1) ES2355689T3 (fr)
PL (1) PL1959053T3 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009000753A1 (de) 2009-02-11 2010-08-12 Voith Patent Gmbh Verfahren und Vorrichtung zur Trocknung einer Faserstoffbahn
RU2519930C2 (ru) * 2007-11-20 2014-06-20 Олбани Интернешнл Корп. Структурирующая лента, прессовая часть и машина для изготовления бумажных салфеток, предназначенные для изготовления полотна для толстых крепированных бумажных салфеток, и соответствующий способ
EP2896743A1 (fr) 2014-01-20 2015-07-22 Valmet S.p.A. Procédé et machine de fabrication d'une bande de papier de soie
US11118311B2 (en) * 2018-11-20 2021-09-14 Structured I, Llc Heat recovery from vacuum blowers on a paper machine

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007006960A1 (de) * 2007-02-13 2008-08-14 Voith Patent Gmbh Vorrichtung zur Trocknung einer Faserstoffbahn
NZ594515A (en) 2009-02-11 2013-01-25 Sca Hygiene Prod Ab Device and method for drying a tissue paper web using steam recapture
DE102009001872A1 (de) 2009-03-26 2010-09-30 Voith Patent Gmbh System zur computergestützten Optimierung des Gesamtwirkungsgrades einer Produktionsanlage
DE102011075678A1 (de) 2011-05-11 2012-11-15 Voith Patent Gmbh System zur computergestützten Optimierung des Energieverbrauchs einer Produktionsanlage
US8968517B2 (en) 2012-08-03 2015-03-03 First Quality Tissue, Llc Soft through air dried tissue
EP2775030B1 (fr) 2013-03-06 2015-09-09 Valmet S.p.A. Dispositif de séchage d'une bande de papier mousseline et procédé de récupération de vapeur pendant le séchage d'une bande de papier tissu
MX2016014887A (es) 2014-05-16 2018-03-01 First Quality Tissue Llc Toallita lavable y metodo para formarla.
US9988763B2 (en) 2014-11-12 2018-06-05 First Quality Tissue, Llc Cannabis fiber, absorbent cellulosic structures containing cannabis fiber and methods of making the same
MX2017006716A (es) 2014-11-24 2018-03-21 First Quality Tissue Llc Papel tisu suave producido usando una tela estructurada y prensado energetico eficiente.
US10099425B2 (en) 2014-12-05 2018-10-16 Structured I, Llc Manufacturing process for papermaking belts using 3D printing technology
US9719213B2 (en) * 2014-12-05 2017-08-01 First Quality Tissue, Llc Towel with quality wet scrubbing properties at relatively low basis weight and an apparatus and method for producing same
FR3030705A1 (fr) * 2014-12-17 2016-06-24 Andritz Perfojet Sas Installation de sechage d'un voile de non-tisse humide
US10538882B2 (en) 2015-10-13 2020-01-21 Structured I, Llc Disposable towel produced with large volume surface depressions
WO2017066465A1 (fr) 2015-10-13 2017-04-20 First Quality Tissue, Llc Serviette jetable à cavités de surface de grand volume
EP3362366A4 (fr) 2015-10-14 2019-06-19 First Quality Tissue, LLC Produit empaqueté et système et procédé pour former celui-ci
US10208426B2 (en) 2016-02-11 2019-02-19 Structured I, Llc Belt or fabric including polymeric layer for papermaking machine
US10240292B2 (en) * 2016-02-29 2019-03-26 Kimberly-Clark Worldwide, Inc. Through-air drying apparatus and methods of manufacture
US20170314206A1 (en) 2016-04-27 2017-11-02 First Quality Tissue, Llc Soft, low lint, through air dried tissue and method of forming the same
MX2019002123A (es) 2016-08-26 2019-08-16 Metodo para producir estructuras absorbentes con alta resistencia a la humedad, absorbencia, y suavidad.
MX2019002752A (es) 2016-09-12 2019-08-29 Dispositivo de formacion de un activo depositado por via humeda utilizando un tejido estructurado como hilo externo.
US11583489B2 (en) 2016-11-18 2023-02-21 First Quality Tissue, Llc Flushable wipe and method of forming the same
US10619309B2 (en) 2017-08-23 2020-04-14 Structured I, Llc Tissue product made using laser engraved structuring belt
MX2020012258A (es) 2018-05-15 2021-01-29 Proceso de fabricación de papel de correas sin fin utilizando tecnología de impresión 3d.
CN112292489B (zh) * 2018-05-31 2021-11-09 瓦尔梅特股份有限公司 空气穿透干燥和粘合系统及方法
DE102018114748A1 (de) 2018-06-20 2019-12-24 Voith Patent Gmbh Laminierte Papiermaschinenbespannung
US11697538B2 (en) 2018-06-21 2023-07-11 First Quality Tissue, Llc Bundled product and system and method for forming the same
US11738927B2 (en) 2018-06-21 2023-08-29 First Quality Tissue, Llc Bundled product and system and method for forming the same
US11098453B2 (en) 2019-05-03 2021-08-24 First Quality Tissue, Llc Absorbent structures with high absorbency and low basis weight
CA3081992A1 (fr) 2019-06-06 2020-12-06 Structured I, Llc Machine a papier qui utilise seulement un tissu structure dans la formation du papier
MX2023007263A (es) 2020-12-17 2023-10-09 First Quality Tissue Llc Estructuras absorbentes desechables tendidas en húmedo con alta resistencia en húmedo y procedimiento de producción de las mismas.
SE2230174A1 (en) * 2022-06-01 2023-12-02 Valmet Oy A machine for producing a fibrous web
US11976421B2 (en) 2022-06-16 2024-05-07 First Quality Tissue, Llc Wet laid disposable absorbent structures with high wet strength and method of making the same
US11952721B2 (en) 2022-06-16 2024-04-09 First Quality Tissue, Llc Wet laid disposable absorbent structures with high wet strength and method of making the same

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US3447247A (en) * 1967-12-18 1969-06-03 Beloit Corp Method and equipment for drying web material
GB2122322A (en) * 1982-06-23 1984-01-11 Kimberly Clark Co Drying webs
US4615122A (en) * 1984-04-09 1986-10-07 Kimberly-Clark Corporation Method for providing steam and hot air for hooded drying cylinders
WO1996029467A1 (fr) * 1995-03-20 1996-09-26 James River Procede d'essorage d'une feuille de matiere cellulosique par air chaud traversant sous haut vide, dispositif de mise en ×uvre du procede et produit obtenu
CA2262397A1 (fr) * 1998-02-24 1999-08-24 David R. Webster Methode et appareil de sechage d'une toile humide
WO2001000925A1 (fr) * 1999-06-29 2001-01-04 Valmet-Karlstad Ab Appareil et procede permettant de fabriquer du papier de soie texture
WO2003000988A1 (fr) * 2001-06-26 2003-01-03 Metso Paper, Inc. Systeme de convection dans l'unite de sechage d'une machine a papier ou analogue
US20050132598A1 (en) * 2003-12-19 2005-06-23 Kimberly-Clark Worldwide, Inc. Method and system for heat recovery in a throughdrying tissue making process
US20050167061A1 (en) * 2004-01-30 2005-08-04 Scherb Thomas T. Paper machine dewatering system

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US4103434A (en) * 1972-05-30 1978-08-01 Richard Turner Walker Drying apparatus
AT363320B (de) * 1978-02-03 1981-07-27 Walli Papier Zellstoffwatte Durchstroemungstrockner zum trocknen eines faservlieses oder einer papierbahn
US4326342A (en) * 1980-08-07 1982-04-27 Midland-Ross Corporation Multi-zone oven with cool air modulation
SE470134B (sv) * 1992-04-23 1993-11-15 Valmet Karlstad Ab Sätt att bygga om en konventionell tissuemaskin till en TAD- maskin, samt en därvid lämplig dubbelviraformare av "C-wrap"- typ
FI104000B1 (fi) * 1998-04-03 1999-10-29 Valmet Corp Telan, sylinterin tai vastaavan ympärille sovitettu päällepuhallusjärjestelmä paperikoneen tai vastaavan kuivatusosassa
US6199296B1 (en) * 1999-12-16 2001-03-13 Valmet-Karlstad Ab Seal arrangement for through-air drying papermaking machine
US6752907B2 (en) * 2001-01-12 2004-06-22 Georgia-Pacific Corporation Wet crepe throughdry process for making absorbent sheet and novel fibrous product
US6904700B2 (en) * 2003-09-12 2005-06-14 Kimberly-Clark Worldwide, Inc. Apparatus for drying a tissue web
US7510631B2 (en) * 2004-10-26 2009-03-31 Voith Patent Gmbh Advanced dewatering system
DE102007006960A1 (de) * 2007-02-13 2008-08-14 Voith Patent Gmbh Vorrichtung zur Trocknung einer Faserstoffbahn

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3447247A (en) * 1967-12-18 1969-06-03 Beloit Corp Method and equipment for drying web material
GB2122322A (en) * 1982-06-23 1984-01-11 Kimberly Clark Co Drying webs
US4615122A (en) * 1984-04-09 1986-10-07 Kimberly-Clark Corporation Method for providing steam and hot air for hooded drying cylinders
WO1996029467A1 (fr) * 1995-03-20 1996-09-26 James River Procede d'essorage d'une feuille de matiere cellulosique par air chaud traversant sous haut vide, dispositif de mise en ×uvre du procede et produit obtenu
CA2262397A1 (fr) * 1998-02-24 1999-08-24 David R. Webster Methode et appareil de sechage d'une toile humide
WO2001000925A1 (fr) * 1999-06-29 2001-01-04 Valmet-Karlstad Ab Appareil et procede permettant de fabriquer du papier de soie texture
WO2003000988A1 (fr) * 2001-06-26 2003-01-03 Metso Paper, Inc. Systeme de convection dans l'unite de sechage d'une machine a papier ou analogue
US20050132598A1 (en) * 2003-12-19 2005-06-23 Kimberly-Clark Worldwide, Inc. Method and system for heat recovery in a throughdrying tissue making process
US20050167061A1 (en) * 2004-01-30 2005-08-04 Scherb Thomas T. Paper machine dewatering system

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2519930C2 (ru) * 2007-11-20 2014-06-20 Олбани Интернешнл Корп. Структурирующая лента, прессовая часть и машина для изготовления бумажных салфеток, предназначенные для изготовления полотна для толстых крепированных бумажных салфеток, и соответствующий способ
DE102009000753A1 (de) 2009-02-11 2010-08-12 Voith Patent Gmbh Verfahren und Vorrichtung zur Trocknung einer Faserstoffbahn
WO2010091950A1 (fr) 2009-02-11 2010-08-19 Voith Patent Gmbh Procédé et dispositif pour sécher une bande de matière fibreuse
CN102317540A (zh) * 2009-02-11 2012-01-11 沃依特专利有限责任公司 用于干燥纤维幅的方法和装置
CN102317540B (zh) * 2009-02-11 2014-12-03 沃依特专利有限责任公司 用于干燥纤维幅的方法和装置
US9328460B2 (en) 2009-02-11 2016-05-03 Voith Patent Gmbh Method and device for drying a fibrous web
EP2896743A1 (fr) 2014-01-20 2015-07-22 Valmet S.p.A. Procédé et machine de fabrication d'une bande de papier de soie
WO2015107094A1 (fr) 2014-01-20 2015-07-23 Valmet S.P.A. Procédé et machine permettant de fabriquer une feuille continue de papier de soie
US11118311B2 (en) * 2018-11-20 2021-09-14 Structured I, Llc Heat recovery from vacuum blowers on a paper machine
US11891759B2 (en) 2018-11-20 2024-02-06 Structured I, Llc. Heat recovery from vacuum blowers on a paper machine

Also Published As

Publication number Publication date
CA2620781A1 (fr) 2008-08-13
EP1959053B1 (fr) 2010-12-22
DE502008002037D1 (de) 2011-02-03
US20080189981A1 (en) 2008-08-14
DE102007006960A1 (de) 2008-08-14
ATE492685T1 (de) 2011-01-15
US8196314B2 (en) 2012-06-12
ES2355689T3 (es) 2011-03-30
PL1959053T3 (pl) 2011-05-31

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