EP2160496B1 - Procédé de production d'une bande de papier couché principalement sans bois - Google Patents

Procédé de production d'une bande de papier couché principalement sans bois Download PDF

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Publication number
EP2160496B1
EP2160496B1 EP08760881A EP08760881A EP2160496B1 EP 2160496 B1 EP2160496 B1 EP 2160496B1 EP 08760881 A EP08760881 A EP 08760881A EP 08760881 A EP08760881 A EP 08760881A EP 2160496 B1 EP2160496 B1 EP 2160496B1
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EP
European Patent Office
Prior art keywords
paper web
calender
led
web
application
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.)
Revoked
Application number
EP08760881A
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German (de)
English (en)
Other versions
EP2160496A2 (fr
Inventor
John Bergman
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
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Application filed by Voith Patent GmbH filed Critical Voith Patent GmbH
Publication of EP2160496A2 publication Critical patent/EP2160496A2/fr
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Revoked legal-status Critical Current
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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F9/00—Complete machines for making continuous webs of paper
    • D21F9/003—Complete machines for making continuous webs of paper of the twin-wire type
    • 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
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00—Press section of machines for making continuous webs of paper
    • D21F3/02—Wet presses
    • D21F3/04—Arrangements thereof
    • D21F3/045—Arrangements thereof including at least one extended press nip
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/80—Paper comprising more than one coating
    • D21H19/82—Paper comprising more than one coating superposed
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/16—Sizing or water-repelling agents
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/22—Addition to the formed paper
    • D21H23/24—Addition to the formed paper during paper manufacture
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/22—Addition to the formed paper
    • D21H23/46—Pouring or allowing the fluid to flow in a continuous stream on to the surface, the entire stream being carried away by the paper
    • D21H23/48—Curtain coaters
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/22—Addition to the formed paper
    • D21H23/50—Spraying or projecting
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H25/00—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
    • D21H25/08—Rearranging applied substances, e.g. metering, smoothing; Removing excess material
    • D21H25/12—Rearranging applied substances, e.g. metering, smoothing; Removing excess material with an essentially cylindrical body, e.g. roll or rod
    • D21H25/14—Rearranging applied substances, e.g. metering, smoothing; Removing excess material with an essentially cylindrical body, e.g. roll or rod the body being a casting drum, a heated roll or a calender

Definitions

  • the invention relates to a method for producing a substantially wood-free coated paper web containing a fiber content of more than 55% pulp fibers, wherein applied to at least one web page a double line and thereby the last line application by means of a contactless application method in the form of a curtain applicator (32 ) is applied and wherein a precoat is applied by means of a film applicator (18,24) or a contactless application method.
  • the fiber content of the substance input consists of at least 85% pulp fibers (NBKP (needle bleached kraft pulp, long fiber), LBKP (leaf bleached kraft pulp, short fiber)).
  • the paper web is painted after Vorkalandr mich at least one means for applying liquid or pasty application medium at least on one side and then dried by means of at least one drying device.
  • the paper web is simply painted on a first side before its Vorkalandr réelle by means of a film or a curtain applicator.
  • the invention has for its object to provide an improved method of the type mentioned, with which the time efficiency potential of the papermaking process is significantly improved for a double line on at least one web page.
  • this object is achieved by the features of claim 1.
  • a method for producing an at least substantially wood-free coated paper web in which the fiber content of the paper web consists of less than 75% pulp fibers and the paper web is produced with a filler content> 10% with a basis weight ⁇ 90 g / m 2 or a filler content> 12% with a basis weight ⁇ 90 g / m 2 .
  • An important aspect of the invention is the avoidance of direct application coating application systems which operate with stationary squeegee elements such as, for example, so-called blade coaters.
  • the resulting load on the web due to the relative speed between doctor and web increases the number of breaks. Therefore, according to the invention, at least the last application device operates without contact.
  • the fiber content of the substance input of less than 60% pulp fibers (NBKP (needle bleached kraft pulp, long fiber), LBKP (leaf bleached kraft pulp, short fiber)) exist.
  • the remainder may consist of wood-containing fibers (e.g., groundwood, BCTMP-SF (bleached chemothermomechanical pulp, short fiber)).
  • a paper web from this substance entry, which contains a proportion of pulp fibers of more than 55%, is hereinafter referred to as "essentially wood-free paper web".
  • essentially wood-free paper web Compared to the prior art can be reduced by the inventive solution, the entry of expensive fibers, with the same or better quality of the line.
  • the fiber content in the paper web essentially corresponds to that of the substance input, whereby differences in the fiber content between the substance input and the paper web can arise due to the retention.
  • the precoat is applied by means of a film applicator or by means of a contactless application method.
  • the application is applied by means of a surface moving with the web, as is the case, for example, with a film applicator. This reduces the stress on the web compared to the blade application process.
  • the paper web is expediently passed through a Vorglätttechnik before the application of the color precoat.
  • the paper web is preferably passed through a calender after application of the glue application.
  • the consistency may be> 12%, preferably> 15% and in particular> 20%.
  • the paper web is guided in a closed train through the press section. It is therefore provided in this case in the press section a closed web guide, in which the web is supported in particular by means of a covering and / or provided in the press felt, transfer belt, etc.
  • the paper web is guided in the press section by only one shoe press with only one nip.
  • the paper web in the press section can also be guided by a plurality of shoe presses arranged one behind the other, each with a wide nip.
  • the paper web is also guided by at least one calender.
  • the paper web can be guided, for example, by at least one calender with a soft nip which is formed between two calender rolls, of which at least one is provided with a soft plastic cover, in particular in comparison to steel rolls or chill rolls.
  • the paper web can also be guided through at least one calender with a hard nip which is formed between two calender rolls, in particular steel rolls and / or chill rolls, each of which has a hard roll surface, in particular in comparison to a plastic cover.
  • the paper web can also be passed through at least one calender, in particular shoe calender or metal belt calender, with a long nip extended in the running running direction.
  • the additional advantage associated with the curtain coating method is that even at low application weights, a significantly higher application weight coverage can be achieved. This results in a significant improvement in the ability to shift ash from the coating layer to the filler, resulting in significant cost savings for the papermaker.
  • Paper quality can be optimized by adequately precalendering the paper prior to application using the curtain applicator or applicator units.
  • the optimum quality range for the total on-line concept is the range of about 60 to about 200 g / m 2 , especially in the range of about 80 to about 150 g / m 2 .
  • the final calendering of the paper can advantageously be done online or, if necessary, offline.
  • the main advantage of the curtain coating method compared to a conventional blade coating method is that the efficiency of calendering is much higher, while reducing the risk of deposits on the calender rolls.
  • the paper web produced by the process according to the invention preferably has a filler content> 12% with a basis weight ⁇ 90 g / m 2 or a filler content> 14% with a basis weight ⁇ 90 g / m 2 .
  • the paper web has a top coat with a coating weight ⁇ 10, in particular ⁇ 9 and preferably ⁇ 8 g / (m 2 ⁇ side) at a basis weight ⁇ 90 g / m 2 or with a coating weight ⁇ 16, in particular ⁇ 14 and preferably ⁇ 12 g / (m 2 ⁇ page) at a basis weight> 90 g / m 2 on.
  • Fig. 1 1 shows a schematic representation of an exemplary embodiment of an apparatus 10 for producing an at least substantially wood-free coated paper web with a wire section 12, a press section 14 of a pre-dryer section 16, a device 18 for applying a glue application, an after-dryer section 20, a smoothing or pre-calendering unit 22, a device 24 for applying a paint application, a drying device 26 and a reel-up 28.
  • the means 18 for applying a glue application and the means 24 for applying an application of paint can each be, for example, a film applicator.
  • two contactless application devices 30, 32 for double-sided application which are each designed as a curtain application device, are preferably provided as last application devices.
  • the optimum quality range for the overall online concept is the range between 60 to about 200 g / m 2 , in particular in the range of about 80 and 150 g / m 2 .
  • the final calendering of the paper web can advantageously take place online or, if necessary, also offline.
  • the advantages of a curtain coating process compared to a conventional doctor blade coating process This is because the calendering efficiency is much higher, while the risk of deposits on the calender rolls is reduced.
  • the device thus comprises means for applying at least one double line to at least one side of the web, wherein a curtain application device is provided for applying the last coating application.
  • a film applicator or a contactless applicator is provided.
  • the device 24 may be provided for applying a color pre-coat, wherein Vorglätttechnik 22 is preferably provided in front of this device 24.
  • the device 18 for applying a glue application is arranged between the pre-drying section 16 and the after-drying section 20.
  • the calender 22 is provided following the pre-drying section 20.
  • the paper web is preferably guided in a closed train through the press section 14.
  • the paper web can be guided in the press section by only one shoe press with only one shoe press nip or by a plurality of successively arranged shoe presses, each with a shoe press nip.
  • the device 10 further preferably comprises at least one calender 34, which in the present case is, for example, between the means 24 for application the paint application or the drying device 26 and the reel 28 is arranged.
  • At least one calender can be provided with a soft nip which is formed between two calender rolls, of which at least one is provided with a soft plastic cover, for example, in comparison to steel rolls.
  • At least one calender with a hard nip can be provided, which is formed between two calender rolls, in particular steel rolls, each having a hard surface.
  • At least one calender in particular shoe calender or metal belt calender can be provided with a long nip extended in the running direction.
  • the wire section 12 preferably comprises a gap former.
  • At least one high-performance dryer 36 may be provided after the press section 14.
  • a high-performance dryer 36 for example, at least one impingement dryer (see. Fig. 2 ) or, for example, comprise at least one drying cylinder whose surface temperature is> 120 ° C and preferably 130 ° C.
  • the paper web after the high-performance dryer 36 has a dry content> 63%.
  • a single-row pre-dryer section 16 may be provided after the high-performance dryer 36, for example.
  • the wire section 12 may in particular comprise a gap former again.
  • the press section 14 comprises a press 38 with a suction press roll 40 and a nip, through which the paper web 42 is passed together with a top felt 44 and a bottom felt 46.
  • the press 44 is followed by a shoe press 48, through whose broad nip the paper web 42 is guided together with a top felt 50 and a bottom band 52, which may be, for example, a felt or a transfer belt.
  • the high-performance dryer 36 is provided, which here comprises, for example, a single-drum dryer.
  • at least one drying cylinder may be provided, whose surface temperature is> 120 ° C. and preferably> 130 ° C.
  • the high-performance dryer 36 is followed by the preferably single-row pre-drying section 16.
  • This pre-drying section 16 is followed again by a device 18 for applying a glue application, which again comprises a film applicator in the present case.
  • Fig. 2b can be removed, in the web running direction L after the means 18 for applying a glue application successively a drying device 54, a smoothing or Vorglätttechnik 22, a film applicator 56, a drying device 58, a lower web curtain applicator 60, a web top curtain applicator 62, a non-contact diverter 64 such as an air turn, an impingement dryer 66, optionally a calender 68, a cylinder group 70 such as one Pull and / or cooling group and a reel 28 is provided.
  • a drying device 54 a smoothing or Vorglätttechnik 22
  • a film applicator 56 a drying device 58
  • a lower web curtain applicator 60 a web top curtain applicator 62
  • a non-contact diverter 64 such as an air turn
  • an impingement dryer 66 optionally a calender 68
  • a cylinder group 70 such as one Pull and / or cooling group and a reel 28 is provided.
  • an air boundary layer suction 72 or 74 can be provided for higher speeds in each case in order to ensure a good coating quality.
  • Fig. 3 1 schematically shows an exemplary embodiment of an arrangement comprising two curtain applicators 30, 32 for the application of coating color to both sides of the web in the contactless method.
  • a drying device 76 is provided following this arrangement.
  • Fig. 4 shows a diagram in which the covering behavior of a curtain applicator is compared to the covering behavior of a blade coater.
  • the coverage [%] of the coating weight [g / m 2 ] for a blade coater and a curtain applicator is shown in this diagram.
  • the cover can be determined, for example, as an area fraction of the coating order for which the thickness of the coating application exceeds a certain minimum thickness of, for example, 1 micron.
  • the inventive method is an at least substantially wood-free coated paper web having a filler content> 10% and preferably> 12% at a basis weight ⁇ 90 g / m 2 or with a filler content> 12%, preferably> 14% with a basis weight ⁇ 90 g / m 2 produced.
  • the paper web preferably has a cover coat having a coating weight ⁇ 10, in particular ⁇ 9 and preferably ⁇ 8 g / (m 2 ⁇ side) at a basis weight ⁇ 90 g / m 2 or with a coating weight ⁇ 16, in particular ⁇ 14 and preferably ⁇ 12 g / (m 2 ⁇ page) at a basis weight> 90 g / m 2 on.
  • the present invention thus relates to the production process of at least substantially woodfree coated papers, in particular to the sequences of inking methods, glue application methods and smoothing devices and to filler contents in paper and line weights.

Landscapes

  • Paper (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Claims (12)

  1. Procédé de fabrication d'une bande de papier (42) couché essentiellement sans bois, qui contient une proportion fibreuse de fibres de cellulose de plus de 55 % et de moins de 75 %, une double couche étant appliquée sur au moins un côté de la bande et en l'occurrence la dernière enduction de couche étant appliquée au moyen d'un procédé d'enduction sans contact en forme de dispositif d'enduction à rideau (32) et une couche primaire étant appliquée au moyen d'un dispositif d'enduction en film (18, 24) ou d'un procédé d'enduction sans contact, et la bande de papier étant fabriquée avec une teneur en charge > 10 % pour un grammage < 90 g/m2 ou avec une teneur en charge > 12 % pour un grammage ≥ 90 g/m2.
  2. Procédé selon la revendication 1,
    caractérisé en ce que
    qu'après un pré-séchage de la bande de papier, on applique en tant que couche primaire une couche en couleur et la bande de papier (42) est guidée à travers une pré-lisseuse (22) avant l'application de la couche primaire en couleur.
  3. Procédé selon la revendication 1,
    caractérisé en ce
    qu'en particulier après un pré-séchage de la bande de papier, on applique en tant que couche primaire une enduction de colle et la bande de papier est guidée à travers une lisseuse (22) après l'application de l'enduction de colle.
  4. Procédé selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    la bande de papier (42) est guidée en une rame fermée à travers la section de pressage (14).
  5. Procédé selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    la bande de papier (42) est guidée dans la section de pressage (14) à travers seulement une presse à sabot ayant seulement un pinçage.
  6. Procédé selon l'une quelconque des revendications 1 à 4,
    caractérisé en ce que
    la bande de papier (42) est guidée dans la section de pressage (14) à travers plusieurs presses à sabot disposées les unes derrière les autres ayant à chaque fois un pinçage.
  7. Procédé selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    la bande de papier (42) est guidée à travers au moins une calandre (34, 68).
  8. Procédé selon la revendication 7,
    caractérisé en ce que
    la bande de papier (42) est guidée à travers au moins une calandre avec un pinçage souple, qui est formé entre deux cylindres de calandre, dont au moins un est pourvu d'un revêtement de plastique souple.
  9. Procédé selon la revendication 7 ou 8,
    caractérisé en ce que
    la bande de papier (42) est guidée à travers au moins une calandre ayant un pinçage dur, qui est formé entre deux cylindres de calandre, en particulier des cylindres en acier, qui possèdent à chaque fois une surface de cylindre dure.
  10. Procédé selon l'une quelconque des revendications 7 à 9,
    caractérisé en ce que
    la bande de papier (42) est guidée à travers au moins une calandre, en particulier une calandre à sabot ou une calandre à ruban métallique, avec un pinçage large prolongé dans la direction d'avance de la bande.
  11. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que la bande de papier est fabriquée avec une teneur en charge > 12 % pour un grammage < 90 g/m2, ou avec une teneur en charge > 14 % pour un grammage ≥ 90 g/m2, et/ou en ce que la bande de papier présente une couche de finition avec un poids de couche ≤ 10, notamment ≤ 9, et de préférence ≤ 8 g/(m2 · coté) pour un grammage < 90 g/m2, ou avec un poids de couche ≤ 16, en particulier ≤ 14 et de préférence ≤ 12 g/(m2 · coté) pour un grammage > 90 g/m2.
  12. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que la proportion fibreuse de la bande de papier est constituée de moins de 60 % de fibres de cellulose.
EP08760881A 2007-06-22 2008-06-12 Procédé de production d'une bande de papier couché principalement sans bois Revoked EP2160496B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007029328A DE102007029328A1 (de) 2007-06-22 2007-06-22 Verfahren und Vorrichtung zur Herstellung einer zumindest im Wesentlichen holzfreien gestrichenen Papierbahn
PCT/EP2008/057335 WO2009000656A2 (fr) 2007-06-22 2008-06-12 Procédé et dispositif de production d'une bande de papier couché au moins sensiblement exempte de bois

Publications (2)

Publication Number Publication Date
EP2160496A2 EP2160496A2 (fr) 2010-03-10
EP2160496B1 true EP2160496B1 (fr) 2011-08-31

Family

ID=40030860

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08760881A Revoked EP2160496B1 (fr) 2007-06-22 2008-06-12 Procédé de production d'une bande de papier couché principalement sans bois

Country Status (6)

Country Link
US (1) US20100119714A1 (fr)
EP (1) EP2160496B1 (fr)
CN (1) CN101680181A (fr)
AT (1) ATE522661T1 (fr)
DE (1) DE102007029328A1 (fr)
WO (1) WO2009000656A2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011076713A1 (de) 2011-05-30 2012-12-06 Voith Patent Gmbh Verfahren zur Herstellung einer holzfreien gestrichenen oder leichtgewichtig gestrichenen Papierbahn
US11220788B2 (en) * 2015-04-20 2022-01-11 Kotkamills Group Oyj Method and system for manufacturing a coated paperboard and a coated paperboard
CN114653549B (zh) * 2022-04-22 2025-12-30 广州钇鑫包装机械有限公司 一种辊印印刷品在线二次涂布机

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI114932B (fi) * 1997-12-18 2005-01-31 Metso Paper Inc Menetelmä ja laite paperirainan kuivatuksen optimoimiseksi
FI991096A7 (fi) * 1999-05-12 2000-11-13 Valmet Corp Menetelmä paperin, erityisesti hienopaperin, valmistamiseksi ja paperi konelinja erityisesti hienopaperin valmistamista varten
FI20011291L (fi) * 2001-06-18 2002-12-19 Metso Paper Inc Menetelmä ja paperikone päällystetyn paperin valmistamiseksi
DE102004003921A1 (de) 2004-01-27 2005-11-24 Voith Paper Patent Gmbh Verfahren und Anordnung zur Herstellung einer holzfrei gestrichenen, matten oder halbmatten Papierbahn

Also Published As

Publication number Publication date
ATE522661T1 (de) 2011-09-15
EP2160496A2 (fr) 2010-03-10
US20100119714A1 (en) 2010-05-13
DE102007029328A1 (de) 2008-12-24
WO2009000656A3 (fr) 2009-02-19
CN101680181A (zh) 2010-03-24
WO2009000656A2 (fr) 2008-12-31

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