WO2011036201A1 - Procédé de production de plaques de carton ou de bandes continues de carton à partir de vieux papiers - Google Patents

Procédé de production de plaques de carton ou de bandes continues de carton à partir de vieux papiers Download PDF

Info

Publication number
WO2011036201A1
WO2011036201A1 PCT/EP2010/064037 EP2010064037W WO2011036201A1 WO 2011036201 A1 WO2011036201 A1 WO 2011036201A1 EP 2010064037 W EP2010064037 W EP 2010064037W WO 2011036201 A1 WO2011036201 A1 WO 2011036201A1
Authority
WO
WIPO (PCT)
Prior art keywords
waste paper
fibers
cardboard
glued
fiberboard
Prior art date
Application number
PCT/EP2010/064037
Other languages
German (de)
English (en)
Inventor
Michael SCHÖLER
Original Assignee
Siempelkamp Maschinen- Und Anlagenbau Gmbh & Co. Kg
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 Siempelkamp Maschinen- Und Anlagenbau Gmbh & Co. Kg filed Critical Siempelkamp Maschinen- Und Anlagenbau Gmbh & Co. Kg
Priority to EP10755189A priority Critical patent/EP2480387A1/fr
Priority to CN201080042381XA priority patent/CN102712097A/zh
Publication of WO2011036201A1 publication Critical patent/WO2011036201A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/007—Manufacture of substantially flat articles, e.g. boards, from particles or fibres and at least partly composed of recycled material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N1/00—Pretreatment of moulding material

Definitions

  • the invention relates to a method for the production of cardboard plates or cardboard board strands or cardboard webs from waste paper.
  • the invention has for its object to provide a method which allows a cost-effective and economical production of cardboard plates or board slivers of waste paper.
  • the invention teaches a method for the production of cardboard or cardboard board strands from waste paper, waste paper is shredded to waste paper fibers, the waste paper fibers are glued with a binder, wherein from the glued recycled paper fibers, a fiber mat is produced and wherein the fiber mat in a continuous press is pressed using pressure and heat to a cardboard plate or a cardboard board strand.
  • the waste paper is crushed without the use of water to the waste paper fibers, z. B. in one or more mills. In this case, one or more hammer mills and / or Siebkorbmühlen can be used.
  • the invention is based on the recognition that cardboard plates or board strands can be produced economically, inexpensively and environmentally friendly from waste paper, if dispensed with the conventional treatment of waste paper with water. Instead, the waste paper fibers are glued with a binder, similar to what is known from wood-based panel production.
  • a binder can z.
  • B. the known from MDF manufacturing resins are used, for.
  • urea resins melamine resins, phenolic resins.
  • isocyanates can be used.
  • recourse is made to binders consisting of paper and paper
  • Cardboard production are generally known as sizing agents, for. B. resin glues and usually ready for use rosin size dispersions such.
  • alkyl ketene dimer dispersions AKD
  • ASA alkenyl succinic anhydride
  • polymer sesions of styrene acrylic acid or styrene maleic acid or polyurethane dispersions or starch dextrins, polyamines or acrylates.
  • fibers which are obtained by mechanical treatment of waste paper, in a simple and cost-effective manner environmentally friendly to cardboard boards or cardboard board strands press.
  • the weight per unit area of the cardboard plates or cardboard slabs is preferably 0.1 kg / m 2 to 3 kg / m 2 , z. B. 0.1 kg / m 2 to 1, 5 kg / m 2 .
  • the gluing of the fibers can take place during the pneumatic transport.
  • the fibers are pneumatically z. B. transported by a conveyor line and in the course of transport in the delivery line glue is added by spray nozzles.
  • glue is added by spray nozzles.
  • the fiber feed takes place pneumatically via a fiber feed line.
  • a fiber outlet tube opens in the upper area in a vertically arranged chute.
  • a plurality of spray nozzles for the gluing of emerging from the fiber outlet tube and entering the chute fibers are arranged. In this case, between the fiber outlet tube and the chute in a Beleimungszone the gluing device
  • the chute may be arranged downstream of a collecting device for collecting and discharging the glued fibers.
  • This collecting device may have an air-permeable conveyor belt for collecting and discharging the fibers and a suction device arranged below the conveyor belt for sucking air out of the chute through the conveyor belt.
  • This conveyor belt is designed as a sieve belt or filter belt. Consequently, the fibers emerging from the fiber outlet tube and subsequently glued pass over the chute onto the conveyor belt. On the conveyor belt, the glued fibers come to rest. Optionally sinking in the chute unused glue reaches the arranged on the conveyor belt fibers, so that a complete Leimaus makeup is guaranteed.
  • Such chute-gluing is for wood fibers z. B. from DE 10 2006 058 625 B3, DE 10 2006 058 626 B3 and DE 10 2006 058 627 B3.
  • the fibers may be glued in a continuous mixer having at least one mixing chamber and one or more mixing tools mounted on a rotating mixer shaft, the mixing tools mixing the fibers with the binder and conveying them through the mixing chamber in a conveying direction.
  • mixing devices are also referred to as gluing mixers.
  • the mixing chamber is generally cylindrical in shape as a drum, but this drum does not rotate, but is usually fixed.
  • the mixing chamber has at least one loading opening for the fibers and at least one discharge opening for the fiber-binder mixture and a plurality of binder feed openings for the supply of the binder.
  • the binder feed can take place via the mixing tools themselves, in which case a hollow shaft is usually used.
  • formed mixer shaft is provided.
  • the binder supply but also via in the interior of the mixing chamber projecting feed pipes.
  • the scattering head has a plurality of rows arranged one after the other in the conveying direction or in the running direction of the scattering belt conveyor, each having a plurality of transversely to the conveying direction or running direction of the scattering belt conveyor.
  • the stirring elements of one row can rotate in the same direction, while the stirring elements of respectively adjacent rows preferably rotate in the opposite direction
  • the distance between two adjacent stirring elements of a row can be approximately equal to the stirring width of the stirring elements speak and each two adjacent rows can be arranged offset by a predetermined amount transversely to the conveying direction or strip running direction to each other.
  • the preferably used scattering head is particularly well suited to the mechanical properties of the fiberboard, such. B. tensile strength or flexural rigidity to influence.
  • the fiber mat is scattered with the proviso that the mechanical properties of the fiberboard, such as tear strength and / or flexural rigidity in the longitudinal and transverse directions are substantially equal.
  • the fiber mats are pressed in a continuously operating press. It may be z. B. to act a double belt press, which has a heatable upper press plate and in the press base a heated lower press plate and in the press upper part and in the press base endlessly circulating steel press belts in the press upper part.
  • the steel press belts are supported with the interposition of WälzSystemaggregaten against the press plates.
  • hydraulic cylinder piston arrangements are provided which operate on the upper and / or lower press plate.
  • the fiber mat can be pressed with a pressure of 15 to 50 bar and a temperature of 120 ° C to 250 ° C. Basically you can
  • the board boards or board webs produced by the method according to the invention can be processed very well, in particular for packaging.
  • the material can be excellently punched, folded, folded, creased or shaped in other ways.
  • the production is cost-effective and therefore economical and environmentally sound because it can be used with very small amounts of water.
  • FIG. 2 shows a preferably usable scattering head for the method according to FIG. 1 in a side view and FIG. 3 shows the object according to FIG. 2 in a plan view (detail).
  • Fig. 1 the inventive method for the production of cardboard plates or cardboard board strands from waste paper is greatly simplified.
  • the waste paper a is comminuted (mechanically) in a first process step b, ie waste paper fibers are produced from the waste paper.
  • the processing of the waste paper to waste paper fibers takes place without the addition of water. If necessary, foreign objects, small parts or the like can be sorted out.
  • the "dry" recovered paper fibers produced in this way are in one
  • Gluing device glued (Verfahrensschntt c).
  • a conventional gluing during the pneumatic fiber transport, z. B. a chute gluing be provided.
  • the glued fibers are then usually fed to a fiber bunker.
  • a fiber mat can be sprinkled on a scatter belt conveyor with the aid of a spreading device or a spreading head.
  • the fiber mat made of glued fibers is optionally precompressed and then pressed in a continuously operating press to form a cardboard board or cardboard board strand (method step e).
  • a continuous board slab strand i.e., a board web
  • further processing takes place (step f).
  • the production of the fiber mat is carried out with a strainer, as it is known for example from WO 03/053642 A1. Reference is made to FIGS. 2 and 3.
  • FIG. 2 shows the fiber bunker 2 with a dosing unit 3.
  • the metering unit 3 consists of a metering belt 4 and a plurality of metering and / or opening rollers 5.
  • the waste paper fibers are fed via a bunker belt or distributor belt 6 to the bunker or the metering and / or opening rollers 5, which essentially Dissolve grit compactors.
  • a bunker filling is arranged schematically in FIG. 1 above the dosing belt.
  • the discharge quantity of the dosing belt bunker or the dosing unit can be varied essentially by lowering or increasing the speed of the dosing belt 4.
  • Bunker or metering unit can also be realized in another embodiment.
  • the spreading material from the bunker 2 or the dosing unit 3 is sprinkled on a scattering head 7 arranged above the scatter band conveyor 1.
  • a fiber mat M is produced from glued waste paper fibers on the scatter belt conveyor 1. This is shown in particular in Fig. 2.
  • a continuous press Following the scattering head 7 is a continuous press, not shown, or a pre-press.
  • the scattering head 7 is designed as a strainer 7 with a sieve bottom surface 8 and a plurality of arranged at a predetermined distance above the sieve bottom surface 8 stirring elements 9 with a predetermined stirring width B.
  • the stirring elements 9 are arranged in a housing 10, whose housing underside forms the sieve bottom surface 8 or on the underside of which the sieve bottom surface 8 is arranged.
  • the scattering head 7 has a plurality of rows 1 1 arranged one behind the other in the conveying direction F, each having a plurality of stirring elements 9 arranged transversely to the conveying direction F.
  • the individual stirring elements each have at least one stirring blade 13, which is rotatable about an axis 12 which is approximately perpendicular to the sieve bottom surface 8, with a predetermined stirring width B.
  • the stirring blades 13 are z. B. each one-piece and rod-shaped with rectangular or square cross-section. Other impeller configurations are possible.
  • the stirring vanes 13 rotate in a common plane which extends substantially parallel to the sieve bottom surface 8, directly above the sieve bottom surface 8.
  • the stirring vanes 13 are designed as double vanes with an overall blade length corresponding to the stirring width B.
  • each two adjacent rows 1 1, ie z. B. the first and second row, offset by a predetermined amount V transversely to the conveying direction F are arranged to each other.
  • This measure or the offset V of these rows corresponds approximately to half the stirring width, so that the first and third rows are again arranged in alignment with each other without offset.
  • the distance C of two adjacent rows 1 1 by a predetermined amount is smaller than the stirring width B. This is also indicated in Fig. 3.
  • At least one suction box 15 is arranged on the side opposite the sieve bottom surface 8, ie below the scatter belt conveyor 1, which generates a directed from the sieve bottom surface 8 on the scatter belt conveyor 1 air flow and thus the spreading material on the scatter belt conveyor or the wire belt. 1 sucks.
  • FIG. 2 a plurality of suction boxes 15 arranged below the scatter band conveyor 1 are provided. This is a plurality of in the strip running direction successively arranged suction boxes 15, each extending substantially transversely to the strip running direction.
  • One or more suction lines can be connected to the individual suction boxes 15, wherein the suction effect of the individual suction lines or suction boxes 15 z. B. is adjustable via throttle. It is possible, the suction of the suction boxes 15 and the entire
  • the scattering head 7 has at its end a discharge device 16 for residual fibers or coarse material and excess material extending transversely to the conveying direction F of the scattering belt conveyor 1.
  • This discharge device is merely indicated and formed in the embodiment as a discharge screw 16.
  • each two adjacent stirring elements 9 in a row 1 1 and in the edge regions of the scattering head separating or side walls 17 may be arranged, which extend from row to row over substantially the entire length of the scattering head 7 and substantially in Form conveying direction extending conveying channels 18.
  • the partitions 17 are adapted in shape to the shape and position of the stirring elements 9, so that form quasi-like or serpentine conveying channels 18 because of the staggered row arrangement in the plan view. Consequently, the spreading material in the individual conveying channels 18 is waved in the plan view, so that a particularly homogeneous spreading material distribution occurs, both in the conveying direction F and also transversely to the conveying direction F.
  • covering segments 20 are connected to the partitions 17 in the region of the stirring surface interspaces 19, which substantially cover or fill the stirring surface interspaces 19.
  • the described scattering head is particularly well suited to set the mechanical properties such as tensile strength or bending stiffness in the longitudinal and transverse direction of the plate targeted.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Paper (AREA)

Abstract

L'invention concerne un procédé de production de plaques de carton ou de bandes continues de carton à partir de vieux papiers, procédé selon lequel des vieux papiers sont broyés en fibres de vieux papiers, lesdites fibres de vieux papiers sont encollées avec un liant, un mat de fibres est produit à partir des fibres encollées et le mat de fibres est comprimé dans une presse en continu qui permet d'obtenir, sous l'effet de la pression et de la chaleur, une plaque de carton ou une bande continue de carton.
PCT/EP2010/064037 2009-09-23 2010-09-23 Procédé de production de plaques de carton ou de bandes continues de carton à partir de vieux papiers WO2011036201A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP10755189A EP2480387A1 (fr) 2009-09-23 2010-09-23 Procédé de production de plaques de carton ou de bandes continues de carton à partir de vieux papiers
CN201080042381XA CN102712097A (zh) 2009-09-23 2010-09-23 用于由废纸制造纸板或者说纸板条的方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200910042362 DE102009042362A1 (de) 2009-09-23 2009-09-23 Verfahren zur Herstellung von Kartonplatten bzw. Kartonplattensträngen aus Altpapier
DE102009042362.1 2009-09-23

Publications (1)

Publication Number Publication Date
WO2011036201A1 true WO2011036201A1 (fr) 2011-03-31

Family

ID=43216566

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/064037 WO2011036201A1 (fr) 2009-09-23 2010-09-23 Procédé de production de plaques de carton ou de bandes continues de carton à partir de vieux papiers

Country Status (4)

Country Link
EP (1) EP2480387A1 (fr)
CN (1) CN102712097A (fr)
DE (1) DE102009042362A1 (fr)
WO (1) WO2011036201A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106436430A (zh) * 2015-08-11 2017-02-22 玖龙纸业(天津)有限公司 一种高强牛卡纸制作方法

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011120630A1 (de) 2011-12-09 2013-06-13 Aerocycle Gmbh Verfahren zur Altpapieraufbereitung
DE102017103847A1 (de) 2017-02-24 2018-08-30 Voith Patent Gmbh Verfahren und Vorrichtung zur Herstellung einer Faserstoffbahn in einer Papiermaschine
DE102017103848A1 (de) 2017-02-24 2018-08-30 Voith Patent Gmbh Verfahren und Vorrichtung zur Herstellung einer Faserstoffbahn in einer Papiermaschine

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3736221A (en) * 1971-07-29 1973-05-29 K Evers Structural shape based on waste paper and method of providing the same
EP0262898A1 (fr) * 1986-09-26 1988-04-06 Howard City Paper Company Appareil et procédé pour préparer des panneaux comprimés à partir de papier revêtu de polymères
EP0409525A2 (fr) * 1989-07-21 1991-01-23 Fortifiber Corporation Appareil et procédé pour fabriquer des panneaux comprimés à partir de papier revêtu de polymères, en utilisant le mouvement relatif des bandes opposées
US5611882A (en) * 1993-08-11 1997-03-18 Phenix Biocomposites, Inc. Board stock and method of manufacture from recycled paper
WO2003053642A1 (fr) 2001-12-21 2003-07-03 Siempelkamp Maschinen- Und Anlagenbau Gmbh & Co. Kg Installation pour disperser un materiau, notamment des copeaux de bois, des fibres de bois ou similaires encolles, sur une bande transporteuse appropriee
DE102006058626B3 (de) 2006-12-13 2008-04-10 Siempelkamp Maschinen- Und Anlagenbau Gmbh & Co. Kg Anlage zum Beleimen von Fasern für die Herstellung von Faserplatten, insbesondere MDF-Platten oder dergleichen Holzwerkstoffplatten
DE102006058625B3 (de) 2006-12-13 2008-06-05 Siempelkamp Maschinen- Und Anlagenbau Gmbh & Co. Kg Anlage zum Beleimen von Fasern für die Herstellung von Faserplatten
DE102006058627B3 (de) 2006-12-13 2008-06-05 Siempelkamp Maschinen- Und Anlagenbau Gmbh & Co. Kg Anlage zum Beleimen von Fasern für die Herstellung von Faserplatten
WO2008109158A2 (fr) * 2007-03-07 2008-09-12 Sonoco Development, Inc. Procédés de conversion de matériau en papier usé en panneaux structurels, et panneaux structurels conçus de cette manière

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1471498A (en) * 1975-06-10 1977-04-27 Evers K Method of forming paper fibres into a desired shape
GB2399048A (en) * 2003-02-25 2004-09-08 Anthony Randall Davis Waste paper recycling

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3736221A (en) * 1971-07-29 1973-05-29 K Evers Structural shape based on waste paper and method of providing the same
EP0262898A1 (fr) * 1986-09-26 1988-04-06 Howard City Paper Company Appareil et procédé pour préparer des panneaux comprimés à partir de papier revêtu de polymères
EP0409525A2 (fr) * 1989-07-21 1991-01-23 Fortifiber Corporation Appareil et procédé pour fabriquer des panneaux comprimés à partir de papier revêtu de polymères, en utilisant le mouvement relatif des bandes opposées
US5611882A (en) * 1993-08-11 1997-03-18 Phenix Biocomposites, Inc. Board stock and method of manufacture from recycled paper
WO2003053642A1 (fr) 2001-12-21 2003-07-03 Siempelkamp Maschinen- Und Anlagenbau Gmbh & Co. Kg Installation pour disperser un materiau, notamment des copeaux de bois, des fibres de bois ou similaires encolles, sur une bande transporteuse appropriee
DE102006058626B3 (de) 2006-12-13 2008-04-10 Siempelkamp Maschinen- Und Anlagenbau Gmbh & Co. Kg Anlage zum Beleimen von Fasern für die Herstellung von Faserplatten, insbesondere MDF-Platten oder dergleichen Holzwerkstoffplatten
DE102006058625B3 (de) 2006-12-13 2008-06-05 Siempelkamp Maschinen- Und Anlagenbau Gmbh & Co. Kg Anlage zum Beleimen von Fasern für die Herstellung von Faserplatten
DE102006058627B3 (de) 2006-12-13 2008-06-05 Siempelkamp Maschinen- Und Anlagenbau Gmbh & Co. Kg Anlage zum Beleimen von Fasern für die Herstellung von Faserplatten
WO2008109158A2 (fr) * 2007-03-07 2008-09-12 Sonoco Development, Inc. Procédés de conversion de matériau en papier usé en panneaux structurels, et panneaux structurels conçus de cette manière

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2480387A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106436430A (zh) * 2015-08-11 2017-02-22 玖龙纸业(天津)有限公司 一种高强牛卡纸制作方法

Also Published As

Publication number Publication date
DE102009042362A1 (de) 2011-04-21
CN102712097A (zh) 2012-10-03
EP2480387A1 (fr) 2012-08-01

Similar Documents

Publication Publication Date Title
EP2714349B1 (fr) Dispositif et procédé d'encollage de fibres
DE102007049947A1 (de) Verfahren, Streukopf und Anlage zur Herstellung einer Streugutmatte aus orientiert gestreuten Spanschichten im Zuge der Herstellung von Holzwerkstoffplatten
DE102008059877A1 (de) Verfahren und Vorrichtung zur Beleimung von Spänen, Fasern oder faserähnlichem Material im Zuge der Herstellung von Werkstoffplatten
EP3280575B1 (fr) Panneau
EP2747966B1 (fr) Procédé et dispositif pour encoller des particules qui sont constituées de fibres et/ou de copeaux appropriés pour la fabrication de panneaux de matériau
EP2994278B1 (fr) Procédé et dispositif d'encollage de particules, de préférence lors de la fabrication de panneaux
DE102009042361B4 (de) Verfahren zur Herstellung von kartonähnlichen Faserplatten aus Holzfasern
DE69920155T2 (de) Klebevorrichtung für Holzfaserplattenherstellungsanlagen
EP2476526B1 (fr) Méthode et appareil pour la fabrication d'un aggloméré de fibres ou de copeaux
DE102008063914A1 (de) Verfahren und Anlage zur Herstellung von Werkstoffplatten aus Fasern oder faserähnlichen Materialien, ein Transportrohr oder einen Rohrtrockner für beleimte Fasern und eine Faserplatte
DE102004033777A1 (de) Verfahren, Vorrichtung und Streukopf zur Streuung oder Schüttung von Partikeln
WO2011036201A1 (fr) Procédé de production de plaques de carton ou de bandes continues de carton à partir de vieux papiers
EP2125312A1 (fr) Installation de dispersion
DE19805996A1 (de) Vorrichtung und Verfahren zur Herstellung eines Faserverbundes
EP3023210B1 (fr) Procédé destiné au traitement de produits d'épandage.
DE102015206469B3 (de) Streukopf, Verfahren und Paneel
EP3641996B1 (fr) Installation et procédé de production de particules végétales encollées
WO2005009702A1 (fr) Procede et dispositif pour produire des panneaux en materiau derive du bois
EP2347874B1 (fr) Procédé et dispositif de mélange d'un mélange de particules avec une colle
WO2003013809A1 (fr) Panneau realise dans un materiau derive du bois et de production ecologique
DE102004049473B4 (de) Verfahren und Vorrichtung zur Herstellung von Holzwerkstoffplatten, insbesondere Faserplatten
DE19632998B4 (de) Verfahren zur Herstellung von Komposit-Balken aus Holzstrands mit holznahen Quellwerten
DE102017103458B4 (de) Vorrichtung und Verfahren zum Benetzen eines Materialstroms mit einem Bindemittel und einem System zur Herstellung von Werkstoffplatten
EP1414629B8 (fr) Panneau realise dans un materiau derive du bois et de production ecologique
DE102015107321A1 (de) Vorrichtung und Verfahren zum Beleimen von Fasern oder faserähnlichem Material

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 201080042381.X

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 10755189

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 2010755189

Country of ref document: EP