EP1663593B1 - Hochdruckbeleimung im faser-mischer - Google Patents

Hochdruckbeleimung im faser-mischer Download PDF

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Publication number
EP1663593B1
EP1663593B1 EP03818847A EP03818847A EP1663593B1 EP 1663593 B1 EP1663593 B1 EP 1663593B1 EP 03818847 A EP03818847 A EP 03818847A EP 03818847 A EP03818847 A EP 03818847A EP 1663593 B1 EP1663593 B1 EP 1663593B1
Authority
EP
European Patent Office
Prior art keywords
glue
fibers
nozzles
high pressure
chips
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.)
Expired - Lifetime
Application number
EP03818847A
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German (de)
English (en)
French (fr)
Other versions
EP1663593A1 (de
Inventor
Josef Stutz
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.)
Kronospan Technical Co Ltd
Original Assignee
Kronospan Technical Co Ltd
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 Kronospan Technical Co Ltd filed Critical Kronospan Technical Co Ltd
Priority to SI200330942T priority Critical patent/SI1663593T1/sl
Publication of EP1663593A1 publication Critical patent/EP1663593A1/de
Application granted granted Critical
Publication of EP1663593B1 publication Critical patent/EP1663593B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B27N1/00—Pretreatment of moulding material
    • B27N1/02—Mixing the material with binding agent
    • B27N1/0227—Mixing the material with binding agent using rotating stirrers, e.g. the agent being fed through the shaft of the stirrer
    • B27N1/0254—Mixing the material with binding agent using rotating stirrers, e.g. the agent being fed through the shaft of the stirrer with means for spraying the agent on the material before it is introduced in the mixer

Definitions

  • the invention relates to a method of gluing fibers, which serve to produce a plate made of a wood material, as well as a device for carrying out the method.
  • FIG. 3 illustrates a method for producing a plate in the overall context.
  • deciduous or coniferous wood in the form of logs, branches and / or sawmill and Industrieresthölzer be used as a starting material deciduous or coniferous wood in the form of logs, branches and / or sawmill and Industrieresthölzer be used.
  • the wood is first crushed into chips with a size of about 20 x 5 mm in a crusher 31. These chips can also come directly from the forest or from sawmills. They can be screened to separate too small or too large particles. If the chips are the right size, they can be washed to remove adhering foreign matter, especially sand and earth. Cutting and other tools are spared and not damaged in the later manufacturing and processing process.
  • Sawdust is advantageously utilized, which is placed in a silo 32.
  • the wood components are fed to a funnel-shaped Vampfampf discloseder means of conveyor belts.
  • the feed is typically in the ratio of about 6: 4 (60 wt .-% shavings, 40 wt .-% sawdust).
  • sawdust is also recovered. Costs are lowered further. Resources of raw materials are spared. The proportion of shavings should predominate, as this produces fibers and later fiber mats, which stabilize mechanically. A lower limit for the sawdust content is therefore not to be observed.
  • Vordampf discloseder 33 the wood components are mixed, pre-evaporated while 60 to 70 ° C heated.
  • the wood components are then fed to a digester 34.
  • the wood components are about 2 to 3 minutes at a pressure of 1 1 cooked to 16 bar and a temperature of 140 to 180 ° C. Pressure and temperature are chosen so that a splitting into liquid and solid wood components takes place.
  • the liquid components are separated from the solid and fed to a line 35 which is gastight connect to the cooker 34.
  • the solid wood components are fed to a defibering machine 36 (refiner).
  • the fiberizing machine 36 typically includes a stator and a rotor driven by a motor.
  • the solid wood components are broken down here into fibers.
  • the fibers which in one embodiment are mixed with sawdust, are pneumatically fed to a drying tube 37.
  • the fibers are dried at 160 to 220 ° C.
  • the drying is relatively quick and inexpensive, since the liquid wood components have already been removed.
  • the fibers enter cyclones 38. Here the steam is separated. Down the fibers are led out.
  • the temperature of the fibers is then typically 50 ° C.
  • the fibers are then mechanically glued in gluing devices 39 at comparatively cool temperatures.
  • the subsequently glued fibers have a temperature of typically 35 to 40 ° C.
  • the glued fibers pass into one or more vision devices 40.
  • the vision devices 40 include heaters to heat the fibers to 55 to 60 ° C.
  • the increase in temperature is advantageous if the plates are to be pressed at temperatures of, for example, 80 ° C.
  • the pressing step can be accelerated, since the desired temperature does not have to be reached exclusively by means of the heated press. Shorter press times lead to greater production capacities or lower acquisition costs of the presses with circulating belts, since these can then be shorter. Also, the space required for such presses is lower. As a result, further costs are saved.
  • the pre-glued fibers are fed to one or more separation devices 41. From the separating devices 41 reach the pre-glued fibers to a scattering station 42.
  • the scattering station 42 are the pre-glued fibers on a conveyor belt.
  • the conveyor belt leads the fibers to a pre-press 44. Here, the fibers are pre-pressed and compacted.
  • the pre-press comprises circulating belts between which the fibers are fed and pressed.
  • the fibers then pass through a forming line 45 which has various means of ensuring that the fibers are in the desired shape.
  • the forming line leads to a vapor deposition device 46.
  • the fibers are vapor-deposited from above and / or below.
  • the fibers can be split parallel to the conveyor belt and steamed in the "inside".
  • the fibers finally reach the main press 47, which consists of two circulating steel strips pressed against each other.
  • the pressing takes place for example at 80 ° C.
  • the plates are sawed by means of a saw 48 and fed to a holding device 49. In the holding device, the plates are held so that they do not touch.
  • the plates are cooled in this way.
  • the separated liquid components which have been supplied to the line 35 are cooled within the gas-tight sealed system. If these liquid constituents have been sufficiently cooled, they are either disposed of or fed to the gluing device 39.
  • the plates are further processed, for example, to panels.
  • the plates are then coated with papers, for example, and the layer system fed to a press. In the press, the layer system is pressed at temperatures above 150 ° C, for example at temperatures between 180 ° C and 230 ° C.
  • the resins used then cure.
  • the plate is further sawn and provided with coupling elements by milling.
  • the panels can serve as a covering for walls or floors. If these are used as floor coverings, then the panels on the top of the decor are provided with an abrasion-resistant, transparent layer.
  • a method of assembling wood chips, particles and the like materials by means of a binder to form a disk-like compact or the like is described.
  • a method for producing the compact is also disclosed.
  • the wood chips or particles are compressed together with an epoxy resin.
  • the epoxy resin is sprayed under high pressure - preferably over 200 kp / cm 2 (196 bar) - on the mass of wood chips or particles.
  • a device for the continuous gluing of wood chips comes from the DE 41 15 047 C1 out. In this case, spray nozzles are provided by means of which the glue is atomized under pressure, so that it already reaches the chips over a large area.
  • the spray nozzles can be designed as pure glue pressure nozzles, alternatively as glue-air spray nozzles.
  • glue-air spray nozzles In the WO 03/013808 After the fibers have been dried, they are distributed over a wide area and a kind of curtain or mat is formed from the fibers. Subsequently, an air-glue mixture is sprayed into the curtain so as to ensure as uniform a distribution of the glue as possible. In any case, the formation of the curtain ensures that the glue is distributed more uniformly over the fibers than when the fibers are cotton-like.
  • the glue-air mixture is thereby regularly blown into the dried fibers at a temperature of 40 to 70 ° C, so that the glue reaches a dry outer skin and only minimally activated. This can ensure that the glue-fiber mixture does not stick to transport devices, such as inside the mixer.
  • a device and a method for producing a wood panel wherein the finished panel has a high peel resistance and a high quality.
  • the method of making the wood panel comprises the steps of spraying an adhesive component and a water component each of a first nozzle and a second nozzle, which are directed against each other to mix the adhesive component with the water component, wherein a fine-grained adhesive is obtained.
  • a gluing device for the application of glue to fibers together with subsequent production of fiberboard is from the document EP 0 744 259 A2 known.
  • a method for producing boards from a wood material is the document US 5,554,330 refer to.
  • the publication GB 791,554 discloses a method for mixing solid and liquid components. Continuous mixing of chip and fibrous materials with binders is the document DE-OS 1956 898 refer to.
  • the production of glue from wood components discloses the document WO 98/37147 , Vorbedampfungs vide are in the publications DE-OS 44 41 017 . US 11 17 95 and in Danish Patent Application No. 0302/97.
  • the object of the invention is to provide a method by which high-quality plates of the type mentioned can be produced inexpensively.
  • the object of the invention is also to provide a device for carrying out the method.
  • An apparatus for carrying out the method comprises the features of the independent claim.
  • Advantageous embodiments emerge from the subclaims.
  • glue is applied to the fibers at relatively low temperatures of preferably 20 to 40 ° C.
  • glue is not only sprayed, but before applying to the Fibers atomized or atomized. Instead of relatively large drops of glue in atomized form reaches the fibers.
  • the atomization succeeds in particular by conveying glue under very high pressure until it emerges via nozzles.
  • the glue then exits under high pressure from high pressure nozzles.
  • the outlet pressure is then preferably from 15 bar to 250 bar, particularly preferably from 40 to 90 bar.
  • the flow rate per nozzle at about 1.3 to 1.4 1 / min, on the one hand to achieve high flow rates and on the other hand to ensure a nebulization in the context of the invention.
  • the glue compressed air in addition to the glue compressed air is fed, so as to ensure at relatively large flow rates of 1.3 to 1.4 1 / min per nozzle, that even edge regions at the outlet cone from the nozzles are nebulized in the context of the invention.
  • the compressed air is supplied to the nozzles at a pressure of, for example, about 2 bar. At lower flow rates below 1.3 1 / min, however, it is usually not necessary to additionally supply compressed air in order to achieve the desired nebulization even at edge areas.
  • the water content in the glue can now be 45 to 65 wt .-%.
  • the glue content is preferably from 50 to 60% by weight. If the fibers provided with glue are pressed, the glue cures faster. It can thus further increase the production speed and thus further reduce the production costs.
  • the high glue pressure is generated by means of a high-pressure pump whose speed can be regulated.
  • a high-pressure pump whose speed can be regulated.
  • speed of the atomization of the glue can be advantageously set very accurately.
  • a very sensitive metering and optimization possibility is thus available during the application of glue.
  • the ratio of fibers to applied glue can thus be further optimized. Production costs can be further reduced by minimizing the proportion of glue, since the proportion of glue in particular contributes significantly to the production costs.
  • the solid wood components are fed before gluing a belt scale. Be on the belt scale the solid wood components on the one hand transported by means of a circulating conveyor belt, on the other side they are weighed. This gives the information as to what amount of glue is to be added to the solid wood components of the wood in the subsequent step.
  • the solid wood components are transferred to the following equipment by means of the belt scale. Possible weight fluctuations of the supplied solid wood components are detected during transport, registered and stored in one embodiment. These data are processed and can be used as a manipulated variable for the amount of glue that is subsequently applied to the solid wood components.
  • the transport speed at the belt scale is controlled so that a uniform amount of solid wood components of the subsequent gluing device (device in which the solid wood components are provided with glue) is supplied.
  • a change in speed of the feeder so a constant amount of material is supplied to the following facilities.
  • the weight detection of the solid wood components which may be in the form of fibers or chips, can be done in minute increments and allows a uniform feed of the solid wood components with an accuracy of, for example, ⁇ 1%.
  • the gluing is therefore carried out in a mixer in which glue and solid wood components are mixed together.
  • the solid wood components After drying the solid wood components, they are distributed over a surface of the invention and formed a kind of curtain or mat in one embodiment. This is especially the case when the solid wood components are present in the form of fibers, since a mat or a curtain can readily be formed therefrom. Glue is then atomized and fed into the curtain in fogged form.
  • the formation of a curtain ensures that the glue is evenly distributed over the solid wood components. This is especially the case when the solid wood components are in the form of fibers.
  • a curtain formed from solid wood components or formed mat is introduced into the mixer in one embodiment.
  • the curtain or the mat is then fed via high-pressure nozzles with the glue mist.
  • the curtain or the mat is preferably passed through the mixer without contact. Due to the contactless implementation, adhesion of the solid wood components to walls is advantageously avoided. Pollution problems and associated costs are reduced.
  • the glue is blown in atomized form, in particular at a temperature of 35 to 70 ° C, preferably at a temperature of up to 60 ° C in the dried solid wood components of the wood. This ensures that the glue reaches a dry outer skin. It is therefore activated minimally. This ensures that the subsequent mixture of solid wood constituents and glue does not stick to transport devices and devices, for example inside the mixer.
  • the glue mist is atomized together with heated compressed air and this mist the dried solid wood components, so for example added fibers or chips.
  • the warm air introduced into the mixer for example via a booth along with the glue and the dried solid wood components, activates glue a little on its surface.
  • adhesion of solid wood constituents to subsequent devices for example to mixer walls, is suitably counteracted.
  • reactive resins are used, so resins with constituents that can chemically build a network.
  • reactive resins are: solid or liquid phenolic resins, amino resins such as urea resins, melamine resins, acrylate resins, epoxy resins and / or polyester resins.
  • a calender press is used for the pressing of the fibers provided with glue, especially for the production of plates with a thickness of less than 10 mm.
  • the glueing according to the invention is particularly well suited, in particular, for the production of sheets of the indicated thickness.
  • a calender with a rotating press belt as for example in the DE 20303207 U1 discloses particularly high processing speeds.
  • the high processing speed is of particular advantage in order to process the unusually well-distributed glue very quickly and thus avoid unwanted premature activations of the glue.
  • FIG. 1 shows a section through a belt scale 1 and a subsequent mixer 2. As indicated by the arrow 3, dried fibers which have been produced from wood chips, fed via an opening of a housing 4 of the belt scale 1. A slope 5 directs the incoming fibers onto the belt of the belt scale.
  • the belt scale detects and controls the amount of material that is transported in the direction of the three rollers 6.
  • the three rollers 6 are arranged one above the other and offset so that they include an acute angle alpha with the belt weigher 1.
  • the fibers on the belt scale reach this acute angle. They pass through the rotating rollers 6.
  • a curtain is formed from the fibers, which is transported vertically downward along the arrow 7 due to gravity. The curtain thus enters the mixer 2, specifically between a plurality of nozzles 8 and tools 9.
  • the mixer consists of a tubular housing.
  • the housing is formed by a double wall 10 and 11.
  • Central to the interior of the housing is an axle 12, on which the tools 9 are mounted.
  • a tool 9 includes with the axis 12 a right angle.
  • Each four rudder blade-like tools 9 are summarized in a star shape.
  • Several of these combined tools are mounted at regular intervals on the axis 12.
  • the front area into which the fiber curtain is inserted is free of tools. This ensures that a sufficiently large distance between the tools 9 and the nozzles 8 is present. This distance is provided so that from the nozzles 8 leaking glue does not impinge directly on the tools during operation.
  • the diameter of the housing of the mixer corresponds to the width of the opening through which the fiber curtain is inserted into the mixer.
  • the width of the curtain is adapted to the width of the opening.
  • the high-pressure nozzles 8 are arranged in a semicircle around the axis 12 in an upper region and are both with Glue in the range of 40 to 90 bar and fed with compressed air.
  • the high pressure nozzles used are designed as a single-fluid nozzle or as a two-fluid nozzle when a nozzle both glue and compressed air to be supplied.
  • the glue pressure of 40 to 90 bar is moved during the exit from the nozzle like a spiral. By leaving the intended very narrow opening gap, the leaking glue "explodes" into a mist.
  • the nozzles are designed in such a way that glue is still atomised even at a pressure of 250 bar.
  • the glue pressure is provided by a pump whose power can be controlled, in particular by controlling the speed.
  • the curtain is evenly provided with fog-like glue and on the other hand, the emerging from the nozzles 8 atomized glue does not impinge directly on parts of the mixer.
  • a distance is arranged, so that a kind of annular gap is formed. Air is sucked in through this annular gap, which additionally ensures that a glue mist is created.
  • the glue-provided curtain (in other words, a wholly or predominantly fiber mat) is transported by the air flow parallel to the axis 12 through the mixer 2. The axis rotates during transport and thus the tools 9. The glue is further mixed with the fibers.
  • a cooled liquid is introduced in order to create a condensation layer in the interior of the mixer on its inner walls.
  • FIG. 2 shows a plan view of the mixer parallel to the axis 12. For clarity, only two tools 9 are shown. In particular, a single-row, semi-circular arrangement of the nozzles in the upper area is illustrated with reference to FIG.
  • the invention comprises one or more steps, which are disclosed by FIG. 3 in conjunction with the associated description.
  • the basic arrangement with high-pressure pump for the glue together with feeding to a nozzle is illustrated in more detail.
  • glue is fed to a pump 51.
  • the power of the pump can be regulated.
  • Glue from the pump 51 is further transported, then passes through a first shut-off valve 52 and finally reaches the shut-off valves 53 and 54. If the glue passes through the shut-off valve 53, then it flows through a flow meter 55. This serves the control and / or the Control the amount of glue being transported.
  • the glue may be passed over a parallel conduit 56 to allow for large flow rates.
  • the glue passes to a manifold 57, from which the glue in the direction of the high-pressure nozzles 58 and 59 is passed. From the high pressure nozzles 58 and 59, the glue exits in atomized form.
  • compressed air is supplied laterally to the nozzles.
  • the compressed air is fed to a conduit 60, passes shut-off valves 61, 62, 63, 64, which are used for individual control of the supplied compressed air, and finally exits adjacent to the high pressure nozzles 58 and 59.
  • the compressed air is blown in the direction of the leaking glue mist. The glue mist is so further swirled.
  • Another supply line 65 is used to supply warm water, with which the lines, valves and nozzles can be cleaned.
  • the high-pressure nozzles can be closed by means of compressed air in order to be able to shut off the nozzles when the system is at a standstill, thus preventing undesirable leakage of glue.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Disintegrating Or Milling (AREA)
EP03818847A 2003-09-12 2003-09-12 Hochdruckbeleimung im faser-mischer Expired - Lifetime EP1663593B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI200330942T SI1663593T1 (sl) 2003-09-12 2003-09-12 Visokotlacno lepljenje v mesalniku za vlakna

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2003/010142 WO2005035213A1 (de) 2003-09-12 2003-09-12 Hochdruckbeleimung im faser-mischer

Publications (2)

Publication Number Publication Date
EP1663593A1 EP1663593A1 (de) 2006-06-07
EP1663593B1 true EP1663593B1 (de) 2007-08-29

Family

ID=34429217

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03818847A Expired - Lifetime EP1663593B1 (de) 2003-09-12 2003-09-12 Hochdruckbeleimung im faser-mischer

Country Status (11)

Country Link
US (1) US20080271850A1 (es)
EP (1) EP1663593B1 (es)
CN (1) CN1845815A (es)
AT (1) ATE371528T1 (es)
AU (1) AU2003266383A1 (es)
CA (1) CA2537981A1 (es)
DE (1) DE50308089D1 (es)
ES (1) ES2295709T3 (es)
PT (1) PT1663593E (es)
SI (1) SI1663593T1 (es)
WO (1) WO2005035213A1 (es)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMO20040127A1 (it) 2004-05-25 2004-08-25 Imal Srl Procedimento di incollaggio di frammenti o trucioli di legno per osb e apparato di incollaggio relativo.
DE102006013567B4 (de) * 2006-03-24 2013-09-26 Glunz Ag Verfahren und Vorrichtung zum Aufbringen von Bindemittel auf Partikel, insbesondere Fasern, die durch einen Blasgang gefördert werden
ITMO20110103A1 (it) * 2011-05-06 2012-11-07 Imal Srl Dispositivo e metodo per l'iniezione di un fluido all'interno di un flusso di materiale incoerente.
DE102011103326B4 (de) * 2011-05-27 2014-08-07 Siempelkamp Maschinen- Und Anlagenbau Gmbh & Co. Kg Vorrichtung und Verfahren zum Beleimen von Fasern
CN104162921A (zh) * 2013-05-17 2014-11-26 北京泛欧瑞得科技有限公司 一种用于纤维板的喷浆管高压定量节胶工艺
US20150107749A1 (en) * 2013-10-18 2015-04-23 Unilin, Bvba Process and Device for Gluing Dried Fibers Designated for the Production of Fiberboards
CN108127763B (zh) * 2017-12-22 2020-05-08 中南林业科技大学 一种重组竹浸胶自动化成套设备
CN111844340B (zh) * 2020-08-05 2022-04-26 临沂市华源经贸有限公司 一种刨花板生产加工工艺

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Publication number Priority date Publication date Assignee Title
US2549563A (en) * 1948-04-17 1951-04-17 Sidney O Barnstead Manufacture of molded articles
US4263091A (en) * 1980-01-25 1981-04-21 Phillips Petroleum Company Fluid flow control
SE443945B (sv) * 1981-06-16 1986-03-17 Sten Lovgren Forfarande for tillverkning av en skiva, presskropp eller dylikt av en massa av trespan, -partiklar eller dylikt
DE3143895C2 (de) * 1981-11-05 1985-01-17 Triangel Spanplatten KG, 3177 Sassenburg Verfahren und Vorrichtung zum Beleimen von teilchenförmigem Gut in Form von Spänen, Fasern o.dgl.
DE3324106A1 (de) * 1983-07-05 1985-01-17 Draiswerke Gmbh, 6800 Mannheim Verfahren zum beleimen von holz-spaenen und dergl. mit fluessigleim und vorrichtung zur durchfuehrung des verfahrens
DE3336665A1 (de) * 1983-10-08 1985-04-25 Gebrüder Lödige, Maschinenbaugesellschaft mbH, 4790 Paderborn Verfahren zum befeuchten schuettfaehiger feststoffe und vorrichtung zum durchfuehren dieses verfahrens
DE4115047C1 (en) * 1991-05-08 1992-07-16 Draiswerke Gmbh, 6800 Mannheim, De Continuous glue applicator to wood chips - has cooled mixt. application tools, and glue make-up mechanism
US5290598A (en) * 1992-09-23 1994-03-01 Azko Coatings, Inc. Process for applying a high solids coating composition using a high pressure airless spray
DE29714302U1 (de) * 1997-04-24 1998-08-27 Walther Spritz- und Lackiersysteme GmbH, 42327 Wuppertal Vorrichtung zum Auftragen von 2-Komponenten-Materialien
EP1006316B1 (en) * 1998-11-30 2002-10-09 Hamworthy Combustion Engineering Limited Oil fuel burner systems
JP2001293704A (ja) * 2000-04-11 2001-10-23 Nippon Polyurethane Ind Co Ltd 木質ボード製造装置及び木質ボード製造方法
DE20112599U1 (de) * 2001-08-01 2002-12-19 Kronospan Technical Co. Ltd., Nikosia MDF-Platte nebst Herstellung
DE10224090A1 (de) * 2002-05-31 2003-12-11 Metso Paper Inc Verfahren und Vorrichtung zur Benetzung faseriger Rohstoffe mit Bindemittel

Also Published As

Publication number Publication date
CN1845815A (zh) 2006-10-11
PT1663593E (pt) 2007-10-10
EP1663593A1 (de) 2006-06-07
ATE371528T1 (de) 2007-09-15
US20080271850A1 (en) 2008-11-06
SI1663593T1 (sl) 2008-02-29
DE50308089D1 (de) 2007-10-11
ES2295709T3 (es) 2008-04-16
WO2005035213A1 (de) 2005-04-21
AU2003266383A1 (en) 2005-04-27
CA2537981A1 (en) 2005-04-21

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