EP1674224B1 - Process for production of wood fiber insulating panels - Google Patents

Process for production of wood fiber insulating panels Download PDF

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Publication number
EP1674224B1
EP1674224B1 EP05090341A EP05090341A EP1674224B1 EP 1674224 B1 EP1674224 B1 EP 1674224B1 EP 05090341 A EP05090341 A EP 05090341A EP 05090341 A EP05090341 A EP 05090341A EP 1674224 B1 EP1674224 B1 EP 1674224B1
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EP
European Patent Office
Prior art keywords
fiber
fibers
wood
mat
process according
Prior art date
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Application number
EP05090341A
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German (de)
English (en)
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EP1674224A1 (fr
Inventor
Cevin Marc Pohlmann
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.)
Kronotec AG
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Kronotec AG
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Priority to PL05090341T priority Critical patent/PL1674224T3/pl
Publication of EP1674224A1 publication Critical patent/EP1674224A1/fr
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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
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/002—Manufacture of substantially flat articles, e.g. boards, from particles or fibres characterised by the type of binder
    • 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
    • B27N3/04—Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
    • 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
    • B27N3/08—Moulding or pressing
    • B27N3/10—Moulding of mats
    • B27N3/14—Distributing or orienting the particles or fibres

Definitions

  • the invention relates to a method for producing a wood fiber insulation board or mat.
  • wood fiber insulation panels or mats are known.
  • wood fiber insulation boards or mats are produced using the wet process.
  • the plates or mats produced by these methods are relatively thin and the cost of manufacturing high, in particular, incur high costs for drying.
  • the resulting wood fiber insulation panels are characterized by a layered construction, as the fibers, when scattered on the screen belt, are aligned more or less in one direction, as is generally known from the manufacturing processes of MDF boards.
  • Such plates which are used for the insulation or for panel production, have a low transverse tensile strength.
  • the individual layers can be easily separated from each other with insulation boards.
  • blends of wood fiber material with binder fibers are known for the production of wood fiber insulation panels containing additives of granules consisting of a thermally resistant core with a thermally activatable coating. Such additives are added to save a certain amount of binder fibers. Improved properties of the produced wood fiber insulation panels according to these methods are not achieved.
  • the invention has for its object to provide a method for the production of wood fiber insulation boards or mats in the dry process, which makes it possible to produce single-layer wood fiber insulation panels or mats with wide thickness range with good transverse tensile strength and compressive rigidity and a large density range.
  • the fibers used are aligned in three dimensions. This orientation of the fibers is maintained until final solidification.
  • devices are preferably used, as are known for the production of textile fabrics by the nonwoven method.
  • the wood fibers are used with a moisture content of 7 to 16%, in particular 12 to 14%.
  • wood fibers which are obtained in a refiner made of wood pulped, they are previously mixed in a manner known per se with flame retardants and / or water repellents in amounts of 8 to 30%, in particular 10 to 20%, and adjusted to the desired Moisture content dried while removing dust and fibers with small lengths or diameters.
  • the addition of the flame retardant and / or water repellents and the drying of the wood fibers takes place separately from the production according to the invention of the wood fiber insulating panels or mats.
  • bale openers in which the fibers are well opened.
  • additional natural fibers such as hemp, flax, sisal, may be used in addition to the wood fibers in order to achieve certain desired properties in the wood fiber insulation boards according to the invention. Additional bale openers are then provided for these fibers.
  • the individual components are weighed out over separate weighing devices arranged according to the respective bale openers and entered into a blow pipe.
  • the components are weighed out over separate weighing devices arranged according to the respective bale openers and entered into a blow pipe.
  • the fine synthetic resin fibers adhere well to the excess wood fibers.
  • the wood fibers are used to bind fibers in mixing ratios of 95 to 80 to 5 to 20% and preferably from 90 to 10%. In these material mixtures up to 30% of the wood fibers can be replaced by other natural fibers.
  • the intensive mixing of the fibers is continued in the reservoir by the blown in transport air.
  • the wood fiber binder fiber mixture is weighed evenly over its width after weighing on a surface scale on a first conveyor belt.
  • the amount of supplied fiber mixture depends on the desired layer thickness and the desired density of the produced wood fiber insulation board or mat, the bulk densities are between 20 to 300 kg / m 3 .
  • the orientation of the fibers is three-dimensional.
  • plastic granulate such as those used in the recycling of plastic articles from the dual system, are very suitable for this purpose. It is also possible to use granules which consist of a thermally resistant core and a casing of synthetic resins which soften at the temperatures used in the heating zone.
  • the plastic granulate can be added in amounts of from 5 to 45% by weight, in particular in amounts of from 10 to 40% by weight and in particular in amounts of from 22 to 37% by weight, based on the particular fiber mixture used.
  • a powder spreader ensures a uniform distribution of the scattered plastic granules over the entire width of the fiber web moved on the first conveyor belt.
  • the pre-fleece runs at the end of the first conveyor belt in a Zerfaserungsvorraum, wherein again a mixing of the fibers used and the possibly scattered plastic granules.
  • the resulting fiber mixture is inflated to a second conveyor belt and provided for a three-dimensional orientation of the fibers.
  • the layer thickness of the obtained endless mat is adjusted.
  • the layer thickness of the mat can be between 3 to 400 mm.
  • On the endless mats thus obtained may optionally be placed on one or both sides of fabric or nonwovens made of organic, inorganic or natural fibers. Likewise, webs of cellulose or foils are conceivable.
  • the applied fabrics, nonwovens or webs can be structured and / or perforated. Likewise, a coloring is possible. Thus, the desired properties of the wood fiber insulation panels or mats can be improved.
  • the wood fiber insulation panels or mats thus obtained are now transferred from the second conveyor belt to an endless oven belt.
  • the oven belt guides the mat through the heating / cooling oven. It is softened by the temperatures prevailing in the furnace, the binder fiber and the resin granules and thus activated.
  • the temperatures in the heating zone are 130 to 200 ° C and in particular 160 to 185 ° C and are obtained for example by blown hot air. Both the binding fibers and the resin granules provide an intimate connection with the wood fibers and possibly laid fabric webs or films.
  • a calibration zone connects to the heating zone.
  • the calibration zone is formed by pairs of rollers in which the wood fiber insulation panels or mats in their Thickness evened and, if desired, compressed to the final thickness.
  • the obtained wood fiber insulation boards or mats are compressed to thicknesses of 3 to 350 mm, in particular 4 to 250 mm.
  • the resulting mats are fed with the oven belt a cooling zone in which the mat is cooled with ambient air.
  • the mat is fed to the final wood fiber insulation panels or mats.
  • the mat is trimmed at the edges and then split longitudinally and / or transversely.
  • the accumulated waste, in particular the edge strips, are comminuted and returned to the process. Since the desired mixing ratio is given, the material can be fed directly into the reservoir.
  • novel process wood fiber boards or mats which are characterized by the wide range of plate thickness of 3 to 350 mm, in particular 4 to 250 mm at densities of 20 to 300 kg / m 3 and in addition to an improved transverse tensile strength and a show increased pressure stiffness.
  • the wood fiber insulation boards or mats produced by the method according to the invention show a spatial orientation of the wood fibers as well as the binding fibers and have layer thicknesses of 3 to 350 mm at densities of 20 up to 300 kg / m 3 .
  • the Holzfaserdämmstoffplatten or mats are as acoustic insulation panels, as impact sound insulation mats for laminate or parquet floors, as puncture-resistant insulation board, as thermal insulation composite board, as mecanicsparrendämmung u.ä. used.
  • fabrics u.ä. from inorganic, organic or natural fibers, or films that can be structured, perforated, dyed the range of applications of wood fiber insulation panels or mats is still increased.
  • binder fibers For the production of wood fiber insulation mats as impact sound mats in laminate or parquet floors, 11% by weight of binder fibers with 89% by weight of wood fibers are mixed together and fed to the storage container. For this, the fiber mixture is inflated to a first conveyor belt to a uniform web, which has a bulk density of 150 to 280 kg / m 3 , in particular 150 to 180 kg / m 3 , has.
  • a plastic granulate as obtained during the recycling of synthetic resin products from the dual system, is applied in quantities by means of a powder spreader arranged over the entire width of the first conveyor belt, in the obtained nonwoven on the second conveyor belt a ratio of wood fibers to binder fibers to resin granules of 55: 7: 38% by weight is given.
  • the mat thickness on the second conveyor belt is 5 to 10 mm.
  • the obtained endless mat of the second conveyor belt is transferred to the oven belt, heated in the heating zone with hot air to 170 to 180 ° C and pulled through the calibration zone. Here a small compression takes place on the final mat thickness of 3 to 8 mm.
  • binder fiber with 75% by weight of wood fibers and 17% by weight of hemp fibers are mixed and fed to the storage container.
  • the fiber mixture is uniformly inflated to a first conveyor belt, so that a nonwoven fabric with a density of 130 to 220 kg / m 3 and in particular from 150 to 180 kg / m 3 is formed.
  • granules are added via the powder spreader which consist of a thermally resistant core and a casing of synthetic resins which soften at the temperatures prevailing in the heating zone. The amount of granules added is so high that one part by weight of granules is present on two parts by weight of the fiber mixture.
  • the fiber mixture is well mixed by tearing at the end of the first conveyor belt with the granules and inflated onto the second conveyor belt.
  • the rotational speed of the second conveyor belt is adjusted so that an endless mat with a thickness of 20 to 22 mm is formed.
  • On the mat is placed on one side of a profiled fabric fleece made of cellulose fibers over the entire width of the mat.
  • the product thus obtained is transferred to the oven belt and heated to 170 ° C. At this temperature, the product is driven through the sizing rolls and compacted to the final thickness of 8 to 15 mm.
  • the obtained Holzmaschinedämmstoffplatten are excellently suitable as Unterlegplatten in drywall.
  • 11 wt% binder fibers are mixed with 89 wt% wood fibers and fed to the reservoir.
  • the fiber mixture is inflated in quantities on a first conveyor belt, so that end products have a bulk density of 70 to 150 kg / m 3 and in particular from 100 to 140 kg / m 3 .
  • On the Vorvlies thus obtained are added via a powder spreader granules consisting of a heat-resistant core and a softening in the heating zone sheath and / or consist of resin granules which are obtained in the recycling of plastic articles from the dual system.
  • the amount of added granules is 28% by weight granules to 72% by weight of the fiber mixture.
  • the pre-fleece with the scattered granules is crushed and blended well mixed on the second conveyor belt inflated.
  • the speed of the second conveyor belt is set so that the resulting endless mat has a thickness of 65 to 180 mm.
  • the mat can be provided on one side with a dense, moisture-repellent film and on the other side with a fabric fleece.
  • the prepared from both sides coated mat is passed from the second conveyor belt on the oven belt, heated in the heating zone to 175 ° C and compressed in the calibration to a final thickness of 60 to 160 mm.
  • a good matrix is formed by the softening binder fibers and the granules, into which the wood fibers are embedded and which ensure sufficient bonding of the applied film or fabric fleece.
  • ETICS carrier plates For the production of ETICS carrier plates, 12% by weight of binder fibers are mixed with 88% by weight of wood fibers and fed to a storage container. The procedure is as described in Example 8, with the difference that a bulk density of 80 to 140 kg / m 3 and in particular from 95 to 105 kg / m 3 is achieved and the granules in amounts of 37% by weight to 63% by weight Fiber mixture was added. After intimate mixing of the fiber mixture with the granules at the end of the first conveyor belt, the mixture is inflated to a second conveyor belt. The speed of the second conveyor belt is adjusted so that an endless mat with a thickness of 75 to 280 mm is formed. After transfer to the oven belt is heated to 175 ° C and compacted by the sizing to a final thickness of 60 to 200 mm. The resulting plates show excellent compressive stiffness and very good transverse tensile strength.
  • binding fibers For the production of puncture-proof wood fiber insulation panels, 13% by weight of binding fibers are mixed with 78% by weight of wood fibers and 9% by weight of flax fibers and fed to a storage container. From the reservoir, the fiber mixture is inflated onto the first conveyor belt, in quantities that a plate with a density of 170 to 270 kg / m 3 and in particular from 230 to 250 kg / m 3 result. On the formed web on the first conveyor belt granules are scattered, which are obtained by recycling of plastic articles from the dual system, in quantities of 36% by weight granules to 64% by weight fiber mixture.
  • the fleece is torn open at the end of the first conveyor belt, the material is well mixed and then inflated to a second conveyor belt.
  • the rotational speed of the second conveyor belt is adjusted so that an endless mat with a thickness of 25 to 90 mm is obtained.
  • a structured fiber fleece preferably a random fiber fleece over the entire width of the endless mat is placed on one side.
  • the product thus obtained is transferred to the oven belt and heated in the heating zone to 175 to 185 ° C. In the calibration zone is compressed to a thickness of 15 to 60 mm and then cooled. The spatial arrangement of the fibers is maintained even after calibration.
  • the mats obtained show a high compressive stiffness combined with an increased transverse tensile strength.

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)
  • Laminated Bodies (AREA)

Claims (14)

  1. Procédé de production de panneaux ou de nattes de fibres isolantes, dans lequel des fibres de bois et des fibres lieuses provenant de brise-balles sont introduites régulièrement par le biais de dispositifs de pesage séparés, montés en aval des brise-balles, en des proportions de mélange souhaitées dans une conduite de soufflage et amenées par voie pneumatique via la conduite de soufflage à un réservoir de stockage, le mélange de fibres étant soufflé depuis le réservoir de stockage sur une première bande transporteuse avec alignement des fibres dans l'espace pour former un pré-matelas, caractérisé en ce qu'un granulat en résine synthétique thermo-activable est répandu uniformément sur toute la largeur du prématelas formé, en ce que le prématelas est effiloché à la fin de la première bande transporteuse et est soufflé, après une nouvelle étape de mélange, sur une seconde bande transporteuse avec alignement des fibres dans l'espace, l'épaisseur de la natte obtenue étant réglée au moyen de la vitesse de rotation de la seconde bande transporteuse, le produit ainsi obtenu étant transféré sur une bande de four et passant sur celle-ci à travers le four de chauffage/refroidissement, dans lequel se fait le ramollissement des fibres lieuses et du granulat en résine synthétique aboutissant à un collage intime des fibres de bois, l'épaisseur finale des panneaux ou nattes de fibres isolantes comprise entre 3 et 350 mm, de préférence entre 4 et 250 mm étant obtenue par calibrage et/ou compactage.
  2. Procédé selon la revendication 1, caractérisé en ce que les granulats de résine synthétique thermo-activable répartis se composent de granulats obtenus lors du recyclage de matières plastiques issu du système dual.
  3. Procédé selon la revendication 1, caractérisé en ce que les granulats synthétiques thermo-activables répandus se composent d'un noyau thermorésistant et d'une enveloppe en résine synthétique qui ramollit sous l'effet des températures régnant dans la zone de chauffage.
  4. Procédé selon au moins l'une des revendications 1 à 3, caractérisé en ce que les granulats de résine synthétique thermo-activable sont répartis sur le matelas de fibres en des quantités comprises entre 5 et 45% en poids, surtout en des quantités comprises entre 10 et 40% en poids et en particulier en des quantités comprises entre et 37% en poids par rapport au mélange de fibres.
  5. Procédé selon au moins l'une des revendications 1 à 4, caractérisé en ce que le rapport en poids des fibres lieuses aux fibres de bois va de 5/95 à 20/80, de préférence est compris entre 10 et 90% en poids.
  6. Procédé selon au moins l'une des revendications 1 à 5, caractérisé en ce que les fibres de bois sont remplacées jusqu'à 30% en poids par d'autres fibres naturelles telles que le lin, le chanvre, le sisal et sont amenées à la conduite de soufflage par le biais de brise-balles séparés dotés d'un dispositif de pesage en aval.
  7. Procédé selon au moins l'une des revendications 1 à 6, caractérisé en ce que l'épaisseur de la natte de fibres sans fin sur la seconde bande transporteuse est comprise entre 3 et 350 mm.
  8. Procédé selon au moins l'une des revendications 1 à 7, caractérisé en ce qu'un matelas de fibres, un tissu de fibres ou un film est posé d'un côté ou des deux côtés de la natte sur la seconde bande transporteuse.
  9. Procédé selon la revendication 8, caractérisé en ce que les matelas de fibres ou tissus de fibres posés d'un côté ou des deux côtés se composent de fibres organiques, minérales ou naturelles.
  10. Procédé selon la revendication 8, caractérisé en ce que les films posés se composent de cellulose ou de matières synthétiques.
  11. Procédé selon au moins l'une des revendications 8 à 10, caractérisé en ce que les matelas, tissus ou films sont structurés, perforés et/ou teintés.
  12. Procédé selon au moins l'une des revendications 1 à 11, caractérisé en ce que dans le four de chauffage/refroidissement, la zone de chauffage présente une température comprise entre 130 et 200°C et en particulier entre 160 et 185°C.
  13. Procédé selon au moins l'une des revendications 1 à 12, caractérisé en ce que le réchauffement de la natte dans la zone de chauffage est suivi directement du calibrage et/ou du compactage jusqu'à l'épaisseur finale, puis du refroidissement.
  14. Procédé selon au moins l'une des revendications 1 à 13, caractérisé en ce que les déchets produits lors de l'ébarbage et du découpage de la natte aux dimensions finales souhaitées des panneaux ou nattes de fibres isolantes sont broyés et amenés au réservoir de stockage.
EP05090341A 2004-12-21 2005-12-19 Process for production of wood fiber insulating panels Active EP1674224B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL05090341T PL1674224T3 (pl) 2004-12-21 2005-12-19 Sposób wytwarzania z włókien drzewnych izolacyjnej płyty, względnie maty

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102004062649A DE102004062649C5 (de) 2004-12-21 2004-12-21 Verfahren zur Herstellung einer Holzfaserdämmstoffplatte bzw.-matte und nach diesem Verfahren hergestellte Holzfaserdämmstoffplatten bzw.-matten

Publications (2)

Publication Number Publication Date
EP1674224A1 EP1674224A1 (fr) 2006-06-28
EP1674224B1 true EP1674224B1 (fr) 2011-03-23

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EP05090341A Active EP1674224B1 (fr) 2004-12-21 2005-12-19 Process for production of wood fiber insulating panels

Country Status (7)

Country Link
US (1) US8273201B2 (fr)
EP (1) EP1674224B1 (fr)
AT (1) ATE502746T1 (fr)
DE (2) DE102004062649C5 (fr)
ES (1) ES2361753T3 (fr)
PL (1) PL1674224T3 (fr)
PT (1) PT1674224E (fr)

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WO2015155105A1 (fr) 2014-04-11 2015-10-15 Bionic Alpha Ag Élément de construction léger, procédé de production dudit élément, utilisation dudit élément, et plaque légère et matériau isolant
EP3150345A1 (fr) 2015-09-29 2017-04-05 SWISS KRONO Tec AG Materiaux isolants en fibres de bois presentant une faible emission de composes organiques volatiles (cov) et son procede de fabrication
WO2017198473A1 (fr) 2016-05-19 2017-11-23 Bionic Alpha Ag Procédé de production d'éléments formant panneaux de bois, éléments formant panneaux de bois er leur utilisation
RU2684738C1 (ru) * 2015-11-18 2019-04-12 СВИСС КРОНО Тек АГ Плита осп (ориентированно-стружечная плита) на основе древесного материала с улучшенными характеристиками и способ ее изготовления
EP3725482A1 (fr) * 2012-08-09 2020-10-21 Ceraloc Innovation AB Dispersion monocouche de poudres de surface
US11072087B2 (en) 2014-11-06 2021-07-27 Flooring Technologies Ltd. Wooden material panel, in particular in the form of a wood-plastic composite material, and a method for producing the same
US11905717B2 (en) 2012-08-09 2024-02-20 Ceraloc Innovation Ab Single layer scattering of powder surfaces

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EP2338928B1 (fr) 2009-12-17 2011-11-02 Ems-Patent Ag Fibre de liaison destinée à la fixation de matériaux plats contenant des fibres naturelles
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EP2695982A1 (fr) * 2012-08-06 2014-02-12 Oskar Dilo Maschinenfabrik KG Dispositif et méthode pour égaliser ou obtenir un profil donné à un matelas de flocons de fibres
FR3032903B1 (fr) * 2015-02-23 2017-07-21 Neolife Procede de fabrication d’un materiau de type bois reconstitue
ES2644539T3 (es) 2015-09-17 2017-11-29 SWISS KRONO Tec AG Estera de fibras de madera para el uso como sustrato vegetal
DE102016121590A1 (de) 2016-11-10 2018-05-17 Gutex Holzfaserplattenwerk H. Henselmann Gmbh + Co. Kg Verfahren zur Herstellung von brandhemmenden Dämmplatten/-matten und brandhemmendem Einblasdämmstoff aus Fasern auf Basis nachwachsender Rohstoffe
CA3046271A1 (fr) * 2016-12-14 2018-06-21 Fpinnovations Tapis insonorisant, son procede de fabrication, systeme de commande de bruit le comprenant et son utilisation
DE102020132552A1 (de) 2020-12-08 2022-06-09 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung eingetragener Verein Verfahren zur Herstellung von Holzfaserdämmstoffprodukten und Holzfaserdämmstoffprodukt

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EP3725482A1 (fr) * 2012-08-09 2020-10-21 Ceraloc Innovation AB Dispersion monocouche de poudres de surface
US11905717B2 (en) 2012-08-09 2024-02-20 Ceraloc Innovation Ab Single layer scattering of powder surfaces
WO2015155105A1 (fr) 2014-04-11 2015-10-15 Bionic Alpha Ag Élément de construction léger, procédé de production dudit élément, utilisation dudit élément, et plaque légère et matériau isolant
US11072087B2 (en) 2014-11-06 2021-07-27 Flooring Technologies Ltd. Wooden material panel, in particular in the form of a wood-plastic composite material, and a method for producing the same
EP3150345A1 (fr) 2015-09-29 2017-04-05 SWISS KRONO Tec AG Materiaux isolants en fibres de bois presentant une faible emission de composes organiques volatiles (cov) et son procede de fabrication
RU2684738C1 (ru) * 2015-11-18 2019-04-12 СВИСС КРОНО Тек АГ Плита осп (ориентированно-стружечная плита) на основе древесного материала с улучшенными характеристиками и способ ее изготовления
WO2017198473A1 (fr) 2016-05-19 2017-11-23 Bionic Alpha Ag Procédé de production d'éléments formant panneaux de bois, éléments formant panneaux de bois er leur utilisation

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DE102004062649B4 (de) 2006-09-07
PT1674224E (pt) 2011-06-02
US8273201B2 (en) 2012-09-25
DE102004062649C5 (de) 2013-06-06
ATE502746T1 (de) 2011-04-15
DE102004062649A1 (de) 2006-07-13
US20060143869A1 (en) 2006-07-06
ES2361753T3 (es) 2011-06-21
PL1674224T3 (pl) 2011-08-31
EP1674224A1 (fr) 2006-06-28

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