[go: up one dir, main page]

EP1110687B1 - Procédé de production d'un panneau de fibres léger à surface fermée, et panneau ainsi obtenue - Google Patents

Procédé de production d'un panneau de fibres léger à surface fermée, et panneau ainsi obtenue Download PDF

Info

Publication number
EP1110687B1
EP1110687B1 EP00124199A EP00124199A EP1110687B1 EP 1110687 B1 EP1110687 B1 EP 1110687B1 EP 00124199 A EP00124199 A EP 00124199A EP 00124199 A EP00124199 A EP 00124199A EP 1110687 B1 EP1110687 B1 EP 1110687B1
Authority
EP
European Patent Office
Prior art keywords
binder
bulk density
fibre
fibres
fibers
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
EP00124199A
Other languages
German (de)
English (en)
Other versions
EP1110687B2 (fr
EP1110687A1 (fr
Inventor
Michael Dr. Müller
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.)
Glunz AG
Original Assignee
Glunz AG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7934563&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1110687(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Glunz AG filed Critical Glunz AG
Publication of EP1110687A1 publication Critical patent/EP1110687A1/fr
Publication of EP1110687B1 publication Critical patent/EP1110687B1/fr
Application granted granted Critical
Publication of EP1110687B2 publication Critical patent/EP1110687B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • B27N3/005—Manufacture of substantially flat articles, e.g. boards, from particles or fibres and foam
    • 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

Definitions

  • the invention relates to a process for the preparation a lightweight fiberboard according to the preamble of the claim 1 and on a lightweight fiberboard according to the preamble of patent claim 15.
  • the invention relates a lot to fiberboard low density, in particular as insulating material, but also as Design elements can be used, and on their Production.
  • a typical representative of known fiberboard the aforementioned field of application are so-called wood soft fiber boards.
  • a so-called dry process for the production of fiberboards from lignocellulosic fibers and binders is known.
  • the fibers are obtained in the same way as for the wet process. Subsequently, however, they are not transferred into a suspension, but dried in current dryers, ie in flight, to a level that later allows easier removal of the residual moisture.
  • the residual moisture content of the fibers after drying is less than 20%, typically less than 10%.
  • a binder is added to the fibers, which, after the subsequent shaping of the fibers into a fiber mat during hot pressing of the fiber mat between pressure-controlled heating surfaces to a fiberboard, glues the individual fibers together.
  • Dry-laid fibreboards are subdivided into high-density fibreboard (HDF), medium-density fibreboard (MDF), light and ultra-light fibreboard (ULF) within a density range of 900 to 450 kg per m 3 .
  • Characteristic of fiberboard according to the known dry process is that even with so-called ultra-light fibreboard (ULF) due to the still relatively high density no good insulation effects are achieved and when using the fiberboard as construction elements, the relatively high weight of the fiberboard is taken into account.
  • ULF ultra-light fibreboard
  • these known fiberboard on smooth closed surfaces that are directly coated even with thin materials.
  • the activation of the binder should be done for example by steam. To harden the fiber mat, this is to be flowed through with a drying medium, for example with hot air. If a thickness formation takes place in a press, the pressing surfaces should be designed like a sieve. In this way, as in a wet process fiberboard with open and structured by the screen surfaces used surface are produced, which thus also have all the disadvantages of known produced in the wet process fiberboard.
  • a process for the production of polyurethane-bonded fiberboard is known, which is classified as a special dry process.
  • the known method makes use of a binder having a first, NCO-containing binder component and a second, at least one polyol-containing binder component.
  • the at least two binder components are applied separately or at least without significant pre-reaction in the mixture on fibers, so that the polyurethane bond takes place as late as possible in the manufacturing process and thus substantially during a hot pressing as a heat treatment.
  • the second binder component comprising the polyol is applied to the fibers, while the first NCO-containing binder component is applied to the same fibers only thereafter and as late as possible before the fibers are formed into the fiber mat.
  • the binder components for the polyurethane bond or suppressing a pre-reaction of the binder components the entire reactivity of the binder for the bonding of the fibers during hot pressing of the fiber mat to the fiberboard should be maintained. Namely, it is known that the polyurethane reaction between the binder component containing the NCO groups and the binder component containing the polyol spontaneously starts when these two binder components come together unless it is chemically blocked.
  • the invention has for its object to provide a method for Production of light fiberboard according to the preamble of Claim 1 show that simple and economical is feasible and yet improved to fiberboard with Surface properties leads. Furthermore, a slight Fiberboard according to the preamble of claim 15 be shown, the improved surface properties having.
  • Advantageous embodiments of the method are in the Subclaims 2 to 15 and advantageous embodiments of Fiber board described in the subclaims 16 to 20.
  • the new process is a dry process because the fiber moisture content of the fibers is less than 20% when calibrating the fiber mat and during the heat treatment to cure the binder. It can be in the range below 10% as with conventional dry processes.
  • the heat treatment of the fiber mat via smooth closed heating surfaces, via which the heat is transferred to the curing of the binder on the fiber mat. It is important that the heating surfaces are distance-controlled and not pressure-controlled, as is the case when carrying out conventional drying processes.
  • the very low bulk density of the fiber boards produced by the new process does not allow controlled pressure control of the heating surfaces.
  • the fiber mat before heat treatment with To spray water or an aqueous solution.
  • To spray water or an aqueous solution In this way can be steamed by water evaporating on the heating surfaces be directed into the interior of the fiber mat, there the Curing of the binder promotes.
  • the water gives way to the Fibers on the surface of the fiber mat, so that through the Influence of smooth heating surfaces particularly good smooth surfaces can be achieved in the finished fiberboard.
  • the fiber mat through the spaced controlled heating surfaces also be calibrated.
  • the thickness of the is typically 20 up to 300 mm. It's just in the area of bigger thicknesses in This area amazing that the fiberboard still after can be produced by a dry process.
  • the Density profile of the fiberboard is adjusted so that an edge exaggeration of the density compared to the middle Density of the fiberboard of at least 60% results.
  • a Stronger marginal increase in density is the basis for the Forming a particularly strong closed surface of finished fiberboard, for example, a considerable Pressure stability compared to the average density of the Can have fiberboard.
  • a common synthetic resin of the wood-based material industry can be used as the binder.
  • the usual synthetic resins of the wood-based materials industry include urea-formaldehyde, melamine-urea-formaldehyde, melamine-urea-phenol-formaldehyde, phenol-urea-formaldehyde, phenol-formaldehyde and PMDI resins.
  • a foaming polyurethane binder may be used as the binder.
  • the advantage of filling the voids in the fiberboard between the individual fibers by the polyurethane foam is no longer noticeable in an economically utilizable way.
  • the particularly light fiberboard in the range below 150 kg / m 3 but can not be produced in usable quality without the use of a foam-forming binder.
  • foam-forming polyurethane binder may be a so-called One-component system are used, which for example was developed by the company Bayer and basically is available.
  • foam-forming Polyurethane binders a first, having NCO groups Binder component and a second at least one polyol comprising binder component.
  • the fibers before applying the Binder divided into at least two batches and on a first of these games only the first having the NCO groups Binder component and on a second of these parts only the second, the polyol-containing binder component to apply and the parts of the fibers only just before molding to mix the fiber mat together.
  • the two binder components so completely separated from each other. Also during mixing The parts of the fibers are not yet worth mentioning Contact of the two binder components. Only when molding the Fiber mat turns this contact at the contact points of the Fibers. But this contact is still not enough to alone trigger a significant amount of polyurethane reaction.
  • the first batch can basically be 10 up to 90% and the second batch corresponding to 90 to 10% of the contain entire fibers. But it makes sense if the first and second parts of the fibers are about the same size are, d. H. For example, each 40 to 60% of the total Contain fibers.
  • the new process can be both discontinuous as well be carried out continuously, which is preferred.
  • at continuous process control are the heating surfaces typically at rear heated metal endless belts intended.
  • the batches of fibers can Binder components and before mixing them separately be stored by each other.
  • the reactivity of the Binder components increases in separate storage of the Part of the fibers does not decrease even for longer periods of time.
  • the heat treatment can be made be that in the middle of the molding a temperature of only 50 to 100 ° C is reached. That means that compared to known methods very low temperatures in the middle of the Shaped body are sufficient. These result inversely in a high efficiency of the used in the heat treatment Energy and short periods of time for the heat treatment needed.
  • the low temperature is at the new Process at least then for the curing of the binder content in the middle of the molding sufficient if highly reactive polyurethane binders are used, whose Reaction is not chemically hindered to a pre-reaction suppress.
  • the fibers used in the new process be processed, wood fibers in the form of conventional Defibratormaschinestoff.
  • the binder content can be far in the new process Borders are selected by the necessary strength of the Fiberboard on the one hand and the economy of the Process face high binder costs on the other hand are set.
  • the following information refers to the Use of a polyurethane binder.
  • the average density of the shaped body is adjusted to 60 to 250 kg per m 3 , wherein the binder content of the molding is adjusted to a total of 2.5 to 5% by weight based on atro wood fibers.
  • the average density of the molding is adjusted to 250 to 400 kg / m 3 , wherein the binder content of the molding is adjusted to a total of 7 to 15% by weight based on atro wood fibers.
  • the new method can also be carried out so that the Forming the preform from the fibers using a layer construction different compositions and / or proportions of Binder is set in each layer. So for example, the binder levels in the topcoats a fiberboard be larger than in the middle layer, to a particularly high stability of the outer layers too to reach. But there are also other layer structures for Adaptation to specific requirement profiles with the new procedure realizable. It is understood that lots of Fibers used for different layers of the layer structure are provided, not with each other before forming the fiber mat but only those fibers that are mixed for each provided a layer of uniform composition are.
  • mechanically stable fiberboards result using a foam-forming binder, ie a polyurethane binder which has at least two binder components PMDI and polyol or which is a one-component system.
  • a foam-forming binder ie a polyurethane binder which has at least two binder components PMDI and polyol or which is a one-component system.
  • Such fiber boards may also be considered fiber stabilized polyurethane foam.
  • the binder content of atro fibers is at least 5%, so in absolute terms it is still relatively small.
  • binder content can be reduced when using a foam-forming polyurethane binder below 5% atro fibers. If the stabilities are not paramount, binder levels down to within 1% may be sufficient. All percentages are, as usual, weight percentages.
  • binder content should also be selected for lower strengths above 5%, and for higher strengths 7 to 15% binder content should be used.
  • a foam-forming binder can be used, in which case high-strength fiberboard can be produced even with relatively low binder levels.
  • the method illustrated in the flow chart of the figure for the production of polyurethane-bound molded body goes from wood 1, which is comminuted in the usual way and then in a defibrator 2 in individual wood fibers 3 is digested. The stream of wood fibers 3 is then in a Dividing device 4 divided into two parts 5 and 6, wherein the games 5 and 6 are the same size. On the wood fibers 3 of the Lot 5 becomes in an applicator 7 an NCO groups containing binder component 8, a so-called PMDI, applied.
  • the formulation of PMDI 8 corresponds to one such as those commonly used in the wood-based panel industry sole binder is used.
  • one at least one Polyol-containing binder component 10 applied on the wood fibers 3 of the Lot 6 is in an applicator 9 one at least one Polyol-containing binder component 10 applied.
  • it is preferably a mixture of short chain with a long-chain polyol.
  • a mixture one part of diethylene glycol and one part of polyether alcohol the molecular weight 1000 can be used.
  • Both application devices 7 and 9 work on the principle that the PMDI 8 and the polyol 10th is sprayed onto the wood fibers 3.
  • the Lots 5 and 6 if necessary in separate buffers 11 and 12 intermediately stored. These may be conventional wood fiber bunkers act.
  • An intermediate storage is basically optional and does not have to be mandatory.
  • a mixing device 13 the wood fibers 3 of the Batches 5 and 6 mixed together. With a suitable combination the streams of lots 5 and 6 may be the required mixing also by rolling a scattering head a scattering device 14 done. From the wood fibers 3 both Batches 5 and 6 becomes a fiber mat in the spreader 14 15, which is a preform of fiberboard produced here 18 represents. The fiber mat 15 is in a calibration device 16 calibrated, which is a cold pre-compression Prepress is. Subsequently, in a Hot press 17 a heat treatment from which the desired Fiberboard 18 results.
  • the hot press 17 is not so to understand that the fiber mat 15 under application compressed by pressure. Rather, the plates are the Hot press 17 distance-controlled, even without a constant back pressure the fiber mat 15 to fiber plates 18 with a defined thickness get.
  • the new process can be done with both a belt press as a hot press 17 as well as with a discontinuous working Hot press to be performed. It can be beneficial instead of or alternatively to hot contact surfaces also a Hot air heating or high frequency heating of the calibrated Fiber mat 15 provide. When warming over hot contact surfaces, it is advantageous to the surfaces of Sprinkle fiber mat 15 with water, so that on the hot Contact surfaces evaporating water heat also into the interior of the Fiber mat 15 transfers. This is especially beneficial if the fiber mat 15 is very thick, d. H. more than 40 mm thick.
  • the following examples have in common that the PMDI used, d. H. the NCO group-containing binder component, a Had composition, as used in the wood-based panel industry is common.
  • the second polyol component binder component was the already mentioned above mixture of one Part of diethylene glycol and one part of polyether alcohol of molecular weight 1000.
  • As a mixing device 13 came a simple rotary drum for use.
  • the mixing time of the two games 5 and 6 was 10 seconds.
  • the temperature of the contact surfaces of Hot press 17 was set at 170 ° C. All% information is in weight%.
  • the PMDI 8 was used in a proportion of 2.5% and the polyol 10 in a proportion of 1% based on atro wood fibers 3. After 240 sec. Dwell time of the fiber mat 15 in the hot press 17, a 100 mm thick fiber plate 18 was removed. The average bulk density of this fiberboard 18 was 80 kg / m 3 . Despite the very low compression of the wood fibers in this fiber board, the fiber board for an insulating material was perfectly stable and manageable.
  • the binder proportions corresponded to Example 1. After 300 sec. Dwell time of the fiber mat 15 in the hot press 17, a 50 mm thick fiber plate 18 was removed. The average bulk density was 170 kg / m 3 . The flexural strength of the fiberboard 18 was 0.3 N / mm 2 . The compressive stress at 10% compression was 0.18 N / m 2 .

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 (20)

  1. Procédé de fabrication de panneaux de fibres légers d'une masse volumique apparente médiane inférieure à 400 kg/m3 à base de fibres contenant de la lignocellulose et d'un liant, le liant étant appliqué sur les fibres et les fibres étant formées ensuite en un mat de fibres qui est calibré et soumis à un traitement thermique pour durcir le liant, caractérisé en ce qu'on règle une humidité des fibres (3) telle que lors du calibrage du mat de fibres (15) et du traitement thermique elle soit inférieure à 20 %, et en ce que le mat de fibres (15) est mis en contact, lors du traitement thermique pour le transfert de chaleur, sur les deux faces avec des surfaces chauffantes fermées lisses, les surfaces chauffantes opposées l'une à l'autre étant commandées avec un écartement pour respecter une distance prédéfinie, et un profil de la masse volumique apparente des panneaux de fibres (18) étant réglé de manière à obtenir une masse volumique apparente sur les bords supérieure d'au moins 20 % à la masse volumique apparente médiane des panneaux de fibres (18).
  2. Procédé selon la revendication 1, caractérisé en ce qu'on pulvérise de l'eau ou une solution aqueuse avant le traitement thermique sur le mat de fibres (15).
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que la distance prédéfinie des surfaces chauffantes est comprise entre 20 et 300 mm.
  4. Procédé selon l'une des revendications 1 à 3, caractérisé en ce que le profil de masse volumique apparente des panneaux de fibres (18) est réglé de manière à obtenir une masse volumique apparente supérieure d'au moins 60 % à la masse volumique apparente médiane des panneaux de fibres.
  5. Procédé selon l'une des revendications 1 à 4, caractérisé en ce que la masse volumique apparente médiane des panneaux de fibres (18) est réglée de 150 à 350 kg/m3, une résine synthétique usuelle de l'industrie des matériaux de bois étant utilisée comme liant (8, 10), dans le groupe qui comprend des résines UF, MUF, MUPF, PUF, PF et PMDI.
  6. Procédé selon l'une des revendications 1 à 4, caractérisé en ce que la masse volumique apparente médiane des panneaux de fibres (18) est réglée de 60 à 250 kg/m3, un liant PUR formant une mousse étant utilisé comme liant (8, 10).
  7. Procédé selon la revendication 6, caractérisé en ce que le liant PUR formant une mousse contient un premier composant de liant (8) comportant des groupes NCO ainsi qu'un deuxième composant de liant (9) comprenant au moins un polyol.
  8. Procédé selon la revendication 7, caractérisé en ce que les fibres sont divisées en au moins deux parties (5, 6) avant l'application du liant (8, 9), en ce que sur une première (5) de ces parties on n'applique que le premier composant de liant (8) comportant des groupes NCO, et sur une deuxième (6) de ces parties, que le deuxième composant de liant (9) comportant le polyol, et en ce que les parties (5, 6) des fibres (3) sont mélangées entre elles avant le formage du mat de fibres (15).
  9. Procédé selon la revendication 8, caractérisé en ce que la première partie (5) contient de 10 à 90 % et la deuxième partie (6) de 90 à 10 % des fibres (3) totales.
  10. Procédé selon la revendication 9, caractérisé en ce que la première partie (5) contient de 40 à 60 % et la deuxième partie (6) de 60 à 40 % des fibres (3) totales.
  11. Procédé selon l'une des revendications 8 à 10, caractérisé en ce que sur une troisième partie des fibres (3) on n'applique aucun composant du liant avant le mélange.
  12. Procédé selon l'une des revendications 1 à 11, caractérisé en ce que le procédé est mis en oeuvre de façon continue.
  13. Procédé selon l'une des revendications 1 à 12, caractérisé en ce que le traitement thermique est exécuté jusqu'à ce que soit atteinte une température de 50 à 100 °C au milieu du mat de fibres (15).
  14. Procédé selon l'une des revendications 1 à 13, caractérisé en ce que lors du formage du mat de fibres (15) à partir des fibres (3) , on règle une constitution en couches avec différentes compositions et/ou proportions du liant dans les différentes couches.
  15. Panneau de fibres léger présentant une masse volumique apparente médiane inférieure à 400 kg/m3 à base de fibres contenant de la lignocellulose et d'un liant, caractérisé en ce que le panneau de fibres (18) présente sur ses deux faces des surfaces fermées lisses et une masse volumique apparente sur les bords supérieure d'au moins 20 % à sa masse volumique apparente médiane.
  16. Panneau de fibres selon la revendication 15, caractérisé en ce que le panneau de fibres (18) présente une épaisseur comprise entre 20 et 300 mm.
  17. Panneau de fibres selon la revendication 15 ou 16, caractérisé en ce que la masse volumique apparente sur les bords est d'au moins 60 % supérieure à sa masse volumique apparente médiane.
  18. Panneau de fibres selon l'une des revendications 15 à 17, caractérisé en ce que la masse volumique apparente médiane du panneau de fibres (18) est comprise entre 150 et 350 kg/m3, le liant étant une résine synthétique usuelle de l'industrie des matériaux de bois du groupe qui comprend des résines UF, MUF, MUPF, PUF, PF et PMDI.
  19. Panneau de fibres selon l'une des revendications 15 à 17, caractérisé en ce que la masse volumique apparente médiane des panneaux de fibres (18) est comprise entre 60 et 250 kg/m3, le liant étant un liant PUR formant une mousse.
  20. Panneau de fibres selon l'une des revendications 15 à 19, caractérisé en ce que le panneau de fibres (18) présente une constitution en couches avec différentes compositions et/ou proportions du liant dans les différentes couches.
EP00124199A 1999-12-24 2000-11-08 Procédé de production d'un panneau de fibres léger à surface fermée Expired - Lifetime EP1110687B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19963096 1999-12-24
DE19963096A DE19963096C1 (de) 1999-12-24 1999-12-24 Verfahren zur Herstellung Polyurethan-gebundener Formkörper aus Lignocellulose-haltigen Partikeln

Publications (3)

Publication Number Publication Date
EP1110687A1 EP1110687A1 (fr) 2001-06-27
EP1110687B1 true EP1110687B1 (fr) 2005-12-21
EP1110687B2 EP1110687B2 (fr) 2010-02-03

Family

ID=7934563

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00124199A Expired - Lifetime EP1110687B2 (fr) 1999-12-24 2000-11-08 Procédé de production d'un panneau de fibres léger à surface fermée

Country Status (4)

Country Link
EP (1) EP1110687B2 (fr)
AT (1) ATE313421T1 (fr)
CY (1) CY1104997T1 (fr)
DE (2) DE19963096C1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010056491A1 (de) 2009-12-23 2011-07-21 Technische Universität Dresden, 01069 Formkörper aus Pflanzenmaterial und Verfahren zu dessen Herstellung
EP2786849A1 (fr) 2013-04-02 2014-10-08 HOMATHERM GmbH Procédé de fabrication d'un panneau de fibres multicouche, et panneau de fibres multicouche
US10076852B2 (en) 2016-07-21 2018-09-18 Gce deutschland gmbh Method for manufacturing a fibreboard

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10338007B4 (de) * 2003-08-19 2005-12-29 Glunz Ag Verfahren zur Herstellung eines Dämmformkörpers aus leichtem Holzfaserdämmstoff und Dämmformkörper aus leichtem Holzfaserdämmstoff
DE202006009318U1 (de) * 2006-05-08 2007-09-20 Dammers, Dirk Platte, insbesondere Paneel zur Verkleidung von Wänden bzw. Decken oder als Bodenbelag
DE102007019416A1 (de) * 2006-07-19 2008-01-24 Pfleiderer Holzwerkstoffe Gmbh & Co. Kg Grundwerkstoff, dessen Herstellungsverfahren sowie Verwendung
DE102007025801A1 (de) 2007-06-02 2008-12-04 Glunz Ag Verfahren zur Herstellung eines leichten flexiblen Formkörpers auf der Basis von Lignocellulose haltigen Fasern
PT2062709E (pt) 2007-11-23 2012-08-27 Glunz Ag Placas à base de fibras lenhosas coladas com um ligante
DE202014106187U1 (de) 2014-12-19 2016-02-22 Dieffenbacher GmbH Maschinen- und Anlagenbau Dämm- und/oder Schallschutzplatte
DE102014119242A1 (de) 2014-12-19 2016-06-23 Dieffenbacher GmbH Maschinen- und Anlagenbau Dämm- und/oder Schallschutzplatte, deren Verwendung und ein Verfahren zur Herstellung von Dämm- und/oder Schallschutzplatten
DE202017106335U1 (de) 2017-10-19 2017-11-17 Gce deutschland gmbh Wellenfaserplatte im Nass- und Halbtrocken-Verfahren

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1184509A (fr) * 1953-05-13 1959-07-22 Procédé de fabrication de plaques de bois artificielles formées à partir de pctits morceaux de bois et de liants et plaques fabriquées par ce procédé
FR1103226A (fr) * 1954-06-28 1955-10-31 Rougier & Fils Sa Panneaux en particules de bois agglomérés
DE2538999C3 (de) * 1975-09-02 1981-10-22 Lignotock Verfahrenstechnik Gmbh, 1000 Berlin Bindemittelkomponente für Polyurethan-Bindemittel
US4175148A (en) * 1976-11-05 1979-11-20 Masonite Corporation Product containing high density skins on a low density core and method of manufacturing same
SE504637C2 (sv) * 1995-07-27 1997-03-24 Sunds Defibrator Ind Ab Förfarande vid framställning av lignocellulosahaltiga skivor
DE19604575A1 (de) * 1996-02-08 1997-08-28 Glunz Ag Verfahren zur Herstellung von Span- oder Faserplatten
DE19647240B4 (de) 1996-11-15 2005-06-09 Fritz Homann Gmbh & Co. Kg Holzfaserplatte und Verfahren zu ihrer Herstellung

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010056491A1 (de) 2009-12-23 2011-07-21 Technische Universität Dresden, 01069 Formkörper aus Pflanzenmaterial und Verfahren zu dessen Herstellung
EP2786849A1 (fr) 2013-04-02 2014-10-08 HOMATHERM GmbH Procédé de fabrication d'un panneau de fibres multicouche, et panneau de fibres multicouche
US10076852B2 (en) 2016-07-21 2018-09-18 Gce deutschland gmbh Method for manufacturing a fibreboard
US10647021B2 (en) 2016-07-21 2020-05-12 Homann Holzwerkstoffe GmbH Fibreboard

Also Published As

Publication number Publication date
DE19963096C1 (de) 2001-05-03
DE50011903D1 (de) 2006-01-26
EP1110687B2 (fr) 2010-02-03
EP1110687A1 (fr) 2001-06-27
ATE313421T1 (de) 2006-01-15
CY1104997T1 (el) 2009-11-04

Similar Documents

Publication Publication Date Title
EP0344231B1 (fr) Procede de fabrication d'un corps en resine synthetique, eventuellement en forme de panneau, moule par compression et produit preliminaire utilise dans ce procede
DE69507772T2 (de) Verfahren zur Herstellung eines geformten Holzproduktes
EP1110687B1 (fr) Procédé de production d'un panneau de fibres léger à surface fermée, et panneau ainsi obtenue
EP3275611B1 (fr) Procédé de fabrication d'un panneau de fibres
EP1582646B2 (fr) Panneau isolant d'un mélange de bois et liant filamentaires et procédé de fabrication associé
EP0424909A2 (fr) Procédé pour la fabrication d'objets faÀ§onnés
DE10129750B4 (de) Werkstoff aus Holzpartikeln, Bindemittel und Zuschlagstoffen sowie Verfahren zu seiner Herstellung
EP0258703A2 (fr) Méthode de fabrication de panneaux de fibres de bois
DE102007019416A1 (de) Grundwerkstoff, dessen Herstellungsverfahren sowie Verwendung
AT392758B (de) Verfahren zum herstellen eines gegebenenfalls plattenfoermigen kunstharz-druckformkoerpers sowie vorprodukt zum einsatz bei einem solchen verfahren
EP2295659B1 (fr) Corps en matériau brut à base de typha et son procédé de fabrication
WO2010052322A1 (fr) Composition et procédé de fabrication d'un panneau de bois ou d'un panneau de fibres de bois
EP0839616B1 (fr) Procédé de préparation de panneaux de bois avec un liant organique
DE2929243A1 (de) Holzspanplatte sowie verfahren zu ihrer herstellung
WO2017098054A2 (fr) Procédé de fabrication d'un panneau en matériau composite à partir de constituants lignocellulosiques et de polyuréthane
DE10314974A1 (de) Verfahren zur Herstellung von Formkörpern mit einer zusammenhängende lignocellulosehaltige Fasern aufweisenden formgebenden Struktur und Formkörper
EP0880430A1 (fr) Panneau de fibres isolant
EP1048424A2 (fr) Panneau sandwich en liège et son procédé de production
DE19606262C1 (de) Verfahren und Vorrichtung zur Herstellung einer mitteldichten Faserplatte
DE19600478A1 (de) Verfahren zur Herstellung einer leichten mitteldichten Faserplatte
EP2786849B1 (fr) Procédé de fabrication d'un panneau de fibres multicouche, et panneau de fibres multicouche
EP1059152B1 (fr) Procédé de production d'un article à base de fibres de cellulose, en particulier en forme de panneau de fibres
DE19921019A1 (de) Korkverbundplatte und Verfahren zur Herstellung einer solchen Verbundplatte
EP4472817A1 (fr) Procédé de fabrication d'un panneau de fibres
WO2024230944A2 (fr) Procédé et dispositif (installation) pour fabriquer un panneau de matériau, panneau de matériau et utilisation d'un panneau de matériau

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20010620

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: GLUNZ AG

AKX Designation fees paid

Free format text: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20051221

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20051221

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20051221

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REF Corresponds to:

Ref document number: 50011903

Country of ref document: DE

Date of ref document: 20060126

Kind code of ref document: P

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060321

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060321

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060321

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060401

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20060316

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060522

ET Fr: translation filed
REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLAX Notice of opposition and request to file observation + time limit sent

Free format text: ORIGINAL CODE: EPIDOSNOBS2

26 Opposition filed

Opponent name: FRITZ EGGER GMBH & CO.

Effective date: 20060921

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20061130

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20061130

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20061130

NLR1 Nl: opposition has been filed with the epo

Opponent name: FRITZ EGGER GMBH & CO.

PLBB Reply of patent proprietor to notice(s) of opposition received

Free format text: ORIGINAL CODE: EPIDOSNOBS3

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PLBP Opposition withdrawn

Free format text: ORIGINAL CODE: 0009264

RTI2 Title (correction)

Free format text: PROCESS FOR PRODUCING A LIGHT WEIGHT FIBRE BOARD WITH A CLOSED SURFACE

PUAH Patent maintained in amended form

Free format text: ORIGINAL CODE: 0009272

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT MAINTAINED AS AMENDED

27A Patent maintained in amended form

Effective date: 20100203

AK Designated contracting states

Kind code of ref document: B2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20061110

NLR2 Nl: decision of opposition

Effective date: 20100203

REG Reference to a national code

Ref country code: NL

Ref legal event code: T3

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 16

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 17

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 20191121

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CY

Payment date: 20191104

Year of fee payment: 20

Ref country code: DE

Payment date: 20190816

Year of fee payment: 20

Ref country code: NL

Payment date: 20191121

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20191121

Year of fee payment: 20

Ref country code: IT

Payment date: 20191120

Year of fee payment: 20

Ref country code: FR

Payment date: 20191121

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20191119

Year of fee payment: 20

Ref country code: TR

Payment date: 20191101

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20191126

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 50011903

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: MK

Effective date: 20201107

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20201107

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK07

Ref document number: 313421

Country of ref document: AT

Kind code of ref document: T

Effective date: 20201108

REG Reference to a national code

Ref country code: BE

Ref legal event code: MK

Effective date: 20201108

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20201107