EP4581089A2 - Procédé de fabrication d'un panneau en matériau dérivé du bois pourvu d'un agent ignifuge - Google Patents

Procédé de fabrication d'un panneau en matériau dérivé du bois pourvu d'un agent ignifuge

Info

Publication number
EP4581089A2
EP4581089A2 EP23765450.4A EP23765450A EP4581089A2 EP 4581089 A2 EP4581089 A2 EP 4581089A2 EP 23765450 A EP23765450 A EP 23765450A EP 4581089 A2 EP4581089 A2 EP 4581089A2
Authority
EP
European Patent Office
Prior art keywords
compound
formula
weight
wood
flame retardant
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.)
Withdrawn
Application number
EP23765450.4A
Other languages
German (de)
English (en)
Inventor
Norbert Kalwa
Andreas Gier
Georg Seidack
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.)
Swiss Krono Tec AG
Original Assignee
Swiss Krono Tec 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
Application filed by Swiss Krono Tec AG filed Critical Swiss Krono Tec AG
Publication of EP4581089A2 publication Critical patent/EP4581089A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
    • C08L83/04—Polysiloxanes
    • C08L83/06—Polysiloxanes containing silicon bound to oxygen-containing groups
    • 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
    • B27N3/02—Manufacture of substantially flat articles, e.g. boards, from particles or fibres from particles
    • 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
    • B27N9/00—Arrangements for fireproofing
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/49—Phosphorus-containing compounds
    • C08K5/51—Phosphorus bound to oxygen
    • C08K5/52—Phosphorus bound to oxygen only
    • C08K5/521—Esters of phosphoric acids, e.g. of H3PO4
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
    • C09D183/04—Polysiloxanes
    • C09D183/06—Polysiloxanes containing silicon bound to oxygen-containing groups
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/18—Fireproof paints including high temperature resistant paints
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/61—Additives non-macromolecular inorganic
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
    • C08G77/04—Polysiloxanes
    • C08G77/14—Polysiloxanes containing silicon bound to oxygen-containing groups

Definitions

  • Inorganic salts are usually used in the production of flame-retardant wood materials. These are almost exclusively sulfates, phosphates and/or polyphosphates as ammonium salts. The reason for this is that these salts deliver particularly good results in terms of flame retardancy. These salts must be used in solutions with relatively high concentrations, otherwise problems will also be caused by the water contained in the salt suspensions used, so that the water must be removed from the process.
  • OSB takes place in a multi-stage process, whereby first the chips or strands of debarked round wood, preferably softwood, are peeled off in the longitudinal direction by rotating knives. In the subsequent drying process, the natural moisture of the beaches is reduced at high temperatures.
  • the moisture level of the strands can vary depending on the adhesive used, although the moisture content should be well below 10% in order to avoid splitting due to excessive vapor pressure in the panel during subsequent pressing. Depending on the adhesive, wetting may be more beneficial on damp beaches or on dry beaches.
  • the strands After the strands have dried, they are introduced into a gluing device, in which the glue or adhesive is applied to the chips in a finely distributed manner.
  • PMDI polymeric diphenylmethane diisocyanate
  • MUPF melamine-urea-phenol-formaldehyde
  • glues are mainly used for gluing.
  • the glues can also be used mixed in the OSB. These glues are used because OSB is often used for structural applications as mentioned above. Moisture- and moisture-resistant glues must be used there.
  • the strands in the middle layer can be of poorer quality because the flexural strength is essentially generated by the outer layers. Therefore, fine material that is created during machining can also be used in the middle layer of OSB boards.
  • the strands are continuously pressed under high pressure and high temperature of, for example, 200 to 250°C.
  • the OSB strands used in production have a surface that makes it difficult for the aqueous solution of the flame retardant to penetrate. This means that after the water has evaporated, the flame retardant is essentially present on the strands as a powder, not bound. As the strands rub against each other until they are scattered by the transport device, some of the flame retardant is rubbed off the strands.
  • the flame retardant is subsequently lost in the process or is found in areas of the OSB where it plays no role in flammability. This results in the dosage having to be increased, which incurs additional costs. This is noticeable, for example, in the fact that the FSM is only dosed in the top layer, but is later also found in the middle layer of the product. In addition, the increased amount of flame retardant must be taken into account with more glue, as the flame retardant interferes with gluing.
  • the flame retardant solutions usually contain approximately 50% by weight of flame retardant. Higher concentrations are only possible by heating the solutions, which is not technically possible in many systems. This means that there is also a limit to the dosage due to the amount of water that is introduced into the system, since too high amounts of water lead to too high a vapor pressure in the plate and thus to splitting. Of course, this also means that the highly concentrated flame retardant spreads more poorly on the beach than with a less concentrated solution.
  • a method for producing a wood-based panel from wood particles wherein at least one flame retardant in the form of a suspension, in particular aqueous suspension, is applied to the wood particles during the manufacturing process, the flame retardant suspension comprising the following components:
  • R 1 is an organic radical selected from the group comprising alkyl, cycloalkyl or phenyl, and
  • R 2 is an organic radical selected from the group comprising C1 -C10 alkyl, which can be interrupted by -O- or -NH-, and
  • R 2 has at least one functional group Qi, which is selected from a group containing a methacrylic, methacryloxy, vinyl and epoxy group,
  • a composition of at least one phosphate and a silane mixture is therefore provided for use in wood-based panels, the silanes used or the silane mixture acting as a fixing agent for the phosphate or sulfate on the wood particles used for the wood-based panels; i.e. the silanes are used as a fixing agent for the flame retardant on the wood particles.
  • the silane mixture of three different silanes is added to the flame retardant before it is dosed onto the wood particles. This can be done in the storage tank or before the flame retardant is applied to the wood particles.
  • the silanes react on the one hand with the flame retardant and on the other hand with the surface of the wood particles.
  • the silane compounds improve the adhesion of the phosphate to the wood surface of the wood particles due to their ability to react with the wood surface.
  • the silane compound of the formula (I) binds to the flame retardant via the organic residue.
  • the silane compound of the formula (II) is used to build a SiÜ2 network via condensation of the OH groups.
  • the alkyl groups, such as methyl, of the silane compound of the formula (I) cause a “loosening” of the three-dimensional SiÜ2 network, which forms through condensation. Network structures will become more flexible constructed that are not too brittle.
  • the silane compound of the formula (III) has at least one functional group, such as isocyanate or glycidyl groups, for chemical bonding to free OH groups of the cellulose on the wood particle surface.
  • the use of the present composition as a flame retardant offers several advantages. This makes it possible to dose the flame retardant more precisely and thus reduce the required amount of flame retardant, which means that the costs for the flame retardant can be reduced. Better use of materials is also made possible.
  • the (hydrolyzable) radical Methoxy and ethoxy are particularly preferred.
  • the organic radical R 1 of the compound of the general formula (I) is preferably selected from a group comprising C1 -C10 alkyl, preferably C1-C8 alkyl, particularly preferably methyl, ethyl, propyl, pentyl, hexyl, heptyl, octyl.
  • cycloalkyl includes the groups cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl and cycloheptyl.
  • the compound of the general formula (I) can in particular comprise one of the following formulas: R 1 SiX 3 or R 1 2 SiX 2 with R 1 as a C1 -C10 alkyl group, preferably methyl, ethyl, propyl, pentyl, hexyl, heptyl, Octyl, and with X as alkoxy, especially methoxy, ethoxy, n-propoxy or i-propoxy.
  • compounds of the general formula (I) according to R 1 a SiX( 4 -a), in particular R 1 SiX 3 can be selected from methyltriethoxysilane, phenyltriethoxysilane, dimethyldiethoxysilane, octyltriethoxysilane.
  • the compound of the general formula (II) SiX 4 comprises methoxy, ethoxy, n-propoxy or i-propoxy and butoxy, as X.
  • the compounds tetramethoxysilane and tetraethoxysilane are particularly preferred as a compound of the general formula ( II).
  • the organic R 2 of the compound of the general formula (III) is preferably selected from a group comprising methyl, ethyl, propyl, pentyl, hexyl, heptyl, octyl, which can be interrupted by -O- or -NH-.
  • the at least one functional group Q 1 of the compound of general formula (III) is selected from a group containing epoxy, methacryloxy, amino, and vinyl.
  • Particularly preferred functional group Q 1 is glycidyloxy.
  • the functional group Q 1 advantageously has a residue with a double bond or an epoxy group that can be activated and polymerized by means of UV radiation.
  • the functional groups through which crosslinking with the wood surface of the wood particles is possible include, in particular, polymerizable and/or polycondensable groups, whereby the polymerization reaction also includes polyaddition reactions.
  • the functional groups are preferably selected so that an organic crosslinking between the phosphate/sulfate as a flame retardant and the wood surface can be carried out via optionally catalyzed polymerization and/or condensation reactions.
  • the compound of general formula (III) comprises methoxy, ethoxy, n-propoxy or i-propoxy and butoxy, as X, preferably methoxy and ethoxy.
  • the compounds glycidyoxypropyltriethoxysilane and glycidyoxypropyltrimethoxysilane are particularly preferred as compounds of the general formula (III).
  • a first compound of the formula (I) corresponds to R 1 a SiX ( 4.a )
  • silanes that do not fall under one of the formulas (l)-(III) are not part of the composition according to the invention and are therefore excluded.
  • the silane mixture comprises 5-25% by weight, preferably 10-20% by weight, of at least one silane of the formula (I), 3-15% by weight, preferably 6-11% by weight of at least one silane of the formula (II) and 5-20% by weight, preferably 8-15% by weight of at least one silane of the formula (III).
  • the silane mixture comprises 5-15% by weight, preferably 8-12% by weight of at least one silane of the formula (I), 3-10% by weight, preferably 4-7% by weight of at least one silane of the formula (II) and 10-20% by weight, preferably 13-17% by weight, of at least one silane of formula (III).
  • the silane mixture comprises 15-25% by weight, preferably 18-22% by weight of at least one silane of the formula (I), 5-15% by weight, preferably 10-13% by weight of at least one silane of the formula (II ) and 5-10% by weight, preferably 7-9% by weight, of at least one silane of the formula (III).
  • the at least one phosphate is a monophosphate or polyphosphate and is used as an ammonium salt or organic salt.
  • Halogen-free phosphates such as ammonium polyphosphate, are preferred.
  • a mixture of phosphates and sulfates is preferred.
  • the present composition contains at least one metal alkoxide, in particular a zirconium alkoxide, such as zirconium n-propoxide.
  • the amount of metal alkoxide is preferably 1-3% by weight, in particular 1-2% by weight.
  • the alkoxides used serve as a condensation catalyst in order to have the highest possible degree of condensation even at low temperatures.
  • At least one glycol ether is contained in the present composition.
  • the glycol ether is added to the composition as a mixture of water and at least one glycol ether, in particular in a mixing ratio of 60 parts of water and 40 parts of glycol ether.
  • the glycol ethers used are dipropylene glycol monomethyl ether, tripropylene glycol monomethyl ether, 1-methoxy-2-propanol, tripropylene glycol monobutyl ether, propylene glycol butyl ether, ethylene glycol monophenyl ether, preferably dipropylene glycol monomethyl ether.
  • Glycol ethers serve as a non-flammable solvent that goes well with both the water of the flame retardant and the alcohol of the silane.
  • the alcohol step produced in the production of the flame retardant can be omitted, as shown below.
  • the present composition comprises
  • At least one phosphate and/or sulfate At least one phosphate and/or sulfate
  • At least one metal alkoxide preferably zirconium alkoxide
  • the present composition comprises
  • At least one phosphate and/or sulfate At least one phosphate and/or sulfate
  • At least one metal alkoxide preferably zirconium alkoxide, optionally at least one glycol ether, and
  • the present composition can contain inorganic particles, in particular nanoparticles based on SiO 2 , such as silica gels or zeolites.
  • the particles preferably used have a size between 2 and 400 nm, preferably between 2 and 100 nm, particularly preferably between 2 and 50 nm.
  • Basic compounds such as alkalis such as NaOH, KOH, or ammonium hydroxide solutions are suitable as catalysts.
  • a sodium hydroxide solution in particular a 0.1 molar sodium hydroxide solution, is preferably used.
  • step f 20-40% by weight, preferably 25-35% by weight, particularly preferably 30% by weight, of the mixture obtained in step e1) or step e2) are added to an aqueous phosphate solution, in particular a phosphate solution with a solids content of 50% by weight %, given.
  • the amount of silane mixture in the final composition is preferably 2-10% by weight, preferably 3-8% by weight, particularly preferably 4-6% by weight, for example 5% by weight.
  • aqueous suspension of the flame retardant produced from three silanes and phosphate and/or sulfate is stable and is applied to the wood particles in the form of a spray.
  • the flame retardant is applied during the production of a wood-based panel. Accordingly, a method for producing a wood-based panel is also provided, which includes the following steps:
  • the amount of flame retardant composition sprayed onto the wood particles is between 15 and 30% by weight, preferably between 20 and 25% by weight (solid on dry wood).
  • a phenol-formaldehyde resin adhesive PF
  • a cresol/resorcinol-formaldehyde resin adhesive UF
  • urea-formaldehyde resin adhesive UF
  • melamine-formaldehyde resin adhesive MF
  • polyurethane adhesives based on aromatic polyisocyanates in particular polydiphenylmethane diisocyanate (PMDI), tolylene diisocyanate (TDI) and/or diphenylmethane diisocyanate (MDI), with PMDI being particularly preferred, are available to a lesser extent.
  • PMDI polydiphenylmethane diisocyanate
  • TDI tolylene diisocyanate
  • MDI diphenylmethane diisocyanate
  • paraffins e.g. 3% by weight of a 50% by weight paraffin emulsion
  • the paraffin emulsion is preferably sprayed onto the wood particles.
  • the wood-based panels produced can be a coarse particle board (OSB) board, a chipboard or a plywood board.
  • OSB coarse particle board
  • coarse particle boards also called OSB (oriented strand boards)
  • OSB oriented strand boards
  • strands of debarked round wood preferably softwood, are peeled off lengthways using rotating knives.
  • OSB typically consists of two top layers that define a middle layer, where the top layers and middle layer can consist of different types of wood strands. Flat strands can be used in the top layers, while poorer quality strands (or chips) can be used in the middle layer. It is preferred if the strands for the cover layers are mixed with the present flame retardant, for example sprayed.
  • Isocyanates are preferably used as binders for OSB.
  • the at least one isocyanate is based on aromatic polyisocyanates, in particular polydiphenylmethane diisocyanate (PMDI), tolylene diisocyanate (TDI) and/or diphenylmethane diisocyanate (MDI), with PMDI being particularly preferred.
  • PMDI polydiphenylmethane diisocyanate
  • TDI tolylene diisocyanate
  • MDI diphenylmethane diisocyanate
  • the at least one flame retardant can be applied, in particular sprayed, to the wood strands in a glue drum (coil) or a trough mixer together with the addition of the binder.
  • the glued wooden strands are placed or scattered on a conveyor belt and then pressed into an OSB wood-based panel.
  • the pressing can take place at a pressing temperature between 150 and 250 ° C, preferably 180 ° C and 220 ° C, and a pressing time between 30 and 240 seconds, preferably 100 and 210 seconds, in particular 150 and 180 seconds.
  • the OSB produced using the present process thus have a binder and the flame retardant composition described above.
  • ino®dur GW80-N-D5 5% by weight is added to a flame retardant based on phosphate/polyphosphate (solids content: approx. 50% by weight).
  • this mixture is sprayed in a mixer onto the top layer chips for a chipboard in an amount of 20% by weight (solid on dry wood).
  • 15% by weight of solid urea-formaldehyde glue (as a 60% solution) and 2% by weight of hot paraffin were also dosed.
  • the glue contained a hardener based on an ammonium salt in an amount of 5% by weight fl./fl. (50% solution).

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing & Machinery (AREA)
  • Forests & Forestry (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)

Abstract

La présente invention concerne un procédé de fabrication d'un panneau en matériau dérivé du bois pourvu d'un agent ignifuge, procédé selon lequel au moins un agent ignifuge est appliqué sous la forme d'une suspension sur les particules de bois pendant le processus de fabrication, la suspension d'agent ignifuge comprenant : au moins un sel de phosphate et/ou un sulfate, un mélange d'au moins un composé représenté par la formule générale (I) R1 aSiX(4-a), dans laquelle X désigne alcoxy, et R1 est un radical organique choisi dans le groupe comprenant alkyle, cycloalkyle et phényle, et a = 1, 2, 3, notamment 1 ou 2, au moins un composé représenté par la formule générale (II) SiX4, dans laquelle X désigne alcoxy, et au moins un composé représenté par formule générale (III) R2SiX3, dans laquelle X désigne alcoxy, et R2 est un radical organique choisi dans le groupe comprenant alkyle en C1-C10, qui peut être interrompu par -O- ou -NH-, et R2 présente au moins un groupe fonctionnel Q1 choisi dans un groupe contenant un groupe méthacryle, méthacryloxy, vinyle et époxy.
EP23765450.4A 2022-08-31 2023-08-24 Procédé de fabrication d'un panneau en matériau dérivé du bois pourvu d'un agent ignifuge Withdrawn EP4581089A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP22193242.9A EP4332170B1 (fr) 2022-08-31 2022-08-31 Procédé de fabrication d'une plaque en matériau dérivé du bois pourvue d'un agent ignifuge
PCT/EP2023/073300 WO2024046878A2 (fr) 2022-08-31 2023-08-24 Procédé de fabrication d'un panneau en matériau dérivé du bois pourvu d'un agent ignifuge

Publications (1)

Publication Number Publication Date
EP4581089A2 true EP4581089A2 (fr) 2025-07-09

Family

ID=83692712

Family Applications (2)

Application Number Title Priority Date Filing Date
EP22193242.9A Active EP4332170B1 (fr) 2022-08-31 2022-08-31 Procédé de fabrication d'une plaque en matériau dérivé du bois pourvue d'un agent ignifuge
EP23765450.4A Withdrawn EP4581089A2 (fr) 2022-08-31 2023-08-24 Procédé de fabrication d'un panneau en matériau dérivé du bois pourvu d'un agent ignifuge

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP22193242.9A Active EP4332170B1 (fr) 2022-08-31 2022-08-31 Procédé de fabrication d'une plaque en matériau dérivé du bois pourvue d'un agent ignifuge

Country Status (6)

Country Link
EP (2) EP4332170B1 (fr)
CN (1) CN119836342A (fr)
ES (1) ES2997987T3 (fr)
HU (1) HUE069789T2 (fr)
PL (1) PL4332170T3 (fr)
WO (1) WO2024046878A2 (fr)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006006655A1 (de) * 2005-08-26 2007-03-01 Degussa Ag Cellulose- bzw. lignocellulosehaltige Verbundwerkstoffe auf der Basis eines auf Silan basierenden Komposits als Bindemittel
DE102008046637B4 (de) 2008-09-09 2014-09-25 Kronotec Ag Beleimungsvorrichtung für Holzspäne zur Herstellung von Holzspanplatten

Also Published As

Publication number Publication date
EP4332170A8 (fr) 2024-04-10
CN119836342A (zh) 2025-04-15
WO2024046878A3 (fr) 2024-06-27
WO2024046878A2 (fr) 2024-03-07
EP4332170A1 (fr) 2024-03-06
EP4332170B1 (fr) 2024-10-16
HUE069789T2 (hu) 2025-04-28
ES2997987T3 (en) 2025-02-18
EP4332170C0 (fr) 2024-10-16
PL4332170T3 (pl) 2025-02-24

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