WO2007025623A1 - Procede pour produire des objets moules contreplaques, et produit correspondant - Google Patents

Procede pour produire des objets moules contreplaques, et produit correspondant Download PDF

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Publication number
WO2007025623A1
WO2007025623A1 PCT/EP2006/007639 EP2006007639W WO2007025623A1 WO 2007025623 A1 WO2007025623 A1 WO 2007025623A1 EP 2006007639 W EP2006007639 W EP 2006007639W WO 2007025623 A1 WO2007025623 A1 WO 2007025623A1
Authority
WO
WIPO (PCT)
Prior art keywords
impregnating agent
veneer
agent
layer
weight
Prior art date
Application number
PCT/EP2006/007639
Other languages
German (de)
English (en)
Inventor
Dietmar Votteler
Jörg SENTKO
Wolfgang Nowotny
Original Assignee
Votteler Lackfabrik Gmbh & Co. Kg
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Votteler Lackfabrik Gmbh & Co. Kg filed Critical Votteler Lackfabrik Gmbh & Co. Kg
Publication of WO2007025623A1 publication Critical patent/WO2007025623A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27D—WORKING VENEER OR PLYWOOD
    • B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
    • B27D1/04—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
    • B27D1/08—Manufacture of shaped articles; Presses specially designed therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B32B15/09—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/10—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of wood
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
    • B32B21/04—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B21/042—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material of wood
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
    • B32B21/04—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B21/08—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
    • B32B21/14—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood board or veneer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L97/00—Compositions of lignin-containing materials
    • C08L97/02—Lignocellulosic material, e.g. wood, straw or bagasse
    • 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
    • C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
    • C09D167/06—Unsaturated polyesters having carbon-to-carbon unsaturation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/02—Processes; Apparatus
    • B27K3/15—Impregnating involving polymerisation including use of polymer-containing impregnating agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/02—Composition of the impregnated, bonded or embedded layer
    • B32B2260/026—Wood layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/04—Impregnation, embedding, or binder material
    • B32B2260/046—Synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2274/00—Thermoplastic elastomer material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/31—Heat sealable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/546—Flexural strength; Flexion stiffness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/71—Resistive to light or to UV
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2471/00—Floor coverings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2479/00—Furniture
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
    • C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds

Definitions

  • the invention relates to a method for producing veneered molded parts according to the preamble of claim 1 and a means for this according to the preamble of claim 14.
  • a generic method and a generic agent are known, for example, from DE 100 33 528 C1.
  • the known method deals with the processing of dyed cover veneers and possibly colored intermediate veneers and is distinguished by the fact that the addition of binder resins in the aqueous dyeing liquor and the use of dry adhesive films as an intermediate layer for joining the veneers are avoided.
  • the invention has the object to improve the known method of the type specified in that the veneer pretreatment is simplified and economically feasible for individual veneers.
  • the solution according to the invention is based on the surprising finding that it is possible to dispense with the pre-hardening estimated as indispensable in the known method.
  • an impregnating agent which does not contain any UV initiators for precuring be applied to the covering veneer, and that the impregnating agent layer is subsequently only physically dried before it is cured at elevated temperature during the compression molding process.
  • a carrier while a solid molding of wood, metal or plastic can be used.
  • the covering veneer it is also possible for the covering veneer to be back-injected with a liquefied thermoplastic material while forming the support within the molding press.
  • the cover veneer with the dried impregnating agent layer is still flexible, so that it can be subjected to the molding process without any problems.
  • the covering veneer is mechanically stabilized by the impregnating layer in such a way that, without the risk of deformation on its side opposite the impregnating layer, it is coated with a glue layer, for example
  • a glue layer for example
  • the optionally used, usually thicker intermediate veneers can be provided on one side with such a layer of glue
  • the impregnating agent layer exerts a protective function which is comparable to that of a topcoat.
  • the method according to the invention also has the great advantage that individual cover veneers can also be treated in a simple, less cumbersome manner, for example individually or in a batch Method The method according to the invention is therefore practicable and economical to implement
  • the present invention furthermore relates to an impregnating agent having the features of claim 14
  • the impregnating agent according to the invention is particularly suitable for the use of a novel process and has the great advantage that it no longer contains any UV initiators
  • a particularly advantageous development of the invention is that a UV stabilizer is added to the impregnating agent.
  • UV initiators as had to be present in the prior art, interact with UV stabilizers in such a way that both of them
  • the UV stabilizer which protects the dyed or dyed-through veneer from the effects of UV rays, in particular bleaching by sunlight, has hitherto only been added to the topcoat with which the top veneer was finally coated
  • a UV stabilizer may already be included in the impregnating agent layer, which replaces the UV stabilizer in the topcoat or supplemented in its action.
  • topcoat for UV protection is therefore no longer mandatory, especially since the impregnating agent itself exerts a similar protective function
  • a topcoat containing a UV stabilizer may be additionally applied to provide protection - A - reinforce the veneer against UV rays and, for example, to prevent the fading of particularly sensitive pigments or dyes. This increases the number of pigments or dyes suitable for dyeing the top veneer so that new color effects can be achieved with optimum UV protection.
  • the impregnating agent contains at least one film-forming agent.
  • Film-forming agents are understood to mean physically drying binders which convey the physical drying of the impregnating agent by mixing with it, so that a film quickly forms on the surface of the covering veneer. The formation of a dust-dry impregnating agent layer on the surface of the covering veneer is thus sustainably promoted.
  • At least one heat-activatable hardener is used.
  • Preferred hardeners are those which are activated ("start") at a temperature of 80 ° C. or higher
  • These hardeners include in particular organic peroxides
  • An example of a suitable hardener is 1,1-di- (tert-butylperoxy This hardener is activated at 120 ° C. to 150 ° C.
  • the impregnating agent may be colorless. It may also contain dyes and / or pigments. It may also contain suitable additives, such as thixotropic agents.
  • a further preferred embodiment of the invention provides that the impregnating agent is applied to the surface of the cover veneer in a layer-forming manner, for example by rolling, spraying, casting or dipping.
  • the amount of impregnant used depends on the method by which it is applied to the surface of the face veneer.
  • the adjustment of the viscosity of the impregnating agent which is suitable for the selected process optionally followed by solvents and / or reactive diluents.
  • the cover veneers coated in this way with impregnating agent are physically dried, preferably by air drying. An acceleration of the physical drying, for example by convection or infrared dryer, is possible.
  • the amount of impregnating agent can be freely selected according to the requirements of the individual case.
  • the impregnating agent with a spray gun, eg. A cup gun, with a suitable nozzle size, z. Ex. 2 to 2.5 mm, applied.
  • the order quantity is between 60 and 180 g / m 2 .
  • the impregnating agent is particularly preferably applied by means of casting methods known per se.
  • the viscosity of the impregnating agent is selected so that a so-called “curtain curtain” is formed when pouring over the edge of a container.
  • This curtain mold is laid down in layers on the covering veneer running underneath, the amount of the impregnating agent applied in this way can be up to 200 g / m 2 .
  • the impregnating agent can also be applied to the cover veneer by means of a transfer method known per se.
  • the impregnating agent is first applied to a transfer film and dried.
  • the transfer film thus treated is placed on the cover veneer with the impregnating layer and subjected to the compression molding process before the veneer is pressed together with the support and optionally the intermediate filler (s) with the impregnating layer.
  • the impregnating layer is transferred to the covering veneer.
  • the transfer film is then completely removed from the impregnation layer.
  • the amount of the impregnating agent applied in this way can be freely selected according to the requirements of the individual case. It has proved to be particularly advantageous if a mixture is used as the impregnating agent, the
  • the at least one polyester resin is preferably selected from the group of allyl ether-containing air-drying gloss polyester resins and may be monomer-containing or monomer-free.
  • the at least one film-forming agent may, for example, be based on cellulose esters, preferably on cellulose mixed esters of acetic and butyric acid.
  • the at least one volatile organic solvent can be chosen, for example, from acetic acid esters of short-chain alcohols (to C4), such as ethyl acetate, propyl acetate, isopropyl acetate, butyl acetate, isobutyl acetate.
  • the solvent may also be a short-chain alcohol (to C4), in particular ethanol, propanol or isopropanol.
  • the at least one reactive diluent is preferably a polymerizable monomer, such as, for example, monostyrene, vinyltoluene or an ester of acrylic or methacrylic acid.
  • SiO 2 is preferably used as the thixotropic agent.
  • the at least one heat activated curing agent is preferably selected from the group of organic peroxides with an activation temperature of 80 0 C or higher, preferably from 120 0 C to 150 ° C.
  • Suitable light stabilizers are, for example, UV absorbers of the hydroxyphenylbenzotriazole type, but also light stabilizers of the type of, if appropriate, on
  • HALS compounds substituted nitrogen, HALS compounds or mixtures of these types of compounds.
  • the top veneer can be natural, bleached or bleached. Bleached deck veneers can also be stained or dyed through.
  • the intermediate veneers which may be used may be dyed through with a dark, preferably black, dye, so that a colored repainting is not required for edge trims or window cutouts.
  • a bleaching before dyeing is not mandatory, as it does not depend on light colors or light fastness.
  • the gluing can be carried out by conventional glue processes, for example using glue films, glue papers or wet glue. Glue foils and glue papers are pressed with the veneers. Wet glue is applied in a layer on the veneer surface and then dried at room temperature or at elevated temperature to 40 0 C. Such gluing methods are known per se.
  • At least one metal foil preferably made of aluminum, can be inserted between two adjacent veneers before the molding process and be glued to them during the molding process.
  • top veneers In order to protect the top veneers during the molding process and during transport on their surface, they may be provided on the side of the impregnating layer with a removable protective film preferably made of polypropylene, which can be removed after the compression molding process.
  • the impregnating agent can also be applied to the carrier side of the molded part. This has the advantage that for the further processing of the finished molded part, namely the Schuspritzmaschinen, the previously necessary additional primer deleted because the impregnating agent takes over the function of the primer.
  • an aqueous bleaching solution with 30 g / l 35% hydrogen peroxide is set. This bleach solution is initially at 80 to
  • the veneers can of course be bleached by applying, for example. Spraying, a bleaching solution on their surface.
  • the through-dyed precious wood veneers are fed via a circulating conveyor belt to a casting installation in which the impregnating agent running over the edge thereof forms a casting curtain with the above-described composition.
  • the casting curtain lays in a layer on a broad side surface of the passing under him cover veneers in an amount of 120 to 180 g / m 2.
  • the coated cover veneers are physically dried in air. The drying can be accelerated by drying devices, for example by means of convection or infrared rays. Even after drying, the flexibility of the cover veneers is retained for the subsequent compression molding process. They are dust-dry and therefore stackable.
  • Step 4 Coloring the intermediate veneers (optional)
  • Untreated beech veneers are heated to 105 ° C. with a black dye (reactive azo metal complex dye) and a urea resin-based binder in an autoclave and kept at this temperature for approximately 1 hour under appropriate overpressure.
  • the through-dyed veneers are removed after cooling and deaeration of the autoclave and dried.
  • the cover veneers and possibly the intermediate veneers are provided in a manner known per se with a glue film or a glue paper and pressed with these (see below, step 6).
  • Suitable glue films / glue papers for wood veneers are, for example, those of the company Kasko, type GM 400.
  • the glue films / glue papers are inserted between the individual veneers.
  • the cover veneers can be fed via a conveyor belt to a roller group, by means of which they are provided on their side opposite the impregnating layer with a wet glue layer based on heat-active polyacrylates, vinyl resins or polyurethane combinations in an amount of 30 to 40 g / m 2 .
  • a wet glue layer can be rolled on one of the broad side surfaces of the intermediate veneers in the passage.
  • the wet glue layer on the veneers is heated to an elevated temperature 40 C dried, so that the veneers are stackable. Then the so treated veneers are pressed (see below, step 6).
  • a plate-shaped support made of aluminum sheet, plastic or plywood, a group of black colored intermediate veneers of beech and a wood color dyed precious wood veneer are placed according to cutting cross over the interposition of at least one aluminum foil and provided with a protective film made of temperature-resistant plastic.
  • the veneers are either coated with wet glue or provided with glue paper / glue film (see above, step 5).
  • the resulting pressed part is pressed in a molding press at a temperature of about 130 to 150 0 C and a pressure of about 300 N / cm, wherein the individual layers are joined together.
  • the pressing pressure and the temperature are maintained for several minutes, depending on the thickness of the pressed part. As a rule of thumb, a pressing time of about 60 s per mm thickness of the pressed part must be expected.
  • the glue layers are connected to the veneers.
  • the protective layer is peeled off from the veneer surface.
  • the veneer surface of the crude molded article thus produced is cemented, ground and provided with a plurality of paint layers, for example based on polyester.

Landscapes

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

Abstract

L'invention concerne un procédé pour produire des objets moulés contreplaqués, consistant à relier au moins un support et un placage de recouvrement dans une presse à mouler, de manière plane, pour obtenir une pièce moulée brute. Cette invention est caractérisée : en ce qu'une couche continue constituée d'un produit d'imprégnation visqueux est appliquée sur une surface du placage de recouvrement ; en ce que la couche de produit d'imprégnation est ensuite séchée physiquement de manière à conserver la flexibilité du placage de recouvrement, et ; en ce que la couche de produit d'imprégnation est durcie à une température élevée lors du processus de moulage par compression. La présente invention se rapporte en outre à un produit d'imprégnation conçu en particulier pour être utilisé avec ledit procédé.
PCT/EP2006/007639 2005-08-31 2006-08-02 Procede pour produire des objets moules contreplaques, et produit correspondant WO2007025623A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200510041214 DE102005041214A1 (de) 2005-08-31 2005-08-31 Verfahren zur Herstellung von furnierten Formpressteilen sowie Mittel hierfür
DE102005041214.9 2005-08-31

Publications (1)

Publication Number Publication Date
WO2007025623A1 true WO2007025623A1 (fr) 2007-03-08

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ID=37203171

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/007639 WO2007025623A1 (fr) 2005-08-31 2006-08-02 Procede pour produire des objets moules contreplaques, et produit correspondant

Country Status (2)

Country Link
DE (1) DE102005041214A1 (fr)
WO (1) WO2007025623A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
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CN102423891A (zh) * 2011-09-01 2012-04-25 中国林业科学研究院木材工业研究所 一种以低密度杨木单板为基材的无甲醛实木复合地板及其制造方法
WO2012131110A2 (fr) 2011-04-01 2012-10-04 Dynea Oy Système de fabrication par compression caractérisé par une grande efficacité de production
CN108582377A (zh) * 2018-03-29 2018-09-28 华南农业大学 一种木材压缩-原位带压热处理一体化的方法及其制备的压缩木
EP3470189A1 (fr) * 2017-10-10 2019-04-17 Knitpro International Procédé de fabrication de bois stratifié multicolore compreg et produits d'utilité, d'ornement et décoratifs
CN111391043A (zh) * 2020-05-09 2020-07-10 寿光市鲁丽木业股份有限公司 一种高强度单板层积材的生产工艺

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DE102012025409A1 (de) * 2012-12-20 2014-06-26 Thomas Hofmann Leiterplatte mit echtholzlagenverbundwerkstoff
CN112549216B (zh) * 2020-12-04 2022-04-15 南京林业大学 一种阻燃胶合板的制备方法
DE102022115726A1 (de) 2022-06-24 2024-01-04 Bayerische Motoren Werke Aktiengesellschaft Verfahren zur Herstellung eines Interieurteilteils mit einem Dekorteil, ein Interieurteil sowie ein Fahrzeug

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CN111391043A (zh) * 2020-05-09 2020-07-10 寿光市鲁丽木业股份有限公司 一种高强度单板层积材的生产工艺

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