EP3990718A1 - Élément de construction en forme de plaque - Google Patents

Élément de construction en forme de plaque

Info

Publication number
EP3990718A1
EP3990718A1 EP20725073.9A EP20725073A EP3990718A1 EP 3990718 A1 EP3990718 A1 EP 3990718A1 EP 20725073 A EP20725073 A EP 20725073A EP 3990718 A1 EP3990718 A1 EP 3990718A1
Authority
EP
European Patent Office
Prior art keywords
layer
carrier plate
component according
wear layer
wood
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.)
Pending
Application number
EP20725073.9A
Other languages
German (de)
English (en)
Inventor
Guido Schulte
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.)
SCHULTE, GUIDO
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP3990718A1 publication Critical patent/EP3990718A1/fr
Pending legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/02—Flooring or floor layers composed of a number of similar elements
    • E04F15/04—Flooring or floor layers composed of a number of similar elements only of wood or with a top layer of wood, e.g. with wooden or metal connecting members
    • E04F15/041—Flooring or floor layers composed of a number of similar elements only of wood or with a top layer of wood, e.g. with wooden or metal connecting members with a top layer of wood in combination with a lower layer of other material
    • E04F15/042—Flooring or floor layers composed of a number of similar elements only of wood or with a top layer of wood, e.g. with wooden or metal connecting members with a top layer of wood in combination with a lower layer of other material the lower layer being of fibrous or chipped material, e.g. bonded with synthetic resins
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/02—Flooring or floor layers composed of a number of similar elements
    • E04F15/02038—Flooring or floor layers composed of a number of similar elements characterised by tongue and groove connections between neighbouring flooring elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/02—Flooring or floor layers composed of a number of similar elements
    • E04F15/10—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials
    • E04F15/102—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials of fibrous or chipped materials, e.g. bonded with synthetic resins
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/02—Flooring or floor layers composed of a number of similar elements
    • E04F15/10—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials
    • E04F15/107—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials composed of several layers, e.g. sandwich panels

Definitions

  • the invention relates to a plate-shaped component, in particular a floor panel.
  • Surface coverings for example floor coverings, come in a wide variety of designs.
  • Panel-shaped structural elements are widespread, in particular floor panels in the form of laminate or parquet with carrier panels made of compacted fiber materials.
  • On the upper side of the carrier plate there is usually a multi-layered wear layer.
  • This has a decorative layer, for example a resin-coated decorative paper.
  • the decorative layer determines the look of the laminate.
  • the so-called overlay forms a seal as the top layer and gives the component a high level of surface resistance.
  • a counter tension can be applied to the underside of the carrier plate. This is used for dimensional stability and moisture barrier. If necessary, impact sound insulation can also be provided on the underside.
  • click system In order to connect the components to one another, these are mostly provided with a so-called click system.
  • These are mechanical locking means on the grooves and on the tongues, which come into locking engagement with one another in the case of adjacent components in a floor covering. This is intended to avoid the formation of joints in the installed floor covering
  • DE 10 2013 113 478 A1 discloses a plate-shaped component in the form of a panel, which has a carrier plate and a top-side wear layer.
  • the carrier plate consists of a composite material made of fibers and a hydraulic binder.
  • the wear layer consists of a plastic reinforced with natural materials. The carrier plate and the wear layer are hot-pressed together.
  • a floor panel is also known from DE 10 2005 017 392 A1 which has a carrier plate, a wear layer with a decorative layer and an overlay being arranged above the carrier plate.
  • the carrier plate is formed on the basis of a mineral material and a binding agent.
  • DE 199 44 399 A1 includes a floor panel with a carrier plate from the prior art, the carrier plate being made of polyurethane or acrylate as a binder and filler.
  • Mineral fillers are used here, for example lime, quartz or sand.
  • DE 10 2014 002 154 A1 discloses a building panel, in particular for use as a floor, wall or ceiling panel with a Carrier plate on which locking contours are provided on the edge and a surface layer made of a mineral material.
  • the surface layer should have at least one layer of fiber cement.
  • a laminated structure produced under heat and pressure is described with a core consisting of a fiber cement board.
  • the decorative layer comprises a resin-impregnated paper intermediate layer onto which a resin-impregnated decorative overlay layer is laminated.
  • carrier boards based on cement or cement fiber do not have the best conditions for a multi-layer structure, depending on the application.
  • the previously explained three-layer structure of a plate-shaped component with profiled joining surfaces is common, the carrier plate consisting of a compacted fiber board.
  • the fiber boards are basically well suited for the purpose. They have the necessary stability, are easy to process and inexpensive. Nevertheless, there is potential for improvement with regard to the properties of use, in particular the resistance to moisture, weather conditions and fungal attack by fungal and / or pest infestation, for example by termites, but also with regard to sustainability.
  • the invention is based on the object of creating a qualitatively improved, panel-shaped component with advantageous usage properties, which is highly stable, has little warpage, is insensitive to moisture and has very good fire resistance.
  • Claim 1 shows the solution to the problem.
  • the plate-shaped component has a carrier plate and a top-side wear layer.
  • the carrier plate is formed on the basis of a wood material and / or a plant material and magnesium oxide (MaO).
  • the amount of the wood material and / or the plant material in the carrier plate is at least 65% and the proportion of magnesium oxide is at least 5%.
  • the wear layer has at least one layer made of a bonded powder mixture.
  • the powder mixture contains wood particles in a proportion between 25% and 75%.
  • the powder mixture also contains color pigments, corundum and resins, in particular thermoset resins in powder form. The resins are heat-activated and curable. It is also essential to the invention that the carrier plate and the wear layer are pressed together under the action of temperature and pressure.
  • the carrier plate is formed on the basis of a wood material and / or a plant material and magnesium oxide.
  • the proportion of wood-based material and / or plant material is at least 65%.
  • Wood-based materials are materials that consist of shredded wood, plant materials consist of shredded plants.
  • the wood particles and / or plant particles can be in the form of chips, fibers and / or powder.
  • bamboo in particular is used as a plant material.
  • the carrier plate consists at least for the most part of renewable, in particular rapidly renewable, raw materials.
  • Magnesium oxide is a binding agent and causes the carrier plates to become waterproof or highly water-resistant despite the comparatively high proportion of wood-based and / or plant-based material.
  • the invention realizes an optimum between the highest possible proportion of fiber material from renewable raw materials and the binding agent magnesium oxide.
  • the combination of the mineral binder magnesium oxide with the wood-based materials / vegetable materials in chip, fiber or powder form in the mixing ratios shown according to the invention allow the production of a high-quality panel-shaped component according to the invention.
  • the component according to the invention has an edge swelling of significantly less than 5%, and depending on the formulation, even less than 2%.
  • the product is flame retardant or, depending on the surface, also classified as non-combustible class A2.
  • the plate-shaped component according to the invention shows a significantly higher elasticity and deformability than known magnesium plates. This is particularly important for floor coverings with a thickness of 4 mm to 10 mm, especially if they are laid floating on a footfall sound insulation underlay.
  • the technological and ecological properties are optimally combined in the panel-shaped component according to the invention.
  • the carrier board is slightly compressible and thus corresponds in many properties to a wood fiber board, but is flame retardant, non-combustible and does not swell.
  • the panel-shaped component also absorbs only a little moisture.
  • the proportion of wood-based material and / or the proportion of plant material in the carrier plate is particularly preferably at least 75%.
  • the proportion of wood material and / or plant material in the carrier plate is at least 85%. It can also be a mixture of wood-based material and plant material form the basis of the carrier plate, the sum of wood material and plant material being in the range specified according to the invention.
  • the magnesium oxide is the determining binder in the base of the carrier plate. This is mixed with the wood-based materials and / or plant-based materials and pressed to form the carrier plate. Despite the high wood material or fiber material of more than 65%, the carrier plate does not swell, but is nevertheless elastic to a limited extent. As a result of the high proportion of wood or plant materials, a surface results which is suitable for direct pressing with the powder mixture provided according to the invention and optionally further layers of the wear layer.
  • the carrier board can contain further additives, for example fillers. Hydraulic binders in particular are additives.
  • magnesium chloride (MgCl 2) and / or calcium sulfate dihydrate (gypsum) (CaSO 4 2 H 2 O) or cement, for example lime cement, are particularly preferred.
  • the powder mixture is a fine or very fine, free-flowing bulk material.
  • the term powder also includes powder and dust.
  • the powder mixture preferably has a particle size of less than or equal to ( ⁇ ) 500 ⁇ m.
  • a stretched fibrous structure for example in the case of wood fiber particles, is also a powder in the sense of the invention.
  • the resin in the powder mixture or the wear layer is in particular a thermosetting resin, preferably a urea resin or a melamine resin.
  • One aspect of the invention provides for the pressing of the carrier plate and the wear layer in a short-cycle press or a continuous press.
  • the layers and the layers forming the layers are pressed under heat and pressure.
  • the pressure build-up and pressure reduction of the press can be regulated in stages.
  • the components that is to say the carrier plate or a large-area initial carrier plate and the components of the wear layer, are arranged in the press on the press table.
  • the press is closed and the temperature and pressure act on the components.
  • the resins form the main adhesive component in the wear layer.
  • the adhesive components primarily the resins and possibly other binder components, are activated and plasticized.
  • the resin in the wear layer is, in particular, polycondensation resin.
  • Melamine-based or polyurethane-based resins are preferably used. These can also be built into the wear layer as a separate powder layer.
  • the resins are melted in the powder mixture and the wear layer is formed. This also forms the surface of the wear layer.
  • the resin components harden.
  • the resin is formulated in such a way that it binds when it cools, but still has elastic properties.
  • the resins are preferably elasticized by adding polyurethane.
  • the wood particles in the powder mixture of the wear layer in the proportions specified according to the invention bring about a layer-appropriate absorption capacity for the resins and support their migration, wetting and binding capacity.
  • the system that forms the wear layer is coordinated in such a way that an optimized adhesive bond between the components is achieved after the resins have fully reacted.
  • the components themselves, their proportion and also their grain size and moisture content are optimized according to the layer and coordinated in such a way that dehesive surface tension and influences that impair adhesion, for example water vapor, are minimized or evened out.
  • a configuration which is advantageous in practice provides that the wear layer is constructed in multiple layers. For this purpose, several layers of powder mixture can be applied to the carrier plate. The multiple layers of powder mixture are then pressed together with the carrier plate.
  • layers made of other materials for example fleece layers or paper layers, in particular a decorative paper, to be built into the wear layer. These are also pressed together with the layer of powder or powder mixture and the carrier plate under pressure and temperature.
  • the wear layer has at least two layers of powder mixture.
  • at least two of the multiple layers of powder mixture are different in their composition.
  • the resin content and / or the resin itself is different from one another in the two layers.
  • the lower layer can have a higher proportion of resin than the powder mixture of the layer arranged above.
  • the resin content in the lower layer is between 40% and 70%.
  • the resin content of the layer above is lower and lies between 35% and 55%.
  • the powder mixture of the lower layer can contain a more reactive resin than a layer of powder mixture arranged above it. The measures set out above improve the bond between the carrier plate and the wear layer, in particular through a coordinated reactivity of the resin with regard to the curing time and the amount of resin.
  • the wear layer is provided with a decor.
  • the layer of bonded powder mixture can be provided with a decoration, in particular printed.
  • the wear layer can furthermore have at least one layer made of decorative paper, in particular made of melamine or polyurethane-impregnated paper, noble cellulose, fabric, decorative laminate, wood veneer or cork veneer.
  • a particularly advantageous embodiment provides that the wear layer has a veneer layer, in particular a veneer layer made of real wood or cork. This veneer layer forms the visible side of the wear layer.
  • the wear layer has a decor-imparting decor layer, in particular a resin-impregnated decor paper or a printed decor layer, as well as a wear protection layer arranged on the top.
  • the wear layer is reinforced by at least one reinforcement layer. This can improve the tear resistance of the wear layer and in particular of the decorative paper contained in the wear layer.
  • Nonwovens, glass fabrics or glass fleeces are used as reinforcement layers.
  • a stabilization layer can be integrated into the carrier plate. This can be a prefabricated stabilization layer that is embedded in the carrier plate during its manufacture. In particular, nonwovens, lattice or fabric layers are used as stabilization layers.
  • a carrier plate with a density of greater than or equal to (>) 700 kg / m 3 is advantageous.
  • the carrier plate has a density between greater than or equal to (>) 700 kg / m 3 and greater than or equal to (>) 1,800 kg / m 3 .
  • Particularly preferred is a carrier plate whose density is between 900 kg / m 3 and 1,400 kg / m 3 inclusive.
  • a carrier plate with a transverse tensile strength of greater than or equal to (>) 1.5 N / m 2 is also advantageous, in particular the carrier plate has a transverse tensile strength between 2.0 N / m 2 and 6.0 N / m 2 .
  • the wear layer can be ground flat. Depending on the surface requirements, an abrasive with a grain size of 80 or 120 can be used.
  • the surface of the carrier plate facing the wear layer can alternatively be provided with a surface-enlarging profile.
  • the surface-enlarging profiling takes place in particular by mechanical means, preferably by roughening. This can be done by grinding, brushing and / or embossing. Roughening the carrier plate increases its surface. The macroscopic conditions of the surface have an influence on the bond strength. As the surface area increases after roughening, the surface-dependent atomic and molecular interactions increase. This improves the adhesion between the carrier plate and the wear layer.
  • the mechanical processing of the surface of the carrier plate can also be useful in order to level out unevenness in the plate or layer. Furthermore, this allows the
  • Carrier plate surface can be provided with a structure.
  • a structure In addition to grinding, such a structure can also be created by milling, brushing or embossing.
  • This carrier plate with a recessed structure on the surface is pressed with the wear layer. This makes it possible to obtain structures on the surface, ie on the visible side of the component, which are deeper than the actual thickness of the wear layer.
  • the surface of the carrier plate can give a profile
  • the structures can be, for example, serrated structures or joint-like depressions. This enables the reproduction of stone or tile decors.
  • the structure or the structure image can then be recognized on the finished plate-shaped component.
  • the panel-shaped component according to the invention is in particular a floor panel.
  • the plate-shaped component has a top side, a bottom side and at least four edge sides. The edge sides are designed to be connected to edge sides of further plate-shaped components in order to cover an area of a room.
  • connecting means are also formed on the side edges of the carrier plate, for example in the form of tongue and groove and latching and / or click connections.
  • the carrier plate is provided with a seal at least on the underside.
  • the seal serves in particular to block off moisture or supports the resistance of the carrier plate to moisture, weathering and / or fungal attack.
  • a carrier plate is waterproof.
  • the panel-shaped components according to the invention are suitable for damp rooms.
  • the carrier plate is provided with a seal or sealant at the top and bottom as well as on the side edges or edge surfaces. Due to the binder in the carrier board, it shows almost no swelling behavior.
  • a counter-tension is preferably provided on the underside of the carrier plate. This serves as stabilization and can act as impact sound insulation.
  • the backing can be applied separately. It is possible and advantageous to apply the counter tension when pressing the carrier plate and the wear layer, that is, the counter tension layer is pressed together with the carrier plate and wear layer.
  • the balancing sheet preferably consists of an impregnated fleece or fabric layer. These have tensile properties tailored to the finished component. In terms of material, the counter-pull can be made similar to the wear layer.
  • the counter-move is then formed from a bonded powder mixture.
  • the powder mixture contains powder, in particular wood particles and resin. Color pigments and corundum could also be contained in the powder mixture of the backing layer.
  • a large-format starting carrier plate with a rectangular configuration is provided.
  • Large-format means that the initial carrier plate has dimensions that are many times larger than the plate-shaped component to be produced.
  • the output carrier plate can, for example, have a width of 1,220 mm and a length of 2,440 mm.
  • the starting carrier plate is formed on the basis of a wood material and / or a plant material as well as magnesium oxide.
  • the wood-based material and / or the plant-based material make up the major share of at least 65% in total.
  • the proportion of magnesium oxide is at least 5%.
  • the initial carrier plate is not yet profiled at the edge, that is, the side edges do not yet have any connecting means.
  • the wear layer is arranged or the components forming the wear layer are applied to the initial carrier plate.
  • at least one layer of powder mixture is applied to the top of the starting carrier plate.
  • the powder mixture has wood particles in a proportion between 25% and 75% as well as color pigments, corundum and resin, in particular thermosetting resin in powder form.
  • the multi-layer body is pressed in a hot press.
  • the components of the multilayer body are positioned in the press.
  • the pressing takes place at temperatures in a range from 100 ° Celsius to 240 ° Celsius. This temperature is set on the surface of a press plate that is brought into contact with the component.
  • the temperature effect occurs from the side of the wear layer, that is to say from the top. In particular, this is preferably done when the counter-pull is applied later in a further separate operation.
  • the pressing temperature is in particular above 120 ° C.
  • the temperature is preferably between 180 ° C. and 210 ° C. inclusive.
  • the pressing time is in particular less than or equal to ( ⁇ ) 120 seconds.
  • the pressing time is between 5 seconds and 60 seconds, preferably between 5 seconds and 45 seconds.
  • the pressing pressure is greater than or equal to (>) 1,000 kilopascals (kPa) and can be up to and including 6,500 kPa.
  • the pressing pressure is preferably greater than or equal to (>) 3,500 kPa.
  • a short-cycle press or a continuous press are used as the press.
  • An adhesion promoter can be provided between the carrier plate and the wear layer.
  • the adhesion promoter improves the adhesion between the wear layer and the carrier plate.
  • the adhesion promoter is preferably applied separately as part of a surface treatment of the carrier plate or the starting carrier plate.
  • Modified polyolefins or also silane adhesion promoters are suitable as adhesion promoters.
  • Polyurethane undercoats or primers are also suitable.
  • An adhesion promoter that is advantageous for practical use is a PUR binder, which hardens by absorbing moisture from the ambient air or the starting carrier plate.
  • Moisture from the pressing process can escape into the carrier plate.
  • the surface of the wear layer can be given a structure, a pattern or a structure using a structure plate or structure Ornaments preserved.
  • the structure can vary in the degree of gloss in some areas. Furthermore, different structure depths are possible.
  • the top-side structure in the wear layer preferably has a depth of greater than or equal to (>) 50 ⁇ m.
  • the wear layer receives its final appearance during the pressing process.
  • the pressed wear layer can also be painted. Painting can take place on the pressed, large-area starting carrier plate or after it has been divided into individual components.
  • the pressed multi-layer body is removed from the press. Immediately afterwards or at a later time, the pressed multi-layer body is separated or divided into individual plate-shaped components. The individual components are profiled on their side edges in a subsequent work step. Profiling takes place after the pressed multi-layer body has cooled down at room temperature. When profiling, the individual components are provided with connecting means on their side edges, i.e. on the long and narrow sides.
  • the plate-shaped component can have a total thickness between 4 mm and 20 mm.
  • the wear layer can have a structure that fits synchronously with the decor image.
  • the surface of the finished component can have different degrees of gloss, preferably 3 to 4 different degrees of gloss, matching or coordinated with the decorative image of the decorative paper.
  • the wear layer has a thickness in a range from 0.10 to 0.50 mm.
  • a lubricant and / or sealant can be applied to the side edges of the carrier plate.
  • the side edges of the carrier plate can be provided with a water repellent, the water repellent containing antimicrobial and / or antibacterial agents.
  • the plate-shaped component according to the invention is waterproof.
  • the construction element absorbs a maximum of 5% water and does not tend to swell, as is the case with conventional wood-based construction elements or panel materials.
  • the edge swelling is less than 3% after 24 hours of immersion in water.
  • the component according to the invention can be classified as flame-retardant, non-combustible and non-swelling.
  • the panel-shaped construction element shows a slight increase in length and width and is therefore very dimensionally stable and can be installed floating over distances of more than 15 meters without movement joints.
  • a component according to the invention has a high level of resistance to moisture, weathering and fungal attack.
  • the component also has very good fire behavior. Practical tests suggest that the building element will be classified as flame-retardant in terms of fire behavior. In addition, it consists largely of renewable raw materials. This is a particularly advantageous aspect in terms of the usage properties.
  • Figure 1 is a side view of a panel-shaped component according to the invention.
  • FIG. 2 shows a section from the connection area of two components connected to one another
  • FIG. 3 shows a side view of a further embodiment of a plate-shaped component according to the invention and
  • FIG. 4 shows a section from the connection area of two interconnected components according to FIG.
  • FIGS. 1 to 4 are technically schematic and not to be understood to be true to scale.
  • Figure 1 shows a plate-shaped component 1 in the form of a floor panel.
  • FIG. 2 shows a section of two components 1 connected to one another.
  • the component 1 is configured in a rectangular manner and has a carrier plate 2 with a wear layer 3 on the top.
  • a counter tension layer 4 is provided on the underside of the carrier plate 2.
  • the counter-tension layer 4 supports the dimensional stability of the component 1 and serves to block moisture and to insulate footfall sound.
  • the carrier plate 2 is formed on the basis of a wood material and / or a plant material and magnesium oxide (MaO).
  • the proportion of timber and / or plant material in the carrier plate 2 is at least 65%, preferably the proportion of timber and / or plant material in the carrier board is at least 75%.
  • a carrier plate 2 which has a wood material content and / or a plant material content of at least 85% is particularly advantageous.
  • the proportion of magnesium oxide in the carrier plate is at least 5%.
  • a mixture of timber and plant material can also be used.
  • the wood and / or plant material particles are in the form of chips, fibers and / or powder. These are mixed with the magnesium oxide and pressed or connected in the form of plates.
  • other binders can be included. This particularly involves hydraulic binders.
  • the wear layer 3 is formed from a bonded powder mixture.
  • the powder mixture has wood particles in a proportion between 25% and 75%.
  • the powder mixture also contains color pigments, corundum and resins, in particular thermosetting resins, preferably urea resins or melamine in powder form.
  • the carrier plate 2 and the wear layer 3 are pressed together. This takes place under the influence of temperature and pressure.
  • the wear layer 3 has a layer made of the bonded powder mixture.
  • the wear layer 3 is constructed in multiple layers on the carrier plate 2.
  • the carrier plate 2 is formed on the basis of a wood material and / or a plant material and magnesium oxide (MaO).
  • a counter-tension layer 4 is arranged on the underside of the carrier plate 2.
  • the upper wear layer 3 is constructed in several layers. In the embodiment shown here, two layers 5, 6 are shown.
  • the layer 5 of the wear layer 3 consists of a bonded powder mixture which, according to the inventive requirement, consists of wood particles, color pigments, corundum and resins in powder form. The powder mixture is free-flowing or spreadable.
  • the top layer 6 is a decorative paper with an overlay or in particular a real wood veneer or a cork veneer. The top layer 6 is arranged on the layer 5 and together the two layers 5, 6 and the carrier plate 2 are hot-pressed together.
  • the plate-shaped component 1 is profiled on its side edges 7, 8 and provided with connecting means 9 and 10.
  • the connecting means 9 on the first side edge 7 has a continuous coupling groove 11 and a locking tongue 12 protruding on the bottom.
  • a continuous, nose-like rib 13 is formed at the free end of the locking tongue 12.
  • the locking means 10 is formed by a protruding coupling spring 14.
  • a latching groove 15 is provided on the underside of the clutch spring 14.
  • the coupling groove 11 and the coupling spring 14 are matched to one another in terms of their contour in such a way that, when the components 1 are laid, they come into locking engagement with one another when the components 1 are adjacent in a floor covering.
  • a multilayer body is formed.
  • a large-area starting carrier plate is provided, which is formed on the basis of a wood material and / or a plant material as well as magnesium oxide.
  • the proportion of wood-based material and / or the proportion of vegetable material total at least 65%.
  • the proportion of magnesium oxide is at least 5%.
  • the powder mixture contains wood particles in a proportion between 25% and 75% as well as color pigments, corundum and resins, in particular thermoset resins in powder form.
  • the counter-tension layer 4 can be arranged on the underside of the output carrier plate.
  • the counter-tension layer 4 can be constructed in the same way as the wear layer.
  • the multilayer body is then hot-pressed in a press.
  • the wear layer 3 is firmly connected to the output carrier plate, and the optional counter-tension layer 4 is also firmly connected to the output carrier plate.
  • the resin is plasticized in the adhesive layer 5.
  • the wear layer 3 is pressed and glued to the initial carrier plate.
  • the upper layer 6, which is in particular a veneer layer made of real wood or cork is infiltrated by the plasticized resin and embedded in the wear layer.
  • the pressing pressure is more than 1000 kilopascals (kPa), preferably the pressing pressure is greater than or equal to (>) 3,500 kilopascals (kPa).
  • the pressing temperature is above 100 ° C, in particular the pressing temperature is greater than or equal to (>) 120 ° C.
  • the pressing temperature is preferably between 180 ° C and 210 ° C.
  • the pressing time is less than 2 minutes (120 seconds). In particular, the pressing time is between 5 and 60 seconds, advantageously between 10 and 45 seconds.
  • the pressed multi-layer body is removed from the press and, after cooling, is separated into individual plate-shaped components 1.
  • the components 1 are profiled on their side edges 7, 8 and provided with the connecting means 9, 10.
  • the initial carrier plate can be sealed prior to the formation of the multilayer body.
  • the starting carrier plate can be coated with a seal on the underside or a seal can be applied to the underside.
  • a structure When pressing the multilayer body, a structure can be pressed into the surface of the wear layer.
  • a lubricant and / or sealant can be applied to the side edges 7, 8 of the carrier plate 2 on the finished components 1. Furthermore, the side edges 7, 8 of the components 1 can be provided with a water repellent, the water repellent containing in particular antimicrobial and / or antibacterial agents.
  • the side edges 7, 8 of the carrier plate 2 or of the plate-shaped component 1 can be quenched by a bevel on all four or only on two edges.
  • the bevel can be colored in contrast or to match the decor.
  • the bevels can be lacquered or transparent.
  • the pressed wear layer 3 is provided with a coating. Furthermore, the wear layer 3 and in particular the layer 5 made of a bonded powder mixture can be provided with a decoration. For this purpose, the layer 5 is in particular printed.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Laminated Bodies (AREA)
  • Floor Finish (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)

Abstract

L'invention concerne un élément de construction (1) en forme de plaque, en particulier un panneau de sol, présentant une plaque de support (2) pourvue d'une couche d'usure (3) supérieure. La plaque de support (2) est formée à base d'un matériau dérivé du bois et/ou d'un matériau dérivé de plantes et à base d'oxyde de magnésium (MaO). La proportion de matériau dérivé du bois et/ou de matériau dérivé de plantes est d'au moins 65 %. La proportion d'oxyde de magnésium est d'au moins 5 %. La couche d'usure (3) présente au moins une couche (5) constituée d'un mélange pulvérulent aggloméré, ce mélange pulvérulent contenant des particules de bois dans une proportion comprise entre 25 % et 75 %, ainsi que des pigments colorés, du corindon et des résines sous forme pulvérulente. La plaque de support (2) et la couche d'usure (3) sont comprimées ensemble sous l'action de la température et de la pression.
EP20725073.9A 2019-06-27 2020-04-28 Élément de construction en forme de plaque Pending EP3990718A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019117426.0A DE102019117426A1 (de) 2019-06-27 2019-06-27 Plattenförmiges Bauelement
PCT/DE2020/100344 WO2020259735A1 (fr) 2019-06-27 2020-04-28 Élément de construction en forme de plaque

Publications (1)

Publication Number Publication Date
EP3990718A1 true EP3990718A1 (fr) 2022-05-04

Family

ID=70680162

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20725073.9A Pending EP3990718A1 (fr) 2019-06-27 2020-04-28 Élément de construction en forme de plaque

Country Status (3)

Country Link
EP (1) EP3990718A1 (fr)
DE (2) DE102019117426A1 (fr)
WO (1) WO2020259735A1 (fr)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5425986A (en) * 1992-07-21 1995-06-20 Masco Corporation High pressure laminate structure
DE19944399A1 (de) * 1999-09-16 2001-04-12 Wpt Gmbh Polymertechnik Fussbodenelement mit klangarmer Trägerschicht
DE102005017392A1 (de) * 2005-04-14 2006-10-19 Witex Ag Fußbodenbelag
DE102012000468B4 (de) * 2012-01-13 2017-08-17 Falquon Gmbh Bodenpaneel und Verfahren zu seiner Herstellung
DE102013113478A1 (de) * 2013-12-04 2015-06-11 Guido Schulte Fußboden-, Wand- oder Deckenpaneel und Verfahren zu dessen Herstellung
DE102014002154A1 (de) * 2014-02-18 2015-08-20 Hülsta-Werke Hüls Gmbh & Co. Kg Gebäudeplatte, insbesondere zur Verwendung als Boden-, Wand- oder Deckenplatte
PT2955295T (pt) * 2014-06-12 2018-05-02 Flooring Technologies Ltd Processo para produção de um painel
DE102015111110A1 (de) * 2015-07-09 2017-01-12 Guido Schulte Verfahren zur Herstellung einer Dekorschicht sowie Bauelement und Verfahren zur Herstellung eines Bauelementes
NL2019108B1 (en) * 2017-06-22 2019-01-07 Champion Link Int Corp Floor panel and method of producing such a floor panel
DE102017124040A1 (de) * 2017-10-16 2019-04-18 Guido Schulte Verfahren zur Herstellung eines plattenförmigen Bauelements, plattenförmiges Bauelement und Verwendung des Bauelements

Also Published As

Publication number Publication date
DE102019117426A1 (de) 2020-12-31
DE202020102332U1 (de) 2020-05-29
WO2020259735A1 (fr) 2020-12-30

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