Method for coating the narrow surface of a board element

Abstract

The invention relates to a method for coating the narrow surface of preferably rectangular board elements, in particular furniture boards, wood composite boards, worktops, chipboards, lightweight construction boards, interior construction boards, doors, fiber cement boards or the like, - wherein first at least one surface of the board element is coated by means of a coating material, - wherein subsequently a narrow surface of the board element is also coated by means of this coating material, - wherein, for this purpose, coating material protruding beyond the surface of the board element is bent over, preferably at a right angle, so that it covers at least one narrow surface of the board element, - wherein the coating material is linearly separated before or after bending thereof in the bending region, and - wherein subsequently the linear separation region is filled by means of a plastics profile or a plastics compound, preferably composed of polymeric A-grade material, preferably by means of a melting method. The invention further relates to a board element, in particular a furniture board, wood composite board, worktop, chipboard, lightweight construction board, interior construction board, door, fiber cement board or the like, having a thickness D, comprising at least one coating element, and at least one edge strip profile having a width B2 of 5 to 120 mm, preferably 5 to 105 mm. The invention further relates to a method for producing such a board element, such as furniture boards and the like.

Description

[0001] REHAU Industries SE & Co. KG Rehau, August 28, 2025

[0002] Int. sign: 24.007 / 1 dr.lauk

[0003] Method for coating the narrow surface of a panel element

[0004] The invention relates to a method for coating the narrow surface of a panel element, in particular a furniture panel, wood-based panel, worktop, chipboard, lightweight panel, interior panel, door, fiber cement panel or the like.

[0005] The invention further relates to a panel element, in particular a furniture panel, wood-based panel, worktop, particleboard, lightweight panel, interior finishing panel, door, fiber cement panel or the like, with a thickness D, comprising at least one coating element, and at least one edge banding element having a width B2, preferably from 5 to 120 mm, more preferably from 5 to 105 mm. The invention further relates to a method for manufacturing such a panel element, such as a furniture panel and the like.

[0006] Edge banding elements of this type have primarily been used to decorate or protect the narrow surfaces / side edges of objects such as furniture panels, wood-based panels, chipboard, and the like. For this purpose, the edge banding elements are, for example, fixed to the narrow surfaces / side edges of the objects to be decorated or protected.

[0007] Sustainability is playing an increasingly important role in the narrow-area coating of panel elements. Therefore, efforts are being made to minimize waste production when using edge banding for narrow-area coating.

[0008] As a rule, the edgebanding elements mounted on the panel have a vertical overhang compared to the panel's narrow edges; that is, the profiles are wider than the panel is thick. These overhangs are typically removed from the edgebanding edges using a machining process, resulting in a flush vertical finish with the panel.

[0009] This method has proven successful in practice; however, it generates large quantities of milled material as waste. This is where the invention comes in.

[0010] For example, EP 1163864 discloses a panel element, in particular a furniture panel, and a method for its manufacture. It describes how an edge banding element / plastic profile is bonded to wood-based materials via its functional layer. REHAU Industries SE & Co. KG, Rehau, August 28, 2025

[0011] Int. Ref: 24.007 / 1 dr.lauk can be fixed by applying heat, for example, using laser technology. When fixing the edge banding element / plastic profile to the narrow surfaces of panel elements, it is difficult to achieve a secure hold, especially for polymeric edge banding elements / plastic profiles, with various materials.

[0012] Furthermore, DE 102004017319 B3 discloses a method for manufacturing a glazed panel for use in furniture and interior design, in which a glass panel, parallel to the broad sides, is coated with lacquer on its back and glued with the coated back side onto a wood-like substrate, such as a chipboard or fiberboard, wherein the glass panel is ground flat on its narrow sides before gluing, a glass lacquer is applied to these ground narrow sides, a panel with a larger perimeter relative to the glass panel is used as the substrate, and the glass panel is glued onto it with its narrow sides set back from the narrow surfaces of the substrate, subsequently the narrow surfaces of the substrate are milled flush with the narrow sides of the glass panel.An adhesive compatible with the glass lacquer on the narrow edges of the glass plate is applied to the now completely flat edge surfaces of the substrate and the lacquered narrow edges of the glass plate, as well as to the adhesive side of an edge banding strip to be applied. The edge banding strip is then pressed onto the flat edge surfaces of the substrate and the glass plate. The edge banding strip and the flat edge surfaces of the glass plate and the substrate are coated with a polyurethane hot melt adhesive. The edge banding strip is then glued onto the flat edge surfaces of the substrate and the glass plate with an overlap on all sides, and the excess is then trimmed.

[0013] German patent DE 102010008573A1 discloses a furniture panel and a method for manufacturing a furniture panel. The furniture panel comprises a panel-shaped base body; at least one edge banding applied to at least one edge of the base body; and a decorative layer on a front face of the base body. The decorative layer extends continuously along the edge of the front face, beyond a joint formed between the base body and the edge banding, onto one narrow side of the edge banding. The decorative layer is a printed image. The edge banding is chamfered at its narrow side, and a transparent topcoat is applied to the decorative layer.

[0014] The process for manufacturing a furniture panel is designed such that first the edge banding REHAU Industries SE & Co. KG Rehau, August 28, 2025

[0015] Int. sign: 24.007 / 1 dr.lauk is attached to the base body and then the decorative layer is applied in one operation to the front of the base body and the narrow side of the edge banding.

[0016] This is where the invention comes in, which is intended to optimize or improve the application possibilities for the narrow-area coating of panel elements.

[0017] The invention further aims to overcome the disadvantages of the prior art and to provide panel elements and edge banding elements that are economically and sustainably manufacturable, which on the one hand make it possible to achieve a high-quality optical impression and retain the previous functions from the prior art, and on the other hand include new functionalities, are preferably halogen-free and can also be manufactured in a significantly more sustainable way.

[0018] According to the invention, the first problem is solved by the features of claim 1. Further advantageous embodiments are described in the dependent claims.

[0019] It has surprisingly been shown that a method for narrow-surface coating of panel elements, in particular furniture panels, wood-based panels, worktops, chipboard, lightweight panels, interior finishing panels, doors, fiber cement panels or the like,

[0020] - wherein at least one surface of the plate element is first coated using a coating material,

[0021] - followed by the coating of a narrow surface of the panel element using this coating material,

[0022] - wherein, for this purpose, coating material projecting beyond the surface of the plate element is bent over, preferably at a right angle, so that it covers at least one narrow surface of the plate element, wherein the coating material is cut off linearly in the bending area before or after its bending, and wherein the linear cut-off area is then filled by means of a plastic profile or a plastic compound, preferably made of polymeric A-material, preferably by means of a melting process, fulfills this task. REHAU Industries SE & Co. KG Rehau, August 28, 2025

[0023] Int. sign: 24.007 / 1 dr.lauk

[0024] The advantage of this method is that, due to the identical surface coating, i.e., the identical coating material, the surface of the panel element and the narrow surface coating of the finished product form a perfect decorative composite.

[0025] The characteristic "at least one narrow surface of the plate element is covered" means not only that the narrow surface is covered by the coating material that previously protruded above the surface, but also that this coating material is connected to the narrow surface, in particular by a material bond (for example via a fused layer, functional layer or adhesive layer).

[0026] It is within the scope of the invention that after the application of the coating material and before filling the separation area with the A-material, the longitudinal edge sides of the coating material are processed, for example mechanical processing, in particular with a milling cutter, a scraper, a saw, an abrasive medium and the like.

[0027] To create the coating material that extends beyond the surface of the plate element, material removal can be carried out on the narrow surface of the plate element below and / or above the coating material.

[0028] The coating material extending beyond the surface of the plate element can be formed by the coating material and a portion of the plate element remaining attached to the coating material.

[0029] The coating of the narrow surface of the plate element can be carried out using the separated coating material or using the separated coating material and the part of the plate element remaining on the coating material.

[0030] The separated coating material, or the separated coating material together with the portion of the panel element remaining attached to the coating material, can form an edge banding element that is attached to the narrow surface of the panel element. REHAU Industries SE & Co. KG Rehau, August 28, 2025

[0031] Int. sign: 24.007 / 1 dr.lauk

[0032] One advantage of this method can be that, to improve formability / arrangement, the coating material in the bending area is preferably mechanically weakened or separated.

[0033] The melting process can, for example, be extrusion. It can also include, for example, filament welding, material printing, powder welding, hot melt adhesive application, injection molding (also called extrusion injection molding), or injection molding. Combinations of the aforementioned melting processes are also possible.

[0034] Before filling the separation area, it can be advantageous to preheat it to a temperature between 30°C and 350°C, preferably between 40°C and 250°C, and more preferably between 60°C and 130°C, for example by means of hot air, by means of a flame, by means of a corona process or by means of infrared radiation or by means of high-energy radiation (e.g. laser radiation or a plasma beam).

[0035] A-material, especially for the melting process, may include, for example, an amorphous polyalphaolefin (APAO), a polyurethane (PU), an acrylate (e.g., an ethyl methacrylate (EMA) or an ethylene butyl acrylate (EBA)), an epoxy resin, an ethylene vinyl acetate (EVA), a polyvinyl acetate (PVA), a polyamide (PA), a polyolefin (e.g., a polypropylene (PP) or polyethylene (PE)), a silicone, a thermoplastic elastomer (TPE), a thermoplastic polyurethane (TPU), a polyvinyl chloride (PVC), a polymethyl methacrylate (PMMA), an acrylonitrile butadiene styrene (ABS), or a polyethylene terephthalate (PET), as well as mixtures of two or more of the aforementioned substances.

[0036] Particularly suitable A-materials, especially for the melt process, can be graft copolymers, preferably maleic anhydride-grafted polypropylene (PP-MAH) or maleic anhydride-grafted polyethylene (PE-MAH) or a PP-EMA copolymer or a PP-EBA copolymer or a PE-EBA copolymer or a PE-EMA copolymer. REHAU Industries SE & Co. KG Rehau, August 28, 2025

[0037] Int. sign: 24.007 / 1 dr.lauk

[0038] The A-material, especially for the melting process, may preferably be of the same type or compatible with the coating material.

[0039] A-material, particularly for the melting process, can contain visible additives that result in a multicolored, marbled, or pigmented appearance. For this purpose, at least two thermoplastic materials with different melt flow indices can be used as A-material. In particular, the A-material, especially for the melting process, can be mixed with different color pigments to visually replicate a decorative effect on the coating material, such as a wood grain or marbling, as closely as possible.

[0040] The filling with A-material (i.e., with the plastic compound or the plastic profile) can be carried out by forming a slope that fills in cross-section, or a filling, outwardly curved arc, or a protective or design edge that protrudes beyond the upper and / or the lower plane of the panel element.

[0041] It is within the scope of the invention that after filling the separation area with the A-material, the surfaces of the A-material can be post-processed, for example, mechanical post-processing and / or structuring, in particular with a scraper, a milling cutter, a saw, an abrasive medium, an embossing device (e.g. an embossing roller), laser structuring and the like.

[0042] An advantage of the method is that the coating material ends above the lower edge of the narrow surface, forming a recess, preferably angular in cross-section, and this recess is also filled by a plastic profile or a plastic mass, preferably extruded or provided in another melting process, preferably made of polymeric A-material, preferably by means of a melting process.

[0043] Material A, as defined in the invention, is generally not recycled material, as it must meet high optical standards. REHAU Industries SE & Co. KG, Rehau, August 28, 2025

[0044] Int. sign: 24.007 / 1 dr.lauk

[0045] A-material can be expediently used in the form of unrecycled material, in particular new material, which may be polymeric, in particular thermoplastic, elastomeric (e.g. silicone-based) or thermosetting.

[0046] In particular, the A-material can also consist of silicone. Furthermore, the A-material can consist of several components. Formulating the A-material as a filler is also possible. Advantageously, the A-material can have a paste-like consistency during processing and then hardens or solidifies.

[0047] The A-material can be plastically deformable during its processing and solidify upon cooling or cross-link, if necessary, upon hardening.

[0048] Another advantage of the method is that a keder, especially with a plastic profile, can be used. 1 / 4 circular cross-section, can be used.

[0049] The plate element can be formed by a plate core with a thickness of D10 and the coating material arranged on the surface and / or the coating material arranged on the opposite surface.

[0050] A further advantage of the method is that the narrow surface of the panel element is machined by material removal over a thickness of D10. It has also been surprisingly found that a panel element, such as a furniture panel, wood-based panel, worktop, particleboard, lightweight panel, interior panel, door, fiber cement panel, and the like, with a thickness D, comprising at least one coating material on at least one surface of the panel element, and at least one edge banding element, wherein the edge banding element has at least one coating material and preferably a functional layer having a width B2, preferably from 5 to 120 mm, more preferably from 5 to 100 mm, is characterized in that the at least one edge banding element is based on the same material or at least comprises the same material as the coating material.that the at least one edge banding element has at least partially a lesser width B2 than the thickness D of the panel element, that the at least one edge banding element is arranged at least partially spaced away from a top or surface and / or a bottom or lower surface of the panel element on at least one longitudinal edge side L1, L2 and / or on at least one end edge side S1, S2, that on the at least one longitudinal edge side L1, L2 and / or REHAU Industries SE & Co. KG Rehau, August 28, 2025,

[0051] Int. sign: 24.007 / 1 dr.lauk solves this problem by providing at least one separate plastic profile or plastic compound made of A-material on at least one end edge side S1 , S2 of the at least one edge banding element.

[0052] This advantageously makes it possible to provide panel elements with edge banding elements / profile elements or plastic compound made of A-material, which not only realize the previously known functional effects, for example against moisture or temperatures, but in particular the edge banding elements / profile elements or plastic compound made of A-material can be manufactured much more sustainably and in particular be easily and fully recyclable.

[0053] Another advantage of the panel elements can be that the material price of the edge banding elements / profile elements or plastic compound made of A-material as well as their manufacturing costs are at a very low level, with at the same time better availability of the required raw materials, so that the edge banding elements / profile elements or plastic compound made of A-material used have a significantly lower “CO2 footprint” than those in the known state of the art.

[0054] An advantage of the panel element is that at least one edge banding element is arranged on at least one longitudinal edge side L1, L2 and / or on at least one end edge side S1, S2, spaced at least partially away from a top or surface and / or a bottom or lower surface of the panel element via at least one receiving space. This makes it possible to provide panel elements that are cost-effective, economical, and sustainable to manufacture.

[0055] A further advantage of the plate element can be that at least one separate plastic profile or the plastic mass made of A-material is arranged in at least one receiving space.

[0056] It can also be advantageous if at least one separate plastic profile or the plastic compound made of A-material is fixed in at least one receiving space. REHAU Industries SE & Co. KG Rehau, August 28, 2025

[0057] Int. sign: 24.007 / 1 dr.lauk

[0058] This makes it possible to provide cost-effective and economically produced, sustainable panel elements, as it may be possible to use several edge band elements of the same dimensions for panel elements with different thicknesses.

[0059] Another advantage of the plate element can be that the at least one edge band element has a width B2 that is 0.2 to 25%, preferably 0.5 to 20%, smaller than the thickness D of the plate element on at least one longitudinal edge side L1, L2 and / or on at least one end edge side S1, S2.

[0060] It is also advantageous for the plate element that the at least one edge banding element is arranged at least 0.10 to 20 mm, preferably 0.15 to 10 mm, from the top and / or bottom of the plate element on at least one longitudinal edge side L1, L2 and / or on at least one end edge side S1, S2. Plate elements can be provided in which, in particular, the edge banding element used can also be used for plate elements with different thicknesses.

[0061] A major advantage with regard to the sustainability of the panel elements can be that the material of the at least one edge banding element and / or the at least one separate plastic profile contains renewable raw materials from 0.01 to 100%, preferably 20 to 100%, particularly preferably from 40 to 100%, preferably proven according to mass balance e.g. via ISCC.

[0062] It has also proven advantageous for the plate element that a further coating can be arranged at least partially on at least one front side of the at least one edge banding element and / or the at least one separate plastic profile and / or the plastic mass made of A-material, pointing away from the narrow surface of the plate element.

[0063] It may also be advantageous that this additional coating has a thickness of 2 pm to 5 mm, preferably 10 pm to 3 mm, particularly preferably 40 pm to 2 mm.

[0064] It can also be advantageous if the additional coating on the front side, facing away from the narrow edge of the panel element, is designed as a layer, a paint application, or a printed layer. This coating, designed as a paint application or printed layer, is from REHAU Industries SE & Co. KG, Rehau, August 28, 2025.

[0065] Int. Ref: 24.007 / 1 dr.lauk Further coating can advantageously be achieved, in particular, by so-called multicolor printing, digital printing, gravure printing, and the like. In this advantageous embodiment, the intensity and the feel of the surface of the edgebanding element can be further optimized by the material, the thickness, and the shape of the further coating. The further coating can advantageously contain renewable raw materials from 0.01 to 100%, preferably 20 to 100%, and particularly preferably 40 to 100%, preferably verified by mass balance analysis, e.g., via ISCC.

[0066] All of this leads to an economical and, in particular, sustainable production of the panel elements with edge banding elements / profile elements or plastic compound made of A-material, as well as to further optimization possibilities, especially for the surface or the appearance of the edge banding elements / the plastic profile / the plastic compound made of A-material.

[0067] A further advantage of the panel elements is that at least one cover layer with a thickness of 2 to 60 µm, preferably 5 to 30 µm, can be arranged on the front face of the at least one edge banding element and / or the at least one separate plastic profile and / or the plastic compound made of A-material. It has also proven advantageous for the cover layer on the front face to comprise at least one acrylic polymer and to have a transmittance of up to 80% for visible light across its thickness, measured according to DIN EN ISO 13468-2:2006-07. The cover layer can advantageously contain 0.01 to 100% renewable raw materials, preferably 20 to 100%, and particularly preferably 40 to 100%.

[0068] In addition to an aesthetically pleasing top surface of at least one edge banding element and / or at least one separate plastic profile and / or the plastic compound made of A-material, mechanical protection can also be implemented, which, however, does not affect the appearance, in particular the optical structural effect of the edge banding element / the plastic profile / the plastic compound made of A-material.

[0069] In a further advantageous embodiment of the edge banding element, it has been shown that the back side of the at least one edge banding element and / or the at least one separate plastic profile can be subjected to a surface treatment by a corona process. REHAU Industries SE & Co. KG Rehau, August 28, 2025

[0070] Int. sign: 24.007 / 1 dr.lauk

[0071] It can be subjected to flame treatment, plasma treatment, silicatization, and similar processes. This allows for an optimized bond of the edgeband element for a wide variety of material combinations.

[0072] The material of the coating material and / or of the at least one edge banding element and / or of the at least one separate plastic profile can be polyolefin, such as polypropylene (PP) or polyethylene (PE); a styrene-based polymer, such as polystyrene (PS) or styrene-butadiene copolymer with a predominant styrene content (SB) or acrylonitrile-styrene-acrylate copolymers (ASA) or acrylonitrile-butadiene-styrene copolymers (ABS) or styreneacrylonitrile (SAN); polybutylene terephthalate (PBT); polyethylene terephthalate (PET); polyoxymethylene (POM); polyamide (PA);

[0073] polymethyl methacrylate (PMMA); polyphenylene oxide (PPO); polyetheretherketone (PEEK); polyphenylene sulfide (PPS); Liquid Crystal Polymer (LCP); polyamideimides (PAI);

[0074] Polyphenylsulfone (PPSU); Polyaryletherketone (PAEK); Polyacrylonitrile (PAN); Polyetherketone (PEK); Polyimide (PI); Polyisobutene (PIB); Polyphthalamide (PPA); Polypyrrole (PPY); Polyurethane (PUR); Polyvinyl alcohol (PVA); Polyvinyl acetate (PVAC); thermoplastic polymers based on olefins (TPE), such as thermoplastic polyurethane (TPU), and mixtures of at least two of these materials or comprising them.

[0075] Furthermore, the plate element can advantageously be designed such that the material of the coating material or of the at least one edge banding element and / or of the at least one separate plastic profile or the plastic mass made of A-material contains at least one of the following additives: stabilizers to improve resistance to light exposure, UV radiation and weathering; stabilizers to improve thermal and thermo-oxidative resistance; stabilizers to improve hydrolytic resistance; stabilizers to improve acidolytic resistance; lubricants; demolding aids; color additives; crystallization-regulating substances and nucleating agents; flame retardants; impact modifiers; fillers and / or plasticizers.

[0076] The additives can advantageously contain renewable raw materials from 0.01 to 100%, preferably 20 to 100%, particularly preferably 40 to 100%, preferably verified by mass balance analysis, e.g., via ISCC. REHAU Industries SE & Co. KG, Rehau, August 28, 2025

[0077] Int. sign: 24.007 / 1 dr.lauk

[0078] This makes it possible to provide panel elements that can be manufactured economically and cost-effectively, but which also realize the functions of edgeband elements / plastic profiles known from the state of the art, such as adhesion strength values ​​or peel strength values ​​as well as water resistance.

[0079] Another advantage of the panel element can be that at least one edge banding element and / or at least one separate plastic profile has a functional layer, at least in sections.

[0080] The functional layer can be arranged, in particular, after the coating material has been removed or after the coating material and the portion of the plate element remaining on the coating material have been removed, at the later contact surface of the edge banding element to the narrow surface of the plate element.

[0081] In addition to economical and cost-effective production, it may also be possible to optimize the fixation of the edge banding element / plastic profile to a panel element by varying the functional layer, for example by designing the functional layer as a so-called adhesion promoter layer and / or by designing the functional layer as a so-called hot melt adhesive layer and / or by designing the functional layer as a polymeric functional layer.Another preferred embodiment may relate to a plate element according to one of the preceding embodiments, wherein the functional layer of the at least one edge band element and / or the at least one separate plastic profile may be based on or comprise a polymeric material, preferably polypropylene (PP), acrylonitrile butadiene styrene copolymer (ABS), polymethyl methacrylate (PMMA), polyethylene terephthalate (PET), polyethylene (PE), styrene-ethylene butadiene styrene block copolymer (SEBS), polyamide (PA), olefin-based thermoplastic elastomer (TPO), urethane-based thermoplastic elastomer (TPU), thermoplastic copolyester (TPO), styrene block copolymers (SBS, SEBS, SEPS, SEEPS and MBS), thermoplastic copolyamide (TPA) and the like. The polymeric material can advantageously contain renewable raw materials from 0.01 to 100%, preferably 20 to 100%, particularly preferably 40 to 100%.This measure has the advantage that this material is readily available at low cost, easy to process, and also simple to chemically modify. In a further preferred embodiment, the functional layer can be designed as a thermoplastic functional layer, which allows the REHAU Industries SE & Co. KG Rehau, August 28, 2025.

[0082] Int. sign: 24.007 / 1 dr.lauk at least one edge banding element and / or at least one separate

[0083] Plastic profile according to the previously described embodiments without adhesive, i.e. without applying an additional so-called hot melt adhesive immediately before joining and without fixing a visible joint on a narrow side of a lightweight panel.

[0084] Another preferred embodiment can relate to a plate element according to at least one of the preceding embodiments, wherein the polymeric material of the functional layer of the at least one edge banding element and / or the at least one separate plastic profile can be a copolymer, preferably a graft copolymer, preferably a maleic anhydride-grafted polypropylene (PP-MAH). This measure has the advantage that the material composition, in particular the proportion of polar groups in the molecular structure, and thus the material properties, can be specifically adjusted.

[0085] Furthermore, it has proven to be extremely advantageous that the polymeric material of the functional layer of the at least one edge banding element and / or the at least one separate plastic profile can be selected from the group of polyurethanes (PUR), acrylates, epoxy resins, ethylene vinyl acetates (for example EVA dispersions), polyvinyl acetates (PVAC dispersions) and the like, as well as mixtures of two or more of the aforementioned substances.

[0086] A further advantage of the plate element can be that the polymeric material of the functional layer of the at least one edge banding element and / or the at least one separate plastic profile comprises an adhesion promoter system, preferably as aqueous dispersions or solutions in organic solvents of binder resins, which are selected in particular from the group consisting of polyurethanes, polyesters, acrylates, methyl methacrylates, epoxy resins, ethylene vinyl acetates, polyvinyl acetates, polyvinylidenes, natural rubber, as well as mixtures of two or more of the aforementioned binder groups. Used with or without the addition of crosslinking / activator components, e.g., based on polyisocyanates, amines, or peroxides.

[0087] It has also proven advantageous that the functional layer of the at least one edge banding element and / or the at least one separate plastic profile can have a thickness of 0.1 pm to 500 pm, preferably 0.2 pm to 480 pm, and particularly preferably 0.5 pm to 450 pm. This advantageously leads to economical and cost-effective production of the edge banding element. REHAU Industries SE & Co. KG, Rehau, August 28, 2025

[0088] Int. sign: 24.007 / 1 dr.lauk

[0089] The plastic profile ensures that the functional layer can be optimally adapted to the respective geometry of the edge banding element / plastic profile.

[0090] A method for manufacturing such a plate element with a plate core having at least one narrow surface and a thickness D10, and at least one coating material arranged on the top and / or bottom surface, can be characterized, for example, by the following steps: a) material removal from the narrow surface of the plate core over, preferably the entire thickness D10, below or above the coating material, wherein the at least one edge banding element is based on the same material or at least comprises the same material as the coating material; b) arrangement of the at least one edge banding element on the new narrow surface of the plate core created by material removal, wherein the at least one edge banding element has at least partially a width B2 smaller than the thickness D10 of the plate core of the plate element.c) Fixing the at least one edge banding element to the new narrow surface of the plate core, such that this is arranged at least partially spaced away from a top or surface and / or a bottom or lower surface of the plate element, d) that at least one separate plastic profile or a plastic compound made of A-material is arranged on at least one longitudinal edge side L1, L2 and / or on at least one end edge side S1, S2 of the at least one edge banding element.

[0091] The method for manufacturing such a plate element can further be characterized in that the at least one edge band element is arranged at least partially spaced from a top and / or a bottom surface of the plate element on at least one longitudinal edge side L1 , L2 and / or on at least one end edge side S1 , S2, over at least one receiving space.

[0092] Furthermore, the method for manufacturing such a plate element can be characterized by the fact that at least one separate plastic profile or the plastic mass made of A-material is arranged in at least one receiving space. REHAU Industries SE & Co. KG Rehau, August 28, 2025

[0093] Int. sign: 24.007 / 1 dr.lauk

[0094] It can also be advantageous in the method for manufacturing such a plate element that the at least one separate plastic profile or the plastic mass made of A-material is fixed in at least one receiving space.

[0095] Furthermore, the method for manufacturing such a plate element can advantageously be characterized by the fact that the at least one edge band element has a width B2 that is 0.2 to 25%, preferably 0.5 to 20%, smaller than the thickness D10 of the plate core of the plate element on at least one longitudinal edge side L1 , L2 and / or on at least one end edge side S1 , S2.

[0096] It is also advantageous in the method for manufacturing such a plate element that the at least one edge band element is arranged at least 0.10 to 20 mm, preferably 0.15 to 10 mm, from the top and / or bottom of the plate element on at least one longitudinal edge side L1 , L2 and / or on at least one end edge side S1 , S2.

[0097] The method for coating the narrow surface of a plate element, the plate element and the method for manufacturing a plate element will now be described in more detail using these non-restrictive exemplary embodiments.

[0098] Identical or functionally equivalent elements are provided with the same reference symbols.

[0099] They show:

[0100] Fig. 1 : perspective view of a plate element 1 ;

[0101] Fig. 2: Perspective view of a plate element 1 with a

[0102] Edge banding element 2;

[0103] Fig. 3: perspective view of a further plate element 1 with an edge banding element 2 and at least one separate plastic profile 5,5' or a plastic compound (5) made of A-material;

[0104] Fig. 4: perspective view of a further plate element 1 with an edge band element 2 and at least one separate plastic profile 5,5' or a plastic mass (5) made of A-material;

[0105] Fig. 5a-e: Cross-sectional view of a plate element at various stages of the narrow-area coating process; REHAU Industries SE & Co. KG Rehau, August 28, 2025

[0106] Int. sign: 24.007 / 1 dr.lauk

[0107] Fig. 6a-6c Cross-sectional view of another plate element in various stages of the process for narrow surface coating of the plate element.

[0108] Figure 1 shows a perspective view of a plate element 1.

[0109] The panel element 1, such as a furniture panel and the like, with a thickness D, comprising at least one coating material 9, as well as at least one further coating material 9, and preferably a functional layer (6) having a width B2 of 5 to 120 mm, preferably 5 to 105 mm, is characterized in that the at least one further coating material 9 is based on the same material as the coating material 9 and that it has at least partially a width B2 smaller than the thickness D of the panel element 1.

[0110] The method for manufacturing a plate element 1 with a plate core 10 having at least one narrow surface 15, 15', a thickness D10, and at least one coating material 9 arranged on the top surface 11 and / or on the bottom surface 12, is carried out in this exemplary embodiment with the following steps: a) material removal machining of the narrow surface 15 of the plate core 10 over the entire thickness D10, below or above the coating element 9, wherein the at least one further coating material 9 is based on the same material as the coating material 9,

[0111] The additional coating material 9 with width B2 is now applied to the new narrow surface 15' of the plate core 10, which was created by material removal.

[0112] The additional coating material 9 can be folded around its longitudinal axis and arranged on the new narrow surface 15' of the plate core 10.

[0113] However, it is also within the scope of the invention that the further coating material 9 is separated from the coating material 9 and then arranged on the new narrow surface 15' of the plate core 10.

[0114] Figure 2 shows a perspective view of another panel element 1 with an edge banding element 2. REHAU Industries SE & Co. KG Rehau, August 28, 2025

[0115] Int. sign: 24.007 / 1 dr.lauk

[0116] The panel element 1, such as a furniture panel and the like, with a thickness D, comprising at least one coating material 9, and at least one edge banding element 2, wherein the edge banding element 2 has at least one further coating material 9 and preferably in particular a functional layer 6 having a width B2 of 5 to 120 mm, preferably 5 to 105 mm, is characterized in that the at least one edge banding element 2 is based on the same material or at least comprises the same material as the coating material 9, that the at least one edge banding element 2 has at least partially a width B2 smaller than the thickness D of the panel element 1, and that at least one edge banding element 2 is arranged at least partially spaced apart from a top surface 11 and / or a bottom surface 12 of the panel element 1 on at least one longitudinal edge side L1, L2 and / or on at least one end edge side S1, S2.

[0117] Advantageously, the plate element 1 is designed such that the at least one edge band element 2 is arranged at least partially spaced from a top surface 11 and / or a bottom surface 12 of the plate element 1 on at least one longitudinal edge side L1, L2 and / or on at least one end edge side S1, S2, via at least one receiving space 7, 8.

[0118] It is also advantageous for the plate element 1 to be designed such that the at least one edge band element 2 has a width B2 that is 0.2 to 25%, preferably 0.5 to 20%, smaller than the thickness D of the plate element 1 on at least one longitudinal edge side L1, L2 and / or on at least one end edge side S1, S2.

[0119] The plate element 1 is further advantageously designed such that the at least one edge band element 2 is arranged at least 0.10 to 20 mm, preferably 0.15 to 10 mm, away from the top 11 and / or the bottom 12 of the plate element 1 on at least one longitudinal edge side L1, L2 and / or on at least one end edge side S1, S2.

[0120] Furthermore, the plate element 1 is designed such that the at least one edge band profile 2 has at least a partial functional layer 6.

[0121] The edge banding element 2 is designed such that the functional layer 6 is configured, for example, as a so-called adhesion promoter layer and / or as a so-called hot melt adhesive layer and / or as a polymeric functional layer. Furthermore, the edge banding element 2 is designed such that the polymeric material of the functional layer 6 of the at least one edge banding element 2 is selected from REHAU Industries SE & Co. KG, Rehau, August 28, 2025.

[0122] Int. sign: 24.007 / 1 dr.lauk

[0123] Group of polyurethanes (PUR), acrylates, epoxy resins, ethylene vinyl acetates (e.g. EVA dispersions), polyvinyl acetates (PVAC dispersions) and the like, as well as mixtures of two or more of the aforementioned substances.

[0124] In this embodiment, the edge banding element 2 is designed such that the polymeric material of the functional layer 6 of the at least one edge banding element 2 is selected from the group of polyurethanes (PUR), in particular thermoplastic polyurethanes (TPU).

[0125] The method for manufacturing a plate element 1 with a plate core 10 having at least one narrow surface 15, 15', a thickness D10, and at least one coating material 9 arranged on the top surface 11 and / or on the bottom surface 12, is carried out in this exemplary embodiment in the following steps: a) material removal machining of the narrow surface 15 of the plate core 10 over the entire thickness D10, below or above the coating material 9, wherein the at least one edge banding element 2 is based on the same material or at least comprises the same material as the coating material 9, b) arranging the at least one edge banding element 2 on the new narrow surface 15' of the plate core 10 created by material removal machining, wherein the at least one edge banding element 2 has at least partially a width B2 smaller than the thickness D10 of the plate core 10 of the plate element 1.c) Fixing the at least one edge banding element 2 to the new narrow surface 15' of the plate core 10, such that it is arranged at least partially spaced away from a top surface 11 and / or a bottom surface 12 of the plate element 1.

[0126] The method for manufacturing the plate element 1 is further characterized in that the at least one edge band element 2 is arranged at least partially spaced from a top surface 11 and / or a bottom surface 12 of the plate element 1 on at least one longitudinal edge side L1, L2 and / or on at least one end edge side S1, S2, via at least one receiving space 7, 8.

[0127] It can also be advantageous in the method for manufacturing the plate element 1 that the at least one edge banding element 2 has a width B2 that is 0.2 to 25%, preferably 0.5 to 20%, smaller than the thickness D10 of the plate core 10 of the plate element 1 on at least one longitudinal edge side L1, L2 and / or on at least one end edge side S1, S2. REHAU Industries SE & Co. KG Rehau, August 28, 2025

[0128] Int. sign: 24.007 / 1 dr.lauk

[0129] A further advantage of the method for manufacturing the plate element 1 may be that the at least one edge band element 2 is arranged at least 0.10 to 20 mm, preferably 0.15 to 10 mm, away from the top 11 and / or the bottom 12 of the plate element 1 on at least one longitudinal edge side L1 , L2 and / or on at least one end edge side S1 , S2.

[0130] Figure 3 shows a perspective view of a panel element 1, such as a furniture panel, with an edge banding element 2 and at least one separate plastic profile 5, 5'.

[0131] The process for coating a plate element 1 comprises the following steps:

[0132] Method for narrow-surface coating of panel elements 1, in particular furniture panels, wood-based panels, worktops, chipboard, lightweight panels, interior finishing panels, doors, fiber cement panels or the like,

[0133] - wherein at least one surface 11 , 12 of the plate element 1 is coated by means of a coating material 9,

[0134] - wherein a narrow surface 15, 15' of the plate element 1 is then coated using this coating material 9,

[0135] - wherein, for this purpose, coating material 9 projecting beyond the surface 11, 12 of the plate element 1 is bent over, preferably at a right angle, so that it covers at least one narrow surface 15 of the plate element 1, and

[0136] - wherein the coating material 9 is cut off linearly before or after its bending in the bending area, and

[0137] - wherein the linear separation area X is then filled by means of a plastic profile 5 or a plastic mass 5, preferably made of polymeric A-material, preferably by means of a melting process, solves the object of the invention.

[0138] It is advantageous that after applying the coating material 9 and before the

[0139] Filling of recesses 7, 8 and / or the corner recesses with the various REHAU Industries SE & Co. KG Rehau, August 28, 2025

[0140] Int. sign: 24.007 / 1 dr.lauk

[0141] A-materials undergo machining of the longitudinal edge sides of the coating material 9 and / or the recesses 7, 8 and / or the corner recesses, for example mechanical machining, in particular with a milling cutter, a scraper and the like.

[0142] One advantage of the process is that, to improve formability / arrangement, the coating material 9 is preferably mechanically weakened or separated in the bending area.

[0143] An advantage of the method is that the coating material 9 ends above the lower edge of the narrow surface, forming a recess 7, 8 which is angular in cross-section, and this recess 7, 8 is also filled by a plastic profile 5 or a, preferably extruded, plastic mass 5, preferably made of polymeric A-material, preferably by means of a melting process.

[0144] A further advantage of the method is that the narrow surface 15 of the plate element 1 is machined by material removal over the thickness D10.

[0145] A-material within the meaning of the invention is generally not recycled material, as it must meet high optical requirements.

[0146] The A-material is expediently used in the form of non-recycled material, particularly virgin material, which is, for example, polymeric, especially thermoplastic, elastomeric (e.g., silicone-based), or thermosetting. In particular, the A-material can also consist of a silicone. Furthermore, the A-material can consist of several components; it may also be formulated as a filler. The A-material expediently has a paste-like consistency during processing and then hardens or solidifies. The A-material can be plastically deformable during processing and may cross-link upon hardening.

[0147] Another advantage of the method can be that a keder, in particular with a plastic profile 5, can be used. 1 A / 4 circular cross-section is used. REHAU Industries SE & Co. KG Rehau, August 28, 2025

[0148] Int. sign: 24.007 / 1 dr.lauk

[0149] The panel element 1, such as a furniture panel and the like, with a thickness D, comprising at least one coating material 9, and at least one edge banding element 2, wherein the edge banding element 2 has at least one further coating material 9 and preferably in particular a functional layer 6 having a width B2 of 5 to 120 mm, preferably 5 to 105 mm, is characterized in that at least one edge banding element 2 is based on the same material as the coating material 9, that at least one edge banding element 2 has at least partially a width B2 smaller than the thickness D of the panel element 1, that at least one edge banding element 2 is arranged at least partially spaced apart from a top surface 11 and / or a bottom surface 12 of the panel element 1 on at least one longitudinal edge side L1,L2 and / or on at least one end edge side S1,S2,S2 of the at least one edge banding element 2 at least one separate plastic profile 5.5' is arranged.

[0150] The plate element 1 is also designed such that the at least one edge band element 2 is arranged at least partially spaced from a top surface 11 and / or a bottom surface 12 of the plate element 1 on at least one longitudinal edge side L1, L2 and / or on at least one end edge side S1, S2, over at least one receiving space 7, 8.

[0151] Furthermore, the plate element 1 is designed such that at least one separate plastic profile 5,5' is arranged in at least one receiving space 7, 8.

[0152] Another advantage of the plate element 1 is that at least one separate plastic profile 5, 5' is fixed in at least one receiving space 7, 8.

[0153] In this embodiment, the separate plastic profile 5 is arranged on the second longitudinal edge side L2 and the separate plastic profile 5' on the first longitudinal edge side L1 of the edge banding element 2.

[0154] The plate element 1 is further designed such that the edge band element 2 is fixed to a narrow surface 15, 15' of the plate element 1 via a functional layer 6.

[0155] The separate plastic profile 5, 5' was bonded to the respective longitudinal edge L1, L2 of the edge banding element 2 and the narrow surface 15 of the panel element 1 after the edge banding element 2 was fixed to the narrow surface 15' of the panel element 1. REHAU Industries SE & Co. KG Rehau, August 28, 2025

[0156] Int. sign: 24.007 / 1 dr.lauk

[0157] In this embodiment, the separate plastic profile 5.5' is designed such that it is arranged / fixed flush with the top surface 11 and the bottom surface 12 of the plate element 1.

[0158] Furthermore, the separate plastic profile 5, 5' is designed so that it is flush with the front of the edge banding element 2, which projects away from the narrow surface 15' of the panel element 1.

[0159] The plate element 1 is further designed such that another edge band element 2' is arranged on the second end face 22 of the edge band element 2.

[0160] The additional edge banding element 2' is fixed to a narrow surface 15 of the panel element 1 and, in this embodiment, is arranged such that a first end face 21 of the additional edge banding element 2' is flush with the front face of the edge banding element 2. The additional edge banding element 2' is also arranged such that its rear face covers the second end face 22 of the edge banding element 2 and is flush with the surface.

[0161] The method for manufacturing a plate element 1 with a plate core 10 having at least one narrow surface and a thickness D10, and at least one coating material 9 arranged on the top surface 11 and / or the bottom surface 12, is characterized by the following steps: a) material removal machining of the narrow surface 15 of the plate core 10 over the entire thickness D10, below or above the coating material 9, wherein the at least one edge banding element 2 is based on the same material as the coating material 9, b) arranging the at least one edge banding element 2 on the new narrow surface 15' of the plate core 10 created by material removal machining, wherein the at least one edge banding element 2 has at least partially a smaller width B2 than the thickness D10 of the plate core 10 of the plate element 1, c) fixing the at least one edge banding element 2 to the new narrow surface 15' of the plate core 10.so that it is arranged at least partially spaced from a top surface 11 and / or a bottom surface 12 of the plate element 1, d) that at least one separate plastic profile 5, 5' is arranged on at least one longitudinal edge side L1, L2 and / or on at least one end edge side S1, S2 of the at least one edge band element 2. REHAU Industries SE & Co. KG Rehau, August 28, 2025

[0162] Int. sign: 24.007 / 1 dr.lauk

[0163] The method for manufacturing such a plate element 1 is further characterized in that the at least one edge band element 2 is arranged at least partially spaced from a top surface 11 and / or a bottom surface 12 of the plate element 1 via at least one receiving space 7, 8.

[0164] Furthermore, the method for manufacturing such a plate element 1 is characterized by the fact that at least one separate plastic profile 5, 5' is arranged in at least one receiving space 7, 8.

[0165] It is also advantageous in the method for manufacturing such a plate element 1 that the at least one separate plastic profile 5, 5' is fixed in at least one receiving space 7, 8.

[0166] Furthermore, the method for manufacturing such a plate element 1 is characterized in that the at least one edge band element 2 has a width B2 that is 0.2 to 25%, preferably 0.5 to 20%, smaller than the thickness D10 of the plate core 10 of the plate element 1 on at least one longitudinal edge side L1 , L2 and / or on at least one end edge side S1 , S2.

[0167] It is also advantageous in the method for manufacturing such a plate element 1 that the at least one edge band element 2 is arranged at least 0.10 to 20 mm, preferably 0.15 to 10 mm, away from the top 11 and / or the bottom 12 of the plate element 1 on at least one longitudinal edge side L1, L2 and / or on at least one end edge side S1, S2.

[0168] In this embodiment, the separate plastic profile 5 is produced in a known extrusion process and is fixed in the receiving space 8 to the narrow surface 15 of the plate element 1 in a material-bonded manner, for example by adhesive.

[0169] The separate plastic profile 5 is manufactured in such a way that it has the same cross-section as the receiving space 8 on the narrow surface 15 of the plate element 1.

[0170] In this embodiment, the separate plastic profile 5' is inserted directly into the receiving chamber 7 via, for example, an extrusion nozzle, 3D printing nozzle, or the like. REHAU Industries SE & Co. KG, Rehau, August 28, 2025

[0171] Int. sign: 24.007 / 1 dr.lauk of the narrow surface 15 of the plate element 1 was introduced online and thus fixed in a material-coherent manner.

[0172] After its manufacture / application, the cross-section of the separate plastic profile 5' was adapted by machining so that the separate plastic profile 5' is flush with the top surface 11 of the panel element 1, which is coated with the coating material 9, and also flush with the edge banding element 2, which points away from the narrow surface 15 of the panel element 1. Figure 4 shows a perspective view of a panel element 1, such as a furniture panel, with an edge banding element 2, 2' and at least one separate plastic profile 5, 5' or a plastic compound 5 made of A-material.

[0173] The method for narrow-surface coating of panel elements 1, in particular furniture panels, wood-based panels, worktops, chipboard, lightweight panels, interior finishing panels, doors, fiber cement panels or the like,

[0174] - wherein at least one surface 11 , 12 of the plate element 1 is coated by means of a coating material 9,

[0175] - wherein a narrow surface 15 of the plate element 1 is then coated using this coating material 9,

[0176] - wherein, for this purpose, coating material 9 projecting beyond the surface 11, 12 of the plate element 1 is bent over, preferably at a right angle, so that it covers at least one narrow surface 15 of the plate element 1,

[0177] - wherein the coating material 9 is cut off linearly before or after its bending in the bending area, and

[0178] - wherein the linear separation area is then filled by means of a plastic profile 5 or a plastic mass 5, preferably made of polymeric A material, preferably by means of a melting process, which solves the object of the invention.

[0179] It is advantageous that after applying the coating material 9 and before filling the recesses 7, 8 and / or the corner recesses with the various REHAU Industries SE & Co. KG Rehau, August 28, 2025

[0180] Int. sign: 24.007 / 1 dr.lauk

[0181] A-materials undergo machining of the longitudinal edge sides of the coating material 9 and / or the recesses 7, 8 and / or the corner recesses, for example mechanical machining, in particular with a milling cutter, a scraper and the like.

[0182] One advantage of the process is that, to improve formability / arrangement, the coating material 9 is preferably mechanically weakened or separated in the bending area.

[0183] A further advantage of the method is that the narrow surface 15 of the plate element 1 is machined by material removal over the thickness D10.

[0184] An advantage of the method is that the coating material 9 ends above the lower edge of the narrow surface, forming a recess 7, 8 which is angular in cross-section, and this recess 7, 8 is also filled by a plastic profile 5 or a, preferably extruded, plastic mass 5, preferably made of polymeric A-material, preferably by means of a melting process.

[0185] A-material within the meaning of the invention is generally not recycled material, as it must meet high optical requirements.

[0186] A-material is expediently used in the form of non-recycled material, in particular virgin material, which is, for example, polymeric, especially thermoplastic, elastomeric (e.g., silicone-based), or thermosetting. In particular, the A-material can also consist of a silicone.

[0187] Furthermore, the A-material can consist of several components; it may also be possible to form the A-material as a filler. Advantageously, the A-material has a paste-like consistency during processing and then hardens or solidifies.

[0188] The A-material can be plastically deformable during its processing and may cross-link during its curing.

[0189] Another advantage of the method is that a keder, in particular with a plastic profile 5, can be used. 1 A / 4 circular cross-section is used. REHAU Industries SE & Co. KG Rehau, August 28, 2025

[0190] Int. sign: 24.007 / 1 dr.lauk

[0191] The panel element 1, such as a furniture panel and the like, with a thickness D, comprising at least one coating material 9, and at least one edge banding element 2, wherein the edge banding element 2 has at least one further coating material 9 and in particular a functional layer e having a width B2 of 5 to 120 mm, preferably 5 to 105 mm, is characterized in that at least one edge banding element 2 is based on the same material as the coating material 9, that at least one edge banding element 2 has at least partially a width B2 smaller than the thickness D of the panel element 1, that at least one edge banding element 2 is arranged at least partially spaced apart from a top surface 11 and / or a bottom surface 12 of the panel element 1 on at least one longitudinal edge side L1, L2 and / or on at least one end edge side S1, S2,S2 of the at least one edge banding element 2 at least one separate plastic profile 5.5' is arranged.

[0192] The plate element 1 is also designed such that the at least one edge band element 2 is arranged at least partially spaced from a top surface 11 and / or a bottom surface 12 of the plate element 1 over at least one receiving space 7,8.

[0193] Furthermore, the plate element 1 is designed such that at least one separate plastic profile 5, 5' is arranged in at least one receiving space 7, 8.

[0194] Another advantage of the plate element 1 is that at least one separate plastic profile 5, 5' is fixed in at least one receiving space 7, 8.

[0195] In this embodiment, the separate plastic profile 5 is arranged on the second longitudinal edge side L2 and the separate plastic profile 5' on the first longitudinal edge side L1 of the edge banding element 2.

[0196] The plate element 1 is further designed such that the edge band element 2 is fixed to a narrow surface 15' of the plate element 1 via a functional layer 6.

[0197] The separate plastic profile 5, 5' was bonded to the respective longitudinal edge L1, L2 of the edge banding element 2 and the narrow surface 15 of the panel element 1 after the edge banding element 2 was fixed to the narrow surface 15' of the panel element 1. REHAU Industries SE & Co. KG Rehau, August 28, 2025

[0198] Int. sign: 24.007 / 1 dr.lauk

[0199] In this embodiment, the separate plastic profile 5, 5' is designed such that it is arranged / fixed flush with the top surface 11 and the bottom surface 12 of the plate element 1.

[0200] Furthermore, the separate plastic profile 5, 5' is designed so that it is flush with the front of the edge banding element 2, which projects away from the narrow surface 15' of the panel element 1.

[0201] The plate element 1 is further designed such that another edge band element 2' is arranged on the second end face 22 of the edge band element 2.

[0202] The further edge band element 2' is fixed to a narrow surface 15 of the plate element 1 and in this embodiment is arranged such that a first end face 21 of the further edge band element 2' is spaced apart from the second end face 22 of the edge band element 2.

[0203] A receiving space 7, 8 is created between the second end face 22 of the edge band element 2 and the first end face 2T of the further edge band element 2'.

[0204] In this embodiment, the plate element is designed such that the receiving space 7 is formed between the second end face 22 of the edge band element 2 and the first end face 2T of the further edge band element 2'.

[0205] Furthermore, in this embodiment, a separate plastic profile 5' is arranged in the receiving space 7.

[0206] In this embodiment, the separate plastic profile 5' is arranged such that it is flush with the second end face 22 of the edge banding element 2 and the first end face 21 ' of the further edge banding element 2' over its entire length.

[0207] The method for manufacturing a plate element 1 with a plate core 10 having at least one narrow surface and a thickness D10, and at least one coating material 9 arranged on the top surface 11 and / or on the bottom surface 12, is characterized by the following steps: REHAU Industries SE & Co. KG Rehau, August 28, 2025

[0208] Int. Symbol: 24.007 / 1 dr.lauk a) material removal machining of the narrow surface 15 of the plate core 10 over the entire thickness D10, below or above the coating material 9, wherein the at least one edge banding element 2 is based on the same material as the coating material 9, b) arranging the at least one edge banding element 2 on the new narrow surface 15' of the plate core 10 created by material removal machining, wherein the at least one edge banding element 2 has at least partially a lesser width B2 than the thickness D10 of the plate core 10 of the plate element 1, c) fixing the at least one edge banding element 2 to the new narrow surface 15' of the plate core 10, such that it is arranged at least partially spaced from a top surface 11 and / or a bottom surface 12 of the plate element 1, d) that at least one longitudinal edge side L1 , L2 and / or at least one end edge side S1 ,S2 of the at least one edge banding element 2 at least one separate plastic profile 5.5' is arranged.

[0209] The method for manufacturing such a plate element 1 is further characterized in that the at least one edge band element 2 is arranged at least partially spaced from a top surface 11 and / or a bottom surface 12 of the plate element 1 via at least one receiving space 7, 8.

[0210] Furthermore, the method for manufacturing such a plate element 1 is characterized by the fact that at least one separate plastic profile 5, 5' is arranged in at least one receiving space 7,8.

[0211] Another advantage of the method for manufacturing such a plate element 1 is that the at least one separate plastic profile 5, 5' is fixed in at least one receiving space 7, 8.

[0212] Furthermore, the method for manufacturing such a plate element 1 is characterized in that the at least one edge band element 2 has a width B2 that is 0.2 to 25%, preferably 0.5 to 20%, smaller than the thickness D10 of the plate core 10 of the plate element 1 on at least one longitudinal edge side L1, L2 and / or on at least one end edge side S1, S2. REHAU Industries SE & Co. KG Rehau, August 28, 2025

[0213] Int. sign: 24.007 / 1 dr.lauk

[0214] It is also advantageous in the method for manufacturing such a plate element 1 that the at least one edge band element 2 is arranged at least 0.10 to 20 mm, preferably 0.15 to 10 mm, away from the top 11 and / or the bottom 12 of the plate element 1 on at least one longitudinal edge side L1 , L2 and / or on at least one end edge side S1 , S2.

[0215] In this embodiment, the separate plastic profile 5 is produced in a known extrusion process and is fixed in the receiving space 8 to the narrow surface 15 of the plate element 1 in a material-bonded manner, for example by adhesive.

[0216] The separate plastic profile 5 is manufactured in such a way that it has the same cross-section as the receiving space 8 on the narrow surface 15 of the plate element 1.

[0217] In this embodiment, the separate plastic profile 5' is inserted directly into the receiving space 7 on the narrow surface 15 of the plate element 1 via an extrusion nozzle, 3D printing nozzle and the like, and thus fixed in a material-bonded manner.

[0218] After manufacture / installation, the cross-section of the separate plastic profile 5' was adapted by machining operations so that the separate plastic profile 5' is flush with the top surface 11 of the plate element 1, which is coated with the coating material 9, and also flush with the edge band element 2 pointing away from the narrow surface 15 of the plate element 1.

[0219] Figures 5a to 5e below describe the process for coating the narrow surface of a plate element. It comprises the following steps:

[0220] Method for narrow-surface coating of a panel element, in particular a furniture panel, wood-based panel, worktop, particleboard, lightweight panel, interior panel, door, fiber cement panel or the like, wherein at least one surface 11, 12 of the panel element 1 is first coated or is coated by means of a coating material 9 (see Fig. 5a), REHAU Industries SE & Co. KG Rehau, August 28, 2025

[0221] Int. Mark: 24.007 / 1 dr.lauk wherein a coating of a narrow surface 15, 15' of the plate element 1 is then carried out using this coating material 9 (see Fig. 5c), wherein for this purpose coating material 9 projecting beyond the surface 11, 12 of the plate element 1 is bent over, preferably at a right angle, so that it covers at least one narrow surface 15, 15' of the plate element 1 (see Fig. 5b and 5c), and wherein the coating material 9 is cut off linearly in the bending area before or after its bending (see Fig. 5b), and wherein the linear cut-off area X is then filled by means of a plastic profile 5 or a plastic compound 5, preferably made of polymeric A-material, preferably by means of a melting process (see Fig. 5d or Fig. 5e).

[0222] To produce the coating material 9 projecting beyond the surface 11, 12 of the plate element 1, material is removed (for example with a milling cutter) from the narrow surface 15 of the plate element 1 below and / or above the coating material 9. The coating material 9 projecting beyond the surface 11, 12 of the plate element 1 is formed by the coating material 9 and a partial area T of the plate element 1 remaining attached to the coating material 9 (see Fig. 5b).

[0223] The coating 9 of the narrow surface 15, 15' of the plate element 1 is carried out using the separated coating material 9 and the partial area T of the plate element 1 remaining on the coating material 9 (see Fig. 5b and Fig. 5c).

[0224] The separated coating material 9 with the partial area T of the plate element 1 remaining on the coating material 9 forms an edge band element 2, which is attached to the narrow surface 15, 15' of the plate element 1 (see Fig. 5c).

[0225] To improve formability / arrangement, the coating material 9 is preferably mechanically weakened or removed in the bending area (indicated by the dotted line in Fig. 5b). REHAU Industries SE & Co. KG Rehau, August 28, 2025

[0226] Int. sign: 24.007 / 1 dr.lauk

[0227] The material used for the plastic profile 5 or the plastic compound 5 is usually unrecycled material, in particular new material, which is, for example, polymeric, in particular thermoplastic, elastomeric, silicone-based or thermosetting and can consist of several components, as well as being, for example, filler, putty and the like.

[0228] The material for the plastic profile 5 or the plastic compound 5 can have a pasty consistency during its processing and then harden or solidify.

[0229] The material for the plastic profile 5 or the plastic compound 5 can be plastically deformable during its processing and solidify or cross-link during its hardening.

[0230] The plate element 1 is formed by a plate core with a thickness D10 and the coating material 9 arranged on the surface 11 and the coating material 9 arranged on the opposite surface 12.

[0231] As shown in Fig. 5b, the narrow surface 15 of the plate element 1 is machined by material removal, but not over the entire thickness D10, since a partial area T of the plate element 1 remains on the coating material 9.

[0232] The filling with A-material (i.e., with the plastic mass 5 or the plastic profile 5) is carried out in Fig. 5e by forming a sloping surface that fills in cross-section and in Fig. 5d by forming a sloping surface that fills inwards and curves outwards.

[0233] Figures 6a to 6c below describe the process for coating the narrow surface of a plate element. It comprises the following steps:

[0234] Method for narrow-surface coating of a panel element, in particular a furniture panel, wood-based panel, worktop, particleboard, lightweight panel, interior panel, door, fiber cement panel or the like, wherein at least one surface 11, 12 of the panel element 1 is first coated or is coated by means of a coating material 9 (see Fig. 6a), REHAU Industries SE & Co. KG Rehau, August 28, 2025

[0235] Int. Mark: 24.007 / 1 dr.lauk wherein a coating of a narrow surface 15, 15' of the plate element 1 is then carried out using this coating material 9 (see Fig. 6c), wherein for this purpose coating material 9 projecting beyond the surface 11, 12 of the plate element 1 is bent, preferably at a right angle, so that it covers at least one narrow surface 15, 15' of the plate element 1 (see Figs. 6a and 6b), and wherein the coating material 9 is cut off linearly in the bending area before or after its bending (see Figs. 6a, 6b), and wherein the linear cut-off area X (see Fig. 6b) is then filled by means of a plastic profile 5 or a plastic compound 5, preferably made of polymeric A material, preferably by means of a melting process (see Fig. 6c).

[0236] The coating 9 of the narrow surface 15, 15' of the plate element 1 is carried out using the separated coating material 9 (see Fig. 6b and Fig. 6c).

[0237] The separated coating material 9 forms an edge band element 2, which is attached to the narrow surface 15, 15' of the plate element 1 (see Fig. 6c).

[0238] To improve formability / arrangement, the coating material 9 is preferably mechanically weakened or cut away in the bending area (indicated by the dotted line in Fig. 6b).

[0239] The coating material 9 above the lower edge of the narrow surface ends forming a recess 8, preferably angular in cross-section, and this recess 8 is also filled by a plastic profile 5 or a plastic mass 5, preferably extruded or provided by another melting process.

[0240] The material used for the plastic profile 5 or the plastic compound 5 is generally unrecycled material, in particular virgin material, which is, for example, polymeric, especially thermoplastic, elastomeric, silicone-based or thermosetting. REHAU Industries SE & Co. KG Rehau, August 28, 2025

[0241] Int. sign: 24.007 / 1 dr.lauk is formed and can consist of several components, and can also be formed, for example, as filler, putty and the like.

[0242] The material for the plastic profile 5 or the plastic compound 5 can have a pasty consistency during its processing and then harden or solidify.

[0243] The material for the plastic profile 5 or the plastic compound 5 can be plastically deformable during its processing and solidify or cross-link during its hardening.

[0244] The plate element 1 is formed by a plate core with a thickness D10 and the coating material 9 arranged on the surface 11 and the coating material 9 arranged on the opposite surface 12.

[0245] As shown in Fig. 6a, the coating material 9 can be arranged to project beyond the surface 11, 12 of the plate element 1 during the coating of the surface 11 of the plate element.

[0246] Alternatively, to create the coating material 9 extending beyond the surface 11, 12 of the plate element 1, material removal (for example, with a milling cutter) can be carried out on the narrow surface 15 of the plate element 1 below and / or above the coating material 9. The coating material 9 extending beyond the surface 11, 12 of the plate element 1 is then formed by the remaining coating material 9 of the plate element 1. In this case, the narrow surface 15 of the plate element 1 is machined over its entire thickness D10.

[0247] Using the method described in Figures 5 or 6, a plate element 1 can be produced for which the following applies:

[0248] Panel element 1, such as a furniture panel with a thickness D, comprising at least one coating material 9 on at least one surface 11, 12 of the panel element 1, and at least one edge banding element 2, wherein the edge banding element 2 has at least one further coating material 9 and preferably a functional layer 6 having a width B2 of 5 to 120 mm, preferably 5 to 100 mm, wherein the at least one edge banding element 2 is based on the same material or at least comprises the same material as the coating material 9, that the at least REHAU Industries SE & Co. KG Rehau, August 28, 2025

[0249] Int. Mark: 24.007 / 1 dr.lauk an edge banding element 2 has at least partially a lesser width B2 than the thickness D of the plate element 1, that the at least one edge banding element 2 is arranged at least partially spaced away from a top or surface 11 and / or a bottom or lower surface 12 of the plate element 1 on at least one longitudinal edge side and / or on at least one end side, that at least one separate plastic profile 5 or a plastic compound 5 made of A-material is arranged on the at least one longitudinal edge side and / or on at least one end side of the at least one edge banding element 2.The at least one edge band element 2 is arranged at least partially spaced from a top or surface 11 and / or a bottom or lower surface 12 of the plate element 1, at least on at least one longitudinal edge side and / or on at least one end side, via at least one receiving space 8, wherein the at least one separate plastic profile 5 or the plastic mass 5 made of A-material is also fixed in at least one receiving space 8.

[0250] - Patent claims -

Claims

REHAU Industries SE & Co. KG Rehau, August 28, 2025 Int. sign: 24.007 / 1 dr.lauk Patent claims 1. Method for narrow-surface coating of a panel element, in particular a furniture panel, wood-based panel, worktop, chipboard, lightweight panel, interior panel, door, fiber cement panel or the like, - wherein at least one surface (11 , 12) of the plate element (1) is coated or is coated by means of a coating material (9), - wherein a narrow surface (15, 15') of the plate element (1) is then coated using this coating material (9), - wherein, for this purpose, coating material (9) projecting beyond the surface (11, 12) of the plate element (1) is bent over, preferably at a right angle, so that it covers at least one narrow surface (15) of the plate element (1), and - wherein the coating material (9) is cut off linearly in the bending area before or after its bending, and - wherein the linear separation area (X) is then filled by means of a plastic profile (5) or a plastic mass (5), preferably made of polymeric A-material, preferably by means of a melting process.

2. Method for coating a plate element according to claim 1, characterized in that, in order to produce the coating material (9) projecting beyond the surface (11, 12) of the plate element (1), material removal is carried out on the narrow surface (15) of the plate element (1) below and / or above the coating material (9).

3. Method for coating a plate element according to claim 2, characterized in that the coating material (9) projecting beyond the surface (11 , 12) of the plate element (1) is formed by the coating material (9) and a partial area (T) of the plate element (1) remaining on the coating material (9). REHAU Industries SE & Co. KG Rehau, August 28, 2025 Int. sign: 24.007 / 1 dr.lauk 4. Method for coating a plate element according to one of the preceding claims 2 or 3, characterized in that the coating (9) of the narrow surface (15, 15') of the plate element (1) is carried out by means of the separated coating material (9) or by means of the separated coating material (9) and the partial area (T) of the plate element (1) remaining on the coating material (9).

5. Method for coating a plate element according to one of the preceding claims 2 to 4, characterized in that the separated coating material (9) or the separated coating material (9) together with the partial area (T) of the plate element (1) remaining on the coating material (9) forms an edge band element (2) which is attached to the narrow surface (15, 15') of the plate element (1).

6. Method according to one of the preceding claims, characterized in that, to improve the formability / arrangement, the coating material (9) is preferably mechanically weakened or separated in the bending area.

7. Method according to one of the preceding claims, characterized in that the coating material (9) terminates above the lower edge of the narrow surface forming a recess (7, 8), preferably angular in cross-section, and this recess (7, 8) is also filled by a plastic profile (5) or a plastic mass (5), preferably extruded or provided in another melting process.

8. Method according to one of the preceding claims, characterized in that the material for the plastic profile (5) or the plastic mass (5) is unrecycled material, in particular virgin material, which is, for example, polymeric, in particular thermoplastic, elastomeric, silicone-based or thermosetting and can consist of several components, and can also, for example, be designed as a filler, putty and the like.

9. Method according to one of the preceding claims, characterized in that the material for the plastic profile (5) or the plastic mass (5) during REHAU Industries SE & Co. KG Rehau, August 28, 2025 Int. sign: 24.007 / 1 dr.lauk has a pasty consistency during its processing and then hardens or solidifies.

10. Method according to one of the preceding claims, characterized in that the material for the plastic profile (5) or the plastic mass (5) is plastically deformable during its processing and solidifies or, expediently, cross-links during its curing.

11. Method according to one of the preceding claims, characterized in that the plate element (1) is formed by a plate core with thickness D10 and the coating material (9) arranged on the surface (11) and / or the coating material (9) arranged on the opposite surface (12).

12. Method according to claim 11, characterized in that the narrow surface (15) of the plate element (1) is machined by material removal over the thickness D10.

13. Panel element (1), such as a furniture panel and the like, manufactured by a method according to any one of claims 1 to 12, having a thickness D, comprising at least one coating material (9) on at least one surface of the panel element, and at least one edge banding element (2), wherein the edge banding element (2) has at least one further coating material (9) and preferably a functional layer (6) having a width B2 of 5 to 120 mm, preferably 5 to 100 mm, characterized in that the at least one edge banding element (2) is based on the same material or at least comprises the same material as the coating material (9), that the at least one edge banding element (2) has at least partially a width B2 smaller than the thickness D of the panel element (1), and that the at least one edge banding element (2) is formed on at least one longitudinal edge side (L1, L2) and / or on at least one end side (21,22) is arranged at least partially spaced from a top or surface (11) and / or a bottom or lower surface (12) of the plate element (1), such that at least one separate plastic profile (5, 5') or a plastic compound (5) made of A-material is arranged on the at least one longitudinal edge side (L1, L2) and / or on at least one end side (21, 22) of the at least one edge band element (2). REHAU Industries SE & Co. KG Rehau, August 28, 2025 Int. sign: 24.007 / 1 dr.lauk 14. Plate element (1) according to claim 13, characterized in that the at least one edge band element (2) is arranged at least partially spaced from a top or surface (11) and / or a bottom or lower surface (12) of the plate element (1) via at least one receiving space (7, 8).

15. Plate element (1) according to one of the preceding claims 13 or 14, characterized in that the at least one separate plastic profile (5,5') or the plastic mass (5) made of A-material is fixed in at least one receiving space (7, 8).

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