Method for coating the narrow face of a panel element

Abstract

The present invention relates to a method for coating the narrow face of a panel element, in particular of a furniture panel, wood material panel, worktop, chipboard, lightweight building panel, interior finishing panel, door, fiber cement panel or the like, wherein the coating of the narrow face is carried out by means of edge strip elements, the method being characterized in that: - firstly at least one edge strip element is fastened to at least one narrow face; - the panel element and the edge strip element are subjected to material-removing machining at least at one margin of said narrow face, so as to form at least one recess; - in the course of this material-removing machining, at least one long marginal side of the edge strip element fastened to said narrow face is at least partially removed; - the recess along the margin of the panel element is subsequently filled with a preferably polymeric material, preferably by means of a melting process; - such that said margin of the panel element can be shaped independently of the thickness of the edge strip element. The invention also relates to a panel element, in particular a furniture panel, worktop, chipboard, lightweight building panel, interior finishing panel, door, fiber cement panel or the like, having a thickness D and comprising at least one edge strip element which has, for example, a width B2 of 10 to 120 mm, preferably 15 to 100 mm.

Description

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

[0002] International reference: 24,078 / 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 narrow surface coating is carried out using edge banding elements,

[0006] The invention further relates to a panel element, in particular a furniture panel, worktop, chipboard, lightweight panel, interior panel, door, fiber cement panel or the like, with a thickness D, comprising at least one edge banding element, which at least partially comprises a polymeric material, which, for example, has a width B2 of 10 to 120 mm, preferably 15 to 100 mm.

[0007] 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.

[0008] Sustainability is playing an increasingly important role in the narrow-area coating of panel elements. Therefore, efforts are being made to use as much recycled filler material as possible in the corresponding edgebanding elements, e.g.

[0009] Returned materials or similar, so-called B-material, are used. However, this B-material does not always meet the optical, chemical, mechanical, or hygienic requirements for the surface of the narrow edges of the panels and can therefore only be used in the interior, which is not visible from the outside, of the applied edge banding elements.

[0010] As a rule, the edge banding elements have a vertical overhang compared to the narrow surfaces of the slabs, meaning the edge banding elements are wider than the slab is thick.

[0011] The corresponding protrusions are typically removed from the edgebanding edges by a machining process, resulting in a flush vertical finish with the panel. REHAU Industries SE & Co. KG Rehau, August 28, 2025

[0012] International reference: 24,078 / 1 dr.lauk

[0013] This method has proven effective in practice; however, it generates large quantities of milled material as waste. Furthermore, in the existing method, the desired radius determines the thickness of the edge banding element. For large radii, for example, to meet specific industry standards, a considerable amount of material is required. This is where the invention comes in, which aims to significantly improve the application possibilities of B-material and reduce waste in the narrow-area coating of panel elements. Moreover, the invention enables the realization of individual radius geometries while simultaneously reducing the thickness of the edge banding element.

[0014] Another advantage of the panel elements is that the material usage is at a lower level, so that the edge banding elements / profile elements used have a lower "CCh footprint" than those of the known state of the art.

[0015] 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 / profile element can be fixed to wood-based materials via its functional layer by applying heat, for example, using laser technology. When fixing the edge banding element / profile element to the narrow surfaces of panel elements, it is difficult to achieve a secure hold, especially for polymeric edge banding elements / profile elements, with various materials.

[0016] Furthermore, DE 102010011545 A1 discloses a method for manufacturing a furniture panel and such a furniture panel. This furniture panel is designed such that the top side of a substrate made of wood or wood substitute is bonded to a clear or satin-finished plastic sheet, the underside of the plastic sheet is coated with a colored lacquer, the top side of the plastic sheet is coated with a scratch-resistant clear lacquer, and the edges of the cut-to-size furniture panel are covered with a so-called plastic edge in a glass-like appearance.The process for manufacturing a furniture panel is designed as follows: in a first step, a translucent plastic panel is coated on the top side with a scratch-resistant clear lacquer; in a further step, the plastic panel is coated on the underside with a colored lacquer; in a further step, the plastic panel is bonded under pressure to a substrate made of wood or wood substitute; in a further step, after the adhesive has cured, the furniture panel is cut to size; and in a final process step, the cut furniture panel is finished with a plastic edge in a glass-like appearance. REHAU Industries SE & Co. KG, Rehau, August 28, 2025.

[0017] International reference: 24,078 / 1 dr.lauk

[0018] In current technology, the processing of edgebanding elements results in waste rates of sometimes more than 20%.

[0019] This is where the invention comes in, which on the one hand leads to a reduction in waste in the existing manufacturing process and on the other hand is intended to improve the application possibilities for the narrow-area coating of panel elements.

[0020] The invention further aims to overcome the disadvantages of the prior art and to provide panel elements with edge banding elements that can be manufactured economically and with a significant reduction in waste, 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 halogen-free and can also be manufactured in a significantly more sustainable way.

[0021] According to the invention, this problem is solved by the features of claim 1. Further advantageous embodiments are described in the dependent claims.

[0022] 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,

[0023] - wherein the narrow surface coating is effected by means of edge banding elements, characterized in that at least one edge banding element is first attached to at least one narrow surface, that the plate element and / or the edge banding element is machined by material removal at least at one edge of this narrow surface, forming at least one recess, wherein preferably, in the course of this material removal process, at least one longitudinal edge of the edge banding element attached to this narrow surface is at least partially removed, REHAU Industries SE & Co. KG Rehau, August 28, 2025

[0024] Int. sign: 24.078 / 1 dr.lauk that afterwards or simultaneously the recess along the edge of the plate element is filled with a, preferably polymeric, material, preferably by means of a melting process, so that a design of this edge of the plate element can be carried out independently of the thickness of the edge banding element, solves this problem.

[0025] The edge banding element according to the invention comprises, for example, at least one polymeric, in particular at least one thermoplastic material, at least one paper-based material (for example, a paper edge, a paper strip or a paper foil), at least one veneer-based material, at least one wood-based material or at least one laminate-based material and the like.

[0026] The edge banding element can be multi-layered.

[0027] The edge banding element can have a base layer or can be multi-layered and comprise at least one base layer and at least one outer layer, preferably covering the base layer. The material of the base layer and / or the outer layer of the edge banding element can contain renewable raw materials from 0.01 to 100%, preferably 20 to 100%, and particularly preferably 40 to 100%. The material of the base layer of the edge banding element can have a density of 0.2 g / cm³. 3 up to 1.9 g / cm³ 3 , preferably 0.3 g / cm³ 3 up to 1.1 g / cm³ 3according to DIN EN ISO 1183-1: 2019-09. The material of the base layer of the edgebanding element may have a foamed or porous structure. The material of the base layer of the edgebanding element may contain 5 to 100 wt.%, preferably 10 to 90 wt.%, particularly preferably 15 to 80 wt.%, of recycled material based on the total weight. The material of the at least one base layer and / or the material of the outer layer of the edgebanding element may have a Shore D hardness of at least 40 according to DIN EN ISO 868:2003-10. The material of the at least one base layer and / or the material of the outer layer of the edgebanding element may contain light- and / or radiation-absorbing additives in an amount of 0.01 to 5 wt.%, preferably 0.02 to 3.0 wt.%, based on the total amount. The material comprising at least one base layer of the edge banding element can be 5 to 80 wt.%, preferably 10 to 60 wt.%, particularly preferably 15 to 35 wt.%.-%, referred to REHAU Industries SE & Co. KG Rehau, August 28, 2025.

[0028] Int. Ref: 24.078 / 1 dr.lauk, comprising at least one filler, which may be selected, in particular, from silicates, carbonates, phosphates, sulfates, sulfides, and the like. The filler may also advantageously be selected from the group of layered silicates, as well as carbonates or sulfates of barium and calcium, and the like. In a particularly advantageous embodiment of the edge banding element, the filler of the at least one base layer may comprise, in particular, barium sulfate, calcium sulfate, calcium carbonate, talc, or wollastonite. The fillers may advantageously comprise renewable raw materials (for example, wood fibers or cellulose fibers) of 0.01 to 100%, preferably 20 to 100%, and particularly preferably 40 to 100%.The filler in the base layer material of the edgebanding element can have a mean particle size with a D50 value of 0.2 to 25 pm, preferably 0.5 to 15 pm, and particularly preferably 1 to 8 pm according to DIN 66165-1 TOIGOS. It is also advantageous for the edgebanding element that the filler in the base layer material has a particle size with a D98 value of 15 pm, preferably less than 15 pm, and particularly preferably less than 10 pm according to DIN 66165-1:2016-08. The material of the at least one base layer and / or the outer layer of the edgebanding element can be polyolefin, such as polypropylene (PP) or polyethylene (PE). a styrene-based polymer, such as polystyrene (PS) or styrene-butadiene copolymer with predominant styrene content (SB) or acrylonitrile-styrene-acrylate copolymers (ASA) or acrylonitrile-butadiene-styrene copolymers (ABS) or styrene acrylonitrile (SAN);.

[0029] Polybutylentherephthalat (PBT); Polyethylentherephthalat (PET); Polyoxymethylen (POM); Polyamid (PA); Polymethylmethacrylat (PMMA); Polyphenylenoxid (PPO);

[0030] Polyetheretherketone (PEEK); Polyphenylene sulfide (PPS); Liquid Crystal Polymer (LCP); Polyamideimide (PAI); Polyphenylsulfone (PPSII); 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) and mixtures of at least two of these materials.The material of at least one base layer and / or the outer layer of the edge banding element may contain 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. REHAU Industries SE & Co. KG Rehau, August 28, 2025.

[0031] International reference: 24,078 / 1 dr.lauk

[0032] Impact modifiers, fillers, and / or plasticizers. The additives can advantageously comprise renewable raw materials from 0.01% to 100%, preferably 20% to 100%, and particularly preferably 40% to 100%. The base layer and / or the outer layer of the edgebanding element can have a functional layer, at least in sections. In addition to economical and sustainable production, it is possible to optimize the fixation of the edgebanding element to a plate element by varying the functional layer, for example, by designing the functional layer as a so-called adhesion promoter layer, a so-called hot melt adhesive layer, or a polymeric functional layer.The functional layer of the edge banding element can be based on 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), thermoplastic olefin-based elastomer (TPO), thermoplastic urethane-based elastomer (TPU), thermoplastic copolyester (TPC), 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%, and particularly preferably 40 to 100%. In a further preferred embodiment, the functional layer can be designed as a thermoplastic functional layer, which makes it possible to manufacture an edge banding element without adhesive, i.e.without applying an additional hot-melt adhesive immediately before attachment and without a visible joint, to fix on a narrow side of a lightweight panel. The polymeric material of the functional layer of the edge banding element can be a copolymer, preferably a graft copolymer, preferably a maleic anhydride-grafted polypropylene (PP-MAH). The polymeric material of the functional layer of the edge banding element can be selected from the group consisting 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. The polymeric material of the functional layer of the edge banding element can include an adhesion promoter system, preferably in the form of aqueous dispersions or...Solutions in organic solvents of binder resins, which in particular consist 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 REHAU Industries SE & Co. KG Rehau, August 28, 2025.

[0033] International reference: 24,078 / 1 dr.lauk

[0034] Binder groups are selected. Used with or without the addition of crosslinking / activator components, e.g., based on polyisocyanates, amines, or peroxides. The polymeric material of the functional layer can be applied directly to the back of the base layer or at least one base layer during the direct fabrication of the edge band element. The functional layer of the edge band element can have a thickness of 0.1 pm to 300 pm, preferably 0.2 pm to 75 pm, and particularly preferably 0.5 pm to 30 pm.

[0035] The edge banding element can be spaced 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. The edge banding element can have a width B3, B4 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. The material of the at least one base layer and / or the material of the outer layer of the edge banding element can contain at least one additive, partially containing inorganic and / or organic pigments, in an amount of 0.01 to 5.0 wt.%, preferably 0.02 to 3.0 wt.%, based on the total amount.

[0036] Another advantage of the method is that, viewed in the plane of the plate, one or at least two edge band elements terminate flush with the corner area of ​​the plate element, forming a corner recess or recesses perpendicular to the plate plane, and that the corner recess or recesses are filled with the material or another material. This additional material can differ from the material, for example, in its flow behavior if the application of the additional material is perpendicular. Of course, it is also within the scope of the invention that the additional material is identical to the material.

[0037] It is within the scope of the invention that, after the edge banding element has been attached and before the recesses and / or corner recesses have been filled with the various materials, the longitudinal edges of the edge banding elements and / or the recesses and / or the corner recesses and / or the edge of the panel element can be processed, for example, by mechanical processing, in particular with a milling cutter, a saw, a scraper, an abrasive medium, and the like. REHAU Industries SE & Co. KG Rehau, August 28, 2025

[0038] International reference: 24,078 / 1 dr.lauk

[0039] It is further within the scope of the invention that, after attaching the edge band profile and before filling the recesses and / or the corner recesses with the various materials, the longitudinal edge sides of the edge band elements and / or the recesses and / or the corner recesses and / or the edge of the panel element can be machined, in particular with a milling cutter, a saw, a scraper, an abrasive medium and the like, whereby the volume of the recesses and / or the corner recesses in particular is increased.

[0040] When machining the edge of the plate element, at least one hollow structure forming an undercut can be simultaneously introduced into the plate element during material removal. This hollow structure is then filled with the material(s) used for backfilling. Advantageously, this also provides mechanical anchoring of the backfilling material. The hollow structure can, for example, have a T-shaped, Y-shaped, or V-shaped cross-section.

[0041] It is within the scope of the invention that after filling the recess or recesses and / or the corner recess or recesses with the different or identical materials, the surfaces of the materials can be post-processed, for example, by 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] 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.

[0043] Before filling the recess(s) and / or the corner recess(s), it may be advantageous to heat the recess(s) and / or the corner recess(s) to a temperature between 30°C and 350°C, preferably between 40°C and 250°C. REHAU Industries SE & Co. KG Rehau, August 28, 2025

[0044] Int. Ref: 24.078 / 1 dr.lauk further preferably preheat 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).

[0045] Several embodiments are fundamentally within the scope of the invention.

[0046] A fundamental advantage of the inventive method is that the milling of protruding edges of the edge banding elements is replaced or supplemented by a filling process with material in the corresponding edge areas of the panel element. This significantly reduces or even completely eliminates the generation of milling waste.

[0047] According to one embodiment of the invention, the plate element protrudes on both sides, and the resulting recesses are filled with material on both sides of the plate element. The edge banding element can, even during the process step of attaching it to at least one narrow surface of the plate element, have a width B2 smaller than the thickness D of the plate element.

[0048] In another embodiment of the invention, the edge banding element is flush or at least substantially flush with the plate element on one side, so that the filling with material only takes place on the other side of the plate element. Here too, the edge banding element can already have a width B2 smaller than the thickness D of the plate element during the process step of attaching the edge banding element to at least one narrow surface of the plate element.

[0049] In a further embodiment of the invention, the edge banding element has a greater width B2 than the thickness D of the plate element, so that the longitudinal edge sides L1, L2 or one of the longitudinal edge sides L1, L2 of the edge banding element project beyond or overhang the plate element.

[0050] Furthermore, within the scope of the invention, it can advantageously be provided that the filling of the recess or recesses and / or the corner recess or recesses is carried out by forming tools (for example, an injection nozzle, or an extrusion nozzle or an extrusion calibration nozzle or an injection mold half). REHAU Industries SE & Co. KG Rehau, August 28, 2025

[0051] Int. Ref: 24.078 / 1 dr.lauk or a forming roller). The forming tools are designed such that the material to be filled is placed in a mold, preferably under additional pressure, cooled, or calibrated. In a further embodiment of the invention, it is advantageously provided that the filling of the recess(s) and / or the corner recess(s) with a forming tool is carried out in such a way that the material to be filled is melted and, preferably under additional pressure, melted into the recess(s) and / or the corner recess(s), in particular by means of a melting process.

[0052] It is within the scope of the invention that after filling the recesses and / or the corner recesses with the various materials, these surfaces can be further processed, for example mechanically, in particular with a scraper, a milling cutter, a saw, an abrasive medium and the like.

[0053] The material and / or further material within the meaning of the invention can be a material that must meet high optical, chemical, and hygienic requirements. Preferably, a material is used that is, for example, polymeric, in particular thermoplastic, elastomeric (e.g., silicone-based), or thermosetting. In particular, the material can also consist of a silicone. Furthermore, the material can consist of several components; optionally, the material can also be formulated as a filler, in particular a plastic dispersion filler, a component filler, or as a putty, in particular inorganic or organic putties, e.g., made of synthetic polymers and the like. Advantageously, the material has a paste-like consistency during processing and then hardens.The material can be plastically deformable during processing and solidify upon cooling, or cross-link physically and / or chemically and / or by radiation.

[0054] The material and / or the additional material, particularly for the melting process, can be, 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, or a thermoplastic elastomer (TPE). REHAU Industries SE & Co. KG, Rehau, August 28, 2025

[0055] Int. Mark: 24.078 / 1 dr.lauk contains a thermoplastic polyurethane (TPU) or a polyvinyl chloride (PVC) or a polymethyl methacrylate (PMMA) or an acrylonitrile butadiene styrene (ABS) or a polyethylene terephthalate (PET), as well as mixtures of two or more of the aforementioned substances.

[0056] Particularly suitable material and / or further material, especially for the melting process, can be a graft copolymer, preferably a maleic anhydride-grafted polypropylene (PP-MAH) or a 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.

[0057] The material and / or the additional material, in particular for the melting process, may preferably be of the same type or compatible with the material of the edge banding element.

[0058] The material and / or the additional material, particularly for the melting process, may 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 may be used. In particular, the material, especially for the melting process, may be mixed with different color pigments to visually replicate a decorative effect on the edge banding profile, such as a wood grain or marbling.

[0059] Before filling the recess or recesses and / or the corner recess and / or the corner recesses, it may be advantageous to preheat the recess or recesses and / or the corner recess and / or the corner recesses to a temperature between 30°C and 350°C, preferably between 40°C and 250°C, 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).

[0060] Another advantage of the process can be that the filling with material can form a sloping surface in cross-section or a sloping surface extending outwards. REHAU Industries SE & Co. KG Rehau, August 28, 2025

[0061] Int. Ref: 24.078 / 1 dr.lauk curved arc or a protective or design edge projecting beyond the upper and / or lower plane of the panel element. In the case of an outwardly curved circular arc, the radius of the circular arc may preferably correspond to 1.5 to 50 times, more preferably to 2 to 25 times, the thickness of the edge banding element.

[0062] It has surprisingly been further discovered that a panel element, furniture panel, wood-based panel, worktop, chipboard, lightweight panel, interior finishing panel, door, fiber cement panel and the like, with a thickness D, comprising at least one edge banding element which at least partially comprises a polymeric material, which, for example, has a width B2 of 3 to 150 mm, preferably 10 to 120 mm, more preferably 15 to 105 mm, is characterized in that the edge banding element has at least partially a width B2 less than the thickness D of the panel element, that the edge banding element is arranged at least partially spaced from a top and / or a bottom of the panel element on at least one longitudinal edge side L1, L2, and that at least one separate profile element or a plastic compound made of the material is arranged on the at least one longitudinal edge side L1, L2 of the edge banding element, solves this problem.

[0063] This makes it advantageously possible to provide panel elements with edge banding elements and profile elements or edge banding elements and plastic compound made from the material, which not only realize the previously known functional effects such as mechanical strength and resistance to moisture or temperatures, but also significantly reduce the necessary material usage for the edge banding element.

[0064] An advantage of a panel element is that the edge banding element is arranged on at least one longitudinal edge L1, L2, spaced at least partially from a top and / or bottom surface of the panel element via at least one recess. This makes it possible to produce panel elements that are cost-effective, economical, and sustainable.

[0065] In a further embodiment of a panel element, the edge banding element has a greater width B2 than the thickness D of the panel element, such that the longitudinal edge faces L1, L2, or one of the longitudinal edge faces L1, L2 of the edge banding element project beyond the panel element. REHAU Industries SE & Co. KG Rehau, August 28, 2025

[0066] International reference: 24,078 / 1 dr.lauk

[0067] A further advantage of a plate element may be that at least one profile element or the plastic mass from the material is arranged in at least one recess.

[0068] It can also be advantageous if at least one profile element or the plastic mass is fixed in at least one recess.

[0069] The profile element can be designed such that it has been manufactured in a prior, independent process, for example as a so-called keder profile, and is inserted into or fixed in the recess. It is further within the scope of the invention that the plastic mass from the material fills the recess along the edge of the plate element, preferably by means of a melting process.

[0070] This makes it possible to provide cost-effective and economically produced, sustainable panel elements, as it is possible to use several edge band elements of the same dimensions for panel elements with different thicknesses.

[0071] A further advantage of the plate element can be that the profile element and / or the polymeric material for filling the recess (i.e. the plastic mass from the material) has the same optical properties with regard to color, gloss level or surface structure as the edge banding element.

[0072] However, it is also within the scope of the invention that the profile element and / or the polymeric material for filling the recess (i.e. the plastic mass from the material) can have different optical properties with regard to color, gloss level or surface structure, like the edge banding element.

[0073] Another advantage of the plate element can be that the profile element and / or the polymeric material for filling the recess (i.e., the plastic mass from the material) has the same mechanical properties regarding density, hardness, and the like as the edge banding element.

[0074] However, it is also within the scope of the invention that the profile element and / or the polymeric material for filling the recess (i.e., the plastic mass from REHAU Industries SE & Co. KG Rehau, August 28, 2025)

[0075] International reference: 24,078 / 1 dr.lauk

[0076] The material may have different mechanical properties regarding density, hardness, and the like, such as the edge banding element.

[0077] It can also be advantageous for the plate element that the profile element and / or the polymeric material for filling the recess (i.e., the plastic mass from the material) is designed in such a way that it is, for example, electrically conductive, i.e., can conduct electric current.

[0078] Another advantage of the plate element can be that the 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.

[0079] It can also be advantageous for the panel element that the edge banding element is arranged at least 0.10 to 20 mm, preferably 0.15 to 5 mm, away from the top and / or bottom of the panel element on at least one longitudinal edge side L1, L2. Panel elements can be provided in which, in particular, the edge banding elements used can also be used for panel elements of different thicknesses.

[0080] Another advantage is that radii larger than the thickness of the edge banding element can be achieved. For example, if the plastic material or the profile element forms an outwardly curved arc, the arc radius can preferably be 1.5 to 50 times, and more preferably 2 to 25 times, the thickness of the edge banding element.

[0081] A major advantage with regard to the sustainability of the panel elements can be that the material of the edge banding element and / or the profile element 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 plus.

[0082] It has also proven advantageous for the panel element that a coating can be applied, at least partially, to at least one front surface of the edge banding element and / or the profile element and / or the surface of the plastic material, as well as to the top and / or bottom of the panel element, pointing away from the narrow surface of the panel element. REHAU Industries SE & Co. KG Rehau, August 28, 2025

[0083] International reference: 24,078 / 1 dr.lauk

[0084] It may also be advantageous for the coating to have a thickness of 1 to 350 pm, preferably 2 to 300 pm, particularly preferably 5 to 250 pm.

[0085] It can also be advantageous for the coating on the front side of the edgebanding element, facing away from the narrow surface of the panel element, to be designed as a co-extruded or post-co-extruded layer, as a paint application, or as a printed layer. This coating, whether designed as a paint application or a printed layer, can advantageously be achieved in particular by so-called multi-color printing, digital printing, gravure printing, lamination, or similar processes. In this advantageous configuration, the intensity and feel of the edgebanding element's surface can be further optimized by the material, thickness, and shape of the coating.

[0086] The coating can advantageously contain renewable raw materials from 0.01 to 100%, preferably 20 to 100%, particularly preferably 40 to 100%.

[0087] All of this leads to an economical and cost-effective production of the panel elements with edge banding elements and profile elements or edge banding elements and plastic compound made of material, as well as to further optimization possibilities, especially for the surface or the appearance of the edge banding elements and the profile element or the edge banding elements and plastic compound made of material.

[0088] 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, is arranged on the front surface of the edge banding element / profile element / the surface of the plastic material. It has also proven advantageous for the cover layer to comprise at least one acrylic polymer on the front surface and to have a maximum transmittance of 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%.

[0089] In addition to an aesthetically pleasing front surface of the edge banding element / profile element / surface of the plastic material, mechanical protection can still be implemented, which, however, does not affect the appearance, in particular the visual structural effect of the edge banding elements / profile element / surface of the plastic material. REHAU Industries SE & Co. KG Rehau, August 28, 2025

[0090] International reference: 24,078 / 1 dr.lauk

[0091] Another advantage of the panel elements is that the polymeric material of the edgebanding element and / or the profile element and / or the polymeric material used to fill the recess (i.e., the plastic mass from the material) has a Shore D hardness of at least 5 according to DIN EN ISO 868:2003-10. This ensures economical and cost-effective production and also makes it possible to adapt the material of the edgebanding element and / or the profile element and / or the material to the specific requirements of the objects, such as the furniture to be edgebanded, etc.

[0092] Edge banding elements and profile elements, or the material itself, can also have combinations of different hardnesses.

[0093] In a further advantageous embodiment of the edge banding element, it has been shown that the back side of the edge banding element and / or the profile element can be subjected to surface treatment using corona treatment, flame treatment, plasma treatment, silicatization, and the like. This allows for an optimized bond between the edge banding elements for a wide variety of material combinations.

[0094] In a further advantageous embodiment of the panel elements, it has been found that the polymeric material of the edge banding element and / or the profile element and / or the polymeric material for filling the recess (i.e., the plastic mass from the material) can contain light- and / or radiation-absorbing additives in an amount of 0.01 to 5 wt.%, preferably 0.02 to 3.0 wt.%, based on the total amount. In this embodiment of the edge banding element / profile element, it can be optimally welded, for example, on the narrow sides of furniture pieces, by laser welding processes known per se, through the targeted introduction of energy into the material of the edge banding element and / or the profile element.

[0095] It has also proven advantageous that the polymeric material of the edge banding element and / or the profile element and / or the polymeric material for filling the recess (i.e., the plastic mass from the material) can contain at least one additive, partially containing inorganic and / or organic pigments, in an amount of 0.01 to 5.0 wt.%, preferably 0.02 to 3.0 wt.%, based on the total amount. This makes it possible to use the edge banding element / REHAU Industries SE & Co. KG Rehau, August 28, 2025

[0096] International reference: 24,078 / 1 dr.lauk

[0097] The profile element / the plastic mass made from the material can be applied cost-effectively and economically to the narrow sides of furniture using all currently known radiation-activated methods, e.g.

[0098] It can also be advantageous for the plate element that the profile element and / or the polymeric material for filling the recess (i.e. the plastic mass from the material) is designed in such a way that it preferably has a lower proportion of additives than the edge band element.

[0099] It can also be advantageous for the plate element that the polymeric material of the edge banding element and / or the profile element and / or the polymeric material for filling the recess (i.e., the plastic mass from the material) or a layer of the edge banding element or the profile element comprises 5 to 50 wt.%, preferably 10 to 45 wt.%, particularly preferably 15 to 35 wt.%, based on its total weight, at least one filler, wherein the filler is selected, in particular, from silicates, carbonates, phosphates, sulfates, sulfides, and the like. A further advantage is that the filler is selected from the group of layered silicates, as well as carbonates or sulfates of barium and calcium, and the like. In a particularly advantageous embodiment of the edge banding element / profile element of the plastic mass from the material, the filler comprises, in particular, barium sulfate, calcium sulfate, calcium carbonate, talc, and wollastonite.The fillers can advantageously also consist of renewable raw materials (for example, wood or cellulose fibers) from 0.01 to 100%, preferably 20 to 100%, particularly preferably from 40 to 100%.

[0100] A further advantage of the plate element may be that the profile element and / or the polymeric material for filling the recess (i.e., the plastic mass from the material) is designed in such a way that it preferably has a lower proportion of fillers than the edge band element.

[0101] A further advantage of the edge banding element can be that the filler in the material of the edge banding element / profile element / plastic compound has a mean particle size with a D50 value of 0.2 to 25 pm, preferably 0.5 to 15 pm, particularly preferably 1 to 8 pm according to DIN 66165-1:2016-08. REHAU Industries SE & Co. KG Rehau, August 28, 2025

[0102] International reference: 24,078 / 1 dr.lauk

[0103] It can also be advantageous for the edge banding element / profile element / plastic mass made from the material that the filler in the material has a particle size with a D98 value of 15 pm, preferably less than 15 pm, particularly preferably less than 10 pm according to DIN 66165-1 :2016-08.

[0104] The polymeric material of the edge banding element and / or the profile element and / or the polymeric material for filling the recess (i.e., the plastic mass from the material) 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 styrene acrylonitrile (SAN);

[0105] polybutylene terephthalate (PBT); polyethylene terephthalate (PET); polyoxymethylene (POM); polyamide (PA); Polycarbonate (PC), Polymethyl Methacrylate (PMMA); polyphenylene oxide (PPO); polyetheretherketone (PEEK); polyphenylene sulfide (PPS); Liquid Crystal Polymer (LCP); polyamideimides (PAI); polyphenylsulfone (PPSII); polyaryl ether ketone (PAEK);

[0106] 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), polyvinyl chloride (PVC), polyethylene furanoate (PEF) and mixtures of at least two of these materials.

[0107] Furthermore, the plate element can advantageously be designed such that the polymeric material of the edge banding element and / or the profile element and / or the polymeric material for filling the recess (i.e., the plastic mass from the 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; antimicrobial additives and / or plasticizers.

[0108] The additives can advantageously comprise renewable raw materials from 0.01 to 100%, preferably 20 to 100%, particularly preferably 40 to 100%.

[0109] Thus, a panel element is available that is both economical and cost-effective to manufacture, but also surpasses the limitations of the current state of the art. REHAU Industries SE & Co. KG Rehau, August 28, 2025

[0110] Int. sign: 24.078 / 1 dr.lauk known functions of the edge banding elements / profile elements / the plastic mass from the material such as adhesion strength values ​​or peel strength values ​​as well as water resistance are realized.

[0111] Another advantage of the panel element can be that the edge banding element and / or the profile element and / or the plastic mass made of the material has a functional layer at least in sections.

[0112] In addition to economical and sustainable production, it may also be possible to optimize the fixation of the edge banding element / profile element / plastic mass from the material to a plate element by varying the functional layer, for example by designing the functional layer as a so-called adhesion promoter layer and / or in which the functional layer is designed as a so-called hot melt adhesive layer and / or in which the functional layer is designed as a polymeric functional layer.

[0113] Another preferred embodiment relates to a plate element according to one of the previous embodiments, wherein the functional layer of the edge banding element and / or the profile element and / or the plastic mass can be based on a polymeric material, preferably polypropylene (PP), acrylonitrile butadiene styrene copolymer (ABS), amorphous polyalphaolefins (APAO), polymethyl methacrylate (PMMA), polyethylene terephthalate (PET), polyethylene (PE), styrene-ethylene butadiene styrene block copolymer (SEBS), polyamide (PA), thermoplastic olefin-based elastomer (TPO), thermoplastic urethane-based elastomer (TPU), thermoplastic copolyester (TPO), styrene block copolymers (SBS, SEBS, SEPS, SEEPS and MBS), thermoplastic copolyamide (TPA) and the like.

[0114] The polymeric material can advantageously contain renewable raw materials from 0.01% to 100%, preferably 20% to 100%, and particularly preferably 40% to 100%. This approach has the advantage that the material is readily available at low cost, easy to process, and also simple to chemically modify.

[0115] In a further preferred embodiment, the functional layer can be designed as a thermoplastic functional layer, which makes it possible to produce an edge banding element / a profile element / a plastic compound from the material according to REHAU Industries SE & Co. KG Rehau, August 28, 2025

[0116] Int. Mark: 24.078 / 1 dr.lauk previously described embodiments without adhesive, i.e. without applying an additional so-called hot melt adhesive immediately before joining, and without a visible joint, to fix on a narrow side of a lightweight panel.

[0117] A preferred embodiment may relate to a plate element according to at least one of the preceding embodiments, wherein the polymeric material of the functional layer of the edge banding element / profile element / plastic mass is a copolymer, preferably a graft copolymer, preferably a maleic anhydride-grafted polypropylene (PP-MAH). This 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.

[0118] Furthermore, it has proven to be extremely advantageous that the polymeric material of the functional layer of the edge banding element / profile element / plastic compound can be selected from the group of polyurethanes (PUR), acrylates, epoxy resins, ethylene vinyl acetates (e.g. EVA dispersions), polyvinyl acetates (e.g. PVAC dispersions) and the like, as well as mixtures of two or more of the aforementioned substances.

[0119] A further advantage of the plate element is that the polymeric material of the functional layer of the edge banding element and / or the profile element and / or the plastic compound incorporates 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. This can be used with or without the addition of crosslinking / activator components, e.g., based on polyisocyanates, amines, or peroxides. The polymeric material of the functional layer can be applied directly to the back side during the production of the edge banding element / profile element.

[0120] It has also proven advantageous that the functional layer of the edge banding element / profile element can have a thickness of 0.1 pm to 300 pm, preferably 0.2 pm to 75 pm, and particularly preferably 0.5 pm to 30 pm. This advantageously leads to economical and cost-effective production of the edge banding element. / REHAU Industries SE & Co. KG Rehau, August 28, 2025

[0121] Int. sign: 24.078 / 1 dr.lauk of the profile element to ensure that the functional layer of the respective geometry of the edge band element / the profile element is optimally adaptable.

[0122] The object of the invention, to provide a method for manufacturing such a plate element with a plate core having at least one narrow surface and a width, and preferably at least one coating arranged on the top and / or the bottom, is characterized by the following steps:

[0123] • Arrange the edge banding element on at least one narrow surface of the plate core

[0124] • fixing the edge banding element to at least one narrow surface of the panel core,

[0125] • Material removal machining of the plate element and / or the longitudinal edge sides L1, L2 of the edge banding element, so that the edge banding element is arranged at least partially spaced away from a top and / or a bottom of the plate element,

[0126] • that at least one separate profile element or a plastic compound made of a material is arranged on at least one longitudinal edge side L1, L2 of the edge banding element.

[0127] The method for manufacturing such a plate element can further be characterized in that the edge band element is arranged at least partially spaced from a top and / or a bottom of the plate element on at least one longitudinal edge side L1 , L2, via at least one recess.

[0128] Furthermore, the method for manufacturing such a plate element can be characterized by the fact that the at least one profile element or the plastic mass is arranged in at least one recess. It can also be advantageous in the method for manufacturing such a plate element that the at least one profile element or the plastic mass is fixed in at least one recess.

[0129] The profile element can be designed such that it has been manufactured in a prior, independent process, for example as a so-called keder profile, and is inserted into or fixed in the recess. It is further within the scope of the invention that the plastic mass from the material forms the recess. REHAU Industries SE & Co. KG Rehau, August 28, 2025

[0130] Int. sign: 24.078 / 1 Dr. Lauk fills along the edge of the plate element, preferably by means of a melting process.

[0131] Furthermore, the method for manufacturing such a plate element can be characterized by the fact that the edge band element has a width B2 on at least one longitudinal edge side L1, L2 that is 0.2 to 25%, preferably 0.5 to 20%, smaller than the thickness D10 of the plate core of the plate element.

[0132] The plate element described above within the scope of the invention, or used in the methods described above, can preferably have a density in the range of 150 kg / m³. 3 up to 5000 kg / m² 3 , especially in the range of 500 kg / m² 3 up to 1500 kg / m² 3 exhibit.

[0133] The plate element described above within the scope of the invention, or used in the methods described above, may preferably have a thickness in the range of 3 mm to 250 mm, for example in the range of 4 mm to 100 mm, and in particular in the range of 5 mm to 50 mm.

[0134] The width of the plate element described above within the scope of the invention, or used in the methods described above, can be in the range of 0.2 m to 7 m, for example in the range of 0.3 m to 5 m, in particular in the range of 0.4 m to 1.5 m.

[0135] The method for coating the narrow surface of a plate element, the plate element and the method for manufacturing the plate element will now be described in more detail using these non-restrictive exemplary embodiments.

[0136] They show:

[0137] Fig. 1: Perspective view of a plate element 1 with a

[0138] Edge banding element 2;

[0139] Fig. 2: Perspective view of another plate element 1 with a

[0140] Edge banding element 2;

[0141] Fig. 3: Perspective view of another plate element 1 with a

[0142] Edge banding element 2; REHAU Industries SE & Co. KG Rehau, August 28, 2025

[0143] International reference: 24,078 / 1 dr.lauk

[0144] Fig. 4: Perspective view of another plate element 1 with an edge banding element 2 and at least one profile element 5 or a plastic compound made of the material,

[0145] Fig. 5: Perspective view of a further plate element 1 with an edge banding element 2 and at least one profile element 5, 5' or a plastic compound made of the material,

[0146] Fig. 6a-f schematic cross-sectional views of another plate element with edge band elements 2.

[0147] Identical or functionally equivalent elements are provided with the same reference symbols.

[0148] In the exemplary embodiments, the plate element 1 can be configured such that it has a coating 9 on its upper surface 11. The coating 9 of the plate element 1 can be designed as a film and can, for example, have a thickness of at least 100 pm. The edge banding element 2 can be multilayered and, for example, have a base layer 3 and an outer layer 4. On the side that is connected to the plate element 1, the edge banding element 2 can have a functional layer 6.

[0149] Figure 1 shows a perspective view of a plate element 1 with an edge band element 2.

[0150] The panel element 1, furniture panel and the like, with a thickness D, comprising at least one edge banding element 2, which at least partially comprises a polymeric material having a defined width B2, preferably from 3 mm to 150 mm, more preferably from 10 to 120 mm, more preferably from 15 to 100 mm, is characterized in that the edge banding element 2 in this embodiment has at least partially a width B2 greater than the thickness D of the panel element 1.

[0151] Another advantage of the plate element 1 can be that the edge band element 2 has a functional layer e at least in sections.

[0152] In addition to economical and cost-effective production, it is also possible to improve the fixation of the REHAU Industries SE & Co. KG Rehau, August 28, 2025 by varying the functional layer 6.

[0153] International reference: 24,078 / 1 dr.lauk

[0154] to optimize the edge band element 2 on a plate element 1, for example by designing the functional layer 6 as a so-called adhesion promoter layer and / or by designing the functional layer 6 as a so-called hot melt adhesive layer and / or by designing the functional layer 6 as a polymeric functional layer.

[0155] In this embodiment, the functional layer 6 is arranged on the side of the edge band element 2 opposite the narrow surface 15.

[0156] In this embodiment, the functional layer e of the edge banding element 2 is further developed as a so-called hot melt adhesive layer.

[0157] In this embodiment, the functional layer e of the edge banding element 2 is based on a polymeric material, preferably polypropylene (PP).

[0158] The functional layer 6 of the edge band element 2 is brought into a meltable state via a suitable energy source E and establishes the material-bonded connection of the edge band element 2 with the narrow surface 15 of the plate element 1.

[0159] Furthermore, the plate element 1 can be designed such that the material of the edge band element 2 contains renewable raw materials from 0.01 to 100%, preferably 20 to 100%, particularly preferably 40 to 100%, as verified by mass balance e.g. via ISCC plus.

[0160] In this embodiment, the edge banding element 2 can be designed such that the material of the edge banding element 2 contains 5% renewable raw materials, preferably verified according to mass balance e.g. via ISCC plus.

[0161] Furthermore, the plate element 1 can be designed such that the material of the edge band element 2 has a density of 0.2 g / cm³. 3 up to 0.85 g / cm³ 3, preferably 0.40 g / cm² 3 up to 0.70 g / cm³ 3 according to DIN EN ISO 1183-1: 2019-09. In this embodiment, the plate element 1 can be designed such that the material of the edge banding element 2 has a density of 0.45 g / cm³. 3 according to DIN EN ISO 1183-1 : 2019-09.

[0162] In this embodiment, the material of the edge banding element 2 is polypropylene (PP). REHAU Industries SE & Co. KG Rehau, August 28, 2025

[0163] International reference: 24,078 / 1 dr.lauk

[0164] The material used in the invention is a material that must meet high optical, chemical, and hygienic requirements. It is a material that is, for example, polymeric, in particular thermoplastic, elastomeric (e.g., silicone-based), or thermosetting. In particular, the material can also consist of a silicone.

[0165] Furthermore, the material can consist of several components; if necessary, the material can also be formed as a filler, in particular plastic dispersion filler, component filler, as well as a putty, in particular inorganic or organic putties e.g. made of synthetic polymers and the like.

[0166] The plate element 1 can further be designed such that the material of the edge banding element 2 comprises at least 5 to 80 wt.%, preferably 10 to 75 wt.%, and particularly preferably 15 to 70 wt.%, of recycled material based on the total weight. In this embodiment, the plate element 1 is designed such that the material of the edge banding element 2 can comprise 50 wt.% of recycled material based on the total weight.

[0167] Advantageously, the plate element 1 can be designed such that the material of the edge banding element 2 contains light- and / or radiation-absorbing additives in an amount of 0.01 to 5 wt.%, preferably 0.02 to 3.0 wt.%, based on the total amount. In this embodiment, the plate element 1 can be designed such that the material of the edge banding element 2 contains light- and / or radiation-absorbing additives in an amount of 0.5 wt.%, based on the total amount.

[0168] Another advantage of the plate element 1 can be that the material of the edge band element 2 contains at least one additive, which may contain partially inorganic and / or organic pigments, in an amount of 0.01 to 5 wt.%, preferably 0.02 to 3.0 wt.%, based on the total amount.

[0169] In this embodiment, the plate element 1 can be designed such that the material of the edge banding element 2 contains at least one additive, partially containing inorganic and / or organic pigments, in an amount of 0.5% by weight, based on the total amount. REHAU Industries SE & Co. KG Rehau, August 28, 2025

[0170] International reference: 24,078 / 1 dr.lauk

[0171] The plate element 1 can advantageously be designed such that the material of the edge banding element 2 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; antimicrobial additives and / or plasticizers.

[0172] Figure 2 shows a perspective view of another plate element 1 with an edge band element 2.

[0173] The panel element 1, furniture panel and the like, with a thickness D, comprising at least one edge banding element 2, which at least partially comprises a polymeric material having a defined width B2 of preferably 3 to 150 mm, more preferably 10 to 120 mm, more preferably 15 to 100 mm, is characterized in that the edge banding element 2 in this embodiment has at least partially a width B2 less than the thickness D of the panel element 1.

[0174] A further advantage of the plate element 1 can be that the edge banding element 2 has a functional layer 6 at least in sections. In addition to economical and cost-effective manufacturing, it is also possible to optimize the fixation of the edge banding element 2 to a plate element 1 by varying the functional layer 6, for example, by designing the functional layer 6 as a so-called adhesion promoter layer, and / or as a so-called hot melt adhesive layer, and / or as a polymeric functional layer.

[0175] In this embodiment, the functional layer 6 can be arranged on the side of the edge band element 2 opposite the narrow surface 15.

[0176] In this embodiment, the functional layer e of the edge banding element 2 is further developed as a so-called hot melt adhesive layer. REHAU Industries SE & Co. KG Rehau, August 28, 2025

[0177] International reference: 24,078 / 1 dr.lauk

[0178] In this embodiment, the functional layer e of the edge banding element 2 is based on a polymeric material, preferably a copolymer, preferably a graft copolymer, preferably a maleic anhydride-grafted polypropylene (PP-MAH). The functional layer 6 of the edge banding element 2 is brought into a meltable state by means of a suitable energy source E and establishes the metallurgical bond between the edge banding element 2 and the narrow surface 15 of the plate element 1.

[0179] Furthermore, the plate element 1 can be designed such that the material of the edge band element 2 contains renewable raw materials from 0.01 to 100%, preferably 20 to 100%, particularly preferably from 40 to 100%, preferably verified according to mass balance e.g. via ISCC plus.

[0180] In this embodiment, the edge banding element 2 can be designed such that the material of the edge banding element 2 contains 60% renewable raw materials, as verified by mass balance calculation e.g. via ISCC plus.

[0181] In this embodiment, the material of the edge banding element 2 can be polypropylene (PP).

[0182] The plate element 1 can further be designed such that the material of the edge banding element 2 comprises at least 5 to 80 wt.%, preferably 10 to 75 wt.%, particularly preferably 15 to 70 wt.%, based on the total weight, recycled material. In this embodiment, the plate element 1 can be designed such that the material of the edge banding element 2 comprises 60 wt.%, based on the total weight, recycled material.

[0183] Advantageously, the plate element 1 can be designed such that the material of the edge banding element 2 contains light- and / or radiation-absorbing additives in an amount of 0.01 to 5 wt.%, preferably 0.02 to 3.0 wt.%, based on the total amount. In this embodiment, the plate element 1 can be designed such that the material of the edge banding element 2 contains light- and / or radiation-absorbing additives in an amount of 1.5 wt.%, based on the total amount.

[0184] Another advantage of plate element 1 can be that the material of the

[0185] Edge banding element 2 at least one, partially inorganic and / or organic REHAU Industries SE & Co. KG Rehau, August 28, 2025

[0186] International reference: 24,078 / 1 dr.lauk

[0187] The additive contains pigments in an amount of 0.01 to 5 wt.%, preferably 0.02 to 3.0 wt.%, based on the total amount.

[0188] In this embodiment, the plate element 1 can be designed such that the material of the edge band element 2 contains at least one additive, which may contain partially inorganic and / or organic pigments, in an amount of 0.4 wt.%, based on the total amount.

[0189] The plate element 1 can advantageously be designed such that the material of the edge banding element 2 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; antimicrobial additives and / or plasticizers.

[0190] In principle, the embodiment shown in Fig. 2 can be a conventional edge banding element 2 known in the prior art. The difference compared to the prior art is that here the edge banding element 2 is not wider than the thickness D of the panel element 1, but narrower. This eliminates the milling waste from flush milling the edge banding element 2.

[0191] Instead, the plate element 1 protrudes beyond the too narrow edge band element 2, and this protrusion is filled by the material, for example by appropriate application of a polymer melt (the plastic mass from material A) or also a profile element 5.

[0192] Figure 3 shows a perspective view of a plate element 1 according to a further embodiment of the invention with an edge band element 2.

[0193] The panel element 1, furniture panel and the like, with a thickness D, comprises an edge banding element 2, which at least partially comprises a polymeric material and has a width B2 of approximately 10 to 120 mm, preferably 15 to 105 mm, and is characterized in that the edge banding element 2 is arranged at least partially spaced 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 that at the at least one REHAU Industries SE & Co. KG Rehau, August 28, 2025

[0194] International reference: 24,078 / 1 dr.lauk

[0195] At least one recess 7, 8 is arranged on the longitudinal edge side L1 , L2 of the edge band element.

[0196] In this embodiment, both the narrow surface 15 of the plate element 1 and the longitudinal edge sides L1, L2 of the edge band element 2 were machined by removing material.

[0197] In this embodiment, the upper recess 7 is angular in shape, approximately orthogonal in cross-section.

[0198] In this embodiment, the lower recess 8 is approximately semicircular in cross-section. However, it is also within the scope of the invention for the recesses 7 and 8 to have other advantageous geometric shapes in cross-section.

[0199] The plate element 1 can be 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 e.

[0200] Advantageously, the plate element 1 is designed such that the 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, via at least one recess 7, 8.

[0201] In this embodiment, the plate element 1 is designed such that a separate profile element 5 or a plastic mass made of material A is arranged / fixed in the recess 8 on the second longitudinal edge side L2 of the edge band element 2 (see Fig. 4).

[0202] The profile element 5 can be designed such that it has been manufactured in a prior, independent process, for example as a so-called keder profile, and is inserted into or fixed in the recess 8. It is further within the scope of the invention that the profile element 5 at least preferably comprises a polymeric material, and that the recess 8 along the edge of the plate element 1 is filled, preferably by means of a melting process. The profile element 5 is then formed by the plastic mass from the polymeric material A. The plate element 1 can also advantageously be designed as follows: REHAU Industries SE & Co. KG Rehau, August 28, 2025

[0203] Int. sign: 24.078 / 1 dr.lauk that the edge banding 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.

[0204] The plate element 1 can further advantageously be designed such that the 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.

[0205] In this embodiment, the plate element 1 can be designed such that the edge band element 2 is arranged at a distance from the top 11 and / or the bottom 12 of the plate element 1 on at least one longitudinal edge side L1, L2.

[0206] It has also proven advantageous for the plate element 1 that a coating 9 can be arranged at least partially on at least one front face of the edge banding element 2 and / or the profile element 5, pointing away from the narrow surface 15 of the plate element 1, as well as on the top surface 11 and / or the bottom surface 12 of the plate element 1. In this embodiment, the plate element 1 is designed such that it has a coating 9 on its top surface 11.

[0207] The coating 9 of the plate element 1 is designed as a film and has a thickness of 100 pm.

[0208] Figures 4 to 5 show the process according to the invention for narrow-area coating of a panel element 1, such as a furniture panel with edge banding elements 2.

[0209] As shown in Fig. 4, initially only one narrow surface 15 of the plate element 1 has been coated, as well as another narrow surface facing rearward in the figure, whereby the correspondingly formed corner with the end faces 2T, 22 has already been filled. As shown in Fig. 4, the narrow surface facing forward and the corner facing forward (see also end faces marked 21', 22) are then additionally coated. REHAU Industries SE & Co. KG Rehau, August 28, 2025

[0210] International reference: 24,078 / 1 dr.lauk

[0211] The method for narrow-surface coating of the panel element 1, in particular a furniture panel, wood-based panel, worktop, particleboard, lightweight panel, interior finishing panel, door, fiber cement panel or the like, wherein the narrow-surface coating is carried out by means of edge banding elements 2, is characterized in that first at least one edge banding element 2 is attached to at least one narrow surface 15, that the panel element 1 and / or the edge banding element 2 is machined at least at one edge of this narrow surface by removing material to form at least one recess 7, 8, wherein in the course of this material removal process at least one longitudinal edge side L1, L2 of the edge banding element 2 attached to this narrow surface is at least partially removed, that afterwards or simultaneously the recess 7, 8 is filled along the edge of the panel element 1 with a preferably polymeric material A,preferably by means of a melting process, so that the design of this edge of the plate element can be carried out independently of the thickness of the edge band element 2.

[0212] The melting process could, for example, involve extrusion.

[0213] It is also within the scope of the invention that after attaching the edge banding element 2 and before filling the recesses 7, 8 and / or the corner recesses with the various materials (A, A') the longitudinal edge sides L1, L2 of the edge banding elements 2 and / or the recesses 7, 8 and / or the corner recesses can be machined, for example by mechanical machining, in particular with a milling cutter, a saw and the like.

[0214] It is further within the scope of the invention that, after attaching the edge band profile 2 and before filling the recesses 7, 8 and / or the corner recesses with the various materials, the longitudinal edge sides L1, L2 of the edge band elements 2 and / or the recesses 7, 8 and / or the corner recesses are processed. REHAU Industries SE & Co. KG Rehau, August 28, 2025

[0215] Int. Ref: 24.078 / 1 dr.lauk can be done, in particular with a milling cutter, a saw and the like, thereby increasing the volume of in particular the recesses 7, 8 and / or the corner recesses.

[0216] In particular, it is within the scope of the invention that the material can be provided in the form of a filament which is melted immediately before application.

[0217] The process is further characterized by the fact that, viewed in the plane of the plate, the edge band elements 2 in the corner areas of the plate element 1 are essentially flush with it, forming corner recesses perpendicular to the plane of the plate in the area of ​​the end faces 21, 21', and the corner recesses are filled with a further material A'.

[0218] This additional material A' may differ from material A, e.g. in its flow behavior.

[0219] It can also be advantageous in the method that the filling with the material takes place in the form of a sloping surface in cross-section or a sloping, outwardly curved arc, as shown in Figs. 3 to 6.

[0220] The process is further characterized by the fact that material A can be used in the form of unrecycled material, in particular new material, which is, for example, polymeric, in particular thermoplastic, elastomeric (e.g. silicone-based) or thermosetting and can consist of several components, as well as being in the form of a filler.

[0221] In particular, the material can also consist of a silicone material.

[0222] Furthermore, material A can consist of several components; if necessary, the material can also be formed as a filler, in particular plastic dispersion filler, component filler, as well as a putty, in particular inorganic putties, organic putties e.g. made of synthetic polymers.

[0223] Advantageously, the material can have a paste-like consistency during processing and then hardens. The material can be plastically deformable during processing and solidifies upon cooling or cross-links upon curing, for example, as a radiation-curing material. REHAU Industries SE & Co. KG Rehau, August 28, 2025

[0224] International reference: 24,078 / 1 dr.lauk

[0225] After filling the recesses 7, 8 and / or the vertical corner recesses with the various materials A, A', these surfaces can be reworked, for example mechanically, in particular with a scraper, a milling cutter and the like.

[0226] The panel element 1, furniture panel and the like, with a thickness D, comprising at least one edge banding element 2, which at least partially comprises a polymeric material, both having a defined width B3 of preferably 3 to 120 mm, preferably 15 to 100 mm, is characterized in that the edge banding element 2 can be arranged at least partially spaced 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 that at least one separate profile element 5 or a plastic compound made of material A is arranged on the at least one longitudinal edge side L1, L2 of the edge banding element 2.

[0227] The plate element 1 can be 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 e.

[0228] In this embodiment, the separate profile element 5 or the plastic mass made of material A is arranged on the second longitudinal edge side L2 and the separate profile element 5 or the plastic mass made of material A is arranged on the first longitudinal edge side L1 of the edge band element 2.

[0229] The separate profile element 5 or the plastic mass made of material A was bonded to the respective longitudinal edge side L1, L2 of the edge band element 2 and the narrow surface 15 of the plate element 1 after the edge band element 2 was fixed to the narrow surface 15 of the plate element 1.

[0230] In this embodiment, the separate profile element 5 or the plastic mass made of material A is designed such that it is arranged / fixed flush with the top surface 11 or the bottom surface 12 of the plate element 1.

[0231] Furthermore, the separate profile element 5 or the plastic compound made of material A is designed such that it is flush with the front surface of the edge banding element 2, projecting away from the narrow surface 15 of the panel element 1. REHAU Industries SE & Co. KG Rehau, August 28, 2025

[0232] International reference: 24,078 / 1 dr.lauk

[0233] The method for producing such a plate element 1 with a plate core 10 having at least one narrow surface 15 and a thickness D, and preferably at least one coating 9 arranged on the top surface 11 and / or the bottom surface 12, is characterized by the following steps:

[0234] • arranging the edge banding element (2) on at least one narrow surface 15 of the plate core 10,

[0235] • fixing the edge banding element 2 to at least one narrow surface 15 of the plate core 10,

[0236] • Material removal machining of the plate element 1 and / or the longitudinal edge sides L1, L2 of the edge band element 2, such that the edge band element 2 is arranged at least partially spaced away from a top surface 11 and / or a bottom surface 12 of the plate element 1,

[0237] • that at least one separate profile element 5 or a plastic mass made of material A is arranged on at least one longitudinal edge side L1 , L2 of the edge banding element 2.

[0238] The method for manufacturing such a plate element 1 is further characterized in that the edge band element 2 is arranged at least partially spaced away 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, via at least one recess 7, 8.

[0239] It is also within the scope of the invention that after attaching the edge banding element 2 and before filling the recesses 7, 8 and / or the corner recesses with the various materials A, A', the longitudinal edge sides L1, L2 of the edge banding elements 2 and / or the recesses 7, 8 and / or the corner recesses are processed, for example by mechanical processing, in particular with a milling cutter, a saw and the like.

[0240] It is further within the scope of the invention that, after the edge banding profile 2 has been attached and before the recesses 7, 8 and / or the corner recesses have been filled with the various materials, the longitudinal edge sides L1, L2 of the edge banding elements 2 and / or the recesses 7, 8 and / or the corner recesses are machined, in particular with a milling cutter, a saw and the like, thereby increasing the volume, in particular of the recesses 7, 8 and / or the corner recesses. REHAU Industries SE & Co. KG Rehau, August 28, 2025

[0241] International reference: 24,078 / 1 dr.lauk

[0242] Furthermore, the method for manufacturing such a plate element 1 is characterized by the fact that the at least one profile element 5, 5' or the plastic mass made of material A is arranged in at least one recess 7, 8.

[0243] It is also advantageous in the method for producing such a plate element 1 that the at least one profile element 5 or the plastic mass made of material A is fixed in at least one recess 7, 8.

[0244] The profile element 5 can be designed in such a way that it has been manufactured in a prior, independent process, for example as a so-called keder profile, and is inserted into the recess 7, 8 or fixed in the recess 7, 8.

[0245] It is further within the scope of the invention that the profile element 5 at least preferably comprises a polymeric material and fills the recess 7, 8 along the edge of the plate element 1, preferably by means of a melting process. The profile element 5 is then formed by the plastic mass made of material A.

[0246] Furthermore, the method for manufacturing such a plate element 1 can be characterized by the fact that the edge band element 2 has a width B2 on at least one longitudinal edge side L1 , L2 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.

[0247] In this embodiment, the separate profile element 5 can be produced in an extrusion process known per se and fixed in recess 8 on the narrow surface 15 of the plate element 1 in a materially bonded manner, for example by adhesive.

[0248] The separate profile element 5 can be manufactured such that it has the same cross-section as the recess 8 on the narrow surface 15 of the plate element 1. In this embodiment, the separate profile element 5 can be inserted directly into the recess 7 on the narrow surface 15 of the plate element 1 online using, for example, an extrusion nozzle, 3D printing nozzle, or the like, and thus fixed in a material-bonded manner.

[0249] After manufacture / application, the cross-section of the separate profile element 5 or the plastic mass made of material A can be modified by machining operations. REHAU Industries SE & Co. KG Rehau, August 28, 2025

[0250] Int. sign: 24.078 / 1 dr.lauk is adapted so that the separate profile element 5 is flush with the top surface 11 of the panel element 1, which is coated with the coating 9, and is also flush with the edge band element 2 pointing away from the narrow surface 15 of the panel element 1.

[0251] In this embodiment, the plate element 1 can be designed such that it has a coating at least partially on its upper surface 11 and its lower surface 12, as well as on the front of the edge band element 2 and of the at least one profile element 5, 5' or the plastic mass made of material A.

[0252] Furthermore, the plate element 1 can be designed such that the coating 9 on the top 11 and on the bottom 12 of the plate core 10 is designed as, for example, a foil and the like.

[0253] The coating on the front surface of the edge banding element 2 and of the at least one profile element 5 can be designed as a paint coating or as a printed layer. The coating can have a thickness of 1 to 350 µm, preferably 2 to 300 µm, and particularly preferably 5 to 250 µm.

[0254] In this embodiment, the coating thickness can be 25 pm.

[0255] The plate element 1 can be further designed such that the ratio of the width B10 of the plate core 10 to the width B3, B4 of the edge band element 2 is at least 1 ,1; preferably at least 1,2; particularly preferably at least 1 ,3.

[0256] Figure 5 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 profile element 5, 5' or a plastic compound made of material A.

[0257] The panel element 1, such as a furniture panel and the like, with a thickness D, comprising at least one edge banding element 2, which at least partially comprises a polymeric material and has a width B2 preferably of 10 to 120 mm, preferably 15 to 100 mm, is characterized in that the edge banding element 2 is arranged at least partially spaced from a top surface 11 and / or a bottom surface 12 of the panel element 1 on at least one longitudinal edge surface L1, L2, and / or on at least one end surface. REHAU Industries SE & Co. KG Rehau, August 28, 2025

[0258] International reference: 24,078 / 1 dr.lauk

[0259] S1 , S2 of the at least one edge band element 2 at least one separate profile element 5, 5' or a plastic mass made of material A is arranged.

[0260] The plate element 1 can also be 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 building element 1 via at least one recess 7, 8 on at least one longitudinal edge side L1, L2 and / or on at least one end edge side S1, S2.

[0261] Furthermore, the plate element 1 can be designed such that at least one separate profile element 5, 5' or the plastic mass made of material A is arranged in at least one recess 7, 8.

[0262] It can also be advantageous for the plate element 1 that the at least one separate profile element 5, 5' or the plastic mass made of material A is fixed in at least one recess 7, 8.

[0263] In this embodiment, the separate profile element 5 or the plastic mass made of material A can be arranged on the second longitudinal edge side L2 and the separate profile element 5' or the plastic mass made of material A can be arranged on the first longitudinal edge side L1 of the edge band element 2.

[0264] The plate element 1 can be 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 e.

[0265] The separate profile element 5, 5' or the plastic mass made of material A was bonded to the respective longitudinal edge side L1, L2 of the edge band element 2 and the narrow surface 15 of the plate element 1 after the edge band element 2 was fixed to the narrow surface 15 of the plate element 1.

[0266] In this embodiment, the separate profile element 5, 5' or the plastic mass made of material A is designed such that it is arranged / fixed flush with the top surface 11 or the bottom surface 12 of the plate element 1.

[0267] Furthermore, the separate profile element 5, 5' or the plastic compound made of material A is designed such that it is flush with the front surface of the edge banding element 2, projecting away from the narrow surface 15 of the panel element 1. REHAU Industries SE & Co. KG Rehau, August 28, 2025

[0268] International reference: 24,078 / 1 dr.lauk

[0269] 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.

[0270] The edge band element 2' is fixed to a narrow surface 15 of the component 1 and in this embodiment is arranged such that a first end face 21 of the further edge band 2' is spaced apart from the second end face 22 of the edge band element 2.

[0271] A recess 7, 8 is created between the second end face 22 of the edge band 2 and the first end face 21 ' of the further edge band element 2'.

[0272] In this embodiment, the plate element 1 is designed such that the recess 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'. Furthermore, in this embodiment, a separate profile element 5' or a plastic compound made of material A is arranged in the recess 7.

[0273] In this embodiment, the separate profile element 5' or the plastic mass made of material A is arranged such that it is flush with the second end face 22 of the edge band element 2 and the first end face 21 ' of the further edge band element 2' over its entire length.

[0274] • The method for narrow-surface coating of a panel element 1, in particular a furniture panel, wood-based panel, worktop, chipboard, lightweight panel, interior panel, doors, fiber cement panel or the like, wherein the narrow-surface coating is carried out by means of edge banding elements 2, is characterized by the fact that

[0275] • that at least one edge banding element 2 is initially attached to at least one narrow surface 15,

[0276] • that the plate element 1 and / or the edge band element 2 is machined by removing material at least on one edge of this narrow surface, forming at least one recess 7, 8, REHAU Industries SE & Co. KG Rehau, August 28, 2025

[0277] International reference: 24,078 / 1 dr.lauk

[0278] • wherein, in the course of this material removal process, at least one longitudinal edge side L1, L2 of the edge band element 2 attached to this narrow surface is at least partially removed,

[0279] • that afterwards or simultaneously the recess 7, 8 along the edge of the plate element 1 is filled with a preferably polymeric material A, preferably by means of a melting process,

[0280] • so that the design of this edge of the plate element can be carried out independently of the thickness of the edge banding element 2.

[0281] The method is further characterized by the fact that, viewed in the plane of the plate, the edge band elements 2 can essentially be flush with the corner areas of the plate element 1, forming corner recesses perpendicular to the plane of the plate, and the corner recesses can also be filled with material A, A'.

[0282] It is further within the scope of the invention that after attaching the edge banding element 2 and before filling the recesses 7, 8 and / or the corner recesses with the various materials, the longitudinal edge sides L1, L2 of the edge banding elements 2 and / or the recesses 7, 8 and / or the corner recesses can be machined, in particular with a milling cutter, a scraper and the like, whereby the volume of the recesses 7, 8 and / or the corner recesses is increased.

[0283] Furthermore, the method can be characterized such that the edge banding element 2 is also covered with material on the edge side of the side that is flush with the plate element 1, so that the surface edge of the plate element 1 is also formed only by material in this area.

[0284] It can also be advantageous in the process that the filling with material A is carried out by forming a slope that fills in cross-section or a filling, outwardly curved arc or a protective or design edge projecting over the upper or lower plane of the panel element.

[0285] After filling the recesses 7, 8 and / or the vertical corner recesses with the various materials A, A', these surfaces can be post-processed, for example, mechanically, in particular with a scraper, a milling cutter, and the like. REHAU Industries SE & Co. KG Rehau, August 28, 2025

[0286] International reference: 24,078 / 1 dr.lauk

[0287] The method for producing a narrow-surface coating of a plate element 1, with a plate core 10 having at least one narrow surface 15 and a thickness D10, and preferably at least one coating 9 arranged on the top surface 11 and / or on the bottom surface 12, comprises the following steps:

[0288] • arranging the edge banding element 2 on at least one narrow surface 15 of the plate core 10,

[0289] • fixing the edge banding element 2 to at least one narrow surface 15 of the plate core 10,

[0290] • Material removal machining of the plate element 1 and / or the longitudinal edge sides L1 , L2 of the edge band element 2, such that the edge band element 2 is arranged at least partially spaced away from a top surface 11 and / or a bottom surface 12 of the plate element 1,

[0291] • that at least one separate profile element 5, 5' or a plastic compound made of a material A is arranged on at least one longitudinal edge side L1, L2 of the edge banding element 2.

[0292] The method is further characterized such that the edge band element 2 can be 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 longitudinal edge side L1, L2, via at least one recess 7, 8.

[0293] It is also within the scope of the invention that after attaching the edge banding element 2 and before filling the recesses 7, 8 and / or the corner recesses with the various materials, the longitudinal edge sides L1, L2 of the edge banding element 2 and / or the recesses 7, 8 and / or the corner recesses can be machined, for example by mechanical machining, in particular with a milling cutter, a scraper and the like.

[0294] It is further within the scope of the invention that, after attaching the edge banding element 2 and before filling the recesses 7, 8 and / or the corner recesses with the various materials, the longitudinal edge sides L1, L2 of the edge banding elements 2 and / or the recesses 7, 8 and / or the corner recesses can be machined, in particular with a milling cutter, a scraper and the like, wherein REHAU Industries SE & Co. KG Rehau, August 28, 2025

[0295] Int. sign: 24.078 / 1 dr.lauk thereby increasing the volume, in particular of the recesses 7, 8 and / or the corner recesses.

[0296] Furthermore, the method can be designed such that the at least one profile element 5, 5' or the plastic mass made of material A is arranged in at least one recess 7, 8.

[0297] The method can be further designed such that at least one profile element 5, 5' or the plastic mass made of material A is fixed in at least one recess 7, 8.

[0298] The profile element 5, 5' can be designed in such a way that it has been manufactured in a prior, independent process, for example as a so-called keder profile, and is inserted into the recess 7, 8 or fixed in the recess 7, 8.

[0299] It is further within the scope of the invention that the profile element 5, 5' comprises a polymeric material and fills the recess 7, 8 along the edge of the plate element 1, preferably by means of a melting process. The profile element 5, 5' is then formed from the plastic mass of material A.

[0300] Figures 6a to 6f describe a method for coating the narrow surface of a plate element 1. The method is characterized by the following steps:

[0301] Method for narrow-surface coating of a panel element 1, in particular a furniture panel, wood-based panel, worktop, particleboard, lightweight panel, interior finishing panel, door, fiber cement panel or the like, wherein the narrow-surface coating is carried out by means of edge banding elements 2, wherein at least one edge banding element 2 is first attached to at least one narrow surface 15 (see Fig. 6a), wherein the panel element 1 and / or the edge banding element 2 is attached at least at one edge of this narrow surface, forming at least one recess.

[0302] 7, 8 Material is removed during machining (see Fig. 6b), REHAU Industries SE & Co. KG Rehau, August 28, 2025

[0303] Int. Mark: 24.078 / 1 dr.lauk wherein preferably in the course of this material removal process at least one longitudinal edge side L1 , L2 of the edge band element 2 attached to this narrow surface is at least partially removed (see Fig. 6b), that afterwards or simultaneously the recess 7, 8 along the edge of the plate element 1 (see Fig. 6c) is filled with a preferably polymeric material A, preferably by means of a melting process (see Fig. 6d, Fig. 6e and Fig. 6f), so that a design of this edge of the plate element can be carried out independently of the thickness of the edge band element 2.

[0304] According to one embodiment of the method according to the invention, the edge banding element 2 has at least a partially smaller width B3, B4 than the thickness D of the plate element 1. As a result, the plate element 1 overhangs on both sides, and the resulting recesses 7, 8 are filled with material A on both sides of the plate element 1 (variant 1 - see also Fig. 2, there width B2). This case is illustrated in Fig. 6a with the solid lines. The lower recess 8 has already been formed and enlarged by machining the plate element 1 and the edge banding element 2, at least at one edge of the narrow surface 15.

[0305] In another embodiment of the invention, the edge banding element 2 has at least a partially smaller width B3, B4 than the thickness D of the plate element 1. In this embodiment, the edge banding element 2 is flush or at least substantially flush with the plate element 1 on one side, so that the filling with material A only takes place on the other side of the plate element 1 (variant 2, not shown in detail here, in which only one of the longitudinal edge sides L1, L2 of the edge banding element 2 and / or the plate element is machined by material removal).

[0306] In a further embodiment of the invention, the edge banding element 2 has a greater width B2 than the thickness D of the plate element 1, such that the longitudinal edge sides L1, L2 or one of the longitudinal edge sides L1, L2 of the edge banding element 2 project beyond the plate element 1. This case is illustrated in Fig. 6a with the solid and dashed lines (variant 3). REHAU Industries SE & Co. KG Rehau, August 28, 2025

[0307] International reference: 24,078 / 1 dr.lauk

[0308] Recess 8 has already been formed by material removal from the plate element 1 and the edge banding element 2, at least on this edge of the narrow surface 15. Alternatively, the edge banding element 2 is flush with the plate element 1 (which may have already been machined with material removal) on this side.

[0309] Figure 6b shows the following step "whereby the plate element 1 and / or the edge band element 2 is machined by removing material at least at one edge of this narrow surface, forming at least one recess 7, 8". This step is essentially the same for the variants 1 to 3 described above. In Figure 6b, the recess 7 is being formed or enlarged.

[0310] In Fig. 6c, both recesses 7 and 8 are visible. It can be seen that, according to the invention, the design of the edge of the plate element is independent of the thickness of the edge banding element 2. Thus, significantly larger recesses 7 and 8 can be filled with material A compared to the thickness of the edge banding element 2.

[0311] Figures 6d, 6e, and 6f illustrate the step of filling the recess 7, 8 along the edge of the plate element 1 with a preferably polymeric material A, preferably by means of a melting process. In Figure 6e, the filling with material A forms a slope that fills the recess in cross-section. In Figure 6d, it forms a curved arc that fills the recess.

[0312] Figure 6f illustrates a further advantage of the invention, namely that the filling with material A can be designed in such a way that it even extends beyond the upper or lower plane of the plate element 1 and forms a protective or design edge. This protective or design edge can, for example, be provided to prevent liquids spilled on the plate element 1 from running over its edge and to keep them on the plate element 1 until they are removed.

[0313] - Patent claims -

Claims

REHAU Industries SE & Co. KG Rehau, August 28, 2025 International reference: 24,078 / 1 dr.lauk Patent claims 1. Method for narrow-surface coating of a panel element (1), in particular a furniture panel, wood-based panel, worktop, particleboard, lightweight panel, interior finishing panel, door, fiber cement panel or the like, wherein the narrow-surface coating is carried out by means of edge banding elements (2), characterized in that first at least one edge banding element (2) is attached to at least one narrow surface (15), that the panel element (1) and / or the edge banding element (2) is machined at least at one edge of this narrow surface by removing material to form at least one recess (7, 8), wherein in the course of this material removal process at least one longitudinal edge side (L1, L2) of the edge banding element (2) attached to this narrow surface is at least partially removed, that afterwards or simultaneously the recess (7, 8) along the edge of the panel element (1) is filled with a preferably polymeric material (A),preferably by means of a melting process, so that the design of this edge of the plate element can be carried out independently of the thickness of the edge band element (2).

2. Method according to claim 1, characterized in that the plate element (1) protrudes on both sides and the respective resulting recesses (7, 8) are filled accordingly on both sides of the plate element (1) with the material (A).

3. Method according to claim 1, characterized in that the edge band profile (2) is flush or at least substantially flush with the REHAU Industries SE & Co. KG Rehau, August 28, 2025 International reference: 24,078 / 1 dr.lauk plate element (1) is closed, so that the filling with the material (A) only takes place on the other side of the plate element (1).

4. Method according to one of the preceding claims, characterized in that, viewed in the plane of the plate, at least two edge band elements (2) in the corner areas of the plate element (1) terminate substantially flush with it, forming corner recesses perpendicular to the plane of the plate, and the corner recesses are filled with a material (A').

5. Method according to one of the preceding claims, characterized in that the filling with material (A, A') is carried out in the form of a sloping surface filling in cross-section or a sloping, outwardly curved arc or a protective or design edge projecting beyond the lower plane or above the upper plane of the panel element (1).

6. Method according to one of the preceding claims, characterized in that a material (A, A') is used which is, for example, polymeric, in particular thermoplastic, elastomeric (e.g. silicone-based) or thermosetting and can consist of several components, and can also be, for example, designed as a filler, putty and the like.

7. Method according to one of the preceding claims, characterized in that the material (A, A') has a pasty consistency during its processing and then hardens or solidifies.

8. Method according to one of the preceding claims, characterized in that the material (A, A') is plastically deformable during its processing and expediently cross-links during its hardening or solidifies during its cooling.

9. Plate element (1) manufactured by a method according to one of claims 1 to 9, comprising at least one edge banding element (2) which at least partially comprises a polymeric material, which preferably has a width B2 of 3 mm to 150 mm, more preferably 10 to 120 mm, more preferably 15 to 105 mm, characterized in that the edge banding element (2) is arranged at least partially spaced apart from a top (11) and / or a bottom (12) of the plate element (1) on at least one longitudinal edge side (L1, L2) and that at least REHAU Industries SE & Co. KG Rehau, August 28, 2025 Int. sign: 24.078 / 1 dr.lauk a separate profile element (5, 5') or a plastic mass made of material (A) is arranged.

10. Plate element (1) according to claim 10, characterized in that the edge band element (2) is arranged at least partially spaced apart from a top (11) and / or a bottom (12) of the plate element (1) on at least one longitudinal edge side (L1 , L2) via at least one recess (7, 8).

11. Plate element (1) according to one of the preceding claims, characterized in that the at least one profile element (5, 5') or the plastic mass made of the material (A) is arranged in at least one recess (7, 8).

12. Plate element (1) according to one of the preceding claims, characterized in that the material of the edge band element (2) and / or the profile element (5, 5') and / or the material (A) comprises renewable raw materials of 0.01 to 100%, preferably 20 to 100%, particularly preferably 40 to 100%, preferably verified according to mass balance e.g. via ISCC.

13. Plate element (1) according to one of the preceding claims, characterized in that the material of the edge banding element (2) has a density of 0.2 g / cm³ 3 up to 0.85 g / cm³ 3 , preferably 0.40 g / cm² 3 up to 0.70 g / cm³ 3 according to DIN EN ISO 1183-1 : 2019-09.

14. Plate element (1) according to one of the preceding claims, characterized in that the material of the edge band element (2) comprises 5 to 100 wt.%, preferably 10 to 100 wt.%, particularly preferably 15 to 100 wt.%, based on the total weight, recycled material.

15. Method for manufacturing a plate element (1) according to one of claims 10 to 15, comprising a plate core (10) with at least one narrow surface (15) and a thickness D10, and preferably at least one coating (9) arranged on the top (11) and / or on the bottom (12), comprising the steps of: arranging the edge banding element (2) on at least one narrow surface (15) of the plate core (10), REHAU Industries SE & Co. KG Rehau, August 28, 2025 International reference: 24,078 / 1 dr.lauk ■ fixing the edge band element (2) to at least one narrow surface (15) of the plate core (10), ■ Material removal machining of the plate element (1) and / or the longitudinal edge sides (L1, L2) of the edge band element (2), such that the edge band element (2) is arranged at least partially spaced away from a top (11) and / or a bottom (12) of the plate element (1), ■ that at least one separate profile element (5, 5') or a plastic compound made of a material (A) is arranged on at least one longitudinal edge side (L1, L2) of the edge band element (2).

16. Method according to claim 16, characterized in that the edge banding element (2) is arranged at least on at least one longitudinal edge side (L1 , L2), via at least one recess (7, 8), at least partially spaced from a top (11) and / or a bottom (12) of the plate element (1).

17. Method according to claim 16 or 17, characterized in that the at least one profile element (5, 5') or the plastic mass made of the material (A) is arranged in at least one recess (7, 8).

18. Method according to one of claims 16 to 18, characterized in that the at least one profile element (5, 5') or the plastic mass made of the material (A) is fixed in at least one recess (7, 8).

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