Composite profile and this comprehensive window or door frame

Abstract

Composite profile (100) for producing frames for windows or doors, comprising (a) an inner profile (10); and (b) a weather-side outer wall reinforcement (30) fastened to the outside of the weather-side outer wall (11) of the inner profile (10), characterized in that the weather-side outer wall reinforcement (30) is designed as a reinforcing profile made of a plastic matrix and reinforcing fibers embedded in the plastic matrix.

Description

The invention relates to a composite profile for manufacturing frames for windows or doors, comprising an inner profile and a weather-side outer wall reinforcement fixed to the outer side of the weather-side outer wall of the inner profile. Moreover, the present invention relates to a window or door frame formed from portions of such a composite profile.For window and door profiles for enclosing glass panes, the aim is to achieve the best possible thermal insulation of the window obtained therefrom or of the door obtained therefrom. In order to ensure the mechanical stability required for such windows or doors, it is necessary for corresponding window or door profiles made of unreinforced, thermoplastic material, for example polyvinyl chloride (PVC), to introduce a usually metallic reinforcing profile into at least one of the hollow chambers of the window or door hollow chamber profile, which improves the mechanical stability at the expense of the significantly impaired thermal insulation properties. To increase the stability with good thermal insulation properties, a profile strip is known, for example, from DE 82 82 221 U1 which comprises a core profile made of polyvinyl chloride and containing short glass fibers having a length of up to 12 mm in an amount of up to 50% by weight, and a PVC sheathing profile with high impact strength surrounding the latter. It is seen disadvantageous in the profiled strip described in DE 82 82 221 U1 that the modules that can be achieved in this way are not sufficient for a completely steel-free construction of window and door elements in all sizes and for further requirements on hollow window and door profile chamber profiles with respect to wind load, weight load and thermal load. Furthermore, EP 4 174 272 A1 discloses a composite profile for producing frames for windows or doors, which composite profile comprises a hollow plastics profile with a plurality of hollow chambers and an outer wall reinforcement made of metal fastened to the outer wall of the hollow plastics profile on the weather side, wherein at least one inner reinforcement made of a reinforced plastics material is fastened in a materially bonded manner to the inner side of the outer wall on the space side facing the profile interior. However, metals as materials for the outer wall reinforcement have high thermal conductivities, which is suitable only to a limited extent for an energy-efficient design. In addition, the outer wall reinforcement for recycling the composite profile described in EP 4 174 272 A1 must first be separated from the hollow plastics profile.At this point, the present invention uses the object of providing a composite profile for producing frames for windows or doors, which composite profile at least partially overcomes the disadvantages of the prior art. In particular, the composite profile according to the invention should have high mechanical stability. In addition, the composite profile according to the invention should have good thermal insulation properties. Finally, the present invention also lies in the provision of a window or door frame which is formed from sections of a composite profile according to the invention.These and other objects are achieved according to the invention by a composite profile for producing frames for windows or doors having the features of claim 1 or by a window or door frame having the features of claim 12. Preferred embodiments of the composite profile according to the invention and of the window or door frame according to the invention are described in each case in the dependent claims.According to the present invention, it has been recognized that with a weather-side outer wall reinforcement made of a plastic material and reinforcement fibers contained therein, composite profiles for producing frames for windows or doors can be obtained which meet the requirements for window and door profiles with respect to wind load, weight load and thermal load. Finally, a composite profile with such a weather-side outer wall reinforcement can also be easily recycled, because the outer wall reinforcement does not have to be separated before recycling.Accordingly, the present invention is directed to providing a composite profile for the manufacture of frames for windows or doors, comprising (a) an inner profile and (b) a weather-side outer wall reinforcement attached to the outer side of the weather-side outer wall of the inner profile, wherein the composite profile is characterized according to the invention in that the weather-side outer wall reinforcement is formed as a reinforcement profile from a plastic matrix and reinforcement fibers embedded in the plastic matrix. Moreover, the present invention provides a window or door frame formed from portions of a composite profile according to the invention.As used herein, the term "plastic material" means a plastic to which the additives, such as stabilizers, plasticizers, pigments and the like, that are customary for (co)extrusion or pultrusion of window or door profile hollow chamber profiles have been added. Accordingly, the term "polyamide material" as used herein means a polyamide to which the additives, such as stabilizers, plasticizers, pigments and the like, which are customary for (co)extrusion or pultrusion of window or door profile hollow chamber profiles have been added. The same applies correspondingly also to polyolefins, polyvinyl chloride (PVC), poly(meth)acrylates, polyesters and the like. In addition, the term "weather-side outer wall" as used herein describes that wall of the composite profile according to the invention which points to the outside of the building when the window or door frame according to the invention is used as intended. Accordingly, the term "room-side outer wall" (the side opposite the weather side) as used herein describes that wall of the composite profile according to the invention which, when the window or door frame according to the invention is used as intended, points to the room side of the window or door which comprises the window or door profile hollow chamber profile according to the invention. Similarly, the "weather side outer wall reinforcement" is disposed on the weather side outer wall, while the "room side outer wall reinforcement" is disposed on the room side outer wall of the inner panel.With regard to the composite profile according to the invention, it is helpful if the inner profile is designed as a hollow plastics profile with a plurality of hollow chambers, as an aluminium profile, a thermally separated aluminium profile or as a wood profile. A plastic hollow profile with a plurality of hollow chambers is particularly preferred. In the case of a hollow plastics profile with a plurality of hollow chambers, the reinforcing effect of the weather-side outer wall reinforcement has a particularly pronounced effect. In addition, such a composite profile according to the invention can be recycled particularly easily. In this case, a polyvinyl chloride material, in particular a fiber-reinforced polyvinyl chloride material, is preferably used for the inner profile. In the case of a wood profile, the use of a weather-side outer wall reinforcement makes it possible to protect the side of the wood profile which is exposed to weathering from effects of weathering.It can also be advantageous if the composite profile further comprises a room-side outer wall reinforcement fastened to the outer side of the room-side outer wall of the inner profile. An additional space-side outer wall reinforcement further increases the mechanical stability of the composite profile according to the invention.In preferred embodiments of the composite profile according to the invention, the plastic matrix of the weather-side outer wall reinforcement and / or of the room-side outer wall reinforcement is formed from a polyamide material, a polyvinyl chloride material, a poly(meth)acrylate material, a polyester material or a copolymer or blend of the materials mentioned. Expediently, the plastic matrix of the weather-side outer wall reinforcement and / or of the room-side outer wall reinforcement is designed as a polyacrylate matrix, in particular a PMMA matrix. In this case, the weather-side outer wall reinforcement and / or the room-side outer wall reinforcement is preferably produced by reactive pultrusion of the corresponding monomers and / or reactive oligomers for the production of polyacrylate, e.g. polymethyl methacrylate (PMMA). However, this does not exclude the production of other materials by means of reactive pultrusion, for example of polyesters, for example polyethylene terephthalate (PET), in particular impact-resistant polyethylene terephthalate (PET-G), or polybutylene terephthalate (PBT), or thermoplastic polyurethanes (TPU). The production of polyamide, for example PA6 or PA12, or bisphenol A (BPA), polycarbonate (PC), polyesteramides or polyimides, preferably by means of reactive pultrusion, is likewise within the scope of the invention here. If the plastic matrix of the weather-side outer wall reinforcement and / or of the room-side outer wall reinforcement comprises a polyamide, the polyamide is preferably selected from the group comprising polyamide-6 (PA 6), polyamide-6.6 (PA 6.6), polyamide-6.10 (PA 6.10), polyamide-4.6 (PA 4.6), polyamide-12 (PA 12) and copolyamides and blends of the aforementioned polyamides. Polyamide-6 is particularly preferred because of its good availability. With regard to reactive pultrusion and the production of window and door profile hollow chamber profiles by means of reactive pultrusion, reference is made to WO 2018 / 072828, 766 A1, which is hereby explicitly referred to in this respect.It can also be favorable if the weather-side outer wall reinforcement and / or the room-side outer wall reinforcement is / are connected, in particular bonded or welded, to the inner profile in a materially integral manner. If the inner profile of the composite profile according to the invention is a hollow plastics profile with a plurality of hollow chambers, the removal of the weather-side outer wall and / or of the room-side outer wall is no longer necessary during recycling of the window formed from the composite profile according to the invention. All materials of the composite profile according to the invention are thermoplastic and can thus be fed together to the recycling process.Alternatively or additionally, it can also prove to be favorable if the weather-side outer wall reinforcement and / or the room-side outer wall reinforcement comprises at least one latching element which is in engagement with a fastening groove of the inner profile. In this way, the outer wall reinforcements can be connected to the inner profile in a simple and stable manner. It is preferred here if the weather-side outer wall reinforcement and the room-side outer wall reinforcement each comprise a latching element which is in engagement with a corresponding fastening groove of the inner profile. At the same time, the inner profile can also have at least one corresponding latching element which is then in engagement with a corresponding fastening groove of the respective outer wall reinforcement. In all cases, the weather-side outer wall reinforcement and / or the room-side outer wall reinforcement can / can additionally be connected to the inner profile in a materially integral manner, in particular by welding or by adhesive bonding, preferably by adhesive bonding.It can also be advantageous if the weather-side outer wall reinforcement and / or the room-side outer wall reinforcement comprises / comprise a core profile made of a plastic material and a casing profile, which at least partially surrounds the core profile and is made of a thermoplastic plastic material compatible with the plastic material of the core profile. It is particularly preferred here if the weather-side outer wall of the weather-side outer wall reinforcement and / or the space-side outer wall of the space-side outer wall reinforcement are formed by the shell profile at least on the surface thereof facing away from the core profile. As a result, the viewing surfaces of the structural elements formed from the composite profile according to the invention, i.e. corresponding windows or doors, are formed from the shell profile, as a result of which the core profile, which is rough on the surface under certain circumstances, is covered towards the outside by the shell profile by the contained fibers. It is particularly preferred here if the weather-side outer wall of the weather-side outer wall reinforcement and / or the space-side outer wall of the space-side outer wall reinforcement are formed by a layer of the casing profile which is preferably 0.3 mm to 1.5 mm thick. The remaining wall thickness of the weather-side outer wall and / or the room-side outer wall can be formed by the core profile. As a result, smooth viewing surfaces of the structural elements formed from the window profile or door profile hollow chamber profile according to the invention are maintained with very high stability of the frame formed. The cover layer formed by the shell profile preferably has a thickness in the range from about 0.4 mm to about 1.2 mm, in particular about 0.5 mm to about 0.9 mm, particularly preferably about 0.6 mm. The sheathing profile preferably does not comprise any reinforcing fibers.It can also be useful here if the plastic material of the core profile is a polyamide material and the thermoplastic material of the shell profile compatible with the plastic material of the core profile is a blend of a polyamide material and an acrylonitrile-styrene-acrylate terpolymer (ASA). The polyamide of the core profile is particularly preferably selected from the group comprising polyamide-6 (PA 6), polyamide-6.6 (PA 6.6), polyamide-6.10 (PA 6.10), polyamide-4.6 (PA 4.6), polyamide-12 (PA 12) and blends of the aforementioned polyamides. Polyamide-6 is particularly preferred because of its good availability. The thermoplastic material of the shell profile compatible with plastic material of the core profile is likewise preferably selected from the group comprising polyamide 6 (PA 6), polyamide 6.6 (PA 6.6), polyamide 6.10 (PA 6.10), polyamide 4.6 (PA 4.6), polyamide 12 (PA 12) and blends of the aforementioned polyamides with one another and with other polymers or copolymers, in particular acrylonitrile-butadiene-styrene terpolymers (ABS) and acrylonitrile-acrylate-styrene terpolymers (ASA), blends of the polyamides with an acrylonitrile-acrylate-styrene terpolymer (ASA) being preferred on account of the good weathering resistance thereof. Preferably, the polyamide of the core profile is also used as the thermoplastic plastic material of the shell profile. In particularly preferred embodiments of the hollow window or door profile chamber profile according to the invention, polyamide 6 is used as the polyamide of the core profile and a blend of polyamide-6 and an acrylonitrile-acrylate-styrene terpolymer is used as the thermoplastic plastics material of the casing profile.It can also be helpful if the weather-side outer wall reinforcement and / or the room-side outer wall reinforcement comprises / comprise a core profile made of a plastic material and a shell profile at least partially enclosing the core profile, wherein the shell profile is designed as a powder coating. A corresponding powder coating ensures good weathering resistance of the composite profile of the invention. A particularly well adhering powder coating is obtained if the core profile is designed to be electrically conductive or statically conductive at least on its surface. It has proven sufficient if the surface resistance of the core profile according to DIN EN 62631-3-2:2016-10 is at most 10 8 Ω, preferably at most 10 6 Ω. This can preferably be achieved by the plastic material of the core profile or an outer layer of the core profile containing electrically conductive particles in a proportion of from 10% by weight to 60% by weight, based on the weight of the core profile, as 100% by weight. Electrically conductive particles may be metallic (copper, aluminum, and the like) or organic (graphite, carbon black, graphene, and the like). Alternatively to pigment fillers, electrically conductive fibers can be used (for example carbon fibers or metal wires and the like).The reinforcing fibers are expediently designed as glass fibers and / or carbon fibers and / or aramid fibers and / or basalt fibers, although other fiber materials are not excluded. According to the invention, however, the use of glass fibers as reinforcing fibers contained in the plastic matrix is preferred. In the context of the invention, it is preferred to use short glass fibers having a fiber length in the range from 0.1 mm to 5 mm, long glass fibers having a fiber length in the range from 5 mm to 50 mm and / or continuous glass fibers having a length of more than 50 mm individually or in combination. While the weather-side outer wall reinforcement and / or the room-side outer wall reinforcement is / are preferably produced by extrusion or coextrusion when short and long glass fibers are used, the production of the weather-side outer wall reinforcement and / or the room-side outer wall reinforcement by means of reactive pultrusion is most suitable when continuous glass fibers are used. When short glass fibers are used, it may also be advantageous if the mean fiber length of the reinforcing fibers is in the range from 1.5 mm to 3.2 mm. An average length of the glass fibers in this region leads to a high mechanical stability of a composite profile according to the invention both in the longitudinal direction and perpendicular thereto. In this connection, an average fiber length in a range from 2.5 mm to 3.0 has proven to be particularly suitable. According to the invention, the use of continuous glass fibers is particularly preferred. Using continuous glass fibers, the highest stiffness and strength values are achieved with a modulus of elasticity according to DIN EN ISO 527-4:2022-03 of up to 70 000 N / mm 2 in the longitudinal direction of the profile.It may be preferred if the reinforcing fibers are contained in the weather-side outer wall reinforcement and / or the room-side outer wall reinforcement in a proportion of 20 wt % to 80 wt %, based on the weight of the respective outer wall reinforcement. If the proportion by weight of the reinforcing fibers in the core profile is within the range from 20% by weight to 80% by weight, based on the weight of the respective outer wall reinforcement, excellent elastic moduli according to DIN EN ISO 527-4:2022-03 are achieved. In this connection, it is preferred that the weight proportion of the reinforcing fibers in the core profile is within the range of from 25 wt % to 60 wt %, based on the weight of the core profile.It can also be advantageous if the composite profile according to the invention has an elastic modulus according to DIN EN ISO 527-4: 2022-03 in the range from 7000 N / mm 2 to 70000 N / mm 2 in the longitudinal direction of the profile.All plastic materials in the composite profile according to the invention can also be used in this case in the form of materials obtained by a recycling process. In particular, it is preferred that a recycled polyamide is contained in the inner profile. Additionally or alternatively, "fresh", i.e. non-recycled, polymer material can also be used in the shell profile.The weather-side outer wall of the weather-side outer wall reinforcement and / or the space-side outer wall of the space-side outer wall reinforcement can / can preferably be darkly colored and / or provided with a dark film, paint or coating and / or coextruded with a dark layer. Due to the high mechanical stability of the outer wall reinforcements, the problems of profile deformation at high temperatures in the case of dark outer walls can be compensated well. As used herein, the term "dark" means that more than 50%, preferably more than 60%, of the perpendicular incident sunlight, each including the relevant IR range, is absorbed by the dark color.It is particularly preferred to produce the weather-side outer wall reinforcement and the room-side outer wall reinforcement in a manner known per se by (co)extrusion of the core profile and of the casing profile.The statements relating to the composite profile according to the invention apply correspondingly with respect to the window or door frame according to the invention.To produce a window or door frame according to the invention, the composite profile according to the invention is cut to miter and sections cut to miter are connected to corner connectors or welding corner connectors to form a frame in a manner known per se. Alternatively, it is also possible, in the case of sections cut to miter, to mill back the weather-side outer wall reinforcement and / or the room-side outer wall reinforcement a distance and to weld the miter surfaces of the inner profiles to one another to form a window frame or door frame according to the invention.The window or door frame according to the invention, the composite profile according to the invention and in each case individual parts thereof can also be produced line by line or layer by layer using a line-forming or layer-forming production process (e.g. 3D printing), but preference is given to production by means of (co)extrusion (including pultrusion).The present invention will be explained in detail below with reference to the embodiments illustrated in the figures. Figure shows FIG. 1 shows a cross-sectional representation of a composite profile designed as a window sash profile according to an embodiment of the present invention; and FIG. 2 shows a cross-sectional representation of a composite profile, likewise designed as a window sash profile, according to a further embodiment of the present invention.FIG. 1 shows an embodiment of the composite profile 100 according to the invention using the example of a wing profile for a composite window in a cross-sectional illustration. The composite profile 1 according to the invention comprises. According to the invention, the composite profile for producing frames for windows or doors comprises an inner profile 10 and a weather-side outer wall reinforcement 30 fastened to the outer side of the weather-side outer wall 20 of the inner profile 10.According to the embodiment shown in FIG. 1, the inner profile 10 is designed as a hollow plastic profile 10 with a plurality of hollow chambers 60, hard PVC (PVC-U) with corresponding additives being used as the plastic material of the inner profile 10. Centrally, the inner profile 10 has a main hollow chamber 61 or reinforcing chamber, into which reinforcing elements, in particular a corresponding steel reinforcing element, can be accommodated, which further increases the mechanical stability of a window or door frame formed from the composite profile 100 according to the invention, if necessary. However, the mechanical stability of the composite profile 100 according to the invention alone, i.e. without an additional reinforcing element, is sufficient for forming large window frames or door frames.In addition, in the embodiment of the composite profile 100 according to the invention shown in FIG. 1, the plastic matrix of both the weather-side outer wall reinforcement 30 and the space-side outer wall reinforcement 35 is formed by means of reactive pultrusion from a polyamide material, in which continuous glass fibers are embedded by the pultrusion in a proportion by weight of 60% by weight, based on the total weight of the respective outer wall reinforcement 30, 35. In this embodiment, polyamide-6 is used.For fastening the outer wall reinforcements 30, 35 to the inner profile 10, the weather-side outer wall reinforcement 30 has two latching elements 32, 34, which engage in corresponding fastening grooves on the weather-side outer wall 11 of the inner profile 10. In contrast, the space-side outer wall reinforcement 35 has a latching element 36 which engages in a fastening groove on the space-side outer wall 21 of the inner profile 10. In addition, the inner profile 10 comprises on its space-side outer wall 21 a further latching element 22, which engages in a corresponding fastening groove on the space-side outer wall reinforcement 35.By means of the respective fastening, an additional hollow chamber 62, 63 is formed in each case between the weather-side outer wall reinforcement 30 and the weather-side outer wall 11 of the inner profile 10 and between the space-side outer wall reinforcement 35 and the space-side outer wall 21 of the inner profile 10, which further improve the thermal insulation properties of the composite profile 100 according to the invention. Thus, the inner profile 10, the weather-side outer wall reinforcement 30 and the room-side outer wall reinforcement 35 are each open profiles.FIG. 2 shows a further embodiment of the composite profile 100 according to the invention. In order to avoid repetitions, therefore, only differences from the embodiment of the composite profile 100 shown in FIG. 1 will be described below. The embodiments of FIG. 1 also apply correspondingly to the embodiment of FIG. 2. Identical elements are identified in the figures by identical reference numerals.FIG. 2 shows a cross-sectional representation of a further embodiment of the composite profile 100 according to the invention likewise using the example of a wing profile for a plastic window. The embodiment shown in FIG. 2 differs from the embodiment described with reference to FIG. 1 primarily with regard to the fastening of the weather-side outer wall reinforcement 30 and the space-side outer wall reinforcement 35 to the inner profile 10, which is in each case carried out in a materially bonded manner by adhesive bonding with a suitable liquid adhesive.For this purpose, the walls of the weather-side outer wall reinforcement 30 and of the room-side outer wall reinforcement 35 facing the inner profile 10 are configured to be smooth. Similarly, the weather-side outer wall 11 and the room-side outer wall 21 are smooth, so that a large adhesive surface is available between the inner profile and the outer wall reinforcements 30, 35.Alternatively, the weather-side outer wall 11 of the inner profile 10 can also be welded to the weather-side outer wall reinforcement 30 and the room-side outer wall 21 can also be welded to the room-side outer wall reinforcement 35. Large areas are also present for the welding.To improve the thermal insulation properties of the composite profile 100 according to the invention, both the weather-side outer wall reinforcement 30 and the room-side outer wall reinforcement 35 each have an additional hollow chamber 62, 63. In the embodiment of the composite profile 100 according to the invention shown in FIG. 2, the inner profile 10, the weather-side outer wall reinforcement 30 and the space-side outer wall reinforcement 35 are each closed profiles.The present invention has been described by way of example with reference to composite profiles for the sash of a window having an inner profile designed as a hollow plastics chamber profile. It is understood that the present invention is also applicable to other window or door profile profiles, in particular post profiles, window frame profiles for a window and for window frame, casement or sash frame profiles of a door, also with profile types other than inner profile.References included in the specificationThis list of documents cited by the applicant has been produced in an automated manner and is only included for the better information of the reader. The list is not part of the German patent application or utility model application. The DPMA does not take any adhesion for any faults or omissions.Patent Literature citedDE 82 82 82 221 U1

[0002] EP 4 174 272 A1

[0002] WO 2018 / 07228 766 A1

[0010] Cited Non-Patent LiteratureDIN EN ISO 527-4:2022-03 [0016, 0018]

Claims

Composite profile (100) for producing frames for windows or doors, comprising (a) an inner profile (10); and (b) a weather-side outer wall reinforcement (30) fastened to the outer side of the weather-side outer wall (11) of the inner profile (10), characterized in that the weather-side outer wall reinforcement (30) is formed as a reinforcement profile from a plastic matrix and reinforcement fibres embedded in the plastic matrix.Composite profile (100) according to Claim 1, characterized in that the inner profile (10) is designed as a hollow plastics profile (10) having a plurality of hollow chambers (60), as an aluminium profile, a thermally separated aluminium profile or as a wood profile.Composite profile (100) according to Claim 1 or Claim 2, characterized in that the composite profile (100) further comprises a spatial-side outer wall reinforcement (35) fastened to the outer side of the spatial-side outer wall (21) of the inner hollow profile (10).Composite profile (100) according to one of Claims 1 to 3, characterized in that the plastic matrix of the weather-side outer wall reinforcement (30) and / or of the room-side outer wall reinforcement (35) is formed from a polyamide material, a polyvinyl chloride material, a poly(meth)acrylate material, a polyester material or a copolymer or blend of said materials.Composite profile (100) according to one of Claims 1 to 4, characterized in that the weather-side outer wall reinforcement (30) and / or the space-side outer wall reinforcement (35) is / are connected, in particular bonded or welded, to the inner profile (10) in a materially bonded manner.Composite profile (100) according to one of Claims 1 to 5, characterized in that the weather-side outer wall reinforcement (30) and / or the room-side outer wall reinforcement (35) comprises at least one latching element (32, 34, 36) which is in engagement with a fastening groove of the inner profile (10).Composite profile (100) according to one of Claims 1 to 6, characterized in that the weather-side outer wall reinforcement (30) and / or the space-side outer wall reinforcement (35) comprises / comprise a core profile made from a plastics material and a casing profile, which at least partially surrounds the core profile and is made from a thermoplastic plastics material compatible with the plastics material of the core profile (30).Composite profile (100) according to Claim 7, characterized in that the plastics material of the core profile is a polyamide material, and the thermoplastic plastics material of the shell profile compatible with the plastics material of the core profile is a blend of a polyamide material and an acrylonitrile-styrene-acrylate terpolymer (ASA).Composite profile (100) according to one of Claims 1 to 6, characterized in that the weather-side outer wall reinforcement (30) and / or the space-side outer wall reinforcement (35) comprises / comprise a core profile made from a plastics material and a casing profile at least partially enveloping the core profile, wherein the casing profile is designed as a powder coating.Composite profile (100) according to Claim 9, characterized in that the surface resistance of the core profile (30) according to DIN EN 62631-3-2:2016-10 is at most 10 8 Ω.Composite profile (100) according to one of Claims 1 to 10, characterized in that the reinforcing fibres are designed as glass and / or carbon and / or aramid fibres and / or basalt fibres.Window or door frame formed from portions of a composite profile (100) according to any one of claims 1 to 11.

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