EP4575165A1 - Profilé creux de fenêtre ou de porte et son procédé de fabrication - Google Patents

Profilé creux de fenêtre ou de porte et son procédé de fabrication Download PDF

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Publication number
EP4575165A1
EP4575165A1 EP24222185.1A EP24222185A EP4575165A1 EP 4575165 A1 EP4575165 A1 EP 4575165A1 EP 24222185 A EP24222185 A EP 24222185A EP 4575165 A1 EP4575165 A1 EP 4575165A1
Authority
EP
European Patent Office
Prior art keywords
profile
window
hollow chamber
door
core
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP24222185.1A
Other languages
German (de)
English (en)
Inventor
Ahmad Al-Sheyyab
Norbert Fink
Stephan Sell
Horst Tippenhauer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rehau Industries SE and Co KG
Original Assignee
Rehau Industries SE and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE102024107662.3A external-priority patent/DE102024107662A1/de
Application filed by Rehau Industries SE and Co KG filed Critical Rehau Industries SE and Co KG
Publication of EP4575165A1 publication Critical patent/EP4575165A1/fr
Pending legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/30—Coverings, e.g. protecting against weather, for decorative purposes
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/04—Wing frames not characterised by the manner of movement
    • E06B3/06—Single frames
    • E06B3/08—Constructions depending on the use of specified materials
    • E06B3/20—Constructions depending on the use of specified materials of plastics
    • E06B3/22—Hollow frames

Definitions

  • the invention relates to a window or door profile hollow chamber profile comprising (a) a core profile with a plastic matrix formed from plastic material and reinforcing fibers contained in the plastic matrix; and (b) a coating layer in the form of a powder coating that at least partially encloses the core profile. Furthermore, the present invention relates to a method for producing a window or door profile hollow chamber profile.
  • the aim is to achieve the best possible thermal insulation of the resulting window or door.
  • thermoplastic material for example, polyvinyl chloride (PVC)
  • PVC polyvinyl chloride
  • DE 82 82 221 U1 A profile strip consisting of a core profile made of polyvinyl chloride, which contains short glass fibers with a length of up to 12 mm in an amount of up to 50 wt.%, and a PVC sheath profile with high impact resistance encasing this core profile is known.
  • DE 203 02 286 U1 The continuous fiber reinforcement of one or more areas of a window profile made of thermoplastic material with a fiber volume content of more than 20% is proposed. Such window and door profiles reinforced with continuous fibers have very high moduli of elasticity.
  • the present invention comes in, which is based on the task of providing a window or door profile hollow chamber profile that overcomes the disadvantages of the The present invention at least partially overcomes the disadvantages of the prior art.
  • the window or door profile hollow chamber profile according to the invention should have a good surface quality and high mechanical stability even after powder coating of the surface.
  • the present invention also lies in the provision of a method for producing such a window or door profile hollow chamber profile.
  • window or door profile hollow chamber profile having the features of claim 1 or by a method having the features of claim 8.
  • Preferred embodiments of the window or door profile hollow chamber profile according to the invention and of the method according to the invention are each described in the dependent claims.
  • a high surface quality can also be achieved for powder-coated, fiber-reinforced plastic profiles by making the outer side of the plastic profile to be coated electrically or statically conductive. This leads to better adhesion of the powder coating to the fiber-reinforced plastic profile and a more compact coating, resulting in a good surface quality of the coated plastic profile that is equivalent to that of corresponding powder-coated metal profiles. According to the present invention, this is achieved by making the core profile electrically or statically conductive, at least on its surface.
  • the present invention lies in the provision of a window or door profile hollow chamber profile which comprises (a) a core profile with a plastic matrix formed from plastic material and reinforcing fibers contained in the plastic matrix; and (b) a coating layer in the form of a powder coating which at least partially envelops the core profile, wherein the window or door profile hollow chamber profile is characterized according to the invention in that the core profile is designed to be electrically conductive at least on its surface.
  • the term "surface resistance” means the electrical resistance measured on the surface of the core profile according to DIN EN 62631-3-2:2016-10, in particular using the “ring electrode” method.
  • an “electrically conductive” surface is one that has a surface resistance in the range of 10 2 ⁇ to 10 6 ⁇ .
  • a “statically conductive” surface is referred to in this context if the surface resistance is in the range between 10 6 and 10 8 ⁇ .
  • the lower limit of the surface resistance is preferably 10 2 ⁇ , in particular 5*10 2 ⁇ .
  • plastic material describes a plastic, in particular a thermoplastic, to which the additives customary for the production of window or door profile hollow chambers, such as stabilizers, plasticizers, pigments, and the like, have been added.
  • polyamide in connection with a plastic material means, for example, that the additives customary for the production of window or door profile hollow chambers, such as stabilizers, plasticizers, pigments, and the like, have been added to the polyamide as the actual plastic material.
  • PVC polyvinyl chloride
  • poly(meth)acrylates polyesters, and the like.
  • the surface resistance of the core profile according to DIN EN 62631-3-2:2016-10 is at most 10 6 ⁇ , preferably at most 10,000 ⁇ .
  • Such a surface resistance value has proven sufficient to achieve powder coatings with good adhesion to the core profile and high surface quality.
  • a value of 100 ⁇ can be mentioned as a preferred lower limit for the surface resistance.
  • the plastic material of the core profile contains electrically conductive particles in a proportion of 0.5 wt.% to 50 wt.%, preferably 1 wt.% to 30 wt.%, and particularly preferably 5 wt.% to 20 wt.%, in each case based on the weight of the core profile as 100 wt.%.
  • the core profile comprises an outer layer which contains electrically conductive particles in a proportion of 0.5 wt.% to 50 wt.%, preferably 1 wt.% to 30 wt.%, and particularly preferably 5 wt.% to 20 wt.%, in each case based on the weight of the outer layer as 100 wt.%. This allows the total amount of electrically conductive particles to be used according to the invention to be considerably reduced.
  • the thickness of the outer layer of the core profile is within a range of 0.3 mm to 1.5 mm, in particular within a range of 0.5 mm to 1.0 mm A thickness of the outer layer in this range sufficiently covers any glass fibers that may appear on the surface.
  • the electrically conductive particles are selected from electrically conductive carbon black particles, electrically conductive carbon fiber particles, electrically conductive carbon nanotubes, electrically conductive graphite particles, metallic particles (especially copper, aluminum, and the like), and combinations thereof. Such particles have been proven effective according to the invention and are readily available commercially.
  • the plastic matrix of the core profile is designed as a polyvinyl chloride matrix, poly(meth)acrylate matrix, polyester matrix or polyamide matrix.
  • the plastic matrix of the core profile is expediently designed as a polyacrylate matrix, in particular PMMA matrix.
  • the core profile is preferably produced by reactive pultrusion of the corresponding monomers and/or reactive oligomers to produce polyacrylate, e.g., polymethyl methacrylate (PMMA).
  • polyester e.g., polyethylene terephthalate (PET), in particular impact-resistant polyethylene terephthalate (PET-G), or polybutylene terephthalate (PBT), or thermoplastic polyurethanes (TPU).
  • PET polyethylene terephthalate
  • PET-G impact-resistant polyethylene terephthalate
  • PBT polybutylene terephthalate
  • TPU thermoplastic polyurethanes
  • polyamide for example PA6 or PA12, or bisphenol A (BPA), polycarbonate (PC), polyesteramides or polyimides, preferably by means of reactive pultrusion, is also within the scope of the invention.
  • BPA bisphenol A
  • PC polycarbonate
  • polyesteramides or polyimides preferably by means of reactive pultrusion
  • 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 blends of the aforementioned polyamides.
  • Polyamide-6 is particularly preferred due to its good availability.
  • this outer layer is preferably made of a polymer compatible with the core profile.
  • the material of the outer layer corresponds to the material of the plastic matrix of the core profile.
  • the coating is preferably also made of a poly(meth)acrylate.
  • the same materials as for the plastic matrix of the core profile can be used for the coating, i.e., in addition to poly(meth)acrylate (e.g., PMMA), polyester (e.g., PET, PET-G, or PBT), polyurethanes (e.g., TPU), polyamides (e.g., PA6 or PA12), BPA, or PC.
  • the outer layer preferably does not contain any fiber-reinforced material.
  • the outer layer is coextruded with the core profile.
  • coextrusion also refers to the application of the coating to the freshly produced core profile by means of an online extrusion process immediately following the reactive pultrusion. In this case, intermediate cooling of the core profile prior to application of the coating is also within the scope of the invention.
  • the core profile and the coating can be produced in a single tool.
  • the plastic matrix of the core profile may be formed as a polyamide matrix.
  • the polyamide is then 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 copolymers (ABS) and acrylonitrile-acrylate-styrene copolymers (ASA).
  • ABS acrylonitrile-butadiene-styrene copolymers
  • ASA acrylonitrile-acrylate-styrene copolymers
  • polyamide 6 is particularly preferred due to its good availability.
  • thermoplastic material of the outer layer which is compatible with the plastic material of the core profile, is also preferably selected from these materials.
  • the polyamide of the core profile is preferably also used as the thermoplastic material of the shell profile.
  • polyamide 6 is used as the plastic material of the core profile and the outer profile.
  • an outer layer of the core profile preferably has a thickness in the range of 0.3 mm to 1.5 mm.
  • the core profile is preferably completely surrounded by the outer layer in cross-section.
  • the weather-side outer wall, the room-side outer wall, and the fitting-side profile outer wall have such a outer layer.
  • the remaining wall thickness of the weather-side outer wall, the room-side outer wall, and the fitting-side profile outer wall is then preferably formed by the core profile. This maintains smooth visible surfaces of the structural elements formed from the window or door profile hollow chamber profile according to the invention while maintaining very high stability of the formed frame.
  • the outer layer formed by the casing profile preferably has a thickness in the range of approximately 0.4 mm to approximately 1.2 mm, in particular approximately 0.5 mm to approximately 0.9 mm, particularly preferably approximately 0.6 mm.
  • the reinforcing fibers are expediently formed as glass and/or carbon 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. Within the scope of the invention, it is preferred to use short glass fibers with a fiber length in the range of 0.1 mm to 5 mm, long glass fibers with a fiber length in the range of 5 mm to 50 mm and/or continuous glass fibers with a length of over 50 mm, individually or in combination.
  • the core profile is preferably produced by extrusion or coextrusion
  • the production of the window or door profile hollow chamber profile according to the invention by means of reactive pultrusion is most suitable.
  • the average fiber length of the reinforcing fibers is in the range of 1.5 mm to 3.2 mm.
  • An average length of the glass fibers in this range leads to high mechanical stability of a window or door profile hollow chamber profile according to the invention, both in the longitudinal direction and perpendicular to it.
  • an average fiber length in a range of 2.5 mm to 3.0 mm has proven particularly suitable.
  • the use of continuous glass fibers is particularly preferred.
  • continuous glass fibers For continuous glass fibers, the greatest need exists to improve the surface quality. Furthermore, the use of continuous glass fibers achieves the highest stiffness and strength values, with a modulus of elasticity according to DIN EN ISO 527-4: 2022-03 of up to 70,000 N/ mm2 in the longitudinal direction of the profile.
  • the reinforcing fibers are included in the core profile in a proportion of 10 wt.% to 90 wt.%, based on the weight of the core profile as 100 wt.%. If the weight fraction of the reinforcing fibers in the core profile is within the range of 10 wt.% to 90 wt.%, based on the weight of the core profile as 100 wt.%, excellent elastic moduli are achieved according to DIN EN ISO 527-4: 2022-03 and corresponding core profiles can be produced, for example, by means of reactive pultrusion.
  • the weight fraction of the reinforcing fibers in the core profile is within the range of 20 wt.% to 80 wt.%, in particular 30 wt.% to 60 wt.%, in each case based on the weight of the core profile as 100 wt.%.
  • the coating layer formed in the form of a powder coating materials, application, and curing processes known per se to those skilled in the art can be used according to the invention.
  • powder coating compositions based on polyester resins, epoxy resins, and/or (meth)acrylate resins, as well as mixtures thereof, which may additionally contain crosslinking resins (hardeners), pigments, fillers, and other coating additives can be used according to the invention.
  • crosslinking resins hardeners
  • pigments pigments
  • fillers fillers
  • other coating additives can be used according to the invention.
  • Epoxy resins, polyester resins, and mixtures containing these have proven particularly suitable according to the invention, as they provide the best wetting of the surfaces of the plastic profiles.
  • To cure powder coatings it is necessary to first melt the powder deposited on the substrate by heating it to temperatures above the glass transition temperature or the melting point of the powder coating formulation.
  • Heat sources used include, for example, convection ovens, infrared radiators, or combinations of both.
  • the powder coating is typically cured by heating to temperatures between 140 and 200°C for a period of approximately 10 to 30 minutes.
  • the molten powder layer is cured within a few seconds using ultraviolet radiation.
  • the powder coating has a thickness in the range of 25 ⁇ m to 200 ⁇ m, in particular in the range of 60 ⁇ m to 120 ⁇ m.
  • All plastic materials in the hollow chamber window or door profile according to the invention can also be used in the form of materials obtained through a recycling process.
  • a recycled polyamide be contained in the core profile.
  • "fresh,” i.e., non-recycled, polymer material can also be used in the shell profile.
  • the core profile of the window or door profile hollow chamber profile according to the invention can be produced in a manner known per se by coextrusion of the core profile and the shell profile.
  • the hollow chamber window or door profiles according to the invention are preferably used to manufacture a plastic window or a plastic door.
  • a window or door frame can be obtained by welding mitered pieces of a hollow chamber window or door profile according to the invention or by connecting such pieces using appropriate corner connectors.
  • the window or door frame is intended for installation in an opening in the wall of a building or can be installed in the opening in the wall of a building.
  • the production of the core profile, optionally together with the outer layer is carried out by means of extrusion, coextrusion or pultrusion, in particular by means of reactive pultrusion.
  • the window or door profile hollow chamber profile according to the invention as well as individual parts thereof can also be produced line by line or layer by layer using a line-building or layer-building manufacturing process (e.g. 3D printing), but production by means of the process according to the invention is preferred.
  • a line-building or layer-building manufacturing process e.g. 3D printing
  • FIG. 1 shows a cross-sectional view of a window or door profile hollow chamber profile designed as a window sash profile according to one embodiment of the present invention.
  • FIG. 1 An embodiment of the window or door profile hollow chamber profile 1 according to the invention is shown in a cross-sectional view using the example of a sash profile for a plastic window.
  • the window or door profile hollow chamber profile 1 according to the invention comprises a weather-side outer wall 2 and a room-side outer wall 3.
  • Two hollow chambers 4, 5 are adjacent to the weather-side outer wall 2, which are delimited by walls 6, 6', 6" designed as webs and the weather-side outer wall 2.
  • the hollow chamber profile 1 according to the invention comprises a main hollow chamber 7.
  • the upper web 8 of the main hollow chamber 7, together with an outer overlap 5, forms a rebate area. 10, into which a surface element (not shown), in particular an insulating glazing, can be accommodated.
  • the surface element is stabilized by a glazing bead (not shown) which can be anchored in a glazing bead groove 11 of the hollow chamber profile 1 according to the invention.
  • a glazing bead (not shown) which can be anchored in a glazing bead groove 11 of the hollow chamber profile 1 according to the invention.
  • Fig. 1 The outer wall 12 of the hollow chamber profile 1 according to the invention arranged at the bottom is referred to as the fitting-side profile outer wall 12, while the side opposite the fitting side is referred to as the rebate side with a rebate-side profile outer wall 13.
  • the core profile 30 completely encloses the inner walls, for example the walls 6, 6', 6", the rebate-side profile outer wall 13 and sections of the glazing bead groove 11, as well as partially enclosing the weather-side outer wall 2, the fitting-side profile outer wall 12 and the room-side outer wall 3, directed towards the inside of the profile.
  • the remaining parts of the wall thickness of the weather-side outer wall 2, the room-side outer wall 3, the glazing bead groove 11, the fitting-side profile outer wall 12 and the stop 14 are formed by an outer layer 31.
  • the outer layer 31 thus partially forms the outer side of the core profile 30.
  • This outer side of the core profile 30 is completely encased by a jacket profile 40 in the form of a powder coating.
  • the jacket profile 40 has a thickness of 80 ⁇ m.
  • the core profile 30 comprises a plastic matrix made of polyamide 6, to which additives customary for the extrusion of window or door profile hollow chamber profiles, such as stabilizers, plasticizers, pigments, and the like, are added.
  • additives customary for the extrusion of window or door profile hollow chamber profiles such as stabilizers, plasticizers, pigments, and the like.
  • short glass fibers with an average fiber length of 2.7 mm are embedded in the plastic matrix in a proportion of 45 wt. %, based on the weight of the core profile 30 as 100 wt. %.
  • the outer layer 31 forms a mixture of electrically conductive polyamide 6 (Percolen PA 4200 EC; purchased from Grafe GmbH & Co.
  • a polyester-based powder coating (TIGER Drylac ® Series 068 smooth, satin finish; purchased from TIGER Coatings GmbH & Co. KG, A-4600 Wels) was applied to the resulting profiles as well as to the core profile 30 without outer layer 31, each in a layer thickness of 80 ⁇ m, and cured.
  • the window profiles 1 according to the invention exhibited a smooth surface finish comparable to that of powder-coated aluminum profiles, as well as good paint adhesion, in the areas with an outer layer 31, i.e., with an electrically conductive surface (inventive examples), after curing, whereas several large bubbles appeared on the surface in the areas without an outer layer 31.
  • the core profile 30 is also formed entirely from the electrically conductive plastic material with reinforcing fibers embedded therein (without outer layer 31). In such cases, powder coatings with good surface quality and good adhesion to the core profile 30 are also obtained.
  • the window profiles 1 according to the Fig. 1 The embodiment of the present invention shown has very good weather resistance and high mechanical stability both in the longitudinal direction (E-modulus according to DIN EN ISO 527-4: 2022-03 of 9,400 N/mm2) and perpendicular to it.
  • the window profile 1 according to the invention was produced by coextruding the core profile 30 with the outer layer 31 and subsequently applying the jacket layer 40 by powder coating.
  • the present invention has been described by way of example with reference to hollow chamber profiles for the sash of a window. It is understood that the present The invention is also applicable to other window or door profile hollow chamber profiles, in particular frame profiles for a window as well as for frame, casing or sash frame profiles of a door.

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  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)
EP24222185.1A 2023-12-22 2024-12-20 Profilé creux de fenêtre ou de porte et son procédé de fabrication Pending EP4575165A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102023136463 2023-12-22
DE102024107662.3A DE102024107662A1 (de) 2023-12-22 2024-03-18 Fenster- oder Türhohlkammerprofils sowie Verfahren zu seiner Herstellung

Publications (1)

Publication Number Publication Date
EP4575165A1 true EP4575165A1 (fr) 2025-06-25

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP24222185.1A Pending EP4575165A1 (fr) 2023-12-22 2024-12-20 Profilé creux de fenêtre ou de porte et son procédé de fabrication

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US (1) US20250207455A1 (fr)
EP (1) EP4575165A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021122153A1 (de) * 2021-08-26 2023-03-02 REHAU Industries SE & Co. KG Verfahren zur Herstellung eines polymeren, insbesondere thermoplastischen Fenster- oder Tür-Hohlkammerprofils

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1223188A1 (fr) * 2001-01-08 2002-07-17 Technoform Caprano + Brunnhofer oHG Procédé pour préparer un profilé en matière plastique au revêtement par poudre
DE20302286U1 (de) 2003-02-12 2003-04-24 Funck, Ralph, Dr., 67661 Kaiserslautern Fensterrahmen mit kontinuierlich faserverstärkten Thermoplasten
DE102016119766A1 (de) * 2016-10-18 2018-04-19 Rehau Ag + Co Verfahren zur Herstellung eines thermoplastischen Fenster- oder Tür-Hohlkammerprofils
DE102017129352A1 (de) * 2017-12-08 2019-06-13 Ensinger Gmbh Polymer-basierendes Substrat sowie Verfahren zu dessen Herstellung
EP3631135B1 (fr) * 2017-05-31 2022-02-09 Technoform Bautec Holding GmbH Profilé pour fenêtre, porte, éléments de façade et de bardage et son procédé de fabrication

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1223188A1 (fr) * 2001-01-08 2002-07-17 Technoform Caprano + Brunnhofer oHG Procédé pour préparer un profilé en matière plastique au revêtement par poudre
DE20302286U1 (de) 2003-02-12 2003-04-24 Funck, Ralph, Dr., 67661 Kaiserslautern Fensterrahmen mit kontinuierlich faserverstärkten Thermoplasten
DE102016119766A1 (de) * 2016-10-18 2018-04-19 Rehau Ag + Co Verfahren zur Herstellung eines thermoplastischen Fenster- oder Tür-Hohlkammerprofils
EP3631135B1 (fr) * 2017-05-31 2022-02-09 Technoform Bautec Holding GmbH Profilé pour fenêtre, porte, éléments de façade et de bardage et son procédé de fabrication
DE102017129352A1 (de) * 2017-12-08 2019-06-13 Ensinger Gmbh Polymer-basierendes Substrat sowie Verfahren zu dessen Herstellung

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