EP4310290A1 - Joint d'étanchéité pour la construction de fenêtres et de façades - Google Patents

Joint d'étanchéité pour la construction de fenêtres et de façades Download PDF

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Publication number
EP4310290A1
EP4310290A1 EP23186806.8A EP23186806A EP4310290A1 EP 4310290 A1 EP4310290 A1 EP 4310290A1 EP 23186806 A EP23186806 A EP 23186806A EP 4310290 A1 EP4310290 A1 EP 4310290A1
Authority
EP
European Patent Office
Prior art keywords
sealing profile
foamed
tpe material
blowing agent
density
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
EP23186806.8A
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German (de)
English (en)
Inventor
Hans-Joachim Kuhlemann
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Individual
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Individual
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Publication date
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Publication of EP4310290A1 publication Critical patent/EP4310290A1/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
    • E06B3/54—Fixing of glass panes or like plates
    • E06B3/58—Fixing of glass panes or like plates by means of borders, cleats, or the like
    • E06B3/62—Fixing of glass panes or like plates by means of borders, cleats, or the like of rubber-like elastic cleats
    • 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
    • E06B7/00—Special arrangements or measures in connection with doors or windows
    • E06B7/16—Sealing arrangements on wings or parts co-operating with the wings
    • E06B7/22—Sealing arrangements on wings or parts co-operating with the wings by means of elastic edgings, e.g. elastic rubber tubes; by means of resilient edgings, e.g. felt or plush strips, resilient metal strips
    • E06B7/23—Plastic, sponge rubber, or like strips or tubes
    • 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
    • E06B7/00—Special arrangements or measures in connection with doors or windows
    • E06B7/16—Sealing arrangements on wings or parts co-operating with the wings
    • E06B7/22—Sealing arrangements on wings or parts co-operating with the wings by means of elastic edgings, e.g. elastic rubber tubes; by means of resilient edgings, e.g. felt or plush strips, resilient metal strips
    • E06B7/23—Plastic, sponge rubber, or like strips or tubes
    • E06B7/2305—Plastic, sponge rubber, or like strips or tubes with an integrally formed part for fixing the edging
    • E06B7/2307—Plastic, sponge rubber, or like strips or tubes with an integrally formed part for fixing the edging with a single sealing-line or -plane between the wing and the part co-operating with the wing
    • E06B7/2309—Plastic, sponge rubber, or like strips or tubes with an integrally formed part for fixing the edging with a single sealing-line or -plane between the wing and the part co-operating with the wing with a hollow sealing part
    • 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
    • E06B7/00—Special arrangements or measures in connection with doors or windows
    • E06B7/16—Sealing arrangements on wings or parts co-operating with the wings
    • E06B7/22—Sealing arrangements on wings or parts co-operating with the wings by means of elastic edgings, e.g. elastic rubber tubes; by means of resilient edgings, e.g. felt or plush strips, resilient metal strips
    • E06B7/23—Plastic, sponge rubber, or like strips or tubes
    • E06B7/2305—Plastic, sponge rubber, or like strips or tubes with an integrally formed part for fixing the edging
    • E06B7/2307—Plastic, sponge rubber, or like strips or tubes with an integrally formed part for fixing the edging with a single sealing-line or -plane between the wing and the part co-operating with the wing
    • E06B7/231—Plastic, sponge rubber, or like strips or tubes with an integrally formed part for fixing the edging with a single sealing-line or -plane between the wing and the part co-operating with the wing with a solid sealing part
    • 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
    • E06B7/00—Special arrangements or measures in connection with doors or windows
    • E06B7/16—Sealing arrangements on wings or parts co-operating with the wings
    • E06B7/22—Sealing arrangements on wings or parts co-operating with the wings by means of elastic edgings, e.g. elastic rubber tubes; by means of resilient edgings, e.g. felt or plush strips, resilient metal strips
    • E06B7/23—Plastic, sponge rubber, or like strips or tubes
    • E06B7/2314—Plastic, sponge rubber, or like strips or tubes characterised by the material
    • 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
    • E06B3/54—Fixing of glass panes or like plates
    • E06B3/58—Fixing of glass panes or like plates by means of borders, cleats, or the like
    • E06B3/62—Fixing of glass panes or like plates by means of borders, cleats, or the like of rubber-like elastic cleats
    • E06B2003/6217—Fixing of glass panes or like plates by means of borders, cleats, or the like of rubber-like elastic cleats with specific fixing means
    • E06B2003/6223—Fixing of glass panes or like plates by means of borders, cleats, or the like of rubber-like elastic cleats with specific fixing means with protruding parts anchored in grooves
    • 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
    • E06B3/54—Fixing of glass panes or like plates
    • E06B3/58—Fixing of glass panes or like plates by means of borders, cleats, or the like
    • E06B3/62—Fixing of glass panes or like plates by means of borders, cleats, or the like of rubber-like elastic cleats
    • E06B2003/625—Specific form characteristics
    • E06B2003/6264—Specific form characteristics hollow
    • 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
    • E06B3/54—Fixing of glass panes or like plates
    • E06B3/58—Fixing of glass panes or like plates by means of borders, cleats, or the like
    • E06B3/62—Fixing of glass panes or like plates by means of borders, cleats, or the like of rubber-like elastic cleats
    • E06B2003/627—Fixing of glass panes or like plates by means of borders, cleats, or the like of rubber-like elastic cleats with specific characteristics concerning the material
    • 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
    • E06B3/54—Fixing of glass panes or like plates
    • E06B3/58—Fixing of glass panes or like plates by means of borders, cleats, or the like
    • E06B3/62—Fixing of glass panes or like plates by means of borders, cleats, or the like of rubber-like elastic cleats
    • E06B2003/627—Fixing of glass panes or like plates by means of borders, cleats, or the like of rubber-like elastic cleats with specific characteristics concerning the material
    • E06B2003/6276—Fixing of glass panes or like plates by means of borders, cleats, or the like of rubber-like elastic cleats with specific characteristics concerning the material with parts of differing nature, e.g. hardness
    • 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
    • E06B3/54—Fixing of glass panes or like plates
    • E06B3/58—Fixing of glass panes or like plates by means of borders, cleats, or the like
    • E06B3/62—Fixing of glass panes or like plates by means of borders, cleats, or the like of rubber-like elastic cleats
    • E06B2003/627—Fixing of glass panes or like plates by means of borders, cleats, or the like of rubber-like elastic cleats with specific characteristics concerning the material
    • E06B2003/6279—Fixing of glass panes or like plates by means of borders, cleats, or the like of rubber-like elastic cleats with specific characteristics concerning the material with coverings or embellisher strips
    • 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
    • E06B3/54—Fixing of glass panes or like plates
    • E06B3/58—Fixing of glass panes or like plates by means of borders, cleats, or the like
    • E06B3/62—Fixing of glass panes or like plates by means of borders, cleats, or the like of rubber-like elastic cleats
    • E06B2003/627—Fixing of glass panes or like plates by means of borders, cleats, or the like of rubber-like elastic cleats with specific characteristics concerning the material
    • E06B2003/6282—Fixing of glass panes or like plates by means of borders, cleats, or the like of rubber-like elastic cleats with specific characteristics concerning the material of cellular nature
    • 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
    • E06B3/54—Fixing of glass panes or like plates
    • E06B3/58—Fixing of glass panes or like plates by means of borders, cleats, or the like
    • E06B3/62—Fixing of glass panes or like plates by means of borders, cleats, or the like of rubber-like elastic cleats
    • E06B2003/6291—Corner arrangements

Definitions

  • the present invention relates to a sealing profile for window and facade construction, a method for its production and the use of the sealing profile in window and facade construction.
  • the material properties of seals have a direct effect on the U w value, ie on the thermal quality of a window or building envelope. Efforts to improve these material properties by optimizing mixtures for sealing profiles usually consist of reducing the density of the mixture profile, which naturally leads to a reduction in thermal conductivity and is therefore advantageous. It should be taken into account that although a reduction in the thermal conductivity of a sealing profile leads to improved thermal insulation, this can lead to losses in strength as well as in processing and functionality.
  • a common density for foamed areas in a sealing profile is in the range of 0.6 to 0.75 g/cm 3 .
  • Fraunhofer Institute confirms thermal conductivity values, it is unthinkable to work with foamed sealing profiles that have a density lower than 0.6 g/cm 3 and would tend to achieve even better thermal conductivity values because these seals lose their shape when foamed and the resulting sealing profile is not durable and sufficiently dimensionally stable.
  • Rubber sealing profiles known from the prior art are usually made of rubber. Rubber sealing profiles with the desired cross-section are easily available, but not in the desired density. Rubber is also disadvantageous because it cannot be welded and, due to vulcanization, cannot be recycled or reused.
  • EP 3 577 167 B1 describes a sealing profile for windows and doors made of a material mixture which, in addition to EPDM and filler, plasticizer, accelerator, sulfur, peroxide and optionally zinc oxide, also contains a thermoplastic or a thermoplastic elastomer that is not sulfur-crosslinkable and a propylene-ethylene copolymer, an ethylene Butene copolymer or an ethylene-propylene copolymer.
  • EP 2 369 116 B1 a sealing profile for window and facade construction, preferably based on EPDM.
  • the US 2022/0177684 A1 describes sealing profiles from the automotive sector based on foamed TPVs.
  • the DE 698 08 248 T2 describes the production of a foamed thermoplastic object from a thermoplastic elastomer, for example from SEBS.
  • the object of the present invention to provide an alternative sealing profile, in particular for window and facade construction, which avoids the above-mentioned disadvantages known from the prior art and is preferably characterized by the fact that it has a lower density and a lower thermal conductivity than from the Sealing profiles known from the prior art.
  • the sealing profile according to the invention should preferably also be characterized by recyclability and reusability and should therefore be more sustainable and environmentally friendly than previously known sealing profiles.
  • a sealing profile comprising or consisting of a foamed area, the foamed area being made from a composition containing a TPE material containing a blowing agent, the TPE material being a thermoplastic elastomer, preferably based on styrene, and wherein the foamed area has a density of ⁇ 0.5 g/cm 3 and a thermal conductivity ⁇ of ⁇ 0.09 W/(mK).
  • a sealing profile is understood to mean a sealing profile, in particular for use in window and facade construction, with a suitable cross-section required for the respective application.
  • An exemplary sealing profile for use in window and facade construction is shown schematically in the Figure 1 shown.
  • the sealing profile according to the invention has or consists of a foamed area.
  • the entire sealing profile has a density of ⁇ 0.5 g/cm 3 .
  • the sealing profile can also have one or more further foamed areas with a different density or, alternatively, have one or more non-foamed areas with a higher density.
  • a sealing profile which has a foamed area with a density of ⁇ 0.5 can be obtained from a composition which contains a TPE material which is a thermoplastic elastomer, preferably based on styrene g/cm 3 comprises or consists of. More preferably, the foamed area even has a density of ⁇ 0.45 g/cm 3 or ⁇ 0.4 g/cm 3 .
  • Achieving the low density of a sealing profile according to the invention has so far been considered by experts to be extremely desirable, but not achievable, as the publication cited at the beginning shows.
  • the use of a composition based on a TPE material in combination with a blowing agent has allowed such a low density to be achieved.
  • the thermal conductivity ⁇ of the foamed area of the sealing profile according to the invention is ⁇ 0.09 W/(m.K), preferably ⁇ 0.08 W/(m.K), more preferably ⁇ 0.075 W/(m.K) and even more preferably ⁇ 0.07 W/(m.K ).
  • the styrene-based thermoplastic elastomer is a styrene-ethylene-butylene-styrene (SEBS) block copolymer or a derivative thereof, in particular with a hardness of 25 to 35 Shore A, more preferably of 27 to 33 Shore A and particularly preferred of about 30 Shore A.
  • SEBS styrene-ethylene-butylene-styrene
  • thermoplastic elastomer is TPE-V, a vulcanized thermoplastic elastomer based on EPDM and PP.
  • the blowing agent with which the composition containing the TPE material is added and from which the foamed area is made is or contains an isoalkane, in particular isopentane, isohexane or isoheptane.
  • the sealing profile may have another foamed or non-foamed area with a different density in addition to the foamed area.
  • the so-called sealing or functional area also a smaller and stiffer so-called assembly area or hardness area with which the sealing profile is mounted on the window.
  • the sealing profile according to the invention is characterized by an excellent restoring force in comparison to sealing profiles not according to the invention, for example sealing profiles made of EPDM with a density of 0.6 g/cm 3 . If a TPE is compressed by external force, it generates a reaction force, sometimes also referred to as a sealing force. With constant load, the internal stresses in the material decrease as the time progresses, which means that the restoring force of the TPE material decreases. This is also known as compressive stress relaxation.
  • the sealing profile according to the invention has a very good restoring force both in the embodiment in which it consists of the foamed area and in embodiments in which it has at least one further area, as can be seen when determining the stress relaxation under pressure according to DIN ISO 3384 has shown.
  • the restoring force of the sealing profile is even better in embodiments that, in addition to the foamed area, have at least one further area with a higher density than the density of the foamed area than in embodiments without another area. The further area with higher density therefore apparently acts as a support for the foamed area.
  • the sealing profile according to the invention also comprises a corner part which comprises or consists of a foamed area, the foamed area being made from a composition containing a TPE material containing a blowing agent, a density of ⁇ 0.5 g/ cm 3 , preferably ⁇ 0.45 g/cm 3 and even more preferably ⁇ 0.4 g/cm 3 and a thermal conductivity ⁇ of ⁇ 0.09 W/(mK), preferably ⁇ 0.08 W/(mK) , more preferably ⁇ 0.075 W/(mK) and even more preferably ⁇ 0.07 W/(mK).
  • the foamed area that the corner part encompasses or from which it consists is made of the same material as the foamed area of the remaining sealing profile.
  • the TPE material contained in the composition provided is preferably a styrene-ethylene-butylene-styrene (SEBS) block copolymer or a derivative thereof, in particular with a hardness of 25 to 35 Shore A, more preferably of 27 to 33 Shore A and particularly preferred of about 30 Shore A.
  • SEBS styrene-ethylene-butylene-styrene
  • the TPE material contained in the composition provided is TPE-V, a vulcanized thermoplastic elastomer based on EPDM and PP.
  • the composition provided in step a) of the process according to the invention optionally contains up to 30% by weight of additives, in particular selected from the group that includes calcium carbonate, oil, polypropylene, plasticizers, pigments and additives for better UV resistance.
  • additives in particular selected from the group that includes calcium carbonate, oil, polypropylene, plasticizers, pigments and additives for better UV resistance.
  • Calcium carbonate and pigments are used primarily to color the composition and, as a result, the sealing profile, while an oil component serves to increase the flexibility of the resulting sealing profile.
  • step b) of the method according to the invention the composition provided in step a), which contains the styrene-based thermoplastic elastomer, preferably in granular form, is mixed with a blowing agent, which is in particular an isoalkane, for example isopentane, isohexane or isoheptane.
  • a blowing agent which is in particular an isoalkane, for example isopentane, isohexane or isoheptane.
  • a blowing agent is used which is contained in a granular composition which contains acrylonitrile, methacrylonitrile, isopentane and an ethylene/vinyl copolymer.
  • the composition containing the TPE material containing the blowing agent is tempered to a processing temperature and both components (the blowing agent and the composition containing the TPE material) are mixed to form a homogeneous mass.
  • Both the tempering and the mixing to form the homogeneous mass are preferably carried out in an extruder, in particular a screw extruder.
  • Both the composition containing the TPE material and the blowing agent, which can also be contained in a composition are supplied to this, for example via a weight-controlled metering unit.
  • the proportion of blowing agent is preferably 3-9% by weight, based on the mass of the composition containing the TPE material.
  • composition containing the TPE material and the blowing agent are conveyed through the various zones of the extruder or the extruder screw, in which they are tempered to a processing temperature between 100 and 200 ° C or melted, mixed and homogenized.
  • the composition containing the TPE material is foamed more than by adding the blowing agent in the lower region of the 3-9 wt.% frame, which is the Density is reduced and at the same time the thermal conductivity value is positively influenced, while the necessary dimensional stability and functionality of the subsequently extruded seal are still achieved.
  • the homogeneous mass is finally extruded into a sealing profile which has or consists of a foamed area with a density of ⁇ 0.5 g/cm 3 , ⁇ 0.45 g/cm 3 or ⁇ 0.4 g/cm 3 , wherein the thermal conductivity of the foamed area is preferably ⁇ 0.09 W/(mK), more preferably ⁇ 0.08 W/(mK), even more preferably ⁇ 0.075 W/(mK) and even more preferably ⁇ 0.07 W/(mK) amounts.
  • the homogeneous mass is not extruded alone, but co-extruded with another homogeneous mass to form the sealing profile.
  • a sealing profile is obtained which has one or more additional foamed areas has a different density or, alternatively, has one or more non-foamed areas with a higher density.
  • the foamed area of the sealing profile obtained in this way can also be provided with a sliding coating, which increases the sliding properties of the sealing profile and, for example, makes later installation in a window or door easier.
  • the sliding coating can also be produced by extrusion, for example by co-extruding it with the homogeneous mass produced in step c) of the process according to the invention or by co-extruding it with the homogeneous mass produced in step c) of the process according to the invention and with yet another homogeneous mass triplex extruded.
  • part of the homogeneous mass obtained in step c) is formed into a corner part, which also has a density of ⁇ 0.5 g/cm 3 , preferably ⁇ 0.45 g/cm 3 and more more preferably ⁇ 0.4 g/cm 3 and a thermal conductivity ⁇ of ⁇ 0.09 W/(mK), preferably ⁇ 0.08 W/(mK), more preferably ⁇ 0.075 W/(mK) and even more preferably ⁇ 0, 07 W/(mK), and which is then connected to the sealing profile.
  • the corner part is formed in particular by a process that is selected from the group that includes compression molding and injection molding. More preferably, the corner part is then welded to the sealing profile.
  • a completely foamed system with corners can be obtained as a sealing profile and can be used in particular in window construction.
  • the corner parts used in window construction consist of soft but compact, non-foamed soft rubber or a mixture containing this and, due to the compact material, cause comparatively poor thermal insulation in the corners, which leads to large heat loss. This is avoided by the sealing profile according to the invention with the corner part, which has excellent thermal conductivity properties.
  • Sealing profile 1 has a foamed area 2, which is made from a composition containing a TPE material containing a blowing agent, the TPE material being a thermoplastic elastomer based on styrene and the foamed area having a density of ⁇ 0.5 g/cm 3 has.
  • the sealing profile 1 has another (in the Figure 1 (shown hatched) area 3, which can also be referred to as the assembly area or hardness area. This further region 3 has a greater density and therefore a higher rigidity than the foamed region 2.
  • the further region 3 can also be foamed, in particular with less blowing agent than the foamed region 2, or the further region 3 can be unfoamed.
  • the sealing profile 1 has several areas provided with a sliding coating 4 on its surface, which increase the sliding properties of the sealing profile and facilitate later installation in, for example, a window or a door.
  • Example 1 Production of a sealing profile according to the invention and determination of its density and thermal conductivity according to DIN EN 12664
  • a composition comprising a TPE material is provided, the TPE material in this case being a styrene-ethylene-butylene-styrene block copolymer (SEBS) with a hardness between 25 and 30 Shore A.
  • SEBS styrene-ethylene-butylene-styrene block copolymer
  • a blowing agent containing isopentane known and available under the trade name EXPANCEL 092 MB 120, is added to this composition.
  • the proportion of blowing agent, based on the composition containing the TPE material, is 3-9% by weight.
  • Both the composition containing the TPE material and the blowing agent are in granular form and are fed to a screw extruder via a weight-controlled metering unit.
  • the homogeneous mass is then extruded into a sealing profile 1 according to the invention. Since in this case only a single homogeneous mass is extruded, in this case the sealing profile 1 consists of the foamed area 2. However, it is also possible to co-extrude further homogeneous masses with the aforementioned homogeneous mass in order to create a sealing profile 1 with at least to obtain another area 3 with a different density.
  • a heat flow flows through the test plates and the thermal conductivity is determined based on the electrical power, the average temperature difference between the sample surfaces and the dimensions of the test plates.
  • Table 1 The measurement results of the test panels at an ambient temperature of 20.0 °C are shown in Table 1 below.
  • Table 1 Measurement results of test panels made from the material of a sealing profile according to the invention Measurement no.
  • Mean temperature of the sample surface Average temperature difference Mean temperature of the samples Heat flux density Thermal resistance R thermal conductivity ⁇ plate side plate side °C °C K °C W/ m2 m 2 ⁇ K/W W/(m K) 1 19.2 0.5 18.6 9.9 31.0 0.599 0.0641
  • a thermal conductivity ⁇ of 0.0641 W/(mK) was determined. Furthermore, a density of the material of 0.378 g/cm 3 was calculated from the measurement results.
  • FIG. 3 Another embodiment of a sealing profile 1 according to the invention with corner part 5 is shown in the lower left part.
  • This consists of the corner part 5 shown in the upper left part of the figure and the extruded profile 1 shown in the lower right part of the figure.
  • the corner part 5 and the profile 1 have identical cross sections in their external shapes.
  • the extruded profile 1 has cavities. Because the cross sections of the profile 1 and the corner part 5 are identical in their external shapes, they can be arranged on top of each other with a precise fit and connected to one another, for example welded.

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  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
EP23186806.8A 2022-07-20 2023-07-20 Joint d'étanchéité pour la construction de fenêtres et de façades Pending EP4310290A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102022118186 2022-07-20

Publications (1)

Publication Number Publication Date
EP4310290A1 true EP4310290A1 (fr) 2024-01-24

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EP23186806.8A Pending EP4310290A1 (fr) 2022-07-20 2023-07-20 Joint d'étanchéité pour la construction de fenêtres et de façades

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69808248T2 (de) 1997-02-21 2003-08-07 Dsm Nv Geschäumter thermo-elastischer gegenstand
EP2369116B1 (fr) 2010-03-23 2017-03-22 SCHÜCO International KG Profil d'étanchéité
EP3577167B1 (fr) 2017-01-31 2021-06-23 Semperit AG Holding Mélange de matériaux pour un profilé d'étanchéité
EP3845584A1 (fr) * 2018-10-08 2021-07-07 Soo Jung Lee Composition de mousse extrudée à élasticité élevée
US20220177684A1 (en) 2019-06-13 2022-06-09 Exxonmobill Chemical Patents Inc. Automotive Weather Seals Formed with Thermoplastic Vulcanizate Compositions
EP4086420A1 (fr) * 2021-05-06 2022-11-09 SCHÜCO International KG Profilé d'étanchéité, ainsi que châssis dormant et cadre de battant

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69808248T2 (de) 1997-02-21 2003-08-07 Dsm Nv Geschäumter thermo-elastischer gegenstand
EP2369116B1 (fr) 2010-03-23 2017-03-22 SCHÜCO International KG Profil d'étanchéité
EP3577167B1 (fr) 2017-01-31 2021-06-23 Semperit AG Holding Mélange de matériaux pour un profilé d'étanchéité
EP3845584A1 (fr) * 2018-10-08 2021-07-07 Soo Jung Lee Composition de mousse extrudée à élasticité élevée
US20220177684A1 (en) 2019-06-13 2022-06-09 Exxonmobill Chemical Patents Inc. Automotive Weather Seals Formed with Thermoplastic Vulcanizate Compositions
EP4086420A1 (fr) * 2021-05-06 2022-11-09 SCHÜCO International KG Profilé d'étanchéité, ainsi que châssis dormant et cadre de battant

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