EP2246492B1 - Revêtement d'éléments de fixation - Google Patents

Revêtement d'éléments de fixation Download PDF

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Publication number
EP2246492B1
EP2246492B1 EP10401054.1A EP10401054A EP2246492B1 EP 2246492 B1 EP2246492 B1 EP 2246492B1 EP 10401054 A EP10401054 A EP 10401054A EP 2246492 B1 EP2246492 B1 EP 2246492B1
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EP
European Patent Office
Prior art keywords
use according
coating
fixing elements
coating composition
elements
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.)
Not-in-force
Application number
EP10401054.1A
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German (de)
English (en)
Other versions
EP2246492A2 (fr
EP2246492A3 (fr
Inventor
Christian Schlenk
Martin Vogel
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.)
Fischerwerke GmbH and Co KG
Original Assignee
Fischerwerke GmbH and Co KG
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Publication date
Application filed by Fischerwerke GmbH and Co KG filed Critical Fischerwerke GmbH and Co KG
Publication of EP2246492A2 publication Critical patent/EP2246492A2/fr
Publication of EP2246492A3 publication Critical patent/EP2246492A3/fr
Application granted granted Critical
Publication of EP2246492B1 publication Critical patent/EP2246492B1/fr
Not-in-force legal-status Critical Current
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/88—Curtain walls
    • E04B2/96—Curtain walls comprising panels attached to the structure through mullions or transoms
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/003—Balconies; Decks
    • E04B1/0038—Anchoring devices specially adapted therefor with means for preventing cold bridging

Definitions

  • the invention relates to the use of curable organic, inorganic or inorganic-organic compositions for heat-insulating coating of fasteners in the construction sector, wherein an effect of the fasteners is reduced as cold bridges by applying the pressure-resistant and heat-insulating after curing and a continuous matrix and / or a void content having coating compositions, at least on partial surfaces of such fasteners such that they form a coating there.
  • German Utility Model Proposal beats DE 20 2007 003 903 U1 at least one of the components is made of plastic with appropriate anchoring systems for facades in the form of consoles.
  • the disadvantage here may be that not all plastics have suitable strengths and durability.
  • the DE 202 80 012 U1 suggests the use of rubber seals and / or non-conductive, plastic connecting webs as the heat conduction reducing parts for bridging. Also, applying soft materials such as sponge rubber, chloroprene, cork or the like to other elements for insulation is discussed. Here, however, for example, the retaining bolts used remain as heat-conducting bridges, and again, the materials used (rubber, plastics) for durability and durability requirements may be insufficient.
  • the EP 0 791 698 provides for the interposition of butyl tape insulators with a heat radiation reflective coating.
  • the design of the attachment must be strongly adapted to the usability of the insulating.
  • the DE 199 47 912 describes fasteners and pressure elements which comprise a thermally insulating material. Either these elements are made entirely of a heat-insulating material (eg glass fiber reinforced), or they contain separate insulating blocks, which isolate two interlocking holding parts from each other and are loaded on train.
  • a heat-insulating material eg glass fiber reinforced
  • the DE 10 2007 027 653 describes a material for making fire-resistant boards or heat-resistant coatings that can be applied to substrates, pipes, ducts or ventilation ducts.
  • a solid material not as a coating, is exemplified, and the description raises doubts that a fire-resistant coating is possible because of the use of non-fireproof paste.
  • thermal insulation panels used for thermal insulation by means of adhesive mortar and / or by means of mechanical holding elements, such as screwed in wall plugs stainless steel screws or hammered together with a dowel stainless steel nails, are attached to the building wall.
  • the DE 10 2007 046 986 A1 describes methods for producing a thermal insulation panel and a wall element based on a thermal insulation element. For fastening of the wall element is provided that support bolts are used.
  • the DE 10 2005 025 600 A1 relates to a fastener in the manner of a dowel for fixing an insulating layer on an outer wall, wherein the anchor plate of the fastener has a respect to the outer cover layer sound-insulating thin intermediate layer to avoid the effect of the fastener as a sound bridge.
  • the object of the invention was to provide new methods and methods in order to reduce or prevent additional work during the assembly of fasteners in the construction sector.
  • the invention now proposes, in a first embodiment, the use of curable organic, inorganic or inorganic-organic compounds for heat-insulating coating of fasteners in the construction sector that an effect of the fasteners is reduced as cold bridges by applying the pressure-resistant and heat-insulating after curing and a continuous Matrix and / or a void fraction having coating compositions at least on partial surfaces of such fasteners such that they form a coating there, characterized in that the fasteners are precoated at least before installation with a coating material.
  • coated fasteners can be made according to the invention and offered and used in prefabricated form, which allows a particularly precise coating.
  • Hardenable organic, inorganic or inorganic-organic compositions for heat-insulating cover are understood to mean those compositions which harden chemically and / or physically after application to the fastening element to be coated, in particular by cooling (for example in the case of castable thermoplastics after heating), Drying (eg evaporation of a solvent) or in particular chemical reaction (as in the case of inorganic materials chemical conversion, crystallization, interfacial reactions, precipitation or the like or in the case of organic materials (synthetic resins and / or dispersion resins) or some inorganic materials such as silica or salts thereof polycondensation, Polymerization or polyaddition, ie formation of polymers from smaller molecules).
  • cooling for example in the case of castable thermoplastics after heating
  • Drying eg evaporation of a solvent
  • chemical reaction as in the case of inorganic materials chemical conversion, crystallization, interfacial reactions, precipitation or the like or in the case of organic materials (
  • these compositions contain organic, inorganic or inorganic-organic compounds.
  • Organic compounds are for example fusible and thus e.g. castable thermoplastics, solvent-evaporable, coatable plastic solutions or dispersions, such as lacquers, or in particular synthetic resins, such as polyurethane, epoxy, vinylester, vinylesterurethane, unsaturated polyester resins, other olefin (eg methacrylate or acrylate, styrene, vinyltoluene or the like), Siloxane (such as alkoxysilane), or other reactive resins whose low molecular weight components (which should not exclude prepolymers or oligomeric constituents) with polyisocyanate or without the addition of catalysts cure (eg polycondensation, polyadd Schl or otherwise (eg radically) polymerize) or suitable mixtures of two or more thereof.
  • Reactive dispersions are also possible, for example those as in EWO 2007/054148, incorporated herein by reference, particularly in this regard.
  • inorganic masses are, for example hydraulically (eg cement, such as Portland cement, gypsum, hydraulic lime, pozzolans, filter ash or the like - here means “hydraulic” with or under water curing, with “air binder”, such as magnesia binder, whitewash, anhydrite , Soralzement or the like are possible), latent hydraulic (setting only after the action of exciters, for example, blast furnace slag) or by polycondensation (such as silica or water glass) curing (setting) substances or mixtures suitable (preferably after addition of water to dry matter or im Case of water glass, for example, by acid addition) cure.
  • inorganic thermosetting materials such as calcium hydrosilicates, such as in DE 10 2007 027 653 mentioned type, which is hereby incorporated by reference, are possible as a starting material for the formation of the continuous matrix.
  • Mixed inorganic-organic compounds may include both inorganic and organic curable components, for example, as we just mentioned above.
  • Continuous matrix means that the corresponding cured materials have a matrix in which all components are continuously connected and in contact by covalent, van der Waals, ionic or other bonding, similar to a solvent in which other "discontinuous" materials are dissolved or dispersed.
  • this matrix need not be continuous in the sense that there is a "one-molecular" matrix.
  • the contact of the ingredients need not be in all directions in all directions - for example, there may be internal surfaces (eg, voids, particles or other discontinuous components) in which only the portion of the component that does not face the surface is in contact with other constituents of the matrix.
  • the proportion of the matrix (including further customary additives present therein) in% by weight of the coating composition, when applied, is preferably in the range from 10 to 99.5%, preferably from 50 to 98% by weight.
  • Pressure-resistant means preferably that the compressive strength of the coating compositions after curing is at least 1 MPa, preferably at least 10 MPa, in particular> 20 MPa, such as 40 or 50 MPa.
  • the compressive strength is measured according to DIN 1048 Part 5 on cubes of edge length 15 mm.
  • Heat-insulating means, in the first place, that the thermal conductivity is 0.3 W / m ⁇ K or less, preferably 0.2 W / mK or less, more preferably 0.15 or less, e.g. 0.09 W / mK.
  • Having void content means that embedded within the matrix are voids formed by foaming (especially during the coating and initial curing process) and / or by additions in the form of voids forming materials.
  • Foaming can be effected, for example, by release of gases.
  • the coating composition may be expelled from a pressurized container in which it is expelled in the presence of a suitable propellant, such as a gaseous hydrocarbon at room temperature, the froth gas providing foaming, or carbon dioxide may be inorganic carbonates or bicarbonates, such as calcium carbonate or alkali carbonates , in the presence of acids (for example, organic carboxylic acids whose acidity only occurs when wetted with an aqueous solvent or after being released from a microencapsulation) or in the presence of water from isocyanates, the are used, for example, to form polyurethanes, polyureas, polythiourethanes or polythioureas of the continuous matrix), and thus provide foaming of the corresponding coating composition.
  • a suitable propellant such as a gaseous hydrocarbon at room temperature
  • carbon dioxide may be inorganic carbonates or bicarbonates, such as calcium carbonate
  • Cavities forming materials are, for example, expanded polystyrene particles, hollow ceramic microspheres (for example, aluminum silicate-based), hollow microspheres, hollow glass beads, expanded perlite, expanded glass, expanded mica, expanded slate, expanded clay, sintered hard coal fly ash, pumice, fibers (for example rock wool) with cavities or the like. Even with open-pore materials cavities can be preserved, in particular if the material for the continuous matrix can only poorly wet the pore-enclosing materials, for example because of low affinity or too high viscosity of the matrix material.
  • Glass, plastic or ceramic, in particular glass or ceramic, hollow microspheres are particularly preferred, for example as in the DE 10 2005 010 307 described in particular herein by reference.
  • the size of the hollow microspheres may be, for example, from 0.002 to 5 mm, for example from 0.01 mm to 3 mm.
  • the void fraction (proportion of the voids in the total volume) in the hardened mass is from 0.2 to 95% by volume, for example from 10 to 70% by volume.
  • the amount of voids forming material may be between 0.2 to 50, e.g. 0.5 to 30, for example 1 to 10%,% by weight.
  • coating compositions are applied to at least portions of such fasteners so that they form a coating there, means that not the entire fastener must be surrounded by such coatings - it may also be sufficient that only contact areas are coated with other parts, between them a heat transfer should be reduced or prevented.
  • the coating composition can be bonded in a material-locking manner (eg via molecular and atomic interactions at the binding areas), positively (for example by enclosing protrusions, round parts, threads, catch elements or the like) and / or non-positively (for example by expansion into cavities or shrinkage during curing, each with the formation of stresses) to be connected to the fastener or be.
  • a material-locking manner eg via molecular and atomic interactions at the binding areas
  • positively for example by enclosing protrusions, round parts, threads, catch elements or the like
  • non-positively for example by expansion into cavities or shrinkage during curing, each with the formation of stresses
  • substantially cohesive means that the coating primarily or preferably only direct atomic and molecular interactions between the coating material and the surface of the coated fastener for the connection of the coating and the surface provide. In addition to the material connection but then can also form-fitting (for example, in the enclosure of protrusions or threads) or less traction (for example, when shrinking during curing coatings) play a role.
  • the coating compositions cure by themselves, or heat treatment (annealing) may be applied to matrix materials which promote cure, for example at temperatures up to 250 ° C, e.g. from 70 to 200 ° C.
  • the fact that the effect of the fastening elements is reduced (as far as practically prevented) as cold bridges means in the first place that the thermal conductivity is reduced via the fastening element in the connection region compared to that without coating, for example at least halved, preferably by a factor of four or more.
  • anchoring elements such as bolts, screws or plug-in anchors, so may be meant.
  • the fastening elements consist of a good heat-conducting material, which thus without coating an undesirable cold bridge between areas of different Temperature would form, in particular of metal, such as iron (eg cast iron) or the like, or of metal alloys, such as steel, brass, aluminum alloys or the like.
  • additives and additives may be included, such as (preferably pressure-resistant, for example, if the compressive strength of the matrix otherwise not sufficient overall) fillers inorganic (eg mineral, such as limestone, corundum or quartz sand ) and / or organic (eg polymer-based) type (eg in a proportion of 0 to 75 wt .-%, eg 0 to 50 wt .-%), wetting agents, defoamers (in particular, if no foaming is intended by foaming), foam stabilizers ( in particular, if at least foaming is also intended for cavitation), preservatives, thixotropic agents, thickeners, plasticizers, solvents (less preferred) reactive diluents, retarders, accelerators, voidless fibers, pigments, dyes, light or UV stabilizers, modifiers, stabilizers, sealants , Fragrances, K analyzers
  • inorganic eg mineral, such as limestone, corundum or quartz sand
  • coated fasteners can be made according to the invention and offered and used in prefabricated form, which allows a particularly precise coating.
  • the invention also relates to the use of curable organic, inorganic or inorganic-organic compositions for heat-insulating coating of fasteners in the construction sector, that an effect of the fasteners is reduced as cold bridges by applying the pressure-resistant and heat-insulating after curing and a continuous matrix and / or a Cavity containing coating compositions, at least on sub-surfaces of such fasteners such that they form a coating there, characterized in that the fasteners are pre-coated prior to installation with one of these coating compositions, wherein the coating additionally in a hole, eg Borehole, by the introduced there coating compound, which is also used as a chemical anchor, by introducing a fastener, e.g. An anchor rod or a bolt is made.
  • a fastener e.g. An anchor rod or a bolt
  • the coating composition can be used as a multi-component system, in particular a two-component system.
  • two (or more) components such as curable organic, inorganic or inorganic-organic mass on the one hand and hardener (eg catalyst, initiator or water) on the other hand, with or without other additives, in spatially separate containers, for example in the form of a kit, for example, of multi-chamber cartridges (preferably with static mixer for mixing the components by expressing directly in the application) housed and mixed for use directly before or during coating, for example by mixing or mixing by hand with aids such as stirrers or the like.
  • the coating compositions according to the invention can also be used as one-component systems, for example with encapsulated catalysts or if they cure only on heating or if they are cured by contact with air (eg also with atmospheric moisture) or by electromagnetic radiation (eg light or UV radiation) or dissolving or dispersing agent-containing masses (eg water-based), which harden by evaporation of the solvent or dispersing agent.
  • air eg also with atmospheric moisture
  • electromagnetic radiation eg light or UV radiation
  • dissolving or dispersing agent-containing masses eg water-based
  • two or more of these variants can be realized in a one-component system.
  • the coating composition is advantageous for the coating composition to be in the form of foam forming the cavities. This allows e.g. a filling in within forms.
  • the coating composition includes the cavities forming open and / or closed pore structure materials, especially hollow spheres, e.g. then the volume and the thickness of the coating material are particularly well defined.
  • the cavities after curing of the coating composition with a gas such as carbon dioxide or a propellant gas, or a gas mixture, such as air, are filled, in particular with air or carbon dioxide.
  • the coating by brushing (for example by means of brushes, rollers, spatulas, doctor blades or the like), by spraying or spraying (for example by means of airless sprayers, spray guns, eg via nozzles or hoses) or by casting (for example in molds that at the locations of the fastener to be coated, have cavities, so that can be applied to a fastener in the mold) of the fasteners happens.
  • brushing for example by means of brushes, rollers, spatulas, doctor blades or the like
  • spraying or spraying for example by means of airless sprayers, spray guns, eg via nozzles or hoses
  • casting for example in molds that at the locations of the fastener to be coated, have cavities, so that can be applied to a fastener in the mold
  • a preferred variant according to the invention relates to a preceding or subsequent use according to the invention, wherein the fastening elements are pressure and / or tension and / or bending tension-dissipating elements.
  • methods and fastening elements whose coating has a void content after curing of the coating composition at 0.2 to 95% by volume, for example at 10 to 70% by volume, in particular from 10 to less than 30 or more than 30 to 50% by volume, for example from 20 to 28 or from 32 to 45% by volume.
  • the thickness of the coating after curing is particularly preferably 0.1 to 100 mm, in particular 0.5 to 3 mm, 3 to 5 mm or 5 to 10 mm.
  • a use according to the invention characterized in that it is in accordance with the invention coated fasteners to fasteners for curtain walling, cladding, skylights, conservatories, sound walls, exhibition stands, carports or the like, especially for facades or cladding, the fasteners when installed directly or via one or more other fasteners with a supporting part, such as Wall or a post or post profile, and a held component, such as a console part (which is preferably at least on in contact with other (especially heat-conducting) parts and / or the base passing surfaces according to the invention coated or), a facade part or a Holding profile, are connected.
  • a console part which is preferably at least on in contact with other (especially heat-conducting) parts and / or the base passing surfaces according to the invention coated or
  • a facade part or a Holding profile are connected.
  • the method according to the invention for precoating a fastener prior to installation involves the use of curable organic, inorganic or inorganic-organic materials for the heat-insulating covering of fasteners in the construction sector, as mentioned above and below.
  • a console anchor for mounting an external facade is coated on the bearing surfaces to the inner base with a composition according to the invention in a thickness of 3-5 mm. Details can be found in the following table: component Manufacturer m [g] m [%] d [g / ml] V [ml] V [%] Beckopox EP 116 Cytec Surface Specialties 1 10 69.9 1.16 8.62 37.65 Beckopox EH 663 Cytec Surface Specialties 1 2.8 19.6 1.00 2.80 12.23 Scotchlite Glass Bubbles K1 3M 2 1.43 10.0 0.13 11.44 49.97 HDK H18 Wacker Chemie 3 0,075 0.5 2.20 0.03 0.15 14.305 100.0 22.89 100 Cube strength 40 MPa Curing at 80 ° C, 30 min, cube (15 mm x 15 mm x 15 mm), according to printing surface (225 mm 2 ), based on DIN 1048 Part 5 flow behavior 18 mm based on ISO 7390: 2002 (Boeing flow test) m
  • the coating serves as thermal insulation.
  • the console anchor shows a significantly reduced thermal conductivity (reduced effect as cold bridge) between console anchor and inner base.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Paints Or Removers (AREA)
  • Building Environments (AREA)

Claims (19)

  1. Utilisation de matières durcissables organiques, minérales ou minérales-organiques pour le revêtement calorifuge d'éléments de fixation dans le domaine de la construction, sachant qu'on empêche les éléments de fixation d'agir comme des ponts thermiques en appliquant les matières de revêtement - qui à la suite du durcissement sont résistantes à la pression et calorifuges et présentent une matrice continue et/ou une certaine proportion de cavités - au moins sur des faces partielles de tels éléments de fixation de telle sorte qu'elles y forment un revêtement, caractérisée en ce que les éléments de fixation sont pré-revêtus d'une de ces matières de revêtement au moins avant leur installation.
  2. Utilisation selon la revendication 1, sachant que les éléments de fixation sont des éléments de fixation qui relient, directement ou au moyen ou par l'intermédiaire d'un ou plusieurs éléments de liaison, une base située à l'intérieur à un élément de construction situé devant celle-ci dans l'état d'installation.
  3. Utilisation selon la revendication 1 ou la revendication 2, sachant que les éléments de fixation sont constitués de métal ou d'alliages métalliques.
  4. Utilisation selon l'une des revendications 1 à 3, sachant que la résistance à la pression des matières de revêtement à la suite du durcissement est de 1 MPa ou davantage.
  5. Utilisation selon l'une des revendications 1 à 4, sachant que la conductibilité thermique des matières de revêtement dans l'état durci est de 0,3 W/mK ou moins.
  6. Utilisation selon l'une des revendications 1 à 5, sachant que la matière de revêtement est utilisée sous forme de système à un composant ou à plusieurs composants, en particulier à deux composants.
  7. Utilisation selon l'une des revendications 1 à 6, sachant que la matière de revêtement est réalisée sous forme de mousse formant les cavités.
  8. Utilisation selon l'une des revendications 1 à 7, sachant que la matière de revêtement contient, comme matériaux formant les cavités, des matériaux avec une structure de pores ouverte et/ou fermée, en particulier des billes creuses.
  9. Utilisation selon l'une des revendications 1 à 8, sachant que les cavités sont, à la suite du durcissement de la matière de revêtement, remplis d'un gaz ou d'un mélange gazeux, en particulier d'air ou de dioxyde de carbone.
  10. Utilisation selon l'une des revendications 1 à 9, sachant que l'application sur les éléments de fixation s'effectue au pinceau, par projection, par pulvérisation ou par surmoulage.
  11. Utilisation selon l'une des revendications 1 à 10, sachant que les éléments de fixation sont des éléments détournant la compression et/ou la traction et/ou la traction par flexion.
  12. Utilisation selon l'une des revendications 1 à 11, sachant que des éléments d'ancrage pour des trous forés sont pré-revêtus de la matière de revêtement.
  13. Utilisation selon l'une des revendications 1 à 12, caractérisé en ce que la proportion de cavités à la suite du durcissement de la matière de revêtement est comprise entre 0,2 et 95 % en volume.
  14. Utilisation selon l'une des revendications 1 à 13, caractérisé en ce qu'on utilise comme matériau des matériaux de matrice à base d'acrylate qui contiennent en outre comme composant minéral des matériaux céramiques et/ou des matériaux siliciques, ou des combinaisons de ces matériaux.
  15. Utilisation selon l'une des revendications 1 à 14, caractérisé en ce qu'on utilise comme matériau de matrice des dispersions aqueuses qui contiennent en outre comme composants minéraux des matériaux céramiques et/ou des matériaux siliciques, ou des combinaisons de ces matériaux.
  16. Utilisation selon l'une des revendications 1 à 14, caractérisé en ce que l'épaisseur du revêtement à la suite du durcissement est comprise entre 0,1 et 100 mm.
  17. Utilisation selon l'une des revendications 1 à 16, caractérisé en ce qu'on applique en outre sur la matière de revêtement un revêtement réfléchissant le rayonnement thermique.
  18. Utilisation selon l'une des revendications 1 à 17, caractérisé en ce que le revêtement est effectué dans un trou par la matière de revêtement qui y est introduite, qui est utilisée en même temps comme cheville chimique, par ou avec l'introduction d'un élément de fixation dans le trou.
  19. Utilisation selon l'une des revendications 1 à 18, caractérisé en ce que les éléments de fixation sont des éléments de fixation pour des façades en rideau, des habillages de façades, des verrières, des jardins d'hiver, des cloisons antibruit, des ouvrages de salons d'exposition ou des couverts pour voitures, sachant que les éléments de fixation sont, dans l'état installé, directement ou par l'intermédiaire d'un ou plusieurs autres éléments de liaison, reliés à un élément porteur et un élément de construction maintenu.
EP10401054.1A 2009-04-24 2010-04-14 Revêtement d'éléments de fixation Not-in-force EP2246492B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200910018569 DE102009018569A1 (de) 2009-04-24 2009-04-24 Beschichtung von Befestigungselementen

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EP2246492A2 EP2246492A2 (fr) 2010-11-03
EP2246492A3 EP2246492A3 (fr) 2013-05-15
EP2246492B1 true EP2246492B1 (fr) 2015-09-23

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DE202011103201U1 (de) * 2011-06-29 2012-11-23 Raimund Beck Nageltechnik Gmbh Befestigungsmittel mit füllkörperhaltiger Beschichtung

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EP2246492A3 (fr) 2013-05-15
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