EP0928347A1 - Insulating element - Google Patents

Insulating element

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Publication number
EP0928347A1
EP0928347A1 EP97910346A EP97910346A EP0928347A1 EP 0928347 A1 EP0928347 A1 EP 0928347A1 EP 97910346 A EP97910346 A EP 97910346A EP 97910346 A EP97910346 A EP 97910346A EP 0928347 A1 EP0928347 A1 EP 0928347A1
Authority
EP
European Patent Office
Prior art keywords
coating
element according
insulating element
insulating
binder
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.)
Granted
Application number
EP97910346A
Other languages
German (de)
French (fr)
Other versions
EP0928347B1 (en
Inventor
Gerd-Rüdiger Klose
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.)
Deutsche Rockwool Mineralwoll GmbH and Co OHG
Original Assignee
Deutsche Rockwool Mineralwoll GmbH and Co OHG
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Application filed by Deutsche Rockwool Mineralwoll GmbH and Co OHG filed Critical Deutsche Rockwool Mineralwoll GmbH and Co OHG
Publication of EP0928347A1 publication Critical patent/EP0928347A1/en
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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
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
    • E04B1/78—Heat insulating elements
    • 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
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
    • E04B1/7654—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only comprising an insulating layer, disposed between two longitudinal supporting elements, e.g. to insulate ceilings
    • E04B1/7658—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only comprising an insulating layer, disposed between two longitudinal supporting elements, e.g. to insulate ceilings comprising fiber insulation, e.g. as panels or loose filled fibres
    • E04B1/7662—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only comprising an insulating layer, disposed between two longitudinal supporting elements, e.g. to insulate ceilings comprising fiber insulation, e.g. as panels or loose filled fibres comprising fiber blankets or batts
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/10—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
    • E04C2/24—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products laminated and composed of materials covered by two or more of groups E04C2/12, E04C2/16, E04C2/20
    • E04C2/243—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products laminated and composed of materials covered by two or more of groups E04C2/12, E04C2/16, E04C2/20 one at least of the material being insulating

Definitions

  • the invention relates to an insulating element with at least one mineral wool insulating board made of mineral aers, which are bound together with a binder and with at least one coating applied to a main surface of the insulating board and which has surface-active substances, in particular alkalis and / or alkaline earths, to overcome the hydrophobicity.
  • Insulating elements are to be understood here as building materials which consist either of inorganic or organic and of mixtures of the two fibers mentioned above.
  • the fibers are bound together by binders.
  • the requirement here is that such insulation elements are marked and that the marking provides as extensive information as possible about the insulation elements. For this purpose, it makes sense to apply the type of substance and the form of delivery, the intended use, the heat conductivity group, fire behavior, thickness, length, width, name and address of the manufacturer, the manufacturing plant and / or a uniform monitoring symbol as a label.
  • the relevant standards stipulate that the marking can alternatively be arranged on the packaging.
  • this procedure has the disadvantage that, after the insulation materials have been installed, identification is no longer possible or no longer possible without special specialist knowledge or extensive investigations. Usually takes place when using building materials
  • a fiber mat with a grid-like carrier material fixed on at least one main surface of the fiber mat in which a marking strip is arranged between the carrier material and the fiber mat, which is attached to the carrier material facing side has a label.
  • the disadvantage of this known fiber mat is that the identification strip is fastened by means of the carrier material, i. that is, when dismantling the fiber material, care must be taken to ensure that the carrier material and the fiber mat are not separated from one another, so that the label strip in between is provided, which only contains information of the type mentioned at the beginning.
  • Another technique provides that paints are applied to the surface of the fiber insulation, which, however, is obviously of concern to the fire prevention requirements.
  • the invention is based on the objective of creating an insulation element which, in a simple manner,
  • Properties and other, for example, manufacturer-dependent parameters can be identified and, despite its identification, can be used in a variety of ways without impairing an applied plaster layer, for example.
  • the coating has a color which differs from the color of the insulation board and which discoloration of the insulation board covers due to chemical reactions of the coating with constituents of the insulation board, in particular the binder.
  • An insulation element designed according to the invention accordingly has a colored coated surface, which is an essential design element.
  • the colored coating serves as a unique identifier for the product and thus for its manufacturer during the use test, later during assembly and after the outer wall insulation has been removed for the purpose of returning it to a building
  • the coating is mechanically worked into the main surface of the insulation board.
  • Applying a coating to a mineral wool insulation board for example for the insulation of external walls with ventilated facade cladding or for insulation boards that are used in thermal insulation composite systems, has a number of advantages.
  • the incorporation of a preferably non-flammable or flame-retardant coating mass into the surface of the fiber insulation materials first the tensile strength increases parallel to the surface. At the same time, the transverse tensile strength of an applied construction adhesive or plaster increases.
  • a coating compound for example by rotating disks, also leads to a horizontal deflection or redistribution of near-surface fibers, and thus to a smoother surface.
  • Coarser components present in the fiber mass in particular coarse fibers or spherical glass particles with spiky extensions, are broken up or rearranged. Thus, painful injuries to the skin when handling the insulation boards are largely excluded.
  • the coating Since there are always fibers in the surface of the insulation boards that are not and not sufficiently bound, the coating is either fixed in situ by the application of the coating or torn from the dressing and finely distributed over the surface and integrated there. These fibers are often aggregated into flakes. The coating thus also prevents the release of fine fibers from the fiber mass, but rather binds fine fibers adhering to the surface or only slightly incorporated in the surface zone.
  • the binder has at least partially thermosetting phenol-formaldehyde resins, in particular phenol-formaldehyde-urea.
  • phenol-formaldehyde-urea phenol-formaldehyde-urea
  • modified starch binders and mixtures of the binders mentioned above can also be used. Modified starch binders are suitable both as binders and as an additive to the formaldehyde resins mentioned above.
  • the phenol or melamine-formaldehyde resins can be other additives such as acrylates, acetates or the like Dispersions included.
  • the coating has at least predominantly thermosetting components.
  • the coating preferably has hydrophilic constituents.
  • the coating compositions in question contain surface-active substances to overcome the hydrophobicity of the fiber insulation materials, these substances in solution react directly with moist, ie. H. uncured binder concentrations.
  • Thermosetting phenol-formaldehyde-urea mixtures or the above-mentioned melamine-formaldehyde resins with or without additives are preferably used as binders, so that in the presence of alkaline earths in particular there is a colored complex formation with the phenols.
  • This color phenomenon can be used to sort out such insulation boards or to treat them separately if it is not possible to bring these color phenomena into harmless form by the colored coating and their thermal curing or drying, which may be necessary, or to make them invisible.
  • insulation elements with non-hardened resin enrichments are installed and provided with mineral plasters in particular, the phenol complexes appear as undesirable discoloration of the plaster layers, which can only be removed or covered with considerable effort. It has therefore proven to be advantageous
  • coating compositions that contain alkalis and alkaline earths.
  • the free lime has an injecting effect.
  • a further advantage of the invention is that on the surface which is smoother due to a coating and by means of hydrophilic components of the coating surface charge of the glass fibers, less dust is attracted from the ambient air flowing past.
  • This dust can contain toxic components that lead to special precautionary measures when dismantling and when using the dismantled insulation elements in the
  • This embodiment has the advantage that the coating, which is resistant to UV rays, prevents the organic binders from degrading and thus weakening the plaster adhesion, for example, from longer interruptions until the completion of the clothing or until the plaster layers are applied.
  • the coating is preferably arranged over the entire surface of the insulation board. Alternatively, it can also be provided that the coating is applied to partial areas of the
  • This, in particular, transparent layer should be designed in such a way that the coating underneath remains recognizable with regard to its identification value.
  • the insulation elements provided with a surface coating are characterized by the fact that they are provided with lines baked in the form of a line or produced by applying a color.
  • the lines can also be applied in a certain grid, for example 10 cm by 10 cm. They serve both as a graphic Element as well as a marking of the insulation elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Electromagnetism (AREA)
  • Acoustics & Sound (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Laminated Bodies (AREA)
  • Bipolar Transistors (AREA)
  • Semiconductor Integrated Circuits (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

The invention concerns an insulating element having at least one mineral wool insulating plate, bounded together with a binding agent and having at least one coating on a main surface of the insulating plate with surface-active substances, specially alkalis and/or alkaline earths to overcome hydrophoby. Said coating has a coloring differing from that of the insulating plate, which disguises discolorations of the insulating plate caused by chemical reactions of the coating with components of the insulating plate, particularly with the binding agent.

Description

DammstoffelementDam element
Die Erfindung betrifft ein Dämmstorrelement mit zumindest einer Mineralwolle-Dämmplatte aus Mineral asern, die mit einem Bindemittel miteinander gebunden sind und mit zumindest einer an einer Hauptoberfläche der Dämmplatte aufgebrachten Beschichtung, die zur Überwindung der Hydrophobie oberflächenaktive Substanzen, insbesondere Alkalien und / oder Erdalkalien aufweist .The invention relates to an insulating element with at least one mineral wool insulating board made of mineral aers, which are bound together with a binder and with at least one coating applied to a main surface of the insulating board and which has surface-active substances, in particular alkalis and / or alkaline earths, to overcome the hydrophobicity.
Baustoffe, wie hier in Rede stehende Dämmstoffelemente, die nach einer Norm hergestellt und überwacht werden, müssen beispielsweise gemäß DIN 18165, Teil I, gekennzeichnet werden. Unter Dämmstoffelementen sind hierbei Baustoffe zu verstehen, die entweder aus anorganischen oder organischen sowie aus Mischungen der beiden voranstehend genannten Fasern bestehen. Die Fasern sind durch Bindemittel itein- ander verbunden. Hierbei besteht die Anforderung, daß derartige Dämmstoffelemente gekennzeichnet werden und daß die Kennzeichnung möglichst umfangreiche Auskunft über die Dämmstoffelemente gibt. Hierzu ist es sinnvoll, Stoffart und Lieferform, Anwendungszweck, ärmeleitfähigkeitsgruppe, Brandverhalten, Dicke, Länge, Breite, Name und Anschrift des Herstellers, Herstellwerk und / oder ein einheitliches Überwachungszeichen als Kennzeichnung aufzubringen.Building materials, such as the insulation elements in question, which are manufactured and monitored according to a standard, must be labeled in accordance with DIN 18165, Part I, for example. Insulating elements are to be understood here as building materials which consist either of inorganic or organic and of mixtures of the two fibers mentioned above. The fibers are bound together by binders. The requirement here is that such insulation elements are marked and that the marking provides as extensive information as possible about the insulation elements. For this purpose, it makes sense to apply the type of substance and the form of delivery, the intended use, the heat conductivity group, fire behavior, thickness, length, width, name and address of the manufacturer, the manufacturing plant and / or a uniform monitoring symbol as a label.
In der Regel ist in den einschlägigen Normen festgelegt, daß die Kennzeichnung ersatzweise auf der Verpackung angeordnet sein kann. Diese Vorgehensweise hat jedoch den Nachteil, daß nach dem Einbau der Dämmstoffe eine Identifizierung nicht mehr oder nicht mehr ohne spezielle Fachkenntnisse oder umfassende Untersuchungen möglich ist. In der Regel findet bei der Anwendung von Baustoffen inAs a rule, the relevant standards stipulate that the marking can alternatively be arranged on the packaging. However, this procedure has the disadvantage that, after the insulation materials have been installed, identification is no longer possible or no longer possible without special specialist knowledge or extensive investigations. Usually takes place when using building materials
Gebäuden auch keine Dokumentation statt, die über Jahre archiviert wird. Bei einem geregelten Rückbau einer Anlage oder eines Gebäudes ist eine sortenreine Trennung der verschiedenen Abfall -Fraktionen wünschenswert, damit die Abfall -Fraktionen verwertet, verbrannt oder deponiert werden können. Im Zuge des zunehmenden Umweltschutzes ist zukünftig mit entsprechenden Verordnungen zu rechnen, die entsprechende Kennzeichnungen an den Baustoffen, und hier insbesondere an den Faserdämmstoffen erforderlich machen, um diesen Verordnungen und dem gesteigerten Umweltbewußtsein Rechnung zu tragen.Buildings also take no documentation that is archived for years. With a controlled dismantling of a plant or of a building, it is desirable to separate the different waste fractions by type so that the waste fractions can be recycled, incinerated or disposed of. In the course of increasing environmental protection, corresponding regulations are to be expected in the future, which will require appropriate labeling on the building materials, and in particular on the fiber insulation materials, in order to take these regulations and the increased environmental awareness into account.
In dem zur Zeit gültigen Kreislauf-Wirtschafts-Abfall- Gesetz ist bereits festgelegt, daß die Hersteller von Produkten auch die Verantwortung für die künftigen Abfälle haben. Insbesondere unter diesem Gesichtspunkt ist eine gute Identifizierbarkeit der Produkte erforderlich. Es ist deshalb wünschenswert, daß die Dämmstoffe so gekennzeichnet werden, daß sie auch nach längerer Gebrauchsdauer identifizierbar sind.The currently valid cycle-economic-waste law already stipulates that the manufacturers of products also have the responsibility for the future waste. From this point of view in particular, the products must be easily identifiable. It is therefore desirable that the insulation materials are marked so that they can be identified even after a long period of use.
Aus dem Stand der Technik, beispielsweise der DE 296 03 918 Ul ist eine Fasermatte mit einem auf mindestens einer Hauptoberfläche der Fasermatte fixierten, gitterartigen Trägermaterial bekannt, bei welcher zwischen dem Trägermaterial und der Fasermatte ein Kennzeichnungsstreifen an- geordnet ist, der an seiner dem Trägermaterial zugewandten Seite eine Beschriftung aufweist. Nachteil dieser vorbekannten Faser-matte ist jedoch, daß die Befestigung des Kennzeichnungsstreifens mittels des Trägermaterials erfolgt, d. h., daß beim Rückbau des Fasermaterials dafür Sorge getragen werden muß, daß das Trägermaterial und die Fasermatte nicht voneinander getrennt werden, so daß der dazwischen liegende Kennzeichnungsstreifen verlorgengeht , der ausschließlich Informationen der eingangs genannten Art aufweist .From the prior art, for example DE 296 03 918 U1, a fiber mat with a grid-like carrier material fixed on at least one main surface of the fiber mat is known, in which a marking strip is arranged between the carrier material and the fiber mat, which is attached to the carrier material facing side has a label. The disadvantage of this known fiber mat, however, is that the identification strip is fastened by means of the carrier material, i. that is, when dismantling the fiber material, care must be taken to ensure that the carrier material and the fiber mat are not separated from one another, so that the label strip in between is provided, which only contains information of the type mentioned at the beginning.
Eine andere Technik sieht vor, daß auf der Oberfläche der Faserdämmstoffe Farben aufgetragen werden, was jedoch hin- sichtlich der Brandverhütungsanforderungen bedenklich ist.Another technique provides that paints are applied to the surface of the fiber insulation, which, however, is obviously of concern to the fire prevention requirements.
Ausgehend von diesem Stand der Technik liegt der Erfindung die A u f g a b e zugrunde, ein Dämmstoffelement zu schaffen, das in einfacher Weise nach Beschaffenheit,Proceeding from this prior art, the invention is based on the objective of creating an insulation element which, in a simple manner,
Eigenscha ten und sonstigen, beispielsweise herstellerabhängigen Parametern gekennzeichnet werden kann und trotz seiner Kennzeichnung in vielfältiger Weise ohne Beeinträchtigung einer beispielsweise aufgetragenen Putzschicht verwendbar ist.Properties and other, for example, manufacturer-dependent parameters can be identified and, despite its identification, can be used in a variety of ways without impairing an applied plaster layer, for example.
Die L ö s u n g dieser Aufgabenstellung sieht vor, daß die Beschichtung eine Einfärbung aufweist, die von der Färbung der Dämmplatte abweicht und welche Verfärbungen der Dämmplatte aufgrund chemischer Reaktionen der Beschichtung mit Bestandteilen der Dämmplatte, insbesondere des Bindemittels abdeckt.The solution to this problem provides that the coating has a color which differs from the color of the insulation board and which discoloration of the insulation board covers due to chemical reactions of the coating with constituents of the insulation board, in particular the binder.
Ein erfindungsgemäß ausgestaltetes Dämmstoffelement weist demzufolge eine farbig beschichtete Oberfläche auf, die ein wesentliches Gestaltungselement darstellt. Die farbige Beschichtung dient einer unverwechselbaren Kennzeichnung des Produktes und damit seines Herstellers während der Gebrauchsprüfung, später bei der Montage und nach dem Rückbau der Außenwand-Dämmung zwecks Rückführung in eineAn insulation element designed according to the invention accordingly has a colored coated surface, which is an essential design element. The colored coating serves as a unique identifier for the product and thus for its manufacturer during the use test, later during assembly and after the outer wall insulation has been removed for the purpose of returning it to a building
Kreislauf irtschaft .Circular economy.
Nach einem weiteren Merkmal der Erfindung ist vorgesehen, daß die Beschichtung insbesondere mechanisch in die Haupt- Oberfläche der Dämmplatte eingearbeitet ist. Das Aufbringen einer Beschichtung auf eine Mineralwolle-Dämmplatte, beispielsweise für die Dämmung von Außenwänden mit hinterlüf- teter Fassaden-Bekleidung oder für Dämmplatten, die in Wärmedämmverbund-Systemen eingesetzt werden, hat eine Reihe von Vorteilen. Durch das Einarbeiten einer vorzugsweise nicht brennbaren oder schwer entflammbaren Beschichtungs- masse in die Oberfläche der Faserdämmstoffe wird zunächst die Zugfestigkeit parallel der Oberfläche erhöht. Gleichzeitig erhöht sich die Querzugfestigkeit eines aufgebrachten Bauklebers oder Putzes.According to a further feature of the invention it is provided that the coating is mechanically worked into the main surface of the insulation board. Applying a coating to a mineral wool insulation board, for example for the insulation of external walls with ventilated facade cladding or for insulation boards that are used in thermal insulation composite systems, has a number of advantages. The incorporation of a preferably non-flammable or flame-retardant coating mass into the surface of the fiber insulation materials first the tensile strength increases parallel to the surface. At the same time, the transverse tensile strength of an applied construction adhesive or plaster increases.
Das Einarbeiten einer Beschichtungsmasse, beispielsweise durch rotierende Scheiben, führt darüberhinaus zu einer horizontalen Umlenkung bzw. Umlagerung von oberflächennahen Fasern, somit zu einer glatteren Oberfläche. In der Fasermasse vorhandene gröbere Bestandteile, insbesondere grobe Fasern oder kugelige Glaspartikel mit stangeligen Fortsätzen werden zerbrochen bzw. umgelagert. Somit werden schmerzhafte Verletzungen der Haut bei der Handhabung der Dämmplatten weitgehend ausgeschlossen.The incorporation of a coating compound, for example by rotating disks, also leads to a horizontal deflection or redistribution of near-surface fibers, and thus to a smoother surface. Coarser components present in the fiber mass, in particular coarse fibers or spherical glass particles with spiky extensions, are broken up or rearranged. Thus, painful injuries to the skin when handling the insulation boards are largely excluded.
Da sich in der Oberfläche der Dämmplatten immer Fasern befinden, die nicht und in nicht ausreichendem Maße gebunden sind, werden diese durch das Einbringen der Beschichtung entweder in situ fixiert oder aus dem Verband gerissen und fein über die Oberfläche verteilt und dort eingebunden. Häufig finden sich diese Fasern zu Flocken aggregiert . Die Beschichtung verhindert somit auch das Freisetzen von feinen Fasern aus der Fasermasse, vielmehr aber bindet sie durch das Auftragen auf der Oberfläche anhaftende oder in der Oberflächenzone nur wenig einge- bundene Feinstfasern.Since there are always fibers in the surface of the insulation boards that are not and not sufficiently bound, the coating is either fixed in situ by the application of the coating or torn from the dressing and finely distributed over the surface and integrated there. These fibers are often aggregated into flakes. The coating thus also prevents the release of fine fibers from the fiber mass, but rather binds fine fibers adhering to the surface or only slightly incorporated in the surface zone.
Es ist ferner nach einem weiteren Merkmal der Erfindung vorgesehen, daß das Bindemittel zumindest teilweise duroplastisch aushärtende Phenol -Formaldehydharze, ins- besondere Phenol-Formaldehyd-Harnstoff aufweist. Verwendbar sind aberr auch Melamin-Formaldehydharz, modifizierte Stärkebindemittel sowie Mischungen aus den voranstehend genannten Bindemitteln. Modifizierte Stärkebindemittel eignen sich hierbei sowohl als Bindemittel als auch als Zusatz zu den voranstehend genannten Formaldehydharzen. Darüberhinaus können die Phenol- oder Melamin- Formaldehydharze weitere Zusätze, wie Acrylate, Acetate oder dgl . Dispersionen enthalten.It is further provided according to a further feature of the invention that the binder has at least partially thermosetting phenol-formaldehyde resins, in particular phenol-formaldehyde-urea. However, melamine-formaldehyde resin, modified starch binders and mixtures of the binders mentioned above can also be used. Modified starch binders are suitable both as binders and as an additive to the formaldehyde resins mentioned above. In addition, the phenol or melamine-formaldehyde resins can be other additives such as acrylates, acetates or the like Dispersions included.
Ferner ist vorgesehen, daß die Beschichtung zumindest im überwiegenden Maße thermisch aushärtende Bestandteile aufweist. Vorzugsweise weist die Beschichtung hydrophile Bestandteile auf .It is further provided that the coating has at least predominantly thermosetting components. The coating preferably has hydrophilic constituents.
Da die infragekommenden Beschichtungsmassen zur Überwindung der Hydrophobie der Faserdämmstoffe oberflächen- aktive Substanzen enthalten, reagieren diese in Lösung befindlichen Stoffe unmittelbar mit unter den Dämmstoff- Oberflächen liegenden feuchten, d. h. nicht ausgehärteten Bindemittel-Konzentrationen. Als Bindemittel werden vorzugsweise duroplastisch aushärtende Phenol-Formaldehyd- Harnstoff-Gemische oder die voranstehend genannten Melamin- Formaldehydharze mit oder ohne Zusätze verwendet, so daß es bei Vorhandensein von insbesondere Erdalkalien zu einer farbigen Komplexbildung mit den Phenolen kommt . Diese Farberscheinung kann genutzt werden, um derartige Dämmplatten auszusortieren oder sie gesondert zu behandeln, wenn es nicht gelingt, diese Farberscheinungen durch die farbige Beschichtung und ihre unter Umständen erforderliche thermische Aushärtung oder Trocknung in eine unschädliche Form zu bringen bzw. nicht sichtbar werden zu lassen. Werden Dämmstoffelemente mit nicht ausgehärteten Harzanreicherungen eingebaut und mit insbesondere Mineralputzen versehen, treten die Phenolkomplexe als unerwünschte Verfärbung der Putzschichten auf, die nur mit erheblichem Aufwand zu beseitigen oder abzudecken sind. Es hat sich daher als vorteilhaft erwiesen,Since the coating compositions in question contain surface-active substances to overcome the hydrophobicity of the fiber insulation materials, these substances in solution react directly with moist, ie. H. uncured binder concentrations. Thermosetting phenol-formaldehyde-urea mixtures or the above-mentioned melamine-formaldehyde resins with or without additives are preferably used as binders, so that in the presence of alkaline earths in particular there is a colored complex formation with the phenols. This color phenomenon can be used to sort out such insulation boards or to treat them separately if it is not possible to bring these color phenomena into harmless form by the colored coating and their thermal curing or drying, which may be necessary, or to make them invisible. If insulation elements with non-hardened resin enrichments are installed and provided with mineral plasters in particular, the phenol complexes appear as undesirable discoloration of the plaster layers, which can only be removed or covered with considerable effort. It has therefore proven to be advantageous
Beschichtungsmassen zu verwenden, die Alkalien und Erdalkalien enthalten. Bei zementhaltigen Beschichtungen wirkt sich hierbei der freie Kalk injizierend aus.To use coating compositions that contain alkalis and alkaline earths. In the case of cement-containing coatings, the free lime has an injecting effect.
Ein weiterer Vorteil der Erfindung liegt darin, daß auf der durch eine Beschichtung glatteren Oberfläche und durch hydrophile Bestandteile der Beschichtung veränderten Ober- flächenladung der Glasfasern auch weniger Staub aus der vorbeiströmenden Umgebungsluft angezogen wird. Dieser Staub kann toxische Bestandteile enthalten, die zu besonderen Vorsichtsmaßnahmen bei einem Rückbau und bei einer Verwendung der rückgebauten Dämmstoffelemente in derA further advantage of the invention is that on the surface which is smoother due to a coating and by means of hydrophilic components of the coating surface charge of the glass fibers, less dust is attracted from the ambient air flowing past. This dust can contain toxic components that lead to special precautionary measures when dismantling and when using the dismantled insulation elements in the
Kreislaufwirtschaft zwingen, wenn sie in größeren Mengen vorhanden sind.Forcing circular economy if they are available in large quantities.
Weiterhin hat es sich als vorteilhaft erwiesen, die Be- Schichtung gegen UV-Strahlen resistent auszubilden. Diese Ausgestaltung hat nämlich den Vorteil, daß die gegen UV- Strahlen beständige Beschichtung ausgehend von längeren Unterbrechungen bis zur Fertigstellung der Bekleidung oder bis zum Auftragen der Putzschichten einen Abbau der organischen Bindemittel und damit die Schwächung zum Beispiel der Putzhaftung verhindert.Furthermore, it has proven to be advantageous to make the coating resistant to UV rays. This embodiment has the advantage that the coating, which is resistant to UV rays, prevents the organic binders from degrading and thus weakening the plaster adhesion, for example, from longer interruptions until the completion of the clothing or until the plaster layers are applied.
Die Beschichtung wird vorzugsweise vollflächig auf der Dämmplatte angeordnet. Es kann aber alternativ auch vorge- sehen sein, daß die Beschichtung auf Teilbereiche derThe coating is preferably arranged over the entire surface of the insulation board. Alternatively, it can also be provided that the coating is applied to partial areas of the
Hauptoberfläche der Dämmplatte aufgebracht ist. Hierdurch können verschiedene Dämmplatten in unterschiedlicher Art und Weise gekennzeichnet werden.Main surface of the insulation board is applied. As a result, different insulation boards can be identified in different ways.
Schließlich hat es sich als vorteilhaft erwiesen, dieFinally, it has proven beneficial to
Beschichtung mit einer dünnen, insbesondere transparenten Schicht zu überdecken. Diese insbesondere transparente Schicht soll derart ausgestaltet sein, daß die darunter angeordnete Beschichtung hinsichtlich ihres Kennzeichnungs- wertes noch erkennbar bleibt.Cover the coating with a thin, in particular transparent layer. This, in particular, transparent layer should be designed in such a way that the coating underneath remains recognizable with regard to its identification value.
Charakterisiert werden die mit einer Oberflächenbeschich- tung versehenen Dämmstoffelemente einmal dadurch, daß sie mit linienförmig eingebrannten oder durch Auftrag einer Farbe hergestellten Linien versehen sind. Die Linien können auch in einem bestimmten Raster, beispielsweise 10 cm mal 10 cm aufgetragen werden. Sie dienen sowohl als grafisches Element als auch einer Kennzeichnung der Dämmstoffelemente The insulation elements provided with a surface coating are characterized by the fact that they are provided with lines baked in the form of a line or produced by applying a color. The lines can also be applied in a certain grid, for example 10 cm by 10 cm. They serve both as a graphic Element as well as a marking of the insulation elements

Claims

Ansprüche Expectations
1. Dämmstoffelement mit zumindest einer Mineralwolle- Dämmplatte aus Mineralfasern, die mit einem Bindemittel miteinander gebunden sind, und mit zumindest einer an einer Hauptoberfläche der Dämmplatte aufgebrachten Beschichtung, die zur Überwindung der Hydro- phobie oberflächenaktive Substanzen, insbesondere1. Insulating element with at least one mineral wool insulating board made of mineral fibers, which are bound together with a binder, and with at least one coating applied to a main surface of the insulating board, which is used to overcome the hydrophobicity, in particular surface-active substances
Alkalien und / oder Erdalkalien aufweist, wobei die Beschichtung eine Einfärbung aufweist, die von der Färbung der Dämmplatte abweicht und welche Verfärbungen der Dämmplatte aufgrund chemischer Reaktionen der Beschichtung mit Bestandteilen der Dämmplatte, insbesondere des Bindemittels abdeckt.Has alkalis and / or alkaline earths, the coating having a coloration which differs from the color of the insulation board and which discoloration of the insulation board covers due to chemical reactions of the coating with constituents of the insulation board, in particular the binder.
2. Dämmstoff element nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t , daß die Beschichtung insbesondere mechanisch in die Hauptoberfläche der Dämmplatte eingearbeitet ist.2. Insulating element according to claim 1, d a d u r c h g e k e n n z e i c h n e t that the coating is mechanically incorporated in particular in the main surface of the insulation board.
3. Dämmst off element nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t , daß das Bindemittel zumindest teilweise duroplastisch aushärtende Phenol-Formaldehydharze, insbesondere Phenol-Formaldehyd-Harnstoff-Gemische aufweist .3. Insulating off element according to claim 1, d a d u r c h g e k e n n e e c h n e t that the binder at least partially thermosetting phenol-formaldehyde resins, especially phenol-formaldehyde-urea mixtures.
4. Dämmstoffelement nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t , daß das Bindemittel als modifiziertes Stärkebindemittel ausgebildet ist oder zumindest als Zusatz aufweist.4. Insulating element according to claim 1, d a d u r c h g e k e n n z e i c h n e t that the binder is designed as a modified starch binder or at least has an additive.
5. Dämmstoffelement nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t , daß das Bindemittel Melamin-Formaldehydharz mit oder ohne Zusatz von Phenol-Formaldehydharz aufweist.5. Insulating element according to claim 1, characterized in that the binder melamine-formaldehyde resin with or without the addition of phenol-formaldehyde resin.
6. Dämmstoff element nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t , daß das Bindemittel Dispersionen, wie Acrylat, Acetat oder dgl . aufweist .6. Insulating element according to claim 1, d a d u r c h g e k e n n z e i c h n e t that the binder dispersions, such as acrylate, acetate or the like. having .
7. Dämmst off element nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t , daß die Beschichtung zumindest im überwiegenden Maße thermisch aushärtende Bestandteile aufweist.7. Insulating off element according to claim 1, so that the coating has at least predominantly thermosetting components.
8. Dämmsstoff element nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t , daß die Beschichtung hydrophile Bestandteile aufweist,8. Insulating element according to claim 1, d a d u r c h g e k e n n z e i c h n e t that the coating has hydrophilic components,
9. Dämmstoff element nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t , daß die Beschichtung gegen UV-Strahlen resiεtent ist.9. Insulating element according to claim 1, d a d u r c h g e k e n n z e i c h n e t that the coating is resistant to UV rays.
10. Dämmstoff element nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t , daß die Beschichtung vollflächig auf der Dämmplatte angeordnet ist .10. Insulating element according to claim 1, d a d u r c h g e k e n n z e i c h n e t that the coating is arranged over the entire surface on the insulation board.
11. Dämmstoffelement nach Anspruch l, d a d u r c h g e k e n n z e i c h n e t , daß die Bechichtung auf Teilbereiche der Haupt- Oberfläche der Dämmplatte aufgebracht ist.11. Insulating element according to claim l, d a d u r c h g e k e n n z e i c h n e t that the coating is applied to partial areas of the main surface of the insulation board.
12. Dämmstoff element nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t , daß die Beschichtung mit einer dünnen, insbesondere transparenten Schicht überdeckt ist. 12. Insulating element according to claim 1, d a d u r c h g e k e n n z e i c h n e t that the coating is covered with a thin, in particular transparent layer.
EP97910346A 1996-09-28 1997-09-24 Insulating element Revoked EP0928347B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE29616962U 1996-09-28
DE29616962U DE29616962U1 (en) 1996-09-28 1996-09-28 Insulation element
PCT/EP1997/005243 WO1998013542A1 (en) 1996-09-28 1997-09-24 Insulating element

Publications (2)

Publication Number Publication Date
EP0928347A1 true EP0928347A1 (en) 1999-07-14
EP0928347B1 EP0928347B1 (en) 2002-05-22

Family

ID=8029911

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EP97910346A Revoked EP0928347B1 (en) 1996-09-28 1997-09-24 Insulating element

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EP (1) EP0928347B1 (en)
AT (1) ATE217918T1 (en)
DE (2) DE29616962U1 (en)
WO (1) WO1998013542A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19808518C1 (en) * 1998-02-27 1999-08-05 Rockwool Mineralwolle Coating and impregnation of mineral wool for the production of insulation boards
EP0939173B2 (en) † 1998-02-28 2010-10-27 Deutsche Rockwool Mineralwoll GmbH & Co. OHG Process for making an insulation board from mineral fibres and insulation board
DE10100640A1 (en) * 2001-01-09 2002-07-11 Saint Gobain Isover G & H Ag Insulation material web made of mineral wool can be rolled up

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2455691C2 (en) 1974-11-25 1976-12-16 Gruenzweig Hartmann Glasfaser Mineral fiber board
CH678709A5 (en) 1989-07-14 1991-10-31 Isover S A
DE29603918U1 (en) 1996-03-02 1996-05-30 Heraklith Holding AG, Fürnitz Fiber mat

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9813542A1 *

Also Published As

Publication number Publication date
EP0928347B1 (en) 2002-05-22
DE29616962U1 (en) 1996-12-19
DE59707334D1 (en) 2002-06-27
ATE217918T1 (en) 2002-06-15
WO1998013542A1 (en) 1998-04-02

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