EP0866780A1 - Produit a base de laine de roche thermoresistante - Google Patents

Produit a base de laine de roche thermoresistante

Info

Publication number
EP0866780A1
EP0866780A1 EP96943960A EP96943960A EP0866780A1 EP 0866780 A1 EP0866780 A1 EP 0866780A1 EP 96943960 A EP96943960 A EP 96943960A EP 96943960 A EP96943960 A EP 96943960A EP 0866780 A1 EP0866780 A1 EP 0866780A1
Authority
EP
European Patent Office
Prior art keywords
mineral wool
fibers
wool product
product according
particles
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.)
Withdrawn
Application number
EP96943960A
Other languages
German (de)
English (en)
Inventor
Hans Kummermehr
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.)
Saint Gobain Isover SA France
Original Assignee
Saint Gobain Isover SA France
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Saint Gobain Isover SA France filed Critical Saint Gobain Isover SA France
Publication of EP0866780A1 publication Critical patent/EP0866780A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C13/00—Fibre or filament compositions
    • C03C13/06—Mineral fibres, e.g. slag wool, mineral wool, rock wool
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
    • C03C25/10—Coating
    • C03C25/465—Coatings containing composite materials
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
    • C03C25/10—Coating
    • C03C25/465—Coatings containing composite materials
    • C03C25/47—Coatings containing composite materials containing particles, fibres or flakes, e.g. in a continuous phase
    • 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
    • E04B1/92—Protection against other undesired influences or dangers
    • E04B1/94—Protection against other undesired influences or dangers against fire

Definitions

  • the present invention relates to a temperature resistant mineral wool product particularly comprised of glass fibers.
  • Mineral wool products are i.a. used for thermal insulation. In particular they are also used in the form of fire protection elements .
  • the invention is based on the insight that an increased temperature resistance of a mineral wool product can be obtained by applying substances favoring crystallisation of the individual vitreous fibers onto the fibers while the latter are in a cold state.
  • the subject matter of the invention thus is a mineral wool product in particular comprised of glass fibers, which is characterised in that fine inorganic particles are added onto the fibers of at least an outer layer of the products while the fibers are in the non-plastic state, with these fine inorganic particles favoring a crystallisation tendency of the fibers when the product is exposed to heat.
  • the particles are applied on the fibers of the product already having its final dimensions in an aftertreatment by means of a foam impregnation process, with inorganic oxides, hydroxides and/or silicates particularly being used as these particles.
  • Foam impregnation is, for example, described in DE 44 35 918 the disclosure of which is herewith incorporated by way of reference.
  • foam impregnation of the mineral wool product surface it is possible to purposely add a defined amount of the particles on fibers which are directly exposed to the elevated temperature loads. Particularly in the case of these fibers, crystallisation is required in order to increase their temperature resistance.
  • particles comprising aluminum oxide, aluminum silicates, kaolinite, china clay and/or aluminum hydroxide was found to be particularly advantageous.
  • the average grain size of particles is preferably less than 10 ⁇ m, in particular less than 1 ⁇ jTt, with application of these particles on the outer layer(s) of a mineral wool product being possible by any known methods such as e.g. impregnation, spraying and coating.
  • the particles are preferably provided in an amount between 1 and 20 kg/m 3 .
  • the particles are present on the surface of the mineral wool product in an amount between 30 and 200 g/m 2 , preferably in an amount between 70 and 100 g/m 2 .
  • the additional binding agent preferably comprises inorganic substances such as silica sol and waterglass.
  • Mineral fibers having a composition wherein the difference between the sum of amounts in weight per cent of oxides of sodium, potassium, calcium, magnesium, barium and possibly boron and twice the amount in weight per cent of aluminum oxide is at least 25, preferably at least 40, can preferably be used for the measures according to the invention in order to increase the temperature resistance thereof.
  • the mineral wool product has the form of boards for fire doors .
  • Crystallisation of the fibers implies the formation of nuclei from which crystallisation starts out to propagate within the fibers.
  • the crystallisation rate depends in a considerable degree on the number of nuclei, temperature, and time.
  • fine inorganic particles are thus added onto the fiber surfaces, preferably by foam impregnation.
  • softening of the fibers is prevented by the fact that on the one hand, the added particles themselves have higher melting points than the glass fibers, and on the other hand heat transfer is delayed, which favors the crystallisation tendency of the fibers.
  • Another advantage resides in the fact that it is sufficient if the application of particles on fibers in a mineral wool product according to the present invention is performed to a depth of approx. 1 mm from the product surface. Starting out from the fibers to which particles were added, crystallisation continues in a direction towards the interior of the mineral wool product such far that temperature resistance can be attained at least in a section of the mineral wool product.
  • the mineral fiber used had the following composition in weight per cent:
  • This mineral fiber while in the cold state, was provided on its surface with a material comprising the following components: 1.3 % stabiliser
  • This impregnation was applied as a foam in an amount of 150 g/m 2 with an average grain size of the china clay of 0.1 ⁇ m.
  • the sample thus prepared was subjected to a fire resistance test inside a small flame furnace, wherein the temperature increase was measured on the side facing away from the flame.
  • the mineral fiber used had the following composition in weight per cent:
  • This mineral fiber was provided at its surface with the same material and with the same amount as in Example 1.
  • the like mineral wool products may particularly be used as fire protection elements in fire doors.
  • the mineral fibers used are physiologically decomposable, further fields of application are advantageously open to them.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Architecture (AREA)
  • Composite Materials (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Glass Compositions (AREA)
  • Laminated Bodies (AREA)
  • Paper (AREA)

Abstract

L'invention a trait à un produit à base de laine de roche thermorésistante, notamment constitué de fibres de verre, se caractérisant par l'adjonction de fines particules inorganiques sur les fibres d'au moins une couche externe revêtant les produits alors que celles-ci en sont au stade non plastique. Ces fines particules inorganiques favorisent une tendance à la cristallisation de ces fibres lorsque ledit produit est exposé à la chaleur.
EP96943960A 1995-12-15 1996-12-13 Produit a base de laine de roche thermoresistante Withdrawn EP0866780A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19546979A DE19546979A1 (de) 1995-12-15 1995-12-15 Temperaturbeständiges Mineralwolleprodukt
DE19546979 1995-12-15
PCT/EP1996/005622 WO1997022565A1 (fr) 1995-12-15 1996-12-13 Produit a base de laine de roche thermoresistante

Publications (1)

Publication Number Publication Date
EP0866780A1 true EP0866780A1 (fr) 1998-09-30

Family

ID=7780288

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96943960A Withdrawn EP0866780A1 (fr) 1995-12-15 1996-12-13 Produit a base de laine de roche thermoresistante

Country Status (6)

Country Link
EP (1) EP0866780A1 (fr)
CZ (1) CZ181698A3 (fr)
DE (1) DE19546979A1 (fr)
PL (1) PL327340A1 (fr)
TR (1) TR199801100T2 (fr)
WO (1) WO1997022565A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1115671A1 (fr) * 1998-09-24 2001-07-18 Rockwool International A/S Fabrication de produits de laine min rale
DE69914501T2 (de) * 1998-09-24 2004-11-04 Rockwool International A/S Synthetische glasfaserprodukte für wärmeisolierung und deren herstellung
GR1003563B (el) * 2000-06-01 2001-03-22 Caretta Interiors �.�. Συστημα πυρανθεκτικων και ηχομονωτικων πετασματων για επενδυση εσωτερικων χωρων πλοιων
DE102005036029A1 (de) * 2005-07-28 2007-02-01 Klevers Gmbh & Co. Kg Brandschutzgewebe
GB201523032D0 (en) * 2015-12-29 2016-02-10 Knauf Insulation Doo Skofja Loka Insulation panel
GB201812237D0 (en) * 2018-07-27 2018-09-12 Knauf Insulation Doo Skofja Loka Composite fibre panel
US20240043320A1 (en) * 2020-12-15 2024-02-08 Nippon Sheet Glass Company, Limited Reinforcing glass fiber, chopped strand, fiber sheet, and rod
FR3166644A1 (fr) * 2024-09-25 2026-03-27 Irt Antoine De Saint Exupéry Matériau résistant au feu et son utilisation pour la protection d’un substrat

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1029725B (de) * 1954-01-27 1958-05-08 Owens Corning Fiberglass Corp Bindemittel fuer Glasfasern
US3286785A (en) * 1965-05-24 1966-11-22 Owens Corning Fiberglass Corp High temperature resistant acoustical board
CH610926A5 (fr) * 1976-06-04 1979-05-15 Battelle Memorial Institute
DE2804069C2 (de) * 1978-01-31 1986-02-27 Bernd Dipl.-Chem. Dr. 6700 Ludwigshafen Steinkopf Verfahren zur Herstellung von nicht-brennbaren Mineralfaserfilzen oder -platten
DE3248661A1 (de) * 1982-12-30 1984-07-05 Grünzweig + Hartmann und Glasfaser AG, 6700 Ludwigshafen Hitzebestaendig beschichtetes bauteil
DE4212842C2 (de) * 1992-04-16 1995-09-07 Gruenzweig & Hartmann Nadelfilz mit Deckschicht sowie Verfahren zu dessen Herstellung
FR2690438A1 (fr) * 1992-04-23 1993-10-29 Saint Gobain Isover Fibres minérales susceptibles de se dissoudre en milieu physiologique.
DE4313435A1 (de) * 1993-04-27 1994-11-03 Gruenzweig & Hartmann Wasserfest beschichtete Dämmplatte
DE4435918A1 (de) * 1994-10-07 1996-04-18 Gruenzweig & Hartmann Mineralwolleprodukt, Verfahren zu seiner Herstellung, Imprägnierungsmasse hierfür sowie deren Verwendung
EP0728124B2 (fr) * 1993-11-11 2000-12-27 Grünzweig + Hartmann AG Produit en laine minerale, son procede de production, matiere de revetement et son utilisation
ATE167849T1 (de) * 1993-11-11 1998-07-15 Saint Gobain Isover Mineralwolleprodukt, sowie verfahren zu seiner herstellung, beschichtungsmasse hierfür und deren verwendung
DE4417230A1 (de) * 1994-05-17 1995-11-23 Gruenzweig & Hartmann Mineralfaserzusammensetzung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9722565A1 *

Also Published As

Publication number Publication date
WO1997022565A1 (fr) 1997-06-26
CZ181698A3 (cs) 1999-05-12
DE19546979A1 (de) 1997-07-03
TR199801100T2 (en) 1998-10-21
PL327340A1 (en) 1998-12-07

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