EP0268594B1 - Schalldaempfendes mineral-wolleerzeugnis und dessen herstellung - Google Patents

Schalldaempfendes mineral-wolleerzeugnis und dessen herstellung Download PDF

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Publication number
EP0268594B1
EP0268594B1 EP87902185A EP87902185A EP0268594B1 EP 0268594 B1 EP0268594 B1 EP 0268594B1 EP 87902185 A EP87902185 A EP 87902185A EP 87902185 A EP87902185 A EP 87902185A EP 0268594 B1 EP0268594 B1 EP 0268594B1
Authority
EP
European Patent Office
Prior art keywords
mineral wool
binder
wool body
water glass
sound
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.)
Expired - Lifetime
Application number
EP87902185A
Other languages
English (en)
French (fr)
Other versions
EP0268594A1 (de
Inventor
Per-Olof Lundquist
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.)
Rockwool AB
Original Assignee
Rockwool AB
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=20364034&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0268594(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Rockwool AB filed Critical Rockwool AB
Priority to AT87902185T priority Critical patent/ATE60388T1/de
Publication of EP0268594A1 publication Critical patent/EP0268594A1/de
Application granted granted Critical
Publication of EP0268594B1 publication Critical patent/EP0268594B1/de
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Classifications

    • 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
    • E04C2/16—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 of fibres, chips, vegetable stems, or the like

Definitions

  • the present invention generally relates to a mineral wool product, and more particularly the invention is directed to a mineral wool product for sound absorbing purposes and a method of manufacturing such product.
  • the ability of the mineral wool to absorb low frequence sound can be increased by giving the mineral wool a surface layer of a suitable material, e.g. a thin layer of plastic. If the plastic is sufficiently thin and elastic the ability of the mineral wool product to absorb low frequence sound is drastically increased, and still its ability of absorbing high frequence sound is not reduced by any noticable extent.
  • a suitable material e.g. a thin layer of plastic.
  • Mineral wool materials of said type having a surface covering have substantial disadvantage. Firstly the plastic foils, by means of which the mineral wool is covered are inflammable, and secondly it is technically difficult to apply the plastic film on the mineral wool, especially in narrow spaces like on the concave inner surface of a tubular insulation or similar means.
  • the actual surfaces of the mineral wool bodies are covered with a non-inflammable alkali silicate like water glsss as indicated in claims 1 and 5.
  • a suitable water glass substance is provided by EKA under the trade name "Bindizil FK10".
  • the water glass is pre-polymerized to obtain a viscosity of at least 300 IPa - s at 20°C and 50% dry matter content.
  • the dry matter content must not be too large, and preferably the dry matter content is kept less than 40%, preferably less than 38%.
  • the amount of binder applied to the mineral wool surface is of substantial importance. On one hand the amount should be sufficient to bind all loose surface fibres, on the other hand the amount must not be so large that the binder provides an integral covering over the mineral wool body. Practical tests have proved that the amount of binder applied to the product should be between 75 and 150 g dry matter/m2 of the mineral wool surface, or preferably between 95 and 140 g/m 2.
  • the temperature during the drying or the evaporation of the solvent is important so that the surface covering substance should keep its pliability. Tests have shown that the temperature should not be higher than 120°C.
  • the binder e.g. rolling or spraying the binder.
  • rolling the binder onto the mineral wool product there is, however, a risk that loose fibres stick to the roller and in time put the result of the treatment at risk. Therefore it is recommended that the binder is sprayed on to the product.
  • the fibres of the mineral wool material are not of a hydrophobic surface character so that said fibres make it difficult or impossible to apply the binder or to obtain a correct spreading of the binder over the surface fibres.
  • the binder therefore preferably can be given a slight amount of a wetting agent, e.g. a water soluble tenside.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Wood Science & Technology (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surface Treatment Of Glass Fibres Or Filaments (AREA)
  • Building Environments (AREA)
  • Nonwoven Fabrics (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Paper (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Laminated Bodies (AREA)
  • Exhaust Silencers (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Claims (10)

1. Als Schalldämpfer geeigneter Mineralwollkörper, der Schall sowohl hoher als auch niedriger Frequenz dämpfen oder absorbieren kann, dadurch gekennzeichnet,
daß wenigstens der größte Teil der Fasern des Mineralwollköpers, die dem hoch- und niederfrequenten Schall ausgesetzt sind, mit einem Bindemittel in solchem Ausmaß und in solcher Weise überzogen sind, daß praktisch alle Fasern an der Oberfläche des Mineralwollkörpers miteinander verbunden sind, ohne daß das Bindemittel einen durchgehenden, ununterbrochenen Film bildet,
daß das Bindemittel ein nicht entflammbares Alkalisilikat-Wasserglas ist
und daß Wasserglas vorpolymerisiert ist.
2. Mineralwollkörper nach Anspruch 1, dadurch gekennzeichnet daß das Wasserglas in einer Menge von 75 bis 150 oder vorzugsweise 95 bis 140 Gramm Trockenmasse pro Quadratmeter des Mineralwollkörpers aufgebracht wird.
3. Mineralwollkörper nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Bindemittel einen geringen Anteil eines Benetzungsmittels enthält.
4. Mineralwollkörper nach Anspruch 1, oder 3, dadurch gekennzeichnet, daß der Mineralwollkörper in Form von Scheiben oder halbzylindrischen Rohem vorliegt, im Inneren eines Belüftungskanalsystems angeordnet ist und die gesamte Strömungsfläche desselben bedeckt.
5. Verfahren zur Herstellung von Mineralwollkörpern, beispielsweise von Platten oder halbzylindrischen Rohren, nach einem der vorstehenden Ansprüche, die sowohl hoch- als auch niederfrequenten Schall zu dämpfen oder zu absorbieren vermögen, dadurch gekennzeichnet, daß eine verdünnte Lösung aus vorpolymerisiertem Wasserglas auf den Mineralwollkörper aufgetragen wird, woraufhin das Lösungsmittel aus dem Wasserglas verdampfen gelassen wird und wobei das Bindemittel in einer Menge aufgebracht wird, ausreicht, um praktisch alle Fasern an der Oberfläche des Mineralwollkörpers zu binden, nachdem das Lösungsmittel verdampft ist, ohne einen durchgehenden, ununterbrochenen Bindemittelfilm zu bilden.
6. Verfahren nach Anspruch 5, dadurch gekennzeichnet, daß nur ein Teil der Oberfläche des Mineralwollkörpers, der Schall ausgesetzt ist, oberflächenbehandelt wird.
7. Verfahren nach Anspruch 5 oder 6, dadurch gekennzeichnet, daß das Wasserglas durch Sprühen oder Rollen auf den Mineralwollkörper aufgebracht wird.
8. Verfahren nach Anspruch 7, dadurch gekennzeichnet, daß das Bindemittel auf eine Viskosität von mehr als 300 mPa - s bei 20°C und einen Trockenmassegehalt von 50% vorpolymerisiert wird, bevor das Bindemittel auf den Mineralwollkörper aufgebracht wird.
9. Verfahren nach einem der Ansprüche 5 bis 8, dadurch gekennzeichnet, daß das Wasserglas vor dem Aufbringen auf die Mineralwolloberfläche auf eine Konzentration von weniger als 40% oder vorzugsweise weniger als 38% Trockenmassegehalt gebracht wird und daß das Bindemittel in einer Menge von 75 bis 150 oder vorzugsweise 95 bis 140 Gramm Trockenmasse pro Quadratmeter Mineralwollkörper aufgebracht wird.
10. Verfahren nach einem der Ansprüche 5 bis 9, dadurch gekennzeichent, daß das Lösungsmittel aus dem Wasserglas bei relativ niedriger Temperatur, vorzugsweise bei einer Temperatur kleiner 120°C, verdampfen gelassen oder getrocknet wird.
EP87902185A 1986-04-03 1987-04-01 Schalldaempfendes mineral-wolleerzeugnis und dessen herstellung Expired - Lifetime EP0268594B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87902185T ATE60388T1 (de) 1986-04-03 1987-04-01 Schalldaempfendes mineral-wolleerzeugnis und dessen herstellung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8601493 1986-04-03
SE8601493A SE458456B (sv) 1986-04-03 1986-04-03 Mineralullsprodukt samt ett foerfarande foer dess framstaellning

Publications (2)

Publication Number Publication Date
EP0268594A1 EP0268594A1 (de) 1988-06-01
EP0268594B1 true EP0268594B1 (de) 1991-01-23

Family

ID=20364034

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87902185A Expired - Lifetime EP0268594B1 (de) 1986-04-03 1987-04-01 Schalldaempfendes mineral-wolleerzeugnis und dessen herstellung

Country Status (8)

Country Link
EP (1) EP0268594B1 (de)
AT (1) ATE60388T1 (de)
DE (1) DE3767669D1 (de)
DK (1) DK160888B (de)
FI (1) FI84385B (de)
NO (1) NO165038C (de)
SE (1) SE458456B (de)
WO (1) WO1987005960A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4338619C5 (de) * 1993-11-11 2007-12-27 Saint-Gobain Isover G+H Ag Beschichtetes Mineralwolleprodukt und Verfahren zu dessen Herstellung

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE200496C1 (de)
US1966069A (en) 1932-10-26 1934-07-10 Burgess Lab Inc C F Acoustic tile and method of manufacturing the same
DK65991C (da) 1941-07-15 1947-12-01 Arki Ab Fremgangsmaade til Fremstilling af lydabsorberende Plader.
US2450911A (en) 1943-07-20 1948-10-12 Armstrong Cork Co Acoustical structure
US3111188A (en) 1960-02-26 1963-11-19 Owens Corning Fiberglass Corp Acoustical tile

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE200496C1 (de)
US1966069A (en) 1932-10-26 1934-07-10 Burgess Lab Inc C F Acoustic tile and method of manufacturing the same
DK65991C (da) 1941-07-15 1947-12-01 Arki Ab Fremgangsmaade til Fremstilling af lydabsorberende Plader.
US2450911A (en) 1943-07-20 1948-10-12 Armstrong Cork Co Acoustical structure
US3111188A (en) 1960-02-26 1963-11-19 Owens Corning Fiberglass Corp Acoustical tile

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4338619C5 (de) * 1993-11-11 2007-12-27 Saint-Gobain Isover G+H Ag Beschichtetes Mineralwolleprodukt und Verfahren zu dessen Herstellung

Also Published As

Publication number Publication date
EP0268594A1 (de) 1988-06-01
FI875260A (fi) 1987-11-27
DE3767669D1 (de) 1991-02-28
NO874916L (no) 1987-11-26
DK160888B (da) 1991-04-29
FI84385B (fi) 1991-08-15
SE8601493L (sv) 1987-10-04
NO874916D0 (no) 1987-11-26
WO1987005960A1 (en) 1987-10-08
FI875260A0 (fi) 1987-11-27
SE8601493D0 (sv) 1986-04-03
SE458456B (sv) 1989-04-03
NO165038C (no) 1990-12-12
ATE60388T1 (de) 1991-02-15
DK605187D0 (da) 1987-11-18
NO165038B (no) 1990-09-03
DK605187A (da) 1987-11-18

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