[go: up one dir, main page]

WO1996030314A1 - Composition de fibres minerales - Google Patents

Composition de fibres minerales Download PDF

Info

Publication number
WO1996030314A1
WO1996030314A1 PCT/EP1996/001181 EP9601181W WO9630314A1 WO 1996030314 A1 WO1996030314 A1 WO 1996030314A1 EP 9601181 W EP9601181 W EP 9601181W WO 9630314 A1 WO9630314 A1 WO 9630314A1
Authority
WO
WIPO (PCT)
Prior art keywords
mineral fiber
mineral
fiber composition
cao
mgo
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.)
Ceased
Application number
PCT/EP1996/001181
Other languages
English (en)
Inventor
Peter Lohe
Wolfgang Holstein
Wolfgang Schwab
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 G+H AG
Saint Gobain Isover SA France
Original Assignee
Gruenzweig und Hartmann AG
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 Gruenzweig und Hartmann AG, Saint Gobain Isover SA France filed Critical Gruenzweig und Hartmann AG
Priority to AU50045/96A priority Critical patent/AU5004596A/en
Publication of WO1996030314A1 publication Critical patent/WO1996030314A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • C03C13/00—Fibre or filament compositions
    • 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
    • C03C2213/00—Glass fibres or filaments
    • C03C2213/02—Biodegradable glass fibres

Definitions

  • This invention relates to a mineral fiber composition which is biodegradable.
  • Biodegradability of mineral fiber compositions is of great importance since various studies indicate that mineral fibers with very small diameters in the range of less than 3 microns are suspected to be carcinogenic, while biodegradable mineral fibers with such dimensions show no carcinogenicity.
  • mineral fiber compositions must also have good workability by known methods for producing mineral wool with a small diameter, in particular the jet process. This in ⁇ volves in particular a sufficient processing range of for ex ⁇ ample 80°C and suitable viscosity of the glass melt.
  • the mechanical and thermal properties of mineral fibers, or the products made therefrom, are also of crucial impor ⁇ tance.
  • Mineral fibers are used for example for insulating purposes to a great extent. Sufficient temperature resistance of the mineral fibers is necessary in particular for use in the industrial sector.
  • the problem of the invention is to provide a novel min ⁇ eral fiber composition which is distinguished by biodegrad ⁇ ability, has good temperature resistance and can be processed well.
  • the invention is based on the finding that this problem can be solved by a mineral fiber composition which consists substantially of silicon dioxide and alkaline-earth oxides, and further contains substantially potassium oxide as a melt ⁇ ing accelerator and a considerable proportion of aluminum ox- ide for increasing temperature resistance.
  • Such mineral fiber compositions fulfill the combination of necessary properties, namely bio- degradability, sufficient temperature resistance for insula ⁇ tion objects in industry, as well as good workability in the production of the mineral wool as such and the products.
  • the upper devitrification tempera ⁇ ture of the melt is preferably under 1320°C.
  • the mean fiber diameter is preferably 3 microns or less.
  • the inventive glass fiber compositions have considerable amounts of potassium oxide but only small amounts of sodium oxide.
  • the presence of potassium oxide produces a clear in ⁇ crease in glass viscosity and improves temperature resistance by around 40 to 50°C as compared to sodium-containing glass.
  • the subject of the invention is a mineral fiber composi ⁇ tion which is biodegradable, characterized by the following constituents in percent by weight:
  • inventive mineral fiber compositions are readily drawable in particular by the jet process, i.e. one obtains a fine, low-shot mineral wool.
  • the mineral wool reaches a high temperature resistance of at least 740°C and shows good biodegradability.
  • the inventive mineral fiber compositions can preferably be melted in melting chambers fueled with fossile fuels, in particular natural gas, at melting temperatures from 1350 to 1450°C.
  • Such melting chambers can produce a homogeneous melt, which is a prerequisite for constant product quality. Homoge ⁇ neity of the glass melt also facilitates the reproducibility of the fiberizing process and thus of the thermal and me ⁇ chanical product properties. Furthermore, the constant chemi ⁇ cal composition of the thus produced mineral wool leads to controllable biodegradability.
  • inventive mineral fiber compositions preferably have the following constituents in percent by weight:
  • Mineral fiber compositions are especially preferred with the following constituents in percent by weight: Si0 2 52 to 57
  • the thermal behavior of the mineral fibers was deter ⁇ mined by the so-called "Swedish method".
  • This method uses a silit pipe furnace with a horizontal working pipe open on both sides with a length of 350 mm and an inside diameter of 27 mm.
  • a ceramic sup ⁇ porting plate with dimensions of 30 x 20 x 3 mm for position ⁇ ing the test sample.
  • the test sample has dimensions of 12 x 12 x 12 mm or 12 mm 0 x 12 mm height.
  • the gross density is normally 100 kg/m 3 .
  • the temperature increase is 5 K/min.
  • the change in test sample height is determined continuously with a reading optic.
  • a mineral wool was produced with the following composi ⁇ tion in percent by weight:
  • This composition could be readily fiberized by the jet process at a drawing temperature between 1340 and 1400°C into mineral fibers with a mean diameter of 2.0 to 10 microns.
  • a mineral wool was produced with the following composi ⁇ tion in percent by weight: Si0 2 53.4
  • This composition could be readily processed by the jet process at a drawing temperature between 1340 and 1400°C into mineral fibers with a mean diameter of 2.0 to 10 microns.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Glass Compositions (AREA)

Abstract

La présente invention se rapporte à une composition biodégradable de fibres minérales, qui contient les composants suivants en pourcentage de poids: SiO2 45 to 60; Al2O3 0 à 3; CaO 20 à 40; MgO 3 à 15; Na2O 0 à 2; K2O 1 à 10; Na2O + K2O 1 à 12; TiO2 0 à 3; Fe2O3 0 à 3; Autres 0 à 5.
PCT/EP1996/001181 1995-03-31 1996-03-19 Composition de fibres minerales Ceased WO1996030314A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU50045/96A AU5004596A (en) 1995-03-31 1996-03-19 A mineral fiber composition

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19512145.7 1995-03-31
DE1995112145 DE19512145C2 (de) 1995-03-31 1995-03-31 Mineralfaserzusammensetzung

Publications (1)

Publication Number Publication Date
WO1996030314A1 true WO1996030314A1 (fr) 1996-10-03

Family

ID=7758469

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1996/001181 Ceased WO1996030314A1 (fr) 1995-03-31 1996-03-19 Composition de fibres minerales

Country Status (3)

Country Link
AU (1) AU5004596A (fr)
DE (1) DE19512145C2 (fr)
WO (1) WO1996030314A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0872458A1 (fr) * 1997-04-19 1998-10-21 Grünzweig + Hartmann AG Composition à fibres minérales
US6861381B1 (en) 1999-09-10 2005-03-01 The Morgan Crucible Company Plc High temperature resistant saline soluble fibres
US6987076B1 (en) 1998-09-15 2006-01-17 The Morgan Crucible Company Plc Bonded fibrous materials
US7153796B2 (en) 2002-01-04 2006-12-26 The Morgan Crucible Company Plc Saline soluble inorganic fibres
US7259118B2 (en) 1992-01-17 2007-08-21 The Morgan Crucible Company Plc Saline soluble inorganic fibers
EP1678386B2 (fr) † 2003-10-06 2020-11-18 Saint-Gobain Isover Nappe de matière isolante en feutre de fibres minérales enroulée sur un rouleau destiné à être bloqué entre poutres

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100676167B1 (ko) * 2006-01-25 2007-02-01 주식회사 케이씨씨 고온 단열재용 생분해성 세라믹 섬유 조성물

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0459897A1 (fr) * 1990-06-01 1991-12-04 Isover Saint-Gobain Fibres minérales susceptibles de se décomposer en milieu physiologique
WO1992009536A1 (fr) * 1990-11-23 1992-06-11 Paroc Oy Ab Composition a fibres minerales
FR2690438A1 (fr) * 1992-04-23 1993-10-29 Saint Gobain Isover Fibres minérales susceptibles de se dissoudre en milieu physiologique.
DE4427368A1 (de) * 1994-08-02 1996-02-08 Gruenzweig & Hartmann Mineralfaserzusammensetzung

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4417230A1 (de) * 1994-05-17 1995-11-23 Gruenzweig & Hartmann Mineralfaserzusammensetzung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0459897A1 (fr) * 1990-06-01 1991-12-04 Isover Saint-Gobain Fibres minérales susceptibles de se décomposer en milieu physiologique
WO1992009536A1 (fr) * 1990-11-23 1992-06-11 Paroc Oy Ab Composition a fibres minerales
FR2690438A1 (fr) * 1992-04-23 1993-10-29 Saint Gobain Isover Fibres minérales susceptibles de se dissoudre en milieu physiologique.
DE4427368A1 (de) * 1994-08-02 1996-02-08 Gruenzweig & Hartmann Mineralfaserzusammensetzung

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7259118B2 (en) 1992-01-17 2007-08-21 The Morgan Crucible Company Plc Saline soluble inorganic fibers
EP0872458A1 (fr) * 1997-04-19 1998-10-21 Grünzweig + Hartmann AG Composition à fibres minérales
WO1998047831A1 (fr) * 1997-04-19 1998-10-29 Isover Saint-Gobain Composition de fibres minerales biodegradable
US6987076B1 (en) 1998-09-15 2006-01-17 The Morgan Crucible Company Plc Bonded fibrous materials
US6861381B1 (en) 1999-09-10 2005-03-01 The Morgan Crucible Company Plc High temperature resistant saline soluble fibres
US7153796B2 (en) 2002-01-04 2006-12-26 The Morgan Crucible Company Plc Saline soluble inorganic fibres
US7470641B2 (en) 2002-01-04 2008-12-30 The Morgan Crucible Company Plc Saline soluble inorganic fibres
EP1678386B2 (fr) † 2003-10-06 2020-11-18 Saint-Gobain Isover Nappe de matière isolante en feutre de fibres minérales enroulée sur un rouleau destiné à être bloqué entre poutres

Also Published As

Publication number Publication date
DE19512145C2 (de) 1997-06-05
DE19512145A1 (de) 1996-10-02
AU5004596A (en) 1996-10-16

Similar Documents

Publication Publication Date Title
US4461840A (en) Heat resistant glass fiber composition
EP0710220B1 (fr) Composition de fibre minerale
US3929497A (en) Crystallizable glass suitable for fiber production
CA2023115C (fr) Composition de verre en feuille a proprietes de fonte et de trempe ameliorees
AU721117B2 (en) Mineral fiber composition
IE66323B1 (en) Glass fibres capable of decomposing in a physiological mediam
US4607015A (en) Glass composition, its method of formation and products made therefrom
Wallenberger et al. Design of environmentally friendly fiberglass compositions: ternary eutectic SiO2–Al2O3–CaO compositions, structures and properties
WO1996030314A1 (fr) Composition de fibres minerales
EP0721432B1 (fr) Composition de fibre minerale
CA2162890A1 (fr) Composition de fibre minerale
WO1996016913A1 (fr) Composition de fibre minerale
KR20000064588A (ko) 인공 광면 조성물
US3600205A (en) Boric oxide-free glass fibers and compositions for making them
KR890000726B1 (ko) 유리섬유 조성물
US10787383B2 (en) Mineral fibres
HUT77856A (hu) Ásványi szál készítmény
WO1998047831A1 (fr) Composition de fibres minerales biodegradable
SK4896A3 (sk) Zloženie minerálneho vlákna
DE19503168A1 (de) Mineralfaserzusammensetzung

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AU BR CA CN CZ FI HU IS JP KR NO NZ PL SI SK TR US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE

121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: CA