AU2612995A - A mineral-fiber composition - Google Patents
A mineral-fiber compositionInfo
- Publication number
- AU2612995A AU2612995A AU26129/95A AU2612995A AU2612995A AU 2612995 A AU2612995 A AU 2612995A AU 26129/95 A AU26129/95 A AU 26129/95A AU 2612995 A AU2612995 A AU 2612995A AU 2612995 A AU2612995 A AU 2612995A
- Authority
- AU
- Australia
- Prior art keywords
- mineral
- less
- weight
- percent
- fiber composition
- 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.)
- Abandoned
Links
- 239000002557 mineral fiber Substances 0.000 title claims description 28
- 239000000203 mixture Substances 0.000 title claims description 23
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 12
- DLYUQMMRRRQYAE-UHFFFAOYSA-N tetraphosphorus decaoxide Chemical compound O1P(O2)(=O)OP3(=O)OP1(=O)OP2(=O)O3 DLYUQMMRRRQYAE-UHFFFAOYSA-N 0.000 claims description 12
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 claims description 9
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 7
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 6
- 229910052681 coesite Inorganic materials 0.000 claims description 6
- 239000000470 constituent Substances 0.000 claims description 6
- 229910052906 cristobalite Inorganic materials 0.000 claims description 6
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 claims description 6
- 229910052682 stishovite Inorganic materials 0.000 claims description 6
- 229910052905 tridymite Inorganic materials 0.000 claims description 6
- 239000000377 silicon dioxide Substances 0.000 claims description 5
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 claims description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 3
- 229910017976 MgO 4 Inorganic materials 0.000 claims description 2
- QVQLCTNNEUAWMS-UHFFFAOYSA-N barium oxide Inorganic materials [Ba]=O QVQLCTNNEUAWMS-UHFFFAOYSA-N 0.000 claims description 2
- 229910052810 boron oxide Inorganic materials 0.000 claims description 2
- VASIZKWUTCETSD-UHFFFAOYSA-N manganese(II) oxide Inorganic materials [Mn]=O VASIZKWUTCETSD-UHFFFAOYSA-N 0.000 claims description 2
- 238000000034 method Methods 0.000 description 13
- 239000000292 calcium oxide Substances 0.000 description 6
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 6
- 239000000395 magnesium oxide Substances 0.000 description 6
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 6
- 239000011521 glass Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 229910052593 corundum Inorganic materials 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 2
- 239000011490 mineral wool Substances 0.000 description 2
- 229910001845 yogo sapphire Inorganic materials 0.000 description 2
- -1 Fe2θ3 Chemical compound 0.000 description 1
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910000423 chromium oxide Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 231100001081 no carcinogenicity Toxicity 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 229910001948 sodium oxide Inorganic materials 0.000 description 1
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
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/083—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound
- C03C3/085—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal
- C03C3/087—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal containing calcium oxide, e.g. common sheet or container glass
-
- 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
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)
- Biological Depolymerization Polymers (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Description
A mineral-fiber composition
The present invention relates to a mineral-fiber composition that is biologically degradable.
The prior art describes some mineral-fiber compositions which are said to be biologically degradable.
The biological degradability of mineral-fiber compositions is of great importance because various studies point out that mineral fibers with very small diameters in the range of less than 3 microns are suspected to be carcinogenic, while biologically degradable mineral fibers of such dimensions show lower or no carcinogenicity.
However not only the biological degradability is of crucial importance but also the mechanical and thermal properties of the mineral fibers, or the products produced therefrom, and the processibility of the mineral-fiber composition. For example mineral fibers are used to a great extent for insulation purposes. In particular for this application in the industrial area sufficient temperature stability of the mineral fibers is necessary.
Also, the mineral-fiber composition must permit processibility by known methods for producing mineral fibers with a small diameter, for example the jet process.
The invention is based on the problem of providing a novel mineral-fiber composition that is characterized by biological degradability, has good temperature stability and is easy to process.
The invention is based on the finding that this problem can be solved by a mineral-fiber composition that is built up substantially from silicon oxide, calcium oxide, magnesium oxide and sodium oxide.
It has turned out that such a mineral-fiber composition fulfills the combination of the necessary properties, namely biological degradability, temperature stability and good processibility.
The object of the invention is a mineral-fiber composition that is biologically degradable, characterized by the following constituents in percent by weight:
SiO2 50 to 65
AI2O3 less than 2
CaO 16 to 30
MgO 4 to 15
Na2θ 8 to 20 K2O 0 to 2
B2O3 0 to 10
TiO2, Fe2O3, Cr2O3, BaO, MnO, P2O5 0 to 5
The inventive mineral-fiber compositions are drawable by the jet process or the rotary process. The obtained fibers have good temperature stability. Surprisingly enough, the mineral-fiber compositions show biological degradability. The mean fiber diameter is preferably 10 microns or less, and especially between 2.5 and 5 microns.
The inventive mineral-fiber compositions preferably have the following constituents in percent by weight:
S1O2 55 to 60
AI2O3 less than 1.5
CaO 16 to 25
MgO 5 to 15
Na2θ 9 to 15
K2O less than 2
B2O3 0 to 8
Tiθ2, Fe2θ3, Cr2U3, BaO, MnO, P2O5 0 to 5
In particular, the inventive mineral-fiber compositions have the following constituents in percent by weight:
SiO2 55 to 59
AI2O3 less than 1.5
CaO 18 to 23
MgO 8 to 12
Na2θ 9 to 13
K2O less than 1
B2O3 0 to 3
TiO2, Fe2θ3, Cr2O3, BaO, MnO, P2O5 0 to 3
The content of magnesium oxide is preferably 6 to 12 percent by weight and in particular 8 to 12 percent by weight.
The content of chromium oxide is preferably less than 1.5 percent by weight and in particular less than 1.0 percent by weight.
The content of boron oxide is preferably less than 4 percent by weight.
To assess biological degradability the standard powder test of the German Glass Society was used. This is an easily conducted method and gives a sufficient measure of biological degradability. The method is described in L. Springer, "Laboratoriumsbuch fur die Glasindustrie", 3rd edition, 1950, Halle/S: W. Knapp Verlag.
The temperature behavior of the mineral fibers was determined by the Swedish method. In this method a silit tube furnace is used with a horizontal working tube open on both sides having a length of 350 mm and an inside diameter of 27 mm. In the center of the furnace there is a small ceramic supporting plate (30 X 20 X 3 mm) for holding the test sample. The test sample has dimensions of 12 X 12 X 12 mm or 12 mm C X 12 mm height. The bulk density is normally 100 kg/π.3. The temperature increase is 5 K/min. The change in test sample height is determined continuously with a reading optic.
The invention shall be described in more detail in the following with reference to examples.
Example 1
A mineral wool of the following composition in percent by weight was produced:
SiO2 56
Al2O3 0.5
CaO 20
MgO 10
Na2θ 10
B2O3 2.7
This composition could be processed well to mineral fibers with a mean diameter of 2.5 microns by the jet process at a drawing temperamre of 1330°C.
An investigation according to the standard powder test of the German Glass Society yielded a value of 35 mg/kg and thus a value for high biological degradability.
Determination of temperature behavior by the Swedish method yielded a temperamre stability at 5% reduction in height of 620°C, which can be clearly seen from the corresponding diagram shown by way of example in the single drawing.
Example 2
A mineral wool with the following composition in percent by weight was produced:
% bv weight Mole %
SiO2 56 52.75
Al2O3 1.0 0.55
CaO 21 21.20
MgO 11 15.45
Na2O 11 10.05
This composition could be processed well to mineral fibers with a mean diameter of 2.7 microns by the jet process at a drawing temperamre of 1310°C.
An investigation according to the standard powder test of the German Glass Society yielded a value of 37 mg/kg and thus a value for high biological degradability.
Determination of temperamre behavior by the Swedish method yielded a temperamre stability at 5% reduction in height of 600°C.
Claims (4)
1. A mineral-fiber composition that is biologically degradable, characterized by the following constituents in percent by weight:
SiO2 50 to 65
Al O3 less than 2
CaO 16 to 30
MgO 4 to 15
Na2O 8 to 20
K2O 0 to 2
B2O3 0 to 10
TiO2, Fe2O3, Cr2O3, BaO, MnO, P2O5 0 to 5
2. The mineral-fiber composition of claim 1, characterized by the following constituents in percent by weight:
Siθ2 55 to 60
AI2O3 less than 1.5
CaO 16 to 25
MgO 5 to 15
Na O 9 to 15
K O less than 2
B2O3 0 to 8
Tiθ2, Fe2O3, O^, BaO, MnO, P2O5 0 to 5
3. The mineral-fiber composition of claim 1, characterized by the following constituents in percent by weight:
Siθ2 55 to 59 AI2O3 less than 1.5
CaO 18 to 23
MgO 8 to 12
Na2θ 9 to 13
K2O less than 1
B2O3 0 to 3
Tiθ2, Fe2θ3, Cr2U3, BaO, MnO, P2O5 0 to 3
4. The mineral-fiber composition of any of claims 1 to 3, characterized in that the content of boron oxide is less than 4 percent by weight.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4417231 | 1994-05-17 | ||
| DE4417231A DE4417231C3 (en) | 1994-05-17 | 1994-05-17 | Use of a composition as a material for biodegradable mineral fibers |
| DE1995103172 DE19503172A1 (en) | 1995-02-01 | 1995-02-01 | Biologically degradable mineral fibre composition |
| DE9503172 | 1995-02-01 | ||
| PCT/EP1995/001843 WO1995031411A1 (en) | 1994-05-17 | 1995-05-16 | A mineral-fiber composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AU2612995A true AU2612995A (en) | 1995-12-05 |
Family
ID=25936642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU26129/95A Abandoned AU2612995A (en) | 1994-05-17 | 1995-05-16 | A mineral-fiber composition |
Country Status (15)
| Country | Link |
|---|---|
| EP (1) | EP0714381A1 (en) |
| JP (1) | JPH08511761A (en) |
| KR (1) | KR960703815A (en) |
| CN (1) | CN1128529A (en) |
| AU (1) | AU2612995A (en) |
| BR (1) | BR9506227A (en) |
| CA (1) | CA2162890A1 (en) |
| CZ (1) | CZ312095A3 (en) |
| FI (1) | FI955417A (en) |
| HU (1) | HU9600085D0 (en) |
| IS (1) | IS4283A (en) |
| NO (1) | NO960190L (en) |
| PL (1) | PL312575A1 (en) |
| SK (1) | SK149695A3 (en) |
| WO (1) | WO1995031411A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU690301B2 (en) * | 1994-06-19 | 1998-04-23 | Isover Saint-Gobain | Mineral-fiber compositions |
| AU696046B2 (en) * | 1994-08-02 | 1998-08-27 | Isover Saint-Gobain | A mineral-fiber composition |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9508683D0 (en) * | 1994-08-02 | 1995-06-14 | Morgan Crucible Co | Inorganic fibres |
| US6077798A (en) * | 1996-08-02 | 2000-06-20 | Owens Corning Fiberglas Technology, Inc. | Biosoluble, high temperature mineral wools |
| US5932347A (en) * | 1996-10-31 | 1999-08-03 | Owens Corning Fiberglas Technology, Inc. | Mineral fiber compositions |
| KR100460526B1 (en) * | 2002-03-07 | 2004-12-08 | 이 흥 권 | High functional composition having action on minus ion and far infrared ray |
| KR100789469B1 (en) * | 2004-04-29 | 2007-12-31 | 주식회사 케이씨씨 | Composition of biosoluble glass fiber |
| FR2883865B1 (en) * | 2005-04-01 | 2007-05-18 | Saint Gobain Isover Sa | MINERAL WOOL, INSULATING PRODUCT AND PROCESS FOR PRODUCING THE SAME |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU3765789A (en) * | 1988-06-01 | 1990-01-05 | Manville Sales Corporation | Process for decomposing an inorganic fiber |
| FI93346C (en) * | 1990-11-23 | 1998-03-07 | Partek Ab | Mineral Fiber Composition |
| FR2690438A1 (en) * | 1992-04-23 | 1993-10-29 | Saint Gobain Isover | Mineral fibers capable of dissolving in a physiological medium. |
-
1995
- 1995-05-08 IS IS4283A patent/IS4283A/en unknown
- 1995-05-16 SK SK1496-95A patent/SK149695A3/en unknown
- 1995-05-16 JP JP7529367A patent/JPH08511761A/en active Pending
- 1995-05-16 CA CA002162890A patent/CA2162890A1/en not_active Abandoned
- 1995-05-16 EP EP95920813A patent/EP0714381A1/en not_active Ceased
- 1995-05-16 PL PL95312575A patent/PL312575A1/en unknown
- 1995-05-16 AU AU26129/95A patent/AU2612995A/en not_active Abandoned
- 1995-05-16 CZ CZ953120A patent/CZ312095A3/en unknown
- 1995-05-16 WO PCT/EP1995/001843 patent/WO1995031411A1/en not_active Application Discontinuation
- 1995-05-16 BR BR9506227A patent/BR9506227A/en not_active Application Discontinuation
- 1995-05-16 CN CN95190437A patent/CN1128529A/en active Pending
- 1995-05-16 KR KR1019960700200A patent/KR960703815A/en not_active Application Discontinuation
- 1995-05-16 HU HU9600085A patent/HU9600085D0/en unknown
- 1995-11-10 FI FI955417A patent/FI955417A/en not_active Application Discontinuation
-
1996
- 1996-01-16 NO NO960190A patent/NO960190L/en unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU690301B2 (en) * | 1994-06-19 | 1998-04-23 | Isover Saint-Gobain | Mineral-fiber compositions |
| AU696046B2 (en) * | 1994-08-02 | 1998-08-27 | Isover Saint-Gobain | A mineral-fiber composition |
Also Published As
| Publication number | Publication date |
|---|---|
| SK149695A3 (en) | 1996-04-03 |
| FI955417A (en) | 1995-11-18 |
| JPH08511761A (en) | 1996-12-10 |
| NO960190D0 (en) | 1996-01-16 |
| FI955417A0 (en) | 1995-11-10 |
| CZ312095A3 (en) | 1997-04-16 |
| HU9600085D0 (en) | 1996-03-28 |
| KR960703815A (en) | 1996-08-31 |
| EP0714381A1 (en) | 1996-06-05 |
| BR9506227A (en) | 1997-08-12 |
| PL312575A1 (en) | 1996-04-29 |
| NO960190L (en) | 1996-01-16 |
| IS4283A (en) | 1995-11-18 |
| WO1995031411A1 (en) | 1995-11-23 |
| CN1128529A (en) | 1996-08-07 |
| CA2162890A1 (en) | 1995-11-23 |
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