GB2220654A - Glass composition and batch blend for its production - Google Patents
Glass composition and batch blend for its production Download PDFInfo
- Publication number
- GB2220654A GB2220654A GB8816608A GB8816608A GB2220654A GB 2220654 A GB2220654 A GB 2220654A GB 8816608 A GB8816608 A GB 8816608A GB 8816608 A GB8816608 A GB 8816608A GB 2220654 A GB2220654 A GB 2220654A
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- weight percent
- amount
- glass
- glass composition
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Links
- 239000011521 glass Substances 0.000 title claims abstract description 46
- 239000000203 mixture Substances 0.000 title claims abstract description 45
- 238000004519 manufacturing process Methods 0.000 title abstract description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 32
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims abstract description 25
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 13
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 13
- 239000000292 calcium oxide Substances 0.000 claims abstract description 12
- 239000003365 glass fiber Substances 0.000 claims abstract description 7
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 18
- 229910052681 coesite Inorganic materials 0.000 claims description 11
- 229910052906 cristobalite Inorganic materials 0.000 claims description 11
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 11
- 235000012239 silicon dioxide Nutrition 0.000 claims description 11
- 229910052682 stishovite Inorganic materials 0.000 claims description 11
- 229910052905 tridymite Inorganic materials 0.000 claims description 11
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 10
- 229910052593 corundum Inorganic materials 0.000 claims description 10
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 10
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 6
- 239000004576 sand Substances 0.000 claims description 6
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 5
- 235000019738 Limestone Nutrition 0.000 claims description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 4
- 229910021536 Zeolite Inorganic materials 0.000 claims description 4
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 4
- 239000010881 fly ash Substances 0.000 claims description 4
- 239000006028 limestone Substances 0.000 claims description 4
- 239000010451 perlite Substances 0.000 claims description 4
- 235000019362 perlite Nutrition 0.000 claims description 4
- 239000002893 slag Substances 0.000 claims description 4
- 239000010457 zeolite Substances 0.000 claims description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 3
- 229940072033 potash Drugs 0.000 claims description 3
- 235000015320 potassium carbonate Nutrition 0.000 claims description 3
- 235000017550 sodium carbonate Nutrition 0.000 claims description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 2
- 239000004615 ingredient Substances 0.000 claims 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims 1
- 229910052796 boron Inorganic materials 0.000 claims 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 abstract description 9
- CHWRSCGUEQEHOH-UHFFFAOYSA-N potassium oxide Chemical compound [O-2].[K+].[K+] CHWRSCGUEQEHOH-UHFFFAOYSA-N 0.000 abstract description 8
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 abstract description 2
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 abstract description 2
- 229910001950 potassium oxide Inorganic materials 0.000 abstract description 2
- 229910001948 sodium oxide Inorganic materials 0.000 abstract description 2
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 abstract 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 abstract 1
- 230000000704 physical effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 12
- 239000000835 fiber Substances 0.000 description 7
- 238000009413 insulation Methods 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 239000008188 pellet Substances 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 2
- 235000013980 iron oxide Nutrition 0.000 description 2
- 239000006060 molten glass Substances 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 238000004031 devitrification Methods 0.000 description 1
- 238000010410 dusting Methods 0.000 description 1
- 238000007380 fibre production Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 239000006066 glass batch Substances 0.000 description 1
- 238000007496 glass forming Methods 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000010907 mechanical stirring Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 235000011181 potassium carbonates Nutrition 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
-
- 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
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
A glass composition, especially suitable for glass fibre manufacture and having good fiberizing characteristics and good physical properties, typically contains, by weight, 40.0% to 65.0% silica, 4.0% to 11.0% alumunum oxide, 6.0% to 20.0% sodium oxide, 5.0% to 8.0% magnesium oxide, 6.0% to 17.0% calcium oxide, 4.0% to 12.0% ferrous and ferric oxides, and 0.0% to 7.0% potassium oxide.
Description
GLASS COMPOSITION AND BATCH BLEND FOR ITS PRODUCTION
This invention relates to glass compositions and to batch blends for their production. Glass compositions according to the invention and fibres made from them can have good fiberizing characteristics, high strength, high modulus of elasticity and high durability at high temperatures.
There has been a demand for fibre glass compositions which can be successfully formed into fibres, particularly for use in insulation and acoustical products, and as reinforcements for other materials where high strength, high modulus of elasticity and high temperature resistance are important. The problems of achieving these characteristics at low cost have long been recognized in the glass art; however, ns completely satisfactory composition has been available for forming long glass fibres having desired characteristics. High temperature glass compositions have heretofore been produced, but they are subject to the drawbacks of having a short working temperature range or being too expensive to produce due to the high costs of the raw material or energy requirements.
The present invention provides a glass composition useful for forming glass fibres, the composition comprising:
SiO2 in an amount ranging from about 40.0 to about 65.0 weight percent;
A1203 in an amount ranging from about 4.0 to about 11.0 weight percent;
Na2O in an amount ranging from about 6.0 to about 20.0 weight percent; K2O in an amount ranging from about 0.0 to about 7.0 weight percent;
CaO in an amount ranging from about 6.0 to about 17.0 weight percent;
MgO in an amount ranging from about 5.0 to about 8.0 weight percent; and
FeO and Fe203 in a combined amount ranging from about 4.0 to about 12.0 weight percent.
The invention also provides a batch blend to produce a glass composition useful for forming glass fibres, the blend comprising:
at least one of basalt, fly-ash, perlite, zeolite and slag, or in an amount ranging from about 55 to about 95 weight percent;
sand in an amount ranging from about 5 to about 31 weight percent;
soda ash in an amount ranging from about 5 to about 22 weight percent;
limestone in an amount ranging from about 5 to about 10 percent;
potash in an amount less than about 9 weight percent; and
zirconia in an amount less than about 10 weight percent.
The invention can provide a glass which possesses properties lacking in glasses of the prior art. Thus, the glass of this invention can have insulation and acoustical properties, high strength and a high modulus of elasticity.
This invention can also provide a glass which has high strength and can be drawn into long, stable glass fibres.
The glass of the present invention is capable of being formed into fibres for insulations and acoustical products using the centrifugal rotary process, and/or can be drawn continuously into fibre for roving or parallel mat. The glass can have high strength and high durability at high temperature. One fibre forming system is set forth in US Patent 3219425. The material of this present invention differs from other high temperature resistant glasses in that, unlike those used heretofore, the material of the invention can have good resistance to devitrification and requires lower processing energy. The present glass can also have improved insulation and strength characteristics. It can be relatively easy to melt and can require very little refining to free it from impurities, allowing continuous or discontinuous fibres to be produced with relative ease.
The glass of the present~invention may be used in any area where high strength is required. This includes its use in a resinous matrix as a reinforcement for inorganic as well as organic matrices, and as a reinforcement for asphaltic products.
The present invention can provide for a reduction in cost of approximately 20% due to the use of less expensive raw materials and lower energy usage to process it into glass. In addition, it has been found that less binder is often required than in known, commercially available compositions, this being due to the improved surface and high strength of the fibre.
Compositions according to the present invention can have the following compositions by weight:
about 40.0% to about 65.0% silica, about 6.0% to 11.0% aluminum oxide,
about 6.0% to 20% sodium oxide,
about 0.0% to 7.0% potassium oxide,
about 5.0% to about 8.0% magnesium oxide, and
about 4.0% to about 12.0% ferrous and ferric
oxides.
Trace impurities may also be present in the glass but occur in such small quantities that they do not affect the composition
The glasses of the present invention can be prepared by continuously melting of the batch raw material within the following approximate ranges at temperatures of between about 2600 and about 2900 oF (1427 and 15930C) in conventional refractory containers. The batch composition ranges may be based upon the following materials giving the proportion by weight percent of the components:
Basalt 55 - 95
Sand 5 - 22
Soda Ash 5 - 22
Limestone 5 - 10
Potash 0 - 9
Zirconia 0 - 10
The glass compositons of this invention can have a liquidus temperature below 1200 oC and a log viscosity of (2.5) at approximately 1150 oC. These glasses are therefore suitable for glass forming.The glasses of this invention, with relatively large amounts of iron oxides, seem to have improved chemical durability. The batch can be melted in a state-of-the-art fossil fuel or electric furnace.
The batch components may be weighed in a dry powder of granular form and mixed in a conventional or pneumatic mixer. The dry batch may then be dampened with water to prevent loss from dusting while the batch is being transferred to the furnace, or it may be used dry. The batch may then be charged into the furnace which has already been brought to the desired melt temperature. Mechanical stirring of the batch in the furnace is not normally necessary since the natural convention currents, which are formed during the melting process, act to provide circulation.
Alternatively or in addition, pneumatic mixing may be used. Samples of glass may be taken from the furnace at periodic intervals to determine when the glass has reached the uniform composition. This is generally after the sand, which is last to melt completely, has dissolved.
The glass may then flow directly to a bushing for fibre production if a direct melt process is used or the glass may be cooled to a frit or pellet form and then remelted in a fibre bushing if a pellet feeding process is utilized (flame attenuation).
The molten glass can be formed into insulation and acoustical fibres using the centrifugal rotary process or the flame attenuation process. In the case of the flame attenuation process, the fibres are formed from previously made pellets. The pellets are remelted in a small, remelt furnace. By gravity the glass flows through small holes (100-200) in the bottom of the furnace. The fibres are reduced in diameter by mechanically pulling them in sets of pull rolls. A further and final attenuation is achieved by blowing the fibre by a hot, gaseous blast as they emerge from the pull-rolls. The fibres are gathered into a mat on a chain conveyer. Fibre diameter in the range of approximately 4 microns is achievable with the process.
In case if the centrifugal rotary process similar to the process described in US Patents 3190736 and 3219425, the glass flows from the melter directly into the forehearth of the furnace and then into a single hole bushing. From the orifice of the bushing the glass flows in a continuous stream into a high speed, rotating disc. Due to the high centrifugal speed, sufficient force is created to force the glass through small holes (approximately 10,000) in the side of the disc. As the glass passes through the holes in the form of a small stream, it is further attenuated into smaller diameter fibres using a cold and/or hot gaseous blast. The resultant fibres are collected on a chain conveyor as a mat which conveys it through the balance of the manufacturing process. Fibre diameters in the range of approximately 5 to 6 microns are normally made using this process.Both of the above processes may be sued to manufacture sub-micron fibres.
The molten glass can also be drawn into fibres on a conventional drawing wheel at speeds up to 12,000 feet per minute (61 m s~1) and temperatures of between about 1204 and about 1260 C. Speeds of between about 5000 and about 10,000 feet per minute (26 and 51 m s-1) are preferred in order to give optimum filament properties.
The fibres may be drawn from about 0.0001 to about 0.004 inch (2.54 to 102 Fm) in diameter, although diameters of between about 0.00035 and 0.0004 inch (8.89 to 10.2)jim) are preferred.
To further illustrate the invention, the following examples are presented. The raw materials are given in pounds and the glasses in oxides by weight percent:
The following typical batches were mixed in a dry granular form as discussed above and melted in a conventional refractory furnace at a temperature between 1425 and 1600 oF (774 and 871 oC). The resultant glasses were successfully fiberized into continuous and glass wool fibres:
TYPICAL BATCH BLENDS
Basalt 90 90 90 90 95 90 90 90 70 70 65 60 60 59.0 55.0
Soda
Ash 5 10 10 18 9 9 18 15.0 20.5
Limestone 5 5 10 3.5
Sand 5 5 10 5 12 26 31 22 22.0 23.0
Potassium
Carbonate 7.0
Boric
Acid 5
Glass
Cullet 10 20
NOTE: Fly-ash, perlite, zeolite or slag may be substituted for basalt.
TYPICAL GLASS COMPOSITION
OXIDES WEIGHT PERCENT
SiO2 40.0 - 65.0 Al2O3 6.0 - 10.0
Na2O 6.0 - 20.0
K20 0.0 - 7.0
CaO 6.0 - 10.0
MgO 5.0 - 8.0
Fe203/FeO 4.0 - 9.0
TiO2 1.0 - 3.0
The glass batch used to prepare these compositions contains large amounts of iron oxide. The main raw materials that may be used in these glass batches are slags, fly-ash, perlite, zeolite or basalt.
Other glass compositions which may be formed into fibres with good results are listed in the following examples.
EXAMPLE 1
OXIDES WEIGHT PERCENT
SiO2 44.6
Al203 9.7
Na2O 12.4 K2O 0.8
CaO 16.3
MgO 6.8
FeO & Fe203 7.8
TiO2 1.9
EXAMPLE 2
OXIDES WEIGHT PERCENT
SiO2 47.9
Al2O3 10.9
Na2O 13.9 K2O 0.8
CaO 8.2
MgO 7.6
FeO & Fe203 8.7
TiO2 1.9
EXAMPLE 3
OXIDES WEIGHT PERCENT
SiO2 53.8
Al203 9.3
Na2O 13.6 K2O 0.7
CaO 6.9
MgO 6.5
FeO & Fe2O3 7.4
TiO2 1.7
EXAMPLE 4
OXIDES WEIGHT PERCENT
SiO2 55.4
Al2O3 9.2
Na2O 11.7 K2O 0.7
CaO 9.0
MgO 6.4
FeO & Fe2O3 7.3
TiO2 1.7
EXAMPLE 5
OXIDES WEIGHT PERCENT
SiO2 58.4
Al203 9.7
Na2O 7.7
K2O 0.7
CaO 7.3
MgO 6.7
FeO & Fe203 7.8
TiO2 1.8
Claims (13)
1. A glass composition useful for forming glass fibres, the composition comprising:
SiO2 in an amount ranging from about 40.0 to about 65.0 weight percent;
Al203 in an amount ranging from about 4.0 to about 11.0 weight percent;
Na2O in an amount ranging from about 6.0 to about 20.0 weight percent;
K20 in an amount ranging from about 0.0 to about 7.0 weight percent;
CaO in an amount ranging form about 6.0 to about 17.0 weight percent;
MgO in an amount ranging from about 5.0 to about 8.0 weight percent; and
FeO and Fe203 in a combined amount ranging from about 4.0 to about 12.0 weight percent.
2. A glass composition according to claim 1, in which the amount of K2O is from 0.0 to 3.0 weight percent.
3. A glass composition according to claim 1 or 2, the composition consisting essentially of:
SiO2 in the amount of about 54.0 weight percent;
Al203 in the amount of about 9.3 weight percent;
Na2O in the amount of about 14.0 weight percent; K2O in the amount of about 0.7 weight percent;
CaO in the amount of about 7.0 weight percent;
MgO in the amount of about 6.5 weight percent;
FeO and Fe203 in the combined amount of about 7.4 weight percent; and
less than about 1.8 weight percent TiO2.
4. A glass composition according to claim 1 or 2, the composition consisting essentially of:
SiO2 in the amount of about 54.8 weight percent;
Al203 in the amount of about 9.0 weight percent;
Na2O in the amount of about 16.0 weight percent; K2O in the amount of about 0.7 weight percent;
CaO in the amount of about 5.8 weight percent:
MgO in the amount of about 3.6 weight percent;
FeO and Fe2O3 in the combined amount of about 8.3 weight percent; and
TiO2 in the amount of about 1.6 weight percent.
5. A glass composition according to claim 1 or 2 the composition consisting essentially of:
SiO2 in the amount of about 53.0 weight percent;
Al203 in the amount of about 9.0 weight percent;
Na2O in the amount of about 14.0 weight percent; K2O in the amount of about 0.35 weight percent;
CaO in the amount of about 6.8 weight percent;
MgO in the amount of about 7.0 weight percent;
FeO and Fe203 in the combined amount of about 8.0 weight percent; and
TiO2 in the amount of about 1.7 weight percent.
6. A glass composition according to claim 5, in which the amount of Na2O is instead 40.0 weight percent.
7. A batch blend to produce a glass composition useful for forming glass fibres, the blend comprising:
at least one of basalt, fly-ash. perlite, zeolite and slag, in an amount ranging from about 55 to about 95 weight percent;
sand in an amount ranging from about 5 to about 31 weight percent;
soda ash in an amount ranging from about 5 to about 22 weight percent;
limestone in an amount ranging from about 5 to about 10 percent;
potash in an amount less than about 9 weight percent; and
zirconia in an amount less than about 10 weight percent.
8. A batch blend according to claim 7, in which the amount of sand ranges from about 5 to about 22 weight percent.
9. A batch blend according to claim 7 or 8, in which the amount of the the first-mentioned ingredient ranges from about 70 to about 55 weight percent.
10. A batch blend according to any of claims 7 to 9, in which the first-mentioned ingredient is basalt.
11. A batch blend according to any of claims 7 to 10 and substantially free of boron.
12. A glass composition substantially as hereinbefore described in any of examples 1 to 5.
13. A batch blend substantially as hereinbefore described as a typical batch blend.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8816608A GB2220654B (en) | 1988-07-13 | 1988-07-13 | Glass composition and batch blend for its production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8816608A GB2220654B (en) | 1988-07-13 | 1988-07-13 | Glass composition and batch blend for its production |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB8816608D0 GB8816608D0 (en) | 1988-08-17 |
| GB2220654A true GB2220654A (en) | 1990-01-17 |
| GB2220654B GB2220654B (en) | 1992-10-07 |
Family
ID=10640339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8816608A Expired - Lifetime GB2220654B (en) | 1988-07-13 | 1988-07-13 | Glass composition and batch blend for its production |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2220654B (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993022251A1 (en) * | 1992-04-23 | 1993-11-11 | Isover Saint-Gobain | Mineral fibres capable of dissolving in a physiological medium |
| DE19604238A1 (en) * | 1996-02-06 | 1997-08-07 | Gruenzweig & Hartmann | Mineral fiber composition |
| US5932347A (en) * | 1996-10-31 | 1999-08-03 | Owens Corning Fiberglas Technology, Inc. | Mineral fiber compositions |
| WO1999057073A1 (en) * | 1998-05-06 | 1999-11-11 | Isover Saint-Gobain | Mineral wool composition |
| EP0917135A4 (en) * | 1997-06-05 | 1999-12-15 | Hoya Corp | Substrate for information recording media |
| DE4417231C3 (en) * | 1994-05-17 | 2000-06-29 | Gruenzweig & Hartmann | Use of a composition as a material for biodegradable mineral fibers |
| WO2000048954A1 (en) * | 1999-02-15 | 2000-08-24 | Schott Glas | Glass with high proportion of zirconium-oxide and its uses |
| US6158249A (en) * | 1991-08-02 | 2000-12-12 | Isover Saint-Gobain | Apparatus for manufacturing mineral wool |
| US6825139B2 (en) * | 2001-01-08 | 2004-11-30 | Glasscerax Ltd. | Poly-crystalline compositions |
| US7803731B2 (en) * | 2007-08-15 | 2010-09-28 | Johns Manville | Fire resistant glass fiber |
| WO2011017343A3 (en) * | 2009-08-03 | 2012-01-12 | Ppg Industries Ohio, Inc. | Glass compositions and fibers made therefrom |
| WO2012140173A1 (en) | 2011-04-13 | 2012-10-18 | Rockwool International A/S | Processes for forming man made vitreous fibres |
| US20130330534A1 (en) * | 2010-12-22 | 2013-12-12 | Asamer Basaltic Fibers Gmbh | Raw material for producing basalt fibres |
| US9446983B2 (en) | 2009-08-03 | 2016-09-20 | Ppg Industries Ohio, Inc. | Glass compositions and fibers made therefrom |
| US9593038B2 (en) | 2009-08-03 | 2017-03-14 | Ppg Industries Ohio, Inc. | Glass compositions and fibers made therefrom |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2251294A1 (en) | 1996-04-24 | 1997-10-30 | Owens Corning | Glass compositions having high ki values and fibers therefrom |
| US6034014A (en) | 1997-08-04 | 2000-03-07 | Owens Corning Fiberglas Technology, Inc. | Glass fiber composition |
| CN104844007A (en) * | 2015-04-28 | 2015-08-19 | 安徽丹凤电子材料股份有限公司 | Glass fiber composite material |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2150553A (en) * | 1983-12-01 | 1985-07-03 | Glass Int Inc | Composition for making glass fibres |
-
1988
- 1988-07-13 GB GB8816608A patent/GB2220654B/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2150553A (en) * | 1983-12-01 | 1985-07-03 | Glass Int Inc | Composition for making glass fibres |
Cited By (33)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0551476B2 (en) † | 1991-08-02 | 2001-05-09 | Saint-Gobain Isover | Apparatus for manufacturing mineral wool |
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| AU2010279583B2 (en) * | 2009-08-03 | 2013-10-10 | Ppg Industries Ohio, Inc. | Glass compositions and fibers made therefrom |
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| US9073780B2 (en) * | 2010-12-22 | 2015-07-07 | Asa.Tec Gmbh | Raw material for producing basalt fibers |
| US20130330534A1 (en) * | 2010-12-22 | 2013-12-12 | Asamer Basaltic Fibers Gmbh | Raw material for producing basalt fibres |
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| EP3632857A1 (en) | 2011-04-13 | 2020-04-08 | Rockwool International A/S | Processes for forming man made vitreous fibres |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2220654B (en) | 1992-10-07 |
| GB8816608D0 (en) | 1988-08-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PE20 | Patent expired after termination of 20 years |
Expiry date: 20080712 |