초록 ▼

Improved glass compositions for glass fibers typically useful for fire resistant blankets or containers to provide high burn-through resistance at temperatures of 2,300째 F. and typically comprising 10.23% to 81.81% silica, 2.0% to 26.00% alumina, 3.0% to 15.0% calcium oxide, 0% to 10.50% magnesium o

Improved glass compositions for glass fibers typically useful for fire resistant blankets or containers to provide high burn-through resistance at temperatures of 2,300째 F. and typically comprising 10.23% to 81.81% silica, 2.0% to 26.00% alumina, 3.0% to 15.0% calcium oxide, 0% to 10.50% magnesium oxide, 1.0% to 18.0% ferrous+ferric oxide, and 0% to 4.0% titanium dioxide; the improved glass compositions may include 0% to 9% lithium oxide, 0% to 9% boron oxide, 0% to 6.0% manganese oxide, and 0% to 4.0% phosphorous oxide.

대표청구항 ▼

What is claimed is: 1. A glass composition for forming glass fibers of high heat resistance, comprising: SiO2 in an amount of about 46.23 weight percent, Al2O3 in an amount of about 25.91 weight percent, Na2O in an amount of about 2.40 weight percent, K2O in an amount of about 0.82 weight percent

What is claimed is: 1. A glass composition for forming glass fibers of high heat resistance, comprising: SiO2 in an amount of about 46.23 weight percent, Al2O3 in an amount of about 25.91 weight percent, Na2O in an amount of about 2.40 weight percent, K2O in an amount of about 0.82 weight percent, CaO in an amount of about 8.27 weight percent, MgO in an amount of about 4.06 weight percent, Fe2O3+FeO in an amount of about 10.22 weight percent, TiO2 in an amount of about 1.58 weight percent, ZrQ2 in an amount of about 0.01 weight percent, P2O5 in an amount of about 0.28 weight percent, and MnO in an amount of about 0.23 weight percent. 2. A glass composition according to claim 1, wherein the resulting composition is essentially free of ZrO2. 3. A glass composition for forming glass fibers of high heat resistance, comprising: SiO2 in an amount of about 64.95 weight percent, Al2O3 in an amount of about 11.13 weight percent, Na2O in an amount of about 2.24 weight percent, K2O in an amount of about 2.24 weight percent, CaO in an amount of about 3.76 weight percent, MgO in an amount of about 3.77 weight percent, Fe2O3+FeO in an amount of about 9.51 weight percent, TiO2 in an amount of about 1.47 weight percent ZrO2 in an amount of about 0.01 weight percent, P2O5 in an amount of about 0.70 weight percent, and MnO in an amount of about 0.22 weight percent. 4. A glass composition according to claim 3, wherein the resulting composition is essentially free of ZrO2. 5. A glass composition for forming glass fibers of high heat resistance, comprising: SiO2 in an amount of about 55.25 weight percent, Al2O3 in an amount of about 18.25 weight percent, Na2O in an amount of about 2.30 weight percent, K2O in an amount of about 1.80 weight percent, CaO in an amount of about 8.38 weight percent, MgO in an amount of about 3.97 weight percent, Fe2O3+FeO in an amount of about 8.50 weight percent, TiO2 in an amount of about 1.09 weight percent, ZrO2 in an amount of about 0.31 weight percent, P2O5 in an amount of about 0.20 weight percent, and MnO in an amount of about 0.18 weight percent. 6. A glass composition for forming glass fibers of high heat resistance, comprising: SiO2 in an amount of about 67.55 weight percent, Al2O3 in an amount of about 9.76 weight percent, Na2O in an amount of about 1.96 weight percent, K2O in an amount of about 0.67 weight percent, GaO in an amount of about 6.74 weight percent, MgO in an amount of about 3.30 weight percent, Fe2O3+FeO in an amount of about 8.32 weight percent, TiO2 in an amount of about 1.28 weight percent, ZrO2 in an amount of about 0.01 weight percent, P2O5 in an amount of about 0.22 weight percent, and MnO in an amount of about 0.19 weight percent. 7. A glass composition according to claim 6, wherein the resulting composition is essentially free of ZrO2. 8. A glass composition for forming glass fibers of high heat resistance, comprising: SiO2 in an amount of about 70.02 weight percent, Al2O3 in an amount of about 10.14 weight percent, Na2O in an amount of about 2.03 weight percent, K2O in an amount of about 0.01 weight percent, CaO in an amount of about 6.53 weight percent, MgO in an amount of about 4.26 weight percent, Fe2O3+FeO in an amount of about 5.26 weight percent, TiO2 in an amount of about 1.33 weight percent, ZrO2 in an amount of about 0 weight percent, P2O5 in an amount of about 0 weight percent, and MnO in an amount of about 0 weight percent. 9. A glass composition for forming glass fibers of high heat resistance, comprising: SiO2 in an amount of about 46.47 weight percent, Al2O3 in an amount of about 25.91 weight percent, Na2O in an amount of about 2.41 weight percent, K2O in an amount of about 0.95 weight percent, CaO in an amount of about 8.31 weight percent, MgO in an amount of about 4.08 weight percent, Fe2O3+FeO in an amount of about 10.27 weight percent, and TiO2 in an amount of about 1.60 weight percent. 10. A glass composition for forming glass fibers of high heat resistance, comprising: SiO2 in an amount of about 66.92 weight percent, Al2O3 in an amount of about 11.42 weight percent, Na2O in an amount of about 2.59 weight percent, K2O in an amount of about 2.59 weight percent, CaO in an amount of about 3.81 weight percent, MgO in an amount of about 4.01 weight percent, Fe2O3+FeO in an amount of about 8.66 weight percent, and TiO2 in an amount of about 0.72 weight percent. 11. A glass composition for forming glass fibers of high heat resistance, comprising: SiO2 in an amount of about 55.50 weight percent, Al2O3 in an amount of about 18.33 weight percent, Na2O in an amount of about 2.31 weight percent, K2O in an amount of about 1.81 weight percent, CaO in an amount of about 8.42 weight percent, MgO in an amount of about 3.99 weight percent, Fe2O3+FeO in an amount of about 8.54 weight percent, and TiO2 in an amount of about 1.10 weight percent. 12. A glass composition for forming glass fibers of high heat resistance, comprising: SiO2 in an amount of about 67.83 weight percent, Al2O3 in an amount of about 9.80 weight percent, Na2O in an amount of about 1.97 weight percent, K2O in an amount of about 0.67 weight percent, CaO in an amount of about 6.77 weight percent, MgO in an amount of about 3.31 weight percent, Fe2O3+FeO in an amount of about 8.36 weight percent, and TiO2 in an amount of about 1.29 weight percent. 13. A glass composition for forming glass fibers of high heat resistance, comprising: SiO2 in an amount of about 70.31 weight percent, Al2O3 in an amount of about 10.18 weight percent, Na2O in an amount of about 2.03 weight percent, K2O in an amount of about 0.01 weight percent, CaO in an amount of about 6.55 weight percent, MgO in an amount of about 4.27 weight percent, Fe2O3+FeO in an amount of about 5.28 weight percent, and TiO2 in an amount of about 1.37 weight percent. 14. A glass fiber comprising the glass composition of claim 9 wherein the glass fiber is resistant to heat and fire for a substantial period of at least three hours to prevent burn-through by the conversion of at least a portion of the fibers into a fiber mat of ceram glass. 15. A glass fiber comprising the glass composition of claim 10 wherein the glass fiber is resistant to heat and fire for a substantial period of at least three hours to prevent burn-through by the conversion of at least a portion of the fibers into a fiber mat of ceram glass. 16. A glass fiber comprising the glass composition of claim 13 wherein the glass fiber is resistant to heat and fire for a substantial period of at least three hours to prevent burn-through by the conversion of at least a portion of the fibers into a fiber mat of ceram glass. 17. A glass composition for forming glass fibers of high heat resistance, comprising: SiO2 in an amount of about 67.55 weight percent, Al2O3 in an amount of about 9.76 weight percent, Na2O in an amount of about 0.67 weight percent, B2O3 in an amount of about 1.96 weight percent, CaO in an amount of about 6.74 weight percent, MgO in an amount of about 3.30 weight percent, Fe2O3+FeO in an amount of about 8.32 weight percent, TiO2 in an amount of about 1.28 weight percent, ZrO2 in an amount of about 0.01 weight percent, P2O5 in an amount of about 0.22 weight percent, and NnO in an amount of about 0.19 weight percent. 18. A glass composition for forming glass fibers of high heat resistance, comprising: SiO2 in an amount of about 67.55 weight percent, Al2O3 in an amount of about 9.76 weight percent, Na2O in an amount of about 0.67 weight percent, Li2O in an amount of about 1.96 weight percent, CaO in an amount of about 6.74 weight percent, MgO in an amount of about 3.30 weight percent, Fe2O3+FeO in an amount of about 8.32 weight percent, TiO2 in an amount of about 1.28 weight percent, ZrO2 in an amount of about 0.01 weight percent, P2O5 in an amount of about 0.22 weight percent, and MnO in an amount of about 0.19 weight percent. 19. A glass composition for forming glass fibers of high heat resistance, comprising: SiO2 in an amount of about 67.55 weight percent, Al2O3 in an amount of about 9.76 weight percent, Na2O in an amount of about 0.67 weight percent, K2O in an amount of about 1.96 weight percent, CaO in an amount of about 6.74 weight percent, MgO in an amount of about 3.30 weight percent, Fe2O3+FeO in an amount of about 8.32 weight percent, TiO2 in an amount of about 1.28 weight percent, ZrO2 in an amount of about 0.01 weight percent, P2O5 in an amount of about 0.22 weight percent, and MnO in an amount of about 0.19 weight percent. 20. A glass composition for forming glass fibers of high heat resistance, comprising: SiO2 in an amount of about 49.0 weight percent, Al2O3 in an amount of about 23.0 weight percent, B2O3 in an amount of about 2.35 weight percent, Na2O in an amount of about 1.04 weight percent, CaO in an amount of about 8.31 weight percent, MgO in an amount of about 4.08 weight percent, Fe2O3+FeO in an amount of about 10.27 weight percent, and TiO2 in an amount of about 1.59 weight percent. 21. A glass composition for forming glass fibers of high heat resistance, comprising: SiO2 in an amount of about 67.36 weight percent, Al2O3 in an amount of about 9.76 weight percent, Li2O in an amount of about 2.86 weight percent, Na2O in an amount of about 1.00 weight percent, CaO in an amount of about 5.28 weight percent, MgO in an amount of about 3.80 weight percent, Fe2O3+FeO in an amount of about 8.46 weight percent, and TiO2 in an amount of about 1.48 weight percent. 22. A glass composition for forming glass fibers of high heat resistance, comprising: SiO2 in an amount of about 65.16 weight percent, Al2O3 in an amount of about 11.18 weight percent, B2O3 in an amount of about 3.01 weight percent, CaO in an amount of about 7.14 weight percent, MgO in an amount of about 3.99 weight percent, Fe2O3+FeO in an amount of about 8.95 weight percent, and TiO2 in an amount of about 0.57 weight percent. 23. A glass composition for forming glass fibers of high heat resistance, comprising: SiO2 in an amount of about 56.01 weight percent, Al2O3 in an amount of about 13.92 weight percent, B2O3 in an amount of about 4.01 weight percent, Na2O in an amount of about 2.92 weight percent, K2O in an amount of about 0.96 weight percent, CaO in an amount of about 8.40 weight percent, Fe2O3+FeO in an amount of about 11.94 weight percent, and TiO2 in an amount of about 1.84 weight percent. 24. A glass composition for forming glass fibers of high heat resistance, comprising: SiO2 in an amount of about 66.51 weight percent, Al2O3 in an amount of about 9.34 weight percent, Li2O in an amount of about 3.41 weight percent, Na2O in an amount of about 2.81 weight percent, CaO in an amount of about 6.41 weight percent, MgO in an amount of about 2.99 weight percent, and Fe2O3+FeO in an amount of about 8.53 weight percent. 25. A glass composition for forming glass fibers of high heat resistance, comprising: SiO2 in an amount of about 68.00 weight percent, Al2O3 in an amount of about 9.06 weight percent, B2O3 in an amount of about 2.01 weight percent, Na2 O in an amount of about 2.33 weight percent, K2O in an amount of about 0.42 weight percent, CaO in an amount of about 6.23 weight percent, MgO in an amount of about 3.06 weight percent, Fe2O3+FeO in an amount of about 7.70 weight percent, and TiO2 in an amount of about 1.19 weight percent. 26. A glass composition for forming glass fibers of high heat resistance, comprising: SiO2 in an amount of about 65.24 weight percent, Al2O3 in an amount of about 2.50 weight percent, B2O3 in an amount of about 6.00 weight percent, Na2O in an amount of about 13.00 weight percent, CaO in an amount of about 6.70 weight percent, MgO in an amount of about 1.85 weight percent, Fe2O3+FeO in an amount of about 4.01 weight percent, and TiO2 in an amount of about 0.70 weight percent. 27. A glass composition for forming glass fibers of high heat resistance, comprising: SiO2 in an amount of about 67.50 weight percent, Al2O3 in an amount of about 9.34 weight percent, Li2O in art amount of about 2.31 weight percent, K2O in an amount of about 0.81 weight percent, CaO in an amount of about 8.41 weight percent, MgO in an amount of about 2.00 weight percent, Fe2O3+FeO in an amount of about 8.53 weight percent and TiO2 in an amount of about 1.10 weight percent. 28. A glass composition for forming glass fibers of high heat resistance, comprising: SiO2 in an amount of about 46.47 weight percent, Al2O3 in an amount of about 25.91 weight percent, B2O3 in an amount of about 2.41 weight percent, Na2O in an amount of about 2.55 weight percent, CaO in an amount of about 8.31 weight percent, MgO in an amount of about 4.08 weight percent, and Fe2O3+FeO in an amount of about 10.27 weight percent. 29. A glass composition for forming glass fibers of high heat resistance, comprising: SiO2 in an amount of about 66.92 weight percent, Al2O3 in an amount of about 11.42 weight percent, Na2O in an amount of about 2.59 weight percent, B2O3 in an amount of about 4.24 weight percent, CaO in an amount of about 4.02 weight percent, MgO in an amount of about 0.81 weight percent, and Fe2O3+FeO in an amount of about 10.00 weight percent. 30. A glass composition for forming glass fibers of high heat resistance, comprising: SiO2 in an amount of about 70.31 weight percent, Al2O3 in an amount of about 8.30 weight percent, Na2O in an amount of about 2.03 weight percent, B2O3 in an amount of about 1.01 weight percent, CaO In an amount of about 6.55 weight percent, MgO in an amount of about 3.27 weight percent, and Fe2O3+FeO in an amount of about 8.53 weight percent.