The present invention provides a glass fiber composition comprising: 52 to 62 percent by weight SiO2,0 to 2 percent by weight Na2O, 16 to 25 percent by weight CaO, 8 to 16 percent by weight Al2O3,0.05 to 0.80 percent by weight Fe2O3,0 to 2 percent by weight K2O, 1.7 to 2.6 percent by weight MgO, 0 t
The present invention provides a glass fiber composition comprising: 52 to 62 percent by weight SiO2,0 to 2 percent by weight Na2O, 16 to 25 percent by weight CaO, 8 to 16 percent by weight Al2O3,0.05 to 0.80 percent by weight Fe2O3,0 to 2 percent by weight K2O, 1.7 to 2.6 percent by weight MgO, 0 to 10 percent by weight B2O3,0 to 2 percent by weight TiO2,0 to 2 percent by weight BaO, 0 to 2 percent by weight ZrO2,and 0 to 2 percent by weight SrO, and further including at least one material selected from the group consisting of: 0.05 to 1.5 percent by weight Li2O, 0.05 to 1.5 percent by weight ZnO, 0.05 to 3 percent by weight MnO, and 0.05 to 3 percent by weight MnO2,wherein the glass composition has a forming temperature of no greater than 2280° F. based on an NIST 714 reference standard and a liquidus temperature of no greater than 2155° F. In one nonlimiting embodiment of the invention, the SiO2content is 57 to 59 percent by weight, the Na2O content is up to 1 percent by weight, the CaO content is 22 to 24 percent by weight, the Al2O3content is 12 to 14 percent by weight, the Fe2O3content is up to 0.4 percent by weight, and the K2O content is up to 0.1 percent by weight, and the composition includes at least one material selected from the group consisting of: 0.2 to 1 percent by weight Li2O, 0.2 to 1 percent by weight ZnO, up to 1 percent by weight MnO, and up to 1 percent by weight MnO2.
대표청구항▼
The present invention provides a glass fiber composition comprising: 52 to 62 percent by weight SiO2,0 to 2 percent by weight Na2O, 16 to 25 percent by weight CaO, 8 to 16 percent by weight Al2O3,0.05 to 0.80 percent by weight Fe2O3,0 to 2 percent by weight K2O, 1.7 to 2.6 percent by weight MgO, 0 t
The present invention provides a glass fiber composition comprising: 52 to 62 percent by weight SiO2,0 to 2 percent by weight Na2O, 16 to 25 percent by weight CaO, 8 to 16 percent by weight Al2O3,0.05 to 0.80 percent by weight Fe2O3,0 to 2 percent by weight K2O, 1.7 to 2.6 percent by weight MgO, 0 to 10 percent by weight B2O3,0 to 2 percent by weight TiO2,0 to 2 percent by weight BaO, 0 to 2 percent by weight ZrO2,and 0 to 2 percent by weight SrO, and further including at least one material selected from the group consisting of: 0.05 to 1.5 percent by weight Li2O, 0.05 to 1.5 percent by weight ZnO, 0.05 to 3 percent by weight MnO, and 0.05 to 3 percent by weight MnO2,wherein the glass composition has a forming temperature of no greater than 2280° F. based on an NIST 714 reference standard and a liquidus temperature of no greater than 2155° F. In one nonlimiting embodiment of the invention, the SiO2content is 57 to 59 percent by weight, the Na2O content is up to 1 percent by weight, the CaO content is 22 to 24 percent by weight, the Al2O3content is 12 to 14 percent by weight, the Fe2O3content is up to 0.4 percent by weight, and the K2O content is up to 0.1 percent by weight, and the composition includes at least one material selected from the group consisting of: 0.2 to 1 percent by weight Li2O, 0.2 to 1 percent by weight ZnO, up to 1 percent by weight MnO, and up to 1 percent by weight MnO2. awa et al., 425/007; US-5516585, 19960500, Young, Sr. et al., 428/372; US-5670044, 19970900, Ogata et al., 210/497.01; US-5672419, 19970900, Mukaida et al., 428/283; US-5679042, 19971000, Varona, 442/347; US-5681305, 19971000, Korpman, 604/390; US-5695376, 19971200, Datta et al., 442/334; US-5733822, 19980300, Gessner et al., 442/035; US-5759926, 19980600, Pike et al., 442/333; US-5866488, 19990200, Terada et al., 442/362; US-5981410, 19991100, Hansen et al., 442/361; US-5994615, 19991100, Dodge, II et al., 604/378; US-6022818, 20000200, Welchel et al.; US-6048808, 20000400, Kurihara et al., 442/361; US-6118041, 20000900, Roe et al., 604/360; US-6120488, 20000900, Vanrijswijck et al., 604/385.28; US-6120783, 20000900, Roe et al., 424/402; US-6142985, 20001100, Feist et al., 604/385.29
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