Mineral fiber compositions

Details Mineral fiber compositions Mineral fiber compositions

1996-12-31

1999-08-03

Krynski, William

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Rod, strand, filament or fiber

428364, 428375, 428391, 501 35, 501 36, 501 69, 501 70, 501 95, C03B 3700, C03C 1306

Patent

active

059323477

ABSTRACT:
Mineral fiber compositions are disclosed which, in a first embodiment, include the following components, indicated in weight percents: about 54 to about 70 percent SiO.sub.2, about 0 to about 4 percent Al.sub.2 O.sub.3, about 0 to about 6 percent Na.sub.2 O, about 0 to about 6 percent K.sub.2 O, about 0 to about 6 percent MgO, about 10 to about 28 percent CaO, about 6 to about 17 percent total iron as FeO, and about 0 to about 5 percent TiO.sub.2, wherein the total weight percent of SiO.sub.2 and Al.sub.2 O.sub.3 ranges from about 56 percent to about 72 percent, the total weight percent of MgO and CaO ranges from about 12 percent to about 28 percent, the total weight percent of Na.sub.2 O and K.sub.2 O does not exceed 6 percent, and the total weight percent of all components, including trace elements, if any, is 100 percent. In a second embodiment, the compositions include the following components, indicated in weight percents: about 50 to about 68 percent SiO.sub.2, about 0 to about 4 percent Al.sub.2 O.sub.3, about 0 to about 6 percent K.sub.2 O, about 0 to about 6 percent Na.sub.2 O, about 0 to about 10 percent MgO, about 10 to about 28 percent CaO, about 6 to about 16 percent total iron as FeO, about 0 to about 5 percent TiO.sub.2, and about 0.5 to about 12 percent ZrO.sub.2, wherein the total weight of Na.sub.2 O and K.sub.2 O does not exceed 6 percent and the total weight of all components, including trace elements, if any, is 100 percent.

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