Glass fiber compositions

Details Glass fiber compositions Glass fiber compositions

C - Chemistry, Metallurgy

03

C

261/14

C03C 13/00 (2006.01)

Patent

CA 1045641

ABSTRACT OF THE DISCLOSURE Glass fibers having high tensile strength in excess of 570,000 pounds per square inch containing carefully selected quantities of SiO2, A12O3, MgO, CaO, TiO2, B2O3, Na2O, BaO and Li2O are disclosed. The glass fibres contain 53 to 57.3 percent by weight as SiO2, 16.3 to 18.5 percent by weight as Al2O3, 6.6 to 10.5 percent by weight as MgO, 8.5 to 12.7 percent by weight as CaO,0.6 to 0.8 percent by weight as TiO2, 2.0 to 4.1 percent by weight as B2O3 , 0.8 to 3.3.percent by weight as Na2O, 0.0 to 4.1 percent by weight as BaO and 0.0 to 1.0 percent by weight as Li2O. The glasses from which the fibres are made have softening points below 1,650°F and liquidus temperatures below 2210°F.

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