Alkali-resistant glass for forming glass fibers

Details Alkali-resistant glass for forming glass fibers Alkali-resistant glass for forming glass fibers

1990-08-16

1991-11-12

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

501 35, 501 38, 501 69, 501 70, C03C 3078, C03C 1300, C03C 3085, C03C 3087

Patent

active

050647857

ABSTRACT:
An alkali-resistant glass for forming glass fibers having the composition: 54 to 65 wt. % SiO.sub.2, 18 to 25 wt. % ZrO.sub.2, 0 to 5 wt. % Li.sub.2 O, 10 to 7 wt. % Na.sub.2 O, 0.5 to 8 wt. % K.sub.2 O, 0 to 10 wt. % RO where R represents Mg, Ca, Sr, Ba, or Zn, 0.5 to 7 wt. % TiO.sub.2, and 0 to 2 wt. % Al.sub.2 O.sub.3, which glass composition is free or substantially free from F.sub.2.

REFERENCES:
patent: 3969121 (1976-07-01), Atkinson
patent: 4142906 (1979-03-01), Iizawa
patent: 4243421 (1981-01-01), Kume
patent: 4345637 (1982-08-01), Fyles et al.

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