Blue colored glass composition

Details Blue colored glass composition Blue colored glass composition

1998-07-23

1999-11-30

Marcheschi, Michael

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

501904, 501905, C03C 3087

Patent

active

059942495

ABSTRACT:
A soda-lime-silica glass having, at a thickness in the range of 3 mm to 10 mm, a visible light transmittance of 35% to 75%, a total solar radiation transmittance in the range of 20% to 60%, an ultraviolet radiation transmission less than 55%, and a blue color defined by the "CIELAB" system of L=65 to 90, a*=-15 to -4, and b*=-15 to -2. The soda-lime-silica glass composition includes the essential ingredients of about 0.5% to about 0.9% weight percent total iron (as Fe.sub.2 O.sub.3), about 50 ppm to 100 ppm CoO, and about 0.1 to about 2.0 weight percent TiO.sub.2, with a ferrous iron to total iron ratio of about 20% to about 40%.

REFERENCES:
patent: 5411922 (1995-05-01), Jones
patent: 5688727 (1997-11-01), Shelestak et al.
patent: 5780372 (1998-07-01), Higby
patent: 5807417 (1998-09-01), Boulos et al.

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