Glass compositions

Details Glass compositions Glass compositions

1994-08-03

1995-12-26

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

501 31, 501 71, C03C 600, C03C 604, C03C 3087

Patent

active

054787831

ABSTRACT:
An infrared and ultraviolet absorbing soda-lime-silica glass of a neutral tint containing 0.3% to 0.7% by weight total iron expressed as Fe.sub.2 O.sub.3, together with amounts of Se, Co.sub.3 O.sub.4 and a ferrous iron content to provide a ratio of ferrous iron to total iron in the range of 21 to 34. NiO and TiO.sub.2 may be added to the glass. The resultant glass, in a nominal 4 mm thickness, has a visible light transmission of at least 70% and a direct solar heat transmission at least 12 percentage points below the visible light transmission. The iron in the glass is preferably provided by the inclusion of the mineral wuestite in the glass batch formulation.

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patent: 3296004 (1967-01-01), Duncan
patent: 3723142 (1973-03-01), Kato et al.
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patent: 4339541 (1982-07-01), Dela Ruye
patent: 4792536 (1988-12-01), Pecoraro et al.
patent: 5023210 (1991-06-01), Krumwiede et al.
patent: 5112778 (1992-05-01), Cheng et al.
patent: 5318931 (1994-06-01), Nakaguchi et al.
patent: 5346867 (1994-09-01), Jones et al.
patent: 5364820 (1994-11-01), Morimoto et al.
Volf Chemical Approach to Glass, 1984 (No Month) pp. 360-365.
Tooley Handbook of Glass Manufacture 1953 (No Month) p. 61.

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