Infrared and ultraviolet ray absorbing glass

Details Infrared and ultraviolet ray absorbing glass Infrared and ultraviolet ray absorbing glass

1993-08-27

1994-11-08

Group, Karl

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

501 72, 501904, 501905, C03C 3087, C03C 410

Patent

active

053626893

ABSTRACT:
An infrared and ultraviolet ray absorbing glass suitable for use in building and vehicle windows, which comprises, on a weight basis, 68-72% SiO.sub.2, 1.6-3.0% Al.sub.2 O.sub.3, 8.5-11.0% CaO, 2.0-4.2% MgO, 12.0-16.0% Na.sub.2 O, 0.5-3.0% K.sub.2 O, 0.08-0.30% SO.sub.3, 0.58-0.80% total iron expressed as Fe.sub.2 O.sub.3, 0.10-0.60% CeO.sub.2, 0.10-0.40% TiO.sub.2 and 5-350 ppm MnO. In the glass the ratio of ferrous iron to ferric iron is from 0.3 to 0.7. The glass has a greenish tint and is well balanced in visible light transmittance, infrared radiation absorption and ultraviolet radiation absorption. The glass can easily be produced as a sheet glass by the conventional float process without significantly varying the melting and refining operation conditions, and the glass sheet can readily be tempered by a conventional method.

REFERENCES:
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patent: 4285728 (1981-08-01), Babcock et al.
patent: 4701425 (1987-10-01), Baker et al.
patent: 4792536 (1988-12-01), Pecoraro
patent: 5013487 (1991-05-01), Cheng
patent: 5030593 (1991-07-01), Heithoff
patent: 5069826 (1991-12-01), Cheng
patent: 5071796 (1991-12-01), Jones et al.
patent: 5077133 (1991-12-01), Cheng
W. A. Weyl, "Coloured Glasses," Society of glass technology, 1967, pp. 115-116.
Chem. Abstr., vol. 59, No. 8(1963) col. 8459.
Kocik et al.; Sprechsaal, vol. 120, No. 7 Germany (1987), 586-588 Beispiele der Zusammensetzung von Fabglasern.
Kocik et al.; Sprechsaal, vol. 121, No. 1, Germany (1988), 42-44 Beispiele der Zusammensetzung von Farbglasern.

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