Neutral gray glass composition

Details Neutral gray glass composition Neutral gray glass composition

1992-07-02

1994-01-11

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

C03C 3087

Patent

active

052781089

ABSTRACT:
A neutral, gray colored, nickel having a medium visible light transmittance between about 30 and percent, and low total solar energy and ultraviolet radiation transmittance, is produced with colorants comprising 0.40 to 0.58 percent by weight total iron expressed as Fe.sub.2 O.sub.3 (22 to 26 percent reduced to FeO), 0.006 to 0.018 Co.sub.3 O.sub.4, and 0.0006 to 0.0015 percent Se. The glass product having such a composition is particularly suitable for architectural applications.

REFERENCES:
patent: 2900264 (1959-08-01), Brown
patent: 4101705 (1978-07-01), Fischer et al.
patent: 4104076 (1978-08-01), Pons
patent: 4339541 (1982-07-01), Dela Ruye
patent: 5023210 (1991-06-01), Krumwiede et al.
patent: 5030593 (1991-07-01), Heithoff
patent: 5070043 (1991-12-01), Amundson et al.
patent: 5070048 (1991-12-01), Boulos et al.
patent: 5190896 (1993-03-01), Pucilowski et al.

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