Neutral gray absorbing glass comprising manganese oxide for sele

Details Neutral gray absorbing glass comprising manganese oxide for sele Neutral gray absorbing glass comprising manganese oxide for sele

1993-12-17

1994-09-13

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

501 70, C03C 3087

Patent

active

053468678

ABSTRACT:
A neutral gray, heat absorbing soda-lime-silica glass having at 4 mm. control thickness a light transmittance using illuminant A of 10.0% to 55.0%, ultra violet transmittance less than 25.0%, and infra red transmittance is less than about 50.0% produced with colorants consisting of 0.90 to 1.90 percent by weight total iron oxide as Fe.sub.2 O.sub.3, 0.002 to 0.025 percent Co, 0.0010 to 0.0060 percent Se, 0.10 to 1.0 percent MnO.sub.2, and 0 to 1.0 percent TiO.sub.2. The flat glass products having such a composition is particularly suitable for use as a privacy glass or sun roof product in trucks and automobiles.

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