Colored glass-ceramics having petalite and lithium silicate structures

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United States of America Patent

PATENT NO 11390558
APP PUB NO 20200377404A1
SERIAL NO

16884825

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Abstract

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A glass-ceramic article comprises a petalite crystalline phase and a lithium silicate crystalline phase. The weight percentage of each of the petalite crystalline phase and the lithium silicate crystalline phase in the glass-ceramic article are greater than each of the weight percentages of other crystalline phases present in the glass-ceramic article. The glass-ceramic article has a transmittance color coordinate in the CIELAB color space of: L*=from 20 to 90; a*=from −20 to 40; and b*=from −60 to 60 for a CIE illuminant F02 under SCI UVC conditions. In some embodiments, the colorant is selected from the group consisting of TiO2, Fe2O3, NiO, Co3O4, MnO2, Cr2O3, CuO, Au, Ag, and V2O5.

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Patent Owner(s)

Patent OwnerAddress
CORNING INCORPORATEDONE RIVERFRONT PLAZA CORNING NY 14831

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Beall, George Halsey Big Flats, US 116 1246
Fu, Qiang Painted Post, US 385 2528
Smith, Charlene Marie Corning, US 194 2361

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