Partially crystallizing ceramic enamel composition containing bi

Details Partially crystallizing ceramic enamel composition containing bi Partially crystallizing ceramic enamel composition containing bi

1997-11-04

1999-10-19

Speer, Timothy

Stock material or miscellaneous articles

Composite

Of quartz or glass

428432, 428701, B32B 1700

Patent

active

059686596

ABSTRACT:
A ceramic enamel composition consists of an oxide frit, a bismuth silicate seed material, a pigment, and a vehicle. A preferred bismuth silicate seed material is selected from crystalline Bi.sub.12 SiO.sub.20, Bi.sub.4 (SiO.sub.4).sub.3, and Bi.sub.2 SiO.sub.5, and mixtures thereof. Upon firing a glass substrate coated with the enamel, components of the enamel adhere to the substrate. The glass can be formed with a die to a desired shape with reduced sticking of the coated region to the die. The ceramic enamel is particularly useful in providing a colored border around automotive glass, which enhances appearance and reduces degradation of adhesives by ultraviolet radiation.

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