Patent ID: 6022624
Filing Date: 2000-02-08
Classification: C03C

Abstract:
A glass substrate having an adherent ceramic enamel coating, said substrate being prepared in accordance with the method which comprises:applying to a glass substrate a ceramic enamel composition comprising:40-80% by weight of at least one lead-free metal oxide glass frit containing precursors of Zn.sub.2 SiO.sub.4, wherein the sum of the weight percentage amounts of said precursors of Zn.sub.2 SiO.sub.4 in said lead-free metal oxide frit is less than about 35% by weight of said lead-free metal oxide frit;0.05-15% by weight of a zinc silicate seed material; and19-37% by weight of a pigment, wherein the sum of the weight percentage amounts of said at least one lead-free metal oxide frit, zinc silicate seed material, and pigment does not exceed 100%, andheating the coated glass substrate to an elevated temperature to fuse components of the ceramic enamel composition to the glass substrate.