Glaze for annealing surfaces

Details Glaze for annealing surfaces Glaze for annealing surfaces

2008-09-11

2010-12-07

Group, Karl E (Department: 1793)

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

C501S063000, C501S064000, C501S077000, C501S078000, C106S035000

Reexamination Certificate

active

07846858

ABSTRACT:
The invention concerns a glaze for annealing surfaces, particularly of ceramic parts used in the field of medicine, comprising the components 30 to 55% SiO2, 0 to 7% Al2O3, 10 to 30% R2O, 5 to 10% R′O, 0.5 to 15% B2O3, 5 to 10% Bi2O3, 1 to 10% P2O5, 0 to 5% Sb2O3, 0 to 5% SnO2, 0 to 5% TiO2and 5 to 10% ZrO2by mass, wherein (R) is one or several alkali metals and (R′) is one or several bivalent metals from the group comprising alkaline earth metals and zinc, and wherein the glaze is obtained by melting or sintering the components.

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