Low melting glass, sealing composition and sealing paste

Details Low melting glass, sealing composition and sealing paste Low melting glass, sealing composition and sealing paste

2007-11-06

2007-11-06

Green, Anthony J. (Department: 1755)

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

C501S011000, C501S014000, C501S015000, C501S017000, C501S018000, C501S020000, C501S026000, C501S052000

Reexamination Certificate

active

11262746

ABSTRACT:
A low melting glass, which contains substantially no lead and contains 70-90% of Bi2O3, 1-20% of ZnO, 2-12% of B2O3, 0.1-5% of Al2O3, 0.1-5% of CeO2, 0-5% of CuO, 0-0.2% of Fe2O3and 0.05-5% of CuO+Fe2O3in mass %, wherein a content of alkali metal oxides in the glass composition is less than 0.1%, and the glass does not crystallize by pre-baking at a sealing temperature or more, can be used for sealing later, and can suppress deterioration of a material such as platinum or platinum-rhodium to provide a stable melting operation for a long period.

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