Sealing glass

Compositions: coating or plastic – Coating or plastic compositions – Metal-depositing composition or substrate-sensitizing...

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C03C 314

Patent

active

042735858

ABSTRACT:
A sealing glass composition having a thermal coefficient of expansion (from room temperature to 300.degree. C.) of about 90.times.10 -7/.degree.C. and a softening temperature of about 406.degree. C. is provided and consists essentially of the following ingredients in the following proportions: PbO, 66%; B.sub.2 O.sub.3, 18%; ZnO, 15%; and Fining Agent, 1%.

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patent: 3966449 (1976-06-01), Foster et al.
patent: 4004936 (1977-01-01), Powell
Takamori et al.; "Role of Copper Ions in Low Melting Solder Glasses" Journal of American Ceramic Society, vol. 59, No. 7-8, pp. 312-316.

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