Process for preparing a copper containing sealing glass

Details Process for preparing a copper containing sealing glass Process for preparing a copper containing sealing glass

1975-04-28

1976-09-28

Bashore, S. Leon

Glass manufacturing

Processes

Forming product or preform from molten glass

65 32, 65 36, 65 43, 65 86, 65134, 65121, 106 47R, 106 47Q, 106 53, C03B 900, C03B 2320, C03B 516, C03C 300

Patent

active

039829189

ABSTRACT:
A copper oxide containing seal glass is formed by a controlled low temperature process which reduces the formation of seeds in the glass. In one embodiment the glass is prepared in two portions with the first portion containing the high melting oxides and the second portion containing the low melting oxides. The copper oxide is added to the second portion and the two portions are combined to form the seal glass at temperatures below about 800.degree.C which reduces the formation of Cu.sub.2 O crystals in the glass.

REFERENCES:
patent: 2922720 (1960-01-01), Parks
patent: 3443921 (1969-05-01), Bolvent
patent: 3639113 (1972-02-01), Aslanova et al.
patent: 3759727 (1973-09-01), Dietz
patent: 3807043 (1974-04-01), Hikino
patent: 3892904 (1975-07-01), Tanaka
patent: 3904426 (1975-09-01), Frieser et al.

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