Alkali-free glasses

Details Alkali-free glasses Alkali-free glasses

1975-02-10

1977-03-15

Garvin, Patrick P.

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

C03C 304

Patent

active

040122638

ABSTRACT:
Glass compositions, free of alkali metal, are disclosed which are suitable for a wide variety of purposes, particularly in the electronics industry. The glasses have good working properties and resist uncontrolled devitrification. Characterized by low to moderate thermal expansion properties, the glass compositions generally contain the following components expressed as oxides in the indicated amounts based on the total weight of the composition:

REFERENCES:
patent: 3305371 (1967-02-01), de Lajarte
patent: 3496401 (1970-02-01), Dumbaugh
patent: 3562184 (1971-02-01), Dodd
patent: 3578470 (1971-05-01), Bahat et al.
patent: 3673049 (1972-06-01), Giffen et al.
patent: 3837978 (1974-09-01), Busdiecker
patent: 3840394 (1974-10-01), Eppler
Thomas, R. H., "Phase Equilibrium in a Portion of the Ternary System BaO-Al.sub.2 O.sub.3 -SiO.sub.2," Journal American Ceramic Society, vol. 33, No. 2, 1950, pp. 35-44.

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