Compositions: coating or plastic – Coating or plastic compositions – Marking
Patent
1975-02-10
1976-04-20
Douglas, Winston A.
Compositions: coating or plastic
Coating or plastic compositions
Marking
106 398, 106 53, 106 54, 106 52, 65 33, C03C 322, C03C 304
Patent
active
039516709
ABSTRACT:
Suppression of a high expansion cristobalite phase during sintering of high silica glass frits crystallizing in situ to predominantly a low-expansion .beta.-spodumene solid solution phase is accomplished by either melting a suppressant compound with the glass batch or adding the suppressant to the glass frit prior to sintering, the cristobalite suppressant being selected from the oxides of the alkali metals, the alkaline earth metals, yttrium, lanthanum, titanium, niobium, tantalum, boron, zinc, lead and antimony. The oxides with divalent and tetravalent cations are selected in quantities of up to about 0.02 moles of suppressant per 100 grams of glass and the other suppressants are selected in quantities up to about 0.01 moles per 100 grams of glass.
REFERENCES:
patent: 2998675 (1961-09-01), Olcott
patent: 3006775 (1961-10-01), Chen
patent: 3084053 (1963-04-01), Arlett et al.
patent: 3112184 (1963-11-01), Hollenbach
patent: 3157522 (1964-11-01), Stookey
patent: 3251403 (1966-05-01), Smith
patent: 3279931 (1966-10-01), Olcott
patent: 3600204 (1971-08-01), Beall et al.
patent: 3839001 (1974-10-01), Adams et al.
Bell Mark
Bissell Barry S.
Corning Glass Works
Douglas Winston A.
Patty, Jr. Clarence R.
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