Additive composition for making dental materials

Details Additive composition for making dental materials Additive composition for making dental materials

1975-01-07

1976-08-10

Morris, Theodore

Compositions: coating or plastic

Coating or plastic compositions

Dental

106 45, 106 58, C09K 300, C04B 3300

Patent

active

039739708

ABSTRACT:
Addition of ammonium stabilized colloidal silica, borax and boric acid to the distilled water in which dental porcelain is fired greatly increases the firing range by reducing "balling" or edge rounding, and flow deformation. Greatly increased machinability and indefinitely prolonged green-biscuit strength is also obtained by the use the present additive without deleterious effects on the porcelain.

REFERENCES:
patent: 2897595 (1959-08-01), Lee
patent: 3704146 (1972-11-01), Dulat
patent: 3880662 (1975-04-01), Daskalon
Chem. Abst., 62:282g.

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