Dental composition from gold particles, terpineol and ethyl cell

Details Dental composition from gold particles, terpineol and ethyl cell Dental composition from gold particles, terpineol and ethyl cell

1979-10-09

1982-04-27

Anderson, Harold D.

Compositions: coating or plastic

Coating or plastic compositions

Dental

433200, C08K 308, C08K 505

Patent

active

043268897

ABSTRACT:
Essentially spherical gold particles are mixed with an evaporatable or combustible paste-forming material, for example terpineol and ethylcellulose, the gold being, by weight, 75% to 95%, spherical, and having a diameter of between 0.8 to 1.2 .mu.m, with a maximum particle diameter of 2 .mu.m. The gold is mixed with the additives to form a paste, just before being applied at a thickness of from between 5 to 30 .mu.m on a dental prosthesis, preferably about 10 to 20 .mu.m, and then fired at a temperature of between about 950.degree. C. to 1070.degree. C. for a period of between 2-5 minutes, preferably about 960.degree. to 1000.degree. C. of from between 2-3 minutes, providing an excellent base for application of a porcelain layer thereto.

REFERENCES:
patent: 324650 (1885-08-01), Buatt
patent: 1040838 (1912-10-01), Alexander
patent: 2980998 (1961-04-01), Coleman et al.
patent: 4162163 (1979-07-01), Subelka

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