Noble metal alloys for dental uses

Details Noble metal alloys for dental uses Noble metal alloys for dental uses

1985-02-22

1986-05-27

Rutledge, L. Dewayne

Alloys or metallic compositions

Palladium base

420464, 420508, 420512, 420580, 420581, 420582, 420587, 420589, 433207, C22C 502, C22C 504, C22C 3000

Patent

active

045914834

ABSTRACT:
There are described noble metal alloys for dental purposes, especially for firing on dental porcelain which are low melting, do not discolor the porcelain, are repeatedly castable, and making possible brazing joints. These alloys containing 20 to 65% gold, 25 to 65% palladium, 0 to 7% gallium, 0.2 to 11% indium and/or tin, 0 to 2% copper, 0.05 to 1% ruthenium, iridium and/or rhenium, 0 to 1% vanadium, 0 to 1% iron and additionally 0.5 to 15% cobalt, with the proviso that the content of base metals must exceed 5%.

REFERENCES:
patent: 4123262 (1978-10-01), Cascone
patent: 4179286 (1979-12-01), Knosp
patent: 4201577 (1980-05-01), Ingersoll et al.
patent: 4205982 (1980-06-01), German
patent: 4400350 (1983-08-01), Wagner
patent: 4419325 (1983-12-01), Prasad
patent: 4451639 (1984-05-01), Prasad

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