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US 4,735,772 AGranted
Palladium-cobalt alloys; manufacture of a root cap
AssigneeElephant Edelmetaal B.V.
InventorJoseph M. van der Zel
Life of this patent
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Abstract
The invention relates to magnetic Pd-Co alloys for use in dental prostheses, in particular in root caps. The alloys contain, by weight, 40-60% Pd, 20-59% Co, 0-40% Ni, 0.1-5% Cr, 0.05-0.2% Re, 0.01-0.5% Fe, 0.5-3% Ga, 0-0.1% B, 0-5% Pt or Au, and the gallium may be replaced, in full or in part, by Sn, In, Zn or Mn.
Claims14
Palladium-cobalt alloys consisting essentially of, by weight,
- 40-60% palladium,
- 20-59% cobalt,
- 0-40% nickel,
- 0.1-5% chromium,
- 0.5-0.2% rhenium,
- 0.01-0.5% iron
- 0.5-3% of at least one element selected from the group consisting of gallium, tin, indium, zinc and manganese,
- 0-0.1% boron, and
- 0-5% of at least one metal selected from the group consisting of platinum and gold.
6 more elements
Dependencies are inferred from the claim text.