Alloys or metallic compositions – Platinum base – Rhodium containing
Patent
1998-10-15
2000-06-06
Yee, Deborah
Alloys or metallic compositions
Platinum base
Rhodium containing
148430, C22C 504
Patent
active
060714719
ABSTRACT:
A platinum alloy has a white finish and comprises platinum, rhodium and ruthenium, with the platinum being present at a concentration of about 95% by weight, the rhodium being present at a concentration from about 2.5% to about 3.5% by weight, with increasing whiteness and workability at 3.5% Rh, and the ruthenium being present at a concentration correspondingly from about 1.5% to about 2.5% by weight, with the preferred composition being at about 1.5% by weight. In addition, methods of preparing the alloy and aesthetic items made with the alloy are included.
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Chem. Abstract (105:157438) JP 61034138, Feb. 18, 1986.
Harry Winston Inc.
Squire William
Yee Deborah
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