Coating processes – Fraud or tamper detecting
Patent
1983-12-12
1985-07-09
Rutledge, L. Dewayne
Coating processes
Fraud or tamper detecting
427 2, 427216, 427217, 427437, 106 123, C23C 300, A61K 502
Patent
active
045282072
ABSTRACT:
Dental alloy particles having a coating of a silver-tin alloy are prepared by a process comprising codepositing silver and tin from a cyanide based plating solution containing silver and tin ions on a particulate metal substrate having a particle size sufficient to allow integral bonding between the alloy layer and the particulate substrate.
REFERENCES:
patent: 2735788 (1956-02-01), Lowenheim et al.
patent: 3337350 (1967-08-01), Hata et al.
patent: 3738920 (1973-06-01), Viglione
patent: 4046643 (1977-09-01), Rippere
Skoog, D. A. et al., Fundamentals of Analytical Chemistry, Holt, Rinehart and Winston, Inc., pp. 813-815 (1969).
Leidheiser, H., et al., "Pulse Electroplating of Ag-Sn Alloys and the Formation of Ag.sub.3 Sn", J. Elec. Chem. Soc., Elec. Science and Tech., pp. 484-487 (1973).
46th Guidebook Directory for Metal Finishing, Metal Finishing, pp. 314-315, (1978).
Rutledge L. Dewayne
The University of Virginia Alumni Patents Foundation
Zimmerman John J.
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