Coating processes – With post-treatment of coating or coating material – Heating or drying
Patent
1974-08-20
1976-01-27
Kendall, Ralph S.
Coating processes
With post-treatment of coating or coating material
Heating or drying
427328, 427437, 427438, 427242, 427307, 148 614R, 148 62, C23C 302
Patent
active
039353451
ABSTRACT:
A method of electroless plating together with electroless plating solutions for plating the substrate of a transition metal capable of forming metal peroxides such as molybdenum or tungsten with a layer of metal plate such as chromium, cobalt, nickel or rhodium. The plating process features an oxidation and reduction reaction in which unstable surface oxides on the substrate of the transition metal are replaced by the desired metal plate. The method of the invention provides an oxygen impervious plate which protects against oxidation of the metal substrate and eliminates oxide migration as well as providing an improved metal-to-metal plate bond.
REFERENCES:
patent: 2317205 (1943-04-01), Lowit
patent: 3386896 (1968-06-01), Finne
patent: 3505095 (1970-04-01), Petit et al.
patent: 3741735 (1973-06-01), Buttle
Kendall Ralph S.
Smith John Douglas
Unitrode Corporation
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