Coating processes – With pretreatment of the base – Preapplied reactant or reaction promoter or hardener
Reexamination Certificate
2006-12-12
2006-12-12
Meeks, Timothy (Department: 1762)
Coating processes
With pretreatment of the base
Preapplied reactant or reaction promoter or hardener
C427S304000, C427S301000, C427S299000
Reexamination Certificate
active
07147896
ABSTRACT:
An electroless nickel plating method for the preparation of zirconia ceramic material. The surface of the zirconia ceramic material is first cleaned of contaminants. This is followed by an etching step where the surface of the material is etched by an acid. Then, activating the surface of the material is achieved by first applying a tin sensitizer, and then a palladium activator. Following the palladium activator step, applying an electroless nickel to the surface of the post activated material. After the electroless nickel bath, the zirconial ceramic material can then be further electroless or electrolytically plated with a variety of finishes. Applying the method of the present invention provides a suitable, commercially practicable method for the preparation of zirconia ceramic material for electroless nickel plating, so that the electroless nickel chemistry is distributed evenly on the material's surface.
REFERENCES:
patent: 3681209 (1972-08-01), Campbell et al.
patent: 3926570 (1975-12-01), Wilks et al.
patent: 4473410 (1984-09-01), Grubb et al.
patent: 5149420 (1992-09-01), Buxbaum et al.
Abramowitz Howard
Meeks Timothy
Price, Esq. Gary K.
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