Back to results
US 4,259,409 AGranted
Electroless plating process for glass or ceramic bodies and product
AssigneeSes S.A.
InventorAnthony F. Arnold
Life of this patent
Estimating the term…
Abstract
Strongly adherent layers of electroless metals on glass or ceramic substrates are obtained by first applying a film of an alkali metal silicate solution containing dissolved therein a catalytically effective amount of nickel, palladium or platinum to the substrate, drying and firing the film onto the substrate and electroless plating the coated substrate.
Claims12
A process for producing an adherent layer of electroless metal on a glass or ceramic substrate which comprises:
- (a) applying to the substrate at least one coat of an alkali metal silicate solution containing dissolved therein an amount of metal salt selected from nickel, palladium or platinum salts which upon reduction is catalytically effective for activating the deposition of metal from an electroless plating bath
- (b) drying the coated substrate;
- (c) heating the coated substrate at a temperature ranging between about 150.degree. C. to about 500.degree. C.;
- and
- (d) electrolessly plating the resultant silicate coated substrate using an electroless plating bath having a pH of less than about 10.5.
2 more elements
Dependencies are inferred from the claim text.