Patent ID: 7368046

Claim:
A method for the production of a composite multilayer material having a backing layer, a bearing metal layer of a copper alloy or an aluminum alloy, a nickel intermediate layer and an overlay consisting of about 0-20wt. % copper and about 0-20wt. % silver, the combined maximum wt. % of copper and silver being about 20wt. %, the rest being bismuth, and the layer thickness of the nickel layer amounts to more than 4 μm by electrodeposition, in which the overlay is deposited from an aqueous-based electrolyte system comprising: 20-100 g/l bismuth methanesulfonate, 0.1-30 g/l copper methanesulfonate, 0.1-2 g/l silver methanesulfonate, 80-250 g/l methanesulfonic acid, 20-100 g/l nonionic wetting agent, 5-40 g/l grain refining agent, 1-4 g/l resorcinol, and 30-150 g/l thiourea.