Patent ID: 6409906
Filing Date: 2002-06-25
Classification: C25D

Abstract:
An acidic aqueous electroplating solution for electroplating a metallic coating onto an electrically conductive substrate, the coating comprising at least about 75 weight percent antimony, the solution containing from about 0.5 to about 120 g/l of antimony, an acid selected from the group consisting of hydrochloric acid, hydrofluoric acid, hydrobromic acid, hydroiodic acid, fluoboric acid, phosphoric acid, sulfamic acid in an amount at least sufficient to maintain the pH of the solution below about 6.0, a complexer selected from the group consisting of pyridine and pyridine derivatives, glycine, valine, cysterine, urea, and ammonium salts and a wetter selected from the group consisting of ethoxylated alcohols, alkanolamines, alkanolamides, alcohol sulfates, ethoxylated alkyl phenols, ethoxylated fatty acids, alkyl sulfonates, alkylsulfosuccinates, perfluoroalkyl sulfonates, fatty acid alcohol ethoxylates and propylene oxide/ethylene oxide block copolymers.