UN METODO DE DEPOSITAR CINC DE UN BANO ELECTROLITICO DE CINC ALCALINO.

摘要

An alkaline electroplating bath comprising alkali metal zincate, and an effective zinc brightening amount of a bath soluble multiple quaternary compound which is the reaction product of a polyalkylene imine and an organic ammonium halide which contains a halogen which will quaternarize a nitrogen of the polyalkylene imine.