Process for applying resinous coating to metal surface

A process for applying a resinous coating to a metal surface comprising immersing the surface in an acidic aqueous coating composition comprising about 5 to about 550 g/l of solid resin particles, and of pH within the range of about 1.6 to about 5 and prepared from hydrofluoric acid, and including metal selected from the group consisting of chromium, cobalt, copper, silver, cadmium, tin, lead, and ferrous iron, the source of said metal being about 0.025 to about 50 g/l of a metal-containing compound which is soluble in said composition and contains said metal, said composition being effective in forming on said metal surface a resinous coating which increases in weight or thickness the longer said surface is immersed in said composition, and withdrawing the resinous coated surface from said composition.

A process for applying a resinous coating to a metal surface comprising immersing the surface in an acidic aqueous coating composition comprising about 5 to about 550 g/l of solid resin particles, and of pH within the range of about 1.6 to about 5 and prepared from hydrofluoric acid, and about 0.025 to about 50 g/l of a metal-containing compound which is soluble in said composition, the metal of said compound selected from the group consisting of non-ferric transition elements and Group IV elements of the Periodic Table, said composition being effective in forming on said metal surface a resinous coating which increases in weight or thickness the longer said surface is immersed in said composition, and withdrawing the resinous coated surface from said composition.

A process for applying a resinous coating to a metal surface comprising immersing the surface in an acidic aqueous coating composition comprising about 5 to about 550 g/l of solid resin particles, and of pH within the range of about 1.6 to about 5 and prepared from about 0.025 to about 50 g/l of a metal-containing compound which is soluble in said composition, the metal of said compound selected from the group consisting of silver, iron in its divalent state, copper in its divalent state, cobalt in its divalent state, cadmium, tin in its divalent state and lead in its tetravalent state, said composition being effective in forming on said metal surface a resinous coating which increases in weight or thickness the longer said surface is immersed in said composition, and withdrawing the resinous coated surface from said composition.

A process for applying a resinous coating to a metal surface comprising contacting the surface with an acidic aqueous coating composition comprising about 5 to about 550 g/l of solid resin particles, and of pH within the range of about 1.6 to about 5 and including metal selected from the group consisting of cobalt, copper, silver, cadmium, tin, lead, and ferrous iron, the source of said metal being a metal-containing compound which is soluble in said composition and contains said metal, said composition being effective in forming on said metal surface a resinous coating which increases in weight or thickness the longer said surface is contacted with said composition.

A process for applying a resinous coating to a metal surface comprising contacting the surface with an acidic aqueous coating composition comprising about 5 to about 550 g/l of solid resin particles anionically stabilized, and of pH within the range of about 1.6 to about 5 and prepared from a metal-containing compound which is soluble in said composition, the metal of said compound selected from the group consisting of non-ferric transition elements and Group IV elements of the Periodic Table, said composition being effective in forming on said metal surface a resinous coating which increases in weight or thickness the longer said surface is contacted with said composition.

A process for applying a resinous coating to a metal surface comprising contacting the surface with an acidic aqueous coating composition comprising about 5 to about 550 g/l of solid resin particles, the resin being selected from the group consisting of styrene-butadiene, acrylic copolymers, acrylonitrile-butadiene, ethylene-vinyl acetate, polyethylene, and polyacrylic acid, and of pH within the range of about 1.6 to about 5 and prepared from a metal-containing compound which is soluble in said composition, the metal of said compound selected from the group consisting of non-ferric transition elements and Group IV elements of the Periodic Table, said composition being effective in forming on said metal surface a resinous coating which increases in weight or thickness the longer said surface is contacted with said composition.