The invention provides coatings useful for preventing corrosion of metals.
The coatings comprise a film-forming resin and conductive polymers
comprising linearly conjugated .pi.-systems and residues of sulfonated
lignin or a sulfonated polyflavonoid or derivatives of solfonated lignin
or a sulfonated polyflavonoid. The invention also provides a latex
formulation of the coatings, and articles of manufacture comprising a
metal substrate and a coating in contact with the metal substrate.