Patent ID: 7833331

Claim:
A corrosion-inhibiting pigment composition comprising: a corrosion-inhibiting pigment comprising cobalt, wherein the cobalt is trivalent cobalt, tetravalent cobalt, or combinations thereof, and a valence stabilizer combined to form a cobalt/valence stabilizer complex, wherein the valence stabilizer forms a shell around the cobalt, and wherein the cobalt in is the trivalent or tetravalent oxidation state in the pigment, wherein the cobalt/valence stabilizer complex has a solubility in water of between about 1×10 −1 and about 5×10 −5 moles per liter at about 25° C. and about 760 Torr; an optional solubility control agent; and a coating system comprising a carrier system and a binder system, or a carrier system and a resin system, or both; with the proviso that none of the valence stabilizer is hydroxide.