Patent ID: 7789958

Claim:
A corrosion-inhibiting pigment composition comprising: a corrosion-inhibiting pigment comprising manganese, and an inorganic valence stabilizer combined to form a manganese/valence stabilizer complex, wherein the manganese is in the trivalent oxidation state, tetravalent oxidation state, or combinations thereof in the manganese/valence stabilizer complex, and wherein the manganese/valence stabilizer complex has a solubility in water of between about 1×10 0 and about 1×10 −17 moles per liter of manganese at about 25° C. and about 760 Torr, and wherein the manganese/valence stabilizer complex has a central cavity containing a manganese ion and an additional ion; 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 the valence stabilizer is not oxygen or hydroxide.