Water resistant metal pigment particles

摘要

PCT No. PCT/US92/11179 Sec. 371 Date Jun. 27, 1994 Sec. 102(e) Date Jun. 27, 1994 PCT Filed Dec. 23, 1992 PCT Pub. No. WO93/13175 PCT Pub. Date Jul. 8, 1993.Metal pigment particles treated with an organic phosphate or a pentavalent vanadium compound and a nitro-containing compound show increased stability against attack by water. The particles are especially useful in aqueous coating compositions. The nitro-containing compound also may be included in the vehicle of the coating composition separately from the paste of metal pigment particles.