Opacification of optically variable pigments for use in waterborne coating compositions

摘要

The present invention is a composition comprising an optically variable pigment modified with metal salt selected from the group consisting of salts of transition metals having atomic numbers 21-28; 39-42; 57 and 72-74; and salts of the lanthanide series of rare earth metals having atomic numbers of from 58 to 71. The invention also includes a method for forming the surface treated pigments and coating compositions containing the pigments.