| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide aqueous anionic resinous dispersions containing a pigment of a divalent metal and stabilizing these dispersions. <P>SOLUTION: In accordance with the invention, aqueous anionic resinous dispersions comprise a pigment of a divalent metal, particularly pigments of divalent metals that also contain chromium. Such pigments, such as strontium chromate, are stabilized by adding to the dispersion a chelating agent. The stabilized aqueous dispersions are particularly useful in the process of anionic electrodeposition, and more particularly, for electrodepositing corrosion resistant coatings over aluminum substrates. <P>COPYRIGHT: (C)2013,JPO&INPIT |
