| 摘要 |
PURPOSE:To improve dispersibility, durability, etc., by coating the surface of ferromagnetic iron oxide powder with organic acid metallic salt. CONSTITUTION:The surface of ferromagnetic iron oxide powder is coated with organic acid metallic salt, such as Co, Ni, Mn, Cr, Zn, Cd, Pb, Sn, Al, and Li, e.g. fatty acid, etc. oxycarboxylic acid, etc., carboxylic acid mixture, etc., and then resin containing active hydrogen and a crosslinking agent are both applied onto a base obtain a magnetic recording medium. |
