| 摘要 |
PURPOSE:To obtain the magnetic carrier particles capable of performing a good magnetic brushing phenomenon by coating a surface of the magnetic particles with a specific synthetic resin. CONSTITUTION:The surfaces of the magnetic particles are coated with the synthetic resin which is obtd. by emulsion-polymerizing a monoethylenic monomer using a sort or two or more than two sorts of polymerization emulsifiers selected from the group comprising an allylalcohol derivative, an acrylic acid derivative, an itaconic acid derivative, a maleic acid derivative, a fumaric acid derivative, an ethylene derivative and a styrene derivative. Thus, the titled particle having the good characteristics such as the stabilized electoresistance and the good flowability and capable of optionally controlling the frictional electrification, and having a sufficient anti-moisture property and a durability may be obtd., thereby enabling the good magnetic brushing phenomenon. |
