Dry developer for electrostatic image.

摘要

Dry developers for electrostatic images conventionally comprise molded particles of a dispersion of a binder medium, wax and pigment. However, there are problems due to the heterogeneous dispersion of the wax and pigment in the binder medium. These problems are now overcome by incorporating (A) a copolymer of an olefin and a polar group-containing, ethylenically unsaturated monomer and (B) a metal alkoxide of aluminum or titanium either as such or as a partial reaction product into said molded particles as a cross-linking agent.