Oblon, Spivak, McClelland, Maier & Neustadt
Binder for toner and process for producing the same
 A binder for toner comprising a styrene/(meth)acrylate copolymer obtained by polymerizing polymerizable vinyl monomers comprising styrene and/or its derivative and a (meth)acrylate by suspension polymerization of 0.001-3 wt. %, based on the total weight of the monomers used, of at least one polyvinyl alcohol having a degree of saponification of 75-98% and 1.0-10 wt. %, based on the total weight of the monomers used, of at least one azo initiator. According to the present invention, there is provided a binder for a toner which produces copied images having excellent stability of image quality (life) even after a large number of times of copying. 
Mitsubishi Rayon Co., Ltd.
G
G03G
inventional
Keiji Ryo Shinji Syuji Motoshi
Yoshida Funato Kubo Takahiro Inagaki