Menetelmä sähkövalokuvauksen värijauheessa käyttökelpoisen sideainehartsin valmistamiseksi

摘要

The present invention relates to a process for producing a partially crosslinked binder resin which can be used for an electrophotographic tinting agent, with the process comprising: 1) producing a partially crosslinked polymer by means of a non-crosslinking emulsion polymerization of an aromatic vinyl monomer, and acrylic monomer and a cyanide compound in a linear structure, and a crosslinking polymerization of an aromatic vinyl monomer, an acrylic monomer, a cyanide compound and an unsaturated carboxylic acid or an unsaturated monomer which contains an epoxy group; and 2) coagulating the polymer latex which is obtained in stage 1 in the presence of a water-soluble amine.