Patent ID: 9128399
Filing Date: 2015-09-08
Classification: G03G

Abstract:
1. A toner for electrophotography comprising core-shell particles as a resin binder each comprising a core portion comprising an amorphous resin (A) having a softening point of 105° C. or lower which is obtained by polycondensing a carboxylic acid component comprising an alkenyl succinic acid in an amount of 10 mol % or more with an alcohol component; and a shell portion comprising an amorphous resin (B) obtained by polycondensing an alcohol component comprising an aliphatic diol having 2 to 6 carbon atoms with a carboxylic acid component comprising a trivalent or higher-valent polycarboxylic acid compound in an amount of from 1 to 20 mol %, wherein the amorphous resin (B) has a softening point higher, by not less than 1° C. but not more than 30° C., than the softening point of the amorphous resin (A).