A resin composition having a softening point of from 80 to 165 C.,
obtained by reacting a poly C2-4 alkylene terephthalate having a melting
point of 200 C. or more with a low-molecular weight polyester having a number-average
molecular weight of from 400 to 2500; a resin binder for a toner comprising the
above resin composition; a toner comprising the above resin binder; a process for
preparing a resin composition having a softening point of from 80 to 165
C., comprising the step of reacting a poly C2-4 alkylene terephthalate
having a melting point of 200 C. or more with a low-molecular weight polyester
having a number-average molecular weight of from 400 to 2500. The resin composition
can be suitably used as a resin binder for a toner used for developing electrostatic
latent images formed in electrophotography, electrostatic recording method, electrostatic
printing, and the like.
