| abstract |
Disclosed is a crosslinked polyester resin comprised of, based on the total acid units, (a) 1 to 30 mole % of units of a trihydric or higher alcohol or units of a trivalent or higher carboxylic acid, (b) 1 to 60 mole % of units of an alicyclic diol in which at least one alcohol component is a secondary alcohol, (c) 40 to 100 mole % of units of an aromatic dicarboxylic acid and (d) 40 to 99 mole % of units of a non-alicyclic diol, wherein the acid value is 0.5 to 25 mg-KOH/g, the glass transition temperature is 50° to 80° C., the softening temperature is not higher than 145° C., the fixing-possible temperature covers a range of at least 30° C., and the difference between the softening temperature and the glass transition temperature is not larger than 75° C. The crosslinked polyester is used for toner for electrostatic recording. |