Patent ID: 7968266

Claim:
A toner composition comprising toner particles, wherein the toner particles comprise: a binder; a colorant; and optionally a wax; wherein the binder comprises a crystalline polyester resin and an amorphous acidic polyester resin, wherein the amorphous acidic polyester resin has an acid number of from 2.5 to 17 and is a copolyacrylic acid-copolyester resin, the crystalline polyester resin has an acid number of from 1 to 20, and the amorphous acidic polyester resin is prepared by reacting a polyacrylic acid homopolymer having a molecular weight of from 500 to 5000 grams/mole, with hydroxyl end groups of a branched polyester resin, wherein the branched polyester is prepared in the presence of a branching agent in an amount of from about 0.1 to about 5 mole % of the resin.