Patent ID: 8278020

Claim:
A process comprising: contacting at least one unsaturated polyester with at least one epoxidizing agent selected from the group consisting of peroxyacids, peroxyphthalates, hydrogen peroxide with a suitable catalyst, and combinations thereof to form an epoxidized polyester resin; wherein the epoxidized polyester resin has a melting point of from about 58° C. to about 80° C., a number average molecular weight of from about 3,000 g/mol to about 50,000 g/mol, and a weight average molecular weight of from about 10,000 g/mol to about 100,000 g/mol; contacting the epoxidized polyester resin with at least one colorant, an optional wax, and an optional surfactant to form toner particles; and recovering the toner particles.