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US 2009/0155703 A1Published application
Toner compositions and processes
AssigneeXerox Corporation
InventorsGeurino G. SACRIPANTE, Chieh-Min CHENG, Gwynne E. MCANENEY LANNEN
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Abstract
A toner composition includes toner particles including a polymeric resin, a colorant, a wax, and a optional coagulant.
Claims20
An Emulsion Aggregation toner composition comprised of:
- toner particles comprising:
- a semicrystalline biodegradable polyester resin;
- a colorant;
- a wax;
- and
- a coagulant;
- wherein said toner composition is an emulsion aggregation toner composition.
4 more elements
A process for preparing an Emulsion Aggregation toner, comprising:
- mixing a semicrystalline biodegradable polyester resin emulsion;
- a colorant dispersion, and a wax to form a mixture;
- adding a coagulant to said mixture;
- adding an organic or an inorganic acid to said mixture;
- heating the mixture, permitting aggregation and coalescence of said semicrystalline biodegradable polyester resin, and mixtures thereof, colorant, and wax, to form toner particles, optionally cooling the mixture and isolating the toner particles.
2 more elements
Dependencies are inferred from the claim text.