US 7,507,513 B2
Toner composition
Yuhua Tong, Webster, N.Y. (US); Chieh-Min Cheng, Rochester, N.Y. (US); Louis V. Isganitis, Rochester, N.Y. (US); Eunhee Lee, Honeoye Falls, N.Y. (US); and Zhen Lai, Webster, N.Y. (US)
Assigned to Xerox Corporation, Stamford, Conn. (US)
Filed on Dec. 13, 2005, as Appl. No. 11/301,552.
Prior Publication US 2007/0134577 A1, Jun. 14, 2007
Int. Cl. G03G 9/08 (2006.01)
U.S. Cl. 430—108.1  [430/110.1; 430/137.14] 8 Claims
OG exemplary drawing
 
1. A toner comprising a colorant, optionally one or more components selected from the group consisting of surfactants, coagulants, waxes, surface additives, and optionally mixtures thereof, and copolymer encapsulated wax particles formed by contacting a wax dispersion, at least two monomers, a surfactant, and a stabilizer of the following formula:

OG Complex Work Unit Drawing
where R1 is hydrogen or methyl group; R2 and R3 are independently selected from alkyl groups containing about 1 to about 12 carbon atoms and a phenyl group; and n is from about 0 to about 20;
forming copolymer encapsulated wax particles by emulsion polymerization of the at least two monomers to form a copolymer shell around a branched wax core; and,
recovering the copolymer encapsulated wax particles,
wherein the wax in the wax dispersion possesses side chains.