Ink jettable toner compositions and processes for making and using
AssigneeXerox Corporation
InventorsBarkev Keoshkerian, Michael K. Georges, Stephan V. Drappel
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Abstract
A process for the preparation of toner compositions comprising: forming a mixture comprised of at least one free radical reactive monomer, a colorant, a stabilizer compound containing a stable free radical reactive group, and a liquid vehicle; and heating the mixture from about 75.degree. to about 200.degree. C. to effect polymerization of said monomer, wherein there results stabilized core resin particles containing said colorant and wherein said stabilized core particles are stabilized by said stable free radical reactive stabilizer compounds being bonded directly to the core particles.
Claims21
A process for the preparation of toner compositions comprising:
- forming a mixture comprised of at least one free radical reactive monomer, a colorant, a polymeric stabilizer compound containing a covalently bonded stable free radical reactive group, and a liquid vehicle;
- and heating the mixture from about 75.degree. to about 200.degree. C. to effect polymerization of said monomer, wherein there results stabilized core resin particles containing said colorant and wherein said stabilized core particles are stabilized by said polymeric stabilizer compounds being bonded directly to the core particles.
A process for the preparation of toner compositions comprising heating a mixture of core polymeric resin particles, at least one polymeric stabilizer compound containing a covalently bonded and thermally labile stable free radical reactive group, and optionally a liquid vehicle to afford stabilized toner particles.
A process for the preparation of toner compositions comprising:
- heating a mixture of at least one free radical reactive pigment particle and a reactive polymeric stabilizer compound containing a covalently bonded and thermally labile stable free radical reactive group to afford sterically stabilized, and optionally electrostatically stabilized, passivated pigment particles wherein the stabilized pigment particles have at least one polymeric stabilizer compound bonded directly thereto;
- dispersing and then heating the stabilized passivated pigment particles and at least one free radical reactive monomer in a suspending liquid vehicle to form stabilized resin particles containing the stabilized pigment particles, and wherein the stabilized pigment particles provide a loci and source of pseudoliving free radical species which polymerize the free radical reactive monomers thereto.
Dependencies are inferred from the claim text.