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Guerino G Sacripante, James M Duff, Grazyna Kmiecik Lawrynowica, Raj D Patel: Microsuspension processes for toner compositions. Xerox Corporation, E O Palazzo, March 1, 1994: US05290654 (463 worldwide citation)

A process for the preparation of toner compositions which comprises dissolving a polymer, and optionally a pigment in an organic solvent; dispersing the resulting solution in an aqueous media containing a surfactant, or mixture of surfactants; stirring the mixture with optional heating to remove the ...


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Chin H Lu: Quarternary ammonium sulfate or sulfonate charge control agents for electrophotographic developers compatible with viton fuser. Xerox Corporation, E O Palazzo, July 6, 1982: US04338390 (392 worldwide citation)

This invention is directed to a dry electrostatic toner composition containing a resin, a colorant or pigment, and an organic sulfate or sulfonate charge control additive of the following formula: ##STR1## wherein R.sub.1 is an alkyl radical containing from about 12 carbon atoms to about 22 carbon a ...


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Grazyna E Kmiecik Lawrynowicz, Raj D Patel: Toner emulsion aggregation process. Xerox Corporation, E O Palazzo, May 23, 1995: US05418108 (334 worldwide citation)

A process for the preparation of toner compositions with controlled particle size and selected morphology comprising


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Ah Mee Hor, Rafik O Loutfy: Photoconductive imaging members with perylene pigment compositions. Xerox Corporation, E O Palazzo, May 6, 1986: US04587189 (327 worldwide citation)

Disclosed is an improved layered photoresponsive imaging member comprised of a supporting substrate; a vacuum evaporated photogenerator layer comprised of a perylene pigment selected from the group consisting of a mixture of bisbenzimidazo(2,1-a-1',2'-b)anthra(2,1,9-def:6,5,10-d'e'f')diisoquinoline ...


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Guerino G Sacripante, Grazyna E Kmiecik Lawrynowicz: Toner processes. Xerox Corporation, E O Palazzo, May 3, 1994: US05308734 (312 worldwide citation)

A process for the preparation of toner compositions which comprises generating an aqueous dispersion of toner fines, ionic surfactant and nonionic surfactant, adding thereto a counterionic surfactant with a polarity opposite to that of said ionic surfactant, homogenizing and stirring said mixture, a ...


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Grazyna E Kmiecik Lawrynowicz, Raj D Patel, Michael A Hopper: Process of making toner compositions. Xerox Corporation, E O Palazzo, September 6, 1994: US05344738 (296 worldwide citation)

A process for the preparation of toner compositions with a volume median particle size of from about 1 to about 25 microns, which process comprises:


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Raj D Patel, Grazyna E Kmiecik Lawrynowicz, Michael A Hopper: Toner emulsion aggregation processes. Xerox Corporation, E O Palazzo, December 6, 1994: US05370963 (294 worldwide citation)

A process for the preparation of toner compositions with controlled particle size comprising:



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