Xerox Corporation

James R Combes

Karen Ann Moffat

Maria N V McDougall

Hadi K Mahabadi

Rina Carlini

Carl P Tripp

Edward Graham Zwartz

Dan A Hays

Armin R Volkel

Roger N Ciccarelli

Jack T LeStrange

Jaan Noolandi

Jacques C Bertrand

Thomas R Pickering

Denise R Bayley

David N MacKinnon

Naveen Chopra

Peter Gordon Odell

Richard P N Veregin

Pinyen Lin

Chieh-Min Cheng

David H Pan

Paul Farrell Smith

Bing R Hsieh

Paul Joseph Gerroir

Daniel A Foucher

Richard P Veregin

Samir Kumar

Ronald J Koch

Lewis S Smith

Pudupadi R Sundararajan

Mary L McStravick

Adam Bush

Anita C Van Laeken

Alison Way

Maria NV Mcdougall

Disclosed is a toner comprising particles of a polyester resin, an optional colorant, and polypyrrole, wherein said toner particles are prepared by an emulsion aggregation process. Another embodiment of the present invention is directed to a process which comprises (a) generating an electrostatic latent image on an imaging member, and (b) developing the latent image by contacting the imaging member with charged toner particles comprising a polyester resin, an optional colorant, and polypyrrole, wherein said toner particles are prepared by an emulsion aggregation process.

Toner compositions comprising polyester resin and polypyrrole

Disclosed is a process for depositing marking material onto a substrate which comprises (a) providing a propellant to a printhead, said printhead having defined therein at least one channel, each channel having an inner surface and an exit orifice with a width no larger than about 250 microns through which the propellant can flow, said propellant flowing through each channel, thereby forming a propellant stream having kinetic energy, each channel directing the propellant stream toward the substrate, the inner surface of each channel having thereon a conductive polymer coating; and (b) controllably introducing a particulate marking material into the propellant stream in each channel, wherein the kinetic energy of the propellant stream causes the particulate marking material to impact the substrate.

Apparatus and process for ballistic aerosol marking

A toner composition includes a binder, a colorant, and surface-treated sol-gel metal oxide particles surface-treated with a treatment agent.

Toner compositions with surface additives

Disclosed is an apparatus for depositing a particulate marking material onto a substrate, comprising (a) a printhead having defined therein at least one channel, each channel having an inner surface and an exit orifice with a width no larger than about 250 microns, the inner surface of each channel having thereon a conductive polymer coating; (b) a propellant source connected to each channel such that propellant provided by the propellant source can flow through each channel to form propellant streams therein, the propellant streams having kinetic energy, each channel directing the propellant stream through the exit orifice toward the substrate; and (c) a marking material reservoir having an inner surface, the inner surface having thereon the conductive polymer coating, the reservoir containing particles of a particulate marking material, the reservoir being communicatively connected to each channel such that the particulate marking material from the reservoir can be controllably introduced into the propellant stream in each channel so that the kinetic energy of the propellant stream can cause the particulate marking material to impact the substrate.

Apparatus and process ballistic aerosol marking

Disclosed is a toner comprising particles of a resin and an optional colorant, said toner particles having coated thereon a polypyrrole. Another embodiment of the present invention is directed to a process which comprises (a) generating an electrostatic latent image on an imaging member, and (b) developing the latent image by contacting the imaging member with charged toner particles comprising a resin and an optional colorant, said toner particles having coated thereon a polypyrrole.

Toner compositions comprising polypyrroles

An electrophoretic display liquid composition for use in an electrophoretic display device that has a multiplicity of individual reservoirs, each containing the liquid, contains one or at least two sets of particles dispersed in a transparent and/or colored liquid system. The at least two sets of particles exhibit different, contrasting color and different charging properties from each other, while in the one particle system, the particles exhibit a different, contrasting color from the colored liquid. In all embodiments, at least one of the sets of particles are particles with adjustable morphology made from emulsion/aggregation process. The morphology of the particles is controlled to be from grape, cauliflower, raspberry, or potato up to substantially perfect spheres. The transparent liquid system may include two immiscible liquids having different densities with the sets of particles having densities in between the densities of the two immiscible liquids such that the particles rest at an interface between the two immiscible liquids.

Electrophoretic displays, display fluids for use therein, and methods of displaying images

Disclosed is a toner comprising particles of a resin and an optional colorant, said toner particles having coated thereon a polypyrrole. Another embodiment of the present invention is directed to a process which comprises (a) generating an electrostatic latent image on an imaging member, and (b) developing the latent, image by contacting the imaging member with charged toner particles comprising a resin and an optional colorant, said toner particles having coated thereon a polypyrrole.

Disclosed is a process which comprises (a) dispersing into a solvent (i) toner particles comprising a resin and an optional colorant, and (ii) monomers selected from pyrroles, thiophenes, or mixtures thereof; and (b) causing, by exposure of the monomers to an oxidant, oxidative polymerization of the monomers onto the toner particles, wherein subsequent to polymerization, the toner particles are capable of being charged to a negative or positive polarity, and wherein the polarity is determined by the oxidant selected.

Process for controlling triboelectric charging

A toner comprised of resin, colorant and a coated silica, and wherein said silica has a primary particle size of about 25 nanometers to about 55 nanometers, and an aggregate size of about 225 nanometers to about 400 nanometers, and said coating is comprised of a mixture of an alkylsilane and an aminoalkylsilane.

Toner compositions

A process which comprises maintaining a mixture of carbon dioxide, surface treating agent and colorant at a temperature of from about -10.degree. C. to about 200.degree. C., and optionally removing carbon dioxide.

Processes for the preparation of colorants

A process for the preparation of toner additive wax particles which comprises the micronization of said particles from a supercritical solution.

Supercritical fluid processes

A process which comprises heating at a temperature of from about 31.degree. C. to about 200.degree. C. a mixture of supercritical carbon dioxide, metal or metal oxide, and a surface treating component, optionally removing carbon dioxide, and optionally cooling.

Supercritical processes

A process which comprises heating at a temperature of from about -60.degree. to about 31.degree. C. a mixture of liquid carbon dioxide, metal or metal oxide, and a surface treating component, and optionally removing carbon dioxide.

Growing community of inventors

Burlington, Canada

James R Combes