Xerox Corporation

Carol A Jennings

C Geoffrey Allen

Marcel Philippe Breton

Peter Gordon Odell

Sandra J Gardner

Trevor I Martin

John F Oliver

Eric G Johnson

Gregory J Kovacs

Man C Tam

Maria Birau

Katsumi Nukada

Ah-Mee Hor

James Daniel Mayo

Adela Goredema

Paul Farrell Smith

Raymond W Wong

Katsumi Daimon

George Liebermann

Marko D Saban

Gordon K Hamer

Caroline Melanie Turek

Rafik O Loutfy

Richard A Burt

Nan-Xing Hu

Guerino G Sacripante

Beng S Ong

Peter Michael Kazmaier

John F Yanus

Edward Graham Zwartz

Stephan V Drappel

Daryl Walter Vanbesien

Damodar M Pai

William W Limburg

Jeffrey H Banning

Hadi K Mahabadi

James McConnell Duff

Michael Steven Hawkins

Dale S Renfer

Dasarao K Murti

Mihaela Maria Birau

Roger E Gaynor

Thomas Edward Enright

Man-Chung Tam

Michael B Meinhardt

Susanne Birkel

Aurelian Valeriu Magdalinis

San-Ming Yang

Randall Ray Bridgeman

Arthur Y Jones

Arnold L Pundsack

Ahmed Alzamly

Philip H Soden

Gwynne E McAneney

Maxine E Haberl

Enrique Levy

MaryAnna Isabella

Michael G Taylor

Harvey Bruce Goodbrand

M Maria Birau

Hany M Aboushaka

Judith P Meester

Steven Bloembergen

Maxine Haberl

A synergist for pigment in a solid ink having the following formula: 

Five member ring stabilizers for quinacridone-type pigments in solid ink

A solid ink that includes an ink carrier and a resinous compound of the formulas or a salt thereof, wherein Gis &#x2014;XC(O)OR, &#x2014;XOC(O)R, or &#x2014;XOH; Gis R, R, &#x2014;C(O)R, &#x2014;C(O)XC(O)OR, or &#x2014;C(O)XOC(O)R; Ris an alkyl having from 10 to 80 carbon atoms; Ris an alkyl having from 2 to 40 carbon atoms; each Rand Ris independently hydrogen, alkyl, arylalkyl or alkylaryl; each Rand each Ris independently hydrogen or alkyl; Xand Xare both a straight or branched alkylene group; tis 1 to 20; tand tis independently 0 to 20; uis 1 to 30; uand uis independently 0 to 30; each Rand each Ris independently hydrogen, alkyl, or alkoxyl; each Rand each Ris independently hydrogen, alkyl, or alkoxyl; Ar is a substituted or unsubstituted aromatic moiety; p is 1 to 5; q is 1 to 12; Ais selected from the group consisting of Cl, Br, I, HSO, HSO, CHSO, NO, HCOO, CHCOO, HPO, SCN, ClO, SSO, PF, and SbCl; and J is alkyl, arylalkyl, or alkylaryl.

Tri-component resins for pigmented ink

A fluorescent particle includes a fluorescent pigment, such as a trans-dicarboxylic-indenofluorenone, and at least one stabilizing wax chemically attached to the fluorescent pigment. The stabilizing wax includes an amine group at its terminal end and the fluorescent pigment includes at least one carboxylic acid group, where the amine group reacts with the carboxylic acid group to form an amide bond. A method for making fluorescent particles for use in toners by chemically attaching at least one stabilizing wax to a fluorescent pigment where the at least one stabilizing wax includes an amine group at its terminal end and the fluorescent pigment includes at least one carboxylic acid group. A toner may include a resin and the fluorescent particle.

Fluorescent toner compositions and fluorescent pigments

A fluorescent solid ink, and a method for making such ink, including an ink vehicle and a fluorescent particle. The fluorescent particle includes a fluorescent pigment, such as a trans-dicarboxylic-indenofluorenone, and at least one stabilizing wax chemically attached to the fluorescent pigment. The stabilizing wax includes an amine group at its terminal end and the fluorescent pigment includes at least one carboxylic acid group, where the amine group reacts with the carboxylic acid group to form an amide bond.

Fluorescent ink compositions and fluorescent particles

Disclosed is a compound of the formula or a mixture thereof; wherein R and R' are the same or different, and wherein R and R&#x2032; are independently selected from an alkyl group, an arylalkyl group, or an alkylaryl group, wherein the alkyl group, the arylalkyl group, or the alkylaryl group has from about 18 to about 60 carbon atoms; and wherein m is an integer of from about 1 to about 30.

Low molecular weight pigment dispersants for phase change ink

Disclosed is a technique for producing bichromal balls that are adapted for use in high temperature applications. The bichromal balls find particular application in signs and display devices that can be used in environments in which the temperature exceeds 40&#xb0; C.

Bichromal balls

Methods for preparing phthalocyanine compositions

An ink for ink jet printing includes submicron-sized particles in a liquid vehicle, with the submicron-sized particles including a colorant dispersed in an emulsifiable polymer resin. The polymer resin may contain a base chain, such as polyester, having hydrophilic groups, such as alkali sulfonated groups, for emulsifying the resin in water.

Waterfast ink jet inks containing an emulsifiable polymer resin

A photoconductive imaging member comprised of a supporting substrate, a hole blocking layer thereover, a photogenerating layer and a charge transport layer, and wherein the hole blocking layer is comprised of a metal oxide prepared by a sol-gel process.

Photoconductive imaging members

Disclosed is a toner composition for the development of electrostatic latent images which comprises particles comprising a mixture of a resin and a photochromic material. Another embodiment of the present invention is directed to a liquid developer composition for the development of electrostatic latent images which comprises a nonaqueous liquid vehicle and a photochromic material, wherein the liquid developer has a resistivity of from about 10.sup.8 to about 10.sup.11 ohm-cm and a viscosity of from about 25 to about 500 centipoise. Yet another embodiment of the present invention is directed to a liquid developer composition for the development of electrostatic latent images which comprises a nonaqueous liquid vehicle, a charge control agent, and toner particles comprising a mixture of a resin and a photochromic material.

Photochromic electrostatic toner compositions

Processes are disclosed for fabricating an ink composition which uses a high pressure shearing force to produce a desired reduction and dispersion of pigment particles in a concentrated dispersion. In one disclosed process, an aqueous ink mixture including water, a solvent and a black pigment colorant dispersion is processed by a microfluidizer and filtered to obtain a desired particle size making the ink suitable for ink jet printing applications. In another process, the pigment dispersion is first microfluidized and the water and solvent added to form a mixture which is then filtered. These processes simplify the ink fabrication by eliminating a sonification and centrifugation step required by prior art processes.

Process for preparing an ink composition

Disclosed is an ink composition which comprises an aqueous liquid vehicle, a photochromic material, and a vesicle-forming lipid, wherein vesicles of the lipid are present in the ink.

Ink compositions with liposomes containing photochromic compounds

Disclosed is a hot melt ink composition comprising (a) an ink vehicle, said ink vehicle being a solid at about 25.degree. C. and having a viscosity of from about 1 to about 20 centipoise at a temperature suitable for hot melt ink jet printing, said temperature being greater than about 45.degree. C., (b) a photochromic material, (c) an optional colorant, and (d) an optional propellant.

Photochromic hot melt ink compositions

Disclosed is a migration imaging member comprising a substrate, a first softenable layer comprising a first softenable material and a first migration marking material contained at or near the surface of the first softenable layer spaced from the substrate, and a second softenable layer comprising a second softenable material and a second migration marking material. Also disclosed is a migration imaging process employing the aforesaid imaging member.

Migration imaging members

Disclosed is an ink composition which comprises an aqueous phase, an oil phase, a photochromic material, and a surfactant, said ink exhibiting a liquid crystalline gel phase at a first temperature and a liquid microemulsion phase at a second temperature higher than the first temperature.

Photochromic microemulsion ink compositions

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Etobicoke, Canada

Carol A Jennings