Xerox Corporation

Other

Palo Alto Research Center Inc.

Sandia Corporation

University of Montreal

Marcel Philippe Breton

Raymond W Wong

Peter Gordon Odell

Shadi L Malhotra

James Daniel Mayo

Naveen Chopra

Barkev Keoshkerian

Guerino G Sacripante

Adela Goredema

Gabriel Iftime

Jennifer Lynne Belelie

C Geoffrey Allen

Carolyn Patricia Moorlag

Christine E Bedford

Guiqin Song

Aurelian Valeriu Magdalinis

Jeffrey H Banning

Michelle Chretien

H Bruce Goodbrand

Frank Ping-Hay Lee

Stephan V Drappel

Jenny Eliyahu

Gordon Sisler

Christopher A Wagner

Danielle C Boils-Boissier

Donald R Titterington

Jule W Thomas, Jr

Caroline Melanie Turek

Rina Carlini

Patricia Ann Burns

Biby Esther Abraham

Suxia Yang

Melvin D Croucher

Francoise M Winnik

Nan-Xing Hu

Valerie M Farrugia

Richard P N Veregin

Daryl Walter Vanbesien

Daniel A Foucher

Danielle C Boils

Yvan Gagnon

John F Oliver

Fatima M Pontes

Karen Ann Moffat

Paul Farrell Smith

Brynn Mary Dooley

Mihaela Maria Birau

Trevor I Martin

Carol A Jennings

Raj D Patel

Susanne Birkel

David J Sanders

Michelle N Chrétien

Gregory Joseph Kovacs

Carl P Tripp

Michael J D'Amato

Chu-Heng Liu

Yiliang Wu

Beng S Ong

Peter Michael Kazmaier

Edward Graham Zwartz

Ke Zhou

Grazyna E Kmiecik-Lawrynowicz

Sandra J Gardner

Michael A Hopper

Jaan Noolandi

Gordon K Hamer

William M Schwarz

Eniko Toma

Sepehr M Tehrani

Santokh Singh Badesha

Paul J McConville

David Joseph Gervasi

Hadi K Mahabadi

James McConnell Duff

Mandakini Kanungo

James R Larson

Bing R Hsieh

Kimberly D Nosella

Timothy D Stowe

Timothy P Bender

Kentaro Morimitsu

Sarah Jane Vella

Paul Joseph Gerroir

Qi Zhang

Walter Mychajlowskij

Gregory J Kovacs

Vladislav Skorokhod

Paul Charles Galambos

Toshitake Yui

Kurt B Gundlach

George J Roller

Richard L Colt

Arthur M Gooray

Joseph Michael Crowley

Terry L Bluhm

San-Ming Yang

Maria Birau

Kirit N Naik

Fatima M Mayer

Methods for forming a latex are provided. In an embodiment, such a method comprises adding a monomer emulsion comprising water, a monomer, an acidic monomer, a multifunctional monomer, a first reactive surfactant, and a chain transfer agent, to a reactive surfactant solution comprising water, a second reactive surfactant, and an initiator, at a feed rate over a period of time so that monomers of the monomer emulsion undergo polymerization reactions to form resin particles in a latex, wherein the reactive surfactant solution does not comprise monomers other than the second reactive surfactant, the reactive surfactant solution does not comprise a resin seed, and the monomer emulsion does not comprise the resin seed. The latexes are also provided.

Monodisperse latexes

Aqueous inkjet ink compositions are provided. In an embodiment, such a composition comprises water; resin particles; and a colorant; wherein the resin particles comprise a polymerization product of reactants comprising a monomer, an acidic monomer, a multifunctional monomer, and a reactive surfactant, the resin particles having a Dof no greater than about 150 nm, a Dof less than about 200 nm, and a polydispersity index (PDI) of no greater than about 0.050. Methods of forming and using the aqueous inkjet ink compositions are also provided.

Aqueous inkjet ink compositions made from monodisperse latexes

UV-curable interlayer compositions are provided. In embodiments, the interlayer composition comprises at least one aliphatic di(meth)acrylate monomer diluent having a dynamic viscosity at 25&#xb0; C. of less than about 100 cps; at least one (meth)acrylate oligomer selected from epoxy (meth)acrylates, polyester (meth)acrylates, polyether (meth)acrylates, urethane (meth)acrylates and combinations thereof, the at least one (meth) acrylate oligomer having a glass transition temperature in the range of from about minus 10&#xb0; C. to about 100&#xb0; C. and a dynamic viscosity at 25&#xb0; C. of less than about 3000 cps; and at least two photoinitiators. Multilayer structures formed using the compositions and related methods are also provided.

UV curable interplayer for electronic printing

An aqueous sacrificial coating composition for an image transfer member in an aqueous ink imaging system is provided. The sacrificial coating composition may include at least one polymer, at least one selected from (i) at least one chain extender, or (ii) a reactive elastomeric latex, wherein the at least one chain extender comprises a species capable of linking linear chains or chain segments of the reactive elastomeric latex, at least one hygroscopic plasticizer, and at least one surfactant.

Compositions and use of compositions in printing processes

An embodiment of the present disclosure is directed to a sacrificial coating composition for an image transfer member in an aqueous ink imaging system. The coating composition is made from ingredients including: a latex having polymer particles dispersed in a continuous liquid phase; at least one hygroscopic material; at least one oil-in-water emulsion; and at least one surfactant.

Sacrificial coating for intermediate transfer member of an indirect printing apparatus

A curable ink including at least one monomer, oligomer, or prepolymer; an optional photoinitiator; an optional colorant; and amide gellant having a molecular weight of from about 800 to about 2,500 g/mole; wherein the ink has an onset of gelation defined by the glass transition of the low molecular weight amide gellant according to the relationship Onset of Gelation (K)=(Constant) Tg of gellant (K); wherein the Constant is less than 1.5. A process for printing a three-dimensional article including providing a curable ink; depositing the curable ink in one or more layers; and curing the deposited ink to form the three-dimensional object.

Ink jet ink compositions for digital manufacturing of transparent objects

UV-curable interlayer compositions are provided. In embodiments, the interlayer composition comprises at least one aliphatic di(meth)acrylate monomer diluent having a dynamic viscosity at 25&#xb0; C. of less than about 100 cps; at least one (meth)acrylate oligomer selected from epoxy (meth)acrylates, polyester (meth)acrylates, polyether (meth)acrylates, urethane (meth)acrylates and combinations thereof, the at least one(meth) acrylate oligomer having a glass transition temperature in the range of from about minus 10&#xb0; C. to about 100&#xb0; C. and a dynamic viscosity at 25&#xb0; C. of less than about 3000 cps; and at least two photoinitiators. Multilayer structures formed using the compositions and related methods are also provided.

UV curable interlayer for electronic printing

A process including providing a curable gellant ink composition having a phase transition temperature; heating the ink composition to a temperature above the phase transition temperature; depositing the ink composition onto a substrate; wherein upon contact with the substrate the ink composition freezes to provide a gel ink layer; treating at least a portion of the gel ink layer whereby treated gellant ink reacts to form a three-dimensional object and wherein untreated gellant ink does not react and remains in gellant form; optionally, wherein the unreacted gellant ink provides a support structure for overhang portions of the three-dimensional object.

Printing process

The disclosed embodiments are directed to a composition of an inverse emulsion acrylate ink for use in variable data digital lithographic image forming devices and methods for preparing and using the ink. The disclosed inverse emulsion acrylate ink includes an acrylate monomer, oligomer, polymer, or mixtures thereof that is a continuous phase, and water dispersed as an emulsion in the continuous acrylate phase. The disclosed inverse emulsion acrylate ink includes one or more of a color pigment component, a rheology modifying agent, a stabilizing agent, and a photoinitiator component. The water may be supplemented with a surfactant to lower a surface tension of the water.

Inverse emulsion acrylate ink compositions for ink-based digital lithographic printing

A system and method are provided for producing variable pearlescent image elements or portions on image receiving media substrates using a variable digital data offset lithographic architecture which provides for varying lithographic images between cycles of a marking device. Pearlescent inks are provided with a solid particle pearlescent pigment components in a proportion of at least 30% by weight suspended in solution in an ink composition. Pearlescent inks are provided with a solid particle pearlescent pigment components having particle sizes in excess of ten microns suspended in solution in the ink composition. The disclosed systems and methods provide for variable pearlescent image elements or portions to be formed on an image receiving medium substrate separate from, or in combination with, other ink image elements or portions applied using other inks in a single device, and/or in a single pass of the image receiving media substrates through an image forming system.

Systems and methods for delivering aqueous pearlescent digital printing ink compositions using digital offset lithographic printing techniques

A method of making a sacrificial coating composition is disclosed. The method comprises emulsifying an oil with surfactant and water to form an oil-in-water emulsion; and combining ingredients comprising (i) at least one polymer, (ii) at least one hygroscopic material, (iii) the oil-in water emulsion and (iv) water to produce the sacrificial coating composition. The at least one polymer is selected from the group consisting of a hydrophilic polymer, a latex comprising polymer particles dispersed in a continuous liquid phase, or mixtures thereof.

Method of making sacrificial coating for an intermediate transfer member of indirect printing apparatus

An ink composition useful for digital offset printing applications comprises a photochromic material and a plurality of curable compounds. The compounds have Hansen solubility parameters as described herein, and the resulting ink composition is both compatible with certain dampening fluids and has certain rheological properties, including a low viscosity. The photochromic ink compositions are useful for providing security information in certain printing applications.

Photochromic security enabled ink for digital offset printing applications

An ink composition useful for digital offset printing applications includes a colorant and a high viscosity thickening agent. The ink is formulated to incorporate polyester viscosity modifier to help meet the requirement of two different viscosity or temperature pairs at two different stages of the process. In digital offset printing a bulk ink is first transferred onto an anilox roll, and then from the anilox roll onto the imaging cylinder blanket. During the bulk ink to anilox roll the disclosed ink has a low viscosity while the transfer from roll to imaging blanket the ink has a higher viscosity. The addition of the polyester viscosity modifier increases the viscosity difference within the allowable temperature range, thus, increasing process latitude and robustness.

Phase-change digital advanced lithographic imaging ink with polyester transfer additive

An embodiment of the present disclosure is directed to a wet sacrificial coating composition. The coating composition is made from ingredients including: a waxy starch; at least one cross-linker; at least one hygroscopic material; at least one surfactant; and a liquid carrier.

Sacrificial coating and indirect printing apparatus employing sacrificial coating on intermediate transfer member

Growing community of inventors

Mississauga, Canada

Marcel Philippe Breton