Patents by Inventor Santiago Faucher

Santiago Faucher has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7943687
    Abstract: A process and system for continuously making a resin emulsion suitable for use in forming toner particles includes at least one micromixer for micromixing a resin mixture and aqueous phase to continuously produce an emulsion of a high solids content. The process comprises contacting a polyester resin possessing acid groups with a component selected from the group consisting of an organic solvent and a solvent inversion agent to form a resin mixture; neutralizing the resin mixture with a neutralizing agent; and subjecting the resin mixture to micromixing.
    Type: Grant
    Filed: July 14, 2009
    Date of Patent: May 17, 2011
    Assignee: Xerox Corporation
    Inventors: Santiago Faucher, Mikhail Hanewich-Hollatz, Shigang Qiu, David Borbely
  • Publication number: 20110104609
    Abstract: The present disclosure provides processes for producing resins suitable for use in forming toner compositions. In embodiments, the processes described herein comprise formation of latexes, including latexes for use in toners, produced without use of solvents.
    Type: Application
    Filed: November 2, 2009
    Publication date: May 5, 2011
    Applicant: XEROX CORPORATION
    Inventors: Shigang QIU, Santiago FAUCHER, John ABATE, Allan CHEN, Ke ZHOU
  • Publication number: 20110070372
    Abstract: An ink set comprising at least two inks. A first ink includes an optional colorant, a first multi-functional monomer, a second multi-functional monomer that is different from the first multi-functional monomer, and a peroxide initiator comprising a thermal free radical initiator. A second ink includes an optional colorant, a first multi-functional monomer, a second multi-functional monomer that is different from the first multi-functional monomer, and an amine activator comprising a catalyst which catalyzes the homolytic cleavage of the thermal free-radical initiator at low temperatures into radicals. The first ink is free of the amine activator and the second ink is free of the peroxide initiator. The first multi-functional monomer and the second multi-functional monomer accelerate reaction kinetics through a Trommsdorff effect.
    Type: Application
    Filed: September 18, 2009
    Publication date: March 24, 2011
    Applicant: XEROX CORPORATION
    Inventors: Santiago Faucher, Cheryl Lynn Pearce, Peter G. Odell, David Allen Mantell, Emily L. Moore
  • Publication number: 20110027710
    Abstract: A process for making a self-emulsifying granule suitable for use in forming latex emulsions includes contacting a resin with a solid or highly concentrated surfactant, a solid neutralization agent and water in the absence of an organic solvent to form a mixture, melt mixing the mixture, and forming self-emulsifying granules of the melt mixed mixture. Self-emulsifying granules are also provided and configured to form a latex emulsion when added to water, which may then be utilized to form a toner.
    Type: Application
    Filed: July 30, 2009
    Publication date: February 3, 2011
    Applicant: XEROX CORPORATION
    Inventors: Santiago Faucher, Joo T. Chung, Shigang Qiu, Fumii Higuchi
  • Publication number: 20110028570
    Abstract: A process for making a self-emulsifying granule suitable for use in forming latex emulsions includes contacting a resin with a solid or highly concentrated surfactant, a solid neutralization agent and water in the absence of an organic solvent to form a mixture, melt mixing the mixture, and forming self-emulsifying granules of the melt mixed mixture. Self-emulsifying granules are also provided and configured to form a latex emulsion when added to water.
    Type: Application
    Filed: July 30, 2009
    Publication date: February 3, 2011
    Applicant: XEROX CORPORATION
    Inventors: Santiago Faucher, Joo T. Chung, Shigang Qiu, Fumii Higuchi
  • Publication number: 20110028620
    Abstract: A process for making a latex emulsion suitable for use in a toner composition includes contacting a resin with a solid neutralizing agent in the absence of an organic solvent to form a mixture either via a co-feeding process or a pre-blend mixture, and adding a solid or aqueous surfactant to the pre-blend mixture or prior to melt mixing the mixture.
    Type: Application
    Filed: July 30, 2009
    Publication date: February 3, 2011
    Applicant: XEROX CORPORATION
    Inventors: Santiago Faucher, Joo T. Chung, Fumii Higuchi, Shigang Qiu, Joseph L. Leonardo, Brian J. Andaya
  • Publication number: 20110015320
    Abstract: A process and system for continuously making a resin emulsion suitable for use in forming toner particles includes at least one micromixer for micromixing a resin mixture and aqueous phase to continuously produce an emulsion of a high solids content.
    Type: Application
    Filed: July 14, 2009
    Publication date: January 20, 2011
    Applicant: XEROX CORPORATION
    Inventors: Santiago Faucher, Mikhail Hanewich-Hollatz, Shigang Qiu, David Borbely
  • Publication number: 20100316946
    Abstract: A process for making a self-emulsifying composite suitable for use in forming latex emulsions includes contacting a resin with a solid or highly concentrated surfactant, a solid neutralizing agent in the absence of water and an organic solvent to form a mixture, melt mixing the mixture, and forming a self-emulsifying composite of the melt mixed mixture such as a granule. Self-emulsifying granules are also provided and configured to form a latex emulsion when added to water, which may then be utilized to form a toner.
    Type: Application
    Filed: June 16, 2009
    Publication date: December 16, 2010
    Applicant: XEROX CORPORATION
    Inventors: Santiago Faucher, Rina Carlini, Joo T. Chung, Fumii Higuchi, Shigang Qiu, Allan K. Chen, Edward Graham Zwartz, Michael Steven Hawkins, Brian J. Andaya, Joseph L. Leonardo
  • Publication number: 20100081076
    Abstract: In accordance with various embodiments, there is a method of making a polyester. The method can include providing a monomer solution, the monomer solution including one or more cyclic esters in a concentration ranging from about 1 to about 100% and one or more solvents in a concentration ranging from about 99% to about 0%. The method of making a polyester can also include providing a packed-bed reactor including one or more immobilized enzymes, wherein the packed-bed reactor has an inlet and an outlet. The method can further include circulating the monomer solution through the packed-bed reactor to generate a solution enriched with polyester, such that the one or more immobilized enzymes convert the one or more cyclic esters to polyester in the packed-bed reactor during circulation and collecting the solution enriched with polyester exiting through the outlet.
    Type: Application
    Filed: September 29, 2008
    Publication date: April 1, 2010
    Applicant: XEROX CORPORATION
    Inventors: Jordan H. Wosnick, Santiago Faucher
  • Patent number: 7563318
    Abstract: A process for preparing nanoscale azo pigment particles includes providing an organic pigment precursor that contains at least one functional moiety, providing a sterically bulky stabilizer compound that contains at least one functional group, and carrying out a chemical reaction to form a pigment composition in a microreactor or micromixer, whereby the functional moiety found on the pigment precursor is incorporated within the pigment and non-covalently associated with the functional group of the stabilizer, so as to allow the formation of nanoscale-sized pigment particles and the production of such in a microreactor under laminar or turbulent flow conditions without clogging.
    Type: Grant
    Filed: July 2, 2008
    Date of Patent: July 21, 2009
    Assignee: Xerox Corporation
    Inventors: Santiago Faucher, Rina Carlini, Emily L. Moore, Christine M. Thompson, Sandra J. Gardner, Paul J. Gerroir, C. Geoffrey Allen