Patents by Inventor Edward G. Zwartz

Edward G. Zwartz 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: 10950871
    Abstract: A method for printing a flexible printed battery is disclosed. For example, the method includes printing, via a three-dimensional (3D) printer, a first substrate of the flexible thin-film printed battery, printing a first current collector on the first substrate, printing a first layer on the first current collector, printing, via the 3D printer, a second substrate, printing a second current collector on the second substrate, printing a second layer on the second current collector, and coupling the first substrate and the second substrate around a paper separator membrane moistened with an electrolyte that is in contact with the first layer and the second layer.
    Type: Grant
    Filed: May 10, 2019
    Date of Patent: March 16, 2021
    Assignee: Xerox Corporation
    Inventors: Naveen Chopra, Gregory McGuire, Edward G. Zwartz
  • Publication number: 20210070988
    Abstract: Melt emulsification may be employed to form elastomeric particulates in a narrow size range when nanoparticles and a sulfonate surfactant are included as emulsion stabilizers. Such processes may comprise combining a polyurethane polymer, a sulfonate surfactant, and nanoparticles with a carrier fluid at a heating temperature at or above a melting point or softening temperature of the polyurethane polymer, applying sufficient shear to disperse the polyurethane polymer as liquefied droplets in the presence of the nanoparticles in the carrier fluid at the heating temperature, cooling the carrier fluid at least until elastomeric particulates in a solidified state form, and separating the elastomeric particulates from the carrier fluid. The polyurethane polymer defines a core and an outer surface of the elastomeric particulates, and the nanoparticles are associated with the outer surface. The elastomeric particulates may have a span of about 0.9 or less.
    Type: Application
    Filed: June 30, 2020
    Publication date: March 11, 2021
    Applicant: Xerox Corporation
    Inventors: Robert Claridge, Cristina Resetco, Shivanthi Easwari Sriskandha, Valerie M. Farrugia, Edward G. Zwartz
  • Publication number: 20210070953
    Abstract: Melt emulsification may be employed to form elastomeric particulates in a narrow size range when nanoparticles are included as an emulsion stabilizer. Such processes may comprise combining a polyurethane polymer and nanoparticles with a carrier fluid at a heating temperature at or above a melting point or a softening temperature of the polyurethane polymer, applying sufficient shear to disperse the polyurethane polymer as liquefied droplets in the presence of the nanoparticles in the carrier fluid at the heating temperature, cooling the carrier fluid at least until elastomeric particulates in a solidified state form, and separating the elastomeric particulates from the carrier fluid. In the elastomeric particulates, the polyurethane polymer defines a core and an outer surface of the elastomeric particulates and the nanoparticles are associated with the outer surface. The elastomeric particulates may have a D50 of about 1 ?m to about 1,000 ?m.
    Type: Application
    Filed: June 30, 2020
    Publication date: March 11, 2021
    Applicant: Xerox Corporation
    Inventors: Cristina Resetco, Shivanthi Easwari Sriskandha, Edward G. Zwartz, Michael S. Hawkins, Valerie M. Farrugia
  • Publication number: 20200358109
    Abstract: A method for printing a flexible printed battery is disclosed. For example, the method includes printing, via a three-dimensional (3D) printer, a first substrate of the flexible thin-film printed battery, printing a first current collector on the first substrate, printing a first layer on the first current collector, printing, via the 3D printer, a second substrate, printing a second current collector on the second substrate, printing a second layer on the second current collector, and coupling the first substrate and the second substrate around a paper separator membrane moistened with an electrolyte that is in contact with the first layer and the second layer.
    Type: Application
    Filed: May 10, 2019
    Publication date: November 12, 2020
    Inventors: Naveen Chopra, Gregory McGuire, Edward G. Zwartz
  • Publication number: 20200325284
    Abstract: A method for producing polysulfone micro-particles for 3D printing disclosed. For example, the method includes creating a mixture of polysulfone by dissolving polysulfone in an organic solvent, creating an aqueous solution of a polymeric stabilizer or a surfactant, adding the mixture of polysulfone to the aqueous solution to create a polysulfone solution, and processing the polysulfone solution to obtain polysulfone micro-particles having a desired particle size, a desired particle size distribution, and a desired shape.
    Type: Application
    Filed: April 10, 2019
    Publication date: October 15, 2020
    Inventors: Valerie M. Farrugia, Edward G. Zwartz, Sandra J. Gardner
  • Publication number: 20200301296
    Abstract: Described herein is a method for manufacturing a low gloss toner. The method includes mixing a resin, a colorant and an optional wax in water to form an emulsion. The emulsion is heated in the presence of a polyion coagulant to form a plurality of aggregated particles, wherein the heating is to a temperature of below the glass transition temperature of the resin. Trisodium citrate dihydrate is added to the heated emulsion in amount of from 0.4 weight percent to about 1.0 percent by weight based on of a total weight of reagents while stirring, wherein the trisodium citrate dihydrate. The aggregated particles are heated to a temperature above the glass transition temperature of the resin to form toner particles have a volume average particle diameter of from 4.3 microns to 4.9 microns.
    Type: Application
    Filed: March 18, 2019
    Publication date: September 24, 2020
    Inventors: Shivanthi Easwari Sriskandha, Richard P N Veregin, Edward G. Zwartz, Michael S. Hawkins
  • Publication number: 20200225598
    Abstract: A toner process including a) mixing reagents comprising at least one amorphous resin, an optional crystalline resin, an optional styrene, acrylate or styrene/acrylate, an optional wax, and an optional colorant to form an emulsion comprising a resin particle; b) adding at least one aggregating agent and aggregating said resin particle to form a nascent toner particle; c) optionally, adding one or more resins to form a shell on said nascent toner particle to yield a core-shell particle; d) adding a first chelating agent and a second chelating agent; wherein said first chelating agent and said second chelating agent are different; e) freezing particle growth to form an aggregated toner particle; f) coalescing said aggregated toner particle to form a toner particle; and g) optionally, collecting said toner particle.
    Type: Application
    Filed: January 14, 2019
    Publication date: July 16, 2020
    Inventors: Shivanthi Easwari Sriskandha, Richard P. N. Veregin, Guerino G. Sacripante, Edward G. Zwartz, Michael Steven Hawkins
  • Publication number: 20200225596
    Abstract: A toner composition includes toner particles made from a resin and gadolinium oxysulfide (GOS) particles. A method of making a toner composition including toner particles made from a resin and gadolinium oxysulfide (GOS) particles disposed on the surface of the toner particles, the method including blending toner particles with a surface additive package comprising the GOS particles. A method of making a toner composition including toner particles made from a resin and gadolinium oxysulfide (GOS) particles disposed throughout the toner particles, the method including adding GOS particles during toner particle manufacture.
    Type: Application
    Filed: January 15, 2019
    Publication date: July 16, 2020
    Inventors: Nan-Xing Hu, Edward G. Zwartz
  • Patent number: 10703859
    Abstract: A composition for use in 3D printing includes an unsaturated polyester resin including an ethylenically unsaturated monomer, a first diol monomer and a second diol monomer.
    Type: Grant
    Filed: May 17, 2018
    Date of Patent: July 7, 2020
    Assignee: XEROX CORPORATION
    Inventors: Shivanthi E. Sriskandha, Valerie M. Farrugia, Guerino G. Sacripante, Edward G. Zwartz
  • Patent number: 10662356
    Abstract: Methods of using a toner as a printable adhesive are provided. In embodiments, a method of adhering substrates is provided which comprises disposing a cold pressure fix toner comprising a phase change material on a first substrate via xerography to form an unfused layer of the cold pressure fix toner on the first substrate; placing a second substrate on the unfused layer of the cold pressure fix toner; and subjecting the cold pressure fix toner to a pressure to form a bonded article comprising the first substrate, an adhesive layer formed from the cold pressure fix toner, and the second substrate. Methods of applying an adhesive to a substrate and bonded articles are also provided.
    Type: Grant
    Filed: January 18, 2018
    Date of Patent: May 26, 2020
    Assignee: Xerox Corporation
    Inventors: Nan-Xing Hu, Yulin Wang, Guerino Sacripante, Edward G. Zwartz, Richard P. N. Veregin
  • Patent number: 10655025
    Abstract: A process for producing unsaturated polyester microparticles comprising: melt-mixing an unsaturated polyester and an oil in an extruder; washing the microparticles with an organic solvent to reduce the amount of oil; and removing the organic solvent to form the microparticles.
    Type: Grant
    Filed: May 17, 2018
    Date of Patent: May 19, 2020
    Assignee: XEROX CORPORATION
    Inventors: Valerie M. Farrugia, Michael S. Hawkins, Guerino G. Sacripante, Edward G. Zwartz
  • Publication number: 20200102427
    Abstract: A process including combining polystyrene and a first solvent to form a polystyrene solution; heating the polystyrene solution; adding a second solvent to the polystyrene solution with optional stirring whereby polystyrene microparticles are formed via microprecipitation; optionally, cooling the formed polystyrene microparticles in solution; and optionally, removing the first solvent and second solvent. A polystyrene microparticle formed by a microprecipitation process, wherein the polystyrene particle has a spherical morphology, a particle diameter of greater than about 10 micrometers, and a weight average molecular weight of from about 38,000 to about 200,000 Daltons. A method of selective laser sintering including providing polystyrene microparticles formed by a microprecipitation process; and exposing the microparticles to a laser to fuse the microparticles.
    Type: Application
    Filed: October 2, 2018
    Publication date: April 2, 2020
    Inventors: Valerie M. Farrugia, Edward G. Zwartz, Sandra J. Gardner
  • Patent number: 10577458
    Abstract: Provided herein is a powder composition comprising a silica-infused crystalline polyester particle for laser sintering comprising at least one crystalline polyester resin and silica nanoparticles present in the particle an amount ranging from about 10 wt % to about 60 wt % relative to the total weight of the particle. Further provided herein are methods of preparing silica-infused crystalline polyester particles.
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: March 3, 2020
    Assignee: XEROX CORPORATION
    Inventors: Valerie Farrugia, Edward G. Zwartz, Sandra J. Gardner
  • Publication number: 20200050121
    Abstract: The present disclosure provides toners and toner processes. In embodiments, a toner is provided which comprises a first resin having a weight average molecular weight of no more than about 28,000 and an onset second heat Tg of no more than about 50° C.; a second resin having a weight average molecular weight greater than that of the first resin; and a paraffin wax having a melting point in the range of from about 65° C. to about 95° C.
    Type: Application
    Filed: August 13, 2018
    Publication date: February 13, 2020
    Inventors: Robert D. Bayley, Grazyna E. Kmiecik-Lawrynowicz, Maura A. Sweeney, Edward G. Zwartz
  • Patent number: 10539896
    Abstract: A toner composition including an amorphous polyester resin; a crystalline polyester resin; a styrene acrylate copolymer; an optional wax; and an optional colorant; wherein the amorphous polyester resin comprises a rosin monomer content of from about 10 to about 25 percent rosin monomer based upon the total amount of monomer comprising the amorphous polyester resin. A toner composition including a core and at least one shell disposed thereover. A toner process including contacting an amorphous polyester resin; a crystalline polyester resin; a styrene acrylate copolymer; an optional wax; an optional colorant; and an optional aggregating agent; wherein the amorphous polyester resin comprises a rosin monomer content of from about 10 to about 25 percent rosin monomer heating to form aggregated toner particles; optionally, adding a shell resin to the aggregated toner particles, heating to coalesce the particles; and recovering the toner particles.
    Type: Grant
    Filed: January 14, 2019
    Date of Patent: January 21, 2020
    Assignee: Xerox Corporation
    Inventors: Kimberly D. Nosella, Guerino G. Sacripante, Edward G. Zwartz, Michael Steven Hawkins
  • Publication number: 20190358981
    Abstract: The present disclosure relates to a print process in which ink is transferred as a thin layer to a thin polymeric substrate and then the non-image areas of the polymeric substrate are laser-cured. After the curing of the non-imaged area the remaining ink (non-cured ink) undergoes complete transfer to a print-media-of-interest forming the digital print.
    Type: Application
    Filed: May 24, 2018
    Publication date: November 28, 2019
    Inventors: Carolyn MOORLAG, Marcel P. BRETON, Edward G. ZWARTZ, Biby Esther ABRAHAM
  • Publication number: 20190352521
    Abstract: A process for producing unsaturated polyester microparticles comprising: melt-mixing an unsaturated polyester and an oil in an extruder; washing the microparticles with an organic solvent to reduce the amount of oil; and removing the organic solvent to form the microparticles.
    Type: Application
    Filed: May 17, 2018
    Publication date: November 21, 2019
    Inventors: Valerie M. Farrugia, Michael S. Hawkins, Guerino G. Sacripante, Edward G. Zwartz
  • Publication number: 20190352455
    Abstract: A composition for use in 3D printing includes an unsaturated polyester resin including an ethylenically unsaturated monomer, a first diol monomer and a second diol monomer.
    Type: Application
    Filed: May 17, 2018
    Publication date: November 21, 2019
    Inventors: Shivanthi E. Sriskandha, Valerie M. Farrugia, Guerino G. Sacripante, Edward G. Zwartz
  • Publication number: 20190276700
    Abstract: The present teachings include powder coating including a plurality of core/shell particles. Each particle of plurality of core/shell particles has a size of from about 3 microns to about 100 microns. Each particle of the plurality of core/shell particles has a core including a cross-linkable crystalline polyester resin having a melting temperature of less than about 150° C. Each particle of the plurality of core/shell particles has a shell including a cross-linkable amorphous polyester resin having a glass transition temperature greater than 40° C. Each particle of the plurality of core/shell particles includes a thermal initiator.
    Type: Application
    Filed: March 7, 2018
    Publication date: September 12, 2019
    Inventors: Nan-Xing Hu, Guerino G. Sacripante, Edward G. Zwartz, Shivanthi E. Sriskandha, Carolyn P. Moorlag, Valerie Farrugia
  • Publication number: 20190276593
    Abstract: Provided herein is a powder composition comprising a silica-infused crystalline polyester particle for laser sintering comprising at least one crystalline polyester resin and silica nanoparticles present in the particle an amount ranging from about 10 wt % to about 60 wt % relative to the total weight of the particle. Further provided herein are methods of preparing silica-infused crystalline polyester particles.
    Type: Application
    Filed: March 7, 2018
    Publication date: September 12, 2019
    Applicant: XEROX CORPORATION
    Inventors: Valerie Farrugia, Edward G. Zwartz, Sandra J. Gardner