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).

  • 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: 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
  • 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
  • Patent number: 10372052
    Abstract: An emulsion aggregation toner composition includes toner particles including: an unsaturated polymeric resin, such as amorphous resins, crystalline resins, and combinations thereof; an optional colorant; an optional wax; an optional coagulant; and a photoinitiator. By optimizing the particle size of the emulsion, the aggregant concentration utilized in the emulsion aggregation process, and the solids content of the emulsion, toners may be produced capable of generating images with non-contact fusing that have high gloss.
    Type: Grant
    Filed: July 26, 2016
    Date of Patent: August 6, 2019
    Assignee: Xerox Corporation
    Inventors: Edward G. Zwartz, Guerino G. Sacripante
  • Publication number: 20190218437
    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: Application
    Filed: January 18, 2018
    Publication date: July 18, 2019
    Inventors: Nan-Xing Hu, Yulin Wang, Guerino Sacripante, Edward G. Zwartz, Richard P. N. Veregin
  • Patent number: 10315409
    Abstract: A method of selective laser sintering is disclosed. The method comprises providing composite particles made by emulsion aggregation, the composite particles comprising at least one thermoplastic polymer and at least one carbon particle material. The composite particles are exposed to a laser to fuse the composite particles.
    Type: Grant
    Filed: July 20, 2016
    Date of Patent: June 11, 2019
    Assignee: XEROX CORPORATION
    Inventors: Barkev Keoshkerian, Jordan H. Wosnick, Rachel Prestayko, Kimberly D. Nosella, Valerie M. Farrugia, Edward G. Zwartz
  • Patent number: 10248038
    Abstract: Graphene-containing toners are provided. In an embodiment, a graphene-containing toner comprises a core comprising graphene, a crystalline polyester resin, and an amorphous polyester resin, the toner further comprising a shell over the core. Methods of making and using the toners are also provided.
    Type: Grant
    Filed: January 23, 2018
    Date of Patent: April 2, 2019
    Assignee: XEROX CORPORATION
    Inventors: Yu Qi, Shigeng Li, Chieh-Min Cheng, Richard P. N. Veregin, Edward G. Zwartz
  • Patent number: 10216124
    Abstract: A fuser comprises a substrate and a composite layer formed on the substrate. The composite layer comprises a fluoropolymer and at least one of (a) per-fluorosulfonated polymer-treated, carbon nanotube-comprising particles, and (b) perfluorosulfonated polymer-treated, graphene-comprising particles. Methods of making a fuser and methods of fusing toner particles are also disclosed.
    Type: Grant
    Filed: October 7, 2016
    Date of Patent: February 26, 2019
    Assignee: XEROX CORPORATION
    Inventors: Qi Zhang, Nan-Xing Hu, Suxia Yang, Sandra J. Gardner, Edward G. Zwartz, Yu Qi
  • Patent number: 10174205
    Abstract: 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.
    Type: Grant
    Filed: October 19, 2015
    Date of Patent: January 8, 2019
    Assignee: Xerox Corporation
    Inventors: Barkev Keoshkerian, Carolyn Moorlag, Edward G. Zwartz, Naveen Chopra, Marcel P. Breton, Sarah J. Vella
  • Patent number: 10095143
    Abstract: A hybrid toner composition including a first wax; a second wax that is different from the first wax; wherein the first wax comprises a paraffin wax having a peak melting point of from about 60 to about 80° C.; wherein the second wax comprises an ester wax having a peak melting point of from about 60 to about 80° C.; a first resin comprising an amorphous polyester resin and at second resin comprising at least one of a styrene, an acrylate, or a combination thereof; and an optional colorant.
    Type: Grant
    Filed: June 5, 2017
    Date of Patent: October 9, 2018
    Assignee: Xerox Corporation
    Inventors: Richard P. N. Veregin, Valerie M. Farrugia, Edward G. Zwartz
  • Patent number: 10078282
    Abstract: Disclosed are toner compositions that include an amorphous polyester resin, a crystalline polyester resin, a colorant and a wax, and where the amorphous polyester resin contains in excess of zero weight percent of dodecylsuccinic anhydride to less than 16 weight percent of dodecylsuccinic anhydride, or where the amorphous polyester resin contains in excess of zero weight percent of dodecylsuccinic acid to less than 16 weight percent of dodecylsuccinic acid.
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: September 18, 2018
    Assignee: Xerox Corporation
    Inventors: Guerino G. Sacripante, Ke Zhou, Michael S. Hawkins, Edward G. Zwartz
  • Patent number: 9999902
    Abstract: Exemplary embodiments provide an erasable medium having an overcoat layer on a photochromic layer to provide a non-adhesive surface for the erasable medium when exposed to high temperatures, wherein the overcoat layer can include a latex or a mixture of a latex and a wax.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: June 19, 2018
    Assignee: XEROX CORPORATION
    Inventors: Gabriel Iftime, Jason Leong, Edward G. Zwartz, Gordon Sisler, Kentaro Morimitsu, Adela Goredema, Peter M. Kazmaier
  • Patent number: 9996019
    Abstract: Disclosed are cold pressure fix toner compositions that include a core of a colorant, and a mixture of a co-polyester-co-polydimethylsiloxane and an amorphous resin, and a polymer shell thereover.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: June 12, 2018
    Assignee: Xerox Corporation
    Inventors: Yulin Wang, Guerino G. Sacripante, Richard P. N. Veregin, Edward G. Zwartz, Kathryne S. Brockman
  • Patent number: 9902867
    Abstract: Disclosed herein are sacrificial coating compositions comprising at least one hydrophilic polymer; at least one hygroscopic agent; at least one surfactant; at least one non-reactive silicone release agent; and water. In certain embodiments, the at least one non-reactive silicone release agent is chosen from polyether modified polysiloxane and nonreactive silicone glycol copolymers. In certain embodiments, the at least one non-reactive silicone release agent may be present in an amount ranging from about 0.001% to about 2%, based on the total weight of the composition, such as from about 0.03% to about 0.06%. Also disclosed herein is a blanket material suitable for transfix printing comprising a sacrificial coating composition, as well as an indirect printing process comprising a step of applying a sacrificial coating composition to a blanket material.
    Type: Grant
    Filed: June 13, 2016
    Date of Patent: February 27, 2018
    Assignee: XEROX CORPORATION
    Inventors: Guiqin Song, Suxia Yang, Gordon Sisler, Edward G. Zwartz
  • Publication number: 20180022043
    Abstract: A method of selective laser sintering is disclosed. The method comprises providing composite particles made by emulsion aggregation, the composite particles comprising at least one thermoplastic polymer and at least one carbon particle material. The composite particles are exposed to a laser to fuse the composite particles.
    Type: Application
    Filed: July 20, 2016
    Publication date: January 25, 2018
    Inventors: Barkev Keoshkerian, Jordan H. Wosnick, Rachel Prestayko, Kimberly D. Nosella, Valerie M. Farrugia, Edward G. Zwartz
  • Patent number: 9864291
    Abstract: A hybrid toner includes a core having at least one amorphous polyester resin and at least one crystalline polyester resin, and at least one styrene/acrylate resin, a shell comprising at least one styrene/acrylate resin, at least one wax, and optionally a pigment dispersion, the first modulated differential calorimetry scan of the hybrid toner shows at least two melting point peaks below about 80° C., and the difference between the two melting point peaks is less than or equal to about 15° C.
    Type: Grant
    Filed: June 20, 2016
    Date of Patent: January 9, 2018
    Assignee: XEROX CORPORATION
    Inventors: Richard P. N. Veregin, Valerie M. Farrugia, Frank Ping-Hay Lee, Michael J. D'Amato, Michael S. Hawkins, Edward G. Zwartz, Yulin Wang, Abdisamed Sheik-Qasim, Sandra J. Gardner
  • Publication number: 20170363984
    Abstract: A hybrid toner includes a core having at least one amorphous polyester resin and at least one crystalline polyester resin, and at least one styrene/acrylate resin, a shell comprising at least one styrene/acrylate resin, at least one wax, and optionally a pigment dispersion, the first modulated differential calorimetry scan of the hybrid toner shows at least two melting point peaks below about 80° C., and the difference between the two melting point peaks is less than or equal to about 15° C.
    Type: Application
    Filed: June 20, 2016
    Publication date: December 21, 2017
    Inventors: Richard P. N. Veregin, Valerie M. Farrugia, Frank Ping-Hay Lee, Michael J. D'Amato, Michael S. Hawkins, Edward G. Zwartz, Yulin Wang, Abdisamed Sheik-Qasim, Sandra J. Gardner
  • Patent number: 9760048
    Abstract: Described is a fuser member having a substrate and a surface layer disposed on the substrate. The surface layer includes a non-woven polymer fiber matrix having dispersed throughout a siloxyfluorocarbon (SFC) networked polymer and a fluorinated polyhedral oligomeric silsesquioxane.
    Type: Grant
    Filed: April 25, 2013
    Date of Patent: September 12, 2017
    Assignee: Xerox Corporation
    Inventors: Brynn M. Dooley, Yu Qi, Edward G. Zwartz, Nan-Xing Hu