Patents by Inventor Edward Graham Zwartz

Edward Graham 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).

  • Surface layer and fuser member
    Patent number: 10465093
    Abstract: Described is a fuser member including a substrate and a release layer disposed on the substrate. The release layer includes a fluoropolymer having a plurality of metal fibers having a diameter of from about 5 nanometers to about 20 microns dispersed throughout the fluoropolymer. A method of manufacturing the fuser member is also provided.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: November 5, 2019
    Assignee: Xerox Corporation
    Inventors: Brynn Mary Dooley, Yu Qi, Edward Graham Zwartz, Nan-Xing Hu
  • Imaging processes
    Patent number: 10126671
    Abstract: The present disclosure provides processes for producing images with toner particles. In embodiments, toner particles of a certain diameter in size are applied to a substrate as an incomplete monolayer, and then fused to form an image that is a complete monolayer and possesses a thickness less than the diameter of the particles utilized to form the image.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: November 13, 2018
    Assignee: XEROX CORPORATION
    Inventors: Richard P. N. Veregin, Eric Rotberg, Edward Graham Zwartz, Suxia Yang, Daryl W. Vanbesien, Cuong Vong, Karen Ann Moffat
  • SURFACE LAYER AND FUSER MEMBER
    Publication number: 20170096569
    Abstract: Described is a fuser member including a substrate and a release layer disposed on the substrate. The release layer includes a fluoropolymer having a plurality of metal fibers having a diameter of from about 5 nanometers to about 20 microns dispersed throughout the fluoropolymer. A method of manufacturing the fuser member is also provided.
    Type: Application
    Filed: December 15, 2016
    Publication date: April 6, 2017
    Inventors: Brynn Mary Dooley, Yu Qi, Edward Graham Zwartz, Nan-Xing Hu
  • IMAGING PROCESSES
    Publication number: 20170090314
    Abstract: The present disclosure provides processes for producing images with toner particles. In embodiments, toner particles of a certain diameter in size are applied to a substrate as an incomplete monolayer, and then fused to form an image that is a complete monolayer and possesses a thickness less than the diameter of the particles utilized to form the image.
    Type: Application
    Filed: December 13, 2016
    Publication date: March 30, 2017
    Inventors: RICHARD P.N. VEREGIN, ERIC ROTBERG, EDWARD GRAHAM ZWARTZ, SUXIA YANG, DARYL W. VANBESIEN, CUONG VONG, KAREN ANN MOFFAT
  • Curable toner compositions and processes
    Patent number: 9594319
    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: September 3, 2009
    Date of Patent: March 14, 2017
    Assignee: Xerox Corporation
    Inventors: Edward Graham Zwartz, Guerino G. Sacripante
  • Imaging processes
    Patent number: 9581926
    Abstract: The present disclosure provides processes for producing images with toner particles. In embodiments, toner particles of a certain diameter in size are applied to a substrate as an incomplete monolayer, and then fused to form an image that is a complete monolayer and possesses a thickness less than the diameter of the particles utilized to form the image.
    Type: Grant
    Filed: April 13, 2010
    Date of Patent: February 28, 2017
    Assignee: XEROX CORPORATION
    Inventors: Richard P. N. Veregin, Eric Rotberg, Edward Graham Zwartz, Suxia Yang, Daryl W. Vanbesien, Cuong Vong, Karen Ann Moffat
  • Non-sticky erasable media with overcoat
    Patent number: 9507249
    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: May 11, 2010
    Date of Patent: November 29, 2016
    Assignee: XEROX CORPORATION
    Inventors: Gabriel Iftime, Jason Leong, Edward Graham Zwartz, Gordon Sisler, Kentaro Morimitsu, Adela Goredema, Peter M. Kazmaier
  • OPTIMIZED LATEX PARTICLE SIZE FOR IMPROVED HOT OFFSET TEMPERATURE FOR SUSTAINABLE TONERS
    Publication number: 20160216624
    Abstract: The disclosure provides sustainable toner particles of from about 180 nm to about 250 nm in a sustainable toner composition having a hot offset temperature of from about 190° C. to about 220° C.
    Type: Application
    Filed: April 4, 2016
    Publication date: July 28, 2016
    Inventors: Ke Zhou, Guerino G. Sacripante, Richard Philip Nelson Veregin, Edward Graham Zwartz, Abdisamed Sheik Qasim, Rashid Mahmood, Mark R. Elliott, Cuong Vong, Melanie Lynn Davis
  • Optimized latex particle size for improved hot offset temperature for sustainable toners
    Patent number: 9372422
    Abstract: The disclosure provides sustainable toner particles of from about 180 nm to about 250 nm in a sustainable toner composition having a hot offset temperature of from about 190° C. to about 220° C.
    Type: Grant
    Filed: January 22, 2014
    Date of Patent: June 21, 2016
    Assignee: XEROX CORPORATION
    Inventors: Ke Zhou, Guerino G. Sacripante, Richard Philip Nelson Veregin, Edward Graham Zwartz, Abdisamed Sheik Qasim, Rashid Mahmood, Mark R. Elliott, Cuong Vong, Melanie Lynn Davis
  • Spreadable ink composition and method of predicting whether ink composition will have acceptable spreading performance
    Patent number: 9303172
    Abstract: A phase change ink composition is disclosed. The phase change ink composition comprises a crystalline component and an amorphous component. At a temperature ranging from about 40° C. to about 80° C., the phase change ink simultaneously exhibits (i) a static force ranging from about 2 N to about 4.5 N, and (ii) a storage modulus ranging from about 300 MPa to about 700 Mpa. The crystalline component is not a wax. A method of predicting spreading performance of a phase change ink is also disclosed.
    Type: Grant
    Filed: October 31, 2013
    Date of Patent: April 5, 2016
    Assignee: XEROX CORPORATION
    Inventors: Gabriel Iftime, Gordon Sisler, Biby Esther Abraham, Nathan M. Bamsey, Edward Graham Zwartz
  • Tuning toner gloss with bio-based stabilizers
    Patent number: 9285693
    Abstract: The disclosure describes a process to produce toner with tunable gloss levels comprising a stabilizer to freeze particle growth following aggregation, where the stabilizer does not chelate metal ions.
    Type: Grant
    Filed: January 6, 2015
    Date of Patent: March 15, 2016
    Assignee: Xerox Corporation
    Inventors: Yulin Wang, Ke Zhou, Tie Hwee Ng, Edward Graham Zwartz, Cuong Vong, Shigang Qiu
  • Continuous toner coalescence processes
    Patent number: 9182691
    Abstract: Processes for continuously coalescing particles from an aggregated particle slurry are disclosed. An aggregated particle slurry is further heated in a first heat exchanger, and the heated slurry then flows through a residence time reactor. The slurry, now containing coalesced particles, then flows through a second heat exchanger and is quenched. The recovered coalesced particle slurry is then suitable for washing and drying. No moving parts are needed in this system.
    Type: Grant
    Filed: October 18, 2013
    Date of Patent: November 10, 2015
    Assignee: Xerox Corporation
    Inventors: David John William Lawton, David R. Kurceba, Edward Graham Zwartz, Daniel McDougall McNeil
  • OPTIMIZED LATEX PARTICLE SIZE FOR IMPROVED HOT OFFSET TEMPERATURE FOR SUSTAINABLE TONERS
    Publication number: 20150205219
    Abstract: The disclosure provides sustainable toner particles of from about 180 nm to about 250 nm in a sustainable toner composition having a hot offset temperature of from about 190° C. to about 220° C.
    Type: Application
    Filed: January 22, 2014
    Publication date: July 23, 2015
    Applicant: Xerox Corporation
    Inventors: Ke Zhou, Guerino G. Sacripante, Richard Philip Nelson Veregin, Edward Graham Zwartz, Abdisamed Sheik Qasim, Rashid Mahmood, Mark R. Elliott, Cuong Vong, Melanie Lynn Davis
  • SURFACE LAYER AND FUSER MEMBER
    Publication number: 20150140320
    Abstract: Described is a fuser member including a substrate and a release layer disposed on the substrate. The release layer includes a fluoropolymer having a plurality of metal fibers having a diameter of from about 5 nanometers to about 20 microns dispersed throughout the fluoropolymer. A method of manufacturing the fuser member is also provided.
    Type: Application
    Filed: November 18, 2013
    Publication date: May 21, 2015
    Applicant: Xerox Corporation
    Inventors: Brynn Mary Dooley, Yu Qi, Edward Graham Zwartz, Nan-Xing Hu
  • FUSER MEMBER AND COMPOSITION OF MATTER
    Publication number: 20150140881
    Abstract: Described is provided a composition of matter that includes a layer having a metal coated non-woven polymer fiber mesh. The metal coated non-woven polymer fiber mesh has pores of a size of from about 1 micron to about 50 microns, and a fluoropolymer dispersed on and throughout the metal coated non-woven polymer fiber mesh. A method of manufacturing is also provided.
    Type: Application
    Filed: November 18, 2013
    Publication date: May 21, 2015
    Applicant: Xerox Corporation
    Inventors: Brynn Mary Dooley, Yu Qi, Edward Graham Zwartz, Nan-Xing Hu
  • SPREADABLE INK COMPOSITION AND METHOD OF PREDICTING WHETHER INK COMPOSITION WILL HAVE ACCEPTABLE SPREADING PERFORMANCE
    Publication number: 20150114255
    Abstract: A phase change ink composition is disclosed. The phase change ink composition comprises a crystalline component and an amorphous component. At a temperature ranging from about 40° C. to about 80° C., the phase change ink simultaneously exhibits (i) a static force ranging from about 2 N to about 4.5 N, and (ii) a storage modulus ranging from about 300 MPa to about 700 Mpa. The crystalline component is not a wax. A method of predicting spreading performance of a phase change ink is also disclosed.
    Type: Application
    Filed: October 31, 2013
    Publication date: April 30, 2015
    Applicant: XEROX CORPORATION
    Inventors: Gabriel Iftime, Gordon Sisler, Biby Esther Abraham, Nathan M. Bamsey, Edward Graham Zwartz
  • Tuning Toner Gloss with Bio-based Stabilizers
    Publication number: 20150118609
    Abstract: The disclosure describes a process to produce toner with tunable gloss levels comprising a stabilizer to freeze particle growth following aggregation, where the stabilizer does not chelate metal ions.
    Type: Application
    Filed: January 6, 2015
    Publication date: April 30, 2015
    Inventors: Yulin Wang, Ke Zhou, Tie Hwee Ng, Edward Graham Zwartz, Cuong Vong, Shigang Qiu
  • CONTINUOUS TONER COALESCENCE PROCESSES
    Publication number: 20150111151
    Abstract: Processes for continuously coalescing particles from an aggregated particle slurry are disclosed. An aggregated particle slurry is further heated in a first heat exchanger, and the heated slurry then flows through a residence time reactor. The slurry, now containing coalesced particles, then flows through a second heat exchanger and is quenched. The recovered coalesced particle slurry is then suitable for washing and drying. No moving parts are needed in this system.
    Type: Application
    Filed: October 18, 2013
    Publication date: April 23, 2015
    Applicant: Xerox Corporation
    Inventors: David John William Lawton, David R. Kurceba, Edward Graham Zwartz, Daniel McDougall McNeil
  • Toner compositions and processes
    Patent number: 9012118
    Abstract: Toners are provided which possess excellent blocking characteristics. The toners include cores including amorphous resins having low glass transition temperatures, amorphous resins having high glass transition temperatures, and crystalline resins, and shells including amorphous resins having high glass transition temperatures.
    Type: Grant
    Filed: March 4, 2010
    Date of Patent: April 21, 2015
    Assignee: Xerox Corporation
    Inventors: Allan K. Chen, Tie Hwee Ng, Edward Graham Zwartz, Michael S. Hawkins
  • Imaging processes
    Patent number: RE49572
    Abstract: The present disclosure provides processes for producing images with toner particles. In embodiments, toner particles of a certain diameter in size are applied to a substrate as an incomplete monolayer, and then fused to form an image that is a complete monolayer and possesses a thickness less than the diameter of the particles utilized to form the image.
    Type: Grant
    Filed: November 12, 2020
    Date of Patent: July 4, 2023
    Assignee: XEROX CORPORATION
    Inventors: Richard P. N. Veregin, Eric Rotberg, Edward Graham Zwartz, Suxia Yang, Daryl W. Vanbesien, Cuong Vong, Karen Ann Moffat