Patents by Inventor Linda S. Schriever

Linda S. Schriever 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).

  • Styrene/acrylate and polyester resin particles
    Patent number: 10095140
    Abstract: The present disclosure describes poly(styrene/acrylate)-polyester hybrid particles, wherein poly(styrene/acrylate) polymers are polymerized and entangled within a polyester seed particle in an interpenetrating polymer network.
    Type: Grant
    Filed: November 10, 2015
    Date of Patent: October 9, 2018
    Assignee: Xerox Corporation
    Inventors: Yanjia Zuo, Shigeng Li, Robert D Bayley, Peter V Nguyen, Linda S Schriever, Gregory K Thompson, Chieh-Min Cheng
  • Toner process comprising synthesizing amphiphilic block copolymers via emulsion polymerization
    Patent number: 9958797
    Abstract: A toner process comprising (a) providing at least one amphiphilic block copolymer prepared by surfactant-free emulsion polymerization comprising: dissolving a hydrophilic monomer in water; adding a hydrophobic monomer; adding a feed initiator to produce a colloidal dispersion of amphiphilic block copolymer; and optionally, discharging the amphiphilic block copolymer; (b) contacting one or more of a latex polymer, a wax; and a colorant with the colloidal dispersion of amphiphilic block copolymer to form a blend; or contacting the discharged amphiphilic block copolymer with one or more of a latex polymer, a wax dispersion, and a colorant dispersion, and forming a further dispersion; (c) heating the blend or further dispersion at a temperature below the glass transition temperature of the latex polymer to form aggregated toner particles; (d) adding a coalescing agent to the toner particles thereby coalescing the toner particles; and (e) recovering the toner particles.
    Type: Grant
    Filed: February 28, 2017
    Date of Patent: May 1, 2018
    Assignee: Xerox Corporation
    Inventors: Chunliang Lu, Yanjia Zuo, Shigeng Li, Peter Van Nguyen, Linda S. Schriever, Chieh-Min Cheng
  • Sparged toner
    Patent number: 9798257
    Abstract: A method for removing volatile organic compounds (VOC's) from toner slurries is described, including the isolated toner particles generated by that method.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: October 24, 2017
    Assignee: Xerox Corporation
    Inventors: Matthew W Croteau, Mark A Jackson, Roger B B Keeble, Harold R Judd, Munir Salman, Vincenzo G Marcello, Chieh-Min Cheng, Steven M Malachowski, Grazyna Kmiecik-Lawrynowicz, Linda S Schriever
  • Sparged Toner
    Publication number: 20170160659
    Abstract: A method for removing volatile organic compounds (VOC's) from toner slurries is described, including the isolated toner particles generated by that method.
    Type: Application
    Filed: December 3, 2015
    Publication date: June 8, 2017
    Inventors: Matthew W Croteau, Mark A Jackson, Roger BB Keeble, Harold R Judd, Munir Salman, Vincenzo G Marcello, Chieh-Min Cheng, Steven M Malachowski, Grazyna Kmiecik-Lawrynowicz, Linda S Schriever
  • Styrene/Acrylate and Polyester Resin Particles
    Publication number: 20170130044
    Abstract: The present disclosure describes poly(styrene/acrylate)-polyester hybrid particles, wherein poly(styrene/acrylate) polymers are polymerized and entangled within a polyester seed particle in an interpenetrating polymer network.
    Type: Application
    Filed: November 10, 2015
    Publication date: May 11, 2017
    Inventors: Yanjia Zuo, Shigeng Li, Robert D. Bayley, Peter V. Nguyen, Linda S. Schriever, Gregory K. Thompson, Chieh-Min Cheng
  • Magenta toner
    Patent number: 9354531
    Abstract: A process for making a latex emulsion where distillation occurs at an elevated temperature is used to make resin particles with a conditioned surface which can be used to make magenta toner with increased efficiency.
    Type: Grant
    Filed: July 1, 2014
    Date of Patent: May 31, 2016
    Assignee: XEROX CORPORATION
    Inventors: Shigeng Li, Christopher M Wolfe, Randy P Tin, Eric Godshall, Shigang Qiu, Peter V Nguyen, Jay L Schneider, Linda S Schriever, Steven M Malachowski, Amy A Grillo, Chieh-Min Cheng
  • Magenta Toner
    Publication number: 20160004175
    Abstract: A process for making a latex emulsion where distillation occurs at an elevated temperature is used to make resin particles with a conditioned surface which can be used to make magenta toner with increased efficiency.
    Type: Application
    Filed: July 1, 2014
    Publication date: January 7, 2016
    Inventors: Shigeng Li, Christopher M. Wolfe, Randy P Tin, Eric Godshall, Shigang Qiu, Peter V Nguyen, Jay L Schneider, Linda S Schriever, Steven M Malachowski, Amy A Grillo, Chieh-Min Cheng
  • Preparing Resin Emulsions
    Publication number: 20150168858
    Abstract: A process for making a latex emulsion suitable for use in a toner composition which applies the model of Brinkman to predict phase inversion point (PIP) during phase invention emulsification (PIE), including using this model to calculate the amount of water needed to complete the phase inversion for solvent reuse formulation.
    Type: Application
    Filed: December 16, 2013
    Publication date: June 18, 2015
    Applicant: Xerox Corporation
    Inventors: Shigeng Li, Shigang Qiu, Peter V. Nguyen, Linda S. Schriever, Amy A. Grillo, Chieh-Min Cheng