Patents by Inventor Kimberly D. Nosella

Kimberly D. Nosella 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).

  • Preparing amorphous polyester resin emulsions
    Patent number: 9348248
    Abstract: A process for making a latex emulsion including contacting at least one amorphous polyester resin with at least two organic solvents to form a resin mixture, adding a neutralizing agent, and deionized water to the resin mixture, removing the solvent from the formed latex, and separating the solvent from water. Further, the process is carried out above the resin Tg for making the latex, which drives the latex particle size under 100 nm, where toners made from the latex show improved charging performance.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: May 24, 2016
    Assignee: Xerox Corporation
    Inventors: Shigang Qiu, Richard P N Veregin, Kimberly D Nosella, Santiago Faucher, Cuong Vong, Enno E Agur
  • Toner particles comprising both polyester and styrene acrylate polymers having a polyester shell
    Patent number: 9341968
    Abstract: The disclosure provides a toner composition comprising toner particles with a core and a shell, wherein the core comprises a polyester polymer and a styrene acrylate polymer, and the shell comprises a polyester polymer and, optionally, a styrene acrylate polymer, either or both of which can be the same or different from that in the core.
    Type: Grant
    Filed: April 1, 2015
    Date of Patent: May 17, 2016
    Assignee: XEROX CORPORATION
    Inventors: David Lawton, Edward G. Zwartz, Kimberly D. Nosella, Melanie Lynn Davis, Richard P. N. Veregin, Guerino G. Sacripante
  • Toner compositions and processes
    Patent number: 9239529
    Abstract: Processes for producing toners are provided. The processes include determining the desired gloss for a given toner, and determining the desired amount of aluminum in the toner to obtain that gloss. Utilizing the processes of the present disclosure, the solids content of an emulsion utilized to produce such a toner, as well as the mixing speed utilized in the aggregation process and the temperature at which aggregation of the toner particles occurs, may then be selected to obtain toner particles possessing the desired amount of aluminum, and thus the desired gloss.
    Type: Grant
    Filed: December 20, 2010
    Date of Patent: January 19, 2016
    Assignee: Xerox Corporation
    Inventors: Kimberly D. Nosella, Daryl W. Vanbesien, Allan K. Chen, Sonja Hadzidedic
  • Preparing colorant dispersions using acoustic mixing
    Patent number: 9223236
    Abstract: The present disclosure provides processes for making inorganic or organic colorant dispersions using an acoustic mixer, where such dispersion may be used to make toner. Such processes apply low frequency, high intensity acoustic energy and a consistent shear field throughout an entire mixing vessel and provide uniform dispersion of colorants within minutes.
    Type: Grant
    Filed: March 1, 2013
    Date of Patent: December 29, 2015
    Assignee: Xerox Corporation
    Inventors: Shigang Qiu, Santiago Faucher, Kimberly D Nosella, David R Kurceba, Yulin Wang, Karina Lopez
  • Processes for producing polyester latexes via solvent-based and solvent-free emulsification
    Patent number: 9201324
    Abstract: A process for making a latex emulsion suitable for use in a toner composition includes contacting at least one polyester resin optionally with an organic solvent to form a resin mixture, adding a primary amine, optionally a surfactant, and deionized water to the mixture.
    Type: Grant
    Filed: February 18, 2010
    Date of Patent: December 1, 2015
    Assignee: Xerox Corporation
    Inventors: Shigang S. Qiu, Kimberly D. Nosella, Tie Hwee Ng, Santiago Faucher, Fumii Higuchi
  • Toner additives for improved charging
    Patent number: 9188895
    Abstract: Toner additives for improving overall toner charging. In particular, incorporation of fluorinated surfactants into latex for formation of toner core particles provide enhanced charging without any significant adverse impact on the other properties of the toner. Methods of making toners comprising the fluorinated surfactants are also provided.
    Type: Grant
    Filed: December 16, 2013
    Date of Patent: November 17, 2015
    Assignee: XEROX CORPORATION
    Inventors: Valerie M. Farrugia, Kimberly D. Nosella, Richard P. N. Veregin, Michael S. Hawkins
  • Hybrid emulsion aggregate toner
    Patent number: 9128395
    Abstract: Toners and processes useful in providing toners suitable for electrophotographic apparatuses, including apparatuses such as digital, image-on-image, and similar apparatuses. In particular, emulsion aggregate toner compositions that use two different emulsion aggregation (EA) technologies and which comprise a base resin composed of both styrene-acrylate and polyester resins. These toner compositions further include polyaluminum chloride (PAC) instead of the more commonly used aluminum sulfate as the flocculant or aggregating agent.
    Type: Grant
    Filed: January 22, 2014
    Date of Patent: September 8, 2015
    Assignee: XEROX CORPORATION
    Inventors: Kimberly D. Nosella, Guerino G. Sacripante, Richard P. N. Veregin, Edward G. Zwartz, David J. W. Lawton
  • Co-emulsification of Insoluble Compounds with Toner Resins
    Publication number: 20150241805
    Abstract: A process for making a latex emulsion suitable for use in a toner composition includes co-emulsifying a bio-based resin with an insoluble component, such as a pigment or wax, whereby the resin encapsulates the insoluble component. The resulting latex, including the insoluble component encapsulated in the resin, may then be utilized to form a toner. The insoluble component may thus be included in toner particles, which might otherwise be difficult to achieve, using emulsion aggregation processes.
    Type: Application
    Filed: May 12, 2015
    Publication date: August 27, 2015
    Inventors: Ke Zhou, Kimberly D. Nosella, Guerino Sacripante, Sonja Hadzidedic
  • TONER ADDITIVES FOR IMPROVED CHARGING
    Publication number: 20150168860
    Abstract: Toner additives for improving overall toner charging. In particular, incorporation of fluorinated surfactants into latex for formation of toner core particles provide enhanced charging without any significant adverse impact on the other properties of the toner. Methods of making toners comprising the fluorinated surfactants are also provided.
    Type: Application
    Filed: December 16, 2013
    Publication date: June 18, 2015
    Applicant: XEROX CORPORATION
    Inventors: Valerie M. Farrugia, Kimberly D. Nosella, Richard P.N. Veregin, Michael S. Hawkins
  • TONER ADDITIVES FOR IMPROVED CHARGING
    Publication number: 20150168861
    Abstract: Toner additives for improving overall toner charging. In particular, incorporation of fluorinated surfactants into latex for formation of toner core particles provide enhanced charging without any significant adverse impact on the other properties of the toner. Methods of making toners comprising the fluorinated surfactants are also provided.
    Type: Application
    Filed: December 16, 2013
    Publication date: June 18, 2015
    Applicant: XEROX CORPORATION
    Inventors: Valerie M. Farrugia, Kimberly D. Nosella, Richard P.N. Veregin, Michael S. Hawkins
  • Hybrid emulsion aggregate toner
    Patent number: 9046801
    Abstract: Emulsion aggregate toner compositions that use two different emulsion aggregation (EA) technologies. Namely, there is provided an emulsion aggregation toner that comprises a base resin composed of both styrene-acrylate and polyester resins. Such hybrid emulsion aggregation toner compositions are lower in cost but still maintain desirable developer properties like low minimum fusing temperature (MFT) and lower dielectric loss.
    Type: Grant
    Filed: October 29, 2013
    Date of Patent: June 2, 2015
    Assignee: XEROX CORPORATION
    Inventors: Kimberly D. Nosella, Guerino G. Sacripante, Edward G. Zwartz, Richard P. N. Veregin, Michael S. Hawkins, David J. W. Lawton
  • Co-emulsification of insoluble compounds with toner resins
    Patent number: 9029059
    Abstract: A process for making a latex emulsion suitable for use in a toner composition includes co-emulsifying a bio-based resin with an insoluble component, such as a pigment or wax, whereby the resin encapsulates the insoluble component. The resulting latex, including the insoluble component encapsulated in the resin, may then be utilized to form a toner. The insoluble component may thus be included in toner particles, which might otherwise be difficult to achieve, using emulsion aggregation processes.
    Type: Grant
    Filed: April 8, 2011
    Date of Patent: May 12, 2015
    Assignee: Xerox Corporation
    Inventors: Ke Zhou, Kimberly D. Nosella, Guerino G. Sacripante, Sonja Hadzidedic
  • HYBRID EMULSION AGGREGATE TONER
    Publication number: 20150118613
    Abstract: Emulsion aggregate toner compositions that use two different emulsion aggregation (EA) technologies. Namely, there is provided an emulsion aggregation toner that comprises a base resin composed of both styrene-acrylate and polyester resins. Such hybrid emulsion aggregation toner compositions are lower in cost but still maintain desirable developer properties like low minimum fusing temperature (MFT) and lower dielectric loss.
    Type: Application
    Filed: October 29, 2013
    Publication date: April 30, 2015
    Applicant: XEROX CORPORATION
    Inventors: KIMBERLY D. NOSELLA, Guerino G. Sacripante, Edward G. Zwartz, Richard P.N. Veregin, Michael S. Hawkins, David J.W. Lawton
  • HYBRID EMULSION AGGREGATE TONER
    Publication number: 20150118610
    Abstract: Toners and processes useful in providing toners suitable for electrophotographic apparatuses, including apparatuses such as digital, image-on-image, and similar apparatuses. In particular, emulsion aggregate toner compositions that use two different emulsion aggregation (EA) technologies and which comprise a base resin composed of both styrene-acrylate and polyester resins. These toner compositions further include polyaluminum chloride (PAC) instead of the more commonly used aluminum sulfate as the flocculant or aggregating agent.
    Type: Application
    Filed: January 22, 2014
    Publication date: April 30, 2015
    Applicant: XEROX CORPORATION
    Inventors: Kimberly D. Nosella, Guerino G. Sacripante, Richard P.N. Veregin, Edward G. Zwartz, David J.W. Lawton
  • TONER ADDITIVES FOR TUNABLE GLOSS
    Publication number: 20150104741
    Abstract: Toner additives for imparting certain properties to printed images. In particular, toner additives that provide desired tunable gloss levels. The present toner additives comprise polyolefins. The incorporation of such additives into toners, in particular, emulsion aggregation (EA) toners, have provided gloss control without any significant adverse impact on the minimum fix properties of the toner.
    Type: Application
    Filed: October 10, 2013
    Publication date: April 16, 2015
    Applicant: XEROX CORPORATION
    Inventors: VALERIE M. FARRUGIA, Kimberly D. Nosella, Jordan Wosnick, Michael J. D'Amato, Edward G. Zwartz
  • Preparing Amorphous Polyester Resin Emulsions
    Publication number: 20150104743
    Abstract: A process for making a latex emulsion including contacting at least one amorphous polyester resin with at least two organic solvents to form a resin mixture, adding a neutralizing agent, and deionized water to the resin mixture, removing the solvent from the formed latex, and separating the solvent from water. Further, the process is carried out above the resin Tg for making the latex, which drives the latex particle size under 100 nm, where toners made from the latex show improved charging performance.
    Type: Application
    Filed: December 22, 2014
    Publication date: April 16, 2015
    Inventors: Shigang Qiu, Richard PN Veregin, Kimberly D Nosella, Santiago Faucher, Cuong Vong, Enno E Agur
  • Continuous production of toner
    Patent number: 8968977
    Abstract: Continuous and semi-continuous emulsion aggregation processes for the production of toner particles are presented.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: March 3, 2015
    Assignee: Xerox Corporation
    Inventors: Santiago Faucher, Kimberly D Nosella, Melanie Davis, Edward Graham Zwartz
  • Batch/continuous production of toner
    Patent number: 8956797
    Abstract: A process for forming toner using an emulsion/aggregation scheme wherein particle aggregation occurs in a batch reactor and coalescence occurs in a continuous reactor. In embodiments, a continuous reactor comprises four sections joined in series.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: February 17, 2015
    Assignee: Xerox Corporation
    Inventors: Kimberly D Nosella, Santiago Faucher
  • Preparing amorphous polyester resin emulsions
    Patent number: 8916320
    Abstract: A process for making a latex emulsion including contacting at least one amorphous polyester resin with at least two organic solvents to form a resin mixture, adding a neutralizing agent, and deionized water to the resin mixture, removing the solvent from the formed latex, and separating the solvent from water. Further, the process is carried out above the resin Tg for making the latex, which drives the latex particle size under 100 nm, where toners made from the latex show improved charging performance.
    Type: Grant
    Filed: January 15, 2013
    Date of Patent: December 23, 2014
    Assignee: Xerox Corporation
    Inventors: Shigang Qiu, Richard P N Veregin, Kimberly D Nosella, Santiago Faucher, Cuong Vong, Enno E Agur
  • Preparing Colorant Dispersions Using Acoustic Mixing
    Publication number: 20140248558
    Abstract: The present disclosure provides processes for making inorganic or organic colorant dispersions using an acoustic mixer, where such dispersion may be used to make toner. Such processes apply low frequency, high intensity acoustic energy and a consistent shear field throughout an entire mixing vessel and provide uniform dispersion of colorants within minutes.
    Type: Application
    Filed: March 1, 2013
    Publication date: September 4, 2014
    Applicant: XEROX CORPORATION
    Inventors: Shigang Qiu, Santiago Faucher, Kimberly D. Nosella, David R. Kurceba, Yulin Wang, Karina Lopez