Patents by Inventor Kevin F. Marcell

Kevin F. Marcell 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: 10175593
    Abstract: A method includes grinding a wax into wax particles having a size in a range from about 600 microns to about 800 microns forming a mixture of the wax particles with water and a surfactant; and homogenizing the mixture to form a wax dispersion, the homogenizing step is maintained below about 35° C. A wax dispersion includes a wax a surfactant; and water, particles of the wax dispersion are a uniform, irregular, non-platelet morphology. A wax dispersion made by a process includes grinding a wax into wax particles having a size in a range from about 600 microns to about 800 microns, forming a mixture of the wax particles with water and a surfactant, and homogenizing the mixture to form a wax dispersion, the homogenizing step is maintained below about 35° C. and the wax has a uniform, irregular, non-platelet morphology imparted by combination of the grinding and homogenizing steps.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: January 8, 2019
    Assignee: XEROX CORPORATION
    Inventors: Judith M. Vandewinckel, Kevin F. Marcell, Chieh-Min Cheng, Brian J. Marion, Scott M. Smith
  • Publication number: 20180059559
    Abstract: A method includes grinding a wax into wax particles having a size in a range from about 600 microns to about 800 microns forming a mixture of the wax particles with water and a surfactant; and homogenizing the mixture to form a wax dispersion, the homogenizing step is maintained below about 35° C. A wax dispersion includes a wax a surfactant; and water, particles of the wax dispersion are a uniform, irregular, non-platelet morphology. A wax dispersion made by a process includes grinding a wax into wax particles having a size in a range from about 600 microns to about 800 microns, forming a mixture of the wax particles with water and a surfactant, and homogenizing the mixture to form a wax dispersion, the homogenizing step is maintained below about 35° C. and the wax has a uniform, irregular, non-platelet morphology imparted by combination of the grinding and homogenizing steps.
    Type: Application
    Filed: August 29, 2016
    Publication date: March 1, 2018
    Inventors: Judith M. Vandewinckel, Kevin F. Marcell, Chieh-Min Cheng, Brian J. Marion, Scott M. Smith
  • Patent number: 9901848
    Abstract: A stabilizer disc for a liquid that reduces or prevents the formation of a foam on an upper surface of the liquid. The stabilizer disc has a width and a height, wherein the width is greater than the height. The stabilizer disc further has a surface roughness within a disclosed range of surface roughness (i.e., surface finish) values. Further, a plurality of stabilizer discs may be used to cover a disclosed percentage of a surface area of the fluid. A method for reducing the formation of a foam on the liquid within a container during transport and/or storage is also described.
    Type: Grant
    Filed: October 15, 2014
    Date of Patent: February 27, 2018
    Assignee: XEROX CORPORATION
    Inventors: Judith M. Vandewinckel, Monica B. Skerker, Kevin F. Marcell, Michael L. Mehan
  • Patent number: 9663615
    Abstract: A method of synthesizing a branched polyester resin. Particularly, the method includes an alkoxylation reaction that includes reacting a monomer bisphenol A with a cyclic alkylene carbonate.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: May 30, 2017
    Assignee: XEROX CORPORATION
    Inventors: Karen A. Moffat, Shigang S. Qiu, Yulin Wang, Kevin F. Marcell, Wafa F. Bashir, Richard P N Veregin, John Lawrence Pawlak, Christopher M. Wolfe
  • Publication number: 20160107102
    Abstract: A stabilizer disc for a liquid that reduces or prevents the formation of a foam on an upper surface of the liquid. The stabilizer disc has a width and a height, wherein the width is greater than the height. The stabilizer disc further has a surface roughness within a disclosed range of surface roughness (i.e., surface finish) values. Further, a plurality of stabilizer discs may be used to cover a disclosed percentage of a surface area of the fluid. A method for reducing the formation of a foam on the liquid within a container during transport and/or storage is also described.
    Type: Application
    Filed: October 15, 2014
    Publication date: April 21, 2016
    Inventors: Judith M. Vandewinckel, Monica B. Skerker, Kevin F. Marcell, Michael L. Mehan
  • Patent number: 9316936
    Abstract: The disclosure describes a pigment of certain surface area for use in toner.
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: April 19, 2016
    Assignee: Xerox Corporation
    Inventors: Kevin F Marcell, Maria M Barden, Kimberly Anne Stoll, Christopher M Wolfe, Brian J Andaya
  • Patent number: 9229344
    Abstract: Unsaturated polyester resins and processes for making the same are disclosed herein. In particular, the process for making the resin provides resins with improved properties. The unsaturated polyester resins have substantially reduced free fumaric acid as compared to that made from conventional processes. The toner resins are used to prepare toner compositions that have improved performance.
    Type: Grant
    Filed: April 17, 2014
    Date of Patent: January 5, 2016
    Assignee: XEROX CORPORATION
    Inventors: Karen A. Moffat, Yulin Wang, Shigang Steven Qiu, John Lawrence Pawlak, Alexander N. Klymachyov, Kevin F. Marcell, Judith M. Vandewinckel, Wafa F. Bashir, Richard P. N. Veregin, Christopher M. Wolfe
  • Patent number: 9223239
    Abstract: Amorphous polyester resins and processes for making the same are disclosed herein. In particular, the process for making the resin provides resins with improved properties. The amorphous polyester resins have substantially reduced free fumaric acid as compared to that made from conventional processes. The toner resins are used to prepare toner compositions the have improved performance.
    Type: Grant
    Filed: April 17, 2014
    Date of Patent: December 29, 2015
    Assignee: XEROX CORPORATION
    Inventors: Karen A. Moffat, Yulin Wang, Shigang Steven Qiu, John Lawrence Pawlak, Alexander N. Klymachyov, Kevin F. Marcell, Judith M. Vandewinckel, Wafa F. Bashir, Richard P. N. Veregin, Christopher M. Wolfe
  • Patent number: 9187605
    Abstract: A process includes dissolving a polyester resin in an organic solvent to form a solution, the polyester resin has a latex-destabilizing cation, removing substantially all of the latex-destabilizing cation, neutralizing the solution of the polyester resin, adding a sufficient amount of water to the neutralized solution form an emulsion, and removing a portion of the organic solvent from the emulsion to form a latex of the polyester resin.
    Type: Grant
    Filed: July 18, 2013
    Date of Patent: November 17, 2015
    Assignee: XEROX CORPORATION
    Inventors: Yulin Wang, Karen Moffat, John L. Pawlak, Kevin F. Marcell, Steven M. Malachowski
  • Publication number: 20150301466
    Abstract: Amorphous polyester resins and processes for making the same are disclosed herein. In particular, the process for making the resin provides resins with improved properties. The amorphous polyester resins have substantially reduced free fumaric acid as compared to that made from conventional processes. The toner resins are used to prepare toner compositions the have improved performance.
    Type: Application
    Filed: April 17, 2014
    Publication date: October 22, 2015
    Applicant: XEROX CORPORATION
    Inventors: Karen A. Moffat, Yulin Wang, Shigang Steven Qiu, John Lawrence Pawlak, Alexander N. Klymachyov, Kevin F. Marcell, Judith M. Vandewinckel, Wafa F. Bashir, Richard P.N. Veregin, Christopher M. Wolfe
  • Publication number: 20150301467
    Abstract: Unsaturated polyester resins and processes for making the same are disclosed herein. In particular, the process for making the resin provides resins with improved properties. The unsaturated polyester resins have substantially reduced free fumaric acid as compared to that made from conventional processes. The toner resins are used to prepare toner compositions that have improved performance.
    Type: Application
    Filed: April 17, 2014
    Publication date: October 22, 2015
    Applicant: XEROX CORPORATION
    Inventors: Karen A. Moffat, Yulin Wang, Shigang Steven Qiu, John Lawrence Pawlak, Alexander N. Klymachyov, Kevin F. Marcell, Judith M. Vandewinckel, Wafa F. Bashir, Richard P.N. Veregin, Christopher M. Wolfe
  • Patent number: 9152063
    Abstract: The present disclosure provides a toner comprising a bioresin and two waxes with improved fuser release.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: October 6, 2015
    Assignee: Xerox Corporation
    Inventors: Mark E Mang, Juan A Morales-Tirado, Tab A Tress, Kevin F Marcell, Brian J Andaya
  • Publication number: 20150072283
    Abstract: The disclosure describes a pigment of certain surface area for use in toner.
    Type: Application
    Filed: August 28, 2013
    Publication date: March 12, 2015
    Applicant: Xerox Corporation
    Inventors: Kevin F. Marcell, Maria M. Barden, Kimberly Anne Stoll, Christopher M. Wolfe, Brian J. Andaya
  • Publication number: 20150025174
    Abstract: A process includes dissolving a polyester resin in an organic solvent to form a solution, the polyester resin has a latex-destabilizing cation, removing substantially all of the latex-destabilizing cation, neutralizing the solution of the polyester resin, adding a sufficient amount of water to the neutralized solution form an emulsion, and removing a portion of the organic solvent from the emulsion to form a latex of the polyester resin.
    Type: Application
    Filed: July 18, 2013
    Publication date: January 22, 2015
    Inventors: Yulin Wang, Karen Moffat, John L. Pawlak, Kevin F. Marcell, Steven M. Malachowski
  • Publication number: 20150004381
    Abstract: The present disclosure provides a toner comprising a bioresin and two waxes with improved fuser release.
    Type: Application
    Filed: June 27, 2013
    Publication date: January 1, 2015
    Applicant: Xerox Corporation
    Inventors: Mark E. Mang, Juan A. Morales-Tirado, Tab A. Tress, Kevin F. Marcell, Brian J. Andaya
  • Patent number: 8603721
    Abstract: Disclosed is a process for preparing toner particles which comprises: (a) selecting a carbon black; (b) measuring the surface level of sulfur of the carbon black by X-ray Photoelectron Spectroscopy to ensure that the surface level of sulfur is no more than about 0.05 atomic percent; and (c) mixing the carbon black with a resin to generate a toner composition.
    Type: Grant
    Filed: April 6, 2011
    Date of Patent: December 10, 2013
    Assignee: Xerox Corporation
    Inventors: Thomas P Debies, Timothy L Lincoln, Kevin F Marcell
  • Patent number: 8455171
    Abstract: The present disclosure provides processes for reducing the particle size of latex resins and toners produced with such resins. In embodiments, a carboxylic acid may be added to materials utilized to produce a latex and reduce the particle size of the resulting latex particles and toner particles. In accordance with the present disclosure, one may be able to utilize materials for the production of latex resins and toners which may otherwise produce particles that are too large in the absence of the carboxylic acid.
    Type: Grant
    Filed: May 31, 2007
    Date of Patent: June 4, 2013
    Assignee: Xerox Corporation
    Inventors: Robert D. Bayley, Timothy L. Lincoln, Kevin F. Marcell, Grazyna E. Kmiecik-Lawrynowicz, Maura A. Sweeney, Daniel W. Asarese, Chieh-Min Cheng, Zhen Lai
  • Publication number: 20120258396
    Abstract: Disclosed is a process for preparing toner particles which comprises: (a) selecting a carbon black; (b) measuring the surface level of sulfur of the carbon black by X-ray Photoelectron Spectroscopy to ensure that the surface level of sulfur is no more than about 0.05 atomic percent; and (c) mixing the carbon black with a resin to generate a toner composition.
    Type: Application
    Filed: April 6, 2011
    Publication date: October 11, 2012
    Applicant: XEROX CORPORATION
    Inventors: Thomas P. Debies, Timothy L. Lincoln, Kevin F. Marcell
  • Patent number: 8211609
    Abstract: The present disclosure provides toners including amorphous resins and crystalline resins. Toners with high glass transition temperatures and little plasticization may be obtained in accordance with the present disclosure.
    Type: Grant
    Filed: November 14, 2007
    Date of Patent: July 3, 2012
    Assignee: Xerox Corporation
    Inventors: Mark E. Mang, Timothy L. Lincoln, Yuhua Tong, Kevin F. Marcell
  • Patent number: 7749670
    Abstract: Embodiments include a toner with a fractionated and/or distilled wax having from about 30 to about 64 carbon units, a degree of crystallinity as calculated by heat of melting and as measured by DSC of from about 55 to about 100, a Mw is from about 500 to about 800, and a polydispersity of from about 1 to about 1.05.
    Type: Grant
    Filed: November 14, 2005
    Date of Patent: July 6, 2010
    Assignee: Xerox Corporation
    Inventors: Raj D. Patel, David J. Sanders, T Hwee Ng, Stephan V. Drappel, Sandra J. Gardner, Sonja Hadzidedic, Louis V. Isganitis, Timothy L. Lincoln, Kevin F. Marcell