Patents by Inventor Karen Moffat

Karen Moffat 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 Additive For Three-Dimensional Polymeric Printing Powders
    Publication number: 20200308330
    Abstract: A composition including a three-dimensional polymeric printing powder; an organic polymeric additive on at least a portion of an external surface of the three-dimensional polymeric printing powder; wherein the organic polymeric additive is optionally cross-linked; and optionally, an inorganic additive on at least a portion of an external surface of the three-dimensional polymeric printing powder. A process for preparing a three-dimensional polymeric printing powder having an organic polymeric additive disposed thereon. A process for employing the three-dimensional polymeric printing powder including selective laser sintering.
    Type: Application
    Filed: March 29, 2019
    Publication date: October 1, 2020
    Inventors: Richard P. N. Veregin, Nan-Xing Hu, Karen A. Moffat, Michael Steven Hawkins
  • Toner compositions with white colorants and processes of making thereof
    Patent number: 10705442
    Abstract: The present disclosure relates to toner compositions containing a high loading of white colorant of greater than 30 weight % by weight of the toner and processes thereof. The toner exhibits a lightness (L*) of at least 75.
    Type: Grant
    Filed: August 3, 2016
    Date of Patent: July 7, 2020
    Assignee: XEROX CORPORATION
    Inventors: Karen A. Moffat, David J. W. Lawton, Melanie L. Davis, Juan A. Morales-Tirado, Varun Sambhy
  • Cold pressure fix toner compositions based on small molecule crystalline and amorphous organic compound mixtures
    Patent number: 10520840
    Abstract: A cold pressure fix toner composition includes at least one C16 to C80 crystalline organic material having a melting point in a range from about 30° C. to about 130° C. and at least one C16 to C80 amorphous organic material having a Tg of from about ?30° C. to about 70° C. A method of cold pressure fix toner application includes providing the cold pressure fix toner composition, disposing the cold pressure fix toner composition on a substrate and applying pressure to the disposed composition on the substrate under cold pressure fixing conditions. The cold pressure fix toner compositions can be formed into latexes.
    Type: Grant
    Filed: January 18, 2018
    Date of Patent: December 31, 2019
    Assignee: XEROX CORPORATION
    Inventors: Richard Philip Nelson Veregin, Nan-Xing Hu, Guerino G. Sacripante, Karen A. Moffat, Jennifer L. Belelie
  • TONER COMPOSITIONS WITH WHITE COLORANTS AND PROCESSES OF MAKING THEREOF
    Publication number: 20180173128
    Abstract: The present disclosure relates to toner compositions containing a high loading of white colorant of greater than 30 weight % by weight of the toner and processes thereof. The toner exhibits a lightness (L*) of at least 75.
    Type: Application
    Filed: February 1, 2018
    Publication date: June 21, 2018
    Inventors: Karen A. Moffat, David J.W. Lawton, Melanie L. Davis, Juan A. Morales-Tirado, Varun Sambhy
  • TONER COMPOSITIONS WITH WHITE COLORANTS AND PROCESSES OF MAKING THEREOF
    Publication number: 20180173127
    Abstract: The present disclosure relates to toner compositions containing a high loading of white colorant of greater than 30 weight % by weight of the toner and processes thereof. The toner exhibits a lightness (L*) of at least 70 and, in further embodiments, at least 75.
    Type: Application
    Filed: February 1, 2018
    Publication date: June 21, 2018
    Inventors: KAREN A. MOFFAT, DAVID J.W. LAWTON, MELANIE L. DAVIS, JUAN A. MORALES-TIRADO, VARUN SAMBHY, RICHARD P.N. VEREGIN
  • TONER COMPOSITIONS WITH WHITE COLORANTS AND PROCESSES OF MAKING THEREOF
    Publication number: 20180157187
    Abstract: The present disclosure relates to toner compositions containing a high loading of white colorant of greater than 30 weight % by weight of the toner and processes thereof. The toner exhibits a lightness (L*) of at least 75.
    Type: Application
    Filed: February 1, 2018
    Publication date: June 7, 2018
    Inventors: KAREN A. MOFFAT, DAVID J.W. LAWTON, MELANIE L. DAVIS, JUAN A. MORALES-TIRADO, VARUN SAMBHY, RICHARD P.N. VEREGIN
  • Carboxylic acid or acid salt functionalized polyester polymers
    Patent number: 9982088
    Abstract: The present disclosure describes a polyester that contains plural pendant adjacent carboxylic acid or acid salt side groups for use in making a toner for use in imaging devices.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: May 29, 2018
    Assignees: XEROX CORPORATION, NATIONAL RESEARCH COUNCIL OF CANADA
    Inventors: Karen A. Moffat, Dragan Nikolic, Valerie M. Farrugia, Jordan H. Wosnick, Andriy Kovalenko, Alexander Kobryn, Sergey Gusarov
  • COLD PRESSURE FIX TONER COMPOSITIONS BASED ON SMALL MOLECULE CRYSTALLINE AND AMORPHOUS ORGANIC COMPOUND MIXTURES
    Publication number: 20180143548
    Abstract: A cold pressure fix toner composition includes at least one C16 to C80 crystalline organic material having a melting point in a range from about 30° C. to about 130° C. and at least one C16 to C80 amorphous organic material having a Tg of from about ?30° C. to about 70° C. A method of cold pressure fix toner application includes providing the cold pressure fix toner composition, disposing the cold pressure fix toner composition on a substrate and applying pressure to the disposed composition on the substrate under cold pressure fixing conditions. The cold pressure fix toner compositions can be formed into latexes.
    Type: Application
    Filed: January 18, 2018
    Publication date: May 24, 2018
    Inventors: Richard Philip Nelson Veregin, Nan-Xing Hu, Guerino G. Sacripante, Karen A. Moffat, Jennifer L. Belelie
  • Cold pressure fix toner compositions based on small molecule crystalline and amorphous organic compound mixtures
    Patent number: 9910373
    Abstract: A cold pressure fix toner composition includes at least one C16 to C80 crystalline organic material having a melting point in a range from about 30° C. to about 130° C. and at least one C16 to C80 amorphous organic material having a Tg of from about ?30° C. to about 70° C. A method of cold pressure fix toner application includes providing the cold pressure fix toner composition, disposing the cold pressure fix toner composition on a substrate and applying pressure to the disposed composition on the substrate under cold pressure fixing conditions. The cold pressure fix toner compositions can be formed into latexes.
    Type: Grant
    Filed: July 17, 2015
    Date of Patent: March 6, 2018
    Assignee: XEROX CORPORATION
    Inventors: Richard Philip Nelson Veregin, Nan-Xing Hu, Guerino G. Sacripante, Karen A. Moffat, Jennifer L. Belelie
  • TONER COMPOSITIONS WITH WHITE COLORANTS AND PROCESSES OF MAKING THEREOF
    Publication number: 20180039194
    Abstract: The present disclosure relates to toner compositions containing a high loading of white colorant of greater than 30 weight % by weight of the toner and processes thereof. The toner exhibits a lightness (L*) of at least 75.
    Type: Application
    Filed: August 3, 2016
    Publication date: February 8, 2018
    Inventors: Karen A. MOFFAT, DAVID J.W. LAWTON, MELANIE L. DAVIS, JUAN A. MORALES-TIRADO, VARUN SAMBHY
  • Toner compositions
    Patent number: 9804513
    Abstract: The present disclosure provides processes for producing toners by emulsion aggregation where the resulting toner particles have high pigment loadings and desired circularity. The methods include adding a metal, in embodiments a metal salt, at the beginning of coalescence, which surprisingly speeds the coalescence process and produces toner particles having a desired size and circularity for use in electrophotographic imaging systems.
    Type: Grant
    Filed: July 10, 2014
    Date of Patent: October 31, 2017
    Assignee: Xerox Corporation
    Inventors: Daryl Vanbesien, Yixin Gong, Karen A Moffat, Richard P N Veregin, Cuong Vong, Jordan H Wosnick, Suxia Yang
  • Method of making branched polyester resin
    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
  • Method for generation of nanoparticles
    Patent number: 9644096
    Abstract: A discrete nanostructure formed by a method comprising providing an aliphatic multi-block copolymer. The aliphatic multi-block copolymer includes at least one polyester block and at least one functionalized polycarbonate block. The aliphatic multi-block copolymer, a deprotonating agent and water are mixed to form an aqueous mixture. The aqueous mixture is maintained at a reaction temperature suitable to result in self-assembly of the multi-block copolymer into nanoparticles.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: May 9, 2017
    Assignees: XEROX CORPORATION, NATIONAL RESEARCH COUNCIL OF CANADA
    Inventors: Andrew J. Myles, Karen A. Moffat, Valerie M. Farrugia, Jordan H. Wosnick
  • Solid red ink formulations
    Patent number: 9605171
    Abstract: A solid ink including an ink vehicle and a colorant, the colorant includes an orange colorant and a red colorant, where the orange colorant absorbs light having a wavelength of from about 400 to about 560 nm, and where the red colorant absorbs light having a wavelength of from about 510 to 580 nm. The ink substantially matches PANTONE® Red 032 or PANTONE® Warm red.
    Type: Grant
    Filed: November 2, 2012
    Date of Patent: March 28, 2017
    Assignee: Xerox Corporation
    Inventors: Valerie M Farrugia, C Geoffrey Allen, Jordan H Wosnick, Eric Rotberg, Karen A Moffat, Richard P N Veregin, Suxia Yang, Biby E Abraham
  • CARBOXYLIC ACID OR ACID SALT FUNCTIONALIZED POLYESTER POLYMERS
    Publication number: 20170066872
    Abstract: The present disclosure describes a polyester that contains plural pendant adjacent carboxylic acid or acid salt side groups for use in making a toner for use in imaging devices.
    Type: Application
    Filed: November 18, 2016
    Publication date: March 9, 2017
    Inventors: KAREN A. MOFFAT, DRAGAN NIKOLIC, VALERIE M. FARRUGIA, JORDAN H. WOSNICK, ANDRIY KOVALENKO, ALEXANDER KOBRYN, SERGEY GUSAROV
  • Method of making branched polyester resin with a target glass transition temperature
    Patent number: 9580543
    Abstract: A method of making a branched polyester resin with a target glass transition temperature. Particularly, the target glass transition temperature can be achieved by adjusting the molar ratio of the first cyclic alkylene carbonate to the second cyclic alkylene carbonate; adjusting the molar ratio of the first alkoxylated BPA monomer to the second alkoxylated BPA monomers; adjusting the molar ratio of the first diacid to the second diacid; or any combination thereof.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: February 28, 2017
    Assignee: XEROX CORPORATION
    Inventors: Shigang S. Qiu, Karen A. Moffat, Keegan Rankin
  • Carboxylic acid or acid salt functionalized polyester polymers
    Patent number: 9581923
    Abstract: The present disclosure describes a polyester that contains plural pendant adjacent carboxylic acid or acid salt side groups for use in making a toner for use in imaging devices.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: February 28, 2017
    Assignees: XEROX CORPORATION, NATIONAL RESEARCH COUNCIL OF CANADA
    Inventors: Karen A. Moffat, Dragan Nikolic, Valerie M. Farrugia, Jordan H. Wosnick, Andriy Kovalenko, Alexander Kobryn, Sergey Gusarov
  • Toner Compositions
    Publication number: 20170031254
    Abstract: The present disclosure provides processes for producing toners by emulsion aggregation where the resulting toner particles have high pigment loadings and desired circularity. The methods include adding a metal, in embodiments a metal salt, at the beginning of coalescence, which surprisingly speeds the coalescence process and produces toner particles having a desired size and circularity for use in electrophotographic imaging systems.
    Type: Application
    Filed: July 10, 2014
    Publication date: February 2, 2017
    Inventors: Daryl Vanbesien, Yixin Gong, Karen A. Moffat, Richard P.N. Veregin, Cuong Vong, Jordan H. Wosnick, Suxia Yang
  • COLD PRESSURE FIX TONER COMPOSITIONS BASED ON SMALL MOLECULE CRYSTALLINE AND AMORPHOUS ORGANIC COMPOUND MIXTURES
    Publication number: 20170017170
    Abstract: A cold pressure fix toner composition includes at least one C16 to C80 crystalline organic material having a melting point in a range from about 30° C. to about 130° C. and at least one C16 to C80 amorphous organic material having a Tg of from about ?30° C. to about 70° C. A method of cold pressure fix toner application includes providing the cold pressure fix toner composition, disposing the cold pressure fix toner composition on a substrate and applying pressure to the disposed composition on the substrate under cold pressure fixing conditions. The cold pressure fix toner compositions can be formed into latexes.
    Type: Application
    Filed: July 17, 2015
    Publication date: January 19, 2017
    Inventors: Richard Philip Nelson Veregin, Nan-Xing Hu, Guerino G. Sacripante, Karen A. Moffat, Jennifer L. Belelie
  • METHOD FOR GENERATION OF NANOPARTICLES
    Publication number: 20160297966
    Abstract: A discrete nanostructure formed by a method comprising providing an aliphatic multi-block copolymer. The aliphatic multi-block copolymer includes at least one polyester block and at least one functionalized polycarbonate block. The aliphatic multi-block copolymer, a deprotonating agent and water are mixed to form an aqueous mixture. The aqueous mixture is maintained at a reaction temperature suitable to result in self-assembly of the multi-block copolymer into nanoparticles.
    Type: Application
    Filed: June 23, 2016
    Publication date: October 13, 2016
    Inventors: Andrew J. Myles, Karen A. Moffat, Valerie M. Farrugia, Jordan H. Wosnick