Patents by Inventor Valerie M. Farrugia

Valerie M. Farrugia 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).

  • POLYMER COATED SULFONATED POLYESTER - SILVER NANOPARTICLE COMPOSITE FILAMENTS AND METHODS OF MAKING THE SAME
    Publication number: 20170298536
    Abstract: A composite filament includes a core particle comprising a sulfonated polyester matrix and a plurality of silver nanoparticles dispersed within the matrix, and a shell polymer disposed about the core particle, and methods of making thereof. Various articles can be manufactured from such composite filaments.
    Type: Application
    Filed: April 13, 2016
    Publication date: October 19, 2017
    Inventors: Valerie M. Farrugia, Barkev Keoshkerian, Michelle N. Chrétien
  • STYRENIC-BASED POLYMER COATED SILVER NANOPARTICLE-SULFONATED POLYESTER COMPOSITE POWDERS AND METHODS OF MAKING THE SAME
    Publication number: 20170298194
    Abstract: A composite powder includes a core particle comprising a sulfonated polyester matrix and a plurality of silver nanoparticles dispersed within the matrix, and a shell polymer disposed about the core particle, and methods of making thereof. Various articles can be manufactured from such composite powders.
    Type: Application
    Filed: April 13, 2016
    Publication date: October 19, 2017
    Inventors: Valerie M. Farrugia, Barkev Keoshkerian, Michelle N. Chrétien
  • SILVER POLYESTER-SULFONATED NANOPARTICLE COMPOSITE FILAMENTS AND METHODS OF MAKING THE SAME
    Publication number: 20170295795
    Abstract: A composite filament includes a sulfonated polyester matrix and a plurality of silver nanoparticles dispersed within the matrix and methods of making thereof. Various articles can be manufactured from such composite filaments.
    Type: Application
    Filed: April 13, 2016
    Publication date: October 19, 2017
    Inventors: Valerie M. Farrugia, Barkev Keoshkerian, Michelle N. Chrétien
  • Indirect printing apparatus employing sacrificial coating on intermediate transfer member
    Patent number: 9790373
    Abstract: A sacrificial coating composition for an image transfer member in an aqueous ink imaging system. The sacrificial coating composition includes a latex having polymer particles dispersed in a continuous liquid phase; at least one hygroscopic material; at least one surfactant; and water.
    Type: Grant
    Filed: July 20, 2016
    Date of Patent: October 17, 2017
    Inventors: Guiqin Song, Gordon Sisler, Brynn Dooley, Qi Zhang, Suxia Yang, Valerie M. Farrugia
  • Methods of preparing metal nanodendrimer structures
    Patent number: 9777124
    Abstract: A method includes heating a sulfonated polyester resin in an organic-free solvent, adding a solution of silver (I) ion to the heated resin in water to form a mixture, reducing silver (I) to silver(0) by heating the mixture from about 65° C. to about 90° C., thereby forming an emulsion of composite particles comprising a sulfonated polyester matrix and a plurality of silver nanoparticles disposed within the sulfonated polyester matrix, and allowing the silver nanoparticles to agglomerate into a silver nanodendrite structure.
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: October 3, 2017
    Assignee: XEROX CORPORATION
    Inventors: Valerie M. Farrugia, Alana Desouza, Sandra J. Gardner
  • CORE-SHELL METAL NANOPARTICLE COMPOSITE
    Publication number: 20170233535
    Abstract: A nanocomposite includes a core comprising a first polymer, a shell disposed about the core, the shell comprising a sulfonated polyester, the first polymer and sulfonated polyester are different, and a plurality of silver nanoparticles disposed throughout the shell layer.
    Type: Application
    Filed: May 4, 2017
    Publication date: August 17, 2017
    Inventors: Valerie M. Farrugia, ALANA DESOUZA, SANDRA J. GARDNER
  • EMULSION AGGREGATION TONER FOR SENSOR AND ANTIBACTERIAL APPLICATIONS
    Publication number: 20170235243
    Abstract: Provided is a toner that has a plurality of toner particles. Each toner particle can include a binder resin core and a shell disposed about the binder resin core. The binder resin core can include at least one binder resin. The shell can include a plurality of metal nanoparticles. The binder resin core can be prepared by forming an aggregate of the binder resin in which metallic nanoparticles are not present.
    Type: Application
    Filed: May 2, 2017
    Publication date: August 17, 2017
    Applicant: XEROX CORPORATION
    Inventor: Valerie M. Farrugia
  • Core-shell metal nanoparticle composite
    Patent number: 9718970
    Abstract: A nanocomposite includes a core comprising a first polymer, a shell disposed about the core, the shell comprising a sulfonated polyester, the first polymer and sulfonated polyester are different, and a plurality of silver nanoparticles disposed throughout the shell layer.
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: August 1, 2017
    Assignee: XEROX CORPORATION
    Inventors: Valerie M. Farrugia, Alana Desouza, Sandra J. Gardner
  • Toner compositions with antiplasticizers
    Patent number: 9684257
    Abstract: Disclosed herein include styrene-acrylic-based binder compositions containing an antiplasticizer with particles having a core-shell type structure and methods for their preparation.
    Type: Grant
    Filed: June 20, 2016
    Date of Patent: June 20, 2017
    Assignee: XEROX CORPORATION
    Inventors: Valerie M. Farrugia, Richard P. N. Veregin, Michael S. Hawkins
  • Emulsion aggregation toner for sensor and antibacterial applications
    Patent number: 9678451
    Abstract: Provided is a toner that has a plurality of toner particles. Each toner particle can include a binder resin core and a shell disposed about the binder resin core. The binder resin core can include at least one binder resin. The shell can include a plurality of metal nanoparticles. The binder resin core can be prepared by forming an aggregate of the binder resin in which metallic nanoparticles are not present.
    Type: Grant
    Filed: September 17, 2013
    Date of Patent: June 13, 2017
    Assignee: XEROX CORPORATION
    Inventor: Valerie M. Farrugia
  • 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
  • METAL NANOPARTICLE SULFONATED POLYESTER COMPOSITES AND METHODS OF MAKING THE SAME
    Publication number: 20170121488
    Abstract: A composite includes a sulfonated polyester matrix and a plurality of silver nanoparticles dispersed within the matrix. Methods to make these composites include heating a sulfonated polyester resin in an organic-free solvent adding a solution of silver (I) ion to the heated resin in water to form a mixture, adding a solution of a reducing agent to the mixture, thereby forming an emulsion of composite particles including a sulfonated polyester matrix and a plurality of silver nanoparticles disposed within the sulfonated polyester matrix. Various articles can be manufactured from such composites.
    Type: Application
    Filed: January 17, 2017
    Publication date: May 4, 2017
    Inventors: VALERIE M. FARRUGIA, ALANA DESOUZA, SANDRA J. GARDNER
  • TONER COMPOSITIONS WITH OPTIMIZED BETA-CARBOXYETHYL ACRYLATE SHELL LATEX FOR IMPROVED PARTICLE FORMATION AND MORPHOLOGY
    Publication number: 20170123336
    Abstract: Disclosed herein include toner compositions with toner particles having a core-shell type structure, where the core comprises a first resin comprising a styrene-acrylate copolymer and an amorphous polyester resin, and the shell comprises a second resin comprising beta-carboxyethyl acrylate (b-CEA) in an amount of from about 0.05 pph to about 2.5 pph by weight of the second resin.
    Type: Application
    Filed: January 17, 2017
    Publication date: May 4, 2017
    Inventors: Richard PN Veregin, Valerie M. Farrugia, SANDRA J. GARDNER
  • Anti-bacterial aqueous ink compositions comprising self-dispersed sulfonated polyester-silver nanoparticle composites
    Patent number: 9617437
    Abstract: An aqueous ink composition including water; an optional co-solvent; an optional colorant; and a composite comprising a sulfonated polyester matrix having a plurality of silver nanoparticles dispersed within the matrix. A process including incorporating the aqueous ink into an ink jet printing apparatus; ejecting droplets of ink in an imagewise pattern onto an intermediate transfer member or directly onto a final image receiving substrate; optionally, heating the image to partially or completely remove solvents; and optionally, when an intermediate transfer member is used, transferring the ink in the imagewise pattern from the intermediate transfer member to a final recording substrate.
    Type: Grant
    Filed: May 7, 2015
    Date of Patent: April 11, 2017
    Assignee: Xerox Corporation
    Inventors: Valerie M. Farrugia, Alana Rah Desouza
  • 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
  • LATEX COMPRISING COLORANT AND METHODS OF MAKING THE SAME
    Publication number: 20170073499
    Abstract: A process includes forming an emulsion comprising a monomer and a colorant, the colorant further including an anionic functional group and a lipophilic counter ion, and polymerizing the monomer to form a latex, the latex includes polymer nanoparticles having the colorant dispersed therein.
    Type: Application
    Filed: November 2, 2016
    Publication date: March 16, 2017
    Inventors: Valerie M. Farrugia, Mihaela Maria Birau
  • 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
  • Latex comprising colorant and methods of making the same
    Patent number: 9580578
    Abstract: A process includes forming an emulsion comprising a monomer and a colorant, the colorant further including an anionic functional group and a lipophilic counter ion, and polymerizing the monomer to form a latex, the latex includes polymer nanoparticles having the colorant dispersed therein.
    Type: Grant
    Filed: October 5, 2015
    Date of Patent: February 28, 2017
    Assignee: XEROX CORPORATION
    Inventors: Valerie M. Farrugia, Mihaela Maria Birau
  • 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
  • Metallo ionomer polymers
    Patent number: 9574036
    Abstract: Ionomer composite resins and core/shell nanoparticles are described. The ionomer resin contains a metal ion. The metal can be in the core, shell or both.
    Type: Grant
    Filed: May 7, 2015
    Date of Patent: February 21, 2017
    Assignee: Xerox Corporation
    Inventors: Valerie M Farrugia, Wendy Chi, Sandra J Gardner