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).

  • Anti-bacterial aqueous ink compositions comprising metal ion composite ionomer resins
    Patent number: 10570290
    Abstract: An aqueous ink composition including water; an optional co-solvent; an optional colorant; and a composite nanoparticle comprising a core and a shell; wherein the core comprises a styrene/acrylate polymer core resin, optionally comprising a metal; and wherein the shell comprises a metal. An aqueous ink composition including water; an optional co-solvent; an optional colorant; and an ionic polymer-metal composite; wherein the ionic-polymer metal composite nanoparticle acts as a reservoir for the delivery of metal ions for anti-bacterial effect, antifungal effect, antiviral biocide effect, or a combination thereof.
    Type: Grant
    Filed: October 19, 2017
    Date of Patent: February 25, 2020
    Assignee: Xerox Corporation
    Inventors: Valerie M. Farrugia, Wendy Chi
  • CURABLE UNSATURATED CRYSTALLINE POLYESTER POWDER AND METHODS OF MAKING THE SAME
    Publication number: 20190352521
    Abstract: A process for producing unsaturated polyester microparticles comprising: melt-mixing an unsaturated polyester and an oil in an extruder; washing the microparticles with an organic solvent to reduce the amount of oil; and removing the organic solvent to form the microparticles.
    Type: Application
    Filed: May 17, 2018
    Publication date: November 21, 2019
    Inventors: Valerie M. Farrugia, Michael S. Hawkins, Guerino G. Sacripante, Edward G. Zwartz
  • COMPOSITIONS COMPRISING UNSATURATED CRYSTALLINE POLYESTER FOR 3D PRINTING
    Publication number: 20190352455
    Abstract: A composition for use in 3D printing includes an unsaturated polyester resin including an ethylenically unsaturated monomer, a first diol monomer and a second diol monomer.
    Type: Application
    Filed: May 17, 2018
    Publication date: November 21, 2019
    Inventors: Shivanthi E. Sriskandha, Valerie M. Farrugia, Guerino G. Sacripante, Edward G. Zwartz
  • Emulsion aggregation toner for sensor and antibacterial applications
    Patent number: 10444650
    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: May 2, 2017
    Date of Patent: October 15, 2019
    Assignee: XEROX CORPORATION
    Inventor: Valerie M. Farrugia
  • Anti-bacterial metallo ionomer polymer nanocomposite filaments and methods of making the same
    Patent number: 10405540
    Abstract: A composite filament includes a core particle comprising a styrene/acrylate polymer resin, and a shell comprising a styrene/acrylate ionomer resin, wherein the styrene/acrylate ionomer resin comprises a metal ion acrylate monomer, and methods of making thereof. Various articles can be manufactured from such composite filaments.
    Type: Grant
    Filed: July 6, 2016
    Date of Patent: September 10, 2019
    Assignee: XEROX CORPORATION
    Inventors: Valerie M. Farrugia, Barkev Keoshkerian, Michelle N. Chretien
  • Anti-Bacterial Aqueous Ink Compositions Comprising Water Soluble Sodio-Sulfonated Polyester
    Publication number: 20190233665
    Abstract: A composite including a sodium sulfonated polyester matrix; wherein the sodium sulfonated polyester has a degree of sulfonation of at least about 3.5 mol percent; and a plurality of silver nanoparticles dispersed within the matrix. An aqueous ink composition including water; an optional co-solvent; an optional colorant; and a composite comprising a sodium sulfonated polyester matrix; wherein the sodium sulfonated polyester has a degree of sulfonation of at least about 3.5 mol percent; and a plurality of silver nanoparticles dispersed within the matrix. A method including heating a sodium sulfonated polyester resin in water, wherein the sodium sulfonated polyester has a degree of sulfonation of at least about 3.
    Type: Application
    Filed: February 1, 2018
    Publication date: August 1, 2019
    Inventors: Naveen Chopra, Guerino G. Sacripante, Valerie M. Farrugia
  • Core-shell metal nanoparticle composite
    Patent number: 10358563
    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: May 4, 2017
    Date of Patent: July 23, 2019
    Assignee: XEROX CORPORATION
    Inventors: Valerie M. Farrugia, Alana Desouza, Sandra J. Gardner
  • COMPOSITIONS AND USE OF COMPOSITIONS IN PRINTING PROCESSES
    Publication number: 20190218399
    Abstract: An aqueous sacrificial coating composition for an image transfer member in an aqueous ink imaging system is provided. The sacrificial coating composition may include at least one polymer, at least one selected from (i) at least one chain extender, or (ii) a reactive elastomeric latex, wherein the at least one chain extender comprises a species capable of linking linear chains or chain segments of the reactive elastomeric latex, at least one hygroscopic plasticizer, and at least one surfactant.
    Type: Application
    Filed: March 20, 2019
    Publication date: July 18, 2019
    Applicant: XEROX CORPORATION
    Inventors: Guiqin Song, Marcel P. Breton, Valerie M. Farrugia, James D. Mayo
  • Method of selective laser sintering
    Patent number: 10315409
    Abstract: A method of selective laser sintering is disclosed. The method comprises providing composite particles made by emulsion aggregation, the composite particles comprising at least one thermoplastic polymer and at least one carbon particle material. The composite particles are exposed to a laser to fuse the composite particles.
    Type: Grant
    Filed: July 20, 2016
    Date of Patent: June 11, 2019
    Assignee: XEROX CORPORATION
    Inventors: Barkev Keoshkerian, Jordan H. Wosnick, Rachel Prestayko, Kimberly D. Nosella, Valerie M. Farrugia, Edward G. Zwartz
  • Compositions and use of compositions in printing processes
    Patent number: 10280313
    Abstract: An aqueous sacrificial coating composition for an image transfer member in an aqueous ink imaging system is provided. The sacrificial coating composition may include at least one polymer, at least one selected from (i) at least one chain extender, or (ii) a reactive elastomeric latex, wherein the at least one chain extender comprises a species capable of linking linear chains or chain segments of the reactive elastomeric latex, at least one hygroscopic plasticizer, and at least one surfactant.
    Type: Grant
    Filed: July 20, 2016
    Date of Patent: May 7, 2019
    Assignee: XEROX CORPORATION
    Inventors: Guiqin Song, Marcel P. Breton, Valerie M. Farrugia, James D. Mayo
  • Antimicrobial sulfonated polyester resin
    Patent number: 10216111
    Abstract: Toner particles contain a core-shell resin particle containing at least one (sulfo) polyester containing a metal on nanoparticle, and a shell containing a metal ion nanoparticle.
    Type: Grant
    Filed: May 7, 2015
    Date of Patent: February 26, 2019
    Assignee: Xerox Corporation
    Inventors: Valerie M Farrugia, Alana R Desouza, Sandra J Gardner, Wendy Chi
  • Latex comprising colorant and methods of making the same
    Patent number: 10208186
    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: November 2, 2016
    Date of Patent: February 19, 2019
    Assignee: XEROX CORPORATION
    Inventors: Valerie M. Farrugia, Mihaela Maria Birau
  • Carmine colorants
    Patent number: 10184024
    Abstract: The present disclosure provides a modified carmine which can comprise polymers, such as, polyesters, or conjugating molecules, such as, polycarboxylic acids.
    Type: Grant
    Filed: June 18, 2013
    Date of Patent: January 22, 2019
    Assignee: Xerox Corporation
    Inventors: Valerie M Farrugia, Maria Birau, Gabriel Iftime
  • SULFONATED POLYESTER-METAL NANOPARTICLE COMPOSITE TONER FOR COLORIMETRIC SENSING APPLICATIONS
    Publication number: 20190018008
    Abstract: A toner composite material includes toner particles that include a sulfonated polyester and a wax and metal nanoparticles disposed on the surface of the toner particles. A method includes providing such toner composite materials, fusing the material to a substrate and covalently linking a ligand to the surface of the silver nanoparticles via a thiol, carboxylate, or amine functional group. Detection strips include a substrate and such toner composite materials fused on the substrate.
    Type: Application
    Filed: September 5, 2018
    Publication date: January 17, 2019
    Inventors: Valerie M. Farrugia, Wendy Chi, Sandra J. Gardner
  • Sulfonated polyester-metal nanoparticle composite toner for colorimetric sensing applications
    Patent number: 10132803
    Abstract: A toner composite material includes toner particles that include a sulfonated polyester and a wax and metal nanoparticles disposed on the surface of the toner particles. A method includes providing such toner composite materials, fusing the material to a substrate and covalently linking a ligand to the surface of the silver nanoparticles via a thiol, carboxylate, or amine functional group. Detection strips include a substrate and such toner composite materials fused on the substrate.
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: November 20, 2018
    Assignee: XEROX CORPORATION
    Inventors: Valerie M. Farrugia, Wendy Chi, Sandra J. Gardner
  • Anti-bacterial metallo ionomer polymer nanocomposite powders and methods of making the same
    Patent number: 10113059
    Abstract: A composite powder includes a core particle comprising a styrene/acrylate polymer resin, and a shell comprising a styrene/acrylate ionomer resin, wherein the styrene/acrylate ionomer resin comprises a metal ion acrylate monomer, and methods of making thereof. Various articles can be manufactured from such composite powders.
    Type: Grant
    Filed: July 6, 2016
    Date of Patent: October 30, 2018
    Assignee: XEROX CORPORATION
    Inventors: Valerie M. Farrugia, Barkev Keoshkerian, Michelle N. Chretien
  • Hybrid toner compositions
    Patent number: 10095143
    Abstract: A hybrid toner composition including a first wax; a second wax that is different from the first wax; wherein the first wax comprises a paraffin wax having a peak melting point of from about 60 to about 80° C.; wherein the second wax comprises an ester wax having a peak melting point of from about 60 to about 80° C.; a first resin comprising an amorphous polyester resin and at second resin comprising at least one of a styrene, an acrylate, or a combination thereof; and an optional colorant.
    Type: Grant
    Filed: June 5, 2017
    Date of Patent: October 9, 2018
    Assignee: Xerox Corporation
    Inventors: Richard P. N. Veregin, Valerie M. Farrugia, Edward G. Zwartz
  • Toner compositions with optimized beta-carboxyethyl acrylate shell latex for improved particle formation and morphology
    Patent number: 10018931
    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: Grant
    Filed: January 17, 2017
    Date of Patent: July 10, 2018
    Assignee: XEROX CORPORATION
    Inventors: Richard P N Veregin, Valerie M. Farrugia, Sandra J. Gardner
  • Styrene acrylate hybrid toner process utilizing a low VOC (volatile organic compound) coalescent agent in toner shells
    Patent number: 10007205
    Abstract: Disclosed herein include processes of preparing hybrid toner compositions with toner particles having a core-shell type structure, where the shell contains a non-volatile coalescent agent. More particularly, embodiments relate to processes of preparing styrene acrylate hybrid toner compositions.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: June 26, 2018
    Assignee: XEROX CORPORATION
    Inventors: Richard P N Veregin, Valerie M. Farrugia, Nan-Xing Hu, Sandra J. Gardner
  • Antimicrobial toner
    Patent number: 10007200
    Abstract: Core-shell toner particles with antimicrobial properties are described, the toner particles contain a metal ion nanoparticle in the shell.
    Type: Grant
    Filed: May 7, 2015
    Date of Patent: June 26, 2018
    Assignee: Xerox Corporation
    Inventors: Valerie M Farrugia, Alana R Desouza, Sandra J Gardner, Kimberly D Nosella