Patents by Inventor Guerino G. Sacripante

Guerino G. Sacripante 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).

  • Optimized latex particle size for improved hot offset temperature for sustainable toners
    Patent number: 9372422
    Abstract: The disclosure provides sustainable toner particles of from about 180 nm to about 250 nm in a sustainable toner composition having a hot offset temperature of from about 190° C. to about 220° C.
    Type: Grant
    Filed: January 22, 2014
    Date of Patent: June 21, 2016
    Assignee: XEROX CORPORATION
    Inventors: Ke Zhou, Guerino G. Sacripante, Richard Philip Nelson Veregin, Edward Graham Zwartz, Abdisamed Sheik Qasim, Rashid Mahmood, Mark R. Elliott, Cuong Vong, Melanie Lynn Davis
  • Toner comprised of a sustainable polyester resin
    Patent number: 9360782
    Abstract: The disclosure describes a one reactor process for making a bio-based polyester resin and the polyester polymer thereof The bio-based polymer is the product of a condensation reaction of (a) a rosin diol, (b) neopentyl glycol, (c) succinic acid, (d) an aromatic dicarboxylic acid and (e) dipropylene glycol or tripropvlene glycol, wherein the rosin diol is a reaction product between a rosin acid and a cyclic alkylene glycol and comprises only one rosin moiety. The resultant polyester resin retains thermal properties as compared to a similar resin but made using previous multi-step processes conducted in separate vessels.
    Type: Grant
    Filed: October 22, 2013
    Date of Patent: June 7, 2016
    Assignee: Xerox Corporation
    Inventors: Ke Zhou, Guerino G Sacripante, Edward G Zwartz, Cuong Vong, Richard PN Veregin
  • Bio-based Acrylate and (Meth)acrylate Resins
    Publication number: 20160139526
    Abstract: (Meth)acrylate resins of at least one bio-based (meth)acrylate monomer, where the monomer includes a rosin or isosorbide moiety obtained from natural sources, can be used in toner, carrier coating or both.
    Type: Application
    Filed: November 14, 2014
    Publication date: May 19, 2016
    Inventors: Richard P. N. Veregin, Guerino G. Sacripante
  • 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
  • SUSTAINABLE MATERIALS FOR THREE-DIMENSIONAL PRINTING
    Publication number: 20160130451
    Abstract: A sustainable material suitable for three-dimensional printing is disclosed. The sustainable material comprises a resin derived from a bio-based diacid monomer and a bio-based glycol monomer. The resulting sustainable material provides a much more robust 3-D printing material with different properties than conventional materials.
    Type: Application
    Filed: November 10, 2014
    Publication date: May 12, 2016
    Inventors: Guerino G. Sacripante, Ke Zhou
  • Polyester processes
    Patent number: 9328260
    Abstract: Disclosed are processes for the preparation of rosin diols accomplished by the reaction of a rosin acid with a glycerine carbonate in the presence of a catalyst, and subsequently where the rosin diol can be reacted with a diacid to generate an amorphous polyester resin.
    Type: Grant
    Filed: January 15, 2014
    Date of Patent: May 3, 2016
    Assignee: Xerox Corporation
    Inventors: Guerino G. Sacripante, Ke Zhou, Rosa M. Duque, Sonja Hadzidedic, Biritawit Asfaw
  • Simplified process for sustainable toner resin
    Patent number: 9329510
    Abstract: The disclosure describes a one reaction process for making a bio-based polyester resin. The resultant polyester resin retains thermal properties as compared to a similar resin but made using previous multi-step processes conducted in separate vessels.
    Type: Grant
    Filed: August 22, 2013
    Date of Patent: May 3, 2016
    Assignee: Xerox Corporation
    Inventors: Guerino G Sacripante, Ke Zhou, Edward G Zwartz, Michael S Hawkins, Veronique Laberge, Alan EJ Toth, Rashid Mahmood, Mark R Elliott, John Abate
  • Sustainable polyester resin of defined acid value
    Patent number: 9323167
    Abstract: The disclosure describes a process for making a polyester resin of defined acid value using a temperature-sensitive reaction and dipropylene glycol as a reagent.
    Type: Grant
    Filed: October 22, 2013
    Date of Patent: April 26, 2016
    Assignee: Xerox Corporation
    Inventors: Guerino G Sacripante, Ke Zhou, Mark R Elliott, Rashid Mahmood, John Abate
  • Catalyst for polyester polycondensation reaction
    Patent number: 9309355
    Abstract: The present disclosure provides a colorless polyester resin produced using phosphinic acid, optionally in combination with a titanium-based catalyst.
    Type: Grant
    Filed: February 20, 2015
    Date of Patent: April 12, 2016
    Assignee: Xerox Corporation
    Inventors: Guerino G Sacripante, David R Kurceba
  • Curable Toner Compositions and Processes
    Publication number: 20160062255
    Abstract: An emulsion aggregation toner composition includes toner particles including: an unsaturated polymeric resin, such as amorphous resins, crystalline resins, and combinations thereof; an optional colorant; an optional wax; an optional coagulant; and a photoinitiator. By optimizing the particle size of the emulsion, the aggregant concentration utilized in the emulsion aggregation process, and the solids content of the emulsion, toners may be produced capable of generating images with non-contact fusing that have high gloss.
    Type: Application
    Filed: November 5, 2015
    Publication date: March 3, 2016
    Inventors: Edward G Zwartz, Guerino G Sacripante
  • Toner processes
    Patent number: 9195155
    Abstract: A method for preparing toner particles is disclosed. In embodiments, a suitable method includes aggregating a mixture comprising at least one resin, an optional pigment and an optional wax to form aggregated particles, freezing aggregation of particles by adjusting the pH of the aggregated particles to a freezing aggregation pH; coalescing the aggregated particles to form toner particles at a first pH that is higher than the freezing aggregation pH; and recovering the toner particles.
    Type: Grant
    Filed: October 7, 2013
    Date of Patent: November 24, 2015
    Assignee: XEROX CORPORATION
    Inventors: Ke Zhou, Guerino G. Sacripante, Yulin Wang, Abdisamed Sheik-Qasim, Rashid Mahmood, Rosa Duque
  • Biophenols for polyester toner resins
    Patent number: 9164409
    Abstract: The present disclosure provides a polyester toner resin comprising a natural phenol used in manufacturing a toner for imaging devices.
    Type: Grant
    Filed: April 30, 2013
    Date of Patent: October 20, 2015
    Assignee: Xerox Corporation
    Inventors: Guerino G Sacripante, Ke Zhou, Biritawit Asfaw, Sonja Hadzidedic, Rosa Duque
  • 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
  • Polyester resins comprising gallic acid and derivatives thereof
    Patent number: 9122180
    Abstract: The present disclosure provides a polyester toner resin comprising gallic acid for use in manufacturing an emulsion aggregation (EA) toner for imaging devices.
    Type: Grant
    Filed: April 30, 2013
    Date of Patent: September 1, 2015
    Assignee: Xerox Corporation
    Inventors: Ke Zhou, Guerino G Sacripante, Marko Saban
  • OPTIMIZED LATEX PARTICLE SIZE FOR IMPROVED HOT OFFSET TEMPERATURE FOR SUSTAINABLE TONERS
    Publication number: 20150205219
    Abstract: The disclosure provides sustainable toner particles of from about 180 nm to about 250 nm in a sustainable toner composition having a hot offset temperature of from about 190° C. to about 220° C.
    Type: Application
    Filed: January 22, 2014
    Publication date: July 23, 2015
    Applicant: Xerox Corporation
    Inventors: Ke Zhou, Guerino G. Sacripante, Richard Philip Nelson Veregin, Edward Graham Zwartz, Abdisamed Sheik Qasim, Rashid Mahmood, Mark R. Elliott, Cuong Vong, Melanie Lynn Davis
  • Polyester EA toner comprising furan
    Patent number: 9068041
    Abstract: Methods of making a bio-based polyester resin by polycondensing a polyol with a polyacidic furan are described. The polyol can be a rosin diol obtained by reacting a rosin acid and a glycerol carbonate. The polyacidic furan is obtained from a bio-based product. The resin may be used in manufacturing toner for imaging devices.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: June 30, 2015
    Assignee: Xerox Corporation
    Inventors: Valerie M Farrugia, Guerino G Sacripante, Ke Zhou, Sonja Hadzidedic
  • 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
  • CURABLE LATEX INKS COMPRISING AN UNSATURATED POLYESTER FOR INDIRECT PRINTING
    Publication number: 20150116416
    Abstract: The present disclosure provides an ink comprising a latex comprising a photoinitiator and at least one unsaturated polyester, which is suitable for use in an indirect printing method.
    Type: Application
    Filed: October 30, 2013
    Publication date: April 30, 2015
    Applicant: Xerox Corporation
    Inventors: Jennifer L. Belelie, Guerino G. Sacripante, Michelle N. Chrétien, Barkev Keoshkerian, Naveen Chopra
  • 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