Patents by Inventor Richard P. N. Veregin

Richard P. N. Veregin 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).

  • Publication number: 20210164960
    Abstract: A method for assessing polymeric additive content A in a polymeric particle mixture may comprise determining a concentration B of a metal cation in a polymeric particle mixture comprising parent polymeric particles and polymeric additive particles, wherein the metal cation is selected from alkali earth metals and alkali metals, other than sodium (Na), and the metal cation is capable of forming a water-soluble base; determining a concentration C of the metal cation in the parent polymeric particles; determining a concentration D of the metal cation in the polymeric additive particles; and calculating a polymeric additive content A using formula A=(B?C)/D.
    Type: Application
    Filed: December 3, 2019
    Publication date: June 3, 2021
    Inventors: Richard P. N. Veregin, Kimberly D. Nosella, Rosa M. Duque, Melanie Lynn Davis, David R. Kurceba, Cuong Vong
  • Patent number: 11001662
    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: Grant
    Filed: March 29, 2019
    Date of Patent: May 11, 2021
    Assignee: Xerox Corporation
    Inventors: Richard P. N. Veregin, Nan-Xing Hu, Karen A. Moffat, Michael Steven Hawkins
  • Patent number: 10935901
    Abstract: Described herein is a metallic toner. The metallic toner includes flake shape toner particles having a binder resin, zinc stearate, silica having a particle size of from 7 nm to less than 12 nm in an amount of about 0.1 weight percent to 1.0 about weight percent of the flake shape toner particle and tabular shape metallic pigments. The flake shape toner particles have an average major axis length of from 6 ?m to 20 ?m, an average thickness of from 1 ?m to 4 ?m and an average circularity of from 0.5 to 0.97. The tabular shape metallic pigments have an average major axis length of from 1 ?m to 14 ?m an average thickness of from 0.01 ?m to 0.5 ?m.
    Type: Grant
    Filed: November 25, 2019
    Date of Patent: March 2, 2021
    Assignee: XEROX CORPORATION
    Inventors: Yu Qi, Shigeng Li, Richard P. N. Veregin
  • Publication number: 20200307027
    Abstract: A process including providing a three-dimensional printing powder dispersion comprising a three-dimensional printing powder, an optional dispersing agent, and water; providing an emulsion of an organic polymeric additive; combining the three-dimensional printing powder dispersion and the emulsion of organic polymeric additive to form a mixture comprising the three-dimensional printing powder dispersion and the emulsion of organic polymeric additive; and drying the mixture of the three-dimensional printing powder dispersion and the emulsion of organic polymeric additive.
    Type: Application
    Filed: March 29, 2019
    Publication date: October 1, 2020
    Inventors: Richard P. N. Veregin, Karen A. Moffat, Michael Steven Hawkins, Shivanthi Easwari Sriskandha
  • Publication number: 20200310274
    Abstract: A polymeric composition including a copolymer comprising a first monomer having a high carbon to oxygen ratio of from about 3 to about 8; a second monomer comprising two or more vinyl groups, wherein the second monomer is present in the copolymer in an amount of from greater than about 8 percent by weight to about 40 percent by weight, based on the weight of the copolymer; and optionally, a third monomer comprising an amine, wherein the third monomer is present in an amount of from about 0.1 percent by weight to about 1.5 percent by weight, based on the weight of the copolymer; and a surfactant, wherein the surfactant has a minimum surface tension at critical micelle concentration of less than about 30 mN/m. A toner including the copolymer as a toner surface additive. An emulsion aggregation toner process including the copolymer as a toner surface additive.
    Type: Application
    Filed: June 4, 2020
    Publication date: October 1, 2020
    Inventors: Richard P. N. Veregin, Shivanthi Easwari Sriskandha, David R. Kurceba, Scott Edward Silver, Melanie Lynn Davis, Cuong Vong
  • Publication number: 20200310268
    Abstract: A toner including toner particles comprising at least one resin, in combination with an optional colorant, and an optional wax; and a copolymer toner additive on at least a portion of an external surface of the toner particles, the copolymer toner additive comprising a first monomer having a high carbon to oxygen ratio of from about 3 to about 8; and a second monomer comprising two or more vinyl groups, wherein the second monomer is present in the copolymer in an amount of from greater than about 8 percent by weight to about 60 percent by weight, based on the weight of the copolymer; wherein the copolymer toner additive has a volume average particle diameter of from about 20 nanometers to less than about 70 nanometers. An emulsion aggregation toner process including the copolymer as a toner surface additive.
    Type: Application
    Filed: March 29, 2019
    Publication date: October 1, 2020
    Inventors: Richard P. N. Veregin, Shivanthi Easwari Sriskandha, David R. Kurceba, Melanie Lynn Davis, Cuong Vong
  • Publication number: 20200306830
    Abstract: A composition including a three-dimensional metal printing powder; an organic polymeric additive on at least a portion of an external surface of the three-dimensional metal printing powder; and optionally, an inorganic additive on at least a portion of an external surface of the three-dimensional metal printing powder. A process for preparing a three-dimensional metal printing powder having an organic polymeric additive disposed thereon. A process for employing the three-dimensional metal printing powder including selective laser sintering.
    Type: Application
    Filed: March 29, 2019
    Publication date: October 1, 2020
    Inventors: Richard P. N. Veregin, Karen A. Moffat
  • Publication number: 20200308328
    Abstract: A polymeric composition including a copolymer comprising a first monomer having a high carbon to oxygen ratio of from about 3 to about 8; a second monomer comprising two or more vinyl groups, wherein the second monomer is present in the copolymer in an amount of from greater than about 8 percent by weight to about 60 percent by weight, based on the weight of the copolymer; and, optionally, a third monomer comprising an amine, wherein the third monomer, if present, is present in an amount of from about 0.5 percent by weight to about 5 percent by weight, based on the weight of the copolymer. A toner including the copolymer as a toner surface additive. An emulsion aggregation toner process including the copolymer as a toner surface additive.
    Type: Application
    Filed: March 29, 2019
    Publication date: October 1, 2020
    Inventors: Richard P. N. Veregin, Padam K. Angra, Maria McCall Barden, Majid Kamel, Cuong Vong, Randy P. Tin, Mark A. Jackson, John J. Ianni
  • 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
  • Publication number: 20200301296
    Abstract: Described herein is a method for manufacturing a low gloss toner. The method includes mixing a resin, a colorant and an optional wax in water to form an emulsion. The emulsion is heated in the presence of a polyion coagulant to form a plurality of aggregated particles, wherein the heating is to a temperature of below the glass transition temperature of the resin. Trisodium citrate dihydrate is added to the heated emulsion in amount of from 0.4 weight percent to about 1.0 percent by weight based on of a total weight of reagents while stirring, wherein the trisodium citrate dihydrate. The aggregated particles are heated to a temperature above the glass transition temperature of the resin to form toner particles have a volume average particle diameter of from 4.3 microns to 4.9 microns.
    Type: Application
    Filed: March 18, 2019
    Publication date: September 24, 2020
    Inventors: Shivanthi Easwari Sriskandha, Richard P N Veregin, Edward G. Zwartz, Michael S. Hawkins
  • Patent number: 10725394
    Abstract: A polymeric composition including a copolymer comprising a first monomer having a high carbon to oxygen ratio of from about 3 to about 8; a second monomer comprising two or more vinyl groups, wherein the second monomer is present in the copolymer in an amount of from greater than about 8 percent by weight to about 40 percent by weight, based on the weight of the copolymer; and optionally, a third monomer comprising an amine, wherein the third monomer is present in an amount of from about 0.1 percent by weight to about 1.5 percent by weight, based on the weight of the copolymer; and a surfactant, wherein the surfactant has a minimum surface tension at critical micelle concentration of less than about 30 mN/m. A toner including the copolymer as a toner surface additive. An emulsion aggregation toner process including the copolymer as a toner surface additive.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: July 28, 2020
    Assignee: Xerox Corporation
    Inventors: Richard P. N. Veregin, Shivanthi Easwari Sriskandha, David R. Kurceba, Scott Edward Silver, Melanie Lynn Davis, Cuong Vong
  • Publication number: 20200225598
    Abstract: A toner process including a) mixing reagents comprising at least one amorphous resin, an optional crystalline resin, an optional styrene, acrylate or styrene/acrylate, an optional wax, and an optional colorant to form an emulsion comprising a resin particle; b) adding at least one aggregating agent and aggregating said resin particle to form a nascent toner particle; c) optionally, adding one or more resins to form a shell on said nascent toner particle to yield a core-shell particle; d) adding a first chelating agent and a second chelating agent; wherein said first chelating agent and said second chelating agent are different; e) freezing particle growth to form an aggregated toner particle; f) coalescing said aggregated toner particle to form a toner particle; and g) optionally, collecting said toner particle.
    Type: Application
    Filed: January 14, 2019
    Publication date: July 16, 2020
    Inventors: Shivanthi Easwari Sriskandha, Richard P. N. Veregin, Guerino G. Sacripante, Edward G. Zwartz, Michael Steven Hawkins
  • Patent number: 10662356
    Abstract: Methods of using a toner as a printable adhesive are provided. In embodiments, a method of adhering substrates is provided which comprises disposing a cold pressure fix toner comprising a phase change material on a first substrate via xerography to form an unfused layer of the cold pressure fix toner on the first substrate; placing a second substrate on the unfused layer of the cold pressure fix toner; and subjecting the cold pressure fix toner to a pressure to form a bonded article comprising the first substrate, an adhesive layer formed from the cold pressure fix toner, and the second substrate. Methods of applying an adhesive to a substrate and bonded articles are also provided.
    Type: Grant
    Filed: January 18, 2018
    Date of Patent: May 26, 2020
    Assignee: Xerox Corporation
    Inventors: Nan-Xing Hu, Yulin Wang, Guerino Sacripante, Edward G. Zwartz, Richard P. N. Veregin
  • Patent number: 10642179
    Abstract: The present disclosure relates to toner compositions containing an IR-taggant, and method of making thereof. The disclosure also relates to method for confirming authenticity of an item.
    Type: Grant
    Filed: January 24, 2018
    Date of Patent: May 5, 2020
    Assignee: XEROX CORPORATION
    Inventors: Yu Qi, Eugene F. Young, Shigeng Li, Chieh-Min Cheng, Richard P. N. Veregin, Laura Jenson
  • Publication number: 20190227452
    Abstract: The present disclosure relates to toner compositions containing an IR-taggant, and method of making thereof. The disclosure also relates to method for confirming authenticity of an item.
    Type: Application
    Filed: January 24, 2018
    Publication date: July 25, 2019
    Inventors: Yu Qi, Eugene F. Young, Shigeng Li, Chieh-Min Cheng, Richard P.N. Veregin, Laura Jenson
  • Patent number: 10358557
    Abstract: The present disclosure provides polymeric composition for use with toner particles. The polymeric composition of the present disclosure includes a silicone-polyether copolymer and a polymeric additive, wherein the silicone-polyether copolymer comprising a polysiloxane unit and a polyether unit, and the polymeric additive comprising a copolymer possessing at least one monomer having a high carbon to oxygen ratio, a monomer having more than one vinyl group, and at least one amine-functional monomer. The present disclosure also provides method of making thereof.
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: July 23, 2019
    Assignee: XEROX CORPORATION
    Inventors: Richard P. N. Veregin, Nan-Xing Hu, Hajir Mokhtari, Majid Kamel, Wafa F. Bashir, Cuong Vong
  • Publication number: 20190218437
    Abstract: Methods of using a toner as a printable adhesive are provided. In embodiments, a method of adhering substrates is provided which comprises disposing a cold pressure fix toner comprising a phase change material on a first substrate via xerography to form an unfused layer of the cold pressure fix toner on the first substrate; placing a second substrate on the unfused layer of the cold pressure fix toner; and subjecting the cold pressure fix toner to a pressure to form a bonded article comprising the first substrate, an adhesive layer formed from the cold pressure fix toner, and the second substrate. Methods of applying an adhesive to a substrate and bonded articles are also provided.
    Type: Application
    Filed: January 18, 2018
    Publication date: July 18, 2019
    Inventors: Nan-Xing Hu, Yulin Wang, Guerino Sacripante, Edward G. Zwartz, Richard P. N. Veregin
  • Patent number: 10268130
    Abstract: The instant disclosure describes methacrylate coated carrier resins with hydrophobic substituents for charge control and improved RH sensitivity.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: April 23, 2019
    Assignee: XEROX CORPORATION
    Inventors: Richard P N Veregin, Qingbin Li, Andriy Kovalenko, Sergey Gusarov, Daryl W. Vanbesien, Michael S. Hawkins
  • Patent number: 10248038
    Abstract: Graphene-containing toners are provided. In an embodiment, a graphene-containing toner comprises a core comprising graphene, a crystalline polyester resin, and an amorphous polyester resin, the toner further comprising a shell over the core. Methods of making and using the toners are also provided.
    Type: Grant
    Filed: January 23, 2018
    Date of Patent: April 2, 2019
    Assignee: XEROX CORPORATION
    Inventors: Yu Qi, Shigeng Li, Chieh-Min Cheng, Richard P. N. Veregin, Edward G. Zwartz
  • Patent number: 10126671
    Abstract: The present disclosure provides processes for producing images with toner particles. In embodiments, toner particles of a certain diameter in size are applied to a substrate as an incomplete monolayer, and then fused to form an image that is a complete monolayer and possesses a thickness less than the diameter of the particles utilized to form the image.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: November 13, 2018
    Assignee: XEROX CORPORATION
    Inventors: Richard P. N. Veregin, Eric Rotberg, Edward Graham Zwartz, Suxia Yang, Daryl W. Vanbesien, Cuong Vong, Karen Ann Moffat