Patents by Inventor Charles T. Berge

Charles T. Berge 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).

  • Patent number: 10351708
    Abstract: This invention pertains to self-dispersing pigment dispersions. The self-dispersing pigments are modified with a multivalent cation and an anionic polymer.
    Type: Grant
    Filed: April 27, 2016
    Date of Patent: July 16, 2019
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Michael Stephen Wolfe, Charles T. Berge, Loretta L. Tam, Cullen Kirkpatrick
  • Publication number: 20180134896
    Abstract: This invention pertains to self-dispersing pigment dispersions. The self-dispersing pigments are modified with a multivalent cation and an anionic polymer.
    Type: Application
    Filed: April 27, 2016
    Publication date: May 17, 2018
    Inventors: Michael Stephen WOLFE, Charles T. BERGE, Loretta L. TAM, Cullen KIRKPATRICK
  • Patent number: 9701854
    Abstract: The present disclosure provides novel aqueous ink-jet inks containing an aqueous vehicle, a pigment and a random polyurethane copolymer as a binder. The random polyurethane copolymer contains short hard segments without any ionic group. Also disclosed is the use of these dispersions in an ink-jet ink.
    Type: Grant
    Filed: April 30, 2013
    Date of Patent: July 11, 2017
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventor: Charles T. Berge
  • Patent number: 9475958
    Abstract: The present disclosure provides novel aqueous ink-jet inks containing an aqueous vehicle, a pigment and a branched polyurethane as a binder.
    Type: Grant
    Filed: November 1, 2012
    Date of Patent: October 25, 2016
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Charles T Berge, Xiaoqing Li, Anthony W Kluth, Waifong Liew Anton
  • Patent number: 9441124
    Abstract: The present disclosure provides novel aqueous ink-jet inks containing an aqueous vehicle, a pigment and an alternating polyurethane as a binder.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: September 13, 2016
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventor: Charles T Berge
  • Patent number: 9382435
    Abstract: Inkjet inks are described that have, as a principal component, a crosslinked polyurethane dispersoid binder additive. These inks can be used for printing on different media, and are particularly suitable for printing on textiles.
    Type: Grant
    Filed: June 12, 2008
    Date of Patent: July 5, 2016
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Charles T Berge, Xiaoqing Li, Richard Douglas Bauer
  • Publication number: 20160054491
    Abstract: In a first aspect, a liquid coating composition includes a blend of a polymer matrix resin and a photochromic dye. The polymer matrix resin includes silane groups, and at least 50% of the silane groups in the polymer matrix resin are at terminal positions. In a second aspect, a film includes a photochromic dye in a polymer matrix. The polymer matrix includes at least one allophanate or biuret group, and the at least one allophanate or biuret group includes a silane moiety. In a third aspect, an ophthalmic lens includes a film, and the film includes a photochromic dye in a polymer matrix. The polymer matrix includes at least one allophanate or biuret group, and the at least one allophanate or biuret group includes a silane moiety.
    Type: Application
    Filed: November 5, 2015
    Publication date: February 25, 2016
    Inventors: CHARLES T. BERGE, C. CHAD ROBERTS
  • Patent number: 9255207
    Abstract: Inkjet inks are described that have, as a principal component, a crosslinked polyurethane dispersoid binder additive. These inks can be used for printing on different media, and are particularly suitable for printing on paper.
    Type: Grant
    Filed: June 12, 2008
    Date of Patent: February 9, 2016
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Charles T Berge, Xiaoqing Li
  • Patent number: 9249324
    Abstract: The present disclosure provides an ink-jet ink comprising an aqueous ink vehicle and an aqueous dispersion, the aqueous dispersion comprises a colorant and a polyurethane dispersant, wherein said polyurethane dispersant is comprised of a polymer having a cross-linkable moiety, wherein the cross-linkable moiety is cross-linked with a cross-linking agent.
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: February 2, 2016
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Xiaoqing Li, Charles T. Berge
  • Patent number: 9221984
    Abstract: The present disclosure provides an aqueous dispersion containing a colorant and a polyurethane dispersant, wherein the polyurethane dispersant is a polymer having a cross-linkable moiety, wherein the cross-linkable moiety is cross-linked, with a cross-linking agent.
    Type: Grant
    Filed: July 13, 2011
    Date of Patent: December 29, 2015
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Xiaoqing Li, Charles T Berge, Christian Jackson, C Chad Roberts, Tristan Williams
  • Publication number: 20150080527
    Abstract: The present disclosure provides novel aqueous ink-jet inks containing an aqueous vehicle, a pigment and a random polyurethane copolymer as a binder. The random polyurethane copolymer contains short hard segments without any ionic group. Also disclosed is the use of these dispersions in an ink-jet ink.
    Type: Application
    Filed: April 30, 2013
    Publication date: March 19, 2015
    Inventor: Charles T. Berge
  • Patent number: 8957131
    Abstract: The present disclosure provides an ink-jet ink containing an aqueous ink vehicle, an aqueous dispersion and a polymeric binder. The aqueous dispersion contains a colorant and a polyurethane dispersant, wherein the polyurethane dispersant is made with a polymer having cross-linkable moieties that are cross-linked with a cross-linking agent.
    Type: Grant
    Filed: August 31, 2011
    Date of Patent: February 17, 2015
    Assignee: E I du Pont de Nemours and Company
    Inventors: Charles T Berge, Xiaoqing Li
  • Publication number: 20140316061
    Abstract: The present disclosure provides novel aqueous ink jet inks containing an aqueous vehicle, a pigment and a branched polyurethane as a binder.
    Type: Application
    Filed: November 1, 2012
    Publication date: October 23, 2014
    Inventors: Charles T. Berge, Xiaoqing Li, Anthony W. Kluth, Waifong Liew Anton
  • Publication number: 20140288237
    Abstract: The present disclosure provides novel aqueous pigment dispersions containing an aqueous vehicle, a pigment and a branched polyurethane as a dispersant. Also disclosed is the use of these dispersions in ink-jet inks.
    Type: Application
    Filed: November 1, 2012
    Publication date: September 25, 2014
    Inventors: Charles T. Berge, Xiaoqing Li, Anthony W. Kluth, Waifong Lew Anton
  • Publication number: 20140097392
    Abstract: In a first aspect, a liquid coating composition includes a blend of a polymer matrix resin and a photochromic dye. The polymer matrix resin includes silane groups, and at least 50% of the silane groups in the polymer matrix resin are at terminal positions. In a second aspect, a film includes a photochromic dye in a polymer matrix. The polymer matrix includes at least one allophanate or biuret group, and the at least one allophanate or biuret group includes a silane moiety. In a third aspect, an ophthalmic lens includes a film, and the film includes a photochromic dye in a polymer matrix. The polymer matrix includes at least one allophanate or biuret group, and the at least one allophanate or biuret group includes a silane moiety.
    Type: Application
    Filed: October 5, 2012
    Publication date: April 10, 2014
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: CHARLES T. BERGE, C. Chad Roberts
  • Publication number: 20130286087
    Abstract: Ink for inkjet printing is provided, comprising colorant and certain polyurethane ink additives which are derived from asymmetrically branched polyurethane additives which enhance fastness of the print towards highlighter and finger smudge without compromising jetting performance and storage stability of the ink.
    Type: Application
    Filed: October 20, 2011
    Publication date: October 31, 2013
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventor: Charles T. Berge
  • Publication number: 20130289201
    Abstract: The present disclosure provides novel aqueous pigment dispersions containing an aqueous vehicle, a pigment and a random polyurethane copolymer as a dispersant. The random polyurethane copolymer contains short hard segments without any ionic group. Also disclosed is the use of these dispersions in an ink-jet ink.
    Type: Application
    Filed: March 14, 2013
    Publication date: October 31, 2013
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventor: CHARLES T. BERGE
  • Publication number: 20130267656
    Abstract: The present disclosure provides novel aqueous ink-jet inks containing an aqueous vehicle, a pigment and an alternating polyurethane as a binder.
    Type: Application
    Filed: December 20, 2011
    Publication date: October 10, 2013
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventor: Charles T. Berge
  • Publication number: 20130253130
    Abstract: The present disclosure provides novel aqueous pigment dispersions containing an aqueous vehicle, a pigment and an alternating polyurethane as a dispersant. Also disclosed is the use of these dispersions in ink-jet ink.
    Type: Application
    Filed: December 20, 2011
    Publication date: September 26, 2013
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventor: Charles T. Berge
  • Publication number: 20130231439
    Abstract: A process for encapsulating pigment dispersions is provided where a pigment is dispersed with a polymeric dispersant in an aqueous solvent system. An acrylate monomer is added and the resultant mixture is polymerized. Optionally, the acrylate monomer may be emulsified in water with an added surfactant or polymeric dispersant and up to 20% acrylic or other vinyl monomers based on the acrylate may be added to acrylate monomer before polymerization. Such encapsulated pigment dispersions may be used in inkjet inks and are stable to heat, aging Lest conditions, and solvent challenges. Prints from these inks have better durability.
    Type: Application
    Filed: December 15, 2011
    Publication date: September 5, 2013
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Michael Stephen Wolfe, Waifong Liew Anton, Hee Hyun Lee, Charles T. Berge