Patents by Inventor James A. Silver

James A. Silver 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).

  • Aqueous inks containing solvent dyes
    Patent number: 10752781
    Abstract: The present invention pertains to an aqueous ink containing mixtures of solvent dyes and disperse dyes suitable for printing on hydrophobic textile substrates.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: August 25, 2020
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventor: James A. Silver
  • AQUEOUS INKS CONTAINING SOLVENT DYES
    Publication number: 20190010332
    Abstract: The present invention pertains to an aqueous ink containing mixtures of solvent dyes and disperse dyes suitable for printing on hydrophobic textile substrates.
    Type: Application
    Filed: December 22, 2016
    Publication date: January 10, 2019
    Inventor: James A. Silver
  • Pigmented cyan inkjet ink
    Patent number: 9499706
    Abstract: The present disclosure pertains to a cyan pigmented inkjet ink and uses thereof in inkjet ink sets and inkjet printing. More particularly, the present disclosure pertains to an ink that is cyan in color and comprises a mixed pigment colorant.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: November 22, 2016
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Christian Jackson, James A. Silver
  • Method of preparing a pigment press cake and uses thereof
    Patent number: 9458321
    Abstract: A process for preparing a pigment press cake is provided in which a pigment, a grinding agent, a polyetheramine, and a vehicle are subjected to grinding, followed by removal of the grinding agent and the vehicle to form a press cake. Also disclosed are a process to disperse the press cake with a polymeric dispersant in an aqueous vehicle to form a pigment dispersion and using the dispersion to form an aqueous ink jet ink.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: October 4, 2016
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: James A. Silver, Chad C. Roberts, Christian Jackson
  • PIGMENTED CYAN INKJET INK
    Publication number: 20160002478
    Abstract: The present disclosure pertains to a cyan pigmented inkjet ink and uses thereof in inkjet ink sets and inkjet printing. More particularly, the present disclosure pertains to an ink that is cyan in color and comprises a mixed pigment colorant.
    Type: Application
    Filed: January 30, 2014
    Publication date: January 7, 2016
    Inventors: Christian Jackson, James A. Silver
  • METHOD OF PREPARING A PIGMENT PRESS CAKE AND USES THEREOF
    Publication number: 20150322267
    Abstract: A process for preparing a pigment press cake is provided in which a pigment, a grinding agent, a polyetheramine, and a vehicle are subjected to grinding, followed by removal of the grinding agent and the vehicle to form a press cake. Also disclosed are a process to disperse the press cake with a polymeric dispersant in an aqueous vehicle to form a pigment dispersion and using the dispersion to form an aqueous ink jet ink.
    Type: Application
    Filed: June 27, 2013
    Publication date: November 12, 2015
    Inventors: James A. Silver, Chad C. Roberts, Christian Jackson
  • Method of preparing cross-linked colorant dispersions
    Patent number: 9045661
    Abstract: A process for preparing a crossed-linked colorant dispersion is provided in which a partially neutralized dispersant polymer having a cross-linkable moiety is used as a dispersant for a colorant by reacting the cross-linkable moiety on the dispersant with a cross-linking agent.
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: June 2, 2015
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Patrick F. McIntyre, John C. Hornby, Christian Jackson, Xiaoqing Li, James A. Silver, Tristan Williams
  • Method of preparing aqueous pigment dispersions
    Patent number: 9023141
    Abstract: A process for preparing an aqueous pigment dispersion is provided in which a pigment, a coating agent, a grinding agent and a vehicle are subjected to grinding, followed by removal of the grinding agent and the vehicle to form a press cake, and dispersing the press cake to form a pigment dispersion. Also disclosed is an ink-jet ink containing an aqueous vehicle and the aqueous pigment dispersion thus made.
    Type: Grant
    Filed: September 26, 2012
    Date of Patent: May 5, 2015
    Assignee: E I du Pont de Nemours and Company
    Inventors: James A. Silver, C. Chad Roberts
  • METHOD OF PREPARING CROSS-LINKED COLORANT DISPERSIONS
    Publication number: 20140045975
    Abstract: A process for preparing a crossed-linked colorant dispersion is provided in which a pigment and a dispersant polymer having a cross-linkable moiety are subjected to micromedia milling followed by a purification step to remove small pigment particles before reacting the cross-linkable moiety on the dispersant polymer with a cross-linking agent. Also disclosed is the use of dispersions made from this process in ink jet inks.
    Type: Application
    Filed: April 30, 2012
    Publication date: February 13, 2014
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: James A. Silver, Christian Jackson, Anthony W. Kluth, Xiaoqing Li, Richard C. Sonntag
  • METHOD OF PREPARING CROSS-LINKED COLORANT DISPERSIONS
    Publication number: 20120232195
    Abstract: A process for preparing a crossed-linked colorant dispersion is provided in which a partially neutralized dispersant polymer having a cross-linkable moiety is used as a dispersant for a colorant by reacting the cross-linkable moiety on the dispersant with a cross-linking agent.
    Type: Application
    Filed: November 19, 2010
    Publication date: September 13, 2012
    Inventors: Patrick F. Mcintyre, John C. Hornby, Christian Jackson, Xiaoqing Li, James A. Silver, Tristan Williams
  • Black inkjet ink
    Patent number: 7806969
    Abstract: The present invention pertains to an aqueous-based black inkjet ink comprising a mixture of Direct Black 168, Acid Blue 290 and a certain magenta dye. The ink exhibits good color neutrality and gray scale.
    Type: Grant
    Filed: July 29, 2009
    Date of Patent: October 5, 2010
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Jose Esteban Valentini, Kuo Hsiung Kung, James A. Silver, William Thomas Hall
  • BLACK INKJET INK
    Publication number: 20100024682
    Abstract: The present invention pertains to an aqueous-based black inkjet ink comprising a mixture of Direct Black 168, Acid Blue 290 and a certain magenta dye. The ink exhibits good color neutrality and gray scale.
    Type: Application
    Filed: July 29, 2009
    Publication date: February 4, 2010
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: JOSE ESTEBAN VALENTINI, Kuo Hsiung Kung, James A. Silver, William Thomas Hall