Patents by Inventor Ashley Schafer Grant

Ashley Schafer Grant 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: 20200319570
    Abstract: A method for producing a chemically prepared magenta toner composition according to one example embodiment includes combining and agglomerating a first polymer emulsion with a magenta colorant dispersion containing a single azo magenta pigment and a release agent dispersion to form toner cores. A borax coupling agent is added to the toner cores. A second polymer emulsion is combined and agglomerated with the toner cores having the borax coupling agent to form toner shells around the toner cores. The aggregated toner cores and toner shells are fused to form magenta toner particles. The single azo magenta pigment in the magenta pigment dispersion does not aggregate into clusters on the outer surface of the surface core.
    Type: Application
    Filed: April 8, 2019
    Publication date: October 8, 2020
    Inventors: KASTURI RANGAN SRINIVASAN, ASHLEY SCHAFER GRANT, MICHAEL JAMES BENSING
  • Patent number: 10795275
    Abstract: A method for producing a chemically prepared magenta toner composition according to one example embodiment includes combining and agglomerating a first polymer emulsion with a magenta colorant dispersion containing a single azo magenta pigment and a release agent dispersion to form toner cores. A borax coupling agent is added to the toner cores. A second polymer emulsion is combined and agglomerated with the toner cores having the borax coupling agent to form toner shells around the toner cores. The aggregated toner cores and toner shells are fused to form magenta toner particles. The single azo magenta pigment in the magenta pigment dispersion does not aggregate into clusters on the outer surface of the surface core.
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: October 6, 2020
    Assignee: LEXMARK INTERNATIONAL, INC.
    Inventors: Kasturi Rangan Srinivasan, Ashley Schafer Grant, Michael James Bensing
  • Patent number: 10133202
    Abstract: A chemically prepared toner composition according to one example embodiment includes a core including a first polymer binder, a colorant and a release agent; a shell that is formed around the core that includes a second polymer binder; and a borax coupling agent between the core and the shell and an alkoxysilane hydrocarbon or combination of different alkoxysilane hydrocarbons that are bonded to the outer surface of the shell using a hydrolytic deposition process. This successful alkoxysilane hydrocarbon surface treatment on the outer surface of the toner particle results in attaining a desirable charge stability in hot and humid environments and ultimately improving the quality of the toner, especially by reducing toner dusting, toner fuming and ultra-fine particles generation.
    Type: Grant
    Filed: January 17, 2018
    Date of Patent: November 20, 2018
    Assignee: LEXMARK INTERNATIONAL, INC.
    Inventors: Danielle Renee Ashley, Ligia Aura Bejat, Michael James Bensing, Ashley Schafer Grant, Cory Nathan Hammond, Rick Owen Jones, John Joseph Kraseski, Jing X Sun
  • Patent number: 10133203
    Abstract: A method for producing core shell toner for electrophotography according to one embodiment, includes surface treating the outer surface of a core shell toner particle with a alkoxysilane hydrocarbon or combination of different alkoxysilane hydrocarbons using a hydrolytic deposition process after the core shell toner particle is fully formed. This method results in the bonding of the alkoxysilane hydrocarbon or combination of different alkoxysilane hydrocarbons to the outer surface of the core shell toner particle. In an alternative method, the outer surface of the toner is surface treated with the alkoxysilane hydrocarbon solution and then fused to form toner particles. The alkoxysilane hydrocarbon surface treated core shell toner also can be mixed with magnetic carrier beads to form a developer mix to be used in a dual component development electrophotographic printer.
    Type: Grant
    Filed: January 17, 2018
    Date of Patent: November 20, 2018
    Assignee: LEXMARK INTERNATIONAL, INC.
    Inventors: Danielle Renee Ashley, Ligia Aura Bejat, Michael James Bensing, Ashley Schafer Grant, Cory Nathan Hammond, Rick Owen Jones, John Joseph Kraseski, Jing X Sun
  • Publication number: 20180143556
    Abstract: A method for producing core shell toner for electrophotography according to one embodiment, includes surface treating the outer surface of a core shell toner particle with a alkoxysilane hydrocarbon or combination of different alkoxysilane hydrocarbons using a hydrolytic deposition process after the core shell toner particle is fully formed. This method results in the bonding of the alkoxysilane hydrocarbon or combination of different alkoxysilane hydrocarbons to the outer surface of the core shell toner particle. In an alternative method, the outer surface of the toner is surface treated with the alkoxysilane hydrocarbon solution and then fused to form toner particles. The alkoxysilane hydrocarbon surface treated core shell toner also can be mixed with magnetic carrier beads to form a developer mix to be used in a dual component development electrophotographic printer.
    Type: Application
    Filed: January 17, 2018
    Publication date: May 24, 2018
    Inventors: DANIELLE RENEE ASHLEY, LIGIA AURA BEJAT, MICHAEL JAMES BENSING, ASHLEY SCHAFER GRANT, CORY NATHAN HAMMOND, RICK OWEN JONES, JOHN JOSEPH KRASESKI, JING X. SUN
  • Publication number: 20180143554
    Abstract: A chemically prepared toner composition according to one example embodiment includes a core including a first polymer binder, a colorant and a release agent; a shell that is formed around the core that includes a second polymer binder; and a borax coupling agent between the core and the shell and an alkoxysilane hydrocarbon or combination of different alkoxysilane hydrocarbons that are bonded to the outer surface of the shell using a hydrolytic deposition process.
    Type: Application
    Filed: January 17, 2018
    Publication date: May 24, 2018
    Inventors: DANIELLE RENEE ASHLEY, LIGIA AURA BEJAT, MICHAEL JAMES BENSING, ASHLEY SCHAFER GRANT, CORY NATHAN HAMMOND, RICK OWEN JONES, JOHN JOSEPH KRASESKI, JING X SUN
  • Patent number: 9910377
    Abstract: A method for producing core shell toner for electrophotography according to one embodiment, includes surface treating the outer surface of a core shell toner particle with a alkoxysilane hydrocarbon or combination of different alkoxysilane hydrocarbons using a hydrolytic deposition process after the core shell toner particle is fully formed. This method results in the bonding of the alkoxysilane hydrocarbon or combination of different alkoxysilane hydrocarbons to the outer surface of the core shell toner particle. In an alternative method, the outer surface of the toner is surface treated with the alkoxysilane hydrocarbon solution and then fused to form toner particles. The alkoxysilane hydrocarbon surface treated core shell toner also can be mixed with magnetic carrier beads to form a developer mix to be used in a dual component development electrophotographic printer.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: March 6, 2018
    Assignee: LEXMARK INTERNATIONAL, INC.
    Inventors: Danielle Renee Ashley, Ligia Aura Bejat, Michael James Bensing, Ashley Schafer Grant, Cory Nathan Hammond, Rick Owen Jones, John Joseph Kraseski, Jing X Sun
  • Patent number: 9910376
    Abstract: A chemically prepared toner composition according to one example embodiment includes a core including a first polymer binder, a colorant and a release agent; a shell that is formed around the core that includes a second polymer binder; and a borax coupling agent between the core and the shell and an alkoxysilane hydrocarbon or combination of different alkoxysilane hydrocarbons that are bonded to the outer surface of the shell using a hydrolytic deposition process. This successful alkoxysilane hydrocarbon surface treatment on the outer surface of the toner particle results in attaining a desirable charge stability in hot and humid environments and ultimately improving the quality of the toner, especially by reducing toner dusting, toner fuming and ultra-fine particles generation.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: March 6, 2018
    Assignee: LEXMARK INTERNATIONAL, INC.
    Inventors: Danielle Renee Ashley, Ligia Aura Bejat, Michael James Bensing, Ashley Schafer Grant, Cory Nathan Hammond, Rick Owen Jones, John Joseph Kraseski, Jing X Sun