Patents by Inventor Karen Moffat

Karen Moffat 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: 11952448
    Abstract: Compositions are provided which may comprise a plurality of organic additive particles, the particles comprising a polymerization product of reactants comprising a dioxane/dioxolane monomer and a vinyl co-monomer, wherein the dioxane/dioxolane monomer is an ester of (meth)acrylic acid with an alcohol comprising a dioxane moiety, an ester of (meth)acrylic acid with an alcohol comprising a dioxolane moiety, or both. Toner and additive manufacturing compositions comprising the organic additive particles are also provided.
    Type: Grant
    Filed: July 27, 2021
    Date of Patent: April 9, 2024
    Assignee: Xerox Corporation
    Inventors: Karen A. Moffat, Sepehr M. Tehrani, Kimberly D. Nosella, Raysa Rodriguez Diaz, Richard P. N. Veregin, Cuong Vong
  • Patent number: 11859052
    Abstract: A nonlimiting example method for synthesizing a pigment-pendent polyamide (PP-polyamide) may comprise: functionalizing metal oxide particles bound to a pigment particle with a compound having an epoxy to produce a surface treated pigment having a pendent epoxy; and reacting the pendent epoxy with a polyamide to yield the PP-polyamide. Another nonlimiting example method for synthesizing a PP-polyamide may comprise: functionalizing metal oxide particles bound to a pigment particle with a silica particle having a carboxylic acid surface treatment to produce a surface treated pigment having a pendent carboxylic acid; converting the pendent carboxylic acid to a pendent acid chloride; and reacting the pendent acid chloride with a polyamide to yield the PP-polyamide.
    Type: Grant
    Filed: December 28, 2022
    Date of Patent: January 2, 2024
    Assignee: Xerox Corporation
    Inventors: Valerie M. Farrugia, Karen A. Moffat
  • Patent number: 11834580
    Abstract: Ink compositions are provided which may comprise water; resin particles; a colorant; and optionally, a wax, wherein the resin particles comprise a polymerization product of reactants comprising a dioxane/dioxalane monomer and an additional monomer, wherein the dioxane/dioxalane monomer is an ester of (meth)acrylic acid with an alcohol comprising a dioxane moiety, an ester of (meth)acrylic acid with an alcohol comprising a dioxalane moiety, or both.
    Type: Grant
    Filed: July 27, 2021
    Date of Patent: December 5, 2023
    Assignee: Xerox Corporation
    Inventors: Sepehr M. Tehrani, Carlos Dondon, Syed Mohsin Ali, Biby Esther Abraham, C. Geoffrey Allen, Mihaela Maria Birau, Atousa Abdollahi, Karen A. Moffat
  • Publication number: 20230357568
    Abstract: A nonlimiting example method of forming polyamide polymer particles having pigments therein may comprising: mixing a mixture comprising a polyamide having a pigment pendent from a backbone of the polyamide (PP-polyamide), a carrier fluid that is immiscible with the PP-polyamide, and optionally an emulsion stabilizer at a temperature greater than a melting point or softening temperature of the PP-polyamide and at a shear rate sufficiently high to disperse the PP-polyamide in the carrier fluid; and cooling the mixture to below the melting point or softening temperature of the PP-polyamide to form solidified particles comprising the PP-polyamide and, when present, the emulsion stabilizer associated with an outer surface of the solidified particles. Said solidified particles may be used in additive manufacturing to make a variety of objects like containers, toys, furniture parts and decorative home goods, plastic gears, automotive parts, medical items, and the like.
    Type: Application
    Filed: July 14, 2023
    Publication date: November 9, 2023
    Applicant: Xerox Corporation
    Inventors: Karen A. MOFFAT, Valerie M. FARRUGIA
  • Patent number: 11802206
    Abstract: A nonlimiting example method of forming polyamide polymer particles having pigments therein may comprising: mixing a mixture comprising a polyamide having a pigment pendent from a backbone of the polyamide (PP-polyamide), a carrier fluid that is immiscible with the PP-polyamide, and optionally an emulsion stabilizer at a temperature greater than a melting point or softening temperature of the PP-polyamide and at a shear rate sufficiently high to disperse the PP-polyamide in the carrier fluid; and cooling the mixture to below the melting point or softening temperature of the PP-polyamide to form solidified particles comprising the PP-polyamide and, when present, the emulsion stabilizer associated with an outer surface of the solidified particles. Said solidified particles may be used in additive manufacturing to make a variety of objects like containers, toys, furniture parts and decorative home goods, plastic gears, automotive parts, medical items, and the like.
    Type: Grant
    Filed: June 30, 2020
    Date of Patent: October 31, 2023
    Inventors: Karen A. Moffat, Valerie M. Farrugia
  • Publication number: 20230314971
    Abstract: Toners are provided which may comprise toner particles, a colorant, and optionally, a wax, wherein the toner particles comprise a resin comprising a polymerization product of reactants comprising a dioxane/dioxolane monomer and a vinyl co-monomer, wherein the dioxane/dioxolane monomer is an ester of (meth)acrylic acid with an alcohol comprising a dioxane moiety, an ester of (meth)acrylic acid with an alcohol comprising a dioxolane moiety, or both.
    Type: Application
    Filed: June 7, 2023
    Publication date: October 5, 2023
    Inventors: Karen A. Moffat, Kimberly D. Nosella, Sepehr M. Tehrani
  • Patent number: 11714361
    Abstract: Toners are provided which may comprise toner particles, a colorant, and optionally, a wax, wherein the toner particles comprise a resin comprising a polymerization product of reactants comprising a dioxane/dioxolane monomer and a vinyl co-monomer, wherein the dioxane/dioxolane monomer is an ester of (meth)acrylic acid with an alcohol comprising a dioxane moiety, an ester of (meth)acrylic acid with an alcohol comprising a dioxolane moiety, or both.
    Type: Grant
    Filed: July 27, 2021
    Date of Patent: August 1, 2023
    Assignee: Xerox Corporation
    Inventors: Karen A. Moffat, Kimberly D. Nosella, Sepehr M. Tehrani
  • Publication number: 20230159704
    Abstract: A nonlimiting example method for synthesizing a pigment-pendent polyamide (PP-polyamide) may comprise: functionalizing metal oxide particles bound to a pigment particle with a compound having an epoxy to produce a surface treated pigment having a pendent epoxy; and reacting the pendent epoxy with a polyamide to yield the PP-polyamide. Another nonlimiting example method for synthesizing a PP-polyamide may comprise: functionalizing metal oxide particles bound to a pigment particle with a silica particle having a carboxylic acid surface treatment to produce a surface treated pigment having a pendent carboxylic acid; converting the pendent carboxylic acid to a pendent acid chloride; and reacting the pendent acid chloride with a polyamide to yield the PP-polyamide.
    Type: Application
    Filed: December 28, 2022
    Publication date: May 25, 2023
    Applicant: Xerox Corporation
    Inventors: Valerie M. FARRUGIA, Karen A. MOFFAT
  • Patent number: 11639053
    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: Grant
    Filed: March 29, 2019
    Date of Patent: May 2, 2023
    Assignee: Xerox Corporation
    Inventors: Richard P. N. Veregin, Karen A. Moffat, Michael Steven Hawkins, Shivanthi Easwari Sriskandha
  • Patent number: 11628494
    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: Grant
    Filed: March 29, 2019
    Date of Patent: April 18, 2023
    Assignee: Xerox Corporation
    Inventors: Richard P. N. Veregin, Karen A. Moffat
  • Publication number: 20230100354
    Abstract: Latexes are provided which may comprise water and resin particles comprising a polymerization product of reactants comprising a dioxane/dioxolane monomer and a vinyl co-monomer, wherein the dioxane/dioxolane monomer is an ester of (meth)acrylic acid with an alcohol comprising a dioxane moiety, an ester of (meth)acrylic acid with an alcohol comprising a dioxolane moiety, or both.
    Type: Application
    Filed: July 27, 2021
    Publication date: March 30, 2023
    Inventors: Karen A. Moffat, Sepehr M. Tehrani, Kimberly D. Nosella, Richard P. N. Veregin
  • Publication number: 20230055456
    Abstract: Ink compositions are provided which may comprise water; resin particles; a colorant; and optionally, a wax, wherein the resin particles comprise a polymerization product of reactants comprising a dioxane/dioxalane monomer and an additional monomer, wherein the dioxane/dioxalane monomer is an ester of (meth)acrylic acid with an alcohol comprising a dioxane moiety, an ester of (meth)acrylic acid with an alcohol comprising a dioxalane moiety, or both.
    Type: Application
    Filed: July 27, 2021
    Publication date: February 23, 2023
    Inventors: Sepehr M. Tehrani, Carlos Dondon, Syed Mohsin Ali, Biby Esther Abraham, C. Geoffrey Allen, Mihaela Maria Birau, Atousa Abdollahi, Karen A. Moffat
  • Publication number: 20230051056
    Abstract: Toners are provided which may comprise toner particles, a colorant, and optionally, a wax, wherein the toner particles comprise a resin comprising a polymerization product of reactants comprising a dioxane/dioxolane monomer and a vinyl co-monomer, wherein the dioxane/dioxolane monomer is an ester of (meth)acrylic acid with an alcohol comprising a dioxane moiety, an ester of (meth)acrylic acid with an alcohol comprising a dioxolane moiety, or both.
    Type: Application
    Filed: July 27, 2021
    Publication date: February 16, 2023
    Inventors: Karen A. Moffat, Kimberly D. Nosella, Sepehr M. Tehrani
  • Publication number: 20230046647
    Abstract: Compositions are provided which may comprise a plurality of organic additive particles, the particles comprising a polymerization product of reactants comprising a dioxane/dioxolane monomer and a vinyl co-monomer, wherein the dioxane/dioxolane monomer is an ester of (meth)acrylic acid with an alcohol comprising a dioxane moiety, an ester of (meth)acrylic acid with an alcohol comprising a dioxolane moiety, or both. Toner and additive manufacturing compositions comprising the organic additive particles are also provided.
    Type: Application
    Filed: July 27, 2021
    Publication date: February 16, 2023
    Inventors: Karen A. Moffat, Sepehr M. Tehrani, Kimberly D. Nosella, Raysa Rodriguez Diaz, Richard P. N. Veregin, Cuong Vong
  • Patent number: 11572441
    Abstract: A nonlimiting example method for synthesizing a pigment-pendent polyamide (PP-polyamide) may comprise: functionalizing metal oxide particles bound to a pigment particle with a compound having an epoxy to produce a surface treated pigment having a pendent epoxy; and reacting the pendent epoxy with a polyamide to yield the PP-polyamide. Another nonlimiting example method for synthesizing a PP-polyamide may comprise: functionalizing metal oxide particles bound to a pigment particle with a silica particle having a carboxylic acid surface treatment to produce a surface treated pigment having a pendent carboxylic acid; converting the pendent carboxylic acid to a pendent acid chloride; and reacting the pendent acid chloride with a polyamide to yield the PP-polyamide.
    Type: Grant
    Filed: June 30, 2020
    Date of Patent: February 7, 2023
    Assignee: XEROX CORPORATION
    Inventors: Valerie M. Farrugia, Karen A. Moffat
  • 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
  • Publication number: 20210070992
    Abstract: A nonlimiting example method of forming polyamide polymer particles having pigments therein may comprising: mixing a mixture comprising a polyamide having a pigment pendent from a backbone of the polyamide (PP-polyamide), a carrier fluid that is immiscible with the PP-polyamide, and optionally an emulsion stabilizer at a temperature greater than a melting point or softening temperature of the PP-polyamide and at a shear rate sufficiently high to disperse the PP-polyamide in the carrier fluid; and cooling the mixture to below the melting point or softening temperature of the PP-polyamide to form solidified particles comprising the PP-polyamide and, when present, the emulsion stabilizer associated with an outer surface of the solidified particles. Said solidified particles may be used in additive manufacturing to make a variety of objects like containers, toys, furniture parts and decorative home goods, plastic gears, automotive parts, medical items, and the like.
    Type: Application
    Filed: June 30, 2020
    Publication date: March 11, 2021
    Applicant: Xerox Corporation
    Inventors: Karen A. Moffat, Valerie M. Farrugia
  • Publication number: 20210070938
    Abstract: A nonlimiting example method for synthesizing a pigment-pendent polyamide (PP-polyamide) may comprise: functionalizing metal oxide particles bound to a pigment particle with a compound having an epoxy to produce a surface treated pigment having a pendent epoxy; and reacting the pendent epoxy with a polyamide to yield the PP-polyamide. Another nonlimiting example method for synthesizing a PP-polyamide may comprise: functionalizing metal oxide particles bound to a pigment particle with a silica particle having a carboxylic acid surface treatment to produce a surface treated pigment having a pendent carboxylic acid; converting the pendent carboxylic acid to a pendent acid chloride; and reacting the pendent acid chloride with a polyamide to yield the PP-polyamide.
    Type: Application
    Filed: June 30, 2020
    Publication date: March 11, 2021
    Applicant: Xerox Corporation
    Inventors: Valerie M. Farrugia, Karen A. Moffat
  • 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: 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