Patents by Inventor Richard Philip Nelson Veregin
Richard Philip Nelson 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).
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Publication number: 20230416529Abstract: Pigmented polymer particles may comprise a thermoplastic polymer and a pigment, wherein at least some of the pigmented polymer particles have a morphology according to (a), (b), (c), or any combination thereof: (a) the pigment having a coating comprising the thermoplastic polymer and the coated pigment adhered to a thermoplastic polymer particle, (b) the pigment being embedded in an outer surface of the thermoplastic polymer particle, and (c) the pigment being encapsulated by the thermoplastic polymer particle. The pigmented polymer particles, especially the highly spherical pigmented polymer particles, may be useful, among other things, as starting material for additive manufacturing. For example, a method may comprise: depositing, upon a surface, the foregoing pigmented polymer particles optionally in combination with other thermoplastic polymer particles; and once deposited, heating at least a portion of the particles to promote consolidation thereof and form a consolidated body.Type: ApplicationFiled: September 7, 2023Publication date: December 28, 2023Applicant: Xerox CorporationInventors: Shivanthi Easwari SRISKANDHA, Valerie M. FARRUGIA, Richard Philip Nelson VEREGIN
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Patent number: 11815851Abstract: Disclosed herein is a toner composition, developer and additive for a toner composition. The toner composition includes toner particles having at least one resin, an optional colorant, an optional wax, and a crosslinked polymer particle on at least a portion of an external surface of the toner particles. The crosslinked polymeric particle on a surface of the toner particles includes at least a hydrophobic monomer comprising a non-fluorinated monomer having a carbon to oxygen (C/O) ratio of 3 or greater or a fluorinated monomer. The crosslinked polymer particle includes a second monomer comprising two or more vinyl groups present in an amount from about 8 wt % to about 40 wt % of the copolymer, a metal oxide and optionally a charge control agent monomer.Type: GrantFiled: March 26, 2021Date of Patent: November 14, 2023Assignee: XEROX CORPORATIONInventors: Richard Philip Nelson Veregin, Kimberly D. Nosella, Raysa Rodriguez Diaz, Cuong Vong, Sandra J. Gardner, Majid Kamel
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Patent number: 11787944Abstract: Pigmented polymer particles may comprise a thermoplastic polymer and a pigment, wherein at least some of the pigmented polymer particles have a morphology according to (a), (b), (c), or any combination thereof: (a) the pigment having a coating comprising the thermoplastic polymer and the coated pigment adhered to a thermoplastic polymer particle, (b) the pigment being embedded in an outer surface of the thermoplastic polymer particle, and (c) the pigment being encapsulated by the thermoplastic polymer particle. The pigmented polymer particles, especially the highly spherical pigmented polymer particles, may be useful, among other things, as starting material for additive manufacturing. For example, a method may comprise: depositing, upon a surface, the foregoing pigmented polymer particles optionally in combination with other thermoplastic polymer particles; and once deposited, heating at least a portion of the particles to promote consolidation thereof and form a consolidated body.Type: GrantFiled: November 25, 2020Date of Patent: October 17, 2023Assignee: Xerox CorporationInventors: Shivanthi Easwari Sriskandha, Valerie M. Farrugia, Richard Philip Nelson Veregin
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Publication number: 20230322982Abstract: Additive manufacturing processes featuring consolidation of thermoplastic particulates may form printed objects in a range of shapes. Inorganic nanoparticles disposed upon the outer surface of the thermoplastic particulates may improve flow performance of the thermoplastic particulates during additive manufacturing, but may be undesirable to incorporate in some printed objects. Polymer nanoparticles may be substituted for inorganic nanoparticles in some instances to address this difficulty and provide other advantages. Particulate compositions suitable for additive manufacturing may comprise: a plurality of thermoplastic particulates comprising a thermoplastic polymer and a plurality of polymer nanoparticles disposed upon an outer surface of the thermoplastic particulates, the polymer nanoparticles comprising a crosslinked fluorinated polymer.Type: ApplicationFiled: June 6, 2023Publication date: October 12, 2023Applicant: Xerox CorporationInventors: Nan-Xing HU, Kimberly D. NOSELLA, Richard Philip Nelson VEREGIN, Yulin WANG, Raysa Rodriguez DIAZ
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Patent number: 11731349Abstract: Additive manufacturing processes featuring consolidation of thermoplastic particulates may form printed objects in a range of shapes. Nanoparticles disposed upon the outer surface of the thermoplastic particulates may improve flow performance of the thermoplastic particulates during additive manufacturing, but may lead to excessive porosity following consolidation. Excessive porosity may be detrimental for performance applications requiring high mechanical strength. A carboxylic acid-based sintering aid, particularly a metal carboxylate, may decrease porosity of consolidated parts following sintering without substantially increasing blocking in a powder bed. Particulate compositions suitable for additive manufacturing may comprise: a plurality of thermoplastic particulates comprising a carboxylic acid-based sintering aid admixed with a thermoplastic polymer, and a plurality of nanoparticles disposed upon an outer surface of the thermoplastic particulates.Type: GrantFiled: October 15, 2020Date of Patent: August 22, 2023Assignee: Xerox CorporationInventors: Robert Claridge, Cristina Resetco, Richard Philip Nelson Veregin
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Patent number: 11708436Abstract: Additive manufacturing processes featuring consolidation of thermoplastic particulates may form printed objects in a range of shapes. Inorganic nanoparticles disposed upon the outer surface of the thermoplastic particulates may improve flow performance of the thermoplastic particulates during additive manufacturing, but may be undesirable to incorporate in some printed objects. Polymer nanoparticles may be substituted for inorganic nanoparticles in some instances to address this difficulty and provide other advantages. Particulate compositions suitable for additive manufacturing may comprise: a plurality of thermoplastic particulates comprising a thermoplastic polymer and a plurality of polymer nanoparticles disposed upon an outer surface of the thermoplastic particulates, the polymer nanoparticles comprising a crosslinked fluorinated polymer.Type: GrantFiled: November 2, 2020Date of Patent: July 25, 2023Assignee: Xerox CorporationInventors: Nan-Xing Hu, Kimberly D. Nosella, Richard Philip Nelson Veregin, Yulin Wang, Raysa Rodriguez Diaz
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Patent number: 11644760Abstract: Disclosed herein is a toner composition, developer and additive for a toner composition. The toner composition includes toner particles including at least one resin, an optional colorant, an optional wax, and a polymeric toner additive on at least a portion of an external surface of the toner particles. The polymeric toner additive includes a polymeric resin including a fluorinated monomer, wherein the polymeric resin is less than 10% by weight crosslinked, and optionally a charge control agent comprising nitrogen containing group at 0.1 wt % to 1.5 wt % of the polymeric resin.Type: GrantFiled: November 2, 2020Date of Patent: May 9, 2023Assignee: XEROX CORPORATIONInventors: Richard Philip Nelson Veregin, Kimberly D. Nosella, Raysa Rodriguez Diaz, Melanie Lynn Davis, Cuong Vong
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Publication number: 20230097294Abstract: Disclosed herein is a toner composition, developer and additive for a toner composition. The toner composition includes toner particles comprising at least one resin, an optional colorant, an optional wax, and a polymeric toner additive on at least a portion of an external surface of the toner particles. The polymeric toner additive includes a polymeric resin comprising a cross-linked fluorinated acrylic monomer, a cross-linkable monomer containing two or more vinyl groups at 8 wt% to 40 wt% of the polymeric resin, and optionally a charge control agent comprising nitrogen containing group at 0.1 wt% to 1.5 wt% of the polymeric resin.Type: ApplicationFiled: September 16, 2021Publication date: March 30, 2023Inventors: Richard Philip Nelson Veregin, Kimberly D. Nosella, Raysa Rodriguez Diaz, Melanie Lynn Davis, Cuong Vong
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Publication number: 20220308487Abstract: Disclosed herein is a toner composition, developer and additive for a toner composition. The toner composition includes toner particles having at least one resin, an optional colorant, an optional wax, and a crosslinked polymer particle on at least a portion of an external surface of the toner particles. The crosslinked polymeric particle on a surface of the toner particles includes at least a hydrophobic monomer comprising a non-fluorinated monomer having a carbon to oxygen (C/O) ratio of 3 or greater or a fluorinated monomer. The crosslinked polymer particle includes a second monomer comprising two or more vinyl groups present in an amount from about 8 wt % to about 40 wt % of the copolymer, a metal oxide and optionally a charge control agent monomer.Type: ApplicationFiled: March 26, 2021Publication date: September 29, 2022Inventors: Richard Philip Nelson Veregin, Kimberly D. Nosella, Raysa Rodriguez Diaz, Cuong Vong, Sandra J. Gardner, Majid Kamel
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Patent number: 11397387Abstract: Disclosed herein is a toner composition, developer and additive for a toner composition. The toner composition includes toner particles including at least one resin, an optional colorant, an optional wax, and a polymeric toner additive on at least a portion of an external surface of the toner particles. The polymeric toner additive includes a polymeric resin including a fluorinated acrylic monomer, a cross-linkable monomer containing two or more vinyl groups at 8 wt % to 40 wt % of the polymeric resin, and optionally a charge control agent comprised of a nitrogen containing group at 0.1 wt % to 1.5 wt % of the polymeric resin.Type: GrantFiled: November 2, 2020Date of Patent: July 26, 2022Assignee: Xerox CorporationInventors: Richard Philip Nelson Veregin, Kimberly D. Nosella, Raysa Rodriguez Diaz, Melanie Lynn Davis, Cuong Vong
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Publication number: 20220162446Abstract: Pigmented polymer particles may comprise a thermoplastic polymer and a pigment, wherein at least some of the pigmented polymer particles have a morphology according to (a), (b), (c), or any combination thereof: (a) the pigment having a coating comprising the thermoplastic polymer and the coated pigment adhered to a thermoplastic polymer particle, (b) the pigment being embedded in an outer surface of the thermoplastic polymer particle, and (c) the pigment being encapsulated by the thermoplastic polymer particle. The pigmented polymer particles, especially the highly spherical pigmented polymer particles, may be useful, among other things, as starting material for additive manufacturing. For example, a method may comprise: depositing, upon a surface, the foregoing pigmented polymer particles optionally in combination with other thermoplastic polymer particles; and once deposited, heating at least a portion of the particles to promote consolidation thereof and form a consolidated body.Type: ApplicationFiled: November 25, 2020Publication date: May 26, 2022Applicant: Xerox CorporationInventors: Shivanthi Easwari Sriskandha, Valerie M. Farrugia, Richard Philip Nelson Veregin
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Publication number: 20220137526Abstract: Disclosed herein is a toner composition, developer and additive for a toner composition. The toner composition includes toner particles including at least one resin, an optional colorant, an optional wax, and a polymeric toner additive on at least a portion of an external surface of the toner particles. The polymeric toner additive includes a polymeric resin including a fluorinated acrylic monomer, a cross-linkable monomer containing two or more vinyl groups at 8 wt % to 40 wt % of the polymeric resin, and optionally a charge control agent comprised of a nitrogen containing group at 0.1 wt % to 1.5 wt % of the polymeric resin.Type: ApplicationFiled: November 2, 2020Publication date: May 5, 2022Inventors: Richard Philip Nelson Veregin, Kimberly D. Nosella, Raysa Rodriguez Diaz, Melanie Lynn Davis, Cuong Vong
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Publication number: 20220135716Abstract: Additive manufacturing processes featuring consolidation of thermoplastic particulates may form printed objects in a range of shapes. Inorganic nanoparticles disposed upon the outer surface of the thermoplastic particulates may improve flow performance of the thermoplastic particulates during additive manufacturing, but may be undesirable to incorporate in some printed objects. Polymer nanoparticles may be substituted for inorganic nanoparticles in some instances to address this difficulty and provide other advantages. Particulate compositions suitable for additive manufacturing may comprise: a plurality of thermoplastic particulates comprising a thermoplastic polymer and a plurality of polymer nanoparticles disposed upon an outer surface of the thermoplastic particulates, the polymer nanoparticles comprising a crosslinked fluorinated polymer.Type: ApplicationFiled: November 2, 2020Publication date: May 5, 2022Applicant: Xerox CorporationInventors: Nan-Xing Hu, Kimberly D. Nosella, Richard Philip Nelson Veregin, Yulin Wang, Raysa Rodriguez Diaz
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Publication number: 20220137524Abstract: Disclosed herein is a toner composition, developer and additive for a toner composition. The toner composition includes toner particles including at least one resin, an optional colorant, an optional wax, and a polymeric toner additive on at least a portion of an external surface of the toner particles. The polymeric toner additive includes a polymeric resin including a fluorinated monomer, wherein the polymeric resin is less than 10% by weight crosslinked, and optionally a charge control agent comprising nitrogen containing group at 0.1 wt % to 1.5 wt % of the polymeric resin.Type: ApplicationFiled: November 2, 2020Publication date: May 5, 2022Inventors: Richard Philip Nelson Veregin, Kimberly D. Nosella, Raysa Rodriguez Diaz, Melanie Lynn Davis, Cuong Vong
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Publication number: 20220118693Abstract: Additive manufacturing processes featuring consolidation of thermoplastic particulates may form printed objects in a range of shapes. Nanoparticles disposed upon the outer surface of the thermoplastic particulates may improve flow performance of the thermoplastic particulates during additive manufacturing, but may lead to excessive porosity following consolidation. Excessive porosity may be detrimental for performance applications requiring high mechanical strength. A carboxylic acid-based sintering aid, particularly a metal carboxylate, may decrease porosity of consolidated parts following sintering without substantially increasing blocking in a powder bed. Particulate compositions suitable for additive manufacturing may comprise: a plurality of thermoplastic particulates comprising a carboxylic acid-based sintering aid admixed with a thermoplastic polymer, and a plurality of nanoparticles disposed upon an outer surface of the thermoplastic particulates.Type: ApplicationFiled: October 15, 2020Publication date: April 21, 2022Applicant: Xerox CorporationInventors: Robert Claridge, Cristina Resetco, Richard Philip Nelson Veregin
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Publication number: 20220064462Abstract: When making parts by additive manufacturing, particularly by fused filament fabrication, it is sometimes necessary to include a removable support during part fabrication due to the shape of the part. An overhang, for instance, may be fabricated using a support structure, which is subsequently eliminated following polymer matrix consolidation. Elimination of a removable support following part fabrication may be problematic in some instances. Polymer filaments suitable for forming removable supports during additive manufacturing may comprise at least one imide polymer having at least partial solubility in aqueous fluids. Imide polymers may include, for example, polyimides and polyesterimides. Additive manufacturing processes may comprise forming a supported part by depositing a build material and a removable support comprising an imide polymer, wherein at least a portion of the build material is deposited upon the removable support.Type: ApplicationFiled: August 27, 2020Publication date: March 3, 2022Applicant: Xerox CorporationInventors: Kimberly D. Nosella, Richard Philip Nelson Veregin, Naveen Chopra
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Patent number: 10520840Abstract: A cold pressure fix toner composition includes at least one C16 to C80 crystalline organic material having a melting point in a range from about 30° C. to about 130° C. and at least one C16 to C80 amorphous organic material having a Tg of from about ?30° C. to about 70° C. A method of cold pressure fix toner application includes providing the cold pressure fix toner composition, disposing the cold pressure fix toner composition on a substrate and applying pressure to the disposed composition on the substrate under cold pressure fixing conditions. The cold pressure fix toner compositions can be formed into latexes.Type: GrantFiled: January 18, 2018Date of Patent: December 31, 2019Assignee: XEROX CORPORATIONInventors: Richard Philip Nelson Veregin, Nan-Xing Hu, Guerino G. Sacripante, Karen A. Moffat, Jennifer L. Belelie
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Patent number: 10048605Abstract: Cold pressure fix toner compositions include at least one crystalline polyester having a melting point in a range from about 30° C. to about 130° C., a rosin acid-based polyester resin and an amorphous polyester having a Tg higher than the rosin acid-based polyester. The crystalline polyester can have a melting point in a range from about 30° C. to about 130° C., the rosin acid-based polyester resin can have a Tg in a range from about 0° C. to about ?45° C. and an amorphous polyester having a Tg in a range from about 40° C. to about 70° C. The temperature difference between the rosin acid-based polyester resin and the amorphous polyester resin can be in a range from about 30° C. to about 110° C.Type: GrantFiled: January 24, 2017Date of Patent: August 14, 2018Assignee: XEROX CORPORATIONInventors: Guerino G. Sacripante, Yulin Wang, Nan-Xing Hu, Sandra J. Gardner, Richard Philip Nelson Veregin
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Publication number: 20180210358Abstract: Cold pressure fix toner compositions include at least one crystalline polyester having a melting point in a range from about 30° C. to about 130° C., a rosin acid-based polyester resin and an amorphous polyester having a Tg higher than the rosin acid-based polyester. The crystalline polyester can have a melting point in a range from about 30° C. to about 130° C., the rosin acid-based polyester resin can have a Tg in a range from about 0° C. to about ?45° C. and an amorphous polyester having a Tg in a range from about 40° C. to about 70° C. The temperature difference between the rosin acid-based polyester resin and the amorphous polyester resin can be in a range from about 30° C. to about 110° C.Type: ApplicationFiled: January 24, 2017Publication date: July 26, 2018Inventors: Guerino G. Sacripante, Yulin Wang, Nan-Xing Hu, Sandra J. Gardner, Richard Philip Nelson Veregin
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Patent number: 9989873Abstract: Disclosed herein include styrene-acrylic-based compositions containing a purine derivative antiplasticizer with particles having a core-shell type structure and methods for their preparation.Type: GrantFiled: April 27, 2017Date of Patent: June 5, 2018Assignee: XEROX CORPORATIONInventors: Valerie M. Farrugia, Richard Philip Nelson Veregin