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公开(公告)号：US12257633B2
公开(公告)日：2025-03-25
申请号：US17823706
申请日：2022-08-31
Applicant: Xerox Corporation
Inventor： Benjamin Knapik , Michael S. Hawkins , David Lawton , Kimberly D. Nosella
Abstract: A method for producing metal or metal alloy particles may include: mixing a mixture comprising: (a) a metal or a metal alloy, (b) a carrier fluid, and optionally (c) an emulsion stabilizer at a temperature at or greater than a melting point of the metal or the metal alloy to create a dispersion of molten droplets of the metal or the metal alloy dispersed in the carrier fluid; cooling the mixture to below the melting point of the metal or the metal alloy to form metal or metal alloy particles; and separating the metal or metal alloy particles from the carrier fluid, wherein the metal or metal alloy particles comprise the metal or the metal alloy and the emulsion stabilizer, if included.
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公开(公告)号：US12061441B2
公开(公告)日：2024-08-13
申请号：US18206700
申请日：2023-06-07
Applicant: Xerox Corporation
Inventor： Karen A. Moffat , Kimberly D. Nosella , Sepehr M. Tehrani
CPC classification number: G03G9/08711 , G03G9/0819 , G03G9/09
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.
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公开(公告)号：US11999862B2
公开(公告)日：2024-06-04
申请号：US17004861
申请日：2020-08-27
Applicant: Xerox Corporation
Inventor： Kimberly D. Nosella , Richard Philip Nelson Veregin , Naveen Chopra
IPC: C09D11/102 , B29C64/118 , B29C64/40 , B33Y10/00 , B33Y70/00 , C08G73/16 , C09D11/54 , D01F6/74 , B29K79/00
CPC classification number: C09D11/102 , B29C64/118 , B29C64/40 , B33Y10/00 , B33Y70/00 , C08G73/16 , C09D11/54 , D01F6/74 , B29K2079/085
Abstract: 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. An unsupported part may be formed following exposure of the supported part to an aqueous fluid.
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公开(公告)号：US20230097294A1
公开(公告)日：2023-03-30
申请号：US17476933
申请日：2021-09-16
Applicant: Xerox Corporation
Inventor： Richard Philip Nelson Veregin , Kimberly D. Nosella , Raysa Rodriguez Diaz , Melanie Lynn Davis , Cuong Vong
Abstract: 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.
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公开(公告)号：US11579138B2
公开(公告)日：2023-02-14
申请号：US16701312
申请日：2019-12-03
Applicant: Xerox Corporation
Inventor： Richard P. N. Veregin , Kimberly D. Nosella , Rosa M. Duque , Melanie Lynn Davis , David R. Kurceba , Cuong Vong
IPC: G01N33/44 , G01N23/223 , H01J49/10 , C08F2/28 , C08F220/18 , C08F212/36 , C08F220/34
Abstract: A method for assessing polymeric additive content A in a polymeric particle mixture may comprise determining a concentration B of a metal cation in a polymeric particle mixture comprising parent polymeric particles and polymeric additive particles, wherein the metal cation is selected from alkali earth metals and alkali metals, other than sodium (Na), and the metal cation is capable of forming a water-soluble base; determining a concentration C of the metal cation in the parent polymeric particles; determining a concentration D of the metal cation in the polymeric additive particles; and calculating a polymeric additive content A using formula A=(B−C)/D.
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Patent Agency Ranking
公开(公告)号：US10649355B2
公开(公告)日：2020-05-12
申请号：US15215226
申请日：2016-07-20
Applicant: XEROX CORPORATION
Inventor： Barkev Keoshkerian , Rachel Prestayko , Kimberly D. Nosella , Valerie M. Farrugia
IPC: G03G9/08 , C08K3/04 , C08J3/16 , G03G9/09 , D01F1/10 , B29C70/58 , B33Y10/00 , B33Y70/00 , D01F1/09 , B29K7/00 , B29K507/04 , B29C70/88 , B29C64/106 , B29C64/118
Abstract: A method of making a composite feed material for fused deposition modeling (FDM) is disclosed. The method comprises providing composite particles made by a process of emulsion aggregation, the composite particles comprising at least one thermoplastic polymer and at least one carbon particle material. A composite feed material is formed for fused deposition modeling from the composite particles. The composite feed material is in a form selected from a filament and a paste.
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公开(公告)号：US10539896B1
公开(公告)日：2020-01-21
申请号：US16247245
申请日：2019-01-14
Applicant: Xerox Corporation
Abstract: A toner composition including an amorphous polyester resin; a crystalline polyester resin; a styrene acrylate copolymer; an optional wax; and an optional colorant; wherein the amorphous polyester resin comprises a rosin monomer content of from about 10 to about 25 percent rosin monomer based upon the total amount of monomer comprising the amorphous polyester resin. A toner composition including a core and at least one shell disposed thereover. A toner process including contacting an amorphous polyester resin; a crystalline polyester resin; a styrene acrylate copolymer; an optional wax; an optional colorant; and an optional aggregating agent; wherein the amorphous polyester resin comprises a rosin monomer content of from about 10 to about 25 percent rosin monomer heating to form aggregated toner particles; optionally, adding a shell resin to the aggregated toner particles, heating to coalesce the particles; and recovering the toner particles.
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公开(公告)号：US20180022042A1
公开(公告)日：2018-01-25
申请号：US15215226
申请日：2016-07-20
Applicant: XEROX CORPORATION
Inventor： Barkev Keoshkerian , Rachel Prestayko , Kimberly D. Nosella , Valerie M. Farrugia
IPC: B29C67/00
CPC classification number: G03G9/0804 , B29C64/106 , B29C64/118 , B29C70/58 , B29C70/882 , B29K2007/00 , B29K2507/04 , B33Y10/00 , B33Y70/00 , C08J3/16 , C08K3/041 , D01F1/09 , D01F1/10 , G03G9/0904
Abstract: A method of making a composite feed material for fused deposition modeling (FDM) is disclosed. The method comprises providing composite particles made by a process of emulsion aggregation, the composite particles comprising at least one thermoplastic polymer and at least one carbon particle material. A composite feed material is formed for fused deposition modeling from the composite particles. The composite feed material is in a form selected from a filament and a paste.
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公开(公告)号：US09188895B2
公开(公告)日：2015-11-17
申请号：US14107667
申请日：2013-12-16
Applicant: XEROX CORPORATION
CPC classification number: G03G9/10 , G03G9/0804 , G03G9/0823 , G03G9/08755 , G03G9/08782 , G03G9/08797 , G03G9/09371 , G03G9/09392 , G03G9/09766
Abstract: Toner additives for improving overall toner charging. In particular, incorporation of fluorinated surfactants into latex for formation of toner core particles provide enhanced charging without any significant adverse impact on the other properties of the toner. Methods of making toners comprising the fluorinated surfactants are also provided.
Abstract translation: 调色剂添加剂用于改善整体调色剂充电。 特别地，将氟化表面活性剂掺入用于形成调色剂芯颗粒的胶乳中提供了增强的充电，而对调色剂的其它性能没有任何显着的不利影响。 还提供了制备包含氟化表面活性剂的调色剂的方法。
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公开(公告)号：US20150168861A1
公开(公告)日：2015-06-18
申请号：US14107667
申请日：2013-12-16
Applicant: XEROX CORPORATION
Inventor： Valerie M. Farrugia , Kimberly D. Nosella , Richard P.N. Veregin , Michael S. Hawkins
CPC classification number: G03G9/10 , G03G9/0804 , G03G9/0823 , G03G9/08755 , G03G9/08782 , G03G9/08797 , G03G9/09371 , G03G9/09392 , G03G9/09766
Abstract: Toner additives for improving overall toner charging. In particular, incorporation of fluorinated surfactants into latex for formation of toner core particles provide enhanced charging without any significant adverse impact on the other properties of the toner. Methods of making toners comprising the fluorinated surfactants are also provided.
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