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公开(公告)号：US12066790B2
公开(公告)日：2024-08-20
申请号：US17167430
申请日：2021-02-04
Applicant: Xerox Corporation
Inventor： Jordan A. Frank , Daniel W. Asarese , Chieh-Min Cheng , Paul K. Acquaviva , Richard P. N. Veregin , Michael F. Zona
CPC classification number: G03G9/09364 , G03G9/081 , G03G9/08711 , G03G9/08782 , G03G9/0904 , G03G9/0918 , G03G9/09321
Abstract: Toner particles including a core and a shell thereover; wherein the core comprises at least one styrene-acrylate copolymer selected from styrene-acrylate copolymer 1, styrene-acrylate copolymer 2, and styrene-acrylate copolymer 3, and combinations thereof a wax; and an optional colorant; wherein the shell comprises at least one styrene-acrylate copolymer selected from styrene-acrylate copolymer 1, styrene acrylate copolymer 2, styrene acrylate copolymer 3, and combinations thereof.
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公开(公告)号：US20230159683A1
公开(公告)日：2023-05-25
申请号：US17493966
申请日：2021-10-05
Applicant: Xerox Corporation
Inventor： Richard P. N. Veregin , Kimberly D. Nosella , Raysa Rodriguez Diaz , Nan-Xing Hu , Majid Kamel , Cuong Vong
IPC: C08F220/22 , C08F212/36 , C08F220/34 , C08F230/08 , G03G9/087
CPC classification number: C08F220/22 , C08F212/36 , C08F220/34 , C08F230/08 , G03G9/08728
Abstract: An organic polymeric particle including an optional first monomer comprising a hydrophobic monomer; a second monomer comprising two or more vinyl groups; an optional third monomer comprising an amine; and a vinyl siloxane polymerizable monomer.
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公开(公告)号：US11639053B2
公开(公告)日：2023-05-02
申请号：US16369359
申请日：2019-03-29
Applicant: Xerox Corporation
Inventor： Richard P. N. Veregin , Karen A. Moffat , Michael Steven Hawkins , Shivanthi Easwari Sriskandha
IPC: B29B7/90 , B33Y10/00 , B33Y70/00 , B29C64/153 , B29B13/06 , C09D11/102
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.
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公开(公告)号：US11628494B2
公开(公告)日：2023-04-18
申请号：US16369449
申请日：2019-03-29
Applicant: Xerox Corporation
Inventor： Richard P. N. Veregin , Karen A. Moffat
IPC: B22F1/102 , B22F1/065 , B33Y70/00 , B22F10/20 , C08F2/22 , C08F212/36 , C08F220/14
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.
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公开(公告)号：US20220244656A1
公开(公告)日：2022-08-04
申请号：US17167430
申请日：2021-02-04
Applicant: Xerox Corporation
Inventor： Jordan A. Frank , Daniel W. Asarese , Chieh-Min Cheng , Paul K. Acquaviva , Richard P. N. Veregin , Michael F. Zona
Abstract: Toner particles including a core and a shell thereover; wherein the core comprises at least one styrene-acrylate copolymer selected from styrene-acrylate copolymer 1, styrene-acrylate copolymer 2, and styrene-acrylate copolymer 3, and combinations thereof a wax; and an optional colorant; wherein the shell comprises at least one styrene-acrylate copolymer selected from styrene-acrylate copolymer 1, styrene acrylate copolymer 2, styrene acrylate copolymer 3, and combinations thereof.
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Patent Agency Ranking
公开(公告)号：US20210263437A1
公开(公告)日：2021-08-26
申请号：US16800236
申请日：2020-02-25
Applicant: Xerox Corporation
Inventor： Richard P. N. Veregin , Michael F. Zona , Jordan A. Frank , Daniel W. Asarese , Chieh-Min Cheng , Paul K. Acquaviva
Abstract: A toner including a parent toner particle comprising at least one resin, in combination with an optional colorant, and an optional wax; and a surface additive formulation comprising at least one medium silica surface additive; at least one large cross-linked organic polymeric additive; at least one positive charging surface additive, wherein the at least one positive charging surface additive is (a) a titanium dioxide surface additive; and wherein the parent toner particles further contain a small silica; or (b) a non-titanium dioxide positive charging metal oxide surface additive; and wherein the parent toner particles further optionally contain a small silica; and wherein a total surface area coverage of all of the surface additives combined is 100 to 140 percent of the parent toner particle surface area.
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公开(公告)号：US10935901B1
公开(公告)日：2021-03-02
申请号：US16693649
申请日：2019-11-25
Applicant: XEROX CORPORATION
Inventor： Yu Qi , Shigeng Li , Richard P. N. Veregin
Abstract: Described herein is a metallic toner. The metallic toner includes flake shape toner particles having a binder resin, zinc stearate, silica having a particle size of from 7 nm to less than 12 nm in an amount of about 0.1 weight percent to 1.0 about weight percent of the flake shape toner particle and tabular shape metallic pigments. The flake shape toner particles have an average major axis length of from 6 μm to 20 μm, an average thickness of from 1 μm to 4 μm and an average circularity of from 0.5 to 0.97. The tabular shape metallic pigments have an average major axis length of from 1 μm to 14 μm an average thickness of from 0.01 μm to 0.5 μm.
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公开(公告)号：US10725394B1
公开(公告)日：2020-07-28
申请号：US16369206
申请日：2019-03-29
Applicant: Xerox Corporation
Inventor： Richard P. N. Veregin , Shivanthi Easwari Sriskandha , David R. Kurceba , Scott Edward Silver , Melanie Lynn Davis , Cuong Vong
Abstract: A polymeric composition including a copolymer comprising a first monomer having a high carbon to oxygen ratio of from about 3 to about 8; a second monomer comprising two or more vinyl groups, wherein the second monomer is present in the copolymer in an amount of from greater than about 8 percent by weight to about 40 percent by weight, based on the weight of the copolymer; and optionally, a third monomer comprising an amine, wherein the third monomer is present in an amount of from about 0.1 percent by weight to about 1.5 percent by weight, based on the weight of the copolymer; and a surfactant, wherein the surfactant has a minimum surface tension at critical micelle concentration of less than about 30 mN/m. A toner including the copolymer as a toner surface additive. An emulsion aggregation toner process including the copolymer as a toner surface additive.
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公开(公告)号：US10248038B1
公开(公告)日：2019-04-02
申请号：US15877622
申请日：2018-01-23
Applicant: Xerox Corporation
Inventor： Yu Qi , Shigeng Li , Chieh-Min Cheng , Richard P. N. Veregin , Edward G. Zwartz
Abstract: Graphene-containing toners are provided. In an embodiment, a graphene-containing toner comprises a core comprising graphene, a crystalline polyester resin, and an amorphous polyester resin, the toner further comprising a shell over the core. Methods of making and using the toners are also provided.
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公开(公告)号：US10126671B2
公开(公告)日：2018-11-13
申请号：US15377680
申请日：2016-12-13
Applicant: XEROX CORPORATION
Inventor： Richard P. N. Veregin , Eric Rotberg , Edward Graham Zwartz , Suxia Yang , Daryl W. Vanbesien , Cuong Vong , Karen Ann Moffat
Abstract: The present disclosure provides processes for producing images with toner particles. In embodiments, toner particles of a certain diameter in size are applied to a substrate as an incomplete monolayer, and then fused to form an image that is a complete monolayer and possesses a thickness less than the diameter of the particles utilized to form the image.
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