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公开(公告)号：US20210283838A1
公开(公告)日：2021-09-16
申请号：US16818754
申请日：2020-03-13
Applicant: Xerox Corporation
Inventor： Chunliang Lu , Christopher Wolfe , John Ianni , Mark Mercandetti , John Pawlak , Chieh-Min Cheng
IPC: B29C64/188 , B29C64/153 , B29C64/118 , B29C64/393
Abstract: A method for improving z-axis strength of a 3D printed object is disclosed. For example, the method includes printing a three-dimensional (3D) object with a polymer and magnetic particles, heating the 3D object to a temperature at approximately a melting temperature of the polymer, and applying a magnetic field to the 3D object to locally move the magnetic particles in the polymer to generate heat and fuse the polymer around the magnetic particles to improve a z-axis strength of the 3D object.
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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：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：US20180059559A1
公开(公告)日：2018-03-01
申请号：US15250326
申请日：2016-08-29
Applicant: XEROX CORPORATION
Inventor： Judith M. Vandewinckel , Kevin F. Marcell , Chieh-Min Cheng , Brian J. Marion , Scott M. Smith
CPC classification number: G03G9/0804 , B02C23/12 , G03G9/0812 , G03G9/0817 , G03G9/0819 , G03G9/0821 , G03G9/08782
Abstract: A method includes grinding a wax into wax particles having a size in a range from about 600 microns to about 800 microns forming a mixture of the wax particles with water and a surfactant; and homogenizing the mixture to form a wax dispersion, the homogenizing step is maintained below about 35° C. A wax dispersion includes a wax a surfactant; and water, particles of the wax dispersion are a uniform, irregular, non-platelet morphology. A wax dispersion made by a process includes grinding a wax into wax particles having a size in a range from about 600 microns to about 800 microns, forming a mixture of the wax particles with water and a surfactant, and homogenizing the mixture to form a wax dispersion, the homogenizing step is maintained below about 35° C. and the wax has a uniform, irregular, non-platelet morphology imparted by combination of the grinding and homogenizing steps.
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公开(公告)号：US09798257B2
公开(公告)日：2017-10-24
申请号：US14958838
申请日：2015-12-03
Applicant: Xerox Corporation
Inventor： Matthew W Croteau , Mark A Jackson , Roger B B Keeble , Harold R Judd , Munir Salman , Vincenzo G Marcello , Chieh-Min Cheng , Steven M Malachowski , Grazyna Kmiecik-Lawrynowicz , Linda S Schriever
IPC: G03G9/08
CPC classification number: G03G9/0815 , G03G9/0804 , G03G9/0825 , G03G9/09392
Abstract: A method for removing volatile organic compounds (VOC's) from toner slurries is described, including the isolated toner particles generated by that method.
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Patent Agency Ranking
公开(公告)号：US20160161873A1
公开(公告)日：2016-06-09
申请号：US14561543
申请日：2014-12-05
Applicant: Xerox Corporation
Inventor： Christopher M. Wolfe , Chieh-Min Cheng , Eric J. Young , Randy P. Tin , Jay L. Schneider , Joo T. Chung
CPC classification number: G03G9/09371 , G03G9/0819 , G03G9/0823 , G03G9/08711 , G03G9/08755 , G03G9/09314 , G03G9/09357 , G03G9/09364 , G03G9/09392
Abstract: The present disclosure describes toner particles that have polyester resin and styrene/acrylate resin in the core.
Abstract translation: 本公开内容描述了在芯中具有聚酯树脂和苯乙烯/丙烯酸酯树脂的调色剂颗粒。
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公开(公告)号：US20160160046A1
公开(公告)日：2016-06-09
申请号：US14561464
申请日：2014-12-05
Applicant: Xerox Corporation
Inventor： Shigeng Li , Yanjia Zuo , Shigang Qiu , Peter V. Nguyen , Chieh-Min Cheng
CPC classification number: C08L67/02 , C08J3/07 , C08L77/06 , G03G9/0806 , G03G9/08755 , G03G9/08766
Abstract: A process for making a crystalline latex suitable for use in a toner by phase inversion emulsification (PIE) where the liquid reagents, such as, organic solvent(s), neutralizing agent and water, are reused from a prior PIE.
Abstract translation: 通过相转化乳化（PIE）制备适用于调色剂的结晶胶乳的方法，其中诸如有机溶剂，中和剂和水的液体试剂从先前的PIE再利用。
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公开(公告)号：US09280076B1
公开(公告)日：2016-03-08
申请号：US14527032
申请日：2014-10-29
Applicant: XEROX CORPORATION
Inventor： Shigeng Li , Christopher Michael Wolfe , Yanjia Zuo , Randy Pheav Tin , John L. Pawlak , Jay Lee Schneider , Peter Nguyen , Jordan Frank , Chieh-Min Cheng
CPC classification number: G03G9/09371 , G03G9/0804
Abstract: A toner includes a core including a homogenized mixture of a first polyester latex, a styrene/acrylate latex, and a compatibilizing agent latex that includes a graft polyester-styrene/acrylate copolymer and a shell that includes a polyester latex. A process includes (1) homogenizing a mixture to form a plurality of core particles, the mixture including a first polyester latex, a styrene/acrylate latex, and a compatibilizing agent latex comprising a graft polyester-styrene/acrylate copolymer and (2) adding a shell polyester latex to the plurality of core particles to form a plurality of core-shell structures.
Abstract translation: 调色剂包括包含第一聚酯胶乳，苯乙烯/丙烯酸酯胶乳和包含接枝聚酯 - 苯乙烯/丙烯酸酯共聚物和包含聚酯胶乳的壳体的相容剂胶乳的均匀混合物的芯。 一种方法包括（1）使混合物均化以形成多个核心颗粒，该混合物包括第一聚酯胶乳，苯乙烯/丙烯酸酯胶乳和包含接枝聚酯 - 苯乙烯/丙烯酸酯共聚物的相容剂胶乳和（2）添加 壳聚酯胶乳与所述多个芯颗粒形成多个核 - 壳结构。
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公开(公告)号：US09201321B2
公开(公告)日：2015-12-01
申请号：US13919989
申请日：2013-06-17
Applicant: XEROX CORPORATION
Inventor： Shigang Steven Qiu , Chieh-Min Cheng , Amy Grillo , Yulin Wang , Rashid Mahmood , David Kurceba
CPC classification number: G03G9/0804 , C08G63/00 , C08L67/00 , G03G9/08755 , G03G9/08795 , G03G9/08797 , G03G9/09328 , G03G9/09392
Abstract: A phase inversion emulsification process includes dissolving a polyester resin in a mixture comprising (1) an organic solvent, (2) a first portion of a total amount of neutralizing agent, and (3) a first portion of water, neutralizing the dissolved polyester resin with a second portion of neutralizing agent, the second portion of neutralizing agent including the remaining amount of the total amount neutralizing agent, forming an emulsion by adding a second portion of water after the neutralizing step, and removing a portion of the organic solvent from the emulsion to provide a latex.
Abstract translation: 相转化乳化方法包括将聚酯树脂溶解在包含（1）有机溶剂，（2）总量中和剂的第一部分和（3）第一部分水的混合物中，中和溶解的聚酯树脂 第二部分中和剂，第二部分中和剂包括总量中和剂的剩余量，通过在中和步骤后加入第二部分水形成乳液，并从一部分中除去一部分有机溶剂 乳液以提供胶乳。
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公开(公告)号：US09104123B2
公开(公告)日：2015-08-11
申请号：US13872276
申请日：2013-04-29
Applicant: Xerox Corporation
Inventor： Zhen Lai , Chieh-Min Cheng , Zhaoyang Ou
CPC classification number: G03G9/08 , G03G9/0804 , G03G9/0806 , G03G9/0815 , G03G9/08711 , G03G9/08722 , G03G9/08755 , G03G9/093
Abstract: A washing process using one or more ionic liquids (ILs) as a washing aid agent for toners, including toners produced using such ILs, such as, low melt toners, is provided. ILs are environmentally sound, green solvents that act to swell toner particle surfaces so that surface absorbed and adsorbed pollutants, such as, surfactants and other manufacturing reactants, can be effectively removed. The resulting toners have good charging, charge maintenance and RH sensitivity.
Abstract translation: 提供了使用一种或多种离子液体（ILs）作为调色剂的洗涤助剂的洗涤方法，包括使用这种IL制备的调色剂，例如低熔点调色剂。 ILs是无害环境的绿色溶剂，其用于溶胀调色剂颗粒表面，从而可以有效地除去表面吸收和吸附的污染物质，例如表面活性剂和其它制备反应物。 所得调色剂具有良好的充电，充电维护和RH灵敏度。
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