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公开(公告)号：US09639013B2
公开(公告)日：2017-05-02
申请号：US13856496
申请日：2013-04-04
Applicant: Xerox Corporation
Inventor： Joo T. Chung , Chieh-Min Cheng , Steven M. Malachowski , Eric Joseph Young , Eric David Godshall , Brian Joseph Marion
IPC: G03G9/08
CPC classification number: G03G9/081 , B01F3/1221 , B01F3/20 , B01F7/087 , B01F2215/0059 , B01F2215/0422 , B01F2215/0427 , B01F2215/0477 , G03G9/08 , G03G9/0819 , G03G9/0827
Abstract: Processes for continuously coalescing particles from an aggregated particle slurry are disclosed. The aggregated particle slurry is heated, then coalesced by raising the pH. The coalesced particles are homogenized and exit as a coalesced particle slurry. A multi-screw extruder is used for the coalescing. These processes are useful for providing coalesced particles such as toner compositions.
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公开(公告)号：US20160362538A1
公开(公告)日：2016-12-15
申请号：US14737440
申请日：2015-06-11
Applicant: Xerox Corporation
Inventor： Shigeng Li , Yanjia Zuo , Chieh-Min Cheng
CPC classification number: G03G9/0817
Abstract: A process directed to emulsion polymerization (EP) methods for producing seed particles reproducibly independent of initiator amount and rate of introduction.
Abstract translation: 一种针对乳液聚合（EP）方法的方法，用于重复地生产种子颗粒，独立于引发剂的量和引入速率。
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公开(公告)号：US20160246191A1
公开(公告)日：2016-08-25
申请号：US15142686
申请日：2016-04-29
Applicant: XEROX CORPORATION
Inventor： Shigeng Li , Shigang Qiu , Peter Van Nguyen , Amy Avolia Grillo , Chieh-Min Cheng
IPC: G03G9/08
CPC classification number: G03G9/0819 , G03G9/0804 , G03G9/08795 , G03G9/08797
Abstract: The disclosure provides robust phase inversion emulsification (PIE) processes, which produces polyester latex particles having particle size distributions with high centering capability indexes (Cpk), for the preparation of toners of good quality.
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公开(公告)号：US09400440B2
公开(公告)日：2016-07-26
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：US20160139520A1
公开(公告)日：2016-05-19
申请号：US14540284
申请日：2014-11-13
Applicant: Xerox Corporation
Inventor： Shigeng Li , Peter V. Nguyen , Judith M. Vandewinckel , Amy A. Grillo , Chieh-Min Cheng
CPC classification number: G03G9/0804
Abstract: A process for making colored polyester latex by phase inversion emulsification is described.
Abstract translation: 描述了通过相转化乳化制备着色聚酯胶乳的方法。
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Patent Agency Ranking
公开(公告)号：US09298117B2
公开(公告)日：2016-03-29
申请号：US14166232
申请日：2014-01-28
Applicant: XEROX CORPORATION
Inventor： Zhen Lai , Chieh-Min Cheng
CPC classification number: G03G9/0804 , C08J3/07 , C08J2367/02 , C08K3/26 , C08K2003/262 , G03G9/0806 , G03G9/08755 , G03G9/08795 , G03G9/08797 , C08L67/00
Abstract: Methods herein include mixing at least one polyester resin with at least one solvent to form a resin mixture, adding water to cause phase inversion and form a polyester latex, adding at least one buffering agent to the phase inverted mixture to stabilize the phase inverted mixture, and subsequent to the buffering agent addition, substantially removing the at least one solvent from the phase inverted mixture.
Abstract translation: 本文的方法包括将至少一种聚酯树脂与至少一种溶剂混合以形成树脂混合物，加入水引起相转化并形成聚酯胶乳，向相转化的混合物中加入至少一种缓冲剂以稳定相转化的混合物， 并且在缓冲剂添加之后，基本上从反相混合物中除去至少一种溶剂。
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27.发明申请公开(公告)号：US20150125621A1
公开(公告)日：2015-05-07
申请号：US14071505
申请日：2013-11-04
Applicant: XEROX CORPORATION
Inventor： Joo T. Chung , Bernard A. Kelly , Brian S. Giannetto , Chieh-Min Cheng , Thomas C. Dombroski
IPC: C23C18/04
CPC classification number: B22F1/0062 , B22F2202/13
Abstract: The disclosure relates to processes of preparing coated carrier particles by means of plasma activation and apparatus for use thereof.
Abstract translation: 本公开涉及通过等离子体激活及其使用的装置制备涂覆载体颗粒的方法。
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公开(公告)号：US20150111148A1
公开(公告)日：2015-04-23
申请号：US14057137
申请日：2013-10-18
Applicant: Xerox Corporation
Inventor： David JW Lawton , Chieh-Min Cheng , David R. Kurceba , Eric J. Young
IPC: G03G9/08
CPC classification number: G03G9/0825 , G03G9/0804 , G03G9/0819 , G03G9/08755 , G03G9/08797 , Y10T428/2982
Abstract: Porous resin particles of from about 3 μm to about 25 μm size made in an emulsion aggregation process where coalescence occurs under continuous conditions which enable, for example, more rapid coalescence, are described.
Abstract translation: 描述了在乳液聚集过程中制备的约3μm至约25μm尺寸的多孔树脂颗粒，其中聚合在连续条件下发生，其能够例如更快速的聚结。
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公开(公告)号：US20140303298A1
公开(公告)日：2014-10-09
申请号：US13856568
申请日：2013-04-04
Applicant: XEROX CORPORATION
Inventor： Joo T. Chung , Chieh-Min Cheng
IPC: C08K13/02
CPC classification number: C08K13/02 , B01F3/0807 , B01F7/022 , B01F7/082 , B01F7/085 , B01F15/065 , B01F2015/062 , C08J3/07 , C08J2367/00 , G03G9/0804 , G03G9/08755
Abstract: Processes for continuously producing latex emulsions are disclosed. A multi-screw extruder is used for the production of the emulsion. A resin is fed into the extruder, heated, optionally dissolved in a solvent, mixed with a base to neutralize the resin and form particles, then mixed with a surfactant and water to form a phase inverted emulsion (PIE). The PIE may be sent to a distillation column to separate out the solvent, and the resulting latex emulsion is then sent to a receiving tank. These processes are useful for making precursors for toner compositions.
Abstract translation: 公开了连续生产胶乳乳液的方法。 使用多螺杆挤出机来生产乳液。 将树脂加入到挤出机中，加热，任选地溶解在溶剂中，与碱混合以中和树脂并形成颗粒，然后与表面活性剂和水混合以形成相转移乳液（PIE）。 可将PIE送至蒸馏塔以分离溶剂，然后将所得的胶乳乳液送至接收罐。 这些方法可用于制备调色剂组合物的前体。
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公开(公告)号：US20130302729A1
公开(公告)日：2013-11-14
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.
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