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公开(公告)号：US11169461B1
公开(公告)日：2021-11-09
申请号：US17030465
申请日：2020-09-24
Applicant: Xerox Corporation , Clarkson University
Inventor： Elizabeth K. Priebe , Christopher Michael Wolfe , Chieh-Min Cheng , Jordan A. Frank , Richard Partch
IPC: G03G9/097
Abstract: According to various embodiments, there is provided a toner composition and a developer. The toner composition includes toner particles including a resin, a colorant, a charge control agent, and a surface additive applied to a surface of the toner particles. The surface additive includes strontium titanate (SrTiO3), silica (SiO2), silicon tetrachloride (SiCl4) and a charge control agent.
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公开(公告)号：US11086243B1
公开(公告)日：2021-08-10
申请号：US16800176
申请日：2020-02-25
Applicant: Xerox Corporation
Inventor： Jordan A. Frank , Daniel W. Asarese , Paul K. Acquaviva , Chieh-Min Cheng , Michael F. Zona , Richard P. N. Veregin
Abstract: A toner composition including a first wax; a second wax that is different from the first wax; wherein the first wax comprises a paraffin wax; wherein the second wax comprises a polymethylene wax; at least one polyester; and an optional colorant.
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公开(公告)号：US09874825B2
公开(公告)日：2018-01-23
申请号：US15464633
申请日：2017-03-21
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：US09809698B2
公开(公告)日：2017-11-07
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.
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公开(公告)号：US09428622B1
公开(公告)日：2016-08-30
申请号：US14695871
申请日：2015-04-24
Applicant: XEROX CORPORATION
Inventor： Yanjia Zuo , Shigeng Li , Chieh-Min Cheng , John L. Pawlak
CPC classification number: C08J3/07 , C08J3/11 , C08J2351/08 , C08J2425/14 , C08J2433/08 , C08L25/14 , C08L33/08 , C08L51/08 , C08L67/00 , G03G9/09328 , G03G9/09364 , G03G9/09378 , G03G9/09385 , G03G9/09392
Abstract: A phase inversion emulsification process includes dissolving a polyester resin and a styrene/acrylate resin in an organic solvent to provide a solution, neutralizing the solution with a neutralizing agent, forming an emulsion by adding 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和苯乙烯/丙烯酸酯树脂溶解在有机溶剂中以提供溶液，用中和剂中和该溶液，通过在中和步骤后加水并除去一部分有机物形成乳液 溶剂从乳液中提供胶乳。
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Patent Agency Ranking
公开(公告)号：US09410037B2
公开(公告)日：2016-08-09
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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77.发明授权公开(公告)号：US09366979B2
公开(公告)日：2016-06-14
申请号：US14245926
申请日：2014-04-04
Applicant: XEROX CORPORATION
Inventor： Shigeng Li , Shigang Qiu , Peter Van Nguyen , Amy Avolia Grillo , Chieh-Min Cheng
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.
Abstract translation: 本公开提供了强大的相转化乳化（PIE）方法，其生产具有高定心能力指数（Cpk）的粒度分布的聚酯胶乳颗粒，用于制备质量好的调色剂。
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78.发明授权Single solvent formulation for preparation of crystalline polyester latex via phase inversion emulsification 有权通过相转化乳化法制备结晶聚酯胶乳的单一溶剂配方公开(公告)号：US09341966B1
公开(公告)日：2016-05-17
申请号：US14576070
申请日：2014-12-18
Applicant: XEROX CORPORATION
Inventor： Yanjia Zuo , Shigeng Li , Peter Nguyen , Chieh-Min Cheng
CPC classification number: G03G9/0806 , C08J3/07 , C08J2367/00 , G03G9/0804 , G03G9/08755 , G03G9/08795 , G03G9/08797
Abstract: A process includes dissolving a polyester resin in a mixture of a single organic solvent, a base and water to form a resin mixture; neutralizing the resin mixture with a neutralizing agent to provide a neutralized resin mixture; adding water to the neutralized resin mixture until phase inversion occurs to form a toner resin emulsion; removing the single solvent to form a polyester latex.
Abstract translation: 一种方法包括将聚酯树脂溶解在单一有机溶剂，碱和水的混合物中以形成树脂混合物; 用中和剂中和树脂混合物以提供中和的树脂混合物; 向中和的树脂混合物中加入水，直至发生相转化，形成调色剂树脂乳液; 除去单一溶剂以形成聚酯胶乳。
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79.发明申请SYSTEM AND METHOD FOR CONVENTIONAL PARTICLE ROUNDING UTILIZING CONTINUOUS EMULSION-AGGREGATION (EA) TECHNOLOGY 有权使用连续乳化聚集（EA）技术的常规颗粒循环的系统和方法公开(公告)号：US20160124331A1
公开(公告)日：2016-05-05
申请号：US14534058
申请日：2014-11-05
Applicant: XEROX CORPORATION
Inventor： Steven M. Malachowski , Eric Joseph Young , Linda Jan , Eric David Godshall , Brian J. Marion , Chieh-Min Cheng
IPC: G03G9/08
CPC classification number: G03G9/081 , G03G9/0804 , G03G9/0815
Abstract: In an exemplary embodiment of the invention, a continuous process for rounding conventional toner particles includes forming a conventional toner particle slurry by mixing a dispersant and/or a liquid with dry toner particles, heating the conventional toner particle slurry to a first temperature beyond its glass transition temperature to form a coalesced toner particle slurry, quenching the coalesced toner particle slurry to a second temperature below the glass transition temperature after a residence time has elapsed, and recovering the quenched particle slurry at an outlet wherein the circularity of the conventional toner particles in the quenched toner particle slurry is from approximately 0.940 to 0.999 and the time frame for the heating, quenching and recovering steps is less than 20 minutes. An apparatus for practicing the novel continuous coalescence of toner particles, includes an inlet passage, a first heat exchanger coupled to the inlet passage, a residence time coil coupled to the first heat exchanger, a cooling device coupled to the residence time coil; and an outlet passage coupled to the cooling device.
Abstract translation: 在本发明的示例性实施方案中，用于对常规调色剂颗粒进行四舍五入的连续方法包括通过将分散剂和/或液体与干调色剂颗粒混合来形成常规调色剂颗粒浆料，将常规调色剂颗粒浆料加热至超过其玻璃的第一温度 转变温度以形成聚结的调色剂颗粒浆料，在经过停留时间之后将聚结的调色剂颗粒骤冷至低于玻璃化转变温度的第二温度，并在出口处回收淬火的颗粒浆料，其中常规调色剂颗粒的圆度 淬火后的调色剂颗粒浆料约为0.940至0.999，加热，淬火和回收步骤的时间范围小于20分钟。 用于实施调色剂颗粒的新型连续聚结的装置包括入口通道，耦合到入口通道的第一热交换器，耦合到第一热交换器的停留时间线圈，耦合到停留时间线圈的冷却装置; 以及联接到冷却装置的出口通道。
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公开(公告)号：US09280075B1
公开(公告)日：2016-03-08
申请号：US14527111
申请日：2014-10-29
Applicant: XEROX CORPORATION
Inventor： Yanjia Zuo , Yulin Wang , Shigeng Li , Peter Nguyen , Chieh-Min Cheng , John L. Pawlak
CPC classification number: G03G9/09364 , G03G9/0802 , G03G9/09328
Abstract: A process includes dissolving a styrene/acrylate resin in an organic solvent to form a first solution, dissolving at least one polyester resin in the first solution to form a second solution, neutralizing the second solution with a base to provide a neutralized solution, and adding a sufficient amount of water to the neutralized solution to form an emulsion. A latex particle includes a polyester resin and a styrene/acrylate resin dispersed within the latex particle, the surface of the latex particle is substantially the polyester resin. A toner includes a plurality of toner particles prepared from a latex, the particles of the latex including a polyester resin and a styrene/acrylate resin dispersed within each latex particle, the surface of each latex particle is substantially the polyester resin.
Abstract translation: 一种方法包括将苯乙烯/丙烯酸酯树脂溶解在有机溶剂中以形成第一溶液，将至少一种聚酯树脂溶解在第一溶液中形成第二溶液，用碱中和第二溶液以提供中和溶液，并加入 向中和的溶液中加入足量的水以形成乳液。 胶乳颗粒包括分散在胶乳颗粒内的聚酯树脂和苯乙烯/丙烯酸酯树脂，胶乳颗粒的表面基本上是聚酯树脂。 调色剂包括由胶乳制备的多个调色剂颗粒，所述胶乳颗粒包括分散在每个胶乳颗粒内的聚酯树脂和苯乙烯/丙烯酸酯树脂，每个胶乳颗粒的表面基本上是聚酯树脂。
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