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    TONER PARTICLES HAVING AN INCREASED SURFACE HARDNESS AND TONERS THEREOF
    51.
    发明申请
    TONER PARTICLES HAVING AN INCREASED SURFACE HARDNESS AND TONERS THEREOF 审中-公开
    具有增加的表面硬度的调色剂颗粒及其调色剂

    公开(公告)号：US20140335451A1

    公开(公告)日：2014-11-13

    申请号：US13890152

    申请日：2013-05-08

    Applicant: XEROX CORPORATION

    Inventor： Joo T. Chung ,  Jay L. Schneider ,  Chieh-Min Cheng ,  Christopher Wolfe ,  Angela Schnuerch

    IPC: G03G9/093

    CPC classification number: G03G9/09328 ,  G03G9/09392

    Abstract: The present embodiments relate to toner particles having an increased surface hardness, and toners comprising said toner particles. More specifically, the present embodiments relate to toner particles having an average surface hardness of from about 130 mPa to about 250 mPa, comprising a core surrounded by a shell, wherein the shell comprises a crystalline resin.

    Abstract translation: 本实施例涉及具有增加的表面硬度的调色剂颗粒和包含所述调色剂颗粒的调色剂。 更具体地说，本实施例涉及平均表面硬度为约130mPa至约250mPa的调色剂颗粒，其包含被壳包围的芯，其中壳包含结晶树脂。

    SEEDED EMULSION POLYMERIZATION PROCESS FOR LATEXES AND AQUEOUS INKJET INK COMPOSITIONS MADE THEREFROM
    53.
    发明申请
    SEEDED EMULSION POLYMERIZATION PROCESS FOR LATEXES AND AQUEOUS INKJET INK COMPOSITIONS MADE THEREFROM 有权

    公开(公告)号：US20220380586A1

    公开(公告)日：2022-12-01

    申请号：US17329357

    申请日：2021-05-25

    Applicant: Xerox Corporation

    Inventor： Chunliang Lu ,  Valerie Kuykendall ,  Chieh-Min Cheng

    IPC: C08L25/14

    Abstract: Methods for forming latexes are provided. In embodiments, such a method comprises adding a first portion of a monomer emulsion comprising water, a monomer, an acidic monomer, a multifunctional monomer, and a first reactive surfactant to a reactive surfactant solution comprising water and a second reactive surfactant to form a reaction mixture, wherein the reactive surfactant solution does not comprise monomers other than the second reactive surfactant; adding a first portion of an initiator solution to the reaction mixture so that monomers undergo polymerization reactions to form resin seeds in the reaction mixture; adding a second portion of the monomer emulsion to the reaction mixture comprising the resin seeds; and adding a second portion of the initiator solution to the reaction mixture to form a latex comprising resin particles.

    Toner Including Toner Additive Formulation
    54.
    发明申请
    Toner Including Toner Additive Formulation 有权

    公开(公告)号：US20210263435A1

    公开(公告)日：2021-08-26

    申请号：US16800118

    申请日：2020-02-25

    Applicant: Xerox Corporation

    Inventor： Richard P. N. Veregin ,  Michael F. Zona ,  Jordan A. Frank ,  Daniel W. Asarese ,  Paul K. Acquaviva ,  Chieh-Min Cheng

    IPC: G03G9/087 ,  G03G9/093 ,  G03G9/08 ,  G03G9/097

    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 silica surface 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.

    Toner including toner additive formulation
    55.
    发明授权
    Toner including toner additive formulation 有权

    公开(公告)号：US11092906B1

    公开(公告)日：2021-08-17

    申请号：US16800118

    申请日：2020-02-25

    Applicant: Xerox Corporation

    Inventor： Richard P. N. Veregin ,  Michael F. Zona ,  Jordan A. Frank ,  Daniel W. Asarese ,  Paul K. Acquaviva ,  Chieh-Min Cheng

    IPC: G03G9/08 ,  G03G9/087 ,  G03G9/093 ,  G03G9/097

    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 silica surface 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.

    Cold wax dispersion process
    56.
    发明授权
    Cold wax dispersion process 有权

    公开(公告)号：US10175593B2

    公开(公告)日：2019-01-08

    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

    IPC: B02C23/12 ,  G03G9/08 ,  G03G9/087

    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.

    System and method for conventional particle rounding utilizing continuous emulsion-aggregation (EA) technology
    60.
    发明授权
    System and method for conventional particle rounding utilizing continuous emulsion-aggregation (EA) technology 有权
    使用连续乳液聚集（EA）技术的常规颗粒倒圆的系统和方法

    公开(公告)号：US09372421B2

    公开(公告)日：2016-06-21

    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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