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    Toner processes
    12.
    发明授权
    Toner processes 失效
    墨粉处理

    公开(公告)号：US06899987B2

    公开(公告)日：2005-05-31

    申请号：US10393635

    申请日：2003-03-20

    申请人： Daryl Vanbesien ,  Raj D. Patel ,  Michael A. Hopper ,  Stephan V. Drappel

    发明人： Daryl Vanbesien ,  Raj D. Patel ,  Michael A. Hopper ,  Stephan V. Drappel

    IPC分类号： G03G9/08 ,  C03J3/215

    CPC分类号： G03G9/0804 ,  G03G9/0806

    摘要： A process for the preparation of toner by, for example, mixing a latex with a colorant mixture comprised of colorant, an ionic surfactant, and a polytetrafluoroethylene; adding a coagulant; heating the resulting mixture below about the glass transition temperature (Tg) of the latex resin; adding a stabilizer; heating above about the Tg of the latex resin; and isolating the toner.

    摘要翻译： 通过例如将胶乳与由着色剂，离子表面活性剂和聚四氟乙烯组成的着色剂混合物混合来制备调色剂的方法; 加入凝结剂; 将所得混合物加热至胶乳树脂的玻璃化转变温度（Tg）以下; 添加稳定剂; 加热高于胶乳树脂的Tg; 并分离调色剂。

    Toner processes
    15.
    发明授权
    Toner processes 失效
    墨粉处理

    公开(公告)号：US6130021A

    公开(公告)日：2000-10-10

    申请号：US58872

    申请日：1998-04-13

    申请人： Raj D. Patel ,  Michael A. Hopper

    发明人： Raj D. Patel ,  Michael A. Hopper

    IPC分类号： G03G9/08

    CPC分类号： G03G9/0804 ,  G03G9/0819 ,  G03G9/0825

    摘要： A process involving the mixing of a latex emulsion containing resin and a surfactant with a colorant dispersion containing a nonionic surfactant, and a polymeric additive and adjusting the resulting mixture pH to less than about 4 by the addition of an acid and thereafter heating at a temperature below about, or equal to about the glass transition temperature (Tg) of the latex resin, subsequently heating at a temperature above about, or about equal to the Tg of the latex resin, cooling to about room temperature, and isolating the toner product.

    摘要翻译： 包括将含有树脂和表面活性剂的胶乳乳液与含有非离子表面活性剂的着色剂分散体和聚合物添加剂混合的方法，并通过加入酸将所得混合物pH调节至小于约4，然后在温度 低于约或约等于胶乳树脂的玻璃化转变温度（Tg），随后在高于约或约等于胶乳树脂的Tg的温度下加热冷却至约室温，并分离调色剂产物。

    Toner grafting processes
    17.
    发明授权
    Toner grafting processes 失效
    调色剂接枝工艺

    公开(公告)号：US5650252A

    公开(公告)日：1997-07-22

    申请号：US669118

    申请日：1996-06-24

    申请人： T. Hwee Ng ,  Arthur Helbrecht ,  Raj D. Patel ,  Michael A. Hopper ,  Richard P. N. Veregin

    发明人： T. Hwee Ng ,  Arthur Helbrecht ,  Raj D. Patel ,  Michael A. Hopper ,  Richard P. N. Veregin

    IPC分类号： G03G9/08 ,  G03G9/087

    CPC分类号： G03G9/0804 ,  G03G9/0806 ,  G03G9/0815

    摘要： A process for the preparation of toner comprising:(i) preparing a pigment dispersion, which dispersion is comprised of a pigment, an ionic surfactant, and optionally a charge control agent;(ii) shearing said pigment dispersion with a latex or emulsion blend comprised of resin, a counterionic surfactant with a charge polarity of opposite sign to that of said ionic surfactant and a nonionic surfactant;(iii) heating the above sheared blend below about the glass transition temperature (Tg) of the resin to form electrostatically bound toner size aggregates with a narrow particle size distribution;(iv) heating said bound aggregates above about the Tg of the resin; and(v) thereafter washing the toner obtained, adding initiator, adding monomer, polymerizing by heating, and thereafter cooling, followed by an optional second washing.

    摘要翻译： 一种制备调色剂的方法，包括：（i）制备颜料分散体，该分散体由颜料，离子表面活性剂和任选的电荷控制剂组成; （ii）用由树脂，具有与所述离子表面活性剂的电荷极性相反的电荷极性的抗衡离子表面活性剂和非离子表面活性剂的胶乳或乳液共混物剪切所述颜料分散体; （iii）将上述剪切混合物加热至低于树脂的玻璃化转变温度（Tg），以形成具有窄粒度分布的静电结合的调色剂尺寸聚集体; （iv）将所述结合的聚集体加热到树脂的Tg附近; 和（v）然后洗涤所获得的调色剂，加入引发剂，加入单体，通过加热进行聚合，然后冷却，然后进行任选的第二次洗涤。

    Toner aggregation processes
    18.
    发明授权
    Toner aggregation processes 失效
    调色剂聚合过程

    公开(公告)号：US5525452A

    公开(公告)日：1996-06-11

    申请号：US497988

    申请日：1995-07-03

    申请人： Michael A. Hopper ,  Raj D. Patel ,  Grazyna E. Kmiecik-Lawrynowicz

    发明人： Michael A. Hopper ,  Raj D. Patel ,  Grazyna E. Kmiecik-Lawrynowicz

    IPC分类号： G03G9/08 ,  G03G9/087

    CPC分类号： G03G9/0815 ,  G03G9/0804

    摘要： A process for the preparation of toner compositions comprising (i) preparing a pigment dispersion in water, which dispersion is comprised of a pigment, an ionic surfactant, and optionally a charge control agent;(ii) shearing said pigment dispersion with an aqueous latex or emulsion blend comprised of a nonionic surfactant, resin, and a counterionic surfactant with a charge polarity of opposite sign to that of said ionic surfactant;(iii) heating the above sheared blend below about the glass transition temperature (Tg) of the resin to form electrostatically bound toner size aggregates with a narrow particle size distribution;(iv) heating the electrostatically bound aggregates above about the Tg of the resin, which heating is accomplished at a pH of from about 4.0 to about 6.0 while continuously stirring the electrostatically bound aggregates to form toner particles;(v) washing the toner particles with a basic aqueous solution, which solution is of a pH of from between about 10.0 and about 12.0; and thereafter optionally(iv) separating the toner particles from the emulsion blend containing water by filtration and then drying the toner particles.

    摘要翻译： 一种制备调色剂组合物的方法，包括（i）在水中制备颜料分散体，该分散体由颜料，离子表面活性剂和任选的电荷控制剂组成; （ii）用包含非离子表面活性剂，树脂和抗衡离子表面活性剂的水性胶乳或乳液共混物剪切所述颜料分散体，其电荷极性与所述离子表面活性剂相反; （iii）将上述剪切混合物加热至低于树脂的玻璃化转变温度（Tg），以形成具有窄粒度分布的静电结合的调色剂尺寸聚集体; （iv）将高于约树脂Tg的静电结合聚集体加热，在约4.0至约6.0的pH下进行加热，同时连续搅拌静电结合的聚集体以形成调色剂颗粒; （v）用碱性水溶液洗涤调色剂颗粒，该溶液的pH为约10.0至约12.0; 然后任选地（iv）通过过滤从含有水的乳液共混物中分离调色剂颗粒，然后干燥调色剂颗粒。

    Wax Containing toner aggregation processes
    19.
    发明授权
    Wax Containing toner aggregation processes 失效
    蜡含有调色剂聚集工艺

    公开(公告)号：US5482812A

    公开(公告)日：1996-01-09

    申请号：US344060

    申请日：1994-11-23

    申请人： Michael A. Hopper ,  Raj D. Patel ,  Grazyna E. Kmiecik-Lawrynowicz ,  Stephan V. Drappel ,  Paul J. Gerroir

    发明人： Michael A. Hopper ,  Raj D. Patel ,  Grazyna E. Kmiecik-Lawrynowicz ,  Stephan V. Drappel ,  Paul J. Gerroir

    IPC分类号： G03G9/08 ,  G03G9/087

    CPC分类号： G03G9/0804 ,  G03G9/0815

    摘要： A process for the preparation of toner compositions or toner particles comprising:(i) providing an aqueous pigment dispersion comprised of a pigment, an ionic surfactant, and optionally a charge control agent;(ii) providing a wax dispersion comprised of wax, a dispersant comprised of nonionic surfactant, ionic surfactant or mixtures thereof;(iii) shearing a mixture of the wax dispersion and the pigment dispersion with a latex or emulsion blend comprised of resin, a counterionic surfactant with a charge polarity of opposite sign to that of said ionic surfactant and a nonionic surfactant;(iv) heating the above sheared blend below about the glass transition temperature (Tg) of the resin to form electrostatically bound toner size aggregates with a narrow particle size distribution;(v) adding additional ionic surfactant to the aggregated suspension of (iv) to ensure that no, or minimal additional particle growth of the electrostatically bound toner size aggregates occurs on further increasing the temperature to coalesce the aggregates into toner particles (vi);(vi) heating the mixture of (v) with bound aggregates above about or at the Tg of the resin; and optionally(vii) separating the toner particles from the aqueous slurry by filtration and thereafter optionally washing.

    摘要翻译： 一种制备调色剂组合物或调色剂颗粒的方法，包括：（i）提供由颜料，离子表面活性剂和任选的电荷控制剂组成的水性颜料分散体; （ii）提供由蜡组成的蜡分散体，由非离子表面活性剂，离子表面活性剂或其混合物组成的分散剂; （iii）用由树脂，具有与所述离子表面活性剂的电荷极性相反的电荷极性的抗衡离子表面活性剂和非离子表面活性剂组成的胶乳或乳液共混物来剪切蜡分散体和颜料分散体的混合物; （iv）将上述剪切混合物加热至低于树脂的玻璃化转变温度（Tg），以形成具有窄粒度分布的静电结合的调色剂尺寸聚集体; （v）向（iv）的聚集悬浮液中加入另外的离子表面活性剂，以确保在进一步升高温度以使聚集体聚结成调色剂颗粒（vi）时，静电结合的调色剂尺寸聚集体不会发生或最小的附加颗粒生长。 （vi）将（v）混合物加热至高于树脂Tg或高于Tg的结合聚集体; 并且任选地（vii）通过过滤从调色剂颗粒与含水浆料分离，然后任选地洗涤。

    Toner aggregation process
    20.
    发明授权
    Toner aggregation process 失效
    调色剂聚合过程

    公开(公告)号：US5370964A

    公开(公告)日：1994-12-06

    申请号：US158343

    申请日：1993-11-29

    申请人： Raj D. Patel ,  Grazyna E. Kmiecik-Lawrynowicz ,  Michael A. Hopper ,  Melvin D. Croucher ,  T. Hwee Ng ,  William J. Dale

    发明人： Raj D. Patel ,  Grazyna E. Kmiecik-Lawrynowicz ,  Michael A. Hopper ,  Melvin D. Croucher ,  T. Hwee Ng ,  William J. Dale

    IPC分类号： G03G9/08

    CPC分类号： G03G9/0815 ,  G03G9/0804

    摘要： A process for the preparation of toner comprising:(i) preparing a pigment dispersion in water, which dispersion is comprised of pigment, an ionic surfactant, and an optional charge control agent;(ii) shearing the pigment dispersion with a polymeric latex comprised of resin, a counterionic surfactant with a charge polarity of opposite sign to that of said ionic surfactant, and which latex contains a nonionic surfactant thereby forming a homogeneous or a uniform blend;(iii) heating the above sheared homogeneous blend below about the glass transition temperature (Tg) of the resin to form electrostatically bound toner size aggregates;(iv) reshearing the above electrostatically bound toner aggregates (iii) to fragment or break down said toner aggregates of (iii) into smaller average diameter particle size;(v) heating the resulting formed sheared homogeneous blend (iv) comprised of resin, pigment particles, and the ionic, counterionic and nonionic surfactants in water below about the glass transition temperature (Tg) of the resin while continuously stirring at about 450 to about 800 revolutions per minute to form electrostatically bound toner size aggregates with a narrow particle size distribution;(vi) adding further ionic or nonionic surfactant in an amount of from about 0.1 to about 10 percent by weight of water to minimize further growth or enlargement of the particles in the coalescence step (vii); and(vii) heating the formed statically bound aggregated particles of (vi) about above the Tg of the resin to provide coalesced particles of toner(viii) separating said toner; and(ix) drying said toner.

    摘要翻译： 一种制备调色剂的方法，包括：（i）在水中制备颜料分散体，该分散体由颜料，离子表面活性剂和任选的电荷控制剂组成; （ii）用由树脂，具有与所述离子表面活性剂的电荷极性相反的电荷极性的抗衡离子表面活性剂的聚合胶乳剪切颜料分散体，并且该胶乳含有非离子表面活性剂，从而形成均匀或均匀的共混物; （iii）在树脂的玻璃化转变温度（Tg）附近加热上述剪切均匀混合物以形成静电结合的调色剂尺寸聚集体; （iv）重新研磨上述静电结合的调色剂聚集体（iii）以将（iii）的所述调色剂聚集体碎裂或分解成更小的平均直径粒径; （v）在低于约玻璃化转变温度（Tg）的树脂下，将所形成的由树脂，颜料颗粒和离子型，抗衡离子和非离子表面活性剂组成的剪切的均匀混合物（iv）加热至约450至约 800转/分钟，形成具有窄粒度分布的静电结合的调色剂尺寸聚集体; （vi）以约0.1至约10重量％的水加入另外的离子或非离子表面活性剂以最小化在聚结步骤（vii）中颗粒的进一步生长或增大; （vii）将所形成的静态结合的（vi）聚集的颗粒加热到树脂的Tg附近，以提供聚结的调色剂颗粒（viii）分离所述调色剂; 和（ix）干燥所述调色剂。