知搜-全球专利检索

  1. 登录
  2. 注册

搜索结果

143 条记录 (耗时 0.028 秒)

    Low shear toner aggregation processes
    21.
    发明授权
    Low shear toner aggregation processes 失效
    低剪切调色剂聚集工艺

    公开(公告)号：US5650255A

    公开(公告)日：1997-07-22

    申请号：US706880

    申请日：1996-09-03

    申请人： T. Hwee Ng ,  Arthur Helbrecht ,  Raj D. Patel ,  Grazyna E. Kmiecik-Lawrynowicz ,  David Kurceba ,  Francisco E. Torres ,  David J. Sanders

    发明人： T. Hwee Ng ,  Arthur Helbrecht ,  Raj D. Patel ,  Grazyna E. Kmiecik-Lawrynowicz ,  David Kurceba ,  Francisco E. Torres ,  David J. Sanders

    IPC分类号： G03G9/08 ,  G03G9/087

    CPC分类号： G03G9/0804 ,  G03G9/0819

    摘要： An in situ chemical process for the preparation of toner comprised of(i) the provision of a latex, which latex is comprised of polymeric resin particles, an ionic surfactant and a nonionic surfactant;(ii) providing a pigment dispersion, which dispersion is comprised of a pigment solution, a counterionic surfactant with a charge polarity of opposite sign to that of said ionic surfactant, and optionally a charge control agent;(iii) mixing said pigment dispersion with said latex with a stirrer equipped with an impeller, stirring at speeds of from about 100 to about 900 rpm for a period of from about 10 minutes to about 150 minutes;(iv) heating the above resulting blend of latex and pigment mixture to a temperature below about the glass transition temperature (Tg) of the resin to form electrostatically bound toner size aggregates;(v) adding further aqueous ionic surfactant or stabilizer in the range amount of from about 0.1 percent to 5 percent by weight of reactants to stabilize the above electrostatically bound toner size aggregates;(vi) heating said electrostatically bound toner sized aggregates above about the Tg of the resin to form toner size particles containing pigment, resin and optionally a charge control agent;(vii) optionally isolating said toner, optionally washing with water; and optionally(viii) drying said toner.

    摘要翻译： 用于制备调色剂的原位化学方法包括（i）提供胶乳，所述胶乳由聚合树脂颗粒，离子表面活性剂和非离子表面活性剂组成; （ii）提供颜料分散体，该分散体由颜料溶液，具有与所述离子表面活性剂相反的电荷极性的反离子表面活性剂和任选的电荷控制剂组成; （iii）将所述颜料分散体与所述胶乳混合，配备有叶轮的搅拌器，以约100至约900rpm的速度搅拌约10分钟至约150分钟; （iv）将上述胶乳和颜料混合物的混合物加热到低于树脂的玻璃化转变温度（Tg）的温度，以形成静电结合的调色剂尺寸聚集体; （v）加入其量为约0.1％至5％（重量）的反应物的水性离子表面活性剂或稳定剂，以稳定上述静电结合的调色剂尺寸聚集体; （vi）将所述静电结合的调色剂大小的聚集体加热到树脂的Tg附近，以形成含有颜料，树脂和任选的电荷控制剂的调色剂尺寸颗粒; （vii）任选地分离所述调色剂，任选地用水洗涤; 和（viii）干燥所述调色剂。

    Fluorescent toner processes
    22.
    发明授权
    Fluorescent toner processes 失效
    荧光调色剂工艺

    公开(公告)号：US5554480A

    公开(公告)日：1996-09-10

    申请号：US299392

    申请日：1994-09-01

    申请人： Raj D. Patel ,  H. Bruce Goodbrand ,  Grazyna E. Kmiecik-Lawrynowicz ,  Michael A. Hopper ,  Melvin D. Croucher ,  James M. Duff

    发明人： Raj D. Patel ,  H. Bruce Goodbrand ,  Grazyna E. Kmiecik-Lawrynowicz ,  Michael A. Hopper ,  Melvin D. Croucher ,  James M. Duff

    IPC分类号： G03G9/08 ,  G03G9/09 ,  G03G9/087

    CPC分类号： G03G9/0804 ,  G03G9/0926

    摘要： A process for the preparation of fluorescent toner compositions comprising(i) preparing a pigment dispersion in a solvent, which dispersion is comprised of a pigment or dye, an ionic surfactant and optionally a charge control agent;(ii) shearing the pigment dispersion with a latex mixture comprised of a counterionic surfactant with a charge polarity of opposite sign to that of said ionic surfactant, a nonionic surfactant and resin particles, thereby causing a flocculation or heterocoagulation of pigment, resin particles and charge control agent to form electrostatically bound toner size aggregates; and(iii) heating the statically bound aggregated particles to form said toner composition comprised of polymeric resin, pigment and optionally a charge control agent, and wherein the pigment or dye is excitable by ultraviolet light in the frequency range of from about 254 to about 366 nanometers and fluoresces in the visible spectrum of from about 400 to about 700 nanometers.

    摘要翻译： 一种制备荧光调色剂组合物的方法，包括（i）在溶剂中制备颜料分散体，该分散体由颜料或染料，离子表面活性剂和任选的电荷控制剂组成; （ii）用包含与所述离子表面活性剂相反的电荷极性的反离子表面活性剂，非离子表面活性剂和树脂颗粒的胶乳混合物剪切颜料分散体，从而引起颜料，树脂颗粒和电荷的絮凝或杂合 控制剂形成静电结合的调色剂尺寸聚集体; 和（iii）加热静态结合的聚集颗粒以形成由聚合物树脂，颜料和任选的电荷控制剂组成的所述调色剂组合物，并且其中颜料或染料可以通过紫外光在约254至约366的频率范围内激发 纳米，并且在约400至约700纳米的可见光谱中发荧光。

    Toner aggregation and coalescence processes
    23.
    发明授权
    Toner aggregation and coalescence processes 失效
    调色剂聚集和聚结过程

    公开(公告)号：US5403693A

    公开(公告)日：1995-04-04

    申请号：US83157

    申请日：1993-06-25

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

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

    IPC分类号： G03G9/087 ,  G03G9/08 ,  G03G9/09 ,  G03G9/097

    CPC分类号： G03G9/0815 ,  G03G9/0804 ,  G03G9/0812 ,  Y10S528/936

    摘要： A process for the preparation of toner compositions with controlled particle size comprising:(i) preparing a pigment dispersion in water, which dispersion is comprised of a pigment, an ionic surfactant in amounts of from about 0.5 to about 10 percent by weight of water, and an optional charge control agent;(ii) shearing the pigment dispersion with a latex mixture comprised of a counterionic surfactant with a charge polarity of opposite sign to that of said ionic surfactant, a nonionic surfactant, and resin particles, thereby causing a flocculation or heterocoagulation of the formed particles of pigment, resin, and charge control agent;(iii) stirring the resulting sheared viscous mixture of (ii) at from about 300 to about 1,000 revolutions per minute to form electrostatically bound substantially stable toner size aggregates with a narrow particle size distribution;(iv) reducing the stirring speed in (iii) to from about 100 to about 600 revolutions per minute, and subsequently adding further anionic or nonionic surfactant in the range of from about 0.1 to about 10 percent by weight of water to control, prevent, or minimize further growth or enlargement of the particles in the coalescence step (iii); and(v) heating and coalescing from about 5 to about 50.degree. C. above about the resin glass transition temperature, Tg, which resin Tg is from between about 45.degree. C. to about 90.degree. C. and preferably from between about 50.degree. C. and about 80.degree. C. the statically bound aggregated particles to form said toner composition comprised of resin, pigment and optional charge control agent.

    摘要翻译： 一种用于制备具有受控粒度的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，约0.5至约10重量％的水的离子表面活性剂， 和可选的电荷控制剂; （ii）用包含与所述离子表面活性剂相反电荷极性的反离子表面活性剂，非离子表面活性剂和树脂颗粒的胶体混合物剪切颜料分散体，从而引起所形成的颜料颗粒的絮凝或异凝 ，树脂和电荷控制剂; （iii）以约300至约1,000转/分钟搅拌得到的（ii）剪切粘稠混合物以形成具有窄粒度分布的静电粘合的基本上稳定的调色剂尺寸聚集体; （iv）将（iii）中的搅拌速度降低至约100至约600转/分钟，随后加入约0.1至约10重量％的水的其它阴离子或非离子表面活性剂以控制， 或最小化在聚结步骤（iii）中的颗粒的进一步生长或增大; 和（v）在树脂玻璃化转变温度Tg以上高于约5至约50℃加热和聚结，该树脂Tg为约45℃至约90℃，优选为约50℃ C.和约80℃的静态结合聚集的颗粒以形成由树脂，颜料和任选的电荷控制剂组成的所述调色剂组合物。

    Toner compositions
    24.
    发明授权
    Toner compositions 失效
    调色剂组合物

    公开(公告)号：US5348832A

    公开(公告)日：1994-09-20

    申请号：US69792

    申请日：1993-06-01

    申请人： Guerino G. Sacripante ,  Raj D. Patel ,  Grazyna E. Kmiecik-Lawrynowicz

    发明人： Guerino G. Sacripante ,  Raj D. Patel ,  Grazyna E. Kmiecik-Lawrynowicz

    IPC分类号： C08G63/688 ,  G03G9/087

    CPC分类号： C08G63/6886 ,  G03G9/08755

    摘要： A toner composition comprised of pigment, and a sulfonated polyester of the formula or as essentially represented by the formula ##STR1## wherein M is an ion independently selected from the group consisting of hydrogen, ammonium, an alkali metal ion, an alkaline earth metal ion and a metal ion; R is independently selected from the group consisting of aryl and alkyl; R' is independently selected from the group consisting of alkyl and oxyalkylene; and wherein n and o represent random segments; and wherein the sum of n and o are equal to 100 mole percent.

    摘要翻译： 由颜料组成的调色剂组合物和下式的磺化聚酯或基本上由式（I）表示的其中M是独立地选自氢，铵，碱金属离子，碱土金属离子的离子 和金属离子; R独立地选自芳基和烷基; R'独立地选自烷基和氧化烯; 并且其中n和o表示随机区段; 并且其中n和o的和等于100摩尔％。

    Toner processes
    25.
    发明授权
    Toner processes 失效
    墨粉处理

    公开(公告)号：US5346797A

    公开(公告)日：1994-09-13

    申请号：US22575

    申请日：1993-02-25

    申请人： Grazyna E. Kmiecik-Lawrynowicz ,  Raj D. Patel ,  Guerino G. Sacripante

    发明人： Grazyna E. Kmiecik-Lawrynowicz ,  Raj D. Patel ,  Guerino G. Sacripante

    IPC分类号： G03G9/087 ,  G03G9/08

    CPC分类号： G03G9/0804 ,  G03G9/0812

    摘要： A process for the preparation of toner compositions comprising(i) preparing a pigment dispersion in a solvent, which dispersion is comprised of a pigment, an ionic surfactant and optionally a charge control agent;(ii) shearing the pigment dispersion with a latex mixture comprised of a counterionic surfactant with a charge polarity of opposite sign to that of said ionic surfactant, a nonionic surfactant and resin particles, thereby causing a flocculation or heterocoagulation of the formed particles of pigment, resin and charge control agent to form electrostatically bound toner size aggregates; and(iii) heating the statically bound aggregated particles to form said toner composition comprised of polymeric resin, pigment and optionally a charge control agent.

    摘要翻译： 一种制备调色剂组合物的方法，包括（i）在溶剂中制备颜料分散体，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）用包含与所述离子表面活性剂相反电荷极性的反离子表面活性剂，非离子表面活性剂和树脂颗粒的胶体混合物剪切所述颜料分散体，从而引起所形成的颜料颗粒的絮凝或杂合， 树脂和电荷控制剂以形成静电结合的调色剂尺寸聚集体; 和（iii）加热静态结合的凝集颗粒以形成由聚合树脂，颜料和任选的电荷控制剂组成的所述调色剂组合物。

    Encapsulated toner processes
    26.
    发明授权
    Encapsulated toner processes 失效
    封装墨粉处理

    公开(公告)号：US5283153A

    公开(公告)日：1994-02-01

    申请号：US868745

    申请日：1992-04-15

    申请人： Guerino G. Sacripante ,  Grazyna E. Kmiecik-Lawrynowicz ,  Hock S. Tan ,  Raj D. Patel

    发明人： Guerino G. Sacripante ,  Grazyna E. Kmiecik-Lawrynowicz ,  Hock S. Tan ,  Raj D. Patel

    IPC分类号： B01J13/14 ,  G03G9/08 ,  G03G9/093

    CPC分类号： G03G9/093 ,  G03G9/09371 ,  G03G9/09392

    摘要： A process for the preparation of encapsulated toner compositions which comprises dispersing a mixture of addition monomers, an optional preformed polymer resin, a free radical initiator, a colorant comprised of a pigment, dye or mixtures thereof, and shell forming monomer in an aqueous medium containing a cellulose polymer and a first ionic surfactant thereby forming a stable microdroplet suspension; and subsequently adding an aqueous solution of a second stabilizing surfactant followed by the formation of a soluble monomer forming shell wall by interfacial polymerization, and thereafter initiating and completing the core resin-forming free radical polymerization by heating thereby resulting in toner compositions with an average volume particle size of from about 3 to about 7 microns.

    摘要翻译： 一种制备包封的调色剂组合物的方法，其包括将添加单体的混合物，任选的预成型聚合物树脂，自由基引发剂，由颜料，染料或其混合物组成的着色剂和形成壳的单体混合在含有 纤维素聚合物和第一离子表面活性剂，从而形成稳定的微滴悬浮液; 然后加入第二稳定化表面活性剂的水溶液，然后通过界面聚合形成形成壳壁的可溶性单体，然后通过加热引发和完成形成核心树脂的自由基聚合，从而得到平均体积的调色剂组合物 粒径为约3至约7微米。