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    Toner compositions and processes
    5.
    发明授权
    Toner compositions and processes 失效
    调色剂组成和工艺

    公开(公告)号：US5763133A

    公开(公告)日：1998-06-09

    申请号：US825451

    申请日：1997-03-28

    申请人： Beng S. Ong ,  Walter Mychajlowskij ,  Grazyna E. Kmiecik-Lawrynowicz ,  Raj D. Patel ,  David J. Sanders ,  Stephan V. Drappel

    发明人： Beng S. Ong ,  Walter Mychajlowskij ,  Grazyna E. Kmiecik-Lawrynowicz ,  Raj D. Patel ,  David J. Sanders ,  Stephan V. Drappel

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

    CPC分类号： G03G9/08793 ,  G03G9/0804 ,  G03G9/08708 ,  G03G9/08711 ,  G03G9/08728 ,  G03G9/08731 ,  G03G9/08733

    摘要： A process for the preparation of toner comprising (i) blending (a) an aqueous pigment dispersion containing a first ionic surfactant and an optional charge control agent with (b) a latex blend comprised of linear polymer and crosslinked polymer particles, optional nonionic surfactant and a second ionic surfactant with a charge polarity opposite to that of said first ionic surfactant in said pigment dispersion; (ii) heating the resulting mixture at about below the glass transition temperature (Tg) of the linear latex polymer to form toner sized aggregates; and (iii) subsequently heating said aggregate suspension about above the Tg of the linear latex polymer to effect fusion or coalescence of said aggregates.

    摘要翻译： 一种制备调色剂的方法，包括（i）将（a）含有第一离子型表面活性剂和任选的电荷控制剂的水性颜料分散体与（b）由线性聚合物和交联聚合物颗粒组成的胶乳共混物，任选的非离子表面活性剂和 在所述颜料分散体中具有与所述第一离子型表面活性剂相反的电荷极性的第二离子表面活性剂; （ii）将所得混合物加热至低于线性胶乳聚合物的玻璃化转变温度（Tg），以形成调色剂尺寸的聚集体; 和（iii）随后将所述聚集体悬浮液加热至高于线性胶乳聚合物的Tg，以实现所述聚集体的熔融或聚结。

    Toner compositions and processes
    6.
    发明授权
    Toner compositions and processes 失效
    调色剂组成和工艺

    公开(公告)号：US5747215A

    公开(公告)日：1998-05-05

    申请号：US841300

    申请日：1997-04-29

    申请人： Beng S. Ong ,  Walter Mychajlowskijj ,  Grazyna E. Kmiecik-Lawrynowicz ,  Raj D. Patel ,  David J. Sanders ,  Stephan V. Drappel

    发明人： Beng S. Ong ,  Walter Mychajlowskijj ,  Grazyna E. Kmiecik-Lawrynowicz ,  Raj D. Patel ,  David J. Sanders ,  Stephan V. Drappel

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

    CPC分类号： G03G9/08793 ,  G03G9/0804 ,  G03G9/08708 ,  G03G9/08711 ,  G03G9/08728 ,  G03G9/08731 ,  G03G9/08733

    摘要： A process for the preparation of toner comprising (i) blending (a) a colorant dispersion containing a first ionic surfactant and an optional charge control agent with (b) a latex blend comprised of linear polymer and crosslinked polymer particles, optional nonionic surfactant and a second ionic surfactant with a charge polarity opposite to that of said first ionic surfactant in said colorant dispersion; (ii) heating the resulting mixture at about below the glass transition temperature (Tg) of the linear latex polymer to form toner sized aggregates; and (iii) subsequently heating said aggregate suspension about above the Tg of the linear latex polymer to effect fusion or coalescence of said aggregates, and wherein said linear polymer is of an M.sub.w of from about 20,000 to about 40,000.

    摘要翻译： 一种制备调色剂的方法，包括（i）将（a）含有第一离子型表面活性剂和任选的电荷控制剂的着色剂分散体与（b）由直链聚合物和交联聚合物颗粒组成的胶乳共混物，任选的非离子表面活性剂和 第二离子表面活性剂，其电荷极性与所述着色剂分散体中所述第一离子表面活性剂的极性相反; （ii）将所得混合物加热至低于线性胶乳聚合物的玻璃化转变温度（Tg），以形成调色剂尺寸的聚集体; 和（iii）随后将所述聚集体悬浮液加热至高于线性胶乳聚合物的Tg以实现所述聚集体的熔融或聚结，并且其中所述线性聚合物的Mw为约20,000至约40,000。

    Low shear toner aggregation processes
    8.
    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。