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61 条记录 (耗时 0.048 秒)

    Coated carriers by aggregation processes
    44.
    发明授权
    Coated carriers by aggregation processes 失效
    通过聚合过程的涂层载体

    公开(公告)号：US5565296A

    公开(公告)日：1996-10-15

    申请号：US497737

    申请日：1995-07-03

    申请人： Grazyna E. Kmiecik-Lawrynowicz ,  Richard P. N. Veregin ,  Raj D. Patel ,  Michael A. Hopper ,  Maria V. McDougall

    发明人： Grazyna E. Kmiecik-Lawrynowicz ,  Richard P. N. Veregin ,  Raj D. Patel ,  Michael A. Hopper ,  Maria V. McDougall

    IPC分类号： C08J3/215 ,  G03G9/113

    CPC分类号： C08J3/215 ,  G03G9/1131 ,  G03G9/1133 ,  G03G9/1138 ,  G03G9/1139

    摘要： A process for the preparation of polymer compositions which comprises mixing a conductive component with an anionic polymeric latex containing a polymer; adding a cationic surfactant, or flocculant whereby the aggregation of the latex particles and the conductive component particles results; subsequently adding colloidal stabilizer, followed by the addition of a base to obtain a pH of from about 7 to about 12; heating above about the polymer glass transition temperature thereby enabling the severage, or breakage of the formed aggregated particles; further heating above about the polymer glass transition temperature enabling the coalescence of the polymer and conductive component particles; and optionally washing and drying the resulting coalesced product.

    摘要翻译： 一种制备聚合物组合物的方法，其包括将导电组分与含有聚合物的阴离子聚合物胶乳混合; 加入阳离子表面活性剂或絮凝剂，由此导致胶乳颗粒和导电组分颗粒的聚集; 随后加入胶体稳定剂，然后加入碱以获得约7至约12的pH; 加热高于聚合物玻璃化转变温度，从而能够形成聚集的颗粒的覆盖或破裂; 进一步加热高于聚合物玻璃化转变温度，使聚合物和导电组分颗粒聚结; 并任选地洗涤和干燥所得的聚结产物。

    Liquid developers and toner aggregation processes
    45.
    发明授权
    Liquid developers and toner aggregation processes 失效
    液体显影剂和调色剂聚集过程

    公开(公告)号：US5536615A

    公开(公告)日：1996-07-16

    申请号：US498206

    申请日：1995-07-05

    申请人： Michael A. Hopper ,  Raj D. Patel ,  Grazyna E. Kmiecik-Lawrynowicz ,  Peter G. Odell ,  Bernard Grushkin ,  George A. Gibson

    发明人： Michael A. Hopper ,  Raj D. Patel ,  Grazyna E. Kmiecik-Lawrynowicz ,  Peter G. Odell ,  Bernard Grushkin ,  George A. Gibson

    IPC分类号： G03G9/08 ,  G03G9/12 ,  G03G9/135 ,  G03G9/13

    CPC分类号： G03G9/12 ,  G03G9/0804 ,  G03G9/0819 ,  G03G9/1355

    摘要： A process for the preparation of liquid developers comprising:(i) preparing a pigment dispersion, which dispersion is comprised of a pigment, and an ionic surfactant;(ii) shearing said pigment dispersion with a 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 and optionally adding further anionic, or nonionic surfactant to stabilize the aggregates obtained in (iii);(iii) heating the above resulting sheared aqueous blend below about the glass transition temperature (Tg) of the resin to form toner size aggregates with a narrow particle size distribution;(iv) heating said bound aggregates above about the Tg of the resin to form toner size particles in an aqueous medium and which particles possess a narrow particle size distribution; and(v) separating from the aqueous medium toner particles of resin and pigment, and dispersing said toner particles in a carrier fluid.

    摘要翻译： 一种用于制备液体显影剂的方法，包括：（i）制备颜料分散体，该分散体由颜料和离子表面活性剂组成; （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胶乳或乳液共混物剪切所述颜料分散体，所述非离子表面活性剂，树脂和所述离子表面活性剂的电荷极性与所述离子表面活性剂具有相反的电荷极性， （iii）中得到的聚集体; （iii）将上述所得的剪切含水混合物加热到低于树脂的玻璃化转变温度（Tg）的温度以形成具有窄粒度分布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，以在水性介质中形成调色剂颗粒，并且该颗粒具有窄的粒度分布; 和（v）从水性介质中分离树脂和颜料的调色剂颗粒，并将所述调色剂颗粒分散在载体流体中。

    Toner aggregation processes
    46.
    发明授权
    Toner aggregation processes 失效
    调色剂聚合过程

    公开(公告)号：US5496676A

    公开(公告)日：1996-03-05

    申请号：US411196

    申请日：1995-03-27

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

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

    IPC分类号： G03G9/08 ,  G03G9/087

    CPC分类号： G03G9/0815 ,  G03G9/0804

    摘要： A process comprising:(i) preparing a pigment dispersion comprised of pigment, ionic surfactant, and optional charge control agent;(ii) mixing at least two resins in the form of latexes, each latex comprising a resin, ionic and nonionic surfactants and optionally a charge control agent, and wherein the ionic surfactant has a countercharge to the ionic surfactant of (i) to obtain a latex blend;(iii) shearing said pigment dispersion with the latex blend of (ii) comprised of resins, counterionic surfactant with a charge polarity of opposite sign to that of said ionic surfactant and a nonionic surfactant;(iv) heating the above sheared blends of (iii) below about the glass transition temperature (Tg) of the resin, to form electrostatically bound toner size aggregates with a narrow particle size distribution; and(v) subsequently adding further anionic surfactant solution to minimize further growth of the bound aggregates (vi);(vi) heating said bound aggregates above about the glass transition temperature Tg of the resin to form stable toner particles; and optionally(vii) separating and drying the toner.

    摘要翻译： 一种方法，包括：（i）制备由颜料，离子表面活性剂和任选的电荷控制剂组成的颜料分散体; （ii）混合至少两种胶乳形式的树脂，每种胶乳包含树脂，离子和非离子表面活性剂以及任选的电荷控制剂，并且其中所述离子表面活性剂与（i）的离子表面活性剂相反，以获得 胶乳混合物 （iii）用（ii）由树脂构成的胶乳混合物剪切所述颜料分散体，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非离子表面活性剂; （iv）将上述（iii）的剪切混合物加热到约树脂的玻璃化转变温度（Tg）以下以形成具有窄粒度分布的静电结合的调色剂尺寸聚集体; 和（v）随后加入另外的阴离子表面活性剂溶液以使结合的聚集体（vi）的进一步生长最小化。 （vi）将所述结合的聚集体加热到高于树脂的玻璃化转变温度Tg以形成稳定的调色剂颗粒; 和（vii）分离和干燥调色剂。

    Toner aggregation processes
    47.
    发明授权
    Toner aggregation processes 失效
    调色剂聚合过程

    公开(公告)号：US5391456A

    公开(公告)日：1995-02-21

    申请号：US203095

    申请日：1994-02-28

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

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

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

    CPC分类号： G03G9/0815 ,  G03G9/0804

    摘要： A process for the preparation of toner compositions comprising:(i) forming a dispersion of resin in an aqueous ionic surfactant solution;(ii) preparing pigment dispersions in water of three different pigments each of a dissimilar color, each dispersion being comprised of a pigment dispersed in water and which preparation utilizes nonionic dispersants, and optionally an ionic surfactant;(iii) blending the prepared resin dispersed as a latex with two, or optionally three of the different color pigment dispersions of step (ii);(iv) adding an aqueous solution of counterionic surfactant as a coagulant to the formed resin-pigment blends, while continuously subjecting the mixture to high shear, to induce a homogeneous gel of the flocculated resin-pigments blend;(v) heating the above sheared gel at temperatures between about 20.degree. C. and about 5.degree. C. below the glass transition temperature (Tg) of the resin while continuously stirring at speeds between about 200 and about 500 revolutions per minute to form statically bound toner sized aggregates between about 2 and about 12 microns in average volume diameter with a narrow size dispersity and with a geometric size distribution (GSD) between 1.10 and 1.25;(vi) heating the statically bound aggregated particles at temperatures of from between 25.degree. C. and 40.degree. C. above the Tg of the resin to form coalesced rigid particles of a toner composition comprised of polymeric resin, and pigment agent; and optionally(vii) separating and drying said toner.

    摘要翻译： 一种制备调色剂组合物的方法，包括：（i）在离子表面活性剂水溶液中形成树脂分散体; （ii）将颜料分散体在三种不同颜色的不同颜料的水中制备，每种分散体由分散在水中的颜料组成，并且该制剂使用非离子分散剂和任选的离子表面活性剂; （iii）将作为胶乳分散的制备的树脂与步骤（ii）的两种或任选三种不同颜色的颜料分散体共混; （iv）在形成的树脂 - 颜料混合物中加入作为凝结剂的抗衡离子表面活性剂的水溶液，同时连续地对混合物进行高剪切，以诱导絮凝的树脂 - 颜料混合物的均匀凝胶; （v）在约20℃至约5℃的温度下将树脂加热至低于树脂的玻璃化转变温度（Tg）的温度，同时以约200至约500转/分钟的速度连续搅拌以形成静态 平均体积直径约2至约12微米的结合的调色剂尺寸的聚集体具有窄尺寸分散度和1.10至1.25之间的几何尺寸分布（GSD）; （vi）在树脂的Tg高于25℃至40℃的温度下加热静态结合的聚集颗粒，以形成由聚合物树脂和颜料剂组成的调色剂组合物的聚结刚性颗粒; 和（vii）分离和干燥所述调色剂。

    Toner coagulant processes
    50.
    发明授权
    Toner coagulant processes 失效
    调色剂凝结剂工艺

    公开(公告)号：US06500597B1

    公开(公告)日：2002-12-31

    申请号：US09922263

    申请日：2001-08-06

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

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

    IPC分类号： G03A900

    CPC分类号： G03G9/0804

    摘要： A process for the preparation of chemical toner by mixing a colorant, a latex, optionally a wax, and a first coagulant of, for example, a polyaluminum sulfosilicate and a second cationic coagulant of, for example, a benzylalkonium chloride.

    摘要翻译： 通过混合着色剂，胶乳，任选的蜡和例如聚山梨酸磺酸铝的第一絮凝剂和例如苄基氯化铵的第二阳离子凝结剂来制备化学调色剂的方法。