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    Cationic Toner processes
    12.
    发明授权
    Cationic Toner processes 失效
    阳离子调色剂工艺

    公开(公告)号：US5645968A

    公开(公告)日：1997-07-08

    申请号：US726600

    申请日：1996-10-07

    申请人： Guerino G. Sacripante ,  Maureen M. Kedian ,  Raj D. Patel ,  Walter Mychajlowskij ,  Beng S. Ong

    发明人： Guerino G. Sacripante ,  Maureen M. Kedian ,  Raj D. Patel ,  Walter Mychajlowskij ,  Beng S. Ong

    IPC分类号： G03G9/087 ,  G03G9/08

    CPC分类号： G03G9/0804

    摘要： A process for the preparation of toner comprising(i) preparing, or providing a cationic emulsion resin latex comprised of a resin derived from at least one olefinic nonpolar monomer, a cationic olefinic monomer, a cationic free radical initiator, and optionally a chain transfer agent in an aqueous mixture comprised of a nonionic surfactant and a cationic surfactant, and which mixture is heated at a temperature of from about 60.degree. C. to about 95.degree. C.;(ii) adjusting the pH of said cationic latex to from about 10 to about 14 by the addition of a base;(iii) preparing, or providing a pigment dispersion, which dispersion is comprised of a pigment and an anionic surfactant, and optionally a charge control agent;(iv) shearing said pigment dispersion with the pH adjusted latex of (ii) and heating below about the resin Tg to form electrostatically bound toner size aggregates, and optionally adding a cationic surfactant to stabilize the size of the toner aggregates; and(v) heating said electrostatically bound toner size aggregates above about the Tg of the resin to form coalesced toner particles; followed by optionally filtering, washing and drying the toner obtained.

    摘要翻译： 一种制备调色剂的方法，包括（i）制备或提供由至少一种烯属非极性单体衍生的树脂，阳离子烯烃单体，阳离子自由基引发剂和任选的链转移剂组成的阳离子乳液树脂胶乳 在由非离子表面活性剂和阳离子表面活性剂组成的含水混合物中，将混合物在约60℃至约95℃的温度下加热; （ii）通过加入碱将所述阳离子胶乳的pH调节至约10至约14; （iii）制备或提供颜料分散体，该分散体由颜料和阴离子表面活性剂以及任选的电荷控制剂组成; （iv）用（ii）的pH调节的胶乳剪切所述颜料分散体，并加热到树脂Tg附近，以形成静电结合的调色剂尺寸聚集体，以及任选地加入阳离子表面活性剂以稳定调色剂聚集体的尺寸; 和（v）在所述树脂的Tg附近加热所述静电结合的调色剂尺寸聚集体以形成聚结的调色剂颗粒; 然后任选地过滤，洗涤和干燥获得的调色剂。

    Toner process
    16.
    发明授权
    Toner process 失效
    调色剂过程

    公开(公告)号：US5698223A

    公开(公告)日：1997-12-16

    申请号：US829551

    申请日：1997-03-28

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

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

    IPC分类号： G03G9/08 ,  G03G9/087

    CPC分类号： G03G9/0804 ,  G03G9/08768

    摘要： A process for the preparation of toner comprising (i) solubilizing an imide based resin in water at pH of from about 10 to about 13 and which solubilizing is accomplished in the presence of nonionic surfactants and anionic surfactants; followed by precipitating the resulting dissolved imide resin into colloidal particles with a size diameter of from about 20 nanometers to about 500 nanometers, and which precipitating is accomplished with a high shearing device operating at a speed of from about 500 to about 2,000 revolutions per minute; acidifying the resulting mixture to a pH of from about 2 to about 4; (ii) preparing a pigment dispersion in water, which dispersion is comprised of a pigment, an oppositely charged ionic surfactant and optionally charge control agent; (iii) shearing (i) and (ii), thereby causing a flocculation of the resin, pigment, surfactants, and optional charge control agent; (iv) heating the resulting flocculent mixture of (iii) with stirring at a temperature of from about 25.degree. C. to about 1.degree. C. below the glass transition temperature (Tg) of the imide resin to effect formation of electrostatically bounded toner sized aggregates, and wherein the imide resin has a Tg of from about 45.degree. C. to about 65.degree. C.; (v) heating the resulting aggregate suspension of (iv) in the presence of additional anionic surfactant selected in an amount of from about 0.01 to about 5 weight percent based on the weight percent of the total reaction mixture solids, and which heating is at a temperature of from about 10.degree. C. to about 55.degree. C. above the Tg of the imide resin; and optionally cooling, and optionally (vi) separating said toner by washing, and thereafter drying said toner.

    摘要翻译： 一种制备调色剂的方法，包括（i）将酰亚胺基树脂溶解在约10至约13的pH下，并且在非离子表面活性剂和阴离子表面活性剂存在下进行增溶; 然后将所得溶解的酰亚胺树脂沉淀成尺寸直径为约20纳米至约500纳米的胶体颗粒，并且以约500至约2000转/分钟的速度运行的高剪切装置完成沉淀; 将所得混合物酸化至约2至约4的pH; （ii）在水中制备颜料分散体，该分散体由颜料，相反电荷的离子表面活性剂和任选的电荷控制剂组成; （iii）剪切（i）和（ii），从而引起树脂，颜料，表面活性剂和任选的电荷控制剂的絮凝; （iv）在低于酰亚胺树脂的玻璃化转变温度（Tg）的约25℃至约1℃的温度下搅拌加热得到的（ⅲ）絮状混合物，以形成静电有界调色剂尺寸 聚集体，并且其中所述酰亚胺树脂的Tg为约45℃至约65℃。 （v）在所选择的另外的阴离子表面活性剂存在下加热得到的（iv）聚集体悬浮液，其量为总反应混合物固体的重量百分比为约0.01至约5重量％，加热为 温度高于酰亚胺树脂的Tg约10℃至约55℃; 并任选地冷却，并且任选地（vi）通过洗涤分离所述调色剂，然后干燥所述调色剂。

    Toner compositions and processes thereof
    17.
    发明授权
    Toner compositions and processes thereof 失效
    调色剂组合物及其工艺

    公开(公告)号：US5604076A

    公开(公告)日：1997-02-18

    申请号：US595143

    申请日：1996-02-01

    申请人： Raj D. Patel ,  Guerino G. Sacripante ,  Grazyna E. Kmiecik-Lawrynowicz ,  Michael A. Hopper ,  Francisco E. Torres

    发明人： Raj D. Patel ,  Guerino G. Sacripante ,  Grazyna E. Kmiecik-Lawrynowicz ,  Michael A. Hopper ,  Francisco E. Torres

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

    CPC分类号： G03G9/0806

    摘要： A process for the preparation of toner compositions comprising:(i) preparing a latex or emulsion resin comprised of a polyester core encapsulated within a styrene based resin shell by heating said polyester emulsion containing an anionic surfactant with a mixture of monomers of styrene and acrylic acid, and with potassium persulfate, ammonium persulfate, sodium bisulfite, or mixtures thereof;(ii) adding a pigment dispersion, which dispersion is comprised of a pigment, a cationic surfactant, and optionally a charge control agent, followed by the sharing of the resulting blend;(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; and(iv) heating said electrostatically bound aggregates above about the Tg of the resin.

    摘要翻译： 一种制备调色剂组合物的方法，包括：（i）通过将含有阴离子表面活性剂的聚酯乳液与苯乙烯和丙烯酸的单体混合物加热，制备由包封在苯乙烯基树脂壳内的聚酯芯构成的胶乳或乳液树脂 和过硫酸钾，过硫酸铵，亚硫酸氢钠或其混合物; （ii）添加颜料分散体，该分散体由颜料，阳离子表面活性剂和任选的电荷控制剂组成，然后共享所得共混物; （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; 和（iv）将所述静电结合的聚集体加热到高于树脂的Tg的高度。

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

    公开(公告)号：US06210853B1

    公开(公告)日：2001-04-03

    申请号：US09657340

    申请日：2000-09-07

    申请人： Raj D. Patel ,  Michael A. Hopper ,  Emily L. Moore ,  Guerino G. Sacripante

    发明人： Raj D. Patel ,  Michael A. Hopper ,  Emily L. Moore ,  Guerino G. Sacripante

    IPC分类号： G03G9087

    CPC分类号： G03G9/08708 ,  G03G9/0806 ,  G03G9/0819 ,  G03G9/08711 ,  G03G9/08755

    摘要： A process for the preparation of toner including (i) gerating by emulsion polymerization in the presence of an initiator a first resin latex emulsion; (ii) generating by polycondensation a second resin latex optionally in the presence of a catalyst; (iib) dispersing the resin of (ii) in water; (iii) mixing (iib) with a colorant thereby providing a colorant dispersion; (iiib) mixing the resin latex emulsion of (i) with the resin/colorant mixture of (iii) to provide a blend of a resin and colorant; (iv) adding an aqueous inorganic cationic coagulant solution of a polymeric metal salt and optionally an organic cationic coagulant to the resin/colorant blend of (iiib); (v) heating at a temperature of from about 5 to about 10 degrees Centigrade below the resin Tg of (i), to thereby form aggregate particles and which particles are optionally at a pH of from about 2 to about 3.5; (vi) adjusting the pH of (v) to about 6.5 to about 9 by the addition of a base; (vii) heating the aggregate particles of (v) at a temperature of from about 5 to about 50 degrees Centigrade above the Tg of the resin of (i), followed by a reduction of the pH to from about 2.5 to about 5 by the addition of an acid resulting in coalesced toner; (viii) optionally isolating the toner.

    摘要翻译： 一种制备调色剂的方法，包括（i）在引发剂存在下通过乳液聚合第一树脂胶乳乳液; （ii）任选地在催化剂存在下通过缩聚产生第二树脂胶乳; （iib）将（ii）的树脂分散在水中; （iii）将混合（iib）与着色剂混合，从而提供着色剂分散体; （iiib）将（i）的树脂胶乳乳液与（iii）的树脂/着色剂混合物混合以提供树脂和着色剂的共混物; （iv）将聚合金属盐和任选的有机阳离子凝结剂的无机阳离子凝结剂水溶液加入到（iiib）的树脂/着色剂混合物中; （v）在（i）的树脂Tg以下约5至约10摄氏度的温度下加热，从而形成聚集体颗粒，并且哪些颗粒任选处于约2至约3.5的pH值; （vi）通过添加碱将（v）的pH调节至约6.5至约9; （vii）在（i）的树脂的Tg以上约5至约50摄氏度的温度下加热（ⅴ）的聚集体颗粒，随后将pH降低至约2.5至约5 加入导致聚结的调色剂的酸; （viii）任选地分离调色剂。

    Toner processes
    20.
    发明授权
    Toner processes 有权
    墨粉处理

    公开(公告)号：US06190820B1

    公开(公告)日：2001-02-20

    申请号：US09657273

    申请日：2000-09-07

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

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

    IPC分类号： G03G9087

    CPC分类号： G03G9/0804 ,  G03G9/0806

    摘要： A process for the preparation of toner by, for example (i) generating by emulsion polymerization in the presence of an initiator a first resin latex emulsion; (ii) generating in the presence of an oil soluble initiator by solution polymerization a second resin latex; (iii) mixing (ii) with a colorant; (iiib) mixing the resin latex emulsion of (i) with the resin/colorant mixture of (iii) to provide a blend of a resin and colorant; (iv) adding an aqueous inorganic cationic coagulant solution of a metal salt and optionally an organic cationic coagulant to the resin/colorant blend of (iiib); (v) heating at a temperature of from about 5° C. to about 10° C. below the resin Tg of (i), to form aggregate particles; (vi) adjusting the pH of (v) by the addition of a base; (vii) heating the aggregate particles of (v) at temperatures of from about 5° C. to about 50° C. above the Tg of the resin of (i), followed by the addition of an acid.

    摘要翻译： 通过例如（i）在引发剂存在下通过乳液聚合产生第一树脂胶乳乳液来制备调色剂的方法;（ii）通过溶解聚合在油溶性引发剂的存在下产生第二树脂胶乳; （iii）将（ii）与着色剂混合;（iiib）将（i）的树脂胶乳乳液与（iii）的树脂/着色剂混合物混合以提供树脂和着色剂的共混物;（iv） （iiib）的树脂/着色剂共混物中的金属盐和任选的有机阳离子凝结剂的阳离子凝结剂溶液;（v）在温度为约5℃至约10℃的温度下加热至（ i），以形成聚集体颗粒;（vi）通过加入碱来调节（v）的pH;（vii）在约5℃至约50℃的温度下加热（v）的聚集体颗粒 高于（i）的树脂的Tg，然后加入酸。