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241 条记录 (耗时 0.024 秒)

    Electroluminescent devices
    45.
    发明授权
    Electroluminescent devices 失效
    电致发光器件

    公开(公告)号：US5891587A

    公开(公告)日：1999-04-06

    申请号：US807510

    申请日：1997-02-27

    申请人： Nan-Xing Hu ,  Shuang Xie ,  Beng S. Ong ,  Zoran D. Popovic ,  Ah-Mee Hor ,  Ping Liu

    发明人： Nan-Xing Hu ,  Shuang Xie ,  Beng S. Ong ,  Zoran D. Popovic ,  Ah-Mee Hor ,  Ping Liu

    IPC分类号： H01L51/50 ,  H05B33/12

    CPC分类号： H01L51/5012 ,  Y10S428/917 ,  Y10T428/31504 ,  Y10T428/31678

    摘要： An organic electroluminescent (EL) device comprised of a starburst aromatic amine compound represented by the formula ##STR1## wherein N is nitrogen; A.sup.1 to A.sup.3 each individually represent biaryl; R.sub.a, R.sub.b, and R.sub.c represent independently one of the functional groups of the following formulae ##STR2## wherein N is nitrogen; each Ar.sup.1 and Ar.sup.2 are aryl; R.sub.1 to R.sub.8 are substituents independently selected from the group consisting of hydrogen, halogen, hydrocarbon, and alkoxy; and X represents oxygen, sulfur, or an alkylene.

    摘要翻译： 一种有机电致发光（EL）装置，其由式（I）表示的星形芳族胺化合物，其中N为氮; A1至A3各自独立地表示联芳基; R a，R b和R c分别独立地表示下式的官能团之一：其中N是氮; 每个Ar1和Ar2是芳基; R 1至R 8为独立地选自氢，卤素，烃和烷氧基的取代基; X表示氧，硫或亚烷基。

    Toner processes
    46.
    发明授权
    Toner processes 失效
    墨粉处理

    公开(公告)号：US5869216A

    公开(公告)日：1999-02-09

    申请号：US6742

    申请日：1998-01-13

    申请人： Beng S. Ong ,  Walter Mychajlowskij ,  Raj D. Patel ,  Patricia A. Burns ,  Richard P. N. Veregin

    发明人： Beng S. Ong ,  Walter Mychajlowskij ,  Raj D. Patel ,  Patricia A. Burns ,  Richard P. N. Veregin

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

    CPC分类号： G03G9/0804 ,  G03G9/09733 ,  Y10S977/89

    摘要： A process for the preparation of toner comprising blending an aqueous colorant dispersion and a latex emulsion containing resin; heating the resulting mixture at a temperature below about the glass transition temperature (Tg) of the latex resin to form toner sized aggregates; heating said resulting aggregates at a temperature above about the Tg of the latex resin to effect fusion or coalescence of the aggregates; redispersing said toner in water at a pH of above about 7; contacting the resulting mixture with a metal halide or salt, and then with a mixture of an alkaline base and a salicylic acid, a catechol, or mixtures thereof at a temperature of from about 25.degree. C. to about 80.degree. C.; and optionally isolating the toner product, washing, and drying.

    摘要翻译： 一种制备调色剂的方法，包括混合含水着色剂分散体和含树脂的胶乳乳液; 在低于胶乳树脂的玻璃化转变温度（Tg）的温度下加热所得混合物以形成调色剂尺寸的聚集体; 在高于约胶乳树脂的Tg的温度下加热所述聚集体，以实现聚集体的熔融或聚结; 将所述调色剂在pH高于约7的水中再分散; 在约25℃至约80℃的温度下将所得混合物与金属卤化物或盐接触，然后与碱性碱和水杨酸，儿茶酚或其混合物的混合物接触。 并任选地分离调色剂产物，洗涤和干燥。

    Cationic Toner processes
    48.
    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。

    Carrier processes
    49.
    发明授权
    Carrier processes 失效
    运营商流程

    公开(公告)号：US5582951A

    公开(公告)日：1996-12-10

    申请号：US498284

    申请日：1995-07-03

    申请人： Raj D. Patel ,  Grazyna E. Kmiecik-Lawrynowicz ,  Michael A. Hopper ,  Walter Mychajlowskij ,  Beng S. Ong

    发明人： Raj D. Patel ,  Grazyna E. Kmiecik-Lawrynowicz ,  Michael A. Hopper ,  Walter Mychajlowskij ,  Beng S. Ong

    IPC分类号： G03G9/107 ,  G03G9/113

    CPC分类号： G03G9/1133 ,  G03G9/107 ,  G03G9/1132

    摘要： A process for the preparation of carrier particles which comprises mixing a dispersion of water, submicron magnetic particles, and ionic surfactant with a latex comprised of resin particles suspended in an aqueous solution containing a surfactant that is counterionic in charge to said ionic surfactant, and a nonionic surfactant; thereafter heating the resulting mixture below about the latex resin glass transition temperature (Tg) while stirring to form aggregates, followed by increasing the temperature of said mixture to about above the latex resin Tg, and subsequently adding additional counterionic or nonionic surfactant solution to minimize, or avoid any further growth in particle size during heating of the mixture about above the latex resin Tg, and wherein said resin Tg is in the range of from between about 45.degree. C. to about 100.degree. C.

    摘要翻译： 一种制备载体颗粒的方法，其包括将水，亚微米磁性颗粒和离子表面活性剂的分散体与悬浮在含有负离子表面活性剂的水溶液中的树脂颗粒混合到所述离子表面活性剂上的胶乳混合，以及 非离子表面活性剂 然后在搅拌下将所得混合物在胶乳树脂玻璃化转变温度（Tg）以下加热以形成聚集体，随后将所述混合物的温度升高至胶乳树脂Tg的大约，然后加入另外的抗衡离子或非离子表面活性剂溶液， 或者避免混合物加热到胶乳树脂Tg以上时粒径的任何进一步增长，并且其中所述树脂Tg在约45℃至约100℃的范围内。

    Toner compositions with negative charge enhancing additives
    50.
    发明授权
    Toner compositions with negative charge enhancing additives 失效
    具有负电荷增强添加剂的调色剂组合物

    公开(公告)号：US5532098A

    公开(公告)日：1996-07-02

    申请号：US523576

    申请日：1995-09-05

    申请人： Beng S. Ong

    发明人： Beng S. Ong

    IPC分类号： G03G9/097

    CPC分类号： G03G9/09783

    摘要： A toner composition comprised of toner resins, colorants, optional surface additives, and a charge enhancing additive obtained from the reaction of an aluminum ion-containing compound with a molar equivalent of an aromatic carboxylic acid, and an excess of an N-alkyl or N-aryl-substituted bis(hydroxyalkyl)amine in an aqueous medium at a temperature ranging from about 25.degree. C. to about 100.degree. C.

    摘要翻译： 由调色剂树脂，着色剂，任选的表面添加剂和由含铝离子的化合物与摩尔当量的芳族羧酸的反应获得的电荷增强添加剂和过量的N-烷基或N 芳基取代的双（羟烷基）胺在水介质中在约25℃至约100℃的温度下进行。