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141 条记录 (耗时 0.035 秒)

    Toner processes
    84.
    发明授权
    Toner processes 失效

    公开(公告)号：US5827633A

    公开(公告)日：1998-10-27

    申请号：US903694

    申请日：1997-07-31

    申请人： Beng S. Ong ,  Raj D. Patel

    发明人： Beng S. Ong ,  Raj D. Patel

    IPC分类号： G03G9/097 ,  B82B1/00 ,  G03G9/08 ,  G03G9/087

    CPC分类号： G03G9/0804

    摘要： A process for the preparation of toner comprising (i) preparing, or providing an aqueous colorant dispersion, which dispersion is comprised of a colorant and an ionic surfactant in water; (ii) blending said colorant dispersion with a latex emulsion comprised of resin particles, a nonionic surfactant, and an ionic surfactant of opposite charge polarity to that of the ionic surfactant in said colorant dispersion; (iii) heating the resulting mixture below about the glass transition temperature (Tg) of the latex resin to form toner sized aggregates; (iv) heating the resulting aggregate suspension of (iii) above about the Tg of the latex resin; and (v) retaining the temperature in the range of from about 30.degree. C. to about 95.degree. C., and subsequently, adding an aqueous solution of boric acid, or an aqueous solution of a metal salt; adjusting the pH of the resulting reaction mixture to from about 9 to about 12 by the addition of a base, followed by the addition of a salicylic acid or catechol; and optionally (vi) isolating, washing and drying the toner obtained.

    Encapsulated toner process utilizing phase separation
    85.
    发明授权
    Encapsulated toner process utilizing phase separation 失效
    使用相分离的封装墨粉处理

    公开(公告)号：US5302486A

    公开(公告)日：1994-04-12

    申请号：US870375

    申请日：1992-04-17

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

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

    IPC分类号： B01J13/04 ,  B01J13/14 ,  G03G9/08 ,  G03G9/093

    CPC分类号： G03G9/09321 ,  G03G9/09371 ,  G03G9/09392

    摘要： A process for the preparation of an encapsulated toner composition comprised of a core and a shell thereover, which process comprises mixing an organic phase comprised of an olefinic monomer, pigment, and a first resin A soluble in the organic phase; dispersing the organic phase into microdroplets in an aqueous solution comprised of a surfactant; subjecting the resulting mixture to free radical polymerization by heating wherein the olefinic monomer is converted to a second resin B; and wherein said resin B is incompatible with said resin A and phase separates whereby a core and shell results.

    摘要翻译： 一种由芯和壳组成的包封的调色剂组合物的制备方法，该方法包括混合由烯烃单体，颜料和可溶于有机相的第一树脂A组成的有机相; 将有机相分散在由表面活性剂组成的水溶液中的微滴中; 使所得混合物通过加热进行自由基聚合，其中烯属单体转化为第二树脂B; 并且其中所述树脂B与所述树脂A不相容并且相分离，从而产生核和壳。

    Microsuspension processes for toner compositions
    86.
    发明授权
    Microsuspension processes for toner compositions 失效
    调色剂组合物的微悬浮方法

    公开(公告)号：US5290654A

    公开(公告)日：1994-03-01

    申请号：US921165

    申请日：1992-07-29

    申请人： Guerino G. Sacripante ,  James M. Duff ,  Grazyna Kmiecik-Lawrynowica ,  Raj D. Patel

    发明人： Guerino G. Sacripante ,  James M. Duff ,  Grazyna Kmiecik-Lawrynowica ,  Raj D. Patel

    IPC分类号： G03G9/087 ,  C08J3/215 ,  G03G9/08

    CPC分类号： C08J3/215 ,  G03G9/0804

    摘要： A process for the preparation of toner compositions which comprises dissolving a polymer, and optionally a pigment in an organic solvent; dispersing the resulting solution in an aqueous media containing a surfactant, or mixture of surfactants; stirring the mixture with optional heating to remove the organic solvent thereby obtaining suspended particles of about 0.05 micron to about 2 microns in volume diameter; subsequently homogenizing the resulting suspension with an optional pigment in water and surfactant; followed by aggregating the mixture by heating thereby providing toner particles with an average particle volume diameter of from between about 3 to about 21 microns when said pigment is present.

    摘要翻译： 一种制备调色剂组合物的方法，其包括将聚合物和任选的颜料溶解在有机溶剂中; 将所得溶液分散在含有表面活性剂或表面活性剂混合物的水性介质中; 在任选加热下搅拌混合物以除去有机溶剂，从而获得体积直径为约0.05微米至约2微米的悬浮颗粒; 随后用任选的颜料在水和表面活性剂中均化得到的悬浮液; 然后通过加热聚集混合物，从而当所述颜料存在时提供具有约3至约21微米的平均颗粒体积直径的调色剂颗粒。

    Photochromic gyricon display
    90.
    发明授权
    Photochromic gyricon display 有权
    光致变色显示屏

    公开(公告)号：US06549327B2

    公开(公告)日：2003-04-15

    申请号：US09864386

    申请日：2001-05-24

    申请人： Daniel A. Foucher ,  Raj D. Patel ,  Naveen Chopra ,  Peter M. Kazmaier ,  Erwin Buncel ,  James Wojtyk

    发明人： Daniel A. Foucher ,  Raj D. Patel ,  Naveen Chopra ,  Peter M. Kazmaier ,  Erwin Buncel ,  James Wojtyk

    IPC分类号： G09G308

    CPC分类号： G02B26/026 ,  C07D491/10

    摘要： Disclosed is a display comprising an arrangement of a plurality of optically anisotropic rotatable elements, each of the rotatable elements having a surface in contact with an enabling fluid, the rotatable elements being electrically dipolar in the presence of the enabling fluid and thus being subject to rotation upon application of an electric field, the rotatable elements being free to rotate in place but not free to translate substantially so as to disrupt the arrangement of rotatable elements, wherein a first portion of the surface contains a mixture of a chelating agent and a spiropyran material of the formula wherein n is an integer representing the number of repeat —CH2— units and R is —H or —CH═CH2, and wherein a second portion of the surface contains substantially no spiropyran.

    摘要翻译： 公开了一种显示器，其包括多个光学各向异性可旋转元件的布置，每个可旋转元件具有与启用流体接触的表面，可旋转元件在有效流体存在的情况下是电偶极性的，因此被旋转 在施加电场时，可旋转元件可自由旋转到位，但不能自由平移以便基本上平移以便破坏可旋转元件的布置，其中表面的第一部分包含螯合剂和螺吡喃材料的混合物 其中n是表示重复-CH 2 - 单元的数目的整数，并且R是-H或-CH = CH 2，并且其中该表面的第二部分基本上不含螺吡喃。