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    Process for preparing waterfastness additive
    1.
    发明申请
    Process for preparing waterfastness additive 失效

    公开(公告)号：US20030027948A1

    公开(公告)日：2003-02-06

    申请号：US09915430

    申请日：2001-07-26

    Applicant: Xerox Corporation

    Inventor： Sheau V. Kao ,  Daniel A. Foucher ,  Mohammad J. Hossain ,  Christine E. Bedford ,  George Liebermann

    IPC: C08F002/00 ,  C08F004/28 ,  C03C017/00 ,  C08F004/38

    CPC classification number: C08F26/04

    Abstract: Disclosed is a process which comprises (a) reacting allyl bromide with diethyl amine in a molar ratio of at least about 1 mole of allyl bromide per about 1.15 moles of diethyl amine and in a molar ratio of no more than about 1 mole of allyl bromide per about 2 moles of diethyl amine, thereby generating allyl diethyl amine in a monomer reaction mixture; (b) subsequently filtering the monomer reaction mixture to remove impurities; (c) subsequently reacting the allyl diethyl amine with allyl bromide, thereby generating solid diallyl diethyl ammonium bromide; (d) subsequently isolating the solid diallyl diethyl ammonium bromide; (e) subsequently dissolving the diallyl diethyl ammonium bromide in a solvent and adding thereto a polymerization initiator to form a polymerization reaction mixture; (f) subsequently heating the polymerization reaction mixture in a vessel equipped with a reflux condenser to a temperature of from about 90 to about 100null C., thereby generating poly(diallyl diethyl ammonium bromide); and (g) subsequently optionally isolating the poly(diallyl diethyl ammonium bromide) from the polymerization reaction mixture.

    Phase change ink compositions
    2.
    发明申请
    Phase change ink compositions 失效
    相变油墨组合物

    公开(公告)号：US20030105185A1

    公开(公告)日：2003-06-05

    申请号：US09948958

    申请日：2001-09-07

    Applicant: Xerox Corporation

    Inventor： H. Bruce Goodbrand ,  Thomas W. Smith ,  Daniel A. Foucher ,  Kathleen M. McGrane ,  Dina Popovic

    IPC: C03C017/00 ,  C09D005/00

    CPC classification number: C09D11/34

    Abstract: Disclosed is a phase change ink composition comprising a colorant and an ink vehicle, the ink being a solid at temperatures less than about 50null C. and exhibiting a viscosity of no more than about 20 centipoise at a jetting temperature of no more than about 160null C., wherein at a first temperature hydrogen bonds of sufficient strength exist between the ink vehicle molecules so that the ink vehicle forms hydrogen-bonded dimers, oligomers, or polymers, and wherein at a second temperature which is higher than the first temperature the hydrogen bonds between the ink vehicle molecules are sufficiently broken that fewer hydrogen-bonded dimers, oligomers, or polymers are present in the ink at the second temperature than are present in the ink at the first temperature, so that the viscosity of the ink at the second temperature is lower than the viscosity of the ink at the first temperature.

    Abstract translation: 公开了一种相变油墨组合物，其包含着色剂和油墨载体，所述油墨在低于约50℃的温度下为固体，并且在不超过约160℃的喷射温度下显示不超过约20厘泊的粘度 ℃，其中在第一温度下，在油墨载体分子之间存在足够强度的氢键，使得油墨载体形成氢键二聚体，低聚物或聚合物，并且其中在高于第一温度的第二温度下 油墨载体分子之间的氢键被充分破坏，在第二温度下墨中存在较少的氢键二聚体，低聚物或聚合物，而不是在第一温度下存在于墨中，因此在 第二温度低于第一温度下墨水的粘度。

    Photochromic gyricon display
    3.
    发明申请
    Photochromic gyricon display 有权
    光致变色显示屏

    公开(公告)号：US20020186450A1

    公开(公告)日：2002-12-12

    申请号：US09864386

    申请日：2001-05-24

    Applicant: Xerox Corporation

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

    IPC: G02B026/00

    CPC classification number: G02B26/026 ,  C07D491/10

    Abstract: 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 1 wherein n is an integer representing the number of repeat nullCH2null units and R is nullH or nullCHnullCH2, and wherein a second portion of the surface contains substantially no spiropyran.

    Abstract translation: 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，R是-H或-CH = CH 2，并且其中表面的第二部分基本上不含螺吡喃。

    Photochromic electrophoretic ink display
    5.
    发明申请
    Photochromic electrophoretic ink display 有权
    光致变色电泳油墨显示

    公开(公告)号：US20030002132A1

    公开(公告)日：2003-01-02

    申请号：US09864902

    申请日：2001-05-24

    Applicant: Xerox Corporation

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

    IPC: G02B026/00

    CPC classification number: C09D11/50 ,  G02F2001/1678

    Abstract: Disclosed is an electrophoretic ink comprising a suspending fluid and, suspended in the suspending fluid, a plurality of particles comprising a mixture of a chelating agent and a spiropyran material of the formula 1 wherein n is an integer representing the number of repeat nullCH2null units and R is nullH or nullCHnullCH2, the particles being free to migrate within the suspending fluid under the influence of an electric field.

    Abstract translation: 公开了一种电泳墨水，其包含悬浮液，并悬浮在悬浮液中，多个颗粒包含螯合剂和下式的螺吡喃材料的混合物，其中n是表示重复-CH 2 - 单元数的整数， R是-H或-CH = CH 2，颗粒在电场的影响下在悬浮液中自由迁移。

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