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    • 3. 发明授权
    • Phase change ink compositions
    • 相变油墨组合物
    • US06906118B2
    • 2005-06-14
    • US09948958
    • 2001-09-07
    • H. Bruce GoodbrandThomas W. SmithDaniel A. FoucherKathleen M. McGraneDina Popovic
    • H. Bruce GoodbrandThomas W. SmithDaniel A. FoucherKathleen M. McGraneDina Popovic
    • C09D11/00C09D11/02C09D11/10
    • C09D11/34
    • Disclosed is a phase change ink composition comprising a colorant and an ink vehicle, the ink being a solid at temperatures less than about 50° C. and exhibiting a viscosity of no more than about 20 centipoise at a jetting temperature of no more than about 160° 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.
    • 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,低聚物或聚合物比在第一温度下存在于墨中的氢键,使得在 第二温度低于第一温度下墨水的粘度。
    • 4. 发明授权
    • Photochromic gyricon display
    • 光致变色显示屏
    • US06549327B2
    • 2003-04-15
    • US09864386
    • 2001-05-24
    • Daniel A. FoucherRaj D. PatelNaveen ChopraPeter M. KazmaierErwin BuncelJames Wojtyk
    • Daniel A. FoucherRaj D. PatelNaveen ChopraPeter M. KazmaierErwin BuncelJames Wojtyk
    • G09G308
    • G02B26/026C07D491/10
    • 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.
    • 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。