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29 条记录 (耗时 0.024 秒)

    Nematic liquid crystals for display devices
    5.
    发明授权
    Nematic liquid crystals for display devices 失效
    用于显示装置的向列型液晶

    公开(公告)号：US4372871A

    公开(公告)日：1983-02-08

    申请号：US204292

    申请日：1980-11-05

    申请人： Kazuhisa Toriyama ,  Tamihito Nakagomi ,  Hisato Sato ,  Yutaka Fujita ,  Katsuhiko Morita ,  Yoshi Arai

    发明人： Kazuhisa Toriyama ,  Tamihito Nakagomi ,  Hisato Sato ,  Yutaka Fujita ,  Katsuhiko Morita ,  Yoshi Arai

    IPC分类号： C09K19/30 ,  C09K19/42 ,  C09K19/44 ,  C09K19/46 ,  C09K19/48 ,  G02F1/13 ,  G02F1/133 ,  G09F9/35 ,  C09K3/34

    CPC分类号： C09K19/3068 ,  C09K19/42 ,  G02F1/13306

    摘要： A nematic liquid crystal composition composed of (i) at least one compound of the general formula ##STR1## wherein R.sub.1 represents n-C.sub.m H.sub.2m+1, R.sub.2 represents n-C.sub.q H.sub.2q+1 -O, and m and q are integers of 1 to 10,(ii) at least one compound selected from the group consisting of nematic liquid crystalline compounds having positive dielectric anisotropy and homologs thereof, and (iii) as an optional ingredient, at least one compound selected from the group consisting of nematic liquid crystalline compounds having negative dielectric anisotropy and homologs thereof. This liquid crystal composition is colorless and chemically stable and has superior multiplexing drive characteristics. These properties render it useful as a display element.

    摘要翻译： 一种向列型液晶组合物，其由（i）至少一种通式为“IMAGE”的化合物，其中R1表示n-CmH2m + 1，R2表示n-CqH2q + 1-O，m和q为1〜10的整数 ，（ii）选自由具有正的介电各向异性及其同系物的向列型液晶化合物组成的组中的至少一种化合物，和（iii）作为任意成分的至少一种选自具有 负介电各向异性及其同系物。 该液晶组合物无色，化学稳定，具有优异的复合驱动特性。 这些属性使其作为显示元素很有用。

    Multicolor recording material
    9.
    发明授权
    Multicolor recording material 失效
    多色录音材料

    公开(公告)号：US5168029A

    公开(公告)日：1992-12-01

    申请号：US474568

    申请日：1990-02-02

    申请人： Akira Igarashi ,  Yutaka Fujita

    发明人： Akira Igarashi ,  Yutaka Fujita

    IPC分类号： G03F7/004 ,  B41M5/28 ,  B41M5/34 ,  G03C1/00 ,  G03C1/675 ,  G03C1/73

    CPC分类号： B41M5/287 ,  B41M5/34 ,  G03C1/002 ,  G03C1/732

    摘要： A multicolor recording material is disclosed, which comprises a support having provided thereon at least two layers each containing a leuco dye which is capable of forming a color by oxidation and a photo-oxidizing agent, wherein the leuco dyes contained in each layer are capable of forming different color from each other and the photo-oxidizing agents contained in each layer respond to light having different wavelength from each other. Another multicolor recording material is also disclosed, which comprises a support having provided thereon a layer containing at least two kinds of heat-responsive microcapsules which have different response temperature from each other, each containing a leuco dye which is capable of forming a color by oxidation and a photo-oxidizing agent, wherein the leuco dyes contained in each kind of microcapsule are capable of forming different color from each other and the photo-oxidizing agents contained in each kind of microcapsule respond to light having different wavelength from each other.

    摘要翻译： 公开了一种多色记录材料，其包括其上提供有至少两层的载体，每层包含能够通过氧化形成颜色的无色染料和光氧化剂，其中每层中包含的无色染料能够 形成彼此不同的颜色，并且每层中包含的光氧化剂对彼此具有不同波长的光有反应。 还公开了另一种多色记录材料，其包括其上设置有包含至少两种彼此具有不同响应温度的热响应微胶囊的层的载体，每个包含能够通过氧化形成颜色的无色染料 和光氧化剂，其中每种微胶囊中所含的无色染料能够形成彼此不同的颜色，并且每种微胶囊中包含的光氧化剂对彼此具有不同波长的光有反应。

    Multi-color recording materials
    10.
    发明授权
    Multi-color recording materials 失效

    公开(公告)号：US4985331A

    公开(公告)日：1991-01-15

    申请号：US441664

    申请日：1989-11-27

    申请人： Keiso Saeki ,  Fumiaki Shinozaki ,  Yutaka Fujita

    发明人： Keiso Saeki ,  Fumiaki Shinozaki ,  Yutaka Fujita

    IPC分类号： G03F7/004 ,  B41M5/26 ,  B41M5/28 ,  B41M5/30 ,  B41M5/34 ,  B41M5/48 ,  G03C1/00 ,  G03C1/73

    CPC分类号： B41M5/48 ,  G03C1/002 ,  G03C1/732

    摘要： Multi-color recording materials where the color forming layers are established on the same side of the support are disclosed. The multi-color recording system may be either of:(1) a two-color recording material comprising a support having provided thereon:(a) a light-sensitive heat-sensitive color forming layer comprising (i) microcapsules containing a leuco dye which is capable of forming a color by oxidation and a photo-oxidizing agent and (ii) a reducing agent; and(b) a heat-sensitive color forming layer having a color forming temperature differing from the glass transition temperature of the microcapsule walls, and which comprises an electron donating leuco dye capable of forming a color of a hue differing from that of the light-sensitive heat-sensitive layer and an electron accepting compound capable of reacting with the electron donating lueuco dye to form a color;(2) a multi-color recording material comprising a support having provided thereon:(a) a light-sensitive heat-sensitive color forming layer comprising (i) at least two types of microcapsules each containing a leuco dye capable of forming a color by oxidization and a photo-oxidizing agent and (ii) a reducing agent, wherein the polymer walls of the at least two microcapsules have different glass transition temperatures from each other, and the leuco dyes contained in the microcapsules have different hues from each other; and(b) a heat-sensitive color forming layer as described above; or(3) a multi-color recording material comprising a support having provided thereon:(a) a light-sensitive heat-sensitive color forming layer comprising (i) at least two types of microcapsules each containing a leuco dye capable of forming colors by oxidation and a photo-oxidizing agent and (ii) a reducing agent, wherein the leuco dyes contained in the microcapsules have different hues from each other, and the photo-oxidizing agents contained in the microcapsules are activated by actinic light of different wavelengths; and(b) a heat-sensitive color forming layer as described above.