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109 条记录 (耗时 0.022 秒)

    Cyclohexane derivative
    6.
    发明公开
    Cyclohexane derivative 失效
    Cyclohexanderivat。

    公开(公告)号：EP0647696A1

    公开(公告)日：1995-04-12

    申请号：EP93116355.4

    申请日：1993-10-08

    申请人： Chisso Corporation

    发明人： Onji, Yuichi ,  Ushioda, Makoto ,  Matsui, Shuichi ,  Kondo, Tomoyuki ,  Goto, Yasuyuki

    IPC分类号： C09K19/30 ,  C07C25/24 ,  C07C43/225

    CPC分类号： C07C17/23 ,  C07C17/093 ,  C07C17/16 ,  C07C17/2635 ,  C07C25/24 ,  C07C43/225 ,  C07C45/513 ,  C07C45/59 ,  C07C45/62 ,  C07C45/68 ,  C07C2601/14 ,  C09K19/3003 ,  C09K19/3028 ,  C09K2019/0444 ,  C07C25/18 ,  C07C47/457 ,  C07C47/24 ,  C07C49/697

    摘要： A novel liquid crystal material having an alkenyl group at the end of the molecule, and having a low viscosity, and when the compound is added, being able to reduce the threshold voltage of the resulting display element, is provided, the compound being expressed by the formula (I),

    wherein X is a F atom, a trifluoromethyl group, a trifluoromethoxy group or a difluoromethoxy group, -A- is 1,4-cyclohexylene or 1,4-phenylene, -B- is 1,4-cyclohexylene, l is 0, 1 or 2, m is 0, 1 or 2, l+m≧1, Z is -CH₂CH₂- or single bond, n is an integer of 0 to 4, R is a H atom or a linear or branched alkyl group of 1-7C, and when R is an alkyl group, the double bond has a trans-configuration. The compounds of the present invention are suitable as liquid crystal material for STN display element, and further is chemically stable; hence it is possible to prepare a composition having a superior multiplex characteristic and capable of effecting a low voltage drive.

    摘要翻译： 一种在分子末端具有烯基并具有低粘度的新型液晶材料，并且当添加化合物时能够降低所得显示元件的阈值电压，化合物由 式（I），其中X是F原子，三氟甲基，三氟甲氧基或二氟甲氧基，-A-是1,4-亚环己基或1,4-亚苯基，-B-是1， 4-亚环己基，l为0,1或2，m为0,1或2,1，m + 1，Z为-CH 2 CH 2 - 或单键，n为0〜4的整数，R为H 原子或1-7C的直链或支链烷基，当R为烷基时，双键具有反式构型。 本发明的化合物适用于STN显示元件的液晶材料，并且化学稳定; 因此可以制备具有优异的多重特性并能够进行低电压驱动的组合物。

    Alkenyl ether derivatives and liquid crystal composition containing the same
    8.
    发明公开
    Alkenyl ether derivatives and liquid crystal composition containing the same 失效
    Alkenyletherderder und diese enthaltendeFlüssigkristall-Zusammensetzungen。

    公开(公告)号：EP0388150A1

    公开(公告)日：1990-09-19

    申请号：EP90302667.2

    申请日：1990-03-13

    申请人： Chisso Corporation

    发明人： Uchida, Manabu ,  Ushioda, Makoto ,  Goto, Yasuyuki

    IPC分类号： C07C43/14 ,  C07C43/162 ,  C07C43/168 ,  C07C43/21 ,  C09K19/08

    CPC分类号： C07C43/215 ,  C07C43/162 ,  C07C43/168 ,  C07C2601/14 ,  C09K19/12 ,  C09K19/3003

    摘要： Alkenyl ether derivatives having a low viscosity, a good compatibility with other liquid crystalline compounds and suitable for use in the preparation of liquid crystal display elements, have the formula:
    R₁-CH₂-O-(CH₂) n -A₁-A₂-A₃-R₂      (1)
    in which R₁ represents a C₂-C₇ alkenyl group having a double bond at its terminal position or a double bond having a trans configuration at a position other than the terminal position; R₂ represents a C₁-C₁₀ alkyl or C₁-C₁₀ alkoxy group; A₁ and A₂ are the same or are different and each represents a 1,4-phenylene or trans-1,4-cyclohexylene group, or a single bond; and n is 1 or 2.

    摘要翻译： 具有低粘度，与其它液晶化合物的良好相容性并适用于制备液晶显示元件的烯基醚衍生物具有下式：R1-CH2-O-（CH2）n-A1-A2-A3- R2（1）其中R1表示其末端具有双键的C2-C7烯基或在末端以外的位置具有反式构型的双键; R2表示C1-C10烷基或C1-C10烷氧基; A1和A2相同或不同，各自表示1,4-亚苯基或反式-1,4-亚环己基或单键; n为1或2。

    Cyclohexane derivatives
    9.
    发明公开
    Cyclohexane derivatives 失效
    环己酯衍生物。

    公开(公告)号：EP0316715A2

    公开(公告)日：1989-05-24

    申请号：EP88118565.6

    申请日：1988-11-08

    申请人： Chisso Corporation

    发明人： Goto, Yasuyuki

    IPC分类号： C07C255/50 ,  C09K19/30

    CPC分类号： C07C255/50 ,  C07C2601/14 ,  C09K19/3028

    摘要： A compound having a relatively low viscosity, a broad nematic phase temperature range, a good compatibility with other liquid crystal components at low temperatures and a positive large dielectric anisotropy value, and a liquid crystal composition having a low viscosity and capable of realizing a low driving threshold voltage of display elements are provided, which compound is a cyclohexane derivative expressed by the formula
    wherein R is 1-10C alkyl group, ℓ is 1 or 2, m is 0 or 1 and ℓ + m = 2.

    摘要翻译： 具有较低粘度，宽向列相温度范围，在低温下与其它液晶组分的良好相容性和正大介电各向异性值的化合物和具有低粘度并能实现低驱动的液晶组合物 提供显示元件的阈值电压，该化合物是由式CHEM表示的环己烷衍生物，其中R为1-10C烷基，l为1或2，m为0或1，l + m = 2。