High temperature liquid-crystalline ester compounds
    21.
    发明授权
    High temperature liquid-crystalline ester compounds 失效
    高温液晶酯化合物

    公开(公告)号:US4701547A

    公开(公告)日:1987-10-20

    申请号:US683631

    申请日:1984-12-19

    CPC分类号: C07C255/00 C09K19/3068

    摘要: New liquid-crystalline ester compounds which exhibit a liquid-crystalline phase within a broad temperature range and have a positive, dielectric anisotropy, and a liquid-crystalline composition comprising the same are provided which ester compounds are expressed by the general formula ##STR1## wherein R represents hydrogen atom or an alkyl group of 1 to 10 carbon atoms; ##STR2## each represent ##STR3## X represents ##STR4## Y represents hydrogen atom, F, Cl or CN; and Z represents F, Cl or CN.

    摘要翻译: 提供了在广泛的温度范围内具有正的介电各向异性的液晶相和包含该液晶的组合物的新的液晶酯化合物,其中酯化合物由通式(IMAGE)( I)其中R表示氢原子或1-10个碳原子的烷基; 每个表示 X表示 Y表示氢原子,F,Cl或CN; Z表示F,Cl或CN。

    High temperature liquid-crystalline ester compounds
    22.
    发明授权
    High temperature liquid-crystalline ester compounds 失效
    高温液晶酯化合物

    公开(公告)号:US4502974A

    公开(公告)日:1985-03-05

    申请号:US477973

    申请日:1983-03-23

    CPC分类号: C07C255/00 C09K19/3068

    摘要: New liquid-crystalline ester compounds which exhibit a liquid-crystalline phase within a broad temperature range and have a positive, dielectric anisotropy, and a liquid-crystalline composition comprising the same are provided which ester compounds are expressed by the general formula ##STR1## wherein R represents hydrogen atom or an alkyl group of 1 to 10 carbon atoms; ##STR2## X represents ##STR3## Y represents hydrogen atom, F, Cl or CN; and Z represents F, Cl or CN.

    摘要翻译: 提供了在广泛的温度范围内具有正的介电各向异性的液晶相和包含该液晶的组合物的新的液晶酯化合物,其中酯化合物由通式(IMAGE)( I)其中R表示氢原子或1-10个碳原子的烷基; X表示,Y表示氢原子,F,Cl或CN; Z表示F,Cl或CN。

    Carboxylic acid cyclohexyl ester derivatives
    23.
    发明授权
    Carboxylic acid cyclohexyl ester derivatives 失效
    羧酸环己酯衍生物

    公开(公告)号:US4487954A

    公开(公告)日:1984-12-11

    申请号:US303523

    申请日:1981-09-17

    摘要: Liquid crystal compounds useful as a component of liquid crystal compositions having superior actuation characteristics within a broader temperature range are provided, which compounds are carboxylic acid cyclohexyl ester derivatives expressed by the general formula ##STR1## wherein A represents ##STR2## R- or RO-; B represents ##STR3## R represents an alkyl group or an alkoxy group, both having 1 to 10 carbon atoms; and R' represents an alkyl group having 1 to 10 carbon atoms.

    摘要翻译: 提供了可用作在较宽温度范围内具有优异致动特性的液晶组合物组分的液晶化合物,该化合物是由通式(I)表示的羧酸环己酯衍生物,其中A表示 > <图像> + TR R-或RO-; B表示 R表示具有1-10个碳原子的烷基或烷氧基; R'表示碳原子数1〜10的烷基。

    2,4-Difluorobenzene derivatives
    25.
    发明授权
    2,4-Difluorobenzene derivatives 失效
    2,4-二氟苯衍生物

    公开(公告)号:US4548731A

    公开(公告)日:1985-10-22

    申请号:US494032

    申请日:1983-05-12

    摘要: Novel compounds having a small dielectric anisotropy value (.DELTA..epsilon.), a low viscosity and a small .gamma. value (ratio of saturation voltage to threshold voltage) indicating sharpness, and liquid crystal compositions containing the same are provided, which compounds are 2,4-difluorobenzene derivatives of trans-4-alkylcyclohexanes expressed by the general formula ##STR1## wherein n is 1 or 2, m is 0 or 1 and R represents an alkyl group of 1-10 carbon atoms.

    摘要翻译: 提供具有小的介电各向异性值(DELTAε),低粘度和较小的伽马值(饱和电压与阈值电压的比率)表示清晰度的新型化合物和含有该化合物的液晶组合物, 由通式表示的反式-4-烷基环己烷的二氟苯衍生物,其中n为1或2,m为0或1,R为1-10个碳原子的烷基。