Liquid crystal benzene derivatives
    2.
    发明授权
    Liquid crystal benzene derivatives 失效
    液晶苯衍生物

    公开(公告)号:US4422951A

    公开(公告)日:1983-12-27

    申请号:US358794

    申请日:1982-03-16

    摘要: Benzene derivatives useful as a component of liquid crystal compositions are provided which are expressed by the general formula ##STR1## wherein R represents a hydrogen atom or an alkyl group of 1 to 10 carbon atoms; R' represents a hydrogen atom, an alkyl group of 1 to 10 carbon atoms or an alkoxy group of 1 to 10 carbon atoms; and ##STR2## represents ##STR3## The derivatives exhibit small values of positive dielectric anisotropy; have broader liquid crystal temperature ranges; and in particular, have higher liquid crystalline-transparent points and yet have lower viscosities.

    摘要翻译: 提供用作液晶组合物组分的苯衍生物,其通式为其中R表示氢原子或1-10个碳原子的烷基的通式表示; R'表示氢原子,1〜10个碳原子的烷基或1〜10个碳原子的烷氧基; 并且表示衍生物表现出小的正介电各向异性值; 具有更宽的液晶温度范围; 特别是具有较高的液晶透明点,但具有较低的粘度。

    Carboxylic acid cyclohexyl ester derivatives
    4.
    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。

    High temperature liquid-crystalline ester compounds
    5.
    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
    7.
    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。

    2,4-Difluorobenzene derivatives
    8.
    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。

    High temperature liquid crystal substances of four rings and liquid
crystal compositions containing the same
    9.
    发明授权
    High temperature liquid crystal substances of four rings and liquid crystal compositions containing the same 失效
    四环的高温液晶物质和含有它们的液晶组合物

    公开(公告)号:US4472293A

    公开(公告)日:1984-09-18

    申请号:US513161

    申请日:1983-07-12

    CPC分类号: C09K19/3003 C09K19/3098

    摘要: Liquid crystal compounds which exhibit a liquid crystal phase within a broad temperature range and have a high clearing point and nevertheless a low viscosity, and liquid crystal compositions containing the same are provided, which liquid crystal compounds have positive dielectric anisotropy values and are expressed by the general formula ##STR1## wherein R represents hydrogen atom or an alkyl group of 1 to 10 carbon atoms; ##STR2## Y represents H or F; and X represent a halogen atom or CN.

    摘要翻译: 在广泛的温度范围内呈液晶相,具有高透明度和低粘度的液晶化合物,以及含有该液晶化合物的液晶组合物,具有正的介电各向异性值,由 通式(Ⅰ)其中R表示氢原子或1〜10个碳原子的烷基; Y表示H或F; X表示卤素原子或CN。

    Carboxylic acid ester derivatives of 4-fluorophenol
    10.
    发明授权
    Carboxylic acid ester derivatives of 4-fluorophenol 失效
    4-氟苯酚的羧酸酯衍生物

    公开(公告)号:US4399298A

    公开(公告)日:1983-08-16

    申请号:US233776

    申请日:1981-02-12

    IPC分类号: C09K19/20 C07C69/76

    CPC分类号: C09K19/2007

    摘要: Novel fluorine-containing organic compounds having a positive dielectric anisotropy, useful as component(s) of liquid crystal compositions, and liquid crystal compositions containing the same are provided. The compounds have the general formula ##STR1## R.sub.1 and R.sub.3 both are 1-10 C alkyl or alkoxy; R.sub.2 is H or 1-10 C alkyl; and R.sub.4 is 1-10 C alkyl.

    摘要翻译: 提供具有正的介电各向异性的新型含氟有机化合物,可用作液晶组合物的组分,以及含有它们的液晶组合物。 这些化合物具有通式“IMAGE”,其中Z是R1和R3都是1-10C烷基或烷氧基; R2是H或1-10C烷基; R4为1-10C烷基。