Cyclohexane derivative
    53.
    发明授权
    Cyclohexane derivative 失效
    环己烷衍生物

    公开(公告)号:US4908152A

    公开(公告)日:1990-03-13

    申请号:US331379

    申请日:1989-03-31

    申请人: Yasuyuki Goto

    发明人: Yasuyuki Goto

    CPC分类号: C07C25/18 C09K19/3003

    摘要: A novel liquid crystal compound useful as a component of liquid crystal compositions, and particularly suitable to improvement in low temperature characteristics, and a liquid crystal composition containing the compound are provided, which compound is a 2-alkyl-5-[trans-4-(trans-4-alkylcyclohexyl)cyclohexyl]fluorobenzene expressed by the formula ##STR1## wherein R.sup.1 and R.sup.2 each represent an alkyl group of 2 to 10 carbon atoms.

    摘要翻译: 提供了可用作液晶组合物的组分,特别适合于改善低温特性的新型液晶化合物和含有该化合物的液晶组合物,该化合物是2-烷基-5- [反-4- (反式-4-烷基环己基)环己基]氟苯由式(a)表示,其中R 1和R 2各自表示2至10个碳原子的烷基。

    Tolan derivative and a liquid crystal mixture containing the same
    55.
    发明授权
    Tolan derivative and a liquid crystal mixture containing the same 失效
    托兰衍生物和含有它的液晶混合物

    公开(公告)号:US4778620A

    公开(公告)日:1988-10-18

    申请号:US79997

    申请日:1987-07-31

    摘要: A novel tolan derivative compound as a liquid crystal substance having a low viscosity and a good compatibility with existing liquid crystals at low temperatures in addition to a large optical anisotropy value and a high clearing point, and a liquid crystal mixture containing the above compound are provided, which compound is expressed by the formula ##STR1## wherein R.sup.1 represents an alkyl group of 1 to 10 carbon atoms, R.sup.2 represents an alkyl group of 1 to 10 carbon atoms, X represents --CH.sub.2 CH.sub.2 -- and A represents an H atom or an F atom.

    摘要翻译: 除了具有大的光学各向异性值和高的透明点之外,还提供了一种具有低粘度和低温下与现有液晶的良好相容性的液晶物质和含有上述化合物的液晶混合物的新型苯乙烯衍生物化合物 ,该化合物由式(I)表示,其中R 1表示1-10个碳原子的烷基,R 2表示1-10个碳原子的烷基,X表示-CH 2 CH 2 - ,A表示H原子 或F原子。

    2-cyano-4-halogenophenyl substituted-benzoates
    57.
    发明授权
    2-cyano-4-halogenophenyl substituted-benzoates 失效
    2-氰基-4-卤代苯基取代的苯甲酸酯

    公开(公告)号:US4659501A

    公开(公告)日:1987-04-21

    申请号:US692166

    申请日:1985-01-17

    摘要: Novel liquid crystal compounds, 2-cyano-4-halogenophenyl substituted-benzoates suitable as a component constituting a liquid crystal composition which exhibits a negative dielectric anisotropy, and a liquid crystal composition containing the same are provided, which benzoates are expressed by the formula ##STR1## wherein R represents an alkyl group or an alkoxy group each of 1 to 10 carbon atoms; ##STR2## represents ##STR3## or ##STR4## X and Y each represents H or a halogen atom of F or Cl and at least one of X and Y is necessarily H; and Z represents a halogen atom of F, Cl or Br.

    摘要翻译: 提供适合作为构成具有负介电各向异性的液晶组合物的组分的2-氰基-4-卤代苯基取代的苯甲酸酯和含有它们的液晶组合物的新型液晶化合物,其中苯甲酸酯由式 其中R表示1〜10个碳原子的烷基或烷氧基; 表示,X和Y各自表示H或F或Cl的卤素原子,X和Y中的至少一个必须为H; Z表示F,Cl或Br的卤素原子。

    Fluorovinyl derivative, liquid crystal composition and liquid crystal display device
    60.
    发明授权
    Fluorovinyl derivative, liquid crystal composition and liquid crystal display device 有权
    氟乙烯衍生物,液晶组合物和液晶显示装置

    公开(公告)号:US08765011B2

    公开(公告)日:2014-07-01

    申请号:US13468779

    申请日:2012-05-10

    摘要: To provide a liquid crystal compound having general physical properties required for the compound, namely, a high stability to heat, light and so forth, a small viscosity, a refractive index anisotropy value having a suitable magnitude, a dielectric constant anisotropy value having a suitable magnitude and steep electro-optical characteristics, a wide temperature range of a nematic phase, and an excellent compatibility with other liquid crystal compounds, in particular, a liquid crystal compound having a wide temperature range of the nematic phase; the compound is represented by formula (1): wherein R is alkenyl having 2 to 20 carbons; ring A1 and ring A2 are independently 1,4-cyclohexylene, or 1,4-phenylene in which at least one of hydrogen may be replaced by fluorine; Z1 and Z2 are independently a single bond, —CH2CH2—, —CH═CH—, —CH2O— or —OCH2—; and n is 0 or 1.

    摘要翻译: 为了提供具有化合物所需的一般物理性能的液晶化合物,即对热,光等具有高稳定性,具有适当大小的粘度小,折射率各向异性值,具有合适的介电常数各向异性值 幅度和陡峭的电光特性,向列相的宽温度范围,以及与其它液晶化合物,特别是具有宽的向列相温度范围宽的液晶化合物的相容性优异。 该化合物由式(1)表示:其中R是具有2至20个碳的烯基; 环A1和环A2独立地为1,4-亚环己基或其中至少一个氢可被氟取代的1,4-亚苯基; Z 1和Z 2独立地是单键,-CH 2 CH 2 - , - CH = CH - , - CH 2 O-或-OCH 2 - ; n为0或1。