Phenylpyridine derivative
    7.
    发明授权
    Phenylpyridine derivative 失效
    苯基吡啶衍生物

    公开(公告)号:US4772416A

    公开(公告)日:1988-09-20

    申请号:US28690

    申请日:1987-03-20

    摘要: A novel phenylpyridine derivative which exhibits a positive dielectric anisotropy and is useful as a component of liquid crystal materials and also has a broad temperature range of liquid crystal phases, a high clearing point and a superior compatibility with other liquid crystal compounds or liquid crystal compositions, and a composition containing the derivative are provided. The phenylpyridine derivative is expressed by the formula ##STR1## wherein R represents an alkyl group of 1 to 10 carbon atoms, X represents H or F; Y represents F, --CN or an alkyl group or an alkoxy group of 1 to 10 carbon atoms; and m represents 0 or 1.

    摘要翻译: 一种新型苯基吡啶衍生物,其具有正的介电各向异性,并且可用作液晶材料的组分,并且还具有液晶相的宽温度范围,高透明度和与其它液晶组合物或液晶组合物的优异相容性, 并提供含有该衍生物的组合物。 苯基吡啶衍生物由下式表示:其中R表示1〜10个碳原子的烷基,X表示H或F; Y表示F,-CN或1-10个碳原子的烷基或烷氧基; m表示0或1。

    2-cyano-4-halogenophenyl substituted-benzoates
    10.
    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。