Nematic liquid crystalline compounds
    2.
    发明授权
    Nematic liquid crystalline compounds 失效
    向列液晶化合物

    公开(公告)号:US4472592A

    公开(公告)日:1984-09-18

    申请号:US507916

    申请日:1983-06-27

    摘要: A nematic liquid crytalline compound selected from the group consisting of compounds represented by the general formula ##STR1## compounds represented by the general formula ##STR2## compounds represented by the general formula ##STR3## and compounds represented by the general formula ##STR4## wherein R and R', independently from each other, represent a linear alkyl group having 1 to 7 carbon atoms, and each cyclohexane ring is arranged in a trans(equatorial-equatorial) form. These compounds have higher nematic phaseisotropic liquid phase transition temperatures than conventional liquid crystalline compounds.

    摘要翻译: 选自由通式(IMAGE)表示的化合物所组成的组的向列液体半胱氨酸化合物,其通式为通式(IMAGE)所示的化合物,由通式< IMAGE>表示的化合物和通式 和R'彼此独立地表示具有1至7个碳原子的直链烷基,并且每个环己烷环以反(赤道 - 赤道)形式排列。 这些化合物具有比常规液晶化合物更高的向列相向液相转变温度。

    Nematic liquid crystalline compounds
    7.
    发明授权
    Nematic liquid crystalline compounds 失效
    向列液晶化合物

    公开(公告)号:US4207252A

    公开(公告)日:1980-06-10

    申请号:US955351

    申请日:1978-10-27

    IPC分类号: C09K19/28 C07C153/11

    CPC分类号: C09K19/28

    摘要: A nematic liquid crystalline compound of the general formula ##STR1## wherein R.sub.1 represents a linear alkyl group containing 3 to 8 carbon atoms and R.sub.2 represents a linear alkyl g group containing 3 to 7 carbon atoms, or a cyano group, with the proviso that when R.sub.2 represents a linear alkyl group containing 3 carbon atoms, R.sub.1 does not represent a linear alkyl group containing 3 or 7 carbon atoms, and when R.sub.2 represents a cyano group, R.sub.1 does not represent a linear alkyl group containing 3 carbon atoms.

    摘要翻译: 一种通式为“IMAGE”的向列型液晶化合物,其中R 1表示含有3至8个碳原子的直链烷基,R 2表示含3至7个碳原子的直链烷基,或氰基,条件是当 R2表示含有3个碳原子的直链烷基,R1不表示含有3或7个碳原子的直链烷基,当R 2表示氰基时,R 1不表示含有3个碳原子的直链烷基。