Anthraquinone dyes and liquid crystal compositions containing the dyes
    6.
    发明公开
    Anthraquinone dyes and liquid crystal compositions containing the dyes 失效
    蒽醌染料和含有液晶组合物,这些染料。

    公开(公告)号:EP0098736A2

    公开(公告)日:1984-01-18

    申请号:EP83303771.6

    申请日:1983-06-29

    IPC分类号: C09B1/26 C09K19/60

    CPC分类号: C09K19/603 C09B1/26

    摘要: Anthraquinone dyes are of the general formula:
    wherein R is a trans-4-alkylcyclohexyl, trans-4-cyclohexyl- cyclohexyl, trans-4-alkylcyclohexylcyclohexyl, p-(trans-4--alkylcyclohexyl)phenyl or alkyl, aralkyl or aryl group each of which may be substituted with specified organic groups; and R 2 is an alkyl, cycloalkyl, aralkyl or aryl group each of which may be substituted with specified organic groups; with provisos as to the values of R 1 and R 2 together.
    The dyes have a cyan color and excellent order parameter, solubility and stability.
    In an electro-optic cell, a liquid crystal composition (9) containing the dye is interposed between two facing electrode plates (8) and permits the realization of good color displays utilizing the guest-host effect of a liquid crystal.

    摘要翻译: 蒽醌染料是通式:... ... worin - [R <1>是一个反式-4-烷基环己基,反式-4- -cyclohexylcyclohexyl,反式-4- alkylcyclohexylcyclohexy,对 - (反式-4-烷基环己基)苯基或烷基 ,芳烷基或芳基的每一个可以是substituiertem与指定的有机基团; 且R 2是烷基,环烷基,芳烷基或芳基的每一个可与指定的有机基团substituiertem; 与附带条件为R的<1>和R <2>一起的值。 ... 的染料有青色和优异的顺序参数,溶解度和稳定性。 ... 在电光细胞,含有该染料的液晶组合物(9)被插入两个相对的电极板(8)之间,并允许实现良好的彩色显示器利用了液晶的宾主效应的 ,