Phthalonitrile derivatives and liquid crystal compositions containing them
    2.
    发明公开
    Phthalonitrile derivatives and liquid crystal compositions containing them 失效
    邻苯二甲腈衍生物和含有它们的液晶组合物

    公开(公告)号:EP0087963A2

    公开(公告)日:1983-09-07

    申请号:EP83301036.6

    申请日:1983-02-25

    摘要: Phthalonitrile derivatives are represented by the formula (I):
    wherein X and Y each represents a C1-9 alkyl or alkoxy group,
    The compounds are prepared by cyclisation reaction of a butadiene derivative X-CH=CH-CH-CH-Y with fumaronitrile or dicycanoacetylene, followed by oxidation or bromination.
    The compounds have a large negative dielectric anis- tropy, and wide liquid crystal range, and are useful, alone or with other liquid crystals, in liquid crystal display devices.

    wherein R represents H,
    or a halogen atom, where m is an integer of 1 to 9 and n is 0, 1 or 2, but at least one of X and Y does not represents a methyl group, and Y does not represent an alkyl or alkoxy group when X represents
    and R' represents an alkyl group.

    摘要翻译: 邻苯二甲腈衍生物由式(I)表示:其中X和Y各自表示C1-9烷基或烷氧基。所述化合物通过丁二烯衍生物X-CH = CH-CH-CH-Y与富马腈的环化反应来制备 或二氰基乙炔,然后氧化或溴化。 这些化合物具有大的负介电各向异性和宽的液晶范围,并且在液晶显示器件中单独或与其他液晶一起使用是有用的。 其中R表示H或卤素原子,其中m是1至9的整数,并且n是0,1或2,但是X和Y中的至少一个不表示甲基,且Y不表示烷基中的烷基 或者当X代表和R'代表烷基时为烷氧基。

    Anthraquinone dyes and liquid crystal compositions containing the dyes
    4.
    发明公开
    Anthraquinone dyes and liquid crystal compositions containing the dyes 失效
    蒽醌染料和含有染料的液晶组合物

    公开(公告)号:EP0098736A3

    公开(公告)日:1986-08-13

    申请号:EP83303771

    申请日:1983-06-29

    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: 蒽醌染料具有以下通式:其中R为反式-4-烷基环己基,反式-4-环己基环己基,反式-4-烷基环己基环己基,对(反式-4-烷基环己基)苯基或烷基,芳烷基或芳基 它们中的每一个可以被指定的有机基团取代; R2是可以被特定的有机基团取代的烷基,环烷基,芳烷基或芳基; 与R1和R2的值一起提供附加条件。 该染料具有青色和优良的有序参数,溶解性和稳定性。 在电光学单元中,含有染料的液晶组合物(9)置于两个相面对的电极板(8)之间,并允许利用液晶的宾主效应实现良好的彩色显示。

    Pleochroic azo dyes, a liquid crystal composition containing the azo dyes and a display device using the liquid crystal composition
    7.
    发明公开
    Pleochroic azo dyes, a liquid crystal composition containing the azo dyes and a display device using the liquid crystal composition 失效
    含有相同的液晶组合物,多向色性偶氮染料,和光使用相同的显示装置。

    公开(公告)号:EP0080153A1

    公开(公告)日:1983-06-01

    申请号:EP82110578.0

    申请日:1982-11-16

    IPC分类号: C09K19/60 C09B29/00 C09B31/00

    摘要: Pleochroic azo dyes represented by the formula (I):
    wherein X represents group -OCOR 1 or -COOR' (wherein R 1 represents an alkyl group, an alkoxyalkyl group, an alkoxyphenyl group, an alkylcyclohexyl group, an alkoxyalkylcyclohexyl group, a cycloalkylcyclohexyl group, an alkoxycyclohexyl group, or a phenyl group substituted by a substituent selected from among an alkyl group containing 3 to 18 carbon atoms, an alkoxyalkyl group, a cycloalkyl group, an aryl group, a cyano group, a halogen atom, an acyloxy group, a carboxylic acid ester group, and an arylazo group); Y represents a hydrogen atom, an alkyl group, an alkoxyalkyl group, a cycloalkyl group, an alkoxy group, a nitro group, a cyano group, a carboxylic acid ester group, an acyloxy group, an alkylsulfonyl group, an aryl group, a halogen atom, or group
    wherein R 2 and R 3 each represents a hydrogen atom, an alkyl group, an alkoxyalkyl group, or R 2 and R 3 may be connected to each other to form a nitrogen-containing ring together with the adjacent nitrogen atom; Z' to Z 9 each represents a hydrogen atom, a halogen atom, a methyl group, a hydroxy group, a methoxy group or a cyano group, or Z 1 , Z 2 and Z 3 may be connected to R 2 or R 3 to form a nitrogen-containing ring, or Z 1 and Z 2 , Z' and Z 5 , or Z 7 and Z 8 may be connected to each other to form an aromatic ring; at least one of

    and n represents 0, 1 or 2, a liquid crystal composition containing the pleochroic azo dyes and a display device using the liquid crystal composition.