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    Liquid-crystal mixture with a pleochroic anthraquinone dye, and method for producing such a dye
    8.
    发明授权
    Liquid-crystal mixture with a pleochroic anthraquinone dye, and method for producing such a dye 失效
    具有多色性蒽醌染料的液晶混合物，以及这种染料的制造方法

    公开(公告)号：US4491532A

    公开(公告)日：1985-01-01

    申请号：US301046

    申请日：1981-09-10

    申请人： Gunther Scherowsky ,  Alexander Moller ,  Gerd Heppke ,  Burkhard Knippenberg

    发明人： Gunther Scherowsky ,  Alexander Moller ,  Gerd Heppke ,  Burkhard Knippenberg

    IPC分类号： C09B1/00 ,  C09B1/02 ,  C09B1/14 ,  C09B1/22 ,  C09B1/28 ,  C09B1/50 ,  C09B1/503 ,  C09B1/515 ,  C09B1/54 ,  C09B55/00 ,  C09K19/60 ,  G02F1/137 ,  C09K3/34 ,  C09B1/16

    CPC分类号： C09B1/50 ,  C09B1/22 ,  C09B55/007 ,  C09K19/603

    摘要： Liquid-crystal mixture with a pleochroic anthraquinone dye of the general formula ##STR1## with R.sup.1, R.sup.3, R.sup.4, R.sup.6 =H, OH, OCH.sub.3, NH.sub.2, NHCH.sub.3, NO.sub.2, characterized by the feature that ##STR2## (R.sup.7 =H, alkyl, cycloalkyl, alkoxy, alkylmercapto, amino, alkylamino, dialkylamino, nitro, cyano, halogen), ##STR3## COOR.sup.9, CH.sub.2 --OR.sup.9 (R.sup.8 =H, alkyl, cycloalkyl, alkoxy, alkylmercapto, amino, alkylamino, dialkylamino, nitro, cyano, halogen); R.sup.9 =H, alkyl and either R.sup.1, R.sup.4 =H, OH, NH.sub.2, NHCH.sub.3, NO.sub.2, NHCH.sub.3, NO.sub.2, OCH.sub.3, where at least one of the two radical is an NH.sub.2 or an NHCH.sub.3, R.sup.3 =R.sup.6 =H, or R.sup.3, R.sup.6 =H, OH, NH.sub.2, NHCH.sub.3, NO.sub.2, OCH.sub.3, where at least one of the two radicals is an NH.sub.2 or an NHCH.sub.3, R.sup.1 =R.sup.4 =H.

    摘要翻译： 具有通式“IMAGE”的具有R1，R3，R4，R6 = H，OH，OCH3，NH2，NHCH3，NO2的双色性蒽醌染料的液晶混合物，其特征在于， 烷基，烷基，烷基氨基，烷基氨基，硝基，烷基氨基，烷基氨基，烷基氨基，烷基氨基， 氰基，卤素）; R 9 = H，烷基和R 1，R 4 = H，OH，NH 2，NHCH 3，NO 2，NHCH 3，NO 2，OCH 3，其中两个基团中的至少一个是NH 2或NHCH 3，R 3 = R 6 = H或R 3 ，R6 = H，OH，NH2，NHCH3，NO2，OCH3，其中两个基团中的至少一个是NH 2或NHCH 3，R 1 = R 4 = H。

    Process for the preparation of quinizarin
    9.
    发明授权
    Process for the preparation of quinizarin 失效
    制备醌嗪的方法

    公开(公告)号：US4387054A

    公开(公告)日：1983-06-07

    申请号：US43805

    申请日：1979-05-30

    申请人： Reinold Schmitz

    发明人： Reinold Schmitz

    IPC分类号： C07C46/00 ,  C07C45/00 ,  C07C50/34 ,  C07C67/00 ,  C09B1/04 ,  C07C49/68 ,  C09B1/02

    CPC分类号： C09B1/04

    摘要： A process, which does not pollute the environment, for the preparation of quinizarin consists in reacting a mixture of phthalic anhydride p-chlorophenol, sulphuric acid and boric acid or boric anhydride at elevated temperatures in such a way that, in the reaction mixture, there is sulphuric acid preferably containing 10-20% of free SO.sub.3 and the weight ratio of p-chlorophenol to the total amount of H.sub.2 SO.sub.4 +SO.sub.3 is 1:1.5 to 4.0. Yields and purity of the product are outstanding, despite the concentrated procedure.

    摘要翻译： 不污染环境的方法是用于制备醌iz嗪的方法是在邻苯二甲酸酐对氯苯酚，硫酸和硼酸或硼酸酐的混合物在升高的温度下反应，使得在反应混合物中 是硫酸，优选含有10-20％的游离SO 3，对氯苯酚与H 2 SO 4 + SO 3的总量的重量比为1:1.5至4.0。 尽管集中的程序，产品的产量和纯度是突出的。

    Anthraquinoid dyes
    10.
    发明授权
    Anthraquinoid dyes 失效
    ANTHRAQUINOID DYES

    公开(公告)号：US4136100A

    公开(公告)日：1979-01-23

    申请号：US834411

    申请日：1977-09-19

    申请人： Gerhard Epple

    发明人： Gerhard Epple

    IPC分类号： C09B1/58 ,  C07C49/68 ,  C09B1/02 ,  C09B1/42

    CPC分类号： C09B1/585

    摘要： Dyes of the formula ##STR1## where Y is alkyl of 3 to 18 carbon atoms or phenyl which is unsubstituted or substituted by chlorine, bromine, alkoxy of 1 to 4 carbon atoms, alkoxycarbonyl (where alkoxy is of 1 to 4 carbon atoms), phenoxy, benzoylamino, trifluoromethyl or alkylcarbonyl (where alkyl is of 1 to 6 carbon atoms), X is hydrogen or ##STR2## where R is alkyl of 1 to 17 carbon atoms, phenylamino, phenyl, alkoxycarbonyl-alkyl (where alkoxy is of 1 to 8 carbon atoms and alkyl of 2 to 4 carbon atoms), alkoxy of 1 to 10 carbon atoms or alkoxyalkyl of a total of 3 to 12 carbon atoms, A is chlorine, bromine, alkyl of 1 to 4 carbon atoms or alkoxy of 1 to 4 carbon atoms, B is hydrogen or nitro and n is 0, 1, 2 or 3. On cellulose and cellulose-containing textiles, the dyes, used in the presence of swelling agents, give bluish violet to greenish blue dyeings having very good fastness properties.