Hydrosoluble pyrazolone trisazo dyestuffs derived from
4,4'-diamino-benzenesulfanilide
    1.
    发明授权
    Hydrosoluble pyrazolone trisazo dyestuffs derived from 4,4'-diamino-benzenesulfanilide 失效
    衍生自4,4'-二氨基 - 苯磺酰苯胺的水溶性吡唑啉酮三偶氮染料

    公开(公告)号:US4342684A

    公开(公告)日:1982-08-03

    申请号:US772897

    申请日:1977-02-28

    摘要: Dyestuff of the formula: ##STR1## in which A represents a mono- or disulphonated naphthalene residue which is unsubstituted or substituted by a hydroxy group and/or by an amino group, B represents an aliphatic, aromatic or heterocyclic residue and D represents the residue of a pyrazolone or an ester or amide of .beta.-ketonic acid; process for the coloration of animal or polyamide fibres in which the coloring agent is a dyestuff of the above formula and articles based on animal or polyamide fibres colored by means of such a dyestuff.

    摘要翻译: 下式的染料:其中A表示未取代或被羟基和/或被氨基取代的单或二磺化萘残基,B表示脂族,芳族或杂环残基,D表示 表示吡唑啉酮或β-酮酸的酯或酰胺的残基; 着色剂为上述式的染料的动物或聚酰胺纤维的着色方法和基于通过这种染料着色的动物或聚酰胺纤维的制品。

    Symmetrical trisazo dye obtained by coupling tetrazotized
4-4'-diaminozobenzene with 2-carboxymethylamin0-8-naphthol-6-sulphonic
acid
    3.
    发明授权
    Symmetrical trisazo dye obtained by coupling tetrazotized 4-4'-diaminozobenzene with 2-carboxymethylamin0-8-naphthol-6-sulphonic acid 失效
    通过将四唑化的4-4'-二氨基苯与2-羧甲基甲基氨基-8-萘酚-6-磺酸偶联得到的对称三偶氮染料

    公开(公告)号:US4248776A

    公开(公告)日:1981-02-03

    申请号:US33225

    申请日:1979-04-25

    CPC分类号: C09B35/35

    摘要: The present invention concerns a new acid trisazo dye suited for the dyeing of natural and synthetic polyamidic fibres and particularly for the dyeing of leather. The dye has the following structural formula: ##STR1## and dyes in a full black shade. The present invention also includes a process for the preparation of dye (I) and comprises tetrazotizing 4-4' diaminoazobenzene and then coupling the tetrazo-compound thus formed with 2 molecules of 2-carboxymethylamino-8-naphtol-6-sulphonic acid (carboxy methyl-gamma acid) in an alkaline medium.

    摘要翻译: 本发明涉及适用于天然和合成聚酰胺纤维染色的新型酸性三偶氮染料,特别是用于染色皮革。 该染料具有以下结构式:(I)和全黑色染料。 本发明还包括制备染料(I)的方法,并且包括将4-4'-二氨基偶氮苯四唑化,然后将由此形成的双偶氮化合物与2分子的2-羧甲基氨基-8-萘酚-6-磺酸(羧基 甲基-γ酸)在碱性介质中。

    Anionic azo dyes having a 3-dibenzofuranyl diazo component radical
optionally having a 2- or 8-sulfo group
    4.
    发明授权
    Anionic azo dyes having a 3-dibenzofuranyl diazo component radical optionally having a 2- or 8-sulfo group 失效
    具有任选具有2-或8-磺基的3-二苯并呋喃基重氮组分的阴离子偶氮染料

    公开(公告)号:US4185013A

    公开(公告)日:1980-01-22

    申请号:US739493

    申请日:1976-11-08

    摘要: Disclosed are azo dyes containing, a diazo component radical of the formula ##STR1## wherein each of Z and Z.sub.1 is independently hydrogen or sulfo, with the proviso that at least one of Z and Z.sub.1 is hydrogen, for example monoazo and disazo dyes of the formula ##STR2## and salts thereof, wherein K is a coupling component radical of the aromatic carbocyclic, active methylene group-containing aliphatic or aromatic heterocyclic series, andZ and Z.sub.1 are as defined above, with the proviso that the dyes contain one or two sulfo groups, and the use thereof for the dyeing and printing of anionic dyeable substrates, particularly polyamide substrates.

    摘要翻译: 公开了含有下式的重氮组分基团的偶氮染料,其中Z和Z1各自独立地为氢或磺基,条件是Z和Z1中的至少一个为氢,例如,单偶氮和双偶氮染料 其中K是芳族碳环,含活性亚甲基的脂族或芳族杂环系列的偶联组分基团,Z和Z1如上所定义,条件是染料含有一个或两个 磺基,以及其用于染色和印染阴离子可染色基材,特别是聚酰胺基材的用途。

    Disazo compounds
    8.
    发明授权
    Disazo compounds 失效
    双偶氮化合物

    公开(公告)号:US4732975A

    公开(公告)日:1988-03-22

    申请号:US332818

    申请日:1981-12-21

    CPC分类号: C09B35/035 C09B35/38

    摘要: Compounds of the general formula ##STR1## in which R.sup.1 and R.sup.2 are identical or different and denote hydrogen, chlorine or bromine, methyl, ethyl, methoxy, ethoxy or nitro and K denotes identical or different radicals of enolizable ketomethylene compounds which do not contain groups imparting solubility in water, are obtained by coupling one equivalent of the bisdiazonium compound obtained by bisdiazotizing the diamine of the formula ##STR2## in which R.sup.1 and R.sup.2 have the meaning mentioned above, with 2 equivalents of one or more compounds of the formula KH in which K has the meaning mentioned above. These disazo compounds are pigments which have a high tinctorial strength and good fastness to migration, light, heat and chemicals.

    摘要翻译: 通式“IMAGE”的化合物,其中R 1和R 2相同或不同,表示氢,氯或溴,甲基,乙基,甲氧基,乙氧基或硝基,K表示不含基团的可烯化酮亚甲基化合物的相同或不同基团 在水中赋予溶解度是通过将1当量的双重重氮化式R 1和R 2具有上述含义的式“IMAGE”的二胺与2当量的一种或多种式KH化合物偶联得到的双重重氮化合物 其中K具有上述含义。 这些双偶氮化合物是具有高着色强度和对迁移,光,热和化学品具有良好牢度的颜料。

    Azo dyes and liquid-crystalline materials containing these dyes
    9.
    发明授权
    Azo dyes and liquid-crystalline materials containing these dyes 失效
    偶氮染料和含有这些染料的液晶材料

    公开(公告)号:US4724259A

    公开(公告)日:1988-02-09

    申请号:US673984

    申请日:1984-11-21

    CPC分类号: C09K19/601 C09B35/35

    摘要: Compounds of the general formula I ##STR1## where R.sup.1 and R.sup.2 independently of one another are each C.sub.6 -C.sub.24 -alkyl or are each benzyl which is unsubstituted or substituted by alkyl or by cycloalkyl, and one of the radicals may furthermore be hydrogen, and the rings A, B, C and D can be further substituted by chlorine, methyl or methoxy, with the exception of the compound of the formula ##STR2## are useful as dyes in electrooptical liquid crystal displays or for the production of polarization films.

    摘要翻译: 其中R 1和R 2彼此独立地为C 6 -C 24 - 烷基或各自为未被取代或被烷基或环烷基取代的苄基的化合物,其中一个基团可以进一步 是氢,环A,B,C和D可以进一步被氯,甲基或甲氧基取代,除了下式化合物可以用作电光学液晶显示器中的染料 或用于生产偏振膜。