GB189906583A - Manufacture of Black Disazo-Colouring Matters. - Google Patents

Manufacture of Black Disazo-Colouring Matters.

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Publication number
GB189906583A
GB189906583A GB189906583DA GB189906583A GB 189906583 A GB189906583 A GB 189906583A GB 189906583D A GB189906583D A GB 189906583DA GB 189906583 A GB189906583 A GB 189906583A
Authority
GB
United Kingdom
Prior art keywords
carboxylic acids
amidodiphenylamine
dyes
acid
combining
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Inventor
Denton Abel Charles
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Agfa Gevaert NV
Original Assignee
Aktiengesellschaft fuer Anilinfabrikation GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Aktiengesellschaft fuer Anilinfabrikation GmbH filed Critical Aktiengesellschaft fuer Anilinfabrikation GmbH
Application granted granted Critical
Publication of GB189906583A publication Critical patent/GB189906583A/en
Expired legal-status Critical Current

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Abstract

6583. Abel, C. D., [Actiengesellschaft f³r Anilin Fabrikation]. March 27. Dyes, artificial.-Relates to black disazo dyes of the kind described in Specification No. 24,527, A.D. 1897, and consists in substituting for the p-amidodiphenylamine sulphonic acids referred to therein, amidodiphenylamine carboxylic acids which contain the carboxylic group attached to the same nucleus as the diazotizable amido group. These carboxylic acids are obtained by condensing chloronitrobenzoic acid [COOH : Cl : NO2 = 1 : 2 : 5] with aromatic amines or their sulphonic or carboxylic acids, for example, with aniline, anisidine, or metanilic acid, and then reducing the nitrodiphenylamine carboxylic acids thus produced. The dyes are produced by combining the diazo compounds of these amidodiphenylamine carboxylic acids with alpha-naphthylamine, again diazotizing the amidoazo product, and combining the diazo azo compound thus formed with a component such as #-naphthol disulphonic acid-R.
GB189906583D 1899-03-27 1899-03-27 Manufacture of Black Disazo-Colouring Matters. Expired GB189906583A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB189906583T 1899-03-27

Publications (1)

Publication Number Publication Date
GB189906583A true GB189906583A (en) 1900-01-13

Family

ID=32145040

Family Applications (1)

Application Number Title Priority Date Filing Date
GB189906583D Expired GB189906583A (en) 1899-03-27 1899-03-27 Manufacture of Black Disazo-Colouring Matters.

Country Status (1)

Country Link
GB (1) GB189906583A (en)

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