GB189906583A - Manufacture of Black Disazo-Colouring Matters. - Google Patents
Manufacture of Black Disazo-Colouring Matters.Info
- 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
Links
Landscapes
- Photoreceptors In Electrophotography (AREA)
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.
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) |
-
1899
- 1899-03-27 GB GB189906583D patent/GB189906583A/en not_active Expired
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