GB1053928A - - Google Patents
Info
- Publication number
- GB1053928A GB1053928A GB1053928DA GB1053928A GB 1053928 A GB1053928 A GB 1053928A GB 1053928D A GB1053928D A GB 1053928DA GB 1053928 A GB1053928 A GB 1053928A
- Authority
- GB
- United Kingdom
- Prior art keywords
- dye
- dyes
- aldehyde
- substituted
- formula
- 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.)
- Active
Links
Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B43/00—Preparation of azo dyes from other azo compounds
- C09B43/006—Preparation of azo dyes from other azo compounds by introduction of hydrocarbon radicals on C-atom of azo dye
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B43/00—Preparation of azo dyes from other azo compounds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B45/00—Complex metal compounds of azo dyes
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Abstract
1,053,928. Azo dyes. BADISCHE ANILIN- & SODA FABRIK A.G. Oct. 31, 1963 [Nov. 13, 1962], No. 42988/63. Heading C4P. The invention comprises azo dyes or metal complexes thereof which contain, combined by way of a substituted or unsubstituted -CH 2 - group attached in o-position to an -OH group of the benzene ring A in the dye of the formula given below, radicals of a water-soluble azo compound of formula wherein R is an aromatic carbo- or heterocyclic radical of a diazo component which may be substituted by arylazo groups or by a copper phthalocyanine dye radical, one X is a hydroxyl group and the other a hydrogen atom. The dyes are prepared by condensing a dye of the above formula in acid medium with an aldehyde or an agent yielding an aldehyde, with metallization (e.g. with copper, nickel, iron, chromium or cobalt compounds) before, during or after condensation if desired. If half the stoichiometric amount of aldehyde is used a disazo dye is obtained wherein 2 molecules of the dye of formula are linked via a single substituted or unsubstituted -CH 2 - group in either position (a) or (b). Larger amounts of aldehyde will give polyazo dyes wherein both (a) and (b) positions are substituted. Specified aldehydes are formaldehyde, paraformaldehyde, propionaldehyde, benzaldehyde - 2 - sulphonic acid, mucochloric acid, polymeric glyoxal, benzaldehyde-2,4- disulphonic acid and the azo dye 3-aminobenzaldehyde - <- 1 -(3<SP>1</SP>-sulpho-phenyl) -3-methyl-5- pyrazolone. The dyes colour leather in red, violet, green, brown and black shades.
Publications (1)
Publication Number | Publication Date |
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GB1053928A true GB1053928A (en) |
Family
ID=1757852
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1053928D Active GB1053928A (en) |
Country Status (1)
Country | Link |
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GB (1) | GB1053928A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4212802A (en) * | 1977-08-05 | 1980-07-15 | Sandoz Ltd. | 1:2 Chromium complexes of disazo compounds |
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0
- GB GB1053928D patent/GB1053928A/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4212802A (en) * | 1977-08-05 | 1980-07-15 | Sandoz Ltd. | 1:2 Chromium complexes of disazo compounds |
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