GB767450A - Chromium-containing monoazo dyestuffs - Google Patents
Chromium-containing monoazo dyestuffsInfo
- Publication number
- GB767450A GB767450A GB735/55A GB73555A GB767450A GB 767450 A GB767450 A GB 767450A GB 735/55 A GB735/55 A GB 735/55A GB 73555 A GB73555 A GB 73555A GB 767450 A GB767450 A GB 767450A
- Authority
- GB
- United Kingdom
- Prior art keywords
- propyl
- ethyl
- methyl
- carbon atoms
- chromium
- 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
Classifications
-
- 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
- C09B45/02—Preparation from dyes containing in o-position a hydroxy group and in o'-position hydroxy, alkoxy, carboxyl, amino or keto groups
- C09B45/14—Monoazo compounds
- C09B45/16—Monoazo compounds containing chromium
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Abstract
The invention comprises chromium complexes of dyestuffs of formula <FORM:0767450/IV(b)/1> where R1 is an alkyl radicle of 2-4 carbon atoms and R2 is an alkyl radicle of 1-4 carbon atoms, preferably a methyl, ethyl or propyl group. They are made by diazotizing an appropriate 1-amino-2-hydroxy-benzene-5-alkylsulphone, coupling with the necessary 1-alkylsulphonylamino-7-naphthol and chroming the product preferably to give a complex containing one atom of metal per two mols of dyestuff. The dye-stuffs dye wool, silk, leather, polyamides and polyurethanes from neutral to weakly acid baths in bluish grey shades. Examples are provided in which R1 is ethyl and n-propyl and R2 is methyl and n-propyl. Specifications 730,036, 755,853 and 758,016 are referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE767450X | 1954-01-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB767450A true GB767450A (en) | 1957-02-06 |
Family
ID=6673533
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB735/55A Expired GB767450A (en) | 1954-01-16 | 1955-01-10 | Chromium-containing monoazo dyestuffs |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB767450A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2909515A (en) * | 1957-02-01 | 1959-10-20 | Sandoz Ag | Monoazo dyestuffs and their metal complex compounds |
-
1955
- 1955-01-10 GB GB735/55A patent/GB767450A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2909515A (en) * | 1957-02-01 | 1959-10-20 | Sandoz Ag | Monoazo dyestuffs and their metal complex compounds |
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