GB1028918A - Improvements relating to cobalt-containing formazane dyestuffs and their use - Google Patents
Improvements relating to cobalt-containing formazane dyestuffs and their useInfo
- Publication number
- GB1028918A GB1028918A GB3875263A GB3875263A GB1028918A GB 1028918 A GB1028918 A GB 1028918A GB 3875263 A GB3875263 A GB 3875263A GB 3875263 A GB3875263 A GB 3875263A GB 1028918 A GB1028918 A GB 1028918A
- Authority
- GB
- United Kingdom
- Prior art keywords
- amine
- formazane
- cobalt
- groups
- optionally substituted
- 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
- C09B50/00—Formazane dyes; Tetrazolium dyes
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Abstract
The invention comprises cobalt-containing formazane compounds which contain no salt-forming groups which dissociate acid in water and no sulphamide groups, except arylsulphamide groups and which correspond to the general formula <FORM:1028918/C4-C5/1> wherein A1 and A2 are each an aromatic radical, B1 and B2 are each an aromatic radical containing no metallizable groups in the o-positions to the nitrogen bond, Q1 and Q2 are each a bridging member, Z1 and Z2 are each an optionally substituted aliphatic hydrocarbon group having at most four carbon atoms, W1 and W2 are each an optionally substituted, saturated or unsaturated aliphatic hydrocarbon radical, an optionally saturated cycloaliphatic hydrocarbon radical or an optionally substituted aromatic hydrocarbon radical or a heterocyclic radical containing no ring nitrogen atoms or the nitro or the cyano group, X11 and X12 represent -O- in o-position to the nitrogen linkage to A1 or A2, Y+ represents an equivalent of a cation and n1, n2, m1 and m2 each represen the whole numbers 1 or 2. The dyes are prepared by reacting one mole of an appropriate formazane compound or a mixture of such compounds with an agent providing less than 1 mol of cobalt to form a compound which contains the residues of two molecules of formazane dyestuff to one cobalt atom. The formazane compounds employed as starting materials are prepared by methods known per se, e.g. an aldehyde is coupled with the hydrazine from an amine A-NH2 and the hydrazone is coupled with a diazonium compound from an amine B-NH2 or a hydrazine from an amine B-NH2 is condensed with an aldehyde and the hydrazone is coupled with a diazonium compound from an amine A-NH2. Many examples are furnished and alternative starting materials listed. The dyes are suitable for colouring synthetic polyamides, silk, leather and wool.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1161662A CH420435A (en) | 1962-10-03 | 1962-10-03 | Process for the production of formazan dyes containing cobalt |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1028918A true GB1028918A (en) | 1966-05-11 |
Family
ID=4375173
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3875263A Expired GB1028918A (en) | 1962-10-03 | 1963-10-02 | Improvements relating to cobalt-containing formazane dyestuffs and their use |
Country Status (3)
Country | Link |
---|---|
CH (1) | CH420435A (en) |
DE (1) | DE1444688A1 (en) |
GB (1) | GB1028918A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6428582B1 (en) | 1993-05-18 | 2002-08-06 | Ciba Specialty Chemicals Corporation | Dye mixtures, 1:2 cobalt complex formazan dyes and their use |
US6551364B2 (en) | 1993-05-18 | 2003-04-22 | Ciba Specialty Chemicals Corporation | Dye mixtures, 1:2 cobalt complex formazan dyes and their use |
-
1962
- 1962-10-03 CH CH1161662A patent/CH420435A/en unknown
-
1963
- 1963-10-02 DE DE19631444688 patent/DE1444688A1/en active Pending
- 1963-10-02 GB GB3875263A patent/GB1028918A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6428582B1 (en) | 1993-05-18 | 2002-08-06 | Ciba Specialty Chemicals Corporation | Dye mixtures, 1:2 cobalt complex formazan dyes and their use |
US6551364B2 (en) | 1993-05-18 | 2003-04-22 | Ciba Specialty Chemicals Corporation | Dye mixtures, 1:2 cobalt complex formazan dyes and their use |
Also Published As
Publication number | Publication date |
---|---|
DE1444688A1 (en) | 1968-10-17 |
CH420435A (en) | 1966-09-15 |
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