GB888499A - Benzene monoazo pyrazole dyestuffs - Google Patents
Benzene monoazo pyrazole dyestuffsInfo
- Publication number
- GB888499A GB888499A GB19824/60A GB1982460A GB888499A GB 888499 A GB888499 A GB 888499A GB 19824/60 A GB19824/60 A GB 19824/60A GB 1982460 A GB1982460 A GB 1982460A GB 888499 A GB888499 A GB 888499A
- Authority
- GB
- United Kingdom
- Prior art keywords
- dyes
- sulpho
- monoazo
- dyestuffs
- pyrazole
- 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
Abstract
The invention comprises dyes of formula <FORM:0888499/IV (c)/1> wherein R is the residue of a sulphoaryl compound which may be nuclear substituted. The dyes are made by diazotising a 2-aniline-1-sulphonic acid phenyl ester and coupling with a 1-(sulphoaryl)-3-methyl-5-aminopyrazole in acid to neutral solution. Indicative of specified coupling components are 1-(21-, 31- and 41-sulpho- and 21,51dichloro-41-sulpho)- and 1-(81 sulpho - 21 - naphthyl) - 3 - methyl - 5 - amino - pyrazoles. The dyes colour wool, from an acid or neutral bath, in yellow shades. Examples are provided of the preparation of the dyes and their use in colouring processes. Reference has been directed by the Comptroller to Specification 844,427.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE888499X | 1959-06-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB888499A true GB888499A (en) | 1962-01-31 |
Family
ID=6834108
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB19824/60A Expired GB888499A (en) | 1959-06-26 | 1960-06-03 | Benzene monoazo pyrazole dyestuffs |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB888499A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4159265A (en) | 1973-07-14 | 1979-06-26 | Bayer Aktiengesellschaft | Phenylazopyrazolo dyestuffs including disulfimide substituent |
-
1960
- 1960-06-03 GB GB19824/60A patent/GB888499A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4159265A (en) | 1973-07-14 | 1979-06-26 | Bayer Aktiengesellschaft | Phenylazopyrazolo dyestuffs including disulfimide substituent |
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