Claims
- 1. Azo dyestuffs which are free of sulfonic acid groups and carboxylic acid groups and correspond to the formula ##STR208## in which R stands for hydrogen, methyl, ethyl, n-propyl, iso-propyl or n-butyl;
- R.sub.1 is hydrogen, methyl or ethyl;
- R.sub.2 is methyl or ethyl;
- R.sub.3 is hydrogen, chlorine, bromine, nitro, methyl, ethyl, n-propyl, iso-propyl, n-butyl, tert.-butyl, methoxy, ethoxy, n-propoxy, iso-propoxy, n-butoxy, benzyl or phenyl;
- R.sub.4 is hydrogen, chlorine, bromine, nitro, methyl, ethyl, n-propyl, iso-propyl, n-butyl, tert.-butyl, methoxy, ethoxy, n-propoxy, iso-propoxy, n-butoxy, benzyl or phenyl;
- R.sub.5 is hydrogen, chlorine, bromine, nitro, methyl, ethyl, n-propyl, iso-propyl, n-butyl, tert.-butyl, methoxy, ethoxy, n-propoxy, iso-propoxy, n-butoxy benzyl or phenyl;
- R.sub.6 is hydrogen, chlorine, bromine, nitro, methyl, ethyl, n-propyl, iso-propyl, n-butyl, tert.-butyl, methoxy, ethoxy, n-propoxy, iso-propoxy, n-butoxy, benzyl or phenyl;
- R.sub.7 is hydrogen or methyl;
- R.sub.8 is hydrogen, chlorine, bromine, cyano, nitro, carbomethoxy, methoxy, methyl or N,N-dimethylsulphamoyl;
- R.sub.9 is hydrogen, chlorine, bromine, cyano, nitro, carbomethoxy, methoxy, methyl or N,N-dimethylsulphamoyl;
- R.sub.10 is hydrogen, chlorine, bromine, cyano, nitro, carbomethoxy, methoxy, methyl or N,N-dimethylsulphamoyl;
- R.sub.11 is hydrogen, chlorine, bromine, cyano, nitro, carbomethoxy, methoxy, methyl or N,N-dimethylsulphamoyl; and
- X.sup.31 is an anion.
- 2. Azo dyestuffs which are free of sulfonic acid groups and carboxylic acid groups and correspond to the formula ##STR209## in which R stands for hydrogen, methyl, ethyl, n-propyl, iso-propyl or n-butyl;
- R.sub.1 is hydrogen, methyl or ethyl;
- R.sub.2 is methyl or ethyl;
- R'.sub.3 is hydrogen, chlorine, nitro, methyl, ethyl, n-propyl; tert.-butyl, methoxy, ethoxy;
- R.sub.7 is hydrogen or methyl;
- R'.sub.8 is hydrogen, bromine, methyl, chlorine, cyano or nitro;
- R'.sub.9 is hydrogen, bromine, methyl, chlorine, cyano or nitro;
- R'.sub.10 is hydrogen, bromine, methyl, chlorine, cyano or nitro;
- R'.sub.11 is hydrogen, bromine, methyl, chlorine, cyano or nitro; and
- X.sup.- is an anion.
- 3. Azo dyestuffs of claim 2, wherein R'.sub.3 is hydrogen and R.sub.1 is methyl or ethyl.
- 4. The dyestuff of the formula ##STR210##
- 5. The dyestuff of the formula ##STR211##
- 6. The dyestuff of the formula ##STR212##
- 7. The dyestuff of the formula ##STR213##
- 8. The dyestuff of the formula ##STR214##
- 9. The dyestuff of the formula ##STR215##
- 10. The dyestuff of the formula ##STR216##
- 11. The dyestuff of the formula ##STR217##
- 12. The dyestuff of the formula ##STR218##
- 13. The dyestuff of the formula ##STR219##
Priority Claims (2)
| Number |
Date |
Country |
Kind |
| 2024184 |
May 1970 |
DEX |
|
| 2041690 |
Aug 1970 |
DEX |
|
Parent Case Info
This is a continuation-in-part of copending application Ser. No. 741,692 filed Nov. 15, 1976, abandoned; which in turn was a continuation of application Ser. No. 142,386, filed May 11, 1971, now abandoned.
Foreign Referenced Citations (3)
| Number |
Date |
Country |
| 1811179 |
Jul 1969 |
DEX |
| 478196 |
Oct 1969 |
CHX |
| 1154006 |
Jun 1969 |
GBX |
Non-Patent Literature Citations (2)
| Entry |
| Venkataraman, The Chemistry of Synthetic Dyes, Academic Press Inc.: New York, 1952, vol. I, p. 640, vol. II, pp. 1217-1220. |
| Venkataraman, The Chemistry of Synthetic Dyes, Academic Press; New York, 1971, vol. IV, pp. 425-428. |
Continuations (1)
|
Number |
Date |
Country |
| Parent |
142386 |
May 1971 |
|
Continuation in Parts (1)
|
Number |
Date |
Country |
| Parent |
741692 |
Nov 1976 |
|
Patent Grant
4268439
