FR28861E - Process for the production of black azo dyestuffs - Google Patents
Process for the production of black azo dyestuffsInfo
- Publication number
- FR28861E FR28861E FR28861DA FR28861E FR 28861 E FR28861 E FR 28861E FR 28861D A FR28861D A FR 28861DA FR 28861 E FR28861 E FR 28861E
- Authority
- FR
- France
- Prior art keywords
- production
- azo dyestuffs
- black azo
- black
- dyestuffs
- 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
- C09B31/00—Disazo and polyazo dyes of the type A->B->C, A->B->C->D, or the like, prepared by diazotising and coupling
- C09B31/02—Disazo dyes
- C09B31/06—Disazo dyes from a coupling component "C" containing a directive hydroxyl group
- C09B31/075—Disazo dyes from a coupling component "C" containing a directive hydroxyl group ortho-Hydroxy carboxylic acid amides
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR28861T | 1924-04-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR28861E true FR28861E (en) | 1925-04-08 |
Family
ID=8666966
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR28861D Expired FR28861E (en) | 1924-04-04 | 1924-04-04 | Process for the production of black azo dyestuffs |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR28861E (en) |
-
1924
- 1924-04-04 FR FR28861D patent/FR28861E/en not_active Expired
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