IPC Subgroup
C09B 45/24 Disazo or polyazo compounds
Introduced: September 1968
Last revised: January 2006
Full Title
Complex metal compounds of azo dyes > Preparation from dyes containing in o-position a hydroxy group and in o-position hydroxy, alkoxy, carboxyl, amino, or keto groups > Disazo or polyazo compounds
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- Subclass:
- ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES; MORDANTS; LAKES
4 direct subcodes
Child Classifications
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- C09B 45/26 containing chromium
- C09B 45/28 containing copper
- C09B 45/3 containing cobalt
- C09B 45/32 containing other metals