Patent classifications
C
CHEMISTRY; METALLURGY
Load children
C09
DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
Load children
C09B
ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES; , e.g. PIGMENTS; MORDANTS; LAKES
Load children
31/00
Disazo and polyazo dyes of the type A->B->C, A->B->C->D, or the like, prepared by diazotising and coupling
Load children Filter patents View analytics View as hierarchy
C09B31/20
from a coupling component"D" containing a directive hydroxyl group
Filter patents View analytics View as hierarchy