C09B33/04 - CPC Classification Index

ClassID:

102149 ⎘

C09B33/04 - CPC Classification

Classification description:

Disazo and polyazo dyes of the types A->K<-B, A->B->K<-C, or the like, prepared by diazotising and coupling; Disazo dyes in which the coupling component is a dihydroxy or polyhydroxy compound

Sub-classes:

C09B33/044 » the coupling component being a bis-phenol 3
C09B33/048 » the coupling component being a bis-naphthol 5
C09B33/052 » the coupling component being a bis-(naphthol-amine) 0
C09B33/056 » the coupling component being a bis-(naphthol-urea) 2

Recent Application in this class:

20190300735

2019-10-03

Water-based ink for ink-jet recording

20090122239

2009-05-14

Color Filter Ink Composition, Method for Making Color Filter, and Color Filter Produced by the Same

20080184497

2008-08-07

Dyes that are soluble in organic solvents