C09B35/28 - CPC Classification Index

ClassID:

102200 ⎘

C09B35/28 - CPC Classification

Classification description:

Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling; Disazo dyes characterised by the tetrazo component the tetrazo component containing two aryl nuclei linked by at least one of the groups —CON<, —SON<, —SO—, or —SO—O—

Sub-classes:

C09B35/30 » from two identical coupling components 2
C09B35/32 » from two different coupling components 2

Recent Application in this class:

20150050466

2015-02-19

Water soluble and water fast dyes for ink jet printing

20100199443

2010-08-12

Yellow anionic disazo dyes

20080114158

2008-05-15

Yellow anionic disazo dyes

20050172420

2005-08-11

Yellow anionic disazo dyes