C09B35/021 - CPC Classification Index

ClassID:

102170 ⎘

C09B35/021 - CPC Classification

Classification description:

Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling; Disazo dyes characterised by two coupling components of the same type

Sub-classes:

C09B35/023 » in which the coupling component is a hydroxy or polyhydroxy compound 10
C09B35/025 » in which the coupling component is an amine or polyamine 9
C09B35/027 » in which the coupling component is a hydroxy-amino compound 1
C09B35/03 » in which the coupling component is a heterocyclic compound 22
C09B35/033 » in which the coupling component is an arylamide of an o-hydroxy-carboxylic acid or of a beta-keto-carboxylic acid 5
C09B35/035 » in which the coupling component containing an activated methylene group 7

Recent Application in this class:

20180022872

2018-01-25

Bis(azobenzene) diamines and photomechanical polymers made therefrom

20160274274

2016-09-22

Composition for forming dye type polarizer and dye type polarizer

20130255006

2013-10-03

Azo dyes

20090068414

2009-03-12

Disazodyes for ink-jet printing

20090053479

2009-02-26

Disazo Dyes for Ink-Jet Printing

20060147652

2006-07-06

Dichroic dye and microencapsulated liquid crystal composition thereof

20060063186

2006-03-23

Multi-chromophoric quencher constructs for use in high sensitivity energy transfer probes