ClassID:

102162

C09B33/22 - 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; Trisazo or higher polyazo dyes Trisazo dyes of the type A->B->K<-C

Recent Application in this class:
#1
20170335110
2017-11-23

Black trisazo dyes, their preparation and their use

#2
20160280999
2016-09-29

Polarizing film, display device and production process thereof

#3
20150050466
2015-02-19

Water soluble and water fast dyes for ink jet printing

#4
20140013997
2014-01-16

Ink composition, ink for inkjet recording and inkjet recording method

#5
20130070899
2013-03-21

Polarizing film, display device and production process thereof

#6
20120159719
2012-06-28

Black trisazo dyes, their preparation and their use

#7
20110014435
2011-01-20

Process for Printing an Image, Composition and Compound

#8
20100215917
2010-08-26

Black azo dyes and their use in ink jet printing

#9
20100159210
2010-06-24

Trisazo Dyestuffs With 6-Pyrazolyl-1-Naphtholsulphonic Acid as Middle Component

#10
20080196180
2008-08-21

6-azo-5,5′-dihydroxy-7,7′-disulfo-2-2′ dinaphthylamine derivatives

#11
20080026191
2008-01-31

Compounds, compositions and processes

#12
20070287830
2007-12-13

Trisazo Dye, Composition Containing the Same for Anisotropic Dye Film, Anisotropic Dye Film, and Polarizing Element

#13
20070107628
2007-05-17

Trisazo compound, ink composition, and colored object

#14
20070079740
2007-04-12

Azo compound and salt thereof

#15
20060286477
2006-12-21

Methanesulfonamide azo dyes

#16
20060272544
2006-12-07

Ink for ink jet recording comprising print density improver, print density improver and method for improving print density

#17
20060070549
2006-04-06

Self-dispersible colorant and ink composition containing the same