C09B31/025 - CPC Classification Index

ClassID:

102112 ⎘

C09B31/025 - CPC Classification

Classification description:

Disazo and polyazo dyes of the type A->B->C, A->B->C->D, or the like, prepared by diazotising and coupling; Disazo dyes containing acid groups, e.g. -COOH, -SOH, -POH, -OSOH, -OPOH; Salts thereof

Recent Application in this class:

20250043185

2025-02-06

Chiral Azobenzene Dopants with Increased Delta Helical Twisting Power

20200216702

2020-07-09

INK SET, INK CARTRIDGE, INK JET PRINTER, AND INK JET RECORDING METHOD

20200216701

2020-07-09

INK SET, INK CARTRIDGE, INK JET PRINTER, AND INK JET RECORDING METHOD

20190300929

2019-10-03

Reaction accelerating agent

20180298218

2018-10-18

Low toxicity ink formulations with improved printhead lifetime

20180171148

2018-06-21

Bis-Azo colorants for use as bluing agents

20150141629

2015-05-21

Water-resistant organic thin-film, method for producing water-resistant organic thin-film, and image display device including water-resistant organic thin-film

20150126717

2015-05-07

Bis-azo colorants for use as bluing agents

20130255010

2013-10-03

Metal free acid dyes, methods for the production thereof and their use

#10

20130139723

2013-06-06

Azo compound, aqueous solution, ink composition, ink for inkjet recording, inkjet recording method, ink cartridge for inkjet recording, and inkjet record

#11

20120216714

2012-08-30

Liquid-crystalline coating fluid and polarizing film

#12

20120101265

2012-04-26

Bis-azo colorants for use as bluing agents

#13

20120090503

2012-04-19

Black disazo dyes, their preparation and use

#14

20090036638

2009-02-05

Contrast Dyes for Inkjet Lithographic Printing Plates