C09B31/068 - CPC Classification Index

ClassID:

102123 ⎘

C09B31/068 - 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 from a coupling component "C" containing a directive hydroxyl group Naphthols

Sub-classes:

C09B31/072 » containing acid groups, e.g. -COH, -SOH, -POH, -OSOH, -OPOH; Salts thereof 22

Recent Application in this class:

20230326968

2023-10-12

COMPOSITIONS AND METHODS FOR MARKING HYDROCARBON COMPOSITIONS WITH NON-MUTAGENIC DYES

20210002570

2021-01-07

Compositions and methods for marking hydrocarbon compositions with non-mutagenic dyes

20180016506

2018-01-18

Compositions and methods for marking hydrocarbon compositions with non-mutagenic dyes

20170259541

2017-09-14

Shrink films, and method of making thereof

20120216714

2012-08-30

Liquid-crystalline coating fluid and polarizing film

20100234494

2010-09-16

Reversibly thermochromic compositions

20070266895

2007-11-22

Aliphatic Hydrocarbon Soluble Red Dyes

20060096044

2006-05-11

Colorant for ocular lenses and material for colored ocular lenses using the colorant