Modifier composition for azo pigments based on 2-hydroxy-3-napht

Details Modifier composition for azo pigments based on 2-hydroxy-3-napht Modifier composition for azo pigments based on 2-hydroxy-3-napht

1979-01-05

1980-09-23

Shaver, Paul F.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C09B 2910

Patent

active

042242215

ABSTRACT:
The use of alpha-substituted-2-hydroxy-3-naphthoic acids to replace part of the conventional 2-hydroxy-3-naphthoic acid coupling component results in improved azo dyes.

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patent: 1283231 (1918-10-01), Levinstein
patent: 3498966 (1970-03-01), Mueller
patent: 3520870 (1970-07-01), Dombroski et al.
patent: 4143036 (1979-03-01), Stefancsik

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