Monoazo pigments derived from substituted aminothiophenes

Details Monoazo pigments derived from substituted aminothiophenes Monoazo pigments derived from substituted aminothiophenes

1979-05-31

1981-04-21

Higel, Floyd D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

106 23, 106288Q, 106297, 106299, 106308Q, 106309, 260154, 260155, 260157, 428432, C09B 2920, C09B 2922, C09D 348, C09D 1102

Patent

active

042632056

ABSTRACT:
Monoazo pigments of the formula I ##STR1## in which R is the radical of a carbocyclic or heterocyclic aromatic amine and R.sub.1, R.sub.2 and R.sub.3 are hydrogen, halogen, alkyl, alkoxy, alkoxycarbonyl, substituted or unsubstituted aminocarbonyl, nitro, cyano or trifluoromethyl. These pigments are suitable for coloring high molecular weight organic material and are distinguished by their easy accessibility and good general fastness properties and in particular by high clarity of color shade.

REFERENCES:
patent: 1758385 (1930-05-01), Zerweck
patent: 2144219 (1939-01-01), Etzelmiller
patent: 2149236 (1939-02-01), Zahn et al.
patent: 2443598 (1948-06-01), Cheney et al.
patent: 2468457 (1949-04-01), Orem et al.
patent: 2625542 (1953-01-01), Long
patent: 2625552 (1953-01-01), Long
patent: 2703319 (1955-03-01), Fischer
patent: 3600374 (1971-08-01), Mory

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