Nickel complex pigments of bis-azomethines

Details Nickel complex pigments of bis-azomethines Nickel complex pigments of bis-azomethines

1983-10-14

1985-04-02

Berch, Mark L.

Organic compounds -- part of the class 532-570 series

Organic compounds

Four or more ring nitrogens in the bicyclo ring system

544252, C07D51900, C09B17000

Patent

active

045088993

ABSTRACT:
Pigments that can be used to color plastics, paints, and printing inks have the structural formula ##STR1## wherein each R.sup.1, each R.sup.3, and R.sup.7 represent hydrogen, halogen, nitro, or lower alkyl and each R.sup.2, each R.sup.4, each R.sup.5, and R.sup.6 represent hydrogen or halogen.

REFERENCES:
patent: 4474952 (1984-10-01), Iqbal

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