Azo-pigment containing hydroxy naphthoic acid amide and an imino

Details Azo-pigment containing hydroxy naphthoic acid amide and an imino Azo-pigment containing hydroxy naphthoic acid amide and an imino

1984-12-27

1987-01-20

Higel, Floyd D.

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

Organic compounds

Azo

534588, 534591, 534598, 534738, 534774, 534775, 534776, C09B 29036, C09B 2920, C09B 2922, C09B 6720

Patent

active

046380523

ABSTRACT:
An azo-pigment represented by the general formula: ##STR1## where R.sub.1 is a hydrogen atom, a C.sub.1 -C.sub.4 alkyl group, an unsubstituted phenyl group or a substituted phenyl group, R.sub.2 is a residue of a phenylenediamine, and R.sub.3 is a hydrogen atom, a methyl group, a methoxy group or a halogen atom. The azo-pigment of the present invention is useful in applications where azo-pigments are used.

REFERENCES:
patent: 3781266 (1973-12-01), Dietz et al.
patent: 3867404 (1975-02-01), Vor Der Crone et al.
patent: 3928315 (1975-12-01), Ribka
patent: 3985725 (1976-10-01), Ribka et al.
patent: 4220586 (1980-09-01), Cseh et al.
patent: 4221709 (1980-09-01), Kawamura et al.
patent: 4229344 (1980-10-01), Muller et al.
patent: 4371467 (1983-02-01), Ando et al.
Biedermann, J. Soc. Dyers Colourists, vol. 87, pp. 105 to 111 (1971).

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