Carboxamide type azomethine pigment

Details Carboxamide type azomethine pigment Carboxamide type azomethine pigment

1980-05-09

1982-03-09

Higel, Floyd D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260157, 260205, 260206, 260208, 546159, 548325, C09B 43155, C09B 5500, C09B 5704, D06P 113

Patent

active

043188508

ABSTRACT:
A compound of the formula, ##STR1## wherein R is an aromatic compound selected from the group consisting of: ##STR2## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6 and R.sub.7 which may be the same or different, are each selected from the group consisting of hydrogen, chlorine, a C.sub.1-2 alkyl group and a C.sub.1-2 alkoxy group and wherein Y is --SO.sub.2 --, --O--, --S--, --CO--, --N.dbd.N-- or --NHCO--; X is a halogen atom selected from the group consisting of chlorine, bromine, and fluorine; and n is zero or an integer of from 1 to 4. The compound is useful for pigments having hue from the yellow shade to the red shade and having especially high chroma. The pigments also have improved weather resistance, chemical resistance and tinting strength.

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patent: 3971805 (1976-07-01), Model
patent: 4006162 (1977-02-01), Model
patent: 4008097 (1977-02-01), Bitterli et al.
patent: 4223152 (1980-09-01), Fujii et al.

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