Arylide azopigments formed by coupling a diazoryl compound with

Details Arylide azopigments formed by coupling a diazoryl compound with Arylide azopigments formed by coupling a diazoryl compound with

1982-09-28

1985-02-05

Higel, Floyd D.

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

Organic compounds

Azo

106 23, 106288Q, 106300, 106308Q, 106309, 560170, 562567, 564194, 534614, C09B 2901, C09B 2933, C09B 3510, D06P 144

Patent

active

044977352

ABSTRACT:
Azopigments resulting from coupling a diazoaryl compound with an acetoacetic acid derivative having a quaternary ammonium group linked to the terminal methyl group show increased color strength and improved stability on storing as compared with the corresponding azopigments not having the said quaternary ammonium group in the molecule. For example, 2-nitro-4-chloro phenyldiazonium chloride or dichlorobenzidinetertrazonium chloride is coupled with an omega-ammoniumacetic acid derivative. The arylide azopigments of the present invention can be used in printing inks.

REFERENCES:
patent: 2261626 (1941-11-01), Lang
patent: 3524842 (1970-08-01), Grossmann et al.

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