Colorants obtained by reacting a NH.sub.2 -containing dyestuff w

Details Colorants obtained by reacting a NH.sub.2 -containing dyestuff w Colorants obtained by reacting a NH.sub.2 -containing dyestuff w

1989-04-13

1990-12-18

Higel, Floyd D.

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

Organic compounds

Azo

534573, 534588, 534591, 534743, 534754, 534755, 534805, 534806, 534807, 534829, 106 23, 106400, 106436, 106448, 106493, 106496, 540123, 540124, 540125, 540126, 540127, 540130, 540133, C09B 4300, C09B 4355, C09B 6910, C07D 1102

Patent

active

049787470

ABSTRACT:
Colorants are obtained by reacting a dyestuff which is free from ionic groups and has.gtoreq.2 NH.sub.2 groups which are preferably arranged in such a manner that they do not participate in the resonance of the chromophore with such an amount of a (cyclo)aliphatic diisocyante so as to form an adduct that still contains at least two free NCO groups, and subsequently reacting this adduct with a (cyclo)aliphatic diamine, to form an adduct suitable for dyeing and pigmenting macromolecular substances, in particular for coloring PUR-based paints, coatings and laminates.

REFERENCES:
patent: 2022935 (1935-12-01), Hilger et al.
patent: 3660458 (1972-05-01), Trotz et al.

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