Azo pigments, process for producing the azo pigments, and...

C - Chemistry – Metallurgy – 09 – B

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C09B 33/12 (2006.01) C09D 11/00 (2006.01)

Patent

CA 2691624

An azo pigment represented by the following general formula (1), a tautomer of the azo pigment, and a salt or a hydrate thereof: General formula (1) whrerein each of R1, R2, P1, P2, Q1, and Q2 independently represents a hydrogen atom or a substituent, G represents the non-metallic atoms necessary to complete a 5- to 6-membered heterocyclic group, W represents a substituent capable of binding to the heterocyclic group constituted by G, t represents an integer of from 0 to 4, each of Het-1 and Het-2 independently represents a group selected from specific aromatic heterocyclic groups.

Pigment azoïque représenté par la formule suivante (1), tautomère du pigment azoïque et son sel ou son hydrate. Formule générale (1) dans laquelle chacun de R1, R2, P1, P2, Q1 et Q2 représente indépendamment un atome d'hydrogène ou un substituant, G représente les atomes non métalliques nécessaires pour compléter un groupe hétérocyclique à 5 ou 6 éléments, W représente un substituant capable de se lier au groupe hétérocyclique constitué par G, t représente un entier de 0 à 4, chacun de Het-1 et Het-2 représente indépendamment un groupe sélectionné dans des groupes hétérocycliques aromatiques spécifiques.

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