Azo pigments, process for producing the azo pigments, and pigment dispersion, coloring composition and ink for inkjet recording containing the pigment
AssigneeFUJIFILM Corporation
InventorsKeiichi Tateishi, Yoshiaki Nagata, Tomoaki Nakamura
Life of this patent
Estimating the term…
Abstract
An azo pigment represented by the following general formula (1), a tautomer of the azo pigment, and a salt or a hydrate thereof: wherein 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.
Claims15
An azo pigment represented by the following general formula (1), a tautomer of the azo pigment, and a salt or a hydrate thereof:
- wherein
- 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 the aromatic heterocyclic groups represented by the following general formula (2):
- wherein
- each of X, Y, Z, W0, W1, W2, W3, and W4 independently represents a hydrogen atom or a substituent, and
- * shows the point of attachment to the azo linkage in the general formula (1).
Dependencies are inferred from the claim text.