AZO pigment, pigment dispersion containing the AZO pigment, and coloring composition
AssigneeFUJIFILM Corporation
InventorsKeiichi Tateishi, Yoshiaki Nagata, Nobuo Seto
Life of this patent
Estimating the term…
Abstract
An azo pigment of formula (1), a tautomer of the azo pigment, or a salt or hydrate thereof, are provided: G0 and G1 each is a non-metal atomic group which can form a 5- or 6-membered heterocyclic ring, The rings may be monocyclic or condensed and are optionally substituted. X is a hetero atom. n is an integer of 1 to 4. When n=2, 3, or 4, the compound is a dimer, trimer, or tetramer, respectively. A is a substituent. The azo pigment has excellent coloring characteristics such as high tinctorial strength and hue. It also has excellent durability including high resistance to light and ozone. A pigment dispersion containing the azo pigment and a coloring composition are also provided.
Claims17
An azo pigment represented by the following general formula (1), a tautomer of the azo pigment, and a salt or a hydrate thereof:
- wherein G0 and G1 each independently represents a non-metal atomic group which can form a 5- or 6-membered heterocyclic ring wherein each heterocyclic ring may be unsubstituted or may have a substituent;
- each heterocyclic ring may be a monocyclic ring or a condensed ring;
- X represents a hetero atom;
- n represents an integer of 1 to 4;
- when n=2, the compound of formula (1) represents a dimer formed via A or a heterocyclic group represented by G0 or G1;
- when n=3, the compound of formula (1) represents a trimer formed via A and/or a heterocyclic group represented by G0 or G1;
- when n=4, the compound of formula (1) represents a tetramer formed via A and/or a heterocyclic group represented by G0 or G1;
- A represents any one selected from the group of substituents represented by (A-2) and (A-4) to (A-44) in the following general formula (2);
- and * represents the binding site to the N atom in the general formula (1);
- wherein in the group of substituents (A-2) and (A-4) to (A-44) represented by the general formula (2), R11 to R112 each independently represents a hydrogen atom or a substituent;
- Q1 in (A-12), Q2 in (A-41), Q3 in (A-42) and Q4 in (A-43) each represents a non-metal atomic group necessary for forming a 5-to 8-membered heterocyclic group with a hetero atom;
- Q5 in (A-44) represents a non-metal atomic group necessary for forming a 5-to 8-membered hydrocarbon ring;
- R represents a substituent;
- r represents an integer of 0 to 4;
- and when substituent R is plural, each R may be the same as or different from every other R.
An azo pigment represented by the following general formula (6-1), a tautomer of the azo pigment, and a salt or a hydrate thereof:
- wherein Het represents a group selected from the aromatic heterocyclic group represented by the following general formulae (I-1) to (I-9);
- R6-1 and R6-2 each independently represents a hydrogen atom or a substituent;
- R6-3 represents a heterocyclic group;
- n represents an integer of 1 to 4;
- when n=2, the compound of formula (6-1) represents a dimer formed via R6-1, R6-2, R6-3 or Het;
- when n =3, the compound of formula (6-1) represents a trimer formed via R6-1, R6-2, R6-3 or Het;
- and when n=4, the compound of formula (6-1) represents a tetramer formed via R6-1, R6-2, R6-3 or Het;
- wherein in the general formulae (I-1) to (I-9), Z, Y, G and W each independently represents a hydrogen atom or a substituent;
- X1, X2 and X3 each independently is interchangeably used with X6-1, X6-2 and X6-3 and represents a nitrogen atom or a —C(R6-11)═ group;
- R6-11 represents a hydrogen atom or a substituent;
- and * represents the binding site to the azo group in the general formula (6-1).
An azo compound represented by the following general formula (6-4), a tautomer of the azo compound, and a salt or a hydrate thereof:
- wherein G1 represents a non-metal atomic group necessary for forming a 5- or 6-membered ring with a carbon atom and a nitrogen atom, and the heterocyclic group may be an aromatic ring or a condensed ring;
- Z and Y each independently represents a hydrogen atom or a substituent;
- R6-3 represents a heterocyclic group;
- and R6-1′ and R6-2′ each independently represents a hydrogen atom, an alkyl group, an aryl group or a heterocyclic group.
Dependencies are inferred from the claim text.