Pyridone azo compound, tautomer thereof, and colorant-containing curable composition, color filter and manufacturing method thereof

1. A pyridone azo compound represented by the following Formula (II) and a tautomer thereof:

wherein R 1 and R 3 each independently represents a hydrogen atom, an alkyl group having 1 to 21 carbon atoms, an alkenyl group having 2 to 21 carbon atoms, an aryl group having 6 to 21 carbon atoms, an aralkyl group having 7 to 21 carbon atoms, R 2 represents an alkyl group having 1 to 10 carbon atoms, a methoxymethyl group, or a trifluoromethyl group, and M represents a hydrogen atom, a cation consisting of a metallic atom, or a cation consisting of a nitrogen-containing compound.

2. A colorant-containing curable composition comprising a colorant, wherein the colorant contains at least one of a pyridone azo compound represented by the following Formula (I) and a tautomer thereof:

wherein R 1 , R 3 and R 4 each independently represents a hydrogen atom, an alkyl group having 1 to 21 carbon atoms, an alkenyl group having 2 to 21 carbon atoms, an aryl group having 6 to 21 carbon atoms, an aralkyl group having 7 to 21 carbon atoms, or a substituent having a hetero atom; at least one of R 1 , R 3 and R 4 represents a substituent having a hetero atom; or R 3 and R 4 be formed into a heterocycle together with a jointly bonded nitrogen atom; and R 2 represents an alkyl group having 1 to 10 carbon atoms, a methoxymethyl group, or a trifluoromethyl group.

3. The colorant-containing curable composition of claim 2 , wherein in Formula (I), R 1 represents a hetero atom a substituent having, and R 3 and R 4 each independently represent a hydrogen atom, an alkyl group having 1 to 21 carbon atoms, an alkenyl group having 2 to 21 carbon atoms, an aryl group having 6 to 21 carbon atoms, or an aralkyl group having 7 to 21 carbon atoms.

4. The colorant-containing curable composition of claim 2 , wherein in Formula (I), at least one of R 3 and R 4 represents a substituent having a hetero atom, and R 1 represents a hydrogen atom, an alkyl group having 1 to 21 carbon atoms, an alkenyl group having 2 to 21 carbon atoms, an aryl group having 6 to 21 carbon atoms, or an aralkyl group having 7 to 21 carbon atoms.

5. The colorant-containing curable composition of claim 2 , further comprising a quadrifunctional- or higher functional (meth)acrylic ester monomer.

6. The colorant-containing curable composition of claim 2 , further comprising an alkali soluble (meth)acrylic resin having a polymerizable side-chain.

7. The colorant-containing curable composition of claim 2 , further comprising a photopolymerization initiator.

8. The colorant-containing curable composition of claim 7 , wherein the photopolymerization initiator comprises a compound which does not generate an acid by decomposition.

9. The colorant-containing curable composition of claim 7 , wherein he photopolymerization initiator is selected from the group consisting of an α-aminoketone compound, a phosphine oxide compound, a metallocene compound, an oxime compound, and a triaryl imidazole dimer.

10. The colorant-containing curable composition of claim 2 , further comprising a crosslinking agent.

11. The colorant-containing curable composition of claim 2 , which is a positive colorant-containing curable composition comprising at least one of the pyridone azo compound represented by Formula (I) and the tautomer thereof; a photo sensitizer; and a solvent.

12. The colorant-containing curable composition of claim 2 , which is a positive colorant-containing curable composition comprising at least one of the pyridone azo compound represented by Formula (I) and the tautomer thereof; a photo-acid generator; and a curing agent.

13. A color filter that contains at least one of a pyridone azo compound represented by the following Formula (I) and a tautomer thereof:

wherein R 1 , R 3 and R 4 each independently represents a hydrogen atom, an alkyl group having 1 to 21 carbon atoms, an alkenyl group having 2 to 21 carbon atoms, an aryl group having 6 to 21 carbon atoms, an aralkyl group having 7 to 21 carbon atoms, or a substituent having a hetero atom; at least one of R 1 , R 3 and R 4 represents a sub stituent having a hetero atom; or R 3 and R 4 may be formed into a heterocycle together with a jointly bonded nitrogen atom; and R 2 represents an alkyl group having 1 to 10 carbon atoms, a methoxymethyl group, or a trifluoromethyl group.

14. The color filter of claim 13 , wherein in Formula (I), R 1 represents a substituent having a hetero atom, and R 3 and R 4 each independently represent a hydrogen atom, an alkyl group having 1 to 21 carbon atoms, an alkenyl group having 2 to 21 carbon atoms, an aryl group having 6 to 21 carbon atoms, or an aralkyl group having 7 to 21 carbon atoms.

15. The color filter of claim 13 , wherein in Formula (I), at least one of R 3 and R 4 represents a substituent having a hetero atom, and R 1 represents a hydrogen atom, an alkyl group having 1 to 21 carbon atoms, an alkenyl group having 2 to 21 carbon atoms, an aryl group having 6 to 21 carbon atoms, or an aralkyl group having 7 to 21 carbon atoms.

16. A method for manufacturing the color filter of claim 13 comprising:

coating a colorant-containing curable composition onto a support;

exposing the resultant through a mask; and

developing the resultant so as to form a pattern.

17. The method of claim 16 , wherein in Formula (I), R 1 represents a substituent having a hetero atom, and R 3 and R 4 each independently represent a hydrogen atom, an alkyl group having 1 to 21 carbon atoms, an alkenyl group having 2 to 21 carbon atoms, an aryl group having 6 to 21 carbon atoms, or an aralkyl group having 7 to 21 carbon atoms.

18. The method of claim 16 , wherein in Formula (I), at least one of R 3 and R 4 represents a substituent having a hetero atom, and R 1 represents a hydrogen atom, an alkyl group having 1 to 21 carbon atoms, an alkenyl group having 2 to 21 carbon atoms, an aryl group having 6 to 21 carbon atoms, or an aralkyl group having 7 to 21 carbon atoms.