Coloring composition, film, color filter, solid-state imaging element, and image display device

Patent metadata

Field	Value
Publication number	US-11746239-B2
Application number	US-202016812611-A
Country	US
Kind code	B2
Filing date	Mar 9, 2020
Priority date	Oct 20, 2017
Publication date	Sep 5, 2023
Grant date	Sep 5, 2023

Abstract

A coloring composition includes a metal azo pigment, a compound having an ethylenically unsaturated bonding group, and a solvent, the metal azo pigment includes at least one kind of an anion selected from an azo compound represented by Formula (I) or an azo compound having a tautomeric structure of the azo compound represented by Formula (I), two or more kinds of metal ions, and a melamine compound, and in Formula (I), R 1 and R 2 each independently represent OH or NR 5 R 6 , R 3 and R 4 each independently represent ═O or ═NR 7 , and R 5 to R 7 each independently represent a hydrogen atom or an alkyl group.

First claim

What is claimed is:

1. A coloring composition comprising:
a metal azo pigment which includes at least one kind of an anion selected from an azo compound represented by Formula (I) or an azo compound having a tautomeric structure of the azo compound represented by Formula (I), two or more kinds of metal ions, and a melamine compound;
a compound which has an ethylenically unsaturated bonding group;
a photopolymerization initiator;
a polymerization inhibitor; and
a solvent,
wherein the compound which has an ethylenically unsaturated bonding group includes a monomer having an ethylenically unsaturated bonding group with a C═C equivalent of 50 to 140,
the photopolymerization initiator is an oxime compound,
the solvent includes toluene and a solvent other than the toluene, and
a content of the toluene in the coloring composition is 0.1 to 10 ppm by mass,

in the formula, R 1 and R 2 each independently represent OH or NR 5 R 6 , R 3 and R 4 each independently represent ═O or ═NR 7 , and R 5 to R 7 each independently represent a hydrogen atom or an alkyl group.

2. The coloring composition according to claim 1 ,
wherein the metal azo pigment includes the anion, the metal ions including at least Zn 2+ and Cu 2+ , and the melamine compound.

3. The coloring composition according to claim 2 ,
Wherein the at least Zn 2+ and Cu 2+ are contained in a total amount of 95% to 100% by mole based on 1 mol of all the metal ions in the metal azo pigment.

4. The coloring composition according to claim 2 ,
wherein a molar ratio of the at least Zn 2+ to Cu 2+ in the metal azo pigment is Zn 2+ :Cu 2+ =199:1 to 1:15.

5. The coloring composition according to claim 1 ,
wherein the melamine compound in the metal azo pigment is a compound represented by Formula (II),

in the formula, R 11 to R 13 each independently represent a hydrogen atom or an alkyl group.

6. The coloring composition according to claim 1 ,
wherein the compound which has an ethylenically unsaturated bonding group is contained 10 parts by mass or more with respect to 100 parts by mass of the metal azo pigment.

7. The coloring composition according to claim 1 , further comprising:
a pigment derivative.

8. The coloring composition according to claim 7 ,
wherein the pigment derivative is a basic pigment derivative.

9. The coloring composition according to claim 1 ,
wherein the coloring composition is used for a solid-state imaging element.

10. A film obtained from the coloring composition according to claim 1 .

11. A color filter comprising the film according to claim 10 .

12. A solid-state imaging element comprising the film according to claim 10 .

13. An image display device comprising the film according to claim 10 .

14. The coloring composition according to claim 1 , further comprising:
a basic pigment derivative represented by Formula (syn2),
wherein a content of the compound which has an ethylenically unsaturated bonding group is 10 parts by mass or more with respect to 100 parts by mass of the metal azo pigment,

in the Formula (syn2), Rp1 represents an alkyl group or an aryl group,
Rp2 represents a single bond, —NR—, —CO—, —CO 2 —, —SO 2 —, —O—, —S—, or a group formed by a combination of these groups, R represents a hydrogen atom, an alkyl group, or an aryl group,
B 1 represents a single bond or a (t+1)-valent linking group,
C 1 represents a single bond, —NR—, —CO—, —CO 2 —, —SO 2 —, —O—, —S—, or a group formed by a combination of these groups, R represents a hydrogen atom, an alkyl group, or an aryl group,
D 1 represents a single bond, an alkylene group, or an arylene group,
E 1 represents an acid group, a basic group, or a phthalimide group, and
t represents an integer of 1 to 5.

15. The coloring composition according to claim 14 ,
wherein the compound which has an ethylenically unsaturated bonding group further includes a polymer having an ethylenically unsaturated bonding group with a C═C equivalent of 100 to 5,000,
the polymer having an ethylenically unsaturated bonding group with a C═C equivalent of 100 to 5,000 includes a repeating unit represented by Formula (A-1-1) and a repeating unit having a graft chain represented by Formula (G-1a), Formula (G-2a), Formula (G-3a), Formula (G-4a), or Formula (G-5a), and
the content of the compound which has an ethylenically unsaturated bonding group is 10 parts by mass to 100 parts by mass with respect to 100 parts by mass of the metal azo pigment,

in Formula (A-1-1),
X 1 represents a main chain of a repeating unit,
L 1 represents a single bond or a divalent linking group, and
Y 1 represents an ethylenically unsaturated bonding group, and

in Formulae (G-1a) to Formula (G-5a),
R G1 and R G2 each independently represents an alkylene group,
R G3 represents a hydrogen atom or a methyl group,
Q G1 represents —O— or —NH—,
L G1 represents a single bond or a divalent linking group,
R G4 represents a hydrogen atom or a substituent,
W 100 represents a hydrogen atom or a substituent, and
n1 to n5 each independently represents an integer of 2 or more.

16. The coloring composition according to claim 15 ,
wherein a molecular weight of the monomer having an ethylenically unsaturated bonding group with a C═C equivalent of 50 to 140 is less than 3,000, and
a molecular weight of the polymer having an ethylenically unsaturated bonding group with a C═C equivalent of 100 to 5,000 is 3,000 or more.

Assignees

• Fujifilm Corp

Inventors

• Nakamura Shoichi
• Ota Kazuya
• Inabe Haruki

Classifications

• H10F39/12

  Image sensors · CPC title

• C09B56/02 Primary

  Azomethine-azo dyes {(1,2-Complex dyes of AZOMETHINE and AZO dyes, C09B55/001)} · CPC title

• C09B44/108

  characterised by a cyclammonium six-membered specific ring not mentioned hereafter, e.g. pyrimidinium, perimidinium, pyridazonium, oxazinium · CPC title

• G02B5/223

  containing organic substances, e.g. dyes, inks or pigments · CPC title

• C09B67/0041 Primary

  mixtures containing one azo dye · CPC title