Pigment dispersion liquid, curable composition, film, near infrared cut filter, solid-state imaging element, image display device, and infrared sensor

Patent metadata

Field	Value
Publication number	US-11015077-B2
Application number	US-201916413350-A
Country	US
Kind code	B2
Filing date	May 15, 2019
Priority date	Nov 30, 2016
Publication date	May 25, 2021
Grant date	May 25, 2021

Abstract

Provided is a pigment dispersion liquid used in a curable composition capable of manufacturing a film having fewer foreign matters. Provided are a curable composition capable of manufacturing a film having fewer foreign matters, a film, a near infrared cut filter, a solid-state imaging element, an image display device, and an infrared sensor. The pigment dispersion liquid includes a near infrared absorbing organic pigment having an maximum absorption wavelength in a wavelength range of 600 to 1,200 nm; two or more kinds of pigment derivatives having different structures; and a solvent.

First claim

What is claimed is:

1. A pigment dispersion liquid comprising:
a near infrared absorbing organic pigment having a maximum absorption wavelength in a wavelength range of 600 to 1,200 nm;
two or more kinds of pigment derivatives having different structures; and
a solvent,
wherein the two or more kinds of pigment derivatives are compounds having a coloring agent structure having a skeleton common to the near infrared absorbing organic pigment and are compounds represented by Formula (1),
P L-(X) n ) m   (1)

in Formula (1), P represents a coloring agent structure, L represents a single bond or a linking group, X represents a carboxyl group, a sulfo group, a phthalimide group, or a group represented by Formulae (X-1) to (X-9), m represents an integer of 1 or more, n represents an integer of 1 or more, in a case where m is 2 or more, a plurality of L's and X's may be different from each other, and in a case where n is 2 or more, a plurality of X's may be different from each other,
wherein the coloring agent structure represented by P in Formula (1) is selected from a pyrrolo pyrrole coloring agent structure, a squarylium coloring agent structure, a cyanine compound, a phthalocyanine compound, and a diiminium compound,
wherein the compound represented by Formula (1) is a compound represented by Formula (1a) when the coloring agent structure represented by P is the pyrrolo pyrrole coloring agent structure

wherein in Formula (1a), R 1 and R 2 each independently represent an alkyl group, an aryl group, or a heteroaryl group,
L-(X) n of Formula (1a) is bonded to at least one of R 1 or R 2 ,
R 3 , R 4 , R 5 , and R 6 each independently represent a cyano group, an acyl group, an alkoxycarbonyl group, an alkylsulfinyl group, an arylsulfinyl group, or a heteroaryl group,
R 7 and R 8 each independently represent a hydrogen atom, an alkyl group, an aryl group, a heteroaryl group, —BR 9 R 10 , or a metal atom,
R 7 may form a covalent bond or a coordinate bond with R 1 , R 3 , or R 5 ,
R 8 may form a covalent bond or a coordinate bond with R 2 , R 4 , or R 6 ,
R 9 and R 10 each independently represent a hydrogen atom, a halogen atom, an alkyl group, an alkenyl group, an aryl group, a heteroaryl group, an alkoxy group, an aryloxy group, or a heteroaryloxy group, and R 9 and R 10 are bonded to each other to form a ring,
L represents an alkylene group, an arylene group, a nitrogen-containing heterocyclic group, —O—, —S—, —NR′—, —CO—, —COO—, —OCO—, —SO 2 —, or a group obtained by combining these; and R′ represents a hydrogen atom, an alkyl group, or an aryl group,
X represents a carboxyl group, a sulfo group, a phthalimide group, or a group represented by Formulae (X-1) to (X-9):

in Formulae (X-1) to (X-9), * represents a linking hand, R 100 to R 106 each independently represent a hydrogen atom, an alkyl group, an alkenyl group, or an aryl group, R 100 and R 101 may be linked to each other to form a ring, and M represents an anion and an atom or an atomic group constituting a salt, and
m represents an integer of 1 to 10, n represents an integer of 1 to 10, in a case where m is 2 or more, a plurality of L's and X's may be different from each other, and in a case where n is 2 or more, a plurality of X's may be different from each other,
wherein a total content of the pigment derivatives is 5 to 30 parts by mass with respect to 100 parts by mass of the near infrared absorbing organic pigment.

2. The pigment dispersion liquid according to claim 1 ,
wherein the near infrared absorbing organic pigment has a maximum absorption wavelength in a wavelength range of 700 to 1,000 nm.

3. The pigment dispersion liquid according to claim 1 ,
wherein at least two kinds of the two or more kinds of pigment derivatives having different structures are compounds in which L's in Formula (1) are linking groups of a structural isomer.

4. The pigment dispersion liquid according to claim 1 ,
wherein in the two or more kinds of pigment derivatives having different structures, a difference in the numbers of carbon atoms of L's in Formula (1) is 6 or less.

5. The pigment dispersion liquid according to claim 1 ,
wherein at least two kinds of the two or more kinds of pigment derivatives having different structures are compounds having different X's in Formula (1).

6. The pigment dispersion liquid according to claim 1 ,
wherein the coloring agent structure represented by P in Formula (1) is a coloring agent structure derived from a coloring agent compound having a π conjugate plane including a monocyclic or fused aromatic ring.

7. The pigment dispersion liquid according to claim 1 ,
wherein the coloring agent structure represented by P in Formula (1) is a pyrrolo pyrrole coloring agent structure or a squarylium coloring agent structure.

8. The pigment dispersion liquid according to claim 1 ,
wherein a content of one kind of the pigment derivative included in the two or more kinds of the pigment derivatives having different structures is 99 mass % or less.

9. The pigment dispersion liquid according to claim 1 ,
wherein the compound represented by Formula (1a) is a compound represented by Formula (1a-1):

wherein in Formula (1a-1), R 3 , R 4 , R 5 , and R 6 each independently represent a cyano group, an acyl group, an alkoxycarbonyl group, an alkylsulfinyl group, an arylsulfinyl group, or a heteroaryl group,
R 7 and R 8 each independently represent a hydrogen atom, an alkyl group, an aryl group, a heteroaryl group, —BR 9 R 10 , or a metal atom,
R 7 may form a covalent bond or a coordinate bond with R 3 or R 5 ,
R 8 may form a covalent bond or a coordinate bond with R 4 or R 6 ,
R 9 and R 10 each independently represent a hydrogen atom, a halogen atom, an alkyl group, an alkenyl group, an aryl group, a heteroaryl group, an alkoxy group, an aryloxy group, or a heteroaryloxy group, and R 9 and R 10 are bonded to each other to form a ring,
L 1 and L 2 each independently represent a single bond, an alkylene group, an arylene group, a nitrogen-containing heterocyclic group, —O—, —S—, —NR′—, —CO—, —SO 2 —, a linking group obtained by combining these, and R′ represents a hydrogen atom, an alkyl group, or an aryl group,
X 1 and X 2 each independently represent a carboxyl group, a sulfo group, a phthalimide group, or a group represented by Formulae (X-1) to (X-9), and
n1 and n2 each independently represent 0 to 4, and at least one of n1 or n2 is 1 or more.

10. The pigment dispersion liquid according to claim 1 ,
wherein in Formula (1), P represents a squarylium coloring agent structure.

11. The pigment dispersion liquid according to claim 1 ,
wherein in Formula (1), P represents a coloring agent structure derived from a coloring agent compound having a maximum absorption wavelength in the wavelength range of 700 to 1,000 nm.

12. The pigment dispersion liquid according to claim 1 , wherein the near infrared absorbing organic pigment is a pyrrolo pyrrole compound and the pigment derivative is a compound represented by Formula (1a).

13. The pigment dispersion liquid according to claim 1 , wherein the near infrared absorbing organic pigment is a squarylium compound and the c

Assignees

• Fujifilm Corp

Inventors

• Takahashi Kazutaka
• Arayama Kyohei
• Tsuruta Takuya
• Miyata Tetsushi

Classifications

• C09B67/0034 Primary

  Mixtures of two or more pigments or dyes of the same type · CPC title

• C09B67/0083

  Solutions of dyes · CPC title

• C09B67/0033

  Blends of pigments; Mixtured crystals; Solid solutions · CPC title

• C09B67/009

  polymeric dispersing agent · CPC title

• C09K3/00

  Materials not provided for elsewhere · CPC title