Resin composition, film, optical filter, solid image pickup element, image display device, and infrared sensor

Patent metadata

Field	Value
Publication number	US-12140786-B2
Application number	US-202016821858-A
Country	US
Kind code	B2
Filing date	Mar 17, 2020
Priority date	Sep 28, 2017
Publication date	Nov 12, 2024
Grant date	Nov 12, 2024

Abstract

A resin composition includes a near infrared absorbing colorant, an antioxidant, and a resin, in which a content of the near infrared absorbing colorant is 5 mass % or higher with respect to a total solid content of the resin composition, and the antioxidant includes a hindered amine compound.

First claim

What is claimed is:

1. A resin composition comprising:
a near infrared absorbing colorant;
an antioxidant; and
a resin,
wherein a content of the near infrared absorbing colorant is 5 mass % or higher with respect to a total solid content of the resin composition,
the antioxidant includes a hindered amine compound in an amount from 0.1 to 10 parts by mass with respect to 100 parts by mass of the near infrared absorbing colorant,
the antioxidant further includes a phenol antioxidant,
a weight-average molecular weight of the resin is 5000 to 40000,
the phenol antioxidant comprises a compount including a structure represented by Formula (A-1):

in Formula (A-1) R A1 to R A4 each independently represent a hydrogen atom or a substituent, at least one of R A1 to R A4 represents a hydrocarbon group having one or more carabon atoms, and a wave line represents a linking site, and
a content of the phenol antioxidant is form 10 to 90 parts by mass with respect to 100 parts by mass of the hindered amine compound.

2. The resin composition according to claim 1 ,
wherein the hindered amine compound is a compound having a partial structure represented by Formula (1) or a partial structure represented by Formula (2),

in Formulae (1) and (2), a wave line represents a linking site,
R 1 represents a hydrogen atom, an alkyl group, an alkoxy group, or an oxygen radical,
R 2 to R 5 each independently represent an alkyl group,
R 6 represents a substituent,
n represents an integer of 1 to 3,
in a case where n represents 1, m represents an integer of 0 to 3, in a case where n represents 2, m represents an integer of 0 to 5, and in a case where n represents 3, m represents an integer of 0 to 7, and
in a case where m represents an integer of 2 or more, m R 6 's may be the same as or different from each other.

3. The resin composition according to claim 2 ,
wherein R 2 to R 5 each independently represent an alkyl group having 1 to 3 carbon atoms, and n represents 1 or 2.

4. The resin composition according to claim 2 ,
wherein m represents 1 or more, and one or more R 6 's among m R 6 's represent a polymerizable group.

5. The resin composition according to claim 2 ,
wherein the hindered amine compound has two or more of the partial structures represented by Formula (1) or two or more of the partial structures represented by Formula (2) in one molecule.

6. The resin composition according to claim 2 ,
wherein the hindered amine compound is a polymer having the partial structure represented by Formula (1) or the partial structure represented by Formula (2).

7. The resin composition according to claim 1 ,
wherein the hindered amine compound is a compound having a partial structure represented by the following Formula (1a) or a partial structure represented by the following Formula (2a),

in Formulae (1a) and (2a), a wave line represents a linking site,
R 1 represents a hydrogen atom, an alkyl group, an alkoxy group, or an oxygen radical,
R 6 represents a substituent,
m1 represents an integer of 0 to 5, and
in a case where m1 represents an integer of 2 or more, m1 R 6 's may be the same as or different from each other.

8. The resin composition according to claim 1 , further comprising:
a surfactant.

9. The resin composition according to claim 1 ,
wherein the near infrared absorbing colorant is at least one selected from the group consisting of a cyanine compound, a squarylium compound, a pyrrolopyrrole compound, and an iminium compound.

10. The resin composition according to claim 1 , further comprising:
a curable compound.

11. The resin composition according to claim 1 , further comprising:
a radically polymerizable compound; and
a photoradical polymerization initiator.

12. The resin composition according to claim 1 , further comprising:
a silane coupling agent.

13. A film which is formed of the resin composition according to claim 1 .

14. An optical filter comprising:
the film according to claim 13 .

15. The optical filter according to claim 14 ,
wherein the optical filter is a near infrared cut filter or an infrared transmitting filter.

16. A solid image pickup element comprising:
the film according to claim 13 .

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

18. An infrared sensor comprising:
the film according to claim 13 .

19. The resin composition according to claim 1 ,
wherein the near infrared absorbing colorant is at least one selected from the group consisting of a pyrrolopyrrole compound, a cyanine compound, and a squarylium compound,
the hindered amine compound is at least one selected from the group consisting of a compound represented by following Formula (3), a polymer having a partial structure represented by the following Formula (2a) in a polymeer main chain, and a polymer having a partial structure represented by the following Formula (1a) in a polymer main chain,
the resin includes a resin having an acid group, and
a content of the resin is form 1 to 80 mass % with respect to the total solid content of the resin composition:

wherein, in Formula (3), R1 represents a hydrogen atom, an alkyl group, an alkoxy group, or an onygen radical,
R6 represents a substituent,
m1 represents an integer from 0 to 5, and in a case where m1 represents an integer of 2 or more, each R6 may be the same as or different from another R6,
n represents an integer form 1 to 8,
in a case where n represents 1, L1 represents a hydrogen atom, m1 represents 1, and R6 represents a polymerizable group,
in a case where n represents 2 or more, L1 represents an n-valent linking group, and
the n-valent linking group is a group that consists of a hydrocarbon group, a heterocyclic group, —O—, —S—, —NR—, —CO—, —COO—, —OCO—, —SO2—, or a combination of these groups, where R represents a hydrogen atom, an alkyl group, or an aryl group:

wherein, in Formulae (1a) and (2a), the wave line represents a linking site, R1 represents a hydrogen atom, an alkyl group, an alkoxy gorup, or an oxygen radical, R6 represents a substituent, and m1 represents 0.

20. The resin composition according to claim 1 ,
wherein the phenol antioxidant is a compound representd by Formula (A-2):

in Formula (A-2), R A1 to R A4 each independently represent a hydrogen atom or a substituent, and at least one of R A1 to R A4 represents a hydrocarbon group having one or more carbon atoms, n represents an integer of 1 or more, in a case where n represents 1, L A1 represents a hydrogen atom or a substituent and in a case where n represents 2 or more, L A1 represents an n-valent linking group.

21. A resin composition, comprising:
a near infrared absorbing colorant

Assignees

• Fujifilm Corp

Inventors

• Miyata Tetsushi
• Kitajima Shunsuke

Classifications

• H10F77/40

  Optical elements or arrangements (surface textures H10F77/70) · CPC title

• H10F39/8053

  Colour filters · CPC title

• G02B5/208

  for use with infrared or ultraviolet radiation, e.g. for separating visible light from infrared and/or ultraviolet radiation · CPC title

• C08L101/00

  Compositions of unspecified macromolecular compounds · CPC title

• C08L33/00

  Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers · CPC title