Classifications

• • G—PHYSICS
  • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
  • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
  • G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
  • G03F7/004—Photosensitive materials
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
  • C08F2/00—Processes of polymerisation
  • C08F2/38—Polymerisation using regulators, e.g. chain terminating agents, e.g. telomerisation
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
  • C08F2/00—Processes of polymerisation
  • C08F2/44—Polymerisation in the presence of compounding ingredients, e.g. plasticisers, dyestuffs, fillers
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
  • C08F2/00—Processes of polymerisation
  • C08F2/46—Polymerisation initiated by wave energy or particle radiation
  • C08F2/48—Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light
  • C08F2/50—Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light with sensitising agents
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
  • C08F290/00—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups
  • C08F290/08—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups on to polymers modified by introduction of unsaturated side groups
  • C08F290/12—Polymers provided for in subclasses C08C or C08F
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
  • C08F290/00—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups
  • C08F290/08—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups on to polymers modified by introduction of unsaturated side groups
  • C08F290/14—Polymers provided for in subclass C08G
• • G—PHYSICS
  • G02—OPTICS
  • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
  • G02B5/00—Optical elements other than lenses
  • G02B5/20—Filters
• • G—PHYSICS
  • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
  • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
  • G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
  • G03F7/004—Photosensitive materials
  • G03F7/027—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds
  • G03F7/028—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds with photosensitivity-increasing substances, e.g. photoinitiators
  • G03F7/031—Organic compounds not covered by group G03F7/029
• • G—PHYSICS
  • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
  • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
  • G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
  • G03F7/004—Photosensitive materials
  • G03F7/027—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds
  • G03F7/032—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds with binders
• • G—PHYSICS
  • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
  • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
  • G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
  • G03F7/004—Photosensitive materials
  • G03F7/027—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds
  • G03F7/032—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds with binders
  • G03F7/033—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds with binders the binders being polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. vinyl polymers
• • G—PHYSICS
  • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
  • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
  • G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
  • G03F7/004—Photosensitive materials
  • G03F7/09—Photosensitive materials characterised by structural details, e.g. supports, auxiliary layers
  • G03F7/105—Photosensitive materials characterised by structural details, e.g. supports, auxiliary layers having substances, e.g. indicators, for forming visible images
• • G—PHYSICS
  • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
  • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
  • G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
  • G03F7/20—Exposure; Apparatus therefor
  • G03F7/2002—Exposure; Apparatus therefor with visible light or UV light, through an original having an opaque pattern on a transparent support, e.g. film printing, projection printing; by reflection of visible or UV light from an original such as a printed image
  • G03F7/2004—Exposure; Apparatus therefor with visible light or UV light, through an original having an opaque pattern on a transparent support, e.g. film printing, projection printing; by reflection of visible or UV light from an original such as a printed image characterised by the use of a particular light source, e.g. fluorescent lamps or deep UV light
• • H—ELECTRICITY
  • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
  • H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
  • H10F39/00—Integrated devices, or assemblies of multiple devices, comprising at least one element covered by group H10F30/00, e.g. radiation detectors comprising photodiode arrays
  • H10F39/10—Integrated devices
  • H10F39/12—Image sensors
  • H10F39/18—Complementary metal-oxide-semiconductor [CMOS] image sensors; Photodiode array image sensors
  • H10F39/182—Colour image sensors

Definitions

• the present disclosure relates to a curable composition, a method for producing a cured product, a film, an optical element, an image sensor, a solid-state image sensor, an image display device, and a radical polymerization initiator.
• Optical filters such as color filters are manufactured using a curable composition containing a colorant, a photopolymerization initiator, and a polymerizable compound.
• a curable composition containing a colorant, a photopolymerization initiator, and a polymerizable compound.
• the composition described in International Publication No. 2015/152153 or International Publication No. 2017/051680 is known.
• International Publication No. 2015/152153 or International Publication No. 2017/051680 describes an oxime ester compound having an indole core.
• a problem to be solved by embodiments of the present disclosure is to provide a curable composition that is highly sensitive. Further, the problem to be solved by other embodiments of the present disclosure is to provide a method for producing a cured product using the above-mentioned curable composition, a film, an optical element, an image sensor, a solid-state image sensor, or an image display device. That's true. Furthermore, a problem to be solved by other embodiments of the present disclosure is to provide a novel radical polymerization initiator.
• Means for solving the above problems include the following aspects. ⁇ 1> A curable composition containing a radical polymerization initiator represented by formula (1) and a radically polymerizable compound.
• Ar 1 represents an m-valent linking group
• R 1 each independently represents an alkyl group, an aryl group, an alkoxy group, an aryloxy group, a heteroaryl group, or a heteroaryloxy group.
• R 15 to R 19 each independently represent a hydrogen atom, a halogen atom, an alkyl group, an aryl group, a nitro group, an alkoxy group, or an aryloxy group, and two or more R 15 to R 19 are connected to each other to form a ring.
• structure may be formed, and the formed ring structure may be an aromatic ring
• Y 1 each independently represents a hydrogen atom, an alkyl group, or an aryl group
• m represents an integer from 2 to 4
• n each independently represents 0 or 1.
• R 2 represents an alkyl group, provided that when L 2 is CHR, R 2 may be a hydrogen atom, R 3 represents a hydrogen atom or an alkyl group, and R 4 is an alkyl group.
• L 1 and L 2 each independently represent CHR, O, S or NR
• R each independently represents a hydrogen atom or an alkyl group, and among R 2 , R 3 , R 4 and R Two or more of these may be linked to each other to form a ring structure
• Z represents a single bond or an alkylene group having 1 to 6 carbon atoms
• * represents a linking portion with an oxime group.
• L 3 and L 4 each independently represent CHR, O, S, or NR, at least one of L 3 and L 4 is CHR, and R represents a hydrogen atom or an alkyl group.
• R 5 each independently represents a hydrogen atom or an alkyl group, p represents an integer of 1 to 6, and * represents a linkage with an oxime group.
• Ar 1 is 2 or more selected from the group consisting of an m-valent aromatic group, an m-valent heteroaromatic group, or a monovalent or more aromatic group and a monovalent or more heteroaromatic group is an m-valent group formed by bonding groups, and the m-valent group is between two of the aromatic groups, between two of the heteroaromatic groups, and between the aromatic group and the heteroaromatic group. It may be bonded to the group group through an alkylene group, O, S, NR, carbonyl group, sulfoxy group, or sulfonyl group, and each of the above R independently represents a hydrogen atom or an alkyl group.
• ⁇ 5> The curable composition according to any one of ⁇ 1> to ⁇ 4>, wherein Ar 1 is a group represented by the following formula (4), and m is 2.
• L 5 represents a single bond, a carbonyl group, a sulfonyl group, or -CO-Ar 2 (-L 6 -Ar 2 ) q3 -CO-
• each Ar 2 independently represents a divalent represents an aromatic group or a divalent heteroaromatic group
• L6 represents a single bond, O, S, or NR
• R represents a hydrogen atom or an alkyl group
• q3 represents an integer of 0 or more
• R 41 and R 42 each independently represent an alkyl group, an alkoxy group, a nitro group, or a halogen atom, and two or more of R 41 and R 42 may be bonded to each other to form a ring structure, and the above ring
• the structure may form an aromatic ring
• q1 and q2 each independently represent an integer of 0 to 4, and ** represents a linkage with an indole ring structure.
• ⁇ 6> The curable composition according to any one of ⁇ 1> to ⁇ 5>, wherein n is 0.
• n is 0.
• ⁇ 8> The curable composition according to ⁇ 7>, wherein the content of the colorant is 60% by mass or more based on the total solid content of the composition.
• ⁇ 9> The curable composition according to any one of ⁇ 1> to ⁇ 8>, further comprising a resin.
• the resin is a graft polymer having a graft chain, and the graft chain includes at least one selected from the group consisting of a polyether chain, a polyester chain, and a polyacrylic chain, and
• the curable composition according to ⁇ 9> comprising a resin having a weight average molecular weight of 1,000 or more.
• ⁇ 13> The curable composition according to any one of ⁇ 1> to ⁇ 12>, further comprising a chain transfer agent.
• ⁇ 14> The curable composition according to any one of ⁇ 1> to ⁇ 13>, which is used for excimer laser exposure with a wavelength of 150 nm to 300 nm.
• ⁇ 15> A method for producing a cured product, comprising a step of irradiating the curable composition according to any one of ⁇ 1> to ⁇ 14> with excimer laser light having a wavelength of 150 nm to 300 nm.
• ⁇ 16> A film obtained by curing the curable composition according to any one of ⁇ 1> to ⁇ 14>.
• ⁇ 17> An optical element comprising the film according to ⁇ 16>.
• An image sensor comprising the film according to ⁇ 16>.
• a solid-state imaging device comprising the film according to ⁇ 16>.
• An image display device including the film according to ⁇ 16>.
• Ar 1 represents an m-valent linking group
• R 1 each independently represents an alkyl group, an aryl group, an alkoxy group, an aryloxy group, a heteroaryl group, or a heteroaryloxy group.
• R 15 to R 19 each independently represent a hydrogen atom, a halogen atom, an alkyl group, an aryl group, a nitro group, an alkoxy group, or an aryloxy group, and two or more R 15 to R 19 are connected to each other to form a ring.
• structure may be formed, and the formed ring structure may be an aromatic ring
• Y 1 each independently represents a hydrogen atom, an alkyl group, or an aryl group
• m represents an integer from 2 to 4
• n each independently represents 0 or 1.
• a highly sensitive curable composition is provided. Further, according to other embodiments of the present disclosure, there are provided a method for producing a cured product, a film, an optical element, an image sensor, a solid-state image sensor, or an image display device using the above-mentioned curable composition. Furthermore, according to other embodiments of the present disclosure, a novel radical polymerization initiator is provided.
• alkyl group includes not only an alkyl group without a substituent (unsubstituted alkyl group) but also an alkyl group having a substituent (substituted alkyl group).
• exposure includes not only exposure using light but also drawing using particle beams such as electron beams and ion beams, unless otherwise specified.
• the light used for exposure include actinic rays or radiation such as the bright line spectrum of a mercury lamp, far ultraviolet rays typified by excimer lasers, extreme ultraviolet rays (EUV light), X-rays, and electron beams.
• (meth)acrylate represents acrylate and/or methacrylate
• (meth)acrylic represents both acrylic and/or methacrylic
• (meth)acrylate represents acrylic and/or methacrylate.
• "Acryloyl” refers to either or both of acryloyl and methacryloyl.
• Me in the structural formula represents a methyl group
• Et represents an ethyl group
• Bu represents a butyl group
• Ph represents a phenyl group.
• the weight average molecular weight and number average molecular weight are polystyrene equivalent values measured by GPC (gel permeation chromatography).
• the total solid content refers to the total mass of all components of the composition excluding the solvent.
• pigment means a colorant that is difficult to dissolve in a solvent.
• the term "process" is used not only to refer to an independent process, but also to include a process in which the intended effect of the process is achieved even if the process cannot be clearly distinguished from other processes. .
• oxime compounds in which E-form and Z-form stereoisomers exist may be either E-form or Z-form unless otherwise specified. The present disclosure will be described in detail below.
• the curable composition according to the present disclosure includes a radical polymerization initiator represented by formula (1) and a radically polymerizable compound. Further, the curable composition according to the present disclosure can be suitably used as a photocurable composition, and more suitably used as a curable composition for exposure to light with a wavelength of 150 nm to 300 nm, and It can be particularly suitably used as a curable composition for 300 nm excimer laser exposure.
• Ar 1 represents an m-valent linking group
• R 1 each independently represents an alkyl group, an aryl group, an alkoxy group, an aryloxy group, a heteroaryl group, or a heteroaryloxy group.
• R 15 to R 19 each independently represent a hydrogen atom, a halogen atom, an alkyl group, an aryl group, a nitro group, an alkoxy group, or an aryloxy group, and two or more R 15 to R 19 are connected to each other to form a ring.
• structure may be formed, and the formed ring structure may be an aromatic ring
• Y 1 each independently represents a hydrogen atom, an alkyl group, or an aryl group
• m represents an integer from 2 to 4
• n each independently represents 0 or 1.
• the radical polymerization initiator represented by the above formula (1) has two or more indole ring structures and two or more oxime ester structures, so that the indole structure improves light absorption efficiency, and the oxime ester structure improves light absorption efficiency. It is estimated that the generation of radicals is also promoted, and the presence of two or more of these makes it possible to obtain a highly sensitive curable composition.
• the curable composition according to the present disclosure is preferably used as a curable composition for optical filters.
• the optical filter include color filters and infrared transmission filters, and color filters are preferred. That is, the curable composition according to the present disclosure is preferably used as a curable composition for color filters. More specifically, it can be preferably used as a curable composition for forming pixels of color filters. Types of pixels include red pixels, green pixels, blue pixels, magenta pixels, cyan pixels, yellow pixels, and the like.
• the infrared transmission filter has a maximum transmittance of 20% or less (preferably 15% or less, more preferably 10% or less) in the wavelength range of 400 nm to 640 nm, and Preferred examples include filters that satisfy spectral characteristics such that the minimum value of transmittance is 70% or more (preferably 75% or more, more preferably 80% or more).
• the infrared transmission filter is preferably a filter that satisfies any of the following spectral characteristics (1) to (5).
• the maximum transmittance in the wavelength range of 400 nm to 640 nm is 20% or less (preferably 15% or less, more preferably 10% or less), and the minimum transmittance in the wavelength range of 800 nm to 1,500 nm.
• a filter having a value of 70% or more (preferably 75% or more, more preferably 80% or more).
• the maximum value of transmittance in the wavelength range of 400 nm to 750 nm is 20% or less (preferably 15% or less, more preferably 10% or less), and the minimum transmittance value in the wavelength range of 900 nm to 1,500 nm.
• a filter having a value of 70% or more (preferably 75% or more, more preferably 80% or more).
• the maximum value of transmittance in the wavelength range of 400 nm to 830 nm is 20% or less (preferably 15% or less, more preferably 10% or less), and the transmittance in the wavelength range of 1,000 nm to 1,500 nm.
• a filter whose minimum value is 70% or more (preferably 75% or more, more preferably 80% or more).
• the maximum value of transmittance in the wavelength range of 400 nm to 950 nm is 20% or less (preferably 15% or less, more preferably 10% or less), and the transmittance in the wavelength range of 1,100 nm to 1,500 nm.
• a filter whose minimum value is 70% or more (preferably 75% or more, more preferably 80% or more).
• the maximum value of transmittance in the wavelength range of 400 nm to 1,050 nm is 20% or less (preferably 15% or less, more preferably 10% or less), and the transmittance in the wavelength range of 1,200 nm to 1,500 nm is A filter having a minimum transmittance of 70% or more (preferably 75% or more, more preferably 80% or more).
• the curable composition according to the present disclosure is preferably used for solid-state imaging devices. More specifically, it is preferably used as a curable composition for optical filters used in solid-state imaging devices, and more preferably used as a curable composition for color filters used in solid-state imaging devices.
• the solid content concentration of the curable composition according to the present disclosure is preferably 5% by mass to 40% by mass.
• the lower limit is more preferably 7.5% by mass or more, and even more preferably 10% by mass or more.
• the upper limit is more preferably 35% by mass or less, and even more preferably 30% by mass or less.
• the curable composition according to the present disclosure includes a radical polymerization initiator represented by the above formula (1).
• the radical polymerization initiator represented by the above formula 1 is preferably a radical photopolymerization initiator, and more preferably a radical photopolymerization initiator that generates radicals by light with a wavelength of 150 nm to 300 nm.
• the exposure wavelength at which the radical polymerization initiator represented by the above formula (1) generates radicals is preferably 150 nm to 460 nm, more preferably 150 nm to 420 nm, even more preferably 150 nm to 380 nm, and particularly preferably 150 nm to 300 nm.
• the carbon number (also referred to as "carbon atom number") of Ar 1 in formula (1) is preferably 6 to 1,000, more preferably 6 to 800, and 7 to 800. It is more preferably 600, and particularly preferably 12-500.
• Ar 1 in formula (1) is preferably a linking group that connects m indole rings with a conjugated chain.
• Ar 1 in formula (1) preferably has one or more ring structures selected from the group consisting of aromatic rings and heteroaromatic rings; It is more preferable to have 2 or more rings in total, even more preferably to have 2 or more aromatic rings, and particularly preferably to have 2 to 4 aromatic rings. Further, from the viewpoint of sensitivity, the total number of aromatic rings and heteroaromatic rings in Ar 1 is preferably 10 or less, more preferably 6 or less.
• Ar 1 in formula (1) is an m-valent aromatic group, an m-valent heteroaromatic group, a monovalent or more aromatic group, and a monovalent or more heteroaromatic group.
• it is an m-valent group formed by bonding two or more groups selected from the group consisting of: two or more groups selected from the group consisting of a monovalent or more aromatic group and a monovalent or more heteroaromatic group
• the group is an m-valent aromatic group, an m-valent heteroaromatic group, or at least one monovalent or more aromatic group between two or more monovalent or more aromatic groups.
• m-valent group is more preferably an m-valent group bonded via an alkylene group, O, S, NR, carbonyl group, sulfoxy group, or sulfonyl group, and between 2 to 4 monovalent or higher aromatic groups, the alkylene Particularly preferred are m-valent groups bonded via a group, O, S, NR, carbonyl group, sulfoxy group, or sulfonyl group.
• the m-valent group is an alkylene group, O , S, NR, a carbonyl group, a sulfoxy group, or a sulfonyl group. From the viewpoint of sensitivity, it is preferable to bond through an alkylene group, O, S, or NR.
• each of the above R's independently represents a hydrogen atom or an alkyl group.
• the aromatic group of Ar 1 in formula (1) is preferably an aromatic group having 6 to 20 carbon atoms, more preferably an aromatic group having 6 to 12 carbon atoms, and Particularly preferred are aromatic groups having a number of 6 to 10.
• the connecting portion between Ar 1 and the m indole ring structures in formula (1) is not particularly limited, and for example, one aromatic group may have m connecting portions, Each of the m aromatic groups may have one linking portion.
• the aromatic group and heteroaromatic group in Ar 1 in formula (1) may further have a substituent.
• the substituent is not particularly limited, and substituents having 0 to 100 carbon atoms are preferably mentioned, and substituents having 0 to 50 carbon atoms are more preferably mentioned. Examples of the above substituents include halogen atoms, hydroxy groups, amino groups, alkyl groups, alkenyl groups, heterocyclic groups, aryl groups, heteroaryl groups, acyl groups, nitro groups, cyano groups, sulfo groups, and alkylaminocarbonyl groups.
• substituents may further have a substituent, or the substituents may be bonded to each other to form a ring structure.
• Ar 1 in formula (1) is preferably a group represented by formula (4) below, and m is preferably 2.
• L 5 represents a single bond, a carbonyl group, a sulfonyl group, or -CO-Ar 2 (-L 6 -Ar 2 ) q3 -CO-
• each Ar 2 independently represents a divalent represents an aromatic group or a divalent heteroaromatic group
• L6 represents a single bond, O, S, or NR
• R represents a hydrogen atom or an alkyl group
• q3 represents an integer of 0 or more
• R 41 and R 42 each independently represent an alkyl group, an alkoxy group, a nitro group, or a halogen atom, and two or more of R 41 and R 42 may be bonded to each other to form a ring structure, and the above ring
• the structure may form an aromatic ring
• q1 and q2 each independently represent an integer of 0 to 4, and ** represents a linkage with an indole ring structure.
• L 5 in formula (4) is preferably a carbonyl group, a sulfonyl group, or -CO-Ar 2 (-L 6 -Ar 2 ) q3 -CO-.
• Each of the Ar 2 groups independently is preferably a divalent aromatic group, more preferably a phenylene group, and particularly preferably a p-phenylene group.
• the above L 6 is preferably O, S, or NR from the viewpoint of sensitivity.
• q3 is preferably an integer of 0 to 3, more preferably an integer of 1 or 2, and particularly preferably 1.
• L 6 is a single bond or NR
• two Ar 2s adjacent to each other via one L 6 are further bonded via a single bond or an alkylene group to form a ring structure.
• the above L 6 is NR
• two Ar 2s adjacent to each other via one L 6 are further bonded via a single bond to form a carbazole ring structure.
• R 41 and R 42 in formula (4) are each independently preferably an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 4 carbon atoms, a nitro group, or a halogen atom, from the viewpoint of sensitivity, and methyl More preferably, they are a group, a methoxy group, a nitro group, or a bromine atom.
• q1 and q2 in formula (4) are each independently preferably an integer of 0 to 2, more preferably 0 or 1, and particularly preferably 0. Further, when the above q1 and the above q2 are 1 or more, from the viewpoint of sensitivity, the substitution positions of the above R 41 and the above R 42 preferably include at least the ortho position of L 5 .
• Ar1-8 , Ar1-9, Ar1-10, Ar1-11, Ar1-12, Ar1-14, Ar1-15, Ar1-17, Ar1-18 and Ar1- At least one group selected from the group consisting of Ar1-12, Ar1-14, Ar1-15, Ar1-17, Ar1-18 and Ar1-19 is preferable. It is more preferable that it is one type of group, and Ar1-18 is particularly preferable.
• the monovalent organic group in R 1 and R 15 to R 19 in formula (1) is, for example, a hydroxy group, an amino group, an alkyl group, an alkenyl group, a heterocyclic group, an aryl group, a heteroaryl group, an acyl group, a nitro group, cyano group, sulfo group, alkylaminocarbonyl group, alkoxycarbonyl group, alkylthio group, arylthio group, morpholino group, alkoxyalkyl group, carboxy group, carboxyalkyl group, and the like.
• these substituents may further have a substituent, or the substituents may be bonded to each other to form a ring structure.
• the monovalent organic group preferably has 0 to 100 carbon atoms, more preferably 0 to 50 carbon atoms, and particularly preferably 1 to 12 carbon atoms.
• R 1 in formula (1) is preferably an alkyl group, an aryl group, an alkoxy group, or an aryloxy group, more preferably an alkyl group, and an alkyl group having 1 to 4 carbon atoms. More preferably, it is a methyl group, and a methyl group is particularly preferred.
• R 15 to R 18 in formula (1) may each independently be a hydrogen atom, a bromine atom, an alkyl group having 1 to 8 carbon atoms, a nitro group, or an alkoxy group having 1 to 8 carbon atoms.
• R 19 in formula (1) is preferably a hydrogen atom, an alkyl group, or an aryl group, and is a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, or an aryl group having 6 to 20 carbon atoms. is more preferable, a hydrogen atom, a bromine atom, a methyl group or a phenyl group is even more preferable, and a hydrogen atom is particularly preferable.
• Y 1 in formula (1) is preferably an alkyl group having a branched structure.
• the branched structure may be chain-like or cyclic, but from the viewpoint of sensitivity, it is more preferably cyclic. That is, Y 1 is more preferably an alkyl group having a ring structure.
• the position of the branched structure is preferably the ⁇ position of the oxime group, and more preferably one hydrogen atom ( ⁇ hydrogen) is present at the ⁇ position.
• Y 1 in formula (1) is preferably an alkyl group having a hetero atom, and more preferably an alkyl group having an oxygen atom, a sulfur atom, or a nitrogen atom.
• Y 1 in formula (1) is an unsubstituted alkyl group having a linear, branched, or ring structure, an aryl group, or at least one substituent selected from the following Group A. It is preferably an alkyl group having a methyl group or an alkyl group having at least one substituent selected from the above group A, and more preferably an alkyl group having at least one substituent selected from the above group A. It is more preferably an alkyl group having at least one substituent selected from the following Group B, and particularly preferably an alkyl group having at least one substituent selected from the following Group C. Most preferably.
• R a each independently represents a hydrogen atom, an alkyl group, an aryl group, or a heteroaryl group.
• the above R a is each independently preferably an alkyl group, an aryl group, or a heteroaryl group, more preferably an alkyl group, and particularly preferably a cycloalkyl group.
• the above R b is each independently preferably a hydrogen atom or an alkyl group, more preferably an alkyl group.
• the above R c is preferably an alkyl group or an aryl group, and preferably an alkyl group.
• the above R d is each independently preferably an alkylene group, more preferably an ethylene group or a propylene group. Furthermore, two or more of the above R a to R c may be combined to form a ring structure.
• Y 1 in formula (1) is preferably a group represented by the following formula (2) from the viewpoint of sensitivity.
• R 2 represents an alkyl group, provided that when L 2 is CHR, R 2 may be a hydrogen atom, R 3 represents a hydrogen atom or an alkyl group, and R 4 is an alkyl group.
• L 1 and L 2 each independently represent CHR, O, S or NR
• R each independently represents a hydrogen atom or an alkyl group, and among R 2 , R 3 , R 4 and R Two or more of these may be linked to each other to form a ring structure
• Z represents a single bond or an alkylene group having 1 to 6 carbon atoms
• * represents a linking portion with an oxime group.
• R 2 in formula (2) is preferably an alkyl group.
• R 3 in formula (2) is preferably a hydrogen atom.
• R 4 in formula (2) is preferably an alkyl group.
• R 2 and R 4 are preferably bonded to each other to form a ring structure, and R 2 and R 4 are preferably bonded to each other to form an aliphatic hydrocarbon ring structure. is more preferable.
• L 1 in formula (2) is preferably O, S, or NR, and more preferably O or NR.
• L 2 in formula (2) is preferably CHR.
• R in the above NR is preferably an alkyl group, more preferably a methyl group or a cycloalkyl group, and particularly preferably a methyl group, a cyclopentyl group, or a cyclohexyl group.
• R in the above CHR is preferably a hydrogen atom.
• Z in formula (2) is preferably a single bond or an alkylene group having 1 to 4 carbon atoms, more preferably a single bond, a methylene group or an ethylene group, and is a single bond. is particularly preferred.
• Y 1 in formula (1) is more preferably a group represented by formula (3) below.
• L 3 and L 4 each independently represent CHR, O, S, or NR, at least one of L 3 and L 4 is CHR, and R represents a hydrogen atom or an alkyl group.
• R 5 each independently represents a hydrogen atom or an alkyl group, p represents an integer of 1 to 6, and * represents a linkage with an oxime group.
• L 3 in formula (3) is preferably O, S, or NR.
• L 4 in formula (3) is preferably CHR.
• a preferred embodiment of R in formula (3) is the same as a preferred embodiment of R in formula (2).
• R 5 in formula (3) is preferably a hydrogen atom.
• p in formula (3) is preferably an integer of 3 to 5, more preferably 3 or 4, and particularly preferably 3.
• Y- 1 , Y-2, Y-3, Y-12, Y-13, Y-14, Y-15, Y-16, Y-17, Y- 18, Y-22 and Y-26 preferably at least one group selected from the group consisting of Y-1, Y-2, Y-3, Y-12, Y-13, Y-14 , Y-15, Y-16, Y-17 and Y-18, more preferably at least one group selected from the group consisting of Y-2, Y-13, Y-14, Y-15 , Y-16, Y-17 and Y-18.
• Each group may further have a substituent.
• the substituents mentioned above for Ar 1 are preferably mentioned.
• n in formula (1) is preferably 0.
• the radical polymerization initiator represented by the above formula (1) may have absorption at a wavelength of 193 nm which is an ArF absorption region, a wavelength of 248 nm which is a KrF absorption region, or a wavelength of 365 nm which is an i-line absorption region.
• A-1 to A-166 are preferably mentioned, but it goes without saying that the radical polymerization initiator is not limited to these.
• Ar1-1 to Ar1-23 and Y-1 to Y-35 are the same groups as Ar1-1 to Ar1-23 and Y-1 to Y-35 described above, respectively.
• tBu represents a t-butyl group
• Ph represents a phenyl group.
• the curable composition according to the present disclosure may contain one type of radical polymerization initiator represented by the above formula (1), or may contain two or more types. When two or more types are used, the total amount thereof is preferably within the following range.
• the content of the radical polymerization initiator represented by the above formula (1) is 0.01% by mass to 30% by mass based on the total solid content of the curable composition, from the viewpoint of sensitivity and uniformity of the coating film. is preferred, 0.05% by mass to 25% by mass is more preferred, even more preferably 0.1% to 20% by mass, and particularly preferably 1% to 15% by mass.
• the radical polymerization initiator represented by the above formula (1) preferably does not have absorption at a wavelength of 450 nm or more, more preferably does not have absorption at a wavelength of 420 nm or more, and absorbs at a wavelength range longer than 400 nm. It is particularly preferable not to have.
• "having no absorption” means that the gram extinction coefficient at the wavelength is 100 L ⁇ g ⁇ 1 ⁇ cm ⁇ 1 or less.
• the radical polymerization initiator represented by the above formula (1) is preferably white to light yellow in color. The above colors are preferable because they have little influence on the spectrum of the color filter.
• the method for producing the radical polymerization initiator represented by the above formula (1) is not particularly limited, and may be produced by a known method or with reference to a known method.
• a method for producing the radical polymerization initiator represented by the above formula (1) for example, a polyfunctional halogen compound having an electron-withdrawing group (carbonyl group, sulfonyl group, etc.) and a substituted indole compound are mixed under basic conditions.
• Examples of the method include synthesizing an oxime precursor by subjecting it to an aromatic nucleophilic substitution reaction, further converting it into oxime and oxime ester, and acetylating the hydroxy group of the oxime group.
• An example is as follows.
• a known method can be used for oxime formation. That is, a ketone can be converted into an oxime with hydroxylamine and then converted into an oxime ester with an acid chloride.
• a known method can be used for ketooximation. That is, by treating a ketone with isoamyl nitrite in a base, the ⁇ -position can be converted into an oxime, and then the ketone can be converted into an oxime ester with an acid chloride.
• the curable composition according to the present disclosure may contain a radical polymerization initiator other than the radical polymerization initiator represented by the above formula (1).
• Other radical polymerization initiators include oxime compounds, ⁇ -aminoacetophenone compounds, ⁇ -hydroxyketone compounds, acylphosphine compounds, and the like. Among these, oxime compounds are preferred.
• oxime compounds examples include the compound described in paragraph 0142 of International Publication No. 2022/085485, the polymer described in JP-A-2020-172619, and the compound represented by formula 1 described in International Publication No. 2020/152120. , oxime ester compounds described in International Publication No. 2021/023144, and the like.
• compounds described in paragraph 0142 of International Publication No. 2022/085485 can be used.
• TR-PBG-327 manufactured by Tronly
• the oxime compound it is also preferable to use a compound without coloring property or a compound with high transparency and resistance to discoloration.
• oxime compounds include compounds described in paragraphs 0083 to 0105 of Japanese Patent No. 4,600,600.
• the following compounds can be particularly preferably exemplified.
• the content of the radical polymerization initiator represented by the above formula (1) is determined by the total mass of the polymerization initiator. It is preferably 10% by mass or more, more preferably 50% by mass or more, even more preferably 80% by mass or more, and particularly preferably 90% by mass or more.
• the curable composition according to the present disclosure preferably contains a colorant.
• the coloring agent include chromatic coloring agents and black coloring agents.
• the chromatic colorant include colorants having a maximum absorption wavelength in the wavelength range of 400 nm to 700 nm. Examples include green coloring agent, red coloring agent, yellow coloring agent, purple coloring agent, blue coloring agent, orange coloring agent, and the like.
• the coloring agent may be a pigment or a dye.
• the coloring agents include diketopyrrolopyrrole pigments, quinacridone pigments, anthraquinone pigments, perylene pigments, phthalocyanine pigments, isoindoline pigments, quinophthalone pigments, azo pigments, azomethine pigments, and , dioxazine pigments, and at least one pigment selected from the group consisting of diketopyrrolopyrrole pigments, phthalocyanine pigments, and isoindoline pigments. More preferred. Additionally, black pigments can be used. As the black pigment, a pigment containing carbon black, a titanium atom, or a zirconium atom can be used.
• the average primary particle diameter of the pigment is preferably 1 nm to 200 nm.
• the lower limit is more preferably 5 nm or more, and even more preferably 10 nm or more.
• the upper limit is more preferably 180 nm or less, even more preferably 150 nm or less, and particularly preferably 100 nm or less.
• the primary particle diameter of a pigment can be calculated
• the average primary particle diameter in this specification is the arithmetic mean value of the primary particle diameters of 400 pigment primary particles.
• the primary particles of pigment refer to independent particles without agglomeration.
• the crystallite size determined from the half-width of the peak derived from any crystal plane in the X-ray diffraction spectrum when the CuK ⁇ ray of the pigment is used as the X-ray source is preferably 0.1 nm to 100 nm, and preferably 0.1 nm to 100 nm.
• the thickness is more preferably 5 nm to 50 nm, even more preferably 1 nm to 30 nm, and particularly preferably 5 nm to 25 nm.
• the green coloring agent examples include phthalocyanine compounds and squarylium compounds, with phthalocyanine compounds being preferred.
• the green coloring agent is a pigment.
• Specific examples of green colorants include C.I. I. Examples include green pigments such as Pigment Green 7, 10, 36, 37, 58, 59, 62, 63, 64, 65, and 66.
• compounds described in paragraphs 0143 to 0149 of International Publication No. 2022/085485, aluminum phthalocyanine compounds described in JP2020-070426A, diarylmethane described in Japanese Patent Publication No. 2020-504758, Compounds etc. can also be used.
• the green colorant is C. I. Pigment Green 7, 36, 58, 59, 62, 63 are preferred; I. Pigment Green 7, 36, 58, and 59 are more preferred.
• red colorants examples include diketopyrrolopyrrole compounds, anthraquinone compounds, azo compounds, naphthol compounds, azomethine compounds, xanthene compounds, quinacridone compounds, perylene compounds, thioindigo compounds, etc. It is preferably a compound, and more preferably a diketopyrrolopyrrole compound. Moreover, it is preferable that the red colorant is a pigment. Specific examples of red colorants include C.I. I.
• the compound described in paragraph 0034 of International Publication No. 2022/085485 can also be used as a red colorant.
• the red colorant Lumogen F Orange 240 (manufactured by BASF, red pigment, perylene pigment) can also be used.
• the red colorant is C. I. Pigment Red 122, 177, 179, 254, 255, 264, 269, 272, 291 are preferred; I. Pigment Red 254, 264, and 272 are more preferred.
• yellow colorants examples include azo compounds, azomethine compounds, isoindoline compounds, pteridine compounds, quinophthalone compounds, and perylene compounds.
• the yellow colorant is preferably a pigment, more preferably an azo pigment, an azomethine pigment, an isoindoline pigment, a pteridine pigment, a quinophthalone pigment, or a perylene pigment, and more preferably an azo pigment or an azomethine pigment.
• Specific examples of yellow colorants include C.I. I.
• a nickel azobarbiturate complex having the following structure can also be used as a yellow colorant.
• the yellow colorant is C. I. Pigment Yellow 117, 129, 138, 139, 150, and 185 are preferred.
• C. I. Pigment Orange 2 5, 13, 16, 17: 1, 31, 34, 36, 38, 43, 46, 48, 49, 51, 52, 55, 59, 60, 61, 62, 64, 71, 73, etc. orange pigments.
• C. I. Examples include purple pigments such as Pigment Violet 1, 19, 23, 27, 32, 37, 42, 60, and 61.
• C.I. I. Pigment Blue 1 2, 15, 15:1, 15:2, 15:3, 15:4, 15:6, 16, 22, 29, 60, 64, 66, 79, 80, 87, 88 etc. It will be done.
• an aluminum phthalocyanine compound having a phosphorus atom can also be used as a blue colorant. Specific examples include compounds described in paragraph numbers 0022 to 0030 of JP-A No. 2012-247591 and paragraph number 0047 of JP-A No. 2011-157478.
• Dyes can also be used as chromatic colorants. There are no particular restrictions on the dye, and known dyes can be used. For example, pyrazole azo series, anilinoazo series, triarylmethane series, anthraquinone series, anthrapyridone series, benzylidene series, oxonol series, pyrazolotriazole azo series, pyridone azo series, cyanine series, phenothiazine series, pyrrolopyrazole azomethine series, xanthene series, Examples include phthalocyanine-based, benzopyran-based, indigo-based, and pyrromethene-based dyes.
• Pigment multimers can also be used as chromatic colorants.
• the dye multimer is preferably a dye that is dissolved in an organic solvent. Further, the dye multimer may form particles. When the dye multimer is in the form of particles, it is usually used in a state of being dispersed in a solvent.
• the dye multimer in a particle state can be obtained, for example, by emulsion polymerization, and specific examples include the compound and manufacturing method described in JP-A No. 2015-214682.
• As the dye multimer a compound described in paragraph 0048 of International Publication No. 2022/085485 can also be used.
• Chromatic colorants include diarylmethane compounds described in Japanese Patent Publication No. 2020-504758, triarylmethane dye polymers described in Korean Patent Publication No. 10-2020-0028160, and triarylmethane dye polymers described in Japanese Patent Application Publication No. 2020-117638.
• a compound represented by formula 1 a compound represented by formula 1 described in Korean Publication Patent No. 10-2020-0069730, a compound represented by formula 1 described in Korean Publication Patent No.
• 10-2020-0069070 Compound, compound represented by formula 1 described in Korean Publication Patent No. 10-2020-0069067, compound represented by formula 1 described in Korean Publication Patent No. 10-2020-0069062, patent No. 6809649
• Isoindoline compounds aluminum phthalocyanine compounds described in International Publication No. 2022/024926, compounds described in JP2022-045895, and compounds described in International Publication No. 2022/050051 can be used.
• the chromatic colorant may be a rotaxane, and the dye skeleton may be used in the cyclic structure of the rotaxane, the rod-like structure, or both structures.
• Two or more chromatic colorants may be used in combination. Moreover, when using a combination of two or more types of chromatic colorants, black may be formed by a combination of two or more types of chromatic colorants.
• the black colorant is not particularly limited, and known ones can be used.
• examples of the inorganic black colorant include carbon black, titanium black, zirconium oxynitride, graphite, etc.
• Carbon black, titanium black, or zirconium oxynitride are preferred, and titanium black or zirconium oxynitride is more preferred.
• Titanium black is black particles containing titanium atoms, and lower titanium oxide and titanium oxynitride are preferable.
• the surface of titanium black can be modified as necessary for the purpose of improving dispersibility, suppressing agglomeration, and the like. For example, it is possible to coat the surface of titanium black with silicon oxide, titanium oxide, germanium oxide, aluminum oxide, magnesium oxide, or zirconium oxide.
• Color Index (C.I.) Pigment Black 1, 7 can also be used as the black colorant.
• the titanium black has a small primary particle size and an average primary particle size of each particle. Specifically, it is preferable that the average primary particle diameter is 10 to 45 nm.
• Titanium black can also be used as a dispersion. For example, there may be mentioned a dispersion containing titanium black particles and silica particles, in which the content ratio of Si atoms to Ti atoms in the dispersion is adjusted to a range of 0.20 to 0.50.
• JP-A-2012-169556 can be referred to, the contents of which are incorporated herein.
• examples of commercially available titanium blacks include Titanium Black 10S, 12S, 13R, 13M, 13MC, 13R-N, 13M-T (trade name: manufactured by Mitsubishi Materials Corporation), Tilac D ( Product name: Ako Kasei Co., Ltd.).
• examples of the organic black colorant include bisbenzofuranone compounds, azomethine compounds, perylene compounds, and azo compounds, with bisbenzofuranone compounds and perylene compounds being preferred.
• Examples of bisbenzofuranone compounds include those described in Japanese Translated Patent Publication No.
• the curable composition according to the present disclosure may contain only one type of colorant, or may contain two or more types of colorants. When two or more types are used, it is preferable that their total amount falls within the following range.
• the content of the colorant is preferably from 10% by mass to 75% by mass based on the total solid content of the curable composition, from the viewpoint of further exerting the effects of the present disclosure.
• the upper limit is more preferably 70% by mass or less, and even more preferably 65% by mass or less.
• the lower limit is more preferably 20% by mass or more, even more preferably 30% by mass or more, and particularly preferably 60% by mass or more.
• the curable composition according to the present disclosure includes a radically polymerizable compound.
• the radically polymerizable compound include compounds having an ethylenically unsaturated group.
• resin-type radically polymerizable compounds include resins containing repeating units having radically polymerizable groups.
• the weight average molecular weight (Mw) of the resin type polymerizable compound is preferably 2,000 to 2,000,000.
• the upper limit of the weight average molecular weight is more preferably 1,000,000 or less, and even more preferably 500,000 or less.
• the lower limit of the weight average molecular weight is more preferably 3,000 or more, and even more preferably 5,000 or more.
• the molecular weight of the monomer-type radically polymerizable compound (polymerizable monomer) is preferably less than 2,000, more preferably 1,500 or less.
• the lower limit of the molecular weight of the polymerizable monomer is preferably 100 or more, more preferably 200 or more.
• the compound having an ethylenically unsaturated group as a polymerizable monomer is preferably a 3- to 15-functional (meth)acrylate compound, more preferably a 3- to 6-functional (meth)acrylate compound.
• Specific examples include the compound described in paragraph 0128 of International Publication No. 2022/085485 and the compound described in JP 2017-194662, the contents of which are incorporated herein.
• the compound having an ethylenically unsaturated group may be a compound having an acid group such as a carboxy group, a sulfo group, a phosphoric acid group, a compound having a caprolactone structure, a compound having an alkyleneoxy group, or a compound having a fluorene skeleton. It may also be a compound.
• Examples of compounds having an ethylenically unsaturated group include UA-7200 (manufactured by Shin Nakamura Chemical Industry Co., Ltd.), DPHA-40H (manufactured by Nippon Kayaku Co., Ltd.), UA-306H, UA-306T, UA-306I, AH-600, T-600, AI-600, LINC-202UA (manufactured by Kyoeisha Chemical Co., Ltd.), 8UH-1006, 8UH-1012 (manufactured by Taisei Fine Chemical Co., Ltd.), Light Acrylate POB-A0 (manufactured by Kyoeisha Chemical Co., Ltd.) It is also preferable to use products such as those manufactured by Co., Ltd.
• the content of the radically polymerizable compound is preferably 0.1% by mass to 50% by mass based on the total solid content of the curable composition.
• the lower limit is more preferably 0.5% by mass or more, and even more preferably 1% by mass or more.
• the upper limit is more preferably 45% by mass or less, and even more preferably 40% by mass or less.
• only one type of radically polymerizable compound may be used, or two or more types may be used. When two or more types are used, it is preferable that their total amount falls within the above range.
• the curable composition according to the present disclosure further contains a resin.
• a resin can be used as the radically polymerizable compound. It is preferable to use a radically polymerizable compound that contains at least a resin.
• the resin is blended, for example, for dispersing pigments and the like in a curable composition, or for use as a binder.
• a resin used mainly for dispersing pigments and the like in a curable composition is also referred to as a dispersant.
• this use of the resin is just an example, and the resin can also be used for purposes other than this use.
• the resin having a radically polymerizable group also corresponds to a radically polymerizable compound.
• the curable composition according to the present disclosure further contains a resin other than the radically polymerizable compound.
• the weight average molecular weight of the resin is preferably 3,000 to 2,000,000.
• the upper limit is preferably 1,000,000 or less, more preferably 500,000 or less.
• the lower limit is preferably 4000 or more, more preferably 5000 or more.
• resins include (meth)acrylic resin, epoxy resin, ene thiol resin, polycarbonate resin, polyether resin, polyarylate resin, polysulfone resin, polyethersulfone resin, polyphenylene resin, polyarylene ether phosphine oxide resin, polyimide resin, Examples include polyamide resin, polyamideimide resin, polyolefin resin, cyclic olefin resin, polyester resin, styrene resin, vinyl acetate resin, polyvinyl alcohol resin, polyvinyl acetal resin, polyurethane resin, and polyurea resin. One type of these resins may be used alone, or two or more types may be used in combination.
• norbornene resin is preferable from the viewpoint of improving heat resistance.
• Commercially available norbornene resins include, for example, the ARTON series manufactured by JSR Corporation (eg, ARTON F4520).
• the resins include the resin described in the examples of International Publication No. 2016/088645, the resin described in JP 2017-057265, the resin described in JP 2017-032685, and the resin described in JP 2017-032685.
• a resin having a fluorene skeleton can also be preferably used.
• the description in US Patent Application Publication No. 2017/0102610 can be referred to, the contents of which are incorporated herein.
• examples of the resin include resins described in paragraphs 0199 to 0233 of JP2020-186373A, alkali-soluble resins described in JP2020-186325A, and Korean Patent Publication No. 10-2020-0078339.
• a copolymer containing an epoxy group and an acid group described in International Publication No. 2022/030445 can also be used.
• a resin having acid groups examples include a carboxy group, a phosphoric acid group, a sulfo group, and a phenolic hydroxy group. The number of these acid groups may be one, or two or more.
• a resin having an acid group can be used, for example, as an alkali-soluble resin.
• the acid value of the resin having acid groups is preferably 30 to 500 mgKOH/g.
• the lower limit is preferably 50 mgKOH/g or more, more preferably 70 mgKOH/g or more.
• the upper limit is preferably 400 mgKOH/g or less, more preferably 200 mgKOH/g or less, even more preferably 150 mgKOH/g or less, and most preferably 120 mgKOH/g or less.
• the resin it is also preferable to use a resin having a polymerizable group.
• the polymerizable group include an ethylenically unsaturated group and a cyclic ether group.
• the resin has at least one type of repeating unit (hereinafter also referred to as repeating unit Ep) selected from a repeating unit represented by formula (Ep-1) and a repeating unit represented by formula (Ep-2).
• a resin hereinafter also referred to as resin Ep
• the resin Ep may contain only one of the repeating units represented by the formula (Ep-1) and the repeating unit represented by the formula (Ep-2), -1) and a repeating unit represented by formula (Ep-2).
• the ratio of the repeating unit represented by formula (Ep-1) to the repeating unit represented by formula (Ep-2) is the molar ratio, which is the same as that represented by formula (Ep-1).
• repeating unit: repeating unit represented by formula (Ep-2) preferably 5:95 to 95:5, more preferably 10:90 to 90:10, 20:80 to 80 :20 is more preferable.
• L 1 represents a single bond or a divalent linking group
• R 1 represents a hydrogen atom or a substituent.
• substituent represented by R 1 include an alkyl group and an aryl group, and an alkyl group is preferable.
• the alkyl group preferably has 1 to 10 carbon atoms, more preferably 1 to 5 carbon atoms, and still more preferably 1 to 3 carbon atoms.
• R 1 is preferably a hydrogen atom or a methyl group.
• the divalent linking group represented by L 1 includes an alkylene group (preferably an alkylene group having 1 to 12 carbon atoms), an arylene group (preferably an arylene group having 6 to 20 carbon atoms), -NH-, -SO-, Examples thereof include -SO 2 -, -CO-, -O-, -COO-, -OCO-, -S-, and groups formed by combining two or more of these.
• the alkylene group may be linear, branched, or cyclic, and preferably linear or branched. Further, the alkylene group may have a substituent or may be unsubstituted. Examples of the substituent include a hydroxy group and an alkoxy group.
• the content of the repeating unit Ep in the resin Ep is preferably 1 mol% to 100 mol% of all repeating units in the resin Ep.
• the upper limit is more preferably 90 mol% or less, and even more preferably 80 mol% or less.
• the lower limit is more preferably 2 mol% or more, and even more preferably 3 mol% or more.
• the resin Ep may have other repeating units in addition to the above repeating unit Ep.
• Examples of other repeating units include repeating units having an acid group and repeating units having an ethylenically unsaturated group.
• Examples of the acid group include a phenolic hydroxy group, a carboxy group, a sulfo group, and a phosphoric acid group, with a phenolic hydroxy group or a carboxy group being preferred, and a carboxy group being more preferred.
• ethylenically unsaturated groups include vinyl groups, styrene groups, (meth)allyl groups, (meth)acryloyl groups, and the like.
• the content of the repeating unit having an acid group in the resin Ep is preferably 5 mol% to 85 mol% of the total repeating units of the resin Ep.
• the upper limit is more preferably 60 mol% or less, and even more preferably 40 mol% or less.
• the lower limit is more preferably 8 mol% or more, and even more preferably 10 mol% or more.
• the content of the repeating unit having an ethylenically unsaturated group in the resin Ep is 1 mol% to 65 mol% of the total repeating units of the resin Ep. It is preferable.
• the upper limit is more preferably 45 mol% or less, and even more preferably 30 mol% or less.
• the lower limit is more preferably 2 mol% or more, and even more preferably 3 mol% or more.
• the resin Ep further includes a repeating unit having an aromatic hydrocarbon ring.
• the aromatic hydrocarbon ring is preferably a benzene ring or a naphthalene ring, and preferably a benzene ring.
• the aromatic hydrocarbon ring may have a substituent. Examples of the substituent include an alkyl group.
• the content of the repeating unit having an aromatic hydrocarbon ring is 1 mol% of the total repeating units of the resin having a cyclic ether group. It is preferably 65 mol%.
• the upper limit is more preferably 45 mol% or less, and even more preferably 30 mol% or less.
• the lower limit is more preferably 2 mol% or more, and even more preferably 3 mol% or more.
• the repeating unit having an aromatic hydrocarbon ring include repeating units derived from monofunctional polymerizable compounds having an aromatic hydrocarbon ring such as vinyltoluene and benzyl (meth)acrylate.
• the resin it is also preferable to use a resin containing a repeating unit derived from a compound represented by formula (X).
• R 1 represents a hydrogen atom or a methyl group
• R 21 and R 22 each independently represent an alkylene group
• n represents an integer of 0 to 15.
• the number of carbon atoms in the alkylene group represented by R 21 and R 22 is preferably 1 to 10, more preferably 1 to 5, even more preferably 1 to 3, and especially 2 or 3. preferable.
• n represents an integer of 0 to 15, preferably an integer of 0 to 5, more preferably an integer of 0 to 4, even more preferably an integer of 0 to 3.
• Examples of the compound represented by formula (X) include ethylene oxide- or propylene oxide-modified (meth)acrylate of paracumylphenol.
• Commercially available products include Aronix M-110 (manufactured by Toagosei Co., Ltd.).
• the resin it is also preferable to use a resin having an aromatic carboxy group (hereinafter also referred to as resin Ac).
• the aromatic carboxy group may be included in the main chain of the repeating unit, or may be included in the side chain of the repeating unit.
• the aromatic carboxy group is preferably contained in the main chain of the repeating unit.
• an aromatic carboxy group refers to a group having a structure in which one or more carboxy groups are bonded to an aromatic ring.
• the number of carboxy groups bonded to the aromatic ring is preferably 1 to 4, more preferably 1 to 2.
• the resin Ac is preferably a resin containing at least one type of repeating unit selected from the repeating unit represented by formula (Ac-1) and the repeating unit represented by formula (Ac-2).
• Ar 1 represents a group containing an aromatic carboxy group
• L 1 represents -COO- or CONH-
• L 2 represents a divalent linking group
• Ar 10 represents a group containing an aromatic carboxy group
• L 11 represents -COO- or CONH-
• L 12 represents a trivalent linking group
• P 10 represents a polymer chain. represents.
• Examples of the group containing an aromatic carboxy group represented by Ar 1 in formula (Ac-1) include a structure derived from an aromatic tricarboxylic acid anhydride, a structure derived from an aromatic tetracarboxylic acid anhydride, and the like.
• Examples of the aromatic tricarboxylic anhydride and aromatic tetracarboxylic anhydride include compounds having the following structures.
• Q 1 is a single bond, -O-, -CO-, -COOCH 2 CH 2 OCO-, -SO 2 -, -C(CF 3 ) 2 -, represented by the following formula (Q-1). or a group represented by the following formula (Q-2).
• the aromatic carboxy group-containing group represented by Ar 1 may have a polymerizable group.
• the polymerizable group is preferably an ethylenically unsaturated group or a cyclic ether group, more preferably an ethylenically unsaturated group.
• Specific examples of the group containing an aromatic carboxy group represented by Ar 1 include a group represented by formula (Ar-11), a group represented by formula (Ar-12), and a group represented by formula (Ar-13). Examples include groups such as
• n1 represents an integer of 1 to 4, preferably 1 or 2, and more preferably 2.
• n2 represents an integer of 1 to 8, preferably an integer of 1 to 4, more preferably 1 or 2, and even more preferably 2.
• n3 and n4 each independently represent an integer of 0 to 4, preferably an integer of 0 to 2, more preferably 1 or 2, and preferably 1. More preferred. However, at least one of n3 and n4 is an integer of 1 or more.
• Q 1 is a single bond, -O-, -CO-, -COOCH 2 CH 2 OCO-, -SO 2 -, -C(CF 3 ) 2 -, the above formula (Q- Represents a group represented by 1) or a group represented by the above formula (Q-2).
• *1 represents the bonding position with L 1 .
• L 1 represents -COO- or CONH-, preferably -COO-.
• the divalent linking group represented by L 2 in formula (Ac-1) includes an alkylene group, an arylene group, -O-, -CO-, -COO-, -OCO-, -NH-, -S-, and these. Examples include groups combining two or more of the following.
• the alkylene group preferably has 1 to 30 carbon atoms, more preferably 1 to 20 carbon atoms, and still more preferably 1 to 15 carbon atoms.
• the alkylene group may be linear, branched, or cyclic.
• the number of carbon atoms in the arylene group is preferably 6 to 30, more preferably 6 to 20, and even more preferably 6 to 10.
• the alkylene group and arylene group may have a substituent.
• the divalent linking group represented by L 2 is preferably a group represented by -L 2a -O-.
• L 2a is an alkylene group; an arylene group; a group combining an alkylene group and an arylene group; at least one selected from an alkylene group and an arylene group, and -O-, -CO-, -COO-, -OCO-, Examples include a group combining at least one selected from -NH- and S-, and an alkylene group is preferred.
• the alkylene group preferably has 1 to 30 carbon atoms, more preferably 1 to 20 carbon atoms, and still more preferably 1 to 15 carbon atoms.
• the alkylene group may be linear, branched, or cyclic.
• the alkylene group and arylene group may have a substituent. Examples of the substituent include a hydroxy group.
• the aromatic carboxy group-containing group represented by Ar 10 in formula (Ac-2) has the same meaning as Ar 1 in formula (Ac-1), and its preferred embodiments are also the same.
• L 11 represents -COO- or CONH-, preferably -COO-.
• the trivalent linking group represented by L 12 includes a hydrocarbon group, -O-, -CO-, -COO-, -OCO-, -NH-, -S-, and these two groups. Examples include groups that combine more than one species.
• the hydrocarbon group include an aliphatic hydrocarbon group and an aromatic hydrocarbon group. The number of carbon atoms in the aliphatic hydrocarbon group is preferably 1 to 30, more preferably 1 to 20, and even more preferably 1 to 15.
• the aliphatic hydrocarbon group may be linear, branched, or cyclic.
• the aromatic hydrocarbon group preferably has 6 to 30 carbon atoms, more preferably 6 to 20 carbon atoms, and even more preferably 6 to 10 carbon atoms.
• the hydrocarbon group may have a substituent. Examples of the substituent include a hydroxy group.
• the trivalent linking group represented by L 12 is preferably a group represented by formula (L12-1), and more preferably a group represented by formula (L12-2).
• L 12b represents a trivalent linking group
• X 1 represents S
• *1 represents the bonding position with L 11 of formula (Ac-2)
• *2 represents the bonding position of formula (Ac-2). It represents the bonding position of Ac-2) with P10 .
• the trivalent linking group represented by L 12b is a hydrocarbon group; a hydrocarbon group, and at least one kind selected from -O-, -CO-, -COO-, -OCO-, -NH-, and -S-.
• a hydrocarbon group or a group consisting of a hydrocarbon group and -O- is preferable.
• L 12c represents a trivalent linking group
• X 1 represents S
• *1 represents the bonding position with L 11 of formula (Ac-2)
• *2 represents formula ( It represents the bonding position of Ac-2) with P10 .
• the trivalent linking group represented by L 12c is a hydrocarbon group; a hydrocarbon group, and at least one kind selected from -O-, -CO-, -COO-, -OCO-, -NH-, and -S-.
• a hydrocarbon group is preferable.
• P 10 represents a polymer chain.
• the polymer chain represented by P 10 preferably has at least one type of repeating unit selected from poly(meth)acrylic repeating units, polyether repeating units, polyester repeating units, and polyol repeating units.
• the weight average molecular weight of the polymer chain P 10 is preferably 500 to 20,000.
• the lower limit is more preferably 1,000 or more.
• the upper limit is more preferably 10,000 or less, even more preferably 5,000 or less, and particularly preferably 3,000 or less. If the weight average molecular weight of P 10 is within the above range, the pigment will have good dispersibility in the composition.
• the resin having an aromatic carboxy group is a resin having a repeating unit represented by formula (Ac-2), this resin is preferably used as a dispersant.
• the polymer chain represented by P 10 may contain a polymerizable group.
• examples of the polymerizable group include ethylenically unsaturated groups.
• the curable composition according to the present disclosure preferably contains a resin as a dispersant.
• the dispersant include acidic dispersants (acidic resins) and basic dispersants (basic resins).
• the acidic dispersant (acidic resin) refers to a resin in which the amount of acid groups is greater than the amount of basic groups.
• the acidic dispersant (acidic resin) is preferably a resin in which the amount of acid groups is 70 mol % or more when the total amount of acid groups and basic groups is 100 mol %.
• the acid group that the acidic dispersant (acidic resin) has is preferably a carboxy group.
• the acid value of the acidic dispersant (acidic resin) is preferably 10 mgKOH/g to 105 mgKOH/g.
• the basic dispersant (basic resin) refers to a resin in which the amount of basic groups is greater than the amount of acid groups.
• the basic dispersant (basic resin) is preferably a resin in which the amount of basic groups exceeds 50 mol% when the total amount of acid groups and basic groups is 100 mol%.
• the basic group that the basic dispersant has is preferably an amino group.
• the resin used as a dispersant is a graft polymer.
• the graft polymer the descriptions in paragraphs 0025 to 0094 of JP-A No. 2012-255128 can be referred to, the contents of which are incorporated herein.
• the resin is a graft polymer having a graft chain, and the graft chain includes at least one selected from the group consisting of a polyether chain, a polyester chain, and a polyacrylic chain.
• the weight average molecular weight of the graft chain is preferably 1,000 or more.
• the resin used as a dispersant is a polyimine-based dispersant containing a nitrogen atom in at least one of the main chain and the side chain.
• the polyimine dispersant has a main chain having a partial structure having a functional group with a pKa of 14 or less, a side chain having 40 to 10,000 atoms, and a basic nitrogen atom in at least one of the main chain and the side chain.
• the resin has The basic nitrogen atom is not particularly limited as long as it exhibits basicity.
• the description in paragraphs 0102 to 0166 of JP-A-2012-255128 can be referred to, and the contents thereof are incorporated herein.
• the resin used as the dispersant has a structure in which a plurality of polymer chains are bonded to the core portion.
• resins include dendrimers (including star-shaped polymers).
• specific examples of dendrimers include polymer compounds C-1 to C-31 described in paragraph numbers 0196 to 0209 of JP-A No. 2013-043962.
• the resin used as a dispersant is also preferably a resin containing a repeating unit having an ethylenically unsaturated group in its side chain.
• the content of repeating units having ethylenically unsaturated groups in their side chains is preferably 10 mol% or more, more preferably 10 mol% to 80 mol%, and 20 mol% of all repeating units in the resin. More preferably, it is 70 mol%.
• the resin having an oxetane group for example, resins described in International Publication No. 2021/182268 or International Publication No. 2021/187257 can be used.
• the resin used as the dispersant is preferably a resin containing an oxetane group in its side chain, and more preferably a resin containing a repeating unit having an oxetane group in its side chain.
• the resin containing an oxetane group in its side chain is preferably a graft polymer.
• Preferred examples of the resin containing an oxetane group in its side chain include those described in Examples below.
• the content of repeating units having an oxetane group in the side chain in the resin is preferably 10 mol% or more, more preferably 10 mol% to 80 mol%, and 20 mol% of all repeating units in the resin. % to 70 mol % is more preferable.
• resins described in JP 2018-087939, block copolymers (EB-1) to (EB-9) described in paragraph numbers 0219 to 0221 of Patent No. 6432077, Polyethyleneimine having a polyester side chain as described in International Publication No. 2016/104803, block copolymer as described in International Publication No. 2019/125940, block polymer having an acrylamide structural unit as described in JP-A No. 2020-066687 , a block polymer having an acrylamide structural unit described in JP-A-2020-066688, a dispersant described in International Publication No. 2016/104803, etc. can also be used.
• a polyamic acid type dispersion resin or a polyimide type dispersion resin can also be used.
• dispersants described in International Publication No. 2022/019253, International Publication No. 2022/019254, and International Publication No. 2022/019255 can also be used.
• Dispersants are also available as commercial products, and specific examples include the Disperbyk series manufactured by Byk Chemie (for example, Disperbyk-111, 161, 2001, etc.), Solsperse manufactured by Nippon Lubrizol Co., Ltd. series (for example, Solsperse 20000, 76500, etc.), Ajisperse series manufactured by Ajinomoto Fine Techno, Inc., and the like. Further, the product described in paragraph number 0129 of JP 2012-137564A and the product described in paragraph number 0235 of JP 2017-194662A can also be used as a dispersant.
• the content of the resin is preferably 1% by mass to 70% by mass based on the total solid content of the curable composition.
• the lower limit is more preferably 2% by mass or more, even more preferably 3% by mass or more, and particularly preferably 5% by mass or more.
• the upper limit is more preferably 65% by mass or less, and even more preferably 60% by mass or less.
• the content of the resin having acid groups is preferably 1% by mass to 70% by mass based on the total solid content of the curable composition.
• the lower limit is more preferably 2% by mass or more, even more preferably 3% by mass or more, and particularly preferably 5% by mass or more.
• the upper limit is more preferably 65% by mass or less, and even more preferably 60% by mass or less.
• the content of the alkali-soluble resin is preferably 1% by mass to 70% by mass based on the total solid content of the curable composition.
• the lower limit is more preferably 2% by mass or more, even more preferably 3% by mass or more, and particularly preferably 5% by mass or more.
• the upper limit is more preferably 65% by mass or less, and even more preferably 60% by mass or less.
• the content of the resin as a dispersant is 0.1% by mass to 30% by mass based on the total solid content of the curable composition. preferable.
• the upper limit is more preferably 25% by mass or less, and even more preferably 20% by mass or less.
• the lower limit is more preferably 0.5% by mass or more, and even more preferably 1% by mass or more.
• the content of the resin as a dispersant is preferably 1 part by mass to 100 parts by mass with respect to 100 parts by mass of the colorant.
• the upper limit is more preferably 80 parts by mass or less, even more preferably 70 parts by mass or less, and particularly preferably 60 parts by mass or less.
• the lower limit is more preferably 5 parts by mass or more, even more preferably 10 parts by mass or more, and particularly preferably 20 parts by mass or more.
• the curable composition according to the present disclosure may contain only one type of resin, or may contain two or more types of resin. When two or more types of resin are included, the total amount thereof is preferably within the above range.
• the curable composition according to the present disclosure preferably contains a solvent.
• the solvent include organic solvents.
• the type of solvent is basically not particularly limited as long as it satisfies the solubility of each component and the coatability of the composition.
• the organic solvent include ester solvents, ketone solvents, alcohol solvents, amide solvents, ether solvents, and hydrocarbon solvents.
• paragraph number 0223 of International Publication No. 2015/166779 can be referred to, the contents of which are incorporated herein.
• Ester solvents substituted with a cyclic alkyl group and ketone solvents substituted with a cyclic alkyl group can also be preferably used.
• organic solvents include polyethylene glycol monomethyl ether, dichloromethane, methyl 3-ethoxypropionate, ethyl 3-ethoxypropionate, ethyl cellosolve acetate, ethyl lactate, diethylene glycol dimethyl ether, butyl acetate, methyl 3-methoxypropionate, 2 -Heptanone, 2-pentanone, 3-pentanone, 4-heptanone, cyclohexanone, 2-methylcyclohexanone, 3-methylcyclohexanone, 4-methylcyclohexanone, cycloheptanone, cyclooctanone, cyclohexyl acetate, cyclopentanone, ethyl carbitol Acetate, butyl carbitol acetate, propylene glycol monomethyl ether, propylene glycol monomethyl ether acetate, 3-methoxy-N,N-dimethylpropanamide, 3-butoxy-N
• aromatic hydrocarbons benzene, toluene, xylene, ethylbenzene, etc.
• organic solvents for environmental reasons (for example, 50 mass ppm (parts) based on the total amount of organic solvents). per million), 10 mass ppm or less, and 1 mass ppm or less).
• an organic solvent with a low metal content it is preferable to use an organic solvent with a low metal content. It is preferable that the metal content of the organic solvent is, for example, 10 mass ppb (parts per billion) or less. If necessary, an organic solvent at a mass ppt (parts per trillion) level may be used, and such an organic solvent is provided by Toyo Gosei Co., Ltd. (Kagaku Kogyo Nippo, November 13, 2015). .
• Examples of methods for removing impurities such as metals from organic solvents include distillation (molecular distillation, thin film distillation, etc.) and filtration using a filter.
• the filter pore diameter of the filter used for filtration is preferably 10 ⁇ m or less, more preferably 5 ⁇ m or less, and even more preferably 3 ⁇ m or less.
• the material of the filter is preferably polytetrafluoroethylene, polyethylene, or nylon.
• the organic solvent may contain isomers (compounds with the same number of atoms but different structures). Moreover, only one type of isomer may be included, or multiple types may be included.
• the content of peroxide in the organic solvent is 0.8 mmol/L or less, and it is more preferable that the organic solvent contains substantially no peroxide.
• the content of the solvent in the curable composition is preferably 10% by mass to 95% by mass, more preferably 20% by mass to 90% by mass, and preferably 30% by mass to 90% by mass. More preferred.
• the curable composition according to the present disclosure preferably does not substantially contain environmentally regulated substances from the viewpoint of environmental regulations.
• "containing substantially no environmentally regulated substance” means that the content of the environmentally regulated substance in the curable composition is 50 mass ppm or less, and 30 mass ppm or less may be used. It is preferably 10 mass ppm or less, more preferably 1 mass ppm or less, and particularly preferably 1 mass ppm or less.
• environmentally controlled substances include benzene; alkylbenzenes such as toluene and xylene; and halogenated benzenes such as chlorobenzene.
• REACH Registration Evaluation Authorization and Restriction of CHemicals
• PRTR Policy Release and It is registered as an environmentally regulated substance under the Transfer Register Act
• VOC Volatile Organic Compounds
• VOC Volatile Organic Compounds
• the method is strictly regulated.
• These compounds may be used as a solvent when producing each component used in the curable composition, and may be mixed into the curable composition as a residual solvent. From the viewpoint of human safety and environmental considerations, it is preferable to reduce the amount of these substances as much as possible.
• methods for reducing environmentally controlled substances include a method of heating or reducing pressure in the system to raise the temperature above the boiling point of the environmentally controlled substance to distill off the environmentally controlled substances from the system.
• distillation methods can be used at the stage of raw materials, at the stage of products obtained by reacting raw materials (for example, resin solution or polyfunctional monomer solution after polymerization), or at the stage of curable compositions prepared by mixing these compounds. It is possible at any stage, such as a stage.
• the curable composition according to the present disclosure can contain a pigment derivative.
• Pigment derivatives are used, for example, as dispersion aids.
• Examples of pigment derivatives include compounds having a structure in which an acid group or a basic group is bonded to a pigment skeleton.
• the pigment skeletons constituting the pigment derivatives include quinoline pigment skeleton, benzimidazolone pigment skeleton, benzisoindole pigment skeleton, benzothiazole pigment skeleton, iminium pigment skeleton, squarylium pigment skeleton, croconium pigment skeleton, oxonol pigment skeleton, and pyrrolopyrrole pigment.
• diketopyrrolopyrrole dye skeleton azo dye skeleton, azomethine dye skeleton, phthalocyanine dye skeleton, naphthalocyanine dye skeleton, anthraquinone dye skeleton, quinacridone dye skeleton, dioxazine dye skeleton, perinone dye skeleton, perylene dye skeleton, thioindigo dye skeleton
• Examples include isoindoline dye skeleton, isoindolinone dye skeleton, quinophthalone dye skeleton, iminium dye skeleton, dithiol dye skeleton, triarylmethane dye skeleton, and pyrromethene dye skeleton.
• Examples of the acid group include a carboxyl group, a sulfo group, a phosphoric acid group, a boronic acid group, a carboxylic acid amide group, a sulfonic acid amide group, an imide acid group, and salts thereof.
• Atoms or atomic groups constituting the salt include alkali metal ions (Li + , Na + , K + , etc.), alkaline earth metal ions (Ca 2+ , Mg 2+ , etc.), ammonium ions, imidazolium ions, pyridinium ions, Examples include phosphonium ions.
• As the carboxylic acid amide group a group represented by -NHCOR X1 is preferable.
• sulfonic acid amide group a group represented by -NHSO 2 R X2 is preferable.
• the imide acid group is preferably a group represented by -SO 2 NHSO 2 R X3 , -CONHSO 2 R X4 , -CONHCOR X5 or SO 2 NHCOR X6 , and -SO 2 NHSO 2 R X3 is more preferred.
• R X1 to R X6 each independently represent an alkyl group or an aryl group.
• the alkyl group and aryl group represented by R X1 to R X6 may have a substituent.
• the substituent is preferably a halogen atom, more preferably a fluorine atom.
• Examples of the basic group include an amino group, a pyridinyl group and its salts, an ammonium group salt, and a phthalimidomethyl group.
• Examples of atoms or atomic groups constituting the salt include hydroxide ions, halogen ions, carboxylate ions, sulfonate ions, and phenoxide ions.
• a pigment derivative having excellent visible transparency (hereinafter also referred to as a transparent pigment derivative) can also be used.
• the maximum value ( ⁇ max) of the molar extinction coefficient in the wavelength range of 400 nm to 700 nm of the transparent pigment derivative is preferably 3,000 L ⁇ mol ⁇ 1 ⁇ cm ⁇ 1 or less, and 1,000 L ⁇ mol ⁇ 1 ⁇ cm ⁇ It is more preferably 1 or less, and even more preferably 100 L ⁇ mol ⁇ 1 ⁇ cm ⁇ 1 or less.
• the lower limit of ⁇ max is, for example, 1 L ⁇ mol ⁇ 1 ⁇ cm ⁇ 1 or more, and may be 10 L ⁇ mol ⁇ 1 ⁇ cm ⁇ 1 or more.
• pigment derivatives include the compound described in paragraph 0124 of International Publication No. 2022/085485, the benzimidazolone compound or salt thereof described in JP-A-2018-168244, and the general formula of Patent No. 6996282.
• examples include compounds having an isoindoline skeleton as described in (1).
• the content of the pigment derivative is preferably 1 part by mass to 30 parts by mass, more preferably 3 parts by mass to 20 parts by mass, per 100 parts by mass of the colorant. Further, the total content of the pigment derivative and the colorant is preferably 35% by mass or more, more preferably 40% by mass or more, and still more preferably 45% by mass or more, based on the total solid content of the curable composition. It is preferably 50% by mass or more, particularly preferably 50% by mass or more. The upper limit is preferably 70% by mass or less, more preferably 65% by mass or less. Only one type of pigment derivative may be used, or two or more types may be used in combination.
• the curable composition according to the present disclosure preferably further contains a chain transfer agent from the viewpoint of adhesion.
• chain transfer agents include thiol compounds, thiocarbonylthio compounds, aromatic ⁇ -methylalkenyl dimers, etc. Thiol compounds are used because the line width of the pattern can be easily adjusted even when incorporated in small amounts. is preferred. Further, the chain transfer agent is preferably a compound with little coloring.
• the thiol compound is a compound having one or more thiol groups, preferably a compound having two or more thiol groups.
• the upper limit of the number of thiol groups contained in the thiol compound is preferably 20 or less, more preferably 15 or less, even more preferably 10 or less, particularly preferably 8 or less, and most preferably 6 or less.
• the lower limit of the number of thiol groups contained in the thiol compound is preferably 3 or more. From the viewpoint of adhesion, the thiol compound is particularly preferably a compound having four thiol groups.
• the thiol compound is a compound derived from a polyfunctional alcohol.
• the thiol compound is preferably a compound represented by the following formula (SH-1).
• L 1 - (SH) n formula (SH-1) In the formula, SH represents a thiol group, L 1 represents an n-valent group, and n represents an integer of 1 or more.
• the n-valent group represented by L 1 includes a hydrocarbon group, a heterocyclic group, -O-, -S-, -NR-, -CO-, -COO-, -OCO- , -SO 2 - or a combination thereof.
• R represents a hydrogen atom, an alkyl group or an aryl group, and preferably a hydrogen atom.
• the hydrocarbon group may be an aliphatic hydrocarbon group or an aromatic hydrocarbon group. Further, the aliphatic hydrocarbon group may be cyclic or acyclic. Further, the aliphatic hydrocarbon group may be a saturated aliphatic hydrocarbon group or an unsaturated aliphatic hydrocarbon group.
• the hydrocarbon group may have a substituent or not. Further, the cyclic aliphatic hydrocarbon group and the aromatic hydrocarbon group may be monocyclic or fused rings.
• the heterocyclic group may be a single ring or a condensed ring. The heterocyclic group is preferably a 5-membered ring or a 6-membered ring.
• the heterocyclic group may be an aliphatic heterocyclic group or an aromatic heterocyclic group. Further, examples of the heteroatom constituting the heterocyclic group include a nitrogen atom, an oxygen atom, a sulfur atom, and the like.
• the number of carbon atoms constituting L 1 is preferably 3 to 100, more preferably 6 to 50.
• n represents an integer of 1 or more.
• the upper limit of n is preferably 20 or less, more preferably 15 or less, even more preferably 10 or less, particularly preferably 8 or less, and most preferably 6 or less.
• the lower limit of n is preferably 2 or more, more preferably 3 or more. It is particularly preferred that n is 4.
• thiol compounds include compounds with the following structure.
• commercially available thiol compounds include PEMP (manufactured by SC Organic Chemical Co., Ltd., thiol compound), Sancella M (manufactured by Sanshin Kagaku Kogyo Co., Ltd., thiol compound), Karenz MT BD1 (manufactured by Showa Denko K.K., and thiol compounds).
• dithioester compounds compounds represented by the following formula (SC-2)
• trithiocarbonate compounds compounds represented by the following formula (SC-3)
• dithiocarbamate compounds compounds represented by the following formula (SC-3)
• dithiocarbamate compounds compounds represented by the following formula (SC-3)
• Examples include compounds represented by the following formula (SC-4)), xanthate compounds (compounds represented by the following formula (SC-5)), and the like.
• Z 1 to Z 11 each independently represent a substituent.
• one or more of the hydrogen atoms bonded to a carbon atom may be substituted with a cyano group, a carboxy group, or the like.
• the number of carbon atoms in the alkyl group is preferably 1 to 30, more preferably 1 to 15, even more preferably 1 to 8.
• the alkyl group may be linear, branched, or cyclic, and preferably linear or branched.
• the number of carbon atoms in the aryl group is preferably 6 to 30, more preferably 6 to 20, and even more preferably 6 to 12.
• the heteroaryl group is preferably a monocyclic heteroaryl group or a fused ring heteroaryl group having 2 to 8 fused rings, and more preferably a monocyclic heteroaryl group or a fused ring heteroaryl group having 2 to 4 fused rings. preferable.
• the number of heteroatoms constituting the ring of the heteroaryl group is preferably 1 to 3.
• the heteroatom constituting the ring of the heteroaryl group is preferably a nitrogen atom, an oxygen atom or a sulfur atom.
• the heteroaryl group preferably has a 5-membered ring or a 6-membered ring.
• the number of carbon atoms constituting the ring of the heteroaryl group is preferably 3 to 30, more preferably 3 to 18, even more preferably 3 to 12.
• bis(thiocarbonyl) disulfide compounds include tetraethylthiuram disulfide, tetramethylthiuram disulfide, bis(n-octylmercapto-thiocarbonyl) disulfide, bis(n-dodecylmercapto-thiocarbonyl) disulfide, and bis(benzylmercapto).
• dithioester compounds include 2-phenyl-2-propylbenzothioate, 4-cyano-4-(phenylthiocarbonylthio)pentanoic acid, 2-cyano-2-propylbenzodithioate, and the like.
• trithiocarbonate compounds include S-(2-cyano-2-propyl)-S-dodecyl trithiocarbonate, 4-cyano-4-[(dodecylsulfanyl-thiocarbonyl)sulfanyl]pentanoic acid, cyano Examples include methyldodecyltrithiocarbonate, 2-(dodecylthiocarbonothiolthio)-2-methylpropionic acid, and the like.
• dithiocarbamate compounds include cyanomethylmethyl(phenyl)carbamodithioate, cyanomethyldiphenylcarbamodithioate, and the like.
• xanthate compounds include xanthate esters and the like.
• ⁇ -methylalkenyl dimer examples include 2,4-diphenyl-4-methyl-1-pentene.
• trithiocarbonate compounds such as those used as RAFT agents in RAFT (Reversible Addition-Fragmentation Chain Transfer) polymerization, which is a type of living polymerization, can also be preferably used.
• the molecular weight of the chain transfer agent is preferably 200 or more for reasons such as being able to suppress equipment contamination due to sublimation.
• the upper limit is preferably 1,000 or less, more preferably 800 or less, and even more preferably 600 or less, since the SH valence per unit mass can be increased.
• the content of the chain transfer agent is preferably 0.01% to 10% by mass, and preferably 0.01% to 5% by mass, based on the total solid content of the curable composition. It is more preferable that the amount is 0.05% by mass to 1% by mass. Only one type of chain transfer agent may be used, or two or more types may be used in combination.
• the curable composition according to the present disclosure can also contain polyalkyleneimine.
• Polyalkyleneimines are used, for example, as dispersion aids for pigments.
• a dispersion aid is a material for improving the dispersibility of pigments in a curable composition.
• Polyalkyleneimine is a polymer obtained by ring-opening polymerization of alkyleneimine, and is a polymer having at least a secondary amino group.
• the polyalkyleneimine may contain a primary amino group or a tertiary amino group in addition to the secondary amino group.
• the polyalkyleneimine is preferably a polymer having a branched structure containing a primary amino group, a secondary amino group, and a tertiary amino group, respectively.
• the alkylene imine preferably has 2 to 6 carbon atoms, more preferably 2 to 4 carbon atoms, even more preferably 2 or 3 carbon atoms, and particularly preferably 2 carbon atoms.
• the molecular weight of the polyalkylene imine is preferably 200 or more, more preferably 250 or more.
• the upper limit is preferably 100,000 or less, more preferably 50,000 or less, even more preferably 10,000 or less, and particularly preferably 2,000 or less.
• the molecular weight of the polyalkylene imine if the molecular weight can be calculated from the structural formula, the molecular weight of the polyalkylene imine is the value calculated from the structural formula.
• the molecular weight of the polyalkyleneimine cannot be calculated from the structural formula or is difficult to calculate, the value of the number average molecular weight measured by the boiling point elevation method is used.
• the value of the number average molecular weight measured by the viscosity method is used. If the viscosity method cannot be used or it is difficult to measure, the number average molecular weight in terms of polystyrene measured by GPC (gel permeation chromatography) is used.
• the amine value of the polyalkyleneimine is preferably 5 mmol/g or more, more preferably 10 mmol/g or more, and even more preferably 15 mmol/g or more.
• alkyleneimine examples include ethyleneimine, propyleneimine, 1,2-butyleneimine, 2,3-butyleneimine, etc. Ethyleneimine or propyleneimine is preferable, and ethyleneimine is more preferable. preferable. It is particularly preferred that the polyalkyleneimine is polyethyleneimine. Further, the polyethyleneimine preferably contains 10 mol% or more, more preferably 20 mol% or more of primary amino groups based on the total of primary amino groups, secondary amino groups, and tertiary amino groups. , more preferably 30 mol% or more.
• Commercial products of polyethyleneimine include Epomin SP-003, SP-006, SP-012, SP-018, SP-200, and P-1000 (all manufactured by Nippon Shokubai Co., Ltd.).
• the content of polyalkyleneimine in the total solid content of the curable composition is preferably 0.1% by mass to 5% by mass.
• the lower limit is more preferably 0.2% by mass or more, even more preferably 0.5% by mass or more, and particularly preferably 1% by mass or more.
• the upper limit is more preferably 4.5% by mass or less, even more preferably 4% by mass or less, and particularly preferably 3% by mass or less.
• the content of polyalkyleneimine is preferably 0.5 parts by weight to 20 parts by weight based on 100 parts by weight of the pigment.
• the lower limit is more preferably 0.6 parts by mass or more, even more preferably 1 part by mass or more, and particularly preferably 2 parts by mass or more.
• the upper limit is more preferably 10 parts by mass or less, and even more preferably 8 parts by mass or less. Only one type of polyalkylene imine may be used, or two or more types may be used. When two or more types are used, the total amount thereof is preferably within the above range.
• the curable composition according to the present disclosure can contain a curing accelerator.
• the curing accelerator include thiol compounds, methylol compounds, amine compounds, phosphonium salt compounds, amidine salt compounds, amide compounds, base generators, isocyanate compounds, alkoxysilane compounds, onium salt compounds, and the like.
• a specific example of the curing accelerator a compound described in paragraph 0164 of International Publication No. 2022/085485 can also be used.
• the content of the curing accelerator in the total solid content of the curable composition is preferably 0.3% by mass to 8.9% by mass, more preferably 0.8% by mass to 6.4% by mass. preferable.
• the curable composition according to the present disclosure can contain an infrared absorber.
• the wavelength of light transmitted through the film obtained by containing an infrared absorber in the curable composition is set to a longer wavelength. It can be shifted to the side.
• the infrared absorber is preferably a compound having a maximum absorption wavelength on the longer wavelength side than the wavelength of 700 nm.
• the infrared absorber is preferably a compound having a maximum absorption wavelength in a range of more than 700 nm and less than 1800 nm.
• the ratio A 1 /A 2 between the absorbance A 1 at a wavelength of 500 nm and the absorbance A 2 at the maximum absorption wavelength of the infrared absorbent is preferably 0.08 or less, more preferably 0.04 or less. .
• Infrared absorbers include pyrrolopyrrole compounds, cyanine compounds, squarylium compounds, phthalocyanine compounds, naphthalocyanine compounds, quaterylene compounds, merocyanine compounds, croconium compounds, oxonol compounds, iminium compounds, dithiol compounds, triarylmethane compounds, pyrromethene compounds, and azomethine. compounds, anthraquinone compounds, dibenzofuranone compounds, dithiolene metal complexes, metal oxides, metal borides, and the like.
• the compounds described in paragraphs 0114 to 0121 of WO 2022/065215, the compounds described in paragraphs 0144 to 0146 of WO 2021/049441, and the compounds described in JP 2021-195515 Croconic acid compounds, near-infrared absorbing dyes described in JP2022-022070A, croconium compounds described in International Publication No. 2019/021767, and the like can also be used.
• the content of the infrared absorber in the total solid content of the curable composition is preferably 1% by mass to 40% by mass.
• the lower limit is more preferably 2% by mass or more, even more preferably 5% by mass or more, and particularly preferably 10% by mass or more.
• the upper limit is more preferably 30% by mass or less, and even more preferably 25% by mass or less.
• the curable composition according to the present disclosure may contain only one type of infrared absorber, or may contain two or more types of infrared absorbers. When two or more types of infrared absorbers are included, the total amount thereof is preferably within the above range.
• the curable composition according to the present disclosure can contain an ultraviolet absorber.
• the ultraviolet absorber include conjugated diene compounds, aminodiene compounds, salicylate compounds, benzophenone compounds, benzotriazole compounds, acrylonitrile compounds, hydroxyphenyltriazine compounds, indole compounds, and triazine compounds.
• a compound described in paragraph 0179 of International Publication No. 2022/085485 can also be used.
• the ultraviolet absorber the reactive triazine ultraviolet absorber described in JP-A No. 2021-178918 and the ultraviolet absorber described in JP-A No. 2022-007884 can be used.
• the content of the ultraviolet absorber in the total solid content of the curable composition is preferably 0.01% by mass to 10% by mass, more preferably 0.01% by mass to 5% by mass. Only one type of ultraviolet absorber may be used, or two or more types may be used. When two or more types are used, it is preferable that their total amount falls within the above range.
• the curable composition according to the present disclosure can contain a polymerization inhibitor.
• Polymerization inhibitors include hydroquinone, p-methoxyphenol, di-tert-butyl-p-cresol, pyrogallol, tert-butylcatechol, benzoquinone, 4,4'-thiobis(3-methyl-6-tert-butylphenol), Examples include 2,2'-methylenebis(4-methyl-6-t-butylphenol) and N-nitrosophenylhydroxyamine salts (ammonium salts, cerous salts, etc.). Among them, p-methoxyphenol is preferred.
• the content of the polymerization inhibitor in the total solid content of the curable composition is preferably 0.0001% by mass to 5% by mass.
• the number of polymerization inhibitors may be one, or two or more. In the case of two or more types, it is preferable that their total amount falls within the above range.
• the curable composition according to the present disclosure can contain a silane coupling agent.
• the silane coupling agent refers to a silane compound having a hydrolyzable group and other functional groups.
• the term "hydrolyzable group" refers to a substituent that is directly bonded to a silicon atom and can form a siloxane bond through at least one of a hydrolysis reaction and a condensation reaction. Examples of the hydrolyzable group include a halogen atom, an alkoxy group, an acyloxy group, and an alkoxy group is preferred. That is, the silane coupling agent is preferably a compound having an alkoxysilyl group.
• Examples of functional groups other than hydrolyzable groups include vinyl groups, (meth)allyl groups, (meth)acryloyl groups, mercapto groups, epoxy groups, oxetanyl groups, amino groups, ureido groups, sulfide groups, and isocyanate groups. , phenyl group, etc., and amino group, (meth)acryloyl group and epoxy group are preferable.
• the silane coupling agent a compound described in paragraph 0177 of International Publication No. 2022/085485 can also be used.
• the content of the silane coupling agent in the total solid content of the curable composition is preferably 0.01% by mass to 15.0% by mass, and 0.05% by mass to 10.0% by mass. is more preferable. Only one type of silane coupling agent may be used, or two or more types may be used. In the case of two or more types, it is preferable that their total amount falls within the above range.
• the curable composition according to the present disclosure can contain a surfactant.
• a surfactant various surfactants such as fluorine surfactants, nonionic surfactants, cationic surfactants, anionic surfactants, and silicone surfactants can be used.
• the surfactant is preferably a silicone surfactant or a fluorine surfactant.
• the fluorine content in the fluorine-based surfactant is preferably 3% by mass to 40% by mass, more preferably 5% by mass to 30% by mass, and particularly preferably 7% by mass to 25% by mass.
• a fluorine-based surfactant having a fluorine content within this range is effective in terms of uniformity of coating film thickness and liquid saving, and has good solubility in a curable composition.
• fluorine-based surfactant compounds described in paragraphs 0167 to 0173 of International Publication No. 2022/085485, fluorine-containing copolymers described in JP-A No. 2022-000494, etc. can also be used.
• nonionic surfactant compounds described in paragraph 0174 of International Publication No. 2022/085485 can also be used.
• silicone surfactants examples include DOWSIL SH8400, SH8400 FLUID, FZ-2122, 67 Additive, 74 Additive, M Additive, SF 8419 OIL (manufactured by Dow Toray Industries, Inc.), and TSF- 4300, TSF-4445, TSF-4460, TSF-4452 (manufactured by Momentive Performance Materials), KP-341, KF-6000, KF-6001, KF-6002, KF-6003 (manufactured by Shin-Etsu Chemical Co., Ltd.) , BYK-307, BYK-322, BYK-323, BYK-330, BYK-333, BYK-3760, BYK-UV3510 (manufactured by BYK Chemie), and the like.
• the content of the surfactant in the total solid content of the curable composition is preferably 0.001% by mass to 5.0% by mass, and preferably 0.005% by mass to 3.0% by mass. More preferred.
• the number of surfactants may be one, or two or more. In the case of two or more types, it is preferable that their total amount falls within the above range.
• the curable composition according to the present disclosure can contain an antioxidant.
• antioxidants include phenol compounds, phosphite compounds, thioether compounds, and the like.
• the phenol compound any phenol compound known as a phenolic antioxidant can be used.
• Preferred phenol compounds include hindered phenol compounds.
• a compound having a substituent at a site adjacent to the phenolic hydroxy group (ortho position) is preferred.
• the above-mentioned substituents are preferably substituted or unsubstituted alkyl groups having 1 to 22 carbon atoms.
• the antioxidant a compound having a phenol group and a phosphorous acid ester group in the same molecule is also preferable.
• phosphorus-based antioxidants can also be suitably used.
• a phosphorus antioxidant tris[2-[[2,4,8,10-tetrakis(1,1-dimethylethyl)dibenzo[d,f][1,3,2]dioxaphosphepine-6 -yl]oxy]ethyl]amine, tris[2-[(4,6,9,11-tetra-tert-butyldibenzo[d,f][1,3,2]dioxaphosphepin-2-yl )oxy]ethyl]amine, ethylbis(2,4-di-tert-butyl-6-methylphenyl) phosphite, and the like.
• antioxidants include, for example, Adekastab AO-20, Adekastab AO-30, Adekastab AO-40, Adekastab AO-50, Adekastab AO-50F, Adekastab AO-60, Adekastab AO-60G, Adekastab AO-80. , ADEKA STAB AO-330 (manufactured by ADEKA Co., Ltd.).
• antioxidants include compounds described in paragraph numbers 0023 to 0048 of Patent No. 6268967, compounds described in International Publication No. 2017/006600, compounds described in International Publication No. 2017/164024, Compounds described in Korean Patent Publication No. 10-2019-0059371 can also be used.
• the content of the antioxidant in the total solid content of the curable composition is preferably 0.01% by mass to 20% by mass, more preferably 0.3% by mass to 15% by mass. Only one type of antioxidant may be used, or two or more types may be used. When two or more types are used, it is preferable that their total amount falls within the above range.
• the curable composition according to the present disclosure may contain sensitizers, curing accelerators, fillers, thermosetting accelerators, plasticizers, and other auxiliary agents (e.g., conductive particles, antifoaming agents, hardening agents, etc.) as necessary. (fuel agent, leveling agent, peeling accelerator, fragrance, surface tension adjusting agent, etc.) may also be included. By appropriately containing these components, properties such as film physical properties can be adjusted. These components include the compound described in paragraph 0182 of International Publication No. 2022/085485, the xanthene-type epoxy resin described in JP-A No. 2021-195421, the xanthene-type epoxy resin described in JP-A No. 2021-195422, etc. You can also use
• the curable composition according to the present disclosure may contain a metal oxide in order to adjust the refractive index of the resulting film.
• metal oxides include TiO 2 , ZrO 2 , Al 2 O 3 , and SiO 2 .
• the primary particle diameter of the metal oxide is preferably 1 nm to 100 nm, more preferably 3 nm to 70 nm, even more preferably 5 nm to 50 nm.
• the metal oxide may have a core-shell structure. Further, in this case, the core portion may be hollow.
• the curable composition according to the present disclosure may include a light resistance improver.
• a light resistance improver a compound described in paragraph 0183 of International Publication No. 2022/085485 can also be used.
• the curable composition according to the present disclosure does not substantially contain terephthalic acid ester.
• substantially not containing means that the content of terephthalic acid ester is 1000 mass ppb or less in the total amount of the curable composition, and more preferably 100 mass ppb or less. , is particularly preferably zero.
• perfluoroalkyl sulfonic acids and their salts may be regulated.
• perfluoroalkylsulfonic acid particularly perfluoroalkylsulfonic acid whose perfluoroalkyl group has 6 to 8 carbon atoms
• the content of perfluoroalkylcarboxylic acid (particularly perfluoroalkylcarboxylic acid whose perfluoroalkyl group has 6 to 8 carbon atoms) and its salts is 0.01 ppb to 0.01 ppb based on the total solid content of the curable composition.
• the curable composition according to the present disclosure may be substantially free of perfluoroalkylsulfonic acid and its salt, and perfluoroalkylcarboxylic acid and its salt.
• a compound that can be substituted for perfluoroalkylsulfonic acid and its salt and a compound that can be substituted for perfluoroalkylcarboxylic acid and its salt, perfluoroalkylsulfonic acid and its salt, and perfluoroalkylcarboxylic acid and a curable composition substantially free of salts thereof.
• Compounds that can be substituted for regulated compounds include, for example, compounds that are excluded from regulated targets due to differences in the number of carbon atoms in perfluoroalkyl groups. However, the above content does not preclude the use of perfluoroalkylsulfonic acids and salts thereof, and perfluoroalkylcarboxylic acids and salts thereof.
• Curable compositions according to the present disclosure may include perfluoroalkyl sulfonic acids and salts thereof, and perfluoroalkyl carboxylic acids and salts thereof, to the maximum extent permitted.
• the water content of the curable composition according to the present disclosure is preferably 3% by mass or less, more preferably 0.01% by mass to 1.5% by mass, and 0.1% to 1.0% by mass. It is more preferable that the range is within the range.
• the water content can be measured by the Karl Fischer method.
• the curable composition according to the present disclosure can be used by adjusting the viscosity for the purpose of adjusting the film surface condition (flatness, etc.), adjusting the film thickness, etc.
• the value of viscosity can be appropriately selected as required, but for example, at 25° C., 0.3 mPa ⁇ s to 50 mPa ⁇ s is preferable, and 0.5 mPa ⁇ s to 20 mPa ⁇ s is more preferable.
• the viscosity can be measured using, for example, a cone plate type viscometer with the temperature adjusted to 25°C.
• the amount of chloride ions in the curable composition is preferably 10,000 ppm or less, and 1000 ppm or less, from the viewpoint of environmental friendliness, suppression of foreign matter generation, suppression of equipment contamination, etc. It is more preferable that In order to keep the chloride ions in the curable composition within the above range, it is necessary to use raw materials with a low chloride ion content, and to remove chloride ions by washing with water, using ion exchange resins, filter filtration, etc. Can be mentioned. Known methods can be used to measure chloride ions, such as ion chromatography and combustion ion chromatography.
• the container for storing the curable composition is not particularly limited, and any known container can be used. Moreover, the container described in paragraph 0187 of International Publication No. 2022/085485 can also be used as the storage container.
• a curable composition according to the present disclosure can be prepared by mixing the aforementioned components.
• the curable composition may be prepared by dissolving and/or dispersing all components in a solvent at the same time, or, if necessary, each component may be appropriately dissolved or dispersed in two or more solutions.
• a curable composition may be prepared by preparing a liquid and mixing these at the time of use (at the time of application).
• the preparation of the curable composition includes a process of dispersing the pigment.
• mechanical forces used for dispersing pigments include compression, squeezing, impact, shearing, cavitation, and the like.
• Specific examples of these processes include bead mills, sand mills, roll mills, ball mills, paint shakers, microfluidizers, high speed impellers, sand grinders, flow jet mixers, high pressure wet atomization, ultrasonic dispersion, and the like.
• the particles may be made finer in a salt milling step.
• the beads used for dispersion can be zirconia, agate, quartz, titania, tungsten carbide, silicon nitride, alumina, stainless steel, glass, or combinations thereof.
• an inorganic compound having a Mohs hardness of 2 or more can be used.
• the composition may contain 1 to 10,000 ppm of the beads.
• the cured product according to the present disclosure is a cured product obtained by curing the curable composition according to the present disclosure.
• the film according to the present disclosure is a film obtained from the curable composition according to the present disclosure, and is preferably a film obtained by curing the curable composition according to the present disclosure.
• the film according to the present disclosure can be used for optical filters such as color filters and infrared transmission filters. Specifically, it can be preferably used as a colored pixel of a color filter. Examples of colored pixels include red pixels, green pixels, blue pixels, magenta pixels, cyan pixels, yellow pixels, etc., preferably green pixels and blue pixels, and more preferably green pixels.
• the thickness of the film according to the present disclosure can be adjusted as appropriate depending on the purpose, but is preferably 0.1 ⁇ m to 20 ⁇ m.
• the upper limit of the film thickness is more preferably 10 ⁇ m or less, even more preferably 5 ⁇ m or less, particularly preferably 3 ⁇ m or less, and most preferably 1.5 ⁇ m or less.
• the lower limit of the film thickness is more preferably 0.2 ⁇ m or more, and even more preferably 0.3 ⁇ m or more.
• the method for producing a cured product according to the present disclosure and the method for producing a film according to the present disclosure are not particularly limited, but may include a step of irradiating the curable composition according to the present disclosure with light having a wavelength of 150 nm to 300 nm. is preferred.
• Examples of light with a wavelength of 150 nm to 300 nm include KrF rays (wavelength 248 nm) and ArF rays (wavelength 193 nm).
• the light having a wavelength of 150 nm to 300 nm is preferably excimer laser light.
• the shape of the obtained cured product is not particularly limited, it is preferably film-like.
• the film according to the present disclosure can be manufactured through a step of applying the curable composition according to the present disclosure to a support.
• the film manufacturing method preferably further includes a step of forming a pattern (pixel). Examples of methods for forming patterns (pixels) include photolithography and dry etching, with photolithography being preferred.
• Pattern formation by the photolithography method includes a step of forming a curable composition layer on a support using the curable composition according to the present disclosure, a step of exposing the curable composition layer to light in a pattern, and a step of forming a curable composition layer on a support using a curable composition according to the present disclosure. It is preferable to include a step of developing and removing an unexposed portion of the composition layer to form a pattern (pixel). If necessary, a step of baking the curable composition layer (pre-bake step) and a step of baking the developed pattern (pixel) (post-bake step) may be provided.
• a curable composition layer is formed on a support using the curable composition according to the present disclosure.
• the support is not particularly limited and can be appropriately selected depending on the application.
• a glass substrate, a silicon substrate, etc. may be mentioned, and a silicon substrate is preferable.
• a charge coupled device (CCD), a complementary metal oxide semiconductor (CMOS), a transparent conductive film, etc. may be formed on the silicon substrate.
• CMOS complementary metal oxide semiconductor
• a black matrix that isolates each pixel may be formed on the silicon substrate.
• the silicon substrate may be provided with a base layer for improving adhesion with the upper layer, preventing substance diffusion, or flattening the substrate surface.
• the base layer may be formed using a composition obtained by removing the colorant from the curable composition described herein, or a composition containing the resin, polymerizable compound, surfactant, etc. described herein. Good too.
• the surface contact angle of the underlayer is preferably 20° to 70° when measured with diiodomethane. Further, the surface contact angle of the underlayer is preferably 30° to 80° when measured with water.
• a known method can be used to apply the curable composition.
• the method described in paragraph 0207 of International Publication No. 2022/085485 can also be used.
• the curable composition layer formed on the support may be dried (prebaked). If the film is manufactured by a low-temperature process, prebaking may not be performed.
• the prebaking temperature is preferably 150°C or lower, more preferably 120°C or lower, and even more preferably 110°C or lower.
• the lower limit can be, for example, 50°C or higher, or 80°C or higher.
• the pre-bake time is preferably 10 seconds to 300 seconds, more preferably 40 seconds to 250 seconds, even more preferably 80 seconds to 220 seconds. Prebaking can be performed on a hot plate, oven, or the like.
• the curable composition layer is exposed in a pattern (exposure step).
• the curable composition layer can be exposed in a pattern by exposing it to light through a mask having a predetermined mask pattern using a stepper exposure machine, a scanner exposure machine, or the like. This allows the exposed portion to be cured.
• Radiation (light) that can be used during exposure includes g-line, i-line, etc. Furthermore, light with a wavelength of 300 nm or less (preferably light with a wavelength of 150 nm to 300 nm) can also be used. Examples of light with a wavelength of 300 nm or less include KrF rays (wavelength 248 nm), ArF rays (wavelength 193 nm), and KrF rays (wavelength 248 nm). Furthermore, a long-wave light source of 300 nm or more can also be used.
• pulse exposure is an exposure method in which exposure is performed by repeating light irradiation and pauses in short cycles (for example, on the millisecond level or less).
• the irradiation amount is, for example, preferably 0.03 J/cm 2 to 2.5 J/cm 2 , more preferably 0.05 J/cm 2 to 1.0 J/cm 2 .
• the oxygen concentration at the time of exposure can be appropriately selected, and in addition to being carried out in the atmosphere, for example, in a low oxygen atmosphere with an oxygen concentration of 19% by volume or less (for example, 15% by volume, 5% by volume, or substantially
• the exposure may be performed in an oxygen-free atmosphere (without oxygen), or in a high oxygen atmosphere with an oxygen concentration exceeding 21 volume % (for example, 22 volume %, 30 volume %, or 50 volume %).
• the exposure illuminance can be set appropriately, and is usually selected from the range of 1000W/m 2 to 100000W/m 2 (for example, 5000W/m 2 , 15000W/m 2 , or 35000W/m 2 ). Can be done.
• the oxygen concentration and the exposure illuminance may be appropriately combined.
• the illumination intensity may be 10,000 W/m 2 at an oxygen concentration of 10% by volume, or 20,000 W/m 2 at an oxygen concentration of 35% by volume.
• the unexposed areas of the curable composition layer are developed and removed to form a pattern (pixel).
• the unexposed areas of the curable composition layer can be removed by development using a developer.
• the curable composition layer in the unexposed area in the exposure step is eluted into the developer, and only the photocured area remains.
• the temperature of the developer is preferably 20°C to 30°C, for example.
• the development time is preferably 20 seconds to 180 seconds. Furthermore, in order to improve the ability to remove residues, the process of shaking off the developer every 60 seconds and supplying a new developer may be repeated several times.
• Examples of the developer include organic solvents, alkaline developers, and alkaline developers are preferably used.
• the developer and development method described in paragraph 0214 of International Publication No. 2022/085485 can also be used.
• Additional exposure processing and post-bake are post-development curing processing to complete curing.
• the heating temperature in post-baking is, for example, preferably 100°C to 240°C, more preferably 200°C to 240°C.
• Post-baking can be carried out in a continuous or batch manner using a heating means such as a hot plate, convection oven (hot air circulation dryer), or high-frequency heater to maintain the developed film under the above conditions.
• the light used for exposure is preferably light with a wavelength of 400 nm or less. Further, the additional exposure process may be performed by the method described in Korean Patent Publication No. 10-2017-0122130.
• optical element An optical element according to the present disclosure includes a film according to the present disclosure.
• optical elements include optical filters, lenses, prisms, reflective mirrors, and diffraction gratings. Among them, optical filters are preferred. Types of optical filters include color filters and infrared transmission filters, and color filters are preferred.
• the color filter has a film according to the present disclosure as its colored pixels.
• the film thickness of the film according to the present disclosure can be adjusted as appropriate depending on the purpose.
• the film thickness is preferably 20 ⁇ m or less, more preferably 10 ⁇ m or less, and even more preferably 5 ⁇ m or less.
• the lower limit of the film thickness is preferably 0.1 ⁇ m or more, more preferably 0.2 ⁇ m or more, and even more preferably 0.3 ⁇ m or more.
• the width of the pixels included in the optical filter is preferably 0.4 ⁇ m to 10.0 ⁇ m.
• the lower limit is more preferably 0.4 ⁇ m or more, even more preferably 0.5 ⁇ m or more, and particularly preferably 0.6 ⁇ m or more.
• the upper limit is more preferably 5.0 ⁇ m or less, even more preferably 2.0 ⁇ m or less, particularly preferably 1.0 ⁇ m or less, and most preferably 0.8 ⁇ m or less.
• the Young's modulus of the pixel is preferably 0.5 GPa to 20 GPa, more preferably 2.5 GPa to 15 GPa.
• each pixel included in the optical filter has high flatness.
• the surface roughness Ra of the pixel is preferably 100 nm or less, more preferably 40 nm or less, and even more preferably 15 nm or less. Although the lower limit is not specified, it is preferably 0.1 nm or more, for example.
• the surface roughness of a pixel can be measured using, for example, an AFM (atomic force microscope) Dimension 3100 manufactured by Veeco. Further, the contact angle of water on the pixel can be set to a suitable value, but is typically in the range of 50° to 110°.
• the contact angle can be measured using, for example, a contact angle meter CV-DT-A type (manufactured by Kyowa Interface Science Co., Ltd.). Further, it is preferable that the volume resistance value of the pixel is high. Specifically, the volume resistance value of the pixel is preferably 10 9 ⁇ cm or more, more preferably 10 11 ⁇ cm or more. Although the upper limit is not specified, it is preferably 10 14 ⁇ cm or less, for example.
• the volume resistance value of a pixel can be measured using an ultra-high resistance meter 5410 (manufactured by Advantest).
• a protective layer may be provided on the surface of the film according to the present disclosure.
• various functions such as oxygen blocking, low reflection, hydrophilic and hydrophobic properties, and shielding of light of a specific wavelength (ultraviolet rays, near infrared rays, etc.) can be imparted.
• the thickness of the protective layer is preferably 0.01 ⁇ m to 10 ⁇ m, more preferably 0.1 ⁇ m to 5 ⁇ m.
• Examples of the method for forming the protective layer include a method of applying a composition for forming the protective layer, a chemical vapor deposition method, and a method of pasting a molded resin with an adhesive.
• Components constituting the protective layer include (meth)acrylic resin, ene thiol resin, polycarbonate resin, polyether resin, polyarylate resin, polysulfone resin, polyethersulfone resin, polyphenylene resin, polyarylene ether phosphine oxide resin, polyimide.
• Resin polyamideimide resin, polyolefin resin, cyclic olefin resin, polyester resin, styrene resin, polyol resin, polyvinylidene chloride resin, melamine resin, urethane resin, aramid resin, polyamide resin, alkyd resin, epoxy resin, modified silicone resin, fluorine Examples include resin, polycarbonate resin, polyacrylonitrile resin, cellulose resin, Si, C, W, Al 2 O 3 , Mo, SiO 2 , Si 2 N 4 and the like, and two or more of these components may be contained.
• the protective layer preferably contains a polyol resin, SiO 2 and Si 2 N 4 .
• the protective layer preferably contains a (meth)acrylic resin and a fluororesin.
• the protective layer may contain organic/inorganic particles, absorbers for light of specific wavelengths (e.g., ultraviolet rays, near-infrared rays, etc.), refractive index adjusters, antioxidants, adhesives, surfactants, and other additives, as necessary. May contain.
• organic/inorganic particles include polymer particles (e.g., silicone resin particles, polystyrene particles, melamine resin particles), titanium oxide, zinc oxide, zirconium oxide, indium oxide, aluminum oxide, titanium nitride, titanium oxynitride. , magnesium fluoride, hollow silica, silica, calcium carbonate, barium sulfate, and the like.
• the absorber for light of a specific wavelength a known absorber can be used.
• the content of these additives can be adjusted as appropriate, but is preferably 0.1% to 70% by weight, more preferably 1% to 60% by weight, based on the total weight of the protective layer.
• the protective layer the protective layers described in paragraph numbers 0073 to 0092 of JP-A No. 2017-151176 can also be used.
• the optical filter may have a structure in which each pixel is embedded in a space partitioned into a lattice shape by partition walls, for example.
• An image sensor according to the present disclosure includes a film according to the present disclosure.
• the image sensor include a solid-state image sensor, an X-ray image sensor, an organic thin film image sensor, and the like. Among these, it can be suitably used for solid-state imaging devices.
• a solid-state imaging device according to the present disclosure includes a film according to the present disclosure.
• the configuration of the solid-state image sensor is not particularly limited as long as it functions as a solid-state image sensor, but examples include the following configurations.
• a solid-state image sensor CCD (charge-coupled device) image sensor, CMOS (complementary metal oxide semiconductor) image sensor, etc.
• a transfer electrode made of polysilicon or the like.
• a device protective film made of silicon nitride or the like is formed on the light shielding film so as to cover the entire surface of the light shielding film and the light receiving part of the photodiode. It has a configuration in which a color filter is provided on the device protective film.
• the color filter may have a structure in which each colored pixel is embedded in a space partitioned into, for example, a lattice shape by partition walls.
• the partition wall preferably has a lower refractive index than each colored pixel. Examples of imaging devices having such a structure include devices described in Japanese Patent Application Publication No. 2012-227478, Japanese Patent Application Publication No. 2014-179577, and International Publication No.
• an ultraviolet absorbing layer may be provided within the structure of the solid-state image sensor to improve light resistance.
• An imaging device including a solid-state imaging device according to the present disclosure can be used not only as a digital camera or an electronic device having an imaging function (such as a mobile phone), but also as an in-vehicle camera or a surveillance camera.
• An image display device includes a film according to the present disclosure.
• Examples of the image display device include a liquid crystal display device and an organic electroluminescence display device.
• Examples of an image display device and details of each image display device see, for example, “Electronic Display Devices (written by Akio Sasaki, Kogyo Chosenkai Co., Ltd., published in 1990)” and “Display Devices (written by Junaki Ibuki, published by Sangyo Tosho)”. Co., Ltd., issued in 1989).
• liquid crystal display devices are described, for example, in "Next Generation Liquid Crystal Display Technology (edited by Tatsuo Uchida, published by Kogyo Chosenkai Co., Ltd., 1994)".
• Next Generation Liquid Crystal Display Technology edited by Tatsuo Uchida, published by Kogyo Chosenkai Co., Ltd., 1994.
• the present disclosure can be applied to various types of liquid crystal display devices described in the above-mentioned "Next Generation Liquid Crystal Display Technology.”
• the radical polymerization initiator according to the present disclosure is represented by the following formula (1).
• the radical polymerization initiator according to the present disclosure is preferably a radical photopolymerization initiator, and more preferably a radical photopolymerization initiator that generates radicals with light having a wavelength of 150 nm to 300 nm.
• Ar 1 represents an m-valent linking group
• R 1 each independently represents an alkyl group, an aryl group, an alkoxy group, an aryloxy group, a heteroaryl group, or a heteroaryloxy group.
• R 15 to R 19 each independently represent a hydrogen atom, a halogen atom, an alkyl group, an aryl group, a nitro group, an alkoxy group, or an aryloxy group, and two or more R 15 to R 19 are connected to each other to form a ring.
• structure may be formed, and the formed ring structure may be an aromatic ring
• Y 1 each independently represents a hydrogen atom, an alkyl group, or an aryl group
• m represents an integer from 2 to 4
• n each independently represents 0 or 1.
• a preferred embodiment of the radical polymerization initiator represented by formula (1) in the radical polymerization initiator according to the present disclosure is the same as a preferred embodiment of the radical polymerization initiator represented by formula (1) described above in the curable composition. It is.
• radical polymerization initiator A-52 Same as the synthesis of radical polymerization initiator A-52 except that 1H-3-acetylindole was replaced with 1H-3-(3-cyclopentyl-1-one)indole in the synthesis of radical polymerization initiator A-52.
• radical polymerization initiator A-51 the same method as the synthesis of radical polymerization initiator A-51 was used except that 4,4'-difluorodiphenylsulfone was used instead of 4,4'-difluorobenzophenone. , a radical polymerization initiator A-88 was synthesized.
• 1 HNMR (400MHz) ⁇ 1.1-1.2 (m, 4H), 1.5-1.8 (m, 12H), 1.8-2.0 (m, 6H), 2.45 ( s, 6H), 2.91 (dd, 4H), 7.2-8.8 (m, 18H)
• Intermediate A-137a was synthesized in the same manner as the synthesis of Intermediate A-52a, except that 1H-3-octanoylindole was used instead of 1H-3-acetylindole in the synthesis of Intermediate A-52a. I got it.
• Pigment Green 58 [zinc phthalocyanine complex, green pigment (G pigment)] PY129:C.
• Pigment Yellow 129 Azomethine copper complex, yellow pigment (Y pigment)] PY139:C.
• Pigment Yellow 139 [isoindoline compound, yellow pigment (Y pigment)] PY185:C.
• Pigment Yellow 185 [isoindoline compound, yellow pigment (Y pigment)] PY215:C.
• Pigment Yellow 215 [Pritedin compound, yellow pigment (Y pigment)] PB16:C.
• Pigment Blue 16 [metal-free phthalocyanine compound, blue pigment (B pigment)] PB15:6:C.
• Pigment Blue 15:6 [Copper phthalocyanine complex, blue pigment (B pigment)]
• IR dye Compound with the following structure (near infrared absorbing pigment (colorant, also absorbs in the visible light region), in the following structural formula, Me represents a methyl group and Ph represents a phenyl group)
• TiBk Titanium black [black pigment (Bk pigment)]
• Zr oxynitride Zirconium oxynitride [black pigment (Bk pigment)]
• P-1 30% by mass propylene glycol monomethyl ether acrylate (PGMEA) solution of a resin having the following structure.
• the numerical value appended to the main chain is the molar ratio, and the numerical value appended to the side chain is the number of repeating units.
• Mw 20,000.
• P-2 30% by mass PGMEA solution of resin with the following structure.
• the numerical value appended to the main chain is the molar ratio
• the numerical value appended to the side chain is the number of repeating units.
• P-3 30% by mass PGMEA solution of resin with the following structure.
• the numerical value appended to the main chain is the molar ratio
• the numerical value appended to the side chain is the number of repeating units. Mw: 21,000.
• P-4 30% by mass PGMEA solution of resin with the following structure.
• the number appended to the side chain is the number of repeating units.
• Mw 9,000.
• P-5 30% by mass PGMEA solution of resin with the following structure.
• the number appended to the side chain is the number of repeating units.
• Mw 10,000.
• Surfactant 1 1% by mass PGMEA solution of KF-6001 (manufactured by Shin-Etsu Chemical Co., Ltd.).
• Ba-2 Resin with the following structure (the numerical value appended to the main chain is the molar ratio. Weight average molecular weight 15,000)
• D-1 KAYARAD DPHA (6-functional acrylate compound, manufactured by Nippon Kayaku Co., Ltd.)
• D-2 NK ester A-DPH-12E (ethylene oxide (EO) modified hexafunctional acrylate compound, manufactured by Shin Nakamura Chemical Co., Ltd.)
• D-3 NK ester A-TMMT (tetrafunctional acrylate compound, manufactured by Shin-Nakamura Chemical Co., Ltd.)
• D-4 Aronix M-510 (3-4 functional acrylate compound, manufactured by Toagosei Co., Ltd.)
• D-5 Light acrylate DCP-A (bifunctional alicyclic acrylate compound, manufactured by Kyoeisha Chemical Co., Ltd.)
• a-5 Api-307, manufactured by YOUWEI, aminoacetophenone polymerization initiator a-6: Compound with the following structure
• CA-1 The following compound
• CA-2 The following compound
• ⁇ Chain transfer agent> F-1: Karenz MT PE1, manufactured by Showa Denko K.K., tetrafunctional thiol compound
• F-2 Karenz MT BD1, manufactured by Showa Denko K.K., difunctional thiol compound
• Sensitivity evaluation is based on the minimum exposure amount (optimum exposure amount) when the film thickness after development of the area irradiated with light in the above exposure process is 95% or more of the 100% film thickness before exposure. ) was measured and evaluated as sensitivity. The smaller the value of the minimum exposure amount (optimum exposure amount) mentioned above, the higher the sensitivity.
• ⁇ Adhesion>> Each curable composition was applied onto a silicon wafer using a spin coater, and then heated (prebaked) at 100°C for 120 seconds using a hot plate to obtain a coating film with a film thickness of 1.0 ⁇ m. Ta. Next, using an i-line stepper exposure device FPA-3000iS+ (manufactured by Canon Inc.), it was exposed to light at an exposure dose of 400 mJ/cm 2 through a mask carved with a 0.8 ⁇ m checkered pattern. .
• Pattern cross-sectional shape 1 was evaluated based on the following criteria. Note that the inclination of the cross section of the pattern is the inclination in the thickness direction of the pattern on the silicon wafer at the portion where the pattern is formed. Specifically, the angle between the surface of the silicon wafer and the side of the pattern in the thickness direction was measured.
• the area of the pattern increases from the silicon wafer side to the surface side of the pattern, that is, the bottom of the pattern has an edge, which is not desirable.
• ⁇ Coating film uniformity>> Each curable composition was applied onto a silicon wafer using a spin coater, and then heated (prebaked) at 100°C for 120 seconds using a hot plate to obtain a coating film with a film thickness of 1.0 ⁇ m. Ta.
• the surface was observed using an optical microscope (BX53M, manufactured by Olympus Corporation) at a magnification of 1,000 times, and the area of the streaky portion of the coating film on one screen was observed and evaluated.
• the evaluation criteria are as follows. The less uneven streaks there are, the better the uniformity of the coating film will be.
• the curable compositions of Examples had better sensitivity than the curable compositions of Comparative Examples. Furthermore, as shown in Tables 11 and 12 above, the curable compositions of Examples are also excellent in adhesion, undercut suppression, and coating film uniformity.
• the curable compositions of each example can obtain similar effects even when irradiated with KrF rays instead of i-rays.
• Conditions for KrF ray irradiation include, for example, exposure light: KrF rays (wavelength 248 nm), exposure amount: 10 mJ/cm 2 to 500 mJ/cm 2 , maximum instantaneous illuminance: 250,000,000 W/m 2 (average illuminance: 30 ,000 W/m 2 ), pulse width: 30 nanoseconds, and frequency: 4 kHz.
• Example 301 Fabrication of solid-state image sensor
• the curable composition of Example 1 was applied onto a silicon wafer by spin coating so that the film thickness after film formation was 0.4 ⁇ m. Then, using a hot plate, it was heated at 100° C. for 2 minutes. Next, using an i-line stepper exposure device FPA-3000i5+ (manufactured by Canon Inc.), exposure was performed at 1,000 mJ/cm 2 through a mask with a 1.0 ⁇ m square dot pattern. Next, paddle development was performed at 23° C. for 60 seconds using a 0.3% by mass aqueous solution of tetramethylammonium hydroxide (TMAH). Thereafter, it was rinsed with a spin shower and further washed with pure water.
• TMAH tetramethylammonium hydroxide
• a red pattern formed by curing the curable composition of Example 1 was formed on the silicon wafer by heating at 200° C. for 5 minutes using a hot plate.
• the curable composition of Example 6 (green) and the curable composition of Example 11 (blue) were sequentially patterned to form a colored pattern of red, green, and blue (Bayer pattern).
• the Bayer pattern includes one red element, two green elements, and one blue element, as disclosed in U.S. Pat. No. 3,971,065. ) elements are repeated 2 ⁇ 2 arrays of color filter elements.
• the obtained color filter was incorporated into a solid-state image sensor according to a known method. It was confirmed that no matter which of the curable compositions prepared in the examples were used, the solid-state imaging device had excellent adhesion in the cured film, and a solid-state imaging device with suitable image recognition ability was obtained. .

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