WO2024024438A1

WO2024024438A1 - Clathrate compound and method for producing same, polymerizable composition, resin composition, polymer, cured product, and laminate

Info

Publication number: WO2024024438A1
Application number: PCT/JP2023/025025
Authority: WO
Inventors: 良弘神保; 寛敬佐藤
Original assignee: 富士フイルム株式会社; 富士フイルム和光純薬株式会社
Priority date: 2022-07-29
Filing date: 2023-07-05
Publication date: 2024-02-01

Abstract

A clathrate compound containing a host molecule and a guest molecule in which the host molecule is a compound represented by formula (1) or a cyclic oligosaccharide and the guest molecule is a squarylium compound represented by formula (2), and a method for producing the same, a polymerizable composition, a resin composition, a polymer, a cured product, and a laminate [in formula (1), R¹ to R¹² represent a hydrogen atom or a substituent, n1 and n3 represent an integer of 0-3, n2 and n4 represent an integer of 0-4, and ring A and ring B represent an aromatic ring. In formula (2), R²¹, R²³, R²⁵, and R²⁷ represent a hydrogen atom or a substituent, and ring C represents an aromatic ring. Where, at least one of substituents in formula (2) represents a group containing a polymerizable group having an ethylenically unsaturated bond.].

Description

Inclusion compounds and their production methods, polymerizable compositions, resin compositions, polymers, cured products, and laminates

The present disclosure relates to an clathrate compound, a method for producing the same, a polymerizable composition, a resin composition, a polymer, a cured product, and a laminate.

Liquid crystal display devices are increasingly being used as space-saving image display devices with low power consumption. In markets such as televisions that require high-quality images, there is an increasing demand for improved color reproducibility in addition to resolution. A liquid crystal display device has a liquid crystal panel that displays an image and includes a non-emissive element that does not emit light itself. Therefore, a backlight unit is disposed on the back side of the liquid crystal panel to supply light to the liquid crystal panel.

In recent years, white light emitting diodes (LEDs) have come to be used as light sources for backlight units. As a light emitting method using a white LED, for example, white light is created by mixing blue light emitted from a blue LED with light emitted from a yellow phosphor, or a green phosphor and a red phosphor. The method is known. However, the white LED using the above method has a problem in that its color reproduction range is narrower than organic light emitting diodes (OLEDs), which are in the spotlight as light sources for next-generation displays. As a technique for solving this problem, a technique has been proposed in which a layer containing a dye is provided on a diffusion film in a backlight unit to block unnecessary wavelengths of light emitted from white LEDs.
For example, Japanese Patent Laid-Open No. 2019-12159 discloses a color that uses a squarylium compound with a specific structure to selectively block light in the wavelength range around 600 nm, which has poor color purity and passes through color filters. A corrective optical filter is disclosed.
Japanese Patent No. 6,894,500 discloses a color filter using a dye having a core-shell structure, in which the core is a squarylium compound having a specific structure and the shell is a macrocyclic compound having a specific structure.

A problem to be solved by an embodiment of the present disclosure is to provide a novel clathrate compound containing a squarylium compound, which can suppress wet thermal decomposition of the squarylium compound in a membrane.
A problem to be solved by other embodiments of the present disclosure is to provide a method for producing the above-mentioned clathrate compound.
A problem to be solved by still another embodiment of the present disclosure is to provide a polymerizable composition and a resin composition containing the above-mentioned clathrate compound, as well as a polymer, a cured product, and a laminate using the above-mentioned clathrate compound. It is to be.

Specific means for solving the above problems include the following embodiments.
<1> Contains a host molecule and a guest molecule,
The host molecule is a compound represented by the following formula (1) or a cyclic oligosaccharide,
A clathrate compound in which the guest molecule is a squarylium compound represented by the following formula (2).

In formula (1), R ¹ , R ² , R ³ , R ⁴ , R ⁵ , R ⁶ , R ⁷ , R ⁸ , R ⁹ , R ¹⁰ , R ¹¹ and R ¹² are each independently a hydrogen atom or Represents a substituent. n1 and n3 each independently represent an integer of 0 to 3, and n2 and n4 each independently represent an integer of 0 to 4. When n2 is 2 or more, a plurality of R ² may be combined to form a ring. When n4 is 2 or more, a plurality of ^R4s may be combined to form a ring. Ring A and ring B each independently represent an aromatic ring.

In formula (2), R ²¹ , R ²³ , R ²⁵ and R ²⁷ each independently represent a hydrogen atom or a substituent. R ²¹ and R ²³ , R ²³ and R ²⁵ , and R ²⁵ and R ²⁷ may each be bonded to form a ring. Ring C represents an aromatic ring. However, at least one of the substituents in formula (2) represents a group containing a polymerizable group having an ethylenically unsaturated bond.

<2> The compound represented by the above formula (1) is the clathrate compound according to <1>, which is a compound represented by the following formula (1-1).

In formula (1-1), R ^1a , R ^2a , R ^3a , R ^4a , R ^5a , R ^6a , R ^7a , R ^8a , R ^9a , R ^10a , R ^11a and R ^12a each independently represent hydrogen. Represents an atom or a substituent. n1 and n3 each independently represent an integer of 0 to 3, and n2 and n4 each independently represent an integer of 0 to 4. When n2 is 2 or more, a plurality of R ^2a may be combined to form a ring. When n4 is 2 or more, a plurality of R ^4a may be combined to form a ring. X ¹ and X ² each independently represent a carbon atom or a nitrogen atom.

<3> The squarylium compound is the clathrate compound according to <1> or <2>, which is a compound represented by the following formula (2-1).

In formula (2-1), R ^21a , R ^22a , R ^23a , R ^24a , R ^25a , R ^26a , R ^27a and R ^28a each independently represent a hydrogen atom or a substituent. R ^21a and R ^23a , R ^22a and R ^24a , R ^23a and R ^25a , R ^24a and R ^26a , R ^25a and R ^27a , and R ^26a and R ^28a may each be combined to form a ring. . However, at least one of R ^21a , R ^22a , R ^23a , R ^24a , R ^25a , R ^26a , R ^27a and R ^28a represents a group containing a polymerizable group having an ethylenically unsaturated bond.

<4> In the above formula (2-1), R ^21a , R ^22a , R ^23a , R ^24a , R ^25a and R ^26a each independently represent a hydrogen atom, a halogen group, an alkyl group, an aryl group, an alkoxy group, An aryloxy group, an acyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, a carbamoyl group, an acylamino group, an alkoxycarbonylamino group, a carbamoylamino group, or a cyano group, and R ^27a and R ^28a are each independently a hydrogen atom, It is an alkyl group or an aryl group, and at least one of R ^21a , R ^22a , R ^23a , R ^24a , R ^25a , R ^26a , R ^27a and R ^28a contains a polymerizable group having an ethylenically unsaturated bond. 3>.

<5> The clathrate compound according to <3> or <4>, wherein at least one of R ^23a and R ^24a in the above formula (2-1) is a group represented by the following formula (3).

In formula (3), Q represents a single bond, an alkylene group, -O-, -S-, or -NR ²⁹ -, R ²⁹ represents a hydrogen atom or an alkyl group, and R ³⁰ represents a hydrogen atom or an alkyl group. represents a group. * represents the bonding position.

<6> The group containing a polymerizable group having an ethylenically unsaturated bond is a group containing a group represented by the following formula (4) or a group containing a group represented by the following formula (5) <1 The clathrate compound according to any one of > to <5>.

In formula (4), Y ^1a represents a single bond or an alkylene group, Y ^2a represents a single bond, -O- or -NR ³⁹ -, R ³⁹ represents a hydrogen atom or an alkyl group, and R ⁴⁰ , represents a hydrogen atom or an alkyl group. * represents the bonding position.
In formula (5), R ⁴¹ , R ⁴² , R ⁴³ , R ⁴⁴ and R ⁴⁵ each independently represent a hydrogen atom, a halogen group, an alkyl group, an alkoxy group, or a vinyl group, and Z represents a single bond or an alkylene group. represents a group. * represents the bonding position. However, at least one of R ⁴¹ , R ⁴² , R ⁴³ , R ⁴⁴ and R ⁴⁵ represents a vinyl group.

<7> A polymerizable composition comprising the clathrate compound according to any one of <1> to <6> and a polymerizable compound.
<8> The polymerizable compound described in <7> is at least one selected from the group consisting of (meth)acrylic acid, (meth)acrylic acid amide compound, (meth)acrylic acid ester compound, and styrene compound. polymerizable composition.
<9> The polymerizable composition according to <7> or <8>, further comprising an ultraviolet absorber.
<10> The polymerizable composition according to any one of <7> to <9>, further comprising a polymer compound.
<11> A resin composition comprising the clathrate compound according to any one of <1> to <6> and a resin.
<12> A polymer containing a structural unit derived from the clathrate compound according to any one of <1> to <6>.
<13> A cured product of the polymerizable composition according to any one of <7> to <9>.
<14> The cured product according to <13>, which is an optical filter.
<15> The cured product according to <13> or <14>, which has a maximum absorption wavelength within the range of 550 nm to 610 nm.
<16> A laminate comprising a support and the cured product according to any one of <13> to <15>.
<17> The laminate according to <16>, wherein the maximum absorption wavelength is within the range of 550 nm to 610 nm.

<18> A method for producing the clathrate compound according to <1> or <2>,
A step of reacting a compound represented by the following formula (6) with an aromatic compound in a solvent containing alcohol to obtain a compound represented by the above formula (2);
a step of including a compound represented by the above formula (2) in the host molecule;
A method for producing an clathrate compound containing.

In formula (6), R ^21b , R ^23b , R ^25b and R ^27b each independently represent a hydrogen atom or a substituent. R ^21b and R ^23b , R ^23b and R ^25b , and R ^25b and R ^27b may be bonded to each other to form a ring. However, at least one of R ^21b , R ^23b , R ^25b and R ^27b represents a group containing a polymerizable group having an ethylenically unsaturated bond.

<19> A method for producing the clathrate compound according to any one of <3> to <6>,
A step of reacting a compound represented by the following formula (6) and a compound represented by the following formula (7) in a solvent containing alcohol to obtain a compound represented by the above formula (2-1);
a step of including a compound represented by the above formula (2-1) in the host molecule;
A method for producing an clathrate compound containing.

In formulas (6) and (7), R ^21b , R ^22b , R ^23b , R ^24b , R ^25b , R ^26b , R ^27b and R ^28b each independently represent a hydrogen atom or a substituent. R ^21b and R ^23b , R ^22b and R ^24b , R ^23b and R ^25b , R ^24b and R ^26b , R ^25b and R ^27b , and R ^26b and R ^28b may each be combined to form a ring. . However, at least one of R ^21b , R ^22b , R ^23b , R ^24b , R ^25b , R ^26b , R ^27b and R ^28b represents a group containing a polymerizable group having an ethylenically unsaturated bond.

<20> A method for producing the clathrate compound according to any one of <3> to <6>,
A step of reacting a compound represented by the following formula (8) and a compound represented by the following formula (9) in a solvent containing alcohol to obtain a compound represented by the above formula (2-1);
a step of including a compound represented by the above formula (2-1) in the host molecule;
A method for producing an clathrate compound containing.

In formula (8), R ^21c , R ^23c , R ^25c and R ^27c each independently represent a hydrogen atom or a substituent. R ^21c and R ^23c , R ^23c and R ^25c , and R ^25c and R ^27c may be bonded to each other to form a ring. However, at least one of R ^21c , R ^23c , R ^25c and R ^27c represents a group containing a polymerizable group having an ethylenically unsaturated bond.

According to one embodiment of the present disclosure, there is provided a novel clathrate compound containing a squarylium compound, which is capable of suppressing wet thermal decomposition of the squarylium compound in a membrane.
According to another embodiment of the present disclosure, a method for producing the above-mentioned clathrate compound is provided.
According to still other embodiments of the present disclosure, there are provided polymerizable compositions and resin compositions containing the above-mentioned clathrate compounds, as well as polymers, cured products, and laminates using the above-mentioned clathrate compounds.

Hereinafter, the present disclosure will be explained in detail. Although the description of the requirements set forth below may be based on representative implementations of this disclosure, this disclosure is not limited to such implementations and is within the scope of this disclosure. can be implemented with appropriate changes.

In the present disclosure, a numerical range indicated using "~" means a range that includes the numerical values written before and after "~" as the lower limit and upper limit, respectively.
In the numerical ranges described step by step in the present disclosure, the upper limit or lower limit described in a certain numerical range may be replaced with the upper limit or lower limit of another numerical range described step by step. Furthermore, in the numerical ranges described in this disclosure, the upper limit or lower limit described in a certain numerical range may be replaced with the value shown in the Examples.

In this disclosure, when referring to the amount of each component in the composition, if there are multiple substances corresponding to each component in the composition, unless otherwise specified, the amount of each component present in the composition is means the total amount.

In the present disclosure, a combination of two or more preferred embodiments is a more preferred embodiment.

In the present disclosure, "semi-cured" means a state that has not yet been completely cured, and "semi-cured product" means a cured product that has not yet been completely cured.

In the present disclosure, "solid content" means components excluding the solvent, and "solvent" means water and organic solvents.

In this disclosure, the term "step" is used not only to refer to an independent process, but also to include a process that is not clearly distinguishable from other processes, as long as the intended purpose of the process is achieved. .

In this disclosure, "(meth)acrylic" is a term that includes both "acrylic" and "methacrylic", "(meth)acrylate" is a term that includes both "acrylate" and "methacrylate", "(Meth)acryloyl" is a term that includes both "acryloyl" and "methacryloyl," and "(meth)allyl" is a term that includes both "methallyl" and "allyl."

In the present disclosure, "n-" means normal, and "t-" means tertiary.

In the present disclosure, the molecular weight when there is a molecular weight distribution represents a weight average molecular weight (Mw; the same applies hereinafter) unless otherwise specified.

The weight average molecular weight (Mw) in the present disclosure is a value measured by gel permeation chromatography (GPC).
For measurement by GPC, HLC (registered trademark)-8220GPC [manufactured by Tosoh Corporation] was used as a measuring device, and TSKgel (registered trademark) Super HZ2000 [4.6 mm ID x 15 cm, manufactured by Tosoh Corporation] was used as a column. TSKgel (registered trademark) Super HZ4000 [4.6 mm ID x 15 cm, manufactured by Tosoh Corporation], and TSKgel (registered trademark) Super HZ-H [4.6 mm ID x 15 cm, manufactured by Tosoh Corporation] are connected in series. and use N-methylpyrrolidone (NMP) as the eluent. The measurement conditions were a sample concentration of 0.3% by mass, a flow rate of 0.35ml/min, a sample injection volume of 10μL, and a measurement temperature of 40°C, using differential refractive index (RI) detection as a detector. Use a vessel. The calibration curve is based on "standard samples TSK standard, polystyrene" manufactured by Tosoh Corporation: "F-80", "F-20", "F-4", "F-2", "A-5000", and Produced from 6 samples of "A-1000".

In the description of groups (atomic groups) in the present disclosure, descriptions that do not indicate substituted or unsubstituted include those without a substituent as well as those with a substituent. For example, the term "alkyl group" includes not only an alkyl group without a substituent (also referred to as an "unsubstituted alkyl group"), but also an alkyl group with a substituent (also referred to as a "substituted alkyl group"). It is inclusive.

The "substituent" in the present disclosure is not particularly limited, and includes, for example, a halogen group, a hydroxy group, an alkyl group, a cycloalkyl group, an alkenyl group, a cycloalkenyl group, an alkynyl group, an aryl group, a heterocyclic group, an alkoxy group, and an aryl group. Oxy group, heterocyclic oxy group, sulfo group, acyl group, alkoxycarbonyl group, aryloxycarbonyl group, carboxy group, carbamoyl group, acyloxy group, carbamoyloxy group, alkoxycarbonyloxy group, aryloxycarbonyloxy group, cyano group, Nitro group, amino group (including anilino group), acylamino group, alkoxycarbonylamino group, carbamoylamino group, aryloxycarbonylamino group, sulfamoylamino group, alkylsulfonylamino group, arylsulfonylamino group, mercapto group, alkylthio group, arylthio group, heterocyclic thio group, sulfamoyl group, alkylsulfinyl group, arylsulfinyl group, alkylsulfonyl group, arylsulfonyl group, arylazo group, heterocyclic azo group, imido group, phosphino group, phosphinyl group, phosphinyloxy and a phosphinylamino group.

In more detail, the substituents in the present disclosure include, for example, halogen groups (e.g., fluoro, chloro, bromo, and iodo groups), alkyl groups (1 to 10, preferably 1 to 6) Straight chain, branched or cyclic alkyl group having carbon atoms; for example, methyl group, ethyl group, n-propyl group, isopropyl group, t-butyl group, n-octyl group, 2-chloroethyl group, 2-cyanoethyl group, and 2-ethylhexyl group), cycloalkyl group (preferably cyclopropyl group and cyclopentyl group), alkenyl group (straight chain, branched or cyclic having 2 to 10 carbon atoms, preferably 2 to 6 carbon atoms) Alkenyl groups; for example, vinyl, allyl, and prenyl groups), cycloalkenyl groups (preferably cyclopenten-1-yl groups), alkynyl groups (2 to 10, preferably 2 to 6 carbon atoms) (e.g., ethynyl and propargyl groups), aryl groups (aryl groups with 6 to 12, preferably 6 to 8 carbon atoms; e.g., phenyl, p-tolyl, naphthyl) group, 3-chlorophenyl group, and 2-aminophenyl group), heterocyclic group (obtained by removing one hydrogen atom from a 5- or 6-membered aromatic or non-aromatic heterocyclic compound, Monovalent groups having 1 to 12, preferably 2 to 6 carbon atoms; for example, 1-pyrazolyl, 1-imidazolyl, 2-furyl, 2-thienyl, 4-pyrimidinyl, and 2-benzothiazolyl groups), cyano groups, hydroxy groups, nitro groups, alkoxy groups (straight-chain, branched or cyclic alkoxy groups having 1 to 10, preferably 1 to 6 carbon atoms; for example, methoxy groups) , ethoxy group, isopropoxy group, t-butoxy group, cyclopentyloxy group, 2-buten-1-yloxy group, and 2-methoxyethoxy group), aryloxy group (6 to 12, preferably 6 to 8 aryloxy groups having 5 carbon atoms; for example, phenoxy, 2-methylphenoxy, 4-t-butylphenoxy, and 3-nitrophenoxy),

Heterocyclic oxy group (heterocyclic oxy group having 1 to 12, preferably 2 to 6 carbon atoms; for example, 1-phenyltetrazole-5-oxy-2-tetrahydropyranyloxy group), acyloxy group (acyloxy groups having 1 to 12, preferably 1 to 8 carbon atoms; for example, formyloxy, acetyloxy, pivaloyloxy, benzoyloxy, and p-methoxyphenylcarbonyloxy), carbamoyl Oxy group (carbamoyloxy group having 1 to 10, preferably 1 to 6 carbon atoms; for example, N,N-dimethylcarbamoyloxy group, N,N-diethylcarbamoyloxy group, morpholinocarbonyloxy group, and N,N-octylcarbamoyloxy group), alkoxycarbonyloxy group (alkoxycarbonyloxy group having 2 to 10 carbon atoms, preferably 2 to 6 carbon atoms; for example, methoxycarbonyloxy group, ethoxycarbonyloxy group) , t-butoxycarbonyloxy group, and n-octyloxycarbonyloxy group), aryloxycarbonyloxy group (aryloxycarbonyloxy group having 7 to 12 carbon atoms, preferably 7 to 10 carbon atoms; for example, phenoxycarbonyloxy group, p-methoxyphenoxycarbonyloxy group), amino group (amino group; alkylamino group having 1 to 10 carbon atoms, preferably 1 to 6 carbon atoms; 6 to 12 carbon atoms, preferably is an anilino group having 6 to 8 carbon atoms; or a heterocyclic amino group having 1 to 12, preferably 2 to 6 carbon atoms; for example, an amino group, a methylamino group, a dimethylamino group , anilino group, N-methyl-anilino group, diphenylamino group, imidazol-2-ylamino group, and pyrazol-3-ylamino group), acylamino group (1 to 10, preferably 1 to 6) an alkylcarbonylamino group having 6 to 12 carbon atoms, preferably 6 to 8 carbon atoms; or an arylcarbonylamino group having 2 to 12 carbon atoms, preferably 2 to 6 carbon atoms; Heterocyclic carbonylamino group having; for example, a formylamino group, an acetylamino group, a pivaloylamino group, a benzoylamino group, a pyridine-4-carbonylamino group, and a thiophene-2-carbonylamino group), an aminocarbonylamino group (1 Aminocarbonylamino groups having from 1 to 12 carbon atoms, preferably from 1 to 6 carbon atoms; for example, carbamoylamino, N,N-dimethylaminocarbonylamino, N,N-diethylaminocarbonylamino, and morpholine- 4-ylcarbonylamino group), alkoxycarbonylamino group (alkoxycarbonylamino group having 2 to 10, preferably 2 to 6 carbon atoms; for example, methoxycarbonylamino group, ethoxycarbonylamino group, and t- butoxycarbonylamino group),

Aryloxycarbonylamino groups (aryloxycarbonylamino groups having 7 to 12, preferably 7 to 9 carbon atoms; for example, phenoxycarbonylamino, p-chlorophenoxycarbonylamino, and 4-methoxyphenoxy carbonylamino group), sulfamoylamino group (sulfamoylamino group having 0 to 10, preferably 0 to 6 carbon atoms; for example, sulfamoylamino group, N,N-dimethylaminosulfonyl amino groups, and N-(2-hydroxyethyl)sulfamoylamino groups), alkylsulfonylamino groups (alkylsulfonylamino groups having 1 to 10, preferably 1 to 6 carbon atoms; for example, methyl sulfonylamino group, butylsulfonylamino group), arylsulfonylamino group (arylsulfonylamino group having 6 to 12, preferably 6 to 8 carbon atoms; for example, phenylsulfonylamino group, 2,3, 5-trichlorophenylsulfonylamino group, p-methylphenylsulfonylamino group), mercapto group, alkylthio group (alkylthio group having 1 to 10, preferably 1 to 6 carbon atoms; for example, methylthio group, ethylthio group and butylthio group), arylthio group (arylthio group having 6 to 12 carbon atoms, preferably 6 to 8 carbon atoms; for example, phenylthio group, p-chlorophenylthio group, and m-methoxythio group), heterocyclic thio group (heterocyclic thio group having 2 to 10, preferably 1 to 6 carbon atoms; for example, 2-benzothiazolylthio group and 1-phenyltetrazol-5-ylthio group), Sulfamoyl group (sulfamoyl group having 0 to 10 carbon atoms, preferably 0 to 6 carbon atoms; for example, sulfamoyl group, N-ethylsulfamoyl group, N,N-dimethylsulfamoyl group, N-acetyl group) sulfamoyl group, and N-benzoylsulfamoyl group), alkylsulfinyl group (alkylsulfinyl group having 1 to 10, preferably 1 to 6 carbon atoms; for example, methylsulfinyl group, and ethylsulfinyl group) ), arylsulfinyl groups (arylsulfinyl groups having 6 to 12, preferably 6 to 8 carbon atoms; for example, phenylsulfinyl and p-methylphenylsulfinyl groups), alkylsulfonyl groups (1 Alkylsulfonyl groups having ~10, preferably 1 to 6 carbon atoms; e.g. methylsulfonyl and ethylsulfonyl), arylsulfonyl groups (having 6 to 12, preferably 6 to 8 carbon atoms) Arylsulfonyl groups having atoms; for example, phenylsulfonyl groups and p-chlorophenylsulfonyl groups), sulfo groups, acyl groups (formyl groups; alkylcarbonyl groups having 2 to 10 carbon atoms, preferably 2 to 6 carbon atoms) or an arylcarbonyl group having 7 to 12, preferably 7 to 9 carbon atoms; for example, acetyl, pivaloyl, 2-chloroacetyl, benzoyl, and 2,4-dichlorobenzoyl ),

Alkoxycarbonyl group (alkoxycarbonyl group having 2 to 10, preferably 2 to 6 carbon atoms; for example, methoxycarbonyl group, ethoxycarbonyl group, t-butoxycarbonyl group, and isobutyloxycarbonyl group), aryl Oxycarbonyl groups (aryloxycarbonyl groups having 7 to 12, preferably 7 to 9 carbon atoms; for example, phenoxycarbonyl-2-chlorophenoxycarbonyl groups, 3-nitrophenoxycarbonyl groups, and 4-t -butylphenoxycarbonyl group), carbamoyl group (carbamoyl group having 1 to 10 carbon atoms, preferably 1 to 6 carbon atoms; for example, carbamoyl group, N-methylcarbamoyl group, N,N-dimethylcarbamoyl group, N-(2-hydroxyethyl)carbamoyl group and N-(methylsulfonyl)carbamoyl group), arylazo group (arylazo group having 6 to 12 carbon atoms, preferably 6 to 8 carbon atoms; for example, phenylazo group) , and p-chlorophenylazo group), heterocyclic azo group (heterocyclic azo group having 1 to 10 carbon atoms, preferably 1 to 6 carbon atoms; for example, pyrazol-3-ylazo group, thiazole-2- ylazo group, and 5-methylthio-1,3,4-thiadiazol-2-ylazo group), imide group (imide group having 2 to 10 carbon atoms, preferably 4 to 8 carbon atoms; for example, succinimide group) , and phthalimide groups), phosphino groups (phosphino groups having 2 to 12, preferably 2 to 6 carbon atoms; for example, dimethylphosphino, diphenylphosphino, and methylphenoxyphosphino groups), phosphinyl group (phosphinyl group having 2 to 12 carbon atoms, preferably 2 to 6 carbon atoms; for example, phosphinyl group and diethoxyphosphinyl group), phosphinyloxy group (having 2 to 6 carbon atoms; phosphinyloxy groups having 12, preferably 2 to 6 carbon atoms; for example, diphenoxyphosphinyloxy and dibutoxyphosphinyloxy groups), phosphinylamino groups (2 to 6 carbon atoms); Examples include phosphinylamino groups having 12, preferably 2 to 6 carbon atoms; for example, dimethoxyphosphinylamino groups and dimethylaminophosphinylamino groups).

When these groups can be further substituted, these groups can further contain substituents. When these groups are substituted with two or more substituents, these substituents may be the same or different.

[Inclusion compound]
The clathrate compound according to the present disclosure includes a host molecule and a guest molecule, where the host molecule is a compound represented by formula (1) or a cyclic oligosaccharide, and the guest molecule is represented by formula (2) below. It is a squarylium compound represented by:
The clathrate compound according to the present disclosure is a novel clathrate compound containing a squarylium compound.
The present inventors selected a squarylium compound having a pyrrole ring as a basic core as the squarylium compound, introduced a polymerizable group into this squarylium compound, and further included it in a cyclic compound with a specific structure, thereby achieving the following: It has been found that when used to form a film, the wet thermal decomposition of the squarylium compound in the film can be suppressed.
When a film is formed using the clathrate compound according to the present disclosure, since the squarylium compound has a polymerizable group, the polymerizability of the squarylium compound clathrated into a cyclic compound with a specific structure is increased in the polymerization step when forming the film. It is thought that the group reacts with the polymerizable group of the resin component (e.g., polymerizable compound) forming the membrane, and the squarylium compound is immobilized on the membrane in a state of inclusion in a cyclic compound with a specific structure.
According to the clathrate compound according to the present disclosure, the squarylium compound with a specific structure is immobilized on the membrane while being clathrated with the cyclic compound with a specific structure, so that it is possible to suppress the moist thermal decomposition of the squarylium compound in the membrane. Guessed.

In contrast to the clathrate compound according to the present disclosure, the squarylium compound described in JP-A-2019-12159 does not have a polymerizable group and is not clathrated. Therefore, the squarylium compound described in JP-A-2019-12159 is inferior to the clathrate compound according to the present disclosure in suppressing wet thermal decomposition of the squarylium compound in the film (see Comparative Example 1B described below). . Furthermore, in contrast to the clathrate compound according to the present disclosure, the core-shell dye described in Japanese Patent No. 6894500 has a squarylium compound having a polymerizable group and is clathrated in a cyclic compound, but pyrrole Since it is not a squarylium compound having a ring as a basic core, it is inferior to the clathrate compound according to the present disclosure in suppressing wet thermal decomposition of the squarylium compound in the film (see Comparative Example 2B described below).

Furthermore, the clathrate compound according to the present disclosure has excellent solubility in organic solvents. The excellent solubility of the clathrate compound according to the present disclosure in organic solvents is due to the specific structure of the squarylium compound contained in the clathrate compound according to the present disclosure, that is, it has a polymerizable group and the pyrrole ring is a base. It is speculated that this is due to the specific structure of the sexual nucleus.

Furthermore, according to the clathrate compound according to the present disclosure, when a film is formed by photopolymerization, photodecomposition of the squarylium compound during the photopolymerization process is suppressed. The squarylium compound contained in the clathrate compound according to the present disclosure has a specific structure and is immobilized on the film during photocuring while being clathrated in a cyclic compound with a specific structure, so it is difficult to process the photopolymerization process. It is assumed that it has excellent light fastness in the medium.

Furthermore, the film formed using the clathrate compound according to the present disclosure is unlikely to cause bleed-out of the squarylium compound and has excellent solvent resistance. The squarylium compound contained in the clathrate compound according to the present disclosure has a polymerizable group and is immobilized on the film during curing by a polymerization reaction, so it is presumed that bleed-out is unlikely to occur.

[Host molecule]
The host molecule in the present disclosure is a compound represented by the following formula (1) or a cyclic oligosaccharide. ) is preferable.

The details of the compound represented by formula (1) will be explained.
In formula (1), R ¹ , R ² , R ³ , R ⁴ , R ⁵ , R ⁶ , R ⁷ , R ⁸ , R ⁹ , R ¹⁰ , R ¹¹ and R ¹² are each independently a hydrogen atom or Represents a substituent.
Examples of the substituents represented by R ¹ , R ² , R ³ , R ⁴ , R ⁵ , R ⁶ , R ⁷ , R ⁸ , R ⁹ , R ¹⁰ , R ¹¹ and R ¹² include halogen groups, alkyl group, aryl group, hydroxy group, carboxy group, alkoxy group, amino group, alkenyl group, alkynyl group, heterocyclic group, alkylamino group, aryloxy group, acylamino group, arylamino group, ureido group, sulfamoylamino group, Alkylthio group, arylthio group, alkoxycarbonylamino group, sulfonamido group, carbamoyl group, sulfamoyl group, sulfonyl group, alkoxycarbonyl group, heterocyclicoxy group, acyloxy group, carbamoyloxy group, silyloxy group, aryloxycarbonyl group, aryloxy Examples include a carbonylamino group, an imide group, a heterocyclic thio group, a phosphoryl group, an acyl group, a cyano group, a silyl group, and an amino group.
Among these, the substituents represented by R ¹ , R ² , R ³ , R ⁴ , R ⁵ , R ⁶ , R ⁷ , R ⁸ , R ⁹ , R ¹⁰ , R ¹¹ and R ¹² include halogen groups. , an alkyl group, an aryl group, a hydroxy group, or a carboxy group.

Examples of the halogen group represented by R ¹ , R ² , R ³ , R ⁴ , R ⁵ , R ⁶ , R ⁷ , R ⁸ , R ⁹ , R ¹⁰ , R ¹¹ and R ¹² include fluoro group, chloro group, and bromo group.
The halogen group represented by R ¹ , R ² , R ³ , R ⁴ , R ⁵ , R ⁶ , R ⁷ , R ⁸ , R ⁹ , R ¹⁰ , R ¹¹ and R ¹² is preferably a chloro group .

The alkyl groups represented by R ¹ , R ² , R ³ , R ⁴ , R ⁵ , R ⁶ , R ⁷ , R ⁸ , R ⁹ , R ¹⁰ , R ¹¹ and R ¹² have a substituent. may have no substituent.
The alkyl groups represented by R ¹ , R ² , R ³ , R ⁴ , R ⁵ , R ⁶ , R ⁷ , R ⁸ , R ⁹ , R ¹⁰ , R ¹¹ and R ¹² are straight-chain alkyl groups; It may be a branched alkyl group, or it may be an alkyl group having a cyclic structure.
The alkyl group represented by R ¹ , R ² , R ³ , R ⁴ , R ⁵ , R ⁶ , R ⁷ , R ⁸ , R ⁹ , R ¹⁰ , R ¹¹ and R ¹² is an alkyl group having 1 to 30 carbon atoms. It is preferably a group, and more preferably an alkyl group having 1 to 12 carbon atoms.
Examples of the alkyl group represented by R ¹ , R ² , R ³ , R ⁴ , R ⁵ , R ⁶ , R ⁷ , R ⁸ , R ⁹ , R ¹⁰ , R ¹¹ and R ¹² include methyl group, isopropyl ethyl group, n-propyl group, t-butyl group, n-octyl group, or 2-ethylhexyl group, and more preferably methyl group or isopropyl group.

The aryl group represented by R ¹ , R ² , R ³ , R ⁴ , R ⁵ , R ⁶ , R ⁷ , R ⁸ , R ⁹ , R ¹⁰ , R ¹¹ and R ¹² has a substituent. may have no substituent.
The aryl group represented by R ¹ , R ² , R ³ , R ⁴ , R ⁵ , R ⁶ , R ⁷ , R ⁸ , R ⁹ , R ¹⁰ , R ¹¹ and R ¹² is an aryl group having 6 to 30 carbon atoms. It is preferably a group, and more preferably an aryl group having 6 to 10 carbon atoms.
The aryl group represented by R ¹ , R ² , R ³ , R ⁴ , R ⁵ , R ⁶ , R ⁷ , R ⁸ , R ⁹ , R ¹⁰ , R ¹¹ and R ¹² is preferably, for example, a phenyl group. .

R ¹ , R ² , R ³ , R ⁴ , R ⁵ , R ⁶ , R ⁷ , R ⁸ , R ⁹ , R ¹⁰ , R ¹¹ and R ¹² are, for example, raw materials for the compound represented by formula (1) From the viewpoint of availability and manufacturability, a hydrogen atom, a chloro group, a methyl group, an isopropyl group, a phenyl group, a hydroxy group, or a carboxy group is more preferable.

n1 and n3 each independently represent an integer from 0 to 3.
n1 is preferably an integer of 0 to 2, more preferably 0 or 1, and even more preferably 0.
n3 is preferably an integer of 0 to 2, more preferably 0 or 1, and even more preferably 0.

n2 and n4 each independently represent an integer of 0 to 4.
n2 is preferably an integer of 0 to 3, more preferably an integer of 0 to 2, even more preferably 0 or 1, and particularly preferably 0.
When n2 is 2 or more, a plurality of R ^2a may be combined to form a ring.
n4 is preferably an integer of 0 to 3, more preferably an integer of 0 to 2, even more preferably 0 or 1, and particularly preferably 0.
When n4 is 2 or more, a plurality of R ^4a may be combined to form a ring.

Ring A and ring B each independently represent an aromatic ring.
The aromatic ring represented by ring A and the aromatic ring represented by ring B may be the same or different, but are preferably the same.
The aromatic rings represented by ring A and ring B may have a substituent or may not have a substituent.
The aromatic rings represented by ring A and ring B may be aromatic hydrocarbon rings, aromatic heterocycles, or fused rings thereof.

When the aromatic ring represented by ring A and ring B is an aromatic hydrocarbon ring, the aromatic hydrocarbon ring represented by ring A and ring B is preferably a 5-membered ring or a 6-membered ring, More preferably, it is a 6-membered ring.
When the aromatic rings represented by Ring A and Ring B are aromatic hydrocarbon rings, the aromatic hydrocarbon rings represented by Ring A and Ring B are aromatic hydrocarbon rings having 6 to 30 carbon atoms. It is preferably an aromatic hydrocarbon ring having 6 to 20 carbon atoms, and even more preferably an aromatic hydrocarbon ring having 6 to 10 carbon atoms.
When the aromatic rings represented by Ring A and Ring B are aromatic hydrocarbon rings, the aromatic hydrocarbon rings represented by Ring A and Ring B are preferably, for example, a benzene ring, a naphthalene ring, or an anthracene ring. , a benzene ring is more preferred.

When the aromatic ring represented by ring A and ring B is an aromatic heterocycle, the aromatic heterocycle represented by ring A and ring B is preferably a 5-membered ring or a 6-membered ring, and a 6-membered ring. A ring is more preferable.
When the aromatic ring represented by Ring A and Ring B is an aromatic heterocycle, the aromatic heterocycle represented by Ring A and Ring B has a group consisting of an oxygen atom, a sulfur atom, and a nitrogen atom in the ring. It is preferable that it is an aromatic heterocycle containing one or more types of heteroatoms selected from the following.
The heteroatom of the aromatic heterocycle is more preferably a nitrogen atom.
The number of heteroatoms in the aromatic heterocycle is preferably 1 or 2, more preferably 1.
When the aromatic ring represented by ring A and ring B is an aromatic heterocycle, examples of the aromatic heterocycle represented by ring A and ring B include a thiophene ring, a furan ring, a pyrrole ring, an imidazole ring, Examples include a triazole ring and a pyridine ring.
The aromatic heterocycle represented by ring A and ring B is preferably a thiophene ring, a furan ring, a pyrrole ring, or a pyridine ring, and more preferably a pyridine ring.

The compound represented by formula (1) is preferably a compound represented by the following formula (1-1), for example, from the viewpoint of more exerting the effects of the present disclosure.

The details of the compound represented by formula (1-1) will be explained.
R ^1a , R ^2a , R ^3a , R ^4a , R ^5a , R ^6a , R ^7a , R ^8a , R ^9a , R ^10a , R ^11a and R ^12a in formula (1-1) are each in formula (1) It has the same meaning as R ¹ , R ² , R ³ , R ⁴ , R ⁵ , R ⁶ , R ⁷ , R ⁸ , R ⁹ , R ¹⁰ , R ¹¹ and R ¹² , and the preferred embodiments are also the same, so here The explanation will be omitted.

n1 and n3 in formula (1-1) have the same meanings as n1 and n3 in formula (1), and preferred embodiments are also the same, so the explanation will be omitted here.
n2 and n4 in formula (1-1) have the same meanings as n2 and n4 in formula (1), and preferred embodiments are also the same, so the explanation will be omitted here.
When n2 is 2 or more, a plurality of R ^2a may be combined to form a ring.
When n4 is 2 or more, a plurality of R ^4a may be combined to form a ring.

X ¹ and X ² each independently represent a carbon atom or a nitrogen atom, and preferably a nitrogen atom.
X ¹ and X ² may be the same or different, but are preferably the same.

The cyclic oligosaccharide is not particularly limited and includes, for example, α-cyclodextrin, β-cyclodextrin, γ-cyclodextrin, 6-acrylamide-β-cyclodextrin, triacetyl-β-cyclodextrin, and trimethyl-β- Examples include cyclodextrin.
Among these, the cyclic oligosaccharide is preferably α-cyclodextrin, β-cyclodextrin, or γ-cyclodextrin, and more preferably β-cyclodextrin, from the viewpoint of availability.

Specific examples of the compound represented by formula (1) are described below, but the present disclosure is not limited by these examples.

[Guest molecule]
The guest molecule in the present disclosure is a squarylium compound represented by the following formula (2) (hereinafter also referred to as "specific squarylium compound").
When a tautomer and/or geometric isomer exists in the compound represented by formula (2), the existing tautomer and/or geometric isomer is different from the compound represented by formula (2). Included.
Note that the term "tautomer" refers to, for example, one compound that exists as two or more isomers that can be easily interconverted from one to the other. Examples of tautomers include isomers that occur when a proton bonded to one atom in a molecule moves to another atom, and isomers that have a localized electric charge on a specific atom in a molecule. Examples include isomers produced by migration to other atoms.

In formula (2), R ²¹ , R ²³ , R ²⁵ and R ²⁷ each independently represent a hydrogen atom or a substituent. R ²¹ and R ²³ , R ²³ and R ²⁵ , and R ²⁵ and R ²⁷ may each be bonded to form a ring. Ring C represents an aromatic ring. However, at least one of the substituents in formula (2) represents a group containing a polymerizable group having an ethylenically unsaturated bond.
Note that the "substituent in formula (2)" refers to the substituents in R ²¹ , R ²³ , R ²⁵ and R ²⁷ and the substituent substituted on ring C. Furthermore, in the present disclosure, a "polymerizable group having an ethylenically unsaturated bond" is also simply referred to as a "polymerizable group."

The details of the compound represented by formula (2) will be explained.
In a preferred embodiment of formula (2), R ²¹ , R ²³ and R ²⁵ each independently represent a hydrogen atom, a halogen group, an alkyl group, an aryl group, an alkoxy group, an aryloxy group, an acyl group, an alkoxycarbonyl group, or an aryl group. is an oxycarbonyl group, a carbamoyl group, an acylamino group, an alkoxycarbonylamino group, a carbamoylamino group, or a cyano group, ^R27 is a hydrogen atom, an alkyl group, or an aryl group, and ring C is an aromatic ring, and the formula ( At least one of the substituents in 2) is a group containing a polymerizable group having an ethylenically unsaturated bond.

The halogen group represented by R ²¹ , R ²³ and R ²⁵ is preferably, for example, a fluoro group, a chloro group or a bromo group.

The alkyl groups represented by R ²¹ , R ²³ and R ²⁵ may have a substituent or may not have a substituent.
The alkyl group represented by R ²¹ , R ²³ and R ²⁵ may be a linear alkyl group, a branched alkyl group, or an alkyl group having a cyclic structure.
The alkyl group represented by R ²¹ , R ²³ and R ²⁵ is preferably an alkyl group having 1 to 30 carbon atoms, more preferably an alkyl group having 1 to 12 carbon atoms.
Examples of the alkyl group represented by R ²¹ , R ²³ and R ²⁵ include methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, t-butyl group, n-octyl group, 2- Cyanoethyl group, benzyl group, 2-ethylhexyl group, allyl group, prenyl group, geranyl group, oleyl group, propargyl group, cyclohexyl group, cyclopentyl group, 2-hydroxyethyl group, 2-hydroxypropyl group, acetoxymethyl group, acryloyloxy A methyl group, a methacryloyloxymethyl group, an N-(2-acryloyloxyethyl)carbamoyloxymethyl group, or an N-(2-methacryloyloxyethyl)carbamoyloxymethyl group is preferable, and a methyl group or an ethyl group is more preferable. .

The aryl group represented by R ²¹ , R ²³ and R ²⁵ may have a substituent or no substituent.
The aryl group represented by R ²¹ , R ²³ and R ²⁵ is preferably an aryl group having 6 to 30 carbon atoms, more preferably 6 to 10 carbon atoms.
The aryl group represented by R ²¹ , R ²³ and R ²⁵ is preferably, for example, a phenyl group, a p-tolyl group or a naphthyl group.

The alkoxy group represented by R ²¹ , R ²³ and R ²⁵ may be a linear alkoxy group, a branched alkoxy group, or an alkoxy group having a cyclic structure.
The alkoxy group represented by R ²¹ , R ²³ and R ²⁵ is preferably an alkoxy group having 1 to 30 carbon atoms.
The alkoxy group represented by R ²¹ , R ²³ and R ²⁵ is preferably, for example, a methoxy group or an ethoxy group.

The aryloxy group represented by R ²¹ , R ²³ and R ²⁵ may have a substituent or not have a substituent.
The aryloxy group represented by R ²¹ , R ²³ and R ²⁵ is preferably an aryloxy group having 6 to 30 carbon atoms.
Examples of the aryloxy group represented by R ²¹ , R ²³ and R ²⁵ include phenoxy group, 2-methylphenoxy group, 4-tert-butylphenoxy group, 3-nitrophenoxy group or 2-tetradecanoylaminophenoxy group. Groups are preferred.

The acyl group represented by R ²¹ , R ²³ and R ²⁵ preferably has 2 to 30 carbon atoms, more preferably 2 to 15 carbon atoms.
The acyl group represented by R ²¹ , R ²³ and R ²⁵ is preferably, for example, an acetyl group, a propionyl group, a butyryl group, an isobutyryl group, a pivaloyl group, a benzoyl group or a 4-methoxybenzoyl group.

The alkoxycarbonyl group represented by R ²¹ , R ²³ and R ²⁵ is preferably an alkoxycarbonyl group in which the alkoxy moiety has 1 to 30 carbon atoms.
Examples of the alkoxycarbonyl group represented by R ²¹ , R ²³ and R ²⁵ include methoxycarbonyl group, ethoxycarbonyl group, 2-hydroxyethoxycarbonyl group, allyloxycarbonyl group, 3-butenyloxycarbonyl group, 2- Preferably, an acryloyloxyethoxycarbonyl group, a 2-methacryloyloxyethoxycarbonyl group, a 2-hydroxy-3-methacryloyloxypropyloxycarbonyl group, a 4-vinylbenzyloxycarbonyl group, or a 3-vinylbenzyloxycarbonyl group.

The aryloxycarbonyl group represented by R ²¹ , R ²³ and R ²⁵ may have a substituent or no substituent.
The aryloxycarbonyl group represented by R ²¹ , R ²³ and R ²⁵ is preferably an aryloxycarbonyl group in which the aryloxy moiety has 6 to 30 carbon atoms.
The aryloxycarbonyl group represented by R ²¹ , R ²³ and R ²⁵ is preferably, for example, phenoxycarbonyl or 4-methylphenoxycarbonyl.

The carbamoyl group represented by R ²¹ , R ²³ and R ²⁵ may have a substituent or may not have a substituent.
The carbamoyl group represented by R ²¹ , R ²³ and R ²⁵ is preferably a carbamoyl group having 1 to 30 carbon atoms, more preferably a carbamoyl group having 1 to 15 carbon atoms.
Examples of the carbamoyl group represented by R ²¹ , R ²³ and R ²⁵ include an unsubstituted carbamoyl group, N-methylcarbamoyl group, N-(2-hydroxyethyl)carbamoyl group, N-allylcarbamoyl group, N, N-diallylcarbamoyl group, N-(2-acryloyloxyethyl)carbamoyl group, N-(2-methacryloyloxyethyl)carbamoyl group, morpholinocarbonyl group, or N,N-bis(2-hydroxyethyl)carbamoyl group is preferred. .

The acylamino groups represented by R ²¹ , R ²³ and R ²⁵ may have a substituent or may not have a substituent.
The acylamino group represented by R ²¹ , R ²³ and R ²⁵ is preferably an acylamino group having 2 to 30 carbon atoms.
The acylamino group represented by R ²¹ , R ²³ and R ²⁵ is preferably, for example, an acetylamino group, a propionylamino group, an acryloylamino group or a methacryloylamino group.

The alkoxycarbonylamino group represented by R ²¹ , R ²³ and R ²⁵ may have a substituent or no substituent.
The alkoxycarbonylamino group represented by R ²¹ , R ²³ and R ²⁵ is preferably an alkoxycarbonylamino group in which the alkoxycarbonyl moiety has 2 to 30 carbon atoms.
The alkoxycarbonylamino group represented by R ²¹ , R ²³ and R ²⁵ is preferably, for example, a methoxycarbonylamino group or an ethoxycarbonylamino group.

The carbamoylamino group represented by R ²¹ , R ²³ and R ²⁵ may have a substituent or may not have a substituent.
The carbamoylamino group represented by R ²¹ , R ²³ and R ²⁵ is preferably a carbamoylamino group having 1 to 30 carbon atoms.
The carbamoylamino group represented by R ²¹ , R ²³ and R ²⁵ is, for example, an unsubstituted carbamoylamino group, an N,N-dimethylcarbamoylamino group, an N-(2-acryloyloxyethyl)carbamoylamino group, or N-(2-methacryloyloxyethyl)carbamoylamino group is preferred.

R ²¹ , R ²³ and R ²⁵ are each independently more preferably a hydrogen atom, an alkyl group or an alkoxycarbonyl group, for example, from the viewpoint of further improving the solubility in organic solvents and the below-mentioned polymerizable compound. , methyl group or ethyl group are particularly preferred.

R ²³ is preferably a group represented by the following formula (3).

The alkylene group represented by Q may be a linear alkylene group, a branched alkylene group, or an alkylene group having a cyclic structure.
The alkylene group represented by Q is preferably an alkylene group having 1 to 20 carbon atoms, more preferably an alkylene group having 1 to 8 carbon atoms.
The alkylene group represented by Q may be unsubstituted or may have a substituent such as a methyl group, ethyl group, or hydroxy group, and may be interrupted by an oxygen atom and/or a sulfur atom. It's okay.
Examples of the alkylene group represented by Q include methylene group, ethylene group, methylethylene group, n-propylene group, 2-hydroxypropylene group, tetramethylene group, hexamethylene group, octamethylene group, -(OCH ₂ CH ₂ ) _n - or -(OCH ₂ CHCH ₃ ) _n - is preferred. n represents an integer from 1 to 4.

The alkyl group represented by R ²⁹ may have a substituent or no substituent.
The alkyl group represented by R ²⁹ may be a linear alkyl group, a branched alkyl group, or an alkyl group having a cyclic structure.
The alkyl group represented by R ²⁹ is preferably an alkyl group having 1 to 8 carbon atoms.
The alkyl group represented by R ²⁹ is preferably, for example, a methyl group, ethyl group, n-propyl group, n-butyl group, hexyl group or n-octyl group.

The alkyl group represented by R ³⁰ may have a substituent or no substituent.
The alkyl group represented by R ³⁰ may be a linear alkyl group, a branched alkyl group, or an alkyl group having a cyclic structure.
The alkyl group represented by R ³⁰ is preferably an alkyl group having 1 to 8 carbon atoms.
The alkyl group represented by R ³⁰ is preferably, for example, a methyl group or a methoxymethyl group.
R ³⁰ is preferably a hydrogen atom or a methyl group, for example, from the viewpoint of further improving polymerization reactivity.

The alkyl group represented by R ²⁷ may have a substituent or no substituent.
The alkyl group represented by R ²⁷ may be a straight chain alkyl group, a branched alkyl group, or a cyclic structure.
The alkyl group represented by R ²⁷ is preferably an alkyl group having 1 to 22 carbon atoms.
Examples of the alkyl group represented by ^R27 include methyl group, ethyl group, n-propyl group, 2-methacryloyloxyethyl group, 3-methacryloyloxypropyl group, benzyl group, 4-fluorobenzyl group, and 4-vinyl group. A benzyl group or a 3-vinylbenzyl group is preferred.

The aryl group represented by R ²⁷ may have a substituent or no substituent.
The aryl group represented by R ²⁷ is preferably an aryl group having 6 to 20 carbon atoms, more preferably 6 to 10 carbon atoms.
The aryl group represented by R ²⁷ is preferably, for example, a phenyl group, 4-chlorophenyl group or 4-methoxyphenyl group.

R ²⁷ is preferably a hydrogen atom or an aryl group, for example, from the viewpoint of further improving solubility in organic solvents and the below-mentioned polymerizable compound.

R ²¹ and R ²³ , R ²³ and R ²⁵ , and R ²⁵ and R ²⁷ may each be bonded to form a ring.
The ring formed may be a saturated ring or an unsaturated ring.
The ring formed is preferably a 5- or 6-membered ring, more preferably a 5- or 6-membered unsaturated ring. The 5- or 6-membered ring may be further fused.
The ring to be formed is preferably, for example, a cyclopentene ring, a cyclohexene ring, or a benzene ring.

The aromatic ring represented by ring C may be an aromatic hydrocarbon ring or an aromatic heterocycle.
The aromatic ring represented by ring C may be monocyclic or polycyclic.
The aromatic ring represented by ring C may be formed by condensing two or more aromatic hydrocarbon rings, or may be formed by condensing two or more aromatic heterocycles. , one or more aromatic hydrocarbon rings and one or more aromatic heterocycles may be fused together.
The aromatic ring represented by ring C may or may not have a substituent.
When the aromatic ring represented by ring C is an aromatic hydrocarbon ring, the number of carbon atoms in the aromatic hydrocarbon ring is preferably 6 to 20, more preferably 6 to 10.
When the aromatic ring represented by ring C is an aromatic hydrocarbon ring, the aromatic hydrocarbon ring is preferably, for example, a benzene ring.
When the aromatic ring represented by ring C is an aromatic heterocycle, the aromatic heterocycle is preferably a 5-membered ring or a 6-membered ring.
When the aromatic ring represented by ring C is an aromatic heterocycle, the aromatic heterocycle contains at least one heteroatom selected from the group consisting of an oxygen atom, a sulfur atom, and a nitrogen atom in the ring. is preferable, it is more preferable that at least one hetero atom selected from a sulfur atom and a nitrogen atom is included, and it is even more preferable that a nitrogen atom is included.
When the aromatic ring represented by ring C is an aromatic heterocycle, the aromatic heterocycle is preferably, for example, a thiophene ring, an imidazole ring, or a pyridine ring.

At least one of the substituents in formula (2) represents a group containing a polymerizable group having an ethylenically unsaturated bond.
The polymerizable group having an ethylenically unsaturated bond is not particularly limited, and includes, for example, a vinyl group, (meth)allyl group, (meth)acryloyl group, (meth)acryloyloxy group, (meth)acryloylamino group, and Examples include vinylphenyl groups.

The group containing a polymerizable group having an ethylenically unsaturated bond is not particularly limited, but for example, a group containing a group represented by the following formula (4) or a group containing a group represented by the following formula (5). It is preferable that there be.

In formula (4), Y ^1a represents a single bond or an alkylene group.
The alkylene group represented by Y ^1a may be a linear alkylene group, a branched alkylene group, or an alkylene group having a cyclic structure.
The alkylene group represented by Y ^1a is preferably an alkylene group having 1 to 20 carbon atoms, more preferably an alkylene group having 1 to 8 carbon atoms.
The alkylene group represented by Y ^1a may be, for example, unsubstituted, or may have a substituent such as a methyl group, ethyl group, or hydroxy group, and may be interrupted by an oxygen atom and/or a sulfur atom. You can leave it there.
Examples of the alkylene group represented by Y ^1a include methylene group, ethylene group, methylethylene group, n-propylene group, 2-hydroxypropylene group, tetramethylene group, hexamethylene group, octamethylene group, -(OCH ₂ CH ₂ ) _n - or -(OCH ₂ CHCH ₃ ) _n - is preferred. n represents an integer from 1 to 4.

In formula (4), Y ^2a represents a single bond, -O- or -NR ³⁹ -, and R ³⁹ represents a hydrogen atom or an alkyl group.
The alkyl group represented by R ³⁹ may have a substituent or no substituent.
The alkyl group represented by R ³⁹ may be a linear alkyl group, a branched alkyl group, or an alkyl group having a cyclic structure.
The alkyl group represented by R ³⁹ is preferably an alkyl group having 1 to 8 carbon atoms.
The alkyl group represented by R ³⁹ is preferably, for example, a methyl group, ethyl group, n-propyl group, n-butyl group, hexyl group or n-octyl group.

In formula (4), R ⁴⁰ represents a hydrogen atom or an alkyl group.
The alkyl group represented by R ⁴⁰ may have a substituent or no substituent.
The alkyl group represented by R ⁴⁰ may be a linear alkyl group, a branched alkyl group, or an alkyl group having a cyclic structure.
The alkyl group represented by R ⁴⁰ is preferably an alkyl group having 1 to 8 carbon atoms.
The alkyl group represented by R ⁴⁰ is preferably, for example, a methyl group or a methoxymethyl group.
For example, R ⁴⁰ is preferably a hydrogen atom or a methyl group from the viewpoint of further improving polymerization reactivity.

In formula (5), R ⁴¹ , R ⁴² , R ⁴³ , R ⁴⁴ and R ⁴⁵ each independently represent a hydrogen atom, a halogen group, an alkyl group or an alkoxy group. However, at least one of R ⁴¹ , R ⁴² , R ⁴³ , R ⁴⁴ and R ⁴⁵ represents a vinyl group.

The halogen group represented by R ⁴¹ , R ⁴² , R ⁴³ , R ⁴⁴ and R ⁴⁵ is preferably a fluoro group, a chloro group, a bromo group or an iodo group, and more preferably a fluoro group, a chloro group or a bromo group. .

The alkyl groups represented by R ⁴¹ , R ⁴² , R ⁴³ , R ⁴⁴ and R ⁴⁵ may have a substituent or no substituent.
The alkyl group represented by R ⁴¹ , R ⁴² , R ⁴³ , R ⁴⁴ and R ⁴⁵ may be a straight chain alkyl group, a branched alkyl group, or an alkyl group having a cyclic structure. It may be.
The alkyl group represented by R ⁴¹ , R ⁴² , R ⁴³ , R ⁴⁴ and R ⁴⁵ is preferably an alkyl group having 1 to 8 carbon atoms.
The alkyl group represented by R ⁴¹ , R ⁴² , R ⁴³ , R ⁴⁴ and R ⁴⁵ is preferably, for example, a methyl group or an ethyl group.

The alkoxy group represented by R ⁴¹ , R ⁴² , R ⁴³ , R ⁴⁴ and R ⁴⁵ may be a straight chain alkoxy group, a branched alkoxy group, or an alkoxy group having a cyclic structure. It may be.
The alkoxy group represented by R ⁴¹ , R ⁴² , R ⁴³ , R ⁴⁴ and R ⁴⁵ is preferably an alkoxy group having 1 to 30 carbon atoms.
The alkoxy group represented by R ⁴¹ , R ⁴² , R ⁴³ , R ⁴⁴ and R ⁴⁵ is preferably, for example, a methoxy group, an ethoxy group or a methylenedioxy group.

At least one of R ⁴¹ , R ⁴² , R ⁴³ , R ⁴⁴ and R ⁴⁵ represents a vinyl group.
It is preferable that any one of R ⁴¹ , R ⁴² , R ⁴³ , R ⁴⁴ and R ⁴⁵ is a vinyl group, and the other four are hydrogen atoms.

In formula (5), Z represents a single bond or an alkylene group.
The alkylene group represented by Z may be a linear alkylene group, a branched alkylene group, or an alkylene group having a cyclic structure.
The alkylene group represented by Z is preferably an alkylene group having 1 to 20 carbon atoms, more preferably an alkylene group having 1 to 8 carbon atoms.
The alkylene group represented by Z may be unsubstituted or may have a substituent such as a methyl group, ethyl group, or hydroxy group, and may be interrupted by an oxygen atom and/or a sulfur atom. It's okay.
Examples of the alkylene group represented by Z include methylene group, ethylene group, methylethylene group, n-propylene group, 2-hydroxypropylene group, tetramethylene group, hexamethylene group, octamethylene group, -(OCH ₂ CH ₂ ) _n - or -(OCH ₂ CHCH ₃ ) _n - is preferred. n represents an integer from 1 to 4.

The specific squarylium compound [that is, the compound represented by formula (2)] is preferably a compound represented by the following formula (2-1), for example, from the viewpoint of more exerting the effects of the present disclosure.

The details of the compound represented by formula (2-1) will be explained.
In a preferred embodiment of formula (2-1), R ^21a , R ^22a , R ^23a , R ^24a , R ^25a and R ^26a each independently represent a hydrogen atom, a halogen group, an alkyl group, an aryl group, an alkoxy group, an aryl group. an oxy group, an acyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, a carbamoyl group, an acylamino group, an alkoxycarbonylamino group, a carbamoylamino group, or a cyano group, and R ^27a and R ^28a each independently represent a hydrogen atom, an alkyl group or aryl group, and at least one of R ^21a , R ^22a , R ^23a , R ^24a , R ^25a , R ^26a , R ^27a and R ^28a contains a polymerizable group having an ethylenically unsaturated bond. .
A more preferred embodiment of formula (2-1) is that R ^21a , R ^22a , R ^23a , R ^24a , R ^25a and R ^26a each independently represent a halogen group, an alkyl group, an aryl group, an alkoxy group, an aryloxy group. , an acyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, an acylamino group, an alkoxycarbonylamino group, a carbamoylamino group, or a cyano group, R ^27a and R ^28a are each independently a hydrogen atom or an alkyl group, and R At least one of ^21a , ^R22a , ^R23a , ^R24a , ^R25a , ^R26a , ^R27a and ^R28a contains a polymerizable group having an ethylenically unsaturated bond.

R ^21a , R ^23a , R ^25a and R ^27a in formula (2-1) have the same meanings as R ²¹ , R ²³ , R ²⁵ and R ²⁷ in formula (2), respectively, and preferred embodiments are also the same, so The explanation will be omitted here.

The halogen group represented by R ^22a , R ^24a and R ^26a is preferably, for example, a fluoro group, a chloro group or a bromo group.

The alkyl groups represented by R ^22a , R ^24a and R ^26a may have a substituent or may not have a substituent.
The alkyl group represented by R ^22a , R ^24a and R ^26a may be a linear alkyl group, a branched alkyl group, or an alkyl group having a cyclic structure.
The alkyl group represented by R ^22a , R ^24a and R ^26a is preferably an alkyl group having 1 to 30 carbon atoms, more preferably an alkyl group having 1 to 12 carbon atoms.
Examples of the alkyl group represented by R ^22a , R ^24a and R ^26a include methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, t-butyl group, n-octyl group, 2- Cyanoethyl group, benzyl group, 2-ethylhexyl group, allyl group, prenyl group, geranyl group, oleyl group, propargyl group, cyclohexyl group, cyclopentyl group, 2-hydroxyethyl group, 2-hydroxypropyl group, acetoxymethyl group, acryloyloxy A methyl group, a methacryloyloxymethyl group, an N-(2-acryloyloxyethyl)carbamoyloxymethyl group, or an N-(2-methacryloyloxyethyl)carbamoyloxymethyl group is preferable, and a methyl group or an ethyl group is more preferable. .

The aryl groups represented by R ^22a , R ^24a and R ^26a may have a substituent or may not have a substituent.
The aryl group represented by R ^22a , R ^24a and R ^26a preferably has 6 to 30 carbon atoms, more preferably 6 to 10 carbon atoms.
The aryl group represented by R ^22a , R ^24a and R ^26a is preferably, for example, a phenyl group, p-tolyl group or naphthyl group.

The alkoxy group represented by R ^22a , R ^24a and R ^26a may be a linear alkoxy group, a branched alkoxy group, or an alkoxy group having a cyclic structure.
The alkoxy group represented by R ^22a , R ^24a and R ^26a is preferably an alkoxy group having 1 to 30 carbon atoms.
The alkoxy group represented by R ^22a , R ^24a and R ^26a is preferably, for example, a methoxy group or an ethoxy group.

The aryloxy group represented by R ^22a , R ^24a and R ^26a may or may not have a substituent.
The aryloxy group represented by R ^22a , R ^24a and R ^26a is preferably an aryloxy group having 6 to 30 carbon atoms.
Examples of the aryloxy group represented by R ^22a , R ^24a and R ^26a include phenoxy group, 2-methylphenoxy group, 4-tert-butylphenoxy group, 3-nitrophenoxy group or 2-tetradecanoylaminophenoxy group. Groups are preferred.

The acyl group represented by R ^22a , R ^24a and R ^26a preferably has 2 to 30 carbon atoms, more preferably 2 to 15 carbon atoms.
The acyl group represented by R ^22a , R ^24a and R ^26a is preferably, for example, an acetyl group, a propionyl group, a butyryl group, an isobutyryl group, a pivaloyl group, a benzoyl group or a 4-methoxybenzoyl group.

The alkoxycarbonyl group represented by R ^22a , R ^24a and R ^26a is preferably an alkoxycarbonyl group in which the alkoxy moiety has 1 to 30 carbon atoms.
Examples of the alkoxycarbonyl group represented by R ^22a , R ^24a and R ^26a include methoxycarbonyl group, ethoxycarbonyl group, 2-hydroxyethoxycarbonyl group, allyloxycarbonyl group, 3-butenyloxycarbonyl group, 2- Preferably, an acryloyloxyethoxycarbonyl group, a 2-methacryloyloxyethoxycarbonyl group, a 2-hydroxy-3-methacryloyloxypropyloxycarbonyl group, a 4-vinylbenzyloxycarbonyl group, or a 3-vinylbenzyloxycarbonyl group.

The aryloxycarbonyl group represented by R ^22a , R ^24a and R ^26a may have a substituent or no substituent.
The aryloxycarbonyl group represented by R ^22a , R ^24a and R ^26a is preferably an aryloxycarbonyl group in which the aryloxy moiety has 6 to 30 carbon atoms.
The aryloxycarbonyl group represented by R ^22a , R ^24a and R ^26a is preferably, for example, phenoxycarbonyl or 4-methylphenoxycarbonyl.

The carbamoyl group represented by R ^22a , R ^24a and R ^26a may have a substituent or may not have a substituent.
The carbamoyl group represented by R ^22a , R ^24a and R ^26a is preferably a carbamoyl group having 1 to 30 carbon atoms, more preferably a carbamoyl group having 1 to 15 carbon atoms.
Examples of the carbamoyl group represented by R ^22a , R ^24a and R ^26a include unsubstituted carbamoyl group, N-methylcarbamoyl group, N-(2-hydroxyethyl)carbamoyl group, N-allylcarbamoyl group, N, N-diallylcarbamoyl group, N-(2-acryloyloxyethyl)carbamoyl group, N-(2-methacryloyloxyethyl)carbamoyl group, morpholinocarbonyl group, or N,N-bis(2-hydroxyethyl)carbamoyl group is preferred. .

The acylamino groups represented by R ^22a , R ^24a and R ^26a may have a substituent or no substituent.
The acylamino group represented by R ^22a , R ^24a and R ^26a is preferably an acylamino group having 2 to 30 carbon atoms.
The acylamino group represented by R ^22a , R ^24a and R ^26a is preferably, for example, an acetylamino group, a propionylamino group, an acryloylamino group or a methacryloylamino group.

The alkoxycarbonylamino group represented by R ^22a , R ^24a and R ^26a may have a substituent or no substituent.
The alkoxycarbonylamino group represented by R ^22a , R ^24a and R ^26a is preferably an alkoxycarbonylamino group in which the alkoxycarbonyl moiety has 2 to 30 carbon atoms.
The alkoxycarbonylamino group represented by R ^22a , R ^24a and R ^26a is preferably, for example, a methoxycarbonylamino group or an ethoxycarbonylamino group.

The carbamoylamino groups represented by R ^22a , R ^24a and R ^26a may have a substituent or may not have a substituent.
The carbamoylamino group represented by R ^22a , R ^24a and R ^26a is preferably a carbamoylamino group having 1 to 30 carbon atoms.
The carbamoylamino group represented by R ^22a , R ^24a and R ^26a is, for example, an unsubstituted carbamoylamino group, an N,N-dimethylcarbamoylamino group, an N-(2-acryloyloxyethyl)carbamoylamino group, or N-(2-methacryloyloxyethyl)carbamoylamino group is preferred.

R ^22a , R ^24a and R ^26a are each independently more preferably a hydrogen atom, an alkyl group or an alkoxycarbonyl group, for example, from the viewpoint of further improving the solubility in organic solvents and the below-mentioned polymerizable compound. , methyl group or ethyl group are particularly preferred.

The alkyl group represented by R ^28a may have a substituent or no substituent.
The alkyl group represented by R ^28a may be a straight-chain alkyl group, a branched alkyl group, or an alkyl group having a cyclic structure.
The alkyl group represented by R ^28a is preferably an alkyl group having 1 to 22 carbon atoms.
Examples of the alkyl group represented by R ^28a include methyl group, ethyl group, n-propyl group, 2-methacryloyloxyethyl group, 3-methacryloyloxypropyl group, benzyl group, 4-fluorobenzyl group, and 4-vinyl group. Benzyl group or 3-vinylbenzyl group is preferred.

The aryl group represented by R ^28a may have a substituent or no substituent.
The aryl group represented by R ^28a is preferably an aryl group having 6 to 20 carbon atoms, more preferably 6 to 10 carbon atoms.
The aryl group represented by R ^28a is preferably, for example, a phenyl group, 4-chlorophenyl group or 4-methoxyphenyl group.

From the viewpoint of heat and humidity resistance and solvent resistance, at least one of R ^23a and R ^24a is preferably a group represented by the above formula (3).
Since the group represented by formula (3) is as described above, the description thereof will be omitted here.

R ^21a and R ^23a , R ^22a and R ^24a , R ^23a and R ^25a , R ^24a and R ^26a , R ^25a and R ^27a , and R ^26a and R ^28a may each be combined to form a ring. .
The ring formed may be a saturated ring or an unsaturated ring.
The ring formed is preferably a 5- or 6-membered ring, more preferably a 5- or 6-membered unsaturated ring. The 5- or 6-membered ring may be further fused.
The ring to be formed is preferably, for example, a cyclopentene ring, a cyclohexene ring, or a benzene ring.

At least one of R ^21a , R ^22a , R ^23a , R ^24a , R ^25a , R ^26a , R ^27a and R ^28a represents a group containing a polymerizable group having an ethylenically unsaturated bond.
The polymerizable group having an ethylenically unsaturated bond is not particularly limited, and includes, for example, a vinyl group, (meth)allyl group, (meth)acryloyl group, (meth)acryloyloxy group, (meth)acryloylamino group, and Examples include vinylphenyl groups.

The group containing a polymerizable group having an ethylenically unsaturated bond is not particularly limited, but may be, for example, a group containing a group represented by formula (4) or a group containing a group represented by formula (5). is preferred.
Since the group containing the group represented by formula (4) or the group containing the group represented by formula (5) is as described above, the explanation thereof will be omitted here.

In a certain embodiment of the compound represented by formula (2-1), R ^21a is a hydrogen atom or an unsubstituted alkyl group, R ^22a is a hydrogen atom or an unsubstituted alkyl group, and R ^23a is an ethylenic A group containing a polymerizable group having an unsaturated bond, R ^24a is a group containing a polymerizable group having an ethylenically unsaturated bond, and R ^25a is a hydrogen atom, an unsubstituted alkyl group, or an unsubstituted aryl group. and R ^26a is a hydrogen atom, an unsubstituted alkyl group, or an optionally substituted aryl group, R ^27a is an unsubstituted alkyl group, and R ^28a is an unsubstituted alkyl group.
Further, in a certain embodiment of the compound represented by formula (2-1), R ^21a is a hydrogen atom or an unsubstituted alkyl group, R ^22a is a hydrogen atom or an unsubstituted alkyl group, and R ^23a is is an unsubstituted alkyl group, R ^24a is an unsubstituted alkyl group, R ^25a is a group containing a polymerizable group having an ethylenically unsaturated bond, and R ^26a is a polymerizable group having an ethylenically unsaturated bond. R ^27a is an unsubstituted alkyl group, and R ^28a is an unsubstituted alkyl group.
Further, in a certain embodiment of the compound represented by formula (2-1), R ^21a is a hydrogen atom or an unsubstituted alkyl group, R ^22a is a hydrogen atom or an unsubstituted alkyl group, and R ^23a is is an unsubstituted alkyl group, R ^24a is an unsubstituted alkyl group, R ^25a is a hydrogen atom, an unsubstituted alkyl group, or an unsubstituted aryl group, R ^26a is a hydrogen atom, an unsubstituted alkyl group, or an optionally substituted aryl group, R ^27a is a group containing a polymerizable group having an ethylenically unsaturated bond, and R ^28a is a group containing a polymerizable group having an ethylenically unsaturated bond. be.

In a preferred embodiment of the compound represented by formula (2-1), R ^21a is an unsubstituted alkyl group, R ^22a is an unsubstituted alkyl group, and R ^23a is an unsubstituted alkyl group or a compound represented by the formula (4 ), R ^24a is an unsubstituted alkyl group or a group containing a group represented by formula (4), R ^25a is an unsubstituted alkyl group, and R ^26a is an unsubstituted alkyl group. , is an unsubstituted alkyl group, R ^27a is a hydrogen atom or a group containing a group represented by formula (5), and R ^28a is a hydrogen atom or a group containing a group represented by formula (5) This is a certain aspect.
Further, in a more preferred embodiment of the compound represented by formula (2-1), R ^21a is an unsubstituted alkyl group having 1 to 4 carbon atoms, and R ^22a is an unsubstituted alkyl group having 1 to 4 carbon atoms. and R ^23a is a methyl group, an ethyl group, or a group containing a group represented by formula (4), and R ^24a is a methyl group, an ethyl group, or a group containing a group represented by formula (4). , R ^25a is a hydrogen atom or a methyl group, R ^26a is a hydrogen atom or a methyl group, R ^27a is a group containing a group represented by formula (5), and R ^28a is, This embodiment is a group containing a group represented by formula (5).

Specific examples of the specific squarylium compound (ie, the compound represented by formula (2)) are described below, but the present disclosure is not limited to these examples. Note that "Me" represents a methyl group, "Et" represents an ethyl group, and "tBu" represents a t-butyl group (the same applies hereinafter).

The maximum absorption wavelength of the specific squarylium compound is preferably within the range of 550 nm to 610 nm, more preferably within the range of 555 nm to 605 nm.

The molar extinction coefficient at the maximum absorption wavelength of the specific squarylium compound is preferably 20,000 L/(mol cm) or more, more preferably 50,000 L/(mol cm) or more, and 100,000 L/cm. (mol·cm) or more is more preferable. The upper limit is not particularly limited, and may be, for example, 2,000,000 L/(mol·cm) or less.

In the visible absorption spectrum of the specific squarylium compound, the width of the absorption spectrum at the absorbance corresponding to 1/2 of the maximum absorbance (so-called half width) is preferably 60 nm or less, more preferably 40 nm or less. The lower limit is not particularly limited, and may be, for example, 5 nm or more.
Further, in the visible absorption spectrum of the specific squarylium compound, the width of the absorption spectrum at an absorbance corresponding to 1/8 of the maximum absorbance is preferably 100 nm or less, more preferably 80 nm or less. The lower limit is not particularly limited, and may be, for example, 10 nm or more.

The above maximum absorption wavelength, molar extinction coefficient, and absorption spectrum width are values measured using a spectrophotometer.

The specific squarylium compound has a characteristic of being excellent in solubility in organic solvents and the below-mentioned polymerizable compounds. For example, the specific squarylium compound preferably has a solubility in ethyl acetate at 40° C. of 0.1% by mass or more, more preferably 1% by mass or more. The upper limit is not particularly limited, and may be, for example, 70% by mass or less.

The molecular weight of the specific squarylium compound is not particularly limited, but is preferably from 300 to 1,000, more preferably from 400 to 800, for example.

[Method for producing clathrate compound]
The method for producing an clathrate compound according to the present disclosure (hereinafter also referred to as "the production method according to the present disclosure") is not particularly limited. The compound according to the present disclosure can be suitably produced, for example, by the production method according to the present disclosure shown below.
Exemplary embodiments (first embodiment, second embodiment, and third embodiment) of the manufacturing method according to the present disclosure will be described.

<First embodiment>
In the manufacturing method according to the first embodiment, a compound represented by the following formula (6) and an aromatic compound are reacted in a solvent containing alcohol to obtain a compound represented by the above formula (2). The method includes a step (also referred to as "Step 1A") and a step (also referred to as "Step 1B") of including the compound represented by the above formula (2) in a host molecule.

(Step 1A)
Step 1A is a step in which a compound represented by formula (6) and an aromatic compound are reacted in a solvent containing alcohol to obtain a compound represented by formula (2).
R ^21b , R ^23b , R ^25b and R ^27b in formula (6) have the same meanings as R ²¹ , R ²³ , R ²⁵ and R ²⁷ in formula (2), respectively, and preferred embodiments are also the same, so here The explanation will be omitted. In addition, from the viewpoint of manufacturability, it is preferable that at least one of R ^23b and R ^27b is a group containing a polymerizable group having an ethylenically unsaturated bond.

The aromatic compound may be an aromatic hydrocarbon compound or a heteroaromatic compound.
The aromatic compound may be appropriately selected depending on the desired structure of the compound represented by formula (2).

In step 1A, the compound represented by formula (6) and an aromatic compound are reacted in a solvent containing alcohol.
The number of alcohols contained in the solvent may be one, or two or more.
The alcohol is not particularly limited, but is preferably a monohydric alcohol, such as methanol, ethanol, 1-propanol, 2-propanol, 1-butanol, 2-methylpropyl alcohol, 2-butanol, 1-pentanol. More preferably, it is at least one selected from the group consisting of , and 2-pentanol.
Among these, from the viewpoint of boiling point, the alcohol is preferably at least one selected from the group consisting of 1-butanol, 2-methylpropyl alcohol, 2-butanol, 1-pentanol, and 2-pentanol. . In addition, for compounds that may undergo solvolysis, such as compounds having an alkoxycarbonyl group, secondary alcohols, i.e., selected from the group consisting of 2-propanol, 2-butanol, and 2-pentanol, may be used. It is preferable to use at least one kind.

The solvent in which the compound represented by formula (6) and the aromatic compound are reacted may contain only alcohol, but may also contain a solvent other than alcohol (so-called other solvent).
The other solvents are preferably hydrophobic solvents, more preferably at least one selected from the group consisting of aliphatic hydrocarbon solvents and aromatic hydrocarbon solvents, and at least one selected from aromatic hydrocarbon solvents. is even more preferable.
Among the aromatic hydrocarbon solvents, at least one selected from the group consisting of benzene, toluene and xylene (e.g. o-xylene, m-xylene and p-xylene) is preferred, with toluene being more preferred. preferable.

The reaction ratio between the compound represented by formula (6) and the aromatic compound can be appropriately set depending on the desired structure of the compound represented by formula (2).
For example, the reaction ratio of the compound represented by formula (6) and the aromatic compound [compound represented by formula (6): aromatic compound] is 1.0:0.9 to 1.0:1. .1 is preferred.

The reaction temperature is not particularly limited, but is preferably from room temperature (25°C) to the boiling point of the reaction solvent, more preferably from 60°C to the boiling point of the reaction solvent, and even more preferably from the boiling point of the reaction solvent. preferable.
The reaction time is not particularly limited, and can be, for example, 1 hour to 24 hours.

It is preferable that the reaction between the compound represented by formula (6) and the aromatic compound is carried out under reflux of an organic solvent, and the produced water is azeotropically dehydrated.

In step 1A, for example, by controlling conditions such as the reaction ratio of the compound represented by formula (6) and the aromatic compound and the reaction time, a compound represented by formula (2) with a desired structure is prepared. can be manufactured.

(Process 1B)
Step 1B is a step of including the compound represented by formula (2) in the host molecule.
The method for including the compound represented by formula (2) in the host molecule is not particularly limited.
For example, when the host molecule is a compound represented by formula (1), a method for including the compound represented by formula (2) in the host molecule is to include the compound represented by formula (2) and the dicarboxylic compound represented by formula (2). A method (hereinafter referred to as "Method ) is preferred.

The base in Method X may be an organic base or an inorganic base, but is preferably an organic base.
The organic base is not particularly limited, and examples thereof include triethylamine, pyridine, 2,6-lutidine, and DBU (1,8-diazabicyclo[5.4.0]undec-7-ene).
The organic solvent in Method X is not particularly limited, and examples thereof include chloroform, dichloromethane, toluene, ethyl acetate, dimethylformamide, and tetrahydrofuran.
Among these, chloroform is preferred as the organic solvent in Method X.

In Method X, the temperature during stirring and mixing is not particularly limited, but is preferably -80°C to 200°C, more preferably 20°C to 100°C.
In Method X, the stirring and mixing time is not particularly limited, but is preferably, for example, 1 hour to 72 hours.

For the specific operation of Method X, the method described in the Examples below can be referred to.

For example, when the host molecule is a cyclic oligosaccharide, a method for including the compound represented by formula (2) in the host molecule is to combine the compound represented by formula (2) and the cyclic oligosaccharide with an organic A method of stirring and mixing in a solvent (hereinafter also referred to as "method Y") is preferred.

Organic solvents in Method Y include, for example, chloroform, dichloromethane, toluene, ethyl acetate, dimethylformamide, tetrahydrofuran, methanol, ethanol, isopropanol, and acetonitrile.
Among these, chloroform is preferred as the organic solvent in Method Y.

In Method Y, the temperature during stirring and mixing is not particularly limited, but is preferably -80°C to 200°C, more preferably 20°C to 100°C.
In method Y, the stirring and mixing time is not particularly limited, but is preferably, for example, 1 hour to 72 hours.

For the specific operation of method Y, reference can be made to the method described in Examples below.

<Second embodiment>
The manufacturing method according to the second embodiment is an example of a suitable manufacturing method when the compound according to the present disclosure is a compound represented by formula (2-1).
In the production method according to the second embodiment, a compound represented by the following formula (6) and a compound represented by the following formula (7) are reacted in a solvent containing alcohol, and the above formula (2-1 ) (also referred to as "Step 2A"), and a step of including the compound represented by the above formula (2-1) in a host molecule (also referred to as "Step 2B"). ,including.

(Step 2A)
Step 2A is a step in which a compound represented by formula (6) and a compound represented by formula (7) are reacted in a solvent containing alcohol to obtain a compound represented by formula (2-1). be.
R ^21b , R ^22b , R ^23b , R ^24b , R ^25b , R ^26b , R ^27b and R ^28b in formula (6) and formula (7) are R ^21a , R ^22a , R in formula (2-1), respectively ^23a , R ^24a , R ^25a , R ^26a , R ^27a and R ^28a , and preferred embodiments are also the same, so the explanation will be omitted here.
In addition, from the viewpoint of manufacturability, it is preferable that at least one of R ^23b , R ^24b , R ^27b and R ^28b is a group containing a polymerizable group having an ethylenically unsaturated bond. Further, from the same viewpoint, at least one of R ^21b , R ^23b , R ^25b and R ^27b and at least one of R ^22b , R ^24b , R ^26b and R ^28b are polymerizable groups having an ethylenically unsaturated bond. It is also preferable that it is a group containing.

In step 2A, the compound represented by formula (6) and the compound represented by formula (7) are reacted in a solvent containing alcohol.
The solvent in which the compound represented by formula (6) and the compound represented by formula (7) are reacted contains alcohol. The number of alcohols contained in the solvent may be one, or two or more.
The alcohol in step 2A has the same meaning as the alcohol in step 1A of the manufacturing method according to the first embodiment, and the preferred embodiments are also the same, so the explanation will be omitted here.

The solvent in which the compound represented by formula (6) and the compound represented by formula (7) are reacted may contain only alcohol, but it may also contain a solvent other than alcohol (so-called other solvent). You can stay there.
The other solvents in step 2A have the same meaning as the other solvents in step 1A of the manufacturing method according to the first embodiment, and the preferred embodiments are also the same, so the explanation will be omitted here.

The reaction ratio between the compound represented by formula (6) and the compound represented by formula (7) can be appropriately set depending on the desired structure of the compound represented by formula (2-1).
For example, the reaction ratio of the compound represented by formula (6) and the compound represented by formula (7) [compound represented by formula (6): compound represented by formula (7)] is 1. The ratio is preferably 0:0.9 to 1.0:1.1.

The reaction temperature and reaction time in step 2A are synonymous with the reaction temperature and reaction time in step 1A of the manufacturing method according to the first embodiment, and the preferred embodiments are also the same, so the explanation will be omitted here.

It is preferable that the reaction between the compound represented by formula (6) and the compound represented by formula (7) is carried out under reflux of an organic solvent, and the resulting water is azeotropically dehydrated.

In step 2A, for example, by controlling conditions such as the reaction ratio of the compound represented by formula (6) and the compound represented by formula (7), and the reaction time, a desired structural formula (2- A compound represented by 1) can be produced.

(Process 2B)
Step 2B is a step of including the compound represented by formula (2-1) in the host molecule.
Step 2B is the same as Step 1B of the production method according to the first embodiment, except that the compound to be included is a compound represented by formula (2-1), and the preferred embodiments are also the same. , the explanation is omitted here.

<Third embodiment>
The manufacturing method according to the third embodiment is also an example of a suitable manufacturing method when the compound according to the present disclosure is a compound represented by formula (2-1).
In the production method according to the third embodiment, a compound represented by the following formula (8) and a compound represented by the following formula (9) are reacted in a solvent containing alcohol, and the above formula (2-1 ) (also referred to as "Step 3A"), and a step of including the compound represented by the above formula (2-1) in a host molecule (also referred to as "Step 3B"). ,including.

(Step 3A)
Step 3A is a step in which a compound represented by formula (8) and a compound represented by formula (9) are reacted in a solvent containing alcohol to obtain a compound represented by formula (2-1). be.
R ^21c , R ^23c , R ^25c and R ^27c in formula (8) have the same meanings as R ^21a , R ^23a , R ^25a and R ^27a in formula (2-1), respectively, and preferred embodiments are also the same, so The explanation will be omitted here.
Note that from the viewpoint of manufacturability, it is preferable that at least one of R ^23c and R ^27c is a group containing a polymerizable group having an ethylenically unsaturated bond.

In step 3A, the compound represented by formula (8) and the compound represented by formula (9) are reacted in a solvent containing alcohol.
The solvent in which the compound represented by formula (8) and the compound represented by formula (9) are reacted contains alcohol. The number of alcohols contained in the solvent may be one, or two or more.
The alcohol in step 3A has the same meaning as the alcohol in step 1A of the manufacturing method according to the first embodiment, and the preferred embodiments are also the same, so the explanation will be omitted here.

The solvent in which the compound represented by formula (8) and the compound represented by formula (9) are reacted may contain only alcohol, but it may also contain a solvent other than alcohol (so-called other solvent). You can stay there.
The other solvents in step 3A have the same meaning as the other solvents in step 1A of the manufacturing method according to the first embodiment, and the preferred embodiments are also the same, so the explanation will be omitted here.

The reaction ratio between the compound represented by formula (8) and the compound represented by formula (9) can be appropriately set depending on the desired structure of the compound represented by formula (2-1).

The reaction temperature and reaction time in step 3A are synonymous with the reaction temperature and reaction time in step 1A of the manufacturing method according to the first embodiment, and the preferred embodiments are also the same, so the explanation will be omitted here.

The reaction between the compound represented by formula (8) and the compound represented by formula (9) is preferably carried out under reflux of an organic solvent, while azeotropically dehydrating the water produced.

In step 3A, for example, by controlling conditions such as the reaction ratio of the compound represented by formula (8) and the compound represented by formula (9), and the reaction time, a desired structural formula (2- A compound represented by 1) can be produced.

(Process 3B)
Step 3B is a step of including the compound represented by formula (2-1) in the host molecule.
Step 3B is synonymous with Step 1B of the manufacturing method according to the first embodiment, except that the compound to be included is a compound represented by formula (2-1), and the preferred embodiments are also the same. , the explanation is omitted here.

<Application>
Since the clathrate compound according to the present disclosure has a maximum absorption wavelength near 600 nm (particularly 550 nm to 610 nm), it can be suitably used as a material for blocking light in the wavelength range near 600 nm. Here, "blocking light in the wavelength range around 600nm" means completely blocking light in the wavelength range around 600nm, and partially blocking light in the wavelength range around 600nm, and blocking light in the wavelength range around 600nm. This means that the transmittance of light in the wavelength range is reduced.
The clathrate compound according to the present disclosure can be suitably used, for example, in optical members such as optical filters (eg, color correction filters for displays) and lenses for eyeglasses.
The clathrate compound according to the present disclosure is excellent in selectively absorbing light in a wavelength range with poor color purity that passes through a color filter. The correction filter can provide excellent color reproducibility without reducing the brightness of the display.

[Polymerizable composition]
The polymerizable composition according to the present disclosure includes the clathrate compound according to the present disclosure and a polymerizable compound.
According to the polymerizable composition according to the present disclosure, when a cured product is formed by a polymerization reaction, the specific squarylium compound is immobilized in the cured product in a state where it is included in host molecules. A cured film in which wet thermal decomposition of is suppressed can be obtained. Moreover, according to the polymerizable composition according to the present disclosure, a cured product in which bleedout of the specific squarylium compound is suppressed can be obtained for the same reason as above.

[Inclusion compound according to the present disclosure]
The polymerizable composition according to the present disclosure includes the clathrate compound according to the present disclosure.
The details of the clathrate compound according to the present disclosure are as described above, so the explanation will be omitted.

The polymerizable composition according to the present disclosure may contain only one type of clathrate compound according to the present disclosure, or may contain two or more types.

The content of the clathrate compound according to the present disclosure in the polymerizable composition according to the present disclosure is not particularly limited, and can be appropriately set depending on the purpose.
The content of the clathrate compound according to the present disclosure in the polymerizable composition according to the present disclosure is, for example, preferably 0.001% by mass to 90% by mass with respect to the total solid mass of the polymerizable composition. . The lower limit is more preferably 0.005% by mass or more, and even more preferably 0.01% by mass or more. The upper limit is more preferably 85% by mass or less, and even more preferably 50% by mass or less.

[Polymerizable compound]
The polymerizable composition according to the present disclosure includes a polymerizable compound (excluding a specific squarylium compound). 〕including.
The polymerizable compound is not particularly limited as long as it is a compound that can be polymerized and hardened by energy application. As the polymerizable compound, known polymerizable compounds can be used.
The polymerizable compound is preferably a compound having a polymerizable group.
The polymerizable group is preferably a group having an ethylenically unsaturated bond.
Specific examples of the polymerizable group include a vinyl group, (meth)allyl group, (meth)acryloyl group, (meth)acryloyloxy group, (meth)acryloylamino group, and vinylphenyl group.
The polymerizable compound is preferably a compound having one or more terminal ethylenically unsaturated bonds.

The polymerizable compound may be, for example, a monomer (i.e., a monomer), a prepolymer (i.e., a dimer, trimer, or oligomer), or a mixture of a monomer and a prepolymer. It may be a (co)polymer of monomers, a (co)polymer of prepolymers, or a copolymer of a monomer and a prepolymer.
Examples of the monomer include unsaturated carboxylic acids, esters of unsaturated carboxylic acids, and amides of unsaturated carboxylic acids.
Specific examples of unsaturated carboxylic acids include (meth)acrylic acid, itaconic acid, crotonic acid, isocrotonic acid, and maleic acid.

The polymerizable compound is preferably at least one selected from the group consisting of (meth)acrylic acid, (meth)acrylic amide compounds, (meth)acrylic ester compounds, and styrene compounds.

Specific examples of (meth)acrylamide compounds include (meth)acrylamide, N,N,-dimethylacrylamide, N-isopropylacrylamide, methylenebis(acrylamide), 2-acrylamido-2-methylpropanesulfonic acid, and N-(3-dimethylaminopropyl)methacrylamide is mentioned.

Specific examples of (meth)acrylic acid ester compounds include methyl (meth)acrylate, ethyl (meth)acrylate, n-butyl (meth)acrylate, 2-hydroxyethyl (meth)acrylate, glycidyl (meth)acrylate, and benzyl (meth)acrylate. meth)acrylate, 2-(2-phenoxy)ethyl(meth)acrylate, 2-ethylhexyl(meth)acrylate, n-octyl(meth)acrylate, isooctyl(meth)acrylate, n-nonyl(meth)acrylate, isononyl(meth)acrylate ) acrylate, n-decyl (meth)acrylate, isodecyl (meth)acrylate, n-dodecyl (meth)acrylate, n-tridecyl (meth)acrylate, n-tetradecyl (meth)acrylate, n-hexadecyl (meth)acrylate, stearyl (meth)acrylate, isobornyl (meth)acrylate, dicyclopentenyl (meth)acrylate, dicyclopentanyl (meth)acrylate, dicyclopentenyloxyethyl (meth)acrylate, 1-hydroxyheptyl (meth)acrylate, 1-hydroxy Butyl (meth)acrylate, 1-hydroxypentyl, 2-hydroxybutyl (meth)acrylate, ethylene glycol diacrylate, ethylene glycol dimethacrylate, polyethylene glycol diacrylate, polyethylene glycol dimethacrylate, ethoxylated bisphenol A diacrylate, ethoxylated bisphenol A dimethacrylate, ethoxylated trimethylolpropane triacrylate, ethoxylated trimethylolpropane trimethacrylate, ethoxylated glycerin triacrylate, ethoxylated glycerin trimethacrylate, ethoxylated pentaerythritol tetraacrylate, ethoxylated pentaerythritol tetramethacrylate, ethoxylated dipenta Erythritol hexaacrylate, polyglycerin monoethylene oxide polyacrylate, polyglycerin polyethylene glycol polyacrylate, dipentaerythritol hexaacrylate, dipentaerythritol hexamethacrylate, neopentyl glycol diacrylate, neopentyl glycol dimethacrylate, pentaerythritol triacrylate, pentaerythritol Trimethacrylate, trimethylolpropane triacrylate, trimethylolpropane trimethacrylate, tricyclodecanedimethanol diacrylate, tricyclodecanedimethanol dimethacrylate, 1,6-hexanediol diacrylate, and 1,6-hexanediol dimethacrylate Can be mentioned.

Specific examples of styrene compounds include styrene, methylstyrene, dimethylstyrene, trimethylstyrene, ethylstyrene, fluorostyrene, chlorostyrene, methoxystyrene, tert-butoxystyrene, and divinylbenzene.

For details on how to use the polymerizable compound, such as what kind of structure the polymerizable compound has, whether to use it alone, whether to use two or more types in combination, and how much to use, etc. , can be arbitrarily set according to the final performance design of the polymerizable composition.
For example, from the viewpoint of sensitivity, the polymerizable compound is preferably a compound having a structure with a large amount of polymerizable groups per molecule, and in most cases, a bifunctional or higher functional compound is preferable.
For example, from the viewpoint of film strength, a trifunctional or higher functional compound (for example, a hexafunctional (meth)acrylic acid ester compound) may be used as the polymerizable compound.
For example, it is also effective to select a polymerizable compound in consideration of compatibility, dispersibility, etc. with each component contained in the composition.
As the polymerizable compound, compounds having different functional numbers and/or different polymerizable groups (for example, (meth)acrylic acid ester compounds, styrene compounds, and vinyl ether compounds) may be used in combination.

The molecular weight of the polymerizable compound is not particularly limited, but is preferably from 100 to 3,000, more preferably from 100 to 2,600, and even more preferably from 100 to 2,200.

The polymerizable composition according to the present disclosure may contain only one kind of polymerizable compound, or may contain two or more kinds of polymerizable compounds.

The content of the polymerizable compound in the polymerizable composition according to the present disclosure is not particularly limited, but is preferably 30% by mass or more and less than 100% by mass based on the total solid mass of the polymerizable composition. , more preferably 50% by mass or more and less than 100% by mass, and even more preferably 60% by mass or more and less than 100% by mass.

[Polymerization initiator]
The polymerizable composition according to the present disclosure can further include a polymerization initiator.
The polymerization initiator is not particularly limited as long as it is a compound that can generate initiating species necessary for the polymerization reaction upon application of energy. As the polymerization initiator, known polymerization initiators can be used.
Examples of the polymerization initiator include photopolymerization initiators and thermal polymerization initiators.

The photopolymerization initiator is preferably one that is sensitive to light in the ultraviolet to visible range, for example. Further, the photopolymerization initiator may be an activator that generates active radicals by having some effect with the photoexcited sensitizer.

Examples of photopolymerization initiators include halogenated hydrocarbon derivatives (e.g., compounds having a triazine skeleton and compounds having an oxadiazole skeleton), acylphosphine compounds, hexaarylbiimidazole, oxime compounds (e.g., oxime ester compounds). ), organic peroxides, thio compounds (eg, thioxanthone compounds), ketone compounds, aromatic onium salts, aminoacetophenone compounds, and hydroxyacetophenone compounds.
Examples of the acylphosphine compound include acylphosphine initiators described in Japanese Patent No. 4225898.
Examples of oxime compounds include the compounds described in JP-A No. 2001-233842, the compounds described in JP-A No. 2000-080068, the compounds described in JP-A No. 2006-342166, and the compounds described in JP-A No. 2016-006475. Examples include compounds described in paragraphs [0073] to [0075] of the publication. Among the oxime compounds, oxime ester compounds are preferred.
Examples of the aminoacetophenone compound include the compounds described in JP-A-2009-191179 and the aminoacetophenone-based initiators described in JP-A-10-291969.

Examples of the thermal polymerization initiator include azo compounds, organic peroxides, and inorganic peroxides.
Specific examples of azo compounds include 2,2'-azobis(isobutyric acid) dimethyl, 2,2'-azobisisobutyronitrile, 2,2'-azobis(2,4-dimethyl-4-methoxyvalero) nitrile), 2,2'-azobis(2,4-dimethylvaleronitrile), dimethyl-2,2'-azobis(2-methylpropionate), 2,2'-azobis(2-methylbutyronitrile) , 1,1'-azobis(cyclohexane-1-carbonitrile), 2,2'-azobis(N-butyl-2-methylpropionamide), dimethyl-1,1'-azobis(1-cyclohexanecarboxylate), and 2,2'-azobis[2-(2-imidazolin-2-yl)propane] dihydrochloride.
Specific examples of organic peroxides include 1,1-di(tert-hexylperoxy)cyclohexane, 1,1-di(tert-butylperoxy)cyclohexane, 2,2-di(4,4-di(tert) -butylperoxy)cyclohexyl)propane, tert-hexylperoxyisopropyl monocarbonate, tert-butylperoxy-3,5,5-trimethylhexanoate, tert-butylperoxylaurate, dicumyl peroxide, di-tert-butyl peroxide, Mention may be made of tert-butylperoxy-2-ethylhexanoate, tert-hexylperoxy-2-ethylhexanoate, cumene hydroperoxide, and tert-butyl hydroperoxide.
Specific examples of inorganic peroxides include potassium persulfate, ammonium persulfate, and hydrogen peroxide.

The polymerization initiator may be a synthetic product or a commercially available product.
Examples of commercially available photopolymerization initiators include IRGACURE (registered trademark) OXE01 (manufactured by BASF), TR-PBG-304 (manufactured by Changzhou Strong Electronics New Materials Co., Ltd.), and ADEKA ARCURE (registered trademark) (Trademark) NCI-831, and Adeka Arcles (registered trademark) NCI-930 (all manufactured by ADEKA).
In addition, examples of commercially available photopolymerization initiators that are hydroxyacetophenone compounds include Omnirad (registered trademark) 184, Omnirad (registered trademark) 1173, Omnirad (registered trademark) 2959, and Omnirad (registered trademark) 127 [above, IGM Resins B. V. Company-made].
Examples of commercially available photopolymerization initiators that are aminoacetophenone compounds include Omnirad (registered trademark) 907, Omnirad (registered trademark) 369, Omnirad (registered trademark) 369E, and Omnirad (registered trademark) 379EG [above, IGM Resins B. V. Company-made].
Examples of commercially available photopolymerization initiators that are acylphosphine compounds include Omnirad (registered trademark) 819 and Omnirad (registered trademark) TPO [see above, IGM Resins B. V. Company-made].
Examples of commercially available photopolymerization initiators that are oxime compounds include Irgacure (registered trademark) OXE01, Irgacure (registered trademark) OXE02 (manufactured by BASF), and Irgacure (registered trademark) OXE03 (all manufactured by BASF). Can be mentioned.
An example of a commercially available photopolymerization initiator that is a thio compound is 2,4-diethylthioxanthone (manufactured by Tokyo Kasei Kogyo Co., Ltd.).

When the polymerizable composition according to the present disclosure contains a polymerization initiator, it may contain only one type of polymerization initiator, or it may contain two or more types of polymerization initiator.

When the polymerizable composition according to the present disclosure contains a polymerization initiator, the content of the polymerization initiator is not particularly limited, but is, for example, 0.1% by mass to 0.1% by mass based on the total solid mass of the polymerizable composition. It is preferably 20% by weight, more preferably 0.5% to 20% by weight, and even more preferably 1.0% to 20% by weight.

[Ultraviolet absorber]
The polymerizable composition according to the present disclosure may further contain an ultraviolet absorber.
The ultraviolet absorber is not particularly limited, and examples thereof include aminobutadiene compounds, dibenzoylmethane compounds, benzotriazole compounds, benzophenone compounds, and hydroxyphenyltriazine compounds.
Among these, as the ultraviolet absorber, at least one selected from the group consisting of benzotriazole compounds, benzophenone compounds, and hydroxyphenyltriazine compounds is preferable.

In the present disclosure, an "aminobutadiene compound" refers to a "compound containing an aminobutadiene skeleton in the molecule," and a "dibenzoylmethane compound" refers to a "compound containing a dibenzoylmethane skeleton in the molecule." "Benzotriazole compounds" refer to "compounds containing a benzotriazole skeleton in the molecule," "benzophenone compounds" refer to "compounds containing a benzophenone skeleton in the molecule," and "hydroxyphenyltriazine "based compound" refers to "a compound containing a hydroxyphenyltriazine skeleton in the molecule."

The ultraviolet absorber may or may not have a polymerizable group in its molecule.
Specific examples of the polymerizable group include a vinyl group, (meth)allyl group, (meth)acryloyl group, (meth)acryloyloxy group, (meth)acryloylamino group, and vinylphenyl group.

Examples of the ultraviolet absorber include JP 2003-128730, JP 2003-129033, JP 2014-077076, JP 2015-164994, JP 2015-168822, and JP 2015-168822. 2018-135282, 2018-168089, 2018-168278, 2018-188589, 2019-001767, 2020-023697, 2020- 041013 Publication, Japanese Patent No. 5518613, Japanese Patent No. 5868465, Japanese Patent No. 6301526, Japanese Patent No. 6354665, Special Publication No. 2017-503905, International Publication No. 2015/064674, International Publication No. 2015/064675 International Publication No. 2017/102675, International Publication No. 2017/122503, International Publication No. 2018/190281, International Publication No. 2018/216750, International Publication No. 2019/087983, International Publication No. 2021/029146, Compounds described in EP 2,379,512 and EP 2,951,163 can be used.

Commercially available UV absorbers include benzotriazole compounds such as Tinuvin (registered trademark) P, Tinuvin (registered trademark) 234, Tinuvin (registered trademark) 326, Tinuvin (registered trademark) 571, and Tinuvin (registered trademark). 970 (manufactured by BASF), and triazine compounds, Tinuvin (registered trademark) 1577 and Tinuvin (registered trademark) 1600 (manufactured by BASF). In addition, commercially available UV absorbers include RUVA-93 [trade name, ingredients: 2-[2-hydroxy-5-(2-methacryloyloxyethyl)phenyl]2H-benzo[d][1,2,3 ] triazole, manufactured by Otsuka Chemical Co., Ltd.].

When the polymerizable composition according to the present disclosure contains an ultraviolet absorber, it may contain only one type of ultraviolet absorber, or it may contain two or more types of ultraviolet absorber.

When the polymerizable composition according to the present disclosure contains an ultraviolet absorber, the content of the ultraviolet absorber is not particularly limited, but is, for example, from 0.01% by mass to the total solid mass of the polymerizable composition. It is preferably 10% by weight, more preferably 0.01% to 5% by weight.

[Polymer compound]
The polymerizable composition according to the present disclosure may further contain a polymer compound.
The polymer compound is not particularly limited, but for example, resin is preferable.
The resin is not particularly limited, and includes, for example, (meth)acrylic resin, polyester resin, polycarbonate resin, vinyl polymer (for example, polydiene resin, polyalkene resin, polystyrene resin, polyvinyl ether resin, polyvinyl alcohol resin, polyvinyl ketone resin, polyfluorovinyl resin, polyvinyl bromide resin), polythioether resin, polyphenylene resin, polyurethane resin, polysulfonate resin, nitrosopolymer resin, polysiloxane resin, polysulfide resin, polythioester resin, polysulfone resin, polysulfonamide resin, polyamide Resin, polyimine resin, polyurea resin, polyphosphazene resin, polysilane resin, polysilazane resin, polyfuran resin, polybenzoxazole resin, polyoxadiazole resin, polybenzothiazinophenothiazine resin, polybenzothiazole resin, polypyrazinoquinoxaline resin, Polypyromellitimide resin, polyquinoxaline resin, polybenzimidazole resin, polyoxoisoindoline resin, polydioxoisoindoline resin, polytriazine resin, polypyridazine resin, polypiperazine resin, polypyridine resin, polypiperidine resin, polytriazole resin, Examples include polypyrazole resin, polypyrrolidine resin, polycarborane resin, polyoxabicyclononane resin, polydibenzofuran resin, polyphthalide resin, polyacetal resin, polyimide resin, olefin resin, cyclic olefin resin, epoxy resin, and cellulose acylate resin.
For details of the resin, for example, the description in paragraphs [0075] to [0097] of JP-A No. 2009-263616 can be referred to, and the contents thereof are incorporated into the present specification.

As the resin, (meth)acrylic resin and polyester resin are used, from the viewpoint of having good compatibility with the clathrate compound according to the present disclosure, and also because it is easy to obtain a film with suppressed surface unevenness when a film is formed. , polystyrene resin, polyurethane resin, polycarbonate resin, epoxy resin, and cellulose acylate resin, preferably at least one resin selected from the group consisting of (meth)acrylic resin, polyester resin, polystyrene resin, polyurethane resin, More preferably, it is at least one resin selected from the group consisting of epoxy resins and cellulose acylate resins.

Examples of commercially available (meth)acrylic resins include the SK Dyne series (product example: SK Dyne (registered trademark) SF2147) manufactured by Soken Kagaku Co., Ltd.

Examples of commercially available polyester resins include the Byron series (product example: Bylon 500) manufactured by Toyobo Co., Ltd.

As the polystyrene resin, a resin containing repeating units derived from a styrene compound (also referred to as "styrenic monomer") at 50% by mass or more based on all repeating units is preferable, and a resin containing 70% by mass or more is more preferable. More preferred is a resin containing 85% by mass or more.
Specific examples of styrene monomers include styrene and its derivatives. Here, "styrene derivative" means a compound in which another group is bonded to styrene.
Specific examples of styrene derivatives include alkylstyrenes (eg, o-methylstyrene, m-methylstyrene, p-methylstyrene, 2,4-dimethylstyrene, o-ethylstyrene, and p-ethylstyrene). Specific examples of styrene derivatives include substituted styrene in which a hydroxy group, alkoxy group, carboxyl group, halogen, etc. are introduced into the benzene nucleus of styrene (e.g., hydroxystyrene, tert-butoxystyrene, vinylbenzoic acid, o- chlorostyrene, and p-chlorostyrene).
The polystyrene resin may contain repeating units derived from monomers other than styrenic monomers. Other monomers include, for example, alkyl (meth)acrylates, unsaturated carboxylic acid monomers, unsaturated dicarboxylic anhydride monomers, unsaturated nitrile monomers, and conjugated dienes.
Specific examples of alkyl (meth)acrylates include methyl (meth)acrylate, cyclohexyl (meth)acrylate, methylphenyl (meth)acrylate, and isopropyl (meth)acrylate.
Specific examples of unsaturated carboxylic acid monomers include methacrylic acid, acrylic acid, itaconic acid, maleic acid, fumaric acid, and cinnamic acid.
Specific examples of unsaturated dicarboxylic anhydride monomers include maleic anhydride and the anhydrides of itaconic acid, ethylmaleic acid, methylitaconic acid, and chloromaleic acid.
Specific examples of unsaturated nitrile monomers include acrylonitrile and methacrylonitrile.
Specific examples of conjugated dienes include 1,3-butadiene, 2-methyl-1,3-butadiene (isoprene), 2,3-dimethyl-1,3-butadiene, 1,3-pentadiene, and 1,3-butadiene. Examples include hexadiene.
Examples of commercially available polystyrene resins include AS-70 [acrylonitrile-styrene copolymer resin, manufactured by Nippon Steel Chemical & Materials Co., Ltd.] and SMA2000P [styrene-maleic acid copolymer, manufactured by Kawasaki Chemical Co., Ltd.]. ].

Examples of the epoxy resin include bisphenol A epoxy resin, bisphenol F epoxy resin, phenol novolak epoxy resin, cresol novolac epoxy resin, and aliphatic epoxy resin.
Bisphenol A type epoxy resin commercially available items are JER827, JER828, JER834, JER1001, JER1002, JER1002, JER1003, JER1055, JER10055, JER1009, and JER109, and JER1010. Made by], and PICLON (registered trademark) ) 860, EPICLON (registered trademark) 1050, EPICLON (registered trademark) 1051, and EPICLON (registered trademark) 1055 [all manufactured by DIC Corporation].
Examples of commercially available bisphenol F-type epoxy resins include JER806, JER807, JER4004, JER4005, JER4007, and JER4010 (manufactured by Mitsubishi Chemical Corporation), EPICLON (registered trademark) 830, and EPICLON (registered trademark) 835. [all manufactured by DIC Corporation], and LCE-21 and RE-602S [all manufactured by Nippon Kayaku Co., Ltd.].
Examples of commercially available phenol novolac type epoxy resins include JER152, JER154, JER157S70, and JER157S65 [all manufactured by Mitsubishi Chemical Corporation], and EPICLON (registered trademark) N-740, EPICLON (registered trademark) N- 770, and EPICLON (registered trademark) N-775 [manufactured by DIC Corporation].
Examples of commercially available cresol novolac type epoxy resins include EPICLON (registered trademark) N-660, EPICLON (registered trademark) N-665, EPICLON (registered trademark) N-670, EPICLON (registered trademark) N-673, and EPICLON (registered trademark) N-673. (registered trademark) N-680, EPICLON (registered trademark) N-690, and EPICLON (registered trademark) N-695 [manufactured by DIC Corporation], and EOCN-1020 [manufactured by Nippon Kayaku Co., Ltd.] ].

As the cellulose acylate resin, for example, cellulose acylate described in paragraphs [0016] to [0021] of JP-A-2012-215689 is preferable.

Preferably, the resin is an alkali-soluble resin.
In the present disclosure, "alkali-soluble" refers to being soluble in a 1 mol/L sodium hydroxide solution at 25°C. Moreover, "soluble" means that 0.1 g or more is dissolved in 100 mL of a solvent.
The alkali-soluble resin is preferably a resin having a group that promotes alkali solubility (hereinafter also referred to as "acid group").
Examples of the acid group include a carboxy group, a phosphoric acid group, a sulfonic acid group, and a phenolic hydroxy group.
Among these, a carboxy group is preferable as the acid group.
When the resin has acid groups, it may have only one type of acid group, or it may have two or more types of acid groups.

The alkali-soluble resin is preferably a polymer having a carboxy group in its side chain.
Examples of alkali-soluble resins include alkalis such as (meth)acrylic acid copolymers, itaconic acid copolymers, crotonic acid copolymers, maleic acid copolymers, partially esterified maleic acid copolymers, and novolac type resins. Examples include soluble phenolic resins, acidic cellulose derivatives having carboxyl groups in their side chains, and polymers having hydroxyl groups to which acid anhydrides are added.

The alkali-soluble resin is particularly preferably a copolymer of (meth)acrylic acid and another monomer copolymerizable with the (meth)acrylic acid (ie, a (meth)acrylic acid copolymer).
Other monomers copolymerizable with (meth)acrylic acid include, for example, alkyl (meth)acrylates, aryl (meth)acrylates, and vinyl compounds.
Specific examples of other monomers copolymerizable with (meth)acrylic acid include methyl (meth)acrylate, ethyl (meth)acrylate, propyl (meth)acrylate, butyl (meth)acrylate, isobutyl (meth)acrylate, and pentyl (meth)acrylate, hexyl (meth)acrylate, octyl (meth)acrylate, phenyl (meth)acrylate, benzyl (meth)acrylate, tolyl (meth)acrylate, naphthyl (meth)acrylate, cyclohexyl (meth)acrylate, styrene, α - methylstyrene, vinyltoluene, glycidyl methacrylate, acrylonitrile, vinyl acetate, N-vinylpyrrolidone, tetrahydrofurfuryl methacrylate, polystyrene macromonomer, and polymethylmethacrylate macromonomer.
Further, other monomers copolymerizable with (meth)acrylic acid include, for example, N-substituted maleimides (for example, N-phenylmaleimide and N-cyclohexylmaleimide) described in JP-A-10-300922. It will be done.
In the (meth)acrylic acid copolymer, the number of other monomers copolymerizable with (meth)acrylic acid may be only one, or two or more.

In addition, examples of the alkali-soluble resin include benzyl (meth)acrylate/(meth)acrylic acid copolymer, benzyl (meth)acrylate/(meth)acrylic acid/2-hydroxyethyl (meth)acrylate copolymer, and benzyl ( Preferred examples include multi-component copolymers of meth)acrylate/(meth)acrylic acid/other monomers.
In addition, examples of alkali-soluble resins include those copolymerized with 2-hydroxyethyl (meth)acrylate, and 2-hydroxypropyl (meth)acrylate/polystyrene macromonomer/benzyl resin described in JP-A No. 7-140654. Methacrylate/methacrylic acid copolymer, 2-hydroxy-3-phenoxypropyl acrylate/polymethyl methacrylate macromonomer/benzyl methacrylate/methacrylic acid copolymer, 2-hydroxyethyl methacrylate/polystyrene macromonomer/methyl methacrylate/methacrylic acid copolymer Preferred examples include 2-hydroxyethyl methacrylate/polystyrene macromonomer/benzyl methacrylate/methacrylic acid copolymer.

For details of the alkali-soluble resin, for example, the descriptions in JP-A No. 2012-208494 and JP-A No. 2012-198408 can be referred to, and the contents thereof are incorporated into the present specification.

The acid value of the alkali-soluble resin is not particularly limited, but is preferably, for example, 30 mgKOH/g to 200 mgKOH/g. The lower limit is more preferably 50 mgKOH/g or more, and even more preferably 70 mgKOH/g or more. The upper limit is more preferably 150 mgKOH/g or less, and even more preferably 120 mgKOH/g or less.
In the present disclosure, the acid value is a value measured according to the method described in JIS K 0070:1992.

The resin may have a polymerizable group.
When the polymerizable composition according to the present disclosure contains a resin having a polymerizable group, a film having higher hardness can be formed.
Specific examples of the polymerizable group include a vinyl group, (meth)allyl group, (meth)acryloyl group, (meth)acryloyloxy group, (meth)acryloylamino group, and vinylphenyl group.

Examples of commercially available resins having polymerizable groups include the DIANAL BR series [Resin type: polymethyl methacrylate (PMMA), product examples: DIANAL (registered trademark) BR-80, BR-83, and BR- 87, manufactured by Mitsubishi Chemical Corporation], Photomer 6173 [type of resin: COOH-containing polyurethane acrylic oligomer, Diamond manufactured by Shamrock], Viscoat R-264 and KS Resist 106 [all of the above, manufactured by Osaka Organic Chemical Industry Co., Ltd.], Cyclomer P series [Product examples: Cyclomer (registered trademark) P (ACA) Z230AA], Plaxel CF200 series [all of Daicel Corporation], EBECRYL (registered trademark) 3800 [manufactured by Daicel Allnex Corporation], Another example is AcryCure (registered trademark) RD-F8 (manufactured by Nippon Shokubai Co., Ltd.).

The weight average molecular weight of the resin is not particularly limited.
The weight average molecular weight of the epoxy resin is, for example, preferably 100 or more, more preferably 200 or more. Further, the weight average molecular weight of the epoxy resin is preferably 2,000,000 or less, more preferably 1,000,000 or less, and even more preferably 500,000 or less.
The weight average molecular weight of the resin other than the epoxy resin is, for example, preferably 3,000 or more, more preferably 4,000 or more, and even more preferably 5,000 or more. Further, the weight average molecular weight of the resin other than the epoxy resin is preferably 2,000,000 or less, more preferably 1,000,000 or less, and even more preferably 500,000 or less. .

The total light transmittance of the resin is preferably 80% or more, more preferably 85% or more, and even more preferably 90% or more. In the present disclosure, the total light transmittance of the resin was measured based on the content described in "4th Edition Experimental Chemistry Course 29 Polymer Materials Medium" edited by the Chemical Society of Japan (Maruzen, 1992), pages 225 to 232. It is a value.

When the polymerizable composition according to the present disclosure contains a polymer compound (preferably a resin; the same applies hereinafter), it may contain only one type of polymer compound, or it may contain two or more types of polymer compound.

When the polymerizable composition according to the present disclosure includes a polymer compound, the content of the polymer compound is not particularly limited, but is, for example, 1% by mass to 99% by mass based on the total solid mass of the polymerizable composition. It is preferably 9% by mass. The lower limit is more preferably 5% by mass or more, and even more preferably 7% by mass or more. The upper limit is more preferably 99% by mass or less, and even more preferably 95% by mass or less.

〔solvent〕
The polymerizable composition according to the present disclosure may further contain a solvent.
In the polymerizable composition according to the present disclosure, the solvent can contribute, for example, to viscosity adjustment.
According to the solvent, the viscosity of the polymerizable composition can be adjusted to a viscosity suitable for use as a coating liquid, for example. Note that when the polymerizable composition according to the present disclosure includes a low molecular weight monomer as the above-mentioned polymerizable compound, the monomer may function as a solvent. In this case, the polymerizable composition according to the present disclosure does not need to contain a solvent, but may further contain a solvent in order to adjust physical properties and the like.

The solvent is not particularly limited, and can be appropriately selected, for example, taking into consideration the applicability of the polymerizable composition according to the present disclosure and the solubility of each component contained in the polymerizable composition according to the present disclosure.
For example, the solvent not only has the solubility or dispersibility of the clathrate compound and the polymerizable compound according to the present disclosure, but also the components included in the polymerizable composition if desired [e.g., polymerization initiator, polymer compound, ultraviolet absorber] , surfactants, coloring agents, etc.], the properties of the coated surface upon coating, ease of handling, etc., and are preferably selected.
The solvent may be water or an organic solvent.
Preferably, the solvent is an organic solvent.
Since the clathrate compound according to the present disclosure contained in the polymerizable composition according to the present disclosure has excellent solubility in an organic solvent, bleed-out becomes more difficult to occur when the solvent is an organic solvent.

The organic solvent is not particularly limited, and examples thereof include ester compounds, ether compounds, ketone compounds, and aromatic hydrocarbon compounds.

Examples of ester compounds include ethyl acetate, n-butyl acetate, isobutyl acetate, amyl formate, isoamyl acetate, isobutyl acetate, butyl propionate, isopropyl butyrate, ethyl butyrate, butyl butyrate, methyl lactate, ethyl lactate, and alkyl oxyacetate. Ester compound, 3-oxypropionic acid alkyl ester compound, 2-oxypropionic acid alkyl ester compound, methyl 2-oxy-2-methylpropionate (e.g. methyl 2-methoxy-2-methylpropionate), 2-oxy- Ethyl 2-methylpropionate (e.g. ethyl 2-ethoxy-2-methylpropionate), methyl pyruvate, ethyl pyruvate, propyl pyruvate, methyl acetoacetate, ethyl acetoacetate, methyl 2-oxobutanoate, 2-oxobutane ethyl acetate, cyclohexyl acetate, and 1-methyl-2-methoxyethyl propionate.
Examples of the oxyacetic acid alkyl ester compounds include methyl oxyacetate, ethyl oxyacetate, and butyl oxyacetate, specifically, methyl methoxy acetate, ethyl methoxy acetate, butyl methoxy acetate, methyl ethoxy acetate, and ethyl ethoxy acetate. etc. Examples of the 3-oxypropionate alkyl ester compounds include methyl 3-oxypropionate and ethyl 3-oxypropionate, specifically, methyl 3-methoxypropionate, ethyl 3-methoxypropionate, Examples include methyl 3-ethoxypropionate and ethyl 3-ethoxypropionate. Examples of the 2-oxypropionate alkyl ester compounds include methyl 2-oxypropionate, ethyl 2-oxypropionate, and propyl 2-oxypropionate, and specifically, methyl 2-methoxypropionate, Examples include ethyl 2-methoxypropionate, propyl 2-methoxypropionate, methyl 2-ethoxypropionate, and ethyl 2-ethoxypropionate.

Examples of ether compounds include diethylene glycol dimethyl ether, tetrahydrofuran, ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, methyl cellosolve acetate, ethyl cellosolve acetate, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monobutyl ether, propylene glycol monomethyl ether, and propylene. Glycol monomethyl ether acetate, diethylene glycol monoethyl ether acetate (also referred to as "ethyl carbitol acetate"), diethylene glycol monobutyl ether acetate (also referred to as "butyl carbitol acetate"), propylene glycol monoethyl ether acetate, and propylene glycol monopropyl Examples include ether acetate.

Examples of the ketone compound include methyl ethyl ketone, cyclohexanone, 2-heptanone, and 3-heptanone.

Preferred examples of the aromatic hydrocarbon compound include toluene and xylene.

When the polymerizable composition according to the present disclosure contains a solvent, it may contain only one type of solvent; From the viewpoint of further improving the properties, two or more types of solvents may be included.
When the polymerizable composition according to the present disclosure contains two or more solvents, methyl 3-ethoxypropionate, ethyl 3-ethoxypropionate, ethyl cellosolve acetate, ethyl lactate, diethylene glycol dimethyl ether, butyl acetate, 3-methoxypropionic acid It is preferable to contain two or more solvents selected from the group consisting of methyl, 2-heptanone, cyclohexanone, ethyl carbitol acetate, butyl carbitol acetate, propylene glycol methyl ether, and propylene glycol methyl ether acetate.

When the polymerizable composition according to the present disclosure contains a solvent, the content of the solvent is not particularly limited and can be appropriately set depending on the purpose.
When the polymerizable composition according to the present disclosure contains an organic solvent as a solvent, the content of the organic solvent is preferably 10% by mass to 80% by mass, for example, based on the total mass of the polymerizable composition. , more preferably 15% by mass to 60% by mass.

[Surfactant]
The polymerizable composition according to the present disclosure may further contain a surfactant.
When the polymerizable composition according to the present disclosure contains a surfactant, for example, it may be possible to further improve the coated surface properties when applied and the adhesion to a substrate when a film is formed.

Examples of the surfactant include the surfactants described in paragraph [0017] of Japanese Patent No. 4502784 and paragraphs [0060] to [0071] of JP-A-2009-237362.
Examples of the surfactant include fluorine surfactants, silicone surfactants, nonionic surfactants, anionic surfactants, cationic surfactants, and amphoteric surfactants.
Among these, the surfactant is preferably at least one selected from the group consisting of fluorosurfactants, silicone surfactants, nonionic surfactants, and anionic surfactants.

Examples of fluorine-based surfactants include acrylic compounds that have a molecular structure with a functional group containing a fluorine atom, and when heat is applied, the functional group containing the fluorine atom is severed and the fluorine atom evaporates. It can be used preferably. Furthermore, as the fluorine-based surfactant, for example, a copolymer of a fluorine atom-containing vinyl ether compound having a fluorinated alkyl group or a fluorinated alkylene ether group and a hydrophilic vinyl ether compound can also be preferably used. Further, as the fluorosurfactant, for example, a block polymer can also be used. In addition, as a fluorine-based surfactant, for example, a repeating unit derived from a (meth)acrylate compound having a fluorine atom and two or more (preferably A fluorine-containing polymer compound containing a repeating unit derived from a (meth)acrylate compound having (5 or more) can also be preferably used. Furthermore, as the fluorine-containing surfactant, for example, a fluorine-containing polymer having an ethylenically unsaturated bond-containing group in its side chain can also be used.

As the fluorine-based surfactant, commercially available products can be used.
Examples of commercially available fluorosurfactants include Megafac (registered trademark) F-171, F-172, F-173, F-176, F-177, F-141, F-142, F-143. , F-144, F-437, F-475, F-477, F-479, F-482, F-551-A, F-552, F-554, F-555-A, F-556, F -557, F-558, F-559, F-560, F-561, F-565, F-563, F-568, F-575, F-780, EXP. MFS-330, R-41, R-41-LM, R-01, R-40, R-40-LM, RS-43, TF-1956, RS-90, R-94, RS-718K, RS- 72-K, RS-101, RS-102, and DS-21 [manufactured by DIC Corporation], Florado FC430, FC431, and FC171 [manufactured by Sumitomo 3M Corporation], Surflon (registered trademark) S -382, SC-101, SC-103, SC-104, SC-105, SC-1068, SC-381, SC-383, S-393, and KH-40 [all manufactured by AGC Co., Ltd.], PolyFox PF636, PF656, PF6320, PF6520, and PF7002 [all manufactured by OMNOVA], and Ftergent (registered trademark) 710FM, 610FM, 601AD, 601ADH2, 602A, 215M, 245F, 251, 212M, 250, 209F, 222 F, Examples include 208G, 710LA, 710FS, 730LM, 650AC, and 681 (manufactured by NEOS Corporation).

Examples of silicone surfactants include linear polymers consisting of siloxane bonds, and modified siloxane polymers in which organic groups are introduced into side chains and/or terminals.

As the silicone surfactant, commercially available products can be used.
Examples of commercially available silicone surfactants include DC3PA, SH7PA, DC11PA, SH21PA, SH28PA, SH29PA, SH30PA, SH8400, and DOWSIL (registered trademark) 8032 ADDITIVE (all manufactured by DuPont Toray Specialty Materials Co., Ltd.). [manufactured], X-22-4952, -6191, -4460, and TSF-4452 (all manufactured by Momentive Performance Materials), and BYK307, BYK323, and BYK330 (all manufactured by BYK Chemie).

Examples of nonionic surfactants include glycerol, trimethylolpropane, and trimethylolethane, as well as their ethoxylates (eg, glycerol ethoxylate) and propoxylates (eg, glycerol propoxylate).
Examples of nonionic surfactants include polyoxyethylene alkyl ether, polyoxyethylene alkylaryl ether, polyoxyethylene oxypropylene block copolymer, sorbitan fatty acid ester, polyoxyethylene sorbitan fatty acid ester, and polyoxyethylene sorbitol fatty acid ester. , glycerin fatty acid ester, polyoxyethylene fatty acid ester, and polyoxyethylene alkylamine.

As the nonionic surfactant, commercially available products can be used.
Examples of commercially available nonionic surfactants include Pluronic (registered trademark) L10, L31, L61, L62, 10R5, 17R2, and 25R2 (manufactured by BASF), Tetronic (registered trademark) 304, 701, 704, 901, 904, and 150R1 (manufactured by BASF), Solsperse 20000 (manufactured by Japan Lubrizol Co., Ltd.), NCW-101, NCW-1001, and NCW-1002 (manufactured by Fuji) film produced by Wako Pure Chemical Industries, Ltd.], Pionin D-6112, D-6112-W, and D-6315 [all manufactured by Takemoto Yushi Co., Ltd.], Olfine (registered trademark) E1010 [all manufactured by Nissin Chemical Industry Co., Ltd.] Surfynol (registered trademark) 104, 400, and 440 (all manufactured by Nissin Chemical Industry Co., Ltd.).

Examples of anionic surfactants include fatty acid salts, alkyl sulfate ester salts, alkylbenzene sulfonates, alkylnaphthalene sulfonates, dialkyl sulfosuccinates, alkyl diarylether disulfonates, alkyl phosphates, polyoxyethylene alkyl Examples include ether sulfate, polyoxyethylene alkylaryl ether sulfate, naphthalene sulfonic acid formalin condensate, polyoxyethylene alkyl phosphate ester salt, glycerol borate fatty acid ester, and polyoxyethylene glycerol fatty acid ester.

When the polymerizable composition according to the present disclosure contains a surfactant, it may contain only one type of surfactant, or it may contain two or more types of surfactant.

When the polymerizable composition according to the present disclosure contains a surfactant, the content of the surfactant is, for example, 0.01% by mass to 3% by mass based on the total solid mass of the polymerizable composition. It is preferably 0.05% by mass to 1% by mass, and even more preferably 0.1% by mass to 0.8% by mass.

[Other ingredients]
The polymerizable composition according to the present disclosure may further contain components other than the above-mentioned components (so-called other components), as necessary, within a range that does not impair its effects.
Other components include various additives.
Examples of additives include colorants, preservatives, antifungal agents, and antistatic agents.

[Resin composition]
The resin composition according to the present disclosure includes the clathrate compound according to the present disclosure and a resin.

[Inclusion compound according to the present disclosure]
The resin composition according to the present disclosure includes the clathrate compound according to the present disclosure.
The details of the clathrate compound according to the present disclosure are as described above, so the explanation will be omitted.

The resin composition according to the present disclosure may contain only one kind of clathrate compound according to the present disclosure, or may contain two or more kinds.

The content of the clathrate compound according to the present disclosure in the resin composition according to the present disclosure is not particularly limited, and can be appropriately set depending on the purpose.
The content of the clathrate compound according to the present disclosure in the resin composition according to the present disclosure is, for example, preferably 0.001% by mass to 90% by mass with respect to the total solid mass of the resin composition. The lower limit is more preferably 0.005% by mass or more, and even more preferably 0.01% by mass or more. The upper limit is more preferably 85% by mass or less, and even more preferably 50% by mass or less.

〔resin〕
The resin composition according to the present disclosure includes a resin.
The resin in the resin composition according to the present disclosure has the same meaning as the resin as the polymer compound in the polymerizable composition according to the present disclosure, and the preferred embodiments are also the same, so the explanation will be omitted here.

The resin composition according to the present disclosure may contain only one type of resin, or may contain two or more types of resin.

The content of the resin in the resin composition according to the present disclosure is not particularly limited, but is preferably 1% by mass to 99.9% by mass based on the total solid mass of the resin composition. The lower limit is more preferably 5% by mass or more, and even more preferably 7% by mass or more. The upper limit is more preferably 99% by mass or less, and even more preferably 95% by mass or less.

[Other ingredients]
The resin composition according to the present disclosure may further contain components other than the clathrate compound and resin according to the present disclosure (so-called other components), if necessary. Other components include, for example, the components described in the polymerizable composition according to the present disclosure described above. Specific examples include polymerizable compounds, polymerization initiators, ultraviolet absorbers, solvents, surfactants, and the like. The details of these components are as described above, so their explanation will be omitted here.
Further, the resin composition according to the present disclosure may contain various additives as necessary within a range that does not impair its effects. Examples of additives include colorants, preservatives, antifungal agents, and antistatic agents.

[Polymer]
The polymer according to the present disclosure includes a structural unit derived from the clathrate compound according to the present disclosure.
The polymer according to the present disclosure may be a homopolymer of the clathrate compound according to the present disclosure, or a copolymer of the clathrate compound according to the present disclosure and another compound.
The polymer according to the present disclosure is, for example, the clathrate compound according to the present disclosure and the polymerizable compound obtained using the already described polymerizable composition according to the present disclosure containing the clathrate compound according to the present disclosure and the polymerizable compound. The clathrate according to the present disclosure obtained using the polymerizable composition according to the present disclosure already described, which contains the clathrate compound according to the present disclosure, a polymerizable compound, and an ultraviolet absorber. It may also be a copolymer of a compound, a polymerizable compound, and an ultraviolet absorber.
The details of the clathrate compound, polymerizable compound, and ultraviolet absorber according to the present disclosure are as described above, so the description thereof will be omitted here.

The weight average molecular weight of the polymer according to the present disclosure is not particularly limited, but for example, it is preferably from 5,000 to 80,000, more preferably from 10,000 to 60,000, and from 10,000 to More preferably, it is 40,000.

The polymer according to the present disclosure may contain only one kind of structural unit derived from the clathrate compound according to the present disclosure, or may contain two or more kinds.

The content of the structural unit derived from the clathrate compound according to the present disclosure in the polymer according to the present disclosure is not particularly limited, but is, for example, 0.01% by mass to 100% by mass with respect to all the structural units of the polymer. It is preferable that The lower limit is more preferably 0.02% by mass or more, and even more preferably 0.1% by mass or more. The upper limit is more preferably 50% by mass or less, and even more preferably 10% by mass or less.

When the polymer according to the present disclosure contains structural units derived from a polymerizable compound, the content of the structural units derived from the polymerizable compound is not particularly limited, but for example, 20 It is preferably from % by mass to less than 100% by mass. The lower limit is more preferably 30% by mass or more, and even more preferably 50% by mass or more. The upper limit is more preferably 99.99% by mass or less, and even more preferably 99.9% by mass or less.
When the polymer according to the present disclosure includes a structural unit derived from an ultraviolet absorber, the content of the structural unit derived from the ultraviolet absorber is not particularly limited, but for example, the content of the structural unit derived from the ultraviolet absorber is 0 with respect to all the structural units of the polymer. The amount is preferably from .01% by weight to 90% by weight. The lower limit is more preferably 0.02% by mass or more, and even more preferably 0.1% by mass or more. The upper limit is more preferably 50% by mass or less, and even more preferably 10% by mass or less.

[Cured product]
The cured product according to the present disclosure is a cured product of the polymerizable composition according to the present disclosure.
In the cured product according to the present disclosure, since the specific squarylium compound is immobilized in a state of being included in the host molecule, wet thermal decomposition of the specific squarylium compound and bleed-out of the specific squarylium compound are unlikely to occur.

The cured product according to the present disclosure preferably has a maximum absorption wavelength within the range of 550 nm to 610 nm, more preferably within the range of 555 nm to 610 nm, and even more preferably within the range of 555 nm to 605 nm.
A cured product with a maximum absorption wavelength in the range of 550 nm to 610 nm is excellent in selectively absorbing light in a wavelength range with poor color purity, and is therefore used, for example, as a color filter (particularly a color correction filter for displays). In this case, the effect of excellent color reproducibility can be achieved without reducing the brightness of the display.
The maximum absorption wavelength of the cured product according to the present disclosure is measured using a spectrophotometer.

The cured product according to the present disclosure is obtained by curing the polymerizable composition according to the present disclosure.
The method for forming a cured product according to the present disclosure is not particularly limited, and any known method can be applied.
The cured product according to the present disclosure can be produced by, for example, forming a polymerizable composition layer using the polymerizable composition according to the present disclosure, and then applying energy to the formed polymerizable composition layer. Obtained by curing the layer. The polymerizable composition layer may be formed on a desired support.
The method of applying energy to the polymerizable composition layer is not particularly limited, and examples thereof include light irradiation and heating. Among these, as a method for imparting energy to the polymerizable composition layer, light irradiation is preferable, and ultraviolet irradiation is more preferable.
Note that when light irradiation is applied to impart energy, the polymerizable composition according to the present disclosure preferably contains a photopolymerization initiator.

When curing the polymerizable composition layer by irradiating ultraviolet rays, for example, an ultraviolet lamp can be used for irradiating the ultraviolet rays.
The amount of ultraviolet light irradiation is not particularly limited, but is preferably, for example, 10 mJ/cm ² to 1000 mJ/cm ² . When the amount of ultraviolet light irradiation is within the above range, the polymerizable composition layer tends to be cured more suitably.
When irradiating ultraviolet rays, an inert gas such as nitrogen gas is sent into the spatial area where the ultraviolet rays are irradiated, in order to suppress curing inhibition caused by oxygen and further promote surface hardening of the polymerizable composition layer. Air may be replaced with an inert gas to reduce the oxygen concentration.
The oxygen concentration in the spatial region where ultraviolet rays are irradiated is not particularly limited, but is preferably, for example, 1% or less.

In order to accelerate the curing reaction of the polymerizable composition layer, the temperature may be increased when curing the polymerizable composition layer. For example, the temperature when curing the polymerizable composition layer is preferably 25°C to 100°C, more preferably 30°C to 80°C, and even more preferably 40°C to 70°C.

When the polymerizable composition according to the present disclosure contains a solvent, it is recommended to dry the polymerizable composition layer in advance to reduce the amount of solvent before applying energy to the polymerizable composition layer. It is preferable from the viewpoint of improving the curability of the composition layer.
The method for drying the polymerizable composition layer is not particularly limited, and any known drying method can be employed.
Examples of methods for drying the polymerizable composition layer include a method of blowing hot air, a method of passing through a drying zone controlled at a predetermined temperature, and a method of transporting using a transport roll equipped with a heater.

Further, the cured product according to the present disclosure can be obtained by, for example, filling a desired mold with a polymerizable composition and then applying energy to the filled polymerizable composition to cure the polymerizable composition. can get. In this case, the method of applying energy is preferably heating.
Note that when heating is applied to impart energy, the polymerizable composition according to the present disclosure preferably contains a thermal polymerization initiator.

When heating is applied to impart energy, the heating time is not particularly limited, but for example, it is preferably 30 seconds to 1000 seconds, more preferably 30 seconds to 500 seconds, and 60 seconds to 300 seconds. More preferably.
The atmosphere when thermally polymerizing the polymerizable composition by heating may be an air atmosphere or an inert gas atmosphere such as nitrogen gas, but for example, from the viewpoint of curability of the polymerizable composition, is preferably an inert gas atmosphere, more preferably an inert gas atmosphere with an oxygen concentration of 1% or less.

Furthermore, the cured product according to the present disclosure can also be obtained, for example, by the following method. After forming a polymerizable composition layer using the polymerizable composition according to the present disclosure, energy is applied to the formed polymerizable composition layer under conditions such that it becomes a semi-cured product before being completely cured, and polymerization is performed. A semi-cured product of the composition layer is obtained. Next, the obtained semi-cured product is placed in a desired mold, and then energy is applied under conditions for complete curing, thereby obtaining a cured product according to the present disclosure. Such a method is preferable from the viewpoint that it becomes easy to obtain a cured product having an arbitrary shape.

Applications of the cured product according to the present disclosure include, for example, optical filters (eg, color correction filters for displays) and spectacle lenses.
The cured product according to the present disclosure is preferably an optical filter.
When the cured product according to the present disclosure is an optical filter, it is preferable that the cured product according to the present disclosure does not have an absorption maximum in a wavelength range other than the wavelength range of 550 nm to 610 nm. An optical filter having such characteristics is suitable as an optical filter for a liquid crystal display device with a wide color reproduction range and high brightness.

When the cured product according to the present disclosure is an optical filter, the thickness of the cured product according to the present disclosure is not particularly limited, but is preferably, for example, 5 μm to 2500 μm, more preferably 20 μm to 1000 μm.
When the thickness of the cured product according to the present disclosure is within the above range, desired visible light transmittance can be easily obtained, and it can also be easily handled as an optical filter.

When the cured product according to the present disclosure is an optical filter, the content of the clathrate compound according to the present disclosure in the cured product according to the present disclosure is not particularly limited, but is, for example, 0.005 mmol/m ² to 0.1 mmol/ m ² is preferable, and 0.01 mmol/m ² to 0.05 mmol/m ² is more preferable.
The content of the clathrate compound according to the present disclosure in the cured product according to the present disclosure can be controlled by preparing the polymerizable composition according to the present disclosure.

The shape of the cured product according to the present disclosure can be controlled by using a mold when curing the polymerizable composition according to the present disclosure. The shape of the cured product according to the present disclosure can be easily controlled depending on the purpose, place of use, etc., and therefore can be applied to products in various fields. For example, the cured product according to the present disclosure can be applied to dome-shaped optical filters, spectacle lenses, goggles, and the like.

[Laminated body]
The laminate according to the present disclosure includes a support and a cured product according to the present disclosure.
The laminate according to the present disclosure has a cured product according to the present disclosure, that is, a cured product formed from the polymerizable composition according to the present disclosure containing the clathrate compound according to the present disclosure. Therefore, in the laminate according to the present disclosure, wet thermal decomposition of the specific squarylium compound is difficult to occur. Furthermore, in the laminate according to the present disclosure, bleed-out of the specific squarylium compound is unlikely to occur.

The support may or may not be transparent, but is preferably transparent.
In the present disclosure, "transparent" means that the average transmittance of visible light with a wavelength of 450 nm to 750 nm is 80% or more, preferably 90% or more.
In the present disclosure, the average transmittance of visible light is a value calculated from the amount of transmitted light relative to the amount of incident light of visible light in the above wavelength range by measuring a spectroscopic spectrum using a spectrophotometer. As the spectrophotometer, for example, an ultraviolet-visible spectrophotometer (model number: UV-1800) manufactured by Shimadzu Corporation can be suitably used. However, the spectrophotometer is not limited to this.

The support is not particularly limited, and examples thereof include glass and resin films.
Examples of resins that can be used as materials for the resin film include ester resins [for example, polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polybutylene terephthalate (PBT), and polycyclohexane dimethylene terephthalate (PCT)], olefin resins [for example, polypropylene (PP) and polyethylene (PE)], polyvinyl chloride (PVA), tricellulose acetate (TAC), polymethyl methacrylate (PMMA), polystyrene (PS), polycarbonate (PC), and the like. Among these, PET is preferable as the resin used as the material for the resin film, for example, from the viewpoint of versatility.

The thickness of the support is not particularly limited and can be appropriately selected depending on the use or purpose.
The thickness of the support can range, for example, from 100 μm to 10 mm.

The shape of the support is not particularly limited and can be appropriately selected depending on the use or purpose.
For example, the laminate according to the present disclosure may be a laminate having a lens-shaped optical filter, which is a cured product according to the present disclosure, on a lens-shaped support.

The support may have removability.
Examples of the support having releasability include a support whose one or both sides have been surface-treated with a release agent (so-called easy-peel treatment).
Examples of the release agent include silicone release agents (e.g. silicone), wax release agents (e.g. paraffin wax), and fluorine release agents (e.g. fluororesin).

The maximum absorption wavelength of the laminate according to the present disclosure is preferably within the range of 550 nm to 610 nm, more preferably within the range of 555 nm to 610 nm, and even more preferably within the range of 555 nm to 605 nm.
The maximum absorption wavelength of the laminate according to the present disclosure is measured using a spectrophotometer.

The laminate according to the present disclosure may have a two-layer structure of a support and a cured product according to the present disclosure, and may include a support, a cured product according to the present disclosure, and a layer other than the support and the cured product according to the present disclosure. The structure may have three or more layers (so-called other layers).
Examples of other layers include an adhesive layer, a surface protection layer (for example, an overcoat layer and a hard coat layer), a reflective layer (for example, a dielectric multilayer film and a photonic crystal film), and a colored layer.

The method for manufacturing the laminate according to the present disclosure is not particularly limited, and any known manufacturing method can be employed.
In the laminate according to the present disclosure, for example, the polymerizable composition according to the present disclosure is coated on a support to form a polymerizable composition layer, and then energy is applied to the formed polymerizable composition layer. It can be manufactured by curing the polymerizable composition layer.
Further, the laminate according to the present disclosure can be manufactured, for example, by the following method. After filling a desired mold with a polymerizable composition, energy is applied to the filled polymerizable composition to cure the polymerizable composition to obtain a cured product according to the present disclosure. Next, by attaching the obtained cured product according to the present disclosure to a support, a laminate according to the present disclosure can be manufactured.

Hereinafter, the present disclosure will be explained in detail with reference to Examples. However, the present disclosure is not limited to the following examples.

<Example 1A>
1. Synthesis of squarylium compound Squarylium compound G-13 was synthesized by the following method.

In a 50 mL eggplant flask equipped with a Dean-Stark trap, 0.53 g of 3-(2-methacryloyloxyethoxycarbonyl)-2,4-dimethylpyrrole, 3-(3-ethyl-2,4-dimethylpyrrole-2- 0.55 g of yl)-4-hydroxy-3-cyclobutene-1,2-dione, 4 mL of 2-butanol, and 8 mL of toluene were added. Then, the Dean-Stark trap was filled with a solution of 2-butanol/toluene=1/2 (volume ratio). The mixture in the eggplant flask was heated under reflux for 3 hours, and the produced water was distilled off in a Dean-Stark trap. The reaction mixture was cooled to room temperature and concentrated under reduced pressure. The residue was purified by silica gel column chromatography. 3 mL of methanol was added to the obtained compound, and the mixture was stirred at room temperature (25° C.) for 30 minutes. The precipitate was collected by filtration and dried to obtain 0.47 g of squarylium compound G-13.

It was confirmed by ¹ H-NMR that the obtained squarylium compound was squarylium compound G-13 having the above structure.
NMR data of squarylium compound G-13 is shown below.

¹ H-NMR (DMSO-d ₆ ) δ = 1.03 (t, 3H), 1.89 (s, 3H), 2.41 (q, 2H), 2.43 (s, 3H), 2.53 (s, 3H), 2.58 (s , 3H), 2.72 (s, 3H), 4.42 (m, 4H), 5.71 (s, 1H), 6.05 (s, 1H), 11.55 (s, 1H), 11.91 (s, 1H)

2. Production of clathrate compound Next, the following operation was performed to obtain the clathrate compound of Example 1A in which squarylium compound G-13 was included in host compound H-1.

A 50 mL eggplant flask was charged with 0.23 g of squarylium compound G-13, 10 mL of chloroform, and 0.5 g of triethylamine. Next, 0.41 g of 2,6-pyridinedicarbonyl dichloride and 0.27 g of p-xylylenediamine were added, and the mixture was stirred at room temperature (25° C.) for 8 hours. After stirring, water was added and the mixture was separated. After concentrating the organic layer, it was purified by silica gel column chromatography to obtain the clathrate compound of Example 1A.

It was confirmed that squarylium compound G-13 was clathrated into host compound H-1 by mass spectrometry of the obtained clathrate compound.
The mass-to-charge ratio (i.e., m/z) in the mass spectrum of the clathrate compound of Example 1A is shown below.
MS (m/z) = 987.4 ([M+1] ⁺ )

<Example 2A>
1. Synthesis of squarylium compound Squarylium compound G-66 was synthesized by the following method.

In a 50 mL eggplant flask equipped with a Dean-Stark trap, 0.54 g of 3-allyloxycarbonyl-2,4-dimethylpyrrole, 3-(3-ethyl-2,4-dimethylpyrrol-2-yl)-4- 0.66 g of hydroxy-3-cyclobutene-1,2-dione, 4 mL of 2-butanol, and 8 mL of toluene were added. Then, the Dean-Stark trap was filled with a solution of 2-butanol/toluene=1/2 (volume ratio). The mixture in the eggplant flask was heated under reflux for 1 hour, and the produced water was distilled off in a Dean-Stark trap. The reaction mixture was cooled to room temperature (25°C) and concentrated under reduced pressure. The residue was purified by silica gel column chromatography. After concentration, 5 mL of methanol was added to the residue, and the mixture was stirred at room temperature (25° C.) for 30 minutes. The precipitate was collected by filtration and dried to obtain 0.22 g of squarylium compound G-66.

It was confirmed by mass spectrometry that the obtained squarylium compound was squarylium compound G-66 having the above structure.
The mass-to-charge ratio (ie, m/z) in the mass spectrum of squarylium compound G-66 is shown below.
MS (m/z) = 381.2 ([M+1] ⁺ )

2. Production of clathrate compound Except for changing the squarylium compound from "G-13" to "G-66", the same operation as in the production of the clathrate compound in Example 1A was carried out, and the squarylium compound G-66 was converted into a host compound. The clathrate compound of Example 2A, which was clathrated into H-1, was obtained.

It was confirmed that squarylium compound G-66 was clathrated into host compound H-1 by mass spectrometry of the obtained clathrate compound.
The mass-to-charge ratio (i.e., m/z) in the mass spectrum of the clathrate compound of Example 2A is shown below.
MS (m/z) = 915.4 ([M+1] ⁺ )

<Example 3A>
1. Synthesis of squarylium compound Squarylium compound G-13 was obtained in the same manner as in Example 1A.

2. Production of clathrate compound A 50 mL eggplant flask was charged with 0.5 mmol of squarylium compound G-13, 0.5 mmol of β-cyclodextrin, and 20 mL of chloroform, and then stirred at room temperature (25° C.) for 5 hours. Next, the solvent was removed by concentration using an evaporator to obtain the inclusion compound of Example 3A in which squarylium compound G-13 was included in β-cyclodextrin as a host compound.

<Example 4A>
1. Synthesis of squarylium compound Squarylium compound G-66 was obtained in the same manner as in Example 2A.

2. Production of clathrate compound A 50 mL eggplant flask was charged with 0.5 mmol of squarylium compound G-66, 0.5 mmol of β-cyclodextrin, and 15 mL of chloroform, and then stirred at room temperature (25° C.) for 5 hours. Next, the solvent was removed by concentration using an evaporator to obtain the inclusion compound of Example 4A in which squarylium compound G-66 was included in β-cyclodextrin as a host compound.

<Example 5A>
1. Synthesis of squarylium compound Squarylium compound G-53 was synthesized by the following method.
First, intermediate G-53a was synthesized as follows.

In a 50 mL eggplant flask, add 0.83 g of 3-(2-methacryloyloxyethoxycarbonyl)-2,4-dimethylpyrrole, 0.42 g of 3,4-dimethoxy-3-cyclobutene-1,2-dione, and 4 mL of acetic acid. Added. The mixture in the eggplant flask was stirred at 40°C for 6 hours. The reaction mixture was cooled to room temperature (25°C). Ethyl acetate and water were added to the cooled reaction mixture to separate the layers. The organic layer was washed with aqueous sodium bicarbonate and then concentrated under reduced pressure. The residue was purified by silica gel column chromatography to obtain 0.27 g of Intermediate G-53a.

Next, intermediate G-53b was synthesized as follows.

0.25 g of G-53a, 2 mL of acetic acid, 1 mL of water, and 100 μL of concentrated hydrochloric acid were added to a 50 mL eggplant flask. The mixture in the eggplant flask was stirred at 60°C for 3 hours. The reaction mixture was cooled to room temperature (25°C). Ethyl acetate and water were added to the cooled reaction mixture to separate the layers. The organic layer was washed with aqueous sodium bicarbonate and then concentrated under reduced pressure. The residue was purified by silica gel column chromatography to obtain 0.10 g of Intermediate G-53b.

Next, squarylium compound G-53 was synthesized as follows.

0.10 g of G-53b, 0.04 g of phloroglucinol, 4 mL of 2-butanol, and 8 mL of toluene were added to a 50 mL eggplant flask equipped with a Dean-Stark trap. Then, the Dean-Stark trap was filled with a solution of 2-butanol/toluene=1/2 (volume ratio). The mixture in the eggplant flask was heated under reflux for 3 hours, and the produced water was distilled off in a Dean-Stark trap. The reaction mixture was cooled to room temperature (25°C) and concentrated under reduced pressure. The residue was purified by silica gel column chromatography. 3 mL of methanol was added to the obtained compound, and the mixture was stirred at room temperature (25° C.) for 30 minutes. The precipitate was collected by filtration and dried to obtain 0.02 g of squarylium compound G-53.

It was confirmed by mass spectrometry that the obtained squarylium compound was squarylium compound G-53 having the above structure.
The mass-to-charge ratio (ie, m/z) in the mass spectrum of squarylium compound G-53 is shown below.
MS (m/z) = 456.1 ([M+1] ⁺ )

2. Production of clathrate compound Except for changing the squarylium compound from "G-13" to "G-53", the same operation as in the production of the clathrate compound in Example 1A was carried out, and the squarylium compound G-53 was converted into a host compound. The clathrate compound of Example 5A, which was clathrated into H-1, was obtained.

It was confirmed that squarylium compound G-53 was clathrated into host compound H-1 by mass spectrometry of the obtained clathrate compound.
The mass-to-charge ratio (i.e., m/z) in the mass spectrum of the clathrate compound of Example 5A is shown below.
MS (m/z) = 990.3 ([M+1] ⁺ )

<Example 6A>
1. Synthesis of squarylium compound Squarylium compound G-67 was synthesized by the following method.

In a 50 mL eggplant flask equipped with a Dean-Stark trap, 0.99 g of 3-allyloxycarbonyl-2,4-dimethylpyrrole, 0.32 g of 3,4-dihydroxy-3-cyclobutene-1,2-dione, and 2- 5 mL of butanol and 10 mL of toluene were added. Then, the Dean-Stark trap was filled with a solution of 2-butanol/toluene=1/2 (volume ratio). The mixture in the eggplant flask was heated under reflux for 2 hours, and the produced water was distilled off in a Dean-Stark trap. The reaction mixture was cooled to room temperature (25°C) and concentrated under reduced pressure. 5 mL of methanol was added to the residue, and the mixture was stirred at room temperature (25° C.) for 30 minutes. The precipitate was collected by filtration and dried to obtain 0.26 g of squarylium compound G-67.

It was confirmed by mass spectrometry that the obtained squarylium compound was squarylium compound G-67 having the above structure.
The mass-to-charge ratio (ie, m/z) in the mass spectrum of squarylium compound G-67 is shown below.
MS (m/z) = 437.2 ([M+1] ⁺ )

2. Production of clathrate compound Except for changing the squarylium compound from "G-13" to "G-67", the same operation as in the production of the clathrate compound in Example 1A was carried out, and squarylium compound G-67 was converted into a host compound. The clathrate compound of Example 6A, which was clathrated into H-1, was obtained.

It was confirmed that squarylium compound G-67 was included in host compound H-1 by mass spectrometry of the obtained clathrate compound.
The mass-to-charge ratio (i.e., m/z) in the mass spectrum of the clathrate compound of Example 6A is shown below.
MS (m/z) = 971.4 ([M+1] ⁺ )

<Comparative example 1A>
1. Synthesis of squarylium compound Squarylium compound A-1 was synthesized by the following method.

In a 50 mL eggplant flask equipped with a Dean-Stark trap, 2.13 g of ethyl 2,4-dimethylpyrrole-3-carboxylate, 0.76 g of 3,4-dihydroxy-3-cyclobutene-1,2-dione, 2- 5 mL of butanol and 10 mL of toluene were added. Then, the Dean-Stark trap was filled with a solution of 1-butanol/toluene=1/1 (volume ratio). The mixture in the eggplant flask was heated under reflux for 1 hour, and the produced water was distilled off in a Dean-Stark trap. The reaction mixture was cooled to room temperature (25°C) and the precipitate was collected by filtration. The precipitate was washed with methanol and dried to obtain 1.30 g of squarylium compound A-1.

It was confirmed by mass spectrometry that the obtained squarylium compound was squarylium compound A-1 having the above structure.
The mass-to-charge ratio (ie, m/z) in the mass spectrum of squarylium compound A-1 is shown below.
MS (m/z) = 413.2 ([M+1] ⁺ )

2. Production of clathrate compound Except for changing the squarylium compound from "G-13" to "A-1", the same operation as in the production of the clathrate compound in Example 1A was carried out, and the squarylium compound A-1 was converted into a host compound. A clathrate compound of Comparative Example 1A, which was clathrated into H-1, was obtained.

It was confirmed by mass spectrometry of the obtained clathrate compound that squarylium compound A-1 was included in host compound H-1.
The mass-to-charge ratio (i.e., m/z) in the mass spectrum of the clathrate compound of Comparative Example 1A is shown below.
MS (m/z) = 947.4 ([M+1] ⁺ )

<Comparative example 2A>
The clathrate compound of Chemical Formula 11 described in paragraph [0082] of Japanese Patent No. 6894500 was synthesized and used as the clathrate compound of Comparative Example 2A in which squarylium compound A-2 was included in host compound H-1.

The structure of squarylium compound A-2 is shown below.

The structure of the clathrate compound of Comparative Example 2A is shown below.

The mass-to-charge ratio (i.e., m/z) in the mass spectrum of the clathrate compound of Comparative Example 2A is shown below.
MS (m/z) = 1405.6 ([M+1] ⁺ )

<Comparative example 3A>
Squarylium compound A-2 having the structure shown below was used as a compound in Comparative Example 3A.
Squarylium compound A-2 was synthesized by the following method.

A 50 mL eggplant flask was charged with 0.26 g of A-2a, 0.1 mL of a 10% concentration hydrochloric acid aqueous solution, 4 mL of ethanol, and 16 mL of dichloromethane. The mixture in the eggplant flask was stirred at 40°C for 24 hours, and the reaction mixture was cooled to room temperature (25°C). Chloroform and water were added to the cooled reaction mixture to separate the layers. The organic layer was washed with aqueous sodium bicarbonate and then concentrated under reduced pressure. The residue was purified by silica gel column chromatography to obtain 0.11 g of Intermediate A-2b.
Next, 0.10 g of Intermediate A-2b, 0.06 g of methacryloyloxyethyl isocyanate, a catalytic amount of dibutyltin dilaurate, and 20 mL of tetrahydrofuran (THF) were placed in a 50 mL eggplant flask and stirred for 8 hours. Ethyl acetate and water were added to separate the layers, and the organic layer was concentrated under reduced pressure. The residue was purified by silica gel column chromatography to obtain 0.05 g of squarylium compound A-2.

It was confirmed by mass spectrometry that the obtained squarylium compound was squarylium compound A-2 having the above structure.
The mass-to-charge ratio (ie, m/z) in the mass spectrum of squarylium compound A-2 is shown below.
MS (m/z) = 871.4 ([M+1] ⁺ )

<Comparative example 4A>
Squarylium compound G-66 was used as the compound of Comparative Example 4A.

[Evaluation (1)]
The following evaluations were performed on the clathrate compounds of Examples 1A to 6A, Comparative Example 1A and Comparative Example 2A, and the compounds of Comparative Example 3A and Comparative Example 4A.

1. Spectral Properties Using chloroform as a solvent, a solution was prepared in which the above-mentioned clathrate compound or the above-mentioned compound was dissolved so that the concentration in chloroform was 5 x 10 ^-6 mol/L (liter; hereinafter the same). Each of the prepared solutions was placed in a 1 cm cell, and the absorption spectrum was measured using a spectrophotometer [trade name: U-4100, manufactured by Hitachi, Ltd.] as a measuring device. The maximum absorption wavelength (λmax) was determined based on the measured absorption spectrum. The results are shown in Table 1.

2. Solubility in organic solvents 40.0 mg of the compound was weighed into a container, 2 mL of ethyl acetate was added, and the mixture was stirred at 30° C. for 30 minutes. The stirred solution was allowed to stand at room temperature (25°C) for 5 hours. The solution after standing was visually observed, and the solubility of the clathrate compound and the compound in an organic solvent was evaluated according to the following evaluation criteria. The results are shown in Table 1.
The evaluation result is preferably "A" or "B", with "A" being particularly preferred.

-Evaluation criteria-
A: Completely dissolved.
B: Turbidity is observed in the liquid, but the turbidity disappears when heated to 30°C and shaken.
C: Turbidity was observed in the liquid, and the cloudiness did not disappear even after heating to 30°C and shaking.
D: Precipitate is confirmed.

As shown in Table 1, the clathrate compounds of Examples 1A to 6A all had excellent solubility in organic solvents.
On the other hand, the clathrate compound of Comparative Example 1A, which is a conventional squarylium compound in which the guest molecule has a basic core of a pyrrole ring that does not have a polymerizable group, has a higher solubility in organic solvents than the clathrate compound of the example. It was confirmed that it was inferior to It was also confirmed that the clathrate compound of Comparative Example 2A, which is a conventional squarylium compound in which the guest molecule has a polymerizable group, has poor solubility in organic solvents compared to the clathrate compound of the example.
From the comparison between Comparative Example 2A and Comparative Example 3A, and the comparison between Example 2A and Example 4A and Comparative Example 4A, it was confirmed that inclusion improves the solubility in organic solvents.

<Example 1B>
1. Preparation of Polymerizable Composition P1 A polymerizable composition P1 having the composition shown below was prepared.
Polymerizable composition P1 was obtained by mixing the following components.

-Composition of polymerizable composition P1-
・Inclusion compound of Example 1A 0.3 parts by mass ・Resin 10.6 parts by mass [Benzyl methacrylate/acrylic acid copolymer (monomer mass ratio: 70/30)]
・Polymerizable compound 31.7 parts by mass [dipentaerythritol hexaacrylate, manufactured by Tokyo Kasei Kogyo Co., Ltd.]
・Photopolymerization initiator (1) 6.3 parts by mass [IRGACURE (registered trademark) OXE01, manufactured by BASF]
・Photopolymerization initiator (2) 2.1 parts by mass [2,4-diethylthioxanthone, manufactured by Tokyo Kasei Kogyo Co., Ltd.]
・Solvent (1) 28.6 parts by mass [Propylene glycol monomethyl ether acetate, manufactured by Fujifilm Wako Pure Chemical Industries, Ltd.]
・Solvent (2) 20.4 parts by mass [Cyclohexanone, manufactured by Fujifilm Wako Pure Chemical Industries, Ltd.]

2. Preparation of Photocured Film E1 The polymerizable composition P1 was applied by spin coating onto a glass substrate measuring 20 mm x 20 mm to form a polymerizable composition layer C1, which is a coating film of the polymerizable composition P1. The formed polymerizable composition layer C1 was dried at 80° C. for 3 minutes.
Next, the dried polymerizable composition layer C1 is exposed to light using a UV-LED black light [trade name: LLHA 165×25-22UV365YS1C, emission wavelength: 365 nm, manufactured by ITEC System Co., Ltd.], and half A photocured film D1 as a cured product was obtained. The exposure amount was 5 mJ/cm ² on average for the exposed area, and the light was irradiated for 20 seconds.
Next, the cured film E1 was obtained by heating the photocured film D1 at 190° C. for 20 minutes to completely cure it.

<Example 2B>
1. Preparation of polymerizable composition P2 In the preparation of polymerizable composition P1, the same procedure as that of polymerizable composition P1 was performed, except that "clathrate compound of Example 1A" was changed to "clathrate compound of Example 2A". In the same manner, polymerizable composition P2 was obtained.

2. Production of cured film E2 Cured film E2 was obtained in the same manner as in the production of cured film E1, except that "polymerizable composition P1" was changed to "polymerizable composition P2" in the production of cured film E1. .

<Example 3B>
1. Preparation of polymerizable composition P3 In the preparation of polymerizable composition P1, the same procedure as the preparation of polymerizable composition P1 was performed, except that "clathrate compound of Example 1A" was changed to "clathrate compound of Example 3A". In the same manner, polymerizable composition P3 was obtained.

2. Preparation of cured film E3 In the preparation of cured film E1, cured film E3 was obtained in the same manner as in the preparation of cured film E1, except that "polymerizable composition P1" was changed to "polymerizable composition P3". .

<Example 4B>
1. Preparation of polymerizable composition P4 In the preparation of polymerizable composition P1, the same procedure as that of polymerizable composition P1 was performed, except that "clathrate compound of Example 1A" was changed to "clathrate compound of Example 4A". In the same manner, polymerizable composition P4 was obtained.

2. Production of cured film E4 Cured film E4 was obtained in the same manner as in the production of cured film E1, except that "polymerizable composition P1" was changed to "polymerizable composition P4" in the production of cured film E1. .

<Example 5B>
1. Preparation of polymerizable composition P5 In the preparation of polymerizable composition P1, the same procedure as that of polymerizable composition P1 was performed, except that "clathrate compound of Example 1A" was changed to "clathrate compound of Example 5A". In the same manner, polymerizable composition P5 was obtained.

2. Production of cured film E5 Cured film E5 was obtained in the same manner as in the production of cured film E1, except that "polymerizable composition P1" was changed to "polymerizable composition P5" in the production of cured film E1. .

<Example 6B>
1. Preparation of polymerizable composition P6 In the preparation of polymerizable composition P1, the same procedure as that of polymerizable composition P1 was performed, except that "clathrate compound of Example 1A" was changed to "clathrate compound of Example 6A". In the same manner, polymerizable composition P6 was obtained.

2. Production of cured film E6 Cured film E6 was obtained in the same manner as the production of cured film E1, except that "polymerizable composition P1" was changed to "polymerizable composition P6" in production of cured film E1. .

<Comparative example 1B>
1. Preparation of Polymerizable Composition P7 In the preparation of Polymerizable Composition P1, the same procedure as the preparation of Polymerizable Composition P1 was performed, except that "clathrate compound of Example 1A" was changed to "clathrate compound of Comparative Example 1A". In the same manner, polymerizable composition P7 was obtained.

2. Production of cured film E7 Cured film E7 was obtained in the same manner as in the production of cured film E1, except that "polymerizable composition P1" was changed to "polymerizable composition P7" in the production of cured film E1. .

<Comparative example 2B>
1. Preparation of Polymerizable Composition P8 In the preparation of Polymerizable Composition P1, the same procedure as the preparation of Polymerizable Composition P1 was performed, except that "clathrate compound of Example 1A" was changed to "clathrate compound of Comparative Example 2A". In the same manner, polymerizable composition P8 was obtained.

2. Production of cured film E8 Cured film E8 was obtained in the same manner as in the production of cured film E1, except that "polymerizable composition P1" was changed to "polymerizable composition P8" in the production of cured film E1. .

<Comparative example 3B>
1. Preparation of Polymerizable Composition P9 In the preparation of Polymerizable Composition P1, the procedure was the same as in the preparation of Polymerizable Composition P1, except that "clathrate compound of Example 1A" was changed to "compound of Comparative Example 3A". Thus, a polymerizable composition P9 was obtained.

2. Production of cured film E9 Cured film E9 was obtained in the same manner as in the production of cured film E1, except that "polymerizable composition P1" was changed to "polymerizable composition P9" in the production of cured film E1. .

<Comparative example 4B>
1. Preparation of Polymerizable Composition P10 In the preparation of Polymerizable Composition P1, the procedure was the same as in the preparation of Polymerizable Composition P1, except that "clathrate compound of Example 1A" was changed to "compound of Comparative Example 4A". Thus, a polymerizable composition P10 was obtained.

2. Production of cured film E10 In production of cured film E1, cured film E10 was obtained in the same manner as in production of cured film E1, except that "polymerizable composition P1" was changed to "polymerizable composition P10". .

[Evaluation (2)]
1. Light fastness The light fastness of the squarylium compound during the photopolymerization process was evaluated.
Absorption spectra were measured for the films before and after light irradiation (that is, before and after exposure) in Examples 1B to 6B and Comparative Examples 1B to 4B. A spectrophotometer [trade name: U-4100, manufactured by Hitachi, Ltd.] was used as the measuring device. Based on the measured absorption spectrum, the absorbance at the maximum absorption wavelength (λmax) before and after the light irradiation was determined, and the retention rate of the absorbance at the maximum absorption wavelength (λmax) was calculated using the following formula. Then, based on the calculated retention rate, evaluation was performed according to the following evaluation criteria. The results are shown in Table 2.
The evaluation result is preferably "A" or "B", with "A" being particularly preferred.
Maintenance rate (%) = (Absorbance at λmax after light irradiation) / (Absorbance at λmax before light irradiation) x 100

-Evaluation criteria-
A: Retention rate is 85% or more.
B: The retention rate is in the range of 81% or more and less than 85%.
C: The retention rate is in the range of 77% or more and less than 81%.
D: Retention rate is less than 77%.

2. Solvent Resistance Solvent resistance was evaluated for the cured films E1 to E10 obtained in Examples 1B to 6B and Comparative Examples 1B to 4B.
The cured film was immersed in ethyl acetate for 3 minutes at room temperature (25°C). The absorption spectra of the membrane before and after immersion were measured. A spectrophotometer [trade name: U-4100, manufactured by Hitachi, Ltd.] was used as the measuring device. Based on the measured absorption spectrum, the absorbance at the maximum absorption wavelength (λmax) before and after immersion was determined, and the retention rate of the absorbance at the maximum absorption wavelength (λmax) was calculated using the following formula. Based on the calculated retention rate, evaluation was performed according to the following evaluation criteria. The results are shown in Table 2.
As for the evaluation result, "A" or "B" is preferable, and "A" is particularly preferable. The fact that the solvent resistance evaluation result is "A" or "B" suggests that bleed-out of the squarylium compound from the film is well suppressed.
Maintenance rate (%) = (Absorbance at λmax after immersion) / (Absorbance at λmax before immersion) x 100

-Evaluation criteria-
A: Retention rate is 97% or higher.
B: The retention rate is in the range of 90% or more and less than 97%.
C: Retention rate is less than 90%.

3. Heat and Moisture Resistance The cured films E1 to E10 obtained in Examples 1B to 6B and Comparative Examples 1B to 4B were evaluated for heat and humidity resistance.
The cured film was left standing for 48 hours in an environment with an ambient temperature of 85° C. and 85% RH. The absorption spectra of the film before and after standing were measured. A spectrophotometer [trade name: U-4100, manufactured by Hitachi, Ltd.] was used as the measuring device. Based on the measured absorption spectrum, the absorbance at the maximum absorption wavelength (λmax) before and after standing was determined, and the retention rate of the absorbance at the maximum absorption wavelength (λmax) was calculated using the following formula. Then, based on the calculated retention rate, evaluation was performed according to the following evaluation criteria. The results are shown in Table 2.
The evaluation result is preferably "A" or "B", with "A" being particularly preferred. The evaluation result of heat and humidity resistance being "A" or "B" means that the heat and humidity decomposition of the squarylium compound in the film is suppressed.
Maintenance rate (%) = (Absorbance at λmax after standing) / (Absorbance at λmax before standing) x 100

-Evaluation criteria-
A: Retention rate is 95% or more.
B: The retention rate is in the range of 85% or more and less than 95%.
C: Retention rate is less than 85%.

From the results shown in Table 2, it was revealed that the wet thermal decomposition of the squarylium compound was well suppressed in the film formed using the clathrate compound according to the present disclosure. Furthermore, it has been revealed that in the film formed using the clathrate compound according to the present disclosure, bleed-out of the squarylium compound is well suppressed. Furthermore, it has been revealed that the clathrate compound according to the present disclosure is difficult to decompose even when a film is formed by photocuring, and has excellent light fastness.

The disclosure of Japanese Patent Application No. 2022-122247 filed on July 29, 2022 is incorporated herein by reference in its entirety.
All documents, patent applications, and technical standards mentioned herein are specifically and exclusively incorporated by reference as if each individual document, patent application, and technical standard were specifically and individually indicated to be incorporated by reference. Incorporated herein by reference.

Claims

including a host molecule and a guest molecule,
The host molecule is a compound represented by the following formula (1) or a cyclic oligosaccharide,
A clathrate compound in which the guest molecule is a squarylium compound represented by the following formula (2).

In formula (1), R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , R 9 , R 10 , R 11 and R 12 are each independently a hydrogen atom or Represents a substituent. n1 and n3 each independently represent an integer of 0 to 3, and n2 and n4 each independently represent an integer of 0 to 4. When n2 is 2 or more, a plurality of R 2 may be combined to form a ring. When n4 is 2 or more, a plurality of R4s may be combined to form a ring. Ring A and ring B each independently represent an aromatic ring.

In formula (2), R 21 , R 23 , R 25 and R 27 each independently represent a hydrogen atom or a substituent. R 21 and R 23 , R 23 and R 25 , and R 25 and R 27 may each be bonded to form a ring. Ring C represents an aromatic ring. However, at least one of the substituents in formula (2) represents a group containing a polymerizable group having an ethylenically unsaturated bond.
The clathrate compound according to claim 1, wherein the compound represented by the formula (1) is a compound represented by the following formula (1-1).

In formula (1-1), R 1a , R 2a , R 3a , R 4a , R 5a , R 6a , R 7a , R 8a , R 9a , R 10a , R 11a and R 12a each independently represent hydrogen. Represents an atom or a substituent. n1 and n3 each independently represent an integer of 0 to 3, and n2 and n4 each independently represent an integer of 0 to 4. When n2 is 2 or more, a plurality of R 2a may be combined to form a ring. When n4 is 2 or more, a plurality of R 4a may be combined to form a ring. X 1 and X 2 each independently represent a carbon atom or a nitrogen atom.
The clathrate compound according to claim 1, wherein the squarylium compound is a compound represented by the following formula (2-1).

In formula (2-1), R 21a , R 22a , R 23a , R 24a , R 25a , R 26a , R 27a and R 28a each independently represent a hydrogen atom or a substituent. R 21a and R 23a , R 22a and R 24a , R 23a and R 25a , R 24a and R 26a , R 25a and R 27a , and R 26a and R 28a may each be combined to form a ring. . However, at least one of R 21a , R 22a , R 23a , R 24a , R 25a , R 26a , R 27a and R 28a represents a group containing a polymerizable group having an ethylenically unsaturated bond.
In the formula (2-1), R 21a , R 22a , R 23a , R 24a , R 25a and R 26a each independently represent a hydrogen atom, a halogen group, an alkyl group, an aryl group, an alkoxy group, an aryloxy group. , an acyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, a carbamoyl group, an acylamino group, an alkoxycarbonylamino group, a carbamoylamino group, or a cyano group, and R 27a and R 28a are each independently a hydrogen atom, an alkyl group, or a cyano group. Claim 3 which is an aryl group, and at least one of R 21a , R 22a , R 23a , R 24a , R 25a , R 26a , R 27a and R 28a contains a polymerizable group having an ethylenically unsaturated bond. Inclusion compounds as described.
The clathrate compound according to claim 3, wherein at least one of R 23a and R 24a in the formula (2-1) is a group represented by the following formula (3).

In formula (3), Q represents a single bond, an alkylene group, -O-, -S-, or -NR 29 -, R 29 represents a hydrogen atom or an alkyl group, and R 30 represents a hydrogen atom or an alkyl group. represents a group. * represents the bonding position.
2. The group containing a polymerizable group having an ethylenically unsaturated bond is a group containing a group represented by the following formula (4) or a group containing a group represented by the following formula (5). inclusion compound.

In formula (4), Y 1a represents a single bond or an alkylene group, Y 2a represents a single bond, -O- or -NR 39 -, R 39 represents a hydrogen atom or an alkyl group, and R 40 , represents a hydrogen atom or an alkyl group. * represents the bonding position.
In formula (5), R 41 , R 42 , R 43 , R 44 and R 45 each independently represent a hydrogen atom, a halogen group, an alkyl group, an alkoxy group, or a vinyl group, and Z represents a single bond or an alkylene group. represents a group. * represents the bonding position. However, at least one of R 41 , R 42 , R 43 , R 44 and R 45 represents a vinyl group.
A polymerizable composition comprising the clathrate compound according to any one of claims 1 to 6 and a polymerizable compound.
The polymerizable compound according to claim 7, wherein the polymerizable compound is at least one selected from the group consisting of (meth)acrylic acid, (meth)acrylic acid amide compound, (meth)acrylic acid ester compound, and styrene compound. Composition.
The polymerizable composition according to claim 7, further comprising a UV absorber.
The polymerizable composition according to claim 7, further comprising a polymer compound.
A resin composition comprising the clathrate compound according to any one of claims 1 to 6 and a resin.
A polymer containing a structural unit derived from the clathrate compound according to any one of claims 1 to 6.
A cured product of the polymerizable composition according to claim 7.
The cured product according to claim 13, which is an optical filter.
The cured product according to claim 13, wherein the maximum absorption wavelength is within the range of 550 nm to 610 nm.
A laminate comprising a support and the cured product according to claim 13.
The laminate according to claim 16, wherein the maximum absorption wavelength is within the range of 550 nm to 610 nm.
A method for producing the clathrate compound according to claim 1 or 2,
A step of reacting a compound represented by the following formula (6) with an aromatic compound in a solvent containing alcohol to obtain a compound represented by the formula (2),
a step of including the compound represented by the formula (2) in the host molecule;
A method for producing an clathrate compound containing.

In formula (6), R 21b , R 23b , R 25b and R 27b each independently represent a hydrogen atom or a substituent. R 21b and R 23b , R 23b and R 25b , and R 25b and R 27b may be bonded to each other to form a ring. However, at least one of R 21b , R 23b , R 25b and R 27b represents a group containing a polymerizable group having an ethylenically unsaturated bond.
A method for producing the clathrate compound according to any one of claims 3 to 5,
A step of reacting a compound represented by the following formula (6) and a compound represented by the following formula (7) in a solvent containing alcohol to obtain a compound represented by the formula (2-1);
a step of including the compound represented by the formula (2-1) in the host molecule;
A method for producing an clathrate compound containing.

In formulas (6) and (7), R 21b , R 22b , R 23b , R 24b , R 25b , R 26b , R 27b and R 28b each independently represent a hydrogen atom or a substituent. R 21b and R 23b , R 22b and R 24b , R 23b and R 25b , R 24b and R 26b , R 25b and R 27b , and R 26b and R 28b may each be combined to form a ring. . However, at least one of R 21b , R 22b , R 23b , R 24b , R 25b , R 26b , R 27b and R 28b represents a group containing a polymerizable group having an ethylenically unsaturated bond.
A method for producing the clathrate compound according to any one of claims 3 to 5,
A step of reacting a compound represented by the following formula (8) and a compound represented by the following formula (9) in a solvent containing alcohol to obtain a compound represented by the formula (2-1);
a step of including the compound represented by the formula (2-1) in the host molecule;
A method for producing an clathrate compound containing.

In formula (8), R 21c , R 23c , R 25c and R 27c each independently represent a hydrogen atom or a substituent. R 21c and R 23c , R 23c and R 25c , and R 25c and R 27c may be bonded to each other to form a ring. However, at least one of R 21c , R 23c , R 25c and R 27c represents a group containing a polymerizable group having an ethylenically unsaturated bond.