Composition and cured product

Abstract

To provide a composition capable of forming a cured material with excellent curability and low moisture permeability.SOLUTION: There is provided a composition which comprises a component (A) and at least one or more selected from a component (B) and a component (C). The component (A): a compound having a group represented by the following general formula (a-1) and a group represented by the following general formula (a-2), the component (B): a compound having a condensed alicyclic ring and at least one of an acryloyl group and a methacryloyl group, the component (C): an alicyclic hydrocarbon-based polymer. (wherein, Ra1 represents a hydrogen atom or a monovalent organic group having 1 or more and 30 or less carbon atoms, Ra2 represents a hydrogen atom or a methyl group, * represents a bonding position with other groups.)SELECTED DRAWING: None

Description

[Technical Field]

[0001] This invention relates to a composition and its cured product. [Background technology]

[0002] Organic thin-film elements such as organic electroluminescent (OLED) display elements and organic thin-film solar cells suffer from rapid degradation and a shortened lifespan when exposed to the outside air. To improve the stability and durability of OLED display elements and organic thin-film elements, research is underway on sealing technologies that shield them from moisture and oxygen in the atmosphere. For example, Patent Document 1 proposes a composition comprising, as a photocurable component, an alicyclic monofunctional (meth)acrylate monomer, a (meth)acrylate monomer having a polar group, a polyfunctional photocurable component containing at least one functional group selected from the group consisting of (meth)acryloyl group, vinyl ether group, epoxy group and oxetanyl group, and a photopolymerization initiator. Patent Document 2 proposes a composition comprising a polymerizable monomer containing halogen atoms such as fluorine and bromine atoms, a crosslinkable monomer, and a polymerization initiator. [Prior art documents] [Patent Documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2020-7449 [Patent Document 2] International Publication No. 2020 / 149384 [Overview of the project] [Problems that the invention aims to solve]

[0004] However, no composition has yet been obtained that can form a cured product with excellent curability and low moisture permeability.

[0005] The present invention has been made in view of the above circumstances, and aims to provide a composition that can form a cured product having excellent curability and low moisture permeability. [Means for solving the problem]

[0006] In order to solve the above problems, the inventors diligently investigated the causes of the above problems and found that the above problems can be solved by a composition that combines a specific compound with a monomer or polymer having a specific alicyclic structure.

[0007] In other words, the present invention provides a composition comprising the following component (A) and at least one selected from component (B) and component (C).

[0008] (A) Component: A compound having a group represented by the following general formula (a-1) and a group represented by the following general formula (a-2). (B) Component: A compound having a condensed alicyclic ring and at least one of an acryloyl group and a methacryloyl group. (C) Component: Alicyclic hydrocarbon polymer

[0009] [ka] In the formula, R a1 This represents a hydrogen atom or a monovalent organic group having 1 to 30 carbon atoms. R a2 This represents a hydrogen atom or a methyl group. * indicates the bonding position with other groups.

[0010] According to the present invention, it is possible to form a cured product that has excellent curability and low moisture permeability.

[0011] In the present invention, it is preferable that component (B) is a compound having one condensed alicyclic ring in one molecule. This is because it can form a cured product that has excellent curability and low moisture permeability.

[0012] In the present invention, it is preferable that the content of component (A) is 1 part by mass or more and 90 parts by mass or less per 100 parts by mass of the solid content of the composition. This is because the above composition has excellent curability and can form a cured product with low moisture permeability.

[0013] In the present invention, it is preferable that the composition be used for forming a moisture barrier. This is because the composition has excellent curability and can form a cured product with low moisture permeability.

[0014] The present invention provides a cured product of the above-described composition. [Effects of the Invention]

[0015] The present invention provides a composition that can form a cured product having excellent curability and low moisture permeability. [Modes for carrying out the invention]

[0016] This invention relates to a composition and its cured product. The compositions and cured products of the present invention will be described in detail below.

[0017] In this specification, the number of carbon atoms in a group refers to the number of carbon atoms in the group after substitution, if a hydrogen atom in the group is substituted by a substituent. For example, if a hydrogen atom in an alkyl group having 1 to 20 carbon atoms is substituted, the number of carbon atoms, from 1 to 20, refers to the number of carbon atoms after the hydrogen atom substitution, and not to the number of carbon atoms before the hydrogen atom substitution. Furthermore, in this specification, the specification for the number of carbon atoms in a group in which a methylene group has a predetermined number of carbon atoms is replaced by a divalent group refers to the number of carbon atoms in the group after substitution.

[0018] In this specification, "solids content of the composition" refers to the total content of all components in the composition excluding the solvent.

[0019] In this specification, (meth)acrylate represents at least one of a compound having an acryloyl group and a compound having a methacryloyl group.

[0020] A. Composition First, the composition of the present invention will be described. The composition of the present invention comprises the following component (A) and at least one selected from component (B) and component (C). (A) Component: A compound having a group represented by the following general formula (a-1) and a group represented by the following general formula (a-2). (B) Component: A compound having a condensed alicyclic ring and at least one of an acryloyl group and a methacryloyl group. (C) Component: Alicyclic hydrocarbon polymer

[0021] [ka] In the formula, R a1 This represents a hydrogen atom or a monovalent organic group having 1 to 30 carbon atoms. R a2 This represents a hydrogen atom or a methyl group. * indicates the bonding position with other groups.

[0022] According to the present invention, the above composition can form a cured product that has excellent curability and low moisture permeability. The following describes each component that constitutes the composition of the present invention.

[0023] A1. (A) component The composition of the present invention comprises, as component (A), a compound having a group represented by the following general formula (a-1) and a group represented by the following general formula (a-2).

[0024] [ka]

[0025] In formula (a-1), R a1represents a hydrogen atom or a monovalent organic group having 1 to 30 carbon atoms. In formula (a-2), R a2 represents a hydrogen atom or a methyl group.

[0026] R a1 Examples of the monovalent organic group having 1 to 30 carbon atoms represented by include an aliphatic hydrocarbon group having 1 to 30 carbon atoms, an aromatic hydrocarbon group having 6 to 30 carbon atoms, a heterocyclic group having 2 to 30 carbon atoms, and one or more methylene groups of the aliphatic hydrocarbon group, the aromatic hydrocarbon group or the heterocyclic group being replaced by one or more divalent groups selected from the group consisting of -O-, -S-, -CO-, -OCO-, -COO-, -NR 1 -, -NR 1 -CO-, -CO-NR 1 - (hereinafter also referred to as "-O- etc."). One or more hydrogen atoms of the aliphatic hydrocarbon group, the aromatic hydrocarbon group, the heterocyclic group, and the group in which the methylene group thereof is replaced by -O- etc. may be replaced by a halogen atom, a cyano group, a nitro group, -SO2H, -OR 2 , -COOR 2 , -CO-R 2 , -SR 2 . The above R 1 and R 2 each independently represent a hydrogen atom, a hydrocarbon group having 1 to 20 carbon atoms, a group having 1 to 20 carbon atoms in which one or more hydrogen atoms in the hydrocarbon group are replaced by a halogen atom, a cyano group, a nitro group or a hydroxy group, or a group in which one or more methylene groups in these groups are replaced by -O- etc. under the condition that oxygen atoms are not adjacent to each other. R 1 and R 2 Examples of the hydrocarbon group having 1 to 20 carbon atoms represented by include groups having predetermined carbon atom numbers among the groups exemplified as the aliphatic hydrocarbon group having 1 to 30 carbon atoms, the aromatic hydrocarbon group having 6 to 30 carbon atoms or the heterocyclic group having 3 to 30 carbon atoms represented by the above R a1 .

[0027] The above aliphatic hydrocarbon groups having 1 to 30 carbon atoms represent groups having 1 to 30 carbon atoms that do not contain ring structures such as aromatic rings or heterocycles. Specific examples of the above-mentioned aliphatic hydrocarbon groups having 1 to 30 carbon atoms include, for example, chain-like saturated hydrocarbon groups having 1 to 30 carbon atoms, chain-like unsaturated hydrocarbon groups having 2 to 30 carbon atoms, and alicyclic hydrocarbon groups having 3 to 30 carbon atoms.

[0028] The above-mentioned chain-like saturated hydrocarbon group having 1 to 30 carbon atoms represents a group that does not contain an alicyclic structure and does not contain carbon-carbon unsaturated bonds. Specific examples of the above-mentioned chain-like saturated hydrocarbon group having 1 to 30 carbon atoms include, for example, linear or branched alkyl groups having 1 to 30 carbon atoms.

[0029] Specific examples of linear or branched alkyl groups having 1 to 30 carbon atoms include, for example, methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, sec-butyl group, tert-butyl group, n-amyl group, sec-amyl group, tert-amyl group, neopentyl group, n-hexyl group, sec-hexyl group, n-heptyl group, n-octyl group, sec-octyl group, tert-octyl group, 2-ethylhexyl group, nonyl group, decyl group, undecyl group, lauryl group, tridecyl group, myristyl group, pentadecyl group, heptadecyl group, stearyl group, nonadecyl group, eicosyl group, and the like.

[0030] The above-mentioned chain-like unsaturated hydrocarbon groups having 2 to 30 carbon atoms represent groups that do not contain an alicyclic structure and contain carbon-carbon unsaturated bonds. Specific examples of the above-mentioned chain-like unsaturated hydrocarbon groups having 2 to 30 carbon atoms include, for example, linear or branched alkenyl groups having 2 to 30 carbon atoms, linear or branched alkynyl groups having 2 to 30 carbon atoms, and so on.

[0031] The above-mentioned linear or branched alkenyl group having 2 to 30 carbon atoms represents a linear or branched alkyl group having 1 to 30 carbon atoms, wherein at least one methylene group has a carbon-carbon double bond. Specific examples of the linear or branched alkenyl groups having 2 to 30 carbon atoms include, for example, vinyl group, 2-propenyl group, 1,1-dimethyl-2-propenyl group, 2-methyl-butenyl group, 3-methyl-2-butenyl group, 3-methyl-3-butenyl group, 2-methyl-3-butenyl group, oleyl group, linoleyl group, and the like.

[0032] The linear or branched alkynyl group having 2 to 30 carbon atoms described above represents a linear or branched alkyl group having 1 to 30 carbon atoms in which at least one methylene group has a carbon-carbon triple bond. Specific examples of the linear or branched alkynyl group having 2 to 30 carbon atoms include, for example, the ethynyl group and the 2-propynyl group.

[0033] The above-mentioned alicyclic hydrocarbon group having 3 to 30 carbon atoms represents a group obtained by abstracting one hydrogen atom from an alicyclic hydrocarbon, or a group in which one or more hydrogen atoms of an aliphatic hydrocarbon group are replaced by an alicyclic hydrocarbon, and has 3 to 30 carbon atoms. The alicyclic hydrocarbon in the above-mentioned alicyclic hydrocarbon group having 3 to 30 carbon atoms may be a saturated alicyclic or an unsaturated alicyclic, may have a monocyclic structure or a polycyclic structure having multiple rings, may have a spiro structure in which two rings share some of the carbon atoms of the rings, and may have one or more alicyclic hydrocarbons in a single alicyclic hydrocarbon group. Specific examples of the above-mentioned alicyclic hydrocarbon groups having 3 to 30 carbon atoms include, for example, saturated alicyclic hydrocarbon groups having 3 to 30 carbon atoms and unsaturated alicyclic hydrocarbon groups having 3 to 30 carbon atoms.

[0034] The above-mentioned saturated alicyclic hydrocarbon groups having 3 to 30 carbon atoms refer to alicyclic hydrocarbon groups having 3 to 30 carbon atoms, including saturated alicyclic hydrocarbons but not unsaturated alicyclic hydrocarbons. Specific examples of saturated alicyclic hydrocarbons include monocyclic cycloalkanes such as cyclopropane, cyclobutane, cyclopentane, cyclohexane, cycloheptane, cyclooctane, cyclononane, and cyclodecane; polycyclic cycloalkanes such as decahydronaphthalene, norbornane, norcalane, hausan, basquetan, iaisan, bicycloundecane, adamantane, and isobornane; and spirocyclic cycloalkanes such as spiro[5.5]undecane. A polycyclic structure refers to a bicyclic or polycyclic structure in which the constituent rings share one or more atoms, or two or more atoms. Specific examples of the saturated alicyclic hydrocarbon group having 3 to 30 carbon atoms include, for example, cycloalkyl groups having 3 to 30 carbon atoms and cycloalkylalkyl groups having 4 to 30 carbon atoms.

[0035] The above-mentioned cycloalkyl group having 3 to 30 carbon atoms represents a group having 3 to 30 carbon atoms obtained by removing one hydrogen atom from the above-mentioned saturated alicyclic hydrocarbon. Specific examples of the above-mentioned cycloalkyl groups having 3 to 30 carbon atoms include, for example, cyclopropyl group, cyclobutyl group, cyclopentyl group, cyclohexyl group, 4-methylcyclohexyl group, cycloheptyl group, cyclooctyl group, cyclononyl group, cyclodecyl group, isobornyl group, adamantyl group, decahydronaphthyl group, dicyclopentanyl group, pentacyclodecanyl group, octahydropentanyl group, bicyclo[1.1.1]pentanyl group, and the like.

[0036] The above-mentioned cycloalkylalkyl group having 4 to 30 carbon atoms represents a group having 4 to 30 carbon atoms in which the hydrogen atoms of the alkyl group are replaced by a cycloalkyl group. Specific examples of the above-mentioned cycloalkylalkyl groups having 4 to 30 carbon atoms include, for example, cyclopropylmethyl group, 2-cyclobutylethyl group, 3-cyclopentylpropyl group, cyclohexylmethyl group, 2-cyclododecylethyl group, 3-adamantylpropyl group, and decahydronaphthyl group.

[0037] The above-mentioned unsaturated alicyclic hydrocarbon group having 3 to 30 carbon atoms represents an alicyclic hydrocarbon group having 3 to 30 carbon atoms, including an unsaturated alicyclic hydrocarbon. The above-mentioned unsaturated alicyclic hydrocarbon group represents an alicyclic hydrocarbon with an unsaturated bond. Specific examples of the unsaturated alicyclic hydrocarbon groups having 3 to 30 carbon atoms include, for example, cyclopropenyl groups, cyclobutenyl groups, cyclopentenyl groups, cyclohexenyl groups, cyclooctateraeenyl groups, dicyclopentenyl groups, and other cycloalkenes.

[0038] Furthermore, specific examples of groups in which a methylene group in an aliphatic hydrocarbon group having 1 to 30 carbon atoms is substituted with -O-, etc. include, for example, groups in which some methylene groups of an alkyl group such as methoxyethyl, methoxyethoxyethyl, methoxyethoxyethoxyethyl, 3-methoxybutyl, ethoxyethyl, and ethoxyethoxyethyl are substituted with -O-, etc.; groups that combine saturated alicyclic hydrocarbons such as cyclopentyloxyethyl, cyclohexyloxyethyl, cyclopentyloxyethoxyethyl, and cyclohexyloxyethoxyethyl groups with groups in which some methylene groups of an alkyl group are substituted with -O-, etc.; and groups that combine unsaturated alicyclic hydrocarbons such as dicyclopentenyloxyethyl with groups in which some methylene groups of an alkyl group are substituted with -O-, etc.

[0039] The above-mentioned aromatic hydrocarbon groups having 6 to 30 carbon atoms include groups having 6 to 30 carbon atoms that contain an aromatic hydrocarbon ring but do not contain a heterocycle. Specific examples of the above-mentioned aromatic hydrocarbon groups having 6 to 30 carbon atoms include, for example, aryl groups having 6 to 30 carbon atoms, arylalkyl groups having 7 to 30 carbon atoms, arylalkenyl groups having 8 to 30 carbon atoms, and groups in which one or more hydrogen atoms of these groups are substituted with substituents described later.

[0040] The above-mentioned aryl group having 6 to 30 carbon atoms represents a group obtained by removing one hydrogen atom from one aromatic ring. The above-mentioned aromatic ring represents an aromatic ring and a fused ring formed by said aromatic ring. The aryl group may have one aromatic ring or two or more. When the aryl group contains two or more aromatic rings, the aromatic rings may be connected by direct bonds, -O-, -CO-, -OCO-, -COO-, an alkanediyl group having 1 to 5 carbon atoms, or a combination of two or more of these groups, and the multiple aromatic rings may have the same structure or different structures. Examples of the above-mentioned alkanediyl group having 1 to 5 carbon atoms include the ethylene group, propylene group, butylene group, 2-methylpropylene group, and 1,1-dimethylmethylene group. Specific examples of aryl groups having 6 to 30 carbon atoms include, for example, phenyl, biphenyl, naphthyl, anthracenyl, phenanthryl, and pyrenyl groups.

[0041] The above-mentioned arylalkyl groups having 7 to 30 carbon atoms represent groups having 7 to 30 carbon atoms in which one or more hydrogen atoms in the alkyl group are substituted with an aryl group. Specific examples of the above-mentioned arylalkyl groups having 7 to 50 carbon atoms include, for example, benzyl group, 9-fluorenylmethyl group, α-methylbenzyl group, α,α-dimethylbenzyl group, phenylethyl group, and naphthylpropyl group.

[0042] The above-mentioned arylalkenyl group having 8 to 30 carbon atoms is a group in which the hydrogen atoms of an alkenyl group are substituted with the above-mentioned aryl group, and represents a group having 8 to 30 carbon atoms in which at least one methylene group is replaced with -CH=CH- in the above-mentioned arylalkyl group having 7 to 30 carbon atoms. Specific examples of the aryl alkenyl group having 8 to 30 carbon atoms include, for example, the phenyl vinyl group, the 1-phenylethenyl group, the 2,2-diphenylethenyl group, and the 2-phenyl-2-naphthylethenyl group.

[0043] Furthermore, other specific examples of aromatic hydrocarbon groups having 6 to 30 carbon atoms include, for example, groups that combine aromatic hydrocarbon groups such as phenoxyethyl groups and phenoxyethoxyethyl groups with a chain-like ether group.

[0044] In this specification, "aromatic hydrocarbon group having 6 to 20 carbon atoms" refers to the number of carbon atoms in the "aromatic hydrocarbon group," not "aromatic hydrocarbon." The same applies to other numbers of carbon atoms.

[0045] R a1 The heterocyclic group having 2 to 30 carbon atoms, as represented above, includes groups obtained by abstracting one hydrogen atom from a heterocyclic group (hereinafter sometimes simply referred to as a "heterocyclic group"), and groups in which one or more hydrogen atoms of an aliphatic hydrocarbon group are replaced by a heterocyclic group. The above heterocycle represents a ring structure containing a carbon atom and a heteroatom. Examples of heteroatoms that make up a heterocycle include sulfur, nitrogen, and oxygen atoms. Furthermore, in this invention, fused rings of heterocycles and aromatic hydrocarbon rings, such as quinoline rings, benzofuran rings, and carbazole rings, are also included in the category of heterocycles.

[0046] In the present invention, a ring containing a structure in which two carbonyl groups are linked to an ether group, and a ring containing a structure in which two carbonyl groups are linked to an imide group are also included as heterocycles.

[0047] Rings containing a structure in which two carbonyl groups are linked to the above-mentioned ether group include, for example, the ring shown in formula (4) below.

[0048] [ka]

[0049] Rings containing a structure in which two carbonyl groups are linked to the above-mentioned imide group include, for example, the ring shown in formula (5) below.

[0050] [ka]

[0051] The aliphatic hydrocarbon groups used in heterocyclic groups are similar to those exemplified above as aliphatic hydrocarbon groups having 1 to 30 carbon atoms.

[0052] Specific examples of heterocyclic groups with 2 to 30 carbon atoms include epoxy groups, glycidyl groups, β-methylglycidyl groups, β-ethylglycidyl groups, 3,4-epoxycyclohexylmethyl groups, oxetanyl groups, 2-oxetanemethyl groups, 3-methyl-3-oxetanemethyl groups, 3-ethyl-3-oxetanemethyl groups, oxyranyl groups, tetrahydropyranyl groups, morpholinyl groups, thiomorpholinyl groups, dioxanyl groups, thiophene groups, methylthiophene groups, hexylthiophene groups, benzothiophene groups, pyrrole groups, pyrrolidine groups, imidazole groups, imidazolidine groups, imidazoline groups, pyrazole groups, pyrazolidinyl groups, piperidinyl groups, piperazinyl groups, tetrahydrofurfuryl groups, and dioxazolanyl groups. In this specification, the "2 to 30" in "heterocyclic group having 2 to 30 carbon atoms" refers to the number of carbon atoms in the "heterocyclic group," not the "heterocyclic group."

[0053] In the present invention, it is preferable that component (A) contains a compound represented by the following general formula (A-1). This is because the above composition has excellent curability and can form a cured product with low moisture permeability.

[0054] [ka] In the formula, R a1 This is R in the above equation (a-1). a1 It represents the same thing, R a2 This is R in the above equation (a-2). a2 It represents the same thing, L 1 This represents a divalent aliphatic hydrocarbon group with 1 to 10 carbon atoms.

[0055] The above L 1 Examples of divalent aliphatic hydrocarbon groups having 1 to 10 carbon atoms, as represented by the above aliphatic hydrocarbon group having 1 to 30 carbon atoms, include those having a predetermined number of carbon atoms and further having one hydrogen atom abstracted out. Specific examples of the above-mentioned divalent aliphatic hydrocarbon group having 1 to 10 carbon atoms include, for example, divalent linear saturated hydrocarbon groups having 1 to 10 carbon atoms, divalent linear unsaturated hydrocarbon groups having 2 to 10 carbon atoms, divalent alicyclic hydrocarbon groups having 3 to 10 carbon atoms, or groups in which one or more methylene groups in these groups are substituted with the above-mentioned -O- etc. under the condition that oxygen atoms are not adjacent.

[0056] The above-mentioned divalent chain-like saturated hydrocarbon group having 1 to 10 carbon atoms includes a group obtained by abstracting one hydrogen atom from a chain-like saturated hydrocarbon group having a predetermined number of carbon atoms, specifically from a group having 1 to 30 carbon atoms. Specific examples of the above-mentioned divalent chain-like saturated hydrocarbon groups having 1 to 10 carbon atoms include, for example, methylene groups, ethylene groups, propylene groups, isopropylene groups, n-butylene groups, sec-butylene groups, tert-butylene groups, and so on.

[0057] The above-mentioned divalent chain-like unsaturated hydrocarbon group having 2 to 10 carbon atoms includes a group obtained by abstracting one hydrogen atom from a chain-like unsaturated hydrocarbon group having 2 to 30 carbon atoms that has a predetermined number of carbon atoms. Specific examples of the above-mentioned divalent chain-like unsaturated hydrocarbon groups having 2 to 10 carbon atoms include vinylene, ethenylene, 2-propenylene, 1,1-dimethyl-2-propenylene, 2-methyl-butenylene, 3-methyl-2-butenylene, 3-methyl-3-butenylene, and 2-methyl-3-butenylene.

[0058] The above-mentioned divalent alicyclic hydrocarbon group having 3 to 10 carbon atoms includes a group obtained by abstracting one hydrogen atom from a group having a predetermined number of carbon atoms in the above-mentioned alicyclic hydrocarbon group having 3 to 30 carbon atoms. Specific examples of the above-mentioned divalent alicyclic hydrocarbon group having 3 to 10 carbon atoms include, for example, cycloalkylene groups having 3 to 10 carbon atoms. Specific examples of cycloalkylene groups having 3 to 10 carbon atoms include, for example, cyclopropylene, cyclobutylene, cyclopentylene, and cyclohexylene groups.

[0059] The above-mentioned divalent chain-like saturated hydrocarbon group having 1 to 10 carbon atoms, the above-mentioned chain-like unsaturated hydrocarbon group having 2 to 10 carbon atoms, and the above-mentioned divalent alicyclic hydrocarbon group having 3 to 10 carbon atoms may be groups in which one or more methylene groups in these groups are replaced with the above-mentioned -O- etc. under the condition that oxygen atoms are not adjacent to each other.

[0060] In the present invention, L in the above general formula (A-1) 1However, it is preferable that one or more methylene groups in a chain-like saturated hydrocarbon group having 1 to 10 carbon atoms are replaced by the above-mentioned -O-, etc., and in particular, it is preferable that one or more methylene groups in a chain-like saturated hydrocarbon group having 2 to 8 carbon atoms are replaced by the above-mentioned -O-, etc., and especially preferable that one or more methylene groups in a chain-like saturated hydrocarbon group having 2 to 5 carbon atoms are replaced by the above-mentioned -O-. This is because the above composition can have excellent curability.

[0061] In the present invention, component (A) is preferably a compound represented by the following general formula (A-2). This is because the above composition can have excellent curability.

[0062] [ka] In the formula, R a1 This is R in the above equation (a-1). a1 It represents the same thing, R a2 This is R in the above equation (a-2). a2 It represents the same thing.

[0063] Specific examples of compounds represented by formula (A-2) include, for example, the compounds described in Japanese Patent Publication No. 2013-144798. In the composition of the present invention, component (A) may be one compound, or two or more compounds may be combined in any ratio.

[0064] From the viewpoint of coating properties and adhesion, R a1 The monovalent organic group represented is preferably a hydrocarbon group having 1 to 30 carbon atoms, more preferably a hydrocarbon group having 1 to 10 carbon atoms, particularly preferably a hydrocarbon group having 1 to 5 carbon atoms, more preferably a hydrocarbon group having 1 to 3 carbon atoms, and most preferably a hydrocarbon group having 1 to 2 carbon atoms. This is because the effects of the present invention become more pronounced.

[0065] The hydrocarbon group having 1 to 30 carbon atoms is preferably a chain-like saturated hydrocarbon group having 1 to 30 carbon atoms, a chain-like unsaturated hydrocarbon group having 2 to 30 carbon atoms, or an alicyclic hydrocarbon group having 3 to 30 carbon atoms. In particular, it is preferably a chain-like saturated hydrocarbon group having 1 to 30 carbon atoms or a chain-like unsaturated hydrocarbon group having 2 to 30 carbon atoms. It is especially preferably a chain-like saturated hydrocarbon group having 1 to 30 carbon atoms, and in particular, it is especially preferably a chain-like saturated hydrocarbon group having 1 to 10 carbon atoms, and in particular, it is especially preferably a chain-like saturated hydrocarbon group having 1 to 5 carbon atoms, and in particular, it is especially preferably a chain-like saturated hydrocarbon group having 1 to 3 carbon atoms, and in particular, it is especially preferably a chain-like saturated hydrocarbon group having 1 to 2 carbon atoms. This is because the above composition has excellent curability and can form a cured product with low moisture permeability.

[0066] In the present invention, R a2 However, hydrogen atoms are preferable. This is because the above composition has excellent curability and can form a cured product with low moisture permeability.

[0067] In the composition of the present invention, the content of component (A) is preferably 1 part by mass or more and 80 parts by mass or less, more preferably 3 parts by mass or more and 70 parts by mass or less, more preferably 5 parts by mass or more and 60 parts by mass or less, and more preferably 10 parts by mass or more and 50 parts by mass or less. By setting the numerical range as described above, the composition can form a cured product that has excellent curability and low moisture permeability.

[0068] In the composition of the present invention, the content of component (A) is preferably 1 part by mass or more and 90 parts by mass or less per 100 parts by mass of the solid content of the composition, more preferably 3 parts by mass or more and 70 parts by mass or less, and particularly preferably 5 parts by mass or more and 50 parts by mass or less. This is because by setting the content within the above numerical range, the composition can form a cured product that has excellent curability and low moisture permeability.

[0069] A2.(B) Component The composition of the present invention may include, as component (B), a compound having a condensed alicyclic ring and at least one of an acryloyl group and a methacryloyl group. However, polymers are not included in component (B).

[0070] The term "condensed alicyclic ring" above refers to a ring structure in which two or more atoms constituting an alicyclic ring are simultaneously shared as constituent atoms of another ring. The alicyclic ring in a condensed alicyclic ring may be a saturated alicyclic ring or an unsaturated alicyclic ring having a double bond that does not possess aromaticity. Furthermore, if the alicyclic ring and the benzene ring share two or more constituent atoms of the ring, they are included in the definition of a condensed alicyclic ring. Specific examples of the above-mentioned condensed alicyclic rings include, for example, the ring structures of bicyclobutane, bicyclopentane, bicyclohexane, bicycloheptane, octahydropentalene, octahydro-1H-indene, 2,4,5,6,7,7a-hexahydroindene, decahydronaphthalene (decalin), bicycloundecane, norbornane, norbornene, isobornane, norbornadiene, dicyclopentadiene, tetrahydrodicyclopentadiene, dihydrodicyclopentadiene, octahydrophenanthrene, tetracyclocyclododecane, adamantane, twistan, cubane, basquetan, and hausan.

[0071] In the present invention, it is preferable that the alicyclic ring constituting the condensed alicyclic ring has 3 to 8 carbon atoms, and more preferably 4 to 6 carbon atoms, and particularly preferably 5 carbon atoms. This is because the above composition has excellent curability and can form a cured product with low moisture permeability. Furthermore, in the present invention, it is preferable that the condensed alicyclic ring has a ring structure having 2 to 5 alicyclic rings, more preferably a ring structure having 3 to 4 alicyclic rings, particularly preferably a ring structure having 3 alicyclic rings, and most preferably tetrahydrocyclopentadiene or 5,6-dihydrodicyclopentadiene. This is because the above composition can form a cured product with even lower moisture permeability.

[0072] In the present invention, the number of condensed alicyclic rings in one molecule is preferably 1 to 5, more preferably 1 to 3, and particularly preferably 1. This is because the above composition has excellent curability and can form a cured product with low moisture permeability. The number of condensed alicyclic rings refers to the number of ring structures composed solely of multiple alicyclic rings. When a ring structure composed solely of multiple alicyclic rings is linked by a linking group, as described later, each linked ring structure shall be counted as a separate condensed alicyclic ring.

[0073] In the present invention, the compound may be one in which a condensed alicyclic ring and at least one of an acryloyl group or a methacryloyl group are directly bonded, but it is preferable that the compound is one in which a condensed alicyclic ring and at least one of an acryloyl group or a methacryloyl group are bonded via a linking group. This is because the above composition can exhibit even better curability.

[0074] Examples of the above-mentioned linking groups include alkylene groups having 1 to 4 carbon atoms, ether bonds (-O-), urethane bonds (-NH-CO-O-), urea bonds (-NH-CO-NH-), ester bonds (-CO-O-), amide bonds (-NH-CO-), sulfonic acid ester bonds (-SO2-O-), sulfonamide bonds (-SO2-NH-), and the like. The condensed alicyclic ring and the acryloyl group or methacryloyl group may be linked via a combination of these linking groups. In the present invention, the linking group preferably contains an oxygen atom, and more preferably is a group consisting of a combination of an ether bond and an alkylene group, and particularly preferably is a group in which an ether bond and an alkylene group with two or more carbon atoms are linked. This is because the above composition has excellent curability and yields a cured product with excellent durability.

[0075] In the present invention, the number of acryloyl groups or methacryloyl groups in one molecule is preferably 1 to 4, more preferably 1 to 3, particularly preferably 1 to 2, and most preferably 1. This is because the above composition is more likely to form a cured product with excellent durability.

[0076] In the present invention, the molecular weight of component (B) is preferably 100 to 600, more preferably 150 to 500, particularly preferably 200 to 450, and most preferably 210 to 280. This is because the composition has excellent curability when set within the above numerical range.

[0077] Specific examples of compounds having the above-mentioned condensed alicyclic ring and at least one of an acryloyl group and a methacryloyl group include, for example, the compounds represented by (B-1) to (B-14) below.

[0078] [ka]

[0079] [ka]

[0080] [ka]

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change

[0092] In formulas (B-1) to (B-14), R B1 and R B2 Each of these independently represents a hydrogen atom or a methyl group. R B3 This is a substituent of a condensed alicyclic ring, representing a halogen atom, a hydroxyl group, or an alkyl group having 1 to 5 carbon atoms. k is a condensed alicyclic ring with R B3 This represents the number that can be taken. Multiple R in a single compound B3 These may be the same group or different groups from each other.

[0093] The composition of the present invention has at least one selected from component (B) and component (C), but preferably contains at least component (B), and more preferably contains only component (B). This is because the above composition can form a cured product that has excellent coating properties and excellent adhesion.

[0094] In the composition of the present invention, the content of component (B) is preferably 1 part by mass or more and 99 parts by mass or less in 100 parts by mass of the total amount of component (A), component (B), and component (C), more preferably 20 parts by mass or more and 98 parts by mass or less, more preferably 40 parts by mass or more and 96 parts by mass or less, and more preferably 45 parts by mass or more and 92 parts by mass or less. By setting the numerical range as described above, the composition can form a cured product that has excellent curability and low moisture permeability.

[0095] In the composition of the present invention, the content of component (B) is preferably 1 to 99 parts by mass per 100 parts by mass of the solid content of the composition, more preferably 5 to 90 parts by mass, particularly preferably 20 to 88 parts by mass, and most preferably 45 to 86 parts by mass. By setting the content within the above numerical range, the composition can form a cured product that has excellent curability and low moisture permeability.

[0096] A3.(C) Component The composition of the present invention may include an alicyclic hydrocarbon polymer as component (C). Examples of the above-mentioned alicyclic hydrocarbon polymers include hydrocarbon polymers having repeating units with an alicyclic structure in the main chain and / or side chains. Examples of alicyclic structures in alicyclic hydrocarbon polymers include cycloalkanes and cycloalkenes of the alicyclic hydrocarbon group in component (A), or structures containing alicyclics such as condensed alicyclics in component (B).

[0097] The number of carbon atoms in the alicyclic ring that constitutes the alicyclic structure of an alicyclic hydrocarbon polymer is not particularly limited, but is preferably 4 to 30, more preferably 5 to 20, and especially preferably 6 to 12. This is because keeping the number within the above range makes it easier to form a cured product that has excellent curability and low moisture permeability.

[0098] Specific examples of repeating units having an alicyclic structure in the main chain and / or side chain include, for example, the repeating units represented by the following formulas (C-1) to (C-22).

[0099] [ka]

[0100] [ka]

[0101] [ka]

[0102] [ka]

[0103] [ka]

[0104] [ka]

[0105] In formulas (C-1) to (C-22), R C1 ~R C11 , R C13 ~R C81 , R C83 , R C85 , and R C87 Each of these independently represents a hydrogen atom, a halogen atom, a hydroxyl group, or an alkyl group having 1 to 5 carbon atoms. R C1 , R C12 , R C82 , R C84 and R C86 Each of these independently represents a hydrogen atom or a methyl group. t1 and t2 represent integers between 0 and 10. t3 represents an integer between 0 and 5. t4 and t5 represent integers from 0 to 9. t6 represents an integer between 0 and 4. m1 to m6 each independently represent an integer between 1 and 30.

[0106] The above-mentioned alicyclic hydrocarbon polymer may be a copolymer comprising repeating units having an alicyclic structure in the main chain and / or side chains, and repeating units derived from other polymerizable monomers. Other polymerizable monomers include, for example, alkyl (meth)acrylates such as methyl (meth)acrylate, ethyl (meth)acrylate, isopropyl (meth)acrylate, n-butyl (meth)acrylate, isobutyl (meth)acrylate, n-amyl (meth)acrylate, isoamyl (meth)acrylate, n-hexyl (meth)acrylate, 2-ethylhexyl (meth)acrylate, octyl (meth)acrylate, decyl (meth)acrylate, dodecyl (meth)acrylate, octadecyl (meth)acrylate, and cyclohexyl (meth)acrylate; hydroxyalkyl vinyl ethers such as hydroxyethyl vinyl ether, hydroxypropyl vinyl ether, hydroxybutyl vinyl ether, and hydroxypentyl vinyl ether; hydroxyallyl ethers such as ethylene glycol monoallyl ether, diethylene glycol monoallyl ether, and triethylene glycol monoallyl ether; and 2-hydroxyethyl (meth)acrylate and hydroxypropyl (meth)acrylate. Examples include hydroxyl group-containing (meth)acrylates such as 4-hydroxyethyl (meth)acrylate and 4-hydroxybutyl (meth)acrylate; amino group-containing monomers such as dimethylaminoethyl (meth)acrylate, dimethylaminopropyl (meth)acrylate, dimethylamino (meth)acrylate, aminoethyl (meth)acrylate, and diethylaminoethyl (meth)acrylate; carboxyl group-containing monomers such as acrylic acid, methacrylic acid, crotonic acid, maleic acid or its monoalkyl ester, itaconic acid or its monoalkyl ester, fumaric acid or its monoalkyl ester; amide-containing monomers such as (meth)acrylamide and ethyl (meth)acrylamide; nitrile group-containing monomers such as (meth)acrylonitrile; epoxy group-containing monomers such as glycidyl (meth)acrylate; aromatic vinyl monomers such as styrene, methylstyrene, chlorostyrene, and vinyltoluene; vinyl esters such as vinyl acetate, vinyl propionate, and vinyl butyrate; and olefin monomers such as ethylene and propylene. The other polymerizable monomers may be one or two or more.

[0107] The weight-average molecular weight (Mw) of the above-mentioned alicyclic hydrocarbon polymer is not particularly limited, but is preferably between 300 and 2,000, more preferably between 340 and 1,500, and especially preferably between 365 and 990. This is because keeping the value within the above range makes it easier to obtain a composition that has excellent curability and readily forms a cured product with low moisture permeability. The weight-average molecular weight can be measured by GPC (Gel Permeation Chromatography).

[0108] The number-average molecular weight (Mn) of the above-mentioned alicyclic hydrocarbon polymer is not particularly limited, but is preferably between 400 and 2,000, more preferably between 450 and 1,500, and especially preferably between 540 and 970. This is because keeping the number-average molecular weight within the above range makes it easier to obtain a composition that has excellent curability and readily forms a cured product with low moisture permeability. The number-average molecular weight can be measured by the GPC method.

[0109] The softening temperature (°C) of the above-mentioned alicyclic hydrocarbon polymer is not particularly limited, but is preferably between 50°C and 200°C, more preferably between 70°C and 170°C, and especially preferably between 80°C and 150°C. This is because keeping the temperature within the above range makes it easier to obtain a composition that has excellent curability and easily forms a cured product with low moisture permeability. The softening temperature can be measured by the ring-spherical softening point method.

[0110] The glass transition temperature (°C) of the above-mentioned alicyclic hydrocarbon polymer is not particularly limited, but is preferably between 30°C and 90°C, more preferably between 35°C and 80°C, and especially preferably between 40°C and 70°C. This is because keeping the temperature within the above range makes it easier to obtain a composition that has excellent curability and easily forms a cured product with low moisture permeability. The glass transition temperature can be measured by differential thermal analysis (DTA).

[0111] Specific examples of the above-mentioned alicyclic hydrocarbon polymers include, for example, hydrogenated petroleum resins, hydrogenated terpene resins, and cyclic olefin resins.

[0112] (1) Hydrogenated petroleum resin Examples of the above-mentioned hydrogenated petroleum resins include C5-based hydrogenated petroleum resins, C9-based hydrogenated petroleum resins, and C5 / C9-based hydrogenated petroleum resins. The above-mentioned C5 hydrogenated petroleum resin is obtained by adding hydrogen atoms to the unsaturated double bonds of an aliphatic resin obtained by separating and purifying the C5 fraction obtained from petroleum naphtha. The above-mentioned C9 hydrogenated petroleum resin is obtained by adding hydrogen atoms to the unsaturated double bonds of an aromatic resin obtained by separating and purifying the C9 fraction obtained from petroleum naphtha. The above-mentioned C5 / C9 hydrogenated petroleum resin is obtained by separating and mixing the C5 fraction and C9 fraction, copolymerizing them, and then adding hydrogen atoms to the unsaturated double bonds of the purified aromatic aliphatic resin.

[0113] Specific examples of the above-mentioned C5 series hydrogenated petroleum resins include, for example, Easttack C100 and Easttack C115W (both manufactured by Eastman Chemical Co., Ltd.).

[0114] Examples of the above-mentioned C9 hydrogenated petroleum resins include Alcon P-90, Alcon P-100, Alcon P-125, Alcon P-140, Alcon M-90, Alcon M-115, and Alcon M-135 (all manufactured by Arakawa Chemical Industries, Ltd.).

[0115] Specific examples of the above-mentioned C5 / C9 hydrogenated petroleum resins include, for example, iMarb S-100, iMarb S-110, iMarb P-100, and iMarb P-140 (all manufactured by Idemitsu Kosan Co., Ltd.).

[0116] Specific examples of hydrogenated petroleum resins include polymers having repeating units represented by formulas (C-1) to (C-16) above.

[0117] (2) Hydrogenated terpene resins A terpene resin is a resin that can be obtained solely from terpene monomers composed of two or more isoprene units, or from copolymerization of terpene monomers with petroleum-based components. A hydrogenated terpene resin refers to a resin in which hydrogen atoms are added to the unsaturated double bonds in the above-mentioned terpene resin. In the present invention, a hydrogenated terpene resin may be a fully hydrogenated compound that does not have unsaturated double bonds, or a partially hydrogenated compound in which some of the unsaturated double bonds are hydrogenated. Examples of hydrogenated terpene resins include polymers having repeating units represented by formulas (C-17) to (C-22) above. Specific examples of hydrogenated terpene resins include, for example, Clearon P-105, Clearon P-125, Clearon M-105, Clearon P-115, and YS Polystar TH130 (all manufactured by Yasuhara Chemical Co., Ltd.).

[0118] (3) Cyclic olefin resins The above-mentioned cyclic olefin resin can be produced by copolymerizing norbornene and ethylene using a metallocene catalyst. Examples of cyclic olefins include copolymers containing repeating units represented by the above formula (C-5) and repeating units derived from ethylene. Specific examples of cyclic olefin resins include, for example, Topas (registered trademark; manufactured by Ticona), Arton (registered trademark; manufactured by JSR Corporation), ZEONOR (registered trademark), and ZEONEX (registered trademark) (all manufactured by Nippon Zeon Co., Ltd.).

[0119] (4) Content of component (C) In the composition of the present invention, the content of component (C) is preferably 10 parts by mass or more and 80 parts by mass or less in 100 parts by mass of the total amount of component (A), component (B), and component (C), more preferably 20 parts by mass or more and 70 parts by mass or less, and particularly preferably 30 parts by mass or more and 60 parts by mass or less. This is because the above composition can form a cured product with excellent curability and low moisture permeability.

[0120] In the composition of the present invention, the content of component (C) is preferably 100 parts by mass or more and 10 parts by mass or more and 80 parts by mass or less, of the solid content of the composition, and more preferably 20 parts by mass or more and 70 parts by mass or less, and particularly preferably 30 parts by mass or more and 60 parts by mass or less. This is because the above composition can form a cured product with excellent curability and low moisture permeability.

[0121] A4. Polymerization initiator The compositions of the present invention are preferable because curing is accelerated when a radical polymerization initiator is used as the polymerization initiator. One polymerization initiator may be used, or two or more may be used in combination. Polymerization initiators that can be used in the composition of the present invention include photoradical polymerization initiators and thermal radical polymerization initiators.

[0122] Examples of the above-mentioned photoradical polymerization initiators include acetophenone compounds, benzyl compounds, benzophenone compounds, thioxanthone compounds, bisimidazole compounds, acridine compounds, acylphosphine compounds, and oxime ester compounds.

[0123] Examples of the above acetophenone compounds include diethoxyacetophenone, 2-hydroxy-2-methyl-1-phenylpropan-1-one, 4'-isopropyl-2-hydroxy-2-methylpropiophenone, 2-hydroxymethyl-2-methylpropiophenone, 2,2-dimethoxy-1,2-diphenylethane-1-one, p-dimethylaminoacetophenone, p-tert-butyldichloroacetophenone, p-tert-butyltrichloroacetophenone, p-azidobenzalacetophenone, and 1-hydro Examples include xycyclohexylphenyl ketone, 2-methyl-1-[4-(methylthio)phenyl]-2-morpholinopropanone-1, 2-benzyl-2-dimethylamino-1-(4-morpholinophenyl)-butanone-1, benzoin, benzoin methyl ether, benzoin ethyl ether, benzoin isopropyl ether, benzoin n-butyl ether, benzoin isobutyl ether, and 1-[4-(2-hydroxyethoxy)-phenyl]-2-hydroxy-2-methyl-1-propan-1-one.

[0124] Examples of the benzyl compounds mentioned above include benzyl.

[0125] Examples of the benzophenone compounds mentioned above include benzophenone, o-methyl benzoylbenzoate, Michler ketone, 4,4'-bisdiethylaminobenzophenone, 4,4'-dichlorobenzophenone, and 4-benzoyl-4'-methyldiphenyl sulfide.

[0126] Examples of the thioxanthone compounds mentioned above include thioxanthone, 2-methylthioxanthone, 2-ethylthioxanthone, 2-chlorothioxanthone, 2-isopropylthioxanthone, and 2,4-diethylthioxanthone.

[0127] Examples of the bisimidazole compounds mentioned above include hexaarylbisimidazole (HABI, a dimer of triaryl-imidazole), specifically, 2,2'-bis(2-chlorophenyl)-4,4',5,5'-tetrakis(4-ethoxycarbonylphenyl)-1,2'-biimidazole, 2,2'-bis(2-bromophenyl)-4,4',5,5'-tetrakis(4-ethoxycarbonylphenyl)-1,2'-biimidazole, and 2,2'-bis(2-chlorophenyl)-4,4',5,5'-tetrafen Nyl-1,2'-biimidazole, 2,2'-bis(2,4-dichlorophenyl)-4,4',5,5'-tetraphenyl-1,2'-biimidazole, 2,2'-bis(2,4,6-trichlorophenyl)-4,4',5,5'-tetraphenyl-1,2'-biimidazole, 2,2'-bis(2-bromophenyl)-4,4',5,5'-tetraphenyl-1,2'-biimidazole, 2,2'-bis(2,4,6-tribromo Phenyl)-4,4',5,5'-tetraphenyl-1,2'-biimidazole, 2,4,5,2',4',5'-hexaphenylbisimidazole, 2,2'-bis(2-chlorophenyl)-4,5,4',5'-tetraphenylbisimidazole, 2,2'-bis(2-bromophenyl)-4,5,4',5'-tetraphenylbisimidazole, 2,2'-bis(2,4-dichlorophenyl)-4,5,4',5'-tetraphenylbisimidazole, 2,2'-bis(2-chlorophenyl)-4,5,4',5'-tetrakis(3-methoxy) Phenyl)bisimidazole, 2,2'-bis(2-chlorophenyl)-4,5,4',5'-tetrakis(3,4,5-trimethoxyphenyl)-bisimidazole, 2,5,2',5'-tetrakis(2-chlorophenyl)-4,4'-bis(3,4-dimethoxyphenyl)bisimidazole, 2,2'-bis(2,6-dichlorophenyl)-4,5,4',5'-tetraphenylbisimidazole, 2,2'-bis(2-nitrophenyl)-4,5,4',5'-tetraphenylbisimidazole, 2,2'-di-o-tolyl-4,5,4',5'-tetraphenylbisimidazole, 2,2'-bis(2-ethoxyphenyl)-4,5,4',5'-tetraphenylbisimidazole and 2,2'-bis(2,6-difluorophenyl)-4,5,4',5'-tetraphenylbisimidazole, 5'-tetra(p-iodophenyl)biimidazole, 2,2'-bis(o-chlorophenyl-4,4',5,5'-tetra(m-methoxyphenyl)biimidazole Examples include 2,2'-bis(p-methylthiophenyl)-4,5,4',5'-diphenyl-1,1'-biimidazole, bis(2,4,5-triphenyl)-1,1'-biimidazole, 5,5'-tetra(p-chlornaphthyl)biimidazole, etc., as well as tautomers covalently bonded at 1,2'-, 1,4'-, and 2,4'- as disclosed in Japanese Patent Publication No. 45-37377, and compounds described in International Publication No. 00 / 52529.

[0128] The above acridine compounds include acridine, 9-phenylacridine, 9-(p-methylphenyl)acridine, 9-(p-ethylphenyl)acridine, 9-(p-iso-propylphenyl)acridine, 9-(pn-butylphenyl)acridine, 9-(p-tert-butylphenyl)acridine, 9-(p-methyloxyphenyl)acridine, 9-(p-ethoxyphenyl)acridine, 9-(p-acetylphenyl)acridine, 9-(p-dimethylaminophenyl)acridine, 9-(p-cyanophenylphenyl)acridine, 9-(p-chlorosiphenyl)acridine, 9-(p-bromophenyl)acridine, 9-(m-methylphenyl)acridine, 9-(mn-propylphenyl)acridine, 9-(m-iso-propylphenyl)acridine, 9-(mn-butylphenyl)acridine, 9-(m-tert-butylphenyl)acridine, 9-(m-methyloxyphenyl)acridine, 9-(m-ethoxyphenyl)acridine, 9-(m-acetylphenyl)acridine, 9-(m-dimethylaminophenyl)acridine, 9-(m-diethylaminophenyl) ) Acridine, 9-(cyanophenyl)acridine, 9-(m-chlorophenyl)acridine, 9-(m-bromophenyl)acridine, 9-methylacridine, 9-ethylacridine, 9-n-propylacridine, 9-iso-propylacridine, 9-cyanoethylacridine, 9-hydroxyethylacridine, 9-chloroethylacridine, 9-bromoacridine, 9-hydroxyacridine, 9-nitroacridine, 9-aminoacridine, 9-methoxyacridine, 9-ethoxyacridine, 9-n-propoxyacridine, 9-i so-propoxyacridine, 9-chloroethoxyacridine, 4,6-bis(dimethylamino)acridine, 10-acridine acetate, 10-methylacetateacridine, 3,6-dimethylacridine, 7,13-dimethylacridine, 7,13-bis(dimethylamino)acridine, 3,6-dimethyl-10-acridine acetate, 3,5-dimethyl-10-methylacetateacridine, 7,13-dimethyl-10-acridine acetate, 7,13-dimethyl-10-methylacetateacridine, 1,7-bis(9-acridinyl)heptane, 1,5-Bis(9-acridinyl)pentane, 1,3-Bis(9-acridinyl)propane, 2,7-Dibenzoyl-9-phenylacridine, 2,7-Bis(α-hydroxybenzyl)-9-phenylacridine, 2,7-Bis(α-acetoxybenzyl)-9-phenylacridine, 2,7-Dimethyl-9-(4-methylphenyl)acridine, 2,7-Dimethyl-9-phenylacridine, 2,7-Bis(3,4-dimethyl-benzoyl)-9-(3,4-dimethylphenyl)acridine, 2,7-Bis(α-acetoxy-4-tert-butylbenzyl 1,4-bis(2,7-dimethyl-9-(4-tert-butylphenyl)acridine, 2,7-dimethyl-9-(3,4-dichlorophenyl)acridine, 2,7-dimethyl-9-(4-benzoylphenyl)acridine, 2,7-bis(2-chlorobenzoyl)-9-(2-chlorophenyl)acridine, 2-(α-hydroxy-3-bromobenzyl)-6-methyl-9-(3-bromophenyl)acridine, 2,5-bis(4-tert-butylbenzoyl)-9-(4-tert-butylphenyl)acridine, 1,4-bis(2,7-dimethyl-9-acridinyl)benzene , 2,7-bis(α-phenylaminocarbonyloxy-3,4-dimethylbenzyl)-9-(3,4-dimethylphenyl)acridine and 2,7-bis(3,5-dimethyl-4-hydroxy-4'-fluorodiphenylmethyl)-9-(4-fluorophenyl)acridine, 9,10-dihydroacridine, 1-methylacridine, 4-methylacridine, 2,3-dimethylacridine, 1-phenylacridine, 4-phenylacridine, 1-benzylacridine, 4-benzylacridine, 1-chloroacridine, 2,3-dichloroacridine, 1 0-Butyl-2-chloroacridin-9(10H)-one, 10-propyl-2-chloroacridin-9(10H)-one, 10-Butyl-2-chloroacridin-9(10H)-one, 1,2-bis(9-acridinyl)ethane, 1,3-bis(9-acridinyl)propane, 1,4-bis(9-acridinyl)butane, 1,6-bis(9-acridinyl)hexane, 1,7-bis(9-acridinyl)heptane, 1,8-bis(9-acridinyl)octane, 1,9-bis(9-acridinyl)nonane, 1,10-bis(9-acridinyl)decane, 1,11-Bis(9-acridinyl)undecane, 1,12-Bis(9-acridinyl)dodecane, 1,14-Bis(9-acridinyl)tetradecane, 1,16-Bis(9-acridinyl)hexadecane, 1,18-Bis(9-acridinyl)octadecane, 1,20-Bis(9-acridinyl)eicosane, 1,3-Bis(9-acridinyl)-2-thiapropane, 1,5-Bis(9-acridinyl)-3-thiapentane, 7-methylbenzo[c]acridine, 7-ethylbenzo[c]acridine, 7-propylbenzo[c]acridine 7-butyl-benzo[c]acridine, 7-pentyl-benzo[c]acridine, 7-hexyl-benzo[c]acridine, 7-heptyl-benzo[c]acridine, 7-octyl-benzo[c]acridine, 7-nonyl-benzo[c]acridine, 7-decyl-benzo[c]acridine, 7-undecyl-benzo[c]acridine, 7-dodecyl-benzo[c]acridine, 7-tridecyl-benzo[c]acridine, 7-tetradecyl-benzo[c]acridine, 7-pentadecyl-benzo[c]acridine, 7-hexadecyl-benzo Zo[c]acridine, 7-heptadecyl-benzo[c]acridine, 7-octadecyl-benzo[c]acridine, 7-nonadecyl-benzo[c]acridine, 1,1-bis(7-benzo[c]acridinyl)methane, 1,2-bis(7-benzo[c]acridinyl)ethane, 1,3-bis(7-benzo[c]acridinyl)propane, 1,4-bis(7-benzo[c]acridinyl)butane, 1,5-bis(7-benzo[c]acridinyl)pentane, 1,6-bis(7-benzo[c]acridinyl)hexane, 1,7-bis(7-benzo [c]acridinyl)heptane, 1,8-bis(7-benzo[c]acridinyl)octane, 1,9-bis(7-benzo[c]acridinyl)nonane, 1,10-bis(7-benzo[c]acridinyl)decane, 1,11-bis(7-benzo[c]acridinyl)undecane, 1,12-bis(7-benzo[c]acridinyl)dodecane, 1,13-bis(7-benzo[c]acridinyl)tridecane, 1,14-bis(7-benzo[c]acridinyl)tetradecane, 1,15-bis(7-benzo[c]acridinyl)pentadecane, 1,16-Bis(7-benzo[c]acridinyl)hexadecane, 1,17-Bis(7-benzo[c]acridinyl)heptadecane, 1,18-Bis(7-benzo[c]acridinyl)octadecane, 1,19-Bis(7-benzo[c]acridinyl)nonadecane, 1,20-Bis(7-benzo[c]acridinyl)eicosane, 7-phenyl-benzo[c]acridine, 7-(2-chlorophenyl)-benzo[c]acridine, 7-(4-methylphenyl)-benzo[c]acridine , 7-(4-nitrophenyl)-benzo[c]acridine, 1,3-bis(7-benzo[c]acridinyl)benzene, 1,4-bis(7-benzo[c]acridinyl)benzene, 7-[1-propen-3-yl(benzo[c]acridine)], 7-[1-ethylpentyl-(benzo[c]acridine)], 7-[8-heptadecenyl-(benzo[c]acridine)], 7,8-diphenyl-1,14-bis(7-benzo[c]acridinyl)tetradecane, 1,2-bis(7-ben Zo[c]acridinyl)ethylene, 1-methyl-1,2-bis(7-benzo[c]acridinyl)ethylene, 7-styryl-benzo[c]acridine, 7-(1-propenyl)-benzo[c]acridine, 7-(1-pentenyl)-benzo[c]acridine, 9-(2-pyridyl)acridine, 9-(3-pyridyl)acridine, 9-(4-pyridyl)acridine, 9-(4-pyrimidinyl)acridine, 9-(2-pyrazinyl)acridine, 9(5-methyl-2-pyrazinyl) Examples include crizine, 9-(2-quinolinyl)acridine, 9-(2-pyridyl)-2-methylacridine, 9-(2-pyridyl)-2-ethylacridine, 9-(3-pyridyl)-2-methylacridine, 9-(3-pyridyl)-2,4-diethylacridine, 3,6-diaminoacridine sulfonate, 3,6-bis-(dimethylamino)acridine sulfonate, 3,6-diamino-10-methylacridinium chloride, and 9-acridine carboxylic acid.

[0129] The above acylphosphine compounds include 2,4,6-trimethylbenzoyldiphenylphosphine oxide (Ominirad TPO; IGM RESINS) (Manufactured by BV Corporation), Isobutyryl-methylphosphinate methyl ester, Isobutyryl-phenylphosphinate methyl ester, Pivaloyl-phenylphosphinate methyl ester, 2-ethylhexanoyl-phenylphosphinate methyl ester, Pivaloyl-phenylphosphinate isopropyl ester, p-toluyl-phenylphosphinate methyl ester, o-toluyl-phenylphosphinate methyl ester, 2,4-dimethylbenzoyl-phenylphosphinate methyl ester, p-tert-butylbenzoyl-phenylphosphinate isopropyl ester, acryloyl-phenylphosphinate methyl ester, Isobutyryl-diphenylphosphinate oxide, 2-ethylhexanoyl-diphenylphosphinate oxide, o-toluyl-diphenylphosphinate oxide, p-tert-butylbenzoyl-diphenylphosphinate oxide, 3-pyridylcarbonyl-diphenylphosphinate oxide, acryloyl-diphenylphosphinate oxide, benzoyl-diphenyl Pivaloyl phenylphosphin oxide, vinyl pivaloyl phenylphosphinate, adipoyl-bis-diphenylphosphin oxide, pivaloyl-diphenylphosphin oxide, p-toluyl-diphenylphosphin oxide, 4-(tert-butyl)-benzoyl-diphenylphosphin oxide, 2-methylbenzoyl-diphenylphosphin oxide, 2-methyl-2-ethylhexanoyl-diphenylphosphin oxide, 1-methyl-cyclohexanoyl-diphenylphosphin oxide, methyl pivaloyl-phenylphosphinate and isopropyl pivaloyl-phenylphosphinate, 4-octylphenylphosphin oxide, terephthaloyl-bis-diphenylphosphin oxide, 1-methyl-cyclohexylcarbonyldiphenylphosphin oxide, versatoyl-diphenylphosphin oxide, bis(2,4,6-trimethylbenzoyl)-2,4-diisobutoxyphenylphosphin oxide, bis(2,4,6-Trimethylbenzoyl)phenylphosphine oxide (Ominirad380; manufactured by IGM RESINS), bis(2,4,6-trimethylbenzoyl)-2,5-dimethylphenylphosphine oxide, bis(2,6-dichloro-3,4,5-trimethoxybenzoyl)-2,5-dimethylphenylphosphine oxide, bis(2,6-dichloro-3,4,5-trimethoxybenzoyl)-4-ethoxyphenylphosphine oxide, bis(2-methyl-1-naphthoyl)-2,5-dimethylphenylphosphine oxide, bis(2-methyl-1-naphthoyl)-4-ethoxyphenylphosphine oxide Side, bis(2-methyl-1-naphthoyl)-2-naphthylphosphine oxide, bis(2-methyl-1-naphthoyl)-4-propylphenylphosphine oxide, bis(2-methyl-1-naphthoyl)-2,5-dimethylphenylphosphine oxide, bis(2-methoxy-1-naphthoyl)-4-ethoxyphenylphosphine oxide, bis(2-chlor-1-naphthoyl)-2,5-dimethylphenylphosphine oxide, bis(2,6-dimethoxybenzoyl)-2,4,4-trimethylpentylphosphine Phenoxide, bis(2,4,6-trimethylbenzoyl)-2,4-dioctyloxyphenylphosphine oxide, bis(2,4,6-trimethylbenzoyl)-2,4-diisopropoxyphenylphosphine oxide, bis(2,4,6-trimethylbenzoyl)-2,4-dihexyloxyphenylphosphine oxide, bis(2,4,6-trimethylbenzoyl)-2-propoxy-4-methylphenylphosphine oxide, bis(2,4,6-trimethylbenzoyl)-2,4-diisopentyloxy Phenylphosphine oxide, bis(2,6-dichlorobenzoyl)phenylphosphine oxide, bis(2,6-dichlorobenzoyl)-2,5-dimethylphenylphosphine oxide, bis(2,6-dichlorobenzoyl)-phenylphosphine oxide, bis(2,6-dichlorobenzoyl)-4-biphenylylphosphine oxide, bis(2,6-dichlorobenzoyl)-4-propylphenylphosphine oxide, bis(2,6-dichlorobenzoyl)-2-naphthylphosphine oxide, bis(2,Examples include 6-dichlorobenzoyl)-1-naphthylphosphine oxide, bis(2,6-dimethoxybenzoyl)-2,4,4-trimethylpentylphosphine oxide (CGI403), and 6-trimethylbenzoyl-ethyl-phenyl-phosphinate (SPEEDCURE TPO-L; manufactured by Lambson).

[0130] Examples of the above oxime ester compounds include: etanone-1-[9-ethyl-6-(2-methylbenzoyl-9H-carbazole-3-yl)]-1-(o-acetyloxime), 1-[9-ethyl-6-benzoyl-9H-carbazole-3-yl-octane-1-oneoxime-o-acetate, 1-[9-ethyl-6-(2-methylbenzoyl)-9H-carbazole-3-yl]-ethane-1-oneoxime-o-benzoate, 1-[9-n-butyl-6-(2-ethylbenzoyl)-9H-carbazole-3-yl]-ethane-1-oneoxime-o-benzoate, etanone-1-[9-ethyl-6-(2-methyl-4-tetrahydrofuranylbenzoyl)-9H-carbazole-3-yl]-1-(o-acetate Examples include ethyloxime, ethanone-1-[9-ethyl-6-(2-methyl-4-tetrahydropyranylbenzoyl)-9H-carbazole-3-yl]-1-(o-acetyloxime), ethanone-1-[9-ethyl-6-(2-methyl-5-tetrahydrofuranylbenzoyl)-9H-carbazole-3-yl]-1-(o-acetyloxime), ethanone-1-[9-ethyl-6-{2-methyl-4-(2,2-dimethyl-1,3-dioxolanyl)methoxybenzoyl}-9H-carbazole-3-yl]-1-(o-acetyloxime), and ethanone-1-[9-ethyl-6-(2-methyl-4-tetrahydrofuranylmethoxybenzoyl)-9H-carbazole-3-yl]-1-(o-acetyloxime).

[0131] Specific examples of the above-mentioned thermal radical polymerization initiators include, for example, azo-based initiators such as 2,2'-azobisisobutyronitrile, 2,2'-azobis(methylisobutyrate), 2,2'-azobis-2,4-dimethylvaleronitrile, and 1,1'-azobis(1-acetoxy-1-phenylethane); peroxide-based initiators such as benzoyl peroxide, di-tert-butylbenzoyl peroxide, tert-butyl peroxypivalate, and di(4-tert-butylcyclohexyl)peroxydicarbonate; and persulfates such as ammonium persulfate, sodium persulfate, and potassium persulfate. These can be used individually or in combination of two or more.

[0132] In the present invention, the polymerization initiator is preferably a photoradical polymerization initiator, and among these, an acylphosphine compound is preferred. This is because the above composition has excellent curability and readily forms a cured product with low moisture permeability.

[0133] From the viewpoint of easily controlling the polymerization reaction, the content of the polymerization initiator in the composition of the present invention is preferably 0.1 parts by mass or more and 20 parts by mass or less, and more preferably 1.0 part by mass or more and 10 parts by mass or less, in 100 parts by mass of the total amount of component (A), component (B), and component (C).

[0134] A5. Other ingredients The composition of the present invention comprises component (A), component (B) or component (C), and a polymerization initiator, and may further contain other components as needed. Other components mentioned above include polymerizable compounds other than components (A), (B), and (C) above, solvents, curing accelerators, sensitizers; leveling agents; fillers such as inorganic fillers and organic fillers; colorants such as pigments and dyes; silane coupling agents; defoamers; thickeners; thixotropes; surfactants, dispersants, flame retardants; plasticizers; antioxidants; stabilizers; polymerization inhibitors; ultraviolet absorbers; antistatic agents; flow regulators; adhesion promoters, and various other additives. A6. Other polymerizable compounds The composition of the present invention may include other polymerizable compounds other than components (A), (B), and (C) above as curable components for adjusting various properties. Examples of the other polymerizable compounds mentioned above include other monomers having an acryloyl group or a methacryloyl group, different from components (A), (B), and (C) above, as well as radical polymerizable compounds such as unsaturated carboxylic acids, unsaturated acid anhydrides, aromatic vinyl compounds, N-substituted maleimides, conjugated dienes, vinyl ethers, N-vinyl compounds, and unsaturated isocyanates.

[0135] Other monomers having the above-mentioned acryloyl group or methacryloyl group include, for example, aliphatic (meth)acrylates, aromatic (meth)acrylates, heterocyclic (meth)acrylates, etc. However, in the composition of the present invention, compounds having an aliphatic hydrocarbon group or a heterocyclic (meth)acrylate, or a group in which the methylene group in these groups is substituted with the above-mentioned -O- etc., and at least one of an acryloyl group and a methacryloyl group, i.e., aliphatic hydrocarbon (meth)acrylates and heterocyclic (meth)acrylates are preferred, and among these, those having heterocyclic (meth)acrylates are particularly preferred. This is because the effects of the composition of the present invention become more pronounced.

[0136] (I) Aliphatic hydrocarbons (meth)acrylates The above-mentioned aliphatic hydrocarbon (meth)acrylate does not contain aromatic hydrocarbon rings or heterocycles and represents a compound having at least one of an aliphatic hydrocarbon group, or a group in which the methylene group in the aliphatic hydrocarbon group is substituted with the above-mentioned -O-, etc., and an acryloyl group or a methacryloyl group. Here, the group in which the methylene group in the aliphatic hydrocarbon group is substituted with the above-mentioned -O-, etc., refers to a group in which the methylene group in the chain portion of the aliphatic hydrocarbon group is substituted with the above-mentioned -O-, etc. When the number of acryloyl groups and methacryloyl groups in the above aliphatic hydrocarbon (meth)acrylate is one, the example of a group in which the aliphatic hydrocarbon group and the methylene group in the aliphatic hydrocarbon group of the above aliphatic hydrocarbon (meth)acrylate are substituted with -O- etc. can be the same as the above aliphatic hydrocarbon group having 1 to 30 carbon atoms and the group in which the methylene group in the aliphatic hydrocarbon group is substituted with -O- etc.

[0137] When an aliphatic hydrocarbon (meth)acrylate is a compound containing one acryloyl group and one methacryloyl group in a single molecule, specific examples of the above aliphatic hydrocarbon (meth)acrylate include, for example, alkyl (meth)acrylate, alkenyl (meth)acrylate, cycloalkyl (meth)acrylate, or groups in which the methylene group in these groups is substituted with the above-mentioned -O-, etc.

[0138] The above alkyl (meth)acrylate refers to a compound containing an alkyl group and at least one of an acryloyl group and a methacryloyl group in its structure. The alkyl group in the above alkyl (meth)acrylate can be the same as the linear or branched alkyl group having 1 to 30 carbon atoms. Specific examples of the above alkyl (meth)acrylate include, for example, methyl (meth)acrylate, ethyl (meth)acrylate, n-propyl (meth)acrylate, isopropyl (meth)acrylate, n-butyl (meth)acrylate, sec-butyl (meth)acrylate, tert-butyl (meth)acrylate, n-amyl (meth)acrylate, sec-amyl (meth)acrylate, tert-amyl (meth)acrylate, neopentyl (meth)acrylate, n-hexyl (meth)acrylate, sec-hexyl (meth)acrylate, n-heptyl (meth)acrylate, n-octyl (meth)acrylate, sec-octyl (meth)acrylate, tert-octyl (meth)acrylate, 2-ethylhexyl (meth)acrylate, nonyl (meth)acrylate, decyl (meth)acrylate, undecyl (meth)acrylate, lauryl (meth)acrylate, tridecyl (meth)acrylate, myristyl (meth)acrylate, pentadecyl (meth)acrylate, heptadecyl (meth)acrylate, stearyl (meth)acrylate, nonadecyl (meth)acrylate, eicosyl (meth)acrylate, and the like. Examples of the (meth)acrylate of a group in which a methylene group in the alkyl group is substituted with the above -O- or the like include diethylene glycol (meth)acrylate, ethoxydiethylene glycol (meth)acrylate, propylene glycol (meth)acrylate, and the like.

[0139] The above alkenyl (meth)acrylate represents a compound having a structure in which at least one of an alkenyl group and an acryloyl group or a methacryloyl group is bonded. The alkenyl group in the above alkenyl (meth)acrylate can have the same content as the above linear or branched alkenyl group having 2 to 30 carbon atoms. Specific examples of the above alkenyl (meth)acrylate include, for example, vinyl (meth)acrylate, allyl (meth)acrylate, and the like.

[0140] The above cycloalkyl (meth)acrylate represents a compound having a structure in which a cycloalkyl group and at least one of an acryloyl group and a methacryloyl group are linked. The cycloalkyl group in the above cycloalkyl (meth)acrylate can have the same content as the cycloalkyl group having 3 to 30 carbon atoms described above. Specific examples of the above cycloalkyl (meth)acrylate include, for example, cycloheptyl (meth)acrylate, cyclohexyl (meth)acrylate, 2-ethylcyclohexyl (meth)acrylate, isobornyl (meth)acrylate, adamantyl (meth)acrylate, and the like.

[0141] When the above aliphatic hydrocarbon (meth)acrylate is a compound having 2 acryloyl groups and 2 methacryloyl groups in one molecule, specific examples of the above aliphatic hydrocarbon (meth)acrylate include, for example, alkanediyl di(meth)acrylate, cycloalkanediyl di(meth)acrylate, and the like.

[0142] The above alkanediyl di(meth)acrylate includes a compound in which a group obtained by removing one hydrogen atom from a linear or branched alkyl group having 1 to 30 carbon atoms or a group in which a methylene group in the alkyl group is substituted with -O- or the like, and two groups selected from an acryloyl group and a methacryloyl group are linked. Specific examples of the above alkanediyl di(meth)acrylate include dimethylenedi(meth)acrylate, trimethylenedi(meth)acrylate, hexamethylenedi(meth)acrylate, diethyleneglycoldi(meth)acrylate, ethoxydiethyleneglycoldi(meth)acrylate, dipropyleneglycoldi(meth)acrylate, and the like.

[0143] The above cycloalkanediyl di(meth)acrylate includes a compound in which a group obtained by removing one hydrogen atom from a cycloalkyl group having 3 to 30 carbon atoms and two groups selected from an acryloyl group and a methacryloyl group are bonded. Specific examples of the above-mentioned cycloalkanediyldi(meth)acrylate include, for example, cyclohexanedimethanoldi(meth)acrylate.

[0144] In the present invention, the aliphatic hydrocarbon (meth)acrylate is preferably a compound represented by the following general formula (E-1). This is because the above composition can form a cured product with excellent curability and low moisture permeability.

[0145] [ka] In the formula, R E1 This represents a hydrogen atom or a methyl group. R E2 This represents an n1-valent aliphatic hydrocarbon group or a group in which one or more methylene groups in the aliphatic hydrocarbon group are substituted with the above-mentioned -O- etc. n1 represents a number between 1 and 5 (inclusive).

[0146] R in equation (E-1) E2 The above-mentioned n1-valent aliphatic hydrocarbon group, represented by [formula], can be the same as the above-mentioned aliphatic hydrocarbon group having 1 to 30 carbon atoms when n1 is 1. If n1 is not 1, it can be a group obtained by abstracting n1-1 hydrogen atoms from the above aliphatic hydrocarbon group having 1 to 30 carbon atoms.

[0147] (II) Heterocyclic (meth)acrylates The above-mentioned heterocyclic (meth)acrylate refers to a compound having the above-mentioned heterocyclic group or a group in which the methylene group in the heterocyclic group is substituted with -O- etc., and at least one of an acryloyl group or a methacryloyl group. Compounds containing a heterocyclic and an aromatic hydrocarbon ring and having at least one of an acryloyl group and a methacryloyl group shall be included in heterocyclic (meth)acrylate compounds.

[0148] The heterocyclic group in the above-mentioned heterocyclic (meth)acrylate may be the same as the heterocyclic group described in section A1, "Compounds having a group represented by general formula (a-1) and a group represented by general formula (a-2)." In the compositions of the present invention, the heterocyclic group used as the cyclic ether group is preferably a ring formed by a carbon atom and an oxygen atom, or a ring formed by a carbon atom, an oxygen atom, and a nitrogen atom. This is because the effects of the present invention are significantly enhanced.

[0149] Specific examples of the above-mentioned cyclic ether groups include, for example, saturated cyclic ether groups and unsaturated cyclic ether groups.

[0150] The saturated cyclic ether group mentioned above represents a saturated heterocyclic cyclic ether group, such as an epoxy group, oxetanyl group, morpholinyl group, tetrahydrofuranyl group, or tetrahydropyranyl group. The above-mentioned unsaturated cyclic ether group represents an unsaturated heterocyclic cyclic ether group, such as a furyl group, oxazolyl group, isoxazolyl group, pyranyl group, etc. In the compositions of the present invention, it is preferable that the cyclic ether group is a saturated cyclic ether group, as this results in a more pronounced effect of the present invention.

[0151] In the composition of the present invention, the heterocyclic group preferably contains a 3- to 8-membered ring, more preferably a 3- to 7-membered ring, and particularly preferably a 5- to 6-membered ring. This is because the effects of the present invention become more pronounced.

[0152] Specific examples of the heterocyclic (meth)acrylates mentioned above include epoxy (meth)acrylate, epoxycyclohexyl (meth)acrylate, glycidyl group-containing (meth)acrylate, oxetane-containing (meth)acrylate, succinimide group-containing (meth)acrylate, five-membered heterocyclic (meth)acrylate, six-membered heterocyclic (meth)acrylate, and the like.

[0153] The above-mentioned glycidyl group-containing (meth)acrylate refers to a compound having a glycidyl group as a hydrocarbon group which may have a heteroatom, and having at least one of an acryloyl group and a methacryloyl group. Specific examples of the above-mentioned glycidyl group-containing (meth)acrylate include, for example, the compounds described in Japanese Patent Publication No. 2021-024823.

[0154] The above-mentioned oxetane-containing (meth)acrylate refers to a compound having an oxetanyl group as a hydrocarbon group which may have a heteroatom, and having at least one of an acryloyl group and a methacryloyl group. Specific examples of the above-mentioned oxetane-containing (meth)acrylate include, for example, the compounds described in Japanese Patent Publication No. 2000-63371, International Publication WO2011 / 062070, and others.

[0155] The above succinimide group-containing (meth)acrylate refers to a compound having a succinimide group as a hydrocarbon group which may have a heteroatom, and having at least one of an acryloyl group and a methacryloyl group. Specific examples of the above succinimide group-containing (meth)acrylate include, for example, the compounds described in Japanese Patent Application Publication No. 2021-1266.

[0156] The above-mentioned five-membered ring heterocyclic (meth)acrylate represents a compound having a five-membered ring heterocyclic group and at least one of an acryloyl group and a methacryloyl group. Specific examples of the five-membered heterocyclic (meth)acrylates mentioned above include thiophenyl(meth)acrylate, furanyl(meth)acrylate, and tetrahydrofurfuryl(meth)acrylate.

[0157] The above-mentioned 6-membered ring heterocyclic (meth)acrylate represents a compound having a 6-membered ring heterocyclic group as a hydrocarbon group which may have a hetero atom and having at least one of an acryloyl group and a methacryloyl group. Specific examples of the above-mentioned 6-membered ring heterocyclic (meth)acrylate include tetrahydropyranyl (meth)acrylate, 2,2,6,6-tetramethylpiperidyl (meth)acrylate, imidazole (meth)acrylate described in JP-A-2014-118397, 4-acryloylmorpholine, 4-methacryloylmorpholine and the like.

[0158] In the present invention, it is preferable that the above-mentioned heterocyclic ring-containing (meth)acrylate compound is a compound represented by the following general formula (E-2). This is because the above composition can form a cured product having excellent curability and low moisture permeability.

[0159]

Chemical formula

[0160] The heterocyclic ring-containing group represented by R E4 in the formula (E-2) can be the same group as the heterocyclic ring-containing group having 2 to 30 carbon atoms represented by R a1 in the above general formula (a-1) when n2 is 1. When n2 is not 1, the above heterocyclic ring-containing group can be a group obtained by removing n2 - 1 hydrogen atoms from the above heterocyclic ring-containing group having 2 to 30 carbon atoms.

[0161] The heterocyclic ring-containing group represented by the above R E4 is preferably a group in which one or more methylene groups in the heterocyclic ring-containing group are substituted with the above -O- or the like. This is because the effects of the present invention become remarkable. The above RE4 The heterocyclic group represented is preferably a cyclic ether group, and more preferably a saturated cyclic ether group, and more preferably a group in which the constituent atoms of the heterocyclic ring are carbon, oxygen, and nitrogen atoms, or carbon and oxygen atoms, and more preferably a saturated cyclic ether group in which the constituent atoms of the heterocyclic ring are carbon and oxygen atoms. This is because the effects of the present invention are remarkable. The above R E4 The heterocyclic ring-containing group used is preferably a 3- to 8-membered ring, more preferably a 4- to 7-membered ring, and especially preferably a 5- to 6-membered ring. This is because the effects of the present invention become more pronounced.

[0162] The heterocyclic (meth)acrylate described above is preferably a compound having 5 to 20 carbon atoms, more preferably a compound having 6 to 15 carbon atoms, and particularly preferably a compound having 7 to 10 carbon atoms. This is because the effects of the present invention are significantly enhanced.

[0163] The heterocyclic (meth)acrylate described above is preferably a compound with a molecular weight of 60 to 500, more preferably a compound with a molecular weight of 100 to 300, and particularly preferably a compound with a molecular weight of 150 to 250. This is because the effects of the present invention are significantly enhanced.

[0164] (III) Aromatic hydrocarbons (meth)acrylates The above-mentioned aromatic hydrocarbon (meth)acrylate refers to a compound that does not contain a heterocycle and has an aromatic hydrocarbon group, or a group in which the methylene group in the aromatic hydrocarbon group is substituted with the above-mentioned -O- etc., and at least one of an acryloyl group and a methacryloyl group. When there is one acryloyl group and one methacryloyl group, the aromatic hydrocarbon group of the above aromatic hydrocarbon (meth)acrylate may be the same as the aromatic hydrocarbon group described in section A1, "Compounds having a group represented by general formula (a-1) and a group represented by general formula (a-2)".

[0165] When there is one acryloyl group and one methacryloyl group in a single molecule, specific examples of the above aromatic hydrocarbon (meth)acrylate include aryl (meth)acrylate and arylalkyl (meth)acrylate.

[0166] The above-mentioned aryl (meth)acrylate refers to a compound having an aryl group, or a group in which the methylene group in the aryl group is substituted with the above-mentioned -O-, etc., and at least one of an acryloyl group and a methacryloyl group. The aryl group in the above-mentioned aryl (meth)acrylate may be the same as the aryl group described in section A1. Compounds having a group represented by general formula (a-1) and a group represented by general formula (a-2). Specific examples of the above-mentioned arylalkyl (meth)acrylate include, for example, benzyl (meth)acrylate.

[0167] When there are two acryloyl groups and two methacryloyl groups, the aromatic hydrocarbon group of the above aromatic hydrocarbon (meth)acrylate can be a group obtained by removing one hydrogen atom from the above aromatic hydrocarbon group having 6 to 30 carbon atoms. When there are two acryloyl groups and two methacryloyl groups in a single molecule, specific examples of the above-mentioned aromatic hydrocarbon (meth)acrylate include aryl di(meth)acrylates. Specific examples of the above-mentioned aryl di(meth)acrylates include, for example, phenyl di(meth)acrylate and bisphenol di(meth)acrylate.

[0168] In the present invention, the aromatic (meth)acrylate is preferably a compound represented by the following general formula (E-3). This is because the above composition can form a cured product with excellent curability and low moisture permeability.

[0169] [ka] In the formula, R E5 This represents a hydrogen atom or a methyl group. R E6 This represents an aromatic hydrocarbon group or a group in which one or more methylene groups in said aromatic hydrocarbon group are substituted with the above-mentioned -O- etc. n3 represents a number between 1 and 5 (inclusive).

[0170] R in equation (E-3) E6 The n3-valent aromatic hydrocarbon group represented by the above general formula (a-1) is R when n3 is 1. a1 It can be a group similar to an aromatic hydrocarbon group having 6 to 30 carbon atoms represented by . If n3 is not 1, it can be a group obtained by abstracting n3-1 hydrogen atoms from the above aromatic hydrocarbon group having 6 to 30 carbon atoms.

[0171] Specific examples of the above-mentioned unsaturated carboxylic acids include, for example, crotonic acid, cinnamic acid, vinylbenzoic acid, maleic acid, fumaric acid, itaconic acid, citraconic acid, mesaconic acid, and the like. However, the present invention is not limited to these examples. These unsaturated carboxylic acids may be used individually or in combination of two or more types.

[0172] Specific examples of the above-mentioned unsaturated acid anhydrides include, for example, maleic anhydride, phthalic anhydride, and itaconic anhydride. However, the present invention is not limited to these examples. These unsaturated acid anhydrides may be used individually or in combination of two or more types.

[0173] Specific examples of the above-mentioned aromatic vinyl compounds include, for example, styrene, α-methylstyrene, vinyltoluene, and methoxystyrene. However, the present invention is not limited to these examples. These aromatic vinyl compounds may be used individually or in combination of two or more types.

[0174] Specific examples of the above N-substituted maleimides include, for example, methyl maleimide, ethyl maleimide, isopropyl maleimide, cyclohexyl maleimide, phenyl maleimide, benzyl maleimide, naphthyl maleimide, and the like. However, the present invention is not limited to these examples. These N-substituted maleimides may be used individually or in combination of two or more types.

[0175] Specific examples of the above-mentioned conjugated dienes include, for example, 1,3-butadiene, isoprene, and chloroprene. However, the present invention is not limited to these examples. These conjugated dienes may be used individually or in combination of two or more types.

[0176] Specific examples of the vinyl ethers mentioned above include, for example, methyl vinyl ether, ethyl vinyl ether, propyl vinyl ether, butyl vinyl ether, 2-ethylhexyl vinyl ether, n-nonyl vinyl ether, lauryl vinyl ether, cyclohexyl vinyl ether, methoxyethyl vinyl ether, ethoxyethyl vinyl ether, methoxyethoxyethyl vinyl ether, methoxypolyethylene glycol vinyl ether, 2-hydroxyethyl vinyl ether, and 4-hydroxybutyl vinyl ether. However, the present invention is not limited to these examples. These vinyl ethers may be used individually or in combination of two or more types.

[0177] Specific examples of the above N-vinyl compounds include, for example, N-vinylpyrrolidone, N-vinylcaprolactam, N-vinylimidazole, N-vinylmorpholin, and N-vinylacetamide. However, the present invention is not limited to these examples. These N-vinyl compounds may be used individually or in combination of two or more types.

[0178] Specific examples of the above-mentioned unsaturated isocyanates include, for example, isocyanatoethyl (meth)acrylate and allyl isocyanate. However, the present invention is not limited to these examples. These unsaturated isocyanates may be used individually or in combination of two or more types.

[0179] In the composition of the present invention, the content of the above-mentioned other polymerizable compounds is not particularly limited, but it is preferably less than 50 parts by mass per 100 parts by mass of solid content of the composition of the present invention, more preferably less than 30 parts by mass, and especially preferably not included. This is because keeping the content within the above numerical range allows the composition to have excellent curability and to easily form a cured product with low moisture permeability.

[0180] A7. Solvents The composition of the present invention may contain a minimum amount of solvent for dissolving components such as polymerization initiators. The solvent is not one of the above components (A), (B), (C), or polymerization initiators, is liquid at 25°C and atmospheric pressure, and is capable of dispersing or dissolving each component in the composition. Furthermore, it is preferable that the solvent does not react with the monomers in the composition of the present invention, as this has less adverse effect on the cured product of the composition of the present invention. The upper limit of the solvent content in the composition of the present invention is preferably 1 part by mass or less per 100 parts by mass of the composition, more preferably 0.1 parts by mass or less, and especially preferably no solvent at all. This is because the effects of the present invention are significantly enhanced. Specific examples of the above-mentioned solvents include, for example, the solvents described in International Publication No. WO2019 / 159953. Furthermore, in the composition of the present invention, the solvent may be used alone, or a mixed solvent obtained by mixing two or more types of solvents may be used.

[0181] A8. Composition As for the method of producing the composition of the present invention, any method that can form a composition containing the above-mentioned components in desired amounts is acceptable, and a known mixing method can be cited. For example, the composition of the present invention can be produced by mixing the components using a mixer such as a homodisper, homomixer, universal mixer, planetary mixer, kneader, or three-roll mixer.

[0182] The compositions of the present invention are preferably used in applications where a cured product with excellent curability and low moisture permeability is required, for example, for forming a moisture barrier layer. Applications to the compositions of the present invention include, for example, optical filters including light-shielding filters; paints; coatings; linings; adhesives; printing plates; insulating varnishes; insulating sheets; laminates; printed circuit boards; sealing agents for semiconductor devices, LED packages, liquid crystal injection ports, organic electroluminescence (EL), optical elements, electrical insulation, electronic components, and separation films; molding materials; putties, glass fiber impregnating agents; sealing agents; passivation films for semiconductors and solar cells; interlayer insulating films; protective films; color filters for color televisions, PC monitors, mobile information terminals, and CCD image sensors; electrode materials for plasma display panels; printing inks; dental compositions; resins for stereolithography; both liquid and dry films; micro-mechanical parts; glass fiber cable coatings; and various applications for holographic recording materials. In the present invention, it is preferable that the object on which the moisture-proof layer is formed is a printed circuit board, a color television, a PC monitor, a portable information terminal, a color filter for a CCD image sensor, an electrode material for a plasma display panel, etc., and is particularly preferable to be a printed circuit board. This is because the effects of the composition of the present invention, which are excellent in curability and low moisture permeability, can be exhibited more effectively.

[0183] B. Cured product Next, the cured product of the present invention will be described. The cured product of the present invention is a cured product of the above composition.

[0184] According to the present invention, since the above-described composition is used, a cured product with excellent curability and low moisture permeability can be provided. The composition of the cured product can be the same as that described in section "A. Composition" above, so the explanation is omitted here. The shape, thickness, etc. of the cured material can be appropriately set according to the intended use of the cured material. For example, when the cured material is used as a barrier coating material, it can be set to 0.05 μm or more and 300 μm or less. The uses of the cured product of the present invention can be the same as those described in "A. Composition" above. The method for producing the cured product of the present invention is not particularly limited, as long as it is a method for curing the composition of the present invention, but the method described in "C. Method for producing the cured product" below can be used.

[0185] The cured product of the present invention exhibits excellent low moisture permeability, and more specifically, it can have low water vapor permeability. This method of measuring water vapor permeability can be performed using a general water vapor permeability measuring device, and measurements can be taken under conditions of 90% relative humidity and 40°C. More specifically, cut the hardened material into pieces measuring 3.3cm x 3.3cm, and then cut 5cm. 2 A method can be used in which the device is installed in a mask with holes, and the water vapor transmission rate is measured using a water vapor transmission rate measuring device (Illinois Corporation, model 7002) under conditions of 90% relative humidity and 40°C. In this invention, the water vapor permeability of the cured product is 200 g / (m²). 2 It is preferable that the time is less than 24 hours, and in particular, 150 g / (m 2 ·24 hours) or more 200g / (m 2 It is preferable that the time is less than 24 hours, and in particular, 150 g / (m 2 It is preferable that the time is less than 24 hours, as this provides sufficient moisture permeability for applications such as forming a moisture barrier.

[0186] C. Method for manufacturing cured products The method for producing the cured product described above is not particularly limited, as long as it can form the cured product of the above-mentioned composition into a desired shape.

[0187] C1.Curing process This step is a process for curing the above-mentioned composition. In this process, any method capable of polymerizing one or more of the components (A), (B), and (C) in the above-mentioned composition is acceptable. For example, a method of polymerizing the composition of the present invention by irradiating the coating film of the composition with light (energy rays) is one such method.

[0188] Examples of light energy sources mentioned above include electromagnetic waves with wavelengths of 2000 angstroms to 7000 angstroms obtained from ultra-high pressure mercury lamps, high pressure mercury lamps, medium pressure mercury lamps, low pressure mercury lamps, mercury vapor arc lamps, xenon arc lamps, carbon arc lamps, metal halide lamps, fluorescent lamps, tungsten lamps, excimer lamps, germicidal lamps, light-emitting diodes, CRT light sources, etc., as well as high-energy rays such as electron beams, X-rays, and radiation. In this process, the light source is preferably an ultra-high pressure mercury lamp, mercury vapor arc lamp, carbon arc lamp, xenon arc lamp, light-emitting diode, etc., that emits light with a wavelength of 300 to 450 nm. This is because it facilitates the polymerization of the composition of the present invention.

[0189] The irradiation dose of the above energy rays is not particularly limited and can be appropriately determined depending on the composition of the composition. From the viewpoint of preventing degradation of the components in the composition, the irradiation dose is set to 100 mJ / cm² at 365 nm. 2 More than 2,000mJ / cm 2 The following is preferable:

[0190] In this process, the curing method is preferably a combination of an energy ray irradiation method and a heating method, and more specifically, it is preferable to perform the energy ray irradiation method and the heating method in this order. This is because the curing of the composition of the present invention can be advanced efficiently.

[0191] Methods for heating the coating film of the composition in this process include using a hot plate or other heating element, or using an atmospheric oven, inert gas oven, vacuum oven, or hot air circulation oven. The temperature at which the composition of the present invention is heated is not particularly limited, but from the viewpoint of facilitating polymerization of the composition of the present invention, it is preferably 70°C to 200°C, and more preferably 90°C to 150°C. The heating time for the coating film is not particularly limited, but from the viewpoint of improving productivity, it is preferably between 1 minute and 60 minutes, and more preferably between 1 minute and 30 minutes.

[0192] C2. Other processes The above manufacturing method may include other steps as needed. Other steps include, for example, applying the composition of the present invention to a substrate before the curing step described above. As methods for applying the composition to a substrate, known methods such as spin coaters, roll coaters, bar coaters, die coaters, curtain coaters, various printing methods, and dipping methods can be used.

[0193] The above-mentioned substrate can be appropriately set according to the intended use of the cured product, and is not particularly limited; commonly used substrates can be used. Specific examples of the above-mentioned substrates include, for example, metal substrates such as aluminum, titanium, stainless steel, mild steel, and plated steel; inorganic materials such as glass; cellulose esters such as diacetylcellulose, triacetylcellulose (TAC), propionylcellulose, butyrylcellulose, acetylpropionylcellulose, and nitrocellulose; polyamides; polyimides; polyurethanes; epoxy resins; polycarbonates; polyesters such as polyethylene terephthalate, polyethylene naphthalate, polybutylene terephthalate, poly-1,4-cyclohexanedimethylene terephthalate, polyethylene-1,2-diphenoxyethane-4,4'-dicarboxylate, and polybutylene terephthalate; polystyrene; polyolefins such as polyethylene, polypropylene, and polymethylpentene; vinyl compounds such as polyvinyl acetate, polyvinyl chloride, and polyvinyl fluoride; acrylic resins such as polymethyl methacrylate and polyacrylate; polycarbonates; polysulfones; polyethersulfones; polyetherketones; polyetherimides; and polymer materials such as polyoxyethylene, norbornene resin, and cycloolefin polymers (COP). Furthermore, the substrate on which the cured product of the above composition is formed may, for example, be the upper surface of the pixels of a color filter when the cured product of the above composition is used in a color adjustment filter or the like. The cured product of the present invention may be used after being formed on the above substrate and then peeled off from the substrate, or it may be used after being transferred from the substrate to another substrate.

[0194] D. Others Furthermore, the present invention includes the embodiments described in [1] to [6] below. [1] A composition comprising component (A) and at least one selected from component (B) and component (C). (A) Component: A compound having a group represented by the above general formula (a-1) and a group represented by the above general formula (a-2). (B) Component: A compound having a condensed alicyclic ring and at least one of an acryloyl group and a methacryloyl group. (C) Component: Alicyclic hydrocarbon polymer [2] The composition according to [1], wherein component (B) is a compound having one condensed alicyclic ring in one molecule. [3] The composition according to [1] or [2], wherein the content of component (A) is 1 part by mass or more and 90 parts by mass or less per 100 parts by mass of the solid content of the composition. [4] A composition according to any one of [1] to [3] for forming a moisture barrier. A cured product of any one of the compositions described in [5], [1], or [4].

[0195] The present invention is not limited to the embodiments described above. The embodiments described above are illustrative, and any configuration that is substantially identical to the technical idea described in the claims of the present invention and achieves similar effects is included within the technical scope of the present invention. [Examples]

[0196] [Examples 1-25 and Comparative Examples 1-5] The compositions were obtained by blending each component according to the formulations shown in Tables 1 to 4 below. Furthermore, the following materials were used for each component. Note that the amounts listed in the table represent the mass parts of each component.

[0197] (A) Component: Compound having the groups represented by (a-1) and (a-2) A1: A compound represented by the following formula (A1) (a compound having groups represented by (a-1) and (a-2)).

[0198] [ka]

[0199] (B) Component: A compound having a condensed alicyclic ring and either an acryloyl group or a methacryloyl group. B1: A-DCP (a product manufactured by Shin-Nakamura Chemical Industry Co., Ltd., a compound represented by (B1) below, molecular weight 304.38) B2: Funcryl (registered trademark) FA-513AS (product manufactured by Showa Denko Materials Co., Ltd., compound represented by (B2) below, molecular weight 206.1) B3: Funcryl (registered trademark) FA-512AS (product manufactured by Showa Denko Materials Co., Ltd., compound represented by (B3) below, molecular weight 248) B4: IBXA (A product manufactured by Osaka Organic Chemical Industry Co., Ltd., represented by (B4) below, molecular weight 208.3) B5: Beamset (registered trademark) 101 (a product manufactured by Arakawa Chemical Industries, Ltd., a compound represented by (B5) below, molecular weight 428.57)

[0200] [ka]

[0201] The following compounds (b1) to (b3) were used as comparative compounds for component (B) above for evaluation. b-1: Viscoat #155, CHA (a product manufactured by Osaka Organic Chemical Industry Co., Ltd., the compound represented by (b1) below) b-2: Viscoat #196, TMCHACHA (a product manufactured by Osaka Organic Chemical Industry Co., Ltd., the compound represented by (b2) below) b-3: Corsirmar (registered trademark) TBCHA (a product manufactured by KJ Chemicals Co., Ltd., the compound represented by (b3) below)

[0202] [ka]

[0203] (C) Component: Alicyclic hydrocarbon polymer C1: YS Resin TO125 (manufactured by Yasuhara Chemical Co., Ltd., softening point 125°C, number average molecular weight 800, weight average molecular weight 800, glass transition point 64°C, in the above formula (C-22), R C86 is a methyl group, R C87 (A alicyclic hydrocarbon polymer having repeating units where t6 is 1 and t is a hydroxyl group) C2: YS Polyster UH115 (product manufactured by Yasuhara Chemical Co., Ltd., softening point 115°C, number average molecular weight 582, weight average molecular weight 959, glass transition point 65°C, in the above formula (C-17), R C79 is an alicyclic hydrocarbon polymer having a repeating unit where R is a hydroxy group and t1 is 1) C3: T-REZ (registered trademark) HA-125 (product manufactured by ENEOS Co., Ltd., softening point 125°C, number average molecular weight 400, weight average molecular weight 610, in the above formula (C-3), R C21 , R C22 , R C23 and R C24 are all hydrogen atoms, and in the above formula (C-6), R C31 , R C32 , R C33 , R C34 , R C35 and R C36 are all hydrogen atoms, and has an alicyclic hydrocarbon polymer) C4: T-REZ (registered trademark) HA-103 (product manufactured by ENEOS Co., Ltd., softening point 104°C, number average molecular weight 370, weight average molecular weight 560) In the above formula (C-3), R C21 , R C22 , R C23 and R C24 are all hydrogen atoms, and in the above formula (C-6), R C31 , R C32 , R C33 , R C34 , R C35 and R C36 are all hydrogen atoms, and has an alicyclic hydrocarbon polymer) C5: T-REZ (registered trademark) HB-125 (product manufactured by ENEOS Co., Ltd., softening point 125°C, number average molecular weight 410, weight average molecular weight 630, in the above formula (C-4), R C25 and R C26 are hydrogen atoms, and in the above (C-10), R C47 , R C48 , R[[ID=XY]] C49 and R C50 are hydrogen atoms, and has an alicyclic hydrocarbon polymer) C6: T-REZ (registered trademark) HB-103 (manufactured by ENEOS Co., Ltd., softening point 103°C, number average molecular weight 460, weight average molecular weight 720, in the above formula (C-4), R C25 and R C26 However, the repeating unit of the monomer is a hydrogen atom, and in (C-10) above, R C47 , R C48 , R C49 and R C50 (An alicyclic hydrocarbon polymer having repeating units in which hydrogen atoms are present) C7: iMarb (registered trademark) P-140 (product manufactured by Idemitsu Kosan Co., Ltd., softening point 140℃, weight-average molecular weight 900, in the above formula (C-1), R C1 , R C2 , R C3 , R C4 , R C5 , R C6 , R C7 , R C8 , R C9 , R C10 , R C11 and R C12 A repeating unit in which all are hydrogen atoms, and in the above formula (C-1), R C1 , R C2 , R C3 , R C4 , R C5 , R C6 , R C7 , R C8 , R C9 , R C10 and R C11 All of them are hydrogen atoms, R C12 A repeating unit in which is a methyl group, and in the above formula (C-2), R C13 , R C14 , R C15 , R C16 , R C17 , R C18 , R C19 and R C20 A repeating unit in which all are hydrogen atoms, and in the above formula (C-3), R C21 , R C22 , R C23 and R C24 A repeating unit in which all are hydrogen atoms, and in the above formula (C-6), R C31 , R C32, R C33 , R C34 , R C35 and R C36 (An alicyclic hydrocarbon polymer having repeating units in which all atoms are hydrogen atoms) C8: iMarb (registered trademark) S-110 (product manufactured by Idemitsu Kosan Co., Ltd., softening point 90°C, weight-average molecular weight 760, in the above formula (C-1), R C1 , R C2 , R C3 , R C4 , R C5 , R C6 , R C7 , R C8 , R C9 , R C10 , R C11 and R C12 A repeating unit in which all are hydrogen atoms, and in the above formula (C-1), R C1 , R C2 , R C3 , R C4 , R C5 , R C6 , R C7 , R C8 , R C9 , R C10 and R C11 All of them are hydrogen atoms, R C12 A repeating unit in which is a methyl group, and in the above formula (C-2), R C13 , R C14 , R C15 , R C16 , R C17 , R C18 , R C19 and R C20 In the above formula (C-3), R is a repeating unit of monomers, and C21 , R C22 , R C23 and R C24 In the above formula (C-6), R is a repeating unit of monomers, where all atoms are hydrogen atoms. C31 , R C32 , R C33 , R C34 , R C35 and R C36 (An alicyclic hydrocarbon polymer having repeating units in which all atoms are hydrogen atoms) C9: iMarb (registered trademark) M-90 (product manufactured by Idemitsu Kosan Co., Ltd., softening point 90°C, in the above formula (C-1), R C1 , R C2 , R C3 , R C4 , R C5 , R C6 , R C7 , R C8 , R C9 , R C10 , R C11 and R C12 A repeating unit in which all are hydrogen atoms, and in the above formula (C-1), R C1 , R C2 , R C3 , R C4 , R C5 , R C6 , R C7 , R C8 , R C9 , R C10 and R C11 All of them are hydrogen atoms, R C12 A repeating unit in which is a methyl group, and in the above formula (C-2), R C13 , R C14 , R C15 , R C16 , R C17 , R C18 , R C19 and R C20 (An alicyclic hydrocarbon polymer having repeating units in which all atoms are hydrogen atoms) C10: iMarb (registered trademark) P-90 (product manufactured by Idemitsu Kosan Co., Ltd., softening point 90°C, weight-average molecular weight 590, glass transition point 42°C, in the above formula (C-1), R C1 , R C2 , R C3 , R C4 , R C5 , R C6 , R C7 , R C8 , R C9 , R C10 , R C11 and R C12 A repeating unit in which all are hydrogen atoms, and in the above formula (C-1), R C1 , R C2 , R C3 , R C4 , R C5, R C6 , R C7 , R C8 , R C9 , R C10 and R C11 All of them are hydrogen atoms, R C12 A repeating unit in which is a methyl group, and in the above formula (C-2), R C13 , R C14 , R C15 , R C16 , R C17 , R C18 , R C19 and R C20 (An alicyclic hydrocarbon polymer having repeating units in which all atoms are hydrogen atoms) C11: Cycloolefin copolymer (In the above formula (C-5), R C27 , R C28 , R C29 and R C30 However, it is an alicyclic hydrocarbon polymer having repeating units that are all hydrogen atoms and repeating units derived from ethylene monomers.

[0204] (D) Component: Polymerization initiator D1: Ominirad 380 (IGM RESINS product)

[0205] "evaluation" For each of the obtained compositions, moisture permeability, curability, adhesion, coating properties, durability 1 (constant temperature and humidity test), and durability 2 (heat cycle test) were evaluated according to the following procedure. The results are shown in Tables 1 to 5.

[0206] #1: Breathability The moisture permeability was evaluated using the compositions of Examples 1-19 and Comparative Examples 1-8. A coating film was formed on a 60 μm thick TAC film that had undergone corona discharge treatment by applying each composition using a bar coating method so that the resulting cured film thickness would be 10 μm. The coating film was then cured by irradiating it with ultraviolet light (365 nm) using a high-pressure mercury lamp under exposure conditions of 100 mW and 1,000 mJ to obtain a cured product. This cured product was cut to a size of 3.3 cm x 3.3 cm and 5 cm 2The perforated mask was installed, and the water vapor permeability was measured using a water vapor permeability meter (Illinois Corporation, model 7002) under conditions of 90% relative humidity and 40°C. A smaller measured value indicates a lower amount of water vapor transmission. <Evaluation Criteria> ++: 150g / (m 2 Less than 24 hours + : 150g / (m 2 ·24 hours) or more 200g / (m 2 Less than 24 hours - :200g / (m 2 (24 hours or more)

[0207] #2: Curable The curing properties were evaluated using the cured material prepared in the above moisture permeability test. The surface of the hardened material was palpated immediately after curing and evaluated according to the following criteria. <Evaluation Criteria> ++: Tack-free (non-sticky) + : Sticky - : No hardened material was formed.

[0208] #3. Coatability The coating properties of each composition were evaluated. Each composition was filled into a spray can (spray pressure 0.2 MPa), and the state when the spray can was dispensed was visually observed and evaluated according to the following criteria. <Evaluation Criteria> +: Can spray the composition. -: The composition cannot be sprayed.

[0209] #4:Adhesiveness Adhesion was evaluated according to the test method of JIS K5600-5-6. The above composition was applied to a 100 μm thick PET film (Cosmoshine® A4360, manufactured by Toyobo Co., Ltd.) using the bar coating method to form a coating film with a cured film thickness of 10 μm. The coating film was cured by irradiating it with ultraviolet light (365 nm) using a high-pressure mercury lamp under exposure conditions of 100 mW and 1,000 mJ. The cured film formed on the TAC film was cross-cut with a cutter to create 100 grids of 1 mm x 1 mm, and peeling was performed using cellophane tape. The number of peeled pieces was visually observed and evaluated according to the following criteria. <Evaluation Criteria> ++: The number of detached pieces is less than 5. + : The number of detached pieces is 5 or more but less than 10. - : The number of detached pieces is 10 or more.

[0210] #5: Durability 1 (Constant Temperature and Humidity Test) Durability 1 (constant temperature and humidity test) was evaluated using the cured material prepared in the above moisture permeability test. The obtained cured material was placed in a constant temperature and humidity chamber at 85°C and 85%RH and left to stand for 1,000 hours in a constant temperature and humidity test. After 1,000 hours, the cured material was removed and left to stand overnight in an environment of 23°C and 50%RH. Following the test, 100 grids of 1mm x 1mm were cut into the cured material using the same procedure as in the adhesion test described above, and peeling was performed using cellophane tape. The number of peeled pieces was observed visually and evaluated according to the following criteria.

[0211] <Evaluation Criteria> ++: The number of detached pieces is less than 5. + : The number of detached pieces is 5 or more but less than 10. - : The number of detached pieces is 10 or more.

[0212] #6: Durability 2 (Heat Cycle Test) Evaluation The cured material prepared in the above moisture permeability test was used to evaluate durability 2 (heat cycle test). The resulting cured material was held at -40°C for 30 minutes, followed by holding at 125°C for 30 minutes. This cycle was repeated 1,000 times. After the test, 100 grid patterns measuring 1 mm x 1 mm were cut into the cured material using the same procedure as in the adhesion test described above, and peeling was performed using cellophane tape. The number of peeled areas was visually observed and evaluated according to the following criteria.

[0213] <Evaluation Criteria> ++: The number of detached pieces is less than 5. + : The number of detached pieces is 5 or more but less than 10. - : The number of detached pieces is 10 or more.

[0214] [Table 1]

[0215] [Table 2]

[0216] [Table 3]

[0217] [Table 4]

[0218] From the results in Tables 1 to 4, it was confirmed that the compositions of the examples exhibited excellent moisture permeability and curability. In particular, from Examples 1 to 5, the compositions containing components (A) and (B) also exhibited excellent coating properties and adhesion. Specifically, from Example 3, it was confirmed that when component (B) is a compound in which the condensed alicyclic ring has a ring structure with three alicyclic rings, and the condensed alicyclic ring is bonded to at least one of an acryloyl group or a methacryloyl group via a linking group, the curability is even better, and the durability is also excellent.

Claims

1. A composition comprising the following component (A) and at least one selected from component (B) and component (C), The content of component (A) is 3 parts by mass or more and 70 parts by mass or less in a total amount of 100 parts by mass of components (A), (B), and (C). The content of other radical polymerizable compounds other than component (A), component (B), and component (C) is less than 50 parts by mass per 100 parts by mass of the solid content of the composition. A composition for forming a moisture barrier. (A) Component: A compound having a group represented by the following general formula (a-1) and a group represented by the following general formula (a-2). (B) Component: A compound having a condensed alicyclic ring and at least one of an acryloyl group and a methacryloyl group. (C) Component: Alicyclic hydrocarbon polymer 【Chemistry 1】 In the formula, R ａ１ This represents a hydrogen atom or a monovalent organic group having 1 to 30 carbon atoms. R ａ２ This represents a hydrogen atom or a methyl group. * indicates the bonding position with other groups.

2. The composition according to claim 1, wherein component (B) is a compound having one condensed alicyclic ring in one molecule.

3. The composition according to claim 1, wherein the content of component (A) is 1 part by mass or more and 90 parts by mass or less per 100 parts by mass of the solid content of the composition.

4. A cured product of the composition according to any one of claims 1 to 3.

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