WO2018117062A1 - Curable composition - Google Patents

Abstract

The present invention provides: a curable composition which forms a cured product having excellent hardness and antifogging properties; and a method for producing this curable composition. A curable composition which contains a component (A) that is a (meth)acrylate mixture obtained by subjecting glycerol and a compound having one (meth)acryloyl group to a transesterification reaction in the presence of catalysts X and Y, said mixture containing glycerol di(meth)acrylate and having a hydroxyl number of 65 mgKOH/g or more. Catalyst X: one or more compounds selected from the group consisting of cyclic tertiary amines having an azabicyclo structure and salts or complexes thereof, amidines and salts or complexes thereof, compounds having a pyridine ring and salts or complexes thereof, and phosphine and salts or complexes thereof. Catalyst Y: a compound containing zinc.

Description

Curable composition

The present invention relates to a curable composition, and preferably to an active energy ray curable composition.
Since the composition of the present invention is excellent in rapid curability, antifogging properties, and flex resistance, particularly when used as an active energy ray curable composition, it can be preferably used in coating agents that require these properties.
In the present specification, an acryloyl group and / or a methacryloyl group is represented as a (meth) acryloyl group, an allyl group and / or a methallyl group is represented as a (meth) allyl group, and an acrylate and / or methacrylate is represented by a (meth) acrylate. And acrylic acid and / or methacrylic acid is represented as (meth) acrylic acid.

(Meth) acrylate is cured by irradiation with active energy rays such as ultraviolet rays and electron beams, or by heating, so as a crosslinking component of a composition such as paint, ink, adhesive, optical lens, filler and molding material, Or it is used in large quantities as a reactive diluent component.
In particular, a composition containing (meth) acrylate having two or more (meth) acryloyl groups and one or more hydroxyl groups in the molecule is derived from fast curing properties derived from a plurality of (meth) acryloyl groups and hydroxyl groups. It is used in various applications utilizing hydrophilicity and reactivity. Especially, the composition containing pentaerythritol tri (meth) acrylate is used in a large amount for various applications because of its industrial availability.

For example, a composition containing pentaerythritol tri (meth) acrylate has a feature of exhibiting antifogging properties derived from its hydroxyl group (see Patent Document 1).

On the other hand, glycerin di (meth) acrylate (hereinafter referred to as “GLY-DA”) is also known as a (meth) acrylate having two or more (meth) acryloyl groups and one or more hydroxyl groups in the molecule.

Conventionally, as a method for producing GLY-DA, a dehydration esterification reaction using glycerin and (meth) acrylic acid as raw materials and a sulfonic acid as a catalyst (see Patent Document 2) is known.

In addition, a transesterification reaction (see Patent Document 3) using glycerol and monofunctional (meth) acrylate as raw materials and an alkali metal as a catalyst is also known.

In addition, a transesterification reaction using glycerin and monofunctional (meth) acrylate as raw materials and lipase as a catalyst (see Patent Document 4) is also known.

An esterification reaction using glycerin and (meth) acrylic acid chloride as raw materials (see Patent Document 5) is also known.

In addition, a method of obtaining GLY-DA by ring-opening addition reaction of glycidyl (meth) acrylate and (meth) acrylic acid is also known (see Patent Document 6).

Also known is a method for obtaining GLY-DA using epichlorohydrin, (meth) acrylic acid and alkali metal salt of (meth) acrylic acid as raw materials (see Patent Document 7).

JP 2016-44244 A JP 2006-257044 A JP-A-56-36433 JP 2007-028995 A Japanese Patent Publication No. 4-069381 JP-A-6-199962 Japanese Patent No. 4859473

However, since GLY-DA has problems in industrial production, it is more expensive than pentaerythritol tri (meth) acrylate and its market distribution is small. The following are problems in manufacturing GLY-DA industrially.
For example, in the dehydration esterification reaction as described in Patent Document 2, after the reaction is completed, unreacted (meth) acrylic acid and the catalyst are removed by extraction washing using water or an aqueous sodium hydroxide solution. The target GLY-DA is distributed to the aqueous layer side because of its high hydrophilicity, and the yield is very low. Further, Patent Document 2 repeats extraction cleaning and concentration using a plurality of organic solvents, and there is room for improvement in productivity.
Moreover, in the method described in Patent Document 3, the yield to GLY-DA is very low. Further, there is no description of a purification method for removing the catalyst after completion of the reaction. In the method described in Patent Document 4, the target GLY-DA is obtained in high yield because it does not undergo extraction washing using water or an aqueous sodium hydroxide solution. However, since a large amount of expensive lipase is used and it takes 3 days to complete the reaction, there is room for improvement in cost and productivity.
In the method described in Patent Document 5, (meth) acrylic acid chloride is expensive, very reactive and unstable, requires strict handling and storage, is extremely corrosive, Since a corrosion resistant reactor is required, there are significant problems in cost and workability.
In the method described in Patent Document 6, glycidyl (meth) acrylate is very toxic, and it is necessary to pay close attention to maintaining a safe working environment. In the method described in Patent Document 7, N-methylpyrrolidone, which is a high-boiling polar solvent, is used in large quantities, and purification and separation after the reaction is extremely difficult. Moreover, since waste containing chlorine is generated from epichlorohydrin used as a raw material, there is room for improvement in industrial implementation.

The present inventors have intensively studied in order to provide a curable composition in which the constituent components are industrially available and the cured product is excellent in hardness and antifogging properties.

The present inventors have intensively studied to solve the above problems. As a result, by using a specific basic catalyst or phosphine-based catalyst, and a zinc-based catalyst in combination, glycerol and a compound having one (meth) acryloyl group are transesterified to produce a reaction containing GLY-DA. The present invention has been completed by finding that a product can be obtained in a high yield and that a curable composition containing the reaction product is effective in solving the above-mentioned problems.
Hereinafter, the present invention will be described in detail.

According to the curable composition of the present invention, preferably the active energy ray curable composition, the constituents are industrially available, are fast curable, and the cured product has excellent hardness and antifogging properties. It becomes.

The present invention is obtained by subjecting glycerol and a compound having one (meth) acryloyl group (hereinafter referred to as “monofunctional (meth) acrylate”) to an ester exchange reaction in the presence of the following catalysts X and Y ( The present invention relates to a curable composition comprising a (A) component which is a (meth) acrylate mixture, which contains GLY-DA and has a hydroxyl value of 65 mgKOH / g or more.
Catalyst X: One or more selected from the group consisting of a cyclic tertiary amine having an azabicyclo structure or a salt or complex thereof, amidine or a salt or complex thereof, a compound having a pyridine ring or a salt or complex thereof, and phosphine or a salt or complex thereof Compound.
Catalyst Y: Compound containing zinc.
Hereinafter, the component (A), other components, and methods of use will be described.

1. Component (A) Component (A) is a (meth) acrylate mixture obtained by subjecting glycerol and a monofunctional (meth) acrylate to an ester exchange reaction in the presence of the catalysts X and Y, and is a GLY-DA A mixture containing [glycerin di (meth) acrylate] and having a hydroxyl value of 65 mgKOH / g or more.

Component (A) is a reaction mixture mainly composed of GLY-DA obtained by the transesterification reaction, and is a mixture containing glycerin mono (meth) acrylate and glycerin tri (meth) acrylate in addition to the compound, The value is 65 mgKOH / g or more. The hydroxyl value of the component (A) is preferably 65 to 400 mgKOH / g, more preferably 100 to 350 mgKOH / g, and particularly preferably 150 to 300 mgKOH / g.
When the hydroxyl value of the component (A) is less than 65 mgKOH / g, the antifogging property of the cured film of the composition is lowered. Moreover, the cured film of a composition can be made excellent in hardness by making a hydroxyl value into 400 mgKOH / g or less.
In the present invention, the hydroxyl value means the number of mg of potassium hydroxide equivalent to the hydroxyl group in 1 g of a sample.

Hereinafter, glycerin, monofunctional (meth) acrylate, catalyst X, catalyst Y, a method for producing component (A), and preferred forms of component (A) will be described.

1-1. The glycerin used as a raw material for the glycerin (A) component may contain a small amount of glycerin condensate such as water and diglycerin. Although there is no restriction | limiting in particular in the purity of glycerol, Preferably it is 90 weight% or more, More preferably, it is 95 weight% or more. When the purity of glycerin is 90% by weight or more, the viscosity of the component (A) is appropriate and easy to handle.
Glycerin may contain a small amount of peroxide derived from the production process. (A) As a density | concentration of the peroxide contained in the glycerol used as a raw material of a component, it is preferable that it is 5 wtppm or less, More preferably, it is 2 wtppm or less. When the concentration of the peroxide is 5 wtppm or less, polymerization of the (meth) acryloyl group is suppressed during production, and the color tone of the reaction solution is good.

In the present invention, glycerin and one or more polyhydric alcohols other than glycerin (hereinafter referred to as “other polyhydric alcohols”) may be used in any combination as long as the effects are not impaired.
In addition, as a ratio when using a polyhydric alcohol together, 50 weight part or less is preferable with respect to a total of 100 weight part of glycerol.

1-2. The monofunctional (meth) acrylate used as a raw material for the monofunctional (meth) acrylate (A) component is a compound having one (meth) acryloyl group in the molecule. For example, it is represented by the following general formula (1). Compounds.

In Formula (1), R ¹ represents a hydrogen atom or a methyl group. R ² represents an organic group having 1 to 50 carbon atoms.

Preferable specific examples of R ² in the general formula (1) include carbon such as methyl group, ethyl group, propyl group, butyl group, pentyl group, hexyl group, heptyl group, octyl group, and 2-ethylhexyl group. An alkyl group of formula 1 to 8, an alkoxyalkyl group such as 2-methoxyethyl group, 2-ethoxyethyl group and 2-methoxybutyl group, N, N-dimethylaminoethyl group, N, N-diethylaminoethyl group, N And dialkylamino groups such as N, N-dimethylaminopropyl group and N, N-diethylaminopropyl group.
Specific examples of R ² in the general formula (1) include the functional groups described in JP 2017-39916 A, JP 2017-39917 A, and International Publication No. 2017/033732. .

In the present invention, these monofunctional (meth) acrylates can be used alone or in combination of two or more.
Among these monofunctional (meth) acrylates, carbon such as methyl (meth) acrylate, ethyl (meth) acrylate, n-butyl (meth) acrylate, i-butyl (meth) acrylate and 2-ethylhexyl (meth) acrylate Preferred are alkyl (meth) acrylates having an alkyl group of 1 to 8; alkoxyalkyl (meth) acrylates such as 2-methoxyethyl acrylate; or N, N-dimethylaminoethyl (meth) acrylate, particularly for glycerin. A (meth) acrylate having an alkyl group having 1 to 4 carbon atoms, which shows good reactivity and is easily available, or an alkoxyalkyl (meth) acrylate having an alkyl group having 1 to 2 carbon atoms is preferable.
Furthermore, an alkoxyalkyl (meth) acrylate having a C 1-2 alkyl group that promotes dissolution of glycerin and exhibits very good reactivity is more preferred, and 2-methoxyethyl (meth) acrylate is particularly preferred.
Furthermore, as monofunctional (meth) acrylate, acrylate is particularly preferable because of its excellent reactivity.

The proportion of glycerin and monofunctional (meth) acrylate used in the method for producing component (A) is not particularly limited, but 0.4 to 10.0 mol of monofunctional (meth) acrylate per mol of hydroxyl group of glycerin. The amount is preferably 0.6 to 5.0 mol. By making the monofunctional (meth) acrylate 0.4 mol or more, side reactions can be suppressed. Moreover, the production amount of (A) component can be increased by making it 10.0 mol or less, and productivity can be improved.

1-3. As the transesterification catalyst in the method for producing the catalyst (A) component, the following catalysts X and Y are used in combination as a catalyst because a reaction product containing GLY-DA can be produced in a high yield.
Catalyst X: Cyclic tertiary amine having an azabicyclo structure or a salt or complex thereof (hereinafter referred to as “azabicyclo compound”), amidine or a salt or complex thereof (hereinafter referred to as “amidine compound”), a compound having a pyridine ring or One or more compounds selected from the group consisting of salts or complexes thereof (hereinafter referred to as “pyridine compounds”) and phosphines or salts or complexes thereof (hereinafter referred to as “phosphine compounds”).
Catalyst Y: Compound containing zinc.
Hereinafter, the catalyst X and the catalyst Y will be described.

1-3-1. Catalyst X
The catalyst X in the method for producing the component (A) is one or more compounds selected from the group consisting of an azabicyclo compound, an amidine compound, a pyridine compound, and a phosphine compound.
The catalyst X is preferably one or more compounds selected from the group consisting of an azabicyclo compound, an amidine compound, and a pyridine compound, among the compound groups described above. These compounds are excellent in catalytic activity and can preferably produce the component (A), and also form a complex with catalyst Y described later during and after the reaction, and the complex is a reaction solution after completion of the reaction by a simple method such as adsorption. Can be easily removed from. In particular, since the complex with the catalyst Y becomes hardly soluble in the reaction solution, the azacyclo compound can be more easily removed by filtration and adsorption.
On the other hand, although the phosphine compound is excellent in catalytic activity, it is difficult to form a complex with the catalyst Y, or when the complex is formed, it is easily soluble in the reaction solution, and the phosphine compound in the reaction solution after the completion of the reaction. Since most of the compound or complex remains dissolved, it is difficult to remove from the reaction solution by a simple method such as filtration and adsorption. For this reason, the phosphine-based catalyst remains in the final product, thereby causing turbidity and catalyst precipitation during storage of the product, and increasing the viscosity or gelation over time. May cause problems.

Specific examples of the azabicyclo compound include various compounds as long as the compound satisfies the cyclic tertiary amine having an azabicyclo structure, a salt of the amine, or a complex of the amine. Preferred compounds include quinuclidine, 3 -Hydroxyquinuclidine, 3-quinuclidinone, 1-azabicyclo [2.2.2] octane-3-carboxylic acid, and triethylenediamine (also known as 1,4-diazabicyclo [2.2.2] octane. DABCO ”).
Specific examples of the azabicyclo compounds include the compounds mentioned in JP-A-2017-39916, JP-A-2017-39917, and International Publication No. 2017/033732.

Specific examples of amidine compounds include imidazole, N-methylimidazole, N-ethylimidazole, 1-benzyl-2-methylimidazole, 1-benzyl-2-phenylimidazole, 1-vinylimidazole, 1-allylimidazole, 1 , 8-diazabicyclo [5.4.0] undec-7-ene (hereinafter referred to as “DBU”), 1,5-diazabicyclo [4.3.0] non-5-ene (hereinafter referred to as “DBN”) N-methylimidazole hydrochloride, DBU hydrochloride, DBN hydrochloride, N-methylimidazole acetate, DBU acetate, DBN acetate, N-methylimidazole acrylate, DBU acrylate, DBN acrylate, and Examples include phthalimide DBU.

Principal examples of pyridine compounds include pyridine, 2-methylpyridine, 3-methylpyridine, 4-methylpyridine, 2-ethylpyridine, 3-ethylpyridine, 4-ethylpyridine, and N, N-dimethyl- 4-aminopyridine (hereinafter referred to as “DMAP”) and the like.
Specific examples of the pyridine-based compound include compounds described in JP-A-2017-39916, JP-A-2017-39917 and International Publication No. 2017/033732.

Examples of the phosphine compound include compounds having a structure represented by the following general formula (2).

[In the formula (2), R ³ , R ⁴ and R ⁵ are each a linear or branched alkyl group having 1 to 20 carbon atoms, a linear or branched alkenyl group having 1 to 20 carbon atoms, a carbon number of 6 Means an aryl group having ˜24 or a cycloalkyl group having 5 to 20 carbon atoms. R ³ , R ⁴ and R ⁵ may be the same or different. ]

Specific examples of the phosphine compound include triphenylphosphine, tris (4-methoxyphenyl) phosphine, tri (p-tolyl) phosphine, tri (m-tolyl) phosphine, tris (4-methoxy-3,5-dimethylphenyl). ) Phosphine and tricyclohexylphosphine.
Specific examples of the phosphine compounds include the compounds mentioned in JP 2017-39916 A, JP 2017-39917 A, and International Publication No. 2017/033732.

In the present invention, these catalysts X can be used alone or in any combination of two or more. Among these catalysts X, quinuclidine, 3-quinuclidinone, 3-hydroxyquinuclidine, DABCO, N-methylimidazole, DBU, DBN and DMAP are preferable, and particularly have good reactivity with most polyhydric alcohols. Of these, the readily available 3-hydroxyquinuclidine, DABCO, N-methylimidazole, DBU and DMAP are preferred.

The proportion of catalyst X used in the method for producing component (A) is not particularly limited, but 0.0001 to 0.5 mol of catalyst X is preferably used with respect to 1 mol of hydroxyl group of glycerin, more preferably 0. .0005 to 0.2 mol. By using the catalyst X in an amount of 0.0001 mol or more, the yield of the reaction product containing the target GLY-DA can be increased. The coloring process can be suppressed, and the purification process after completion of the reaction can be simplified.

1-3-2. Catalyst Y
The catalyst Y is a compound containing zinc.
As the catalyst Y, various compounds can be used as long as they contain zinc, but organic acids zinc and zinc diketone enolate are preferable because of excellent reactivity.
Examples of the organic acid zinc include dibasic acid zinc such as zinc oxalate and a compound represented by the following general formula (3).

[In the formula (3), R ⁶ and R ⁷ are each a linear or branched alkyl group having 1 to 20 carbon atoms, a linear or branched alkenyl group having 1 to 20 carbon atoms, or a 6 to 24 carbon atoms. An aryl group or a cycloalkyl group having 5 to 20 carbon atoms is meant. R ⁶ and R ⁷ may be the same or different. ]
The compound of the formula (3) is preferably a compound in which R ⁶ and R ⁷ are a linear or branched alkyl group or alkenyl group having 1 to 20 carbon atoms. In R ⁶ and R ⁷ , the linear or branched alkyl group or alkenyl group having 1 to 20 carbon atoms is a functional group having no halogen atom such as fluorine and chlorine, and the catalyst Y having the functional group is: This is preferable because a reaction product containing the desired GLY-DA can be produced in a high yield.

Examples of zinc diketone enolate include compounds represented by the following general formula (4).

[In the formula (4), R ⁸ , R ⁹ , R ¹⁰ , R ¹¹ , R ¹² and R ¹³ are each a hydrogen atom, a linear or branched alkyl group having 1 to 20 carbon atoms, or a group having 1 to 20 carbon atoms. A linear or branched alkenyl group, an aryl group having 6 to 24 carbon atoms, or a cycloalkyl group having 5 to 20 carbon atoms is meant. R ⁸ , R ⁹ , R ¹⁰ , R ¹¹ , R ¹² and R ¹³ may be the same or different. ]

Specific examples of the compound containing zinc represented by the general formula (3) include zinc acetate, zinc acetate dihydrate, zinc propionate, zinc octylate, zinc neodecanoate, zinc laurate, zinc myristate, Examples include zinc stearate, zinc cyclohexanebutyrate, zinc 2-ethylhexanoate, zinc benzoate, zinc t-butylbenzoate, zinc salicylate, zinc naphthenate, zinc acrylate, and zinc methacrylate.
In addition, about these compounds containing zinc, when the complex with the hydrate, solvate, or catalyst X exists, this complex with the hydrate, solvate, and catalyst X is also component (A). It can be used as the catalyst Y in the production method.

Specific examples of the compound containing zinc represented by the general formula (4) include zinc acetylacetonate, zinc acetylacetonate hydrate, bis (2,6-dimethyl-3,5-heptanedionato) zinc, bis (2,2,6,6-tetramethyl-3,5-heptanedionato) zinc and bis (5,5-dimethyl-2,4-hexanedionato) zinc. In addition, about these compounds containing zinc, when the complex with the hydrate, solvate, or catalyst X exists, this complex with the hydrate, solvate, and catalyst X is also component (A). It can be used as the catalyst Y in the production method.

As the organic acid zinc and zinc diketone enolate in the catalyst Y, the aforementioned compounds can be used directly, but these compounds can also be generated and used in the reaction system.
For example, zinc compounds such as metal zinc, zinc oxide, zinc hydroxide, zinc chloride and zinc nitrate (hereinafter referred to as “raw zinc compounds”) are used as raw materials. In the case of organic acid zinc, raw zinc compounds and organic acids are used. In the case of zinc diketone enolate, a method of reacting a raw material zinc compound and 1,3-diketone can be used.

In the present invention, these catalysts Y can be used alone or in any combination of two or more. Among these catalysts Y, zinc acetate, zinc propionate, zinc acrylate, zinc methacrylate, and zinc acetylacetonate are preferable, and particularly shows good reactivity with most polyhydric alcohols and is easily available. Zinc acetate, zinc acrylate and zinc acetylacetonate are preferred.

The ratio of the catalyst Y used in the method for producing the component (A) is not particularly limited, but 0.0001 to 0.5 mol of the catalyst Y is preferably used with respect to 1 mol of the total hydroxyl group of glycerol, more preferably 0.0005 to 0.2 mol. By using the catalyst Y in an amount of 0.0001 mol or more, the yield of the reaction product containing the target GLY-DA can be increased. The coloring process can be suppressed, and the purification process after completion of the reaction can be simplified.

1-4. (A) Component Production Method Component (A) is produced by subjecting glycerol and a monofunctional (meth) acrylate to an ester exchange reaction in the presence of the catalysts X and Y.
The ratio of the catalyst X and the catalyst Y in the method for producing the component (A) is not particularly limited, but it is preferable to use 0.005 to 10.0 moles of the catalyst X with respect to 1 mole of the catalyst Y. The amount is preferably 0.05 to 5.0 mol. By using 0.005 mol or more, the yield of the target reaction product containing GLY-DA can be increased, and by making it 10.0 mol or less, by-product formation and reaction liquid coloring can be achieved. It can suppress and the purification process after completion | finish of reaction can be simplified.

The combination of the catalyst X and the catalyst Y used in the present invention is preferably a combination of the catalyst X being an azabicyclo compound, the catalyst Y being a compound represented by the general formula (3), and the azabicyclo compound being DABCO. And a combination in which the compound represented by the general formula (3) is zinc acetate and / or zinc acrylate is particularly preferable.
In addition to being able to obtain a reaction product containing GLY-DA in a good yield, this combination is excellent in color after the reaction is finished (small yellowishness). It can be used suitably. Furthermore, since the catalyst is available at a relatively low cost, it is an economically advantageous production method.

The catalyst X and catalyst Y used in the present invention may be added from the beginning of the above reaction or may be added in the middle. Moreover, a desired use amount may be added all at once, or may be added in divided portions.

The reaction temperature in the method for producing the component (A) is preferably 40 ° C. to 180 ° C., more preferably 60 ° C. to 160 ° C. By setting the reaction temperature to 40 ° C. or higher, the reaction rate can be increased, and by setting it to 180 ° C. or lower, thermal polymerization of (meth) acryloyl groups in raw materials and products is suppressed, and coloring of the reaction liquid is performed. And the purification process after completion of the reaction can be simplified.

The reaction pressure in the method for producing the component (A) is not particularly limited as long as the predetermined reaction temperature can be maintained, and may be performed in a reduced pressure state or in a pressurized state. The reaction pressure is preferably 0.000001 to 10 MPa (absolute pressure).

In the manufacturing method of (A) component, the monohydric alcohol derived from monofunctional (meth) acrylate byproduces with progress of transesterification.
When a part of the hydroxyl group of glycerin (for example, about 50 mol%) is (meth) acrylated, the monohydric alcohol is allowed to coexist in the reaction system to be in an equilibrium state, and the catalyst is removed by adsorption or deactivation. By distilling off the monohydric alcohol and the raw material monofunctional (meth) acrylate, a product having a controlled acrylate ratio can be stably produced.
On the other hand, when the hydroxyl group of glycerin is positively (meth) acrylated, it is preferable to discharge the monohydric alcohol out of the reaction system to further promote the progress of the transesterification reaction.

In the method for producing the component (A), the reaction can be carried out without using a solvent, but a solvent may be used as necessary.
Specific examples of the solvent include n-hexane, cyclohexane, methylcyclohexane, n-heptane, n-octane, n-nonane, n-decane, benzene, toluene, xylene, ethylbenzene, diethylbenzene, isopropylbenzene, amylbenzene, diamyl. Hydrocarbons such as benzene, triamylbenzene, dodecylbenzene, didodecylbenzene, amyltoluene, isopropyltoluene, decalin and tetralin; diethyl ether, dipropyl ether, diisopropyl ether, dibutyl ether, diamyl ether, diethyl acetal, dihexyl acetal , T-butyl methyl ether, cyclopentyl methyl ether, tetrahydrofuran, tetrahydropyran, trioxane, dioxane, anisole, diphenyl ether Ethers such as tellurium, dimethylcellosolve, diglyme, triglyme and tetraglyme; crown ethers such as 18-crown-6; esters such as methyl benzoate and γ-butyrolactone; acetone, methyl ethyl ketone, methyl isobutyl ketone, cyclohexanone, acetophenone And ketones such as benzophenone; carbonate compounds such as dimethyl carbonate, diethyl carbonate, ethylene carbonate, propylene carbonate, and 1,2-butylene carbonate; sulfones such as sulfolane; sulfoxides such as dimethyl sulfoxide; ureas or derivatives thereof Ionic liquids such as phosphine oxides such as tributylphosphine oxide, imidazolium salts, piperidinium salts and pyridinium salts; silicon oil; and water Is mentioned.
Among these solvents, at least one solvent selected from the group consisting of hydrocarbons, ethers, carbonate compounds and ionic liquids is preferred.
These solvents may be used alone, or two or more kinds may be arbitrarily combined and used as a mixed solvent.

In the method for producing the component (A), an inert gas such as argon, helium, nitrogen and carbon dioxide may be introduced into the system for the purpose of maintaining a good color tone of the reaction solution. For the purpose of preventing polymerization of oxygen, an oxygen-containing gas may be introduced into the system. Specific examples of the oxygen-containing gas include air, a mixed gas of oxygen and nitrogen, a mixed gas of oxygen and helium, and the like. As a method for introducing the oxygen-containing gas, there is a method in which the oxygen-containing gas is dissolved in the reaction solution or blown into the reaction solution (so-called bubbling).

In the manufacturing method of (A) component, it is preferable to add a polymerization inhibitor in the reaction liquid for the purpose of preventing the polymerization of the (meth) acryloyl group.
Specific examples of the polymerization inhibitor include hydroquinone, tert-butylhydroquinone, hydroquinone monomethyl ether, 2,6-di-tert-butyl-4-methylphenol, 2,4,6-tri-tert-butylphenol, 4-tert -Butylcatechol, benzoquinone, phenothiazine, N-nitroso-N-phenylhydroxylamine ammonium, 2,2,6,6-tetramethylpiperidine-1-oxyl, 4-hydroxy-2,2,6,6-tetramethylpiperidine Organic polymerization inhibitors such as -1-oxyl, inorganic polymerization inhibitors such as copper chloride, copper sulfate and iron sulfate, and organic salt systems such as copper dibutyldithiocarbamate and N-nitroso-N-phenylhydroxylamine aluminum salt A polymerization inhibitor is mentioned.
A polymerization inhibitor may be added individually by 1 type, or may be added in combination of 2 or more types, may be added from the beginning of this invention, and may be added from the middle. Moreover, a desired use amount may be added all at once, or may be added in divided portions. Moreover, you may add continuously via a rectification column.
The addition ratio of the polymerization inhibitor is preferably 5 to 30,000 wtppm in the reaction solution, more preferably 25 to 10,000 wtppm. By setting this ratio to 5 wtppm or more, the polymerization inhibition effect can be sufficiently exerted, and by setting it to 30,000 wtppm or less, coloring of the reaction solution can be suppressed, and the purification process after completion of the reaction can be simplified. Moreover, the fall of the cure rate of the (A) component obtained can be prevented.

The reaction time in the production method of component (A) varies depending on the type and amount of catalyst used, reaction temperature, reaction pressure, etc., but is preferably 0.1 to 150 hours, more preferably 0.5 to 80 hours.

(A) The manufacturing method of a component can be implemented by any method of a batch type, a semibatch type, and a continuous type. As an example of a batch system, glycerin, monofunctional (meth) acrylate, a catalyst and a polymerization inhibitor are charged into a reactor, and stirred at a predetermined temperature while bubbling oxygen-containing gas into the reaction solution. Then, it can implement by the method of producing | generating the target (A) component by extracting the monohydric alcohol byproduced with progress of transesterification from a reactor by predetermined | prescribed pressure.

For the reaction product obtained by the method for producing the component (A), it is preferable to carry out a separation / purification operation because the desired reaction product containing GLY-DA can be obtained with high purity.
Examples of the separation / purification operation include an adsorption operation, a crystallization operation, a filtration operation, a distillation operation, and an extraction operation, and these are preferably combined. The adsorption operation includes adsorption of a catalyst by an adsorbent, and examples of the adsorbent include aluminum silicate. Examples of the crystallization operation include cooling crystallization and concentrated crystallization. Examples of the filtration operation include pressure filtration, suction filtration, and centrifugal filtration. Examples of the distillation operation include simple distillation, fractional distillation, molecular distillation, and steam distillation. Examples of the extraction operation include solid-liquid extraction and liquid-liquid extraction.
A solvent may be used in the separation and purification operation. Further, a neutralizing agent for neutralizing the catalyst and / or polymerization inhibitor used in the present invention, an acid and / or alkali for decomposing or removing by-products, activated carbon for improving the color tone, filtration You may use diatomaceous earth etc. for improving efficiency and filtration speed.

1-5. Preferred Form of Component (A) Component (A) is a mixture of reaction products containing GLY-DA obtained by transesterification of glycerin and monofunctional (meth) acrylate, and the number of (meth) acryloyl groups is different It is a mixture of (meth) acrylate and side reaction product. Specifically, the component (A) includes GLY-DA, glycerin mono (meth) acrylate and glycerin tri (meth) acrylate as (meth) acrylates having different numbers of (meth) acryloyl groups, As a side reaction product having a Michael addition type structure, a side reaction product having a Rauhut-Currier reaction type structure, a side reaction product derived from a polymerization inhibitor, and the like. Depending on the production conditions, it contains a small amount of unreacted glycerin used as a raw material.

The content of the above-mentioned side reaction product contained in the component (A) includes the side reaction product having the Michael addition type structure, the side reaction product having the Rauhut-Curier reaction type structure, and the side reaction derived from the polymerization inhibitor. The total weight of the product and glycerin used as a raw material is preferably less than 40% by weight, more preferably less than 30% by weight, and still more preferably less than 20% by weight. When the total content of these by-products is less than 40% by weight, the viscosity of the component (A) is moderate and excellent in handleability, the curing rate of the curable composition containing the component (A), and the cured film Excellent hardness.

The purity of GLY-DA contained in component (A) is preferably 30% or more, more preferably 40% or more, and still more preferably 50%, as determined using the following formula (1). % Or more. By setting the purity of GLY-DA to 30% or more, the curing rate of the curable composition containing the component (A) is excellent, and the cured film has excellent hardness and antifogging properties.

Purity of GLY-DA (%)
= [(D × 1.27) / (M × 1.74 + D × 1.27 + T)] × 100 (1)
D, M, and T in the calculation formula (1) are obtained by analyzing the component (A) using a high performance liquid chromatograph (hereinafter referred to as “HPLC”) equipped with an ultraviolet (UV) detector. Mean value.
D: GLY-DA peak area at 210 nm M: peak area of glycerol mono (meth) acrylate at 210 nm T: peak area of glycerol tri (meth) acrylate at 210 nm The peak area by HPLC is as follows: It means the value measured in.
・ Detector: UV detector, detection wavelength 210 nm
Column type: A column packed with silica gel modified with an alkyl group having 18 carbon atoms. Specifically, ACQUITY UPLC BEH C18 (Part No. 186002350, manufactured by Waters Co., Ltd., column inner diameter 2.1 mm, column length 50 mm )
Column temperature: 40 ° C
-Composition of eluent: 0.03% by weight trifluoroacetic acid aqueous solution and methanol mixed solution-Eluent flow rate: 0.3 mL / min

(A) A value obtained by gel permeation chromatography (hereinafter referred to as “GPC”) measurement as an index of the weight average molecular weight (hereinafter referred to as “Mw”) of the component, which is a monofunctional (meth) acrylate and The Mw of the component (A) excluding the detection peak derived from the solvent is preferably less than 350, more preferably less than 340, and particularly preferably less than 330.
When the component (A) has an Mw of less than 350, it means that there are few high molecular weight bodies (hereinafter referred to as “side reaction high molecular weight bodies”) due to side reactions (Michael addition, etc.) other than (meth) acrylate formation. The component (A) is preferable because it has a low viscosity and is excellent in operability. On the other hand, the reaction product containing GLY-DA obtained by the dehydration esterification reaction or the like contains more side reaction high molecular weight products than the component (A) obtained by the transesterification reaction of the present invention. These side-reaction high molecular weight substances not only cause high viscosity, but are also distributed to the aqueous layer in the extraction washing process using water or aqueous sodium hydroxide solution after the reaction is completed, so the yield is greatly increased. descend.

The (meth) acrylate is preferably an acrylate from the viewpoint of the reactivity during the transesterification reaction and the rapid curability of the component (A).

2. Curable composition TECHNICAL FIELD This invention relates to the curable composition containing the said (A) component.
As a method for producing the composition, a mixture of reaction products containing GLY-DA obtained by subjecting glycerol and a monofunctional (meth) acrylate to a transesterification reaction in the presence of the catalysts X and Y, A production method including a step of producing a mixture (A) having a hydroxyl value of 65 mgKOH / g or more is preferred.
According to the said manufacturing method, since (A) component can be obtained with a high yield, it is excellent in cost and productivity. In addition, the component (A) obtained by the production method is preferable because it has a low amount of side reaction high molecular weight and is easy to handle because of low viscosity, and is excellent in fast curability, hardness of the cured product and antifogging property.
What is necessary is just to follow the manufacturing method of above-described (A) component as the said process.
Furthermore, when blending other components described later, the component (A) and other components may be stirred and mixed.

What is necessary is just to set suitably as a viscosity of a composition according to the objective.
When the component (A) is used for a preferred application such as a coating agent, ink, and pattern formation, it may be appropriately set according to the purpose, preferably 1 to 100,000 mPa · s, more preferably 5 to 50, 000 mPa · s. By setting it as the said viscosity range, it is excellent in the leveling property at the time of the coating of a composition, and shall be excellent in the external appearance of hardened | cured material.
The viscosity in the present invention means a value measured at 25 ° C. using an E type viscometer (cone plate type viscometer).

The content of the component (A) in the composition is preferably 20 to 100% by weight with respect to 100% by weight of the total amount of the curable components in terms of fast curability, hardness and antifogging, More preferably, it is ˜100% by weight.
In the present invention, the “curable component” is “a component that is cured by heat or active energy rays”, means the component (A), and when blending the component (D) described later, ) And (D) components.
Furthermore, compounds having polymerizable functional groups other than the components (A) and (D) such as cationic curable compounds (for example, epoxy compounds and oxetane compounds) and reactive surfactants (hereinafter “other polymerizable components”). In the case of blending, the “curable component” means “(A) component and other polymerizable component” and “(A) component, (D) component and other polymerizable component”.

Although the composition of this invention can be used for both an active energy ray hardening-type composition and a thermosetting type composition, an active energy ray hardening-type composition is preferable.
Further, the composition of the present invention can be used in any form of a solvent-free composition containing no organic solvent, a solvent-type composition containing an organic solvent, and an aqueous composition in which the component (A) is dissolved or dispersed in water. can do. In the aqueous composition in which the component (A) is dispersed in water, a commonly used emulsifier or a reactive emulsifier described later can be used as the dispersant.

The composition of the present invention contains (A) as an essential component, but various components can be blended depending on the purpose.
Other preferred components include a photopolymerization initiator (hereinafter referred to as “component (B)”), a thermal polymerization initiator (hereinafter referred to as “component (C)”), and an ethylenic polymer other than the component (A). Compound having saturated group [hereinafter referred to as “component (D)”], pigment or dye [hereinafter referred to as “component (E)”], organic solvent or water (hereinafter referred to as “component (F)”), colloidal Inorganic fine particles (hereinafter referred to as “component (G)”), polymers (hereinafter referred to as “component (H)”), reactive surfactants (hereinafter referred to as “component (I)”), and the like.
Hereinafter, these components will be described.
In addition, the other component mentioned later may use only 1 type of the illustrated compound, and may use 2 or more types together.

2-1. (B) Component When the composition of the present invention is used as an active energy ray curable composition and further used as an electron beam curable composition, it does not contain the component (B) (photopolymerization initiator) and is an electron. It can also be cured by a wire.
When the composition of the present invention is used as an active energy ray-curable composition, particularly when ultraviolet rays or visible rays are used as active energy rays, it is necessary to further contain the component (B).
When an electron beam is used as the active energy ray, it is not always necessary to add it, but a small amount can be added as necessary in order to improve curability.

Specific examples of the component (B) include benzyldimethyl ketal, 1-hydroxycyclohexyl phenyl ketone, 2-hydroxy-2-methyl-1-phenylpropan-1-one, and 1- [4- (2-hydroxyethoxy) phenyl. ] -2-Hydroxy-2-methyl-1-propan-1-one, oligo [2-hydroxy-2-methyl-1- [4-1- (methylvinyl) phenyl] propanone, 2-hydroxy-1- [ 4- [4- (2-hydroxy-2-methyl-propionyl) benzyl] phenyl] -2-methylpropan-1-one, 2-methyl-1- [4- (methylthio)] phenyl] -2-morpholinopro Pan-1-one, 2-benzyl-2-dimethylamino-1- (4-morpholinophenyl) butan-1-one, 2-dimethylamino-2- 4-methylbenzyl) -1- (4-morpholin-4-ylphenyl) butan-1-one and 3,6-bis (2-methyl-2-morpholinopropionyl) -9-n-octylcarbazole Acetophenone compounds;
Benzoin compounds such as benzoin, benzoin ethyl ether, benzoin isopropyl ether and benzoin isobutyl ether;
Benzophenone, 2-methylbenzophenone, 3-methylbenzophenone, 4-methylbenzophenone, 2,4,6-trimethylbenzophenone, 4-phenylbenzophenone, methyl-2-benzophenone, 1- [4- (4-benzoylphenylsulfanyl) phenyl ] -2-Methyl-2- (4-methylphenylsulfonyl) propan-1-one, 4,4′-bis (dimethylamino) benzophenone, 4,4′-bis (diethylamino) benzophenone and 4-methoxy-4 ′ -Benzophenone compounds such as dimethylaminobenzophenone;
Such as bis (2,4,6-trimethylbenzoyl) phenylphosphine oxide, 2,4,6-trimethylbenzoyldiphenylphosphine oxide, and bis (2,6-dimethoxybenzoyl) -2,4,4-trimethylpentylphosphine oxide. Acylphosphine oxide compounds; and thioxanthone, 2-chlorothioxanthone, 2,4-diethylthioxanthone, isopropylthioxanthone, 1-chloro-4-propylthioxanthone, 3- [3,4-dimethyl-9-oxo-9H-thioxanthone-2 -Iloxy] -2-hydroxypropyl-N, N, N-trimethylammonium chloride and thioxanthone compounds such as fluorothioxanthone.
Examples of other compounds include benzyl, ethyl (2,4,6-trimethylbenzoyl) phenyl phosphinate, methyl phenylglyoxylate, ethyl anthraquinone, phenanthrenequinone, camphorquinone, and the like.

The content ratio of the component (B) is preferably 10 parts by weight or less, more preferably 0.1 to 10 parts by weight with respect to 100 parts by weight of the total amount of the curable components.
When the component (B) is used alone, it may be carried out in accordance with conventional means of normal radical thermal polymerization. In some cases, the reaction rate is further increased after photocuring in combination with the component (C) (thermal polymerization initiator). For the purpose of improving the temperature, thermosetting can also be performed.

2-2. (C) component When using the composition of this invention as a thermosetting type composition, (C) component (thermal polymerization initiator) can be mix | blended.
As the component (C), various compounds can be used, and organic peroxides and azo initiators are preferable.
Specific examples of the organic peroxide include 1,1-bis (t-butylperoxy) 2-methylcyclohexane, 1,1-bis (t-hexylperoxy) -3,3,5-trimethylcyclohexane, , 1-bis (t-hexylperoxy) cyclohexane, 1,1-bis (t-butylperoxy) -3,3,5-trimethylcyclohexane, 1,1-bis (t-butylperoxy) cyclohexane, , 2-bis (4,4-dibutylperoxycyclohexyl) propane, 1,1-bis (t-butylperoxy) cyclododecane, t-hexylperoxyisopropyl monocarbonate, t-butylperoxymaleic acid, t- Butyl peroxy-3,5,5-trimethylhexanoate, t-butyl peroxylaurate, 2,5-dimethyl-2 5-di (m-toluoylperoxy) hexane, t-butylperoxyisopropyl monocarbonate, t-butylperoxy 2-ethylhexyl monocarbonate, t-hexylperoxybenzoate, 2,5-dimethyl-2,5- Di (benzoylperoxy) hexane, t-butylperoxyacetate, 2,2-bis (t-butylperoxy) butane, t-butylperoxybenzoate, n-butyl-4,4-bis (t-butylperoxy) Oxy) valerate, di-t-butylperoxyisophthalate, α, α'-bis (t-butylperoxy) diisopropylbenzene, dicumyl peroxide, 2,5-dimethyl-2,5-di (t-butyl) Peroxy) hexane, t-butylcumyl peroxide, di-t-butyl peroxide, p-menthane hydroperoxide, 2,5-dimethyl-2,5-di (t-butylperoxy) hexyne-3, diisopropylbenzene hydroperoxide, t-butyltrimethylsilyl peroxide, 1,1,3,3- Examples thereof include tetramethylbutyl hydroperoxide, cumene hydroperoxide, t-hexyl hydroperoxide, and t-butyl hydroperoxide.
Specific examples of the azo compound include 1,1′-azobis (cyclohexane-1-carbonitrile), 2- (carbamoylazo) isobutyronitrile, 2-phenylazo-4-methoxy-2,4-dimethylvaleronitrile. Azodi-t-octane, azodi-t-butane, and the like.
These may be used alone or in combination of two or more. Moreover, an organic peroxide can also be made into a redox reaction by combining with a reducing agent.

(C) As a content rate of a component, 10 weight part or less is preferable with respect to 100 weight part of sclerosing | hardenable component total amount.
When the component (C) is used alone, it may be carried out in accordance with conventional means for radical thermal polymerization. In some cases, the reaction rate is further used after being combined with the component (B) (photopolymerization initiator) and photocured. For the purpose of improving the temperature, thermosetting can also be performed.

2-3. Component (D) Component (D) is a compound having an ethylenically unsaturated group other than component (A), and is blended for the purpose of imparting various physical properties to the cured product of the composition.
Examples of the ethylenically unsaturated group in component (D) include a (meth) acryloyl group, a (meth) acrylamide group, a maleimide group, a vinyl group, and a (meth) allyl group, with a (meth) acryloyl group being preferred.
In the following, “monofunctional” means a compound having one ethylenically unsaturated group, “X function” means a compound having X ethylenically unsaturated groups, and “polyfunctional”. Means a compound having two or more ethylenically unsaturated groups.
Specific examples of the component (D) include (meth) acrylate compounds, (meth) acrylamides, vinyl ether compounds, maleimide compounds, and the like, and (meth) acrylate compounds are preferred. Among these compounds, acrylate compounds, acrylamide compounds, or vinyl ether compounds are preferable from the viewpoint of curability, and acrylate compounds are more preferable.

In the component (D), the polyfunctional ethylenically unsaturated compound is a compound having two ethylenically unsaturated groups (D-1) [hereinafter referred to as “component (D-1)”], 3 or more Examples thereof include compounds having an ethylenically unsaturated group (D-2) [hereinafter referred to as “component (D-2)”] and monofunctional ethylenically unsaturated compounds (hereinafter referred to as “component (D-3)”). .
Hereinafter, the components (D-1) to (D-3) will be described.

2-3-1. Component (D-1) The component (D-1) is a compound having two ethylenically unsaturated groups other than the component (A), and may be a low molecular weight compound or an oligomer. .

When a low molecular weight monomer is blended as the component (D-1), a low-viscosity composition can be obtained without a solvent. Moreover, when a high molecular weight urethane (meth) acrylate oligomer is blended, it is possible to impart elongation to the cured film and improve adhesion to the adherend.

Specific examples of the component (D-1) include, for example, ethylene glycol di (meth) acrylate, propylene glycol di (meth) acrylate, butanediol di (meth) acrylate, neopentyl glycol di (meth) acrylate, hexanediol di Di (meth) acrylates of aliphatic diols such as (meth) acrylate and nonanediol di (meth) acrylate;
Di (meth) acrylates of alicyclic diols such as cyclohexanedimethanol di (meth) acrylate, norbornane dimethylol di (meth) acrylate and tricyclodecane dimethylol di (meth) acrylate;
Polyalkylene glycol di (meth) acrylates such as polyethylene glycol di (meth) acrylate, polypropylene glycol di (meth) acrylate, polytetramethylene glycol di (meth) acrylate;
Di (meth) acrylate of an alkylene oxide adduct of a compound having two phenolic hydroxyl groups in one molecule such as di (meth) acrylate of an alkylene oxide adduct of bisphenol A, an alkylene oxide adduct of bisphenol F;
So-called epoxy (meth) acrylates such as a compound in which (meth) acrylic acid is added to a bisphenol A type epoxy resin;
So-called polyester (meth) acrylates, such as compounds in which ethylene glycol, phthalic anhydride and (meth) acrylic acid are esterified; and
Examples include so-called urethane (meth) acrylates such as compounds obtained by urethanation reaction of isophorone diisocyanate, polymer diol, and hydroxyalkyl (meth) acrylate.
Here, examples of the polymer diol include polyether diol, polyester diol, polycarbonate diol, or diol having a plurality of these skeletons.

Specific examples of the component (D-1) include 2-vinyloxyethyl (meth) acrylate, 2-vinyloxyethoxyethyl (meth) acrylate, 1,4-butanediol divinyl ether, neopentyl glycol divinyl ether, cyclohexane di Bifunctional monomers including functional groups other than (meth) acryloyl groups such as methanol divinyl ether, diethylene glycol divinyl ether, triethylene glycol divinyl ether, and dipropylene glycol divinyl ether are also included.

When the component (D-1) is blended, the preferable content varies depending on the use of the composition of the present invention. In the coating varnish application for paper and plastic film, the content of the component (D-1) is preferably 0 to 80 parts by weight and preferably 0 to 70 parts by weight with respect to 100 parts by weight of the curable component. More preferred.
On the other hand, in the hard coat application, the content of the component (D-1) is preferably 0 to 40 parts by weight, more preferably 0 to 20 parts by weight with respect to 100 parts by weight of the curable component.

2-3-2. Component (D-2) The component (D-2) is a compound having three or more ethylenically unsaturated groups other than the component (A), and may be a low molecular weight compound or an oligomer. good.

Specific examples of component (D-2) include, for example, trimethylolpropane tri (meth) acrylate, pentaerythritol tri- or tetra (meth) acrylate, ditrimethylolpropane tri- or tetra (meth) acrylate, diglycerin tri- Or tetra (meth) acrylate, dipentaerythritol tri, tetra, penta or hexa (meth) acrylate, tripentaerythritol tri, tetra, penta, hexa, hepta, and octa (meth) acrylate, polypentaerythritol poly (meta ) Polyol, poly (meth) acrylate, such as acrylate, polyglycerin poly (meth) acrylate;
Tri (meth) acrylate of glycerin alkylene oxide adduct, tri (meth) acrylate of trimethylolpropane alkylene oxide adduct, tri or tetra (meth) acrylate of pentaerythritol alkylene oxide adduct, tri of diglycerin alkylene oxide adduct or Tetra (meth) acrylate, poly (meth) acrylate of polyglycerol alkylene oxide adduct, tri- or tetra (meth) acrylate of ditrimethylolpropane alkylene oxide adduct, tri-, tetra-, penta- or hexa- of dipentaerythritol alkylene oxide adduct (Meth) acrylate, tripentaerythritol alkylene oxide adduct tri, tetra, penta, hexa, hepta, and octa (meth) Acrylate, poly poly pentaerythritol alkylene oxide adduct (meth) acrylates, poly (meth) acrylate polyglycerol alkylene oxide adduct, poly (meth) acrylates of a polyol alkylene oxide adduct;
Tri (meth) acrylates of isocyanuric acid alkylene oxide adducts;
Michael addition-type multimers of hydroxyl-containing polyfunctional acrylates, such as polyfunctional acrylates in which the hydroxyl groups of pentaerythritol triacrylate are polymerized by Michael addition to the acrylate;
Polyfunctional urethane (meth), which is a reaction product of a compound having a hydroxyl group and three or more (meth) acryloyl groups, such as pentaerythritol tri (meth) acrylate and dipentaerythritol penta (meth) acrylate, and an organic polyisocyanate Acrylate;
Polyfunctional epoxy (meth) acrylates such as phenolic novolac epoxy resin and acrylic acid added trifunctional or higher functional (meth) acrylates; and polyols having 3 or more hydroxyl groups in one molecule such as trimethylolpropane and anhydrous Polyfunctional polyester (meth) acrylates, such as polyester (meth) acrylate which consists of acid anhydrides, such as phthalic acid, and (meth) acrylic acid are mentioned.
Examples of the alkylene oxide adduct include ethylene oxide adduct, propylene oxide adduct, ethylene oxide and propylene oxide adduct, and the like.
Examples of the organic polyisocyanate include hexamethylene diisocyanate, tetramethylene diisocyanate, trimethylhexamethylene diisocyanate, lysine diisocyanate, isophorone diisocyanate, norbornane diisocyanate, hydrogenated tolylene diisocyanate, hydrogenated 4,4′-diphenylmethane diisocyanate, hydrogenated xylylene. Examples thereof include range isocyanate, 4,4′-dicyclohexylmethane diisocyanate, hexamethylene diisocyanate trimer, and the like.

When the composition of the present invention is used as a hard coat, it preferably contains dipentaerythritol poly (meth) acrylate as the component (D-2), and can improve the curability and hardness of the cured composition. it can. The component (D-2) preferably contains a urethane (meth) acrylate having 3 or more (meth) acryloyl groups, and the curability and flexibility of the cured composition can be improved.
As component (D-2), dipentaerythritol poly (meth) acrylate, component (D-2-1) and urethane (meth) acrylate having three or more (meth) acryloyl groups may be used in combination. The scratch resistance of the cured product can be improved.

When the component (D-2) is blended, the preferred content varies depending on the use of the composition of the present invention.
In hard coat applications, the amount is preferably 0 to 80 parts by weight, more preferably 0 to 70 parts by weight with respect to 100 parts by weight of the curable component.
On the other hand, in the active energy ray curable coating varnish application for paper and plastic film, the amount is preferably 0 to 40 parts by weight, more preferably 0 to 20 parts by weight with respect to 100 parts by weight of the curable component.

2-3-3. Component (D-3) Component (D-3) is a compound having one ethylenically unsaturated group per molecule, and may be a low molecular weight compound or an oligomer.
By blending the component (D-3), it is possible to impart elongation to the cured film or improve the adhesion to the adherend.

Specific examples of the component (D-3) include the same compounds as the monofunctional (meth) acrylate described above.
Examples of compounds other than the above-mentioned monofunctional (meth) acrylate include 2-hydroxyethyl (meth) acrylate, 2-hydroxypropyl (meth) acrylate, 4-hydroxybutyl (meth) acrylate, and 1,4-cyclohexane. Dimethylol mono (meth) acrylate, dicyclopentenyloxyethyl (meth) acrylate, (meth) acrylate of phenol alkylene oxide adduct, (meth) acrylate of p-cumylphenol alkylene oxide adduct, o-phenylphenol alkylene oxide (Meth) acrylate of adduct, (meth) acrylate of nonylphenol alkylene oxide adduct, (meth) acrylate of alkylene oxide adduct of 2-ethylhexyl alcohol, pentanediol mono ( Acrylate), hexanediol mono (meth) acrylate, diethylene glycol mono (meth) acrylate, triethylene glycol mono (meth) acrylate, tetraethylene glycol mono (meth) acrylate, polyethylene glycol mono (meth) acrylate, di Propylene glycol mono (meth) acrylate, tripropylene glycol mono (meth) acrylate, polypropylene glycol mono (meth) acrylate, 2-hydroxy-3-phenoxypropyl (meth) acrylate, 2-hydroxy-3-butoxypropyl ( (Meth) acrylate, tetrahydrofurfuryl (meth) acrylate, caprolactone-modified tetrahydrofurfuryl (meth) acrylate, (2-ethyl-2-methyl- , 3-Dioxolan-4-yl) methyl (meth) acrylate, (2-isobutyl-2-methyl-1,3-dioxolan-4-yl) methyl (meth) acrylate, (1,4-dioxaspiro [4,5 ] Decan-2-yl) methyl (meth) acrylate, 2-oxotetrahydrofuran-3-yl (meth) acrylate, (5-ethyl-1,3-dioxane-5-yl) methyl (meth) acrylate, glycidyl (meth) ) Acrylate, 3,4-epoxycyclohexylmethyl (meth) acrylate, (3-ethyloxetane-3-yl) methyl (meth) acrylate, 2- (meth) acryloyloxyethyl isocyanate, N- (meth) acryloyloxyethylhexa Hydrophthalimide, N- (meth) acryloyloxyethyl tet Lahydrophthalimide, 2- (meth) acryloyloxyethyl hexahydrophthalic acid, 2- (meth) acryloyloxyethyl succinic acid, ω-carboxy-polycaprolactone mono (meth) acrylate, 3- (meth) acryloyloxypropyltrimethoxy Examples thereof include silane, 3- (meth) acryloyloxypropyldimethoxymethylsilane, 3- (meth) acryloyloxypropyltriethoxysilane, and 2- (meth) acryloyloxyethyl acid phosphate.
A compound having both an ethylenically unsaturated group and an alkoxysilyl group is also called a silane coupling agent. A silane coupling agent or a compound having both an ethylenically unsaturated group and a phosphoric acid group is preferable for improving the adhesion to an inorganic substrate.

Components (D-3) other than monofunctional (meth) acrylates include N-vinylpyrrolidone, N-vinylcaprolactam, (meth) acrylamide, (meth) acryloylmorpholine, N, N-dimethyl (meth) acrylamide, N , N-diethyl (meth) acrylamide, N-hydroxyethyl (meth) acrylamide, N-isopropyl (meth) acrylamide, maleic anhydride, N-phenylmaleimide, N-hydroxyethylmaleimide, N-hydroxyethylcitracimide, cyclohexyl Vinyl ether, 2-hydroxyethyl vinyl ether, 4-hydroxybutyl vinyl ether, 1,4-cyclohexanedimethanol monovinyl ether, diethylene glycol monovinyl ether, dipropylene glycol monovinyl ether Acetoxyethyl vinyl ether, acetoxy butyl ether, acetyl cyclohexanedimethanol monovinyl ether, acetyl diethylene glycol ether, glycidyl Giro carboxyethyl vinyl ether, glycidyl Giro carboxybutyl ether, etc. glycidyl cyclohexanedimethanol monovinyl ether and glycidyl diethylene glycol vinyl ether.

When the component (D-3) is blended, the preferred content varies depending on the use of the composition of the present invention, the type of adherend, the light source, the curing atmosphere, and the like.
In the case of a hard coat cured under air, a UV-LED curable clear coating agent and an ink, the content ratio of the component (D-3) is 100% by weight of the curable component from the viewpoint of rapid curing. The content is preferably 0 to 30% by weight, and more preferably 0 to 15% by weight.
On the other hand, when it is applied to an adherend that is difficult to adhere, or when ultra-low viscosity is required, such as inkjet ink, the component (D-3) is 80% by weight in 100% by weight of the curable component. You may include with the following content.

2-4. Component (E) The component (E) is a coloring component selected from pigments or dyes, and is necessary when the composition of the present invention is used as an ink composition.
Examples of the pigment include organic pigments and inorganic pigments.
Specific examples of organic pigments include insoluble azo pigments such as toluidine red, toluidine maroon, Hansa Yellow, benzidine yellow and pyrazolone red; soluble azo pigments such as Ritol Red, Helio Bordeaux, Pigment Scarlet and Permanent Red 2B; Alizarin, Indantron And derivatives from vat dyes such as thioindigo maroon; phthalocyanine organic pigments such as phthalocyanine blue and phthalocyanine green; quinacridone organic pigments such as quinacridone red and quinacridone magenta; perylene organic pigments such as perylene red and perylene scarlet; Isoindolinone organic pigments such as indolinone yellow and isoindolinone orange; pyranthrone organic pigments such as pyranthrone red and pyranthrone orange Thioindigo organic pigments; condensed azo organic pigments; benzimidazolone organic pigments; quinophthalone organic pigments such as quinophthalone yellow; isoindoline organic pigments such as isoindoline yellow; and other pigments such as flavanthrone yellow and acylamide Examples include yellow, nickel azo yellow, copper azomethine yellow, perinone orange, anthrone orange, dianthraquinonyl red, and dioxazine violet.
Specific examples of the inorganic pigment include carbon black, titanium oxide, barium sulfate, calcium carbonate, zinc white, lead sulfate, yellow lead, zinc yellow, red rose (red iron oxide (III)), cadmium red, ultramarine blue, Examples include bitumen, chromium oxide green, cobalt green, amber, titanium black, and synthetic iron black.
Examples of the dye include azo dyes and extracts from plants.
The content ratio of the component (E) may be appropriately adjusted according to the application and film thickness, but in the case of the ink composition, it is preferably 5 to 200 parts by weight with respect to 100 parts by weight of the total curable components. More preferred is 10 to 100 parts by weight.

2-5. Component (F) The composition of the present invention may contain an organic solvent or water as the component (F) for the purpose of reducing the viscosity.
Specific examples of the organic solvent include, for example, low molecular weight alcohol compounds such as methanol, ethanol, isopropanol and butanol; alkylene glycol monoether compounds such as ethylene glycol monomethyl ether and propylene glycol monomethyl ether; acetone alcohols such as diacetone alcohol; Aromatic compounds such as benzene, toluene and xylene; ester compounds such as propylene glycol monomethyl ether acetate, ethyl acetate and butyl acetate; ketone compounds such as acetone, methyl ethyl ketone and methyl isobutyl ketone; ether compounds such as dibutyl ether; and N-methyl Examples include pyrrolidone and the like.
Among these, an alkylene glycol monoether compound and a low molecular weight alcohol compound are preferable.

The component (A), which is an essential component of the composition of the present invention, dissolves water to some extent when the proportion of hydroxyl groups in one molecule is large. For this reason, water can be mix | blended with the composition of this invention as (F) component.
Water has a very high viscosity dilution efficiency and is safe. For this reason, it can be set as a solvent-free, low-viscosity, low-odor, quick-hardening composition by using water.

A preferable content ratio of the component (F) varies depending on the use of the composition of the present invention, but is preferably 0 to 1,000 parts by weight with respect to 100 parts by weight of the total amount of the curable components. More preferably, it is ˜500 parts by weight, and further preferably 0 to 300 parts by weight.

2-6. (G) Component The composition of the present invention may contain colloidal inorganic particles as the (G) component. Examples of inorganic particles include metal oxides such as silica, alumina, titania, zinc oxide, tin oxide and indium oxide, metals such as gold, silver, platinum and palladium, metal chalcogenide compounds such as zinc sulfide and zinc selenide. It is done.
Of these, colorless metal oxides are preferred for applications where scratch resistance and colorless transparency are required, such as hard coats. Specifically, silica, titania, zinc oxide, tin oxide, and indium oxide are preferred. Particularly preferred is silica. At this time, the average particle diameter is a particle diameter determined from a specific surface area measurement by the BET method, preferably 1 to 200 nm, more preferably 5 to 150 nm, and still more preferably 10 to 100 nm.

As the component (G), there are colloidal inorganic particles (hereinafter referred to as “component (G-1)”) having radically polymerizable unsaturated groups and photoreactive groups bonded to the surface, radically polymerizable unsaturated groups and light. And colloidal inorganic particles having no reactive group (hereinafter referred to as “component (G-2)”).
As the component (G), the component (G-1) is preferably used when importance is attached to the scratch resistance, and when the curling suppression when coating on a thin substrate such as a film is important ( It is preferable to use the component G-2).
Specific examples of the component (G-1) include a reaction product of (meth) acryloyloxypropyltrimethoxysilane and colloidal silica.

When the component (G-1) is blended, the content of the component (G-1) is preferably 0 to 60 parts by weight and preferably 0 to 30 parts by weight with respect to 100 parts by weight of the curable component. Is more preferable. On the other hand, when the component (G-2) is blended, the blending amount of the component (G-2) is preferably 0 to 100 parts by weight with respect to 100 parts by weight of the curable component, and 0 to 50 parts by weight. More preferably.
The component (G-1) is included in the curable component, and the component (G-2) is not included in the curable component.

2-7. (H) Component In the composition of the present invention, a polymer may be blended as the (H) component. When a polymer is blended as the component (H), curling when the substrate thickness is thin can be improved, and adhesion to plastics and metals can be improved.
Suitable polymers include (meth) acrylic polymers, and suitable constituent monomers include methyl (meth) acrylate, cyclohexyl (meth) acrylate, (meth) acrylic acid, glycidyl (meth) acrylate, N- ( 2- (meth) acryloxyethyl) tetrahydrophthalimide and the like. In the case of a polymer copolymerized with (meth) acrylic acid, glycidyl (meth) acrylate may be added to introduce a (meth) acryloyl group into the polymer chain.
In addition to (meth) acrylic polymers, various polymers such as polyester, polyurethane, polycarbonate, polyvinyl pyrrolidone, polyvinyl acetate, vinyl pyrrolidone and vinyl acetate copolymer, polyvinyl alcohol, cellulose alkylate, diallyl phthalate resin are blended. can do.

As the component (H), a polymer having a radically polymerizable unsaturated group or photoreactive group bonded thereto (hereinafter referred to as “(H-1) component”) and a radically polymerizable unsaturated group or photoreactive group are included. Polymer [hereinafter referred to as “component (H-2)”].
As the component (H), when the composition of the present invention is used as a hard coat, the component (H-1) is preferable.

When the component (H-1) is blended, the content ratio of the component (H-1) is preferably 0 to 60 parts by weight, and 0 to 30 parts by weight with respect to 100 parts by weight of the curable component. Is more preferable. On the other hand, when the component (H-2) is blended, the blending amount of the component (H-2) is preferably 0 to 50 parts by weight, and 0 to 25 parts by weight with respect to 100 parts by weight of the curable component. More preferably.
The component (H-1) is included in the curable component, and the component (H-2) is not included in the curable component.

2-8. (I) Component In the composition of this invention, you may mix | blend a reactive surfactant as (I) component. When a reactive surfactant is added as the component (I), durability can be imparted to the antifogging property of the cured film.
As reactive surfactants, reactive surfactants having propenyl groups (I-1) (hereinafter referred to as “component (I-1)”), reactive surfactants having (meth) allyl groups (I- 2) [hereinafter referred to as “component (I-2)”] and the like.

Specific examples of the component (I-1) include compounds represented by the following formula (5).

However, in the formula (5), R ¹⁴ , R ¹⁵ , R ¹⁶ , A ¹ , a, and X ¹ are as shown below.
R ¹⁴ is a group selected from the group consisting of an alkyl group, an alkenyl group, an alkylaryl group and an aralkylaryl group having 6 to 30 carbon atoms. R ¹⁵ is an alkyl group having a hydrogen atom and 6 to 30 carbon atoms. , An alkenyl group, an alkylaryl group, and a group selected from the group consisting of an aralkylaryl group, R ¹⁶ : a hydrogen atom or a propenyl group, a: an integer of 0 to 100, A ¹ : an alkylene group having 2 to 4 carbon atoms, X ¹ : hydrogen atom or sulfate [-SO ₃ L, L includes alkali metal, NH ₄ and alkanolamine residues, etc.]

In R ¹⁴ , as the alkyl group, for example, hexyl group, heptyl group, octyl group, nonyl group, decyl group, undecyl group, dodecyl group, tridecyl group, tetradecyl group, pentadecyl group, hexadecyl group, heptadecyl group, octadecyl group, Nonadecyl group, eicosyl group, etc. are mentioned.
Examples of the alkenyl group include hexenyl group, heptenyl group, octenyl group, nonenyl group, decenyl group, undecenyl group, dodecenyl group, tridecenyl group, tetradecenyl group, pentadecenyl group, hexadecenyl group, heptadecenyl group and octadecenyl group.
Alkylaryl groups include monobutylphenyl, dibutylphenyl, sec-butylphenyl, disec-butylphenyl, tert-butylphenyl, octylphenyl, nonylphenyl, dinonylphenyl, dodecylphenyl And a didecylphenyl group.
Examples of the aralkylaryl group include a styrenated phenyl group, a benzylphenyl group, and a cumylphenyl group, and may be a di- or tri-form of an aralkyl group, and further may be substituted with an alkyl group.

Specific examples of the alkyl group, alkenyl group, and alkylaryl group aralkylaryl group having 6 to 30 carbon atoms in R ¹⁵ include the same groups as those described for R ¹⁴ .

The preferable range of a is 1 to 50, more preferably 1 to 20.

The alkylene group having 2 to 4 carbon atoms of A ¹ is specifically an ethylene group, a propylene group, a butylene group, an isobutylene group, or the like, in which different alkylene groups are bonded in blocks or randomly in one molecule. But you can. A ¹ is preferably an ethylene group.

X ¹ is preferably a hydrogen atom because the cured film has excellent anti-fogging durability.

In the formula (5), the propenyl group includes trans and cis stereoisomers, and in the present invention, any of the isomers can be used alone or as a mixture.

A preferable example of the compound represented by the formula (5) is a compound represented by the following formula (6).

The compound represented by the formula (6) is a compound in which R ¹⁴ is a nonyl group, R ¹⁵ , R ¹⁶ and X ¹ are hydrogen atoms and A ¹ is an ethylene group in the formula (5). Examples include Aqualon RN-20, Aqualon RN-2025, Aqualon RN-30, Aqualon RN-50, Aqualon HS-5, Aqualon HS-10 and the like manufactured by Daiichi Kogyo Seiyaku.

Specific examples of the component (I-2) include compounds represented by the following formula (7).

However, in the formula (7), R ¹⁷ , R ¹⁸ , b, c, A ² , A ³ and X ² are as shown below.
R ¹⁷ is a group having 6 to 30 carbon atoms, selected from the group consisting of an alkyl group, an alkenyl group, an alkylaryl group, an aralkylaryl group and an alkylphenyl group. R ^{18 is a} hydrogen atom or a methyl group. B: 0 C is an integer of 0 to 100 c is an integer of 0 to 100 A ^{2 is} an alkylene group having 2 to 4 carbon atoms A ^{3 is} an alkylene group having 2 to 4 carbon atoms X ^{2 is a} hydrogen atom or sulfate [—SO ₃ L , L includes alkali metal, NH ₄ and alkanolamine residues, etc.]

Specific examples of the alkyl group, alkenyl group, alkylaryl group and aralkylphenyl group having 6 to 30 carbon atoms in R ¹⁷ include the same groups as those described above for R ¹⁴ in formula (5). . In R ¹⁷ , examples of the alkylphenyl group include a phenyl group having the same alkyl group as that described for R ¹⁴ in the formula (5) as the alkyl group.

B and c are preferably in the range of 1 to 50, more preferably 1 to 20, respectively.

Specific examples of A ² and A ³ are the same as those described for A ¹ in Formula (5).
As A ² and A ³ , an ethylene group is preferable.

X ² is preferably a hydrogen atom because the cured film is excellent in anti-fogging durability.

As a preferred example of the compound represented by the formula (7), there is a compound represented by the following formula (8).

The compound represented by the formula (8) is a compound in which R ¹⁷ is a nonylphenyl group, R ¹⁸ is a hydrogen atom and b is 0 in the formula (7). For example, Adeka soap NE manufactured by ADEKA Corporation -5, ADEKA rear soap NE-10, ADEKA rear soap NE-40P, ADEKA rear soap SE-10 and the like.

When the component (I) is blended, the content of the component (I) is preferably 0.1 to 40 parts by weight and more preferably 1 to 30 parts by weight with respect to 100 parts by weight of the curable component. preferable. When the component (I) is 0.1 part by weight or more, the cured film has excellent antifogging durability, and when it is 30 parts by weight or less, the cured coating film has excellent hardness.

2-9. Various additives In addition to the above-described components, various additives may be blended in the composition of the present invention depending on the purpose. Various additives include surface modifiers, antioxidants, ultraviolet absorbers, light stabilizers, silane coupling agents, particles, polymerization inhibitors, conductivity imparting agents, pigment dispersants, antifoaming agents, antibacterial agents, Examples include photoacid generators, photobase generators, thermal radical polymerization initiators and the like. Some of these will be briefly explained below.

2-9-1. Surface modifier A surface modifier may be added to the composition of the present invention for the purpose of increasing the leveling property at the time of coating, the purpose of increasing the slipping property of the cured film and improving the scratch resistance, and the like. .
Examples of the surface modifier include a surface modifier, a surfactant, a leveling agent, an antifoaming agent, a slipperiness imparting agent, and an antifouling imparting agent, and these known surface modifiers can be used. .
Of these, silicone-based surface modifiers and fluorine-based surface modifiers are preferred. Specific examples include silicone polymers and oligomers having a silicone chain and a polyalkylene oxide chain, silicone polymers and oligomers having a silicone chain and a polyester chain, and fluorine polymers having a perfluoroalkyl group and a polyalkylene oxide chain. And a fluorine-based polymer and an oligomer having a perfluoroalkyl ether chain and a polyalkylene oxide chain.
Further, for the purpose of increasing the slidability, a surface modifier having an ethylenically unsaturated group, preferably a (meth) acryloyl group, in the molecule may be used.
The content of the surface modifier is preferably 0.01 to 1.0 part by weight with respect to 100 parts by weight of the total amount of curable components. It is excellent in the surface smoothness of a cured film as it is the said range.

2-9-2. Antioxidant Antioxidant is mix | blended in order to improve durability, such as the heat resistance of a cured film, and a weather resistance.
Examples of the antioxidant include phenol-based antioxidants, phosphorus-based antioxidants, and sulfur-based antioxidants.
Examples of phenolic antioxidants include hindered phenols such as di-t-butylhydroxytoluene. Examples of commercially available products include AO-20, AO-30, AO-40, AO-50, AO-60, AO-70, and AO-80 manufactured by Adeka Corporation.
Examples of the phosphorus-based antioxidant include phosphines such as trialkylphosphine and triarylphosphine, and trialkyl phosphites and triaryl phosphites. Examples of commercially available products of these derivatives include Adeka Co., Ltd., ADK STAB PEP-4C, PEP-8, PEP-24G, PEP-36, HP-10, 260, 522A, 329K, 1178, 1500, 135A, 3010. Etc.
Examples of the sulfur-based antioxidant include thioether compounds, and examples of commercially available products include AO-23, AO-412S, and AO-503A manufactured by Adeka Corporation.
These may be used alone or in combination of two or more. Preferred combinations of these antioxidants include the combined use of phenolic antioxidants and phosphorus antioxidants, and the combined use of phenolic antioxidants and sulfurous antioxidants.
The content ratio of the antioxidant may be appropriately set according to the purpose, and is preferably 0.01 to 5 parts by weight, more preferably 0.1 to 1 part by weight with respect to 100 parts by weight of the total amount of the curable components. It is. When the content ratio is 0.1 parts by weight or more, the durability of the composition can be improved. On the other hand, when the content ratio is 5 parts by weight or less, curability and adhesion can be improved.

2-9-3. UV absorbers UV absorbers can be blended for the purpose of improving the light resistance of the cured film.
Examples of the ultraviolet absorber include triazine ultraviolet absorbers such as TINUVIN400, TINUVIN405, TINUVIN460, and TINUVIN479 manufactured by BASF, and benzotriazole ultraviolet absorbers such as TINUVIN900, TINUVIN928, and TINUVIN1130.
The content ratio of the ultraviolet absorber may be appropriately set according to the purpose, and is preferably 0.01 to 5 parts by weight, more preferably 0.1 to 1 part by weight with respect to 100 parts by weight of the total amount of the curable components. It is. When the content ratio is 0.01% by weight or more, the light resistance of the cured film can be improved, and when it is 5% by weight or less, the curability of the composition is excellent. be able to.

2-9-4. Light stabilizer A light stabilizer can be mix | blended in order to improve the light resistance of a cured film.
As the light stabilizer, a hindered amine light stabilizer (so-called HALS) is preferable. Examples of HALS include TINUVIN123, TINUVIN144, TINUVIN111FDL, TINUVIN152, TINUVIN292, and TINUVIN5100 manufactured by BASF.

2-9-5. Silane coupling agent not belonging to component (D-3) The silane coupling agent can be blended for the purpose of improving the interfacial adhesive strength between the cured film and the substrate. The silane coupling agent is not particularly limited as long as it can contribute to improvement in adhesion to the substrate.
The silane coupling agent mentioned here is a compound having no radically polymerizable unsaturated group, and is a compound different from the component (D-3). Adhesion may be improved without having a radically polymerizable unsaturated group.
Specific examples of the silane coupling agent different from the component (D-3) include 2- (3,4-epoxycyclohexyl) ethyltrimethoxysilane, 3-glycidoxypropyltrimethoxysilane, and 3-glycidide. Xylpropylmethyldiethoxysilane, 3-glycidoxypropyltriethoxysilane, N-2- (aminoethyl) -3-aminopropylmethyldimethoxysilane, N-2- (aminoethyl) -3-aminopropyltrimethoxysilane N-2- (aminoethyl) -3-aminopropyltriethoxysilane, 3-aminopropyltrimethoxysilane, 3-aminopropyltriethoxysilane, 3-triethoxysilyl-N- (1,3-dimethyl-butylidene ) Propylamine, N-phenyl-3-aminopropyltrimethoxysilane, 3-mercapto Examples thereof include propylmethyldimethoxysilane and 3-mercaptopropyltrimethoxysilane.
The mixing ratio of the silane coupling agent may be appropriately set according to the purpose, and is preferably 0.1 to 10 parts by weight, more preferably 1 to 5 parts by weight with respect to 100 parts by weight of the total amount of the curable components. . When the blending ratio is 0.1 parts by weight or more, the adhesive strength of the composition can be improved. On the other hand, when the blending ratio is 10 parts by weight or less, it is possible to prevent the adhesive force from changing over time.

2-9-6. Particles not belonging to component (G) For the purpose of providing the composition of the present invention with antiglare properties to the cured film or providing slipperiness when the substrates with the cured film are overlaid. Particles other than the component (G) may be blended. The particle diameter of the fine particles varies depending on the application, but generally 0.2 to 100 μm can be preferably used.
The fine particles may be inorganic or organic. Examples of the inorganic fine particles include metal oxides such as silica, alumina, and titania that are not colloidal. Examples of the organic material include particles in which a polymer of a monomer such as alkyl (meth) acrylate or styrene is crosslinked.

2-9-7. Polymerization inhibitor In addition to the polymerization inhibitor contained in the component (A), a polymerization inhibitor can be further added to the composition of the present invention. As the polymerization inhibitor, the same compounds as those added in the synthesis of the component (A) are suitable.

2-9-8. Conductivity-imparting agent A conductivity-imparting agent such as an antistatic agent can be added to the composition of the present invention.
Examples of the antistatic agent include nonionic surfactants such as glycerin fatty acid ester, polyoxyalkylene alkyl ether and alkyldiethanolamine;
Anionic surfactants such as alkyl sulfonates, alkyl benzene sulfonates, and alkyl phosphates;
Cationic surfactants such as tetraalkylammonium salts and trialkylbenzylammonium salts;
Amphoteric surfactants such as alkylbetaines and alkylimidazolium betaines;
Polymer type antistatic agents such as polyether esters, polyether ester amides, polystyrene sulfonates, (meth) acrylate polymers containing four-ball ammonium salts, polyether polyethers;
Monomers having acidic groups such as phosphoric acid (meth) acrylate;
Metal salts of bis (fluoroalkylsulfonyl) imide such as bis (trifluoromethanesulfonyl) imide lithium;
Alkali metal salts of tris (fluoroalkylsulfonyl) methides such as tris (trifluoromethanesulfonyl) methide lithium;
An alkali metal salt of a trifluoromethanesulfonate ion such as lithium trifluoromethanesulfonate; and
Examples thereof include ionic liquids such as imidazolium ionic liquid and pyridinium ionic liquid.
Imidolithium salts and ionic liquids have the effect of reducing volume resistivity as well as surface resistance.

2-10. Urethane (meth) acrylate The present invention relates to a curable composition containing the component (A). After the component (A) is reacted with an organic polyvalent isocyanate to form a urethane (meth) acrylate, The effects of the present invention can also be expressed as a curable composition by blending with the components B) to (I) and the various additives described above. In particular, a cured product having excellent bending resistance can be obtained.

2-10-1. The organic polyvalent isocyanate compound to be reacted with the organic polyvalent isocyanate (A) component is preferably a divalent isocyanate compound, and is preferably an aliphatic polyvalent isocyanate compound.
Specific examples of preferable organic polyvalent isocyanate compounds include aliphatic divalent isocyanates such as isophorone diisocyanate, hexamethylene diisocyanate, 4,4′-dicyclohexylmethane diisocyanate and norbornane diisocyanate, and 2,4-tolylene diisocyanate and naphthalene. Examples thereof include aromatic divalent isocyanates such as diisocyanate, xylene diisocyanate and diphenylmethane diisocyanate, and nurate type trimers of these compounds. These may be used individually by 1 type, or may use 2 or more types together, but it is preferable to use individually by 1 type.

2-10-2. Production Method of Urethane (Meth) acrylate Urethane (meth) acrylate is produced by reacting the hydroxyl group in component (A) with the isocyanate group in the organic polyvalent isocyanate compound to form a urethane bond.
There is no restriction | limiting in particular as a manufacturing method of urethane (meth) acrylate, A well-known method can be used.
For example, the component (A) and the organic polyvalent isocyanate compound may be heated and stirred.

The reaction ratio (molar ratio) between the hydroxyl group in component (A) and the isocyanate group of the organic polyvalent isocyanate compound is preferably hydroxyl group: isocyanate group = 1: 0.6 to 1: 1.3. : Isocyanate group = 1: 0.8 to 1: 1.2, more preferably hydroxyl group: isocyanate group = 1: 0.9 to 1: 1. The hardness of the obtained cured film is more excellent as it is the said aspect.

The reaction between the hydroxyl group and the isocyanate group in the production of urethane (meth) acrylate can be performed without a catalyst, but a catalyst may be added in order to advance the reaction efficiently.
Examples of catalysts include organotin compounds such as dibutyltin dilaurate; acetylacetonate metal complexes such as iron acetylacetonate, zinc acetylacetonate and ruthenium acetylacetonate; weak metal organic acid salts such as lead naphthenate and potassium acetate; and , Triethylamine, triethanolamine, dimethylbenzylamine, trioctylamine, 1,4-diazabicyclo [2.2.2] octane, 1,8-diazabicyclo [5.4.0] undecene-7, 1,5-diazabicyclo [4.3.0] tertiary amine compounds such as nonene-5; and trialkylphosphine compounds such as triethylphosphine.
The ratio of the catalyst may be appropriately set according to the organic polyvalent isocyanate compound used, the catalyst, etc., but is preferably 0.01 to 1,000 wtppm, more preferably 0.1 to 1 with respect to the reaction solution. , 000 wtppm.

The reaction temperature may be appropriately set according to the type and ratio of the organic polyisocyanate compound to be used and the catalyst, and is preferably 60 ° C to 130 ° C, more preferably 70 ° C to 90 ° C.

Moreover, a chain extender can also be mix | blended a small quantity for the purpose of adjusting the molecular weight of the urethane (meth) acrylate obtained by reaction of (A) component and an organic polyvalent isocyanate compound.
As the chain extender, those usually used in a urethanization reaction can be used.
Specific examples of the chain extender include low molecular weight polyols, polyether polyols, polycarbonate polyols and polyester polyols.
Examples of the low molecular weight polyol include ethylene glycol, polyethylene glycol, cyclohexanedimethanol, 3-methyl-1,5-pentanediol, propylene glycol, polypropylene glycol, 1,6-hexanediol, trimethylolpropane glycerin, diglycerin and the like. And polyols such as these alkylene oxide adducts.
Examples of the polyether polyol include polyalkylene glycol having 3 or more oxyalkylene units, and specific examples thereof include polyethylene glycol, polypropylene glycol, and polytetramethylene glycol.
Examples of the polycarbonate polyol include a reaction product of carbonate and diol. Specific examples of the carbonate include diaryl carbonates such as diphenyl carbonate, and dialkyl carbonates such as dimethyl carbonate and diethyl carbonate. Examples of the diol include the low molecular weight polyol described above.
Examples of the polyester polyol include a reaction product of an acid component with at least one selected from the group consisting of the low molecular weight polyol, the polyether polyol, and the polycarbonate polyol. Examples of the acid component include dibasic acids such as adipic acid, sebacic acid, succinic acid, maleic acid, phthalic acid, hexahydrophthalic acid and terephthalic acid, or anhydrides thereof. Moreover, the ring-opening reaction product of polycarbonate diol and caprolactone is also mentioned.
The proportion of the chain extender used is preferably 20 parts by weight or less, more preferably 10 parts by weight or less, with respect to 100 parts by weight of the urethane (meth) acrylate finally obtained.

Further, when the isocyanate group remains, the component (A) does not have an isocyanate group or a small amount of the isocyanate group is preferable from the viewpoint of hardness and stability. A compound having two or more (meth) acryloyl groups (hereinafter also referred to as “hydroxyl group-containing polyfunctional (meth) acrylate”) may be added.

As the hydroxyl group-containing polyfunctional (meth) acrylate, various compounds can be used, which are (meth) acrylates derived from a trihydric or higher polyhydric alcohol, having two or more (meth) acryloyl groups, It is preferable that it is (meth) acrylate which has 1 or more.
Specific examples of the hydroxyl group-containing polyfunctional (meth) acrylate include trimethylolpropane di (meth) acrylate, di (meth) acrylate of trimethylolpropane alkylene oxide adduct, and di (meth) acrylate of alkylene oxide adduct of glycerin. Di- or tri (meth) acrylate of pentaerythritol, di- or tri (meth) acrylate of alkylene oxide adduct of pentaerythritol, di- or tri (meth) acrylate of ditrimethylolpropane, dialkylene adduct of ditrimethylolpropane Or tri (meth) acrylate, diglycerin alkylene oxide adduct di (meth) acrylate, dipentaerythritol di, tri, tetra or penta (meth) acrylate, dipenta Di, tri, tetra or penta (meth) acrylates of alkylene oxide adducts of lithitol and di (meth) acrylates of alkylene oxide adducts of isocyanurates, di, tri, tetra, penta, hexa or hepta (tripentaerythritol) Examples thereof include di (meth) acrylate, dipentaerythritol alkylene oxide adduct di, tri, tetra, penta, hexa or hepta (meth) acrylate, and isocyanurate alkylene oxide adduct di (meth) acrylate.
In this case, examples of the alkylene oxide include ethylene oxide and propylene oxide.
Among them, trimethylolpropane di (meth) acrylate, di or tri (meth) acrylate of pentaerythritol, di or tri (meth) acrylate of ditrimethylolpropane and di, tri, tetra or penta (meth) acrylate of dipentaerythritol Preferably mentioned.

3. Method of Use As a method of using the composition of the present invention, a conventional method may be followed.
For example, after apply | coating a composition to a base material, the method of making it harden | cure by irradiating an active energy ray or heating, etc. are mentioned.
Specifically, after applying or printing the composition on the substrate to be applied by a usual coating method, in the case of an active energy ray-curable composition, the active energy ray is irradiated and cured, or In the case of a thermosetting composition, a method of heating and curing can be used. In the case of applications such as molding materials, the composition is injected into a predetermined mold and then cured in the case of an active energy ray curable composition by irradiation with active energy rays, or a thermosetting composition. In the case of a thing, the method of heating and hardening etc. is mentioned.
A general method known as a conventional curing method may be adopted as the active energy ray irradiation method and heating method.
In addition, the component (B) (photopolymerization initiator) and the component (C) (thermal polymerization initiator) are used in combination with the composition, irradiated with active energy rays, and then heat-cured, thereby adhering to the substrate. A method for improving the property can also be adopted.

Examples of the substrate include paper, plastic film, plastic plate, wood, metal, inorganic materials other than metal, nails, bones, leather, and the like.
In particular, since the composition of the present invention is excellent in the bending resistance of the cured product, it can be preferably applied to a thin substrate such as paper or plastic film.

Specific examples of plastics include cellulose acetate resins such as triacetyl cellulose and diacetyl cellulose, cyclic polyolefin resins having cyclic olefins such as polyvinyl alcohol, acrylic resins, polyethylene terephthalate, polycarbonate, polyarylate, polyethersulfone, norbornene as monomers. , Polyvinyl chloride, epoxy resin, polyurethane resin and the like.
Examples of the wood include natural wood and synthetic wood.
Examples of the inorganic material include metals such as steel plates, stainless steel, aluminum, gold, silver, copper, and chromium, and metal oxides such as zinc oxide (ZnO), tin oxide, aluminum oxide, and indium tin oxide (ITO). It is done.
Examples of other inorganic materials include glass, mortar, concrete and stone.
As a nail | claw, a bone | frame, and leather, the thing of the animal used for an ornament etc., and the coating agent to a human nail | claw may be sufficient.

What is necessary is just to set suitably the film thickness of the cured film of the composition with respect to a base material according to the objectives, such as a use of the base material to be used or the manufactured cured film.
The film thickness of the cured film of the composition is preferably 0.5 to 100 μm, more preferably 1 to 20 μm.

As a method for coating the substrate of the composition of the present invention, it may be appropriately set according to the purpose, and brush, brush, bar coater, applicator, doctor blade, dip coater, roll coater, spin coater, flow coater, Examples of the method include coating or printing using a knife coater, comma coater, reverse roll coater, die coater, lip coater, gravure coater, micro gravure coater, and inkjet.

When the composition of the present invention contains an organic solvent or water as the component (F), it is preferably dried after coating. In the case of a production line, it is preferable to provide a hot air dryer. It is preferable to install a local exhaust device in the hot air dryer.
However, when only water is included as the component (F), the drying step is not necessarily required. When the water content is low, a cured film that is transparent and has no problem in performance may be formed even if it is cured while containing water. In addition, even when the water content is high (for example, when it contains 50% or more of the whole), when the film thickness is as thin as about 2 μm, most of the water volatilizes even at room temperature, and a cured film that is transparent and has no performance problems can be formed. There is a case.

Examples of the active energy ray for curing the composition of the present invention include ultraviolet rays, visible rays, and electron beams, and ultraviolet rays are preferred.
Examples of the light source in the ultraviolet irradiation include a high pressure mercury lamp, a metal halide lamp, an ultraviolet (UV) electrodeless lamp, a UV-LED (ultraviolet light emitting diode), and sunlight.
The amount of irradiation energy may be set as appropriate depending on the light source, application, and the type and amount of component (B). 000 mJ / cm ² is preferable, and 200 to 1,000 mJ / cm ² is more preferable.

4). Use The curable composition of the present invention is preferably used as an active energy ray curable composition, and exhibits the effects of the above-described fast curability, hardness of the cured product, and antifogging properties, and uses the effect. It can be used for various purposes.
Examples of preferred applications include coating agents such as clear coating agents and paints, inks such as offset inks and inkjet inks, adhesives, shaping resins, resin films, resists, pattern forming compositions, and molding materials. .

Hereinafter, the present invention will be described in more detail with reference to Examples and Comparative Examples.
In the following, “parts” means parts by weight.

1. Production example
1-1) Production Example 1 [Production of component (A), hydroxyl value: 238 mgKOH / g]
Into a 3 liter flask equipped with a stirrer, thermometer, gas introduction tube, rectifying column and cooling tube, glycerin [refined glycerin (trade name) manufactured by Sakamoto Pharmaceutical Co., Ltd., peroxide concentration 0.95 wtppm] 302.75 g (3.29 mol), 2312.84 g (17.77 mol) of 2-methoxyethyl acrylate, 6.51 g (0.06 mol) of DABCO as catalyst X, and 24. zinc acrylate as catalyst Y 07 g (0.12 mol), hydroquinone monomethyl ether (hereinafter referred to as “MEHQ”) 1.19 g (0.01 mol), phenothiazine 0.21 g (0.002 mol) were charged, and oxygen-containing gas (oxygen 5 Volume%, nitrogen 95 volume%) was bubbled into the liquid.
While stirring the reaction solution at a temperature of 100 ° C. to 130 ° C., the pressure in the reaction system is adjusted in the range of 110 to 760 mmHg, and 2-methoxyethanol and 2-methoxyethyl by-produced as the transesterification proceeds. The mixed liquid of acrylate was extracted from the reaction system through a rectification column and a cooling pipe. Further, 2-methoxyethyl acrylate having the same weight as the extracted liquid was added to the reaction system as needed. 18 hours after the start of heating and stirring, the pressure in the reaction system was returned to normal pressure, and the extraction was completed.
As a result of obtaining the acrylate conversion ratio of the hydroxyl group of glycerin from the amount of 2-methoxyethanol produced, it was 58 mol%.
After cooling the reaction solution to room temperature and separating the precipitate by filtration, aluminum silicate [KYOWARD 700 (trade name) manufactured by Kyowa Chemical Industry Co., Ltd.] is used to adsorb and remove the catalyst X and catalyst Y contained in the filtrate. Was added and stirred, and the mixture was further stirred with heating in the range of 70 to 100 ° C. for 1 hour. After the aluminum silicate after the adsorption treatment is separated by filtration, the filtrate is put into a flask connected with a stirrer, a thermometer, a gas introduction pipe, a distillation cooling pipe, and a decompression pipe, and the temperature is 70 to 100 ° C. Distillation under reduced pressure for 10 hours while bubbling dry air was performed at a pressure in the range of 0.001 to 100 mmHg to separate a distillate containing unreacted 2-methoxyethyl acrylate. 5.0 g of diatomaceous earth [Radiolite (trade name) manufactured by Showa Chemical Industry Co., Ltd.] was added to the kettle and subjected to pressure filtration, and the resulting filtrate was used as component (A). The yield of component (A) was 651 g.
When 302.75 g of the charged glycerin is all converted to glycerin diacrylate (hereinafter referred to as “GLY-DAA”), the yield is 658 g. The yield of the component (A) calculated based on this is 99. %Met.
Using a HPLC equipped with a UV detector, the purity of GLY-DAA contained in the component (A) was calculated from the above formula (1) and found to be 62%.
The obtained component (A) had a viscosity: 43 mPa · s (25 ° C.) and a hydroxyl value: 238 mgKOH / g. Mw by GPC measurement: 314.
The content of by-product contained in component (A) was determined by gas chromatography (hereinafter referred to as “GC”), and the hydroxyl group of 2-methoxyethanol was added to the acryloyl group of 2-methoxyethyl acrylate by Michael. 0.28% by weight of the obtained compound, 0.33% by weight of the compound obtained by Michael addition of the acrylic acid hydroxyl group to the acryloyl group of 2-methoxyethyl acrylate, and the compound obtained by dimerizing 2-methoxyethyl acrylate by the Rauhut-Currier reaction It contained 0.54% by weight.

Note that HPLC, peroxide concentration, viscosity, hydroxyl value, GPC and GC were measured under the following conditions.
◆ HPLC measurement conditions and equipment: ACQUITY UPLC manufactured by Waters Co., Ltd.
・ Detector: UV detector ・ Detection wavelength: 210 nm
Column: Waters Co., Ltd. ACQUITY UPLC BEH C18 (Part No. 186002350, column inner diameter 2.1 mm, column length 50 mm)
Column temperature: 40 ° C
-Composition of eluent: 0.03% by weight trifluoroacetic acid aqueous solution and methanol mixed solution-Eluent flow rate: 0.3 mL / min

◆ Peroxide concentration measurement conditions Isopropyl alcohol, glacial acetic acid and an aqueous potassium iodide solution were added to glycerin of the sample, and heated in an 85 ° C. hot bath for 3 minutes to generate iodine. Thereafter, the treatment liquid was taken out from the warm bath, and iodine was titrated with sodium thiosulfate before the temperature of the treatment liquid became 40 ° C. or lower. The active oxygen content concentration was calculated from the titration amount and used as the peroxide concentration.

◆ Viscosity measurement conditions Using an E-type viscometer, the viscosity at 25 ° C was measured.

◆ Hydroxyl value measurement conditions Add an acetylating reagent to the sample and heat-treat in a warm bath at 92 ° C for 1 hour. After standing to cool, a small amount of water is added and heat-treated in a warm bath at 92 ° C. for 10 minutes. After allowing to cool, the hydroxyl value was determined by titrating the acid with a potassium hydroxide ethanol solution using a phenolphthalein solution as an indicator.

◆ GPC measurement conditions and equipment: GPC system name manufactured by Waters Co., Ltd. 1515 2414 717P RI
-Detector: Differential refractive index (RI) detector-Column: Guard column Shodex KFG (8 μm 4.6 × 10 mm) manufactured by Showa Denko K.K., two types of this column Watergel HR 4E THF (7. 8 x 300 mm) + styragel HR 1THF (7.8 x 300 mm)
Column temperature: 40 ° C
Eluent composition: Tetrahydrofuran (THF, containing 0.03% sulfur as internal standard), flow rate 0.75 mL / min Calibration curve: Standard polystyrene was used to create a calibration curve.
-Among detection peaks derived from component (A), detection peaks derived from monofunctional (meth) acrylates, solvents, and detection peaks with a retention time later than those derived from water are not considered in the calculation of Mw. Mw was calculated by regarding a plurality of other detection peaks as one peak.

◆ GC measurement conditions and equipment: GC-17A manufactured by Shimadzu Corporation
Detector: FID detector Carrier gas: Helium Column: Inert Cap (film thickness 0.5 μm, 0.32 mm ID × 60 m)
・ Injection temperature: 200 ℃
・ FID temperature: 250 ℃
Column temperature: held at 120 ° C. for 5 minutes, then heated to 240 ° C. at a rate of 10 ° C./min and then held for 25 minutes.
・ Injection volume: 0.2 μL
-The content of by-products was determined in wt% by the internal standard method.

1-2) Production Examples 2 to 4 [Production of component (A), hydroxyl value: 134 to 345 mgKOH / g]
The component (A) was produced in the same manner as in Production Example 1 while changing the reaction time and the acrylate hydroxylation rate of glycerin. The results are shown in Table 1.

1-3) Comparative Production Example 1 [Production of GLY-DAA by dehydration ester reaction]
This Comparative Production Example 1 was carried out with reference to Example 1 described in Patent Document 2 (Japanese Patent Laid-Open No. 2006-257044).
In a flask equipped with a stirrer, a thermometer, a gas introduction tube, and a cooling tube, 278.41 g (3.02 mol) of glycerin, 436.20 g (6.05 mol) of acrylic acid, and 3% of a 78% by weight sulfuric acid aqueous solution. .86 g, MEHQ 0.27 g (0.002 mol) was charged, and oxygen-containing gas (5% by volume of oxygen and 95% by volume of nitrogen) was bubbled into the liquid while the reaction liquid temperature ranged from 79 to 81 ° C. Stir for hours.
After cooling the reaction solution to room temperature, 1415 g of toluene and 704 g of 20% aqueous sodium hydroxide solution were added and stirred. The pH of the lower layer (aqueous layer) after the stirring was stopped and the stationary separation was 6.
After discharging the lower layer (aqueous layer), 0.02 g of MEHQ was added to the upper layer (organic layer), and vacuum distillation was performed at a temperature of 60 to 80 ° C. and a pressure of 0.001 to 100 mmHg for 6 hours while bubbling dry air. The low boiling point components such as toluene and water were separated.
The weight of the pot liquid after completion of the vacuum distillation was 40.7 g. When 278.41 g of the charged glycerin was all converted to GLY-DAA, the yield was 605 g, and the yield of the above pot liquid calculated based on this was 7%.
Further, the purity of GLY-DAA contained in the above pot liquid calculated by the same method as in Example 1 was 88%, the viscosity was 60 mPa · s (25 ° C.), the hydroxyl value was 253 mgKOH / g, and Mw was 332. .
As described above, when GLY-DAA is produced by the conventional dehydration esterification reaction, the yield is very low, and industrial implementation is difficult from the viewpoint of cost and productivity.

2. Examples 1 to 4 and Comparative Example 1 (a photocurable composition having excellent antifogging properties)
2-1) Production of composition Each component shown in Table 2 was blended in the respective number of parts, and stirred and mixed according to a conventional method to prepare a photocurable composition.
The meanings of the abbreviations of the blending components in the table are as follows except for those defined above.
Component (B) Irg184: 1-hydroxycyclohexyl phenyl ketone [IRGACURE184 (trade name) manufactured by BASF Japan Ltd.]
(D) component M-240: polyethylene glycol diacrylate [Aronix M-240 (n≈4) (trade name) (D-1) component manufactured by Toagosei Co., Ltd.]]
MT-3533: Pentaerythritol tri and tetraacrylate mixture [Aronix MT-3533 (trade name) (D-2) component manufactured by Toagosei Co., Ltd.]
RN-20: Polyoxyethylene nonylpropenyl phenyl ether [Aqualon RN-20 (trade name) (I-1) component manufactured by Daiichi Kogyo Seiyaku Co., Ltd.]

2-2) Evaluation of UV Curability Using the bar coater # 10, the obtained composition was coated on a polycarbonate plate (hereinafter referred to as “PC plate”) so that the film thickness after drying was 10 μm. Using a high-pressure mercury lamp (H06-L 41 manufactured by Eye Graphics Co., Ltd., lamp output 80 W / cm) provided, UV-A illuminance 248 mW / cm ² per pass and irradiation energy 200 mJ / cm ² Ultraviolet irradiation was performed in an air atmosphere.
For each pass, the cured state of the coating film was confirmed with a finger, and when it was not cured, another one-pass ultraviolet irradiation was performed. When cured, the surface of the cured film was rubbed with a non-woven fabric (Bencot manufactured by Asahi Kasei) with a force of about 1 kg / cm ² . Thus, sclerosis | hardenability was evaluated by the frequency | count of a pass until it was not damaged even if it rubs strongly with a nonwoven fabric, and the result was described in Table 2.

2-3) Evaluation of pencil hardness Pencil hardness of the cured film prepared by the method 2-2) was measured under a load of 750 g according to JIS K5600-5-4.

2-4) Evaluation of antifogging property The cured film prepared by the above method 2-2) was exposed to steam at 80 ° C. for 1 minute to evaluate whether the cured film was fogged. Moreover, after the said evaluation, after repeating the said evaluation, after repeating the water | moisture content which wiped the water | moisture content on the cured coating film with paper, the operation which exposes a cured coating film to 80 degreeC vapor | steam for 1 minute was evaluated in total 5 times. . In Table 2, A, B, and C have the following meanings.
A ... not cloudy B ... slightly cloudy C ... cloudy

2-5) Evaluation Results As is apparent from the results in Table 2, the compositions of Examples 1 to 4 of the present invention were fast-curing and excellent in hardness and antifogging properties.
On the other hand, the composition of Comparative Example 1 not containing the component (A) was insufficient in antifogging properties.

The curable composition of the present invention can be used for various applications such as a coating agent, an ink, an adhesive, a shaping resin, a resin film, and a pattern forming composition, preferably as an active energy ray hardening composition. The cured film thus obtained is excellent in hardness and antifogging properties, and can be preferably used as a coating agent composition.

Claims (15)

1. A (meth) acrylate mixture obtained by transesterification of glycerin and a compound having one (meth) acryloyl group in the presence of the following catalysts X and Y, including glycerin di (meth) acrylate, A curable composition comprising a component (A) which is a mixture having a hydroxyl value of 65 mgKOH / g or more.
   Catalyst X: One or more selected from the group consisting of a cyclic tertiary amine having an azabicyclo structure or a salt or complex thereof, amidine or a salt or complex thereof, a compound having a pyridine ring or a salt or complex thereof, and phosphine or a salt or complex thereof Compound.
   Catalyst Y: Compound containing zinc.
2. The curable composition according to claim 1, wherein the compound having one (meth) acryloyl group is an alkoxyalkyl (meth) acrylate.
3. The catalyst X is one or more compounds selected from the group consisting of a cyclic tertiary amine having an azabicyclo structure or a salt or complex thereof, an amidine or a salt or complex thereof, and a compound having a pyridine ring or a salt or complex thereof. Item 3. The curable composition according to item 1 or 2.
4. The curable composition according to any one of claims 1 to 3, wherein the catalyst Y is an organic acid zinc or / and a zinc diketone enolate.
5. The curable composition according to any one of claims 1 to 4, wherein the hydroxyl value of the component (A) is in the range of 65 to 400 mgKOH / g.
6. The curable composition according to any one of claims 1 to 5, further comprising a compound (D) having an ethylenically unsaturated group other than the component (A).
7. An active energy ray-curable composition comprising the composition according to any one of claims 1 to 6.
8. Furthermore, the active energy ray hardening-type composition of Claim 7 containing a photoinitiator (B).
9. The active energy ray-curable composition according to claim 7 or 8, further comprising a reactive surfactant (I).
10. The active energy ray-curable composition according to any one of claims 7 to 9, which is an active energy ray-curable composition for coating.
11. A (meth) acrylate mixture obtained by transesterification of glycerin and a compound having one (meth) acryloyl group in the presence of the following catalysts X and Y, including glycerin di (meth) acrylate, The manufacturing method of a curable composition including the process of manufacturing the (A) component which is a mixture whose hydroxyl value is 65 mgKOH / g or more.
    Catalyst X: One or more selected from the group consisting of a cyclic tertiary amine having an azabicyclo structure or a salt or complex thereof, amidine or a salt or complex thereof, a compound having a pyridine ring or a salt or complex thereof, and phosphine or a salt or complex thereof Compound.
    Catalyst Y: Compound containing zinc.
12. The method for producing a curable composition according to claim 11, wherein the compound having one (meth) acryloyl group is an alkoxyalkyl (meth) acrylate.
13. The catalyst X is one or more compounds selected from the group consisting of a cyclic tertiary amine having an azabicyclo structure or a salt or complex thereof, an amidine or a salt or complex thereof, and a compound having a pyridine ring or a salt or complex thereof. The manufacturing method of the curable composition of claim | item 11 or claim 12.
14. The method for producing a curable composition according to any one of claims 11 to 13, wherein the catalyst Y is an organic acid zinc or / and a zinc diketone enolate.
15. The method for producing a curable composition according to any one of claims 11 to 14, comprising a step of mixing the photopolymerization initiator (B) after the step of producing the component (A).