Aqueous emulsion composition, mold release coating agent, cured product, and laminate

Abstract

To provide an aqueous emulsion composition which exhibits such effects as suppression of an amount of silicone migration, light releasability, and the like.SOLUTION: Provided is an aqueous emulsion composition, comprising a (meth)acrylate (A) which comprises one or more selected from the group consisting of a polysiloxane (A1) having a (meth)acryloyloxy group on the side chain and a reaction product (A2) of components including a polysiloxane (a1) having a hydroxyl group, a (meth)acrylate (a2) having a hydroxyl group, polyethylene glycol (a3) having a hydroxyl group at one end, and a tri- or more functional isocyanate (a4).SELECTED DRAWING: None

Description

[Technical Field]

[0001] This disclosure relates to aqueous emulsion compositions, release coatings, cured products, and laminates. [Background technology]

[0002] Plastic films such as polyethylene terephthalate are used in various industrial fields due to their excellent properties such as transparency, dimensional stability, mechanical properties, and chemical resistance. Specifically, examples include their use as base films for optical film products such as prism sheets, light diffusion sheets, reflectors, anti-reflective plates, touch panels, explosion-proof films, and PDP filters for LCD components.

[0003] Furthermore, plastic films are often used as base films for release films and are also used as separators for various adhesive sheets and protective films for touch panels.

[0004] As release coatings used for release films, coatings containing silicone resin are known, and it is said that using organo-modified polysiloxane in particular tends to result in good release properties. However, silicone resin often bleeds out to the surface of the coating film and migrates to the adherends such as adhesives and resin molded products laminated on the coating film, which can impair their properties.

[0005] Patent Document 1 proposes a method for laminating a compound liquid consisting of acrylic resin, melamine resin, and silicone resin. However, the above compound liquid requires a curing temperature of 190°C, resulting in significant thermal damage to the substrate. Furthermore, as described in Patent Document 2, an acid catalyst is sometimes used in combination to improve the curability of the melamine resin, but this can worsen the long-term stability (pot life) of the coating agent, leading to increased viscosity and reduced workability. [Prior art documents] [Patent Documents]

[0006] [Patent Document 1] Japanese Patent Application Publication No. 11-170440 [Patent Document 2] Japanese Patent Publication No. 2002-19037 [Disclosure of the Invention] [Problems that the invention aims to solve]

[0007] The problem to be solved in this disclosure is to provide an aqueous emulsion composition that exhibits effects such as suppression of silicone migration and easy peelability. [Means for solving the problem]

[0008] As a result of diligent research, the inventors have found that the above problem can be solved by using a specific compound.

[0009] This disclosure provides the following items: (Item 1) An aqueous emulsion composition comprising a (meth)acrylate (A) which comprises one or more components selected from the group consisting of a polysiloxane (A1) having a (meth)acryloyloxy group in its side chain, and a reaction product (A2) of a component containing a polysiloxane (a1) having a hydroxyl group, a (meth)acrylate (a2) having a hydroxyl group, polyethylene glycol (a3) ​​having a hydroxyl group at one end, and a trifunctional or more polyisocyanate (a4). (Item 2) The aqueous emulsion composition according to item 1, comprising a urethane (meth)acrylate (B), which is a reaction product of components including a hydroxyl group-containing (meth)acrylate (b1), a hydroxyl group-containing polyethylene glycol (b2), and a polyisocyanate (b3). (Item 3) An aqueous emulsion composition according to item 1 or 2, comprising one or more (C) selected from polyfunctional (meth)acrylate (c1) and polyfunctional (meth)acrylamide (c2). (Item 4) An aqueous emulsion composition according to any one of items 1 to 3, comprising a photopolymerization initiator (D). (Item 5) An aqueous emulsion composition according to any of items 1 to 4, comprising an organic diluent (E). (Item 6) A release coating agent comprising an aqueous emulsion composition as described in any of items 1 to 5. (Item 7) A water-based emulsion composition as described in any of items 1 to 5, or a cured product of a mold release coating agent as described in item 6. (Item 8) A laminate comprising the cured material and substrate described in item 7. [Effects of the Invention]

[0010] The aqueous emulsion composition provided in this disclosure exhibits effects such as suppression of silicone migration and easy peelability. [Modes for carrying out the invention]

[0011] Throughout this disclosure, the ranges for each physical property, content, and other numerical values ​​may be set as appropriate (for example, by selecting from the upper and lower limits described in each of the items below). Specifically, for a numerical value α, if A1, A2, A3, etc. are given as examples of the lower limit of numerical value α, and B1, B2, B3, etc. are given as examples of the upper limit of numerical value α, then examples of the range of numerical value α include A1 or more, A2 or more, A3 or more, B1 or less, B2 or less, B3 or less, A1 to B1, A1 to B2, A1 to B3, A2 to B1, A2 to B2, A2 to B3, A3 to B1, A3 to B2, A3 to B3, etc. In this disclosure, "~" is used to mean that the numerical values ​​described before and after it are included as the lower and upper limits.

[0012] <(A) component> (Meth)acrylate (A) (also referred to as the "(A) component" in the present disclosure) containing at least one selected from the group consisting of polysiloxane (A1) having a (meth)acryloyloxy group in the side chain (also referred to as the "(A1) component" in the present disclosure), polysiloxane (a1) having a hydroxyl group (also referred to as the "(a1) component" in the present disclosure), (meth)acrylate (a2) having a hydroxyl group (also referred to as the "(a2) component" in the present disclosure), polyethylene glycol (a3) having a hydroxyl group at one end (also referred to as the "(a3) component" in the present disclosure), and polyisocyanate (a4) having three or more functional groups (also referred to as the "(a4) component" in the present disclosure)) has excellent light releasability of the release layer and suppression of fine unevenness on the surface of the release layer. In the present disclosure, the polysiloxane chain is - silicon (Si) - oxygen (O) - [- silicon (Si) - oxygen (O) -] L - silicon (Si) - (L is an integer of 1 or more), which is a structure represented by

[0013] <(A1) component> As the (A1) component, those represented by the general formula (1) are exemplified.

[0014] General formula (1): [Chemical formula] (In the general formula (1), χ1 to χ2, χ5 to χ6 are each independently a hydrocarbon group having 1 to 20 carbon atoms which may have an ether bond and / or an ester bond and may have a hydroxyl group and / or a (meth)acryloyloxy group, χ3 to χ4 are each independently a hydrocarbon group having 1 to 20 carbon atoms which may have an ether bond and / or an ester bond and may have a hydroxyl group and / or a (meth)acryloyloxy group, and may be the same or different for each repeating unit, Among χ1 to χ6, at least one has a hydroxyl group, Of χ1 to χ6, at least one has a (meth)acryloyloxy group. ψ1 to ψ2 are each independently linear or branched hydrocarbon groups having 1 to 20 carbon atoms, which may have ether bonds. m is an integer between 1 and 300, inclusive. ω1 to ω4 are hydrogen atoms.

[0015] Examples of the upper limits of the number of carbon atoms in χ1 to χ6 of general formula (1) are 20, 18, 16, 14, 12, 10, 8, 6, 5, 4, 3, and 2, respectively, and examples of the lower limits are 18, 16, 14, 12, 10, 8, 6, 5, 4, 3, 2, and 1, respectively. In one embodiment, it is preferable that the number of carbon atoms in χ1 to χ6 of general formula (1) is 1 or more and 20 or less, respectively.

[0016] In general formula (1), the "linear or branched hydrocarbon group having 1 to 20 carbon atoms that may have an ether bond" in ψ1 and ψ2 refers to a linear hydrocarbon group having 1 to 20 carbon atoms that may have an ether bond, or a branched hydrocarbon group having 1 to 20 carbon atoms that may have an ether bond. 1 and ψ 2 Examples of the upper limit of the number of carbon atoms are 20, 18, 16, 14, 12, 10, 8, 6, 4, 2, etc., and examples of the lower limit are 18, 16, 14, 12, 10, 8, 6, 4, 2, 1, etc. In one embodiment, the number of carbon atoms in ψ1 and ψ2 of general formula (1) is preferably 1 or more and 20 or less, respectively. As a linear or branched hydrocarbon group with 1 or more and 20 or less carbon atoms in ψ1 and ψ2 of general formula (1), C α H 2α-1 A structure represented by (where α is an integer between 1 and 20, inclusive) is given as an example.

[0017] Examples of upper limits for m in general formula (1) include 300, 275, 250, 225, 200, 175, 150, 125, 100, 75, 50, 25, 10, 5, 3, etc., and examples of lower limits include 275, 250, 225, 200, 175, 150, 125, 100, 75, 50, 25, 10, 5, 3, 1, etc. In one embodiment, m in general formula (1) is an integer between 1 and 300.

[0018] (A1) Examples of the component include the product name "KP-420" (manufactured by Shin-Etsu Chemical Co., Ltd.) and the product name "TEGO RAD 2100" (manufactured by Evonik Japan Co., Ltd.). From the descriptions in Japanese Patent Publication No. 2020-189948 and Japanese Patent Publication No. 2015-527424, it can be seen that TEGO RAD 2100 is a component having a (meth)acryloyloxy group in the side chain of the polysiloxane.

[0019] (A1) The upper limits of the number-average molecular weight of the components are 20,000, 19,000, 18,000, 17,000, 16,000, 15,000, 14,000, 13,000, 12,000, 11,000, 10,000, 9,000, 8,000, 7,000, 6,000, 5,000, 4,000, 3,000, 2,000, 1,600, 1,400, 1,000, etc. Examples include 19,000, 18,000, 17,000, 16,000, 15,000, 14,000, 13,000, 12,000, 11,000, 10,000, 9,000, 8,000, 7,000, 6,000, 5,000, 4,000, 3,000, 2,000, 1,600, 1,400, 1,200, 1,000, 500, etc. In one embodiment, the number average molecular weight of component (A1) is preferably around 500 to 20,000. When the number average molecular weight of component (A1) is 500 or more, it exhibits excellent light peelability. Light peelability tends to improve as the molecular weight of component (A1) increases. In this disclosure, the number-average molecular weight is the polystyrene equivalent value obtained by gel permeation chromatography.

[0020] (A1) The upper limits for the functional group equivalent (g / mol) of component are 20,000, 19,000, 18,000, 17,000, 16,000, 15,000, 14,000, 13,000, 12,000, 11,000, 10,000, 9,000, 8,000, 7,000, 6,000, 5,000, 4,000, 3,000, 2,000, 1,600, 1,400, 1,0 Examples include 00, and examples of lower limits include 19,000, 18,000, 17,000, 16,000, 15,000, 14,000, 13,000, 12,000, 11,000, 10,000, 9,000, 8,000, 7,000, 6,000, 5,000, 4,000, 3,000, 2,000, 1,600, 1,400, 1,200, 1,000, 500, etc. In one embodiment, the functional group equivalent (g / mol) of component (A1) is preferably around 500 to 20,000. When the functional group equivalent (g / mol) of component (A1) is 500 or more, it exhibits excellent light peelability. The ease of peeling tends to improve as the functional group equivalent (g / mol) of component (A1) increases. In this disclosure, the functional group equivalent refers to the molecular weight per functional group.

[0021] <(A2) component> Component (A2) is a reaction product of components including a polysiloxane (a1) having hydroxyl groups, a (meth)acrylate (a2) having hydroxyl groups, polyethylene glycol (a3) ​​having a hydroxyl group at one end, and a trifunctional or more polyisocyanate (a4). Component (A2) is a urethane (meth)acrylate formed by the reaction of the hydroxyl groups of component (a1), component (a2), component (a3), and component (a4) and the isocyanate group.

[0022] Examples of component (a1) include dimethylpolysiloxane having a hydroxyl group and diethylpolysiloxane having a hydroxyl group. Examples of the position of the hydroxyl group of component (a1) include both ends of the polysiloxane chain, one end of the polysiloxane chain, and the side chain of the polysiloxane chain.

[0023] (a1) The component may be a commercially available product. Examples of such products include components containing -OH groups at both ends of a polysiloxane (product names "KF-6000", "KF-6001", "KF-6002", "KF-6003" (manufactured by Shin-Etsu Chemical Co., Ltd.)), and components containing -OH groups at one end of a polysiloxane (product names "X-22-170BX", "X-22-170DX", "X-22-176DX", "X-22-176F", "X-22-176GX-A" (manufactured by Shin-Etsu Chemical Co., Ltd.)) (product names "Siraplane FM-0411", "Siraplane FM-0421", "Siraplane FM-0425", "Siraplane FM-DA11", "Siraplane FM-DA21", "Siraplane FM-DA26" (manufactured by JNC Corporation)), etc.

[0024] (a1) Component is preferably a dimethylpolysiloxane having a hydroxyl group, more preferably a dimethylpolysiloxane having one hydroxyl group, and even more preferably a dimethylpolysiloxane having one hydroxyl group at one end, as it provides good exfoliation properties.

[0025] (a1) The upper limits of the number-average molecular weight of the components are 20,000, 19,000, 18,000, 17,000, 16,000, 15,000, 14,000, 13,000, 12,000, 11,000, 10,000, 9,000, 8,000, 7,000, 6,000, 5,000, 4,000, 3,000, 2,000, 1,600, 1,400, 1,000, 800, etc. Examples include 19,000, 18,000, 17,000, 16,000, 15,000, 14,000, 13,000, 12,000, 11,000, 10,000, 9,000, 8,000, 7,000, 6,000, 5,000, 4,000, 3,000, 2,000, 1,600, 1,400, 1,200, 1,000, 800, 500, etc. In one embodiment, the number average molecular weight of component (a1) is preferably about 500 to 20,000, more preferably about 500 to 5,000, and even more preferably about 500 to 3,000.

[0026] (a1) The upper limits for the functional group equivalent (g / mol) of the component are 20,000, 19,000, 18,000, 17,000, 16,000, 15,000, 14,000, 13,000, 12,000, 11,000, 10,000, 9,000, 8,000, 7,000, 6,000, 5,000, 4,000, 3,000, 2,000, 1,600, 1,400, 1,000, 8 Examples include 00, and examples of lower limits include 19,000, 18,000, 17,000, 16,000, 15,000, 14,000, 13,000, 12,000, 11,000, 10,000, 9,000, 8,000, 7,000, 6,000, 5,000, 4,000, 3,000, 2,000, 1,600, 1,400, 1,200, 1,000, 800, 500, etc. In one embodiment, the functional group equivalent (g / mol) of component (a1) is preferably about 500 to 20,000, more preferably about 500 to 5,000, and even more preferably about 500 to 3,000.

[0027] Examples of upper limits for the content of component (a1) in relation to 100% by mass (on a solid content basis) of the total amount of components (a1), (a2), (a3), and (a4) include 97, 95, 90, 85, 80, 75, 70, 65, 60, 55, 50, 45, 40, 35, 30, 25, 20, 15, 10, and 5% by mass, while examples of lower limits include 95, 90, 85, 80, 75, 70, 65, 60, 55, 50, 45, 40, 35, 30, 25, 20, 15, 10, and 5% by mass. In one embodiment, the content of component (a1) in relation to the total amount of components (a1), (a2), (a3), and (a4) (in terms of solid content) is preferably about 1 to 50% by mass, more preferably about 1 to 40% by mass, even more preferably about 1 to 30% by mass, and particularly preferably about 1 to 20% by mass. When the content is above the lower limit, the peelability is improved. When the content is below the upper limit, the suppression of surface irregularities, the suppression of silicone migration, and the emulsification properties are improved.

[0028] (a2) Examples of components include 2-hydroxyethyl (meth)acrylate, hydroxypropyl (meth)acrylate, 4-hydroxybutyl (meth)acrylate, 3-hydroxy-1-adamantyl (meth)acrylate, 2-hydroxy-3-phenoxypropyl (meth)acrylate, glycerin di(meth)acrylate, 2-hydroxy-3-(meth)acryloyloxypropyl (meth)acrylate, 1-((meth)acryloyloxy)-3-(methacryloyloxy)-2-propanol, pentaerythritol tri(meth)acrylate, dipentaerythritol penta(meth)acrylate, tripentaerythritol hepta(meth)acrylate, etc.

[0029] Examples of upper limits for the hydroxyl value (mgKOH / g) of component (a2) include 500, 450, 400, 350, 300, 250, 200, 150, 140, 130, 120, 110, 100, 90, 80, 70, 60, 50, 40, 30, 20, 10, 5, etc., and lower limits include 450, 400, 350, 300, 250, 200, 150, 140, 130, 120, 110, 100, 90, 80, 70, 60, 50, 40, 30, 20, 10, 5, 1, etc. In one embodiment, the hydroxyl value (mgKOH / g) of component (a2) is preferably 1 to 500, more preferably 10 to 500, and even more preferably 30 to 300.

[0030] Examples of upper limits for the molecular weight of component (a2) when calculated based on atomic weight include 1,000, 950, 900, 850, 800, 750, 700, 650, 600, 550, 500, 450, 400, 350, 300, 250, 200, 150, 100, 50, 25, etc., while examples of lower limits include 950, 900, 850, 800, 750, 700, 650, 600, 550, 500, 450, 400, 350, 300, 250, 200, 150, 100, 50, 25, 10, etc. In one embodiment, the molecular weight of component (a2) when calculated based on atomic weight is preferably 100 to 1,000, more preferably 200 to 600.

[0031] Examples of upper limits for the content of component (a2) relative to 100% by mass (on a solid content basis) of the total amount of components (a1), (a2), (a3), and (a4) include 97, 95, 90, 85, 80, 75, 70, 65, 60, 55, 50, 45, 40, 35, 30, 25, 20, 15, 10, and 5% by mass, while examples of lower limits include 95, 90, 85, 80, 75, 70, 65, 60, 55, 50, 45, 40, 35, 30, 25, 20, 15, 10, and 5% by mass. In one embodiment, the content of component (a2) in relation to the total amount of components (a1), (a2), (a3), and (a4) in 100% by mass (in terms of solid content) is preferably about 1 to 70% by mass, more preferably about 5 to 65% by mass, even more preferably 10 to 60% by mass, and particularly preferably about 15 to 50% by mass.

[0032] Component (a3) ​​is a component having a hydroxyl group at one end of a polyethylene glycol chain (also referred to in this disclosure as a "PEG chain"). Component (a3) ​​preferably has one hydroxyl group, and more preferably has one hydroxyl group at one end, as it can suppress gelation resulting from the three-dimensional network structure produced by the reaction with component (a4) and also provides good peelability. Examples of component (a3) ​​include polyethylene glycol monoalkyl ether, polyethylene glycol mono(meth)acrylate, polyethylene glycol monoallyl ether, and polyethylene glycol monoacylate.

[0033] Examples of polyethylene glycol monoalkyl ethers include polyethylene glycol monomethyl ether, polyethylene glycol monoethyl ether, polyethylene glycol monopropyl ether, polyethylene glycol monobutyl ether, polyethylene glycol monopentyl ether, polyethylene glycol monohexyl ether, polyethylene glycol monoheptyl ether, polyethylene glycol monooctyl ether, polyethylene glycol lauryl ether, polyethylene glycol cetyl ether, polyethylene glycol stearyl ether, polyethylene glycol nonylphenyl ether, polyethylene glycol tridecyl ether, polyethylene glycol oleyl ether, polyethylene glycol octylphenyl ether, and polyoxyethylene oleyl cetyl ether.

[0034] Examples of polyethylene glycol mono(meth)acrylate include the polyethylene glycol mono(meth)acrylate described in Japanese Patent Publication No. 2021-017592.

[0035] Examples of polyethylene glycol monoallyl ethers include the polyethylene glycol monoallyl ether described in Japanese Patent Publication No. 2021-017592.

[0036] Examples of polyethylene glycol monoacylate include the polyethylene glycol monoacylate described in Japanese Patent Publication No. 2021-017592.

[0037] (a3) The component is preferably represented by the following general formula (2) because it improves emulsification and allows the various properties described in this disclosure to be exhibited well.

[0038] General formula (2): H-(OCH2CH2) n -OR (In the formula, R represents one of the alkyl group, allyl group, (meth)acryloyl group, or acyl group having 1 to 4 carbon atoms, and n represents an integer from 3 to 125.)

[0039] (a3) Component is particularly preferably polyethylene glycol monomethyl ether or polyethylene glycol mono(meth)acrylate.

[0040] (a3) The component may be a commercially available product. Examples of such products include the product names "Uniox M-400", "Uniox M-550", "Uniox M-1000", "Uniox M-2000", "Uniox M-2500", "Uniox M-3000", "Uniox M-4000", "Bremmer PE-90", "Bremmer PE-200", "Bremmer PE-300", "Bremmer AE-90", "Bremmer AE-200", and "Bremmer AE-400" (manufactured by NOF Corporation).

[0041] Examples of upper limits for the hydroxyl value (mgKOH / g) of component (a3) ​​include 500, 450, 400, 350, 300, 250, 200, 150, 140, 130, 120, 110, 100, 90, 80, 70, 60, 50, 40, 30, 20, 10, 5, etc., and lower limits include 450, 400, 350, 300, 250, 200, 150, 140, 130, 120, 110, 100, 90, 80, 70, 60, 50, 40, 30, 20, 10, 5, 1, etc. In one embodiment, the hydroxyl value (mgKOH / g) of component (a3) ​​is preferably 10 to 500. In this disclosure, the hydroxyl value is a value measured in accordance with JIS K0070:1992.

[0042] Examples of the upper limit of the number-average molecular weight of component (a3) ​​include 5,000, 4,500, 4,000, 3,500, 3,000, 2,500, 2,000, 1,500, 1,000, 900, 800, 700, 600, 500, 400, 300, 200, etc., and examples of the lower limit include 4,500, 4,000, 3,500, 3,000, 2,500, 2,000, 1,500, 1,000, 900, 800, 700, 600, 500, 400, 300, 200, 100, etc. In one embodiment, the number-average molecular weight of component (a3) ​​is preferably 100 to 5,000, more preferably 200 to 3,000, and even more preferably 300 to 2,000. When using (a3) ​​with a number-average molecular weight of 400 or less, it is particularly preferable to use in combination with a number-average molecular weight of 800 or more, as this results in better emulsification and superior properties of the present invention. In this disclosure, the number-average molecular weight refers to the polystyrene equivalent value in gel permeation chromatography.

[0043] Examples of upper limits for the content of component (a3) ​​(on a solid content basis) relative to 100% by mass (on a solid content basis) of the total amount of components (a1), (a2), (a3), and (a4) include 97, 95, 90, 85, 80, 75, 70, 65, 60, 55, 50, 45, 40, 35, 30, 25, 20, 15, 10, and 5% by mass, while examples of lower limits include 95, 90, 85, 80, 75, 70, 65, 60, 55, 50, 45, 40, 35, 30, 25, 20, 15, 10, and 5% by mass. In one embodiment, the content of component (a3) ​​in relation to the total amount of components (a1), (a2), (a3), and (a4) in 100% by mass (in terms of solid content) is preferably about 10 to 80% by mass, more preferably about 15 to 70% by mass, and even more preferably about 20 to 60% by mass.

[0044] (a4) Examples of components include triisocyanates and tetraisocyanates. Examples of triisocyanates include 4,4',4''-methylidinetris(isocyanatobenzene), lysine triisocyanate, and polymers of various isocyanates (e.g., isocyanurates, adducts, biuretes, etc.). Examples of tetraisocyanates include polymers of various isocyanates (e.g., isocyanurates, adducts, biuretes, etc.). Examples of various isocyanates include linear aliphatic polyfunctional isocyanates, branched aliphatic polyfunctional isocyanates, alicyclic polyfunctional isocyanates, and aromatic polyfunctional isocyanates. Examples of linear aliphatic polyfunctional isocyanates include trimethylene diisocyanate, tetramethylene diisocyanate, pentamethylene diisocyanate, hexamethylene diisocyanate, octamethylene diisocyanate, and decamethylene diisocyanate. Examples of branched aliphatic polyfunctional isocyanates include methyl diisocyanatohexanoate and trimethylhexamethylene diisocyanate. Examples of alicyclic polyfunctional isocyanates include dicyclohexylmethane diisocyanate, isophorone diisocyanate, bis(isocyanatomethyl)cyclohexane, cyclohexanediylbis(methylene)diisocyanate, methylcyclohexanediyldiisocyanate, and norbornenemethane diisocyanate. Examples of aromatic polyfunctional isocyanates include toluene diisocyanate, xylene diisocyanate, and diisocyanatonaphthalene. (a4) By using a trifunctional or higher isocyanate as component (a4), the proportion of components having structures derived from components (a1), (a2), and (a3) ​​in the same molecule increases, and the generation of components that do not have a structure derived from component (a2) can be suppressed, which is preferable as it exhibits good silicone migration properties.

[0045] Examples of the upper limit of the number-average molecular weight of component (a4) include 5,000, 4,500, 4,000, 3,500, 3,000, 2,500, 2,000, 1,500, 1,000, 900, 800, 700, 600, 500, 400, 300, 200, etc., and examples of the lower limit include 4,500, 4,000, 3,500, 3,000, 2,500, 2,000, 1,500, 1,000, 900, 800, 700, 600, 500, 400, 300, 200, 100, etc. In one embodiment, the number-average molecular weight of component (a4) is preferably 400 to 5,000.

[0046] Examples of upper limits for the content of component (a4) relative to 100% by mass (on a solid content basis) of the total amount of components (a1), (a2), (a3), and (a4) include 97, 95, 90, 85, 80, 75, 70, 65, 60, 55, 50, 45, 40, 35, 30, 25, 20, 15, 10, and 5% by mass, while examples of lower limits include 95, 90, 85, 80, 75, 70, 65, 60, 55, 50, 45, 40, 35, 30, 25, 20, 15, 10, and 5% by mass. In one embodiment, the content of component (a4) in relation to the total amount of components (a1), (a2), (a3), and (a4) (on a solid content basis) is preferably about 5 to 60% by mass, more preferably about 10 to 50% by mass, and even more preferably about 15 to 40% by mass.

[0047] Examples of upper limits for the number of (meth)acryloyl groups in component (a2) include 20, 18, 16, 14, 12, 10, 8, 6, 5, 4, 3, and 2, while examples of lower limits include 18, 16, 14, 12, 10, 8, 6, 5, 4, 3, 2, and 1. In one embodiment, the number of (meth)acryloyl groups in component (a2) is preferably about 1 to 20. Examples of upper limits for the number of hydroxyl groups in component (a1), component (a2), component (a3), and component (a4) is 5, 4, 3, and 2, while examples of lower limits include 4, 3, 2, and 1. In one embodiment, the number of hydroxyl groups in component (a1), component (a2), component (a3), and component (a4) is preferably about 1 to 5.

[0048] The molar ratio of the hydroxyl group of component (a1), the hydroxyl group of component (a2), the hydroxyl group of component (a3), and the isocyanate group of component (a4) is: 0.01 or more and 1.0 or less / 1.0 or more / 0.5 or more and 2.0 or less / 2.5 or more and 6.0 or less, 0.01 to 1.0 / 1.0 to 6.0 / 0.5 to 2.0 / 2.5 to 6.0, 0.05 to 0.5 / 1.0 to 4.0 / 0.5 to 1.5 / 2.5 to 5.0, 0.08 to 0.3 / 1.5 to 3.5 / 0.7 to 1.3 / 2.5 to 4.0, 0.09 to 0.2 / 2.0 to 3.0 / 0.8 to 1.3 / 2.5 to 3.5 Examples include the following.

[0049] Component (A2) may include components other than components (a1), (a2), (a3), and (a4). Examples of such other components include compounds having at least one functional group that can react with an isocyanate group or a hydroxyl group in the molecule. Examples of functional groups that can react with such isocyanate groups include hydroxyl groups and amino groups. Examples of functional groups that can react with such hydroxyl groups include isocyanate groups and carboxyl groups.

[0050] The method for producing component (A2) using components (a1), (a2), (a3), and (a4) is not particularly limited as long as it involves reacting components (a1), (a2), (a3), and (a4). Specifically, for example, one method is to react components (a1), (a3), and (a4) in the presence of a catalyst (such as organotin (tin octolate, octyltin dilaurate, etc.) or organozirconium (such as zirconium tetraacetylacetonate)) at an appropriate reaction temperature (e.g., 60-90°C), then add component (a2), and similarly react it in the presence of a catalyst at an appropriate reaction temperature (e.g., 60-90°C). The order in which components (a1), (a2), (a3), and (a4) are added is not particularly limited, but it is preferable to react components (a1), (a2), and (a4), or components (a1), (a2), (a3), and (a4) in a charge ratio such that the ratio of NCO groups to OH groups is equimolar or greater, and then add component (a2) in a charge amount such that the ratio of OH groups to remaining NCO groups is equimolar or greater, thereby suppressing the formation of components that do not contain (meth)acryloyl groups and improving silicone migration properties. When reacted in this way, component (A2) becomes a mixture of the reaction product of components (a1), (a2), (a3), and (a4), and the excess amount of component (a2) added. Organic diluents can also be included at appropriate points in these methods.

[0051] Substances exemplified as component (A) and substances known as component (A) may be used individually or in combination of two or more.

[0052] Examples of upper limits for the content of component (a1) (on a solid content basis) relative to 100% by mass (on a solid content basis) of the total amount of components (A), (B), and (C) include 95, 90, 85, 80, 75, 70, 65, 60, 55, 50, 45, 40, 35, 30, 25, 20, 15, 10, 5, 1.5, 1, 0.5, and 0.1% by mass, while examples of lower limits include 90, 85, 80, 75, 70, 65, 60, 55, 50, 45, 40, 35, 30, 25, 20, 15, 10, 5, 1.5, 1, 0.5, 0.1, and 0.05% by mass. In one embodiment, the content of component (a1) in relation to 100% by mass (solids) of the total amount of components (A), (B), and (C) is preferably about 0.05 to 10% by mass, more preferably about 0.1 to 5% by mass, and even more preferably about 0.1 to 1.5% by mass. Note that the content of component (a1) in relation to 100% by mass (solids) of the total amount of components (A), (B), and (C) is the value obtained by dividing the sum of the content of unreacted component (a1) remaining in the system and the content of component (a1) that has reacted with other components and been incorporated into component (A) by the total amount of components (A), (B), and (C).

[0053] Examples of upper limits for the content of component (A) relative to 100% by mass (on a solid content basis) of the total amount of components (A), (B), and (C) include 98, 95, 90, 85, 80, 75, 70, 65, 60, 55, 50, 45, 40, 35, 30, 25, 20, 15, 10, 5, 4, 3, and 2% by mass, while examples of lower limits include 95, 90, 85, 80, 75, 70, 65, 60, 55, 50, 45, 40, 35, 30, 25, 20, 15, 10, 5, 4, 3, 2, and 1% by mass. In one embodiment, the content of component (A) in relation to the total amount of components (A), (B), and (C) (in terms of solid content) is preferably about 1 to 50% by mass, more preferably about 2 to 40% by mass, and even more preferably about 3 to 30% by mass.

[0054] <(B) component> Component (B) is a urethane (meth)acrylate which is a reaction product of components including a hydroxyl-containing (meth)acrylate (b1), a hydroxyl-containing polyethylene glycol (b2), and a polyisocyanate (b3). The inclusion of polyalkylene glycol chains (especially PEG chains) improves emulsification and allows the various properties described in this disclosure to be exhibited favorably.

[0055] <(b1) component> Component (b1) is a (meth)acrylate having a hydroxyl group. Examples of the type of component (b1) and various parameters (molecular weight, etc.) are the hydroxyl group-containing (meth)acrylates and various parameters (molecular weight, etc.) exemplified in the section describing component (a2).

[0056] Examples of upper limits for the content of component (b1) (on a solid content basis) relative to 100% by mass (on a solid content basis) of the total amount of components (b1), (b2), and (b3) include 98, 95, 90, 85, 80, 75, 70, 65, 60, 55, 50, 45, 40, 35, 30, 25, 20, 15, 10, and 5% by mass, while examples of lower limits include 95, 90, 85, 80, 75, 70, 65, 60, 55, 50, 45, 40, 35, 30, 25, 20, 15, 10, and 5% by mass. In one embodiment, the content of component (b1) (on a solid content basis) relative to 100% by mass (on a solid content basis) of the total amount of components (b1), (b2), and (b3) is preferably about 1 to 98% by mass.

[0057] <(b2) component> (b2) Component is polyethylene glycol having a hydroxyl group. Examples of (b2) component include polyethylene glycols, polyethylene glycol monoalkyl ethers, polyethylene glycol mono(meth)acrylates, polyethylene glycol monoallyl ethers, polyethylene glycol monoacylates, etc.

[0058] Examples of polyethylene glycols include polyethylene glycol, polyethylene glycol polypropylene glycol polyethylene glycol (block copolymer), polypropylene glycol polyethylene glycol polypropylene glycol (block copolymer), polyethylene glycol polypropylene glycol (random copolymer), polyoxytetramethylene glycol polyethylene glycol polyoxytetramethylene glycol (block copolymer), polyethylene glycol polyoxytetramethylene glycol polyethylene glycol (block copolymer), polyethylene glycol polyoxytetramethylene glycol (random copolymer), and others.

[0059] Examples of polyethylene glycol monoalkyl ethers include the polyethylene glycol monoalkyl ethers listed in component (a3).

[0060] Examples of polyethylene glycol mono(meth)acrylates include polyethylene glycol mono(meth)acrylate, polyethylene glycol polypropylene glycol mono(meth)acrylate, and poly(ethylene glycol tetramethylene glycol) mono(meth)acrylate.

[0061] Examples of polyethylene glycol monoallyl ethers include polyethylene glycol monoallyl ether and polyethylene glycol polypropylene glycol monoallyl ether.

[0062] Examples of polyethylene glycol monoacylates include polyethylene glycol monolaurate, polyethylene glycol monostearate, and polyethylene glycol monooleate.

[0063] Other preferred examples of components (b2) and various parameters (such as hydroxyl value) are the same as those described in (a3).

[0064] Examples of upper limits for the content of component (b2) (on a solid content basis) relative to 100% by mass (on a solid content basis) of the total amount of components (b1), (b2), and (b3) include 98, 95, 90, 85, 80, 75, 70, 65, 60, 55, 50, 45, 40, 35, 30, 25, 20, 15, 10, and 5% by mass, while examples of lower limits include 95, 90, 85, 80, 75, 70, 65, 60, 55, 50, 45, 40, 35, 30, 25, 20, 15, 10, and 5% by mass. In one embodiment, the content of component (b2) (on a solid content basis) relative to 100% by mass (on a solid content basis) of the total amount of components (b1), (b2), and (b3) is preferably about 1 to 98% by mass.

[0065] <(b3) component> (b3) Component is a polyisocyanate. Examples of the types of component (b3) and various parameters (number-average molecular weight, etc.) include triisocyanates, tetraisocyanates, and various parameters (number-average molecular weight, etc.) as exemplified in the section describing component (a4). Other examples of the types of component (b3) include various known diisocyanates.

[0066] Examples of upper limits for the content of component (b3) (on a solid content basis) relative to 100% by mass (on a solid content basis) of the total amount of components (b1), (b2), and (b3) include 98, 95, 90, 85, 80, 75, 70, 65, 60, 55, 50, 45, 40, 35, 30, 25, 20, 15, 10, and 5% by mass, while examples of lower limits include 95, 90, 85, 80, 75, 70, 65, 60, 55, 50, 45, 40, 35, 30, 25, 20, 15, 10, and 5% by mass. In one embodiment, the content of component (b3) (on a solid content basis) relative to 100% by mass (on a solid content basis) of the total amount of components (b1), (b2), and (b3) is preferably about 1 to 98% by mass.

[0067] (B) The substances exemplified as components and known components as components (B) can be used individually or in combination of two or more.

[0068] The molar ratio of the hydroxyl group of component (b1), the hydroxyl group of component (b2), and the isocyanate group of component (b3) ([(b1) hydroxyl group / (b2) hydroxyl group / (b3) isocyanate group]) is, 0.5 or more / 0.3 or more and 2.5 or less / 2.5 or more and 6.0 or less 0.5 or more and 6.0 or less / 0.3 or more and 2.5 or less / 2.5 or more and 6.0 or less 1.0 or more and 5.0 or less / 0.3 or more and 2.0 or less / 2.5 or more and 5.0 or less 2.0 or more and 4.0 or less / 0.3 or more and 1.5 or less / 2.5 or more and 4.0 or less 2.5 or more and 3.5 or less / 0.5 or more and 1.0 or less / 2.5 or more and 3.5 or less Examples include the following.

[0069] The upper limits for the content ratio (mass ratio, based on solid content, [(A) component / (B) component]) of component (A) to component (B) are 99 / 1, 95 / 5, 90 / 10, 85 / 15, 80 / 20, 75 / 25, 70 / 30, 65 / 35, 60 / 40, 55 / 45, 50 / 50, 45 / 55, 40 / 60, 35 / 65, 30 / 70, 25 / 75, 20 / 80, and 15. Examples of lower limits include 85 / 85, 10 / 90, 5 / 95, etc., and examples of lower limits include 95 / 5, 90 / 10, 85 / 15, 80 / 20, 75 / 25, 70 / 30, 65 / 35, 60 / 40, 55 / 45, 50 / 50, 45 / 55, 40 / 60, 35 / 65, 30 / 70, 25 / 75, 20 / 80, 15 / 85, 10 / 90, 5 / 95, 1 / 99, etc. In one embodiment, the content ratio (mass ratio, in terms of solid content, [component (A) / component (B)]) of component (A) to component (B) is preferably around 1 / 99 to 99 / 1.

[0070] Examples of upper limits for the content of component (B) (on a solid content basis) relative to 100% by mass (on a solid content basis) of the total amount of components (A), (B), and (C) include 98, 95, 90, 85, 80, 75, 70, 65, 60, 55, 50, 45, 40, 35, 30, 25, 20, 15, 10, and 5% by mass, while examples of lower limits include 95, 90, 85, 80, 75, 70, 65, 60, 55, 50, 45, 40, 35, 30, 25, 20, 15, 10, and 5% by mass. In one embodiment, the content of component (B) (on a solid content basis) relative to 100% by mass (on a solid content basis) of the total amount of components (A), (B), and (C) is preferably about 1 to 98% by mass.

[0071] The method for producing component (B) is not particularly limited as long as it involves reacting components (b1), (b2), and (b3), and various known production methods are given as examples. Specifically, examples include a method in which components (b2) and (b3) are reacted in the presence of a catalyst at an appropriate reaction temperature (e.g., 60-90°C), then component (b1) is added and reacted similarly in the presence of a catalyst at an appropriate reaction temperature (e.g., 60-90°C), and a method in which components (b1), (b2), and (b3) are reacted in the presence of a catalyst at an appropriate reaction temperature (e.g., 60-90°C), then an additional component (b1) is added and reacted similarly in the presence of a catalyst at an appropriate reaction temperature (e.g., 60-90°C).

[0072] <(C) component> The aqueous emulsion composition of this disclosure is provided with excellent scratch resistance by containing one or more (C) selected from polyfunctional (meth)acrylates (c1) and polyfunctional (meth)acrylamides (c2) (hereinafter also referred to as "component (C)"). Component (c1) is a polyfunctional (meth)acrylate other than components (A) and (B).

[0073] Examples of components (c1) include di(meth)acrylate, tri(meth)acrylate, tetra(meth)acrylate, penta(meth)acrylate, hexa(meth)acrylate, and poly(meth)acrylate. Examples of di(meth)acrylates include ethylene glycol di(meth)acrylate, propylene glycol di(meth)acrylate, diethylene glycol di(meth)acrylate, erythritol di(meth)acrylate, pentaerythritol di(meth)acrylate, and dipentaerythritol di(meth)acrylate. Examples of tri(meth)acrylates include trimethylolpropane tri(meth)acrylate, ethylene oxide-modified trimethylolpropane tri(meth)acrylate, propylene oxide-modified trimethylolpropane tri(meth)acrylate, propylene oxide-modified glycerin(meth)acrylate, and pentaerythritol tri(meth)acrylate. Examples of tetra(meth)acrylates include pentaerythritol tetra(meth)acrylate, ethylene oxide-modified pentaerythritol tetra(meth)acrylate, dipentaerythritol tetra(meth)acrylate, and ditrimethylolpropane tetra(meth)acrylate. Examples of penta(meth)acrylates include dipentaerythritol penta(meth)acrylate. Examples of hexa(meth)acrylates include dipentaerythritol hexa(meth)acrylate and ethylene oxide-modified dipentaerythritol hexa(meth)acrylate. Examples of poly(meth)acrylates include pentaerythritol poly(meth)acrylate, dipentaerythritol poly(meth)acrylate, tripentaerythritol poly(meth)acrylate, and glycerin poly(meth)acrylate. In this disclosure, poly(meth)acrylate means a mixture of substances having multiple types of (meth)acryloyl groups.

[0074] Other examples of (c1) components include urethane (meth)acrylate, polyester (meth)acrylate, epoxy (meth)acrylate, etc.

[0075] Various known methods for synthesizing urethane (meth)acrylate are given as examples. (1) A method of further urethane-forming a hydroxyl group-containing (meth)acrylate into a prepolymer having isocyanate groups obtained by urethane-forming a polyol and a polyisocyanate. (2) A method of reacting a hydroxyl group-containing prepolymer obtained by urethane reaction of a polyol and a polyisocyanate with an isocyanate group-containing (meth)acrylate. (3) A method for reacting polyisocyanate with a hydroxyl group-containing (meth)acrylate, (4) Method for reacting a polyol with an isocyanate group-containing (meth)acrylate Examples include the following. In the synthesis method of urethane (meth)acrylate, various known catalysts (such as dibutyltin dilaurate) can be used as appropriate, if necessary. In the synthesis method of urethane (meth)acrylate, it is possible to obtain it by reacting each component under the temperature and pressure conditions used for the urethane formation reaction.

[0076] Examples of polyols include polyether polyols, polyester polyols, polycarbonate polyols, acrylic polyols, polyolefin polyols, neopentyl glycol, 3-methyl-1,5-pentanediol, ethylene glycol, propylene glycol, 1,4-butanediol, 1,6-hexanediol, trimethylolpropane, pentaerythritol, tricyclodecanedimethylol, and bis-[hydroxymethyl]-cyclohexane.

[0077] Examples of polyisocyanates include polyisocyanates containing linear hydrocarbon groups, polyisocyanates containing alicyclic hydrocarbon groups, and polyisocyanates containing aromatic hydrocarbon groups. Examples of polyisocyanates containing linear hydrocarbon groups include hexamethylene diisocyanate. Examples of polyisocyanates containing alicyclic hydrocarbon groups include isophorone diisocyanate and dicyclohexylmethane diisocyanate. Examples of polyisocyanates containing aromatic hydrocarbon groups include tolylene diisocyanate, xylene diisocyanate, diphenylmethane-4,4'-diisocyanate, and 3-methyldiphenylmethane diisocyanate. Examples of other polyisocyanates include 1,5-naphthalene diisocyanate, adducts of the above-mentioned polyisocyanates and various known polyisocyanates, and polymers of these isocyanates. Examples of such polyisocyanates include biuret, nulate, adduct, and allophanate. Examples of polyisocyanate biuret include product names "Duranate 24A-100", "Biuret 22A-75P", and "Biuret 21S-75E" (all manufactured by Asahi Kasei Corporation). Examples of polyisocyanate nulate include product names "Coronate HK" and "Coronate HXR" (both manufactured by Tosoh Corporation). Examples of polyisocyanate adduct include product name "Coronate HL" (manufactured by Tosoh Corporation). Examples of polyisocyanate allophanate include product name "Coronate 2770" (manufactured by Tosoh Corporation). Furthermore, the polyisocyanates of this disclosure may have an average number of isocyanate groups of approximately 3 to 10. The average number of isocyanate groups can be calculated using the following formula. Average number of isocyanate groups = (number-average molecular weight (Mn) × isocyanate group concentration (%)) / (42.02 × 100). The isocyanate group concentration (%) in the formula is the value measured by the method described in JIS K 1603-1:2007.

[0078] Examples of hydroxyl group-containing (meth)acrylates include hydroxyl group-containing (meth)acrylates containing chain-like hydrocarbon groups, hydroxyl group-containing (meth)acrylates containing alicyclic hydrocarbon groups, and hydroxyl group-containing (meth)acrylates containing aromatic hydrocarbon groups. Examples of hydroxyl group-containing (meth)acrylates containing chain-like hydrocarbon groups include 1-hydroxymethyl (meth)acrylate, 2-hydroxyethyl (meth)acrylate, 2-hydroxypropyl (meth)acrylate, 2-hydroxybutyl (meth)acrylate, 4-hydroxybutyl (meth)acrylate, pentaerythritol tri(meth)acrylate, dipentaerythritol tetra(meth)acrylate, and dipentaerythritol penta(meth)acrylate. Examples of hydroxyl group-containing (meth)acrylates containing alicyclic hydrocarbon groups include 4-(hydroxymethyl)cyclohexylmethyl (meth)acrylate. Examples of hydroxyl group-containing (meth)acrylates that include aromatic hydrocarbon groups include hydroxyphenyl (meth)acrylate.

[0079] Examples of isocyanate group-containing (meth)acrylates include 2-isocyanatoethyl (meth)acrylate, 2-(2-(meth)acryloyloxyethyl oxy)ethyl isocyanate, and 1,1-(bis(meth)acryloyloxymethyl)ethyl isocyanate.

[0080] Examples of component (c2) include bifunctional (meth)acrylamides (N,N'-diacryl-4,7,10-trioxa-1,13-tridecanediamine, etc.), trifunctional (meth)acrylamides (N,N',N''-triacryloyldiethylenetriamine, 1,3,5-triacryloylhexahydro-1,3,5-triazine, etc.), and tetrafunctional (meth)acrylamides (N,N'-{[(2-acrylamide-2-[(3-acrylamidepropoxy)methyl]propane-1,3-diyl)bis(oxy)]bis(propane-1,3-diyl)}diacrylamide, N,N',N'',N'''-tetraacryloyltriethylenetetramine, etc.).

[0081] (C) The component may be a commercially available product. Examples of such products include pentaerythritol poly(meth)acrylate (product names "Aronics M-933", "Aronics M-934", "Aronics M-306", "Aronics M-305", manufactured by Toagosei Co., Ltd.), glycerin poly(meth)acrylate (product names "Aronics M-920", "Aronics M-930", manufactured by Toagosei Co., Ltd.), ditrimethylolpropanetetra(meth)acrylate (product name "Aronics M-408", manufactured by Toagosei Co., Ltd.), and N,N'-{[(2-acrylamide-2-[(3-acrylamidepropoxy)methyl]propane-1,3-diyl)bis(oxy)]bis(propane-1,3-diyl)}diacrylamide (product name "FAM-401", manufactured by Fujifilm Corporation).

[0082] Substances exemplified as component (C) and substances known as component (C) may be used individually or in combination of two or more types.

[0083] Examples of upper limits for the hydroxyl value (mgKOH / g) of component (c1) include 800, 700, 600, 500, 450, 400, 350, 300, 250, 200, 150, 100, 50, 25, and 10, while examples of lower limits include 700, 600, 500, 450, 400, 350, 300, 250, 200, 150, 100, 50, 25, 10, and 0. The higher the hydroxyl value (mgKOH / g) of component (c1) a component contains, the better the Sq value, which represents the surface roughness suppression of the cured product of the aqueous emulsion composition tends to be. Furthermore, if the curing method of the aqueous emulsion composition is thermal curing and a certain temperature and time can be applied, even with low hydroxyl value (c1) components, the Sq value, which represents the surface roughness suppression of the cured product of the aqueous emulsion composition, will be good. The component (c1) is preferable because it results in a good Sq value, which represents the ability to suppress surface irregularities in the cured product of the aqueous emulsion composition, regardless of the curing method.

[0084] Examples of the upper limit for the number of (meth)acryloyl groups in component (C) include 30, 25, 20, 15, 10, 9, 8, 7, 6, 5, 4, and 3, while examples of the lower limit include 25, 20, 15, 10, 9, 8, 7, 6, 5, 4, 3, and 2. In one embodiment, the number of (meth)acryloyl groups in component (C) is preferably 2 to 30.

[0085] The upper limits for the content ratio (mass ratio, based on solid content, [(A) component / (C) component]) of component (A) to component (C) are 99 / 1, 95 / 5, 90 / 10, 85 / 15, 80 / 20, 75 / 25, 70 / 30, 65 / 35, 60 / 40, 55 / 45, 50 / 50, 45 / 55, 40 / 60, 35 / 65, 30 / 70, 25 / 75, 20 / 80, 15 Examples of lower limits include 85 / 85, 10 / 90, 5 / 95, etc., and examples of lower limits include 95 / 5, 90 / 10, 85 / 15, 80 / 20, 75 / 25, 70 / 30, 65 / 35, 60 / 40, 55 / 45, 50 / 50, 45 / 55, 40 / 60, 35 / 65, 30 / 70, 25 / 75, 20 / 80, 15 / 85, 10 / 90, 5 / 95, 1 / 99, etc. In one embodiment, the content ratio (mass ratio, in terms of solid content, [component (A) / component (C)]) of component (A) to component (C) is preferably about 1 / 99 to 60 / 40, more preferably about 1 / 99 to 50 / 50, and even more preferably about 5 / 95 to 45 / 55.

[0086] The upper limits for the content ratio (mass ratio, based on solid content, [(B) component / (C) component]) of component (B) to component (C) are 99 / 1, 95 / 5, 90 / 10, 85 / 15, 80 / 20, 75 / 25, 70 / 30, 65 / 35, 60 / 40, 55 / 45, 50 / 50, 45 / 55, 40 / 60, 35 / 65, 30 / 70, 25 / 75, 20 / 80, 15 Examples of lower limits include 85 / 85, 10 / 90, 5 / 95, etc., and examples of lower limits include 95 / 5, 90 / 10, 85 / 15, 80 / 20, 75 / 25, 70 / 30, 65 / 35, 60 / 40, 55 / 45, 50 / 50, 45 / 55, 40 / 60, 35 / 65, 30 / 70, 25 / 75, 20 / 80, 15 / 85, 10 / 90, 5 / 95, 1 / 99, etc. In one embodiment, the content ratio (mass ratio, in terms of solid content, [component (B) / component (C)]) of component (B) to component (C) is preferably around 5 / 95 to 99 / 1, more preferably around 10 / 90 to 99 / 1, and even more preferably around 20 / 80 to 99 / 1.

[0087] Examples of upper limits for the content of component (C) (on a solid content basis) relative to 100% by mass (on a solid content basis) of the total amount of components (A), (B), and (C) include 98, 95, 90, 85, 80, 75, 70, 65, 60, 55, 50, 45, 40, 35, 30, 25, 20, 15, 10, and 5% by mass, while examples of lower limits include 95, 90, 85, 80, 75, 70, 65, 60, 55, 50, 45, 40, 35, 30, 25, 20, 15, 10, and 5% by mass. In one embodiment, the content of component (C) in relation to the total amount of components (A), (B), and (C) (in terms of solid content) is preferably about 1 to 80% by mass, more preferably about 1 to 70% by mass, even more preferably about 1 to 60% by mass, and most preferably about 1 to 55% by mass.

[0088] Examples of upper limits for the sum of the content of component (a2) and component (C) (on a solid content basis) relative to 100% by mass (on a solid content basis) of the total amount of component (A), component (B), and component (C) include 98, 95, 90, 85, 80, 75, 70, 65, 60, 55, 50, 45, 40, 35, 30, 25, 20, 15, 10, and 5% by mass, while examples of lower limits include 95, 90, 85, 80, 75, 70, 65, 60, 55, 50, 45, 40, 35, 30, 25, 20, 15, 10, and 5% by mass. In one embodiment, the sum of the content of component (a2) and component (C) (on a solid content basis) relative to the total amount of component (A), component (B), and component (C) is preferably about 1 to 80% by mass, more preferably about 1 to 75% by mass, and even more preferably about 1 to 70% by mass. By achieving a blending ratio that satisfies the above, a cured film exhibiting good solvent resistance, easy peelability, and silicone migration can be obtained. Furthermore, even if an excess amount of component (a2) is added that exceeds the preferred molar ratio of the hydroxyl groups of component (a1), component (a2), component (a3), and component (a4) (hydroxyl groups of component (a1) / hydroxyl groups of component (a2) / hydroxyl groups of component (a3) ​​ / isocyanate groups of component (a4)), the good solvent resistance, easy peelability, and silicone migration properties of the cured film can be maintained by keeping the sum of the content of component (a2) and component (C) (on a solid content basis) in 100% by mass (on a solid content basis) of the total amount of components (A), (B), and (C) within the above range.

[0089] <(D) component> The aqueous emulsion composition of this disclosure may include a photopolymerization initiator (D) (also referred to as "component (D)" in this disclosure).

[0090] Examples of component (D) include radical-type photopolymerization initiators and anionic-type photopolymerization initiators. Examples of radical-type photopolymerization initiators include alkylphenone-type photopolymerization initiators, acylphosphine oxide-type photopolymerization initiators, hydrogen abstraction-type photopolymerization initiators, and oxime ester-type photopolymerization initiators. Examples of alkylphenone-type photopolymerization initiators include benzyldimethyl ketals such as 2,2-dimethoxy-1,2-diphenylethane-1-one, α-hydroxyalkylphenones such as 1-[4-(2-hydroxyethoxy)-phenyl]-2-hydroxy-2-methyl-1-propan-1-one, 2-hydroxy-1-{4-[4-(2-hydroxy-2-methylpropionyl)-benzyl]phenyl}-2-methyl-propan-1-one, and 1-hydroxycyclohexyl-phenyl ketone, and α-aminoalkylphenones such as 2-methyl-1-(4-methylthiophenyl)-2-morpholinopropan-1-one, 2-benzyl-2-dimethylamino-1-(4-morpholinophenyl)-1-butanone, and 2-(dimethylamino)-2-[(4-methylphenyl)methyl]-1-[4-(4-morpholinyl)phenyl]-1-butanone. Examples of acylphosphine oxide type photopolymerization initiators include 2,4,6-trimethylbenzoyl-diphenyl-phosphine oxide and bis(2,4,6-trimethylbenzoyl)-phenylphosphine oxide. Examples of hydrogen abstraction type photopolymerization initiators include phenylglyoxylic acid methyl ester. Examples of oxime ester type photopolymerization initiators include 1,2-octanedione, 1-[4-(phenylthio)-,2-(O-benzoyl oxime)], ethanone, 1-[9-ethyl-6-(2-methylbenzoyl)-9H-carbazole-3-yl]-,1-(O-acetyl oxime). Examples of anionic photopolymerization initiators include cobaltamine complexes, o-nitrobenzyl alcohol carbamate ester, and oxime esters.

[0091] Substances exemplified as component (D) and substances known as component (D) can be used individually or in combination of two or more.

[0092] Component (D) is preferably a radical-type photopolymerization initiator, more preferably an alkylphenone-type photopolymerization initiator, and even more preferably α-hydroxyalkylphenone and / or α-aminoalkylphenone, and is particularly preferably one or more selected from the group consisting of 1-[4-(2-hydroxyethoxy)-phenyl]-2-hydroxy-2-methyl-1-propan-1-one, 2-hydroxy-1-{4-[4-(2-hydroxy-2-methylpropionyl)-benzyl]phenyl}-2-methyl-propan-1-one, 1-hydroxycyclohexyl-phenyl-ketone and 2-methyl-1-(4-methylthiophenyl)-2-morpholinopropan-1-one.

[0093] (D) A commercially available product may be used as the component. The products in question are not limited to, but include, 2,2-dimethoxy-1,2-diphenylethane-1-one (product name "Omnirad 651", manufactured by IGM Resins), 1-[4-(2-hydroxyethoxy)-phenyl]-2-hydroxy-2-methyl-1-propane-1-one (product name "Omnirad 2959", manufactured by IGM Resins), 2-hydroxy-1-{4-[4-(2-hydroxy-2-methylpropionyl)-benzyl]phenyl}-2-methyl-propane-1-one (product name "Omnirad 127", manufactured by IGM Resins), 1-hydroxycyclohexyl-phenyl ketone (product name "Omnirad 184", manufactured by IGM Resins), and 2-methyl-1-(4-methylthiophenyl)-2-morpholinopropane-1-one (product name "Omnirad 907", manufactured by IGM Resins). (Manufactured by IGM Resins), 2-benzyl-2-dimethylamino-1-(4-morpholinophenyl)-1-butanone (product name "Omnirad 369E", manufactured by IGM Resins), 2-(dimethylamino)-2-[(4-methylphenyl)methyl]-1-[4-(4-morpholinyl)phenyl]-1-butanone (product name "Omnirad 379EG", manufactured by IGM Resins), 2,4,6-trimethylbenzoyl-diphenyl-phosphine oxide (product name "Omnirad TPO H", manufactured by IGM Resins), bis(2,4,6-trimethylbenzoyl)-phenylphosphine oxide (product name "Omnirad 819", manufactured by IGM Resins), phenylglyoxylic acid methyl ester (product name "Omnirad MBF", manufactured by IGM Resins) Examples include 1,2-octanedione,1-[4-(phenylthio)-,2-(O-benzoyloxime)] (product name "IRGACURE OXE 01", manufactured by BASF Japan Ltd.), 1-[9-ethyl-6-(2-methylbenzoyl)-9H-carbazol-3-yl]-,1-(O-acetyloxime) (product name "IRGACURE OXE 02", manufactured by BASF Japan Ltd.), etc.

[0094] The upper limits for the content ratio (mass ratio, based on solid content, [(A) component / (D) component]) of component (A) to component (D) are 99 / 1, 95 / 5, 90 / 10, 85 / 15, 80 / 20, 75 / 25, 70 / 30, 65 / 35, 60 / 40, 55 / 45, 50 / 50, 45 / 55, 40 / 60, 35 / 65, 30 / Examples of ratios include 70, 25 / 75, 20 / 80, and lower limits include 95 / 5, 90 / 10, 85 / 15, 80 / 20, 75 / 25, 70 / 30, 65 / 35, 60 / 40, 55 / 45, 50 / 50, 45 / 55, 40 / 60, 35 / 65, 30 / 70, 25 / 75, 20 / 80, 15 / 85, and so on. In one embodiment, the content ratio (mass ratio, in terms of solid content, [component (A) / component (D)]) of component (A) to component (D) is preferably about 15 / 85 to 99 / 1, more preferably about 15 / 85 to 95 / 5, and even more preferably about 15 / 85 to 90 / 10.

[0095] The upper limits for the content ratio (mass ratio, based on solid content, [(B) component / (D) component]) of component (B) to component (D) are 99 / 1, 95 / 5, 90 / 10, 85 / 15, 80 / 20, 75 / 25, 70 / 30, 65 / 35, 60 / 40, 55 / 45, 50 / 50, 45 / 55, 40 / 60, 35 / 65, 30 / 70, 25 / 75, 20 / 80, 15 Examples of lower limits include 85 / 85, 10 / 90, 5 / 95, etc., and examples of lower limits include 95 / 5, 90 / 10, 85 / 15, 80 / 20, 75 / 25, 70 / 30, 65 / 35, 60 / 40, 55 / 45, 50 / 50, 45 / 55, 40 / 60, 35 / 65, 30 / 70, 25 / 75, 20 / 80, 15 / 85, 10 / 90, 5 / 95, 1 / 99, etc. In one embodiment, the content ratio (mass ratio, in terms of solid content, [component (B) / component (D)]) of component (B) to component (D) is preferably about 40 / 60 to 99 / 1, more preferably about 45 / 55 to 95 / 5, and even more preferably about 50 / 50 to 95 / 5.

[0096] The upper limits for the content ratio (mass ratio, based on solid content, [(C) component / (D) component]) of component (C) to component (D) are 95 / 5, 90 / 10, 85 / 15, 80 / 20, 75 / 25, 70 / 30, 65 / 35, 60 / 40, 55 / 45, 50 / 50, 45 / 55, 40 / 60, 35 / 65, 30 / 70, 25 / 75, 20 / Examples of ratios include 80, 15 / 85, 10 / 90, and lower limits include 90 / 10, 85 / 15, 80 / 20, 75 / 25, 70 / 30, 65 / 35, 60 / 40, 55 / 45, 50 / 50, 45 / 55, 40 / 60, 35 / 65, 30 / 70, 25 / 75, 20 / 80, 15 / 85, 10 / 90, 5 / 95, and so on. In one embodiment, the content ratio (mass ratio, on a solid content basis, [component (C) / component (D)]) of component (C) to component (D) is preferably around 5 / 95 to 95 / 5, and more preferably around 10 / 90 to 95 / 5.

[0097] Examples of upper limits for the content of component (D) (on a solid content basis) relative to 100% by mass (on a solid content basis) of the total amount of components (A), (B), and (C) include 50, 45, 40, 35, 30, 25, 20, 15, 10, 5, 3, 2, 1, and 0.5% by mass, while examples of lower limits include 45, 40, 35, 30, 25, 20, 15, 10, 5, 3, 2, 1, 0.5, and 0% by mass. In one embodiment, the content of component (D) (on a solid content basis) relative to 100% by mass (on a solid content basis) of the total amount of components (A), (B), and (C) is preferably about 2 to 25% by mass.

[0098] <(E) component> The aqueous emulsion composition of this disclosure may contain an organic diluent (E) (also referred to as "component (E)" in this disclosure). Examples of component (E) include monofunctional monomers and organic solvents.

[0099] Examples of monofunctional monomers include (meth)acrylates having alkyl groups with 1 to 30 carbon atoms, (meth)acrylates having alicyclic structures with 3 to 30 carbon atoms, (meth)acrylates having aromatic structures with 6 to 30 carbon atoms, (meth)acrylates having heterocyclic structures with 3 to 30 carbon atoms, and vinyl compounds with 2 to 30 carbon atoms. Examples of (meth)acrylates having alkyl groups with 1 to 30 carbon atoms include methyl (meth)acrylate, ethyl (meth)acrylate, n-propyl (meth)acrylate, isopropyl (meth)acrylate, n-butyl (meth)acrylate, isobutyl (meth)acrylate, t-butyl (meth)acrylate, n-pentyl (meth)acrylate, 2-ethylhexyl (meth)acrylate, n-hexyl acrylate, n-octyl (meth)acrylate, isooctyl (meth)acrylate, nonyl (meth)acrylate, isononyl (meth)acrylate, decyl (meth)acrylate, isodecyl (meth)acrylate, n-dodecyl acrylate, lauryl (meth)acrylate, cetyl (meth)acrylate, stearyl (meth)acrylate, isostearyl (meth)acrylate, and behenyl (meth)acrylate. Examples of (meth)acrylates having an alicyclic structure with 3 to 30 carbon atoms include isobornyl (meth)acrylate, dicyclopentenyl (meth)acrylate, dicyclopentanyl (meth)acrylate, dicyclopentenyloxyethyl (meth)acrylate, adamantane (meth)acrylate, and cyclohexyl acrylate. Examples of (meth)acrylates having an aromatic structure with 6 to 30 carbon atoms include phenoxyethyl (meth)acrylate and benzyl (meth)acrylate. Examples of (meth)acrylates having a heterocyclic structure with 3 to 30 carbon atoms include tetrahydrofurfuryl (meth)acrylate. Examples of vinyl compounds having 2 to 30 carbon atoms include styrene, hydroxyethyl vinyl ether, hydroxybutyl vinyl ether, N-vinylformamide, N-vinylpyrrolidone, and N-vinylcaprolactam.

[0100] Examples of organic solvents include ketone solvents, aromatic solvents, alcohol solvents, glycol solvents, glycol ether solvents, ester solvents, petroleum-based solvents, haloalkane solvents, and amide solvents. Examples of ketone solvents include methyl ethyl ketone, acetylacetone, methyl isobutyl ketone, cyclopentanone, and cyclohexanone. Examples of aromatic solvents include toluene and xylene. Examples of alcohol solvents include methanol, ethanol, n-propanol, isopropanol, and butanol. Examples of glycol solvents include ethylene glycol, propylene glycol, diethylene glycol, dipropylene glycol, triethylene glycol, tripropylene glycol, polyethylene glycol, and polypropylene glycol. Examples of glycol ether solvents include ethylene glycol dimethyl ether, ethylene glycol diethyl ether, propylene glycol dimethyl ether, propylene glycol diethyl ether, diethylene glycol dimethyl ether, triethylene glycol dimethyl ether, diethylene glycol methyl ethyl ether, diethylene glycol diethyl ether, propylene glycol monomethyl ether, ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol mono-n-propyl ether, ethylene glycol monoisopropyl ether, ethylene glycol mono-n-butyl ether, ethylene glycol monoisobutyl ether, and ethylene glycol mono-t-butyl ether. Examples of ester solvents include alkyl acetate (ethyl acetate, butyl acetate, etc.), methyl cellosolve acetate, ethyl cellosolve acetate, and propylene glycol monomethyl ether acetate. Examples of petroleum-based solvents include Solvesso #100 (manufactured by Exxon Technologies) and Solvesso #150 (manufactured by Exxon Technologies). Examples of haloalkane solvents include chloroform. Examples of amide solvents include dimethylformamide.

[0101] The substances exemplified as organic diluents and known organic diluents can be used individually or in combination of two or more. Among the components of (E), one or more selected from (meth)acrylates having an alkyl group with 1 to 30 carbon atoms, (meth)acrylates having an alicyclic structure with 3 to 30 carbon atoms, (meth)acrylates having an aromatic structure with 6 to 30 carbon atoms, and ester solvents are preferred due to their good miscibility with components having polysiloxane chains and polyalkylene glycol chains; one or more selected from (meth)acrylates having an alkyl group with 4 to 18 carbon atoms, (meth)acrylates having an alicyclic structure with 4 to 18 carbon atoms, (meth)acrylates having an aromatic structure with 6 to 18 carbon atoms, and ester solvents are more preferred; one or more selected from (meth)acrylates having an alkyl group with 6 to 15 carbon atoms, (meth)acrylates having an alicyclic structure with 6 to 15 carbon atoms, (meth)acrylates having an aromatic structure with 6 to 18 carbon atoms, and ester solvents having an alkyl group with 1 to 10 carbon atoms are even more preferred due to their good miscibility with components having an alkyl group with 8 to 12 carbon atoms. One or more selected from ester solvents having a kill group (meth)acrylate, an alicyclic structure with 8 to 12 carbon atoms, an aromatic structure with 6 to 12 carbon atoms, and an alkyl group having 1 to 10 carbon atoms which may have an ether linkage is particularly preferred; one or more selected from ester solvents having an alkyl group having 10 to 12 carbon atoms, an alicyclic structure with 10 to 12 carbon atoms, an aromatic structure with 10 to 12 carbon atoms, and an alkyl group having 1 to 10 carbon atoms which may have an ether linkage is more particularly preferred; and one or more selected from alkyl acetate having an alkyl group having 10 to 12 carbon atoms, an alicyclic structure with 10 to 12 carbon atoms, an aromatic structure with 10 to 12 carbon atoms, and an alkyl group having 1 to 10 carbon atoms is even more particularly preferred.

[0102] Examples of the upper limit of the number of carbon atoms in component (E) include 30, 25, 20, 18, 15, 12, 10, 8, 6, 5, 4, 3, and 2, while examples of the lower limit include 25, 20, 18, 15, 12, 10, 8, 6, 5, 4, 3, 2, and 1. In one embodiment, the number of carbon atoms in component (E) is preferably 1 to 30.

[0103] Examples of upper limits for the content ratio (mass ratio, [(E) component / water]) of component (E) to water include 25 / 75, 20 / 80, 15 / 85, 10 / 90, 5 / 95, 1 / 99, 0.5 / 99.5, etc., and examples of lower limits include 20 / 80, 15 / 85, 10 / 90, 5 / 95, 1 / 99, 0.5 / 99.5, 0.1 / 99.9, etc. In one embodiment, the content ratio (mass ratio, [(E) component / water]) of component (E) to water is preferably around 0.1 / 99.9 to 25 / 75, and more preferably around 0.5 / 99.5 to 20 / 80.

[0104] Examples of upper limits for the content ratio (mass ratio [solids of the aqueous emulsion composition / organic diluent]) of the organic diluent to the solids of the aqueous emulsion composition of the present disclosure include 99 / 1, 95 / 5, 90 / 10, 80 / 20, 70 / 30, 60 / 40, 50 / 50, 40 / 60, 30 / 70, 20 / 80, 10 / 90, 5 / 95, etc., and examples of lower limits include 95 / 5, 90 / 10, 80 / 20, 70 / 30, 60 / 40, 50 / 50, 40 / 60, 30 / 70, 20 / 80, 10 / 90, 5 / 95, 1 / 99, etc. In one embodiment, the ratio of the content of the organic diluent to the solid content of the aqueous emulsion composition of the present disclosure (mass ratio, [solid content of the aqueous emulsion composition of the present disclosure / organic diluent]) is preferably about 40 / 60 to 99 / 1, and more preferably about 50 / 50 to 99 / 1.

[0105] <Other ingredients that can be added> The aqueous emulsion compositions disclosed herein may further contain, as needed, various additives such as binder resins other than those exemplified above (acrylic resins, urethane resins, polyester resins, epoxy resins, alkyd resins, etc.), emulsifiers, anti-slip agents, slip agents, preservatives, rust inhibitors, pH adjusters, pigments, dyes, lubricants, leveling agents, catalysts, defoamers, and photosensitizers (amines, quinones, etc.).

[0106] <Method for preparing an aqueous emulsion composition> The method for preparing the aqueous emulsion composition disclosed herein is as follows: (1) A method using only the emulsion of component (A), (2) A method of mixing an emulsion of component (A) with an emulsion containing components (B), (C), and (D), (3) A method of mixing an emulsion of component (A) with an emulsion containing component (B) and component (C), (4) A method of mixing an emulsion of component (A) with component (C), (5) A method of mixing an emulsion of component (A) with component (D), (6) A method using an emulsion containing component (A), component (B), component (C), and component (D). (7) A method of mixing an emulsion containing component (A) and component (C) with component (D). Examples include the following. In these methods (1) to (7), it is also possible to add leveling agents and component (E) as needed. Furthermore, examples of methods for producing each emulsion include adding water to a resin liquid (X) containing components (A) and / or (B) and kneading at approximately 20-70°C, and adding an emulsifier and water to a resin liquid (Y) containing component (C) and kneading at approximately 20-70°C. Components (X) and (Y) may also contain components (A), (B), (C), (D), (E), leveling agents, and various other additives, and if the aforementioned components are water-soluble, they may be added after the emulsion is produced. In addition, the water and emulsifier added during kneading may be added as a single addition before kneading, or they may be added in multiple stages, including additions during kneading. An aqueous emulsion composition can be obtained by using the resulting emulsion composition as is or by dispersing it in water.

[0107] When adding an excess amount of component (a2) in excess of the molar ratio of the hydroxyl groups of component (a1), component (a2), component (a3), and component (a4) (hydroxyl groups of component (a1) / hydroxyl groups of component (a2) / hydroxyl groups of component (a3) ​​ / isocyanate groups of component (a4)), it is preferable to adjust the content of component (C) so that it equals the sum of the content of component (a2) and component (C) (on a solid content basis) in 100% by mass (on a solid content basis) of the total amount of the preferred components (A), (B), and (C) mentioned above, and to produce the emulsion by method (6) or (7) because this results in good emulsification and allows the various properties of this disclosure to be exhibited well.

[0108] <Cured products and laminates> This disclosure also provides a cured product of an aqueous emulsion composition. This disclosure also provides a laminate (also referred to as a "release film") comprising a substrate and a cured product of an aqueous emulsion composition. This disclosure also provides a method for manufacturing the laminate, which includes a step of curing an aqueous emulsion composition coated on at least one side of a substrate with active energy rays and / or heat.

[0109] Examples of substrates to which the aqueous emulsion composition of this disclosure is applied include glass substrates, metal substrates, and plastic substrates. Examples of plastic substrates include thermoplastic substrates and thermosetting plastic substrates. Examples of thermoplastic substrates include general-purpose plastic substrates and engineering plastic substrates. Examples of general-purpose plastic substrates include olefin-based, polyester-based, acrylic-based, vinyl-based, and polystyrene-based materials. Examples of olefin-based materials include polyethylene, polypropylene, and norbornene. Examples of polyester-based materials include polyethylene terephthalate (PET) and polyethylene naphthalate (PEN). Examples of acrylic-based materials include polymethyl methacrylate (PMMA). Examples of vinyl-based materials include polyvinyl chloride, polyvinylidene chloride, and polyvinyl alcohol. Examples of polystyrene-based materials include polystyrene (PS) resin, styrene-acrylonitrile (AS) resin, and styrene-butadiene-acrylonitrile (ABS) resin. Examples of engineering plastic substrates include general-purpose engineering plastics and super engineering plastics. Examples of general-purpose engineering plastics include polycarbonate and polyamide (nylon). Examples of super engineering plastics include polyetheretherketone (PEEK). Examples of thermosetting plastic substrates include polyimide, epoxy resin, and melamine resin. Examples of other plastic substrates include triacetylcellulose resin. The substrate may also be surface-treated (e.g., corona discharge). Furthermore, other layers (e.g., an easy-adhesion layer, an anchor layer, etc.) may be provided between one or both sides of the substrate and the layer formed by the aqueous emulsion composition of this disclosure. The thickness of the substrate is not particularly limited, but is typically around 1 to 200 μm.

[0110] Examples of methods for applying the aqueous emulsion composition of the present disclosure onto a substrate include roll coater coating, reverse roll coater coating, bar coater coating, Mayer bar coating, air knife coating, gravure coating, reverse gravure coating, offset printing, flexographic printing, screen printing, etc. Although the coating amount is not particularly limited, usually, the mass after drying is in the range of 0.01 to 20 g / m 2 and preferably in the range of 0.025 to 10 g / m 2 and more preferably in the range of 0.05 to 5 g / m 2 . Further, the film thickness of the cured product of the aqueous emulsion composition of the present disclosure is about 0.05 to 10 μm.

[0111] Examples of the method of curing by irradiation with active energy rays include using a high-pressure mercury lamp, an ultra-high pressure mercury lamp, a carbon arc lamp, a metal halide lamp, a xenon lamp, a chemical lamp, an electrodeless discharge lamp or an LED that emits light in the wavelength range of 150 nm or more and 450 nm or less, and irradiating at about 10 mJ / cm 2 or more and 10,000 mJ / cm 2 or less. Before irradiation with active energy rays, heating may be performed as necessary to dry. After irradiation with active energy rays, heating may be performed as necessary to completely cure. Examples of the heating conditions are about 60 to 150°C for about 1 second to 30 minutes, and preferably about 70 to 130°C for about 5 seconds to 10 minutes. Further, examples of the method of curing by heating are about 150 to 250°C for about 1 second to 30 minutes, and preferably about 170 to 220°C for about 30 seconds to 20 minutes.

[0112] The laminate of the present disclosure may be subjected to a curing treatment as necessary. The conditions are not particularly limited, but are about 20 to 50°C for about 1 to 24 hours. By doing so, the solvent resistance of the cured product becomes better.

[0113] Since the cured product of the aqueous emulsion composition disclosed herein exhibits excellent release properties, the aqueous emulsion composition disclosed herein can be used as a release coating agent. Therefore, a laminate comprising the cured product of the release coating agent disclosed herein (also referred to herein as the "release layer") and a substrate can be used as a release film. The release layer can exhibit easy peeling and solvent resistance. Therefore, materials containing a large amount of organic solvents, such as casting solutions for resin molded products or inorganic slurries, can be applied to the release film.

[0114] The release film of this disclosure can be used as an adhesive tape by applying an adhesive layer to the side opposite the release layer. Furthermore, the release film of this disclosure is also useful as a protective film (separator) for adhesive surfaces and adhesive surfaces of adhesive tapes, adhesive tapes, double-sided tapes, adhesive labels, seals, etc., as well as as a process film used in the manufacture of resin molded products, synthetic leather, decorative panels, carbon fiber prepregs, electrical and electronic components, etc. The release film of this disclosure has a cured product that can suppress silicone migration. Therefore, it is particularly useful in applications where the occurrence of defects due to silicone migration from the cured product is particularly undesirable, such as as a process film or process tape (e.g., separator, carrier film (tape), transfer film, protective tape, etc.) for the manufacture of electrical and electronic materials. In this disclosure, electrical and electronic materials refer to components that make up products with electronic circuits, such as personal computers, mobile phones, liquid crystal displays, refrigerators, automobiles, etc.

[0115] Furthermore, since the release film of this disclosure suppresses the formation of fine irregularities on the surface of the release layer, these irregularities are not transferred to the material, making it possible to achieve a mirror-like, high-quality material surface. Therefore, it is useful for separators, carrier films (tapes), transfer films, protective tapes, and the like.

[0116] Furthermore, the aqueous emulsion composition disclosed herein may be used in various applications that can exhibit the effects it provides. [Examples]

[0117] The following examples illustrate specific examples of this disclosure, but this disclosure is not limited to these examples. In the examples, parts and percentages are all on a mass basis unless otherwise specified.

[0118] <Synthesis Example 1: Synthesis of (A-1)> In a reaction vessel equipped with a stirrer and a condenser, 100.0 parts of isocyanurate-modified hexamethylene diisocyanate (manufactured by Tosoh Corporation, trade name "Coronate HXR"), 17.8 parts of polydimethylsiloxane containing a hydroxyl group at one end (manufactured by JNC Corporation, trade name "Sylaplane FM-0411"), 33.8 parts of polyethylene glycol monomethyl ether (manufactured by NOF Corporation, trade name "Uniox M-400"), 84.7 parts of polyethylene glycol monomethyl ether (manufactured by NOF Corporation, trade name "Uniox M-1000"), 0.04 parts of 4-methoxyphenol, 161.9 parts of isobornyl acrylate, and 0.25 parts of tin octylate were charged. The temperature in the system was then raised to 70°C over approximately 15 minutes. Subsequently, the reaction system was maintained at the same temperature for 1.5 hours, and then cooled to 60°C. Then, 185.5 parts of pentaerythritol polyacrylate (manufactured by Toagosei Co., Ltd., trade name "Aronics M-305") with a hydroxyl value of 115 mg KOH / g and 0.13 parts of tin octylate were charged, and the temperature in the system was raised to 75°C over approximately 15 minutes. Next, the reaction system was maintained at the same temperature for 1 hour, after which 0.02 parts of 4-methoxyphenol were charged, and the system was cooled to obtain urethane (meth)acrylate (A-1). (A-1) is a mixture with isobornyl acrylate.

[0119] <Synthesis Example 2: Synthesis of (A-2)> In a reaction vessel equipped with a stirrer and a condenser, 100.0 parts of isocyanurate-modified hexamethylene diisocyanate (manufactured by Tosoh Corporation, trade name "Coronate HXR"), 17.8 parts of polydimethylsiloxane containing a hydroxyl group at one end (manufactured by JNC Corporation, trade name "Sylaplane FM-0411"), 33.8 parts of polyethylene glycol monomethyl ether (manufactured by NOF Corporation, trade name "Uniox M-400"), 67.6 parts of polyethylene glycol monomethyl ether (manufactured by NOF Corporation, trade name "Uniox M-1000"), 0.04 parts of 4-methoxyphenol, 162.2 parts of isobornyl acrylate, and 0.25 parts of tin octylate were charged. The temperature in the system was then raised to 70°C over approximately 15 minutes. Subsequently, the reaction system was maintained at the same temperature for 1.5 hours, and then cooled to 60°C. Then, 185.5 parts of pentaerythritol polyacrylate (manufactured by Toagosei Co., Ltd., trade name "Aronics M-305") with a hydroxyl value of 115 mg KOH / g and 0.13 parts of tin octylate were charged, and the temperature in the system was raised to 75°C over approximately 15 minutes. Next, the reaction system was maintained at the same temperature for 1 hour, after which 0.02 parts of 4-methoxyphenol were charged, and the system was cooled to obtain urethane (meth)acrylate (A-2). (A-2) is a mixture with isobornyl acrylate.

[0120] <Synthesis Examples 3-5: Synthesis of (A-3)-(A-5)> Urethane (meth)acrylates (A-3) to (A-5) were obtained by following the same procedure as in Synthesis Example 2, except for the formulations shown in Table 1. Urethane (meth)acrylate (A-3) is a mixture with 2-EHA, urethane (meth)acrylate (A-4) is a mixture with butyl acetate, and urethane (meth)acrylate (A-5) is a mixture with propylene glycol monomethyl ether acetate.

[0121] <Synthesis Example 6: Synthesis of (A-6)> The butyl acetate was removed from urethane (meth)acrylate (A-4) under reduced pressure to obtain urethane (meth)acrylate (A-6) that does not contain component (E).

[0122] <Comparative Synthesis Example 1: Synthesis of (A-C1)> In a reaction vessel equipped with a stirrer and a condenser, 122.9 parts of isocyanurate-modified hexamethylene diisocyanate (manufactured by Tosoh Corporation, trade name "Coronate HXR"), 21.8 parts of polydimethylsiloxane containing a hydroxyl group at one end (manufactured by JNC Corporation, trade name "Sylaplane FM-0411"), 41.6 parts of polyethylene glycol monomethyl ether (manufactured by NOF Corporation, trade name "Uniox M-400"), 83.1 parts of polyethylene glycol monomethyl ether (manufactured by NOF Corporation, trade name "Uniox M-1000"), 0.04 parts of 4-methoxyphenol, 120.0 parts of isobornyl acrylate, and 0.25 parts of tin octylate were charged. The temperature in the system was then raised to 70°C over approximately 15 minutes. Subsequently, the reaction system was maintained at the same temperature for 1.5 hours, and then cooled to 60°C. Then, 30.0 parts of 2-propanol and 0.13 parts of tin octylate were added, and the temperature in the system was raised to 75°C over approximately 15 minutes. Next, the reaction system was maintained at the same temperature for 1 hour, after which 0.02 parts of 4-methoxyphenol were added, and the system was cooled to obtain urethane (meth)acrylate (A-C1). (A-C1) is a mixture with isobornyl acrylate.

[0123] <Comparative Synthesis Example 2: Synthesis of (A-C2)> In a reaction vessel equipped with a stirrer and a condenser, 14.6 parts of isophorone diisocyanate, 20.7 parts of polydimethylsiloxane containing a hydroxyl group at one end (manufactured by JNC Corporation, trade name "Cylaprene FM-0411"), 0.15 parts of 4-methoxyphenol, 120.0 parts of isobornyl acrylate, and 0.12 parts of tin octate were charged, and the temperature in the system was raised to 70°C over approximately 15 minutes. The reaction system was then maintained at the same temperature for 1.5 hours, and then cooled to 60°C. Next, 196.7 parts of PEG1000 (manufactured by NOF Corporation, trade name "PEG#1000") and 0.12 parts of tin octate were charged, and the temperature in the system was raised to 70°C over approximately 15 minutes. The reaction system was then maintained at the same temperature for 1.5 hours, and then cooled to 60°C. Then, 67.4 parts of 1,1-(bisacryloyloxymethyl)ethyl isocyanate (manufactured by Showa Denko K.K., trade name "Karenz BEI") and 0.06 parts of tin octylate were charged, and the temperature in the system was raised to 75°C over approximately 15 minutes. Subsequently, the reaction system was held at the same temperature for 1 hour, after which 0.15 parts of 4-methoxyphenol were charged, and the system was cooled to obtain urethane (meth)acrylate (A-C2). (A-C2) is a mixture with isobornyl acrylate.

[0124] <Comparative Synthesis Example 3: Synthesis of (A-C3)> Urethane (meth)acrylate (A-C3) was obtained by following the same process as in Comparative Synthesis Example 2, except for the formulation shown in the table. (A-C3) is a mixture with isobornyl acrylate.

[0125] <Comparative Synthesis Example 4: Synthesis of (A-C4)> Using 9.3 parts isophorone diisocyanate, 13.2 parts Cyraprene FM-0411, 0.15 parts 4-methoxyphenol, 120.0 parts isobornyl acrylate, 0.12 parts tin octate, 233.7 parts bifunctional polyester polyol (manufactured by Kuraray Co., Ltd., trade name "Kuraray Polyol P-1010"), 0.12 parts tin octate, 43.1 parts curens BEI, 0.06 parts tin octate, and 0.15 parts 4-methoxyphenol, urethane (meth)acrylate (A-C4) was obtained by the same process as in Comparative Synthesis Example 2. (A-C4) is a mixture with isobornyl acrylate.

[0126] <Comparative Synthesis Example 5: Synthesis of (A-C5)> In a reaction vessel equipped with a stirrer, condenser, dropping funnel, and nitrogen inlet tube, 100 parts of Coronate HXR, 0.3 parts of tin octylate, 182 parts of FM-0411, 347 parts of dipentaerythritol penta / hexaacrylate (manufactured by Toagosei Co., Ltd., trade name "Aronics M-400"), and 629 parts of ethyl acetate were charged. The temperature in the system was then raised to approximately 70 degrees Celsius over approximately 1 hour. The reaction system was then maintained at the same temperature for 3 hours, and after confirming that the isocyanate groups had disappeared, it was cooled to obtain urethane acrylate oligomer (A-C5).

[0127] [Table 1]

[0128] The meanings of the terms in Table 1 are as follows: ': Indicates that it is a comparative component. FM0411: Polydimethylsiloxane containing a hydroxyl group at one end (manufactured by JNC Corporation, product name "Cylaprene FM-0411") M305: Pentaerythritol polyacrylate with a hydroxyl value of 115 mgKOH / g (manufactured by Toagosei Co., Ltd., trade name "Arronix M-305") M400: Dipentaerythritol penta / hexaacrylate (manufactured by Toagosei Co., Ltd., product name "Aronics M-400") BEI: 1,1-(bisacryloyloxymethyl)ethyl isocyanate (manufactured by Showa Denko K.K., product name "Karens BEI") YM400: Polyethylene glycol monomethyl ether (manufactured by NOF Corporation, product name "Uniox M-400") YM1000: Polyethylene glycol monomethyl ether (manufactured by NOF Corporation, product name "Uniox M-1000") PEG1000: Polyethylene glycol (manufactured by NOF Corporation, product name "PEG#1000") PPG1000: Polypropylene glycol (manufactured by ADEKA Corporation, product name "ADEKA Polyether P-1000"). P-1010: Polyester polyol (manufactured by Kuraray Co., Ltd., product name "Kuraray Polyol P-1010") HXR: Isocyanurate-modified hexamethylene diisocyanate (manufactured by Tosoh Corporation, product name "Coronate HXR") IPDI: Isophorone diisocyanate IBOA: Isobornyl acrylate IPA: 2-propanol EAC: Ethyl acetate 2-EHA:2-Ethylhexylacrylate BAC: Butyl acetate PMA: Propylene glycol monomethyl ether acetate

[0129] <Manufacturing Example 1-1: Manufacturing of Emulsion (1-1)> In a reaction vessel equipped with a stirring device and a cooling tube, 28.8 parts of urethane (meth)acrylate (A-1) and 43.2 parts of water were added, the temperature was raised to 60°C over 15 minutes, and the mixture was kneaded for 1 hour to obtain emulsion (1-1). Note that (A-1) is a mixture of component (A2) and isobornyl acrylate, and of the 28.8 parts, 8.0 parts is isobornyl acrylate.

[0130] <Manufacturing Examples 1-2 to 1-6 and Comparative Manufacturing Example 1-C1: Manufacturing of Emulsions (1-2) to 1-6 and Comparative Emulsion (1-C1)> Emulsions (1-2) to (1-6) and comparative emulsion (1-C1) were obtained by following the same process as in Manufacturing Example 1-1, except for the formulations listed in Table 2. Note that component (A) is a mixture with component (E), and the values ​​listed for (A-1), (A-2), (A-3), (A-4), (A-5), (A-6), and (A-C1) in Table 2 are the values ​​obtained by dividing the amount of component (E) by the amount of charge.

[0131] [Table 2]

[0132] The meanings of the terms in Table 2 are as follows: ': Indicates that it is a comparative component. IBOA: Isobornyl acrylate 2-EHA:2-Ethylhexylacrylate BAC: Butyl acetate PMA: Propylene glycol monomethyl ether acetate

[0133] <Synthesis Example 3: Synthesis of (B-1)> In a reaction vessel equipped with a stirrer and a condenser, 42.9 parts of isocyanurate-modified hexamethylene diisocyanate (manufactured by Tosoh Corporation, trade name "Coronate HXR"), 50.7 parts of polyethylene glycol monomethyl ether (manufactured by NOF Corporation, trade name "Uniox M-1000"), 66.3 parts of pentaerythritol polyacrylate with a hydroxyl value of 115 mg KOH / g (manufactured by Toagosei Co., Ltd., trade name "Aronics M-305"), 0.04 parts of tin octylate, and 0.09 parts of 4-methoxyphenol were charged. The temperature in the system was then raised to 70°C over approximately 15 minutes. Subsequently, the reaction system was maintained at the same temperature for 1.5 hours, and then cooled to 60°C. Then, 28.8 parts of pentaerythritol polyacrylate (manufactured by Toagosei Co., Ltd., trade name "Aronics M-305") with a hydroxyl value of 115 mg KOH / g and 0.08 parts of tin octoate were charged, and the temperature in the system was raised to 75°C over approximately 15 minutes. Subsequently, the reaction system was maintained at the same temperature for 1 hour, after which 0.09 parts of 4-methoxyphenol were charged, and the system was cooled to obtain urethane (meth)acrylate (B-1) with a solid content of 100%.

[0134] <Manufacturing Example 2-1: Manufacturing of Emulsion (2-1)> In a reaction vessel equipped with a stirrer and a condenser, 100.5 parts of (B-1), 50.3 parts of ditrimethylolpropanetetraacrylate (manufactured by Toagosei Co., Ltd., trade name "Aronics M-408"), 50.3 parts of pentaerythritol polyacrylate with a hydroxyl value of 275 mgKOH / g (manufactured by Toagosei Co., Ltd., trade name "Aronics M-933"), and 20.3 parts of 1-hydroxycyclohexylphenyl ketone (manufactured by IGM Resins, trade name "OMNIRAD 184") were added, and the mixture was heated to 80°C and mixed for 30 minutes. After that, it was cooled to 40°C, and 221.2 parts of water were added while kneading at 40°C to obtain an emulsion with a solid content of 50%, and then diluted with 110.5 parts of water to obtain emulsion (2-1) with a solid content of 40%.

[0135] <Manufacturing Examples 2-2 to 2-8, 2-10 and Comparative Manufacturing Examples 2-C1 to 2-C4: Manufacturing of emulsions (2-2) to (2-8), (2-10) and comparative emulsions (2-C1) to (2-C4)> Except for the formulations listed in the table, the process was the same as in Manufacturing Example 2-1 to obtain emulsions (2-2) to (2-8), (2-10), and comparative emulsions (2-C1) to (2-C4). In addition, the amount of water necessary to achieve a 50% solid content was added during the kneading process, and the remainder was added all at once to obtain an emulsion with a 40% solid content.

[0136] <Manufacturing Example 2-9: Manufacturing of Emulsion (2-9)> In a reaction vessel equipped with a stirrer and a condenser, 122.9 parts of (B-1), 66.4 parts of ditrimethylolpropanetetraacrylate (manufactured by Toagosei Co., Ltd., trade name "Aronics M-408"), and 31.9 parts of pentaerythritol polyacrylate (manufactured by Toagosei Co., Ltd., trade name "Aronics M-305") with a hydroxyl value of 115 mg KOH / g were added and mixed for 30 minutes. Then, the temperature was raised to 40°C, and the mixture was kneaded at 40°C while adding 331.8 parts of water to obtain emulsion (2-9).

[0137] <Manufacturing Example 2-11: Manufacturing of Emulsion (2-11)> In a reaction vessel equipped with a stirrer and a condenser, 60.5 parts of (B-1), 40.3 parts of 12-mol EO-modified dipentaerythritol hexaacrylate (manufactured by Shin-Nakamura Chemical Industry Co., Ltd., trade name "NK Ester A-DPH-12E"), and 100.8 parts of decafunctional urethane acrylate (manufactured by Nippon Kayaku Co., Ltd., trade name "KAYARAD DPHA-40H") were added, and the mixture was heated to 80°C and mixed for 30 minutes. After that, it was cooled to 40°C, and emulsion (2-11) was obtained by kneading at 40°C while adding 201.6 parts of water.

[0138] [Table 3]

[0139] [Table 4]

[0140] The meanings of the terms in Tables 3 and 4 are as follows: TEGO: Product name "TEGORAD2200N" (manufactured by Evonik) M408: Ditrimethylolpropanetetraacrylate (manufactured by Toagosei Co., Ltd., product name "Arronix M-408") M933: Pentaerythritol polyacrylate with a hydroxyl value of 275 mgKOH / g (manufactured by Toagosei Co., Ltd., trade name "Arronix M-933") M306: Pentaerythritol polyacrylate with a hydroxyl value of 160 mg KOH / g (manufactured by Toagosei Co., Ltd., trade name "Aronics M-306") M920: Glycerin polyacrylate with a hydroxyl value of 240 mgKOH / g (manufactured by Toagosei Co., Ltd., product name "Arronix M-920") M305: Pentaerythritol polyacrylate with a hydroxyl value of 115 mgKOH / g (manufactured by Toagosei Co., Ltd., trade name "Arronix M-305") DPH-12E: 12 molar EO-modified dipentaerythritol hexaacrylate (manufactured by Shin-Nakamura Chemical Industry Co., Ltd., product name "NK Ester A-DPH-12E") DPHA-40H: 10-functional urethane acrylate (manufactured by Nippon Kayaku Co., Ltd., product name "KAYARAD DPHA-40H") 184: 1-Hydroxycyclohexylphenyl ketone (manufactured by IGM Resins, trade name "OMNIRAD 184") 2959: 1-[4-(2-hydroxyethoxy)-phenyl]-2-hydroxymethylpropane (manufactured by IGM Resins, trade name "OMNIRAD 2959") 907: 2-Methyl-1-[4-(methylthio)phenyl]-2-morpholinopropan-1-one (manufactured by IGM Resins, trade name "OMNIRAD 907") 754: A mixture of oxyphenyl-acetyl acid 2-[2-oxo-2-phenylacetoxy-ethoxy]-ethyl ester and oxyphenyl-acetyl acid 2-[2-hydroxy-ethoxy]-ethyl ester (manufactured by IGM Resins, trade name "OMNIRAD 754") IBOA: Isobornyl acrylate EAC: Ethyl acetate

[0141] <Example 1: Aqueous emulsion composition (1)> 72 parts of emulsion (1-1), 553 parts of emulsion (2-1), 5 parts of leveling agent (manufactured by Nisshin Chemical Industry Co., Ltd., trade name "Orphine EXP.4200"), and 375 parts of water were added to a reaction vessel equipped with a stirring device, and the mixture was stirred for 30 minutes to obtain an aqueous emulsion composition (1) with an active ingredient content of 25%.

[0142] <Examples 2-37 and Comparative Examples 1-6: Aqueous emulsion compositions (2)-(37) and (C1)-(C6)> Aqueous emulsion compositions (2) to (37) and (C1) to (C6) were obtained by following the same procedure as in Example 1, except that the formulations were as shown in the table.

[0143] <Performance Evaluation (1): Solvent Resistance Test> Aqueous emulsion compositions (1) to (24), (26) to (37), and (C1) to (C6) were each applied to a polyethylene terephthalate film (100 μm thick) using a bar coater, dried at 80°C for 1 minute, and then irradiated with active energy rays (ultraviolet irradiation, illuminance: 520 mw / cm²). 2Laminates (1) to (24), (26) to (37), and (C1) to (C6) were obtained, respectively. Furthermore, the aqueous emulsion composition (25) was applied to a polyethylene terephthalate film (100 μm thick) using a bar coater and cured by heating at 180°C for 10 minutes to obtain laminate (25). A cotton swab impregnated with isopropanol, ethyl acetate, or toluene was rubbed against the cured surface of each laminate 10 times, and the presence or absence of changes in the cured material was visually observed. The evaluation results for each solvent were then evaluated according to the following criteria. The film thickness of the cured aqueous emulsion composition and the integrated light intensity (mJ / cm²) related to active energy ray irradiation were also evaluated. 2 The values ​​listed in the table were as follows: ○: No change in the cured coating compared to before the test. ×: The cured coating shows scratches, whitening, or exposure of the substrate.

[0144] <Performance Evaluation (2): Peelability Test> The peelability was evaluated using the method described in Example (6) of WO2014 / 109341, which specifies the peel strength of acrylic adhesives. Specifically, the evaluation was performed using the following method. After leaving the laminate obtained by the same method as in performance evaluation (1) unloaded for 3 hours, a 50 mm wide, 150 mm long adhesive tape (Nitto Denko Corporation No. 31B / two-layer structure of acrylic adhesive and polyester film) was pressed onto the cured surface of the laminate using a rubber roll to obtain a sample (polyethylene terephthalate film / cured aqueous emulsion composition / acrylic adhesive / polyester film). Subsequently, the sample was cut to a width of 10 mm to obtain a sample for peel strength measurement. The peel strength between the adhesive tape and the cured aqueous emulsion composition of the sample for peel strength measurement was measured in a constant temperature chamber at 23°C using a Tensilon universal tester (product name "RTC-1250A", manufactured by A&D Co., Ltd.). The peel angle was 180° and the peel speed was 300 mm / min.

[0145] <Performance Evaluation (3): Surface Irregularity Suppression Test (Sq)> A laminate similar to that used in Performance Evaluation 1 was observed using a scanning white-light interference microscope (manufactured by Hitachi High-Tech Corporation), and the root mean square height Sq (nm) was measured. The laminate was then evaluated according to the following criteria. 4A: Less than 1.5nm 3A: 1.5nm or more and less than 2.5nm 2A: 2.5nm or more and less than 7.5nm A: 7.5nm or more and less than 20.0nm C:20.0nm or more

[0146] <Performance Evaluation (4): Si Migration Test> The elemental content of the surface that was in contact with the cured surface of the tape after the peelability test evaluation was measured using a scanning X-ray photoelectron spectroscopy analyzer (product name "PHI5000VersaProbeIII", manufactured by ULVAC-PHI, Inc.). The measured values ​​were analyzed and the Si element content / C element content was evaluated according to the following criteria. 2A: Less than 4.5 A: 4.5 or higher, less than 9.0 C:9.0 or higher

[0147] [Table 5]

[0148] [Table 6]

[0149] [Table 7]

[0150] [Table 8]

[0151] [Table 9]

[0152] The meanings of the terms in Tables 5-9 are as follows: The emulsion content shown in the table includes water and other substances contained in the emulsion, and is not calculated on a solid content basis. EXP4200: Product name "Orphine EXP4200" (manufactured by Nisshin Chemical Industry Co., Ltd.) SIL503A: Product name "Silface SAG-503A" (manufactured by Nisshin Chemical Industry Co., Ltd.) EXP4123: Product name "Orphine EXP4123" (manufactured by Nisshin Chemical Industry Co., Ltd.) BYK331: Product name "BYK331" (manufactured by BYK) DISP102: Product name "DISPERBYK-102" (manufactured by BYK Corporation) TEGO2200: Product name "TEGORAD2200N" (manufactured by Evonik) DYNOL607: Product name "Dynol 607" (manufactured by Nisshin Chemical Industry Co., Ltd.) FOM03009: N,N',N'',N'''-Tetraacryloyltriethylenetetramine (manufactured by Fujifilm Wako Pure Chemical Industries, Ltd., product name "FOM-03009") FOM03011: Photoradical initiator (manufactured by Fujifilm Wako Pure Chemical Industries, Ltd., product name "FOM-03011")

Claims

1. An aqueous emulsion composition comprising a (meth)acrylate (A) selected from the group consisting of a polysiloxane (A1) having a (meth)acryloyloxy group in its side chain, and a reaction product (A2) of a component comprising a polysiloxane (A1) having a hydroxyl group, a (meth)acrylate (a2) having a hydroxyl group, polyethylene glycol (a3) ​​having a hydroxyl group at one end, and a trifunctional or more polyisocyanate (a4), and a photopolymerization initiator (D).

2. The product includes a urethane (meth)acrylate (B), which is a reaction product of a component containing a hydroxyl group-containing (meth)acrylate (b1), a hydroxyl group-containing polyethylene glycol (b2), and a polyisocyanate (b3). The aqueous emulsion composition according to claim 1, wherein the urethane (meth)acrylate (B) is different from the reactant (A2).

3. It comprises one or more (C) selected from polyfunctional (meth)acrylate (c1) and polyfunctional (meth)acrylamide (c2), The aqueous emulsion composition according to claim 1, wherein the polyfunctional (meth)acrylate (c1) is different from the reactant (A2).

4. The aqueous emulsion composition according to claim 1, comprising an organic diluent (E).

5. A release coating agent comprising the aqueous emulsion composition described in claim 1.

6. A cured product of the aqueous emulsion composition according to claim 1 or the mold release coating agent according to claim 5.

7. A laminate comprising the cured product and substrate according to claim 6.

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