TW201418021A - Laminate and use thereof - Google Patents

Abstract

A laminate which has excellent antifouling properties, high surface hardness and transparency, and wherein a cured resin layer (II) having a contact angle with water of 100 DEG or more is formed on at least one surface of a resin molded body (I) that is obtained by curing a photocurable composition (i).

Description

Laminate and its use

The present invention relates to a laminate in which an antifouling function is imparted to a resin molded article which is obtained by curing a photocurable composition, and more particularly, it is excellent in antifouling property, transparency, scratch resistance, It is excellent in heat resistance, and is useful as a laminate for a protective sheet for a display or a substrate for a touch panel.

Conventionally, the protective sheet for display is a wide-purpose glass, and chemically tempered glass or an extremely thin glass film is used in addition to the slab glass having a thickness of about 0.5 to 1 mm.

The protective film referred to herein is located at the outermost surface of a display such as a mobile phone or a personal computer and is responsible for protecting the internal device. This protective sheet, sometimes referred to as a cover sheet, window, or cover window. In the case of a display with a touch panel, the film or sheet located at the outermost surface of the touch panel also serves as a protective sheet, so that strength and scratch resistance must be excellent. Further, the protective sheet must be transparent, but there is also a certain degree of haze from the viewpoint of the anti-glare effect, the concealing property of the scratch or the dirt, and/or the slipperiness.

On the other hand, in recent years, the protective sheet also requires antifouling function. The sebum, sweat, sewage, and the like adhering to the protective sheet not only impair the clean feeling but also reduce the visibility of the image. Moreover, when it is contaminated by magic ink or the like, even if it is wiped with a damp cloth, it is hard to wipe off, and the visibility is remarkably lowered.

Moreover, in a touch panel in which a plurality of people input with a finger, there is a problem that sebum, sweat, and the like are easily caused to cause a spread of food poisoning or a cause of nosocomial infection. Therefore, it is necessary to attach the contaminated dirt Wipe quickly, and the protective sheet is required to easily wipe off the dirt.

In order to impart an antifouling function to the protective sheet, a contact angle of the surface of the sheet is generally increased by using a fluorine-based material or an anthrone-based material. For example, a method of treating glass with a fluorinated alkyl decane coupling agent, and a method of providing a hardened coating film of a polyoxyalkylene-containing urethane (meth) acrylate-based composition on a glass surface ( For example, refer to Patent Document 1). However, the former method can only form a thin fluorine film, and there is a problem in durability, and the latter method has a problem in adhesion between the glass and the hardened coating film.

On the other hand, from the viewpoint of lightness and thinness of the display or the difficulty of cracking, and the manufacture of a flexible display, a protective sheet made of plastic is also used. Specifically, polymethyl methacrylate is mentioned. A film or sheet of ester (PMMA), polycarbonate, or polyethylene terephthalate (PET).

However, these plastic protective sheets cannot satisfy various properties such as mechanical properties such as surface hardness and flexural modulus, thermal properties such as heat resistance, moisture absorption, drug resistance, solvent solubility, and retardation, especially regarding surface hardness. Even if a hard coat layer is provided on the surface of such a plastic substrate, the hardness of the substrate itself is low, so that it is impossible to ensure sufficient hardness as a protective sheet.

In order to satisfy these characteristics, many resins have been proposed regardless of thermoplasticity or thermosetting property. In recent proposals, a molded article obtained by photohardening a specific photopolymerizable composition can also be seen. For example, it has been revealed that a photopolymerizable composition composed of a polyfunctional urethane (meth) acrylate having an alicyclic structure and a polyfunctional (meth) acrylate having an alicyclic structure provides high pencil hardness. a resin molded body (for example, refer to Patent Document 2), a monofunctional (meth) acrylate having an alicyclic structure, a polyfunctional urethane (meth) acrylate having an alicyclic structure, and an alicyclic structure. A photopolymerizable composition composed of a polyfunctional (meth) acrylate provides a resin molded article excellent in optical properties or thermomechanical properties (for example, see Patent Document 3), and a bifunctional (meth)acrylic acid having a specific alicyclic skeleton. Photopolymerizable composition of an ester compound, a specific aliphatic tetrafunctional (meth) acrylate compound, and a polyfunctional urethane (meth) acrylate compound having an alicyclic skeleton having a molecular weight of 200 to 2000 Excellent optical or thermomechanical properties The resin molded body (for example, refer to Patent Document 4).

[Previous Technical Literature]

[Patent Literature]

Patent Document 1: Japanese Laid-Open Patent Publication No. 2006-45504

Patent Document 2: Japanese Laid-Open Patent Publication No. 2006-193596

Patent Document 3: Japanese Laid-Open Patent Publication No. 2007-204736

Patent Document 4: Japanese Laid-Open Patent Publication No. 2007-56180

However, even with such disclosure technology, it is difficult to satisfy all the performances, and it is desired to have a plastic protective sheet having a high antifouling function and a high surface hardness. In particular, it is desirable to provide a laminate having an antifouling layer excellent in adhesion and durability with respect to the antifouling function.

Under such circumstances, the present invention has an object of providing a laminate having excellent antifouling properties and having high surface hardness and transparency.

In order to solve the problem, the inventors of the present invention have found that a cured resin layer having a high contact angle with water formed by curing a photocurable composition is formed by a resin molded body obtained by curing a photocurable composition. In addition, the adhesiveness between the resin molded body and the cured resin layer is excellent, and the present invention is excellent in the antifouling property and excellent in transparency, surface hardness, and scratch resistance.

In the meantime, the present invention relates to a laminate in which at least one surface of a resin molded body obtained by curing a photocurable composition is formed into a cured resin layer having a contact angle with water of 100° or more.

Furthermore, the present invention also provides a protective sheet for a display or a touch panel which is formed by using the above laminate.

In addition, in general, an antifouling agent such as a fluorine-based material or an anthrone-based material which is used for a photocured resin molded article has a problem of adhesion, and is difficult to use, and it is considered that even an optically cured antifouling layer is considered. In view of the durability of the adhesiveness, it is considered that it is difficult to use, but unexpectedly, it has excellent adhesion. Therefore, as described above, it is excellent in antifouling property and excellent in transparency, surface hardness, and scratch resistance. Layer body. As described above, the reason for the good adhesion is not clear, and it is presumed that the photocurable composition of the cured resin layer having a contact angle of 100° or more is formed on the surface of the base resin obtained by curing the photocurable composition. And/or the reason for high chemical affinity.

According to the present invention, the resin molded body is excellent in adhesion to the cured resin layer, and has excellent antifouling properties, and is excellent in transparency, surface hardness, and scratch resistance, and the laminate is used as a display. It is ideal for protective sheets or touch panels.

The invention is described in detail below.

In the present invention, "(meth)acrylate" is a generic term for acrylate and methacrylate, and a general term for "(meth)acrylic" acrylate and methacrylic groups. Further, the term "functional" as used herein means having two or more (meth) acrylonitrile groups in the molecule.

The laminate of the present invention is a hardened resin layer having a contact angle with water of at least 100° on at least one side of the resin molded body [I] obtained by curing the photocurable composition (i) [II] The resulting laminate.

First, it is explained about the resin molded body [I].

The resin molded body [I] is obtained by curing the photocurable composition (i). Photocurable composition (i) A known composition such as an acrylic type, an epoxy type, or a thiol/olefin addition system can be used. In the case where the photocurable composition (i) contains the following components (A1), (A2), and (A3), it is densely bonded to the hardened resin layer [II] which is an antifouling layer. The view of compatibility is ideal.

(A1) Polyfunctional urethane (meth) acrylate compound

(A2) A polyfunctional (meth) acrylate compound containing an alicyclic skeleton

(A3) Photopolymerization initiator

Since the polyfunctional urethane (meth) acrylate type compound (A1) is polyfunctional, it is possible to form a crosslinked resin by curing and obtain a resin molded body having high surface hardness or heat resistance. Further, since the resin molded article has a urethane bond in the molecule, and the obtained resin molded article has moderate toughness due to hydrogen bonding, a resin molded body having a high flexural modulus and high strength can be obtained.

Since the polyfunctional (meth)acrylate compound (A2) containing an alicyclic skeleton is polyfunctional, a crosslinked resin can be formed by hardening, and a resin molded body having high surface hardness or heat resistance can be obtained. Further, since the alicyclic skeleton is provided, the water absorption rate of the resin molded body can be reduced.

The polyfunctional urethane (meth) acrylate type compound (A1) is obtained by reacting a polyisocyanate compound with a hydroxyl group-containing (meth) acrylate type compound, and is not particularly limited as a polyisocyanate compound. For example, polyisocyanates such as aromatic, aliphatic, and alicyclic, and examples thereof include methylphenyl diisocyanate, diphenylmethane diisocyanate, hydrogenated diphenylmethane diisocyanate, and polyphenylmethane polyisocyanate. Modified diphenylmethane diisocyanate, hydrogenated xylene diisocyanate, xylene diisocyanate, hexamethylene diisocyanate, trimethylhexamethylene diisocyanate, tetramethylxylene diisocyanate, different Buddha Ketone diisocyanate, decene diisocyanate, 1,3-bis(isocyanatomethyl)cyclohexane, phenyl diisocyanate, diazonic acid diisocyanate, leucine triisocyanate, naphthalene diisocyanate, etc. Polyisocyanate or a trimeric or multimeric compound of such polyisocyanates, a diurea type polyisocyanate, a water-dispersible polyisocyanate (for example: Japanese polyamine) "AQUANATE 100", "AQUANATE 110", "AQUANATE 200", "AQUANATE 210", etc. manufactured by Ester Industries, Inc., or a reaction product of such a polyisocyanate and a polyhydric alcohol. These may be used alone or in combination of two or more. Among these, alicyclic polyisocyanates such as hydrogenated diphenylmethane diisocyanate, isophorone diisocyanate, norbornene diisocyanate, and 1,3-bis(isocyanatomethyl)cyclohexane are used. Can reduce trees The viewpoint of the water absorption rate of the fat molded body is preferred.

a hydroxyl group-containing (meth) acrylate compound, for example, 2-hydroxyethyl (meth)acrylate, 2-hydroxypropyl (meth)acrylate, 2-hydroxybutyl (meth)acrylate, (methyl) ) 4-hydroxybutyl acrylate, 2-hydroxyethyl acrylate, 2-(methyl) propylene oxiranyl 2-hydroxypropyl phthalate, 2-hydroxy-3- (A) Base) propylene oxime propyl (meth) acrylate, caprolactone modified 2-hydroxyethyl (meth) acrylate, pentaerythritol tri(meth) acrylate, dipentaerythritol penta (meth) acrylate, Lactone modified dipentaerythritol penta(meth)acrylate, caprolactone modified pentaerythritol tris(meth)acrylate, ethylene oxide modified pentaerythritol penta(meth)acrylate, ethylene oxide modification Pentaerythritol tris(meth)acrylate, and the like. These may be used alone or in combination of two or more. Among these, the acrylate is preferred from the viewpoint of quick-curing property, and a carbon chain such as 2-hydroxyethyl (meth)acrylate or pentaerythritol tri(meth)acrylate (hydroxyl group and (meth) acrylonitrile group) The shorter carbon chain is more preferable from the viewpoint of improving the flexural modulus of the resin molded body.

A polyfunctional (meth) acrylate-based compound (A2) containing an alicyclic skeleton, for example, bis(hydroxy)tricyclo[5.2.1.0 ^2,6 ]decane=di(meth)acrylate, bis(hydroxy) Tricyclo[5.2.1.0 ^2,6 ]decane=Acrylate methacrylate, bis(hydroxymethyl)tricyclo[5.2.1.0 ^2,6 ]decane=di(meth)acrylate, bis(hydroxyl) Methyl)tricyclo[5.2.1.0 ^2,6 ]decane=acrylate methacrylate, bis(hydroxy)pentacyclic [6.5.1.1 ^3,6 .0 ^2,7 .0 ^9,13 ]pentadecane = bis(meth) acrylate, bis(hydroxy) pentacycle [6.5.1.1 ^3,6 .0 ^2,7 .0 ^9,13 ] pentadecane = acrylate methacrylate, bis(hydroxymethyl) Five rings [6.5.1.1 ^3,6 .0 ^2,7 .0 ^9,13 ] pentadecane = di(meth) acrylate, bis(hydroxymethyl) pentacycle [6.5.1.1 ^3,6 .0 ^{2 , 7} .0 ^9,13 ] pentadecane = acrylate methacrylate, 2,2-bis[4-(β-(methyl) propylene oxyethoxy)cyclohexyl]propane, 1,3 - bis((meth)acryloxymethyl)cyclohexane, 1,3-bis((meth)acryloxyethyl)cyclohexane, 1,4-bis((meth)propene 2-functional (meth) propylene such as decyloxymethyl)cyclohexane or 1,4-bis((meth)acryloxyethyl)cyclohexane Ester, ginseng (hydroxy) tricyclo [5.2.1.0 ^2,6] decane = di (meth) acrylate, ginseng (hydroxymethyl) tricyclo [5.2.1.0 ^2,6] decane = di (meth Acrylate, cis (hydroxy) pentacycle [6.5.1.1 ^3,6 .0 ^2,7 .0 ^9,13 ] pentadecane = tri (meth) acrylate, cis (hydroxymethyl) pentacycle [6.5 .1.1 ^3,6 .0 ^2,7 .0 ^9,13 ]pentadecane = tris(meth) acrylate, 1,3,5-parade ((meth) propylene methoxymethyl) cyclohexane A trifunctional (meth) acrylate such as 1,3,5-parax ((meth)acryloxyethyl)cyclohexane. Among these, from the viewpoint of substrate heat resistance, it is preferably bis(hydroxy)tricyclo[5.2.1.0 ^2,6 ]decane=di(meth)acrylate, bis(hydroxymethyl)tricyclo[5.2.1.0 ^2,6 ]decane=di(meth)acrylate is preferred. The polyfunctional (meth)acrylate compound (A2) containing the alicyclic skeleton may be used in combination of two or more kinds, and acrylate and methacrylate may be used in combination.

The content of the polyfunctional urethane (meth) acrylate compound (A1) in the present invention is preferably 5 to 50% by weight, particularly preferably 8 to 40, based on the total of the component (A1) and the component (A2). More preferably, the weight % is more preferably 10 to 30% by weight. When the content of the component (A1) is too small, the surface hardness of the resin molded body tends to decrease, and if it is too large, the water absorption rate of the resin molded body tends to increase.

Further, the content of the polyfunctional (meth)acrylate compound (A2) having an alicyclic skeleton is preferably 50 to 95% by weight, more preferably 60%, based on the total of the component (A1) and the component (A2). ~92% by weight, more preferably 70 to 90% by weight. If the content of the component (A2) is too small, the water absorption rate of the resin molded body tends to increase, and if it is too large, the surface hardness of the resin molded body tends to decrease.

As the photopolymerization initiator (A3), known compounds such as diphenyl ketone, benzoin methyl ether, benzoin propyl ether, diethoxy acetophenone, and 1-hydroxycyclohexyl phenyl ketone can be used. 2,6-dimethylbenzimidyldiphenylphosphine oxide, 2,4,6-trimethylbenzimidyldiphenylphosphine oxide, and the like. Among these, a radically cracking type photopolymerization initiator such as 1-hydroxycyclohexyl phenyl ketone or 2,4,6-trimethylbenzimidyl diphenyl phosphine oxide is preferred. These photopolymerization initiators (A3) may be used singly or in combination of two or more.

The content of the photopolymerization initiator (A3) is 0.1 to 5 parts by weight, preferably 0.2 to 4 parts by weight, particularly preferably 0.3 to 3 parts by weight, based on 100 parts by weight of the total of the component (A1) and the component (A2). . If the content is too large, the hysteresis of the resin molded body increases, and there is a tendency to cause yellowing, and if the amount is too small, the polymerization rate is lowered, and the polymerization cannot be sufficiently carried out.

The photocurable composition (i) used in the present invention may further contain a small amount of auxiliary components such as components (A1) and (A2) without impeding the surface hardness or heat resistance of the resin molded body [I]. a monomer having an ethylenically unsaturated bond, a chain transfer agent, an antioxidant, an ultraviolet absorber, a thermal polymerization initiator, a polymerization inhibitor, an antifoaming agent, a coating agent, a bluening agent, a dye, and a filler Wait.

a monomer having an ethylenically unsaturated bond other than the components (A1) and (A2), for example, methyl methacrylate, 2-hydroxyethyl (meth)acrylate, phenyl (meth)acrylate, (methyl) a monofunctional (meth) acrylate such as benzyl acrylate or cyclohexyl (meth) acrylate, ethylene glycol di(meth)acrylate, diethylene glycol di(meth)acrylate, or di(methyl) Triethylene glycol acrylate, di(meth) acrylate of polyethylene glycol of tetraethylene glycol or higher, butylene glycol 1,3-di(meth)acrylate, 1,6-hexanediol Di(meth)acrylate, neopentyl glycol di(meth)acrylate, 2-hydroxy-1,3-bis(methyl)propenyloxypropane, 2,2-bis[4-(methyl Polyfunctional (meth) acrylate such as acryloxyphenyl]propane or trimethylolpropane tri(meth)acrylate, acrylamide, methacrylamide, acrylonitrile, methacrylonitrile A (meth)acrylic acid derivative, a styrene compound such as styrene, chlorostyrene, divinylbenzene or α-methylstyrene.

The content of the monomer having an ethylenically unsaturated bond other than the components (A1) and (A2) is preferably 30 parts by weight or less, more preferably 20 parts by weight based on 100 parts by total of the total of the component (A1) and the component (A2). It is preferably at most the parts by weight, particularly preferably 10 parts by weight or less. If the content is too large, the surface hardness or heat resistance of the resin molded body [I] tends to decrease.

As the chain transfer agent, a polyfunctional thiol compound is preferred. A polyfunctional thiol compound, for example, pentaerythritol thioglycolate, pentaerythritol thiopropionate, or the like. The polyfunctional thiol compound is preferably used in an amount of 10 parts by weight or less based on 100 parts by weight of the total of the component (A1) and the component (A2), more preferably 5 parts by weight or less, particularly 3 parts by weight. The following are preferred. If the amount used is too large, the surface hardness or rigidity of the obtained resin molded body [I] tends to decrease.

As an antioxidant, for example, 2,6-di-tert-butylphenol, 2,6-di-t-butyl-p-cresol, 2,4,6-tri-tert-butylphenol, 2,6 - di - tertiary butyl-4-sec-butyl phenol, 2,6-di - tert-butyl-4-hydroxy-methylphenol, n-octadecyl -β- (4 '- hydroxy-3', 5 ' -di-t-butylphenyl)propionate, 2,6-di-t-butyl-4-(N,N-dimethylaminomethyl)phenol, 3,5-di- Tributyl-4-hydroxybenzylphosphonate-diethyl ester, 2,4-bis(n-octylthio)-6-(4-hydroxy-3', 5' -di-t-butylanilinyl )-1,3,5-three , 4,4-methylene-bis(2,6-di-tert-butylphenol), 1,6-hexanediol bis[3-(3,5-di-t-butyl-4- Hydroxyphenyl)propionate], bis(3,5-di-t-butyl-4-hydroxybenzyl) sulfide, 4,4 ' -di-thiobis(2,6-di-third Phenol), 4,4'-tris-thiobis(2,6-di-t-butylphenol), 2,2-thiodiethylene bis[3-(3,5-di-t-butyl- 4-hydroxyphenyl)propionate], N,N ' -hexamethylenebis(3,5-di-t-butyl-4-hydroxyhydrocinnamoylamine, N,N ' -double [3- (3,5-di-t-butyl-4-hydroxyphenyl)propanyl] hydrazine, calcium (3,5-di-t-butyl-4-hydroxybenzyl)phosphonic acid monoethyl ester, 1,3,5-trimethyl-2,4,6-paran (3,5-di-t-butyl-4-hydroxybenzyl)benzene, ginseng (3,5-di-t-butyl- 4-hydroxyphenyl)isocyanurate, ginseng (3,5-di-t-butyl-4-hydroxybenzyl)isocyanurate, 1,3,5-cis-2 [3 (3 ,5-di-t-butyl-4-hydroxyphenyl)propanoxy]ethylisocyanate, hydrazine [methylene-3-(3',5'-di-t-butyl-4-hydroxyl) a compound such as phenyl)propionate]methane or 3,5-di-t-butyl-4-hydroxybenzylphosphite-diethyl ester, and these compounds may be used alone or in combination of two or more. Among these, the Stanford [methylene-3- (3 ', 5'-di - tert-butyl-4-hydroxyphenyl) propionate] methane, increasing the effect of suppressing the viewpoint of hue, especially good.

The content ratio of the antioxidant is preferably 0.001 to 1 part by weight, particularly preferably 0.01 to 0.5 part by weight, per 100 parts by weight of the total of the component (A1) and the component (A2). If the amount of the antioxidant is too small, the heat resistance of the resin molded article [I] tends to decrease, and if it is too much, the light transmittance tends to decrease.

The ultraviolet absorber is not particularly limited as long as it is dissolved in the (meth)acrylate compound, and various ultraviolet absorbers can be used. Specific examples thereof include a salicylate type, a diphenylketone type, a triazole type, a hydroxybenzoate type, and a cyanoacrylate type. These ultraviolet absorbers can be used in combination. Among these, a diphenylketone type or a triazole type is used from the viewpoint of compatibility with a (meth) acrylate type compound, specifically, (2-hydroxy-4-octyloxy-phenyl group) An ultraviolet absorber such as phenyl ketone or 2-benzotriazol-2-yl-4-thanooctyl-phenol is preferred. The content of the ultraviolet absorber is preferably 0.001 to 1 part by weight, particularly preferably 0.01 to 0.1 part by weight, per 100 parts by weight of the total of the component (A1) and the component (A2). If the amount of the ultraviolet absorber is too small, the light resistance tends to be lowered. If the amount is too high, the curing of the photocurable composition may take a long time or may not be sufficiently cured.

As the thermal polymerization initiator, known compounds such as hydrogen peroxide, t-butyl hydroperoxide, diisopropylbenzene hydroperoxide, 1,1,3,3-tetramethylbutyl peroxidation can be used. Dialkyl peroxide such as hydrogen, hydrogen peroxide, dibutyl butyl peroxide, dicumyl peroxide, benzoic acid Peroxyester such as tributyl ester, peroxy (2-ethylhexanoic acid) tert-butyl ester, perylene oxide such as bismuth peroxide, diisopropyl peroxycarbonate, etc. A peroxide such as an acetal or a ketone peroxide.

In the present invention, the photocurable composition (i) is cured to produce a resin molded body [I], and specifically, it is produced by the following method.

In other words, for example, the photocurable composition (i) is placed on a flat mold or between two flat molds, and active energy rays, particularly ultraviolet rays having a wavelength of 200 to 400 nm, are used to irradiate light from both sides or a single surface. Photohardening is preferred in the range of 1 to 100 J/cm ² . The more desirable range of the amount of irradiation light is 5 to 70 J/cm ² , and more preferably 10 to 50 J/cm ² . If the amount of the irradiation light is too small, the polymerization tends to be insufficient, and if it is too much, the productivity tends to decrease. The illuminance of ultraviolet rays is usually from 10 to 5,000 mW/cm ² , preferably from 100 to 1,000 mW/cm ² . If the illuminance is too small, it is difficult to sufficiently harden up to the inside of the resin molded body, and if the illuminance is too large, the polymerization tends to be severe and the hysteresis tends to increase.

The material of the mold is not particularly limited as long as it is an active energy ray that penetrates at least one of the molds, and may be made of glass, metal, or resin. Among these, from the viewpoint of light transmittance of the active energy ray, it is preferred to mold the glass or the transparent resin. In the case of using an opaque mold, the mold of the opposite side is a mold of a transparent material, and the opposite side is irradiated with an active energy ray.

When the ultraviolet ray is irradiated, if it is divided into a plurality of irradiations, a resin molded body having a small hysteresis can be obtained, which is preferable. For example, the first irradiation of about 1/100 to 1/10 of the total irradiation amount, and the method of irradiating the necessary residual amount after the second time.

Ultraviolet sources, such as metal halide lamps, high pressure mercury lamps, electrodeless mercury lamps, and the like. In order to prevent the polymerization from being intense due to the infrared rays generated by the light source, it is also possible to use a filter having a filter that blocks infrared rays or a mirror that does not reflect infrared rays.

In order to make the resin molded body obtained by the present invention have a higher degree of polymerization, or to alleviate stress The heat treatment may also be carried out, and it is preferred to carry out the heat treatment especially at 100 ° C or higher.

In the present invention, the thickness of the resin molded body [I] is a direct influence on the rigidity of the protective sheet, and is preferably 0.1 to 3 mm. If the thickness is too thin, it is easy to bend, and it is difficult to protect the internal device. On the other hand, if it is too thick, the weight of the entire display tends to be difficult. The thickness is preferably in the range of 0.2 to 2 mm, more preferably 0.3 to 1.5 mm, and particularly preferably 0.4 to 1 mm.

In the resin molded article [I] of the present invention, when the glass transition temperature is 100 ° C or more, it is preferable from the viewpoint of heat resistance. If the glass transition temperature is too low, there is a tendency that ripples occur or the hue deteriorates. The glass transition temperature is preferably in the range of 100 to 500 ° C, more preferably 150 to 400 ° C, and still more preferably 200 to 300 ° C. When the glass transition temperature is adjusted to the above range, a method of appropriately controlling the content of the type or component of the photocurable composition (i) may be mentioned. For example, an acrylate-based compound and a methacrylate-based compound are used in combination, and a large amount of a methacrylate-based compound or the like is blended in a mixing ratio thereof.

In the resin molded body [I] of the present invention, when the pencil hardness is 3H or more, it is preferable from the viewpoint of surface hardness. The pencil hardness is preferably 3H~10H, and particularly preferably 4H~8H. When the pencil hardness is adjusted to the above range, a method of appropriately controlling the content of the type or component of the photopolymerizable composition (i) can be mentioned. For example, a polyfunctional urethane (meth) acrylate compound having a 3 to 6 functional group or the like is used.

Moreover, the flexural modulus of the resin molded body [I] of the present invention is preferably 3 GPa or more. If the bending elastic modulus is too low, the rigidity tends to decrease. The bending elastic modulus is preferably 3 to 5 GPa, and more preferably 3.5 to 4 GPa. When the bending elastic modulus is adjusted to the above range, a method of appropriately controlling the content of the type or component of the photocurable composition (i) can be mentioned. For example, a polyfunctional urethane (meth) acrylate compound (A1) having a 3-6 functional group or the like is used.

Further, the resin molded body [I] of the present invention has a total light transmittance of preferably 80% or more, particularly preferably 85% or more, and more preferably 90% or more.

Next, it is explained for the hardened resin layer [II].

In the present invention, in order to impart an antifouling function to the resin molded body [I], the most preferable feature is to form a cured resin layer [II] having a contact angle with water of at least 100° on at least one side of the resin molded body [I]. The contact angle with water is preferably from 100 to 150 °, more preferably from 105 to 140 °, and particularly preferably from 110 to 120 °, from the viewpoint of antifouling function. If the contact angle is too small, the antifouling property is lowered. Moreover, if the contact angle is too large, the adhesion to the substrate (specifically, the resin molded body [I] or the hardened resin layer [III] described later) tends to decrease.

The hardened resin layer [II] may be a light-cured material by using a known material such as a fluorine-based or an fluorenone-based compound, and the following components (B1), (B2), and (B3) may be used as long as the contact angle is 100 or more. The photocurable composition (ii) is cured, and is preferably from the viewpoint of adhesion to the resin molded body.

(B1) a carbamate (meth) acrylate compound containing a polyoxyalkylene structure

(B2) a reactive fluorine-containing compound represented by the following formula (1)

(B3) Photopolymerization initiator

Wherein R1, R2, R3 and R4 each independently represent a hydrogen atom or a methyl group, X ₁ is an alkylene group, X ₂ is an exoaryl group, and X ₃ is represented by the following formula (2) or (3); a substituent, X ₄ is an alkylene group, or an oxyalkylene group, X ₅ is an alkylene group, and X ₆ is a hydrogen atom or an ester bond residue.

a and b are each an integer from 1 to 30, and c and d are each an integer of 0 to 60 (however, the bonding order of constituent units is arbitrary). ]

The above-mentioned urethane (meth) acrylate type compound (B1) having a polyoxyalkylene structure may be a structure in which a polysiloxane structure is contained in the structure, and in particular, the following formula (4) is used for the single a urethane (meth) acrylate compound (B1-1) obtained by using a polyoxyalkylene compound having a hydroxyl group at the terminal, and a polyoxyalkylene having a hydroxyl group at both terminals represented by the following formula (5) The urethane (meth) acrylate type compound (B1-2) obtained by the compound is preferable.

Further, the urethane (meth) acrylate-based compound (B1) having a polysiloxane structure may have a structural moiety derived from both of the general formulae (4) and (5).

Wherein R ¹ represents an alkyl group, R ² each independently represents an alkyl group, a cycloalkyl group or a phenyl group, and R ³ represents a hydrocarbon group or an organic group containing an oxygen atom. a is an integer of 1 or more, and b is an integer of 1 to 3. ]

In the formula, R ¹ and R ^{3 each} represent a hydrocarbon group or an organic group containing an oxygen atom, and R ² each independently represents an alkyl group, a cycloalkyl group or a phenyl group, a is an integer of 1 or more, and b and c are 1 to 3 Integer. ]

First, the urethane (meth)acrylate compound (B1-1) obtained by using the polyoxyalkylene compound having a hydroxyl group at the single terminal represented by the above formula (4) will be described.

The urethane (meth) acrylate type compound (B1-1) is a polyoxyalkylene type compound (x1) having a hydroxyl group at a single terminal represented by the above formula (4), and a polyisocyanate compound. (x2), which is obtained by reacting a hydroxyl group-containing (meth) acrylate compound (x3) and, if necessary, a polyol compound (x4).

With respect to the polyoxyalkylene-based compound (x1), it is preferred that R ¹ in the formula (4) is an alkyl group and the carbon number of the alkyl group is smaller. Specifically, the carbon number is usually from 1 to 15, preferably from 1 to 10, particularly preferably from 1 to 5, for example, methyl, ethyl, propyl or butyl.

R ² in the formula (4) is each independently an alkyl group, a cycloalkyl group, or a phenyl group.

The smaller the carbon number of the alkyl group is preferred. Specifically, the carbon number is usually from 1 to 15, preferably from 1 to 10, particularly preferably from 1 to 5, for example, methyl, ethyl, propyl or butyl. The carbon number of the cycloalkyl group is usually from 3 to 10, preferably from 5 to 8, such as a cyclopentyl group, a cyclohexyl group, a decyl group or the like.

Further, the alkyl group, the cycloalkyl group or the phenyl group may have a substituent. The substituent is usually, for example, a halogen atom, a hydroxyl group, an alkoxy group, an amine group, a decyl group, a sulfanyl group, a vinyl group, an acryloxy group, a methacryloxy group, an aryl group, a heteroaryl group or the like. Further, in the case where the substituent has a carbon atom, the carbon atom does not include the carbon number specified in the above description of R ² .

R ³ in the formula (4) is a hydrocarbon group or an organic group containing an oxygen atom. The hydrocarbon group usually has a carbon number of from 1 to 30, preferably from 1 to 20, and may be a divalent or trivalent hydrocarbon group.

Examples of the divalent hydrocarbon group include an alkylene group. The carbon number of the alkyl group is preferably from 1 to 10, particularly preferably from 1 to 4, such as ethyl, propyl, tetramethylene and the like. Examples of the organic group containing an oxygen atom include an oxygen-extended alkyl group and a polyoxyalkylene group.

In the formula (4), a is an integer of 1 or more, preferably 5 to 200, and particularly preferably an integer of 5 to 120. b is an integer from 1 to 3, preferably an integer from 1 to 2.

The weight average molecular weight of the polyoxyalkylene-based compound (x1) used in the present invention is usually from 100 to 50,000, more preferably from 500 to 10,000, still more preferably from 1,000 to 10,000. If the weight average molecular weight is too small, the antifouling performance tends to be lowered. If the weight average molecular weight is too large, the hardness or scratch resistance of the cured resin layer (hereinafter sometimes referred to as "coating film") tends to decrease.

Specific examples of the polyoxyalkylene-based compound (x1) represented by the formula (4) are, for example, "X-22-170BX", "X-22-170DX", and "X-22-176DX" manufactured by Shin-Etsu Chemical Co., Ltd. "X-22-176F", "SILAPLANE FM-0411" by CHISSO, "SILAPLANE FM-0421", "SILAPLANE FM-0425", "SILAPLANE FM-DA11", "SILAPLANE FM-DA21", "SILAPLANE FM" -DA26" and other products.

The polyisocyanate compound (x2) used in the present invention is, for example, methylphenyl diisocyanate, diphenylmethane diisocyanate, polyphenylmethane polyisocyanate, modified diphenylmethane diisocyanate, and xylene diisocyanate. , aromatic polyisocyanate such as tetramethylxylene diisocyanate, phenyl diisocyanate or naphthalene diisocyanate, hexamethylene diisocyanate, trimethyl hexamethylene diisocyanate, diazonic acid diisocyanate, and Aliphatic polyisocyanate such as amino acid triisocyanate, hydrogenated diphenylmethane diisocyanate, hydrogenated xylene diisocyanate, isophorone diisocyanate, norbornene diisocyanate, 1,3-bis(isocyanatosyl) An alicyclic polyisocyanate such as cyclohexane, or a trimeric or multimeric compound of such polyisocyanates, an allophanate type polyisocyanate, a diurea type polyisocyanate, or a water-dispersible poly Isocyanate (for example, "AQUANATE 100", "AQUANATE 110", "AQUANATE 200", "AQUANATE 210", etc., manufactured by Nippon Polyurethane Industry Co., Ltd.)These may be used alone or in combination of two or more.

Among these, an isocyanate compound having three or more isocyanate groups in one molecule, particularly a trimeric or multimeric compound of polyisocyanate, can be reduced in coating film hardness, scratch resistance, solvent resistance, and osmosis. The viewpoint of the unreacted low molecular weight component due to leakage is preferable.

The hydroxyl group-containing (meth) acrylate compound (x3) used in the present invention, for example, 2-hydroxyethyl (meth)acrylate, 2-hydroxypropyl (meth)acrylate, or 2-(meth)acrylate Hydroxybutyl (meth)acrylate such as hydroxybutyl ester, 4-hydroxybutyl (meth)acrylate, 6-hydroxyhexyl (meth)acrylate, 2-hydroxyethyl acrylate, 2-(methyl) ) propylene oxirane ethyl 2-hydroxypropyl phthalate, caprolactone modified 2-hydroxyethyl (meth) acrylate, dipropylene glycol (meth) acrylate, fatty acid modified - epoxy Propyl (meth) acrylate, polyethylene glycol mono (meth) acrylate, polypropylene glycol mono (meth) acrylate, 2-hydroxy-3-(methyl) propylene oxypropyl (methyl) Acrylate, glycerol di(meth)acrylate, 2-hydroxy-3-propenyloxypropyl methacrylate, pentaerythritol tri(meth)acrylate, caprolactone modified pentaerythritol tris(meth)acrylate Ethylene oxide modified pentaerythritol tris(meth)acrylate, dipentaerythritol penta(meth)acrylate, caprolactone modified pentaerythritol penta(meth)acrylate, ethylene oxide modified five Dipentaerythritol (meth)acrylate or the like. These may be used alone or in combination of two or more. Among these, from the viewpoint of obtaining a high hardness coating film, pentaerythritol tri(meth)acrylate or dipentaerythritol penta(meth)acrylate is preferred.

Further, the polyol compound (x4) can also be used within the range not impairing the effects of the present invention. The polyol compound (x4) is, for example, a polyether polyol, a polyester polyol, a polycarbonate polyol, a polyolefin polyol, a polybutadiene polyol, or a (meth)acrylic resin. Polyols, etc.

Examples of the polyether polyol include polyether polyols having an alkylene group structure such as polyethylene glycol, polypropylene glycol, polytetramethylene glycol, polytetramethylene glycol, and polyhexamethylene glycol. Or such random or block copolymers of polyalkylene glycols.

As the polyester-based polyol, for example, a condensation polymer of a polyhydric alcohol and a polyvalent carboxylic acid; a ring-opening polymer of a cyclic ester (lactone); obtained from three components of a polyhydric alcohol, a polyvalent carboxylic acid, and a cyclic ester The reaction product and the like. The aforementioned polyol, for example: ethylene glycol, diethylene glycol, propylene glycol, dipropylene glycol, trimethylene glycol, 1,4-tetramethylene glycol, 1,3-tetramethylene glycol, 2- Methyl-1,3-trimethylene glycol, 1,5-pentamethylene glycol, neopentyl glycol, 1,6-hexamethylene glycol, 3-methyl-1,5-five Methylene glycol, 2,4-diethyl-1,5-pentamethylene glycol, glycerin, trimethylolpropane, trimethylolethane, cyclohexanediol (1,4 - cyclohexanediol or the like), bisphenols (such as bisphenol A), sugar alcohols (such as xylitol or sorbitol).

As the polyvalent carboxylic acid, for example, malonic acid, maleic acid, fumaric acid, succinic acid, glutaric acid, adipic acid, suberic acid, azelaic acid, sebacic acid, dodecanedioic acid, etc. a dicarboxylic acid; an alicyclic dicarboxylic acid such as 1,4-cyclohexanedicarboxylic acid; terephthalic acid, isophthalic acid, phthalic acid, 2,6-naphthalenedicarboxylic acid, p-phenylene An aromatic dicarboxylic acid such as a carboxylic acid or trimellitic acid.

Examples of the cyclic ester include propiolactone, β-methyl-δ-valerolactone, and ε-caprolactone.

The weight average molecular weight of the polyol compound (x4) is preferably from 50 to 8,000, particularly preferably from 50 to 5,000, more preferably from 600 to 3,000. When the weight average molecular weight of the polyol compound (x4) is too large, mechanical properties such as coating film hardness at the time of curing tend to decrease, and if it is too small, the hardening shrinkage tends to be large, and the stability tends to be lowered.

The urethane (meth) acrylate type compound (B1-1) is preferably one or more ethylenically unsaturated groups, and particularly preferably has three or more ethylenic groups from the viewpoint of the hardness of the cured coating film. The unsaturated group is more preferably one having more than 6 ethylenically unsaturated groups. Further, the upper limit of the ethylenically unsaturated group contained in the urethane (meth)acrylate compound (B1-1) is usually 30, preferably 25 or less.

The method for producing the urethane (meth) acrylate-based compound (B1-1) is not particularly limited, and for example, (1): a polyoxyalkylene-based compound (x1) or a polyisocyanate-based compound (x2) ( a method of adding and reacting a polyisocyanate compound (x2) obtained by reacting a polyol compound (x4) with a hydroxyl group-containing compound (x3), and (2) : reacting a polyoxyalkylene-based compound (x1) with a polyisocyanate-based compound (x2) (polyisocyanate-based compound (x2) obtained by reacting a polyol compound (x4) beforehand), and then containing a hydroxyl group A method of reacting the (meth) acrylate-based compound (x3), and (3) a polyisocyanate-based compound (x2) (a polyisocyanate compound (x2) obtained by reacting a polyol compound (x4) in advance if necessary )) a method in which a polyoxyalkylene-based compound (x1) is reacted with a hydroxyl group-containing (meth)acrylate compound (x3), and (4) a polyisocyanate compound (x2) (if necessary) a polyisocyanate compound (x2) obtained by previously reacting with a polyol compound (x4) and a hydroxyl group-containing (methyl) Acid ester compound (x3) of After a part of the reaction, the polyoxyalkylene-based compound (x1) is further reacted, and the remaining hydroxyl group-containing (meth) acrylate-based compound (x3) is further reacted, etc., among these, (2) or The method of (4) is ideal, and the method of (2) is particularly preferable from the viewpoint of stability of reaction control.

In the case where the polyol-based compound (x4) is reacted with the polyisocyanate-based compound (x2) in advance, for example, a production example of a general urethane-based polyol can be used.

In the method (2), the polyisocyanate compound (x2) is obtained by reacting the hydroxyl group of the polyoxyalkylene compound (x1) with the isocyanate of the polyisocyanate compound (x2) based on the conditions in which the isocyanate group remains. The residual isocyanate group is reacted with the hydroxyl group of the hydroxyl group-containing (meth) acrylate compound (x3).

The reaction molar ratio of the polyoxyalkylene-based compound (x1) to the polyisocyanate-based compound (x2), for example, the isocyanate group of the polyisocyanate-based compound (x2) is a hydroxyl group-containing (meth)acrylate compound When the hydroxyl group of (x3) is one, the polyoxyalkylene-based compound (x1): the polyisocyanate-based compound (x2) is about 0.001 to 1:1, and the isocyanate group of the polyisocyanate-based compound (x2) is three. When the hydroxyl group of the hydroxyl group-containing (meth)acrylate compound (x3) is one, the polyoxyalkylene compound (x1): the polyisocyanate compound (x2) may be about 0.001 to 2:1.

In the addition reaction of the reaction product with the hydroxyl group-containing (meth) acrylate compound (x3), the urethane can be obtained by ending the reaction when the residual isocyanate group in the reaction system is 0.5% by weight or less. (Meth) acrylate compound (B1-1).

Further, the weight of the structural moiety derived from the polyoxyalkylene-based compound (x1) contained in 100 parts by weight of the urethane (meth)acrylate-based compound (B1-1) is preferably within the above range of the molar ratio. It is preferably 0.1 to 80 parts by weight.

In this reaction, in order to promote the reaction, a catalyst such as an organic metal compound such as dibutyltin laurate, trimethyltin hydroxide or tetra-n-butyltin, zinc octoate, tin octylate or naphthenic acid is preferably used. a metal salt such as cobalt, tin (II) chloride or tin (IV) chloride, triethylamine, benzyldiethylamine, 1,4-diazabicyclo[2,2,2]octane, 1,8 -diazabicyclo[5,4,0]undecene, N,N,N ' ,N ' -tetramethyl-1,3-butanediamine, N-ethyl An amine-based catalyst such as porphyrin, cerium nitrate, cerium bromide, cerium iodide, cerium sulfide, etc., and an organic cerium compound such as dibutyl laurate or dioctyl laurate or 2-ethylhexanoic acid Barium salt, barium naphthenate salt, barium isononium salt, barium neodecanoate salt, barium laurate salt, barium maleate salt, barium stearate salt, barium oleate salt, barium linoleate salt, acetic acid Anthraquinone salt, bismuth bismuth citrate salt, bismuth subsalicylate salt, bismuth bismuth citrate salt, and the like, such as an organic acid strontium salt, etc., among which is preferably dibutyltin dilaurate, 1,8- Diazabicyclo[5,4,0]undecene.

In this reaction, an organic solvent which does not have a functional group reactive with an isocyanate group can be used, for example, an ester such as ethyl acetate or butyl acetate, a ketone such as methyl ethyl ketone or methyl isobutyl ketone, or an aromatic such as toluene or xylene. Organic solvents such as a class.

The reaction temperature of the reaction is usually 30 to 100 ° C, preferably 40 to 90 ° C, and the reaction time is usually 2 to 10 hours, preferably 3 to 8 hours.

In summary, the weight average molecular weight of the obtained urethane (meth) acrylate type compound (B1-1) is preferably from 500 to 50,000, more preferably from 500 to 30,000. When the weight average molecular weight is too small, the hardening shrinkage is large, and the physical properties such as hardness and scratch resistance of the cured resin layer tend to decrease. If the weight is too large, the viscosity tends to be high, and the workability tends to be lowered.

In addition, the weight average molecular weight is a weight average molecular weight converted from the standard polystyrene molecular weight, and three columns are connected in series by high-speed liquid chromatography ("Shodex GPC system-11 type" manufactured by Showa Denko Co., Ltd.): Shodex GPC KF-806L (excluding the limit molecular weight: 2 × 10 ⁷ , separation range: 100 ~ 2 × 10 ⁷ , theoretical layer: 10,000 layers / root, filler material: styrene-divinylbenzene copolymer, filler particles Diameter: 10 μm) for measurement.

The measurement of the weight average molecular weight of the urethane (meth) acrylate type compound described later is carried out by the above method.

The urethane (meth) acrylate compound (B1-1) has a viscosity of 500 to 150,000 at 60 ° C mPa‧s is preferred, particularly preferably 500 to 120,000 mPa‧s, more preferably 1,000 to 100,000 mPa‧s. When the viscosity is outside the above range, the coating property tends to decrease.

The viscosity measurement method uses an E-type viscometer.

The above-mentioned urethane (meth) acrylate type compound (B1-1) may be used alone or in combination of two or more.

Next, the urethane (meth)acrylate compound (B1-2) obtained by using the polyoxyalkylene-based compound having a hydroxyl group at both terminals represented by the formula (5) will be described.

In the formula, R ¹ and R ^{3 each} represent a hydrocarbon group or an organic group containing an oxygen atom, and R ² each independently represents an alkyl group, a cycloalkyl group or a phenyl group, a is an integer of 1 or more, and b and c are 1 to 3 Integer. ]

The urethane (meth) acrylate-based compound (B1-2) is a polyoxyalkylene-based compound (y1) having a hydroxyl group at both terminals represented by the above formula (5) and a polyisocyanate-based compound ( Y2) is a reaction with a hydroxyl group-containing (meth)acrylate compound (y3) and, if necessary, a polyol compound (y4).

With respect to the polyoxyalkylene-based compound (y1), R ¹ and R ³ in the formula (5) are a hydrocarbon group or an organic group containing an oxygen atom.

The hydrocarbon group is usually a hydrocarbon group having 1 to 30 carbon atoms, preferably 1 to 20 carbon atoms and a divalent or trivalent carbon number.

The divalent hydrocarbon group may be an alkyl group. The carbon number of the alkyl group is preferably from 1 to 10, and particularly preferably from 1 to 4 carbon atoms, for example, an ethyl group, a propyl group, a tetramethylene group or the like.

Examples of the organic group containing an oxygen atom include an oxygen alkyl group, a polyoxyalkylene group, and the like.

R ² in the formula (5) is each independently an alkyl group, a cycloalkyl group, or a phenyl group.

The smaller the carbon number of the alkyl group is preferred. Specifically, the carbon number is usually from 1 to 15, preferably from 1 to 10, particularly preferably from 1 to 5, for example, methyl, ethyl, propyl or butyl.

The carbon number of the cycloalkyl group is usually from 3 to 10, preferably from 5 to 8, such as a cyclopentyl group, a cyclohexyl group, a norbornyl group or the like.

Further, the alkyl group, the cycloalkyl group or the phenyl group may have a substituent. The substituent is usually a halogen atom, a hydroxyl group, an alkoxy group, an amine group, a decyl group, a sulfanyl group, a vinyl group, a propylene methoxy group, a methacryloxy group, an aryl group or a heteroaryl group. Further, when the substituent has a carbon atom, the carbon atom does not include the carbon number specified in the description of R ² described above.

In the formula (5), a is an integer of 1 or more, preferably 5 to 200, and particularly preferably an integer of 5 to 120. b, c is an integer from 1 to 3, preferably an integer from 1 to 2.

The weight average molecular weight of the polyoxyalkylene-based compound (y1) is usually from 100 to 50,000, more preferably from 500 to 10,000, still more preferably from 1,000 to 10,000. If the weight average molecular weight is too small, the antifouling property tends to decrease, and if it is too large, the transparency or scratch resistance tends to decrease.

Specific examples of the polyoxyalkylene-based compound (y1) include "X-22-160AS", "KF-6001", "KF-6002", "KF-6003" manufactured by Shin-Etsu Chemical Co., Ltd., and "manufactured by CHISSO". Products such as SILAPLANE FM-4411, "SILAPLANE FM-4421", "SILAPLANE FM-4425", and "MICROMONOMER HK-20" manufactured by Toagos Corporation.

The polyisocyanate-based compound (y2) is, for example, the same as the polyisocyanate-based compound (x2) described above for the urethane (meth)acrylate-based compound (B1-1).

As the hydroxyl group-containing (meth) acrylate type compound (y3), for example, as a hydroxyl group-containing (meth)acrylic acid in the description about the above urethane (meth) acrylate type compound (B1-1) The ester compound (x3) is exemplified by the same.

Further, the polyol-based compound (y4) may be used as long as the effect of the present invention is not impaired, for example, as described above with respect to the above-described urethane (meth)acrylate-based compound (B1-1). The polyol compound (x4) is exemplified by the same.

The urethane (meth)acrylate compound (B1-2) is preferably one having two or more ethylenically unsaturated groups, and particularly preferably having four or more ethylenic groups from the viewpoint of the hardness of the cured resin layer. Those having an unsaturated group are more preferably those having 6 or more ethylenically unsaturated groups.

Further, the upper limit of the ethylenically unsaturated group contained in the urethane (meth)acrylate compound (B1-2) is usually 30, preferably 25 or less.

The method for producing the urethane (meth)acrylate compound (B1-2) is not particularly limited, and for example, (1): a polyoxyalkylene-based compound (y1) or a polyisocyanate-based compound (y2) ( a method in which a polyisocyanate compound (y2) obtained by reacting a polyol compound (y4) in advance, a hydroxyl group-containing (meth)acrylate compound (y3) is added and reacted, and (2) : reacting a polyoxyalkylene-based compound (y1) with a polyisocyanate-based compound (y2) (a polyisocyanate-based compound (y2) obtained by reacting a polyol compound (y4) in advance), and then allowing a hydroxyl group A method of reacting the (meth) acrylate-based compound (y3), and (3) a polyisocyanate-based compound (y2) (a polyisocyanate-based compound obtained by reacting a polyol compound (y4) in advance (y2) )) a method of reacting a polyoxyalkylene-based compound (y1) with a hydroxyl group-containing (meth)acrylate compound (y3), and (4) a polyisocyanate compound (y2) (if necessary) a polyisocyanate compound (y2) obtained by previously reacting with a polyol compound (y4) and a hydroxyl group-containing (meth) propylene After a part of the acid ester compound (y3) is reacted, the polyoxyalkylene-based compound (y1) is further reacted, and the remaining hydroxyl group-containing (meth)acrylate compound (y3) is reacted, etc. Among them, the method of (2) or (4) is preferable, and the method of (4) is particularly preferable from the viewpoint of stability or mutual solubility of reaction control.

In addition, when the polyol compound (y4) is reacted with the polyisocyanate compound (y2) in advance, for example, a general production example of a urethane-based polyol may be used.

In the method of the above (2), the hydroxyl group of the polyoxyalkylene-based compound (y1) and the isocyanate group of the polyisocyanate-based compound (y2) are reacted under conditions such that the isocyanate group remains, and then the polyisocyanate-based compound ( The residual isocyanate group of y2) is reacted with the hydroxyl group of the hydroxyl group-containing (meth) acrylate compound (y3).

The reaction molar ratio of the polyoxyalkylene-based compound (y1) to the polyisocyanate-based compound (y2), for example, a polyisocyanate-based compound (y2) having two isocyanate groups and having a hydroxyl group-containing (meth)acrylate compound When the hydroxyl group of (y3) is one, the polyoxyalkylene-based compound (y1): the polyisocyanate-based compound (y2) is about 0.001 to 1:1, and the isocyanate group of the polyisocyanate-based compound (y2) is three and contains When the hydroxyl group of the hydroxy (meth) acrylate type compound (y3) is one, the polyoxyalkylene type compound (y1): the polyisocyanate type compound (y2) may be about 0.001 to 2:1.

In the addition reaction of the reactive product with the hydroxyl group-containing (meth) acrylate-based compound (y3), the reaction is completed when the residual isocyanate group in the reaction system is 0.5% by weight or less, and a carbamate can be obtained. (Meth) acrylate compound (B1-2).

Further, the weight of the structural moiety derived from the polyoxyalkylene-based compound (y1) contained in 100 parts by weight of the urethane (meth)acrylate-based compound (B1-2) is preferably within the above range of the molar ratio. It is preferably 0.1 to 80 parts by weight.

In this reaction, a catalyst is preferably used to promote the reaction, and the catalyst is the same as described above.

In this reaction, an organic solvent which does not have a functional group reactive with an isocyanate group can be used, for example, an ester such as ethyl acetate or butyl acetate, a ketone such as methyl ethyl ketone or methyl isobutyl ketone, or an aromatic such as toluene or xylene. Organic solvents such as a class.

The reaction temperature of the reaction is usually 30 to 100 ° C, preferably 40 to 90 ° C, and the reaction time is usually 2 to 10 hours, preferably 3 to 8 hours.

The weight average molecular weight of the obtained urethane (meth) acrylate type compound (B1-2) is usually from 500 to 50,000, more preferably from 500 to 30,000. When the weight average molecular weight is too small, the hardening shrinkage is large, and the physical properties such as hardness and scratch resistance of the cured resin layer tend to be lowered. When the weight is too large, the viscosity is high and the workability tends to be lowered.

The viscosity of the urethane (meth) acrylate compound (B1-2) at 60 ° C is preferably 500 to 150,000 mPa ‧ preferably, particularly preferably 500 to 120,000 mPa ‧ , more preferably 1000 100,000 mPa‧s. When the viscosity is outside the above range, the coating property tends to decrease.

Moreover, the viscosity measurement method uses an E-type viscometer.

The above-mentioned urethane (meth) acrylate type compound (B1-2) may be used alone or in combination of two or more.

As the urethane (meth) acrylate type compound (B1) having a polyoxy siloxane structure, the above urethane (meth) acrylate type compound (B1-1) and/or uric acid is preferably used. The ester (meth)acrylate compound (B1-2) is preferred, and the urethane (meth)acrylate compound (B1-1) is preferably used from the viewpoint of excellent antifouling performance.

Further, when the urethane (meth) acrylate type compounds (B1-1) and (B1-2) are used in combination, the urethane (meth) acrylate type compound (B1-1) and the urethane are used together. The content ratio (weight ratio) of the (meth) acrylate-based compound (B1-2) is preferably (B1-1) / (B1-2) = 5/95 to 95/5, and particularly preferably (B1-1) ) / (B1-2) = 20/80~80/20.

Next, it is explained with respect to the reactive fluorine-containing compound (B2) represented by the following general formula (1).

Wherein R1, R2, R3 and R4 are each independently a hydrogen atom or a methyl group, X ₁ is an alkylene group, X ₂ is an exoaryl group, and X ₃ is represented by the following formula (2) or (3); a substituent, X ₄ is an alkylene group, or an alkyloxy group, X ₅ is an alkylene group, and X ₆ is a hydrogen atom or an ester bond residue.

a and b are each an integer from 1 to 30, and c and d are each an integer of 0 to 60 (however, the bonding order of constituent units is arbitrary). ]

The reaction of the fluorine-containing compound (B2) in the general formula (1), the structure characterized by containing the structural moiety X ₃ represents the fluorine atoms, and (meth) Bing Xixi group, by having this structure, When used in combination with the urethane (meth) acrylate compound (B1), it exhibits excellent antifouling properties. In particular, when X ₄ is an oxygen-extended alkyl group, the miscibility with the urethane (meth) acrylate-based compound (B1) is particularly improved, which is preferable.

R1 to R4 in the formula (1) are each independently a hydrogen atom or a methyl group.

X ₁ in the formula (1) is an alkylene group, and the carbon number of the alkylene group is usually from 1 to 12, preferably from 1 to 8, more preferably from 1 to 4. Specific examples thereof include a methylene group, an ethyl group, a propyl group, and a tetramethylene group.

X ₂ in the formula (1) is an extended aryl group, and the carbon number as the extended aryl group is usually 6 to 12, preferably 6. Specific examples thereof include a phenylene group and a naphthyl group.

X ₃ in the formula (1) is a substituent of a fluorine atom represented by the following formula (2) or (3).

Further, in the reactive fluorine-containing compound (B2), when a is 2 or more, both of the substituents represented by the general formulae (2) and (3) may be contained, or only one of them may be contained.

The X ₄ in the formula (1) is an alkyl group or an oxygen alkyl group.

The carbon number of the alkylene group is usually from 1 to 12, preferably from 1 to 8, more preferably from 1 to 4. Specific examples thereof include a methylene group, an ethyl group, a propyl group, and a tetramethylene group.

In the case of an oxygen-extended alkyl group, it may be a structure represented by the following formula (7), and in the case of a polyoxyalkylene group having 2 or more n-type alkyl groups, it may be a homopolymer of the same oxygen-extended alkyl chain, or may be Different oxygen alkyl groups are copolymerized into random or block copolymers.

(wherein Y is an alkylene group and n is an integer of 1 or more.)

Y in the formula (7) is an alkylene group, and the carbon number of the alkylene group is usually from 1 to 12, preferably from 1 to 8, more preferably from 1 to 4. Specific examples thereof include a methylene group, an ethyl group, a propyl group, and a tetramethylene group.

n in the formula (7) is an integer of 1 or more, preferably 1 to 30, particularly preferably 2 to 20, and still more preferably 5 to 15.

X ₅ in the formula (1) is an alkylene group, and the carbon number as the alkylene group is usually from 1 to 12, preferably from 1 to 8, more preferably from 1 to 4. Specific examples thereof include a methylene group, an ethyl group, a propyl group, and a tetramethylene group.

X ₆ in the formula (1) is a hydrogen atom or an ester bond residue. The ester bond residue may, for example, be a monovalent saturated hydrocarbon group or an aryl group.

The monovalent saturated hydrocarbon group is usually a carbon number of 1 to 30, preferably a carbon number of 1 to 20. Specific examples thereof include a linear alkyl group such as a methyl group or an ethyl group, a branched alkyl group such as an isooctyl group or a 2-ethylhexyl group, or an alicyclic alkyl group such as a cyclohexyl group, an isodecyl group or a dicyclopentyl group.

The aryl group is usually a carbon number of 6 to 20, preferably a carbon number of 6 to 15. Specific examples thereof include a phenyl group, a tolyl group, a xylyl group, a biphenyl group, and a naphthyl group.

Further, the above X ₁ , X ₂ , X ₄ , X ₅ and X ₆ may have a substituent such as a halogen atom, a hydroxyl group, an alkoxy group, an amine group, a decyl group, a sulfanyl group or a vinyl group. Acryloxy, methacryloxy, aryl, heteroaryl, and the like. Further, when the substituent has a carbon atom, the carbon atom does not include the carbon number specified in the above description of X ₁ , X ₂ , X ₄ , X ₅ and X ₆ .

In the formula (1), a and b are each an integer of 1 to 30, and c and d are each an integer of 0 to 60.

Further, the ratio of a to (b+c+d) is preferably 0.1≦a/(b+c+d)≦10, and particularly preferably 0.1≦a/(b+c+d)≦8,c The ratio to (b+c) is preferably 0≦c/(b+c)<0.95, particularly preferably 0≦c/(b+c)<0.9, the ratio of d to (a+b+c) Preferably, 0≦d/(a+b+c)≦5 is preferred, and particularly preferably 0≦d/(a+b+c)≦3.

Further, when a to d in the general formula (1) is an integer of 2 or more, each structural moiety in [ ] in the general formula (1) may be the same structure or may be a repetition of a different structure.

The weight average molecular weight of the reactive fluorine-containing compound (B2) is usually from 1,000 to 100,000, preferably from 2,500 to 40,000, particularly preferably from 3,000 to 30,000.

The method for producing the reactive fluorine-containing compound (B2) may be a method for producing a general fluorine-containing compound, and for example, it can be produced by the method described in JP-A-2010-47680.

The content of the reactive fluorine-containing compound (B2) is preferably 0.5 to 500 parts by weight, more preferably 100 parts by weight based on 100 parts by weight of the urethane (meth)acrylate compound (B1) having a polyoxyalkylene structure. It is 2 to 200 parts by weight, and more preferably 5 to 100 parts by weight. If the content is too large, the mutual solubility decreases and the phase separation occurs, or the cured resin layer tends to become cloudy. If the content is too small, the antifouling performance tends to be insufficient.

In the present invention, the urethane (meth) acrylate-based compound (B1) and the reactive fluorinated compound (B2) containing the polyoxosiloxane-containing structure further contain an ethylenically unsaturated compound. When B1) and (B2) are excluded (B4), it is preferable that the hardness of the cured resin layer or the scratch resistance is excellent.

The content of the ethylenically unsaturated compound (B4) is preferably from 0 to 99% by weight, particularly preferably from 25 to 98% by weight, and more preferably 50% based on the total of the components (B1), (B2) and (B4). ~97% by weight, more preferably 75 to 96% by weight. If the content of the ethylenically unsaturated compound (B4) is too large, there is a tendency that sufficient antifouling performance cannot be obtained. Further, if the ethylenically unsaturated compound (B4) is too small. The hardness or scratch resistance of the cured resin layer tends to decrease.

The ethylenically unsaturated compound (B4), for example, a urethane (meth) acrylate type compound (B4-1) and/or an ethylenically unsaturated monomer (B4-2) is preferable.

The urethane (meth) acrylate type compound (B4-1-1) represented by the following general formula (6) is used as the urethane (meth) acrylate type compound (B4-1). Easy to give requirements for various purposes The viewpoint of physical properties is ideal.

[In the formula, R ¹ is a urethane bond residue of a polyvalent isocyanate compound, R ² is a urethane bond residue of a hydroxyl group-containing (meth) acrylate type compound, and a is an integer of 2 to 50. . ]

The urethane (meth) acrylate type compound (B4-1-1) represented by the above formula (6) is obtained by reacting a polyisocyanate compound with a hydroxyl group-containing (meth) acrylate compound. .

The a in the above formula (6) may be an integer of from 2 to 50, preferably from 2 to 20, particularly preferably from 2 to 10.

The polyisocyanate compound is, for example, the same as the polyisocyanate compound (x2) described in the description of the urethane (meth)acrylate compound (B1-1), or a polyisocyanate. The compound (x2) is reacted with a polyol compound (x4).

The hydroxyl group-containing (meth) acrylate type compound is, for example, a hydroxyl group-containing (meth) acrylate type in the description of the urethane (meth) acrylate type compound (B1-1). The compound (x3) is exemplified by the same person.

The method for producing the urethane (meth) acrylate compound (B4-1-1) can be produced by a known method for producing a urethane (meth) acrylate compound. For example, the same as the above polyisocyanate compound (x2) and the same as the hydroxyl group-containing (meth)acrylate compound (x3), may be added to the reactor at the same time or separately and reacted.

Further, the molar ratio of the polyisocyanate-based compound to the hydroxyl group-containing (meth) acrylate-based compound is, for example, a polyisocyanate-based compound having two isocyanate groups and having a hydroxyl group-containing (meth) acrylate compound. When the number of hydroxyl groups is one, the polyisocyanate compound: the hydroxyl group-containing (meth)acrylate compound is about 1:2 to 3, and the polyisocyanate compound has three isocyanate groups. When the hydroxyl group of the hydroxyl group-containing (meth) acrylate type compound is one, the polyisocyanate type compound: the hydroxyl group-containing (meth) acrylate type compound is about 1:3 to 4.

In the addition reaction of the polyisocyanate-based compound and the hydroxyl group-containing (meth) acrylate-based compound, the reaction is completed when the residual isocyanate group content of the reaction system is 0.5% by weight or less. An ester (meth) acrylate compound (B4-1-1).

The number of the ethylenically unsaturated groups contained in the urethane (meth)acrylate compound (B4-1-1) obtained above is preferably from 2 to 30, particularly preferably from 3 to 20, and further preferably More preferably 6~15.

If the number of ethylenically unsaturated groups is too small, the hardness or scratch resistance of the coating film may not be obtained. If too much, the curing shrinkage of the coating film becomes large, and the adhesion of the substrate may be lowered or coated. The tendency of the film to become brittle.

The weight average molecular weight of the urethane (meth) acrylate type compound (B4-1) is preferably from 700 to 50,000, more preferably from 800 to 30,000, particularly preferably from 1,000 to 10,000. If the weight average molecular weight is too small, the balance between the hardness and shrinkage resistance of the cured resin layer may be difficult, or the moisture permeability of the substrate may be lowered. If the weight average molecular weight is too large, when using 2~ In the case of a trifunctional polyfunctional oligomer, it tends to be difficult to maintain scratch resistance or hardness.

The viscosity of the urethane (meth) acrylate compound (B4-1) at 60 ° C is preferably 200 to 150,000 mPa ‧ preferably, particularly preferably 500 to 120,000 mPa ‧ , more preferably 500 100,000 mPa‧s. When the viscosity is outside the above range, the coating property tends to decrease.

Moreover, the viscosity measurement method uses an E-type viscometer.

The ethylenically unsaturated monomer (B4-2) is an ethylenically unsaturated monomer having one or more ethylenically unsaturated groups in one molecule (except for the urethane (meth)acrylate). The compound (B4-1)) may be, for example, a monofunctional monomer, a bifunctional monomer or a trifunctional or higher monomer.

The monofunctional monomer may be any monomer containing one ethylenically unsaturated group, for example, styrene, vinyl toluene, chlorostyrene, α-methylstyrene, methyl (meth)acrylate, (Methyl) ethyl acrylate, acrylonitrile, vinyl acetate, 2-hydroxyethyl (meth)acrylate, 2-hydroxypropyl (meth)acrylate, 2-hydroxybutyl (meth)acrylate, (A) Phenyloxyethyl acrylate, 2-phenoxy-2-hydroxypropyl (meth)acrylate, 2-hydroxy-3-phenoxypropyl (meth)acrylate, 3-(meth)acrylate Chloro-2-hydroxypropyl ester, glycerol mono(meth)acrylate, glycidyl (meth)acrylate, lauryl (meth)acrylate, cyclohexyl (meth)acrylate, (meth)acrylic acid Anthracene ester, tricyclodecyl (meth)acrylate, dicyclopentenyl (meth)acrylate, n-butyl (meth)acrylate, hexyl (meth)acrylate, heptyl (meth)acrylate, ( Octyl methacrylate, decyl (meth) acrylate, decyl (meth) acrylate, isodecyl (meth) acrylate, dodecyl (meth) acrylate, n-stearyl (meth) acrylate Benzyl (meth)acrylate Phenol ethylene oxide modified (meth) acrylate, nonyl phenol propylene oxide modified (meth) acrylate, 2-(methyl) propylene decyloxy-2-hydroxypropyl phthalic acid A half ester (meth) acrylate of a phthalic acid derivative such as an ester, an oxime (meth) acrylate, a carbitol (meth) acrylate, a benzyl (meth) acrylate, or a (meth) acrylate Oxyethyl ester, allyl (meth)acrylate, acrylonitrile Porphyrin, 2-hydroxyethyl acrylamide, N-methylol (meth) acrylamide, N-vinyl pyrrolidone, 2-vinyl pyridine, 2-(methyl) propylene methoxyethyl acid phosphate Monoester and the like.

Further, examples of the monofunctional monomer include a Michael adduct of acrylic acid or a 2-propenyloxyethyl dicarboxylic acid monoester. Examples of the Michael adduct of acrylic acid include acrylic acid dimer and methyl group. Acrylic acid dimer, acrylic acid trimer, methacrylic acid trimer, acrylic acid tetramer, methacrylic acid tetramer, and the like. Further, as a carboxylic acid 2-propenyl oxirane ethyl dicarboxylic acid monoester having a specific substituent, for example, 2-propenyl oxyethyl succinic acid monoester, 2-methyl propylene oxyethyl succinic acid monoester, 2-propenyloxyethyl phthalate monoester, 2-methylpropenyloxyethyl phthalate monoester, 2-propenyl oxiranyl hexahydrophthalic acid monoester, 2-methyl Propylene oxiranyl ethyl hexahydrophthalic acid monoester, and the like. Further, an oligoester acrylate can also be mentioned.

The bifunctional monomer may be any monomer containing two ethylenically unsaturated groups, for example, ethylene glycol di(meth)acrylate, diethylene glycol di(meth)acrylate, and di(a). Tetraethylene glycol acrylate, polyethylene glycol di(meth)acrylate, propylene glycol di(meth)acrylate, dipropylene glycol di(meth)acrylate, propylene glycol poly(meth)acrylate, Butylene glycol (meth)acrylate, neopentyl glycol di(meth)acrylate, ethylene oxide modified bisphenol A type di(meth)acrylate, ring Oxypropane modified bisphenol A type di(meth) acrylate, 1,6-hexanediol di(meth) acrylate, 1,6-hexane diol ethylene oxide modified di(methyl Acrylate, glycerol di(meth) acrylate, pentaerythritol di(meth)acrylate, ethylene glycol diglycidyl di(meth) acrylate, diethylene glycol diglycidyl ether (a) Acrylate, diglycidyl phthalate di(meth) acrylate, hydroxytrimethylacetate modified di(meth)acrylic acid neopentyl glycol ester, isocyanuric acid oxirane A diacrylate, a 2-(meth) propylene methoxyethyl phosphate diester or the like.

The trifunctional or higher monomer may be any monomer containing three or more ethylenically unsaturated groups, for example, trimethylolpropane tri(meth)acrylate, pentaerythritol tri(meth)acrylate, or four. Pentaerythritol (meth)acrylate, dipentaerythritol penta(meth)acrylate, dipentaerythritol hexa(meth)acrylate, tris(meth)acryloxymethoxytrimethylolpropane, glycerol polyepoxy Propyl ether poly(meth)acrylate, isocyanuric acid ethylene oxide modified triacrylate, ethylene oxide modified pentaerythritol penta(meth)acrylate, ethylene oxide modified hexa(methyl) Dipentaerythritol acrylate, ethylene oxide modified pentaerythritol tri(meth)acrylate, ethylene oxide modified pentaerythritol tetra(meth)acrylate, caprolactone modified dipentaerythritol penta(meth)acrylate, Caprolactone modified dipentaerythritol hexa(meth)acrylate, caprolactone modified pentaerythritol tris(meth)acrylate, caprolactone modified pentaerythritol tetra(meth)acrylate, succinic acid modified tris(A) Base) pentaerythritol acrylate and the like.

These ethylenically unsaturated monomers (B4-2) may be used alone or in combination of two or more.

The ethylenically unsaturated monomer (B4-2) is preferably a monomer containing two or more ethylenically unsaturated groups, and more preferably contains three or more ethylenic groups from the viewpoint of obtaining a high hardness coating film. A monomer of a saturated group.

Specifically, pentaerythritol tri(meth)acrylate, pentaerythritol tetra(meth)acrylate, dipentaerythritol penta(meth)acrylate, and dipentaerythritol hexa(meth)acrylate can obtain a hardened resin layer having a high hardness. It is ideal.

When the urethane (meth) acrylate type compound (B4-1) and the ethylenically unsaturated monomer (B4-2) are used together as the ethylenically unsaturated compound (B4), (B4-1) and (B4-1) B4-2) content ratio (weight ratio) It should be (B4-1): (B4-2) = 5: 95~95: 5 is better, especially good (B4-1): (B4-2) = 20: 80~80: 20.

In the present invention, a photopolymerization initiator (B3) may also be further contained.

The photopolymerization initiator (B3), for example, diethoxyacetophenone, 2-hydroxy-2-methyl-1-phenylpropan-1-one, benzyldimethylacetal, 4-( 2-hydroxyethoxy)phenyl-(2-hydroxy-2-propyl)one, 1-hydroxycyclohexyl phenyl ketone, 2-methyl-2- Oxo (4-thiomethylphenyl)propan-1-one, 2-benzyl-2-dimethylamino-1-(4- Acetophenones such as phenylphenyl)butanone and 2-hydroxy-2-methyl-1-[4-(1-methylvinyl)phenyl]acetone oligomer; benzoin and benzoin Methyl ether, benzoin ether, benzoin isopropyl ether, benzoin isobutyl ether and other benzoin; diphenyl ketone, methyl o-benzoyl benzoate, 4-phenyl diphenyl ketone , 4-benzylidene-4'-methyl-diphenyl sulfide, 3,3',4,4'-tetrakis(t-butylperoxycarbonyl)diphenyl ketone, 2,4,6 -trimethyldiphenyl ketone, 4-benzylidene-N,N-dimethyl-N-[2-(1-o-oxy-2-propenyloxy)ethyl]benzene bromide Diphenyl ketones such as (4-benzylidylbenzyl)trimethylammonium chloride, 2-isopropylthioxanthone, 4-isopropylthioxanthone, 2,4-diethylthiophene Tons of ketone, 2,4-dichlorothioxanthone, 1-chloro-4-propoxythioxanthone, 2-(3-dimethylamino-2-hydroxy)-3,4-dimethyl-9H - thioxanthone such as thioxanthone-9-one meso-chloride; 2,4,6-trimethylbenzimidyl-diphenylphosphine oxide, bis(2,6-dimethoxybenzoate) Mercapto-based fluorenylphosphines such as -2,4,4-trimethyl-pentylphosphine oxide, bis(2,4,6-trimethylbenzylidene)-phenylphosphine oxide; In addition, these photopolymerization initiators (B3) may be used alone or in combination of two or more.

Further, as such an auxiliary agent, triethanolamine, triisopropanolamine, 4,4'-dimethylaminodiphenyl ketone (Michler's ketone), 4,4'-diethylaminodiphenyl may be used in combination. Ketone, 2-dimethylaminoethylbenzoic acid, ethyl 4-dimethylaminobenzoate, 4-dimethylaminobenzoic acid (n-butoxy)ethyl ester, 4-dimethylaminobenzoic acid Isoamyl ester, 2-ethylhexyl 4-dimethylaminobenzoate, 2,4-diethylthioxanthone, 2,4-diisopropylthioxanthone, and the like.

The content of the photopolymerization initiator (B3) relative to the urethane (meth) acrylate-based compound (B1) containing a polyoxyalkylene structure, the reactive fluorochemical (B2), and, if necessary, The total amount of the ethylenically unsaturated compound (B4) is preferably from 0.1 to 10 parts by weight, more preferably from 1 to 8 parts by weight, even more preferably from 1 to 5 parts by weight, per 100 parts by weight. If the content is too small, the curing speed at the time of ultraviolet curing tends to be extremely slow, and even if it is too much, the hardenability does not increase and there is no efficiency.

Further, in the present invention, in addition to the above components (B1) to (B4), a filler, an electrolyte salt, a dye, an oil, a plasticizer, a wax, a desiccant, a dispersant, a wetting agent, an emulsifier, or the like may be blended. A gelling agent, a stabilizer, an antifoaming agent, a leveling agent, a thixotropic imparting agent, an antioxidant, a flame retardant, a filler, a reinforcing agent, a matting agent, a crosslinking agent, and the like.

In addition to these, in order to suppress the curing shrinkage rate of the coating film, it is also possible to blend, for example, an unsaturated polyester resin, a vinyl urethane resin, a vinyl urethane resin, a polyisocyanate, a polyepoxide, an acrylic resin. , alkyd resins, urea resins, melamine resins, polyvinyl acetate, vinyl acetate copolymers, polydiene elastomers, saturated polyesters, saturated polyethers or nitrocellulose, cellulose A polymer such as a cellulose derivative such as acetate butyrate.

The urethane (meth) acrylate-based compound (B1) containing the polyoxy siloxane structure of the present invention, and the reactive fluorine-containing compound (B2) represented by the general formula (1), and photopolymerization initiation can be obtained. The agent (B3) is preferably a photocurable composition (ii) further containing an ethylenically unsaturated compound (B4).

The photocurable composition (ii) may be blended with an organic solvent and adjusted for viscosity, if necessary, and is usually diluted to 10 to 70% by weight, preferably 20 to 60% by weight, and applied to a substrate.

The organic solvent is, for example, an alcohol such as methanol, ethanol, propanol, n-butanol or isobutanol, a ketone such as acetone, methyl isobutyl ketone, methyl ethyl ketone or cyclohexanone, or a celluloid such as ethyl acetaminophen. An aromatic type such as a threon, toluene or xylene; a glycol ether such as propylene glycol monomethyl ether; an acetate such as ethyl acetate or butyl acetate; or diacetone alcohol. These organic solvents may be used singly or in combination of two or more.

Further, when the photocurable composition (ii) of the present invention is produced, the urethane (meth) acrylate-based compound (B1) containing a polyoxy siloxane structure, the reactive fluorochemical compound (B2), and light are used. For the method of blending the polymerization initiator (B3) and the ethylenically unsaturated compound (B4), for example, the separately produced (B1) to (B4) components can be blended in various orders, and (B1) and (B1) B4) After the same reaction system is produced, (B2) and (B3) are blended next. When an organic solvent such as ethyl acetate or methyl isobutyl ketone is used, An organic solvent is added to the above mixture, and each composition may be dissolved in an organic solvent.

Among these, it is preferable to blend (B1), (B2), and (B4) and finally add (B3).

In the present invention, the photocurable composition (ii) is applied to at least one side of the resin molded body [I] (when the composition diluted with an organic solvent is applied, it is further dried), and the active energy ray is irradiated. , can be hardened into a hardened resin layer [II]. The coating method is not particularly limited, and examples thereof include wet coating methods such as spraying, spraying, dipping, roll coating, spin coating, screen printing, and the like.

The film thickness after curing as the cured resin layer [II] is usually 1 to 50 μm, more preferably 3 to 30 μm.

For the active energy ray, for example, an ultraviolet ray, an ultraviolet ray, a near ultraviolet ray, an infrared ray, or the like, an electromagnetic wave such as an X-ray or a gamma ray, or an electron beam, a proton beam, a neutron beam or the like can be used, but the curing speed and the irradiation device are used. It is advantageous to use ultraviolet radiation for hardening, ease, and the like.

As a method of hardening by ultraviolet irradiation, 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 lamp, etc., which emit light in a wavelength range of 150 to 450 nm, is irradiated for about 100~. 3000mJ/cm ² can be used.

After ultraviolet irradiation, it can be heated to achieve complete hardening as needed.

In this way, the hardened resin layer [II] is formed on at least one side of the resin molded body [I].

In the present invention, a hardening of the photocurable composition (iii) containing the following components (C1), (C2) and (C3) is formed between the resin molded body [I] and the cured resin layer [II]. In the case of the resin layer [III], it is preferable from the viewpoint of improving the adhesion between the resin molded body [I] and the cured resin layer [II].

(C1) acrylic resin

(C2) an unsaturated compound containing two or more ethylenically unsaturated groups

(C3) Photopolymerization initiator

[Acrylic resin (C1)]

In the present invention, the acrylic resin (C1) is obtained by polymerizing a monomer component containing a (meth)acrylic monomer, and may be used alone or in combination of two or more.

The acrylic resin (C1) preferably contains a (meth)acrylate monomer (c1) as a main component as a polymerization component, and may optionally contain a functional group-containing monomer (c2) or other copolymerizable single. The body (c3) is used as a copolymerization component.

The (meth) acrylate monomer (c1) is, for example, an aliphatic (meth) acrylate monomer such as an alkyl (meth) acrylate or an aromatic compound such as phenyl (meth) acrylate. Acrylate based monomer.

The aliphatic (meth) acrylate monomer, for example, an alkyl group having a carbon number of usually 1 to 12, particularly preferably 1 to 10, more preferably 1 to 8 alkyl (meth)acrylate, Or (meth) acrylate having an alicyclic structure.

Specific examples of the (meth)acrylic acid alkyl ester include methyl (meth)acrylate, ethyl (meth)acrylate, n-butyl (meth)acrylate, and isobutyl (meth)acrylate. Tert-butyl (meth)acrylate, n-propyl (meth)acrylate, n-hexyl (meth)acrylate, 2-ethylhexyl (meth)acrylate, n-octyl (meth)acrylate, (A) Isodecyl acrylate, lauryl (meth)acrylate, whyl (meth)acrylate, stearyl (meth)acrylate, and the like.

Specific examples of the (meth) acrylate having an alicyclic structure include cyclohexyl (meth)acrylate and isodecyl (meth)acrylate.

Examples of the aromatic (meth) acrylate monomer include phenyl (meth) acrylate, benzyl (meth) acrylate, phenoxyethyl (meth) acrylate, and phenyl diethylene glycol ( Methyl) acrylate, 2-hydroxy-3-phenoxypropyl (meth)acrylate, phenoxy polyethylene glycol (meth) acrylate, phenoxy polyethylene glycol-polypropylene glycol-(A) Acrylate, nonylphenol ethylene oxide adduct (meth) acrylate, and the like.

Further, examples thereof include a (meth) acrylate monomer, for example, tetrahydrofurfuryl (meth) acrylate. These may be used alone or in combination of two or more.

Among the (meth) acrylate-based monomers (c1), methyl (meth) acrylate is preferably used from the viewpoints of excellent copolymerizability and coating film strength, ease of handling, and ease of obtaining raw materials. N-butyl methacrylate, isodecyl (meth) acrylate, and more preferably methyl (meth) acrylate.

As the functional group-containing monomer (c2), for example, a hydroxyl group-containing monomer, a carboxyl group-containing monomer, an alkoxy group- or phenoxy group-containing monomer, a mercapto group-containing monomer, and an amine group-containing monomer The body, the nitrogen-containing monomer, the monomer containing a glycidyl group, the monomer containing a phosphate group, the monomer containing a sulfonic acid group, and the like. These may be used alone or in combination of two or more.

As the above hydroxyl group-containing monomer, for example, 2-hydroxyethyl (meth)acrylate, 4-hydroxybutyl (meth)acrylate, 5-hydroxypentyl (meth)acrylate, (meth)acrylic acid 6- Hydroxyhexyl ester, 8-hydroxyoctyl (meth)acrylate, 10-hydroxydecyl (meth)acrylate, (meth)acrylic acid (4-hydroxymethylcyclohexyl)methyl ester, etc. A caprolactone-modified monomer such as ester or caprolactone modified 2-hydroxyethyl (meth)acrylate, 2-propenyloxyethyl-2-hydroxyethylphthalic acid, N-hydroxymethyl ( a monomer having a hydroxyl group of a first order such as methyl acrylamide or N-hydroxyethyl (meth) acrylamide; 2-hydroxypropyl (meth)acrylate; 2-hydroxybutyl (meth)acrylate; 2-hydroxy-3-phenoxypropyl (meth)acrylate, 3-chloro-2-hydroxypropyl (meth)acrylate, 2-hydroxy-3-phenoxypropyl (meth)acrylate, etc. a monomer having a hydroxyl group of a second order; a monomer having a hydroxyl group of a third order such as 2,2-dimethyl-2-hydroxyethyl (meth)acrylate.

Further, a polypropylene glycol derivative such as diethylene glycol mono(meth)acrylate or polyethylene glycol mono(meth)acrylate or a polypropylene glycol derivative such as polypropylene glycol mono(meth)acrylate may be used. , polyethylene glycol-polypropylene glycol-mono (meth) acrylate, poly (ethylene glycol-tetramethylene glycol) mono (meth) acrylate, poly (propylene glycol - tetramethylene glycol) single An oxygen-extended alkyl modified monomer such as (meth) acrylate.

The above carboxyl group-containing monomer, for example, acrylic acid, methacrylic acid, crotonic acid, maleic acid, maleic anhydride, itaconic acid, fumaric acid, acrylamide-N-glycolic acid, cinnamic acid, (methyl Michael addition of acrylic acid (for example: acrylic acid dimer, methacrylic acid dimer, acrylic acid trimer, methacrylic acid trimer, acrylic acid tetramer, methacrylic acid tetramer, etc.), 2- (Methyl) propylene oxiranyl ethyl dicarboxylic acid monoester (for example: 2-propenyl oxyethyl succinate monoester, 2-methyl propylene oxyethyl succinate monoester, 2- propylene oxime B Phthalic acid monoester, 2-methylpropenyloxyethyl phthalate Dicarboxylic acid monoester, 2-propenyl oxiranyl hexahydrophthalic acid monoester, 2-methyl propylene oxyethyl hexahydrophthalic acid monoester, etc.). Further, the carboxyl group-containing monomer may be used as it is, or may be used in the form of a salt after alkali neutralization.

The alkoxy group-containing monomer is, for example, 2-methoxyethyl (meth)acrylate, 2-ethoxyethyl (meth)acrylate, 3-methoxybutyl (meth)acrylate, 2-butoxyethyl (meth)acrylate, 2-butoxydiethylene glycol (meth)acrylate, methoxydiethylene glycol (meth)acrylate, methoxy (meth)acrylate Triethylene glycol ester, ethoxydiethylene glycol (meth)acrylate, methoxydipropylene glycol (meth)acrylate, methoxypolyethylene glycol (meth)acrylate, single (A) Base) acrylic octyloxy polyethylene glycol-polypropylene glycol ester, mono (meth) acrylate lauryl oxy polyethylene glycol ester, polyethylene glycol mono (meth) acrylate stearyl oxide, etc. Methyl) acrylate or the like.

The above-mentioned amidino group-containing monomer, for example, acrylamide, methacrylamide, N-(n-butoxyalkyl)propenylamine, N-(n-butoxyalkyl)methacrylamide , N,N-Dimethyl(meth)acrylamide, N,N-diethyl(meth)acrylamide, N,N-dimethylaminopropyl(meth)acrylamide, propylene Indole-3-methylbutylmethylamine, dimethylaminoalkyl acrylamide, dimethylaminoalkylmethacrylamide, and the like.

The above-mentioned amino group-containing monomer is, for example, dimethylaminoethyl (meth)acrylate, diethylaminoethyl (meth)acrylate or a tertiary compound thereof.

The above nitrogen-containing monomer, for example, acrylonitrile Porphyrin and the like.

The above-mentioned epoxy group-containing monomer is, for example, glycidyl (meth)acrylate or allyl epoxidized ether.

The above-mentioned phosphate group-containing monomer, for example, acid 2-(meth)propenyloxyethyl phosphate, bis(2-(meth)acryloxyethyl) acid phosphate, such as polyethylene glycol single Phosphate of methacrylate (for example, "Sipomer PAM100" manufactured by RHODIA Co., Ltd., "Sipomer PAM4000", etc.), and phosphate ester of polyethylene glycol monoacrylate (for example, "Sipomer made by RHODIA Rihua Co., Ltd." PAM5000", etc.), a phosphate ester of polypropylene glycol monomethacrylate (for example, "Sipomer PAM200" manufactured by RHODIA Corporation), and a phosphate ester of polypropylene glycol monoacrylate (for example, "Sipomer PAM300" manufactured by RHODIA Corporation Polyalkylene glycol mono(meth) acrylate phosphate, such as methylene (meth) acrylate, trimethylene (meth) acrylate, propylene A phosphate (alkyl) acrylate such as a (meth) acrylate or a tetramethylene (meth) acrylate.

The above sulfonic acid group-containing monomer, for example, an olefin sulfonic acid such as ethylene sulfonic acid, allyl sulfonic acid or methallyl sulfonic acid, 2-propenylamine-2-methylpropane sulfonic acid or styrene sulfonate Acid or its salt.

These functional group-containing monomers (c2) may be used alone or in combination of two or more.

As the other copolymerizable monomer (c3), for example, acrylonitrile, methacrylonitrile, styrene, α-methylstyrene, vinyl acetate, vinyl propionate, vinyl stearate, vinyl chloride, partial Dichloroethylene, alkyl vinyl ether, vinyl toluene, vinyl pyridine, vinyl pyrrolidone, dialkyl itaconate, dialkyl fumarate, allyl alcohol, acryl chloro, methyl vinyl ketone, N a monomer such as acrylamide methyltrimethylammonium chloride, allyltrimethylammonium chloride or dimethylallylvinylketone.

Further, in order to carry out the polymerization, ethylene glycol di(meth)acrylate, diethylene glycol di(meth)acrylate, triethylene glycol di(meth)acrylate, and polydi(di) may be used in combination. A compound having two or more ethylenically unsaturated groups such as ethylene glycol acrylate, propylene glycol di(meth)acrylate, or divinylbenzene.

(meth)acrylic acid (C1), (meth)acrylate monomer (c1), functional group-containing monomer (c2), and other copolymerizable monomer (c3), (meth)acrylic acid The ester monomer (c1) is preferably from 10 to 100% by weight, particularly preferably from 20 to 95% by weight, and the functional group-containing monomer (c2) is preferably from 0 to 90% by weight, particularly preferably from 5 to 80% by weight. %, the other copolymerizable monomer (c3) is preferably 0 to 50% by weight, particularly preferably 0 to 40% by weight.

In the present invention, as the acrylic resin (C1), a polymer having an alkyl (meth)acrylate having an alkyl group of 1 to 12 as a polymerization component is preferred, and in particular, methyl (meth)acrylate is used as a polymerization. to make The polymer is preferably a polymer having methyl methacrylate as a polymerization component, and more preferably, the polymethyl methacrylate is excellent in strength of the cured resin layer.

When the acrylic resin (C1) is polymerized, a conventionally known method such as solution radical polymerization, suspension polymerization, bulk polymerization, or emulsion polymerization can be employed. For example, a polymerizable monomer such as the above (meth)acrylate monomer (c1), a functional group-containing monomer (c2), or another copolymerizable monomer (c3) is mixed or added to an organic solvent, and polymerization is started. The initiator (azobisisobutyronitrile, azobisisovaleronitrile, benzammonium peroxide, etc.) is polymerized in a reflux state or at 50 to 90 ° C for 2 to 20 hours.

The glass transition temperature (Tg) of the acrylic resin (C1) is usually from 0 to 180 ° C, preferably from 15 to 175 ° C, particularly preferably from 50 to 130 ° C. If the glass transition temperature is too high, the relaxation effect of the heat shrinkage of the cured product tends to decrease, and if it is too low, the heat durability of the cured product tends to decrease.

The weight average molecular weight of the acrylic resin (C1) obtained in this manner is usually from 10,000 to 500,000, preferably from 10,000 to 100,000.

If the weight average molecular weight is too large, the strength of the cured resin layer tends to decrease, and if it is too small, the adhesion to various substrates such as a glass substrate or a plastic substrate or the appearance of the coating film tends to decrease.

Further, the degree of dispersion (weight average molecular weight / number average molecular weight) of the acrylic resin (C1) is usually from 1 to 4, preferably from 1.5 to 2.5.

In addition, the weight average molecular weight and the number average molecular weight are obtained by using a standard polystyrene molecular weight conversion, and are used in high-speed liquid chromatography ("Waters 2695 (main body)" and "Waters 2414 (detector)" manufactured by Waters Corporation, Japan). 3 columns in series: ShodexGPCKF-806L (excluding the limit molecular weight: 2 × 10 ⁷ , separation range: 100 ~ 2 × 10 ⁷ , theoretical layer: 10,000 layers / root, filler material: styrene-divinylbenzene copolymerization The particle size of the material and the filler was 10 μm. The degree of dispersion was determined from the weight average molecular weight and the number average molecular weight. Moreover, the glass transition temperature is calculated according to the Fox formula.

[Unsaturated Compound (C2) Containing Two or More Ethylene Unsaturated Groups]

In the present invention, an unsaturated compound (C2) containing two or more ethylenically unsaturated groups (hereinafter, In the case of "polyfunctional unsaturated compound (C2)"), it is contained in two molecules, preferably 2 to 15, more preferably 3 to 6 ethylenically unsaturated groups, and the latter is excluded (C4) ) A component containing a phosphate group-containing ethylenically unsaturated compound. The polyfunctional unsaturated compound (C2) may be used alone or in combination of two or more. For example, a bifunctional monomer, a trifunctional or higher monomer, a urethane (meth)acrylate compound, an epoxy (meth)acrylate compound, a polyester (meth)acrylate compound, or the like can be used. .

The above bifunctional monomer is a monomer containing two ethylenically unsaturated groups, for example, ethylene glycol di(meth)acrylate, diethylene glycol di(meth)acrylate, or di(meth)acrylic acid. Tetraethylene glycol ester, polyethylene glycol di(meth)acrylate, propylene glycol di(meth)acrylate, dipropylene glycol di(meth)acrylate, propylene glycol poly(meth)acrylate, di(a) Butyl acrylate, polytetramethylene glycol di(meth) acrylate, neopentyl glycol di(meth)acrylate, ethylene oxide modified bisphenol A type di(methyl) Acrylate, propylene oxide modified bisphenol A type di(meth) acrylate, 1,6-hexanediol di(meth) acrylate, 1,6-hexane diol ethylene oxide modification Di(meth)acrylate, 1,9-nonanediol di(meth)acrylate, 1,10-decanediol di(meth)acrylate, tricyclodecane dimethanol di(meth)acrylate Ester, glyceryl di(meth)acrylate, pentaerythritol di(meth)acrylate, ethylene glycol diglycidyl di(meth)acrylate, diethylene glycol diglycidyl di(methyl) Acrylate, diglycidyl phthalate II Methyl) acrylate, hydroxytrimethylacetic acid modified neopentyl glycol di(meth)acrylate, ethylene oxide modified diacrylate of isocyanuric acid, and the like.

The above trifunctional or higher monomer is a monomer containing three or more ethylenically unsaturated groups, for example, trimethylolpropane tri(meth)acrylate, di-trimethylolpropane tetra(meth)acrylic acid An ester, pentaerythritol tri(meth)acrylate, pentaerythritol tetra(meth)acrylate, pentaerythritol di(tri)(meth)acrylate, pentaerythritol ditetrakis(meth)acrylate, dipentaerythritol penta(meth)acrylate, Dipentaerythritol hexa(meth)acrylate, tris(meth) propylene methoxy ethoxy trimethylolpropane, ethoxylated glycerol tri(meth) acrylate, glycerol polyglycidyl ether poly(A) Acrylate, isocyanuric acid ethylene oxide modified tri(meth)acrylate, ε-caprolactone modified ginseng-(2-propenyloxyethyl)isocyanurate, ethylene oxide Modified dipentaerythritol penta(meth)acrylate, ethylene oxide modified dipentaerythritol hexa(meth)acrylate, ethylene oxide modified pentaerythritol tris(meth)acrylate, ethylene oxide modified four Pentaerythritol (meth)acrylate, caprolactone modified penta (meth)acrylic acid Dipentaerythritol ester, caprolactone modified dipentaerythritol hexa(meth)acrylate, caprolactone modified pentaerythritol tri(meth)acrylate, caprolactone modified pentaerythritol tetrakis(meth)acrylate, succinic acid modification Sexual tris(meth)acrylic acid pentaerythritol ester and the like.

The urethane (meth) acrylate type compound is a (meth) acrylate type compound having a urethane bond in the molecule, and examples thereof include a hydroxyl group-containing (meth)acrylic compound and a polyisocyanate. The compound (if necessary, the polyol compound) is obtained by a known general method, and has a weight average molecular weight of usually 300 to 50,000.

In the present invention, as the polyfunctional unsaturated compound (C2), pentaerythritol tri(meth)acrylate, pentaerythritol tetra(meth)acrylate, dipentaerythritol penta(meth)acrylate, hexa(meth)acrylic acid are preferable. The dipentaerythritol ester is particularly preferably a mixture of dipentaerythritol penta(meth)acrylate and dipentaerythritol hexa(meth)acrylate from the viewpoint of excellent coating film strength.

The content of the polyfunctional unsaturated compound (C2) is usually 10 to 900 parts by weight, preferably 10 to 500 parts by weight, particularly preferably 15 to 300 parts by weight based on 100 parts by weight of the acrylic resin (C1) (in terms of solid content). More preferably, it is 20 to 150 parts by weight, and more preferably 30 to 100 parts by weight.

If the content of the polyfunctional unsaturated compound (C2) is too large, the adhesion to the resin molded body [I] tends to decrease, and if the content is too small, the strength of the cured resin layer tends to decrease.

The photopolymerization initiator (C3) used in the present invention is, for example, the same as those exemplified in the above photopolymerization initiator (B3).

Moreover, as such an adjuvant, the same as the adjuvant of the photopolymerization initiator (B3) is mentioned.

Among these, benzyl dimethyl acetal, 1-hydroxycyclohexyl phenyl ketone, benzhydryl isopropyl ether, 4-(2-hydroxyethoxy)-phenyl (2-hydroxy-2- Propyl)ketone, 2-hydroxy-2-methyl-1-phenylpropan-1-one is preferred.

As the content of the photopolymerization initiator (C3), the total of the component (C2) and the component (C4) described later is When it is 100 parts by weight (in terms of solid content), it is preferably 0.1 to 20 parts by weight, particularly preferably 1 to 18 parts by weight, still more preferably 2 to 15 parts by weight.

If the content of the photopolymerization initiator (C3) is too small, there is a tendency for hardening failure. If too large, the mechanical properties such as hardness tend to decrease, or the embrittlement or coloring problem tends to occur.

In the present invention, when the photocurable composition (iii) further contains a phosphoric acid group-containing ethylenically unsaturated compound (C4), it is more preferable from the viewpoint of further improving the adhesion to the resin molded body [I].

[Ethyl phosphate-containing ethylenically unsaturated compound (C4)]

In the present invention, the phosphoric acid group-containing ethylenically unsaturated compound (C4) contains one or more phosphate groups in one molecule, preferably one to five, and one or more ethylenically unsaturated groups, and preferably one. ~3 unsaturated compounds. The phosphoric acid group-containing ethylenically unsaturated compound (C4) may be used alone or in combination of two or more.

As the phosphoric acid group-containing ethylenically unsaturated compound (C4), for example, 2-propenyloxyethyl acid phosphate (for example, "LIGHT ACRYLATE P-1A" manufactured by Kyoeisha Chemical Co., Ltd.), bis(2-propene)醯 oxyethyl) acid phosphate (for example, "LIGHT ACRYLATE P-2A" manufactured by Kyoeisha Chemical Co., Ltd.), 2-methacryl oxirane ethyl acid phosphate (for example, LIGHT manufactured by Kyoeisha Chemical Co., Ltd.) ESTER P-1M", etc.), bis(2-methacryloyloxyethyl) acid phosphate (for example, "LIGHT ESTER P-2M" manufactured by Kyoeisha Chemical Co., Ltd., "EM39" manufactured by Changxing Chemical Co., Ltd., Japan) "KAYAMER PM-2" manufactured by Pharmaceutical Co., Ltd.), a reaction product of 6-caprolactone adduct of 2-hydroxyethyl methacrylate and phosphoric anhydride (for example, "KAYAMER PM-21" manufactured by Nippon Kayaku Co., Ltd., etc. ), propylene oxime oxyethyl phosphate (for example, "VISCOAT #3PA" manufactured by Osaka Organic Chemical Industry Co., Ltd.), and methacrylic oxiranyl ethyl phosphate (for example, "VISCOAT #3PMA" manufactured by Osaka Organic Chemical Industry Co., Ltd. ", etc.), a phosphate of polyethylene glycol monomethacrylate (for example, "Sipomer PAM100" manufactured by RHODIA Corporation, "Si Pomer PAM4000", etc.), a phosphate ester of polyethylene glycol monoacrylate (for example, "Sipomer PAM5000" manufactured by RHODIA Corporation), and a phosphate ester of polypropylene glycol monomethacrylate (for example, RHODIA Corporation) Sipomer PAM200", etc.), a polypropylene ester of a polypropylene glycol monoacrylate (for example, "Sipomer PAM300" manufactured by RHODIA Corporation, etc.), a phosphate ester of a polyalkylene glycol mono(meth)acrylate, and a phosphoric acid Methyl (meth)acrylic acid Alkyl (meth) acrylate such as ester, trimethylene (meth) acrylate, propyl (meth) acrylate or tetramethylene (meth) acrylate. As the phosphate ester, one type or two or more types of a monoester, a diester and a triester can be used.

Further, examples thereof include vinylphosphonic acid, dimethylvinylphosphonic acid, diethylvinylphosphonic acid, diisopropylvinylphosphonic acid, diisobutylvinylphosphonic acid, and dibutylvinylphosphonic acid. a monoethylenically unsaturated compound containing a phosphonic acid group such as phenylvinylphosphonic acid or p-vinylphenylphosphonic acid, divinylphosphonic acid, bis(diethylvinyl)phosphonic acid, bis(dimethylethylene) Phosphonic acid, bis(diisopropylvinyl)phosphonic acid, (diisobutylvinyl)phosphonic acid, (dibutylvinyl)phosphonic acid, bis(phenylvinyl)phosphonic acid, etc. An acid-based diethylenically unsaturated compound. These vinyl compounds may be used alone or in combination of two or more.

As the phosphoric acid group-containing ethylenically unsaturated compound (C4), it is preferably bis(2-(meth)acryloxyethyl) acid phosphate, 2-(meth) propylene methoxyethyl acid phosphate. Among these compounds, one type or two types may be used in combination.

The content of the phosphoric acid group-containing ethylenically unsaturated compound (C4) is usually 0.1 to 30 parts by weight, preferably 0.1 to 20 parts by weight, based on 100 parts by weight of the acrylic resin (C1) (solid content). It is 0.5 to 10 parts by weight, more preferably 1 to 5 parts by weight.

If the content of the phosphoric acid group-containing ethylenically unsaturated compound (C4) is too large, the adhesion to the substrate of the resin molded body [I] or the strength of the cured resin layer tends to decrease, and too little also has a substrate adhesion. The tendency to decline in sex.

The photocurable composition (iii) used in the present invention contains the acrylic resin (C1), the polyfunctional unsaturated compound (C2), the photopolymerization initiator (C3), and preferably further contains a phosphate group. The ethylenically unsaturated compound (C4), but may further contain a decane coupling agent (C5).

[Hydrane coupling agent (C5)]

a decane coupling agent (C5), for example, an epoxy group-containing decane coupling agent, a (meth)acrylonitrile-based decane coupling agent, a mercapto group-containing decane coupling agent, a hydroxyl group-containing decane coupling agent, Carboxyl-containing decane A coupling agent, an amine group-containing decane coupling agent, a mercapto group-containing decane coupling agent, an isocyanate group-containing decane coupling agent, and the like, and a (meth)acrylonitrile-based decane coupling agent is preferred. One of these may be used alone or two or more of them may be used in combination.

For example: 3-aminopropyltrimethoxydecane, 3-aminopropyltriethoxydecane, 3-(2-aminoethyl)aminopropyltrimethoxydecane, 3-anilinopropyl Trimethoxydecane, 3-glycidoxypropyltrimethoxydecane, 3-glycidoxypropylmethyldimethoxydecane, 3-glycidoxypropylmethyldiethoxylate Baseline, 2-(3,4-epoxycyclohexyl)ethyltrimethoxydecane, vinyltriethoxydecane, vinyltrimethoxydecane, vinyltriethoxydecane, allyltrimethyl Oxy decane, 3-(methyl) propylene oxypropyl trimethoxy decane, 3-(methyl) propylene oxypropyl methyl dimethoxy decane, 3-mercaptopropyl trimethoxy decane, 3 - mercaptomethyl dimethoxydecane, 3-mercaptotriethoxydecane, preferably 3-(methyl)propenyloxypropyltrimethoxydecane.

The content of the decane coupling agent (C5) is usually 0.1 to 30 parts by weight, preferably 0.1 to 20 parts by weight, particularly preferably 0.5 to 10 parts by weight, per 100 parts by weight of the acrylic resin (A) (solid content). More preferably, it is 1 to 5 parts by weight. When the content of the decane coupling agent (C5) is too large, the strength and the appearance of the cured resin layer tend to decrease, and if the content is too small, the adhesion to the substrate of the resin molded body [I] tends to decrease.

The photocurable composition (iii) used in the present invention may further contain a filler, an electrolyte salt, a dye, an oil, a plasticizer, a wax, a desiccant, a dispersant, a wetting agent, an emulsifier, and a gelation. Agent, stabilizer, antifoaming agent, coating agent, thixotropic agent, polymerization inhibitor, antioxidant, flame retardant, filler, reinforcing agent, matting agent, crosslinking agent, ultraviolet absorber, light stabilizer, etc. . Moreover, in order to provide antistatic property or electroconductivity, a metal salt such as a lithium salt, a conductive filler such as a metal oxide, a conductive polymer, an antistatic agent, or the like may be contained.

However, when the photocurable composition (iii) used in the present invention does not contain inorganic fine particles such as cerium oxide, it is preferable from the viewpoints of transparency of the cured resin layer and stability or mutual solubility of the photocurable composition (iii). .

The photocurable composition (iii) used in the present invention may be used after being adjusted to have an organic solvent and optionally adjusting the viscosity. The organic solvent, for example, an alcohol such as methanol, ethanol, propanol, n-butanol or isobutanol, Ketones such as acetone, methyl isobutyl ketone, methyl ethyl ketone, cyclohexanone, acesulfames such as ethyl cyanidin, aromatics such as toluene and xylene, propylene glycol monomethyl ether, propylene glycol monomethyl ether acetate Examples include glycol ethers, acetates such as ethyl acetate and butyl acetate, and diacetone alcohol. These organic solvents may be used alone or in combination of two or more.

In the case of using two or more types, from the viewpoint of the appearance of the cured resin layer, it is preferred to use a combination of acetates such as ethyl acetate and butyl acetate, and acetates such as ethyl acetate and butyl acetate with aromatics such as toluene. a combination of a ketone such as methyl ethyl ketone or methyl isobutyl ketone with an alcohol such as methanol or propanol; a ketone such as methyl ethyl ketone or methyl isobutyl ketone; an alcohol such as methanol or propanol or an aromatic compound such as toluene; Combinations, etc.

The photocurable composition (iii) used in the present invention can be usually diluted with 10 to 60% by weight, preferably 20 to 40% by weight, and coated with the above organic solvent.

When the photocurable composition (iii) of the present invention is produced, it is preferred to further mix the phosphoric acid-containing ethylene with respect to the mixed acrylic resin (C1), the polyfunctional unsaturated compound (C2), and the photopolymerization initiator (C3). As the method of the unsaturated compound (C4) and the decane coupling agent (C5), various methods can be employed.

For example, after mixing an acrylic resin (C1) and a polyfunctional unsaturated compound (C2), adding a phosphoric acid group-containing ethylenically unsaturated compound (C4), adding a decane coupling agent (C5), and finally adding a photopolymerization initiator The method of (C3) is preferably a solution prepared by dissolving an acrylic resin (C1) and a polyfunctional unsaturated compound (C2) in an organic solvent such as ethyl acetate or toluene, and a phosphoric acid containing dissolved in an organic solvent. The ethyl group is not mixed with the compound (C4), and the decane coupling agent (C5) and the photopolymerization initiator (C3) are sequentially mixed.

In the present invention, after the photocurable composition (iii) is applied to the resin molded body [I], it can be cured by irradiation with an active energy ray to form a cured resin layer on the resin molded body [I]. III]. Further, the above-mentioned cured resin layer [II] is formed on the cured resin layer [III], and the resin molded body [I] and the cured resin layer [II] are firm.

In this case, the cured resin layer [III] is preferably formed on the resin molded body [I], and the photocurable composition (ii) is applied thereon and cured to form a cured resin layer [II]. When the hardened resin layer [II] is formed, it can be carried out in accordance with the method in which the cured resin layer [II] is formed on the above-mentioned resin molded body [I].

The above coating method is, for example, a wet coating method such as spraying, spraying, dipping, flow coating, gravure coating, roll coating, spin coating, screen printing or the like.

As the active energy ray, electromagnetic waves such as far ultraviolet rays, ultraviolet rays, near ultraviolet rays, and infrared rays, and electromagnetic waves such as X-rays and γ-rays can be used, and an electron beam, a proton beam, a neutron beam, or the like can be used, but the curing rate and the irradiation device are obtained. It is advantageous to use hardening by ultraviolet irradiation for factors such as easiness, price, and the like.

Examples of the method of curing by ultraviolet irradiation include 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 lamp, an LED, etc., which emit light in a wavelength range of 150 to 450 nm. irradiation of about 30 ~ 3000mJ / cm ² of the method.

After ultraviolet irradiation, it can be heated to achieve complete hardening as needed.

The film thickness after curing as the cured resin layer [III] is usually preferably from 1 to 30 μm, particularly preferably from 2 to 20 μm. If the film thickness is too thick, the heat load such as the boiling water immersion test is large, and the heat shrinkage of the cured resin layer [III] in the durability test is increased, and the adhesion to the substrate tends to be lowered. On the other hand, if it is too thin, there is a tendency that the target surface hardness cannot be obtained in the case of the ultraviolet cured film.

In the present invention, the laminate of the resin molded body [I] formed with the cured resin layer [II] or the cured resin layer [III] is formed on the resin molded body [I] to form a cured resin layer. [II] laminate.

The pencil hardness of the surface of the cured resin layer [II] of the laminate of the present invention is preferably 3H or more from the viewpoint of durability of the protective sheet. The pencil hardness is preferably 3H~10H, especially 4H~8H. When the pencil hardness is adjusted to the above range, a method of appropriately controlling the type of the cured resin layer [II] or the blending amount of the component may be mentioned.

The laminate of the present invention can form an adhesive layer on one side and form a protective sheet with an adhesive layer. The material of the adhesive layer is not particularly limited, and an acrylic or an anthrone-based adhesive can be suitably used.

Further, in the laminate of the present invention, a transparent conductive film can be formed on one side and a touch panel can be produced. The material of the transparent electrode is not particularly limited, and examples thereof include an inorganic conductive film such as ITO or IGZO, and an organic conductive film such as PEDOT. The surface resistivity of the transparent conductive film is preferably 1000 Ω/□ or less, more preferably 10 to 900 Ω/□ or less, and still more preferably 200 to 800 Ω/□ or less. If the surface resistance value is too high, the conductivity tends to be insufficient.

Example

The present invention will be more specifically described by the following examples, but the present invention is not limited to the following examples as long as it does not exceed the gist thereof.

In the examples, "parts" and "%", unless otherwise specified, mean the basis of weight.

Further, the evaluation was carried out as follows.

(1) Antifouling

(ink wipeability)

The surface of the resin molded body was lined with a blue magic ink, and after standing for 24 hours, the appearance of the wet cloth after wiping was visually observed and evaluated as follows.

○‧‧‧Can wipe clean

△‧‧‧ Although wiped, but the traces remain

×‧‧‧Cannot wipe

(ink hole)

A line of blue magic ink was drawn on the surface of the resin molded body to visually observe the trajectory of the magic ink, and was evaluated in the following manner.

○‧‧‧Ink was bounced and the stitches were spotted

△‧‧‧Ink was bounced and the stitches became thinner

×‧‧‧Ink did not bounce off

(2) Pencil hardness

The pencil hardness of the side surface of the hardened resin layer [II] of the laminate was measured in accordance with JIS K 5600-5-4.

(3) Transparency (%)

The total light transmittance (%) was measured using a haze meter "NDH-2000" manufactured by Nippon Denshoku Co., Ltd.

(4) Adhesion

According to JIS K 5400 (1990 edition), the evaluation was carried out 48 hours after the initial and 65 ° C 95% RH by the checkerboard tape method.

<Example 1>

[Preparation of photocurable composition (i)]

10 parts of the following 6-functional urethane acrylate as the polyfunctional urethane (meth) acrylate type compound (A1), and a polyfunctional (meth) acrylate type compound (A2) containing an alicyclic skeleton ) bis(hydroxymethyl)tricyclo[5.2.1.0 ^2,6 ]decane=dimethacrylate ("DCP" manufactured by Shin-Nakamura Chemical Co., Ltd.) 90 parts, as a photopolymerization initiator (A3) One part of -hydroxycyclohexyl phenyl ketone ("Irgacure 184" manufactured by Kabart Chemical Co., Ltd.) was stirred at 60 ° C until uniform, and then filtered through a 50 μm filter to obtain a photocurable composition (i).

[6-functional amine acrylate]

A mixture of isophorone diisocyanate 192.0 g (0.86 mol Hydroxyl valence: 120 mg KOH/g)] 808.0 g (1.73 mol), and 0.01 g of hydroquinone methyl ether as a polymerization inhibitor and 0.01 g of dibutyltin dilaurate as a reaction catalyst were added at 60 ° C for 8 hours. The reaction was terminated when the residual isocyanate group became 0.3% or less to obtain a 6-functional urethane acrylate.

[Production of Resin Mold [I]]

The photocurable composition (i) was injected at 23 ° C for a molding die in which two optical polishing glasses were opposed to each other and a crucible having a thickness of 0.2 mm was used as a spacer, and a metal halide lamp was used to have a light amount of 20 J/cm from both sides. ² Irradiation of ultraviolet light. The resin sheet obtained by demolding was heated in a vacuum oven at 150 ° C for 2 hours to obtain a resin molded body [I] having a length of 400 mm, a width of 300 mm, and a thickness of 0.2 mm. The obtained resin molded body [I] had a total light transmittance of 92%, a glass transition temperature of 250 ° C or higher, a pencil hardness of 5H, and a bending elastic modulus of 4 GPa.

[Manufacture of a urethane (meth) acrylate-based compound (B1) containing a polyoxyalkylene structure]

In a four-necked flask equipped with a thermometer, a stirrer, a water-cooled condenser, and a nitrogen gas inlet, a hexamethylene diisocyanate trimer (y2) (isocyanate group content 21.0%) 90.6 g, the above formula (5) was charged. a polyoxyalkylene-based compound (y1) (R ¹ =-C ₂ H ₄ OC ₃ H ₆ -, R ² =methyl, R ³ =-C ₃ H ₆ OC ₂ H ₄ -, a=9, b=1, c=1, hydroxyl value 120 mgKOH/g) 70.6 g, dipentaerythritol pentaacrylate (y3) [mixture of dipentaerythritol pentaacrylate and dipentaerythritol hexaacrylate acrylate (hydroxyl price 50 mgKOH/g)] 169.4 g, 0.10 g of dibutyl dilaurate, 500 g of methyl ethyl ketone, reacted at 60 ° C for 3 hours, and added dipentaerythritol pentaacrylate (y3) [yix acrylic acid] at a time point of about 1 hour when the residual isocyanate group became 0.76%. a mixture of pentaerythritol ester and dipentaerythritol hexaacrylate (hydroxyl price 50 mgKOH/g)] 169.4 g, and 2,6-di-t-butyl cresol 0.4 g, and the reaction is continued in this state, and the reaction is terminated at the point when the isocyanate group disappears. A solution containing a polyoxyalkylene group-containing urethane (meth) acrylate compound (B1) (solid content concentration: 50%).

[Preparation of photocurable composition (ii)]

As the reactive fluorine-containing compound, (B2) (weight of the molecular weight: 20,000) shown in Table 1 was prepared.

The urethane (meth) acrylate (B1) solution containing the polyoxy siloxane structure (100 parts in terms of solid content) and the reactive fluorochemical (B2) (in terms of solid content) 1))), "Irgacure 184" (4 parts in terms of solid content) manufactured by BASF JAPAN Co., Ltd. as a photopolymerization initiator (B3) was blended so as to have a ratio shown in Table 2, and a photocurable composition (ii) solution was obtained. .

[Manufacture of laminate]

The photocurable composition (ii) solution was applied onto the resin molded body [I] using a 50 μm applicator so that the film thickness after drying became 15 μm, and dried at 60 ° C for 5 minutes, and then a high pressure mercury lamp was used. 80 W, 1 lamp, ultraviolet light irradiation (cumulative irradiation amount: 450 mJ/cm ² ) was applied twice from a height of 18 cm at a conveyor speed of 5. lm/min to form a cured resin layer [II] (film thickness: 15 μm). The properties were evaluated in the above manner for the obtained laminate. The evaluation results are shown in Table 2.

<Example 2>

[Preparation of photocurable composition (iii)]

100 parts of polymethyl methacrylate (weight average molecular weight: 43,000) which is an acrylic resin (C1), and dipentaerythritol pentaacrylate (five acrylic acid) as an unsaturated compound (C2) containing two or more ethylenically unsaturated groups 46.2 parts of a mixture of dipentaerythritol ester and dipentaerythritol hexaacrylate ("KAYARAD DPHA", manufactured by Nippon Kayaku Co., Ltd.), 1-hydroxycyclohexyl phenyl ketone (manufactured by BASF Corporation) as a photopolymerization initiator (C3) 6 parts of "Irugacure 184") were blended and diluted with a mixed solvent of ethyl acetate/butyl acetate (73/27) to have a solid concentration of 35% to obtain a photocurable composition (iii) solution.

[Manufacture of laminate]

The photocurable composition (iii) solution was applied onto the resin molded body [I] using a No. 7 bar coater so that the film thickness after drying became 5 μm, and after drying at 80 ° C for 3 minutes, a high pressure mercury lamp was used. 80 W, 1 lamp, ultraviolet light irradiation (accumulated irradiation amount: 500 mJ/cm ² ) was performed twice from a height of 18 cm at a conveyor speed of 5. lm/min to form a cured resin layer [III]. Next, a photocurable composition (ii) solution was applied onto the cured resin layer [III] using a 50 μm applicator so that the film thickness after drying became 15 μm, and after drying at 60 ° C for 5 minutes, a high-pressure mercury lamp 80 W was used. Two lamps were subjected to two-pulse ultraviolet irradiation (cumulative irradiation amount: 450 mJ/cm ² ) at a conveyor speed of 5. lm/min from a height of 18 cm to form a cured resin layer [II] (film thickness: 15 μm). With respect to the obtained laminate (resin molded body [I] / cured resin layer [III] / cured resin layer [II]), each property was evaluated as described above. The evaluation results are shown in Table 2.

<Example 3>

[Preparation of photocurable composition (iii)]

100 parts of polymethyl methacrylate (weight average molecular weight: 43,000) of the acrylic resin (C1), and dipentaerythritol pentaacrylate (pentaacrylate) as an unsaturated compound (C2) containing two or more ethylenically unsaturated groups 46.2 parts of a mixture of dipentaerythritol ester and dipentaerythritol hexaacrylate ("KAYARAD DPHA", manufactured by Nippon Kayaku Co., Ltd.), 1-hydroxycyclohexyl phenyl ketone (manufactured by BASF Corporation) as a photopolymerization initiator (C3) "Irugacure 184") bis(2-(methacryloyloxyethyl) acid phosphate (manufactured by Kyoeisha Chemical Co., Ltd.), which is blended and blended into a phosphoric acid-containing ethylenically unsaturated compound (C4). A photocurable composition (iii) solution was obtained in the same manner as in Example 2 except that 2.65 parts of "RIGHT ESTER P-2M" was used.

[Manufacture of laminate]

The cured resin layer [III] was formed in the same manner as in Example 2 except that the photocurable composition (iii) solution was used. Next, the cured resin layer [III] was formed in the same manner as in Example 2 on the cured resin layer [III]. With respect to the obtained laminate (resin molded body [I] / cured resin layer [III] / cured resin layer [II]), each property was evaluated as described above. The evaluation results are shown in Table 2.

<Comparative Example 1>

In the first embodiment, the hardened resin layer [II] was not formed, and the properties of the resin molded body [I] itself were evaluated as described above. The evaluation results are shown in Table 2.

From the above evaluation results, it is understood that the anti-fouling property cannot be obtained even when the resin molded body [I] is used as it is, and the laminate or the hardening of the cured resin layer [II] is formed on the resin molded body [I]. In the resin layer [III], the laminate of the cured resin layer [II] is formed in the resin molded body [I], and the adhesiveness is excellent, and it is excellent in antifouling property, and has high surface hardness and transparency.

Further, the above embodiments are shown in the specific form of the present invention, but the above embodiments are merely illustrative and not to be construed as limiting. The scope of the present invention is intended to include various modifications that are obvious to those of ordinary skill in the art.

[Industry Utilization]

The laminate of the present invention can be advantageously utilized in various optical materials, electronic materials. For example, it can be used for a protective sheet, a touch panel, a liquid crystal substrate, an organic/inorganic EL substrate, a PDP substrate, an electronic paper substrate, a light guide plate, a phase difference plate, an optical filter, and the like, various display members, and a disk substrate. Memory, recording applications, energy applications such as thin-film battery substrates and solar cell substrates, optical communication applications such as optical waveguides, and functional films, ‧ films, and various optical films. Further, in addition to optical materials and electronic materials, for example, materials for automobiles, materials for building materials, materials for medical use, and stationery can be used.

Claims (12)

A laminated body which is formed on at least one side of a resin molded body [I] obtained by curing a photocurable composition (i), and forms a cured resin layer having a contact angle with water of 100 or more [II] ] made. The laminate according to the first aspect of the invention, wherein the photocurable composition (i) comprises the following components (A1), (A2) and (A3); (A1) a polyfunctional carbamate ( Methyl)acrylate-based compound (A2) A polyfunctional (meth)acrylate-based compound (A3) photopolymerization initiator containing an alicyclic skeleton. The laminate according to claim 1 or 2, wherein the cured resin layer [II] is cured by a photocurable composition (ii) comprising the following components (B1), (B2) and (B3). (B1) a urethane (meth) acrylate-based compound (B2) containing a polyoxyalkylene structure, a reactive fluorochemical (B3) photopolymerization initiator represented by the following formula (1) [Wherein, R1, R2, R3, R4 are each independently a hydrogen atom or a methyl group X ₁ is an alkylene group; _X-2 is an arylene group; _X-3 as a substituent represented by the following general formula (2) or (3) X ₄ is an alkylene group or an alkyloxy group; X ₅ is an alkylene group; X ₆ is a hydrogen atom or an ester bond residue; a and b are each an integer of 1 to 30; and c and d are each 0. An integer of ~60 (except that the binding order of the constituent units is arbitrary)] The laminate of the first or second aspect of the invention, wherein the surface of the cured resin layer [II] of the laminate has a pencil hardness of 3H or more. The laminate according to claim 1 or 2, wherein the following components (C1), (C2) and (C3) are formed between the resin molded body [I] and the cured resin layer [II]. The cured resin layer [III] obtained by curing the photocurable composition (iii); (C1) The unsaturated resin (C3) photopolymerization initiator containing two or more ethylenically unsaturated groups in the acrylic resin (C2). The laminate according to claim 5, wherein the photocurable composition (iii) further contains the following component (C4); (C4) an ethylenically unsaturated compound containing a phosphoric acid group. The laminate of claim 1 or 2 has a thickness of 0.1 to 3 mm. The laminate according to claim 1 or 2, wherein an adhesive layer is formed on one surface of the laminate. The laminate of claim 1 or 2 is used as a protective sheet for a display. A protective sheet for a display, which is characterized in that it is composed of a laminate according to claim 9 of the patent application. The laminate according to claim 1 or 2 is used as a substrate for a touch panel. A touch panel characterized in that a laminate as in claim 11 is used as a substrate.