TW200909505A - Resin composition for optical use and resin material for optical use using the same - Google Patents

Abstract

Disclosed are a resin composition for optical use and a resin material for optical use, which are excellent in transparency, while having adequate adhesiveness and impact absorption. The resin composition for optical use and the resin material for optical use are low in skin irritation and thus easily handled. In addition, since the resin composition and the resin material do not erode constitutional materials of a panel for an image display device, they are suitably used for image display devices. Specifically disclosed is a resin composition for optical use containing a (meth)acrylic acid derivative polymer (A), a monofunctional (meth)acrylic acid derivative monomer (B) and a di- or higher functional (meth)acrylic acid derivative (C).; In this resin composition for optical use, the monomer (B) contains a (meth)acrylic acid monomer (B1) represented by the general formula (1) below and at least one substance (B2) selected from the group consisting of polyalkyleneoxyalkyl ether (meth)acrylates having 4 or more repeating units and polyalkyleneoxy (meth)acrylates having 4 or more repeating units. [chemical formula 1] CH2=CHCO(OClH2l)mOCnH2n+1 (1) (In the formula, l represents an integer of 2-4; m represents 0 or 1; and n represents an integer of 8-18.)

Description

200909505 IX. Description of the Invention [Technical Field of the Invention] The present invention relates to a protective member for a panel for image display. [Prior Art] A representative image display panel, for example, a liquid crystal image display device. The liquid crystal image display device is composed of an optical film such as a liquid crystal cell and a polarizing plate attached to the outer surfaces thereof, and the liquid crystal cell has a thickness of about 1 mm by forming a transparent electrode, a pixel pattern, or the like on the surface in advance. A gap between the pair of glass substrates is made by interposing a micron gap, and the liquid crystal is injected and sealed. The display device thus constructed is a display member having a small thickness and being easily damaged. Therefore, 'especially in mobile phones, game consoles, digital cameras, and automotive parts, etc.' is generally attached to the front of the display device, and a transparent front panel (protective panel) is provided for a certain space. In the video liquid crystal display device, a polarizing plate is provided on the front surface of the liquid crystal panel. The surface of the polarizing plate is subjected to an anti-glare (AG_Anti-Glare) treatment to reduce the reflection of the light in front of the device and thereby improve the visibility. In the case of a large-sized display device, generally, in order to improve the shock absorption of the device, a member such as a front panel is not separately provided, and the entire liquid crystal panel and the entire device have impact resistance. The problem with such large-sized image liquid crystal display devices is that the image appears to be faded by the AG process. In addition, if the surface of the display device is touched, the liquid crystal panel is deflected to cause the image to become disordered, and The relationship between -5 and 200909505 makes the surface dirty and not easy to fall, and if it is strongly wiped, it is easy to cause damage. In addition, with the increase in the size of the liquid crystal panel, the impact resistance of the liquid crystal panel itself may be lowered, which may cause problems in the punching resistance of the display device. In view of the above situation, the front panel of the liquid crystal panel can be considered, and the front panel subjected to anti-reflection (AR: Anti-Reflection) treatment is provided to eliminate the defect caused by the AG processing. However, there is air between the front panel and the liquid crystal panel, that is, when the space is formed, the transmittance may be lowered or the image quality due to the double mapping may be lowered. Therefore, there has been proposed a space for breaking between the front panel and the liquid crystal panel with a resin or the like (refer to Patent Documents 1, 2, 3 and 4). When a video display device (display) is applied to a television, the display device is not allowed to fly around or cause the steel ball to pass through when the display device performs the impact resistance test based on the drop of the steel ball due to the UL specification or the radio wave ban method (Japan). member. At present, in a glass tube (CRT: Cathode Ray Tube) which is widely used, in order to satisfy the above specifications, it is necessary to design the thickness of the glass plate to be thick, and the overall weight of the CRT tends to become heavier. Therefore, as a means for arranging the self-healing synthetic resin protective film on the surface of the glass sheet as a means of increasing the thickness of the glass sheet and preventing the display device from being scattered (refer to Patent Document 5 and 6). In addition, in the plasma display panel (PDP: Plasma Display Panel) which has been attracting attention as an example of a flat panel display (FPD: Flat Panel Display), in order to prevent the panel portion from being broken, it is attached to the front side of the 200909505 PDP (visible side). ), a front panel such as glass having a thickness of about 3 mm is provided by interposing a space of about 1 to 5 mm. However, as the size of the pop-up's front panel has gradually increased, the overall weight of the PDP has become heavier. Therefore, in order to prevent the image display device (display) from being broken, a technique of "stacking a specific resin on the surface of the display or laminating an optical filter in which a specific resin is laminated on the surface of the display" has been proposed ( Refer to Patent Documents 7, 8, 9, and 10). Patent Document 1: Japanese Laid-Open Patent Publication No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. Japanese Patent Laid-Open No. Hei 06-333515 (Patent Document 6) Japanese Patent Application Laid-Open No. Hei. No. Hei. No. Hei. [Patent Document 9] Japanese Patent Laid-Open Publication No. Hei. No. Hei. No. Hei. No. 2007-9115. The problem to be solved is as described above, and various techniques for the purpose of protecting the image display device are described. However, when these techniques are applied to a large-sized liquid crystal image display device, satisfactory results cannot be obtained. Further development. Specifically, in the above document 1, the grease is poured into the space, and 200909505 is not easily sealed to prevent leakage. In addition, grease may intrude into the material of the liquid crystal panel, and may cause grease to leak when the front panel is broken, so further improvement is required. Further, the unsaturated polyester used in the above Document 2 is easily colored in yellow, and thus is not suitable for use in a display. In the case of the above-mentioned document 3, since the adhesion is small, it is necessary to separately prepare an adhesive when fixing. Not only is the process cumbersome, but also the adhesion to the adhesive is weak, and when the impact force is applied to the machine, peeling may occur to allow the bubbles to enter. Further, the polymer of the acrylic monomer used in the above Document 4 has a tendency to have a weaker adhesion. Therefore, in the case of a small machine, it is not necessary to separately prepare an adhesive, but in order to maintain the front plate of a large display, an additional adhesive is required, which makes the process cumbersome. Further, since the raw material of the polymer is composed only of a single monomer, the viscosity tends to be low and the hardening shrinkage tends to be large, and it is difficult to uniformly produce a large-area film. Further, in the above documents 5 and 6, the anti-scattering property is achieved by laminating the self-healing synthetic resin protective film on the glass, but this does not have the function of preventing the glass from being broken. Further, in the above documents 7 and 8, the resin composition to be used has not been specially created, and the means for imparting adhesion or transparency to the resin is still unclear. In particular, in the above-mentioned document 7, the moisture resistance reliability of the resin is not created. When the resin having the composition specifically shown in the examples is applied to a display, in the moisture resistance test, the resin is white turbid in a short time. . With respect to the resin-based package -8 - 200909505 specifically containing the acrylic acid shown in the above-mentioned document 8', the resin was white turbid in the humidity test at normal time. In addition, the resin material also has the problem of corroding the metal it contacts when it is tested for moisture resistance. Further, the above documents 7 and 8 are not sufficiently discussed in terms of achieving good impact absorption. In the above-mentioned document 8, the thickness of the impact resistant layer composed of the resin is formed to be 2 to 1 min, but it is not disclosed whether or not the impact absorbability can be improved by increasing the thickness thereof. In the above-mentioned document 9, the heat-resistant property was created. However, from the raw material composition of the disclosed resin, it was found that the impact resistance could not be greatly improved. Further, the thickness of the resin layer of the example was 1 mm, and it was difficult to obtain better impact absorbability. Further, the resin ' disclosed in the examples of the above document 9 is a relatively soft resin even after hardening. Therefore, when the thickness of the front filter is increased, the surface hardness of the filter may be lowered to cause a problem of scratch resistance. Further, the material disclosed in the above document 10 has good scratch resistance and impact absorption at the time of moisture absorption, but the material is highly irritating to the skin, and therefore it is necessary to pay attention to its disposal. In view of the above circumstances, a first object of the present invention is to provide a coating having good transparency, moderate adhesion, and shock absorption required for protecting an image display device, and having low skin irritation and easy handling. In addition, it does not intrude into the constituent material of the panel for an image display device, and is suitable for an optical resin composition for use in an image display device and an optical resin material using the same. Further, a second object of the invention is to provide an optical resin composition suitable for use in an image display device having excellent moisture resistance and an optical resin sheet using the same. 200909505 (Means for Solving the Problem) The optical resin composition of the present invention contains: (A) (meth)acrylic derivative polymer; (B) 1-functional (meth)acrylic derivative And (C) a bifunctional or higher (meth)acrylic derivative characterized by the above (B) monofunctional (meth)acrylic derivative monomer, comprising: (B1) in the following general At least one of the (meth)acrylic monomers represented by the formula; [Chemical Formula 1] CH2=CHCO(OC1H21)mOCnH2n+1 (1) (wherein 1 is an integer of 2 to 4, and m is 0 or 1 , η is an integer of 8 to 18) and (Β2) a polyolefin oxyalkyl ether (meth) acrylate having a repeating unit number of 4 or more and a polyolefin oxy group (methyl) having a repeating number of 4 or more At least one selected from the group consisting of acrylates. Here, the (?) monofunctional (meth)acrylic derivative monomer preferably contains at least an alkyl (meth)acrylate. The alkyl (meth)acrylate preferably has a branched structure. The alkyl (meth)acrylate having a branched structure preferably contains 2-Ethylhexyl Acrylate. Further, the above (B) monofunctional (meth)acrylic derivative monomer' preferably contains at least a polyolefin oxyalkyl ether (meth) acrylate. Polyolefin oxyalkyl ether (meth) acrylate, preferably containing monomethyl pentylene glycol acid methyl acrylate (Nonaethylene Glyeol

Monomethyl Ether Methacrylate ). -10- 200909505 The above (A) (meth)acrylic derivative polymer is preferably a copolymer of an alkyl acrylate having a carbon number of 4 to 18 and an acrylate having a hydroxyl group. For example, '(A)(meth)acrylic derivative polymer, preferably 2-ethylhexyl acrylate and 2-hydroxyethyl acrylate (2_)

Copolymer of Hydroxyethyl Acrylate). The (a) (meth)acrylic derivative polymer' preferably has a weight average molecular weight of 1 Å, 〇〇〇 7 〇〇, and 〇〇〇. The optical resin composition of the present invention preferably contains (D) a polymerization initiator. (D) The polymerization initiator is preferably a photopolymerization initiator. The photopolymerization initiator preferably comprises: (d) an α-hydroxyxyalkylphenone (α_ Hydroxyalkyl Phenone) compound; (d2) a fluorenylphosphine oxide (Acyl Phosphine Oxide) compound; (d3) low ( 2-hydroxy-2-methyl-1(4-(1-methylvinyl)phenyl)propanone): and (d4)oxy-phenyl-acetic acid 2-[2-oxo-2-phenyl At least one selected from the group consisting of -acetoxy-ethoxy]-ethyl ester and a mixture of oxy-phenyl-acetic acid 2-[2-trans-ethoxy]-ethyl acetate . The optical resin material of the present invention is characterized in that it is composed of a cured product of the above-mentioned optical resin composition of the present invention. The optical resin material desirably has the shape of a sheet or a film. This application is based on the Japanese Patent Application No. 2007-161439 filed by the same applicant on June 19, 2007, and the Japanese Patent Application No. 2008-100191 filed on April 8, 2008 with the applicant. With priority to claim, reference is made to the specification of these applications, and a part of the application -11 - 200909505 is hereby incorporated herein. Advantageous Effects of Invention The optical resin composition of the present invention and the optical resin material comprising the cured product are suitable for imagery because of low skin irritation and good transparency and impact absorption. In the use of optical filters for display devices and image display devices. For example, when the optical resin composition and the resin material of the present invention are applied to a transparent resin layer of an image display device, good moisture resistance reliability and impact absorbability can be achieved in the image display device. [Embodiment] Hereinafter, the present invention will be described in detail. The first aspect of the present invention is characterized by comprising (A) a (meth)acrylic derivative polymer; a specific (B) monofunctional (meth)acrylic derivative monomer; and (C) An optical resin composition of a bifunctional or higher (meth)acrylic derivative. In the optical resin composition of the present invention, as described above, the polymer of the component (A), the component (B) which is a diluent monomer, and the component (C) which is a bridging agent are used in combination. The compatibility of these components improves the solubility of the polymer component. Therefore, even if a polymer having a high molecular weight is used, a resin composition having good transparency and a cured product thereof can be obtained. Further, by using a resin composition containing a polymer having a relatively high concentration of a high molecular weight, it is possible to realize a member having good impact absorption even if the film thickness is thin. Further, in the light-refractory resin composition of the present invention, by diluting the polymer component with a specific monomer component, it is possible to form the resin composition without diluting the resin composition, and it is easy to produce it. A film or sheet of air bubbles having a thickness. The components (A) to (C) constituting the optical resin composition of the present invention will be described below. Component (A): The (A) (meth)acrylic derivative polymer used in the present invention is generally known to include at least a bulk polymerization, a solution polymerization, a suspension polymerization, an emulsion polymerization, and the like. In the method, a polymer obtained by polymerizing one or two or more kinds of monomeric compounds having one (meth)acrylic acid polymerizable unsaturated bond in a molecule is polymerized. As long as the effect of the present invention is obtained, other monomer compounds having two or more polymerizable unsaturated bonds of (meth)acrylic acid in the molecule may be used as the monomer compound, and used as The polymer obtained by copolymerization of these compounds. (A) (meth)acrylic derivative polymer, in addition to the above (meth)acrylic monomer compound, may add another monomer compound having a polymerizable unsaturated bond, and these compounds may be added. A polymer obtained by copolymerization. In the molecule of the (A) (meth)acrylic derivative polymer, it is preferred to impart a polar group in advance for the purpose of improving the adhesion to the glass plate. Examples of the polar group which can effectively improve the adhesion include, for example, a hydroxyl group, a carboxyl group, a cyano 'glycidyl group and the like. The introduction of these polar groups can be achieved, for example, by copolymerizing a monomer compound having a polar group with a (meth)acrylic monomer compound. By introducing a polar group such as a hydroxyl group into the polymer of -13-200909505, white turbidity can be caused in the tree. Further, these film or sheet film members can be omitted. The ((meth)acrylic acid or a derivative of these is polymerizable unsaturatedly bonded acrylic acid, methyl (meth)acrylic acid isobutyl methacrylate, (isodecyl enoate, (methyl urethane, ( Methyl)propyl)alkyl acrylate; (meth) propylene (meth) propylene alkyl ester; (meth) propylene ethyl diethylene glycol ether (meth) propylene (meth) acrylate The enoate and methyl di-lipid composition have moderate polarity and prevent moisture absorption, and can have high adhesion when forming a film or a sheet from a resin composition. Adhesive sheets or thin adhesives are used for bonding. Table A) The monomer compound of the (meth)acrylic derivative polymer in a device such as a display panel contains acrylic acid and methacryl. Specific examples of a monomer compound having one (meth)acrylic acid in the molecule For example, as described below, propionic acid, Acrylic Amide, ester, n-butyl (meth)acrylate, 2-ethylhexyl (meth)methyl)acrylate, (methyl) Propyl) n-octyl acrylate, (meth)acrylic acid a (meth)acrylic acid alkanoic acid N such as a (meth)acrylic acid methacrylate such as benzyl methacrylate or the like having a carbon number of 4 to 18 such as octadecyl octadecyl ester; Aminoalkyl (meth) acrylate succinate such as N-dimethylamine ethyl ester; (meth) acrylate, butyl triglycolate, monomethyl tetraglycol ether (Meth) propylene glycol ether (meth) acrylate or the like alkyl poly-14 - 200909505 alkyl glycol ether (meth) acrylate; phenyl hexaethylene glycol ether (meth) acrylate, etc. (meth) acrylate of aromatic polyalkylene glycol ether; cyclohexyl (meth) acrylate, dicyclopentanyl (meth) acrylate, isodecyl (meth) acrylate, methoxidation of (meth) acrylate a (meth) acrylate having an alicyclic group such as a cyclotrienol ester; a fluorinated alkyl (meth) acrylate such as heptadecyl fluoro(meth)acrylate; (meth)acrylic acid 2 -Hydroxyethyl ester, 3-hydroxypropyl (meth)acrylate, 4-hydroxybutyl (meth)acrylate, (meth)acrylic acid vinegar, tripropylene glycol a (meth) acrylate having a glycidyl group such as (meth) acrylate or (meth)acrylic acid glycerin or the like having a transmissive (meth)acrylic acid vinegar; glycidyl (meth)acrylate; Acid ester; monomethyltetraethylene glycol ether (meth) acrylate, monomethyl hexaethylene dibutyl ether (meth) acrylate, monomethyl octaethylene glycol ether (meth) acrylate vinegar, Monomethylpolyethylene glycol ether (meth) acrylate such as hexamethyl glycol ether (meth) acrylate; monomethyl polypropylene glycol ether such as monomethyl heptapropanediol ether (meth) acrylate ( Methyl) acrylate; ethyl polyglycol ether (meth) acrylate such as ethyl tetraethylene glycol ether (meth) acrylate; tetraethylene glycol (meth) acrylate, hexaethylene glycol (Meth) acrylate, octaethylene glycol (meth) acrylate, and the like. -15- 200909505 The description of "(meth) acrylate" in the present specification means methacrylate and acrylate. For example, the description of "methyl (meth) acrylate" means methyl methacrylate and methyl acrylate. Even in the above-mentioned monomer compound, it is preferable to have a carbon number of 4 to 18 (M) in order to have impact absorption, reduce glass transition temperature, reduce skin irritation, and relatively inexpensive materials. Alkyl acrylate. More preferably, it is used together with a (meth) acrylate having a polar group in the molecule. Although not particularly limited, as one of preferred embodiments of the present invention, for example, 2-ethylhexyl acrylate and 2-hydroxyethyl acrylate are used, and the copolymer is used as a (meth)acrylic acid. The case where the derivative polymer is used. The proportion of the monomer compound having a polar group is not particularly limited, but is preferably from 15 to 30% by weight based on the weight of all the monomer compounds used. If the proportion of the monomer compound having a polar group is too small, there is a tendency for white turbidity during moisture absorption. On the other hand, if the ratio is too large, the dimensional change at the time of moisture absorption is excessively large, and there is a tendency to be exposed from a proper place or a defect such as peeling. When it is used in combination with the above-mentioned monomeric compound having two or more (meth)acrylic acid-polymerized unsaturated bonds in the molecule, as long as it is in the molecule and has a (meth)acrylic acid which is advantageous for the polymerization reaction. When the number of saturated bonding sites is two or more, the compound is not particularly limited. Specific examples of the monomer compound are as follows: 1,4-butanol monoacrylate, hydrazine, 6 hexanediol diacrylate, hydrazine, 9- decyl alcohol monoacrylate, etc. Acid vinegar; w-ethylene glycol monoacrylate, polypropylene glycol diacrylate, etc. Polyene-16- 200909505 Hydrocarbon diol diacrylate; Trimethylolpropane triacrylate, epoxidized trimethylolpropane triacrylate, etc. Triacrylate; epoxidized pentaerythritol tetraacrylate, ditrimethylolpropane tetrapropionate, tetraacrylate such as pentaerythritol tetraacrylate; dipentaerythritol hexaacrylate. When the monomer compound having two or more polymerizable unsaturated bonds in the molecule is excessively used, when the (meth)acrylic derivative polymer is synthesized by polymerization, gelation proceeds. Therefore, when the above monomer compound is used, the ratio is preferably 3% by weight or less based on the total weight of the monomer compound used as a constituent material of the polymer. In the present invention, the other monomer compound which can be used in combination with the above (meth)acrylic monomer compound in the preparation of the polymer of the component (A) is a compound having a polymerizable unsaturated bond in the molecule. Yes, there are no special restrictions. Specific examples thereof include polymerizable compounds such as acrylonitrile (A c r y 1 ο n i t r i 1 e ), styrene, vinyl acetate, ethylene, and propylene. The weight average molecular weight of the (A) (meth)acrylic derivative polymer obtained by polymerization of the above various monomer compounds is more preferably from 150,000 to 400,000, more preferably from 200,000 to 400,000. ~3 5 0,000. If the weight average molecular weight of the polymer component is too small, the resin layer is liable to be cracked or deformed upon impact. On the other hand, if the weight average molecular weight is too large, the viscosity becomes too high, and a large pressure is required to be supplied to the molten resin. Further, since the bubbles are not easily discharged, -17-200909505, there is a tendency that bubbles easily remain in the cured product. The "weight average molecular weight" described in the present specification is obtained by gel permeation chromatography (GPC: Gel Permeation Chromatography) using a calibration curve of standard polystyrene. The blending amount of the (A) (meth)acrylic derivative polymer of the optical resin material of the present invention is 1 以 when the total blending amount of the above components (A), (B) and (C) is 1 Torr, More preferably, it is in the range of 15 to 50 parts by weight, more preferably in the range of 15 to 40 parts by weight. When the amount of the polymer component of the above (A) is too small, there is a problem in mechanical properties, and the impact absorbability of the optical resin material tends to be lowered. Further, the hardening shrinkage becomes large, and the flatness of the film of the produced sheet or film is liable to cause problems. On the other hand, if the amount is too large, the viscosity of the resin composition is too high, and it is difficult to produce a sheet or a film. Component (B): The (B) monofunctional (meth)acrylic derivative monomer used in the present invention is characterized by being a (B 1 ) alkyl chain having a long and less polar acrylate. At least one of (B2) and at least one of acrylate having a high polarity and a repeating number of 4 or more is used as a diluent in the resin composition. Specifically, the monomer of the above (B) is characterized in that: (B 1 ) is at least one of acrylates represented by the following formula (1); and (B2 ) is agglomerated from 4 or more repeating units. At least one selected from the group consisting of an olefin oxyalkyl ether (meth) acrylate and a polyolefin oxy (meth) acrylate having a repeating number of 4 or more. -18- 200909505 The acrylate component of the above (B1), 〇[化2] ΟΗ^ΟΗΟΟωΟ,Η^ΟΟηΗ^ (wherein 1 is an integer of 2 to 4, m :! an integer) The compound of the above (B 1 ) When m = 0, for example, 2-ethylhexyl acrylate, n-butyl (meth)acrylate, benzyl (meth) acrylate such as (meth) octadecylate, etc. Specific examples of the compound of (methyl)propene at m = 1, such as an ester. Although it is not particularly limited, it is preferably a (meth)acrylic acid alkyl ester in terms of cost, and a structure having a good handleability in the case of a (meth)acrylic acid alkyl group. Further, when the amount of C in the above (B 1 ) is small, the skin is highly irritating, and therefore, when the carbon number is too large, the viscosity thereof tends to be high and the handleability tends to be deteriorated. Therefore, the carbon number "η" is preferably 8 to 18 in terms of the above carbon number. Specific examples of the compound include, for example, isopropionate, isodecyl acrylate, 2-ethylhexyl acrylate, and acrylic acid. The so-called repeat unit -19- of the above (Β 2 ) is as follows (1) An example in which (1) specifically 0 or 1 and η is 8 to 18, in the above formula (1), (meth)acrylic acid isodecyl)lauryl acrylate, ()alkyl acrylate; (methene) An aryl aryl ester, etc. In addition, from the viewpoint of ethyl hexyl oxyethyl acrylate and yellowing resistance, the oxime ester has a low viscosity and is considered to have a branched enoate compound in the molecule, when the carbon number It is necessary to pay attention to the treatment. The other side is liable to become a solid, and in the formula (1), the dilute acid 2-ethylhexyl ester of the alkyl chain, the dieniso-octadecyl ester, etc., is preferably an ester. The above-mentioned polyolefin oxygen 200,909,505 alkyl ether (meth) acrylate is a diol moiety having a repeating number of 4 or more such as ethylene glycol or propylene glycol, and has a methyl group or an ethyl group at the end of one side. a compound having an alkyl ether moiety and a (meth) acrylate moiety at the other end Although the above compound having a repeating unit number of less than 4 can be used, it is irritating to the skin and is easily itchy, so it is necessary to pay attention to its disposal. Specific examples of preferred compounds include, for example, monomethyltetraethylene glycol ether. (Meth) acrylate, monomethyl hexaethylene glycol ether (meth) acrylate, monomethyl octaethylene glycol ether (meth) acrylate, monomethyl hexaethylene glycol ether (meth) acrylate Monomethylpolyethylene glycol ether (meth) acrylate such as ester; monomethyl polypropylene glycol ether (meth) acrylate such as monomethyl heptapropanediol ether (meth) acrylate, ethyl tetraethylene Alcohol ether (meth) acrylate, ethyl polyglycol ether (meth) acrylate, etc. On the other hand, the above-mentioned (B2) is a polyolefin oxy group (methyl) having a repeating number of 4 or more. The acrylate is a compound having a diol moiety having a repeating number of 4 or more such as ethylene glycol or propylene glycol, and having a hydroxyl group at one end and a (meth) acrylate moiety at the other end. Use repeat units below 4 Said compound, but it is irritating to the skin and easily itchy, so it is necessary to pay attention to its disposal. Specific examples of preferred compounds, such as tetraethylene glycol (meth) acrylate, hexaethylene glycol (methyl Acrylate, octapropylene glycol (meth) acrylate, etc. As described above, the compound used as (B2) is preferably 4 or more in terms of skin irritation, and is not particularly limited. However, in one embodiment of the present invention, the component (B2) is more suitable for -20-200909505, and the monomethyl group having the repeating unit number of 9 monomethyl nonaethylene glycol ether methacrylate as a main component Polyethylene glycol ether methacrylate. This type of methacrylate is easily obtained by the product name "FA-4 0 0M" manufactured by Hitachi Chemical Co., Ltd. When the number of repeating units is too large, for example, a compound having a repeating unit number of 23 is difficult to use because it is solid at normal temperature. Even if the compound is heated and melted and used, it becomes cloudy when the temperature is lowered, which is less desirable. Therefore, in the present invention, it is preferred to use a compound which is in a liquid state at normal temperature. As described above, in addition to the (meth)acrylic monomer component of (B1), a compound having an alkylene group (B2) having good compatibility with the polymer component of (A) is used as a diluent monomer. Thereby, the adhesion can be easily adjusted without impairing the transparency of the resin composition. Further, since the diluted monomer does not contain a low molecular weight hydroxyl group-containing (meth) acrylate, skin irritation of the resin composition can be suppressed. The blending amount of the component (B) of the optical resin material of the present invention is preferably in the range of 40 to 70 parts by weight, more preferably 40, in the case where the compounding amount of all the components constituting the resin composition is 100. ~60 parts by weight range. When the amount of the component (B) is too small, the viscosity of the resin composition becomes too high, and it tends to be difficult to produce a sheet or a film. Further, if the amount is too large, the mechanical properties of the produced sheet or film may cause problems. Further, it is preferable to appropriately adjust the component (B) (B 1 ) in a range of 90:1 0 to 60:40 in such a manner that the composition at the time of moisture absorption and the cured product thereof do not cause white turbidity. · The proportion of (B2). The (C)2-functional or higher (methyl-21 - 200909505) acrylic derivative' used in the present invention means a compound which can be a bridging agent. Specifically, it is a compound having two or more reactive unsaturated bonds in the molecule, and at least one of these reactive unsaturated bonds is a (meth)acryloyl group ((Meth) acryloyl). That is, the compound 'used as the component (c) in the present invention may be other free radicals including an ethyl group, a styryl group, an aromatic group, and the like in addition to the (meth) acrylonitrile group. Sexual base. Further, the above compound may contain a functional group such as a hydroxyl group in the molecule. The compound which can be used as the above component (C) in the present invention is, for example, a (C 1 ) low molecular weight (meth)acrylic derivative monomer; (C2 ) a molecular weight (methyl) An acrylic derivative; or (C3) a (meth)acrylic derivative having a relatively high molecular weight. These compounds are described below. Specific examples of the (C 1 ) low molecular weight bifunctional or higher (meth)acrylic derivative monomer used in the present invention include, for example, 4-butanediol diacrylate and 1,6-hexanediol. Olefin diol diacrylate such as diacrylate or 1,9-nonanediol diacrylate; polyolefin diol diacrylate such as polyethylene glycol diacrylate or polypropylene glycol diacrylate; trimethylol a triacrylate such as propane triacrylate or epoxidized trimethylolpropane triacrylate; tetraacrylate such as epoxidized pentaerythritol tetraacrylate, ditrimethylolpropane tetraacrylate or pentaerythritol tetraacrylate; dipentaerythritol Hexaacrylate and the like. From the viewpoint of low irritation to the skin and easy adjustment of the degree of bridging, it is more preferred to be a polyolefin diol diacrylate, more preferably a polypropylene glycol diacrylate. -22- 200909505 (C2) A molecular weight (meth)acrylic acid derivative (C2) which can be used in the present invention has a molecular weight of 1,000 or more and less than 4,000. Specifically, for example, there are compounds represented by the general formulas (a) to (g) represented by the following. These compounds may be used singly or in combination of two or more kinds of the following general formula (a) (in the formula (a), R is an ethyl group or a propyl group, and η is an integer of from 1 to 20, respectively). A diacrylate compound of an olefin oxide additive of bisphenol A, and a compound obtained by substituting an acryloyl group of these compounds with a methacrylonitrile group. [Chemical 3]

The following general formula (b) (in the formula (b), m and η are independent integers of 1 to 1 分别, respectively) of bisphenol oxime epichlorohydrin (

Epichlorohydrin) an esterified product of an upgraded product with acrylic acid, and a compound in which an acryloyl group of these compounds is substituted with a methacrylinyl group. [化4] ίΤΗι ϊΗι

CH OH /-, CH, /-y 〇H CH ^ΟΟΗ,ΑΗΟΗ^ΟΗ^Ο^ΑΗ^Ο^Ο^Η,όΗαΗ,Ο^Α (b) The following general formula (C) (in formula (C) a diacrylate compound in which R is an ethylenic oxide additive of a phosphoric acid represented by an ethyl group or a propyl group, and m and η are each an integer of from 1 to 20, respectively, and an acrylonitrile group of these compounds. A compound substituted with a methacryl oxime group. -23- 200909505 化II CHa=CH—C—(〇—Rj^O—P —0—(R—O^-C—CH=CH, 〇OH 〇(c) The following general formula (d (In the formula (d), m and n are each an integer of 1 to an integer), the chlorophthalic acid modified product of Phthalic Acid and the added esterified product of acrylic acid, and the acrylonitrile of these compounds A compound substituted with a methacryl oxime group.

O OH Ο C—0-(CHa—CH—CHZ—O^C—CH=CH2 C—0—(CHa—CH—CHa—Ojh-C—CH=CHb O OH O (d) The following general formula (e (in the formula (e), m and n are independent integers of 1 to 20, respectively) of the 1,6-hexanediol epichlorohydrin modified product and acrylic acid esterified ester (having 2 in one molecule) a propylene group), and a compound in which the propylene sulfhydryl group of these compounds is substituted with a methacryl oxime group. [Chem. 7] CH, OH ΟΗ C Η- C-(〇C H2C HC Η, ^Ο -(CH«) g Ο -{C HaC HCH,〇)^- 0 CH, C—CH (e) II o The following general formula (f) (in formula (f), R is ethyl or propyl, 3 m A triacrylate compound of an olefin oxide additive of phosphoric acid represented by an integer of 1 to 20, respectively, and a compound in which an acryloyl group of these compounds is substituted with a methacrylinyl group. [Chemical 8] 〇= P^-〇-(R~.〇^-C —ch=ch2 (f) -24- 200909505 The following general formula (g) (in the formula (g), 'R is an exoethyl or a propyl group, m, a triacrylate compound of an olefin oxide additive of trimethylolpropane represented by m, and m, 'is an integer of 1 to 2 independently" And a compound in which an acryloyl group of these compounds is substituted with a methacrylinyl group. [Chem. 9] CH2-〇-4R-〇-^C (=0) -ch=ch2 CH3CH2C-CH2-〇-^R-〇 ->-/C (=〇) -ch=ch2 (g) I m ch2-o-(*ro·)—, c (=〇) -ch=ch2 (C3) molecular weight usable in the present invention The relatively high bifunctional or higher (meth)acrylic derivative preferably has a weight average molecular weight of 4,000 to 20,000, more preferably 8,000 to 16,000 by weight average molecular weight. If the molecular weight of the derivative is too small, On the other hand, if the molecular weight is too large, the viscosity of the resin composition becomes too high, and it tends to be difficult to form a sheet. From the viewpoint of compatibility, it is preferred to use an olefin. The diol is a compound derived from a raw material. Specific examples of the component (C3) are as follows: (1) Di(meth) acrylate of a diol compound: for example, polyethylene glycol, polypropylene glycol, polybutylene Polyolefin diol such as alcohol, and acrylic acid or methacrylic acid, 2-(meth)acryloxyethyl succinate vinegar, 2-(methyl) propyl Reaction between a (meth) acrylate having a mercapto group such as ethenyloxyethyl hexahydrophthalate; the above diol and 2-isocyanoethyl methacrylate (trade name "Karenz MOI" , Showa Electric S〇 or 2_Isocyanomethylpropanoic acid ester (trade name "Karenz AOI" 'Showa Electric Co., Ltd.), etc. between the (meth) acrylates having an isocyano group -25 - 200909505 The reaction; or the reaction between the above diol and (meth)acrylic acid vinegar having a glycidyl group such as glycidyl (meth)acrylate. (2) Di(meth) acrylate of an epoxy resin: for example, a diglycidyl ether having a polyolefin diol moiety such as polyethylene glycol, polypropylene glycol or polytetramethylene glycol may be used in the molecule. An epoxy resin having two epoxy groups is obtained by a reaction with acrylic acid or methacrylic acid, a (meth) acrylate having a carboxyl group or a (meth) acrylate having a hydroxyl group. Specific examples of the (meth) acrylate having a hydroxyl group are as follows: 2-hydroxyethyl acrylate, 2-hydroxypropyl acrylate, 3-hydroxypropyl acrylate, 4-hydroxybutyl acrylate, polyethylene glycol acrylate , polypropylene glycol acrylate, ethylene glycol-propylene glycol, block copolymer acrylate, ethylene glycol monobutylene glycol, block copolymer acrylate, caprolactone modified acrylate (trade name "PGCCEL FA" system 歹(J, Daicel Chemical Industries Co., Ltd.), (meth)acrylic acid derivatives such as pentaerythritol triacrylate; and 2-hydroxyethyl methacrylate, 2-hydroxypropyl methacrylate, 3-hydroxy methacrylate Propyl ester, 4-hydroxybutyl methacrylate, polyethylene glycol methacrylate, polypropylene glycol methacrylate, ethylene glycol monopropylene glycol, block copolymer methacrylate, ethylene glycol-strand Alcohol, bulk copolymer methacrylate, caprolactone modified methacrylate, (trade name "PLCCEC FM" series, manufactured by Daicel Chemical Co., Ltd.), pentaerythritol trimethacrylate, etc. (methyl) Methacrylic acid And the like. Other methods 'for example, acrylic acid or methacrylic acid, a (meth) acrylate having a carboxyl group or a (meth) acrylate having a hydroxyl group, and the above-mentioned polyolefin diol and an excess epoxy resin (having intramolecular The reaction between two -26-200909505 epoxy groups) is carried out by reacting a compound having an epoxy group at the terminal to obtain a (meth) acrylate of an epoxy resin. (3) Di(meth) acrylate of a polyester having a hydroxyl group at both ends: It can be obtained, for example, by a reaction between a polyester polyol and a saturated acid and a polyhydric alcohol. Specific examples of the saturated acid include aliphatic dicarboxylic acids such as Azelaic Acid, Adipic Acid, and Sebacic Acid. Specific examples of the polyhydric alcohol include ethylene glycol, propylene glycol, diethylene glycol, dipropylene glycol, butylene glycol, polyethylene glycol, and polypropylene glycol. By polyester polyol, with acrylic acid or methacrylic acid, (meth) acrylate having carboxyl group or (meth) acrylate having glycidyl group, or (meth) acrylate having isocyano group The reaction produces a di(meth)acrylate of the polyester. In other methods, for example, a saturated acid and a polyol may be reacted to prepare a polyester polycarboxylic acid, and these polycarboxylic acids may be mixed with a (meth) acrylate having a carboxyl group or a (meth) acrylate having an isocyano group. The ester or the (meth) acrylate having a glycidyl group is reacted to obtain a di(meth) acrylate of the polyester. (4) Poly(meth)acrylate of polyurethane: Polyurethane can be obtained, for example, by a reaction between a polyol compound and a polyvalent isocyanate compound. Specific examples of the polyhydric alcohol include, for example, propylene glycol, butylene glycol, 1,4-butanediol, 1,5-butanediol, 1,6-hexanediol, neopentyl glycol, and 1,4-cyclohexane. Dimethanol, 2-methyl-1,8-octanediol, 1,9-nonanediol, 3-methyl-1,5-pentanediol, poly 1,2-butanediol, polypropylene glycol, poly Butanediol, ethylene glycol-propylene glycol. Block copolymer, ethylene glycol monobutylene glycol copolymer -27- 200909505, methyl pentanediol modified polybutane diol, propylene glycol modified polycondensate An alcohol, an oxidized propyl addition of bisphenol A, an oxidized propyl addition of hydrogenated bisphenol A, an oxidized propyl addition of bisphenol F, an oxidized propyl addition of hydrogenated bisphenol F, and the like. Specific examples of the polyvalent isocyanate compound include, for example, toluene diisocyanate, xylene diisocyanate, diphenylmethane diisocyanate, hexamethylene diisocyanate, diisocyanate, trimethylhexamethylene diisocyanate, tetramethyl xylene Diisocyanate, Isophorone Diisocyanate, toluene diisocyanate with hydrogen added, xylene diisocyanate with hydrogen added, diphenylmethane diisocyanate with hydrogen added, Norbornene Diisocyanate, etc. Diisocyanate, and polymers of these diisocyanates, or urea modified bodies of diisocyanates, titrated modified bodies, and the like. The polyurethane having the above composition is treated with an excess of a polyol to obtain a compound having a hydroxyl group at the terminal, and acrylic acid or methacrylic acid, a (meth) acrylate having a carboxyl group, or a glycidyl acrylate. A (meth) acrylate having a glycidyl group or a (meth) acrylate having an isocyano group is reacted to obtain a di(meth) acrylate of a polyurethane. (5) A compound obtained by reacting a polyurethane with a compound having a carboxyl group and a reactive unsaturated bond: a polyol which is a raw material of a polyurethane and a polyvalent isocyanate compound, as described above, These polyols and polyvalent isocyanates may be used singly or in combination of two or more. The polyurethane having the above-mentioned composition is treated with an excess of a polyisocyanate to obtain a compound having an isocyano group at the terminal, and a compound having a carboxyl group of 28-28200905 and a reactive unsaturated bond or having a carboxyl group. The (meth) acrylate is reacted to obtain a polyurethane having a reactive unsaturated bond at its terminal. Specific examples of the compound having a carboxyl group and a reactive unsaturated bond are, for example, 2-hydroxyethyl acrylate, 2-hydroxypropyl acrylate, 3-hydroxypropyl acrylate, 4-hydroxybutyl acrylate, polyethylene glycol acrylate. Ester, polypropylene glycol acrylate, ethylene glycol monopropylene glycol, block copolymer acrylate, ethylene glycol monobutylene glycol block copolymer acrylate, caprolactone modified acrylate (trade name "PLACCEL FA" series, a (meth)acrylic acid derivative such as pentaerythritol triacrylate, manufactured by Daicel Chemical Co., Ltd.; and 2-hydroxyethyl methacrylate, 2-hydroxypropyl methacrylate, 3-hydroxypropyl methacrylate, methyl 4-hydroxybutyl acrylate, polyethylene glycol methacrylate, polypropylene glycol methacrylate, ethylene glycol monopropylene glycol, block copolymer methacrylate, ethylene glycol-butane diol, block copolymerization Methyl methacrylate, caprolactone modified methacrylate, (trade name "PLACCEL FM" series, manufactured by Daicel Chemical Industries Co., Ltd.), (meth)methyl group such as pentaerythritol trimethacrylate C Alkene derivatives and the like. These compounds may be used alone or in combination of two or more. The above (C3) synthesis of a bifunctional or higher (meth)acrylic derivative having a relatively high molecular weight can be carried out by a known polymerization method such as bulk polymerization, solution polymerization, suspension polymerization or emulsion polymerization. In view of the strong toughness of the cured product of the resin composition, the component (C) is preferably at least the (meth)acrylic derivative of the above (c 3 ). The (meth)acrylic derivative corresponding to (C 3 ) may be used singly or in combination of two or more kinds in -29 to 200909505. Although not particularly limited, among the compounds (1) to (5) described above as the component (C3), it is preferable that the polyurethane of the (5) and (5) is described. A acrylate, and a polyurethane having a reactive unsaturated bond at the end. Among them, a reactive unsaturated bond is preferably a (meth)acryloyloxy group-based polyurethane. Specifically, it is preferred that the diol component of the polyurethane be a compound composed of polypropylene glycol or polybutanediol. More preferably, the diol component of the polyurethane is polypropylene glycol, and the diisocyanate component is a polyurethane of isophorone diisocyanate. In the optical resin composition of the present invention, when the (A) (meth)acrylic derivative polymer and the (C 3 ) molecular weight are relatively high, a bifunctional or higher (meth)acrylic derivative is used. When the compatibility is low, if the amount of the component (C 3 ) is large, the cured product may be cloudy. However, in the present invention, the compatibility with the polymer can be improved by using the component (C3) which is based on the olefin diol, and the resin composition is maintained without depending on the amount of the component (C3). The transparency of the cured product. Further, by using at least (C3) a (meth)acrylic derivative as the component (C), even if it is blended in a large amount, the brittleness of the cured product and the remarkably lowering of the adhesive strength can be prevented. Since the amount of the (C 3 ) compounding amount of the resin composition can be increased, it is possible to suppress the change in the properties of the cured product due to the error in the formulation. The amount of the (C) (meth)acrylic derivative of the optical resin material of the present invention is preferably from 1 to 40 by weight when the amount of the composition of the resin composition is from -30 to 200909505. Share. When the amount of (C3) blended in the resin composition is too small, the cured product tends to be difficult to store the shape. On the other hand, if the amount is too large, the viscosity of the resin composition becomes too high, and it is difficult to form a sheet, and the adhesive strength tends to be lowered. Further, the hardness of the resin composition is brittle, and the mechanical properties tend to cause problems. In addition to the above components (A)' (B) and (C), the optical resin composition of the present invention preferably contains (D) a polymerization initiator. However, in the present invention, the polymerization initiator of the component (D) is not essential. In the optical resin composition of the present invention, for example, when the polymerization reaction is carried out by irradiation with an electron beam, the polymerization reaction can be carried out without using a polymerization initiator. Therefore, in the present invention, the polymerization initiator can be suitably used without carrying out the polymerization without using it. The polymerization initiator which can be used in the present invention may be either a photopolymerization initiator or a thermal polymerization initiator, or both may be used. As described above, when an electron beam is applied to the resin composition of the present invention, for example, a polymerization reaction can be carried out without using a polymerization initiator. Namely, the polymerization reaction for hardening the resin composition of the present invention can be carried out by irradiation of an active energy ray, heat energy, or a hardening method using both. The "active energy line" refers to ultraviolet rays, electron lines, a-line, β-line, γ-ray, and the like. The above hardening method can also be used for the synthesis of a component (A) (meth)acrylic derivative polymer of a resin composition. However, it is difficult to heat the resin composition for the reason that the high temperature resistance of the polarizing plate used for the liquid crystal panel is low. In this case, since the optical resin composition of the present invention cannot be directly applied or injection-molded in this state -31 - 200909505, it is preferred to use a photopolymerization initiator which is polymerized by light. When the amount of the polymerization initiator is too small, the polymerization reaction does not proceed satisfactorily, and the curing of the resin composition is insufficient. On the contrary, if too large, a large amount of polymerization initiator remains, and optical properties or mechanical properties may cause problems. Doubt. Therefore, the blending amount of the polymerization initiator is preferably in the range of 0.01 to 5 parts by weight, based on the total amount of the components (A), (B), (C), and (D) being 1 Torr. More preferably, it is in the range of 0. 01 to 3 parts by weight, and particularly preferably in the range of 3 to 2 parts by weight of 〇.〇. In particular, when a photopolymerization initiator is used, it is preferably in the range of 〇·1 to 5 parts by weight, more preferably in the range of 0·3 to 3 parts by weight, particularly preferably 1 〇〇. It is desirably in the range of 0.5 to 2 parts by weight. When the thermal polymerization initiator is used, it is preferably in the range of 1 to 1 part by weight, more preferably 0.01 to 0.5 part by weight, based on the total amount of 1 〇 0. Further, in the case of using a photopolymerization initiator and a thermal polymerization initiator, it is preferable to appropriately adjust them within the above range. It is more desirable to adjust the usage amount separately in response to the hardening process. For example, when it is temporarily fixed by photopolymerization and then mainly hardened by thermal polymerization, it is preferred to use a relatively small amount of a photopolymerization initiator and a thermal polymerization initiator. Specifically, when the total amount of the components (A), (B), (C), and (D) is 100, it is preferred to use 0.1 to 0.5 part by weight of the photopolymerization initiator and 0.1 to 1.0 by weight. A portion of a thermal polymerization initiator. In other cases, when almost all of the hardening by photopolymerization is carried out, and a part of the hard-to-photohardenable portion is thermally cured by thermal polymerization, it is preferable to use a smaller amount from the viewpoint of preserving stability. Thermal polymerization initiator. Specifically, when all the above-mentioned blending amounts are 100, it is preferred to use 5 to 5 parts by weight of a photopolymerization initiator and 0.01 to 0.2 part by weight of a thermal polymerization initiator. The photopolymerization initiator used in the present invention can be obtained from benzophenone (

Benzophenone), Anthraquinone, and feminine

Benzoin) is selected from generally known compounds such as Sulfonium Salt, Diazonium Salt, and Onium Salt. These photopolymerization initiators have a high sensitivity to light rays, especially to ultraviolet rays. Specific examples of the compound which can be used as a photopolymerization initiator are shown in the following columns. Benzophenone, anthracene, oxime, -tetramethyl-4,4,-diaminobenzophenone (michlerone), hydrazine, hydrazine-tetramethyl-4,4,-diaminodi Benzophenone, 4-methoxy-4,-dimethylaminobenzophenone, α-hydroxyisobutylbenzophenone, 2-ethyl onion, tertiary butyl hydrazine, 1,4- Dimethyl hydrazine, chloropurine, 2,3-dichloropurine, 3-chloro-2-methylindole, 1,2-benzopyrene, 2-phenylindole, 1,4 -Naphthoquinone (1,4- Naphthoquinone) '9,1〇-菲醌 (9,1〇_

Phenanthraquinone), Thioxanthone, 2-oxothione, 1-hydroxycyclohexyl ketone, 2,2-dimethoxy-1,2-diphenylethane-1-one, 2- Aromatic ketone compounds such as hydroxy-2-methyl-1-phenylpropan-1-one • « tbenzoin, methyl benzoin, ethyl benzoin and other benzoin compounds » Benzoin methyl ether, benzoin ethyl ether, benzoin Isobutyl ether, An-33- 200909505 benzoin ether compound such as benzoic acid ether; benzyl, 2,2-diethoxyacetophenone, benzyldimethylketal, propionic acid β-( a diester compound such as acridine-9-yl) ester; an acridine compound such as 9-phenyl acridine, 9-pyridyl acridine or 1,7-diacridine heptane; 2-(o-chlorobenzene) -4,5-diphenylimidazole dimer, 2-(o-chlorophenyl)-4,5-di(m-methoxyphenyl)imidazole dimer, 2-(o-fluorophenyl)- 4,5-diphenylimidazole dimer, 2-(o-methoxyphenyl)-4,5.diphenylimidazole dimer, 2-(p-methoxyphenyl)-4,5- Diphenylimidazole dimer, 2,4-di(p-methoxyphenyl) 5-phenylimidazole dimer, 2·(2,4-methoxyphenyl)-4, 2,4,5-triaryl imidazole dimer such as 5-diphenylimidazole dimer, 2-(p-thiophenyl)-4,5-diphenylimidazole dimer, 2 - Benzyl-2-dimethylamino-1-(4-morpholinylphenyl)-1·butanone, 2-methyl-1-[4-(methylthio)phenyl]-2 - Polinyl-propane, bis(2,4,6-trimethylbenzhydrazide)-phenylphosphine oxide, low (2-hydroxy-2-methyl-1 (4-(1-methylvinyl) ) phenyl)acetone). In the present invention, as the photopolymerization initiator, two or more of the compounds shown above may be used alone or in combination, and an appropriate compound may be selected depending on the purpose. For example, in order to prevent coloring of the resin composition, it is preferred to use two or more of the compounds shown below or in combination. 1-hydroxycyclohexyl benzophenone, 2-hydroxy-2-methyl-1-phenyl-propan-1-one, 1-[4-(2-hydroxyethoxy)phenyl]-2-hydroxy- Alpha-hydroxyalkylphenone compound such as 2-methyl-propane-bupropion; -34- 200909505 Bis(2,4,6-trimethylbenzhydrazide)-phenylphosphine oxide, double ( 2,6-dimethoxybenzhydrazide)-2,4,4-trimethyl-pentylphosphine oxide, 2,4,6-trimethylbenzhydrazide-diphenylphosphine oxide, etc. Mercaptophosphine oxide compound 1 low (2-hydroxy-2-methyl-1(4-(1-methylvinyl)phenyl)acetone); oxy-phenyl-acetic acid 2-[2-oxygen a mixture of 2-(2-phenyl-ethyloxy)ethoxy]-ethyl ester and oxy-phenyl-acetic acid 2-[2-hydroxy-ethoxy]-ethyl ester 〇 in order to make a thicker sheet Preferably, the photopolymerization initiator is at least used, bis(2,4,6-trimethylbenzhydrazide)-phenylphosphine oxide, bis(2,6-dimethoxybenzamide)-2 , a sulfhydryl o-oxide compound such as 4,4-trimethyl-pentylphosphine oxide or 2,4,6-trimethylbenzhydrazide-diphenylphosphine oxide, in order to reduce the odor of the flakes It is desirable to use low (2-hydroxy-2-methyl (4-(1-A) Vinyl)phenyl)acetone), and oxy-phenyl-acetic acid 2-[2-oxo-2-phenyl-ethyloxy-ethoxyethyl ester and oxy-phenyl-acetic acid 2 At least one of a mixture of [2-hydroxy-ethoxy]-ethyl ester. In order to reduce the polymerization inhibition caused by oxygen, it is preferred to use oxy-phenyl-acetic acid 2_[2-oxophenylethyloxy-ethoxy]-acetic acid and oxy-phenyl-acetic acid. A mixture of 2-[2-hydroxy-ethoxy]-ethyl ester. The aforementioned thermal polymerization initiator refers to an initiator which generates a radical by heat, and specifically, for example, Benzoyl Peroxide, butyl perbenzoate, cumene Hydrogen peroxide, over-35- 200909505 diisopropyl dicarbonate, di-n-propyl dicarbonate, bis(2-ethoxyethyl)dicarbonate, peroxy neodecanoate Butyl butyl ester, tertiary butyl peroxybutyrate, peroxidized (3,5,5-trimethylhexyl), dipropene peroxide, diethyl ruthenium peroxide, dodecyl peroxide, etc. Organic peroxides. Further, for example, there are 2,2 '-azobisisobutyronitrile (2,2 '-Bisisobutyronitrile), 2,2'-azobis(2-methylbutyronitrile), 1,1'-azobis ( Cyclohexane-1-carbonyl), 2,2'-azobis(2,4-dimethylvaleronitrile), 2,2'-azobis(2,4-dimethyl-4-methoxy) Valeronitrile), dimethyl-2,2'-azobis(2-propionic acid methyl ester), 4,4'-azobis(4-cyanovaleric acid), 2,2'-azo double An azo compound such as (2-hydroxymethylpropionitrile) or 2,2'-azobis[2-(2-imidazolin-2-yl)propane. When a thermal polymerization initiator is used in the optical resin composition of the present invention, these thermal polymerization initiators preferably have a temperature of 40 to 80 ° C, more preferably 4 to 65 ° C, and particularly preferably 50. A 10-hour half-life temperature of ~65 °C. The "1 〇 hour half-life temperature" refers to the temperature at which half of the thermal polymerization initiator is decomposed in 1 hour. If the half-life temperature at 10 hours is too low, the storage stability of the resin composition tends to decrease. On the other hand, if the 10-hour half-life temperature is too high, high-temperature heating is required during the hardening reaction, which may cause deterioration of characteristics of the liquid crystal or the polarizing plate, and cause deterioration in display characteristics of the liquid crystal display. When a thermal polymerization initiator having a relatively high half-life temperature of 10 hours is used, although it is easy to ensure the preservation stability of the resin composition, the reactivity is low, and a relatively large amount of a thermal polymerization initiator must be added. On the other hand, when a thermal polymerization initiator having a relatively low 10-hour half-life temperature is used, it is preferable to set a relatively small amount of addition in order to suppress the polymerization of the resin composition at the time of the -36-200909505. In the optical resin composition of the present invention, other polymerizable compounds which are different from the above components (A), (B), (C) and (D) may be used as necessary. The shape retention of the optical resin composition can be improved by using a suitable polymerizable compound. For example, a polymerizable compound having one unsaturated bond in the molecule, such as acrylonitrile, styrene, ethyl acetate, acetaminophen, or propylene, may be used. In this case, in order to obtain the desired effect of the present invention, the amount of the polymerizable compound to be used is preferably 90% by weight or less, more preferably 50% by weight or less, and particularly preferably 20% by weight or less based on the entire composition. the following. Further, although it is also possible to use a polyunsaturated compound having two or more unsaturated bonds in the molecule, if the compounding amount of the compound is too large, the adhesiveness and impact resistance of the resin composition tend to be lowered. Therefore, in the present invention, when a polyunsaturated compound is used, the compounding amount is preferably 20% by weight or less based on the entire composition. Further, the optical resin composition of the present invention may contain various stabilizers as necessary. The stabilizer which can be used in the present invention is, for example, a polymerization inhibiting agent such as p-methoxyphenol used for the purpose of improving the storage stability of the resin composition, and is used to enhance the resin composition. An antioxidant such as triphenylphosphine used for heat resistance of the cured product, HAL S or the like used for improving weather resistance. These complex stabilizers can also be used in combination. Others, as long as the effects of the present invention are obtained, generally known additives can be used. -37-200909505 The second aspect of the present invention relates to an optical resin material comprising a hard material composed of an optical resin composition. In the optical resin material of the present invention, the optical resin composition in this state can be directly applied to a specific thickness using a coater, or can be injection molded, and then cured to form a cured product. obtain. The hardening reaction can be carried out by a polymerization method according to heat. Further, light energy such as UV or EB may be applied to perform the hardening reaction. These hardening methods can also be applied. The optical resin material of the present invention is not particularly limited, but is preferably formed into a sheet shape or a film shape. The sheet or film produced by hardening the resin composition has adhesiveness. Therefore, it is possible to directly bond the optical resin materials of these sheets or films to glass or other substrates without using an adhesive or an adhesive. The resin composition for optical use of the present invention is suitable for use as a material used in an image display device such as a liquid crystal display device or a PDP (plasma display panel) and exhibits good transparency. Optical resin materials for various display devices. Further, since the cured product obtained from the optical resin composition of the present invention contains a polymer having a high molecular weight, it has an appropriate hardness and is less likely to be plastically deformed by impact. Therefore, the impact absorption can be improved by increasing the film thickness of the optical resin material. Therefore, in an embodiment of the preferred embodiment of the present invention, the optical resin material can be applied to an impact absorbing layer of an optical filter for an image display device and an image display device. When the optical resin material is formed into the impact π and the layer of the image display device, the glass transition temperature (T g ) of the cured product of the resin composition is considered to be 〇 ° C or less in comparison with -38 to 200909505. Once the glass transition temperature of the cured product exceeds 〇 t, the impact absorbing layer becomes hard and cracks easily occur when subjected to impact. T g is more desirable to be -2 ° ° C to -6 0 ° c. Further, when the optical resin material is applied to an image display device, the visible light transmittance is preferably 80% or more. When the impact absorbing layer is formed by using the optical resin composition of the present invention, the resin composition can be applied to the surface of the image display panel or the image display device, or the substrate of the optical filter, and the like. Further, the coated surface is irradiated with a radiation such as ultraviolet rays or a radiation such as an electron beam to be hardened. In addition, when the optical filter is produced, for example, the optical resin composition of the present invention can be applied to a functional layer such as a substrate of an optical filter or an antireflection layer and formed into a film, and then laminated. After the substrate, functional layer or protective layer of the light sheet is irradiated with radiation, it is hardened. When the resin composition is applied to the surface of the image display panel or the image display device to form a resin material layer, it is preferable to form the film so that the film thickness becomes 0·1 mm to 3 mm. In view of impact absorption, the resin material layer is more preferably a film thickness of not less than 2 mm. In particular, when the impact absorption property is to be enhanced, the film thickness of the resin material layer is more preferably 1.3 mm or more. Although not particularly limited', in order to form a desired film thickness, it is preferred to carry out the coating using a general-purpose coater. Further, a separate sheet or film can be prepared in advance by a curing reaction of the optical resin composition, and this is used as the optical resin material of the present invention. In the production of the optical resin material, a method such as injection molding can be used. Further, the curing reaction of the resin composition can be carried out by heating or by irradiating a radiation such as ultraviolet rays or an electron beam. When the optical tree material of the invention of the present invention is molded into a separate sheet or film, the thickness of the moon is preferably 〇1 m m to 3 m m. When the optical resin material is applied to an image display device as an impact absorbing layer, it is preferable to form the film so as to have a film thickness of 0.2 mm or more. In particular, when it is desired to enhance the impact absorbability, it is preferable to form a film thickness of 1·3 ηηηι or more. On the other hand, in the case of using a transparent protective substrate, it is preferable to form a film thickness of not more than 5 mm, and more preferably to form a film thickness of not more than 2 min. The optical resin material formed into a sheet or a film can be laminated directly on the surface of the image display panel or the image display device, or an optical filter or the like, or an interlayer adhesive or an adhesive. When the curing reaction of the optical resin composition of the present invention is carried out by irradiation with light such as ultraviolet rays, if oxygen is present, the progress of polymerization may be inhibited. At this time, it is preferable to cover the surface of the hardened resin layer with a transparent film or a transparent glass for blocking oxygen. In addition, oxygen can also be blocked by polymerization in an inert environment. When it is not easy to block oxygen by this method, the influence of oxygen can be lowered by increasing the amount of the polymerization initiator added. The polymerization initiator used at this time is preferably oxy-phenyl-acetic acid 2-[2-oxo-2-phenyl-ethyloxy-ethoxy]-ethyl ester and oxy-benzene. A mixture of 2-[2-hydroxy-ethoxy]-ethyl acetate. The ultraviolet irradiation device is not particularly limited, and a generally known ultraviolet irradiation device such as a blade type or a conveyor belt type can be used. Further, the light source for ultraviolet irradiation may be a low pressure mercury lamp, a medium pressure mercury lamp, a high pressure mercury lamp, a metal halide lamp, an LED lamp or the like, and a high pressure mercury lamp or a metal halide lamp is preferably used. Examples of the image display device to which the optical resin composition or the optical resin 40-200909505 of the present invention can be applied, for example, a plasma display device (LCD: Liquid Crystal Display) (CRT: Cathode Ray) Tube, field emission display device, organic motor light-emitting display device paper, etc. When the optical resin material of the present invention is applied to image display, it is necessary to provide an anti-reflection layer, an anti-fouling layer, and a pigment layer. The functional layer of the layer or the like is provided in combination. For example, the multilayer structure can be applied to an image display device which is formed on a base film such as a polyethylene polyester film to form an antireflection layer, an antifouling layer, and a hard layer. The functional layer such as a film layer may be laminated. Here, as the antireflection layer displayed as the functional layer, a known reflection preventing method can be used as long as the reflectance of the visible light is 5 % or less. A layer made of a transparent base such as a transparent plastic film. The antifouling layer is used to prevent dirt from adhering to the surface, and can be used as known materials. The composition is not particularly limited, but is preferably a fluorine-based resin or an fluorenone-based resin for reducing the force. The pigment layer is used to reduce unnecessary light and improve color purity when it is used from a liquid crystal display panel. When the luminosity emitted by the image display panel is low, it is effective. The pigment which can absorb unnecessary light can be dissolved in the resin, and the film is formed or laminated on the polyethylene film and the polyester film. The substrate film is formed by mixing the above pigments or the like. The hard coat layer is used to increase the surface strength. The hard coat layer, PDP), the image FED: the electronic device and the hard film combination and the film The pigment layer has a pair, and the material can be made into a general surface. The use of a pure color band of the olefinic film adhesive can be formed or laminated on a polyethylene film by using an acrylic resin such as urethane acrylate or epoxy acrylate or an epoxy resin by -41 - 200909505. Formed on the substrate film. Similarly, in order to increase the surface strength, a glass plate, an acrylic plate, a polycarbonate plate or the like may be used, or a hard coat layer may be formed into a film or laminated on these sheets. The optical resin composition or the optical resin material of the present invention is not limited to the functional layer such as the antireflection layer, and may be used in combination with a layer having an appropriate desired functionality. The functional layer may be laminated on the side of one of the transparent substrates or laminated on both sides. Further, a layer having a different function may be laminated on both sides of the transparent substrate, or a layer having the same function on both sides may be laminated. The order of lamination of the functional layers is not particularly limited, and can be appropriately changed. When the optical resin composition or the optical resin material of the present invention is combined with a functional layer to form a multilayer structure, it is preferable that these compositions or materials are laminated close to the surface of the image display panel or the image display device. . The optical resin composition of the present invention or the optical resin material described above may be used in combination with a polarizing plate. In this case, the optical resin composition or the optical resin material of the present invention may be laminated on the visible surface side of the polarizing plate or laminated on the opposite side. When this layer is laminated on the visible surface side of the polarizing plate, the functional layer of the antireflection layer, the antifouling layer, and the hard coat layer may be laminated on the visible surface side. Further, when these resin compositions or resin materials are used between the polarizing plate and the liquid crystal cell, various functional layers can be laminated on the visible surface side of the polarizing plate. This layering can be carried out by providing an adhesive layer between the layers as required, and using a roll press or a blade laminator. The multilayer structure obtained by laminating the optical resin composition or resin material of the present invention in various functional layers of -42-200909505 can be easily attached to image display using a roll press or a blade bonding machine. The front panel of the panel or image display device is either a front panel or a transparent protective substrate for the image display device. In this case, the multilayer structure is preferably disposed at an appropriate position in front of the image display panel closer to the visible surface. The multilayer structure is particularly preferably disposed between the front panel or the transparent protective substrate for the image display device. Next, the case where the image display device is a liquid crystal display device will be described as an example of the application of the optical resin material of the present invention to an image display device.

The liquid crystal display unit incorporated in the liquid crystal display device is not particularly limited, and can be constituted by a liquid crystal material known in the art. Further, it is classified into TN, STN, VA, IPS, etc. by the control method of the liquid crystal material. However, in the present invention, a liquid crystal display unit using any of the control methods may be used. Fig. 1 and Fig. 2 are schematic cross-sectional views showing an example of a structure of a conventional liquid crystal display device. The liquid crystal display device shown in Fig. 1 is provided by a liquid crystal display unit 10; a polarizing plate 2 〇 and 2 2 attached to the both surfaces; and a dielectric spacer 3 is disposed on the visible side of the display device. The upper transparent protective substrate 40 of the upper surface of the plate 2 and the backlight system 50 of the lower surface of the polarizing plate 2 2 are formed. The liquid crystal display unit 1 is a structure in which a liquid crystal material is sealed between two sheets of glass (not shown), and polarizing plates 20 and 22 are bonded to the respective glass surfaces. The backlight system 50 is typically constituted by a reflection means such as a reflector or an illumination means such as a lamp. In addition, the liquid crystal display device shown in Fig. 2 is different from the liquid crystal display device shown in Fig. 1 except that the transparent protective substrate is not provided on the upper surface (front surface) of the polarizing plate 20 of the -43-200909505 which is the visible side of the display device. The display device has the same configuration. On the other hand, in the liquid crystal display device comprising the optical resin material of the present invention, the transparent resin layer formed of the optical resin material is provided. 3 to 6 are schematic cross-sectional views showing an example of the configuration of the liquid crystal display device of the present invention. The liquid crystal display device shown in Fig. 3 has a transparent resin layer 32 instead of the void 30 (Fig. 1) with respect to the conventional liquid crystal display device shown in Fig. 1. That is, the liquid crystal display device of FIG. 3 is composed of: a liquid crystal display unit 1; a polarizing plate 20 and 22 attached to the both surfaces; and a polarizing plate 20 which is provided on the visible side of the display device. The transparent resin layer 3 2; the transparent protective substrate 40 provided on the surface of the transparent resin layer 32; and the backlight system 50 provided on the lower surface of the polarizing plate 22. In the liquid crystal display device having such a configuration, compared with the conventional liquid crystal display device, since the combination of the transparent protective plate and the transparent resin layer improves the impact resistance, cracking is less likely to occur. Further, it has an advantage that the display ripple is less likely to occur even if the surface of the device is pressed. Similarly, in the configuration of the plasma display, when the resin composition of the present invention is kneaded between the front panel and the plasma display panel and hardened, it can be suppressed by the double mapping generated in the plasma display. The picture quality is reduced, and the contrast can be improved. As shown in Fig. 4, in the liquid crystal display device shown in Fig. 3, the order of the transparent resin layer 32 and the polarizing plate 22 can be reversed. In this case, an adhesive for attaching the transparent protective substrate to the polarizing plate or the like can be used. As shown in Fig. 3 and Fig. 4, when the liquid crystal display device having the transparent protective substrate 40 is provided, an antireflection layer, an antifouling layer, and a hard layer may be laminated on the surface of the transparent protective substrate as necessary. A functional layer such as a film layer. Further, as another configuration, a functional layer such as an antireflection layer, an antifouling layer, or a hard coat layer may be laminated on the surface of the polarizing plate 20. The liquid crystal display device may be configured not to be provided with the transparent protective substrate 40 in the configurations shown in Figs. 3 and 4. For example, the liquid crystal display device shown in FIG. 5 is composed of: a liquid crystal display unit 1; a transparent resin layer 3 2 and a polarizing plate 20 provided on the upper surface; and a polarizing plate 22 disposed under the liquid crystal display unit and The backlight system 50 is constructed. When the polarizing plate 20 is at the forefront, a functional layer such as a reflection preventing layer, an antifouling layer, or a hard coat layer may be laminated on the surface of the polarizing plate 20 as necessary. Further, as shown in Fig. 6, the liquid crystal display device can be configured by adjusting the order of the transparent resin layer 32 and the polarizing plate 20 in the liquid crystal display device shown in Fig. 5. When the transparent resin layer 32 is at the forefront, a functional layer such as an antireflection layer, an antifouling layer or a hard coat layer may be laminated on the surface of the transparent resin layer 32 as necessary. Although it is not particularly limited, it is preferable to provide at least a hard coat layer. The transparent protective substrate of the liquid crystal display device and the front panel used in other display devices may be general optical transparent substrates. Specifically, for example, a plate of an inorganic material such as a glass plate or a quartz plate; a resin plate such as an acrylic plate or a polycarbonate plate; and a resin sheet such as a thick polyester sheet. When a high surface hardness is required, it is preferably a glass plate, an acrylic plate or the like, and more preferably a glass plate. On the surface of these transparent protective substrates or front panels, treatment such as reflection prevention, antifouling, and hard film can be performed. This type of surface treatment, 45 - 200909505 can be applied to one or both sides of a transparent protective substrate. The transparent protective substrate or front panel ' can be used in combination with a plurality of sheets. The polarizing plate used in the liquid crystal display device may be a polarizing plate generally used in the art. The surface of these polarizers can be treated by reflection, antifouling, and hard film. This type of surface treatment can be applied to one or both sides of the polarizing plate. The liquid crystal display device having the transparent resin layer composed of the optical resin material of the present invention is specifically described above. However, the optical resin composition and resin material of the present invention are not limited to liquid crystal display devices, and may be applied to other image display devices such as electric paddles. In addition, the optical resin material of the present invention can be used not only as a constituent element of an image display device but also as a multilayer structure such as an optical filter produced by combining a layer having a desired function. For example, an 'optical filter can be laminated on a substrate such as glass, acryl, or polycarbonate plate, and a functional layer such as an antireflection layer, an electromagnetic wave shielding layer, or a near-infrared ray shielding layer can be used for the optical use of the present invention. Made of resin material. The electromagnetic wave shielding layer may have a visible light transmittance of 60% or more and electromagnetic wave shielding properties, and may have the same configuration as a generally known electromagnetic wave shielding layer. For example, a transparent conductive film, a conductive fiber mesh, or a screen made of a conductive ink can be used. From the viewpoint of having high transparency and high electromagnetic shielding, it is most desirable to be a metal mesh. The metal mesh screen can be applied to a transparent substrate such as a polyester film or a conductive metal foil such as a copper foil or an aluminum foil, and can be bonded to each other to form a layer of -46 - 200909505. Then, the conductive metal foil is subjected to uranium processing by a chemical etching process. The conductive metal foil to be used is laminated on the transparent substrate in such a manner that the surface is preferably a rough surface from the viewpoint of ensuring the adhesion and the rough surface of the conductive metal foil faces the layer of the adhesive. After the metal screen is produced by the above-mentioned hungry process, the resin is coated on the metal screen, and it is preferable to apply a resin which can be hardened by irradiation of radiation such as ultraviolet rays or electron wires. Irradiation of ultraviolet rays, electron beams, or the like to harden the resin 'by this, the layer of the adhesive to which the rough surface is transferred is flattened and formed to be transparent. The resin composition of the present invention can also be used as the resin applied to the metal mesh. Further, the antireflection layer may be formed by treating a transparent substrate such as a transparent plastic film by a known reflection preventing method as long as it exhibits a reflection preventing property of a visible light reflectance of 5% or less. Further, the near-infrared ray shielding layer may be composed of a resin obtained by dispersing a near-infrared ray absorbing material such as an ammonium salt (I m m ο n i u m S a 11 ) or a near-infrared ray shielding material. The near-infrared line shielding layer may also be laminated on a transparent substrate such as a transparent plastic film. In addition, a near-infrared ray absorbing material such as an ammonium salt or a near-infrared ray shielding material may be dispersed in the optical resin composition of the present invention, and used as a resin having near-infrared ray shielding energy. In the optical filter, not all of the functional layers such as the electromagnetic wave shielding layer, the antireflection layer, and the near-infrared ray shielding layer are required, and an appropriate layer required for lamination may be used for application. For example, an optical filter having an electromagnetic wave barrier layer or a near-infrared shielding layer as a functional layer is suitable for a plasma display. The functional layer may be laminated on one side of the transparent substrate or '-47-200909505 layered on both sides. Further, the layers having different functions may be laminated on both sides of the transparent substrate, or the layers having the same function on both sides may be laminated. In the case of constituting the multi-layer structure, the layer containing the optical resin composition or the optical resin material of the present invention is preferably formed on the outermost layer. Further, the order of the functional layers is not particularly limited, and can be appropriately changed. The lamination of the functional layer ' can be provided between the layers' and is carried out using a roll press or a blade laminator. Further, the optical filter thus produced can be attached to a specific position of the image display device by using a roll press or a blade bonding machine. The position to be attached differs depending on the configuration of the image display device, and may be, for example, the front surface of the image display panel or the front panel of the image display device. In this case, by forming a layer containing the optical resin composition or the optical resin material of the present invention on the outermost layer, a multilayer structure such as an optical filter can be bonded to an image display without using an adhesive. The front of the panel, or the front panel of the image display unit. EXAMPLES Hereinafter, the present invention will be specifically described by examples, but the scope of the invention is not limited to the examples. The term "weight average molecular weight" described below is obtained by performing gel permeation chromatography using THF as a solvent and converting the measurement enthalpy using a standard ethylene calibration curve. . (Example 1) 1 · Preparation of Copolymer - 48- 200909505 In a reaction vessel equipped with a cooling tube, a thermometer, a stirring device, and a dropping funnel injection tube, a scale of 2-ethylhexyl acrylate 84.0 g of enoic acid was used. 36.0 g of 2-hydroxyethyl ester and 150.0 g of methyl isobutyl ketone were initially substituted with nitrogen at a flow rate of 100 ml/min and heated from room temperature to 70 ° C between 15°C. Thereafter, while maintaining the temperature, 21.0 g of 2-ethylhexyl acrylate and 2-hydroxyethyl acrylate were weighed as additional monomers, and 6 g of oxidized laurel was dissolved in these oxidized laurel. The solution was dropped into the solution between 60 minutes. The reaction was further carried out for 2 hours after the completion of the dropwise addition. From the obtained reactant, methyl isobutyl ketone was distilled off to obtain a copolymer of 2-ethyl acrylate and 2-hydroxyethyl acrylate (weight average molecular weight 250,000) ° 2. Polyurethane acrylic acid The preparation of the ester is then carried out in a reaction vessel equipped with a cooling tube, a thermometer, a stirring device, a dropping bucket and an air injection tube, and the amount of polypropylene glycol (divided into 2,000) is 180 g, and 2-hydroxyethyl acrylate is 2.33 g. 0.5 g of p-Methoxyphenol, 5 g of bismuth laurate, which is a catalyst, is heated to 70 Ό while circulating air, and is stirred while maintaining the temperature at 70 to 75 °C. The reaction was carried out by dropwise dropping 2 2 · 2 g of isophorone diisocyanate at 2 hours. After the completion of the reaction, the reaction was carried out for about 5 hours, and then IR measurement was carried out to confirm the disappearance of the isocyanate. At this point, the reaction is terminated, and the polyurethane has a polymerizable unsaturated bond at both ends, and the nitrogen and propylene monomers are at a temperature of 70 ° C. 9.0 g, and the amount of the mixed solution is a leaking amount. Butyl. Between the titration, the enoic acid -49-200909505 ester (weight average molecular weight of 1 6,000) was obtained. 3. Preparation of optical resin composition The following compounds were weighed separately: (A) 24.88 g of the copolymer prepared in the above 1, (B1) 2-ethylhexyl acrylate (2EHA) 27.8 5 g (B2) Polyethylene glycol methacrylate U.94g (manufactured by Hitachi Chemical Co., Ltd., trade name "FA-400M", mainly for repeating units of 9) (C) Polyamino group prepared in the above 2 Formate acrylate ( UA 1 ) 3 4.83 g (D) 1-hydroxy-cyclohexyl-phenyl-acetone oxime. 50 g (manufactured by Ciba Japan Co., Ltd., trade name "lrgacure-184") was placed in the reaction vessel. The optical resin composition was prepared by mixing with a Three One Motor mixer at room temperature (25 t) for 30 minutes. -50- 200909505 It is said that the lower the number, the lower the irritation. First, the previously prepared optical resin composition is poured into a frame having a width of 100 mm, a length of 100 mm, and a depth of 〇5 mm, and the upper portion of the frame is covered with ultraviolet ray-transmissive glass, and then an ultraviolet ray irradiation device is used to accumulate an exposure amount of 3, The OOOmJ is irradiated with ultraviolet rays to harden the composition, thereby producing a sheet. The sheet is transparent. Next, the produced sheets were subjected to various tests shown below, and the characteristics were evaluated. The evaluation results are shown in Table 1. (Total Light Transmittance) Using the color difference/turbidity measuring instrument COH-300A (manufactured by Nippon Denshoku Industries Co., Ltd.), the total light transmittance of the produced sheet was measured, thereby evaluating the transparency. (ΔΥΙ) The color difference turbidity measuring device COH-300A (manufactured by Nippon Denshoku Industries Co., Ltd.) was used to measure the produced sheet (YI (Yellowness Index)) as shown in the following formula. The difference between YI and the YI measured after standing for 500 hours in a high temperature bath at 85 ° C was Δ YI. The smaller the Δ YI, the better the heat resistance and the smaller the coloration at high temperatures. △ YI = (YI after 500 hours) - (initial YI) (impact resistance) The impact resistance test was carried out in the following manner, that is, the front glass was attached to the side of one side of the produced sheet. Then, the thickness of 〇7 mm is matched with the glass used in the general liquid crystal panel, and the glass of the same is attached to the other side, and the steel ball of 510 g is dropped to the front glass side. The height from the front glass to the center of the steel ball was changed by 5 cm, 8 cm, 10 cm, 12 cm, 15 cm, and then 5 cm, and the steel ball was dropped, and it was judged whether or not the front glass was broken. The impact strength was calculated according to the following formula. Punching strength = steel ball weight (Kg) X height (m) x9.8 (m/s2) For example, when falling from a height of 5 cm, it is 51.51x〇 〇5x9 8 = 〇 25J. (Humidity resistance) The prepared sheet was placed in a high-temperature and high-humidity S-type tank at 60 ° C and 90% RH for 50 hours to carry out a moisture absorption test, and then the appearance change of the sheet was visually observed. In the sheet after the moisture absorption test, if it was not observed to be cloudy and the transparency was maintained, it was judged to be "good state". (Example 2) The following compounds were weighed separately. (A) Copolymer prepared in the above Example 4 47.5 0 g (B1) 2-ethylhexyl acrylate (2EHA) 3 3.26 g (B2) monomethyl Polyethylene glycol methacrylate 14.24g (manufactured by Hitachi Chemical Co., Ltd., trade name "fa_400M", mainly for repeating units of 9) (C) Polypropylene glycol diacrylate (PPgda) 5.00g (D ) 1-hydroxy-cyclohexyl-phenyl-acetone 0.51 g (manufactured by Ciba japan Co., Ltd., trade name "irgacure_ 184") -52- 200909505 was placed in a reaction vessel, using a Three〇ne Motor mixer at room temperature The mixture was stirred and mixed at 25 ° C for 30 minutes to prepare an optical resin composition. The obtained optical resin composition was subjected to the dexamethasone test in the same manner as in Example 1. As a result, the skin irritation was low, and itching did not occur during the treatment. In addition, the optical resin composition was poured into a frame having a width of 100 mm, a length of 100 mm, and a depth of 0.5 mm, and the upper portion of the frame was covered with ultraviolet ray-transmissive glass, and then an ultraviolet ray irradiation device was used to irradiate ultraviolet rays with an integrated exposure amount of 3,000 mJ. The object is hardened to thereby produce a sheet. The sheet is transparent. Next, the same test as in Example 1 was carried out on the produced sheet, and the characteristics were evaluated. The evaluation results are shown in Table 1. (Example 3) The following compounds were weighed separately: (A) Copolymer of Example 1 4 5 · 1 2 g (B1) isodecyl acrylate (ISA) 3 8.90 g (B2) monomethyl polyethylene glycol Methacrylate 11.6:7g (manufactured by Keli Chemical Industry Co., Ltd., trade name "FA-400M", mainly for repeating units of 9) (C) Polypropylene glycol diacrylate (PPGDA) 3.89g (D) 1-hydroxy-cyclohexyl-phenyl-acetone oxime. 43 g (manufactured by Ciba Japan Co., Ltd., trade name "Irgacure-184") was placed in a reaction vessel using 'Three〇ne Motor Blender, -53- 200909505 The resin composition for optics was prepared by stirring and mixing for 30 minutes under temperature (25 ° C). The obtained optical resin composition was subjected to the dexamethasone test in the same manner as in Example 1. As a result, the skin irritation was low, and itching did not occur during the treatment. In addition, the optical resin composition was poured into a frame having a width of 100 mm, a length of l〇〇mm, and a depth of 0.5 mm, and the upper portion of the frame was covered with ultraviolet-ray transmissive glass, and then irradiated with an ultraviolet irradiation device at an integrated exposure amount of 2,000 mJ. Ultraviolet rays harden the composition to thereby produce a sheet. The sheet is transparent. Next, the produced sheets were subjected to various tests similar to those of Example i and evaluated for the characteristics. The evaluation results are shown in Table 1. (Example 4) 1. Polyurethane acrylate was prepared in a reaction vessel equipped with a cooling tube, a thermometer, a stirring device, a dropping funnel, and an air injection tube, and the amount was scaled to form butanediol (molecular weight 8 50) 520.80g, diethylene glycol l_06g, modified by unsaturated fatty acid hydroxyalkyl ester ε-caprolactone (PLACCEL FA 2D: Daicel Chemical Industry Co., Ltd. trade name) 275.20g, as a polymerization inhibitor 5 g of p-methoxyphenol oxime and 0.3 g of dibutyl dilaurate as a catalyst, and the temperature was raised to 70 °C. Thereafter, stirring was carried out while maintaining the temperature at 70 to 75 ° C, and 222 g of isophorone diisocyanate was uniformly dropped over 2 hours to carry out a reaction. After the completion of the dropwise addition, the reaction was further carried out for about 5 hours, and then IR measurement was carried out. As a result, the disappearance of the isocyanate was confirmed. At this point, the end reaction is carried out to obtain a polyurethane having a weight average molecular weight of 7,000. -54-200909505 acrylate. 2. Preparation of Optical Resin Composition The following compounds were weighed separately: (A) Copolymer prepared in Example 1 4 7.0 0 g (B1) 2-ethylhexyl acrylate (2EHA) 33.25 g (B2) Monomethylpolyethylene glycol methyl propyl j: 14.25 g of citric acid vinegar (manufactured by Keli Chemical Industry Co., Ltd., trade name "FA-400M", mainly for repeating units of 9) (C) above 1 Polyurethane acrylate (UA2) 5.00g (D) 1-hydroxy-cyclohexyl-phenyl-acetone oxime 5〇g (manufactured by Ciba Japan Co., Ltd., trade name r irgacure_ 184) The mixture was placed in a reaction vessel, and a three-way sampler was used, and stirred and mixed at room temperature (25 ° C) for 30 minutes to prepare an optical resin composition. The obtained resin composition for optical use was subjected to the dexamethasone test in the same manner as in Example 1. As a result, the skin irritation was low, and itching did not occur during the treatment. Further, the optical resin composition was poured into a frame having a width of 100 mm, a length of 100 mm, and a depth of 0.5 mm, and the upper portion of the frame was covered with ultraviolet ray-transmissive glass, and then an ultraviolet ray irradiation device was used to have an exposure amount of 3,0 0 m J The composition is cured by irradiation with ultraviolet rays to thereby produce a sheet. The sheet is transparent. Next, various tests identical to those of Example i-55-200909505 were carried out on the produced sheets and the characteristics were evaluated. The evaluation results are as follows in Table 1 (Example 5). The following compounds were weighed separately: (A) Copolymer of Example 1 47_50 g (B1) Lauryl acrylate (TDA) 3 3.25 g (B2) Monomethylpolyethylene Alcohol methacrylate 14.2g (manufactured by Hitachi Chemical Co., Ltd., trade name "FA_400M", mainly for repeating units of 9) (C) Polypropylene glycol diacrylate (PPGDA) 5.〇〇g ( D) 1-hydroxy-cyclohexyl-phenyl-acetone oxime. 49 g (manufactured by Ciba Japan Co., Ltd., trade name "Irgacure-184") was placed in a reaction vessel using a Three One Motor mixer at room temperature (25°). C) The mixture was stirred and mixed for 30 minutes to prepare an optical resin composition. The obtained optical resin composition was subjected to the dexamethasone test in the same manner as in Example 1. As a result, the skin irritation was low, and itching did not occur during the treatment. In addition, the optical resin composition was poured into a crucible having a width of 100 mm, a length of 100 mm, and a depth of 〇5 mm, and the upper portion of the frame was covered with ultraviolet light-transmitting glass, and then irradiated with ultraviolet rays at a cumulative exposure amount of 2,000 mJ using an ultraviolet irradiation device. The object is hardened to thereby produce a sheet. The sheet is transparent. Next, the same test as in Example 1 was carried out on the produced sheet, and the characteristics were evaluated. The evaluation results are shown in Table 1. -56- 200909505 (Example 6) The following compounds were weighed separately: 4 8.5 1 g 29.1 〇g 1 9_40g (A) Copolymer of Example 1 (B1) 2-ethylhexyl acrylate (2EHA) (B2) Methyl polyethylene glycol acrylate (manufactured by Shin-Nakamura Chemical Co., Ltd., trade name "NK Ester AM-90G")

(C) Polypropylene glycol diacrylate (PPGDA) 3-°°S (D) 1-Hydroxy-cyclohexyl-phenyl-acetone oxime·52§ (manufactured by Ciba Japan Co., Ltd., trade name “Irgacure_ 184”) The mixture was placed in a reaction vessel, and stirred and mixed at room temperature (25 ° C) for 30 minutes using a Three One Motor mixer to prepare an optical resin composition. The obtained optical resin composition was subjected to the dexamethasone test in the same manner as in Example 1. As a result, the skin irritation was low, and itching did not occur during the treatment. In addition, the optical resin composition was poured into a frame having a width of 100 mm, a length of 100 mm, and a depth of 〇5 mm, and the upper portion of the frame was covered with the ultraviolet ray-transmissive glass, and the ultraviolet ray irradiation device was used to irradiate the ultraviolet ray with an accumulated exposure amount of 1,300 mJ. The composition is hardened to thereby produce a sheet. The sheet is transparent. Next, the same test as in Example 1 was carried out on the produced sheet, and the characteristics were evaluated. The evaluation results are shown in Table 2. -57- 200909505 (Example 7) The following compounds were weighed separately: (A) Copolymer of Example 1 48_99 g (B1) isodecyl acrylate (ISA) 29_41 g (B2) Polypropylene glycol acrylate 19.60 § (曰Manufactured by Oil Co., Ltd., trade name "B1emmer ΑΡ-400 j ) (C) Polypropylene glycol diacrylate (PPGDA) 1.99g (D ) 1-Hydroxy-cyclohexyl-phenyl-acetone oxime.49g (Ciba Japan limited stock) The product name "Irgacure-184" was placed in a reaction container, and the resin composition for optical use was prepared by stirring and mixing at room temperature (25 ° C) for 30 minutes using a Three One Motor mixer. The obtained optical resin composition was subjected to the dexamethasone test in the same manner as in Example 1. As a result, the skin irritation was low, and itching did not occur during the treatment. In addition, the optical resin composition was flowed into a frame having a width of 100 mm, a length of 1 mm, and a depth of 0.5 mm, and the upper portion of the frame was covered with ultraviolet light-transmitting glass, and then an ultraviolet irradiation device was used to accumulate an exposure amount of 1 300 mJ was irradiated with ultraviolet rays to harden the composition, thereby producing a sheet. The sheet is transparent. Next, the same test as in Example 1 was carried out on the produced sheet, and the characteristics were evaluated. The evaluation results are shown in Table 2. (Example 8) -58- 200909505 The following compounds were respectively weighed: (A) Copolymer 4 prepared in Example 1 7.4 8 g (B1) 2-ethylhexyl acrylate (2EHA) I8.33 g (B1 ) 2-ethylhexyl diglycol acrylate 18.34g (manufactured by Kyoeisha Chemical Co., Ltd., trade name "Light Acrylate EHDG-AT") (B2) Monomethyl polyethylene glycol methacrylate 8.35g ( Hitachi Chemical Co., Ltd., trade name "FA-400M", mainly for repeating units of 9) (C) Polypropylene glycol diacrylate (ppGDA) 5. 〇〇g (D) 1-hydroxy-cyclohexyl -Phenyl-acetone oxime _5 〇g (manufactured by Ciba Japan Co., Ltd., trade name "Irgacure_ 184") was placed in a reaction vessel and subjected to a Three One Motor mixer at room temperature (25 ° C). The resin composition for optics was prepared by stirring for a minute. The obtained optical resin composition was subjected to the dexamethasone test in the same manner as in Example 1. As a result, the skin irritation was low, and itching did not occur during the treatment. Further, the optical resin composition was poured into a frame having a width of 100 mm, a length of 100 mm, and a depth of 〇5 mm, and the upper portion of the frame was covered with ultraviolet-ray transmissive glass, and then heated in a blower at 70 ° C for 3 hours to form a composition. It is hardened to produce a sheet. The sheet is transparent. Next, the same test as in Example 1 was carried out on the produced sheet, and the characteristic was evaluated -59-200909505. The evaluation results are shown in Table 2. (Example 9) The following compounds were weighed separately: 47.49 g 33.25 g 1 4.26 g (A) Copolymer prepared in Example 1 (B1) 2-ethylhexyl acrylate (2EHA) (B2) monomethyl Polyethylene glycol methyl propionate (product name "FA_400M", manufactured by Hitachi Chemical Co., Ltd., mainly for repeating units of 9) (C) Polypropylene glycol diacrylate (ppgda) 5. g (D) Bismuth peroxide (LPO) 〇4〇g is placed in the reaction cell. Using a ThreeOne Motor mixer, stirring and mixing at room temperature (25C) for 30 minutes to prepare an optical resin composition. . The obtained optical resin composition was subjected to the dexamethasone test in the same manner as in Example 1. As a result, the skin irritation was low, and itching did not occur during the treatment. Further, the optical resin composition was poured into a frame having a width of 100 mm, a length of 100 mm, and a depth of 〇5 mm, and the upper portion of the frame was covered with ultraviolet ray-transmissive glass, and then the composition was cured by heating in a 7 TC air blower for 3 hours. Thus, a sheet was produced, and the sheet was made transparent. Then, the same test as in Example 1 was carried out on the produced sheet ', and the characteristics were evaluated. The evaluation results are shown in Table 2. (Comparative Example 1) -60 - 200909505 The following compounds were weighed: (A) Copolymer 4 prepared in Example 1 7.5 0 g (B1) 2-ethylhexyl acrylate (2EHA) 47.5 0g (C) 1,6-hexanediol diacrylate (1,6-HxA ) 5.00 g (D ) 1-hydroxy-cyclohexyl-phenylacetone 0.50 g (manufactured by Ciba Japan Co., Ltd., trade name "irgacure_ 184") was placed in a reaction vessel, using ThreeOne Motor The optical resin composition was prepared by stirring and mixing for 30 minutes at room temperature (25 ° C). The obtained optical resin composition was subjected to the same procedure as in Example 1. Test's results in low skin irritation and disposal In addition, the optical resin composition was flowed into a frame having a width of 100 mm, a length of 100 mm, and a depth of 〇5 mm, and the upper portion of the frame was covered with ultraviolet-ray transmissive glass, and then an ultraviolet irradiation device was used. The composition was cured by irradiating ultraviolet rays of 2,00 〇mJ to form a sheet, and white turbidity was generated in the sheet, which was inferior in transparency. Then, the same test as in Example 1 was carried out on the produced sheet, and the characteristics were evaluated. The evaluation results are shown in Table 3. (Comparative Example 2) The following compounds were weighed separately: -61 - 200909505 (A) The copolymer prepared in Example 1 47.50 g (B2) monomethylpolyethylene glycol Acrylate 47.50g (manufactured by Keli Chemical Industry Co., Ltd., trade name "FA-40 0M", mainly for repeating units of 9) (C) 1,6-hexanediol diacrylate (l, 6 -HxA ) 5. 〇〇g (D ) 1-hydroxycyclohexyl-phenyl-acetone oxime. 5〇g (manufactured by Ciba Japan Co., Ltd., trade name "Irgacure-184") is placed in a reaction container. 30 at room temperature (25 ° C) using a ThreeOne Motor mixer The optical resin composition was prepared by stirring and mixing the bell. The obtained optical resin composition was subjected to the dexamethasone test in the same manner as in Example 1, and as a result, the skin irritation was low, and it was not treated. In addition, the optical resin composition was poured into a frame having a width of 100 mm, a length of 100 mm, and a depth of 0.5 mm, and the upper portion of the frame was covered with ultraviolet ray-transmissive glass, and then irradiated with an ultraviolet ray irradiation device. Ultraviolet rays of OOmJ harden the composition to produce a sheet. White turbidity occurs in the sheet, and its transparency is poor. Next, the same test as in Example 1 was carried out on the produced sheet, and the characteristics were evaluated. The results of the assessment are shown in Table 3. (Comparative Example 3) The following compounds were weighed separately: -62- 200909505 (A) 47.5 〇g of the copolymer prepared in Example 1 (B1) 2-ethylhexyl acrylate (2EHA) 3 3.25 g (B2, ) 2-Hydroxyethyl acrylate (HEA) 14.25g (C ) 1,6-hexanediol diacrylate (1,6-ΗχΑ) 5.00g (D ) 1-hydroxy-cyclohexyl-phenyl-acetone 0.50g (The product name "Irgacure-184", manufactured by Ciba Japan Co., Ltd.) was placed in a reaction vessel, and a three-minute stirring and mixing was carried out at room temperature (25 ° C) using a Three One Motor mixer to prepare an optical resin. Composition. The obtained optical resin composition was subjected to the dexamethasone test in the same manner as in Example 1. As a result, the skin irritation was high, and itching occurred during the treatment. In addition, the optical resin composition was poured into a frame having a width of 100 mm, a length of 100 mm, and a depth of 0.5 mm, and the upper portion of the frame was covered with ultraviolet ray-transmissive glass, and then the ultraviolet ray irradiation device was used to irradiate the ultraviolet ray of 2,000 mJ to harden the composition. This produces a sheet. The sheet is transparent. Next, the same test as in Example 1 was carried out on the produced sheet ', and the characteristics were evaluated. The results of the assessment are shown in Table 3. (Comparative Example 4) The following compounds were weighed separately: -63- 200909505 (A) Copolymer prepared in Example 1 47.5 0 g (B1) 2-ethylhexyl acrylate (2EHA) 47.5 〇g (C) Propylene glycol diacrylate (ppgda) 5. 〇〇g (D) 1-hydroxy-cyclohexyl-phenyl-acetone oxime 5〇g (manufactured by Ciba Japan Co., Ltd., trade name "Irgaeure. 184") In the vessel, the resin composition for optical use was prepared by stirring and mixing at room temperature (25 ° C) for 30 minutes using a Three One Motor mixer. With respect to the obtained optical resin composition, the dexamethasone test was carried out in the same manner as in Example 1. As a result, the skin irritation was low, and itching did not occur during the treatment. Further, the optical resin composition was flowed into a frame having a width of 100 mm, a length of 1 mm, and a depth of 0.5 mm, and the upper portion of the frame was covered with ultraviolet light-transmitting glass, and then irradiated with an ultraviolet irradiation device. Ultraviolet rays of OOOmJ harden the composition to produce a sheet. White turbidity occurs in the sheet, and its transparency is poor. Next, the same test as in Example 1 was carried out on the produced sheet, and the characteristics were evaluated. The results of the assessment are shown in Table 3. (Comparative Example 5) The following compounds were weighed separately: -64- 200909505 (A) 24.88 g of the copolymer prepared in Example 1 (B1) 2-ethylhexyl acrylate (2EHA) 2 7.8 5 g (B2' 2-Hydroxyethyl acrylate (HEA) M.94g (C) Polyurethane acrylate (UA 1 ) prepared in Example 1 34.83 g (D) 1-Hydroxy-cyclohexyl-benzene Base-acetone oxime 5 〇g (manufactured by Ciba Japan Co., Ltd., trade name "Irgacure. 184") was placed in a reaction vessel, and subjected to a Three One Motor mixer at room temperature (25 ° C) for 30 minutes. The mixture was stirred and mixed to prepare an optical resin composition. With respect to the obtained optical resin composition, the dexamethasone test was carried out in the same manner as in the examples, and as a result, the skin irritation was high, and itching occurred during the treatment. In addition, the optical resin composition was poured into a frame having a width of 100 mm, a length of 100 mm, and a depth of 0.5 mm, and the upper portion of the frame was covered with ultraviolet-ray transmissive glass, and then irradiated with an ultraviolet irradiation device to irradiate 2,000 mJ. Ultraviolet rays harden the composition to thereby produce a sheet. The sheet is transparent. Next, the produced sheets were subjected to various tests in the same manner as in Example 1 and evaluated for the characteristics. The results of the assessment are shown in Table 3. (Comparative Example 6) The following compounds were weighed separately: -65- 200909505 (A) Copolymer prepared in Example 1 47,00 g (B1) 2-ethylhexyl acrylate (2EHA) 3 3.25 g (B2' 2-Hydroxyethyl acrylate (HEA) I4.25g (C) Polyurethane acrylate (UA2) prepared in the above 1 5. 〇〇g (D) 1-hydroxy-cyclohexyl-phenyl - Acetone oxime. 50 g (manufactured by Ciba Japan Co., Ltd., trade name "irgacure_ 184") was placed in a reaction vessel, and stirred and mixed at room temperature (25 ° C) for 30 minutes using a ThreeOne Motor chopper. An optical resin composition was prepared. The obtained optical resin composition was subjected to the dexamethasone test in the same manner as in Example 1. As a result, the skin irritation was high, and itching occurred during the treatment. In addition, the optical resin composition was poured into a frame having a width of 100 mm, a length of 100 mm, and a depth of 0.5 mm, and the upper portion of the frame was covered with ultraviolet-ray transmissive glass, and then ultraviolet rays of 2,00 m:i were irradiated using an ultraviolet irradiation device. The composition is hardened to thereby produce a sheet. The sheet is transparent. Next, the produced sheets were subjected to various tests in the same manner as in Example 1 and evaluated for the characteristics. The results of the assessment are shown in Table 3. The first to third tables show the main components and various evaluation results of the optical resin compositions of the above Examples 1 to 9 and Comparative Examples 1 to 6. In each table, "one" indicates that it has not been measured. Further, the evaluation of the moisture resistance reliability "G" indicates that no turbidity was observed in the sheet, and the sheet was in a good state in which transparency could be maintained. -66- 200909505 [Table 1] Example 1 2 3 4 5 Composition B1 2EHA 2EHA ISA 2EHA TDA B2 FA-400M FA-400M FA-400M FA-400M FA-400M C UA1 PPGDA PPGDA UA2 PPGDA D 1-184 1 -184 1-184 1-184 1-184 Evaluation of total light transmittance 86% 87% 87% 85% 87% ΔΥΙ — 0.5 0.5 — 0.5 Impact resistance 0.5J 0.4J 0.6J 0.5J 0.4J Moisture resistance reliability GGGGG PII 1 1 1 1 1 [Table 2] Example 6 7 8 9 Composition B1 2ΕΗΑ ISA 2EHA/EHDGAT 2EHA B2 AM-90G AP-400 FA-400M FA-400M C PPGDA PPGDA PPGDA PPGDA D 1-184 1-184 1-184 LPO Evaluation of total light transmittance 88% 87% 87% 86% ΔΥΙ 0.6 0.7 — 0.5 Impact resistance 0.5J 0.5J 0.4J 0.5J Moisture resistance reliability GGGG ΡΙΙ 1 1 1 1 -67- 200909505 [第3 Table] Comparative Example 1 2 3 4 5 6 Composition B1 2EHA 0 2EHA 2EHA 2EHA 2EHA B2 0 FA-400M HEA 0 HEA HEA C 1,6-HxA 1,6-HxA 1,6-HxA PPGDA UA1 UA2 D 1-184 1-184 1-184 1-184 1-184 1-184 Evaluation of total light transmittance White turbidity and white turbidity 87% White turbidity 89% 89% ΔΥΙ —— — 2.5 — 3.0 2.8 Impact resistance — — 0.5J — 0.5J 0.5J Resistance Wet reliability one - G - G G PII - ~~- 8 - 7.2 7.2 (Example 1 〇) This example relates to the production and evaluation of a liquid crystal display device having a transparent resin layer formed of the optical resin composition of the present invention. The production of the liquid crystal display device is carried out in accordance with the following steps. First, in order to form a transparent resin layer, four sides of an AG-treated polarizing plate which is previously attached to the surface of a liquid crystal display unit having a diagonal of 32 Å are attached with a short side having a thickness of 0.5 mm and a width of 5 mm. Thereby a mold frame is formed. Then, the optical resin composition prepared in Example 2 was flowed into the mold frame, and covered with a soda glass plate having a diagonal of 3 2 Å and a thickness of 2 · 8 mm so as not to allow air bubbles to enter. surface. The soda glass plate is one in which an antireflection layer is formed in advance on the surface. Then, a transparent resin layer was produced by irradiating ultraviolet rays with a cumulative exposure amount of 2,000 mJ from above the reflection preventing layer of the soda glass plate by using a conveyor type ultraviolet irradiation device having a metal halide lamp to cure the resin composition. As described above, the transparent resin layer, the soda glass plate, and the antireflection layer are sequentially laminated on the surface of the liquid crystal display unit. -68- 200909505 Then, the previously obtained liquid crystal display unit was mounted on a housing having a backlight unit and a drive circuit to fabricate a liquid crystal display device. When the liquid crystal display device was produced, it was found that the discoloration of the liquid crystal display device caused by the coloring of the resin material did not occur, and no glass or floating was generated at the interface between the transparent resin layer and the glass plate. Missing. Further, the liquid crystal display device did not cause deterioration in image quality due to double mapping, and even the surface of the contact device did not observe deterioration in image quality due to distortion of the panel. (Comparative Example 7) A liquid crystal display device in which a transparent resin layer, a sodium glass plate, and an antireflection layer were sequentially laminated on the surface of a liquid crystal display unit was produced in the same manner as in Example 1 using the resin of Comparative Example 1. In the liquid crystal display device produced, the transparent resin layer is white turbid, which causes a lack of image quality such as whitening of the displayed image and reduction in brightness. From the above description, it will be apparent that a wide variety of embodiments may be constructed without departing from the spirit and scope of the invention. In addition, the invention is not limited to the specific embodiment. Any restrictions on the state. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a side cross-sectional view schematically showing a configuration example of a conventional liquid crystal display device. Fig. 2 is a side cross-sectional view showing a configuration example of a conventional liquid crystal display device -69-200909505. Fig. 3 is a side cross-sectional view showing a configuration example of a liquid crystal display device of the present invention. Fig. 4 is a side cross-sectional view showing a configuration example of a liquid crystal display device of the present invention. Fig. 5 is a side cross-sectional view schematically showing a configuration example of a liquid crystal display device of the present invention. Fig. 6 is a side cross-sectional view showing a configuration example of a liquid crystal display device of the present invention. [Description of main component symbols] 1 〇 : Liquid crystal display unit 20, 22: Polarizing plate 3 〇 : Clearance 3 2 : Transparent resin layer 4〇: Transparent protective substrate 5 〇 : Backlight system -70-

Claims (1)

200909505 X. Patent application scope 1. An optical resin composition containing a narrow (A) (meth)acrylic derivative (B) 1-functional (meth)acrylic derivative (¢) 2 mesh gg The above (meth) propylene resin composition characterized in that the (B) monofunctional (meth) propylene system comprises: (B1) represented by the following general formula (at least one of A; [Chemical II CH2=CHCO(OC丨H2|)m〇CnH2n+1 (wherein 1 is an integer of 2 to 4, m is an integer of 〇) and (B 2 ) is 4 or more ethers from the number of repeating units (methyl The acrylate and the group of repeating units are selected from the group consisting of 4 (meth) acrylate. 2. The optical fiber of the above (B) 1-functional (meth)acrylic acid contains at least (Methyl) acrylate alkyl ester. 3 · The optical component of the above (B) 1-functional (meth)acrylic acid containing at least a polyolefin oxyalkyl ether (methyl) propyl 4 as in the optical application of claim 1 In the optical of the second aspect of the patent, 'the aforementioned alkyl (meth)acrylate has t; biomonomer: and acid The optical acid derivative monomer of the derivative, the acryl-based monomer (1) or the polyolefin oxyalkyl group having a η of 8 to 18 or more is at least one selected from the above. A resin composition, which is a derivative monomer, is a resin composition, which is a derivative monomer, and is an acid ester. A resin composition having a branched structure. -71 - 200909505 5. The optical resin composition of claim 3, wherein the polyolefin oxyalkyl ether (meth) acrylate comprises monomethyl nonaethylene glycol ether methacrylate . 6. The optical resin composition of claim 4, wherein the decyl (meth) acrylate having a branched structure comprises 2-ethylhexyl acrylate. 7. The optical resin composition of any one of claims 1 to 6 wherein the (A) (meth)acrylic derivative polymer is an alkyl acrylate having a carbon number of 4 to 18 and A copolymer of a hydroxy group having a hydroxyl group. 8. The optical resin composition according to claim 7, wherein the (A) (meth)acrylic derivative polymer is a copolymer of 2-ethylhexyl acrylate and 2-hydroxyethyl acrylate. . The optical resin composition of any one of claims 1 to 6 which further contains (D) a polymerization initiator. 10. The optical resin composition according to claim 9, wherein the (D) polymerization initiator is a photopolymerization initiator. 11. The optical resin composition according to claim 10, wherein the photopolymerization initiator comprises: (d) a-hydroxyalkylphenone-based compound; (d 2 ) fluorenylphosphine oxide Compounds; (d3) low (2-hydroxy-2-methyl(4-(1-methylvinyl)phenyl)propanone); and (d4)oxy-phenyl-acetic acid 2-[2 -oxo-2-phenylethyloxy-ethyl-72- 200909505 oxy]-ethyl ester and oxy-phenyl-acetic acid 2-[2-hydroxy-ethoxy]-ethyl ester mixture At least one selected from the group consisting of. The optical resin composition according to any one of the items 1 to 6, wherein the (A) (meth)acrylic derivative polymer has a weight average of 100,000 to 700,000. Molecular weight. A resin material for optical use, which is obtained by curing the optical resin composition according to any one of claims 1 to 6. The optical resin material of claim 13 of the patent application, which has a sheet-like or film-like shape. -73-