TW201213459A - Photo-curable coating compositions with water vapor barrier - Google Patents

Abstract

The present invention relates to a photo curable coating composition, which comprises (A) a branched acrylic polyurethane in an amount of 0. 1 to 50wt%, (B) para-phenol epoxy acrylic resin in an amount of 0.1 to 40wt%, (C) mono- or multi-functional acrylic monomer in an amount of 30 to 70wt%, and (D) photoinitiator in an amount of 1 to 20wt%. According to the present composition, when it is cured and formed into a film, it exhibits a higher water vapor barrier and better flexible properties than that prepared from prior coating composition.

Description

201213459 VI. Description of the Invention: [Technical Field According to the Invention] The present invention relates to a photocurable coating composition which can be formed by a simple coating process, and the film obtained from the composition has excellent water vapor barrier properties and scratches It has excellent curvature and can be used in applications that need to block moisture, such as various containers, packaging materials, panels, and solar cell packaging materials. [Prior Art]

Plastic substrates or sheets have been used in various fields, such as various containers, packaging materials, panels, and solar cell packaging protective materials. For example, U.S. Patent No. 7,393,581 discloses a plastic substrate having a plurality of layers. The patent document is based on the sacred liquid of the Yushui Department of the Yu County, the organic device, and the electronic paper, and the plastic substrate comprises a plastic film attached to each other and organically stacked on both sides of the plastic film. The first buffer layer, the gas barrier layer, and the second buffer layer of the inorganic-inorganic hybrid. Although the substrate is a sorrowful water-blocking gas characteristic, its structure is symmetrical and must be accurately aligned; the i制国国严号 No. 5,840,825 discloses a gas barrier coating and its eve Layer packaging material. The gas barrier coating comprises an amine: (8) an amine with epichlorohydrin and/or polyweilate and (c) a filler. And (4) the polyplate comprises at least the following: (the beginning of the impurity and (b) the unsuccessful trace of the precursor, and the starting polyamine and the surface alcohol and/or having a plurality of bonds to the aromatic molecule ^ a reaction product of a base epoxide, and (c) a filler comprising a plate-like filler having a particle size: (&) number average particle diameter of about 55 to 15 micro dry squares and (9) volume average particles The diameter is in the range of about 8 to 25 microns. The coatings in this document have the potential for mass production and economic value. The improvement of the poor water vapor barrier and oxygen barrier properties of plastic substrates is mostly based on the substrate. The protective layer hard coating barrier coating) to achieve low humidity sensitivity and high gas barrier properties. ...Haifang _ coating multiple layers and the more complicated, but there is still room for improvement. 201213459=Important and tearable material (4) Personnel thief 'Wei 対 specific light of the object can be changed 4 to obtain the protective film transparency function' and the protective coating film composition can be light The joint method is manufactured by the coating process of making the light, so that the present invention [the content of the invention] solid; = (,) light a ^,, . . . 00, the right to the traditional coating, can be k The two barrier properties of the water supply gas, the process of obtaining a protective coating on the low temperature photocuring cross-linking is provided by the purpose of providing a fine coating composition comprising a branched acrylate polyurethane of (ι) , 田) αι~40% by weight of glutinous benzophenone epoxy acrylate resin, (C) 30~75% by weight of single or Erlu month b-based propylene glycol monomer, and (D) 1~ 2% by weight of photopolymerization initiator 0 Composition ^=^ The present invention provides a photocurable coating (Α) 0.1 50 by weight with water vapor barrier properties. / Branched with the branched polyacrylic acid ester of the following formula 1:

— R

4 (I) 201213459 wherein R represents deuterium or CH3, R1 represents a tetravalent aliphatic group, R2 represents a divalent lipid-aliphatic group or an alicyclic group, and R3 represents a monovalent aliphatic group, a vinyl group, a propylene group. a methacrylic fluorenyl group, and n^3' is preferably a value between 3 and 64; (8) 0.1 to 40% by weight of an aliphatically modified phenolic epoxy resin of the following formula (II) :

R (H2 OH 〇H people Re Bu C' 0

(where x = 1 to 10 integers)

Rb represents hydrazine or methyl; Rc represents Cm alkyl, _si〇si_yl, _c〇_yl-fluorenyl, -NHCO-yl, -C6H4-yl, :3⁄4 represents Q-6 alkyl or c26j Alkenyl group, y = an integer of 1 to 10 and w = 1 or 2; and (C) 30 to 75% by weight of a mono- or polyfunctional acrylic monomer; and (D) 1 to 20% by weight of ruthenium polymerization Starting agent. The photocurable coating composition according to the present invention (hereinafter sometimes referred to simply as "coating composition"), when applied to a substrate to form a film, can be provided to the substrate and coated by the fine b of the present invention The composition and the light transmittance of the coating composition, so that the original color of the substrate can not be concealed, and the color can be made according to the use of the substrate. f Embodiments: : ester: ― a fine coating group with a nuclear resistance (A) 0.1 to 50 罝 罝 具有 具有 具有 纟 纟 纟 纟 纟 纟 纟 纟 纟 纟 纟 纟 纟 纟 纟 纟 纟

R

(I) wherein R represents H or CH3, R1 represents a tetravalent aliphatic group, R2 represents a divalent monthly aliphatic or alicyclic group, and R3 represents a monovalent aliphatic group, a vinyl group, a propylene group or a methyl group. a propylene-based base, and n23, preferably a value between 3 and 64;

(B) 0.1 to 40% by weight of the aliphatic modified of the following formula (II) to the cumbersome epoxy acrylic resin:

(where x = 1 to 10 integers)

Rb represents hydrazine or methyl; Rc represents Cm alkyl, -SiOSi-yl, _c〇-yl, aryl-yl, -NHC0-yl, -QHryl: : 3⁄4 represents Cl.6 alkyl or C2 fluorenyl ' y = an integer of 1 to 10 and w = 1 or 2; and (C) 30 to 75% by weight of a mono- or polyfunctional acrylic monomer; and (D) 1 to 2% by weight of photopolymerization Starting agent. The cover material of the present invention has the lower light-polyacrylic acid polyurethane, and the proportion thereof is preferably 15 to 3% by weight, and for example, the product number of the new force is limited to 201213459 23〇A2. The product number Ebecryl 1290 manufactured by Cytec Industrial Co., Ltd. and the product of Changxing Chemical Gamal Chemieal) x·Industry Co., Ltd. No. 6145-100. In the present invention, the aliphatically modified p-benzoic epoxy resin having the formula (9) of the component (6) in the coating composition is preferably in an amount of up to 15% by weight, and may be exemplified by, for example, Xinlimei Technology Product No. Ag1Syn 3051 manufactured by Co., Ltd., product number 3702 manufactured by Cytec Industrial Co., Ltd., product number CN116/A31〇 manufactured by Sartomer Co., Ltd., and Actllane 310 (AkzoNobel Resin Co., Ltd.) The single or polyfunctional acrylic acid-containing body of the component (c) in the coating composition is a __ monomer having a weight average molecular weight of less than or equal to polystyrene measured by GPC, and the weight average molecular weight is good. ^60~800: The mono- or polyfunctional acrylic monomers can be exemplified by, for example, acrylic acid 2, thioglycol, methacrylic acid 2, methacrylic acid, acrylic laurel, acrylic acid 2-( 2-ethoxyethoxy)acetic acid, tripropylene glycol dipropylene _, di propylene glycol diacrylate g, polyethylene glycol (c) dipropionate, trimethyl propyl acrylate = acrylic acid g Purpose, pentaerythritol triacrylate g, two Pentaerythritol hexaacetic acid vinegar and the like. These acrylic monomers may be used singly or in combination of two or more. The photoinitiator of the component (D) in the coating composition of the present invention can be decomposed into a radical 'cation, an anion and the like, an active site M吏' monomer and oligomer by irradiation with light. Polymerizer. The light source to be illuminated may be visible light, material light, far-light, near-light, electron beam and chirp or various heat sources with temperature, such as oven, hot air, and heat radiation. The photoinitiator used is exemplified by, for example, a ketone compound, a ruthenium phosphine oxide, a phosphine oxide, a tri-noise derivative, a hydrazine derivative, a bismuth compound, a ruthenium compound, and a stupid The ether and its alkyl ether compound, azo type, peroxide, etc., for example, are as follows: Ρ, bis-bis(dimethylamino)benzonitrile, ρ, ρ, bis(diethylamino) Ride, Ρ'Ρ-bis(dibutylamino)benzil g, 3,3-dimercapto-4-methoxydibenzophenone, diphenyl f-ketone, 2-hydroxy-2-indenyl -i_phenylacetone, hydroxylphenyl remaining, yl-H4#thio)phenyl-lowering _L^4: (2_201213459 light ethoxy)phenyl-2-(trans-base) 2-propyl) ketone, p-phenyldibenzophenone, 4,4'-diethylaminobenzophenone, dichlorobenzophenone, α-hydroxyisobutylbenzophenone, 2_phenylhydrazine Benzyl-2-diamino-l-(4-diphenyl)-butanone-1, dibenzocycloheptanone, 1·(4·cumyl)-2-yl-2- Methyl-1-propanone, 2-mercapto-[4-(methylthio)phenyl]-2-morphinacetone, 2-phenylhydrazino-2-dimethylaminomorpholinophenyl) Alkan-1-one, 1-cyclohexyl phenyl ketone, hydrazine , 9,1〇_蒽 ketone, 2_ethyl_9,1〇_蒽嗣, phenylethylidenedione, oxime ketone, 2-mercaptosulfide oxynitride, 2,4-diethyl Sulfur oxoquinone, quinolone, benzoin, ketals, phenelzine, 2,2-methoxy-2-phenylacetophenone, 2,2-diethyl Oxy-2-phenylacetophenone, monochloroacetophenone, 1-cyclohexylbenzophenone, 2-mercaptopurine, 2-ethyl η dysone, 2-ox thioxanthone, 2,4-dimethylthioxanthone, 2,4-diethylthioxanthone, 2,4-dithioxyl ketone, 2,4-diethylthioxanthone, 2-chlorothioxanthone, 2,4·diisopropyl. a ketone compound such as a scorpion scorpion, a 1- ox-4-propoxy group, a phenethyl hydrazide, a condensed alcohol, a benzyl ketal, and the like; Base acetophenone, 2,2-dimethoxy-2-phenyl phenyl benzene, 2,2-diethoxy-2-phenyl acetophenone, diacetophenone, 2,2_di Ethyl benzene, 2,2_ = qi-4-phenoxy acetophenone, acetophenone benzene, hydrazine _ hydroxy-cyclohexyl acetonitrile, acetophenone ketal, etc. 2,4,6-trimethylphenylnonyldiphenylphosphine oxide; etc.; 2,4,,-[bis(dioxamethyl)]_ 1,3,5-triazine, 2,4_[double (three gas thiol)]_6_(seven 2-methoxyphenyl)-1,3,5-triazine, 2,4-[bis(trichloromethyl)]_6_(4,2oxanaphthyl)- 1,3,5-triazine, 2,4_[bis(trimethylmethyl)]·6·(piperidinyl)-l,3 5-triazine, 2,4_[bis(tris)]_6_ (4_methoxystyryl)·〗, 3,5_'3, etc., Qin derivative; acridine derivative such as acridine and 9-phenyl acridine, 2, 2, _ double (ortho benzene) -4,^4',5'-tetraphenyl-1,2'-biimidine, 2,2,_bis(o-chlorophenyl)_4,5,4,,5,_ tetraphenyl Base-1, -biimidazole, 2,2,-bis(o-fluorophenyl)_4,5,4,5,-tetraphenyl_U '_ bis-wow, 2,2'-bis (o-methoxy) Phenyl)-4,5,4,5, book phenyl-1 !, 联二♦ sit, 2,2'_bis(p-methoxyphenyl)-4,5,4,,5, -tetraphenyl-U, '- 联二咪唾, 2,4,2,,4,·bis[bis(p-methoxyphenyl)]-5,5,-diphenyl-U,_ 8 201213459 联二味,2,2,-bis(2,4.dimethoxyphenyl)_4,5,4, 5,_ 联^, 2,2'·bis (p-methylthiobenzene) Base)_4,5,4,,5,'. 二二咪唾, bis(2,4,5-triphenyl)_U,_联二咪唾等^-biphenyliodobromide, diphenyl Basic iodine chloride, etc. - a compound of carbon, four desertified carbon, chloroform, moth, etc. (three gas sulfhydryl groups M, 3, 5_ triterpene benzopyrene Such as '% hydrazine, 2-methyl hydrazine, 2 _ ethyl hydrazine, 2 _ butyl butyl broth, 2-pentyl hydrazine and the like steroids; " 2 - amino benzoin, benzene Occasionally, benzoin (10), benzoin isopropyl ether, benzoin phenyl, benzoin isobutylene and other stupid ether compounds; 'oxybenzimidyl}_2,4,4·trimethylpentylphosphine oxide, bis(S ί 基 基)-methylphosphine oxide, bismuth 2,4,6-trimethylbenzoate Phosphine oxidative ageing conversion;. —— 化物 等 Ϊ ) vinegar), diethyl (2, 2, azo isobutyrate 之 之 alkyl (2, 2 - azo isobutyrate), 2 , 2,_azo (isobutyronitrile) (argon, azo (2-methylisobutyronitrile), 2, 2, iron monomethylvaleronitrile) and other azo initiators; cumene hydrogen Peroxide, oxy-peroxy oxime, third-butyl ternary trimethyl ethane, third _ ki & oxime, second butyl peroxy-2-ethylhexanoic acid a third-tert-butyl hydroperoxide such as di-t-butyldiperoxy-dicarboxylate, a third-hexylperoxyethylhexanium, a methylethylg and a peroxide, Ethyl fluorenylcyclohexyl hydrazine peroxide, monthly compound, benzamidine peroxide, benzoquinone peroxide, etc. peroxide system bromophenyl hydrazine, tribromo phenyl phenyl hydrazine, 2, yl group 2 • Dimethylamine-based phthalocyanine] Ding-burning, a-radio-isopred, benzji, thioxanthene, thioxanthones and morphine-propanoid , diphenyl thiophene, 5 red, benzyl diphenyl disulfide, 3,4 - benzhydryl _4, _ methyl diphenyl sulfide 201213459 benzoic acid benzoic acid, benzoquinone Methyl benzoate, benzoyl phthalate, diphenyl oxime, diethyl hydrazine, naphthoquinone, ethyl p-diamyl benzoate, disclosed in European Patent No. 152377 (Aromatic Hydrocarbon Coordination Complex), which is disclosed in Japanese Laid-Open Patent Publication No. SHO63-22111A, and the disclosure of Japanese Patent Publication No. Sho 45-37377, the disclosure of which is incorporated herein by reference. a hexaarylbiimidazole A organism such as a tautomer;

Ciba® Ciba® Ciba® Ciba® Ciba^ Commercially available for example: Ciba® IRGACURE® 819 IRGACURE® 369 > Ciba® IRGACURE® 2959 DAROCURE® 1173 'Ciba® IRGACURE® 184 DAROCURE® TPO, Ciba®IRGACURE® 784, IRGACURE® 2 2022, Ciba® IRGACURE® 2 651, uDa' IRGACURE® 21300, Ciba® DAROCURE® MBF (all of which are manufactured by Cib2 Chemicals and _) and other photoinitiators. These light starts may be mixed or mixed with two or more types, and the optimum addition is _ 2 to 6 wt% of the total amount of the coating composition of the present invention. • In the coating composition of the hairpin, the S agent may be added depending on the purpose of the money. The amount thereof is not particularly limited and may be appropriately adjusted depending on the use. Organic solvent i coating = adjust the dispersibility of each component of the composition t and use it for proper operation. The above-mentioned materials can be used to treat hydrocarbons such as divalent ί4 L aliphatic hydrocarbons such as pentane, hexane, cinnabar, etc.; alicyclic smog such as stupid benzene, methylcyclohexanone, etc.; halogenated hydrocarbons such as sulphur Benzene, two gas, four pits, etc., alcohols such as methanol, ethanol, isopropanol, etc.; _ such as ethylene, esters such as methyl acetate, ethyl acetate, propyl acetate, etc.; ketones: organisms such as ethylene glycol, Propylene glycol, butanediol, hexanediol, diethylene glycol, 5 alcohol mono(tetra), ethylene glycol monobutyl ether, etc.; other such as acetonitrile, biting, ί ί, can be used alone or in combination Use on _. ^External 'coating composition of the present invention' has other additives without damaging the effect of the present invention, such additives may be, for example, antifoaming agents, leveling agents, (3), _, system, surface tension adjustment solution It is customary to use 201213459 in this technique. The substrate of the light-coating composition can be any desired material, such as a plastic substrate which can be a multi-layer or single-layer structure, ΐt,,, machine or metal laminate, organic-inorganic hybrid substrate , a multi-layered inorganic substrate, a multilayer or single-layer metal substrate, a rigid container, and the like. ,,’. The glue can be a general-purpose yoke package, and it is a homopolymer, a polymer blend, and a morgue hybrid. When you want to _ nucleus crystal, silky display, this plastic county plate should have a strong resistant ship, its system can be pasted as, for example, ^ borneene (polynorbomene), aromatic fluorofullerene polyester (_ this c fl_fiillerenep〇 Lyester), polyethersulfone (p〇tyethersulf〇ne), bisphenol-Apolysulfone, p〇lyimide, polyethylene terephthalate (PET), polynaphthalene Polyethylene naphthalate, polyacrylate, polycarbonate (polyfluorene ketone), polyetheretherketone, cyclic 〇lefm copolymer, etc. Cycloolefins, aromatics, polyesters, acrylics, decylamines, polysulfones, epoxies and naphthenes, and other resin materials not mentioned above. '

Φ For example, when the coating composition of the present invention is coated on a plastic substrate such as PET, it has high transparency and hardness protection above 2H in addition to the property of improving water-blocking gas. The ability to retain the flexibility of the substrate at the same time. The experimental methods and detection methods of the present invention will be briefly described below. Coating Method of the Composition of the Present Invention The coating composition of the present invention can be applied to various substrates by a general coating method, for example, using a roll-to-roll process (R〇ll-t〇-R〇ll) process, knife coating The cloth, the bar coating, the shower coating, the spray coating, the curtain coating, and the like are not particularly limited in the present invention. Curing method After coating the coating composition of the present invention on a substrate, in order to improve economic efficiency, it is first 8 (Tt 5 minutes pre-baked' and then passed through a vacuum mercury lamp as an exposure source 11 201213459. The TM_) manufactured by the company is exposed to a machine having a retort and anti-light source wavelength, which is a common commercially available machine. The film length is preferably 20 (M50 nm). (Analytical Test Methods) it # (Water Vapor Transmission Rate, WVTR) (4) 1249 test conditions 'at room temperature and relative accuracy is 100% W-3/33 ^ ^ ^ " ASTM wrong pen hardness test method ( Pencil Hardness) Use a certified pencil and follow the international standard test. First coat the hair on the button and use the above conditions to test the hardness of the film. The angle of 45 〇 angle is 7.5±0.1Ν pressure and lmm/sec, respectively, using different hardness pencils (6B~6H) to engrave on the substrate. In the case where no trace is present, the maximum fault hardness is For the hardness of the film. Male, sexual test (Adhesion test)

The coating composition of the present invention is applied to a substrate and cured under the above conditions to a thickness of 6 μm, and the coating film is etched using a commercially available BaGe knife, 100 squares. grid. Then, it is quickly torn by a special 3 Μ standard tape, and the number of squares remaining on the substrate is calculated, and the percentage is the degree of adhesion. For example, the remaining 80 squares, the degree of adhesion is 8〇%, if the number of residual squares is more, it means that the adhesion is better. The Rollable Test Method flexes 10,000 times without a crack with a radius of curvature of 50 mm, which means that it has flexibility. Transparency Tests are based on the ASTM D1003 test standard and are available in the visible to ultraviolet range from 380 to 780 nm. The invention is further illustrated by the following examples and the accompanying examples, which are intended to illustrate the invention and not to limit the scope of the invention. x [Example 1] Preparation of coating composition: l〇g (10% by weight of the total composition) has the following structural formula (π), which is an aliphatic modified phenolphthalein epoxy acrylic resin Agisyn 3051 (manufactured by Xinlimei Technology Co., Ltd.) and 20g (20% by weight of the total composition) have the following branched structure (1-1) branched acrylic polyacrylate Agisyn 230A2 (manufactured by Xinlimei Technology Co., Ltd.) ), 65 g (65% by weight of the total composition) of a difunctional monomer hexanediol diisopropyl ester (HDDA, hexanediol diaciylate), 5 g (5% by weight of the total composition) of a photoinitiator The ciba® IRGACURE® 184 was uniformly dissolved and dissolved to obtain the coating composition of the present invention. The obtained composition was weighed to 〇5 g, and then diluted with an organic solvent isopropanol to a desired operating viscosity of 15 〇 to i7 Q cps. The obtained coating composition was coated on a PET substrate (ITO/PET substrate) coated with indium tin oxide (ITO) by a wire rod manufactured by Spedalities, (5), wherein PET was a film thickness of 25 μm The axial stretching (md direction) was thin, and the IT film thickness was 50 nm. The substrate coated with the two coatings was prebaked at 8 ° C for 5 minutes, and the coating on the substrate was irradiated by uv 巍i it it amount 200 mj/cm 2 and dried to obtain a film of the film. Thick 19.5 μιηη. The test data of the coating film is summarized in the table Agisyn3051:

x= 1 〜2 ; Rb=H ; 13 201213459

Rc=-OOC-based; Rd= -CH2-based; w=l ; y= 8~9 〇

Agisyn230A2 :

H2c

R3 = human - 3 < n < 10 ° [Example 2] 6.5 g (6.5% by weight of the total composition) of the aliphatically modified phenol A epoxy acrylate resin Agisyn 3051 of the above formula (Silicon Technology Co., Ltd.) Co., Ltd.) and 13.5g (13.5% by weight of the total composition) of the above-mentioned structural formula of branched polyglycolic acid polyurethane Agisyn 230A2, 75g (75% by weight of the total composition) of difunctional monomers The alcohol diacrylate, 5 g (5% by weight of the total composition) of the photoinitiator CibaSRGACURE® 184 was sufficiently stirred and dissolved to obtain the coating composition of the present invention. The amount of the obtained composition d is added with bis hexanediol diacrylate _DA _DA, 2:; ^acrylate) diluted to the desired operating viscosity of 3 〇 4 4 〇 c, coated with a wire rod of RDS = 12 in her single The film thickness is 14 201213459 on the substrate. The coated PET substrate was prebaked by 801 for 5 minutes, and then the coating on the substrate was irradiated with an exposure amount of 500 mj/cm 2 through a UV exposure machine and allowed to dry to obtain a final film thickness of Π·5 μm. The test data of the coating film are summarized in the table '^ [Example 3] 20g (l0.3 gh / ί); the above structural formula of the aliphatic modified benzene age a epoxy acrylic resin Agisyn 3051 (Xin Limei Technology) Co., Ltd.) < with 74g (38.14% by weight) of the above-mentioned structural formula of branched polyacrylic acid ester into each willow 230A2, 94g (48.45% by weight) polyglycosyl monomer hdda, 2g (1 〇 3 Heavy denier%) Ciba®IRGACURE® 819,4g (2·06 weight

Ciba®IRGACURE®1173 was thoroughly stirred and dissolved, and finally added 0.:5Phr (0.97g) organic spheroidal Nissan Chemical ACR_ST-230 (where Nissan Chemical ACR-ST-230 is 70% tetrahydrofurfuryl ester (thi^, Tetmhydrofimiiyl alcohol), 30% Si〇2), was thoroughly stirred to obtain a coating composition. Take the coating composition 〇.5g, and then add hdda to dilute to the desired operating viscosity of 100~llOcps. The obtained coating composition was coated on a PET substrate with a bar of milk 8=12 to form a coating layer, and the coating on the substrate was irradiated with an exposure amount of 1 〇〇〇mj/cm 2 through a υγ exposure machine and allowed to be coated. Dry hardening to obtain the final film thickness as work. The test data for this film is summarized in Table 1. A comparison was also made between the ruthenium substrate and the Ιτ〇 τ base material to which the coating composition of the present invention was not applied, and the results are also shown in Table i. Table 1

From the above formula '〇 stands for the flex test, x stands for the water that does not pass the flex test substrate'. It is known that the coating of the coated composition of the present invention has a significantly reduced milk penetration rate with good moisture resistance. Effect, and

15 201213459 Good penetration (ie good transparency) and good flexibility. [Simplified illustration] ' [Main component symbol description] 16

Claims (1)

201213459 VII. Patent Application Range: 1. A photocurable coating composition having moisture barrier properties, comprising: (A) 0.1 to 50% by weight of a branched urethane acrylate having the following formula 1 (I) Wherein R represents deuterium or CH3, R1 represents a tetravalent aliphatic group, R2 represents a divalent aliphatic group or an alicyclic group, and R3 represents a monovalent aliphatic group, a vinyl group, a propylene group or a mercaptopropenyl group, and n^ 3; % (9) 0.1 to 40% by weight of the aliphatic modified benzene-based acrylic resin of the following general formula (8): long gas (wherein x = an integer of 10 to 10) Rb represents a fluorene or fluorenyl group; Re represents a Cw alkyl group, -SiOSi. group, _C0_ group, -ΝΉ-yl group, -NHC0- group, -C6H4-yl group R< j represents (^ an alkyl group or a c26 secondary alkenyl group, y = an integer of 1 to 10 and w = 1 or 2; and (C) 30 to 75% by weight of a mono- or polyfunctional acrylic monomer; D) 1 to 20% by weight of a photopolymerization initiator. 17 201213459 Fan Qing, a fine b coating composition, wherein the composition (4) to 64 values. 4 ratio / 11 weight t of light curing coating The composition, wherein the component (4) I 2 = ^ fine-tack, the photocurable coating composition of the first item of the composition, wherein the component (C) phenylacetic acid monomer is converted into a poly 6 weight by the measurement of gpc An acrylic monomer having a thousand-thick molecular weight of less than or equal to a surface. The photocurable coating composition of the first item, wherein the _tit-acrylic monomer is converted to a poly(7) molecular weight in terms of GPC. Acid-based monomer. For example, the photocurable coating composition of claim 6 of the patent rhyme, wherein the composition = from acrylic acid 2- to base ethane, methacrylic acid 2 _ ethyl vinegar, acrylic acid Ester, acrylic 2 points Ethoxyethoxy)acetic acid, tripropylene glycol diacrylate-oxime, dipropanol diacrylate acrylate, polyethylene glycol (2(8)) diacrylate, trihydroxy T-propylpropane tripropylene, pentaerythritol triacrylate g is one or more of the group consisting of dipentaerythritol. ’, 201213459 IV. Designation of Representative Representatives (1) The representative representative of the case is: ( ). (2) A brief description of the symbol of the representative figure: 5. If there is a chemical formula in this case, please disclose the chemical formula that best shows the characteristics of the invention: OH OH 〇 w y (Π) 2