KR102581152B1 - Coating composition with high refractive, high bending and low viscous properties for foldable smartphones and window member comprising the coating layer coated thereby - Google Patents
Coating composition with high refractive, high bending and low viscous properties for foldable smartphones and window member comprising the coating layer coated thereby Download PDFInfo
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- KR102581152B1 KR102581152B1 KR1020200187362A KR20200187362A KR102581152B1 KR 102581152 B1 KR102581152 B1 KR 102581152B1 KR 1020200187362 A KR1020200187362 A KR 1020200187362A KR 20200187362 A KR20200187362 A KR 20200187362A KR 102581152 B1 KR102581152 B1 KR 102581152B1
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- KR
- South Korea
- Prior art keywords
- coating composition
- low viscosity
- acrylate
- properties
- bending
- Prior art date
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- 238000005452 bending Methods 0.000 title claims abstract description 102
- 239000008199 coating composition Substances 0.000 title claims abstract description 100
- 239000011247 coating layer Substances 0.000 title claims description 17
- 239000000178 monomer Substances 0.000 claims abstract description 74
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims abstract description 51
- 239000000463 material Substances 0.000 claims abstract description 48
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims abstract description 29
- 229920001577 copolymer Polymers 0.000 claims abstract description 16
- -1 poly(oxy(methyl-1,2-ethanediyl) Chemical group 0.000 claims description 39
- NIHNNTQXNPWCJQ-UHFFFAOYSA-N fluorene Chemical compound C1=CC=C2CC3=CC=CC=C3C2=C1 NIHNNTQXNPWCJQ-UHFFFAOYSA-N 0.000 claims description 28
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 19
- 238000000016 photochemical curing Methods 0.000 claims description 19
- 239000003999 initiator Substances 0.000 claims description 18
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 15
- 125000004386 diacrylate group Chemical group 0.000 claims description 15
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 14
- 239000003795 chemical substances by application Substances 0.000 claims description 14
- 229920000642 polymer Polymers 0.000 claims description 14
- AOJOEFVRHOZDFN-UHFFFAOYSA-N benzyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCC1=CC=CC=C1 AOJOEFVRHOZDFN-UHFFFAOYSA-N 0.000 claims description 13
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 11
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 claims description 11
- URQQDYIVGXOEDA-UHFFFAOYSA-N 2-(2-ethenoxyethoxy)ethyl prop-2-enoate Chemical compound C=COCCOCCOC(=O)C=C URQQDYIVGXOEDA-UHFFFAOYSA-N 0.000 claims description 9
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N phenylbenzene Natural products C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 claims description 9
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 claims description 8
- 229920001451 polypropylene glycol Polymers 0.000 claims description 8
- 229920001296 polysiloxane Polymers 0.000 claims description 8
- ZMZHRHTZJDBLEX-UHFFFAOYSA-N (2-phenylphenyl) prop-2-enoate Chemical compound C=CC(=O)OC1=CC=CC=C1C1=CC=CC=C1 ZMZHRHTZJDBLEX-UHFFFAOYSA-N 0.000 claims description 6
- 235000010290 biphenyl Nutrition 0.000 claims description 6
- VFHVQBAGLAREND-UHFFFAOYSA-N diphenylphosphoryl-(2,4,6-trimethylphenyl)methanone Chemical compound CC1=CC(C)=CC(C)=C1C(=O)P(=O)(C=1C=CC=CC=1)C1=CC=CC=C1 VFHVQBAGLAREND-UHFFFAOYSA-N 0.000 claims description 6
- ZNOCGWVLWPVKAO-UHFFFAOYSA-N trimethoxy(phenyl)silane Chemical compound CO[Si](OC)(OC)C1=CC=CC=C1 ZNOCGWVLWPVKAO-UHFFFAOYSA-N 0.000 claims description 6
- XMLYCEVDHLAQEL-UHFFFAOYSA-N 2-hydroxy-2-methyl-1-phenylpropan-1-one Chemical group CC(C)(O)C(=O)C1=CC=CC=C1 XMLYCEVDHLAQEL-UHFFFAOYSA-N 0.000 claims description 5
- QOXOZONBQWIKDA-UHFFFAOYSA-N 3-hydroxypropyl Chemical group [CH2]CCO QOXOZONBQWIKDA-UHFFFAOYSA-N 0.000 claims description 5
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 5
- 239000004305 biphenyl Substances 0.000 claims description 5
- 150000002170 ethers Chemical class 0.000 claims description 5
- 229910000077 silane Inorganic materials 0.000 claims description 5
- XNWFRZJHXBZDAG-UHFFFAOYSA-N 2-METHOXYETHANOL Chemical compound COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 claims description 4
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 claims description 4
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 claims description 4
- QIWKUEJZZCOPFV-UHFFFAOYSA-N phenyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OC1=CC=CC=C1 QIWKUEJZZCOPFV-UHFFFAOYSA-N 0.000 claims description 4
- ZPQAUEDTKNBRNG-UHFFFAOYSA-N 2-methylprop-2-enoylsilicon Chemical compound CC(=C)C([Si])=O ZPQAUEDTKNBRNG-UHFFFAOYSA-N 0.000 claims description 3
- 229930185605 Bisphenol Natural products 0.000 claims description 3
- 239000005046 Chlorosilane Substances 0.000 claims description 3
- IKODBJXODOKUPU-UHFFFAOYSA-N OC(C(CC1=CC(OC2=CC=CC=C2)=CC=C1)=CC1=CC=CC2=CC=CC=C12)=O Chemical compound OC(C(CC1=CC(OC2=CC=CC=C2)=CC=C1)=CC1=CC=CC2=CC=CC=C12)=O IKODBJXODOKUPU-UHFFFAOYSA-N 0.000 claims description 3
- 239000004698 Polyethylene Substances 0.000 claims description 3
- GUCYFKSBFREPBC-UHFFFAOYSA-N [phenyl-(2,4,6-trimethylbenzoyl)phosphoryl]-(2,4,6-trimethylphenyl)methanone Chemical compound CC1=CC(C)=CC(C)=C1C(=O)P(=O)(C=1C=CC=CC=1)C(=O)C1=C(C)C=C(C)C=C1C GUCYFKSBFREPBC-UHFFFAOYSA-N 0.000 claims description 3
- 150000001343 alkyl silanes Chemical class 0.000 claims description 3
- GCTPMLUUWLLESL-UHFFFAOYSA-N benzyl prop-2-enoate Chemical compound C=CC(=O)OCC1=CC=CC=C1 GCTPMLUUWLLESL-UHFFFAOYSA-N 0.000 claims description 3
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 claims description 3
- GTPDFCLBTFKHNH-UHFFFAOYSA-N chloro(phenyl)silicon Chemical compound Cl[Si]C1=CC=CC=C1 GTPDFCLBTFKHNH-UHFFFAOYSA-N 0.000 claims description 3
- KOPOQZFJUQMUML-UHFFFAOYSA-N chlorosilane Chemical compound Cl[SiH3] KOPOQZFJUQMUML-UHFFFAOYSA-N 0.000 claims description 3
- GNEPOXWQWFSSOU-UHFFFAOYSA-N dichloro-methyl-phenylsilane Chemical compound C[Si](Cl)(Cl)C1=CC=CC=C1 GNEPOXWQWFSSOU-UHFFFAOYSA-N 0.000 claims description 3
- ZZNQQQWFKKTOSD-UHFFFAOYSA-N diethoxy(diphenyl)silane Chemical compound C=1C=CC=CC=1[Si](OCC)(OCC)C1=CC=CC=C1 ZZNQQQWFKKTOSD-UHFFFAOYSA-N 0.000 claims description 3
- AHUXYBVKTIBBJW-UHFFFAOYSA-N dimethoxy(diphenyl)silane Chemical compound C=1C=CC=CC=1[Si](OC)(OC)C1=CC=CC=C1 AHUXYBVKTIBBJW-UHFFFAOYSA-N 0.000 claims description 3
- CVQVSVBUMVSJES-UHFFFAOYSA-N dimethoxy-methyl-phenylsilane Chemical compound CO[Si](C)(OC)C1=CC=CC=C1 CVQVSVBUMVSJES-UHFFFAOYSA-N 0.000 claims description 3
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical group [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 claims description 3
- SMRBDSVXDFRMNH-FYWRMAATSA-N ethyl (E)-3-hydroxy-2-[(3-phenoxyphenyl)methyl]prop-2-enoate Chemical compound CCOC(=O)C(=C\O)\CC1=CC=CC(OC=2C=CC=CC=2)=C1 SMRBDSVXDFRMNH-FYWRMAATSA-N 0.000 claims description 3
- YQDVBKMIBJKWOA-UHFFFAOYSA-N hydron;trimethoxy(propyl)silane;chloride Chemical compound Cl.CCC[Si](OC)(OC)OC YQDVBKMIBJKWOA-UHFFFAOYSA-N 0.000 claims description 3
- 239000005054 phenyltrichlorosilane Substances 0.000 claims description 3
- 229920000555 poly(dimethylsilanediyl) polymer Polymers 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- ORVMIVQULIKXCP-UHFFFAOYSA-N trichloro(phenyl)silane Chemical compound Cl[Si](Cl)(Cl)C1=CC=CC=C1 ORVMIVQULIKXCP-UHFFFAOYSA-N 0.000 claims description 3
- OJAJJFGMKAZGRZ-UHFFFAOYSA-N trimethyl(phenoxy)silane Chemical compound C[Si](C)(C)OC1=CC=CC=C1 OJAJJFGMKAZGRZ-UHFFFAOYSA-N 0.000 claims description 3
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical group C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 claims description 2
- KQWGXHWJMSMDJJ-UHFFFAOYSA-N cyclohexyl isocyanate Chemical compound O=C=NC1CCCCC1 KQWGXHWJMSMDJJ-UHFFFAOYSA-N 0.000 claims description 2
- 239000012948 isocyanate Substances 0.000 claims description 2
- WRAQQYDMVSCOTE-UHFFFAOYSA-N phenyl prop-2-enoate Chemical compound C=CC(=O)OC1=CC=CC=C1 WRAQQYDMVSCOTE-UHFFFAOYSA-N 0.000 claims description 2
- PARWUHTVGZSQPD-UHFFFAOYSA-N phenylsilane Chemical compound [SiH3]C1=CC=CC=C1 PARWUHTVGZSQPD-UHFFFAOYSA-N 0.000 claims description 2
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 claims 2
- QUEWJUQWKGAHON-UHFFFAOYSA-N (2-phenylphenyl) 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OC1=CC=CC=C1C1=CC=CC=C1 QUEWJUQWKGAHON-UHFFFAOYSA-N 0.000 claims 1
- GLCCBCMDZUKNND-UHFFFAOYSA-N C(C=C)(=O)OCCOC1=CC=C(C=C1)C1(C2=CC=CC=C2C=2C=CC=CC12)C1=CC=C(C=C1)OCCOC(C=C)=O.C(C=C)(=O)OCCOC1=CC=C(C=C1)C1(C2=CC=CC=C2C=2C=CC=CC12)C1=CC=C(C=C1)OCCOC(C=C)=O Chemical group C(C=C)(=O)OCCOC1=CC=C(C=C1)C1(C2=CC=CC=C2C=2C=CC=CC12)C1=CC=C(C=C1)OCCOC(C=C)=O.C(C=C)(=O)OCCOC1=CC=C(C=C1)C1(C2=CC=CC=C2C=2C=CC=CC12)C1=CC=C(C=C1)OCCOC(C=C)=O GLCCBCMDZUKNND-UHFFFAOYSA-N 0.000 claims 1
- GSJNBCZKEUYYLK-UHFFFAOYSA-N [phenoxy(phenyl)methyl] prop-2-enoate Chemical compound C=1C=CC=CC=1C(OC(=O)C=C)OC1=CC=CC=C1 GSJNBCZKEUYYLK-UHFFFAOYSA-N 0.000 claims 1
- 125000004188 dichlorophenyl group Chemical group 0.000 claims 1
- MNFGEHQPOWJJBH-UHFFFAOYSA-N diethoxy-methyl-phenylsilane Chemical compound CCO[Si](C)(OCC)C1=CC=CC=C1 MNFGEHQPOWJJBH-UHFFFAOYSA-N 0.000 claims 1
- 150000002734 metacrylic acid derivatives Chemical class 0.000 claims 1
- 239000001294 propane Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 22
- 230000008569 process Effects 0.000 abstract description 6
- KSXJRXNHRYSLLC-UHFFFAOYSA-N 9H-fluorene prop-2-enoic acid Chemical compound OC(=O)C=C.OC(=O)C=C.C1=CC=C2CC3=CC=CC=C3C2=C1 KSXJRXNHRYSLLC-UHFFFAOYSA-N 0.000 abstract description 4
- 230000000052 comparative effect Effects 0.000 description 33
- 238000000576 coating method Methods 0.000 description 19
- 230000003287 optical effect Effects 0.000 description 19
- 238000002834 transmittance Methods 0.000 description 19
- 239000011248 coating agent Substances 0.000 description 15
- KORSJDCBLAPZEQ-UHFFFAOYSA-N dicyclohexylmethane-4,4'-diisocyanate Chemical group C1CC(N=C=O)CCC1CC1CCC(N=C=O)CC1 KORSJDCBLAPZEQ-UHFFFAOYSA-N 0.000 description 14
- 239000000203 mixture Substances 0.000 description 11
- 238000005259 measurement Methods 0.000 description 7
- YCPMSWJCWKUXRH-UHFFFAOYSA-N 2-[4-[9-[4-(2-prop-2-enoyloxyethoxy)phenyl]fluoren-9-yl]phenoxy]ethyl prop-2-enoate Chemical compound C1=CC(OCCOC(=O)C=C)=CC=C1C1(C=2C=CC(OCCOC(=O)C=C)=CC=2)C2=CC=CC=C2C2=CC=CC=C21 YCPMSWJCWKUXRH-UHFFFAOYSA-N 0.000 description 6
- 229920001721 polyimide Polymers 0.000 description 6
- 229920002799 BoPET Polymers 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- YIWGJFPJRAEKMK-UHFFFAOYSA-N 1-(2H-benzotriazol-5-yl)-3-methyl-8-[2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carbonyl]-1,3,8-triazaspiro[4.5]decane-2,4-dione Chemical compound CN1C(=O)N(c2ccc3n[nH]nc3c2)C2(CCN(CC2)C(=O)c2cnc(NCc3cccc(OC(F)(F)F)c3)nc2)C1=O YIWGJFPJRAEKMK-UHFFFAOYSA-N 0.000 description 4
- NJMYQRVWBCSLEU-UHFFFAOYSA-N 4-hydroxy-2-methylidenebutanoic acid Chemical compound OCCC(=C)C(O)=O NJMYQRVWBCSLEU-UHFFFAOYSA-N 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000001723 curing Methods 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- OBSKPJKNWVTXJQ-UHFFFAOYSA-N (2-nitrophenyl) 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OC1=CC=CC=C1[N+]([O-])=O OBSKPJKNWVTXJQ-UHFFFAOYSA-N 0.000 description 2
- ASULPTPKYZUPFI-UHFFFAOYSA-N (2-nitrophenyl) prop-2-enoate Chemical compound [O-][N+](=O)C1=CC=CC=C1OC(=O)C=C ASULPTPKYZUPFI-UHFFFAOYSA-N 0.000 description 2
- ARXJGSRGQADJSQ-UHFFFAOYSA-N 1-methoxypropan-2-ol Chemical compound COCC(C)O ARXJGSRGQADJSQ-UHFFFAOYSA-N 0.000 description 2
- VAZQKPWSBFZARZ-UHFFFAOYSA-N 2-(2-phenylphenoxy)ethyl prop-2-enoate Chemical compound C=CC(=O)OCCOC1=CC=CC=C1C1=CC=CC=C1 VAZQKPWSBFZARZ-UHFFFAOYSA-N 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- NIPNSKYNPDTRPC-UHFFFAOYSA-N N-[2-oxo-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 NIPNSKYNPDTRPC-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- VIRVTHOOZABTPR-UHFFFAOYSA-N dichloro(phenyl)silane Chemical compound Cl[SiH](Cl)C1=CC=CC=C1 VIRVTHOOZABTPR-UHFFFAOYSA-N 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- DNIAPMSPPWPWGF-UHFFFAOYSA-N monopropylene glycol Natural products CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000002985 plastic film Substances 0.000 description 2
- SBYHFKPVCBCYGV-UHFFFAOYSA-N quinuclidine Chemical compound C1CC2CCN1CC2 SBYHFKPVCBCYGV-UHFFFAOYSA-N 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- 230000003678 scratch resistant effect Effects 0.000 description 2
- MDDUHVRJJAFRAU-YZNNVMRBSA-N tert-butyl-[(1r,3s,5z)-3-[tert-butyl(dimethyl)silyl]oxy-5-(2-diphenylphosphorylethylidene)-4-methylidenecyclohexyl]oxy-dimethylsilane Chemical compound C1[C@@H](O[Si](C)(C)C(C)(C)C)C[C@H](O[Si](C)(C)C(C)(C)C)C(=C)\C1=C/CP(=O)(C=1C=CC=CC=1)C1=CC=CC=C1 MDDUHVRJJAFRAU-YZNNVMRBSA-N 0.000 description 2
- HQYALQRYBUJWDH-UHFFFAOYSA-N trimethoxy(propyl)silane Chemical compound CCC[Si](OC)(OC)OC HQYALQRYBUJWDH-UHFFFAOYSA-N 0.000 description 2
- 230000037303 wrinkles Effects 0.000 description 2
- XVZXOLOFWKSDSR-UHFFFAOYSA-N Cc1cc(C)c([C]=O)c(C)c1 Chemical group Cc1cc(C)c([C]=O)c(C)c1 XVZXOLOFWKSDSR-UHFFFAOYSA-N 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 125000001033 ether group Chemical group 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 150000003949 imides Chemical class 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910001507 metal halide Inorganic materials 0.000 description 1
- 150000005309 metal halides Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000012044 organic layer Substances 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000001029 thermal curing Methods 0.000 description 1
- 239000005341 toughened glass Substances 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/44—Polymerisation in the presence of compounding ingredients, e.g. plasticisers, dyestuffs, fillers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/46—Polymerisation initiated by wave energy or particle radiation
- C08F2/48—Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light
- C08F2/50—Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light with sensitising agents
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/04—Acids; Metal salts or ammonium salts thereof
- C08F220/06—Acrylic acid; Methacrylic acid; Metal salts or ammonium salts thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F222/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides, or nitriles thereof
- C08F222/10—Esters
- C08F222/1006—Esters of polyhydric alcohols or polyhydric phenols
- C08F222/102—Esters of polyhydric alcohols or polyhydric phenols of dialcohols, e.g. ethylene glycol di(meth)acrylate or 1,4-butanediol dimethacrylate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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Abstract
본 발명인 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물은 고굴절 특성 물질로 지르코니아 아크릴 모노머 졸과 플루오렌계 디아크릴레이트를 포함하며, 고굴곡 특성 물질로 Urethane-acrylic ester co-polymer를 포함하며, 저점도 특성 물질로 아크릴레이트 모노머를 포함하여 구성되어, 폴더블 스마트폰의 투명 필름 상부 표면에 코팅조성물을 코팅하여 투명 필름의 굴절율을 향상시킴과 동시에 우수한 굴곡 특성을 가져 내구성이 뛰어나고, 저점도 특성을 가져 폴더블 스마트폰의 투명 필름 상부 표면을 잉크젯 방식으로 코팅할 수 있어 공정효율성이 우수한 효과를 가진다.The present invention's coating composition with high refractive index, high bending and low viscosity properties for a foldable smartphone contains zirconia acrylic monomer sol and fluorene diacrylate as a high refractive property material, and urethane-acrylic ester co-polymer as a high bending property material. It is composed of a low-viscosity material containing acrylate monomer, and the coating composition is coated on the upper surface of the transparent film of the foldable smartphone to improve the refractive index of the transparent film and at the same time have excellent bending characteristics, making it excellent in durability and low viscosity. It has excellent process efficiency as it can coat the upper surface of the transparent film of a foldable smartphone using an inkjet method.
Description
본 발명은 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물 및 이에 의해 코팅된 코팅층을 포함하는 윈도우부재에 관한 것으로서, 보다 상세하게는 폴더블 스마트폰의 투명 필름상에 고굴절, 고굴곡 및 저점도 특성의 코팅조성물을 코팅하여 굴절율을 향상시켜 휘도 및 시인성을 포함하는 광학특성을 향상시키고 밴딩성 및 굴곡성을 포함하는 유연성을 향상시키며, 저점도를 유지하여 잉크젯 코팅방식으로 코팅을 진행할 수 있는 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물 및 이에 의해 코팅된 코팅층을 포함하는 윈도우부재에 관한 것이다.The present invention relates to a coating composition with high refraction, high bending and low viscosity characteristics for a foldable smartphone and a window member including a coating layer coated thereby. More specifically, it relates to a window member containing high refractive index, high bending and low viscosity characteristics on a transparent film of a foldable smartphone. By coating a coating composition with low viscosity characteristics, the refractive index is improved, improving optical properties including brightness and visibility, improving flexibility including bending and flexibility, and maintaining low viscosity so that coating can be carried out using the inkjet coating method. It relates to a coating composition with high refractive index, high bending and low viscosity properties for a foldable smartphone, and a window member including a coating layer coated thereby.
다양한 정보를 화면으로 구현해 주는 표시장치는 정보 통신 시대의 핵심 기술로 더 얇고 더 가벼우며, 휴대가 가능하면서도 고성능의 방향으로 발전하고 있다. 이에 종래 브라운관의 단점인 무게와 부피를 줄일 수 있는 평판표시장치가 개발되었고, 평판표시장치로는 액정표시장치(LCD, liquid crystal display), 유기발광표시장치(OLED, organic light-emitting display), 전기영동표시장치(EPD, electrophoretic display) 등이 있고, 최근에는 유기발광층의 발광량을 제어하여 영상을 표시하는 유기발광표시장치(OLED, organic light-emitting display)가 각광을 받고 있다. Display devices that display various information on a screen are a core technology of the information and communication era and are developing to be thinner, lighter, more portable, and more high-performance. Accordingly, a flat panel display device was developed that can reduce the weight and volume, which are disadvantages of the conventional cathode ray tube. Flat display devices include liquid crystal display (LCD), organic light-emitting display (OLED), There are electrophoretic displays (EPD), etc., and recently, organic light-emitting displays (OLED), which display images by controlling the amount of light emitted from the organic light-emitting layer, have been in the spotlight.
액정표시장치(LCD, liquid crystal display) 또는 유기발광표시장치(OLED, organic light-emitting display)가 적용된 스마트폰, 내비게이션, 디지털카메라, 전자책, 휴대용 게임기 또는 각종 단말기와 같은 다양한 모바일 전자기기들이 사용되고 있다. 이러한 모바일 전자기기에 사용되는 통상의 표시장치에는 표시패널의 전방에 사용자가 표시부를 볼 수 있도록 투명하게 구성된 커버 윈도우부재가 구비될 수 있다. 이러한 윈도우부재는 표시장치의 가장 외부에 위치하는 구성이므로 휘도 및 시인성이 우수한 광학적 특성을 가져야 한다. A variety of mobile electronic devices such as smartphones, navigation systems, digital cameras, e-books, portable game consoles, or various terminals equipped with liquid crystal displays (LCDs) or organic light-emitting displays (OLEDs) are used. there is. A typical display device used in such mobile electronic devices may be provided with a transparent cover window member in front of the display panel so that the user can view the display unit. Since this window member is located at the outermost part of the display device, it must have optical properties with excellent brightness and visibility.
유기발광표시장치(OLED, organic light-emitting diode)는 다수의 화소들이 매트릭스 형태로 배열되어 화상을 표시하게 된다. 여기서, 각 화소는 발광 소자와, 그 발광 소자를 독립적으로 구동하는 다수의 트랜지스터로 이루어진 화소 구동 회로를 구비한다. 이와 같은 유기발광표시소자(OLED, organic light-emitting diode)는 자발광의 유기발광소자를 이용하므로, 별도의 광원을 요구하지 않으며, 초박형 표시장치의 구현이 가능하므로, 근래에는 유기발광표시소자(OLED, organic light-emitting diode)를 이용하고, 발광셀 내부에 터치 전극 어레이를 포함하는 인-셀 터치 구조(In-Cell Touch)의 폴더블 표시장치, 즉 폴더블 스마트폰에 관한 연구가 활발히 이루어지고 있다.Organic light-emitting diodes (OLEDs) display images by arranging multiple pixels in a matrix form. Here, each pixel includes a light-emitting element and a pixel driving circuit consisting of a plurality of transistors that independently drive the light-emitting element. Such organic light-emitting display devices (OLEDs, organic light-emitting diodes) use self-emitting organic light-emitting devices, do not require a separate light source, and enable the implementation of ultra-thin display devices, so in recent years, organic light-emitting displays (OLEDs) have been used. Research is being actively conducted on foldable smartphones, which are foldable display devices with an in-cell touch structure that uses OLED (organic light-emitting diode) and includes a touch electrode array inside the light-emitting cell. I'm losing.
이러한 폴더블스마트폰은 표시패널을 포함한 스마트폰 자체가 폴딩되는 구조를 가지며, 따라서 폴딩이 가능한 커버 윈도우부재가 사용된다. 이와 같이 폴딩이 가능한 커버 윈도우부재를 형성하기 위하여, 종래의 강화글라스로 된 유리기판 대신에 고굴곡성을 가지는 CPI(coloreless polyimide) 필름을 이용하여 윈도우부재를 제작하는 것이 타당하다. 다만 이같은 CPI(coloreless polyimide) 필름을 이용한 커버 윈도우부재는 굴절율이 낮아 휘도 및 시인성이 떨어지고 광학적 특성이 미흡한 문제가 있다. These foldable smartphones have a structure in which the smartphone itself, including the display panel, is folded, and therefore a cover window member that can be folded is used. In order to form a cover window member that can be folded in this way, it is reasonable to manufacture the window member using a colorless polyimide (CPI) film with high flexibility instead of a glass substrate made of conventional tempered glass. However, cover window members using such CPI (colorless polyimide) films have problems with low refractive index, low brightness and visibility, and poor optical properties.
즉, 폴더블 스마트폰의 커버 윈도우부재에 고굴곡성을 가지는 CPI(coloreless polyimide) 필름이 많이 사용되고 있는데, 고굴곡성을 가지는 CPI(coloreless polyimide) 필름은 굴절율이 낮아 휘도 및 시인성이 떨어지고 광학적 특성이 미흡한 문제점을 가지고 있으므로, 고굴곡 특성은 유지하면서 투명 필름의 굴절율을 높여 우수한 광학적 특성을 가질 수 있도록 투명 필름의 표면에 코팅되는 폴더블 스마트폰용 고굴절 및 고굴곡 특성 코팅조성물의 필요성이 커지고 있다. 나아가, 폴더블 스마트폰용 고굴절 및 고굴곡 특성 코팅조성물의 점도가 높으면 코팅 공정의 진행에 문제가 발생할 수 있고, 특히, 잉크젯 코팅방식을 이용할 수 없는 문제가 존재한다. 따라서, 고굴절 특성과 고굴곡 특성은 유지하면서 낮은 점도를 가질 수 있는 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물의 필요성이 커지고 있다.In other words, CPI (coloreless polyimide) film with high flexibility is widely used in the cover window member of foldable smartphones. However, CPI (coloreless polyimide) film with high flexibility has a low refractive index, resulting in low brightness and visibility, and poor optical properties. Therefore, the need for a coating composition with high refractive and high bending properties for a foldable smartphone that is coated on the surface of a transparent film to have excellent optical properties by increasing the refractive index of the transparent film while maintaining the high bending properties is increasing. Furthermore, if the viscosity of the high-refractive and high-flexibility coating composition for a foldable smartphone is high, problems may occur in the progress of the coating process, and in particular, there is a problem that the inkjet coating method cannot be used. Accordingly, the need for a coating composition with high refractive index, high bendability, and low viscosity properties for a foldable smartphone that can have low viscosity while maintaining high refractive properties and high bending properties is increasing.
즉, 폴더블 스마트폰의 커버 윈도우부재에 적용되는 가장 중요한 물성은 광학적 특성과 고굴곡 특성인데 종래의 폴더블 스마트폰의 커버 윈도우부재는 광학적 특성 또는 고굴곡 특성 중 어느 하나만을 만족하는 것이 일반적이다. 이에 본 발명의 발명자는 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물을 개발하여 고굴절 특성을 가지면서 고굴곡 특성을 유지하여, 우수한 광학적 특성 및 고굴곡 특성을 가질 수 있도록 하였고, 저점도 특성을 가져 잉크젯 코팅방식을 사용할 수 있도록 하였다. In other words, the most important properties applied to the cover window member of a foldable smartphone are optical properties and high bending properties, and the cover window member of a conventional foldable smartphone generally satisfies only one of the optical properties or the high bending properties. . Accordingly, the inventor of the present invention developed a coating composition with high refraction, high bending, and low viscosity properties for a foldable smartphone, and maintained the high bending properties while maintaining high refractive properties, so that it can have excellent optical properties and high bending properties, and has low viscosity. It has characteristics that allow the use of inkjet coating method.
대한민국 공개특허공보 10-2016-0106889호의 디스플레이용 투명 필름 및 그 제조방법에서는 무기물 배리어층을 사전에 안티 블로킹 처리된 투명 PET 필름 부착에 의한 구성으로 보호될 수 있게 한 것에 의해, 무기물 배리어층에 손상(Damage)을 안 주면서도, 블로킹 방지와 아울러 외부로부터의 긁힘을 방지하는 내긁힘 특성을 발휘하게 하고, 또 내긁힘 특성에 의한 보호지 추가 설치작업의 불필요로 인한 제조 원가의 절감을 달성되게 하며, 또한 접착제에 의한 투명 PET 필름의 무기물 배리어층에 대한 부착은 접착제가 열 안정성을 부여하는 역할을 하여 내열성을 갖게 함은 물론 필름 움 현상을 없게 하는 이점을 부여하고, 또한 가운데 접착제를 중심으로 하여 양측에 투명 PET 필름의 설치로 PET 필름 위에 기존과 같이 유기막층이 설치된 구조에 비하여 컬(Curl)발생을 적게 할 수 있게 하는 디스플레이용 투명 플라스틱 필름을 개시하고 있다. 그러나 상기 디스플레이용 투명 플라스틱 필름은 투명 PET 필름에 관한 것으로 폴더블 스마트폰에 주로 사용되는 CPI(coloreless polyimide) 필름에 직접 적용할 수 없는 문제가 있다. 또한 이와 같은 종래의 기술에서는 CPI(coloreless polyimide) 필름의 고굴곡성을 유지하면서 고굴절 특성과 저점도 특성을 모두 구현하려는 시도 자체가 거의 없는 실정이다.In the transparent film for display and its manufacturing method disclosed in Korean Patent Publication No. 10-2016-0106889, the inorganic barrier layer can be protected by attaching a transparent PET film that has been treated with anti-blocking in advance, thereby preventing damage to the inorganic barrier layer. While not causing damage, it prevents blocking and exhibits scratch-resistant properties that prevent scratches from the outside. Additionally, it reduces manufacturing costs by eliminating the need for additional installation of protective paper due to the scratch-resistant properties. Attachment of the transparent PET film to the inorganic barrier layer by the adhesive provides the advantage of not only providing heat resistance as the adhesive provides thermal stability but also preventing the film from shrinking, and also has adhesives on both sides centered on the adhesive in the middle. A transparent plastic film for displays is being disclosed that can reduce the occurrence of curl by installing a transparent PET film compared to the existing structure in which an organic layer is installed on the PET film. However, the transparent plastic film for displays is a transparent PET film and has a problem in that it cannot be directly applied to CPI (colorless polyimide) film, which is mainly used in foldable smartphones. In addition, in such conventional technology, there are almost no attempts to implement both high refractive index and low viscosity characteristics while maintaining the high flexibility of the CPI (colorless polyimide) film.
본 발명은 위와 같은 문제점을 해결하기 위하여 안출된 것으로, 본 발명의 목적은 폴더블 스마트폰의 투명 필름 상부 표면에 코팅조성물을 코팅하여 투명 필름의 굴곡 특성을 향상시킨 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물을 제공하는 것이다.The present invention was created to solve the above problems, and the purpose of the present invention is to improve the bending characteristics of the transparent film by coating a coating composition on the upper surface of the transparent film of the foldable smartphone. And to provide a coating composition with low viscosity properties.
본 발명의 또 다른 목적은 폴더블 스마트폰의 투명 필름 상부 표면에 코팅조성물을 코팅하여 투명 필름의 굴곡 특성을 향상시킴과 동시에 고굴절율을 가지도록 하여 광학적 특성을 향상시킨 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물을 제공하는 것이다.Another object of the present invention is to improve the bending characteristics of the transparent film by coating the upper surface of the transparent film of the foldable smartphone with a coating composition and at the same time improve the optical properties by having a high refractive index. The aim is to provide a coating composition with bending and low viscosity properties.
본 발명의 또 다른 목적은 코팅조성물이 저점도 특성을 가져, 폴더블 스마트폰의 투명 필름 상부 표면을 잉크젯 방식으로 코팅할 수 있고 공정효율성이 우수한 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물을 제공하는 것이다.Another object of the present invention is that the coating composition has low viscosity characteristics, so that the upper surface of the transparent film of the foldable smartphone can be coated using an inkjet method, and coating with high refraction, high bending, and low viscosity characteristics for the foldable smartphone has excellent process efficiency. A composition is provided.
상기와 같은 목적을 달성하기 위하여, 본 발명의 실시예에 따른 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물은 고굴절 특성 물질로 지르코니아 아크릴 모노머 졸과 플루오렌계 디아크릴레이트를 포함하며, 고굴곡 특성 물질로 Urethane-acrylic ester co-polymer를 포함하며, 저점도 특성 물질로 아크릴레이트 모노머를 포함하여 구성된다.In order to achieve the above object, the coating composition with high refractive index, high bending and low viscosity characteristics for a foldable smartphone according to an embodiment of the present invention includes zirconia acrylic monomer sol and fluorene-based diacrylate as high refractive material materials, It contains urethane-acrylic ester co-polymer as a material with high bending characteristics, and acrylate monomer as a material with low viscosity characteristics.
이 경우, 본 발명에 따른 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물은 광경화용 개시제와 레벨링제를 추가로 포함하는 것이 바람직하다.In this case, it is preferable that the coating composition for a foldable smartphone according to the present invention with high refractive index, high bending, and low viscosity characteristics additionally includes a photocuring initiator and a leveling agent.
이 경우, 본 발명에 따른 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물은 상기 고굴절 특성 물질로 지르코니아 아크릴 모노머 졸 25-84 중량부와 플루오렌계 디아크릴레이트 2-12 중량부를 포함하며, 상기 고굴곡 특성 물질로 Urethane-acrylic ester co-polymer 2-12 중량부를 포함하며, 상기 저점도 특성 물질로 아크릴레이트 모노머 10-60 중량부를 포함하는 것이 바람직하다. In this case, the coating composition with high refractive index, high bending and low viscosity characteristics for a foldable smartphone according to the present invention includes 25-84 parts by weight of zirconia acrylic monomer sol and 2-12 parts by weight of fluorene-based diacrylate as the high refractive material. , it is preferable that the high-flexibility material includes 2-12 parts by weight of urethane-acrylic ester co-polymer, and the low-viscosity material includes 10-60 parts by weight of acrylate monomer.
이 경우, 본 발명에 따른 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물은 상기 광경화용 개시제 2-4 중량부와 상기 레벨링제 0.05-0.15 중량부를 추가로 포함하는 것이 바람직하다.In this case, the coating composition for a foldable smartphone according to the present invention with high refraction, high bending, and low viscosity characteristics preferably further includes 2-4 parts by weight of the photocuring initiator and 0.05-0.15 parts by weight of the leveling agent.
이 경우, 본 발명에 따른 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물에서 상기 광경화용 개시제는 2-Hydroxy-2-methylpropiophenone, Diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide 또는 Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide 중 어느 하나 이상을 포함하며, 상기 레벨링제는 실록산과 실리콘, 다이메틸, 3-하이드록시프로필 메틸, 폴리에틸렌폴리프로필렌 글리콜 모노메틸 에테르의 에테르(Siloxanes and Silicones, di-Me, 3-hydroxypropyl Me, ethers with polyethylene-polypropylene glycol mono-Me ether)인 것이 바람직하다.In this case, in the coating composition with high refraction, high bending and low viscosity characteristics for a foldable smartphone according to the present invention, the photocuring initiator is 2-Hydroxy-2-methylpropiophenone, Diphenyl (2,4,6-trimethylbenzoyl) phosphine oxide or Phenylbis ( It contains at least one of 2,4,6-trimethylbenzoyl)phosphine oxide, and the leveling agent is siloxanes and silicones, dimethyl, 3-hydroxypropyl methyl, and polyethylene polypropylene glycol monomethyl ether. di-Me, 3-hydroxypropyl Me, ethers with polyethylene-polypropylene glycol mono-Me ether).
이 경우, 본 발명에 따른 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물에서 상기 지르코니아 아크릴 모노머 졸은 Zirconium dioxide(ZrO2)와 아크릴 모노머가 실란커플링제에 의해 표면처리되어 있는 것이 바람직하다.In this case, in the coating composition with high refraction, high bending and low viscosity characteristics for a foldable smartphone according to the present invention, it is preferable that the zirconia acrylic monomer sol is surface-treated with Zirconium dioxide (ZrO 2 ) and acrylic monomer with a silane coupling agent. .
이 경우, 본 발명에 따른 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물에서 상기 지르코니아 아크릴 모노머 졸은 상기 Zirconium dioxide(ZrO2) 30-50 중량부, 상기 아크릴 모노머 50-70 중량부와 상기 실란커플링제 2-5 중량부를 포함하고 있는 것이 바람직하다.In this case, in the coating composition with high refraction, high bending and low viscosity characteristics for a foldable smartphone according to the present invention, the zirconia acrylic monomer sol is 30-50 parts by weight of the Zirconium dioxide (ZrO 2 ), 50-70 parts by weight of the acrylic monomer, and It is preferable that it contains 2-5 parts by weight of the silane coupling agent.
이 경우, 본 발명에 따른 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물에서 상기 아크릴 모노머는 비스페놀플로렌디아크릴레이트, 바이페닐메틸아크릴레이트, 벤질아크릴레이트, 벤질메타크릴레이트, 페닐아크릴레이트, 디페닐아크릴레이트, 바이페닐아크릴레이트, 2-바이페닐릴아크릴레이트, 바이페닐메틸아크릴레이트, 2-([1,1'-바이페닐]-2-릴옥시)에틸아크릴레이트, 페녹시벤질아크릴레이트, 3-페녹시벤질-3-(1-나프틸)아크릴레이트, 에틸(2E)-3-히드록시-2-(3-페녹시벤질)아크릴레이트, 페닐메타크릴레이트, 바이페닐메타크릴레이트, 2-니트로페닐아크릴레이트, 4-니트로페닐아크릴레이트 또는 2-니트로페닐메타크릴레이트 중 어느 하나 이상을 포함하고 있는 것이 바람직하다.In this case, in the coating composition with high refractive index, high bending, and low viscosity characteristics for a foldable smartphone according to the present invention, the acrylic monomer is bisphenol florene diacrylate, biphenylmethyl acrylate, benzyl acrylate, benzyl methacrylate, and phenyl acrylate. Rate, diphenyl acrylate, biphenylacrylate, 2-biphenylyl acrylate, biphenylmethyl acrylate, 2-([1,1'-biphenyl]-2-yloxy)ethyl acrylate, phenoxy Benzyl acrylate, 3-phenoxybenzyl-3-(1-naphthyl)acrylate, ethyl (2E)-3-hydroxy-2-(3-phenoxybenzyl)acrylate, phenyl methacrylate, biphenyl It is preferable that it contains at least one of methacrylate, 2-nitrophenyl acrylate, 4-nitrophenyl acrylate, or 2-nitrophenyl methacrylate.
이 경우, 본 발명에 따른 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물에서 상기 실란커플링제는 폴리디메틸 실란, 프로필트리메톡시실란하이드로클로라이드, 에폭시실란, 메타크릴실란, 알킬실란, 페닐실란, 페닐트리메톡시실란, 페닐트리클로로실란, 클로로실란, 페닐클로로실란, 디클로로페닐실란, 디메톡시메틸페닐실란, 페닐트리메톡시실란, 디페닐디메톡시실란, 디에톡시디페닐실란, 메틸페닐디에톡시실란, 메틸페닐디클로로실란 또는 페녹시트리메틸실란 중 어느 하나 이상을 포함하고 있는 것이 바람직하다.In this case, in the coating composition with high refraction, high bending and low viscosity characteristics for a foldable smartphone according to the present invention, the silane coupling agent is polydimethyl silane, propyltrimethoxysilane hydrochloride, epoxy silane, methacryl silane, alkyl silane, and phenyl. Silane, phenyltrimethoxysilane, phenyltrichlorosilane, chlorosilane, phenylchlorosilane, dichlorophenylsilane, dimethoxymethylphenylsilane, phenyltrimethoxysilane, diphenyldimethoxysilane, diethoxydiphenylsilane, methylphenyldiethoxy It is preferable that it contains at least one of silane, methylphenyldichlorosilane, or phenoxytrimethylsilane.
이 경우, 본 발명에 따른 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물에서 상기 플루오렌계 디아크릴레이트는 9,9-Bis[4-(2-acryloyloxyethyloxy)phenyl]fluorene인 것이 바람직하다.In this case, in the coating composition with high refraction, high bending and low viscosity characteristics for a foldable smartphone according to the present invention, the fluorene-based diacrylate is preferably 9,9-Bis[4-(2-acryloyloxyethyloxy)phenyl]fluorene. .
이 경우, 본 발명에 따른 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물에서 상기 Urethane-acrylic ester co-polymer는 1,1'-메틸렌비스 [4-이소시아나 토시클로헥산]과 알파, 알파', 알파“-1,2,3-프로판트릴트리스[오메가-히드록시폴리(옥시(메틸-1,2-에탄딜)]]의 2-히드록시에틸 2-프로펜산 중합체(2-Propenoic acid, 2-hydroxyethyl ester, polymer with 1,1'-methylenebis(4-isocyanatocyclohexane) and alpha,alpha',alpha''-1,2,3-propanetriyltris(omega-hydroxypoly(oxy(methyl-1,2-ethanediyl))))인 것이 바람직하다.In this case, in the coating composition with high refraction, high bending and low viscosity characteristics for a foldable smartphone according to the present invention, the urethane-acrylic ester co-polymer is 1,1'-methylenebis [4-isocyana tocyclohexane] and alpha , alpha', alpha “-1,2,3-propanetriltris[omega-hydroxypoly(oxy(methyl-1,2-ethandyl)]] 2-hydroxyethyl 2-propenoic acid polymer (2- Propenoic acid, 2-hydroxyethyl ester, polymer with 1,1'-methylenebis(4-isocyanatocyclohexane) and alpha,alpha',alpha''-1,2,3-propanetriyltris(omega-hydroxypoly(oxy(methyl-1,2 -ethanediyl)))) is preferred.
이 경우, 본 발명에 따른 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물에서 상기 아크릴레이트 모노머는 2-(o-Phenylphenoxy) ethyl acrylate, 2-(2-ethenoxyethoxy)ethyl prop-2-enoate 또는 Benzyl methacrylate 중 어느 하나 이상을 포함하고 있는 것이 바람직하다.In this case, in the coating composition with high refraction, high bending and low viscosity characteristics for a foldable smartphone according to the present invention, the acrylate monomer is 2-(o-Phenylphenoxy) ethyl acrylate, 2-(2-ethenoxyethoxy)ethyl prop-2-enoate It is preferable that it contains at least one of or Benzyl methacrylate.
한편, 본 발명의 또 다른 실시예에 따른 윈도우부재는 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물이 코팅된 코팅층을 포함하여 구성된다.Meanwhile, a window member according to another embodiment of the present invention includes a coating layer coated with a coating composition with high refraction, high bending, and low viscosity characteristics for a foldable smartphone.
본 발명인 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물 및 이에 의해 코팅된 코팅층을 포함하는 윈도우부재는 다음과 같은 효과를 가진다.The present invention's coating composition for a foldable smartphone with high refractive index, high bending, and low viscosity characteristics and a window member including a coating layer coated thereby have the following effects.
첫째, 본 발명인 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물 및 이에 의해 코팅된 코팅층을 포함하는 윈도우부재는 폴더블 스마트폰의 투명 필름 상부 표면에 코팅조성물을 코팅하여 투명 필름의 굴곡 특성을 향상시키는 효과를 가진다. First, the present invention, a coating composition with high refractive index, high bending, and low viscosity characteristics for a foldable smartphone, and a window member including a coating layer coated thereby, coat the coating composition on the upper surface of the transparent film of the foldable smartphone to achieve the bending properties of the transparent film. has the effect of improving.
둘째, 본 발명인 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물 및 이에 의해 코팅된 코팅층을 포함하는 윈도우부재는 폴더블 스마트폰의 투명 필름 상부 표면에 코팅조성물을 코팅하여 투명 필름의 굴곡 특성을 향상시킴과 동시에 고굴절율을 가지도록 하여 광학적 특성을 향상시키는 효과를 가진다.Second, the present invention, a coating composition with high refractive index, high bending and low viscosity characteristics for a foldable smartphone, and a window member including a coating layer coated thereby, are obtained by coating the coating composition on the upper surface of the transparent film of the foldable smartphone to achieve the bending characteristics of the transparent film. It has the effect of improving optical properties by having a high refractive index and improving the optical properties at the same time.
셋째, 본 발명인 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물 및 이에 의해 코팅된 코팅층을 포함하는 윈도우부재는 저점도 특성을 가져, 폴더블 스마트폰의 투명 필름 상부 표면을 잉크젯 방식으로 코팅할 수 있고 공정효율성이 우수한 효과를 가진다.Third, the high refractive, high bending and low viscosity coating composition for a foldable smartphone according to the present invention and the window member including the coating layer coated thereby have low viscosity characteristics, and the upper surface of the transparent film of the foldable smartphone is coated using an inkjet method. It can be done and has excellent process efficiency.
본 명세서 및 청구범위에 사용되는 용어나 단어는 통상적이거나 사전적인 의미로 한정 해석되지 않으며, 발명자는 그 자신의 발명을 가장 최선의 방법으로 설명하기 위해 용어의 개념을 적절하게 정의할 수 있다는 점에 입각하여, 본 발명의 기술적 사상에 부합하는 의미와 개념으로 해석되어야 한다. 따라서, 본 발명의 명세서에 기재된 실시예와 도면에 도시된 구성은 본 발명의 가장 바람직한 일 실시예에 불과할 뿐이고 본 발명의 기술적 사상을 모두 대변하는 것은 아닌바, 본 발명의 출원 시점에 있어서 이를 대체할 수 있는 다양한 균등물과 변형예들이 가능하거나 존재할 수 있음을 이해하여야 할 것이다.The terms and words used in this specification and claims are not to be construed as limited to their usual or dictionary meanings, and the inventor may appropriately define the concept of terms in order to explain his or her invention in the best way. Based on this, it should be interpreted with meaning and concept consistent with the technical idea of the present invention. Accordingly, the embodiments described in the specification of the present invention and the configuration shown in the drawings are only one of the most preferred embodiments of the present invention and do not represent the entire technical idea of the present invention, and can be replaced at the time of filing of the present invention. It should be understood that various equivalents and modifications are possible or may exist.
또한, 본 발명을 설명하기에 앞서, 본 발명의 요지를 드러내기 위해서 필요하지 않은 사항 즉 통상의 지식을 가진 당업자가 자명하게 부가할 수 있는 공지 구성에 대해서는 설명하지 않거나, 구체적으로 기술하지 않았음을 밝혀둔다.In addition, before explaining the present invention, matters that are not necessary to reveal the gist of the present invention, that is, known configurations that can be easily added by a person skilled in the art, are not explained or described in detail. Let it be known.
이하, 본 발명의 바람직한 실시예와 비교예 등에 대해 설명한다.Hereinafter, preferred examples and comparative examples of the present invention will be described.
본 발명인 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물은 고굴절 특성 물질로 지르코니아 아크릴 모노머 졸과 플루오렌계 디아크릴레이트를 포함하며, 고굴곡 특성 물질로 Urethane-acrylic ester co-polymer를 포함하며, 저점도 특성 물질로 아크릴레이트 모노머를 포함하여 구성된다. 고굴절 특성을 가지는 지르코니아 아크릴 모노머 졸과 플루오렌계 디아크릴레이트가 코팅조성물에 포함됨으로써, 폴더블 스마트폰의 투명 필름 상부 표면에 코팅조성물을 코팅하고 경화시켜 코팅층을 형성하였을때 고굴절 특성을 가지게 된다. 그러나, 고굴절 특성을 가지는 지르코니아 아크릴 모노머 졸과 플루오렌계 디아크릴레이트가 코팅조성물에 포함됨으로써, 코팅조성물을 코팅하고 경화시켜 코팅층을 형성하였을때 굴곡 특성이 저하되는 문제가 발생할 수 있고, 코팅조성물의 점도가 상승하여 잉크젯 방식으로 코팅을 진행하기 어려운 문제가 발생할 수 있다. 이러한 굴곡 특성 저하의 문제를 해결하기 위해 코팅조성물에 고굴곡 특성 물질로 Urethane-acrylic ester co-polymer를 포함시켰으며, 점도 상승의 문제를 해결하기 위해 코팅조성물에 저점도 특성 물질로 아크릴레이트 모노머를 포함시켰다. 본 발명인 코팅조성물에서 고굴절 특성 물질인 지르코니아 아크릴 모노머 졸과 플루오렌계 디아크릴레이트, 고굴곡 특성 물질인 Urethane-acrylic ester co-polymer, 저점도 특성 물질인 아크릴레이트 모노머는 서로 혼화성을 지니며, 서로의 특성에 주는 영향을 최소화하는 독립적인 구성에 해당한다.The present invention's coating composition with high refractive index, high bending and low viscosity properties for a foldable smartphone contains zirconia acrylic monomer sol and fluorene diacrylate as a high refractive property material, and urethane-acrylic ester co-polymer as a high bending property material. It is composed of a low-viscosity material containing acrylate monomer. Zirconia acrylic monomer sol and fluorene-based diacrylate, which have high refractive properties, are included in the coating composition, so that when the coating composition is coated on the upper surface of the transparent film of a foldable smartphone and cured to form a coating layer, it has high refractive properties. However, since zirconia acrylic monomer sol and fluorene-based diacrylate, which have high refractive properties, are included in the coating composition, a problem may occur in which the bending characteristics are lowered when the coating composition is coated and cured to form a coating layer, and the coating composition As the viscosity increases, problems may arise that make coating using the inkjet method difficult. To solve this problem of deterioration in bending properties, urethane-acrylic ester co-polymer was included as a material with high bending properties in the coating composition, and acrylate monomer was added as a material with low viscosity in the coating composition to solve the problem of increased viscosity. included. In the coating composition of the present invention, zirconia acrylic monomer sol and fluorene-based diacrylate, which are materials with high refractive properties, urethane-acrylic ester co-polymer, which is a material with high refractive properties, and acrylate monomer, which is a material with low viscosity properties, are miscible with each other, It corresponds to an independent configuration that minimizes the influence on each other's characteristics.
본 발명인 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물에는 광경화용 개시제와 레벨링제가 추가로 포함될 수 있다. 광경화용 개시제가 포함됨으로써, 코팅조성물을 코팅하고 UV를 이용하여 경화시켜 코팅층을 형성시킬 수 있다. 이 경우 광경화용 개시제에 의해 열경화 방식이 아닌 광경화 방식의 경화가 진행될 수 있다. 다만, 경화 방식은 상황에 맞게 자유롭게 선택될 수 있는 것이고 본 발명인 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물이 반드시 광경화 방식에 한정되는 것은 아니다. 레벨링제는 고굴절, 고굴곡 및 저점도 특성 코팅층의 표면 장력을 강하게 저하시킨다. 코팅층의 표면 장력을 강하게 저하시킴으로써, 소재의 습윤성이 향상되고 분화구 현상을 방지할 수 있다. 다만 레벨링제가 너무 과량이면 레벨링제의 비극성 특성으로 인해 다른 원료와의 상용성이 미흡하여 과량 사용시 광학적 특성의 저하, 즉 투명한 것에 입사한 광선이 확산하는 정도인 헤이즈(Haze)가 커지는 문제가 발생할 수 있고 고온, 고습에서 표면에 얼룩이 발생할 수 있다.The coating composition for foldable smartphones of the present invention with high refractive index, high bending, and low viscosity characteristics may additionally include a photocuring initiator and a leveling agent. By including an initiator for photocuring, the coating composition can be coated and cured using UV to form a coating layer. In this case, curing may proceed by photocuring rather than thermal curing by the photocuring initiator. However, the curing method can be freely selected according to the situation, and the coating composition with high refraction, high bending, and low viscosity characteristics for a foldable smartphone according to the present invention is not necessarily limited to the photocuring method. The leveling agent strongly reduces the surface tension of the coating layer with high refraction, high bending, and low viscosity characteristics. By strongly reducing the surface tension of the coating layer, the wettability of the material can be improved and the crater phenomenon can be prevented. However, if the leveling agent is used in excessive amounts, it may have poor compatibility with other raw materials due to the non-polar nature of the leveling agent, which may cause problems such as deterioration of optical properties, that is, an increase in haze, which is the degree to which light rays incident on a transparent object are diffused. And stains may occur on the surface at high temperatures and high humidity.
본 발명인 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물은 상기 고굴절 특성 물질로 지르코니아 아크릴 모노머 졸 25-84 중량부와 플루오렌계 디아크릴레이트 2-12 중량부를 포함하며, 상기 고굴곡 특성 물질로 Urethane-acrylic ester co-polymer 2-12 중량부를 포함하며, 상기 저점도 특성 물질로 아크릴레이트 모노머 10-60 중량부를 포함할 수 있다. 본 발명인 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물에 고굴절 특성 물질인 지르코니아 아크릴 모노머 졸이 25 중량부 미만으로 포함되는 경우 굴절율 향상에 문제가 발생할 수 있고, 84 중량부를 초과하여 포함되면 굴곡 특성이 저하되어 밴딩 성능에 문제가 발생할 수 있고 점도 상승이 과다하여 잉크젯 방식으로 코팅을 진행하는데에 문제가 발생할 수 있다. 또한, 본 발명인 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물에 고굴절 특성 물질인 플루오렌계 디아크릴레이트가 2 중량부 미만으로 포함되는 경우 굴절율 향상에 문제가 발생할 수 있고, 12 중량부를 초과하여 포함되면 점도 상승이 과다하여 잉크젯 방식으로 코팅을 진행하는데에 문제가 발생할 수 있다. 본 발명인 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물에 고굴곡 특성 물질인 Urethane-acrylic ester co-polymer가 2 중량부 미만으로 포함되면 굴곡 특성이 저하되어 밴딩 성능에 문제가 발생할 수 있고, 12 중량부를 초과하여 포함되면 굴절율 상승에 문제가 발생할 수 있고 점도 상승이 과다하여 잉크젯 방식으로 코팅을 진행하는데에 문제가 발생할 수 있다. 본 발명인 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물에 저점도 특성 물질인 아크릴레이트 모노머가 10 중량부 미만으로 포함되면 점도 상승이 과다하여 잉크젯 방식으로 코팅을 진행하는데에 문제가 발생할 수 있고, 60 중량부를 초과하여 포함되면 굴절율 향상에 문제가 발생할 수 있다.The coating composition for a foldable smartphone with high refractive index, high bending and low viscosity properties of the present invention includes 25-84 parts by weight of zirconia acrylic monomer sol and 2-12 parts by weight of fluorene-based diacrylate as the high refractive property material, and has the high bending properties. The material may include 2-12 parts by weight of urethane-acrylic ester co-polymer, and the low viscosity material may include 10-60 parts by weight of acrylate monomer. If less than 25 parts by weight of zirconia acrylic monomer sol, a material with high refractive properties, is included in the coating composition with high refractive index, high bending, and low viscosity characteristics for a foldable smartphone of the present invention, problems may occur in improving the refractive index, and if it is included in excess of 84 parts by weight, it may cause problems in improving the refractive index. Problems may occur in banding performance due to deterioration of bending characteristics, and problems may occur in coating using the inkjet method due to excessive increase in viscosity. In addition, if less than 2 parts by weight of fluorene-based diacrylate, a material with high refractive properties, is included in the coating composition with high refractive index, high bending, and low viscosity characteristics for a foldable smartphone of the present invention, problems may occur in improving the refractive index, and 12 parts by weight may occur. If it is included in excess, the increase in viscosity may be excessive, which may cause problems during coating using the inkjet method. If less than 2 parts by weight of urethane-acrylic ester co-polymer, a high-flexibility material, is included in the coating composition with high refraction, high bending, and low viscosity properties for a foldable smartphone of the present invention, the bending properties may deteriorate and problems with bending performance may occur. , if it is included in excess of 12 parts by weight, problems may occur in increasing the refractive index and problems may occur in coating using the inkjet method due to excessive increase in viscosity. If less than 10 parts by weight of acrylate monomer, a low-viscosity material, is included in the coating composition with high refraction, high bending, and low viscosity properties for a foldable smartphone of the present invention, problems may occur during coating using the inkjet method due to excessive increase in viscosity. And, if it is included in excess of 60 parts by weight, problems may occur in improving the refractive index.
본 발명인 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물은 상기 광경화용 개시제 2-4 중량부와 상기 레벨링제 0.05-0.15 중량부를 추가로 포함할 수 있다. 본 발명인 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물에 광경화용 개시제가 2 중량부 미만으로 포함되면 광경화 반응이 충분히 발생하지 아니하여 물성 저하가 발생할 수 있고, 4 중량부를 초과하여 포함되면 경제성에 문제가 발생할 수 있다. 본 발명인 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물에 레벨링제가 0.05 중량부 미만으로 포함되면 코팅층의 표면 장력 저하가 미흡해져 분화구 현상이 발생할 수 있고, 0.15 중량부를 초과하여 포함되면 광학적 특성이 저하되고 고온, 고습에서 표면 얼룩의 문제가 발생할 수 있다.The present invention's coating composition for a foldable smartphone with high refractive index, high bending, and low viscosity characteristics may further include 2-4 parts by weight of the photocuring initiator and 0.05-0.15 parts by weight of the leveling agent. If less than 2 parts by weight of the photocuring initiator is included in the coating composition with high refractive index, high bending, and low viscosity characteristics for a foldable smartphone of the present invention, the photocuring reaction may not sufficiently occur and physical properties may deteriorate, and if it is included in an amount exceeding 4 parts by weight, the photocuring initiator may not sufficiently occur. If this happens, problems with economic feasibility may arise. If the leveling agent is included in the coating composition with high refraction, high bending, and low viscosity characteristics for a foldable smartphone of the present invention in an amount of less than 0.05 parts by weight, the surface tension of the coating layer is insufficiently lowered and a crater phenomenon may occur, and if it is included in an amount exceeding 0.15 parts by weight, the optical properties may be reduced. This may deteriorate and problems with surface staining may occur at high temperatures and high humidity.
본 발명인 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물에서 상기 광경화용 개시제는 2-Hydroxy-2-methylpropiophenone, Diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide 또는 Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide 중 어느 하나 이상을 포함할 수 있으며, 상기 레벨링제는 실록산과 실리콘, 다이메틸, 3-하이드록시프로필 메틸, 폴리에틸렌폴리프로필렌 글리콜 모노메틸 에테르의 에테르(Siloxanes and Silicones, di-Me, 3-hydroxypropyl Me, ethers with polyethylene-polypropylene glycol mono-Me ether)일 수 있다. 본 발명인 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물에서 상기 광경화용 개시제는 2-Hydroxy-2-methylpropiophenone, Diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide 또는 Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide가 각각 단독으로 전량 사용될 수 있으며, 2종 또는 3종이 혼합되어 사용될 수 있다. 3종의 광경화용 개시제가 혼합되어 사용되는 것이 지르코니아 아크릴 모노머 졸, 플루오렌계 디아크릴레이트, Urethane-acrylic ester co-polymer 및 아크릴레이트 모노머 각각에 대해 적합하게 광경화 반응을 개시할 수 있다는 점에서 바람직하다. 본 발명인 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물에서 상기 레벨링제로는 실록산과 실리콘, 다이메틸, 3-하이드록시프로필 메틸, 폴리에틸렌폴리프로필렌 글리콜 모노메틸 에테르의 에테르(Siloxanes and Silicones, di-Me, 3-hydroxypropyl Me, ethers with polyethylene-polypropylene glycol mono-Me ether)를 사용하는 것이 바람직하다. In the coating composition with high refraction, high bending and low viscosity characteristics for a foldable smartphone of the present invention, the photocuring initiator is 2-Hydroxy-2-methylpropiophenone, Diphenyl (2,4,6-trimethylbenzoyl) phosphine oxide or Phenylbis (2,4,6 It may contain one or more of -trimethylbenzoyl)phosphine oxide, and the leveling agent is an ether of siloxane and silicone, dimethyl, 3-hydroxypropyl methyl, and polyethylenepolypropylene glycol monomethyl ether (Siloxanes and Silicones, di-Me , 3-hydroxypropyl Me, ethers with polyethylene-polypropylene glycol mono-Me ether). In the coating composition with high refraction, high bending and low viscosity characteristics for a foldable smartphone of the present invention, the photocuring initiator is 2-Hydroxy-2-methylpropiophenone, Diphenyl (2,4,6-trimethylbenzoyl) phosphine oxide or Phenylbis (2,4,6 -trimethylbenzoyl)phosphine oxide can be used individually in its entirety, or two or three types can be used in combination. The use of a mixture of three types of photocuring initiators allows the photocuring reaction to be appropriately initiated for each of zirconia acrylic monomer sol, fluorene diacrylate, urethane-acrylic ester co-polymer, and acrylate monomer. desirable. In the coating composition with high refraction, high bending and low viscosity characteristics for a foldable smartphone of the present invention, the leveling agent includes siloxane and silicone, dimethyl, 3-hydroxypropyl methyl, and ether of polyethylene polypropylene glycol monomethyl ether (Siloxanes and Silicones, di It is preferable to use -Me, 3-hydroxypropyl Me, ethers with polyethylene-polypropylene glycol mono-Me ether).
본 발명인 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물에서 상기 지르코니아 아크릴 모노머 졸은 Zirconium dioxide(ZrO2)와 아크릴 모노머가 실란커플링제에 의해 표면처리되어 있는 것이 바람직하다. 이 경우 상기 지르코니아 아크릴 모노머 졸은 상기 Zirconium dioxide(ZrO2) 30-50 중량부, 상기 아크릴 모노머 50-70 중량부와 상기 실란커플링제 2-5 중량부를 포함하고 있는 것이 바람직하다. 본 발명인 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물의 상기 지르코니아 아크릴 모노머 졸에서 Zirconium dioxide(ZrO2)가 30 중량부 미만으로 포함되면 굴절율 향상에 문제가 발생할 수 있고, Zirconium dioxide(ZrO2)가 50 중량부 초과하여 포함되면 굴곡 특성이 저하되어 밴딩 성능에 문제가 발생할 수 있고 점도 상승이 과다하여 잉크젯 방식으로 코팅을 진행하는데에 문제가 발생할 수 있다. 본 발명인 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물의 상기 지르코니아 아크릴 모노머 졸에서 상기 아크릴 모노머가 50 중량부 미만으로 포함되면 점도 상승이 과다하여 잉크젯 방식으로 코팅을 진행하는데에 문제가 발생할 수 있고, 상기 아크릴 모노머가 70 중량부 초과하여 포함되면 굴절율 향상에 문제가 발생할 수 있다. 본 발명인 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물의 상기 지르코니아 아크릴 모노머 졸에서 상기 실란커플링제가 2-5 중량부의 범위를 벗어나는 경우, 실란커플링제에 의한 Zirconium dioxide(ZrO2)와 아크릴 모노머의 표면처리에 문제가 발생할 수 있고, 지르코니아 아크릴 모노머 졸의 고굴절 특성에 문제가 발생할 수 있다.In the coating composition for a foldable smartphone of the present invention with high refraction, high bending and low viscosity characteristics, the zirconia acrylic monomer sol is preferably surface-treated with zirconium dioxide (ZrO 2 ) and acrylic monomer with a silane coupling agent. In this case, the zirconia acrylic monomer sol preferably contains 30-50 parts by weight of the zirconium dioxide (ZrO 2 ), 50-70 parts by weight of the acrylic monomer, and 2-5 parts by weight of the silane coupling agent. If Zirconium dioxide (ZrO 2 ) is included in less than 30 parts by weight in the zirconia acrylic monomer sol of the high refractive index, high bending, and low viscosity coating composition for a foldable smartphone of the present invention, problems may occur in improving the refractive index, and Zirconium dioxide (ZrO 2 ) If it is included in excess of 50 parts by weight, the bending characteristics may deteriorate, which may cause problems with bending performance, and the increase in viscosity may be excessive, which may cause problems in coating using the inkjet method. If the acrylic monomer is included in an amount of less than 50 parts by weight in the zirconia acrylic monomer sol of the coating composition with high refraction, high bending and low viscosity characteristics for a foldable smartphone of the present invention, the increase in viscosity will be excessive, causing problems in coating using the inkjet method. If the acrylic monomer is included in excess of 70 parts by weight, problems may occur in improving the refractive index. If the silane coupling agent exceeds the range of 2-5 parts by weight in the zirconia acrylic monomer sol of the coating composition with high refractive index, high bending, and low viscosity characteristics for a foldable smartphone of the present invention, Zirconium dioxide (ZrO 2 ) and Problems may occur in the surface treatment of the acrylic monomer, and problems may occur in the high refractive properties of the zirconia acrylic monomer sol.
본 발명인 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물에서 상기 지르코니아 아크릴 모노머 졸의 상기 아크릴 모노머는 비스페놀플로렌디아크릴레이트, 바이페닐메틸아크릴레이트, 벤질아크릴레이트, 벤질메타크릴레이트, 페닐아크릴레이트, 디페닐아크릴레이트, 바이페닐아크릴레이트, 2-바이페닐릴아크릴레이트, 바이페닐메틸아크릴레이트, 2-([1,1'-바이페닐]-2-릴옥시)에틸아크릴레이트, 페녹시벤질아크릴레이트, 3-페녹시벤질-3-(1-나프틸)아크릴레이트, 에틸(2E)-3-히드록시-2-(3-페녹시벤질)아크릴레이트, 페닐메타크릴레이트, 바이페닐메타크릴레이트, 2-니트로페닐아크릴레이트, 4-니트로페닐아크릴레이트 또는 2-니트로페닐메타크릴레이트 중 어느 하나 이상을 포함하는 것이 바람직하다. 이상의 아크릴 모노머는 상기 지르코니아 아크릴 모노머 졸에 각각 단독으로 전량 사용될 수 있으며, 2종, 3종 또는 그 이상이 혼합되어 사용될 수 있다. 바람직하게는 상기 지르코니아 아크릴 모노머 졸에 바이페닐메틸아크릴레이트가 아크릴 모노머로 사용될 수 있다.In the coating composition with high refraction, high bending and low viscosity characteristics for a foldable smartphone of the present invention, the acrylic monomer of the zirconia acrylic monomer sol is bisphenol florenedicrylate, biphenylmethyl acrylate, benzyl acrylate, benzyl methacrylate, and phenyl. Acrylate, diphenyl acrylate, biphenyl acrylate, 2-biphenylyl acrylate, biphenylmethyl acrylate, 2-([1,1'-biphenyl]-2-yloxy)ethyl acrylate, phenocrylate Cybenzyl acrylate, 3-phenoxybenzyl-3-(1-naphthyl)acrylate, ethyl (2E)-3-hydroxy-2-(3-phenoxybenzyl)acrylate, phenyl methacrylate, bi It is preferable to include at least one of phenyl methacrylate, 2-nitrophenyl acrylate, 4-nitrophenyl acrylate, or 2-nitrophenyl methacrylate. The above acrylic monomers may be used individually in their entirety in the zirconia acrylic monomer sol, or two, three, or more types may be used in combination. Preferably, biphenylmethyl acrylate may be used as the acrylic monomer in the zirconia acrylic monomer sol.
본 발명인 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물에서 상기 지르코니아 아크릴 모노머 졸의 상기 실란커플링제는 폴리디메틸 실란, 프로필트리메톡시실란하이드로클로라이드, 에폭시실란, 메타크릴실란, 알킬실란, 페닐실란, 페닐트리메톡시실란, 페닐트리클로로실란, 클로로실란, 페닐클로로실란, 디클로로페닐실란, 디메톡시메틸페닐실란, 페닐트리메톡시실란, 디페닐디메톡시실란, 디에톡시디페닐실란, 메틸페닐디에톡시실란, 메틸페닐디클로로실란 또는 페녹시트리메틸실란 중 어느 하나 이상을 포함하는 것이 바람직하다. 이상의 실란커플링제는 상기 지르코니아 아크릴 모노머 졸에 각각 단독으로 전량 사용될 수 있으며, 2종, 3종 또는 그 이상이 혼합되어 사용될 수 있다. 바람직하게는 상기 지르코니아 아크릴 모노머 졸에 3-(N-styrymethyl-2-aminoethylamino)propyltrimethoxysilane hydrochloride가 실란커플링제로 사용될 수 있다. In the coating composition with high refraction, high bending and low viscosity characteristics for a foldable smartphone of the present invention, the silane coupling agent of the zirconia acrylic monomer sol is polydimethyl silane, propyltrimethoxysilane hydrochloride, epoxy silane, methacryl silane, alkyl silane, Phenylsilane, phenyltrimethoxysilane, phenyltrichlorosilane, chlorosilane, phenylchlorosilane, dichlorophenylsilane, dimethoxymethylphenylsilane, phenyltrimethoxysilane, diphenyldimethoxysilane, diethoxydiphenylsilane, methylphenyldiene It is preferred that it contains at least one of oxysilane, methylphenyldichlorosilane, or phenoxytrimethylsilane. The above silane coupling agents may be used in their entirety in the zirconia acrylic monomer sol, or may be used in combination of two, three, or more types. Preferably, 3-(N-styrymethyl-2-aminoethylamino)propyltrimethoxysilane hydrochloride may be used as a silane coupling agent in the zirconia acrylic monomer sol.
본 발명인 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물에서 고굴절 특성 물질인 상기 플루오렌계 디아크릴레이트로는 9,9-Bis[4-(2-acryloyloxyethyloxy)phenyl]fluorene을 사용하는 것이 바람직하다.In the coating composition with high refraction, high bending and low viscosity characteristics for a foldable smartphone of the present invention, 9,9-Bis[4-(2-acryloyloxyethyloxy)phenyl]fluorene is used as the fluorene-based diacrylate, which is a high refractive material. desirable.
본 발명인 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물에서 고굴곡 특성 물질인 Urethane-acrylic ester co-polymer로는 1,1'-메틸렌비스 [4-이소시아나 토시클로헥산]과 알파, 알파', 알파“-1,2,3-프로판트릴트리스[오메가-히드록시폴리(옥시(메틸-1,2-에탄딜)]]의 2-히드록시에틸 2-프로펜산 중합체(2-Propenoic acid, 2-hydroxyethyl ester, polymer with 1,1'-methylenebis(4-isocyanatocyclohexane) and alpha,alpha',alpha''-1,2,3-propanetriyltris(omega-hydroxypoly(oxy(methyl-1,2-ethanediyl))))을 사용하는 것이 바람직하다. Urethane-acrylic ester co-polymer, which is a high-flexibility material in the coating composition with high refraction, high bending, and low viscosity properties for a foldable smartphone of the present invention, includes 1,1'-methylenebis [4-isocyana tocyclohexane] and alpha, Alpha', alpha “-1,2,3-propanetriltris[omega-hydroxypoly(oxy(methyl-1,2-ethandyl)]] 2-hydroxyethyl 2-propenoic acid polymer (2-Propenoic acid) acid, 2-hydroxyethyl ester, polymer with 1,1'-methylenebis(4-isocyanatocyclohexane) and alpha,alpha',alpha''-1,2,3-propanetriyltris(omega-hydroxypoly(oxy(methyl-1,2- It is preferable to use ethanediyl)))).
본 발명인 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물에서 저점도 특성 물질인 아크릴레이트 모노머로는 2-(o-Phenylphenoxy) ethyl acrylate, 2-(2-ethenoxyethoxy)ethyl prop-2-enoate 또는 Benzyl methacrylate 중 어느 하나 이상을 사용하는 것이 바람직하다. 이상의 아크릴레이트 모노머는 상기 코팅조성물에 각각 단독으로 전량 사용될 수 있으며, 2종 또는 3종이 혼합되어 사용될 수 있다. 바람직하게는 상기 코팅조성물에 3종의 2-(o-Phenylphenoxy) ethyl acrylate, 2-(2-ethenoxyethoxy)ethyl prop-2-enoate 및 Benzyl methacrylate가 혼합되어 저점도 특성 물질인 아크릴레이트 모노머로 사용될 수 있다. In the coating composition with high refraction, high bending and low viscosity properties for a foldable smartphone of the present invention, acrylate monomers that are low viscosity materials include 2-(o-Phenylphenoxy) ethyl acrylate and 2-(2-ethenoxyethoxy)ethyl prop-2-enoate. Alternatively, it is preferable to use one or more of Benzyl methacrylate. The above acrylate monomers may be used individually in their entirety in the coating composition, or two or three types may be used in combination. Preferably, three types of 2-(o-Phenylphenoxy) ethyl acrylate, 2-(2-ethenoxyethoxy)ethyl prop-2-enoate, and Benzyl methacrylate are mixed in the coating composition to be used as an acrylate monomer, a material with low viscosity characteristics. there is.
본 발명인 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물은 투명 필름에 저점도 특성으로 인해 잉크젯 방식으로 코팅될 수 있고, 코팅층에 대해 경화과정 진행 후 고굴절 및 고굴곡 특성을 가지는 코팅층을 포함하는 윈도우부재를 형성할 수 있다.The present invention's coating composition for foldable smartphones with high refraction, high bending, and low viscosity characteristics can be coated on a transparent film using an inkjet method due to its low viscosity properties, and includes a coating layer having high refractive and high bending properties after a curing process is performed on the coating layer. A window member can be formed.
[제조예 1][Production Example 1]
본 발명인 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물에서 상기 지르코니아 아크릴 모노머 졸은 다음과 같은 과정을 통해 제조된다. In the coating composition for a foldable smartphone of the present invention with high refractive index, high bending and low viscosity characteristics, the zirconia acrylic monomer sol is manufactured through the following process.
Zirconium dioxide(ZrO2)가 30%의 비율로 Propylene glycol mono methyl ether 상에 분산된 Zirconium dioxide 졸 200g에 실란커플링제로 3-(N-styrymethyl-2-aminoethylamino)propyltrimethoxysilane hydrochloride를 5g, Propylene glycol mono methyl ether 510g을 혼합하고 50℃ 온도에서 1시간 동안 1차 교반한다.5g of 3-(N-styrymethyl-2-aminoethylamino)propyltrimethoxysilane hydrochloride as a silane coupling agent was added to 200g of zirconium dioxide (ZrO 2 ) dispersed in propylene glycol mono methyl ether at a ratio of 30%, and 5g of propylene glycol mono methyl. Mix 510 g of ether and first stir at 50°C for 1 hour.
1차 교반 후, 인산에스테르계 분산제 5g, Propylene glycol mono methyl ether 50g과 아크릴 모노머로 BiphenylMethyl acrylate 90g을 혼합하고 50℃ 온도에서 30분 동안 2차 교반한다.After primary stirring, 5 g of phosphate ester-based dispersant, 50 g of propylene glycol mono methyl ether, and 90 g of BiphenylMethyl acrylate as an acrylic monomer are mixed and stirred for a second time at 50°C for 30 minutes.
반응이 완료된 반응물을 증류장치(Evaporator)를 사용하여 70℃ 온도 조건에서 감압증류를 실시한다. 고형분 98% 이상의 반응물을 얻을 때까지 감압증류를 실시하고, 이때 추출된 혼합 불순물은 폐기한다. After the reaction is completed, the reactant is subjected to reduced pressure distillation at a temperature of 70°C using an evaporator. Reduced pressure distillation is performed until a reactant with a solid content of 98% or more is obtained, and the mixed impurities extracted at this time are discarded.
이상의 과정을 거쳐 상기 Zirconium dioxide(ZrO2) 40 중량부, 상기 아크릴 모노머 60 중량부와 상기 실란커플링제 3.33 중량부가 포함된 지르코니아 아크릴 모노머 졸을 제조하였다.Through the above process, a zirconia acrylic monomer sol containing 40 parts by weight of zirconium dioxide (ZrO 2 ), 60 parts by weight of the acrylic monomer, and 3.33 parts by weight of the silane coupling agent was prepared.
[실시예 1-9 및 비교예 1-3][Example 1-9 and Comparative Example 1-3]
표 1은 고굴절 특성 물질로 사용되는 지르코니아 아크릴 모노머 졸과 플루오렌계 디아크릴레이트의 구성 및 조성, 고굴곡 특성 물질로 사용되는 Urethane-acrylic ester co-polymer의 구성 및 조성, 저점도 특성 물질로 사용되는 아크릴레이트 모노머의 구성 및 조성을 나타내는 표이다. 이하의 표 1의 구성 및 조성에 따라 반응기에 혼합하고 1시간 동안 교반한 후 실시예 1-9 및 비교예 1-3에 대해 액상 굴절율, 점도를 측정하였고, 실시예 1-9 및 비교예 1-3을 50㎛ 두께의 투명 이미드 필름 위에 10㎛ 두께로 슬릿 코팅을 진행하고, 150W Metal halide lamp를 이용해 10초간 UV 경화를 진행하여 실시예 1-9 및 비교예 1-3의 코팅조성물이 코팅된 필름시편을 얻을 수 있었고, 이에 대해 투과율 및 Haze를 측정하였고, Folding test를 진행하고 필름 굴절율을 측정하였다. Table 1 shows the composition and composition of zirconia acrylic monomer sol and fluorene diacrylate used as a high refractive property material, the composition and composition of urethane-acrylic ester co-polymer used as a high refractive property material, and the low viscosity property material. This is a table showing the composition and composition of acrylate monomers. After mixing in the reactor and stirring for 1 hour according to the composition and composition in Table 1 below, the liquid phase refractive index and viscosity were measured for Examples 1-9 and Comparative Examples 1-3, Examples 1-9 and Comparative Examples 1 -3 was slit coated to a thickness of 10 μm on a 50 μm thick transparent imide film, and UV cured for 10 seconds using a 150 W metal halide lamp to obtain the coating composition of Example 1-9 and Comparative Example 1-3. A coated film specimen was obtained, the transmittance and haze were measured, a folding test was performed, and the film refractive index was measured.
상기 표 1에서 제조된 실시예 1-9에 의해 지르코니아 아크릴 모노머 졸(고굴절특성)과 9,9-Bis[4-(2-acryloyloxyethyloxy)phenyl]fluorene(고굴절특성)이 굴절율에 각각 영향을 주는지 확인하였고, 1,1'-메틸렌비스 [4-이소시아나 토시클로헥산]과 알파, 알파', 알파“-1,2,3-프로판트릴트리스[오메가-히드록시폴리(옥시(메틸-1,2-에탄딜)]]의 2-히드록시에틸 2-프로펜산 중합체(2-Propenoic acid, 2-hydroxyethyl ester, polymer with 1,1'-methylenebis(4-isocyanatocyclohexane) and alpha,alpha',alpha''-1,2,3-propanetriyltris(omega-hydroxypoly(oxy(methyl-1,2-ethanediyl))))(고굴곡 특성)이 굴곡성(밴딩성)에 영향을 주는지 확인하였으며, 2-(o-Phenylphenoxy) ethyl acrylate(저점도 특성), 2-(2-ethenoxyethoxy)ethyl prop-2-enoate(저점도 특성) 및 Benzyl methacrylate(저점도 특성)가 점도에 각각 영향을 주는지 확인하였다. 또한, 비교예 1-3을 통하여 지르코니아 아크릴 모노머 졸(고굴절특성)의 존재에 따라 굴절율과 투과율 물성에 차이가 나타나는 것을 확인하였다. By Example 1-9 prepared in Table 1 above, it was confirmed whether zirconia acrylic monomer sol (high refractive properties) and 9,9-Bis[4-(2-acryloyloxyethyloxy)phenyl]fluorene (high refractive properties) each affected the refractive index. 1,1'-methylenebis [4-isocyana tocyclohexane] and alpha, alpha', alpha “-1,2,3-propanetriltris [omega-hydroxypoly(oxy(methyl-1, 2-Propenoic acid, 2-hydroxyethyl ester, polymer with 1,1'-methylenebis(4-isocyanatocyclohexane) and alpha,alpha',alpha' '-1,2,3-propanetriyltris(omega-hydroxypoly(oxy(methyl-1,2-ethanediyl)))) (high bending properties) was confirmed to have an effect on bending properties, and 2-(o- It was confirmed whether phenylphenoxy) ethyl acrylate (low viscosity properties), 2-(2-ethenoxyethoxy)ethyl prop-2-enoate (low viscosity properties), and Benzyl methacrylate (low viscosity properties) each affect viscosity. In addition, comparative examples 1-3, it was confirmed that there was a difference in the refractive index and transmittance properties depending on the presence of zirconia acrylic monomer sol (high refractive properties).
이상에서 준비한 실시예 1 내지 실시예 9의 코팅조성물 및 비교예 1 내지 비교예 3의 코팅조성물과 실시예 1-9 및 비교예 1-3의 코팅조성물이 코팅된 필름시편에 대해 다음과 같은 실험을 실시하였다.The following experiments were conducted on film specimens coated with the coating compositions of Examples 1 to 9 prepared above, the coating compositions of Comparative Examples 1 to 3, and the coating compositions of Examples 1-9 and Comparative Examples 1-3. was carried out.
(1) 액상 굴절율 측정(1) Measurement of liquid refractive index
실시예 1-9 및 비교예 1-3의 코팅조성물에 대한 액상굴절율 측정은 측정장비(ABBE / NAR-3T)를 이용하여 상온 25℃에서 측정되었다.The liquid refractive index of the coating compositions of Examples 1-9 and Comparative Examples 1-3 was measured at room temperature 25°C using measuring equipment (ABBE/NAR-3T).
(2) 점도 측정(2) Viscosity measurement
실시예 1-9 및 비교예 1-3의 코팅조성물에 대한 점도 측정은 측정장비(Brookfield / LVDV II+type)를 이용하여 상온 25℃에서 측정되었다. The viscosity of the coating compositions of Examples 1-9 and Comparative Examples 1-3 was measured at room temperature 25°C using a measuring device (Brookfield / LVDV II+type).
(3) Folding test (3) Folding test
실시예 1-9 및 비교예 1-3의 코팅조성물이 코팅된 필름시편에 대한 Folding 측정은 폭 25mm x 길이 150mm 크기로 제단하고, 측정장비(ForeHu Co.,Ltd / F1_2SV)를 이용하여 곡률 반경 1.5mm에서 1일 86,400회 반복하여 총 200,000회까지 평가를 진행하였다. 200,000회 Folding 측정이 끝난 필름시편에서 Crack, 끊어짐, 주름 현상이 나타난 경우에는 NG로 평가하였고, Crack, 끊어짐, 주름 현상이 나타나지 않은 경우에는 OK로 평가하였다. Folding measurements on film specimens coated with the coating compositions of Examples 1-9 and Comparative Examples 1-3 were cut to a size of 25 mm wide x 150 mm long, and the radius of curvature was measured using measuring equipment (ForeHu Co., Ltd. / F1_2SV). The evaluation was carried out at 1.5 mm, repeating 86,400 times per day for a total of 200,000 times. If cracks, breaks, or wrinkles appeared in the film specimen after 200,000 folding measurements, it was evaluated as NG, and if cracks, breaks, or wrinkles did not appear, it was evaluated as OK.
(4) 투과율 및 Haze 측정(4) Transmittance and Haze measurement
광투과율 평가는 ASTM D1003 기준으로 전광선투과율(Tt)과 평행투과율(Tp)을 측정하고, 전광선투과율(Tt)에서 평행투과율(Tp)을 뺀 값이 확산투과율(Td)에 해당한다. 전광선투과율(Tt)이 크고 확산투과율(Td)이 작을 수록 광학적 성질이 우수한 물질에 해당한다. 또한 빛이 투명한 재료 안을 통과할 때 재료의 종류에 따라서는 반사나 흡수 외에 그 재료의 고유 성질에 따라 광선이 확산되어 불투명한 흐림상 외관을 나타내는 것이 존재하는데, 이 현상을 헤이즈(Haze)라고 부르며, 이같이 투명한 것에 입사한 광선이 확산하는 정도를 헤이즈라 한다. 헤이즈가 작을 수록 광학적 성질이 우수한 물질에 해당한다.Light transmittance evaluation measures the total light transmittance (Tt) and parallel transmittance (Tp) based on ASTM D1003, and the value obtained by subtracting the parallel transmittance (Tp) from the total light transmittance (Tt) corresponds to the diffuse transmittance (Td). The higher the total light transmittance (Tt) and the smaller the diffuse transmittance (Td), the more excellent the optical properties are. Additionally, when light passes through a transparent material, depending on the type of material, in addition to reflection or absorption, the rays may spread depending on the inherent properties of the material, creating an opaque, cloudy appearance. This phenomenon is called haze. , The degree to which light rays incident on a transparent object are spread is called haze. The smaller the haze, the more excellent the optical properties are.
헤이즈(Haze) = 확산투과율(Td) / 전광선투과율(Tt)Haze = Diffuse Transmittance (Td) / Total Light Transmittance (Tt)
실시예 1-9 및 비교예 1-3의 코팅조성물이 코팅된 필름시편에 대한 투과율 및 Haze측정은 측정장비(Nippon Denshoku / NDH-5000)를 이용하여 측정되엇다.Transmittance and Haze measurements for film specimens coated with the coating compositions of Examples 1-9 and Comparative Examples 1-3 were measured using measuring equipment (Nippon Denshoku / NDH-5000).
(5) 필름 굴절율 측정(5) Film refractive index measurement
실시예 1-9 및 비교예 1-3의 코팅조성물이 코팅된 필름시편에 대한 필름 굴절율 측정은 측정장비(Ellipsotechnology/Elli-SE)를 이용하여 550nm 파장의 굴절율 수치가 측정되었다.The film refractive index of the film specimen coated with the coating composition of Examples 1-9 and Comparative Examples 1-3 was measured using a measuring device (Ellipsotechnology/Elli-SE) at a wavelength of 550 nm.
표 2는 본 발명인 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물의 실시예 1-9 및 비교예 1-3에 대해 액상 굴절율, 점도를 측정한 결과와 실시예 1-9 및 비교예 1-3의 코팅조성물이 코팅된 필름시편에 대해 투과율 및 Haze를 측정하고, Folding test를 진행한 결과를 나타낸 표이다. Table 2 shows the results of measuring the liquid refractive index and viscosity of Examples 1-9 and Comparative Examples 1-3 of the coating composition with high refractive index, high bending, and low viscosity characteristics for a foldable smartphone of the present invention, and Examples 1-9 and Comparative Examples. This table shows the results of measuring transmittance and haze and conducting a folding test on film specimens coated with the coating composition of 1-3.
상기 표 2에 의하면 제조된 실시예 1-9의 경우 코팅조성물에 지르코니아 아크릴 모노머 졸(고굴절특성)과 9,9-Bis[4-(2-acryloyloxyethyloxy)phenyl]fluorene(고굴절특성)이 포함됨에 따라 굴절율이 높게 나타났으며, 1,1'-메틸렌비스 [4-이소시아나 토시클로헥산]과 알파, 알파', 알파“-1,2,3-프로판트릴트리스[오메가-히드록시폴리(옥시(메틸-1,2-에탄딜)]]의 2-히드록시에틸 2-프로펜산 중합체(2-Propenoic acid, 2-hydroxyethyl ester, polymer with 1,1'-methylenebis(4-isocyanatocyclohexane) and alpha,alpha',alpha''-1,2,3-propanetriyltris(omega-hydroxypoly(oxy(methyl-1,2-ethanediyl))))(고굴곡 특성)이 포함됨에 따라 Folding test에서 20만회를 통과하였고, 2-(o-Phenylphenoxy) ethyl acrylate(저점도 특성), 2-(2-ethenoxyethoxy)ethyl prop-2-enoate(저점도 특성) 및 Benzyl methacrylate(저점도 특성)가 포함됨에 따라 350cps 이하의 점도를 나타내어 잉크젯 방식으로 코팅을 진행하는데 큰 어려움이 없었다.According to Table 2, in the case of Example 1-9 prepared, the coating composition contained zirconia acrylic monomer sol (high refractive properties) and 9,9-Bis[4-(2-acryloyloxyethyloxy)phenyl]fluorene (high refractive properties). The refractive index was high, and 1,1'-methylenebis [4-isocyana tocyclohexane] and alpha, alpha', alpha “-1,2,3-propanetritris[omega-hydroxypoly(oxyl) (methyl-1,2-ethandyl)]]'s 2-hydroxyethyl 2-propenoic acid polymer (2-Propenoic acid, 2-hydroxyethyl ester, polymer with 1,1'-methylenebis(4-isocyanatocyclohexane) and alpha, As alpha',alpha''-1,2,3-propanetriyltris(omega-hydroxypoly(oxy(methyl-1,2-ethanediyl)))) (high bending properties) is included, it passed 200,000 times in the folding test. By containing 2-(o-Phenylphenoxy) ethyl acrylate (low viscosity characteristics), 2-(2-ethenoxyethoxy)ethyl prop-2-enoate (low viscosity characteristics), and Benzyl methacrylate (low viscosity characteristics), the viscosity is less than 350 cps. There was no great difficulty in coating using the inkjet method.
상기 표 2에 의하면 비교예 1은 1,1'-메틸렌비스 [4-이소시아나 토시클로헥산]과 알파, 알파', 알파“-1,2,3-프로판트릴트리스[오메가-히드록시폴리(옥시(메틸-1,2-에탄딜)]]의 2-히드록시에틸 2-프로펜산 중합체(2-Propenoic acid, 2-hydroxyethyl ester, polymer with 1,1'-methylenebis(4-isocyanatocyclohexane) and alpha,alpha',alpha''-1,2,3-propanetriyltris(omega-hydroxypoly(oxy(methyl-1,2-ethanediyl))))(고굴곡 특성) 물질 함량이 높은 샘플로써 굴곡성(밴딩성)은 우수하지만 굴절율과 투과율 등의 광학특성이 낮은 문제가 있고, 비교예 2의 경우 지르코니아 아크릴 모노머 졸(고굴절특성) 대신에 9,9-Bis[4-(2-acryloyloxyethyloxy)phenyl]fluorene(고굴절특성)을 사용하여 굴절율과 투과율 등을 어느정도 보완하였지만 점도가 너무 높아 잉크젯 방식으로 코팅을 진행하기 어려운 문제가 존재한다. 또한, 비교예 3의 경우 2-(o-Phenylphenoxy) ethyl acrylate(저점도 특성), 2-(2-ethenoxyethoxy)ethyl prop-2-enoate(저점도 특성) 및 Benzyl methacrylate(저점도 특성)을 다량으로 사용하여 점도가 매우 낮아 잉크젯 방식으로 코팅을 진행하기에 용이한 장점이 있지만 굴절율, 투과율 등의 광학적 특성이 낮아 사용에 제한이 있다. 이러한 점을 미루어 보면 본 발명인 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물에는 고굴절 특성 물질로 지르코니아 아크릴 모노머 졸과 플루오렌계 디아크릴레이트를 같이 사용하여야 하며, 골굴곡 특성 물질로 Urethane-acrylic ester co-polymer와 저점도 특성 물질로 아크릴레이트 모노머를 같이 사용하여야 고굴절, 고굴곡 및 저점도 특성이 독립적으로 동시에 발현될 수 있다는 점이 명백하다.According to Table 2, Comparative Example 1 was composed of 1,1'-methylenebis [4-isocyana tocyclohexane] and alpha, alpha', alpha “-1,2,3-propanetriltris [omega-hydroxypoly. (2-Propenoic acid, 2-hydroxyethyl ester, polymer with 1,1'-methylenebis(4-isocyanatocyclohexane) and alpha,alpha',alpha''-1,2,3-propanetriyltris(omega-hydroxypoly(oxy(methyl-1,2-ethanediyl)))) (high bending properties) A sample with a high content of bending properties. is excellent, but has the problem of low optical properties such as refractive index and transmittance, and in Comparative Example 2, 9,9-Bis[4-(2-acryloyloxyethyloxy)phenyl]fluorene (high refractive properties) was used instead of zirconia acrylic monomer sol (high refractive properties). ) was used to improve the refractive index and transmittance to some extent, but the viscosity was too high, making it difficult to coat using the inkjet method. In addition, in the case of Comparative Example 3, 2-(o-Phenylphenoxy) ethyl acrylate (low viscosity characteristics) , 2-(2-ethenoxyethoxy)ethyl prop-2-enoate (low viscosity characteristics) and Benzyl methacrylate (low viscosity characteristics) are used in large quantities, which has the advantage of being very low in viscosity, making it easy to coat using the inkjet method, but the refractive index , there are limitations in its use due to low optical properties such as transmittance, etc. In view of these points, the coating composition with high refraction, high bending and low viscosity properties for a foldable smartphone of the present invention contains zirconia acrylic monomer sol and fluorene-based diacrylic as materials with high refractive properties. It is clear that high refraction, high bending, and low viscosity properties can be expressed independently and simultaneously only when both rates must be used together, and urethane-acrylic ester co-polymer as a material with bone bending properties and acrylate monomer as a material with low viscosity properties must be used together. do.
표 3은 본 발명인 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물의 실시예 1-9 및 비교예 1-3의 코팅조성물이 코팅된 필름시편에 대해 필름 굴절율을 측정한 결과를 나타낸 표이다. Table 3 shows the results of measuring the film refractive index of film specimens coated with the coating compositions of Examples 1-9 and Comparative Examples 1-3 of the coating composition with high refractive index, high bending, and low viscosity characteristics for a foldable smartphone of the present invention. am.
(550nm)film refractive index
(550 nm)
상기 표 3에 의하면 비교예 1은 1,1'-메틸렌비스 [4-이소시아나 토시클로헥산]과 알파, 알파', 알파“-1,2,3-프로판트릴트리스[오메가-히드록시폴리(옥시(메틸-1,2-에탄딜)]]의 2-히드록시에틸 2-프로펜산 중합체(2-Propenoic acid, 2-hydroxyethyl ester, polymer with 1,1'-methylenebis(4-isocyanatocyclohexane) and alpha,alpha',alpha''-1,2,3-propanetriyltris(omega-hydroxypoly(oxy(methyl-1,2-ethanediyl))))(고굴곡 특성) 물질 함량이 높은 샘플로써 필름 굴절율이 낮아 광학특성이 떨어지는 문제가 있고, 비교예 2의 경우 지르코니아 아크릴 모노머 졸(고굴절 특성) 대신에 9,9-Bis[4-(2-acryloyloxyethyloxy)phenyl]fluorene(고굴절 특성)을 사용하여 필름 굴절율을 어느 정도 보완하였지만 여전히 지르코니아 아크릴 모노머 졸(고굴절 특성)을 함유하는 샘플보다는 필름 굴절율이 떨어지는 문제가 존재하며, 비교예 3의 경우 2-(o-Phenylphenoxy) ethyl acrylate(저점도 특성), 2-(2-ethenoxyethoxy)ethyl prop-2-enoate(저점도 특성) 및 Benzyl methacrylate(저점도 특성)을 다량으로 사용하여 필름 굴절율이 매우 낮고 광학적 특성이 떨어지는 문제가 존재한다. According to Table 3, Comparative Example 1 was composed of 1,1'-methylenebis [4-isocyana tocyclohexane] and alpha, alpha', alpha “-1,2,3-propanetriltris [omega-hydroxypoly. (2-Propenoic acid, 2-hydroxyethyl ester, polymer with 1,1'-methylenebis(4-isocyanatocyclohexane) and alpha,alpha',alpha''-1,2,3-propanetriyltris(omega-hydroxypoly(oxy(methyl-1,2-ethanediyl)))) (high bending properties) This is a sample with a high material content and has a low film refractive index for optical There is a problem with poor properties, and in Comparative Example 2, 9,9-Bis[4-(2-acryloyloxyethyloxy)phenyl]fluorene (high refractive properties) was used instead of zirconia acrylic monomer sol (high refractive properties) to increase the film refractive index to some extent. Although supplemented, there is still a problem that the film refractive index is lower than the sample containing zirconia acrylic monomer sol (high refractive properties). In the case of Comparative Example 3, 2-(o-Phenylphenoxy) ethyl acrylate (low viscosity properties), 2-(2- There is a problem of very low film refractive index and poor optical properties due to the use of large amounts of ethenoxyethoxy)ethyl prop-2-enoate (low viscosity characteristics) and Benzyl methacrylate (low viscosity characteristics).
이상에서 살펴본 바와 같이 본 발명인 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물은 고굴절 특성 물질로 지르코니아 아크릴 모노머 졸(고굴절 특성)과 9,9-Bis[4-(2-acryloyloxyethyloxy)phenyl]fluorene을 포함하여 높은 액상 굴절율과 필름 굴절율을 나타냈으며, 고굴곡 특성 물질로 1,1'-메틸렌비스 [4-이소시아나 토시클로헥산]과 알파, 알파', 알파“-1,2,3-프로판트릴트리스[오메가-히드록시폴리(옥시(메틸-1,2-에탄딜)]]의 2-히드록시에틸 2-프로펜산 중합체(2-Propenoic acid, 2-hydroxyethyl ester, polymer with 1,1'-methylenebis(4-isocyanatocyclohexane) and alpha,alpha',alpha''-1,2,3-propanetriyltris(omega-hydroxypoly(oxy(methyl-1,2-ethanediyl))))을 포함하여 Folding test에서 20만회를 통과하였고, 저점도 특성 물질로 2-(o-Phenylphenoxy) ethyl acrylate, 2-(2-ethenoxyethoxy)ethyl prop-2-enoate 및 Benzyl methacrylate를 포함하여 350cps 이하의 낮은 점도를 나타내고 잉크젯 방식으로 코팅을 진행할 수 있었다.As discussed above, the high refractive index, high bending, and low viscosity coating composition for a foldable smartphone according to the present invention includes zirconia acrylic monomer sol (high refractive properties) and 9,9-Bis[4-(2-acryloyloxyethyloxy)phenyl] as high refractive materials. It exhibits high liquid refractive index and film refractive index including fluorene, and materials with high bending properties include 1,1'-methylenebis [4-isocyanate tocyclohexane] and alpha, alpha', alpha“-1,2,3 -2-Hydroxyethyl 2-propenoic acid polymer (2-Propenoic acid, 2-hydroxyethyl ester, polymer with 1, Folding test, including 1'-methylenebis(4-isocyanatocyclohexane) and alpha,alpha',alpha''-1,2,3-propanetriyltris(omega-hydroxypoly(oxy(methyl-1,2-ethanediyl)))) It has passed 200,000 times, and includes 2-(o-Phenylphenoxy) ethyl acrylate, 2-(2-ethenoxyethoxy)ethyl prop-2-enoate, and Benzyl methacrylate as low-viscosity materials, showing a low viscosity of less than 350 cps and using an inkjet method. Coating was able to proceed.
이상에서는 본 발명의 바람직한 실시예 및 비교예에 대하여 도시하고 설명하였지만, 본 발명은 상술한 특정의 실시예 및 비교예에 한정되지 아니하며, 청구범위에서 청구하는 본 발명의 요지를 벗어남이 없이 당해 발명이 속하는 기술분야에서 통상의 지식을 가진자에 의해 변형실시 또는 추가실시가 가능한 것은 물론이고, 이러한 변형실시 또는 추가실시들은 본 발명의 기술적 사상이나 전망으로부터 개별적으로 이해되어져서는 안될 것이다. In the above, preferred examples and comparative examples of the present invention have been shown and described, but the present invention is not limited to the specific examples and comparative examples described above, and the present invention is not limited to the gist of the present invention as claimed in the claims. Of course, modifications or additional implementations may be possible by those skilled in the art, and such modifications or additional implementations should not be understood individually from the technical idea or perspective of the present invention.
Claims (13)
고굴곡 특성 물질로 우레탄-아크릴릭 에스테르 공중합체 (Urethane-acrylic ester co-polymer);를 포함하며,
저점도 특성 물질로 아크릴레이트 모노머;를 포함하며,
상기 우레탄-아크릴릭 에스테르 공중합체 (Urethane-acrylic ester co-polymer)는 1,1'-메틸렌비스 [4-이소시아나 토시클로헥산]과 알파, 알파', 알파“-1,2,3-프로판트릴트리스[오메가-히드록시폴리(옥시(메틸-1,2-에탄딜)]]의 2-히드록시에틸 2-프로펜산 중합체(2-Propenoic acid, 2-hydroxyethyl ester, polymer with 1,1'-methylenebis(4-isocyanatocyclohexane) and alpha,alpha',alpha''-1,2,3-propanetriyltris(omega-hydroxypoly(oxy(methyl-1,2-ethanediyl))))인 것을 특징으로 하는 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물.
Materials with high refractive properties include zirconia acrylic monomer sol and fluorene-based diacrylate;
High-flexibility materials include urethane-acrylic ester co-polymer;
It contains acrylate monomer as a low-viscosity material,
The urethane-acrylic ester co-polymer is 1,1'-methylenebis [4-isocyanate tocyclohexane] and alpha, alpha', alpha “-1,2,3-propane. 2-Propenoic acid, 2-hydroxyethyl ester, polymer with 1,1' of Triltris [omega-hydroxypoly(oxy(methyl-1,2-ethandyl)]] Foldable smart device characterized by -methylenebis(4-isocyanatocyclohexane) and alpha,alpha',alpha''-1,2,3-propanetriyltris(omega-hydroxypoly(oxy(methyl-1,2-ethanediyl)))) A coating composition with high refraction, high bending and low viscosity properties for phones.
상기 코팅조성물은 광경화용 개시제;와 레벨링제;를 추가로 포함하는 것을 특징으로 하는 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물.
According to paragraph 1,
The coating composition is a coating composition with high refraction, high bending and low viscosity characteristics for a foldable smartphone, characterized in that it further comprises a photocuring initiator and a leveling agent.
상기 고굴절 특성 물질로 지르코니아 아크릴 모노머 졸 25-84 중량부와 플루오렌계 디아크릴레이트 2-12 중량부를 포함하며,
상기 고굴곡 특성 물질로 우레탄 아크릴릭 에스테르 공중합체 (Urethane-acrylic ester co-polymer) 2-12 중량부를 포함하며,
상기 저점도 특성 물질로 아크릴레이트 모노머 10-60 중량부를 포함하는 것을 특징으로 하는 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물.
According to paragraph 1,
The high refractive index material includes 25-84 parts by weight of zirconia acrylic monomer sol and 2-12 parts by weight of fluorene-based diacrylate,
The high-flexibility material includes 2-12 parts by weight of urethane-acrylic ester co-polymer,
A coating composition with high refraction, high bending and low viscosity properties for a foldable smartphone, characterized in that it contains 10-60 parts by weight of acrylate monomer as the low viscosity material.
상기 코팅조성물은 상기 광경화용 개시제 2-4 중량부와 상기 레벨링제 0.05-0.15 중량부를 추가로 포함하는 것을 특징으로 하는 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물.
According to paragraph 2,
The coating composition is a coating composition with high refractive index, high bending and low viscosity characteristics for a foldable smartphone, characterized in that it further comprises 2-4 parts by weight of the photocuring initiator and 0.05-0.15 parts by weight of the leveling agent.
상기 광경화용 개시제는 2-히드록시-2-메틸프로피오페논 (2-Hydroxy-2-methylpropiophenone), 디페닐 (2,4,6-트리메틸벤조일)포스핀 옥사이드 (Diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide) 또는 페닐비스(2,4,6-트리메틸벤조일)포스핀 옥사이드 (Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide) 중 어느 하나 이상을 포함하며, 상기 레벨링제는 실록산과 실리콘, 다이메틸, 3-하이드록시프로필 메틸, 폴리에틸렌폴리프로필렌 글리콜 모노메틸 에테르의 에테르(Siloxanes and Silicones, di-Me, 3-hydroxypropyl Me, ethers with polyethylene-polypropylene glycol mono-Me ether)인 것을 특징으로 하는 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물.
According to paragraph 2,
The photocuring initiator is 2-Hydroxy-2-methylpropiophenone, diphenyl (2,4,6-trimethylbenzoyl) phosphine oxide (Diphenyl (2,4,6- trimethylbenzoyl)phosphine oxide) or phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide, and the leveling agent is siloxane and silicone. , dimethyl, 3-hydroxypropyl methyl, polyethylene polypropylene glycol monomethyl ether (Siloxanes and Silicones, di-Me, 3-hydroxypropyl Me, ethers with polyethylene-polypropylene glycol mono-Me ether). A coating composition with high refraction, high bending, and low viscosity properties for a foldable smartphone.
상기 지르코니아 아크릴 모노머 졸은 지르코늄 디옥사이드 (Zirconium dioxide(ZrO2))와 아크릴 모노머가 실란커플링제에 의해 표면처리되어 있는 것을 특징으로 하는 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물.
According to paragraph 1,
The zirconia acrylic monomer sol is a coating composition with high refraction, high bending and low viscosity characteristics for a foldable smartphone, characterized in that zirconium dioxide (ZrO 2 ) and an acrylic monomer are surface treated with a silane coupling agent.
상기 지르코니아 아크릴 모노머 졸은 상기 지르코늄 디옥사이드 (Zirconium dioxide(ZrO2)) 30-50 중량부, 상기 아크릴 모노머 50-70 중량부와 상기 실란커플링제 2-5 중량부를 포함하고 있는 것을 특징으로 하는 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물.
According to clause 6,
The zirconia acrylic monomer sol is a foldable product comprising 30-50 parts by weight of the zirconium dioxide (ZrO 2 ), 50-70 parts by weight of the acrylic monomer, and 2-5 parts by weight of the silane coupling agent. A coating composition with high refraction, high bending, and low viscosity properties for smartphones.
상기 아크릴 모노머는 비스페놀플로렌디아크릴레이트, 바이페닐메틸아크릴레이트, 벤질아크릴레이트, 벤질메타크릴레이트, 페닐아크릴레이트, 디페닐아크릴레이트, 바이페닐아크릴레이트, 2-바이페닐릴아크릴레이트, 바이페닐메틸아크릴레이트, 2-([1,1'-바이페닐]-2-릴옥시)에틸아크릴레이트, 페녹시벤질아크릴레이트, 3-페녹시벤질-3-(1-나프틸)아크릴레이트, 에틸(2E)-3-히드록시-2-(3-페녹시벤질)아크릴레이트, 페닐메타크릴레이트, 바이페닐메타크릴레이트, 2-니트로페닐아크릴레이트, 4-니트로페닐아크릴레이트 또는 2-니트로페닐메타크릴레이트 중 어느 하나 이상을 포함하고 있는 것을 특징으로 하는 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물.
According to clause 6,
The acrylic monomers include bisphenol florene diacrylate, biphenylmethyl acrylate, benzyl acrylate, benzyl methacrylate, phenyl acrylate, diphenyl acrylate, biphenyl acrylate, 2-biphenylyl acrylate, and biphenyl. Methyl acrylate, 2-([1,1'-biphenyl]-2-ryloxy)ethyl acrylate, phenoxybenzyl acrylate, 3-phenoxybenzyl-3-(1-naphthyl)acrylate, ethyl (2E)-3-hydroxy-2-(3-phenoxybenzyl)acrylate, phenyl methacrylate, biphenyl methacrylate, 2-nitropheny acrylate, 4-nitropheny acrylate or 2-nitrophenyl A coating composition with high refractive index, high bending and low viscosity characteristics for a foldable smartphone, characterized in that it contains at least one of methacrylates.
상기 실란커플링제는 폴리디메틸 실란, 프로필트리메톡시실란하이드로클로라이드, 에폭시실란, 메타크릴실란, 알킬실란, 페닐실란, 페닐트리메톡시실란, 페닐트리클로로실란, 클로로실란, 페닐클로로실란, 디클로로페닐실란, 디메톡시메틸페닐실란, 페닐트리메톡시실란, 디페닐디메톡시실란, 디에톡시디페닐실란, 메틸페닐디에톡시실란, 메틸페닐디클로로실란 또는 페녹시트리메틸실란 중 어느 하나 이상을 포함하고 있는 것을 특징으로 하는 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물.
According to clause 6,
The silane coupling agent includes polydimethyl silane, propyltrimethoxysilane hydrochloride, epoxysilane, methacrylsilane, alkylsilane, phenylsilane, phenyltrimethoxysilane, phenyltrichlorosilane, chlorosilane, phenylchlorosilane, and dichlorophenyl. Characterized in that it contains at least one of silane, dimethoxymethylphenylsilane, phenyltrimethoxysilane, diphenyldimethoxysilane, diethoxydiphenylsilane, methylphenyldiethoxysilane, methylphenyldichlorosilane, or phenoxytrimethylsilane. A coating composition with high refraction, high bending, and low viscosity properties for a foldable smartphone.
상기 플루오렌계 디아크릴레이트는 9,9-비스[4-(2-아크릴로일옥시에틸옥시)페닐]플루오렌 (9,9-Bis[4-(2-acryloyloxyethyloxy)phenyl]fluorene)인 것을 특징으로 하는 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물.
According to paragraph 1,
The fluorene-based diacrylate is 9,9-bis[4-(2-acryloyloxyethyloxy)phenyl]fluorene (9,9-Bis[4-(2-acryloyloxyethyloxy)phenyl]fluorene) A coating composition featuring high refraction, high bending, and low viscosity for a foldable smartphone.
상기 아크릴레이트 모노머는 2-(o-페닐페녹시) 에틸 아크릴레이트 (2-(o-Phenylphenoxy) ethyl acrylate), 2-(2-에텐옥시에톡시)에틸 프로프-2-에노에이트) (2-(2-ethenoxyethoxy)ethyl prop-2-enoate) 또는 Benzyl methacrylate (벤질 메트아크릴레이트) 중 어느 하나 이상을 포함하고 있는 것을 특징으로 하는 폴더블 스마트폰용 고굴절, 고굴곡 및 저점도 특성 코팅조성물.
According to paragraph 1,
The acrylate monomer is 2-(o-phenylphenoxy) ethyl acrylate (2-(o-Phenylphenoxy) ethyl acrylate), 2-(2-etheneoxyethoxy)ethyl prop-2-enoate) (2) A coating composition with high refraction, high bending and low viscosity characteristics for a foldable smartphone, characterized in that it contains at least one of -(2-ethenoxyethoxy)ethyl prop-2-enoate) or Benzyl methacrylate.
A window member comprising a coating layer coated with the coating composition having high refractive index, high bending, and low viscosity characteristics for a foldable smartphone according to any one of claims 1 to 10 or 12.
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|---|---|---|---|---|
| KR20160106889A (en) | 2015-03-03 | 2016-09-13 | (주)에스앤케이 | Transparent Plastic Film for Display and Method of Preparing thereof |
| KR101748025B1 (en) * | 2015-05-27 | 2017-06-16 | 주식회사 앰트 | High reflective organic-inorganic hybrid coating composition and its manufacturing method for prism film using soft mold |
| KR101991995B1 (en) * | 2016-08-11 | 2019-06-21 | 삼성에스디아이 주식회사 | Protective film for window film, optical member comprising the same and display apparatus comprising the same |
-
2020
- 2020-12-30 KR KR1020200187362A patent/KR102581152B1/en active IP Right Grant
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| KR20220095647A (en) | 2022-07-07 |
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