WO2022131319A1 - 接着性粒子、接着剤及び調光積層体 - Google Patents
接着性粒子、接着剤及び調光積層体 Download PDFInfo
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- WO2022131319A1 WO2022131319A1 PCT/JP2021/046441 JP2021046441W WO2022131319A1 WO 2022131319 A1 WO2022131319 A1 WO 2022131319A1 JP 2021046441 W JP2021046441 W JP 2021046441W WO 2022131319 A1 WO2022131319 A1 WO 2022131319A1
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- 235000010724 Wisteria floribunda Nutrition 0.000 description 1
- JOBBTVPTPXRUBP-UHFFFAOYSA-N [3-(3-sulfanylpropanoyloxy)-2,2-bis(3-sulfanylpropanoyloxymethyl)propyl] 3-sulfanylpropanoate Chemical compound SCCC(=O)OCC(COC(=O)CCS)(COC(=O)CCS)COC(=O)CCS JOBBTVPTPXRUBP-UHFFFAOYSA-N 0.000 description 1
- AATODONPOVNXKH-UHFFFAOYSA-N [4-(hydroxymethyl)-2-(4-methylphenyl)-1h-imidazol-5-yl]methanol Chemical compound C1=CC(C)=CC=C1C1=NC(CO)=C(CO)N1 AATODONPOVNXKH-UHFFFAOYSA-N 0.000 description 1
- UUQQGGWZVKUCBD-UHFFFAOYSA-N [4-(hydroxymethyl)-2-phenyl-1h-imidazol-5-yl]methanol Chemical compound N1C(CO)=C(CO)N=C1C1=CC=CC=C1 UUQQGGWZVKUCBD-UHFFFAOYSA-N 0.000 description 1
- GXDVEXJTVGRLNW-UHFFFAOYSA-N [Cr].[Cu] Chemical compound [Cr].[Cu] GXDVEXJTVGRLNW-UHFFFAOYSA-N 0.000 description 1
- 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 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- IKHGUXGNUITLKF-XPULMUKRSA-N acetaldehyde Chemical compound [14CH]([14CH3])=O IKHGUXGNUITLKF-XPULMUKRSA-N 0.000 description 1
- 229920001893 acrylonitrile styrene Polymers 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- ORILYTVJVMAKLC-UHFFFAOYSA-N adamantane Chemical group C1C(C2)CC3CC1CC2C3 ORILYTVJVMAKLC-UHFFFAOYSA-N 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- IBVAQQYNSHJXBV-UHFFFAOYSA-N adipic acid dihydrazide Chemical compound NNC(=O)CCCCC(=O)NN IBVAQQYNSHJXBV-UHFFFAOYSA-N 0.000 description 1
- GZCGUPFRVQAUEE-SLPGGIOYSA-N aldehydo-D-glucose Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C=O GZCGUPFRVQAUEE-SLPGGIOYSA-N 0.000 description 1
- 125000003342 alkenyl group Chemical group 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- BTBJBAZGXNKLQC-UHFFFAOYSA-N ammonium lauryl sulfate Chemical compound [NH4+].CCCCCCCCCCCCOS([O-])(=O)=O BTBJBAZGXNKLQC-UHFFFAOYSA-N 0.000 description 1
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 description 1
- 239000012935 ammoniumperoxodisulfate Substances 0.000 description 1
- 150000008064 anhydrides Chemical class 0.000 description 1
- 125000002490 anilino group Chemical group [H]N(*)C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 description 1
- 239000001000 anthraquinone dye Substances 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 125000005337 azoxy group Chemical group [N+]([O-])(=N*)* 0.000 description 1
- GAUZCKBSTZFWCT-UHFFFAOYSA-N azoxybenzene Chemical compound C=1C=CC=CC=1[N+]([O-])=NC1=CC=CC=C1 GAUZCKBSTZFWCT-UHFFFAOYSA-N 0.000 description 1
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 description 1
- 229910002113 barium titanate Inorganic materials 0.000 description 1
- 239000000981 basic dye Substances 0.000 description 1
- 235000010233 benzoic acid Nutrition 0.000 description 1
- 125000000649 benzylidene group Chemical group [H]C(=[*])C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 description 1
- 230000001588 bifunctional effect Effects 0.000 description 1
- 239000004067 bulking agent Substances 0.000 description 1
- ZXYULJCZWBKBCX-UHFFFAOYSA-N but-1-enyl(diethoxy)silane Chemical compound C(C)C=C[SiH](OCC)OCC ZXYULJCZWBKBCX-UHFFFAOYSA-N 0.000 description 1
- LKZYQDVVGTXQTR-UHFFFAOYSA-N but-1-enyl(dimethoxy)silane Chemical compound CCC=C[SiH](OC)OC LKZYQDVVGTXQTR-UHFFFAOYSA-N 0.000 description 1
- 235000019437 butane-1,3-diol Nutrition 0.000 description 1
- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 150000004651 carbonic acid esters Chemical class 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 150000001841 cholesterols Chemical class 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- XUZDJUDKWXESQE-UHFFFAOYSA-N chromium copper zinc Chemical compound [Cr].[Zn].[Cu] XUZDJUDKWXESQE-UHFFFAOYSA-N 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 229920006037 cross link polymer Polymers 0.000 description 1
- IGARGHRYKHJQSM-UHFFFAOYSA-N cyclohexylbenzene Chemical compound C1CCCCC1C1=CC=CC=C1 IGARGHRYKHJQSM-UHFFFAOYSA-N 0.000 description 1
- YQLZOAVZWJBZSY-UHFFFAOYSA-N decane-1,10-diamine Chemical compound NCCCCCCCCCCN YQLZOAVZWJBZSY-UHFFFAOYSA-N 0.000 description 1
- 150000001990 dicarboxylic acid derivatives Chemical class 0.000 description 1
- JJQZDUKDJDQPMQ-UHFFFAOYSA-N dimethoxy(dimethyl)silane Chemical compound CO[Si](C)(C)OC JJQZDUKDJDQPMQ-UHFFFAOYSA-N 0.000 description 1
- 239000000982 direct dye Substances 0.000 description 1
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 1
- 239000000986 disperse dye Substances 0.000 description 1
- 238000012674 dispersion polymerization Methods 0.000 description 1
- 210000001951 dura mater Anatomy 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 229920006241 epoxy vinyl ester resin Polymers 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- BITPLIXHRASDQB-UHFFFAOYSA-N ethenyl-[ethenyl(dimethyl)silyl]oxy-dimethylsilane Chemical compound C=C[Si](C)(C)O[Si](C)(C)C=C BITPLIXHRASDQB-UHFFFAOYSA-N 0.000 description 1
- IRTACFOVZDBFEX-UHFFFAOYSA-N ethenyl-diethoxy-ethylsilane Chemical compound CCO[Si](CC)(C=C)OCC IRTACFOVZDBFEX-UHFFFAOYSA-N 0.000 description 1
- SRBCBSYCBSCLTO-UHFFFAOYSA-N ethenyl-ethyl-dimethoxysilane Chemical compound CC[Si](OC)(OC)C=C SRBCBSYCBSCLTO-UHFFFAOYSA-N 0.000 description 1
- IIEWJVIFRVWJOD-UHFFFAOYSA-N ethylcyclohexane Chemical compound CCC1CCCCC1 IIEWJVIFRVWJOD-UHFFFAOYSA-N 0.000 description 1
- 125000003916 ethylene diamine group Chemical group 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000000989 food dye Substances 0.000 description 1
- IVJISJACKSSFGE-UHFFFAOYSA-N formaldehyde;1,3,5-triazine-2,4,6-triamine Chemical compound O=C.NC1=NC(N)=NC(N)=N1 IVJISJACKSSFGE-UHFFFAOYSA-N 0.000 description 1
- MSYLJRIXVZCQHW-UHFFFAOYSA-N formaldehyde;6-phenyl-1,3,5-triazine-2,4-diamine Chemical compound O=C.NC1=NC(N)=NC(C=2C=CC=CC=2)=N1 MSYLJRIXVZCQHW-UHFFFAOYSA-N 0.000 description 1
- 239000001530 fumaric acid Substances 0.000 description 1
- ANSXAPJVJOKRDJ-UHFFFAOYSA-N furo[3,4-f][2]benzofuran-1,3,5,7-tetrone Chemical compound C1=C2C(=O)OC(=O)C2=CC2=C1C(=O)OC2=O ANSXAPJVJOKRDJ-UHFFFAOYSA-N 0.000 description 1
- 239000008273 gelatin Substances 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 235000011852 gelatine desserts Nutrition 0.000 description 1
- VANNPISTIUFMLH-UHFFFAOYSA-N glutaric anhydride Chemical compound O=C1CCCC(=O)O1 VANNPISTIUFMLH-UHFFFAOYSA-N 0.000 description 1
- 150000002334 glycols Chemical class 0.000 description 1
- 229940015043 glyoxal Drugs 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000013007 heat curing Methods 0.000 description 1
- 239000012760 heat stabilizer Substances 0.000 description 1
- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical compound OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 125000004029 hydroxymethyl group Chemical group [H]OC([H])([H])* 0.000 description 1
- 229940097275 indigo Drugs 0.000 description 1
- COHYTHOBJLSHDF-UHFFFAOYSA-N indigo powder Natural products N1C2=CC=CC=C2C(=O)C1=C1C(=O)C2=CC=CC=C2N1 COHYTHOBJLSHDF-UHFFFAOYSA-N 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 238000012690 ionic polymerization Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000006233 lamp black Substances 0.000 description 1
- 239000004611 light stabiliser Substances 0.000 description 1
- 238000010550 living polymerization reaction Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000001755 magnetron sputter deposition Methods 0.000 description 1
- 230000010534 mechanism of action Effects 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- LVWZTYCIRDMTEY-UHFFFAOYSA-N metamizole Chemical compound O=C1C(N(CS(O)(=O)=O)C)=C(C)N(C)N1C1=CC=CC=C1 LVWZTYCIRDMTEY-UHFFFAOYSA-N 0.000 description 1
- 125000005395 methacrylic acid group Chemical group 0.000 description 1
- NTNWKDHZTDQSST-UHFFFAOYSA-N naphthalene-1,2-diamine Chemical compound C1=CC=CC2=C(N)C(N)=CC=C21 NTNWKDHZTDQSST-UHFFFAOYSA-N 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- DGBWPZSGHAXYGK-UHFFFAOYSA-N perinone Chemical compound C12=NC3=CC=CC=C3N2C(=O)C2=CC=C3C4=C2C1=CC=C4C(=O)N1C2=CC=CC=C2N=C13 DGBWPZSGHAXYGK-UHFFFAOYSA-N 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229950000688 phenothiazine Drugs 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 150000003021 phthalic acid derivatives Chemical class 0.000 description 1
- 239000001007 phthalocyanine dye Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920001467 poly(styrenesulfonates) Polymers 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 229920002312 polyamide-imide Polymers 0.000 description 1
- 229920000767 polyaniline Polymers 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 238000012643 polycondensation polymerization Methods 0.000 description 1
- 125000003367 polycyclic group Chemical group 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920006393 polyether sulfone Polymers 0.000 description 1
- 229920002530 polyetherether ketone Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000004848 polyfunctional curative Substances 0.000 description 1
- 239000009719 polyimide resin Substances 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000002685 polymerization catalyst Substances 0.000 description 1
- 239000003505 polymerization initiator Substances 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 229920006380 polyphenylene oxide Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229960002796 polystyrene sulfonate Drugs 0.000 description 1
- 239000011970 polystyrene sulfonate Substances 0.000 description 1
- 229920000346 polystyrene-polyisoprene block-polystyrene Polymers 0.000 description 1
- 229920006295 polythiol Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000005033 polyvinylidene chloride Substances 0.000 description 1
- SCUZVMOVTVSBLE-UHFFFAOYSA-N prop-2-enenitrile;styrene Chemical compound C=CC#N.C=CC1=CC=CC=C1 SCUZVMOVTVSBLE-UHFFFAOYSA-N 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- WGYKZJWCGVVSQN-UHFFFAOYSA-N propylamine Chemical group CCCN WGYKZJWCGVVSQN-UHFFFAOYSA-N 0.000 description 1
- MCSKRVKAXABJLX-UHFFFAOYSA-N pyrazolo[3,4-d]triazole Chemical compound N1=NN=C2N=NC=C21 MCSKRVKAXABJLX-UHFFFAOYSA-N 0.000 description 1
- IZMJMCDDWKSTTK-UHFFFAOYSA-N quinoline yellow Chemical compound C1=CC=CC2=NC(C3C(C4=CC=CC=C4C3=O)=O)=CC=C21 IZMJMCDDWKSTTK-UHFFFAOYSA-N 0.000 description 1
- 239000007870 radical polymerization initiator Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 150000003377 silicon compounds Chemical class 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- XFTALRAZSCGSKN-UHFFFAOYSA-M sodium;4-ethenylbenzenesulfonate Chemical compound [Na+].[O-]S(=O)(=O)C1=CC=C(C=C)C=C1 XFTALRAZSCGSKN-UHFFFAOYSA-M 0.000 description 1
- 238000003980 solgel method Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 150000003431 steroids Chemical class 0.000 description 1
- 235000021286 stilbenes Nutrition 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 229920006132 styrene block copolymer Polymers 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 229940014800 succinic anhydride Drugs 0.000 description 1
- 150000003457 sulfones Chemical group 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 238000010557 suspension polymerization reaction Methods 0.000 description 1
- 125000005425 toluyl group Chemical group 0.000 description 1
- 239000005341 toughened glass Substances 0.000 description 1
- PJANXHGTPQOBST-VAWYXSNFSA-N trans-stilbene Chemical compound C=1C=CC=CC=1/C=C/C1=CC=CC=C1 PJANXHGTPQOBST-VAWYXSNFSA-N 0.000 description 1
- 239000001003 triarylmethane dye Substances 0.000 description 1
- 150000003918 triazines Chemical class 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- CIGLHMQJIHXLPV-UHFFFAOYSA-N triethoxy(3-methoxypropyl)silane Chemical compound CCO[Si](OCC)(OCC)CCCOC CIGLHMQJIHXLPV-UHFFFAOYSA-N 0.000 description 1
- SRPWOOOHEPICQU-UHFFFAOYSA-N trimellitic anhydride Chemical compound OC(=O)C1=CC=C2C(=O)OC(=O)C2=C1 SRPWOOOHEPICQU-UHFFFAOYSA-N 0.000 description 1
- AAAQKTZKLRYKHR-UHFFFAOYSA-N triphenylmethane Chemical compound C1=CC=CC=C1C(C=1C=CC=CC=1)C1=CC=CC=C1 AAAQKTZKLRYKHR-UHFFFAOYSA-N 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/38—Layered products comprising a layer of synthetic resin comprising epoxy resins
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J163/00—Adhesives based on epoxy resins; Adhesives based on derivatives of epoxy resins
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J201/00—Adhesives based on unspecified macromolecular compounds
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
Definitions
- the present invention relates to adhesive particles.
- the present invention also relates to an adhesive and a dimming laminate using the adhesive particles.
- Dimming materials such as dimming glass and dimming film may be used for display devices such as liquid crystal displays and in-vehicle displays.
- the dimming material has a property that the light transmittance changes depending on the presence or absence of application of an electric field, and the amount of incident light can be adjusted.
- the liquid crystal display element is configured by arranging a liquid crystal between two glass or film substrates.
- an adhesive is used to bond two glass or film substrates together.
- particles having adhesiveness may be contained in the adhesive. Further, the particles may be colored dark in order to prevent light from passing through the particles in the adhesive.
- Patent Document 1 discloses particles having a base particle and a covering portion arranged on the surface of the base particle.
- the base particles contain a colorant
- the material of the coating portion is a compound having a specific structure.
- Patent Document 1 describes a thermoplastic resin as a material for the covering portion.
- thermoplastic resin in the coating layer may melt during heating to cause dripping, resulting in a decrease in adhesiveness. Further, when dripping occurs, when the liquid crystal display element is turned on, a phenomenon (light omission) in which the light from the backlight passes through the melted resin portion may occur. There is a problem that the contrast of the liquid crystal display element is lowered or the display quality is lowered, which is called a white spot, due to the light leakage.
- the base particle is provided with a base particle and a coating portion arranged on the surface of the base particle, the base particle is a black particle, and the coating portion is thermosetting. Adhesive particles containing the resin are provided.
- the ratio of the thickness of the covering portion to the particle diameter of the adhesive particles exceeds 0.01.
- thermosetting resin is an epoxy resin
- coating portion contains an amine curing agent
- the 10% K value of the base particles is 10 N / mm 2 or more and 7000 N / mm 2 or less.
- an adhesive containing the above-mentioned adhesive particles and a binder is provided.
- the dimming layer comprises a first substrate, a second substrate, and a dimming layer arranged between the first substrate and the second substrate.
- a dimming laminate is provided in which the material of the above contains the adhesive particles described above.
- the adhesive particles according to the present invention include base particles and a coating portion arranged on the surface of the base material particles, the base material particles are black particles, and the coating portion is thermosetting. Contains resin. Since the adhesive particles according to the present invention have the above-mentioned structure, it is possible to suppress dripping during heating, improve the adhesiveness, and suppress the occurrence of light leakage. can.
- FIG. 1 is a cross-sectional view showing adhesive particles according to the first embodiment of the present invention.
- FIG. 2 is a cross-sectional view showing an example of a PDLC-type dimming laminate using adhesive particles according to the first embodiment of the present invention.
- FIG. 3 is a cross-sectional view showing an example of an SPD-type dimming laminate using adhesive particles according to the first embodiment of the present invention.
- the adhesive particles according to the present invention include base particles and a covering portion arranged on the surface of the base particles.
- the base particles are black particles.
- the covering portion contains a thermosetting resin.
- the thickness of the covering portion can be sufficiently secured, and as a result, the adhesiveness can be sufficiently enhanced.
- the adhesiveness of the adhesive containing the adhesive particles according to the present invention can be enhanced. Adhesion can be performed by thermally curing the thermosetting resin. In addition, dripping during heating can be suppressed. As a result, the adhesiveness can be further enhanced and the occurrence of light leakage can be suppressed. In addition, contamination due to dripping can be prevented. By suppressing the occurrence of light leakage, it is possible to prevent a decrease in contrast of the liquid crystal display element and prevent a decrease in display quality.
- the adhesive particles can be suitably used as an adhesive. Further, the adhesive particles can be used for a light control material, a light control layer and a light control laminate. The adhesive particles may be used as a spacer for a light control glass or a spacer for a light control film. The adhesive particles may be adhesive particles for a dimming laminate.
- the shape of the adhesive particles is not particularly limited.
- the shape of the adhesive particles may be spherical, non-spherical, flat or the like.
- the spherical shape is not limited to a true spherical shape, but also includes a substantially spherical shape, and includes, for example, a shape having an aspect ratio (major diameter / minor diameter) of 1.5 or less.
- FIG. 1 is a cross-sectional view showing adhesive particles according to the first embodiment of the present invention.
- the adhesive particle 1 shown in FIG. 1 includes a base particle 2 and a covering portion 3 arranged on the surface of the base particle 2.
- the covering portion 3 is in contact with the surface of the base particle 2 and covers the surface of the base particle 2.
- the adhesive particles 1 are coated particles in which the surface of the base particles 2 is coated with the coating portion 3.
- the base particles 2 are black particles.
- the covering portion 3 contains a thermosetting resin.
- the covering portion may completely cover the surface of the base particles, or may not completely cover the surface of the base particles.
- the base particle may have a portion not covered by the covering portion.
- the adhesive particles 1 Since the adhesive particles 1 have the base particles 2, they are excellent in gap controllability. Therefore, the adhesive particles 1 can be suitably used as a spacer for a dimming laminate or the like.
- the adhesive particles 1 can be suitably used as a spacer for light control glass and a spacer for light control film.
- the gap between the substrates can be controlled with high accuracy, and the uniformity of the thickness between the substrates can be improved. Further, by suppressing the peeling of the conductive film, the dimming performance of the dimming laminate can be maintained.
- the average particle size of the adhesive particles is preferably 1 ⁇ m or more, more preferably 8 ⁇ m or more, still more preferably 10 ⁇ m or more, preferably 50 ⁇ m or less, more preferably 30 ⁇ m or less, still more preferably. It is 25 ⁇ m or less.
- the particle diameter of the adhesive particles means a diameter when the adhesive particles are spherical, and when the adhesive particles have a shape other than the spherical shape, it is assumed to be a true sphere corresponding to the volume thereof. It means the diameter when it is used.
- the particle size of the adhesive particles means the average particle size measured by the particle size measuring device for the adhesive particles.
- the particle size measuring device include a particle size distribution measuring device using principles such as laser light scattering, electric resistance value change, and image analysis after imaging.
- a particle size distribution measuring device (“Multisizer 4” manufactured by Beckman Coulter Co., Ltd.) is used to measure the particle size of about 100,000 particles and determine the average particle size. A method of measurement can be mentioned.
- the average particle size indicates a number average particle size.
- the CV value of the particle size of the adhesive particles is preferably 10% or less, more preferably 7% or less.
- the upper limit of the CV value of the particle size of the adhesive particles is not particularly limited.
- the CV value of the particle size of the adhesive particles may be 30% or less.
- the CV value (coefficient of variation) of the particle size of the adhesive particles can be measured as follows.
- CV value (%) ( ⁇ / Dn) ⁇ 100 ⁇ : Standard deviation of particle size of the adhesive particles Dn: Mean value of particle size of the adhesive particles
- the compressive elastic modulus (10% K value) of the adhesive particles when compressed at 25 ° C. is preferably 10 N / mm 2 or more, more preferably 1000 N / mm 2 or more, and preferably 10000 N / mm 2 . Below, it is more preferably 7,000 N / mm 2 or less.
- the 10% K value is equal to or higher than the lower limit and lower than the upper limit, the gap can be controlled with high accuracy.
- the compressive elastic modulus (30% K value) of the adhesive particles when compressed at 25 ° C. at 25 ° C. is preferably 50 N / mm 2 or more, more preferably 2000 N / mm 2 or more, and preferably 20000 N / mm 2 . Below, it is more preferably 10000 N / mm 2 or less.
- 30% K value is equal to or higher than the lower limit and lower than the upper limit, the gap can be controlled with high accuracy.
- the compressive elastic modulus (10% K value and 30% K value) of the adhesive particles can be measured as follows.
- the compressive elastic modulus (10% K value and 30% K value) can be obtained by the following formula.
- the compressive elastic modulus (10% K value and 30% K value) of the adhesive particles is the compressive elastic modulus (10% K value and 30% K value) of 50 arbitrarily selected adhesive particles. It is preferable to calculate by arithmetically averaging.
- the compressive elastic modulus universally and quantitatively represents the hardness of the adhesive particles. By using the compressive modulus, the hardness of the adhesive particles can be quantitatively and uniquely expressed.
- the tensile yield stress of the adhesive particles is preferably 0.03 MPa or more, more preferably 0.05 MPa or more, still more preferably 0.1 MPa or more.
- the upper limit of the tensile yield stress of the adhesive particles is not particularly limited. In the following adhesiveness test A, the tensile yield stress of the adhesive particles may be 0.03 MPa or less, or may be less than 0.03 MPa.
- the tensile yield stress of the adhesive particles is preferably 0.05 MPa or more, more preferably 0.07 MPa or more, still more preferably 0. It is 12 MPa or more.
- the upper limit of the tensile yield stress of the adhesive particles is not particularly limited. In the following adhesiveness test B, the tensile yield stress of the adhesive particles may be 0.05 MPa or less, or may be less than 0.05 MPa.
- Adhesion test A A glass substrate is prepared as the first substrate and the second substrate. Adhesive particles are sprayed on the surface of the first substrate so as to be 10 particles / mm 2 . Then, according to the method of JIS K6850, the test piece (test sample) is heated at a pressure of 5 kgf / cm 2 at 100 ° C. for 60 minutes to adhere the adhesive particles to the first and second substrates. To make. Using a Tensilon universal material tester, the adhesive strength of the test piece obtained at a tensile speed of 20 mm / min and a load cell rating of 1000 N is measured at 23 ° C. This measured value is taken as the tensile yield stress of the adhesive particles.
- Adhesion test B A glass substrate is prepared as the first substrate and the second substrate. Adhesive particles are sprayed on the surface of the first substrate so as to be 10 particles / mm 2 . Then, according to the method of JIS K 6850, the adhesive particles were heated on the first and second substrates by heating at 130 ° C. for 60 minutes at a pressure of 5 kgf / cm 2 , and the test piece (test sample) was adhered to the first and second substrates. To make. Using a Tensilon universal material tester, the adhesive strength of the test piece obtained at a tensile speed of 20 mm / min and a load cell rating of 1000 N is measured at 23 ° C. This measured value is taken as the tensile yield stress of the adhesive particles.
- glass substrate As the glass substrate, "S-7213” manufactured by Matsunami Glass Ind. Co., Ltd. or the like is used. As the Tensilon universal material tester, "RTI-1310” manufactured by A & D Co., Ltd. or the like is used.
- (meth) acrylate means one or both of “acrylate” and “methacrylate”
- (meth) acrylic means one or both of “acrylic” and “methacrylic”. means.
- the base particles are black particles. Since the adhesive particles according to the present invention have the above-mentioned structure, the occurrence of light leakage can be suppressed.
- the material of the base particle is not particularly limited.
- the material of the base particles may be an organic material or an inorganic material.
- organic material examples include polyolefin resins such as polyethylene, polypropylene, polystyrene, polyvinyl chloride, polyvinylidene chloride, polyisobutylene and polybutadiene; acrylic resins such as polymethylmethacrylate and polymethylacrylate; polycarbonate, polyamide, phenolformaldehyde resin and melamine.
- polyolefin resins such as polyethylene, polypropylene, polystyrene, polyvinyl chloride, polyvinylidene chloride, polyisobutylene and polybutadiene
- acrylic resins such as polymethylmethacrylate and polymethylacrylate
- polycarbonate polyamide, phenolformaldehyde resin and melamine.
- Formaldehyde resin benzoguanamine formaldehyde resin, urea formaldehyde resin, phenol resin, melamine resin, benzoguanamine resin, urea resin, epoxy resin, unsaturated polyester resin, saturated polyester resin, polyethylene terephthalate, polysulfone, polyphenylene oxide, polyacetal, polyimide, polyamideimide, Examples thereof include a polyether ether ketone, a polyether sulfone, and a divinylbenzene polymer.
- the divinylbenzene polymer may be a divinylbenzene copolymer.
- the divinylbenzene copolymer and the like examples include a divinylbenzene-styrene copolymer and a divinylbenzene- (meth) acrylic acid ester copolymer.
- the material of the substrate particles is one or two kinds of polymerizable monomers having an ethylenically unsaturated group. It is preferable that the polymer is polymerized as described above.
- the base material particles are obtained by polymerizing a polymerizable monomer having an ethylenically unsaturated group
- the polymerizable monomer having an ethylenically unsaturated group is cross-linked with a non-crosslinkable monomer.
- examples include sex monomers.
- non-crosslinkable monomer examples include styrene monomers such as styrene, ⁇ -methylstyrene and chlorstyrene; vinyl ether compounds such as methylvinyl ether, ethylvinyl ether and propylvinyl ether; vinyl acetate and vinyl butyrate, as vinyl compounds. Acid vinyl ester compounds such as vinyl laurate and vinyl stearate; halogen-containing monomers such as vinyl chloride and vinyl fluoride; as (meth) acrylic compounds, methyl (meth) acrylate, ethyl (meth) acrylate, propyl (meth).
- styrene monomers such as styrene, ⁇ -methylstyrene and chlorstyrene
- vinyl ether compounds such as methylvinyl ether, ethylvinyl ether and propylvinyl ether
- vinyl acetate and vinyl butyrate as vinyl compounds.
- Meta) Acrylate compound Oxygen atom-containing (meth) acrylate compound such as 2-hydroxyethyl (meth) acrylate, glycerol (meth) acrylate, polyoxyethylene (meth) acrylate, glycidyl (meth) acrylate; (meth) acrylonitrile, etc.
- Nitrile-containing monomer Halogen-containing (meth) acrylate compound such as trifluoromethyl (meth) acrylate and pentafluoroethyl (meth) acrylate; olefins such as diisobutylene, isobutylene, linearene, ethylene and propylene as ⁇ -olefin compounds.
- Compound; Examples of the conjugated diene compound include isoprene and butadiene.
- the crosslinkable monomer is a vinyl monomer such as divinylbenzene, 1,4-dibinyloxybutane, or divinylsulfone as a vinyl compound; and tetramethylolmethanetetra (meth) acrylate as a (meth) acrylic compound.
- the base particles preferably contain a colorant.
- the base particles can be obtained by uniformly mixing and dispersing the colorant in the polymerizable monomer having an ethylenically unsaturated group and polymerizing the particles.
- the colorant is preferably a pigment or a dye, and preferably a black pigment or a black dye. Only one kind of the above-mentioned colorant may be used, or two or more kinds thereof may be used in combination.
- the pigment examples include carbon black, titanium black, aniline black, iron oxide, lamp black, graphite, a copper-chromium composite oxide, and a copper-chromium-zinc composite oxide. From the viewpoint of increasing the degree of blackness and suppressing the occurrence of light leakage, the pigment is preferably carbon black.
- Examples of the above dyes include pyrazole azo dyes, anilino azo dyes, triphenylmethane dyes, anthraquinone dyes, anthrapyridone dyes, benzylidene dyes, oxol dyes, pyrazolotriazole azo dyes, pyridone azo dyes, and cyanine dyes.
- Dyes, phenothiazine dyes, pyrolopyrazole azomethine dyes, xatin dyes, phthalocyanine dyes, benzopyran dyes, indigo dyes, pyromethene dyes, triarylmethane dyes, azomethine dyes, berylene dyes, perinone dyes, Quatarylene dyes, quinophthalone dyes and the like can be mentioned.
- the above dyes are blackened by mixing two or more of acidic dyes, direct dyes, basic dyes, medium dyes, acidic medium dyes, azoic dyes, disperse dyes, oil-soluble dyes, food dyes and derivatives thereof. It may be a dye or the like.
- the above polymerization method is not particularly limited, and examples thereof include known methods such as radical polymerization, ionic polymerization, polycondensation (condensation polymerization, polycondensation), addition condensation, living polymerization, and living radical polymerization.
- examples of other polymerization methods include suspension polymerization and dispersion polymerization in the presence of a radical polymerization initiator.
- Examples of the inorganic material include silicate glass, borosilicate glass, lead glass, soda-lime glass, alumina and alumina silicate glass.
- the base particles may be formed only of the organic material, may be formed only of the inorganic material, or may be formed of both the organic material and the inorganic material. It is preferable that the base particles are formed only of an organic material. In this case, the particles can have an appropriate hardness and can more effectively exert the function as a spacer.
- the base particle may be an organic-inorganic hybrid particle.
- the base particles may be core-shell particles.
- examples of the inorganic substance which is the material of the base particle include silica, alumina, barium titanate, zirconia, and silicone. It is preferable that the inorganic substance is not a metal.
- the substrate particles formed of the above silica are not particularly limited, but after hydrolyzing a silicon compound having two or more hydrolyzable alkoxysilyl groups to form crosslinked polymer particles, firing is performed as necessary. Examples thereof include the substrate particles obtained by doing so.
- Examples of the organic-inorganic hybrid particles include organic-inorganic hybrid particles formed of a crosslinked alkoxysilyl polymer and an acrylic resin.
- the organic-inorganic hybrid particles are preferably core-shell type organic-inorganic hybrid particles having a core and a shell arranged on the surface of the core. It is preferable that the core is an organic core. It is preferable that the shell is an inorganic shell. From the viewpoint that the particles exert the function as a spacer more effectively, the base particles are organic-inorganic hybrid particles having an organic core and an inorganic shell arranged on the surface of the organic core. Is preferable.
- Examples of the material of the organic core include the above-mentioned organic material and the like.
- Examples of the material for the above-mentioned inorganic shell include the above-mentioned inorganic substances as the material for the base particle.
- the material of the inorganic shell is preferably silica.
- the inorganic shell is preferably formed by forming a metal alkoxide into a shell-like material by a sol-gel method on the surface of the core and then firing the shell-like material.
- the metal alkoxide is preferably a silane alkoxide.
- the inorganic shell is preferably formed of silane alkoxide.
- the particle size of the base particles is preferably 0.9 ⁇ m or more, more preferably 7.9 ⁇ m or more, further preferably 9.9 ⁇ m or more, preferably 49 ⁇ m or less, and more preferably 29 ⁇ m. Below, it is more preferably 24.5 ⁇ m or less.
- the particle diameter of the base material particles means the diameter when the base material particles are spherical, and when the base material particles have a shape other than the true spherical shape, it is assumed to be a true sphere corresponding to the volume thereof. It means the diameter when it is used.
- the particle size of the base material particles means the average particle size of the base material particles measured by the particle size measuring device.
- the particle size measuring device include a particle size distribution measuring device using principles such as laser light scattering, electric resistance value change, and image analysis after imaging.
- a particle size distribution measuring device (“Multisizer 4” manufactured by Beckman Coulter Co., Ltd.) is used to measure the particle size of about 100,000 particles and obtain the average particle size. A method of measurement can be mentioned.
- the average particle size indicates a number average particle size.
- the CV value of the particle size of the base particles is preferably 10% or less, more preferably 7% or less.
- the upper limit of the CV value of the particle size of the base particles is not particularly limited.
- the CV value of the particle size of the base particles may be 30% or less.
- the CV value (coefficient of variation) of the particle size of the base particle can be measured as follows.
- CV value (%) ( ⁇ / Dn) ⁇ 100 ⁇ : Standard deviation of particle size of the base particle Dn: Mean value of particle size of the base particle
- the compressive elastic modulus (10% K value) of the base particles when compressed at 25 ° C. is preferably 10 N / mm 2 or more, more preferably 1000 N / mm 2 or more, and preferably 10000 N / mm 2 . Below, it is more preferably 7,000 N / mm 2 or less.
- the 10% K value is equal to or higher than the lower limit and lower than the upper limit, the gap can be controlled with high accuracy.
- the compressive elastic modulus (30% K value) of the base particles when compressed at 25 ° C. is preferably 50 N / mm 2 or more, more preferably 2000 N / mm 2 or more, and preferably 20000 N / mm 2 . Below, it is more preferably 10000 N / mm 2 or less.
- 30% K value is equal to or higher than the lower limit and lower than the upper limit, the gap can be controlled with high accuracy.
- the compressive elastic modulus (10% K value and 30% K value) of the base particle can be measured as follows.
- the compressive elastic modulus (10% K value and 30% K value) can be obtained by the following formula.
- the compressive elastic modulus (10% K value and 30% K value) of the substrate particles is the same as the compressive elastic modulus (10% K value and 30% K value) of 50 arbitrarily selected substrate particles. It is preferable to calculate by arithmetic averaging.
- the compressive elastic modulus universally and quantitatively represents the hardness of the base particles. By using the compressive modulus, the hardness of the substrate particles can be quantitatively and uniquely expressed.
- the content of the base particles in 100% by weight of the adhesive particles is preferably 13% by weight or more, more preferably 37% by weight or more, still more preferably 63% by weight or more, and preferably 99% by weight or less. It is more preferably 94% by weight or less, still more preferably 87% by weight or less.
- the adhesiveness can be further enhanced and the dripping during heating can be suppressed more effectively.
- the content of the colorant in 100% by weight of the base particles is preferably 1% by weight or more, more preferably 3% by weight. % Or more, more preferably 5% by weight or more, preferably 20% by weight or less, more preferably 15% by weight or less, still more preferably 10% by weight or less.
- the content of the colorants means the total content of the plurality of colorants.
- the covering portion is arranged on the surface of the base material particles.
- the covering portion contains a thermosetting resin.
- the covering portion is a thermosetting resin portion.
- the thermosetting resin portion is formed of a thermosetting resin and contains a thermosetting resin. Since the adhesive particles according to the present invention have the above-mentioned structure, the thickness of the covering portion can be sufficiently secured, and as a result, the adhesiveness can be sufficiently enhanced. In addition, dripping during heating can be suppressed. As a result, the adhesiveness can be further enhanced and the occurrence of light leakage can be suppressed. By suppressing the occurrence of light leakage, it is possible to prevent a decrease in contrast of the liquid crystal display element and prevent a decrease in display quality.
- the covering portion may be formed by one layer.
- the covering portion may be formed of a plurality of layers. That is, the covering portion may have a laminated structure of two or more layers.
- the outermost layer contains a thermosetting resin.
- thermosetting resin examples include epoxy resin, vinyl ester resin, and unsaturated polyester resin. Only one type of the thermosetting resin may be used, or two or more types may be used in combination.
- the epoxy resin examples include bisphenol A type epoxy resin, bisphenol F type epoxy resin, bisphenol S type epoxy resin, phenol novolac type epoxy resin, biphenyl type epoxy resin, biphenyl novolac type epoxy resin, biphenol type epoxy resin, and naphthalene type epoxy resin. , Fluolene type epoxy resin, phenol aralkyl type epoxy resin, naphthol aralkyl type epoxy resin, dicyclopentadiene type epoxy resin, anthracene type epoxy resin, adamantan skeleton epoxy resin, tricyclodecane skeleton epoxy resin, and triazine nucleus. Examples thereof include an epoxy resin having a skeleton.
- vinyl ester resin examples include bis-based vinyl ester resin and novolak-based vinyl ester resin.
- Examples of the unsaturated polyester resin include resins obtained by polycondensation of ⁇ , ⁇ -unsaturated dicarboxylic acid or its acid anhydride and glycols.
- the thermosetting resin is preferably an epoxy resin. From the viewpoint of enhancing the adhesiveness at low temperature, the thermosetting resin preferably contains an epoxy resin.
- the epoxy resin is preferably a polyfunctional epoxy resin.
- the polyfunctional epoxy resin include bifunctional epoxy resins such as bisphenol A type epoxy resin and bisphenol F type epoxy resin, trifunctional epoxy resins such as triazine type epoxy resin, and glycidylamine type epoxy resin, and tetrakisphenol ethane. Examples thereof include a type epoxy resin and a tetrafunctional epoxy resin such as a glycidylamine type epoxy resin. Only one type of the epoxy resin may be used, or two or more types may be used in combination.
- the curing agent heat-cures the epoxy resin.
- the above-mentioned curing agent is not particularly limited.
- the curing agent include thiol curing agents such as imidazole curing agents, amine curing agents, phenol curing agents, polythiol curing agents, and acid anhydride curing agents. Only one kind of the above-mentioned curing agent may be used, or two or more kinds may be used in combination. From the viewpoint of easily controlling the compression characteristics of the adhesive particles within a suitable range, the curing agent is preferably an amine curing agent.
- the above imidazole curing agent is not particularly limited.
- Examples of the imidazole curing agent include 2-methylimidazole, 2-ethyl-4-methylimidazole, 1-cyanoethyl-2-phenylimidazole, 1-cyanoethyl-2-phenylimidazolium trimellitate, and 2,4-diamino-6.
- the above thiol curing agent is not particularly limited.
- examples of the thiol curing agent include trimethylolpropane tris-3-mercaptopropionate, pentaerythritol tetrakis-3-mercaptopropionate, and dipentaerythritol hexa-3-mercaptopropionate.
- the above amine curing agent is not particularly limited.
- examples of the amine curing agent include ethylenediamine, hexamethylenediamine, octamethylenediamine, decamethylenediamine, 2,5 (2,6) -bis (aminomethyl) bicyclo [2.2.1] heptane, and 3,9-bis.
- the amine curing agents include ethylenediamine, hexamethylenediamine, octamethylenediamine, 2,5 (2,6) -bis (aminomethyl) bicyclo [2.2.1] heptane, metaphenylenediamine, dianodiphenylmethane, and diaminodiphenyl. It is preferably sulfone, phenylenediamine, or 2,2-bis [4- (4-aminophenoxy) phenyl] propane. Adhesion at low temperatures can be enhanced by the use of these preferred amine curing agents.
- the amine curing agent is ethylenediamine, 2,5 (2,6) -bis (aminomethyl) bicyclo [2.2.1] heptane, diaminodiphenylmethane, phenylenediamine, or 2 , 2-Bis [4- (4-aminophenoxy) phenyl] propane is more preferred.
- the acid anhydride curing agent is not particularly limited, and any acid anhydride used as a curing agent for a thermosetting compound such as an epoxy compound can be widely used.
- the acid anhydride curing agent include phthalic anhydride, tetrahydrophthalic anhydride, trialkyltetrahydrochloride phthalic acid, hexahydrohydride phthalic acid, methylhexahydrohydride phthalic acid, methyltetrahydrohydride phthalic acid, and methylbutenyltetrahydrochloride phthalic acid.
- Anhydride of phthalic acid derivative maleic anhydride, nadic acid anhydride, methylnadic acid anhydride, glutaric anhydride, succinic anhydride, glycerinbis anhydrous trimellitic acid monoacetate, ethylene glycol bis anhydrous trimellitic acid, etc.
- Acid anhydride curing agent trifunctional acid anhydride curing agent such as trimellitic anhydride, and pyromellitic anhydride, benzophenonetetracarboxylic acid anhydride, methylcyclohexenetetracarboxylic acid anhydride, polyazelineic acid anhydride, etc. Examples thereof include an acid anhydride curing agent having four or more functions.
- the surface area (coverage) covered by the covering portion is preferably 20% or more, more preferably 50% or more, still more preferably 80% or more, and particularly preferably 85. % Or more.
- the upper limit of the coverage is not particularly limited.
- the coverage may be 100% or less, or 99% or less.
- the adhesiveness can be further improved.
- the gap can be controlled with higher accuracy.
- the surface area (coverage) covered by the coating is the basis of the surface area covered by the coating when the adhesive particles are observed with an electron microscope or an optical microscope. It is obtained by calculating the percentage of the projected area of the material particles.
- the thickness of the coating portion is preferably 0.1 ⁇ m or more, more preferably 0.5 ⁇ m or more, still more preferably 1 ⁇ m or more, preferably 10 ⁇ m or less, more preferably 7 ⁇ m or less. , More preferably 5 ⁇ m or less.
- the thickness of the covering portion means the thickness of the entire covering portion.
- the thickness of the covering portion can be calculated from the difference between the particle size of the base particle and the particle size of the particle.
- the ratio of the thickness of the coating portion to the particle diameter of the adhesive particles is defined as the ratio A.
- the ratio A preferably exceeds 0.01, more preferably 0.02 or more, still more preferably 0.03 or more, and particularly preferably 0.03 or more. It is 0.05 or more, preferably 0.30 or less, more preferably 0.25 or less, still more preferably 0.20 or less, and particularly preferably 0.15 or less.
- the content of the thermosetting resin is preferably 1 part by weight or more, more preferably 6 parts by weight or more, still more preferably 13 parts by weight or more, and preferably 87 parts by weight with respect to 100 parts by weight of the base particles. Parts or less, more preferably 63 parts by weight or less, still more preferably 57 parts by weight or less.
- the content of the thermosetting resin is not less than the above lower limit and not more than the above upper limit, the adhesiveness can be further enhanced and the dripping during heating can be suppressed more effectively.
- the content of the curing agent is preferably 0.1 parts by weight or more, more preferably 1 part by weight or more, still more preferably 2 parts by weight or more, and preferably 40 parts by weight with respect to 100 parts by weight of the base particles. Parts or less, more preferably 35 parts by weight or less, still more preferably 30 parts by weight or less.
- the content of the curing agent is not less than the above lower limit and not more than the above upper limit, the adhesiveness at a low temperature can be enhanced and aggregation can be suppressed.
- the content of the curing agent in the adhesive particles is preferably 5 parts by weight or more, more preferably 10 parts by weight or more, still more preferably 10 parts by weight, based on 100 parts by weight of the thermosetting resin in the adhesive particles. It is 15 parts by weight or more, preferably 40 parts by weight or less, more preferably 30 parts by weight or less, and further preferably 25 parts by weight or less.
- the content of the curing agent is not less than the above lower limit and not more than the above upper limit, the adhesiveness at a low temperature can be enhanced and aggregation can be suppressed.
- the adhesive according to the present invention contains the above-mentioned adhesive particles and a binder.
- the adhesive particles are preferably dispersed in a binder and used as an adhesive.
- the adhesive is suitably used for a light control layer and a light control laminate. Only one kind of the binder may be used, or two or more kinds may be used.
- the above binder is not particularly limited.
- an insulating resin is generally used.
- the binder resin include vinyl resins, thermoplastic resins, curable resins, thermoplastic block copolymers, elastomers and the like. Only one kind of the binder resin may be used, or two or more kinds thereof may be used in combination.
- Examples of the vinyl resin include vinyl acetate resin, acrylic resin, styrene resin and the like.
- the thermoplastic resin include polyolefin resins, ethylene-vinyl acetate copolymers, and polyamide resins.
- Examples of the curable resin include epoxy resin, urethane resin, polyimide resin, unsaturated polyester resin and the like.
- the curable resin may be a room temperature curable resin, a thermosetting resin, a photocurable resin, or a moisture curable resin.
- the curable resin may be used in combination with a curing agent.
- thermoplastic block copolymer examples include a styrene-butadiene-styrene block copolymer, a styrene-isoprene-styrene block copolymer, a hydrogenated additive of a styrene-butadiene-styrene block copolymer, and a styrene-isoprene.
- -Hydrogen additives for styrene block copolymers and the like can be mentioned.
- the elastomer examples include styrene-butadiene copolymer rubber and acrylonitrile-styrene block copolymer rubber.
- the adhesive and the binder preferably contain a thermoplastic component or a thermosetting component.
- the adhesive and the binder may contain a thermoplastic component or may contain a thermosetting component.
- the adhesive includes, for example, a filler, a bulking agent, a softening agent, a plasticizer, a polymerization catalyst, a curing catalyst, a colorant, an antioxidant, a heat stabilizer, and a light stabilizer.
- a filler for example, a filler, a bulking agent, a softening agent, a plasticizer, a polymerization catalyst, a curing catalyst, a colorant, an antioxidant, a heat stabilizer, and a light stabilizer.
- UV absorbers, lubricants, antistatic agents, flame retardants and the like may be included.
- the content of the binder is preferably 10% by weight or more, more preferably 30% by weight or more, still more preferably 50% by weight or more, particularly preferably 70% by weight or more, and preferably 99% by weight in 100% by weight of the adhesive. It is .99% by weight or less, more preferably 99.9% by weight or less.
- the adhesiveness can be further improved.
- the content of the adhesive particles in 100% by weight of the adhesive is preferably 0.01% by weight or more, more preferably 0.1% by weight or more, preferably 80% by weight or less, and more preferably 60% by weight. Below, it is more preferably 40% by weight or less, particularly preferably 20% by weight or less, and most preferably 10% by weight or less.
- the content of the adhesive particles is not less than the above lower limit and not more than the above upper limit, the adhesiveness can be improved and the gap can be controlled with high accuracy.
- the dimming laminate according to the present invention includes a first substrate, a second substrate, and a dimming layer arranged between the first substrate and the second substrate.
- the material of the dimming layer contains the above-mentioned adhesive particles.
- FIG. 2 is a cross-sectional view showing an example of a PDLC-type dimming laminate using adhesive particles according to the first embodiment of the present invention.
- the PDLC type dimming laminate 51 includes a first substrate 52, a second substrate 53, and a dimming layer 54.
- the dimming layer 54 is arranged between the first substrate 52 and the second substrate 53.
- a sealant may be arranged around the light control layer 54 between the first substrate 52 and the second substrate 53.
- the dimming layer 54 includes a liquid crystal capsule 54A, a binder 54B, and a plurality of adhesive particles 1.
- the liquid crystal capsule 54A is dispersed in the binder 54B.
- the liquid crystal capsule 54A is held in the binder 54B in the form of a capsule.
- the liquid crystal material may be encapsulated and dispersed in the binder, or the liquid crystal material may be dispersed in the binder as a continuous phase.
- Adhesive particles 1 are spherical adhesive particles. In the PDLC type dimming laminate 51, the thermosetting resin portion of the adhesive particles 1 is thermoset.
- FIG. 3 is a cross-sectional view showing an example of an SPD-type dimming laminate using adhesive particles according to the first embodiment of the present invention.
- the SPD type dimming laminate 61 includes a first substrate 62, a second substrate 63, and a dimming layer 64.
- the dimming layer 64 is arranged between the first substrate 62 and the second substrate 63.
- a sealant may be arranged around the dimming layer 64 between the first substrate 62 and the second substrate 63.
- the material of the dimming layer 64 contains a plurality of adhesive particles 1.
- the adhesive particles 1 are spherical adhesive particles.
- the thermosetting resin portion of the adhesive particles 1 is thermoset.
- the light control layer 64 contains droplets 64A of the light adjustment suspension and resin matrix 64B.
- the droplet 64A of the light-adjusted suspension is dispersed in the resin matrix 64B.
- the droplet 64A of the light-adjusted suspension is held in the resin matrix 64B in the droplet state.
- a transparent electrode may be formed on the surface of the first substrate and on the surface of the second substrate.
- Examples of the material for the transparent electrode include indium tin oxide (ITO) and the like.
- the dimming layer has dimming properties.
- the dimming property is a property that the visible light transmittance changes depending on the presence or absence of application of an electric field, and the amount of incident light can be adjusted.
- Examples of the mechanism of action for changing the visible light transmittance include a PDLC (Polymer Dispersed Liquid Crystal) method, an SPD (Suspended Personal Device) method, a guest-hosted liquid crystal method using a liquid crystal, a TN (Twisted Nematic) method, and a VA (Twisted Nematic) method.
- the material of the light control layer is not particularly limited, and may be any material as long as it has light control properties.
- the dimming laminate is preferably a PDLC dimming laminate or an SPD dimming laminate.
- the dimming layer preferably further contains a binder and a liquid crystal material dispersed in the binder.
- the liquid crystal material is not particularly limited.
- the liquid crystal material preferably has a property that the orientation changes when an electric field is applied.
- the liquid crystal material may be dispersed in the binder as a continuous phase, or may be dispersed in the binder in the form of a liquid crystal drop or a liquid crystal capsule.
- Examples of the liquid crystal material include nematic liquid crystal and cholesteric liquid crystal.
- Examples of the material of the nematic liquid crystal include cyanobiphenyl type, phenyl ester type, azoxybenzene type, fluorine-containing biphenyl type, carbonic acid ester type, Schiff base type and the like.
- As the material of the nematic liquid crystal only one kind may be used, or two or more kinds may be used in combination.
- Materials for the cholesteric liquid crystal include steroid-based cholesterol derivatives, Schiff base-based, azo-based, azoxy-based, benzoic acid ester-based, biphenyl-based, terphenyl-based, cyclohexylcarboxylic acid ester-based, phenylcyclohexane-based, biphenylcyclohexane-based, and pyrimidine.
- Nematic liquid crystals and smectic liquid crystals such as system, dioxane system, cyclohexylcyclohexane ester system, cyclohexylethane system, cyclohexane system, trans system, alkenyl system, stilben system, condensed polycyclic system, and mixed liquid crystal of these, Schiff basic system, azo Examples thereof include materials to which a chiral component of an optically active material such as a system, an ester system, or a biphenyl system is added. As the material of the cholesteric liquid crystal, only one kind may be used, or two or more kinds may be used in combination.
- the binder holds the liquid crystal material and suppresses the flow of the liquid crystal material.
- the binder is not particularly limited. It is preferable that the binder does not dissolve in the liquid crystal material, has a strength that can withstand an external force, and has high transparency to reflected light and incident light.
- the binder material include water-soluble polymer materials such as gelatin, polyvinyl alcohol, cellulose derivatives, polyacrylic acid-based polymers, ethyleneimine, polyethylene oxide, polyacrylamide, polystyrene sulfonate, polyamidine, and isoprene-based sulfonic acid polymers.
- Examples thereof include materials that can be made into an aqueous emulsion such as fluororesin, silicone resin, acrylic resin, urethane resin, and epoxy resin.
- materials that can be made into an aqueous emulsion such as fluororesin, silicone resin, acrylic resin, urethane resin, and epoxy resin.
- the material of the binder only one kind may be used, or two or more kinds may be used in combination.
- the binder is preferably crosslinked with a crosslinking agent.
- the cross-linking agent is not particularly limited. It is preferable that the cross-linking agent is capable of forming a cross-link between the binders and making the binder dura mater, poorly soluble, or insolubilized.
- the cross-linking agent include acetaldehyde, glutaraldehyde, glyoxal, polyvalent metal salt compound carimyoban hydrate, adipic acid dihydrazide, melamine formalin oligomer, ethylene glycol diglycidyl ether, polyamide epichlorohydrin, and polycarbodiimide. Can be mentioned. Only one kind of the above-mentioned cross-linking agent may be used, or two or more kinds thereof may be used in combination.
- the light control layer preferably further contains a resin matrix and a light adjustment suspension dispersed in the resin matrix.
- the light-adjusting suspension contains a dispersion medium and light-adjusting particles dispersed in the dispersion medium.
- the photoadjusting particles include carbon-based materials such as polyiodide and carbon black, metal materials such as copper, nickel, iron, cobalt, chromium, titanium and aluminum, and inorganic compound materials such as silicon nitride, titanium nitride and aluminum oxide. And so on. Further, these materials may be particles coated with a polymer. As the light adjusting particles, only one kind may be used, or two or more kinds may be used in combination.
- the dispersion medium disperses the light-adjusting particles in a fluid state.
- the dispersion medium selectively adheres to the light-adjusting particles, coats the light-adjusting particles, and moves the light-adjusting particles to the phase-separated droplet phase during phase separation from the resin matrix.
- It is preferably a material that acts, has no electrical conductivity, and has no affinity for the resin matrix.
- the dispersion medium is preferably a liquid copolymer having a refractive index close to that of the resin matrix when made into a dimming laminate.
- a (meth) acrylic acid ester oligomer having a fluoro group or a hydroxyl group is preferable, and a (meth) acrylic acid ester oligomer having a fluoro group and a hydroxyl group is more preferable.
- the monomer units of the fluoro group or hydroxyl group are directed toward the photoregulated particles, and the remaining monomer units stabilize the droplets of the photoregulated suspension in the resin matrix. Therefore, the light-adjusting particles are easily dispersed in the light-adjusting suspension, and are easily guided into the droplets to which the light-adjusting particles are phase-separated at the time of phase separation from the resin matrix.
- Examples of the (meth) acrylic acid ester oligomer having a fluoro group or a hydroxyl group include 2,2,2-trifluoroethyl methacrylate / butyl acrylate / 2-hydroxyethyl acrylate copolymer and 3,5,5 acrylate.
- the weight average molecular weight of the (meth) acrylic acid ester oligomer is preferably 1000 or more, more preferably 2000 or more, preferably 20000 or less, and more preferably 10000 or less.
- the light control layer can be produced by using the resin material for forming the resin matrix and the light adjustment suspension.
- the resin material is preferably a resin material that is cured by irradiating it with energy rays.
- the resin material that is cured by irradiating with energy rays include a polymer composition containing a photopolymerization initiator and a polymer compound that is cured by energy rays such as ultraviolet rays, visible light, and electron beams.
- the polymer composition include a polymer composition containing a polymerizable monomer having an ethylenically unsaturated group and a photopolymerization initiator.
- the polymerizable monomer having an ethylenically unsaturated group include a non-crosslinkable monomer and a crosslinkable monomer.
- non-crosslinkable monomer examples include styrene monomers such as styrene, ⁇ -methylstyrene and chlorstyrene; vinyl ether compounds such as methylvinyl ether, ethylvinyl ether and propylvinyl ether; vinyl acetate and vinyl butyrate, as vinyl compounds. Acid vinyl ester compounds such as vinyl laurate and vinyl stearate; halogen-containing monomers such as vinyl chloride and vinyl fluoride; as (meth) acrylic compounds, methyl (meth) acrylate, ethyl (meth) acrylate, propyl (meth).
- styrene monomers such as styrene, ⁇ -methylstyrene and chlorstyrene
- vinyl ether compounds such as methylvinyl ether, ethylvinyl ether and propylvinyl ether
- vinyl acetate and vinyl butyrate as vinyl compounds.
- Meta) Acrylate compound Oxygen atom-containing (meth) acrylate compound such as 2-hydroxyethyl (meth) acrylate, glycerol (meth) acrylate, polyoxyethylene (meth) acrylate, glycidyl (meth) acrylate; (meth) acrylonitrile, etc.
- Nitrile-containing monomer Halogen-containing (meth) acrylate compound such as trifluoromethyl (meth) acrylate and pentafluoroethyl (meth) acrylate; olefins such as diisobutylene, isobutylene, linearene, ethylene and propylene as ⁇ -olefin compounds.
- Compound; Examples of the conjugated diene compound include isoprene and butadiene.
- the crosslinkable monomer is a vinyl monomer such as divinylbenzene, 1,4-dibinyloxybutane, or divinylsulfone as a vinyl compound; and tetramethylolmethanetetra (meth) acrylate as a (meth) acrylic compound.
- Polyfunctional (meth) acrylate compounds such as (meth) acrylate, 1,4-butanediol di (meth) acrylate, 1,6-hexanediol di (meth) acrylate, 1,9-nonanediol di (meth) acrylate;
- As the allyl compound triallyl (iso) cyanurate, triallyl trimellitate, diallyl phthalate, diallylacrylamide, diallyl ether;
- silane compounds tetramethoxysilane, tetraethoxysilane, methyltrimethoxysilane, methyltriethoxysilane, ethyltrimethoxy Silane, ethyltriethoxysilane, isopropyltrimethoxysilane, isobutyltrimethoxysilane, cyclohexyltrimethoxysilane, n-hexyltrimethoxysilane,
- photopolymerization initiator examples include 2,2-dimethoxy-1,2-diphenylethane-1-one and 1- (4- (2-hydroxyethoxy) phenyl) -2-hydroxy-2-methyl-1-propane. -1-one, bis (2,4,6-trimethylbenzoyl) phenylphosphine oxide, 2-hydroxy-2-methyl-1-phenylpropan-1-one, (1-hydroxycyclohexyl) phenylketone and the like. Be done.
- the resin material may contain an organic solvent-soluble resin, a thermoplastic resin, poly (meth) acrylic acid and the like. Further, the resin material may contain various additives such as a colorant, an antioxidant, and an adhesion-imparting agent, and may contain a solvent.
- the first substrate and the second substrate are preferably light-transmitting base materials (light-transmitting base materials).
- the first substrate and the second substrate are preferably transparent substrates. For example, light is transmitted from one side of the transparent substrate to the other side via the transparent substrate. For example, when the substance on the other side is visually observed from one side of the transparent substrate through the transparent substrate, the substance can be visually recognized. Transparency also includes translucency.
- the transparent substrate may be colorless and transparent, or may be colored and transparent.
- the materials of the first substrate and the second substrate are not particularly limited.
- the material of the first substrate and the material of the second substrate may be the same or different.
- Examples of the material of the substrate include glass and a resin film.
- Examples of the glass include soda-lime glass for general construction, lead glass, borosilicate glass, glass having various compositions in other uses, and functional glass such as heat-reflecting glass, heat-absorbing glass, and tempered glass.
- the resin film include a polyester film such as polyethylene terephthalate, a polyolefin film such as polypropylene, and a resin film such as an acrylic resin film. Since the transparent base material is excellent in transparency, moldability, adhesiveness, processability, etc., the transparent base material is preferably a resin base material, more preferably a resin film, and preferably a polyethylene terephthalate film. More preferred.
- the first substrate and the second substrate preferably include a substrate main body and a transparent conductive film formed on the surface of the substrate main body so that an electric field for dimming can be applied.
- the transparent conductive film include indium tin oxide (ITO), SnO 2 , In 2 O 3 , and the like.
- the visible light transmittance of the first substrate and the second substrate is preferably 75% or more, more preferably 80% or more.
- the visible light transmittance of the substrate can be measured in accordance with ISO13837: 2008 by performing spectroscopic measurement or the like. It can also be measured by a method or the like conforming to the JIS K6714 standard.
- Base particle Base particle A (black particles, "Micropearl KBN-512” manufactured by Sekisui Chemical Co., Ltd., average particle diameter 12.0 ⁇ m, CV value 4.0%)
- Base particle B black particles, average particle diameter 13.1 ⁇ m, CV value 3.0%, prepared according to Synthesis Example 1 below
- Base particle C black particles, "Micropearl KBN-507” manufactured by Sekisui Chemical Co., Ltd., average particle diameter 7.0 ⁇ m, CV value 4.0%)
- Base particle D epoxy resin particles, average particle diameter 9.8 ⁇ m, CV value 7.3%, prepared according to Synthesis Example 2 below
- Base particle E white particles, "Micropearl SP-210" manufactured by Sekisui Chemical Co., Ltd., average particle diameter 10.0 ⁇ m, CV value 5.0%)
- azobisisobutyronitrile polymerization initiator, AIBN
- a mixed solution 5 g of azobisisobutyronitrile (polymerization initiator, AIBN) was dissolved in 50 g of acrylonitrile to prepare a mixed solution.
- This mixed solution and a solution prepared by dissolving 3 g of a sulfate ester salt (emulsifier, "Newcol 707SF” manufactured by Nippon Emulsifier Co., Ltd.) in 100 g of ion-exchanged water are stirred with a homogenizer at 20000 rpm for 1 minute to form a monomer emulsion. Prepared.
- a sulfate ester salt emulsifier, "Newcol 707SF” manufactured by Nippon Emulsifier Co., Ltd.
- a monomer emulsion was added to the organopolysiloxane dispersion, and after stirring for 1 hour, a dispersion of composite particles was prepared by holding at 70 ° C. for 6 hours for radical polymerization of the monomer.
- the obtained dispersion was cooled, washed with methanol, and the supernatant methanol was removed, and then dried in an oven at 80 ° C. for 1 hour to obtain composite particles.
- the obtained composite particles were calcined at 580 ° C. for 180 minutes in a nitrogen atmosphere to obtain base particles B.
- Thermosetting resin F bisphenol A type epoxy resin, "EXA-850-CRP” manufactured by DIC Corporation
- Thermosetting resin G bisphenol A type epoxy resin, "EXA-4850-150” manufactured by DIC Corporation
- Hardener 2,5 (2,6) -bis (aminomethyl) bicyclo [2.2.1] heptane (amine curing agent, "NBDA” manufactured by Mitsui Chemicals, Inc.)
- Thermoplastic resin raw material Styrene monomer
- Example 1 (1) Preparation of Adhesive Particles
- 10 parts by weight of base particle A, 2 parts by weight of thermosetting resin, 2 parts by weight of thermosetting resin, and polyvinylpyrrolidone (manufactured by Fuji Film Wako Pure Chemical Industries, Ltd.) K-30 ”) 25 parts by weight, 5 parts by weight of hexadecyltrimethylammonium bromide, 500 parts by weight of methanol, and 500 parts by weight of ethanol were dissolved by mixing.
- 2 parts by weight of an amine curing agent was added, and the mixture was reacted at 45 ° C. for 20 hours.
- the mother liquor was separated, washed with methanol, and dried under vacuum at 25 ° C. for 24 hours to obtain adhesive particles.
- a PET film having a thickness of 50 ⁇ m was prepared as a material for the first substrate and the second substrate.
- An acrylic hard coat resin (“Riodurus TYZ” manufactured by Toyo Ink Co., Ltd.) in which zirconia particles are dispersed is applied to one surface of the PET film, and then cured by irradiating with UV to obtain a first thickness of 0.8 ⁇ m. Hardcourt layer was formed.
- An acrylic hard coat resin (“Riodurus TYAB” manufactured by Toyo Ink Co., Ltd.) is applied to the other surface of the PET film and then cured by irradiating with UV to form a second hard coat layer having a thickness of 2.0 ⁇ m. did. In this way, a base film was obtained.
- This base film was placed in a vacuum device and evacuated. After the degree of vacuum reached 9.0 ⁇ 10 -4 Pa, argon gas was introduced, and the SiOx layer and SiO2 layer were placed on the surface of the first hard coat layer under an argon gas atmosphere by the DC magnetron sputtering method. And the SiOx layer was formed in this order from the first hard coat layer side, and an indium tin oxide (ITO) layer was laminated therein. Specifically, using an ITO sintered body target having a SnO 2 of 7% by weight and a cathode having a maximum horizontal magnetic flux density of 1000 gauss on the target surface, a chamber pressure of 3.5 ⁇ 10 -1 Pa, Ar.
- ITO indium tin oxide
- a conductive layer (indium tin oxide layer) having a thickness of 18 nm was formed while introducing the gas into a vacuum apparatus with a ratio of gas to O 2 gas of 100: 1. Then, it was annealed at 160 ° C. for 9 minutes in an IR heating oven (manufactured by Mino Group) to obtain a first substrate and a second substrate (transparent conductive film substrate). Adhesive particles were sprayed on the surface of the first substrate at a rate of 15 particles / cm 2 . Next, a dimming material (produced according to the method described in "Macropolymers", Vol. 26, pp. 6132 to 6134 (1993)) was laminated, and the second substrate was laminated. At this time, the adhesive particles were adhered to the first and second substrates by heating at 100 ° C. for 60 minutes at a pressure of 5 kgf / cm 2 , to prepare a dimming laminate.
- Examples 2 to 5 and Comparative Examples 2 and 3 Adhesive particles and a dimming laminate were produced in the same manner as in Example 1 except that the materials of the adhesive particles were changed as shown in Tables 1 and 2.
- thermosetting resins F and G were used as in Example 1.
- Example 2 After that, the mother liquor was separated, washed with ion-exchanged water, and then dried under reduced pressure at 55 ° C. for 24 hours. As a result, the surface of the substrate particles was coated with the thermoplastic resin without having a thermosetting resin portion. Ion particles were made. A dimming laminate was produced in the same manner as in Example 1 except that the obtained particles were used.
- thermoplastic resin (Micropearl KBS-507-KA4” manufactured by Sekisui Chemical Industry Co., Ltd., average particle diameter 7.16 ⁇ m, CV value 5.0%).
- a dimming laminate was produced in the same manner as in Example 1 except that the above was used.
- Particle size of base material particles, thickness of coating portion, and particle size of adhesive particles The particle size of the base material particles, the thickness of the coating portion, and the particle size of the adhesive particles were determined by the above-mentioned method. Further, the ratio of the thickness of the coating portion to the particle diameter of the adhesive particles (thickness of the coating portion / particle diameter of the adhesive particles) was calculated.
- the above-mentioned transparent conductive film substrate was prepared.
- the obtained adhesive particles were sprayed on the surface of the first substrate at a rate of 15 particles / cm 2 .
- the second substrate was laminated.
- the particles were heated at 200 ° C. for 60 minutes, and a digital microscope (“VHX-2000” manufactured by KEYENCE CORPORATION) was used to observe whether or not the particle surface was dripping.
- the image magnification was set to 200 times, and any 50 adhesive particles were observed.
- the dripping inhibitory property was judged according to the following criteria.
- Adhesiveness (tensile yield stress) Using the obtained adhesive particles, a test body (test sample) was prepared according to the above-mentioned adhesiveness test B. The tensile yield stress of the test piece at 23 ° C. was measured using a Tensilon universal material tester (“RTI-1310” manufactured by A & D Co., Ltd.) (adhesion test B). The adhesiveness was judged according to the following criteria.
- a TN type liquid crystal display element was produced by the following method.
- a SiO 2 film was deposited on one surface of the first and second substrates (transparent glass plate, 150 mm ⁇ 150 mm) by a CVD method, and then an ITO film was formed on the entire surface of the SiO 2 film by sputtering. Then, a polyimide alignment film (“SE-7210” manufactured by Nissan Chemical Industries, Ltd.) was placed by a spin coating method and fired at 280 ° C. for 90 minutes to form a polyimide alignment film. Next, after performing a rubbing treatment, the obtained adhesive particles were spread on the alignment film side of the first substrate using a dryspreader (“DISPA- ⁇ R” manufactured by Nisshin Engineering Co., Ltd.) from 20 to 100 per 1 mm 2 .
- DISPA- ⁇ R dryspreader
- the obtained TN type liquid crystal display element is sandwiched between polarizing films arranged on a cross Nicol so as to be in normal white display mode, and a digital microscope ("VHX-2000" manufactured by KEYENCE) is applied while applying a voltage of 7 V. Using, the state of light escape of the adhesive particles was observed. The image magnification was set to 200 times, and the ratio of the number of adhesive particles missing light was calculated in any five fields of view. The light leakage inhibitory property was judged according to the following criteria.
- composition and results of the adhesive particles are shown in Tables 1 and 2 below.
- Adhesive particles 2 ... Base particles 3 ... Coating part 51 ... PDLC type dimming laminate 52 ; First substrate 53 ... Second substrate 54 ... Dimming layer 54A ... Liquid crystal capsule 54B ... Binder 61 ... SPD Method dimming laminate 62 ... 1st substrate 63 ... 2nd substrate 64 ... Dimming layer 64A ... Light adjustment suspension droplets 64Aa ... Dispersion medium 64Ab ... Light adjustment particles 64B ... Resin matrix
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Abstract
Description
本発明に係る接着性粒子は、基材粒子と、上記基材粒子の表面上に配置された被覆部とを備える。本発明に係る接着性粒子では、上記基材粒子が、黒色粒子である。本発明に係る接着性粒子では、上記被覆部が、熱硬化性樹脂を含む。
ρ:上記接着性粒子の粒子径の標準偏差
Dn:上記接着性粒子の粒子径の平均値
F:接着性粒子が10%又は30%圧縮変形したときの荷重値(N)
S:接着性粒子が10%又は30%圧縮変形したときの圧縮変位(mm)
R:接着性粒子の半径(mm)
第1の基板及び第2の基板として、ガラス基板を用意する。第1の基板の表面上に、接着性粒子を10個/mm2となるように散布する。次いで、JIS K6850の方法に準拠して5kgf/cm2の圧力で、100℃で60分間加熱して、接着性粒子を第1,第2の基板上に接着させ、試験体(試験サンプル)を作製する。テンシロン万能材料試験機を用いて、引張速度20mm/min、ロードセル定格1000Nで得られた試験体の23℃での接着強度を測定する。この測定値を、接着性粒子の引張降伏応力とする。
第1の基板及び第2の基板として、ガラス基板を用意する。第1の基板の表面上に、接着性粒子を10個/mm2となるように散布する。次いで、JIS K 6850の方法に準拠して5kgf/cm2の圧力で、130℃で60分間加熱して、接着性粒子を第1,第2の基板上に接着させ、試験体(試験サンプル)を作製する。テンシロン万能材料試験機を用いて、引張速度20mm/min、ロードセル定格1000Nで得られた試験体の23℃での接着強度を測定する。この測定値を、接着性粒子の引張降伏応力とする。
上記基材粒子は、黒色粒子である。本発明に係る接着性粒子では、上記の構成が備えられているので、光抜けの発生を抑制することができる。
ρ:上記基材粒子の粒子径の標準偏差
Dn:上記基材粒子の粒子径の平均値
F:基材粒子が10%又は30%圧縮変形したときの荷重値(N)
S:基材粒子が10%又は30%圧縮変形したときの圧縮変位(mm)
R:基材粒子の半径(mm)
本発明に係る接着性粒子では、上記被覆部は、上記基材粒子の表面上に配置されている。上記被覆部は、熱硬化性樹脂を含む。上記被覆部は、熱硬化性樹脂部である。上記熱硬化性樹脂部は、熱硬化性樹脂により形成されており、熱硬化性樹脂を含む。本発明に係る接着性粒子では、上記の構成が備えられているので、被覆部の厚みを十分に確保することができ、結果として接着性を十分に高めることができる。また、加熱時の液だれを抑制することができる。結果として、接着性をさらに一層高めることができ、かつ、光抜けの発生を抑制することができる。光抜けの発生を抑制することにより、液晶表示素子のコントラストの低下を防ぎ、かつ、表示品質の低下を防ぐことができる。
本発明に係る接着剤は、上述した接着性粒子と、バインダーとを含む。上記接着性粒子は、バインダー中に分散され、接着剤として用いられることが好ましい。上記接着剤は、調光層及び調光積層体に好適に用いられる。上記バインダーは1種のみが用いられてもよく、2種以上が用いられてもよい。
本発明に係る調光積層体は、第1の基板と、第2の基板と、上記第1の基板と上記第2の基板との間に配置された調光層とを備える。本発明に係る調光積層体では、上記調光層の材料が、上述した接着性粒子を含む。
上記調光層は、バインダーと、上記バインダー中に分散している液晶材料とをさらに含むことが好ましい。
上記調光層は、樹脂マトリックスと、上記樹脂マトリックス中に分散している光調整懸濁液とをさらに含むことが好ましい。
上記第1の基板及び上記第2の基板は、光透過性を有する基材(光透過性基材)であることが好ましい。上記第1の基板及び上記第2の基板は、透明基材であることが好ましい。例えば、透明基材の一方側から、透明基材を介して他方側に光が透過する。例えば、透明基材の一方側から、透明基材を介して他方側にある物質を目視したときに、物質を視認可能である。透明には、半透明も含まれる。透明基材は、無色透明であってもよく、有色透明であってもよい。
基材粒子A(黒色粒子、積水化学工業社製「ミクロパールKBN-512」、平均粒子径12.0μm、CV値4.0%)
基材粒子B(黒色粒子、平均粒子径13.1μm、CV値3.0%、下記の合成例1に従って作製)
基材粒子C(黒色粒子、積水化学工業社製「ミクロパールKBN-507」、平均粒子径7.0μm、CV値4.0%)
基材粒子D(エポキシ樹脂粒子、平均粒子径9.8μm、CV値7.3%、下記の合成例2に従って作製)
基材粒子E(白色粒子、積水化学工業社製「ミクロパールSP-210」、平均粒子径10.0μm、CV値5.0%)
メチルトリメトキシシラン(MTMS)170gと水35gとを25℃で1時間撹拌した後、水1200gと1N-アンモニア水溶液12gとの混合液を添加し、さらに1時間撹拌することにより、MTMSシード粒子の分散液を得た。
温度計、撹拌機、冷却管を備えた反応容器に、ビスフェノールA型エポキシ樹脂(DIC社製「EXA-850-CRP」)10重量部と、ポリビニルピロリドン(分散安定剤)7.5重量部と、エタノール250重量部とを入れ、65℃で1時間撹拌することで均一に溶解させた。次に、4,4’-ジアミノジフェニルメタン(アミン硬化剤)2.1重量部と、エタノール35重量部とを混合し、均一に溶解させた後、反応容器内に添加し、65℃及び20時間の条件で反応させ、反応生成物を得た。得られた反応生成物をメタノールで洗浄した後、分級操作を行って基材粒子Dを得た。
熱硬化性樹脂F(ビスフェノールA型エポキシ樹脂、DIC社製「EXA-850-CRP」)
熱硬化性樹脂G(ビスフェノールA型エポキシ樹脂、DIC社製「EXA-4850-150」)
2,5(2,6)-ビス(アミノメチル)ビシクロ[2.2.1]ヘプタン(アミン硬化剤、三井化学社製「NBDA」)
スチレンモノマー
(1)接着性粒子の作製
セパラブルフラスコに、基材粒子A10重量部と、熱硬化性樹脂F2重量部と、熱硬化性樹脂G2重量部と、ポリビニルピロリドン(富士フィルム和光純薬社製「K-30」)25重量部と、ヘキサデシルトリメチルアンモニウムブロミド5重量部と、メタノール500重量部と、エタノール500重量部とを混合により溶解させた。次いで、アミン硬化剤2重量部を添加し、45℃で20時間反応させた。その後、母液分離を行い、メタノールで洗浄した後、25℃真空下で24時間乾燥を行い、接着性粒子を得た。
第1の基板、第2の基板の材料として、厚み50μmのPETフィルムを用意した。PETフィルムの一方の面に、ジルコニア粒子が分散されたアクリル系ハードコート樹脂(東洋インキ社製「リオデュラスTYZ」)を塗布した後、UVを照射することで硬化させ、厚み0.8μmの第1のハードコート層を形成した。PETフィルムの他方の面に、アクリル系ハードコート樹脂(東洋インキ社製「リオデュラスTYAB」)を塗布した後、UVを照射することで硬化させ、厚み2.0μmの第2のハードコート層を形成した。このようにして、基材フィルムを得た。
接着性粒子の材料を表1,2のように変更したこと以外は、実施例1と同様にして、接着性粒子及び調光積層体を作製した。なお、実施例2~5及び比較例3では、実施例1と同様に熱硬化性樹脂F,Gを用いた。
セパラブルフラスコに、基材粒子A10重量部と、メタノール100重量部と、p-スチレンスルホン酸ナトリウム1.5重量%を溶解させたイオン交換水900重量部とを添加してよく分散させた。その後、スチレンモノマー7重量部と、ペルオキソ二硫酸アンモニウム0.1重量部とをイオン交換水30重量部に溶解させた溶液を添加して、70℃で10時間反応させた。その後、母液分離を行い、イオン交換水で洗浄した後、55℃で24時間減圧乾燥を行うことで、熱硬化性樹脂部を有さず、基材粒子の表面が熱可塑性樹脂により被覆されている粒子を作製した。得られた粒子を用いたこと以外は、実施例1と同様にして、調光積層体を作製した。
接着性粒子として、基材粒子Aの表面を熱可塑性樹脂でグラフト化した粒子(積水化学工業社製「ミクロパールKBS-507-KA4」、平均粒子径7.16μm、CV値5.0%)を用いたこと以外は、実施例1と同様にして、調光積層体を作製した。
(1)基材粒子の粒子径、被覆部の厚み、及び接着性粒子の粒子径
上述した方法により、基材粒子の粒子径、被覆部の厚み、及び接着性粒子の粒子径を求めた。また、上記被覆部の厚みの、上記接着性粒子の粒子径に対する比(被覆部の厚み/接着性粒子の粒子径)を、計算により求めた。
第1の基板、第2の基板として、上述した透明導電フィルムの基板を用意した。第1の基板の表面上に、得られた接着性粒子を15個/cm2となるように散布した。次いで、第2の基板を積層した。その後、200℃で60分間加熱して、デジタルマイクロスコープ(キーエンス社製「VHX-2000」)を用いて、粒子表面が液だれしているか否かを観察した。画像倍率は200倍とし、任意の50個の接着性粒子を観察した。液だれ抑制性を、以下の基準で判定した。
〇〇:液だれしている接着性粒子が3個未満
○:液だれしている接着性粒子が3個以上10個未満
×:液だれしている接着性粒子が10個以上
得られた接着性粒子を用いて、上述の接着性試験Bに従って試験体(試験サンプル)を作製した。テンシロン万能材料試験機(エー・アンド・デイ社製「RTI-1310」)を用いて、上記試験体の23℃での引張降伏応力を測定した(接着性試験B)。接着性を、以下の基準で判定した。
〇〇:引張降伏応力が0.12MPa以上
○:引張降伏応力が0.07MPa以上0.12MPa未満
×:引張降伏応力が0.07MPa未満
得られた接着性粒子をTN(ツイステッドネマチック)型液晶表示素子用スペーサとして用いて、以下の方法でTN型液晶表示素子を作製した。
〇〇:光抜けしている接着性粒子が3%未満
○:光抜けしている接着性粒子が3%以上7%未満
×:光抜けしている接着性粒子が7%以上
2…基材粒子
3…被覆部
51…PDLC方式の調光積層体
52…第1の基板
53…第2の基板
54…調光層
54A…液晶カプセル
54B…バインダー
61…SPD方式の調光積層体
62…第1の基板
63…第2の基板
64…調光層
64A…光調整懸濁液の液滴
64Aa…分散媒
64Ab…光調整粒子
64B…樹脂マトリックス
Claims (6)
- 基材粒子と、前記基材粒子の表面上に配置された被覆部とを備え、
前記基材粒子が、黒色粒子であり、
前記被覆部が、熱硬化性樹脂を含む、接着性粒子。 - 前記被覆部の厚みの、前記接着性粒子の粒子径に対する比が、0.01を超える、請求項1に記載の接着性粒子。
- 前記熱硬化性樹脂が、エポキシ樹脂であり、
前記被覆部が、アミン硬化剤を含む、請求項1又は2に記載の接着性粒子。 - 前記基材粒子の10%K値が、10N/mm2以上7000N/mm2以下である、請求項1~3のいずれか1項に記載の接着性粒子。
- 請求項1~4のいずれか1項に記載の接着性粒子と、
バインダーとを含む、接着剤。 - 第1の基板と、第2の基板と、前記第1の基板と前記第2の基板との間に配置された調光層とを備え、
前記調光層の材料が、請求項1~4のいずれか1項に記載の接着性粒子を含む、調光積層体。
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH01197721A (ja) * | 1988-02-01 | 1989-08-09 | Toray Ind Inc | 複合粒子 |
JPH08278506A (ja) * | 1995-02-07 | 1996-10-22 | Nippon Shokubai Co Ltd | 粒子およびその用途 |
JPH1054990A (ja) * | 1996-08-12 | 1998-02-24 | Ube Nitto Kasei Co Ltd | エポキシ樹脂被覆熱接着性粒子およびその製造方法 |
WO2018016378A1 (ja) * | 2016-07-19 | 2018-01-25 | 積水化学工業株式会社 | 調光積層体及び調光積層体用樹脂スペーサ |
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH01197721A (ja) * | 1988-02-01 | 1989-08-09 | Toray Ind Inc | 複合粒子 |
JPH08278506A (ja) * | 1995-02-07 | 1996-10-22 | Nippon Shokubai Co Ltd | 粒子およびその用途 |
JPH1054990A (ja) * | 1996-08-12 | 1998-02-24 | Ube Nitto Kasei Co Ltd | エポキシ樹脂被覆熱接着性粒子およびその製造方法 |
WO2018016378A1 (ja) * | 2016-07-19 | 2018-01-25 | 積水化学工業株式会社 | 調光積層体及び調光積層体用樹脂スペーサ |
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