KR20210040934A - Dispersant composition, coloring composition, and color filter - Google Patents
Dispersant composition, coloring composition, and color filter Download PDFInfo
- Publication number
- KR20210040934A KR20210040934A KR1020217000066A KR20217000066A KR20210040934A KR 20210040934 A KR20210040934 A KR 20210040934A KR 1020217000066 A KR1020217000066 A KR 1020217000066A KR 20217000066 A KR20217000066 A KR 20217000066A KR 20210040934 A KR20210040934 A KR 20210040934A
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- KR
- South Korea
- Prior art keywords
- group
- meth
- acrylate
- block
- composition
- Prior art date
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- 239000000203 mixture Substances 0.000 title claims abstract description 156
- 239000002270 dispersing agent Substances 0.000 title claims abstract description 74
- 238000004040 coloring Methods 0.000 title claims description 66
- 229920000642 polymer Polymers 0.000 claims abstract description 41
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims abstract description 25
- 125000001424 substituent group Chemical group 0.000 claims abstract description 24
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims abstract description 18
- 125000000753 cycloalkyl group Chemical group 0.000 claims abstract description 17
- 125000004122 cyclic group Chemical group 0.000 claims abstract description 9
- 239000000178 monomer Substances 0.000 claims description 73
- 229920001400 block copolymer Polymers 0.000 claims description 69
- 125000004432 carbon atom Chemical group C* 0.000 claims description 59
- 238000000034 method Methods 0.000 claims description 58
- 229920005989 resin Polymers 0.000 claims description 43
- 239000011347 resin Substances 0.000 claims description 43
- 239000000463 material Substances 0.000 claims description 33
- 239000002612 dispersion medium Substances 0.000 claims description 32
- 239000011230 binding agent Substances 0.000 claims description 31
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 20
- 125000002947 alkylene group Chemical group 0.000 claims description 20
- 238000009826 distribution Methods 0.000 claims description 16
- 150000001412 amines Chemical class 0.000 claims description 12
- 238000010526 radical polymerization reaction Methods 0.000 claims description 12
- NAWXUBYGYWOOIX-SFHVURJKSA-N (2s)-2-[[4-[2-(2,4-diaminoquinazolin-6-yl)ethyl]benzoyl]amino]-4-methylidenepentanedioic acid Chemical compound C1=CC2=NC(N)=NC(N)=C2C=C1CCC1=CC=C(C(=O)N[C@@H](CC(=C)C(O)=O)C(O)=O)C=C1 NAWXUBYGYWOOIX-SFHVURJKSA-N 0.000 claims description 9
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 abstract description 66
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 139
- -1 methacryloyl Chemical group 0.000 description 89
- 239000000049 pigment Substances 0.000 description 65
- 125000000217 alkyl group Chemical group 0.000 description 58
- 229920002554 vinyl polymer Polymers 0.000 description 47
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 46
- 238000006116 polymerization reaction Methods 0.000 description 42
- 125000003118 aryl group Chemical group 0.000 description 31
- 125000003277 amino group Chemical group 0.000 description 30
- 230000002378 acidificating effect Effects 0.000 description 22
- 125000006165 cyclic alkyl group Chemical group 0.000 description 21
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 20
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 20
- 150000003498 tellurium compounds Chemical class 0.000 description 20
- LLHKCFNBLRBOGN-UHFFFAOYSA-N propylene glycol methyl ether acetate Chemical compound COCC(C)OC(C)=O LLHKCFNBLRBOGN-UHFFFAOYSA-N 0.000 description 18
- 239000003513 alkali Substances 0.000 description 16
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 16
- 150000001875 compounds Chemical class 0.000 description 15
- 229920001577 copolymer Polymers 0.000 description 15
- 239000006185 dispersion Substances 0.000 description 14
- 239000000975 dye Substances 0.000 description 14
- 239000000243 solution Substances 0.000 description 14
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 description 13
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 13
- 239000002904 solvent Substances 0.000 description 13
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 12
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 12
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 12
- 239000000047 product Substances 0.000 description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 11
- 125000003545 alkoxy group Chemical group 0.000 description 11
- 238000006243 chemical reaction Methods 0.000 description 11
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 11
- OZAIFHULBGXAKX-VAWYXSNFSA-N AIBN Substances N#CC(C)(C)\N=N\C(C)(C)C#N OZAIFHULBGXAKX-VAWYXSNFSA-N 0.000 description 10
- 229910052786 argon Inorganic materials 0.000 description 10
- 238000000576 coating method Methods 0.000 description 10
- 239000003431 cross linking reagent Substances 0.000 description 10
- 239000010408 film Substances 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 10
- 239000000758 substrate Substances 0.000 description 10
- PAPBSGBWRJIAAV-UHFFFAOYSA-N ε-Caprolactone Chemical compound O=C1CCCCCO1 PAPBSGBWRJIAAV-UHFFFAOYSA-N 0.000 description 10
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 9
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 9
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 8
- 239000002253 acid Substances 0.000 description 8
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 7
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 7
- 125000006615 aromatic heterocyclic group Chemical group 0.000 description 7
- 229910052799 carbon Inorganic materials 0.000 description 7
- 239000011203 carbon fibre reinforced carbon Substances 0.000 description 7
- 239000011248 coating agent Substances 0.000 description 7
- 150000002430 hydrocarbons Chemical group 0.000 description 7
- 125000003367 polycyclic group Chemical group 0.000 description 7
- 125000000954 2-hydroxyethyl group Chemical group [H]C([*])([H])C([H])([H])O[H] 0.000 description 6
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 6
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 6
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 6
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 6
- 239000002202 Polyethylene glycol Substances 0.000 description 6
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 6
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 239000007869 azo polymerization initiator Substances 0.000 description 6
- 238000009835 boiling Methods 0.000 description 6
- XCJYREBRNVKWGJ-UHFFFAOYSA-N copper(II) phthalocyanine Chemical compound [Cu+2].C12=CC=CC=C2C(N=C2[N-]C(C3=CC=CC=C32)=N2)=NC1=NC([C]1C=CC=CC1=1)=NC=1N=C1[C]3C=CC=CC3=C2[N-]1 XCJYREBRNVKWGJ-UHFFFAOYSA-N 0.000 description 6
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 6
- 125000000623 heterocyclic group Chemical group 0.000 description 6
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 6
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 6
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 6
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 6
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 6
- 229920001223 polyethylene glycol Polymers 0.000 description 6
- 229920001451 polypropylene glycol Polymers 0.000 description 6
- 229920005604 random copolymer Polymers 0.000 description 6
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 6
- 239000004094 surface-active agent Substances 0.000 description 6
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 6
- ARXJGSRGQADJSQ-UHFFFAOYSA-N 1-methoxypropan-2-ol Chemical compound COCC(C)O ARXJGSRGQADJSQ-UHFFFAOYSA-N 0.000 description 5
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 5
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 5
- 125000003647 acryloyl group Chemical group O=C([*])C([H])=C([H])[H] 0.000 description 5
- HUVXQFBFIFIDDU-UHFFFAOYSA-N aluminum phthalocyanine Chemical compound [Al+3].C12=CC=CC=C2C(N=C2[N-]C(C3=CC=CC=C32)=N2)=NC1=NC([C]1C=CC=CC1=1)=NC=1N=C1[C]3C=CC=CC3=C2[N-]1 HUVXQFBFIFIDDU-UHFFFAOYSA-N 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 5
- JPIIVHIVGGOMMV-UHFFFAOYSA-N ditellurium Chemical compound [Te]=[Te] JPIIVHIVGGOMMV-UHFFFAOYSA-N 0.000 description 5
- 238000005227 gel permeation chromatography Methods 0.000 description 5
- 125000005843 halogen group Chemical group 0.000 description 5
- 239000003999 initiator Substances 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- 239000003960 organic solvent Substances 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- 125000000542 sulfonic acid group Chemical group 0.000 description 5
- JKNCOURZONDCGV-UHFFFAOYSA-N 2-(dimethylamino)ethyl 2-methylprop-2-enoate Chemical compound CN(C)CCOC(=O)C(C)=C JKNCOURZONDCGV-UHFFFAOYSA-N 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 4
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical group OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 125000001931 aliphatic group Chemical group 0.000 description 4
- SOGAXMICEFXMKE-UHFFFAOYSA-N alpha-Methyl-n-butyl acrylate Natural products CCCCOC(=O)C(C)=C SOGAXMICEFXMKE-UHFFFAOYSA-N 0.000 description 4
- 125000003368 amide group Chemical group 0.000 description 4
- 239000011324 bead Substances 0.000 description 4
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 4
- 238000013329 compounding Methods 0.000 description 4
- 238000007334 copolymerization reaction Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 4
- POLCUAVZOMRGSN-UHFFFAOYSA-N dipropyl ether Chemical compound CCCOCCC POLCUAVZOMRGSN-UHFFFAOYSA-N 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- BHIWKHZACMWKOJ-UHFFFAOYSA-N methyl isobutyrate Chemical compound COC(=O)C(C)C BHIWKHZACMWKOJ-UHFFFAOYSA-N 0.000 description 4
- 125000005740 oxycarbonyl group Chemical group [*:1]OC([*:2])=O 0.000 description 4
- 230000000704 physical effect Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 230000002194 synthesizing effect Effects 0.000 description 4
- 229910052714 tellurium Inorganic materials 0.000 description 4
- PORWMNRCUJJQNO-UHFFFAOYSA-N tellurium atom Chemical group [Te] PORWMNRCUJJQNO-UHFFFAOYSA-N 0.000 description 4
- 125000001302 tertiary amino group Chemical group 0.000 description 4
- 238000004448 titration Methods 0.000 description 4
- LIKMAJRDDDTEIG-UHFFFAOYSA-N 1-hexene Chemical compound CCCCC=C LIKMAJRDDDTEIG-UHFFFAOYSA-N 0.000 description 3
- HORQAOAYAYGIBM-UHFFFAOYSA-N 2,4-dinitrophenylhydrazine Chemical compound NNC1=CC=C([N+]([O-])=O)C=C1[N+]([O-])=O HORQAOAYAYGIBM-UHFFFAOYSA-N 0.000 description 3
- FALRKNHUBBKYCC-UHFFFAOYSA-N 2-(chloromethyl)pyridine-3-carbonitrile Chemical compound ClCC1=NC=CC=C1C#N FALRKNHUBBKYCC-UHFFFAOYSA-N 0.000 description 3
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 description 3
- WVDDGKGOMKODPV-UHFFFAOYSA-N Benzyl alcohol Chemical compound OCC1=CC=CC=C1 WVDDGKGOMKODPV-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 229910019142 PO4 Inorganic materials 0.000 description 3
- LGRFSURHDFAFJT-UHFFFAOYSA-N Phthalic anhydride Natural products C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 description 3
- 150000008065 acid anhydrides Chemical class 0.000 description 3
- 125000002252 acyl group Chemical group 0.000 description 3
- JFDZBHWFFUWGJE-UHFFFAOYSA-N benzonitrile Chemical compound N#CC1=CC=CC=C1 JFDZBHWFFUWGJE-UHFFFAOYSA-N 0.000 description 3
- 125000003236 benzoyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C(*)=O 0.000 description 3
- AOJOEFVRHOZDFN-UHFFFAOYSA-N benzyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCC1=CC=CC=C1 AOJOEFVRHOZDFN-UHFFFAOYSA-N 0.000 description 3
- 238000012661 block copolymerization Methods 0.000 description 3
- 239000001055 blue pigment Substances 0.000 description 3
- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 description 3
- 239000003086 colorant Substances 0.000 description 3
- 125000004093 cyano group Chemical group *C#N 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 229920000359 diblock copolymer Polymers 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- SRLROPAFMUDDRC-INIZCTEOSA-N ethyl N-benzoyl-L-tyrosinate Chemical compound C([C@@H](C(=O)OCC)NC(=O)C=1C=CC=CC=1)C1=CC=C(O)C=C1 SRLROPAFMUDDRC-INIZCTEOSA-N 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 235000011187 glycerol Nutrition 0.000 description 3
- 239000001056 green pigment Substances 0.000 description 3
- 125000003187 heptyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 3
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 3
- 239000003112 inhibitor Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000004973 liquid crystal related substance Substances 0.000 description 3
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- TVMXDCGIABBOFY-UHFFFAOYSA-N n-Octanol Natural products CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 3
- 125000001280 n-hexyl group Chemical group C(CCCCC)* 0.000 description 3
- 125000001624 naphthyl group Chemical group 0.000 description 3
- 125000001820 oxy group Chemical group [*:1]O[*:2] 0.000 description 3
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 3
- 235000021317 phosphate Nutrition 0.000 description 3
- 239000003505 polymerization initiator Substances 0.000 description 3
- 230000000379 polymerizing effect Effects 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 239000003586 protic polar solvent Substances 0.000 description 3
- 239000001054 red pigment Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 125000003107 substituted aryl group Chemical group 0.000 description 3
- 238000006467 substitution reaction Methods 0.000 description 3
- 229940014800 succinic anhydride Drugs 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 3
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 3
- DTGKSKDOIYIVQL-WEDXCCLWSA-N (+)-borneol Chemical group C1C[C@@]2(C)[C@@H](O)C[C@@H]1C2(C)C DTGKSKDOIYIVQL-WEDXCCLWSA-N 0.000 description 2
- AFFLGGQVNFXPEV-UHFFFAOYSA-N 1-decene Chemical compound CCCCCCCCC=C AFFLGGQVNFXPEV-UHFFFAOYSA-N 0.000 description 2
- JOLQKTGDSGKSKJ-UHFFFAOYSA-N 1-ethoxypropan-2-ol Chemical compound CCOCC(C)O JOLQKTGDSGKSKJ-UHFFFAOYSA-N 0.000 description 2
- LRMMVQKUKLVVFR-UHFFFAOYSA-N 1-methoxyhexan-3-one Chemical compound CCCC(=O)CCOC LRMMVQKUKLVVFR-UHFFFAOYSA-N 0.000 description 2
- CTMHWPIWNRWQEG-UHFFFAOYSA-N 1-methylcyclohexene Chemical compound CC1=CCCCC1 CTMHWPIWNRWQEG-UHFFFAOYSA-N 0.000 description 2
- XLPJNCYCZORXHG-UHFFFAOYSA-N 1-morpholin-4-ylprop-2-en-1-one Chemical compound C=CC(=O)N1CCOCC1 XLPJNCYCZORXHG-UHFFFAOYSA-N 0.000 description 2
- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical compound CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 description 2
- AOPDRZXCEAKHHW-UHFFFAOYSA-N 1-pentoxypentane Chemical compound CCCCCOCCCCC AOPDRZXCEAKHHW-UHFFFAOYSA-N 0.000 description 2
- HXVNBWAKAOHACI-UHFFFAOYSA-N 2,4-dimethyl-3-pentanone Chemical compound CC(C)C(=O)C(C)C HXVNBWAKAOHACI-UHFFFAOYSA-N 0.000 description 2
- AVTLBBWTUPQRAY-UHFFFAOYSA-N 2-(2-cyanobutan-2-yldiazenyl)-2-methylbutanenitrile Chemical compound CCC(C)(C#N)N=NC(C)(CC)C#N AVTLBBWTUPQRAY-UHFFFAOYSA-N 0.000 description 2
- PFHOSZAOXCYAGJ-UHFFFAOYSA-N 2-[(2-cyano-4-methoxy-4-methylpentan-2-yl)diazenyl]-4-methoxy-2,4-dimethylpentanenitrile Chemical compound COC(C)(C)CC(C)(C#N)N=NC(C)(C#N)CC(C)(C)OC PFHOSZAOXCYAGJ-UHFFFAOYSA-N 0.000 description 2
- WYGWHHGCAGTUCH-UHFFFAOYSA-N 2-[(2-cyano-4-methylpentan-2-yl)diazenyl]-2,4-dimethylpentanenitrile Chemical compound CC(C)CC(C)(C#N)N=NC(C)(C#N)CC(C)C WYGWHHGCAGTUCH-UHFFFAOYSA-N 0.000 description 2
- TXBCBTDQIULDIA-UHFFFAOYSA-N 2-[[3-hydroxy-2,2-bis(hydroxymethyl)propoxy]methyl]-2-(hydroxymethyl)propane-1,3-diol Chemical compound OCC(CO)(CO)COCC(CO)(CO)CO TXBCBTDQIULDIA-UHFFFAOYSA-N 0.000 description 2
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 description 2
- ZNQVEEAIQZEUHB-UHFFFAOYSA-N 2-ethoxyethanol Chemical compound CCOCCO ZNQVEEAIQZEUHB-UHFFFAOYSA-N 0.000 description 2
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Abstract
[과제] 경시적인 포름알데하이드의 발생량이 적은 분산제 조성물을 제공한다.
[해결수단] 분산제 조성물은, 일반식 (1)로 표시되는 구조 단위를 갖는 중합체를 함유하는 것을 특징으로 하는 분산제 조성물이다.
[일반식 (1)에 있어서, R11은 수소 원자 또는 치환기를 갖고 있어도 되는 쇄상 혹은 환상의 탄화수소기를 나타낸다. R12는 치환기를 갖고 있어도 되는 쇄상 혹은 환상의 탄화수소기를 나타낸다. R11 및 R12가 서로 결합하여 환상 구조를 형성하고 있어도 된다. R13은 수소 원자 또는 메틸기를 나타낸다.][Task] To provide a dispersant composition with a small amount of formaldehyde over time.
[Solution means] The dispersant composition is a dispersant composition characterized by containing a polymer having a structural unit represented by the general formula (1).
[In General Formula (1), R 11 represents a hydrogen atom or a chain or cyclic hydrocarbon group which may have a substituent. R 12 represents a chain or cyclic hydrocarbon group which may have a substituent. R 11 and R 12 may be bonded to each other to form a cyclic structure. R 13 represents a hydrogen atom or a methyl group.]
Description
본 발명은, 중합체를 함유하는 분산제 조성물에 관한 것이다.The present invention relates to a dispersant composition containing a polymer.
종래, 액정 디스플레이 등에 이용되는 컬러 필터의 제조에 있어서, 기재에 대한 착색재의 부여 방법으로서는, 염색법, 인쇄법, 잉크젯법, 전착법, 안료 분산법 등이 알려져 있다. 이들 중에서도, 분광 특성, 내구성, 패턴 형상 및 정밀도의 관점에서, 안료 분산법이 주류로 되어 있다. 이 안료 분산법에 있어서는, 안료, 분산제, 분산 매체(용매), 바인더 수지 등을 혼합한 착색 조성물로 이루어지는 도포막을 기판 상에 형성하고, 원하는 패턴 형상의 포토마스크를 개재하여 방사선을 조사하고 경화시켜, 알칼리 현상이 행해진다.Conventionally, in manufacturing a color filter used in a liquid crystal display or the like, as a method of imparting a colorant to a substrate, a dyeing method, a printing method, an inkjet method, an electrodeposition method, a pigment dispersion method, and the like are known. Among these, from the viewpoints of spectral characteristics, durability, pattern shape, and precision, the pigment dispersion method is the mainstream. In this pigment dispersion method, a coating film made of a colored composition in which a pigment, a dispersant, a dispersion medium (solvent), and a binder resin is mixed is formed on a substrate, and radiation is irradiated and cured through a photomask having a desired pattern shape. , Alkali development is performed.
최근, 컬러 필터의 양호한 색재현성 및 고콘트라스트를 얻기 위하여 착색 조성물 중의 안료의 고농도화가 검토되고 있다. 안료를 고농도화하는 경우, 상대적으로 분산제의 비율이 감소하기 때문에, 분산제에는 높은 분산성이 요구된다(예를 들면, 특허문헌 1(단락 0004) 참조). 또한, 알칼리 현상에서는, 알칼리 가용성을 갖는 바인더 수지가 큰 역할을 달성하고 있다. 그러나, 안료를 고농도화한 안료 분산 조성물의 경우에는, 현상 성분인 바인더 수지의 비율이 감소하고, 알칼리 현상성이 저하한다. 그 때문에, 본래, 바인더 수지에 요구되어 온 알칼리 현상성이, 분산제에도 요구된다. 이와 같은 분산제로서, 특허문헌 2에는, 측쇄에 폴리락톤쇄를 갖는 A블록과, 측쇄에 3급 아미노기를 갖는 B블록으로 이루어지는, A-B블록 공중합체를 안료 분산제로서 이용하는 것이 기재되어 있다(특허문헌 2(단락 0023~0045) 참조).In recent years, in order to obtain satisfactory color reproducibility and high contrast of color filters, high concentration of pigments in colored compositions has been studied. In the case of high concentration of the pigment, since the proportion of the dispersant decreases relatively, high dispersibility is required for the dispersant (for example, see Patent Document 1 (paragraph 0004)). In addition, in alkali development, a binder resin having alkali solubility plays a large role. However, in the case of the pigment dispersion composition in which the pigment is high-concentrated, the proportion of the binder resin as a developing component decreases, and alkali developability decreases. Therefore, the alkali developability, which has originally been required for the binder resin, is also required for the dispersant. As such a dispersant, Patent Literature 2 describes using an AB block copolymer as a pigment dispersant, consisting of an A block having a polylactone chain in a side chain and a B block having a tertiary amino group in the side chain (Patent Literature 2). (See paragraphs 0023 to 0045).
수지형 분산제에 있어서, 착색재의 분산성을 높이기 위하여, 측쇄에 3급 아미노기를 도입하는 것이 제안되어 있다(특허문헌 2 참조). 그러나, 3급 아미노기를 갖는 수지형 분산제는, 이 3급 아미노기에 기인하여, 경시적으로 포름알데하이드가 발생한다고 생각된다. 그 때문에, 이와 같은 수지형 분산제를 착색 조성물에 사용하면, 착색 조성물 중에 포름알데하이드가 포함되게 된다. 최근, 환경 기준이 엄격해지고 있기 때문에, 종래의 수지형 분산제를 사용하면, 착색 조성물 중의 포름알데하이드량이, 환경 기준에 합치하지 않게 된다.In a resin type dispersant, in order to increase the dispersibility of a coloring material, it has been proposed to introduce a tertiary amino group into the side chain (refer to Patent Document 2). However, it is considered that the resin-type dispersant having a tertiary amino group is attributed to this tertiary amino group, and formaldehyde is generated over time. Therefore, when such a resin type dispersant is used for a colored composition, formaldehyde will be contained in the colored composition. In recent years, since environmental standards have become stringent, when a conventional resin type dispersant is used, the amount of formaldehyde in the colored composition does not meet the environmental standards.
본 발명은 상기 사정을 감안하여 이루어진 것이며, 경시적인 포름알데하이드의 발생량이 적은 분산제 조성물을 제공하는 것을 목적으로 한다.The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a dispersant composition with a small amount of formaldehyde generation over time.
상기 과제를 해결할 수 있었던 본 발명의 분산제 조성물은, 일반식 (1)로 표시되는 구조 단위를 갖는 중합체를 함유하는 것을 특징으로 한다.The dispersant composition of the present invention capable of solving the above problems is characterized by containing a polymer having a structural unit represented by the general formula (1).
[일반식 (1)에 있어서, R11은 수소 원자 또는 치환기를 갖고 있어도 되는 쇄상 혹은 환상의 탄화수소기를 나타낸다. R12는 치환기를 갖고 있어도 되는 쇄상 혹은 환상의 탄화수소기를 나타낸다. R11 및 R12가 서로 결합하여 환상 구조를 형성하고 있어도 된다. R13은 수소 원자 또는 메틸기를 나타낸다.][In General Formula (1), R 11 represents a hydrogen atom or a chain or cyclic hydrocarbon group which may have a substituent. R 12 represents a chain or cyclic hydrocarbon group which may have a substituent. R 11 and R 12 may be bonded to each other to form a cyclic structure. R 13 represents a hydrogen atom or a methyl group.]
아미노기를 갖는 중합체를 분산제로서 사용하면, 이 아미노기에 기인하여, 경시적으로 포름알데하이드가 발생한다고 생각된다. 본 발명에서는 놀랍게도, 아미노기를 갖는 구조 단위를, 아미노기를 갖지 않는 일반식 (1)로 표시되는 구조 단위로 함으로써, 착색재의 분산 성능을 저하시키는 일 없이, 경시적인 포름알데하이드의 발생을 억제하여, 분산제 조성물 중의 포름알데하이드를 저감시킬 수 있다.When a polymer having an amino group is used as a dispersant, it is considered that formaldehyde is generated over time due to this amino group. In the present invention, surprisingly, by using the structural unit having an amino group as the structural unit represented by the general formula (1) not having an amino group, the generation of formaldehyde over time without deteriorating the dispersing performance of the coloring material is suppressed, and the dispersant Formaldehyde in the composition can be reduced.
본 발명에는, 상기 분산제 조성물, 착색재, 바인더 수지 및 분산 매체를 함유하는 것을 특징으로 하는 착색 조성물도 포함된다. 또한, 본 발명에는, 상기 착색 조성물을 이용하여 형성된 착색층을 구비하는 것을 특징으로 하는 컬러 필터도 포함된다.The present invention also includes a coloring composition comprising the dispersant composition, a coloring material, a binder resin, and a dispersion medium. Further, the present invention also includes a color filter comprising a colored layer formed by using the colored composition.
본 발명에 의하면, 경시적인 포름알데하이드의 발생량이 적은 분산제 조성물이 얻어진다.According to the present invention, a dispersant composition with a small amount of formaldehyde generation over time is obtained.
이하, 본 발명을 실시한 바람직한 형태의 일례에 대하여 설명한다. 단, 이하의 실시 형태는 단순한 예시이다. 이하의 실시 형태에 조금도 한정되지 않는다.Hereinafter, an example of a preferred embodiment of the present invention will be described. However, the following embodiment is a mere illustration. It is not limited at all to the following embodiment.
본 발명에 있어서, 「(메타)아크릴」은 「아크릴 및 메타크릴 중 적어도 한쪽」을 말한다. 「(메타)아크릴 모노머」는, 분자 중에 「(메타)아크릴로일기」를 갖는 모노머를 말한다. 「(메타)아크릴로일」은 「아크릴로일 및 메타크릴로일 중 적어도 한쪽」을 말한다. 「비닐 모노머」란 분자 중에 라디칼 중합 가능한 탄소-탄소 이중 결합을 갖는 모노머를 말한다. 「(메타)아크릴 모노머에서 유래하는 구조 단위」란, (메타)아크릴 모노머의 라디칼 중합 가능한 탄소-탄소 이중 결합이, 중합하여 탄소-탄소 단결합이 된 구조 단위를 말한다. 「비닐 모노머에서 유래하는 구조 단위」란, 비닐 모노머의 라디칼 중합 가능한 탄소-탄소 이중 결합이, 중합하여 탄소-탄소 단결합이 된 구조 단위를 말한다.In the present invention, "(meth)acrylic" refers to "at least one of acrylic and methacrylic". "(Meth)acrylic monomer" refers to a monomer having a "(meth)acryloyl group" in a molecule. "(Meth)acryloyl" means "at least one of acryloyl and methacryloyl". The "vinyl monomer" refers to a monomer having a radically polymerizable carbon-carbon double bond in a molecule. "Structural unit derived from a (meth)acrylic monomer" refers to a structural unit in which a radically polymerizable carbon-carbon double bond of a (meth)acrylic monomer is polymerized to form a single carbon-carbon bond. "Structural unit derived from a vinyl monomer" refers to a structural unit in which a carbon-carbon double bond capable of radical polymerization of a vinyl monomer is polymerized to form a single carbon-carbon bond.
<분산제 조성물><Dispersant composition>
본 발명의 분산제 조성물은, 분산제 성분으로서, 일반식 (1)로 표시되는 구조 단위를 갖는 중합체를 함유하는 것을 특징으로 한다.The dispersant composition of the present invention is characterized by containing a polymer having a structural unit represented by the general formula (1) as a dispersant component.
아미노기를 갖는 중합체를 분산제로서 사용하면, 이 아미노기에 기인하여, 경시적으로 포름알데하이드가 발생한다고 생각된다. 본 발명에서는 놀랍게도, 아미노기를 갖는 구조 단위를, 아미노기를 갖지 않는 일반식 (1)로 표시되는 구조 단위로 함으로써, 착색재의 분산 성능을 저하시키는 일 없이, 경시적인 포름알데하이드의 발생을 억제하여, 분산제 조성물 중의 포름알데하이드를 저감시킬 수 있다.When a polymer having an amino group is used as a dispersant, it is considered that formaldehyde is generated over time due to this amino group. In the present invention, surprisingly, by using the structural unit having an amino group as the structural unit represented by the general formula (1) not having an amino group, the generation of formaldehyde over time without deteriorating the dispersing performance of the coloring material is suppressed, and the dispersant Formaldehyde in the composition can be reduced.
일반식 (1)로 표시되는 구조 단위를 갖는 중합체로서는, (메타)아크릴계 중합체를 들 수 있다.Examples of the polymer having the structural unit represented by the general formula (1) include (meth)acrylic polymers.
일반식 (1)로 표시되는 구조 단위를 갖는 중합체로서는, 경시적인 포름알데하이드의 발생량을 저감시키는 관점에서, 아미노기를 갖지 않는 것이 바람직하다. 즉, 중합체를 구성하는 비닐 모노머에는, 아미노기를 갖는 비닐 모노머를 함유하지 않는 것이 바람직하다. 중합체 중의 아미노기를 갖는 비닐 모노머에서 유래하는 구조 단위(아미노기가 4급화되어 있는 것을 포함한다.)의 함유율은, 2질량% 이하가 바람직하고, 보다 바람직하게는 1질량% 이하, 더욱 바람직하게는 0.1질량% 이하, 가장 바람직하게는 0질량%이다. 또한, 상기 중합체의 아민가는, 10mgKOH/g 미만이 바람직하고, 보다 바람직하게는 5mgKOH/g 미만, 더욱 바람직하게는 3mgKOH/g 미만이며, 가장 바람직하게는 0mgKOH/g이다.As the polymer having the structural unit represented by the general formula (1), it is preferable not to have an amino group from the viewpoint of reducing the amount of formaldehyde generated over time. That is, it is preferable that the vinyl monomer constituting the polymer does not contain a vinyl monomer having an amino group. The content rate of the structural unit derived from a vinyl monomer having an amino group in the polymer (including those in which the amino group is quaternized) is preferably 2% by mass or less, more preferably 1% by mass or less, further preferably 0.1 It is mass% or less, Most preferably, it is 0 mass %. Further, the amine value of the polymer is preferably less than 10 mgKOH/g, more preferably less than 5 mgKOH/g, still more preferably less than 3 mgKOH/g, and most preferably 0 mgKOH/g.
일반식 (1)로 표시되는 구조 단위를 갖는 중합체의 분자량은, 겔 침투 크로마토그래피법에 의하여 측정된다. 상기 중합체의 중량 평균 분자량(Mw)은 3,000 이상이 바람직하고, 보다 바람직하게는 4,000 이상, 더욱 바람직하게는 5,000 이상이며, 특히 바람직하게는 6,000 이상이고, 40,000 이하가 바람직하며, 보다 바람직하게는 30,000 이하, 더욱 바람직하게는 25,000 이하이고, 특히 바람직하게는 20,000 이하이다. 중량 평균 분자량이 상기 범위 내에 있으면, 분산제로서 사용했을 때의 분산 성능이 보다 양호해진다.The molecular weight of the polymer having the structural unit represented by the general formula (1) is measured by gel permeation chromatography. The weight average molecular weight (Mw) of the polymer is preferably 3,000 or more, more preferably 4,000 or more, even more preferably 5,000 or more, particularly preferably 6,000 or more, preferably 40,000 or less, and more preferably 30,000 Hereinafter, it is more preferably 25,000 or less, and particularly preferably 20,000 or less. When the weight average molecular weight is within the above range, the dispersion performance when used as a dispersant becomes more favorable.
(블록 공중합체)(Block copolymer)
상기 중합체는, 분산성의 관점에서, 바람직하게는 (메타)아크릴 모노머에서 유래하는 구조 단위를 갖는 A블록과, 일반식 (1)로 표시되는 구조 단위를 갖는 B블록을 갖는 블록 공중합체가 바람직하다. 상기 블록 공중합체의 각종 구성 성분 등에 대하여 이하 설명한다.The polymer is preferably a block copolymer having a block A having a structural unit derived from a (meth)acrylic monomer and a block B having a structural unit represented by the general formula (1) from the viewpoint of dispersibility. . Various constituent components of the block copolymer will be described below.
(A블록)(A block)
A블록은, (메타)아크릴 모노머에서 유래하는 구조 단위를 포함하는 폴리머 블록이다. A블록에 있어서의 (메타)아크릴 모노머에서 유래하는 구조 단위는, 1종만이어도 되고, 2종 이상을 갖고 있어도 된다. (메타)아크릴 모노머에서 유래하는 구조 단위를 가짐으로써, 분산 매체(용매), 착색 조성물에 배합되는 바인더 수지와의 높은 친화성을 유지할 수 있다.A block is a polymer block containing a structural unit derived from a (meth)acrylic monomer. The number of structural units derived from the (meth)acrylic monomer in the A block may be one type or may have two or more types. By having the structural unit derived from the (meth)acrylic monomer, it is possible to maintain high affinity with the dispersion medium (solvent) and the binder resin blended in the coloring composition.
상기 (메타)아크릴 모노머에서 유래하는 구조 단위의 함유율은, 상기 A블록 100질량% 중에 있어서, 80질량% 이상이 바람직하고, 보다 바람직하게는 90질량% 이상, 더욱 바람직하게는 95질량% 이상, 특히 바람직하게는 100질량%이다.The content rate of the structural unit derived from the (meth)acrylic monomer is preferably 80% by mass or more, more preferably 90% by mass or more, further preferably 95% by mass or more, in 100% by mass of the A block, It is particularly preferably 100% by mass.
상기 (메타)아크릴 모노머는, 쇄상 알킬기(직쇄 알킬기 또는 분기쇄 알킬기)를 갖는 (메타)아크릴레이트, 환상 알킬기를 갖는 (메타)아크릴레이트, 다환식 구조를 갖는 (메타)아크릴레이트, 방향족기를 갖는 (메타)아크릴레이트, 폴리알킬렌글리콜 구조 단위를 갖는 (메타)아크릴레이트, 하이드록시기를 갖는 (메타)아크릴레이트, 락톤 변성 하이드록시기를 갖는 (메타)아크릴레이트, 알콕시기를 갖는 (메타)아크릴레이트, 함산소 헤테로환기를 갖는 (메타)아크릴레이트, 산성기를 갖는 (메타)아크릴레이트, (메타)아크릴산 등을 들 수 있고, 이들 중에서 1종 또는 2종 이상을 조합하여 이용할 수 있다.The (meth)acrylic monomer is a (meth)acrylate having a chain alkyl group (linear alkyl group or branched chain alkyl group), (meth)acrylate having a cyclic alkyl group, (meth)acrylate having a polycyclic structure, and having an aromatic group. (Meth)acrylate, (meth)acrylate having a polyalkylene glycol structural unit, (meth)acrylate having a hydroxy group, (meth)acrylate having a lactone-modified hydroxyl group, (meth)acrylate having an alkoxy group , (Meth)acrylate having an oxygen-containing heterocyclic group, (meth)acrylate having an acidic group, and (meth)acrylic acid, and the like, among them, can be used alone or in combination of two or more.
상기 직쇄 알킬기를 갖는 (메타)아크릴레이트로서는, 직쇄 알킬기의 탄소수가 1~20인 직쇄 알킬기를 갖는 (메타)아크릴레이트가 바람직하고, 직쇄 알킬기의 탄소수가 1~10인 직쇄 알킬기를 갖는 (메타)아크릴레이트가 보다 바람직하다. 상기 직쇄 알킬기를 갖는 (메타)아크릴레이트로서는, 메틸(메타)아크릴레이트, 에틸(메타)아크릴레이트, n-프로필(메타)아크릴레이트, n-부틸(메타)아크릴레이트, n-헥실(메타)아크릴레이트, n-옥틸(메타)아크릴레이트, n-노닐(메타)아크릴레이트, 데실(메타)아크릴레이트, n-라우릴(메타)아크릴레이트, n-스테아릴(메타)아크릴레이트 등을 들 수 있다.As the (meth)acrylate having a straight-chain alkyl group, a (meth)acrylate having a straight-chain alkyl group having 1 to 20 carbon atoms of the straight-chain alkyl group is preferable, and (meth) having a straight-chain alkyl group having 1 to 10 carbon atoms of the straight-chain alkyl group Acrylate is more preferred. As the (meth)acrylate having a linear alkyl group, methyl (meth)acrylate, ethyl (meth)acrylate, n-propyl (meth)acrylate, n-butyl (meth)acrylate, n-hexyl (meth) Acrylate, n-octyl (meth)acrylate, n-nonyl (meth)acrylate, decyl (meth)acrylate, n-lauryl (meth)acrylate, n-stearyl (meth)acrylate, etc. I can.
상기 분기쇄 알킬기를 갖는 (메타)아크릴레이트로서는, 분기쇄 알킬기의 탄소수가 3~20인 분기쇄 알킬기를 갖는 (메타)아크릴레이트가 바람직하고, 분기쇄 알킬기의 탄소수가 3~10인 분기쇄 알킬기를 갖는 (메타)아크릴레이트가 바람직하다. 상기 분기쇄 알킬기를 갖는 (메타)아크릴레이트로서는, 이소프로필(메타)아크릴레이트, 이소부틸(메타)아크릴레이트, sec-부틸(메타)아크릴레이트, tert-부틸(메타)아크릴레이트, 이소옥틸(메타)아크릴레이트, 2-에틸헥실(메타)아크릴레이트, 이소노닐(메타)아크릴레이트, 이소데실(메타)아크릴레이트 등을 들 수 있다.As the (meth)acrylate having a branched chain alkyl group, a (meth)acrylate having a branched chain alkyl group having 3 to 20 carbon atoms in the branched chain alkyl group is preferable, and a branched chain alkyl group having 3 to 10 carbon atoms in the branched chain alkyl group A (meth)acrylate having is preferred. As the (meth)acrylate having a branched chain alkyl group, isopropyl (meth)acrylate, isobutyl (meth)acrylate, sec-butyl (meth)acrylate, tert-butyl (meth)acrylate, isooctyl ( Meth)acrylate, 2-ethylhexyl (meth)acrylate, isononyl (meth)acrylate, isodecyl (meth)acrylate, and the like.
상기 환상 알킬기를 갖는 (메타)아크릴레이트로서는, 환상 알킬기의 탄소수가 6~12인 환상 알킬기를 갖는 (메타)아크릴레이트인 것이 바람직하다. 환상 알킬기로서는, 단환 구조를 갖는 환상 알킬기(예를 들면, 시클로알킬기)를 들 수 있다. 단환 구조의 환상 알킬기를 갖는 (메타)아크릴레이트의 구체예로서는, 시클로헥실(메타)아크릴레이트, 메틸시클로헥실(메타)아크릴레이트, 시클로도데실(메타)아크릴레이트 등을 들 수 있다.The (meth)acrylate having a cyclic alkyl group is preferably a (meth)acrylate having a cyclic alkyl group having 6 to 12 carbon atoms in the cyclic alkyl group. Examples of the cyclic alkyl group include a cyclic alkyl group having a monocyclic structure (eg, a cycloalkyl group). Specific examples of the (meth)acrylate having a cyclic alkyl group having a monocyclic structure include cyclohexyl (meth)acrylate, methylcyclohexyl (meth)acrylate, and cyclododecyl (meth)acrylate.
상기 다환식 구조를 갖는 (메타)아크릴레이트로서는, 다환식 구조의 탄소수가 6~12인 다환식 구조를 갖는 (메타)아크릴레이트인 것이 바람직하다. 다환식 구조로서는, 가교환 구조를 갖는 환상 알킬기(예를 들면, 아다만틸기, 노보닐기, 이소보닐기)를 들 수 있다. 다환식 구조를 갖는 (메타)아크릴레이트의 구체예로서는, 이소보닐(메타)아크릴레이트, 디시클로펜테닐옥시에틸(메타)아크릴레이트, 디시클로펜타닐옥시에틸(메타)아크릴레이트, 2-메틸-2-아다만틸(메타)아크릴레이트, 2-에틸-2-아다만틸(메타)아크릴레이트 등을 들 수 있다.As the (meth)acrylate having a polycyclic structure, it is preferable that it is a (meth)acrylate having a polycyclic structure having 6 to 12 carbon atoms in the polycyclic structure. Examples of the polycyclic structure include a cyclic alkyl group having a interchangeable structure (for example, an adamantyl group, a norbornyl group, and an isobornyl group). Specific examples of the (meth)acrylate having a polycyclic structure include isobornyl (meth)acrylate, dicyclopentenyloxyethyl (meth)acrylate, dicyclopentanyloxyethyl (meth)acrylate, and 2-methyl-2 -Adamantyl (meth)acrylate, 2-ethyl-2-adamantyl (meth)acrylate, etc. are mentioned.
상기 방향족기를 갖는 (메타)아크릴레이트로서는, 방향족기의 탄소수가 6~12인 방향족기를 갖는 (메타)아크릴레이트인 것이 바람직하다. 방향족기로서는, 아릴기 등을 들 수 있고, 또 알킬아릴기, 아랄킬기, 아릴옥시알킬기 등과 같이 쇄상 부분을 갖고 있어도 된다. 방향족기를 갖는 (메타)아크릴레이트의 구체예로서는, 벤질(메타)아크릴레이트, 페닐(메타)아크릴레이트, 페녹시에틸(메타)아크릴레이트 등을 들 수 있다.The (meth)acrylate having an aromatic group is preferably a (meth)acrylate having an aromatic group having 6 to 12 carbon atoms in the aromatic group. Examples of the aromatic group include an aryl group and the like, and may have a chain moiety such as an alkylaryl group, an aralkyl group, and an aryloxyalkyl group. Specific examples of the (meth)acrylate having an aromatic group include benzyl (meth)acrylate, phenyl (meth)acrylate, and phenoxyethyl (meth)acrylate.
상기 폴리알킬렌글리콜 구조 단위를 갖는 (메타)아크릴레이트로서는, 폴리에틸렌글리콜(중합도=2~10) 메틸에테르(메타)아크릴레이트, 폴리에틸렌글리콜(중합도=2~10) 에틸에테르(메타)아크릴레이트, 폴리에틸렌글리콜(중합도=2~10) 프로필에테르(메타)아크릴레이트, 폴리에틸렌글리콜(중합도=2~10) 페닐에테르(메타)아크릴레이트 등의 폴리에틸렌글리콜 구조 단위를 갖는 (메타)아크릴레이트; 폴리프로필렌글리콜(중합도=2~10) 메틸에테르(메타)아크릴레이트, 폴리프로필렌글리콜(중합도=2~10) 에틸에테르(메타)아크릴레이트, 폴리프로필렌글리콜(중합도=2~10) 프로필에테르(메타)아크릴레이트, 폴리프로필렌글리콜(중합도=2~10) 페닐에테르(메타)아크릴레이트 등의 폴리프로필렌글리콜 구조 단위를 갖는 (메타)아크릴레이트를 들 수 있다.As the (meth)acrylate having the polyalkylene glycol structural unit, polyethylene glycol (degree of polymerization = 2 to 10) methyl ether (meth) acrylate, polyethylene glycol (degree of polymerization = 2 to 10) ethyl ether (meth) acrylate, (Meth)acrylate having a polyethylene glycol structural unit such as polyethylene glycol (degree of polymerization = 2 to 10) propyl ether (meth) acrylate and polyethylene glycol (degree of polymerization = 2 to 10) phenyl ether (meth) acrylate; Polypropylene glycol (degree of polymerization = 2 to 10) methyl ether (meth) acrylate, polypropylene glycol (degree of polymerization = 2 to 10) ethyl ether (meth) acrylate, polypropylene glycol (degree of polymerization = 2 to 10) propyl ether (meth) ) Acrylate and polypropylene glycol (polymerization degree = 2 to 10) and (meth)acrylates having a polypropylene glycol structural unit such as phenyl ether (meth)acrylate.
상기 하이드록시기를 갖는 (메타)아크릴레이트로서는, 2-하이드록시에틸(메타)아크릴레이트, 3-하이드록시프로필(메타)아크릴레이트, 2-하이드록시프로필(메타)아크릴레이트, 4-하이드록시부틸(메타)아크릴레이트, 6-하이드록시헥실(메타)아크릴레이트, 8-하이드록시옥틸(메타)아크릴레이트, 10-하이드록시데실(메타)아크릴레이트, 12-하이드록시라우릴(메타)아크릴레이트 등을 들 수 있다. 이들 중에서도 탄소수가 1~5인 하이드록시알킬기를 갖는 (메타)아크릴레이트가 보다 바람직하다.Examples of the (meth)acrylate having a hydroxy group include 2-hydroxyethyl (meth)acrylate, 3-hydroxypropyl (meth)acrylate, 2-hydroxypropyl (meth)acrylate, and 4-hydroxybutyl (Meth)acrylate, 6-hydroxyhexyl (meth)acrylate, 8-hydroxyoctyl (meth)acrylate, 10-hydroxydecyl (meth)acrylate, 12-hydroxylauryl (meth)acrylate And the like. Among these, a (meth)acrylate having a hydroxyalkyl group having 1 to 5 carbon atoms is more preferable.
상기 락톤 변성 하이드록시기를 갖는 (메타)아크릴레이트로서는, 상기 하이드록시기를 갖는 (메타)아크릴레이트에 락톤을 부가한 것을 들 수 있고, 카프로락톤을 부가한 것이 바람직하다. 카프로락톤의 부가량은, 1mol~10mol이 바람직하고, 1mol~5mol이 보다 바람직하다. 상기 락톤 변성 하이드록시기를 갖는 (메타)아크릴레이트로서는, 2-하이드록시에틸(메타)아크릴레이트의 카프로락톤 1mol 부가물, 2-하이드록시에틸(메타)아크릴레이트의 카프로락톤 2mol 부가물, 2-하이드록시에틸(메타)아크릴레이트의 카프로락톤 3mol 부가물, 2-하이드록시에틸(메타)아크릴레이트의 카프로락톤 4mol 부가물, 2-하이드록시에틸(메타)아크릴레이트의 카프로락톤 5mol 부가물, 2-하이드록시에틸(메타)아크릴레이트의 카프로락톤 10mol 부가물 등이 바람직하다.Examples of the (meth)acrylate having a lactone-modified hydroxyl group include those obtained by adding lactone to the (meth)acrylate having a hydroxyl group, and those obtained by adding caprolactone are preferable. The amount of caprolactone added is preferably 1 mol to 10 mol, more preferably 1 mol to 5 mol. Examples of the lactone-modified hydroxy group-containing (meth)acrylate, 2-hydroxyethyl (meth)acrylate with 1 mol of caprolactone adduct, 2-hydroxyethyl (meth)acrylate with 2 mol of caprolactone adduct, 2- 3 mol adduct of caprolactone of hydroxyethyl (meth)acrylate, 4 mol adduct of caprolactone of 2-hydroxyethyl (meth)acrylate, 5 mol adduct of caprolactone of 2-hydroxyethyl (meth)acrylate, 2 -10 mol addition product of caprolactone of hydroxyethyl (meth)acrylate, etc. are preferable.
상기 알콕시기를 갖는 (메타)아크릴레이트로서는, 메톡시에틸(메타)아크릴레이트, 에톡시에틸(메타)아크릴레이트 등을 들 수 있다.Examples of the (meth)acrylate having an alkoxy group include methoxyethyl (meth)acrylate and ethoxyethyl (meth)acrylate.
상기 함산소 헤테로환기를 갖는 (메타)아크릴레이트로서는, 4원환~6원환의 함산소 헤테로환기를 갖는 (메타)아크릴레이트가 바람직하다. 함산소 헤테로환기를 갖는 (메타)아크릴레이트의 구체예로서는, 글리시딜(메타)아크릴레이트, 테트라하이드로푸르푸릴(메타)아크릴레이트, (3-에틸옥세탄-3-일)메틸(메타)아크릴레이트, (2-메틸-2-에틸-1,3-디옥솔란-4-일)메틸(메타)아크릴레이트, 환상 트리메틸올프로판포르말(메타)아크릴레이트, 2-〔(2-테트라하이드로피란일)옥시〕에틸(메타)아크릴레이트, 1,3-디옥산-(메타)아크릴레이트 등을 들 수 있다.As the (meth)acrylate having an oxygen-containing heterocyclic group, a (meth)acrylate having a 4- to 6-membered oxygen-containing heterocyclic group is preferable. As specific examples of the (meth)acrylate having an oxygen-containing heterocyclic group, glycidyl (meth)acrylate, tetrahydrofurfuryl (meth)acrylate, (3-ethyloxetan-3-yl)methyl (meth)acrylic Rate, (2-methyl-2-ethyl-1,3-dioxolan-4-yl)methyl (meth)acrylate, cyclic trimethylolpropane formal (meth)acrylate, 2-[(2-tetrahydropyran) One) oxy] ethyl (meth) acrylate, 1,3-dioxane- (meth) acrylate, and the like.
상기 산성기로서는, 카르복시기(-COOH), 설폰산기(-SO3H), 인산기(-OPO3H2), 포스폰산기(-PO3H2), 포스핀산기(-PO2H2)를 들 수 있다. 상기 산성기를 갖는 (메타)아크릴레이트로서는, 카르복시기를 갖는 (메타)아크릴레이트, 인산기를 갖는 (메타)아크릴레이트, 설폰산기를 갖는 (메타)아크릴레이트를 들 수 있다.Examples of the acidic group include a carboxyl group (-COOH), a sulfonic acid group (-SO 3 H), a phosphoric acid group (-OPO 3 H 2 ), a phosphonic acid group (-PO 3 H 2 ), and a phosphinic acid group (-PO 2 H 2 ). Can be mentioned. Examples of the (meth)acrylate having an acidic group include (meth)acrylate having a carboxy group, (meth)acrylate having a phosphoric acid group, and (meth)acrylate having a sulfonic acid group.
상기 카르복시기를 갖는 (메타)아크릴레이트로서는, 카르복시에틸(메타)아크릴레이트, 카르복시펜틸(메타)아크릴레이트, 2-(메타)아크릴로일옥시에틸석시네이트, 2-(메타)아크릴로일옥시에틸말리에이트, 2-(메타)아크릴로일옥시에틸프탈레이트 등의 하이드록시기를 갖는 (메타)아크릴레이트에 무수 말레산, 무수 석신산, 무수 프탈산 등의 산무수물을 반응시킨 모노머 등을 들 수 있다. 상기 설폰산기를 갖는 (메타)아크릴레이트로서는, 설폰산 에틸(메타)아크릴레이트 등을 들 수 있다. 상기 인산기를 갖는 (메타)아크릴레이트로서는, (메타)아크릴산 2-(포스포노옥시)에틸 등을 들 수 있다.Examples of the (meth)acrylate having a carboxyl group include carboxyethyl (meth)acrylate, carboxypentyl (meth)acrylate, 2-(meth)acryloyloxyethylsuccinate, and 2-(meth)acryloyloxy. And a monomer obtained by reacting an acid anhydride such as maleic anhydride, succinic anhydride and phthalic anhydride with (meth)acrylate having a hydroxy group such as ethyl maleate and 2-(meth)acryloyloxyethylphthalate. . Examples of the (meth)acrylate having a sulfonic acid group include ethyl sulfonic acid (meth)acrylate. Examples of the (meth)acrylate having a phosphoric acid group include 2-(phosphonooxy)ethyl (meth)acrylate.
상기 A블록은, (메타)아크릴 모노머에서 유래하는 구조 단위 이외의 다른 구조 단위를 갖고 있어도 된다. A블록에 포함될 수 있는 다른 구조 단위는, (메타)아크릴 모노머 및 후술하는 B블록을 형성하는 비닐 모노머의 양쪽 모두와 공중합할 수 있는 비닐 모노머에 의하여 형성되는 것이면 특별히 제한은 없다. A블록의 다른 구조 단위를 형성할 수 있는 비닐 모노머는 단독으로 사용해도 되고, 2종 이상을 병용해도 된다.The A block may have a structural unit other than the structural unit derived from a (meth)acrylic monomer. Other structural units that may be included in the A block are not particularly limited as long as they are formed of a vinyl monomer that can be copolymerized with both a (meth)acrylic monomer and a vinyl monomer forming the B block described later. The vinyl monomers capable of forming other structural units of the A block may be used alone or in combination of two or more.
A블록의 다른 구조 단위를 형성할 수 있는 비닐 모노머의 구체예로서는, α-올레핀, 방향족 비닐 모노머, 헤테로환을 함유하는 비닐 모노머, 카복실산 비닐, 디엔류 등을 들 수 있다. 이들 비닐 모노머는 하이드록시기, 에폭시기를 갖고 있어도 된다.Specific examples of the vinyl monomers capable of forming other structural units of the A block include α-olefins, aromatic vinyl monomers, vinyl monomers containing heterocycles, vinyl carboxylate, and dienes. These vinyl monomers may have a hydroxy group and an epoxy group.
α-올레핀으로서는, 1-헥센, 1-옥텐, 1-데센 등을 들 수 있다.Examples of the α-olefin include 1-hexene, 1-octene, and 1-decene.
방향족 비닐 모노머로서는, 스티렌, α-메틸스티렌, 4-메틸스티렌, 2-메틸스티렌, 3-메틸스티렌, 4-메톡시스티렌, 2-하이드록시메틸스티렌, 1-비닐나프탈렌 등을 들 수 있다.Examples of the aromatic vinyl monomer include styrene, α-methylstyrene, 4-methylstyrene, 2-methylstyrene, 3-methylstyrene, 4-methoxystyrene, 2-hydroxymethylstyrene, and 1-vinylnaphthalene.
헤테로환을 함유하는 비닐 모노머로서는, 2-비닐티오펜, N-메틸-2-비닐피롤, 1-비닐-2-피롤리돈, 2-비닐피리딘, 4-비닐피리딘, N-페닐말레이미드, N-벤질말레이미드, N-시클로헥실말레이미드 등을 들 수 있다.As a vinyl monomer containing a heterocycle, 2-vinylthiophene, N-methyl-2-vinylpyrrole, 1-vinyl-2-pyrrolidone, 2-vinylpyridine, 4-vinylpyridine, N-phenylmaleimide, N-benzyl maleimide, N-cyclohexyl maleimide, etc. are mentioned.
카복실산 비닐로서는, 아세트산 비닐, 피발산 비닐, 안식향산 비닐 등을 들 수 있다.As vinyl carboxylate, vinyl acetate, vinyl pivalate, vinyl benzoate, etc. are mentioned.
디엔류로서는, 부타디엔, 이소프렌, 4-메틸-1,4-헥사디엔, 7-메틸-1,6-옥타디엔 등을 들 수 있다.Examples of dienes include butadiene, isoprene, 4-methyl-1,4-hexadiene, and 7-methyl-1,6-octadiene.
A블록은, 일반식 (10)으로 표시되는 구조 단위, 즉 상기 락톤 변성 하이드록시기를 갖는 (메타)아크릴레이트에서 유래하는 구조 단위를 함유하는 것이 바람직하다. 일반식 (10)으로 표시되는 구조 단위는, 측쇄에 에스테르 결합 부분 및 말단 하이드록시기를 갖는 것으로부터, 분산 매체, 바인더 수지와의 높은 친화성을 갖고, 블록 공중합체의 알칼리 현상성을 높인다.It is preferable that the A block contains a structural unit represented by the general formula (10), that is, a structural unit derived from the (meth)acrylate having the lactone-modified hydroxy group. Since the structural unit represented by the general formula (10) has an ester bonding moiety and a terminal hydroxy group in the side chain, it has high affinity with a dispersion medium and a binder resin, and increases the alkali developability of the block copolymer.
[일반식 (10)에 있어서, n1은 1~10의 정수를 나타낸다. R1은 수소 원자 또는 메틸기를 나타낸다. R2는 탄소수가 1~10인 알킬렌기를 나타낸다. R3은 탄소수가 1~10인 알킬렌기를 나타낸다.][In General Formula (10), n1 represents the integer of 1-10. R 1 represents a hydrogen atom or a methyl group. R 2 represents an alkylene group having 1 to 10 carbon atoms. R 3 represents an alkylene group having 1 to 10 carbon atoms.]
상기 식 (10)의 n1은, 1~7의 정수인 것이 바람직하고, 1~5의 정수인 것이 보다 바람직하다.It is preferable that n1 of said formula (10) is an integer of 1-7, and it is more preferable that it is an integer of 1-5.
상기 R2로 나타내어지는 탄소수가 1~10인 알킬렌기는, 직쇄상, 분기쇄상 중 어느 것이어도 되는데, 직쇄상이 바람직하다. 상기 R2로 나타내어지는 탄소수가 1~10인 알킬렌기의 구체예로서는, 메틸렌기, 에틸렌기, 트리메틸렌기, 테트라메틸렌기, 펜타메틸렌기, 헥사메틸렌기, 헵타메틸렌기, 옥타메틸렌기, 노나메틸렌기, 데카메틸렌기, 1-메틸에틸렌기 등을 들 수 있다. R2는, 탄소수가 1~5인 알킬렌기인 것이 바람직하다.The alkylene group having 1 to 10 carbon atoms represented by R 2 may be linear or branched, but linear is preferable. Specific examples of the alkylene group having 1 to 10 carbon atoms represented by R 2 include a methylene group, an ethylene group, a trimethylene group, a tetramethylene group, a pentamethylene group, a hexamethylene group, a heptamethylene group, an octamethylene group, and a nonamethylene group. Group, a decamethylene group, and a 1-methylethylene group. R 2 is preferably an alkylene group having 1 to 5 carbon atoms.
상기 R3으로 나타내어지는 탄소수가 1~10인 알킬렌기는, 직쇄상, 분기쇄상 중 어느 것이어도 되는데, 직쇄상이 바람직하다. 상기 R3으로 나타내어지는 탄소수가 1~10인 알킬렌기의 구체예로서는, 메틸렌기, 에틸렌기, 트리메틸렌기, 테트라메틸렌기, 펜타메틸렌기, 헥사메틸렌기, 헵타메틸렌기, 옥타메틸렌기, 노나메틸렌기, 데카메틸렌기 등을 들 수 있다. R3은, 탄소수가 1~8인 알킬렌기인 것이 바람직하고, 탄소수가 3~8인 알킬렌기인 것이 보다 바람직하다.The alkylene group having 1 to 10 carbon atoms represented by R 3 may be linear or branched, but linear is preferable. Specific examples of the alkylene group having 1 to 10 carbon atoms represented by R 3 include methylene group, ethylene group, trimethylene group, tetramethylene group, pentamethylene group, hexamethylene group, heptamethylene group, octamethylene group, and nonamethylene Group, a decamethylene group, and the like. R 3 is preferably an alkylene group having 1 to 8 carbon atoms, and more preferably an alkylene group having 3 to 8 carbon atoms.
상기 A블록이, 일반식 (10)으로 표시되는 구조 단위를 함유하는 경우, 그 함유율은, A블록 100질량% 중에 있어서 10질량% 이상이 바람직하고, 보다 바람직하게는 20질량% 이상, 더욱 바람직하게는 30질량% 이상, 특히 바람직하게는 60질량% 이상이며, 95질량% 이하가 바람직하고, 보다 바람직하게는 90질량% 이하, 더욱 바람직하게는 85질량% 이하이다. 락톤 변성 하이드록시기를 갖는 (메타)아크릴레이트에서 유래하는 구조 단위의 함유율을 상기 범위 내로 함으로써, 블록 공중합체의 알칼리 현상성을 높일 수 있다.When the A block contains the structural unit represented by the general formula (10), the content rate is preferably 10% by mass or more, more preferably 20% by mass or more, further preferably, in 100% by mass of the A block. It is preferably 30% by mass or more, particularly preferably 60% by mass or more, preferably 95% by mass or less, more preferably 90% by mass or less, and still more preferably 85% by mass or less. The alkali developability of the block copolymer can be improved by making the content of the structural unit derived from the (meth)acrylate having a lactone-modified hydroxy group within the above range.
A블록은, 산성기를 갖는 비닐 모노머(바람직하게는 산성기를 갖는 (메타)아크릴레이트, (메타)아크릴산)에서 유래하는 구조 단위를 갖는 것이 바람직하다. 산성기를 갖는 비닐 모노머에서 유래하는 구조 단위를 가짐으로써 알칼리 현상액에 대한 용해성이 증가하여, 알칼리 현상성을 향상시킬 수 있다.It is preferable that the A block has a structural unit derived from a vinyl monomer having an acidic group (preferably (meth)acrylate having an acidic group, (meth)acrylic acid). By having a structural unit derived from a vinyl monomer having an acidic group, solubility in an alkali developer is increased, and alkali developability can be improved.
산성기를 갖는 비닐 모노머에서 유래하는 구조 단위를 함유하는 경우, 그 함유율은, A블록 100질량% 중에 있어서 2질량% 이상이 바람직하고, 20질량% 이하가 바람직하다. 산성기를 갖는 비닐 모노머에서 유래하는 구조 단위의 함유율이 2질량% 이상이면 알칼리 현상에 있어서, 알칼리로 중화했을 때의 용해 속도가 빨라지고, 20질량% 이하이면 친수성이 너무 높지 않아, 형성되는 화소가 난잡해지는 것을 억제할 수 있다.When it contains the structural unit derived from the vinyl monomer which has an acidic group, 2 mass% or more is preferable in 100 mass% of A blocks, and 20 mass% or less is preferable. If the content of the structural unit derived from the vinyl monomer having an acidic group is 2% by mass or more, the dissolution rate when neutralized with alkali is accelerated in the alkaline phenomenon, and if it is 20% by mass or less, the hydrophilicity is not too high, resulting in messy pixels to be formed. You can suppress the loss.
상기 A블록은, 후술하는 일반식 (1)로 표시되는 구조 단위의 함유율이 5질량% 미만, 바람직하게는 3질량% 이하, 보다 바람직하게는 1질량% 이하이며, 더욱 바람직하게는 0.1질량% 이하, 일반식 (1)로 표시되는 구조 단위를 함유하지 않는 것이 가장 바람직하다. A블록 중의 일반식 (1)로 표시되는 구조 단위의 합계 함유율이 낮을수록, 착색재의 분산 성능이 향상된다.The A block contains less than 5% by mass, preferably 3% by mass or less, more preferably 1% by mass or less, and still more preferably 0.1% by mass of the structural unit represented by the general formula (1) described later. Hereinafter, it is most preferable not to contain the structural unit represented by general formula (1). The lower the total content rate of the structural unit represented by the general formula (1) in the A block, the better the dispersion performance of the coloring material.
A블록에 있어서 2종 이상의 구조 단위가 함유되는 경우는, A블록에 함유되는 각종 구조 단위는, A블록 중에 있어서 랜덤 공중합, 블록 공중합 등 중 어느 양태로 함유되어 있어도 되고, 균일성의 관점에서 랜덤 공중합의 양태로 함유되어 있는 것이 바람직하다. 예를 들면, A블록이, a1블록으로 이루어지는 구조 단위와 a2블록으로 이루어지는 구조 단위의 공중합체에 의하여 형성되어 있어도 된다.When two or more types of structural units are contained in the A block, the various structural units contained in the A block may be contained in any of random copolymerization, block copolymerization, etc. in the A block, and random copolymerization from the viewpoint of uniformity. It is preferably contained in the form of. For example, the A block may be formed by a copolymer of a structural unit composed of an a1 block and a structural unit composed of an a2 block.
(B블록)(B block)
B블록은 하기 일반식 (1)로 표시되는 구조 단위를 포함하는 폴리머 블록이다.The B block is a polymer block containing a structural unit represented by the following general formula (1).
(일반식 (1)로 표시되는 구조 단위)(Structural unit represented by general formula (1))
일반식 (1)로 표시되는 구조 단위는, 1종만이어도 되고, 2종 이상을 갖고 있어도 된다. 일반식 (1)로 표시되는 구조 단위를 가짐으로써, 착색재와의 흡착성이 높아, 경시적인 포름알데하이드의 발생을 억제할 수 있다.The structural unit represented by the general formula (1) may be one type or may have two or more types. By having the structural unit represented by the general formula (1), the adsorption property with a coloring material is high, and generation|occurrence|production of formaldehyde with time can be suppressed.
[일반식 (1)에 있어서, R11은 수소 원자 또는 치환기를 갖고 있어도 되는 쇄상 혹은 환상의 탄화수소기를 나타낸다. R12는 치환기를 갖고 있어도 되는 쇄상 혹은 환상의 탄화수소기를 나타낸다. R11 및 R12가 서로 결합하여 환상 구조를 형성하고 있어도 된다. R13은 수소 원자 또는 메틸기를 나타낸다.][In General Formula (1), R 11 represents a hydrogen atom or a chain or cyclic hydrocarbon group which may have a substituent. R 12 represents a chain or cyclic hydrocarbon group which may have a substituent. R 11 and R 12 may be bonded to each other to form a cyclic structure. R 13 represents a hydrogen atom or a methyl group.]
상기 R11로 나타내어지는 쇄상의 탄화수소기로서는, 직쇄상 알킬기, 분기쇄상 알킬기 등을 들 수 있다. 상기 직쇄상 알킬기의 탄소수로서는, 탄소수 1~20이 바람직하고, 탄소수 1~10이 보다 바람직하며, 탄소수 1~5가 더욱 바람직하다. 상기 직쇄상 알킬기로서는, 메틸기, 에틸기, n-프로필기, n-부틸기, n-헥실기, n-옥틸기, n-노닐기, n-데실기, n-라우릴기 등을 들 수 있다. 상기 분기쇄상 알킬기의 탄소수로서는, 탄소수 3~20이 바람직하고, 탄소수 3~10이 보다 바람직하며, 탄소수 3~5가 더욱 바람직하다. 상기 분기쇄상 알킬기로서는, 이소프로필기, 이소부틸기, sec-부틸기, tert-부틸기, 2-에틸헥실기, 네오펜틸기, 이소옥틸기 등을 들 수 있다.Examples of the chain hydrocarbon group represented by R 11 include a linear alkyl group and a branched chain alkyl group. As carbon number of the said linear alkyl group, C1-C20 is preferable, C1-C10 is more preferable, and C1-C5 is still more preferable. Examples of the linear alkyl group include methyl group, ethyl group, n-propyl group, n-butyl group, n-hexyl group, n-octyl group, n-nonyl group, n-decyl group, n-lauryl group, and the like. . As the carbon number of the branched chain alkyl group, 3 to 20 carbon atoms are preferable, 3 to 10 carbon atoms are more preferable, and 3 to 5 carbon atoms are still more preferable. Examples of the branched chain alkyl group include isopropyl group, isobutyl group, sec-butyl group, tert-butyl group, 2-ethylhexyl group, neopentyl group, and isooctyl group.
상기 R11로 나타내어지는 쇄상의 탄화수소기가 갖는 치환기로서는, 할로겐기, 알콕시기, 벤조일기(-COC6H5), 하이드록시기 등을 들 수 있다. 또한, 상기 R11로 나타내어지는 쇄상의 탄화수소기는, 치환기로서 아미노기(아미노기의 수소 원자가 알킬기로 치환된 치환 아미노기를 포함한다.)를 갖지 않는 것이 바람직하다.Examples of the substituents of the chain hydrocarbon group represented by R 11 include a halogen group, an alkoxy group, a benzoyl group (-COC 6 H 5 ), and a hydroxy group. Further, it is preferable that the chain hydrocarbon group represented by R 11 does not have an amino group (a substituted amino group in which the hydrogen atom of the amino group is substituted with an alkyl group) as a substituent.
상기 R11로 나타내어지는 환상의 탄화수소기로서는, 환상 알킬기, 방향족기 등을 들 수 있고, 환상 알킬기 및 방향족기는 쇄상 부분을 갖고 있어도 된다. 상기 환상 알킬기의 탄소수로서는, 탄소수 4~18이 바람직하고, 탄소수 6~12가 보다 바람직하며, 탄소수 6~10이 더욱 바람직하다. 상기 환상 알킬기로서는, 시클로부틸기, 시클로펜틸기, 시클로헥실기, 시클로헵틸기, 시클로옥틸기 등을 들 수 있다. 상기 방향족기의 탄소수로서는, 탄소수 6~18이 바람직하고, 탄소수 6~12가 보다 바람직하며, 탄소수 6~8이 더욱 바람직하다. 상기 방향족기로서는, 페닐기, 톨릴기, 크실릴기, 메시틸기 등을 들 수 있다. 쇄상 부분을 갖는 환상 알킬기 및 쇄상 부분을 갖는 방향족기의 쇄상 부분의 예로서는, 탄소수 1~12의 알킬렌기, 바람직하게는 탄소수 1~6의 알킬렌기, 보다 바람직하게는 탄소수 1~3의 알킬렌기를 들 수 있다.Examples of the cyclic hydrocarbon group represented by R 11 include a cyclic alkyl group and an aromatic group, and the cyclic alkyl group and the aromatic group may have a chain moiety. The number of carbon atoms of the cyclic alkyl group is preferably 4 to 18 carbon atoms, more preferably 6 to 12 carbon atoms, and even more preferably 6 to 10 carbon atoms. Examples of the cyclic alkyl group include a cyclobutyl group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, and a cyclooctyl group. As carbon number of the said aromatic group, C6-C18 is preferable, C6-C12 is more preferable, and C6-C8 is still more preferable. Examples of the aromatic group include a phenyl group, a tolyl group, a xylyl group, and a mesityl group. Examples of the chain portion of a cyclic alkyl group having a chain portion and an aromatic group having a chain portion include an alkylene group having 1 to 12 carbon atoms, preferably an alkylene group having 1 to 6 carbon atoms, and more preferably an alkylene group having 1 to 3 carbon atoms. Can be lifted.
상기 R11로 나타내어지는 환상의 탄화수소기가 갖는 치환기로서는, 할로겐기, 알콕시기, 쇄상의 알킬기, 하이드록시기 등을 들 수 있다. 또한, 상기 R11로 나타내어지는 환상의 탄화수소기는, 치환기로서 아미노기(아미노기의 수소 원자가 알킬기로 치환된 치환 아미노기를 포함한다.)를 갖지 않는 것이 바람직하다.Examples of the substituents of the cyclic hydrocarbon group represented by R 11 include a halogen group, an alkoxy group, a chain alkyl group, and a hydroxy group. In addition, it is preferable that the cyclic hydrocarbon group represented by R 11 does not have an amino group (a substituted amino group in which the hydrogen atom of the amino group is substituted with an alkyl group) as a substituent.
상기 R12로 나타내어지는 쇄상의 탄화수소기로서는, 직쇄상 알킬기, 분기쇄상 알킬기 등을 들 수 있다. 상기 직쇄상 알킬기의 탄소수로서는, 탄소수 1~20이 바람직하고, 탄소수 1~10이 보다 바람직하며, 탄소수 1~5가 더욱 바람직하다. 상기 직쇄상 알킬기로서는, 메틸기, 에틸기, n-프로필기, n-부틸기, n-헥실기, n-옥틸기, n-노닐기, n-데실기, n-라우릴기 등을 들 수 있다. 상기 분기쇄상 알킬기의 탄소수로서는, 탄소수 3~20이 바람직하고, 탄소수 3~10이 보다 바람직하며, 탄소수 3~5가 더욱 바람직하다. 상기 분기쇄상 알킬기로서는, 이소프로필기, 이소부틸기, sec-부틸기, tert-부틸기, 2-에틸헥실기, 네오펜틸기, 이소옥틸기 등을 들 수 있다.Examples of the chain hydrocarbon group represented by R 12 include a linear alkyl group and a branched chain alkyl group. As carbon number of the said linear alkyl group, C1-C20 is preferable, C1-C10 is more preferable, and C1-C5 is still more preferable. Examples of the linear alkyl group include methyl group, ethyl group, n-propyl group, n-butyl group, n-hexyl group, n-octyl group, n-nonyl group, n-decyl group, n-lauryl group, and the like. . As the carbon number of the branched chain alkyl group, 3 to 20 carbon atoms are preferable, 3 to 10 carbon atoms are more preferable, and 3 to 5 carbon atoms are still more preferable. Examples of the branched chain alkyl group include isopropyl group, isobutyl group, sec-butyl group, tert-butyl group, 2-ethylhexyl group, neopentyl group, and isooctyl group.
상기 R12로 나타내어지는 쇄상의 탄화수소기가 갖는 치환기로서는, 할로겐기, 알콕시기, 벤조일기(-COC6H5), 하이드록시기 등을 들 수 있다. 또한, 상기 R12로 나타내어지는 쇄상의 탄화수소기는, 치환기로서 아미노기(아미노기의 수소 원자가 알킬기로 치환된 치환 아미노기를 포함한다.)를 갖지 않는 것이 바람직하다.Examples of the substituents of the chain hydrocarbon group represented by R 12 include a halogen group, an alkoxy group, a benzoyl group (-COC 6 H 5 ), and a hydroxy group. In addition, it is preferable that the chain hydrocarbon group represented by R 12 does not have an amino group (a substituted amino group in which the hydrogen atom of the amino group is substituted with an alkyl group) as a substituent.
상기 R12로 나타내어지는 환상의 탄화수소기로서는, 환상 알킬기, 방향족기 등을 들 수 있고, 환상 알킬기 및 방향족기는 쇄상 부분을 갖고 있어도 된다. 상기 환상 알킬기의 탄소수로서는, 탄소수 4~18이 바람직하고, 탄소수 6~12가 보다 바람직하며, 탄소수 6~10이 더욱 바람직하다. 상기 환상 알킬기로서는, 시클로부틸기, 시클로펜틸기, 시클로헥실기, 시클로헵틸기, 시클로옥틸기 등을 들 수 있다. 상기 방향족기의 탄소수로서는, 탄소수 6~18이 바람직하고, 탄소수 6~12가 보다 바람직하며, 탄소수 6~8이 더욱 바람직하다. 상기 방향족기로서는, 페닐기, 톨릴기, 크실릴기, 메시틸기 등을 들 수 있다. 쇄상 부분을 갖는 환상 알킬기 및 쇄상 부분을 갖는 방향족기의 쇄상 부분의 예로서는, 탄소수 1~12의 알킬렌기, 바람직하게는 탄소수 1~6의 알킬렌기, 보다 바람직하게는 탄소수 1~3의 알킬렌기를 들 수 있다.Examples of the cyclic hydrocarbon group represented by R 12 include a cyclic alkyl group and an aromatic group, and the cyclic alkyl group and the aromatic group may have a chain moiety. The number of carbon atoms of the cyclic alkyl group is preferably 4 to 18 carbon atoms, more preferably 6 to 12 carbon atoms, and even more preferably 6 to 10 carbon atoms. Examples of the cyclic alkyl group include a cyclobutyl group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, and a cyclooctyl group. As carbon number of the said aromatic group, C6-C18 is preferable, C6-C12 is more preferable, and C6-C8 is still more preferable. Examples of the aromatic group include a phenyl group, a tolyl group, a xylyl group, and a mesityl group. Examples of the chain portion of a cyclic alkyl group having a chain portion and an aromatic group having a chain portion include an alkylene group having 1 to 12 carbon atoms, preferably an alkylene group having 1 to 6 carbon atoms, and more preferably an alkylene group having 1 to 3 carbon atoms. Can be lifted.
상기 R12로 나타내어지는 환상의 탄화수소기가 갖는 치환기로서는, 할로겐기, 알콕시기, 쇄상의 알킬기, 하이드록시기 등을 들 수 있다. 또한, 상기 R12로 나타내어지는 환상의 탄화수소기는, 치환기로서 아미노기(아미노기의 수소 원자가 알킬기로 치환된 치환 아미노기를 포함한다.)를 갖지 않는 것이 바람직하다.Examples of the substituents of the cyclic hydrocarbon group represented by R 12 include a halogen group, an alkoxy group, a chain alkyl group, and a hydroxy group. In addition, it is preferable that the cyclic hydrocarbon group represented by R 12 does not have an amino group (a substituted amino group in which the hydrogen atom of the amino group is substituted with an alkyl group) as a substituent.
상기 R11 및 R12가 서로 결합하여 형성하는 환상 구조로서는, 예를 들면, 5원환~7원환의 함질소 헤테로환 또는 이들이 2개 축합하여 이루어지는 축합환을 들 수 있다. 당해 함질소 헤테로환은 방향족성을 갖지 않는 것이 바람직하고, 포화환이 보다 바람직하다. 구체적으로는 하기 식 (1-1), (1-2), (1-3)으로 표시되는 구조를 들 수 있다.Examples of the cyclic structure formed by bonding of R 11 and R 12 to each other include a 5- to 7-membered nitrogen-containing heterocycle or a condensed ring formed by condensing two of them. It is preferable that the nitrogen-containing heterocycle does not have aromaticity, and a saturated ring is more preferable. Specifically, structures represented by the following formulas (1-1), (1-2), and (1-3) are exemplified.
[일반식 (1-1), (1-2), (1-3)에 있어서, R14는, 탄소수 1~6의 알킬기를 나타낸다. l은 0~5의 정수를 나타낸다. m은 0~4의 정수를 나타낸다. n은 0~4의 정수를 나타낸다. *는 결합손을 나타낸다. l이 2~5, m이 2~4, n이 2~4인 경우, 복수 존재하는 R14는, 각각 동일해도 되고 상이해도 된다.][In General Formulas (1-1), (1-2), and (1-3), R 14 represents an alkyl group having 1 to 6 carbon atoms. l represents the integer of 0-5. m represents the integer of 0-4. n represents the integer of 0-4. * Represents a binding hand. When l is 2 to 5, m is 2 to 4, and n is 2 to 4, a plurality of R 14 may be the same or different.]
일반식 (1)로 표시되는 구조 단위를 형성하는 비닐 모노머의 구체예로서는, N,N-디메틸(메타)아크릴아미드, N,N-디에틸(메타)아크릴아미드, N,N-디이소프로필(메타)아크릴아미드 등의 디알킬(메타)아크릴아미드; N-(메타)아크릴로일모르폴린 등의 환상 아미드; N-메톡시메틸아크릴아미드, N-에톡시메틸아크릴아미드 등의 알콕시알킬아크릴아미드 등을 들 수 있다. 이들 중에서도 N,N-디메틸(메타)아크릴아미드, N,N-디에틸(메타)아크릴아미드, N-(메타)아크릴로일모르폴린이 바람직하다.As specific examples of the vinyl monomer forming the structural unit represented by the general formula (1), N,N-dimethyl (meth)acrylamide, N,N-diethyl (meth)acrylamide, N,N-diisopropyl ( Dialkyl (meth)acrylamides such as meth)acrylamide; Cyclic amides such as N-(meth)acryloylmorpholine; Alkoxyalkylacrylamides, such as N-methoxymethylacrylamide and N-ethoxymethylacrylamide, etc. are mentioned. Among these, N,N-dimethyl(meth)acrylamide, N,N-diethyl(meth)acrylamide, and N-(meth)acryloylmorpholine are preferable.
B블록은, 일반식 (1)로 표시되는 구조 단위뿐이어도 되고, 다른 구조 단위가 포함되어 있어도 된다. 착색재와의 친화성을 유지하는 관점에서, B블록 중의 일반식 (1)로 표시되는 구조 단위의 함유율은, B블록 100질량% 중에 있어서 80질량% 이상이 바람직하고, 보다 바람직하게는 90질량% 이상, 더욱 바람직하게는 95질량% 이상이다. 또한, B블록은, 산성기를 갖는 비닐 모노머에서 유래하는 구조 단위를 실질적으로 함유하지 않는 것이 바람직하다. 즉, 산성기를 갖는 비닐 모노머에서 유래하는 구조 단위의 함유율은, B블록 100질량% 중에 있어서, 5질량% 이하가 바람직하고, 2질량% 이하가 보다 바람직하다.The B block may be only the structural unit represented by the general formula (1), or may contain other structural units. From the viewpoint of maintaining affinity with the coloring material, the content of the structural unit represented by the general formula (1) in the B block is preferably 80% by mass or more, and more preferably 90% by mass in 100% by mass of the B block. % Or more, more preferably 95% by mass or more. In addition, it is preferable that the B block does not substantially contain a structural unit derived from a vinyl monomer having an acidic group. That is, the content rate of the structural unit derived from the vinyl monomer having an acidic group is preferably 5% by mass or less, and more preferably 2% by mass or less in 100% by mass of the B block.
B블록의 다른 구조 단위를 형성할 수 있는 비닐 모노머의 구체예로서는, A블록의 다른 구조 단위를 형성할 수 있는 비닐 모노머의 구체예로서 예시한 것과 동일한 것을 들 수 있다.Specific examples of the vinyl monomer capable of forming the other structural units of the B block include the same ones exemplified as the specific examples of the vinyl monomer capable of forming the other structural units of the A block.
B블록에 있어서 2종 이상의 구조 단위가 함유되는 경우는, B블록에 함유되는 각종 구조 단위는, B블록 중에 있어서 랜덤 공중합, 블록 공중합 등 중 어느 양태로 함유되어 있어도 되고, 균일성의 관점에서 랜덤 공중합의 양태로 함유되어 있는 것이 바람직하다. 예를 들면, B블록이, b1블록으로 이루어지는 구조 단위와 b2블록으로 이루어지는 구조 단위의 공중합체에 의하여 형성되어 있어도 된다.When two or more types of structural units are contained in the B block, various structural units contained in the B block may be contained in any of random copolymerization, block copolymerization, etc. in the B block, and random copolymerization from the viewpoint of uniformity. It is preferably contained in the form of. For example, the B block may be formed by a copolymer of a structural unit composed of a b1 block and a structural unit composed of a b2 block.
(블록 공중합체)(Block copolymer)
상기 블록 공중합체의 구조는, 선상 블록 공중합체인 것이 바람직하다. 또한, 선상 블록 공중합체는, 어느 구조(배열)여도 되지만, 선상 블록 공중합체의 물성, 또는 조성물의 물성의 관점에서, A블록을 A, B블록을 B라고 표현했을 때, (A-B)m형, (A-B)m-A형, (B-A)m-B형(m은 1 이상의 정수, 예를 들면 1~3의 정수)으로 이루어지는 군으로부터 선택되는 적어도 1종의 구조를 갖는 공중합체인 것이 바람직하다. 이들 중에서도, 가공 시의 취급성, 조성물의 물성의 관점에서, A-B형 디블록 공중합체인 것이 바람직하다. A-B형 디블록 공중합체를 구성함으로써, A블록에 갖는 (메타)아크릴 모노머에서 유래하는 구조 단위와, B블록에 갖는 일반식 (1)로 표시되는 구조 단위가 국재화하여, 효율적으로 착색재와, 분산 매체(용매), 바인더 수지(알칼리 가용성 수지)와 적합하게 작용할 수 있다고 생각된다. 상기 블록 공중합체는, A블록 및 B블록 이외의 다른 블록을 갖고 있어도 된다.It is preferable that the structure of the block copolymer is a linear block copolymer. In addition, the linear block copolymer may have any structure (arrangement), but from the viewpoint of the physical properties of the linear block copolymer or the physical properties of the composition, when the A block is expressed as A and the B block is B, (AB) m- type , (AB) m -A type, (BA) m -B type (m is an integer of 1 or more, for example, an integer of 1 to 3) It is preferably a copolymer having at least one structure selected from the group consisting of . Among these, it is preferable that it is an AB-type diblock copolymer from the viewpoint of handling properties during processing and physical properties of the composition. By constituting the AB-type diblock copolymer, the structural unit derived from the (meth)acrylic monomer contained in the A block and the structural unit represented by the general formula (1) contained in the B block are localized, thereby efficiently producing a coloring material and , It is thought that it can act suitably with a dispersion medium (solvent), and a binder resin (alkali-soluble resin). The block copolymer may have blocks other than the A block and the B block.
A블록의 함유율은, 블록 공중합체 전체 100질량% 중에 있어서, 35질량% 이상이 바람직하고, 보다 바람직하게는 40질량% 이상, 더욱 바람직하게는 45질량% 이상이며, 85질량% 이하가 바람직하고, 보다 바람직하게는 80질량% 이하, 더욱 바람직하게는 75질량% 이하이다. B블록의 함유율은, 블록 공중합체 전체 100질량% 중에 있어서, 15질량% 이상이 바람직하고, 보다 바람직하게는 20질량% 이상, 더욱 바람직하게는 25질량% 이상이며, 65질량% 이하가 바람직하고, 보다 바람직하게는 60질량% 이하, 더욱 바람직하게는 55질량% 이하이다. A블록 및 B블록의 함유율을, 상기 범위 내로 조정함으로써, 분산제로서 사용했을 때의 분산 성능이 한층 더 향상된다.The content rate of the block A is preferably 35% by mass or more, more preferably 40% by mass or more, still more preferably 45% by mass or more, and preferably 85% by mass or less in the total 100% by mass of the block copolymer. , More preferably, it is 80 mass% or less, More preferably, it is 75 mass% or less. The content rate of the B block is preferably 15% by mass or more, more preferably 20% by mass or more, still more preferably 25% by mass or more, and 65% by mass or less in the total 100% by mass of the block copolymer. , More preferably, it is 60 mass% or less, More preferably, it is 55 mass% or less. By adjusting the content rates of the A block and the B block within the above range, the dispersion performance when used as a dispersant is further improved.
블록 공중합체 중의 A블록과 B블록의 질량비(A블록/B블록)는, 50/50 이상이 바람직하고, 보다 바람직하게는 55/45 이상, 더욱 바람직하게는 60/40 이상이며, 95/5 이하가 바람직하고, 보다 바람직하게는 90/10 이하, 더욱 바람직하게는 80/20 이하이다. A블록과 B블록의 질량비가 상기 범위 내이면, 분산제로서 사용했을 때의 분산 성능이 한층 더 향상된다.The mass ratio of the A block and the B block in the block copolymer (A block/B block) is preferably 50/50 or more, more preferably 55/45 or more, still more preferably 60/40 or more, and 95/5 The following are preferable, more preferably 90/10 or less, and still more preferably 80/20 or less. When the mass ratio of the A block and the B block is within the above range, the dispersion performance when used as a dispersant is further improved.
상기 블록 공중합체가 산성기를 갖는 구조 단위를 함유하는 경우, 상기 블록 공중합체에 있어서의 산성기를 갖는 비닐 모노머에서 유래하는 구조 단위의 함유율은, 1질량% 이상이 바람직하고, 10질량% 이하가 바람직하다.When the block copolymer contains a structural unit having an acidic group, the content of the structural unit derived from a vinyl monomer having an acidic group in the block copolymer is preferably 1% by mass or more, and preferably 10% by mass or less. Do.
상기 블록 공중합체에 있어서의 상기 일반식 (1)로 표시되는 구조 단위의 함유율은, 5질량% 이상이 바람직하고, 보다 바람직하게는 10질량% 이상, 더욱 바람직하게는 20질량% 이상이며, 50질량% 이하가 바람직하고, 보다 바람직하게는 45질량% 이하, 더욱 바람직하게는 40질량% 이하이다.The content rate of the structural unit represented by the general formula (1) in the block copolymer is preferably 5% by mass or more, more preferably 10% by mass or more, still more preferably 20% by mass or more, and 50 The mass% or less is preferable, more preferably 45 mass% or less, and still more preferably 40 mass% or less.
상기 블록 공중합체의 분자량은, 겔 침투 크로마토그래피(이하 「GPC」라고 한다)법에 의하여 측정된다. 상기 블록 공중합체의 중량 평균 분자량(Mw)은 3,000 이상이 바람직하고, 보다 바람직하게는 4,000 이상, 더욱 바람직하게는 5,000 이상이며, 특히 바람직하게는 6,000 이상이고, 40,000 이하가 바람직하며, 보다 바람직하게는 30,000 이하, 더욱 바람직하게는 25,000 이하이고, 특히 바람직하게는 20,000 이하이다. 중량 평균 분자량이 상기 범위 내에 있으면, 분산제로서 사용했을 때의 분산 성능이 보다 양호해진다.The molecular weight of the block copolymer is measured by gel permeation chromatography (hereinafter referred to as "GPC"). The weight average molecular weight (Mw) of the block copolymer is preferably 3,000 or more, more preferably 4,000 or more, further preferably 5,000 or more, particularly preferably 6,000 or more, preferably 40,000 or less, and more preferably Is 30,000 or less, more preferably 25,000 or less, and particularly preferably 20,000 or less. When the weight average molecular weight is within the above range, the dispersion performance when used as a dispersant becomes more favorable.
상기 블록 공중합체의 분자량 분포(PDI)는, 2.5 이하가 바람직하고, 보다 바람직하게는 2.0 이하, 더욱 바람직하게는 1.6 이하이다. 또한, 본 발명에 있어서, 분자량 분포(PDI)란, (블록 공중합체의 중량 평균 분자량(Mw))/(블록 공중합체의 수평균 분자량(Mn))에 의하여 구해지는 것이다. PDI가 작을수록 분자량 분포의 폭이 좁은, 분자량이 균일한 공중합체가 되고, 그 값이 1.0일 때 가장 분자량 분포의 폭이 좁다. 즉, PDI의 하한값은 1.0이다. 블록 공중합체의 분자량 분포(PDI)가, 2.5를 초과하면, 분자량이 작은 것이나, 분자량이 큰 것이 포함되게 된다.The molecular weight distribution (PDI) of the block copolymer is preferably 2.5 or less, more preferably 2.0 or less, and still more preferably 1.6 or less. In addition, in this invention, molecular weight distribution (PDI) is what is calculated|required by (weight average molecular weight (Mw) of a block copolymer)/(number average molecular weight (Mn) of a block copolymer). The smaller the PDI, the narrower the molecular weight distribution and the homogeneous molecular weight copolymer becomes, and when the value is 1.0, the width of the molecular weight distribution is narrowest. That is, the lower limit of PDI is 1.0. If the molecular weight distribution (PDI) of the block copolymer exceeds 2.5, those having a small molecular weight or a large molecular weight will be included.
상기 블록 공중합체는, 경시적인 포름알데하이드의 발생량을 저감시키는 관점에서, 아미노기를 갖지 않는 것이 바람직하다. 즉, 블록 공중합체를 구성하는 비닐 모노머에는, 아미노기를 갖는 비닐 모노머를 함유하지 않는 것이 바람직하다. 블록 공중합체 중의 아미노기를 갖는 비닐 모노머에서 유래하는 구조 단위(아미노기가 4급화되어 있는 것을 포함한다.)의 함유율은, 2질량% 이하가 바람직하고, 보다 바람직하게는 1질량% 이하, 더욱 바람직하게는 0.1질량% 이하, 가장 바람직하게는 0질량%이다. 또한, 상기 블록 공중합체의 아민가는, 10mgKOH/g 미만이 바람직하고, 보다 바람직하게는 5mgKOH/g 미만, 더욱 바람직하게는 3mgKOH/g 미만이며, 가장 바람직하게는 0mgKOH/g이다.It is preferable that the block copolymer does not have an amino group from the viewpoint of reducing the amount of formaldehyde generated over time. That is, it is preferable that the vinyl monomer constituting the block copolymer does not contain a vinyl monomer having an amino group. The content rate of the structural unit derived from the vinyl monomer having an amino group in the block copolymer (including those in which the amino group is quaternized) is preferably 2% by mass or less, more preferably 1% by mass or less, and still more preferably Is 0.1% by mass or less, most preferably 0% by mass. In addition, the amine value of the block copolymer is preferably less than 10 mgKOH/g, more preferably less than 5 mgKOH/g, still more preferably less than 3 mgKOH/g, and most preferably 0 mgKOH/g.
상기 블록 공중합체가 산성기를 갖는 구조 단위를 함유하는 경우, 블록 공중합체의 산가는, 5mgKOH/g 이상이 바람직하고, 50mgKOH/g 이하가 바람직하다. 산가를 이 범위로 함으로써, 블록 공중합체의 착색재와의 친화성을 해치는 일 없이, 바인더 수지(알칼리 가용성 수지)와 적합하게 작용할 수 있다.When the block copolymer contains a structural unit having an acidic group, the acid value of the block copolymer is preferably 5 mgKOH/g or more and 50 mgKOH/g or less. By setting the acid value in this range, it can work suitably with the binder resin (alkali-soluble resin) without impairing the affinity with the coloring material of a block copolymer.
(블록 공중합체의 제조 방법)(Method for producing block copolymer)
상기 블록 공중합체의 제조 방법으로서는, 비닐 모노머의 중합 반응에 의하여, A블록을 먼저 제조하고, A블록에 B블록의 모노머를 중합하는 방법; B블록을 먼저 제조하고, B블록에 A블록의 모노머를 중합하는 방법; A블록과 B블록을 따로 따로 제조한 후, A블록과 B블록을 커플링하는 방법 등을 들 수 있다.As a method for producing the block copolymer, a method of first preparing a block A by polymerization of a vinyl monomer, and polymerizing a block B monomer to the block A; A method of first preparing a B block and polymerizing a monomer of the A block on the B block; After separately manufacturing the A block and the B block, a method of coupling the A block and the B block may be mentioned.
중합법은 특별히 한정되지 않지만, 리빙 라디칼 중합이 바람직하다. 즉, 상기 블록 공중합체로서는, 리빙 라디칼 중합에 의하여 중합된 것이 바람직하다. 종래의 라디칼 중합법은, 개시 반응, 성장 반응뿐만이 아니라, 정지 반응, 연쇄 이동 반응에 의하여 성장 말단의 활성 상실이 일어나, 다양한 분자량, 불균일한 조성의 폴리머의 혼합물이 되기 쉬운 경향이 있다. 이에 반해 리빙 라디칼 중합법은, 종래의 라디칼 중합법의 간편성과 범용성을 유지하면서, 정지 반응이나, 연쇄 이동이 일어나기 어렵고, 성장 말단이 활성 상실하는 일 없이 성장하기 때문에, 분자량 분포의 정밀 제어, 균일한 조성의 폴리머의 제조가 용이한 점에서 바람직하다.Although the polymerization method is not particularly limited, living radical polymerization is preferred. That is, as the block copolymer, it is preferable that the block copolymer is polymerized by living radical polymerization. In the conventional radical polymerization method, not only the initiation reaction and the growth reaction, but also the stop reaction and the chain transfer reaction cause loss of activity at the growth end, which tends to become a mixture of polymers of various molecular weights and non-uniform composition. On the other hand, the living radical polymerization method maintains the simplicity and versatility of the conventional radical polymerization method, while the stop reaction or chain transfer is difficult to occur, and the growth end grows without loss of activity, so precise control of the molecular weight distribution and uniformity It is preferable because it is easy to prepare a polymer of one composition.
리빙 라디칼 중합법에는, 중합 성장 말단을 안정화시키는 수법의 차이에 의하여, 천이 금속 촉매를 이용하는 방법(ATRP법); 황계의 가역적 연쇄 이동제를 이용하는 방법(RAFT법); 유기 텔루륨 화합물을 이용하는 방법(TERP법) 등의 방법이 있다. ATRP법은, 아민계 착체를 사용하기 때문에, 산성기를 갖는 비닐 모노머의 산성기를 보호하지 않고 사용할 수 없는 경우가 있다. RAFT법은, 다종의 모노머를 사용한 경우, 저분자량 분포가 되기 힘들고, 또한 황 냄새나 착색 등의 문제가 있는 경우가 있다. 이들 방법 중에서도, 사용할 수 있는 모노머의 다양성, 고분자 영역에서의 분자량 제어, 균일한 조성, 혹은 착색의 관점에서, TERP법을 이용하는 것이 바람직하다.The living radical polymerization method includes a method of using a transition metal catalyst (ATRP method) according to a difference in the method of stabilizing the polymerization growth terminal; A method using a sulfur-based reversible chain transfer agent (RAFT method); There are methods such as a method of using an organic tellurium compound (TERP method). Since the ATRP method uses an amine complex, there are cases where it cannot be used without protecting the acidic group of the vinyl monomer having an acidic group. In the RAFT method, when various types of monomers are used, it is difficult to obtain a low molecular weight distribution, and there may be problems such as sulfur odor and coloring. Among these methods, it is preferable to use the TERP method from the viewpoint of diversity of monomers that can be used, molecular weight control in the polymer region, uniform composition, or coloring.
TERP법이란, 유기 텔루륨 화합물을 연쇄 이동제로서 이용하여, 라디칼 중합성 화합물(비닐 모노머)을 중합시키는 방법이며, 예를 들면, 국제 공개 제2004/14848호, 국제 공개 제2004/14962호, 국제 공개 제2004/072126호, 및 국제 공개 제2004/096870호에 기재된 방법이다.The TERP method is a method of polymerizing a radically polymerizable compound (vinyl monomer) by using an organic tellurium compound as a chain transfer agent. For example, International Publication No. 2004/14848, International Publication No. 2004/14962, International Publication No. It is a method described in Publication No. 2004/072126 and International Publication No. 2004/096870.
TERP법의 구체적인 중합법으로서는, 하기 (a)~(d)를 들 수 있다.As a specific polymerization method of the TERP method, the following (a) to (d) can be mentioned.
(a) 비닐 모노머를, 일반식 (3)으로 표시되는 유기 텔루륨 화합물을 이용하여 중합한다.(a) A vinyl monomer is polymerized using an organic tellurium compound represented by the general formula (3).
(b) 비닐 모노머를, 일반식 (3)으로 표시되는 유기 텔루륨 화합물과 아조계 중합 개시제의 혼합물을 이용하여 중합한다.(b) A vinyl monomer is polymerized using a mixture of an organic tellurium compound represented by the general formula (3) and an azo polymerization initiator.
(c) 비닐 모노머를, 일반식 (3)으로 표시되는 유기 텔루륨 화합물과 일반식 (4)로 표시되는 유기 디텔루라이드 화합물의 혼합물을 이용하여 중합한다.(c) A vinyl monomer is polymerized using a mixture of an organic tellurium compound represented by the general formula (3) and an organic ditelluride compound represented by the general formula (4).
(d) 비닐 모노머를, 일반식 (3)으로 표시되는 유기 텔루륨 화합물과 아조계 중합 개시제와 일반식 (4)로 표시되는 유기 디텔루라이드 화합물의 혼합물을 이용하여 중합한다.(d) A vinyl monomer is polymerized using a mixture of an organic tellurium compound represented by the general formula (3), an azo polymerization initiator, and an organic ditelluride compound represented by the general formula (4).
[일반식 (3)에 있어서, R31은, 탄소수 1~8의 알킬기, 아릴기 또는 방향족 헤테로환기를 나타낸다. R32 및 R33은, 각각 독립적으로, 수소 원자 또는 탄소수 1~8의 알킬기를 나타낸다. R34는, 탄소수 1~8의 알킬기, 아릴기, 치환 아릴기, 방향족 헤테로환기, 알콕시기, 아실기, 아미드기, 옥시카르보닐기, 시아노기, 알릴기 또는 프로파르길기를 나타낸다.[In General Formula (3), R 31 represents an alkyl group having 1 to 8 carbon atoms, an aryl group, or an aromatic heterocyclic group. R 32 and R 33 each independently represent a hydrogen atom or an alkyl group having 1 to 8 carbon atoms. R 34 represents an alkyl group having 1 to 8 carbon atoms, an aryl group, a substituted aryl group, an aromatic heterocyclic group, an alkoxy group, an acyl group, an amide group, an oxycarbonyl group, a cyano group, an allyl group or a propargyl group.
일반식 (4)에 있어서, R31은, 탄소수 1~8의 알킬기, 아릴기 또는 방향족 헤테로환기를 나타낸다.]In General Formula (4), R 31 represents a C 1 to C 8 alkyl group, an aryl group, or an aromatic heterocyclic group.]
R31로 나타내어지는 기는, 탄소수 1~8의 알킬기, 아릴기 또는 방향족 헤테로환기이며, 구체적으로는 다음과 같다.The group represented by R 31 is an alkyl group, an aryl group or an aromatic heterocyclic group having 1 to 8 carbon atoms, and is specifically as follows.
탄소수 1~8의 알킬기로서는, 메틸기, 에틸기, n-프로필기, 이소프로필기, n-부틸기, 이소부틸기, sec-부틸기, tert-부틸기, 펜틸기, 헥실기, 헵틸기, 옥틸기 등의 직쇄 또는 분기쇄 알킬기나, 시클로헥실기 등의 환상 알킬기 등을 들 수 있다. 바람직하게는 탄소수 1~4의 직쇄 또는 분기쇄 알킬기이며, 더욱 바람직하게는 메틸기 또는 에틸기이다.Examples of the alkyl group having 1 to 8 carbon atoms include methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, isobutyl group, sec-butyl group, tert-butyl group, pentyl group, hexyl group, heptyl group, oxy Linear or branched chain alkyl groups, such as a yl group, and cyclic alkyl groups, such as a cyclohexyl group, etc. are mentioned. Preferably, it is a C1-C4 linear or branched chain alkyl group, More preferably, it is a methyl group or an ethyl group.
아릴기로서는, 페닐기, 나프틸기 등을 들 수 있다.Examples of the aryl group include a phenyl group and a naphthyl group.
방향족 헤테로환기로서는, 피리딜기, 푸릴기, 티에닐기 등을 들 수 있다.Examples of the aromatic heterocyclic group include a pyridyl group, a furyl group, and a thienyl group.
R32 및 R33으로 나타내어지는 기는, 각각 독립적으로 수소 원자 또는 탄소수 1~8의 알킬기이며, 각 기는, 구체적으로는 다음과 같다.The groups represented by R 32 and R 33 are each independently a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, and each group is specifically as follows.
탄소수 1~8의 알킬기로서는, 메틸기, 에틸기, n-프로필기, 이소프로필기, n-부틸기, 이소부틸기, sec-부틸기, tert-부틸기, 펜틸기, 헥실기, 헵틸기, 옥틸기 등의 직쇄 또는 분기쇄 알킬기나, 시클로헥실기 등의 환상 알킬기 등을 들 수 있다. 바람직하게는 탄소수 1~4의 직쇄 또는 분기쇄 알킬기이며, 더욱 바람직하게는 메틸기 또는 에틸기이다.Examples of the alkyl group having 1 to 8 carbon atoms include methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, isobutyl group, sec-butyl group, tert-butyl group, pentyl group, hexyl group, heptyl group, oxy Linear or branched chain alkyl groups, such as a yl group, and cyclic alkyl groups, such as a cyclohexyl group, etc. are mentioned. Preferably, it is a C1-C4 linear or branched chain alkyl group, More preferably, it is a methyl group or an ethyl group.
R34로 나타내어지는 기는, 탄소수 1~8의 알킬기, 아릴기, 치환 아릴기, 방향족 헤테로환기, 알콕시기, 아실기, 아미드기, 옥시카르보닐기, 시아노기, 알릴기 또는 프로파르길기이며, 구체적으로는 다음과 같다.The group represented by R 34 is an alkyl group having 1 to 8 carbon atoms, an aryl group, a substituted aryl group, an aromatic heterocyclic group, an alkoxy group, an acyl group, an amide group, an oxycarbonyl group, a cyano group, an allyl group or a propargyl group, and specifically Is as follows.
탄소수 1~8의 알킬기로서는, 메틸기, 에틸기, n-프로필기, 이소프로필기, n-부틸기, 이소부틸기, sec-부틸기, tert-부틸기, 펜틸기, 헥실기, 헵틸기, 옥틸기 등의 직쇄 또는 분기쇄 알킬기, 시클로헥실기 등의 환상 알킬기 등을 들 수 있다. 바람직하게는 탄소수 1~4의 직쇄 또는 분기쇄 알킬기이며, 더욱 바람직하게는 메틸기 또는 에틸기이다.Examples of the alkyl group having 1 to 8 carbon atoms include methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, isobutyl group, sec-butyl group, tert-butyl group, pentyl group, hexyl group, heptyl group, oxy Linear or branched chain alkyl groups such as a tyl group, and cyclic alkyl groups such as a cyclohexyl group, etc. are mentioned. Preferably, it is a C1-C4 linear or branched chain alkyl group, More preferably, it is a methyl group or an ethyl group.
아릴기로서는, 페닐기, 나프틸기 등을 들 수 있다. 바람직하게는 페닐기이다.Examples of the aryl group include a phenyl group and a naphthyl group. Preferably it is a phenyl group.
치환 아릴기로서는, 치환기를 갖고 있는 페닐기, 치환기를 갖고 있는 나프틸기 등을 들 수 있다. 상기 치환기를 갖고 있는 아릴기의 치환기로서는, 예를 들면, 할로겐 원자, 하이드록시기, 알콕시기, 아미노기, 니트로기, 시아노기, -COR341로 나타내어지는 카르보닐 함유기(R341은 탄소수 1~8의 알킬기, 아릴기, 탄소수 1~8의 알콕시기 또는 아릴옥시기), 설포닐기, 트리플루오로메틸기 등을 들 수 있다. 또한, 이들 치환기는, 1개 또는 2개 치환하고 있는 것이 좋다.Examples of the substituted aryl group include a phenyl group having a substituent and a naphthyl group having a substituent. As the substituent of the aryl group having the above substituent, for example, a halogen atom, a hydroxy group, an alkoxy group, an amino group, a nitro group, a cyano group, a carbonyl-containing group represented by -COR 341 (R 341 has 1 to carbon atoms). 8 alkyl group, aryl group, C1-C8 alkoxy group or aryloxy group), a sulfonyl group, a trifluoromethyl group, etc. are mentioned. In addition, it is good to substitute 1 or 2 of these substituents.
방향족 헤테로환기로서는, 피리딜기, 푸릴기, 티에닐기 등을 들 수 있다.Examples of the aromatic heterocyclic group include a pyridyl group, a furyl group, and a thienyl group.
알콕시기로서는, 탄소수 1~8의 알킬기가 산소 원자에 결합한 기가 바람직하고, 예를 들면, 메톡시기, 에톡시기, 프로폭시기, 이소프로폭시기, n-부톡시기, sec-부톡시기, tert-부톡시기, 펜틸옥시기, 헥실옥시기, 헵틸옥시기, 옥틸옥시기 등을 들 수 있다.As the alkoxy group, a group in which an alkyl group having 1 to 8 carbon atoms is bonded to an oxygen atom is preferable. For example, a methoxy group, ethoxy group, propoxy group, isopropoxy group, n-butoxy group, sec-butoxy group, tert- Butoxy group, pentyloxy group, hexyloxy group, heptyloxy group, octyloxy group, etc. are mentioned.
아실기로서는, 아세틸기, 프로피오닐기, 벤조일기 등을 들 수 있다.Examples of the acyl group include an acetyl group, a propionyl group, and a benzoyl group.
아미드기로서는, -CONR3421R3422(R3421, R3422는, 각각 독립적으로 수소 원자, 탄소수 1~8의 알킬기 또는 아릴기)를 들 수 있다.Examples of the amide group include -CONR 3421 R 3422 (R 3421 and R 3422 are each independently a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, or an aryl group).
옥시카르보닐기로서는, -COOR3431(R3431은 수소 원자, 탄소수 1~8의 알킬기 또는 아릴기)로 나타내어지는 기가 바람직하고, 예를 들면 카르복시기, 메톡시카르보닐기, 에톡시카르보닐기, 프로폭시카르보닐기, n-부톡시카르보닐기, sec-부톡시카르보닐기, tert-부톡시카르보닐기, n-펜틸옥시카르보닐기, 페녹시카르보닐기 등을 들 수 있다. 바람직한 옥시카르보닐기로서는, 메톡시카르보닐기, 에톡시카르보닐기를 들 수 있다.As the oxycarbonyl group, a group represented by -COOR 3431 (R 3431 is a hydrogen atom, an alkyl group or an aryl group having 1 to 8 carbon atoms) is preferable. For example, a carboxyl group, a methoxycarbonyl group, an ethoxycarbonyl group, a propoxycarbonyl group, n- Butoxycarbonyl group, sec-butoxycarbonyl group, tert-butoxycarbonyl group, n-pentyloxycarbonyl group, phenoxycarbonyl group, and the like. As a preferable oxycarbonyl group, a methoxycarbonyl group and an ethoxycarbonyl group are mentioned.
알릴기로서는, -CR3441R3442-CR3443=CR3444R3445(R3441, R3442는, 각각 독립적으로 수소 원자 또는 탄소수 1~8의 알킬기, R3443, R3444, R3445는, 각각 독립적으로 수소 원자, 탄소수 1~8의 알킬기 또는 아릴기이며, 각각의 치환기가 환상 구조로 연결되어 있어도 된다) 등을 들 수 있다.As the allyl group, -CR 3441 R 3442 -CR 3443 =CR 3444 R 3445 (R 3441 , R 3442 are each independently a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, R 3443 , R 3444 , R 3445 are each independently Examples thereof include a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, or an aryl group, and each substituent may be connected in a cyclic structure).
프로파르길기로서는, -CR3451R3452-C≡CR3453(R3451, R3452는, 수소 원자 또는 탄소수 1~8의 알킬기, R3453은, 수소 원자, 탄소수 1~8의 알킬기, 아릴기 또는 실릴기) 등을 들 수 있다.Examples of pro Parr long, -CR 3451 R 3452 -C≡CR 3453 ( R 3451, R 3452 is a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, R 3453 is a hydrogen atom, alkyl group having 1 to 8 carbon atoms, an aryl group, or Silyl group), etc. are mentioned.
일반식 (3)으로 표시되는 유기 텔루륨 화합물은, 구체적으로는 (메틸텔라닐메틸)벤젠, (메틸텔라닐메틸)나프탈렌, 에틸-2-메틸-2-메틸텔라닐-프로피오네이트, 에틸-2-메틸-2-n-부틸텔라닐-프로피오네이트, (2-트리메틸실록시에틸)-2-메틸-2-메틸텔라닐-프로피오네이트, (2-하이드록시에틸)-2-메틸-2-메틸텔라닐-프로피오네이트 또는 (3-트리메틸실릴프로파르길)-2-메틸-2-메틸텔라닐-프로피오네이트 등, 국제 공개 제2004/14848호, 국제 공개 제2004/14962호, 국제 공개 제2004/072126호, 및 국제 공개 제2004/096870호에 기재된 유기 텔루륨 화합물의 모두를 예시할 수 있다.The organic tellurium compound represented by the general formula (3) is specifically, (methyltelanylmethyl)benzene, (methyltelanylmethyl)naphthalene, ethyl-2-methyl-2-methyltelanyl-propionate, ethyl -2-Methyl-2-n-butyltelanyl-propionate, (2-trimethylsiloxyethyl)-2-methyl-2-methyltelanyl-propionate, (2-hydroxyethyl)-2- Methyl-2-methyltellanyl-propionate or (3-trimethylsilylpropargyl)-2-methyl-2-methyltellanyl-propionate, etc., International Publication No. 2004/14848, International Publication No. 2004/ All of the organic tellurium compounds described in 14962, International Publication No. 2004/072126, and International Publication No. 2004/096870 can be illustrated.
일반식 (4)로 표시되는 유기 디텔루라이드 화합물의 구체예로서는, 디메틸디텔루라이드, 디에틸디텔루라이드, 디-n-프로필디텔루라이드, 디이소프로필디텔루라이드, 디시클로프로필디텔루라이드, 디-n-부틸디텔루라이드, 디-s-부틸디텔루라이드, 디-t-부틸디텔루라이드, 디시클로부틸디텔루라이드, 디페닐디텔루라이드, 비스-(p-메톡시페닐)디텔루라이드, 비스-(p-아미노페닐)디텔루라이드, 비스-(p-니트로페닐)디텔루라이드, 비스-(p-시아노페닐)디텔루라이드, 비스-(p-설포닐페닐)디텔루라이드, 디나프틸디텔루라이드 또는 디피리딜디텔루라이드 등을 예시할 수 있다.Specific examples of the organic ditelluride compound represented by the general formula (4) include dimethylditelluride, diethylditelluride, di-n-propylditelluride, diisopropylditelluride, and dicyclopropylditelluride. , Di-n-butylditelluride, di-s-butylditelluride, di-t-butylditelluride, dicyclobutylditelluride, diphenylditelluride, bis-(p-methoxyphenyl) Ditelluride, bis-(p-aminophenyl)ditelluride, bis-(p-nitrophenyl)ditelluride, bis-(p-cyanophenyl)ditelluride, bis-(p-sulfonylphenyl) Ditelluride, dinaphthylditelluride, dipyridylditelluride, and the like can be exemplified.
아조계 중합 개시제는, 통상의 라디칼 중합에서 사용하는 아조계 중합 개시제라면 특별히 제한 없이 사용할 수 있다. 예를 들면, 2,2'-아조비스(이소부티로니트릴)(AIBN), 2,2'-아조비스(2-메틸부티로니트릴)(AMBN), 2,2'-아조비스(2,4-디메틸발레로니트릴)(ADVN), 1,1'-아조비스(1-시클로헥산카르보니트릴)(ACHN), 디메틸-2,2'-아조비스이소부티레이트(MAIB), 4,4'-아조비스(4-시아노발레리안산)(ACVA), 1,1'-아조비스(1-아세톡시-1-페닐에탄), 2,2'-아조비스(2-메틸부틸아미드), 2,2'-아조비스(4-메톡시-2,4-디메틸발레로니트릴)(V-70), 2,2'-아조비스(2-메틸아미디노프로판) 이염산염, 2,2'-아조비스[2-(2-이미다졸린-2-일)프로판], 2,2'-아조비스[2-메틸-N-(2-하이드록시에틸)프로피온아미드], 2,2'-아조비스(2,4,4-트리메틸펜탄), 2-시아노-2-프로필아조포름아미드, 2,2'-아조비스(N-부틸-2-메틸프로피온아미드), 또는 2,2'-아조비스(N-시클로헥실-2-메틸프로피온아미드) 등을 예시할 수 있다.The azo-based polymerization initiator can be used without particular limitation as long as it is an azo-based polymerization initiator used in ordinary radical polymerization. For example, 2,2'-azobis (isobutyronitrile) (AIBN), 2,2'-azobis (2-methylbutyronitrile) (AMBN), 2,2'-azobis (2, 4-Dimethylvaleronitrile) (ADVN), 1,1'-azobis (1-cyclohexanecarbonitrile) (ACHN), dimethyl-2,2'-azobisisobutyrate (MAIB), 4,4'- Azobis (4-cyanovaleric acid) (ACVA), 1,1'-azobis (1-acetoxy-1-phenylethane), 2,2'-azobis (2-methylbutylamide), 2, 2'-azobis(4-methoxy-2,4-dimethylvaleronitrile)(V-70), 2,2'-azobis(2-methylamidinopropane) dihydrochloride, 2,2'-azo Bis[2-(2-imidazolin-2-yl)propane], 2,2'-azobis[2-methyl-N-(2-hydroxyethyl)propionamide], 2,2'-azobis (2,4,4-trimethylpentane), 2-cyano-2-propylazoformamide, 2,2'-azobis (N-butyl-2-methylpropionamide), or 2,2'-azobis (N-cyclohexyl-2-methylpropionamide) etc. can be illustrated.
중합 공정은, 불활성 가스로 치환한 용기에서, 비닐 모노머와 일반식 (3)의 유기 텔루륨 화합물과, 비닐 모노머의 종류에 따라 반응 촉진, 분자량 및 분자량 분포의 제어 등의 목적으로, 추가로 아조계 중합 개시제 및/또는 일반식 (4)의 유기 디텔루라이드 화합물을 혼합한다. 이때, 불활성 가스로서는, 질소, 아르곤, 헬륨 등을 들 수 있다. 바람직하게는, 아르곤, 질소가 좋다.The polymerization process is carried out in a container substituted with an inert gas, for the purpose of accelerating the reaction, controlling the molecular weight and molecular weight distribution, etc., depending on the type of the vinyl monomer, the organic tellurium compound of the general formula (3), and the vinyl monomer. The crude polymerization initiator and/or the organic ditelluride compound of the general formula (4) are mixed. At this time, nitrogen, argon, helium, etc. are mentioned as an inert gas. Preferably, argon and nitrogen are good.
상기 (a), (b), (c) 및 (d)에 있어서의 비닐 모노머의 사용량은, 목적으로 하는 공중합체의 물성에 따라 적절히 조절하면 된다. 일반식 (3)의 유기 텔루륨 화합물 1mol에 대하여 비닐 모노머를 5mol~10000mol로 하는 것이 바람직하다.The amount of the vinyl monomer used in the above (a), (b), (c) and (d) may be appropriately adjusted according to the properties of the target copolymer. It is preferable to make 5 mol-10000 mol of a vinyl monomer with respect to 1 mol of the organic tellurium compound of general formula (3).
상기 (b)의 일반식 (3)의 유기 텔루륨 화합물과 아조계 중합 개시제를 병용하는 경우, 일반식 (3)의 유기 텔루륨 화합물 1mol에 대하여 아조계 중합 개시제를 0.01mol~10mol로 하는 것이 바람직하다.When the organic tellurium compound of the general formula (3) and an azo polymerization initiator are used in combination, the azo polymerization initiator is 0.01 mol to 10 mol with respect to 1 mol of the organic tellurium compound of the general formula (3). desirable.
상기 (c)의 일반식 (3)의 유기 텔루륨 화합물과 일반식 (4)의 유기 디텔루라이드 화합물을 병용하는 경우, 일반식 (3)의 유기 텔루륨 화합물 1mol에 대하여 일반식 (4)의 유기 디텔루라이드 화합물을 0.01mol~100mol로 하는 것이 바람직하다.When the organic tellurium compound of the general formula (3) of the above (c) and the organic ditelluride compound of the general formula (4) are used in combination, with respect to 1 mol of the organic tellurium compound of the general formula (3), the general formula (4) It is preferable to set the organic ditelluride compound of 0.01 mol to 100 mol.
상기 (d)의 일반식 (3)의 유기 텔루륨 화합물과 일반식 (4)의 유기 디텔루라이드 화합물과 아조계 중합 개시제를 병용하는 경우, 일반식 (3)의 유기 텔루륨 화합물 1mol에 대하여 일반식 (4)의 유기 디텔루라이드 화합물을 0.01mol~100mol로 하는 것이 바람직하고, 일반식 (3)의 유기 텔루륨 화합물 1mol에 대하여 아조계 중합 개시제를 0.01mol~10mol로 하는 것이 바람직하다.When the organic tellurium compound of the general formula (3) of the above (d), the organic ditelluride compound of the general formula (4), and an azo polymerization initiator are used in combination, with respect to 1 mol of the organic tellurium compound of the general formula (3) The organic ditelluride compound of the general formula (4) is preferably 0.01 mol to 100 mol, and the azo polymerization initiator is preferably 0.01 mol to 10 mol with respect to 1 mol of the organic tellurium compound of the general formula (3).
중합 반응은, 무용매로도 행할 수 있는데, 라디칼 중합에서 일반적으로 사용되는 비(非)프로톤성 용매 또는 프로톤성 용매를 사용하여, 상기 혼합물을 교반하여 행해도 된다. 사용할 수 있는 비프로톤성 용매는, 예를 들면, 아니솔, 벤젠, 톨루엔, N,N-디메틸포름아미드(DMF), 디메틸설폭시드(DMSO), 아세톤, 2-부타논(메틸에틸케톤), 디옥산, 프로필렌글리콜모노메틸에테르아세테이트, 클로로포름, 사염화 탄소, 테트라하이드로푸란(THF), 아세트산 에틸 또는 트리플루오로메틸벤젠 등을 예시할 수 있다. 또한, 프로톤성 용매로서는, 예를 들면, 물, 메탄올, 에탄올, 이소프로판올, n-부탄올, 에틸셀로솔브, 부틸셀로솔브, 1-메톡시-2-프로판올, 헥사플루오로이소프로판올 또는 디아세톤알코올 등을 예시할 수 있다.Although the polymerization reaction can be carried out without a solvent, the mixture may be stirred using a non-protic solvent or a protic solvent generally used in radical polymerization. Aprotic solvents that can be used include, for example, anisole, benzene, toluene, N,N-dimethylformamide (DMF), dimethyl sulfoxide (DMSO), acetone, 2-butanone (methylethylketone), Dioxane, propylene glycol monomethyl ether acetate, chloroform, carbon tetrachloride, tetrahydrofuran (THF), ethyl acetate, trifluoromethylbenzene, etc. can be illustrated. In addition, as a protic solvent, for example, water, methanol, ethanol, isopropanol, n-butanol, ethyl cellosolve, butyl cellosolve, 1-methoxy-2-propanol, hexafluoroisopropanol or diacetone alcohol And the like can be illustrated.
용매의 사용량으로서는, 적절히 조절하면 되고, 예를 들면, 비닐 모노머 1g에 대하여, 0.01ml 이상이 바람직하고, 보다 바람직하게는 0.05ml 이상, 더욱 바람직하게는 0.1ml 이상이며, 50ml 이하가 바람직하고, 보다 바람직하게는 10ml 이하, 더욱 바람직하게는 1ml 이하이다.The amount of the solvent used may be appropriately adjusted, for example, 0.01 ml or more is preferable, more preferably 0.05 ml or more, further preferably 0.1 ml or more, and 50 ml or less is preferable, for example, per 1 g of vinyl monomer, It is more preferably 10 ml or less, and still more preferably 1 ml or less.
반응 온도, 반응 시간은, 얻어지는 공중합체의 분자량 혹은 분자량 분포에 따라 적절히 조절하면 되는데, 통상, 0℃~150℃에서, 1분~100시간 교반한다. TERP법은, 낮은 중합 온도 및 짧은 중합 시간이어도 높은 수율로 정밀한 분자량 분포를 얻을 수 있다. 이때, 압력은, 통상, 상압에서 행해지는데, 가압 또는 감압해도 상관없다.The reaction temperature and the reaction time may be appropriately adjusted according to the molecular weight or molecular weight distribution of the obtained copolymer, but is usually stirred at 0°C to 150°C for 1 minute to 100 hours. The TERP method can obtain a precise molecular weight distribution with a high yield even at a low polymerization temperature and a short polymerization time. At this time, the pressure is usually performed at normal pressure, but may be pressurized or reduced in pressure.
중합 반응의 종료 후, 얻어진 반응 혼합물로부터, 통상의 분리 정제 수단에 의하여, 사용 용매, 잔존 비닐 모노머의 제거 등을 행하여, 목적으로 하는 공중합체를 분리할 수 있다.After completion of the polymerization reaction, the target copolymer can be separated from the obtained reaction mixture by removing the solvent to be used and the residual vinyl monomer by a conventional separation and purification means.
중합 반응에 의하여 얻어지는 공중합체의 성장 말단은, 텔루륨 화합물 유래의 -TeR31(식 중, R31은 상기와 같다)의 형태이며, 중합 반응 종료 후의 공기 중의 조작에 의하여 활성 상실해 가는데, 텔루륨 원자가 잔존하는 경우가 있다. 텔루륨 원자가 말단에 잔존한 공중합체는 착색되거나, 열안정성이 뒤떨어지거나 하기 때문에, 텔루륨 원자를 제거하는 것이 바람직하다.The growth terminal of the copolymer obtained by the polymerization reaction is in the form of -TeR 31 derived from a tellurium compound ( wherein R 31 is the same as above), and its activity is lost by operation in air after the polymerization reaction is completed. There are cases where the lulium atom remains. Since the copolymer in which the tellurium atom remains at the terminal is colored or inferior in thermal stability, it is preferable to remove the tellurium atom.
텔루륨 원자를 제거하는 방법으로서는, 트리부틸스탄난(tributyl stannane) 또는 티올 화합물 등을 이용하는 라디칼 환원 방법; 활성탄, 실리카겔, 활성 알루미나, 활성 백토, 몰레큘러 시브스 및 고분자 흡착제 등으로 흡착하는 방법; 이온 교환 수지 등으로 금속을 흡착하는 방법; 과산화 수소수 또는 과산화 벤조일 등의 과산화물을 첨가하거나 공기 또는 산소를 계 중에 불어 넣음으로써 공중합체 말단의 텔루륨 원자를 산화 분해시키고, 수세나 적절한 용매를 조합함으로써 잔류 텔루륨 화합물을 제거하는 액-액 추출법이나 고-액 추출법; 특정 분자량 이하의 것만을 추출 제거하는 한외 여과 등의 용액 상태에서의 정제 방법을 이용할 수 있고, 또한, 이들 방법을 조합하여 이용할 수도 있다.As a method of removing the tellurium atom, a radical reduction method using tributyl stannane or a thiol compound or the like; A method of adsorbing with activated carbon, silica gel, activated alumina, activated clay, molecular sheaves, and a polymer adsorbent; A method of adsorbing a metal with an ion exchange resin or the like; A liquid-liquid that oxidizes and decomposes the tellurium atom at the end of the copolymer by adding a peroxide such as hydrogen peroxide water or benzoyl peroxide or blowing air or oxygen into the system, and removing residual tellurium compounds by washing with water or combining an appropriate solvent. Extraction or solid-liquid extraction; A purification method in a solution state such as ultrafiltration in which only those having a specific molecular weight or less are extracted and removed can be used, or a combination of these methods can also be used.
또한, 중합 반응에 의하여 얻어지는 공중합체의 다른 쪽 끝(성장 말단과 반대측의 말단)은, 텔루륨 화합물 유래의 -CR32R33R34(식 중, R32, R33 및 R34는, 식 (3) 중의 R32, R33 및 R34와 같다.)의 형태이다.In addition, the other end of the copolymer obtained by the polymerization reaction (the end opposite to the growth end) is -CR 32 R 33 R 34 derived from a tellurium compound (in the formula, R 32 , R 33 and R 34 are represented by the formula It is the same as R 32 , R 33 and R 34 in (3).)
(중합 생성물)(Polymerization product)
상기 분산제 조성물은, 분산제 성분으로서, 상기 블록 공중합체를 함유하는 중합 생성물을 이용해도 된다. 상기 중합 생성물이란, 상기 블록 공중합체를 얻기 위하여 중합 조작을 행했을 때에 얻어지는 생성물을 가리킨다. 상기 중합 생성물에는, 원하는 블록 공중합체와, 이 블록 공중합체를 합성할 때에 부생한 중합체 불순물을 포함한다.As the dispersant composition, as a dispersant component, a polymerization product containing the block copolymer may be used. The polymerization product refers to a product obtained when a polymerization operation is performed in order to obtain the block copolymer. The polymerization product contains a desired block copolymer and a polymer impurity produced by synthesizing the block copolymer.
상기 중합체 불순물이란, 원하는 블록 공중합체를 합성할 때에, 불가피적으로 부생하는 다른 중합체이다. 예를 들면, A-B 디블록 공중합체를 합성할 때에 부생하는 중합체 불순물로서는, A블록과 동일한 조성을 갖는 랜덤 폴리머, B블록과 동일한 조성을 갖는 랜덤 폴리머를 들 수 있다. 또한 중합체 불순물은, 원하는 블록 공중합체를 합성할 때에 부생한 중합체이며, 별도 첨가되는 중합체는 포함하지 않는다.The polymer impurities are other polymers that are inevitably produced when synthesizing a desired block copolymer. For example, as polymer impurities produced by-products when synthesizing the A-B diblock copolymer, a random polymer having the same composition as the A block and a random polymer having the same composition as the B block can be exemplified. In addition, polymer impurities are polymers that are by-products when synthesizing a desired block copolymer, and do not include polymers added separately.
상기 중합 생성물 중의 상기 블록 공중합체의 함유율은, 중합 생성물 100질량% 중, 50질량% 이상이 바람직하다. 중합 생성물 중의 블록 공중합체의 함유율이, 50질량% 이상이면, 중합 생성물을 분산제로서 사용했을 때에, 분산 성능이 향상된다.The content rate of the block copolymer in the polymerization product is preferably 50% by mass or more in 100% by mass of the polymerization product. When the content rate of the block copolymer in the polymerization product is 50% by mass or more, the dispersion performance is improved when the polymerization product is used as a dispersant.
(분산 매체)(Dispersion medium)
상기 분산제 조성물은, 분산 매체를 함유해도 된다. 상기 분산 매체로서는, 블록 공중합체를 분산 또는 용해하고, 또한 이들 성분과 반응하지 않으며, 적당히 휘발성을 갖는 것인 한, 적절히 선택하여 사용할 수 있다. 예를 들면, 종래 공지의 유기 용매를 사용할 수 있고, 예를 들면, 에틸렌글리콜모노메틸에테르, 에틸렌글리콜모노에틸에테르, 에틸렌글리콜모노프로필에테르, 에틸렌글리콜모노부틸에테르, 프로필렌글리콜모노메틸에테르, 프로필렌글리콜모노에틸에테르, 프로필렌글리콜모노-n-부틸에테르, 프로필렌글리콜-t-부틸에테르, 디에틸렌글리콜모노메틸에테르, 디에틸렌글리콜모노에틸에테르, 디에틸렌글리콜모노-n-부틸에테르, 메톡시메틸펜탄올, 메톡시프로판올, 프로필렌글리콜모노에틸에테르, 디프로필렌글리콜모노에틸에테르, 디프로필렌글리콜모노메틸에테르, 3-메틸-3-메톡시부탄올, 트리에틸렌글리콜모노메틸에테르, 트리에틸렌글리콜모노에틸에테르, 트리프로필렌글리콜메틸에테르 등의 글리콜모노알킬에테르류; 에틸렌글리콜디메틸에테르, 에틸렌글리콜디에틸에테르, 디에틸렌글리콜디메틸에테르, 디에틸렌글리콜디에틸에테르, 디에틸렌글리콜디프로필에테르, 디에틸렌글리콜디부틸에테르, 디프로필렌글리콜디메틸에테르 등의 글리콜디알킬에테르류; 에틸렌글리콜모노메틸에테르아세테이트, 에틸렌글리콜모노에틸에테르아세테이트, 에틸렌글리콜모노-n-부틸에테르아세테이트, 프로필렌글리콜모노메틸에테르아세테이트, 프로필렌글리콜모노에틸에테르아세테이트, 프로필렌글리콜모노프로필에테르아세테이트, 프로필렌글리콜모노부틸에테르아세테이트, 메톡시부틸아세테이트, 3-메톡시부틸아세테이트, 메톡시펜틸아세테이트, 디에틸렌글리콜모노메틸에테르아세테이트, 디에틸렌글리콜모노에틸에테르아세테이트, 디에틸렌글리콜모노-n-부틸에테르아세테이트, 디프로필렌글리콜모노메틸에테르아세테이트, 트리에틸렌글리콜모노메틸에테르아세테이트, 트리에틸렌글리콜모노에틸에테르아세테이트, 3-메틸-3-메톡시부틸아세테이트 등의 글리콜알킬에테르아세테이트류; 에틸렌글리콜디아세테이트, 1,3-부틸렌글리콜디아세테이트, 1,6-헥산디올디아세테이트 등의 글리콜디아세테이트류; 시클로헥산올아세테이트 등의 알킬아세테이트류; 아밀에테르, 프로필에테르, 디에틸에테르, 디프로필에테르, 디이소프로필에테르, 부틸에테르, 디아밀에테르, 에틸이소부틸에테르, 디헥실에테르 등의 에테르류; 아세톤, 메틸에틸케톤, 메틸아밀케톤, 메틸이소프로필케톤, 메틸이소아밀케톤, 디이소프로필케톤, 디이소부틸케톤, 메틸이소부틸케톤, 시클로헥산온, 에틸아밀케톤, 메틸부틸케톤, 메틸헥실케톤, 메틸노닐케톤, 메톡시메틸펜탄온 등의 케톤류; 에탄올, 프로판올, 부탄올, 헥산올, 시클로헥산올, 에틸렌글리콜, 프로필렌글리콜, 부탄디올, 디에틸렌글리콜, 디프로필렌글리콜, 트리에틸렌글리콜, 글리세린, 벤질알코올 등의 1가 또는 다가 알코올류; n-펜탄, n-옥탄, 디이소부틸렌, n-헥산, 헥센, 이소프렌, 디펜텐, 도데칸 등의 지방족 탄화수소류; 시클로헥산, 메틸시클로헥산, 메틸시클로헥센, 비시클로헥실 등의 지환식 탄화수소류; 벤젠, 톨루엔, 크실렌, 쿠멘 등의 방향족 탄화수소류; 아밀포르메이트, 에틸포르메이트, 아세트산 에틸, 아세트산 부틸, 아세트산 프로필, 아세트산 아밀, 메틸이소부티레이트, 에틸렌글리콜아세테이트, 에틸프로피오네이트, 프로필프로피오네이트, 부티르산 부틸, 부티르산 이소부틸, 이소부티르산 메틸, 에틸카프릴레이트, 부틸스테아레이트, 에틸벤조에이트, 3-에톡시프로피온산 메틸, 3-에톡시프로피온산 에틸, 3-메톡시프로피온산 메틸, 3-메톡시프로피온산 에틸, 3-메톡시프로피온산 프로필, 3-메톡시프로피온산 부틸, γ-부티로락톤 등의 쇄상 또는 환상 에스테르류; 3-메톡시프로피온산, 3-에톡시프로피온산 등의 알콕시카복실산류; 부틸클로라이드, 아밀클로라이드 등의 할로겐화 탄화수소류; 메톡시메틸펜탄온 등의 에테르케톤류; 아세토니트릴, 벤조니트릴 등의 니트릴류 등을 들 수 있다.The dispersant composition may contain a dispersion medium. As the dispersion medium, as long as it disperses or dissolves the block copolymer, does not react with these components, and has adequate volatility, it can be appropriately selected and used. For example, conventionally known organic solvents can be used, for example, ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monopropyl ether, ethylene glycol monobutyl ether, propylene glycol monomethyl ether, propylene glycol Monoethyl ether, propylene glycol mono-n-butyl ether, propylene glycol-t-butyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol mono-n-butyl ether, methoxymethylpentanol , Methoxypropanol, propylene glycol monoethyl ether, dipropylene glycol monoethyl ether, dipropylene glycol monomethyl ether, 3-methyl-3-methoxybutanol, triethylene glycol monomethyl ether, triethylene glycol monoethyl ether, tri Glycol monoalkyl ethers such as propylene glycol methyl ether; Glycol dialkyl ethers such as ethylene glycol dimethyl ether, ethylene glycol diethyl ether, diethylene glycol dimethyl ether, diethylene glycol diethyl ether, diethylene glycol dipropyl ether, diethylene glycol dibutyl ether, and dipropylene glycol dimethyl ether ; Ethylene glycol monomethyl ether acetate, ethylene glycol monoethyl ether acetate, ethylene glycol mono-n-butyl ether acetate, propylene glycol monomethyl ether acetate, propylene glycol monoethyl ether acetate, propylene glycol monopropyl ether acetate, propylene glycol monobutyl ether Acetate, methoxybutyl acetate, 3-methoxybutyl acetate, methoxypentyl acetate, diethylene glycol monomethyl ether acetate, diethylene glycol monoethyl ether acetate, diethylene glycol mono-n-butyl ether acetate, dipropylene glycol mono Glycol alkyl ether acetates such as methyl ether acetate, triethylene glycol monomethyl ether acetate, triethylene glycol monoethyl ether acetate, and 3-methyl-3-methoxybutyl acetate; Glycol diacetates such as ethylene glycol diacetate, 1,3-butylene glycol diacetate, and 1,6-hexanediol diacetate; Alkyl acetates such as cyclohexanol acetate; Ethers such as amyl ether, propyl ether, diethyl ether, dipropyl ether, diisopropyl ether, butyl ether, diamyl ether, ethyl isobutyl ether, and dihexyl ether; Acetone, methyl ethyl ketone, methyl amyl ketone, methyl isopropyl ketone, methyl isoamyl ketone, diisopropyl ketone, diisobutyl ketone, methyl isobutyl ketone, cyclohexanone, ethyl amyl ketone, methyl butyl ketone, methyl hexyl Ketones such as ketone, methylnonyl ketone, and methoxymethylpentanone; Monohydric or polyhydric alcohols such as ethanol, propanol, butanol, hexanol, cyclohexanol, ethylene glycol, propylene glycol, butanediol, diethylene glycol, dipropylene glycol, triethylene glycol, glycerin and benzyl alcohol; aliphatic hydrocarbons such as n-pentane, n-octane, diisobutylene, n-hexane, hexene, isoprene, dipentene, and dodecane; Alicyclic hydrocarbons such as cyclohexane, methylcyclohexane, methylcyclohexene, and bicyclohexyl; Aromatic hydrocarbons such as benzene, toluene, xylene, and cumene; Amylformate, ethylformate, ethyl acetate, butyl acetate, propyl acetate, amyl acetate, methyl isobutyrate, ethylene glycol acetate, ethyl propionate, propyl propionate, butyl butyrate, isobutyl butyrate, methyl isobutyrate, ethyl Caprylate, butyl stearate, ethylbenzoate, methyl 3-ethoxypropionate, ethyl 3-ethoxypropionate, methyl 3-methoxypropionate, ethyl 3-methoxypropionate, propyl 3-methoxypropionate, 3-methoxy Chain or cyclic esters such as butyl oxypropionate and γ-butyrolactone; Alkoxycarboxylic acids such as 3-methoxypropionic acid and 3-ethoxypropionic acid; Halogenated hydrocarbons such as butyl chloride and amyl chloride; Ether ketones such as methoxymethylpentanone; Nitriles, such as acetonitrile and benzonitrile, etc. are mentioned.
상기 분산제 조성물 중의 분산 매체의 함유량은, 특별히 한정되지 않고, 적절히 조정할 수 있다. 분산제 조성물 중의 분산 매체의 함유량의 상한값은, 통상 99질량%이다. 또한, 분산제 조성물 중의 분산 매체의 함유량의 하한값은, 후술하는 착색 조성물의 제조에 적합한 점도를 고려하여, 통상 10질량%이며, 30질량%인 것이 바람직하다.The content of the dispersion medium in the dispersant composition is not particularly limited and can be appropriately adjusted. The upper limit of the content of the dispersion medium in the dispersant composition is usually 99% by mass. In addition, the lower limit of the content of the dispersion medium in the dispersant composition is usually 10% by mass, preferably 30% by mass in consideration of a viscosity suitable for production of a colored composition described later.
<착색 조성물><Coloring composition>
본 발명의 착색 조성물은, 상기 분산제 조성물, 착색재, 바인더 수지 및 분산 매체를 함유한다.The coloring composition of this invention contains the said dispersing agent composition, a coloring material, a binder resin, and a dispersion medium.
(착색재)(Coloring material)
상기 착색재의 종류는, 그 용도에 따라 적절히 선택하면 되고, 예를 들면 안료, 염료를 들 수 있다. 상기 착색 조성물은, 내광성 및 내열성의 관점에서, 착색재로서 안료를 함유하는 것이 바람직하다. 안료로서는, 유기 안료 및 무기 안료 중 어느 것이어도 되는데, 유기 화합물을 주성분으로 하는 유기 안료가 특히 바람직하다. 안료로서는, 예를 들면, 적색 안료, 황색 안료, 등색(橙色) 안료, 청색 안료, 녹색 안료, 자색 안료 등의 각 색 안료를 들 수 있다. 안료의 구조는, 모노아조계 안료, 디아조계 안료, 축합 디아조계 안료 등의 아조계 안료, 디케토피롤로피롤계 안료, 프탈로시아닌계 안료, 이소인돌리논계 안료, 이소인돌린계 안료, 퀴나크리돈계 안료, 인디고계 안료, 티오인디고계 안료, 퀴노프탈론계 안료, 디옥사진계 안료, 안트라퀴논계 안료, 페릴렌계 안료, 페리논계 안료 등의 다환계 안료 등을 들 수 있다. 착색 조성물에 포함되는 안료는, 1종류만이어도 되고, 복수 종류여도 된다.The kind of the coloring material may be appropriately selected depending on the application, and examples thereof include pigments and dyes. It is preferable that the said coloring composition contains a pigment as a coloring material from a viewpoint of light resistance and heat resistance. Although any of an organic pigment and an inorganic pigment may be sufficient as a pigment, an organic pigment containing an organic compound as a main component is especially preferable. As a pigment, each color pigment, such as a red pigment, a yellow pigment, an orange pigment, a blue pigment, a green pigment, and a purple pigment, is mentioned, for example. The structure of the pigment is azo pigments such as monoazo pigments, diazo pigments and condensed diazo pigments, diketopyrrolopyrrole pigments, phthalocyanine pigments, isoindolinone pigments, isoindoline pigments, quinacridone pigments And polycyclic pigments such as pigments, indigo pigments, thioindigo pigments, quinophthalone pigments, dioxazine pigments, anthraquinone pigments, perylene pigments, and perinone pigments. The number of pigments contained in the coloring composition may be only one type or may be plural types.
안료의 구체예로서는, C. I. Pigment Red 7, 9, 14, 41, 48:1, 48:2, 48:3, 48:4, 81:1, 81:2, 81:3, 122, 123, 146, 149, 166, 168, 177, 178, 179, 187, 200, 202, 208, 210, 215, 224, 254, 255, 264, 269 등의 적색 안료; C. I. Pigment Yellow 1, 3, 5, 6, 14, 55, 60, 61, 62, 63, 65, 73, 74, 77, 81, 93, 97, 98, 104, 108, 110, 138, 139, 147, 150, 151, 154, 155, 166, 167, 168, 170, 180, 185, 188, 193, 194, 213 등의 황색 안료; C. I. Pigment Orange 36, 38, 43 등의 등색 안료; C. I. Pigment Blue 15, 15:2, 15:3, 15:4, 15:6, 16, 22, 60 등의 청색 안료; C. I. Pigment Green 7, 36, 58, 59, 62, 63, 알루미늄프탈로시아닌, 폴리할로겐화 알루미늄프탈로시아닌, 알루미늄프탈로시아닌하이드로옥사이드, 디페녹시포스피닐옥시알루미늄프탈로시아닌, 디페닐포스피닐옥시알루미늄프탈로시아닌, 폴리할로겐화 디페녹시포스피닐옥시알루미늄프탈로시아닌, 폴리할로겐화 디페닐포스피닐옥시알루미늄프탈로시아닌 등의 녹색 안료; C. I. Pigment Violet 23, 32, 50 등의 자색 안료 등을 들 수 있다. 안료는, 이들 중에서도, C. I. Pigment Red 254, C. I. Pigment Red 255, C. I. Pigment Red 264, C. I. Pigment Blue 15, C. I. Pigment Blue 15:2, C. I. Pigment Blue 15:3, C. I. Pigment Blue 15:4, C. I. Pigment Blue 15:6, C. I. Pigment Blue 16, C. I. Pigment Green 7, C. I. Pigment Green 36, C. I. Pigment Green 58, C. I. Pigment Green 59 등이 바람직하다.As a specific example of the pigment, CI Pigment Red 7, 9, 14, 41, 48:1, 48:2, 48:3, 48:4, 81:1, 81:2, 81:3, 122, 123, 146, Red pigments such as 149, 166, 168, 177, 178, 179, 187, 200, 202, 208, 210, 215, 224, 254, 255, 264, 269; CI Pigment Yellow 1, 3, 5, 6, 14, 55, 60, 61, 62, 63, 65, 73, 74, 77, 81, 93, 97, 98, 104, 108, 110, 138, 139, 147 , 150, 151, 154, 155, 166, 167, 168, 170, 180, 185, 188, 193, 194, 213 and the like yellow pigments; Orange pigments such as C. I. Pigment Orange 36, 38, 43; Blue pigments such as C. I. Pigment Blue 15, 15:2, 15:3, 15:4, 15:6, 16, 22, 60; CI Pigment Green 7, 36, 58, 59, 62, 63, aluminum phthalocyanine, polyhalogenated aluminum phthalocyanine, aluminum phthalocyanine hydroxide, diphenoxyphosphinyloxy aluminum phthalocyanine, diphenylphosphinyloxy aluminum phthalocyanine, polyhalogenated diphenoxypo Green pigments such as spinyloxy aluminum phthalocyanine and polyhalogenated diphenylphosphinyloxy aluminum phthalocyanine; Purple pigments, such as C. I. Pigment Violet 23, 32, 50, etc. are mentioned. Pigment, among these, CI Pigment Red 254, CI Pigment Red 255, CI Pigment Red 264, CI Pigment Blue 15, CI Pigment Blue 15:2, CI Pigment Blue 15:3, CI Pigment Blue 15:4, CI Pigment Blue 15:6, CI Pigment Blue 16, CI Pigment Green 7, CI Pigment Green 36, CI Pigment Green 58, CI Pigment Green 59, and the like are preferable.
본 발명의 착색 조성물을 사용하여 컬러 필터의 블랙 매트릭스 등의 차광재를 형성하는 경우에는, 흑색의 안료를 사용할 수 있다. 흑색 안료는 단독으로 사용해도 되고, 또한, 상기 적색 안료, 상기 녹색 안료, 상기 청색 안료 등을 혼합하여 사용해도 된다. 흑색 안료로서는, 카본 블랙, 아세틸렌 블랙, 램프 블랙, 본 블랙, 흑연, 철흑, 티탄 블랙 등을 들 수 있다. 이들 중에서는, 차광률, 화상 특성의 관점에서 카본 블랙, 티탄 블랙이 바람직하다.When forming a light-shielding material such as a black matrix of a color filter using the coloring composition of the present invention, a black pigment can be used. The black pigment may be used alone, or the red pigment, the green pigment, and the blue pigment may be mixed and used. Examples of the black pigment include carbon black, acetylene black, lamp black, bone black, graphite, iron black, and titanium black. Among these, carbon black and titanium black are preferable from the viewpoint of the light-shielding rate and image characteristics.
상기 착색재의 평균 입자경은, 그 용도에 따라 적절히 선택하면 되고, 특별히 한정은 없다. 상기 착색 조성물은, 고투명성 및 고콘트라스트성의 관점에서, 평균 입자경이 10nm~150nm인 착색재를 함유하는 것이 바람직하다.The average particle diameter of the coloring material may be appropriately selected depending on the application, and there is no particular limitation. From the viewpoint of high transparency and high contrast, the colored composition preferably contains a coloring material having an average particle diameter of 10 nm to 150 nm.
상기 착색재는, 분산 조제로서 색소 유도체를 함유하고 있어도 된다. 상기 색소 유도체로서는, 분산제 조성물에 포함되는 중합체 중의 아미드기와 이온 결합시켜 흡착시키기 위하여, 산성기를 갖는 산성의 색소 유도체를 함유하는 것이 바람직하다. 이 색소 유도체는, 색소 골격에 산성 관능기가 도입된 것이다. 색소 골격으로서는, 착색 조성물을 구성하고 있는 착색재와 동일 또는 유사한 골격, 당해 안료의 원료가 되는 화합물과 동일 또는 유사한 골격이 바람직하다. 색소 골격의 구체예로서는, 아조계 색소 골격, 프탈로시아닌계 색소 골격, 안트라퀴논계 색소 골격, 트리아진계 색소 골격, 아크리딘계 색소 골격, 페릴렌계 색소 골격 등을 들 수 있다. 색소 골격에 도입되는 산성기로서는, 카르복시기, 인산기, 설폰산기가 바람직하다. 또한, 합성의 편의상, 및 산성도의 강도로부터 설폰산기가 바람직하다. 또한, 산성기는, 색소 골격에 직접 결합해도 되지만, 알킬기나 아릴기 등의 탄화수소기; 에스테르, 에테르, 설폰아미드, 우레탄 결합을 개재하여 색소 골격에 결합해도 된다. 색소 유도체의 사용량은 특별히 한정은 없지만, 예를 들면, 착색재 100질량부에 대하여 4질량부~17질량부인 것이 바람직하다.The coloring material may contain a dye derivative as a dispersion aid. As the dye derivative, it is preferable to contain an acidic dye derivative having an acidic group in order to ionic bond and adsorb the amide group in the polymer contained in the dispersant composition. This dye derivative has an acidic functional group introduced into the dye skeleton. As the dye skeleton, a skeleton identical or similar to the coloring material constituting the coloring composition, and a skeleton identical or similar to the compound used as a raw material for the pigment are preferable. Specific examples of the dye skeleton include an azo dye skeleton, a phthalocyanine dye skeleton, an anthraquinone pigment skeleton, a triazine pigment skeleton, an acridine pigment skeleton, and a perylene pigment skeleton. As the acidic group introduced into the dye skeleton, a carboxyl group, a phosphoric acid group, and a sulfonic acid group are preferable. Further, for convenience of synthesis and from the strength of acidity, a sulfonic acid group is preferred. Further, the acidic group may be directly bonded to the dye skeleton, but may include hydrocarbon groups such as an alkyl group and an aryl group; You may bond to the dye skeleton via an ester, ether, sulfonamide, or urethane bond. Although the amount of the dye derivative is not particularly limited, it is preferably 4 parts by mass to 17 parts by mass, for example, based on 100 parts by mass of the coloring material.
착색 조성물에 있어서의 착색재의 함유량의 상한값은, 휘도의 관점에서, 착색 조성물의 고형분 전량 중에 있어서, 통상 80질량%이며, 70질량%인 것이 바람직하고, 60질량%인 것이 보다 바람직하다. 또한, 착색 조성물에 있어서의 착색재의 함유량의 하한값은, 착색 조성물의 고형분 전량 중에 있어서, 통상 10질량%이며, 20질량%인 것이 바람직하고, 30질량%인 것이 보다 바람직하다. 여기서 고형분이란, 후술하는 분산 매체 이외의 성분이다.The upper limit of the content of the coloring material in the coloring composition is usually 80 mass%, preferably 70 mass%, and more preferably 60 mass% in the total solid content of the coloring composition from the viewpoint of luminance. In addition, the lower limit of the content of the coloring material in the coloring composition is usually 10 mass%, preferably 20 mass%, and more preferably 30 mass% in the total solid content of the coloring composition. Here, the solid content is a component other than the dispersion medium described later.
착색 조성물에 있어서의 착색재에 대한 분산제 성분(블록 공중합체 및 중합 생성물)의 함유량은, 착색재 100질량부에 대하여 5질량부~200질량부인 것이 바람직하고, 10질량부~100질량부인 것이 바람직하며, 10질량부~80질량부인 것이 더욱 바람직하다.The content of the dispersant component (block copolymer and polymerization product) to the coloring material in the coloring composition is preferably 5 parts by mass to 200 parts by mass, and preferably 10 parts by mass to 100 parts by mass with respect to 100 parts by mass of the coloring material. And, it is more preferable that it is 10 mass parts-80 mass parts.
(바인더 수지)(Binder resin)
상기 착색 조성물은, 바인더 수지(단, 상기 일반식 (1)로 표시되는 구조 단위를 갖는 중합체는 제외한다.)를 함유한다. 이에 의하여, 착색 조성물의 알칼리 현상성이나 기판에 대한 결착성을 높일 수 있다. 이와 같은 바인더 수지로서는, 특별히 한정되는 것은 아니지만, 카르복시기, 페놀성 하이드록시기 등의 산성기를 갖는 수지인 것이 바람직하다.The colored composition contains a binder resin (however, a polymer having a structural unit represented by the general formula (1) is excluded). Thereby, the alkali developability of the colored composition and the binding property to a substrate can be improved. Although it does not specifically limit as such a binder resin, It is preferable that it is a resin which has acidic groups, such as a carboxyl group and a phenolic hydroxyl group.
상기 바인더 수지로서는, 카르복시기 함유 비닐 모노머에서 유래하는 구조 단위와 (메타)아크릴레이트에서 유래하는 구조 단위를 함유하는 랜덤 공중합체가 바람직하다. 상기 카르복시기 함유 비닐 모노머로서는, (메타)아크릴산이 바람직하다. 상기 (메타)아크릴레이트로서는, 메틸(메타)아크릴레이트, 부틸(메타)아크릴레이트, 벤질(메타)아크릴레이트 등을 들 수 있다.As the binder resin, a random copolymer containing a structural unit derived from a carboxyl group-containing vinyl monomer and a structural unit derived from (meth)acrylate is preferable. As said carboxy group-containing vinyl monomer, (meth)acrylic acid is preferable. Examples of the (meth)acrylate include methyl (meth)acrylate, butyl (meth)acrylate, and benzyl (meth)acrylate.
상기 바인더 수지는, 카르복시기 함유 비닐 모노머에서 유래하는 구조 단위와 (메타)아크릴레이트에서 유래하는 구조 단위의 합계 함유율이, 50질량% 이상이 바람직하고, 보다 바람직하게는 60질량% 이상, 더욱 바람직하게는 70질량% 이상이다. 또한, 상기 바인더 수지는, 카르복시기 함유 비닐 모노머에서 유래하는 구조의 함유율이, 5질량% 이상이 바람직하고, 보다 바람직하게는 10질량% 이상, 더욱 바람직하게는 20질량% 이상이며, 90질량% 이하가 바람직하고, 보다 바람직하게는 70질량% 이하이다.In the binder resin, the total content of the structural unit derived from a carboxyl group-containing vinyl monomer and the structural unit derived from (meth)acrylate is preferably 50% by mass or more, more preferably 60% by mass or more, further preferably Is 70% by mass or more. Further, the binder resin has a content rate of the structure derived from a carboxyl group-containing vinyl monomer is preferably 5% by mass or more, more preferably 10% by mass or more, still more preferably 20% by mass or more, and 90% by mass or less. Is preferably, more preferably 70% by mass or less.
이들 중에서도, 카르복시기 함유 비닐 모노머와 (메타)아크릴레이트의 랜덤 공중합체인 것이 바람직하다. 이와 같은 공중합체의 구체예로서는, (메타)아크릴산과 부틸(메타)아크릴레이트의 랜덤 공중합체, (메타)아크릴산과 벤질(메타)아크릴레이트의 랜덤 공중합체, (메타)아크릴산과 부틸(메타)아크릴레이트와 벤질(메타)아크릴레이트의 랜덤 공중합체 등을 들 수 있다. 바인더 수지와 착색재의 친화성의 관점에서는, 바인더 수지는, (메타)아크릴산과 벤질(메타)아크릴레이트의 랜덤 공중합체인 것이 특히 바람직하다.Among these, it is preferable that it is a random copolymer of a carboxyl group-containing vinyl monomer and (meth)acrylate. Specific examples of such a copolymer include a random copolymer of (meth)acrylic acid and butyl (meth)acrylate, a random copolymer of (meth)acrylic acid and benzyl (meth)acrylate, and (meth)acrylic acid and butyl (meth)acrylic. And a random copolymer of benzyl (meth)acrylate and the like. From the viewpoint of the affinity between the binder resin and the coloring material, the binder resin is particularly preferably a random copolymer of (meth)acrylic acid and benzyl (meth)acrylate.
카르복시기 함유 비닐 모노머와 (메타)아크릴레이트의 공중합체에 있어서, (메타)아크릴산의 함유량은, 전체 모노머 성분 중, 통상 5질량%~90질량%이며, 10질량%~70질량%인 것이 바람직하고, 20질량%~70질량%인 것이 보다 바람직하다.In the copolymer of a carboxyl group-containing vinyl monomer and (meth)acrylate, the content of (meth)acrylic acid is usually 5% by mass to 90% by mass, preferably 10% by mass to 70% by mass, among all monomer components. , It is more preferable that it is 20 mass%-70 mass %.
상기 바인더 수지는, 측쇄에 라디칼 중합 가능한 탄소-탄소 이중 결합을 갖는 것이어도 된다. 측쇄에 이중 결합을 가짐으로써, 본 발명에 따른 착색 조성물의 광경화성이 높아지기 때문에, 해상도, 밀착성을 더욱 향상시킬 수 있다. 측쇄에 라디칼 중합 가능한 탄소-탄소 이중 결합을 도입하는 방법으로서는, 예를 들면, 글리시딜(메타)아크릴레이트, 3,4-에폭시시클로헥실메틸(메타)아크릴레이트, o-(또는 m-, 또는 p-)비닐벤질글리시딜에테르 등의 화합물을, 상기 바인더 수지의 산성기에 반응시키는 방법을 들 수 있다.The binder resin may have a carbon-carbon double bond capable of radical polymerization in the side chain. By having a double bond in the side chain, since the photocurability of the colored composition according to the present invention is increased, resolution and adhesion can be further improved. As a method of introducing a radically polymerizable carbon-carbon double bond into the side chain, for example, glycidyl (meth)acrylate, 3,4-epoxycyclohexylmethyl (meth)acrylate, o- (or m-, Alternatively, a method of reacting a compound such as p-) vinylbenzyl glycidyl ether to the acidic group of the binder resin is exemplified.
바인더 수지의 Mw는, 3,000~100,000인 것이 바람직하고, 5,000~50,000인 것이 보다 바람직하며, 5,000~20,000인 것이 더욱 바람직하다. 바인더 수지의 Mw가 3,000 이상이면, 착색 조성물로 형성된 착색층의 내열성, 막 강도 등이 양호해지고, Mw가 100,000 이하이면, 이 도포막의 알칼리 현상성이 한층 더 양호해진다.Mw of the binder resin is preferably 3,000 to 100,000, more preferably 5,000 to 50,000, and even more preferably 5,000 to 20,000. When Mw of the binder resin is 3,000 or more, the heat resistance, film strength, etc. of the colored layer formed of the colored composition become good, and when Mw is 100,000 or less, the alkali developability of this coating film is further improved.
바인더 수지의 산가는, 20mgKOH/g~170mgKOH/g인 것이 바람직하고, 50mgKOH/g~150mgKOH/g인 것이 보다 바람직하며, 90mgKOH/g~150mgKOH/g인 것이 더욱 바람직하다. 바인더 수지의 산가가 20mgKOH/g 이상이면, 착색 조성물을 착색층으로 했을 때의 알칼리 현상성이 한층 더 양호해지고, 170mgKOH/g 이하이면 내열성이 양호해진다.The acid value of the binder resin is preferably 20 mgKOH/g to 170 mgKOH/g, more preferably 50 mgKOH/g to 150 mgKOH/g, and still more preferably 90 mgKOH/g to 150 mgKOH/g. When the acid value of the binder resin is 20 mgKOH/g or more, the alkali developability when the colored composition is used as a colored layer becomes more favorable, and when it is 170 mgKOH/g or less, the heat resistance becomes good.
착색 조성물에 포함되는 바인더 수지는, 1종류만이어도 되고, 복수 종류여도 된다. 착색 조성물에 있어서, 바인더 수지의 함유량은, 착색재 100질량부에 대하여, 3질량부~200질량부인 것이 바람직하고, 10질량부~100질량부인 것이 보다 바람직하며, 20질량부~80질량부인 것이 더욱 바람직하다.The number of binder resins contained in the coloring composition may be one, or may be plural. In the coloring composition, the content of the binder resin is preferably 3 parts by mass to 200 parts by mass, more preferably 10 parts by mass to 100 parts by mass, and 20 parts by mass to 80 parts by mass per 100 parts by mass of the coloring material. More preferable.
(가교제)(Crosslinking agent)
상기 착색 조성물은, 필요에 따라, 가교제를 함유해도 된다. 가교제란, 2개 이상의 중합 가능한 기를 갖는 화합물을 말한다. 중합 가능한 기로서는, 예를 들면, 에틸렌성 불포화기, 옥시란일기, 옥세탄일기, N-알콕시메틸아미노기 등을 들 수 있다. 상기 가교제로서는, 2개 이상의 (메타)아크릴로일기를 갖는 화합물, 또는 2개 이상의 N-알콕시메틸아미노기를 갖는 화합물이 바람직하다.If necessary, the colored composition may contain a crosslinking agent. The crosslinking agent refers to a compound having two or more polymerizable groups. Examples of the polymerizable group include an ethylenic unsaturated group, an oxiranyl group, an oxetanyl group, and an N-alkoxymethylamino group. As the crosslinking agent, a compound having two or more (meth)acryloyl groups or a compound having two or more N-alkoxymethylamino groups is preferable.
상기 2개 이상의 (메타)아크릴로일기를 갖는 화합물의 구체예로서는, 지방족 폴리하이드록시 화합물과 (메타)아크릴산을 반응시켜 얻어지는 다관능 (메타)아크릴레이트, 카프로락톤 변성된 다관능 (메타)아크릴레이트, 알킬렌옥사이드 변성된 다관능 (메타)아크릴레이트, 하이드록시기를 갖는 (메타)아크릴레이트와 다관능 이소시아네이트를 반응시켜 얻어지는 다관능 우레탄(메타)아크릴레이트, 하이드록시기를 갖는 (메타)아크릴레이트와 산무수물을 반응시켜 얻어지는 카르복시기를 갖는 다관능 (메타)아크릴레이트 등을 들 수 있다.As a specific example of the compound having two or more (meth)acryloyl groups, polyfunctional (meth)acrylate obtained by reacting an aliphatic polyhydroxy compound with (meth)acrylic acid, and caprolactone-modified polyfunctional (meth)acrylate , Polyfunctional urethane (meth)acrylate obtained by reacting alkylene oxide-modified polyfunctional (meth)acrylate, (meth)acrylate having a hydroxy group with a polyfunctional isocyanate, and (meth)acrylate having a hydroxy group And polyfunctional (meth)acrylates having a carboxyl group obtained by reacting an acid anhydride.
상기 지방족 폴리하이드록시 화합물로서는, 예를 들면, 에틸렌글리콜, 프로필렌글리콜, 폴리에틸렌글리콜, 폴리프로필렌글리콜 등의 2가의 지방족 폴리하이드록시 화합물; 글리세린, 트리메틸올프로판, 펜타에리트리톨, 디펜타에리트리톨 등의 3가 이상의 지방족 폴리하이드록시 화합물을 들 수 있다. 상기 하이드록시기를 갖는 (메타)아크릴레이트로서는, 예를 들면, 2-하이드록시에틸(메타)아크릴레이트, 트리메틸올프로판디(메타)아크릴레이트, 펜타에리트리톨트리(메타)아크릴레이트, 디펜타에리트리톨펜타(메타)아크릴레이트, 디펜타에리트리톨헥사(메타)아크릴레이트, 글리세롤디(메타)아크릴레이트 등을 들 수 있다. 상기 다관능 이소시아네이트로서는, 예를 들면, 톨릴렌디이소시아네이트, 헥사메틸렌디이소시아네이트, 디페닐메틸렌디이소시아네이트, 이소포론디이소시아네이트 등을 들 수 있다. 상기 산무수물로서는, 예를 들면, 무수 석신산, 무수 말레산, 무수 글루타르산, 무수 이타콘산, 무수 프탈산, 헥사하이드로 무수 프탈산 등의 이염기산의 무수물; 무수 피로멜리트산, 비페닐테트라카복실산 이무수물, 벤조페논테트라카복실산 이무수물 등의 사염기산 이무수물을 들 수 있다.Examples of the aliphatic polyhydroxy compound include divalent aliphatic polyhydroxy compounds such as ethylene glycol, propylene glycol, polyethylene glycol, and polypropylene glycol; And trivalent or higher aliphatic polyhydroxy compounds such as glycerin, trimethylolpropane, pentaerythritol, and dipentaerythritol. Examples of the (meth)acrylate having a hydroxy group include 2-hydroxyethyl (meth)acrylate, trimethylolpropanedi (meth)acrylate, pentaerythritol tri (meth)acrylate, and dipentaeryth. Lithol penta (meth) acrylate, dipentaerythritol hexa (meth) acrylate, glycerol di (meth) acrylate, etc. are mentioned. Examples of the polyfunctional isocyanate include tolylene diisocyanate, hexamethylene diisocyanate, diphenylmethylene diisocyanate, and isophorone diisocyanate. Examples of the acid anhydride include anhydrides of dibasic acids such as succinic anhydride, maleic anhydride, glutaric anhydride, itaconic anhydride, phthalic anhydride, and hexahydrophthalic anhydride; And tetrabasic acid dianhydrides such as pyromellitic anhydride, biphenyl tetracarboxylic dianhydride, and benzophenone tetracarboxylic dianhydride.
상기 착색 조성물에 있어서, 가교제의 함유량은, 착색재 100질량부에 대하여, 10질량부~1,000질량부가 바람직하고, 특히 20질량부~500질량부가 바람직하다. 가교제의 함유량이 너무 적으면, 충분한 경화성이 얻어지지 않을 우려가 있다. 한편, 가교제의 양이 너무 많으면, 본 발명의 착색 조성물에 알칼리 현상성이 저하되고, 미노광부의 기판 상 또는 차광층 상에 스커밍, 막 잔여물 등이 발생하기 쉬워지는 경향이 있다.In the above-described colored composition, the content of the crosslinking agent is preferably 10 parts by mass to 1,000 parts by mass, and particularly preferably 20 parts by mass to 500 parts by mass, based on 100 parts by mass of the coloring material. If the content of the crosslinking agent is too small, there is a fear that sufficient curability may not be obtained. On the other hand, when the amount of the crosslinking agent is too large, the alkali developability is lowered in the colored composition of the present invention, and scuming, film residues, etc. tend to occur easily on the substrate or the light-shielding layer of the unexposed portion.
(광중합 개시제)(Photopolymerization initiator)
상기 착색 조성물은, 필요에 따라, 광중합 개시제를 함유해도 된다. 이에 의하여, 착색 조성물에 감방사선성을 부여할 수 있다. 상기 광중합 개시제는, 가시광선, 자외선, 원적외선, 전자선, X선 등의 방사선의 노광에 의하여, 가교제의 중합을 개시할 수 있는 활성종을 발생시키는 화합물이다.The said colored composition may contain a photoinitiator as needed. Thereby, radiation-sensitive property can be imparted to the colored composition. The photopolymerization initiator is a compound that generates active species capable of initiating polymerization of a crosslinking agent by exposure to radiation such as visible light, ultraviolet rays, far infrared rays, electron rays, and X-rays.
상기 광중합 개시제로서는, 예를 들면, 티오크산톤계 화합물, 아세토페논계 화합물, 비이미다졸계 화합물, 트리아진계 화합물, O-아실옥심계 화합물, 오늄염계 화합물, 벤조인계 화합물, 벤조페논계 화합물, α-디케톤계 화합물, 다핵 퀴논계 화합물, 디아조계 화합물, 이미드설포네이트계 화합물, 아미노케톤계 화합물 등을 들 수 있다. 광중합 개시제는, 단독으로 또는 2종 이상을 혼합하여 사용할 수 있다.Examples of the photopolymerization initiator include thioxanthone compounds, acetophenone compounds, biimidazole compounds, triazine compounds, O-acyloxime compounds, onium salt compounds, benzoin compounds, benzophenone compounds, α-diketone compounds, polynuclear quinone compounds, diazo compounds, imide sulfonate compounds, amino ketone compounds, and the like. Photoinitiators can be used individually or in mixture of 2 or more types.
본 발명의 착색 조성물에 있어서, 광중합 개시제의 함유량은, 가교제 100질량부에 대하여, 0.01질량부~120질량부가 바람직하고, 특히 1질량부~100질량부가 바람직하다. 이 경우, 광중합 개시제의 함유량이 너무 적으면, 노광에 의하여 경화가 불충분해질 우려가 있고, 한편 너무 많으면, 형성된 착색층이 현상 시에 기판으로부터 탈락하기 쉬워지는 경향이 있다.In the coloring composition of the present invention, the content of the photopolymerization initiator is preferably 0.01 parts by mass to 120 parts by mass, and particularly preferably 1 part by mass to 100 parts by mass, based on 100 parts by mass of the crosslinking agent. In this case, if the content of the photopolymerization initiator is too small, there is a risk that curing may be insufficient due to exposure, whereas if it is too large, the formed colored layer tends to be easily detached from the substrate during development.
(분산 매체)(Dispersion medium)
상기 착색 조성물은, 분산 매체를 함유한다. 상기 분산 매체로서는, 착색 조성물을 구성하는 다른 성분을 분산 또는 용해하고, 또한 이들 성분과 반응하지 않으며, 적당히 휘발성을 갖는 것인 한, 적절히 선택하여 사용할 수 있다. 예를 들면, 종래 공지의 유기 용매를 사용할 수 있고, 예를 들면, 상기 분산제 조성물에 사용할 수 있는 유기 용매(분산 매체)를 들 수 있다. 유기 용매는, 안료 등의 분산성, 분산제의 용해성, 안료 분산 조성물의 도포성 등의 관점에서, 글리콜알킬에테르아세테이트류, 1가 또는 다가 알코올류인 것이 바람직하다. 안료 분산 조성물에 포함되는 용매는, 1종류만이어도 되고, 복수 종류여도 된다.The coloring composition contains a dispersion medium. As the dispersion medium, as long as it disperses or dissolves other components constituting the colored composition, does not react with these components, and has adequate volatility, it can be appropriately selected and used. For example, a conventionally known organic solvent can be used, and for example, an organic solvent (dispersion medium) that can be used in the dispersant composition can be mentioned. The organic solvent is preferably glycol alkyl ether acetates, monohydric or polyhydric alcohols from the viewpoints of dispersibility of pigments, the solubility of dispersants, and coating properties of the pigment dispersion composition. The number of solvents contained in the pigment dispersion composition may be one type or a plurality of types.
포토리소그래피법으로 컬러 필터의 화소를 형성하는 경우, 상기 분산 매체의 비점(압력 1013.25hPa 조건하. 이하, 비점에 관해서는 전부 동일.)은, 100℃~200℃가 바람직하다. 상기 분산 매체 중에서도, 도포성, 표면 장력 등의 밸런스가 좋고, 착색 조성물 중의 구성 성분의 용해도가 비교적 높은 점에서, 글리콜알킬에테르아세테이트류가 바람직하다. 또한, 비점이 150℃ 이상인 분산 매체를 사용하는 것도 바람직하다. 비점이 높은 분산 매체를 사용함으로써, 착색 조성물이 급격하게 건조되는 것에 의한 착색 조성물의 상호 관계의 파괴를 억제할 수 있다. 또한, 비점이 150℃ 이상인 분산 매체가, 글리콜알킬에테르아세테이트류여도 된다. 비점이 150℃ 이상인 분산 매체의 함유 비율은, 분산 매체 전체 100질량% 중, 3~50질량%가 바람직하다.When forming pixels of a color filter by a photolithography method, the boiling point of the dispersion medium (under a pressure of 1013.25 hPa. Hereinafter, all the boiling points are the same) is preferably 100°C to 200°C. Among the above dispersion media, glycol alkyl ether acetates are preferred because the balance of coating properties and surface tension is good, and the solubility of the constituent components in the colored composition is relatively high. It is also preferable to use a dispersion medium having a boiling point of 150°C or higher. By using a dispersion medium having a high boiling point, it is possible to suppress the destruction of the mutual relationship of the colored composition due to the rapid drying of the colored composition. Further, the dispersion medium having a boiling point of 150°C or higher may be glycol alkyl ether acetates. The content ratio of the dispersion medium having a boiling point of 150°C or higher is preferably 3 to 50% by mass in the total 100% by mass of the dispersion medium.
착색 조성물 중의 분산 매체의 함유량은, 특별히 한정되지 않고, 적절히 조정할 수 있다. 착색 조성물 중의 분산 매체의 함유량의 상한값은, 통상 99질량%이다. 또한, 착색 조성물 중의 분산 매체의 함유량의 하한값은, 착색 조성물의 도포에 적합한 점도를 고려하여, 통상 70질량%이며, 80질량%인 것이 바람직하다. 상기 분산 매체는, 착색 조성물로 형성되는 석출물을 용해, 제거하기 위한 용매로서 사용할 수 있다.The content of the dispersion medium in the coloring composition is not particularly limited and can be appropriately adjusted. The upper limit of the content of the dispersion medium in the coloring composition is usually 99% by mass. In addition, the lower limit of the content of the dispersion medium in the colored composition is usually 70% by mass, preferably 80% by mass in consideration of a viscosity suitable for application of the colored composition. The dispersion medium can be used as a solvent for dissolving and removing precipitates formed from the colored composition.
(다른 배합제)(Other formulations)
상기 착색 조성물에는, 본 발명의 바람직한 물성을 손상시키지 않는 범위이면, 상기 배합제 이외에, 다른 배합제를 배합할 수 있다. 다른 배합제로서는, 증감 색소, 열중합 방지제, 비이온계 계면활성제, 음이온계 계면활성제, 양이온계 계면활성제, 양성(兩性) 계면활성제, 가소제, 유기 카복실산 화합물, 유기 카복실산 무수물, pH 조정제, 산화 방지제, 자외선 흡수제, 광안정제, 방부제, 곰팡이 방지제, 계면활성제, 응집 방지제, 밀착성 개량제, 현상 개량제, 보존 안정제 등을 들 수 있다.In addition to the above compounding agent, other compounding agents may be compounded in the colored composition as long as the range does not impair the preferred physical properties of the present invention. Other compounding agents include sensitizing dyes, thermal polymerization inhibitors, nonionic surfactants, anionic surfactants, cationic surfactants, amphoteric surfactants, plasticizers, organic carboxylic acid compounds, organic carboxylic acid anhydrides, pH adjusters, antioxidants. , Ultraviolet absorbers, light stabilizers, preservatives, mold inhibitors, surfactants, anti-aggregation agents, adhesion improvers, development improvers, storage stabilizers, and the like.
증감 색소로서는, 4,4'-디메틸아미노벤조페논, 4,4'-디에틸아미노벤조페논, 2-아미노벤조페논, 4-아미노벤조페논, 4,4'-디아미노벤조페논, 3,3'-디아미노벤조페논, 3,4-디아미노벤조페논, 2-(p-디메틸아미노페닐)벤조옥사졸, 2-(p-디에틸아미노페닐)벤조옥사졸, 2-(p-디메틸아미노페닐)벤조[4,5]벤조옥사졸, 2-(p-디메틸아미노페닐)벤조[6,7]벤조옥사졸, 2,5-비스(p-디에틸아미노페닐)1,3,4-옥사졸, 2-(p-디메틸아미노페닐)벤조티아졸, 2-(p-디에틸아미노페닐)벤조티아졸, 2-(p-디메틸아미노페닐)벤즈이미다졸, 2-(p-디에틸아미노페닐)벤조이미다졸, 2,5-비스(p-디에틸아미노페닐)1,3,4-티아디아졸, (p-디메틸아미노페닐)피리딘, (p-디에틸아미노페닐)피리딘, (p-디메틸아미노페닐)퀴놀린, (p-디에틸아미노페닐)퀴놀린, (p-디메틸아미노페닐)피리미딘, (p-디에틸아미노페닐)피리미딘 등을 들 수 있다.As a sensitizing dye, 4,4'-dimethylaminobenzophenone, 4,4'-diethylaminobenzophenone, 2-aminobenzophenone, 4-aminobenzophenone, 4,4'-diaminobenzophenone, 3,3 '-Diaminobenzophenone, 3,4-diaminobenzophenone, 2-(p-dimethylaminophenyl)benzoxazole, 2-(p-diethylaminophenyl)benzoxazole, 2-(p-dimethylamino Phenyl)benzo[4,5]benzoxazole, 2-(p-dimethylaminophenyl)benzo[6,7]benzoxazole, 2,5-bis(p-diethylaminophenyl)1,3,4- Oxazole, 2-(p-dimethylaminophenyl)benzothiazole, 2-(p-diethylaminophenyl)benzothiazole, 2-(p-dimethylaminophenyl)benzimidazole, 2-(p-diethyl Aminophenyl)benzoimidazole, 2,5-bis(p-diethylaminophenyl)1,3,4-thiadiazole, (p-dimethylaminophenyl)pyridine, (p-diethylaminophenyl)pyridine, ( p-dimethylaminophenyl)quinoline, (p-diethylaminophenyl)quinoline, (p-dimethylaminophenyl)pyrimidine, (p-diethylaminophenyl)pyrimidine, and the like.
열중합 방지제로서는, 하이드로퀴논, p-메톡시페놀, 피로갈롤, 카테콜, 2,6-t-부틸-p-크레졸, β-나프톨 등을 들 수 있다.Examples of the thermal polymerization inhibitor include hydroquinone, p-methoxyphenol, pyrogallol, catechol, 2,6-t-butyl-p-cresol, and β-naphthol.
비이온계 계면활성제로서는, 불소계 계면활성제, 실리콘계 계면활성제, 폴리옥시에틸렌계 계면활성제 등을 들 수 있다.Examples of the nonionic surfactant include a fluorine surfactant, a silicone surfactant, and a polyoxyethylene surfactant.
음이온계 계면활성제로서는, 알킬설폰산염류, 알킬벤젠설폰산염류, 알킬나프탈렌설폰산염류, 폴리옥시에틸렌알킬에테르설폰산염류, 알킬황산염류, 알킬황산 에스테르염류, 고급 알코올 황산 에스테르염류, 지방족 알코올 황산 에스테르염류, 폴리옥시에틸렌알킬에테르 황산염류, 폴리옥시에틸렌알킬페닐에테르 황산염류, 알킬 인산 에스테르염류, 폴리옥시에틸렌알킬에테르 인산염류, 폴리옥시에틸렌알킬페닐에테르 인산염류, 특수 고분자계 계면활성제 등을 들 수 있다.As anionic surfactants, alkyl sulfonates, alkylbenzene sulfonates, alkyl naphthalene sulfonates, polyoxyethylene alkyl ether sulfonates, alkyl sulfates, alkyl sulfuric acid ester salts, higher alcohol sulfuric acid ester salts, aliphatic alcohol sulfuric acid Ester salts, polyoxyethylene alkyl ether sulfates, polyoxyethylene alkyl phenyl ether sulfates, alkyl phosphate ester salts, polyoxyethylene alkyl ether phosphates, polyoxyethylene alkyl phenyl ether phosphates, special polymer surfactants, etc. I can.
양이온계 계면활성제로서는, 제4급 암모늄염류, 이미다졸린 유도체류, 알킬아민염류 등을 들 수 있다.Examples of the cationic surfactant include quaternary ammonium salts, imidazoline derivatives, and alkylamine salts.
양성 계면활성제로서는, 베타인형 화합물류, 이미다졸륨염류, 이미다졸린류, 아미노산류 등을 들 수 있다.Examples of amphoteric surfactants include betaine compounds, imidazolium salts, imidazolines, amino acids, and the like.
가소제로서는, 디옥틸프탈레이트, 디도데실프탈레이트, 트리에틸렌글리콜디카프릴레이트, 디메틸글리콜프탈레이트, 트리크레실포스페이트, 디옥틸아디페이트, 디부틸세바케이트, 트리아세틸글리세린 등을 들 수 있다.Examples of the plasticizer include dioctyl phthalate, didodecyl phthalate, triethylene glycol dicaprylate, dimethyl glycol phthalate, tricresyl phosphate, dioctyl adipate, dibutyl sebacate, and triacetyl glycerin.
유기 카복실산 화합물로서는, 모노카복실산, 페닐기에 직접 카르복시기가 결합한 카복실산, 페닐기로부터 탄소 결합을 개재하여 카르복시기가 결합한 카복실산류 등을 들 수 있다.Examples of the organic carboxylic acid compound include monocarboxylic acids, carboxylic acids in which a carboxyl group is directly bonded to a phenyl group, and carboxylic acids in which a carboxy group is bonded through a carbon bond from a phenyl group.
유기 카복실산 무수물로서는, 무수 아세트산, 무수 트리클로로아세트산, 무수 트리플루오로아세트산, 무수 테트라하이드로프탈산, 무수 석신산, 무수 말레산, 무수 시트라콘산, 무수 이타콘산, 무수 글루타르산, 무수 1,2-시클로헥센디카복실산, 무수 n-옥타데실석신산, 무수 5-노르보르넨-2,3-디카복실산, 무수 프탈산, 트리멜리트산 무수물, 피로멜리트산 무수물, 무수 나프탈산 등을 들 수 있다.As organic carboxylic anhydride, acetic anhydride, trichloroacetic anhydride, trifluoroacetic anhydride, tetrahydrophthalic anhydride, succinic anhydride, maleic anhydride, citraconic anhydride, itaconic anhydride, glutaric anhydride, 1,2 -Cyclohexene dicarboxylic acid, n-octadecylsuccinic anhydride, 5-norbornene-2,3-dicarboxylic anhydride, phthalic anhydride, trimellitic anhydride, pyromellitic anhydride, naphthalic anhydride, and the like.
<착색 조성물의 제조 방법><Production method of colored composition>
상기 착색 조성물은, 착색재, 분산제 조성물, 바인더 수지, 분산 매체, 필요에 따라, 가교제, 광중합 개시제, 다른 배합제를 혼합함으로써 조제할 수 있다. 혼합은, 예를 들면, 페인트 셰이커, 비즈 밀, 볼 밀, 디졸바, 니더 등의 혼합 분산기를 이용할 수 있다. 착색 조성물은, 혼합 후에 여과하는 것이 바람직하다. 상기 착색 조성물은, 알칼리 현상성을 갖는 점에서, 컬러 필터용으로서 적합하게 사용할 수 있다.The said colored composition can be prepared by mixing a coloring material, a dispersant composition, a binder resin, a dispersion medium, and a crosslinking agent, a photoinitiator, and another compounding agent as needed. Mixing can be performed using a mixing and dispersing machine such as a paint shaker, a bead mill, a ball mill, a dissolver, and a kneader. It is preferable to filter the colored composition after mixing. Since the said colored composition has alkali developability, it can be used suitably as a color filter use.
또한, 착색재는, 본 발명의 분산제 조성물에 의하여 미리 표면 처리한 것을 이용할 수도 있다. 표면 처리 방법으로서는, 헨셀 믹서, 볼 밀, 아토마이저 콜로이드 밀, 밴버리 믹서 등을 이용하여 착색재를 교반하면서 분산제를 첨가하여 혼합하는 건식법, 용제 중에서 처리한 후 용제를 제거하는 습식법을 이용할 수 있다. 이와 같이 본 발명의 분산제 조성물로 표면 처리를 행함으로써, 착색재의 분산성을 향상시켜, 응집을 방지할 수 있다.Moreover, as a coloring material, what was surface-treated in advance with the dispersing agent composition of this invention can also be used. As the surface treatment method, a dry method in which a dispersant is added and mixed while stirring the coloring material using a Henschel mixer, a ball mill, an atomizer colloid mill, a Banbury mixer, or the like, or a wet method in which the solvent is removed after treatment in a solvent can be used. Thus, by performing the surface treatment with the dispersant composition of the present invention, the dispersibility of the coloring material can be improved and aggregation can be prevented.
<컬러 필터><Color filter>
본 발명의 컬러 필터는, 상기 착색 조성물을 이용하여 형성된 착색층을 구비하는 것이다.The color filter of the present invention is provided with a colored layer formed using the colored composition.
컬러 필터를 제조하는 방법으로서는, 예를 들면, 다음의 방법을 들 수 있다. 우선, 폴리에스테르계 수지, 폴리올레핀계 수지, 폴리카보네이트 수지, 폴리메틸메타크릴레이트 수지 등의 열가소성 수지 시트; 에폭시 수지, 불포화 폴리에스테르 수지, 폴리(메타)아크릴계 수지 등의 열경화성 수지 시트; 각종 유리 등의 투명 기판 상에, 적색(R), 녹색(G) 및 청색(B)의 삼원색의 광을 투과시키는 색화소를 구비하는 것이며, 바람직하게는 상기 착색 조성물로 형성된 블랙 매트릭스를 구비하는 것이다. 컬러 필터를 제조하는 방법으로서는, 흑색의 착색 조성물을 도포한 후, 프리베이크를 행하여 용매(분산 매체)를 증발시켜, 도막을 형성한다. 이어서, 이 도막에 포토마스크를 개재하여 노광한 후, 알칼리 현상액(유기 용제 또는 계면활성제와 알칼리성 화합물을 포함하는 수용액 등)을 이용하여 현상하고, 도막의 미노광부를 용해 제거하여, 흑색의 패턴(블랙 매트릭스)을 형성한다. 그 후, 필요에 따라 포스트베이크한 후, 동일한 조작을 적색(R), 녹색(G) 및 청색(B)에 대하여 순차적으로 반복함으로써, 적색, 녹색 및 청색의 삼원색의 화소 어레이가 기판 상에 배치된 컬러 필터가 얻어진다. 단, 본 발명에 있어서는, 각 색의 화소를 형성하는 순서는, 상기의 것에 한정되지 않는다.As a method of manufacturing a color filter, the following method is mentioned, for example. First, thermoplastic resin sheets such as polyester resin, polyolefin resin, polycarbonate resin, and polymethyl methacrylate resin; Thermosetting resin sheets such as epoxy resin, unsaturated polyester resin, and poly(meth)acrylic resin; On a transparent substrate such as various glasses, it is provided with a color pixel that transmits light of three primary colors of red (R), green (G) and blue (B), preferably comprising a black matrix formed of the above colored composition. will be. As a method of manufacturing a color filter, after applying a black colored composition, prebaking is performed to evaporate a solvent (dispersion medium) to form a coating film. Subsequently, after exposing the coating film to light through a photomask, it is developed using an alkali developer (such as an organic solvent or an aqueous solution containing a surfactant and an alkaline compound), dissolving and removing the unexposed part of the coating film, and removing a black pattern ( Black matrix). After that, post-baking as necessary, and then repeating the same operation sequentially for red (R), green (G) and blue (B), the pixel array of three primary colors of red, green and blue is placed on the substrate. Color filters are obtained. However, in the present invention, the order of forming the pixels of each color is not limited to the above.
착색 조성물을 기판에 도포할 때에는, 스프레이법, 롤 코트법, 회전 도포법(스핀 코트법), 슬릿 다이 도포법, 바 도포법 등의 적절한 도포법을 채용할 수 있는데, 특히, 스핀 코트법, 슬릿 다이 도포법을 채용하는 것이 바람직하다.When applying the colored composition to the substrate, suitable coating methods such as spray method, roll coating method, rotation coating method (spin coating method), slit die coating method, and bar coating method can be employed. In particular, spin coating method, It is preferable to employ a slit die coating method.
이와 같이 하여 얻어진 화소 패턴 상에, 필요에 따라 보호막을 형성한 후, 투명 도전막(산화 인듐 주석(ITO) 등)을 스퍼터링에 의하여 형성한다. 투명 도전막을 형성한 후, 추가로 스페이서를 형성하여 컬러 필터로 할 수도 있다.After forming a protective film as necessary on the pixel pattern thus obtained, a transparent conductive film (such as indium tin oxide (ITO)) is formed by sputtering. After the transparent conductive film is formed, a spacer may be further formed to form a color filter.
본 발명의 컬러 필터는, 치수 정밀도 등이 높고, 컬러 액정 표시 소자, 컬러 촬상관 소자, 컬러 센서, 유기 EL 표시 소자, 전자 페이퍼 등에 적합하게 사용할 수 있다.The color filter of the present invention has high dimensional accuracy and the like, and can be suitably used for a color liquid crystal display element, a color imaging tube element, a color sensor, an organic EL display element, electronic paper, or the like.
또한, 상기 착색 조성물은, 점도가 낮고, 착색재의 분산성이 우수한 점에서, 액정층을 사이에 두고 위치하는 박막 트랜지스터(TFT) 기판과 컬러 필터 기판에 지지되는 착색 칼럼 스페이서로서 적합하게 사용할 수 있다. 예를 들면, 일본국 특허공개 2015-191234호 공보에 기재된 높은 광학 밀도(Optical Depth: OD)의 조성물을 들 수 있다.In addition, the colored composition has a low viscosity and is excellent in dispersibility of a coloring material, so it can be suitably used as a colored column spacer supported by a color filter substrate and a thin film transistor (TFT) substrate positioned with a liquid crystal layer therebetween. . For example, the composition of high optical density (Optical Depth: OD) described in Japanese Unexamined-Japanese-Patent No. 2015-191234 is mentioned.
[실시예][Example]
이하, 본 발명에 대하여, 구체적인 실시예에 의거하여, 더욱 상세하게 설명한다. 본 발명은, 이하의 실시예에 조금도 한정되는 것이 아니고, 그 요지를 변경하지 않는 범위에 있어서 적절히 변경하여 실시하는 것이 가능하다. 또한, 블록 공중합체 및 바인더 수지의 중합률, 중량 평균 분자량(Mw), 분자량 분포(PDI) 및 아민가, 분산제 조성물의 포름알데하이드량, 그리고 착색 조성물의 분산성(점도)은, 하기 방법에 따라 평가했다.Hereinafter, the present invention will be described in more detail based on specific examples. The present invention is not limited at all to the following examples, and can be implemented with appropriate changes within a range that does not change the gist of the invention. In addition, the polymerization rate, weight average molecular weight (Mw), molecular weight distribution (PDI) and amine value of the block copolymer and the binder resin, the amount of formaldehyde of the dispersant composition, and the dispersibility (viscosity) of the colored composition were evaluated according to the following method. did.
또한, 약어의 의미는 하기와 같다.In addition, the meaning of the abbreviation is as follows.
BA: 부틸아크릴레이트BA: butyl acrylate
BMA: 부틸메타크릴레이트BMA: butyl methacrylate
PCL5: 2-하이드록시에틸메타크릴레이트의 5mol 카프로락톤 부가물(다이셀 화학사 제조, 플락셀(등록상표) FM5)PCL5: 5-mol caprolactone adduct of 2-hydroxyethyl methacrylate (manufactured by Daicel Chemical Co., Ltd., Flaxel (registered trademark) FM5)
PCL FA5: 2-하이드록시에틸아크릴레이트의 5mol 카프로락톤 부가물(다이셀 화학사 제조, 플락셀(등록상표) FA5)PCL FA5: 5-mol caprolactone adduct of 2-hydroxyethyl acrylate (manufactured by Daicel Chemical Co., Ltd., Flaxel (registered trademark) FA5)
DMAEMA: 디메틸아미노에틸메타크릴레이트DMAEMA: dimethylaminoethyl methacrylate
DMAAm: 디메틸아크릴아미드DMAAm: dimethylacrylamide
BTEE: 에틸-2-메틸-2-n-부틸텔라닐-프로피오네이트BTEE: ethyl-2-methyl-2-n-butyltelanyl-propionate
DBDT: 디부틸디텔루라이드DBDT: dibutylditelluride
AIBN: 2,2'-아조비스(이소부티로니트릴)AIBN: 2,2'-azobis (isobutyronitrile)
PMA: 프로필렌글리콜모노메틸에테르아세테이트PMA: propylene glycol monomethyl ether acetate
(중합률)(Polymerization rate)
핵자기 공명(NMR) 측정 장치(브루커·바이오스핀사 제조, 모델: AVANCE500(주파수 500MHz))를 이용하여, 1H-NMR을 측정(용매: CDCl3, 내부 표준: TMS)했다. 얻어진 NMR 스펙트럼에 대하여, 모노머 유래의 비닐기와 폴리머 유래의 에스테르 측쇄의 피크의 적분비를 구하고, 모노머의 중합률을 산출했다. 1 H-NMR was measured (solvent: CDCl 3 , internal standard: TMS) using a nuclear magnetic resonance (NMR) measuring device (manufactured by Bruker Biospin, model: AVANCE500 (frequency 500 MHz)). With respect to the obtained NMR spectrum, the integral ratio of the peak of the vinyl group derived from the monomer and the peak of the ester side chain derived from the polymer was calculated, and the polymerization rate of the monomer was calculated.
(중량 평균 분자량(Mw) 및 분자량 분포(PDI))(Weight average molecular weight (Mw) and molecular weight distribution (PDI))
고속 액체 크로마토그래프(도소 제조, 모델 HLC-8320)를 이용하여, 겔 침투 크로마토그래피(GPC)로 구했다. 칼럼은 SHODEX KF-603(φ6mm×150mm)(SHODEX사 제조)을 1개, 이동상으로 10mmol/L 브롬화 리튬/10mmol/L 아세트산/N-메틸-2-피롤리돈 용액, 검출기로 시차 굴절계를 사용했다. 측정 조건은, 칼럼 온도를 40℃, 시료 농도를 20mg/mL, 시료 주입량을 10μm, 유속을 0.2mL/min으로 했다. 표준 물질로서 폴리스티렌(분자량 427,000, 190,000, 96,400, 37,400, 10,200, 2,630, 906)을 사용하여 검량선(교정 곡선)을 작성하고, 중량 평균 분자량(Mw), 수평균 분자량(Mn)을 측정했다. 이 측정값으로부터 분자량 분포(PDI=Mw/Mn)를 산출했다.It was determined by gel permeation chromatography (GPC) using a high-performance liquid chromatography (manufactured by Tosoh, model HLC-8320). 1 column SHODEX KF-603 (φ6mm×150mm) (manufactured by SHODEX), a 10mmol/L lithium bromide/10mmol/L acetic acid/N-methyl-2-pyrrolidone solution as a mobile phase, and a differential refractometer as a detector. did. Measurement conditions were a column temperature of 40°C, a sample concentration of 20 mg/mL, a sample injection amount of 10 μm, and a flow rate of 0.2 mL/min. A calibration curve (calibration curve) was prepared using polystyrene (molecular weight 427,000, 190,000, 96,400, 37,400, 10,200, 2,630, 906) as a standard substance, and the weight average molecular weight (Mw) and number average molecular weight (Mn) were measured. The molecular weight distribution (PDI=Mw/Mn) was calculated from this measured value.
(아민가)(Amine number)
아민가는, 고형분 1g당 염기성 성분과 당량의 수산화 칼륨(KOH)의 질량을 나타낸 것이다. 측정 시료를 테트라하이드로푸란에 용해하고, 전위차 적정 장치(상품명: GT-06, 미츠비시 화학사 제조)를 이용하여, 얻어진 용액을 0.1mol/L 염산/2-프로판올 용액으로 중화 적정했다. 적정 pH 곡선의 변곡점을 적정 종점으로 하여 다음 식에 의하여 아민가(B)를 산출했다.The amine value represents the mass of the basic component and the equivalent of potassium hydroxide (KOH) per 1 g of solid content. The measurement sample was dissolved in tetrahydrofuran, and the obtained solution was subjected to neutralization titration with a 0.1 mol/L hydrochloric acid/2-propanol solution using a potentiometric titrator (trade name: GT-06, manufactured by Mitsubishi Chemical Corporation). The amine value (B) was calculated by the following equation, using the inflection point of the titration pH curve as the titration end point.
B=56.11×Vs×0.1×f/wB=56.11×Vs×0.1×f/w
B: 아민가(mgKOH/g)B: Amine number (mgKOH/g)
Vs: 적정에 필요로 한 0.1mol/L 염산/2-프로판올 용액의 사용량(mL)Vs: Amount of 0.1 mol/L hydrochloric acid/2-propanol solution required for titration (mL)
f: 0.1mol/L 염산(2-프로판올성)의 역가(力價)f: titer of 0.1 mol/L hydrochloric acid (2-propanol)
w: 측정 샘플의 질량(g)(고형분 환산)w: Mass of the measurement sample (g) (converted solid content)
(점도)(Viscosity)
E형 점도계(상품명: TVE-22L, 도키 산업사 제조)를 이용하고, 콘 로터(1°34'×R24)를 사용하여, 25℃하에서, 로터 회전수 60rpm으로 점도를 측정했다. 측정은, 조제 후, 25℃에서 2시간 보관한 착색 조성물에 대하여 행했다.Using an E-type viscometer (trade name: TVE-22L, manufactured by Toki Industries, Ltd.), the viscosity was measured at a rotor rotation speed of 60 rpm at 25°C using a cone rotor (1° 34'×R24). The measurement was performed with respect to the colored composition stored at 25°C for 2 hours after preparation.
(포름알데하이드량)(Amount of formaldehyde)
분산제 조성물 0.5g을 DNPH(2,4-디니트로페닐하이드라진)를 함침한 실리카겔을 충전한 카트리지(워터즈사 제조, Sep Pak(등록상표) DNPH 실리카 플러스 카트리지(상품 번호: WAT037500))에 주입하고, 실온에서 2시간 정치시켰다.0.5 g of the dispersant composition was injected into a cartridge filled with silica gel impregnated with DNPH (2,4-dinitrophenylhydrazine) (manufactured by Waters, Sep Pak (registered trademark) DNPH silica plus cartridge (product number: WAT037500)), It was left to stand at room temperature for 2 hours.
아세토니트릴 4mL로 씻어 내고, 5mL로 만들었다. 액체 크로마토그래프(시마즈 제작소 제조, 상품명: LC-10AD, 칼럼: Pro C18 RS(4.6×250mm, 5μm(YMC사 제조), 이동상: 아세토니트릴/초순수=65:35 용액, 칼럼 온도: 40℃, 유속: 1.0mL/분, 검출 파장: 360nm)를 이용하고, 표준 물질로서 2종 알데하이드-DNPH 혼합 표준액(0.1μg 알데하이드/μL 아세토니트릴, 와코 준야쿠 제조)을 사용하여, 측정을 행했다. 측정 결과로부터 포름알데하이드량을 산출했다.Washed off with 4 mL of acetonitrile and made to 5 mL. Liquid chromatograph (manufactured by Shimadzu Corporation, trade name: LC-10AD, column: Pro C18 RS (4.6×250 mm, 5 μm (manufactured by YMC)), mobile phase: acetonitrile/ultrapure water = 65:35 solution, column temperature: 40° C., flow rate : 1.0 mL/min, detection wavelength: 360 nm), and as a standard substance, two aldehyde-DNPH mixed standard solutions (0.1 μg aldehyde/μL acetonitrile, manufactured by Wako Junyaku) were used, and measurement was performed. The amount of formaldehyde was calculated.
<블록 공중합체의 제조><Production of block copolymer>
(블록 공중합체 No. 1)(Block copolymer No. 1)
아르곤 가스 도입관, 교반기를 구비한 플라스크에 PCL FA5(135.0g), BA(20.5g), AIBN(0.82g), PMA(103.6g)를 주입하고, 아르곤 치환 후, BTEE(7.49g)를 첨가하여, 60℃에서 21시간 반응시켰다. 중합률은, 97.6%였다.PCL FA5 (135.0 g), BA (20.5 g), AIBN (0.82 g), and PMA (103.6 g) were injected into a flask equipped with an argon gas inlet tube and a stirrer. After argon substitution, BTEE (7.49 g) was added. Then, it was reacted at 60°C for 21 hours. The polymerization rate was 97.6%.
얻어진 용액에, 미리 아르곤 치환한 DMAAm(51.1g), PMA(34.1g)의 혼합 용액, AIBN(0.41g)을 첨가하여, 60℃에서 13시간 반응시켰다. 중합률은, 100%였다.To the obtained solution, a mixed solution of DMAAm (51.1 g), PMA (34.1 g), and AIBN (0.41 g), which had been previously substituted with argon, were added, and reacted at 60° C. for 13 hours. The polymerization rate was 100%.
반응 종료 후, 반응액을 교반하고 있는 n-헵탄 중에 부었다. 석출한 폴리머를 흡인 여과, 건조함으로써 블록 공중합체 No. 1을 얻었다. 얻어진 블록 공중합체 No. 1은, Mw가 14,614, PDI가 1.42, 아민가가 0mgKOH/g이었다. 또한, 표 2에 블록 공중합체 No. 1의 조성을 나타냈다. 또한, 공중합체 중의 각 구조 단위의 함유율은, 중합 반응에 이용한 모노머의 주입 비율 및 중합률로부터 산출했다.After completion of the reaction, the reaction solution was poured into stirring n-heptane. By suction filtration and drying the precipitated polymer, the block copolymer No. I got 1. The obtained block copolymer No. In 1, Mw was 14,614, PDI was 1.42, and amine value was 0 mgKOH/g. In addition, in Table 2, block copolymer No. The composition of 1. In addition, the content rate of each structural unit in the copolymer was calculated from the injection rate and the polymerization rate of the monomer used in the polymerization reaction.
(블록 공중합체 No. 2)(Block copolymer No. 2)
아르곤 가스 도입관, 교반기를 구비한 플라스크에 PCL5(275.8g), BMA(45.3g), AIBN(1.64g), PMA(90.3g)를 주입하고, 아르곤 치환 후, BTEE(14.99g), DBDT(18.47g)를 첨가하여, 60℃에서 10시간 반응시켰다. 중합률은, 99.6%였다.PCL5 (275.8g), BMA (45.3g), AIBN (1.64g), and PMA (90.3g) were injected into a flask equipped with an argon gas inlet tube and a stirrer, and after argon substitution, BTEE (14.99g), DBDT ( 18.47 g) was added and reacted at 60°C for 10 hours. The polymerization rate was 99.6%.
얻어진 용액에, 미리 아르곤 치환한 DMAEMA(162.6g), PMA(40.6g)의 혼합 용액을 첨가하여, 60℃에서 11시간 반응시켰다. 중합률은, 98.1%였다.To the obtained solution, a mixed solution of DMAEMA (162.6 g) and PMA (40.6 g), which was previously substituted with argon, was added, and reacted at 60°C for 11 hours. The polymerization rate was 98.1%.
반응 종료 후, 반응액을 교반하고 있는 n-헵탄 중에 부었다. 석출한 폴리머를 흡인 여과, 건조함으로써 블록 공중합체 No. 2를 얻었다. 얻어진 블록 공중합체 No. 2는, Mw가 14,797, PDI가 1.44, 아민가가 118mgKOH/g이었다. 또한, 표 2에 블록 공중합체 No. 2의 조성을 나타냈다. 또한, 공중합체 중의 각 구조 단위의 함유율은, 중합 반응에 이용한 모노머의 주입 비율 및 중합률로부터 산출했다.After completion of the reaction, the reaction solution was poured into stirring n-heptane. By suction filtration and drying the precipitated polymer, the block copolymer No. I got 2. The obtained block copolymer No. In 2, Mw was 14,797, PDI was 1.44, and amine value was 118 mgKOH/g. In addition, in Table 2, block copolymer No. The composition of 2 is shown. In addition, the content rate of each structural unit in the copolymer was calculated from the injection rate and the polymerization rate of the monomer used in the polymerization reaction.
<분산제 조성물><Dispersant composition>
각 블록 공중합체 0.325g을, PMA 0.675g에 용해시켜, 분산제 조성물을 조제했다. 이 분산제 조성물에 대하여 포름알데하이드량을 측정하여, 표 2에 나타냈다.0.325 g of each block copolymer was dissolved in 0.675 g of PMA to prepare a dispersant composition. The amount of formaldehyde was measured for this dispersant composition, and it is shown in Table 2.
분산제 조성물 No. 2는, 분산제인 블록 공중합체의 B블록이 일반식 (1)의 구조 단위를 갖고 있지 않고, 디메틸아미노에틸메타크릴레이트에서 유래하는 구조 단위를 갖고 있다. 이 분산제 조성물 No. 2는, 포름알데하이드량이 1.7ppm으로 높았다. 이에 반해, 분산제 조성물 No. 1은, 분산제인 블록 공중합체의 B블록이 일반식 (1)의 구조 단위를 갖고 있다. 이 분산제 조성물 No. 1은, 포름알데하이드량이 0.1ppm이며, 매우 저감되어 있었다.Dispersant composition No. In 2, the B block of the block copolymer as a dispersant does not have the structural unit of the general formula (1), but has a structural unit derived from dimethylaminoethyl methacrylate. This dispersant composition No. In 2, the amount of formaldehyde was as high as 1.7 ppm. On the other hand, dispersant composition No. In 1, the B block of the block copolymer which is a dispersant has the structural unit of the general formula (1). This dispersant composition No. In 1, the amount of formaldehyde was 0.1 ppm, and it was very reduced.
<알칼리 가용성 수지(바인더 수지)의 합성><Synthesis of alkali-soluble resin (binder resin)>
아르곤 가스 도입관, 교반기를 구비한 플라스크에 메타크릴산(MAA)(40.0g), 벤질메타크릴레이트(BzMA)(160.0g), 프로필렌글리콜모노메틸에테르아세테이트(PMA)(580.0g)를 주입하고, 아르곤 치환 후, 2,2'-아조비스(이소부티로니트릴)(AIBN)(4.0g), n-도데칸티올(6.0g), PMA(20.0g)를 첨가하여 90℃까지 승온했다. 그 용액을 90℃로 유지하면서, 그 용액에 MAA(80.0g), BzMA(320.0g), AIBN(8.0g), n-도데칸티올(12.0g), PMA(50.0g)를 1.5시간에 걸쳐 적하했다. 적하가 종료하고 나서 60분 후, 온도를 110℃까지 승온하여, AIBN(0.8g), PMA(10.0g)를 첨가하여 1시간 반응시키고, 추가로 AIBN(0.8g), PMA(10.0g)를 첨가하여 1시간 반응시키고, 추가로 AIBN(0.8g), PMA(10.0g)를 첨가하여 1시간 반응시켰다.Into a flask equipped with an argon gas inlet and a stirrer, methacrylic acid (MAA) (40.0 g), benzyl methacrylate (BzMA) (160.0 g), and propylene glycol monomethyl ether acetate (PMA) (580.0 g) were injected. , After argon substitution, 2,2'-azobis (isobutyronitrile) (AIBN) (4.0 g), n-dodecanethiol (6.0 g), and PMA (20.0 g) were added, and the temperature was raised to 90°C. While maintaining the solution at 90° C., MAA (80.0 g), BzMA (320.0 g), AIBN (8.0 g), n-dodecanethiol (12.0 g), and PMA (50.0 g) were added to the solution over 1.5 hours. It was loaded. 60 minutes after the dropping was completed, the temperature was raised to 110° C., AIBN (0.8 g) and PMA (10.0 g) were added to react for 1 hour, and further AIBN (0.8 g) and PMA (10.0 g) were added. The mixture was added and reacted for 1 hour, and further AIBN (0.8 g) and PMA (10.0 g) were added and reacted for 1 hour.
얻어진 반응 용액을 실온으로 냉각하고, PMA(240.0g)를 첨가하여, 불휘발분 39.5%의 알칼리 가용성 수지의 용액을 얻었다. 알칼리 가용성 수지의 중량 평균 분자량(Mw)은 9,150, 분자량 분포(PDI)는 1.92, 산가는 128mgKOH/g이었다.The obtained reaction solution was cooled to room temperature, and PMA (240.0 g) was added to obtain a solution of an alkali-soluble resin having a nonvolatile content of 39.5%. The weight average molecular weight (Mw) of the alkali-soluble resin was 9,150, the molecular weight distribution (PDI) was 1.92, and the acid value was 128 mgKOH/g.
<착색 조성물의 조제><Preparation of a colored composition>
착색 조성물 No. 1-1, 1-2Coloring composition No. 1-1, 1-2
안료 8질량부, 블록 공중합체 No. 1 6질량부, 알칼리 가용성 수지 6질량부, PMA 80질량부가 되도록 배합 조성을 조정하고, 0.3mm 지르코니아 비즈 555질량부를 첨가하여, 비즈 밀(상품명: DISPERMAT CA, VMA-GETZMANN GmbH사 제조)로 3시간 혼합하여 충분히 분산시켰다. 분산 종료 후, 비즈를 여과하여 착색 조성물을 얻었다. 안료로는 C. I. Pigment Red 254(상품명: BKCF, 치바·스페셜티·케미컬즈사 제조) 또는 C. I. Pigment Green 58(상품명: FASTOGEN(등록상표) GREEN A310, DIC사 제조)을 사용하여, 착색 조성물 No. 1-1(적색 조성물) 및 착색 조성물 No. 1-2(녹색 조성물)를 조제했다. 얻어진 적색 조성물 및 녹색 조성물의 분산성을 평가한 바, 어느 조성물도 점도가 30mPa·s 이하였다.8 parts by mass of pigment, block copolymer No. 1 Adjust the blending composition so that 6 parts by mass, 6 parts by mass of alkali-soluble resin, and 80 parts by mass of PMA, add 555 parts by mass of 0.3 mm zirconia beads, and use a bead mill (brand name: DISPERMAT CA, manufactured by VMA-GETZMANN GmbH) for 3 hours. It was mixed and sufficiently dispersed. After completion of the dispersion, the beads were filtered to obtain a colored composition. As a pigment, C. I. Pigment Red 254 (trade name: BKCF, manufactured by Chiba Specialty Chemicals) or C. I. Pigment Green 58 (trade name: FASTOGEN (registered trademark) GREEN A310, manufactured by DIC Corporation) was used, and coloring composition No. 1-1 (red composition) and coloring composition No. 1-2 (green composition) was prepared. When the dispersibility of the obtained red composition and green composition was evaluated, the viscosity of either composition was 30 mPa·s or less.
착색 조성물 No. 2-1, 2-2Coloring composition No. 2-1, 2-2
블록 공중합체를 변경한 것 이외에는 착색 조성물 No. 1-1, 1-2의 조제법과 동일하게 하여, 착색 조성물 No. 2-1(적색 조성물) 및 착색 조성물 No. 2-2(녹색 조성물)를 조제했다. 얻어진 적색 조성물 및 녹색 조성물의 분산성을 평가한 바, 어느 조성물도 점도가 30mPa·s 이하였다.Coloring composition No. It carried out similarly to the preparation method of 1-1 and 1-2, and colored composition No. 2-1 (red composition) and coloring composition No. 2-2 (green composition) was prepared. When the dispersibility of the obtained red composition and green composition was evaluated, the viscosity of either composition was 30 mPa·s or less.
착색 조성물 No. 1-1, 1-2는, 모두 점도가 30mPa·s 이하이며, 착색 조성물 No. 2-1, 2-2와 동일하게 안료의 분산성이 양호하다. 따라서, B블록이 일반식 (1)의 구조 단위를 갖고 있는 블록 공중합체는, 아미노기나 4급화 암모늄염기를 갖고 있지 않지만, 분산제로서 사용할 수 있는 것을 이해할 수 있다. 따라서, B블록이 일반식 (1)의 구조 단위를 갖고 있는 블록 공중합체를 사용하면, 포름알데하이드량을 저감시킬 수 있고, 또한, 안료 분산성도 우수한 착색 조성물이 얻어지는 것을 알 수 있다.Coloring composition No. Both 1-1 and 1-2 have a viscosity of 30 mPa·s or less, and coloring composition No. Like 2-1 and 2-2, the dispersibility of the pigment is good. Accordingly, it is understood that the block copolymer in which the B block has the structural unit of the general formula (1) does not have an amino group or a quaternized ammonium base, but can be used as a dispersant. Therefore, it turns out that when a block copolymer in which the B block has the structural unit of the general formula (1) is used, the amount of formaldehyde can be reduced, and a coloring composition having excellent pigment dispersibility can be obtained.
본 발명에는 이하의 실시 형태가 포함된다.The following embodiments are included in the present invention.
(실시 형태 1)(Embodiment 1)
일반식 (1)로 표시되는 구조 단위를 갖는 중합체를 함유하는 것을 특징으로 하는 분산제 조성물.A dispersant composition comprising a polymer having a structural unit represented by the general formula (1).
[일반식 (1)에 있어서, R11은 수소 원자 또는 치환기를 갖고 있어도 되는 쇄상 혹은 환상의 탄화수소기를 나타낸다. R12는 치환기를 갖고 있어도 되는 쇄상 혹은 환상의 탄화수소기를 나타낸다. R11 및 R12가 서로 결합하여 환상 구조를 형성하고 있어도 된다. R13은 수소 원자 또는 메틸기를 나타낸다.][In General Formula (1), R 11 represents a hydrogen atom or a chain or cyclic hydrocarbon group which may have a substituent. R 12 represents a chain or cyclic hydrocarbon group which may have a substituent. R 11 and R 12 may be bonded to each other to form a cyclic structure. R 13 represents a hydrogen atom or a methyl group.]
(실시 형태 2)(Embodiment 2)
상기 중합체의 아민가가, 10mgKOH/g 미만인 실시 형태 1에 기재된 분산제 조성물.The dispersant composition according to Embodiment 1, wherein the polymer has an amine value of less than 10 mgKOH/g.
(실시 형태 3)(Embodiment 3)
상기 중합체가, (메타)아크릴 모노머에서 유래하는 구조 단위를 갖는 A블록과, 상기 일반식 (1)로 표시되는 구조 단위를 갖는 B블록을 갖는 블록 공중합체인 실시 형태 1 또는 2에 기재된 분산제 조성물.The dispersant composition according to Embodiment 1 or 2, wherein the polymer is a block copolymer having a block A having a structural unit derived from a (meth)acrylic monomer and a block B having a structural unit represented by the general formula (1).
(실시 형태 4)(Embodiment 4)
상기 A블록이, 일반식 (10)으로 표시되는 구조 단위를 갖는 실시 형태 3에 기재된 분산제 조성물.The dispersant composition according to Embodiment 3, wherein the A block has a structural unit represented by General Formula (10).
[일반식 (10)에 있어서, n1은 1~10의 정수를 나타낸다. R1은 수소 원자 또는 메틸기를 나타낸다. R2는 탄소수가 1~10인 알킬렌기를 나타낸다. R3은 탄소수가 1~10인 알킬렌기를 나타낸다.][In General Formula (10), n1 represents the integer of 1-10. R 1 represents a hydrogen atom or a methyl group. R 2 represents an alkylene group having 1 to 10 carbon atoms. R 3 represents an alkylene group having 1 to 10 carbon atoms.]
(실시 형태 5)(Embodiment 5)
상기 블록 공중합체 중의 A블록과 B블록의 질량비(A블록/B블록)가, 50/50 이상인 실시 형태 3 또는 4에 기재된 분산제 조성물.The dispersant composition according to Embodiment 3 or 4, wherein the mass ratio (A block/B block) of the A block and the B block in the block copolymer is 50/50 or more.
(실시 형태 6)(Embodiment 6)
상기 블록 공중합체의 분자량 분포(PDI)가, 2.5 이하인 실시 형태 3 내지 5 중 어느 한 항에 기재된 분산제 조성물.The dispersant composition according to any one of Embodiments 3 to 5, wherein the block copolymer has a molecular weight distribution (PDI) of 2.5 or less.
(실시 형태 7)(Embodiment 7)
상기 블록 공중합체가, 리빙 라디칼 중합에 의하여 중합된 것인 실시 형태 3 내지 6 중 어느 한 항에 기재된 분산제 조성물.The dispersant composition according to any one of Embodiments 3 to 6, wherein the block copolymer is polymerized by living radical polymerization.
(실시 형태 8)(Embodiment 8)
실시 형태 1 내지 7 중 어느 한 항에 기재된 분산제 조성물, 착색재, 바인더 수지 및 분산 매체를 함유하는 것을 특징으로 하는 착색 조성물.A coloring composition comprising the dispersant composition, a coloring material, a binder resin, and a dispersion medium according to any one of Embodiments 1 to 7.
(실시 형태 9)(Embodiment 9)
컬러 필터용인 실시 형태 8에 기재된 착색 조성물.The colored composition according to Embodiment 8 for use in color filters.
(실시 형태 10)(Embodiment 10)
실시 형태 9에 기재된 착색 조성물을 이용하여 형성된 착색층을 구비하는 것을 특징으로 하는 컬러 필터.A color filter comprising a colored layer formed using the colored composition according to the ninth embodiment.
Claims (10)
[일반식 (1)에 있어서, R11은 수소 원자 또는 치환기를 갖고 있어도 되는 쇄상 혹은 환상의 탄화수소기를 나타낸다. R12는 치환기를 갖고 있어도 되는 쇄상 혹은 환상의 탄화수소기를 나타낸다. R11 및 R12가 서로 결합하여 환상 구조를 형성하고 있어도 된다. R13은 수소 원자 또는 메틸기를 나타낸다.]A dispersant composition comprising a polymer having a structural unit represented by the general formula (1).
[In General Formula (1), R 11 represents a hydrogen atom or a chain or cyclic hydrocarbon group which may have a substituent. R 12 represents a chain or cyclic hydrocarbon group which may have a substituent. R 11 and R 12 may be bonded to each other to form a cyclic structure. R 13 represents a hydrogen atom or a methyl group.]
상기 중합체의 아민가가, 10mgKOH/g 미만인, 분산제 조성물.The method according to claim 1,
The amine value of the polymer is less than 10 mgKOH / g, dispersant composition.
상기 중합체가, (메타)아크릴 모노머에서 유래하는 구조 단위를 갖는 A블록과, 상기 일반식 (1)로 표시되는 구조 단위를 갖는 B블록을 갖는 블록 공중합체인, 분산제 조성물.The method according to claim 1 or 2,
The dispersant composition, wherein the polymer is a block copolymer having a block A having a structural unit derived from a (meth)acrylic monomer and a block B having a structural unit represented by the general formula (1).
상기 A블록이, 일반식 (10)으로 표시되는 구조 단위를 갖는, 분산제 조성물.
[일반식 (10)에 있어서, n1은 1~10의 정수를 나타낸다. R1은 수소 원자 또는 메틸기를 나타낸다. R2는 탄소수가 1~10인 알킬렌기를 나타낸다. R3은 탄소수가 1~10인 알킬렌기를 나타낸다.]The method of claim 3,
The dispersant composition, wherein the A block has a structural unit represented by General Formula (10).
[In General Formula (10), n1 represents the integer of 1-10. R 1 represents a hydrogen atom or a methyl group. R 2 represents an alkylene group having 1 to 10 carbon atoms. R 3 represents an alkylene group having 1 to 10 carbon atoms.]
상기 블록 공중합체 중의 A블록과 B블록의 질량비(A블록/B블록)가, 50/50 이상인, 분산제 조성물.The method according to claim 3 or 4,
The dispersant composition, wherein the mass ratio of the A block and the B block (A block/B block) in the block copolymer is 50/50 or more.
상기 블록 공중합체의 분자량 분포(PDI)가, 2.5 이하인, 분산제 조성물.The method according to any one of claims 3 to 5,
The molecular weight distribution (PDI) of the block copolymer is 2.5 or less, the dispersant composition.
상기 블록 공중합체가, 리빙 라디칼 중합에 의하여 중합된 것인, 분산제 조성물.The method according to any one of claims 3 to 6,
The block copolymer is polymerized by living radical polymerization, a dispersant composition.
컬러 필터용인, 착색 조성물.The method of claim 8,
A coloring composition for a color filter.
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JP2009265515A (en) | 2008-04-28 | 2009-11-12 | The Inctec Inc | Colored photosensitive composition for color filter |
JP2013119568A (en) | 2011-12-06 | 2013-06-17 | Otsuka Chem Co Ltd | Block copolymer, dispersant, and pigment dispersion composition |
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JP2003064139A (en) * | 2001-08-24 | 2003-03-05 | Dainippon Toryo Co Ltd | Pigment-dispersing resin and coloring paint composition containing the same resin |
JP2003321633A (en) * | 2002-05-01 | 2003-11-14 | Canon Inc | Ink, color filter and method for producing the same, liquid crystal panel, computer and image display device |
JP5882109B2 (en) * | 2012-04-03 | 2016-03-09 | 株式会社Dnpファインケミカル | Pigment dispersion composition, photosensitive colored resin composition for color filter, and color filter |
TWI643877B (en) * | 2013-08-30 | 2018-12-11 | Kuraray Co., Ltd. | Modified acrylic block copolymer and production method and use thereof |
JP2015067676A (en) * | 2013-09-27 | 2015-04-13 | 理想科学工業株式会社 | Nonaqueous pigment ink |
JP6256163B2 (en) * | 2013-11-20 | 2018-01-10 | 株式会社リコー | Inkjet ink |
JP6044727B2 (en) * | 2014-04-26 | 2016-12-14 | 星光Pmc株式会社 | Resin composition and method for producing resin composition |
KR102537749B1 (en) * | 2017-06-14 | 2023-05-26 | 산요 시키소 가부시키가이샤 | Pigment dispersant and colored composition including the same |
JP7142541B2 (en) * | 2017-11-29 | 2022-09-27 | 大塚化学株式会社 | Method for producing polymerization product containing block copolymer |
JP2019142787A (en) * | 2018-02-16 | 2019-08-29 | Jsr株式会社 | Protein stabilizer |
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JP2009265515A (en) | 2008-04-28 | 2009-11-12 | The Inctec Inc | Colored photosensitive composition for color filter |
JP2013119568A (en) | 2011-12-06 | 2013-06-17 | Otsuka Chem Co Ltd | Block copolymer, dispersant, and pigment dispersion composition |
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TWI839369B (en) | 2024-04-21 |
JPWO2020031634A1 (en) | 2021-09-02 |
TW202017646A (en) | 2020-05-16 |
CN112334505A (en) | 2021-02-05 |
JP7299895B2 (en) | 2023-06-28 |
WO2020031634A1 (en) | 2020-02-13 |
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