WO2014084273A1 - ペースト組成物、ならびに焼成体およびその製造方法 - Google Patents
ペースト組成物、ならびに焼成体およびその製造方法 Download PDFInfo
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- WO2014084273A1 WO2014084273A1 PCT/JP2013/081950 JP2013081950W WO2014084273A1 WO 2014084273 A1 WO2014084273 A1 WO 2014084273A1 JP 2013081950 W JP2013081950 W JP 2013081950W WO 2014084273 A1 WO2014084273 A1 WO 2014084273A1
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- meth
- paste composition
- polymer
- acrylic
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- 239000000203 mixture Substances 0.000 title claims abstract description 103
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 60
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- 125000000524 functional group Chemical group 0.000 claims abstract description 22
- 239000001257 hydrogen Substances 0.000 claims abstract description 22
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 22
- 125000003545 alkoxy group Chemical group 0.000 claims abstract description 18
- 125000004104 aryloxy group Chemical group 0.000 claims abstract description 14
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims abstract description 12
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims abstract description 8
- 239000000178 monomer Substances 0.000 claims description 50
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- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 6
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- IAXXETNIOYFMLW-GYSYKLTISA-N [(1r,3r,4r)-4,7,7-trimethyl-3-bicyclo[2.2.1]heptanyl] 2-methylprop-2-enoate Chemical compound C1C[C@@]2(C)[C@H](OC(=O)C(=C)C)C[C@@H]1C2(C)C IAXXETNIOYFMLW-GYSYKLTISA-N 0.000 description 5
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- 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 3
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- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
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- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 3
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- ZWAJLVLEBYIOTI-UHFFFAOYSA-N cyclohexene oxide Chemical compound C1CCCC2OC21 ZWAJLVLEBYIOTI-UHFFFAOYSA-N 0.000 description 3
- 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 3
- 238000007607 die coating method Methods 0.000 description 3
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- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 238000010528 free radical solution polymerization reaction Methods 0.000 description 3
- 238000007646 gravure printing Methods 0.000 description 3
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- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 3
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- CXWXQJXEFPUFDZ-UHFFFAOYSA-N tetralin Chemical compound C1=CC=C2CCCCC2=C1 CXWXQJXEFPUFDZ-UHFFFAOYSA-N 0.000 description 3
- UFLXKQBCEYNCDU-UHFFFAOYSA-N (2,2,6,6-tetramethylpiperidin-4-yl) 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OC1CC(C)(C)NC(C)(C)C1 UFLXKQBCEYNCDU-UHFFFAOYSA-N 0.000 description 2
- PNWODCMQYWCKBF-UHFFFAOYSA-N (2-hydroxy-2-methylpropyl) 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCC(C)(C)O PNWODCMQYWCKBF-UHFFFAOYSA-N 0.000 description 2
- DAFHKNAQFPVRKR-UHFFFAOYSA-N (3-hydroxy-2,2,4-trimethylpentyl) 2-methylpropanoate Chemical compound CC(C)C(O)C(C)(C)COC(=O)C(C)C DAFHKNAQFPVRKR-UHFFFAOYSA-N 0.000 description 2
- ONMLAAZEQUPQSE-UHFFFAOYSA-N (3-hydroxy-2,2-dimethylpropyl) 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCC(C)(C)CO ONMLAAZEQUPQSE-UHFFFAOYSA-N 0.000 description 2
- YUTHQCGFZNYPIG-UHFFFAOYSA-N 1-[2-(2-methylprop-2-enoyloxy)ethyl]cyclohexane-1,2-dicarboxylic acid Chemical compound CC(=C)C(=O)OCCC1(C(O)=O)CCCCC1C(O)=O YUTHQCGFZNYPIG-UHFFFAOYSA-N 0.000 description 2
- LZDYZEGISBDSDP-UHFFFAOYSA-N 2-(1-ethylaziridin-1-ium-1-yl)ethanol Chemical compound OCC[N+]1(CC)CC1 LZDYZEGISBDSDP-UHFFFAOYSA-N 0.000 description 2
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- KKVKUNIBLLLFHA-UHFFFAOYSA-N [1-(hydroxymethyl)cyclohexyl]methyl prop-2-enoate Chemical compound C=CC(=O)OCC1(CO)CCCCC1 KKVKUNIBLLLFHA-UHFFFAOYSA-N 0.000 description 2
- 125000005073 adamantyl group Chemical group C12(CC3CC(CC(C1)C3)C2)* 0.000 description 2
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- FVQMJJQUGGVLEP-UHFFFAOYSA-N (2-methylpropan-2-yl)oxy 2-ethylhexaneperoxoate Chemical compound CCCCC(CC)C(=O)OOOC(C)(C)C FVQMJJQUGGVLEP-UHFFFAOYSA-N 0.000 description 1
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- NHTMVDHEPJAVLT-UHFFFAOYSA-N Isooctane Chemical compound CC(C)CC(C)(C)C NHTMVDHEPJAVLT-UHFFFAOYSA-N 0.000 description 1
- YIVJZNGAASQVEM-UHFFFAOYSA-N Lauroyl peroxide Chemical compound CCCCCCCCCCCC(=O)OOC(=O)CCCCCCCCCCC YIVJZNGAASQVEM-UHFFFAOYSA-N 0.000 description 1
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
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- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- ORLQHILJRHBSAY-UHFFFAOYSA-N [1-(hydroxymethyl)cyclohexyl]methanol Chemical compound OCC1(CO)CCCCC1 ORLQHILJRHBSAY-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 1
- 125000002947 alkylene group Chemical group 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 description 1
- 229910002113 barium titanate Inorganic materials 0.000 description 1
- 235000019400 benzoyl peroxide Nutrition 0.000 description 1
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 1
- 229910000416 bismuth oxide Inorganic materials 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000012986 chain transfer agent Substances 0.000 description 1
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- 238000006243 chemical reaction Methods 0.000 description 1
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- 238000004581 coalescence Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 125000000753 cycloalkyl group Chemical group 0.000 description 1
- 125000002933 cyclohexyloxy group Chemical group C1(CCCCC1)O* 0.000 description 1
- XJOBOFWTZOKMOH-UHFFFAOYSA-N decanoyl decaneperoxoate Chemical compound CCCCCCCCCC(=O)OOC(=O)CCCCCCCCC XJOBOFWTZOKMOH-UHFFFAOYSA-N 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- LSXWFXONGKSEMY-UHFFFAOYSA-N di-tert-butyl peroxide Chemical compound CC(C)(C)OOC(C)(C)C LSXWFXONGKSEMY-UHFFFAOYSA-N 0.000 description 1
- TYIXMATWDRGMPF-UHFFFAOYSA-N dibismuth;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Bi+3].[Bi+3] TYIXMATWDRGMPF-UHFFFAOYSA-N 0.000 description 1
- SZXQTJUDPRGNJN-UHFFFAOYSA-N dipropylene glycol Chemical compound OCCCOCCCO SZXQTJUDPRGNJN-UHFFFAOYSA-N 0.000 description 1
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 125000004185 ester group Chemical group 0.000 description 1
- MVKYQTGCKJXECD-UHFFFAOYSA-N ethane-1,2-diol;prop-1-ene Chemical compound CC=C.CC=C.OCCO MVKYQTGCKJXECD-UHFFFAOYSA-N 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 238000005227 gel permeation chromatography Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000002391 heterocyclic compounds Chemical class 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
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- 230000003993 interaction Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 125000003253 isopropoxy group Chemical group [H]C([H])([H])C([H])(O*)C([H])([H])[H] 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 239000005355 lead glass Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 125000005641 methacryl group Chemical group 0.000 description 1
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 1
- 229940095102 methyl benzoate Drugs 0.000 description 1
- QYZFTMMPKCOTAN-UHFFFAOYSA-N n-[2-(2-hydroxyethylamino)ethyl]-2-[[1-[2-(2-hydroxyethylamino)ethylamino]-2-methyl-1-oxopropan-2-yl]diazenyl]-2-methylpropanamide Chemical compound OCCNCCNC(=O)C(C)(C)N=NC(C)(C)C(=O)NCCNCCO QYZFTMMPKCOTAN-UHFFFAOYSA-N 0.000 description 1
- 125000006606 n-butoxy group Chemical group 0.000 description 1
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000000740 n-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000003506 n-propoxy group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])O* 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 229940078552 o-xylene Drugs 0.000 description 1
- 150000001451 organic peroxides Chemical class 0.000 description 1
- 239000000075 oxide glass Substances 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 125000000951 phenoxy group Chemical group [H]C1=C([H])C([H])=C(O*)C([H])=C1[H] 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 125000002467 phosphate group Chemical group [H]OP(=O)(O[H])O[*] 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 125000005936 piperidyl group Chemical group 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 1
- YPVDWEHVCUBACK-UHFFFAOYSA-N propoxycarbonyloxy propyl carbonate Chemical compound CCCOC(=O)OOC(=O)OCCC YPVDWEHVCUBACK-UHFFFAOYSA-N 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000001226 reprecipitation Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000005394 sealing glass Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000005368 silicate glass Substances 0.000 description 1
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical class [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- PXXNTAGJWPJAGM-UHFFFAOYSA-N vertaline Natural products C1C2C=3C=C(OC)C(OC)=CC=3OC(C=C3)=CC=C3CCC(=O)OC1CC1N2CCCC1 PXXNTAGJWPJAGM-UHFFFAOYSA-N 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
- C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
- C08F220/1804—C4-(meth)acrylate, e.g. butyl (meth)acrylate, isobutyl (meth)acrylate or tert-butyl (meth)acrylate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/007—After-treatment
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F120/00—Homopolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide or nitrile thereof
- C08F120/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F120/10—Esters
- C08F120/20—Esters of polyhydric alcohols or polyhydric phenols, e.g. 2-hydroxyethyl (meth)acrylate or glycerol mono-(meth)acrylate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F20/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide or nitrile thereof
- C08F20/02—Monocarboxylic acids having less than ten carbon atoms, Derivatives thereof
- C08F20/10—Esters
- C08F20/26—Esters containing oxygen in addition to the carboxy oxygen
- C08F20/28—Esters containing oxygen in addition to the carboxy oxygen containing no aromatic rings in the alcohol moiety
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
- C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
- C08F220/1806—C6-(meth)acrylate, e.g. (cyclo)hexyl (meth)acrylate or phenyl (meth)acrylate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/20—Esters of polyhydric alcohols or phenols, e.g. 2-hydroxyethyl (meth)acrylate or glycerol mono-(meth)acrylate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F226/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen
- C08F226/06—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen by a heterocyclic ring containing nitrogen
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/04—Homopolymers or copolymers of esters
- C08L33/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
- C08L33/08—Homopolymers or copolymers of acrylic acid esters
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
- C09D133/14—Homopolymers or copolymers of esters of esters containing halogen, nitrogen, sulfur or oxygen atoms in addition to the carboxy oxygen
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/005—Electrodes
- H01G4/008—Selection of materials
- H01G4/0085—Fried electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/018—Dielectrics
- H01G4/06—Solid dielectrics
- H01G4/08—Inorganic dielectrics
- H01G4/12—Ceramic dielectrics
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/228—Terminals
- H01G4/232—Terminals electrically connecting two or more layers of a stacked or rolled capacitor
- H01G4/2325—Terminals electrically connecting two or more layers of a stacked or rolled capacitor characterised by the material of the terminals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
- C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
- C08F220/1811—C10or C11-(Meth)acrylate, e.g. isodecyl (meth)acrylate, isobornyl (meth)acrylate or 2-naphthyl (meth)acrylate
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/20—Conductive material dispersed in non-conductive organic material
- H01B1/22—Conductive material dispersed in non-conductive organic material the conductive material comprising metals or alloys
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/018—Dielectrics
- H01G4/06—Solid dielectrics
- H01G4/08—Inorganic dielectrics
- H01G4/12—Ceramic dielectrics
- H01G4/129—Ceramic dielectrics containing a glassy phase, e.g. glass ceramic
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/30—Stacked capacitors
Definitions
- the present invention relates to a paste composition, a fired body, and a method for producing the same.
- Paste compositions containing inorganic particles such as conductive powder and ceramic powder are used to obtain sintered bodies of various shapes.
- conductive paste compositions containing conductive powder are used for circuit formation, capacitor production, and the like.
- Ceramic paste compositions containing ceramic powder and glass paste compositions containing glass powder are used in the production of dielectric layers of plasma display panels (PDP) and multilayer ceramic capacitors (MLCC), fluorescent display tubes and the like.
- the paste composition containing ITO is used as a transparent electrode material or the like for manufacturing a PDP, a liquid crystal display panel (LCD), a circuit formation of a solar cell panel driving unit, and the like.
- paste compositions containing phosphors are used for inorganic electroluminescence (EL) elements, PDPs, and the like, and paste compositions containing silver are used for solar cells, LEDs, and the like.
- EL electroluminescence
- silver are used for solar cells, LEDs, and the like.
- These inorganic particle-containing paste compositions are, for example, screen printing, die coating printing, doctor blade printing, roll coating printing, offset printing, gravure printing, flexographic printing, inkjet printing, dispensing printing, etc.
- a sintered body having a desired shape can be obtained by processing into a predetermined shape by a casting method or the like for processing and then firing.
- inorganic particle-containing paste composition used when manufacturing the dielectric layer (for example, MLCC), ethyl cellulose (EC) or polyvinyl butyral (PVB) is often used as a binder.
- paste compositions containing EC and PVB are known to have good coatability and dispersibility of inorganic particles, but poor baking properties.
- the present invention provides a paste composition having an appropriate viscosity and excellent coating properties and firing properties, a method for producing a fired product using the paste composition, and a fired product obtained by the production method To do.
- a paste composition according to an embodiment of the present invention includes a (meth) acrylic (co) polymer containing 20 to 100 mol% of a structural unit (A) represented by the following general formula (1).
- R 1 represents a hydrogen atom or a methyl group
- R 2 is X ⁇ 13.5 ⁇
- Y> has a diameter of 6.15A, volume 80 ⁇ 3 larger group
- X represents a long side Y represents a length in the short side direction
- n Represents a number from 5 to 2000.
- the “functional group having a hydrogen bond” refers to a group having a property of forming a hydrogen bond.
- (meth) acryl means “acryl or methacryl”
- (co) polymer means a polymer or copolymer.
- the “(meth) acrylic copolymer” is selected from (meth) acrylic acid, (meth) acrylic acid salts, and (meth) acrylic acid esters as monomer units in the copolymer. A copolymer containing at least 50 mol% of at least one species. 2. 2. The paste composition according to 1 above, wherein the (meth) acrylic (co) polymer contains 20 to 100 mol% of a monomer (a) represented by the following general formula (2): It can be a component (co) polymer of components.
- the (meth) acrylic copolymer may further include a structural unit (B) represented by the following general formula (3).
- R 3 represents a hydrogen atom or a methyl group
- R 4 is X ⁇ 13.5 ⁇
- Y> has a diameter of 6.15A, volume 80 ⁇ 3 larger group (wherein, X represents a long side And Y represents a length in the short side direction), and a group having no hydrogen bondable functional group, an alkoxy group, or an aryloxy group M represents a number from 5 to 1500.) 4).
- the total amount of the monomer (a) and the monomer (b) represented by the following general formula (4) in the monomer component is 70 to 100 mol%. Can be.
- the (meth) acrylic (co) polymer may have a weight average molecular weight of 1,000 to 200,000. 8).
- the paste composition according to any one of 1 to 7 above may further include a solvent and an inorganic powder or a dispersant. 9.
- the (meth) acrylic (co) polymer and the solvent can satisfy the relationship of the following formula (5).
- the paste composition according to any one of 1 to 9 can be used for producing a green sheet of a multilayer ceramic capacitor.
- a method for producing a fired body according to another aspect of the present invention includes a step of applying the paste composition according to any one of 1 to 10 above to a substrate, and a step of drying the applied paste composition. Baking the base material containing the dried paste composition. 12 The fired body according to another embodiment of the present invention is obtained by the method for producing a fired body as described in 11 above.
- the paste composition by including the (meth) acrylic (co) polymer containing 20 to 100 mol% of the structural unit (A) represented by the general formula (1), an appropriate viscosity can be obtained. And excellent in both coatability and fireability.
- parts means “parts by mass” and “%” means “mass%” unless otherwise specified.
- Paste Composition A paste composition according to an embodiment of the present invention comprises a (meth) acrylic (co) polymer containing 20 to 100 mol% of a structural unit (A) represented by the following general formula (1). Including.
- R 1 represents a hydrogen atom or a methyl group
- R 2 is X ⁇ 13.5 ⁇
- Y> has a diameter of 6.15A, volume 80 ⁇ 3 larger group
- X represents a long side Y represents a length in the short side direction
- n Represents a number from 5 to 2000.
- the (meth) acrylic (co) polymer contains 20 to 100 mol% (preferably 30 to 90 mol) of the structural unit (A) represented by the general formula (1). %, More preferably 40 to 80 mol%).
- R 2 has a diameter of X ⁇ 13.5 ⁇ , Y> 6.15 ⁇ , since the volume is greater than 80 ⁇ 3, the steric hindrance is larger group.
- X, Y, and volume of R 2 are values calculated by the EF method of MOPAC PM3.
- the length in the long side direction” in X is a position farthest from the carbon atom in R 2 bonded to the oxygen atom bonded adjacent to R 2 in the above formula (1). Means the distance to the atom in R 2 , and “the length in the short side direction” in Y means the length of the longest portion in the direction intersecting the long side direction.
- the (meth) acrylic (co) polymer has a diameter of R ⁇ 2 in the general formula (1) of X ⁇ 13.5 ⁇ and Y> 6.15 ⁇ , by volume is 80 ⁇ 3, since the steric hindrance between molecules caused by the bulkiness of the groups represented by R 2 in the general formula (1), wherein the (meth) acrylic (co) polymer Intramolecular and intermolecular entanglement can be reduced, and as a result, the applicability of the paste composition according to this embodiment is enhanced.
- the (meth) acrylic (co) polymer is excellent in calcinability (there is little residual carbon when the (meth) acrylic (co) polymer is calcined).
- examples of the group obtained by removing a functional group having a hydrogen bond, a group having an alkoxy group, or a group having an aryloxy group from R 2 include a branched alkyl group (for example, isoalkyl).
- cyclic groups eg, cyclic hydrocarbons, heterocyclic compounds
- cyclic groups eg, cyclic hydrocarbons, heterocyclic compounds
- R 2 represents X ⁇ 8 ⁇ and Y> 6.15 ⁇ in that the entanglement within and between the molecules in the (meth) acrylic (co) polymer can be further reduced. It is preferable that it is a group having a diameter of greater than 85 3 .
- the (meth) acrylic (co) polymer is 20 to 100 mol% (preferably 30 to 90) of the monomer (a) represented by the following general formula (2).
- R 1 and R 2 have the same meanings as R 1 and R 2 in the general formula (1).
- the functional group having hydrogen bonding included in the (meth) acrylic (co) polymer is formed by forming a hydrogen bond.
- Examples of the functional group having hydrogen bonding property contained in the (meth) acrylic (co) polymer include a hydroxyl group, a carboxyl group, an amino group, an amide group, an acetoacetoxy group, an acid anhydride group, a sulfonic acid group, It can be at least one selected from a phosphate group, a thiol group, and a heterocyclic group.
- the alkoxy group contained in the group having an alkoxy group includes a linear alkoxy group such as a methoxy group, an ethoxy group, an n-propoxy group, and an n-butoxy group, a branched group such as an isopropoxy group and an ethylhexyloxy group.
- Examples thereof include cyclic alkoxy groups such as alkyl groups and cyclohexyloxy groups, and branched alkoxy groups and cyclic alkoxy groups are preferred.
- examples of the aryloxy group contained in the group having an aryloxy group include an optionally substituted phenoxy group and naphthoxy group.
- the functional group having hydrogen bonding property the group having alkoxy group and the group having aryloxy group, the functional group having hydrogen bonding property is preferable.
- the body (a) includes 2-hydroxyisobutyl (meth) acrylate, 2-hydroxyisopropyl (meth) acrylate, 2,2,4-trimethyl-3-hydroxypentyl (meth) acrylate, cyclohexanedimethanol mono (meth) acrylate 2- (meth) acryloyloxyethyl hexahydrophthalic acid, 3,4-epoxycyclohexylmethyl (meth) acrylate, pentamethylpiperidyl (meth) acrylate, tetramethylpiperidyl (meth) acrylate, tetrahydrofurfuryl (meth) acrylate , ⁇ -butyrolactone (meta Acrylate, 2,2-dimethyl-3-hydroxypropyl (meth) acrylate, 2,2,4-trimethyl-3-hydroxypentyl (meth) acrylate, cyclohexanedimethanol mono (meth) acrylate 2- (meth) acrylo
- the (meth) acrylic (co) polymer may further include a structural unit (B) represented by the following general formula (3).
- R 3 represents a hydrogen atom or a methyl group
- R 4 is X ⁇ 13.5 ⁇
- Y> has a diameter of 6.15A, volume 80 ⁇ 3 larger group (wherein, X represents a long side And Y represents a length in the short side direction), and a group having no hydrogen bondable functional group, an alkoxy group, or an aryloxy group M represents a number from 5 to 1500.
- the total amount of the structural unit (A) and the structural unit (B) in the (meth) acrylic (co) polymer is 70 to 100 mol%, preferably 80 to 90 mol%.
- X, Y, and volume of R 4 are values calculated by the EF method of MOPAC PM3, similarly to R 2 in the general formula (1).
- the “length in the long side direction” in X is the position farthest from the carbon atom in R 4 bonded to the oxygen atom bonded adjacent to R 4 in the above formula (3). It means the distance to the atom in R 4 in, the "length of the short side direction" in Y, refers to the length of the longest portion in a direction intersecting the longitudinal direction.
- this monomer (a) and this monomer (b) are preferably 70 to 100 mol%, more preferably 80 to 90 mol% of the total amount of monomer components.
- R 4 in the monomer (b) represented by the general formula (4) is the same as the size of the group represented by R 2 in the monomer (a) represented by the general formula (2).
- R 4 is a group that has a size group (group with a large steric hindrance), and does not have any of a functional group having hydrogen bonding property, an alkoxy group, or an aryloxy group.
- Examples of the monomer (b) include tert-butyl (meth) acrylate, cyclohexyl (meth) acrylate, isobornyl (meth) acrylate, dicyclopentanyl (meth) acrylate, adamantyl (meth) acrylate, and the like. Of these, (meth) acrylic acid esters such as tert-butyl (meth) acrylate, cyclohexyl (meth) acrylate, and isobornyl (meth) acrylate are preferred. These monomers (b) can be used alone or in combination of two or more.
- the (meth) acrylic (co) polymer may further have another structural unit (C).
- the proportion of the other structural unit (C) in the (meth) acrylic (co) polymer is, for example, 0 to 30 mol%, preferably 0 to 20 mol%.
- Acrylic (co) polymers can be produced.
- the monomer (c) include methyl (meth) acrylate, ethyl (meth) acrylate, isobutyl (meth) acrylate, n-butyl (meth) acrylate, lauryl (meth) acrylate, ( Meth) acrylic acid styryl, styrene, vinyl compound, (meth) acrylic acid, maleic anhydride, 2-methacryloyloxyethyl succinic acid, 2- (meth) acryloyloxyethyl phthalic acid, acetoacetoxy (meth) acrylate, N , N-dimethylaminoethyl (meth) acrylate, N, N-diethylaminoethyl (meth) acrylate,
- the content of the (meth) acrylic (co) polymer is 1 to 20 of the total amount of the paste composition according to the present embodiment from the viewpoint of securing an appropriate viscosity and good coating properties and firing properties. %, Preferably 5 to 10%.
- the (meth) acrylic (co) polymer preferably has an SP value of 7 to 10 and more preferably 8 to 10 from the viewpoint of having an appropriate viscosity.
- the SP value of the (meth) acrylic (co) polymer is an index indicating the polarity of the (co) polymer, and is a measure for confirming the solubility in the solvent used in the preparation of the paste.
- the SP value of the (meth) acrylic (co) polymer and the SP value of the solvent to be described later are the constants of Okitsu's ⁇ F (written by Toshinao Okitsu, “Adhesion”, Vol. 40, No. 8, page 342) 1996))).
- the (meth) acrylic (co) polymer preferably has a weight average molecular weight of 1,000 to 200,000, preferably 10,000 to 100,000, from the viewpoint of ensuring good coatability. More preferably. If the weight average molecular weight of the (meth) acrylic (co) polymer is less than 1,000, the desired paste viscosity cannot be obtained, while the weight average molecular weight of the (meth) acrylic (co) polymer. If it exceeds 200,000, the stringiness becomes high and sufficient coatability cannot be obtained. In the present invention, as a method for measuring the molecular weight, the method described in Examples described later is used.
- the polymerization method of the (meth) acrylic polymer is not particularly limited, but it is usually preferable to use solution polymerization.
- solution polymerization is performed by charging a predetermined organic solvent, monomer, and polymerization initiator in a polymerization tank, and heating and reacting at a suitable polymerization temperature in a nitrogen stream for several hours.
- at least a part of the organic solvent, the monomer, the polymerization initiator and / or the chain transfer agent may be sequentially added.
- organic solvent for polymerization examples include fragrances exemplified by benzene, toluene, ethylbenzene, n-propylbenzene, t-butylbenzene, o-xylene, m-xylene, p-xylene, tetralin, decalin, aromatic naphtha and the like.
- Aliphatic hydrocarbons such as n-hexane, n-heptane, n-octane, i-octane, n-decane, dipentene, petroleum spirit, petroleum naphtha, turpentine oil, etc.
- Hydrogen for example, alkyl acetate (wherein alkyl includes methyl, ethyl, propyl, butyl, amyl, etc., the same shall apply hereinafter), esters exemplified by methyl benzoate, etc., for example, ethylene glycol or diethylene glycol Monoacetates, diacetates, alkyl ether acetates (eg , Diethylene glycol monobutyl ether acetate), derivatives of ethylene glycol exemplified by monoalkyl ether, dialkyl ether, and the like, for example, monoacetate, diacetate, alkyl ether of any one of propylene glycol, dipropylene ethylene glycol, tripropylene glycol Propylene glycol derivatives exemplified by acetate, monoalkyl ether (eg, tripropylene glycol monobutyl ether), dialkyl ether, etc., eg, ketones exemplified by acetone,
- Texanol (2,2,4-trimethylpentane-1,3-diol monoisobutyrate), etc. It can be mentioned.
- These organic solvents can be used alone or in combination of two or more.
- a solvent having a high boiling point is preferable, and specifically, a solvent having a boiling point of 50 to 300 ° C. is preferable.
- polymerization initiator examples include benzoyl peroxide, lauroyl peroxide, caproyl peroxide, di-t-butyl peroxide, di-i-propyl peroxydicarbonate, di-2-ethylhexyl peroxydicarbonate, t Organic peroxides exemplified by butyl peroxybivalate, such as 2,2′-azobis-i-butyronitrile, 2,2′-azobis-2,4-dimethylvaleronitrile, 2,2′-azobis An azo compound exemplified by -4-methoxy-2,4-dimethylvaleronitrile and the like can be used alone or in combination.
- the polymerization initiator is generally used in an amount of about 0.01 to 5 parts by weight, preferably about 0.02 to 2 parts by weight, per 100 parts by weight of the total amount of monomers.
- the polymerization temperature is preferably 40 to 180 ° C. If it is lower than 40 ° C, a sufficient reaction rate may not be obtained. Further, when the polymerization temperature exceeds 180 ° C., depolymerization may occur. In addition, when an unreacted monomer is contained in the polymer obtained by the solution polymerization method or the like, it can be purified by a reprecipitation method using methanol or the like in order to remove the monomer.
- the paste composition according to the present embodiment can further include a solvent and an inorganic powder or a dispersant.
- solvents examples include organic solvents.
- compatibility between the (meth) acrylic (co) polymer and the solvent is increased.
- the stability when the paste composition is prepared is increased.
- the content of the solvent in the paste composition according to this embodiment is preferably 10 to 60%, more preferably 30 to 50% of the total amount of the paste composition according to this embodiment.
- the solvent that can be used in the paste composition according to this embodiment is preferably a solvent that does not become a residue during firing.
- Preferred solvents include, for example, terpineol, dihydroterpineol, dihydrotapineyl acetate, butyl carbitol acetate, dipropylene glycol, dipropylene glycol monomethyl ether, butyl carbitol, diethylene glycol alkyl ether acetate (wherein alkyl includes n- Examples thereof include butyl, propyl, ethyl, etc.), ethylene glycol alkyl ether acetate, ethylene glycol diacetate, diethylene glycol alkyl ether, ethylene glycol alkyl ether, dipropylene glycol alkyl ether, propylene glycol alkyl ether acetate, 2 2,4-trimethylpentane-1,3-diol monoisobutyrate or 2, , 4-trimethylpentane-1,3-d
- a particularly preferable solvent is a mixed organic solvent in which two or more of the above are combined.
- the organic solvent in this invention may contain components other than the said ether compound in the range which does not impair the objective of this invention.
- the boiling point of the solvent is preferably 150 to 300 ° C., more preferably 220 to 280 ° C. If the boiling point is less than 150 ° C, the drying rate of the paste after screen printing may be increased. On the other hand, if it exceeds 300 ° C, the drying rate may be decreased, and in any case, workability may be reduced. is there.
- inorganic powder or dispersant examples include metal powder, metal oxide powder, glass powder, pigment powder, phosphor powder, and ceramic powder. These inorganic powders can be used alone or in combination of two or more.
- metal powder examples include powder made of nickel, palladium, platinum, gold, silver, copper, iron, aluminum, tungsten, alloys thereof, and the like.
- Examples of the metal oxide powder include ITO, antimony-doped tin oxide (ATO), fluorine-doped tin oxide (FTO), and the like.
- Examples of the glass powder include bismuth oxide glass, silicate glass, lead glass, zinc glass, boron glass, and glass powders of various silicon oxides.
- the ceramic powder examples include alumina, zirconia, titanium oxide, barium titanate, alumina nitride, silicon nitride, and boron nitride.
- examples of the dispersant that can be used in the paste composition according to this embodiment include a cationic dispersant, an anionic dispersant, a nonionic dispersant, an amphoteric surfactant, and a polymer dispersant. These dispersants can be used alone or in admixture of two or more.
- cationic dispersants examples include polyamine dispersants.
- anionic dispersant examples include carboxylic acid, phosphate ester, sulfate ester, and sulfonate ester dispersants.
- Nonionic dispersants include polyethylene glycol dispersants.
- amphoteric surfactants include surfactants having a carboxylic acid and a quaternary ammonium salt.
- polymer dispersant examples include polyvinyl pyrrolidone and polyvinyl alcohol.
- the content of the inorganic powder in the paste composition according to this embodiment is preferably 20 to 70% by weight, more preferably 40 to 60% by weight, based on the total amount of the paste composition according to this embodiment. Further, the content of the dispersant is preferably 0.01 to 5% by weight, more preferably 0.1 to 3% by weight, based on the total amount of the paste composition according to the present embodiment.
- the paste composition according to the present embodiment is conventionally known as long as the object of the present invention is not impaired. It may contain plasticizers, wetting agents, antifoaming agents and the like.
- the paste composition according to the present embodiment can ensure an appropriate viscosity and good coatability.
- the composition comprising the (meth) acrylic (co) polymer of the present invention, a nickel filler having an average particle diameter of 200 nm, and dihydroterpineol (weight blend ratio: 5/100/70) is a rotating / revolving mixer.
- the paste composition obtained by further kneading with three rolls has a viscosity at 25 ° C. in the range of 0.5 to 30 Pa ⁇ s, preferably in the range of 3 to 20 Pa ⁇ s.
- the paste composition according to the present embodiment is used for application using, for example, screen printing, die coating printing, doctor blade printing, roll coating printing, offset printing, gravure printing, flexographic printing, inkjet printing, dispensing printing, and the like. Among these, it is preferably used for screen printing.
- paste composition according to the present embodiment examples include internal electrode paste, terminal electrode paste, internal electrode paste, touch panel screen paste, and PDP manufacturing used in the manufacture of LTCC.
- the MLCC can be produced using the paste composition according to the present embodiment, for example, using the following method.
- Ethanol and a PVB binder are added to the ceramic raw material and mixed and dispersed to prepare a ceramic slurry. Then, this ceramic slurry is formed into a sheet shape to obtain a ceramic green sheet. Then, an internal electrode forming Ni paste is printed on the ceramic green sheet to form an internal electrode pattern (conductive paste layer).
- this multilayer body is heat-treated in an N 2 atmosphere to obtain a ceramic multilayer body (multilayer ceramic element).
- MLCC is obtained by applying a Cu paste to both end faces of the ceramic laminate obtained after firing and firing in an N 2 atmosphere to form terminal electrodes electrically connected to the internal electrodes.
- the coalescence both coating property and baking property are excellent.
- a (meth) acrylic (co) polymer containing the structural unit (A) in a proportion of less than 20 mol% or a (meth) acrylic (co) polymer not containing the structural unit (A) is used as the paste composition.
- the (meth) acrylic (co) polymer has strong intramolecular and intermolecular entanglement, poor thixotropic properties (viscosity characteristics), and strong stringiness. It is difficult to express workability.
- the (meth) acrylic (co) polymer containing the structural unit (A) in an amount of 20 to 100 mol% contains (meth) acrylic. Since the entanglement between molecules in the system (co) polymer can be reduced, the thixotropic property (viscosity characteristics) can be increased, so that it has an appropriate viscosity and has low stringiness. Can increase the sex.
- the paste composition according to the present embodiment includes a (meth) acrylic (co) polymer containing 20 to 100 mol% of the structural unit (A), and thus has excellent fireability.
- the manufacturing method of the sintered body which concerns on another one Embodiment of this invention is the process of apply
- the paste composition according to the above embodiment is applied using, for example, screen printing, die coating printing, doctor blade printing, roll coating printing, offset printing, gravure printing, flexographic printing, inkjet printing, dispensing printing, and the like. It is applied to a base material by a casting method for processing into a sheet shape, and after processing into a predetermined shape, the paste composition is dried, and then the base material containing the paste composition is fired. A sintered body having the following shape can be obtained.
- the substrate to which the paste composition according to the above-described embodiment is applied include members such as metals, ceramics, plastics, and semiconductors.
- the paste composition which concerns on the said embodiment can be used suitably for screen printing at the point which has moderate viscosity and is excellent in coating property and baking property.
- Fired body The method for producing a fired body according to another embodiment of the present invention can be obtained by the method for producing a fired body according to the above embodiment.
- the obtained polymer 1 had a weight average molecular weight of 50,000, the proportion of the structural unit (A) was 100 mol%, and the SP value was 9.3 as a calculated value.
- the proportions of the structural units (A), (B) and (C) are calculated from the charging ratios of the monomer (a), the monomer (b) and the monomer (c). Calculated value.
- Production Example 2 (Preparation of Polymer 2) The same operation as in Production Example 1 except that 100 parts by weight of 2HBMA used in Production Example 1 was changed to 30 parts by weight of isobornyl methacrylate (IBXMA), 65 parts by weight of HBMA, and 5 parts by weight of methacrylic acid (MAA). Polymer 2 was prepared. The obtained polymer 2 has a weight average molecular weight of 50,000, the proportion of the structural unit (A) is 68 mol%, the proportion of the structural unit (B) is 22 mol%, the proportion of the structural unit (C) is 10 mol%, SP The calculated value was 9.1.
- IBXMA isobornyl methacrylate
- MAA methacrylic acid
- Production Example 3 (Preparation of Polymer 3) Polymer 3 was prepared in the same manner as in Production Example 1 except that 100 parts by weight of 2HBMA of Production Example 1 was changed to 50 parts by weight of cyclohexyl methacrylate (CHMA) and 50 parts by weight of cyclohexanedimethanol monoacrylate (CHDMMA). did.
- the obtained polymer 3 had a weight average molecular weight of 50,000, the proportion of the structural unit (A) was 46 mol%, the proportion of the structural unit (B) was 54 mol%, and the SP value was 8.8 as a calculated value.
- Production Example 4 (Preparation of Polymer 4) Polymer 4 was prepared in the same manner as in Production Example 1 except that 0.4 part by weight of AIBN in Production Example 1 was changed to 0.1 part by weight. The obtained polymer 4 had a weight average molecular weight of 150,000, the proportion of the structural unit (A) was 100 mol%, and the SP value was 9.3 as a calculated value.
- Production Example 5 (Preparation of polymer 5) Polymer 5 was prepared in the same manner as in Production Example 1 except that 100 parts by weight of 2HBMA in Production Example 1 were changed to 60 parts by weight of 2HBMA, 30 parts by weight of CHMA, and 10 parts by weight of HEMA.
- the obtained polymer 5 has a weight average molecular weight of 50,000, the proportion of the structural unit (A) is 60 mol%, the proportion of the structural unit (B) is 28 mol%, the proportion of the structural unit (C) is 12 mol%, SP The calculated value was 9.1.
- Production Example 6 (Preparation of polymer 6) 100 parts by weight of 2HBMA of Production Example 1 above, 65 parts by weight of HBMA, 25 parts by weight of isobutyl methacrylate (iBMA), 2-methacryloyloxyethyl hexahydrophthalic acid (manufactured by Kyoeisha Chemical Co., Ltd., light ester HO-HH) 10 A polymer 6 was prepared in the same manner as in Production Example 1 except that the amount was parts by weight. The obtained polymer 6 had a weight average molecular weight of 50,000, the proportion of the structural unit (A) was 72 mol%, the proportion of (C) was 28 mol%, and the SP value was 9.1 as a calculated value.
- iBMA isobutyl methacrylate
- 2-methacryloyloxyethyl hexahydrophthalic acid manufactured by Kyoeisha Chemical Co., Ltd., light ester HO-HH
- Production Example 7 (Preparation of polymer 7) 100 parts by weight of 2HBMA of Production Example 1 was added to 60 parts by weight of 4-methacryloyloxy-2,2,6,6-tetramethylpiperidine (FA-712HM manufactured by Hitachi Chemical Co., Ltd.), 20 parts by weight of CHMA, and HEMA 20 A polymer 7 was prepared in the same manner as in Production Example 1 except that the amount was in parts by weight.
- the obtained polymer 7 has a weight average molecular weight of 50,000, the proportion of the structural unit (A) is 49 mol%, the proportion of the structural unit (B) is 22 mol%, the proportion of the structural unit (C) is 29 mol%, SP The calculated value was 9.3.
- Production Example 8 (Preparation of polymer 8) The same as in Production Example 1 except that 100 parts by weight of 2HBMA in Production Example 1 was changed to 60 parts by weight of 2,2-dimethyl-3-hydroxypropyl methacrylate (DMHPMA), 20 parts by weight of CHMA, and 20 parts by weight of HEMA. In operation, polymer 7 was prepared. The obtained polymer 8 has a weight average molecular weight of 50,000, the proportion of the structural unit (A) is 56 mol%, the proportion of the structural unit (B) is 19 mol%, the proportion of the structural unit (C) is 25 mol%, SP The calculated value was 9.4.
- DMHPMA 2,2-dimethyl-3-hydroxypropyl methacrylate
- Production Example 9 (Preparation of polymer 9) Manufactured except that 100 parts by weight of 2HBMA in Polymer Production Example 1 is changed to 60 parts by weight of [(3,4-epoxycyclohexane) -1-yl] methyl (ECMA), 20 parts by weight of CHMA, and 20 parts by weight of HEMA.
- polymer 9 was prepared.
- the obtained polymer 9 has a weight average molecular weight of 50,000, the proportion of the structural unit (A) is 53 mol%, the proportion of the structural unit (B) is 21 mol%, the proportion of the structural unit (C) is 26 mol%, SP The calculated value was 9.1.
- the obtained polymer solution was dropped into 2000 parts by weight of n-Hex over 30 minutes to produce a polymer precipitate.
- the polymer precipitate was separated by filtration with a 200 mesh wire net and dried at 105 ° C. for 8 hours to prepare polymer 10.
- the obtained polymer 10 had a weight average molecular weight of 50,000, a proportion of the structural unit (A) of 74 mol%, a proportion of the structural unit (B) of 26 mol%, and a calculated SP value of 8.5.
- Production Example 13 (Preparation of polymer 13) Polymer 13 was prepared in the same manner as in Production Example 1 except that 100 parts by weight of 2HBMA in Production Example 1 were changed to 70 parts by weight of iBMA and 30 parts by weight of HEMA. The obtained polymer 13 had a weight average molecular weight of 50,000, the proportion of the structural unit (C) was 100 mol%, and the SP value was 9.3 as a calculated value.
- Production Example 14 (Preparation of polymer 14) Polymer 14 was prepared in the same manner as in Production Example 1 except that 100 parts by weight of 2HBMA in Production Example 1 were changed to 90 parts by weight of iBMA and 10 parts by weight of MAA. The obtained polymer 14 had a weight average molecular weight of 50,000, the proportion of the structural unit (C) was 100 mol%, and the SP value was 9.1 as a calculated value.
- Production Example 15 (Preparation of polymer 15) Polymer 15 was prepared in the same manner as in Production Example 1 except that 100 parts by weight of 2HBMA of Production Example 1 were changed to 60 parts by weight of tert-butyl methacrylate (tBMA) and 40 parts by weight of HEMA. The obtained polymer 15 had a weight average molecular weight of 50,000, the proportion of the structural unit (B) was 58 mol%, the proportion of the structural unit (C) was 42 mol%, and the SP value was 9.2 as a calculated value.
- tBMA tert-butyl methacrylate
- Production Example 16 (Preparation of polymer 16) Polymer 16 was prepared in the same manner as in Production Example 1 except that 100 parts by weight of 2HBMA in Production Example 1 were changed to 70 parts by weight of CHMA and 30 parts by weight of HEMA. The obtained polymer 16 had a weight average molecular weight of 50,000, the proportion of the structural unit (B) was 64 mol%, the proportion of the structural unit (C) was 36 mol%, and the SP value was 9.1 as a calculated value. Table 1 shows the composition of each polymer.
- paste composition A composition (compounding ratio: 8/100/70) composed of polymers 1 to 16, Ni filler (average particle size 200 nm), and terpineol (SP value: 9.2) prepared above was rotated and rotated. After kneading with a revolutionary mixer (trade name “Awatori Nertaro”, manufactured by Shinky Co., Ltd.), the mixture was further kneaded with three rolls to obtain a paste composition.
- a revolutionary mixer trade name “Awatori Nertaro”, manufactured by Shinky Co., Ltd.
- SP value was calculated from Okitsu's ⁇ F constant (Toshinao Okitsu, “Adhesion”, Vol. 40, No. 8, page 342 (1996)).
- Ra When Ra is 0.15 or less: ⁇ When Ra exceeds 0.15 and is 0.2 or less: ⁇ When Ra exceeds 0.2 and is 0.25 or less: ⁇ When Ra is larger than 0.25: ⁇
- Viscosity The viscosity of the paste composition was measured at 25 ° C. with an E-type viscometer, and the viscosity was evaluated according to the following criteria.
- Dispersion Stability Visually evaluated whether the prepared paste composition was phase-separated, and the dispersion stability was evaluated according to the following criteria.
- the paste compositions of Examples 1 to 10 contain 20 to 100 mol% (more specifically 70 to 100 mol%) of the structural unit (A) represented by the above general formula (1).
- the (meth) acrylic (co) polymer By including the (meth) acrylic (co) polymer to be contained, it has an appropriate viscosity and good dispersion stability, so that it can be understood that the coating property is excellent, and that the baking property and the printing property are excellent.
- the paste compositions of Examples 1 to 10 are more sinterable than the case where ethyl cellulose or polyvinyl butyral is used in place of the (meth) acrylic (co) polymer (Comparative Examples 1 and 2). I can understand that it is excellent.
- the proportion of the structural unit (A) in the (meth) acrylic (co) polymer is less than 70 mol% (more specifically less than 20 mol%). Therefore, it can be understood that the printability is inferior. That is, the paste compositions of Comparative Examples 3 to 6 have a low proportion of the structural unit (A), so that the desired paste viscosity does not appear, and there is an interaction between the acrylic ester group and other molecules. Prone to occur. As a result, the entanglement between the molecules becomes strong, so that the stringing property is deteriorated and the printability is deteriorated.
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Abstract
Description
1.本発明の一態様に係るペースト組成物は、下記一般式(1)で表される構成単位(A)を20~100モル%含有する(メタ)アクリル系(共)重合体を含むことを特徴とする。
(式中、R1は水素原子またはメチル基を表し、R2はX<13.5Å、Y>6.15Åの径を有し、体積が80Å3より大きい基(ここで、Xは長辺方向の長さを表し、Yは短辺方向の長さを表す。)であって、かつ、水素結合性を有する官能基、アルコキシ基を有する基、またはアリールオキシ基を有する基であり、nは5~2000の数を表す。)
本発明において、「水素結合性を有する官能基」とは、水素結合を形成する性質を有する基のことをいう。また、本発明において「(メタ)アクリル」とは、「アクリルまたはメタクリル」を意味し、「(共)重合体」とは、重合体または共重合体を意味する。また、「(メタ)アクリル系共重合体」とは、共重合体中に単量体単位として、(メタ)アクリル酸、(メタ)アクリル酸の塩、および(メタ)アクリル酸エステルから選ばれる少なくとも1種が50モル%以上含まれている共重合体をいう。
2.上記1に記載のペースト組成物において、前記(メタ)アクリル系(共)重合体は、下記一般式(2)で表される単量体(a)を20~100モル%含有する単量体成分の系(共)重合体であることができる。
3.上記1に記載のペースト組成物において、前記(メタ)アクリル系共重合体が、下記一般式(3)で表される構成単位(B)をさらに含むことができる。
4.上記2に記載のペースト組成物において、前記単量体成分中における前記単量体(a)および下記一般式(4)で表される単量体(b)の総量が70~100モル%であることができる。
5.上記1ないし4のいずれか1項に記載のペースト組成物において、前記水素結合性を有する官能基は、水酸基、カルボキシル基、アミノ基、アミド基、アセトアセトキシ基、酸無水物基、スルホン酸基、リン酸基、チオール基および複素環基から選ばれる少なくとも1種であることができる。
6.上記1ないし5のいずれかに記載のペースト組成物において、前記(メタ)アクリル系(共)重合体のSP値が7~10であることができる。
7.上記1ないし6のいずれかに記載のペースト組成物において、前記(メタ)アクリル系(共)重合体の重量平均分子量が1,000~200,000であることができる。
8.上記1ないし7のいずれかに記載のペースト組成物において、溶剤と、無機粉末または分散剤とをさらに含むことができる。
9.上記8に記載のペースト組成物において、前記(メタ)アクリル系(共)重合体および前記溶剤が下記式(5)の関係を満たすことができる。
10.上記1ないし9のいずれかに記載のペースト組成物は、積層セラミックコンデンサーのグリーンシートの製造のために使用することができる。
11.本発明の別の一態様に係る焼成体の製造方法は、上記1ないし10のいずれかに記載のペースト組成物を基材に塗布する工程と、塗布された前記ペースト組成物を乾燥させる工程と、乾燥させた前記ペースト組成物を含む基材を焼成する工程と、を含む。
12.本発明の他の一態様に係る焼成体は、上記11に記載の焼成体の製造方法によって得られる。
本発明の一実施形態に係るペースト組成物は、下記一般式(1)で表される構成単位(A)を20~100モル%含有する(メタ)アクリル系(共)重合体を含む。
1.1.1.構造単位(A)
本実施形態に係るペースト組成物において、前記(メタ)アクリル系(共)重合体は上記一般式(1)で表される構造単位(A)を20~100モル%(好ましくは30~90モル%、より好ましくは40~80モル%)有する。上記一般式(1)において、R2は、X<13.5Å、Y>6.15Åの径を有し、体積が80Å3より大きいため、立体障害が大きな基である。ここで、R2のX、Y、および体積は、MOPAC PM3のEF法によって計算された値である。ここで、Xにおける「長辺方向の長さ」とは、上記式(1)におけるR2と隣接して結合する酸素原子に結合するR2中の炭素原子から、該炭素原子から最も遠い位置にあるR2中の原子までの距離を意味し、Yにおける「短辺方向の長さ」とは、長辺方向と交差する方向において最も長い部分の長さをいう。
前記(メタ)アクリル系(共)重合体に含まれる、前記水素結合性を有する官能基は、水素結合の形成により、適度な粘性の発現に寄与することができる。前記(メタ)アクリル系(共)重合体に含まれる、前記水素結合性を有する官能基は例えば、水酸基、カルボキシル基、アミノ基、アミド基、アセトアセトキシ基、酸無水物基、スルホン酸基、リン酸基、チオール基、および複素環基から選ばれる少なくとも1種であることができる。これらの官能基の中では、水酸基、カルボキシル基、アミノ基、酸無水物基、オキシラン基、およびオキソラン基が好ましく、水酸基、アミノ基、酸無水物基およびオキシラン基がさらに好ましい。
また、アルコキシ基を有する基に含まれるアルコキシ基としては、メトキシ基、エトキシ基、n-プロポキシ基、n-ブトキシ基等の直鎖状アルコキシ基、イソプロポキシ基、エチルヘキシロキシ基等の分岐状アルキル基、及びシクロヘキシロキシ基などの環状アルコキシ基が挙げられ、分岐状アルコキシ基および環状アルコキシ基が好ましい。さらに、アリールオキシ基を有する基に含まれるアリールオキシ基としては、置換されてもよいフェノキシ基およびナフトキシ基が挙げられる。
前記(メタ)アクリル系(共)重合体は、下記一般式(3)で表される構成単位(B)をさらに含むことができる。
前記(メタ)アクリル系(共)重合体中における前記構成単位(A)および前記構成単位(B)の総量は70~100モル%であり、80~90モル%であることが好ましい。
上記一般式(3)において、R4のX、Yおよび体積は、上記一般式(1)におけるR2と同様に、MOPAC PM3のEF法によって計算された値である。ここで、Xにおける「長辺方向の長さ」とは、上記式(3)におけるR4と隣接して結合する酸素原子に結合するR4中の炭素原子から、該炭素原子から最も遠い位置にあるR4中の原子までの距離を意味し、Yにおける「短辺方向の長さ」とは、長辺方向と交差する方向において最も長い部分の長さをいう。
上記一般式(4)で表される単量体(b)におけるR4は、上記一般式(2)で表される単量体(a)中のR2で表される基の大きさと同じ大きさの基(立体障害が大きい基)を有するが、該R4は前記R2と異なり、水素結合性を有する官能基、アルコキシ基およびアリールオキシ基のいずれも有さない基である。前記単量体(b)としては、例えば、tert-ブチル(メタ)アクリレート、シクロヘキシル(メタ)アクリレート、イソボルニル(メタ)アクリレート、ジシクロペンタニル(メタ)アクリレート、アダマンチル(メタ)アクリレート等が挙げられ、このうち、tert-ブチル(メタ)アクリレート、シクロヘキシル(メタ)アクリレート、イソボルニル(メタ)アクリレート等の(メタ)アクリル酸エステルが好ましい。これらの単量体(b)はそれぞれ単独で、または、2種以上混合して用いることができる。
前記(メタ)アクリル系(共)重合体はさらに、他の構成単位(C)を有していてもよい。前記(メタ)アクリル系(共)重合体における他の構成単位(C)の割合は例えば、0~30モル%であり、0~20モル%であることが好ましい。
前記(メタ)アクリル系(共)重合体の含有量は、適度な粘性ならびに良好な塗工性および焼成性を確保する観点から、本実施形態に係るペースト組成物の総量の1~20%であることが好ましく、5~10%であることがより好ましい。
前記(メタ)アクリル系(共)重合体は、適度な粘性を有する観点から、SP値が7~10であることが好ましく、SP値が8~10であることがより好ましい。前記(メタ)アクリル系(共)重合体のSP値は、(共)重合体の極性を示す指標であり、ペースト作成にて使用される溶剤への溶解性を確認するための目安である。本発明において、前記(メタ)アクリル系(共)重合体のSP値および後述する溶剤のSP値は、OkitsuのΔFの定数(沖津俊直著、「接着」、第40巻8号、342頁(1996年))より算出することができる。
前記(メタ)アクリル系(共)重合体は、良好な塗工性を確保する観点から、重量平均分子量が1,000~200,000であることが好ましく、10,000~100,000であることがより好ましい。前記(メタ)アクリル系(共)重合体の重量平均分子量が1,000未満であると、所望のペースト粘度が得られず、一方、前記(メタ)アクリル系(共)重合体の重量平均分子量が200,000を超えると、糸引き性が高くなり、十分な塗工性が得られない。なお、本発明において、分子量を測定する方法は、後述する実施例に記載の方法を用いる。
前記(メタ)アクリル重合体の重合方法は、特に制限されるものではないが、通常は溶液重合を用いることが好ましい。溶液重合は、一般に、重合槽内に所定の有機溶媒、単量体、重合開始剤を仕込み、窒素気流中、適当な重合温度で、撹拌しながら数時間加熱反応させることにより行われる。この場合、有機溶媒、単量体、重合開始剤および/または連鎖移動剤の少なくとも一部を逐次添加してもよい。
本実施形態に係るペースト組成物は、前記(メタ)アクリル系(共)重合体に加えて、溶剤と、無機粉末または分散剤と、をさらに含むことができる。
本実施形態に係るペースト組成物に使用可能な溶剤としては、有機溶剤が挙げられ、例えば、前記(メタ)アクリル系(共)重合体と前記溶剤との間で下記式(5)の関係を満たす溶剤が好ましい。前記(メタ)アクリル系(共)重合体および前記溶剤が下記式(5)の関係を満たす溶剤を用いることにより、前記(メタ)アクリル系(共)重合体と前記溶剤との相溶性が高まり、ペースト組成物を作成した際の安定性が増す。
本実施形態に係るペースト組成物中における溶剤の含有量は、本実施形態に係るペースト組成物の総量の10~60%であることが好ましく、30~50%であることがより好ましい。
本実施形態に係るペースト組成物に使用可能な無機粉末としては、例えば、金属粉末、金属酸化物粉末、ガラス粉末、顔料粉末、蛍光体粉末、セラミック粉末が挙げられる。これらの無機粉末はそれぞれ単独で、または、2種以上混合して用いることができる。
ガラス粉末としては、例えば、酸化ビスマスガラス、ケイ酸塩ガラス、鉛ガラス、亜鉛ガラス、ボロンガラスや各種ケイ素酸化物のガラス粉末等があげられる。
本実施形態に係るペースト組成物には、上述した(メタ)アクリル系(共)重合体、溶剤、無機粉末、分散剤のほかに、本発明の目的を損なわない範囲で従来知られている可塑剤、湿潤剤、消泡剤等を含有してもよい。
本発明の(メタ)アクリル系(共)重合体を用いることにより、本実施形態に係るペースト組成物は、適度な粘性および良好な塗工性を確保できる。具体的には、本発明の(メタ)アクリル系(共)重合体、平均粒子径200nmのニッケルフィラー、およびジヒドロターピネオールからなる組成物(重量配合比:5/100/70)を自転・公転ミキサーで混練した後、さらに3本ロールで混練して得られるペースト組成物が、25℃における粘度が0.5~30Pa・sの範囲内、好ましくは3~20Pa・sの範囲内である。
本実施形態に係るペースト組成物は、例えば、スクリーン印刷、ダイコート印刷、ドクターブレード印刷、ロールコート印刷、オフセット印刷、グラビア印刷、フレキソ印刷、インクジェット印刷、ディスペンス印刷等を用いて塗布するために使用することができ、中でも、スクリーン印刷に好適に用いられる。
本実施形態に係るペースト組成物によれば、水素結合性を有する官能基を有し、かつ、前記構成単位(A)を20~100モル%含有する(メタ)アクリル系(共)重合体を含むことにより、塗工性および焼成性の双方に優れている。
本発明の別の一実施形態に係る焼成体の製造方法は、上記実施形態に係るペースト組成物を基材に塗布する工程と、塗布された前記ペースト組成物を乾燥させる工程と、乾燥させた前記ペースト組成物を含む基材を焼成する工程と、を含む。
本発明の他の一実施形態に係る焼成体の製造方法は、上記実施形態に係る焼成体の製造方法によって得ることができる。
以下、本発明を下記実施例に基づいて説明するが、本発明は実施例に限定されない。
4.1.(メタ)アクリル共重合体の調製
4.1.1.製造例1(ポリマー1の調製)
表1に示す組成を有する単量体成分を用いて、以下の方法にて(メタ)アクリル系(共)重合体であるポリマー1を調製した。まず、攪拌装置、窒素ガス導入管、温度計および還流冷却管を備えたフラスコに、メチルエチルケトン(MEK)100重量部を仕込み、フラスコ内に窒素ガスを導入しながら30分攪拌して窒素置換を行った後、フラスコの内容物を80℃まで昇温した。ついで、フラスコ内の内容物を80℃に維持しながら、2-ヒドロキシイソブチルメタクリレート(2HBMA)100重量部を2時間かけて滴下、および滴下開始と同時にアゾビスイソブチロニトリル(AIBN)0.4重量部を1時間毎に計5回添加した。滴下開始から8時間後、室温まで冷却した。得られたポリマー溶液を、n-ヘキサン(n-Hex)2000重量部中へ30分かけて滴下を行い、ポリマー析出物を生成させた。ポリマー析出物については、200メッシュ金網で濾別し、105℃で8時間乾燥することで、ポリマー1を調製した。得られたポリマー1は重量平均分子量が5万、構成単位(A)の割合は100モル%、SP値は計算値で9.3であった。なお、本実施例において、構成単位(A)、(B)および(C)の割合については、単量体(a)、単量体(b)および単量体(c)の仕込み比から算出した計算値である。
上記製造例1で使用した2HBMA 100重量部を、イソボルニルメタクリレート(IBXMA)30重量部、2HBMA 65重量部、メタクリル酸(MAA) 5重量部とする以外は、上記製造例1と同様の操作で、ポリマー2を調製した。得られたポリマー2は重量平均分子量が5万、構成単位(A)の割合は68モル%、構成単位(B)の割合は22モル%、構成単位(C)の割合は10モル%、SP値は計算値で9.1であった。
上記製造例1の2HBMA 100重量部を、シクロヘキシルメタクリレート(CHMA)50重量部、シクロヘキサンジメタノールモノアクリレート(CHDMMA)50重量部とする以外は、上記製造例1と同様の操作で、ポリマー3を調製した。得られたポリマー3は重量平均分子量が5万、構成単位(A)の割合は46モル%、構成単位(B)の割合は54モル%、SP値は計算値で8.8であった。
上記製造例1のAIBN 0.4重量部を0.1重量部とする以外は、上記製造例1と同様の操作で、ポリマー4を調製した。得られたポリマー4は重量平均分子量が15万、構成単位(A)の割合は100モル%、SP値は計算値で9.3であった。
上記製造例1の2HBMA 100重量部を、2HBMA 60重量部、CHMA30重量部、HEMA 10重量部とする以外は、上記製造例1と同様の操作で、ポリマー5を調製した。得られたポリマー5は重量平均分子量が5万、構成単位(A)の割合は60モル%、構成単位(B)の割合は28モル%、構成単位(C)の割合は12モル%、SP値は計算値で9.1であった。
上記製造例1の2HBMA 100重量部を、HBMA 65重量部、イソブチルメタクリレート(iBMA)25重量部、2-メタクリロイロキシエチルヘキサヒドロフタル酸(共栄社化学(株)製、ライトエステルHO-HH)10重量部とする以外は、製造例1と同様の操作で、ポリマー6を調製した。得られたポリマー6は重量平均分子量が5万、構成単位(A)の割合は72モル%、(C)の割合は28モル%、SP値は計算値で9.1であった。
上記製造例1の2HBMA 100重量部を、4-メタクリロイルオキシ-2,2,6,6-テトラメチルピペリジン(日立化成工業(株)製 FA-712HM) 60重量部、CHMA 20重量部、HEMA 20重量部とする以外は、上記製造例1と同様の操作で、ポリマー7を調製した。得られたポリマー7は重量平均分子量が5万、構成単位(A)の割合は49モル%、構成単位(B)の割合は22モル%、構成単位(C)の割合は29モル%、SP値は計算値で9.3であった。
上記製造例1の2HBMA 100重量部を、2,2-ジメチル-3-ヒドロキシプロピルメタクリレート(DMHPMA)60重量部、CHMA 20重量部、HEMA 20重量部とする以外は、上記製造例1と同様の操作で、ポリマー7を調製した。得られたポリマー8は重量平均分子量が5万、構成単位(A)の割合は56モル%、構成単位(B)の割合は19モル%、構成単位(C)の割合は25モル%、SP値は計算値で9.4であった。
ポリマー製造例1の2HBMA 100重量部を、メタクリル酸[(3,4-エポキシシクロヘキサン)-1-イル]メチル(ECMA) 60重量部、CHMA 20重量部、HEMA 20重量部とする以外は、製造例1と同様の操作で、ポリマー9を調製した。得られたポリマー9は重量平均分子量が5万、構成単位(A)の割合は53モル%、構成単位(B)の割合は21モル%、構成単位(C)の割合は26モル%、SP値は計算値で9.1であった。
攪拌装置、窒素ガス導入管、温度計および還流冷却管を備えたフラスコに、MEK 100重量部を仕込み、フラスコ内に窒素ガスを導入しながら30分攪拌して窒素置換を行った後、フラスコの内容物を80℃まで昇温した。ついで、フラスコ内の内容物を80℃に維持しながら、2HBMA 60重量部、IBXMA 31重量部、ジシクロペンテニルアクリレート(日立化成工業(株)製FA-511AS) 6重量部、を2時間かけて滴下、および滴下開始と同時にAIBN 0.4重量部を1時間毎に計5回添加した。滴下開始から8時間後、無水マレイン酸3重量部と、t-ブチルパーオキシ-2-エチルヘキサノエート(日油(株)製パーブチルO)0.2重量部を添加し、さらに80℃で8時間後室温まで冷却した。得られたポリマー溶液を、n-Hex 2000重量部中へ30分かけて滴下を行い、ポリマー析出物を生成させた。ポリマー析出物については、200メッシュ金網で濾別し、105℃にて8時間で乾燥することで、ポリマー10を調製した。得られたポリマー10は重量平均分子量が5万、構成単位(A)の割合は74モル%、構成単位(B)の割合は26モル%、SP値は計算値で8.5であった。
エチルセルロース(日進化成(株)製 エトセル グレード45(商品名))をポリマー11とした。
ポリビニルブチラール(積水化学工業(株)製 エスレック BH-3)をポリマー12とした。
上記製造例1の2HBMA 100重量部を、iBMA 70重量部、HEMA 30重量部とする以外は、上記製造例1と同様の操作で、ポリマー13を調製した。得られたポリマー13は重量平均分子量が5万、構成単位(C)の割合は100モル%、SP値は計算値で9.3であった。
上記製造例1の2HBMA 100重量部を、iBMA 90重量部、MAA 10重量部とする以外は、製造例1と同様の操作で、ポリマー14を調製した。得られたポリマー14は重量平均分子量が5万、構成単位(C)の割合は100モル%、SP値は計算値で9.1であった。
上記製造例1の2HBMA 100重量部を、tert-ブチルメタクリレート(tBMA)60重量部、HEMA 40重量部とする以外は、上記製造例1と同様の操作で、ポリマー15を調製した。得られたポリマー15は重量平均分子量が5万、構成単位(B)の割合は58モル%、構成単位(C)の割合は42モル%、SP値は計算値で9.2であった。
上記製造例1の2HBMA 100重量部を、CHMA 70重量部、HEMA 30重量部とする以外は、製造例1と同様の操作で、ポリマー16を調製した。得られたポリマー16は重量平均分子量が5万、構成単位(B)の割合は64モル%、構成単位(C)の割合は36モル%、SP値は計算値で9.1であった。
表1に各ポリマーの組成を示す。
CHDMMA:シクロヘキサンジメタノールモノアクリレート
HO-HH:2-メタクリロイロキシエチルヘキサヒドロフタル酸
FA-712HM:4-メタクリロイルオキシ-2,2,6,6-テトラメチルピペリジン
DMHPMA:2,2-ジメチル-3-ヒドロキシプロピルメタクリレート
ECMA:メタクリル酸[(3,4-エポキシシクロヘキサン)-1-イル]メチル
FA-511AS:ジシクロペンテニルアクリレート
CHMA:シクロヘキシルメタクリレート
tBMA:tert-ブチルメタクリレート
IBXMA:イソボルニルメタクリレート
HEMA:2-ヒドロキシエチルメタクリレート
MAA:メタクリル酸
iBMA:イソブチルメタクリレート
製造例1~16において用いられた単量体を構成する(メタ)アクリル酸由来のCOOR基のR(単量体(a)のR2、単量体(b)のR4等)をMOPAC PM3のEF法によって計算したX、Yおよび体積を表2に示す。
上記で調製したポリマー1~16、Niフィラー(平均粒径200nm)、およびターピネオール(SP値:9.2)からなる組成物(配合比:8/100/70)を自転・公転ミキサー(商品名「あわとり練太郎」、株式会社シンキー製)で混練した後、さらに3本ロールで混練して、ペースト組成物を得た。
4.3.1.SP値
SP値は、OkitsuのΔFの定数(沖津俊直著、「接着」、第40巻8号、342頁(1996年))より算出した。
分子量は、ゲルパーミッションクロマトグラフィーによる分析を行い、ポリスチレン換算による重量平均分子量より算出した。
装置:GPC-8220(東ソー(株)製)
カラム:G7000HXL/7.8mmID×1本 + GMHXL/7.8mmID×2本 + G2500HXL/7.8mmID×1本
媒体:テトラヒドロフラン(略称THF)
流速:1.0mL/min
濃度:1.5mg/ml
注入量:300μL
カラム温度:40℃
ペースト組成物をガラス板に640メッシュ、ギャップ0.1mm、速度30cm/秒でスクリーン塗工、乾燥したものの表面粗さ(Ra)を表面粗さ計で測定し、該表面粗さの値を指標として以下の基準にしたがって印刷性を評価した。
Raが0.15を超えかつ0.2以下である場合:○
Raが0.2を超えかつ0.25以下である場合:△
Raが0.25より大きい場合:×
ペースト組成物をE型粘度計によって25℃にて粘度の測定を行い、以下の基準にしたがって粘度を評価した。
粘度が1.5Pa・sを超え3Pa・s以下である場合:○
粘度が0.5Pa・s以上1.5Pa・s以下である場合:△
粘度が0.5Pa・s未満である場合:×
調製されたペースト組成物が相分離するか否かを目視評価し、以下の基準にしたがって分散安定性を評価した。
ペースト組成物が1~3日で分離した場合:△
ペースト組成物が1日以内で分離した場合:×
窒素雰囲気中700℃で1時間の焼成(TG-DTA)を行った後における残炭の有無を以下の基準にしたがって目視にて確認して、ポリマーの焼成性を評価した。
残炭が微量有る場合:△
残炭が無視できない量有る場合:×
評価結果を表3に示す。
Claims (12)
- 前記水素結合性を有する官能基は、水酸基、カルボキシル基、アミノ基、アミド基、アセトアセトキシ基、酸無水物基、スルホン酸基、リン酸基、チオール基および複素環基から選ばれる少なくとも1種である、請求項1ないし4のいずれか1項に記載のペースト組成物。
- 前記(メタ)アクリル系(共)重合体のSP値が7~10である、請求項1ないし5のいずれか1項に記載のペースト組成物。
- 前記(メタ)アクリル系(共)重合体の重量平均分子量が1,000~200,000である、請求項1ないし6のいずれか1項に記載のペースト組成物。
- 溶剤と、無機粉末または分散剤とをさらに含む、請求項1ないし7のいずれか1項に記載のペースト組成物。
- 前記(メタ)アクリル系(共)重合体および前記溶剤が下記式(5)の関係を満たす、請求項8に記載のペースト組成物。
|(前記(メタ)アクリル系(共)重合体のSP値)-(前記溶剤のSP値)|≦2
・・・(5) - 積層セラミックコンデンサーのグリーンシートの製造のために使用される、請求項1ないし9のいずれか1項に記載のペースト組成物。
- 請求項1ないし10のいずれか1項に記載のペースト組成物を基材に塗布する工程と、
塗布された前記ペースト組成物を乾燥させる工程と、
乾燥させた前記ペースト組成物を含む基材を焼成する工程と、
を含む、焼成体の製造方法。 - 請求項11に記載の焼成体の製造方法によって得られる焼成体。
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JP7133495B2 (ja) | 2019-02-13 | 2022-09-08 | サカタインクス株式会社 | オフセット印刷用インキ組成物、及び枚葉オフセット印刷物の製造方法 |
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US20150315305A1 (en) | 2015-11-05 |
JP2018104708A (ja) | 2018-07-05 |
CN104822766A (zh) | 2015-08-05 |
JP6667560B2 (ja) | 2020-03-18 |
KR102057919B1 (ko) | 2019-12-20 |
EP2927277A1 (en) | 2015-10-07 |
TW201434927A (zh) | 2014-09-16 |
CN104822766B (zh) | 2017-08-04 |
EP2927277A4 (en) | 2016-08-03 |
KR20150091313A (ko) | 2015-08-10 |
JPWO2014084273A1 (ja) | 2017-01-05 |
TWI604010B (zh) | 2017-11-01 |
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