WO2023048025A1 - Resin composition, prepreg, metal foil-clad laminated sheet, composite resin sheet, printed wiring board, and semiconductor device - Google Patents
Resin composition, prepreg, metal foil-clad laminated sheet, composite resin sheet, printed wiring board, and semiconductor device Download PDFInfo
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- WO2023048025A1 WO2023048025A1 PCT/JP2022/034259 JP2022034259W WO2023048025A1 WO 2023048025 A1 WO2023048025 A1 WO 2023048025A1 JP 2022034259 W JP2022034259 W JP 2022034259W WO 2023048025 A1 WO2023048025 A1 WO 2023048025A1
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- formula
- mass
- resin composition
- carbon atoms
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- 239000011342 resin composition Substances 0.000 title claims abstract description 177
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 40
- 239000002184 metal Substances 0.000 title claims abstract description 40
- 239000000805 composite resin Substances 0.000 title claims abstract description 18
- 239000004065 semiconductor Substances 0.000 title claims abstract description 12
- -1 prepreg Substances 0.000 title claims description 118
- 229920005989 resin Polymers 0.000 claims abstract description 128
- 239000011347 resin Substances 0.000 claims abstract description 128
- 229920002725 thermoplastic elastomer Polymers 0.000 claims abstract description 85
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical group C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims abstract description 55
- 229920001187 thermosetting polymer Polymers 0.000 claims abstract description 54
- 239000000178 monomer Substances 0.000 claims abstract description 46
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical group C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 claims abstract description 43
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 claims abstract description 27
- 150000001875 compounds Chemical class 0.000 claims description 251
- 125000000217 alkyl group Chemical group 0.000 claims description 119
- 125000004432 carbon atom Chemical group C* 0.000 claims description 116
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 110
- 229920000642 polymer Polymers 0.000 claims description 67
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 54
- 239000007787 solid Substances 0.000 claims description 54
- 239000004643 cyanate ester Substances 0.000 claims description 39
- 125000003118 aryl group Chemical group 0.000 claims description 38
- 125000000962 organic group Chemical group 0.000 claims description 34
- 239000000945 filler Substances 0.000 claims description 29
- 239000000463 material Substances 0.000 claims description 29
- 239000003063 flame retardant Substances 0.000 claims description 28
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 28
- CREMABGTGYGIQB-UHFFFAOYSA-N carbon carbon Chemical compound C.C CREMABGTGYGIQB-UHFFFAOYSA-N 0.000 claims description 25
- 239000011203 carbon fibre reinforced carbon Substances 0.000 claims description 25
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 24
- 239000011888 foil Substances 0.000 claims description 22
- 239000004593 Epoxy Chemical class 0.000 claims description 20
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 20
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 18
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 18
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 17
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 10
- 125000002723 alicyclic group Chemical group 0.000 claims description 10
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 10
- 125000005843 halogen group Chemical group 0.000 claims description 10
- 239000000377 silicon dioxide Substances 0.000 claims description 10
- 150000003923 2,5-pyrrolediones Chemical class 0.000 claims description 9
- 125000003545 alkoxy group Chemical group 0.000 claims description 9
- 229910052698 phosphorus Inorganic materials 0.000 claims description 9
- 239000011574 phosphorus Substances 0.000 claims description 9
- 125000004414 alkyl thio group Chemical group 0.000 claims description 8
- 125000005110 aryl thio group Chemical group 0.000 claims description 8
- 125000004104 aryloxy group Chemical group 0.000 claims description 8
- 150000002170 ethers Chemical class 0.000 claims description 8
- 125000003396 thiol group Chemical group [H]S* 0.000 claims description 8
- 229910052582 BN Inorganic materials 0.000 claims description 7
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims description 7
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 7
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 claims description 6
- 229910002113 barium titanate Inorganic materials 0.000 claims description 6
- AOWKSNWVBZGMTJ-UHFFFAOYSA-N calcium titanate Chemical compound [Ca+2].[O-][Ti]([O-])=O AOWKSNWVBZGMTJ-UHFFFAOYSA-N 0.000 claims description 6
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 claims description 6
- 229910052839 forsterite Inorganic materials 0.000 claims description 6
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 claims description 6
- VEALVRVVWBQVSL-UHFFFAOYSA-N strontium titanate Chemical compound [Sr+2].[O-][Ti]([O-])=O VEALVRVVWBQVSL-UHFFFAOYSA-N 0.000 claims description 6
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 6
- 229910052454 barium strontium titanate Inorganic materials 0.000 claims description 5
- 239000004020 conductor Substances 0.000 claims description 5
- 229920000265 Polyparaphenylene Polymers 0.000 claims description 3
- 229920005604 random copolymer Polymers 0.000 abstract description 19
- 239000010410 layer Substances 0.000 description 50
- 229920001955 polyphenylene ether Polymers 0.000 description 48
- 239000000047 product Substances 0.000 description 48
- 239000011521 glass Substances 0.000 description 39
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 36
- 238000000034 method Methods 0.000 description 35
- 239000003822 epoxy resin Substances 0.000 description 28
- 229920000647 polyepoxide Polymers 0.000 description 28
- 239000000203 mixture Substances 0.000 description 23
- 125000001424 substituent group Chemical group 0.000 description 22
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 20
- 230000009477 glass transition Effects 0.000 description 19
- 239000002904 solvent Substances 0.000 description 19
- 239000011889 copper foil Substances 0.000 description 17
- 238000003786 synthesis reaction Methods 0.000 description 17
- 239000000758 substrate Substances 0.000 description 16
- 239000011572 manganese Substances 0.000 description 15
- 239000000243 solution Substances 0.000 description 15
- 238000010521 absorption reaction Methods 0.000 description 14
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 14
- 229920003986 novolac Polymers 0.000 description 14
- 150000001491 aromatic compounds Chemical class 0.000 description 13
- 230000015572 biosynthetic process Effects 0.000 description 13
- MYRTYDVEIRVNKP-UHFFFAOYSA-N 1,2-Divinylbenzene Chemical compound C=CC1=CC=CC=C1C=C MYRTYDVEIRVNKP-UHFFFAOYSA-N 0.000 description 12
- KJCVRFUGPWSIIH-UHFFFAOYSA-N 1-naphthol Chemical compound C1=CC=C2C(O)=CC=CC2=C1 KJCVRFUGPWSIIH-UHFFFAOYSA-N 0.000 description 12
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 12
- 150000003440 styrenes Chemical class 0.000 description 12
- 239000000126 substance Substances 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 11
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 11
- 239000006087 Silane Coupling Agent Substances 0.000 description 10
- 238000005227 gel permeation chromatography Methods 0.000 description 10
- 229920001935 styrene-ethylene-butadiene-styrene Polymers 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 9
- 238000000465 moulding Methods 0.000 description 9
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 8
- PXKLMJQFEQBVLD-UHFFFAOYSA-N bisphenol F Chemical compound C1=CC(O)=CC=C1CC1=CC=C(O)C=C1 PXKLMJQFEQBVLD-UHFFFAOYSA-N 0.000 description 8
- YCIMNLLNPGFGHC-UHFFFAOYSA-N catechol Chemical compound OC1=CC=CC=C1O YCIMNLLNPGFGHC-UHFFFAOYSA-N 0.000 description 8
- 239000002270 dispersing agent Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- 238000005259 measurement Methods 0.000 description 8
- 125000000843 phenylene group Chemical group C1(=C(C=CC=C1)*)* 0.000 description 8
- 239000002585 base Substances 0.000 description 7
- 238000000576 coating method Methods 0.000 description 7
- 229920001577 copolymer Polymers 0.000 description 7
- 238000005530 etching Methods 0.000 description 7
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 7
- 150000002430 hydrocarbons Chemical group 0.000 description 7
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 6
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical group C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 6
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 6
- XYLMUPLGERFSHI-UHFFFAOYSA-N alpha-Methylstyrene Chemical compound CC(=C)C1=CC=CC=C1 XYLMUPLGERFSHI-UHFFFAOYSA-N 0.000 description 6
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 6
- 238000007334 copolymerization reaction Methods 0.000 description 6
- 238000001035 drying Methods 0.000 description 6
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 6
- 238000002156 mixing Methods 0.000 description 6
- 239000000843 powder Substances 0.000 description 6
- 239000002759 woven fabric Substances 0.000 description 6
- HTQNYBBTZSBWKL-UHFFFAOYSA-N 2,3,4-trihydroxbenzophenone Chemical compound OC1=C(O)C(O)=CC=C1C(=O)C1=CC=CC=C1 HTQNYBBTZSBWKL-UHFFFAOYSA-N 0.000 description 5
- VPWNQTHUCYMVMZ-UHFFFAOYSA-N 4,4'-sulfonyldiphenol Chemical compound C1=CC(O)=CC=C1S(=O)(=O)C1=CC=C(O)C=C1 VPWNQTHUCYMVMZ-UHFFFAOYSA-N 0.000 description 5
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 5
- 239000000654 additive Substances 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 238000009835 boiling Methods 0.000 description 5
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- 238000011161 development Methods 0.000 description 5
- 125000004185 ester group Chemical group 0.000 description 5
- LYKRPDCJKSXAHS-UHFFFAOYSA-N phenyl-(2,3,4,5-tetrahydroxyphenyl)methanone Chemical compound OC1=C(O)C(O)=CC(C(=O)C=2C=CC=CC=2)=C1O LYKRPDCJKSXAHS-UHFFFAOYSA-N 0.000 description 5
- 239000002356 single layer Substances 0.000 description 5
- DEQUKPCANKRTPZ-UHFFFAOYSA-N (2,3-dihydroxyphenyl)-phenylmethanone Chemical compound OC1=CC=CC(C(=O)C=2C=CC=CC=2)=C1O DEQUKPCANKRTPZ-UHFFFAOYSA-N 0.000 description 4
- FRASJONUBLZVQX-UHFFFAOYSA-N 1,4-dioxonaphthalene Natural products C1=CC=C2C(=O)C=CC(=O)C2=C1 FRASJONUBLZVQX-UHFFFAOYSA-N 0.000 description 4
- BOKGTLAJQHTOKE-UHFFFAOYSA-N 1,5-dihydroxynaphthalene Chemical compound C1=CC=C2C(O)=CC=CC2=C1O BOKGTLAJQHTOKE-UHFFFAOYSA-N 0.000 description 4
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- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 4
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 4
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- 229910019142 PO4 Inorganic materials 0.000 description 4
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- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 4
- WTEOIRVLGSZEPR-UHFFFAOYSA-N boron trifluoride Chemical compound FB(F)F WTEOIRVLGSZEPR-UHFFFAOYSA-N 0.000 description 4
- 150000001735 carboxylic acids Chemical class 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 125000004122 cyclic group Chemical group 0.000 description 4
- LZCLXQDLBQLTDK-UHFFFAOYSA-N ethyl 2-hydroxypropanoate Chemical compound CCOC(=O)C(C)O LZCLXQDLBQLTDK-UHFFFAOYSA-N 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 4
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- 125000005439 maleimidyl group Chemical group C1(C=CC(N1*)=O)=O 0.000 description 4
- FZZQNEVOYIYFPF-UHFFFAOYSA-N naphthalene-1,6-diol Chemical compound OC1=CC=CC2=CC(O)=CC=C21 FZZQNEVOYIYFPF-UHFFFAOYSA-N 0.000 description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 4
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- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 4
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- 229920002554 vinyl polymer Polymers 0.000 description 4
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- OMIHGPLIXGGMJB-UHFFFAOYSA-N 7-oxabicyclo[4.1.0]hepta-1,3,5-triene Chemical group C1=CC=C2OC2=C1 OMIHGPLIXGGMJB-UHFFFAOYSA-N 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
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- ORILYTVJVMAKLC-UHFFFAOYSA-N adamantane Chemical group C1C(C2)CC3CC1CC2C3 ORILYTVJVMAKLC-UHFFFAOYSA-N 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
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- 229910052802 copper Inorganic materials 0.000 description 3
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- ZUOUZKKEUPVFJK-UHFFFAOYSA-N diphenyl Chemical compound C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 3
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- FAHBNUUHRFUEAI-UHFFFAOYSA-M hydroxidooxidoaluminium Chemical compound O[Al]=O FAHBNUUHRFUEAI-UHFFFAOYSA-M 0.000 description 3
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- MNZMMCVIXORAQL-UHFFFAOYSA-N naphthalene-2,6-diol Chemical compound C1=C(O)C=CC2=CC(O)=CC=C21 MNZMMCVIXORAQL-UHFFFAOYSA-N 0.000 description 3
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- 230000000930 thermomechanical effect Effects 0.000 description 3
- SLBOQBILGNEPEB-UHFFFAOYSA-N 1-chloroprop-2-enylbenzene Chemical compound C=CC(Cl)C1=CC=CC=C1 SLBOQBILGNEPEB-UHFFFAOYSA-N 0.000 description 2
- YBYIRNPNPLQARY-UHFFFAOYSA-N 1H-indene Chemical compound C1=CC=C2CC=CC2=C1 YBYIRNPNPLQARY-UHFFFAOYSA-N 0.000 description 2
- NXXYKOUNUYWIHA-UHFFFAOYSA-N 2,6-Dimethylphenol Chemical compound CC1=CC=CC(C)=C1O NXXYKOUNUYWIHA-UHFFFAOYSA-N 0.000 description 2
- 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 2
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 description 2
- QTWJRLJHJPIABL-UHFFFAOYSA-N 2-methylphenol;3-methylphenol;4-methylphenol Chemical compound CC1=CC=C(O)C=C1.CC1=CC=CC(O)=C1.CC1=CC=CC=C1O QTWJRLJHJPIABL-UHFFFAOYSA-N 0.000 description 2
- KUDUQBURMYMBIJ-UHFFFAOYSA-N 2-prop-2-enoyloxyethyl prop-2-enoate Chemical compound C=CC(=O)OCCOC(=O)C=C KUDUQBURMYMBIJ-UHFFFAOYSA-N 0.000 description 2
- 239000005995 Aluminium silicate Substances 0.000 description 2
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- BPSIOYPQMFLKFR-UHFFFAOYSA-N trimethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CO[Si](OC)(OC)CCCOCC1CO1 BPSIOYPQMFLKFR-UHFFFAOYSA-N 0.000 description 1
- GBGATMPHTZEUHH-UHFFFAOYSA-N trimethoxysilane hydrochloride Chemical compound Cl.CO[SiH](OC)OC GBGATMPHTZEUHH-UHFFFAOYSA-N 0.000 description 1
- XZZNDPSIHUTMOC-UHFFFAOYSA-N triphenyl phosphate Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)(=O)OC1=CC=CC=C1 XZZNDPSIHUTMOC-UHFFFAOYSA-N 0.000 description 1
- KOWVWXQNQNCRRS-UHFFFAOYSA-N tris(2,4-dimethylphenyl) phosphate Chemical compound CC1=CC(C)=CC=C1OP(=O)(OC=1C(=CC(C)=CC=1)C)OC1=CC=C(C)C=C1C KOWVWXQNQNCRRS-UHFFFAOYSA-N 0.000 description 1
- HQUQLFOMPYWACS-UHFFFAOYSA-N tris(2-chloroethyl) phosphate Chemical compound ClCCOP(=O)(OCCCl)OCCCl HQUQLFOMPYWACS-UHFFFAOYSA-N 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
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- BNEMLSQAJOPTGK-UHFFFAOYSA-N zinc;dioxido(oxo)tin Chemical compound [Zn+2].[O-][Sn]([O-])=O BNEMLSQAJOPTGK-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/24—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L53/00—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L53/02—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl-aromatic monomers and conjugated dienes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L71/00—Compositions of polyethers obtained by reactions forming an ether link in the main chain; Compositions of derivatives of such polymers
- C08L71/08—Polyethers derived from hydroxy compounds or from their metallic derivatives
- C08L71/10—Polyethers derived from hydroxy compounds or from their metallic derivatives from phenols
- C08L71/12—Polyphenylene oxides
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/03—Use of materials for the substrate
Definitions
- the content of the filler (E) is 10 to 300 parts by mass with respect to 100 parts by mass of the resin solid content,
- Ar represents an aromatic hydrocarbon linking group. * represents a bonding position.
- R M1 , R M2 , R M3 , and R M4 each independently represent a hydrogen atom or an organic group.
- R M5 and R M6 each independently represent a hydrogen atom or an alkyl group.
- the content of the thermoplastic elastomer (A) in the resin composition of the present embodiment is preferably 1 part by mass or more, more preferably 2 parts by mass or more, with respect to 100 parts by mass of the resin solid content. It is more preferably at least 8 parts by mass, even more preferably at least 12 parts by mass, even more preferably at least 16 parts by mass, further preferably 20 parts by mass. parts or more, particularly preferably 25 parts by mass or more.
- the content is at least the above lower limit, low dielectric loss tangent property, crack resistance, low thermal expansion property, especially low thermal expansion property tend to be further improved.
- the upper limit of the content of the thermoplastic elastomer (A) is preferably 40 parts by mass or less, more preferably 35 parts by mass or less, with respect to 100 parts by mass of the resin solid content. It may be 30 parts by mass or less, 25 parts by mass or less, 21 parts by mass or less, or 18 parts by mass or less depending on the application. When the content is equal to or less than the upper limit, the crack resistance tends to be further improved.
- the resin composition of the present embodiment may contain only one type of thermoplastic elastomer (A), or may contain two or more types. When two or more types are included, the total amount is preferably within the above range.
- the compatible thermosetting resin (B) is preferably a thermosetting resin containing an aromatic ring and a vinyl group. By using such a resin, it tends to be compatible with the styrene monomer units contained in the thermoplastic elastomer (A), and the compatibility tends to be further improved.
- the compatible thermosetting resin (B) has a number average molecular weight Mn of preferably 300 or more, more preferably 500 or more, even more preferably 1,000 or more. , 500 or more.
- the upper limit is preferably 130,000 or less, more preferably 120,000 or less, even more preferably 110,000 or less, even more preferably 100,000 or less. When two or more thermosetting resins (B) are included, the number average molecular weight of the mixture is preferably within the above range.
- the structure of the chain end of the polymer having the structural unit represented by the formula (V) is not particularly limited, but the group derived from the divinyl aromatic compound may have the structure of the following formula (E1). mentioned.
- the excellent low dielectric properties of the polymer having the structural unit represented by the formula (V), especially Df and dielectric properties after moisture absorption, are effectively applied to the cured product of the resin composition.
- the upper limit of the weight average molecular weight Mw is preferably 160,000 or less, more preferably 150,000 or less, even more preferably 140,000 or less, and even more preferably 130,000 or less. .
- the thickness is equal to or less than the above upper limit, there is a tendency that poor embedding is less likely to occur when the prepreg or resin sheet is laminated on the circuit board.
- the vinyl group equivalent weight of the polymer having the structural unit represented by formula (V) is 200 g/eq. 230 g/eq. more preferably 250 g/eq. It is more preferable that it is above. Moreover, the equivalent weight of the vinyl group is 1200 g/eq. It is preferably less than or equal to 1000 g/eq. It is more preferably less than or equal to 800 g/eq. 600 g/eq. 400 g/eq. Below, 300g/eq. It may be below. When the amount is at least the above lower limit, the storage stability of the resin composition tends to improve, and the fluidity of the resin composition tends to improve.
- the upper limit of the content of the polymer having the structural unit represented by formula (V) is preferably 45 parts by mass or less when the resin solid content in the resin composition is 100 parts by mass. It is more preferably 40 parts by mass or less, and even more preferably 35 parts by mass or less. Moreover, the metal foil peel strength of the obtained hardened
- the polymer having the structural unit represented by formula (V) may be contained in the resin composition either singly or in combination of two or more. When two or more types are included, the total amount is preferably within the above range.
- the modified polyphenylene ether compound (g) in the present embodiment is preferably a compound represented by formula (OP-2).
- -(O-X-O)- is the formula (OP-3):
- R 4 , R 5 , R 6 , R 10 and R 11 may be the same or different and are an alkyl group having 6 or less carbon atoms or a phenyl group.
- a polyphenylene ether compound having a carbon-carbon unsaturated double bond at its end may be produced by a known method, or a commercially available product may be used.
- Commercially available products include, for example, "SA9000” manufactured by SABIC Innovative Plastics Co., Ltd. as a modified polyphenylene ether compound having a methacryl group at the end.
- modified polyphenylene ether compounds having a terminal vinylbenzyl group include "OPE-2St1200” and "OPE-2st2200” manufactured by Mitsubishi Gas Chemical.
- Such other resin (C) is not necessarily an essential component for achieving the effect of the present invention, but by blending these components, various physical properties can be imparted to the resin composition or cured product. , the dielectric properties, moisture absorption and heat resistance of the resin composition or cured product can be further improved.
- a cyanate ester compound having a naphthol aralkyl skeleton, a naphthylene ether skeleton, a xylene skeleton, a trisphenolmethane skeleton, or an adamantane skeleton has a relatively large number of functional group equivalents, and the number of unreacted cyanate ester groups is small. Therefore, a cured product of a resin composition using these tends to be even more excellent in low water absorption. Also, mainly due to having an aromatic skeleton or adamantane skeleton, the plating adhesion tends to be further improved.
- R 1 M7 and R 1 M8 are each independently an alkyl group, preferably an alkyl group having 1 to 6 carbon atoms, more preferably an alkyl group having 1 to 3 carbon atoms, and particularly preferably a methyl group.
- mx is 1 or 2, preferably 2;
- lx is 0 or 1, preferably 1;
- R M9 and R M10 each independently represent a hydrogen atom or an alkyl group, more preferably an alkyl group.
- the compound represented by formula (M1-1) is preferably a compound represented by formula (M1-2) below.
- R M21 , R M22 , R M23 and R M24 each independently represent a hydrogen atom or an organic group
- R M25 and R M26 each independently represent a hydrogen atom or an alkyl
- R M27 , R M28 , R M29 and R M30 each independently represent a hydrogen atom or an organic group
- R M31 and R M32 each independently represent a hydrogen atom or an alkyl group
- R M33 , RM34 , RM35 and RM36 each independently represent a hydrogen atom or an organic group
- RM37 , RM38 and RM39 each independently represent a hydrogen atom or an alkyl group
- nx is represents an integer of 1 or more and 20 or less.
- the resin composition in the present embodiment may contain only one type of epoxy compound, or may contain two or more types. When two or more types are included, the total amount is preferably within the above range. In addition, the resin composition in the present embodiment can also be configured so as not to substantially contain an epoxy compound.
- the resin composition of the present embodiment preferably contains a filler (E).
- a filler (E) By including the filler (E), physical properties such as dielectric properties (low dielectric constant, low dielectric loss tangent, etc.), flame resistance, and low thermal expansion of the resin composition and its cured product can be further improved.
- the filler (E) used in the present embodiment preferably has excellent low dielectric properties.
- the filler (E) used in the present embodiment preferably has a dielectric constant (Dk) of 8.0 or less, more preferably 6.0 or less, measured according to the cavity resonator perturbation method. It is more preferably 4.0 or less.
- the lower limit value of the dielectric constant is practically 2.0 or more, for example.
- the compound (F1) used in this embodiment is also preferably composed only of atoms selected from carbon atoms, hydrogen atoms, oxygen atoms and silicon atoms, and from carbon atoms, hydrogen atoms and oxygen atoms More preferably, it is composed only of selected atoms.
- the compound (F1) used in this embodiment may or may not have a polar group.
- the compound (F1) used in this embodiment preferably does not have a polar group.
- Polar groups are exemplified by amino groups, carboxyl groups, hydroxy groups and nitro groups.
- Substantially free means that the content of the active ester compound is less than 1 part by mass, preferably less than 0.1 part by mass, with respect to 100 parts by mass of the resin solid content in the resin composition. More preferably, it is less than 0.01 part by mass.
- the metal foil-clad laminate of the present embodiment preferably has a low coefficient of thermal expansion (CTE) measured using a laminate from which the metal foil has been removed by etching.
- CTE is preferably 10.0 ppm/°C or less.
- 0 is ideal, but 0.001 ppm/°C or more is practical.
- the measurement of CTE follows description of the Example mentioned later.
- Examples of the support used here include polyethylene film, polypropylene film, polycarbonate film, polyethylene terephthalate film, ethylenetetrafluoroethylene copolymer film, and a release film obtained by applying a release agent to the surface of these films, Organic film substrates such as polyimide films, conductor foils such as copper foils and aluminum foils, glass plates, SUS (Steel Use Stainless) plates, FRP (Fiber-Reinforced Plastics) and other plate-like substrates. It is not particularly limited.
- the physical properties (peel strength, dielectric loss tangent, post-curing appearance, coefficient of thermal expansion (CTE)) of the resulting copper-clad laminate were evaluated according to the methods described later.
- a test piece (30 mm ⁇ 150 mm ⁇ 0.8 mm) was prepared by removing the copper foil from the obtained copper foil clad laminate by etching, and the dielectric loss tangent (Df) at 10 GHz was measured using a perturbation method cavity resonator. bottom. The measurement temperature was 23°C.
- the perturbation method cavity resonator used was Agilent 8722ES, a product of Agilent Technologies. It was evaluated as follows. A: Less than 0.0025 B: 0.0025 or more
- Comparative example 8 In Example 3, the modified polyphenylene ether compound was not blended, and the amount of the maleimide compound (MIR-3000-70MT manufactured by Nippon Kayaku Co., Ltd., corresponding to the compound represented by formula (M3)) was changed to 55 parts by mass. changed and others did as well.
- MIR-3000-70MT manufactured by Nippon Kayaku Co., Ltd. corresponding to the compound represented by formula (M3)
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Abstract
Description
一方、電子機器等の用途は多様化し拡大をつづけている。これを受け、プリント配線板やこれに用いる金属箔張積層板、プリプレグなどに求められる諸特性も多様化し、かつ厳しいものとなっている。そうした要求特性を考慮しながら、改善されたプリント配線板を得るために、各種の材料や加工法が提案されている。その1つとして、プリプレグを構成する樹脂材料の改良開発が挙げられる。 2. Description of the Related Art In recent years, high integration and miniaturization of semiconductor elements used in mobile terminals, electronic devices, communication devices, and the like are accelerating. Along with this, there is a demand for a technique that enables high-density mounting of semiconductor elements, and improvement is also demanded for printed wiring boards that occupy an important position.
On the other hand, applications such as electronic devices continue to diversify and expand. In response to this, various characteristics required for printed wiring boards, metal foil-clad laminates, prepregs, and the like used therefor are becoming more diversified and stricter. Various materials and processing methods have been proposed in order to obtain improved printed wiring boards while considering such required properties. One of them is the improvement and development of the resin material that constitutes the prepreg.
また、特許文献2には、多官能ビニル芳香族重合体(A)と熱硬化性化合物(B)とを含み、ラジカル重合開始剤を含まない樹脂組成物が開示されている。 For example, Patent Document 1 discloses a maleimide compound (A), a cyanate ester compound (B), a polyphenylene ether compound (C) represented by a predetermined formula and having a number average molecular weight of 1000 to 7000, and a block copolymer having a styrene skeleton. A resin composition containing a polymer (D) is disclosed.
Further, Patent Document 2 discloses a resin composition containing a polyfunctional vinyl aromatic polymer (A) and a thermosetting compound (B) and containing no radical polymerization initiator.
本発明は、上記課題を解決することを目的とするものであって、硬化後外観に優れ、かつ、低CTEを達成できる新規な樹脂組成物、ならびに、プリプレグ、金属箔張積層板、樹脂複合シート、プリント配線板、および、半導体装置を提供することを目的とする。 As described above, applications such as electronic devices continue to diversify and expand, and there is a demand for new resin materials for prepregs and the like. In particular, there is a demand for further development of materials for resin compositions that are excellent in post-curing appearance and can achieve a low CTE (low coefficient of thermal expansion).
An object of the present invention is to solve the above problems, and a novel resin composition that is excellent in appearance after curing and can achieve a low CTE, as well as a prepreg, a metal foil clad laminate, and a resin composite An object of the present invention is to provide a sheet, a printed wiring board, and a semiconductor device.
具体的には、下記手段により、上記課題は解決された。
<1> 熱可塑性エラストマー(A)と、前記熱可塑性エラストマー(A)と相溶する熱硬化性樹脂(B)とを含み、
前記熱可塑性エラストマー(A)は、スチレン単量体単位と、
ブタジエン単量体単位、イソプレン単量体単位、水添ブタジエン単量体単位、および、水添イソプレン単量体単位からなる群より選択される1種以上と
を含むランダム共重合ブロックを含有し、かつ、
数平均分子量が50,000以上である、
樹脂組成物。
<2> 前記熱可塑性エラストマー(A)の含有量が、樹脂固形分100質量部に対して1~40質量部である、<1>に記載の樹脂組成物。
<3> 前記熱可塑性エラストマー(A)と相溶する熱硬化性樹脂(B)が、芳香環とビニル基を含む熱硬化性樹脂である、<1>または<2>に記載の樹脂組成物。
<4> 前記熱可塑性エラストマー(A)と相溶する熱硬化性樹脂(B)が、式(V)で表される構成単位を有する重合体、および、末端に炭素-炭素不飽和二重結合を有するポリフェニレンエーテル化合物からなる群より選択される1種以上を含む、<1>または<2>に記載の樹脂組成物。
<5> 前記熱可塑性エラストマー(A)と相溶する熱硬化性樹脂(B)の含有量が、樹脂固形分100質量部に対して10~90質量部である、<1>~<4>のいずれか1つに記載の樹脂組成物。
<6> さらに、シアン酸エステル化合物、マレイミド化合物、および、エポキシ化合物からなる群より選択される1種以上を含む、<1>~<5>のいずれか1つに記載の樹脂組成物。
<7>前記マレイミド化合物が、式(M0)で表される化合物、式(M1)で表される化合物、式(M2)で表される化合物、式(M3)で表される化合物、式(M4)で表される化合物、および、式(M5)で表される化合物からなる群より選択される1種以上を含む、<6>に記載の樹脂組成物。
<8>前記マレイミド化合物が、式(M1)で表される化合物および/または式(M3)で表される化合物を含む、<6>に記載の樹脂組成物。
<9>さらに、難燃剤(D)を含む、<1>~<8>のいずれか1つに記載の樹脂組成物。
<10>前記難燃剤(D)がリン系難燃剤を含む、<9>に記載の樹脂組成物。
<11>さらに、充填材(E)を含む、<1>~<10>のいずれか1つに記載の樹脂組成物。
<12>前記充填材(E)が、シリカ、水酸化アルミニウム、窒化アルミニウム、窒化ホウ素、フォルステライト、酸化チタン、チタン酸バリウム、チタン酸ストロンチウム、および、チタン酸カルシウムからなる群より選択される1種以上を含む、<11>に記載の樹脂組成物。
<13>前記充填材(E)の含有量が、樹脂固形分100質量部に対して10~300質量部である、<11>または<12>に記載の樹脂組成物。
<14>さらに、エチレン性不飽和基を有するモノマーまたはオリゴマーを樹脂固形分100質量部に対し、0.5~30質量部含む、<1>~<13>のいずれか1つに記載の樹脂組成物。
<15>前記熱可塑性エラストマー(A)の含有量が、樹脂固形分100質量部に対して1~40質量部であり、
前記熱可塑性エラストマー(A)と相溶する熱硬化性樹脂(B)が、芳香環とビニル基を含む熱硬化性樹脂であり、
前記熱可塑性エラストマー(A)と相溶する熱硬化性樹脂(B)が、式(V)で表される構成単位を有する重合体、および、末端に炭素-炭素不飽和二重結合を有するポリフェニレンエーテル化合物からなる群より選択される1種以上を含み、
前記熱可塑性エラストマー(A)と相溶する熱硬化性樹脂(B)の含有量が、樹脂固形分100質量部に対して10~90質量部であり、
さらに、シアン酸エステル化合物、マレイミド化合物、および、エポキシ化合物からなる群より選択される1種以上を含み、
前記マレイミド化合物が、式(M1)で表される化合物、式(M3)で表される化合物、および、式(M5)で表される化合物からなる群より選択される1種以上を含み、
さらに、難燃剤(D)を含み、
前記難燃剤(D)がリン系難燃剤を含み、
さらに、充填材(E)を含み、
前記充填材(E)が、シリカ、水酸化アルミニウム、窒化アルミニウム、窒化ホウ素、フォルステライト、酸化チタン、チタン酸バリウム、チタン酸ストロンチウム、および、チタン酸カルシウムからなる群より選択される1種以上を含み、
前記充填材(E)の含有量が、樹脂固形分100質量部に対して10~300質量部であり、
さらに、エチレン性不飽和基を有するモノマーまたはオリゴマーを樹脂固形分100質量部に対し、0.5~30質量部含む、<1>に記載の樹脂組成物。
<16>基材と、<1>~<15>のいずれか1つに記載の樹脂組成物とから形成された、プリプレグ。
<17><16>に記載のプリプレグから形成された少なくとも1つの層と、前記プリプレグから形成された層の片面または両面に配置された金属箔とを含む、金属箔張積層板。
<18>支持体と、前記支持体の表面に配置された<1>~<15>のいずれか1つに記載の樹脂組成物から形成された層とを含む、樹脂複合シート。
<19>絶縁層と、前記絶縁層の表面に配置された導体層とを含むプリント配線板であって、前記絶縁層が、<1>~<15>のいずれか1つに記載の樹脂組成物から形成された層および<16>に記載のプリプレグから形成された層の少なくとも一方を含む、プリント配線板。
<20><19>に記載のプリント配線板を含む半導体装置。 Based on the above-mentioned problems, the present inventors conducted studies and found that the above-mentioned problems were solved by using a thermoplastic elastomer having a predetermined random copolymer block.
Specifically, the above problems have been solved by the following means.
<1> comprising a thermoplastic elastomer (A) and a thermosetting resin (B) compatible with the thermoplastic elastomer (A),
The thermoplastic elastomer (A) includes styrene monomer units,
butadiene monomer units, isoprene monomer units, hydrogenated butadiene monomer units, and at least one selected from the group consisting of hydrogenated isoprene monomer units; and,
A number average molecular weight of 50,000 or more,
Resin composition.
<2> The resin composition according to <1>, wherein the content of the thermoplastic elastomer (A) is 1 to 40 parts by mass based on 100 parts by mass of the resin solid content.
<3> The resin composition according to <1> or <2>, wherein the thermosetting resin (B) compatible with the thermoplastic elastomer (A) is a thermosetting resin containing an aromatic ring and a vinyl group. .
<4> The thermosetting resin (B) compatible with the thermoplastic elastomer (A) is a polymer having a structural unit represented by the formula (V), and a carbon-carbon unsaturated double bond at the end The resin composition according to <1> or <2>, comprising one or more selected from the group consisting of polyphenylene ether compounds having
<5> The content of the thermosetting resin (B) compatible with the thermoplastic elastomer (A) is 10 to 90 parts by mass with respect to 100 parts by mass of the resin solid content <1> to <4> The resin composition according to any one of.
<6> The resin composition according to any one of <1> to <5>, further comprising one or more selected from the group consisting of cyanate ester compounds, maleimide compounds, and epoxy compounds.
<7> The maleimide compound is a compound represented by the formula (M0), a compound represented by the formula (M1), a compound represented by the formula (M2), a compound represented by the formula (M3), a compound represented by the formula ( The resin composition according to <6>, comprising one or more selected from the group consisting of the compound represented by M4) and the compound represented by formula (M5).
<8> The resin composition according to <6>, wherein the maleimide compound comprises a compound represented by formula (M1) and/or a compound represented by formula (M3).
<9> The resin composition according to any one of <1> to <8>, further comprising a flame retardant (D).
<10> The resin composition according to <9>, wherein the flame retardant (D) contains a phosphorus flame retardant.
<11> The resin composition according to any one of <1> to <10>, further comprising a filler (E).
<12> The filler (E) is selected from the group consisting of silica, aluminum hydroxide, aluminum nitride, boron nitride, forsterite, titanium oxide, barium titanate, strontium titanate, and calcium titanate. The resin composition according to <11>, comprising at least one species.
<13> The resin composition according to <11> or <12>, wherein the content of the filler (E) is 10 to 300 parts by mass with respect to 100 parts by mass of the resin solid content.
<14> The resin according to any one of <1> to <13>, further comprising 0.5 to 30 parts by mass of a monomer or oligomer having an ethylenically unsaturated group with respect to 100 parts by mass of the resin solid content. Composition.
<15> The content of the thermoplastic elastomer (A) is 1 to 40 parts by mass with respect to 100 parts by mass of the resin solid content,
The thermosetting resin (B) compatible with the thermoplastic elastomer (A) is a thermosetting resin containing an aromatic ring and a vinyl group,
The thermosetting resin (B) compatible with the thermoplastic elastomer (A) is a polymer having a structural unit represented by the formula (V), and a polyphenylene having a carbon-carbon unsaturated double bond at the end. including one or more selected from the group consisting of ether compounds,
The content of the thermosetting resin (B) compatible with the thermoplastic elastomer (A) is 10 to 90 parts by mass with respect to 100 parts by mass of the resin solid content,
Furthermore, cyanate ester compounds, maleimide compounds, and one or more selected from the group consisting of epoxy compounds,
The maleimide compound includes one or more selected from the group consisting of a compound represented by formula (M1), a compound represented by formula (M3), and a compound represented by formula (M5),
Furthermore, containing a flame retardant (D),
The flame retardant (D) contains a phosphorus-based flame retardant,
Furthermore, including a filler (E),
The filler (E) contains at least one selected from the group consisting of silica, aluminum hydroxide, aluminum nitride, boron nitride, forsterite, titanium oxide, barium titanate, strontium titanate, and calcium titanate. including
The content of the filler (E) is 10 to 300 parts by mass with respect to 100 parts by mass of the resin solid content,
The resin composition according to <1>, further comprising 0.5 to 30 parts by mass of a monomer or oligomer having an ethylenically unsaturated group with respect to 100 parts by mass of the resin solid content.
<16> A prepreg formed from a substrate and the resin composition according to any one of <1> to <15>.
<17> A metal foil clad laminate comprising at least one layer formed from the prepreg according to <16> and a metal foil disposed on one side or both sides of the layer formed from the prepreg.
<18> A resin composite sheet comprising a support and a layer formed from the resin composition according to any one of <1> to <15> disposed on the surface of the support.
<19> A printed wiring board comprising an insulating layer and a conductor layer disposed on the surface of the insulating layer, wherein the insulating layer comprises the resin composition according to any one of <1> to <15>. A printed wiring board comprising at least one of a layer formed from a material and a layer formed from the prepreg according to <16>.
<20> A semiconductor device including the printed wiring board according to <19>.
なお、本明細書において「~」とはその前後に記載される数値を下限値および上限値として含む意味で使用される。
本明細書において、各種物性値および特性値は、特に述べない限り、23℃におけるものとする。
本明細書における基(原子団)の表記において、置換および無置換を記していない表記は、置換基を有さない基(原子団)と共に置換基を有する基(原子団)をも包含する。例えば、「アルキル基」とは、置換基を有さないアルキル基(無置換アルキル基)のみならず、置換基を有するアルキル基(置換アルキル基)をも包含する。本明細書では、置換および無置換を記していない表記は、無置換の方が好ましい。
本明細書において、比誘電率とは、物質の真空の誘電率に対する誘電率の比を示す。また、本明細書においては、比誘電率を単に「誘電率」ということがある。
本明細書において、「(メタ)アクリル」は、アクリルおよびメタクリルの双方、または、いずれかを表す。
本明細書で示す規格が年度によって、測定方法等が異なる場合、特に述べない限り、2021年1月1日時点における規格に基づくものとする。 EMBODIMENT OF THE INVENTION Hereinafter, the form (only henceforth "this embodiment") for implementing this invention is demonstrated in detail. In addition, the following embodiment is an example for explaining the present invention, and the present invention is not limited only to this embodiment.
In this specification, the term "~" is used to mean that the numerical values before and after it are included as the lower limit and the upper limit.
In this specification, various physical property values and characteristic values are at 23° C. unless otherwise specified.
In the description of a group (atomic group) in the present specification, a description that does not describe substitution or unsubstituted includes a group (atomic group) having no substituent as well as a group (atomic group) having a substituent. For example, an "alkyl group" includes not only an alkyl group having no substituent (unsubstituted alkyl group) but also an alkyl group having a substituent (substituted alkyl group). In this specification, notations that do not describe substituted and unsubstituted are preferably unsubstituted.
As used herein, the dielectric constant indicates the ratio of the dielectric constant of a substance to the vacuum dielectric constant. In addition, in this specification, the relative dielectric constant may be simply referred to as "permittivity".
As used herein, "(meth)acryl" represents both or either acryl and methacryl.
If the standards shown in this specification differ from year to year in terms of measurement methods, etc., the standards as of January 1, 2021 shall be used unless otherwise specified.
熱可塑性エラストマー(A)を配合することにより、CTEが下がる傾向にあるが、本実施形態では、熱可塑性エラストマー(A)として、ランダム共重合ブロックを有する重合体を用いることにより、さらにCTEを下げることができる。さらに、ランダム共重合ブロックを有する重合体である熱可塑性エラストマー(A)と共に、熱可塑性エラストマー(A)と相溶する熱硬化性樹脂(B)を用いることにより、ミクロ相分離構造を形成し、得られる硬化物の外観にも優れると推測される。
また、柔軟性が向上することにより、高いピール強度を達成できると推測される。さらに、極性が低減することにより、低誘電正接性がより向上すると推測される。 The resin composition of the present embodiment comprises a thermoplastic elastomer (A) and a thermosetting resin (B) compatible with the thermoplastic elastomer (A). Random copolymerization containing monomer units and at least one selected from the group consisting of butadiene monomer units, isoprene monomer units, hydrogenated butadiene monomer units, and hydrogenated isoprene monomer units It is characterized by containing blocks and having a number average molecular weight of 50,000 or more. With such a configuration, it is possible to obtain a novel resin composition that is excellent in appearance after curing and that can achieve a low CTE.
Blending the thermoplastic elastomer (A) tends to lower the CTE. In the present embodiment, the CTE is further lowered by using a polymer having random copolymer blocks as the thermoplastic elastomer (A). be able to. Furthermore, by using a thermosetting resin (B) compatible with the thermoplastic elastomer (A) together with the thermoplastic elastomer (A), which is a polymer having random copolymer blocks, a microphase separation structure is formed, It is presumed that the appearance of the resulting cured product is also excellent.
In addition, it is presumed that high peel strength can be achieved by improving flexibility. Furthermore, it is presumed that the low dielectric loss tangent property is further improved by reducing the polarity.
本実施形態で用いる熱可塑性エラストマー(A)は、スチレン単量体単位と、ブタジエン単量体単位、イソプレン単量体単位、水添ブタジエン単量体単位、および、水添イソプレン単量体単位からなる群より選択される1種以上を含むランダム共重合ブロックを含有し、かつ、数平均分子量が50,000以上である。このような熱可塑性エラストマー(A)を用いることにより、得られる硬化物の外観に優れ、かつ、低いCTEを達成することができる。 <Thermoplastic elastomer (A)>
The thermoplastic elastomer (A) used in the present embodiment is composed of styrene monomer units, butadiene monomer units, isoprene monomer units, hydrogenated butadiene monomer units, and hydrogenated isoprene monomer units. It contains a random copolymer block containing one or more selected from the group consisting of a number average molecular weight of 50,000 or more. By using such a thermoplastic elastomer (A), the appearance of the resulting cured product is excellent and a low CTE can be achieved.
熱可塑性エラストマー(A)はスチレン単量体単位を1種のみ含んでいてもよいし、2種以上含んでいてもよい。2種以上含む場合、合計量が上記範囲であることが好ましい。
本実施形態の熱可塑性エラストマー(A)中のスチレン単量体単位の含有量の測定方法は、国際公開第2017/126469号の記載を参酌でき、この内容は本明細書に組み込まれる。後述する、ブタンジエン単量体単位等についても同様である。 The content of styrene monomer units in the thermoplastic elastomer (A) in the present embodiment is preferably in the range of 10 to 50% by mass, more preferably in the range of 13 to 45% by mass, more preferably 15 to 50% by mass. A range of 40% by weight is more preferred. If the content of styrene monomer units is 50% by mass or less, the adhesiveness and adhesiveness to substrates and the like will be better. In addition, if it is 10% by mass or more, it is preferable because it is possible to suppress the increase in adhesion, less likely to cause adhesive deposits and stop marks, and the easy peeling property between the adhesive surfaces tends to be improved.
The thermoplastic elastomer (A) may contain only one type of styrene monomer unit, or may contain two or more types. When two or more kinds are included, the total amount is preferably within the above range.
The method for measuring the content of styrene monomer units in the thermoplastic elastomer (A) of the present embodiment can be referred to the description of WO 2017/126469, the content of which is incorporated herein. The same applies to butadiene monomer units and the like, which will be described later.
尚、本明細書において、「ブタジエン単量体単位、イソプレン単量体単位、水添ブタジエン単量体単位、および、水添イソプレン単量体単位からなる群より選択される1種以上」を「ブタジエン単量体単位等」ということがある。 As described above, the thermoplastic elastomer (A) in the present embodiment includes, in addition to styrene monomer units, butadiene monomer units, isoprene monomer units, hydrogenated butadiene monomer units, and hydrogenated isoprene monomer units. It contains one or more selected from the group consisting of monomer units, preferably contains butadiene monomer units and/or hydrogenated butadiene monomer units, and more preferably contains at least hydrogenated butadiene monomers. preferable.
In the present specification, "one or more selected from the group consisting of butadiene monomer units, isoprene monomer units, hydrogenated butadiene monomer units, and hydrogenated isoprene monomer units" is defined as " Butadiene monomer units, etc."
ランダム共重合とは、単量体単位の配列が無秩序であることをいい、ランダム共重合ブロックにおいては、スチレン単量体単位と、ブタジエン単量体単位等がランダムに共重合している。
本実施形態で用いる熱可塑性エラストマー(A)は、前記スチレン単量体単位と、ブタジエン単量体単位等のランダム共重合ブロックに加え、スチレン単量体単位を主体とする重合ブロック、および/または、ブタジエン単量体単位等を主体とする重合ブロックを有していてもよい。ここで「主体とする」とは、スチレン単量体単位を主体とする重合ブロックの場合、前記重合ブロック中のスチレン単量体単位の割合が、60質量%以上であることをいい、好ましくは70質量%以上であることをいい、より好ましくは80質量%以上であり、さらに好ましくは90質量%以上であり、一層好ましくは95質量%以上である。ブタジエン単量体単位等を主体とする重合ブロックについても同様である。
本実施形態で用いる熱可塑性エラストマー(A)は、スチレン単量体単位およびブタジエン単量体単位等の合計が全単量体単位の90質量%以上であることが好ましく、95質量%以上であることがより好ましく、97質量%以上であることがさらに好ましく、99質量%以上であることが一層好ましい。 As described above, the thermoplastic elastomer (A) used in the present embodiment is a random copolymer block containing styrene monomer units, butadiene monomer units, etc. (hereinafter simply referred to as "random copolymer block"). there is). By randomly arranging the styrene monomer units and the butadiene monomer units, etc., the self-cohesive force of the styrene monomer units in the thermoplastic elastomer molecular chain is reduced, thereby improving the thermoplastic elastomer. It is assumed that flexibility is improved. For the same reason, it is presumed that a microphase-separated structure with the thermosetting resin (B) is more likely to be formed, thereby achieving the effects of improving the appearance of the cured product and reducing the CTE.
Random copolymerization means that the arrangement of monomer units is disordered. In a random copolymer block, styrene monomer units, butadiene monomer units, etc. are randomly copolymerized.
The thermoplastic elastomer (A) used in the present embodiment includes, in addition to the styrene monomer units and random copolymer blocks such as butadiene monomer units, polymer blocks mainly composed of styrene monomer units, and/or , butadiene monomer units and the like may have polymer blocks. Here, "mainly" means that, in the case of a polymer block mainly composed of styrene monomer units, the proportion of styrene monomer units in the polymer block is 60% by mass or more, preferably It is 70% by mass or more, more preferably 80% by mass or more, still more preferably 90% by mass or more, and still more preferably 95% by mass or more. The same applies to polymer blocks mainly composed of butadiene monomer units.
In the thermoplastic elastomer (A) used in the present embodiment, the total amount of styrene monomer units, butadiene monomer units, etc. is preferably 90% by mass or more, more preferably 95% by mass or more, of the total monomer units. is more preferably 97% by mass or more, and even more preferably 99% by mass or more.
本実施形態の樹脂組成物が2種以上の熱可塑性エラストマー(A)を含む場合、それらの混合物の数平均分子量が上記範囲を満たすことが好ましい。 The number average molecular weight of the thermoplastic elastomer (A) used in this embodiment is 50,000 or more. By making it 50,000 or more, there is a tendency that the appearance, low CTE, and crack resistance of the cured product are further improved. The number average molecular weight is preferably 70,000 or more, more preferably 110,000 or more, even more preferably 130,000 or more, furthermore 160,000 or more, 180,000 or more may be The upper limit of the number average molecular weight of the thermoplastic elastomer (A) is preferably 300,000 or less, more preferably 280,000 or less, even more preferably 260,000 or less. By making it below the said upper limit, there exists a tendency for compatibility with a thermosetting compound (B) to improve more.
When the resin composition of the present embodiment contains two or more thermoplastic elastomers (A), the number average molecular weight of the mixture thereof preferably satisfies the above range.
本実施形態の樹脂組成物が2種以上の熱可塑性エラストマー(A)を含む場合、熱可塑性エラストマー(A)ガラス転移温度は、各熱可塑性エラストマー(A)のガラス転移温度に、質量分率をかけた値の和とする(ただし、各熱可塑性エラストマー(A)のガラス転移温度は、-20℃~30℃の範囲内である。)。例えば、ガラス転移温度0℃の熱可塑性エラストマー(A)を30質量%と、ガラス転移温度10℃の熱可塑性エラストマー(A)70質量%をブレンドした場合、0×0.3+10×0.7=7℃とする。 The thermoplastic elastomer (A) used in the present embodiment preferably has a glass transition temperature (Tan δ) of -20°C to 30°C as measured according to JIS K 7244-1:1996. By making it more than the said lower limit, there exists a tendency for the heat resistance of a resin composition and the hardened|cured material obtained to improve more. Further, when the content is set to the above upper limit or less, the flexibility, low dielectric loss tangent property, and crack resistance of the resin composition and the resulting cured product tend to be further improved. The glass transition temperature is preferably −15° C. or higher, more preferably −12° C. or higher, and may be −5° C. or higher, or 0° C. or higher. °C or higher. The upper limit of the glass transition temperature is preferably 27° C. or lower, more preferably 25° C. or lower, and even more preferably 23° C. or lower.
When the resin composition of the present embodiment contains two or more thermoplastic elastomers (A), the thermoplastic elastomer (A) glass transition temperature is the glass transition temperature of each thermoplastic elastomer (A), and the mass fraction is (The glass transition temperature of each thermoplastic elastomer (A) is in the range of -20°C to 30°C.). For example, when 30% by mass of thermoplastic elastomer (A) having a glass transition temperature of 0° C. and 70% by mass of thermoplastic elastomer (A) having a glass transition temperature of 10° C. are blended, 0×0.3+10×0. Let 7=7°C.
本実施形態の樹脂組成物は、熱可塑性エラストマー(A)を1種のみ含んでいてもよいし、2種以上含んでいてもよい。2種以上含む場合、合計量が上記範囲となることが好ましい。 The content of the thermoplastic elastomer (A) in the resin composition of the present embodiment is preferably 1 part by mass or more, more preferably 2 parts by mass or more, with respect to 100 parts by mass of the resin solid content. It is more preferably at least 8 parts by mass, even more preferably at least 12 parts by mass, even more preferably at least 16 parts by mass, further preferably 20 parts by mass. parts or more, particularly preferably 25 parts by mass or more. When the content is at least the above lower limit, low dielectric loss tangent property, crack resistance, low thermal expansion property, especially low thermal expansion property tend to be further improved. In addition, the upper limit of the content of the thermoplastic elastomer (A) is preferably 40 parts by mass or less, more preferably 35 parts by mass or less, with respect to 100 parts by mass of the resin solid content. It may be 30 parts by mass or less, 25 parts by mass or less, 21 parts by mass or less, or 18 parts by mass or less depending on the application. When the content is equal to or less than the upper limit, the crack resistance tends to be further improved.
The resin composition of the present embodiment may contain only one type of thermoplastic elastomer (A), or may contain two or more types. When two or more types are included, the total amount is preferably within the above range.
本実施形態の樹脂組成物は、熱可塑性エラストマー(A)と相溶する熱硬化性樹脂(B)を含む。熱可塑性エラストマー(A)と相溶する熱硬化性樹脂(B)(以下、本明細書では、「相溶する熱硬化性樹脂(B)」、「熱硬化性樹脂(B)」ともいう)を含むことにより、低誘電特性および吸湿耐熱性の向上という効果が達成される。
ここで、相溶するとは、熱可塑性エラストマー(A)と熱硬化性樹脂(B)の両者を十分に混合し、静置したあと、粗大な分離を生じないことを意味し、通常は目視のよって、観察することができる。
前記相溶する熱硬化性樹脂(B)は、芳香環とビニル基を含む熱硬化性樹脂であることが好ましい。このような樹脂を用いることにより、熱可塑性エラストマー(A)に含まれるスチレン単量体単位となじみやすく、相溶性がより向上する傾向にある。
前記相溶する熱硬化性樹脂(B)の分子量は、数平均分子量Mnで、300以上であることが好ましく、500以上であることがより好ましく、1,000以上であることがさらに好ましく、1,500以上であってもよい。上限としては、130,000以下であることが好ましく、120,000以下であることがより好ましく、110,000以下であることがさらに好ましく、100,000以下であることがさらに好ましい。2種以上の熱硬化性樹脂(B)を含む場合、混合物の数平均分子量が上記範囲となることが好ましい。 <Thermosetting resin (B) compatible with thermoplastic elastomer (A)>
The resin composition of the present embodiment contains a thermosetting resin (B) compatible with the thermoplastic elastomer (A). A thermosetting resin (B) compatible with the thermoplastic elastomer (A) (hereinafter also referred to as "compatible thermosetting resin (B)" or "thermosetting resin (B)" in this specification) By including, the effects of low dielectric properties and improved moisture absorption and heat resistance are achieved.
Here, the term "compatibility" means that the thermoplastic elastomer (A) and the thermosetting resin (B) are sufficiently mixed and allowed to stand, and then coarse separation does not occur. Therefore, it can be observed.
The compatible thermosetting resin (B) is preferably a thermosetting resin containing an aromatic ring and a vinyl group. By using such a resin, it tends to be compatible with the styrene monomer units contained in the thermoplastic elastomer (A), and the compatibility tends to be further improved.
The compatible thermosetting resin (B) has a number average molecular weight Mn of preferably 300 or more, more preferably 500 or more, even more preferably 1,000 or more. , 500 or more. The upper limit is preferably 130,000 or less, more preferably 120,000 or less, even more preferably 110,000 or less, even more preferably 100,000 or less. When two or more thermosetting resins (B) are included, the number average molecular weight of the mixture is preferably within the above range.
さらには、前記相溶する熱硬化性樹脂(B)は、酸基および酸無水物基を有する化合物由来の構成単位を含んでいてもよい。 The compatible thermosetting resin (B) may also contain structural units derived from maleic anhydride. Details of such resins can be referred to in International Publication No. 2017/209108, the content of which is incorporated herein.
Furthermore, the compatible thermosetting resin (B) may contain a structural unit derived from a compound having an acid group and an acid anhydride group.
前記相溶する熱硬化性樹脂(B)は、樹脂組成物中に、1種のみ含まれていても、2種以上含まれていてもよい。2種以上含まれる場合は、合計量が上記範囲となることが好ましい。 In the resin composition of the present embodiment, the content of the compatible thermosetting resin (B) is preferably 10 to 90 parts by mass when the resin solid content in the resin composition is 100 parts by mass. . The lower limit of the content of the compatible thermosetting resin (B) is preferably 15 parts by mass or more, and 20 parts by mass or more when the resin solid content in the resin composition is 100 parts by mass. more preferably 25 parts by mass or more. By setting the content of the compatible thermosetting resin (B) to the above lower limit or more, low dielectric properties, particularly low dielectric loss tangent, can be effectively achieved. On the other hand, the upper limit of the content of the compatible thermosetting resin (B) is preferably 80 parts by mass or less, and 60 parts by mass when the resin solid content in the resin composition is 100 parts by mass. or less, more preferably 50 parts by mass or less, and even more preferably 40 parts by mass or less. By making it equal to or less than the upper limit, the metal foil peel strength of the resulting cured product can be effectively increased.
The compatible thermosetting resin (B) may be contained alone or in combination of two or more in the resin composition. When two or more types are included, the total amount is preferably within the above range.
本実施形態の樹脂組成物は、式(V)で表される構成単位を有する重合体を含むことが好ましい。式(V)で表される構成単位を有する重合体を含むことにより、より低誘電特性(低誘電率、低誘電正接)に優れた樹脂組成物が得られる。
芳香族炭化水素連結基とは、置換基を有していてもよい芳香族炭化水素のみからなる基であってもよいし、置換基を有していてもよい芳香族炭化水素と他の連結基の組み合わせからなる基であってもよく、置換基を有していてもよい芳香族炭化水素のみからなる基であることが好ましい。なお、芳香族炭化水素が有していてもよい置換基は、置換基Z(例えば、炭素数1~6のアルキル基、炭素数2~6のアルケニル基、炭素数2~6のアルキニル基、炭素数1~6のアルコキシ基、ヒドロキシ基、アミノ基、カルボキシ基、ハロゲン原子等)が挙げられる。また、上記芳香族炭化水素は、置換基を有さない方が好ましい。
芳香族炭化水素連結基は、通常、2価の連結基である。 <<Polymer having a structural unit represented by formula (V)>>
The resin composition of the present embodiment preferably contains a polymer having a structural unit represented by formula (V). By containing the polymer having the structural unit represented by the formula (V), a resin composition having excellent low dielectric properties (low dielectric constant, low dielectric loss tangent) can be obtained.
The aromatic hydrocarbon linking group may be a group consisting only of an optionally substituted aromatic hydrocarbon, or may be a group consisting of an optionally substituted aromatic hydrocarbon and another linking group. It may be a group consisting of a combination of groups, and is preferably a group consisting only of an optionally substituted aromatic hydrocarbon. The substituent that the aromatic hydrocarbon may have is a substituent Z (e.g., an alkyl group having 1 to 6 carbon atoms, an alkenyl group having 2 to 6 carbon atoms, an alkynyl group having 2 to 6 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, a hydroxy group, an amino group, a carboxy group, a halogen atom, etc.). Further, the aromatic hydrocarbon preferably has no substituents.
The aromatic hydrocarbon linking group is generally a divalent linking group.
構成単位(a)を形成する化合物としては、ジビニル芳香族化合物であることが好ましく、例えば、ジビニルベンゼン、ビス(1-メチルビニル)ベンゼン、ジビニルナフタレン、ジビニルアントラセン、ジビニルビフェニル、ジビニルフェナントレンなどが挙げられる。中でもジビニルベンゼンが特に好ましい。これらのジビニル芳香族化合物は、1種を用いてもよく、必要に応じて2種以上を用いてもよい。
The compound forming the structural unit (a) is preferably a divinyl aromatic compound, and examples thereof include divinylbenzene, bis(1-methylvinyl)benzene, divinylnaphthalene, divinylanthracene, divinylbiphenyl, and divinylphenanthrene. be done. Among them, divinylbenzene is particularly preferred. One type of these divinyl aromatic compounds may be used, or two or more types may be used as necessary.
式(V)で表される構成単位を有する重合体は、共重合体であるとき、その共重合比は、構成単位(a)が5モル%以上であることが好ましく、10モル%以上であることがより好ましく、15モル%以上であることがさらに好ましい。上限値としては、90モル%以下であることが好ましく、85モル%以下であることがより好ましく、80モル%以下であることがさらに好ましく、70モル%以下であることが一層好ましく、60モル%以下であることがより好ましく、50モル%以下であることがさらに一層好ましく、40モル%以下であることがさらによりさらに一層好ましく、30モル%以下であることが特に一層好ましく、25モル%以下であってもよい。 As described above, the polymer having the structural unit represented by formula (V) may be a homopolymer of the structural unit (a), or may be a copolymer with a structural unit derived from another monomer. may
When the polymer having the structural unit represented by formula (V) is a copolymer, the copolymerization ratio of the structural unit (a) is preferably 5 mol% or more, and preferably 10 mol% or more. more preferably 15 mol % or more. The upper limit is preferably 90 mol% or less, more preferably 85 mol% or less, even more preferably 80 mol% or less, even more preferably 70 mol% or less, and 60 mol%. % or less, even more preferably 50 mol% or less, even more preferably 40 mol% or less, even more preferably 30 mol% or less, and 25 mol% or less. It may be below.
RV1は水素原子または炭素数1~12の炭化水素基(好ましくはアルキル基)である。RV1が炭化水素基であるとき、その炭素数は1~6が好ましく、1~3がより好ましい。RV1およびL2は上述の置換基Zを有していてもよい。
R V1 is a hydrogen atom or a hydrocarbon group having 1 to 12 carbon atoms (preferably an alkyl group). When R V1 is a hydrocarbon group, it preferably has 1 to 6 carbon atoms, more preferably 1 to 3 carbon atoms. R V1 and L 2 may have the substituent Z described above.
式(V)で表される構成単位を有する重合体の他の一実施形態として、構成単位(a)を必須とし、末端を除く全構成単位のうち、芳香族環を含む構成単位が90モル%以上のものであることが好ましく、95モル%以上のものであることがより好ましく、100モル%のものであってもよい。
なお、全構成単位当たりのモル%を算出するにあたり、1つの構成単位とは、式(V)で表される構成単位を有する重合体の製造に使用する単量体(例えば、ジビニル芳香族化合物、モノビニル芳香族化合物など)1分子に由来するものとする。 As one embodiment of the polymer having a structural unit represented by formula (V), a polymer essentially containing the structural unit (a) and containing at least one of the structural units (b) to (d) is exemplified. . Furthermore, an embodiment is exemplified in which the total of structural units (a) to (d) accounts for 95 mol% or more, further 98 mol% or more of all structural units.
As another embodiment of the polymer having a structural unit represented by formula (V), the structural unit (a) is essential, and 90 mol of structural units containing an aromatic ring are included in all structural units excluding terminals. % or more, more preferably 95 mol % or more, and may be 100 mol %.
In calculating mol % per all structural units, one structural unit is a monomer used for producing a polymer having a structural unit represented by formula (V) (for example, a divinyl aromatic compound , monovinyl aromatic compounds, etc.).
*-CH=CH-L1-CH=CH2 (E1) The structure of the chain end of the polymer having the structural unit represented by the formula (V) is not particularly limited, but the group derived from the divinyl aromatic compound may have the structure of the following formula (E1). mentioned. Note that L1 in formula (E1) is the same as defined in formula (V1) above. * represents a binding position.
*-CH=CH-L 1 -CH=CH 2 (E1)
*-CH=CH-L2-RV1 (E2) When the group derived from the monovinyl aromatic compound becomes the chain terminal, the structure of the following formula (E2) is taken. L 2 and R V1 in the formula have the same meanings as defined in the formula (V4) above. * represents a binding position.
*-CH=CH-L 2 -R V1 (E2)
式(V)で表される構成単位を有する重合体の分子量は、重量平均分子量Mwで、1,000以上であることが好ましく、2,000以上であることがより好ましく、3,000以上であることがさらに好ましい。前記下限値以上とすることにより、式(V)で表される構成単位を有する重合体が持つ優れた低誘電特性、特にDfや吸湿後の誘電特性を、樹脂組成物の硬化物に効果的に発揮させることができる。重量平均分子量Mwの上限としては160,000以下であることが好ましく、150,000以下であることがより好ましく、140,000以下であることがさらに好ましく、130,000以下であることが一層好ましい。前記上限値以下とすることにより、プリプレグもしくは樹脂シートを回路形成基板に積層した際、埋め込み不良が起こりにくい傾向にある。
重量平均分子量Mwと数平均分子量Mnの比で表される単分散度(Mw/Mn)は、100以下であることが好ましく、50以下であることがより好ましく、20以下であることがさらに好ましい。単分散度の下限値としては、1.1以上であることが実際的であり、10以上であっても要求性能を満たすものである。
上記MwおよびMnは後述する実施例の記載に従って測定される。
本実施形態の樹脂組成物が式(V)で表される構成単位を有する重合体を2種以上含む場合、混合物のMw、MnならびにMw/Mnが上記範囲を満たすことが好ましい。 The molecular weight of the polymer having the structural unit represented by the formula (V), in terms of number average molecular weight Mn, is preferably 300 or more, more preferably 500 or more, and further preferably 1,000 or more. It is preferably 1,500 or more, and more preferably 1,500 or more. The upper limit of the number average molecular weight Mn is preferably 130,000 or less, more preferably 120,000 or less, even more preferably 110,000 or less, and further preferably 100,000 or less. preferable.
The weight-average molecular weight Mw of the polymer having the structural unit represented by formula (V) is preferably 1,000 or more, more preferably 2,000 or more, and 3,000 or more. It is even more preferable to have By setting it to the above lower limit or more, the excellent low dielectric properties of the polymer having the structural unit represented by the formula (V), especially Df and dielectric properties after moisture absorption, are effectively applied to the cured product of the resin composition. can be exhibited. The upper limit of the weight average molecular weight Mw is preferably 160,000 or less, more preferably 150,000 or less, even more preferably 140,000 or less, and even more preferably 130,000 or less. . When the thickness is equal to or less than the above upper limit, there is a tendency that poor embedding is less likely to occur when the prepreg or resin sheet is laminated on the circuit board.
The monodispersity (Mw/Mn) represented by the ratio of the weight average molecular weight Mw to the number average molecular weight Mn is preferably 100 or less, more preferably 50 or less, and even more preferably 20 or less. . It is practical that the lower limit of the monodispersity is 1.1 or more, and even if it is 10 or more, the required performance is satisfied.
The above Mw and Mn are measured according to the description of Examples described later.
When the resin composition of the present embodiment contains two or more polymers having structural units represented by formula (V), the Mw, Mn and Mw/Mn of the mixture preferably satisfy the above ranges.
誘電正接(Df)は、後述する実施例に記載の方法に従って測定される。比誘電率(Dk)も実施例のDfの測定方法に準じて測定される。 Moreover, it is preferable that the cured product of the polymer having the structural unit represented by the formula (V) used in the present embodiment has excellent dielectric properties. For example, the cured polymer having the structural unit represented by the formula (V) used in the present embodiment has a dielectric constant (Dk) of 2.80 or less at 10 GHz measured according to the cavity resonator perturbation method. is preferably 2.60 or less, more preferably 2.50 or less, and even more preferably 2.40 or less. Moreover, the lower limit of the dielectric constant is practically 1.80 or more, for example. Further, the cured product of the polymer having the structural unit represented by the formula (V) used in the present embodiment has a dielectric loss tangent (Df) at 10 GHz measured according to the cavity resonator perturbation method of 0.0030 or less. It is preferably 0.0020 or less, more preferably 0.0010 or less. Moreover, the lower limit value of the dielectric loss tangent is practically 0.0001 or more, for example.
The dielectric loss tangent (Df) is measured according to the method described in Examples below. The dielectric constant (Dk) is also measured according to the method for measuring Df in Examples.
式(V)で表される構成単位を有する重合体は、樹脂組成物中に、1種のみ含まれていても、2種以上含まれていてもよい。2種以上含まれる場合は、合計量が上記範囲となることが好ましい。 When the resin composition of the present embodiment contains a polymer having a structural unit represented by formula (V), when the resin solid content in the resin composition is 100 parts by mass, it is represented by formula (V) It is preferable that the content of the polymer having the structural unit is 5 to 50 parts by mass. The lower limit of the content of the polymer having the structural unit represented by formula (V) is preferably 10 parts by mass or more, preferably 15 parts by mass, when the resin solid content in the resin composition is 100 parts by mass. It is more preferably 20 parts by mass or more, or 25 parts by mass or more. By setting the content of the polymer having the structural unit represented by formula (V) to the above lower limit or more, low dielectric properties, particularly low dielectric loss tangent, can be effectively achieved. On the other hand, the upper limit of the content of the polymer having the structural unit represented by formula (V) is preferably 45 parts by mass or less when the resin solid content in the resin composition is 100 parts by mass. It is more preferably 40 parts by mass or less, and even more preferably 35 parts by mass or less. Moreover, the metal foil peel strength of the obtained hardened|cured material can be improved effectively by making it below the said upper limit.
The polymer having the structural unit represented by formula (V) may be contained in the resin composition either singly or in combination of two or more. When two or more types are included, the total amount is preferably within the above range.
本実施形態の樹脂組成物は、末端に炭素-炭素不飽和二重結合を有するポリフェニレンエーテル化合物を含んでいてもよい。
末端に炭素-炭素不飽和二重結合を有するポリフェニレンエーテル化合物は、末端に、(メタ)アクリル基、マレイミド基、ビニルベンジル基からなる群から選ばれる基を有するポリフェニレンエーテル化合物であることが好ましい。また、末端に炭素-炭素不飽和二重結合を有するポリフェニレンエーテル化合物は、末端に2つ以上の炭素-炭素不飽和二重結合を有するポリフェニレンエーテル化合物であることが好ましい。これらのポリフェニレンエーテル化合物を用いることによりプリント配線板の低誘電特性をより効果的に向上させることができる傾向がある。
以下、これらの詳細を説明する。 <<Polyphenylene ether compound having a carbon-carbon unsaturated double bond at the end>>
The resin composition of the present embodiment may contain a polyphenylene ether compound having a carbon-carbon unsaturated double bond at its terminal.
The polyphenylene ether compound having a carbon-carbon unsaturated double bond at the terminal is preferably a polyphenylene ether compound having a group selected from the group consisting of a (meth)acrylic group, a maleimide group and a vinylbenzyl group at the terminal. Moreover, the polyphenylene ether compound having a carbon-carbon unsaturated double bond at the terminal is preferably a polyphenylene ether compound having two or more carbon-carbon unsaturated double bonds at the terminal. The use of these polyphenylene ether compounds tends to improve the low dielectric properties of printed wiring boards more effectively.
These will be described in detail below.
で表される繰り返し単位、および/または、式(X3):
and/or the formula (X3):
n2および/またはn3が2以上の整数の場合、n2個の構成単位(Y-O)および/またはn3個の構成単位は、それぞれ同一であっても異なっていてもよい。n3は、2以上が好ましく、より好ましくは2である。 Modified polyphenylene ether compounds (g) include compounds represented by formula (OP-1).
When n 2 and/or n 3 is an integer of 2 or more, n 2 structural units (YO) and/or n 3 structural units may be the same or different. n3 is preferably 2 or more, more preferably 2.
および/または式(OP-4):
and/or formula (OP-4):
式(OP-2)において、a、bは、少なくともいずれか一方が0でない、0~100の整数を表し、0~50の整数であることが好ましく、1~30の整数であることがより好ましい。aおよび/またはbが2以上の整数の場合、2以上の-(Y-O)-は、それぞれ独立に、1種の構造が配列したものであってよく、2種以上の構造がブロックまたはランダムに配列していてもよい。 Further, -(Y-O)- is the formula (OP-5):
In formula (OP-2), a and b represent an integer of 0 to 100, at least one of which is not 0, preferably an integer of 0 to 50, more preferably an integer of 1 to 30 preferable. When a and / or b is an integer of 2 or more, 2 or more -(Y-O)- may each independently be an arrangement of one structure, and two or more structures may be block or They may be arranged randomly.
-B-は、式(OP-4)における-A-の具体例と同じものが具体例として挙げられる。
-B-は、式(OP-4)における-A-の具体例と同じものが具体例として挙げられる。
Specific examples of -B- are the same as the specific examples of -A- in formula (OP-4).
Specific examples of -B- are the same as the specific examples of -A- in formula (OP-4).
また、末端に炭素-炭素不飽和二重結合を有するポリフェニレンエーテル化合物(好ましくは、変性ポリフェニレンエーテル化合物(g))のGPCによるポリスチレン換算の重量平均分子量(詳細は後述する実施例に記載の方法に従う)は、800以上10,000以下であることが好ましく、800以上5,000以下であることがより好ましい。前記下限値以上とすることにより、樹脂組成物の硬化物の比誘電率(Dk)および誘電正接(Df)がより低くなる傾向にあり、上記上限値以下とすることにより、後述するワニス等を作製する際の溶剤への樹脂組成物の溶解性、低粘度性および成形性がより向上する傾向にある。
さらに、変性ポリフェニレンエーテル化合物(g)である場合の、末端の炭素-炭素不飽和二重結合当量は、炭素-炭素不飽和二重結合1つあたり400~5000gであることが好ましく、400~2500gであることがより好ましい。前記下限値以上とすることにより、樹脂組成物の硬化物の比誘電率(Dk)および誘電正接(Df)がより低くなる傾向にある。上記上限値以下とすることにより、溶剤への樹脂組成物の溶解性、低粘度性および成形性がより向上する傾向にある。 Polyphenylene ether compound having a carbon-carbon unsaturated double bond at the end (preferably, modified polyphenylene ether compound (g)) by GPC (gel permeation chromatography) method polystyrene equivalent number average molecular weight (details will be described later Examples according to the method described in ) is preferably 500 or more and 3,000 or less. When the number average molecular weight is 500 or more, stickiness tends to be further suppressed when the resin composition of the present embodiment is formed into a coating film. Further, when the number average molecular weight is 3,000 or less, the solubility in solvents tends to be further improved.
In addition, the polyphenylene ether compound having a carbon-carbon unsaturated double bond at the end (preferably, the modified polyphenylene ether compound (g)) weight average molecular weight in terms of polystyrene by GPC (details follow the method described in the Examples described later) ) is preferably 800 or more and 10,000 or less, more preferably 800 or more and 5,000 or less. By setting it to the above lower limit or more, the dielectric constant (Dk) and dielectric loss tangent (Df) of the cured product of the resin composition tend to be lower, and by setting it to the above upper limit or less, the varnish or the like described later can be reduced. There is a tendency that the solubility, low viscosity, and moldability of the resin composition in a solvent during production are further improved.
Furthermore, in the case of the modified polyphenylene ether compound (g), the terminal carbon-carbon unsaturated double bond equivalent is preferably 400 to 5000 g per carbon-carbon unsaturated double bond, and 400 to 2500 g. is more preferable. When the content is at least the lower limit, the cured product of the resin composition tends to have a lower dielectric constant (Dk) and dielectric loss tangent (Df). By adjusting the content to the above upper limit or less, the solubility of the resin composition in a solvent, the low viscosity property, and the moldability tend to be further improved.
本実施形態における樹脂組成物は、末端に炭素-炭素不飽和二重結合を有するポリフェニレンエーテル化合物を1種のみ含んでいてもよいし、2種以上含んでいてもよい。2種以上含む場合、合計量が上記範囲となることが好ましい。 When the resin composition of the present embodiment contains a polyphenylene ether compound having a carbon-carbon unsaturated double bond at the terminal, the lower limit of the content of the polyphenylene ether compound having a carbon-carbon unsaturated double bond at the terminal is , With respect to 100 parts by mass of the resin solid content in the resin composition, it is preferably 1 part by mass or more, more preferably 5 parts by mass or more, further preferably 10 parts by mass or more, 15 parts by mass It is more preferably 20 parts by mass or more, and even more preferably 25 parts by mass or more. When the content is at least the above lower limit, the resulting cured product tends to have improved low water absorption and low dielectric properties (Dk and/or Df). In addition, the upper limit of the content of the polyphenylene ether compound having a carbon-carbon unsaturated double bond at the end is preferably 70 parts by mass or less with respect to 100 parts by mass of the resin solid content in the resin composition. It is more preferably 50 parts by mass or less, even more preferably 40 parts by mass or less, and may be 35 parts by mass or less. By setting the amount to the above upper limit or less, the copper foil peel strength of the obtained cured product tends to be further improved.
The resin composition in the present embodiment may contain only one type of polyphenylene ether compound having a carbon-carbon unsaturated double bond at the terminal, or may contain two or more types. When two or more types are included, the total amount is preferably within the above range.
本実施形態の樹脂組成物は、さらに、他の樹脂(C)を含んでいてもよい。他の樹脂(C)としては、マレイミド化合物、シアン酸エステル化合物、エポキシ化合物、フェノール化合物、アルケニル置換ナジイミド化合物、オキセタン樹脂、および、ベンゾオキサジン化合物からなる群より選択される1種以上を含むことが好ましく、シアン酸エステル化合物、マレイミド化合物、および、エポキシ化合物からなる群より選択される1種以上を含むことがより好ましい。これらの他の樹脂(C)は、1種を単独で用いても、2種以上を併用してもよい。このような他の樹脂(C)は、本発明の効果を達成するために必ずしも必須の成分ではないが、これらの成分を配合することにより、樹脂組成物ないし硬化物に各種物性を付与したり、樹脂組成物ないし硬化物の誘電特性や吸湿耐熱性等をさらに向上させることができる。 <Other resin (C)>
The resin composition of this embodiment may further contain another resin (C). Other resins (C) may include one or more selected from the group consisting of maleimide compounds, cyanate ester compounds, epoxy compounds, phenol compounds, alkenyl-substituted nadimide compounds, oxetane resins, and benzoxazine compounds. More preferably, it contains one or more selected from the group consisting of cyanate ester compounds, maleimide compounds, and epoxy compounds. These other resins (C) may be used alone or in combination of two or more. Such other resin (C) is not necessarily an essential component for achieving the effect of the present invention, but by blending these components, various physical properties can be imparted to the resin composition or cured product. , the dielectric properties, moisture absorption and heat resistance of the resin composition or cured product can be further improved.
本実施形態の樹脂組成物は、シアン酸エステル化合物を含んでいてもよい。
シアン酸エステル化合物は、シアネート基(シアナト基)を1分子内に1以上(好ましくは2~12、より好ましくは2~6、さらに好ましくは2~4、一層好ましくは2または3、より一層好ましくは2)含む化合物であれば特に限定されず、プリント配線板の分野で通常用いられる化合物を広く用いることができる。また、シアン酸エステル化合物は、シアネート基が芳香族骨格(芳香族環)に直接結合している化合物であることが好ましい。
シアン酸エステル化合物としては、例えば、フェノールノボラック型シアン酸エステル化合物、ナフトールアラルキル型シアン酸エステル化合物(ナフトールアラルキル型シアネート)、ナフチレンエーテル型シアン酸エステル化合物、ビフェニルアラルキル型シアン酸エステル化合物、キシレン樹脂型シアン酸エステル化合物、トリスフェノールメタン型シアン酸エステル化合物、アダマンタン骨格型シアン酸エステル化合物、ビスフェノールM型シアン酸エステル化合物、ビスフェノールA型シアン酸エステル化合物、およびジアリルビスフェノールA型シアン酸エステル化合物からなる群より選択される少なくとも1種が挙げられる。これらの中でも、得られる硬化物の低吸水性をより一層向上させる観点から、フェノールノボラック型シアン酸エステル化合物、ナフトールアラルキル型シアン酸エステル化合物、ナフチレンエーテル型シアン酸エステル化合物、キシレン樹脂型シアン酸エステル化合物、ビスフェノールM型シアン酸エステル化合物、ビスフェノールA型シアン酸エステル化合物、およびジアリルビスフェノールA型シアン酸エステル化合物からなる群より選択される少なくとも1種であることが好ましく、ナフトールアラルキル型シアン酸エステル化合物であることがより好ましい。これらのシアン酸エステル化合物は、公知の方法により調製してもよく、市販品を用いてもよい。なお、ナフトールアラルキル骨格、ナフチレンエーテル骨格、キシレン骨格、トリスフェノールメタン骨格、またはアダマンタン骨格を有するシアン酸エステル化合物は、比較的、官能基当量数が大きく、未反応のシアン酸エステル基が少なくなるため、これらを用いた樹脂組成物の硬化物は低吸水性がより一層優れる傾向にある。また、芳香族骨格またはアダマンタン骨格を有することに主に起因して、めっき密着性がより一層向上する傾向にある。 <<cyanate ester compound>>
The resin composition of the present embodiment may contain a cyanate ester compound.
The cyanate ester compound has 1 or more cyanate groups (cyanato groups) per molecule (preferably 2 to 12, more preferably 2 to 6, still more preferably 2 to 4, more preferably 2 or 3, still more preferably is not particularly limited as long as it is a compound containing 2), and a wide range of compounds commonly used in the field of printed wiring boards can be used. Moreover, the cyanate ester compound is preferably a compound in which a cyanate group is directly bonded to an aromatic skeleton (aromatic ring).
Examples of the cyanate ester compounds include phenol novolak-type cyanate ester compounds, naphthol aralkyl-type cyanate ester compounds (naphthol aralkyl-type cyanates), naphthylene ether-type cyanate ester compounds, biphenyl aralkyl-type cyanate ester compounds, and xylene resins. type cyanate ester compound, trisphenolmethane type cyanate ester compound, adamantane skeleton type cyanate ester compound, bisphenol M type cyanate ester compound, bisphenol A type cyanate ester compound, and diallylbisphenol A type cyanate ester compound At least one selected from the group is included. Among these, from the viewpoint of further improving the low water absorption of the resulting cured product, phenol novolac type cyanate ester compounds, naphthol aralkyl type cyanate ester compounds, naphthylene ether type cyanate ester compounds, xylene resin type cyanic acid It is preferably at least one selected from the group consisting of an ester compound, a bisphenol M-type cyanate compound, a bisphenol A-type cyanate compound, and a diallyl bisphenol A-type cyanate compound, and a naphthol aralkyl-type cyanate ester. Compounds are more preferred. These cyanate ester compounds may be prepared by known methods, or commercially available products may be used. A cyanate ester compound having a naphthol aralkyl skeleton, a naphthylene ether skeleton, a xylene skeleton, a trisphenolmethane skeleton, or an adamantane skeleton has a relatively large number of functional group equivalents, and the number of unreacted cyanate ester groups is small. Therefore, a cured product of a resin composition using these tends to be even more excellent in low water absorption. Also, mainly due to having an aromatic skeleton or adamantane skeleton, the plating adhesion tends to be further improved.
本実施形態における樹脂組成物は、シアン酸エステル化合物を1種のみ含んでいてもよいし、2種以上含んでいてもよい。2種以上含む場合、合計量が上記範囲となることが好ましい。 The resin composition of the present embodiment preferably contains a cyanate ester compound within a range that does not impair the effects of the present invention. When the resin composition of the present embodiment contains a cyanate ester compound, the lower limit of the content is preferably 0.1 parts by mass or more with respect to 100 parts by mass of the resin solid content in the resin composition. , more preferably 2 parts by mass or more, more preferably 5 parts by mass or more, and may be 7 parts by mass or more. When the content of the cyanate ester compound is 0.1 part by mass or more, the heat resistance, combustion resistance, chemical resistance, low dielectric constant, low dielectric loss tangent, and insulation properties of the obtained cured product are improved. There is a tendency. When the resin composition of the present embodiment contains a cyanate ester compound, the upper limit of the content of the cyanate ester compound is 70 parts by mass or less with respect to 100 parts by mass of the resin solid content in the resin composition. Preferably, it is 50 parts by mass or less, more preferably 40 parts by mass or less, even more preferably 30 parts by mass or less, even more preferably 20 parts by mass or less, and 15 parts by mass. The following are even more preferred.
The resin composition in the present embodiment may contain only one type of cyanate ester compound, or may contain two or more types. When two or more types are included, the total amount is preferably within the above range.
本実施形態の樹脂組成物は、マレイミド化合物を含んでいてもよい。本実施形態の樹脂組成物は、1分子中に1以上(好ましくは2~12、より好ましくは2~6、さらに好ましくは2~4、一層好ましくは2または3、より一層好ましくは2)のマレイミド基を有する化合物であれば特に限定されず、プリント配線板の分野で通常用いられる化合物を広く用いることができる。
本実施形態においては、マレイミド化合物は、式(M0)で表される化合物、式(M1)で表される化合物、式(M2)で表される化合物、式(M3)で表される化合物、式(M4)で表される化合物、および、式(M5)で表される化合物からなる群より選択される1種以上を含むことが好ましく、式(M0)で表される化合物、式(M1)で表される化合物、式(M3)で表される化合物、式(M4)で表される化合物、および、式(M5)で表される化合物からなる群より選択される1種以上を含むことがより好ましく、式(M1)で表される化合物、式(M3)で表される化合物、および、式(M5)で表される化合物からなる群より選択される1種以上を含むことがさらに好ましく、式(M1)で表される化合物および/または式(M3)で表される化合物を含むことがより一層好ましい。これらのマレイミド化合物を、プリント配線板用材料(例えば、金属箔張積層板)等に用いると、優れた耐熱性を付与できる。
R51は、それぞれ独立に、水素原子、メチル基、エチル基、n-プロピル基、イソプロピル基、n-ブチル基、イソブチル基、t-ブチル基、n-ペンチル基、およびフェニル基からなる群より選択される1種であることが好ましく、水素原子および/またはメチル基あることがより好ましく、水素原子であることがさらに好ましい。
R52は、メチル基であることが好ましい。
n1は1~10の整数が好ましく、1~5の整数がより好ましく、1~3の整数がさらに好ましく、1または2であることが一層好ましく、1であることがより一層好ましい。
具体的には、以下の化合物が式(M0)の好ましい例として挙げられる。
The resin composition of this embodiment may contain a maleimide compound. The resin composition of the present embodiment has 1 or more (preferably 2 to 12, more preferably 2 to 6, still more preferably 2 to 4, still more preferably 2 or 3, still more preferably 2) per molecule. The compound is not particularly limited as long as it has a maleimide group, and a wide range of compounds commonly used in the field of printed wiring boards can be used.
In the present embodiment, the maleimide compound is a compound represented by formula (M0), a compound represented by formula (M1), a compound represented by formula (M2), a compound represented by formula (M3), It preferably contains one or more selected from the group consisting of a compound represented by formula (M4) and a compound represented by formula (M5), and a compound represented by formula (M0), a compound represented by formula (M1 ), a compound represented by formula (M3), a compound represented by formula (M4), and one or more selected from the group consisting of a compound represented by formula (M5) More preferably, it contains one or more selected from the group consisting of a compound represented by formula (M1), a compound represented by formula (M3), and a compound represented by formula (M5). More preferably, it contains a compound represented by formula (M1) and/or a compound represented by formula (M3). When these maleimide compounds are used in materials for printed wiring boards (for example, metal foil-clad laminates), etc., excellent heat resistance can be imparted.
each R 51 is independently selected from the group consisting of a hydrogen atom, a methyl group, an ethyl group, an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a t-butyl group, an n-pentyl group, and a phenyl group; It is preferably one selected, more preferably a hydrogen atom and/or a methyl group, and even more preferably a hydrogen atom.
R 52 is preferably a methyl group.
n 1 is preferably an integer of 1 to 10, more preferably an integer of 1 to 5, even more preferably an integer of 1 to 3, more preferably 1 or 2, and even more preferably 1.
Specifically, the following compounds are preferred examples of formula (M0).
RM5およびRM6はそれぞれ独立に、水素原子またはアルキル基を表し、アルキル基が好ましい。ここでのアルキル基は、炭素数1~12のアルキル基が好ましく、炭素数1~6のアルキル基がより好ましく、メチル基、エチル基、プロピル基、ブチル基がさらに好ましく、中でもメチル基が特に好ましい。
ArMは2価の芳香族基を表し、好ましくはフェニレン基、ナフタレンジイル基、フェナントレンジイル基、アントラセンジイル基であり、より好ましくはフェニレン基であり、さらに好ましくはm-フェニレン基である。ArMは置換基を有していてもよく、置換基としては、アルキル基が好ましく、炭素数1~12のアルキル基がより好ましく、炭素数1~6のアルキル基がさらに好ましく、メチル基、エチル基、プロピル基、ブチル基が一層好ましく、メチル基が特に好ましい。しかしながら、ArMは無置換であることが好ましい。
Aは、4~6員環の脂環基であり、5員の脂環基(好ましくはベンゼン環と合せてインダン環となる基)がより好ましい。RM7およびRM8はそれぞれ独立に、アルキル基であり、炭素数1~6のアルキル基が好ましく、炭素数1~3のアルキル基がより好ましく、メチル基が特に好ましい。
mxは1または2であり、2であることが好ましい。
lxは0または1であり、1であることが好ましい。
RM9およびRM10はそれぞれ独立に、水素原子またはアルキル基を表し、アルキル基がより好ましい。ここでのアルキル基は、炭素数1~12のアルキル基が好ましく、炭素数1~6のアルキル基がより好ましく、メチル基、エチル基、プロピル基、ブチル基がさらに好ましく、中でもメチル基が特に好ましい。
RM11、RM12、RM13、およびRM14は、それぞれ独立に、水素原子または有機基を表す。ここでの有機基はアルキル基であることが好ましく、炭素数1~12のアルキル基がより好ましく、炭素数1~6のアルキル基がさらに好ましく、メチル基、エチル基、プロピル基、ブチル基が一層好ましく、中でもメチル基が特に好ましい。RM12およびRM13は、それぞれ独立に、アルキル基が好ましく、RM11およびRM14は、水素原子が好ましい。
RM15は、それぞれ独立に、炭素数1~10のアルキル基、炭素数1~10のアルキルオキシ基、炭素数1~10のアルキルチオ基、炭素数6~10のアリール基、炭素数1~10のアリールオキシ基、炭素数1~10のアリールチオ基、ハロゲン原子、水酸基またはメルカプト基を表し、炭素数1~4のアルキル基、炭素数3~6のシクロアルキル基、または、炭素数6~10のアリール基であることが好ましい。
pxは0~3の整数を表し、0~2の整数が好ましく、0または1がより好ましく、0がさらに好ましい。
nxは1~20の整数を表す。nxは10以下の整数であってもよい。
尚、本実施形態の樹脂組成物は、式(M1)で表される化合物であって、少なくともnxの値が異なる化合物を1種のみ含んでいてもよいし、2種以上含んでいてもよい。2種以上含む場合、樹脂組成物中の式(M1)で表される化合物におけるnxの平均値(平均繰返単位数)nは、低い融点(低軟化点)で、かつ溶融粘度が低く、ハンドリング性に優れたものとするため、0.92以上であることが好ましく、0.95以上であることがより好ましく、1.0以上であることがさらに好ましく、1.1以上であることが一層好ましい。また、nは、10.0以下であることが好ましく、8.0以下であることがより好ましく、7.0以下であることがさらに好ましく、6.0以下であることが一層好ましく、5.0以下であってもよい。後述する式(M1-1)等についても同様である。 R M1 , R M2 , R M3 and R M4 in the formula each independently represent a hydrogen atom or an organic group. The organic group here is preferably an alkyl group, more preferably an alkyl group having 1 to 12 carbon atoms, more preferably an alkyl group having 1 to 6 carbon atoms, a methyl group, an ethyl group, a propyl group, a butyl group. Among them, a methyl group is particularly preferred. R M1 and R M3 are each independently preferably an alkyl group, and R M2 and R M4 are preferably hydrogen atoms.
RM5 and RM6 each independently represent a hydrogen atom or an alkyl group, preferably an alkyl group. The alkyl group here is preferably an alkyl group having 1 to 12 carbon atoms, more preferably an alkyl group having 1 to 6 carbon atoms, more preferably a methyl group, an ethyl group, a propyl group, or a butyl group, and especially a methyl group. preferable.
Ar 1 M represents a divalent aromatic group, preferably a phenylene group, a naphthalenediyl group, a phenanthenediyl group or an anthracenediyl group, more preferably a phenylene group, still more preferably an m-phenylene group. Ar M may have a substituent, and the substituent is preferably an alkyl group, more preferably an alkyl group having 1 to 12 carbon atoms, more preferably an alkyl group having 1 to 6 carbon atoms, a methyl group, Ethyl group, propyl group and butyl group are more preferred, and methyl group is particularly preferred. However, it is preferred that Ar M is unsubstituted.
A is a 4- to 6-membered alicyclic group, more preferably a 5-membered alicyclic group (preferably a group forming an indane ring in combination with a benzene ring). R 1 M7 and R 1 M8 are each independently an alkyl group, preferably an alkyl group having 1 to 6 carbon atoms, more preferably an alkyl group having 1 to 3 carbon atoms, and particularly preferably a methyl group.
mx is 1 or 2, preferably 2;
lx is 0 or 1, preferably 1;
R M9 and R M10 each independently represent a hydrogen atom or an alkyl group, more preferably an alkyl group. The alkyl group here is preferably an alkyl group having 1 to 12 carbon atoms, more preferably an alkyl group having 1 to 6 carbon atoms, more preferably a methyl group, an ethyl group, a propyl group, or a butyl group, and especially a methyl group. preferable.
R M11 , R M12 , R M13 and R M14 each independently represent a hydrogen atom or an organic group. The organic group here is preferably an alkyl group, more preferably an alkyl group having 1 to 12 carbon atoms, more preferably an alkyl group having 1 to 6 carbon atoms, a methyl group, an ethyl group, a propyl group, a butyl group. Among them, a methyl group is particularly preferred. R M12 and R M13 are each independently preferably an alkyl group, and R M11 and R M14 are preferably hydrogen atoms.
R M15 each independently represents an alkyl group having 1 to 10 carbon atoms, an alkyloxy group having 1 to 10 carbon atoms, an alkylthio group having 1 to 10 carbon atoms, an aryl group having 6 to 10 carbon atoms, or an aryl group having 1 to 10 carbon atoms. aryloxy group, arylthio group having 1 to 10 carbon atoms, halogen atom, hydroxyl group or mercapto group, alkyl group having 1 to 4 carbon atoms, cycloalkyl group having 3 to 6 carbon atoms, or 6 to 10 carbon atoms is preferably an aryl group of
px represents an integer of 0 to 3, preferably an integer of 0 to 2, more preferably 0 or 1, and still more preferably 0.
nx represents an integer of 1-20. nx may be an integer of 10 or less.
In addition, the resin composition of the present embodiment may contain only one compound represented by the formula (M1) and having at least different nx values, or may contain two or more compounds. . When two or more types are included, the average value of nx (average number of repeating units) n in the compound represented by formula (M1) in the resin composition has a low melting point (low softening point) and a low melt viscosity, It is preferably 0.92 or more, more preferably 0.95 or more, still more preferably 1.0 or more, and 1.1 or more for excellent handling properties. More preferred. Also, n is preferably 10.0 or less, more preferably 8.0 or less, still more preferably 7.0 or less, and even more preferably 6.0 or less. It may be 0 or less. The same applies to formula (M1-1) and the like, which will be described later.
RM25およびRM26は、それぞれ独立に、水素原子またはアルキル基を表し、アルキル基が好ましい。ここでのアルキル基は、炭素数1~12のアルキル基が好ましく、炭素数1~6のアルキル基がより好ましく、メチル基、エチル基、プロピル基、ブチル基がさらに好ましく、中でもメチル基が特に好ましい。
RM27、RM28、RM29、およびRM30は、それぞれ独立に、水素原子または有機基を表し、水素原子が好ましい。ここでの有機基はアルキル基であることが好ましく、炭素数1~12のアルキル基がより好ましく、炭素数1~6のアルキル基がさらに好ましく、メチル基、エチル基、プロピル基、ブチル基が一層好ましく、メチル基が特に好ましい。
RM31およびRM32は、それぞれ独立に、水素原子またはアルキル基を表し、アルキル基が好ましい。ここでのアルキル基は、炭素数1~12のアルキル基が好ましく、炭素数1~6のアルキル基がより好ましく、メチル基、エチル基、プロピル基、ブチル基がさらに好ましく、中でもメチル基が特に好ましい。
RM33、RM34、RM35、およびRM36は、それぞれ独立に、水素原子または有機基を表す。ここでの有機基はアルキル基であることが好ましく、炭素数1~12のアルキル基がより好ましく、炭素数1~6のアルキル基がさらに好ましく、メチル基、エチル基、プロピル基、ブチル基が一層好ましく、メチル基が特に好ましい。
RM33およびRM36は、水素原子が好ましく、RM34およびRM35はアルキル基が好ましい。
RM37、RM38、およびRM39は、それぞれ独立に、水素原子またはアルキル基を表し、アルキル基が好ましい。ここでのアルキル基は、炭素数1~12のアルキル基が好ましく、炭素数1~6のアルキル基がより好ましく、メチル基、エチル基、プロピル基、ブチル基がさらに好ましく、中でもメチル基が特に好ましい。
nxは1以上20以下の整数を表す。nxは10以下の整数であってもよい。 R M21 , R M22 , R M23 , and R M24 in the formula each independently represent a hydrogen atom or an organic group. The organic group here is preferably an alkyl group, more preferably an alkyl group having 1 to 12 carbon atoms, more preferably an alkyl group having 1 to 6 carbon atoms, a methyl group, an ethyl group, a propyl group, a butyl group. More preferred, and a methyl group is particularly preferred. R M21 and R M23 are preferably alkyl groups, and R M22 and R M24 are preferably hydrogen atoms.
RM25 and RM26 each independently represent a hydrogen atom or an alkyl group, preferably an alkyl group. The alkyl group here is preferably an alkyl group having 1 to 12 carbon atoms, more preferably an alkyl group having 1 to 6 carbon atoms, more preferably a methyl group, an ethyl group, a propyl group, or a butyl group, and especially a methyl group. preferable.
R M27 , R M28 , R M29 and R M30 each independently represent a hydrogen atom or an organic group, preferably a hydrogen atom. The organic group here is preferably an alkyl group, more preferably an alkyl group having 1 to 12 carbon atoms, more preferably an alkyl group having 1 to 6 carbon atoms, a methyl group, an ethyl group, a propyl group, a butyl group. More preferred, and a methyl group is particularly preferred.
R M31 and R M32 each independently represent a hydrogen atom or an alkyl group, preferably an alkyl group. The alkyl group here is preferably an alkyl group having 1 to 12 carbon atoms, more preferably an alkyl group having 1 to 6 carbon atoms, more preferably a methyl group, an ethyl group, a propyl group, or a butyl group, and especially a methyl group. preferable.
R M33 , R M34 , R M35 and R M36 each independently represent a hydrogen atom or an organic group. The organic group here is preferably an alkyl group, more preferably an alkyl group having 1 to 12 carbon atoms, more preferably an alkyl group having 1 to 6 carbon atoms, a methyl group, an ethyl group, a propyl group, a butyl group. More preferred, and a methyl group is particularly preferred.
R M33 and R M36 are preferably hydrogen atoms, and R M34 and R M35 are preferably alkyl groups.
R M37 , R M38 and R M39 each independently represent a hydrogen atom or an alkyl group, preferably an alkyl group. The alkyl group here is preferably an alkyl group having 1 to 12 carbon atoms, more preferably an alkyl group having 1 to 6 carbon atoms, more preferably a methyl group, an ethyl group, a propyl group, or a butyl group, and especially a methyl group. preferable.
nx represents an integer of 1 or more and 20 or less. nx may be an integer of 10 or less.
nxは10以下の整数であってもよい。
nxは10以下の整数であってもよい。 The compound represented by formula (M1-1) is preferably a compound represented by formula (M1-3) below, more preferably a compound represented by formula (M1-4) below.
nx may be an integer of 10 or less.
nx may be an integer of 10 or less.
n4は1~10の整数が好ましく、1~5の整数がより好ましく、1~3の整数がさらに好ましく、1または2であることが一層好ましく、1であってもよい。
式(M2)で表される化合物は、n4が異なる化合物の混合物であってもよく、混合物であることが好ましい。また、式(M0)で表される化合物の所で述べたように、他の部分が異なる化合物の混合物であってもよい。
R55は、それぞれ独立に、水素原子、メチル基、エチル基、n-プロピル基、イソプロピル基、n-ブチル基、イソブチル基、t-ブチル基、n-ペンチル基、および、フェニル基からなる群より選択される1種であることが好ましく、水素原子および/またはメチル基であることがより好ましく、水素原子であることがさらに好ましい。
n5は1以上5以下の整数であることが好ましく、1~3の整数がさらに好ましく、1または2であることが一層好ましい。
式(M3)で表される化合物は、n5が異なる化合物の混合物であってもよく、混合物であることが好ましい。また、式(M0)で表される化合物の所で述べたように、他の部分が異なる化合物の混合物であってもよい。
R56は、それぞれ独立にメチル基またはエチル基であることが好ましく、2つあるベンゼン環のそれぞれにおいてメチル基およびエチル基であることがより好ましく、R57は、メチル基が好ましい。
n4 is preferably an integer of 1 to 10, more preferably an integer of 1 to 5, even more preferably an integer of 1 to 3, more preferably 1 or 2, and may be 1.
The compound represented by formula (M2) may be a mixture of compounds with different n4 , and is preferably a mixture. Also, as described in the section of the compound represented by formula (M0), it may be a mixture of compounds in which other moieties are different.
R 55 each independently represents a group consisting of a hydrogen atom, a methyl group, an ethyl group, an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a t-butyl group, an n-pentyl group, and a phenyl group; It is preferably one more selected, more preferably a hydrogen atom and/or a methyl group, and even more preferably a hydrogen atom.
n5 is preferably an integer of 1 or more and 5 or less, more preferably an integer of 1 to 3, and even more preferably 1 or 2.
The compound represented by formula (M3) may be a mixture of compounds with different n5 , and is preferably a mixture. Also, as described in the section of the compound represented by formula (M0), it may be a mixture of compounds in which other moieties are different.
Each R 56 is preferably a methyl group or an ethyl group independently, more preferably a methyl group and an ethyl group in each of the two benzene rings, and R 57 is preferably a methyl group.
R58は、それぞれ独立に、水素原子、メチル基、エチル基、n-プロピル基、イソプロピル基、n-ブチル基、イソブチル基、t-ブチル基、n-ペンチル基、および、フェニル基からなる群より選択される1種であることが好ましく、水素原子および/またはメチル基であることがより好ましく、水素原子であることがさらに好ましい。
R59は、メチル基であることが好ましい。
n6は1~10の整数が好ましく、1~5の整数がより好ましく、1~3の整数がさらに好ましく、1または2であることが一層好ましく、1であってもよい。
式(M5)で表される化合物は、n6が異なる化合物の混合物あってもよく、混合物であることが好ましい。また、式(M0)で表される化合物の所で述べたように、他の部分が異なる化合物の混合物であってもよい。
R 58 each independently represents a group consisting of a hydrogen atom, a methyl group, an ethyl group, an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a t-butyl group, an n-pentyl group, and a phenyl group; It is preferably one more selected, more preferably a hydrogen atom and/or a methyl group, and even more preferably a hydrogen atom.
R 59 is preferably a methyl group.
n6 is preferably an integer of 1 to 10, more preferably an integer of 1 to 5, even more preferably an integer of 1 to 3, more preferably 1 or 2, and may be 1.
The compound represented by formula (M5) may be a mixture of compounds with different n6 , and is preferably a mixture. Also, as described in the section of the compound represented by formula (M0), it may be a mixture of compounds in which other moieties are different.
本実施形態における樹脂組成物は、マレイミド化合物を1種のみ含んでいてもよいし、2種以上含んでいてもよい。2種以上含む場合、合計量が上記範囲となることが好ましい。 When the resin composition of the present embodiment contains a maleimide compound, the lower limit of the content is preferably 1 part by mass or more and 5 parts by mass or more with respect to 100 parts by mass of the resin solid content in the resin composition. more preferably 10 parts by mass or more, even more preferably 15 parts by mass or more, and even more preferably 20 parts by mass or more. When the content of the maleimide compound is 1 part by mass or more, the resulting cured product tends to have improved low dielectric properties and flame resistance. The upper limit of the content of the maleimide compound is preferably 70 parts by mass or less, more preferably 60 parts by mass or less, and 50 parts by mass with respect to 100 parts by mass of the resin solid content in the resin composition. It is more preferably 40 parts by mass or less, even more preferably 35 parts by mass or less, and may be 30 parts by mass or less. When the content of the maleimide compound is 70 parts by mass or less, the metal foil peel strength and low water absorption tend to be improved.
The resin composition in the present embodiment may contain only one type of maleimide compound, or may contain two or more types. When two or more types are included, the total amount is preferably within the above range.
本実施形態の樹脂組成物は、エポキシ化合物を含んでいてもよい。
エポキシ化合物は、1分子中に1以上(好ましくは2~12、より好ましくは2~6、さらに好ましくは2~4、一層好ましくは2または3、より一層好ましくは2)のエポキシ基を有する化合物または樹脂であれば特に限定されず、プリント配線板の分野で通常用いられる化合物を広く用いることができる。
エポキシ化合物は、例えば、ビスフェノールA型エポキシ樹脂、ビスフェノールE型エポキシ樹脂、ビスフェノールF型エポキシ樹脂、ビスフェノールS型エポキシ樹脂、フェノールノボラック型エポキシ樹脂、ビスフェノールAノボラック型エポキシ樹脂、グリシジルエステル型エポキシ樹脂、アラルキルノボラック型エポキシ樹脂、ビフェニルアラルキル型エポキシ樹脂、ナフチレンエーテル型エポキシ樹脂、クレゾールノボラック型エポキシ樹脂、多官能フェノール型エポキシ樹脂、ナフタレン型エポキシ樹脂、アントラセン型エポキシ樹脂、ナフタレン骨格変性ノボラック型エポキシ樹脂、フェノールアラルキル型エポキシ樹脂、ナフトールアラルキル型エポキシ樹脂、ジシクロペンタジエン型エポキシ樹脂、ビフェニル型エポキシ樹脂、脂環式エポキシ樹脂、ポリオール型エポキシ樹脂、リン含有エポキシ樹脂、グリシジルアミン、グリシジルエステル、ブタジエン等の二重結合をエポキシ化した化合物、水酸基含有シリコーン樹脂類とエピクロロヒドリンとの反応により得られる化合物等が挙げられる。これらを用いることで、樹脂組成物の成形性、密着性が向上する。これらの中でも、難燃性および耐熱性をより一層向上させる観点から、ビフェニルアラルキル型エポキシ樹脂、ナフチレンエーテル型エポキシ樹脂、多官能フェノール型エポキシ樹脂、ナフタレン型エポキシ樹脂であることが好ましく、ビフェニルアラルキル型エポキシ樹脂であることがより好ましい。 <<epoxy compound>>
The resin composition of this embodiment may contain an epoxy compound.
The epoxy compound is a compound having one or more (preferably 2 to 12, more preferably 2 to 6, still more preferably 2 to 4, still more preferably 2 or 3, still more preferably 2) epoxy groups in one molecule. Alternatively, if it is a resin, it is not particularly limited, and a wide range of compounds commonly used in the field of printed wiring boards can be used.
Epoxy compounds include, for example, bisphenol A type epoxy resin, bisphenol E type epoxy resin, bisphenol F type epoxy resin, bisphenol S type epoxy resin, phenol novolak type epoxy resin, bisphenol A novolak type epoxy resin, glycidyl ester type epoxy resin, aralkyl Novolak type epoxy resin, biphenyl aralkyl type epoxy resin, naphthylene ether type epoxy resin, cresol novolak type epoxy resin, polyfunctional phenol type epoxy resin, naphthalene type epoxy resin, anthracene type epoxy resin, naphthalene skeleton modified novolak type epoxy resin, phenol Aralkyl-type epoxy resin, naphthol-aralkyl-type epoxy resin, dicyclopentadiene-type epoxy resin, biphenyl-type epoxy resin, alicyclic epoxy resin, polyol-type epoxy resin, phosphorus-containing epoxy resin, glycidylamine, glycidyl ester, butadiene, etc. Compounds obtained by epoxidizing bonds, compounds obtained by reacting hydroxyl group-containing silicone resins with epichlorohydrin, and the like can be mentioned. By using these, the moldability and adhesion of the resin composition are improved. Among these, biphenylaralkyl epoxy resins, naphthylene ether epoxy resins, polyfunctional phenol epoxy resins, and naphthalene epoxy resins are preferred from the viewpoint of further improving flame retardancy and heat resistance. More preferably, it is a type epoxy resin.
本実施形態における樹脂組成物は、エポキシ化合物を1種のみ含んでいてもよいし、2種以上含んでいてもよい。2種以上含む場合、合計量が上記範囲となることが好ましい。
また、本実施形態における樹脂組成物は、エポキシ化合物を実質的に含まない構成とすることもできる。実質的に含まないとは、エポキシ化合物の含有量が樹脂組成物中の樹脂固形分100質量部に対し、1質量部未満であることをいい、0.1質量部未満であることが好ましく、0.01質量部未満であることがより好ましい。 The resin composition of the present embodiment preferably contains an epoxy compound within a range that does not impair the effects of the present invention. When the resin composition of the present embodiment contains an epoxy compound, the content thereof is preferably 0.1 parts by mass or more, and 1 part by mass or more with respect to 100 parts by mass of the resin solid content in the resin composition. It is more preferable that the amount is 2 parts by mass or more. When the content of the epoxy compound is 0.1 parts by mass or more, the metal foil peel strength and toughness tend to be improved. When the resin composition of the present embodiment contains an epoxy compound, the upper limit of the content of the epoxy compound is preferably 50 parts by mass or less with respect to 100 parts by mass of the resin solid content in the resin composition, and is preferably 30 parts by mass. It is more preferably 20 parts by mass or less, still more preferably 10 parts by mass or less, even more preferably 8 parts by mass or less, and 5 parts by mass or less. is even more preferred. When the content of the epoxy compound is 50 parts by mass or less, the resulting cured product tends to have improved electrical properties.
The resin composition in the present embodiment may contain only one type of epoxy compound, or may contain two or more types. When two or more types are included, the total amount is preferably within the above range.
In addition, the resin composition in the present embodiment can also be configured so as not to substantially contain an epoxy compound. "Substantially free" means that the content of the epoxy compound is less than 1 part by mass, preferably less than 0.1 part by mass, with respect to 100 parts by mass of the resin solid content in the resin composition. It is more preferably less than 0.01 part by mass.
本実施形態の樹脂組成物は、難燃剤(D)を含んでいてもよい。難燃剤(D)としては、リン系難燃剤、ハロゲン系難燃剤、無機系難燃剤およびシリコーン系難燃剤が例示され、リン系難燃剤が好ましい。
難燃剤(D)としては、公知のものが使用でき、例えば、臭素化エポキシ樹脂、臭素化ポリカーボネート、臭素化ポリスチレン、臭素化スチレン、臭素化フタルイミド、テトラブロモビスフェノールA、ペンタブロモベンジル(メタ)アクリレート、ペンタブロモトルエン、トリブロモフェノール、ヘキサブロモベンゼン、デカブロモジフェニルエーテル、ビス-1,2-ペンタブロモフェニルエタン、塩素化ポリスチレン、塩素化パラフィン等のハロゲン系難燃剤、赤リン、トリクレジルホスフェート、トリフェニルホスフェート、クレジルジフェニルホスフェート、トリキシレニルホスフェート、トリアルキルホスフェート、ジアルキルホスフェート、トリス(クロロエチル)ホスフェート、ホスファゼン、1,3-フェニレンビス(2,6-ジキシレニルホスフェート)、10-(2,5-ジヒドロキシフェニル)-10H-9-オキサ-10-ホスファフェナントレン-10-オキサイド等のリン系難燃剤、水酸化アルミニウム、水酸化マグネシウム、部分ベーマイト、ベーマイト、ホウ酸亜鉛、三酸化アンチモン等の無機系難燃剤、シリコーンゴム、シリコーンレジン等のシリコーン系難燃剤が挙げられる。
本実施形態においては、これらの中でも、1,3-フェニレンビス(2,6-ジキシレニルホスフェート)が低誘電特性を損なわないことから好ましい。 <Flame retardant (D)>
The resin composition of the present embodiment may contain a flame retardant (D). Examples of flame retardants (D) include phosphorus flame retardants, halogen flame retardants, inorganic flame retardants and silicone flame retardants, with phosphorus flame retardants being preferred.
Known flame retardants (D) can be used, for example, brominated epoxy resin, brominated polycarbonate, brominated polystyrene, brominated styrene, brominated phthalimide, tetrabromobisphenol A, pentabromobenzyl (meth)acrylate. , pentabromotoluene, tribromophenol, hexabromobenzene, decabromodiphenyl ether, bis-1,2-pentabromophenylethane, chlorinated polystyrene, halogenated flame retardants such as chlorinated paraffin, red phosphorus, tricresyl phosphate, triphenyl phosphate, cresyl diphenyl phosphate, trixylenyl phosphate, trialkyl phosphate, dialkyl phosphate, tris(chloroethyl) phosphate, phosphazene, 1,3-phenylenebis(2,6-dixylenyl phosphate), 10-(2 ,5-dihydroxyphenyl)-10H-9-oxa-10-phosphaphenanthrene-10-oxide, phosphorus-based flame retardants such as aluminum hydroxide, magnesium hydroxide, partial boehmite, boehmite, zinc borate, antimony trioxide, etc. and silicone flame retardants such as silicone rubbers and silicone resins.
In the present embodiment, among these, 1,3-phenylenebis(2,6-dixylenyl phosphate) is preferable because it does not impair low dielectric properties.
難燃剤(D)は、1種を単独で、または2種以上を組み合わせて用いることができる。2種以上用いる場合は、合計量が上記範囲となる。 When the resin composition of the present embodiment contains the flame retardant (D), the content thereof is preferably 1 part by mass or more, and 5 parts by mass or more with respect to 100 parts by mass of the resin solid content in the resin composition. More preferably, it may be 10 parts by mass or more. Also, the lower limit of the content of the flame retardant is preferably 25 parts by mass or less, more preferably 20 parts by mass or less.
A flame retardant (D) can be used individually by 1 type or in combination of 2 or more types. When using two or more kinds, the total amount is within the above range.
本実施形態の樹脂組成物は、充填材(E)を含むことが好ましい。充填材(E)を含むことにより、樹脂組成物およびその硬化物の誘電特性(低誘電率性、低誘電正接性等)、耐燃性、および低熱膨張性等の物性をより向上させることができる。
また、本実施形態で用いる充填材(E)は、低誘電特性に優れることが好ましい。例えば、本実施形態で用いる充填材(E)は、空洞共振器摂動法に従って測定した比誘電率(Dk)が8.0以下であることが好ましく、6.0以下であることがより好ましく、4.0以下であることがさらに好ましい。また、前記比誘電率の下限値は、例えば、2.0以上が実際的である。また、本実施形態で用いる充填材(E)は、空洞共振器摂動法に従って測定した誘電正接(Df)が0.05以下であることが好ましく、0.01以下であることがより好ましい。また、前記誘電正接の下限値は、例えば、0.0001以上が実際的である。 <Filler (E)>
The resin composition of the present embodiment preferably contains a filler (E). By including the filler (E), physical properties such as dielectric properties (low dielectric constant, low dielectric loss tangent, etc.), flame resistance, and low thermal expansion of the resin composition and its cured product can be further improved. .
Moreover, the filler (E) used in the present embodiment preferably has excellent low dielectric properties. For example, the filler (E) used in the present embodiment preferably has a dielectric constant (Dk) of 8.0 or less, more preferably 6.0 or less, measured according to the cavity resonator perturbation method. It is more preferably 4.0 or less. Moreover, the lower limit value of the dielectric constant is practically 2.0 or more, for example. The dielectric loss tangent (Df) of the filler (E) used in the present embodiment, measured according to the cavity resonator perturbation method, is preferably 0.05 or less, more preferably 0.01 or less. Moreover, the lower limit value of the dielectric loss tangent is practically 0.0001 or more, for example.
本実施形態においては、無機充填材が好ましく、シリカ、水酸化アルミニウム、窒化アルミニウム、窒化ホウ素、フォルステライト、酸化チタン、チタン酸バリウム、チタン酸ストロンチウム、および、チタン酸カルシウムからなる群より選択される1種以上を含むことがより好ましく、低誘電特性の観点からは、シリカ、および、水酸化アルミニウム、からなる群より選択される1種以上を含むことがより好ましく、シリカを含むことがさらに好ましい。これらの無機充填材を使用することで、樹脂組成物の硬化物の耐熱性、誘電特性、熱膨張特性、寸法安定性、難燃性などの特性がより向上する。 As the filler (E) used in this embodiment, the type is not particularly limited, and those generally used in the industry can be suitably used. Specifically, silicas such as natural silica, fused silica, synthetic silica, amorphous silica, aerosil, and hollow silica, and metal oxides such as alumina, white carbon, titanium white, titanium oxide, zinc oxide, magnesium oxide, and zirconium oxide. , complex oxides such as zinc borate, zinc stannate, forsterite, barium titanate, strontium titanate, calcium titanate, nitrides such as boron nitride, aggregated boron nitride, silicon nitride, aluminum nitride, aluminum hydroxide, Aluminum hydroxide heat-treated product (aluminum hydroxide heat-treated to reduce some of the water of crystallization), boehmite, metal hydroxides such as magnesium hydroxide (including hydrates), molybdenum oxide and molybdic acid Molybdenum compounds such as zinc, barium sulfate, clay, kaolin, talc, calcined clay, calcined kaolin, calcined talc, mica, E-glass, A-glass, NE-glass, C-glass, L-glass, D-glass, Inorganic fillers such as S-glass, M-glass G20, glass short fibers (including fine glass powders such as E-glass, T-glass, D-glass, S-glass, and Q-glass), hollow glass, spherical glass, etc. In addition, organic fillers such as styrene-type, butadiene-type, acrylic-type rubber powders, core-shell type rubber powders, silicone resin powders, silicone rubber powders, and silicone composite powders can be used.
In this embodiment, inorganic fillers are preferred and are selected from the group consisting of silica, aluminum hydroxide, aluminum nitride, boron nitride, forsterite, titanium oxide, barium titanate, strontium titanate, and calcium titanate. It is more preferable to contain one or more kinds, and from the viewpoint of low dielectric properties, it is more preferable to contain one or more kinds selected from the group consisting of silica and aluminum hydroxide, and it is still more preferable to contain silica. . By using these inorganic fillers, properties such as heat resistance, dielectric properties, thermal expansion properties, dimensional stability and flame retardancy of the cured product of the resin composition are further improved.
本実施形態の樹脂組成物において、好ましい実施形態の一例として、充填材(E)の含有量が溶剤を除く成分の30質量%~80質量%である態様が例示される。
本実施形態の樹脂組成物は、充填材(E)を1種のみ含んでいてもよいし、2種以上含んでいてもよい。2種以上含む場合、合計量が上記範囲となることが好ましい。 The content of the filler (E) in the resin composition of the present embodiment can be appropriately set according to the desired properties, and is not particularly limited. It is preferably 10 parts by mass or more, more preferably 20 parts by mass or more, still more preferably 40 parts by mass or more, even more preferably 60 parts by mass or more, and 80 parts by mass or more. is even more preferred. By making it more than the said lower limit, there exists a tendency for the low thermal expansion property and the low dielectric loss tangent property to improve more. In addition, the upper limit of the content of the filler is preferably 300 parts by mass or less, more preferably 250 parts by mass or less, and 200 parts by mass or less with respect to 100 parts by mass of the resin solid content. is more preferably 150 parts by mass or less, and may be 120 parts by mass or less. Formability tends to be further improved by making it equal to or less than the above upper limit.
In the resin composition of the present embodiment, as a preferred embodiment, the content of the filler (E) is 30% by mass to 80% by mass of the components excluding the solvent.
The resin composition of the present embodiment may contain only one filler (E), or may contain two or more fillers (E). When two or more types are included, the total amount is preferably within the above range.
シランカップリング剤としては特に限定されず、一般に無機物の表面処理に使用されるシランカップリング剤が挙げられ、アミノシラン系化合物(例えば、γ-アミノプロピルトリエトキシシラン、N-β-(アミノエチル)-γ-アミノプロピルトリメトキシシラン等)、エポキシシラン系化合物(例えば、γ-グリシドキシプロピルトリメトキシシラン等)、ビニルシラン系化合物(例えば、ビニルトリメトキシシラン等)、スチリルシラン系化合物(例えば、スチリルトリメトキシシラン等)、アクリルシラン系化合物(例えば、γ-アクリロキシプロピルトリメトキシシラン等)、カチオニックシラン系化合物(例えば、N-β-(N-ビニルベンジルアミノエチル)-γ-アミノプロピルトリメトキシシラン塩酸塩等)、フェニルシラン系化合物等が挙げられる。シランカップリング剤は、1種を単独で、または2種以上を組み合わせて用いられる。
特にシランカップリング剤として、ビニルシラン系化合物、アクリルシラン系化合物、およびスチリルシラン系化合物からなる群より選択される少なくとも1種を用い、かつ、前記相溶する熱硬化性樹脂(B)として、芳香環とビニル基を含む熱硬化性樹脂(特には、式(V)で表される構成単位を有する重合体)を用いることにより、優れた誘電特性を維持しつつ、吸湿耐熱性に優れた樹脂組成物が得られる。
シランカップリング剤の含有量は、特に限定されないが、樹脂固形分100質量部に対して、0.1~5.0質量部であってよい。 The resin composition of the present embodiment may further contain a silane coupling agent when using a filler (E), particularly an inorganic filler. Inclusion of the silane coupling agent tends to further improve the dispersibility of the filler (E) and the adhesive strength between the resin component, the filler (E), and the substrate described later.
The silane coupling agent is not particularly limited, and includes silane coupling agents generally used for surface treatment of inorganic substances, aminosilane compounds (eg, γ-aminopropyltriethoxysilane, N-β-(aminoethyl) -γ-aminopropyltrimethoxysilane, etc.), epoxysilane compounds (eg, γ-glycidoxypropyltrimethoxysilane, etc.), vinylsilane compounds (eg, vinyltrimethoxysilane, etc.), styrylsilane compounds (eg, styryltrimethoxysilane, etc.), acrylsilane compounds (eg, γ-acryloxypropyltrimethoxysilane, etc.), cationic silane compounds (eg, N-β-(N-vinylbenzylaminoethyl)-γ-aminopropyl) trimethoxysilane hydrochloride, etc.), phenylsilane compounds, and the like. A silane coupling agent is used individually by 1 type or in combination of 2 or more types.
In particular, as the silane coupling agent, at least one selected from the group consisting of vinylsilane-based compounds, acrylsilane-based compounds, and styrylsilane-based compounds is used, and as the compatible thermosetting resin (B), aromatic By using a thermosetting resin containing a ring and a vinyl group (in particular, a polymer having a structural unit represented by formula (V)), a resin that maintains excellent dielectric properties and has excellent moisture absorption and heat resistance. A composition is obtained.
The content of the silane coupling agent is not particularly limited, but may be 0.1 to 5.0 parts by mass with respect to 100 parts by mass of the resin solid content.
本実施形態の樹脂組成物には、熱硬化性および活性エネルギー線による硬化性(例えば紫外線による光硬化性等)を高めるために、エチレン性不飽和基を有するモノマーまたはオリゴマーを併用することも可能である。本実施形態に用いるエチレン性不飽和基を有するオリゴマーまたはモノマーは、1分子中に1個以上のエチレン性不飽和基を有するオリゴマーまたはモノマーであれば、特に限定されないが、例えば、(メタ)アクリロイル基、ビニル基等を有するモノマーまたはオリゴマーが挙げられる。
尚、本明細書においては、エチレン性不飽和基を有するモノマーまたはオリゴマーに該当する化合物であって、末端に炭素-炭素不飽和二重結合を有するポリフェニレンエーテル化合物にも該当する化合物は、末端に炭素-炭素不飽和二重結合を有するポリフェニレンエーテル化合物とする。 <Monomer or Oligomer Having Ethylenically Unsaturated Group>
In the resin composition of the present embodiment, a monomer or oligomer having an ethylenically unsaturated group can be used in combination in order to enhance thermosetting and curability with active energy rays (for example, photocurability with ultraviolet rays). is. The oligomer or monomer having an ethylenically unsaturated group used in the present embodiment is not particularly limited as long as it is an oligomer or monomer having one or more ethylenically unsaturated groups in one molecule. For example, (meth)acryloyl groups, vinyl groups, and the like.
In the present specification, a compound corresponding to a monomer or oligomer having an ethylenically unsaturated group and a compound corresponding to a polyphenylene ether compound having a carbon-carbon unsaturated double bond at the terminal is A polyphenylene ether compound having a carbon-carbon unsaturated double bond is used.
前記エチレン性不飽和結合を含む有機基を構成するエチレン性不飽和結合は、芳香環の一部として含まれるものは含まない趣旨である。一方、非芳香環の一部として含まれるエチレン性不飽和結合は含む趣旨である。非芳香環の一部として含まれるエチレン性不飽和結合の例としては、分子中のシクロヘキセニル基などが挙げられる。また、直鎖または分岐鎖の有機基の末端以外の部分、すなわち、直鎖または分岐鎖中に含まれるエチレン性不飽和結合も含む趣旨である。
前記エチレン性不飽和結合を含む有機基は、ビニル基、アリル基、アクリル基、および、メタクリル基からなる群より選ばれる1つであることがより好ましく、ビニル基であることがさらに好ましい。
また、本明細書においては、エチレン性不飽和基を有するモノマーまたはオリゴマーに該当する化合物であって、シランカップリング剤に該当も該当する化合物は、シランカップリング剤とする。 More specifically, the monomer having an ethylenically unsaturated group includes a compound (F1) (compound (F1 )). It is speculated that by using the compound (F1), the ethylenically unsaturated bond of the compound (F1) reacts with the compatible thermosetting resin (B) to improve the moisture absorption and heat resistance of the obtained cured product. be.
The ethylenically unsaturated bond constituting the organic group containing the ethylenically unsaturated bond does not include those included as part of the aromatic ring. On the other hand, it is meant to include an ethylenically unsaturated bond contained as part of a non-aromatic ring. Examples of ethylenically unsaturated bonds contained as part of non-aromatic rings include cyclohexenyl groups in the molecule. It is also meant to include the portion other than the end of the linear or branched organic group, that is, the ethylenically unsaturated bond contained in the linear or branched chain.
The organic group containing an ethylenically unsaturated bond is more preferably one selected from the group consisting of a vinyl group, an allyl group, an acrylic group, and a methacrylic group, and more preferably a vinyl group.
In the present specification, a compound that corresponds to a monomer or oligomer having an ethylenically unsaturated group and that also corresponds to a silane coupling agent is a silane coupling agent.
本実施形態で用いる化合物(F1)は、また、極性基を有していてもよいし、有していなくてもよい。本実施形態で用いる化合物(F1)は、極性基を有していない方が好ましい。極性基としては、アミノ基、カルボキシル基、ヒドロキシ基、ニトロ基が例示される。 The compound (F1) used in this embodiment is also preferably composed only of atoms selected from carbon atoms, hydrogen atoms, oxygen atoms and silicon atoms, and from carbon atoms, hydrogen atoms and oxygen atoms More preferably, it is composed only of selected atoms.
The compound (F1) used in this embodiment may or may not have a polar group. The compound (F1) used in this embodiment preferably does not have a polar group. Polar groups are exemplified by amino groups, carboxyl groups, hydroxy groups and nitro groups.
本実施形態の樹脂組成物を化合物(F1)が2種以上含む場合、化合物(F1)の平均分子量値が上記範囲に含まれることが好ましく、それぞれの化合物の分子量が上記好ましい範囲に含まれることがより好ましい。 In the present embodiment, the molecular weight of compound (F1) is preferably 70 or more, more preferably 80 or more, even more preferably 90 or more. When the content is at least the above lower limit, volatilization of the compound (F1) from the resin composition of the present embodiment, a cured product thereof, or the like tends to be suppressed. The upper limit of the molecular weight of the compound (F1) is preferably 500 or less, more preferably 400 or less, still more preferably 300 or less, even more preferably 200 or less, and 150 or less. may By making it equal to or less than the above upper limit, there is a tendency that the effect of increasing the reactivity with the compatible thermosetting resin (B) is further improved.
When the compound (F1) contains two or more kinds of the resin composition of the present embodiment, the average molecular weight value of the compound (F1) is preferably included in the above range, and the molecular weight of each compound is included in the preferred range. is more preferred.
本実施形態の樹脂組成物を化合物(F1)が2種以上含む場合、沸点の平均値が上記範囲に入ればよいが、それぞれの化合物の沸点が上記好ましい範囲に含まれることが好ましい。 In the present embodiment, the boiling point of compound (F1) is preferably 110° C. or higher, more preferably 115° C. or higher, even more preferably 120° C. or higher. When the content is at least the above lower limit, volatilization of the compound (F1) is suppressed during thermosetting of the resin composition, and the thermosetting resin (B) and the compound (F1) can be reacted. The boiling point of the compound (F1) is preferably 300°C or lower, more preferably 250°C or lower, and even more preferably 200°C or lower. By setting the content to the above upper limit or less, it is possible to make it difficult for residual solvent to remain in the cured product.
When two or more compounds (F1) are included in the resin composition of the present embodiment, the boiling point average value should be within the above range, but the boiling point of each compound is preferably within the above preferable range.
化合物(F1)の具体例としては、メチルスチレン、エチルビニルベンゼンが例示される。 Examples of the compound (F1) include (meth)acrylate compounds, aromatic vinyl compounds (preferably styrene compounds), saturated fatty acid vinyl compounds, vinyl cyanide compounds, ethylenically unsaturated carboxylic acids, and ethylenically unsaturated carboxylic acids. Anhydrides, ethylenically unsaturated dicarboxylic acid monoalkyl esters, ethylenically unsaturated carboxylic acid amides, etc. are exemplified, and selected from the group consisting of (meth)acrylic acid ester compounds, aromatic vinyl compounds, and saturated fatty acid vinyl compounds. is preferably at least one of the aromatic vinyl compounds, and more preferably an aromatic vinyl compound.
Specific examples of the compound (F1) include methylstyrene and ethylvinylbenzene.
本実施形態の樹脂組成物においては、α-メチルスチレンオリゴマーが、良好に熱硬化し、良好な微細配線の埋め込み性および半田耐熱性、低比誘電率、低誘電正接に優れることから好ましい。 Examples of the styrene oligomer (F2) used in the present embodiment include styrene polymer, vinyltoluene polymer, α-methylstyrene polymer, vinyltoluene-α-methylstyrene polymer, styrene-α-styrene polymer, and the like. are mentioned. As the styrene polymer, commercially available products may be used. Examples include FTR-8100 (manufactured by Mitsui Chemicals, Inc.) and FTR-8120 (manufactured by Mitsui Chemicals, Inc.). Examples of the vinyltoluene-α-methylstyrene polymer include Picotex LC (manufactured by Eastman Chemical Co.). Examples of α-methylstyrene polymers include Crystalex 3070 (manufactured by Eastman Chemical Co.), Crystalex 3085 (manufactured by Eastman Chemical Co.), Crystalex (3100), Crystalex 5140 (manufactured by Eastman Chemical Co.) and FMR. -0100 (manufactured by Mitsui Chemicals, Inc.) and FMR-0150 (manufactured by Mitsui Chemicals, Inc.). Further, the styrene-α-styrene polymer includes FTR-2120 (manufactured by Mitsui Chemicals, Inc.). These styrene oligomers may be used alone or in combination of two or more.
In the resin composition of the present embodiment, an α-methylstyrene oligomer is preferable because it is well heat-cured, and is excellent in fine wiring embedding properties, solder heat resistance, low dielectric constant, and low dielectric loss tangent.
本実施形態の樹脂組成物は、エチレン性不飽和基を有するモノマーまたはオリゴマーを1種のみ含んでいてもよいし、2種以上含んでいてもよい。2種以上含む場合、合計量が上記範囲となることが好ましい。 When the resin composition of the present embodiment contains a monomer or oligomer having an ethylenically unsaturated group, the content is preferably 0.5 parts by mass or more with respect to 100 parts by mass of the resin solid content, and 1 mass It is more preferably 2 parts by mass or more, even more preferably 2 parts by mass or more, even more preferably 3 parts by mass or more, and may be 5 parts by mass or more. When the content is equal to or higher than the lower limit, low dielectric properties tend to be further improved. The upper limit of the content of the monomer or oligomer having an ethylenically unsaturated group is preferably 30 parts by mass or less, more preferably 25 parts by mass or less, relative to 100 parts by mass of the resin solid content. , more preferably 20 parts by mass or less, even more preferably 15 parts by mass or less, and even more preferably 10 parts by mass or less. By making it below the said upper limit, there exists a tendency for heat resistance to improve more. In addition, the low dielectric constant, low dielectric loss tangent and chemical resistance tend to be further improved.
The resin composition of the present embodiment may contain only one type of monomer or oligomer having an ethylenically unsaturated group, or may contain two or more types. When two or more types are included, the total amount is preferably within the above range.
本実施形態の樹脂組成物は、活性エステル化合物を含んでいてもよい。
活性エステル化合物としては、特に限定されず、例えば、1分子中に2以上(好ましくは2~12、より好ましくは2~6、さらに好ましくは2~4、一層好ましくは2または3、より一層好ましくは2)の活性エステル基を有する化合物が挙げられる。
活性エステル化合物は、直鎖もしくは分岐または環状の化合物であってもよい。これらの中でも、得られる硬化物の耐熱性を一層向上させる点から、カルボン酸化合物および/またはチオカルボン酸化合物と、ヒドロキシ化合物および/またはチオール化合物とを反応させることにより得られる活性エステル化合物が好ましく、カルボン酸化合物と、フェノール化合物、ナフトール化合物、およびチオール化合物からなる群より選択される1種以上の化合物とを反応させることにより得られる活性エステル化合物がより好ましく、カルボン酸化合物とフェノール性水酸基を有する芳香族化合物とを反応させることにより得られ、1分子中に2以上の活性エステル基を有する芳香族化合物がさらに好ましく、2以上のカルボン酸を1分子中に有する化合物と、フェノール性水酸基を有する芳香族化合物とを反応させることにより得られ、1分子中に2以上の活性エステル基を有する芳香族化合物が特に好ましい。
上記のカルボン酸化合物としては、安息香酸、酢酸、コハク酸、マレイン酸、イタコン酸、フタル酸、イソフタル酸、テレフタル酸、およびピロメリット酸からなる群より選ばれる1種以上が挙げられ、これらの中でも、得られる硬化物の耐熱性をより一層向上させる観点から、コハク酸、マレイン酸、イタコン酸、フタル酸、イソフタル酸、およびテレフタル酸からなる群より選ばれる1種以上が好ましく、イソフタル酸およびテレフタル酸からなる群より選ばれる1種以上がより好ましい。
上記のチオカルボン酸化合物としては、チオ酢酸およびチオ安息香酸より選ばれる1種以上が挙げられる。
上記のフェノール化合物またはナフトール化合物としては、ハイドロキノン、レゾルシン、ビスフェノールA、ビスフェノールF、ビスフェノールS、フェノールフタリン、メチル化ビスフェノールA、メチル化ビスフェノールF、メチル化ビスフェノールS、フェノール、o-クレゾール、m-クレゾール、p-クレゾール、カテコール、α-ナフトール、β-ナフトール、1,5-ジヒドロキシナフタレン、1,6-ジヒドロキシナフタレン、2,6-ジヒドロキシナフタレン、ジヒドロキシベンゾフェノン、トリヒドロキシベンゾフェノン、テトラヒドロキシベンゾフェノン、フロログルシン、ベンゼントリオール、ジシクロペンタジエニルジフェノール、およびフェノールノボラックからなる群より選ばれる1種以上が挙げられ、得られる硬化物の耐熱性および溶剤溶解性をより一層向上させる観点から、ビスフェノールA、ビスフェノールF、ビスフェノールS、メチル化ビスフェノールA、メチル化ビスフェノールF、メチル化ビスフェノールS、カテコール、α-ナフトール、β-ナフトール、1,5-ジヒドロキシナフタレン、1,6-ジヒドロキシナフタレン、2,6-ジヒドロキシナフタレン、ジヒドロキシベンゾフェノン、トリヒドロキシベンゾフェノン、テトラヒドロキシベンゾフェノン、フロログルシン、ベンゼントリオール、ジシクロペンタジエニルジフェノール、フェノールノボラックが好ましく、カテコール、1,5-ジヒドロキシナフタレン、1,6-ジヒドロキシナフタレン、2,6-ジヒドロキシナフタレン、ジヒドロキシベンゾフェノン、トリヒドロキシベンゾフェノン、テトラヒドロキシベンゾフェノン、フロログルシン、ベンゼントリオール、ジシクロペンタジエニルジフェノール、およびフェノールノボラックからなる群より選ばれる1種以上がより好ましく、1,5-ジヒドロキシナフタレン、1,6-ジヒドロキシナフタレン、2,6-ジヒドロキシナフタレン、ジヒドロキシベンゾフェノン、トリヒドロキシベンゾフェノン、テトラヒドロキシベンゾフェノン、ジシクロペンタジエニルジフェノール、およびフェノールノボラックからなる群より選ばれる1種以上がさらに好ましく、ジヒドロキシベンゾフェノン、トリヒドロキシベンゾフェノン、テトラヒドロキシベンゾフェノン、ジシクロペンタジエニルジフェノール、およびフェノールノボラックからなる群より選ばれる1種以上(好ましくは、ジシクロペンタジエニルジフェノールおよびフェノールノボラックからなる群より選ばれる1種以上、より好ましくはジシクロペンタジエニルジフェノール)であることが特に好ましい。
上記のチオール化合物としては、ベンゼンジチオールおよびトリアジンジチオールからなる群より選ばれる1種以上が挙げられる。
また、活性エステル化合物は、エポキシ化合物との相溶性を一層向上させる観点から、2以上のカルボン酸を1分子中に有し、かつ脂肪族鎖を含む化合物であることが好ましく、耐熱性を一層向上させる観点から、芳香環を有する化合物であることが好ましい。より具体的な活性エステル化合物としては、特開2004-277460号公報に記載の活性エステル化合物が挙げられる。 <Active ester compound>
The resin composition of this embodiment may contain an active ester compound.
The active ester compound is not particularly limited. 2) includes compounds having an active ester group.
The active ester compound may be a linear or branched or cyclic compound. Among these, an active ester compound obtained by reacting a carboxylic acid compound and/or a thiocarboxylic acid compound with a hydroxy compound and/or a thiol compound is preferable from the viewpoint of further improving the heat resistance of the resulting cured product. An active ester compound obtained by reacting a carboxylic acid compound with one or more compounds selected from the group consisting of a phenol compound, a naphthol compound, and a thiol compound is more preferred, and has a carboxylic acid compound and a phenolic hydroxyl group. An aromatic compound obtained by reacting with an aromatic compound and having two or more active ester groups in one molecule is more preferable, and a compound having two or more carboxylic acids in one molecule and a phenolic hydroxyl group. An aromatic compound obtained by reacting with an aromatic compound and having two or more active ester groups in one molecule is particularly preferred.
Examples of the carboxylic acid compound include one or more selected from the group consisting of benzoic acid, acetic acid, succinic acid, maleic acid, itaconic acid, phthalic acid, isophthalic acid, terephthalic acid, and pyromellitic acid. Among them, from the viewpoint of further improving the heat resistance of the resulting cured product, one or more selected from the group consisting of succinic acid, maleic acid, itaconic acid, phthalic acid, isophthalic acid, and terephthalic acid are preferred, isophthalic acid and One or more selected from the group consisting of terephthalic acid is more preferred.
The above thiocarboxylic acid compound includes one or more selected from thioacetic acid and thiobenzoic acid.
Examples of the phenolic compound or naphthol compound include hydroquinone, resorcinol, bisphenol A, bisphenol F, bisphenol S, phenolphthalin, methylated bisphenol A, methylated bisphenol F, methylated bisphenol S, phenol, o-cresol, m- cresol, p-cresol, catechol, α-naphthol, β-naphthol, 1,5-dihydroxynaphthalene, 1,6-dihydroxynaphthalene, 2,6-dihydroxynaphthalene, dihydroxybenzophenone, trihydroxybenzophenone, tetrahydroxybenzophenone, phloroglucine, One or more selected from the group consisting of benzenetriol, dicyclopentadienyldiphenol, and phenol novolak, and from the viewpoint of further improving the heat resistance and solvent solubility of the resulting cured product, bisphenol A, bisphenol F, bisphenol S, methylated bisphenol A, methylated bisphenol F, methylated bisphenol S, catechol, α-naphthol, β-naphthol, 1,5-dihydroxynaphthalene, 1,6-dihydroxynaphthalene, 2,6-dihydroxynaphthalene , dihydroxybenzophenone, trihydroxybenzophenone, tetrahydroxybenzophenone, phloroglucine, benzenetriol, dicyclopentadienyldiphenol, phenol novolak, catechol, 1,5-dihydroxynaphthalene, 1,6-dihydroxynaphthalene, 2,6- more preferably one or more selected from the group consisting of dihydroxynaphthalene, dihydroxybenzophenone, trihydroxybenzophenone, tetrahydroxybenzophenone, phloroglucine, benzenetriol, dicyclopentadienyldiphenol, and phenol novolak, 1,5-dihydroxynaphthalene, At least one selected from the group consisting of 1,6-dihydroxynaphthalene, 2,6-dihydroxynaphthalene, dihydroxybenzophenone, trihydroxybenzophenone, tetrahydroxybenzophenone, dicyclopentadienyldiphenol, and phenol novolac is more preferable, and dihydroxy the group consisting of benzophenone, trihydroxybenzophenone, tetrahydroxybenzophenone, dicyclopentadienyldiphenol, and phenol novolak; One or more selected from the group consisting of dicyclopentadienyldiphenol and phenol novolac are particularly preferable, and dicyclopentadienyldiphenol is more preferable.
The thiol compound includes one or more selected from the group consisting of benzenedithiol and triazinedithiol.
In addition, from the viewpoint of further improving compatibility with epoxy compounds, the active ester compound is preferably a compound having two or more carboxylic acids in one molecule and containing an aliphatic chain. From the viewpoint of improvement, compounds having an aromatic ring are preferred. More specific active ester compounds include active ester compounds described in JP-A-2004-277460.
本実施形態における樹脂組成物は、活性エステル化合物を1種のみ含んでいてもよいし、2種以上含んでいてもよい。2種以上含む場合、合計量が上記範囲となることが好ましい。
また、本実施形態における樹脂組成物は、活性エステル化合物を実質的に含まない構成とすることもできる。実質的に含まないとは、活性エステル化合物の含有量が樹脂組成物中の樹脂固形分100質量部に対し、1質量部未満であることいい、0.1質量部未満であることが好ましく、0.01質量部未満であることがさらに好ましい。 The active ester compound is preferably contained within a range that does not impair the effects of the present invention. When the resin composition of the present embodiment contains an active ester compound, it is preferably 1 part by mass or more and preferably 90 parts by mass or less with respect to 100 parts by mass of the resin solid content in the resin composition. .
The resin composition in the present embodiment may contain only one type of active ester compound, or may contain two or more types. When two or more types are included, the total amount is preferably within the above range.
In addition, the resin composition in the present embodiment may be configured so as not to substantially contain an active ester compound. "Substantially free" means that the content of the active ester compound is less than 1 part by mass, preferably less than 0.1 part by mass, with respect to 100 parts by mass of the resin solid content in the resin composition. More preferably, it is less than 0.01 part by mass.
本実施形態の樹脂組成物は、分散剤を含んでいてもよい。分散剤としては、一般に塗料用に使用されているものを好適に用いることができ、その種類は特に限定されない。分散剤は、好ましくは、共重合体ベースの湿潤分散剤が使用され、その具体例としては、ビックケミー・ジャパン(株)製のDISPERBYK(登録商標)-110、111、161、180、2009、2152、2155、BYK(登録商標)-W996、W9010、W903、W940などが挙げられる。 <Dispersant>
The resin composition of this embodiment may contain a dispersant. As the dispersant, those generally used for paints can be suitably used, and the type thereof is not particularly limited. The dispersant is preferably a copolymer-based wetting and dispersing agent, and specific examples thereof include DISPERBYK (registered trademark)-110, 111, 161, 180, 2009, and 2152 manufactured by BYK-Chemie Japan Co., Ltd. , 2155, BYK®-W996, W9010, W903, W940 and the like.
分散剤は、1種を単独で、または2種以上を組み合わせて用いることができる。2種以上用いる場合は、合計量が上記範囲となる。 When the resin composition of the present embodiment contains a dispersant, the lower limit of the content is preferably 0.01 parts by mass or more with respect to 100 parts by mass of the resin solid content in the resin composition. It is more preferably 1 part by mass or more, and may be 0.3 parts by mass or more. In addition, the upper limit of the content of the dispersant is preferably 10 parts by mass or less, more preferably 5 parts by mass or less, and 3 parts by mass with respect to 100 parts by mass of the resin solid content in the resin composition. Part or less is more preferable.
A dispersing agent can be used individually by 1 type or in combination of 2 or more types. When using two or more kinds, the total amount is within the above range.
本実施形態の樹脂組成物は、硬化促進剤をさらに含んでもよい。硬化促進剤としては、特に限定されないが、例えば、2-エチル-4-メチルイミダゾール、トリフェニルイミダゾール等のイミダゾール類;過酸化ベンゾイル、ラウロイルパーオキサイド、アセチルパーオキサイド、パラクロロベンゾイルパーオキサイド、ジ-tert-ブチル-ジ-パ-フタレート、α,α’-ジ(t-ブチルペルオキシ)ジイソプロピルベンゼン、2,5-ジメチル-2,5-ジ(t-ブチルペルオキシ)ヘキサン、2,5-ジメチル-2,5-ビス(t-ブチルペルオキシ)ヘキシン-3などの有機過酸化物;アゾビスニトリル(例えば、アゾビスイソブチロニトリル)などのアゾ化合物;N,N-ジメチルベンジルアミン、N,N-ジメチルアニリン、N,N-ジメチルトルイジン、2-N-エチルアニリノエタノール、トリ-n-ブチルアミン、ピリジン、キノリン、N-メチルモルホリン、トリエタノールアミン、トリエチレンジアミン、テトラメチルブタンジアミン、N-メチルピペリジンなどの第3級アミン類;フェノール、キシレノール、クレゾール、レゾルシン、カテコールなどのフェノール類;2,3-ジメチル-2,3-ジフェニルブタンなどの高温分解型ラジカル発生剤;ナフテン酸鉛、ステアリン酸鉛、ナフテン酸亜鉛、オクチル酸亜鉛、オクチル酸マンガン、オレイン酸錫、ジブチル錫マレート、ナフテン酸マンガン、ナフテン酸コバルト、アセチルアセトン鉄などの有機金属塩;これら有機金属塩をフェノール、ビスフェノールなどの水酸基含有化合物に溶解してなるもの;塩化錫、塩化亜鉛、塩化アルミニウムなどの無機金属塩;ジオクチル錫オキサイド、その他のアルキル錫、アルキル錫オキサイドなどの有機錫化合物などが挙げられる。
好ましい硬化促進剤は、イミダゾール類および有機金属塩であり、イミダゾール類および有機金属塩の両方を組み合わせて用いることがより好ましい。
また、本実施形態においては、有機過酸化物、アゾ化合物などの重合開始剤を実質的に含まない構成とすることもできる。実質的に含まないとは、重合開始剤の含有量が樹脂組成物中の樹脂固形分100質量部に対し、0.1質量部未満であることをいう。 <Curing accelerator>
The resin composition of this embodiment may further contain a curing accelerator. The curing accelerator is not particularly limited, but for example, 2-ethyl-4-methylimidazole, imidazoles such as triphenylimidazole; benzoyl peroxide, lauroyl peroxide, acetyl peroxide, parachlorobenzoyl peroxide, di- tert-butyl-di-per-phthalate, α,α'-di(t-butylperoxy)diisopropylbenzene, 2,5-dimethyl-2,5-di(t-butylperoxy)hexane, 2,5-dimethyl- organic peroxides such as 2,5-bis(t-butylperoxy)hexyne-3; azo compounds such as azobisnitrile (e.g. azobisisobutyronitrile); N,N-dimethylbenzylamine, N,N -dimethylaniline, N,N-dimethyltoluidine, 2-N-ethylanilinoethanol, tri-n-butylamine, pyridine, quinoline, N-methylmorpholine, triethanolamine, triethylenediamine, tetramethylbutanediamine, N-methyl tertiary amines such as piperidine; phenols such as phenol, xylenol, cresol, resorcinol and catechol; high-temperature decomposition type radical generators such as 2,3-dimethyl-2,3-diphenylbutane; lead naphthenate, stearic acid Organic metal salts such as lead, zinc naphthenate, zinc octylate, manganese octylate, tin oleate, dibutyltin malate, manganese naphthenate, cobalt naphthenate, and iron acetylacetonate; those dissolved in compounds; inorganic metal salts such as tin chloride, zinc chloride and aluminum chloride; organic tin compounds such as dioctyltin oxide, other alkyltins and alkyltin oxides;
Preferred curing accelerators are imidazoles and organometallic salts, more preferably both imidazoles and organometallic salts are used in combination.
In addition, in the present embodiment, it is also possible to adopt a configuration that substantially does not contain a polymerization initiator such as an organic peroxide or an azo compound. “Substantially free” means that the content of the polymerization initiator is less than 0.1 part by mass with respect to 100 parts by mass of the resin solid content in the resin composition.
硬化促進剤は、1種を単独で、または2種以上を組み合わせて用いることができる。2種以上用いる場合は、合計量が上記範囲となる。 When the resin composition of the present embodiment contains a curing accelerator, the lower limit of the content is preferably 0.005 parts by mass or more with respect to 100 parts by mass of the resin solid content in the resin composition. It is more preferably at least 0.01 part by mass, and even more preferably at least 0.1 part by mass. In addition, the upper limit of the content of the curing accelerator is preferably 10 parts by mass or less, more preferably 5 parts by mass or less, with respect to 100 parts by mass of the resin solid content in the resin composition. Part or less is more preferable.
A hardening accelerator can be used individually by 1 type or in combination of 2 or more types. When using two or more kinds, the total amount is within the above range.
本実施形態の樹脂組成物は、溶剤を含有してもよく、有機溶剤を含むことが好ましい。溶剤を含有する場合、本実施形態の樹脂組成物は、上述した各種樹脂固形分の少なくとも一部、好ましくは全部が溶剤に溶解または相溶した形態(溶液またはワニス)である。溶剤としては、上述した各種樹脂固形分の少なくとも一部、好ましくは全部を溶解または相溶可能な極性有機溶剤または無極性有機溶剤であれば特に限定されず、極性有機溶剤としては、例えば、ケトン類(例えば、アセトン、メチルエチルケトン、メチルイソブチルケトン等)、セロソルブ類(例えば、プロピレングリコールモノメチルエーテル、プロピレングリコールモノメチルエーテルアセテート等)、エステル類(例えば、乳酸エチル、酢酸メチル、酢酸エチル、酢酸ブチル、酢酸イソアミル、乳酸エチル、メトキシプロピオン酸メチル、ヒドロキシイソ酪酸メチル等)、アミド類(例えば、ジメトキシアセトアミド、ジメチルホルムアミド類等)が挙げられ、無極性有機溶剤としては、芳香族炭化水素(例えば、トルエン、キシレン等)が挙げられる。
溶剤は、1種を単独で、または2種以上を組み合わせて用いることができる。2種以上用いる場合は、合計量が上記範囲となる。 <Solvent>
The resin composition of the present embodiment may contain a solvent, and preferably contains an organic solvent. When a solvent is contained, the resin composition of the present embodiment is in a form (solution or varnish) in which at least part, preferably all of the various resin solids described above are dissolved or compatible with the solvent. The solvent is not particularly limited as long as it is a polar organic solvent or a non-polar organic solvent capable of dissolving or dissolving at least a part, preferably all, of the various resin solids described above. Examples of polar organic solvents include ketones. (e.g., acetone, methyl ethyl ketone, methyl isobutyl ketone, etc.), cellosolves (e.g., propylene glycol monomethyl ether, propylene glycol monomethyl ether acetate, etc.), esters (e.g., ethyl lactate, methyl acetate, ethyl acetate, butyl acetate, acetic acid isoamyl, ethyl lactate, methyl methoxypropionate, methyl hydroxyisobutyrate, etc.), amides (e.g., dimethoxyacetamide, dimethylformamides, etc.), and nonpolar organic solvents include aromatic hydrocarbons (e.g., toluene, xylene, etc.).
A solvent can be used individually by 1 type or in combination of 2 or more types. When using two or more kinds, the total amount is within the above range.
本実施形態の樹脂組成物は、上記の成分以外に、熱可塑性樹脂、およびそのオリゴマー等の種々の高分子化合物、各種添加剤を含有してもよい。添加剤としては、紫外線吸収剤、酸化防止剤、光重合開始剤、蛍光増白剤、光増感剤、染料、顔料、増粘剤、流動調整剤、滑剤、消泡剤、レベリング剤、光沢剤、重合禁止剤等が挙げられる。これらの添加剤は、1種を単独で、または2種以上を組み合わせて用いることができる。 <Other ingredients>
In addition to the above components, the resin composition of the present embodiment may contain thermoplastic resins, various polymer compounds such as oligomers thereof, and various additives. Additives include ultraviolet absorbers, antioxidants, photopolymerization initiators, fluorescent brighteners, photosensitizers, dyes, pigments, thickeners, flow control agents, lubricants, antifoaming agents, leveling agents, gloss agents, polymerization inhibitors, and the like. These additives can be used singly or in combination of two or more.
本実施形態の樹脂組成物は、硬化物として用いられる。具体的には、本実施形態の樹脂組成物は、低比誘電率材料および/または低誘電正接材料として、プリント配線板の絶縁層、半導体パッケージ用材料等、電子材料用樹脂組成物として好適に用いることができる。本実施形態の樹脂組成物は、プリプレグ、プリプレグを用いた金属箔張積層板、樹脂複合シート、およびプリント配線板用の材料として好適に用いることができる。
本実施形態の樹脂組成物は、プリント配線板の絶縁層となる、プリプレグ、樹脂複合シート等の層状(フィルム状、シート状等を含む趣旨である)の材料として用いられるが、かかる層状の材料としたとき、その厚さは、5μm以上であることが好ましく、10μm以上であることがより好ましい。厚さの上限値としては、200μm以下であることが好ましく、180μm以下であることがより好ましい。尚、上記層状の材料の厚さは、例えば、本実施形態の樹脂組成物をガラスクロス等に含浸させたものである場合、ガラスクロスを含む厚さを意味する。
本実施形態の樹脂組成物から形成される材料は、露光現像してパターンを形成する用途に用いてもよいし、露光現像しない用途に用いてもよい。特に、露光現像しない用途に適している。 <Application>
The resin composition of this embodiment is used as a cured product. Specifically, the resin composition of the present embodiment is a low dielectric constant material and/or a low dielectric loss tangent material, and is suitable as a resin composition for electronic materials such as an insulating layer of a printed wiring board and a semiconductor package material. can be used. The resin composition of the present embodiment can be suitably used as a material for prepregs, metal foil-clad laminates using prepregs, resin composite sheets, and printed wiring boards.
The resin composition of the present embodiment is used as a layered (film-like, sheet-like, etc.) material such as prepreg, resin composite sheet, etc., which becomes an insulating layer of a printed wiring board. , the thickness is preferably 5 μm or more, more preferably 10 μm or more. The upper limit of the thickness is preferably 200 μm or less, more preferably 180 μm or less. The thickness of the layered material means the thickness including the glass cloth, for example, when the resin composition of the present embodiment is impregnated into the glass cloth or the like.
The material formed from the resin composition of the present embodiment may be used for applications in which a pattern is formed by exposure and development, or may be used in applications without exposure and development. In particular, it is suitable for applications that do not require exposure and development.
本実施形態のプリプレグは、基材(プリプレグ基材)と、本実施形態の樹脂組成物とから形成される。本実施形態のプリプレグは、例えば、本実施形態の樹脂組成物を基材に適用(例えば、含浸および/または塗布)させた後、加熱(例えば、120~220℃で2~15分乾燥させる方法等)によって半硬化させることにより得られる。この場合、基材に対する樹脂組成物の付着量、すなわち半硬化後のプリプレグの総量に対する樹脂組成物量(充填材(E)を含む)は、20~99質量%の範囲であることが好ましく、20~80質量%の範囲であることがより好ましい。 <<Prepreg>>
The prepreg of this embodiment is formed from a base material (prepreg base material) and the resin composition of this embodiment. The prepreg of the present embodiment can be produced, for example, by applying (for example, impregnating and/or applying) the resin composition of the present embodiment to a substrate and then heating (for example, drying at 120 to 220° C. for 2 to 15 minutes. etc.). In this case, the amount of the resin composition adhered to the substrate, that is, the amount of the resin composition (including the filler (E)) relative to the total amount of the prepreg after semi-curing is preferably in the range of 20 to 99% by mass. It is more preferably in the range of ~80% by mass.
低比誘電率性の基材とは、例えば、比誘電率が5.0以下(好ましくは、3.0~4.9)の基材が例示される。低誘電正接性の基材とは、例えば、誘電正接が0.006以下(好ましくは、0.001~0.005)の基材が例示される。比誘電率および誘電正接は、摂動法空洞共振器により、10GHzで測定した値とする。 The base material is not particularly limited as long as it is a base material used for various printed wiring board materials. Examples of materials for the base material include glass fibers (e.g., E-glass, D-glass, L-glass, S-glass, T-glass, Q-glass, UN-glass, NE-glass, spherical glass, etc.). , inorganic fibers other than glass (eg, quartz), and organic fibers (eg, polyimide, polyamide, polyester, liquid crystal polyester, polytetrafluoroethylene, etc.). The form of the substrate is not particularly limited, and includes woven fabric, nonwoven fabric, roving, chopped strand mat, surfacing mat, and the like. These substrates may be used alone or in combination of two or more. Among these base materials, from the viewpoint of dimensional stability, a woven fabric subjected to super-spreading treatment and stuffing treatment is preferable. A glass woven fabric having a thickness of m 2 or less is preferable, and from the viewpoint of moisture absorption and heat resistance, a glass woven fabric surface-treated with a silane coupling agent such as epoxysilane or aminosilane is preferable. From the viewpoint of electrical properties, a low dielectric glass cloth made of glass fibers exhibiting a low dielectric constant and a low dielectric loss tangent, such as L-glass, NE-glass, and Q-glass, is more preferable.
Examples of low dielectric constant substrates include substrates having a dielectric constant of 5.0 or less (preferably 3.0 to 4.9). Examples of low dielectric loss tangent substrates include substrates having a dielectric loss tangent of 0.006 or less (preferably 0.001 to 0.005). The dielectric constant and dielectric loss tangent are values measured at 10 GHz using a perturbation method cavity resonator.
本実施形態の金属箔張積層板は、本実施形態のプリプレグから形成された少なくとも1つの層と、前記プリプレグから形成された層の片面または両面に配置された金属箔とを含む。本実施形態の金属箔張積層板の作製方法としては、例えば、本実施形態のプリプレグを少なくとも1枚配置し(好ましくは2枚以上重ね)、その片面または両面に金属箔を配置して積層成形する方法が挙げられる。より詳細には、プリプレグの片面または両面に銅、アルミニウム等の金属箔を配置して積層成形することにより作製できる。プリプレグの枚数としては、1~10枚が好ましく、2~10枚がより好ましく、2~9枚がさらに好ましい。金属箔としては、プリント配線板用材料に用いられるものであれば特に限定されないが、例えば、圧延銅箔、電解銅箔等の銅箔が挙げられる。金属箔(好ましくは、銅箔)の厚さは、特に限定されず、1.5~70μm程度であってもよい。成形方法としては、プリント配線板用積層板および多層板を成形する際に通常用いられる方法が挙げられ、より詳細には多段プレス機、多段真空プレス機、連続成形機、オートクレーブ成形機等を使用して、温度180~350℃程度、加熱時間100~300分程度、面圧20~100kg/cm2程度で積層成形する方法が挙げられる。また、本実施形態のプリプレグと、別途作製した内層用の配線板とを組み合わせて積層成形することにより、多層板とすることもできる。多層板の製造方法としては、例えば、本実施形態のプリプレグ1枚の両面に35μm程度の銅箔を配置し、上記の成形方法にて積層形成した後、内層回路を形成し、この回路に黒化処理を実施して内層回路板を形成し、この後、この内層回路板と本実施形態のプリプレグとを交互に1枚ずつ配置し、さらに最外層に銅箔を配置して、上記条件にて好ましくは真空下で積層成形することにより、多層板を作製することができる。本実施形態の金属箔張積層板は、プリント配線板として好適に使用することができる。 <<Metal Foil-clad Laminate>>
The metal foil-clad laminate of this embodiment includes at least one layer formed from the prepreg of this embodiment, and a metal foil disposed on one side or both sides of the layer formed from the prepreg. As a method for producing the metal foil-clad laminate of the present embodiment, for example, at least one sheet of the prepreg of the present embodiment is arranged (preferably two or more sheets are stacked), a metal foil is arranged on one or both sides thereof, and lamination molding is performed. method. More specifically, the prepreg can be produced by arranging a metal foil such as copper or aluminum on one side or both sides of the prepreg and laminating the prepreg. The number of prepregs is preferably 1 to 10, more preferably 2 to 10, and even more preferably 2 to 9. The metal foil is not particularly limited as long as it is used as a material for printed wiring boards, and examples thereof include copper foil such as rolled copper foil and electrolytic copper foil. The thickness of the metal foil (preferably copper foil) is not particularly limited, and may be about 1.5 to 70 μm. Examples of the molding method include methods commonly used for molding laminates and multilayer boards for printed wiring boards, and more specifically, using a multi-stage press machine, a multi-stage vacuum press machine, a continuous molding machine, an autoclave molding machine, and the like. Then, there is a method of laminate molding at a temperature of about 180 to 350° C., a heating time of about 100 to 300 minutes, and a surface pressure of about 20 to 100 kg/cm 2 . A multilayer board can also be obtained by combining the prepreg of the present embodiment and a wiring board for an inner layer, which is separately prepared, and performing lamination molding. As a method for producing a multilayer board, for example, copper foil of about 35 μm is placed on both sides of one prepreg of the present embodiment, laminated by the above molding method, an inner layer circuit is formed, and black is applied to this circuit. After that, the inner layer circuit board and the prepreg of the present embodiment are alternately arranged one by one, and copper foil is arranged on the outermost layer to satisfy the above conditions. A multi-layer board can be produced by lamination molding, preferably under vacuum. The metal foil-clad laminate of this embodiment can be suitably used as a printed wiring board.
誘電正接の測定は、後述する実施例の記載に従う。
また、本実施形態の金属箔張積層板は、金属箔をエッチングにより除去した積層板を用いて測定した熱膨張係数(CTE)が低いことが好ましい。具体的には、前記CTEが10.0ppm/℃以下であることが好ましい。下限値については、0が理想であるが、0.001ppm/℃以上が実際的である。
CTEの測定は、後述する実施例の記載に従う。 In addition, the metal foil-clad laminate of the present embodiment preferably has a low dielectric loss tangent (Df) measured using a laminate from which the metal foil has been removed by etching. Specifically, the dielectric loss tangent (Df) at 10 GHz measured according to the cavity resonator perturbation method is preferably 0.0040 or less, more preferably 0.0030 or less, and 0.0025 or less. More preferably, it is even more preferably less than 0.0025. Although the lower limit of the dielectric loss tangent (Df) is not particularly defined, for example, 0.0001 or more is practical.
The measurement of the dielectric loss tangent follows the description of the examples described later.
In addition, the metal foil-clad laminate of the present embodiment preferably has a low coefficient of thermal expansion (CTE) measured using a laminate from which the metal foil has been removed by etching. Specifically, the CTE is preferably 10.0 ppm/°C or less. As for the lower limit, 0 is ideal, but 0.001 ppm/°C or more is practical.
The measurement of CTE follows description of the Example mentioned later.
本実施形態のプリント配線板は、絶縁層と、前記絶縁層の表面に配置された導体層とを含むプリント配線板であって、前記絶縁層が、本実施形態の樹脂組成物から形成された層および本実施形態のプリプレグから形成された層の少なくとも一方を含む。このようなプリント配線板は、常法に従って製造でき、その製造方法は特に限定されない。以下、プリント配線板の製造方法の一例を示す。まず上述した銅箔張積層板等の金属箔張積層板を用意する。次に、金属箔張積層板の表面にエッチング処理を施して内層回路の形成を行い、内層基板を作製する。この内層基板の内層回路表面に、必要に応じて接着強度を高めるための表面処理を行い、次いでその内層回路表面に上述したプリプレグを所要枚数重ね、さらにその外側に外層回路用の金属箔を積層し、加熱加圧して一体成形する。このようにして、内層回路と外層回路用の金属箔との間に、基材および樹脂組成物の硬化物からなる絶縁層が形成された多層の積層板が製造される。次いで、この多層の積層板にスルーホールやバイアホール用の穴あけ加工を施した後、この穴の壁面に内層回路と外層回路用の金属箔とを導通させるめっき金属皮膜を形成し、さらに外層回路用の金属箔にエッチング処理を施して外層回路を形成することで、プリント配線板が製造される。 <<Printed wiring board>>
The printed wiring board of the present embodiment is a printed wiring board including an insulating layer and a conductor layer disposed on the surface of the insulating layer, wherein the insulating layer is formed from the resin composition of the present embodiment. It includes at least one of a layer and a layer formed from the prepreg of this embodiment. Such a printed wiring board can be manufactured according to a conventional method, and the manufacturing method is not particularly limited. An example of a method for manufacturing a printed wiring board is shown below. First, a metal foil-clad laminate such as the copper foil-clad laminate described above is prepared. Next, the surface of the metal foil-clad laminate is etched to form an inner layer circuit, thereby producing an inner layer substrate. The surface of the inner layer circuit of this inner layer substrate is subjected to a surface treatment to increase the adhesive strength as necessary, and then the required number of prepregs are laminated on the surface of the inner layer circuit, and a metal foil for the outer layer circuit is laminated on the outer side. Then, heat and pressurize to integrally mold. In this way, a multi-layer laminate is produced in which an insulating layer composed of the base material and the cured product of the resin composition is formed between the inner layer circuit and the metal foil for the outer layer circuit. Next, after drilling holes for through holes and via holes in this multi-layer laminate, a plated metal film is formed on the walls of the holes for conducting the inner layer circuit and the metal foil for the outer layer circuit, and further the outer layer circuit. A printed wiring board is manufactured by etching the metal foil for the purpose to form an outer layer circuit.
また、本実施形態は、前記プリント配線板を含む半導体装置にも関する。半導体装置の詳細は、特開2021-021027号公報の段落0200~0202の記載を参酌でき、これらの内容は本明細書に組み込まれる。 The printed wiring board obtained in the above production example has an insulating layer and a conductor layer formed on the surface of the insulating layer, and the insulating layer is the resin composition of the present embodiment and / or a cured product thereof. The configuration includes That is, the prepreg of the present embodiment described above (for example, a prepreg formed from a substrate and the resin composition of the present embodiment impregnated or applied thereto), and the resin composition of the metal foil clad laminate of the present embodiment described above. A layer formed of a material serves as an insulating layer in this embodiment.
The present embodiment also relates to a semiconductor device including the printed wiring board. For details of the semiconductor device, the description in paragraphs 0200 to 0202 of JP-A-2021-021027 can be referred to, and the contents thereof are incorporated into this specification.
本実施形態の樹脂複合シートは、支持体と、前記支持体の表面に配置された本実施形態の樹脂組成物から形成された層を含む。樹脂複合シートは、ビルドアップ用フィルムまたはドライフィルムソルダーレジストとして使用することができる。樹脂複合シートの製造方法としては、特に限定されないが、例えば、上記の本実施形態の樹脂組成物を溶剤に溶解させた溶液を支持体に塗布(塗工)し乾燥することで樹脂複合シートを得る方法が挙げられる。 <<Resin Composite Sheet>>
The resin composite sheet of the present embodiment includes a support and a layer formed from the resin composition of the present embodiment arranged on the surface of the support. The resin composite sheet can be used as a build-up film or dry film solder resist. The method for producing the resin composite sheet is not particularly limited, but for example, a solution obtained by dissolving the resin composition of the present embodiment in a solvent is applied (coated) to a support and dried to form a resin composite sheet. method to obtain.
実施例で用いた測定機器等が廃番等により入手困難な場合、他の同等の性能を有する機器を用いて測定することができる。 EXAMPLES The present invention will be described more specifically with reference to examples below. Materials, usage amounts, proportions, processing details, processing procedures, etc. shown in the following examples can be changed as appropriate without departing from the gist of the present invention. Accordingly, the scope of the present invention is not limited to the specific examples shown below.
If the measuring instruments and the like used in the examples are discontinued and difficult to obtain, other instruments having equivalent performance can be used for measurement.
<<2官能フェニレンエーテルオリゴマーの合成>>
撹拌装置、温度計、空気導入管、および、じゃま板のついた12Lの縦長反応器にCuBr29.36g(42.1mmol)、N,N’-ジ-t-ブチルエチレンジアミン1.81g(10.5mmol)、n-ブチルジメチルアミン67.77g(671.0mmol)、トルエン2,600gを仕込み、反応温度40℃にて撹拌を行い、予め2,300gのメタノールに溶解させた2,2’,3,3’,5,5’-ヘキサメチル-(1,1’-ビフェノール)-4,4’-ジオール129.32g(0.48mol)、2,6-ジメチルフェノール878.4g(7.2mol)、N,N’-ジ-t-ブチルエチレンジアミン1.22g(7.2mmol)、n-ブチルジメチルアミン26.35g(260.9mmol)の混合溶液を、窒素と空気とを混合して酸素濃度8体積%に調整した混合ガスを5.2L/分の流速でバブリングを行いながら230分かけて滴下し、撹拌を行った。滴下終了後、エチレンジアミン四酢酸四ナトリウム48.06g(126.4mmol)を溶解した水1,500gを加え、反応を停止した。水層と有機層を分液し、有機層を1Nの塩酸水溶液、次いで純水で洗浄した。得られた溶液をエバポレーターで50質量%に濃縮し、2官能性フェニレンエーテルオリゴマー体(樹脂「A」)のトルエン溶液を1981g得た。樹脂「A」のGPC法によるポリスチレン換算の数平均分子量は1975、GPC法によるポリスチレン換算の重量平均分子量は3514、水酸基当量は990であった。 <Synthesis Example 1 Synthesis of Modified Polyphenylene Ether Compound>
<<Synthesis of Bifunctional Phenylene Ether Oligomer>>
9.36 g (42.1 mmol) of CuBr 2 , 1.81 g of N,N′-di-t-butylethylenediamine (10 .5 mmol), 67.77 g (671.0 mmol) of n-butyldimethylamine, and 2,600 g of toluene were charged, stirred at a reaction temperature of 40° C., and 2,2′, dissolved in 2,300 g of methanol in advance. 3,3′,5,5′-hexamethyl-(1,1′-biphenol)-4,4′-diol 129.32 g (0.48 mol), 2,6-dimethylphenol 878.4 g (7.2 mol) , N,N′-di-t-butylethylenediamine 1.22 g (7.2 mmol) and n-butyldimethylamine 26.35 g (260.9 mmol) were mixed with nitrogen and air to give an oxygen concentration of 8. A mixed gas adjusted to vol % was added dropwise over 230 minutes while bubbling at a flow rate of 5.2 L/min, followed by stirring. After completion of dropping, 1,500 g of water in which 48.06 g (126.4 mmol) of tetrasodium ethylenediaminetetraacetate was dissolved was added to stop the reaction. The aqueous layer and the organic layer were separated, and the organic layer was washed with a 1N hydrochloric acid aqueous solution and then with pure water. The resulting solution was concentrated to 50% by mass with an evaporator to obtain 1981 g of a toluene solution of a bifunctional phenylene ether oligomer (resin "A"). Resin "A" had a polystyrene-equivalent number-average molecular weight of 1975, a polystyrene-equivalent weight-average molecular weight of 3514, and a hydroxyl equivalent of 990 by GPC.
撹拌装置、温度計、および還流管を備えた反応器に樹脂「A」のトルエン溶液833.4g、ビニルベンジルクロライド(AGCセイミケミカル社製、「CMS-P」)76.7g、塩化メチレン1,600g、ベンジルジメチルアミン6.2g、純水199.5g、30.5質量%のNaOH水溶液83.6gを仕込み、反応温度40℃で撹拌を行った。24時間撹拌を行った後、有機層を1Nの塩酸水溶液、次いで純水で洗浄した。得られた溶液をエバポレーターで濃縮し、メタノール中へ滴下して固形化を行い、濾過により固体を回収、真空乾燥して変性ポリフェニレンエーテル化合物450.1gを得た。変性ポリフェニレンエーテル化合物のGPC法によるポリスチレン換算の数平均分子量は2250、GPC法によるポリスチレン換算の重量平均分子量は3920、ビニル基当量は1189g/ビニル基であった。 <<Synthesis of Modified Polyphenylene Ether Compound>>
A reactor equipped with a stirrer, a thermometer, and a reflux tube was charged with 833.4 g of a toluene solution of resin "A", 76.7 g of vinylbenzyl chloride (manufactured by AGC Seimi Chemical Co., Ltd., "CMS-P"), methylene chloride 1. 600 g, 6.2 g of benzyldimethylamine, 199.5 g of pure water, and 83.6 g of 30.5% by mass NaOH aqueous solution were charged and stirred at a reaction temperature of 40.degree. After stirring for 24 hours, the organic layer was washed with a 1N hydrochloric acid aqueous solution and then with pure water. The resulting solution was concentrated by an evaporator and added dropwise to methanol for solidification. The solid was recovered by filtration and dried in vacuo to obtain 450.1 g of a modified polyphenylene ether compound. The modified polyphenylene ether compound had a polystyrene-equivalent number average molecular weight by GPC method of 2250, a polystyrene-equivalent weight average molecular weight by GPC method of 3920, and a vinyl group equivalent of 1189 g/vinyl group.
α-ナフトールアラルキル樹脂(SN495V、OH基当量:236g/eq.、新日鐵化学(株)製:ナフトールアラルキルの繰り返し単位数は1~5のものが含まれる。)0.47モル(OH基換算)を、クロロホルム500mLに溶解させ、この溶液にトリエチルアミン0.7モルを添加し、溶液1を作製した。温度を-10℃に保ちながら、反応器内に仕込んだ0.93モルの塩化シアンのクロロホルム溶液300gに、溶液1を1.5時間かけて滴下し、滴下終了後、30分撹拌した。その後、さらに、0.1モルのトリエチルアミンとクロロホルム30gの混合溶液を反応器内に滴下し、30分撹拌して反応を完結させた。副生したトリエチルアミンの塩酸塩を反応液から濾別した後、得られた濾液を0.1N塩酸500mLで洗浄した後、水500mLでの洗浄を4回繰り返した。これを硫酸ナトリウムにより乾燥した後、75℃でエバポレートし、さらに90℃で減圧脱気することにより、褐色固形の式(S1)で表されるα-ナフトールアラルキル型シアン酸エステル化合物(式中のRC1~RC4はすべて水素原子であり、ncは1~5の混合物である。)を得た。得られたα-ナフトールアラルキル型シアン酸エステル化合物を赤外吸収スペクトルにより分析したところ、2264cm-1付近にシアン酸エステル基の吸収が確認された。
α-Naphthol aralkyl resin (SN495V, OH group equivalent: 236 g/eq., manufactured by Nippon Steel Chemical Co., Ltd.: Naphthol aralkyl having repeating units of 1 to 5 are included.) 0.47 mol (OH group equivalent) was dissolved in 500 mL of chloroform, and 0.7 mol of triethylamine was added to this solution to prepare a solution 1. While maintaining the temperature at −10° C., Solution 1 was added dropwise over 1.5 hours to 300 g of a 0.93 mol chloroform solution of cyanogen chloride charged in the reactor, and the mixture was stirred for 30 minutes after completion of the dropwise addition. Thereafter, a mixed solution of 0.1 mol of triethylamine and 30 g of chloroform was added dropwise into the reactor and stirred for 30 minutes to complete the reaction. After the by-produced triethylamine hydrochloride was filtered off from the reaction solution, the resulting filtrate was washed with 500 mL of 0.1N hydrochloric acid, and then washed with 500 mL of water four times. After drying this with sodium sulfate, it was evaporated at 75° C. and further degassed under reduced pressure at 90° C. to give a brown solid α-naphthol aralkyl cyanate ester compound represented by the formula (S1) (in the formula R C1 to R C4 are all hydrogen atoms, and n c is a mixture of 1 to 5.). When the obtained α-naphthol aralkyl cyanate ester compound was analyzed by infrared absorption spectrum, absorption of the cyanate ester group was confirmed near 2264 cm −1 .
ジビニルベンゼン2.25モル(292.9g)、エチルビニルベンゼン1.32モル(172.0g)、スチレン11.43モル(1190.3g)、酢酸n-プロピル15.0モル(1532.0g)を反応器内に投入し、70℃で600ミリモルの三フッ化ホウ素のジエチルエーテル錯体を添加し、4時間反応させた。重合反応を炭酸水素ナトリウム水溶液で停止させた後、純水で3回油層を洗浄し、60℃で減圧脱揮し、式(V)で表される構成単位を有する重合体(va)を回収した。得られた式(V)で表される構成単位を有する重合体(va)を秤量して、式(V)で表される構成単位を有する重合体(va)860.8gが得られたことを確認した。 <Synthesis Example 3 Synthesis of Polymer (va) Having Structural Unit Represented by Formula (V)>
Divinylbenzene 2.25 mol (292.9 g), ethylvinylbenzene 1.32 mol (172.0 g), styrene 11.43 mol (1190.3 g), n-propyl acetate 15.0 mol (1532.0 g) The reactor was charged, 600 millimoles of a diethyl ether complex of boron trifluoride was added at 70° C., and the reaction was allowed to proceed for 4 hours. After terminating the polymerization reaction with an aqueous sodium hydrogencarbonate solution, the oil layer was washed three times with pure water and devolatilized under reduced pressure at 60°C to recover the polymer (va) having the structural unit represented by formula (V). bottom. The obtained polymer (va) having a structural unit represented by formula (V) was weighed to obtain 860.8 g of polymer (va) having a structural unit represented by formula (V). It was confirmed.
ジビニルベンゼン由来の構成単位:20.9モル%(24.3質量%)
エチルビニルベンゼン由来の構成単位:9.1モル%(10.7質量%)
スチレンに由来する構成単位:70.0モル%(65.0質量%)
また、ジビニルベンゼン由来の残存ビニル基をもつ構成単位は、16.7モル%(18.5質量%)であった。 The resulting polymer (va) having a structural unit represented by formula (V) had a number average molecular weight Mn of 2,060, a weight average molecular weight Mw of 30,700, and a monodispersity Mw/Mn of 14.9. there were. By conducting 13 C-NMR and 1 H-NMR analysis, the polymer (va) having the structural unit represented by the formula (V) has resonance lines derived from each monomer unit used as a starting material. observed. Based on the NMR measurement results and the GC analysis results, the ratio of each monomer unit (structural unit derived from each raw material) in the polymer (va) having the structural unit represented by formula (V) is as follows. calculated to
Structural unit derived from divinylbenzene: 20.9 mol% (24.3% by mass)
Structural unit derived from ethylvinylbenzene: 9.1 mol% (10.7% by mass)
Structural unit derived from styrene: 70.0 mol% (65.0% by mass)
Also, the structural unit having a residual vinyl group derived from divinylbenzene was 16.7 mol % (18.5 mass %).
重量平均分子量(Mw)および数平均分子量(Mn)は、ゲルパーミエーションクロマトグラフィ(GPC)法によって測定した。送液ポンプ(島津製作所社製、LC-20AD)、示差屈折率検出器(島津製作所社製、RID-10A)、GPCカラム(昭和電工社製、GPC KF-801、802、803、804)を使用し、溶媒にテトラヒドロフラン、流量1.0ml/min、カラム温度40℃、単分散ポリスチレンによる検量線を用いて行った。 <Measurement of Weight Average Molecular Weight and Number Average Molecular Weight>
Weight average molecular weight (Mw) and number average molecular weight (Mn) were measured by gel permeation chromatography (GPC) method. A liquid feed pump (manufactured by Shimadzu Corporation, LC-20AD), a differential refractive index detector (manufactured by Shimadzu Corporation, RID-10A), a GPC column (manufactured by Showa Denko Corporation, GPC KF-801, 802, 803, 804). tetrahydrofuran was used as the solvent, the flow rate was 1.0 ml/min, the column temperature was 40°C, and a calibration curve using monodisperse polystyrene was used.
熱可塑性エラストマーのガラス転移温度(Tanδ)は、JIS K 7244-1:1996に準拠して測定した。前記ガラス転移温度(Tanδ)は硬化物の状態で測定した。 <Measurement of glass transition temperature>
The glass transition temperature (Tan δ) of the thermoplastic elastomer was measured according to JIS K 7244-1:1996. The glass transition temperature (Tan δ) was measured in the state of the cured product.
上記合成例1で得られた変性ポリフェニレンエーテル化合物30質量部、マレイミド化合物(日本化薬株式会社製、MIR-3000-70MT、式(M3)で表される化合物に相当)25質量部、シアン酸エステル化合物(合成例2で得られたナフトールアラルキル型シアン酸エステル化合物(SNCN))10質量部、α-メチルスチレンオリゴマー(KA3085(商品名)、重量平均分子量:664、イーストマンケミカル株式会社製)5質量部、リン系難燃剤(PX-200、大八化学工業株式会社)15質量部、ランダム共重合ブロックを有する水添スチレン系熱可塑性エラストマー((SEBS)S.O.E.(登録商標)S1605、Mn250000、ガラス転移温度(Tanδ)19℃、旭化成株式会社製)15質量部、シリカ(株式会社アドマテックス社製、SC2050-MNU)100質量部を混合し、メチルエチルケトンで固形分を65質量%に希釈しワニスを得た。なお、各成分の配合量は、固形分量を示す。 Example 1
30 parts by mass of the modified polyphenylene ether compound obtained in Synthesis Example 1, a maleimide compound (manufactured by Nippon Kayaku Co., Ltd., MIR-3000-70MT, corresponding to the compound represented by formula (M3)) 25 parts by mass, cyanic acid Ester compound (naphthol aralkyl-type cyanate ester compound (SNCN) obtained in Synthesis Example 2) 10 parts by mass, α-methylstyrene oligomer (KA3085 (trade name), weight average molecular weight: 664, manufactured by Eastman Chemical Co., Ltd.) 5 parts by mass, 15 parts by mass of a phosphorus-based flame retardant (PX-200, Daihachi Chemical Co., Ltd.), a hydrogenated styrene thermoplastic elastomer having a random copolymer block ((SEBS) S.O.E. (registered trademark ) S1605, Mn250000, glass transition temperature (Tan δ) 19 ° C., manufactured by Asahi Kasei Corporation) 15 parts by mass, silica (manufactured by Admatechs Co., Ltd., SC2050-MNU) 100 parts by mass Mixed, solid content was 65 mass with methyl ethyl ketone. % to obtain a varnish. In addition, the compounding quantity of each component shows the amount of solid content.
IPC該当品種 :2013
密度(本/25mm)タテ:46
密度(本/25mm)ヨコ:44.1
厚さ(mm) :0.070
質量(g/m2) :80.7
得られたプリプレグを1枚または8枚重ね、両面に12μm厚の電解銅箔(3EC-M3-VLP、三井金属鉱業(株)製)を配置し、圧力30kgf/cm2、温度220℃で120分間真空プレスを行い、金属箔張積層板として、絶縁層厚さ0.1mmまたは0.8mmの銅箔張積層板を得た。 This varnish is impregnated and coated on a 0.1 mm thick NE glass woven fabric (2013 S101S manufactured by Nitto Boseki Co., Ltd.), dried by heating at 165 ° C. for 5 minutes, and a prepreg with a resin composition content of 60% by mass. (thickness 0.1 mm) was obtained. The properties of the NE glass woven fabric used are as follows.
IPC applicable variety: 2013
Density (book/25mm) Vertical: 46
Density (book/25mm) Horizontal: 44.1
Thickness (mm): 0.070
Mass (g/m 2 ): 80.7
One or eight sheets of the obtained prepreg were stacked, and 12 μm thick electrolytic copper foil (3EC-M3-VLP, manufactured by Mitsui Mining & Smelting Co., Ltd. ) was placed on both sides. A vacuum press was performed for a minute to obtain a copper foil-clad laminate having an insulating layer thickness of 0.1 mm or 0.8 mm as a metal foil-clad laminate.
上記のようにして得られた銅箔張積層板(10mm×100mm×0.1mm)を用い、JIS C6481の5.7 「引きはがし強さ」の規定に準じて、銅箔ピール強度(接着力)を2回測定し、平均値を求めた。測定温度は23℃とした。
以下の通り評価した。
A:0.50kN/m以上
B:0.50kN/m未満 <Peel strength>
Using the copper foil clad laminate (10 mm × 100 mm × 0.1 mm) obtained as described above, the copper foil peel strength (adhesive strength ) was measured twice and the average value was obtained. The measurement temperature was 23°C.
It was evaluated as follows.
A: 0.50 kN/m or more B: less than 0.50 kN/m
得られた銅箔張積層板について、銅箔をエッチングにより除去した試験片(30mm×150mm×0.8mm)を作製し、摂動法空洞共振器を用いて、10GHzにおける誘電正接(Df)を測定した。測定温度は23℃とした。
摂動法空洞共振器は、アジレントテクノロジー社製品、Agilent8722ESを用いた。
以下の通り評価した。
A:0.0025未満
B:0.0025以上 <Dielectric loss tangent>
A test piece (30 mm × 150 mm × 0.8 mm) was prepared by removing the copper foil from the obtained copper foil clad laminate by etching, and the dielectric loss tangent (Df) at 10 GHz was measured using a perturbation method cavity resonator. bottom. The measurement temperature was 23°C.
The perturbation method cavity resonator used was Agilent 8722ES, a product of Agilent Technologies.
It was evaluated as follows.
A: Less than 0.0025 B: 0.0025 or more
得られた銅箔張積層板の銅箔をエッチングにより除去した後に、表面を観察し、熱可塑性エラストマー(A)と熱硬化性樹脂(B)の分離状態を確認し、下記評価基準により外観異常の有無を評価した。
以下の通り評価した。評価は5人の専門家が行い多数決とした。
A:異常なし
B:外観不良有り <Appearance after curing>
After removing the copper foil of the obtained copper foil clad laminate by etching, the surface was observed to confirm the state of separation of the thermoplastic elastomer (A) and the thermosetting resin (B), and the appearance abnormality was determined according to the following evaluation criteria. The presence or absence of
It was evaluated as follows. The evaluation was made by five experts and majority decision was taken.
A: No abnormality B: Defective appearance
得られた銅箔張積層板の銅箔をエッチングにより除去した試験片(4.5mm×10mm×0.1mm)に対し、JlS C 6481 5.19 に規定されるTMA法(熱機械分析:Thermo-Mechanical Analysis)により、試験片の熱膨張係数を測定し、その値を求めた。具体的には、上記で得られた銅箔張積層板の両面の銅箔をエッチングにより除去、ダウンサイジングした後に、熱機械分析装置(TAインスツルメント製)で30℃から340℃まで毎分10℃で昇温し、30℃から300℃における面方向の線熱膨張係数(CTE(X))(単位:ppm/℃)を測定した。測定方向は、積層板のガラスクロスの縦方向(Warp)を測定した。ppmは、体積比である。その他の詳細については、上記JIS C 6481 5.19に準拠する。
以下の通り評価した。
A1:6.0ppm/℃未満
A2:6.0ppm/℃以上7.0ppm/℃未満
A3:7.0ppm/℃以上8.0ppm/℃未満
A4:8.0ppm/℃以上9.0ppm/℃未満
A5:9.0ppm/℃以上10.0ppm/℃以下
B:10.0ppm/℃超 <Thermal expansion coefficient (CTE: Coefficient of linear thermal expansion)>
A TMA method (thermo-mechanical analysis: Thermo -Mechanical Analysis), the coefficient of thermal expansion of the test piece was measured to obtain the value. Specifically, after removing the copper foil on both sides of the copper foil clad laminate obtained above by etching and downsizing, the temperature was changed from 30° C. to 340° C. per minute with a thermomechanical analyzer (manufactured by TA Instruments). The temperature was raised at 10°C, and the linear thermal expansion coefficient (CTE(X)) (unit: ppm/°C) in the surface direction was measured from 30°C to 300°C. The measurement direction was the longitudinal direction (Warp) of the glass cloth of the laminate. ppm is the volume ratio. Other details conform to JIS C 6481 5.19 above.
It was evaluated as follows.
A1: Less than 6.0 ppm/°C A2: 6.0 ppm/°C or more and less than 7.0 ppm/°C A3: 7.0 ppm/°C or more and less than 8.0 ppm/°C A4: 8.0 ppm/°C or more and less than 9.0 ppm/°C A5: 9.0 ppm/°C or more and 10.0 ppm/°C or less B: More than 10.0 ppm/°C
実施例1において、水添スチレン系熱可塑性エラストマーを同量のランダム共重合ブロックを有する水添スチレン系熱可塑性エラストマー(SEBS、S.O.E.(登録商標)S1606、Mn200000、ガラス転移温度(Tanδ)は-11℃、旭化成株式会社製)に変更し、他は同様に行った。 Example 2
In Example 1, a hydrogenated styrene thermoplastic elastomer having the same amount of random copolymer blocks (SEBS, S.O.E. (registered trademark) S1606, Mn 200000, glass transition temperature ( Tan δ) was changed to −11° C. (manufactured by Asahi Kasei Corp.), and the other conditions were the same.
実施例1において、水添スチレン系熱可塑性エラストマーを同量のランダム共重合ブロックを有する水添スチレン系熱可塑性エラストマー(SEBS、S.O.E.(登録商標)S1613、Mn140000、ガラス転移温度(Tanδ)11℃、旭化成株式会社製)に変更し、他は同様に行った。 Example 3
In Example 1, a hydrogenated styrene thermoplastic elastomer having the same amount of random copolymer blocks (SEBS, S.O.E. (registered trademark) S1613, Mn140000, glass transition temperature ( Tan δ) was changed to 11° C., manufactured by Asahi Kasei Corporation), and the other operations were carried out in the same manner.
実施例1において、水添スチレン系熱可塑性エラストマーを同量のランダム共重合ブロックを有する水添スチレン系熱可塑性エラストマー(SEBS、S.O.E.(登録商標)S1609、Mn228000、ガラス転移温度(Tanδ)20℃、旭化成株式会社製)に変更し、他は同様に行った。 Example 4
In Example 1, a hydrogenated styrene thermoplastic elastomer having the same amount of random copolymer blocks (SEBS, S.O.E. (registered trademark) S1609, Mn 228000, glass transition temperature ( Tan δ) was changed to 20° C., manufactured by Asahi Kasei Corp.), and other conditions were the same.
実施例1において、水添スチレン系熱可塑性エラストマーの配合量を1質量部に変更し、他は同様に行った。 Example 5
In Example 1, the blending amount of the hydrogenated styrene thermoplastic elastomer was changed to 1 part by mass, and the rest was carried out in the same manner.
実施例1において、水添スチレン系熱可塑性エラストマーの配合量を30質量部に変更し、他は同様に行った。 Example 6
In Example 1, the blending amount of the hydrogenated styrene thermoplastic elastomer was changed to 30 parts by mass, and the rest was carried out in the same manner.
実施例1において、上記合成例1で得られた変性ポリフェニレンエーテル化合物を、同量の合成例3で得られた式(V)で表される構成単位を有する重合体(va)に変更し、他は同様に行った。 Example 7
In Example 1, the modified polyphenylene ether compound obtained in Synthesis Example 1 was changed to the same amount of the polymer (va) having the structural unit represented by Formula (V) obtained in Synthesis Example 3, Others did likewise.
実施例1において、水添スチレン系熱可塑性エラストマーを配合せず、マレイミド化合物(日本化薬株式会社製、MIR-3000-70MT、式(M3)で表される化合物に相当)の配合量を40質量部に変更した以外は同様に行った。 Comparative example 1
In Example 1, the hydrogenated styrene thermoplastic elastomer was not blended, and the blending amount of the maleimide compound (MIR-3000-70MT manufactured by Nippon Kayaku Co., Ltd., corresponding to the compound represented by formula (M3)) was 40. The procedure was carried out in the same manner except that the parts were changed to parts by mass.
実施例1において、水添スチレン系熱可塑性エラストマーを同量の水添スチレン系熱可塑性エラストマー(SEBS、ランダム共重合ブロックを有さない、TR2250、Mn115000、ガラス転移温度(Tanδ)90℃、JSR株式会社製)に変更し、他は同様に行った。 Comparative example 2
In Example 1, the same amount of hydrogenated styrene thermoplastic elastomer (SEBS, having no random copolymer block, TR2250, Mn115000, glass transition temperature (Tan δ) 90°C, JSR stock (manufactured by the company), and did the same for the others.
実施例1において、水添スチレン系熱可塑性エラストマーを同量の水添スチレン系熱可塑性エラストマー(SEBS、ランダム共重合ブロックを有さない、SEPTON2104、Mn83000、ガラス転移温度(Tanδ)91℃、株式会社クラレ製)に変更し、他は同様に行った。 Comparative example 3
In Example 1, the same amount of hydrogenated styrene thermoplastic elastomer (SEBS, having no random copolymer block, SEPTON 2104, Mn 83000, glass transition temperature (Tan δ) 91 ° C., manufactured by Co., Ltd. manufactured by Kuraray), and the other operations were performed in the same manner.
実施例1において、水添スチレン系熱可塑性エラストマーを同量の水添スチレン系熱可塑性エラストマー(SEBS、ランダム共重合ブロックを有さない、9901P、Mn95000、ガラス転移温度(Tanδ)90℃、JSR株式会社製)に変更し、他は同様に行った。 Comparative example 4
In Example 1, the same amount of hydrogenated styrene thermoplastic elastomer (SEBS, having no random copolymer block, 9901P, Mn 95000, glass transition temperature (Tan δ) 90 ° C., JSR stock (manufactured by the company), and did the same for the others.
実施例1において、変性ポリフェニレンエーテル化合物および水添スチレン系熱可塑性エラストマーを配合せず、マレイミド化合物(日本化薬株式会社製、MIR-3000-70MT、式(M3)で表される化合物に相当)の配合量を70質量部に変更し、他は同様に行った。 Comparative example 5
In Example 1, a maleimide compound (MIR-3000-70MT manufactured by Nippon Kayaku Co., Ltd., corresponding to the compound represented by the formula (M3)) was used without blending the modified polyphenylene ether compound and the hydrogenated styrene thermoplastic elastomer. was changed to 70 parts by mass, and the other operations were carried out in the same manner.
実施例1において、変性ポリフェニレンエーテル化合物を配合せず、マレイミド化合物(日本化薬株式会社製、MIR-3000-70MT、式(M3)で表される化合物に相当)の配合量を55質量部に変更し、他は同様に行った。 Comparative example 6
In Example 1, the modified polyphenylene ether compound was not blended, and the amount of the maleimide compound (MIR-3000-70MT manufactured by Nippon Kayaku Co., Ltd., corresponding to the compound represented by formula (M3)) was changed to 55 parts by mass. changed and others did as well.
実施例2において、変性ポリフェニレンエーテル化合物を配合せず、マレイミド化合物(日本化薬株式会社製、MIR-3000-70MT、式(M3)で表される化合物に相当)の配合量を55質量部に変更し、他は同様に行った。 Comparative example 7
In Example 2, the modified polyphenylene ether compound was not blended, and the amount of the maleimide compound (MIR-3000-70MT manufactured by Nippon Kayaku Co., Ltd., corresponding to the compound represented by formula (M3)) was changed to 55 parts by mass. changed and others did as well.
実施例3において、変性ポリフェニレンエーテル化合物を配合せず、マレイミド化合物(日本化薬株式会社製、MIR-3000-70MT、式(M3)で表される化合物に相当)の配合量を55質量部に変更し、他は同様に行った。 Comparative example 8
In Example 3, the modified polyphenylene ether compound was not blended, and the amount of the maleimide compound (MIR-3000-70MT manufactured by Nippon Kayaku Co., Ltd., corresponding to the compound represented by formula (M3)) was changed to 55 parts by mass. changed and others did as well.
Claims (20)
- 熱可塑性エラストマー(A)と、前記熱可塑性エラストマー(A)と相溶する熱硬化性樹脂(B)とを含み、
前記熱可塑性エラストマー(A)は、スチレン単量体単位と、
ブタジエン単量体単位、イソプレン単量体単位、水添ブタジエン単量体単位、および、水添イソプレン単量体単位からなる群より選択される1種以上と
を含むランダム共重合ブロックを含有し、かつ、
数平均分子量が50,000以上である、
樹脂組成物。 comprising a thermoplastic elastomer (A) and a thermosetting resin (B) compatible with the thermoplastic elastomer (A),
The thermoplastic elastomer (A) includes styrene monomer units,
butadiene monomer units, isoprene monomer units, hydrogenated butadiene monomer units, and at least one selected from the group consisting of hydrogenated isoprene monomer units; and,
A number average molecular weight of 50,000 or more,
Resin composition. - 前記熱可塑性エラストマー(A)の含有量が、樹脂固形分100質量部に対して1~40質量部である、請求項1に記載の樹脂組成物。 The resin composition according to claim 1, wherein the content of said thermoplastic elastomer (A) is 1 to 40 parts by mass with respect to 100 parts by mass of resin solid content.
- 前記熱可塑性エラストマー(A)と相溶する熱硬化性樹脂(B)が、芳香環とビニル基を含む熱硬化性樹脂である、請求項1または2に記載の樹脂組成物。 The resin composition according to claim 1 or 2, wherein the thermosetting resin (B) compatible with the thermoplastic elastomer (A) is a thermosetting resin containing an aromatic ring and a vinyl group.
- 前記熱可塑性エラストマー(A)と相溶する熱硬化性樹脂(B)が、式(V)で表される構成単位を有する重合体、および、末端に炭素-炭素不飽和二重結合を有するポリフェニレンエーテル化合物からなる群より選択される1種以上を含む、請求項1または2に記載の樹脂組成物。
- 前記熱可塑性エラストマー(A)と相溶する熱硬化性樹脂(B)の含有量が、樹脂固形分100質量部に対して10~90質量部である、請求項1または2に記載の樹脂組成物。 The resin composition according to claim 1 or 2, wherein the content of the thermosetting resin (B) compatible with the thermoplastic elastomer (A) is 10 to 90 parts by mass per 100 parts by mass of the resin solid content. thing.
- さらに、シアン酸エステル化合物、マレイミド化合物、および、エポキシ化合物からなる群より選択される1種以上を含む、請求項1または2に記載の樹脂組成物。 The resin composition according to claim 1 or 2, further comprising one or more selected from the group consisting of cyanate ester compounds, maleimide compounds, and epoxy compounds.
- 前記マレイミド化合物が、式(M0)で表される化合物、式(M1)で表される化合物、式(M2)で表される化合物、式(M3)で表される化合物、式(M4)で表される化合物、および、式(M5)で表される化合物からなる群より選択される1種以上を含む、請求項6に記載の樹脂組成物。
- 前記マレイミド化合物が、式(M1)で表される化合物および/または式(M3)で表される化合物を含む、請求項6に記載の樹脂組成物。
- さらに、難燃剤(D)を含む、請求項1または2に記載の樹脂組成物。 The resin composition according to claim 1 or 2, further comprising a flame retardant (D).
- 前記難燃剤(D)がリン系難燃剤を含む、請求項9に記載の樹脂組成物。 The resin composition according to claim 9, wherein the flame retardant (D) contains a phosphorus-based flame retardant.
- さらに、充填材(E)を含む、請求項1または2に記載の樹脂組成物。 The resin composition according to claim 1 or 2, further comprising a filler (E).
- 前記充填材(E)が、シリカ、水酸化アルミニウム、窒化アルミニウム、窒化ホウ素、フォルステライト、酸化チタン、チタン酸バリウム、チタン酸ストロンチウム、および、チタン酸カルシウムからなる群より選択される1種以上を含む、請求項11に記載の樹脂組成物。 The filler (E) contains at least one selected from the group consisting of silica, aluminum hydroxide, aluminum nitride, boron nitride, forsterite, titanium oxide, barium titanate, strontium titanate, and calcium titanate. 12. The resin composition of claim 11, comprising:
- 前記充填材(E)の含有量が、樹脂固形分100質量部に対して10~300質量部である、請求項11に記載の樹脂組成物。 The resin composition according to claim 11, wherein the content of the filler (E) is 10 to 300 parts by mass with respect to 100 parts by mass of the resin solid content.
- さらに、エチレン性不飽和基を有するモノマーまたはオリゴマーを樹脂固形分100質量部に対し、0.5~30質量部含む、請求項1または2に記載の樹脂組成物。 The resin composition according to claim 1 or 2, further comprising 0.5 to 30 parts by mass of a monomer or oligomer having an ethylenically unsaturated group with respect to 100 parts by mass of the resin solid content.
- 前記熱可塑性エラストマー(A)の含有量が、樹脂固形分100質量部に対して1~40質量部であり、
前記熱可塑性エラストマー(A)と相溶する熱硬化性樹脂(B)が、芳香環とビニル基を含む熱硬化性樹脂であり、
前記熱可塑性エラストマー(A)と相溶する熱硬化性樹脂(B)が、式(V)で表される構成単位を有する重合体、および、末端に炭素-炭素不飽和二重結合を有するポリフェニレンエーテル化合物からなる群より選択される1種以上を含み、
前記熱可塑性エラストマー(A)と相溶する熱硬化性樹脂(B)の含有量が、樹脂固形分100質量部に対して10~90質量部であり、
さらに、シアン酸エステル化合物、マレイミド化合物、および、エポキシ化合物からなる群より選択される1種以上を含み、
前記マレイミド化合物が、式(M1)で表される化合物、式(M3)で表される化合物、および、式(M5)で表される化合物からなる群より選択される1種以上を含み、
さらに、難燃剤(D)を含み、
前記難燃剤(D)がリン系難燃剤を含み、
さらに、充填材(E)を含み、
前記充填材(E)が、シリカ、水酸化アルミニウム、窒化アルミニウム、窒化ホウ素、フォルステライト、酸化チタン、チタン酸バリウム、チタン酸ストロンチウム、および、チタン酸カルシウムからなる群より選択される1種以上を含み、
前記充填材(E)の含有量が、樹脂固形分100質量部に対して10~300質量部であり、
さらに、エチレン性不飽和基を有するモノマーまたはオリゴマーを樹脂固形分100質量部に対し、0.5~30質量部含む、請求項1に記載の樹脂組成物。
The thermosetting resin (B) compatible with the thermoplastic elastomer (A) is a thermosetting resin containing an aromatic ring and a vinyl group,
The thermosetting resin (B) compatible with the thermoplastic elastomer (A) is a polymer having a structural unit represented by the formula (V), and a polyphenylene having a carbon-carbon unsaturated double bond at the end. including one or more selected from the group consisting of ether compounds,
The content of the thermosetting resin (B) compatible with the thermoplastic elastomer (A) is 10 to 90 parts by mass with respect to 100 parts by mass of the resin solid content,
Furthermore, cyanate ester compounds, maleimide compounds, and one or more selected from the group consisting of epoxy compounds,
The maleimide compound includes one or more selected from the group consisting of a compound represented by formula (M1), a compound represented by formula (M3), and a compound represented by formula (M5),
Furthermore, containing a flame retardant (D),
The flame retardant (D) contains a phosphorus-based flame retardant,
Furthermore, including a filler (E),
The filler (E) contains at least one selected from the group consisting of silica, aluminum hydroxide, aluminum nitride, boron nitride, forsterite, titanium oxide, barium titanate, strontium titanate, and calcium titanate. including
The content of the filler (E) is 10 to 300 parts by mass with respect to 100 parts by mass of the resin solid content,
2. The resin composition according to claim 1, further comprising 0.5 to 30 parts by mass of a monomer or oligomer having an ethylenically unsaturated group with respect to 100 parts by mass of the resin solid content.
- 基材と、請求項1、2または15に記載の樹脂組成物とから形成された、プリプレグ。 A prepreg formed from a base material and the resin composition according to claim 1, 2 or 15.
- 請求項16に記載のプリプレグから形成された少なくとも1つの層と、前記プリプレグから形成された層の片面または両面に配置された金属箔とを含む、金属箔張積層板。 A metal foil-clad laminate comprising at least one layer formed from the prepreg according to claim 16 and a metal foil disposed on one side or both sides of the layer formed from the prepreg.
- 支持体と、前記支持体の表面に配置された請求項1、2または15に記載の樹脂組成物から形成された層とを含む、樹脂複合シート。 A resin composite sheet comprising a support and a layer formed from the resin composition according to claim 1, 2 or 15 disposed on the surface of the support.
- 絶縁層と、前記絶縁層の表面に配置された導体層とを含むプリント配線板であって、前記絶縁層が、請求項1、2または15に記載の樹脂組成物から形成された層を含む、プリント配線板。 A printed wiring board comprising an insulating layer and a conductor layer disposed on the surface of the insulating layer, wherein the insulating layer comprises a layer formed from the resin composition according to claim 1, 2 or 15. , printed wiring board.
- 請求項19に記載のプリント配線板を含む半導体装置。 A semiconductor device comprising the printed wiring board according to claim 19.
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JP2012126844A (en) * | 2010-12-16 | 2012-07-05 | Asahi Kasei E-Materials Corp | Allylated polyphenylene ether |
JP2014001277A (en) * | 2012-06-15 | 2014-01-09 | Asahi Kasei E-Materials Corp | Curable resin composition |
WO2019230945A1 (en) * | 2018-06-01 | 2019-12-05 | 三菱瓦斯化学株式会社 | Resin composition, prepreg, metal foil-clad laminate, resin sheet and printed wiring board |
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JP2014001277A (en) * | 2012-06-15 | 2014-01-09 | Asahi Kasei E-Materials Corp | Curable resin composition |
WO2019230945A1 (en) * | 2018-06-01 | 2019-12-05 | 三菱瓦斯化学株式会社 | Resin composition, prepreg, metal foil-clad laminate, resin sheet and printed wiring board |
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