JP6048035B2 - Cresol-naphthol resin, curable resin composition, cured product thereof, and printed wiring board - Google Patents
Cresol-naphthol resin, curable resin composition, cured product thereof, and printed wiring board Download PDFInfo
- Publication number
- JP6048035B2 JP6048035B2 JP2012212426A JP2012212426A JP6048035B2 JP 6048035 B2 JP6048035 B2 JP 6048035B2 JP 2012212426 A JP2012212426 A JP 2012212426A JP 2012212426 A JP2012212426 A JP 2012212426A JP 6048035 B2 JP6048035 B2 JP 6048035B2
- Authority
- JP
- Japan
- Prior art keywords
- naphthol
- cresol
- compound
- resin
- resin composition
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 229920005989 resin Polymers 0.000 title claims description 98
- 239000011347 resin Substances 0.000 title claims description 98
- GSKNLOOGBYYDHV-UHFFFAOYSA-N 2-methylphenol;naphthalen-1-ol Chemical compound CC1=CC=CC=C1O.C1=CC=C2C(O)=CC=CC2=C1 GSKNLOOGBYYDHV-UHFFFAOYSA-N 0.000 title claims description 62
- 239000011342 resin composition Substances 0.000 title claims description 57
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 62
- 150000001875 compounds Chemical class 0.000 claims description 62
- 239000003822 epoxy resin Substances 0.000 claims description 54
- 229920000647 polyepoxide Polymers 0.000 claims description 54
- -1 β-naphthol compound Chemical class 0.000 claims description 47
- QWVGKYWNOKOFNN-UHFFFAOYSA-N o-cresol Chemical compound CC1=CC=CC=C1O QWVGKYWNOKOFNN-UHFFFAOYSA-N 0.000 claims description 44
- 239000000047 product Substances 0.000 claims description 38
- JWAZRIHNYRIHIV-UHFFFAOYSA-N beta-hydroxynaphthyl Natural products C1=CC=CC2=CC(O)=CC=C21 JWAZRIHNYRIHIV-UHFFFAOYSA-N 0.000 claims description 27
- 125000004432 carbon atom Chemical group C* 0.000 claims description 26
- 238000005259 measurement Methods 0.000 claims description 26
- 239000000539 dimer Substances 0.000 claims description 22
- 239000003960 organic solvent Substances 0.000 claims description 21
- 125000003545 alkoxy group Chemical group 0.000 claims description 20
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 20
- 125000000217 alkyl group Chemical group 0.000 claims description 16
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 16
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 14
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 10
- 239000003513 alkali Substances 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical group [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 9
- 239000003054 catalyst Substances 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 8
- 239000011889 copper foil Substances 0.000 claims description 7
- 238000009826 distribution Methods 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 7
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 claims description 7
- 239000002994 raw material Substances 0.000 claims description 7
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 6
- 239000011541 reaction mixture Substances 0.000 claims description 6
- 239000002585 base Substances 0.000 claims description 5
- 239000007795 chemical reaction product Substances 0.000 claims description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 claims description 4
- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 claims description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 4
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 4
- XNWFRZJHXBZDAG-UHFFFAOYSA-N 2-METHOXYETHANOL Chemical group COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 claims description 3
- ZNQVEEAIQZEUHB-UHFFFAOYSA-N 2-ethoxyethanol Chemical compound CCOCCO ZNQVEEAIQZEUHB-UHFFFAOYSA-N 0.000 claims description 3
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims description 3
- 239000008096 xylene Substances 0.000 claims description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 2
- KEAYESYHFKHZAL-UHFFFAOYSA-N Sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 claims description 2
- 229910052744 lithium Inorganic materials 0.000 claims description 2
- 229910000027 potassium carbonate Inorganic materials 0.000 claims description 2
- 229910052708 sodium Inorganic materials 0.000 claims description 2
- 239000011734 sodium Substances 0.000 claims description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 2
- 239000012312 sodium hydride Substances 0.000 claims description 2
- 229910000104 sodium hydride Inorganic materials 0.000 claims description 2
- 238000000034 method Methods 0.000 description 38
- 229920003986 novolac Polymers 0.000 description 32
- 239000003063 flame retardant Substances 0.000 description 30
- 238000001723 curing Methods 0.000 description 26
- 230000008859 change Effects 0.000 description 25
- 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 description 22
- 239000003795 chemical substances by application Substances 0.000 description 20
- KJCVRFUGPWSIIH-UHFFFAOYSA-N 1-naphthol Chemical compound C1=CC=C2C(O)=CC=CC2=C1 KJCVRFUGPWSIIH-UHFFFAOYSA-N 0.000 description 18
- 239000000203 mixture Substances 0.000 description 18
- 229910052751 metal Inorganic materials 0.000 description 15
- 239000002184 metal Substances 0.000 description 15
- 239000010410 layer Substances 0.000 description 14
- 150000002989 phenols Chemical class 0.000 description 13
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 12
- 239000002313 adhesive film Substances 0.000 description 12
- 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 10
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 9
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 8
- 125000003118 aryl group Chemical group 0.000 description 8
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N diphenyl Chemical compound C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 8
- 239000000945 filler Substances 0.000 description 8
- 239000011521 glass Substances 0.000 description 8
- 229910052736 halogen Inorganic materials 0.000 description 8
- 150000002367 halogens Chemical class 0.000 description 8
- 239000005011 phenolic resin Substances 0.000 description 8
- 235000013824 polyphenols Nutrition 0.000 description 8
- 239000004065 semiconductor Substances 0.000 description 8
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 7
- 150000003839 salts Chemical class 0.000 description 7
- 239000002904 solvent Substances 0.000 description 7
- 239000000758 substrate Substances 0.000 description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- 229920000877 Melamine resin Polymers 0.000 description 6
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 239000011810 insulating material Substances 0.000 description 6
- 238000010030 laminating Methods 0.000 description 6
- 239000011572 manganese Substances 0.000 description 6
- 230000001681 protective effect Effects 0.000 description 6
- 239000000654 additive Substances 0.000 description 5
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 5
- 239000007864 aqueous solution Substances 0.000 description 5
- 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 5
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 5
- 239000000347 magnesium hydroxide Substances 0.000 description 5
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 5
- 229920001296 polysiloxane Polymers 0.000 description 5
- 229910000679 solder Inorganic materials 0.000 description 5
- 239000002966 varnish Substances 0.000 description 5
- 238000005406 washing Methods 0.000 description 5
- 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 4
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- 239000004793 Polystyrene Substances 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 4
- 239000004305 biphenyl Substances 0.000 description 4
- 235000010290 biphenyl Nutrition 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 229930003836 cresol Natural products 0.000 description 4
- 150000007973 cyanuric acids Chemical class 0.000 description 4
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- 239000005350 fused silica glass Substances 0.000 description 4
- 150000002484 inorganic compounds Chemical class 0.000 description 4
- 239000012796 inorganic flame retardant Substances 0.000 description 4
- 229910010272 inorganic material Inorganic materials 0.000 description 4
- 238000003475 lamination Methods 0.000 description 4
- VSWALKINGSNVAR-UHFFFAOYSA-N naphthalen-1-ol;phenol Chemical compound OC1=CC=CC=C1.C1=CC=C2C(O)=CC=CC2=C1 VSWALKINGSNVAR-UHFFFAOYSA-N 0.000 description 4
- 238000006386 neutralization reaction Methods 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 229910052698 phosphorus Inorganic materials 0.000 description 4
- 229920002223 polystyrene Polymers 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 4
- GZVHEAJQGPRDLQ-UHFFFAOYSA-N 6-phenyl-1,3,5-triazine-2,4-diamine Chemical compound NC1=NC(N)=NC(C=2C=CC=CC=2)=N1 GZVHEAJQGPRDLQ-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 3
- 238000011049 filling Methods 0.000 description 3
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 3
- 239000011256 inorganic filler Substances 0.000 description 3
- 229910003475 inorganic filler Inorganic materials 0.000 description 3
- 229910000000 metal hydroxide Inorganic materials 0.000 description 3
- 150000004692 metal hydroxides Chemical class 0.000 description 3
- 150000004780 naphthols Chemical class 0.000 description 3
- 150000002903 organophosphorus compounds Chemical class 0.000 description 3
- 239000011574 phosphorus Substances 0.000 description 3
- 150000003018 phosphorus compounds Chemical class 0.000 description 3
- 230000009257 reactivity Effects 0.000 description 3
- GHMLBKRAJCXXBS-UHFFFAOYSA-N resorcinol Chemical compound OC1=CC=CC(O)=C1 GHMLBKRAJCXXBS-UHFFFAOYSA-N 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 229920001187 thermosetting polymer Polymers 0.000 description 3
- UGZADUVQMDAIAO-UHFFFAOYSA-L zinc hydroxide Chemical compound [OH-].[OH-].[Zn+2] UGZADUVQMDAIAO-UHFFFAOYSA-L 0.000 description 3
- 229910021511 zinc hydroxide Inorganic materials 0.000 description 3
- 229940007718 zinc hydroxide Drugs 0.000 description 3
- FPZWZCWUIYYYBU-UHFFFAOYSA-N 2-(2-ethoxyethoxy)ethyl acetate Chemical compound CCOCCOCCOC(C)=O FPZWZCWUIYYYBU-UHFFFAOYSA-N 0.000 description 2
- GJYCVCVHRSWLNY-UHFFFAOYSA-N 2-butylphenol Chemical compound CCCCC1=CC=CC=C1O GJYCVCVHRSWLNY-UHFFFAOYSA-N 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical class [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 2
- 150000004786 2-naphthols Chemical class 0.000 description 2
- ULKLGIFJWFIQFF-UHFFFAOYSA-N 5K8XI641G3 Chemical compound CCC1=NC=C(C)N1 ULKLGIFJWFIQFF-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- NJYZCEFQAIUHSD-UHFFFAOYSA-N acetoguanamine Chemical compound CC1=NC(N)=NC(N)=N1 NJYZCEFQAIUHSD-UHFFFAOYSA-N 0.000 description 2
- XFSBVAOIAHNAPC-WSORPINJSA-N acetylbenzoylaconine Chemical compound O([C@H]1[C@]2(O)C[C@H]3C45[C@@H]6[C@@H]([C@@]([C@H]31)(OC(C)=O)[C@@H](O)[C@@H]2OC)[C@H](OC)C4[C@]([C@@H](C[C@H]5OC)O)(COC)CN6CC)C(=O)C1=CC=CC=C1 XFSBVAOIAHNAPC-WSORPINJSA-N 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- ZRIUUUJAJJNDSS-UHFFFAOYSA-N ammonium phosphates Chemical compound [NH4+].[NH4+].[NH4+].[O-]P([O-])([O-])=O ZRIUUUJAJJNDSS-UHFFFAOYSA-N 0.000 description 2
- 239000004760 aramid Substances 0.000 description 2
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 2
- 229920003235 aromatic polyamide Polymers 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910000416 bismuth oxide Inorganic materials 0.000 description 2
- PXKLMJQFEQBVLD-UHFFFAOYSA-N bisphenol F Chemical compound C1=CC(O)=CC=C1CC1=CC=C(O)C=C1 PXKLMJQFEQBVLD-UHFFFAOYSA-N 0.000 description 2
- 150000001639 boron compounds Chemical class 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 125000000853 cresyl group Chemical group C1(=CC=C(C=C1)C)* 0.000 description 2
- GDVKFRBCXAPAQJ-UHFFFAOYSA-A dialuminum;hexamagnesium;carbonate;hexadecahydroxide Chemical compound [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Al+3].[Al+3].[O-]C([O-])=O GDVKFRBCXAPAQJ-UHFFFAOYSA-A 0.000 description 2
- PPQREHKVAOVYBT-UHFFFAOYSA-H dialuminum;tricarbonate Chemical compound [Al+3].[Al+3].[O-]C([O-])=O.[O-]C([O-])=O.[O-]C([O-])=O PPQREHKVAOVYBT-UHFFFAOYSA-H 0.000 description 2
- TYIXMATWDRGMPF-UHFFFAOYSA-N dibismuth;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Bi+3].[Bi+3] TYIXMATWDRGMPF-UHFFFAOYSA-N 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
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- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 2
- 229910001701 hydrotalcite Inorganic materials 0.000 description 2
- 229960001545 hydrotalcite Drugs 0.000 description 2
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Chemical compound OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 description 2
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 2
- 239000001095 magnesium carbonate Substances 0.000 description 2
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 2
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- 150000004706 metal oxides Chemical class 0.000 description 2
- 239000012778 molding material Substances 0.000 description 2
- 239000005078 molybdenum compound Substances 0.000 description 2
- 150000002752 molybdenum compounds Chemical class 0.000 description 2
- JKQOBWVOAYFWKG-UHFFFAOYSA-N molybdenum trioxide Chemical compound O=[Mo](=O)=O JKQOBWVOAYFWKG-UHFFFAOYSA-N 0.000 description 2
- 125000001624 naphthyl group Chemical group 0.000 description 2
- 230000003472 neutralizing effect Effects 0.000 description 2
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
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- 239000010452 phosphate Substances 0.000 description 2
- 235000021317 phosphate Nutrition 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- LLHKCFNBLRBOGN-UHFFFAOYSA-N propylene glycol methyl ether acetate Chemical compound COCC(C)OC(C)=O LLHKCFNBLRBOGN-UHFFFAOYSA-N 0.000 description 2
- 229960001755 resorcinol Drugs 0.000 description 2
- 238000007788 roughening Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000001488 sodium phosphate Substances 0.000 description 2
- 229910000162 sodium phosphate Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 150000003512 tertiary amines Chemical class 0.000 description 2
- 230000000930 thermomechanical effect Effects 0.000 description 2
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- 150000008442 polyphenolic compounds Chemical class 0.000 description 1
- 229920001955 polyphenylene ether Polymers 0.000 description 1
- 239000001205 polyphosphate Substances 0.000 description 1
- 235000011176 polyphosphates Nutrition 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000010125 resin casting Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- AJPJDKMHJJGVTQ-UHFFFAOYSA-M sodium dihydrogen phosphate Chemical compound [Na+].OP(O)([O-])=O AJPJDKMHJJGVTQ-UHFFFAOYSA-M 0.000 description 1
- 239000004328 sodium tetraborate Substances 0.000 description 1
- 235000010339 sodium tetraborate Nutrition 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- KCNSDMPZCKLTQP-UHFFFAOYSA-N tetraphenylen-1-ol Chemical compound C12=CC=CC=C2C2=CC=CC=C2C2=CC=CC=C2C2=C1C=CC=C2O KCNSDMPZCKLTQP-UHFFFAOYSA-N 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- FOZHTJJTSSSURD-UHFFFAOYSA-J titanium(4+);dicarbonate Chemical compound [Ti+4].[O-]C([O-])=O.[O-]C([O-])=O FOZHTJJTSSSURD-UHFFFAOYSA-J 0.000 description 1
- SRPWOOOHEPICQU-UHFFFAOYSA-N trimellitic anhydride Chemical compound OC(=O)C1=CC=C2C(=O)OC(=O)C2=C1 SRPWOOOHEPICQU-UHFFFAOYSA-N 0.000 description 1
- AAAQKTZKLRYKHR-UHFFFAOYSA-N triphenylmethane Chemical compound C1=CC=CC=C1C(C=1C=CC=CC=1)C1=CC=CC=C1 AAAQKTZKLRYKHR-UHFFFAOYSA-N 0.000 description 1
- BIKXLKXABVUSMH-UHFFFAOYSA-N trizinc;diborate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]B([O-])[O-].[O-]B([O-])[O-] BIKXLKXABVUSMH-UHFFFAOYSA-N 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 229910001930 tungsten oxide Inorganic materials 0.000 description 1
- 150000003739 xylenols Chemical class 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 239000011667 zinc carbonate Substances 0.000 description 1
- 229910000010 zinc carbonate Inorganic materials 0.000 description 1
- 235000004416 zinc carbonate Nutrition 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- BNEMLSQAJOPTGK-UHFFFAOYSA-N zinc;dioxido(oxo)tin Chemical compound [Zn+2].[O-][Sn]([O-])=O BNEMLSQAJOPTGK-UHFFFAOYSA-N 0.000 description 1
- PZRXQXJGIQEYOG-UHFFFAOYSA-N zinc;oxido(oxo)borane Chemical compound [Zn+2].[O-]B=O.[O-]B=O PZRXQXJGIQEYOG-UHFFFAOYSA-N 0.000 description 1
Images
Landscapes
- Phenolic Resins Or Amino Resins (AREA)
- Epoxy Resins (AREA)
Description
本発明は得られる硬化物の熱履歴後の耐熱性変化が少なく、低熱膨張性に優れ、プリント配線基板、半導体封止材、塗料、注型用途等に好適に用いる事が出来るクレゾール−ナフトール樹脂、これらの性能を兼備した硬化性樹脂組成物、その硬化物、及びプリント配線基板に関する。 The present invention is a cresol-naphthol resin that has little change in heat resistance after the heat history of the cured product obtained, is excellent in low thermal expansion, and can be suitably used for printed wiring boards, semiconductor encapsulants, paints, casting applications, etc. The present invention relates to a curable resin composition having these performances, a cured product thereof, and a printed wiring board.
エポキシ樹脂とフェノール性水酸基含有樹脂からなる硬化性樹脂組成物は、接着剤、成形材料、塗料、フォトレジスト材料、顕色材料等に用いられている他、得られる硬化物の優れた耐熱性や耐湿性などに優れる点から半導体封止材やプリント配線板用絶縁材料等の電気・電子分野で幅広く用いられている。 The curable resin composition comprising an epoxy resin and a phenolic hydroxyl group-containing resin is used in adhesives, molding materials, paints, photoresist materials, color developing materials, etc. Because of its excellent moisture resistance, it is widely used in the electrical and electronic fields such as semiconductor sealing materials and insulating materials for printed wiring boards.
これらの各種用途のうち、プリント配線基板の分野では、電子機器の小型化・高性能化の流れに伴い、半導体装置の配線ピッチの狭小化による高密度化の傾向が著しく、これに対応した半導体実装方法として、はんだボールにより半導体装置と基板とを接合させるフリップチップ接続方式が広く用いられている。このフリップチップ接続方式では、配線板と半導体との間にはんだボールを配置、全体を加熱して溶融接合させる所謂リフロー方式による半導体実装方式であるため、はんだリフロー時に配線版自体が高熱環境に晒され、配線板の熱収縮により、配線板と半導体を接続するはんだボールに大きな応力が発生し、配線の接続不良を起こす場合があった。その為、プリント配線板に用いられる絶縁材料には、低熱膨張率の材料が求められている。 Among these various applications, in the field of printed wiring boards, with the trend toward miniaturization and high performance of electronic equipment, there is a tendency for high density due to narrowing of the wiring pitch of semiconductor devices. As a mounting method, a flip chip connection method in which a semiconductor device and a substrate are joined by solder balls is widely used. In this flip-chip connection method, a solder ball is placed between a wiring board and a semiconductor, and the whole is heated and melt bonded to form a so-called reflow semiconductor mounting method. Therefore, the wiring plate itself is exposed to a high heat environment during solder reflow. In some cases, due to thermal contraction of the wiring board, a large stress is generated in the solder balls connecting the wiring board and the semiconductor, resulting in poor connection of the wiring. Therefore, an insulating material used for a printed wiring board is required to have a low thermal expansion coefficient.
加えて、近年、環境問題に対する法規制等により、鉛を使用しない高融点はんだが主流となっており、リフロー温度が高くなっている。それに伴い、リフロー時の絶縁材料の耐熱性変化による、プリント配線基板の反りに起因する接続不良も深刻になってきている。すなわち、リフロー時の物性変化が少ない材料が求められている。 In addition, in recent years, refractory solders that do not use lead have become mainstream due to laws and regulations for environmental problems, and the reflow temperature is high. Along with this, the connection failure due to the warp of the printed wiring board due to the heat resistance change of the insulating material during reflow is becoming serious. That is, a material with little change in physical properties during reflow is desired.
このような要求に対応するために、例えば、ナフトールとホルムアルデヒドとエピクロルヒドリンを反応させて得られるナフトールノボラック型エポキシ樹脂を主剤とした熱硬化性樹脂組成物が、低熱膨張性等の技術課題を解決するものとして提案されている（下記特許文献１参照）。
In order to meet such requirements, for example, a thermosetting resin composition based on a naphthol novolac epoxy resin obtained by reacting naphthol, formaldehyde and epichlorohydrin solves technical problems such as low thermal expansion. It has been proposed (see
然し乍ら、上記ナフトールノボラック型エポキシ樹脂は一般的なフェノールノボラック型エポキシ樹脂と比較して、骨格の剛直性のために、得られる硬化物の熱膨張率の改良効果が認められるものの、近年要求されるレベルを十分満足できるものではなく、また、熱履歴により硬化物の耐熱性が大きく変化するために、プリント配線基板用途においてリフロー後の耐熱性変化が大きく、前記したプリント配線基板の接続不良を生じやすいものであった。また、前記ナフトールノボラック型エポキシ樹脂の前駆体であるナフトールノボラック樹脂をエポキシ樹脂用硬化剤として用いた場合にも、同様に、一般的なフェノールノボラック樹脂と比較して硬化物の熱膨張率を低減する効果は認められるものの、昨今の要求レベルを満たすものではなく、熱履歴による硬化物の耐熱性変化も大きいものであった。 However, the naphthol novolac type epoxy resin is required in recent years although the effect of improving the coefficient of thermal expansion of the resulting cured product is recognized due to the rigidity of the skeleton compared to the general phenol novolac type epoxy resin. The heat resistance of the cured product greatly changes due to thermal history, and the heat resistance change after reflow is large in printed wiring board applications, resulting in poor connection of the printed wiring board. It was easy. In addition, when naphthol novolak resin, which is a precursor of the naphthol novolak type epoxy resin, is used as a curing agent for epoxy resin, the thermal expansion coefficient of the cured product is similarly reduced as compared with general phenol novolac resin. Although this effect is recognized, it does not satisfy the recent required level, and the heat resistance change of the cured product due to the heat history is large.
従って、本発明が解決しようとする課題は、その硬化物において熱履歴後の耐熱性変化が少なく、かつ、低熱膨張性を発現する硬化性樹脂組成物、その硬化物、熱履歴後の耐熱性変化が少なく低熱膨張性に優れるプリント配線基板、これらの性能を与えるフェノール性水酸基含有樹脂を提供することにある。 Accordingly, the problem to be solved by the present invention is that a curable resin composition exhibiting low thermal expansibility with little change in heat resistance after the heat history in the cured product, the cured product, and heat resistance after the heat history. It is an object of the present invention to provide a printed wiring board with little change and excellent low thermal expansion, and a phenolic hydroxyl group-containing resin that provides these performances.
本発明者らは、上記課題を解決するため、鋭意検討した結果、オルソクレゾール、β−ナフトール化合物、及びホルムアルデヒドの反応生成物であって、β−ナフトール化合物の２量体、及び特定構造の３官能化合物と４官能化合物とを所定の割合で含むクレゾール−ナフトール樹脂が、その硬化物において優れた低熱膨張性を発現すると共に、クレゾール−ナフトール樹脂自体の反応性が高まり、熱履歴後の耐熱性変化が少なくなることを見出し、本発明を完成するに至った。 As a result of intensive studies to solve the above problems, the inventors of the present invention are reaction products of orthocresol, β-naphthol compound, and formaldehyde, which are a dimer of β-naphthol compound and a specific structure of 3 The cresol-naphthol resin containing a functional compound and a tetrafunctional compound at a predetermined ratio exhibits excellent low thermal expansion in the cured product, and the reactivity of the cresol-naphthol resin itself is increased, resulting in heat resistance after thermal history. The inventors have found that the change is reduced, and have completed the present invention.
即ち、本発明は、オルソクレゾール、β−ナフトール化合物、及びホルムアルデヒドの反応生成物であって、下記構造式（１） That is, the present invention is a reaction product of orthocresol, a β-naphthol compound, and formaldehyde, which has the following structural formula (1):
で表されるβ−ナフトール化合物の２量体（ｘ２）と、
下記構造式（２）
A dimer (x2) of a β-naphthol compound represented by:
The following structural formula (2)
で表される３官能化合物（ｘ３）と、
下記構造式（３）
A trifunctional compound (x3) represented by:
The following structural formula (3)
で表される４官能化合物（ｘ４）とを必須の成分として含有し、これらの合計の含有率が、ＧＰＣ測定における面積比率で７０％以上であることを特徴とするクレゾール−ナフトール樹脂に関する。
The cresol-naphthol resin is characterized in that the tetrafunctional compound (x4) represented by the formula (1) is contained as an essential component, and the total content thereof is 70% or more in terms of area ratio in GPC measurement.
本発明は、更に、前記したクレゾール−ナフトール樹脂、及びエポキシ樹脂を必須成分とする硬化性樹脂組成物に関する。 The present invention further relates to a curable resin composition containing the aforementioned cresol-naphthol resin and epoxy resin as essential components.
本発明は、更に、前記硬化性樹脂組成物を硬化反応させてなる硬化物に関する。 The present invention further relates to a cured product obtained by curing reaction of the curable resin composition.
本発明は、更に、前記硬化性樹脂組成物に、更に有機溶剤を配合してワニス化した樹脂組成物を、補強基材に含浸し銅箔を重ねて加熱圧着させることにより得られるプリント配線基板に関する。 The present invention further provides a printed wiring board obtained by impregnating a reinforcing base material with a resin composition obtained by further blending an organic solvent with the curable resin composition, and then laminating the copper foil and heat-pressing it. About.
本発明によれば、その硬化物において熱履歴後の耐熱性変化が少なく、かつ、低熱膨張性を発現する硬化性樹脂組成物、その硬化物、熱履歴後の耐熱性変化が少なく低熱膨張性に優れるプリント配線基板、これらの性能を与えるクレゾール−ナフトール樹脂を提供できる。 According to the present invention, there is little change in heat resistance after thermal history in the cured product, and the curable resin composition that exhibits low thermal expansion, the cured product, low thermal expansion property after little heat resistance change after thermal history. Printed wiring board having excellent performance, and a cresol-naphthol resin that provides these performances.
以下、本発明を詳細に説明する。
本発明のクレゾール−ナフトール樹脂は、オルソクレゾール、β−ナフトール化合物、及びホルムアルデヒドの反応生成物であって、
下記構造式（１）
Hereinafter, the present invention will be described in detail.
The cresol-naphthol resin of the present invention is a reaction product of ortho-cresol, β-naphthol compound, and formaldehyde,
The following structural formula (1)
で表されるβ−ナフトール化合物の２量体（ｘ２）と、
下記構造式（２）
A dimer (x2) of a β-naphthol compound represented by:
The following structural formula (2)
で表される３官能化合物（ｘ３）と、
下記構造式（３）
A trifunctional compound (x3) represented by:
The following structural formula (3)
で表される４官能化合物（ｘ４）とを必須の成分として含有し、これらの合計の含有率が、ＧＰＣ測定における面積比率で７０％以上であることを特徴特徴としている。
Is contained as an essential component, and the total content thereof is 70% or more in terms of an area ratio in GPC measurement.
即ち、本発明のクレゾール−ナフトール樹脂は、オルソクレゾール、β−ナフトール化合物、及びホルムアルデヒドを原料とする反応生成物であって、種々の樹脂構造のものを含む混合物であり、そのなかに、前記２量体（ｘ２）、前記３官能化合物（ｘ３）、及び前記４官能化合物（ｘ４）を、合計で６５％以上という高濃度で含むことを特徴とするものである。 That is, the cresol-naphthol resin of the present invention is a reaction product using ortho-cresol, β-naphthol compound, and formaldehyde as raw materials, and is a mixture containing various resin structures. The polymer (x2), the trifunctional compound (x3), and the tetrafunctional compound (x4) are contained at a high concentration of 65% or more in total.
このうち前記４官能化合物（ｘ４）はフェノール性水酸基の含有率が高く、かつ、該フェノール性水酸基自体の反応性が非常に高いことから、これを含有することにより硬化物がより高密に架橋されたものとなり、熱履歴による耐熱性変化を抑制する効果がより一層顕著なものとなる。 Among these, the tetrafunctional compound (x4) has a high content of phenolic hydroxyl groups and the reactivity of the phenolic hydroxyl groups themselves is very high. The effect which suppresses the heat resistance change by a heat history becomes still more remarkable.
また、前記３官能化合物（ｘ３）や前記４官能化合物（ｘ４）は、その分子構造中にクレゾール骨格を有することから溶剤溶解性に優れワニスの調整が容易となる効果を奏するものの、クレゾール骨格自体が配向性に乏しいことから、その硬化物は低熱膨張性に優れるものとならない。本発明では、前記３官能化合物（ｘ３）及び前記４官能化合物（ｘ４）と共に前記２量体（ｘ２）を併用し、かつ、これらの合計の含有率をＧＰＣによる面積比率で６５％以上となる範囲に調節することにより、ワニス調整の容易さを何等阻害することなく、優れた低熱膨張性を発現させることができる。このように本発明は、前記３官能化合物（ｘ３）や前記４官能化合物（ｘ４）の溶剤溶解性に優れワニス調整が容易であるという特徴を活かし、本来的に分子配向性が高くワニス調整が困難な前記２量体（ｙ）を使用しながらも、ワニス調整が容易であり、かつ、優れた低熱膨張性を発現できるという特徴を有するものである。 In addition, the trifunctional compound (x3) and the tetrafunctional compound (x4) have a cresol skeleton in the molecular structure and thus have an effect of being excellent in solvent solubility and easy adjustment of the varnish, but the cresol skeleton itself However, the cured product does not have an excellent low thermal expansion property. In the present invention, the dimer (x2) is used in combination with the trifunctional compound (x3) and the tetrafunctional compound (x4), and the total content thereof is 65% or more in terms of area ratio by GPC. By adjusting to the range, an excellent low thermal expansion property can be expressed without hindering the ease of varnish adjustment. Thus, the present invention takes advantage of the excellent solvent solubility of the trifunctional compound (x3) and the tetrafunctional compound (x4) and easy varnish adjustment, and inherently has high molecular orientation and varnish adjustment. While using the dimer (y), which is difficult, it is easy to adjust the varnish and can exhibit excellent low thermal expansibility.
本発明のクレゾール−ナフトール樹脂において前記２量体（ｘ２）、前記３官能化合物（ｘ３）及び前記４官能化合物（ｘ４）の合計の含有率は、前述の通り、ＧＰＣ測定における面積比率で７０％以上であり、７０％未満の場合には、前記した分子配向性の効果や反応性に優れる効果が十分に発揮されないため、熱膨張率や熱履歴後の耐熱性変化が大きい硬化物となる。中でも、熱膨張率及び熱履歴後の耐熱性変化がより小さい硬化物が得られることから、前記２量体（ｘ２）、前記３官能化合物（ｘ３）及び前記４官能化合物（ｘ４）の合計の含有率が８０％以上であることが好ましく、９０％以上であることが特に好ましい。 In the cresol-naphthol resin of the present invention, the total content of the dimer (x2), the trifunctional compound (x3) and the tetrafunctional compound (x4) is 70% in terms of area ratio in GPC measurement as described above. When the amount is less than 70%, the above-described effects of molecular orientation and reactivity are not sufficiently exerted, so that a cured product having a large coefficient of thermal expansion and a change in heat resistance after heat history is obtained. Among them, since a cured product having a smaller coefficient of thermal expansion and heat resistance after thermal history is obtained, the total of the dimer (x2), the trifunctional compound (x3), and the tetrafunctional compound (x4). The content is preferably 80% or more, and particularly preferably 90% or more.
また、本発明のクレゾール−ナフトール樹脂における前記２量体（ｘ２）の含有率は、低熱膨張性に優れ、熱履歴後の耐熱性変化も小さい硬化物が得られることから、ＧＰＣ測定における面積比率で５〜４５％の範囲であることが好ましく、１０〜４０％の範囲であることがより好ましい。 Further, the content ratio of the dimer (x2) in the cresol-naphthol resin of the present invention is excellent in low thermal expansibility, and a cured product having a small heat resistance change after heat history is obtained. Is preferably in the range of 5 to 45%, more preferably in the range of 10 to 40%.
本発明のクレゾール−ナフトール樹脂における前記３官能化合物（ｘ３）の含有率は、低熱膨張性に優れ、熱履歴後の耐熱性変化も小さい硬化物が得られることから、ＧＰＣ測定における面積比率で３０〜７０％の範囲であることが好ましく、４０〜６０％の範囲であることがより好ましい。 The content ratio of the trifunctional compound (x3) in the cresol-naphthol resin of the present invention is excellent in low thermal expansibility, and a cured product having a small heat resistance change after heat history can be obtained. Therefore, the area ratio in GPC measurement is 30. It is preferably in the range of -70%, more preferably in the range of 40-60%.
本発明のクレゾール−ナフトール樹脂における前記４官能化合物（ｘ４）の含有率は、低熱膨張性に優れ、熱履歴後の耐熱性変化も小さい硬化物が得られることから、ＧＰＣ測定における面積比率で１０〜５０％の範囲であることが好ましく、１５〜４０％の範囲であることがより好ましい。 The content ratio of the tetrafunctional compound (x4) in the cresol-naphthol resin of the present invention is 10% in terms of area ratio in GPC measurement because a cured product having excellent low thermal expansion property and small heat resistance change after heat history is obtained. It is preferably in the range of -50%, more preferably in the range of 15-40%.
本発明における前記２量体（ｘ２）、前記３官能化合物（ｘ３）及び前記４官能化合物（ｘ４）のクレゾール−ナフトール樹脂中の含有率とは、下記の条件によるＧＰＣ測定によって計算される、本発明のクレゾール−ナフトール樹脂の全ピーク面積に対する、前記各構造体のピーク面積の存在割合である。
＜ＧＰＣ測定条件＞
測定装置 ：東ソー株式会社製「ＨＬＣ−８２２０ ＧＰＣ」、
カラム：東ソー株式会社製ガードカラム「ＨＸＬ−Ｌ」
＋東ソー株式会社製「ＴＳＫ−ＧＥＬ Ｇ２０００ＨＸＬ」
＋東ソー株式会社製「ＴＳＫ−ＧＥＬ Ｇ２０００ＨＸＬ」
＋東ソー株式会社製「ＴＳＫ−ＧＥＬ Ｇ３０００ＨＸＬ」
＋東ソー株式会社製「ＴＳＫ−ＧＥＬ Ｇ４０００ＨＸＬ」
検出器： ＲＩ（示差屈折計）
データ処理：東ソー株式会社製「ＧＰＣ−８０２０モデルIIバージョン４．１０」
測定条件： カラム温度 ４０℃
展開溶媒 テトラヒドロフラン
流速 １．０ｍｌ／分
標準 ： 前記「ＧＰＣ−８０２０モデルIIバージョン４．１０」の測定マニュアルに準拠して、分子量が既知の下記の単分散ポリスチレンを用いた。
（使用ポリスチレン）
東ソー株式会社製「Ａ−５００」
東ソー株式会社製「Ａ−１０００」
東ソー株式会社製「Ａ−２５００」
東ソー株式会社製「Ａ−５０００」
東ソー株式会社製「Ｆ−１」
東ソー株式会社製「Ｆ−２」
東ソー株式会社製「Ｆ−４」
東ソー株式会社製「Ｆ−１０」
東ソー株式会社製「Ｆ−２０」
東ソー株式会社製「Ｆ−４０」
東ソー株式会社製「Ｆ−８０」
東ソー株式会社製「Ｆ−１２８」
試料 ： 樹脂固形分換算で１．０質量％のテトラヒドロフラン溶液をマイクロフィルターでろ過したもの（５０μｌ）。
In the present invention, the content of the dimer (x2), the trifunctional compound (x3), and the tetrafunctional compound (x4) in the cresol-naphthol resin is calculated by GPC measurement under the following conditions. It is an abundance ratio of the peak area of each structure to the total peak area of the cresol-naphthol resin of the invention.
<GPC measurement conditions>
Measuring device: “HLC-8220 GPC” manufactured by Tosoh Corporation
Column: Guard column “HXL-L” manufactured by Tosoh Corporation
+ "TSK-GEL G2000HXL" manufactured by Tosoh Corporation
+ "TSK-GEL G2000HXL" manufactured by Tosoh Corporation
+ Tosoh Corporation “TSK-GEL G3000HXL”
+ Tosoh Corporation “TSK-GEL G4000HXL”
Detector: RI (differential refractometer)
Data processing: “GPC-8020 Model II version 4.10” manufactured by Tosoh Corporation
Measurement conditions: Column temperature 40 ° C
Developing solvent Tetrahydrofuran
Flow rate: 1.0 ml / min Standard: The following monodisperse polystyrene having a known molecular weight was used in accordance with the measurement manual of “GPC-8020 Model II version 4.10”.
(Polystyrene used)
“A-500” manufactured by Tosoh Corporation
"A-1000" manufactured by Tosoh Corporation
"A-2500" manufactured by Tosoh Corporation
"A-5000" manufactured by Tosoh Corporation
“F-1” manufactured by Tosoh Corporation
"F-2" manufactured by Tosoh Corporation
“F-4” manufactured by Tosoh Corporation
“F-10” manufactured by Tosoh Corporation
“F-20” manufactured by Tosoh Corporation
“F-40” manufactured by Tosoh Corporation
“F-80” manufactured by Tosoh Corporation
“F-128” manufactured by Tosoh Corporation
Sample: A 1.0 mass% tetrahydrofuran solution filtered in terms of resin solids and filtered through a microfilter (50 μl).
前記２量体（ｘ２）を表す前記構造式（１）において、Ｒ１及びＲ２は、それぞれ独立して水素原子、炭素原子数１〜４のアルキル基、炭素原子数１〜４のアルコキシ基である。このような２量体（ｘ２）は、具体的には、下記構造式（１−１）〜（１−６） In the structural formula (1) representing the dimer (x2), R 1 and R 2 are each independently a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms. It is. Specifically, such a dimer (x2) has the following structural formulas (1-1) to (1-6).
本発明の３官能化合物（ｘ３）を表す前記構造式（２）において、Ｒ１及びＲ２は、それぞれ独立して水素原子、炭素原子数１〜４のアルキル基、炭素原子数１〜４のアルコキシ基である。このような官能化合物（ｘ３）は、具体的には、下記構造式（２−１）〜（２−６） In the structural formula (2) representing the trifunctional compound (x3) of the present invention, R 1 and R 2 are each independently a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, or an alkyl group having 1 to 4 carbon atoms. An alkoxy group; Specifically, such a functional compound (x3) has the following structural formulas (2-1) to (2-6).
本発明の４官能化合物（ｘ４）を表す前記構造式（３）において、Ｒ１及びＲ２は、それぞれ独立して水素原子、炭素原子数１〜４のアルキル基、炭素原子数１〜４のアルコキシ基である。このような４官能化合物（ｘ４）は、具体的には、下記構造式（３−１）〜（３−６） In the structural formula (3) representing the tetrafunctional compound (x4) of the present invention, R 1 and R 2 are each independently a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, or an alkyl group having 1 to 4 carbon atoms. An alkoxy group; Specifically, such a tetrafunctional compound (x4) has the following structural formulas (3-1) to (3-6).
本発明のクレゾール−ナフトール樹脂は、前記２量体（ｘ２）、前記３官能化合物（ｘ３）及び前記４官能化合物（ｘ４）の他、下記構造式（４） In addition to the dimer (x2), the trifunctional compound (x3), and the tetrafunctional compound (x4), the cresol-naphthol resin of the present invention includes the following structural formula (4).
で表されるその他の多官能化合物を含有していても良い。
Other polyfunctional compounds represented by
本発明のクレゾール−ナフトール樹脂が前記構造式（４）においてｎが３以上であるその他の多官能化合物を含有する場合、硬化物における膨張率及び熱履歴後の耐熱性変化をより低減できるという本願発明の硬化が十分に発揮されることから、前記２量体（ｘ２）、前記３官能化合物（ｘ３）及び前記４官能化合物（ｘ４）の合計の含有率がＧＰＣ測定における面積比率で７０％以上であり、かつ、前記２量体（ｘ２）、前記３官能化合物（ｘ３）、前記４官能化合物（ｘ４）及び前記多官能化合物（Ｘ）においてｎが３〜５の何れかである化合物の合計の含有率が９０％以上であることが好ましい。 When the cresol-naphthol resin of the present invention contains other polyfunctional compound in which n is 3 or more in the structural formula (4), the present application can further reduce the expansion coefficient and the heat resistance change after heat history in the cured product Since the curing of the invention is sufficiently exhibited, the total content of the dimer (x2), the trifunctional compound (x3), and the tetrafunctional compound (x4) is 70% or more in terms of area ratio in GPC measurement. And the sum of the compounds in which n is any one of 3 to 5 in the dimer (x2), the trifunctional compound (x3), the tetrafunctional compound (x4), and the polyfunctional compound (X) The content of is preferably 90% or more.
以上詳述した本発明のクレゾール−ナフトール樹脂は、その水酸基当量が１３０〜１５０ｇ／ｅｑの範囲であることが、硬化物の低熱膨張性が良好となる点から好ましく、特に１３５〜１４５ｇ／ｅｑの範囲であることが好ましい。 The cresol-naphthol resin of the present invention described above in detail preferably has a hydroxyl group equivalent in the range of 130 to 150 g / eq from the viewpoint of good low thermal expansion of the cured product, particularly 135 to 145 g / eq. A range is preferable.
本発明のクレゾール−ナフトール樹脂は、その分子量分布（Ｍｗ／Ｍｎ）の値が、１．００〜１．３０の範囲であることが、熱履歴後の耐熱性変化も小さい硬化物が得られることから好ましい。尚、本発明において分子量分布（Ｍｗ／Ｍｎ）とは、前記各成分の含有率を求める際のＧＰＣ測定条件と同様の条件で測定した重量平均分子量（Ｍｗ）の値と数平均分子量（Ｍｎ）とから算出される値である。 The cresol-naphthol resin of the present invention has a molecular weight distribution (Mw / Mn) in the range of 1.00 to 1.30, and a cured product having a small change in heat resistance after heat history can be obtained. To preferred. In the present invention, the molecular weight distribution (Mw / Mn) is a weight average molecular weight (Mw) value and a number average molecular weight (Mn) measured under the same conditions as the GPC measurement conditions for determining the content of each component. It is a value calculated from
以上詳述した本発明のクレゾール−ナフトール樹脂は、例えば、下記方法１又は方法２によって製造することができる。
方法１：有機溶剤及びアルカリ触媒の存在下、β−ナフトール化合物とホルムアルデヒドとを反応させ、次いで、ホルムアルデヒドの存在下、オルソクレゾールを加え反応させて、目的とするクレゾール−ナフトール樹脂を得る方法。
方法２：有機溶剤及びアルカリ触媒の存在下、オルソクレゾール、β−ナフトール化合物、及びホルムアルデヒドを反応させて、目的とするクレゾール−ナフトール樹脂を得る方法。
The cresol-naphthol resin of the present invention described in detail above can be produced, for example, by the following
Method 1: A method in which a β-naphthol compound and formaldehyde are reacted in the presence of an organic solvent and an alkali catalyst, and then orthocresol is added and reacted in the presence of formaldehyde to obtain a target cresol-naphthol resin.
Method 2: A method in which ortho-cresol, β-naphthol compound, and formaldehyde are reacted in the presence of an organic solvent and an alkali catalyst to obtain a desired cresol-naphthol resin.
本発明では、上記方法１又は２において、反応触媒として、アルカリ触媒を用いること、及び、有機溶剤を原料成分に対して少なく使用することにより、前記２量体（ｘ２）、前記３官能化合物（ｘ３）及び前記４官能化合物（ｘ４）のクレゾール−ナフトール樹脂中の存在割合を所定範囲に調整することができる。
In the present invention, in the
ここで用いるアルカリ触媒としては、例えば、水酸化ナトリウム、水酸化カリウム等のアルカリ金属水酸化物、金属ナトリウム、金属リチウム、水素化ナトリウム、炭酸ナトリウム、炭酸カリウム等の無機アルカリ類などが挙げられる。その使用量は、原料成分であるオルソクレゾール及びβ−ナフトール化合物のフェノール性水酸基の総数に対して、モル基準で０．０１〜２．０倍量となる範囲であることが好ましい。 Examples of the alkali catalyst used herein include alkali metal hydroxides such as sodium hydroxide and potassium hydroxide, inorganic alkalis such as metal sodium, metal lithium, sodium hydride, sodium carbonate, and potassium carbonate. The amount used is preferably in the range of 0.01 to 2.0 times the molar amount of the total number of phenolic hydroxyl groups of the orthocresol and β-naphthol compounds that are raw material components.
また、有機溶剤としては、メチルセロソルブ、イソプロピルアルコール、エチルセロソルブ、トルエン、キシレン、メチルイソブチルケトンなどが挙げられる。これらのなかでもとりわけ比較的重縮合体が高分子量化する点からイソプロピルアルコールが好ましい。本発明における有機溶剤の使用量は、原料成分であるオルソクレゾール及びβ−ナフトール化合物の総質量１００質量部あたり、５〜７０質量部の範囲であることが、前記２量体（ｘ２）、前記３官能化合物（ｘ３）及び前記４官能化合物（ｘ４）のクレゾール−ナフトール樹脂中の存在割合を所定範囲に調整し易い点から好ましい。 Examples of the organic solvent include methyl cellosolve, isopropyl alcohol, ethyl cellosolve, toluene, xylene, and methyl isobutyl ketone. Of these, isopropyl alcohol is particularly preferred from the viewpoint of relatively high molecular weight of the polycondensate. The amount of the organic solvent used in the present invention is in the range of 5 to 70 parts by mass per 100 parts by mass of the total mass of the orthocresol and β-naphthol compounds that are the raw material components. The trifunctional compound (x3) and the tetrafunctional compound (x4) are preferable from the viewpoint that the abundance ratio in the cresol-naphthol resin can be easily adjusted within a predetermined range.
本発明では必須の原料成分としてオルソクレゾールを用いる。クレゾールの中でも、オルト体のものを用いることにより、前記４官化合物（ｘ４）及び前記３官能化合物（ｘ３）を効率的に得ることが出来、得られるクレゾール−ナフトール樹脂の硬化物の低熱膨張性が良好となる。 In the present invention, orthocresol is used as an essential raw material component. Among the cresols, by using the ortho-type one, the four-component compound (x4) and the trifunctional compound (x3) can be efficiently obtained, and the low thermal expansion property of the cured product of the obtained cresol-naphthol resin. Becomes better.
本発明のもう一つの必須成分であるβ−ナフトール化合物は、β−ナフトール及びこれらにメチル基、エチル基、プロピル基、ｔ−ブチル基等のアルキル基、メトキシ基、エトキシ基等のアルコキシ基が核置換した化合物等が挙げられる。これらのなかでも置換基を有しないβ−ナフトールが、最終的に得られるクレゾール−ナフトール樹脂の硬化物における熱履歴後の耐熱性変化が少なくなる点から好ましい。 The β-naphthol compound which is another essential component of the present invention has β-naphthol and an alkyl group such as methyl group, ethyl group, propyl group and t-butyl group, alkoxy group such as methoxy group and ethoxy group. Examples include compounds substituted by nuclei. Among these, β-naphthol having no substituent is preferable from the viewpoint that the heat resistance change after heat history in the cured cresol-naphthol resin finally obtained is reduced.
一方、ここで用いるホルムアルデヒドは、水溶液の状態であるホルマリン溶液でも、固形状態であるパラホルムアルデヒドでもよい。 On the other hand, the formaldehyde used here may be a formalin solution in an aqueous solution state or paraformaldehyde in a solid state.
前記方法１又は方法２におけるオルソクレゾールと、β−ナフトール化合物との使用割合は、モル比（オルソクレゾール／β−ナフトール化合物）が［１／０．５］〜［１／４］となる範囲であることが最終的に得られるクレゾール−ナフトール樹脂中の各成分比率の調整が容易であることが好ましい。
The ratio of orthocresol and β-naphthol compound used in
ホルムアルデヒドの反応仕込み比率は、オルソクレゾール及びβ−ナフトール化合物の総モル数に対して、ホルムアルデヒドが、モル基準で０．６〜２．０倍量となる割合であること、特に、低熱膨張性に優れる点から、０．６〜１．５倍量となる割合であることが好ましい。 The reaction charge ratio of formaldehyde is such that the formaldehyde is in a ratio of 0.6 to 2.0 times on a molar basis with respect to the total number of moles of ortho-cresol and β-naphthol compound. From the standpoint of superiority, the ratio is preferably 0.6 to 1.5 times the amount.
前記方法１では、反応容器に、所定量のβ−ナフトール化合物、ホルムアルデヒド、有機溶剤、及びアルカリ触媒と仕込み、４０〜１００℃にて反応させ、反応終了後、オルソクレゾール（必要に応じて、更にホルムアルデヒド）を加え、４０〜１００℃の温度条件下に反応させて目的とする重縮合体を得ることができる。
In
反応終了後は、反応終了後、反応混合物のｐＨ値が４〜７になるまで中和あるいは水洗処理を行う。中和処理や水洗処理は常法にしたがって行えばよく、例えば酢酸、燐酸、燐酸ナトリウム等の酸性物質を中和剤として用いることができる。中和あるいは水洗処理を行った後、減圧加熱下で有機溶剤を留去し目的とする重縮合体を得ることができる。 After completion of the reaction, the reaction mixture is neutralized or washed with water until the pH value of the reaction mixture becomes 4 to 7. The neutralization treatment and the water washing treatment may be performed according to conventional methods. For example, acidic substances such as acetic acid, phosphoric acid, and sodium phosphate can be used as the neutralizing agent. After neutralization or water washing treatment, the organic solvent is distilled off under reduced pressure heating to obtain the desired polycondensate.
前記方法２では、反応容器に、所定量のβ−ナフトール化合物、オルソクレゾール、ホルムアルデヒド、有機溶剤、及びアルカリ触媒を仕込み、４０〜１００℃にて反応させて目的とする重縮合体を得ることができる。 In the method 2, a predetermined amount of β-naphthol compound, orthocresol, formaldehyde, an organic solvent, and an alkali catalyst are charged in a reaction vessel and reacted at 40 to 100 ° C. to obtain a target polycondensate. it can.
反応終了後は、反応混合物のｐＨ値が４〜７になるまで中和あるいは水洗処理を行う。中和処理や水洗処理は常法にしたがって行えばよく、例えば酢酸、燐酸、燐酸ナトリウム等の酸性物質を中和剤として用いることができる。中和あるいは水洗処理を行った後、減圧加熱下で有機溶剤を留去し目的とする重縮合体を得ることができる。 After completion of the reaction, the reaction mixture is neutralized or washed with water until the pH value of the reaction mixture becomes 4-7. The neutralization treatment and the water washing treatment may be performed according to conventional methods. For example, acidic substances such as acetic acid, phosphoric acid, and sodium phosphate can be used as the neutralizing agent. After neutralization or water washing treatment, the organic solvent is distilled off under reduced pressure heating to obtain the desired polycondensate.
次に、本発明の硬化性樹脂組成物は、以上詳述したクレゾール−ナフトール樹脂とエポキシ樹脂とを必須成分とするものである。 Next, the curable resin composition of the present invention comprises the cresol-naphthol resin and the epoxy resin described in detail above as essential components.
ここで用いるエポキシ樹脂は、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Ｆ型エポキシ樹脂等のビスフェノール型エポキシ樹脂；ビフェニル型エポキシ樹脂、テトラメチルビフェニル型エポキシ樹脂等のビフェニル型エポキシ樹脂；フェノールノボラック型エポキシ樹脂、クレゾ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、フェノール化合物とフェノール性水酸基を有する芳香族アルデヒドとの縮合物のエポキシ化物、ビフェニルノボラック型エポキシ樹脂等のノボラック型エポキシ樹脂；トリフェニルメタン型エポキシ樹脂；テトラフェニルエタン型エポキシ樹脂；ジシクロペンタジエン−フェノール付加反応型エポキシ樹脂；フェノールアラルキル型エポキシ樹脂；ナフトールノボラック型エポキシ樹脂、ナフトールアラルキル型エポキシ樹脂、ナフトール−フェノール共縮ノボラック型エポキシ樹脂、ナフトール−クレゾール共縮ノボラック型エポキシ樹脂、ジグリシジルオキシナフタレン等の分子構造中にナフタレン骨格を有するエポキシ樹脂；リン原子含有エポキシ樹脂等が挙げられる。 Examples of the epoxy resin used here include bisphenol type epoxy resins such as bisphenol A type epoxy resins and bisphenol F type epoxy resins; biphenyl type epoxy resins such as biphenyl type epoxy resins and tetramethylbiphenyl type epoxy resins; and phenol novolac type epoxy resins. , Cresol novolac type epoxy resin, bisphenol A novolac type epoxy resin, epoxidized product of condensation product of phenol compound and aromatic aldehyde having phenolic hydroxyl group, novolac type epoxy resin such as biphenyl novolac type epoxy resin; triphenylmethane type epoxy Resin; Tetraphenylethane type epoxy resin; Dicyclopentadiene-phenol addition reaction type epoxy resin; Phenol aralkyl type epoxy resin; Naphthol novola Type epoxy resin, naphthol aralkyl type epoxy resin, naphthol-phenol co-condensed novolac type epoxy resin, naphthol-cresol co-condensed novolac type epoxy resin, epoxy resin having a naphthalene skeleton in the molecular structure; phosphorus atom; Containing epoxy resin.
これらのなかでも、フェノールアラルキル型エポキシ樹脂、ビフェニルノボラック型エポキシ樹脂や、ナフタレン骨格を含有するナフトールノボラック型エポキシ樹脂、ナフトールアラルキル型エポキシ樹脂、ナフトール−フェノール共縮ノボラック型エポキシ樹脂、ナフトール−クレゾール共縮ノボラック型エポキシ樹脂や、結晶性のビフェニル型エポキシ樹脂、テトラメチルビフェニル型エポキシ樹脂、キサンテン型エポキシ樹脂や、アルコキシ基含有芳香環変性ノボラック型エポキシ樹脂（ホルムアルデヒドでグリシジル基含有芳香環及びアルコキシ基含有芳香環が連結された化合物）等が耐熱性に優れる硬化物が得られる点から特に好ましい。 Among these, phenol aralkyl type epoxy resin, biphenyl novolac type epoxy resin, naphthol novolak type epoxy resin containing naphthalene skeleton, naphthol aralkyl type epoxy resin, naphthol-phenol co-condensed novolac type epoxy resin, naphthol-cresol co-condensation Novolac-type epoxy resin, crystalline biphenyl-type epoxy resin, tetramethylbiphenyl-type epoxy resin, xanthene-type epoxy resin, alkoxy group-containing aromatic ring-modified novolak-type epoxy resin (formaldehyde glycidyl group-containing aromatic ring and alkoxy group-containing aromatic A compound in which rings are linked is particularly preferred from the viewpoint of obtaining a cured product having excellent heat resistance.
本発明の硬化性樹脂組成物におけるクレゾール−ナフトール樹脂とエポキシ樹脂の配合量としては、特に制限されるものではないが、得られる硬化物特性が良好である点から、エポキシ樹脂のエポキシ基の合計１当量に対して、クレゾール−ナフトール樹脂中のフェノール性水酸基が０．７〜１．５当量になる量が好ましい。 The blending amount of the cresol-naphthol resin and the epoxy resin in the curable resin composition of the present invention is not particularly limited, but the total of the epoxy groups of the epoxy resin from the point that the obtained cured product characteristics are good. The amount that the phenolic hydroxyl group in the cresol-naphthol resin is 0.7 to 1.5 equivalents relative to 1 equivalent is preferable.
また必要に応じて本発明の硬化性樹脂組成物に硬化促進剤を適宜併用することもできる。前記硬化促進剤としては種々のものが使用できるが、例えば、リン系化合物、第３級アミン、イミダゾール、有機酸金属塩、ルイス酸、アミン錯塩等が挙げられる。特に半導体封止材料用途として使用する場合には、硬化性、耐熱性、電気特性、耐湿信頼性等に優れる点から、リン系化合物ではトリフェニルフォスフィン、第３級アミンでは１，８−ジアザビシクロ−［５．４．０］−ウンデセン（ＤＢＵ）が好ましい。 Moreover, a hardening accelerator can also be suitably used together with the curable resin composition of this invention as needed. Various curing accelerators can be used, and examples thereof include phosphorus compounds, tertiary amines, imidazoles, organic acid metal salts, Lewis acids, and amine complex salts. In particular, when used as a semiconductor encapsulating material, it is excellent in curability, heat resistance, electrical characteristics, moisture resistance reliability, etc., so that triphenylphosphine is used for phosphorus compounds and 1,8-diazabicyclo is used for tertiary amines. -[5.4.0] -undecene (DBU) is preferred.
本発明の硬化性樹脂組成物において、エポキシ樹脂の硬化剤成分として、前記した本発明のクレゾール−ナフトール樹脂を単独で用いてもよいが、本発明の効果を損なわない範囲で他のエポキシ樹脂用硬化剤を使用してもよい。具体的には、硬化剤成分の全質量に対して前記した本発明のクレゾール−ナフトール樹脂が３０質量％以上、好ましくは４０質量％以上となる範囲で他の硬化剤を併用することができる。 In the curable resin composition of the present invention, the above-described cresol-naphthol resin of the present invention may be used alone as the curing agent component of the epoxy resin, but for other epoxy resins as long as the effects of the present invention are not impaired. A curing agent may be used. Specifically, other curing agents can be used in combination so that the cresol-naphthol resin of the present invention is 30% by mass or more, preferably 40% by mass or more with respect to the total mass of the curing agent component.
ここで前記クレゾール−ナフトール樹脂と併用され得る他の硬化剤としては、種々のエポキシ樹脂用硬化剤を用いることができるが、例えば、アミン系化合物、アミド系化合物、酸無水物系化合物、フェノ−ル系化合物などが挙げられる。具体的には、アミン系化合物としてはジアミノジフェニルメタン、ジエチレントリアミン、トリエチレンテトラミン、ジアミノジフェニルスルホン、イソホロンジアミン、イミダゾ−ル、ＢＦ３−アミン錯体、グアニジン誘導体等が挙げられ、アミド系化合物としては、ジシアンジアミド、リノレン酸の２量体とエチレンジアミンとより合成されるポリアミド樹脂等が挙げられ、酸無水物系化合物としては、無水フタル酸、無水トリメリット酸、無水ピロメリット酸、無水マレイン酸、テトラヒドロ無水フタル酸、メチルテトラヒドロ無水フタル酸、無水メチルナジック酸、ヘキサヒドロ無水フタル酸、メチルヘキサヒドロ無水フタル酸等が挙げられ、フェノール系化合物としては、フェノールノボラック樹脂、クレゾールノボラック樹脂、芳香族炭化水素ホルムアルデヒド樹脂変性フェノール樹脂、ジシクロペンタジエンフェノール付加型樹脂、フェノールアラルキル樹脂（ザイロック樹脂）、レゾルシンノボラック樹脂に代表される多価ヒドロキシ化合物とホルムアルデヒドから合成される多価フェノールノボラック樹脂、ナフトールアラルキル樹脂、トリメチロールメタン樹脂、テトラフェニロールエタン樹脂、ナフトールノボラック樹脂、ナフトール−フェノール共縮ノボラック樹脂、ナフトール−クレゾール共縮ノボラック樹脂、ビフェニル変性フェノール樹脂（ビスメチレン基でフェノール核が連結された多価フェノール化合物）、ビフェニル変性ナフトール樹脂（ビスメチレン基でフェノール核が連結された多価ナフトール化合物）、アミノトリアジン変性フェノール樹脂（メラミン、ベンゾグアナミンなどでフェノール核が連結された多価フェノール化合物）やアルコキシ基含有芳香環変性ノボラック樹脂（ホルムアルデヒドでフェノール核及びアルコキシ基含有芳香環が連結された多価フェノール化合物）等の多価フェノール化合物、ポリフェニレンエーテル樹脂、前記各種フェノール系化合物のシアネートエステル、前記各種フェノール系化合物の活性エステル等が挙げられる。 Here, as other curing agents that can be used in combination with the cresol-naphthol resin, various curing agents for epoxy resins can be used. For example, amine compounds, amide compounds, acid anhydride compounds, phenol- And the like. Specifically, examples of the amine compound include diaminodiphenylmethane, diethylenetriamine, triethylenetetramine, diaminodiphenylsulfone, isophoronediamine, imidazole, BF 3 -amine complex, and guanidine derivative. Examples of the amide compound include dicyandiamide. And polyamide resins synthesized from dimer of linolenic acid and ethylenediamine. Examples of acid anhydride compounds include phthalic anhydride, trimellitic anhydride, pyromellitic anhydride, maleic anhydride, and tetrahydrophthalic anhydride. Acid, methyltetrahydrophthalic anhydride, methyl nadic anhydride, hexahydrophthalic anhydride, methylhexahydrophthalic anhydride, etc., and phenolic compounds include phenol novolac resin, cresol novolac resin Aromatic hydrocarbon formaldehyde resin modified phenolic resin, dicyclopentadiene phenol addition type resin, phenol aralkyl resin (Zylok resin), polyhydric phenol novolak resin synthesized from formaldehyde and polyhydroxy compound represented by resorcin novolac resin, naphthol Aralkyl resin, trimethylol methane resin, tetraphenylol ethane resin, naphthol novolac resin, naphthol-phenol co-condensed novolac resin, naphthol-cresol co-condensed novolac resin, biphenyl-modified phenol resin (polyvalent polyphenol with bismethylene group linked to phenol nucleus) Phenolic compounds), biphenyl-modified naphthol resins (polyvalent naphthol compounds in which phenol nuclei are linked by bismethylene groups), aminotriazine-modified phenols Resin (polyhydric phenol compound in which phenol nucleus is linked with melamine, benzoguanamine, etc.) or alkoxy group-containing aromatic ring modified novolak resin (polyhydric phenol compound in which phenol nucleus and alkoxy group-containing aromatic ring are linked with formaldehyde) Examples thereof include polyhydric phenol compounds, polyphenylene ether resins, cyanate esters of the various phenol compounds, and active esters of the various phenol compounds.
これらの中でも、特に芳香族骨格を分子構造内に多く含むものが低熱膨張性の点から好ましく、具体的には、フェノールノボラック樹脂、クレゾールノボラック樹脂、芳香族炭化水素ホルムアルデヒド樹脂変性フェノール樹脂、フェノールアラルキル樹脂、レゾルシンノボラック樹脂、ナフトールアラルキル樹脂、ナフトールノボラック樹脂、ナフトール−フェノール共縮ノボラック樹脂、ナフトール−クレゾール共縮ノボラック樹脂、ビフェニル変性フェノール樹脂、ビフェニル変性ナフトール樹脂、アミノトリアジン変性フェノール樹脂、アルコキシ基含有芳香環変性ノボラック樹脂（ホルムアルデヒドでフェノール核及びアルコキシ基含有芳香環が連結された多価フェノール化合物）が低熱膨張性に優れることから好ましい。 Among these, those containing a large amount of an aromatic skeleton in the molecular structure are preferred from the viewpoint of low thermal expansion, and specifically, phenol novolac resins, cresol novolac resins, aromatic hydrocarbon formaldehyde resin-modified phenol resins, phenol aralkyls. Resin, resorcinol novolak resin, naphthol aralkyl resin, naphthol novolak resin, naphthol-phenol co-condensed novolak resin, naphthol-cresol co-condensed novolak resin, biphenyl-modified phenol resin, biphenyl-modified naphthol resin, aminotriazine-modified phenol resin, alkoxy group-containing aromatic A ring-modified novolak resin (a polyhydric phenol compound in which a phenol nucleus and an alkoxy group-containing aromatic ring are linked with formaldehyde) is preferable because of its low thermal expansion.
以上詳述した本発明の硬化性樹脂組成物は優れた溶剤溶解性を発現することを特徴としており、上記各成分の他に有機溶剤を配合することができる。ここで使用し得る前記有機溶剤としては、メチルエチルケトン、アセトン、ジメチルホルムアミド、メチルイソブチルケトン、メトキシプロパノール、シクロヘキサノン、メチルセロソルブ、エチルジグリコールアセテート、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が挙げられ、その選択や適正な使用量は用途によって適宜選択し得るが、例えば、プリント配線板用途では、メチルエチルケトン、アセトン、ジメチルホルムアミド等の沸点が１６０℃以下の極性溶剤であることが好ましく、また、不揮発分４０〜８０質量％となる割合で使用することが好ましい。一方、ビルドアップ用接着フィルム用途では、有機溶剤として、例えば、アセトン、メチルエチルケトン、シクロヘキサノン等のケトン類、酢酸エチル、酢酸ブチル、セロソルブアセテート、プロピレングリコールモノメチルエーテルアセテート、カルビトールアセテート等の酢酸エステル類、セロソルブ、ブチルカルビトール等のカルビトール類、トルエン、キシレン等の芳香族炭化水素類、ジメチルホルムアミド、ジメチルアセトアミド、Ｎ−メチルピロリドン等を用いることが好ましく、また、不揮発分３０〜６０質量％となる割合で使用することが好ましい。 The curable resin composition of the present invention described in detail above is characterized by exhibiting excellent solvent solubility, and an organic solvent can be blended in addition to the above components. Examples of the organic solvent that can be used here include methyl ethyl ketone, acetone, dimethylformamide, methyl isobutyl ketone, methoxypropanol, cyclohexanone, methyl cellosolve, ethyl diglycol acetate, propylene glycol monomethyl ether acetate, etc. The amount used can be appropriately selected depending on the application. For example, in printed wiring board applications, it is preferable to use a polar solvent having a boiling point of 160 ° C. or lower, such as methyl ethyl ketone, acetone, dimethylformamide, and the non-volatile content of 40 to 80% by mass. It is preferable to use in the ratio which becomes. On the other hand, in build-up adhesive film applications, as organic solvents, for example, ketones such as acetone, methyl ethyl ketone, cyclohexanone, acetates such as ethyl acetate, butyl acetate, cellosolve acetate, propylene glycol monomethyl ether acetate, carbitol acetate, It is preferable to use carbitols such as cellosolve and butyl carbitol, aromatic hydrocarbons such as toluene and xylene, dimethylformamide, dimethylacetamide, N-methylpyrrolidone and the like, and the nonvolatile content is 30 to 60% by mass. It is preferable to use in proportions.
また、上記硬化性樹脂組成物は、難燃性を発揮させるために、例えばプリント配線板の分野においては、信頼性を低下させない範囲で、実質的にハロゲン原子を含有しない非ハロゲン系難燃剤を配合してもよい。 The curable resin composition is a non-halogen flame retardant that substantially does not contain a halogen atom, for example, in the field of printed wiring boards, in order to exhibit flame retardancy, as long as reliability is not lowered. You may mix | blend.
前記非ハロゲン系難燃剤としては、例えば、リン系難燃剤、窒素系難燃剤、シリコーン系難燃剤、無機系難燃剤、有機金属塩系難燃剤等が挙げられ、それらの使用に際しても何等制限されるものではなく、単独で使用しても、同一系の難燃剤を複数用いても良く、また、異なる系の難燃剤を組み合わせて用いることも可能である。 Examples of the non-halogen flame retardants include phosphorus flame retardants, nitrogen flame retardants, silicone flame retardants, inorganic flame retardants, and organic metal salt flame retardants. The flame retardants may be used alone or in combination, and a plurality of flame retardants of the same system may be used, or different types of flame retardants may be used in combination.
前記リン系難燃剤としては、無機系、有機系のいずれも使用することができる。無機系化合物としては、例えば、赤リン、リン酸一アンモニウム、リン酸二アンモニウム、リン酸三アンモニウム、ポリリン酸アンモニウム等のリン酸アンモニウム類、リン酸アミド等の無機系含窒素リン化合物が挙げられる。 As the phosphorus flame retardant, either inorganic or organic can be used. Examples of the inorganic compounds include red phosphorus, monoammonium phosphate, diammonium phosphate, triammonium phosphate, ammonium phosphates such as ammonium polyphosphate, and inorganic nitrogen-containing phosphorus compounds such as phosphate amide. .
また、前記赤リンは、加水分解等の防止を目的として表面処理が施されていることが好ましく、表面処理方法としては、例えば、（ｉ）水酸化マグネシウム、水酸化アルミニウム、水酸化亜鉛、水酸化チタン、酸化ビスマス、水酸化ビスマス、硝酸ビスマス又はこれらの混合物等の無機化合物で被覆処理する方法、（ｉｉ）水酸化マグネシウム、水酸化アルミニウム、水酸化亜鉛、水酸化チタン等の無機化合物、及びフェノール樹脂等の熱硬化性樹脂の混合物で被覆処理する方法、（ｉｉｉ）水酸化マグネシウム、水酸化アルミニウム、水酸化亜鉛、水酸化チタン等の無機化合物の被膜の上にフェノール樹脂等の熱硬化性樹脂で二重に被覆処理する方法等が挙げられる。 The red phosphorus is preferably subjected to a surface treatment for the purpose of preventing hydrolysis and the like. Examples of the surface treatment method include (i) magnesium hydroxide, aluminum hydroxide, zinc hydroxide, water A method of coating with an inorganic compound such as titanium oxide, bismuth oxide, bismuth hydroxide, bismuth nitrate or a mixture thereof; (ii) an inorganic compound such as magnesium hydroxide, aluminum hydroxide, zinc hydroxide, titanium hydroxide; and A method of coating with a mixture of a thermosetting resin such as a phenol resin, (iii) thermosetting of a phenol resin or the like on a coating of an inorganic compound such as magnesium hydroxide, aluminum hydroxide, zinc hydroxide, or titanium hydroxide For example, a method of double coating with a resin may be used.
前記有機リン系化合物としては、例えば、リン酸エステル化合物、ホスホン酸化合物、ホスフィン酸化合物、ホスフィンオキシド化合物、ホスホラン化合物、有機系含窒素リン化合物等の汎用有機リン系化合物の他、９，１０−ジヒドロ−９−オキサ−１０−ホスファフェナントレン＝１０−オキシド、１０−（２，５―ジヒドロオキシフェニル）―１０Ｈ−９−オキサ−１０−ホスファフェナントレン＝１０−オキシド、１０―（２，７−ジヒドロオキシナフチル）−１０Ｈ−９−オキサ−１０−ホスファフェナントレン＝１０−オキシド等の環状有機リン化合物、及びそれをエポキシ樹脂やフェノール樹脂等の化合物と反応させた誘導体等が挙げられる。 Examples of the organic phosphorus compound include, for example, general-purpose organic phosphorus compounds such as phosphate ester compounds, phosphonic acid compounds, phosphinic acid compounds, phosphine oxide compounds, phosphorane compounds, organic nitrogen-containing phosphorus compounds, and 9,10- Dihydro-9-oxa-10-phosphaphenanthrene = 10-oxide, 10- (2,5-dihydrooxyphenyl) -10H-9-oxa-10-phosphaphenanthrene = 10-oxide, 10- (2,7 -Dihydrooxynaphthyl) -10H-9-oxa-10-phosphaphenanthrene = 10-oxide and other cyclic organic phosphorus compounds, and derivatives obtained by reacting them with compounds such as epoxy resins and phenol resins.
それらの配合量としては、リン系難燃剤の種類、硬化性樹脂組成物の他の成分、所望の難燃性の程度によって適宜選択されるものであるが、例えば、エポキシ樹脂、硬化剤、非ハロゲン系難燃剤及びその他の充填材や添加剤等全てを配合した硬化性樹脂組成物１００質量部中、赤リンを非ハロゲン系難燃剤として使用する場合は０．１〜２．０質量部の範囲で配合することが好ましく、有機リン化合物を使用する場合は同様に０．１〜１０．０質量部の範囲で配合することが好ましく、特に０．５〜６．０質量部の範囲で配合することが好ましい。 The blending amount thereof is appropriately selected depending on the type of the phosphorus-based flame retardant, the other components of the curable resin composition, and the desired degree of flame retardancy. In 100 parts by mass of curable resin composition containing all of halogen-based flame retardant and other fillers and additives, 0.1 to 2.0 parts by mass of red phosphorus is used as a non-halogen flame retardant. It is preferable to mix in the range, and when using an organophosphorus compound, it is preferably mixed in the range of 0.1 to 10.0 parts by mass, particularly in the range of 0.5 to 6.0 parts by mass. It is preferable to do.
また前記リン系難燃剤を使用する場合、該リン系難燃剤にハイドロタルサイト、水酸化マグネシウム、ホウ化合物、酸化ジルコニウム、黒色染料、炭酸カルシウム、ゼオライト、モリブデン酸亜鉛、活性炭等を併用してもよい。 In addition, when using the phosphorous flame retardant, the phosphorous flame retardant may be used in combination with hydrotalcite, magnesium hydroxide, boric compound, zirconium oxide, black dye, calcium carbonate, zeolite, zinc molybdate, activated carbon, etc. Good.
前記窒素系難燃剤としては、例えば、トリアジン化合物、シアヌル酸化合物、イソシアヌル酸化合物、フェノチアジン等が挙げられ、トリアジン化合物、シアヌル酸化合物、イソシアヌル酸化合物が好ましい。 Examples of the nitrogen-based flame retardant include triazine compounds, cyanuric acid compounds, isocyanuric acid compounds, phenothiazines, and the like, and triazine compounds, cyanuric acid compounds, and isocyanuric acid compounds are preferable.
前記トリアジン化合物としては、例えば、メラミン、アセトグアナミン、ベンゾグアナミン、メロン、メラム、サクシノグアナミン、エチレンジメラミン、ポリリン酸メラミン、トリグアナミン等の他、例えば、（ｉ）硫酸グアニルメラミン、硫酸メレム、硫酸メラムなどの硫酸アミノトリアジン化合物、（ｉｉ）フェノール、クレゾール、キシレノール、ブチルフェノール、ノニルフェノール等のフェノール類と、メラミン、ベンゾグアナミン、アセトグアナミン、ホルムグアナミン等のメラミン類およびホルムアルデヒドとの共縮合物、（ｉｉｉ）前記（ｉｉ）の共縮合物とフェノールホルムアルデヒド縮合物等のフェノール樹脂類との混合物、（ｉｖ）前記（ｉｉ）、（ｉｉｉ）を更に桐油、異性化アマニ油等で変性したもの等が挙げられる。 Examples of the triazine compound include melamine, acetoguanamine, benzoguanamine, melon, melam, succinoguanamine, ethylene dimelamine, melamine polyphosphate, triguanamine, and the like, for example, (i) guanylmelamine sulfate, melem sulfate, sulfate (Iii) co-condensates of phenols such as phenol, cresol, xylenol, butylphenol and nonylphenol with melamines such as melamine, benzoguanamine, acetoguanamine and formguanamine and formaldehyde, (iii) (Ii) a mixture of a co-condensate of (ii) and a phenolic resin such as a phenol formaldehyde condensate, (iv) those obtained by further modifying (ii) and (iii) with paulownia oil, isomerized linseed oil, etc. It is.
前記シアヌル酸化合物の具体例としては、例えば、シアヌル酸、シアヌル酸メラミン等を挙げることができる。 Specific examples of the cyanuric acid compound include cyanuric acid and cyanuric acid melamine.
前記窒素系難燃剤の配合量としては、窒素系難燃剤の種類、硬化性樹脂組成物の他の成分、所望の難燃性の程度によって適宜選択されるものであるが、例えば、エポキシ樹脂、硬化剤、非ハロゲン系難燃剤及びその他の充填材や添加剤等全てを配合した硬化性樹脂組成物１００質量部中、０．０５〜１０質量部の範囲で配合することが好ましく、特に０．１〜５質量部の範囲で配合することが好ましい。 The compounding amount of the nitrogen-based flame retardant is appropriately selected according to the type of the nitrogen-based flame retardant, the other components of the curable resin composition, and the desired degree of flame retardancy. For example, an epoxy resin, It is preferable to mix in the range of 0.05 to 10 parts by mass in 100 parts by mass of the curable resin composition containing all of the curing agent, non-halogen flame retardant and other fillers and additives. It is preferable to mix | blend in the range of 1-5 mass parts.
また前記窒素系難燃剤を使用する際、金属水酸化物、モリブデン化合物等を併用してもよい。 Moreover, when using the said nitrogen-type flame retardant, you may use together a metal hydroxide, a molybdenum compound, etc.
前記シリコーン系難燃剤としては、ケイ素原子を含有する有機化合物であれば特に制限がなく使用でき、例えば、シリコーンオイル、シリコーンゴム、シリコーン樹脂等が挙げられる。 The silicone flame retardant is not particularly limited as long as it is an organic compound containing a silicon atom, and examples thereof include silicone oil, silicone rubber, and silicone resin.
前記シリコーン系難燃剤の配合量としては、シリコーン系難燃剤の種類、硬化性樹脂組成物の他の成分、所望の難燃性の程度によって適宜選択されるものであるが、例えば、エポキシ樹脂、硬化剤、非ハロゲン系難燃剤及びその他の充填材や添加剤等全てを配合した硬化性樹脂組成物１００質量部中、０．０５〜２０質量部の範囲で配合することが好ましい。また前記シリコーン系難燃剤を使用する際、モリブデン化合物、アルミナ等を併用してもよい。 The amount of the silicone-based flame retardant is appropriately selected depending on the type of the silicone-based flame retardant, the other components of the curable resin composition, and the desired degree of flame retardancy. For example, an epoxy resin, It is preferable to mix in the range of 0.05 to 20 parts by mass in 100 parts by mass of the curable resin composition containing all of the curing agent, non-halogen flame retardant and other fillers and additives. Moreover, when using the said silicone type flame retardant, you may use a molybdenum compound, an alumina, etc. together.
前記無機系難燃剤としては、例えば、金属水酸化物、金属酸化物、金属炭酸塩化合物、金属粉、ホウ素化合物、低融点ガラス等が挙げられる。 Examples of the inorganic flame retardant include metal hydroxide, metal oxide, metal carbonate compound, metal powder, boron compound, and low melting point glass.
前記金属水酸化物の具体例としては、例えば、水酸化アルミニウム、水酸化マグネシウム、ドロマイト、ハイドロタルサイト、水酸化カルシウム、水酸化バリウム、水酸化ジルコニウム等を挙げることができる。 Specific examples of the metal hydroxide include aluminum hydroxide, magnesium hydroxide, dolomite, hydrotalcite, calcium hydroxide, barium hydroxide, zirconium hydroxide and the like.
前記金属酸化物の具体例としては、例えば、モリブデン酸亜鉛、三酸化モリブデン、スズ酸亜鉛、酸化スズ、酸化アルミニウム、酸化鉄、酸化チタン、酸化マンガン、酸化ジルコニウム、酸化亜鉛、酸化モリブデン、酸化コバルト、酸化ビスマス、酸化クロム、酸化ニッケル、酸化銅、酸化タングステン等を挙げることができる。 Specific examples of the metal oxide include, for example, zinc molybdate, molybdenum trioxide, zinc stannate, tin oxide, aluminum oxide, iron oxide, titanium oxide, manganese oxide, zirconium oxide, zinc oxide, molybdenum oxide, and cobalt oxide. Bismuth oxide, chromium oxide, nickel oxide, copper oxide, tungsten oxide and the like.
前記金属炭酸塩化合物の具体例としては、例えば、炭酸亜鉛、炭酸マグネシウム、炭酸カルシウム、炭酸バリウム、塩基性炭酸マグネシウム、炭酸アルミニウム、炭酸鉄、炭酸コバルト、炭酸チタン等を挙げることができる。 Specific examples of the metal carbonate compound include zinc carbonate, magnesium carbonate, calcium carbonate, barium carbonate, basic magnesium carbonate, aluminum carbonate, iron carbonate, cobalt carbonate, and titanium carbonate.
前記金属粉の具体例としては、例えば、アルミニウム、鉄、チタン、マンガン、亜鉛、モリブデン、コバルト、ビスマス、クロム、ニッケル、銅、タングステン、スズ等を挙げることができる。 Specific examples of the metal powder include aluminum, iron, titanium, manganese, zinc, molybdenum, cobalt, bismuth, chromium, nickel, copper, tungsten, and tin.
前記ホウ素化合物の具体例としては、例えば、ホウ酸亜鉛、メタホウ酸亜鉛、メタホウ酸バリウム、ホウ酸、ホウ砂等を挙げることができる。 Specific examples of the boron compound include zinc borate, zinc metaborate, barium metaborate, boric acid, and borax.
前記低融点ガラスの具体例としては、例えば、シープリー（ボクスイ・ブラウン社）、水和ガラスＳｉＯ２−ＭｇＯ−Ｈ２Ｏ、ＰｂＯ−Ｂ２Ｏ３系、ＺｎＯ−Ｐ２Ｏ５−ＭｇＯ系、Ｐ２Ｏ５−Ｂ２Ｏ３−ＰｂＯ−ＭｇＯ系、Ｐ−Ｓｎ−Ｏ−Ｆ系、ＰｂＯ−Ｖ２Ｏ５−ＴｅＯ２系、Ａｌ２Ｏ３−Ｈ２Ｏ系、ホウ珪酸鉛系等のガラス状化合物を挙げることができる。 Specific examples of the low-melting-point glass include, for example, Ceeley (Bokusui Brown), hydrated glass SiO 2 —MgO—H 2 O, PbO—B 2 O 3 system, ZnO—P 2 O 5 —MgO system, P 2 O 5 —B 2 O 3 —PbO—MgO, P—Sn—O—F, PbO—V 2 O 5 —TeO 2 , Al 2 O 3 —H 2 O, lead borosilicate, etc. The glassy compound can be mentioned.
前記無機系難燃剤の配合量としては、無機系難燃剤の種類、硬化性樹脂組成物の他の成分、所望の難燃性の程度によって適宜選択されるものであるが、例えば、エポキシ樹脂、硬化剤、非ハロゲン系難燃剤及びその他の充填材や添加剤等全てを配合した硬化性樹脂組成物１００質量部中、０．０５〜２０質量部の範囲で配合することが好ましく、特に０．５〜１５質量部の範囲で配合することが好ましい。 The amount of the inorganic flame retardant is appropriately selected depending on the type of the inorganic flame retardant, the other components of the curable resin composition, and the desired degree of flame retardancy. For example, an epoxy resin, It is preferable to mix in the range of 0.05 to 20 parts by mass in 100 parts by mass of the curable resin composition containing all of the curing agent, non-halogen flame retardant and other fillers and additives. It is preferable to mix | blend in 5-15 mass parts.
前記有機金属塩系難燃剤としては、例えば、フェロセン、アセチルアセトナート金属錯体、有機金属カルボニル化合物、有機コバルト塩化合物、有機スルホン酸金属塩、金属原子と芳香族化合物又は複素環化合物がイオン結合又は配位結合した化合物等が挙げられる。 Examples of the organic metal salt flame retardant include ferrocene, acetylacetonate metal complex, organic metal carbonyl compound, organic cobalt salt compound, organic sulfonic acid metal salt, metal atom and aromatic compound or heterocyclic compound or an ionic bond or Examples thereof include a coordinated compound.
前記有機金属塩系難燃剤の配合量としては、有機金属塩系難燃剤の種類、硬化性樹脂組成物の他の成分、所望の難燃性の程度によって適宜選択されるものであるが、例えば、エポキシ樹脂、硬化剤、非ハロゲン系難燃剤及びその他の充填材や添加剤等全てを配合した硬化性樹脂組成物１００質量部中、０．００５〜１０質量部の範囲で配合することが好ましい。 The amount of the organic metal salt flame retardant is appropriately selected depending on the type of the organic metal salt flame retardant, the other components of the curable resin composition, and the desired degree of flame retardancy. In 100 parts by mass of the curable resin composition in which all of epoxy resin, curing agent, non-halogen flame retardant and other fillers and additives are blended, it is preferably blended in the range of 0.005 to 10 parts by mass. .
本発明の硬化性樹脂組成物には、必要に応じて無機質充填材を配合することができる。前記無機質充填材としては、例えば、溶融シリカ、結晶シリカ、アルミナ、窒化珪素、水酸化アルミ等が挙げられる。前記無機充填材の配合量を特に大きくする場合は溶融シリカを用いることが好ましい。前記溶融シリカは破砕状、球状のいずれでも使用可能であるが、溶融シリカの配合量を高め且つ成形材料の溶融粘度の上昇を抑制するためには、球状のものを主に用いる方が好ましい。更に球状シリカの配合量を高めるためには、球状シリカの粒度分布を適当に調整することが好ましい。その充填率は難燃性を考慮して、高い方が好ましく、硬化性樹脂組成物の全体量に対して２０質量％以上が特に好ましい。また導電ペーストなどの用途に使用する場合は、銀粉や銅粉等の導電性充填剤を用いることができる。 An inorganic filler can be mix | blended with the curable resin composition of this invention as needed. Examples of the inorganic filler include fused silica, crystalline silica, alumina, silicon nitride, and aluminum hydroxide. When particularly increasing the blending amount of the inorganic filler, it is preferable to use fused silica. The fused silica can be used in either a crushed shape or a spherical shape. However, in order to increase the blending amount of the fused silica and suppress an increase in the melt viscosity of the molding material, it is preferable to mainly use a spherical shape. In order to further increase the blending amount of the spherical silica, it is preferable to appropriately adjust the particle size distribution of the spherical silica. The filling rate is preferably higher in consideration of flame retardancy, and particularly preferably 20% by mass or more with respect to the total amount of the curable resin composition. Moreover, when using for uses, such as an electrically conductive paste, electroconductive fillers, such as silver powder and copper powder, can be used.
本発明の硬化性樹脂組成物は、必要に応じて、シランカップリング剤、離型剤、顔料、乳化剤等の種々の配合剤を添加することができる。 Various compounding agents, such as a silane coupling agent, a mold release agent, a pigment, an emulsifier, can be added to the curable resin composition of this invention as needed.
本発明の硬化性樹脂組成物は、上記した各成分を均一に混合することにより得られる。本発明のエポキシ樹脂、硬化剤、更に必要により硬化促進剤の配合された本発明の硬化性樹脂組成物は従来知られている方法と同様の方法で容易に硬化物とすることができる。該硬化物としては積層物、注型物、接着層、塗膜、フィルム等の成形硬化物が挙げられる。 The curable resin composition of the present invention can be obtained by uniformly mixing the above-described components. The curable resin composition of the present invention in which the epoxy resin of the present invention, a curing agent, and further, if necessary, a curing accelerator are blended can be easily made into a cured product by a method similar to a conventionally known method. Examples of the cured product include molded cured products such as laminates, cast products, adhesive layers, coating films, and films.
本発明の硬化性樹脂組成物が用いられる用途としては、プリント配線板材料、樹脂注型材料、接着剤、ビルドアップ基板用層間絶縁材料、ビルドアップ用接着フィルム等が挙げられる。また、これら各種用途のうち、プリント配線板や電子回路基板用絶縁材料、ビルドアップ用接着フィルム用途では、コンデンサ等の受動部品やＩＣチップ等の能動部品を基板内に埋め込んだ所謂電子部品内蔵用基板用の絶縁材料として用いることができる。これらの中でも、熱履歴後の耐熱性変化が小さい、低熱膨張性、及び溶剤溶解性といった特性からプリント配線板材料やビルドアップ用接着フィルムに用いることが好ましい。 Applications for which the curable resin composition of the present invention is used include printed wiring board materials, resin casting materials, adhesives, interlayer insulation materials for build-up substrates, and adhesive films for build-ups. Among these various applications, in printed circuit boards, insulating materials for electronic circuit boards, and adhesive films for build-up, passive parts such as capacitors and active parts such as IC chips are embedded in so-called electronic parts. It can be used as an insulating material for a substrate. Among these, it is preferable to use for the printed wiring board material and the adhesive film for buildup from the characteristics, such as a small heat resistance change after heat history, low thermal expansibility, and solvent solubility.
ここで、本発明の硬化性樹脂組成物からプリント回路基板を製造するには、前記有機溶剤を含むワニス状の硬化性樹脂組成物を、補強基材に含浸し銅箔を重ねて加熱圧着させる方法が挙げられる。ここで使用し得る補強基材は、紙、ガラス布、ガラス不織布、アラミド紙、アラミド布、ガラスマット、ガラスロービング布などが挙げられる。かかる方法を更に詳述すれば、先ず、前記したワニス状の硬化性樹脂組成物を、用いた溶剤種に応じた加熱温度、好ましくは５０〜１７０℃で加熱することによって、硬化物であるプリプレグを得る。この時用いる樹脂組成物と補強基材の質量割合としては、特に限定されないが、通常、プリプレグ中の樹脂分が２０〜６０質量％となるように調製することが好ましい。次いで、上記のようにして得られたプリプレグを、常法により積層し、適宜銅箔を重ねて、１〜１０ＭＰａの加圧下に１７０〜２５０℃で１０分〜３時間、加熱圧着させることにより、目的とするプリント回路基板を得ることができる。 Here, in order to produce a printed circuit board from the curable resin composition of the present invention, the varnish-like curable resin composition containing the organic solvent is impregnated into a reinforcing base material, and a copper foil is overlaid and thermocompression bonded. A method is mentioned. Examples of the reinforcing substrate that can be used here include paper, glass cloth, glass nonwoven fabric, aramid paper, aramid cloth, glass mat, and glass roving cloth. If this method is described in further detail, first, the varnish-like curable resin composition is heated at a heating temperature corresponding to the solvent type used, preferably 50 to 170 ° C., thereby being a prepreg which is a cured product. Get. The mass ratio of the resin composition and the reinforcing substrate used at this time is not particularly limited, but it is usually preferable that the resin content in the prepreg is 20 to 60% by mass. Next, the prepreg obtained as described above is laminated by a conventional method, and a copper foil is appropriately stacked, and then subjected to thermocompression bonding at a pressure of 1 to 10 MPa at 170 to 250 ° C. for 10 minutes to 3 hours, A desired printed circuit board can be obtained.
本発明の硬化性樹脂組成物をレジストインキとして使用する場合には、例えば該硬化性樹脂組成物の硬化剤としてカチオン重合触媒を用い、更に、顔料、タルク、及びフィラーを加えてレジストインキ用組成物とした後、スクリーン印刷方式にてプリント基板上に塗布した後、レジストインキ硬化物とする方法が挙げられる。 When the curable resin composition of the present invention is used as a resist ink, for example, a cationic polymerization catalyst is used as a curing agent for the curable resin composition, and a pigment, talc, and filler are further added to form a resist ink composition. After making it into a product, after applying on a printed board by a screen printing method, a method of forming a resist ink cured product can be mentioned.
本発明の硬化性樹脂組成物を導電ペーストとして使用する場合には、例えば、微細導電性粒子を該硬化性樹脂組成物中に分散させ異方性導電膜用組成物とする方法、室温で液状である回路接続用ペースト樹脂組成物や異方性導電接着剤とする方法が挙げられる。 When the curable resin composition of the present invention is used as a conductive paste, for example, a method of dispersing fine conductive particles in the curable resin composition to obtain a composition for anisotropic conductive film, liquid at room temperature And a paste resin composition for circuit connection and an anisotropic conductive adhesive.
本発明の硬化性樹脂組成物からビルドアップ基板用層間絶縁材料を得る方法としては例えば、ゴム、フィラーなどを適宜配合した当該硬化性樹脂組成物を、回路を形成した配線基板にスプレーコーティング法、カーテンコーティング法等を用いて塗布した後、硬化させる。その後、必要に応じて所定のスルーホール部等の穴あけを行った後、粗化剤により処理し、その表面を湯洗することによって、凹凸を形成させ、銅などの金属をめっき処理する。前記めっき方法としては、無電解めっき、電解めっき処理が好ましく、また前記粗化剤としては酸化剤、アルカリ、有機溶剤等が挙げられる。このような操作を所望に応じて順次繰り返し、樹脂絶縁層及び所定の回路パターンの導体層を交互にビルドアップして形成することにより、ビルドアップ基盤を得ることができる。但し、スルーホール部の穴あけは、最外層の樹脂絶縁層の形成後に行う。また、銅箔上で当該樹脂組成物を半硬化させた樹脂付き銅箔を、回路を形成した配線基板上に、１７０〜２５０℃で加熱圧着することで、粗化面を形成、メッキ処理の工程を省き、ビルドアップ基板を作製することも可能である。 As a method for obtaining an interlayer insulating material for a build-up substrate from the curable resin composition of the present invention, for example, the curable resin composition appropriately blended with rubber, filler, etc., spray coating method on a wiring board on which a circuit is formed, After applying using a curtain coating method or the like, it is cured. Then, after drilling a predetermined through-hole part etc. as needed, it treats with a roughening agent, forms the unevenness | corrugation by washing the surface with hot water, and metal-treats, such as copper. As the plating method, electroless plating or electrolytic plating treatment is preferable, and examples of the roughening agent include an oxidizing agent, an alkali, and an organic solvent. Such operations are sequentially repeated as desired, and a build-up base can be obtained by alternately building up and forming the resin insulating layer and the conductor layer having a predetermined circuit pattern. However, the through-hole portion is formed after the outermost resin insulating layer is formed. In addition, a resin-coated copper foil obtained by semi-curing the resin composition on the copper foil is thermocompression-bonded at 170 to 250 ° C. on a circuit board on which a circuit is formed, thereby forming a roughened surface and plating treatment. It is also possible to produce a build-up substrate by omitting the process.
本発明の硬化性樹脂組成物からビルドアップ用接着フィルムを製造する方法は、例えば、本発明の硬化性樹脂組成物を、支持フィルム上に塗布し樹脂組成物層を形成させて多層プリント配線板用の接着フィルムとする方法が挙げられる。 The method for producing an adhesive film for buildup from the curable resin composition of the present invention is, for example, a multilayer printed wiring board in which the curable resin composition of the present invention is applied on a support film to form a resin composition layer. And an adhesive film for use.
本発明の硬化性樹脂組成物をビルドアップ用接着フィルムに用いる場合、該接着フィルムは、真空ラミネート法におけるラミネートの温度条件（通常７０℃〜１４０℃）で軟化し、回路基板のラミネートと同時に、回路基板に存在するビアホール或いはスルーホール内の樹脂充填が可能な流動性（樹脂流れ）を示すことが肝要であり、このような特性を発現するよう上記各成分を配合することが好ましい。 When the curable resin composition of the present invention is used for a build-up adhesive film, the adhesive film is softened under the temperature condition of the laminate in the vacuum laminating method (usually 70 ° C. to 140 ° C.), and simultaneously with the lamination of the circuit board, It is important to show fluidity (resin flow) that allows resin filling in via holes or through holes present in a circuit board, and it is preferable to blend the above-described components so as to exhibit such characteristics.
ここで、多層プリント配線板のスルーホールの直径は通常０．１〜０．５ｍｍ、深さは通常０．１〜１．２ｍｍであり、通常この範囲で樹脂充填を可能とするのが好ましい。なお回路基板の両面をラミネートする場合はスルーホールの１／２程度充填されることが望ましい。 Here, the diameter of the through hole of the multilayer printed wiring board is usually 0.1 to 0.5 mm, and the depth is usually 0.1 to 1.2 mm. It is usually preferable to allow resin filling in this range. When laminating both surfaces of the circuit board, it is desirable to fill about 1/2 of the through hole.
上記した接着フィルムを製造する方法は、具体的には、ワニス状の本発明の硬化性樹脂組成物を調製した後、支持フィルム（Ｙ）の表面に、このワニス状の組成物を塗布し、更に加熱、あるいは熱風吹きつけ等により有機溶剤を乾燥させて硬化性樹脂組成物の層（Ｘ）を形成させることにより製造することができる。 Specifically, the method for producing the adhesive film described above is, after preparing the varnish-like curable resin composition of the present invention, coating the varnish-like composition on the surface of the support film (Y), Further, it can be produced by drying the organic solvent by heating or blowing hot air to form the layer (X) of the curable resin composition.
形成される層（Ｘ）の厚さは、通常、導体層の厚さ以上とする。回路基板が有する導体層の厚さは通常５〜７０μｍの範囲であるので、樹脂組成物層の厚さは１０〜１００μｍの厚みを有するのが好ましい。 The thickness of the formed layer (X) is usually not less than the thickness of the conductor layer. Since the thickness of the conductor layer of the circuit board is usually in the range of 5 to 70 μm, the thickness of the resin composition layer is preferably 10 to 100 μm.
なお、本発明における層（Ｘ）は、後述する保護フィルムで保護されていてもよい。保護フィルムで保護することにより、樹脂組成物層表面へのゴミ等の付着やキズを防止することができる。 In addition, the layer (X) in this invention may be protected with the protective film mentioned later. By protecting with a protective film, it is possible to prevent dust and the like from being attached to the surface of the resin composition layer and scratches.
前記した支持フィルム及び保護フィルムは、ポリエチレン、ポリプロピレン、ポリ塩化ビニル等のポリオレフィン、ポリエチレンテレフタレート（以下「ＰＥＴ」と略称することがある。）、ポリエチレンナフタレート等のポリエステル、ポリカーボネート、ポリイミド、更には離型紙や銅箔、アルミニウム箔等の金属箔などを挙げることができる。なお、支持フィルム及び保護フィルムはマッド処理、コロナ処理の他、離型処理を施してあってもよい。 The above-mentioned support film and protective film are made of polyolefin such as polyethylene, polypropylene and polyvinyl chloride, polyethylene terephthalate (hereinafter sometimes abbreviated as “PET”), polyester such as polyethylene naphthalate, polycarbonate, polyimide, and further. Examples thereof include metal foil such as pattern paper, copper foil, and aluminum foil. In addition, the support film and the protective film may be subjected to a release treatment in addition to the mud treatment and the corona treatment.
支持フィルムの厚さは特に限定されないが、通常１０〜１５０μｍであり、好ましくは２５〜５０μｍの範囲で用いられる。また保護フィルムの厚さは１〜４０μｍとするのが好ましい。 Although the thickness of a support film is not specifically limited, Usually, it is 10-150 micrometers, Preferably it is used in 25-50 micrometers. Moreover, it is preferable that the thickness of a protective film shall be 1-40 micrometers.
上記した支持フィルム（Ｙ）は、回路基板にラミネートした後に、或いは加熱硬化することにより絶縁層を形成した後に、剥離される。接着フィルムを加熱硬化した後に支持フィルム（Ｙ）を剥離すれば、硬化工程でのゴミ等の付着を防ぐことができる。硬化後に剥離する場合、通常、支持フィルムには予め離型処理が施される。 The support film (Y) described above is peeled off after being laminated on a circuit board or after forming an insulating layer by heat curing. If the support film (Y) is peeled after the adhesive film is heat-cured, adhesion of dust and the like in the curing step can be prevented. In the case of peeling after curing, the support film is usually subjected to a release treatment in advance.
次に、上記のようして得られた接着フィルムを用いて多層プリント配線板を製造する方法は、例えば、層（Ｘ）が保護フィルムで保護されている場合はこれらを剥離した後、層（Ｘ）を回路基板に直接接するように、回路基板の片面又は両面に、例えば真空ラミネート法によりラミネートする。ラミネートの方法はバッチ式であってもロールでの連続式であってもよい。またラミネートを行う前に接着フィルム及び回路基板を必要により加熱（プレヒート）しておいてもよい。 Next, the method for producing a multilayer printed wiring board using the adhesive film obtained as described above is, for example, when the layer (X) is protected by a protective film, after peeling these layers ( X) is laminated on one side or both sides of the circuit board so as to be in direct contact with the circuit board, for example, by a vacuum laminating method. The laminating method may be a batch method or a continuous method using a roll. Further, the adhesive film and the circuit board may be heated (preheated) as necessary before lamination.
ラミネートの条件は、圧着温度（ラミネート温度）を好ましくは７０〜１４０℃、圧着圧力を好ましくは１〜１１ｋｇｆ／ｃｍ２（９．８×１０４〜１０７．９×１０４Ｎ／ｍ２）とし、空気圧２０ｍｍＨｇ（２６．７ｈＰａ）以下の減圧下でラミネートすることが好ましい。 Lamination conditions are preferably a pressure bonding temperature (laminating temperature) of 70 to 140 ° C., a pressure bonding pressure of preferably 1 to 11 kgf / cm 2 (9.8 × 10 4 to 107.9 × 10 4 N / m 2), and air pressure. Lamination is preferably performed under a reduced pressure of 20 mmHg (26.7 hPa) or less.
本発明の硬化物を得る方法としては、一般的な硬化性樹脂組成物の硬化方法に準拠すればよいが、例えば加熱温度条件は、組み合わせる硬化剤の種類や用途等によって、適宜選択すればよいが、上記方法によって得られた組成物を、２０〜２５０℃程度の温度範囲で加熱すればよい。 The method for obtaining the cured product of the present invention may be based on a general curing method for a curable resin composition, but for example, the heating temperature condition may be appropriately selected depending on the kind of curing agent to be combined and the use. However, what is necessary is just to heat the composition obtained by the said method in the temperature range about 20-250 degreeC.
従って、該クレゾール−ナフトール樹脂を用いることによって、クレゾール−ナフトール樹脂を硬化物とした際、熱履歴後の耐熱性変化が少なく、低熱膨張率を発現でき、最先端のプリント配線板材料に適用できる。また、該クレゾール−ナフトール樹脂は、本発明の製造方法にて容易に効率よく製造する事が出来、目的とする前述の性能のレベルに応じた分子設計が可能となる。 Therefore, by using the cresol-naphthol resin, when the cresol-naphthol resin is used as a cured product, there is little change in heat resistance after the heat history, a low coefficient of thermal expansion can be expressed, and it can be applied to the latest printed wiring board materials. . Further, the cresol-naphthol resin can be easily and efficiently manufactured by the manufacturing method of the present invention, and the molecular design according to the target level of the performance described above becomes possible.
次に本発明を実施例、比較例により具体的に説明するが、以下において「部」及び「％」は特に断わりのない限り質量基準である。尚、ＧＰＣ、ＮＭＲ、ＭＳスペクトルは以下の条件にて測定した。 Next, the present invention will be specifically described with reference to Examples and Comparative Examples. In the following, “parts” and “%” are based on mass unless otherwise specified. GPC, NMR, and MS spectra were measured under the following conditions.
１）ＧＰＣ：測定条件は以下の通り。
測定装置 ：東ソー株式会社製「ＨＬＣ−８２２０ ＧＰＣ」、
カラム：東ソー株式会社製ガードカラム「ＨＸＬ−Ｌ」
＋東ソー株式会社製「ＴＳＫ−ＧＥＬ Ｇ２０００ＨＸＬ」
＋東ソー株式会社製「ＴＳＫ−ＧＥＬ Ｇ２０００ＨＸＬ」
＋東ソー株式会社製「ＴＳＫ−ＧＥＬ Ｇ３０００ＨＸＬ」
＋東ソー株式会社製「ＴＳＫ−ＧＥＬ Ｇ４０００ＨＸＬ」
検出器： ＲＩ（示差屈折計）
データ処理：東ソー株式会社製「ＧＰＣ−８０２０モデルIIバージョン４．１０」
測定条件： カラム温度 ４０℃
展開溶媒 テトラヒドロフラン
流速 １．０ｍｌ／分
標準 ： 前記「ＧＰＣ−８０２０モデルIIバージョン４．１０」の測定マニュアルに準拠して、分子量が既知の下記の単分散ポリスチレンを用いた。
（使用ポリスチレン）
東ソー株式会社製「Ａ−５００」
東ソー株式会社製「Ａ−１０００」
東ソー株式会社製「Ａ−２５００」
東ソー株式会社製「Ａ−５０００」
東ソー株式会社製「Ｆ−１」
東ソー株式会社製「Ｆ−２」
東ソー株式会社製「Ｆ−４」
東ソー株式会社製「Ｆ−１０」
東ソー株式会社製「Ｆ−２０」
東ソー株式会社製「Ｆ−４０」
東ソー株式会社製「Ｆ−８０」
東ソー株式会社製「Ｆ−１２８」
試料 ： 樹脂固形分換算で１．０質量％のテトラヒドロフラン溶液をマイクロフィルターでろ過したもの（５０μｌ）。
1) GPC: The measurement conditions are as follows.
Measuring device: “HLC-8220 GPC” manufactured by Tosoh Corporation
Column: Guard column “HXL-L” manufactured by Tosoh Corporation
+ "TSK-GEL G2000HXL" manufactured by Tosoh Corporation
+ "TSK-GEL G2000HXL" manufactured by Tosoh Corporation
+ Tosoh Corporation “TSK-GEL G3000HXL”
+ Tosoh Corporation “TSK-GEL G4000HXL”
Detector: RI (differential refractometer)
Data processing: “GPC-8020 Model II version 4.10” manufactured by Tosoh Corporation
Measurement conditions: Column temperature 40 ° C
Developing solvent Tetrahydrofuran
Flow rate: 1.0 ml / min Standard: The following monodisperse polystyrene having a known molecular weight was used in accordance with the measurement manual of “GPC-8020 Model II version 4.10”.
(Polystyrene used)
“A-500” manufactured by Tosoh Corporation
"A-1000" manufactured by Tosoh Corporation
"A-2500" manufactured by Tosoh Corporation
"A-5000" manufactured by Tosoh Corporation
“F-1” manufactured by Tosoh Corporation
"F-2" manufactured by Tosoh Corporation
“F-4” manufactured by Tosoh Corporation
“F-10” manufactured by Tosoh Corporation
“F-20” manufactured by Tosoh Corporation
“F-40” manufactured by Tosoh Corporation
“F-80” manufactured by Tosoh Corporation
“F-128” manufactured by Tosoh Corporation
Sample: A 1.0 mass% tetrahydrofuran solution filtered in terms of resin solids and filtered through a microfilter (50 μl).
実施例１
温度計、滴下ロート、冷却管、分留管、撹拌器を取り付けたフラスコに、β−ナフトール２１６部（１．５モル）、イソプロピルアルコール２５０質量部、３７％ホルマリン水溶液１２２質量部（１．５０モル）、４９％水酸化ナトリウム３１質量部（０．３８モル）を仕込み、室温から７５℃まで攪拌しながら昇温し、７５℃で１時間撹拌した。続いて、オルソクレゾール８１質量部（０．７５モル）を仕込み、さらに７５℃で８時間攪拌した。反応終了後、第１リン酸ソーダ４５質量部を添加して中和した後、メチルイソブチルケトン６３０部加え、水１５８量部で３回洗浄を繰り返した後に、加熱減圧下乾燥してクレゾール−ナフトール樹脂（Ａ−１）２９０質量部得た。得られたクレゾール−ナフトール樹脂（Ａ−１）のＧＰＣチャートを図１に示す。クレゾール−ナフトール樹脂（Ａ−１）の水酸基当量は１４０グラム/当量であり、分子量分布（Ｍｗ／Ｍｎ）は１．１３であり、ＧＰＣチャートから算出される前記２量体（ｘ２）に相当する成分の含有率は１８．５％、下記構造式（ａ）で表される前記３官能化合物（ｘ３）に相当する成分の含有率は５１．５％、前記４官能化合物（ｘ４）に相当する成分の含有量は２０．８％であった。
Example 1
In a flask equipped with a thermometer, dropping funnel, condenser, fractionator, and stirrer, 216 parts (1.5 mol) of β-naphthol, 250 parts by mass of isopropyl alcohol, 122 parts by mass of 37% formalin aqueous solution (1.50) Mol), 31 parts by mass (0.38 mol) of 49% sodium hydroxide, the temperature was raised from room temperature to 75 ° C. with stirring, and the mixture was stirred at 75 ° C. for 1 hour. Subsequently, 81 parts by mass (0.75 mol) of ortho-cresol was charged and further stirred at 75 ° C. for 8 hours. After completion of the reaction, the reaction mixture was neutralized by adding 45 parts by mass of primary sodium phosphate, added with 630 parts of methyl isobutyl ketone, washed three times with 158 parts by weight of water, dried under heating under reduced pressure, and cresol-naphthol. As a result, 290 parts by mass of Resin (A-1) was obtained. The GPC chart of the obtained cresol-naphthol resin (A-1) is shown in FIG. The hydroxyl equivalent of the cresol-naphthol resin (A-1) is 140 g / equivalent, the molecular weight distribution (Mw / Mn) is 1.13, which corresponds to the dimer (x2) calculated from the GPC chart. The content of the component is 18.5%, and the content of the component corresponding to the trifunctional compound (x3) represented by the following structural formula (a) is 51.5%, which corresponds to the tetrafunctional compound (x4). The component content was 20.8%.
実施例２
３７％ホルマリン水溶液１０７質量部（１．３２モル）、オルソクレゾール６１質量部（０．５６モル）に変更した以外は実施例１と同様にして、クレゾール−ナフトール樹脂（Ａ−２）２５８質量部得た。得られたクレゾール−ナフトール樹脂（Ａ−２）のＧＰＣチャートを図２に示す。クレゾール−ナフトール樹脂（Ａ−２）の水酸基当量は１４２グラム/当量であり、分子量分布（Ｍｗ／Ｍｎ）は１．１４であり、ＧＰＣチャートから算出される前記２量体（ｘ２）に相当する成分の含有率は３２．２％、構造式（ａ）で表される前記３官能化合物（ｘ３）に相当する成分の含有率は４４．６％、前記４官能化合物（ｘ４）に相当する成分の含有量は１５．９％であった。
Example 2
Except having changed into 107 mass parts (1.32 mol) of 37% formalin aqueous solution and 61 mass parts (0.56 mol) of ortho cresol, it is 258 mass parts of cresol-naphthol resin (A-2) like Example 1. Obtained. The GPC chart of the obtained cresol-naphthol resin (A-2) is shown in FIG. The hydroxyl equivalent of the cresol-naphthol resin (A-2) is 142 g / equivalent, the molecular weight distribution (Mw / Mn) is 1.14, which corresponds to the dimer (x2) calculated from the GPC chart. The content of the component is 32.2%, the content of the component corresponding to the trifunctional compound (x3) represented by the structural formula (a) is 44.6%, the component corresponding to the tetrafunctional compound (x4) The content of was 15.9%.
実施例３
３７％ホルマリン水溶液１５２質量部（１．８７モル）、オルソクレゾール１２２質量部（１．１３モル）に変更した以外は実施例１と同様にして、クレゾール−ナフトール樹脂（Ａ−３）３２０質量部得た。得られたクレゾール−ナフトール樹脂（Ａ−３）のＧＰＣチャートを図３に示す。クレゾール−ナフトール樹脂（Ａ−３）の水酸基当量は１３７グラム/当量であり、分子量分布（Ｍｗ／Ｍｎ）は１．１１であり、ＧＰＣチャートから算出される前記２量体（ｘ２）に相当する成分の含有率は７．２％、構造式（ａ）で表される前記３官能化合物（ｘ３）に相当する成分の含有率は３４．９％、前記４官能化合物（ｘ４）に相当する成分の含有量は３９．８％であった。
Example 3
320 parts by mass of cresol-naphthol resin (A-3) in the same manner as in Example 1 except for changing to 152 parts by mass (1.87 mol) of 37% formalin aqueous solution and 122 parts by mass (1.13 mol) of orthocresol. Obtained. The GPC chart of the obtained cresol-naphthol resin (A-3) is shown in FIG. The hydroxyl equivalent of the cresol-naphthol resin (A-3) is 137 g / equivalent, and the molecular weight distribution (Mw / Mn) is 1.11, which corresponds to the dimer (x2) calculated from the GPC chart. The content of the component is 7.2%, the content of the component corresponding to the trifunctional compound (x3) represented by the structural formula (a) is 34.9%, the component corresponding to the tetrafunctional compound (x4) The content of was 39.8%.
比較合成例１
温度計、滴下ロート、冷却管、分留管、撹拌器を取り付けたフラスコに、α−ナフトール５０５質量部（３．５０モル）、水１５８質量部、蓚酸５質量部を仕込み、室温から１００℃まで４５分で昇温しながら撹拌した。続いて、４２質量％ホルマリン水溶液１８６質量部（２．４５モル）を１時間要して滴下した。滴下終了後、さらに１００℃で１時間攪拌し、その後１８０℃まで３時間で昇温した。反応終了後、２００℃に昇温し加熱減圧下、水蒸気を吹き込むことによってフリーのα−ナフトールを除去してナフトール樹脂（Ａ’−１）４７５質量部を得た。得られたナフトール樹脂（Ａ’−１）の水酸基当量は１５７グラム/当量であった。得られたナフトール樹脂のＧＰＣチャートを図４に示す。
Comparative Synthesis Example 1
A flask equipped with a thermometer, a dropping funnel, a condenser tube, a fractionating tube and a stirrer was charged with 505 parts by mass of α-naphthol (3.50 mol), 158 parts by mass of water, and 5 parts by mass of oxalic acid. The mixture was stirred while raising the temperature in 45 minutes. Subsequently, 186 parts by mass (2.45 mol) of a 42 mass% formalin aqueous solution was added dropwise over 1 hour. After completion of dropping, the mixture was further stirred at 100 ° C. for 1 hour, and then heated to 180 ° C. in 3 hours. After completion of the reaction, the temperature was raised to 200 ° C., and steam was blown under reduced pressure to remove free α-naphthol to obtain 475 parts by mass of naphthol resin (A′-1). The obtained naphthol resin (A′-1) had a hydroxyl group equivalent of 157 g / equivalent. A GPC chart of the obtained naphthol resin is shown in FIG.
実施例４〜６及び比較例１
下記表１記載の配合に従い、硬化剤として前記クレゾール−ナフトール樹脂（Ａ−１）、（Ａ−２）、（Ａ−３）又はナフトール樹脂（Ａ’−１）を、エポキシ樹脂としてＤＩＣ(株)製「Ｎ−７７０」（フェノールノボラック型エポキシ樹脂、エポキシ当量：１８３ｇ／ｅｑ）を、硬化促進剤として２−エチル−４−メチルイミダゾール（２Ｅ４ＭＺ）を配合し、最終的に各組成物の不揮発分（Ｎ．Ｖ．）が５８質量％となるようにメチルエチルケトンを配合して調整した。次いで、下記の如き条件で硬化させて積層板を試作し、下記の方法で熱膨張率及び物性変化を評価した。結果を表１に示す。
Examples 4 to 6 and Comparative Example 1
In accordance with the formulation shown in Table 1 below, the cresol-naphthol resin (A-1), (A-2), (A-3) or naphthol resin (A′-1) as a curing agent and DIC Corporation as an epoxy resin are used. ) “N-770” (phenol novolac type epoxy resin, epoxy equivalent: 183 g / eq) and 2-ethyl-4-methylimidazole (2E4MZ) as a curing accelerator were blended, and finally each composition was nonvolatile. Methyl ethyl ketone was blended and adjusted so that the minute (NV) was 58% by mass. Subsequently, it was hardened on the following conditions, the laminated board was made as an experiment, and the thermal expansion coefficient and the physical property change were evaluated by the following method. The results are shown in Table 1.
＜積層板作製条件＞
基材：日東紡績株式会社製 ガラスクロス「#２１１６」（２１０×２８０ｍｍ）
プライ数：６ プリプレグ化条件：１６０℃
硬化条件：２００℃、４０ｋｇ／ｃｍ２で１．５時間、成型後板厚：０．８ｍｍ
<Laminate production conditions>
Base material: Glass cloth “# 2116” (210 × 280 mm) manufactured by Nitto Boseki Co., Ltd.
Number of plies: 6 Condition of prepreg: 160 ° C
Curing conditions: 200 ° C., 40 kg / cm 2 for 1.5 hours, post-molding plate thickness: 0.8 mm
＜熱履歴による耐熱性変化（耐熱性の変化量：ΔＴｇ）：ＤＭＡ（第１回測定、第２回測定のＴｇ差）＞
粘弾性測定装置（ＤＭＡ：レオメトリック社製固体粘弾性測定装置「ＲＳＡＩＩ」、レクタンギュラーテンション法；周波数１Ｈｚ、昇温速度３℃／ｍｉｎ）を用いて、以下の温度条件で２回、弾性率変化が最大となる（ｔａｎδ変化率が最も大きい）温度（Ｔｇ）を測定した。
温度条件
第１回測定：３５℃から２７５℃まで３℃／ｍｉｎで昇温
第２回測定：３５℃から３３０℃まで３℃／ｍｉｎで昇温
それぞれ得られた温度差をΔＴｇとして評価した。
<Heat resistance change due to thermal history (amount of change in heat resistance: ΔTg): DMA (Tg difference between first measurement and second measurement)>
Using a viscoelasticity measuring device (DMA: solid viscoelasticity measuring device “RSAII” manufactured by Rheometric, rectangular tension method;
Temperature conditions 1st measurement: temperature rise from 35 ° C. to 275 ° C. at 3 ° C./min 2nd measurement: temperature rise from 35 ° C. to 330 ° C. at 3 ° C./min Each obtained temperature difference was evaluated as ΔTg.
＜熱膨張率＞
積層板を５ｍｍ×５ｍｍ×０．８ｍｍのサイズに切り出し、これを試験片として熱機械分析装置（ＴＭＡ：セイコーインスツルメント社製ＳＳ−６１００）を用いて、圧縮モードで熱機械分析を行った。
測定条件
測定架重：８８．８ｍＮ
昇温速度：１０℃／分で２回
測定温度範囲：−５０℃から３００℃
上記条件での測定を同一サンプルにつき２回実施し、２回目の測定における、４０℃から６０℃の温度範囲における平均線膨張率を熱膨張係数として評価した。
<Coefficient of thermal expansion>
The laminate was cut into a size of 5 mm × 5 mm × 0.8 mm, and a thermomechanical analysis was performed in a compression mode using a thermomechanical analyzer (TMA: SS-6100 manufactured by Seiko Instruments Inc.) as a test piece. .
Measurement conditions Measurement weight: 88.8mN
Temperature increase rate: 2 times at 10 ° C / minute Measurement temperature range: -50 ° C to 300 ° C
The measurement under the above conditions was carried out twice for the same sample, and the average linear expansion coefficient in the temperature range of 40 ° C. to 60 ° C. in the second measurement was evaluated as the thermal expansion coefficient.
表１中の略号は以下の通りである。
Ｎ−７７０：フェノールノボラック型エポキシ樹脂（ＤＩＣ(株)製「Ｎ−７７０」、エポキシ当量：１８３ｇ／ｅｑ）
２Ｅ４ＭＺ：硬化促進剤（２−エチル−４−メチルイミダゾール）
Abbreviations in Table 1 are as follows.
N-770: phenol novolac type epoxy resin (“N-770” manufactured by DIC Corporation, epoxy equivalent: 183 g / eq)
2E4MZ: Curing accelerator (2-ethyl-4-methylimidazole)
Claims (12)
で表されるβ−ナフトール化合物の２量体（ｘ２）と、
下記構造式（２）
で表される３官能化合物（ｘ３）と、
下記構造式（３）
で表される４官能化合物（ｘ４）とを必須の成分として含有し、これらの合計の含有率が、ＧＰＣ測定における面積比率で７０％以上であることを特徴とするクレゾール−ナフトール樹脂。 A reaction product of ortho-cresol, β-naphthol compound, and formaldehyde, the following structural formula (1)
A dimer (x2) of a β-naphthol compound represented by:
The following structural formula (2)
A trifunctional compound (x3) represented by:
The following structural formula (3)
And a tetrafunctional compound (x4) represented by formula (1) as an essential component, and the total content thereof is 70% or more in terms of area ratio in GPC measurement.
The organic solvent is methyl cellosolve, isopropyl alcohol, ethyl cellosolve, toluene, xylene or methyl isobutyl ketone, its usage, the total mass per 100 parts by weight of ortho-cresol and β- naphthol compound is a raw material components, 5 The method for producing a cresol-naphthol resin according to claim 9 or 10, which is in a range of 70 parts by mass.
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