WO2023058554A1 - エポキシ樹脂の製造方法、エポキシ樹脂組成物、硬化物及び電気・電子部品 - Google Patents
エポキシ樹脂の製造方法、エポキシ樹脂組成物、硬化物及び電気・電子部品 Download PDFInfo
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- WO2023058554A1 WO2023058554A1 PCT/JP2022/036481 JP2022036481W WO2023058554A1 WO 2023058554 A1 WO2023058554 A1 WO 2023058554A1 JP 2022036481 W JP2022036481 W JP 2022036481W WO 2023058554 A1 WO2023058554 A1 WO 2023058554A1
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- epoxy resin
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- resin composition
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- epoxy
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- 125000003277 amino group Chemical group 0.000 description 1
- LHIJANUOQQMGNT-UHFFFAOYSA-N aminoethylethanolamine Chemical compound NCCNCCO LHIJANUOQQMGNT-UHFFFAOYSA-N 0.000 description 1
- IMUDHTPIFIBORV-UHFFFAOYSA-N aminoethylpiperazine Chemical compound NCCN1CCNCC1 IMUDHTPIFIBORV-UHFFFAOYSA-N 0.000 description 1
- 229940058905 antimony compound for treatment of leishmaniasis and trypanosomiasis Drugs 0.000 description 1
- 150000001463 antimony compounds Chemical class 0.000 description 1
- 239000003125 aqueous solvent Substances 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 125000000051 benzyloxy group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])O* 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- MRNZSTMRDWRNNR-UHFFFAOYSA-N bis(hexamethylene)triamine Chemical compound NCCCCCCNCCCCCCN MRNZSTMRDWRNNR-UHFFFAOYSA-N 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 235000009120 camo Nutrition 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000004203 carnauba wax Substances 0.000 description 1
- 235000013869 carnauba wax Nutrition 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 235000005607 chanvre indien Nutrition 0.000 description 1
- 239000007810 chemical reaction solvent Substances 0.000 description 1
- 125000000490 cinnamyl group Chemical group C(C=CC1=CC=CC=C1)* 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 125000003113 cycloheptyloxy group Chemical group C1(CCCCCC1)O* 0.000 description 1
- 125000003678 cyclohexadienyl group Chemical group C1(=CC=CCC1)* 0.000 description 1
- 125000000596 cyclohexenyl group Chemical group C1(=CCCCC1)* 0.000 description 1
- 125000002933 cyclohexyloxy group Chemical group C1(CCCCC1)O* 0.000 description 1
- 125000004410 cyclooctyloxy group Chemical group C1(CCCCCCC1)O* 0.000 description 1
- 229960002887 deanol Drugs 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 150000004985 diamines Chemical class 0.000 description 1
- CRGRWBQSZSQVIE-UHFFFAOYSA-N diazomethylbenzene Chemical compound [N-]=[N+]=CC1=CC=CC=C1 CRGRWBQSZSQVIE-UHFFFAOYSA-N 0.000 description 1
- QGBSISYHAICWAH-UHFFFAOYSA-N dicyandiamide Chemical compound NC(N)=NC#N QGBSISYHAICWAH-UHFFFAOYSA-N 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- CCAFPWNGIUBUSD-UHFFFAOYSA-N diethyl sulfoxide Chemical compound CCS(=O)CC CCAFPWNGIUBUSD-UHFFFAOYSA-N 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 239000000539 dimer Substances 0.000 description 1
- 125000006182 dimethyl benzyl group Chemical group 0.000 description 1
- HTDKEJXHILZNPP-UHFFFAOYSA-N dioctyl hydrogen phosphate Chemical compound CCCCCCCCOP(O)(=O)OCCCCCCCC HTDKEJXHILZNPP-UHFFFAOYSA-N 0.000 description 1
- XMQYIPNJVLNWOE-UHFFFAOYSA-N dioctyl hydrogen phosphite Chemical compound CCCCCCCCOP(O)OCCCCCCCC XMQYIPNJVLNWOE-UHFFFAOYSA-N 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 239000003480 eluent Substances 0.000 description 1
- GKIPXFAANLTWBM-UHFFFAOYSA-N epibromohydrin Chemical compound BrCC1CO1 GKIPXFAANLTWBM-UHFFFAOYSA-N 0.000 description 1
- FWDBOZPQNFPOLF-UHFFFAOYSA-N ethenyl(triethoxy)silane Chemical compound CCO[Si](OCC)(OCC)C=C FWDBOZPQNFPOLF-UHFFFAOYSA-N 0.000 description 1
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 description 1
- WOXXJEVNDJOOLV-UHFFFAOYSA-N ethenyl-tris(2-methoxyethoxy)silane Chemical compound COCCO[Si](OCCOC)(OCCOC)C=C WOXXJEVNDJOOLV-UHFFFAOYSA-N 0.000 description 1
- 125000001033 ether group Chemical group 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- ANSXAPJVJOKRDJ-UHFFFAOYSA-N furo[3,4-f][2]benzofuran-1,3,5,7-tetrone Chemical compound C1=C2C(=O)OC(=O)C2=CC2=C1C(=O)OC2=O ANSXAPJVJOKRDJ-UHFFFAOYSA-N 0.000 description 1
- 239000005350 fused silica glass Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 150000002357 guanidines Chemical class 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 239000011487 hemp Substances 0.000 description 1
- GNOIPBMMFNIUFM-UHFFFAOYSA-N hexamethylphosphoric triamide Chemical compound CN(C)P(=O)(N(C)C)N(C)C GNOIPBMMFNIUFM-UHFFFAOYSA-N 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical class [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- 239000012796 inorganic flame retardant Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 125000000654 isopropylidene group Chemical group C(C)(C)=* 0.000 description 1
- 239000005453 ketone based solvent Substances 0.000 description 1
- 125000005647 linker group Chemical group 0.000 description 1
- 229940018564 m-phenylenediamine Drugs 0.000 description 1
- 125000000040 m-tolyl group Chemical group [H]C1=C([H])C(*)=C([H])C(=C1[H])C([H])([H])[H] 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 150000007974 melamines Chemical class 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- ASHGTJPOSUFTGB-UHFFFAOYSA-N methyl resorcinol Natural products COC1=CC=CC(O)=C1 ASHGTJPOSUFTGB-UHFFFAOYSA-N 0.000 description 1
- 125000001570 methylene group Chemical group [H]C([H])([*:1])[*:2] 0.000 description 1
- VYKXQOYUCMREIS-UHFFFAOYSA-N methylhexahydrophthalic anhydride Chemical compound C1CCCC2C(=O)OC(=O)C21C VYKXQOYUCMREIS-UHFFFAOYSA-N 0.000 description 1
- LSHROXHEILXKHM-UHFFFAOYSA-N n'-[2-[2-[2-(2-aminoethylamino)ethylamino]ethylamino]ethyl]ethane-1,2-diamine Chemical compound NCCNCCNCCNCCNCCN LSHROXHEILXKHM-UHFFFAOYSA-N 0.000 description 1
- ZETYUTMSJWMKNQ-UHFFFAOYSA-N n,n',n'-trimethylhexane-1,6-diamine Chemical compound CNCCCCCCN(C)C ZETYUTMSJWMKNQ-UHFFFAOYSA-N 0.000 description 1
- YYHPPOGFPXBRRX-UHFFFAOYSA-N n,n-dichloro-1-[4-[(dichloroamino)methyl]phenyl]methanamine Chemical compound ClN(Cl)CC1=CC=C(CN(Cl)Cl)C=C1 YYHPPOGFPXBRRX-UHFFFAOYSA-N 0.000 description 1
- 125000006610 n-decyloxy group Chemical group 0.000 description 1
- 125000001298 n-hexoxy group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])O* 0.000 description 1
- RIWRFSMVIUAEBX-UHFFFAOYSA-N n-methyl-1-phenylmethanamine Chemical compound CNCC1=CC=CC=C1 RIWRFSMVIUAEBX-UHFFFAOYSA-N 0.000 description 1
- 125000006609 n-nonyloxy group Chemical group 0.000 description 1
- 125000006608 n-octyloxy group Chemical group 0.000 description 1
- 125000001624 naphthyl group Chemical group 0.000 description 1
- 125000004923 naphthylmethyl group Chemical group C1(=CC=CC2=CC=CC=C12)C* 0.000 description 1
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 125000003261 o-tolyl group Chemical group [H]C1=C([H])C(*)=C(C([H])=C1[H])C([H])([H])[H] 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 125000001037 p-tolyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1*)C([H])([H])[H] 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 150000003014 phosphoric acid esters Chemical class 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 150000003018 phosphorus compounds Chemical class 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 238000013001 point bending Methods 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920000909 polytetrahydrofuran Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 150000004053 quinones Chemical class 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 150000004756 silanes Chemical class 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000001256 steam distillation Methods 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 125000005504 styryl group Chemical group 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- TXDNPSYEJHXKMK-UHFFFAOYSA-N sulfanylsilane Chemical class S[SiH3] TXDNPSYEJHXKMK-UHFFFAOYSA-N 0.000 description 1
- HXJUTPCZVOIRIF-UHFFFAOYSA-N sulfolane Chemical compound O=S1(=O)CCCC1 HXJUTPCZVOIRIF-UHFFFAOYSA-N 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- FAGUFWYHJQFNRV-UHFFFAOYSA-N tetraethylenepentamine Chemical compound NCCNCCNCCNCCN FAGUFWYHJQFNRV-UHFFFAOYSA-N 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- AYEKOFBPNLCAJY-UHFFFAOYSA-O thiamine pyrophosphate Chemical compound CC1=C(CCOP(O)(=O)OP(O)(O)=O)SC=[N+]1CC1=CN=C(C)N=C1N AYEKOFBPNLCAJY-UHFFFAOYSA-O 0.000 description 1
- 238000001721 transfer moulding Methods 0.000 description 1
- GQIUQDDJKHLHTB-UHFFFAOYSA-N trichloro(ethenyl)silane Chemical compound Cl[Si](Cl)(Cl)C=C GQIUQDDJKHLHTB-UHFFFAOYSA-N 0.000 description 1
- JXUKBNICSRJFAP-UHFFFAOYSA-N triethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CCO[Si](OCC)(OCC)CCCOCC1CO1 JXUKBNICSRJFAP-UHFFFAOYSA-N 0.000 description 1
- SRPWOOOHEPICQU-UHFFFAOYSA-N trimellitic anhydride Chemical compound OC(=O)C1=CC=C2C(=O)OC(=O)C2=C1 SRPWOOOHEPICQU-UHFFFAOYSA-N 0.000 description 1
- DQZNLOXENNXVAD-UHFFFAOYSA-N trimethoxy-[2-(7-oxabicyclo[4.1.0]heptan-4-yl)ethyl]silane Chemical compound C1C(CC[Si](OC)(OC)OC)CCC2OC21 DQZNLOXENNXVAD-UHFFFAOYSA-N 0.000 description 1
- BPSIOYPQMFLKFR-UHFFFAOYSA-N trimethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CO[Si](OC)(OC)CCCOCC1CO1 BPSIOYPQMFLKFR-UHFFFAOYSA-N 0.000 description 1
- 238000005292 vacuum distillation Methods 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 239000005050 vinyl trichlorosilane Substances 0.000 description 1
- UKRDPEFKFJNXQM-UHFFFAOYSA-N vinylsilane Chemical class [SiH3]C=C UKRDPEFKFJNXQM-UHFFFAOYSA-N 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 125000005023 xylyl group Chemical group 0.000 description 1
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/02—Polycondensates containing more than one epoxy group per molecule
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/02—Polycondensates containing more than one epoxy group per molecule
- C08G59/04—Polycondensates containing more than one epoxy group per molecule of polyhydroxy compounds with epihalohydrins or precursors thereof
- C08G59/06—Polycondensates containing more than one epoxy group per molecule of polyhydroxy compounds with epihalohydrins or precursors thereof of polyhydric phenols
- C08G59/063—Polycondensates containing more than one epoxy group per molecule of polyhydroxy compounds with epihalohydrins or precursors thereof of polyhydric phenols with epihalohydrins
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/02—Polycondensates containing more than one epoxy group per molecule
- C08G59/10—Polycondensates containing more than one epoxy group per molecule of polyamines with epihalohydrins or precursors thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/20—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the epoxy compounds used
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/20—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the epoxy compounds used
- C08G59/22—Di-epoxy compounds
- C08G59/223—Di-epoxy compounds together with monoepoxy compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/20—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the epoxy compounds used
- C08G59/22—Di-epoxy compounds
- C08G59/24—Di-epoxy compounds carbocyclic
- C08G59/245—Di-epoxy compounds carbocyclic aromatic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/28—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection
- H01L23/29—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection characterised by the material, e.g. carbon
- H01L23/293—Organic, e.g. plastic
Definitions
- the present invention relates to a method for producing an epoxy resin, and more particularly, an industrially advantageous method for producing an epoxy resin, an epoxy resin or an epoxy resin composition obtained by the method for producing the epoxy resin, and a method for curing the epoxy resin composition. It relates to a cured product and electric/electronic parts.
- epoxy resin By curing epoxy resin with various curing agents, it generally becomes a cured product with excellent mechanical properties, heat resistance, electrical properties, etc., so it is used in a wide range of fields such as adhesives, paints, electrical and electronic materials. is used in In particular, in the field of electrical and electronic materials, tetramethylbiphenol-type epoxy resins are frequently used for semiconductor encapsulants because they can provide high-value-added encapsulants.
- Patent Document 1 describes that a tetramethylbiphenol-type epoxy resin was produced by the reaction of 4,4'-bishydroxy-3,3',5,5'-tetramethylbiphenyl and epichlorohydrin.
- semiconductors are increasingly required to have high electrical reliability that can withstand long-term use from the viewpoint of improving the safety of automatic driving technology and extending the life of electronic devices. Due to this semiconductor technology trend, semiconductor materials with less water absorption and higher electrical reliability are desired, and semiconductor encapsulants are expected to have higher electrical reliability in long-term use than before. There is a demand for materials with low water absorption.
- the epoxy resin described in Patent Document 1 is an epoxy resin that is the key to productivity in the process of manufacturing an epoxy resin on an industrial scale and a semiconductor encapsulant that is cured using the epoxy resin. The speed of melt-mixing with other components was not sufficiently satisfactory.
- the cured product obtained using the epoxy resin described in Patent Document 1 may crack in the encapsulating material when it is produced as a semiconductor encapsulating material at high temperatures. It was not sexually satisfying.
- the cured product obtained using the epoxy resin described in Patent Document 1 may cause electrical problems such as wiring corrosion due to water absorption of the sealing material when used as a semiconductor sealing material for a long period of time. However, the electrical reliability was not satisfactory.
- the present invention provides a semiconductor encapsulating material that has high productivity when manufacturing epoxy resins, flows at lower temperatures when manufacturing semiconductors, has high industrial handleability, and has high resistance to molding processes at high temperatures.
- An object of the present invention is to provide an epoxy resin composition, a method for producing the same, a cured product thereof, and electric/electronic parts, which have low water absorption and high electrical reliability.
- the inventors of the present invention have found that when a phenol compound or amine compound as a raw material is reacted with epihalohydrin to produce an epoxy resin, a compound having a specific ether structure is present to obtain an epoxy resin.
- the inventors have found that the epoxy resin obtained can solve the above problems, and have completed the present invention.
- the gist of the present invention resides in the following [1] to [10].
- R 1 represents an aliphatic hydrocarbon group having 2 to 8 carbon atoms.
- X 1 is a divalent hydrocarbon group having 1 to 13 carbon atoms, —O—, —S—, —SO 2 —, —C(CF 3 ) 2 — and —CO—
- R 2 to R 13 are each independently a hydrogen atom, an alkyl group having 1 to 12 carbon atoms, an alkoxy group having 1 to 12 carbon atoms, a carbon It is an aryl group having 6 to 12 carbon atoms, an alkenyl group having 2 to 12 carbon atoms or an alkynyl group having 2 to 12 carbon atoms, and n represents an integer of 0 to 10.
- R 14 is a C 3-8 non-linear aliphatic hydrocarbon group.
- Embodiments of the present invention will be described in detail below.
- the following description is an example of an embodiment of the present invention, and the present invention is not limited to the following description contents as long as it does not exceed the gist thereof.
- the expression " ⁇ " when used, it is used as an expression including the numerical values or physical property values before and after it.
- the epoxy resins of the present embodiment include those containing a repeating structure and those having a monomolecular structure. may be In the industry, a mixture further containing an epoxy resin different from the epoxy resin of the present embodiment is sometimes referred to as an "epoxy resin composition", but is also simply referred to as an "epoxy resin".
- the method for producing an epoxy resin comprises reacting a starting phenol compound or starting amine compound with an epihalohydrin to produce an epoxy resin, wherein a compound represented by the following formula (1) (hereinafter , sometimes referred to as “compound (1)”).
- R 1 represents an aliphatic hydrocarbon group having 2 to 8 carbon atoms.
- the epoxy resin produced by the method for producing an epoxy resin of the present embodiment is an epoxy compound represented by the following formula (3) (hereinafter sometimes referred to as "epoxy compound (3)” or “epoxy resin (3)” ), and an epoxy compound (3) and an epoxy compound represented by the following formula (4) (hereinafter sometimes referred to as “epoxy compound (4)” or “epoxy resin (4)” .) is preferably included.
- R 2 to R 13 , X 1 and n have the same meanings as in formula (2) described below.
- R 2 to R 13 , X 1 and n are each The same applies to the preferred ones of
- the phenol compound is not particularly limited as long as it is a compound having a phenol skeleton, but is preferably represented by the following formula (2).
- X 1 is a divalent linking group, a divalent hydrocarbon group having 1 to 13 carbon atoms, —O—, —S—, —SO 2 —, —C(CF 3 ) 2 is a group or a direct bond selected from the group consisting of — and —CO—, and R 2 to R 13 are each independently a hydrogen atom, an alkyl group having 1 to 12 carbon atoms, or an alkoxy having 1 to 12 carbon atoms. an aryl group having 6 to 12 carbon atoms, an alkenyl group having 2 to 12 carbon atoms or an alkynyl group having 2 to 12 carbon atoms. n represents an integer from 0 to 10;
- X 1 is preferably a direct bond or a divalent hydrocarbon group having 1 to 13 carbon atoms.
- the divalent hydrocarbon group having 1 to 13 carbon atoms preferably includes an aliphatic hydrocarbon group having 1 to 10 carbon atoms, particularly preferably an optionally branched alkylene group having 1 to 10 carbon atoms.
- X 1 is more preferably a direct bond, a methylene group or an isopropylidene group, and most preferably a direct bond.
- the multiple X 1 's may be the same or different.
- R 2 to R 13 each independently represents a hydrogen atom, an alkyl group having 1 to 12 carbon atoms, an alkoxy group having 1 to 12 carbon atoms, an aryl group having 6 to 12 carbon atoms, an alkenyl group having 2 to 12 carbon atoms, Alternatively, it is an alkynyl group having 2 to 12 carbon atoms, and the alkyl group, alkoxy group, aryl group, alkenyl group and alkynyl group may have a substituent.
- alkyl groups include the following. For example, methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, sec-butyl group, tert-butyl group, n-pentyl group, isopentyl group, neopentyl group, tert-pentyl group, cyclopentyl group, n-hexyl group, isohexyl group, cyclohexyl group, n-heptyl group, cycloheptyl group, methylcyclohexyl group, n-octyl group, cyclooctyl group, n-nonyl group, 3,3,5-trimethylcyclohexyl group, n- decyl group, cyclodecyl group, n-undecyl group, n-dodecyl group, cyclododecyl group, benz
- alkoxy groups include the following. For example, methoxy, ethoxy, n-propoxy, isopropoxy, n-butoxy, sec-butoxy, tert-butoxy, n-pentoxy, isopentoxy, neopentoxy, tert-pentoxy, cyclopentyl thoxy group, n-hexyloxy group, isohexyloxy group, cyclohexyloxy group, n-heptoxy group, cycloheptoxy group, methylcyclohexyloxy group, n-octyloxy group, cyclooctyloxy group, n-nonyloxy group, 3,3,5-trimethyl cyclohexyloxy group, n-decyloxy group, cyclodecyloxy group, n-undecyloxy group, n-dodecyloxy group, cyclododecyloxy group, benzyloxy group,
- alkynyl groups include the following. Examples include ethynyl, 1-propynyl, 2-propynyl, 1-butynyl, 2-butynyl, 3-butynyl, 1,3-butandienyl, phenylethynyl, naphthylethynyl and the like.
- Aryl groups include phenyl group, o-tolyl group, m-tolyl group, p-tolyl group, ethylphenyl group, styryl group, xylyl group, n-propylphenyl group, isopropylphenyl group, mesityl group, ethynylphenyl group, A naphthyl group, a vinylnaphthyl group, and the like can be mentioned.
- R 2 to R 13 are preferably each independently a hydrogen atom, an alkyl group having 1 to 12 carbon atoms, or an aryl group having 6 to 12 carbon atoms, more preferably each independently a hydrogen atom or a carbon number 1 to 12 alkyl groups.
- n in formula (2) is an integer of 0 to 10, preferably 0 to 5, more preferably 0 to 3.
- raw material phenol compounds include bisphenol compounds such as bisphenol A, bisphenol F, bisphenol S, bisphenol AD, and bisphenol AF; biphenol compounds such as biphenol and tetramethylbiphenol; dihydroxydiphenyl ether; thiodiphenols; , cresol novolak resin, phenol aralkyl resin, biphenyl aralkyl resin, naphthol aralkyl resin, terpene phenol resin, dicyclopentadiene phenol resin, bisphenol A novolak resin, naphthol novolak resin, brominated bisphenol A, brominated phenol novolak resin, etc.
- bisphenol compounds such as bisphenol A, bisphenol F, bisphenol S, bisphenol AD, and bisphenol AF
- biphenol compounds such as biphenol and tetramethylbiphenol
- dihydroxydiphenyl ether thiodiphenols
- cresol novolak resin cresol novolak resin, phenol aralkyl resin, biphenyl
- Polyhydric phenols polyhydric phenol resins obtained by condensation reaction of various phenols with various aldehydes such as benzaldehyde and crotonaldehyde, polyhydric phenol resins obtained by condensation reaction of xylene resin and phenols and the like, preferably bisphenol compounds or biphenol compounds, more preferably biphenol compounds, and particularly preferably tetramethylbiphenol.
- the starting amine compound is not particularly limited as long as it is a compound having an amine skeleton, but p-aminophenol, m-aminophenol, o-aminophenol, diaminodiphenylmethane, diethylenetriamine, triethylenetetramine, diaminodiphenylsulfone, isophorone Diamine, imidazole, BF3-amine complex, guanidine derivative and the like.
- the substituent R 1 in the formula (1) representing the compound (1) is an aliphatic hydrocarbon group having 2 to 8 carbon atoms.
- R 1 is not particularly limited as long as it is an aliphatic hydrocarbon group having 2 to 8 carbon atoms, and may be linear or non-linear such as a branched structure or a cyclic structure. .
- the aliphatic hydrocarbon group having 2 to 8 carbon atoms of R 1 may have a substituent such as a phenyl group or an alkoxy group.
- a straight-chain alkyl group having 2 to 8 carbon atoms is preferred. Specific examples include ethyl group, n-propyl group, n-butyl group, n-pentyl group, n-hexyl group, n-heptyl group, n-octyl group and the like, preferably having 2 to 4 carbon atoms. It is a straight-chain alkyl group, and specific examples thereof include an ethyl group, an n-propyl group, and an n-butyl group.
- a non-straight chain aliphatic hydrocarbon group having 3 to 8 carbon atoms is preferred.
- the ratio of compound (1) to be used is preferably 0.01 to 19% by mass, more preferably 0.1 to 12% by mass, and even more preferably 1% with respect to the raw material epihalohydrin. .0 to 8.0% by mass. As this usage ratio increases, the resulting epoxy resin tends to have a lower melting point and higher fluidity at low temperatures. In addition, the smaller the usage ratio, the shorter the crystallization time, which tends to improve the productivity.
- the epihalohydrin is not particularly limited, but examples include epichlorohydrin, epibromohydrin, ⁇ -methylepichlorohydrin and the like. Among these, epichlorohydrin is preferable because it is easily available industrially.
- the epihalohydrin is preferably used in an amount of 1 to 10 mol per 1 mol of hydroxyl groups contained in the phenol compound of the raw material.
- a preferable method is to add 9 to 2.0 mol of an alkaline catalyst all at once or gradually while reacting at a temperature of 20 to 120° C. for 0.5 to 10 hours.
- This alkaline catalyst may be solid or an aqueous solution thereof may be used.
- an aqueous solution it is continuously added and water and epihalohydrins are continuously distilled from the reaction mixture under reduced pressure or normal pressure. The reaction mixture may be separated, water is removed, and the epihalohydrins are continuously returned to the reaction mixture.
- the epihalohydrin is preferably used in an amount of 2 to 20 mol per 1 mol of amino groups contained in the amine compound of the raw material.
- a preferred method is a method of reacting at a temperature of 20 to 120° C. for 0.5 to 10 hours while adding 0.0 mol of an alkaline catalyst all at once or gradually.
- This alkaline catalyst may be solid or an aqueous solution thereof may be used.
- an aqueous solution it is continuously added and water and epihalohydrins are continuously distilled from the reaction mixture under reduced pressure or normal pressure. The reaction mixture may be separated, water is removed, and the epihalohydrins are continuously returned to the reaction mixture.
- the reaction temperature is preferably in the range of 20 to 90°C.
- the time is preferably in the range of 0.5 to 10 hours.
- the reaction rate in the synthesis of the epoxy resin can be increased.
- the amount of the organic solvent used is preferably 5 to 70 parts by mass with respect to 100 parts by mass of the epihalohydrin.
- the organic solvent used in the reaction is not particularly limited, but examples include ketones such as acetone and methyl ethyl ketone, alcohols such as methanol, ethanol, 1-propyl alcohol, isopropyl alcohol, 1-butanol, sec-butanol and tert-butanol, cellosolves such as methyl cellosolve and ethyl cellosolve; ethers such as tetrahydrofuran, 1,4-dioxane, 1,3-dioxane and diethoxyethane; and aprotic polar solvents such as acetonitrile, dimethylsulfoxide and dimethylformamide. . These organic solvents may be used alone, or two or more of them may be used in combination to adjust the polarity.
- ketones such as acetone and methyl ethyl ketone
- alcohols such as methanol, ethanol, 1-propyl alcohol, isopropyl alcohol, 1-butano
- This embodiment containing the epoxy compound (3), the epoxy compound (4) and other components at suitable contents described later by re-reacting the epoxy resin produced as described above with an alkali for purification. of epoxy resin composition can be obtained.
- an organic solvent for dissolving the epoxy resin may be used for the reaction between the epoxy resin and the alkali.
- the organic solvent used in the reaction is not particularly limited, it is preferable to use a ketone-based organic solvent from the viewpoint of production efficiency, handleability, workability, and the like.
- An aprotic polar solvent may be used from the viewpoint of lowering the amount of hydrolyzable chlorine.
- ketone-based organic solvents examples include ketone-based solvents such as methyl ethyl ketone, methyl isobutyl ketone, and cyclohexanone. Methyl isobutyl ketone is particularly preferred because of its effects and ease of post-treatment. These may be used individually by 1 type, and may be used in mixture of 2 or more types.
- aprotic polar solvents examples include dimethylsulfoxide, diethylsulfoxide, dimethylsulfone, sulfolane, dimethylformamide, dimethylacetamide, hexamethylphosphoramide, and the like. These may be used individually by 1 type, and may be used in mixture of 2 or more types. Among these aprotic polar solvents, dimethylsulfoxide is preferred because it is readily available and has excellent effects.
- the amount of the organic solvent used is such that the concentration of the epoxy resin in the liquid to be treated with alkali is usually 3 to 70% by mass, preferably 5 to 50% by mass, and more preferably 10 to 50% by mass.
- the amount is 40% by mass.
- alkali solid or solution of alkali metal hydroxide
- alkali metal hydroxides include potassium hydroxide and sodium hydroxide, preferably sodium hydroxide.
- An alkali metal hydroxide dissolved in an organic solvent or water may be used.
- the alkali metal hydroxide is used as a solution dissolved in an aqueous solvent or an organic solvent.
- the amount of the alkali metal hydroxide to be used is preferably 0.1 parts by mass or more and 6.0 parts by mass or less per 100 parts by mass of the epoxy resin in terms of the solid content of the alkali metal hydroxide.
- the reaction temperature is preferably 20-150°C, more preferably 30-90°C.
- the reaction time is preferably 0.1 to 15 hours, more preferably 0.3 to 10 hours. If the reaction temperature is outside the above range, it may not be possible to obtain an epoxy resin composition containing the epoxy compound (3), the epoxy compound (4), and other components with the ratio of each component within the preferred range.
- the epoxy resin obtained by the method for producing an epoxy resin according to the present embodiment described above is preferably the epoxy compound (3) represented by the formula (3).
- the epoxy resin obtained by the method for producing an epoxy resin of the present embodiment preferably contains 70.0 to 99.9% by mass of the epoxy compound (3), and the content of the epoxy compound (3) is more preferably 80%. .0 to 97.0%, more preferably 82.0 to 94.0% by mass.
- R 2 to R 13 , X 1 and n have the same meanings as in formula (2) above. The same applies to each of preferable R 2 to R 13 , X 1 and n.
- epoxy compound (3) examples include bisphenol compounds such as bisphenol A, bisphenol F, bisphenol S, bisphenol AD, and bisphenol AF; biphenol compounds such as biphenol and tetramethylbiphenol; dihydroxydiphenyl ether; Phenol novolak resin, cresol novolak resin, phenol aralkyl resin, biphenyl aralkyl resin, naphthol aralkyl resin, terpene phenol resin, dicyclopentadiene phenol resin, bisphenol A novolak resin, naphthol novolak resin, brominated bisphenol A, brominated phenol novolac resin, etc.
- bisphenol compounds such as bisphenol A, bisphenol F, bisphenol S, bisphenol AD, and bisphenol AF
- biphenol compounds such as biphenol and tetramethylbiphenol
- dihydroxydiphenyl ether Phenol novolak resin, cresol novolak resin, phenol aralkyl resin, biphenyl aralkyl resin, naph
- various polyhydric phenols polyhydric phenol resins obtained by the condensation reaction of various phenols with various aldehydes such as benzaldehyde and crotonaldehyde, and polyhydric phenol resins obtained by the condensation reaction of xylene resin and phenols.
- Epoxy resins obtained by converting the hydroxyl groups of various phenolic resins such as phenolic resins into epoxy groups are preferred, but epoxy resins obtained by converting the hydroxyl groups of bisphenol compounds or biphenol compounds into epoxy groups are preferred.
- An epoxy resin obtained by converting the hydroxyl group of a biphenol compound to an epoxy group is preferred, and an epoxy resin obtained by converting the hydroxyl group of tetramethylbiphenol to an epoxy group is particularly preferred.
- the epoxy resin obtained by the method for producing an epoxy resin of the present embodiment preferably contains an epoxy compound (4) represented by the following formula (4) together with the epoxy compound (3).
- the epoxy resin obtained by the method for producing an epoxy resin of the present embodiment preferably contains 0.1 to 8.0% by mass of the epoxy compound (4), and the content of the epoxy compound (4) is more preferably 0.2 to 5.0% by mass, more preferably 0.4 to 3.0% by mass.
- X 1 , R 2 to R 13 , and n have the same meanings as in formulas (2) and (3) above, and R 1 has the same meaning as in formula (1) above. be. The same applies to each of preferable R 1 to R 13 , X 1 and n.
- the epoxy resin obtained by the method for producing an epoxy resin of the present embodiment further contains components other than the epoxy compound (3) and the epoxy compound (4) (hereinafter simply referred to as "other components"). may contain.
- the content of other components in the epoxy resin obtained by the method for producing an epoxy resin of the present embodiment is preferably 15.0% by mass or less.
- the total of the epoxy compound (3), the epoxy compound (4), and the other components is 100% by mass. .
- Epoxy resin composition (A) is an epoxy compound (3) represented by the formula (3), that is, an epoxy resin (3) of 80.0 to 99.9. 0.1 to 8.0% by mass of an epoxy compound represented by the following formula (5) (hereinafter sometimes referred to as "epoxy compound (5)" or "epoxy resin (5)”) %.
- R 2 to R 13 and n have the same meanings as in formulas (2) and (3) above. Note that R 2 to R 13 , X 1 and n The same applies to each preferred one.
- R 14 is a non-linear aliphatic hydrocarbon group having 3 to 8 carbon atoms.
- R 14 in formula (5) is not particularly limited as long as it is a non-linear aliphatic hydrocarbon group having 3 to 8 carbon atoms, and may be a branched structure or a cyclic structure. Moreover, you may have substituents, such as a phenyl group and an alkoxy group.
- non-linear aliphatic hydrocarbon groups having 3 to 8 carbon atoms for R 14 include isopropyl group, 1-methoxy-2-propyl group, sec-butyl group, tert-butyl group and isopentyl group. , a neopentyl group, a tert-pentyl group, a cyclopentyl group, an isohexyl group, a cyclohexyl group, a cycloheptyl group, a methylcyclohexyl group, a cyclooctyl group, a benzyl group, a methylbenzyl group, etc. More preferably, the branched structure has 3 carbon atoms.
- alkyl groups such as isopropyl, 1-methoxy-2-propyl, sec-butyl, tert-butyl, isopentyl, neopentyl, and tert-pentyl groups.
- the branched chain may contain an oxygen atom by having an alkoxy group as a substituent.
- the content of the epoxy resin (3) in the epoxy resin composition (A) of the present embodiment is 80.0 to 99.9% by mass, preferably 82.0 to 97.0%, more preferably 85.0%. 0 to 94.0% by mass. If the content of the epoxy resin (3) exceeds the above upper limit, the melting point is high, it takes time to develop fluidity, and the productivity when mixed with other components such as a curing agent described later is inferior. On the other hand, if the content of the epoxy resin (3) is less than the above lower limit, the crystallization time during the production of the epoxy resin composition will be long, resulting in poor productivity.
- the content of the epoxy resin (5) in the epoxy resin composition (A) of the present embodiment is 0.1 to 8.0% by mass, preferably 0.2 to 5.0% by mass, more preferably 0 .4 to 3.0% by mass. If the content of the epoxy resin (5) is less than the above lower limit, the melting point becomes high, it takes time to develop fluidity, and the productivity when mixed with other components such as a curing agent to be described later is poor. On the other hand, when the content of the epoxy resin (5) exceeds the above upper limit, the glass transition temperature of the cured product using the epoxy resin composition is lowered.
- the epoxy resin composition (A) of the present embodiment may further contain components other than the epoxy resin (3) and the epoxy resin (5) (hereinafter simply referred to as "other components"). .
- the content of other components in the epoxy resin composition (A) is preferably 15.0% by mass or less.
- the epoxy resin composition (A) of the present embodiment contains other components, the total of the epoxy resin (3), the epoxy resin (5) and the other components is 100% by mass.
- the content of the epoxy resin (5) in the epoxy resin composition (A) can be controlled by adjusting the amount of the compound (6) described below used in the method for producing an epoxy resin of the present embodiment. can. That is, the content of epoxy resin (5) can be increased by using more compound (6), and the content of epoxy resin (5) can be decreased by using less compound (6).
- the content of each component of the epoxy resin composition (A) of the present embodiment can be measured, for example, by high-performance liquid chromatography analysis (hereinafter referred to as LC analysis).
- the epoxy resin composition (A) of the present embodiment is defined as "epoxy resin composition” because it contains a plurality of components such as epoxy resin (3) and epoxy resin (5).
- the "epoxy resin” is obtained as a “composition” consisting of multiple components rather than a single component.
- the epoxy resin composition (A) of the present embodiment is expressed as "epoxy resin” in the industry, and is sometimes sold as “epoxy resin”.
- epoxy compounds (uncured)" are also referred to as “epoxy resins”. Therefore, both the compound represented by the above formula (3) and the compound represented by the above formula (5) are called “epoxy resin”.
- the epoxy resin composition (A) of the present embodiment uses, for example, tetramethylbiphenol as a raw material. is used, the epoxy equivalent is preferably 180 to 193 g/eq. From the viewpoint of further increasing productivity during the production of the epoxy resin composition (A), for example, when tetramethylbiphenol is used as a raw material, the epoxy equivalent of the epoxy resin composition (A) of the present embodiment is 184 to 192 g/eq. is more preferable. By setting the epoxy equivalent to the specific range described above, it is believed that the excellent properties described above can be obtained.
- epoxy equivalent is defined as "mass of epoxy resin containing one equivalent of epoxy group” and can be measured according to JIS K7236.
- the epoxy resin composition (A) of the present embodiment preferably has a hydrolyzable chlorine content (hereinafter sometimes referred to as "amount of hydrolyzable chlorine") of 1000 ppm by mass or less. From the viewpoint of improving electrical properties, the amount of hydrolyzable chlorine in the epoxy resin composition (A) is more preferably 700 ppm by mass or less.
- the melting point of the epoxy resin composition (A) of the present embodiment is preferably 108°C or less. If the melting point is not more than the above value, the epoxy resin composition (B) described below can be mixed at a lower temperature and can be produced under conditions with low environmental load. On the other hand, the melting point of the epoxy resin composition (A) of the present embodiment is preferably 50° C. or higher from the viewpoint of preventing melting at high temperatures during transportation.
- the crystallization time of the epoxy resin composition (A) of the present embodiment is preferably 1500 seconds or less, more preferably 1000 seconds or less. If the crystallization time is equal to or less than the above value, solidification can be achieved in a short time in the manufacturing process of the epoxy resin composition (B), resulting in excellent productivity. On the other hand, the crystallization time of the epoxy resin composition (A) of the present embodiment is preferably 60 seconds or more from the viewpoint of preventing sticking due to crystallization at the extraction port during manufacture of the epoxy resin.
- the method for producing the epoxy resin composition (A) of the present embodiment is not particularly limited, but according to the method for producing the epoxy resin of the first embodiment, the raw material phenol compound and epihalohydrin are reacted to produce an epoxy resin.
- a compound represented by the following formula (6) instead of compound (1) hereinafter sometimes referred to as "compound (6)”
- it can be produced in the same manner as the method for producing the epoxy resin of the first embodiment except that the epoxy resin (5) is produced instead of the epoxy compound (4).
- R 14 has the same meaning as in the above formula (5). The same applies to preferred R 14. )
- Epoxy resin composition (B) contains at least the epoxy resin composition (A) of the second embodiment described above and a curing agent.
- the epoxy resin composition (B) of the present embodiment may optionally contain an epoxy resin other than the epoxy resin contained in the epoxy resin composition (A) of the second embodiment (hereinafter simply referred to as "other epoxy resin”), a curing accelerator, an inorganic filler, a coupling agent, and the like can be appropriately blended.
- the curing agent refers to a substance that contributes to cross-linking reaction and/or chain extension reaction between epoxy groups of epoxy resin.
- a curing agent even if it is usually called a "curing accelerator", it is regarded as a curing agent as long as it contributes to the cross-linking reaction and/or chain extension reaction between epoxy groups of the epoxy resin.
- the content of the curing agent is preferably 0.1 to 1000 parts by mass, more preferably 500 parts by mass based on 100 parts by mass of the total epoxy resin component as a solid content. It is not more than 300 parts by mass, and more preferably not more than 300 parts by mass.
- solid content refers to components excluding solvent, and includes not only solid epoxy resins but also semi-solid and viscous liquid substances.
- Total epoxy resin component corresponds to the amount of epoxy resin contained in the epoxy resin composition (B) of the present embodiment, and the epoxy resin composition (B) of the present embodiment is the epoxy resin composition (A).
- epoxy resin composition (B) of the present embodiment contains the epoxy resin composition (A) and another epoxy resin, it corresponds to the sum of the epoxy resin in the epoxy resin composition (A) and the other epoxy resin.
- any one generally known as an epoxy resin curing agent can be used.
- phenol-based curing agents such as aliphatic amines, polyether amines, alicyclic amines, and aromatic amines
- acid anhydride-based curing agents such as aliphatic amines, polyether amines, alicyclic amines, and aromatic amines
- acid anhydride-based curing agents such as aliphatic amines, polyether amines, alicyclic amines, and aromatic amines
- acid anhydride-based curing agents such as aliphatic amines, polyether amines, alicyclic amines, and aromatic amines
- acid anhydride-based curing agents such as aliphatic amines, polyether amines, alicyclic amines, and aromatic amines
- acid anhydride-based curing agents such as aliphatic amines, polyether amines, alicyclic amines, and aromatic amines
- the epoxy resin composition (B) of the present embodiment can obtain excellent heat resistance, stress resistance, water absorption resistance, flame retardancy, etc. by including the phenol-based curing agent.
- the curing agent preferably contains a phenol-based curing agent. From the viewpoint of heat resistance, etc., it is preferable to contain an acid anhydride-based curing agent and an amide-based curing agent. It is also preferable to use imidazoles from the viewpoint of sufficiently advancing the curing reaction and improving the heat resistance.
- the curing agent may be used singly or in combination of two or more. When two or more curing agents are used in combination, they may be mixed in advance to prepare a mixed curing agent before use, or each of the curing agents may be mixed when mixing the components of the epoxy resin composition (B). The ingredients may be added separately and mixed together.
- phenol-based curing agents include bisphenol A, bisphenol F, bisphenol S, bisphenol AD, hydroquinone, resorcinol, methylresorcinol, biphenol, tetramethylbiphenol, dihydroxynaphthalene, dihydroxydiphenyl ether, thiodiphenols, phenol novolak resin, Cresol novolak resin, phenol aralkyl resin, biphenyl aralkyl resin, naphthol aralkyl resin, terpene phenol resin, dicyclopentadiene phenol resin, bisphenol A novolak resin, trisphenolmethane type resin, naphthol novolak resin, brominated bisphenol A, brominated phenol novolak resin
- polyhydric phenols such as resins, polyhydric phenol resins obtained by condensation reaction of various phenols with various aldehydes such as benzaldehyde, hydroxybenzaldehyde,
- the phenol-based curing agent may be used alone or in any combination and blending ratio of two or more.
- phenol novolak resins for example, compounds represented by the following formula (7)
- phenol aralkyl resins for example, the following formula (8)
- compound represented by biphenyl aralkyl resin
- naphthol novolac resin e.g., compound represented by the following formula (10)
- naphthol aralkyl resin e.g., the following formula (11 )
- a trisphenolmethane-type resin e.g., a compound represented by the following formula (12)
- a phenol-benzaldehyde-xylylene dimethoxide polycondensate e.g., a compound represented by the following formula (13)
- phenol-benzaldehyde-xylylene dihalide polycondensate for example, a compound represented by the following formula (13)
- phenol novolak resins e.g. compounds represented by the following formula (7)
- phenol aralkyl resins e.g. compounds represented by the following formula (8)
- biphenyl aralkyl resins e.g. compounds represented by the following formula (9)
- a phenol-benzaldehyde-xylylenedimethoxide polycondensate for example, a compound represented by the following formula (13)
- a phenol-benzaldehyde-xylylenedihalide polycondensate for example, a compound represented by the following formula (13)
- phenol-benzaldehyde-4,4'-dimethoxidebiphenyl polycondensate for example, a compound represented by the following formula (14)
- phenol-benzaldehyde-4,4'-dihalidebiphenyl polycondensate for example, the following formula (14) is preferred.
- the amount of the phenol-based curing agent is preferably 0.1 to 1000 parts by mass, more preferably 500 parts by mass or less, and still more preferably 100 parts by mass of all epoxy resin components in the epoxy resin composition (B). is 300 parts by mass or less, particularly preferably 100 parts by mass or less.
- amine curing agents include aliphatic amines, polyetheramines, alicyclic amines, aromatic amines and the like.
- polyetheramines examples include triethylene glycol diamine, tetraethylene glycol diamine, diethylene glycol bis(propylamine), polyoxypropylene diamine, and polyoxypropylene triamines.
- alicyclic amines examples include isophoronediamine, methacenediamine, N-aminoethylpiperazine, bis(4-amino-3-methyldicyclohexyl)methane, bis(aminomethyl)cyclohexane, 3,9-bis(3-amino Propyl)-2,4,8,10-tetraoxaspiro(5,5)undecane, norbornenediamine and the like are exemplified.
- Aromatic amines include tetrachloro-p-xylylenediamine, m-xylylenediamine, p-xylylenediamine, m-phenylenediamine, o-phenylenediamine, p-phenylenediamine, 2,4-diaminoanisole, 2,4 -toluenediamine, 2,4-diaminodiphenylmethane, 4,4'-diaminodiphenylmethane, 4,4'-diamino-1,2-diphenylethane, 2,4-diaminodiphenylsulfone, 4,4'-diaminodiphenylsulfone, m-aminophenol, m-aminobenzylamine, benzyldimethylamine, 2-(dimethylaminomethyl)phenol, triethanolamine, methylbenzylamine, ⁇ -(m-aminophenyl)ethylamine
- the amine-based curing agent should be used so that the equivalent ratio of the functional groups in the curing agent to the epoxy groups in all the epoxy resin components contained in the epoxy resin composition (B) is in the range of 0.8 to 1.5. is preferred. Within this range, unreacted epoxy groups and functional groups of the curing agent are less likely to remain, which is preferable.
- Tertiary amines include 1,8-diazabicyclo(5,4,0)undecene-7, triethylenediamine, benzyldimethylamine, triethanolamine, dimethylaminoethanol, tris(dimethylaminomethyl)phenol and the like. .
- the tertiary amine may be used alone or in combination of two or more in any combination and blending ratio.
- Acid anhydride-based curing agents include acid anhydrides, modified acid anhydrides, and the like.
- acid anhydrides examples include phthalic anhydride, trimellitic anhydride, pyromellitic anhydride, benzophenonetetracarboxylic anhydride, dodecenylsuccinic anhydride, polyadipic anhydride, polyazelaic anhydride, and polysebacic acid.
- Anhydride poly(ethyloctadecanedioic anhydride), poly(phenylhexadecanedioic anhydride), tetrahydrophthalic anhydride, methyltetrahydrophthalic anhydride, methylhexahydrophthalic anhydride, hexahydrophthalic anhydride , methylhimic acid anhydride, trialkyltetrahydrophthalic anhydride, methylcyclohexene dicarboxylic acid anhydride, methylcyclohexene tetracarboxylic acid anhydride, ethylene glycol bistrimellitate dianhydride, het acid anhydride, nadic acid anhydride, methyl nadic anhydride, 5-(2,5-dioxotetrahydro-3-furanyl)-3-methyl-3-cyclohexane-1,2-dicarboxylic anhydride, 3,4-dicarboxy-1,2, 3,4-tetra
- Modified acid anhydrides include, for example, those obtained by modifying the above-mentioned acid anhydrides with glycol.
- glycols that can be used for modification include alkylene glycols such as ethylene glycol, propylene glycol and neopentyl glycol, and polyether glycols such as polyethylene glycol, polypropylene glycol and polytetramethylene ether glycol. mentioned.
- polyether glycols such as polyethylene glycol, polypropylene glycol and polytetramethylene ether glycol. mentioned.
- two or more of these glycols and/or copolymerized polyether glycols of polyether glycols can also be used.
- the modified acid anhydride it is preferable to modify with 0.4 mol or less of glycol per 1 mol of the acid anhydride.
- the amount of modification is equal to or less than the above upper limit, the viscosity of the epoxy resin composition does not become too high, and workability tends to be good. In addition, the speed of the curing reaction with the epoxy resin tends to be favorable.
- the acid anhydride-based curing agent may be used alone or in combination of two or more in any combination and amount.
- the equivalent ratio of the functional groups in the curing agent to the epoxy groups in all the epoxy resin components in the epoxy resin composition (B) is in the range of 0.8 to 1.5. is preferably used for Within this range, unreacted epoxy groups and functional groups of the curing agent are less likely to remain, which is preferable.
- amide curing agents include dicyandiamide and derivatives thereof, and polyamide resins.
- the amide-based curing agent may be used alone, or two or more may be used in any combination and ratio.
- the amide-based curing agent When an amide-based curing agent is used, the amide-based curing agent should be used in an amount of 0.1 to 20% by mass based on the total of all epoxy resin components in the epoxy resin composition (B) and the amide-based curing agent. is preferred.
- imidazoles examples include 2-phenylimidazole, 2-ethyl-4(5)-methylimidazole, 2-phenyl-4-methylimidazole, 1-benzyl-2-methylimidazole, 1-benzyl-2-phenylimidazole, 1 -Cyanoethyl-2-undecylimidazole, 1-cyano-2-phenylimidazole, 1-cyanoethyl-2-undecylimidazole trimellitate, 1-cyanoethyl-2-phenylimidazolium trimellitate, 2,4-diamino- 6-[2′-methylimidazolyl-(1′)]-ethyl-s-triazine, 2,4-diamino-6-[2′-ethyl-4′-methylimidazolyl-(1′)]-ethyl-s -triazine, 2,4-diamino-6-[2′-methylimidazolyl-(
- the imidazoles may be used alone, or two or more may be mixed in any combination and ratio.
- imidazoles When imidazoles are used, it is preferable to use imidazoles in an amount of 0.1 to 20% by mass based on the total of all epoxy resin components and imidazoles in the epoxy resin composition (B).
- ⁇ Other curing agents can be used in the epoxy resin composition (B) of the present embodiment in addition to the curing agents described above.
- Other curing agents are not particularly limited, and all those generally known as curing agents for epoxy resins can be used.
- the other curing agents may be used alone or in combination of two or more.
- the epoxy resin composition (B) of the present embodiment can further contain other epoxy resins in addition to the epoxy resin composition (A). By including other epoxy resins, the heat resistance, stress resistance, water absorption resistance, flame retardancy, etc. of the epoxy resin composition (B) of the present invention can be improved.
- epoxy resins that can be used in the epoxy resin composition (B) of the present embodiment are epoxy resins other than the epoxy resins (mainly epoxy resin (3) and epoxy resin (5)) contained in the epoxy resin composition (A).
- epoxy resins include bisphenol A-type epoxy resin, trisphenolmethane-type epoxy resin, anthracene-type epoxy resin, phenol-modified xylene resin-type epoxy resin, bisphenolcyclododecyl-type epoxy resin, bisphenoldiisopropylideneresorcinol-type epoxy resin, and bisphenol F-type epoxy resin.
- Epoxy resin bisphenol AD-type epoxy resin, hydroquinone-type epoxy resin, methylhydroquinone-type epoxy resin, dibutylhydroquinone-type epoxy resin, resorcinol-type epoxy resin, methylresorcinol-type epoxy resin, biphenol-type epoxy resin, in epoxy resin composition (A) Epoxy resins (1) and (2) other than tetramethylbiphenol type epoxy resin, tetramethylbisphenol F type epoxy resin, dihydroxydiphenyl ether type epoxy resin, epoxy resin derived from thiodiphenols, dihydroxynaphthalene type epoxy resin, Dihydroxyanthracene type epoxy resin, dihydroxydihydroanthracene type epoxy resin, dicyclopentadiene type epoxy resin, epoxy resin derived from dihydroxystilbenes, phenol novolac type epoxy resin, cresol novolac type epoxy resin, bisphenol A novolac type epoxy resin, naphthol Novolac type epoxy resin, phenol aralkyl type epoxy resin, naphthol
- epoxy resins bisphenol A type epoxy resins, epoxy resins in the epoxy resin composition (A) ( 3) and (5) other than tetramethylbiphenol-type epoxy resin, 4,4′-biphenol-type epoxy resin, biphenylaralkyl-type epoxy resin, phenol aralkyl-type epoxy resin, dihydroxyanthracene-type epoxy resin, dicyclopentadiene-type epoxy resin, Orthocresol novolac type epoxy resins and trisphenolmethane type epoxy resins are particularly preferred.
- the content thereof is preferably 0.01 to 60 mass parts per 100 mass parts of the total epoxy resin components in the composition. parts, more preferably 40 parts by mass or less, still more preferably 30 parts by mass or less, particularly preferably 20 parts by mass or less, and more preferably 1 part by mass or more.
- the epoxy resin composition (B) of the present embodiment preferably contains a curing accelerator.
- a curing accelerator By including a curing accelerator, it is possible to shorten the curing time and lower the curing temperature, and to easily obtain a desired cured product.
- Phosphorus compounds that can be used as curing accelerators include triphenylphosphine, diphenyl(p-tolyl)phosphine, tris(alkylphenyl)phosphine, tris(alkoxyphenyl)phosphine, tris(alkyl/alkoxyphenyl)phosphine, tris( dialkylphenyl)phosphine, tris(trialkylphenyl)phosphine, tris(tetraalkylphenyl)phosphine, tris(dialkoxyphenyl)phosphine, tris(trialkoxyphenyl)phosphine, tris(tetraalkoxyphenyl)phosphine, trialkylphosphine, dialkyl Organic phosphines such as arylphosphines and alkyldiarylphosphines, complexes of these organic phosphines and organic borons, these organic phosphines
- organic phosphines and phosphonium salts are preferred, and organic phosphines are most preferred.
- organic phosphines are most preferred.
- only one type may be used, or two or more types may be mixed and used in any combination and ratio.
- the curing accelerator is preferably used in an amount of 0.1 to 20 parts by weight, more preferably 0.5 parts by weight or more, based on 100 parts by weight of all epoxy resin components in the epoxy resin composition (B). , more preferably 1 part by mass or more, more preferably 15 parts by mass or less, and still more preferably 10 parts by mass or less.
- the content of the curing accelerator is at least the above lower limit, a good curing acceleration effect can be obtained.
- the content of the curing accelerator is equal to or less than the above upper limit, desired cured physical properties can be easily obtained, which is preferable.
- An inorganic filler can be added to the epoxy resin composition (B) of the present embodiment.
- inorganic fillers include fused silica, crystalline silica, glass powder, alumina, calcium carbonate, calcium sulfate, talc, and boron nitride. These may be used alone, or two or more of them may be used in any combination and blending ratio. Among these, crushed and/or spherical fused and/or crystalline silica powder fillers are preferred when used for semiconductor encapsulation applications.
- the thermal expansion coefficient of the semiconductor encapsulating material can be brought close to that of the internal silicon chip or lead frame.
- the amount of water absorbed by the semiconductor sealing material as a whole can be reduced, the solder crack resistance can be improved.
- the average particle size of the inorganic filler is usually 1-50 ⁇ m, preferably 1.5-40 ⁇ m, more preferably 2-30 ⁇ m. When the average particle size is at least the above lower limit, the melt viscosity does not become too high and the fluidity is less likely to decrease, which is preferable. If the average particle size of the inorganic filler is equal to or less than the above upper limit, the narrow gaps in the mold are less likely to be clogged with the filler during molding, and the filling properties of the material are likely to be improved, which is preferable.
- the inorganic filler is preferably blended in the range of 60 to 95% by mass of the entire epoxy resin composition.
- a releasing agent can be added to the epoxy resin composition (B) of the present embodiment.
- release agents include natural waxes such as carnauba wax, synthetic waxes such as polyethylene wax, higher fatty acids such as stearic acid and zinc stearate and their metal salts, and hydrocarbon release agents such as paraffin. can be done. These may be used alone, or two or more of them may be used in any combination and blending ratio.
- the amount of the release agent is preferably 0.1 to 5.0 parts by mass, more preferably 0.5 to 3.0 parts by mass.
- the amount of the release agent is within the above range, it is possible to maintain the curing properties of the epoxy resin composition (B) and exhibit good releasability, which is preferable.
- a coupling agent is preferably added to the epoxy resin composition (B) of the present embodiment.
- a coupling agent is preferably used in combination with an inorganic filler. By blending the coupling agent, the adhesiveness between the matrix epoxy resin and the inorganic filler can be improved.
- Examples of coupling agents include silane coupling agents and titanate coupling agents.
- silane coupling agents include epoxysilanes such as ⁇ -glycidoxypropyltrimethoxysilane, ⁇ -glycidoxypropyltriethoxysilane, ⁇ -(3,4-epoxycyclohexyl)ethyltrimethoxysilane, ⁇ - Aminopropyltriethoxysilane, N- ⁇ (aminoethyl) ⁇ -aminopropyltrimethoxysilane, N- ⁇ (aminoethyl) ⁇ -aminopropylmethyldimethoxysilane, ⁇ -aminopropyltrimethoxysilane, ⁇ -ureidopropyltriethoxy aminosilanes such as silane, mercaptosilanes such as 3-mercaptopropyltrimethoxysilane, p-styryltrimethoxysilane, vinyltrichlorosilane, vinyltris( ⁇ -methoxy
- titanate coupling agents include isopropyl triisostearoyl titanate, isopropyl tri(N-aminoethyl/aminoethyl) titanate, diisopropyl bis(dioctylphosphate) titanate, tetraisopropyl bis(dioctylphosphite) titanate, tetraoctyl bis ( ditridecylphosphite) titanate, tetra(2,2-diallyloxymethyl-1-butyl)bis(ditridecyl)phosphite titanate, bis(dioctylpyrophosphate)oxyacetate titanate, bis(dioctylpyrophosphate)ethylene titanate and the like. be done.
- any one of these coupling agents may be used alone, or two or more may be used in any combination and ratio.
- the compounding amount is preferably 0.1 to 3.0 parts by mass with respect to 100 parts by mass of the total epoxy resin component. If the amount of the coupling agent is at least the above lower limit, the effect of improving the adhesion between the matrix epoxy resin and the inorganic filler tends to be enhanced by adding the coupling agent. If the amount of the coupling agent is less than the above upper limit, the coupling agent is less likely to bleed out from the resulting cured product, which is preferable.
- epoxy resin composition (B) of the present embodiment components other than those described above (in the present invention, may be referred to as "other compounding components" can be blended.
- Other compounding components include, for example, flame retardants, plasticizers, reactive diluents, pigments, and the like. These can be appropriately blended as needed.
- the epoxy resin composition (B) of the present embodiment may contain components other than the components listed above.
- the method for curing the epoxy resin composition (B) of this embodiment is not particularly limited.
- a cured product can be obtained by a thermosetting reaction by heating.
- the thermosetting reaction it is preferable to appropriately select the curing temperature depending on the type of curing agent used.
- the curing temperature is usually 130-300°C.
- the reaction time is preferably 1 to 20 hours, more preferably 2 to 18 hours, still more preferably 3 to 15 hours.
- the reaction time is at least the above lower limit, the curing reaction tends to proceed sufficiently, which is preferable.
- the reaction time is equal to or less than the above upper limit, deterioration due to heating and energy loss during heating are easily reduced, which is preferable.
- a cured product using the curable resin composition (B) of the present embodiment has low water absorption and is excellent in heat crack resistance during molding and electrical reliability in long-term use as an electronic material.
- the curable resin composition (B) of the present embodiment and the cured product thereof can be effectively used in any application as long as these physical properties are required.
- coating fields such as optical materials, automotive coatings such as automotive electrodeposition coatings, heavy anticorrosion coatings for ships and bridges, and coatings for the inner surface of beverage cans; composite materials, laminates, semiconductor sealing materials, liquid insulation Electrical and electronic fields such as sealing materials, insulating powder coatings, coil impregnation; seismic reinforcement of bridges, concrete reinforcement, building floor materials, linings of water supply facilities, drainage and permeable pavement, adhesives for structures, vehicles and aircraft It can be suitably used for any application in the fields of civil engineering, construction, adhesives, and the like. Among these, it is particularly useful for electrical and electronic parts.
- the epoxy resin composition (B) of the present embodiment may be used after curing for the above applications, or may be cured during the manufacturing process for the above applications.
- Laminate As a method for producing a laminate using the curable resin composition (B) of the present embodiment, a prepreg obtained by impregnating a fibrous base material with the resin varnish made of the curable resin composition (B) of the present embodiment. A method of producing a laminate by heating and pressurizing a laminate containing and curing it.
- a fibrous base material is impregnated with a resin varnish, dried, and the solvent is removed to form a prepreg.
- This prepreg is laminated with another base material to be used as necessary to form a laminate, and the laminate is cured by heating and pressurization to obtain a laminate.
- the number of prepreg layers in the laminate may be one, or two or more.
- other base material than prepreg may be laminated.
- Other substrates include, for example, metal foils such as copper foils.
- fibers constituting the fibrous base material include inorganic fibers such as glass fiber, carbon fiber, ceramic fiber and stainless steel fiber; natural fibers such as cotton, hemp and paper; synthetic organic fibers such as polyester resin and polyamide resin. mentioned. Any one of these fibers may be used alone, or two or more thereof may be used in combination.
- the shape of the fibrous base material is not particularly limited, and examples include short fibers, yarns, mats, and sheets.
- the amount of the resin varnish with which the fibrous base material is impregnated is not particularly limited, and for example, the solid content of the resin varnish to be impregnated is about 30 to 50% by mass with respect to the fibrous base material (100% by mass). make it
- the heating temperature for heating and pressurizing the laminate is preferably the curing temperature described above.
- the pressurization conditions are preferably 2 to 20 kN/m 2 .
- a laminate manufactured in this manner includes a fiber-reinforced resin layer containing a fibrous base material and a cured resin varnish.
- the number of fiber-reinforced resin layers included in the laminate may be one or two or more.
- the laminate may have a metal foil layer, such as a copper foil.
- the shape of the sealing material to which the curable resin composition of the present embodiment is applied is not particularly limited. A shape similar to the shape adopted in the above can be adopted. Examples of methods for forming a sealing material using the curable resin composition (B) of the present embodiment include a method for sealing a semiconductor using a transfer molding method, a compression molding method, or the like.
- Epoxy resin composition ⁇ Epoxy equivalent> It is defined as "mass of epoxy resin containing one equivalent of epoxy group” and measured according to JIS K7236.
- ⁇ Melting point> It was measured using a differential scanning calorimeter (manufactured). The temperature at the top of the exothermic peak when the temperature was raised at 10°C/min for 5 mg of the sample was adopted as the melting point.
- Measurement mode 3-point bending mode Measurement temperature range: 30°C to 280°C Heating rate: 5°C/min Temperature drop rate: 5°C/min * The temperature at the peak top of tan ⁇ was defined as Tg (tan ⁇ ).
- Epoxy Resin Composition (A) [Production and Evaluation of Epoxy Resin (Epoxy Resin Composition (A))]
- Example 1 A 5-liter four-necked flask equipped with a thermometer, a stirrer, and a condenser was loaded with phenol (2-1) as a raw material: 200 g of tetramethylbiphenol (Mitsubishi Chemical Co., Ltd.), 1071 g of epichlorohydrin, compound (1-1)5. 4 g of isopropyl alcohol, 417 g of isopropyl alcohol, and 150 g of water were charged, heated to 40° C. and dissolved uniformly, and then 159 g of a 48.5 mass % sodium hydroxide aqueous solution was added dropwise over 90 minutes.
- the temperature was raised from 40° C. to 65° C. over 90 minutes. Thereafter, the reaction solution was kept at 65°C for 30 minutes to complete the reaction, transferred to a 5-L separating funnel, added with 300 g of hot water at 65°C, cooled to 65°C, and allowed to stand for 1 hour. After standing, the water layer was extracted from the separated oil layer and water layer, and by-product salts and excess sodium hydroxide were removed. After that, epichlorohydrin was completely removed under reduced pressure at 150°C.
- Example 2 An epoxy resin composition of Example 2 was obtained in the same manner as in Example 1, except that the amount of compound (1-1) charged was changed to 10.7 g. Calculation of content (%) of resins (3-1), (4-1), and (5-1), measurement of hydrolyzable chlorine content (mass ppm), melting point (°C), crystallization speed (sec) did Table 1 shows the results.
- Example 3 An epoxy resin composition of Example 3 was obtained in the same manner as in Example 1, except that the amount of compound (1-1) charged was changed to 21.4 g. Calculation of content (%) of resins (3-1), (4-1), and (5-1), measurement of hydrolyzable chlorine content (mass ppm), melting point (°C), crystallization speed (sec) did Table 1 shows the results.
- Example 4 An epoxy resin composition of Example 4 was obtained in the same manner as in Example 1, except that the amount of compound (1-1) charged was changed to 36.4 g. Calculation of content (%) of resins (3-1), (4-1), and (5-1), measurement of hydrolyzable chlorine content (mass ppm), melting point (°C), crystallization speed (sec) did Table 1 shows the results.
- Example 5 An epoxy resin composition of Example 5 was obtained in the same manner as in Example 1, except that the amount of compound (1-1) charged was changed to 53.5 g. Calculation of content (%) of resins (3-1), (4-1), and (5-1), measurement of hydrolyzable chlorine content (mass ppm), melting point (°C), crystallization speed (sec) did Table 1 shows the results.
- Example 7 Example 1 was carried out in the same manner except that the amount of epichlorohydrin charged was changed to 765 g, the amount of compound (1-1) charged was changed to 15.3 g, the amount of isopropyl alcohol charged was changed to 297 g, and the amount of water was changed to 0 g.
- the epoxy resin composition of Example 7 was obtained, and the epoxy equivalent (g/eq) and the contents of the epoxy resins (3-1), (4-1), and (5-1) were measured by the method described below. %), the amount of hydrolyzable chlorine (mass ppm), the melting point (°C), and the crystallization rate (seconds) were measured. Table 1 shows the results.
- Comparative Example 1 An epoxy resin composition of Comparative Example 1 was obtained in the same manner as in Example 1, except that the compound (1-1) was not used. ), (4-1), and (5-1) contents (%) were calculated, and hydrolyzable chlorine content (mass ppm), melting point (° C.), and crystallization rate (sec) were measured. Table 1 shows the results.
- Comparative Example 2 An epoxy resin composition of Comparative Example 2 was obtained in the same manner as in Example 7, except that compound (1-1) was not used. ), (4-1), and (5-1) contents (%) were calculated, and hydrolyzable chlorine content (mass ppm), melting point (° C.), and crystallization rate (sec) were measured. Table 1 shows the results.
- the content of epoxy resin (4) or (5) in the epoxy resin composition can be controlled by the amount of compound (1) (compound (6)) relative to epichlorohydrin during the reaction. I found out.
- the content of compound (1) (compound (6)) during the reaction it is possible to obtain an epoxy resin having the property of flowing at low temperatures.
- the cured product has a low storage modulus and a low water absorption rate. It has low properties.
- the epoxy resin composition containing the epoxy resin (4) or (5) in a predetermined ratio has a high production efficiency in the production of the epoxy resin composition, has a low environmental load in the production of semiconductors, and is heat resistant and durable. And from the viewpoint of mechanical properties and water absorption, it can be seen that it can be a raw material for electronic materials with high reliability.
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Abstract
Description
(1)半導体封止材の製造プロセスの合理化による低コスト化
原料となるエポキシ樹脂の品質並びにその製造プロセスの生産性向上だけでなく、エポキシ樹脂と硬化剤を混合して半導体封止材のような硬化物を得る際の硬化物そのものの品質や硬化プロセスの合理化が求められている。
(2)高温環境下における半導体製造への適合化
半導体封止材の原料として用いるエポキシ樹脂についても、硬化剤と混合して硬化させて得られる硬化物が、高温環境下での製造を想定した耐熱耐久性に優れることが必要とされている。
(3)半導体封止材の長期的使用における高信頼化
半導体封止材の原料として用いるエポキシ樹脂についても、硬化剤と混合して硬化させて得られる硬化物が、長期間の使用を想定とした電気的信頼性に優れることが必要とされている。
また、半導体には、自動運転技術の安全性向上や電子デバイスの高寿命化の観点から、長期的使用に耐えられる高い電気的信頼性がますます求められている。この半導体の技術トレンドより、より吸水が少なく電気的信頼性の高い半導体材料が希求され、半導体封止材にあっては、従来よりも、長期的な使用において電気的な高信頼性を見込める、低吸水の材料が求められている。
また、特許文献1に記載のエポキシ樹脂を用いて得られる硬化物は、半導体封止材として高温下で製造する際に、封止材にクラックが発生することがあり、高温下での耐熱耐久性を満足し得るものではなかった。
また、特許文献1に記載のエポキシ樹脂を用いて得られる硬化物は、半導体封止材として長期間で使用した際に、封止材の吸水によって配線腐食などの電気的な不具合を生じることがあり、電気的信頼性を満足し得るものではなかった。
R14は炭素数3~8の非直鎖型の脂肪族炭化水素基である。)
また、本発明のエポキシ樹脂の製造方法で得られるエポキシ樹脂及び/又は本発明のエポキシ樹脂組成物を用いた硬化物は、吸水が少なく含有塩素量が少ないため、長期的な電気的な信頼性に優れる上に、吸水が少なく、半導体製造時の高温環境において耐熱耐久性に優れ、弾性率が低く温度変化による応力を緩和でき、半導体封止材料等に好適に用いることができる。
本明細書において「~」という表現を用いる場合、その前後の数値又は物性値を含む表現として用いるものとする。
なお、本実施形態のエポキシ樹脂は、繰り返し構造を含むものと単分子構造のものとがあるが、当業界ではいずれのエポキシ化合物も「エポキシ樹脂」や「エポキシ樹脂組成物」と表現され、販売されることがある。また、当業界では、本実施形態のエポキシ樹脂と異なるエポキシ樹脂を更に含む混合物を「エポキシ樹脂組成物」と表現することもあるが、単に「エポキシ樹脂」と呼称することもある。
本発明の第一の実施形態であるエポキシ樹脂の製造方法は、原料フェノール化合物又は原料アミン化合物とエピハロヒドリンとを反応させてエポキシ樹脂を製造するに当たり、下記式(1)で表される化合物(以下、「化合物(1)」と称す場合がある。)の存在下に反応させることを特徴とする。
なお、式(2)中にX1が複数存在する場合、複数のX1は、互いに同一であっても異なっていてもよい。
例えば、メチル基、エチル基、n-プロピル基、イソプロピル基、n-ブチル基、sec-ブチル基、tert-ブチル基、n-ペンチル基、イソペンチル基、ネオペンチル基、tert-ペンチル基、シクロペンチル基、n-ヘキシル基、イソヘキシル基、シクロヘキシル基、n-ヘプチル基、シクロヘプチル基、メチルシクロヘキシル基、n-オクチル基、シクロオクチル基、n-ノニル基、3,3,5-トリメチルシクロヘキシル基、n-デシル基、シクロデシル基、n-ウンデシル基、n-ドデシル基、シクロドデシル基、ベンジル基、メチルベンジル基、ジメチルベンジル基、トリメチルベンジル基、ナフチルメチル基、フェネチル基、2-フェニルイソプロピル基等である。
例えば、メトキシ基、エトキシ基、n-プロポキシ基、イソプロポキシ基、n-ブトキシ基、sec-ブトキシ基、tert-ブトキシ基、n-ペントキシ基、イソペントキシ基、ネオペントキシ基、tert-ペントキシ基、シクロペントキシ基、n-ヘキシロキシ基、イソヘキシロキシ基、シクロヘキシロキシ基、n-ヘプトキシ基、シクロヘプトキシ基、メチルシクロヘキシロキシ基、n-オクチロキシ基、シクロオクチロキシ基、n-ノニロキシ基、3,3,5-トリメチルシクロヘキシロキシ基、n-デシロキシ基、シクロデシロキシ基、n-ウンデシロキシ基、n-ドデシロキシ基、シクロドデシロキシ基、ベンジロキシ基、メチルベンジロキシ基、ジメチルベンジロキシ基、トリメチルベンジロキシ基、ナフチルメトキシ基、フェネチロキシ基、2-フェニルイソプロポキシ基等である。
例えば、ビニル基、1-プロペニル基、2-プロペニル基、1-メチルビニル基、1-ブテニル基、2-ブテニル基、3-ブテニル基、1,3-ブタジエニル基、シクロヘキセニル基、シクロヘキサジエニル基、シンナミル基、ナフチルビニル基等である。
例えば、エチニル基、1-プロピニル基、2-プロピニル基、1-ブチニル基、2-ブチニル基、3-ブチニル基、1,3-ブタンジエニル基、フェニルエチニル基、ナフチルエチニル基等である。
アルカリ金属水酸化物は、有機溶媒や水に溶解したものを使用してもよい。好ましくは、アルカリ金属水酸化物を、水溶媒又は有機溶媒に溶解した溶液として用いる。
上述の本実施形態のエポキシ樹脂の製造方法によって得られるエポキシ樹脂は、式(3)で表されるエポキシ化合物(3)が好ましい。
本実施形態のエポキシ樹脂の製造方法によって得られるエポキシ樹脂は、エポキシ化合物(3)を70.0~99.9質量%含むことが好ましく、エポキシ化合物(3)の含有量は、より好ましくは80.0~97.0%、更に好ましくは82.0~94.0質量%である。
本実施形態のエポキシ樹脂の製造方法によって得られるエポキシ樹脂は、エポキシ化合物(3)と共に、下記式(4)で表されるエポキシ化合物(4)を含むことが好ましい。
本実施形態のエポキシ樹脂の製造方法によって得られるエポキシ樹脂は、エポキシ化合物(4)を0.1~8.0質量%を含むことが好ましく、エポキシ化合物(4)の含有量は、より好ましくは0.2~5.0質量%、更に好ましくは0.4~3.0質量%である。
本実施形態のエポキシ樹脂の製造方法によって得られるエポキシ樹脂には、更に、これらエポキシ化合物(3)、エポキシ化合物(4)以外のその他の成分(以下、単に「その他の成分」と称す。)を含んでもよい。本実施形態のエポキシ樹脂の製造方法によって得られるエポキシ樹脂中のその他の成分の含有量は15.0質量%以下であることが好ましい。本実施形態のエポキシ樹脂の製造方法によって得られるエポキシ樹脂は、その他の成分を含む場合は、エポキシ化合物(3)とエポキシ化合物(4)とその他の成分の合計が100質量%となるものである。
本発明の第二の実施形態である、エポキシ樹脂組成物(A)は、前記式(3)で表されるエポキシ化合物(3)、即ち、エポキシ樹脂(3)を80.0~99.9質量%含み、且つ下記式(5)で表されるエポキシ化合物(以下、「エポキシ化合物(5)」又は「エポキシ樹脂(5)」と称す場合がある。)を0.1~8.0質量%含むことを特徴とするものである。
本実施形態のエポキシ樹脂組成物(A)の製造方法は、特に制限はないが、前述の第一の実施形態のエポキシ樹脂の製造方法に従って、原料フェノール化合物と、エピハロヒドリンとを反応させてエポキシ樹脂を製造する際に、化合物(1)の存在下に反応させる方法において、化合物(1)の代わりに下記式(6)で表される化合物(以下、「化合物(6)」と称す場合がある。)を用いることで、エポキシ化合物(4)の代わりにエポキシ樹脂(5)を生成させる点以外は上記した第一の実施形態のエポキシ樹脂の製造方法と同様に製造することができ、それぞれの好ましいものについても同様であり、重複する記載については省略する。
本発明の第三の実施形態であるエポキシ樹脂組成物(B)は、少なくとも前述した第二の実施形態のエポキシ樹脂組成物(A)と硬化剤を含む。
本実施形態のエポキシ樹脂組成物(B)には、必要に応じて、第二の実施形態のエポキシ樹脂組成物(A)中に含まれるエポキシ樹脂以外の他のエポキシ樹脂(以下、単に「他のエポキシ樹脂」と称す場合がある。)、硬化促進剤、無機充填剤、カップリング剤等を適宜配合することができる。
本実施形態において硬化剤とは、エポキシ樹脂のエポキシ基間の架橋反応及び/又は鎖長延長反応に寄与する物質を示す。本発明においては通常、「硬化促進剤」と呼ばれるものであってもエポキシ樹脂のエポキシ基間の架橋反応及び/又は鎖長延長反応に寄与する物質であれば、硬化剤とみなすこととする。
本実施形態において、「固形分」とは溶媒を除いた成分を意味し、性状として固体のエポキシ樹脂のみならず、半固形や粘稠な液状物のものをも含むものとする。「全エポキシ樹脂成分」とは、本実施形態のエポキシ樹脂組成物(B)に含まれるエポキシ樹脂の量に相当し、本実施形態のエポキシ樹脂組成物(B)がエポキシ樹脂組成物(A)のみを含む場合は、エポキシ樹脂組成物(A)中のエポキシ樹脂(エポキシ樹脂(3)及びエポキシ樹脂(5)とその他の成分中のエポキシ樹脂(3)及びエポキシ樹脂(5)以外のエポキシ樹脂)の量が該当する。本実施形態のエポキシ樹脂組成物(B)がエポキシ樹脂組成物(A)と他のエポキシ樹脂を含む場合は、エポキシ樹脂組成物(A)中のエポキシ樹脂と他のエポキシ樹脂の合計に相当する。
フェノール系硬化剤の具体例としては、ビスフェノールA、ビスフェノールF、ビスフェノールS、ビスフェノールAD、ハイドロキノン、レゾルシン、メチルレゾルシン、ビフェノール、テトラメチルビフェノール、ジヒドロキシナフタレン、ジヒドロキシジフェニルエーテル、チオジフェノール類、フェノールノボラック樹脂、クレゾールノボラック樹脂、フェノールアラルキル樹脂、ビフェニルアラルキル樹脂、ナフトールアラルキル樹脂、テルペンフェノール樹脂、ジシクロペンタジエンフェノール樹脂、ビスフェノールAノボラック樹脂、トリスフェノールメタン型樹脂、ナフトールノボラック樹脂、臭素化ビスフェノールA、臭素化フェノールノボラック樹脂等の種々の多価フェノール類や、種々のフェノール類とベンズアルデヒド、ヒドロキシベンズアルデヒド、クロトンアルデヒド、グリオキザール等の種々のアルデヒド類との縮合反応で得られる多価フェノール樹脂類、キシレン樹脂とフェノール類との縮合反応で得られる多価フェノール樹脂類、重質油又はピッチ類とフェノール類とホルムアルデヒド類との共縮合樹脂、フェノール・ベンズアルデヒド・キシリレンジメトキサイド重縮合物、フェノール・ベンズアルデヒド・キシリレンジハライド重縮合物、フェノール・ベンズアルデヒド・4,4’-ジメトキサイドビフェニル重縮合物、フェノール・ベンズアルデヒド・4,4’-ジハライドビフェニル重縮合物等の各種のフェノール樹脂類等が挙げられる。
アミン系硬化剤(ただし、第三級アミンを除く。)の例としては、脂肪族アミン類、ポリエーテルアミン類、脂環式アミン類、芳香族アミン類等が挙げられる。
酸無水物系硬化剤としては、酸無水物、酸無水物の変性物等が挙げられる。
アミド系硬化剤としてはジシアンジアミド及びその誘導体、ポリアミド樹脂等が挙げられる。アミド系硬化剤は1種のみで用いても、2種以上を任意の組み合わせ及び比率で混合して用いてもよい。
イミダゾール類としては、2-フェニルイミダゾール、2-エチル-4(5)-メチルイミダゾール、2-フェニル-4-メチルイミダゾール、1-ベンジル-2-メチルイミダゾール、1-ベンジル-2-フェニルイミダゾール、1-シアノエチル-2-ウンデシルイミダゾール、1-シアノ-2-フェニルイミダゾール、1-シアノエチル-2-ウンデシルイミダゾールトリメリテイト、1-シアノエチル-2-フェニルイミダゾリウムトリメリテイト、2,4-ジアミノ-6-[2’-メチルイミダゾリル-(1’)]-エチル-s-トリアジン、2,4-ジアミノ-6-[2’-エチル-4’-メチルイミダゾリル-(1’)]-エチル-s-トリアジン、2,4-ジアミノ-6-[2’-メチルイミダゾリル-(1’)]-エチル-s-トリアジンイソシアヌル酸付加体、2-フェニルイミダゾールイソシアヌル酸付加体、2-フェニル-4,5-ジヒドロキシメチルイミダゾール、2-フェニル-4-メチル-5-ヒドロキシメチルイミダゾール、及びエポキシ樹脂と上記イミダゾール類との付加体等が例示される。
イミダゾール類は触媒能を有するため、一般的には硬化促進剤にも分類されうるが、本実施形態においては硬化剤として分類するものとする。
本実施形態のエポキシ樹脂組成物(B)においては前記硬化剤以外にその他の硬化剤を用いることができる。その他の硬化剤は特に制限はなく、一般的にエポキシ樹脂の硬化剤として知られているものはすべて使用できる。
その他の硬化剤は1種のみで用いても、2種以上を組み合わせて用いてもよい。
本実施形態のエポキシ樹脂組成物(B)は、前記エポキシ樹脂組成物(A)以外に、更に他のエポキシ樹脂を含むことができる。他のエポキシ樹脂を含むことにより、本発明のエポキシ樹脂組成物(B)の耐熱性、耐応力性、耐吸水性、難燃性等を向上させることができる。
具体例としては、ビスフェノールA型エポキシ樹脂、トリスフェノールメタン型エポキシ樹脂、アントラセン型エポキシ樹脂、フェノール変性キシレン樹脂型エポキシ樹脂、ビスフェノールシクロドデシル型エポキシ樹脂、ビスフェノールジイソプロピリデンレゾルシン型エポキシ樹脂、ビスフェノールF型エポキシ樹脂、ビスフェノールAD型エポキシ樹脂、ハイドロキノン型エポキシ樹脂、メチルハイドロキノン型エポキシ樹脂、ジブチルハイドロキノン型エポキシ樹脂、レゾルシン型エポキシ樹脂、メチルレゾルシン型エポキシ樹脂、ビフェノール型エポキシ樹脂、エポキシ樹脂組成物(A)中のエポキシ樹脂(1),(2)以外のテトラメチルビフェノール型エポキシ樹脂、テトラメチルビスフェノールF型エポキシ樹脂、ジヒドロキシジフェニルエーテル型エポキシ樹脂、チオジフェノール類から誘導されるエポキシ樹脂、ジヒドロキシナフタレン型エポキシ樹脂、ジヒドロキシアントラセン型エポキシ樹脂、ジヒドロキシジヒドロアントラセン型エポキシ樹脂、ジシクロペンタジエン型エポキシ樹脂、ジヒドロキシスチルベン類から誘導されるエポキシ樹脂、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、ナフトールノボラック型エポキシ樹脂、フェノールアラルキル型エポキシ樹脂、ナフトールアラルキル型エポキシ樹脂、ビフェニルアラルキル型エポキシ樹脂、テルペンフェノール型エポキシ樹脂、ジシクロペンタジエンフェノール型エポキシ樹脂、フェノール・ヒドロキシベンズアルデヒドの縮合物から誘導されるエポキシ樹脂、フェノール・クロトンアルデヒドの縮合物から誘導されるエポキシ樹脂、フェノール・グリオキザールの縮合物から誘導されるエポキシ樹脂、重質油又はピッチ類とフェノール類とホルムアルデヒド類との共縮合樹脂から誘導されるエポキシ樹脂、ジアミノジフェニルメタンから誘導されるエポキシ樹脂、アミノフェノールから誘導されるエポキシ樹脂、キシレンジアミンから誘導されるエポキシ樹脂、メチルヘキサヒドロフタル酸から誘導されるエポキシ樹脂、ダイマー酸から誘導されるエポキシ樹脂等が挙げられる。
本実施形態のエポキシ樹脂組成物(B)は、硬化促進剤を含むことが好ましい。硬化促進剤を含むことにより、硬化時間の短縮、硬化温度の低温化が可能となり、所望の硬化物を得やすくすることができる。
硬化促進剤は、上記に挙げたもののうち、1種のみで用いてもよく、2種以上を任意の組み合わせ及び比率で混合して用いてもよい。
本実施形態のエポキシ樹脂組成物(B)には無機充填材を配合することができる。無機充填材としては例えば、溶融シリカ、結晶性シリカ、ガラス粉、アルミナ、炭酸カルシウム、硫酸カルシウム、タルク、チッ化ホウ素等が挙げられる。これらは、1種のみで用いても2種以上を任意の組み合わせ及び配合比率で組み合わせて用いてもよい。これらの中でも半導体封止の用途に用いる場合には、破砕型及び/又は球状の、溶融及び/又は結晶性シリカ粉末充填材が好ましい。
無機充填材の平均粒子径が上記上限値以下であると成形時に金型の狭い隙間に充填材が目詰まりしにくく、材料の充填性が向上しやすくなるために好ましい。
本実施形態のエポキシ樹脂組成物(B)には離型剤を配合することができる。離型剤としては例えば、カルナバワックス等の天然ワックスや、ポリエチレンワックス等の合成ワックス、ステアリン酸やステアリン酸亜鉛等の高級脂肪酸類及びその金属塩類、パラフィン等の炭化水素系離型剤を用いることができる。これらは、1種のみで用いても2種以上を任意の組み合わせ及び配合比率で組み合わせて用いてもよい。
本実施形態のエポキシ樹脂組成物(B)には、カップリング剤を配合することが好ましい。カップリング剤は無機充填材と併用することが好ましい。カップリング剤を配合することにより、マトリックスであるエポキシ樹脂と無機充填材との接着性を向上させることができる。カップリング剤としてはシランカップリング剤、チタネートカップリング剤等が挙げられる。
本実施形態のエポキシ樹脂組成物(B)には、前記した以外の成分(本発明において、「その他の配合成分」と称することがある。)を配合することができる。その他の配合成分としては例えば、難燃剤、可塑剤、反応性希釈剤、顔料等が挙げられる。これらは、必要に応じて適宜に配合することができる。本実施のエポキシ樹脂組成物(B)には上記で挙げた成分以外のものを配合してもよい。
本実施形態の硬化性樹脂組成物(B)を用いた硬化物は、吸水が少なく電子材料として、成形時の耐熱クラック性、及び長期間使用したときの電気的信頼性に優れている。
本実施形態の硬化性樹脂組成物(B)を用いる積層板の製造方法としては、繊維質基材に本実施形態の硬化性樹脂組成物(B)よりなる前述の樹脂ワニスを含浸させたプリプレグを含む積層物を加熱加圧して硬化させて積層板を製造する方法が挙げられる。
積層物を加熱加圧する際の加熱温度は、前述の硬化温度が好ましい。加圧条件としては、2~20kN/m2が好ましい。
本実施形態の硬化性樹脂組成物(B)を封止材として用いる場合、本実施形態の硬化性樹脂組成物が適用される封止材の形状は、特に限定されず、例えば、公知の半導体等で採用される形状と同様の形状を採用できる。
本実施形態の硬化性樹脂組成物(B)を用いて封止材を形成する方法としては、例えばトランスファー成形法、圧縮成形法等を用いて半導体を封止する方法が挙げられる。
以下の実施例及び比較例で用いた原料、反応生成物等の構造式は以下の通りである。
以下の実施例及び比較例で得られたエポキシ樹脂(エポキシ樹脂組成物)及びその硬化物の物性等の測定・評価方法は以下の通りである。
<エポキシ当量>
「1当量のエポキシ基を含むエポキシ樹脂の質量」と定義され、JIS K7236に準じて測定した。
エポキシ樹脂組成物中のエポキシ樹脂(3-1)、(4-1)、(5-1)の含有割合については、JIS K0124に基づき、以下の装置及び条件によるLC分析を行い、エポキシ樹脂(3-1)、エポキシ樹脂(4-1)、(5-1)、その他の成分で表されるLCチャートの各Areaの面積%を、エポキシ樹脂(3-1)、エポキシ樹脂(4-1)、(5-1)及びその他の成分の合計の面積%で除して割合(質量%)と算出した。
装置:Waters社製高速液体クロマトグラフィーWaters2690カラム:東ソー社製TSKgel ODS-120A(カラム寸法4.6mmI.D.×15cm)
溶離液:アセトニトリル/水=30/70を60分で100/0にするグラジエント分析流速:1mL/min
検出器:UV(280nm)
温度:35℃
試料濃度:0.1%
インジェクション量:10μL
ピーク面積の解析ソフト:Waters社製Empower2
0.5gのエポキシ樹脂を20mLのジオキサンに溶解し、1NのKOH/エタノール溶液5mLで30分還流した後、0.01N硝酸銀溶液で滴定して定量した。
示差走査熱量測定器(製)を用いて測定した。サンプル5mgに対して10℃/minで昇温したときの発熱ピークトップ時の温度を融点として採用した。
エポキシ樹脂組成物20gをアルミ製の皿の上に秤量し、セーフベンドライヤー(製)中130℃で1時間加熱して融解させた。セーフベンドライヤーから皿を取り出し、室温に置いてから結晶が3カ所で析出するまでの時間を確認し、結晶化時間とした。
<ガラス転移温度Tg(tanδ)及び貯蔵弾性率E’(250℃)>
硬化物を縦5cm、横1cm、厚さ4mmに切削して得られた試験片を用いて、以下の条件で動的粘弾性測定(DMA:Dynamic MechanicalAnalysis)を行い、Tg(tanδ)及び250℃での貯蔵弾性率(E’)を測定した。
分析装置:セイコーインスツルメント社製 EXSTAR6100
測定モード:3点曲げモード
測定温度範囲:30℃から280℃
昇温速度:5℃/min
降温速度:5℃/min
※tanδのピークトップでの温度をTg(tanδ)とした。
硬化物を縦2cm、横2cm、厚さ4mmに切削して得られた試験片を作製し、恒温恒湿装置(ナガノサイエンス株式会社「LH21-11P」)内で、85℃/85%RH雰囲気下で24時間放置した後、吸水前後の試験片の質量から下記式で硬化物の吸水率を算出した。
吸水率(%)={(給水後の試験片の質量-給水前の試験片の質量)/(給水前の試験片の質量)}×100
[実施例1]
温度計、撹拌装置、冷却管を備えた内容量5Lの四口フラスコに、原料フェノール(2-1):テトラメチルビフェノール(三菱ケミカル社製)200g、エピクロルヒドリン1071g、化合物(1-1)5.4g、イソプロピルアルコール417g、水150gを仕込み、40℃に昇温して均一に溶解させた後、48.5質量%の水酸化ナトリウム水溶液159gを90分かけて滴下した。滴下と同時に、40℃から65℃まで90分かけて昇温した。その後、65℃で30分保持し反応を完了させ、5Lの分液ロートに反応液を移し、65℃の温水300gを加えて65℃まで冷却して1時間静置した。静置後、分離した油層と水層から水層を抜き出し、副生塩及び過剰の水酸化ナトリウムを除去した。その後、150℃の減圧下でエピクロルヒドリンを完全に除去した。
結果を表1に示す。
実施例1において、化合物(1-1)の仕込み量を10.7gに変更した以外は同様に実施して実施例2のエポキシ樹脂組成物を得、同様にエポキシ当量(g/eq)、エポキシ樹脂(3-1)、(4-1)、(5-1)の含有量(%)の算出、加水分解性塩素量(質量ppm)、融点(℃)、結晶化速度(秒)の測定を行った。
結果を表1に示す。
実施例1において、化合物(1-1)の仕込み量を21.4gに変更した以外は同様に実施して実施例3のエポキシ樹脂組成物を得、同様にエポキシ当量(g/eq)、エポキシ樹脂(3-1)、(4-1)、(5-1)の含有量(%)の算出、加水分解性塩素量(質量ppm)、融点(℃)、結晶化速度(秒)の測定を行った。
結果を表1に示す。
実施例1において、化合物(1-1)の仕込み量を36.4gと変更した以外は同様に実施して実施例4のエポキシ樹脂組成物を得、同様にエポキシ当量(g/eq)、エポキシ樹脂(3-1)、(4-1)、(5-1)の含有量(%)の算出、加水分解性塩素量(質量ppm)、融点(℃)、結晶化速度(秒)の測定を行った。
結果を表1に示す。
実施例1において、化合物(1-1)の仕込み量を53.5gに変更した以外は同様に実施して実施例5のエポキシ樹脂組成物を得、同様にエポキシ当量(g/eq)、エポキシ樹脂(3-1)、(4-1)、(5-1)の含有量(%)の算出、加水分解性塩素量(質量ppm)、融点(℃)、結晶化速度(秒)の測定を行った。
結果を表1に示す。
実施例1において、化合物(1-1)の仕込み量を107gに変更した以外に同様に実施して実施例6のエポキシ樹脂組成物を得、同様にエポキシ当量(g/eq)、エポキシ樹脂(3-1)、(4-1)、(5-1)の含有量(%)の算出、加水分解性塩素量(質量ppm)、融点(℃)、結晶化速度(秒)の測定を行った。
結果を表1に示す。
実施例1において、エピクロルヒドリンの仕込み量を765gに、化合物(1-1)の仕込み量を15.3gに、イソプロピルアルコールの仕込み量を297gに、水を0gに変更した以外は同様に実施して実施例7のエポキシ樹脂組成物を得、同様に下記に示す方法によって、エポキシ当量(g/eq)、エポキシ樹脂(3-1)、(4-1)、(5-1)の含有量(%)の算出、加水分解性塩素量(質量ppm)、融点(℃)、結晶化速度(秒)の測定を行った。
結果を表1に示す。
実施例1において、化合物(1-1)を用いなかったこと以外は同様に実施して比較例1のエポキシ樹脂組成物を得、同様にエポキシ当量(g/eq)、エポキシ樹脂(3-1)、(4-1)、(5-1)の含有量(%)の算出、加水分解性塩素量(質量ppm)、融点(℃)、結晶化速度(秒)の測定を行った。
結果を表1に示す。
実施例7において、化合物(1-1)を用いなかったこと以外は同様に実施して比較例2のエポキシ樹脂組成物を得、同様にエポキシ当量(g/eq)、エポキシ樹脂(3-1)、(4-1)、(5-1)の含有量(%)の算出、加水分解性塩素量(質量ppm)、融点(℃)、結晶化速度(秒)の測定を行った。
結果を表1に示す。
比較例1と同様の操作によりエポキシ樹脂組成物を得た。その後、得られたエポキシ樹脂組成物に対して、プロピレングリコールモノメチルエーテル中で3回晶析操作を行い、含有されている溶剤を減圧下で留去して、比較例3のエポキシ樹脂組成物を得、以下同様にエポキシ当量(g/eq)、エポキシ樹脂(3-1)、(4-1)、(5-1)の含有量(%)の算出、加水分解性塩素量(質量ppm)、融点(℃)、結晶化速度(秒)の測定を行った。
結果を表1に示す。
[実施例8~12及び比較例4、5]
表2に示す割合で、実施例1~5及び比較例1、3のエポキシ樹脂組成物と、硬化剤(フェノールノボラック樹脂(群栄化学社製商品名「PSM4261」))及び硬化触媒(トリフェニルホスフィン(北興化学工業社製商品名「ホクコーTPP」))を配合し、100℃まで加温して均一になるまで撹拌して、それぞれエポキシ樹脂組成物を得た。得られたエポキシ樹脂組成物を120℃で2時間、175℃にて6時間加熱して硬化させることで硬化物を得た。
得られた硬化物について、Tg及び貯蔵弾性率の測定と吸水試験を行って、結果を表2に示した。なお、表2中の「部」は「質量部」を表す。
実施例1~7より、エポキシ樹脂組成物中のエポキシ樹脂(4)又は(5)の含有量は、反応時のエピクロロヒドリンに対する化合物(1)(化合物(6))の量によって制御できることが分かった。反応時の化合物(1)(化合物(6))の含有量をコントロールすることによって、低温で流動する特性を有するエポキシ樹脂を得ることができる。
また、実施例8~12の結果より、エポキシ樹脂組成物中のエポキシ樹脂(4)又は(5)の含有量の制御された範囲において、その硬化物は、貯蔵弾性率が低く、吸水率の低い特性を有するものとなる。
この結果より、エポキシ樹脂(4)又は(5)を所定の割合で含むエポキシ樹脂組成物は、エポキシ樹脂組成物製造時の生産効率が高く、半導体製造時に環境への負荷が少なく、耐熱耐久性及び機械特性、吸水性の観点から、信頼性の高い電子材料の原料となりうることが分かる。
Claims (10)
- 前記式(1)で表される化合物の量が、前記エピハロヒドリンに対して0.01~19質量%である、請求項1に記載のエポキシ樹脂の製造方法。
- 下記式(3)で表されるエポキシ化合物を80.0~99.9質量%含み、且つ下記式(5)で示されるエポキシ化合物を0.1~8.0質量%含むエポキシ樹脂組成物(A)。
(上記式(3)及び(5)中、X1は、炭素数1~13の2価の炭化水素基、-O-、-S-、-SO2-、-C(CF3)2-及び-CO-からなる群より選ばれる基又は直接結合であり、R2~R13は、それぞれ独立に、水素原子、炭素数1~12のアルキル基、炭素数1~12のアルコキシ基、炭素数6~12のアリール基、炭素数2~12のアルケニル基又は炭素数2~12のアルキニル基である。nは0~10の整数を表す。R14は炭素数3~8の非直鎖型の脂肪族炭化水素基である。) - 加水分解性塩素量が1000質量ppm以下である、請求項5に記載のエポキシ樹脂組成物(A)。
- 請求項5又は6に記載のエポキシ樹脂組成物(A)を含み、前記エポキシ樹脂組成物(A)100質量部に対し、硬化剤を0.01~1000質量部含むエポキシ樹脂組成物(B)。
- 前記硬化剤がフェノール系硬化剤、アミン系硬化剤、酸無水物系硬化剤及びアミド系硬化剤からなる群から選ばれる少なくとも1種である、請求項7に記載のエポキシ樹脂組成物(B)。
- 請求項7又は8に記載のエポキシ樹脂組成物(B)を硬化させてなる硬化物。
- 請求項7又は8に記載のエポキシ樹脂組成物(B)を硬化させてなる電気・電子部品。
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JPS5839677A (ja) | 1981-09-02 | 1983-03-08 | Mitsubishi Petrochem Co Ltd | 新規ポリエポキシ化合物 |
JP2014136725A (ja) * | 2013-01-16 | 2014-07-28 | Nippon Kayaku Co Ltd | エポキシ樹脂、および硬化性樹脂組成物 |
JP2021091778A (ja) * | 2019-12-10 | 2021-06-17 | 日本化薬株式会社 | エポキシ樹脂、およびエポキシ樹脂組成物 |
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JPS5839677A (ja) | 1981-09-02 | 1983-03-08 | Mitsubishi Petrochem Co Ltd | 新規ポリエポキシ化合物 |
JP2014136725A (ja) * | 2013-01-16 | 2014-07-28 | Nippon Kayaku Co Ltd | エポキシ樹脂、および硬化性樹脂組成物 |
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