WO2011108524A1 - 樹脂組成物、プリプレグ、および積層板 - Google Patents
樹脂組成物、プリプレグ、および積層板 Download PDFInfo
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- WO2011108524A1 WO2011108524A1 PCT/JP2011/054590 JP2011054590W WO2011108524A1 WO 2011108524 A1 WO2011108524 A1 WO 2011108524A1 JP 2011054590 W JP2011054590 W JP 2011054590W WO 2011108524 A1 WO2011108524 A1 WO 2011108524A1
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- 238000004811 liquid chromatography Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 125000005439 maleimidyl group Chemical group C1(C=CC(N1*)=O)=O 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 239000005078 molybdenum compound Substances 0.000 description 1
- 150000002752 molybdenum compounds Chemical class 0.000 description 1
- 229910000476 molybdenum oxide Inorganic materials 0.000 description 1
- 125000002950 monocyclic group Chemical group 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000010680 novolac-type phenolic resin Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000012766 organic filler Substances 0.000 description 1
- AFEQENGXSMURHA-UHFFFAOYSA-N oxiran-2-ylmethanamine Chemical compound NCC1CO1 AFEQENGXSMURHA-UHFFFAOYSA-N 0.000 description 1
- PQQKPALAQIIWST-UHFFFAOYSA-N oxomolybdenum Chemical compound [Mo]=O PQQKPALAQIIWST-UHFFFAOYSA-N 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- PARWUHTVGZSQPD-UHFFFAOYSA-N phenylsilane Chemical class [SiH3]C1=CC=CC=C1 PARWUHTVGZSQPD-UHFFFAOYSA-N 0.000 description 1
- 239000003504 photosensitizing agent Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 1
- 229920003217 poly(methylsilsesquioxane) Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 125000005575 polycyclic aromatic hydrocarbon group Chemical group 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000000790 scattering method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- FZHAPNGMFPVSLP-UHFFFAOYSA-N silanamine Chemical class [SiH3]N FZHAPNGMFPVSLP-UHFFFAOYSA-N 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 235000007586 terpenes Nutrition 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 230000000930 thermomechanical effect Effects 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 150000003568 thioethers Chemical class 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
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- UKRDPEFKFJNXQM-UHFFFAOYSA-N vinylsilane Chemical class [SiH3]C=C UKRDPEFKFJNXQM-UHFFFAOYSA-N 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/04—Layered products comprising a layer of synthetic resin as impregnant, bonding, or embedding substance
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/38—Layered products comprising a layer of synthetic resin comprising epoxy resins
-
- 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
- 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
- C08G59/40—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 curing agents used
- C08G59/4007—Curing agents not provided for by the groups C08G59/42 - C08G59/66
- C08G59/4014—Nitrogen containing 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
- C08G59/40—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 curing agents used
- C08G59/50—Amines
- C08G59/504—Amines containing an atom other than nitrogen belonging to the amine group, carbon and hydrogen
-
- 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
- C08G59/40—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 curing agents used
- C08G59/62—Alcohols or phenols
- C08G59/621—Phenols
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/24—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/24—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
- C08J5/241—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs using inorganic fibres
- C08J5/244—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs using inorganic fibres using glass fibres
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/24—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
- C08J5/249—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs characterised by the additives used in the prepolymer mixture
-
- 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
- C08L63/10—Epoxy resins modified by unsaturated compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2457/00—Electrical equipment
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2363/00—Characterised by the use of epoxy resins; Derivatives of epoxy resins
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
Definitions
- the present invention relates to a resin composition, and more specifically, a resin composition used for a prepreg for printed wiring boards, a prepreg obtained by impregnating or coating a resin composition on a substrate, and obtained by curing the prepreg. It relates to a laminated board.
- Patent Documents 1 to 5 As another method for reducing the thermal expansion in the surface direction, it is known to add an organic filler having rubber elasticity to a varnish containing an epoxy resin (Patent Documents 1 to 5). However, when this varnish is used, a brominated flame retardant may be added to the varnish for the purpose of making the laminated board flame-retardant, which may cause a load on the environment.
- Patent Document 6 a method using silicone rubber as a rubber elastic powder is also known (Patent Document 6).
- a laminate obtained using a varnish to which silicone rubber has been added has an excellent coefficient of thermal expansion, but has insufficient drillability. Accordingly, there is a demand for lowering the thermal expansion coefficient of the resin itself, rather than reducing the thermal expansion only with the filler.
- Japanese Patent No. 3173332 Japanese Patent Laid-Open No. 8-48001 JP 2000-158589 A JP 2003-246849 A JP 2006-143973 A JP 2009-035728 A
- the present inventors have recently used a specific epoxy resin, so that the content of the inorganic filler is reduced for a conventional printed wiring board.
- the present inventors have found that the thermal expansion coefficient in the surface direction of the cured product is low and the heat resistance and flame retardancy are excellent, although it is similar to the resin composition.
- the present invention is based on this finding.
- the resin composition according to the present invention is a resin composition comprising an epoxy resin (A), a maleimide compound (B), a curing agent (C), and an inorganic filler (D),
- the epoxy resin (A) is a resin composition represented by the following formula (I): (Where Ar independently represents a naphthylene group or a phenylene group, and at least one hydrogen atom of both groups may be substituted with an alkyl group or a phenylene group having 1 to 4 carbon atoms, R 1 represents a hydrogen atom or a methyl group, R 2 is independently a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, or the following formula (II): (Wherein R 4 and R 5 each independently represents a hydrogen atom or a methyl group, Ar represents a phenylene group or a naphthylene group, and 1 to 3 hydrogen atoms of the phenylene group or naphthylene group are (It may be substituted with an alkyl
- a prepreg obtained by impregnating or applying the resin composition to a substrate, a laminate obtained by curing the prepreg, and a laminate of the prepreg and a metal foil are laminated.
- a metal foil-clad laminate obtained by curing and curing is also provided.
- the laminated board using the resin composition according to the present invention has a low thermal expansion coefficient in the surface direction of the cured resin and excellent heat resistance while maintaining the content of the inorganic filler at the same level as the conventional resin. Therefore, it can be suitably used as a material for a semiconductor package that requires productivity such as drillability.
- the resin composition according to the present invention can realize high flame retardancy regardless of whether the halogen compound and the phosphorus compound are not used.
- the resin composition according to the present invention contains an epoxy resin (A) having a structure represented by the following formula (I), a maleimide compound (B), a curing agent (C), and an inorganic filler (D) as essential components.
- A epoxy resin
- B maleimide compound
- C curing agent
- D inorganic filler
- the epoxy resin (A) used in the present invention is represented by the following formula (I).
- Ar independently represents a naphthylene group or a phenylene group, but at least one hydrogen atom of both groups may be substituted with an alkyl group or phenylene group having 1 to 4 carbon atoms
- R 1 represents a hydrogen atom or a methyl group
- R 2 is independently a hydrogen atom, an alkyl group having 1 to 4 carbon atoms
- R 4 and R 5 each independently represents a hydrogen atom or a methyl group
- Ar represents a phenylene group or a naphthylene group, and 1 to 3 hydrogen atoms of the phenylene group or naphthylene group are (It may be substituted with an alkyl group having 1 to 4 carbon atoms, and o is a real number of 0.1 to 4 on average.)
- R 7 represents a hydrogen atom or a methyl group
- R 8 each independently represents a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, or an aralkyl group represented by the formula (II)).
- R 9 represents a hydrogen atom or a methyl group
- each R 10 independently represents a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, or an aralkyl group represented by the formula (II)).
- epoxy resins may be used as the above-described epoxy resin, for example, EXA-7311 (manufactured by DIC Corporation) can be suitably used.
- an epoxy resin other than the epoxy resin represented by the above formula (I) may be included.
- an epoxy resin that may be used in combination with the epoxy resin represented by the above formula (I) a non-halogen-based epoxy resin can be used due to the recent growing interest in environmental problems.
- non-halogen epoxy resins include bisphenol A type epoxy resins, bisphenol F type epoxy resins, phenol novolac type epoxy resins, cresol novolac type epoxy resins, bisphenol A novolak type epoxy resins, and trifunctional phenol type epoxy resins.
- Tetrafunctional phenol type epoxy resin, naphthalene type epoxy resin, biphenyl type epoxy resin, aralkyl novolac type epoxy resin, alicyclic epoxy resin, polyol type epoxy resin, glycidylamine, glycidyl ester, butadiene and other double bonds are epoxidized
- the compound obtained by reaction with the compound and hydroxyl group containing silicone resin and epichlorohydrin etc. are mentioned, However, It is not limited to these. Moreover, you may use the above-mentioned non-halogen-type epoxy resin individually or in combination of 2 or more types.
- an aralkyl novolak epoxy resin represented by the following formula (VIII) is particularly preferable in order to improve flame retardancy.
- the aralkyl novolac type epoxy resin include, but are not limited to, a phenol phenyl aralkyl type epoxy resin, a phenol biphenyl aralkyl type epoxy resin, a naphthol aralkyl type epoxy resin, and the like.
- Ar 1 and Ar 2 may each independently have a monocyclic or polycyclic aromatic hydrocarbon selected from the group consisting of a phenyl group, a naphthyl group, and a biphenyl group as a substituent.
- Rx and Ry each independently represents a hydrogen atom, an alkyl group or an aryl group
- G represents a glycidyl group
- m represents an integer of 1 to 5
- n represents 1 to Represents an integer up to 50.
- a phosphorus-containing epoxy resin or a brominated epoxy resin may be used in combination depending on the use for which the resin composition is used.
- the brominated epoxy resin any bromine atom-containing compound having two or more epoxy groups in one molecule can be used without particular limitation.
- Preferred brominated epoxy resins include brominated bisphenol A type epoxy resins and brominated phenol novolac type epoxy resins.
- the above-mentioned epoxy resin (A) is preferably contained in an amount of about 5 to 60 parts by mass with respect to 100 parts by mass in total of the epoxy resin (A), the maleimide compound (B) and the curing agent (C). It is preferably contained in the range of 10 to 40 parts by mass.
- the maleimide compound (B) used in the present invention can be used without particular limitation as long as it is a compound having one or more maleimide groups in one molecule.
- maleimide compound individually or in combination of 2 or more types.
- bis (4-maleimidophenyl) methane, 2,2-bis ⁇ 4- (4-maleimidophenoxy) -phenyl ⁇ propane, and bis (3-ethyl-5-methyl-4-maleimidophenyl) methane Is preferred.
- the maleimide compound (B) is preferably contained in an amount of about 3 to 50 parts by mass with respect to 100 parts by mass as a total of the epoxy resin (A), the maleimide compound (B) and the curing agent (C). In particular, it is preferably contained in the range of 5 to 30 parts by mass.
- the curing agent (C) used in the present invention can be used without particular limitation as long as it is a normal curing agent used for curing an epoxy resin, but among these, it is excellent in heat resistance and particularly has a dielectric constant. And cyanate ester resin (C1) excellent in electrical characteristics such as dielectric loss tangent, and phenol resin (C2) excellent in low water absorption and high heat resistance can be suitably used.
- any generally known cyanate ester resin can be used without particular limitation.
- 1,3-dicyanatobenzene, 1,4-dicyanatobenzene, 1,3,5-tricyanatobenzene, bis (3,5-dimethyl4-cyanatophenyl) methane 1,3-dicyanatonaphthalene 1,4-dicyanatonaphthalene, 1,6-dicyanatonaphthalene, 1,8-dicyanatonaphthalene, 2,6-dicyanatonaphthalene, 2,7-dicyanatonaphthalene, 1,3,6-tricyanatonaphthalene 4,4′-dicyanatobiphenyl, bis (4-cyanatophenyl) methane, 2,2′-bis (4-cyanatophenyl) propane, bis (4-cyanatophenyl) ether, bis (4-c Anatophenyl) thioether, bis (4-cyanatopheny
- a naphthol aralkyl type cyanate ester resin represented by the following formula (VI) can be particularly preferably used as the cyanate ester resin in order to enhance the flame retardancy of the resin composition.
- R 11 represents a hydrogen atom or a methyl group
- q represents an integer of 1 or more.
- the resin composition containing the naphthol aralkyl-type cyanate ester can maintain heat resistance because the resin skeleton has a more rigid structure, is improved in water absorption and heat resistance, and is cured because the reaction inhibition factor is reduced. Improves.
- the ratio (CN / Ep) of the number of cyanate groups of the cyanate ester resin to the number of epoxy groups of the epoxy resin (A) is 0.7-2. It is preferable that the curing agent is added to the resin composition so as to be in the range of 5. If CN / Ep is less than 0.7, the flame retardancy of the laminate is reduced. On the other hand, if it exceeds 2.5, the heat resistance and the like may be reduced.
- the cyanate ester as a curing agent may be added as a bismaleimide / triazine resin prepolymerized with the maleimide compound.
- phenol resin (C2) used as a curing agent in the present invention any resin having two or more phenolic hydroxyl groups in one molecule can be used without particular limitation.
- phenol novolac resin alkylphenol volac resin, bisphenol A novolac resin, dicyclopentadiene type phenol resin, Xylok type phenol resin, terpene modified phenol resin, polyvinylphenols, aralkyl type phenol resin, etc.
- compounds in which two or more hydrogen atoms bonded to the ring are substituted with a hydroxyl group.
- the above phenol resins may be used alone or in combination of two or more.
- a naphthol aralkyl resin represented by the following formula (VII) can be particularly preferably used as the phenol resin (C2) in order to increase the low water absorption and high heat resistance of the resin composition.
- r represents an integer of 1 or more.
- the resin composition containing the naphthol aralkyl resin can maintain heat resistance and can further improve water absorption since the resin skeleton has a more rigid structure.
- the ratio (OH / Ep) between the number of phenol groups of the phenol resin and the number of epoxy groups of the epoxy resin (A) described above is in the range of 0.7 to 2.5. It is preferable that a hardening
- OH / Ep is less than 0.7, the glass transition temperature is lowered. On the other hand, when it exceeds 2.5, flame retardancy may be lowered.
- the phenol resin as a curing agent may be used in combination with the above-described cyanate ester resin or a bismaleimide / triazine resin obtained by prepolymerization of a cyanate ester and a maleimide compound.
- the inorganic filler (D) used in this invention is an inorganic filler normally used for the resin composition for electrical wiring boards, it can be especially used without a restriction
- silicas such as natural silica, fused silica, amorphous silica, hollow silica, molybdenum compounds such as boehmite, molybdenum oxide, zinc molybdate, alumina, talc, calcined talc, mica, short glass fiber, spherical glass (E glass or Glass fine powders such as T glass and D glass) and the like, but are not limited thereto.
- the above inorganic fillers may be used alone or in appropriate combination of two or more.
- the inorganic filler (D) preferably has an average particle diameter (D50) in the range of 0.2 to 5 ⁇ m from the viewpoint of dispersibility.
- D50 means a median diameter, and is a diameter in which the larger side and the smaller side are equivalent when the particle size distribution of the measured powder is divided into two.
- the D50 value of the inorganic filler is generally measured by a wet laser diffraction / scattering method.
- the inorganic filler (D) is preferably contained in an amount of 50 to 200 parts by mass with respect to 100 parts by mass in total of the epoxy resin (A), the maleimide compound (B) and the curing agent (C), and 80 to 150 parts by mass. More preferably, it is contained in parts by mass.
- the blending amount of the inorganic filler is less than the above range, the thermal expansion amount increases. On the other hand, when the blending amount is more than the above range, the moldability and drill workability may be deteriorated.
- the inorganic filler (D) may be added to the resin composition alone, but may be added in combination with a silane coupling agent or a wetting and dispersing agent.
- a silane coupling agent any silane coupling agent generally used for surface treatment of inorganic materials can be used without particular limitation.
- aminosilanes such as ⁇ -aminopropyltriethoxysilane, N- ⁇ - (aminoethyl) - ⁇ -aminopropyltrimethoxysilane, epoxysilanes such as ⁇ -glycidoxypropyltrimethoxysilane, ⁇ -methacrylic
- vinyl silanes such as loxypropyltrimethoxysilane
- cationic silanes such as N- ⁇ - (N-vinylbenzylaminoethyl) - ⁇ -aminopropyltrimethoxysilane hydrochloride
- phenylsilanes It is not limited. Moreover, you may use an above-described silane coupling agent individually or in combination of 2 or more types as appropriate.
- any dispersion stabilizer generally used for paints can be used without particular limitation.
- Commercially available dispersion stabilizers may be used.
- Disperbyk-110, 111, 180, 161, BYK-W996, W9010, W903 manufactured by Big Chemie Japan Co., Ltd. can be preferably used. .
- the resin composition according to the present invention may contain other components as necessary in addition to the above-described components.
- a curing accelerator may be included in order to appropriately adjust the curing rate.
- Any curing accelerator can be used without particular limitation as long as it is generally used as a curing accelerator such as epoxy resin, cyanate ester resin, and phenol resin. Examples include, but are not limited to, organic metal salts such as copper, zinc, cobalt, nickel, imidazoles and derivatives thereof, and tertiary amines.
- the resin composition may contain silicone composite powder as necessary.
- the silicone composite powder is obtained by coating a fine powder made of an addition polymer of vinyl group-containing dimethylpolysiloxane and methylhydrogenpolysiloxane with a silicone resin to improve dispersibility.
- the silicone composite powder preferably has an average particle size (D50) in the range of 1 to 15 ⁇ m from the viewpoint of dispersibility.
- the silicone composite powder is preferably contained in a range of 30 parts by mass or less, particularly 5 to 25 parts by mass with respect to 100 parts by mass of the total amount of the epoxy resin (A), the maleimide compound (B) and the curing agent (C). It is preferable to be included in the range. If the added amount of the silicone composite powder is more than the above range, the moldability may be lowered.
- the resin composition may contain silicone resin powder as a flame retardant aid, if necessary.
- Silicone resin powder is polymethylsilsesquioxane in which siloxane bonds are crosslinked in a three-dimensional network.
- the silicone resin powder is preferably contained in the range of 30 parts by mass or less, particularly 25 parts by mass or less, with respect to 100 parts by mass of the total amount of the epoxy resin (A), the maleimide compound (B) and the curing agent (C). It is preferable to be included in the range. If the addition amount of the silicone resin powder is more than the above range, the moldability may be lowered.
- the resin composition according to the present invention is not limited to the desired properties, but other thermosetting resins, thermoplastic resins, various polymer compounds such as oligomers and elastomers thereof, and other flame retardants. May be added. These can be used without particular limitation as long as they are generally used in resin compositions for printed wiring boards.
- the flame retardant compound include nitrogen-containing compounds such as melamine and benzoguanamine, and oxazine ring-containing compounds.
- Additives include UV absorbers, antioxidants, photopolymerization initiators, optical brighteners, photosensitizers, dyes, pigments, thickeners, lubricants, antifoaming agents, dispersants, leveling agents, brighteners A polymerization inhibitor and the like, and these additives may be used alone or in combination of two or more thereof as necessary.
- the prepreg according to the present invention is obtained by impregnating or coating the above-described resin composition on a substrate.
- a base material the well-known thing used for various printed wiring board materials can be used. Examples include glass fibers such as E glass, D glass, S glass, NE glass, T glass, and Q glass, or inorganic fibers other than glass, or organic fibers such as polyimide, polyamide, and polyester. Can be selected as appropriate.
- glass fiber of E glass which is excellent in the balance between the expansion coefficient in the plane direction and the drilling workability.
- any material can be used without particular limitation as long as it can be impregnated or coated with the resin composition.
- Examples thereof include woven fabric, non-woven fabric, roving, chopped strand mat, and surfacing mat.
- the thickness of the substrate is usually about 0.01 to 0.30 mm, but is not limited to this range.
- the prepreg according to the present invention can be produced by impregnating or applying the above resin composition to a substrate.
- the resin is semi-cured by heating in a dryer at 100 to 200 ° C. for 1 to 60 minutes.
- the adhesion amount of the resin composition (including the inorganic filler) to the substrate is preferably in the range of 20 to 90% by mass with respect to the entire prepreg.
- the organic solvent is used to lower the viscosity of the resin composition, improve the handling property, and increase the impregnation property with the glass cloth.
- the organic solvent used for the resin varnish can be used without particular limitation as long as it can dissolve the epoxy resin (A), the maleimide compound (B), and the curing agent (C). Examples include ketones such as acetone, methyl ethyl ketone, methyl isobutyl ketone, and cyclohexanone, aromatic hydrocarbons such as benzene, toluene, and xylene, and amides such as dimethylformamide and dimethylacetamide, but are not limited thereto. is not. These organic solvents may be used alone or in combination of two or more.
- the laminate according to the present invention is obtained by laminating and molding (curing) the above-described prepreg.
- a laminated board is manufactured by superimposing one or two or more of the above-described prepregs, placing a metal foil such as copper or aluminum on one side or both sides as desired, laminating, and molding (curing).
- the metal foil to be used any metal foil can be used without particular limitation as long as it is used for printed wiring board materials.
- the method of the normal laminated board for printed wiring boards and a multilayer board is employable for lamination molding. For example, as the conditions for lamination molding, a multistage press, a multistage vacuum press, continuous molding, an autoclave molding machine, etc.
- the temperature is 100 to 300 ° C.
- the pressure is 2 to 100 kgf / cm 2
- the heating time is 0.05 to A range of 5 hours is common.
- it can also be set as a multilayer board by carrying out lamination molding combining the above-mentioned prepreg and the wiring board for inner layers prepared separately.
- Synthesis Example 1 Synthesis of ⁇ -naphthol aralkyl-type cyanate ester resin A reactor equipped with a thermometer, a stirrer, a dropping funnel and a reflux condenser was previously cooled to 0 to 5 ° C. with brine, and into this, cyanogen chloride 7.47 g (0.122 mol), 9.75 g of 35% hydrochloric acid (0.0935 mol), 76 ml of water, and 44 ml of methylene chloride were charged.
- Synthesis Example 2 Synthesis of bismaleimide-triazine resin 75 parts by mass of 2,2-bis (4-cyanatophenyl) propane (CX: manufactured by Mitsubishi Gas Chemical Co., Ltd.) and bis (3-ethyl-5-methyl-) 25 parts by mass of 4-maleimidiphenyl) methane (BMI-70: manufactured by KAI Kasei Co., Ltd.) was mixed, melted at 150 ° C. and stirred, and reacted until the viscosity of the mixture became 12 poise, and then this was methyl ethyl ketone. To obtain a bismaleimide-triazine resin. The cyanate equivalent of the obtained bismaleimide / triazine resin was 185 g / eq. Met.
- Example 1 50 parts by mass of the ⁇ -naphthol aralkyl-type cyanate ester resin obtained in Synthesis Example 1 and 10 parts by mass of bis (3-ethyl-5-methyl-4maleimidophenyl) methane (BMI-70, manufactured by KAI Kasei) 40 parts by mass of polyoxynaphthylene type epoxy resin (EXA-7311, epoxy equivalent: 277 g / eq., Manufactured by DIC Corporation) was mixed and dissolved with methyl ethyl ketone.
- BMI-70 bis (3-ethyl-5-methyl-4maleimidophenyl) methane
- EXA-7311 polyoxynaphthylene type epoxy resin
- a wetting and dispersing agent (disperbyk-161, manufactured by Big Chemie Japan Co., Ltd.), 120 parts by mass of spherical fused silica (SC2050MB, manufactured by Admatex Co., Ltd.), silicone resin powder (Tospearl 120,
- a varnish was prepared by mixing 10 parts by mass of Momentive Performance Materials Japan Ltd. and 0.02 parts by mass of zinc octylate.
- the obtained varnish was diluted with methyl ethyl ketone, impregnated and coated on a 0.1 mm thick E glass woven fabric, and heated and dried at 160 ° C. for 4 minutes to obtain a prepreg having a resin content of 50 mass%.
- Example 2 45 parts by mass of the bismaleimide-triazine resin obtained in Synthesis Example 2, 40 parts by mass of polyoxynaphthylene type epoxy resin (EXA-7311, epoxy equivalent: 277 g / eq., Manufactured by DIC Corporation), and phenol biphenyl Aralkyl type epoxy resin (NC-3000-FH, epoxy equivalent: 320 g / eq., Manufactured by Nippon Kayaku Co., Ltd.) was mixed in an amount of 15 parts by mass and dissolved with methyl ethyl ketone.
- EXA-7311 polyoxynaphthylene type epoxy resin
- NC-3000-FH phenol biphenyl Aralkyl type epoxy resin
- this solution was coated with 2 parts by mass of a wetting and dispersing agent (disperbyk-w903, manufactured by Big Chemie Japan Co., Ltd.) and zinc molybdate coated on talc (chemguard 911C, zinc molybdate supported: 10% by mass, Sherwin)
- a varnish was prepared by mixing 10 parts by mass of Williams Chemicals), 120 parts by mass of spherical fused silica (SC2050MR, manufactured by Admatex Co., Ltd.), and 0.02 parts by mass of zinc octylate.
- the obtained varnish was diluted with methyl ethyl ketone, impregnated and coated on a 0.1 mm thick E glass woven fabric, and heated and dried at 160 ° C. for 4 minutes to obtain a prepreg having a resin content of 50 mass%.
- Example 3 45 parts by mass of the bismaleimide-triazine resin obtained in Synthesis Example 2, 10 parts by mass of the ⁇ -naphthol aralkyl-type cyanate ester resin obtained in Synthesis Example 1, and a polyoxynaphthylene-type epoxy resin (EXA-7311, 40 parts by mass of epoxy equivalent: 277 g / eq., Manufactured by DIC Corporation, 5 parts by mass of phenol novolac type epoxy resin (N770, epoxy equivalent: 190 g / eq., Manufactured by DIC Corporation), and zinc molybdate as talc.
- EXA-7311 40 parts by mass of epoxy equivalent: 277 g / eq., Manufactured by DIC Corporation
- N770 epoxy equivalent: 190 g / eq., Manufactured by DIC Corporation
- zinc molybdate as talc.
- Example 4 45 parts by mass of the bismaleimide-triazine resin obtained in Synthesis Example 2, 10 parts by mass of 2,2-bis (4-cyanatephenyl) propane prepolymer (CA210: cyanate equivalent 139, manufactured by Mitsubishi Gas Chemical), poly 40 parts by mass of oxynaphthylene type epoxy resin (EXA-7311, epoxy equivalent: 277 g / eq., Manufactured by DIC Corporation), phenol biphenyl aralkyl type epoxy resin (NC-3000-FH, epoxy equivalent: 320 g / eq., 5 parts by mass of Nippon Kayaku Co., Ltd.
- a varnish was prepared by The obtained varnish was diluted with methyl ethyl ketone, impregnated and coated on a T glass cloth having a thickness of 0.1 mm, and dried by heating at 160 ° C. for 4 minutes to obtain a prepreg having a resin content of 50% by mass.
- Example 5 50 parts by mass of the ⁇ -naphthol aralkyl-type cyanate ester resin obtained in Synthesis Example 1 and 10 parts by mass of bis (3-ethyl-5-methyl-4maleimidophenyl) methane (BMI-70, manufactured by KAI Kasei) 40 parts by mass of polyoxynaphthylene type epoxy resin (EXA-7311, epoxy equivalent: 277 g / eq., Manufactured by DIC Corporation) was mixed and dissolved with methyl ethyl ketone.
- BMI-70 bis (3-ethyl-5-methyl-4maleimidophenyl) methane
- EXA-7311 polyoxynaphthylene type epoxy resin
- spherical fused silica SC2050MB, manufactured by Admatex Co., Ltd.
- silicone resin powder Tospearl 120, manufactured by Momentive Performance Materials Japan GK
- a varnish was prepared by mixing 15 parts by mass of a silicone rubber powder (silicone composite powder KMP-600, manufactured by Shin-Etsu Chemical Co., Ltd.) and 0.05 part by mass of zinc octylate.
- the obtained varnish was diluted with methyl ethyl ketone, impregnated and coated on a 0.1 mm thick E glass woven fabric, and heated and dried at 160 ° C. for 4 minutes to obtain a prepreg having a resin content of 50 mass%.
- Example 6 35 parts by mass of ⁇ -naphthol aralkyl type cyanate ester resin obtained in Synthesis Example 1 and 10 parts by mass of biphenyl aralkyl type phenol resin (KAYAHARD GPH-103, Nippon Kayaku Co., Ltd., hydroxyl equivalent: 231 g / eq.) Parts, 10 parts by mass of bis (3-ethyl-5-methyl-4maleimidophenyl) methane (BMI-70, manufactured by Keiai Kasei), and polyoxynaphthylene type epoxy resin (EXA-7311, epoxy equivalent: 277 g / eq) , Manufactured by DIC Corporation) was mixed and dissolved with methyl ethyl ketone.
- biphenyl aralkyl type phenol resin (KAYAHARD GPH-103, Nippon Kayaku Co., Ltd., hydroxyl equivalent: 231 g / eq.) Parts,
- a wetting and dispersing agent (disperbyk-161, manufactured by Big Chemie Japan Co., Ltd.), 120 parts by mass of spherical fused silica (SC2500-SQ, manufactured by Admatex Co., Ltd.), and zinc octylate were added to this solution.
- a varnish was prepared by mixing 0.05 part by mass. The obtained varnish was diluted with methyl ethyl ketone, impregnated and coated on a 0.1 mm thick E glass woven fabric, and heated and dried at 160 ° C. for 4 minutes to obtain a prepreg having a resin content of 50 mass%.
- Example 7 35 parts by mass of the ⁇ -naphthol aralkyl type cyanate ester resin obtained in Synthesis Example 1, 10 parts by mass of naphthol aralkyl resin (SN-495, manufactured by Nippon Steel Chemical Co., Ltd., hydroxyl equivalent: 236 g / eq.), 10 parts by mass of bis (3-ethyl-5-methyl-4maleimidophenyl) methane (BMI-70, manufactured by KAI Kasei), polyoxynaphthylene-type epoxy resin (EXA-7311, epoxy equivalent: 277 g / eq., DIC) 45 parts by mass) was mixed and dissolved with methyl ethyl ketone.
- naphthol aralkyl resin SN-495, manufactured by Nippon Steel Chemical Co., Ltd., hydroxyl equivalent: 236 g / eq.
- BMI-70 bis (3-ethyl-5-methyl-4maleimidophenyl
- a wetting and dispersing agent (disperbyk-161, manufactured by Big Chemie Japan Co., Ltd.), 120 parts by mass of spherical fused silica (SC2500-SQ, manufactured by Admatex Co., Ltd.), and zinc octylate were added to this solution.
- a varnish was prepared by mixing 0.05 part by mass. The obtained varnish was diluted with methyl ethyl ketone, impregnated and coated on a 0.1 mm thick E glass woven fabric, and heated and dried at 160 ° C. for 4 minutes to obtain a prepreg having a resin content of 50 mass%.
- Example 8 40 parts by mass of the ⁇ -naphthol aralkyl-type cyanate ester resin obtained in Synthesis Example 1 and 10 parts by mass of bis (3-ethyl-5-methyl-4maleimidophenyl) methane (BMI-70, manufactured by KAI Kasei) 10 parts by mass of a naphthalene skeleton type phenol resin (EPICLON EXB-9500, manufactured by DIC Corporation, hydroxyl equivalent: 153 g / eq.), Polyoxynaphthylene type epoxy resin (EXA-7311, epoxy equivalent: 277 g / eq., DIC) 45 parts by mass) was mixed and dissolved with methyl ethyl ketone.
- BMI-70 bis (3-ethyl-5-methyl-4maleimidophenyl) methane
- a wetting and dispersing agent (disperbyk-161, manufactured by Big Chemie Japan Co., Ltd.), 120 parts by mass of spherical fused silica (SC2500-SQ, manufactured by Admatex Co., Ltd.), silicone resin powder (Tospearl) 120, manufactured by Momentive Performance Materials Japan Ltd.) and 0.05 part by mass of zinc octylate were mixed to prepare a varnish.
- the obtained varnish was diluted with methyl ethyl ketone, impregnated and coated on a 0.1 mm thick E glass woven fabric, and heated and dried at 160 ° C. for 4 minutes to obtain a prepreg having a resin content of 50 mass%.
- Example 9 Naphthol aralkyl resin (SN-495, manufactured by Nippon Steel Chemical Co., Ltd., hydroxyl equivalent: 236 g / eq.), 40 parts by mass, bis (3-ethyl-5-methyl-4maleimidophenyl) methane (BMI-70, KAI 20 parts by mass of Kasei Chemical Co., Ltd., 40 parts by mass of polyoxynaphthylene type epoxy resin (EXA-7311, epoxy equivalent: 277 g / eq., Manufactured by DIC Corporation), wetting and dispersing agent (disperbyk-w903, Big Chemie Japan) 3 parts by mass), 80 parts by mass of spherical fused silica (SC2500-SQ, manufactured by Admatex Co., Ltd.), and 10 parts by mass of silicone resin powder (Tospearl 120, manufactured by Momentive Performance Materials Japan GK) , Silicone rubber powder whose surface is coated with silicone resin (Silicone composite powder K
- the obtained varnish was diluted with methyl ethyl ketone, impregnated and coated on a 0.1 mm thick E glass woven fabric, and heated and dried at 160 ° C. for 4 minutes to obtain a prepreg having a resin content of 50 mass%.
- Example 10 30 parts by mass of phenylaralkyl-type phenol resin (KAYAHARD GPH-103, manufactured by Nippon Kayaku Co., Ltd., hydroxyl equivalent: 231 g / eq.), Aminotriazine novolac resin (PHENOLITE LA-3018-50P), hydroxyl equivalent: 151 g / eq .
- the obtained varnish was diluted with methyl ethyl ketone, impregnated and coated on a 0.1 mm thick E glass woven fabric, and heated and dried at 160 ° C. for 4 minutes to obtain a prepreg having a resin content of 50 mass%.
- Example 11 20 parts by mass of cresol novolac type phenolic resin (KA-1165, manufactured by DIC Corporation, hydroxyl equivalent: 119 g / eq.), Aminotriazine novolac resin (PHENOLITE LA-3018-50P), hydroxyl equivalent: 151 g / eq.
- the obtained varnish was diluted with methyl ethyl ketone, impregnated and coated on a 0.1 mm thick E glass woven fabric, and heated and dried at 160 ° C. for 4 minutes to obtain a prepreg having a resin content of 50 mass%.
- Example 12 30 parts by mass of naphthalene skeleton type phenol resin (EPICLON EXB-9500, manufactured by DIC Corporation, hydroxyl equivalent: 153 g / eq.), Aminotriazine novolac resin (PHENOLITE LA-3018-50P), hydroxyl equivalent: 151 g / eq.
- the obtained varnish was diluted with methyl ethyl ketone, impregnated and coated on a 0.1 mm thick E glass woven fabric, and heated and dried at 160 ° C. for 4 minutes to obtain a prepreg having a resin content of 50 mass%.
- Comparative Example 1 Instead of the polyoxynaphthylene type epoxy resin used in Example 1, phenol biphenyl aralkyl type epoxy resin (NC-3000-FH, epoxy equivalent: 320 g / eq., Manufactured by Nippon Kayaku Co., Ltd.) was used. A prepreg was obtained in the same manner as in Example 1.
- Comparative Example 2 Instead of the polyoxynaphthylene type epoxy resin used in Example 1, a phenol novolac type epoxy resin (N770, epoxy equivalent: 190 g / eq., Manufactured by DIC Corporation) was used in the same manner as in Example 1. To obtain a prepreg.
- N770 epoxy equivalent: 190 g / eq., Manufactured by DIC Corporation
- Comparative Example 3 Instead of bis (3-ethyl-5-methyl-4maleimidophenyl) methane used in Example 1, phenol biphenyl aralkyl type epoxy resin (NC-3000-FH, epoxy equivalent: 320 g / eq., Nippon Kayaku Co., Ltd.) A prepreg was obtained in the same manner as in Example 1 except that (manufactured by company) was used.
- Comparative Example 4 Instead of the polyoxynaphthylene type epoxy resin used in Example 1, phenol biphenyl aralkyl type epoxy resin (NC-3000-FH, epoxy equivalent: 320 g / eq., Manufactured by Nippon Kayaku Co., Ltd.) was used. A prepreg was obtained in the same manner as in Example 1 except that spherical fused silica was not added.
- Comparative Example 5 Instead of the polyoxynaphthylene type epoxy resin used in Example 1, 40 parts by mass of phenol biphenyl aralkyl type epoxy resin (NC-3000-FH, epoxy equivalent: 320 g / eq., Manufactured by Nippon Kayaku Co., Ltd.) is used. In addition, a prepreg was obtained in the same manner as in Example 1 except that the addition amount of the spherical fused silica was changed from 120 parts by mass to 250 parts by mass.
- NC-3000-FH epoxy equivalent: 320 g / eq.
- Comparative Example 6 Instead of the polyoxynaphthylene type epoxy resin used in Example 1, phenol biphenyl aralkyl type epoxy resin (NC-3000-FH, epoxy equivalent: 320 g / eq., Manufactured by Nippon Kayaku Co., Ltd.) was used. A prepreg was obtained in the same manner as in Example 1 except that the addition amount of the spherical fused silica was changed from 120 parts by mass to 200 parts by mass.
- Comparative Example 7 Instead of the polyoxynaphthylene type epoxy resin used in Example 1, phenol biphenyl aralkyl type epoxy resin (NC-3000-FH, epoxy equivalent: 320 g / eq., Manufactured by Nippon Kayaku Co., Ltd.) was used. A prepreg was obtained in the same manner as in Example 1 except that the addition amount of the spherical fused silica was changed from 120 parts by mass to 180 parts by mass.
- Comparative Example 8 A phenol biphenyl aralkyl type epoxy resin (NC-3000-FH, epoxy equivalent: 320 g / eq., Manufactured by Nippon Kayaku Co., Ltd.) was used in place of the polyoxynaphthylene type epoxy resin used in Example 5. A prepreg was obtained in the same manner as in Example 5.
- Comparative Example 9 A prepreg was obtained in the same manner as in Example 5 except that the amount of spherical fused silica used in Comparative Example 8 was changed from 90 parts by mass to 150 parts by mass.
- Example 10 A phenol biphenyl aralkyl type epoxy resin (NC-3000-FH, epoxy equivalent: 320 g / eq., Manufactured by Nippon Kayaku Co., Ltd.) was used in place of the polyoxynaphthylene type epoxy resin used in Example 8. A prepreg was obtained in the same manner as in Example 8.
- Comparative Example 11 Instead of the polyoxynaphthylene type epoxy resin used in Example 8, a phenol novolac type epoxy resin (N770, epoxy equivalent: 190 g / eq., Manufactured by DIC Corporation) was used in the same manner as in Example 8. To obtain a prepreg.
- N770 epoxy equivalent: 190 g / eq., Manufactured by DIC Corporation
- Example 12 A phenol biphenyl aralkyl type epoxy resin (NC-3000-FH, epoxy equivalent: 320 g / eq., Manufactured by Nippon Kayaku Co., Ltd.) was used in place of the polyoxynaphthylene type epoxy resin used in Example 9. A prepreg was obtained in the same manner as in Example 9.
- Comparative Example 13 Instead of the polyoxynaphthylene type epoxy resin used in Example 9, a phenol novolac type epoxy resin (N770, epoxy equivalent: 190 g / eq., Manufactured by DIC Corporation) was used in the same manner as in Example 9. To obtain a prepreg.
- N770 epoxy equivalent: 190 g / eq., Manufactured by DIC Corporation
- Comparative Example 14 Except for changing the addition amount of the polyoxynaphthylene type epoxy resin used in Example 12 from 40 parts to 0 parts by mass and changing the addition amount of the phenol biphenyl aralkyl type epoxy resin from 10 parts by mass to 50 parts by mass, A prepreg was obtained in the same manner as in Example 12.
- Comparative Example 15 Instead of the polyoxynaphthylene type epoxy resin used in Example 12, a phenol novolac type epoxy resin (N770, epoxy equivalent: 190 g / eq., Manufactured by DIC Corporation) was used in the same manner as in Example 12. To obtain a prepreg.
- N770 epoxy equivalent: 190 g / eq., Manufactured by DIC Corporation
- the obtained metal-clad laminates were evaluated for flame retardancy, glass transition temperature, coefficient of thermal expansion, and drill workability. Evaluation of flame retardancy, glass transition temperature, and coefficient of thermal expansion was performed by the following method after etching the metal-clad laminate and removing the copper foil.
- Flame retardancy Evaluated according to UL94 vertical combustion test method.
- Glass transition temperature Measured with a dynamic viscoelasticity analyzer (TA Instruments) according to JIS C6481.
- Thermal expansion coefficient The temperature was increased from 40 ° C. to 340 ° C. at 10 ° C./min with a thermomechanical analyzer (TA Instruments), and the linear expansion coefficient in the plane direction from 60 ° C. to 120 ° C. was measured. The measurement direction was the longitudinal direction (Warp) of the glass cloth of the laminate.
- the laminates using the prepregs of Examples 1 to 12 have the flame workability, glass transition temperature, thermal expansion, bit breakage, and drillability of hole position accuracy. Whereas the laminates using the prepregs of Comparative Examples 1 to 15 are excellent, there is no balance between flame retardancy, water absorption, heat resistance, and reflow resistance. Inferior.
- Comparative Example 1 since the resin composition contains a phenol biphenyl aralkyl type epoxy resin instead of the polyoxynaphthylene type epoxy resin, the coefficient of thermal expansion is large and the glass transition temperature is low. Moreover, since the resin composition of Comparative Example 2 contains only the phenol novolac type epoxy resin instead of the polyoxynaphthylene type epoxy resin, it has a large coefficient of thermal expansion and is inferior in flame retardancy.
- the resin composition of Comparative Example 3 does not contain the maleimide compound (B), it has a high coefficient of thermal expansion, a low glass transition temperature, and inferior flame retardancy.
- the resin composition of Comparative Example 4 does not contain the inorganic filler (D), the drill workability (hole position accuracy) is good, but the thermal expansion coefficient is large and the flame retardancy is poor. Yes.
- the resin composition of Comparative Example 5 contains an inorganic filler (D) having a thermal expansion coefficient similar to that of Example 1 instead of containing a polyoxynaphthylene-type epoxy resin.
- the laminated board could not be molded.
- the resin compositions of Comparative Examples 6 to 7 similarly do not contain a polyoxynaphthylene type epoxy resin and contain an inorganic filler (D) having a thermal expansion coefficient comparable to that of Example 1, Lamination molding was possible.
- the resin compositions of Comparative Examples 6 to 7 were inferior in drill workability and moldability.
- the resin composition of Comparative Example 8 that did not contain a polyoxynaphthylene type epoxy resin had a larger coefficient of thermal expansion than the resin composition of Example 5.
- the resin composition of Comparative Example 9 in which the addition amount of the inorganic filler was increased had the same thermal expansion coefficient as that of the resin composition of Example 12.
- the hole position accuracy was inferior.
- the resin composition of Comparative Example 10 differs from the resin composition of Example 8 only in that a phenol biphenyl aralkyl type epoxy resin is used instead of the polyoxynaphthylene type epoxy resin. As compared with the resin composition of No. 8, the coefficient of thermal expansion is large and the glass transition temperature is low. Further, the resin composition of Comparative Example 11 differs from the resin composition of Example 8 only in that a phenol novolac type epoxy resin is used instead of the polyoxynaphthylene type epoxy resin. Compared with the resin composition, the coefficient of thermal expansion is large and the flame retardancy is poor.
- the resin composition of Comparative Example 12 differs from the resin composition of Example 9 only in that a phenol biphenyl aralkyl type epoxy resin is used instead of the polyoxynaphthylene type epoxy resin. Compared to the resin composition, the coefficient of thermal expansion is large and the glass transition temperature is low. Further, the resin composition of Comparative Example 13 differs from the resin composition of Example 9 only in that a phenol novolac type epoxy resin is used instead of the polyoxynaphthylene type epoxy resin. Compared with the resin composition of No. 9, the coefficient of thermal expansion is large and the flame retardancy is poor.
- the resin composition of Comparative Example 14 differs from the resin composition of Example 12 in that it does not contain a polyoxynaphthylene type epoxy resin and uses only a phenol biphenyl aralkyl type epoxy resin. Compared to the resin composition of Example 12, the coefficient of thermal expansion is large and the glass transition temperature is low. Further, the resin composition of Comparative Example 15 differs from the resin composition of Example 12 only in that a phenol novolac type epoxy resin is used instead of the polyoxynaphthylene type epoxy resin. Compared with the resin composition of No. 12, it has a large coefficient of thermal expansion and is inferior in flame retardancy.
- the laminate using the resin composition according to the present invention has a low coefficient of thermal expansion in the surface direction of the cured resin, while maintaining the content of the inorganic filler at the same level as the conventional resin, and It also has excellent heat resistance and flame retardancy.
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Abstract
Description
前記エポキシ樹脂(A)が、下記式(I)で表されるものである、樹脂組成物である:
Arは、それぞれ独立して、ナフチレン基またはフェニレン基を表すが、両基の少なくとも1つの水素原子が、炭素数1~4のアルキル基またはフェニレン基で置換されていてもよく、
R1は、水素原子またはメチル基を表し、
R2は、それぞれ独立して、水素原子、炭素原子数1~4のアルキル基、または下記式(II):
で表されるアラルキル基を表し、
R3は、水素原子、前記式(II)で表されるアラルキル基、または下記式(III):
で表されるエポキシ基含有芳香族炭化水素基を表し、
mおよびnは、それぞれ0~4の整数であるが、m=n=0となることはなく、
ナフタレン構造部位への結合位置は、第1位~第8位の何れであってもよい。)
本発明において用いられるエポキシ樹脂(A)は、下記式(I)で表されるものである。
R1は、水素原子またはメチル基を表し、
R2は、それぞれ独立して、水素原子、炭素原子数1~4のアルキル基、または下記式(II):
で表されるアラルキル基を表し、
R3は、水素原子、前記式(II)で表されるアラルキル基、または下記式(III):
で表されるエポキシ基含有芳香族炭化水素基を表し、
mおよびnは、それぞれ0~4の整数であるが、m=n=0となることはなく、
ナフタレン構造部位への結合位置は、第1位~第8位の何れであってもよい。
本発明において用いられるマレイミド化合物(B)は、1分子中に1個以上のマレイミド基を有する化合物であれば、特に制限なく使用することができる。例えば、N-フェニルマレイミド、N-ヒドロキシフェニルマレイミド、ビス(4-マレイミドフェニル)メタン、2,2-ビス{4-(4-マレイミドフェノキシ)-フェニル}プロパン、ビス(3,5-ジメチル-4-マレイミドフェニル)メタン、ビス(3-エチル-5-メチル-4-マレイミドフェニル)メタン、ビス(3,5-ジエチル-4-マレイミドフェニル)メタン、ポリフェニルメタンマレイミド、もしくはこれらマレイミド化合物のプレポリマー、またはマレイミド化合物とアミン化合物とのプレポリマーなどが挙げられるが、これらに限定されるものではない。また、上記したマレイミド化合物は、単独でまたは2種以上を適宜組み合わせて使用してもよい。これらのなかでも、ビス(4-マレイミドフェニル)メタン、2,2-ビス{4-(4-マレイミドフェノキシ)-フェニル}プロパン、およびビス(3-エチル-5-メチル-4-マレイミドフェニル)メタンが好ましい。
本発明において用いられる硬化剤(C)は、エポキシ樹脂を硬化させるために用いられる通常の硬化剤であれば特に制限なく用いることができるが、これらのなかでも、耐熱性に優れ、とりわけ誘電率や誘電正接等の電気特性に優れるシアン酸エステル樹脂(C1)や、低吸水性かつ高耐熱性に優れるフェノール樹脂(C2)を好適に使用することができる。
本発明において用いられる無機充填剤(D)は、電気配線板用の樹脂組成物に通常用いられる無機充填剤であれば特に制限なく用いることができる。例えば、天然シリカ、溶融シリカ、アモルファスシリカ、中空シリカ等のシリカ類、ベーマイト、酸化モリブデン、モリブデン酸亜鉛等のモリブデン化合物、アルミナ、タルク、焼成タルク、マイカ、ガラス短繊維、球状ガラス(EガラスやTガラス、Dガラスなどのガラス微粉末類)等が挙げられるが、これらに限定されるものではない。上記の無機充填剤は、単独でまたは2種以上を適宜組み合わせて使用してもよい。
本発明による樹脂組成物は、上記した成分以外にも、必要に応じて他の成分を含んでいてもよい。例えば、硬化速度を適宜調節するために、硬化促進剤が含まれていてもよい。硬化促進剤としては、エポキシ樹脂、シアン酸エステル樹脂、フェノール樹脂等の硬化促進剤として一般に使用されるものであれば、特に制限なく使用することができる。例えば、銅、亜鉛、コバルト、ニッケル等の有機金属塩類、イミダゾール類およびその誘導体、第3級アミン等が挙げられるが、これらに限定されるものではない。また、上記した硬化促進剤は、単独でまたは2種以上を適宜組み合わせて使用してもよい。
本発明によるプリプレグは、上記した樹脂組成物を、基材に含浸または塗布したものである。基材としては、各種プリント配線板材料に用いられている公知のものを使用することができる。例えば、Eガラス、Dガラス、Sガラス、NEガラス、Tガラス、Qガラス等のガラス繊維、もしくはガラス以外の無機繊維、または、ポリイミド、ポリアミド、ポリエステルなどの有機繊維が挙げられ、使用用途や性能によって適宜選択できる。これらの基材の中でも、面方向の膨張率とドリル加工性とのバランスに優れるEガラスのガラス繊維を使用することがより好ましい。
本発明による積層板は、上記したプリプレグを積層し、成形(硬化)したものである。積層板は、上記したプリプレグを1枚または2枚以上を重ね合わせ、所望によりその片面または両面に、銅やアルミニウムなどの金属箔を配置して積層し、成形(硬化)することにより製造する。使用する金属箔としては、プリント配線板材料に用いられるものであれば、特に制限なく使用することができる。また、積層成形には、通常のプリント配線板用積層板および多層板の手法を採用できる。例えば、積層成形の条件としては、多段プレス、多段真空プレス、連続成形、オートクレーブ成形機などを使用し、温度は100~300℃、圧力は2~100kgf/cm2、加熱時間は0.05~5時間の範囲が一般的である。また、本発明においては、上記したプリプレグと、別途準備した内層用の配線板とを組み合わせて積層成形することにより、多層板とすることもできる。
温度計、攪拌器、滴下漏斗および還流冷却器を取りつけた反応器を予めブラインにより0~5℃に冷却しておき、そこへ塩化シアン7.47g(0.122mol)、35%塩酸9.75g(0.0935mol)、水76ml、および塩化メチレン44mlを仕込んだ。次いで、この反応器内の温度を-5~+5℃、pHを1以下に保ち、撹拌しながら、α-ナフトールアラルキル(上記式(VII)の化合物;SN:485、OH基当量:214g/eq.軟化点:86℃、新日鐵化学(株)製)を20g(0.0935mol)、およびトリエチルアミンを14.16g(0.14mol)を塩化メチレン92mlに溶解した溶液を、滴下漏斗により1時間かけて滴下した。滴下終了後、さらにトリエチルアミンを4.72g(0.047mol)15分間かけて滴下した。
2,2-ビス(4-シアナトフェニル)プロパン(CX:三菱ガス化学株式会社製)を75質量部、およびビス(3-エチル-5-メチル-4-マレイミジフェニル)メタン(BMI-70:ケイアイ化成株式会社製)を25質量部混合し、150℃で熔融して攪拌し、混合物の粘度が12poiseとなるまで反応させた後、これをメチルエチルケトンに溶解させ、ビスマレイミド・トリアジン樹脂を得た。なお、得られたビスマレイミド・トリアジン樹脂のシアネート当量は185g/eq.であった。
合成例1で得られたα-ナフトールアラルキル型シアン酸エステル樹脂を50質量部、ビス(3-エチル-5-メチル-4マレイミドフェニル)メタン(BMI-70、ケイアイ化成製)を10質量部、ポリオキシナフチレン型エポキシ樹脂(EXA-7311,エポキシ当量:277g/eq.、およびDIC株式会社製)を40質量部混合して、メチルエチルケトンで溶解させた。次いで、この溶液に、湿潤分散剤(disperbyk-161、ビッグケミージャパン株式会社製)を3質量部、球状溶融シリカ(SC2050MB、アドマテックス株式会社製)を120質量部、シリコーンレジンパウダー(トスパール120、モメンティブ・パフォーマンス・マテリアルズ・ジャパン合同会社製)を10質量部、およびオクチル酸亜鉛を0.02質量部、混合することによりワニスを調製した。得られたワニスをメチルエチルケトンで希釈し、厚さ0.1mmのEガラス織布に含浸塗工し、160℃で4分間加熱乾燥することにより、樹脂含有量50質量%のプリプレグを得た。
合成例2で得られたビスマレイミド・トリアジン樹脂を45質量部、ポリオキシナフチレン型エポキシ樹脂(EXA-7311,エポキシ当量:277g/eq.、DIC株式会社製)を40質量部、およびフェノールビフェニルアラルキル型エポキシ樹脂(NC-3000-FH,エポキシ当量:320g/eq.、日本化薬株式会社製)を15質量部混合して、メチルエチルケトンで溶解させた。次いで、この溶液に、湿潤分散剤(disperbyk-w903、ビッグケミージャパン株式会社製)を2質量部、モリブデン酸亜鉛をタルクにコートしたもの(ケムガード911C、モリブデン酸亜鉛担持:10質量%、シャーウィン・ウイリアムズ・ケミカルズ製)を10質量部、球状溶融シリカ(SC2050MR、アドマテックス株式会社製)を120質量部、およびオクチル酸亜鉛を0.02質量部、混合することによりワニスを調製した。得られたワニスをメチルエチルケトンで希釈し、厚さ0.1mmのEガラス織布に含浸塗工し、160℃で4分間加熱乾燥することにより、樹脂含有量50質量%のプリプレグを得た。
合成例2で得られたビスマレイミド・トリアジン樹脂を45質量部、合成例1で得られたα-ナフトールアラルキル型シアン酸エステル樹脂を10質量部、ポリオキシナフチレン型エポキシ樹脂(EXA-7311,エポキシ当量:277g/eq.、DIC株式会社製)を40質量部、フェノールノボラック型エポキシ樹脂(N770、エポキシ当量:190g/eq.、DIC株式会社製)を5質量部、モリブデン酸亜鉛をタルクにコートしたもの(ケムガード911C、モリブデン酸亜鉛担持:10質量%、シャーウィン・ウイリアムズ・ケミカルズ製)を10質量部、球状溶融シリカ(SC2050MB、アドマテックス株式会社製)を120質量部、およびオクチル酸亜鉛を0.02質量部、混合することによりワニスを調製した。得られたワニスをメチルエチルケトンで希釈し、厚さ0.1mmのEガラス織布に含浸塗工し、160℃で4分間加熱乾燥することにより、樹脂含有量50質量%のプリプレグを得た。
合成例2で得られたビスマレイミド・トリアジン樹脂を45質量部、2,2-ビス(4-シアネートフェニル)プロパンのプレポリマー(CA210:シアネート当量139、三菱ガス化学製)を10質量部、ポリオキシナフチレン型エポキシ樹脂(EXA-7311,エポキシ当量:277g/eq.、DIC株式会社製)を40質量部、フェノールビフェニルアラルキル型エポキシ樹脂(NC-3000-FH,エポキシ当量:320g/eq.、日本化薬株式会社製)を5質量部混合し、この混合溶液に、モリブデン酸亜鉛をタルクにコートしたもの(ケムガード911C、モリブデン酸亜鉛担持:10質量%、シャーウィン・ウイリアムズ・ケミカルズ製)を10質量部、シリコーンレジンで表面を被覆したシリコーンゴムパウダー(シリコーン複合パウダーKMP-600、信越化学工業株式会社製)を30質量部、球状溶融シリカ(SC2050MB、アドマテックス株式会社製)を60質量部、およびオクチル酸亜鉛を0.02質量部、混合することによりワニスを調製した。得られたワニスをメチルエチルケトンで希釈し、厚さ0.1mmのTガラスクロスに含浸塗工し、160℃で4分間加熱乾燥して、樹脂含有量50質量%のプリプレグを得た。
合成例1で得られたα-ナフトールアラルキル型シアン酸エステル樹脂を50質量部、ビス(3-エチル-5-メチル-4マレイミドフェニル)メタン(BMI-70、ケイアイ化成製)を10質量部、ポリオキシナフチレン型エポキシ樹脂(EXA-7311,エポキシ当量:277g/eq.、DIC株式会社製)を40質量部混合して、メチルエチルケトンで溶解させた。次いで、この溶液に、球状溶融シリカ(SC2050MB、アドマテックス株式会社製)を90質量部、シリコーンレジンパウダー(トスパール120、モメンティブ・パフォーマンス・マテリアルズ・ジャパン合同会社製)を10質量部、シリコーンレジンで表面を被覆したシリコーンゴムパウダー(シリコーン複合パウダーKMP-600、信越化学工業株式会社製)を15質量部、およびオクチル酸亜鉛を0.05質量部、混合することによりワニスを調製した。得られたワニスをメチルエチルケトンで希釈し、厚さ0.1mmのEガラス織布に含浸塗工し、160℃で4分間加熱乾燥することにより、樹脂含有量50質量%のプリプレグを得た。
合成例1で得られたα-ナフトールアラルキル型シアン酸エステル樹脂を35質量部、ビフェニルアラルキル型フェノール樹脂(KAYAHARD GPH-103、日本化薬株式会社製、水酸基当量:231g/eq.)を10質量部、ビス(3-エチル-5-メチル-4マレイミドフェニル)メタン(BMI-70、ケイアイ化成製)を10質量部、およびポリオキシナフチレン型エポキシ樹脂(EXA-7311,エポキシ当量:277g/eq.、DIC株式会社製)を45質量部混合して、メチルエチルケトンで溶解させた。次いで、この溶液に、湿潤分散剤(disperbyk-161、ビッグケミージャパン株式会社製)を3質量部、球状溶融シリカ(SC2500-SQ、アドマテックス株式会社製)を120質量部、およびオクチル酸亜鉛を0.05質量部、混合することによりワニスを調製した。得られたワニスをメチルエチルケトンで希釈し、厚さ0.1mmのEガラス織布に含浸塗工し、160℃で4分間加熱乾燥することにより、樹脂含有量50質量%のプリプレグを得た。
合成例1で得られたα-ナフトールアラルキル型シアン酸エステル樹脂を35質量部、ナフトールアラルキル樹脂(SN-495、新日鐵化学株式会社製、水酸基当量:236g/eq.)を10質量部、ビス(3-エチル-5-メチル-4マレイミドフェニル)メタン(BMI-70、ケイアイ化成製)を10質量部、ポリオキシナフチレン型エポキシ樹脂(EXA-7311,エポキシ当量:277g/eq.、DIC株式会社製)を45質量部混合して、メチルエチルケトンで溶解させた。次いで、この溶液に、湿潤分散剤(disperbyk-161、ビッグケミージャパン株式会社製)を3質量部、球状溶融シリカ(SC2500-SQ、アドマテックス株式会社製)を120質量部、およびオクチル酸亜鉛を0.05質量部、混合することによりワニスを調製した。得られたワニスをメチルエチルケトンで希釈し、厚さ0.1mmのEガラス織布に含浸塗工し、160℃で4分間加熱乾燥することにより、樹脂含有量50質量%のプリプレグを得た。
合成例1で得られたα-ナフトールアラルキル型シアン酸エステル樹脂を40質量部、ビス(3-エチル-5-メチル-4マレイミドフェニル)メタン(BMI-70、ケイアイ化成製)を10質量部、ナフタレン骨格型フェノール樹脂(EPICLON EXB-9500、DIC株式会社製、水酸基当量:153g/eq.)を10質量部、ポリオキシナフチレン型エポキシ樹脂(EXA-7311,エポキシ当量:277g/eq.、DIC株式会社製)を45質量部混合して、メチルエチルケトンで溶解させた。次いで、この溶液に、湿潤分散剤(disperbyk-161、ビッグケミージャパン株式会社製)を1質量部、球状溶融シリカ(SC2500-SQ、アドマテックス株式会社製)を120質量部、シリコーンレジンパウダー(トスパール120、モメンティブ・パフォーマンス・マテリアルズ・ジャパン合同会社製)を10質量部、およびオクチル酸亜鉛を0.05質量部、混合することによりワニスを調製した。得られたワニスをメチルエチルケトンで希釈し、厚さ0.1mmのEガラス織布に含浸塗工し、160℃で4分間加熱乾燥することにより、樹脂含有量50質量%のプリプレグを得た。
ナフトールアラルキル樹脂(SN-495、新日鐵化学株式会社製、水酸基当量:236g/eq.)を40質量部、ビス(3-エチル-5-メチル-4マレイミドフェニル)メタン(BMI-70、ケイアイ化成製)を20質量部、ポリオキシナフチレン型エポキシ樹脂(EXA-7311,エポキシ当量:277g/eq.、DIC株式会社製)を40質量部、湿潤分散剤(disperbyk-w903、ビッグケミー・ジャパン株式会社製)を3質量部、球状溶融シリカ(SC2500-SQ、アドマテックス株式会社製)を80質量部、シリコーンレジンパウダー(トスパール120、モメンティブ・パフォーマンス・マテリアルズ・ジャパン合同会社製)を10質量部、シリコーンレジンで表面を被覆したシリコーンゴムパウダー(シリコーン複合パウダーKMP-600、信越化学工業株式会社製)を15質量部、およびイミダゾール(2P4MZ、四国化成工業株式会社製)を0.03質量部、混合することによりワニスを調製した。得られたワニスをメチルエチルケトンで希釈し、厚さ0.1mmのEガラス織布に含浸塗工し、160℃で4分間加熱乾燥することにより、樹脂含有量50質量%のプリプレグを得た。
フェニルアラルキル型フェノール樹脂(KAYAHARD GPH-103、日本化薬株式会社製、水酸基当量:231g/eq.)を30質量部、アミノトリアジンノボラック樹脂(PHENOLITE LA-3018-50P)、水酸基当量:151g/eq.、DIC株式会社製)を10質量部、ビス(3-エチル-5-メチル-4マレイミドフェニル)メタン(BMI-70、ケイアイ化成製)を10質量部、ポリオキシナフチレン型エポキシ樹脂(EXA-7311,エポキシ当量:277g/eq.、DIC株式会社製)を50質量部、湿潤分散剤(disperbyk-161、ビッグケミージャパン株式会社製)を1質量部、球状溶融シリカ(SC2500-SQ、アドマテックス株式会社製)を100質量部、およびイミダゾール(2E4MZ、四国化成工業株式会社製)を0.03質量部、混合することによりワニスを調製した。得られたワニスをメチルエチルケトンで希釈し、厚さ0.1mmのEガラス織布に含浸塗工し、160℃で4分間加熱乾燥することにより、樹脂含有量50質量%のプリプレグを得た。
クレゾールノボラック型フェノール樹脂(KA-1165、DIC株式会社製、水酸基当量:119g/eq.)を20質量部、アミノトリアジンノボラック樹脂(PHENOLITE LA-3018-50P)、水酸基当量:151g/eq.、DIC株式会社製)を10質量部、ビス(3-エチル-5-メチル-4マレイミドフェニル)メタン(BMI-70、ケイアイ化成製)を10質量部、ポリオキシナフチレン型エポキシ樹脂(EXA-7311,エポキシ当量:277g/eq.、DIC株式会社製)を40質量部、フェノールビフェニルアラルキル型エポキシ樹脂(NC-3000-FH,エポキシ当量:320g/eq.、日本化薬株式会社製)を20質量部、湿潤分散剤(disperbyk-161、ビッグケミー・ジャパン株式会社製)を1質量部、球状溶融シリカ(SC2500-SQ、アドマテックス株式会社製)を100質量部、シリコーンレジンパウダー(トスパール120、モメンティブ・パフォーマンス・マテリアルズ・ジャパン合同会社製)を10質量部、シリコーンレジンで表面を被覆したシリコーンゴムパウダー(シリコーン複合パウダーKMP-600、信越化学工業株式会社製)を10質量部、およびイミダゾール(2E4MZ、四国化成工業株式会社製)を0.02質量部、混合することによりワニスを調製した。得られたワニスをメチルエチルケトンで希釈し、厚さ0.1mmのEガラス織布に含浸塗工し、160℃で4分間加熱乾燥することにより、樹脂含有量50質量%のプリプレグを得た。
ナフタレン骨格型フェノール樹脂(EPICLON EXB-9500、DIC株式会社製、水酸基当量:153g/eq.)を30質量部、アミノトリアジンノボラック樹脂(PHENOLITE LA-3018-50P)、水酸基当量:151g/eq.、DIC株式会社製)を10質量部、ビス(3-エチル-5-メチル-4マレイミドフェニル)メタン(BMI-70、ケイアイ化成製)を10質量部、ポリオキシナフチレン型エポキシ樹脂(EXA-7311,エポキシ当量:277g/eq.、DIC株式会社製)を40質量部、フェノールビフェニルアラルキル型エポキシ樹脂(NC-3000-FH,エポキシ当量:320g/eq.、日本化薬株式会社製)を10質量部、湿潤分散剤(disperbyk-161、ビッグケミー・ジャパン株式会社製)を1質量部、球状溶融シリカ(SC2500-SQ、アドマテックス株式会社製)を80質量部、シリコーンレジンパウダー(トスパール120、モメンティブ・パフォーマンス・マテリアルズ・ジャパン合同会社製)を10質量部、シリコーンレジンで表面を被覆したシリコーンゴムパウダー(シリコーン複合パウダーKMP-600、信越化学工業株式会社製)を15質量部、およびイミダゾール(2E4MZ、四国化成工業株式会社製)を0.02質量部、混合することによりワニスを調製した。得られたワニスをメチルエチルケトンで希釈し、厚さ0.1mmのEガラス織布に含浸塗工し、160℃で4分間加熱乾燥することにより、樹脂含有量50質量%のプリプレグを得た。
実施例1において使用したポリオキシナフチレン型エポキシ樹脂に代えて、フェノールビフェニルアラルキル型エポキシ樹脂(NC-3000-FH,エポキシ当量:320g/eq.、日本化薬株式会社製)を使用した以外は、実施例1と同様にしてプリプレグを得た。
実施例1において使用したポリオキシナフチレン型エポキシ樹脂に代えて、フェノールノボラック型エポキシ樹脂(N770、エポキシ当量:190g/eq.、DIC株式会社製)を使用した以外は、実施例1と同様にしてプリプレグを得た。
実施例1において使用したビス(3-エチル-5-メチル-4マレイミドフェニル)メタンに代えて、フェノールビフェニルアラルキル型エポキシ樹脂(NC-3000-FH,エポキシ当量:320g/eq.、日本化薬株式会社製)を使用した以外は、実施例1と同様にしてプリプレグを得た。
実施例1において使用したポリオキシナフチレン型エポキシ樹脂に代えて、フェノールビフェニルアラルキル型エポキシ樹脂(NC-3000-FH,エポキシ当量:320g/eq.、日本化薬株式会社製)を使用し、また、球状溶融シリカを添加しなかった以外は、実施例1と同様にしてプリプレグを得た。
実施例1において使用したポリオキシナフチレン型エポキシ樹脂に代えて、フェノールビフェニルアラルキル型エポキシ樹脂(NC-3000-FH,エポキシ当量:320g/eq.、日本化薬株式会社製)40質量部を使用し、また、球状溶融シリカの添加量を120質量部から250質量部に変更した以外は、実施例1と同様にしてプリプレグを得た。
実施例1において使用したポリオキシナフチレン型エポキシ樹脂に代えて、フェノールビフェニルアラルキル型エポキシ樹脂(NC-3000-FH,エポキシ当量:320g/eq.、日本化薬株式会社製)を使用し、また、球状溶融シリカの添加量を120質量部から200質量部に変更した以外は、実施例1と同様にしてプリプレグを得た。
実施例1において使用したポリオキシナフチレン型エポキシ樹脂に代えて、フェノールビフェニルアラルキル型エポキシ樹脂(NC-3000-FH,エポキシ当量:320g/eq.、日本化薬株式会社製)を使用し、また、球状溶融シリカの添加量を120質量部から180質量部に変更した以外は、実施例1と同様にしてプリプレグを得た。
実施例5において使用したポリオキシナフチレン型エポキシ樹脂に代えて、フェノールビフェニルアラルキル型エポキシ樹脂(NC-3000-FH,エポキシ当量:320g/eq.、日本化薬株式会社製)を使用した以外は、実施例5と同様にしてプリプレグを得た。
比較例8において使用した球状溶融シリカの添加量を90質量部から150質量部に変更した以外は、実施例5と同様にしてプリプレグを得た。
実施例8において使用したポリオキシナフチレン型エポキシ樹脂に代えて、フェノールビフェニルアラルキル型エポキシ樹脂(NC-3000-FH,エポキシ当量:320g/eq.、日本化薬株式会社製)を使用した以外は、実施例8と同様にしてプリプレグを得た。
実施例8において使用したポリオキシナフチレン型エポキシ樹脂に代えて、フェノールノボラック型エポキシ樹脂(N770、エポキシ当量:190g/eq.、DIC株式会社製)を使用した以外は、実施例8と同様にしてプリプレグを得た。
実施例9において使用したポリオキシナフチレン型エポキシ樹脂に代えて、フェノールビフェニルアラルキル型エポキシ樹脂(NC-3000-FH,エポキシ当量:320g/eq.、日本化薬株式会社製)を使用した以外は、実施例9と同様にしてプリプレグを得た。
実施例9において使用したポリオキシナフチレン型エポキシ樹脂に代えて、フェノールノボラック型エポキシ樹脂(N770、エポキシ当量:190g/eq.、DIC株式会社製)を使用した以外は、実施例9と同様にしてプリプレグを得た。
実施例12において使用したポリオキシナフチレン型エポキシ樹脂の添加量を40部から0質量部に変更し、フェノールビフェニルアラルキル型エポキシ樹脂の添加量を10質量部から50質量部に変更した以外は、実施例12と同様にしてプリプレグを得た。
実施例12において使用したポリオキシナフチレン型エポキシ樹脂に代えて、フェノールノボラック型エポキシ樹脂(N770、エポキシ当量:190g/eq.、DIC株式会社製)を使用した以外は、実施例12と同様にしてプリプレグを得た。
上記のようにして得られた各プリプレグをそれぞれ4枚重ね、その上下に12μm厚の電解銅箔(3EC-III、三井金属鉱業(株)製)を配置し、圧力30kgf/cm2、温度220℃で120分間の積層成形を行うことにより、絶縁層厚さ0.4mmの金属張り積層板を得た。なお、比較例5のプレプリグにおいては、金属張り積層板を積層成形することができなかった。
得られた金属張り積層板を用いて、難燃性、ガラス転移温度、熱膨張率、およびドリル加工性の評価を行った。難燃性、ガラス転移温度、および熱膨張率の評価は、金属張り積層板をエッチングして銅箔を除去したのちに、下記方法にて行った。
難燃性:UL94垂直燃焼試験法に準拠して評価した。
ガラス転移温度:JIS C6481に従い、動的粘弾性分析装置(TAインスツルメント製)で測定した。
熱膨張率:熱機械分析装置(TAインスツルメント製)で40℃から340℃まで毎分10℃で昇温し、60℃から120℃での面方向の線膨張係数を測定した。測定方向は積層板のガラスクロスの縦方向(Warp)を測定した。
加工機:日立ビアメカニクス(株)製 ND-1 V212
重ね数:金属箔張り積層板4枚
エントリーシート:三菱瓦斯化学(株)製 LE400
バックアップボード:利昌工業(株)製 PS-1160D
ドリルビット:ユニオンツール(株)製 MD MC 0.18×3.3 L508A)
回転数:160krpm
送り速度:0.8m/min
ヒット数:3000
得られた評価結果は、下記の表1および2に示される通りであった。
Claims (16)
- エポキシ樹脂(A)、マレイミド化合物(B)、硬化剤(C)、および無機充填剤(D)を含んでなる樹脂組成物であって、
前記エポキシ樹脂(A)が、下記式(I)で表されるものである、樹脂組成物:
Arは、それぞれ独立して、ナフチレン基またはフェニレン基を表すが、両基の少なくとも1つの水素原子が、炭素数1~4のアルキル基またはフェニレン基で置換されていてもよく、
R1は、水素原子またはメチル基を表し、
R2は、それぞれ独立して、水素原子、炭素原子数1~4のアルキル基、または下記式(II):
で表されるアラルキル基を表し、
R3は、水素原子、前記式(II)で表されるアラルキル基、または下記式(III):
で表されるエポキシ基含有芳香族炭化水素基を表し、
mおよびnは、それぞれ0~4の整数であるが、m=n=0となることはなく、
ナフタレン構造部位への結合位置は、第1位~第8位の何れであってもよい。)。 - 前記式(I)のArが、少なくとも1つの水素原子が、炭素原子1~4のアルキル基またはフェニレン基で置換されていてもよいナフチレン基である、請求項1に記載の樹脂組成物。
- 前記式(I)のmおよびnが、0~2の整数であるが、m=n=0となることはない、請求項1に記載の樹脂組成物。
- 前記硬化剤(C)が、シアン酸エステル樹脂(C1)を含んでなる、請求項1~4のいずれか一項に記載の樹脂組成物。
- 前記硬化剤(C)が、フェノール樹脂(C2)をさらに含んでなる、請求項1~6のいずれか一項に記載の樹脂組成物。
- 前記エポキシ樹脂(A)が、前記エポキシ樹脂(A)と前記マレイミド化合物(B)と前記硬化剤(C)との総量100質量部に対して、5~60質量部含まれてなる、請求項1~8のいずれか一項に記載の樹脂組成物。
- 前記マレイミド化合物(B)が、前記エポキシ樹脂(A)と前記マレイミド化合物(B)と前記硬化剤(C)との総量100質量部に対して、3~50質量部含まれてなる、請求項1~9のいずれか一項に記載の樹脂組成物。
- 前記シアン酸エステル樹脂(C1)が、シアン酸エステル樹脂(C1)のシアネート基数と前記エポキシ樹脂(A)のエポキシ基数との比(CN/Ep)が0.7~2.5の範囲となる量で含まれてなる、請求項5、6、9または10に記載の樹脂組成物。
- 前記フェノール樹脂(C2)が、フェノール樹脂のフェノール基数と前記エポキシ樹脂(A)のエポキシ基数との比(OH/Ep)が0.7~2.5の範囲となる量で含まれてなる、請求項7、8、9または10に記載の樹脂組成物。
- 前記無機充填材(D)が、前記エポキシ樹脂(A)と前記マレイミド化合物(B)と前記硬化剤(C)との総量100質量部に対して、50~200質量部含まれてなる、請求項1~12のいずれか一項に記載の樹脂組成物。
- 請求項1~13のいずれか一項に記載の樹脂組成物を、基材に含浸または塗布してなるプレプリグ。
- 請求項14に記載のプリプレグを硬化して得られる積層板。
- 請求項14に記載のプリプレグと金属箔とを積層し硬化してなる、金属箔張り積層板。
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KR20170133431A (ko) | 2017-12-05 |
JP5892340B2 (ja) | 2016-03-23 |
KR102002178B1 (ko) | 2019-10-21 |
KR20190086052A (ko) | 2019-07-19 |
EP2543687A1 (en) | 2013-01-09 |
TWI499632B (zh) | 2015-09-11 |
TW201141936A (en) | 2011-12-01 |
JPWO2011108524A1 (ja) | 2013-06-27 |
CN105315435A (zh) | 2016-02-10 |
SG10201501469PA (en) | 2015-04-29 |
KR20130018721A (ko) | 2013-02-25 |
SG183841A1 (en) | 2012-10-30 |
KR102107366B1 (ko) | 2020-05-07 |
CN102844350B (zh) | 2015-11-25 |
JP6071117B2 (ja) | 2017-02-01 |
EP2543687A4 (en) | 2017-05-24 |
EP2543687B1 (en) | 2020-01-15 |
CN102844350A (zh) | 2012-12-26 |
US20130045650A1 (en) | 2013-02-21 |
JP2016053168A (ja) | 2016-04-14 |
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