WO2009081601A1 - 熱硬化性樹脂組成物並びにこれを用いたプリプレグ及び積層板 - Google Patents
熱硬化性樹脂組成物並びにこれを用いたプリプレグ及び積層板 Download PDFInfo
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- WO2009081601A1 WO2009081601A1 PCT/JP2008/061256 JP2008061256W WO2009081601A1 WO 2009081601 A1 WO2009081601 A1 WO 2009081601A1 JP 2008061256 W JP2008061256 W JP 2008061256W WO 2009081601 A1 WO2009081601 A1 WO 2009081601A1
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- C08K5/00—Use of organic ingredients
- C08K5/49—Phosphorus-containing compounds
- C08K5/51—Phosphorus bound to oxygen
- C08K5/53—Phosphorus bound to oxygen bound to oxygen and to carbon only
- C08K5/5317—Phosphonic compounds, e.g. R—P(:O)(OR')2
- C08K5/5333—Esters of phosphonic acids
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- 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
- B32B15/092—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 comprising epoxy resins
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- 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
- B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
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- 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
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
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- 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
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- 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
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- 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
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- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
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- C08K3/32—Phosphorus-containing compounds
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- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
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- C08K5/00—Use of organic ingredients
- C08K5/49—Phosphorus-containing compounds
- C08K5/51—Phosphorus bound to oxygen
- C08K5/53—Phosphorus bound to oxygen bound to oxygen and to carbon only
- C08K5/5313—Phosphinic compounds, e.g. R2=P(:O)OR'
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- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J163/00—Adhesives based on epoxy resins; Adhesives based on derivatives of epoxy resins
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- C09J163/00—Adhesives based on epoxy resins; Adhesives based on derivatives of epoxy resins
- C09J163/04—Epoxynovolacs
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- 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
- B32B2457/08—PCBs, i.e. printed circuit boards
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- C—CHEMISTRY; METALLURGY
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- C08J2363/00—Characterised by the use of epoxy resins; Derivatives of epoxy resins
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- C—CHEMISTRY; METALLURGY
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- 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
- C08J2363/04—Epoxynovolacs
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/40—Additional features of adhesives in the form of films or foils characterized by the presence of essential components
- C09J2301/408—Additional features of adhesives in the form of films or foils characterized by the presence of essential components additives as essential feature of the adhesive layer
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/03—Use of materials for the substrate
- H05K1/0313—Organic insulating material
- H05K1/0353—Organic insulating material consisting of two or more materials, e.g. two or more polymers, polymer + filler, + reinforcement
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- 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
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31678—Of metal
Definitions
- the present invention balances all of metal foil adhesion, heat resistance, moisture resistance, flame retardancy, heat resistance with metal and dielectric properties (relative permittivity, dielectric loss tangent), and has low toxicity and safety and work.
- the present invention relates to a thermosetting resin composition excellent in the environment and suitably used for electronic parts and the like, and a prepreg and a laminate using the same.
- Thermosetting resins are widely used in fields that require high reliability, such as electronic parts, because their unique cross-linked structure exhibits high heat resistance and dimensional stability.
- the interlayer insulating material due to the recent demand for higher density, high copper foil adhesiveness for forming fine wiring and workability when drilling or punching is required.
- mounting of electronic parts using lead-free solder and flame resistance using halogen-free are required, and therefore higher heat resistance and flame resistance than conventional ones are required.
- thermosetting resin composition that is composed only of low-toxic components and does not generate toxic gases.
- Bismaleimide compounds are curing agents for thermosetting resins that have excellent dielectric properties, flame retardancy, and heat resistance, but since known bismaleimide compounds do not have curing reactivity with epoxy resins, epoxy curing systems When used as it is in the thermosetting resin, there is a problem that the heat resistance is insufficient. That is, although examples relating to thermosetting resins in which an adduct of a bismaleimide compound and an aminophenol is produced and used by heat-kneading without using an organic solvent (see, for example, Patent Document 1 and Patent Document 2) are disclosed. The yield of the adduct of bismaleimide compound and aminophenol is low, and when these are used as a copper clad laminate or an interlayer insulating material, heat resistance, workability and the like are insufficient.
- thermosetting resins which are thermosetting resins
- melamine resins and guanamine compounds which are thermosetting resins
- copper clad laminates and interlayer insulating materials using these thermosetting resins have the problem of contaminating various chemicals such as plating solutions when manufacturing electronic parts and the like.
- thermosetting resins using melamine resins or guanamine compounds are known (see, for example, Patent Documents 3 to 7).
- these are thermosetting resins obtained by condensing melamine resins and guanamine compounds with aldehydes such as formaldehyde, and although their solubility in organic solvents has been improved, the thermal decomposition temperature is low, and toxic decomposition Since it generates gas, the working environment is deteriorated, and the heat resistance to lead-free solder and the heat resistance with copper are insufficient in recent years.
- phosphorus-containing compounds that are commonly used as non-halogen flame retardants include soluble phosphate compounds such as red phosphorus and triphenyl phosphate, reactive phosphorus-containing compounds such as phosphorus-containing epoxy resins, and ammonium polyphosphate.
- soluble phosphate compounds such as red phosphorus and triphenyl phosphate
- reactive phosphorus-containing compounds such as phosphorus-containing epoxy resins
- ammonium polyphosphate ammonium polyphosphate
- the object of the present invention is a thermosetting resin composition balanced in all of metal foil adhesion, heat resistance, moisture resistance, flame resistance, heat resistance with metal, relative dielectric constant and dielectric loss tangent. And providing a prepreg and a laminate using the same.
- thermosetting resin composition containing a metal salt of a disubstituted phosphinic acid, a maleimide compound, a 6-substituted guanamine compound or dicyandiamide, and an epoxy resin. It has been found that the product meets the above-mentioned purpose and can be advantageously used as a thermosetting resin composition for laminates. The present invention has been completed based on such findings.
- thermosetting resin composition prepreg and laminate.
- A a metal salt of a disubstituted phosphinic acid,
- B a maleimide compound having an N-substituted maleimide group in the molecule,
- C a 6-substituted guanamine compound or dicyandiamide represented by the following general formula (1), and
- D A thermosetting resin composition comprising an epoxy resin having at least two epoxy groups in a molecule.
- R 1 represents a phenyl group, a methyl group, an allyl group, a vinyl group, a butyl group, a methoxy group or a benzyloxy group
- a maleimide compound having an N-substituted maleimide group in the molecule is (b-1) a maleimide compound having at least two N-substituted maleimide groups in one molecule; and (b-2) the following general formula (2)
- R 2 is each independently an acidic substituent selected from a hydroxyl group, a carboxy group and a sulfonic acid group
- R 3 is each independently a hydrogen atom, an aliphatic hydrocarbon group having 1 to 5 carbon atoms or a halogen atom.
- X is an integer from 1 to 5
- y is an integer from 0 to 4
- the sum of x and y is 5.
- R 2 , R 3 , x and y are the same as those in formula (2), and each R 4 independently represents a hydrogen atom, an aliphatic hydrocarbon group having 1 to 5 carbon atoms or a halogen atom. Is shown.
- R 2 , R 3 , x and y are the same as in general formula (2), and R 5 and R 6 are each independently a hydrogen atom, an aliphatic hydrocarbon group having 1 to 5 carbon atoms or Represents a halogen atom, and A represents an alkylene group, an alkylidene group, an ether group, a sulfonyl group, or a group represented by the following formula (5).
- thermosetting resin composition according to 1 or 2 on a base material and then forming a B-stage. 4).
- the laminate of 4 above, which is a metal-clad laminate obtained by heating and pressing after a metal foil is laminated on at least one of the prepregs.
- thermosetting resin composition of the present invention is balanced in all of metal foil adhesion, heat resistance, moisture resistance, flame resistance, heat resistance with metal, relative dielectric constant and dielectric loss tangent, Low toxicity and excellent safety and work environment. Therefore, according to the present invention, it is possible to provide a prepreg or a laminate having excellent performance using the thermosetting resin composition.
- FIG. 6 is a gas chromatograph showing the results of GPC analysis of a solution of maleimide compound (B-2) obtained in Production Example 2.
- FIG. 6 is a gas chromatograph showing the results of GPC analysis of a solution of maleimide compound (B-2) obtained in Production Example 2.
- thermosetting resin composition of the present invention comprises (A) a metal salt of a disubstituted phosphinic acid, (B) a maleimide compound having an N-substituted maleimide group in the molecule, (C) 6- It contains a substituted guanamine compound or dicyandiamide, and (D) an epoxy resin having at least two epoxy groups in one molecule.
- the metal salt of the disubstituted phosphinic acid as the component (A) can be represented by the following general formula (6).
- R 7 and R 8 are each independently an aliphatic hydrocarbon group or aromatic hydrocarbon group having 1 to 5 carbon atoms; M is Li, Na, K, Mg, Ca, Sr, Ba , Al, Ge, Sn, Sb, Bi, Zn, Ti, Zr, Mn, Fe and Ce, and r is an integer of 1 to 9.
- metal salts of disubstituted phosphinic acids can be produced by the method described in JP-A No. 2001-2686. It is also commercially available from Clariant, Germany. By using this metal salt of disubstituted phosphinic acid as an essential component, excellent flame retardancy, low dielectric properties and heat and humidity resistance can be imparted.
- R 9 and R 10 in the general formula (6) are preferably an aliphatic hydrocarbon group having 1 to 5 carbon atoms because a phosphorus content in the compound can be increased, and a methyl group, an ethyl group, or a propyl group is particularly preferable. preferable.
- maleimide compounds having an N-substituted maleimide group in the molecule of component (B) include N-phenylmaleimide and N-hydroxyphenylmaleimide as maleimide compounds having one N-substituted maleimide group in one molecule.
- maleimide compounds having two N-substituted maleimide groups in one molecule are preferred.
- maleimide compounds having two N-substituted maleimide groups in one molecule include bis (4-maleimidophenyl) methane, poly (maleimidophenyl) methane, bis (4-maleimidophenyl) ether, bis (4- Maleimidophenyl) sulfone, 3,3-dimethyl-5,5-diethyl-4,4-diphenylmethane bismaleimide, 4-methyl-1,3-phenylenebismaleimide, m-phenylenebismaleimide, 2,2-bis [4 -(4-maleimidophenoxy) phenyl] propane and the like.
- bis (4-maleimidophenyl) methane, m-phenylenebismaleimide and bis (4- Maleimidophenyl) sulfone is preferred and inexpensive because m-phenylenebismer More preferably imide and bis (4-maleimide phenyl) methane, bis terms of solubility in a solvent (4-maleimide phenyl) methane are particularly preferred.
- the component (B) includes (b-1) a maleimide compound having at least two N-substituted maleimide groups in one molecule as described above, and (b-2) an acid represented by the following general formula (2).
- a compound having an acidic substituent and an unsaturated maleimide group produced by reacting an amine compound having a substituent in an organic solvent is preferably used.
- R 2 is each independently an acidic substituent selected from a hydroxyl group, a carboxy group and a sulfonic acid group
- R 3 is each independently a hydrogen atom, an aliphatic hydrocarbon group having 1 to 5 carbon atoms or a halogen atom.
- X is an integer from 1 to 5
- y is an integer from 0 to 4
- the sum of x and y is 5.
- Examples of the amine compound represented by the general formula (2) include m-aminophenol, p-aminophenol, o-aminophenol, p-aminobenzoic acid, m-aminobenzoic acid, and o-aminobenzoic acid. Acid, o-aminobenzenesulfonic acid, m-aminobenzenesulfonic acid, p-aminobenzenesulfonic acid, 3,5-dihydroxyaniline, 3,5-dicarboxyaniline and the like.
- m-aminophenol, p-aminophenol, p-aminobenzoic acid, m-aminobenzoic acid and 3,5-dihydroxyaniline are preferable.
- o-aminophenol, m- Aminophenol and p-aminophenol are more preferred, and p-aminophenol is particularly preferred from the viewpoint of dielectric properties.
- the ratio of the maleimide compound (b-1) to the amine compound (b-2) used is the maleimide group equivalent of the maleimide compound (b-1) and —NH 2 equivalent of the amine compound (b-2).
- the equivalent ratio with the equivalent of 1.0 ⁇ (maleimide group equivalent) / (-NH 2 group equivalent) ⁇ 10.0 Is preferable, and the corresponding amount ratio is more preferably in the range of 2.0 to 10.0.
- the organic solvent used in this reaction is not particularly limited, but alcohol solvents such as ethanol, propanol, butanol, methyl cellosolve, butyl cellosolve, propylene glycol monomethyl ether, ketone solvents such as acetone, methyl ethyl ketone, methyl isobutyl ketone, and cyclohexanone. And ether solvents such as tetrahydrofuran, aromatic solvents such as toluene, xylene, and mesitylene, nitrogen-containing solvents such as dimethylformamide, dimethylacetamide, and N-methylpyrrolidone, and sulfur-containing solvents such as dimethylsulfoxide. Or 2 or more types can be mixed and used.
- alcohol solvents such as ethanol, propanol, butanol, methyl cellosolve, butyl cellosolve, propylene glycol monomethyl ether
- ketone solvents such as acetone, methyl ethyl
- cyclohexanone, propylene glycol monomethyl ether and methyl cellosolve are preferable from the viewpoint of solubility, and cyclohexanone and propylene glycol monomethyl ether are more preferable from the viewpoint of low toxicity, and they are highly volatile and remain at the time of production of the prepreg.
- Particularly preferred is propylene glycol monomethyl ether which hardly remains as a solvent.
- the amount of the organic solvent used is preferably 10 to 1000 parts by mass, preferably 100 to 500 parts by mass, per 100 parts by mass of the sum of the maleimide compound (b-1) and the amine compound (b-2). Is more preferable, and 200 to 500 parts by mass is particularly preferable. When the amount of the organic solvent used is 10 parts by mass or more, the solubility becomes sufficient, and when it is 1000 parts by mass or less, the reaction time is not too long.
- the reaction temperature is preferably 50 to 200 ° C., more preferably 100 to 160 ° C.
- the reaction time is preferably 0.1 to 10 hours, more preferably 1 to 8 hours.
- a reaction catalyst can be optionally used as necessary.
- the reaction catalyst is not particularly limited, and examples thereof include amines such as triethylamine, pyridine and tributylamine, imidazoles such as methylimidazole and phenylimidazole, and phosphorus-based catalysts such as triphenylphosphine. Can be used in combination.
- R 2 , R 3 , x and y are the same as those in formula (2), and each R 4 independently represents a hydrogen atom, an aliphatic hydrocarbon group having 1 to 5 carbon atoms or a halogen atom. Is shown.
- R 2 , R 3 , x and y are the same as in general formula (2), and R 5 and R 6 are each independently a hydrogen atom, an aliphatic hydrocarbon group having 1 to 5 carbon atoms or Represents a halogen atom, and A represents an alkylene group, an alkylidene group, an ether group, a sulfonyl group, or a group represented by the following formula (5).
- the component (C) is a 6-substituted guanamine compound or dicyandiamide represented by the following general formula (1).
- the 6-substituted guanamine compound represented by the general formula (1) include 2,4-diamino-6-phenyl-s-triazine called benzoguanamine and 2,4-diamino-6-methyl called acetoguanamine.
- -S-triazine, 2,4-diamino-6-vinyl-s-triazine, and the like are examples of the 6-substituted guanamine compound represented by the general formula (1).
- benzoguanamine and 2,4- Diamino-6-vinyl-s-triazine is more preferred, and benzoguanamine is particularly preferred from the viewpoint of low cost and solubility in a solvent.
- dicyandiamide is particularly preferable because it is excellent in storage stability of varnish, can have high heat resistance and low dielectric constant, and is inexpensive.
- a 6-substituted guanamine compound represented by the general formula (1) and dicyandiamide may be used in combination.
- R 1 represents a phenyl group, a methyl group, an allyl group, a vinyl group, a butyl group, a methoxy group, or a benzyloxy group.
- the component (D) is not particularly limited as long as it is an epoxy resin having two or more epoxy groups in one molecule.
- bisphenol A, bisphenol F, biphenyl, novolac, polyfunctional phenol, naphthalene examples thereof include glycidyl ethers, glycidyl ethers, glycidyl amines, and glycidyl esters such as alicyclic, alicyclic, and alcohols.
- One or two or more can be used in combination.
- bisphenol F type epoxy resin, dicyclopentadiene type epoxy resin, naphthalene ring-containing epoxy resin, biphenyl type epoxy resin, biphenyl aralkyl type epoxy resin in terms of dielectric properties, heat resistance, moisture resistance and metal foil adhesion Phenol novolac type epoxy resin and cresol novolac type epoxy resin are preferable, and dicyclopentadiene type epoxy resin, biphenyl aralkyl type epoxy resin, biphenyl type epoxy resin and phenol novolac type epoxy resin are preferable because they have dielectric properties and high glass transition temperature. More preferred are phenol novolac type epoxy resins and dicyclopentadiene type epoxy resins from the viewpoint of moisture and heat resistance.
- the content of the component (A) in the thermosetting resin composition of the present invention is 1 to 99 parts by mass with respect to 100 parts by mass of the total mass of the components (B) to (D) in terms of solid content. It is preferably 5 to 70 parts by mass, more preferably 5 to 50 parts by mass. When the content of the component (A) is 1 part by mass or more, flame retardancy is improved, and when it is 98 parts by mass or less, heat resistance and adhesiveness are not reduced.
- the contents of the components (B) to (D) in the thermosetting resin composition of the present invention are expressed as the mass in 100 parts by mass of the total mass of the components (B) to (D) in terms of solid content as follows: It is preferable to do so.
- Component (B) is preferably 1 to 98.9 parts by mass, more preferably 20 to 98.9 parts by mass, and particularly preferably 20 to 90 parts by mass. By setting the content of the component (B) to 1 part by mass or more, flame retardancy, adhesiveness, and dielectric properties are improved, and by setting the content to 98.9 mass or less, heat resistance is not lowered.
- the component (C) is preferably 0.1 to 50 parts by mass, more preferably 0.5 to 50 parts by mass, and particularly preferably 0.5 to 30 parts by mass. By setting the content of component (C) to 0.1 parts by mass or more, solubility and dielectric properties are improved, and by setting it to 50 parts by mass or less, flame retardancy does not decrease.
- Component (D) is preferably 1 to 80 parts by mass, more preferably 10 to 70 parts by mass, and particularly preferably 20 to 60 parts by mass. When the content of component (D) is 1 part by mass or more, heat resistance and flame retardancy are improved, and when used as a prepreg, moldability is improved. There is no decline.
- an epoxy resin curing agent or curing accelerator may be used in combination as the component (E).
- epoxy resin curing agents include acid anhydrides such as maleic anhydride and maleic anhydride copolymers, amine compounds such as diaminodiphenylmethane, and phenolic compounds such as phenol novolac and cresol novolac.
- epoxy resin curing accelerators include imidazoles and derivatives thereof, tertiary amines, and quaternary ammonium salts.
- a maleic anhydride copolymer with good heat resistance is preferable, and since it can reduce the dielectric constant, a polymerizable monomer composed of carbon atoms and hydrogen atoms such as styrene, ethylene, propylene, and isobutylene, and maleic anhydride
- An acid copolymer resin is more preferable, and a copolymer resin of styrene and maleic anhydride or isobutylene and maleic anhydride is particularly preferable from the viewpoint of solubility in a solvent and compatibility with a blended resin.
- the content of the component (E) is preferably 0 to 50 parts by mass, preferably 5 to 40 parts by mass with respect to 100 parts by mass of the total mass of the components (B) to (D) in terms of solid content. Is more preferable, and 5 to 30 parts by mass is particularly preferable. (E) By making content of a component into 50 mass parts or less, a moldability, adhesiveness, and a flame retardance do not fall.
- the thermosetting resin of the present invention can optionally contain an inorganic filler as the component (F).
- inorganic fillers include silica, mica, talc, short glass fiber or fine powder and hollow glass, antimony trioxide, calcium carbonate, quartz powder, aluminum hydroxide, magnesium hydroxide, and the like. Silica, aluminum hydroxide, and magnesium hydroxide are preferable from the viewpoint of dielectric properties, heat resistance, and flame retardancy, and silica and aluminum hydroxide are more preferable because they are inexpensive.
- the content of the component (F) is preferably 0 to 300 parts by mass, and preferably 20 to 200 parts by mass with respect to 100 parts by mass of the total mass of the components (B) to (D) in terms of solid content. Is more preferable, and 20 to 150 parts by mass is particularly preferable. (F) By making content of a component into 300 mass parts or less, a moldability and adhesiveness do not fall.
- thermosetting resin composition of the present invention may contain a known thermoplastic resin, elastomer, flame retardant, organic filler, etc., as long as the thermosetting properties of the resin composition are not impaired. Can do.
- thermoplastic resin include polytetrafluoroethylene, polyethylene, polypropylene, polystyrene, polyphenylene ether resin, phenoxy resin, polycarbonate resin, polyester resin, polyamide resin, polyimide resin, xylene resin, petroleum resin, silicone resin, and the like.
- elastomers examples include polybutadiene, polyacrylonitrile, epoxy-modified polybutadiene, maleic anhydride-modified polybutadiene, phenol-modified polybutadiene, carboxy-modified polyacrylonitrile, and the like.
- flame retardants include halogen-containing flame retardants containing bromine and chlorine, triphenyl phosphate, tricresyl phosphate, trisdichloropropyl phosphate, phosphazenes, red phosphorus and other phosphorus flame retardants, antimony trioxide, hydroxylation
- examples include inorganic flame retardants such as aluminum and magnesium hydroxide.
- phosphorus-based flame retardants that are non-halogen flame retardants, inorganic flame retardants, and the like are preferable from the viewpoint of the environment.
- organic fillers examples include organic powders such as silicone powder, polytetrafluoroethylene, polyethylene, polypropylene, polystyrene, and polyphenylene ether.
- an organic solvent can be arbitrarily used as a dilution solvent in the thermosetting resin composition of the present invention.
- the organic solvent is not particularly limited.
- ketone solvents such as acetone, methyl ethyl ketone, methyl isobutyl ketone, and cyclohexanone
- alcohol solvents such as methyl cellosolve
- ether solvents such as tetrahydrofuran
- aromatic solvents such as toluene, xylene, and mesitylene.
- the solvent include one type or a mixture of two or more types.
- thermosetting resin composition can optionally contain an ultraviolet absorber, an antioxidant, a photopolymerization initiator, a fluorescent whitening agent, an adhesion improver, and the like, and is not particularly limited.
- UV absorbers such as benzotriazoles, antioxidants such as hindered phenols and styrenated phenols, photopolymerization initiators such as benzophenones, benzyl ketals, and thioxanthones
- fluorescent whitening such as stilbene derivatives Agents, urea compounds such as urea silane, and adhesion improvers such as silane coupling agents.
- the prepreg of the present invention is obtained by impregnating or coating the thermosetting resin composition of the present invention on a base material and then forming a B-stage. That is, after impregnating or coating the thermosetting resin composition of the present invention on a substrate, it is semi-cured (B-staged) by heating or the like to produce the prepreg of the present invention.
- the prepreg of the present invention will be described in detail.
- the base material used for the prepreg of the present invention known materials used for various types of laminates for electrical insulating materials can be used.
- the material include inorganic fibers such as E glass, D glass, S glass, and Q glass, organic fibers such as polyimide, polyester, and polytetrafluoroethylene, and mixtures thereof.
- These base materials have, for example, shapes such as woven fabric, non-woven fabric, robink, chopped strand mat, and surfacing mat, but the material and shape are selected depending on the intended use and performance of the molded product, and if necessary, A single material or two or more materials and shapes can be combined.
- the thickness of the substrate is not particularly limited.
- a substrate having a thickness of about 0.03 to 0.5 mm can be used, and the substrate is surface-treated with a silane coupling agent or the like, or mechanically opened. Is suitable from the viewpoints of heat resistance, moisture resistance and processability.
- the temperature is usually 100 to 200 ° C. Can be heated and dried for 1 to 30 minutes and semi-cured (B-stage) to obtain the prepreg of the present invention.
- the laminate of the present invention is obtained by laminating the prepreg of the present invention. That is, for example, 1 to 20 prepregs of the present invention are laminated and laminated and formed with a structure in which a metal foil such as copper and aluminum is disposed on one or both sides thereof.
- a laminate plate for an electrical insulating material and a multilayer plate method can be applied.
- a multistage press, a multistage vacuum press, continuous molding, an autoclave molding machine or the like is used, and the temperature is 100 to 250 ° C. and the pressure is 0.2. Molding can be performed in a range of up to 10 MPa and a heating time of 0.1 to 5 hours.
- the prepreg of the present invention and the inner layer wiring board can be combined and laminated to produce a multilayer board.
- FIG. 1 The results of analyzing this solution by GPC (gel permeation chromatography, eluent: tetrahydrofuran) are shown in FIG. According to FIG. 1, the p-aminophenol peak appearing at an elution time of about 19 minutes was not observed, and peaks (B) and (C) derived from the addition reaction product were confirmed.
- peak (A) is a synthetic raw material bis (4-maleimidophenyl) methane
- peak (B) is a reaction product represented by the following chemical formula (7)
- peak (C) is represented by the following chemical formula (8) ) Is a side reaction product.
- Production Example 4 Production of maleimide compound (B-4) m-phenylene bismaleimide: 268.
- a reaction vessel having a volume of 1 liter capable of heating and cooling, equipped with a thermometer, a stirrer, and a moisture meter with a reflux condenser.
- m-aminophenol 109.0 g
- N, N-dimethylacetamide 377.0 g
- a solution of the maleimide compound (B-4) was obtained.
- Production Example 9 Production of maleimide compound (B-9) 2,2′-bis [4] was placed in a reaction vessel with a volume of 2 liters capable of being heated and cooled, equipped with a thermometer, a stirrer, and a moisture meter with a reflux condenser.
- p-aminophenol 54.5 g
- propylene glycol monomethyl ether 624.5 g
- Examples 1-20, Comparative Examples 1-8 As a metal salt of (A) component disubstituted phosphinic acid, aluminum salt of methylethylphosphinic acid [manufactured by Clariant Co., Ltd.] or aluminum salt of diethylphosphinic acid [manufactured by Clariant Co., Ltd.], maleimide compound of component (B) As examples, bis (4-maleimidophenyl) methane (manufactured by Daiwa Kasei Kogyo Co., Ltd.), 2,2′-bis [4- (4-maleimidophenoxy) phenyl] propane (manufactured by Daiwa Kasei Kogyo Co., Ltd.) or production examples As the maleimide compounds (B-1 to 10) obtained in 1 to 10 and the 6-substituted guanamine compound of the component (C), benzoguanamine (manufactured by Nippon Shokubai Co., Ltd.), aceto
- a prepreg obtained by impregnating or coating a base material with the thermosetting resin composition of the present invention, and a laminate produced by laminating the prepreg, have copper foil adhesion, glass transition temperature, solder heat resistance. Are balanced in all of properties, hygroscopicity, flame retardancy, relative dielectric constant and dielectric loss tangent, and are useful as printed wiring boards for electronic devices.
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Abstract
Description
また、近年の環境問題から、鉛フリーはんだによる電子部品の搭載やハロゲンフリーによる難燃化が要求され、そのため従来のものよりも高い耐熱性及び難燃性が必要とされる。さらに、製品の安全性や作業環境の向上化のため、毒性の低い成分のみで構成され、毒性ガス等が発生しない熱硬化性樹脂組成物が望まれている。
しかしながら、これらはメラミン樹脂やグアナミン化合物をホルムアルデヒド等のアルデヒド類を用いて縮合させた熱硬化性樹脂であり、有機溶剤への溶解性は改良されているものの、熱分解温度が低く、毒性の分解ガスを発生するため作業環境を悪化させたり、近年要求される鉛フリーはんだへの耐熱性や銅付き耐熱性に不足する。また微細な加工処理・配線形成において、銅箔接着性や可とう性、靭性が不足し、回路パターンが断線や剥離を生じたり、ドリルや打ち抜きにより穴あけ等の加工をする際にクラックが発生する等の不具合が生じる。
また、メチロール化グアナミン樹脂に関する事例(例えば、特許文献8参照)が開示されているが、これらも上記と同様に耐熱性や接着性、加工性等の問題がある。
さらに、有機溶媒を使用せずに製造されるビスマレイミド化合物とアミノ安息香酸の付加物、ベンゾグアナミンホルムアルデヒド縮合物等を使用する熱硬化性樹脂に関する事例(例えば、特許文献9参照)が開示されているが、熱分解温度が低く、近年要求される鉛フリーはんだへの耐熱性や銅付き耐熱性に不足する。
1.(A)2置換ホスフィン酸の金属塩、(B)分子中にN-置換マレイミド基を有するマレイミド化合物、(C)下記一般式(1)に示す6-置換グアナミン化合物又はジシアンジアミドおよび(D)1分子中に少なくとも2個のエポキシ基を有するエポキシ樹脂を含有することを特徴とする熱硬化性樹脂組成物。
4.上記3のプリプレグを積層成形して得られた積層板。
5.プリプレグの少なくとも一方に金属箔を重ねた後、加熱加圧成形して得られた金属張積層板である上記4の積層板。
このため本発明により、該熱硬化性樹脂組成物を用いて、優れた性能を有するプリプレグや積層板などを提供することができる。
本発明の熱硬化性樹脂組成物は、(A)2置換ホスフィン酸の金属塩、(B)分子中にN-置換マレイミド基を有するマレイミド化合物、(C)一般式(1)に示す6-置換グアナミン化合物又はジシアンジアミド、および(D)1分子中に少なくとも2個のエポキシ基を有するエポキシ樹脂を含有することを特徴とするものである。
先ず、(A)成分の2置換ホスフィン酸の金属塩は、下記の一般式(6)で表すことができる。
このような2置換ホスフィン酸の金属塩は、特開2001-2686号に記載の方法により製造できる。また、商業的にドイツ・クラリアント社から入手できる。この2置換ホスフィン酸の金属塩を必須成分とすることにより、優れた難燃性、低誘電特性及び耐熱耐湿性を付与することができる。
一般式(6)の金属Mとしては、化合物中のリン含有量を多くできることや耐湿性の点からAl又はNaが好ましく、低誘電特性の点からAlが特に好ましい。
また、一般式(6)のR9およびR10としては、化合物中のリン含有量を多くできることから炭素数1~5の脂肪族炭化水素基が好ましく、メチル基、エチル基又はプロピル基が特に好ましい。
1分子中に2個のN-置換マレイミド基を有するマレイミド化合物としては、例えば、ビス(4-マレイミドフェニル)メタン、ポリ(マレイミドフェニル)メタン、ビス(4-マレイミドフェニル)エーテル、ビス(4-マレイミドフェニル)スルホン、3,3-ジメチル-5,5-ジエチル-4,4-ジフェニルメタンビスマレイミド、4-メチル-1,3-フェニレンビスマレイミド、m-フェニレンビスマレイミド、2,2-ビス〔4-(4-マレイミドフェノキシ)フェニル〕プロパン等が挙げられ、これらの中で、反応率が高く、より高耐熱性化できるビス(4-マレイミドフェニル)メタン、m-フェニレンビスマレイミド及びビス(4-マレイミドフェニル)スルホンが好ましく、安価である点から、m-フェニレンビスマレイミド及びビス(4-マレイミドフェニル)メタンがより好ましく、溶剤への溶解性の点からビス(4-マレイミドフェニル)メタンが特に好ましい。
1.0≦(マレイミド基当量)/(-NH2基換算の当量)≦10.0
に示す範囲であることが好ましく、該当量比が2.0~10.0の範囲であることが更に好ましい。該当量比を上記範囲内とすることにより、溶剤への溶解性が不足したり、ゲル化を起こしたり、熱硬化性樹脂の耐熱性が低下することがない。
これらの有機溶媒の中で、溶解性の点からシクロヘキサノン、プロピレングリコールモノメチルエーテル及びメチルセロソルブが好ましく、低毒性である点からシクロヘキサノン及びプロピレングリコールモノメチルエーテルがより好ましく、揮発性が高くプリプレグの製造時に残溶媒として残りにくいプロピレングリコールモノメチルエーテルが特に好ましい。
有機溶媒の使用量は、(b-1)のマレイミド化合物と(b-2)のアミン化合物の総和100質量部当たり、10~1000質量部とすることが好ましく、100~500質量部とすることがより好ましく、200~500質量部とすることが特に好ましい。
有機溶媒の使用量を10質量部以上とすることにより溶解性が十分となり、1000質量部以下とすることにより、反応時間が長すぎることがなくなる。
この反応には、必要により任意に反応触媒を使用することができる。反応触媒は特に制限されないが、例えば、トリエチルアミン、ピリジン、トリブチルアミン等のアミン類、メチルイミダゾール、フェニルイミダゾール等のイミダゾール類、トリフェニルホスフィン等のリン系触媒等が挙げられ、1種又は2種以上を混合して使用できる。
これらの中で、誘電特性、耐熱性、耐湿性及び金属箔接着性の点からビスフェノールF型エポキシ樹脂、ジシクロペンタジエン型エポキシ樹脂、ナフタレン環含有エポキシ樹脂、ビフェニル型エポキシ樹脂、ビフェニルアラルキル型エポキシ樹脂、フェノールノボラック型エポキシ樹脂及びクレゾールノボラック型エポキシ樹脂が好ましく、誘電特性や高いガラス転移温度を有する点からジシクロペンタジエン型エポキシ樹脂、ビフェニルアラルキル型エポキシ樹脂、ビフェニル型エポキシ樹脂及びフェノールノボラック型エポキシ樹脂がより好ましく、耐湿耐熱性の点からフェノールノボラック型エポキシ樹脂及びジシクロペンタジエン型エポキシ樹脂が特に好ましい。
本発明の熱硬化性樹脂組成物中の(B)~(D)成分の含有量は、固形分換算の (B)~(D)成分の質量の総和100質量部中の質量として、次のようにすることが好ましい。
(B)成分は1~98.9質量部とすることが好ましく、20~98.9質量部とすることがより好ましく、20~90質量部とすることが特に好ましい。(B)成分の含有量を1質量部以上とすることにより、難燃性や接着性、誘電特性が向上し、また98.9質量以下とすることにより耐熱性が低下することがない。
(C)成分は0.1~50質量部とすることが好ましく、0.5~50質量部とすることがより好ましく、0.5~30質量部とすることが特に好ましい。(C)成分の含有量を0.1質量部以上とすることにより、溶解性や誘電特性が向上し、また50質量部以下とすることにより、難燃性が低下することない。
(D)成分は1~80質量部とすることが好ましく、10~70質量部とすることがより好ましく、20~60質量部とすることが特に好ましい。(D)成分の含有量を1 質量部以上とすることにより、耐熱性や難燃性、またプリプレグとして使用する際に成形性が向上し 、また80質量部以下とすることにより、誘電特性が低下することない。
(E)成分の含有量は、固形分換算の (B)~(D) 成分の質量の総和100質量部に対し、0~50質量部とすることが好ましく、5~40質量部とすることがより好ましく、5~30質量部とすることが特に好ましい。(E)成分の含有量を50質量部以下とすることにより、成形性や接着性、難燃性が低下することがない。
(F)成分の含有量は、固形分換算の (B)~(D) 成分の質量の総和100質量部に対し、0~300質量部とすることが好ましく、20~200質量部とすることがより好ましく、20~150質量部とすることが特に好ましい。(F)成分の含有量を300質量部以下とすることにより、成形性や接着性が低下することがない。
熱可塑性樹脂の例としては、ポリテトラフルオロエチレン、ポリエチレン、ポリプロピレン、ポリスチレン、ポリフェニレンエーテル樹脂、フェノキシ樹脂、ポリカーボネート樹脂、ポリエステル樹脂、ポリアミド樹脂、ポリイミド樹脂、キシレン樹脂、石油樹脂、シリコーン樹脂等が挙げられる。
基材の厚さは、特に制限されないが、例えば、約0.03~0.5mmのものを使用することができ、シランカップリング剤等で表面処理したもの又は機械的に開繊処理を施したものが、耐熱性や耐湿性、加工性の面から好適である。該基材に対する樹脂組成物の付着量が、乾燥後のプリプレグの樹脂含有率で、20~90質量%となるように、基材に含浸又は塗工した後、通常、100~200℃の温度で1~30分加熱乾燥し、半硬化(Bステージ化)させて、本発明のプリプレグを得ることができる。
なお、以下の実施例で得られた銅張積層板は、以下の方法で性能を測定・評価した。
銅張積層板を銅エッチング液に浸漬することにより、1cm幅の帯部分を残して銅箔を取り除いた評価基板を作製し、オートグラフ〔島津製作所(株)製AG-100C〕を用いて帯部分のピール強度を測定した。
(2)ガラス転移温度(Tg)の測定
銅張積層板を銅エッチング液に浸漬することにより銅箔を取り除いた5mm角の評価基板を作製し、TMA試験装置〔デュポン(株)製TMA2940〕を用い、評価基板の熱膨張特性を観察することにより評価した。
銅張積層板を銅エッチング液に浸漬することにより銅箔を取り除いた5cm角の評価基板を作製し、プレッシャー・クッカー試験装置〔平山製作所(株)製〕を用いて、121℃、0.2MPaの条件に4時間放置し、次いで温度288℃のはんだ浴に20秒間浸漬した後、評価基板の外観を観察することによりはんだ耐熱性を評価した。
(4)銅付き耐熱性(T-288)の評価
銅張積層板から5mm角の評価基板を作製し、TMA試験装置〔デュポン(株)製TMA2940〕を用い、288℃で評価基板の膨れが発生するまでの時間を測定することにより評価した。
銅張積層板を銅エッチング液に浸漬することにより銅箔を取り除いた評価基板を作製し、プレッシャー・クッカー試験装置〔平山製作所(株)製〕を用いて、121℃、0.2MPaの条件に4時間放置した後、評価基板の吸水率を測定した。
(6)難燃性の評価
銅張積層板を銅エッチング液に浸漬することにより銅箔を取り除いた評価基板から、長さ127mm、幅12.7mmに切り出した評価基板を作製し、UL94の試験法(V法)に準じて評価した。
(7)比誘電率及び誘電正接の測定
得られた銅張積層板を銅エッチング液に浸漬することにより銅箔を取り除いた評価基板を作製し、比誘電率測定装置(Hewllet・Packerd社製、HP4291B)を用いて、周波数1GHzでの比誘電率及び誘電正接を測定した。
温度計、攪拌装置、還流冷却管付き水分定量器の付いた加熱及び冷却可能な容積2リットルの反応容器に、ビス(4-マレイミドフェニル)メタン:358.0g、m-アミノフェノール:54.5g及びプロピレングリコールモノメチルエーテル:412.5gを入れ〔(マレイミド基当量)/(-NH2基換算の当量)=4.0〕、還流させながら5時間反応させてマレイミド化合物(B-1)の溶液を得た。
温度計、攪拌装置、還流冷却管付き水分定量器の付いた加熱及び冷却可能な容積2リットルの反応容器に、ビス(4-マレイミドフェニル)メタン:358.0g、p-アミノフェノール:54.5g及びプロピレングリコールモノメチルエーテル:412.5gを入れ〔(マレイミド基当量)/(-NH2基換算の当量)=4.0〕、還流させながら5時間反応させてマレイミド化合物(B-2)の溶液を得た。
この溶液を、GPC(ゲルバミエーションクロマトグラフィー、溶離液:テトラヒドロフラン)により分析した結果を図1に示す。
図1によれば、溶出時間が約19分付近に出現するp-アミノフェノールのピークが見られず、付加反応物に由来するピーク(B)及び(C)が確認された。ここでピーク(A)は合成原料のビス(4-マレイミドフェニル)メタンであり、ピーク(B)は下記の化学式(7)に示す反応生成物であり、ピーク(C)は下記の化学式(8)に示す副反応生成物である。
温度計、攪拌装置、還流冷却管付き水分定量器の付いた加熱及び冷却可能な容積2リットルの反応容器に、ビス(4-マレイミドフェニル)メタン:358.0g、p-アミノ安息香酸:27.4g及びN,N-ジメチルアセトアミド:385.4gを入れ〔(マレイミド基当量)/(-NH2基換算の当量)=10.0〕、140℃で5時間反応させてマレイミド化合物(B-3)の溶液を得た。
温度計、攪拌装置、還流冷却管付き水分定量器の付いた加熱及び冷却可能な容積1リットルの反応容器に、m-フェニレンビスマレイミド:268.0g、m-アミノフェノール:109.0g及びN,N-ジメチルアセトアミド:377.0gを入れ〔(マレイミド基当量)/(-NH2基換算の当量)=2.0〕、140℃で5時間反応させてマレイミド化合物(B-4)の溶液を得た。
温度計、攪拌装置、還流冷却管付き水分定量器の付いた加熱及び冷却可能な容積2リットルの反応容器に、3,3-ジメチル-5,5-ジエチル-4,4-ジフェニルメタンビスマレイミド:442.0g、p-アミノフェノール:54.5g及びプロピレングリコールモノメチルエーテル:496.5gを入れ〔(マレイミド基当量)/(-NH2基換算の当量)=4.0〕、還流させながら5時間反応させてマレイミド化合物(B-5)の溶液を得た。
温度計、攪拌装置、還流冷却管付き水分定量器の付いた加熱及び冷却可能な容積2リットルの反応容器に、3,3-ジメチル-5,5-ジエチル-4,4-ジフェニルメタンビスマレイミド:442.0g、o-アミノフェノール:54.5g及びプロピレングリコールモノメチルエーテル:496.5gを入れ〔(マレイミド基当量)/(-NH2基換算の当量)=4.0〕、還流させながら5時間反応させてマレイミド化合物(B-6)の溶液を得た。
温度計、攪拌装置、還流冷却管付き水分定量器の付いた加熱及び冷却可能な容積2リットルの反応容器に、ビス(4-マレイミドフェニル)スルフォン:408.0g、p-アミノフェノール:54.5g及びN,N-ジメチルアセトアミド:462.5gを入れ〔(マレイミド基当量)/(-NH2基換算の当量)=4.0〕、100℃で2時間反応させてマレイミド化合物(B-7)の溶液を得た。
温度計、攪拌装置、還流冷却管付き水分定量器の付いた加熱及び冷却可能な容積2リットルの反応容器に、ビス(4-マレイミドフェニル)エーテル:360.0g、p-アミノフェノール:54.5g及びN,N-ジメチルアセトアミド:414.5gを入れ〔(マレイミド基当量)/(-NH2基換算の当量)=4.0〕、100℃で2時間反応させてマレイミド化合物(B-8)の溶液を得た。
温度計、攪拌装置、還流冷却管付き水分定量器の付いた加熱及び冷却可能な容積2リットルの反応容器に、2,2'-ビス〔4-(4-マレイミドフェノキシ)フェニル〕プロパン:570.0g、p-アミノフェノール:54.5g及びプロピレングリコールモノメチルエーテル:624.5gを入れ〔(マレイミド基当量)/(-NH2基換算の当量)=4.0〕、120℃で2時間反応させてマレイミド化合物(B-9)の溶液を得た。
温度計、攪拌装置、還流冷却管付き水分定量器の付いた加熱及び冷却可能な容積2リットルの反応容器に、4-メチル-1,3-フェニレンビスマレイミド:282.0g、p-アミノフェノール:54.5g及びN,N-ジメチルアセトアミド:336.5gを入れ〔(マレイミド基当量)/(-NH2基換算の当量)=4.0〕、120℃で2時間反応させてマレイミド化合物(B-10)の溶液を得た。
(A)成分の2置換ホスフィン酸の金属塩として、メチルエチルホスフィン酸のアルミニウム塩〔クラリアント(株)製〕又はジエチルホスフィン酸のアルミニウム塩〔クラリアント(株)製〕、(B)成分のマレイミド化合物として、ビス(4-マレイミドフェニル)メタン〔大和化成工業(株)製〕、2,2'-ビス[4-(4-マレイミドフェノキシ)フェニル]プロパン〔大和化成工業(株)製〕又は製造例1~10で得られたマレイミド化合物(B-1~10)、(C)成分の6-置換グアナミン化合物として、ベンゾグアナミン〔日本触媒(株)製〕、アセトグアナミン、2,4-ジアミノ-6-ビニル-s-トリアジン又はジシアンジアミド〔関東化学(株)製〕、(D)成分のエポキシ樹脂として、フェノールノボラック型エポキシ樹脂〔D-1:大日本インキ化学工業(株)製、商品名:エピクロンN-770〕又はジシクロペンタジエン型エポキシ樹脂〔D-2:大日本インキ化学工業(株)製、商品名:HP-7200H〕、(E)成分のエポキシ樹脂硬化剤としてスチレンと無水マレイン酸の共重合樹脂〔E-1:サートマー(株)製、商品名:SMA-EF-40〕又はイソブチレンと無水マレイン酸の共重合樹脂〔E-2:クラレ(株)製、商品名:イソバン#600〕、(F)成分の無機充填剤として破砕シリカ〔F-1:福島窯業(株)製、商品名:F05-30、平均粒径10μm〕又は水酸化アルミニウム〔F-2:昭和電工(株)製、商品名:HD-360、平均粒径3μm〕、また、希釈溶剤にメチルエチルケトンを使用して第1表~第4に示す配合割合(質量部)で混合して樹脂分65質量%の均一なワニスを得た。
なお、比較例4~6では、(A)成分の2置換ホスフィン酸の金属塩に代えて、赤リン〔日本化学工業社製、商品名:ヒシガードTP-10F〕、トリフェニルホスフェート〔関東化学(株)製〕又はリン酸エステル〔大八化学社製、商品名:PX-200〕を使用した。
次に、上記ワニスを厚さ0.2mmのEガラスクロスに含浸塗工し、160℃で10分加熱乾燥して樹脂含有量55質量%のプリプレグを得た。
このプリプレグを4枚重ね、18μmの電解銅箔を上下に配置し、圧力2.45MPa、温度185℃で90分間プレスを行って、銅張積層板を得た。このようにして得られた銅張積層板を用いて、銅箔接着性(銅箔ピール強度)、ガラス転移温度、はんだ耐熱性、吸湿性(吸水率)、難燃性、比誘電率(1GHz)、誘電正接(1GHz)について前記の方法で測定・評価した。結果を第1表~第4表に示す。
一方、第4表から明らかなように、本発明の比較例では、銅箔接着性、ガラス転移温度、はんだ耐熱性、吸湿性、難燃性、比誘電率及び誘電正接の全てにバランスがとれたものは無く、いずれかの特性に劣っている。
Claims (5)
- (B)分子中にN-置換マレイミド基を有するマレイミド化合物が、(b-1)1分子中に少なくとも2個のN-置換マレイミド基を有するマレイミド化合物と、(b-2)下記一般式(2)に示す酸性置換基を有するアミン化合物との有機溶媒中での反応生成物である下記一般式(3)又は一般式(4)で示す酸性置換基と不飽和マレイミド基を有する化合物を含む請求項1に記載の熱硬化性樹脂組成物。
- 請求項1又は2に記載の熱硬化性樹脂組成物を、基材に含浸又は塗工した後、Bステージ化して得られたプリプレグ。
- 請求項3に記載のプリプレグを積層成形して得られた積層板。
- プリプレグの少なくとも一方に金属箔を重ねた後、加熱加圧成形して得られた金属張積層板である請求項4に記載の積層板。
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JP2016210915A (ja) * | 2015-05-11 | 2016-12-15 | 日立化成株式会社 | 熱硬化性絶縁樹脂組成物、並びにそれを用いた支持体付絶縁フィルム、プリプレグ、積層板及び多層プリント配線板 |
WO2016194927A1 (ja) * | 2015-06-02 | 2016-12-08 | 日立化成株式会社 | 熱硬化性樹脂組成物、プリプレグ、積層板及びプリント配線板 |
JPWO2016194927A1 (ja) * | 2015-06-02 | 2018-03-22 | 日立化成株式会社 | 熱硬化性樹脂組成物、プリプレグ、積層板及びプリント配線板 |
WO2018105071A1 (ja) * | 2016-12-07 | 2018-06-14 | 日立化成株式会社 | 熱硬化性樹脂組成物及びその製造方法、プリプレグ、積層板並びにプリント配線板 |
WO2018105070A1 (ja) * | 2016-12-07 | 2018-06-14 | 日立化成株式会社 | 樹脂ワニス、プリプレグ、積層板及びプリント配線板 |
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CN109071778B (zh) * | 2016-12-07 | 2019-12-10 | 日立化成株式会社 | 热固化性树脂组合物及其制造方法、预浸渍体、层叠板以及印制线路板 |
US10940674B2 (en) | 2016-12-07 | 2021-03-09 | Showa Denko Materials Co., Ltd. | Resin varnish, prepreg, laminate, and printed wiring board |
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Also Published As
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TW200927808A (en) | 2009-07-01 |
CN101910241B (zh) | 2012-06-20 |
TWI481652B (zh) | 2015-04-21 |
US10604641B2 (en) | 2020-03-31 |
EP2226349A1 (en) | 2010-09-08 |
TWI586731B (zh) | 2017-06-11 |
KR20100105839A (ko) | 2010-09-30 |
US20100279129A1 (en) | 2010-11-04 |
KR20160006248A (ko) | 2016-01-18 |
US20170022353A1 (en) | 2017-01-26 |
HK1151548A1 (en) | 2012-02-03 |
TW201510018A (zh) | 2015-03-16 |
CN101910241A (zh) | 2010-12-08 |
CN102675598A (zh) | 2012-09-19 |
EP2226349B1 (en) | 2014-01-15 |
EP2226349A4 (en) | 2012-11-21 |
JP2009155399A (ja) | 2009-07-16 |
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