WO2023048209A1 - 樹脂組成物、硬化物、樹脂シート、絶縁層、電気・電子部品、プリント配線板、及びエポキシ樹脂用硬化剤 - Google Patents
樹脂組成物、硬化物、樹脂シート、絶縁層、電気・電子部品、プリント配線板、及びエポキシ樹脂用硬化剤 Download PDFInfo
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- 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
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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
- C08G59/40—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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- 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
- C08G64/00—Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule
- C08G64/04—Aromatic polycarbonates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
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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
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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
Definitions
- the present invention relates to a resin composition containing a phenol carbonate resin and an epoxy resin. Furthermore, a cured product of the resin composition, a resin sheet and an insulating layer obtained using the resin composition, an electric/electronic component and a printed wiring board provided with the insulating layer, and a curing for an epoxy resin containing a phenol carbonate resin Regarding agents.
- the resin composition used for the substrate also has a well-balanced variety of properties such as heat resistance, adhesiveness, water resistance, low dielectric constant, low dielectric loss tangent, mechanical strength, film formability, low linear expansion, and flame resistance. There is a need for improved technology.
- a resin composition containing an epoxy resin is known as a resin composition used for multilayer circuit boards.
- the epoxy resin is generally used in combination with a curing agent, so various required properties can be achieved. Therefore, it is important to select an appropriate curing system.
- an epoxy resin is used as a lamination material for a multilayer circuit board, it must be able to achieve a low dielectric constant and a low dielectric loss tangent.
- Active esters are known as typical curing agents among curing agents. In the curing reaction of the epoxy resin and active esters, crosslinking can be achieved without generating polar functional groups such as secondary hydroxyl groups.
- Non-Patent Document 1 discloses a method for synthesizing a polycarbonate by reacting an epoxy group of a bifunctional epoxy resin and a carbonate group of diphenyl carbonate. A cured product can be produced without generating a polar functional group such as a secondary hydroxyl group.
- Patent Document 1 a carbonate resin using diphenyl carbonate, tricyclodecanedimethanol and bisphenol F is disclosed as a phenol carbonate resin that can be used as an epoxy resin curing agent and provides a cured product with a low dielectric constant and a low dielectric loss tangent.
- a synthesized example is described. It also describes that a laminate was obtained by preparing a resin varnish containing the carbonate resin and the epoxy resin, impregnating the resin varnish into a fibrous base material, and curing the resin varnish.
- Patent Document 2 discloses a resin composition containing an epoxy resin, a curing agent, a polycarbonate resin and an inorganic filler.
- the curing agent is an active ester
- one equivalent of the ester group reacts with one equivalent of the epoxy group.
- one equivalent of the carbonate group reacts with two equivalents of the epoxy group. In principle, a cured product with a high Tg can be obtained.
- the phenol carbonate resin described in Patent Document 1 and the polycarbonate resin described in Patent Document 2 are polymers of monomers having hydroxyl groups at both ends, and the hydroxyl group ends are high. Therefore, by cross-linking an epoxy resin with a phenol carbonate resin or a polycarbonate resin, a cured product having a relatively low dielectric constant and dielectric loss tangent can be obtained. However, since the reaction between the epoxy group and the hydroxyl group generates a secondary hydroxyl group, the dielectric constant and dielectric loss tangent of the resulting cured product may not be lowered. In addition, the cured products obtained by the techniques described in these patent documents have a problem of moisture resistance due to their high water absorption. In addition, the solvent solubility of the phenol carbonate resin and polycarbonate resin used as curing agents is not sufficiently high, and the moldability of the epoxy resin composition is also insufficient.
- a phenol carbonate resin containing a repeating unit having a viscosity average molecular weight within a specific range and having a specific structure is used as a curing agent.
- the above problem can be solved by blending such that the molar ratio of the epoxy group of the epoxy resin to the terminal hydroxyl group of the phenol carbonate resin (epoxy group/terminal hydroxyl group) is within a specific range. That is, the gist of the present invention resides in the following.
- a 1 and A 2 are each independently a group represented by the following formula (2) or (3);
- X is a direct bond, an optionally substituted carbon a divalent hydrocarbon group of numbers 1 to 15, -O-, -S-, -SO-, -SO 2 -, -CO-, -OCO- or -COO-;
- n 1 and n 2 are Each is independently an integer from 1 to 50.
- R is each independently an alkyl group having 1 to 12 carbon atoms, an arylalkyl group having 7 to 12 carbon atoms, an alkoxy group having 1 to 12 carbon atoms, an alkoxy group having 1 to 12 carbon atoms, arylalkoxy group, aryl group having 6 to 12 carbon atoms, alkenyl group having 2 to 12 carbon atoms, arylalkenyl group having 8 to 12 carbon atoms, alkynyl group having 2 to 12 carbon atoms, arylalkynyl
- An electric/electronic component comprising the insulating layer of [11].
- a printed wiring board having the insulating layer according to [11].
- An epoxy resin curing agent containing a phenol carbonate resin (A)' is an epoxy resin curing agent having a viscosity average molecular weight (Mv) of 500 to 20,000 and a terminal aromatic hydrocarbon group content of 95% by mass or more.
- a resin composition containing a phenol carbonate resin and an epoxy resin that gives a cured product with a low dielectric constant, a low dielectric loss tangent and a high heat resistance.
- the resin composition it is possible to provide a cured product, an electrical/electronic component, and a printed wiring board.
- an epoxy resin curing agent containing a phenol carbonate resin it is possible to provide an epoxy resin curing agent containing a phenol carbonate resin.
- epoxy resin includes polymers containing repeating structures and epoxy compounds with a monomolecular structure (i.e., non-polymeric compounds), both of which are expressed as “epoxy resins" and are commercially available. There is something. Also, a mixture of two or more epoxy resins may be simply referred to as an "epoxy resin". Also in this specification, the term “epoxy resin” means any of a polymer containing a repeating structure, an epoxy compound having a monomolecular structure, and a mixture of two or more epoxy resins.
- the resin composition according to the first embodiment of the present invention is a resin composition containing a phenol carbonate resin (A) and an epoxy resin (B), wherein the epoxy resin for the terminal hydroxyl group of the phenol carbonate resin (A) It is characterized in that the epoxy group molar ratio (epoxy group/terminal hydroxyl group) of (B) is from 3.0 to 100,000.
- the resin composition according to the present embodiment provides a cured product with a low dielectric constant, a low dielectric loss tangent and a high heat resistance is not sufficiently clear, it is presumed to be due to the following mechanism. That is, the resin composition according to the present embodiment has a molar ratio of the epoxy group of the epoxy resin to the terminal hydroxyl group of the phenol carbonate resin (epoxy group/terminal hydroxyl group) within a certain range, so that the resin composition shown in Scheme 1 below at the time of heat curing. It is believed that two equivalents of the epoxy groups of the epoxy resin react with one equivalent of the carbonate groups of the phenol carbonate resin to form a high-density crosslinked structure without generating secondary hydroxyl groups. It is believed that a cured product with a low dielectric constant, a low dielectric loss tangent and a high heat resistance can be obtained by forming more of this crosslinked structure in the cured product.
- the molar ratio of the epoxy group of the epoxy resin (B) to the terminal hydroxyl group of the phenol carbonate resin (A) (epoxy group/terminal hydroxyl group) is 3.0 to 100,000.
- the lower limit of the molar ratio is preferably 15 or more, more preferably 30 or more, still more preferably 60 or more, still more preferably 100 or more, particularly preferably 130 or more, particularly preferably 130 or more, in terms of reactivity between the epoxy group and the carbonate group. is preferably 140 or more, most preferably 150 or more.
- the upper limit of the molar ratio is preferably 2,500 or less, more preferably 1,500 or less, and still more preferably 1,000 or less in terms of heat resistance of the cured product.
- the phenol carbonate resin (A) in the resin composition according to this embodiment preferably has a viscosity average molecular weight (Mv) of 500 to 100,000.
- the lower limit of Mv is more preferably 1,000 or more, still more preferably 1,500 or more, and particularly preferably 2,000 or more.
- the upper limit of Mv of the phenol carbonate resin (A) is more preferably 50,000 or less, still more preferably 20,000 or less, particularly preferably 10,000 or less, and most preferably 8,000. It is below. By setting the Mv of the phenol carbonate resin (A) to the above upper limit or less, the solvent solubility tends to increase.
- the constituent units of the phenol carbonate resin (A) are not particularly limited, but preferably contain repeating units represented by the following formula (1).
- a 1 and A 2 are each independently a group represented by formula (2) or (3), X is a direct bond, optionally substituted, and has 1 to 15 carbon atoms a divalent hydrocarbon group of -O-, -S-, -SO-, -SO 2 -, -CO-, -OCO- or -COO-, wherein n 1 and n 2 are Each is independently an integer from 1 to 50.
- At least one of A 1 and A 2 in formula (1) is a group represented by formula (2) from the viewpoint of improving solvent solubility, and both are groups represented by formula (2). It is even more preferable to have
- the positions of the bonds of the benzene ring in formula (2) and the naphthalene ring in formula (3) are not particularly limited. However, 1 and 4-positions are preferable in that Tg tends to be improved.
- 1,2, 1,3, 1,4, 1,5, 1,6, 1,7, 1,8, 2,3, 2 , 6th, 2nd, 7th, etc., but 1st, 2nd, 1,4th, 1,5th, 2,6th, 2,7th in that Tg tends to improve is preferred.
- X in formula (1) is a direct bond, an optionally substituted divalent hydrocarbon group having 1 to 15 carbon atoms, —O—, —S—, —SO—, —SO 2 — , -CO-, -OCO- or -COO-.
- divalent hydrocarbon groups having 1 to 15 carbon atoms include -CH 2 -, -CH(CH 3 )-, -C(CH 3 ) 2 -, -CHPh-, -C(CH 3 )Ph -, -CPh 2 -, 9,9-fluorenylene group, 1,1-cyclopropylene group, 1,1-cyclobutylene group, 1,1-cyclopentylene group, 1,1-cyclohexylene group, 3,3 ,5-trimethyl-1,1-cyclohexylene group, 1,1-cyclododecylene group, 1,2-ethylene group, 1,2-cyclopropylene group, 1,2-cyclobutylene group, 1,2-cyclopentylene group, 1,2-cyclohexylene group, 1,2-phenylene group, 1,3-propylene group, 1,3-cyclobutylene group, 1,3-cyclopentylene group, 1,3-cyclohexylene group, 1 ,3-phenylene group,
- X is preferably a direct bond, —CH 2 —, —CH(CH 3 )—, since the degree of freedom of rotation of the aromatic rings in A 1 and A 2 adjacent to X is reduced to increase chemical resistance.
- n 1 and n 2 in formula (1) are each independently an integer of 1 to 50, but are preferably 1 to 30 in terms of solvent solubility and compatibility with other resins tending to improve. Yes, more preferably 1-10.
- the substituents R are each independently an alkyl group having 1 to 12 carbon atoms, an arylalkyl group having 7 to 12 carbon atoms, an alkoxy group having 1 to 12 carbon atoms, a carbon arylalkoxy groups of 7 to 12 carbon atoms, aryl groups of 6 to 12 carbon atoms, alkenyl groups of 2 to 12 carbon atoms, arylalkenyl groups of 8 to 12 carbon atoms, alkynyl groups of 2 to 12 carbon atoms, and 8 to 12 carbon atoms.
- Alkyl groups, alkoxy groups and alkenyl groups are not limited to linear groups, and may have a branched structure or a cyclic structure. Moreover, the position and number of the double bond of the alkenyl group and the triple bond of the alkynyl group are not particularly limited.
- alkyl groups having 1 to 12 carbon atoms include the following. For example, methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, sec-butyl group, tert-butyl group, n-pentyl group, isopentyl group, neopentyl group, tert-pentyl group, cyclopentyl group, n-hexyl group, isohexyl group, cyclohexyl group, n-heptyl group, cycloheptyl group, methylcyclohexyl group, n-octyl group, cyclooctyl group, n-nonyl group, 3,3,5-trimethylcyclohexyl group, n- decyl group, cyclodecyl group, n-undecyl group, n-dodecyl group, cyclodo
- arylalkyl groups having 7 to 12 carbon atoms include the following. Examples include benzyl group, methylbenzyl group, dimethylbenzyl group, trimethylbenzyl group, naphthylmethyl group, phenethyl group, 2-phenylisopropyl group and the like.
- alkoxy groups having 1 to 12 carbon atoms include the following. For example, methoxy, ethoxy, n-propoxy, isopropoxy, n-butoxy, sec-butoxy, tert-butoxy, n-pentoxy, isopentoxy, neopentoxy, tert-pentoxy, cyclopentyl thoxy group, n-hexyloxy group, isohexyloxy group, cyclohexyloxy group, n-heptoxy group, cycloheptoxy group, methylcyclohexyloxy group, n-octyloxy group, cyclooctyloxy group, n-nonyloxy group, 3,3,5-trimethyl cyclohexyloxy group, n-decyloxy group, cyclodecyloxy group, n-undecyloxy group, n-dodecyloxy group, cyclododecyloxy group,
- Examples of the arylalkyloxy group having 7 to 12 carbon atoms include the following. Examples include benzyloxy, methylbenzyloxy, dimethylbenzyloxy, trimethylbenzyloxy, naphthylmethoxy, phenethyloxy, 2-phenylisopropoxy and the like.
- aryl groups having 6 to 12 carbon atoms include the following.
- alkenyl groups having 2 to 12 carbon atoms include the following.
- vinyl group 1-propenyl group, 2-propenyl group, 1-methylvinyl group, 1-butenyl group, 2-butenyl group, 3-butenyl group, 1,3-butandienyl group, cyclohexenyl group, cyclohexadienyl group groups, cinnamyl groups, naphthylvinyl groups, and the like.
- arylalkenyl groups having 8 to 12 carbon atoms include the following. Examples include a styryl group, a cinnamyl group, a naphthylvinyl group, and the like.
- alkynyl groups having 2 to 12 carbon atoms include the following. Examples include ethynyl group, 1-propynyl group, 2-propynyl group, 1-butynyl group, 2-butynyl group, 3-butynyl group and the like.
- arylalkynyl groups having 8 to 12 carbon atoms include the following. For example, phenylethynyl group, naphthylethynyl group and the like.
- the substituent R is preferably an alkyl group having 1 to 12 carbon atoms, more preferably an alkyl group having 1 to 6 carbon atoms, from the viewpoint of improving heat resistance due to better molecular packing. , and more preferably a methyl group.
- p represents an integer of 0 to 4, and is preferably 0 to 2 from the viewpoint of improving solvent solubility and increasing the glass transition temperature (Tg) of the cured product.
- Tg glass transition temperature
- q represents an integer of 0 to 6, and is preferably 0 to 2 from the viewpoint of improving solvent solubility and increasing the glass transition temperature (Tg) of the cured product.
- Tg glass transition temperature
- substitution position of R with respect to the aromatic ring in formulas (2) and (3) is not particularly limited, but a group represented by the following formula tends to reduce the dielectric loss tangent and is particularly preferred.
- the proportion of the repeating unit represented by the formula (1) is not particularly limited, but the phenol carbonate resin (A) is composed of 80 mol % or more, more preferably 90 mol % or more, still more preferably 95 mol % or more, and particularly preferably 100 mol %, of all the structural units.
- the phenol carbonate resin (A) is a copolymer containing repeating units with a plurality of different structures, regardless of whether the repeating unit consists of repeating units with a single structure or the structure represented by formula (1). May be combined.
- the phenol carbonate resin (A) is a copolymer
- the phenol carbonate resin (A) is represented by the following formula having a structure different from the repeating unit represented by the formula (1) and the repeating unit represented by the formula (1) More preferably, it contains a repeating unit represented by (4).
- a 3 and A 4 are each independently synonymous with A 1 above;
- Y is a direct bond or an optionally substituted divalent aromatic having 6 to 15 carbon atoms a hydrocarbon group or an optionally substituted divalent heteroaromatic hydrocarbon group having 6 to 15 carbon atoms;
- n 3 and n 4 are each independently an integer of 1 to 50 (provided that , A 3 , A 4 , n 3 and n 4 completely match the combination of A 1 , A 2 , n 1 and n 2 in formula (1)).
- an optionally substituted divalent aromatic hydrocarbon group having 6 to 15 carbon atoms or an optionally substituted divalent heteroaromatic hydrocarbon group having 6 to 15 carbon atoms phenylene group, naphthylene group, anthracenylene group, 2,7-fluorenylene group, 9,9-fluorenylene group, pyridylene group, thienylene group, furanylene group and the like.
- the 9,9-fluorenylene group is preferred because it tends to increase the Tg and decrease the dielectric loss tangent.
- n 3 and n 4 are each independently an integer of 1 to 50, preferably 1 to 30, more preferably 1, in that solvent solubility and compatibility with other resins tend to be improved. ⁇ 10.
- the carbonate equivalent of the phenol carbonate resin (A) is not particularly limited, but is preferably 100 g/eq or more, more preferably 110 g/eq or more, still more preferably 120 g/eq or more, and preferably 10,000 g/eq or less. It is preferably 5,000 g/eq or less, more preferably 1,000 g/eq or less, and particularly preferably 500 g/eq or less.
- the carbonate equivalent of the phenol carbonate resin (A) is at least the above lower limit, curing shrinkage tends to decrease, and impact resistance and weather resistance of the cured product of the resin composition tend to improve. Further, by setting the carbonate equivalent weight of the phenol carbonate resin (A) to the above upper limit or less, the crosslink density of the cured product of the resin composition tends to increase and the Tg tends to improve.
- the amount of terminal hydroxyl groups in the phenol carbonate resin (A) is not particularly limited, but is preferably 10 ppm or more, more preferably 50 ppm or more, still more preferably 100 ppm or more, and preferably 5,000 ppm or less, more preferably 1,000 ppm. 300 ppm or less, more preferably 300 ppm or less.
- the amount of terminal hydroxyl groups of the phenol carbonate resin (A) is at least the above lower limit, a sufficient curing rate can be obtained, and when it is at most the above upper limit, the dielectric constant and dielectric loss tangent of the cured product can be reduced.
- the terminal hydroxyl group content of the phenol carbonate resin (A) can be measured by the colorimetric method used in the examples described later.
- the glass transition temperature (Tg) of the phenol carbonate resin (A) is not particularly limited, but is preferably 70°C or higher, more preferably 100°C or higher, still more preferably 120°C or higher, and usually 250°C. or less, and may be 200° C. or less or 180° C. or less.
- a commercially available phenol carbonate resin (A) may be used. Moreover, when manufacturing, it can manufacture by the conventionally well-known polymerization method.
- the polymerization method may be either a solution polymerization method using phosgene or a melt polymerization method in which a diester carbonate and a hydroxy compound are reacted.
- a dihydroxy compound having a structure represented by the above formula (1) and other dihydroxy compounds used as necessary, such as a dihydroxy compound having a structure represented by formula (4) Melt polymerization methods in which the compound is reacted with a diester carbonate are preferred.
- Carbonic acid diesters used in the melt polymerization method one kind may be used alone, or two or more kinds may be mixed and used in an arbitrary combination and ratio.
- Carbonic acid diesters include, for example, aromatic carbonates and aliphatic carbonates.
- aromatic carbonates include diphenyl carbonate; substituted diphenyl carbonate such as ditolyl carbonate; and the like.
- aliphatic carbonates include dialkyl carbonates such as dimethyl carbonate, diethyl carbonate and di-t-butyl carbonate. Among these, aromatic carbonates are preferred, diphenyl carbonate or substituted diphenyl carbonate is more preferred, and diphenyl carbonate is particularly preferred.
- the diester carbonate is preferably used in a molar ratio of 0.90 to 1.10 with respect to all dihydroxy compounds including the dihydroxy compound represented by formula (1) used in the reaction. It is more preferred to use a molar ratio of 96-1.04. If the molar ratio of the diester carbonate used in the melt polymerization method is too small, the number of terminal hydroxyl groups in the produced polycarbonate resin increases, the thermal stability of the polymer deteriorates, and there is a tendency that the desired high molecular weight product cannot be obtained. be.
- the rate of the transesterification reaction will decrease under the same polymerization conditions, making it difficult to produce the phenol carbonate resin (A) having the desired viscosity average molecular weight. . Furthermore, the amount of carbonic acid diester remaining in the produced phenol carbonate resin (A) tends to increase, and the residual carbonic acid diester tends to cause odor during molding or molded products.
- the phenol carbonate resin (A) used in the present embodiment it is preferable to use an aromatic carbonate such as diphenyl carbonate as the carbonic acid diester.
- the phenol carbonate resin (A) to be produced is an aromatic hydrocarbon exemplified by the terminal group represented by the following formula (5) (hereinafter sometimes referred to as "phenyl group terminal") system terminal group (hereinafter sometimes referred to as "aromatic hydrocarbon group terminal").
- the ratio (T1/T2) of the number of aromatic hydrocarbon group terminals (T1) to the total number of terminals (T2) of the phenol carbonate resin (A) is preferably 0.20 or more, more preferably 0.25 or more, It is more preferably 0.30 or more, and usually 1.00 or less. If the ratio (T1/T2) of the number of aromatic hydrocarbon group terminals (T1) to the total number of terminals (T2) is excessively small, coloration increases under conditions where the polymerization reaction temperature, injection molding temperature, etc. are high. There is fear.
- the method for adjusting the ratio (T1/T2) of the number of aromatic hydrocarbon group terminals (T1) to the total number of terminals (T2) of the phenol carbonate resin within the above range is not particularly limited.
- the ratio (T1/T2) of the number of aromatic hydrocarbon group terminals (T1) in the phenol carbonate resin to the total number of terminals (T2) was measured by an NMR spectrometer using heavy chloroform to which TMS was added as a measurement solvent. It can be calculated by measuring 1 H-NMR spectrum.
- Alkali metal compounds and/or alkaline earth metal compounds are used as polymerization catalysts (transesterification catalysts) in melt polymerization.
- Basic compounds such as basic boron compounds, basic phosphorus compounds, basic ammonium compounds, and amine compounds can be used together with the alkali metal compounds and/or alkaline earth metal compounds. Particular preference is given to using only alkali metal compounds and/or alkaline earth metal compounds.
- alkali metal compounds used as polymerization catalysts include sodium hydroxide, potassium hydroxide, lithium hydroxide, cesium hydroxide, sodium hydrogen carbonate, potassium hydrogen carbonate, lithium hydrogen carbonate, cesium hydrogen carbonate, sodium carbonate, and potassium carbonate.
- alkaline earth metal compounds include calcium hydroxide, barium hydroxide, magnesium hydroxide, strontium hydroxide, calcium hydrogen carbonate, barium hydrogen carbonate, magnesium hydrogen carbonate, strontium hydrogen carbonate, calcium carbonate, barium carbonate, and magnesium carbonate.
- One of these alkali metal compounds and/or alkaline earth metal compounds may be used alone, or two or more thereof may be used in any combination and ratio.
- basic boron compounds used in combination with alkali metal compounds and/or alkaline earth metal compounds include tetramethylboron, tetraethylboron, tetrapropylboron, tetrabutylboron, trimethylethylboron, trimethylbenzylboron, trimethylphenyl Sodium salts, potassium salts, lithium salts of boron, triethylmethylboron, triethylbenzylboron, triethylphenylboron, tributylbenzylboron, tributylphenylboron, tetraphenylboron, benzyltriphenylboron, methyltriphenylboron, butyltriphenylboron, etc. , calcium salts, barium salts, magnesium salts, strontium salts and the like.
- Examples of basic phosphorus compounds include triethylphosphine, tri-n-propylphosphine, triisopropylphosphine, tri-n-butylphosphine, triphenylphosphine, tributylphosphine, and quaternary phosphonium salts.
- Examples of basic ammonium compounds include tetramethylammonium hydroxide, tetraethylammonium hydroxide, tetrapropylammonium hydroxide, tetrabutylammonium hydroxide, trimethylethylammonium hydroxide, trimethylbenzylammonium hydroxide, trimethylphenylammonium hydroxide, triethylmethylammonium hydroxide, triethylbenzylammonium hydroxide, triethylphenylammonium hydroxide, tributylbenzylammonium hydroxide, tributylphenylammonium hydroxide, tetraphenylammonium hydroxide, benzyltriphenylammonium hydroxide, methyltriphenylammonium hydroxide, butyltriphenylammonium hydroxide and the like.
- amine compounds include 4-aminopyridine, 2-aminopyridine, N,N-dimethyl-4-aminopyridine, 4-diethylaminopyridine, 2-hydroxypyridine, 2-methoxypyridine, 4-methoxypyridine, 2 -dimethylaminoimidazole, 2-methoxyimidazole, imidazole, 2-mercaptoimidazole, 2-methylimidazole, aminoquinoline and the like.
- Basic compounds such as basic boron compounds, basic phosphorus compounds, basic ammonium compounds, and amine compounds may be used alone, or two or more may be used in any combination and ratio. .
- the amount of the polymerization catalyst used is usually in the range of 0.1 to 100 ⁇ mol in terms of metal, per 1 mol of all the dihydroxy compounds used in the reaction. is preferably within the range of 0.5 to 50 ⁇ mol, more preferably within the range of 1 to 25 ⁇ mol. If the amount of the polymerization catalyst used is too small, there is a tendency that the polymerization activity required to produce a polycarbonate resin with a desired molecular weight cannot be obtained.
- Phenolic carbonate resins tend to be difficult to manufacture.
- the dihydroxy compound having the structure represented by the structural formula (1) may be supplied as a solid, or may be supplied in a molten state after being heated. Alternatively, it may be supplied as an aqueous solution.
- a method of reacting a dihydroxy compound having a structure represented by formula (1), an alicyclic dihydroxy compound, and optionally other dihydroxy compounds with a diester carbonate in the presence of a polymerization catalyst is usually carried out in a multistage process of two or more stages. Specifically, the first stage reaction is carried out at a temperature of 140 to 220° C., preferably 150 to 200° C., for 0.1 to 10 hours, preferably 0.5 to 3 hours. From the second stage onwards, the pressure in the reaction system is gradually lowered from the pressure in the first stage while the reaction temperature is raised. Specifically, the polycondensation reaction is carried out at a reaction system pressure of 200 Pa or less and a temperature range of 210 to 280°C.
- the form of the reaction may be batch type, continuous type, or a combination of batch type and continuous type.
- Epoxy resin (B) is not particularly limited, but bixylenol type epoxy resin, bisphenol A type epoxy resin, bisphenol C type epoxy resin, bisphenol F type epoxy resin, bisphenol S type epoxy resin, bisphenol AF type epoxy resin, dicyclopentadiene.
- the epoxy resin (B) is preferably an aromatic epoxy resin, more preferably an aromatic
- the weight ratio of the phenol carbonate resin (A) to the epoxy resin (B) is not particularly limited, but is usually 0.01 or more, preferably 0.1 or more, and more preferably 0.2 or more from the viewpoint of reactivity. , more preferably 0.4 or more.
- the weight ratio is preferably 100 or less, more preferably 20 or less, still more preferably 10 or less, and particularly preferably 5 or less from the viewpoint of storage stability.
- the resin composition according to this embodiment may contain a curing accelerator (C).
- the curing accelerator (C) is not particularly limited, but includes phosphorus-based curing accelerators, amine-based curing accelerators, imidazole-based curing accelerators, guanidine-based curing accelerators, metal-based curing accelerators, and the like.
- the curing accelerator (C) is preferably a phosphorus curing accelerator, an amine curing accelerator, an imidazole curing accelerator or a metal curing accelerator, more preferably an amine curing accelerator.
- the curing accelerator (C) may be used singly, or two or more thereof may be used in any combination and ratio.
- Phosphorus curing accelerators include, for example, triphenylphosphine, phosphonium borate compounds, tetraphenylphosphonium tetraphenylborate, n-butylphosphonium tetraphenylborate, tetrabutylphosphonium decanoate, (4-methylphenyl)triphenylphosphonium thiocyanate. , tetraphenylphosphonium thiocyanate, and butyltriphenylphosphonium thiocyanate, and triphenylphosphine and tetrabutylphosphonium decanoate are preferred.
- amine curing accelerators examples include trialkylamines such as triethylamine and tributylamine, 4-dimethylaminopyridine (DMAP), benzyldimethylamine, 2,4,6-tris(dimethylaminomethyl)phenol, 1, 8-diazabicyclo(5,4,0)-undecene and the like can be mentioned, with 4-dimethylaminopyridine and 1,8-diazabicyclo(5,4,0)-undecene being preferred, and 4-dimethylaminopyridine being more preferred.
- DMAP 4-dimethylaminopyridine
- benzyldimethylamine 2,4,6-tris(dimethylaminomethyl)phenol
- 1, 8-diazabicyclo(5,4,0)-undecene and the like can be mentioned, with 4-dimethylaminopyridine and 1,8-diazabicyclo(5,4,0)-undecene being preferred, and 4-dimethylaminopyr
- imidazole curing accelerators examples include 2-methylimidazole, 2-undecylimidazole, 2-heptadecylimidazole, 1,2-dimethylimidazole, 2-ethyl-4-methylimidazole, 1,2-dimethylimidazole, 2-ethyl-4-methylimidazole, 2-phenylimidazole, 2-phenyl-4-methylimidazole, 1-benzyl-2-methylimidazole, 1-benzyl-2-phenylimidazole, 1-cyanoethyl-2-methylimidazole, 1-cyanoethyl-2-undecylimidazole, 1-cyanoethyl-2-ethyl-4-methylimidazole, 1-cyanoethyl-2-phenylimidazole, 1-cyanoethyl-2-undecylimidazolium trimellitate, 1-cyanoethyl- 2-phenylimidazolium trimellitate, 2,4-d
- Guanidine curing accelerators include, for example, dicyandiamide, 1-methylguanidine, 1-ethylguanidine, 1-cyclohexylguanidine, 1-phenylguanidine, 1-(o-tolyl)guanidine, dimethylguanidine, diphenylguanidine, trimethylguanidine, Tetramethylguanidine, Pentamethylguanidine, 1,5,7-triazabicyclo[4.4.0]dec-5-ene, 7-methyl-1,5,7-triazabicyclo[4.4.0] Dec-5-ene, 1-methylbiguanide, 1-ethylbiguanide, 1-n-butylbiguanide, 1-n-octadecylbiguanide, 1,1-dimethylbiguanide, 1,1-diethylbiguanide, 1-cyclohexylbiguanide, 1 -allylbiguanide, 1-phenylbiguanide, 1-(o-tolyl)biguanide and
- metal-based curing accelerators include organometallic complexes or organometallic salts of metals such as cobalt, copper, zinc, iron, nickel, manganese, and tin.
- organometallic complexes include organocobalt complexes such as cobalt (II) acetylacetonate and cobalt (III) acetylacetonate; organocopper complexes such as copper (II) acetylacetonate; zinc (II) acetylacetonate; organic zinc complexes such as iron (III) acetylacetonate; organic iron complexes such as nickel (II) acetylacetonate; organic nickel complexes such as nickel (II) acetylacetonate; organic manganese complexes such as manganese (II) acetylacetonate; Examples of organic metal salts include zinc octoate, tin octoate, zinc naphthenate
- the content of the curing accelerator (C) is not particularly limited, it is preferably 0.001 parts by weight or more with respect to a total of 100 parts by weight of the phenol carbonate resin (A) and the epoxy resin (B). From the viewpoint of properties, it is more preferably 0.01 parts by weight or more, and still more preferably 0.1 parts by weight or more. In addition, it is preferably 5 parts by weight or less, more preferably 3 parts by weight or less, still more preferably 1 part by weight or less from the viewpoint of storage stability of the resin composition.
- the resin composition according to the present embodiment may contain a curing agent (hereinafter referred to as "other curing agent”) other than the phenol carbonate resin (A) within a range that does not impair the effects of the present invention.
- a curing agent hereinafter referred to as "other curing agent”
- Other curing agents are not particularly limited, but phenolic curing agents, naphthol curing agents, amide curing agents, active ester curing agents, benzoxazine curing agents, cyanate ester curing agents, carbodiimide curing agents, and Phenol carbonate resins other than phenol carbonate resin (A), etc. are mentioned.
- active ester curing agents active ester curing agents, phenolic curing agents, benzoxazine curing agents, cyanate ester curing agents, and carbodiimide curing agents are preferred, and active ester curing agents, phenolic curing agents and carbodiimide are more preferred.
- system curing agent Other curing agents may be used alone, or two or more of them may be used in any combination and ratio.
- the resin composition according to the present embodiment may be diluted by blending a solvent in order to appropriately adjust the viscosity of the resin composition during handling during coating film formation.
- the solvent is used to ensure handleability and workability in molding the resin composition, and there is no particular limitation on the amount used.
- solvent used to ensure handleability and workability in molding the resin composition, and there is no particular limitation on the amount used.
- solvent and the term “solvent” are used separately according to the mode of use, but the same type or different types may be used independently.
- Solvents that may be contained in the resin composition according to the present embodiment include, for example, acetone, methyl ethyl ketone (MEK), methyl isobutyl ketone, ketones such as cyclohexanone; esters such as ethyl acetate; glycol ethers such as ethylene glycol monomethyl ether; amides such as N,N-dimethylformamide and N,N-dimethylacetamide; alcohols such as methanol and ethanol; alkanes such as hexane and cyclohexane; aromatics such as toluene and xylene;
- the solvents listed above may be used alone, or two or more of them may be mixed and used in any combination and ratio.
- the resin composition according to the present embodiment contains components other than those listed above (hereinafter sometimes referred to as "other components”) for the purpose of further improving its functionality.
- other components include thermosetting resins other than epoxy resins, photo-curing resins, curing accelerators (excluding those included in “curing agents”), UV inhibitors, antioxidants, Coupling agents, plasticizers, fluxes, flame retardants, colorants, dispersants, emulsifiers, elasticity reducing agents, diluents, antifoaming agents, ion trapping agents, inorganic fillers, organic fillers, and the like.
- the method of curing the resin composition when curing the resin composition according to the present embodiment to obtain a cured product varies depending on the ingredients and the amount of the resin composition, but is usually 60 to 60 at 80 to 280 ° C.
- a heating condition of 360 minutes is mentioned.
- This heating is preferably a two-stage treatment of primary heating at 80 to 160° C. for 10 to 90 minutes and secondary heating at 120 to 200° C. for 60 to 150 minutes. It is preferable to further perform tertiary heating at 150 to 280° C. for 60 to 120 minutes in a blended system that exceeds the secondary heating temperature. Performing secondary heating and tertiary heating in this way is preferable from the viewpoint of reducing poor curing and residual solvent.
- the resin composition according to this embodiment can form a cured product having a low dielectric constant, a low dielectric loss tangent and a high heat resistance. Therefore, the resin composition according to the present embodiment can be suitably used for electrical/electronic parts, insulating layers of printed wiring boards and the like; semiconductor sealing materials; and the like.
- a second embodiment of the present invention is a resin sheet having a resin composition layer formed of the resin composition according to the first embodiment of the present invention.
- the resin sheet according to the present embodiment can form an insulating layer made of a cured product of the resin composition by curing the resin composition layer. Therefore, the resin sheet according to the present embodiment can be suitably used as a resin sheet for forming insulating layers of electronic/electronic parts, printed wiring boards, and the like.
- the thickness of the resin composition layer is not particularly limited, it is usually 50 ⁇ m or less, and from the viewpoint of thinning the printed wiring board, it is preferably 25 ⁇ m or less, more preferably 15 ⁇ m or less, still more preferably 13 ⁇ m or less, and particularly preferably 10 ⁇ m. Below, it is most preferably 8 ⁇ m or less, and usually 1.0 ⁇ m or more, and may be 1.5 ⁇ m or more or 2.0 ⁇ m or more.
- the resin sheet according to the present embodiment may be a sheet consisting only of a resin composition layer, or may be a sheet having a resin composition layer formed on a support.
- the support may be removed from the insulating layer by peeling after the insulating layer is formed. It may be used as part of a wiring board or the like.
- the support examples include plastic films, metal foils, release papers, etc.
- Plastic films and metal foils are preferred.
- Materials constituting the plastic film include, for example, polyesters such as polyethylene terephthalate (PET) and polyethylene naphthalate (PEN); polycarbonates; acrylic resins such as polymethyl methacrylate (PMMA); cyclic polyolefins; triacetyl cellulose (TAC); polyether sulfide; polyether ketone; polyimide; and the like, preferably polyethylene terephthalate or polyethylene naphthalate.
- PET polyethylene terephthalate
- PEN polyethylene naphthalate
- polycarbonates acrylic resins such as polymethyl methacrylate (PMMA); cyclic polyolefins; triacetyl cellulose (TAC); polyether sulfide; polyether ketone; polyimide; and the like, preferably polyethylene terephthalate or polyethylene naphthalate.
- TAC triace
- the support may be subjected to matte treatment, corona treatment, or antistatic treatment on the surface to be bonded to the resin composition layer.
- a release layer may be formed on the surface of the support that is to be bonded to the resin composition layer.
- the mold release agent it is possible to appropriately select and use known mold release agents such as alkyd resins, polyolefin resins, urethane resins, silicone resins, and the like.
- the thickness of the support is not particularly limited, it is preferably 5 to 75 ⁇ m, more preferably 10 to 60 ⁇ m.
- the thickness of the entire support including the release layer is preferably within the above range.
- the resin sheet according to this embodiment may contain other layers as necessary.
- Other layers include, for example, protective films.
- the protective film is usually provided on the surface of the resin composition layer that is not in contact with the support.
- the thickness of the protective film is not particularly limited, and is, for example, 1 to 40 ⁇ m.
- the method for producing the resin sheet is not particularly limited.
- a resin varnish obtained by dissolving a resin composition in an organic solvent is applied onto a support using a die coater or the like, and dried to form a resin composition layer. method.
- organic solvents examples include ketones such as acetone, methyl ethyl ketone (MEK) and cyclohexanone; esters such as ethyl acetate, butyl acetate and propylene glycol monomethyl ether acetate; carbitols such as cellosolve and butyl carbitol; toluene and xylene. dimethylformamide (DMF), N-methylpyrrolidone (NMP) and other amide solvents; An organic solvent may be used individually by 1 type, and may mix and use 2 or more types by arbitrary combinations and ratios.
- ketones such as acetone, methyl ethyl ketone (MEK) and cyclohexanone
- esters such as ethyl acetate, butyl acetate and propylene glycol monomethyl ether acetate
- carbitols such as cellosolve and butyl carbitol
- toluene and xylene
- Drying may be carried out by known methods such as heating and blowing hot air.
- the drying conditions are not particularly limited, but the resin composition layer is dried so that the content of the organic solvent is 10% by mass or less, preferably 5% by mass or less.
- the resin composition layer is formed by drying at 50 to 150° C. for 3 to 10 minutes. can do.
- the epoxy resin curing agent according to the third embodiment of the present invention contains a phenol carbonate resin (A)'.
- the epoxy resin curing agent according to the present embodiment can be used as a curing agent for curing the epoxy resin (B) in the first embodiment of the present invention. It can also be used as a curing agent for curing epoxy resins.
- the epoxy resin curing agent according to the present embodiment it is possible to obtain an epoxy resin cured product having a low dielectric constant, a low dielectric loss tangent and a high heat resistance.
- the epoxy resin curing agent according to the present embodiment includes other components, such as a curing accelerator which is an optional component of the resin composition according to the first embodiment of the present invention, as long as the effect of the present invention is not impaired.
- a solvent or the like may be contained.
- the phenol carbonate resin (A)' is obtained by changing the viscosity average molecular weight (Mv) and the amount of terminal aromatic hydrocarbon groups of the phenol carbonate resin (A) in the first embodiment of the present invention to specific ranges. That is, elements other than the Mv range and the terminal aromatic hydrocarbon group amount range of the phenol carbonate resin (A) '(e.g., Mv measurement method, structural unit, carbonate equivalent, terminal hydroxyl group amount, glass transition temperature, and production method, etc.) are the same as those for the phenol carbonate resin (A), including preferred embodiments thereof. Therefore, the elements other than the Mv range and the terminal aromatic hydrocarbon group amount range of the phenol carbonate resin (A)' are as described in the above item ⁇ Phenol carbonate resin (A)>, and the description of the item to invoke.
- Mv viscosity average molecular weight
- the amount of terminal aromatic hydrocarbon groups of the phenol carbonate resin (A) in the first embodiment of the present invention to specific ranges.
- the phenol carbonate resin (A)' has a viscosity average molecular weight (Mv) of 500 to 20,000.
- the lower limit of Mv is preferably 1,000 or more, more preferably 1,500 or more, and even more preferably 2,000 or more.
- Tg glass transition temperature
- the upper limit of Mv of the phenol carbonate resin (A)' is preferably 10,000 or less, more preferably 8,000 or less.
- the lower limit of the amount of terminal aromatic hydrocarbon groups in the phenol carbonate resin (A)' is not particularly limited, but is 95.0% by mass, preferably 96.0% by mass. Above, more preferably 97.0% by mass or more, still more preferably 98.0% by mass or more, particularly preferably 99.0% by mass or more. Most preferably, it is 99.5% by mass or more.
- the upper limit of the amount of terminal aromatic hydrocarbon groups in the phenol carbonate resin (A)' is not particularly limited, and is usually 100% by mass or less.
- the amount of terminal aromatic hydrocarbon groups of phenol carbonate resin (A)' is calculated by subtracting the amount of terminal hydroxyl groups from the total amount of terminal groups of phenol carbonate resin (A)'.
- Viscosity average molecular weight (Mv) of phenol carbonate resin The viscosity average molecular weight (Mv) of the phenol carbonate resin is measured using methylene chloride as a solvent and using an Ubbelohde viscosity tube (manufactured by Moritomo Rika Kogyo Co., Ltd.) at 20 ° C.
- Terminal hydroxyl group content of phenol carbonate resin was measured by a colorimetric method using titanium tetrachloride/acetic acid. Specifically, it was measured by the method described below. As a result, the amount of terminal hydroxyl groups measured by the colorimetric method using titanium tetrachloride/acetic acid in the examples can be measured.
- terminal hydroxyl group amount in the polycarbonate resin composition was calculated by dividing the product of the measured absorbance and the factor by the concentration of the measurement sample.
- a sample obtained by mixing the corresponding starting material dihydroxy compound according to the copolymerization ratio is prepared at a minimum of three concentrations, and from the data of the three or more points, After drawing a calibration curve, the amount of terminal hydroxyl groups is measured. Also, the detection wavelength is assumed to be 546 nm.
- Weight average molecular weight (Mw) and number average molecular weight (Mn) of epoxy resin TSK Standard Polystyrene F-128 (Mw: 1,090,000, Mn: 1,030,000), F -10 (Mw: 106,000, Mn: 103,000), F-4 (Mw: 43,000, Mn: 42,700), F-2 (Mw: 17,200, Mn: 16,900), Calibration using A-5000 (Mw: 6,400, Mn: 6,100), A-2500 (Mw: 2,800, Mn: 2,700), A-300 (Mw: 453, Mn: 387) A line was drawn and the weight average molecular weight (Mw) and number average molecular weight (Mn) were measured as polystyrene conversion values.
- Epoxy group/terminal hydroxyl group (weight of epoxy resin/epoxy equivalent)/(weight of phenol carbonate resin ⁇ amount of terminal hydroxyl group of phenol carbonate resin/17.0)
- C-1 N,N'-dimethylaminopyridine (DMAP), 5 wt% toluene solution
- Leveling agent S-651 Fluorosurfactant (nonionic type) manufactured by AGC Seimi Chemical Co., Ltd.
- the pressure inside the glass reactor was reduced to about 100 Pa (0.75 Torr), and then the pressure was restored to atmospheric pressure with nitrogen, which was repeated three times to replace the inside of the reactor with nitrogen.
- the external temperature of the reactor was set to 220° C., and the internal temperature of the reactor was gradually increased to dissolve the raw material mixture.
- the stirrer was then rotated at 100 rpm.
- the pressure inside the reactor was reduced from 101.3 kPa (760 Torr) to 13.0 kPa (760 Torr) in absolute pressure over 40 minutes while distilling off the phenol that was a by-product of the oligomerization reaction of the dihydroxy compound and DPC that took place inside the reactor.
- the pressure was reduced to 3 kPa (100 Torr).
- the pressure in the reactor was maintained at 13.3 kPa, and transesterification was carried out for 80 minutes while further distilling off phenol. Thereafter, the internal pressure of the reactor was reduced from 13.3 kPa (100 Torr) to 399 Pa (3 Torr) in terms of absolute pressure over 40 minutes to remove distilled phenol out of the system. Furthermore, the absolute pressure in the reactor was reduced to 70 Pa (about 0.5 Torr) to carry out a polycondensation reaction. The polycondensation reaction was terminated when the stirrer of the reactor reached a predetermined stirring power.
- the phenol carbonate resin (A-1) was extracted from the reactor into an aluminum container, and the solidified (A-1) was pulverized.
- Table 1 shows the Mv, terminal hydroxyl group content, terminal aromatic hydrocarbon group content, carbonate equivalent weight, and Tg of the phenol carbonate resin (A-1).
- the pressure inside the glass reactor was reduced to about 100 Pa (0.75 Torr), and then the pressure was restored to atmospheric pressure with nitrogen, which was repeated three times to replace the inside of the reactor with nitrogen.
- the external temperature of the reactor was set to 220° C., and the internal temperature of the reactor was gradually increased to dissolve the raw material mixture.
- the stirrer was then rotated at 100 rpm.
- the pressure inside the reactor was reduced from 101.3 kPa (760 Torr) to 13.0 kPa (760 Torr) in absolute pressure over 40 minutes while distilling off the phenol that was a by-product of the oligomerization reaction of the dihydroxy compound and DPC that took place inside the reactor.
- the pressure was reduced to 3 kPa (100 Torr).
- the pressure in the reactor was maintained at 13.3 kPa, and transesterification was carried out for 80 minutes while further distilling off phenol.
- the reactor external temperature was raised to 260° C., and the reactor internal pressure was reduced from 13.3 kPa (100 Torr) to 399 Pa (3 Torr) in absolute pressure over 40 minutes to remove the distilled phenol out of the system.
- the absolute pressure in the reactor was reduced to 70 Pa (about 0.5 Torr) to carry out a polycondensation reaction. The polycondensation reaction was terminated when the stirrer of the reactor reached a predetermined stirring power.
- the phenol carbonate resin (A-2) was extracted from the reactor into an aluminum container, and the solidified (A-2) was pulverized.
- Table 1 shows the Mv, terminal hydroxyl group content, terminal aromatic hydrocarbon group content, carbonate equivalent weight, and Tg of the phenol carbonate resin (A-2).
- Table 1 shows the Mv, terminal hydroxyl group content, terminal aromatic hydrocarbon group content, carbonate equivalent weight, and Tg of the obtained phenol carbonate resin (A-3).
- Example 2 The method described in Example 2 was followed except that a 4% by mass aqueous solution of cesium carbonate was added so that the amount of cesium carbonate was 60 ⁇ mol per 1 mol of all dihydroxy compounds to prepare a raw material mixture.
- Table 1 shows the Mv, terminal hydroxyl group content, terminal aromatic hydrocarbon group content, carbonate equivalent weight, and Tg of the obtained phenol carbonate resin (A-4).
- Example 2 60.71 g (about 0.196 mol), 1,1′-bi-2-naphthol (BN) 56.00 g (about 0.196 mol), DPC 108.93 g (about 0.5085 mol), and cesium carbonate as a catalyst
- BN 1,1′-bi-2-naphthol
- DPC 108.93 g about 0.5085 mol
- cesium carbonate was 64 ⁇ mol per 1 mol of all dihydroxy compounds to prepare a raw material mixture.
- Table 1 shows the Mv, terminal hydroxyl group content, terminal aromatic hydrocarbon group content, carbonate equivalent weight, and Tg of the obtained phenol carbonate resin (A-5).
- Example 2 60.71 g (about 0.196 mol), 1,1′-bi-2-naphthol (BN) 56.00 g (about 0.196 mol), DPC 108.93 g (about 0.5085 mol), and cesium carbonate as a catalyst
- BN 1,1′-bi-2-naphthol
- DPC 108.93 g about 0.5085 mol
- cesium carbonate was 64 ⁇ mol per 1 mol of all dihydroxy compounds to prepare a raw material mixture.
- Table 1 shows the Mv, terminal hydroxyl group content, terminal aromatic hydrocarbon group content, carbonate equivalent weight, and Tg of the obtained phenol carbonate resin (A-6).
- the pressure inside the glass reactor was reduced to about 100 Pa (0.75 Torr), and then the pressure was restored to atmospheric pressure with nitrogen, which was repeated three times to replace the inside of the reactor with nitrogen.
- the external temperature of the reactor was set to 220° C., and the internal temperature of the reactor was gradually increased to dissolve the raw material mixture.
- the stirrer was then rotated at 100 rpm.
- the pressure inside the reactor was reduced from 101.3 kPa (760 Torr) to 13.0 kPa (760 Torr) in absolute pressure over 40 minutes while distilling off the phenol that was a by-product of the oligomerization reaction of the dihydroxy compound and DPC that took place inside the reactor.
- the pressure was reduced to 3 kPa (100 Torr).
- the pressure in the reactor was maintained at 13.3 kPa, and transesterification was carried out for 80 minutes while further distilling off phenol.
- the temperature outside the reactor was raised to 280° C.
- the pressure inside the reactor was reduced from 13.3 kPa (100 Torr) to 399 Pa (3 Torr) in absolute pressure over 40 minutes, and the distilled phenol was removed from the system.
- the absolute pressure in the reactor was reduced to 70 Pa (about 0.5 Torr) to carry out a polycondensation reaction. The polycondensation reaction was terminated when the stirrer of the reactor reached a predetermined stirring power.
- the phenol carbonate resin (A-7) was extracted from the reactor into an aluminum container, and the solidified (A-7) was pulverized.
- Table 1 shows the Mv, terminal hydroxyl group content, terminal aromatic hydrocarbon group content, carbonate equivalent weight, and Tg of the obtained phenol carbonate resin (A-7).
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Abstract
Description
また、これらの特許文献に記載の技術により得られる硬化物は、吸水率が高いため、耐湿性に問題があった。加えて、硬化剤であるフェノールカーボネート樹脂やポリカーボネート樹脂の溶剤溶解性は十分に高いとはいえず、エポキシ樹脂組成物の成形加工性も不十分であった。
フェノールカーボネート樹脂(A)及びエポキシ樹脂(B)を含む樹脂組成物であって、
前記フェノールカーボネート樹脂(A)の末端水酸基に対する前記エポキシ樹脂(B)のエポキシ基のモル比(エポキシ基/末端水酸基)が、3.0~100,000である、樹脂組成物。
〔2〕
前記フェノールカーボネート樹脂(A)が、下記式(1)で表される繰り返し単位を含む、〔1〕に記載の樹脂組成物。
(式(1)中、A1及びA2は、それぞれ独立に下記式(2)又は(3)で表される基であり;Xは、直接結合、置換基を有していてもよい炭素数1~15の2価の炭化水素基、-O-、-S-、-SO-、-SO2-、-CO-、-OCO-又は-COO-であり;n1及びn2は、それぞれ独立に1~50の整数である。)
(式(2)及び(3)中、Rは、それぞれ独立に炭素数1~12のアルキル基、炭素数7~12のアリールアルキル基、炭素数1~12のアルコキシ基、炭素数7~12のアリールアルコキシ基、炭素数6~12のアリール基、炭素数2~12のアルケニル基、炭素数8~12のアリールアルケニル基、炭素数2~12のアルキニル基、炭素数8~12のアリールアルキニル基、ハロゲン原子、水酸基、カルボキシ基、スルホン基、アミノ基、シアノ基又はニトロ基であり;pは、0~4の整数であり;qは、0~6の整数であり;*は、結合位置である。)
〔3〕
前記フェノールカーボネート樹脂(A)の粘度平均分子量(Mv)が、500~100,000である、〔1〕又は〔2〕に記載の樹脂組成物。
〔4〕
前記フェノールカーボネート樹脂(A)が、さらに下記式(4)で表される繰り返し単位を含む、〔2〕に記載の樹脂組成物。
(式(4)中、A3及びA4は、それぞれ独立に前記式(1)中のA1と同義であり;Yは、直接結合、置換基を有していてもよい炭素数6~15の2価の芳香族炭化水素基又は置換基を有していてもよい炭素数6~15の2価の複素芳香族炭化水素基であり;n3及びn4は、それぞれ独立に1~50の整数である。)
〔5〕
前記フェノールカーボネート樹脂(A)のカーボネート当量が、100~10,000g/eqである、〔1〕~〔4〕のいずれかに記載の樹脂組成物。
〔6〕
前記エポキシ樹脂(B)に対する前記フェノールカーボネート樹脂(A)の重量比が、0.01以上100以下である、〔1〕~〔5〕のいずれかに記載の樹脂組成物。
〔7〕
さらに硬化促進剤(C)を含み、前記フェノールカーボネート樹脂(A)及び前記エポキシ樹脂(B)の合計100重量部に対する前記硬化促進剤(C)の含有量が、0.001~5重量部である、〔1〕~〔6〕のいずれかに記載の樹脂組成物。
〔8〕
前記硬化促進剤(C)が、リン系硬化促進剤、アミン系硬化促進剤、イミダゾール系硬化促進剤、及び金属系硬化促進剤からなる群より選ばれる1種以上である、〔7〕に記載の樹脂組成物。
〔9〕
〔1〕~〔8〕のいずれかに記載の樹脂組成物で形成された樹脂組成物層を有する、樹脂シート。
〔10〕
〔1〕~〔8〕のいずれかに記載の樹脂組成物を硬化してなる、硬化物。
〔11〕
〔1〕~〔8〕のいずれかに記載の樹脂組成物を硬化してなる、絶縁層。
〔12〕
〔11〕に記載の絶縁層を有する、電気・電子部品。
〔13〕
〔11〕に記載の絶縁層を有する、プリント配線板。
〔14〕
フェノールカーボネート樹脂(A)’を含むエポキシ樹脂用硬化剤であって、
前記フェノールカーボネート樹脂(A)’は、粘度平均分子量(Mv)が500~20,000であり、末端芳香族炭化水素基量が95質量%以上である、エポキシ樹脂用硬化剤。
なお、本明細書において「~」という表現を用いる場合、その前後の数値又は物性値を含む表現として用いるものとする。
本発明の第1の実施形態に係る樹脂組成物は、フェノールカーボネート樹脂(A)及びエポキシ樹脂(B)を含む樹脂組成物であって、該フェノールカーボネート樹脂(A)の末端水酸基に対する該エポキシ樹脂(B)のエポキシ基のモル比(エポキシ基/末端水酸基)が3.0~100,000であることを特徴とする。
つまり、本実施形態に係る樹脂組成物は、フェノールカーボネート樹脂の末端水酸基に対するエポキシ樹脂のエポキシ基のモル比(エポキシ基/末端水酸基)がある一定範囲にあることによって、熱硬化時に下記Scheme1に表されるように、フェノールカーボネート樹脂のカーボネート基1当量に対してエポキシ樹脂のエポキシ基が2当量反応し、2級水酸基を発生させずに高密度の架橋構造を形成すると考えられる。そして、この架橋構造を硬化物中により多く形成させることができることによって、低誘電率、低誘電正接及び高耐熱性の硬化物が得られると考えられる。
本実施形態に係る樹脂組成物において、フェノールカーボネート樹脂(A)の末端水酸基に対するエポキシ樹脂(B)のエポキシ基とのモル比(エポキシ基/末端水酸基)は、3.0~100,000である。当該モル比の下限は、エポキシ基とカーボネート基の反応性の点で、好ましくは15以上、より好ましくは30以上、さらに好ましくは60以上、さらにより好ましくは100以上、特に好ましくは130以上、殊更に好ましくは140以上、最も好ましくは150以上である。また、当該モル比の上限は、硬化物の耐熱性の点で、好ましくは2,500以下、より好ましくは1,500以下、さらに好ましくは1,000以下である。
[η]=1.23×10-4Mv0.83
フェノールカーボネート樹脂(A)は、その繰り返し単位が単一の構造の繰り返し単位からなるものであっても、式(1)で表される構造でも、それぞれ異なる複数の構造の繰り返し単位を含む共重合体でもよい。フェノールカーボネート樹脂(A)が共重合体の場合、フェノールカーボネート樹脂(A)は、式(1)で表される繰り返し単位及び式(1)で表される繰り返し単位とは異なる構造を有する下記式(4)で表される繰り返し単位を含むことがより好ましい。
中でも、重合触媒の存在下に、前述した式(1)で表される構造を有するジヒドロキシ化合物、及び必要に応じて用いられるその他のジヒドロキシ化合物、例えば式(4)で表される構造を有するジヒドロキシ化合物を、炭酸ジエステルと反応させる溶融重合法が好ましい。
これらの中でも、芳香族カーボネートが好ましく、ジフェニルカーボネート又は置換ジフェニルカーボネートがより好ましく、ジフェニルカーボネートが特に好ましい。
溶融重合法において使用する炭酸ジエステルのモル比が過度に小さいと、製造されたポリカーボネート樹脂の末端水酸基が増加し、ポリマーの熱安定性が悪化し、また所望する高分子量体が得られない傾向がある。一方、使用する炭酸ジエステルのモル比が過度に大きいと、同一重合条件下ではエステル交換反応の速度が低下し、所望する粘度平均分子量のフェノールカーボネート樹脂(A)の製造が困難となる傾向がある。さらに、製造されたフェノールカーボネート樹脂(A)中の残存する炭酸ジエステル量が増加する傾向があり、残存炭酸ジエステルが、成形時又は成形品の臭気の原因となる傾向がある。
芳香族炭化水素基末端数(T1)の全末端数(T2)に対する比(T1/T2)が過度に小さいと、重合反応温度や射出成形温度などが高温となる条件下において、着色が大きくなる虞がある。
具体的には、第1段目の反応は140~220℃、好ましくは150~200℃の温度で0.1~10時間、好ましくは0.5~3時間実施される。第2段目以降は、反応系の圧力を第1段目の圧力から徐々に下げながら反応温度を上げていき、同時に発生するフェノール等の芳香族モノヒドロキシ化合物を反応系外へ除きながら、最終的には反応系の圧力が200Pa以下で、210~280℃の温度範囲のもとで重縮合反応を行う。
重縮合反応における減圧において、温度と反応系内の圧力のバランスを制御することが重要である。特に、温度、圧力のどちらか一方でも早く過度に変化すると、未反応のモノマーが留出し、ジヒドロキシ化合物に対する炭酸ジエステルのモル比が変化し、重合度が低下することがある。
反応の形式は、バッチ式、連続式、あるいはバッチ式と連続式の組み合わせのいずれの方法でもよい。
エポキシ樹脂(B)は特に限定されないが、ビキシレノール型エポキシ樹脂、ビスフェノールA型エポキシ樹脂、ビスフェノールC型エポキシ樹脂、ビスフェノールF型エポキシ樹脂、ビスフェノールS型エポキシ樹脂、ビスフェノールAF型エポキシ樹脂、ジシクロペンタジエン型エポキシ樹脂、トリスフェノール型エポキシ樹脂、ナフトールノボラック型エポキシ樹脂、フェノールノボラック型エポキシ樹脂、tert-ブチル-カテコール型エポキシ樹脂、ナフタレン型エポキシ樹脂、ナフトール型エポキシ樹脂、アントラセン型エポキシ樹脂、グリシジルアミン型エポキシ樹脂、グリシジルエステル型エポキシ樹脂、クレゾールノボラック型エポキシ樹脂、ビフェニル型エポキシ樹脂、線状脂肪族エポキシ樹脂、ブタジエン構造を有するエポキシ樹脂、脂環式エポキシ樹脂、複素環式エポキシ樹脂、スピロ環含有エポキシ樹脂、シクロヘキサン型エポキシ樹脂、シクロヘキサンジメタノール型エポキシ樹脂、ナフチレンエーテル型エポキシ樹脂、トリメチロール型エポキシ樹脂、テトラフェニルエタン型エポキシ樹脂等が挙げられる。これらのうち、エポキシ樹脂(B)は、芳香族系のエポキシ樹脂であることが好ましく、20℃で液状の芳香族系のエポキシ樹脂であることがより好ましい。エポキシ樹脂は1種単独で用いてもよく、2種以上を任意の組み合わせ及び比率で併用してもよい。
本実施形態に係る樹脂組成物は、硬化促進剤(C)を含んでもよい。硬化促進剤(C)としては、特に限定されないが、リン系硬化促進剤、アミン系硬化促進剤、イミダゾール系硬化促進剤、グアニジン系硬化促進剤、金属系硬化促進剤等が挙げられる。これらのうち、硬化促進剤(C)は、好ましくはリン系硬化促進剤、アミン系硬化促進剤、イミダゾール系硬化促進剤又は金属系硬化促進剤であり、より好ましくはアミン系硬化促進剤である。硬化促進剤(C)は、1種単独で用いてもよく、2種以上を任意の組み合わせ及び比率で併用してもよい。
本実施形態に係る樹脂組成物は、本発明の効果を阻害しない範囲で、フェノールカーボネート樹脂(A)以外の硬化剤(以下、「その他の硬化剤」と称する。)を含んでいてもよい。その他の硬化剤としては特に限定されないが、フェノール系硬化剤、ナフトール系硬化剤、アミド系硬化剤、活性エステル系硬化剤、ベンゾオキサジン系硬化剤、シアネートエステル系硬化剤、カルボジイミド系硬化剤、及びフェノールカーボネート樹脂(A)以外のフェノールカーボネート樹脂等が挙げられる。これらのうち、活性エステル系硬化剤、フェノール系硬化剤、ベンゾオキサジン系硬化剤、シアネートエステル系硬化剤、及びカルボジイミド系硬化剤が好ましく、より好ましくは活性エステル系硬化剤、フェノール系硬化剤及びカルボジイミド系硬化剤である。その他の硬化剤は1種単独で用いてもよく、又は2種以上を任意の組み合わせ及び比率で併用してもよい。
本実施形態に係る樹脂組成物は、塗膜形成時の取り扱い時に、樹脂組成物の粘度を適度に調整するために溶剤を配合し、希釈してもよい。本実施形態に係る樹脂組成物において、溶剤は、樹脂組成物の成形における取り扱い性、作業性を確保するために用いられ、その使用量には特に制限がない。なお、本明細書においては、「溶剤」という語と前述の「溶媒」という語をその使用形態により区別して用いるが、それぞれ独立して同種のものを用いても異なるものを用いてもよい。
本実施形態に係る樹脂組成物には、その機能性の更なる向上を目的として、以上で挙げたもの以外の成分(本明細書において「その他の成分」と称することがある。)を含んでいてもよい。このようなその他の成分としては、エポキシ樹脂を除く熱硬化性樹脂や光硬化性樹脂、硬化促進剤(ただし、「硬化剤」に含まれるものを除く。)、紫外線防止剤、酸化防止剤、カップリング剤、可塑剤、フラックス、難燃剤、着色剤、分散剤、乳化剤、低弾性化剤、希釈剤、消泡剤、イオントラップ剤、無機フィラー、有機フィラー等が挙げられる。
本実施形態に係る樹脂組成物を硬化させて硬化物とする際の樹脂組成物の硬化方法は、樹脂組成物中の配合成分や配合量によっても異なるが、通常、80~280℃で60~360分の加熱条件が挙げられる。この加熱は80~160℃で10~90分の一次加熱と、120~200℃で60~150分の二次加熱との二段処理を行うことが好ましく、また、ガラス転移温度(Tg)が二次加熱の温度を超える配合系においてはさらに150~280℃で60~120分の三次加熱を行うことが好ましい。このように二次加熱、三次加熱を行うことは硬化不良や溶剤の残留を低減する観点から好ましい。
本実施形態に係る樹脂組成物は、低誘電率、低誘電正接及び高耐熱性の硬化物を形成することができる。したがって、本実施形態に係る樹脂組成物は、電気・電子部品、プリント配線板等の絶縁層;半導体封止材;等に好適に使用することができる。
本発明の第2の実施形態は、本発明の第1の実施形態に係る樹脂組成物で形成された樹脂組成物層を有する樹脂シートである。
本実施形態に係る樹脂シートは、樹脂組成物層を硬化することで、樹脂組成物の硬化物からなる絶縁層を形成することができる。したがって、本実施形態に係る樹脂シートは、電子・電子部品、プリント配線板等の絶縁層を形成するための樹脂シートとして好適に使用することができる。
プラスチックフィルムを構成する材料としては、例えば、ポリエチレンテレフタレート(PET)、ポリエチレンナフタレート(PEN)等のポリエステル;ポリカーボネート;ポリメチルメタクリレート(PMMA)等のアクリル樹脂;環状ポリオレフィン;トリアセチルセルロース(TAC);ポリエーテルサルファイド;ポリエーテルケトン;ポリイミド;等が挙げられ、好ましくはポリエチレンテレフタレート又はポリエチレンナフタレートである。
金属箔としては、例えば、銅箔、アルミニウム箔、銅合金箔、アルミニウム合金箔等が挙げられ、好ましくは銅箔である。
本発明の第3の実施形態に係るエポキシ樹脂用硬化剤は、フェノールカーボネート樹脂(A)’を含む。本実施形態に係るエポキシ樹脂用硬化剤は、本発明の第1の実施形態におけるエポキシ樹脂(B)を硬化するための硬化剤として使用することができる他、エポキシ樹脂(B)以外の種々のエポキシ樹脂を硬化するための硬化剤として使用することもできる。本実施形態に係るエポキシ樹脂用硬化剤を使用することにより、低誘電率、低誘電正接及び高耐熱性のエポキシ樹脂硬化物を得ることができる。
なお、本実施形態に係るエポキシ樹脂硬化剤は、本発明の効果を阻害しない範囲において、他の成分、例えば本発明の第1の実施形態に係る樹脂組成物の任意成分である硬化促進剤、溶剤等を含有していてもよい。
フェノールカーボネート樹脂(A)’は、本発明の第1の実施形態におけるフェノールカーボネート樹脂(A)の粘度平均分子量(Mv)及び末端芳香族炭化水素基量を特定範囲に変更したものである。すなわち、フェノールカーボネート樹脂(A)’のMvの範囲及び末端芳香族炭化水素基量の範囲以外の要素(例えば、Mvの測定方法、構成単位、カーボネート当量、末端水酸基量、ガラス転移温度、及び製造方法等)は、その好ましい態様等も含め、フェノールカーボネート樹脂(A)と同様である。したがって、フェノールカーボネート樹脂(A)’のMvの範囲及び末端芳香族炭化水素基量の範囲以外の要素については、上記項目<フェノールカーボネート樹脂(A)>で説明した通りであり、当該項目の記載を援用する。
以下の実施例において、物性、特性の評価は以下の1)~8)に記載の方法で行った。
フェノールカーボネート樹脂の粘度平均分子量(Mv)は、溶媒として塩化メチレンを使用し、ウベローデ粘度管(森友理化工業社製)を用いて、20℃における固有粘度(極限粘度)[η](単位dL/g)を求め、Schnellの粘度式(下記式)から算出した。
[η]=1.23×10-4Mv0.83
フェノールカーボネート樹脂の末端水酸基量は、四塩化チタン/酢酸を用いた比色定量法により測定した。具体的には、以下に記載の手法により測定した。これにより実施例における四塩化チタン/酢酸を用いた比色定量法により測定される末端水酸基量を測定することができる。
1,000mLメスフラスコに酢酸50mLを加え、塩化メチレンでメスアップし混合することで、5v/v%酢酸溶液を調製した。
300mLのフラスコに塩化メチレンをメスシリンダーで90mL入れ、5v/v%酢酸溶液をメスシリンダーで10mL添加し、攪拌子を入れてマグネチックスターラーで攪拌しながら、5mLのメスピペットで四塩化チタン溶液を2.5mL、メタノールを2.0mL、ゆっくりと添加することで、四塩化チタン溶液を調製した。
原料ジヒドロキシ化合物の末端水酸基量が10重量ppmになるように塩化メチレン溶液を調製し、25mLのメスフラスコにそれぞれ、0、3、5mLずつ加えた。続いて、5v/v%酢酸を5mLずつ、四塩化チタン溶液10mLずつ加えた。それぞれ、塩化メチレンでメスアップしてよく混合した。
作成した検量試料の吸光度をそれぞれ検出波長546nmで測定した。得られた吸光度を、検量線試料の濃度に対してプロットした。この傾きの逆数をファクターとした。
ポリカーボネート樹脂組成物0.2gと、5mLの塩化メチレンを、25mLメスフラスコに加えて溶解させた。つぎに、5v/v%酢酸溶液5mL、四塩化チタン溶液10mLを加え、塩化メチレンでメスアップし、よく混合した。このように調製した溶液の吸光度を検出波長546nmで測定した。
測定した吸光度とファクターの積を、測定試料の濃度で除することで、ポリカーボネート樹脂組成物中の末端水酸基量を算出した。
なお、原料ジヒドロキシ化合物が複数の構造からなるポリカーボネート樹脂組成物においては、対応する原料ジヒドロキシ化合物を共重合比率に応じて混合したサンプルを最低3水準の濃度で用意し、該3点以上のデータから検量線を引いた上で、末端水酸基量を測定する。また、検出波長は546nmとする。
フェノールカーボネート樹脂の末端芳香族炭化水素基量は、下記式に示すように、フェノールカーボネート樹脂の全末端基量から上述の方法により測定した末端水酸基量を減ずることにより算出した。
フェノールカーボネート樹脂の末端芳香族炭化水素基量(質量%)=100-{フェノールカーボネート樹脂の末端水酸基量(質量%)}
東ソー(株)製「HLC-8320GPC装置」を使用し、以下の測定条件で、標準ポリスチレンとして、TSK Standard Polystyrene F-128(Mw:1,090,000、Mn:1,030,000)、F-10(Mw:106,000、Mn:103,000)、F-4(Mw:43,000、Mn:42,700)、F-2(Mw:17,200、Mn:16,900)、A-5000(Mw:6,400、Mn:6,100)、A-2500(Mw:2,800、Mn:2,700)、A-300(Mw:453、Mn:387)を使用した検量線を作成して、重量平均分子量(Mw)及び数平均分子量(Mn)をポリスチレン換算値として測定した。
溶離液:テトラヒドロフラン
流速:0.5mL/min
検出:UV(波長254nm)
温度:40℃
試料濃度:0.1重量%
インジェクション量:10μL
JIS K 7236に準じて測定し、固形分換算値として表記した。
下記式に従い算出した。
エポキシ基/末端水酸基=(エポキシ樹脂の重量/エポキシ当量)/(フェノールカーボネート樹脂の重量×フェノールカーボネート樹脂の末端水酸基量/17.0)
実施例1~7で得たエポキシ樹脂硬化物のフィルム(厚さ:約50μm)について、SIIナノテクノロジー(株)製「DSC7020」を使用し、30~250℃まで10℃/minで昇温してガラス転移温度を測定した。なお、ここでいうガラス転移温度は、JIS K 7121「プラスチックの転移温度測定法」に記載されているうち「中点ガラス転移温度:Tmg」に基づいて測定した。
実施例1~7で得たエポキシ樹脂硬化物のフィルムを幅2mm、長さ80mmの試験片に切断し、該試験片について、ネットワークアナライザーを用いて、空洞共振摂動法により測定周波数1GHz及び10GHz、測定温度23℃にて比誘電率(εr)及び誘電正接(tanδ)を測定した。
以下の実施例の樹脂組成物に用いた各種成分は、以下の通りである。
(B-1):三菱ケミカル(株)製 商品名「jER 828US」(ビスフェノールA型エポキシ樹脂、エポキシ当量185g/当量)
(B-2):三菱ケミカル(株)製、商品名「YL7891T30」、Mn:10,000、Mw:30,000、エポキシ当量:6,000g/当量、高分子エポキシ樹脂の30wt%トルエン溶液
(A-1):2,2-ビス(4-ヒドロキシフェニル)プロパン型のフェノールカーボネート樹脂(n=7)
(A-2):2,2-ビス(4-ヒドロキシ-3-メチルフェニル)プロパン型のフェノールカーボネート樹脂(n=5)
(A-3):9,9-ビス(4-ヒドロキシ-3-メチルフェニル)フルオレン型のフェノールカーボネート樹脂(n=4)
(A-4):9,9-ビス(4-ヒドロキシ-3-メチルフェニル)フルオレンと2,2-ビス(4-ヒドロキシ-3-メチルフェニル)プロパンの共重合型のフェノールカーボネート樹脂(n=9)
(A-5):1,1-ビ-2-ナフトールと4,4-(3,3,5-トリメチル-1,1-シクロヘキサンジイル)ビスフェノールの共重合型のフェノールカーボネート樹脂(n=2)
(A-6):1,1-ビ-2-ナフトールと4,4-(3,3,5-トリメチル-1,1-シクロヘキサンジイル)ビスフェノールの共重合型のフェノールカーボネート樹脂(n=2)
(A-7):2,2-ビス(4-ヒドロキシフェニル)プロパン型のフェノールカーボネート樹脂(n=7)
上記(A-1)~(A-7)は、それぞれ以下の合成例1~7において合成されたものであり、以下の繰り返し単位を有する。
(C-1):N,N’-ジメチルアミノピリジン(DMAP)、5wt%トルエン溶液
S-651:AGCセイミケミカル(株)製 フッ素系界面活性剤(ノニオンタイプ)
[合成例1:フェノールカーボネート樹脂(A-1)の合成]
反応器攪拌機、反応器加熱装置、及び反応器圧力調整装置を付帯した内容量150mLのガラス製反応器に、2,2-ビス(4-ヒドロキシフェニル)プロパン(BPA)116.71g(約0.5112mol)、ジフェニルカーボネート(DPC)137.99g(約0.6442mol)、及び触媒として炭酸セシウム0.04質量%水溶液を、炭酸セシウムがジヒドロキシ化合物1mol当たり1μmolとなるように添加して原料混合物を調製した。
反応器攪拌機、反応器加熱装置、及び反応器圧力調整装置を付帯した内容量150mLのガラス製反応器に、2,2-ビス(4-ヒドロキシ-3-メチルフェニル)プロパン(BPC)116.71g(約0.4553mol)、ジフェニルカーボネート(DPC)146.30g(約0.6829mol)、及び触媒として炭酸セシウム0.4質量%水溶液を、炭酸セシウムがジヒドロキシ化合物1mol当たり3μmolとなるように添加して原料混合物を調製した。
反応器攪拌機、反応器加熱装置、及び反応器圧力調整装置を付帯した内容量150mLのガラス製反応器に、9,9-ビス(4-ヒドロキシ-3-メチルフェニル)フルオレン(BCF)116.71g(約0.3083mol)、DPC 99.08g(約0.4625mol)、及び触媒として炭酸セシウム4質量%水溶液を、炭酸セシウムが全ジヒドロキシ化合物1mol当たり100μmolとなるように添加して原料混合物を調製した以外は、合成例2に記載の手法で実施した。
反応器攪拌機、反応器加熱装置、及び反応器圧力調整装置を付帯した内容量150mLのガラス製反応器に、9,9-ビス(4-ヒドロキシ-3-メチルフェニル)フルオレン(BCF)80.41g(約0.2124mol)、2,2-ビス(4-ヒドロキシ-3-メチルフェニル)プロパン(BPC)36.30g(約0.1416mol)、DPC 113.77g(約0.5311mol)、及び触媒として炭酸セシウム4質量%水溶液を、炭酸セシウムが全ジヒドロキシ化合物1mol当たり60μmolとなるように添加して原料混合物を調製した以外は、実施例2に記載の手法で実施した。
反応器攪拌機、反応器加熱装置、及び反応器圧力調整装置を付帯した内容量150mLのガラス製反応器に、4,4’-(3,3、5-トリメチルシクロヘキシリデン)ビスフェノール(BP-TMC)60.71g(約0.196mol)、1,1’-ビ-2-ナフトール(BN)56.00g(約0.196mol)、DPC 108.93g(約0.5085mol)、及び触媒として炭酸セシウム4質量%水溶液を、炭酸セシウムが全ジヒドロキシ化合物1mol当たり64μmolとなるように添加して原料混合物を調製した以外は、実施例2に記載の手法で実施した。
反応器攪拌機、反応器加熱装置、及び反応器圧力調整装置を付帯した内容量150mLのガラス製反応器に、4,4’-(3,3、5-トリメチルシクロヘキシリデン)ビスフェノール(BP-TMC)60.71g(約0.196mol)、1,1’-ビ-2-ナフトール(BN)56.00g(約0.196mol)、DPC 108.93g(約0.5085mol)、及び触媒として炭酸セシウム4質量%水溶液を、炭酸セシウムが全ジヒドロキシ化合物1mol当たり64μmolとなるように添加して原料混合物を調製した以外は、実施例2に記載の手法で実施した。
反応器攪拌機、反応器加熱装置、及び反応器圧力調整装置を付帯した内容量150mLのガラス製反応器に、2,2-ビス(4-ヒドロキシフェニル)プロパン(BPA)116.71g(約0.5112mol)、ジフェニルカーボネート(DPC)102.95g(約0.4806mol)、及び触媒として炭酸セシウム0.04質量%水溶液を、炭酸セシウムがジヒドロキシ化合物1mol当たり0.5μmolとなるように添加して原料混合物を調製した。
<実施例1~7>
表2に示す配合でエポキシ樹脂(B-1)と、フェノールカーボネート樹脂(A-1)~(A-7)のシクロヘキサノン溶液(実施例1、実施例7は20wt%、実施例2~6は30wt%)と、硬化促進剤(C-1)と、フィルム化剤となる他のエポキシ樹脂として高分子エポキシ樹脂(B-2)と、レベリング剤とを混合して、樹脂組成物を得た。得られた樹脂組成物の溶液をセパレータ(シリコーン処理したポリエチレンテレフタレートフィルム)にアプリケーターで塗布し、160℃で1.5時間、その後200℃で1.5時間乾燥させ、エポキシ樹脂硬化物のフィルムを得た。得られたフィルムについて、前述の手法に従って耐熱性、誘電特性を評価した。結果を表2に示す。
Claims (14)
- フェノールカーボネート樹脂(A)及びエポキシ樹脂(B)を含む樹脂組成物であって、
前記フェノールカーボネート樹脂(A)の末端水酸基に対する前記エポキシ樹脂(B)のエポキシ基のモル比(エポキシ基/末端水酸基)が、3.0~100,000である、樹脂組成物。 - 前記フェノールカーボネート樹脂(A)が、下記式(1)で表される繰り返し単位を含む、請求項1に記載の樹脂組成物。
(式(1)中、A1及びA2は、それぞれ独立に下記式(2)又は(3)で表される基であり;Xは、直接結合、置換基を有していてもよい炭素数1~15の2価の炭化水素基、-O-、-S-、-SO-、-SO2-、-CO-、-OCO-又は-COO-であり;n1及びn2は、それぞれ独立に1~50の整数である。)
(式(2)及び(3)中、Rは、それぞれ独立に炭素数1~12のアルキル基、炭素数7~12のアリールアルキル基、炭素数1~12のアルコキシ基、炭素数7~12のアリールアルコキシ基、炭素数6~12のアリール基、炭素数2~12のアルケニル基、炭素数8~12のアリールアルケニル基、炭素数2~12のアルキニル基、炭素数8~12のアリールアルキニル基、ハロゲン原子、水酸基、カルボキシ基、スルホン基、アミノ基、シアノ基又はニトロ基であり;pは、0~4の整数であり;qは、0~6の整数であり;*は、結合位置である。) - 前記フェノールカーボネート樹脂(A)の粘度平均分子量(Mv)が、500~100,000である、請求項1に記載の樹脂組成物。
- 前記フェノールカーボネート樹脂(A)のカーボネート当量が、100~10,000g/eqである、請求項1又は2に記載の樹脂組成物。
- 前記エポキシ樹脂(B)に対する前記フェノールカーボネート樹脂(A)の重量比が、0.01以上100以下である、請求項1又は2に記載の樹脂組成物。
- さらに硬化促進剤(C)を含み、前記フェノールカーボネート樹脂(A)及び前記エポキシ樹脂(B)の合計100重量部に対する前記硬化促進剤(C)の含有量が、0.001~5重量部である、請求項1又は2に記載の樹脂組成物。
- 前記硬化促進剤(C)が、リン系硬化促進剤、アミン系硬化促進剤、イミダゾール系硬化促進剤、及び金属系硬化促進剤からなる群より選ばれる1種以上である、請求項7に記載の樹脂組成物。
- 請求項1又は2に記載の樹脂組成物で形成された樹脂組成物層を有する、樹脂シート。
- 請求項1又は2に記載の樹脂組成物を硬化してなる、硬化物。
- 請求項1又は2に記載の樹脂組成物を硬化してなる、絶縁層。
- 請求項11に記載の絶縁層を有する、電気・電子部品。
- 請求項11に記載の絶縁層を有する、プリント配線板。
- フェノールカーボネート樹脂(A)’を含むエポキシ樹脂用硬化剤であって、
前記フェノールカーボネート樹脂(A)’は、粘度平均分子量(Mv)が500~20,000であり、末端芳香族炭化水素基量が95質量%以上である、エポキシ樹脂用硬化剤。
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63258949A (ja) * | 1987-02-25 | 1988-10-26 | ゼネラル・エレクトリック・カンパニイ | 環状ポリカーボネートーポリエポキシド反応生成物およびその製造方法 |
| JPH03237119A (ja) * | 1989-09-11 | 1991-10-23 | Dow Chem Co:The | 熱成形可能な、熱硬化性エポキシ/ポリエステル反応生成物 |
| JPH0967428A (ja) * | 1995-08-31 | 1997-03-11 | Yokohama Rubber Co Ltd:The | 複合材料及びその製造方法並びにトラックベルトの横剛性部材用複合材料 |
| JP2003165897A (ja) * | 2001-11-28 | 2003-06-10 | Shin Etsu Chem Co Ltd | 半導体封止用エポキシ樹脂組成物及びそれを用いた半導体装置 |
| JP2019035056A (ja) * | 2017-08-21 | 2019-03-07 | 味の素株式会社 | 樹脂組成物 |
| WO2020075611A1 (ja) * | 2018-10-12 | 2020-04-16 | 本州化学工業株式会社 | エポキシ樹脂組成物 |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63258949A (ja) * | 1987-02-25 | 1988-10-26 | ゼネラル・エレクトリック・カンパニイ | 環状ポリカーボネートーポリエポキシド反応生成物およびその製造方法 |
| JPH03237119A (ja) * | 1989-09-11 | 1991-10-23 | Dow Chem Co:The | 熱成形可能な、熱硬化性エポキシ/ポリエステル反応生成物 |
| JPH0967428A (ja) * | 1995-08-31 | 1997-03-11 | Yokohama Rubber Co Ltd:The | 複合材料及びその製造方法並びにトラックベルトの横剛性部材用複合材料 |
| JP2003165897A (ja) * | 2001-11-28 | 2003-06-10 | Shin Etsu Chem Co Ltd | 半導体封止用エポキシ樹脂組成物及びそれを用いた半導体装置 |
| JP2019035056A (ja) * | 2017-08-21 | 2019-03-07 | 味の素株式会社 | 樹脂組成物 |
| WO2020075611A1 (ja) * | 2018-10-12 | 2020-04-16 | 本州化学工業株式会社 | エポキシ樹脂組成物 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2025137910A1 (zh) * | 2023-12-27 | 2025-07-03 | 上纬创新育成股份有限公司 | 可固化的碳酸酯组合物、其制备方法与碳酸酯固化物 |
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