WO2012023435A1 - エポキシ化合物、硬化性組成物、及びその硬化物 - Google Patents
エポキシ化合物、硬化性組成物、及びその硬化物 Download PDFInfo
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- WO2012023435A1 WO2012023435A1 PCT/JP2011/067771 JP2011067771W WO2012023435A1 WO 2012023435 A1 WO2012023435 A1 WO 2012023435A1 JP 2011067771 W JP2011067771 W JP 2011067771W WO 2012023435 A1 WO2012023435 A1 WO 2012023435A1
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- 0 CC1[C@](CC(*)(*)CCCCCCCCCCCC(*)(*)C2)(C=CI=C*)C=CCC1C2OCC1OC1 Chemical compound CC1[C@](CC(*)(*)CCCCCCCCCCCC(*)(*)C2)(C=CI=C*)C=CCC1C2OCC1OC1 0.000 description 2
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/20—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the epoxy compounds used
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D303/00—Compounds containing three-membered rings having one oxygen atom as the only ring hetero atom
- C07D303/02—Compounds containing oxirane rings
- C07D303/12—Compounds containing oxirane rings with hydrocarbon radicals, substituted by singly or doubly bound oxygen atoms
- C07D303/18—Compounds containing oxirane rings with hydrocarbon radicals, substituted by singly or doubly bound oxygen atoms by etherified hydroxyl radicals
- C07D303/28—Ethers with hydroxy compounds containing oxirane rings
- C07D303/30—Ethers of oxirane-containing polyhydroxy compounds in which all hydroxyl radicals are etherified with oxirane-containing hydroxy compounds
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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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/20—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the epoxy compounds used
- C08G59/22—Di-epoxy compounds
- C08G59/24—Di-epoxy compounds carbocyclic
- C08G59/245—Di-epoxy compounds carbocyclic aromatic
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/20—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the epoxy compounds used
- C08G59/32—Epoxy compounds containing three or more epoxy groups
- C08G59/3218—Carbocyclic compounds
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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
- C08G59/62—Alcohols or phenols
- C08G59/621—Phenols
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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
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
- C08L63/04—Epoxynovolacs
Definitions
- the present invention is an epoxy compound that is excellent in heat resistance and low thermal expansion of the resulting cured product, and can be suitably used for printed wiring boards, semiconductor encapsulants, paints, casting applications, and the like, and a curable composition containing the same And a cured product thereof.
- Epoxy resins are used in adhesives, molding materials, paints, photoresist materials, color developing materials, etc., and are also used in semiconductor encapsulants and prints because they are excellent in the excellent heat resistance and moisture resistance of the resulting cured products. Widely used in electrical and electronic fields such as insulating materials for wiring boards.
- a flip chip connection method in which a semiconductor device and a substrate are joined by solder balls is widely used.
- a solder ball is placed between a wiring board and a semiconductor, and the whole is heated and melt bonded to form a so-called reflow semiconductor mounting method. Therefore, the wiring plate itself is exposed to a high heat environment during solder reflow.
- an insulating material used for a printed wiring board is required to have a low thermal expansion coefficient.
- the curable resin composition is required to have higher heat resistance than ever before.
- Printed wiring boards are generally made by curing and integrally molding a curable resin composition based on an epoxy resin and a glass woven fabric. Improvement of the epoxy resin is required to achieve high heat resistance and low thermal expansion. It has been demanded.
- a naphthalene type epoxy resin obtained by condensing a naphthol compound and formaldehyde and reacting with epichlorohydrin is known to solve technical problems such as heat resistance. (See Patent Document 1 below).
- the naphthol novolac type epoxy resin described in Patent Document 1 has an effect of improving the heat resistance of the cured epoxy resin due to the rigidity of the skeleton compared to a general phenol novolac type epoxy resin. It is done. However, it still has not reached a level that can sufficiently satisfy the current required level. Furthermore, although the naphthol novolak type epoxy resin has a certain low thermal expansion effect due to the orientation of the naphthalene skeleton, it has not yet reached a satisfactory level.
- the problem to be solved by the present invention is a novel epoxy compound exhibiting performance excellent in heat resistance and low thermal expansion in a cured product, a curable composition using the same, and excellent in heat resistance and low thermal expansion. It is to provide a cured product.
- thermosetting epoxy compound obtained by epoxidizing a calixarene-type naphthol compound obtained by reacting ⁇ -naphthol and formaldehyde under predetermined conditions.
- the cured product When used as a resin main agent, the cured product was found to exhibit excellent heat resistance and low linear expansion, and the present invention was completed.
- each R 1 independently represents a hydrogen atom, an alkyl group, or an alkoxy group, and n is a repeating unit and is an integer of 2 to 10.
- the present invention further comprises a curable resin composition comprising an epoxy compound (A) and a curing agent (B) as essential components, wherein the above-described novel epoxy compound is used as the epoxy compound (A). It relates to a curable resin composition.
- the present invention further relates to a cured product obtained by curing reaction of the curable resin composition.
- FIG. 1 is a GPC chart of the naphthol compound (A-1) obtained in Example 1.
- FIG. 2 is the MS spectrum of the naphthol compound (A-1) obtained in Example 1.
- FIG. 3 is a GPC chart of the epoxy compound (A-2) obtained in Example 1.
- 4 is a 13 C-NMR chart of the epoxy compound (A-2) obtained in Example 1.
- FIG. 5 is an MS spectrum of the epoxy compound (A-2) obtained in Example 1.
- FIG. 6 is a GPC chart of the epoxy resin mixture (A-3) obtained in Example 2.
- FIG. 7 is a 13 C-NMR chart of the epoxy resin mixture (A-3) obtained in Example 2.
- FIG. 8 is an MS spectrum of the epoxy resin mixture (A-3) obtained in Example 2.
- FIG. 9 is a GPC chart of the epoxy resin mixture (A-4) obtained in Example 3.
- novel epoxy compound of the present invention has the following structural formula 1
- each R 1 independently represents a hydrogen atom, an alkyl group, or an alkoxy group, and n is a repeating unit and is an integer of 2 to 10. It has the resin structure represented by these.
- the novel epoxy compound of the present invention has a so-called calixarene-type cyclic structure, and therefore exhibits excellent heat resistance as a result of suppressing molecular motion in the cured product of the epoxy compound.
- it is easy to produce the novel epoxy compound that the bonding position of the methylene group on the naphthalene ring has two bonding sites on the same ring. It is preferable from the point, and in particular, a methylene group bonded at the 2,4-position of the naphthalene ring is from the point that a regular molecular structure is formed and the cured product is excellent in heat resistance and low linear expansion.
- n in the structural formula 1 is an integer of 2 to 10, and is preferably 2, 4, 6, or 8 from the standpoint of excellent chemical structure applicability and a remarkable effect of improving heat resistance. In particular, 4 is most preferable.
- Such a novel epoxy compound can be identified by confirming the molecular weight of the theoretical structure in the MS spectrum.
- the alkyl group is an alkyl group having 1 to 4 carbon atoms such as a methyl group, an ethyl group, an i-propyl group, or a t-butyl group
- the alkoxy group is a methoxy group, an ethoxy group, i- Examples thereof include alkoxy groups having 1 to 4 carbon atoms such as propyloxy group and t-butyloxy group.
- R 1 is particularly preferably a hydrogen atom, a methyl group, an ethyl group, or a methoxy group, and particularly preferably a hydrogen atom from the viewpoint of excellent heat resistance of the cured product.
- the naphthol skeleton in the structural formula 1 may be either an ⁇ -naphthol skeleton or a ⁇ -naphthol skeleton, but in the present invention, the epoxy resin finally obtained to be an ⁇ -naphthol skeleton is cured. It is preferable from the viewpoint of excellent heat resistance in a product and excellent low thermal expansion.
- an ⁇ -naphthol skeleton and a ⁇ -naphthol skeleton may coexist as the naphthol skeleton, and in this case, the abundance ratio of both is ⁇ -naphthol compound relative to 1 mol of ⁇ -naphthol compound. Is preferably a ratio of 1.2 mol or less from the viewpoint of the low thermal expansibility described above.
- the above-described novel epoxy compound of the present invention can be produced by the following method. That is, naphthol compound and formaldehyde are reacted in the presence of a basic catalyst at a molar ratio (naphthol compound / formaldehyde) of 1.0 / 1.0 to 1.0 / 2.0 to calix.
- An arene-type naphthol compound can be obtained (step 1), and then epihalohydrin can be reacted in the presence of a basic catalyst to be epoxidized (step 2).
- the reaction in the step 1 can be performed specifically at a temperature of 20 to 100 ° C.
- the naphthol compound used in Step 1 specifically includes ⁇ -naphthol and ⁇ -naphthol, or a carbon such as a methyl group, an ethyl group, an i-propyl group, or a t-butyl group in the aromatic nucleus.
- a carbon such as a methyl group, an ethyl group, an i-propyl group, or a t-butyl group in the aromatic nucleus.
- Examples thereof include compounds in which an alkyl group having 1 to 4 atoms is substituted, and compounds in which an alkoxy group having 1 to 4 carbon atoms such as a methoxy group, an ethoxy group, an i-propyloxy group, and a t-butyloxy group are substituted.
- ⁇ -naphthol 1-hydroxy-3-methylnaphthalene, 1-hydroxy-5-methylnaphthalene, 1-hydroxy-6-methylnaphthalene, 1-hydroxy-5-ethylnaphthalene, 1-hydroxy-6 -Ethylnaphthalene, 1-hydroxy-5-butylnaphthalene, 1-hydroxy-6-butylnaphthalene, 1-hydroxy-5-propylnaphthalene, 1-hydroxy-6-propylnaphthalene, 1-hydroxy-5-methoxynaphthalene, 1 -Hydroxy-6-methoxynaphthalene, 1-hydroxy-5-ethoxynaphthalene, 1-hydroxy-6-ethoxynaphthalene, 1-hydroxy-5-propyloxynaphthalene, 1-hydroxy-6-propyloxynaphthalene, 1-hydroxy- 5-Butyloxynaphthale ⁇ -naphthol compounds such as 1-hydroxy-6-butyloxynaphthalene; ⁇ -naph
- the ⁇ -naphthol compound and the ⁇ -naphthol compound may be used in combination, and in that case, the ratio of the ⁇ -naphthol compound is 1.2 mol or less with respect to 1 mol of the ⁇ -naphthol compound. It is preferable from the viewpoint of low thermal expansion described above.
- the formaldehyde source used in step 1 includes, for example, formalin, paraformaldehyde, trioxane and the like.
- formalin is preferably 30 to 60% by mass of formalin from the viewpoint of water dilution and workability during production.
- the basic catalyst used in Step 1 include alkaline earth metal hydroxides, alkali metal carbonates, and alkali metal hydroxides.
- alkali metal hydroxides such as sodium hydroxide and potassium hydroxide are preferred from the viewpoint of excellent catalytic activity.
- these basic catalysts may be used in the form of an aqueous solution of about 10 to 55% by mass or in the form of a solid.
- the amount of the basic catalyst used in Step 1 is preferably 0.02 mol or more with respect to 1 mol of the naphthol compound from the viewpoint of easy formation of the calixarene structure.
- the molar ratio (naphthol compound / formaldehyde) is preferably 1.0 or less from the viewpoint that the selectivity of the naphthol-type calix (4) arene compound which is the most preferable molecular structure can be enhanced.
- the naphthol-type calix (4) arene compound is a compound in which four molecules of an ⁇ -naphthol compound are bonded via a methylene bond to form a cyclic structure.
- step 2 the calixarene-type naphthol compound obtained in step 1 can be reacted with epihalohydrin to obtain the target epoxy compound.
- epihalohydrin is added in a ratio of 2 to 10 times (molar basis) with respect to the number of moles of the phenolic hydroxyl group in the calixarene naphthol compound, and further phenolic Examples include a method of reacting at a temperature of 20 to 120 ° C. for 0.5 to 10 hours while adding or gradually adding a basic catalyst in an amount of 0.9 to 2.0 times (molar basis) to the number of moles of hydroxyl group. It is done.
- the basic catalyst may be solid or an aqueous solution thereof. When an aqueous solution is used, it is continuously added and water and epihalohydrins are continuously distilled from the reaction mixture under reduced pressure or normal pressure. Alternatively, the solution may be separated and further separated to remove water and the epihalohydrin is continuously returned to the reaction mixture.
- the epihalohydrin used is not particularly limited, and examples thereof include epichlorohydrin, epibromohydrin, ⁇ -methylepichlorohydrin, and the like. Of these, epichlorohydrin is preferred because it is easily available industrially.
- the basic catalyst includes alkaline earth metal hydroxides, alkali metal carbonates, alkali metal hydroxides and the like, as in Step 1.
- alkali metal hydroxides such as sodium hydroxide and potassium hydroxide are preferred from the viewpoint of excellent catalytic activity of the epoxidation reaction.
- these basic catalysts may be used in the form of an aqueous solution of about 10 to 55% by mass or in the form of a solid.
- combination of an epoxy compound can be raised by using an organic solvent together.
- organic solvents examples include, but are not limited to, ketones such as acetone and methyl ethyl ketone, alcohols such as methanol, ethanol, 1-propyl alcohol, isopropyl alcohol, 1-butanol, secondary butanol, and tertiary butanol, methyl
- examples include cellosolves such as cellosolve and ethyl cellosolve, ethers such as tetrahydrofuran, 1,4-dioxane, 1,3-dioxane and diethoxyethane, and aprotic polar solvents such as acetonitrile, dimethyl sulfoxide and dimethylformamide.
- ketones such as acetone and methyl ethyl ketone
- alcohols such as methanol, ethanol, 1-propyl alcohol, isopropyl alcohol, 1-butanol, secondary butanol, and tertiary butanol, methyl
- the amount used is preferably 0.1 to 3.0 parts by mass with respect to 100 parts by mass of the epoxy resin used.
- the produced salt is removed by filtration, washing with water, etc., and further, the target epoxy compound can be obtained by distilling off a solvent such as toluene and methyl isobutyl ketone under heating and reduced pressure.
- the curable composition of the present invention uses the novel epoxy compound detailed above as an epoxy compound (A) as a main component.
- the curing agent (B) in the curable composition include various known curing agents such as amine compounds, amide compounds, acid anhydride compounds, phenol compounds, and the like.
- examples of the amine compound include diaminodiphenylmethane, diethylenetriamine, triethylenetetramine, diaminodiphenylsulfone, isophoronediamine, imidazole, BF 3 -amine complex, and guanidine derivative.
- the amide compound include dicyandiamide. And polyamide resins synthesized from dimer of linolenic acid and ethylenediamine.
- acid anhydride compounds include phthalic anhydride, trimellitic anhydride, pyromellitic anhydride, maleic anhydride, and tetrahydrophthalic anhydride.
- Acid, methyltetrahydrophthalic anhydride, methyl nadic anhydride, hexahydrophthalic anhydride, methylhexahydrophthalic anhydride, etc., and phenolic compounds include phenol novolac resin, cresol novolac resin Aromatic hydrocarbon formaldehyde resin modified phenolic resin, dicyclopentadiene phenol addition type resin, phenol aralkyl resin (Zyrock resin), naphthol aralkyl resin, trimethylol methane resin, tetraphenylol ethane resin, naphthol novolak resin, naphthol-phenol co-condensation Novolac resin, naphthol-cresol co-condensed novolak resin, biphenyl-modified phenol resin
- the blending ratio of the epoxy compound (A) and the curing agent (B) detailed above is the equivalent ratio of the epoxy group in the epoxy compound (A) and the active hydrogen atom in the curing agent (B) (epoxy group /
- the ratio of the active hydrogen atom) to 1 / 0.5 to 1 / 1.5 is preferable from the viewpoint of excellent heat resistance.
- the curable composition of the present invention further includes another naphthalene-based epoxy resin (A ′) (hereinafter referred to as “naphthalene-based epoxy resin”). It is preferable to use abbreviated as “epoxy resin (A ′)” from the viewpoint of improving the solvent solubility of the composition and facilitating adjustment of the composition for a printed wiring board.
- the naphthalene-based epoxy resin (A ′) used here is 2,7-diglycidyloxynaphthalene, ⁇ -naphthol novolak epoxy resin, ⁇ -naphthol novolak epoxy resin, ⁇ -naphthol / ⁇ -naphthol.
- examples thereof include polyglycidyl ether of co-condensation type novolak, naphthol aralkyl type epoxy resin, 1,1-bis (2,7-diglycidyloxy-1-naphthyl) alkane and the like.
- ⁇ -naphthol co-condensed novolak polyglycidyl ether is preferred.
- ⁇ -naphthol is used in combination with ⁇ -naphthol, and the calixarene type naphthol compound and ⁇ -naphthol / ⁇ -
- a mixture of a naphthol co-condensation type novolak was obtained and then epoxidized to produce a mixture of an epoxy compound (A) and a polyglycidyl ether of ⁇ -naphthol / ⁇ -naphthol co-condensation type novolak. It is preferable from the viewpoint of excellent solvent solubility.
- the abundance ratio of the epoxy compound (A) and the naphthalene-based epoxy resin (A ′) is such that the content ratio based on the area ratio of the naphthalene-based epoxy resin (A ′) when the mixture of both is measured by GPC.
- a ratio of 3 to 50% is preferable from the viewpoint of excellent heat resistance and solvent solubility of the cured product.
- the solubility of the resin component in an organic solvent is not impaired.
- Other epoxy resin (A ′′) may be used within the range.
- the amount of other epoxy resin (A ′′) used is preferably in the range of 5 to 50% by mass in the total epoxy component, for example. .
- epoxy resin (A ′′) As the other epoxy resin (A ′′) that can be used here, various epoxy resins can be used.
- bisphenol type epoxy resins such as bisphenol A type epoxy resin and bisphenol F type epoxy resin
- biphenyl type epoxy Resin biphenyl type epoxy resin such as tetramethylbiphenyl type epoxy resin
- phenol novolac type epoxy resin cresol novolac type epoxy resin
- bisphenol A novolac type epoxy resin condensate of phenolic compound and aromatic aldehyde having phenolic hydroxyl group Epoxy products
- novolac epoxy resins such as biphenyl novolac epoxy resins
- triphenylmethane epoxy resins tetraphenylethane epoxy resins
- with dicyclopentadiene-phenol Reactive epoxy resin phenol aralkyl type epoxy resins
- Phosphorus-containing epoxy resins These epoxy resins may be used singly or as a mixture of two or more.
- the phosphorus atom-containing epoxy resin an epoxidized product of 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (hereinafter abbreviated as “HCA”), HCA and quinones
- HCA 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide
- HCA 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide
- the blending ratio of the curing agent (B) is the same as the epoxy group in all epoxy components in the curable composition.
- the ratio of the equivalent ratio (epoxy group / active hydrogen atom) to the active hydrogen atom in the curing agent (B) is 1 / 0.5 to 1 / 1.5, resulting in good curability and the cured product. It is preferable from the point which is excellent in heat resistance.
- a curing accelerator can be appropriately used in combination with the curable composition of the present invention.
- Various curing accelerators can be used, and examples thereof include phosphorus compounds, tertiary amines, imidazoles, organic acid metal salts, Lewis acids, and amine complex salts.
- imidazole compounds are 2-ethyl-4-methylimidazole
- phosphorus compounds are triphenylphosphine because of their excellent curability, heat resistance, electrical properties, and moisture resistance reliability.
- DBU 1,8-diazabicyclo- [5.4.0] -undecene
- an organic solvent (C) to each of the above components.
- the organic solvent that can be used here include methyl ethyl ketone, acetone, dimethylformamide, methyl isobutyl ketone, methoxypropanol, cyclohexanone, methyl cellosolve, ethyl diglycol acetate, propylene glycol monomethyl ether acetate, etc.
- the amount used can be appropriately selected depending on the application. For example, in printed wiring board applications, it is preferable to use a polar solvent having a boiling point of 160 ° C.
- methyl ethyl ketone such as methyl ethyl ketone, acetone, dimethylformamide, etc.
- a nonvolatile content 40 to 80% by mass It is preferable to use in the ratio which becomes.
- organic solvents for example, ketones such as acetone, methyl ethyl ketone, cyclohexanone, acetates such as ethyl acetate, butyl acetate, cellosolve acetate, propylene glycol monomethyl ether acetate, carbitol acetate, It is preferable to use carbitols such as cellosolve and butyl carbitol, aromatic hydrocarbons such as toluene and xylene, dimethylformamide, dimethylacetamide, N-methylpyrrolidone and the like, and the nonvolatile content is 30 to 60% by mass. It is preferable to use in proportions.
- the curable composition may contain a non-halogen flame retardant containing substantially no halogen atom in the field of printed wiring boards, for example.
- non-halogen flame retardants examples include phosphorus flame retardants, nitrogen flame retardants, silicone flame retardants, inorganic flame retardants, and organic metal salt flame retardants.
- the flame retardants may be used alone or in combination, and a plurality of flame retardants of the same system may be used, or different types of flame retardants may be used in combination.
- the phosphorus flame retardant either inorganic or organic can be used.
- the inorganic compounds include red phosphorus, monoammonium phosphate, diammonium phosphate, triammonium phosphate, ammonium phosphates such as ammonium polyphosphate, and inorganic nitrogen-containing phosphorus compounds such as phosphate amide. .
- the red phosphorus is preferably subjected to a surface treatment for the purpose of preventing hydrolysis and the like.
- the surface treatment method include (i) magnesium hydroxide, aluminum hydroxide, zinc hydroxide, water A method of coating with an inorganic compound such as titanium oxide, bismuth oxide, bismuth hydroxide, bismuth nitrate or a mixture thereof; (ii) an inorganic compound such as magnesium hydroxide, aluminum hydroxide, zinc hydroxide, titanium hydroxide; and A method of coating with a mixture of thermosetting resins such as phenolic resin, and (iii) thermosetting of phenolic resin on a coating of an inorganic compound such as magnesium hydroxide, aluminum hydroxide, zinc hydroxide or titanium hydroxide.
- a method of double coating with a resin may be used.
- general-purpose organic phosphorus compounds such as phosphate ester compounds, phosphonic acid compounds, phosphinic acid compounds, phosphine oxide compounds, phospholane compounds, organic nitrogen-containing phosphorus compounds,
- the blending amount thereof is appropriately selected depending on the type of the phosphorus-based flame retardant, the other components of the curable resin composition, and the desired degree of flame retardancy.
- red phosphorus is used as a non-halogen flame retardant, it should be blended in the range of 0.1 to 2.0 parts by weight.
- organic phosphorus compound is used, it is preferably blended in the range of 0.1 to 10.0 parts by mass, and particularly preferably in the range of 0.5 to 6.0 parts by mass.
- the phosphorous flame retardant when using the phosphorous flame retardant, may be used in combination with hydrotalcite, magnesium hydroxide, boric compound, zirconium oxide, black dye, calcium carbonate, zeolite, zinc molybdate, activated carbon, etc. Good.
- nitrogen-based flame retardant examples include triazine compounds, cyanuric acid compounds, isocyanuric acid compounds, and phenothiazines, and triazine compounds, cyanuric acid compounds, and isocyanuric acid compounds are preferable.
- triazine compound examples include melamine, acetoguanamine, benzoguanamine, melon, melam, succinoguanamine, ethylene dimelamine, melamine polyphosphate, triguanamine, and the like, for example, (i) guanylmelamine sulfate, melem sulfate, sulfate (Ii) co-condensates of phenolic compounds such as phenol, cresol, xylenol, butylphenol, and nonylphenol with melamines such as melamine, benzoguanamine, acetoguanamine, formguanamine, and formaldehyde, (iii) ) A mixture of the cocondensate of (ii) and a phenol resin such as a phenol formaldehyde condensate, (iv) Those obtained by further modifying (ii) and (iii) with paulownia oil, isomerized linseed oil, etc.
- cyanuric acid compound examples include cyanuric acid and melamine cyanurate.
- the compounding amount of the nitrogen-based flame retardant is appropriately selected according to the type of the nitrogen-based flame retardant, the other components of the curable resin composition, and the desired degree of flame retardancy, for example, an epoxy component, It is preferable to add in the range of 0.05 to 10 parts by mass in 100 parts by mass of the curable resin composition containing all of the curing agent, non-halogen flame retardant and other fillers and additives. It is preferable to blend in the range of 1 to 5 parts by mass.
- a metal hydroxide, a molybdenum compound or the like may be used in combination.
- the silicone flame retardant is not particularly limited as long as it is an organic compound containing a silicon atom, and examples thereof include silicone oil, silicone rubber, and silicone resin.
- the amount of the silicone-based flame retardant is appropriately selected depending on the type of the silicone-based flame retardant, the other components of the curable resin composition, and the desired degree of flame retardancy.
- an epoxy component It is preferable to add in the range of 0.05 to 20 parts by mass in 100 parts by mass of the curable resin composition containing all of the curing agent, non-halogen flame retardant and other fillers and additives.
- inorganic flame retardant examples include metal hydroxide, metal oxide, metal carbonate compound, metal powder, boron compound, and low melting point glass.
- metal hydroxide examples include aluminum hydroxide, magnesium hydroxide, dolomite, hydrotalcite, calcium hydroxide, barium hydroxide, zirconium hydroxide and the like.
- the metal oxide include, for example, zinc molybdate, molybdenum trioxide, zinc stannate, tin oxide, aluminum oxide, iron oxide, titanium oxide, manganese oxide, zirconium oxide, zinc oxide, molybdenum oxide, and cobalt oxide.
- metal carbonate compound examples include zinc carbonate, magnesium carbonate, calcium carbonate, barium carbonate, basic magnesium carbonate, aluminum carbonate, iron carbonate, cobalt carbonate, and titanium carbonate.
- the metal powder examples include aluminum, iron, titanium, manganese, zinc, molybdenum, cobalt, bismuth, chromium, nickel, copper, tungsten, and tin.
- boron compound examples include zinc borate, zinc metaborate, barium metaborate, boric acid, and borax.
- the low-melting-point glass include, for example, Shipley (Bokusui Brown), hydrated glass SiO 2 —MgO—H 2 O, PbO—B 2 O 3 system, ZnO—P 2 O 5 —MgO system, P 2 O 5 —B 2 O 3 —PbO—MgO system, P—Sn—O—F system, PbO—V 2 O 5 —TeO 2 system, Al 2 O 3 —H 2 O system, lead borosilicate system, etc.
- the glassy compound can be mentioned.
- the blending amount of the inorganic flame retardant is appropriately selected according to the type of the inorganic flame retardant, the other components of the curable resin composition, the desired degree of flame retardancy, for example, an epoxy component, It is preferable to mix in the range of 0.5 to 50 parts by mass in 100 parts by mass of the curable resin composition in which all of the curing agent, non-halogen flame retardant and other fillers and additives are blended. It is preferable to mix in the range of 30 parts by mass.
- organic metal salt flame retardant examples include ferrocene, acetylacetonate metal complex, organic metal carbonyl compound, organic cobalt salt compound, organic sulfonic acid metal salt, metal atom and aromatic compound or heterocyclic compound or an ionic bond or Examples thereof include a coordinated compound.
- the amount of the organic metal salt flame retardant is appropriately selected depending on the type of the organic metal salt flame retardant, the other components of the curable resin composition, and the desired degree of flame retardancy. , Preferably in the range of 0.005 to 10 parts by mass in 100 parts by mass of the curable resin composition containing all of the epoxy component, curing agent, non-halogen flame retardant and other fillers and additives. .
- an inorganic filler can be blended as necessary.
- the inorganic filler include fused silica, crystalline silica, alumina, silicon nitride, and aluminum hydroxide.
- fused silica When particularly increasing the blending amount of the inorganic filler, it is preferable to use fused silica.
- the fused silica can be used in either a crushed shape or a spherical shape.
- the filling rate is preferably in the range of 0.5 to 100 parts by mass in 100 parts by mass of the curable resin composition.
- electroconductive fillers such as silver powder and copper powder, can be used.
- various compounding agents such as a silane coupling agent, a release agent, a pigment, and an emulsifier can be added as necessary.
- the curable composition of the present invention can be obtained by uniformly mixing the above-described components.
- the curable composition of the present invention in which an epoxy component, a curing agent and, if necessary, a curing accelerator are blended can be easily made into a cured product by a method similar to a conventionally known method.
- Examples of the cured product include molded cured products such as laminates, cast products, adhesive layers, coating films, and films.
- curable composition of the present invention includes printed wiring board materials, resin casting materials, adhesives, build-up board interlayer insulating materials, build-up adhesive films, and the like.
- printed circuit boards insulating materials for electronic circuit boards, and adhesive films for build-up, passive parts such as capacitors and active parts such as IC chips are embedded in so-called electronic parts. It can be used as an insulating material for a substrate.
- the printed wiring board material and the adhesive film for buildup from the characteristics, such as high heat resistance and a flame retardance.
- the varnish-like curable resin composition containing the organic solvent (C) is further blended with the organic solvent (C) to form a varnish.
- a method of impregnating the reinforced resin composition into a reinforcing base material and stacking a copper foil to heat-press is mentioned.
- the reinforcing substrate that can be used here include paper, glass cloth, glass nonwoven fabric, aramid paper, aramid cloth, glass mat, and glass roving cloth.
- the varnish-like curable resin composition described above is first heated at a heating temperature corresponding to the solvent type used, preferably 50 to 170 ° C., so that a prepreg as a cured product is obtained. Get.
- the mass ratio of the resin composition and the reinforcing substrate used at this time is not particularly limited, but it is usually preferable that the resin content in the prepreg is adjusted to 20 to 60% by mass.
- the prepreg obtained as described above is laminated by a conventional method, and a copper foil is appropriately stacked, and heat-pressed at 170 to 250 ° C. for 10 minutes to 3 hours under a pressure of 1 to 10 MPa, A desired printed circuit board can be obtained.
- a cationic polymerization catalyst is used as a catalyst for the curable resin composition, and further, a pigment, talc, and a filler are added to form a resist ink composition. Then, after apply
- the curable composition of the present invention is used as a conductive paste, for example, a method of dispersing fine conductive particles in the curable resin composition to obtain a composition for an anisotropic conductive film, which is liquid at room temperature.
- a method of dispersing fine conductive particles in the curable resin composition to obtain a composition for an anisotropic conductive film, which is liquid at room temperature.
- examples thereof include a paste resin composition for circuit connection and an anisotropic conductive adhesive.
- the curable resin composition appropriately blended with rubber, filler, etc. is applied to a wiring substrate on which a circuit is formed by a spray coating method, a curtain After applying using a coating method or the like, it is cured. Then, after drilling a predetermined through-hole part etc. as needed, it treats with a roughening agent, forms the unevenness
- the plating method electroless plating or electrolytic plating treatment is preferable, and examples of the roughening agent include an oxidizing agent, an alkali, and an organic solvent.
- a build-up base can be obtained by alternately building up and forming the resin insulating layer and the conductor layer having a predetermined circuit pattern.
- the through-hole portion is formed after the outermost resin insulating layer is formed.
- a resin-coated copper foil obtained by semi-curing the resin composition on a copper foil is heat-pressed at 170 to 250 ° C. on a wiring board on which a circuit is formed, thereby forming a roughened surface and performing plating treatment. It is also possible to produce a build-up substrate by omitting the process.
- the method for producing an adhesive film for buildup from the curable composition of the present invention is, for example, applied for a multilayer printed wiring board by applying the curable composition of the present invention on a support film to form a resin composition layer.
- the method of setting it as an adhesive film is mentioned.
- the adhesive film is softened under the lamination temperature condition (usually 70 ° C. to 140 ° C.) in the vacuum laminating method, and at the same time as laminating the circuit board, It is important to show fluidity (resin flow) capable of filling the via hole or through hole in the substrate, and it is preferable to blend the above-described components so as to exhibit such characteristics.
- lamination temperature condition usually 70 ° C. to 140 ° C.
- the diameter of the through hole of the multilayer printed wiring board is usually 0.1 to 0.5 mm, and the depth is usually 0.1 to 1.2 mm. Usually, it is preferable that the resin can be filled in this range. When laminating both surfaces of the circuit board, it is desirable to fill about 1/2 of the through hole.
- the method for producing the adhesive film described above is, after preparing the varnish-like curable resin composition of the present invention, coating the varnish-like composition on the surface of the support film (y), Further, it can be produced by drying the organic solvent by heating or blowing hot air to form the layer (x) of the curable resin composition.
- the thickness of the layer (x) to be formed is usually not less than the thickness of the conductor layer. Since the thickness of the conductor layer of the circuit board is usually in the range of 5 to 70 ⁇ m, the thickness of the resin composition layer is preferably 10 to 100 ⁇ m.
- the layer (x) in this invention may be protected with the protective film mentioned later.
- a protective film By protecting with a protective film, it is possible to prevent dust and the like from being attached to the surface of the resin composition layer and scratches.
- the above-mentioned support film and protective film are made of polyolefin such as polyethylene, polypropylene and polyvinyl chloride, polyethylene terephthalate (hereinafter sometimes abbreviated as “PET”), polyester such as polyethylene naphthalate, polycarbonate, polyimide, and further. Examples thereof include metal foil such as pattern paper, copper foil, and aluminum foil.
- the support film and the protective film may be subjected to a release treatment in addition to the mud treatment and the corona treatment.
- the thickness of the support film is not particularly limited, but is usually 10 to 150 ⁇ m, preferably 25 to 50 ⁇ m.
- the thickness of the protective film is preferably 1 to 40 ⁇ m.
- the support film (y) described above is peeled off after being laminated on a circuit board or after forming an insulating layer by heat curing. If the support film (y) is peeled after the adhesive film is heat-cured, adhesion of dust and the like in the curing process can be prevented. In the case of peeling after curing, the support film is usually subjected to a release treatment in advance.
- a method for producing a multilayer printed wiring board using the adhesive film obtained as described above is, for example, when the layer (x) is protected with a protective film, after peeling these layers ( x) is laminated on one side or both sides of the circuit board so as to be in direct contact with the circuit board, for example, by a vacuum laminating method.
- the laminating method may be a batch method or a continuous method using a roll.
- the adhesive film and the circuit board may be heated (preheated) as necessary before lamination.
- the laminating conditions are a pressure bonding temperature (lamination temperature) of preferably 70 to 140 ° C. and a pressure bonding pressure of preferably 1 to 11 kgf / cm 2 (9.8 ⁇ 10 4 to 107.9 ⁇ 10 4 N / m 2 ). Lamination is preferably performed under a reduced pressure of 20 mmHg (26.7 hPa) or less.
- the composition obtained by the above method may be heated in a temperature range of about 20 to 250 ° C.
- GPC The measurement conditions are as follows. Measuring device: “HLC-8220 GPC” manufactured by Tosoh Corporation Column: Guard column “HXL-L” manufactured by Tosoh Corporation + “TSK-GEL G2000HXL” manufactured by Tosoh Corporation + “TSK-GEL G2000HXL” manufactured by Tosoh Corporation + Tosoh Corporation “TSK-GEL G3000HXL” + “TSK-GEL G4000HXL” manufactured by Tosoh Corporation Detector: RI (Differential refraction diameter)
- Data processing “GPC-8020 Model II version 4.10” manufactured by Tosoh Corporation Measurement conditions: Column temperature 40 ° C Developing solvent Tetrahydrofuran Flow rate 1.0 ml / min Standard: The following monodisperse polystyrene having a known molecular weight was used according to the measurement manual of “GPC-8020 model II version 4.10”.
- Example 1 In a flask equipped with a thermometer, dropping funnel, condenser, fractionator, and stirrer, 216 parts by mass of ⁇ -naphthol (1.50 mol), 146 parts by mass of a 37% by mass aqueous formaldehyde solution (1.80 mol), isopropyl 121 parts by mass of alcohol and 46 parts by mass (0.56 mol) of a 49% aqueous sodium hydroxide solution were added and stirred at room temperature while blowing nitrogen. Then, it heated up at 80 degreeC and stirred for 1 hour. After completion of the reaction, 40 parts by mass of first sodium phosphate was added for neutralization, and then cooled and the crystalline substance was filtered off.
- Example 2 Except that 216 parts by mass (1.50 mol) of ⁇ -naphthol was changed to 144 parts by mass (1.00 mol) of ⁇ -naphthol and 72 parts by mass (0.50 mol) of ⁇ -naphthol, 199 parts by mass of the epoxy resin mixture (A-3) was obtained.
- the resulting epoxy resin mixture (A-3) had a softening point of 133 ° C. (B & R method), a melt viscosity (measurement method: ICI viscometer method, measurement temperature: 150 ° C.) of 115.0 dPa ⁇ s, and an epoxy equivalent of 240. Gram / equivalent.
- the GPC chart of the resulting epoxy resin mixture (A-3) is shown in FIG.
- Example 3 Except that 216 parts by mass (1.50 mol) of ⁇ -naphthol was changed to 108 parts by mass (0.75 mol) of ⁇ -naphthol and 108 parts by mass (0.75 mol) of ⁇ -naphthol, 200 parts by mass of the epoxy resin mixture (A-4) was obtained.
- the resulting epoxy resin mixture (A-4) had a softening point of 114 ° C. (B & R method), a melt viscosity (measurement method: ICI viscometer method, measurement temperature: 150 ° C.) of 80.0 dPa ⁇ s, and an epoxy equivalent of 236. Gram / equivalent.
- Comparative Example 1 A flask equipped with a thermometer, dropping funnel, condenser, fractionating tube, and stirrer was charged with 505 parts by mass of ⁇ -naphthol (3.50 mol), 158 parts by mass of water, and 5 parts by mass of oxalic acid. The mixture was stirred while raising the temperature in 45 minutes. Subsequently, 177 parts by mass (2.45 mol) of a 42 mass% formalin aqueous solution was added dropwise over 1 hour. After completion of dropping, the mixture was further stirred at 100 ° C. for 1 hour, and then heated to 180 ° C. in 3 hours.
- naphthol resin (A-5) After completion of the reaction, water remaining in the reaction system was removed under reduced pressure by heating to obtain 498 parts by mass of naphthol resin (A-5).
- the obtained naphthol resin (A-5) had a softening point of 133 ° C. (B & R method) and a hydroxyl group equivalent of 154 g / equivalent. Moreover, the calixarene structure was not able to be confirmed from the result of MS spectrum.
- Examples 4 to 6 and Comparative Example 2 (A-2), (A-3), (A-4), (A-6) as an epoxy component, TD-2131 manufactured by DIC as a phenol resin (phenol novolac type phenol resin, hydroxyl equivalent: 104 g / eq)
- the composition shown in Table 1 was blended using triphenylphosphine (TPP) as a curing accelerator, molded by pressing at a temperature of 150 ° C. for 10 minutes, and then post-cured at a temperature of 175 ° C. for 5 hours.
- TPP triphenylphosphine
- an evaluation sample was prepared by the following method using the composition, and the heat resistance and the coefficient of thermal expansion were measured by the following method.
- thermomechanical analysis was performed in a compression mode using a thermomechanical analyzer (TMA: “SS-6100” manufactured by Seiko Instruments Inc.). (Measurement weight: 88.8 mN, temperature increase rate: twice at 3 ° C./min, measurement temperature range: ⁇ 50 ° C. to 300 ° C.) Linear expansion coefficient (temperature range from 40 ° C. to 60 ° C.) in the second measurement Average expansion coefficient).
- TD-2131 phenol novolac resin (“TD-2131” manufactured by DIC, hydroxyl group equivalent: 104 g / eq), TPP: Triphenylphosphine
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Abstract
Description
プリント配線板は、エポキシ樹脂を主剤とした硬化性樹脂組成物とガラス織布とを硬化・一体成形したものが一般的であり高耐熱化、低熱膨張化を達成するためにエポキシ樹脂の改良が求められている。
本発明の新規エポキシ化合物は、前記した通り、下記構造式1
また、前記構造式1中のnは2~10の整数であるが、化学構造の対象性に優れ耐熱性の向上効果が顕著に現れる点から2,4,6,又は8であることが好ましく、特に4であることが最も好ましい。
即ち、ナフトール化合物とホルムアルデヒドとを両者のモル比(ナフトール化合物/ホルムアルデヒド)が1.0/1.0~1.0/2.0となる割合で、塩基性触媒の存在下に反応させてカリックスアレーン型のナフトール化合物を得(工程1)、次いで、これにエピハロヒドリンを塩基性触媒存在下に反応させてエポキシ化する(工程2)方法により製造することができる。
一方、工程1で用いられるホルムアルデヒド源としては、例えば、ホルマリン、パラホルムアルデヒド、トリオキサン等が挙げられる。ここで、ホルマリンは水希釈性や製造時の作業性の点から30~60質量%のホルマリンであることが好ましい。
測定装置 :東ソー株式会社製「HLC-8220 GPC」、
カラム:東ソー株式会社製ガードカラム「HXL-L」
+東ソー株式会社製「TSK-GEL G2000HXL」
+東ソー株式会社製「TSK-GEL G2000HXL」
+東ソー株式会社製「TSK-GEL G3000HXL」
+東ソー株式会社製「TSK-GEL G4000HXL」
検出器: RI(示差屈折径)
データ処理:東ソー株式会社製「GPC-8020モデルIIバージョン4.10」
測定条件: カラム温度 40℃
展開溶媒 テトラヒドロフラン
流速 1.0ml/分
標準 : 前記「GPC-8020モデルIIバージョン4.10」の測定マニュアルに準拠して、分子量が既知の下記の単分散ポリスチレンを用いた。
(使用ポリスチレン)
東ソー株式会社製「A-500」
東ソー株式会社製「A-1000」
東ソー株式会社製「A-2500」
東ソー株式会社製「A-5000」
東ソー株式会社製「F-1」
東ソー株式会社製「F-2」
東ソー株式会社製「F-4」
東ソー株式会社製「F-10」
東ソー株式会社製「F-20」
東ソー株式会社製「F-40」
東ソー株式会社製「F-80」
東ソー株式会社製「F-128」
試料 : 樹脂固形分換算で1.0質量%のテトラヒドロフラン溶液をマイクロフィルターでろ過したもの(50μl)。
3)13C-NMR:測定条件は以下の通り。
装置:日本電子(株)製 AL-400
測定モード:SGNNE(NOE消去の1H完全デカップリング法)
溶媒 :ジメチルスルホキシド
パルス角度:45℃パルス
試料濃度 :30wt%
積算回数 :10000回
4)MS :日本電子株式会社製 二重収束型質量分析装置 AX505H(FD505H)
温度計、滴下ロート、冷却管、分留管、撹拌器を取り付けたフラスコに、α-ナフトール216質量部(1.50モル)、37質量%ホルムアルデヒド水溶液146質量部(1.80モル)、イソプロピルアルコール121質量部、49%水酸化ナトリウム水溶液46質量部(0.56モル)を仕込み、室温下、窒素を吹き込みながら撹拌した。その後、80℃に昇温し1時間攪拌した。反応終了後、第1リン酸ソーダ40質量部を添加して中和した後、冷却し結晶物をろ別した。その後、水200質量部で3回洗浄を繰り返した後に、加熱減圧下乾燥してナフトール化合物(A-1)224質量部得た。得られたナフトール化合物(A-1)の水酸基当量は156グラム/当量であった。得られたナフトール化合物のGPCチャートを図1に、MSスペクトルを図2に示す。
α-ナフトール216質量部(1.50モル)をα-ナフトール144質量部(1.00モル)とβ-ナフトール72質量部(0.50モル)にした以外は実施例1と同様にして、エポキシ樹脂混合物(A-3)199質量部を得た。得られたエポキシ樹脂混合物(A-3)の軟化点は133℃(B&R法)、溶融粘度(測定法:ICI粘度計法、測定温度:150℃)は115.0dPa・s、エポキシ当量は240グラム/当量であった。得られたエポキシ樹脂混合物(A-3)のGPCチャートを図7に、13C-NMRチャートを図7に、MSスペクトルを図8に示す。MSスペクトルから前記構造式1においてn=4を示す848のピークが検出され、また、GPCチャートから前記構造式1におけるn=4体の含有率は34.1%であった。従って、前記エポキシ樹脂混合物(A-3)は、前記構造式1においてn=4のエポキシ化合物とα-ナフトール/β-ナフトール共縮合型ノボラックのポリグリシジルエーテルとの混合物であることが判明した。
α-ナフトール216質量部(1.50モル)をα-ナフトール108質量部(0.75モル)とβ-ナフトール108質量部(0.75モル)にした以外は実施例1と同様にして、エポキシ樹脂混合物(A-4)200質量部を得た。得られたエポキシ樹脂混合物(A-4)の軟化点は114℃(B&R法)、溶融粘度(測定法:ICI粘度計法、測定温度:150℃)は80.0dPa・s、エポキシ当量は236グラム/当量であった。得られたエポキシ樹脂混合物(A-4)のGPCチャートを図9に示す。GPCチャートから前記構造式1におけるn=4体の含有率は6.9%であった。
温度計、滴下ロート、冷却管、分留管、撹拌器を取り付けたフラスコに、α-ナフトール505質量部(3.50モル)、水158質量部、蓚酸5質量部を仕込み、室温から100℃まで45分で昇温しながら撹拌した。続いて、42質量%ホルマリン水溶液177質量部(2.45モル)を1時間要して滴下した。滴下終了後、さらに100℃で1時間攪拌し、その後180℃まで3時間で昇温した。反応終了後、反応系内に残った水分を加熱減圧下に除去しナフトール樹脂(A-5)498質量部を得た。得られたナフトール樹脂(A-5)の軟化点は133℃(B&R法)、水酸基当量は154グラム/当量であった。また、MSスペクトルの結果からカリックスアレーン構造は確認できなかった。
エポキシ成分として、(A-2)、(A-3)、(A-4)、(A-6)、フェノール樹脂としてDIC製TD-2131(フェノールノボラック型フェノール樹脂、水酸基当量:104g/eq)、硬化促進剤としてトリフェニルホスフィン(TPP)を用いて表1に示した組成で配合し、プレスで150℃の温度で10分間成型した後、175℃の温度で5時間後硬化して作成した。硬化物の物性は、前記組成物を用いて、評価用サンプルを下記の方法で作成し、耐熱性、熱膨張率を下記の方法で測定し結果を表1に示した。
粘弾性測定装置(DMA:レオメトリック社製固体粘弾性測定装置RSAII、レクタンギュラーテンション法;周波数1Hz、昇温速度3℃/min)を用いて、弾性率変化が最大となる(tanδ変化率が最も大きい)温度をガラス転移温度として評価した。
熱機械分析装置(TMA:セイコーインスツルメント社製「SS-6100」)を用いて、圧縮モードで熱機械分析を行った。(測定架重:88.8mN、昇温速度:3℃/分で2回、測定温度範囲:-50℃から300℃) 2回目の測定における、線膨張係数(40℃から60℃の温度範囲における平均膨張係数)を評価した。
Claims (5)
- エポキシ化合物(A)と硬化剤(B)とを必須成分とする硬化性樹脂組成物であって、前記エポキシ化合物(A)として、請求項1記載の新規エポキシ化合物を用いることを特徴とする硬化性組成物。
- エポキシ化合物(A)及び硬化剤(B)に加え、更に、前記エポキシ化合物(A)の他のナフタレン系エポキシ樹脂(A’)を用いる請求項2記載の硬化性組成物。
- エポキシ化合物(A)とその他のナフトールノボラック型エポキシ樹脂(A’)との存在割合が、両者の混合物をGPCにより測定した場合における、前記エポキシ化合物(A)の他のナフタレン系エポキシ樹脂(A’)の面積比率基準の含有率が3~50%となる割合である請求項3記載の硬化性樹脂組成物。
- 請求項2、3、又は4記載の硬化性組成物を硬化反応させてなることを特徴とする硬化物。
Priority Applications (5)
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KR1020127023567A KR101709245B1 (ko) | 2010-08-19 | 2011-08-03 | 에폭시 화합물, 경화성 조성물, 및 그 경화물 |
US13/816,084 US8519065B2 (en) | 2010-08-19 | 2011-08-03 | Epoxy compound, curable composition, and cured product thereof |
CN201180039933.6A CN103097426B (zh) | 2010-08-19 | 2011-08-03 | 环氧化合物、固化性组合物及其固化物 |
JP2012512122A JP5071602B2 (ja) | 2010-08-19 | 2011-08-03 | エポキシ化合物、硬化性組成物、及びその硬化物 |
EP11818077.7A EP2557103B1 (en) | 2010-08-19 | 2011-08-03 | Epoxy compound, curable composition, and cured product thereof |
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JP2010-183901 | 2010-08-19 | ||
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EP (1) | EP2557103B1 (ja) |
JP (1) | JP5071602B2 (ja) |
KR (1) | KR101709245B1 (ja) |
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WO2013042438A1 (ja) * | 2011-09-21 | 2013-03-28 | Dic株式会社 | エポキシ樹脂、硬化性樹脂組成物、その硬化物、及びプリント配線基板 |
JP2013067697A (ja) * | 2011-09-21 | 2013-04-18 | Dic Corp | ナフトール樹脂、硬化性樹脂組成物、その硬化物、及びプリント配線基板 |
JP2013185080A (ja) * | 2012-03-08 | 2013-09-19 | Dic Corp | 硬化性樹脂組成物、その硬化物、及びプリント配線基板 |
JP2013185082A (ja) * | 2012-03-08 | 2013-09-19 | Dic Corp | 硬化性樹脂組成物、その硬化物、及びプリント配線基板 |
JP2013245287A (ja) * | 2012-05-25 | 2013-12-09 | Dic Corp | 硬化性組成物、硬化物、及びプリント配線基板 |
JP2013253146A (ja) * | 2012-06-06 | 2013-12-19 | Dic Corp | 硬化性組成物、硬化物、及びプリント配線基板 |
JP2013256627A (ja) * | 2012-06-14 | 2013-12-26 | Dic Corp | 硬化性組成物、硬化物、及びプリント配線基板 |
JP2014005338A (ja) * | 2012-06-22 | 2014-01-16 | Dic Corp | 硬化性組成物、硬化物、及びプリント配線基板 |
JP2014024942A (ja) * | 2012-07-26 | 2014-02-06 | Dic Corp | 硬化性組成物、硬化物、及びプリント配線基板 |
JP2014024977A (ja) * | 2012-07-27 | 2014-02-06 | Dic Corp | 硬化性樹脂組成物、硬化物、及びプリント配線基板 |
JP2014037473A (ja) * | 2012-08-14 | 2014-02-27 | Dic Corp | 硬化性樹脂組成物、硬化物、及びプリント配線基板 |
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WO2015008560A1 (ja) * | 2013-07-19 | 2015-01-22 | Dic株式会社 | フェノール性水酸基含有化合物、感光性組成物、レジスト用組成物、レジスト塗膜、硬化性組成物、レジスト下層膜用組成物、及びレジスト下層膜 |
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- 2011-08-03 EP EP11818077.7A patent/EP2557103B1/en active Active
- 2011-08-03 KR KR1020127023567A patent/KR101709245B1/ko active IP Right Grant
- 2011-08-03 CN CN201180039933.6A patent/CN103097426B/zh active Active
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US20140287241A1 (en) * | 2011-09-21 | 2014-09-25 | Dic Corporation | Epoxy resin, curable resin composition and cured product thereof, and printed wiring board |
JP2013067697A (ja) * | 2011-09-21 | 2013-04-18 | Dic Corp | ナフトール樹脂、硬化性樹脂組成物、その硬化物、及びプリント配線基板 |
WO2013042438A1 (ja) * | 2011-09-21 | 2013-03-28 | Dic株式会社 | エポキシ樹脂、硬化性樹脂組成物、その硬化物、及びプリント配線基板 |
US9125309B2 (en) * | 2011-09-21 | 2015-09-01 | Dic Corporation | Epoxy resin, curable resin composition and cured product thereof, and printed wiring board |
JP2013185080A (ja) * | 2012-03-08 | 2013-09-19 | Dic Corp | 硬化性樹脂組成物、その硬化物、及びプリント配線基板 |
JP2013185082A (ja) * | 2012-03-08 | 2013-09-19 | Dic Corp | 硬化性樹脂組成物、その硬化物、及びプリント配線基板 |
JP2013245287A (ja) * | 2012-05-25 | 2013-12-09 | Dic Corp | 硬化性組成物、硬化物、及びプリント配線基板 |
JP2013253146A (ja) * | 2012-06-06 | 2013-12-19 | Dic Corp | 硬化性組成物、硬化物、及びプリント配線基板 |
JP2013256627A (ja) * | 2012-06-14 | 2013-12-26 | Dic Corp | 硬化性組成物、硬化物、及びプリント配線基板 |
JP2014005338A (ja) * | 2012-06-22 | 2014-01-16 | Dic Corp | 硬化性組成物、硬化物、及びプリント配線基板 |
JP2014024942A (ja) * | 2012-07-26 | 2014-02-06 | Dic Corp | 硬化性組成物、硬化物、及びプリント配線基板 |
JP2014024977A (ja) * | 2012-07-27 | 2014-02-06 | Dic Corp | 硬化性樹脂組成物、硬化物、及びプリント配線基板 |
JP2014037473A (ja) * | 2012-08-14 | 2014-02-27 | Dic Corp | 硬化性樹脂組成物、硬化物、及びプリント配線基板 |
WO2017098881A1 (ja) * | 2015-12-11 | 2017-06-15 | Dic株式会社 | ノボラック型樹脂及びレジスト膜 |
JPWO2017098881A1 (ja) * | 2015-12-11 | 2017-12-07 | Dic株式会社 | ノボラック型樹脂及びレジスト膜 |
Also Published As
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TW201213376A (en) | 2012-04-01 |
TWI500649B (zh) | 2015-09-21 |
CN103097426B (zh) | 2016-03-02 |
JP5071602B2 (ja) | 2012-11-14 |
KR20130108062A (ko) | 2013-10-02 |
JPWO2012023435A1 (ja) | 2013-10-28 |
US20130144030A1 (en) | 2013-06-06 |
EP2557103A1 (en) | 2013-02-13 |
EP2557103A4 (en) | 2013-12-18 |
US8519065B2 (en) | 2013-08-27 |
KR101709245B1 (ko) | 2017-02-23 |
EP2557103B1 (en) | 2014-11-26 |
CN103097426A (zh) | 2013-05-08 |
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