WO2021199450A1 - 硬化触媒、樹脂組成物、封止材、接着剤、及び硬化物 - Google Patents
硬化触媒、樹脂組成物、封止材、接着剤、及び硬化物 Download PDFInfo
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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
- C08G59/4007—Curing agents not provided for by the groups C08G59/42 - C08G59/66
- C08G59/4014—Nitrogen containing 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
- C08G59/68—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 catalysts used
- C08G59/686—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 catalysts used containing nitrogen
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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
- C08G59/182—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 using pre-adducts of epoxy compounds with curing agents
- C08G59/184—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 using pre-adducts of epoxy compounds with curing agents with amines
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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
- C08G59/42—Polycarboxylic acids; Anhydrides, halides or low molecular weight esters thereof
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- C—CHEMISTRY; METALLURGY
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- 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
- C08G59/42—Polycarboxylic acids; Anhydrides, halides or low molecular weight esters thereof
- C08G59/4215—Polycarboxylic acids; Anhydrides, halides or low molecular weight esters thereof cycloaliphatic
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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
- C08G59/44—Amides
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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
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J163/00—Adhesives based on epoxy resins; Adhesives based on derivatives of epoxy resins
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- H10W74/47—
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- H10W74/473—
Definitions
- the present invention relates to a curing catalyst, a resin composition, a sealing material, an adhesive, and a cured product.
- the one-component epoxy resin adhesive contains a main agent and a curing catalyst, and the curing catalyst is considered to be the material that most affects the pot life and curing conditions of the adhesive.
- various curing catalysts used for one-component epoxy resin adhesives are commercially available, but a type in which a thermosetting resin or a thermoplastic resin is modified with a functional group such as amine (Japanese Patent Laid-Open No. 59-053526).
- Japanese Patent Application Laid-Open No. 3-177418 Japanese Patent Laid-Open No. 3-177418) and a type in which an amine-based curing catalyst is covered with a polymer shell (Japanese Patent Laid-Open No. 2000-080146) are the mainstream.
- An object of the present invention is to provide a curing catalyst, a resin composition, a sealing material, an adhesive, and a cured product having good properties.
- One embodiment of the present invention is an epoxy resin curing catalyst containing an epoxy imidazole adduct having the following structural formula (I).
- R 1 is a group selected from hydrogen, phenyl, and alkyls C1 to C17, and R 2 and R 3 are groups independently selected from hydrogen and alkyls C1 to C6, respectively. Is.) It may contain an epoxyimidazole adduct having the following structural formula (Io) or (Im).
- R 1 is a group selected from hydrogen, phenyl, and alkyls C1 to C17, and R 2 and R 3 are groups independently selected from hydrogen and alkyls C1 to C6, respectively. Is.) (In the formula, R 1 is a group selected from hydrogen, phenyl, and alkyls C1 to C17, and R 2 and R 3 are groups independently selected from hydrogen and alkyls C1 to C6, respectively. Is.)
- R 1 may be a group selected from the group consisting of hydrogen and alkyls C1 to C6, and R 1 may be a group selected from the group consisting of alkyls C8 to C17.
- the epoxy imidazole adduct may be selected from the group consisting of the following compounds 1 to 4.
- Another embodiment of the present invention is a resin composition containing the above-mentioned curing catalyst and an epoxy resin.
- the epoxy resin curing agent may be further contained.
- the curing agent may be an acid anhydride or a phenolic curing agent.
- a further embodiment of the present invention is a sealing material or adhesive containing the above resin composition.
- a further embodiment of the present invention is a cured product of any of the above resin compositions.
- the curing catalyst contains an epoxy imidazole adduct having the following structural formula (I).
- the curing catalyst means a catalyst having a function of accelerating the initiation and / or progress of the polymerization when the main agent self-polymerizes or the main agent and the curing agent polymerize. do.
- R 1 is a group selected from hydrogen, phenyl, and alkyls C1 to C17
- R 2 and R 3 are groups independently selected from hydrogen and alkyls C1 to C6, respectively.
- R 1 may be a group selected from phenyl and alkyls C1 to C12.
- the alkyl groups of R 2 and R 3 may have a linear structure, a branched structure, or a cyclic structure.
- the compound (I) contains the compound (Io), the compound (Im), and the compound (Ip) shown in FIG.
- R 1 be a group selected from alkyls of C8 to C17, particularly C8 to C12, because the reaction peak top temperature in curing the epoxy resin composition can be shifted to the lower temperature side.
- the reaction peak top temperature is preferably 180 ° C. or lower, more preferably 150 ° C. or lower, still more preferably 130 ° C. or lower in the measuring method of Examples described later.
- R 1 is a group selected from hydrogen and alkyls of C1 to C6, particularly hydrogen and C1 to C3, from the viewpoint of pot life.
- the pot life is preferably 0.7 to 5.0, more preferably 0.7 to 3.0, and even more preferably 0.7 to 2.0 in the measuring method of Examples described later. ..
- the epoxy amine adduct is a compound obtained by reacting a biphenyl compound having one epoxy group with an amine.
- the biphenyl compound having one epoxy group may have another substituent, for example, a chain alkyl group (eg, methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, sec- Butyl group, tert-butyl group, isobutyl group, n-pentyl group, isopentyl group, neopentyl group, tert-pentyl group, n-hexyl group, isohexyl group, n-heptyl group, n-octyl group, etc.), cycloalkyl group (For example, cyclopropyl group, cyclobutyl group, cyclopentyl group, cyclohexyl group, cycloheptyl group, cyclooctyl group, etc.), allyl group, aryl group (for example, phenyl group, benzyl group, etc.
- the imidazole compound to be adducted is not particularly limited, but imidazole, 2-methylimidazole, 2-undecylimidazole, 2-heptadecylimidazole, 2-phenylimidazole, and 2-ethyl-4-methylimidazole are preferable, and curability and pot life are preferable.
- 2-Methylimidazole and 2-undecylimidazole are more preferable from the viewpoint of compatibility between the two. Examples of commercially available products include 2MZ-H, C11Z, C17Z, 2PZ, and 2E4MZ manufactured by Shikoku Kasei Kogyo Co., Ltd. as the imidazole compound to be adducted.
- one epoxy group to be replaced with biphenyl is preferably an ortho-position or a meta-position, and more preferably an ortho-position from the viewpoint of melting point.
- the balance between the diffusion of the curing catalyst and the curing reaction at 100 ° C. or higher is the best.
- This epoxyimidazole adduct is, for example, a methylimidazole derivative having an imidazole ring having the same modification as the above compound, 2- ⁇ [([1,1'-biphenyl] -2-yl) oxy] methyl ⁇ oxylane, 2- ⁇ .
- the production method is not limited to this, and it can be produced by a method known to those skilled in the art.
- the solvent used for the synthesis reaction of epoxyimidazole adduct is not particularly limited, but for example, hydrocarbons such as benzene, toluene, xylene, cyclohexane, hexane, heptane, octane, mineral spirit, naphtha; dimethyl ether, diethyl ether, ethyl methyl.
- Chain ethers such as ethers; Cyclic ethers such as tetrahydrofuran and tetrahydropyran; nitriles such as acetonitrile, propionitrile and butyronitrile; amides such as acetamido, formamide, N, N-dimethylacetamide, N, N-dimethylformamide Classes; Sulfoxides such as dimethylsulfoxide and diethylsulfoxide; Ketones such as acetone, methylethylketone (MEK), methylisobutylketone (MIBK) and isophorone; Esters such as ethyl acetate, acetic acid-n-butyl and propylene glycol monomethyl ether acetate Alcohols such as methanol, ethanol, isopropanol, n-butanol, butyl cellosolve, butyl carbitol; water and the like. These solvents may be used alone or in combination
- the pot life is long when used as a curing catalyst for an epoxy resin, and a uniform coating film can be formed.
- moisture resistance deterioration of the cured product is unlikely to occur, and the water absorption rate is low.
- the principle of these effects is not limited to the following theory, but it is considered that the pot life is extended because the affinity between the biphenyl skeleton contained in the curing catalyst at room temperature and the epoxy resin is low. Further, at 100 ° C. or higher, the affinity between the biphenyl skeleton and the epoxy resin becomes high, so that the diffusion of the curing catalyst and the curing reaction proceed in a well-balanced manner.
- the residual amount of the unreacted curing catalyst is reduced, and a uniform coating film can be formed by curing. If an unreacted curing catalyst exists as agglomerates after curing, the agglomerates easily absorb water, which causes deterioration of the moisture resistance of the cured product. By using the curing catalyst of the present invention, it is considered that the unreacted curing catalyst does not easily remain as agglomerates, so that moisture resistance deterioration can be reduced.
- the melting point of this epoxy imidazole adduct can be determined by the following procedure using, for example, a differential scanning calorimetry device (DSC 204 F1 Phoenix (registered trademark)) (manufactured by NETZSCH).
- DSC 204 F1 Phoenix (registered trademark) manufactured by NETZSCH.
- NETZSCH differential scanning calorimetry device
- 5 mg of each resin composition is weighed in an aluminum pan, sealed with an aluminum lid, and then a hole is made in the center of the lid with a needle to prepare a measurement sample.
- the heat flow (mW / mg) of this measurement sample is measured under a nitrogen atmosphere (100 mL / min) under the conditions of a temperature range of 25 ° C. to 250 ° C. and a heating rate of 10 ° C./min.
- the temperature at which the peak top is obtained on the graph is calculated by analysis software (NETZSCH Proteus-Thermal Analysis version 6.1.0B), and the temperature is referred to as
- the curing catalyst disclosed herein may contain one or more of the epoxy imidazole adducts described above.
- one or more other curing catalysts other than the above-mentioned epoxy imidazole adduct may be contained.
- curing catalysts are not particularly limited, but are commercially available curing catalysts used for one-component epoxy resin-based adhesives, such as a type of curing catalyst in which a thermoplastic resin is modified with a functional group such as amine, or an amine-based curing catalyst. Examples thereof include, but are not limited to, a type of curing catalyst in which the curing agent is covered with a polymer shell.
- the ratio of the above-mentioned epoxyimidazole adduct is not particularly limited, but is preferably 1 to 100 wt% and 10 to 100 wt% with respect to the total amount of the curing catalyst. Is more preferable, 30 to 100 wt% is further preferable, 50 to 100 wt% is particularly preferable, and 70 to 100 wt% is most preferable.
- the epoxy resin is not particularly limited, and may be a monofunctional epoxy resin or a polyfunctional epoxy resin.
- the monofunctional epoxy resin is an epoxy resin having one epoxy group, and has been conventionally used as a reactive diluent for adjusting the viscosity of an epoxy resin composition.
- Monofunctional epoxy resins are roughly classified into aliphatic monofunctional epoxy resins and aromatic monofunctional epoxy resins. From the viewpoint of volatility, the monofunctional epoxy resin preferably has an epoxy equivalent of 180 to 400 g / eq.
- aromatic monofunctional epoxy resins include phenylglycidyl ether, cresylglycidyl ether, ps-butylphenylglycidyl ether, styrene oxide, p-tert-butylphenylglycidyl ether, o-phenylphenol glycidyl ether, m-.
- aromatic monofunctional epoxy resins include phenylglycidyl ether, cresylglycidyl ether, ps-butylphenylglycidyl ether, styrene oxide, p-tert-butylphenylglycidyl ether, o-phenylphenol glycidyl ether, m-.
- examples thereof include, but are not limited to, phenylphenol glycidyl ether, p-phenylphenol glycidyl ether, and N-glycidyl phthalimide. Of these,
- Examples of aliphatic monofunctional epoxy resins are n-butyl glycidyl ether, 2-ethylhexyl glycidyl ether, ⁇ -pinene oxide, allyl glycidyl ether, 1-vinyl-3,4-epoxycyclohexane, 1,2-epoxy-4. -(2-Methyloxylanyl) -1-methylcyclohexane, 1,3-bis (3-glycidoxypropyl) -1,1,3,3-tetramethyldisiloxane, neodecanoic acid glycidyl ester and the like. However, it is not limited to these.
- the polyfunctional epoxy resin refers to an epoxy resin having two or more epoxy groups. Therefore, the resin composition of the present disclosure may include a bifunctional epoxy resin, a trifunctional epoxy resin, a tetrafunctional epoxy resin, and the like. Polyfunctional epoxy resins are roughly classified into aliphatic polyfunctional epoxy resins and aromatic polyfunctional epoxy resins.
- aliphatic polyfunctional epoxy resins examples include (poly) ethylene glycol diglycidyl ether, (poly) propylene glycol diglycidyl ether, butanediol diglycidyl ether, neopentyl glycol diglycidyl ether, and 1,6-hexanediol diglycidyl.
- Diepoxy resins such as ether, trimethylolpropane diglycidyl ether, polytetramethylene ether glycol diglycidyl ether, glycerin diglycidyl ether, neopentyl glycol diglycidyl ether, cyclohexane type diglycidyl ether, dicyclopentadiene type diglycidyl ether; -Triepoxy resins such as trimethylolpropane triglycidyl ether, glycerin triglycidyl ether; vinyl (3,4-cyclohexene) dioxide, 2- (3,4-epoxycyclohexyl) -5,1-spiro- (3,4) -Epoxycyclohexyl) -Alicyclic epoxy resin such as m-dioxane; glycidylamine type epoxy resin such as tetraglycidylbis (aminomethyl) cyclohexan
- the "cyclohexane-type diglycidyl ether” means that two glycidyl groups are each bonded to a divalent saturated hydrocarbon group having one cyclohexane ring as a parent structure via an ether bond. It means a compound having a structure.
- the "dicyclopentadiene-type diglycidyl ether” is a compound having a structure in which two glycidyl groups are bonded to a divalent saturated hydrocarbon group having a dicyclopentadiene skeleton as a parent structure via an ether bond. means.
- cyclohexane type diglycidyl ether cyclohexanedimethanol diglycidyl ether is particularly preferable.
- the aromatic polyfunctional epoxy resin is a polyfunctional epoxy resin having a structure containing an aromatic ring such as a benzene ring. Many of the epoxy resins that have been frequently used in the past, such as bisphenol A type epoxy resins, are of this type. Examples of aromatic polyfunctional epoxy resins are bisphenol A type epoxy resins; p-glycidyloxyphenyldimethyltris bisphenol A diglycidyl ether-like branched polyfunctional bisphenol A type epoxy resins; bisphenol F type epoxy resins; novolak type.
- Epoxy resin Tetrabromobisphenol A type epoxy resin; Fluorene type epoxy resin; Biphenylaralkyl epoxy resin; Diepoxy resin such as 1,4-phenyldimethanol diglycidyl ether; 3,3', 5,5'-tetramethyl- Biphenyl-type epoxy resins such as 4,4'-diglycidyloxybiphenyl; glycidylamine-type epoxy resins such as diglycidylaniline, diglycidyltoluidine, triglycidyl-p-aminophenol, tetraglycidyl-m-xylylene diamine; And a naphthalene ring-containing epoxy resin and the like, but are not limited thereto.
- aromatic polyfunctional epoxy resin bisphenol F type epoxy resin, bisphenol A type epoxy resin and glycidylamine type epoxy resin are preferable, and among them, those having an epoxy equivalent of 90 to 200 g / eq are preferable.
- the resin composition of the present disclosure may contain one or more curing agents.
- the curing agent refers to a compound that cures an epoxy resin as a main agent by reacting with an epoxy group to form a crosslinked structure.
- the curing agent that the resin composition of the present disclosure may contain is not particularly limited, but includes a compound having an active group that is reactive with the epoxy group of the epoxy resin.
- the curing agent include nitrogen-containing compounds such as amines and derivatives thereof; oxygen-containing compounds such as carboxylic acid-terminated polyesters, acid anhydrides, phenol-based curing agents, bisphenol A and cresol novolac, and phenol-terminated epoxy resins; thiol compounds. Can be mentioned.
- Nitrogen-containing compounds such as amines and derivatives thereof are not particularly limited, but aliphatic polyamines such as triethylenetetraamine, tetraethylenepentamine, m-xylene diamine, trimethylhexamethylenediamine, and 2-methylpentamethylenediamine, and isophoronediamine.
- the acid anhydride-based curing agent is not particularly limited, but is substituted with, for example, methyltetrahydrophthalic anhydride, methylhexahydrophthalic anhydride, alkylated tetrahydrophthalic anhydride, methylhymic acid anhydride, or alkenyl group.
- examples thereof include succinic anhydride and glutaric anhydride.
- 3,4-dimethyl-6- (2-methyl-1-propenyl) -1,2,3,6-tetrahydrophthalic acid anhydride 1-isopropyl-4-methyl-bicyclo [2.2.2].
- Phenol-based curing agents refer to all monomers, oligomers, and polymers having a phenolic hydroxyl group, for example, phenol novolac resin and its alkylated or allylated products, cresol novolac resin, phenol aralkyl (including phenylene and biphenylene skeleton) resins, and naphthol aralkyl. Examples thereof include a resin, a triphenol methane resin, and a dicyclopentadiene type phenol resin. Of these, allylphenol novolak resin is preferable.
- the thiol compound includes a hydrolyzable polyfunctional thiol compound and a non-hydrolyzable polyfunctional thiol compound.
- hydrolyzable polyfunctional thiol compounds include trimethylpropanthris (3-mercaptopropionate) (SC Organic Chemistry: TMMP), tris-[(3-mercaptopropionyloxy) -ethyl] -isosia.
- non-hydrolytable polyfunctional thiol compounds examples include 1,3,4,6-tetrakis (2-mercaptoethyl) glycoluryl (trade name: TS-G, manufactured by Shikoku Kasei Kogyo Co., Ltd.), (1,3).
- 4,6-Tetrakiss (3-mercaptopropyl) glycoluryl (trade name: C3 TS-G, manufactured by Shikoku Kasei Kogyo Co., Ltd.), 1,3,4,6-tetrakis (mercaptomethyl) glycoluryl, 1,3,4 , 6-Tetrax (mercaptomethyl) -3a-methylglycoluryl, 1,3,4,6-tetrakis (2-mercaptoethyl) -3a-methylglycoluryl, 1,3,4,6-tetrakis (3-mercapto) Propyl) -3a-methylglycoluryl, 1,3,4,6-tetrakis (mercaptomethyl) -3a,6a-dimethylglycoluryl, 1,3,4,6-tetrakis (2-mercaptoethyl) -3a, 6a -Dimethylglycoluryl, 1,3,4,6-tetrakis (3-mercaptopropyl) -3a, 6
- non-hydrolyzable polyfunctional thiol compound a trifunctional or higher polythiol compound having two or more sulfide bonds in the molecule can also be used.
- thiol compounds include 1,2,3-tris (mercaptomethylthio) propane, 1,2,3-tris (2-mercaptoethylthio) propane, and 1,2,3-tris (3-mercapto).
- Propane Propane, 4-mercaptomethyl-1,8-dimercapto-3,6-dithiaoctane, 5,7-dimercaptomethyl-1,11-dimercapto-3,6,9-trithiaundecane, 4,7- Dimercaptomethyl-1,11-dimercapto-3,6,9-trichiaundecan, 4,8-dimercaptomethyl-1,11-dimercapto-3,6,9-trithiaundecane, tetrakis (mercaptomethylthiomethyl) Methan, tetrakis (2-mercaptoethylthiomethyl) methane, tetrakis (3-mercaptopropyltimethyl) methane, 1,1,3,3-tetrakis (mercaptomethylthio) propane, 1,1,2,2-tetrakis (mercapto) Methylthio) ethane, 1,1,5,5-tetrakis (mercaptomethylthio)
- the ratio of the curing catalyst in the resin composition is not particularly limited, but when the resin composition is an epoxy homopolymerization containing no curing agent, it is 0.1 to 50 wt% with respect to the epoxy resin in the resin composition. It is preferably 0.1 to 30 wt%, more preferably 0.1 to 20 wt%. When the resin composition contains a curing agent, it is preferably 0.01 to 10 wt%, more preferably 0.01 to 5 wt%, and 0. It is more preferably 01 to 1 wt%.
- the curable composition of the present disclosure may contain, for example, those described below, if necessary.
- a stabilizer can be added to the resin composition of the present disclosure in order to improve its storage stability and prolong the pot life.
- Various known stabilizers can be used as stabilizers for one-component adhesives containing epoxy resin as the main ingredient, but at least one selected from the group consisting of liquid boric acid ester compounds, aluminum chelates and organic acids is used. preferable.
- liquid borate compounds examples include 2,2'-oxybis (5,5'-dimethyl-1,3,2-oxabolinane), trimethylborate, triethylborate, tri-npropylborate, triisopropylborate, tri.
- aluminum chelate for example, aluminum chelate A (manufactured by Kawaken Fine Chemical Co., Ltd.) can be used.
- organic acid for example, barbituric acid can be used.
- a filler can be added to the resin composition of the present disclosure.
- fillers include silica fillers, glass fillers, alumina fillers, titanium oxide fillers, boron nitride fillers, aluminum nitride fillers, talc fillers, calcium carbonate fillers, and resin fillers (eg, polytetrafluoroethylene (PTFE)). Fillers, silicone rubber fillers, etc.), conductive fillers such as silver, copper, and nickel.
- the shape is not particularly limited, and may be hollow, spherical, or amorphous. Further, the filler may be surface-treated.
- a coupling agent can be added to the resin composition of the present disclosure.
- the coupling agent is preferably a silane coupling agent, and various silane coupling agents such as epoxy type, amino type, vinyl type, methacrylic type, acrylic type and mercapto type can be used.
- Specific examples of the silane coupling agent include 3-glycidoxypropyltrimethoxysilane, 3-aminopropyltrimethoxysilane, vinyltrimethoxysilane, and 3-triethoxysilyl-N- (1,3-dimethyl-butylidene).
- the resin compositions of the present disclosure include other additives such as carbon black, titanium black, ion trapping agents, leveling agents, antioxidants, and antifoaming agents, as long as the object of the present invention is not impaired. , Shaking agents, viscosity modifiers, flame retardants, colorants, solvents and the like can be added. The type and amount of each additive are the same as usual.
- the resin composition disclosed herein is a one-component epoxy resin, for example, a sealing material or a filler for electronic parts, a dam material, a conductive or insulating adhesive, a die attach material, a film, or a coating. Examples include agents and shielding materials. In addition, it can be used for paints, composite materials such as pipe materials and tank materials, floor materials, civil engineering and building materials such as membranes, adhesives, etc., but the usage is not limited to these. In particular, the resin composition using the curing catalyst of the present disclosure is suitable for electronic component applications that require high moisture resistance and reliability.
- the obtained crude product (380 g) was added to methanol (1514 mL), heated to 50 ° C., and dissolved with stirring. Then, the total amount of methanol was concentrated to 1226 mL, and suction filtration was performed. The obtained solution was heated to 50 ° C. again and then left to stand for 16 hours with stirring at room temperature. The obtained suspension was suction-filtered, and then the filtrate was washed with pure water (600 mL ⁇ 4 times). By drying the obtained filter medium in a dryer at 40 ° C. for 178 hours, 1-[([1,1'-biphenyl] -2-yl) oxy] -3- (2-methyl-1H-imidazole-). 1-yl) propanol-2-ol (134 g, yield 60%) was obtained as a white solid.
- the measured values of the physical properties of the product are as follows.
- 2-Methyl-1H-imidazole manufactured by Shikoku Kasei Kogyo Co., Ltd., 40.3 g, 491 mmol
- 2-Methyl-1H-imidazole manufactured by Shikoku Kasei Kogyo Co., Ltd., 40.3 g, 491 mmol
- the obtained solution is cooled to room temperature, concentrated under reduced pressure, the obtained solid is suspended in methanol (50 mL), heated to 60 ° C. to dissolve, pure water (100 mL) is added, and then. When cooled to room temperature, it was separated into two layers. Further, the mixture was stirred under an ice bath, the precipitated solid was collected by filtration, washed with pure water, and dried under reduced pressure. The obtained solid was suspended in methanol (150 mL), heated to 60 ° C., dissolved, and then cooled to room temperature.
- the obtained solid was suspended in methanol (15 mL), the solid was filtered off, the solid was washed with methanol, the obtained liquid was combined with the filtrate, and the obtained solution was concentrated under reduced pressure.
- the measured values of the physical properties of the product are as follows.
- E-type viscometer (TVE-25H: manufactured by Toki Sangyo Co., Ltd., rotor name: 3 ° x R9) at the time of preparation and after storage for 24 hours in an environment of 25 ° C ⁇ 2 ° C and 50% RH ⁇ 10% RH.
- Using .7) measurements were taken at 5 rpm, 25 ° C., in an appropriate preset range (H, R, or U), and (viscosity after 24 hours / viscosity at the time of fabrication) was calculated as the pot life. ..
- the peak temperature during the reaction was measured using a differential scanning calorimeter (DSC 204 F1 Phoenix (registered trademark)) (manufactured by NETZSCH).
- each resin composition was weighed in an aluminum pan, sealed with an aluminum lid, and then a hole was made in the center of the lid with a needle to prepare a measurement sample.
- the heat flow (mW / mg) of this measurement sample was measured under a nitrogen atmosphere (100 mL / min) in the range of 25 to 250 ° C. under the condition of a speed of 10 ° C./min, and the exothermic peak was measured.
- the temperature at which the above temperature is obtained (referred to as the reaction peak top temperature in the present specification) was calculated by analysis software (NETZSCH Proteus-Thermal Analysis version 6.1.0B).
- the gel time was measured using a gelation tester (GT-D-15A: manufactured by Eucalyptus Giken Co., Ltd.).
- the hot plate was set at 120 ° C., and the resin composition was transferred onto the hot plate with a test rod.
- the gel time was defined as the time required for the resin composition to reach a hardness that does not change in shape even when the resin composition is touched with a test rod.
- a Teflon (registered trademark) sheet is attached to the surface of a glass plate with a thickness of 3 mm, and two spacers (heat-resistant tape are layered) are placed on the Teflon (registered trademark) sheet so that the film thickness when cured is 300 ⁇ 200 ⁇ m. Placed in.
- a resin composition is applied between the spacers, sandwiched between other glass plates with a Teflon (registered trademark) sheet on the surface so as not to entrap air bubbles, and cured at 150 ° C. for 30 minutes to obtain a cured product. rice field.
- the cured product was peeled off from a glass plate to which a Teflon (registered trademark) sheet was attached, and then cut to a predetermined size (30 mm ⁇ 30 mm) with a cutter to obtain a test piece.
- the cut end was smoothed with sandpaper, and the weight of the cured product was measured.
- PCT pressure cooker test
- EHS-221M highly accelerated life test device
- the weight of the test piece was measured, and (((weight after standing-weight before leaving) ⁇ 100) / weight before leaving) was calculated as the water absorption rate.
- the presence or absence of deterioration was confirmed by visually observing or palpating the surface of the cured product, such as roughness and perforation, elution of components, softening, and deformation. The results are shown in Table 2.
- Example 1 to 4 when compounds 1 to 4 were used, the viscosities did not change much even 24 hours after the preparation of the resin composition, but Comparative Examples 1 to 3 (compounds 5, 6 and 2MZ were used). In the case), the viscosity became unmeasurable after 24 hours (indicated as UM in the table). As described above, the resin composition of the example had a longer pot life. The viscosities of Examples 1 and 4 in which imidazole was substituted at the ortho position of biphenyl were measured after 72 hours. The pot life was 1.2 times that of the resin composition of Example 1, but was 1.4 times that of the resin composition of Example 4.
- the cured products of Examples 1 to 4 were more resistant to high temperature, high humidity, and high pressure treatment than the cured products of Comparative Examples 1 to 3.
- the water absorption rate of the cured product was 3.0% or less in all the examples, and 2.0% or less in Examples 1 and 4, which was particularly excellent.
- the water absorption rate of the cured product sometimes exceeded 3.0%.
- the epoxyamine adduct disclosed herein has a pot. It is possible to obtain a resin composition having a good life, sufficient curability, and better properties in terms of moisture resistance.
- compound 1 was used in Examples 5 to 7, and 2-methylimidazole (2MZ) was used in Comparative Examples 4 to 6.
- epoxy resin EXA835LV (manufactured by DIC, a mixture of bisphenol A type epoxy resin and bisphenol F type epoxy resin), YDF8170 (manufactured by Nittetsu Chemical & Materials Co., Ltd., bisphenol F type epoxy resin), CDMDG (manufactured by Showa Denko, fat) Group epoxy resin) was used.
- the curing of these epoxy resins is based on homopolymerization of epoxy, curing reaction with acid anhydride, and curing reaction with phenol-based resin, respectively.
- the pot life, reaction peak top temperature, gel time measurement, deterioration observation after PCT, and water absorption rate were measured under the same experimental conditions as in Table 2 except that the heating for gel time measurement was set to 150 ° C. The calculation was performed.
- the epoxy imidazole adduct disclosed herein is a good pot, whether the epoxy resin is an aliphatic epoxy resin or the curing agent is an acid anhydride or a phenolic resin. It has a life and can be sufficiently cured. Further, a resin composition having better properties in terms of pot life and moisture resistance can be obtained as compared with the case where the curing catalyst is set to 2 MZ.
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Abstract
Description
(式中、R1は、水素、フェニル、およびC1~C17のアルキルから選択される基であり、R2、R3は、それぞれ独立して、水素およびC1~C6のアルキルから選択される基である。)
下記構造式(Io)または(Im)を有するエポキシイミダゾールアダクトを含有してもよい。
(式中、R1は、水素、フェニル、およびC1~C17のアルキルから選択される基であり、R2、R3は、それぞれ独立して、水素およびC1~C6のアルキルから選択される基である。)
本出願は、令和2年3月31日付で出願した日本国特許出願特願2020-064472に基づく優先権を主張するものであり、当該基礎出願を引用することにより、本明細書に含めるものとする。
<エポキシイミダゾールアダクトの構造>
本実施形態にかかる硬化触媒は、下記の構造式(I)を有するエポキシイミダゾールアダクトを含有する。なお、本明細書において、硬化触媒(curing catalyst)とは、主剤が自己重合するか、または主剤と硬化剤が重合する時に、その重合の開始及び/又は進行を促進する機能を有する触媒を意味する。
(式中、R1は、水素、フェニル、およびC1~C17のアルキルから選択される基であり、R2、R3は、それぞれ独立して、水素およびC1~C6のアルキルから選択される基である。)R1は、フェニルおよびC1~C12のアルキルから選択される基であってもよい。R2、R3のアルキル基は、直鎖構造であっても、分岐構造であっても、環状構造であってもよい。なお、化合物(I)は、図1に示す化合物(Io)、化合物(Im)、及び化合物(Ip)を含むものである。
このエポキシイミダゾールアダクトは、例えば、上記化合物と同じ修飾を有するイミダゾール環をもつメチルイミダゾール誘導体を2-{[([1,1’-biphenyl]-2-yl)oxy]methyl}oxirane、2-{[([1,1’-biphenyl]-3-yl)oxy]methyl}oxirane、または2-{[([1,1’-biphenyl]-4-yl)oxy]methyl}oxiraneと反応させることで、製造することができるが、製造方法はこれに限定されず、当業者に公知の方法を用いて製造することができる。
このエポキシイミダゾールアダクトは、BPA(ビスフェノールA)骨格を有しないので、硬化物から生物の健康に対するリスクが指摘されているBPAを生じることがなく、安全性が高い。例えば、ビスフェノールA型エポキシ樹脂の硬化触媒として、本明細書に開示のエポキシイミダゾールアダクトを使用した場合、従来知られているビスフェノールA型エポキシアミンアダクトを使用した場合と比べて、硬化物からのBPAの発生を著しく抑制することができる。これは、BPAが発生するのは、重合物の構造上、重合したビスフェノールA型エポキシ樹脂の末端からのみであるためだと考えられる。
本明細書に開示の硬化触媒は、上述のエポキシイミダゾールアダクトの1種または複数種を含有してもよい。また、上述のエポキシイミダゾールアダクト以外の1種または複数種の他の硬化触媒を含有してもよい。
本明細書に開示の樹脂組成物は、構造式(I)を有するエポキシイミダゾールアダクトを含有する硬化触媒と、エポキシ樹脂とを含有する。
エポキシ樹脂は特に限定されず、単官能エポキシ樹脂であっても、多官能エポキシ樹脂であってもよい。
-トリメチロールプロパントリグリシジルエーテル、グリセリントリグリシジルエーテルのようなトリエポキシ樹脂;ビニル(3,4-シクロヘキセン)ジオキシド、2-(3,4-エポキシシクロヘキシル)-5,1-スピロ-(3,4-エポキシシクロヘキシル)-m-ジオキサンのような脂環式エポキシ樹脂;テトラグリシジルビス(アミノメチル)シクロヘキサンのようなグリシジルアミン型エポキシ樹脂;1,3-ジグリシジル-5-メチル-5-エチルヒダントインのようなヒダントイン型エポキシ樹脂;及び-1,3-ビス(3-グリシドキシプロピル)-1,1,3,3-テトラメチルジシロキサンのようなシリコーン骨格を有するエポキシ樹脂などが挙げられるが、これらに限定されない。
本開示の樹脂組成物は、1種または複数種の硬化剤を含有してもよい。なお、本明細書において、硬化剤とは、主剤としてのエポキシ樹脂に対し、エポキシ基と反応し架橋構造を形成することで硬化させる化合物をいう。
樹脂組成物中の硬化触媒の割合は特に限定されないが、樹脂組成物が、硬化剤を含有しないエポキシホモ重合である場合、樹脂組成物中のエポキシ樹脂に対して、0.1~50wt%であることが好ましく、0.1~30wt%であることがより好ましく、0.1~20wt%であることがさらに好ましい。樹脂組成物が、硬化剤を含有する場合、樹脂組成物中のエポキシ樹脂に対して、0.01~10wt%であることが好ましく、0.01~5wt%であることがより好ましく、0.01~1wt%であることがさらに好ましい。
本開示の硬化性組成物は、主剤、硬化触媒、硬化剤以外に、例えば以下に述べるものを必要に応じて含有してもよい。
本開示の樹脂組成物には、その貯蔵安定性を向上させ、ポットライフを長くするために、安定剤を添加することができる。エポキシ樹脂を主剤とする一液型接着剤の安定剤として公知の種々の安定剤を使用することができるが、液状ホウ酸エステル化合物、アルミキレート及び有機酸からなる群から選択される少なくとも1つが好ましい。
本開示の樹脂組成物には、充填剤を添加することができる。
本開示の樹脂組成物には、カップリング剤を添加することができる。カップリング剤は、シランカップリング剤が好ましく、エポキシ系、アミノ系、ビニル系、メタクリル系、アクリル系、メルカプト系等の各種シランカップリング剤を用いることができる。シランカップリング剤の具体例としては、3-グリシドキシプロピルトリメトキシシラン、3-アミノプロピルトリメトキシシラン、ビニルトリメトキシシラン、3-トリエトキシシリル-N-(1,3-ジメチル-ブチリデン)プロピルアミン、2-(3,4-エポキシシクロヘキシル)エチルトリメトキシシラン、p-スチリルトリメトキシシラン、3-メタクリロキシプロピルメチルトリメトキシシラン、3-アクリロキシプロピルトリメトキシシラン、8-グリシドキシオクチルトリメトキシシラン、3-ウレイドプロピルトリエトキシシラン、3-メルカプトプロピルトリメトキシシラン、ビス(トリエトキシシリルプロピル)テトラスルフィド、3-イソシアネートプロピルトリエトキシシラン等が挙げられる。これらのシランカップリング剤は、単独で用いても、2種以上を併用してもよい。
本開示の樹脂組成物には、本発明の目的を損なわない範囲で、その他の添加剤、例えばカーボンブラック、チタンブラック、イオントラップ剤、レベリング剤、酸化防止剤、消泡剤、揺変剤、粘度調整剤、難燃剤、着色剤、溶剤等を添加することができる。各添加剤の種類、添加量は常法通りである。
本明細書に開示の樹脂組成物は、一液性エポキシ樹脂として、例えば、電子部品用の封止材や充填材、ダム材、導電性あるいは絶縁性の接着剤、ダイアタッチ材、フィルム、コート剤、シールド材などが挙げられる。他にも塗料、パイプ用材、タンク用材などの複合材料、床材、メンブレンなどの土木建築材料、接着剤、などに用いることができるが、利用方法はこれらに限定されない。特に、本開示の硬化触媒を使用した樹脂組成物は、高い耐湿信頼性を求められる電子部品用途に好適である。
(化合物1)1-[([1,1’-biphenyl]-2-yl)oxy]-3-(2-methyl-1H-imidazole-1-yl)propan-2-olの合成
2-methyl-1-H-imidazole(四国化成工業社製、150g、1.83mol)を、室温でトルエン(443mL)とメタノール(121mL)の混合溶媒に溶解して得られた溶液を、80℃に加熱し、撹拌しながら還流した。得られた溶液に、2-{[([1,1’-biphenyl]-2-yl)oxy]methyl}oxirane(三光社製、210g、0.913mol、エポキシ当量230g/eq)を室温でトルエン(363mL)に溶解した溶液を滴下速度3.75mL/minで添加した。全量滴下した後、得られた混合物を80℃で75分間撹拌した。その後、得られた反応物をエバポレーターを用いて50℃で溶媒を留去し、粗生成物(392g)を得た。
1H NMR (400 MHz, METHANOL-d4) δ ppm 2.15 (s, 3 H) 3.80 - 3.90 (m, 2 H) 3.95 - 4.07 (m, 3 H) 6.73 (d, 1 H) 6.81 (d, 1 H) 7.02 - 7.07 (m, 2 H) 7.28 - 7.34 (m, 3 H) 7.41 (t, 2 H) 7.50 - 7.54 (d, 2 H).
HRMS (ESI) calcd for C19H20N2O2 [M+H]+ Exact Mass : 309.153, found 309.159.
1H NMR (400 MHz, METHANOL-d4) δ ppm 2.37 (s, 3 H) 3.95 - 3.99 (m, 2 H) 4.08 - 4.12 (m, 1 H) 4.18 - 4.24 (m, 2 H) 6.79 - 6.80 (m, 1 H) 6.92 (dd, 1 H) 7.02 - 7.03 (m, 1 H) 7.16 - 7.21 (m, 2 H) 7.29 - 7.36 (m, 2 H) 7.41 (t, 2 H) 7.58 (d, 2 H).
HRMS (ESI) calcd for C19H20N2O2 [M+H]+ Exact Mass : 309.160, found 309.159.
まず、4-Phenylphenol(東京化成工業社製、5.00g、29.4mmol)および炭酸カリウム(東京化成工業社製、5.28g、38.2mmol)をEpibromohydrin(東京化成工業社製、7.23mL、88.1mmol)に加え、120℃に加温し、3時間攪拌した。得られた溶液を室温まで冷却した後、ジクロロメタン(30mL)を加え、固体をろ別し、固体をジクロロメタン洗浄して得られた洗浄液をろ液に合わせて、得られた溶液を減圧下で濃縮した。得られた固体を中圧カラムクロマトグラフィー (シリカゲル100g、n-ヘキサン/ジクロロメタン=50/50~35/65)にて精製し、目的物を含む分画を回収して濃縮し、2-{[([1,1’-biphenyl]-4-yl)oxy]methyl}oxirane(5.49g、24.3mmol)を無色固体として得た。
1H NMR (400 MHz, METHANOL-d4) δ ppm 2.37 (s, 3 H) 3.91 - 3.99 (m, 2 H) 4.08 - 4.12 (m, 1 H) 4.16 - 4.24 (m, 2 H) 6.80 (d, 1 H) 7.00 - 7.04 (m, 3 H) 7.26 (t, 1 H) 7.38 (t, 2 H) 7.51 - 7.56 (m, 4 H).
HRMS (ESI) calcd for C19H20N2O2 [M+H]+ Exact Mass : 309.160, found 309.159.
2-Undecyl-1H-imidazole(四国化成工業社製、53.07g、239mmol)をトルエン(64mL)に溶解させ、80℃に加温後、2-{[([1,1’-biphenyl]-2-yl)oxy]methyl}oxirane(三光社製、30.0g、133mmol)のトルエン(190mL)溶液を4.5時間かけて滴下し、その後、同温度で4時間攪拌した。反応溶液を室温まで冷却後、減圧下濃縮し、残渣(84.4g)を得た。得られた残渣(67.1g)を中圧カラムクロマトグラフィー (シリカゲル、ジクロロメタン/メタノール=99/1~90/10)にて精製し、目的物を含む分画を濃縮し、1-[([1,1’-biphenyl]-2-yl)oxy]-3-(2-undecyl-1H-imidazole-1-yl)propan-2-ol(35.6g)を無色固体として得た。得られた1-[([1,1’-biphenyl]-2-yl)oxy]-3-(2-undecyl-1H-imidazole-1-yl)propan-2-ol(35.6g)にアセトニトリル(200mL)を加え、超音波洗浄にて超音波を30分あて、ろ取、アセトニトリル洗浄(10mL × 5)し、固体を減圧下乾燥し、1-[([1,1’-biphenyl]-2-yl)oxy]-3-(2-undecyl-1H-imidazole-1-yl)propan-2-ol(30.8g、68.7mmol、収率65%)を無色固体として得た。生成物の物性測定値は以下の通りである。
1H NMR (400 MHz, METHANOL-d4) δ ppm 0.87 (t, 3 H) 1.15 - 1.30 (m, 16 H) 1.51 - 1.55 (m, 2 H) 2.46 (t, 2 H) 3.83 - 3.89 (m, 2 H) 3.94 - 4.00 (m, 2 H) 4.02 - 4.04 (m, 1 H) 6.76 (d, 1 H) 6.84 (s, 1 H) 7.01 - 7.05 (m, 2 H) 7.27 - 7.32 (m, 3 H) 7.40 (t, 2 H) 7.53 (d, 2 H).
HRMS (ESI) calcd for C29H40N2O2 [M+H]+ Exact Mass : 449.316, found 449.316.
2-Methyl-1H-imidazole(四国化成工業社製、21.8g、266mmol)をトルエン(78.7mL)とメタノール(17.7mL)の混合溶媒に溶解させ、80℃に昇温し、2-(Phenoxymethyl)oxirane(ナガセケムテックス社製、22.0g、147mmol)のトルエン(38.1mL)溶液を1時間かけて滴下し、その後、同温度で1時間攪拌した。得られた溶液を室温まで冷却し、減圧下で溶媒を留去し、1-(2-methyl-1H-imidazole-1-yl)-3-phenoxypropan-2-ol(47.85g)を黄色固体として得た。生成物の同定は1HNMRより行い、目的物が得られていることを確認した。
2-Methyl-1H-imidazole(四国化成工業社製、43.8g、533mmol)をトルエン(60.6mL)とメタノール(16.8mL)の混合溶媒に溶解させ、80℃に昇温し、2,2’-{propane-2,2-diylbis[(4,1-phenylene)oxymethylene]}bis(oxirane)(大阪ソーダ社製、48.0g、133mmol)のトルエン(83.2mL)溶液を2時間かけて滴下し、その後、80℃で2時間攪拌した。得られた溶液を室温まで冷却し、減圧下で溶媒を留去し、α,α’-[(1-methylethylidene)bis(4,1-phenyleneoxymethylene)]bis[2-methyl-1H-imidazole-1-ethanol(112.9g)を黄色固体として得た。生成物の同定は1HNMRより行い、目的物が得られていることを確認した。
本実施例では、本明細書に開示の硬化触媒を含む樹脂組成物が優れた特性を有することを示す。
本実施例5~7では、化合物1とエポキシ樹脂を含む樹脂組成物が、他のエポキシ樹脂および他の硬化剤との併用においても、優れた特性を有することを示す。
Claims (11)
- R1は、水素およびC1~C6のアルキルからなる群から選択される基である、請求項1または2に記載のエポキシ樹脂の硬化触媒。
- R1は、C8~C17のアルキルからなる群から選択される基である、請求項1または2に記載のエポキシ樹脂の硬化触媒。
- 請求項1~5のいずれか1項に記載の硬化触媒と、エポキシ樹脂とを含有する樹脂組成物。
- 前記エポキシ樹脂の硬化剤をさらに含む、請求項6に記載の樹脂組成物。
- 前記硬化剤が、酸無水物またはフェノール系硬化剤である、請求項7に記載の樹脂組成物。
- 請求項6~8のいずれか1項に記載の樹脂組成物を含有する封止材。
- 請求項6~8のいずれか1項に記載の樹脂組成物を含有する接着剤。
- 請求項6~8のいずれか1項に記載の樹脂組成物の硬化物。
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| CN202080094013.3A CN115003727B (zh) | 2020-03-31 | 2020-04-24 | 固化催化剂、树脂组合物、密封材料、粘结剂及固化物 |
| JP2022511497A JP7316009B2 (ja) | 2020-03-31 | 2020-04-24 | 硬化触媒、樹脂組成物、封止材、接着剤、及び硬化物 |
| EP20929256.4A EP4130094B1 (en) | 2020-03-31 | 2020-04-24 | Curing catalyst, resin composition, sealing material, adhesive and cured product |
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| CN120309894B (zh) * | 2025-05-08 | 2025-12-09 | 广东固研电子材料有限公司 | 一种咪唑类环氧树脂固化剂及其制备方法和应用 |
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- 2020-04-24 KR KR1020227025663A patent/KR102734311B1/ko active Active
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| JPWO2021199450A1 (ja) | 2021-10-07 |
| TW202138355A (zh) | 2021-10-16 |
| CN115003727A (zh) | 2022-09-02 |
| TWI873316B (zh) | 2025-02-21 |
| JP7316009B2 (ja) | 2023-07-27 |
| US20230097646A1 (en) | 2023-03-30 |
| US12384874B2 (en) | 2025-08-12 |
| EP4130094A1 (en) | 2023-02-08 |
| EP4130094A4 (en) | 2024-04-17 |
| CN115003727B (zh) | 2024-04-02 |
| EP4130094B1 (en) | 2024-11-27 |
| KR102734311B1 (ko) | 2024-11-25 |
| KR20220155260A (ko) | 2022-11-22 |
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