WO2014181699A1 - 硬化性エポキシ樹脂組成物及びその硬化物 - Google Patents
硬化性エポキシ樹脂組成物及びその硬化物 Download PDFInfo
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- WO2014181699A1 WO2014181699A1 PCT/JP2014/061601 JP2014061601W WO2014181699A1 WO 2014181699 A1 WO2014181699 A1 WO 2014181699A1 JP 2014061601 W JP2014061601 W JP 2014061601W WO 2014181699 A1 WO2014181699 A1 WO 2014181699A1
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- 0 **1C(*)=C(*)C2(**2)C(*)(*)C1(*)C(*)(*)* Chemical compound **1C(*)=C(*)C2(**2)C(*)(*)C1(*)C(*)(*)* 0.000 description 1
Classifications
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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
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/04—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers only
- C08G65/22—Cyclic ethers having at least one atom other than carbon and hydrogen outside the ring
-
- 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
Definitions
- the present invention relates to a curable epoxy resin composition and a cured product thereof.
- This application claims the priority of Japanese Patent Application No. 2013-099976 for which it applied to Japan on May 10, 2013, and uses the content here.
- curable epoxy resin compositions containing an epoxy compound as an essential component forms a cured product (resin cured product) excellent in electrical characteristics, moisture resistance, heat resistance and the like by being cured.
- curable epoxy resin compositions include, for example, coating agents, inks, adhesives, sealants, sealants, resists, composite materials, transparent substrates, transparent films or sheets, and optical materials (for example, optical lenses).
- Insulating materials, stereolithography materials, electronic materials for example, electronic paper, touch panels, solar cell substrates, optical waveguides, light guide plates, holographic memories, etc. are used in various fields.
- the curable epoxy resin composition for example, a composition containing an alicyclic epoxy compound represented by 3,4-epoxycyclohexylmethyl (3,4-epoxy) cyclohexanecarboxylate as an essential component is known (for example, Patent Documents 1 to 3). Since such a curable epoxy resin composition contains an alicyclic epoxy compound, it is known that a cured product having excellent heat resistance can be formed.
- the use of the curable epoxy resin composition has further expanded, and the properties required for the cured product (characteristics such as heat resistance and transparency) have become more severe. .
- the cured product obtained by curing the curable epoxy resin composition described in Patent Documents 1 to 3 has a problem that heat resistance and transparency are insufficient depending on its use.
- an object of the present invention is to provide a curable epoxy resin composition that can form a cured product having a high glass transition temperature and an excellent balance between heat resistance and transparency by curing, and a cured product thereof. is there.
- the inventor has a high glass transition temperature by curing a curable epoxy resin composition containing a specific alicyclic epoxy compound and a curing agent as essential components,
- the present inventors have found that a cured product having an excellent balance between heat resistance and transparency can be formed.
- R 1 to R 22 are the same or different and each represents a hydrogen atom, a methyl group, or an ethyl group.
- the curable epoxy resin composition characterized by including the alicyclic epoxy compound (A) represented by these, and the hardening
- the said curable epoxy resin composition containing a hardening accelerator (C) is provided.
- the present invention also provides a cured product obtained by curing the curable epoxy resin composition.
- a curable epoxy resin composition comprising an alicyclic epoxy compound (A) represented by the above formula (1) and a curing agent (B).
- the content of the alicyclic epoxy compound (A) is 0.1 wt% or more and less than 100 wt% with respect to the curable epoxy resin composition (100 wt%) [1] to [3] The curable epoxy resin composition as described in any one of these. [5] Any one of [1] to [4], wherein the content of the alicyclic epoxy compound (A) is 1 to 100% by weight based on the total amount of the cationic curable compound contained in the curable epoxy resin composition. The curable epoxy resin composition described in 1. [6] The curable epoxy resin composition according to any one of [1] to [5], wherein the curing agent (B) is an acid anhydride curing agent.
- the content of the curing agent (B) is 50 to 200 parts by weight with respect to 100 parts by weight of the total amount of the cationic curable compounds contained in the curable epoxy resin composition.
- the content of the curing agent (B) is a ratio of 0.5 to 1.5 equivalents per equivalent of epoxy groups in all the compounds having epoxy groups contained in the curable epoxy resin composition [ [1] The curable epoxy resin composition according to any one of [8].
- the content of the curing accelerator (C) is 0.01 to 5 parts by weight with respect to 100 parts by weight of the total amount of the cationic curable compound contained in the curable epoxy resin composition.
- Curable epoxy resin composition. [12] The curable epoxy resin according to any one of [1] to [11], which contains a compound having at least one hydroxyl group selected from the group consisting of ethylene glycol, diethylene glycol, propylene glycol, and glycerin. Composition. [13] A cured product obtained by curing the curable epoxy resin composition according to any one of [1] to [12].
- the curable epoxy resin composition of the present invention has the above-described configuration, it can be cured to form a cured product having a high glass transition temperature and particularly excellent balance between heat resistance and transparency.
- the curable epoxy resin composition of the present invention comprises an alicyclic epoxy compound (A) represented by the following formula (1) (sometimes simply referred to as “alicyclic epoxy compound (A)”), and a curing agent.
- a curable epoxy resin composition containing (B) as an essential component may contain other components as necessary in addition to the essential components (components (A) and (B)).
- the alicyclic epoxy compound (A) in the curable epoxy resin composition of the present invention is a compound represented by the above formula (1).
- R 1 to R 22 in the formula (1) are the same or different and each represents a hydrogen atom, a methyl group, or an ethyl group.
- R 1 to R 22 hydrogen atoms are preferable, and it is particularly preferable that all of R 1 to R 22 are hydrogen atoms.
- the alicyclic epoxy compound (A) is, for example, the following formula (2): [In formula (2), R 1 to R 10 and R 13 to R 22 are the same as above] It can manufacture by the hydrogenation reaction of the compound (unsaturated diepoxy compound) represented by these.
- the hydrogenation reaction is preferably performed in the presence of a catalyst.
- a metal catalyst effective for hydrogenation reaction a catalyst composed of a simple metal or a metal compound.
- the metal catalyst include a platinum catalyst, a palladium catalyst, a rhodium catalyst, an iridium catalyst, a ruthenium catalyst, and a nickel catalyst.
- a palladium catalyst is preferable, and a palladium carbon catalyst (active carbon is used as a carrier and palladium (0) is dispersed and supported on the surface of the carrier), a palladium-fibroin complex, and the like are most preferable.
- -Ethylenediamine complex complex and the like are most preferable.
- the amount of metal catalyst used is not particularly limited, but is preferably about 0.05 to 5 parts by weight with respect to 100 parts by weight of the compound represented by formula (2).
- the upper limit of the amount of the metal catalyst used is more preferably 2.5 parts by weight, particularly preferably 1 part by weight.
- the lower limit is more preferably 0.1 parts by weight, particularly preferably 0.25 parts by weight.
- the hydrogenation reaction is preferably performed in the presence of a solvent.
- the solvent is not particularly limited as long as it does not inhibit the progress of the reaction. Examples thereof include alcohols (eg, methanol, ethanol, propanol, isopropanol); ethers (eg, diethyl ether, tetrahydrofuran (THF), etc. ) And the like.
- the amount of the solvent used is not particularly limited, but is preferably about 100 to 3000 parts by weight, more preferably 1000 to 2000 parts by weight with respect to 100 parts by weight of the compound represented by the formula (2).
- the reaction pressure in the hydrogenation reaction is not particularly limited, but is preferably from normal pressure to 100 atm (0.1 to 10 MPa), more preferably from normal pressure to 10 atm (0.1 to 1 MPa).
- the hydrogenation reaction can be carried out in the presence of hydrogen (in a hydrogen atmosphere) or under hydrogen flow.
- an inert gas such as nitrogen, argon, or helium may be present in the gas phase portion of the reaction system.
- a hydrogen-containing gas may be blown into the reaction system liquid phase part by a blow pipe.
- the reaction temperature is not particularly limited, but is preferably about 10 to 50 ° C.
- the reaction time is not particularly limited, but is preferably about 5 to 100 hours.
- the hydrogenation reaction can be carried out by any method such as a batch method, a semi-batch method, or a continuous method.
- reaction product can be separated and purified by, for example, known or conventional separation and purification means such as filtration, concentration, distillation, extraction, crystallization, recrystallization, adsorption, column chromatography, or a combination of these. .
- the compound represented by Formula (2) can be manufactured by the method of the following 1 or 2, for example.
- R 1 to R 10 and R 13 to R 22 are the same as or different from each other, and each represents a hydrogen atom, a methyl group, or an ethyl group.
- a compound represented by the following formula (3) and a compound represented by the following formula (3 ′) are subjected to a metathesis reaction (particularly, an olefin metathesis reaction).
- a compound represented by the following formula (5) is obtained by subjecting a compound represented by the following formula (4) and a compound represented by the following formula (4 ′) to a metathesis reaction, and the obtained formula (5) ) Is epoxidized.
- the metathesis reaction in the method 1 or 2 is preferably performed in the presence of a catalyst.
- a catalyst a ruthenium complex, a tungsten compound, a molybdenum compound, a titanium compound, a vanadium compound etc. are preferable, for example.
- Dichloro- (3-phenyl-1H-inden-1-ylidene) bis (tricyclohexylphosphine) ruthenium (II) (trade name “Umicore M1”)
- Dichloro- (3-phenyl-1H-inden -1-ylidene) bis (isobutylphobane) ruthenium (II) (trade name “Umicore M1 1 ”)
- [1,3-Bis (2,4,6-trimethylphenyl) -2-imidazolidinylidene] dichloro- (3-phenyl- 1H-inden-1-ylidene) (tricyclohexylphosphine) ruthenium (II) (trade name “Umicore M2”)
- [1,3-Bis (2,4,6-trimethylphenyl) -2-imidazolidinylidene] dichloro- (3-phenyl -1H-inden-1-ylidene) (pyr
- the catalyst examples include transition metal compounds of Group 4 to 8 of the periodic table such as tungsten chloride, tungsten oxide chloride, molybdenum chloride, titanium chloride, vanadium chloride, organic aluminum such as triethylaluminum, and organic such as tetramethyltin. Combinations with tin can be used, and molybdenum carbene complexes such as 2,6-Diisopropylphenylimido Neophylidenemolybdenum (VI) Bis (hexafluoro-t-butoxide) (STREM) can also be used.
- transition metal compounds of Group 4 to 8 of the periodic table such as tungsten chloride, tungsten oxide chloride, molybdenum chloride, titanium chloride, vanadium chloride, organic aluminum such as triethylaluminum, and organic such as tetramethyltin. Combinations with tin can be used, and molybdenum carbene complexes such as 2,6-Diisopropy
- the amount of the catalyst used in the metathesis reaction is not particularly limited, but is the total amount of the compound represented by formula (3) and the compound represented by formula (3 ′) [or the compound and formula represented by formula (4).
- the total amount of the compound represented by (4 ′)] is preferably about 0.00001 to 0.01 mol per 1 mol.
- the upper limit of the amount of catalyst used is more preferably 0.005 mol, particularly preferably 0.003 mol.
- the lower limit is more preferably 0.00002 mol, particularly preferably 0.00005 mol.
- the metathesis reaction may be performed in the presence of a solvent.
- the solvent is not particularly limited as long as it does not inhibit the progress of the reaction. Examples thereof include aliphatic hydrocarbons such as hexane and octane; aromatic hydrocarbons such as toluene and xylene; and alicyclic hydrocarbons such as cyclohexane. Halogenated hydrocarbons such as methylene chloride and 1,2-dichloroethane; esters such as ethyl acetate; ethers such as dioxane; aprotic polar solvents such as N, N-dimethylformamide and the like.
- a solvent can be used individually or in combination of 2 or more types.
- the amount of the solvent used is not particularly limited, but the total amount of the compound represented by the formula (3) and the compound represented by the formula (3 ′) [or the compound represented by the formula (4) and the formula (4 ′
- the total amount of the compounds represented by)] is preferably 0 to 2000 parts by weight, more preferably 0 to 500 parts by weight with respect to 100 parts by weight.
- the reaction temperature in the metathesis reaction can be appropriately selected according to the reaction components and the type of catalyst, and is not particularly limited, but is preferably 10 to 100 ° C, more preferably 20 to 80 ° C, and further preferably 30 to 50 ° C. is there.
- the reaction time is not particularly limited, but is preferably 5 to 100 hours, more preferably 12 to 60 hours.
- the reaction may be carried out at normal pressure or under reduced pressure or pressure.
- the reaction atmosphere is not particularly limited as long as it does not inhibit the reaction, and may be, for example, a nitrogen atmosphere or an argon atmosphere.
- the metathesis reaction can be performed by any method such as a batch method, a semi-batch method, and a continuous method.
- reaction product can be separated and purified by, for example, known or conventional separation and purification means such as filtration, concentration, distillation, extraction, crystallization, recrystallization, adsorption, column chromatography, or a combination of these. .
- the compound represented by the formula (2) obtained by the metathesis reaction is further epoxidized to obtain the corresponding compound represented by the formula (2).
- the epoxidation reaction is preferably performed in the presence of an epoxidizing agent.
- the epoxidizing agent include peracid and hydrogen peroxide. Among these, it is preferable to use a peracid.
- peracid examples include performic acid, peracetic acid, perbenzoic acid, metachloroperbenzoic acid, trifluoroperacetic acid, and the like.
- metachloroperbenzoic acid it is preferable to use metachloroperbenzoic acid as an epoxidizing agent because it is easily available.
- an epoxidizing agent can also be used individually by 1 type, and can also be used in combination of 2 or more type.
- the amount of the epoxidizing agent can be appropriately adjusted according to the type of the epoxidizing agent used and the type of the compound represented by the formula (5), and is not particularly limited, but is represented by the formula (5).
- the amount is preferably 1.6 to 2.4 mol, more preferably 1.8 to 2.2 mol, relative to 1 mol of the compound.
- the epoxidation reaction of the compound represented by the formula (5) may be performed in the presence of a solvent.
- the solvent is not particularly limited as long as it does not inhibit the progress of the reaction, and examples thereof include aromatic compounds such as toluene and benzene; aliphatic hydrocarbons such as hexane and cyclohexane; esters such as ethyl acetate and the like. It is done.
- the reaction temperature in the epoxidation reaction is not particularly limited, but is preferably 0 to 60 ° C., more preferably 0 to 40 ° C., particularly preferably 0 to 20 ° C., and most preferably 0 to 10 ° C. If the reaction temperature is below 0 ° C, the reaction may be slow. On the other hand, when the reaction temperature exceeds 60 ° C., the epoxidizing agent may be decomposed.
- the epoxidation reaction can proceed, for example, by stirring a mixture containing at least the compound represented by formula (5) and an epoxidizing agent for about 1 to 5 hours.
- the epoxidation reaction may be performed by adding a reducing agent such as sodium sulfite, potassium sulfite, ammonium sulfite, sodium hydrogen sulfite, potassium hydrogen sulfite, ammonium hydrogen sulfite, sodium thiosulfate, or potassium thiosulfate to the reaction system. It can be terminated by quenching the agent. After completion of the reaction, the reaction product can be separated and purified by, for example, known or conventional separation and purification means such as filtration, concentration, distillation, extraction, crystallization, recrystallization, adsorption, column chromatography, or a combination of these. .
- a reducing agent such as sodium sulfite, potassium sulfite, ammonium sulfite, sodium hydrogen sulfite, potassium hydrogen sulfite, ammonium hydrogen sulfite, sodium thiosulfate, or potassium thiosulfate.
- the alicyclic epoxy compound (A) is represented by the following formula (6).
- R 1 to R 22 are the same as defined above.
- It can manufacture also by epoxidizing the compound (diolefin compound) represented by these.
- Epoxidation of the compound represented by the formula (6) can be carried out using an epoxidizing agent, for example, in the same manner as the epoxidation of the compound represented by the above formula (5).
- peracid such as performic acid, peracetic acid, perbenzoic acid, metachloroperbenzoic acid, trifluoroperacetic acid, hydrogen peroxide, and the like can be used.
- metachloroperbenzoic acid is preferable because it is easily available.
- the amount of the epoxidizing agent is not particularly limited, but is preferably 3.0 mol or less, more preferably 2.2 to 2.6 mol, per 1 mol of the compound represented by the formula (6).
- the epoxidation reaction of the compound represented by the formula (6) may be performed in the presence of a solvent.
- the solvent is not particularly limited as long as it does not inhibit the progress of the reaction, and examples thereof include aromatic compounds such as toluene and benzene; aliphatic hydrocarbons such as hexane and cyclohexane; esters such as ethyl acetate.
- the amount of the solvent used is not particularly limited, but is preferably about 3 to 10 times by weight of the compound represented by the formula (6).
- the reaction temperature in the epoxidation reaction is not particularly limited, but is preferably 0 to 60 ° C., more preferably 10 to 50 ° C., and particularly preferably 20 to 40 ° C. If the reaction temperature is below 0 ° C, the reaction may be slow. On the other hand, when the reaction temperature exceeds 60 ° C., the epoxidizing agent may be decomposed.
- the epoxidation reaction can proceed, for example, by stirring a mixture containing at least the compound represented by formula (6) and the epoxidizing agent for about 1 to 5 hours.
- the epoxidation reaction may be performed by adding a reducing agent such as sodium sulfite, potassium sulfite, ammonium sulfite, sodium hydrogen sulfite, potassium hydrogen sulfite, ammonium hydrogen sulfite, sodium thiosulfate, or potassium thiosulfate to the reaction system. It can be terminated by quenching the agent. After completion of the reaction, the reaction product can be separated and purified by, for example, known or conventional separation and purification means such as filtration, concentration, distillation, extraction, crystallization, recrystallization, adsorption, column chromatography, or a combination of these. .
- a reducing agent such as sodium sulfite, potassium sulfite, ammonium sulfite, sodium hydrogen sulfite, potassium hydrogen sulfite, ammonium hydrogen sulfite, sodium thiosulfate, or potassium thiosulfate.
- the compound (diolefin compound) represented by Formula (6) is, for example, the following formula (8)
- R 1 to R 11 are the same as or different from each other, and each represents a hydrogen atom, a methyl group, or an ethyl group.
- X represents a chlorine atom, a bromine atom, an iodine atom, a benzenesulfonyloxy group, a p-toluenesulfonyloxy group, a methanesulfonyloxy group, or a trifluoromethanesulfonyloxy group.
- R 12 to R 22 are the same as or different from each other, and each represents a hydrogen atom, a methyl group, or an ethyl group.
- Y represents a chlorine atom, a bromine atom, or an iodine atom.
- It can manufacture by making the compound represented by these react.
- the above reaction is preferably performed in the presence of a catalyst.
- the catalyst include an iron catalyst, a copper catalyst, and a nickel catalyst. Among these, an iron catalyst or a copper catalyst is preferable.
- the amount of the iron catalyst used is not particularly limited, but is preferably 0.001 to 0.3 mol, more preferably 0.005 to 0.2 mol, relative to 1 mol of the compound represented by the formula (8). Particularly preferred is 0.01 to 0.1 mol. If an iron catalyst is used in the said range, the compound represented by Formula (6) can be manufactured with the outstanding yield.
- a tertiary carboxylic acid amide such as N-methylpyrrolidinone (NMP) and a tertiary phosphoric acid amide such as hexamethylphosphoric triamide (HMPA) are used together with the iron catalyst.
- NMP N-methylpyrrolidinone
- HMPA hexamethylphosphoric triamide
- the use of tertiary amides is preferable in that the yield can be remarkably improved.
- the amount of the tertiary amide used is not particularly limited, but is preferably 0.1 to 5 mol, more preferably 0.5 to 3 mol, relative to 1 mol of the compound represented by the formula (8). Particularly preferred is 0.5 to 2 moles.
- the copper catalyst examples include copper halides such as CuCl 2 and copper sulfonates such as copper (I) trifluoromethanesulfonate (Cu (OTf)). These can be used alone or in combination of two or more.
- the amount of the copper catalyst used is not particularly limited, but is preferably 0.005 to 0.2 mol, more preferably 0.005 to 0.15 mol, relative to 1 mol of the compound represented by the formula (8). Particularly preferred is 0.01 to 0.1 mol.
- the compound represented by Formula (6) can be manufactured with the outstanding yield.
- R 23 and R 24 are the same or different and each represents a chain aliphatic hydrocarbon group, a cyclic aliphatic hydrocarbon group, or an aromatic hydrocarbon group.
- Examples of the chain aliphatic hydrocarbon group in R 23 and R 24 include, for example, methyl group, ethyl group, propyl group, isopropyl group, n-butyl group, isobutyl group, s-butyl group, t-butyl group, pentyl group Alkyl groups having 1 to 20 carbon atoms (preferably 1 to 10 and more preferably 1 to 3) such as hexyl group, decyl group and dodecyl group; 2 carbon atoms such as vinyl group, allyl group and 1-butenyl group Alkenyl group having about 20 to 20 (preferably 2 to 10, more preferably 2 to 3); Alkynyl having about 2 to 20 carbon atoms (preferably 2 to 10, more preferably 2 to 3) such as ethynyl group and propynyl group Groups and the like.
- Examples of the cyclic aliphatic hydrocarbon group for R 23 and R 24 include 3 to 20 members (preferably 3 to 15 members, more preferably cyclopropyl group, cyclobutyl group, cyclopentyl group, cyclohexyl group, cyclooctyl group, etc.).
- a bridged cyclic hydrocarbon group such as 1 7,10 ] dodecan-3-yl group.
- aromatic hydrocarbon group in R 23 and R 24 examples include aromatic hydrocarbon groups having about 6 to 14 (preferably 6 to 10) carbon atoms such as a phenyl group, a p-methylphenyl group, and a naphthyl group. Can be mentioned.
- a compound in which one of R 23 and R 24 is an aromatic hydrocarbon group is preferable, and in particular, 1-phenylpropyne, 1-phenylbutyne, 1- (p- Methylphenyl) propyne, 1- (p-methylphenyl) butyne and the like are preferable.
- the amount of the compound represented by the formula (9) is not particularly limited, but is preferably 0.01 to 0.4 mol, more preferably 0.001 mol per 1 mol of the compound represented by the formula (8).
- the amount is from 01 to 0.3 mol, particularly preferably from 0.02 to 0.2 mol.
- the above reaction can be carried out in the presence or absence of a solvent.
- the solvent is not particularly limited as long as it does not inhibit the progress of the reaction. Examples thereof include hydrocarbons (eg, hexane, cyclohexane, heptane, toluene); ethers (eg, diethyl ether, tetrahydrofuran (THF) ) Etc.).
- the amount of the solvent used is not particularly limited, but is preferably about 1 to 10 times the weight of the compound represented by the formula (8).
- the above reaction may be performed under normal pressure, or may be performed under reduced pressure or under pressure.
- the reaction atmosphere is not particularly limited as long as the reaction is not inhibited, and may be any of an air atmosphere, a nitrogen atmosphere, an argon atmosphere, and the like.
- the reaction temperature is not particularly limited, but 20 to 100 ° C. is preferable.
- the reaction time is not particularly limited but is preferably 2 to 10 hours.
- the reaction can be carried out by any method such as batch, semi-batch, and continuous methods.
- reaction product can be separated and purified by, for example, known or conventional separation and purification means such as filtration, concentration, distillation, extraction, crystallization, recrystallization, adsorption, column chromatography, or a combination of these. .
- a compound represented by the above formula (8) and R 1 to R 11 are all hydrogen atoms is, for example, 1,2,5,6-tetrahydrobenzyl alcohol and HX (X is the same as above) It is obtained by reacting.
- the reaction between 1,2,5,6-tetrahydrobenzyl alcohol and HX is preferably performed in the presence of a solvent.
- the solvent is not particularly limited as long as it does not inhibit the progress of the reaction.
- hydrocarbons for example, hexane, cyclohexane, heptane, toluene, etc.
- ethers for example, diethyl ether, tetrahydrofuran (THF)) Etc.
- the amount of the solvent used is not particularly limited, but it is preferably about 1 to 10 times the weight of 1,2,5,6-tetrahydrobenzyl alcohol.
- the reaction between 1,2,5,6-tetrahydrobenzyl alcohol and HX may be performed under normal pressure, or may be performed under reduced pressure or under pressure.
- the reaction atmosphere is not particularly limited as long as the reaction is not inhibited, and may be any of an air atmosphere, a nitrogen atmosphere, an argon atmosphere, and the like.
- the reaction temperature is not particularly limited, but is preferably about 20 to 130 ° C.
- the reaction time is not particularly limited, but is preferably about 1 to 50 hours.
- the reaction can be carried out by any method such as batch, semi-batch, and continuous methods.
- a compound represented by the above formula (7) (Grignard reagent), for example, a compound represented by the formula (8) is obtained by reacting further magnesium and iodine (I 2).
- the reaction of the compound represented by the formula (8), magnesium and iodine (I 2 ) is preferably performed in the presence of a solvent.
- the solvent is not particularly limited as long as it does not inhibit the progress of the reaction.
- hydrocarbons eg, hexane, heptane, toluene, etc.
- ethers eg, diethyl ether, tetrahydrofuran (THF), etc.
- Etc e.g, diethyl ether, tetrahydrofuran (THF), etc.
- the amount of the solvent used is not particularly limited, but is preferably about 2 to 10 times by weight of the compound represented by the formula (8).
- the reaction of the compound represented by the formula (8), magnesium and iodine (I 2 ) may be performed under normal pressure, or may be performed under reduced pressure or under pressure.
- the reaction atmosphere of the above reaction is not particularly limited as long as the reaction is not inhibited, and may be any of an air atmosphere, a nitrogen atmosphere, an argon atmosphere, and the like.
- the reaction temperature is not particularly limited, but is preferably about 10 to 100 ° C.
- the reaction time is not particularly limited, but is preferably about 1 to 3 hours.
- the reaction can be carried out by any method such as batch, semi-batch, and continuous methods.
- the alicyclic epoxy compound (A) can be used singly or in combination of two or more.
- the content of the alicyclic epoxy compound (A) in the curable epoxy resin composition of the present invention is not particularly limited, but the curable epoxy resin composition ( 100% by weight) is preferably 0.1% by weight or more (for example, 0.1% by weight or more and less than 100% by weight), more preferably 1% by weight or more, still more preferably 5 to 90% by weight, The amount is preferably 10% by weight or more, and most preferably 15 to 80% by weight.
- the content (blending amount) is not particularly limited, but is preferably 1% by weight or more (eg, 1 to 100% by weight), more preferably 10% by weight or more, still more preferably 20% by weight or more, and particularly preferably 50% by weight. % Or more.
- the curing rate of the curable epoxy resin composition may be insufficient, or the heat resistance and transparency of the cured product may be insufficient. .
- the curing agent (B) in the curable epoxy resin composition of the present invention has a function of curing the curable epoxy resin composition by reacting with a cationic curable compound such as the alicyclic epoxy compound (A). It is.
- a known or conventional curing agent can be used as a curing agent for epoxy resin, and is not particularly limited.
- acid anhydrides (acid anhydride curing agents), amines ( Amine curing agents), polyamide resins, imidazoles (imidazole curing agents), polymercaptans (polymercaptan curing agents), phenols (phenolic curing agents), polycarboxylic acids, dicyandiamides, organic acid hydrazides, etc.
- acid anhydrides (acid anhydride curing agents)
- amines Amine curing agents
- polyamide resins imidazoles (imidazole curing agents)
- polymercaptans polymercaptan curing agents
- phenols phenolic curing agents
- polycarboxylic acids dicyandiamides
- organic acid hydrazides etc.
- acid anhydride as the curing agent (B), a known or commonly used acid anhydride (acid anhydride curing agent) can be used, and is not particularly limited.
- Methyltetrahydrophthalic anhydride (4-methyltetrahydrophthalic anhydride, 3-methyltetrahydrophthalic anhydride, etc.), methylhexahydrophthalic anhydride (4-methylhexahydrophthalic anhydride, 3-methylhexahydrophthalic anhydride, etc.)
- Dodecenyl succinic anhydride methyl endomethylenetetrahydrophthalic anhydride, phthalic anhydride, maleic anhydride, tetrahydrophthalic anhydride, hexahydrophthalic anhydride, methylcyclohexenedicarboxylic anhydride, pyromellitic anhydride, trimellitic anhydride, Benzophenone tetracarboxylic
- acid anhydrides for example, methyltetrahydrophthalic anhydride, methylhexahydrophthalic anhydride, dodecenyl succinic anhydride, methylendomethylenetetrahydrophthalic anhydride, etc.
- a solid acid anhydride at 25 ° C. for example, by dissolving the acid anhydride in a liquid acid anhydride at 25 ° C. to form a liquid mixture, the curing agent (B in the curable epoxy resin composition of the present invention) ) Tends to be improved.
- saturated monocyclic hydrocarbon dicarboxylic acid anhydrides (including those in which a substituent such as an alkyl group is bonded to the ring) are preferable from the viewpoint of heat resistance and transparency of the cured product.
- amines (amine-based curing agent) as the curing agent (B), known or conventional amine-based curing agents can be used, and are not particularly limited.
- ethylenediamine, diethylenetriamine, triethylenetetramine, tetraethylene Aliphatic amines such as pentamine, dipropylenediamine, diethylaminopropylamine, polypropylenetriamine; mensendiamine, isophoronediamine, bis (4-amino-3-methyldicyclohexyl) methane, diaminodicyclohexylmethane, bis (aminomethyl) cyclohexane
- Cycloaliphatic polyamines such as N-aminoethylpiperazine, 3,9-bis (3-aminopropyl) -3,4,8,10-tetraoxaspiro (5,5) undecane; m-phenylenediamine, p-phenyle Diamine, tolylene-2,4-d
- phenols phenolic curing agent
- curing agent (B) known or commonly used phenolic curing agents can be used, and are not particularly limited.
- novolac type phenol resins novolac type cresol resins
- examples include paraxylylene-modified phenol resins, aralkyl resins such as paraxylylene / metaxylylene-modified phenol resins, terpene-modified phenol resins, dicyclopentadiene-modified phenol resins, and triphenol propane.
- polyamide resin as the curing agent (B) examples include a polyamide resin having one or both of a primary amino group and a secondary amino group in the molecule.
- imidazole (imidazole curing agent) as the curing agent (B) a known or commonly used imidazole curing agent can be used, and is not particularly limited, and examples thereof include 2-methylimidazole and 2-ethyl-4.
- polymercaptans examples include liquid polymercaptan and polysulfide resin.
- polycarboxylic acids examples include adipic acid, sebacic acid, terephthalic acid, trimellitic acid, carboxyl group-containing polyester, and the like.
- the curing agent (B) acid anhydrides (acid anhydride curing agents) are preferable from the viewpoint of heat resistance and transparency of the cured product.
- curing agent (B) can also be used individually by 1 type in the curable epoxy resin composition of this invention, and can also be used in combination of 2 or more type.
- the curing agent (B) commercially available products can be used. For example, trade names “Rikacid MH-700”, “Rikacid MH-700F” (above, Shin Nippon Rika Co., Ltd.); “HN-5500” (manufactured by Hitachi Chemical Co., Ltd.).
- the content of the curing agent (B) in the curable epoxy resin composition of the present invention is not particularly limited, but is a cation contained in the curable epoxy resin composition.
- the amount is preferably 50 to 200 parts by weight, more preferably 80 to 150 parts by weight, based on 100 parts by weight of the total amount of the curable compound. More specifically, it is preferably used in a ratio of 0.5 to 1.5 equivalents per 1 equivalent of epoxy groups in all compounds having an epoxy group contained in the curable epoxy resin composition of the present invention.
- the content of the curing agent (B) is less than 50 parts by weight, the curing becomes insufficient, and the heat resistance and toughness of the cured product tend to decrease.
- curing agent (B) exceeds 200 weight part, hardened
- the curable epoxy resin composition of the present invention preferably further contains a curing accelerator (C).
- the curing accelerator (C) is a compound having a function of accelerating the reaction rate when a cationic curable compound (particularly a compound having an epoxy group) reacts with the curing agent (B).
- the curing accelerator (C) may be a known or conventional curing accelerator, and is not particularly limited.
- DBU 1,8-diazabicyclo [5.4.0] undecene-7
- DBN 1,5-diazabicyclo [4.3.0] nonene-5
- phenol salt, octylate, p-toluenesulfonate, formate, tetraphenylborate, etc. benzyldimethylamine, 2,4,6-tris (dimethylaminomethyl) phenol, N, N-dimethylcyclohexyl Tertiary amines such as amines; 2-ethyl-4-methylimidazole, 1-cyanoethyl-2-ethyl-4-methylimidazole Phosphines such as triphenylphosphine and tris (dimethoxy)
- the content of the curing accelerator (C) in the curable epoxy resin composition is not particularly limited, but is cationic curable contained in the curable epoxy resin composition.
- the amount is preferably 0.01 to 5 parts by weight, more preferably 0.03 to 3 parts by weight, and still more preferably 0.03 to 2 parts by weight with respect to 100 parts by weight of the total amount of the compound.
- the curing accelerator (C) is less than 0.01 parts by weight, the curing accelerating effect may be insufficient.
- the curable epoxy resin composition of the present invention may contain a cationic curable compound other than the alicyclic epoxy compound (A) (sometimes referred to as “other cationic curable compounds”).
- a cationic curable compound other than the alicyclic epoxy compound (A) sometimes referred to as “other cationic curable compounds”.
- Other cationic curable compounds include, for example, alicyclic epoxy compounds other than alicyclic epoxy compounds (A), aromatic glycidyl ether type epoxy compounds, aliphatic polyhydric alcohol polyglycidyl ethers, oxetane compounds (oxetanyl compounds).
- vinyl ether compounds compounds having a vinyl ether group).
- the alicyclic epoxy compound other than the alicyclic epoxy compound (A) (i) an epoxy group (alicyclic ring) composed of two adjacent carbon atoms and oxygen atoms constituting the alicyclic ring.
- a compound other than the alicyclic epoxy compound (A) having an epoxy group) (ii) a compound in which an epoxy group is directly bonded to the alicyclic ring by a single bond, (iii) a compound having an alicyclic ring and a glycidyl group, and the like. Can be mentioned.
- a compound other than the alicyclic epoxy compound (A) having an epoxy group (alicyclic epoxy group) composed of two adjacent carbon atoms and oxygen atoms constituting the alicyclic ring (i) described above is known or known. Any one selected from conventional ones can be used. Especially, as said alicyclic epoxy group, a cyclohexene oxide group is preferable.
- alicyclic epoxy compound (A) having an epoxy group composed of two adjacent carbon atoms and oxygen atoms constituting the alicyclic ring from the viewpoint of transparency and heat resistance.
- a compound having a cyclohexene oxide group is preferable, and a compound represented by the following formula (I) (alicyclic epoxy compound) is particularly preferable.
- Z represents a single bond or a linking group (a divalent group having one or more atoms).
- the linking group include a divalent hydrocarbon group (however, a group represented by the following formula (i) is not included), an alkenylene in which part or all of the carbon-carbon double bond is epoxidized.
- R 10 to R 13 are the same as or different from each other, and each represents a hydrogen atom, a methyl group, or an ethyl group. ]
- Examples of the compound in which Z in the above formula (I) is a single bond include 3,4,3 ′, 4′-diepoxybicyclohexane and the like.
- Examples of the divalent hydrocarbon group include linear or branched alkylene groups having 1 to 18 carbon atoms other than the group represented by formula (i), and divalent alicyclic hydrocarbon groups. It is done.
- Examples of the linear or branched alkylene group having 1 to 18 carbon atoms include a methylene group, a methylmethylene group, a dimethylmethylene group, and a trimethylene group.
- divalent alicyclic hydrocarbon group examples include 1,2-cyclopentylene group, 1,3-cyclopentylene group, cyclopentylidene group, 1,2-cyclohexylene group, 1,3-cyclopentylene group, And bivalent cycloalkylene groups (including cycloalkylidene groups) such as cyclohexylene group, 1,4-cyclohexylene group, and cyclohexylidene group.
- alkenylene group in the alkenylene group in which part or all of the carbon-carbon double bond is epoxidized include, for example, vinylene group, propenylene group, 1-butenylene group And straight-chain or branched alkenylene groups having 2 to 8 carbon atoms such as 2-butenylene group, butadienylene group, pentenylene group, hexenylene group, heptenylene group, octenylene group and the like.
- the epoxidized alkenylene group is preferably an alkenylene group in which all of the carbon-carbon double bonds are epoxidized, more preferably 2 to 4 carbon atoms in which all of the carbon-carbon double bonds are epoxidized. Alkenylene group.
- linking group Z a linking group containing an oxygen atom is particularly preferable, and specifically, —CO—, —O—CO—O—, —COO—, —O—, —CONH—, epoxidation, and the like.
- Representative examples of the alicyclic epoxy compounds represented by the above formula (I) include compounds represented by the following formulas (I-1) to (I-10), bis (3,4-epoxycyclohexylmethyl) ) Ether, 1,2-epoxy-1,2-bis (3,4-epoxycyclohexane-1-yl) ethane, 2,2-bis (3,4-epoxycyclohexane-1-yl) propane, etc. .
- a and b each represents an integer of 1 to 30.
- R in the following formula (I-5) is an alkylene group having 1 to 8 carbon atoms, and is a methylene group, ethylene group, propylene group, isopropylene group, butylene group, isobutylene group, s-butylene group, pentylene group, hexylene.
- linear or branched alkylene groups such as a group, a heptylene group, and an octylene group.
- linear or branched alkylene groups having 1 to 3 carbon atoms such as a methylene group, an ethylene group, a propylene group, and an isopropylene group are preferable.
- c1 to c6 each represents an integer of 1 to 30.
- Examples of the compound (ii) in which the epoxy group is directly bonded to the alicyclic ring with a single bond include compounds represented by the following formula (II).
- R ′ is a group obtained by dividing e-valent alcohol from e-valent alcohol in the structural formula, and d and e each represent a natural number.
- the e-valent alcohol [R ′-(OH) e ] include polyhydric alcohols such as 2,2-bis (hydroxymethyl) -1-butanol (such as alcohols having 1 to 15 carbon atoms).
- e is preferably from 1 to 6, and d is preferably from 1 to 30.
- d in each () (inside parenthesis) may be the same or different.
- Examples of the compound (iii) having an alicyclic ring and a glycidyl group include 2,2-bis [4- (2,3-epoxypropoxy) cyclohexyl] propane, 2,2-bis [3,5 A compound obtained by hydrogenating a bisphenol A type epoxy compound such as dimethyl-4- (2,3-epoxypropoxy) cyclohexyl] propane (hydrogenated bisphenol A type epoxy compound); bis [o, o- (2,3 -Epoxypropoxy) cyclohexyl] methane, bis [o, p- (2,3-epoxypropoxy) cyclohexyl] methane, bis [p, p- (2,3-epoxypropoxy) cyclohexyl] methane, Hydrogenation of bisphenol F-type epoxy compounds such as bis [3,5-dimethyl-4- (2,3-epoxypropoxy) cyclohexyl] methane Compound (hydrogenated bisphenol F type epoxy compound
- aromatic glycidyl ether type epoxy compound examples include bisphenol A type epoxy compounds, bisphenol F type epoxy compounds, biphenol type epoxy compounds, phenol novolac type epoxy compounds, cresol novolac type epoxy compounds, and bisphenol A cresol novolak type epoxy compounds.
- aromatic glycidyl ether type epoxy compound examples include bisphenol A type epoxy compounds, bisphenol F type epoxy compounds, biphenol type epoxy compounds, phenol novolac type epoxy compounds, cresol novolac type epoxy compounds, and bisphenol A cresol novolak type epoxy compounds.
- examples thereof include an epoxy compound obtained from a compound, a naphthalene type epoxy compound and trisphenolmethane.
- Examples of the aliphatic polyhydric alcohol polyglycidyl ether described above include glycerin, tetramethylene glycol, sorbitol, sorbitan, polyglycerin, pentaerythritol, tetramethylene glycol, hexamethylene glycol, trimethylolpropane, polyethylene glycol, and polypropylene glycol.
- Examples include polyglycidyl ethers of aliphatic polyhydric alcohols.
- oxetane compound examples include 3,3-bis (vinyloxymethyl) oxetane, 3-ethyl-3- (2-ethylhexyloxymethyl) oxetane, 3-ethyl-3- (hydroxymethyl) oxetane, 3- Ethyl-3-[(phenoxy) methyl] oxetane, 3-ethyl-3- (hexyloxymethyl) oxetane, 3-ethyl-3- (chloromethyl) oxetane, 3,3-bis (chloromethyl) oxetane, 1, 4-bis [(3-ethyl-3-oxetanylmethoxy) methyl] benzene, bis ⁇ [1-ethyl (3-oxetanyl)] methyl ⁇ ether, 4,4′-bis [(3-ethyl-3-oxetanyl) Methoxymethyl] bicyclohexyl,
- vinyl ether compound examples include 2-hydroxyethyl vinyl ether, 3-hydroxypropyl vinyl ether, 2-hydroxypropyl vinyl ether, 2-hydroxyisopropyl vinyl ether, 4-hydroxybutyl vinyl ether, 3-hydroxybutyl vinyl ether, 2-hydroxybutyl vinyl ether.
- curable epoxy resin composition of the present invention other cationic curable compounds can be used singly or in combination of two or more. Commercially available products can also be used as other cationic curable compounds.
- the content of the other cation curable compounds in the curable epoxy resin composition of the present invention is not particularly limited, but the total amount of the cation curable compounds (100 % By weight) is preferably 90% by weight or less (for example, 0 to 90% by weight), more preferably 80% by weight or less.
- the curable epoxy resin composition of the present invention may contain various additives within a range that does not impair the effects of the present invention.
- a compound having a hydroxyl group such as ethylene glycol, diethylene glycol, propylene glycol, or glycerin is contained as the additive, the reaction can be allowed to proceed slowly.
- a curing catalyst such as fillers, plasticizers, leveling agents, antistatic agents, mold release agents, flame retardants, colorants, antioxidants, ultraviolet absorbers, ion adsorbents, pigments and dyes can be used.
- plasticizers such as plasticizers, leveling agents, antistatic agents, mold release agents, flame retardants, colorants, antioxidants, ultraviolet absorbers, ion adsorbents, pigments and dyes
- leveling agents such as fillers, plasticizers, leveling agents, antistatic agents, mold release agents, flame retardants, colorants, antioxidants, ultraviolet absorbers, ion adsorbents, pigments and dyes can be used. .
- the curable epoxy resin composition of the present invention is not particularly limited, but can be prepared by stirring and mixing each of the above-described components in a heated state as necessary.
- the curable epoxy resin composition of the present invention can be used as a one-component composition in which each component is mixed in advance.
- components divided into two or more each component The component may be a mixture of two or more components
- may be used as a multi-liquid composition for example, a two-liquid system
- the stirring / mixing method is not particularly limited, and for example, known or conventional stirring / mixing means such as various mixers such as a dissolver and a homogenizer, a kneader, a roll, a bead mill, and a self-revolving stirrer can be used. Further, after stirring and mixing, defoaming may be performed under vacuum.
- known or conventional stirring / mixing means such as various mixers such as a dissolver and a homogenizer, a kneader, a roll, a bead mill, and a self-revolving stirrer can be used. Further, after stirring and mixing, defoaming may be performed under vacuum.
- a cured product having a high glass transition temperature and particularly excellent balance between heat resistance and transparency obtained by curing the curable epoxy resin composition of the present invention.
- the cured product may be referred to as “the cured product of the present invention”).
- the temperature for heating during curing is not particularly limited, but is preferably 45 to 200 ° C, more preferably 50 to 190 ° C, and further preferably 55 to 180 ° C.
- the heating time (curing time) for curing is not particularly limited, but is preferably 30 to 600 minutes, more preferably 45 to 540 minutes, and further preferably 60 to 480 minutes.
- the curing conditions depend on various conditions, for example, when the curing temperature is increased, the curing time can be shortened, and when the curing temperature is decreased, the curing time can be appropriately increased. Moreover, hardening can also be performed in one step and can also be performed in two or more steps.
- the curable epoxy resin composition of the present invention includes a coating agent, an ink, an adhesive, a sealant, a sealant, a resist, a composite material [for example, fiber reinforced plastic (FRP) such as CFRP, GFRP, etc.], a transparent substrate, Transparent film or sheet, optical material (for example, optical lens, etc.), optical modeling material, electronic material (for example, electronic paper, touch panel, solar cell substrate, optical waveguide, light guide plate, holographic memory, etc.), mechanical component material, electricity It can be used for various applications such as parts materials, automobile parts materials, civil engineering and building materials, molding materials, plastic forming materials, and solvents.
- FRP fiber reinforced plastic
- the unit of the mixture ratio of each component of the curable epoxy resin composition shown in Table 1 is parts by weight. Further, “-” in Table 1 means that the component was not blended.
- the aqueous layer was extracted with ethyl acetate, and the obtained organic layer was washed twice with an aqueous sodium bicarbonate solution and once with water, and then concentrated. Thereafter, the residue after concentration was purified by silica gel column chromatography to transparently obtain 0.689 g of a compound represented by the following formula (1-1) (1,2-bis (3,4-epoxycyclohexanyl) ethane). Obtained as a liquid.
- the yield based on the compound represented by the formula (6-1) of the compound represented by the formula (1-1) was 59%.
- Example 1 Manufacture of curable epoxy resin composition and cured product thereof]
- the product name “Ricacid MH-700F” (curing agent, manufactured by Shin Nippon Rika Co., Ltd.)
- the product name “U-CAT 12XD” (curing accelerator, San Apro ( ) And ethylene glycol (diluent, manufactured by Wako Pure Chemical Industries, Ltd.) using a self-revolving stirrer (trade name “Awatori Nerita AR-250”, manufactured by Shinky Corporation)
- the compound [1,2-bis (3,4-epoxycyclohexane) represented by the formula (1-1) obtained in Production Example 1 was used so that the blending ratio (unit: parts by weight) shown in Table 1 was obtained.
- (Sanyl) ethane] and the curing agent composition obtained above are mixed uniformly using a self-revolving stirrer (trade name “Awatori Nerita AR-250”, manufactured by Shinky Co., Ltd.).
- the curable epoxy resin composition was produced by defoaming. Further, the curable epoxy resin composition obtained above was cast into a mold (a casting mold having a thickness of 4 mm, 3 mm, and 0.5 mm), and each was placed in a resin curing oven, and the curing conditions shown in Table 1 were obtained. Cured by heating at [100 ° C. for 2 hours, then at 150 ° C. for 4 hours] to produce a cured product.
- Comparative Examples 1 to 3 Manufacture of curable epoxy resin composition and cured product thereof
- a curable epoxy resin composition and a cured product thereof were produced in the same manner as in Example 1 except that the type and amount of the epoxy compound, the composition of the curing agent composition, and the curing conditions were changed as shown in Table 1. .
- Viscosity of curable epoxy resin composition 25 ° C.
- the viscosity at 25 ° C. of the curable epoxy resin compositions obtained in Examples and Comparative Examples was measured using a digital viscometer (model number “DVU-EII type”, manufactured by Tokimec Co., Ltd.), rotor: standard 1 ° 34. ′ ⁇ R24, temperature: 25 ° C., rotation speed: 0.5 to 10 rpm.
- TMA glass transition temperature
- linear expansion coefficients of the cured products obtained in the examples and comparative examples were obtained by using ⁇ 1 as the slope of the straight line on the low temperature side from the glass transition temperature obtained above and ⁇ 2 as the slope of the straight line on the high temperature side from the glass transition point. It was.
- the cured product (Example 1) of the curable epoxy resin composition of the present invention has a high glass transition temperature and high transparency, and has a small decrease in transparency during heating, resulting in heat resistance. And the balance of transparency was excellent. More specifically, the curable epoxy resin composition of the present invention (Example 1) is compared with a composition containing no alicyclic epoxy compound (A), for example, the compositions obtained in Comparative Examples 1 to 3. It has a low viscosity and excellent handleability, and the cured product has a high glass transition temperature and a high level of transparency as compared with the cured products obtained in Comparative Examples 1 to 3. Moreover, it was most excellent in transparency retention during heating.
- A no alicyclic epoxy compound
- the curable epoxy resin composition of the present invention includes a coating agent, an ink, an adhesive, a sealant, a sealant, a resist, a composite material [for example, fiber reinforced plastic (FRP) such as CFRP, GFRP, etc.], a transparent substrate, Transparent film or sheet, optical material (for example, optical lens, etc.), optical modeling material, electronic material (for example, electronic paper, touch panel, solar cell substrate, optical waveguide, light guide plate, holographic memory, etc.), mechanical component material, electricity It can be used for various applications such as parts materials, automobile parts materials, civil engineering and building materials, molding materials, plastic forming materials, and solvents.
- FRP fiber reinforced plastic
Abstract
Description
で表される脂環式エポキシ化合物(A)と硬化剤(B)とを含むことを特徴とする硬化性エポキシ樹脂組成物を提供する。
[1]上記式(1)で表される脂環式エポキシ化合物(A)と硬化剤(B)とを含むことを特徴とする硬化性エポキシ樹脂組成物。
[2]上記式(1)におけるR1~R22の全てが水素原子である[1]に記載の硬化性エポキシ樹脂組成物。
[3]脂環式エポキシ化合物(A)が、位置異性体(エポキシ基の位置が異なる構造異性体)の含有量が5%以下である[1]又は[2]に記載の硬化性エポキシ樹脂組成物。
[4]脂環式エポキシ化合物(A)の含有量が、硬化性エポキシ樹脂組成物(100重量%)に対して0.1重量%以上、100重量%未満である[1]~[3]のいずれか1つに記載の硬化性エポキシ樹脂組成物。
[5]硬化性エポキシ樹脂組成物に含まれるカチオン硬化性化合物の全量に対する脂環式エポキシ化合物(A)の含有量が、1~100重量%である[1]~[4]のいずれか1つに記載の硬化性エポキシ樹脂組成物。
[6]硬化剤(B)が酸無水物系硬化剤である[1]~[5]のいずれか1つに記載の硬化性エポキシ樹脂組成物。
[7]酸無水物系硬化剤が、飽和単環炭化水素ジカルボン酸の無水物である[6]に記載の硬化性エポキシ樹脂組成物。
[8]硬化剤(B)の含有量が、硬化性エポキシ樹脂組成物に含まれるカチオン硬化性化合物の全量100重量部に対して、50~200重量部である[1]~[7]のいずれか1つに記載の硬化性エポキシ樹脂組成物。
[9]硬化剤(B)の含有量が、硬化性エポキシ樹脂組成物に含まれる全てのエポキシ基を有する化合物におけるエポキシ基1当量当たり、0.5~1.5当量となる割合である[1]~[8]のいずれか1つに記載の硬化性エポキシ樹脂組成物。
[10]さらに、硬化促進剤(C)を含む[1]~[9]のいずれか1つに記載の硬化性エポキシ樹脂組成物。
[11]硬化促進剤(C)の含有量が、硬化性エポキシ樹脂組成物に含まれるカチオン硬化性化合物の全量100重量部に対して、0.01~5重量部である[10]に記載の硬化性エポキシ樹脂組成物。
[12]エチレングリコール、ジエチレングリコール、プロピレングリコール、及びグリセリンからなる群より選択される少なくとも1種の水酸基を有する化合物を含有する[1]~[11]のいずれか1つに記載の硬化性エポキシ樹脂組成物。
[13][1]~[12]のいずれか1つに記載の硬化性エポキシ樹脂組成物を硬化させることにより得られる硬化物。
本発明の硬化性エポキシ樹脂組成物は、下記式(1)で表される脂環式エポキシ化合物(A)(単に「脂環式エポキシ化合物(A)」と称する場合がある)と、硬化剤(B)とを必須成分として含む硬化性エポキシ樹脂組成物である。本発明の硬化性エポキシ樹脂組成物は、上記必須成分(成分(A)及び(B))以外にも必要に応じてその他の成分を含んでいてもよい。
本発明の硬化性エポキシ樹脂組成物における脂環式エポキシ化合物(A)は、上記式(1)で表される化合物である。式(1)中のR1~R22は、同一又は異なって、水素原子、メチル基、又はエチル基を示す。中でも、R1~R22としては水素原子が好ましく、R1~R22の全てが水素原子であることが特に好ましい。
1.下記式(3)で表される化合物と、下記式(3')で表される化合物とをメタセシス反応(特に、オレフィンメタセシス反応)に付す。
で表される化合物(ジオレフィン化合物)をエポキシ化することによっても製造できる。式(6)で表される化合物のエポキシ化は、例えば、上述の式(5)で表される化合物のエポキシ化と同様に、エポキシ化剤を使用して実施できる。
で表される化合物と、下記式(7)
で表される化合物とを反応させることによって製造できる。
本発明の硬化性エポキシ樹脂組成物における硬化剤(B)は、脂環式エポキシ化合物(A)等のカチオン硬化性化合物と反応することにより、硬化性エポキシ樹脂組成物を硬化させる働きを有する化合物である。硬化剤(B)としては、エポキシ樹脂用硬化剤として公知乃至慣用の硬化剤を使用することができ、特に限定されないが、例えば、酸無水物類(酸無水物系硬化剤)、アミン類(アミン系硬化剤)、ポリアミド樹脂、イミダゾール類(イミダゾール系硬化剤)、ポリメルカプタン類(ポリメルカプタン系硬化剤)、フェノール類(フェノール系硬化剤)、ポリカルボン酸類、ジシアンジアミド類、有機酸ヒドラジド等が挙げられる。
本発明の硬化性エポキシ樹脂組成物は、さらに硬化促進剤(C)を含むことが好ましい。硬化促進剤(C)は、カチオン硬化性化合物(特に、エポキシ基を有する化合物)が硬化剤(B)と反応する際に、その反応速度を促進する機能を有する化合物である。硬化促進剤(C)としては、公知乃至慣用の硬化促進剤を使用することができ、特に限定されないが、例えば、1,8-ジアザビシクロ[5.4.0]ウンデセン-7(DBU)又はその塩(例えば、フェノール塩、オクチル酸塩、p-トルエンスルホン酸塩、ギ酸塩、テトラフェニルボレート塩など);1,5-ジアザビシクロ[4.3.0]ノネン-5(DBN)又はその塩(例えば、フェノール塩、オクチル酸塩、p-トルエンスルホン酸塩、ギ酸塩、テトラフェニルボレート塩など);ベンジルジメチルアミン、2,4,6-トリス(ジメチルアミノメチル)フェノール、N,N-ジメチルシクロヘキシルアミンなどの3級アミン;2-エチル-4-メチルイミダゾール、1-シアノエチル-2-エチル-4-メチルイミダゾールなどのイミダゾール;リン酸エステル;トリフェニルホスフィン、トリス(ジメトキシ)ホスフィンなどのホスフィン類;テトラフェニルホスホニウムテトラ(p-トリル)ボレートなどのホスホニウム化合物;オクチル酸亜鉛、オクチル酸スズ、ステアリン酸亜鉛などの有機金属塩;アルミニウムアセチルアセトン錯体などの金属キレートなどが挙げられる。硬化促進剤(C)は一種を単独で使用することもできるし、二種以上を組み合わせて使用することもできる。
本発明の硬化性エポキシ樹脂組成物は、脂環式エポキシ化合物(A)以外のカチオン硬化性化合物(「その他のカチオン硬化性化合物」と称する場合がある)を含んでいてもよい。その他のカチオン硬化性化合物としては、例えば、脂環式エポキシ化合物(A)以外の脂環式エポキシ化合物、芳香族グリシジルエーテル型エポキシ化合物、脂肪族多価アルコールポリグリシジルエーテル、オキセタン化合物(オキセタニル化合物)、ビニルエーテル化合物(ビニルエーテル基を有する化合物)等が挙げられる。
本発明の硬化性エポキシ樹脂組成物は、上記以外にも、本発明の効果を損なわない範囲内で各種添加剤を含んでいてもよい。上記添加剤として、例えば、エチレングリコール、ジエチレングリコール、プロピレングリコール、グリセリン等の水酸基を有する化合物を含有させると、反応を緩やかに進行させることができる。その他にも、本発明の効果に悪影響を及ぼさない範囲で、硬化触媒、硬化助剤、オルガノシロキサン化合物、金属酸化物粒子、ゴム粒子、シリコーン系やフッ素系の消泡剤、シランカップリング剤、充填剤、可塑剤、レベリング剤、帯電防止剤、離型剤、難燃剤、着色剤、酸化防止剤、紫外線吸収剤、イオン吸着体、顔料、染料等の慣用の添加剤を使用することができる。
本発明の硬化性エポキシ樹脂組成物を硬化させることにより、ガラス転移温度が高く、特に耐熱性と透明性のバランスに優れた硬化物(本発明の硬化性エポキシ樹脂組成物を硬化させて得られる硬化物を「本発明の硬化物」と称する場合がある)を得ることができる。硬化の際に加熱する温度(硬化温度)は、特に限定されないが、45~200℃が好ましく、より好ましくは50~190℃、さらに好ましくは55~180℃である。また、硬化の際に加熱する時間(硬化時間)は、特に限定されないが、30~600分が好ましく、より好ましくは45~540分、さらに好ましくは60~480分である。硬化温度と硬化時間が上記範囲の下限値より低い場合は硬化が不十分となり、逆に上記範囲の上限値より高い場合は樹脂成分の分解が起きる場合があるので、いずれも好ましくない。硬化条件は種々の条件に依存するが、例えば、硬化温度を高くした場合は硬化時間を短く、硬化温度を低くした場合は硬化時間を長くする等により、適宜調整することができる。また、硬化は、一段階で行うこともできるし、二段階以上の多段階で行うこともできる。
[式(1-1)で表される化合物の製造(1)]
(1.式(2-1)で表される化合物の製造)
窒素雰囲気下で、[1,3-Bis(2,4,6-trimethylphenyl)-2-imidazolidinylidene]dichloro-(3-phenyl-1H-inden-1-ylidene)(tricyclohexylphosphine)ruthenium(II)(商品名「Umicore M2」、Umicore社製)1.0g(下記「セロキサイド2000」1モルに対して0.0025モルに相当)をトルエン(超脱水、和光純薬工業(株)製)53.3gに溶解させ、200mL三口フラスコへ仕込んだ。
三口フラスコの気相部へ窒素を吹き込みつつ、下記式(3-1)で表される化合物[1,2-エポキシ-4-ビニルシクロヘキサン、商品名「セロキサイド2000」、(株)ダイセル製]52.3gをシリンジで仕込んだ後、40℃で48時間撹拌した。その後、反応液を濃縮して得られた濃縮残渣をシリカゲルカラムクロマトグラフィーにて精製し、下記式(2-1)で表される化合物(エポキシ化合物)11.2gを褐色の固体として得た。式(2-1)で表される化合物の式(3-1)で表される化合物基準の収率は24.1%であった。
1H-NMRでは、式(3-1)で表される化合物のオレフィン部位に対応するδ4.8-5.8にかけて二種類あるピークが一種類に減少していることが確認された。
1H-NMR(500MHz,CDCl3,TMS基準):δ5.2-5.0(m,2H)、3.1-3.0(m,4H)、2.2-0.9(m,14H)
また、上記で得た生成物の臭化水素の酢酸溶液を用いた滴定により求めたオキシラン酸素濃度は14.3重量%と、理論値(14.5重量%)の99%であった。また、上記で得た生成物の示差熱・熱重量同時測定装置(TG/DTA)(商品名「EXSTAR TG/DTA6200」、エスアイアイ・ナノテクノロジー製)を用いて、窒素200mL/分を通気しつつ30℃から400℃まで10℃/分で昇温した測定で観測された融解に伴う吸熱ピークのトップ温度は、50℃であった。
触媒としての5%パラジウム炭素-エチレンジアミン複合錯体(5%Pd/C(en)、和光純薬工業(株)製)2.0g(Pd:0.1g)、上記で得た式(2-1)で表される化合物20.0g、及びTHF363gを1000mL三口フラスコへ仕込んだ後、水素雰囲気下、30℃で50時間撹拌した。その後、触媒をろ過で除いた液を濃縮して得られた濃縮残渣をシリカゲルカラムクロマトグラフィーにて精製し、下記式(1-1)で表される化合物(1,2-ビス(3,4-エポキシシクロヘキサニル)エタン)を淡黄色透明の液体として12.7g得た。式(1-1)で表される化合物の式(2-1)で表される化合物基準の収率は63%であった。
1H-NMRでは、式(2-1)で表される化合物の二重結合に対応するδ5.2-5.0のピークの消失が確認された。
1H-NMR(500MHz,CDCl3,TMS基準):δ3.2-3.1(m,4H)、2.2-0.8(m,18H)
また、上記で得た生成物の臭化水素の酢酸溶液を用いた滴定により求めたオキシラン酸素濃度は14.3重量%と、理論値(14.4重量%)の99%であった。
[式(1-1)で表される化合物の製造(2)]
(1.式(5-1)で表される化合物の製造)
窒素雰囲気下で、[1,3-Bis(2,4,6-trimethylphenyl)-2-imidazolidinylidene]dichloro-(3-phenyl-1H-inden-1-ylidene)(tricyclohexylphosphine)ruthenium(II)(商品名「Umicore M2」、Umicore社製)0.08g(下記4-ビニル-1-シクロヘキセン1モルに対して0.0001モルに相当)をトルエン(超脱水、和光純薬工業(株)製)90.0gに溶解させ、300mL三口フラスコへ仕込んだ。
上記三口フラスコの気相部へ窒素を吹き込みつつ、式(4-1)で表される化合物(4-ビニル-1-シクロヘキセン)89.5gをシリンジで仕込んだ後、40℃で24時間撹拌した。その後、反応液を濃縮して得られた濃縮残渣を減圧下(0.9kPa)、単蒸留で精製し、125~126℃の留分として下記式(5-1)で表される化合物(オレフィン化合物)37.1gを得た。式(5-1)で表される化合物の式(4-1)で表される化合物基準の収率は47.4%であった。
1H-NMRでは、式(4-1)で表される化合物の末端オレフィンに対応するδ5.1-4.9に見られるプロトンのピークの消失が確認された。
1H-NMR(500MHz,CDCl3,TMS基準):δ5.7-5.6(m,4H)、5.5-5.2(m,2H)、2.3-1.3(m,14H)
上記で得られた式(5-1)で表される化合物1.0gを酢酸エチル10gに溶解させた。氷冷により液温度を0~5℃に保ちながら含水のメタクロロ過安息香酸(純度70%)2.6g(式(5-1)で表される化合物1モルに対して2.0モルに相当)を20分かけて添加し、0~5℃で2時間撹拌した。次いで、得られた反応液へ10重量%チオ硫酸ナトリウム水溶液17gを加えて30分撹拌した後、トルエン10gを加えて分液し、水層を再度トルエン10gで抽出処理した。
得られた有機層を混合し、7重量%炭酸水素ナトリウム水溶液23gで2回、水20gで2回洗浄し、その後、有機層を濃縮した。ガスクロマトグラフィー内標法により、得られた濃縮残渣1.08g中、0.21gの下記式(2-1)で表される化合物(エポキシ化合物)が定量された。式(2-1)で表される化合物の式(5-1)で表される化合物基準の収率は18%であった。
上記で得た式(2-1)で表される化合物を原料として使用したこと以外は製造例1の2.と同様にして、式(1-1)で表される化合物(1,2-ビス(3,4-エポキシシクロヘキサニル)エタン)を製造した。
[式(1-1)で表される化合物の製造(3)]
(1.Grignard試薬の製造)
マグネシウム(0.414g、0.0171mol)、及びヨウ素(0.043g、0.17mmol)をテトラヒドロフラン(8.5mL)に加え、窒素雰囲気下、40℃で30分撹拌した。その後、下記式(10-1)で表されるテトラヒドロベンジルクロリド(2.23g、0.171mol)を40℃で1時間かけて滴下後、2時間還流させて下記式(7-1)で表されるGrignard試薬を調製した。
下記式(8-1)で表されるテトラヒドロベンジルブロミド(2.00g,0.0114mol)、1-フェニルプロピン(0.066g、0.571mmol、テトラヒドロベンジルブロミドの0.05mol倍)、及び塩化銅(II)(0.031g、0.224mmol、テトラヒドロベンジルブロミドの0.02mol倍)の混合液に、上記で得た式(7-1)で表されるGrignard試薬を氷冷下で30分かけて滴下した。次いで、反応液を30℃に昇温して3時間撹拌後、10%塩酸を加えて反応を停止し、分液した。
有機層を水で2回洗浄後、濃縮して下記式(6-1)で表される化合物(1,2-ビス(シクロヘキサ-3-エニル)エタン)を含む粗生成物を得た。粗生成物をガスクロマトグラフィーで定量した結果、式(6-1)で表される化合物のテトラヒドロベンジルブロミド基準の収率は87%であった。
1H-NMR(CDCl3):δ5.66(s,4H)、2.12-2.03(m,6H)、1.76-1.72(m,2H)、1.67-1.61(m,2H)、1.52-1.47(m,2H)、1.31-1.17(m,6H)
30℃で、下記式(6-1)で表される化合物1.00g(5.24mmol)のトルエン(5.0g)溶液に、含水のメタクロロ過安息香酸3.16g(純度:70%、12.6mmol、式(6-1)で表される化合物の2.4mol倍)を3回に分けて添加し、30℃で2時間撹拌した後、酢酸エチルで希釈し、さらにチオ硫酸ナトリウム水溶液を加えて30分撹拌した。
水層を酢酸エチルで抽出して、得られた有機層を炭酸水素ナトリウム水溶液で2回、水で1回洗浄した後濃縮した。その後、濃縮後の残渣をシリカゲルカラムクロマトグラフィーで精製して下記式(1-1)で表される化合物(1,2-ビス(3,4-エポキシシクロヘキサニル)エタン)0.689gを透明液体として得た。式(1-1)で表される化合物の式(6-1)で表される化合物基準の収率は59%であった。また、上記生成物の臭化水素の酢酸溶液を用いた滴定により求めたオキシラン酸素濃度は、13.9%(実測値)であった(計算値(理論値)は14.4%である)。
1H-NMR(CDCl3):δ3.15-3.11(m,4H)、2.15-2.11(m,2H)、2.03-1.98(m,2H)、1.85-1.78(m,1H)、1.73-1.67(m,1H)、1.45-1.28(m,5H)、1.13-1.07(m,6H)、0.91-0.88(m,1H)
[硬化性エポキシ樹脂組成物及びその硬化物の製造]
表1に示す配合割合(単位:重量部)で、商品名「リカシッド MH-700F」(硬化剤、新日本理化(株)製)、商品名「U-CAT 12XD」(硬化促進剤、サンアプロ(株)製)、及びエチレングリコール(希釈剤、和光純薬工業(株)製)を、自公転式攪拌装置(商品名「あわとり練太郎AR-250」、(株)シンキー製)を使用して均一に混合し、脱泡して硬化剤を含む組成物(硬化剤組成物)を得た。
次に、表1に示す配合割合(単位:重量部)となるように、製造例1で得た式(1-1)で表される化合物[1,2-ビス(3,4-エポキシシクロヘキサニル)エタン]と、上記で得た硬化剤組成物とを、自公転式攪拌装置(商品名「あわとり練太郎AR-250」、(株)シンキー製)を使用して均一に混合し、脱泡して硬化性エポキシ樹脂組成物を製造した。
さらに、上記で得た硬化性エポキシ樹脂組成物を成形型(厚さ4mm、3mm及び0.5mmの注型用型枠)に注型し、それぞれ樹脂硬化オーブンに入れて表1に示す硬化条件[100℃で2時間、続いて、150℃で4時間]で加熱することによって硬化させ、硬化物を製造した。
[硬化性エポキシ樹脂組成物及びその硬化物の製造]
エポキシ化合物の種類及び量、硬化剤組成物の組成、並びに硬化条件を表1に示すように変更したこと以外は実施例1と同様にして、硬化性エポキシ樹脂組成物及びその硬化物を製造した。
実施例及び比較例で得られた硬化性エポキシ樹脂組成物及びその硬化物について、以下の評価試験を実施した。
実施例及び比較例で得られた硬化性エポキシ樹脂組成物の25℃における粘度は、デジタル粘度計(型番「DVU-EII型」、(株)トキメック製)を用いて、ローター:標準1°34′×R24、温度:25℃、回転数:0.5~10rpmの条件で測定した。
実施例及び比較例で得られた硬化性エポキシ樹脂組成物を50℃で4時間加熱した後の25℃における粘度を、デジタル粘度計(型番「DVU-EII型」、(株)トキメック製)を用いて、ローター:標準1°34′×R24、温度:25℃、回転数:0.5~10rpmの条件で測定した。
なお、加熱前の粘度と加熱後の粘度とを比較して、加熱による粘度の上昇幅が小さいほど、ポットライフが長いことを意味する。
実施例及び比較例で得られた硬化性エポキシ樹脂組成物を、ゲルタイムテスター((株)安田精機製作所製)を用いて、ローター:直径φ5×110mm、試験管:外径φ12×90mm、オイル:SRX310(表1に示す所定の温度(150℃)に加温)の条件で測定し、サンプルがゲル化した時間(増粘によりローターを固定しているマグネットが外れた時間)をゲルタイムとした。
実施例及び比較例で得られた硬化物のガラス転移温度(Tg(TMA))は、TMA測定装置(エスアイアイ・ナノテクノロジー社製「TMA/SS100」)を使用し、JIS K7197に準拠した方法により、窒素雰囲気下にて、昇温速度5℃/分で、測定温度範囲30~250℃における熱膨張率を測定した後、ガラス転移点の前及び後の曲線に接線を引き、これら接線の交点から求めた。また、実施例及び比較例で得られた硬化物の線膨張係数は、上記で求めたガラス転移温度より低温側の直線の勾配をα1、ガラス転移点より高温側の直線の勾配をα2として求めた。
実施例及び比較例で得られた硬化物(厚さ0.5mm)より、厚さ0.5mm×幅8mm×長さ40mmのサイズの試験片を切り出し、動的粘弾性測定装置(DMA)(セイコーインスツルメント(株)製)を用いて、上記試験片の損失正接(tanδ)のピークトップ温度(Tg(DMA-tanδ))及び貯蔵弾性率(E')のガラス転移のオンセット温度(Tg(DMA-E'))を測定した。なお、測定は、窒素気流下、測定温度範囲:-50~300℃、昇温温度:3℃/分、変形モード:引張モードの条件で実施した。
厚さ4mm×幅10mm×長さ80mmの硬化物(実施例及び比較例で得られた硬化物)をサンプルとし、テンシロン万能試験機((株)オリエンテック製)を使用して、エッジスパン:67mm、曲げ速度2mm/分の条件で、3点曲げ試験を行うことにより、硬化物の曲げ強度、曲げ弾性率、及び曲げ伸度を測定した。
実施例及び比較例で得られた硬化物(厚さ3mm)の波長400nmの光の透過率(透過率(400nm)[150℃×0h])を、分光光度計(商品名「UV-2450」、(株)島津製作所製)を使用して測定した。
次いで、上記硬化物を150℃で加熱し、加熱開始から24時間後における波長400nmの光の透過率(透過率(400nm)[150℃×24h])と、加熱開始から50時間後における波長400nmの光の透過率(透過率(400nm)[150℃×50h])とを、上記と同様にして測定した。
実施例及び比較例で得られた硬化物(厚さ3mm)を50℃、24時間の条件で乾燥後、デシケータ(シリカゲル入)内で冷却してブランクの重量(M1)を測定した。その後、23℃、24時間の条件で水中に静置し、取り出した後、ガーゼでふき取り、1分以内に重量を測定して、これを吸水後の重量(M2)とした。そして、下記式により吸水率を測定した。
吸水率(%)={(M2-M1)/M1}×100
(エポキシ化合物)
セロキサイド2021P:商品名「セロキサイド2021P」[3,4-エポキシシクロヘキシルメチル(3,4-エポキシ)シクロヘキサンカルボキシレート、(株)ダイセル製]
EHPE3150:商品名「EHPE3150」[2,2-ビス(ヒドロキシメチル)-1-ブタノールの1,2-エポキシ-4-(2-オキシラニル)シクロヘキセン付加物(Mw:約2000)、(株)ダイセル製]
YD-128:商品名「YD-128」[ビスフェノールA型エポキシ樹脂、新日鐵化学(株)製]
(硬化剤)
リカシッドMH-700F:商品名「リカシッド MH-700F」[4-メチルヘキサヒドロ無水フタル酸/ヘキサヒドロ無水フタル酸=70/30、新日本理化(株)製]
(硬化促進剤)
U-CAT 12XD:商品名「U-CAT 12XD」[サンアプロ(株)製]
(希釈剤)
EG:商品名「エチレングリコール」[和光純薬工業(株)製]
Claims (3)
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KR1020157034722A KR20160006199A (ko) | 2013-05-10 | 2014-04-24 | 경화성 에폭시 수지 조성물 및 그의 경화물 |
EP14795309.5A EP2995633A4 (en) | 2013-05-10 | 2014-04-24 | HARDENABLE EPOXY RESIN COMPOSITION AND HARDENING PRODUCT THEREOF |
US14/889,989 US20160137779A1 (en) | 2013-05-10 | 2014-04-24 | Curable epoxy resin composition and cured product thereof |
JP2015515842A JPWO2014181699A1 (ja) | 2013-05-10 | 2014-04-24 | 硬化性エポキシ樹脂組成物及びその硬化物 |
CN201480038765.2A CN105377938A (zh) | 2013-05-10 | 2014-04-24 | 固化性环氧树脂组合物及其固化物 |
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JP2018065802A (ja) * | 2016-10-18 | 2018-04-26 | エスケー イノベーション カンパニー リミテッドSk Innovation Co.,Ltd. | ジエポキシド化合物の製造方法 |
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JP2012001690A (ja) * | 2010-06-21 | 2012-01-05 | Adeka Corp | 光硬化性樹脂組成物 |
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- 2014-04-24 JP JP2015515842A patent/JPWO2014181699A1/ja active Pending
- 2014-04-24 WO PCT/JP2014/061601 patent/WO2014181699A1/ja active Application Filing
- 2014-04-24 US US14/889,989 patent/US20160137779A1/en not_active Abandoned
- 2014-04-24 CN CN201480038765.2A patent/CN105377938A/zh active Pending
- 2014-04-24 EP EP14795309.5A patent/EP2995633A4/en not_active Withdrawn
- 2014-04-24 KR KR1020157034722A patent/KR20160006199A/ko not_active Application Discontinuation
- 2014-05-08 TW TW103116336A patent/TW201502191A/zh unknown
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EP2995633A1 (en) | 2016-03-16 |
CN105377938A (zh) | 2016-03-02 |
KR20160006199A (ko) | 2016-01-18 |
EP2995633A4 (en) | 2016-10-26 |
US20160137779A1 (en) | 2016-05-19 |
TW201502191A (zh) | 2015-01-16 |
JPWO2014181699A1 (ja) | 2017-02-23 |
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