WO2005035617A1 - 潜在性硬化剤および組成物 - Google Patents
潜在性硬化剤および組成物 Download PDFInfo
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- WO2005035617A1 WO2005035617A1 PCT/JP2004/014866 JP2004014866W WO2005035617A1 WO 2005035617 A1 WO2005035617 A1 WO 2005035617A1 JP 2004014866 W JP2004014866 W JP 2004014866W WO 2005035617 A1 WO2005035617 A1 WO 2005035617A1
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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
-
- 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
- C08G59/188—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 encapsulated compounds
-
- 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
- C08G59/4021—Ureas; Thioureas; Guanidines; Dicyandiamides
-
- 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
- C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
- C08G73/06—Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
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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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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/20—Conductive material dispersed in non-conductive organic material
- H01B1/22—Conductive material dispersed in non-conductive organic material the conductive material comprising metals or alloys
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
- H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
- H05K3/321—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by conductive adhesives
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
- H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
- H05K3/321—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by conductive adhesives
- H05K3/323—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by conductive adhesives by applying an anisotropic conductive adhesive layer over an array of pads
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
- Y10T428/2991—Coated
Definitions
- the present invention relates to a novel latent curing agent for epoxy resins and a one-pack epoxy resin composition using the same. More specifically, the present invention relates to a latent curing agent for an epoxy resin composition which provides a composition having high curability and excellent storage stability, and a one-pack epoxy resin composition using the same.
- Epoxy resins have excellent properties in terms of mechanical properties, electrical properties, thermal properties, chemical resistance, adhesiveness, etc., and are therefore used as coatings and insulating materials for electric and electronic devices. Wide range of adhesives, etc.! / ⁇ Used for applications! Puru. Currently commonly used!
- the epoxy resin composition is a so-called two-part composition in which two parts of an epoxy resin and a curing agent are mixed at the time of use.
- the two-part epoxy resin composition can be cured at room temperature, but it is necessary to store the epoxy resin and the curing agent separately, measure and mix them as necessary, and then use them. Handling is complicated.
- a latent curing agent such as an amine complex, an amine salt, or a modified imidazole compound is mixed with an epoxy resin.
- the product when obtaining a film-shaped molded product or a product in which a base material is impregnated with epoxy resin, the product often contains a solvent or a reactive diluent, etc.
- a hardener When used as a hardener, the storage stability is extremely reduced, and it is necessary to use a two-part hardening agent, and its improvement has been demanded.
- JP-A-61-190521 Patent Document 1
- JP-A-170523 Patent Document 2
- JP-A-11 193344 Patent Document 3
- Patent Document 3 describes a curing agent for an epoxy resin whose surface is coated with a reaction product of an isocyanate compound.
- the one-part epoxy resin composition used as one of the connection materials is strongly required to further improve curability without impairing the storage stability. It was difficult.
- Patent Document 1 JP-A-61-190521
- Patent Document 2 Japanese Patent Application Laid-Open No. 170523/1990
- Patent Document 3 Japanese Patent Application Laid-Open No. 11 193344
- the present invention provides a one-part epoxy resin composition capable of achieving both high curability and storage stability, a latent curing agent for obtaining the same, and a low-temperature or high-temperature storage resin having high storage stability.
- the purpose of the present invention is to provide an anisotropic conductive material, a conductive adhesive material, an insulating adhesive material, a sealing material, and the like that can provide high connection reliability, adhesive strength, and high sealing properties even under short curing conditions. It shall be.
- the inventors of the present invention have conducted intensive studies to solve the above-mentioned problems, and as a result, have found that a film having a specific structure has The present inventors have found that the coated latent curing agent for epoxy resin can meet the above-mentioned object, and have accomplished the present invention.
- the present invention is as follows.
- the resin coating the epoxy resin curing agent (A) has a structure in which three nitrogen atoms are bonded at a branch point via a linear or cyclic aliphatic hydrocarbon group which may contain an ester structure (structure (1)) contains a structure linked via a ⁇ rare bond,
- the latent curing agent for epoxy resins wherein at least one of the nitrogen atoms in each structure (1) is contained in the rare bond.
- the resin coating the epoxy resin curing agent (A) further comprises an aromatic hydrocarbon group (2) bonded to two or more nitrogen atoms,
- the ratio of the aromatic hydrocarbon group (2) bonded to the two or more nitrogen atoms to the total amount of the structure (1) and the aromatic hydrocarbon group (2) bonded to the two or more nitrogen atoms is 0. 5% by mass or more and 95% by mass or less,
- the ratio of the aromatic hydrocarbon group (2) bonded to two or more nitrogen atoms to the total amount of the structure (1) and the aromatic hydrocarbon group (2) bonded to two or more nitrogen atoms is 1 mass. % Or less, and 80% by mass or less, the latent curing agent for epoxy resins according to II).
- An isocyanate component (bl) that covers the epoxy resin curing agent (A) and has at least three isocyanate groups and contains at least 20% by mass of a low molecular weight polyisocyanate having no molecular weight distribution. Resin obtained by reaction with hydrogen compound (b2)
- a latent curing agent for epoxy resins including:
- V) ⁇ covering the epoxy ⁇ curing agent (A) is the wave number 1630cm- 1 - having 1680c m- 1 binding group that absorbs infrared (X), epoxy ⁇ according to IV) Latent curing agent.
- At least one curing agent (E) selected from the group consisting of acid anhydrides, phenols, hydrazides, and guadins;
- XIV) A conductive adhesive containing the one-component epoxy resin composition according to XI) or ⁇ ).
- XV An insulating adhesive material containing the one-part epoxy resin composition according to XI) or ⁇ )
- the curing agent for epoxy resin ( ⁇ ) is active with an isocyanate component (bl) containing at least 20% by mass of a low molecular weight polyisocyanate conjugate having at least three isocyanate groups and no molecular weight distribution.
- a method for producing a latent curing agent for epoxy resin comprising reacting a hydrogen compound (b2) to form a film and coating the film.
- the curing agent of the present invention is effective in achieving both high curability and storage stability.
- the latent curing agent for epoxy resin of the present invention has a branch point at least three nitrogen atoms contained in a rare bond via a linear or cyclic aliphatic hydrocarbon group which may contain an ester structure.
- the structure (1) is characterized by being covered with a resin containing a structure directly connected to the same urea structure by sharing two nitrogen atoms.
- the nitrogen atom contained in the rare earth bond is also included in the molecular chain from the urea bond to the branch point in a linear or cyclic aliphatic hydrocarbon group which may have an ester structure up to the branch point.
- the number of carbon atoms is preferably 120, including the atoms serving as branch points. If the number of carbon atoms is larger than 20, storage stability may not be sufficiently exhibited! In some cases, the preferable number of carbon atoms is 110, more preferably 117.
- the total number of carbon atoms in the molecular chain from the branch point to a nitrogen atom different from the nitrogen atom contained in the urea bond is 120, including the atoms serving as the branch points. U, which is preferred. If the number of carbon atoms is larger than 20, the storage stability may not be sufficiently exhibited! In some cases, the preferable number of carbon atoms is 110, more preferably 117.
- the total number of carbon atoms up to the atom serving as a branch point of the urea bond and the number of carbon atoms up to a nitrogen atom different from the urea bond is 3 to 20.
- the sum of the carbon number If the total is less than 3, the obtained latent curing agent for epoxy resin may have low reactivity, and if it is more than 20, the storage stability may not be sufficiently exhibited, and such a viewpoint is also preferred. It is desirable that the total number of carbon atoms be 4 to 20, more preferably 5 to 10.
- three nitrogen atoms starting from the two nitrogen atoms contained therein may each have a linear or cyclic structure which may have an ester structure. It has a structure (1) linked at a branch point via an aliphatic hydrocarbon group.
- the present invention has a structure (1) in which three nitrogen atoms are bonded at a branch point via a linear or cyclic aliphatic hydrocarbon group which may contain an ester structure. It is preferable that the number of ester bonds contained in the intervening molecular chain is 0 to 5. If the number is 5 or more, storage stability may not be sufficiently exhibited, and such a viewpoint is more preferable.
- the number of esters is 0 to 2, and particularly preferably 0.
- the latent curing agent for epoxy resin of the present invention is characterized in that at least one nitrogen atom contained in the rare bond is branched via a linear or cyclic aliphatic hydrocarbon group which may contain an ester structure.
- the point-bonded structure (1) is directly connected to the same urea structure by sharing two nitrogen atoms, and is covered with a resin containing a urea structure.
- nitrogen atoms other than those that form a urea bond are selected from urethane bonds and biuret bonds, and if they form any bond, simultaneously exhibiting curability and storage stability, the viewpoint is also favorable. ,.
- those other than those forming a urea bond form a urethane bond or a piuret bond force.
- an active hydrogen compound (b2) described later Through a bond to a structure derived from structure (1), structure (2), or an active hydrogen compound (b2) described later.
- the urea bond strength is determined by connecting one nitrogen atom through one tertiary carbon as a branching point and five methylene chains in order from an element adjacent via five methylene chains. Is a structure in which another nitrogen atom is bonded to another nitrogen atom, and another nitrogen atom is directly bonded to the tertiary carbon as a branch point;
- Urea bonding force Adjacent element force via 4 methylene chains 1 branch point in order Is bonded to another nitrogen atom through the three tertiary carbons and three methylene chains, and another nitrogen atom from the tertiary carbon, which is the branch point, through one methylene group. Bonded structure;
- Urea bonding force Adjacent element force via three methylene chains
- one tertiary carbon which is a branch point
- One tertiary carbon, which is a branch point in order a COO bond A structure in which one nitrogen atom is bonded to another nitrogen atom via one propylene group, and another nitrogen atom is directly bonded to the nitrogen atom from tertiary carbon as a branch point;
- Urea bonding force Adjacent element force via a cyclohexyl ring
- One tertiary carbon which in turn is a branch point, is bonded to a different nitrogen atom from the nitrogen atom via a cyclohexyl ring to form a branch point 3
- Urea bonding force Adjacent element force via four methylene chains In order, via one tertiary carbon, COO bond, and two methylene groups, which are branch points, it is bonded to a nitrogen atom different from the nitrogen atom concerned, Tertiary carbon power as a branch point Structure in which another nitrogen atom is directly bonded to the nitrogen atom concerned;
- Urea bonding force Adjacent element force via four methylene chains One tertiary carbon, which is a branch point in order, and another nitrogen atom via the three methylene chains, which is different from the nitrogen atom concerned
- Urea bonding force Adjacent element force via four methylene chains
- tertiary carbon, COO bond, and two methylene groups, which are branch points it is bonded to a nitrogen atom different from the nitrogen atom concerned, Tertiary carbon power as a branch point Structure in which another nitrogen atom is directly bonded to the nitrogen atom concerned; It is more preferable from the viewpoint of storage stability and curability of the liquid epoxy resin composition.
- the latent curing agent for epoxy resin of the present invention comprises a linear or cyclic aliphatic hydrocarbon in which at least one of three nitrogen atoms contained in a rare bond may have an ester structure. It is characterized by including a structure (1) linked at a branch point via a group, but may further include an aromatic hydrocarbon group (2) linked to two or more nitrogen atoms.
- Two or more aromatic hydrocarbon groups (2) bonded to two or more nitrogen atoms are ortho to the methyl group bonded to the benzene ring, one each at the ortho and meta positions, and two at the meta position.
- the ratio of the aromatic hydrocarbon group (2) to the total amount of the structure (1) and the aromatic hydrocarbon group (2) bonded to two or more nitrogen atoms is 0.5% by mass or less, epoxy
- the storage stability of the masterbatch obtained when the resin is mixed may decrease, and if it is more than 95% by mass, the effect of the present invention may not be exhibited.
- the preferable ratio of the aromatic hydrocarbon group (2) to the total amount of the structures (1) and (2) is 0.5% by mass or more and 95% by mass or less, more preferably 1% by mass or less. It is at least 80% by mass and more preferably at least 5% by mass and at most 70% by mass.
- the latent curing agent for epoxy resin is coated! It is desirable that the main component of the urethane resin is urethane resin.
- Such a urethane resin can be synthesized by reacting an isocyanate conjugate with a compound having one or more hydroxyl groups in one molecule.
- isocyanate conjugate examples include aliphatic diisocyanates, alicyclic diisocyanates, aromatic diisocyanates, aliphatic triisocyanates, and polyisocyanates.
- aliphatic diisocyanate examples include ethylene diisocyanate, propylene diisocyanate, butylene diisocyanate, hexamethylene diisocyanate, and trimethylhexamethylene diisocyanate.
- alicyclic diisocyanates examples include isophorone diisocyanate, 44, dicyclohexyl methane diisocyanate, norbornane diisocyanate, 1,4 isocyanatocyclohexane, 1,3-bis (isocyanate Methyl) -cyclohexane, 1,3-bis (2-isocyanatopropyl-2-yl) -cyclohexane and the like can be mentioned.
- aromatic diisocyanate examples include tolylene diisocyanate, 4,4, diphenylmethane diisocyanate, xylene diisocyanate, and 1,5 naphthalenediisocyanate.
- Examples of the aliphatic triisocyanate include 1,3,6-triisocyanatomethyl hexane, 2,6-diisocyanatohexanoate 2-isocyanatoethyl, and the like.
- Examples of the polyisocyanate include polymethylene polyphenyl polyisocyanate and polyisocyanate derived from the above diisocyanate conjugate.
- Examples of the polyisocyanate derived from the above diisocyanate include isocyanurate-type polyisocyanate, burette-type polyisocyanate, urethane-type polyisocyanate, allohanate-type polyisocyanate, and carbodiimide-type polyisocyanate.
- Examples of the compound having one or more hydroxyl groups in one molecule include an alcohol compound and a phenol compound.
- alcohol compounds include methyl alcohol, propyl alcohol, butyl alcohol, amino alcohol, amino alcohol, hexino alcohol, heptanol, octyl alcohol, alcohol, decyl alcohol, decyl alcohol, lauric alcohol.
- phenol compound having two or more in one molecule are also exemplified as polyhydric alcohols.
- any of primary, secondary or tertiary alcohols may be used.
- the phenol compound include monophenols such as carboxylate, cresol, xylenol, lactachlor, motyl, and naphthol, and polyphenols such as catechol, resorcin, hydroquinone, bisphenol 8, bisphenol F, pyrogallol, and phloroglucin. be able to.
- the latent curing agent for epoxy resin of the present invention is obtained, for example, by coating the curing agent for epoxy resin (A) with a film obtained by reacting the isocyanate component (bl) with the active hydrogen compound (b2).
- ⁇ isocyanate component (bl)
- b2 active hydrogen compound
- the epoxy resin curing agent (A) includes amine curing agents, acid anhydride curing agents such as phthalic anhydride, hexahydrophthalic anhydride, tetrahydrophthalic anhydride, methylnadic acid, and phenol novolak.
- acid anhydride curing agents such as phthalic anhydride, hexahydrophthalic anhydride, tetrahydrophthalic anhydride, methylnadic acid, and phenol novolak.
- Phenolic hardeners such as cresol novolak, bisphenol A novolak, propylene glycol-modified polymercaptan, thioglyconic acid ester of trimethylolpropane, mercaptan-based hardening agents such as polysulfide resin, and ethylamine salt of trifluoroborolane Quaternary ammonium-based hardeners such as phenol salts of 1,8-diazabicyclo (5,4,0) -decene 7; 3-fluoro-1,1 Urea-based curing agents such as dimethyl peryl, phosphines such as triphenylphosphine, tetraphenylphospho-dimethyltetraphenylporate Compounds such curing agent are exemplified, amine curing agents are preferable and excellent storage stability and low-temperature curability.
- Examples of the amine-based curing agent include compounds having primary, secondary and / or tertiary amino groups. These can be used in combination.
- Compounds having a primary amino group include ethylenediamine, diethylenetriamine, triethylenetetramine, tetraethylenepentamine, hexamethylenediamine, isophoronediamine, bis (4-amino-13-methylcyclohexyl) methane, Diaminodicyclohexylmethane, metaxylenediamine, diaminodiphenylmethane, diaminodiphenylsulfone, metaphen Primary amines such as direndiamine, dicyandiamide, methyl danidine, ethyl danidine, propyl guanidine, butyl danidine, dimethyl danidine, trimethyl danidine, guanidines such as fenolereganidine, diphenyl guanidine, tonoleino guanidine, succinic acid, etc.
- Acid hydrazides such as dihydrazide, adipic acid dihydrazide, phthalic acid dihydrazide, isophthalic acid dihydrazide, terephthalic acid dihydrazide, hydroxybenzoic acid hydrazide, salicylic acid hydrazide, phenylaminopropionate hydrazide, and maleic dihydrazide.
- Examples of the compound having a secondary amino group include piperidine, pyrrolidine, diphenylamine, 2-methylimidazole, 2-ethyl-4-methylimidazole, and the like.
- Examples of the compound having a tertiary amino group include the following.
- any of an aliphatic primary amine, an alicyclic primary amine and an aromatic primary amine may be used.
- the aliphatic primary amine include methylamine, ethylamine, propylamine, butanolamine, ethylenediamine, propylenediamine, hexamethylenediamine, diethylenediamine. Examples thereof include liamine, triethylenetetramine, ethanolamine, and propanolamine.
- the alicyclic primary amine include cyclohexylamine, isophoronediamin and the like.
- aromatic primary amine examples include arin, toluidine, diaminodiphenylmethane, diaminodiphenylsulfone and the like.
- the compound having at least one secondary amino group but not having a tertiary amino group any of aliphatic niamin, alicyclic secondary amine, aromatic secondary amine and the like may be used.
- the aliphatic secondary amine include dimethylamine, getylamine, dipropylamine, dibutylamine, dipentylamine, dihexylamine, dimethanolamine, diethanolamine, dipropanolamine, and the like.
- Examples of the alicyclic secondary amine include dicyclohexylamine, piperidine, piperidone and the like.
- Examples of the aromatic niamin include diphenylamine, phenylmethylamine, phenylethylamine, and the like.
- either a monoepoxy conjugate, a polyepoxy compound, or a mixture thereof is used as the epoxy conjugate used as a raw material of the reaction product (A-1).
- Monoepoxy conjugates include butyl daricidyl ether, hexyl glycidyl ether, phenyl glycidyl ether, aryl glycidyl ether, para-tert-butyl phenyl glycidyl ether, ethylene oxide, propylene oxide, para-xylyl glycidyl ether, Glycidyl acetate, glycidyl butyrate, glycidyl hexoate, glycidyl benzoate and the like can be mentioned.
- polyepoxy compound examples include, for example, bisphenol A, bisphenol F, bisphenol AD, bisphenol S, tetramethylbisphenol A, tetramethylbisphenol — tetramethylbisphenol AD, tetramethylbisphenol Bisphenol-type epoxy resins obtained by glycidylation of bisphenols such as S, tetrabromobisphenol 8, tetrachlorobisphenol A, tetrafluorobisphenol A, etc., biphenol, dihydroxynaphthalene, 9,9 bis (4-hydroxyphenol ) Epoxy resin obtained by glycidylation of other divalent phenols such as fluorene, 1, 1, 1-tris (4-hydroxyphenyl) methane, 4, 4 (1— (4— (1— ( 4-Hydroxyphenyl) -1-methylethyl) phenyl) ethylene den) bisphenol Glycidyl the Sufuenoru such epoxy ⁇ , 1, 1, Epoxy resin obtained by glycidylation of te
- Novolac epoxy resins obtained by glycidylation of novolacs epoxy resins obtained by glycidylation of polyhydric phenols, and aliphatic ether type epoxy resins obtained by glycidylation of polyhydric alcohols such as glycerin and polyethylene glycol.
- 8-hydroxyxinaphthoic acid and ester type epoxy resin obtained by glycidylation of polycarboxylic acid such as phthalic acid and terephthalic acid Fat, 4, 4-diaminodi Glycidylides of amine compounds such as ethylmethane and m-aminophenol; amine-type epoxy resins such as triglycidyl isocyanurate; 3,4 epoxycyclohexylmethyl-3 ', 4'-epoxycyclohexanecarboxy And alicyclic epoxides such as acrylate.
- hydroxycarboxylic acid such as fatty acid, hydroxybenzoic acid and
- ester type epoxy resin obtained by glycidylation of polycarboxylic acid such as phthal
- Epoxy conjugates as a raw material of the reaction product (A-1) are excellent in adhesiveness and heat resistance of the obtained cured product, and are therefore more preferably polyepoxy compounds, and more preferably polyphenols.
- Epoxy compounds usually have an impure end with chlorine bonded in the molecule.
- the total amount of chlorine in the epoxidized conjugate as a raw material of the reaction product (A-1) is preferably less than 2000 ppm because the cured product has excellent electrical properties. More preferably less than 1500 ppm, more preferably less than 100 ppm, even more preferably less than 500 ppm.
- the active hydrogen group includes a primary amino group, a secondary amino group, a hydroxyl group, a thiol group.
- Examples of the compound having at least one active hydrogen group and a tertiary amino group include, for example, 2-dimethylaminoethanol, 1-methyl-2-dimethylaminoethanol, 1-phenoxymethyl-2-dimethylaminoethanol.
- Amino alcohols such as tanol, 2-ethylaminoethanol, 1-butoxymethyl-2-dimethylaminoethanol, methyljetanolamine, triethanolamine, N-jS-hydroxyethylmorpholine , 2- (dimethylaminomethyl) phenol, aminophenols such as 2,4,6-tris (dimethylaminomethyl) phenol, 2-methylimidazole, 2-ethyl-4-methylimidazole, 2- ⁇ ⁇ ⁇ ndecyl Imidazole, 2-heptadecyl imidazole, 2-phenylimidazole, 1 aminoethyl-2-methylimidazole, 1- (2-hydroxy-3-phenoxypropyl) -2-methylimidazole, 1- (2- Hydroxy-3-phenoxypropyl) -2-ethyl-4-methylimidazole, 1- (2-hydroxy-3-butoxypropyl) Imidazoles such as 1- (2-methylimidazole), 1- (2-hydroxy-3
- reaction product (A-1) and imidazoles are preferable because they have an excellent balance between storage stability and curability.
- 2-Methylimidazole and 2-Ethyl-4-methylimidazole are more preferred for imidazoles.
- the carboxylic acid conjugate, sulfone oxide compound, isocyanate compound, urea compound and epoxy compound used as the raw material of the reaction product (A-2) are shown below.
- carboxylic acid compound examples include succinic acid, adipic acid, sebacic acid, phthalic acid, dimer acid and the like.
- sulfonic acid compound examples include ethanesulfonic acid and p-toluenesulfonic acid.
- Examples of the isocyanate conjugate include an aliphatic diisocyanate, an alicyclic diisocyanate, an aromatic diisocyanate, an aliphatic triisocyanate, and a polyisocyanate.
- Examples of the aliphatic diisocyanate include ethylene diisocyanate, propylene diisocyanate, butylene diisocyanate, hexamethylene diisocyanate, and trimethylhexamethylene diisocyanate.
- alicyclic diisocyanates examples include isophorone diisocyanate, 44, dicyclohexyl methane diisocyanate, norbornane diisocyanate, 1,4 isocyanatocyclohexane, 1,3-bis (isocyanate Methyl) -cyclohexane, 1,3-bis (2-isocyanatopropyl-2-yl) -cyclohexane and the like can be mentioned.
- aromatic diisocyanate examples include tolylene diisocyanate, 4,4, diphenylmethane diisocyanate, xylene diisocyanate, and 1,5 naphthalenediisocyanate.
- Examples of the aliphatic triisocyanate include 1,3,6-triisocyanatomethyl hexane, 2,6-diisocyanatohexanoate 2-isocyanatoethyl, and the like.
- Examples of the polyisocyanate include polymethylene polyphenyl polyisocyanate and polyisocyanate derived from the above diisocyanate conjugate.
- Examples of the polyisocyanate derived from the above diisocyanate include isocyanurate-type polyisocyanate and burette-type polyisocyanate. And polyisocyanate, urethane-type polyisocyanate, allohanate-type polyisocyanate and carbodiimide-type polyisocyanate.
- Examples of the urea compound include urea, methyl urea, dimethyl urea, ethyl urea, and t-butyl urea.
- Epoxy conjugates include the epoxide conjugates exemplified as raw materials for the reaction product (A-1).
- Epoxy conjugates are preferred because of their excellent properties such as heat resistance and heat resistance. Polyvalent epoxy conjugates are more preferred, and epoxy resins obtained by glycidylation of polyphenols are more preferable, and bisphenol-type epoxy resins are more preferable. The glycidylation of bisphenol A and the glycidylation of bisphenol F are even more preferred because of the ease of obtaining the reaction product (A-1). Glycidyl stilts of bisphenol A are particularly preferred.
- Epoxy compounds usually have an impure terminal with chlorine bonded in the molecule.
- the total amount of chlorine in the epoxidized conjugate as a raw material of the reaction product (A-2) is preferably less than 2000 ppm because of the excellent electrical properties of the cured product. More preferably less than 1500 ppm, more preferably less than 100 ppm, even more preferably less than 500 ppm.
- a compound having two or more active hydrogens in one molecule as a third component can be used in combination as a raw material.
- the compound having two or more active hydrogens in one molecule is not particularly limited, and for example, ethylenediamine, propylenediamine, hexamethylenediamine, diethylenetriamine, triethylenetetramine, ethanolamine, diamine Methanolamine, diethanolamine, dipropanolamine, metaxylenediamine, 1,3-bis (aminomethyl) cyclohexane, isophoronediamine, diaminocyclohexane, phenylenediamine, tonoleylenediamine, Amines such as diaminodiphenylmethane, diaminodiphenylsulfone, and piperazine; bisphenol A, bisphenol F, bisphenol S, hydroquinone, catechol, polyvalent phenols such as resorcinol, pyrogallol, and
- a compound having one primary or secondary amino group in the molecule can be used in combination as a raw material.
- examples thereof include compounds having one primary amino group in a molecule such as methylamine, ethylamine, propylamine, butylamine, cyclohexylamine, aline, toluidine, dimethylamine, getylamine, dipropylamine, dibutylamine, dipentylamine.
- compounds having a secondary amino group such as dihexylamine, dicyclohexylamine, diphenylamine, phenylmethylamine, and phenylethylamine. These may be used in combination.
- the reaction product (A-1) and the reaction product (A-2) are, for example, raw materials in a lump! / ⁇ is divided and mixed, and if necessary, usually in the presence of a solvent. — The reaction is carried out in a temperature range of 250 ° C for 0.1 to 24 hours, and can be obtained by removing unreacted raw materials and solvent if necessary.
- the ratio of the starting materials may be a compound having at least one primary amino group in the molecule but not having a tertiary amino group, and Z or at least one secondary amino group.
- the ratio of the total of the primary amino groups and the secondary amino groups in the compound having a tertiary amino group to the epoxy group in the epoxy conjugate is within the range of 1 Z5-5Z1 in equivalent ratio. Preferably, there is.
- an active hydrogen group in a compound having at least one active hydrogen group and a tertiary amino group together with a carboxylic acid compound, a sulfonate compound, an isocyanate compound
- the ratio of the carboxylic acid, the sulfonic acid, the isocyanate group, the urea group and the epoxy group in the conjugate, the urea compound and the Z or epoxide conjugate is preferably in the range of 1Z5-5Z1 in equivalent ratio.
- the solvent used as necessary is not particularly limited, but examples thereof include hydrocarbons such as benzene, toluene, xylene, cyclohexane, mineral spirit, and naphtha, acetone, and methyl.
- Ketones such as ethyl ketone and methyl isobutyl ketone, esters such as ethyl acetate, n-butyl acetate, and propylene glycol monomethylethyl ether acetate, methanol, isopropanol, n-butanol, butylacetosolve
- Examples thereof include alcohols such as tyl carbitol, water, and the like, and these solvents may be used in combination.
- an amine compound having a tertiary amino group is preferable because of excellent curability and storage stability. More preferred are reaction product (A-1) and reaction product (A-2). More preferred is the reaction product (A-2), and even more preferred is the reaction product (A-2) having a tertiary amino group but not having a primary and Z or secondary amino group.
- the form of the curing agent for epoxy resin (A) may be a liquid, a lump, a granule, a powder, or the like, preferably a granule or a powder, and more preferably a powder.
- the powdery form is not particularly limited, but preferably has an average particle diameter of 0.1 to 50 / zm, more preferably 0.5 to 10 m. By setting it to 50 / zm or less, a homogeneous cured product can be obtained.
- the particle size in the present invention refers to the Stokes diameter measured by the light scattering method. The average particle size indicates the median size.
- the shape is not particularly limited, and a spherical shape or an amorphous shape is preferable, and a spherical shape is preferable for reducing the viscosity of the masterbatch or the one-component epoxy resin composition.
- the spherical shape includes not only a true sphere but also an irregular shape having rounded corners.
- 20 mass% or more of the isocyanate component (bl) used in the present invention is a low molecular weight polyisocyanate conjugate.
- the low-molecular-weight polyisocyanate conjugate is a compound having three or more isocyanate groups and no molecular weight distribution, such as 1,6,11-pinedecanetriisocyanate and 1,8-diisocyanate. 4 Isocyanate methyloctane, 1,3,6-hexamethylenetriisocyanate, 2,6-diisocyanatohexanoate 2 isocyanatoethyl, 2,6-diisocyanatohexanoate-1-methyl-2-isosia Aliphatic low-molecular-weight polyisocyanate conjugates such as triethylhexyl, etc., and aliphatic low-molecular-weight polyisocyanate conjugates such as tricyclohexynolemethane triisocyanate and bicycloheptane triisocyanate.
- low-molecular-weight polyisocyanate conjugate an aliphatic low-molecular-weight polyisocyanate conjugate is preferred because of the good balance between storage stability and curability of the obtained one-part epoxy resin composition.
- 2,6-Diisocyanatohexanoic acid 2-isocyanatoethylene is more preferred, and isocyanatoethyl natohexanoate is more preferred! / ,.
- No molecular weight distribution means that the GPC measured by the method described in the examples contains 70% or more of the peak of the main component.
- a low molecule means one having a number average molecular weight of 2000 or less determined by GPC measured by the method described in Examples.
- isocyanate component (bl) other isocyanate conjugates can be used in addition to the low molecular weight polyisocyanate conjugate.
- isocyanate conjugates include aliphatic diisocyanates, alicyclic diisocyanates, aromatic diisocyanates, and polyisocyanates.
- examples of the aliphatic diisocyanate include ethylene diisocyanate, propylene diisocyanate, butylene diisocyanate, hexamethylene diisocyanate, and trimethylhexamethylene diisocyanate. Can be.
- alicyclic diisocyanates examples include isophorone diisocyanate, 44, dicyclohexyl methane diisocyanate, norbornane diisocyanate, 1,4 isocyanatocyclohexane, 1,3 bis (isocyanatomethyl ) -Cyclohexane, 1,3-bis (2-isocyanatopropyl 2-yl) -cyclohexane and the like.
- aromatic diisocyanates examples include tolylene diisocyanate, 4,4, diphenylmethane diisocyanate, xylene diisocyanate, and 1,5 naphthalenediisocyanate.
- polyisocyanate examples include polymeric isocyanates such as polymethylene polyphenyl polyisocyanate, diisocyanates described above, and polyisocyanates derived from low molecular weight polyisocyanate compounds.
- polyisocyanate derived from the diisocyanate or the low molecular weight polyisocyanate conjugate examples include an isocyanurate-type polyisocyanate, a burette-type polyisocyanate, a urethane-type polyisocyanate, and an alohanate-type polyisocyanate. Examples include isocyanates and carbodiimide-type polyisocyanates.
- the latent curing agent of the present invention is mixed with the one-part epoxy resin composition by using other isocyanate conjugates together! ⁇ can improve the dispersibility of the master batch type curing agent when it is manufactured, and can suppress secondary aggregation of the latent curing agent.
- other isocyanate conjugates polymethylene polyphenyl polyisocyanate is more preferable, in which aromatic diisocyanate, alicyclic diisocyanate and polymeric isocyanate are preferable.
- the amount of the low molecular weight polyisocyanate conjugate in the isocyanate component (bl) must be 20% by mass or more in order to have excellent storage stability and curability. It is preferably at least 20% by mass and less than 99% by mass, more preferably at least 30% by mass and less than 95% by mass, more preferably at least 40% by mass and less than 90% by mass.
- the active hydrogen compound (b2) used in the present invention includes water, a compound having one or more primary and Z or secondary amino groups in one molecule, and one or more hydroxyl groups in one molecule. Compounds having the same are exemplified. Water and compounds having one or more hydroxyl groups in one molecule are preferred. These can be used in combination.
- aliphatic amines examples include alkylamines such as methylamine, ethylamine, propylamine, butylamine, and dibutylamine; anolexylenediamines such as ethylenediamine, propylenediamine, butylenediamine, and hexamethylenediamine; and ethylenediamine and triethylene.
- Examples thereof include polyalkylenepolyamines such as tetramine and tetraethylenepentamine; and polyoxyalkylenepolyamines such as polyoxypropylenediamine and polyoxyethylenediamine.
- Examples of alicyclic amines include cyclopropylamine, cyclobutylamine, cyclopentylamine, cyclohexylamine, isophorondiamine and the like.
- Examples of the aromatic amine include arin, toluidine, benzylamine, naphthylamine, diaminodiphenylmethane, diaminodiphenylsulfone, and the like.
- Examples of the compound having one or more hydroxyl groups in one molecule used as the active hydrogen compound (b2) include an alcohol compound and a phenol compound.
- Examples of the alcohol compound include methyl alcohol, propyl alcohol, butyl alcohol, amyl alcohol, hexinoleanorecole, heptinoleanorecoleno, otatinorenorecolenole, noninoleanolecole, decyl alcohol, pendecyl alcohol, lauryl Alcohol, dotesylua Noreconore, stealinoreanoreconore, eicosinoreanoreconore, arinoreanoreconore, crotinoreanoreconore, propanoreginorenoreconore, cyclopentanolecone, cyclohexanore, benzyl alcohol, cinnamyl alcohol, Monoalcohols such as ethylene glycol monomethyl ether, ethylene
- secondary compounds obtained by reacting a compound having one or more epoxy groups in one molecule with a compound having one or more hydroxyl groups, carboxyl groups, primary or secondary amino groups, and mercapto groups in one molecule.
- Compounds having two or more hydroxyl groups in one molecule are also exemplified as polyvalent alcohols. In these alcoholic conjugates, any of the primary, secondary, or tertiary alcohols may be used.
- phenolic compound examples include monophenols such as carboxylate, cresol, xylenol, levulinol, motil and naphthol, and polyvalent phenols such as catecholole, resorcinol, hydroquinone, bisphenole A, bisphenole A, pyrogallol, and fluorogallsine. Can be.
- monophenols such as carboxylate, cresol, xylenol, levulinol, motil and naphthol
- polyvalent phenols such as catecholole, resorcinol, hydroquinone, bisphenole A, bisphenole A, pyrogallol, and fluorogallsine.
- catecholole resorcinol
- hydroquinone bisphenole A
- bisphenole A bisphenole A
- pyrogallol pyrogallol
- fluorogallsine fluorogallsine.
- the reaction between the isocyanate component (bl) and the active hydrogen compound (b2) is usually performed in a temperature range of -10 ° C to 150 ° C for a reaction time of 10 minutes to 12 hours. If the reaction temperature is lower than 10 ° C, the progress of the reaction will be slow and it is not economical. From such a viewpoint, the preferable reaction temperature is 30 ° C to 120 ° C, more preferably 50 ° C to 100 ° C. If necessary, the reaction can be performed in a dispersion medium. Examples of the dispersion medium include a solvent, a plasticizer, and a resin.
- the solvent examples include hydrocarbons such as benzene, toluene, xylene, cyclohexane, mineral spirits and naphtha, ketones such as acetone, methyl ethyl ketone and methyl isobutyl ketone, ethyl acetate, n-butyl acetate and propylene.
- Ester such as glycol monomethyl ethyl ether acetate, methanol such as methanol, isopropanol, n -butanol, alcohol such as butylacetosolve and butyl carbitol Tools, water, and the like.
- plasticizer examples include phthalic acid diesters such as dibutyl phthalate and di (2-ethylhexyl) phthalate, aliphatic dibasic acid esters such as di (2-ethylhexyl) adipate, and tricresyl phosphate Examples thereof include phosphate triesters such as the above, and dalicol esters such as the polyethylene glycol ester.
- resin examples include silicone resins, epoxy resins, and phenol resins.
- the ratio of the amount of the isocyanate component (bl) to the amount of the active hydrogen compound (b2) is not particularly limited, but is usually the equivalent ratio of the isocyanate group in the isocyanate component (bl) to the active hydrogen in the active hydrogen compound (b2). Is used in the range of 1: 0.1-1: 1000.
- the reaction product is precipitated on the surface of the epoxy resin curing agent (A), or There may be mentioned a method in which the surface of the hardening agent for fat (A) is used as a reaction site, and a reaction product is generated there. The latter method is preferable because the reaction and the coating can be performed simultaneously.
- the resulting film preferably has a bonding group (X) that absorbs infrared rays having a wave number of 1630 cm- 1 to 1680 cm- 1 .
- a bonding group (X) a perea bond is particularly preferred.
- the resulting coating, 1680- 1725cm- 1 binding group that absorbs infrared (y), and Z or, to have a bonding group wave number absorbs infrared 1730- 1755cm- 1 (z) Preferred,.
- a urethane bond is particularly preferred as the bonding group (y).
- the urea bond and the burette bond are formed by the reaction of the isocyanate conjugate with water and Z or the amide conjugate having one or more primary and Z or secondary amino groups in one molecule. Further, the urethane bond is formed by a reaction between the isocyanate conjugate and a compound having one or more hydroxyl groups in one molecule.
- the Tg of the obtained film is preferably 20 ° C or higher and 100 ° C or lower. If the temperature is lower than 20 ° C, the stability may not be sufficiently exhibited. If the temperature is higher than 80 ° C, the curability may be reduced. From such a viewpoint, preferably 0 ° C or more and 80 ° C or less, more preferably 10 ° C or more U, which is desirably 60 ° C or lower, particularly preferably 20 ° C or higher and 50 ° C or lower.
- the latent curing agent of the present invention is preferably a core-shell type curing agent as described below, since higher storage stability can be obtained.
- the core-shell type curing agent for epoxy resin of the present invention uses the latent curing agent for epoxy resin of the present invention as a core, and uses the reaction product of the curing agent for epoxy resin (A) and the epoxy resin (C) as a core. This is a hardener.
- Examples of the epoxy resin (C) used in the present invention include bisphenol A, bisphenol F, bisphenol AD, bisphenol S, tetramethylbisphenol A, and tetramethylbisphenol.
- Bisphenol-based epoxy resin and biphenol obtained by glycidylation of bisphenols such as phenol, tetramethylbisphenol AD, tetramethylbisphenol S, tetrabromobisphenol A, tetrachlorobisphenol A, tetrafluorobisphenol A, etc.
- Epoxy resin obtained by glycidylation of other divalent phenols such as dihydroxynaphthalene, 9,9 bis (4-hydroxyphenyl) fluorene, 1,1,1-tris (4-hydroxyphenyl) methane, 4,4 — (1— (4— (1- (4-hydroxyphenyl) —1-methylethyl) phenyl) ethylidene) epoxy resin obtained by glycidylation of trisphenols such as bisphenol, 1,1,2,2-tetrakis Epoxy resins and phenols obtained by glycidylation of tetrakisphenols such as (4-hydroxyphenyl) ethane
- Novolak type epoxy resin obtained by glycidylation of novolaks such as phenolic novolak, bisphenol A novolak, brominated phenol novolak, and brominated bisphenol A novolak, and polyhydric alcohol such as glycerin and polyethylene render glycols.
- Glycidinolate is an etherified epoxy resin obtained by glycidylation of a hydroxycarboxylic acid such as aliphatic ether type epoxy resin, hydroxybenzoic acid, or j8-oxynaphthoic acid, and a polycarboxylic acid such as phthalic acid and terephthalic acid.
- a hydroxycarboxylic acid such as aliphatic ether type epoxy resin, hydroxybenzoic acid, or j8-oxynaphthoic acid
- a polycarboxylic acid such as phthalic acid and terephthalic acid.
- Esthenole type epoxy resin such as glycidylated compound of amine compound such as 4,4-diaminodipheninolemethane or m-aminophenol / triglycidyl isocyanurate, 3,4-epoxycyclo Shirumechiru 3 ', alicyclic Epokisaido such as hexane carboxylate to 4'-epoxy cyclo are exemplified.
- epoxy resins may be used alone or in combination.
- the epoxy resin (C) is multivalent because the cured product obtained has excellent adhesiveness and heat resistance.
- Epoxy resins obtained by glycidylation of phenols are preferable, and bisphenol-type epoxy resins are more preferable.
- Glycidylated bisphenol A and glycidylated bisphenol F are even more preferred!
- the glycidylation of bisphenol A is even more preferred! / ⁇
- Epoxy compounds usually have an impure end with chlorine bonded in the molecule.
- the total amount of chlorine in the epoxidized conjugate as a raw material of the reaction product (A-1) is preferably less than 2000 ppm because the cured product has excellent electrical properties. More preferably less than 1500 ppm, more preferably less than 100 ppm, even more preferably less than 500 ppm.
- the reaction between the epoxy resin curing agent (A) and the epoxy resin (C) is usually carried out in a temperature range of -10 ° C to 150 ° C, preferably 0 ° C to 100 ° C, for 1 to 168 hours, The reaction is preferably performed for a reaction time of 2 hours to 72 hours, and may be performed in a dispersion medium.
- the dispersion medium include a solvent and a plasticizer.
- the solvent examples include hydrocarbons such as benzene, toluene, xylene, cyclohexane, mineral spirits, and naphtha; ketones such as acetone, methyl ethyl ketone and methyl isobutyl ketone; ethyl acetate; n-butyl acetate; Examples thereof include esters such as propylene glycol monomethylethyl ether acetate, alcohols such as methanol, isopropanol, n-butanol, butyl sorbitol and butyl carbitol, and water.
- hydrocarbons such as benzene, toluene, xylene, cyclohexane, mineral spirits, and naphtha
- ketones such as acetone, methyl ethyl ketone and methyl isobutyl ketone
- ethyl acetate examples thereof include esters such as propylene glycol monomethyleth
- plasticizer examples include phthalic acid esters such as dibutyl phthalate and di (2-ethylhexyl) phthalate, aliphatic dibasic acid esters such as di (2-ethylhexyl) adipate, and phosphoric acid Examples thereof include phosphate triesters such as tricresyl and glycol ester such as polyethylene glycol ester.
- the amount ratio when the epoxy resin curing agent (A) is reacted with the epoxy resin (C) is not particularly limited, but is usually in the range of 1: 0.001 to 1: 1000 by mass ratio, preferably. Is used in the range of 1: 0.01-1: 1 00.
- a shell made of a reaction product of the epoxy resin curing agent (A) and the epoxy resin (C) (hereinafter referred to as the present shell), and a core made of the latent curing agent of the present invention (hereinafter, this core)
- the shell is dissolved, the solubility of the shell is lowered in a dispersion medium in which the core is dispersed, and the core is precipitated on the surface of the core.
- Fat (C) And Z or the epoxy resin (c) is dispersed in a dispersing medium, and then the epoxy resin curing agent (A) is reacted with the epoxy resin (C) to deposit the shell on the surface of the core.
- a method in which the surface of the core is used as a reaction site to form the shell there. The latter method is preferable because the reaction and coating can be performed simultaneously.
- the epoxy resin curing agent (A) may use the epoxy resin curing agent (A) in the present core! /, Or may be added separately. What! / ,.
- the thickness of the shell covering the surface of the core is preferably 5-100 Onm in average layer thickness. Storage stability is obtained above 5 nm, and practical curability is obtained below 100 nm. The thickness of the layer mentioned here is observed with a transmission electron microscope. A particularly preferred shell thickness is 10-100 nm in average layer thickness.
- the masterbatch type curing agent for epoxy resin of the present invention is used in an amount of 10 to 50,000 parts by mass (preferably 20 parts by mass) based on 100 parts by mass of the latent curing agent and the Z or core-shell type curing agent of the present invention. — 20,000 parts by mass) of epoxy resin (C).
- a master notch type curing agent that is easy to handle can be obtained when the epoxy resin (C) is at least 10 parts by mass, and when it is at or below 50,000 parts by mass, it will substantially exhibit its performance as a curing agent.
- the latent curing agent and Z or core-shell type curing agent of the present invention prepared above are used, for example, by using a three roll.
- the method of dispersing in the epoxy resin (C) and the formation reaction of the latent curing agent and Z or the core-shell type curing agent in the epoxy resin (C) are performed. Or a method of obtaining a master batch type curing agent at the same time as obtaining a core-shell type curing agent. The latter is preferred because of its high productivity.
- the master batch type curing agent of the present invention is preferably liquid or paste at room temperature. More preferably, the viscosity at 25 ° C is 500,000 mPa's or less, more preferably, 1000 to 300,000 mPa's, and still more preferably, 3000 to 200,000 mPa's.
- the masterbatch type curing agent of the present invention is composed of the latent curing agent of the present invention, z or a core-shell type curing agent, and an epoxy resin (c). Components can be included. The content of other components is preferably less than 30% by weight.
- the latent curing agent of the present invention By mixing the latent curing agent of the present invention, the core-shell type curing agent and / or the master batch type curing agent (hereinafter referred to as the present curing agent) with the epoxy resin (D), a one-part epoxy resin is obtained. A fat composition is obtained.
- the epoxy resin (D) used in the one-part epoxy resin composition of the present invention may be any one having an average of two or more epoxy groups per molecule.
- the epoxy resin (D) used in the present invention is a high-molecular-weight epoxy resin, and includes a resin generally referred to as a phenolic resin having a self-film-forming property.
- the mixing ratio of the curing agent and the epoxy resin (D) is determined from the viewpoint of curability and the properties of the cured product.
- the mixing ratio is 100 parts by mass of the epoxy resin (D).
- 0.1 part by mass of agent 0.1 may be used. More preferably, it is 0.2 to 500 parts by mass, and still more preferably 0.5 to 200 parts by mass. 0.1 parts by mass or more can provide practically satisfactory curing performance, and 1000 parts by mass or less achieves a good curing performance without uneven distribution of latent curing agent and / or core-shell type curing agent. To provide a curing agent.
- the one-part epoxy resin composition of the present invention may further contain a curing agent ( ⁇ ) in addition to the masterbatch type curing agent of the present invention.
- the curing agent ( ⁇ ) is selected from the group consisting of acid anhydrides, phenols, hydrazides and guanidines. A plurality can be used in combination.
- Examples of the acid anhydrides include phthalic anhydride, trimellitic anhydride, pyromellitic anhydride, hexahydrophthalic anhydride, tetrahydrophthalic anhydride, 3-chlorophthalic anhydride, 4-chlorophthalic anhydride, and benzozoic anhydride.
- Examples of phenols such as enonetetracarboxylic acid, succinic anhydride, methyl succinic anhydride, dimethyl succinic anhydride, dichlor succinic anhydride, methyl nadic acid, dodecyl succinic anhydride, chlorendectic anhydride, maleic anhydride, etc.
- hydrazines such as phenol novolak, cresol novolak, and bisphenol novolak
- succinic dihydrazide adipic dihydrazide
- phthalic dihydrazide isophthalic dihydrazide terephthalic dihydrazide
- p-hydroxybenzoic hydrazide and the like.
- Acid hydrazide, phenylaminopropionic hydrazide, maleic dihydrazide, etc., as guadins for example, dicyandiamide, methyldarzine, ethildazin, propylguanidine, butyldanidine, dimethyldanizin, trimethyldanzin, Examples include pheninoleguanidine, diphenolenoguanidine, tonoleinoreguanidine and the like.
- Preferred as curing agents (E) are guanidines and acid anhydrides. Even more preferred Or dicyandiamide, hexahydrophthalic anhydride, methyltetrahydrophthalic anhydride, or methylnadic anhydride.
- the curing agent (E) When the curing agent (E) is used, the curing agent (E) is used in an amount of 1.1 to 200 parts by mass, and the curing agent is used in an amount of 0.1 to 200 parts by mass with respect to 100 parts by mass of the epoxy resin (D). Is preferred! / ,.
- composition having excellent curability and storage stability can be provided, and a cured product having excellent heat resistance and water resistance can be obtained.
- a bulking agent a reinforcing material, a filler, conductive fine particles, a pigment, an organic solvent, a reactive diluent, a non-reactive diluent may be used.
- Agents, resins, coupling agents and the like can be added.
- fillers include coal tar, glass fiber, asbestos fiber, boron fiber, carbon fiber, cellulose, polyethylene powder, polypropylene powder, quartz powder, mineral silicate, mica, asbestos powder, Slate powder, kaolin, aluminum oxide trihydrate, aluminum hydroxide aluminum hydroxide, chalk powder, gypsum, calcium carbonate, antimony trioxide, penton, silica, aerosol, litho-bon, barite, titanium dioxide, carbon Examples thereof include black, graphite, iron oxide, gold, aluminum powder, iron powder, and the like, all of which are effectively used depending on the application.
- organic solvent examples include toluene, xylene, methyl ethyl ketone, methyl isobutyl ketone, ethyl acetate, butyl acetate and the like.
- Reactive diluents include, for example, butyldaricidyl ether, N ,, '-glycidyl o-toluidine, phenol glycidyl ether, styrene oxide, ethylene glycol diglycidyl ether, propylene glycol diglycidyl ether, 1,6 —Hexanediol diglycidyl ether and the like.
- non-reactive diluent examples include octyl phthalate, dibutyl phthalate, octyl adipate, and petroleum solvents.
- resin examples include denaturation of polyester resin, polyurethane resin, acrylic resin, polyether resin, melamine resin, urethane-modified epoxy resin, rubber-modified epoxy resin, alkyd-modified epoxy resin, and the like. Epoxy resin.
- the one-part epoxy resin composition of the present invention contains the present curing agent, epoxy resin (D) and, if necessary, curing agent ( ⁇ ) as main components.
- the one-part epoxy resin composition of the present invention exhibits desired performance by being cured by heating.
- examples of components not involved in curing include extenders, reinforcing materials, fillers, conductive particles, pigments, organic solvents, resins, and the like. Is preferably used in the range of 0 to 90% by mass based on the whole one-part epoxy resin composition.
- the one-part epoxy resin composition of the present invention is useful as an adhesive, a sealing material, a filling material, an insulating material, a conductive material, an anisotropic conductive material, a sealing material, a pre-preda and the like.
- an adhesive it is useful as a liquid adhesive, a film adhesive, a die bonding material and the like.
- a sealing material it is useful as a solid sealing material—a liquid sealing material, a film-shaped sealing material, and the like.
- As a liquid sealing material it is useful as an underfill material, a potting material, a dam material, and the like.
- Insulating material insulating adhesive film, insulating adhesive paste, solder resist, etc .
- conductive material conductive film, conductive paste etc .
- anisotropic conductive material anisotropic conductive film, anisotropic conductive film It is useful as a paste or the like.
- the one-part epoxy resin composition of the present invention is used by dispersing conductive particles.
- the conductive particles include metal particles such as solder particles, nickel particles, gradient particles of copper and silver, and, for example, styrene resin, urethane resin, melamine resin, epoxy resin, acrylic resin, phenol resin, styrene resin. Particles obtained by coating resin particles such as butadiene resin with a conductive thin film such as gold, nickel, silver, copper, and solder are used.
- conductive particles are spherical particles of about 120 m in diameter.
- a method of mixing a solvent with the one-part epoxy resin composition and, for example, drying the solvent after coating on a base material such as polyester, polyethylene, polyimide, polytetrafluoroethylene, or the like may be used. is there.
- a filler such as silica is added as a filler to the one-part composition of the present invention.
- a filler such as silica is added as a filler to the one-part composition of the present invention.
- a solvent is mixed with the one-component epoxy resin composition, and the solvent is dried after coating on a base material such as polyester.
- Toluene was mixed with the master batch type curing agent so that the nonvolatile content became 90%, and the mixture was allowed to stand at 25 ° C for 1 hour. This was applied on a glass plate at a film thickness of 20, the number of cissing of the coating film by the aggregate was counted, and the dispersibility was evaluated by the number of cissing of the coating film by the aggregate.
- the rating was ⁇ , when 11 to 30 was ⁇ , when 31 to 50 was ⁇ , and when more than 50 was X.
- a one-part epoxy resin composition was mixed with a mixed solvent of ethyl acetate / toluene in a ratio of 1/1 so that the nonvolatile content became 70%, and the mixture was allowed to stand at 25 ° C. for 1 hour. This was coated on an aluminum plate so as to have a dry film thickness of 30, dried by heating at 70 ° C for 5 minutes to remove the solvent in the composition, and stored at 50 ° C for 3 days. FT-IR measurement was performed before and after storage at 50 ° C for 3 days, and the residual ratio of epoxy groups was calculated.
- the gel time of the one-part epoxy resin composition is measured, and when the temperature at which the gel time is less than 30 minutes is 100 ° C or less, ⁇ , when the temperature exceeds 100 ° C and 110 ° C or less, ⁇ , 110 ° X exceeded C.
- the measurement was performed under the following measurement conditions, and a standard curve was prepared using polystyrene having a molecular weight of 580, 1060, 1940, 5000, 10050, 21000, or 50400 as a standard substance, and quantification was performed.
- the one-part epoxy resin composition was stored at 40 ° C. for 7 days, and the rate of increase in viscosity before and after storage was measured with a B-type viscometer.
- Bisphenol A type epoxy resin epoxy equivalent: 185 gZ equivalent, total chlorine content: 1200 ppm: hereinafter referred to as epoxy resin c-l
- epoxy resin c-l Bisphenol A type epoxy resin
- 0.66 mol of o-dimethylaminomethylphenol and 0.33 mol of dimethylamine was reacted in a 1Z1 mixed solvent of methanol and toluene (resin content: 50%) at 80 ° C for 8 hours, and the solvent was distilled off under reduced pressure at 180 ° C to obtain a solid compound. This was pulverized to obtain a curing agent for epoxy resin a-1 having an average particle size of 2.5 m.
- epoxy resin c-2 Two equivalents of bisphenol A type epoxy resin (epoxy equivalent: 185 gZ equivalent, total chlorine content: 20 ppm: hereinafter referred to as epoxy resin c-2), 1.5 mol of 2-methylimidazole, and 1Z1 of methanol and toluene After reacting at 80 ° C for 6 hours in a mixed solvent (resin content: 50%), the solvent was distilled off at 180 ° C under reduced pressure to obtain a solid compound. This was pulverized to obtain a curing agent for epoxy resin a-2 having an average particle size of 3 ⁇ m.
- the core-shell type curing agent obtained by separation was treated with methanol and tetrahydrofuran to separate the coated resin, and Tg was measured.
- Table 1 shows the evaluation results. 100 parts of the epoxy resin c-3 was added to 30 parts of the obtained masterbatch type hardening agent H-1 and mixed well to obtain a one-part epoxy resin composition.
- the core-shell type curing agent was separated from the master batch type curing agent H-2 using xylene, and FT-IR measurement confirmed that it had the bonding groups (x), (y) and (z).
- the dispersibility of the master batch type curing agent H-2 was evaluated. Table 1 shows the evaluation results.
- the Tg of the coating resin obtained by treating the core-shell type curing agent obtained by separation in the same manner as in Example 1 was 70 ° C.
- master notch type curing agents H-3 and H-4 were obtained in the same manner as in Example 2. All were confirmed to have the bonding groups (x), (y) and (z) in the same manner as in Example 2, and the dispersibility was evaluated.
- the Tg of the coating resin obtained by treating in the same manner as in Example 1 was 55 ° C and 58 ° C, respectively.
- Example 2 Further, a one-part epoxy resin composition was obtained in the same manner as in Example 2, and the storage stability, curability and storage stability of the master batch were evaluated. Table 1 shows the evaluation results.
- the Tg of the coating resin obtained in the same manner as in Example 1 was 92 ° C. and 98 ° C., respectively.
- Example 2 Further, a one-part epoxy resin composition was obtained in the same manner as in Example 2, and the storage stability, curability and storage stability of the master batch were evaluated. Table 1 shows the evaluation results.
- MR—200, MR—400 S-Polymer Polyethylene Polyphenylene Polyisocyanate OTI: 1,8-Diisocyanate-14-Isocyanatomethyloctane
- Bisphenol F-type epoxy resin epoxy equivalent 165 gZ equivalent, total chlorine amount 300 ppm
- methylhexahydrophthalic anhydride 80 parts by mass spherical fused silica powder (average particle size 10 ⁇ m) 300 parts by mass
- the mixture was uniformly mixed, and 6 parts by mass of the master batch-type curing agent H-2 obtained in Example 2 was added thereto and mixed uniformly to obtain a liquid sealing material.
- the obtained liquid encapsulant was sandwiched between the substrate and the LSI and heated at 100 ° C for 3 hours and then at 150 ° C for 3 hours.As a result, the liquid encapsulant hardened and was useful as an encapsulant.
- the liquid sealing material of the present composition was also useful as an insulating adhesive paste.
- the one-part epoxy resin composition using the curing agent of the present invention includes an adhesive, a sealing material, a filler, an insulating material, a conductive material, an anisotropic conductive material, a pre-preda, a film adhesive, and an anisotropic conductive material. It can be suitably used in the fields of films, anisotropic conductive pastes, insulating adhesive films, insulating adhesive pastes, underfill materials, potting materials, die bonding materials, conductive pastes, solder resists, and the like.
Abstract
Description
Claims
Priority Applications (3)
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JP2005514606A JP4463208B2 (ja) | 2003-10-10 | 2004-10-07 | 潜在性硬化剤および組成物 |
EP04792163A EP1671997A1 (en) | 2003-10-10 | 2004-10-07 | Latent curing agent and composition |
US10/574,981 US20070055039A1 (en) | 2003-10-10 | 2004-10-07 | Latent curing agent and composition |
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JP2003352693 | 2003-10-10 | ||
JP2003-352693 | 2003-10-10 |
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WO2005035617A1 true WO2005035617A1 (ja) | 2005-04-21 |
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PCT/JP2004/014866 WO2005035617A1 (ja) | 2003-10-10 | 2004-10-07 | 潜在性硬化剤および組成物 |
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US (1) | US20070055039A1 (ja) |
EP (1) | EP1671997A1 (ja) |
JP (1) | JP4463208B2 (ja) |
KR (1) | KR100902204B1 (ja) |
CN (1) | CN100584872C (ja) |
TW (1) | TWI294434B (ja) |
WO (1) | WO2005035617A1 (ja) |
Cited By (7)
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JP2006316163A (ja) * | 2005-05-12 | 2006-11-24 | Nippon Kayaku Co Ltd | 液状エポキシ樹脂、エポキシ樹脂組成物及びその硬化物 |
WO2007088889A1 (ja) * | 2006-02-03 | 2007-08-09 | Asahi Kasei Chemicals Corporation | マイクロカプセル型エポキシ樹脂用硬化剤、マスタ-バッチ型エポキシ樹脂用硬化剤組成物、一液性エポキシ樹脂組成物、および加工品 |
KR100756799B1 (ko) | 2006-07-12 | 2007-09-07 | 제일모직주식회사 | 용융점이 서로 다른 두 가지 이상의 경화제를 포함하는 이방 도전성 접착제용 조성물 |
WO2008123087A1 (ja) * | 2007-03-19 | 2008-10-16 | Namics Coropration | 異方性導電ペースト |
JP2012153814A (ja) * | 2011-01-26 | 2012-08-16 | Sumitomo Bakelite Co Ltd | エポキシ樹脂組成物 |
US8497431B2 (en) | 2006-07-21 | 2013-07-30 | Hitachi Chemical Company, Ltd. | Circuit connection material, circuit member connecting structure and method of connecting circuit member |
CN110591623A (zh) * | 2019-10-22 | 2019-12-20 | 亿铖达(深圳)新材料有限公司 | 一种快速固化环氧粘接胶 |
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KR100938523B1 (ko) * | 2005-02-23 | 2010-01-25 | 아사히 가세이 케미칼즈 가부시키가이샤 | 에폭시 수지용 잠재성 경화제 및 에폭시 수지 조성물 |
JP2007091959A (ja) * | 2005-09-30 | 2007-04-12 | Sumitomo Electric Ind Ltd | 異方導電性接着剤 |
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US8044154B2 (en) * | 2009-06-12 | 2011-10-25 | Trillion Science, Inc. | Latent hardener for epoxy compositions |
KR101695005B1 (ko) | 2010-04-01 | 2017-01-11 | 삼성전자 주식회사 | 나노결정/수지 조성물, 나노결정-수지 복합체 및 나노결정-수지 복합체의 제조방법 |
JP6955661B2 (ja) * | 2016-06-28 | 2021-10-27 | 株式会社スリーボンド | エポキシ樹脂組成物 |
US20220411679A1 (en) * | 2019-11-21 | 2022-12-29 | Swimc Llc | Two-part epoxy compositions for adherent coatings of storage articles |
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- 2004-10-07 US US10/574,981 patent/US20070055039A1/en not_active Abandoned
- 2004-10-07 JP JP2005514606A patent/JP4463208B2/ja active Active
- 2004-10-07 EP EP04792163A patent/EP1671997A1/en not_active Withdrawn
- 2004-10-07 CN CN200480029599A patent/CN100584872C/zh active Active
- 2004-10-07 WO PCT/JP2004/014866 patent/WO2005035617A1/ja active Application Filing
- 2004-10-07 KR KR1020067006798A patent/KR100902204B1/ko active IP Right Grant
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US8558118B2 (en) | 2005-05-10 | 2013-10-15 | Hitachi Chemical Company, Ltd. | Circuit connection material, circuit member connecting structure and method of connecting circuit member |
JP2006316163A (ja) * | 2005-05-12 | 2006-11-24 | Nippon Kayaku Co Ltd | 液状エポキシ樹脂、エポキシ樹脂組成物及びその硬化物 |
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CN110591623A (zh) * | 2019-10-22 | 2019-12-20 | 亿铖达(深圳)新材料有限公司 | 一种快速固化环氧粘接胶 |
CN110591623B (zh) * | 2019-10-22 | 2022-09-02 | 惠州市亿铖达精细化工有限公司 | 一种快速固化环氧粘接胶 |
Also Published As
Publication number | Publication date |
---|---|
EP1671997A1 (en) | 2006-06-21 |
TWI294434B (en) | 2008-03-11 |
CN100584872C (zh) | 2010-01-27 |
TW200528483A (en) | 2005-09-01 |
JP4463208B2 (ja) | 2010-05-19 |
CN1867602A (zh) | 2006-11-22 |
KR100902204B1 (ko) | 2009-06-11 |
KR20060085668A (ko) | 2006-07-27 |
US20070055039A1 (en) | 2007-03-08 |
JPWO2005035617A1 (ja) | 2006-12-21 |
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