WO2020262061A1 - エポキシ樹脂組成物 - Google Patents
エポキシ樹脂組成物 Download PDFInfo
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- WO2020262061A1 WO2020262061A1 PCT/JP2020/023355 JP2020023355W WO2020262061A1 WO 2020262061 A1 WO2020262061 A1 WO 2020262061A1 JP 2020023355 W JP2020023355 W JP 2020023355W WO 2020262061 A1 WO2020262061 A1 WO 2020262061A1
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- epoxy resin
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- 0 C1*2C1CCC2 Chemical compound C1*2C1CCC2 0.000 description 3
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/28—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection
- H01L23/29—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection characterised by the material, e.g. carbon
- H01L23/293—Organic, e.g. plastic
- H01L23/295—Organic, e.g. plastic containing a filler
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/20—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the epoxy compounds used
- C08G59/22—Di-epoxy compounds
- C08G59/30—Di-epoxy compounds containing atoms other than carbon, hydrogen, oxygen and nitrogen
- C08G59/306—Di-epoxy compounds containing atoms other than carbon, hydrogen, oxygen and nitrogen containing silicon
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/20—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the epoxy compounds used
- C08G59/32—Epoxy compounds containing three or more epoxy groups
- C08G59/3254—Epoxy compounds containing three or more epoxy groups containing atoms other than carbon, hydrogen, oxygen or nitrogen
- C08G59/3281—Epoxy compounds containing three or more epoxy groups containing atoms other than carbon, hydrogen, oxygen or nitrogen containing silicon
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/62—Alcohols or phenols
- C08G59/621—Phenols
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
- C08K3/013—Fillers, pigments or reinforcing additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
Definitions
- the present invention relates to an epoxy resin composition, a cured product obtained by using the epoxy resin composition, and uses of the composition.
- the epoxy resin composition is widely used in various industrial fields such as paints, adhesives, and electrical and electronic because the obtained cured product has excellent adhesion, corrosion resistance, electrical properties, and the like.
- electronic materials such as semiconductors and printed wiring boards
- they are used as encapsulants and printed circuit board materials, and with the technological innovation in these fields, the demand for higher performance is increasing. There is.
- cured products have excellent heat resistance and adhesiveness to metals used for wiring, so they are mainly bisphenol type epoxy resins or cresol novolak.
- An epoxy resin composition containing a mold epoxy resin, a phenol novolac resin, and a curing accelerator has been used.
- most of the phenol novolac resins are generally solid, and the workability may be inferior.
- the reaction between the bisphenol type epoxy resin and the phenol novolac resin gradually progresses during storage, resulting in poor storage stability.
- the cured product of the resin composition containing the bisphenol type epoxy resin and the phenol novolac resin is There was a problem that both the relative dielectric constant and the dielectric tangent were high.
- the speed and frequency of signals are increasing, and reduction of transmission loss is required. Since the transmission loss depends on the relative permittivity and dielectric loss tangent of the electronic component constituent materials, it is effective to reduce the relative permittivity and the low dielectric loss tangent. Therefore, the resin composition for the encapsulant of the semiconductor for communication equipment is particularly effective. Resin compositions for materials and printed circuit boards are strongly required to have low dielectric properties (both relative permittivity and dielectric loss tangent are low).
- Patent Document 1 proposes an epoxy resin composition in which a thiadiazole compound is added and a liquid phenol novolac resin is blended in order to improve the adhesiveness to a metal.
- a thiadiazole compound is added and a liquid phenol novolac resin is blended in order to improve the adhesiveness to a metal.
- Patent Document 2 proposes an epoxy resin composition containing hollow silica in order to reduce the relative permittivity.
- Patent Document 3 proposes an epoxy resin composition containing a liquid phenol novolac resin in which an organic acid is added to improve storage stability and workability is improved by lowering the viscosity.
- an epoxy resin composition containing a specific epoxy resin containing a silicon atom and a phenolic curing agent liquid at 25 ° C. has good workability during use and is stable in storage. It has been found that the property is high and the cured product has excellent adhesiveness and low dielectric properties. Further research was conducted based on this finding.
- Y is a bond, an alkylene group having 1 to 6 carbon atoms which may be substituted with an alkyl group having 1 to 4 carbon atoms, an oxygen atom (-O-), a sulfur atom (-S-), Indicates a divalent group represented by -SO- or -SO 2- ).
- R 1 is the same or different and represents an alkyl group having 1 to 18 carbon atoms, an alkenyl group having 2 to 9 carbon atoms, a cycloalkyl group, an aryl group or an aralkyl group, and these groups have some carbon atoms.
- R 2 are the same or different and each represents an alkylene group having 1 to 18 carbon atoms, this group is a part of carbon atoms except for the carbon atoms bonded directly to silicon atoms, selected from the group consisting of oxygen atom and a nitrogen atom May be substituted with at least one atom
- R 3 is the same or different and represents an alkyl group having 1 to 18 carbon atoms, an alkenyl group having 2 to 9 carbon atoms, a cycloalkyl group, an aryl group or an aralkyl group, and these groups have some carbon atoms.
- R 1 , R 2 , R 3 , m, and n are the same as described above.
- the saturated hydrocarbon ring is a saturated hydrocarbon ring having 4 to 8 carbon atoms.
- the unsaturated hydrocarbon ring is an unsaturated hydrocarbon ring having 4 to 8 carbon atoms.
- the epoxy resin composition according to Item 1. Item 3.
- the epoxy resin represented by the formula (1-IIa) is X ii is a 1,4-phenylene group or formula (2 g- iii'): (In the formula, Y is the same as above.), R 1 is the same or different alkyl group having 1 to 3 carbon atoms, and R 2 is the same or different group having 2 to 6 carbon atoms.
- Alkylene group (*)-(CH 2 ) 2- O-CH 2- , (*)-(CH 2 ) 3- O-CH 2- , (*)-(CH 2 ) 3- O- (CH 2 ) ) 2 -, or (*) - (CH 2) 5 -O- (CH 2) 4 - is (where (*) indicates the side bonded to the silicon atoms of R 2), an epoxy resin,
- the epoxy resin represented by the formula (1-IIb) is X ii is a 1,4-phenylene group or formula (2 g- iii'): (In the formula, Y is the same as described above), R 1 is the same or different alkyl group having 1 to 3 carbon atoms, n is both 0, and R 2 is the same or different.
- the epoxy resin represented by the formula (1-IIIa) is X iii Or Or formula (2 g- iiia'): (In the formula, Y is the same as described above), R 1 is the same or different alkyl group having 1 to 3 carbon atoms, n is both 0, and R 2 is the same or different. It is an epoxy resin which is an alkylene group having 2 to 6 carbon atoms.
- Item 3. The epoxy resin composition according to Item 3.
- the phenolic curing agent which is liquid at 25 ° C, has the formula (7).
- R 4 to R 6 represent hydrogen atoms, alkenyl groups having 2 to 9 carbon atoms, alkyl groups having 1 to 18 carbon atoms, or alkylol groups having 1 to 9 carbon atoms, which are the same or different.
- R 7 to R 8 represent hydrogen atoms or alkyl groups having 1 to 4 carbon atoms, which are the same or different, and p represents a number of 0 to 6 on average. However, all R 4 are hydrogen atoms.
- R 5 is a hydrogen atom
- all of R 6 contains at least one member selected from the group consisting of resin represented by it is not.) a hydrogen atom, claim 1-5
- Item 2. The epoxy resin composition according to any one of Items 1 to 6, further containing at least one of silica and alumina as an inorganic filler.
- Item 8. A varnish containing the epoxy resin composition according to any one of Items 1 to 7 and an organic solvent.
- Item 8. A cured product of the epoxy resin composition according to any one of Items 1 to 7.
- Item 11 For semiconductor encapsulants, encapsulants for semiconductors, liquid encapsulants, underfill materials, potting materials, sealing materials, interlayer insulating films, adhesive layers, coverlay films, electromagnetic shielding films, printed substrate materials or composite materials.
- Item 12 Manufactures semiconductor encapsulants, encapsulants for semiconductors, liquid encapsulants, underfill materials, potting materials, sealing materials, interlayer insulating films, adhesive layers, coverlay films, electromagnetic wave shielding films, printed substrate materials or composite materials. Use of the epoxy resin composition according to any one of Items 1 to 7, the varnish according to Item 8, or the cured product according to Item 9 for the purpose.
- the epoxy resin composition having good workability during use, high storage stability, and a cured product having excellent adhesiveness to a metal and low dielectric properties.
- the epoxy resin composition includes, for example, a semiconductor encapsulant, a semiconductor encapsulant, a liquid encapsulant, an underfill material, a potting material, a sealing material, an interlayer insulating film, an adhesive layer, a coverlay film, an electromagnetic wave shielding film, and the like. It can be suitably used for a printed circuit board material, a composite material, or the like.
- the epoxy resin composition included in the present invention has the formula (1):
- the epoxy resin composition may be referred to as "the epoxy resin composition of the present invention”.
- R Xa, R Xb, R Xc, and R Xd are the same or different, a hydrogen atom, a lower alkyl group, a lower alkoxy group, a lower alkenyl group, a halogen atom, or the formula (3):
- a group represented by (hereinafter, may be referred to as a "group of formula (3)").
- the lower alkyl group, the lower alkoxy group, and the lower alkenyl group may be collectively referred to as a "lower carbon substituent".
- a lower alkyl group or a lower alkoxy group is more preferable.
- R Xa, R Xb, of R Xc, and R Xd at least one of them is a group of formula (3).
- R Xa, R Xb, R Xc, and R Xd are either three of the group of 1 Exemplary ethynylphenylbiadamantane derivatives (3) a hydrogen atom or halogen atom or a lower carbon substituent, two of hydrogen atoms or halogen atoms or Two lower carbon substituents are groups of formula (3), one is a hydrogen atom or halogen atom or a lower carbon substituent and three are groups of formula (3), or all are of formula (3). It is the basis.
- R Xa, R Xb, of R Xc, and R Xd (i) R Xa , R Xb and R Xc is a hydrogen atom or halogen atom or a lower-carbon substituent group R Xd has the formula Whether it is the group of (3), (ii) RXa and RXb are hydrogen atoms or halogen atoms or lower carbon substituents, and RXc and RXd are the groups of formula (3), or (iii) R Xa.
- R Xb a hydrogen atom or halogen atom or a lower-carbon substituent group, R Xc, and either R Xd is a group of formula (3), or (iv) R Xa, R Xb , R Xc, and all R Xd Can be the basis of equation (3).
- R Xa, R Xb, R Xc, and R Xd can be identical or different. Therefore, (i) when RXa , RXb and RXc are hydrogen atoms or halogen atoms or lower carbon substituents and RXd is a group of formula (3), RXa , RXb and RXc are the same or It may be different, and if (ii) RXa and RXb are hydrogen atoms or halogen atoms or lower carbon substituents and RXc and RXd are groups of formula (3), then RXa and RXb are the same or different.
- R Xc and R Xd may be the same or different, (iii) R Xa is R Xb a hydrogen atom or halogen atom or a lower-carbon substituent group, R Xc, and R Xd is a group of formula (3) In this case, RXb , RXc , and RXd may be the same or different, and (iv) RXa , RXb , RXc , and RXd are all based on the formula (3), then RXa. , RXb , RXc , and RXd may be the same or different. In any of these cases, it is preferable that the group of the formula (3) is the same.
- R Xa, R Xb, of R Xc, and R Xd, if 2 or 3 is a halogen atom or a lower carbon substituents may be the same or different these halogen atom or a lower carbon substituent .
- R Xa, R Xb, of R Xc, and R Xd, 2 or 3 is further preferably the same lower carbon substituents.
- the lower carbon substituent means a lower alkyl group, a lower alkoxy group, or a lower alkenyl group.
- the lower grade means 1 to 6 carbon atoms (1, 2, 3, 4, 5, or 6).
- a lower alkyl group or a lower alkoxy group is preferable.
- Specific examples of the lower alkyl group include a methyl group, an ethyl group, an n-propyl group, an isopropyl group, an n-butyl group and an isobutyl group.
- the lower alkoxy group a methoxy group, an ethoxy group, a propoxy group, an isopropoxy group, a butoxy group, an isobutoxy group and the like can be preferably exemplified.
- the halogen atom is a fluorine atom, a chlorine atom, a bromine atom, or an iodine atom, preferably a fluorine atom, a chlorine atom, or a bromine atom, and more preferably a fluorine atom or a bromine atom.
- the X ring represents a saturated hydrocarbon ring or an unsaturated hydrocarbon ring, or a ring having a structure in which 2 to 6 saturated hydrocarbon rings and / or unsaturated hydrocarbon rings are fused or connected. ..
- the saturated hydrocarbon ring for example, a saturated hydrocarbon ring having 4 to 8 carbon atoms (4, 5, 6, 7, or 8) is preferable, and a cyclopentane ring, a cyclohexane ring, or the like is particularly preferable.
- the unsaturated hydrocarbon ring for example, an unsaturated hydrocarbon ring having 4 to 8 carbon atoms (4, 5, 6, 7, or 8) is preferable, and a benzene ring or the like is particularly preferable.
- a ring having a structure in which 2 to 6 saturated hydrocarbon rings and / or unsaturated hydrocarbon rings are condensed a few saturated hydrocarbon rings and / or unsaturated hydrocarbon rings are used. Alternatively, four fused rings are preferable, and two or three fused rings are more preferable.
- decahydronaphthalene ring More specifically, for example, decahydronaphthalene ring, adamantane ring, naphthalene ring, phenanthrene ring, anthracene ring, pyrene ring, triphenylene ring, tetralin ring, 1,2,3,4,5,6,7,8- Examples thereof include an octahydronaphthalene ring and a norbornene ring.
- hydrocarbon ring a saturated hydrocarbon ring or an unsaturated hydrocarbon ring, or a ring having a structure in which 2 to 6 saturated hydrocarbon rings and / or unsaturated hydrocarbon rings are condensed is collectively referred to as "hydrocarbon ring”. May be called.
- the ring represented by is preferable.
- X 1 ring and X 2 rings are the same or different and are each a saturated hydrocarbon ring or an unsaturated hydrocarbon ring. That, X 1 ring and X 2 rings, either both saturated hydrocarbon ring, either both an unsaturated hydrocarbon ring, and one of the other unsaturated hydrocarbon rings saturated hydrocarbon ring. X 1 ring and X 2 rings, either both saturated hydrocarbon ring, preferably both an unsaturated hydrocarbon ring.
- X 1 ring and X 2 rings both benzene rings
- both cyclohexane rings or one of which is the other is a cyclohexane ring, benzene ring, and more preferably both are a benzene ring.
- Y is a bond, an alkylene group having 1 to 6 carbon atoms which may be substituted with an alkyl group having 1 to 4 carbon atoms, an oxygen atom (-O-), a sulfur atom (-S-), and -SO. -Or -SO 2- indicated.
- alkylene group having 1 to 6 carbon atoms here include a methylene group, an ethylene group, a trimethylene group, a tetramethylene group, and a hexamethylene group.
- alkyl group having 1 to 4 carbon atoms as the substituent examples include a methyl group, an ethyl group, an n-propyl group, an isopropyl group, an n-butyl group and an isobutyl group.
- Preferred alkylene groups having 1 to 6 carbon atoms substituted with alkyl groups having 1 to 4 carbon atoms include -CH (CH 3 )-, -C (CH 3 ) 2- , and -CH 2 CH (CH 3 ) CH. 2- , -CH 2 C (CH 3 ) 2 CH 2-, etc. can be exemplified.
- Y is preferably a bond, an oxygen atom, a methylene group, a dimethylmethylene group, -S-, -SO 2- , and more preferably a bond, a dimethylmethylene group, an oxygen atom, -SO 2- .
- Ring represented by the formula (2) is substituted with R Xa, R Xb, R Xc , and R Xd.
- X ring in formula (1) is a formula (2), when three of R Xa ⁇ R Xd is a group of 1 Exemplary ethynylphenylbiadamantane derivatives with hydrogen or halogen atom or a lower-carbon substituent group (3), X 1 is any ring and X 2 rings may be substituted with a group of the formula (3).
- number of substituents (X 1 ring halogen atom or a lower carbon substituent : substitution number of X 2 rings) is (1: 0), (0: 1), (2: 0), (1: 1), (0: 2), (3: 0), (2: 1) , (1: 2), or (0: 3).
- R Xa ⁇ R Xd is a group of 2 Exemplary ethynylphenylbiadamantane derivatives (3) a hydrogen atom or halogen atom or a lower-carbon substituent group, X 1 ring and X 2 or a group of the two equations (3) of the ring in may be substituted, X 1 ring and X 2 rings may be substituted by one by one group of the formula (3), X 1 ring and X 2 ring group of the formula (3) one by one It is preferably replaced with.
- a halogen atom or a lower carbon substituent (X 1 number of replacements ring: X The number of substitutions of the two rings) can be (1: 0), (0: 1), (2: 0), (1: 1), or (0: 2).
- R Xa ⁇ R Xd is a group of 3 Exemplary ethynylphenylbiadamantane derivatives with hydrogen or halogen atom or a lower-carbon substituent group (3)
- X 1 ring and X 2 or a group of the three equations (3) of the ring in may be substituted, may also be X 1 ring is substituted with two X 2 rings have one group of the formula (3), X 1 ring has one X 2 rings two equations (3) may be substituted with a group, X 1 ring are two X 2 rings have one of formula (3) or is substituted by a group of X 1 ring one X 2 rings two equations (3) It is preferably substituted with a group of.
- number of substituents (X 1 ring halogen atom or a lower carbon substituent: of X 2 rings
- the number of substitutions) can be (1: 0) or (0: 1).
- R Xa ⁇ R Xd is a group of formula (3), may be substituted either X 1 ring and X 2 rings in four groups of the formula (3), X 1 ring 3 one X 2 rings may be substituted with one group of formula (3), X 1 ring may be substituted with one X 2 rings of three equations (3) group, X 1 ring There may be substituted with two X 2 rings two formulas (3) group, it is preferred that X 1 ring are two X 2 ring is substituted by two groups of formula (3).
- Equation (1') which is a group that is a part of equation (1):
- R 1 is the same or different and represents an alkyl group having 1 to 18 carbon atoms, an alkenyl group having 2 to 9 carbon atoms, a cycloalkyl group, an aryl group or an aralkyl group, and these groups are one.
- the carbon atom of the part may be replaced with at least one atom (preferably an oxygen atom) selected from the group consisting of an oxygen atom and a nitrogen atom. It is preferable that some of the carbon atoms are carbon atoms that are not directly bonded to the silicon atom. Further, some of the carbon atoms which may be substituted are one or a plurality of (for example, 2, 3, 4, 5, or 6) carbon atoms, and preferably one carbon atom. From the viewpoint of ease of synthesis and the like, it is preferable that R 1 bonded to the same silicon atom is the same. It is more preferable that all of R 1 that are present in the formula (1) are identical.
- the alkenyl group having 2 to 9 carbon atoms represented by R 1, a linear or branched alkenyl group include a vinyl group, an allyl group, a 2-propenyl group, butenyl group, pentenyl group, hexenyl group, Examples thereof include a heptenyl group, an octenyl group and a nonenyl group. It is preferably an alkenyl group having 2 to 4 carbon atoms.
- Examples of the cycloalkyl group represented by R 1 include a cycloalkyl group having a 3- to 8-membered ring, and examples thereof include a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, and a methylcyclohexyl group.
- Examples of the aryl group represented by R 1 include a monocyclic or bicyclic aryl group, and examples thereof include a phenyl group, a tolyl group, a xsilyl group, an ethylphenyl group, and a naphthyl group. Of these, a phenyl group is preferable.
- Examples of the aralkyl group represented by R 1 include an alkyl group having 1 to 4 carbon atoms substituted with an aryl group (particularly a phenyl group), and examples thereof include a benzyl group, an ⁇ -phenethyl group, a ⁇ -phenethyl group, and a ⁇ -. Examples thereof include a methylphenyl group.
- R 1 is preferably an alkyl group having 1 to 3 carbon atoms, and more preferably a methyl group.
- R 2 has 1 to 18 carbon atoms (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 17). Or it shows the alkylene group of 18).
- the alkylene group is a linear or branched alkylene group, preferably a linear alkylene group.
- methylene group methylmethylene group, ethylmethylene group, dimethylmethylene group, diethylmethylene group, dimethylene group (-CH 2 CH 2- ), trimethylene group (-CH 2 CH 2 CH 2- ), tetramethylene group, penta
- dimethylene group -CH 2 CH 2-
- trimethylene group -CH 2 CH 2 CH 2-
- tetramethylene group penta
- examples thereof include methylene group, hexamethylene group, heptamethylene group, octamethylene group, nonamethylene group, decamethylene group, undecamethylene group, dodecamethylene group and tridecamethylene group.
- it is an alkylene group having 2 to 18 carbon atoms, preferably an alkylene group having 2 to 10 carbon atoms, more preferably an alkylene group having 2 to 8 carbon atoms, and further preferably an alkylene group having 2 to 6 carbon atoms. Yes, particularly preferably an alkylene group having 2 to 5 carbon atoms.
- some carbon atoms may be replaced with at least one atom (preferably an oxygen atom) selected from the group consisting of an oxygen atom and a nitrogen atom. It is preferable that some of the carbon atoms are carbon atoms that are not directly bonded to any of the silicon atom and the 3- to 8-membered ring or the epoxy ring. Further, some of the carbon atoms which may be substituted are one or a plurality of (for example, 2, 3, 4, 5, or 6) carbon atoms, and preferably one carbon atom.
- (*) - alkylene having 2 to 9 carbon atoms in the alkylene -O- C 1 -C 8 - preferably (*)-Alkylene with 2 to 4 carbon atoms-O-alkylene with 1 to 3 carbon atoms, more preferably (*)-alkylene with 2 to 4 carbon atoms-alkylene with 1 to 2 carbon atoms, particularly Preferably, (*)-alkylene-O-methylene having 3 carbon atoms is used.
- m represents an integer of 0 to 6 (ie, 0, 1, 2, 3, 4, 5, or 6).
- n represents an integer of 0 to 3 (that is, 0, 1, 2, or 3).
- the group to which R 2 of the formula (3) is bonded is represented by the formula (4) (hereinafter, may be referred to as "the group of the formula (4)"). , It becomes as follows.
- the group of the formula (4) indicates any of the following groups because when m is 0, only the epoxy ring remains and n is an integer of 0 to 3.
- R 2 and R 3 are attached to a 3- to 8-membered ring or an epoxy ring.
- n indicates the number of R 3 to bind to 3-8-membered ring or epoxy ring.
- R 3 are the same or different, an alkyl group having 1 to 18 carbon atoms, an alkenyl group having 2 to 9 carbon atoms, a cycloalkyl group, an aryl group or an aralkyl group, these groups, one
- the carbon atom of the part may be replaced with at least one atom selected from the group consisting of an oxygen atom and a nitrogen atom. It is preferable that some of the carbon atoms are carbon atoms that are not directly bonded to a 3- to 8-membered ring or an epoxy ring. Further, some of the carbon atoms which may be substituted are one or a plurality of (for example, 2, 3, 4, 5, or 6) carbon atoms, and preferably one carbon atom.
- R 3 is preferably an alkyl group having 1 to 3 carbon atoms, and more preferably a methyl group or an ethyl group.
- R 1 , R 2 , R 3 , m, and n are the same as described above, R 1 is all the same, and R 3 is present (plural).
- groups that are all identical can be mentioned.
- the group is present in the epoxy resin represented by the formula (1) at 1, 2, 3 or 4, and the respective groups may be the same or different, and it is preferable that they are the same.
- R 3 is the same as described above, and a group in which m indicates 0, 1, 2, 3 or 4 and n indicates 0, 1 or 2 is used. Among them, more preferably these, (also R 3 both have the same meanings as defined above) for example the following groups.
- the group of the formula (4) is present in 1, 3, or 4 in the epoxy resin represented by the formula (1), but each group may be the same or different, and it is preferable that they are the same.
- R Xa a carbon atoms constituting the hydrocarbon ring constituting the X ring, R Xb, hydrogen atoms bonded to R Xc, and the carbon atom to which R Xd is not bound is a lower carbon substituents or It may be substituted with a halogen atom (preferably a lower carbon substituent). That is, when the X ring is a saturated hydrocarbon ring or an unsaturated hydrocarbon ring, or a ring having a structure in which 2 to 6 saturated hydrocarbon rings and / or unsaturated hydrocarbon rings are condensed, these rings are formed.
- R Xa a carbon atom, R Xb, hydrogen atoms bonded to R Xc, and the carbon atom to which R Xd is not bound, substituted with a lower carbon substituent or a halogen atom (preferably lower carbon substituent)
- the X ring is a ring having a structure in which two saturated hydrocarbon rings and / or unsaturated hydrocarbon rings are linked, these linked saturated hydrocarbon rings and / or unsaturated hydrocarbon rings are connected.
- R Xa a carbon atom constituting the hydrocarbon ring, R Xb, R Xc, and hydrogen atoms bonded to the carbon atom to which R Xd is not bound is a lower carbon substituent or a halogen atom (preferably lower carbon substituent It may be replaced with a group).
- the X ring is described a case where the ring represented by the formula (2) more specifically and R Xa a carbon atom constituting the X 1 ring and X 2 rings, R Xb, R Xc, It can be said that the hydrogen atom bonded to the carbon atom to which RXd is not bonded may be substituted with a lower carbon substituent or a halogen atom (preferably a lower carbon substituent).
- R Xa a carbon atoms constituting the hydrocarbon ring constituting the X ring, R Xb, R Xc, and "R Xa-d unbound carbon atom to which R Xd is not bound Sometimes called a carbon atom.
- the hydrogen atom bonded to the R Xad unbonded carbon atom may be substituted, is bonded to one R Xad unbonded carbon atom. That is, when the hydrogen atom attached to R Xa-d unbound carbon atoms is substituted, one hydrogen atom have a lower carbon substituent or a halogen of the hydrogen atoms bonded to R Xa-d unbound carbon atoms It is preferably replaced with an atom. Further, the number of the substitutions (that is, the total of the lower carbon substituents and the halogen atoms) is preferably smaller than the number of RXad unbonded carbon atoms.
- the number of the substitutions is preferably 1 to 6 (1, 2, 3, 4, 5, or 6), more preferably 1 to 4, and even more preferably 1 to 2.
- the hydrogen atom to be substituted is preferably a hydrogen atom bonded to a carbon atom to which Y is not bonded.
- the epoxy resin represented by the formula (1) is represented by the formula (1-X1).
- R Xa , R Xb, R Xc, and R Xd is the in the same, R XgI and R Xg2 are the same or different, a hydrogen atom, a lower alkyl group, a lower alkoxy
- An epoxy resin represented by a group or a lower alkenyl group can be preferably exemplified.
- R Xa , R Xb, R Xc, R Xd is R XgI and R Xg2, respectively, it is more preferably bonded to different carbon atoms on the benzene ring.
- the epoxy resins represented by the formula (1-X1) those in which RXg1 and RXg2 are hydrogen atoms are preferable.
- R Xa , R Xb, R Xc, and R Xd are the same as defined above, R XgI and R Xg2 are as defined above.
- R Xa , R Xb, R Xc, and R Xd is the in the same, R XgI and R Xg2 are as defined above.
- An epoxy resin represented by are illustrative it can.
- R Xc and R Xd in R Xa and R Xb is a hydrogen atom is a radical of the formula (3)
- R Xg1 and R Xg2 are hydrogen atoms some cases and, R Xb and R Xd in R Xa and R Xc is a hydrogen atom is a radical of the formula (3), when R XgI and R Xg2 is a hydrogen atom is more preferable.
- R Xb in R Xa is a hydrogen atom
- R Xc and R Xd is a group of the formula (3)
- R Xa, R Xb, R Xc, and R Xd are the same as defined above, R X11, R X12, and R X13 and R X21, RX22 and RX23 represent a hydrogen atom, a lower alkyl group, a lower alkoxy group, or a lower alkenyl group, which are the same or different.
- R Xa, R Xb, R Xc, and R Xd are the same as defined above
- R X11, R X12, and R X13 and R X21, RX22 and RX23 represent a hydrogen atom, a lower alkyl group, a lower alkoxy group, or a lower alkenyl group, which are the same or different.
- R Xa , R Xc, R X11, R X12, and R X13 is, it is more preferred that bonded to different carbon atoms
- R Xb, R Xd, R X21, R X22, and R X23 is, it is more preferably bonded to different carbon atoms.
- R Xa, R Xb, R Xc, R Xd, R X11, R X12, R X13, R X21, R X22, and R X23 are both not bonded to the carbon atom of Y are attached.
- Y is as defined above, R Xa, R Xb, R Xc, and R Xd are the same as defined above, R X11, R X12, and R X13 and R X21, RX22 and RX23 are the same or different, and represent a hydrogen atom, a lower alkyl group, a lower alkoxy group, or a lower alkenyl group), or an epoxy resin represented by the formula (1-X2b):
- Y is as defined above, R Xa, R Xb, R Xc, and R Xd are the same as defined above, R X11, R X12, and R X13 and R X21, RX22 and RX23 are the same or different, and represent a hydrogen atom, a lower alkyl group, a lower alkoxy group, or a lower alkenyl group), or an epoxy resin represented by the formula (1-X2c):
- R Xa, R Xb, R Xc, and R Xd are the same as defined above
- R X11, R X12, and R X13 and R X21, RX22 and RX23 can be exemplified by epoxy resins represented by hydrogen atoms, lower alkyl groups, lower alkoxy groups, or lower alkenyl groups, which are the same or different from each other.
- R Xa, R Xb, R Xc, and R Xd is a group of the formula (3), R X11 and R X21 is a lower carbon substituent There, if R X12, R X13, R X22 , and R X23 is a hydrogen atom.
- Y is an alkylene group having 1 to 6 carbon atoms (particularly ⁇ C (CH 3 ) 2- ) in which Y may be substituted with an alkyl group having 1 to 4 carbon atoms
- R Xa , RX b , RX c , and R Xd is a group of the formula (3)
- R X11 and R X21 is a lower alkoxy group
- R X12, R X13, R X22, and when R X23 is a hydrogen atom is particularly preferred.
- R Xa, R Xb, R Xc, and groups of the formula (3) R Xd are all the same, if a lower-carbon substituent group R X11 and R X21 is identical, and more preferably.
- R Xc and R Xd in R Xa and R Xb is a hydrogen atom is a radical of the formula (3), R X11, R X12, R It is preferable that X13 , RX21 , RX22 , and RX23 are hydrogen atoms. In this case, it is more preferable that the groups of the formulas (3) of RXc and RXd are the same.
- R Xb in R Xa is a hydrogen atom
- R Xc and R Xd is a group of the formula (3)
- R Xb groups of the formula (3) R Xc and R Xd is identical, and more preferably.
- R Xa-d -bonded hydrogen atom has not been substituted in the non-bonded carbon atom, and, R Xa, R Xb, of R Xc, and R Xd, R Xa and R Xb is either R Xc and R Xd hydrogen atom is a group of formula (3), not substituted hydrogen atoms bonded to (iiia) R Xa-d unbound carbon atoms, and, R Xa, R Xb, among R Xc, and R Xd, R xb in R Xa is a hydrogen atom, R Xc, and either R Xd is a group of formula (3), or (iva) to R Xa-d unbound carbon atoms bonded hydrogen atom has not been substituted, and all R Xa, R Xb, R Xc , and R Xd can be a group of the formula (3).
- X ii is a divalent group obtained by removing two hydrogen atoms from the hydrocarbon ring, or formula (2 g- iii):
- R 1 , R 2 , R 3 , m, and n are the same as described above.
- the epoxy resin represented by is preferably included.
- R 1 , R 2 , R 3 , m, and n may all be the same or different, and are preferably the same.
- Examples of the divalent group represented by Xii include cyclohexane-1,4-diyl group and 1,4-phenylene group, and more preferably 1,4-phenylene group.
- Y is a bond, a dimethylmethylene group, an oxygen atom, or -SO 2 - and a group is particularly preferred.
- Examples of X ii include cyclohexane-1,4-diyl group, 1,4-phenylene group, and formula (2 g- iiia'), and more preferably 1,4-phenylene group.
- m is the same 0,1,2,3, or 4 (particularly preferably, m 0 or 4 identical), n is 0 in the same (i.e., the R 3 ring the is unsubstituted), X ii hydrocarbon ring (particularly preferably a divalent group obtained by removing two hydrogen atoms from a benzene ring), alkyl of R 1 is 1 to 3 carbon atoms with the same based on, R 2 is silicon atoms and 3 to 6-membered ring or epoxy one carbon atom alkylene 1-2 carbon atoms 6 be replaced by an oxygen atom which is not also bonded directly to any ring in the same Epoxide resins represented by their respective groups can be more preferably used in the present invention.
- the epoxy resin represented by the formula (1) has the following formula (1-iiiia):
- X iii is a trivalent radical obtained by removing three hydrogen atoms from a hydrocarbon ring, or the formula (2 g -iiia):
- R 1, R 2, R 3, m, and n are as defined above.
- the epoxy resin represented by is preferably included.
- R 1 , R 2 , R 3 , m, and n may all be the same or different, and are preferably the same.
- Y is a bond, a dimethylmethylene group, an oxygen atom, or -SO 2 - and a group is particularly preferred.
- m is the same 0,1,2,3, or 4 (particularly preferably, m 0 or 4 identical), n is 0 in the same (i.e., the R 3 ring the is unsubstituted),
- X iii is a hydrocarbon ring (particularly preferably a trivalent group obtained by removing three hydrogen atoms from a benzene ring), alkyl of R 1 is C 1 -C 3 in the same based on, R 2 is silicon atoms and 3 to 6-membered ring or epoxy one carbon atom alkylene 1-2 carbon atoms 6 be replaced by an oxygen atom which is not also bonded directly to any ring in the same Epoxide resins represented by their respective groups can be more preferably used in the present invention.
- the epoxy resin represented by the formula (1) has the following formula (1-iva):
- X iv indicates a tetravalent group represented by (1') above, and a hydrogen atom bonded to an RXad unbonded carbon atom in the X ring is not substituted.
- R 1 , R 2 , R 3 , m, and n are the same as described above.
- R 1 , R 2 , R 3 , m, and n may all be the same or different, and are preferably the same.
- X iv tetravalent group represented by X iv , preferably the following groups:
- Y is a bond, a dimethylmethylene group, an oxygen atom, or -SO 2 - and a group is particularly preferred.
- m is the same 0,1,2,3, or 4 (particularly preferably, m 0 or 4 identical), n is 0 in the same (i.e., the R 3 ring Is not substituted), X iv is a tetravalent group obtained by removing 4 hydrogen atoms from a hydrocarbon ring (particularly preferably a benzene ring), and R 1 is an alkyl having the same carbon number of 1 to 3 carbon atoms.
- R 2 is silicon atoms and 3 to 6-membered ring or epoxy one carbon atom alkylene 1-2 carbon atoms 6 be replaced by an oxygen atom which is not also bonded directly to any ring in the same Epoxide resins represented by their respective groups can be more preferably used in the present invention.
- epoxy resins represented by the formula (1) more preferably, for example, the formula (1-IIa):
- R 1, R 2, and X ii are as defined above.
- Examples thereof include compounds represented by.
- X ii is a 1,4-phenylene group or a group represented by the formula (2 g -IIA ') be a (preferably 1,4-phenylene group)
- R 1 is the same or different (preferably the same) alkyl group having 1 to 3 carbon atoms (particularly a methyl group)
- R 2 is the same or different (preferably the same) alkylene group having 2 to 6 carbon atoms.
- R 1 and X ii are as defined above.
- An example is an epoxy resin represented by.
- R 1 may be the same or different, and is preferably the same.
- R 1 are identical or different (preferably the same) an alkyl group having 1 to 3 carbon atoms (especially methyl), X ii is 1, A 4-phenylene group or a group represented by the formula (2 g- ia') is more preferable.
- R 1 , R 2 , R 3 , X ii , and n are the same as described above.
- the epoxy resin represented by is also mentioned. It should be noted that R 1 , R 2 , R 3 , and n may all be the same or different, and are preferably the same.
- X ii is a 1,4-phenylene group or a group represented by the formula (2 g- iiia') (preferably a 1,4-phenylene group), and R 1 is the same or different.
- alkyl group preferably the same
- n are 0 (that is, the ring is not substituted with R 3 )
- R 2 is the same or different (preferably the same). More preferably, it is an alkylene group having 2 to 6 carbon atoms (preferably a dimethylene group: ⁇ (CH 2 ) 2- ).
- epoxy resins represented by the formula (1) more preferable ones include, for example, the formula (1-IIIa):
- R 1 , R 2 , R 3 , X ii , and n are the same as described above.
- the epoxy resin represented by is also mentioned. It should be noted that R 1 , R 2 , R 3 , and n may all be the same or different, and are preferably the same.
- X iii is X iii
- R 1 is the same or different (preferably the same), an alkyl group having 1 to 3 carbon atoms (particularly a methyl group), and both n are 0. (I.e., the ring is not substituted with R 3 ), and R 2 is the same or different (preferably the same) as an alkylene group having 2 to 6 carbon atoms (preferably a dimethylene group:-(CH 2 ) 2- ). Is more preferable.
- the epoxy resin represented by the formula (1) can be used alone or in combination of two or more.
- the epoxy resin represented by the formula (1) can be produced based on or according to a known method, for example, based on or according to the description of Patent Document (UK Patent No. 11239360) or the like. Further, for example, the epoxy resin represented by the formula (1-ia) can be produced by the reaction represented by the following reaction formula.
- R 2A is an alkenyl group having 2 to 18 carbon atoms, in which some carbon atoms are replaced with at least one atom selected from the group consisting of oxygen atoms and nitrogen atoms.
- R 1 , R 2 , R 3 , and X ii may be the same as above.
- the alkenyl group having 2 to 18 carbon atoms represented by R 2A is a linear or branched alkenyl group, preferably linear. Specific examples thereof include a vinyl group, an allyl group, a propenyl group, a butenyl group, a pentenyl group, a hexenyl group, a heptenyl group, an octenyl group, a norbornenyl group, a cyclohexenyl group and the like.
- alkenyl group having 2 to 10 carbon atoms is preferably an alkenyl group having 2 to 10 carbon atoms, more preferably an alkenyl group having 2 to 8 carbon atoms, still more preferably an alkenyl group having 2 to 6 carbon atoms, and particularly preferably a vinyl group, an allyl group or an alkenyl group. It is a butenyl group.
- the alkenyl group is preferably an ⁇ -alkenyl group.
- alkenyl groups having 2 to 18 carbon atoms some carbon atoms may be replaced with at least one atom (preferably an oxygen atom) selected from the group consisting of an oxygen atom and a nitrogen atom. It is preferable that some of the carbon atoms are carbon atoms that are not directly bonded to the epoxy ring. In addition, some of the carbon atoms that may be substituted are one or a plurality of (for example, 2, 3, 4, 5, or 6) carbon atoms, and preferably one carbon atom. Examples of the group include 2 to 9 alkenyl-O-1 to 8 alkylene-carbons, preferably 2 to 4 alkenyl-O-1 to 3 alkylene-carbons, and more preferably 2 to 3 carbon atoms.
- Examples thereof include 4-alkenyl-O-alkylene having 1 to 2 carbon atoms, and particularly preferably 3 alkenyl (O-CH 2-) having 3 carbon atoms.
- CH 2 CH-O-CH 2-
- CH 2 CH-CH 2- O-CH 2-
- CH 2 CH-CH 2- O- (CH 2 ) 2-
- the epoxy resin represented by the formula (1-ia) can be produced by hydrosilylating the compound represented by the formula (5-ia) and the compound represented by the formula (6).
- the hydrosilylation reaction can usually be carried out in the presence of a catalyst, in the presence of a solvent or in the absence of a solvent.
- X i represents a monovalent group obtained by removing one hydrogen atom from the hydrocarbon ring
- R 1 is the same as described above.
- X i to X iv are monovalent groups obtained by removing one hydrogen atom from the X ring and obtained by removing two hydrogen atoms from the X ring, respectively.
- the catalyst used in the hydrosilylation reaction may be a known catalyst, for example, a platinum-based catalyst such as platinum carbon, rhodium chloride, platinum olefin complex, platinum alkenylsiloxane complex, platinum carbonyl complex; tris (triphenylphos). Fin) Rhodium-based catalysts such as rhodium; iridium-based catalysts such as bis (cyclooctadienyl) dichloroiridium can be mentioned.
- the above catalyst may be in the form of a solvate (for example, a hydrate, a solvate, etc.), or may be used in the form of a solution by dissolving the catalyst in an alcohol (for example, ethanol, etc.). it can.
- the catalyst can be used alone or in combination of two or more.
- the amount of the catalyst used may be an effective amount as a catalyst, and for example, the compound represented by the above formula (5-ia), (5-ia), (5-iii), or (5-iva) and the formula (5-iva). It is 0.00001 to 20 parts by mass, preferably 0.0005 to 5 parts by mass with respect to 100 parts by mass of the total amount of the compound represented by 6).
- the hydrosilylation reaction proceeds without using a solvent, but the reaction can be carried out under mild conditions by using a solvent.
- the solvent include aromatic hydrocarbon solvents such as toluene and xylene; aliphatic hydrocarbon solvents such as hexane and octane; ether solvents such as tetrahydrofuran and dioxane; alcohol solvents such as ethanol and isopropanol. These may be used alone or in combination of two or more.
- the amount of the compound represented by the formula (6) used is, for example, Si- in the compound represented by the formula (5-ia), (5-ia), (5-iii), or (5-iva). It is usually 0.5 to 2 mol, preferably 0.6 to 1.5 mol, and more preferably 0.8 to 1.2 mol with respect to 1 mol of H group.
- the reaction temperature is usually 0 ° C. to 150 ° C., preferably 10 ° C. to 120 ° C., and the reaction time is usually about 1 hour to 24 hours.
- the epoxy resin represented by the formula (1) can be obtained by using a known isolation method such as distilling off the solvent from the reaction solution.
- the specific phenolic curing agent used in the present invention is a phenolic resin that is liquid at 25 ° C. and 1 atm.
- a liquid at 25 ° C. means a liquid at 25 ° C. and 1 atm.
- the liquid phenolic resin refers to a phenolic resin that is liquid at 25 ° C. and 1 atm.
- the phenolic curing agent may be composed of one kind of resin or two or more kinds of resins as long as it shows a liquid state at 25 ° C. as a whole.
- the viscosity of the liquid phenolic curing agent at 25 ° C. is, for example, 0.1 to 3000 Pa ⁇ s.
- the viscosity is a value measured using a B-type viscometer under the conditions of 25 ° C. and a rotation speed of 20 rpm.
- the molecular weight of the liquid phenol resin is preferably 100 to 3000, more preferably 100 to 1000, because the handleability is improved.
- liquid phenolic curing agent examples include liquid allylphenol resin, liquid propenylphenol resin, and liquid alkylphenol resin.
- equation (7) More specifically, for example, equation (7):
- R 4 to R 6 represent hydrogen atoms, alkenyl groups having 2 to 9 carbon atoms, alkyl groups having 1 to 18 carbon atoms, or alkylol groups having 1 to 9 carbon atoms, which are the same or different.
- R 7 to R 8 represent hydrogen atoms or alkyl groups having 1 to 4 carbon atoms, which are the same or different, and p represents a number of 0 to 6 on average.
- all R 4 are hydrogen atoms. Yes, all R 5s are hydrogen atoms, and not all R 6s are hydrogen atoms.
- a phenol resin represented by this can be preferably used.
- a phenol resin having a structure in which at least 30% or more, 40% or more, or 50% or more of the repeating phenol units are substituted is highly likely to become a liquid phenol resin at 25 ° C.
- the alkenyl group having 2 to 9 carbon atoms is a linear or branched alkenyl group, for example, a vinyl group.
- alkenyl group having 2 to 9 carbon atoms is a linear or branched alkenyl group, for example, a vinyl group.
- examples thereof include an allyl group, a 1-propenyl group, a butenyl group, a pentenyl group, a hexenyl group, a heptenyl group, an octenyl group and a nonenyl group. It is preferably an alkenyl group having 2 to 4 carbon atoms, and particularly preferably an allyl group.
- alkyl having 1 to 18 carbon atoms (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, or 18)
- the group is a linear or branched alkyl group, for example, methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, isobutyl group, tert-butyl group, n-pentyl group, neopentyl group.
- tert-pentyl group n-hexyl group, n-heptyl group, 2,2,4-trimethylpentyl group, n-octyl group, isooctyl group, n-nonyl group, n-decyl group, n-dodecyl group, etc.
- It is preferably an alkyl group having 1 to 10 carbon atoms, more preferably an alkyl group having 1 to 6 carbon atoms, and further preferably an alkyl group having 1 to 4 carbon atoms.
- the alkyrrole group having 1 to 9 carbon atoms is a linear or branched-chain alkylol group, for example.
- the alkyl group having 1 to 4 carbon atoms (1, 2, 3, or 4) is a linear or branched alkyl group, for example, a methyl group, an ethyl group, an n-propyl group, and the like. Examples thereof include an isopropyl group, an n-butyl group, an isobutyl group, a tert-butyl group, and the like.
- R 7 and R 8 represent a hydrogen atom.
- p indicates an average value of 0 to 6.
- p is preferably greater than 0.
- the upper limit or the lower limit of the above range of p may be, for example, 1, 2, 3, 4, or 5.
- p more preferably has an average value of 1 to 4.
- R 4 is either R 4-1 or R 4-2 , and R 4-1 has the same or different carbon atoms, respectively. It shows an alkenyl group of 2 to 9, an alkyl group of 1 to 18 carbon atoms, or an alkylol group of 1 to 9 carbon atoms, and R 4-2 is the same, and has a hydrogen atom and an alkenyl having 2 to 9 carbon atoms.
- R 4a is the same or different and represents an alkenyl group having 2 to 9 carbon atoms, an alkyl group having 1 to 18 carbon atoms, or an alkylol group having 1 to 9 carbon atoms, and R 7 and R 8 and p is the same as above), especially the phenolic resin represented by the formula (7a') :.
- Phenolic resins represented by (in the formula, R 4a , R 7 , R 8 and p are the same as described above) are preferable.
- R 4a1 and R 4a2 represent an alkenyl group having 2 to 9 carbon atoms, an alkyl group having 1 to 18 carbon atoms, or an alkylol group having 1 to 9 carbon atoms, as in the case of R 4a .
- R 4a1 and R 4a2 are not the same.
- the blending ratio of the liquid phenolic curing agent in the epoxy resin composition of the present invention may be as long as the effect of the present invention can be exhibited.
- the liquid phenolic curing agent is used with respect to the equivalent amount of epoxy groups in the epoxy resin.
- the equivalent of the reactive functional groups (hydroxyl groups) in the mixture is preferably 10:90 to 90:10, more preferably 20:80 to 80:20, and even more preferably 30:70 to 70:30. It is more preferably 40:60 to 60:40.
- the liquid phenol-based curing agent is preferably, for example, 10 to 150 parts by mass with respect to 100 parts by mass of the epoxy resin in the epoxy resin composition. More preferably, 20 to 100 parts by mass, and even more preferably 30 to 80 parts by mass can be used. The lower limit may be, for example, 40 or 50 parts by mass.
- the epoxy resin composition of the present invention may be used in combination with a curing accelerator when the above curing agent is used.
- a curing accelerator for example, 2-methylimidazole, 2-ethyl imidazole, 2-phenyl imidazole, 2-ethyl-4-methyl imidazole, 1,2-dimethyl imidazole, 1- (2-cyanoethyl) -2-ethyl-4-methyl imidazole, Imidazoles such as 2-undesylimidazole and 2-phenylimidazolin; 2- (dimethylaminomethyl) phenol, triethylenediamine, triethanolamine, 1,8-diazabicyclo (5,4,0) undecene-7,1,5 -Primary amines such as diazabicyclo (4,3,0) -nonen-5; organic phosphines such as triphenylphosphine, diphenylphosphine, tributylphosphine; metal compounds such as tin
- imidazoles, tertiary amines, organic phosphines, and phosphonium salts are preferable. More preferably, imidazoles, tertiary amines, organic phosphines, and even more preferably 2-methylimidazole, 2-ethyl-4-methylimidazole, 1,2-dimethylimidazole, 1,8-diazabicyclo (5, 4,0) Undecene-7 and triphenylphosphine, of which 2-methylimidazole, 2-ethyl-4-methylimidazole and triphenylphosphine are preferable.
- the amount of the curing accelerator used is not particularly limited, but is preferably 0.01 to 10.0 parts by mass, and more preferably 0.1 to 5 parts by mass, based on 100 parts by mass of the epoxy resin in the epoxy resin composition. It is a department.
- the epoxy resin composition of the present invention may contain an epoxy resin other than the epoxy resin represented by the formula (1) as long as the effects of the present invention are not impaired.
- an epoxy resin other than the epoxy resin represented by the formula (1) for example, bisphenol A type epoxy resin, bisphenol F type epoxy resin, phenol novolac type epoxy resin, cresol novolac type epoxy resin, alicyclic epoxy resin, brominated epoxy resin, nitrogen-containing ring epoxy resin triglycidyl isocyanurate and hydantin.
- examples thereof include type epoxy resin, hydrogenated bisphenol A type epoxy resin, aliphatic epoxy resin, glycidyl ether type epoxy resin, bisphenol S type epoxy resin, biphenyl type epoxy resin, dicyclo type epoxy resin, and naphthalene type epoxy resin. It is not limited to these. These epoxy resins may be used alone or in combination of two or more.
- the blending ratio of the epoxy resin represented by the formula (1) and the epoxy resin other than the epoxy resin represented by the formula (1) is In terms of mass ratio, for example, it is 100: 0 to 20:80, preferably 100: 0 to 30:70, and more preferably 100: 0 to 40:60.
- the epoxy resin composition of the present invention may contain a filler, a curing agent other than the liquid phenolic curing agent, a thermoplastic resin, an additive and the like, if necessary, as long as the object and the effect of the present invention are not impaired. ..
- the filler may be used alone or in combination of two or more in consideration of fluidity, heat resistance, low thermal expansion property, mechanical properties, hardness, scratch resistance, adhesiveness, etc. required for the composition and the cured product.
- silica more specifically, crystalline silica, molten silica, spherical molten silica, etc.
- titanium oxide zirconium oxide, zinc oxide, tin oxide, silicon nitride, silicon carbide, boron nitride, calcium carbonate, calcium silicate, titanium.
- Examples thereof include inorganic compounds such as potassium acid, aluminum nitride, indium oxide, alumina, antimony oxide, cerium oxide, magnesium oxide, iron oxide and tin-doped indium oxide (ITO). Examples thereof include metals such as gold, silver, copper, aluminum, nickel, iron, zinc and stainless steel. In addition, minerals such as montmorillonite, talc, mica, boehmite, kaolin, smectite, zonolite, bercurite, and sericite can be mentioned.
- fillers include carbon compounds such as carbon black, acetylene black, ketjen black, and carbon nanotubes; metal hydroxides such as aluminum hydroxide and magnesium hydroxide; various glasses such as glass beads, glass flakes, and glass balloons. Can be mentioned. Inorganic compounds are preferable from the viewpoint of heat resistance and fluidity of the epoxy resin composition according to the present invention, and silica and alumina are more preferable. Further, as the filler, the powder may be used as it is, or a filler dispersed in the resin may be used.
- the curing agent examples include a phenol-based curing agent, an amine-based curing agent, an amide-based curing agent, an acid anhydride-based curing agent, a mercaptan-based curing agent, an isocyanate-based curing agent, and an active ester-based curing agent that are solid at 25 ° C. and 1 atm.
- examples thereof include a curing agent and an isocyanate-based curing agent.
- the curing agent may be used alone, or may be used properly according to the desired characteristics, and two or more kinds may be used in combination.
- thermoplastic resin examples include polyolefin resins, acrylic resins, phenoxy resins, polyamide resins, polyester resins, polycarbonate resins, polyurethane resins, polyarylate resins, polyphenylene ether resins, polyacetal resins, and acid-modified ones thereof. Can be mentioned. From the viewpoint of compatibility with the epoxy resin composition according to the present invention and heat resistance, polyolefin resins, acrylic resins, phenoxy resins, polyarylate resins, polyphenylene ether resins, and acid-modified ones thereof are preferable, among these. Polyolefin resins and acid-modified polyolefin resins are more preferable.
- the additive examples include a coupling agent, an antioxidant, an inorganic phosphor, a lubricant, an ultraviolet absorber, a thermal light stabilizer, an antistatic agent, a polymerization inhibitor, a defoaming agent, a solvent, an antiaging agent, and a radical.
- Prohibition agents, adhesion improvers, flame retardants, surfactants, storage stability improvers, ozone anti-aging agents, thickeners, plasticizers, radiation blockers, nucleating agents, conductivity-imparting agents, phosphorus peroxides examples thereof include decomposing agents, pigments, metal inactivating agents, and physical property adjusting agents.
- the coupling agent is not particularly limited, but is ⁇ -aminopropyltrimethoxysilane, ⁇ -aminopropyltriethoxysilane, ⁇ -mercaptopropyltrimethoxysilane, ⁇ -methacryloxypropyltrimethoxysilane, ⁇ -.
- Glycydoxypropyltrimethoxysilane, alcoholic oligomer-type coupling agent commercially available products include, for example, KR-516 and KR-517 manufactured by Shin-Etsu Chemical Industry Co., Ltd.), polyfunctional group-type silane.
- Coupling agents (commercially available products include, for example, X-12-972F, X-12-981S, X-12-984S, X-12-1154, etc. manufactured by Shin-Etsu Chemical Industry Co., Ltd.) and the like. Be done.
- the epoxy resin composition of the present invention has a relatively low viscosity at 25 ° C., and has a semiconductor encapsulant, a semiconductor encapsulant, a liquid encapsulant, an underfill material, a potting material, a sealing material, an interlayer insulating film, an adhesive layer, and the like. Good workability when used as a coverlay film, electromagnetic shielding film, printed circuit board material, composite material, or the like.
- the viscosity at 25 ° C. is 0.1 to 1000 Pa ⁇ s, preferably 0.1 to 500 Pa ⁇ s, and more preferably 1 to 200 Pa ⁇ s.
- the upper or lower limit of the range may be, for example, 150, 100, 90, 80, 70, 60, 50, 40, 30, 20, or 10 Pa ⁇ s.
- the range may be 0.1 to 150 Pa ⁇ s or 1 to 100 Pa ⁇ s.
- the viscosity is a value measured using a B-type viscometer under the conditions of 25 ° C. and a rotation speed of 20 rpm.
- the epoxy resin composition of the present invention has good storage stability at 25 ° C and is excellent in pot life. Specifically, when the specific epoxy resin and the specific phenolic curing agent are mixed and left in a constant temperature bath at 25 ° C., the number of days until the viscosity becomes twice or more the initial viscosity is 10 days or more. Is preferable.
- a cured product (that is, a cured product of the epoxy resin composition) can be obtained by curing the epoxy resin composition of the present invention.
- the curing method is not particularly limited, and examples thereof include a method of heat-curing the composition.
- the curing temperature is usually from room temperature to 250 ° C., and the curing time varies depending on the composition and can be set widely from 30 minutes to 1 week.
- the varnish is prepared by dissolving the epoxy resin composition in a solvent (for example, an organic solvent such as toluene, xylene, methyl ethyl ketone, acetone, cyclohexanone, methylcyclohexane, cyclohexane) within a range that does not adversely affect the effect of the present invention. be able to.
- a cured product having a desired shape can be obtained by using the varnish.
- a film-like cured product can be obtained by applying the varnish on a base material (for example, copper foil, aluminum foil, polyimide film, etc.) and heating it.
- the curing temperature is usually from room temperature to 200 ° C., and the curing time varies depending on the composition solution and can be set widely from 30 minutes to 1 week.
- the present invention preferably also includes such varnishes and cured products.
- -Epoxy resin G Bisphenol F type epoxy resin (grade 806, manufactured by Mitsubishi Chemical Corporation) (epoxy equivalent 175 g / eq)
- Epoxy resin H alicyclic epoxy resin (celloxide 2021P; generic name is 3', 4'-epoxycyclohexylmethyl 3,4-epoxycyclohexanecarboxylate, manufactured by Daicel Co., Ltd.) (epoxy equivalent 137 g / eq)
- Epoxy resin I Dicyclopentadiene type epoxy resin (HP-7200, manufactured by DIC Corporation) (epoxy equivalent 268 g / eq) -Liquid phenolic curing agent A: Allylated phenol novolac resin (MEH-8000H, manufactured by Meiwa Kasei Co., Ltd.) -Liquid phenolic
- epoxy resin I (HP-7200) is a resin represented by the following formula.
- liquid phenolic curing agent A (MEH-8000H) is a resin represented by the following formula.
- liquid phenolic curing agent B (ELPC75) is a resin represented by the following formula, and its viscosity is 24 Pa ⁇ s.
- liquid phenolic curing agent C is a resin represented by the following formula, and its viscosity is 3000 P (that is, 300 Pa ⁇ s).
- the solid phenolic curing agent (TD-2131) is a resin represented by the following formula.
- Comparative Example 4 47 parts by mass of the solid phenolic curing agent was added to 47 parts by mass of acetone, and the mixture was dissolved by stirring at room temperature (25 ° C.) for 30 minutes with a magnetic stirrer. 100 parts by mass of the epoxy resin D and the curing accelerator B were added thereto and mixed uniformly. Then, the varnish of the epoxy resin composition was prepared by sufficiently degassing.
- Oxygen-free copper plate (JIS C1020P) (size 2 ⁇ 25 ⁇ 100 mm) of each epoxy resin composition obtained in Examples 1 to 10 and Comparative Examples 1 to 4 so that the adhesive portion becomes a rectangle of 12.5 ⁇ 25 mm. ), Attach another oxygen-free copper plate, and heat at 100 ° C for 1 hour, 120 ° C for 2 hours, 150 ° C for 2 hours, 180 ° C for 2 hours, and 200 ° C for 2 hours to cure. , A tensile shear adhesive test piece.
- the obtained adhesive test piece was subjected to a tensile shear adhesion test using a tensile tester (AGS-X, manufactured by Shimadzu Corporation) under the conditions of a distance between gripping tools of 100 mm and a test speed of 5 mm / min, and maximum fracture.
- the tensile shear bond strength was calculated from the measured strength and the bond area.
- the epoxy resin compositions described in Examples 1 to 10 show the same or higher adhesiveness, excellent storage stability, relative permittivity, and dielectric loss tangent as compared with the epoxy resin compositions of Comparative Examples 1 to 3. It was. Moreover, it was liquid and had low viscosity at 25 ° C. as compared with the epoxy resin composition of Comparative Example 4.
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Abstract
Description
項1.
式(1-iia):
R1は同一又は異なって、炭素数1~18のアルキル基、炭素数2~9のアルケニル基、シクロアルキル基、アリール基又はアラルキル基を示し、これらの基は、一部の炭素原子が、酸素原子及び窒素原子からなる群より選ばれる少なくとも1種の原子で置換されていてもよく、
R2は同一又は異なって、炭素数1~18のアルキレン基を示し、この基は、ケイ素原子に直接結合した炭素原子を除く一部の炭素原子が、酸素原子及び窒素原子からなる群より選ばれる少なくとも1種の原子で置換されていてもよく、
R3は同一又は異なって、炭素数1~18のアルキル基、炭素数2~9のアルケニル基、シクロアルキル基、アリール基又はアラルキル基を示し、これらの基は、一部の炭素原子が、酸素原子及び窒素原子からなる群より選ばれる少なくとも1種の原子で置換されていてもよく、
mは0~6の整数を示し、nは0~3の整数を示す。]
で表されるエポキシ樹脂、
式(1-iiia):
(式中、Yは、前記に同じ。)で表される3価の基を示し、
R1、R2、R3、m、及びnは前記に同じ。]
で表されるエポキシ樹脂、並びに
式(1-iva):
R1、R2、R3、m、及びnは前記に同じ。]
で表されるエポキシ樹脂
からなる群より選択される少なくとも1種のエポキシ樹脂と25℃で液状のフェノール系硬化剤とを含有するエポキシ樹脂組成物。
項2.
前記飽和炭化水素環が炭素数4~8の飽和炭化水素環であり、
前記不飽和炭化水素環が炭素数4~8の不飽和炭化水素環である、
項1に記載のエポキシ樹脂組成物。
項3.
エポキシ樹脂が、
式(1-IIa):
式(1-IIb):
式(1-IIIa):
項1又は2に記載のエポキシ樹脂組成物。
項4.
式(1-IIa)で表されるエポキシ樹脂が、
Xiiが、1,4-フェニレン基又は式(2g-iia’):
式(1-IIb)で表されるエポキシ樹脂が、
Xiiが1,4-フェニレン基又は式(2g-iia’):
式(1-IIIa)で表されるエポキシ樹脂が、
Xiiiが
項3に記載のエポキシ樹脂組成物。
項5.
25℃で液状のフェノール系硬化剤が、液状アリルフェノール樹脂、液状プロペニルフェノール樹脂、液状アルキルフェノール樹脂からなる群より選択される少なくとも1種を含有する、項1~4のいずれかに記載のエポキシ樹脂組成物。
項6.
25℃で液状のフェノール系硬化剤が、式(7)
項7.
さらに無機充填剤としてシリカとアルミナのうち少なくともいずれか一方を含有する、項1~6のいずれかに記載のエポキシ樹脂組成物。
項8.
項1~7のいずれかに記載のエポキシ樹脂組成物及び有機溶媒を含むワニス。
項9.
項1~7のいずれかに記載のエポキシ樹脂組成物の硬化物。
項10.
項1~7のいずれかに記載のエポキシ樹脂組成物、項8に記載のワニス、又は項9に記載の硬化物を備える、半導体封止体、半導体用封止材、液状封止材、アンダーフィル材、ポッティング材、シール材、層間絶縁膜、接着層、カバーレイフィルム、電磁波シールドフィルム、プリント基板材料又は複合材料。
項11.
半導体封止体、半導体用封止材、液状封止材、アンダーフィル材、ポッティング材、シール材、層間絶縁膜、接着層、カバーレイフィルム、電磁波シールドフィルム、プリント基板材料又は複合材料のための、項1~7のいずれかに記載のエポキシ樹脂組成物、項8に記載のワニス、又は項9に記載の硬化物。
項12.
半導体封止体、半導体用封止材、液状封止材、アンダーフィル材、ポッティング材、シール材、層間絶縁膜、接着層、カバーレイフィルム、電磁波シールドフィルム、プリント基板材料又は複合材料を製造するための、項1~7のいずれかに記載のエポキシ樹脂組成物、項8に記載のワニス、又は項9に記載の硬化物の使用。
で示される4価の基として、特に好ましくは以下の式で表される基が挙げられる。すなわち、
で表される基である。
で表される基である場合、式(1)で表されるエポキシ樹脂として、式(1-X2)
R1、R2、R3、m、及びnは前記に同じ。〕
で表されるエポキシ樹脂を好ましく包含する。なお、R1、R2、R3、m、及びnは、いずれも、それぞれ同一又は異なっていてよく、同一であることが好ましい。
で表される基である。
で表されるエポキシ樹脂を好ましく包含する。なお、R1、R2、R3、m、及びnは、いずれも、それぞれ同一又は異なっていてよく、同一であることが好ましい。
で表される基である。
で表されるエポキシ樹脂を包含する。なお、R1、R2、R3、m、及びnは、いずれも、それぞれ同一又は異なっていてよく、同一であることが好ましい。
で表される基が挙げられる。
で表される化合物が挙げられる。
上記式(1-IIa)で表されるエポキシ樹脂のうち、さらに好ましいものとして、式(1-IIa1):
又は式(1-IIa2):
で表されるエポキシ樹脂が例示できる。なお、R1は同一又は異なっていてよく、同一であることが好ましい。
で表されるエポキシ樹脂を挙げることもできる。なお、R1、R2、R3、及びnは、いずれも、それぞれ同一又は異なっていてよく、同一であることが好ましい。
式(1-IIb)において、Xiiが1,4-フェニレン基又は式(2g-iia’)で表される基(好ましくは1,4-フェニレン基)であり、R1が同一又は異なって(好ましくは同一で)炭素数1~3のアルキル基(特にメチル基)であり、nが共に0(すなわち環はR3で置換されていない)であり、R2が同一又は異なって(好ましくは同一で)炭素数2~6のアルキレン基(好ましくはジメチレン基:-(CH2)2-)であるものがより好ましい。
で表されるエポキシ樹脂を挙げることもできる。なお、R1、R2、R3、及びnは、いずれも、それぞれ同一又は異なっていてよく、同一であることが好ましい。
式(1-IIIa)において、Xiiiが
又は式(5-iva):
又は式(5-ia):
で表される化合物を用いることにより、上記式(1-iiia)又は(1-iva)で表されるエポキシ樹脂や1個の式(3)の基が炭化水素環に結合した構造を有するエポキシ樹脂を製造することもできる。また、これらの化合物の構造において、Xi~Xivが、それぞれ、X環から1個の水素原子を除いて得られる1価の基、X環から2個の水素原子を除いて得られる2価の基、X環から3個の水素原子を除いて得られる3価の基、又はX環から4個の水素原子を除いて得られる4価の基、に置換された構造の化合物を用いることで、式(1)で示される種々の化合物を製造することができる。
当該フェノール系硬化剤は、全体として25℃において液状を示すものであれば、1種類の樹脂で構成されていても、2種類以上の樹脂で構成されていてもよい。液状フェノール系硬化剤の25℃での粘度は、例えば、0.1~3000Pa・sが挙げられる。また、配合後のエポキシ樹脂組成物の取り扱い性が良好となることから、好ましくは0.1~500Pa・s、さらに好ましくは0.1~100Pa・sである。なお、当該粘度は、B型粘度計を用いて25℃、回転速度20rpmの条件で測定した値である。
フェノール樹脂が好ましい。
攪拌機、温度計及び冷却器を備え付けた200mL容の四つ口フラスコに、窒素雰囲気下で、アリルグリシジルエーテル5.9g、ヘキサクロロ白金酸六水和物の2質量%エタノール溶液0.05g、トルエン100gを仕込み、液温を70℃まで昇温させた後、1,4-ビス(ジメチルシリル)ベンゼン5.0gを15分間で滴下し、その後、90℃で4時間攪拌した。トルエンを濃縮後、無色透明液体の1,4-ビス[(2,3-エポキシプロピルオキシプロピル)ジメチルシリル]ベンゼン(エポキシ樹脂A)10.3g(エポキシ当量211g/eq)を取得した。
攪拌機、温度計及び冷却器を備え付けた200mL容の四つ口フラスコに、窒素雰囲気下で、1,2-エポキシ-5-ヘキセン5.0g、ヘキサクロロ白金酸六水和物の2質量%エタノール溶液0.05g、トルエン100gを仕込み、液温を70℃まで昇温させた後、1,4-ビス(ジメチルシリル)ベンゼン5.0gを15分間で滴下し、その後、90℃で5時間攪拌した。トルエンを濃縮後、無色透明液体の1,4-ビス[(5,6-エポキシヘキシル)ジメチルシリル]ベンゼン(エポキシ樹脂B)9.5g(エポキシ当量195g/eq)を取得した。
攪拌機、温度計及び冷却器を備え付けた200mL容の四つ口フラスコに、窒素雰囲気下で、3,4-エポキシ-1-ブテン4.0g、ヘキサクロロ白金酸六水和物の2質量%エタノール溶液0.05g、トルエン100gを仕込み、液温を70℃まで昇温させた後、1,4-ビス(ジメチルシリル)ベンゼン5.0gを15分間で滴下し、その後、90℃で5時間攪拌した。トルエンを濃縮後、無色透明液体の1,4-ビス[(3,4-エポキシブチル)ジメチルシリル]ベンゼン(エポキシ樹脂C)8.5g(エポキシ当量167g/eq)を取得した。
攪拌機、温度計及び冷却器を備え付けた200mL容の四つ口フラスコに、窒素雰囲気下で、1,2-エポキシ-4-ビニルシクロヘキサン6.4g、ヘキサクロロ白金酸六水和物の2質量%エタノール溶液0.05g、トルエン100gを仕込み、液温を70℃まで昇温させた後、1,4-ビス(ジメチルシリル)ベンゼン5.0gを15分間で滴下し、その後、90℃で4時間攪拌した。トルエンを濃縮後、無色透明液体の1,4-ビス{[2-(3,4-エポキシシクロヘキシル)エチル]ジメチルシリル}ベンゼン(エポキシ樹脂D)10.8g(エポキシ当量221g/eq)を取得した。
攪拌機、温度計及び冷却器を備え付けた200mL容の四つ口フラスコに、窒素雰囲気下で、1,2-エポキシ-4-ビニルシクロヘキサン4.3g、ヘキサクロロ白金酸六水和物の2質量%エタノール溶液0.05g、トルエン100gを仕込み、液温を70℃まで昇温させた後、ビス[(p-ジメチルシリル)フェニル]エーテル5.0gを15分間で滴下し、その後、90℃で6時間攪拌した。トルエンを濃縮後、無色透明液体の4,4’-ビス{[2-(3,4-エポキシシクロヘキシル)エチル]ジメチルシリル}ジフェニルエーテル(エポキシ樹脂E)8.9g(エポキシ当量267g/eq)を取得した。
攪拌機、温度計及び冷却器を備え付けた200mL容の四つ口フラスコに、窒素雰囲気下で、1,2-エポキシ-4-ビニルシクロヘキサン7.4g、ヘキサクロロ白金酸六水和物の2質量%エタノール溶液0.05g、トルエン100gを仕込み、液温を70℃まで昇温させた後、1,3,5-トリス(ジメチルシリル)ベンゼン5.0gを15分間で滴下し、その後、90℃で6時間攪拌した。トルエンを濃縮後、無色透明液体の1,3,5-トリス{[2-(3,4-エポキシシクロヘキシル)エチル]ジメチルシリル}ベンゼン(エポキシ樹脂F)11.8g(エポキシ当量208g/eq)を取得した。
はじめに、本実施例、比較例で用いた原材料をまとめて示す。
・エポキシ樹脂G:ビスフェノールF型エポキシ樹脂(グレード806、三菱化学社製)(エポキシ当量175g/eq)
・エポキシ樹脂H:脂環式エポキシ樹脂(セロキサイド2021P;一般名は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、ダイセル社製)(エポキシ当量137g/eq)
・エポキシ樹脂I:ジシクロペンタジエン型エポキシ樹脂(HP-7200、DIC社製)(エポキシ当量268g/eq)
・液状フェノール系硬化剤A:アリル化フェノールノボラック樹脂(MEH-8000H、明和化成社製)
・液状フェノール系硬化剤B:アルキル化フェノールノボラック樹脂(ELPC75、群栄化学工業社製)
・液状フェノール系硬化剤C:アリル化フェノールレゾール樹脂(ELR、群栄化学工業社製)
・固形フェノール系硬化剤:フェノールノボラック樹脂(TD-2131、DIC社製)・硬化促進剤A:2-メチルイミダゾール(2MZ-H、四国化成社製)
・硬化促進剤B:トリフェニルホスフィン(TPP、東京化成工業社製)
・フィラー:溶融シリカ(SE-E2、アドマテックス社製)
表1に記載した配合量(質量部)の各成分をカップに秤量し、自転公転(ARE-310、シンキー社製)を用いて、室温(25℃)で2000rpmで5分間混合した。その後、室温(25℃)で2200rpmで5分間脱泡することでエポキシ樹脂組成物を調製した。
固形フェノール系硬化剤47質量部をアセトン47質量部に加え、マグネチックスターラーにて、室温(25℃)で30分間攪拌し溶解させた。そこへ、エポキシ樹脂D100質量部、硬化促進剤Bを加え均一に混合した。その後、充分に脱気することでエポキシ樹脂組成物のワニスを調製した。
実施例1~10及び比較例1~3で得られた各エポキシ樹脂組成物を、B型粘度計(英弘精機(株)製)を用いて25℃、回転速度20rpmの条件で粘度を測定した。
実施例1~10及び比較例1~3で得られた各エポキシ樹脂組成物を、25℃の恒温槽内に放置した時の粘度が初期粘度の2倍以上増粘するまでの日数を測定した。
実施例1~10及び比較例1~4で得られた各エポキシ樹脂組成物を、接着部が12.5×25mmの長方形になるように無酸素銅板(JIS C1020P)(サイズ2×25×100mm)に塗布し、もう一枚の無酸素銅板を貼り合わせ、100℃で1時間、120℃で2時間、150℃で2時間、180℃で2時間、200℃で2時間加熱して硬化させ、引張せん断接着試験片とした。
実施例1~10及び比較例1~4で得られた各エポキシ樹脂組成物を樹脂製モールド(厚さ3mm)に流し込み、100℃で1時間、120℃で2時間、150℃で2時間、180℃で2時間、200℃で2時間加熱して硬化させ、次いで、硬化物を幅3mm×長さ80mm×厚さ1mmのサイズに切り出し、誘電率測定用試験片とした。
得られた試験片について、誘電率測定装置(インピーダンスアナライザー、(株)エーイーティー製)を用いて、比誘電率(1GHz)及び誘電正接(1GHz)を測定した。
Claims (12)
- 式(1-iia):
R1は同一又は異なって、炭素数1~18のアルキル基、炭素数2~9のアルケニル基、シクロアルキル基、アリール基又はアラルキル基を示し、これらの基は、一部の炭素原子が、酸素原子及び窒素原子からなる群より選ばれる少なくとも1種の原子で置換されていてもよく、
R2は同一又は異なって、炭素数1~18のアルキレン基を示し、この基は、ケイ素原子に直接結合した炭素原子を除く一部の炭素原子が、酸素原子及び窒素原子からなる群より選ばれる少なくとも1種の原子で置換されていてもよく、
R3は同一又は異なって、炭素数1~18のアルキル基、炭素数2~9のアルケニル基、シクロアルキル基、アリール基又はアラルキル基を示し、これらの基は、一部の炭素原子が、酸素原子及び窒素原子からなる群より選ばれる少なくとも1種の原子で置換されていてもよく、
mは0~6の整数を示し、nは0~3の整数を示す。]
で表されるエポキシ樹脂、
式(1-iiia):
R1、R2、R3、m、及びnは前記に同じ。]
で表されるエポキシ樹脂、並びに
式(1-iva):
R1、R2、R3、m、及びnは前記に同じ。]
で表されるエポキシ樹脂
からなる群より選択される少なくとも1種のエポキシ樹脂と25℃で液状のフェノール系硬化剤とを含有するエポキシ樹脂組成物。 - 前記飽和炭化水素環が炭素数4~8の飽和炭化水素環であり、
前記不飽和炭化水素環が炭素数4~8の不飽和炭化水素環である、
請求項1に記載のエポキシ樹脂組成物。 - 式(1-IIa)で表されるエポキシ樹脂が、
Xiiが、1,4-フェニレン基又は式(2g-iia’):
式(1-IIb)で表されるエポキシ樹脂が、
Xiiが1,4-フェニレン基又は式(2g-iia’):
式(1-IIIa)で表されるエポキシ樹脂が、
Xiiiが
請求項3に記載のエポキシ樹脂組成物。 - 25℃で液状のフェノール系硬化剤が、液状アリルフェノール樹脂、液状プロペニルフェノール樹脂、液状アルキルフェノール樹脂からなる群より選択される少なくとも1種を含有する、請求項1~4のいずれかに記載のエポキシ樹脂組成物。
- さらに無機充填剤としてシリカとアルミナのうち少なくともいずれか一方を含有する、請求項1~6のいずれかに記載のエポキシ樹脂組成物。
- 請求項1~7のいずれかに記載のエポキシ樹脂組成物及び有機溶媒を含むワニス。
- 請求項1~7のいずれかに記載のエポキシ樹脂組成物の硬化物。
- 請求項1~7のいずれかに記載のエポキシ樹脂組成物、請求項8に記載のワニス、又は請求項9に記載の硬化物を備える、半導体封止体、半導体用封止材、液状封止材、アンダーフィル材、ポッティング材、シール材、層間絶縁膜、接着層、カバーレイフィルム、電磁波シールドフィルム、プリント基板材料又は複合材料。
- 半導体封止体、半導体用封止材、液状封止材、アンダーフィル材、ポッティング材、シール材、層間絶縁膜、接着層、カバーレイフィルム、電磁波シールドフィルム、プリント基板材料又は複合材料のための、請求項1~7のいずれかに記載のエポキシ樹脂組成物、請求項8に記載のワニス、又は請求項9に記載の硬化物。
- 半導体封止体、半導体用封止材、液状封止材、アンダーフィル材、ポッティング材、シール材、層間絶縁膜、接着層、カバーレイフィルム、電磁波シールドフィルム、プリント基板材料又は複合材料を製造するための、請求項1~7のいずれかに記載のエポキシ樹脂組成物、請求項8に記載のワニス、又は請求項9に記載の硬化物の使用。
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US11603466B2 (en) | 2017-01-10 | 2023-03-14 | Sumitomo Seika Chemicals Co.. Ltd. | Epoxy resin composition |
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