WO2013140601A1 - ケイ素含有硬化性樹脂組成物 - Google Patents
ケイ素含有硬化性樹脂組成物 Download PDFInfo
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- WO2013140601A1 WO2013140601A1 PCT/JP2012/057504 JP2012057504W WO2013140601A1 WO 2013140601 A1 WO2013140601 A1 WO 2013140601A1 JP 2012057504 W JP2012057504 W JP 2012057504W WO 2013140601 A1 WO2013140601 A1 WO 2013140601A1
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- epoxy
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- siloxane compound
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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
- C08G59/20—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
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/10—Esters; Ether-esters
- C08K5/101—Esters; Ether-esters of monocarboxylic acids
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/17—Amines; Quaternary ammonium compounds
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/54—Silicon-containing compounds
- C08K5/541—Silicon-containing compounds containing oxygen
- C08K5/5435—Silicon-containing compounds containing oxygen containing oxygen in a ring
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/04—Polysiloxanes
- C08G77/14—Polysiloxanes containing silicon bound to oxygen-containing groups
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
Definitions
- the present invention relates to a silicon compound having an epoxy group, a silicon-containing curable resin composition containing an epoxy curing agent or an epoxy curing catalyst, and a cured product thereof.
- a compound having a siloxane skeleton as a repeating unit and having an epoxy group as an organic group is a bisphenol A type epoxy resin which has been conventionally used, (3 ', 4'-epoxycyclohexyl) methyl-3,4-epoxycyclohexane carboxylate, etc.
- Patent Documents 1 to 3 are known to be excellent in flexibility and suitable as a sealing material for optical semiconductor elements such as light emitting diodes and photodiodes (for example, Patent Documents 1 to 3). See 3).
- a cured product obtained from such a compound has the disadvantage of being easily tacky on the surface, and could not be used for surface coating applications.
- Patent Document 4 discloses a cyclic siloxane compound having an epoxy group, a compound in which a cyclic siloxane group having an epoxy group is linked by a linear polysiloxane group, and a cyclic siloxane structure is linear in the ring (
- a composition (see Patent Document 4) containing an epoxy siloxane compound crosslinked with (poly) siloxane group is disclosed, and a cured product obtained from the composition disclosed in Patent Document 4 has an improved surface tack.
- the heat resistance is insufficient, and when used for surface coating, there has been a problem that when used for a long time at a high temperature, cracks easily occur.
- An object of the present invention is to provide a curable composition which has a surface tack, is excellent in heat resistance, and is capable of obtaining a cured film which hardly causes a crack even when used at high temperatures for a long time.
- the present invention is an epoxy siloxane compound having at least two epoxy-containing groups in one molecule as a component (A) and a group represented by the following general formula (1), and 1 to 10 in one molecule as a component (B).
- the object is to provide a silicon-containing curable resin composition comprising an epoxy siloxane compound having a silicon atom and at least two epoxy-containing groups, and an epoxy curable compound as the component (C). Achieved.
- a curable composition capable of obtaining a cured film which has no surface tack, is excellent in heat resistance, and hardly causes cracks even when used at high temperatures for a long time.
- the component (A) of the silicon-containing curable resin composition of the present invention is an epoxy siloxane compound having at least two epoxy-containing groups in one molecule and a group represented by the above general formula (1).
- R 1 to R 4 each represent an alkyl group having 1 to 4 carbon atoms or an aryl group having 6 to 10 carbon atoms which may be the same or different.
- Examples of the alkyl group having 1 to 4 carbon atoms include methyl, ethyl, propyl, isopropyl, butyl, secondary butyl, isobutyl and t-butyl.
- Examples of the aryl group having 6 to 10 carbon atoms include phenyl, ethylphenyl, toluyl, cumenyl, xylyl, pseudocumenyl, mesityl, t-butylphenyl, phenethyl and the like.
- R 1 to R 4 in terms of heat resistance, methyl, ethyl and phenyl are preferable, methyl and phenyl are more preferable, and phenyl is most preferable. From the viewpoint of low viscosity and low crystallization, methyl, ethyl, propyl and butyl are preferred, methyl and ethyl are more preferred, and methyl is most preferred.
- R 1 to R 4 are preferably a combination of methyl and phenyl, and in R 1 to R 4 contained in the group represented by the general formula (1), the ratio of methyl to phenyl is a methyl group
- the molar ratio of phenyl groups is preferably 40:60 to 100: 0, more preferably 60:40 to 97: 3, and most preferably 65:35 to 95: 5.
- a represents a number of 20 to 10,000. When a is less than 20, the heat resistance of the resulting cured product is insufficient, and when it is more than 10000, the viscosity is increased, which causes problems in handling. a is preferably 100 to 5,000, and more preferably 200 to 2,000.
- the component (A) has at least two epoxy-containing groups in one molecule.
- the number of epoxy groups in the component (A) is preferably at least three, and more preferably at least four, from the viewpoint of crack resistance. If the content of the epoxy group in the component (A) is too small, the cured product tends to be tacky, and if too large, the crack resistance decreases, so the epoxy equivalent of the component (A) is It is preferably 500 to 50000, more preferably 700 to 20000, and most preferably 1000 to 10000.
- an epoxy equivalent means the mass (gram number) of the epoxy compound containing an epoxy group of 1 equivalent.
- Examples of the epoxy-containing group of the component (A) include the following formulas (5) to (24), etc., which are excellent in reactivity and easy to industrially obtain raw materials.
- Glycidyl oxypropyl, 2- (3,4-epoxycyclohexyl) ethyl of formula (16), 2- (3,4-epoxy-4-methylcyclohexyl) propyl of formula (17) are preferred, 3-glycidyloxypropyl, More preferred is 2- (3,4-epoxycyclohexyl) ethyl.
- the epoxy-containing group may be directly bonded to the group represented by the general formula (1), but since the number of epoxy-containing groups in the component (A) can be increased, the general formula (A) It is preferable that it couple
- the linking group include an alicyclic hydrocarbon group, an aromatic hydrocarbon group, a group having a heterocycle, a silane group, a linear siloxane group, a cyclic siloxane group and the like, and the heat resistance is improved. Groups are preferred.
- the component (A) is a compound in which an epoxy-containing group is bonded to a group represented by the general formula (1) via a cyclic siloxane group
- the heat resistance is particularly good, and therefore the following general formula (2)
- an epoxy siloxane compound in which a group represented by the following general formula (2) and a group represented by the following general formula (3) are linked by a group represented by the above general formula (1) Is preferred.
- R 5 represents an alkyl group having 1 to 4 carbon atoms or an aryl group having 6 to 10 carbon atoms which may be the same or different.
- groups exemplified for R 1 to R 4 in the general formula (1) can be mentioned.
- R 5 methyl and phenyl are preferable and methyl is most preferable because heat resistance is improved.
- b represents a number of 2 to 5, and b is preferably a number of 2 to 4, more preferably a number of 2 to 3, since industrial raw materials are easily obtained. Is most preferred.
- E 1 represents an epoxy-containing group, and specific examples thereof include the above formulas (5) to (24).
- c represents a number of 2 to 6 where b-c + 1 is a number of 0 to 4, and R 1 , E and a are as defined in the general formula (1).
- An epoxy siloxane compound in which groups represented by General Formula (2) or groups represented by General Formula (2) and a group represented by General Formula (3) are connected by a group represented by General Formula (1) After reacting the SiH group of the cyclic siloxane compound represented by the following general formula (2a) with the vinyl group of the chain siloxane compound represented by the following general formula (1a), carbon further having reactivity with the SiH group It can be obtained by hydrosilylation reaction of an epoxy compound containing a carbon double bond.
- preferred compounds are 2,4,6-trimethylcyclotrisiloxane, 2,4,6-triethylcyclotrisiloxane, 2,4,6-triphenylcyclotrile Siloxane, 2,4-dimethyl-6-phenylcyclotrisiloxane, 2,4,6,8-tetramethylcyclotrisiloxane, 2,4,6,8-tetraethylcyclotetrasiloxane, 2,4,6,8- Tetraphenylcyclotetrasiloxane, 2,4,6-trimethyl-8-phenylcyclotetrasiloxane, 2,4-dimethyl-6,8-diphenylcyclotetrasiloxane, 2,4,6,8,10-pentamethylcyclopentan A siloxane etc. are mentioned.
- the hydrosilylation reaction between the chain siloxane compound represented by the general formula (1a) and the cyclic siloxane compound represented by the general formula (2a) is preferably performed using a catalyst, and as the hydrosilylation catalyst, for example, a platinum-based catalyst A catalyst, a palladium type catalyst, a rhodium type catalyst etc. are mentioned.
- platinum catalysts include chloroplatinic acid, complexes of chloroplatinic acid and alcohols, aldehydes, ketones, etc., platinum-olefin complexes, platinum-carbonylvinylmethyl complexes (Ossko catalyst), platinum-divinyltetramethyldisiloxane complexes.
- platinum - cyclovinylmethylsiloxane complex platinum - cyclovinylmethylsiloxane complex, a platinum - octyl aldehyde complexes, platinum - phosphine complex (e.g., Pt [P (C 6 H 5) 3] 4, PtCl [P (C 6 H 5) 3] 3 , Pt [P (C 4 H 9 ) 3 ) 4 ], platinum-phosphite complex (eg Pt [P (OC 6 H 5 ) 3 ] 4 ), Pt [P (OC 4 H 9 ) 3 ] 4 And dicarbonyldichloroplatinum.
- platinum phosphine complex e.g., Pt [P (C 6 H 5) 3] 4, PtCl [P (C 6 H 5) 3] 3 , Pt [P (C 4 H 9 ) 3 ) 4
- platinum-phosphite complex eg Pt [P (OC 6 H 5
- the hydrosilylation catalyst is preferably a platinum-based catalyst from the viewpoint of reactivity, more preferably a platinum-divinyltetramethyldisiloxane complex and a platinum-carbonylvinylmethyl complex, and most preferably a platinum-carbonylvinylmethyl complex.
- the amount of the catalyst used is preferably 5% by mass or less, more preferably 0.0001 to 1.0% by mass, and most preferably 0.001 to 0.1% by mass from the viewpoint of reactivity. preferable.
- the reaction conditions for the hydrosilylation are not particularly limited, and the reaction may be carried out under the conventionally known conditions using the above-mentioned catalyst, but from the viewpoint of the reaction rate, it is preferably carried out at room temperature (25 ° C) to 130 ° C. Conventional solvents such as hexane, methyl isobutyl ketone, cyclopentanone, propylene glycol monomethyl ether acetate and the like may be used.
- the hydrosilylation reaction of may be carried out under the same conditions as the hydrosilylation reaction of the linear siloxane compound represented by the general formula (1a) and the cyclic siloxane compound represented by the general formula (2a), and after this hydrosilylation reaction Preferably, the reaction product is subsequently reacted without isolation and purification.
- Examples of the epoxy compound containing a carbon-carbon double bond having reactivity with an SiH group include compounds of the following formulas (5a) to (20a) and (22a) to (24a).
- the epoxy-containing groups of the above formulas (5) to (20) and (22) to (24) can be introduced by using such compounds.
- the component (B) of the silicon-containing curable resin composition of the present invention is an epoxy siloxane compound having 1 to 10 silicon atoms and at least two epoxy-containing groups in one molecule.
- a compound represented by the following general formula (4) is preferable because heat resistance is improved.
- Examples of the component (B) further include compounds represented by the following general formulas (25) to (27).
- E 2 represents an epoxy-containing group.
- examples of the epoxy-containing group include the aforementioned formulas (5) to (24).
- the epoxy-containing group of the component (B) is preferably the same as the epoxy-containing group of the component (A) in order to equalize the reactivity with the epoxy-containing group of the component (A).
- R 6 represents an alkyl group having 1 to 4 carbon atoms or an aryl group having 6 to 10 carbon atoms which may be the same or different.
- groups exemplified for R 1 to R 4 in the general formula (1) can be mentioned.
- R 5 methyl and phenyl are preferable and methyl is most preferable because heat resistance is improved.
- d represents a number of 3 to 6 and d is preferably a number of 3 to 5, more preferably 3 to 4, and most preferably 4 because industrial availability of the raw material is easy.
- R 7 to R 9 each independently represent an alkyl group having 1 to 4 carbon atoms or an aryl group having 6 to 10 carbon atoms.
- groups exemplified for R 1 to R 4 in the general formula (1) can be mentioned.
- R 5 methyl and phenyl are preferable and methyl is most preferable because heat resistance is improved.
- e represents a number of 1 to 3
- f and g each independently represent a number of 0 to 6.
- the total of silicon atoms is a number of 1-10.
- e is preferably a number of 2 to 3.
- f and g are preferably a number of 0 to 2, more preferably a number of 0 to 1.
- each of R 10 to R 12 independently represents an alkyl group having 1 to 4 carbon atoms or an aryl group having 6 to 10 carbon atoms.
- groups exemplified for R 1 to R 4 in the general formula (1) can be mentioned.
- R 5 methyl and phenyl are preferable and methyl is most preferable because heat resistance is improved.
- h represents a number of 0 to 8, and in view of improving the heat resistance of the cured product, the number of 0 to 3 is preferable, the number of 0 to 1 is more preferable, and 0 is most preferable.
- R 13 and R 14 each independently represent an alkyl group having 1 to 4 carbon atoms or an aryl group having 6 to 10 carbon atoms.
- alkyl group having 1 to 4 carbon atoms and the aryl group having 6 to 10 carbon atoms groups exemplified for R 1 to R 4 in the general formula (1) can be mentioned.
- R 5 methyl and phenyl are preferable and methyl is most preferable because heat resistance is improved.
- the compounds represented by the general formulas (4) and (25) to (27) have reactivity with the SiH group of the compounds represented by the following general formulas (4a) and (25a) to (27a), respectively.
- the hydrosilylation reaction can be obtained by hydrosilylation reaction of an epoxy compound containing a carbon-carbon double bond having the following formula, and the hydrosilylation reaction is represented by the chain siloxane compound represented by the general formula (1a) and the general formula (2a) The reaction may be carried out under the same conditions as the hydrosilylation reaction with the cyclic siloxane compound.
- Examples of the epoxy compound containing a carbon-carbon double bond having reactivity with a SiH group include compounds of formulas (5a) to (20a) and (22a) to (24a), and such compounds
- the epoxy-containing groups of formulas (5) to (20) and (22) to (24) can be introduced respectively by using
- the cured product when the ratio of the component (B) to the component (A) is too small, the cured product is too soft and tackiness tends to occur on the surface, and when too large, the cured product
- the content of the component (B) is preferably 3 to 50 parts by mass with respect to 100 parts by mass in total of the components (A) and (B), since the heat resistance of More preferably, it is part by weight, and most preferably 7 to 35 parts by weight.
- the component (C) of the silicon-containing curable resin composition of the present invention is an epoxy curable compound.
- Epoxy curing compounds include epoxy curing agents and epoxy curing catalysts.
- an epoxy curing agent is a compound capable of curing an epoxy composition by reacting with an epoxy group, and an epoxy curing catalyst causes epoxy to react with each other by the action of heat or energy ray.
- epoxy curing agents include phenol type curing agents such as phenol novolac resin, bisphenol novolac resin, poly p-vinylphenol, etc .; diethylenetriamine, triethylenetetramine, tetraethylenepentamine, dicyandiamide, polyamidoamine (polyamide resin), ketimine compound , Isophorone diamine, m-xylene diamine, m-phenylene diamine, 1,3-bis (aminomethyl) cyclohexane, N-aminoethyl piperazine, 4,4'-diaminodiphenylmethane, 4,4'-diamino-3,3 ' Polyamine curing agents such as diethyldiphenylmethane and diaminodiphenyl sulfone; Phthalic anhydride, tetrahydrophthalic anhydride, methyltetrahydrophthalic anhydride, methyl hexahydrophthalic anhydride,
- the amount of the epoxy curing agent used is the epoxy contained in components (A) and (B).
- the amount of the epoxy reactive group contained in the epoxy curing agent is preferably 0.4 to 1.2 mol, and more preferably 0.5 to 0.9 mol with respect to 1 mol of the group.
- the amount of the epoxy curing agent used is 10 to 100 parts by weight based on the total amount of components (A) and (B) from the viewpoint of securing the effect of the present invention. 50 parts by mass is preferable, and 15 to 40 parts by mass is more preferable.
- an epoxy curing catalyst of a type that generates an acidic substance is preferable because the reaction proceeds at a relatively low temperature, and among them, organic onium salt curing is due to good storage stability and reactivity. Catalysts are further preferred.
- the organic onium salt-based curing catalyst include diazonium salt-based catalysts, iodonium salt-based catalysts, sulfonium salt catalysts, etc. These may be heat-curable or energy-curable. Generally, aliphatic onium salts are used for heat curing, and aromatic onium salts are used for energy curing.
- An organic onium salt-based curing catalyst can obtain good curing with a small amount used, and when curing is performed by energy rays, as the component (C), compatibility with the component (A) is good.
- Aromatic iodonium salts and aromatic sulfonium salts are preferred.
- an aliphatic sulfonium salt is preferable as the component (C) because the compatibility with the component (A) is good.
- the aromatic iodonium salt refers to an iodonium salt in which at least one of the substituents of iodonium is an aryl group.
- aromatic iodonium salt 4-isopropoxy-4'-methyldiphenyliodonium tetrakispentafluorophenyl borate, 4-isopropoxy-4'-methyldiphenyliodonium hexafluorophosphate, 4-isopropoxy-4'-methyldiphenyliodonium Hexafluoroantimonate, (trilkamyl) iodonium hexafluorophosphate, (trilkamyl) iodonium hexafluoroantimonate, (trilkamyl) iodonium tetrakis pentafluorophenyl borate, bis (tertiary butyl phenyl) iodonium hexafluoro phosphate, bis (terti
- the aromatic sulfonium salt refers to a sulfonium salt in which at least one group of sulfonium substituents is an aryl group.
- aromatic sulfonium salt 4,4′-bis [di (4-heptoxyphenyl) sulfoniophenyl] sulfide bishexafluoroantimonate, 4,4′-bis [di (4-heptoxyphenyl) sulfonioone Phenyl] sulfide bishexafluorophosphate, 4- (4-benzoyl-phenylthio) phenyl-di- (4-fluorophenyl) sulfonium hexafluorophosphate, 4,4'-bis [bis (( ⁇ -hydroxyethoxy) phenyl) sulfonioone ] Phenyl sulfide bishexafluorophosphate, 4,4'-bis [bis (( ⁇ -hydroxyeth
- the aliphatic sulfonium salt refers to a sulfonium salt which is an aliphatic hydrocarbon having all of the substituents of sulfonium having an aliphatic hydrocarbon group or a substituent.
- aliphatic sulfonium salts include dimethylbenzylsulfonium hexafluoroantimonate, tribenzylsulfonium hexafluoroantimonate, dimethylphenacylsulfonium hexafluoroantimonate, (3-methyl-2-butenyl) dimethylsulfonium hexafluoroantimonate, and benzyltetrahydrofuran Thiophenium hexafluoroantimonate, cinnamyl dimethyl sulfonium hexafluoroantimonate, 1- ( ⁇ -naphthylmethyl) tetrahydrothiophenium hexafluoroantimonate, 1- ( ⁇ -naphthylmethyl) tetrahydrothiophenium hexafluorophosphate 1- (cinnamyl) tetrahydrothiophenium hexafluoroantimonate, 1- (cin
- the content of the epoxy curing catalyst is preferably 0.01 to 5 parts by mass with respect to 100 parts by mass of the total amount of the components (A) and (B), and 0.05 It is further more preferable that the amount is -3 parts by mass, and most preferably 0.1 to 1 parts by mass.
- the silicon-containing curable resin composition of the present invention can be cured by heat curing, photo curing, or both light and heat as the type of curing by appropriately selecting the type of the epoxy curable compound of component (C). You can choose.
- the curing temperature in the case of heat curing is preferably 60 to 200 ° C., and more preferably 80 to 150 ° C.
- the curing time is preferably 0.1 to 10 hours, more preferably 1 to 6 hours.
- usable active energy rays include ultraviolet rays, electron beams, X-rays, radiation, high frequencies and the like, and ultraviolet rays are economically most preferable.
- the ultraviolet light source examples include an ultraviolet laser, a mercury lamp, a high pressure mercury lamp, a xenon lamp, a sodium lamp, and an alkali metal lamp.
- a high pressure mercury lamp is preferable.
- the irradiation energy is usually in the range of 100 to 10000 mJ / cm 2 , although the optimum condition varies depending on the applied film thickness.
- heating may usually be performed in the range of 60 to 150 ° C.
- the silicon-containing curable resin composition of the present invention is not limited to the performance of the silicon-containing curable resin composition of the present invention, and other epoxy compounds, curing accelerators, sensitizers, metal oxide fine powder, weather resistance It may contain any additive such as a modifier. However, when the additives other than the metal oxide fine powder are contained, the total amount of the components (A), (B) and (C) is, from the viewpoint of securing the effect of the present invention, It is preferable to contain in the range used as 90 mass% or more with respect to the quantity except the content of metal oxide fine powder from the silicon-containing curable resin composition of this invention.
- the other epoxy resin is a compound having at least one epoxy group in the molecule, and refers to a compound other than the component (A) and the component (B) according to the present invention.
- Other preferred epoxy resins include 2,2-bis (3,4-epoxycyclohexyl) propane, 3,4-epoxycyclohexylmethyl (3,4-epoxy) cyclohexanecarboxylate, 2- (3,4-epoxy) Cyclohexyl-5,1-spiro (3,4-epoxy) cyclohexyl-m-dioxane, bis [(3,4-epoxycyclohexyl) methyl] adipate, 6- (3,4-epoxycyclohexanecarbonyloxy) hexanoic acid (3) Alicyclic epoxy compounds such as 4, 4-epoxycyclohexyl) methyl ester; Diglycidyl ether of bisphenol A, diglycidyl ether of bisferl F,
- the epoxy equivalent is preferably 100 to 600. If the amount of the other epoxy compound is too large, the heat resistance of the resulting cured product may decrease. Therefore, 1 part per 100 parts by mass of the total of (A) component and (B) component -30 parts by mass is preferable, and 1 to 20 parts by mass is more preferable.
- the component (C) is an epoxy curing agent, the total content of the epoxy group of the component (A), the component (B) and the other epoxy compound is adjusted. In the case of an epoxy curing catalyst, it is preferable to appropriately change the amount of the component (C) in accordance with the total content of the component (A), the component (B) and the other epoxy compound.
- the curing accelerator is a compound for accelerating the reaction between the epoxy group and the epoxy curing agent, and in particular, when the epoxy curing agent is a phenolic curing agent or a polycarboxylic acid curing agent, it may be blended. preferable.
- 1,8-diaza-bicyclo [5.4.0] undecene-7 triethylenediamine, benzyldimethylamine, triethanolamine, dimethylaminoethanol, tris (dimethylaminomethyl) phenol and the like Tertiary amines and salts thereof; imidazoles such as 2-methylimidazole, 2-phenylimidazole, 2-phenyl-4-methylimidazole, 2-heptadecylimidazole; tributyl phosphine, methyl diphenyl phosphine, triphenyl phosphine, diphenyl phosphine Organic phosphines such as phenyl phosphine; tetraphenylphosphonium tetraphenylboric acid, 2-ethyl-4-methylimidazole tetraphenylboric acid, N-methylmorpholine tetraphenylboric acid And te
- the sensitizer is a compound capable of expanding the applicable wavelength range of energy rays when curing with energy rays.
- Examples of sensitizers include benzophenone, 3-hydroxybenzophenone, 4-hydroxybenzophenone, 4,4-dihydroxybenzophenone, 2-methylbenzophenone, 3-methylbenzophenone, 4-methylbenzophenone, 2,5-dimethylbenzophenone, and the like.
- Benzophenones such as 2,4-dimethylbenzophenone, 4-methoxybenzophenone, 4,4-dimethoxybenzophenone, 3,3-dimethyl-4-methoxybenzophenone, 4-phenylbenzophenone, acetophenone, 4-methoxyacetophenone, 2,4-dimethoxyphenone Acetophenone, 2,5-dimethoxyacetophenone, 2,6-dimethoxyacetophenone, 4,4-dimethoxyacetophenone, 4-ethoxyacetophenone, diethoxyacetophenone Acetophenones such as 2, 2-diethoxyacetophenone, 2-ethoxy-2-phenylacetophenone, 4-phenylacetophenone, anthraquinone, hydroxyanthraquinone, 1-nitroanthraquinone, aminoanthraquinone, 2-chloroanthraquinone, 2-methylanthraquinone, 2 -Anthraquinones such
- inorganic materials such as a mineral
- metal oxides such as aluminum oxide, zinc oxide, titanium oxide
- Minerals such as feldspar powder, vermiculite, attapulgite, talc, minnesite, pyrophyllite and the like may be mentioned, and these may be modified by organic modification treatment or the like.
- silicon dioxides are preferable.
- the particle diameter of the metal oxide fine particles is preferably 100 ⁇ m or less, and more preferably 50 ⁇ m or less.
- the compounding amount of the metal oxide fine particles is preferably 0.1 to 80% by mass, and more preferably 0.5 to 70% by mass in the silicon-containing curable resin composition of the present invention.
- weather resistance imparting agent those generally used in general such as light stabilizers, ultraviolet light absorbers, phenolic antioxidants, sulfur antioxidants, phosphorus antioxidants and the like can be used.
- light stabilizers include hindered amines
- ultraviolet light absorbers include 2-hydroxybenzophenones, 2- (2-hydroxyphenyl) benzotriazoles, 2- (2-hydroxyphenyl) -4,6- Diaryl-1,3,5-triazines, benzoates and cyanoacrylates are mentioned, and as a phenolic antioxidant, triethylene glycol-bis [3- (3-t-butyl-5-methyl-4-hydroxy] is mentioned.
- Phenyl) propionate dibutylhydroxytoluene (BHT), 2,6-di-t-butyl-paracresol (DBPC), etc.
- sulfur-based antioxidants such as dialkylthiodipropionates, ⁇ -alkyl Mercapto propionic acid esters are mentioned, As phosphorus system antioxidant, Machine phosphites, and the like.
- the content thereof is 0 in the silicon-containing curable resin composition of the present invention from the viewpoint of heat resistance, electrical properties, curability, mechanical properties, storage stability, and handling properties. .0001 to 50% by mass is preferable, and 0.001 to 10% by mass is more preferable.
- the silicon-containing curable resin composition of the present invention has good fluidity at room temperature (25 ° C.) and is excellent in handleability. With respect to fluidity, it is preferable that the viscosity measured with an E-type viscometer at room temperature (25 ° C.) in a state not containing the metal oxide fine powder is 50 Pa ⁇ s or less, more preferably 10 Pa ⁇ s or less preferable.
- the cured product obtained from the silicon-containing curable resin composition of the present invention has transparency, crack resistance, heat resistance, solvent resistance, alkali resistance, weather resistance, contamination resistance, flame resistance, moisture resistance, gas barrier resistance. It is excellent in flexibility, elongation and strength, mechanical properties such as electrical insulation and low dielectric constant, optical properties, electrical properties and the like, and in particular, the surface tack is small and the heat resistance is excellent. Therefore, the silicon-containing curable resin composition of the present invention is a sealing material for display materials, optical materials, recording materials, semiconductors, etc.
- high voltage insulating materials, insulation, vibration reduction, water resistance, moisture resistance And sealing materials for plastic parts prototypes of plastic parts, coating materials, interlayer insulation films, packing for insulation, optical waveguides, optical fiber protective materials, optical lenses, adhesives for optical devices, high heat resistant adhesives, high It can be applied to heat dissipating materials, high heat resistant sealing materials, members for solar cells and fuel cells, insulation covering materials, photosensitive drums for copying machines, etc., and in particular, it can be suitably used as a coating material.
- Production Example 1 Chain-Like Siloxane Compound a-1
- 130 g of ion exchanged water, 550 g of a 48% aqueous sodium hydroxide solution and 100 g of toluene as a solvent are charged with 129 g (1 mol) of dimethyldichlorosilane at 30 ° C. or less while stirring.
- the solution was added dropwise over time, and after completion of the dropwise addition, stirring was continued at 105 ° C. for 5 hours.
- the reaction solution obtained was washed with 500 g of ion-exchanged water to remove purified sodium chloride, and then the solvent was evaporated under reduced pressure at 60 ° C.
- Preparation Example 2 Chain-Like Siloxane Compound a-2
- a mixture of 116 g (0.9 mol) of dimethyldichlorosilane and 25.3 g (0.1 mol) of diphenyldichlorosilane is used instead of 129 g (1 mol) of dimethyldichlorosilane in Production Example 1.
- the procedure was repeated to obtain a linear siloxane compound a-2 having vinyl groups at both ends.
- R 1 to R 2 are a methyl group
- the mass average molecular weight by GPC was 20000 (a corresponds to 230).
- Preparation Example 3 Chain-Like Siloxane Compound a-3
- Preparation Example 1 a mixture of 90.3 g (0.7 mol) of dimethyldichlorosilane and 75.9 g (0.3 mol) of diphenyldichlorosilane was used instead of 129 g (1 mol) of dimethyldichlorosilane. The same operation was performed to obtain a linear siloxane compound a-3 having a vinyl group at both ends.
- R 1 to R 2 are a methyl group
- the mass average molecular weight by GPC was 10000 (a corresponds to 88).
- the high molecular weight epoxy siloxane compound A-1 is an epoxy siloxane compound in which groups represented by the general formula (2) are connected by a group represented by the general formula (1), and in the general formula (1), R 1 to It is a compound in which R 4 is a methyl group, a is 538, R 5 is a methyl group, E 1 is 3-glycidyloxypropyl, and b is 3 in the general formula (2).
- the epoxy equivalent of the high molecular weight epoxy siloxane compound A-1 was 6700.
- the epoxy equivalent of the high molecular weight epoxy siloxane compound A-2 was 3400.
- the epoxy equivalent of the high molecular weight epoxy siloxane compound A-2 was 1600.
- Preparation Example 7 High Molecular Weight Epoxy Siloxane Compound A-4
- 0.99 g (8 mmol) of 1,2-epoxy-4-vinylcyclohexane is used instead of 0.92 g (8 mmol) of allyl glycidyl ether in Production Example 4, and the high molecular weight is obtained.
- An epoxy siloxane compound A-4 was obtained.
- the high molecular weight epoxy siloxane compound A-4 is an epoxy siloxane compound in which groups represented by the general formula (2) are connected by a group represented by the general formula (1), and in the general formula (1), R 1 to It is a compound in which R 4 is a methyl group, a is 538, R 5 is a methyl group, E 1 is 2- (3,4-epoxycyclohexyl) ethyl, and b is 3 in the general formula (2).
- the epoxy equivalent of the high molecular weight epoxy siloxane compound A-4 was 6700.
- the epoxy equivalent of the high molecular weight epoxy siloxane compound A-5 was 3400.
- the high molecular weight epoxy siloxane compound A-6 is an epoxy siloxane compound in which groups represented by the general formula (2) are linked by a group represented by the general formula (1), a group represented by the general formula (2) and the following It is a mixture of an epoxy siloxane compound in which a group represented by the general formula (3) is connected by a group represented by the general formula (1), and in the general formula (1), R 1 to R 2 are methyl groups, R 3 To R 4 each represents a mixture of methyl and phenyl (methyl: phenyl: 9: 1), a is 230, and in the general formulas (2) and (3), R 5 is methyl, E It is a compound in which 1 is 3-glycidyloxypropyl and b is 3.
- Preparation Example 10 Low Molecular Weight Epoxy Siloxane Compound B-1
- 48 g (0.2 mol) of 2,4,6,8-tetramethylcyclotetrasiloxane, 114 g (1 mol) of allyl glycidyl ether, platinum-divinyl tetramethyl disiloxane complex 10 mg of Karstedt catalyst and 200 g of toluene as a solvent were charged and reacted at 105 ° C. for 3 hours while stirring. Thereafter, unreacted allyl glycidyl ether and the solvent were removed under reduced pressure at 100 ° C.
- the low molecular weight epoxy siloxane compound B-1 is a compound in which R 6 is a methyl group, E 2 is 3-glycidyloxypropyl, and d is 4 in the general formula (4), and the epoxy equivalent is 174.
- Preparation Example 11 Low Molecular Weight Epoxy Siloxane Compound B-2
- a low molecular weight epoxy siloxane compound B is carried out in the same manner as in Preparation Example 10 except that in Preparation Example 10, 124 g (1 mole) of 1,2-epoxy-4-vinylcyclohexane is used instead of 114 g (1 mol) of allyl glycidyl ether. I got -2.
- the low molecular weight epoxy siloxane compound B-2 is a compound in which R 6 is a methyl group, E 2 is 2- (3,4-epoxycyclohexyl) ethyl, d is 4 in the general formula (4), and the epoxy equivalent is It was 184.
- Preparation Example 12 Low Molecular Weight Epoxy Siloxane Compound B-3 Production Example 10 is the same as Production Example 10 except that 65.6 g (0.2 mol) of tetrakis (dimethylsiloxy) silane is used instead of 48 g (0.2 mol) of 2,4,6,8-tetramethylcyclotetrasiloxane. The same operation was performed to obtain a low molecular weight epoxy siloxane compound B-3.
- the low molecular weight epoxy siloxane compound B-3 is a compound represented by the general formula (25), wherein R 8 to R 9 are methyl groups, E 2 is 3-glycidyloxypropyl, e is 3, f and g are 1. The epoxy equivalent was 226.
- Examples 1 to 23, Comparative Examples 1 to 28 (A) high molecular weight epoxy siloxane compound A-1 to 5 as component, low molecular weight epoxy siloxane compound B-1 to 3 as component (B), the following compounds C-1 to 3 as component (C), composition for comparison D-1 to 2 and the following compound D-3, and the following compound E-1 as a curing accelerator, were mixed in the formulations shown in Tables 1 and 2 below to obtain Examples 1 to 23 and Comparative Examples 1 to 28.
- a silicon-containing curable resin composition was prepared. Test pieces were prepared according to the following ⁇ Preparation of test pieces> using the obtained silicon-containing curable resin composition.
- Component C-1 As an epoxy curing catalyst (photo curing catalyst), 4- (2-chloro-4-benzoylphenylthio) phenylbis (4-chlorophenyl) sulfonium hexafluoroantimonate
- C-2 epoxy curing catalyst 1- (cinnamyl) tetrahydrothiophenium hexafluoroantimonate as a thermosetting catalyst
- C-3 methyl hexahydrophthalic anhydride as an epoxy curing agent
- Hardening accelerator E-1 diazabicyclo undecen octoate
- test piece> The silicon-containing curable resin compositions of Examples 1 to 23 and Comparative Examples 1 to 28 were each applied to a square glass substrate 50 mm long, 50 mm wide, and 1 mm thick so as to have a film thickness of 20 ⁇ m. Test pieces of Examples 1 to 23 and Comparative Examples 1 to 28 were obtained by photocuring or heat curing under the conditions.
- a glass substrate coated with the silicon-containing curable resin composition of Examples 1 to 14 or Comparative Examples 1 to 15 is irradiated with ultraviolet light at 10 mJ / cm 2 (converted to a wavelength of 365 nm exposure) using a high pressure mercury lamp, and then 120 ° C. It was cured by post-baking for 10 minutes in a thermostat bath.
- Thermal curing conditions The glass substrate coated with the silicon-containing curable resin composition of Examples 15-23 or Comparative Examples 16-28 was cured by heating in a thermostat at 120 ° C. for 1 hour and then at 150 ° C. for 2 hours.
- the following dust adhesion test and heat resistance adhesion test were performed using the obtained test pieces.
- the test piece was placed in a container containing powdered silica gel (manufactured by Wako Pure Chemical Industries, Ltd., trade name: Wakogel C-100) until the whole was buried. After pulling up the test piece from the container, it was dropped three times on a glass plate from a height of 10 cm so that the cured surface was vertical. After this, the transmittance of light of 800 nm of the test piece was measured. The results are shown in Tables 1 and 2. The lower the transmittance, the more the surface tack is. In addition, the transmittance
- Test piece was placed in a constant temperature bath at 200 ° C., and the test piece was observed microscopically every 30 days up to 120 days, and peeling of the cured product and occurrence of cracks were examined.
- Tables 1 and 2 show the number of days for which peeling and cracking were found for the first time. In addition, it was considered as 120 days or more that peeling and a crack were not seen even after 120 days progress.
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Description
一般式(1)において、R1~R4は同一でも異なっていてもよい炭素数1~4のアルキル基又は炭素数6~10のアリール基を表わす。炭素原子数1~4のアルキル基としては、例えば、メチル、エチル、プロピル、イソプロピル、ブチル、2級ブチル、イソブチル、t-ブチル等が挙げられる。炭素数6~10のアリール基としては、例えば、フェニル、エチルフェニル、トルイル、クメニル、キシリル、プソイドクメニル、メシチル、t-ブチルフェニル、フェネチル等が挙げられる。R1~R4としては、耐熱性の点からは、メチル、エチル、フェニルが好ましく、メチル、フェニルが更に好ましく、フェニルが最も好ましい。粘度が低く、結晶化が起こりにくいという点からは、メチル、エチル、プロピル、ブチルが好ましく、メチル、エチルが更に好ましく、メチルが最も好ましい。このため、R1~R4は、メチルとフェニルの組合せであることが好ましく、一般式(1)で表わされる基に含まれるR1~R4において、メチルとフェニルの割合は、メチル基とフェニル基の比がモル比で40:60~100:0であることが好ましく、60:40~97:3であることが更に好ましく、65:35~95:5であることが最も好ましい。
尚、特に断りのない限り、実施例中の「部」や「%」は質量基準によるものである。また、質量平均分子量は、テトラヒドロフランを溶媒としてGPC(Gel Permeation Chromatography)分析を行った場合のポリスチレン換算の質量平均分子量とした。また、エポキシ当量は、JIS K-7236(エポキシ樹脂の求め方)に準拠して測定した。
温度計、攪拌装置を備えたガラス製反応容器に、イオン交換水130g、48%水酸化ナトリウム水溶液550g及び溶剤としてトルエン100gを仕込み、撹拌しながら30℃以下でジメチルジクロロシラン129g(1mol)を1時間かけて滴下し、滴下終了後、更に105℃で5時間撹拌を続けた。得られた反応溶液をイオン交換水500gで水洗して精製した食塩を除去した後、60℃で溶媒を減圧留去した。この反応物にピリジン63g(0.8mol)を加えて溶解した、ジメチルビニルクロロシラン12.1g(0.1mol)を加えて70℃で30分間攪拌した。その後、イオン交換水100gで水洗した後、100℃で溶媒を減圧留去し、両端にビニル基を有する鎖状シロキサン化合物a-1を得た。鎖状シロキサン化合物a-1は一般式(1a)において、R1~R4がメチル基であり、GPCによる質量平均分子量は40000(aが538に相当する)であった。
製造例1においてジメチルジクロロシラン129g(1mol)の代わりに、ジメチルジクロロシラン116g(0.9mol)及びジフェニルジクロロシラン25.3g(0.1mol)の混合物を使用した以外は、製造例1と同様の操作を行い両端にビニル基を有する鎖状シロキサン化合物a-2を得た。鎖状シロキサン化合物a-3は一般式(1a)において、R1~R2がメチル基であり、R3~R4がメチル基とフェニル基の混合(メチル基:フェニル基=9:1)であり、GPCによる質量平均分子量は20000(aが230に相当する)であった。
製造例1においてジメチルジクロロシラン129g(1mol)の代わりに、ジメチルジクロロシラン90.3g(0.7mol)及びジフェニルジクロロシラン75.9g(0.3mol)の混合物を使用した以外は、製造例1と同様の操作を行い両端にビニル基を有する鎖状シロキサン化合物a-3を得た。鎖状シロキサン化合物a-3は一般式(1a)において、R1~R2がメチル基であり、R3~R4がメチル基とフェニル基の混合(メチル基:フェニル基=7:3)であり、GPCによる質量平均分子量は10000(aが88に相当する)であった。
温度計、攪拌装置を備えたガラス製反応容器に、鎖状シロキサン化合物a-1を40g(1mmol)、2,4,6,8-テトラメチルシクロテトラシロキサン1.44g(6mmol)、白金-ジビニルテトラメチルジシロキサン錯体(Karstedt触媒)10mg及び溶剤としてトルエン50gを仕込み、攪拌しながら105℃で2時間反応させた。80℃で未反応の2,4,6,8-テトラメチルシクロテトラシロキサンと溶媒を減圧留去した後、アリルグリシジルエーテル0.92g(8mmol)及び溶剤としてトルエン50gを仕込み、攪拌しながら105℃で3時間反応させた。反応終了後、80℃で未反応のアリルグリシジルエーテルと溶媒を減圧留去し高分子量エポキシシロキサン化合物A-1を得た。高分子量エポキシシロキサン化合物A-1は、一般式(2)で表わされる基同士が一般式(1)で表わされる基で連結されたエポキシシロキサン化合物であり、一般式(1)において、R1~R4がメチル基、aが538であり、一般式(2)においてR5がメチル基、E1が3-グリシジロキシプロピル、bが3である化合物である。また、高分子量エポキシシロキサン化合物A-1のエポキシ当量は6700であった。
製造例4において、鎖状シロキサン化合物a-1を40g(1mmol)の代わりに、鎖状シロキサン化合物a-2を20g(1mmol)使用した以外は製造例4と同様の操作を行い、高分子量エポキシシロキサン化合物A-2を得た。高分子量エポキシシロキサン化合物A-2は、一般式(2)で表わされる基同士が一般式(1)で表わされる基で連結されたエポキシシロキサン化合物であり、一般式(1)において、R1~R2がメチル基、R3~R4がメチル基とフェニル基の混合(メチル基:フェニル基=9:1)であり、aが230であり、一般式(2)においてR5がメチル基、E1が3-グリシジロキシプロピル、bが3である化合物である。また、高分子量エポキシシロキサン化合物A-2のエポキシ当量は3400であった。
製造例4において、鎖状シロキサン化合物a-1を40g(1mmol)の代わりに、鎖状シロキサン化合物a-3を10g(1mmol)使用した以外は製造例4と同様の操作を行い、高分子量エポキシシロキサン化合物A-3を得た。高分子量エポキシシロキサン化合物A-3は、一般式(2)で表わされる基同士が一般式(1)で表わされる基で連結されたエポキシシロキサン化合物であり、一般式(1)において、R1~R2がメチル基、R3~R4がメチル基とフェニル基の混合(メチル基:フェニル基=7:3)であり、aが88であり、一般式(2)においてR5がメチル基、E1が3-グリシジロキシプロピル、bが3である化合物である。また、高分子量エポキシシロキサン化合物A-2のエポキシ当量は1600であった。
製造例4において、アリルグリシジルエーテル0.92g(8mmol)の代わりに1,2-エポキシ-4-ビニルシクロヘキサン0.99g(8mmol)を使用した以外は製造例4と同様の操作を行い、高分子量エポキシシロキサン化合物A-4を得た。高分子量エポキシシロキサン化合物A-4は、一般式(2)で表わされる基同士が一般式(1)で表わされる基で連結されたエポキシシロキサン化合物であり、一般式(1)において、R1~R4がメチル基、aが538であり、一般式(2)においてR5がメチル基、E1が2-(3,4-エポキシシクロヘキシル)エチル、bが3である化合物である。また、高分子量エポキシシロキサン化合物A-4のエポキシ当量は6700であった。
製造例4において、鎖状シロキサン化合物a-1を40g(1mmol)の代わりに、鎖状シロキサン化合物a-2を20g(1mmol)、アリルグリシジルエーテル0.92g(8mmol)の代わりに1,2-エポキシ-4-ビニルシクロヘキサン0.99g(8mmol)を使用した以外は製造例4と同様の操作を行い、高分子量エポキシシロキサン化合物A-5を得た。高分子量エポキシシロキサン化合物A-5は、一般式(2)で表わされる基同士が一般式(1)で表わされる基で連結されたエポキシシロキサン化合物であり、一般式(1)において、R1~R2がメチル基、R3~R4がメチル基とフェニル基の混合(メチル基:フェニル基=9:1)であり、aが230であり、一般式(2)においてR5がメチル基、E1が2-(3,4-エポキシシクロヘキシル)エチル、bが3である化合物である。また、高分子量エポキシシロキサン化合物A-5のエポキシ当量は3400であった。
温度計、攪拌装置を備えたガラス製反応容器に、鎖状シロキサン化合物a-2を16g(0.8mmol)、2,4,6,8-テトラメチルシクロテトラシロキサン0.144g(0.6mmol)、白金-ジビニルテトラメチルジシロキサン錯体(Karstedt触媒)10mg及び溶剤としてトルエン50gを仕込み、攪拌しながら105℃で2時間反応させ、アリルグリシジルエーテル0.92(8mmol)を添加して、更に105℃で3時間反応させた。反応終了後、80℃で未反応のアリルグリシジルエーテルと溶媒を減圧留去し高分子量エポキシシロキサン化合物A-6を得た。高分子量エポキシシロキサン化合物A-6は、一般式(2)で表わされる基同士が一般式(1)で表わされる基で連結されたエポキシシロキサン化合物と、一般式(2)で表わされる基及び下記一般式(3)で表わされる基が一般式(1)で表わされる基で連結されたエポキシシロキサン化合物との混合物であり、一般式(1)において、R1~R2がメチル基、R3~R4がメチル基とフェニル基の混合(メチル基:フェニル基=9:1)であり、aが230であり、一般式(2)及び一般式(3)においてR5がメチル基、E1が3-グリシジロキシプロピル、bが3である化合物である。また、高分子量エポキシシロキサン化合物A-6のエポキシ当量は5100であった。
温度計、攪拌装置を備えたガラス製反応容器に、2,4,6,8-テトラメチルシクロテトラシロキサン48g(0.2mol)、アリルグリシジルエーテル114g(1mol)、白金-ジビニルテトラメチルジシロキサン錯体(Karstedt触媒)10mg及び溶剤としてトルエン200gを仕込み、攪拌しながら105℃で3時間反応させた。この後、100℃で未反応のアリルグリシジルエーテルと溶媒を減圧留去し低分子量エポキシシロキサン化合物B-1を得た。低分子量エポキシシロキサン化合物B-1は、一般式(4)において、R6がメチル基、E2が3-グリシジロキシプロピル、dが4である化合物であり、エポキシ当量は174であった。
製造例10において、アリルグリシジルエーテル114g(1mol)の代わりに1,2-エポキシ-4-ビニルシクロヘキサン124g(1mol)を使用した以外は製造例10と同様の操作を行い、低分子量エポキシシロキサン化合物B-2を得た。低分子量エポキシシロキサン化合物B-2は、一般式(4)において、R6がメチル基、E2が2-(3,4-エポキシシクロヘキシル)エチル、dが4である化合物であり、エポキシ当量は184であった。
製造例10において、2,4,6,8-テトラメチルシクロテトラシロキサン48g(0.2mol)の代わりにテトラキス(ジメチルシロキシ)シラン65.6g(0.2mol)を使用した以外は製造例10と同様の操作を行い、低分子量エポキシシロキサン化合物B-3を得た。低分子量エポキシシロキサン化合物B-3は、一般式(25)において、R8~R9がメチル基、E2が3-グリシジロキシプロピル、eが3、f及びgが1である化合物であり、エポキシ当量は226であった。
国際公開第2008/133108号の実施例1に準じ、温度計、攪拌装置を備えたガラス製反応容器に、2,4,6,8-テトラメチルシクロテトラシロキサン80g、1,3-ジビニルテトラメチルジシロキサン37.2g、2-エポキシ-4-ビニルシクロヘキサン122.6g及び溶媒として1,4-ジオキサン925gを仕込み、加熱撹拌し、70℃で白金-ジビニルテトラメチルジシロキサン錯体(Karstedt触媒)10mgを添加した後、65~100℃で8時間反応させた。30℃に冷却してアセトニトリル925gを添加し、30℃で2時間攪拌し、更に、活性炭800gを添加して30℃で48時間撹拌を行った。活性炭をろ過により除去した後、ろ別した活性炭をアセトニトリルで洗浄し、その洗浄液を回収して、先に得られたろ液と混合した。エバポレーターを用いて、減圧条件下、加熱温度40℃にて、回収された混合液から1,4-ジオキサン及びアセトニトリルを留去し、比較のエポキシシロキサン組成物D-1を得た。比較のエポキシシロキサン組成物D-1のエポキシ当量は251であった。
国際公開第2008/133108号の実施例14に準じ、温度計、攪拌装置を備えたガラス製反応容器に、2,4,6,8-テトラメチルシクロテトラシロキサン55.0g、下記式(29)で表されるポリシロキサン化合物63.0g、2-エポキシ-4-ビニルシクロヘキサン110g及び溶媒として1,4-ジオキサン1000gを仕込み、加熱撹拌し、70℃で白金-ジビニルテトラメチルジシロキサン錯体(Karstedt触媒)10mgを添加した後、65~100℃で8時間反応させた。以下、製造例11と同様の操作を行い、比較のエポキシシロキサン組成物D-2を得た。比較のエポキシシロキサン組成物D-1のエポキシ当量は272であった。
(A)成分として高分子量エポキシシロキサン化合物A-1~5、(B)成分として低分子量エポキシシロキサン化合物B-1~3、(C)成分として下記化合物C-1~3、比較用の組成物D-1~2及び下記化合物D-3、並びに硬化促進剤として下記化合物E-1を用いて、下記表1及び表2に示す配合で混合し実施例1~23及び比較例1~28のケイ素含有硬化性樹脂組成物を調製した。得られたケイ素含有硬化性樹脂組成物を用いて、下記<試験片の調製>に従って試験片を調製した。
C-1:エポキシ硬化触媒(光硬化触媒)として、4-(2-クロロ-4-ベンゾイルフェニルチオ)フェニルビス(4-クロロフェニル)スルホニウムヘキサフルオロアンチモネート
C-2:エポキシ硬化触媒(熱硬化触媒)として、1-(シンナミル)テトラヒドロチオフェニウムヘキサフルオロアンチモネート
C-3:エポキシ硬化剤として、メチルヘキサヒドロ無水フタル酸
比較の低分子量エポキシ化合物
D-3:フェノールノボラック型エポキシ樹脂(縮合度8)エポキシ当量177
硬化促進剤
E-1:ジアザビシクロウンデセンオクチル酸塩
実施例1~23及び比較例1~28のケイ素含有硬化性樹脂組成物をそれぞれ、縦50mm、横50mm、厚さ1mmの正方形のガラス基板に膜厚が20μmになるように塗布し、下記の条件で光硬化又は熱硬化させることにより、実施例1~23及び比較例1~28の試験片を得た。
実施例1~14又は比較例1~15のケイ素含有硬化性樹脂組成物を塗布したガラス基板に、高圧水銀灯を用いて紫外線を10mJ/cm2(波長365nm露光換算)で照射し、次いで120℃の恒温槽で10分間ポストベイクすることにより硬化させた。
(熱硬化条件)
実施例15~23又は比較例16~28のケイ素含有硬化性樹脂組成物を塗布したガラス基板を、120℃の恒温槽で1時間、次いで150℃で2時間加熱することにより硬化させた。
(埃付着性試験)
試験片を粉末状シリカゲル(和光純薬社製、商品名:ワコーゲルC-100)の入った容器に、全体が埋まるまで入れた。試験片を容器から引き上げた後、ガラス板上に10cmの高さから硬化面が垂直になるように3回落下させた。この後、試験片の、800nmの光の透過率を測定した。結果を表1、2に示す。この透過率が低いほど表面のタックがあることを示す。尚、シリカゲル付着前の試験片の800nmの光の透過率は、いずれも99%以上であった。
試験片を200℃の恒温槽に入れ、120日まで30日ごとに試験片を顕微鏡観察し、硬化物の剥がれやクラックの発生を調べた。表1、2に剥がれやクラックが初めて見つかった日数を示す。尚、120日経過後も剥がれやクラックが見られなかったものは120日以上とした。
Claims (4)
- (B)成分の含有量が(A)成分と(B)成分との合計100質量部に対して3~50質量部である請求項1又は2に記載のケイ素含有硬化性樹脂組成物。
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| KR1020147011188A KR101858638B1 (ko) | 2012-03-23 | 2012-03-23 | 규소 함유 경화성 수지조성물 |
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Cited By (11)
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| JP2012144678A (ja) * | 2011-01-14 | 2012-08-02 | Adeka Corp | ケイ素含有硬化性樹脂組成物 |
| JP2016113593A (ja) * | 2014-12-18 | 2016-06-23 | 信越化学工業株式会社 | シリコーン変性エポキシ樹脂と多価カルボン酸化合物を含有するエポキシ樹脂およびその硬化物 |
| JPWO2017010401A1 (ja) * | 2015-07-10 | 2018-04-19 | 住友精化株式会社 | エポキシ樹脂組成物、その製造方法、及び該組成物の用途 |
| WO2018131564A1 (ja) * | 2017-01-10 | 2018-07-19 | 住友精化株式会社 | エポキシ樹脂組成物 |
| WO2020239982A1 (fr) * | 2019-05-29 | 2020-12-03 | Elkem Silicones France Sas | Méthode de fabrication additive pour produire un article en élastomère silicone |
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| JP2016113593A (ja) * | 2014-12-18 | 2016-06-23 | 信越化学工業株式会社 | シリコーン変性エポキシ樹脂と多価カルボン酸化合物を含有するエポキシ樹脂およびその硬化物 |
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| US11603466B2 (en) | 2017-01-10 | 2023-03-14 | Sumitomo Seika Chemicals Co.. Ltd. | Epoxy resin composition |
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| JPWO2018131564A1 (ja) * | 2017-01-10 | 2019-11-07 | 住友精化株式会社 | エポキシ樹脂組成物 |
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| KR20220024167A (ko) * | 2019-05-29 | 2022-03-03 | 엘켐 실리콘즈 프랑스 에스에이에스 | 실리콘 엘라스토머 제품 제조용 적층 제조 방법 |
| FR3096606A1 (fr) * | 2019-05-29 | 2020-12-04 | Elkem Silicones France Sas | Méthode de fabrication additive pour produire un article en élastomère silicone |
| JP2022534258A (ja) * | 2019-05-29 | 2022-07-28 | エルケム シリコンズ フランス ソシエテ パ アクシオンス シンプリフィエ | シリコーンエラストマー物品を生成するための付加製造法 |
| WO2020239982A1 (fr) * | 2019-05-29 | 2020-12-03 | Elkem Silicones France Sas | Méthode de fabrication additive pour produire un article en élastomère silicone |
| JP7256905B2 (ja) | 2019-05-29 | 2023-04-12 | エルケム シリコンズ フランス ソシエテ パ アクシオンス シンプリフィエ | シリコーンエラストマー物品を生成するための付加製造法 |
| KR102637455B1 (ko) | 2019-05-29 | 2024-02-15 | 엘켐 실리콘즈 프랑스 에스에이에스 | 실리콘 엘라스토머 제품 제조용 적층 제조 방법 |
| US12162213B2 (en) | 2019-05-29 | 2024-12-10 | Elkem Silicones France Sas | Additive manufacturing method for producing a silicone elastomer item |
| CN114222779A (zh) * | 2019-08-27 | 2022-03-22 | 三菱化学株式会社 | 含有环氧基的聚有机硅氧烷、包含含有环氧基的聚有机硅氧烷的固化性树脂组合物及其固化物 |
| CN115894926A (zh) * | 2022-11-21 | 2023-04-04 | 江南大学 | 一种环氧基含磷聚硅氧烷及其制备方法与制备的环氧组合物 |
Also Published As
| Publication number | Publication date |
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| CN103906783A (zh) | 2014-07-02 |
| CN103906783B (zh) | 2016-09-14 |
| KR101858638B1 (ko) | 2018-05-16 |
| KR20140148365A (ko) | 2014-12-31 |
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