WO2011049138A1 - (メタ)アクリル系樹脂組成物 - Google Patents
(メタ)アクリル系樹脂組成物 Download PDFInfo
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- WO2011049138A1 WO2011049138A1 PCT/JP2010/068512 JP2010068512W WO2011049138A1 WO 2011049138 A1 WO2011049138 A1 WO 2011049138A1 JP 2010068512 W JP2010068512 W JP 2010068512W WO 2011049138 A1 WO2011049138 A1 WO 2011049138A1
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- Prior art keywords
- meth
- acrylate
- resin composition
- acrylic resin
- adhesive
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F20/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide or nitrile thereof
- C08F20/02—Monocarboxylic acids having less than ten carbon atoms, Derivatives thereof
- C08F20/10—Esters
- C08F20/20—Esters of polyhydric alcohols or polyhydric phenols, e.g. 2-hydroxyethyl (meth)acrylate or glycerol mono-(meth)acrylate
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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
- C09J4/00—Adhesives based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; adhesives, based on monomers of macromolecular compounds of groups C09J183/00 - C09J183/16
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/46—Polymerisation initiated by wave energy or particle radiation
- C08F2/48—Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light
- C08F2/50—Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light with sensitising agents
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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
- C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
- C09J133/04—Homopolymers or copolymers of esters
- C09J133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C09J133/10—Homopolymers or copolymers of methacrylic acid esters
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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
- C09J5/00—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F222/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides, or nitriles thereof
- C08F222/10—Esters
- C08F222/1006—Esters of polyhydric alcohols or polyhydric phenols
- C08F222/103—Esters of polyhydric alcohols or polyhydric phenols of trialcohols, e.g. trimethylolpropane tri(meth)acrylate
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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
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/40—Additional features of adhesives in the form of films or foils characterized by the presence of essential components
- C09J2301/416—Additional features of adhesives in the form of films or foils characterized by the presence of essential components use of irradiation
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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
- C09J2433/00—Presence of (meth)acrylic polymer
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/11—Methods of delaminating, per se; i.e., separating at bonding face
- Y10T156/1153—Temperature change for delamination [e.g., heating during delaminating, etc.]
- Y10T156/1158—Electromagnetic radiation applied to work for delamination [e.g., microwave, uv, ir, etc.]
Definitions
- the present invention relates to a (meth) acrylic resin composition.
- photocurable resin compositions such as ultraviolet curable or visible light curable have been frequently used in the production of various electronic components, optical components and optical devices.
- various forms such as adhesion, potting, coating, sealing and molding.
- (meth) acrylic, epoxy, oxetane, polyvinyl, polyene / polythiol, and the like are known.
- (meth) acrylic type is most frequently used, and urethane acrylate type, epoxy acrylate type, polyester acrylate type, etc. are used depending on the application.
- polyene / polythiol systems are frequently used together with (meth) acrylic systems such as urethane acrylate systems as long as they are used for joining optical components and optical devices.
- heat resistance during production can be mentioned as a particularly required item.
- vapor deposition at a high temperature exceeding 200 ° C. or baking at a high temperature may be performed.
- optical components such as image sensors have been applied to surface mounting on circuit boards, and in this case, they are passed through high-temperature solder reflow.
- the temperature conditions for solder reflow have become stricter.
- the outgas generated during the high-temperature heat treatment may cause local contamination of components and devices, or the characteristics of components and devices may be deteriorated due to outgases generated during manufacturing and use.
- the problem of characteristic deterioration due to outgassing has become prominent.
- a polyimide-based adhesive having excellent peel adhesive strength is disclosed as a heat-resistant adhesive, but since it is heat-cured, it takes time to cure and is inferior in productivity (see Patent Document 2).
- the main chain skeleton is at least one selected from the group consisting of polybutadiene, polyisoprene, and hydrogenated products thereof, and at least one (meth) is present at the terminal or side chain of the main chain skeleton.
- An acrylic adhesive characterized by containing a polyfunctional (meth) acrylate, a photopolymerization initiator, and an antioxidant is disclosed, but no heat resistance is described (special Reference 4).
- the adhesive composition is characterized by containing a polyfunctional (meth) acrylate, a monofunctional (meth) acrylate, and a photopolymerization initiator, and a glass transition temperature of a cured product obtained from the composition is -50 ° C.
- a glass transition temperature of a cured product obtained from the composition is -50 ° C.
- JP 2006-342222 A Japanese Patent No. 3014526 Japanese Patent No. 3934701 International Publication No. 2006/129678 Pamphlet International Publication No. 2008/018252 Pamphlet
- the present invention has been completed as a result of various investigations in order to solve these problems of the prior art, particularly the problems of improving heat resistance and outgassing.
- (A) polyfunctional (meth) acrylate accounts for 90% by mass or more in the (meth) acrylic resin composition.
- the heating mass decreases when the cured product obtained from the (meth) acrylic resin composition is allowed to stand at 300 ° C. for 10 minutes in a helium stream.
- the rate is 6% by mass or less.
- (meth) acrylic resin composition according to the present invention 0.01 to 5 parts by mass of (B) photopolymerization initiator is used per 100 parts by mass of (A) polyfunctional (meth) acrylate. contains.
- the photopolymerization initiator is 2-hydroxy-1- ⁇ 4- [4- (2-hydroxy-2-methyl-propionyl). ) -Benzyl] -phenyl ⁇ -2-methyl-propan-1-one, 2-benzyl-2-dimethylamino-1- (4-morpholinophenyl) butanone-1,2-dimethylamino-2- (4-methyl) -Benzyl) -1- (4-morpholin-4-yl-phenyl) -butan-1-one, bis (2,4,6-trimethylbenzoyl) phenylphosphine oxide, 2,4,6-trimethylbenzoyldiphenylphos Finoxide, oxy-phenyl-acetic acid 2- [2-oxo-2-phenyl-acetoxy-ethoxy] -ethyl ester, oxy-phenol
- (A) polyfunctional (meth) acrylate is 1,3-adamantyldimethanol di (meth) acrylate, trimethylolpropane tri (meth) Acrylate, isocyanuric acid ethylene oxide modified di (meth) acrylate, isocyanuric acid ethylene oxide modified tri (meth) acrylate, pentaerythritol tri (meth) acrylate, pentaerythritol tetra (meth) acrylate, dimethylolpropane tetra (meth) acrylate, di One or more members selected from the group consisting of pentaerythritol penta (meth) acrylate, dipentaerythritol hexa (meth) acrylate, and 1,2-polybutadiene-terminated urethane (meth) acrylate.
- (C) a polymerization inhibitor is contained.
- the present invention is an adhesive comprising the (meth) acrylic resin composition according to the present invention.
- an adhesive body comprising: bonding substrates together using the adhesive according to the present invention; and irradiating the adhesive with visible light or ultraviolet rays to bond the substrates together. It is a manufacturing method.
- the adhesive includes using the adhesive according to the present invention after bonding the substrates together and bonding them, and then using the resulting adhesive in an environment of 250 ° C. or higher. How to use.
- the method for disassembling an adhesive body includes irradiating light having a wavelength of 280 nm or more while heating the adhesive body formed by bonding the base material with the adhesive according to the present invention to 150 ° C or higher. It is.
- the irradiation light source is selected from the group consisting of a high pressure mercury lamp, an ultrahigh pressure mercury lamp, a metal halide lamp, a xenon lamp, and a flash lamp filled with xenon gas.
- the cured product excellent in heat resistance and low outgassing property can be obtained by the (meth) acrylic resin composition of the present invention.
- polyfunctional (meth) acrylate polyfunctional (meth) having two or more (meth) acryloyl groups at the end of polymer (including oligomer and polymer) or polymer (including oligomer and polymer) side chain
- An acrylate polymer (including an oligomer and a polymer) and a monomer having two or more (meth) acryloyl groups can be used.
- the glass transition temperature of the cured product is 250 ° C. or higher
- the (A) polyfunctional (meth) acrylate to be used is not particularly limited. However, in the present invention, the glass transition temperature of the cured product of the resin composition is multifunctional (metafunctional).
- the polyfunctional (meth) acrylate can represent 90% by mass or more in the (meth) acrylic resin composition, and in a more typical embodiment, 95% by mass or more. For example, 90 to 99% by mass can be occupied.
- the glass transition temperature of the cured product of the resin composition is also governed by the type of polyfunctional (meth) acrylate, in order to control this at 250 ° C. or higher, the polyfunctional ( It is preferred to use (meth) acrylates.
- Monofunctional polyfunctional (meth) acrylates include 1,3-adamantyl dimethanol di (meth) acrylate, trimethylolpropane tri (meth) acrylate, isocyanuric acid ethylene oxide modified di (meth) acrylate, isocyanuric acid ethylene oxide modified tri (Meth) acrylate, pentaerythritol tri (meth) acrylate, pentaerythritol tetra (meth) acrylate, dimethylolpropane tetra (meth) acrylate, dipentaerythritol penta (meth) acrylate, dipentaerythritol hexa (meth) acrylate, etc. It is done. One or more of these may be used.
- 1,2-polybutadiene-terminated urethane (meth) acrylate for example, “TE-2000”, “TEA-1000” manufactured by Nippon Soda Co., Ltd.
- the hydrogenated product for example, “TEAI-1000” manufactured by Nippon Soda Co., Ltd.
- 1,4-polybutadiene-terminated urethane (meth) acrylate eg “BAC-45” manufactured by Osaka Organic Chemical Co., Ltd.
- polyisoprene-terminated (meth) acrylate polyester-based urethane (meta) ) Acryte (for example, “UV-2000B”, “UV-3000B”, “UV-7000B” manufactured by Nippon Gosei Co., Ltd., “KHP-11”, “KHP-17” manufactured by Negami Kogyo Co., Ltd.)
- polyether urethane (meta ) Acrylate for example, “UV-3
- polyfunctional (meth) acrylates 1,3-adamantyl dimethanol di (meth) acrylate, trimethylolpropane tri (meth) acrylate, isocyanuric acid ethylene oxide modified di (meta) in terms of heat resistance and low outgassing properties.
- One or more members selected from the group consisting of erythritol hexa (meth) acrylate and 1,2-polybutadiene-terminated urethane (meth) acrylate are preferred.
- One or more members selected from the group consisting of di (meth) acrylate and isocyanuric acid ethylene oxide-modified tri (meth) acrylate are preferred, trimethylolpropane tri (meth) acrylate, isocyanuric acid ethylene oxide-modified di (meth) acrylate, isocyanuric acid
- the content of isocyanuric acid ethylene oxide-modified di (meth) acrylate in the mixture of isocyanuric acid ethylene oxide-modified di (meth) acrylate and isocyanuric acid ethylene oxide-modified tri (meth) acrylate is 20 to 50% by mass. Preferably, 30 to 40% by mass is more preferable.
- the heating mass reduction rate may be 15% by mass or less. In view of heat resistance and low outgassing property, it is preferably 8% by mass or less, and most preferably 6% by mass or less.
- the heating mass reduction rate is preferably 0.1% by mass or more, and more preferably 4% by mass or more, for economic reasons.
- 2-hydroxy-1- ⁇ 4- [4- (2-hydroxy-2-methyl-propionyl) -benzyl] -phenyl ⁇ -2-methyl-propane is preferred in terms of heat resistance and low outgassing properties.
- the mass reduction rate of the photopolymerization initiator by heating is, for example, from 30 ° C. to 250 ° C. at a rate of temperature increase of 10 ° C./min in a nitrogen stream using a thermal mass spectrometer. When heated at an elevated temperature, it can be expressed as a mass reduction rate (mass%) at 250 ° C. with respect to the mass of the photopolymerization initiator at 30 ° C.
- the mass reduction rate of the cured product obtained from the (meth) acrylic resin composition of the present invention is, for example, 300% of the cured product of the (meth) acrylic resin composition in a helium stream using a thermal mass spectrometer. When exposed to a temperature of 10 ° C. for 10 minutes, it can be expressed as a mass reduction amount (mass%) after exposure to the mass of the cured body before exposure.
- the mass reduction rate of the cured product obtained from the (meth) acrylic resin composition of the present invention is preferably 6% by mass or less and preferably 5% by mass or less from the viewpoint of low outgassing properties and heat resistance. More preferably, it is 4% by mass or less, most preferably 2% by mass or less, still more preferably 0.1 to 6% by mass.
- the cured product obtained from the (meth) acrylic resin composition of the present invention can have a glass transition temperature of 250 ° C. or higher.
- the (meth) acrylic resin composition of the present invention is thermally decomposed at approximately 400 ° C., a glass transition temperature exceeding this cannot be measured, so the upper limit of the glass transition temperature is regarded as 400 ° C. be able to.
- a dynamic viscoelastic spectrum is used for the measuring method of the glass transition temperature of the hardening body obtained from the (meth) acrylic-type resin composition of this invention.
- stress and strain are applied to the cured body at a constant rate of temperature increase, and the temperature showing the peak top of loss tangent (hereinafter abbreviated as tan ⁇ ) can be used as the glass transition temperature. If the tan ⁇ peak does not appear even when the temperature is raised from a sufficiently low temperature of about ⁇ 150 ° C. to a certain temperature (Ta ° C.), the glass transition temperature is considered to be ⁇ 150 ° C. or lower or a certain temperature (Ta ° C.) or higher.
- a (meth) acrylic resin composition having a glass transition temperature of ⁇ 150 ° C. or lower cannot be considered because of its structure, and can be set to a certain temperature (Ta ° C.) or higher.
- the amount of the (B) photopolymerization initiator used is desirably 0.01 to 5 parts by mass of the (B) photopolymerization initiator with respect to 100 parts by mass of the (A) polyfunctional (meth) acrylate.
- the amount of the photopolymerization initiator used is 0.01 parts by mass or more, sufficient curability is obtained, and when it is 5 parts by mass or less, low outgassing properties and heat resistance are excellent. In view of curability, low outgassing property, and heat resistance, 0.1 to 3 parts by mass is preferable, and 0.3 to 2 parts by mass is more preferable.
- a monofunctional (meth) acrylate can be used as long as the object of the present invention is not impaired.
- the (meth) acrylic resin composition of the present invention can provide a good effect without using a monofunctional (meth) acrylate.
- (C) a polymerization inhibitor can be used to improve the storage stability.
- Polymerization inhibitors include methyl hydroquinone, hydroquinone, 2,2-methylene-bis (4-methyl-6-tertiary butylphenol), catechol, hydroquinone monomethyl ether, monotertiary butyl hydroquinone, 2,5-ditertiary butyl hydroquinone.
- P-benzoquinone 2,5-diphenyl-p-benzoquinone, 2,5-ditertiarybutyl-p-benzoquinone, picric acid, citric acid, phenothiazine, tertiary butylcatechol, 2-butyl-4-hydroxyanisole and 2 , 6-ditertiary butyl-p-cresol and the like.
- 2,2-methylene-bis (4-methyl-6-tertiarybutylphenol) is preferred.
- the amount of the polymerization inhibitor used is preferably 0.001 to 3 parts by mass, more preferably 0.01 to 2 parts by mass with respect to 100 parts by mass of (A). When it is 0.001 part by mass or more, storage stability is secured, and when it is 3 parts by mass or less, good adhesiveness is obtained, and it is not uncured.
- a polar organic solvent may be used together.
- the (meth) acrylic resin composition of the present invention includes various elastomers such as acrylic rubber, urethane rubber, acrylonitrile-butadiene-styrene rubber, inorganic fillers, solvents, Additives such as fillers, reinforcing materials, plasticizers, thickeners, dyes, pigments, flame retardants, silane coupling agents and surfactants may be used.
- elastomers such as acrylic rubber, urethane rubber, acrylonitrile-butadiene-styrene rubber, inorganic fillers, solvents, Additives such as fillers, reinforcing materials, plasticizers, thickeners, dyes, pigments, flame retardants, silane coupling agents and surfactants may be used.
- the substrates are bonded to each other using the (meth) acrylic resin composition of the present invention, it is preferable to irradiate visible light or ultraviolet light at a wavelength of 365 nm in an energy amount range of 1 to 8000 mJ / cm 2 .
- the energy amount is 1 mJ / cm 2 or more, sufficient adhesiveness is obtained, and when it is 8000 mJ / cm 2 or less, productivity is excellent, decomposition products from the photopolymerization initiator are hardly generated, and outgassing is also generated. It is suppressed.
- the range is preferably from 100 to 4000 mJ / cm 2 , and more preferably from 300 to 2000 mJ / cm 2 .
- the substrate bonded with the (meth) acrylic resin composition of the present invention is preferably a transparent substrate that transmits light.
- the transparent substrate include inorganic substrates such as quartz, glass, quartz, and calcium fluoride, and organic substrates such as plastic. Among these, glass and quartz are preferable because they are versatile and provide a great effect.
- the (meth) acrylic resin composition of the present invention is photocurable, and the cured product can have excellent heat resistance.
- the cured body of the (meth) acrylic resin composition of the present invention has a small outgas amount even when exposed to high temperatures, and is suitable for bonding, sealing, and coating of various optical components, optical devices, and electronic components. It is.
- the cured product of the (meth) acrylic resin composition of the present invention can be used at a high temperature of preferably 200 ° C. or higher, more preferably 250 ° C. or higher, and most preferably 300 ° C. or higher.
- the cured product of the (meth) acrylic resin composition of the present invention is preferably used at 500 ° C. or lower, more preferably 400 ° C. or lower, and most preferably 350 ° C. or lower.
- the adhesive body having the base material bonded thereto with an adhesive is irradiated with light having a wavelength of 280 nm or more, typically 300 to 400 nm while heating to 150 ° C. or more to reduce the adhesiveness.
- the adhesive body can be disassembled.
- the temperature of the adhesive during disassembly is preferably in the range of 150 ° C. to 300 ° C., more preferably in the range of 180 ° C. to 290 ° C., from the viewpoint of disassembly and deterioration of the substrate due to heating, and 200 ° C. Most preferably, it is in the range of ⁇ 280 ° C.
- one of the substrates does not transmit light of 280 nm or more.
- the bonded body is effectively heated by the substrate absorbing light of 280 nm or more.
- the disassembling method of the present invention irradiates light having a wavelength of 280 nm or more with a certain energy or more from the base material side of the adhesive bonded with the adhesive. If good peelability is obtained, the adhesive can be easily peeled by hand.
- Light irradiation energy at the time of dismantling is preferably 1000 ⁇ 5000000mJ / cm 2 in accumulated light quantity of the wavelength 365nm light, and more preferably from 10000 ⁇ 3000000mJ / cm 2, and most preferably 28000 ⁇ 2000000mJ / cm 2. It easily dismantled if 1000 mJ / cm 2 or more, does not become a non-productive if 5000000mJ / cm 2 or less.
- the irradiation light source is not particularly limited as long as the emission wavelength is 280 nm or more, such as a lamp light source and a laser light source.
- deuterium lamp As irradiation light source, deuterium lamp, mercury lamp (high pressure mercury lamp using mercury vapor of 10 5 Pa or higher, ultra high pressure mercury lamp using mercury vapor of 10 6 Pa or higher, low pressure using mercury vapor of 100 Pa or lower.
- Any known energy irradiation source such as a mercury lamp, a xenon lamp, a xenon-mercury hybrid lamp, a halogen lamp, an excimer lamp, an indium lamp, a thallium lamp, an LED lamp, and an electrodeless discharge lamp can be used.
- a high pressure mercury lamp, an ultrahigh pressure mercury lamp, a metal halide lamp, a xenon lamp, and a flash lamp filled with xenon gas having a large irradiation energy are preferable from the viewpoint of the disassembly of the adhesive.
- the method for heating the bonded body is not particularly limited.
- a heat source a hot plate, an oven, or the like may be used, or the adhesive body may be heated by radiant heat by irradiation light.
- Example 1 100 parts by mass of trimethylolpropane triacrylate (“Aronix M-309” manufactured by Toagosei Co., Ltd., hereinafter abbreviated as “M-309”) as polyfunctional (meth) acrylate, (B) 2 as photopolymerization initiator -Dimethylamino-2- (4-methyl-benzyl) -1- (4-morpholin-4-yl-phenyl) -butan-1-one (“IRGACURE379” manufactured by Ciba Japan, hereinafter abbreviated as “IRGACURE379”) 1 part by mass, (C) 2,2-methylene-bis (4-methyl-6-tertiary butylphenol) as a polymerization inhibitor (“Sumizer MDP-S” manufactured by Sumitomo Chemical Co., Ltd., hereinafter abbreviated as “MDP”) 0 A resin composition was prepared using 1 part by mass. The results are shown in Table 1.
- Glass transition temperature of cured body (“Glass transition temperature” in the table): The produced (meth) acrylic resin composition was sandwiched between PET films using a 1 mm thick silicon sheet as a mold. The (meth) acrylic resin composition was cured from the upper surface with black light under the condition of an integrated light amount of 500 mJ / cm 2 at a wavelength of 365 nm (“integrated light amount” in the table), and further, a wavelength of 365 nm from the bottom. The cured product of the (meth) acrylic resin composition having a thickness of 1 mm was prepared by curing under the condition of the accumulated light quantity of 500 mJ / cm 2 .
- the produced cured body was cut into a length of 50 mm and a width of 5 mm with a cutter to obtain a cured body for measuring a glass transition temperature.
- the obtained cured body was subjected to stress and strain in a tensile direction of 1 Hz to the cured body in a nitrogen atmosphere by a dynamic viscoelasticity measuring device “DMS210” manufactured by Seiko Electronics Industry Co., Ltd.
- the tan ⁇ was measured while raising the temperature from ⁇ 150 ° C. to 250 ° C. at the rate of ⁇ , and the temperature at the peak top of the tan ⁇ was taken as the glass transition temperature.
- the peak top of tan ⁇ was the maximum value in the region where tan ⁇ was 0.3 or more.
- Heated mass reduction rate of cured body (“Heating mass reduction rate of cured body” in the table): The produced (meth) acrylic resin composition was sandwiched between PET films using a 5 ⁇ m thick shim plate as a spacer. The (meth) acrylic resin composition is cured from the upper surface with a black light under the condition of an integrated light quantity of 500 mJ / cm 2 at a wavelength of 365 nm, and then the (meth) acrylic resin composition having a thickness of 5 ⁇ m is used. A cured body was produced. 10 mg of the obtained cured product was allowed to stand at 300 ° C.
- Heating mass reduction rate of photopolymerization initiator (“Heating mass reduction rate of photopolymerization initiator” in the table): 10 mg of photopolymerization initiator “IRGACURE379” is manufactured by Bruker AXS Co., Ltd. Using TG-DTA2000SA, the temperature was increased from 30 ° C. to 250 ° C. under a nitrogen stream at a rate of 10 ° C./min, and the heating mass reduction rate of the photopolymerization initiator “IRGACURE379” was measured.
- Tensile shear adhesive strength (“Adhesive strength” in the table): Specifically, using a blue plate glass (25 mm ⁇ 25 mm ⁇ 0.5 mm thickness) as an adherend, the adhesive site is 25 mm ⁇ 25 mm. 2 sheets of blue plate glass are bonded together with the resin composition prepared, and cured with black light under the condition of an integrated light amount of 500 mJ / cm 2 at a wavelength of 365 nm (“integrated light amount” in the table). A test piece was prepared. The produced test piece was measured for tensile shear adhesive strength at a tensile speed of 10 mm / min in an environment of a temperature of 23 ° C. and a humidity of 50% using a universal testing machine in accordance with JIS K 6850.
- Tensile shear adhesive strength after 250 ° C. heat resistance test (“Adhesive strength after 250 ° C. heat resistance test” in the table): specifically, blue plate glass (25 mm ⁇ 25 mm ⁇ 0.5 mm thickness) as an adherend ), The adhesive portion is set to 25 mm ⁇ 25 mm, and two blue plate glasses are bonded to each other with the produced resin composition, and an integrated light amount of a wavelength of 365 nm is 500 mJ / cm 2 (“integrated light amount” in the table). ]) And cured for 10 minutes in an oven heated to 250 ° C. to prepare a test piece.
- the produced test piece was measured for tensile shear adhesive strength at a tensile speed of 10 mm / min in an environment of a temperature of 23 ° C. and a humidity of 50% using a universal testing machine in accordance with JIS K 6850.
- Tensile shear adhesive strength after 300 ° C. heat resistance test (“Adhesive strength after 300 ° C. heat resistance test” in the table): measured. Specifically, using blue plate glass (25 mm x 25 mm x thickness 0.5 mm) as the adherend, bonding the adhesive part to 25 mm x 25 mm, and bonding the two blue plate glasses with the produced resin composition A test piece was prepared by curing with a black light under conditions of an integrated light amount of 500 mJ / cm 2 (wavelength of 365 nm) (“integrated light amount” in the table) at a wavelength of 365 nm and exposing in an oven heated to 300 ° C. for 10 minutes.
- the produced test piece was measured for tensile shear adhesive strength at a tensile speed of 10 mm / min in an environment of a temperature of 23 ° C. and a humidity of 50% using a universal testing machine in accordance with JIS K 6850.
- Peeling and dismantling test (2) A test piece identical to the tensile shear bond strength evaluation was prepared, and the obtained test specimen was exposed to an oven heated to 300 ° C. for 10 minutes, and then a metal halide lamp (usage apparatus: eye) was applied to the test specimen from the blue plate glass side. Using an IGRANTAGE ECS-401GX manufactured by Graphics, Inc., the integrated light quantity was irradiated under the conditions shown in Table 1 at an illuminance of 340 mW / cm 2 at a wavelength of 365 nm. The test piece after irradiation was measured for tensile shear adhesive strength at a tensile rate of 10 mm / min in an environment of a temperature of 23 ° C.
- Peeling and dismantling test (3) A test piece identical to the tensile shear bond strength evaluation was prepared, and the obtained test specimen was exposed to an oven heated to 300 ° C. for 10 minutes, and then a mercury xenon lamp (applicable device: Execre 4000 manufactured by HOYA was used, and the integrated light quantity was irradiated under the conditions shown in Table 1 at an illuminance of 100 mW / cm 2 at a wavelength of 365 nm. Further, the hot plate was heated from the blue plate glass side at a temperature of 200 ° C. The test piece after irradiation was measured for tensile shear adhesive strength at a tensile rate of 10 mm / min in an environment of a temperature of 23 ° C.
- Peeling and dismantling test (4) A test piece identical to the tensile shear bond strength evaluation was prepared, and the obtained test specimen was exposed in an oven heated to 300 ° C. for 10 minutes, and then the xenon gas filled flash lamp ( Using apparatus: Ushio Denki Co., Ltd .: FUV-201) was used, and an integrated light amount of 365 nm was irradiated under the conditions shown in Table 1.
- the test piece after irradiation was measured for tensile shear adhesive strength at a tensile rate of 10 mm / min in an environment of a temperature of 23 ° C. and a humidity of 50% using a universal testing machine according to JIS K 6850.
- the maximum temperature of the adhesive during the peeling / dismantling test was measured by attaching a thermocouple to the side of the blue glass that is not directly irradiated with light using a Kapton tape. The measurement and evaluation results are shown in Table 1.
- Peeling and dismantling test (5) A test piece identical to the tensile shear bond strength evaluation was prepared, and the obtained test specimen was exposed to an oven heated to 300 ° C. for 10 minutes, and then the xenon lamp (use apparatus: inflation) was applied to the test specimen from the blue plate glass side. Kogyo Co., Ltd .: SBH-300A) was used, and 6 points were irradiated from the lamp at a distance of 18.5 mm for 10 seconds. The test piece after irradiation was measured for tensile shear adhesive strength at a tensile rate of 10 mm / min in an environment of a temperature of 23 ° C. and a humidity of 50% using a universal testing machine according to JIS K 6850. The maximum temperature of the adhesive during the peeling / dismantling test was measured by attaching a thermocouple to the side of the blue glass that is not directly irradiated with light using a Kapton tape. The measurement and evaluation results are shown in Table 1.
- Examples 2 to 19, Comparative Examples 1 to 4 The same procedure as in Example 1 was conducted except that the resin compositions shown in Tables 1 to 5 were prepared. The results are shown in Tables 1-5.
- M-309 Trimethylolpropane triacrylate (“Aronix M-309” manufactured by Toa Gosei Co., Ltd.)
- A-201 1,3-adamantyl dimethanol diacrylate (“Adamantate A-201” manufactured by Idemitsu Kosan Co., Ltd.)
- X-M-201 1,3-adamantyl dimethanol dimethacrylate (“Adamantate X-M-201” manufactured by Idemitsu Kosan Co., Ltd.)
- TMP Trimethylolpropane trimethacrylate (“Kyoeisha Chemical Co., Ltd.“ Light Ester TMP ”)
- M-313 Mixture of isocyanuric acid ethylene oxide-modified diacrylate and isocyanuric acid ethylene oxide-modified triacrylate (content of isocyanuric acid ethylene oxide-modified diacrylate is 30% to 40%) (“M-313” manufactured by Toagosei Co., Ltd.) M
- Light acrylate PE-3A Pentaerythritol tetraacrylate (“Light acrylate PE-4A” manufactured by Kyoeisha Chemical Co., Ltd.)
- M-408 dimethylolpropane tetraacrylate (“M-408” manufactured by Toagosei Co., Ltd.)
- M-400 Mixture of dipentaerythritol pentaacrylate and dipentaerythritol hexaacrylate (content ratio of dipentaerythritol pentaacrylate is 40% to 50%) (“M-400” manufactured by Toagosei Co., Ltd.)
- DPE-6A Dipentaerythritol hexaacrylate (“Kyoeisha Chemical Co., Ltd.“ Light acrylate DPE-6A ”)
- TE-2000 1,2-polybutadiene-terminated urethane methacrylate
- TE-2000 1,2-polybutadiene-terminated urethane
- the adhesive composition of the present invention has the effect of high heat resistance and adhesiveness.
- the adhesiveness between the substrates bonded using the adhesive composition of the present invention provides an effect that the adhesiveness does not decrease even when used in an environment of 250 ° C. or higher. Even if the hardened
- the (meth) acrylic resin composition of the present invention in the production of various electronic components, optical components and optical devices, to easily exhibit strong adhesiveness only by irradiating ultraviolet rays or visible light, workability, Excellent productivity.
- the cured product of the (meth) acrylic resin composition of the present invention not only does not deteriorate the adhesiveness even at a high temperature of 250 ° C., but also has an extremely small amount of outgas even at such a high temperature. For this reason, various electronic components, optical components and optical devices bonded using the (meth) acrylic resin composition of the present invention are subjected to vapor deposition treatment at a high temperature exceeding 200 ° C. or baking coating at a high temperature. Even if done, it is applicable.
- optical components such as image sensors have been applied to surface mounting on circuit boards, and in that case, they are passed through high-temperature solder reflow.
- the temperature conditions for solder reflow have become stricter.
- the use location of the photocurable resin composition sufficiently withstand high-temperature heat treatment. Is done.
- An optical component or an optical device produced using the (meth) acrylic resin composition of the present invention can sufficiently withstand the high-temperature heat treatment, and thus is very useful industrially.
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Abstract
Description
モノマーの多官能(メタ)アクリレートとしては、1、3-アダマンチルジメタノールジ(メタ)アクリレート、トリメチロールプロパントリ(メタ)アクリレート、イソシアヌル酸エチレンオキサイド変性ジ(メタ)アクリレート、イソシアヌル酸エチレンオキサイド変性トリ(メタ)アクリレート、ペンタエリスリトールトリ(メタ)アクリレート、ペンタエリスリトールテトラ(メタ)アクリレート、ジメチロールプロパンテトラ(メタ)アクリレート、ジペンタエリスリトールペンタ(メタ)アクリレート、ジペンタエリスリトールヘキサ(メタ)アクリレート等が挙げられる。これらの1種又は2種以上を使用しても良い。
解体時の接着体の温度としては解体性及び加熱による基材の劣化の観点から150℃~300℃の範囲にあることが好ましく、180℃~290℃の範囲にあることがより好ましく、200℃~280℃の範囲にあることが最も好ましい。
照射光による輻射熱を利用するためには一方の基材が280nm以上の光を透過しないことが好ましい。280nm以上の光を基材が吸収することによって接着体が効果的に加熱される。
本発明の解体方法は一実施形態において、接着剤により接着した接着体の基材側から、280nm以上の波長の光を一定エネルギー以上照射する。良好な剥離性が得られる場合は、手で容易に接着体を剥離できる。
解体時の光の照射エネルギーは波長365nmの光の積算光量で1000~5000000mJ/cm2が好ましく、10000~3000000mJ/cm2がより好ましく、28000~2000000mJ/cm2が最も好ましい。1000mJ/cm2以上であれば解体しやすくなるし、5000000mJ/cm2以下であれば非生産性になることもない。
照射光源は、発光波長が280nm以上であれば、ランプ光源、レーザー光源等、特に限定されない。照射光源としては、重水素ランプ、水銀ランプ(105Pa以上の水銀蒸気を使用する高圧水銀ランプ、106Pa以上の水銀蒸気を使用する超高圧水銀ランプ、100Pa以下の水銀蒸気を使用する低圧水銀ランプを含む)、キセノンランプ、キセノン-水銀混成ランプ、ハロゲンランプ、エキシマランプ、インジュームランプ、タリウムランプ、LEDランプ、無電極放電ランプ等公知のエネルギー照射源であれば使用することができる。これらの中では、接着体の解体性の観点から、照射エネルギーの大きい高圧水銀ランプ、超高圧水銀ランプ、メタルハライドランプ、キセノンランプ、キセノンガス封入のフラッシュランプが好ましい。
接着体を加熱する方法は特に限定されない。熱源としては、ホットプレートやオーブン等を用いても良いし、照射光による輻射熱により接着体を加熱しても良い。
(A)多官能(メタ)アクリレートとして、トリメチロールプロパントリアクリレート(東亜合成社製「アロニックスM-309」、以下「M-309」と略す)100質量部、(B)光重合開始剤として2-ジメチルアミノ-2-(4-メチル-ベンジル)-1-(4-モリフォリン-4-イル-フェニル)-ブタン-1-オン(チバ・ジャパン社製「IRGACURE379」、以下「IRGACURE379」と略す)1質量部、(C)重合禁止剤として2,2-メチレン-ビス(4-メチル-6-ターシャリーブチルフェノール)(住友化学工業社製「スミライザーMDP-S」、以下「MDP」と略す)0.1質量部を使用して樹脂組成物を作製した。結果を表1に示す。
硬化体のガラス転移温度(表の「ガラス転移温度」):作製した (メタ)アクリル系樹脂組成物を、1mm厚のシリコンシートを型枠とし、PETフィルムに挟み込んだ。該(メタ)アクリル系樹脂組成物を、ブラックライトにより、365nmの波長の積算光量500mJ/cm2(表の「積算光量」)の条件にて上面から硬化させた後、更に下から365nmの波長の積算光量500mJ/cm2の条件にて硬化させ、厚さ1mmの該(メタ)アクリル系樹脂組成物の硬化体を作製した。作製した硬化体をカッターにて長さ50mm幅5mmに切断しガラス転移温度測定用硬化体とした。得られた硬化体をセイコー電子産業社製、動的粘弾性測定装置「DMS210」により、窒素雰囲気中にて前記硬化体に1Hzの引張方向の応力及び歪みを加え、昇温速度毎分2℃の割合で-150℃から250℃まで昇温しながらtanδを測定し、該tanδのピークトップの温度をガラス転移温度とした。tanδのピークトップはtanδが0.3以上の領域における最大値とした。tanδが-150℃から250℃の領域で0.3以下であった場合、tanδのピークトップは250℃以上にあるとし、ガラス転移温度は250℃以上とした。
前記引張剪断接着強さ評価と同じ試験片を作製し、得られた試験体を300℃に加熱したオーブン中に10分間暴露した後に、該試験体に青板ガラス側から高圧水銀灯(使用装置:アイグラフィックス社製アイグランテージECS-401GX)を使用し、365nmの波長の照度340mW/cm2にて積算光量を表1に示す条件にて照射した。照射後の試験片は、JIS K 6850に従い、万能試験機を使用して、温度23℃、湿度50%の環境下、引張速度10mm/minで引張剪断接着強さを測定した。剥離・解体試験時の接着体の最高温度は光が直接照射されない方の青板ガラス側に熱電対を、カプトンテープを用いて貼り合わせることにより、測定した。測定及び評価結果を表1に示す。
前記引張剪断接着強さ評価と同じ試験片を作製し、得られた試験体を300℃に加熱したオーブン中に10分間暴露した後に、該試験体に青板ガラス側からメタルハライドランプ(使用装置:アイグラフィックス社製アイグランテージECS-401GX)を使用し、365nmの波長の照度340mW/cm2にて積算光量を表1に示す条件にて照射した。照射後の試験片は、JIS K 6850に従い、万能試験機を使用して、温度23℃、湿度50%の環境下、引張速度10mm/minで引張剪断接着強さを測定した。剥離・解体試験時の接着体の最高温度は光が直接照射されない方の青板ガラス側に熱電対を、カプトンテープを用いて貼り合わせることにより、測定した。測定及び評価結果を表1に示す。
前記引張剪断接着強さ評価と同じ試験片を作製し、得られた試験体を300℃に加熱したオーブン中に10分間暴露した後に、該試験体に青板ガラス側から水銀キセノンランプ(使用装置:HOYA社製EXECURE4000)を使用し、365nmの波長の照度100mW/cm2にて積算光量を表1に示す条件にて照射した。又、青板ガラス側からホットプレートの温度を200℃として加熱した。照射後の試験片は、JIS K 6850に従い、万能試験機を使用して、温度23℃、湿度50%の環境下、引張速度10mm/minで引張剪断接着強さを測定した。剥離・解体試験時の接着体の最高温度は光が直接照射されない方の青板ガラス側に熱電対を、カプトンテープを用いて貼り合わせることにより、測定した。測定及び評価結果を表1に示す。
前記引張剪断接着強さ評価と同じ試験片を作製し、得られた試験体を300℃に加熱したオーブン中に10分間暴露した後に、該試験体に青板ガラス側からキセノンガス封入のフラッシュランプ(使用装置:ウシオ電機社製:FUV―201)を使用し、365nmの波長の積算光量を表1に示す条件にて照射した。照射後の試験片は、JIS K 6850に従い、万能試験機を使用して、温度23℃、湿度50%の環境下、引張速度10mm/minで引張剪断接着強さを測定した。剥離・解体試験時の接着体の最高温度は光が直接照射されない方の青板ガラス側に熱電対を、カプトンテープを用いて貼り合わせることにより、測定した。測定及び評価結果を表1に示す。
前記引張剪断接着強さ評価と同じ試験片を作製し、得られた試験体を300℃に加熱したオーブン中に10分間暴露した後に、該試験体に青板ガラス側からキセノンランプ(使用装置:インフリッジ工業社製:SBH―300A)を使用し、ランプより18.5mmの距離にて10秒間ずつ6点照射した。照射後の試験片は、JIS K 6850に従い、万能試験機を使用して、温度23℃、湿度50%の環境下、引張速度10mm/minで引張剪断接着強さを測定した。剥離・解体試験時の接着体の最高温度は光が直接照射されない方の青板ガラス側に熱電対を、カプトンテープを用いて貼り合わせることにより、測定した。測定及び評価結果を表1に示す。
表1~5に示す樹脂組成物を作製したこと以外は、実施例1と同様に行った。結果を表1~5に示す。
(成分A)
M-309:トリメチロールプロパントリアクリレート(東亜合成社製「アロニックスM-309」)
A-201:1、3-アダマンチルジメタノールジアクリレート(出光興産社製「アダマンテートA-201」)
X-M-201:1、3-アダマンチルジメタノールジメタクリレート(出光興産社製「アダマンテートX-M-201」)
TMP:トリメチロールプロパントリメタクリレート(共栄社化学社製「ライトエステルTMP」)
M-313:イソシアヌル酸エチレンオキサイド変性ジアクリレートとイソシアヌル酸エチレンオキサイド変性トリアクリレートの混合物(イソシアヌル酸エチレンオキサイド変性ジアクリレートの含有率が30%~40%)(東亞合成社製「M-313」)
M-315:イソシアヌル酸エチレンオキサイド変性ジアクリレートとイソシアヌル酸エチレンオキサイド変性トリアクリレートの混合物(イソシアヌル酸エチレンオキサイド変性ジアクリレートの含有率が3%~13%)(東亞合成社製「M-315」)
PE-3A:ペンタエリスリトールトリアクリレート(共栄社化学社製「ライトアクリレートPE-3A」)
PE-4A:ペンタエリスリトールテトラアクリレート(共栄社化学社製「ライトアクリレートPE-4A」)
M-408:ジメチロールプロパンテトラアクリレート(東亞合成社製「M-408」)
M-400:ジペンタエリスリトールペンタアクリレートとジペンタエリスリトールヘキサアクリレートの混合物(ジペンタエリスリトールペンタアクリレートの含有率が40%~50%)(東亞合成社製「M-400」)
DPE-6A:ジペンタエリスリトールヘキサアクリレート(共栄社化学社製「ライトアクリレートDPE-6A」)、
TE-2000:1,2-ポリブタジエン末端ウレタンメタアクリレート(日本曹達社製「TE-2000」)
(成分B)
IRGACURE379:2-ジメチルアミノ-2-(4-メチル-ベンジル)-1-(4-モリフォリン-4-イル-フェニル)-ブタン-1-オン(チバ・ジャパン社製「IRGACURE379」)
IRGACURE127:2-ヒドロキシ-1-{4-[4-(2-ヒドロキシ-2-メチル-プロピオニル)-ベンジル]-フェニル}-2-メチル-プロパン-1-オン(チバ・ジャパン社製「IRGACURE127」)
IRGACURE369:2-ベンジル-2-ジメチルアミノ-1-(4-モルホリノフェニル)ブタノン-1(チバ・ジャパン社製「IRGACURE369」)
IRGACURE819:ビス(2,4,6-トリメチルベンゾイル)フェニルフォスフィンオキサイド(チバ・ジャパン社製「IRGACURE819」)
DAROCUR TPO:2,4,6-トリメチルベンゾイルジフェニルフォスフィンオキサイド(チバ・ジャパン社製「DAROCUR TPO」)
IRGACURE754:オキシ-フェニル-アセチックアシッド2-[2-オキソ-2-フェニル-アセトキシ-エトキシ]-エチルエステルとオキシ-フェニル-アセチックアシッド2-[2-ヒドロキシ-エトキシ]-エチルエステルの混合物(チバ・ジャパン社製「IRGACURE754」)
(成分C)
MDP:2,2-メチレン-ビス(4-メチル-6-ターシャリーブチルフェノール)(住友化学工業社製「スミライザーMDP-S」)
(その他)
BDK:ベンジルジメチルケタール(チバ・スペシャルティ・ケミカルズ社製「IRGACURE651」
IB-XA:イソボニルアクリレート(共栄社化学社製「ライトアクリレートIB-XA」)
BZ:ベンジルメタクリレート(共栄社化学社製「ライトエステルBZ」)
1,6-HX-A:1,6-ヘキサンジオールジアクリレート(共栄社化学社製「ライトアクリレート1,6-HX-A」)
Claims (12)
- (A)多官能(メタ)アクリレート、(B)窒素気流下、昇温速度10℃/分で30℃から250℃まで昇温したとき、加熱質量減少率が15質量%以下である光重合開始剤を含有する (メタ)アクリル系樹脂組成物であり、該組成物から得られる硬化体のガラス転移温度が250℃以上である(メタ)アクリル系樹脂組成物。
- (A)多官能(メタ)アクリレートは(メタ)アクリル系樹脂組成物中の90質量%以上を占める請求項1に記載の(メタ)アクリル系樹脂組成物。
- (メタ)アクリル系樹脂組成物から得られる硬化体をヘリウム気流下において300℃で10分放置した際の加熱質量減少率が6質量%以下である請求項1又は2に記載の(メタ)アクリル系樹脂組成物。
- (A)多官能(メタ)アクリレート100質量部に対して、(B)光重合開始剤を0.01~5質量部含有する請求項1~3のいずれか一項に記載の(メタ)アクリル系樹脂組成物。
- (B)光重合開始剤が、2-ヒドロキシ-1-{4-[4-(2-ヒドロキシ-2-メチル-プロピオニル)-ベンジル]-フェニル}-2-メチル-プロパン-1-オン、2-ベンジル-2-ジメチルアミノ-1-(4-モルホリノフェニル)ブタノン-1、2-ジメチルアミノ-2-(4-メチル-ベンジル)-1-(4-モリフォリン-4-イル-フェニル)-ブタン-1-オン、ビス(2,4,6-トリメチルベンゾイル)フェニルフォスフィンオキサイド、2,4,6-トリメチルベンゾイルジフェニルフォスフィンオキサイド、オキシ-フェニル-アセチックアシッド2-[2-オキソ-2-フェニル-アセトキシ-エトキシ]-エチルエステル、オキシ-フェニル-アセチックアシッド2-[2-ヒドロキシ-エトキシ]-エチルエステルからなる群のうちの1種以上である請求項1~4のいずれか一項に記載の(メタ)アクリル系樹脂組成物。
- (A)多官能(メタ)アクリレートが、1、3-アダマンチルジメタノールジ(メタ)アクリレート、トリメチロールプロパントリ(メタ)アクリレート、イソシアヌル酸エチレンオキサイド変性ジ(メタ)アクリレート、イソシアヌル酸エチレンオキサイド変性トリ(メタ)アクリレート、ペンタエリスリトールトリ(メタ)アクリレート、ペンタエリスリトールテトラ(メタ)アクリレート、ジメチロールプロパンテトラ(メタ)アクリレート、ジペンタエリスリトールペンタ(メタ)アクリレート、ジペンタエリスリトールヘキサ(メタ)アクリレート、1,2-ポリブタジエン末端ウレタン(メタ)アクリレートからなる群のうちの1種以上である請求項1~5のいずれか一項に記載の(メタ)アクリル系樹脂組成物。
- (C)重合禁止剤を含有する請求項1~6のいずれか一項に記載の(メタ)アクリル系樹脂組成物。
- 請求項1~7のいずれか一項に記載の(メタ)アクリル系樹脂組成物からなる接着剤。
- 請求項8記載の接着剤を使用して基材を貼り合わせ、該接着剤に可視光線若しくは紫外線を照射して基材同士を接着することを含む接着体の製造方法。
- 請求項8記載の接着剤を使用して基材同士を貼り合わせ、接着した後、得られた接着体を250℃以上の環境で使用することを含む接着体の使用方法。
- 請求項8記載の接着剤により基材を接着してなる接着体を150℃以上に加熱しながら波長280nm以上の光を照射することを含む接着体解体方法。
- 照射光源が高圧水銀ランプ、超高圧水銀ランプ、メタルハライドランプ、キセノンランプ、及びキセノンガス封入のフラッシュランプよりなる群から選択される請求項11に記載の接着体解体方法。
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| US13/503,546 US8901192B2 (en) | 2009-10-22 | 2010-10-20 | (Meth)acrylic resin composition |
| CN201080047821.0A CN102574951B (zh) | 2009-10-22 | 2010-10-20 | (甲基)丙烯酸系树脂组合物 |
| JP2011537285A JP5812863B2 (ja) | 2009-10-22 | 2010-10-20 | 接着体の使用方法 |
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| JP (1) | JP5812863B2 (ja) |
| KR (1) | KR101634602B1 (ja) |
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Also Published As
| Publication number | Publication date |
|---|---|
| US20120205043A1 (en) | 2012-08-16 |
| TW201120123A (en) | 2011-06-16 |
| TWI495679B (zh) | 2015-08-11 |
| CN102574951B (zh) | 2015-06-17 |
| KR101634602B1 (ko) | 2016-06-29 |
| KR20120099053A (ko) | 2012-09-06 |
| US8901192B2 (en) | 2014-12-02 |
| JPWO2011049138A1 (ja) | 2013-03-14 |
| JP5812863B2 (ja) | 2015-11-17 |
| CN102574951A (zh) | 2012-07-11 |
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