WO2022138562A1 - 組成物、及びその硬化物を含むシート - Google Patents
組成物、及びその硬化物を含むシート Download PDFInfo
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- WO2022138562A1 WO2022138562A1 PCT/JP2021/047033 JP2021047033W WO2022138562A1 WO 2022138562 A1 WO2022138562 A1 WO 2022138562A1 JP 2021047033 W JP2021047033 W JP 2021047033W WO 2022138562 A1 WO2022138562 A1 WO 2022138562A1
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- acrylate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/22—After-treatment of expandable particles; Forming foamed products
- C08J9/224—Surface treatment
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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
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- C—CHEMISTRY; METALLURGY
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- 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
- C08F222/106—Esters of polycondensation macromers
- C08F222/1063—Esters of polycondensation macromers of alcohol terminated polyethers
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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
- C08F265/00—Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00
- C08F265/08—Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00 on to polymers of nitriles
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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
- C08F290/00—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups
- C08F290/02—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups on to polymers modified by introduction of unsaturated end groups
- C08F290/06—Polymers provided for in subclass C08G
- C08F290/062—Polyethers
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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
- C08F292/00—Macromolecular compounds obtained by polymerising monomers on to inorganic materials
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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
- C08F299/00—Macromolecular compounds obtained by interreacting polymers involving only carbon-to-carbon unsaturated bond reactions, in the absence of non-macromolecular monomers
- C08F299/02—Macromolecular compounds obtained by interreacting polymers involving only carbon-to-carbon unsaturated bond reactions, in the absence of non-macromolecular monomers from unsaturated polycondensates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/32—Polymers modified by chemical after-treatment
- C08G65/329—Polymers modified by chemical after-treatment with organic compounds
- C08G65/331—Polymers modified by chemical after-treatment with organic compounds containing oxygen
- C08G65/332—Polymers modified by chemical after-treatment with organic compounds containing oxygen containing carboxyl groups, or halides, or esters thereof
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/32—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof from compositions containing microballoons, e.g. syntactic foams
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/22—Expandable microspheres, e.g. Expancel®
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2309/00—Characterised by the use of homopolymers or copolymers of conjugated diene hydrocarbons
- C08J2309/02—Copolymers with acrylonitrile
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2333/00—Characterised by the use of homopolymers or 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 of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
- C08J2333/04—Characterised by the use of homopolymers or 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 of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2371/00—Characterised by the use of polyethers obtained by reactions forming an ether link in the main chain; Derivatives of such polymers
- C08J2371/02—Polyalkylene oxides
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2433/00—Characterised by the use of homopolymers or 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 of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
- C08J2433/04—Characterised by the use of homopolymers or 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 of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters
- C08J2433/06—Characterised by the use of homopolymers or 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 of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters of esters containing only carbon, hydrogen, and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C08J2433/08—Homopolymers or copolymers of acrylic acid esters
Definitions
- the present invention relates to a composition and a sheet containing a cured product thereof.
- Patent Document 1 describes a heat insulating layer formed on the surface of a base material and provided with a large number of hollow particles and a binder that fills the space between the hollow particles and holds the hollow particles on the base material.
- a heat insulating layer is described in which the binder is a silicone resin containing T units and D units as basic constituent units.
- a heat insulating material having low elasticity and excellent elongation may be required so that the heat insulating material can be applied to members having various shapes.
- an object of the present invention is to provide a composition suitable for a heat insulating material having low elasticity and excellent elongation, and a sheet containing a cured product thereof.
- the present inventors have obtained a composition containing a specific compound having a polyoxyalkylene chain and two (meth) acryloyl groups, and hollow particles. It has been found that a composition suitable for a heat insulating material having low elasticity and excellent elongation, and a sheet containing the cured product thereof can be obtained.
- the present invention provides the following [1] to [7] in several aspects.
- R 11 and R 12 each independently represent a hydrogen atom or a methyl group, and R 13 represents a divalent group having a polyoxyalkylene chain.
- R 11 and R 12 each independently represent a hydrogen atom or a methyl group
- R 13 represents a divalent group having a polyoxyalkylene chain.
- the polyoxyalkylene chain contains an oxypropylene group.
- the composition according to [1], wherein the polyoxyalkylene chain is a copolymer chain containing an oxyethylene group and an oxypropylene group.
- the copolymer chain is a random copolymer chain.
- the hollow particles include first hollow particles which are thermally expandable hollow particles and second hollow particles which are hollow particles other than the first hollow particles [1] to [5]. ]
- the composition according to any one of. [7] A sheet containing a cured product of the composition according to any one of [1] to [6].
- the present invention it is possible to provide a composition suitable for a heat insulating material having low elasticity and excellent elongation, and a sheet containing a cured product thereof.
- (meth) acryloyl means “acryloyl” and the corresponding “methacryloyl”, and the same applies to similar expressions such as “(meth) acrylate” and “(meth) acrylic”. ..
- the weight average molecular weight (Mw) in the present specification means a value determined by using gel permeation chromatography (GPC) under the following conditions and using polystyrene as a standard substance.
- GPC gel permeation chromatography
- composition contains a compound represented by the following formula (1) and hollow particles.
- R 11 and R 12 each independently represent a hydrogen atom or a methyl group
- R 13 represents a divalent group having a polyoxyalkylene chain.
- the cured product of the composition when the composition contains the compound represented by the above formula (1), the cured product of the composition has low elasticity and excellent elongation, and can enhance the followability to the adherend.
- one of R 11 and R 12 may be a hydrogen atom and the other may be a methyl group, and in the other embodiment, both R 11 and R 12 may be hydrogen atoms. In other embodiments, both R 11 and R 12 may be methyl groups.
- the polyoxyalkylene chain comprises a structural unit represented by the following formula (2). This makes it possible to increase the strength of the cured product while suppressing an excessive increase in the viscosity of the composition.
- R 13 may be a divalent group having a polyoxyethylene chain, and the compound represented by the formula (1) is preferably a compound represented by the following formula (1-2) (polyethylene glycol di). (Meta) acrylate).
- R 11 and R 12 are synonymous with R 11 and R 12 in equation (1), respectively, and m is an integer of 2 or more.
- the polyoxyalkylene chain comprises a structural unit represented by the following formula (3). This makes it possible to facilitate the handling of the composition.
- R 13 may be a divalent group having a polyoxypropylene chain, and the compound represented by the formula (1) is preferably a compound represented by the following formula (1-3) (polypropylene glycol di). (Meta) acrylate).
- formula (1-3) polypropylene glycol di).
- Methoda) acrylate acrylate
- R 11 and R 12 are synonymous with R 11 and R 12 in equation (1), respectively, and n is an integer of 2 or more.
- the polyoxyalkylene chain is preferably of the above-mentioned formula (from the viewpoint of facilitating both the strength of the cured product of the compound represented by the formula (1) and the handleability of the composition. It is a copolymer chain containing a structural unit represented by 2) and a structural unit represented by the formula (3).
- the copolymer chain may be any of an alternating copolymer chain, a block copolymer chain, and a random copolymer chain.
- the copolymer chain is preferably a random copolymer chain from the viewpoint of further lowering the crystallinity of the compound represented by the formula (1) and further facilitating the handling of the composition.
- the polyoxyalkylene chain has an oxytetramethylene group, an oxybutylene group, and an oxypentylene group in addition to the structural unit represented by the formula (2) and the structural unit represented by the formula (3). Or the like, it may have an oxyalkylene group having 4 to 5 carbon atoms as a structural unit.
- R 13 may be a divalent group having another organic group in addition to the polyoxyalkylene chain described above.
- the other organic group may be a chain-like group other than the polyoxyalkylene chain, and for example, a methylene chain (a chain having -CH 2- as a structural unit) and a polyester chain (-COO-) are included in the structural unit. It may be a chain), a polyurethane chain (a chain containing —OCON— in a structural unit), or the like.
- the compound represented by the formula (1) may be a compound represented by the following formula (1-4).
- R 11 and R 12 are synonymous with R 11 and R 12 in formula (1), respectively, and R 14 and R 15 are independently alkylene groups having 2 to 5 carbon atoms, respectively.
- K1, k2 and k3 are independently integers of 2 or more.
- k2 may be, for example, an integer of 16 or less.
- the plurality of R 14 and R 15 may be the same as each other or may be different from each other.
- the plurality of R 14 and R 15 preferably contain an ethylene group and a propylene group, respectively. That is, the polyoxyalkylene chain represented by (R 14 O) k1 and the polyoxyalkylene chain represented by (R 15 O) k3 are each preferably represented by an oxyethylene group (represented by the above formula (2)). It is a copolymer chain containing an oxypropylene group (a structural unit represented by the above formula (3)).
- the number of oxyalkylene groups in the polyoxyalkylene chain is preferably 100 or more.
- the main chain of the compound represented by the formula (1) becomes longer, so that the elongation of the cured product is further excellent and the strength of the cured product is also increased. Can be done.
- the number of oxyalkylene groups corresponds to m in the formula (1-2), n in the formula (1-3), and k1 and k3 in the formula (1-4), respectively.
- the number of oxyalkylene groups in the polyoxyalkylene chain is more preferably 130 or more, 180 or more, 200 or more, 220 or more, 250 or more, 270 or more, 300 or more, or 320 or more.
- the number of oxyalkylene groups in the polyoxyalkylene chain may be 600 or less, 570 or less, or 530 or less.
- the weight average molecular weight of the compound represented by the formula (1) is preferably 5000 or more, 6000 or more, 7000 or more, 8000 or more, 9000 or more, 10000 or more, 11000 from the viewpoint that the cured product has lower elasticity and excellent elongation. 12000 or more, 13000 or more, 14000 or more, or 15000 or more.
- the weight average molecular weight of the compound represented by the formula (1) is preferably 100,000 or less, 80,000 or less, 60,000 or less, 34,000 or less, 31,000 or less, or 28,000 or less from the viewpoint of facilitating the adjustment of the viscosity of the composition. ..
- the compound represented by the formula (1) may be liquid at 25 ° C.
- the viscosity of the compound represented by the formula (1) at 25 ° C. is preferably 1000 Pa ⁇ s or less from the viewpoint of facilitating application to the coated surface and enhancing the adhesion of the cured product to the coated surface. , 800 Pa ⁇ s or less, 600 Pa ⁇ s or less, 500 Pa ⁇ s or less, 350 Pa ⁇ s or less, 300 Pa ⁇ s or less, or 200 Pa ⁇ s or less.
- 0.1 Pa ⁇ s or more is 0.1 Pa ⁇ s or more, 0.2 Pa ⁇ s or more, 0.3 Pa ⁇ s or more, 1 Pa ⁇ s or more, 2 Pa ⁇ s or more, or 3 Pa ⁇ s. It may be s or more.
- the compound represented by the formula (1) may be in a solid state at 25 ° C.
- the compound represented by the formula (1) is preferably liquid at 50 ° C. from the viewpoint of further improving the handleability of the composition.
- the viscosity of the compound represented by the formula (1) at 50 ° C. is preferably 100 Pa ⁇ s or less, more preferably 50 Pa ⁇ s or less, still more preferably, from the viewpoint of further improving the handleability of the composition. Is 30 Pa ⁇ s or less, particularly preferably 20 Pa ⁇ s or less.
- the viscosity of the compound represented by the formula (1) at 50 ° C. may be 0.1 Pa ⁇ s or more, 0.2 Pa ⁇ s or more, or 0.3 Pa ⁇ s or more.
- Viscosity means a value measured based on JIS Z8803, specifically, a value measured by an E-type viscometer (for example, PE-80L manufactured by Toki Sangyo Co., Ltd.).
- the calibration of the viscometer can be performed based on JIS Z 8809-JS14000.
- the viscosity of the compound represented by the formula (1) can be adjusted by adjusting the weight average molecular weight of the compound.
- the content of the compound represented by the formula (1) is preferably 10% by mass or more, 20% by mass or more, and 30% by mass, based on the total amount of the composition, from the viewpoint that the cured product has lower elasticity and excellent elongation. Or more, or 40% by mass or more.
- the content of the compound represented by the formula (1) may be 90% by mass or less, 80% by mass or less, 70% by mass or less, 60% by mass or less, or 50% by mass or less based on the total amount of the composition. ..
- the composition may further contain a polymerizable compound (details will be described later) other than the compound represented by the formula (1).
- the content of the compound represented by the formula (1) is the total of the compound represented by the formula (1) and other polymerizable compounds (hereinafter, from the viewpoint that the cured product has lower elasticity and excellent elongation). It is preferably 20 parts by mass or more, 30 parts by mass or more, or 40 parts by mass or more with respect to 100 parts by mass (referred to as "total content of polymerizable components").
- the content of the compound represented by the formula (1) may be 80 parts by mass or less, 70 parts by mass or less, or 60 parts by mass or less with respect to 100 parts by mass of the total content of the polymerizable component.
- the hollow particles have an outer shell and a hollow portion.
- the heat insulating property of the composition is improved, and the composition can be suitably used as a heat insulating material.
- the hollow particles include a first hollow particle which is a heat-expandable hollow particle and a second hollow particle which is a hollow particle other than the first hollow particle.
- the hollow particles may contain either or both of the first hollow particles and the second hollow particles, and preferably include both the first hollow particles and the second hollow particles.
- the first hollow particle is a (heat-expandable) hollow particle that expands by heat.
- the thermally expandable hollow particles in the present specification are hollow particles having a maximum volume expansion ratio of 10 times or more with respect to a volume at 25 ° C.
- the first hollow particles expand due to heat in the reflow step, so that the adhesive area at the interface between the heat insulating material and the device is reduced, and the composition is easily removed after the reflow step. be able to.
- the maximum volume expansion ratio of the first hollow particles is the maximum volume of the first hollow particles and the volume at 25 ° C when the temperature is raised at a heating rate of 10 ° C./min by thermomechanical analysis (TMA). Measured as a ratio (maximum volume / volume at 25 ° C.).
- TMA thermomechanical analysis
- the maximum volume expansion ratio of the first hollow particles may be, for example, 10 times or more, 20 times or more, 30 times or more, or 40 times or more, or 120 times or less.
- the outer shell of the first hollow particle is preferably composed of a thermoplastic polymer.
- the thermoplastic polymer may be a polymer containing, for example, acrylonitrile, vinylidene chloride, or the like as a monomer unit.
- the thickness of the outer shell may be 2 ⁇ m or more and may be 15 ⁇ m or less.
- a liquid is contained in the hollow portion of the first hollow particle.
- the first hollow particles are in such a state under normal temperature and pressure (for example, at least at atmospheric pressure and 30 ° C.).
- the liquid is appropriately selected depending on, for example, the heating temperature in the reflow process.
- the liquid is, for example, a liquid that vaporizes at a temperature equal to or lower than the maximum heating temperature in the reflow process.
- the liquid may be, for example, a hydrocarbon having a boiling point (under atmospheric pressure) of 50 ° C. or higher, 100 ° C. or higher, 150 ° C. or higher, or 200 ° C. or higher.
- a gas may be further contained in the hollow portion of the first hollow particles.
- the components contained in the hollow portion of the first hollow particles include, for example, propane, propylene, butene, normal butane, isobutane, normal pentane, isopentan, neopentane, normal hexane, isohexane, heptane, isooctane, normal octane, and isoalkane.
- hydrocarbons such as petroleum ethers
- low boiling point compounds such as methane halides and tetraalkylsilanes
- compounds that are gasified by thermal decomposition such as azodicarboxylic amides.
- the average particle size of the first hollow particles may be 5 ⁇ m or more, 10 ⁇ m or more, or 20 ⁇ m or more, and may be 50 ⁇ m or less, 40 ⁇ m or less, or 30 ⁇ m or less.
- the average particle size of the first hollow particles is measured by a laser diffraction / scattering method (for example, using "SALD-7500 nano” manufactured by Shimadzu Corporation).
- the expansion start temperature of the first hollow particles is preferably 70 ° C. or higher, 100 ° C. or higher. It is 130 ° C. or higher, or 160 ° C. or higher, preferably 260 ° C. or lower.
- the expansion start temperature of the first hollow particles is 3 in the profile of temperature (horizontal axis) -volume change (vertical axis) when the temperature is raised at a temperature rising rate of 10 ° C./min by thermomechanical analysis (TMA). It means the temperature at the intersection of the tangent line at the point where the volume change occurs by more than double / 5 ° C. and the straight line (horizontal axis) where the volume change is zero (initial volume).
- the maximum expansion temperature of the first hollow particles is preferably 100 ° C. or higher, 150 ° C. or higher, 200 ° C. or higher, or 220 ° C. or higher. Preferably, it is 290 ° C. or lower, 280 ° C. or lower, or 270 ° C. or lower.
- the maximum expansion temperature of the first hollow particles means the temperature at which the volume expansion ratio becomes maximum when measured by thermomechanical analysis (TMA) at a heating rate of 10 ° C./min.
- the content of the first hollow particles is preferably 1% by mass or more, more preferably 5% by mass or more, and further, based on the total mass of the composition, from the viewpoint of facilitating the removal of the composition after the reflow step. It may be preferably 8% by mass or more, 20% by mass or less, or 15% by mass or less.
- the content of the first hollow particles is preferably 1% by volume or more, more preferably 2% by volume or more, and further, based on the total volume of the composition, from the viewpoint of facilitating the removal of the composition after the reflow step. It is preferably 3% by volume or more, particularly preferably 4% by volume or more, and may be, for example, 10% by volume or less, 7% by volume or less, or 5% by volume or less.
- the second hollow particle is a hollow particle other than the first hollow particle. That is, the second hollow particle is a hollow particle having a maximum volume expansion ratio of less than 10 times the volume at 25 ° C.
- the maximum volume expansion factor of the second hollow particle is measured in the same manner as the maximum volume expansion ratio of the first hollow particle.
- the outer shell of the second hollow particle may be made of a polymer or an inorganic material.
- the outer shell is preferably composed of a polymer, more preferably a thermoplastic polymer.
- the thermoplastic polymer may be a polymer containing, for example, acrylonitrile, vinylidene chloride, or the like as a monomer unit.
- the inorganic material may be, for example, inorganic glass such as borosilicate glass (sodium borosilicate glass or the like), aluminosilicate glass, or a composite glass thereof.
- the thickness of the outer shell may be 0.005 ⁇ m or more, and may be 15 ⁇ m or less.
- a gas is contained in the hollow portion of the second hollow particle.
- the second hollow particles are in such a state under normal temperature and pressure (for example, at least at atmospheric pressure and 30 ° C.).
- the hollow portion of the second hollow particle may further contain a liquid.
- the components contained in the hollow portion of the second hollow particle include, for example, propane, propylene, butene, normal butane, isobutane, normal pentane, isopentan, neopentane, normal hexane, isohexane, heptane, isooctane, normal octane, and isoalkane.
- hydrocarbons such as petroleum ethers
- low boiling point compounds such as methane halides and tetraalkylsilanes
- decomposition products of compounds gasified by thermal decomposition such as azodicarboxylic amides.
- the component contained in the hollow portion of the second hollow particle may be air.
- the average particle size of the second hollow particles is preferably 150 ⁇ m or less, more preferably 120 ⁇ m or less, still more preferably 100 ⁇ m or less, and for example, 5 ⁇ m or more, 10 ⁇ m or more, 20 ⁇ m from the viewpoint of enhancing heat insulating properties. It may be the above, or 30 ⁇ m or more.
- the average particle size of the second hollow particle is measured by a laser diffraction / scattering method (for example, using "SALD-7500 nano” manufactured by Shimadzu Corporation).
- the density of the second hollow particles may be 500 kg / m 3 or less, 300 kg / m 3 or less, 100 kg / m 3 or less, 50 kg / m 3 or less, or 40 kg / m 3 or less, and 10 kg / m 3 or more. Alternatively, it may be 20 kg / m 3 or more.
- the content of the second hollow particles is preferably 1% by mass or more, more preferably 3% by mass or more, still more preferably 3% by mass or more, based on the total mass of the composition, from the viewpoint of enhancing the heat insulating property of the composition. It may be 5% by mass or more, for example, 20% by mass or less.
- the content of the second hollow particles is preferably 50% by volume or more, more preferably 60% by volume or more, for example, 95% by volume, based on the total volume of the composition, from the viewpoint of enhancing the heat insulating property of the composition. It may be less than or equal to%.
- the total content of the hollow particles is, for example, 5% by mass or more, 10% by mass or more, or 15% by mass or more based on the total mass of the composition. It may be 40% by mass or less, 30% by mass or less, or 20% by mass or less.
- the total content of the hollow particles is, for example, 50% by volume or more, 60% by volume or more, or 70% by volume or more based on the total volume of the composition. It may be 95% by volume or less.
- the composition may further contain another polymerizable compound that can be copolymerized with the compound represented by the above-mentioned formula (1) for the purpose of adjusting the physical properties of the composition.
- the other polymerizable compound may be, for example, a compound having one (meth) acryloyl group.
- the compound may be, for example, an alkyl (meth) acrylate.
- Other polymerizable compounds include, in addition to one (meth) acryloyl group, an aromatic hydrocarbon group, a group containing a polyoxyalkylene chain, a group containing a heterocycle, an alkoxy group, a phenoxy group, a group containing a silane group, and the like. It may be a compound having a group containing a siloxane bond, a halogen atom, a hydroxyl group, a carboxyl group, an amino group, or an epoxy group.
- the viscosity of the composition can be adjusted by containing the alkyl (meth) acrylate in the composition.
- the composition contains a compound having a hydroxyl group, a carboxyl group, an amino group, or an epoxy group in addition to the (meth) acryloyl group, the adhesion of the composition and the heat insulating material to the members can be further improved. ..
- the alkyl group (alkyl group portion other than the (meth) acryloyl group) in the alkyl (meth) acrylate may be linear, branched or alicyclic.
- the number of carbon atoms of the alkyl group may be, for example, 1 to 30.
- the number of carbon atoms of the alkyl group may be 1 to 11, 1 to 8, 1 to 6, or 1 to 4, and may be 12 to 30, 12 to 28, 12 to 24, 12 to 22, 12 to 18, or 12. It may be up to 14.
- alkyl (meth) acrylate having a linear alkyl group examples include methyl (meth) acrylate, ethyl (meth) acrylate, propyl (meth) acrylate, butyl (meth) acrylate, pentyl (meth) acrylate, and n-hexyl (.
- a linear alkyl group having 1 to 11 carbon atoms such as meth) acrylate, n-heptyl (meth) acrylate, octyl (meth) acrylate, nonyl (meth) acrylate, decyl (meth) acrylate, or undecyl (meth) acrylate.
- alkyl (meth) acrylate having a branched alkyl group examples include s-butyl (meth) acrylate, t-butyl (meth) acrylate, isobutyl (meth) acrylate, isopentyl (meth) acrylate, isoamyl (meth) acrylate, and isooctyl.
- Alkyl (meth) acrylates having branched alkyl groups having 1 to 11 carbon atoms such as (meth) acrylates, 2-ethylhexyl (meth) acrylates, isononyl (meth) acrylates, and isodecyl (meth) acrylates, isomiristyl (meth) acrylates.
- alkyl (meth) acrylate having an alicyclic alkyl group examples include cyclohexyl (meth) acrylate, 3,3,5-trimethylcyclohexyl (meth) acrylate, isobornyl (meth) acrylate, and terpene (meth). ) Acrylate, dicyclopentanyl (meth) acrylate and the like can be mentioned.
- Examples of the compound having a (meth) acryloyl group and an aromatic hydrocarbon group include benzyl (meth) acrylate and the like.
- Examples of the compound having a (meth) acryloyl group and a group containing a polyoxyalkylene chain include polyethylene glycol (meth) acrylate, methoxypolyethylene glycol (meth) acrylate, polypropylene glycol (meth) acrylate, and methoxypolypropylene glycol (meth) acrylate.
- Examples thereof include polybutylene glycol (meth) acrylate and methoxypolybutylene glycol (meth) acrylate.
- Examples of the compound having a (meth) acryloyl group and a group containing a heterocycle include tetrahydrofurfuryl (meth) acrylate and the like.
- Examples of the compound having a (meth) acryloyl group and an alkoxy group include 2-methoxyethyl acrylate and the like.
- Examples of the compound having a (meth) acryloyl group and a phenoxy group include phenoxyethyl (meth) acrylate and the like.
- Examples of the compound having a (meth) acryloyl group and a group containing a silane group include 3-acryloyloxypropyltriethoxysilane, 10-methacryloyloxydecyltrimethoxysilane, 10-acryloyloxydecyltrimethoxysilane, and 10-methacryloyloxydecyl. Examples thereof include triethoxysilane, 10-acryloyloxydecyltriethoxysilane, and the like.
- Examples of the compound having a (meth) acryloyl group and a group containing a siloxane bond include silicone (meth) acrylate and the like.
- Examples of the compound having a (meth) acryloyl group and a halogen atom include trifluoromethyl (meth) acrylate, 2,2,2-trifluoroethyl (meth) acrylate, and 1,1,1,3,3,3-hexafluoro.
- Examples of the compound having a (meth) acryloyl group and a hydroxyl group include 2-hydroxyethyl (meth) acrylate, 2-hydroxypropyl (meth) acrylate, 3-hydroxypropyl (meth) acrylate, and 2-hydroxybutyl (meth) acrylate.
- Hydroxyalkyl (meth) acrylates such as 4-hydroxybutyl (meth) acrylate, 6-hydroxyhexyl (meth) acrylate, 8-hydroxyoctyl (meth) acrylate, 10-hydroxydecyl (meth) acrylate, and 12-hydroxylauryl (meth) acrylate.
- Acrylate examples thereof include hydroxyalkylcycloalkane (meth) acrylates such as (4-hydroxymethylcyclohexyl) methyl (meth) acrylate.
- Examples of the compound having a (meth) acryloyl group and a carboxyl group include (meth) acrylic acid, carboxyethyl (meth) acrylate, carboxypentyl (meth) acrylate, and monohydroxyethyl phthalate acrylate (for example, manufactured by Toa Synthetic Co., Ltd. Aronix M5400 "), 2-acryloyloxyethyl succinate (for example,” NK ester A-SA “manufactured by Shin-Nakamura Chemical Co., Ltd.) and the like.
- Examples of the compound having a (meth) acryloyl group and an amino group include N, N-dimethylaminoethyl (meth) acrylate, N, N-diethylaminoethyl (meth) acrylate, and N, N-dimethylaminopropyl (meth) acrylate. , N, N-diethylaminopropyl (meth) acrylate and the like.
- Examples of the compound having a (meth) acryloyl group and an epoxy group include glycidyl (meth) acrylate, glycidyl ⁇ -ethyl (meth) acrylate, glycidyl ⁇ -n-propyl (meth) acrylate, and ⁇ -n-butyl.
- composition may contain, as the polymerizable compound, one of the above-mentioned other polymerizable compounds in addition to the compound represented by the formula (1), or may contain two or more of them.
- the content of the polymerizable compound other than the compound represented by the formula (1) is, for example, 1% by mass or more, 5% by mass or more, 10% by mass or more, 20% by mass or more, based on the total amount of the composition. Alternatively, it may be 30% by mass or more, 60% by mass or less, 50% by mass or less, or 40% by mass or less.
- the content of the polymerizable compound (total content of the compound represented by the formula (1) and other polymerizable compounds) is, for example, 40% by mass or more, 50% by mass or more, and 60% by mass based on the total amount of the composition. % Or more, 70% by mass or more, 95% by mass or less, or 90% by mass or less.
- the composition may further contain a polymerization initiator.
- the polymerization initiator may be, for example, a thermal polymerization initiator that generates radicals by heat, a photopolymerization initiator that generates radicals by light, or the like.
- the polymerization initiator is preferably a thermal polymerization initiator.
- the composition contains a thermal polymerization initiator
- a cured product of the composition can be obtained by applying heat to the composition.
- the composition may be a composition that is cured by heating at preferably 105 ° C. or higher, more preferably 110 ° C. or higher, still more preferably 115 ° C. or higher, and for example, 200 ° C. or lower, 190 ° C. or lower, or
- the composition may be cured by heating at 180 ° C. or lower.
- the heating time for heating the composition may be appropriately selected according to the composition of the composition so that the composition is suitably cured.
- thermal polymerization initiator examples include azo compounds such as azobisisobutyronitrile, azobis-4-methoxy-2,4-dimethylvaleronitrile, azobiscyclohexanone-1-carbonitrile, and azodibenzoyl, benzoyl peroxide, and peroxide.
- azo compounds such as azobisisobutyronitrile, azobis-4-methoxy-2,4-dimethylvaleronitrile, azobiscyclohexanone-1-carbonitrile, and azodibenzoyl, benzoyl peroxide, and peroxide.
- Lauroyl oxide di-t-butyl peroxide, di-t-hexyl peroxide, di-t-butylperoxyhexahydroterephthalate, t-butylperoxy-2-ethylhexanoate, 1,1-t- Examples thereof include organic peroxides such as butylperoxy-3,3,5-trimethylcyclohexane and t-butylperoxyisopropyl carbonate.
- the thermal polymerization initiator may be used alone or in combination of two or more.
- the composition contains a photopolymerization initiator
- a photopolymerization initiator for example, by irradiating the composition with light (for example, light containing at least a partial wavelength of 200 to 400 nm (ultraviolet light)), a cured product of the composition is obtained.
- light for example, light containing at least a partial wavelength of 200 to 400 nm (ultraviolet light)
- the light irradiation conditions may be appropriately set depending on the type of photopolymerization initiator.
- the photopolymerization initiator examples include a benzoin ether-based photopolymerization initiator, an acetophenone-based photopolymerization initiator, an ⁇ -ketol-based photopolymerization initiator, an aromatic sulfonyl chloride-based photopolymerization initiator, and a photoactive oxime-based photopolymerization initiator.
- Benzoin-based photopolymerization initiator Benzyl-based photopolymerization initiator, benzophenone-based photopolymerization initiator, Ketal-based photopolymerization initiator, thioxanthone-based photopolymerization initiator, acylphosphine oxide-based photopolymerization initiator, and the like. ..
- benzoin ether-based photopolymerization initiator examples include benzoin methyl ether, benzoin ethyl ether, benzoin propyl ether, benzoin isopropyl ether, benzoin isobutyl ether, and 2,2-dimethoxy-1,2-diphenylethan-1-one (for example, BASF).
- benzoin methyl ether examples include benzoin methyl ether, benzoin ethyl ether, benzoin propyl ether, benzoin isopropyl ether, benzoin isobutyl ether, and 2,2-dimethoxy-1,2-diphenylethan-1-one (for example, BASF).
- ISOSF 2,2-dimethoxy-1,2-diphenylethan-1-one
- acetophenone-based photopolymerization initiator examples include 1-hydroxycyclohexylphenyl ketone (for example, "Irgacure 184" manufactured by BASF), 4-phenoxydichloroacetophenone, 4-t-butyl-dichloroacetophenone, 1- [4- (2- (2-). Hydroxyethoxy) -phenyl] -2-hydroxy-2-methyl-1-propane-1-one (for example, "Irgacure 2959” manufactured by BASF), 2-hydroxy-2-methyl-1-phenyl-propane-1- On (for example, "Irgacure 1173” manufactured by BASF), methoxyacetophenone and the like can be mentioned.
- 1-hydroxycyclohexylphenyl ketone for example, "Irgacure 184" manufactured by BASF
- 4-phenoxydichloroacetophenone 4-t-butyl-dichloroacetophenone
- Examples of the ⁇ -ketol-based photopolymerization initiator include 2-methyl-2-hydroxypropiophenone, 1- [4- (2-hydroxyethyl) -phenyl] -2-hydroxy-2-methylpropiophenone, and the like. Can be mentioned.
- Examples of the aromatic sulfonyl chloride-based photopolymerization initiator include 2-naphthalene sulfonyl chloride and the like.
- Examples of the photoactive oxime-based photopolymerization initiator include 1-phenyl-1,1-propanedione-2- (o-ethoxycarbonyl) -oxime.
- Examples of the benzoin-based photopolymerization initiator include benzoin and the like.
- Examples of the benzyl-based photopolymerization initiator include benzyl and the like.
- Examples of the benzophenone-based photopolymerization initiator include benzophenone, benzoylbenzoic acid, 3,3'-dimethyl-4-methoxybenzophenone, polyvinylbenzophenone, ⁇ -hydroxycyclohexylphenylketone and the like.
- Examples of the ketal-based photopolymerization initiator include benzyldimethyl ketal and the like.
- Examples of the thioxanthone-based photopolymerization initiator include thioxanthone, 2-chlorothioxanthone, 2-methylthioxanthone, 2,4-dimethylthioxanthone, isopropylthioxanthone, 2,4-dichlorothioxanthone, 2,4-diethylthioxanthone, isopropylthioxanthone, 2, Examples thereof include 4-diisopropylthioxanthone and dodecylthioxanthone.
- acylphosphine-based photopolymerization initiator examples include bis (2,6-dimethoxybenzoyl) phenylphosphine oxide, bis (2,6-dimethoxybenzoyl) (2,4,4-trimethylpentyl) phosphine oxide, and bis (2,).
- 6-Dimethoxybenzoyl) -n-butylphosphinoxide bis (2,6-dimethoxybenzoyl)-(2-methylpropan-1-yl) phosphinoxide, bis (2,6-dimethoxybenzoyl)-(1-methylpropane) -1-yl) phosphinoxide, bis (2,6-dimethoxybenzoyl) -t-butylphosphinoxide, bis (2,6-dimethoxybenzoyl) cyclohexylphosphinoxide, bis (2,6-dimethoxybenzoyl) octylphosphinoxide, Bis (2-methoxybenzoyl) (2-methylpropan-1-yl) phosphinoxide, bis (2-methoxybenzoyl) (1-methylpropan-1-yl) phosphinoxide, bis (2,6-diethoxybenzoyl) (2-Methylpropan-1-yl) pho
- the above-mentioned photopolymerization initiator may be used alone or in combination of two or more.
- the content of the polymerization initiator is preferably 0.01 part by mass or more, more preferably 0.02 part by mass or more, based on 100 parts by mass of the total content of the polymerizable component from the viewpoint of suitably advancing the polymerization. , More preferably 0.05 parts by mass or more.
- the content of the polymerization initiator is such that the molecular weight of the polymer in the cured product of the composition is in a suitable range, and from the viewpoint of suppressing decomposition products, the content of the polymerizable component is 100 parts by mass in total. It is preferably 10 parts by mass or less, more preferably 5 parts by mass or less, still more preferably 3 parts by mass or less, and particularly preferably 1 part by mass or less.
- the composition can contain a plasticizer as an additive.
- a plasticizer as an additive.
- the adhesion of the composition and the elongation of the cured product can be further enhanced.
- the plasticizer include butadiene rubber, isoprene rubber, silicone rubber, styrene butadiene rubber, chloroprene rubber, nitrile rubber, butyl rubber, ethylene propylene rubber, urethane rubber, acrylic resin, rosin resin, terpene resin and other tack fires, or poly.
- examples include alkylene glycol.
- the content of the plasticizer may be 0.1 part by mass or more, 1 part by mass or more, or 3 parts by mass or more, and 20 parts by mass or less, 15 parts by mass with respect to 100 parts by mass of the total content of the polymerizable component. It may be 10 parts by mass or less, 12 parts by mass or less, or 10 parts by mass or less.
- the composition can further contain other additives, if necessary.
- Other additives include, for example, antioxidants, surface treatment agents (eg, silane coupling agents), dispersants, curing accelerators, colorants, crystal nucleating agents, heat stabilizers, foaming agents, flame retardants, vibration damping agents. Examples thereof include agents, dehydrating agents, flame retardant aids (for example, metal oxides) and the like.
- the content of the other additives may be 0.1% by mass or more and 30% by mass or less based on the total amount of the composition.
- the composition is preferably liquid at 25 ° C. As a result, it can be suitably applied to the surface of an object such as a non-volatile semiconductor storage device, and the adhesion to the applied surface can be improved.
- the composition may be solid at 25 ° C, in which case it is preferably liquid by heating (eg at 50 ° C or higher).
- the composition may be applied in a liquid state and then cured, which can prevent the composition from causing dripping and pump-out phenomena.
- composition set The above-mentioned composition may be in the state of a plurality of liquid type compositions (composition set).
- the composition set according to one embodiment is a composition set including a first liquid containing an oxidizing agent and a second liquid containing a reducing agent. At least one of the first liquid and the second liquid contains the compound represented by the above-mentioned formula (1). Further, at least one of the first liquid and the second liquid contains the above-mentioned hollow particles.
- composition set according to the present embodiment by mixing the first liquid and the second liquid, a cured product of the mixture of the first liquid and the second liquid can be immediately obtained. That is, according to the composition set, a cured product of the composition can be obtained at a high speed.
- the first liquid preferably contains an oxidizing agent, a polymerizable compound represented by the formula (1) and hollow particles
- the second liquid is a reducing agent and a polymerization represented by the formula (1). Contains sex compounds and hollow particles.
- the content of the compound represented by the formula (1) based on the total amount of liquids constituting the composition set (for example, in the case of a two-component composition set, the total amount of the first liquid and the second liquid). May be the same as the range of the content of the compound represented by the formula (1) based on the total amount of the above-mentioned composition. The same applies to the content of hollow particles contained in the composition set.
- the oxidizing agent contained in the first liquid has a role as a polymerization initiator (radical polymerization initiator).
- the oxidizing agent may be, for example, an organic peroxide or an azo compound.
- the organic peroxide may be, for example, hydroperoxide, peroxydicarbonate, peroxyester, peroxyketal, dialkyl peroxide, diacyl peroxide or the like.
- the azo compound may be AIBN (2,2'-azobisisobutyronitrile), V-65 (azobisdimethylvaleronitrile) or the like.
- AIBN 2,2'-azobisisobutyronitrile
- V-65 azobisdimethylvaleronitrile
- hydroperoxide examples include diisopropylbenzene hydroperoxide and cumene hydroperoxide.
- peroxydicarbonate examples include di-n-propyl peroxydicarbonate, diisopropylperoxydicarbonate, bis (4-t-butylcyclohexyl) peroxydicarbonate, di-2-ethoxymethoxyperoxydicarbonate, and di-2-ethoxymethoxyperoxydicarbonate.
- examples thereof include (2-ethylhexylperoxy) dicarbonate, dimethoxybutylperoxydicarbonate, and di (3-methyl-3methoxybutylperoxy) dicarbonate.
- peroxyester examples include cumyl peroxyneodecanoate, 1,1,3,3-tetramethylbutylperoxyneodecanoate, 1-cyclohexyl-1-methylethylperoxyneodecanoate, and t.
- peroxyketal examples include 1,1-bis (t-hexylperoxy) -3,3,5-trimethylcyclohexane, 1,1-bis (t-hexylperoxy) cyclohexane, and 1,1-.
- 1,1-bis (t-hexylperoxy) -3,3,5-trimethylcyclohexane 1,1-bis (t-butylperoxy) cyclododecane
- 2,2-bis (t-butylperoxy) decane etc.
- dialkyl peroxide examples include ⁇ , ⁇ '-bis (t-butylperoxy) diisopropylbenzene, dicumyl peroxide, 2,5-dimethyl-2,5-di (t-butylperoxy) hexane, and t-. Butylcumylperoxide and the like can be mentioned.
- diacyl peroxide examples include isobutyl peroxide, 2,4-dichlorobenzoyl peroxide, 3,5,5-trimethylhexanoyl peroxide, octanoyl peroxide, lauroyl peroxide, stearoyl peroxide, and dichloromethane peroxide. , Benzoyl peroxide, toluene, benzoyl peroxide and the like.
- the oxidizing agent is preferably a peroxide, more preferably a hydroperoxide, and further preferably a cumene hydroperoxide.
- the content of the oxidizing agent may be 0.1% by mass or more, 0.5% by mass or more, or 1% by mass or more, based on the total amount of the liquid constituting the composition set, and may be 10% by mass or less and 5% by mass. % Or less, or 3% by mass or less.
- the reducing agent contained in the second liquid may be, for example, a tertiary amine, a thiourea derivative, a transition metal salt, or the like.
- a tertiary amine include triethylamine, tripropylamine, tributylamine, N, N-dimethylparatoluidine and the like.
- the thiourea derivative include 2-mercaptobenzimidazole, methylthiourea, dibutylthiourea, tetramethylthiourea, ethylenethiourea and the like.
- the transition metal salt include cobalt naphthenate, copper naphthenate, vanadylacetylacetonate and the like.
- the reducing agent may be used alone or in combination of two or more.
- the reducing agent is preferably a thiourea derivative or a transition metal salt from the viewpoint of excellent curing rate.
- the thiourea derivative may be, for example, ethylene thiourea.
- the transition metal salt is preferably vanadyl acetylacetonate.
- the content of the reducing agent may be 0.05% by mass or more, 0.1% by mass or more, or 0.3% by mass or more, based on the total amount of the liquid constituting the composition set, and may be 5% by mass or less. It may be 3% by mass or less, or 1% by mass or less.
- the composition set may further contain other polymerizable compounds and additives that can be used in the above-mentioned compositions. These components may be contained in one or both of the first liquid and the second liquid, and may be contained in a third liquid different from the first liquid and the second liquid. The content of these components based on the total amount of liquid constituting the composition set may be the same as the range of the contents of these components based on the total amount of the composition described above.
- the sheet according to one embodiment contains a cured product of the above-mentioned composition or a cured product of a mixture of the composition set.
- the sheet of the present embodiment is obtained, for example, by advancing the polymerization of the polymerizable component and curing it in the above-mentioned composition or composition set.
- the thickness of the sheet is not particularly limited, and may be, for example, 200 ⁇ m or more and 2000 ⁇ m or less.
- B-1 "Matsumoto Microsphere (registered trademark) F-190SSD” manufactured by Matsumoto Yushi Seiyaku Co., Ltd. (average particle size: 10 to 15 ⁇ m, maximum volume expansion ratio: 50 times or more, expansion start temperature: 155 to 165 ° C. , Maximum expansion temperature: 210-220 ° C)
- B-2 "Matsumoto Microsphere (registered trademark) F-190D” manufactured by Matsumoto Yushi Seiyaku Co., Ltd. (average particle size: 30-40 ⁇ m, maximum volume expansion ratio: 50 times or more, expansion start temperature: 160-170 ° C.
- B-3 "D-210D” manufactured by Matsumoto Yushi Seiyaku Co., Ltd. (average particle size: 35-40 ⁇ m, maximum volume expansion ratio: 50 times or more, expansion start temperature: 200-210 ° C, maximum expansion temperature: 220-230) °C)
- B-4 "Matsumoto Microsphere (registered trademark) F-230D” manufactured by Matsumoto Yushi Seiyaku Co., Ltd. (average particle size: 20 to 35 ⁇ m, maximum volume expansion ratio: 50 times or more, expansion start temperature: 180 to 190 ° C.
- C-1 "Expancel (registered trademark) 920DE80d30” manufactured by Nippon Philite Co., Ltd. (average particle diameter 60 to 90 ⁇ m, density 30 ⁇ 3 kg / m 3 , maximum volume expansion ratio: less than 5 times)
- C-2 Hollow glass beads "Q-CEL (registered trademark) 5020” manufactured by Potters Barotini Co., Ltd. (particle diameter 5 to 110 ⁇ m, density 200 kg / m 3 , maximum volume expansion factor: less than 5 times)
- D-1 Dicyclopentanylacryllate ("Funkril (registered trademark) FA-513A” manufactured by Showa Denko Materials Co., Ltd.)
- D-2 4-Hydroxybutyl acrylate (manufactured by Osaka Organic Chemical Industry Co., Ltd.)
- E Polymerization initiator (NOF CORPORATION "Perbutyl (registered trademark) ⁇ ")
- Phenolic antioxidant (“ADEKA STAB (registered trademark) AO-80” manufactured by ADEKA Corporation)
- G Surface conditioner (“BYK (registered trademark) 350” manufactured by BYK Co., Ltd.)
- composition and sheet Each component was mixed at the compounding ratio shown in Table 1 to obtain a composition.
- two substrates were prepared in which the release-processed PET sheet (“A31” manufactured by Toyobo Co., Ltd.) was placed with the release-processed surface facing upward on the glass plate.
- a 10 cm ⁇ 15 cm ⁇ 1.0 mm silicone rubber mold was placed on the PET sheet of one of the substrates, and the inside of the mold was filled with the composition.
- the composition was cured by heating with the release-treated surface of the PET sheet of the other substrate on the composition side, covering with the other substrate, and then heating at 135 ° C. for 15 minutes.
- a sheet (thickness 1.0 mm) of a cured product of the compositions according to Examples 1 to 12 and Comparative Example 1 was obtained.
- Table 1 shows the measurement results of each physical property of the sheets of Examples 1 to 12 and Comparative Example 1.
- the notation that the adhesive strength is " ⁇ 200" (N / m) indicates that the sheet was cohesively broken when it was attempted to be peeled off and could not be peeled off.
- the sheets of Examples 1 to 12 had low elasticity and excellent elongation. Further, since the sheets of Examples 2 to 11 have high adhesive strength in the state of being cooled to room temperature after being heated at 220 ° C. for 120 seconds in [2], they can be suitably adhered to the apparatus during the reflow process, and [3] ] It was found that the adhesive strength was small after heating at 260 ° C. for 30 seconds and then cooled to room temperature, so that the adhesive strength could be easily removed after the reflow process.
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Abstract
Description
[2]ポリオキシアルキレン鎖がオキシエチレン基を含む、[1]に記載の組成物。
[3]ポリオキシアルキレン鎖がオキシプロピレン基を含む、[1]に記載の組成物。
[4]ポリオキシアルキレン鎖が、オキシエチレン基及びオキシプロピレン基を含む共重合鎖である、[1]に記載の組成物。
[5]共重合鎖がランダム共重合鎖である、[4]に記載の組成物。
[6]前記中空粒子が、熱膨張性の中空粒子である第一の中空粒子と、第一の中空粒子以外の中空粒子である第二の中空粒子と、を含む、[1]~[5]のいずれかに記載の組成物。
[7][1]~[6]のいずれかに記載の組成物の硬化物を含む、シート。
・測定機器:HLC-8320GPC(製品名、東ソー(株)製)
・分析カラム:TSKgel SuperMultipore HZ-H(3本連結)(製品名、東ソー(株)製)
・ガードカラム:TSKguardcolumn SuperMP(HZ)-H(製品名、東ソー(株)製)
・溶離液:THF
・測定温度:25℃
一実施形態に係る組成物は、下記式(1)で表される化合物と、中空粒子と、を含有する。
一実施形態において、組成物が上記式(1)で表される化合物を含むことにより、組成物の硬化物は低弾性で伸びに優れ、被着体への追従性を高めることができる。
中空粒子は、外殻と中空部とを有している。組成物が中空粒子を含むことにより、組成物の断熱性が向上し、組成物を断熱材として好適に利用することができる。中空粒子としては、熱膨張性の中空粒子である第一の中空粒子、及び、当該第一の中空粒子以外の中空粒子である第二の中空粒子が挙げられる。中空粒子は、第一の中空粒子及び第二の中空粒子のいずれか一方又は両方を含んでいてよく、好ましくは第一の中空粒子及び第二の中空粒子の両方を含んでいる。
第一の中空粒子は、熱により膨張する(熱膨張性の)中空粒子である。本明細書における熱膨張性の中空粒子とは、25℃における体積に対する最大体積膨張倍率が10倍以上である中空粒子である。第一の中空粒子を用いると、リフロー工程において、第一の中空粒子が熱によって膨張することにより、断熱材と装置との界面の接着面積が減少し、リフロー工程後に組成物を容易に除去することができる。
第二の中空粒子は、第一の中空粒子以外の中空粒子である。すなわち、第二の中空粒子は、25℃における体積に対する最大体積膨張倍率が10倍未満である中空粒子である。第二の中空粒子を用いることにより、組成物の断熱性が向上し、組成物を断熱材として好適に利用することができる。第二の中空粒子の最大体積膨張倍率は、第一の中空粒子の最大体積膨張倍率と同じ方法で測定される。
密度=初期投入量(kg)/安定時体積(m3)
上述した組成物は、複数液型の組成物(組成物セット)の状態であってもよい。一実施形態に係る組成物セットは、酸化剤を含有する第一液と、還元剤を含有する第二液とを備える組成物セットである。第一液及び第二液の少なくとも一方は、上述した式(1)で表される化合物を含有する。また、第一液及び第二液の少なくとも一方は、上述した中空粒子を含有する。第一液と第二液を混合することにより、酸化剤及び還元剤が反応して遊離ラジカルが発生し、重合性成分の重合が進行する。本実施形態に係る組成物セットによれば、第一液と第二液を混合することにより、直ちに第一液と第二液との混合物の硬化物が得られる。すなわち、組成物セットによれば、速い速度で組成物の硬化物が得られる。
一実施形態に係るシートは、上述した組成物の硬化物、又は、組成物セットの混合物の硬化物を含む。
(式(1)で表される化合物)
A:下記に示す手順で合成された下記式(1-5)で表される化合物(重量平均分子量:15000、式(1-5)中のm1+m2が概ね252±5、n1+n2が概ね63±5の整数(ただし、m1、m2、n1及びn2はそれぞれ2以上の整数であり、m1+n1≧100、m2+n2≧100)である混合物、25℃における粘度:50Pa・s)
a:変性エポキシアクリレート(ダイセル・オルネクス(株)製「EBECRYL 3708」)
B-1:松本油脂製薬(株)製「マツモトマイクロスフェアー(登録商標) F-190SSD」(平均粒子径:10~15μm、最大体積膨張倍率:50倍以上、膨張開始温度:155~165℃、最大膨張温度:210~220℃)
B-2:松本油脂製薬(株)製「マツモトマイクロスフェアー(登録商標) F-190D」(平均粒子径:30~40μm、最大体積膨張倍率:50倍以上、膨張開始温度:160~170℃、最大膨張温度:210~220℃)
B-3:松本油脂製薬(株)製「D-210D」(平均粒子径:35~40μm、最大体積膨張倍率:50倍以上、膨張開始温度:200~210℃、最大膨張温度:220~230℃)
B-4:松本油脂製薬(株)製「マツモトマイクロスフェアー(登録商標) F-230D」(平均粒子径:20~35μm、最大体積膨張倍率:50倍以上、膨張開始温度:180~190℃、最大膨張温度:220~240℃)
B-5:松本油脂製薬(株)製「マツモトマイクロスフェアー(登録商標) F-260D」(平均粒子径:20~35μm、最大体積膨張倍率:50倍以上、膨張開始温度:190~200℃、最大膨張温度:250~260℃)
C-1:日本フィライト(株)製「Expancel(登録商標) 920DE80d30」(平均粒子径60~90μm、密度30±3kg/m3、最大体積膨張倍率:5倍未満)
C-2:ポッターズ・バロティーニ(株)製中空ガラスビーズ「Q-CEL(登録商標)5020」(粒子径5~110μm、密度200kg/m3、最大体積膨張倍率:5倍未満)
D-1:ジシクロペンタニルアクリレ-ト(昭和電工マテリアルズ(株)製「ファンクリル(登録商標) FA-513A」)
D-2:4-ヒドロキシブチルアクリレート(大阪有機化学工業(株)製)
E:重合開始剤(日油(株)製「パーブチル(登録商標)О」)
F:フェノール系酸化防止剤((株)ADEKA製「アデカスタブ(登録商標)AO-80」)
G:表面調整剤(BYK(株)製「BYK(登録商標)350」)
撹拌機、温度計、窒素ガス導入管、排出管及び加熱ジャケットから構成された500mLフラスコを反応器とし、ポリオキシアルキレン鎖を有するグリコール(三洋化成(株)製「ニューポール75H-90000」)225g、トルエン300gを反応器に加え、45℃、撹拌回転数250回/分で撹拌し、窒素を100mL/分で流し、30分撹拌した。その後、25℃に降温し、降温完了後、塩化アクリロイル2.9gを反応器に滴下し、30分撹拌した。その後、トリエチルアミン3.8gを滴下し、2時間撹拌した。その後、45℃に昇温し、2時間反応させた。反応液を濾過し、濾液を脱溶し、式(1-5)で表される化合物を得た。
表1に示す配合比で各成分を混合し、組成物を得た。次に、離型処理されたPETシート(東洋紡(株)製「A31」)の離型処理面をガラス板上に対して上向きに載せた基板を2枚準備した。一方の基板のPETシート上に、10cm×15cm×1.0mmのシリコーンゴム製型枠を設置し、当該型枠の内側に組成物を充填した。さらに、他方の基板のPETシートの離型処理面を組成物側にして、他方の基板で上蓋をした後に、135℃の条件で15分間加熱して、組成物を硬化させた。これにより、実施例1~12及び比較例1に係る組成物の硬化物のシート(厚さ1.0mm)を得た。
作製したシートをPETシートに挟まれた状態で、8cm×13cm×1.0mmに切断し、レファレンスプレートと測定プローブで挟み込み、迅速熱伝導率計(京都電子工業(株)製「QTM-710」、測定プローブPD-11N、薄膜測定モード)にて25℃の条件で熱伝導率を測定した。レファレンスは、離型処理付PET(東洋紡(株)製「A31」)を2枚重ねてレファレンスプレートと測定プローブで挟みこみ測定した。
引っ張り試験機((株)島津製作所製「Autograph EZ-TEST EZS」)を用いて、各硬化物を含むシートの25℃における破断伸び率及び引張弾性率を測定した。測定においては、0.2mm(膜厚)×5mm(幅)×30mm(長さ)の形状の硬化物について、チャック間距離20mm、引張速度5mm/分の条件で、JIS K7161に基づき測定した。
作製したシートをスライドガラス板に貼り付け15分以上静置した後、
[1]室温(20~25℃)で非加熱の状態、
[2]220℃で120秒加熱後室温に冷却した状態、及び
[3]260℃で30秒加熱後、室温に冷却した状態
の3種のサンプルを用意した。これらの各サンプルについて、(株)島津製作所製「EZ Test EZ-S」を用いて、粘着力を測定した(90°ピール、引張速度:50mm/分)。
Claims (7)
- 前記ポリオキシアルキレン鎖がオキシエチレン基を含む、請求項1に記載の組成物。
- 前記ポリオキシアルキレン鎖がオキシプロピレン基を含む、請求項1に記載の組成物。
- 前記ポリオキシアルキレン鎖が、オキシエチレン基及びオキシプロピレン基を含む共重合鎖である、請求項1に記載の組成物。
- 前記共重合鎖がランダム共重合鎖である、請求項4に記載の組成物。
- 前記中空粒子が、
熱膨張性の中空粒子である第一の中空粒子と、
前記第一の中空粒子以外の中空粒子である第二の中空粒子と、
を含む、請求項1~5のいずれか一項に記載の組成物。 - 請求項1~6のいずれか一項に記載の組成物の硬化物を含む、シート。
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| WO2016076209A1 (ja) * | 2014-11-12 | 2016-05-19 | 株式会社スリーボンド | 二液型硬化性組成物 |
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| WO2016076209A1 (ja) * | 2014-11-12 | 2016-05-19 | 株式会社スリーボンド | 二液型硬化性組成物 |
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